CN104995976B

CN104995976B - Base station, terminal, resource allocation methods and system

Info

Publication number: CN104995976B
Application number: CN201380032916.9A
Authority: CN
Inventors: 张祺智; 夏亮
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-12-26
Filing date: 2013-12-26
Publication date: 2019-07-23
Anticipated expiration: 2033-12-26
Also published as: CN104995976A; WO2015096103A1

Abstract

The embodiment of the invention provides a kind of base station, terminal, resource allocation methods and systems, it is related to wireless communication field, the base station includes: request receiving module, resource determination module, first resource distribution module, first resource sending module and Secondary resource sending module.The present invention is by receiving first terminal transmission, after establishing the request that end-to-end D2D is communicated with second terminal, first terminal and the reusable resource of second terminal are determined in the allocated D2D resource, and target resource is distributed from recoverable resources, it solves in the prior art when requesting the terminal quantity for establishing D2D communication more in base station range, the problem of being likely to occur not idle D2D resource distributable situation, achievees the purpose that improve resource utilization and power system capacity.

Description

Base station, terminal, resource allocation methods and system

Technical field

The present invention relates to wireless communication field, in particular to a kind of base station, terminal, resource allocation methods and system.

Background technique

Device-to-Device (D2D, end-to-end) communication is a kind of under system control, allow between terminal directly into The technology of row communication.In D2D communication, in order to avoid the interference between each terminal, base station needs for each D2D terminal distribution Respective D2D resource.

In existing D2D resource allocation methods, base station divides a part of communication resource as D2D resource in advance；When When the discovery of one terminal can carry out the second terminal of D2D communication, is sent to base station and establish the request that D2D is communicated with second terminal；Base Stand receive the request after, detect D2D resource in whether there is idling-resource, if so, by the idling-resource part or All it is assigned as the resource that first terminal sends D2D signal of communication to second terminal.

In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems:

The resource that can be used for carrying out D2D communication is limited, when the terminal quantity for carrying out D2D communication in base station range is more When, in fact it could happen that not idle D2D resource is for distributing to the situation that the terminal of D2D communication is established in new request, the utilization of resources Rate is not high, and power system capacity is low.

Summary of the invention

In order to solve in the prior art when in base station range carry out D2D communication terminal quantity it is more when, may go out Now the problem of situation of the not idle D2D resource for distributing to the terminal that D2D communication is established in new request, the embodiment of the present invention Provide a kind of base station, terminal, resource allocation methods and system.The technical solution is as follows:

In a first aspect, providing a kind of base station, the base station includes:

Request receiving module, for receive first terminal transmission for second terminal establishing what end-to-end D2D was communicated Request；

Resource determination module, for being determined in the allocated D2D resource by the first terminal and described The recoverable resources of two terminal multiplexings；

First resource distribution module, for distributing target resource from the recoverable resources；

First resource sending module, for the target resource to be sent to the first terminal, by the first terminal D2D signal of communication is sent according to the target resource；

Secondary resource sending module, for the target resource to be sent to the second terminal, by the second terminal D2D signal of communication is received according to the target resource.

In the first possible implementation of first aspect, the resource determination module, comprising:

First instruction sending unit, for sending the first instruction to third terminal, first instruction is used to indicate described Third terminal monitors the discovery signal that the first terminal is sent；

First response receiving unit, the first response returned for receiving the third terminal, first response are used for Indicate whether the signal quality for the discovery signal that the third terminal listens to is less than predetermined quality threshold value；

Second instruction sending unit, if indicating the discovery letter that the third terminal listens to for first response Number signal quality be less than the predetermined quality threshold value, then to the second terminal send include first resource second refer to It enables, the first resource is the D2D resource for having distributed to the third terminal to receive D2D signal of communication, and described second refers to Order is used to indicate the second terminal and monitors D2D signal of communication according to the first resource；

Second response receiving unit, the second response returned for receiving the second terminal, second response are used for Indicate whether the signal strength for the D2D signal of communication that the second terminal is listened to according to the first resource is less than predetermined strength Threshold value；

First determination unit, if second response for receiving indicates the second terminal according to first money The signal strength for the D2D signal of communication that source listens to is less than the predetermined strength threshold value, then the first resource is determined as institute State recoverable resources.

The possible implementation of with reference to first aspect the first, in second of possible implementation of first aspect, institute The first response receiving unit is stated, includes the described first the first response frame responded for receive the third terminal transmission, First response frame is the third terminal after receiving first instruction, first sent according to the first resource A D2D communication frame.

In the third possible implementation of first aspect, the resource determination module, comprising:

Third instruction sending unit, it is described for including the third instruction of Secondary resource to second terminal transmission Secondary resource is the D2D resource for having distributed to the 4th terminal to receive D2D signal of communication；The third instruction is used to indicate institute It states second terminal and D2D signal of communication is monitored according to the Secondary resource；

Third responds receiving unit, and the third response returned for receiving the second terminal, the third response is used for Indicate whether the signal strength for the D2D signal of communication that the second terminal is listened to according to the Secondary resource is less than predetermined strength Threshold value；

4th instruction sending unit, if indicating that the second terminal is supervised according to the Secondary resource for third response The signal strength for the D2D signal of communication heard is less than the predetermined strength threshold value, then sends the 4th instruction to the 4th terminal, 4th instruction is used to indicate the discovery signal of the transmission of first terminal described in the 4th terminal monitoring；

4th response receiving unit, the 4th response returned for receiving the 4th terminal, the 4th response are used for Indicate the 4th terminal monitoring to the signal quality of the discovery signal whether be less than predetermined quality threshold value；

Second determination unit, if the 4th response for receiving indicates the hair that the 4th terminal monitoring arrives The signal quality of existing signal is less than the predetermined quality threshold value, then the Secondary resource is determined as the recoverable resources.

The third possible implementation with reference to first aspect, in the 4th kind of possible implementation of first aspect, institute The 4th response receiving unit is stated, includes the described 4th the second response frame responded for receive the 4th terminal transmission, Second response frame is the 4th terminal after receiving the 4th instruction, first sent according to the Secondary resource A D2D communication frame.

With reference to first aspect, in the possible implementation of the first of first aspect, second of first aspect can be able to achieve 4th kind of possible implementation of mode, the third possible implementation of first aspect or first aspect, in first aspect The 5th kind of possible implementation in, the base station further include:

First detection module, for detecting after distributing target resource in the recoverable resources, the target resource It is whether sufficient；

Second detection module is examined if the testing result for the first detection module is that the target resource is insufficient It surveys with the presence or absence of idle D2D resource；

Secondary resource distribution module, if the testing result for second detection module is the D2D resource in the presence of the free time, Then the target resource is distributed from the D2D resource of the free time.

With reference to first aspect, in the possible implementation of the first of first aspect, second of first aspect can be able to achieve 4th kind of possible implementation of mode, the third possible implementation of first aspect or first aspect, in first aspect The 6th kind of possible implementation in, the base station further include:

Third detection module, for distributing target resource from the recoverable resources in the first resource distribution module Before, it detects whether in the presence of idle D2D resource；

Information resources distribution module, if the testing result for the third detection module is the D2D resource in the presence of the free time, Then the target resource is distributed from the D2D resource of the free time；

4th detection module, for detecting after distributing the target resource in the D2D resource of the free time, the mesh Whether sufficient mark resource；

The first resource distribution module, if for the 4th detection module testing result be the target resource not Foot then executes described the step of distributing target resource from the recoverable resources.

Second aspect, provides a kind of base station, and the base station includes: receiver, processor and transmitter；

The receiver, for receive first terminal transmission for being asked with what second terminal established that end-to-end D2D communicates It asks；

The processor, for being determined in the allocated D2D resource by the first terminal and described second The recoverable resources of terminal multiplexing；

The processor, for distributing target resource from the recoverable resources；

The target resource is sent to the first terminal and described for controlling the transmitter by the processor Two terminals send D2D signal of communication according to the target resource by the first terminal, and as the second terminal according to Target resource receives D2D signal of communication.

In the first possible implementation of second aspect, the processor, for controlling the transmitter to third Terminal sends the first instruction, and first instruction is used to indicate the third terminal and monitors the discovery letter that the first terminal is sent Number；

The receiver, the first response returned for receiving the third terminal, first response are used to indicate institute Whether the signal quality for stating the discovery signal that third terminal listens to is less than predetermined quality threshold value；

The processor, if indicating the letter for the discovery signal that the third terminal listens to for first response Number quality is less than the predetermined quality threshold value, then control the transmitter to second terminal transmission include first resource Second instruction, the first resource is the D2D resource for having distributed to the third terminal to receive D2D signal of communication, described Second instruction is used to indicate the second terminal and monitors D2D signal of communication according to the first resource；

The receiver, the second response returned for receiving the second terminal, second response are used to indicate institute Whether the signal strength for stating the D2D signal of communication that second terminal is listened to according to the first resource is less than predetermined strength threshold value；

The processor, if second response for the receiver to receive indicates the second terminal according to institute The signal strength for stating the D2D signal of communication that first resource listens to is less than the predetermined strength threshold value, then by the first resource It is determined as the recoverable resources.

In conjunction with the first possible implementation of second aspect, in second of possible implementation of second aspect, institute Receiver is stated, includes the described first the first response frame responded, first sound for receive the third terminal transmission Answering frame is the third terminal after receiving first instruction, is communicated according to first D2D that the first resource is sent Frame.

In the third possible implementation of second aspect, the processor, for controlling the transmitter to described Second terminal transmission includes the third instruction of Secondary resource, and the Secondary resource is to have distributed to the 4th terminal to receive The D2D resource of D2D signal of communication；The third instruction is used to indicate the second terminal and monitors D2D according to the Secondary resource Signal of communication；

The receiver, the third response returned for receiving the second terminal, the third response are used to indicate institute Whether the signal strength for stating the D2D signal of communication that second terminal is listened to according to the Secondary resource is less than predetermined strength threshold value；

The processor, if indicating what the second terminal was listened to according to the Secondary resource for third response The signal strength of D2D signal of communication is less than the predetermined strength threshold value, then controls the transmitter and send to the 4th terminal 4th instruction, the 4th instruction are used to indicate the discovery signal of the transmission of first terminal described in the 4th terminal monitoring；

The receiver, the 4th response returned for receiving the 4th terminal, the 4th response are used to indicate institute State the 4th terminal monitoring to the signal quality of the discovery signal whether be less than predetermined quality threshold value；

The processor, if the 4th response for the receiver to receive indicates that the 4th terminal monitoring arrives The discovery signal signal quality be less than the predetermined quality threshold value, then the Secondary resource is determined as the reusable Resource.

In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation of second aspect, institute The receiver, for receive that the 4th terminal sends include the 4th response the second response frame, described second Response frame is the 4th terminal after receiving the 4th instruction, and first D2D sent according to the Secondary resource is logical Believe frame.

In the first possible implementation in conjunction with second aspect, second aspect, it can be able to achieve second of second aspect 4th kind of possible implementation of mode, the third possible implementation of second aspect or second aspect, in second aspect The 5th kind of possible implementation in, the processor, be also used to detect from the recoverable resources distribute target resource it Afterwards, whether the target resource is sufficient；

The processor detects whether if being that the target resource is insufficient for testing result in the presence of idle D2D money Source；

The processor, if being in the presence of idle D2D resource, from the D2D resource of the free time for testing result Distribute the target resource.

In the first possible implementation in conjunction with second aspect, second aspect, it can be able to achieve second of second aspect 4th kind of possible implementation of mode, the third possible implementation of second aspect or second aspect, in second aspect The 6th kind of possible implementation in, the processor, for from the recoverable resources distribute target resource before, inspection It surveys with the presence or absence of idle D2D resource；

The processor, if being in the presence of idle D2D resource, from the D2D resource of the free time for testing result Distribute the target resource；

The processor, for detecting after distributing the target resource in the D2D resource of the free time, the target Whether resource is sufficient；

The processor, if being that the target resource is insufficient for testing result, execution is described to be provided from the reusable The step of target resource, is distributed in source.

The third aspect, provides first terminal, and the first terminal includes:

Request sending module, it is described for sending to base station for establishing the request that end-to-end D2D is communicated with second terminal Request is used to indicate the base station and is determined in the allocated D2D resource by the first terminal and the second terminal The recoverable resources of multiplexing, and target resource is distributed from the recoverable resources；

First resource receiving module, the target resource sent for receiving the base station；

Signal of communication sending module, for sending D2D signal of communication to the second terminal according to the target resource.

In the first possible implementation of the third aspect, the first terminal further include:

It was found that signal transmitting module, finds signal for periodicity sending.

Fourth aspect, provides first terminal, and the first terminal includes: processor, transmitter and receiver；

The processor leads to for controlling the transmitter and sending to base station for establishing end-to-end D2D with second terminal The request of letter, the request are used to indicate the base station and are determined in the allocated D2D resource by the first terminal The recoverable resources being multiplexed with the second terminal, and target resource is distributed from the recoverable resources；

The receiver, the target resource sent for receiving the base station；

The processor is logical to second terminal transmission D2D according to the target resource for controlling the transmitter Believe signal.

In the first possible implementation of fourth aspect, the processor is also used to control the transmitter period Property send discovery signal.

5th aspect, provides second terminal, the second terminal includes:

Secondary resource receiving module, for receiving the target resource of base station transmission, the target resource is that the base station connects Receive first terminal transmission for after establishing the request that end-to-end D2D is communicated with the second terminal, in the allocated D2D It is determined to the recoverable resources being multiplexed by the first terminal and the second terminal in resource, and from the recoverable resources The resource of middle distribution；

Signal of communication receiving module, for receiving the D2D communication letter that the first terminal is sent according to the target resource Number.

In the first possible implementation of the 5th aspect, the second terminal further include:

Second command reception module, for the Secondary resource receiving module receive base station send target resource it Before, receive the base station transmission includes the second instruction of first resource, and the first resource is to have distributed to third terminal To receive the D2D resource of D2D signal of communication；

First monitors module, for monitoring D2D signal of communication according to the first resource；

5th detection module is obtained for detecting the signal strength of the D2D signal of communication listened to according to the first resource Obtain the first testing result；

Second response sending module, it is described for sending the second response to the base station according to first testing result Whether the signal strength that the second response is used to indicate the D2D signal of communication listened to according to the first resource is less than predetermined strength Threshold value.

In second of possible implementation of the 5th aspect, the second terminal further include:

Third command reception module, for the Secondary resource receiving module receive base station send target resource it Before, receive the base station transmission includes the third instruction of Secondary resource, and the Secondary resource is to have distributed to the 4th terminal To receive the resource of D2D signal of communication；

Second monitors module, for monitoring D2D signal of communication according to the Secondary resource；

6th detection module is obtained for detecting the signal strength of the D2D signal of communication listened to according to the Secondary resource Obtain the second testing result；

Third responds sending module, described for sending third response to the base station according to second testing result Whether the signal strength that third response is used to indicate the D2D signal of communication listened to according to the Secondary resource is less than predetermined strength Threshold value.

6th aspect, provides second terminal, the second terminal includes: receiver and processor；

The receiver, for receiving the target resource of base station transmission, the target resource is that the base station receives the After what one terminal was sent is used to establish the request that end-to-end D2D is communicated with the second terminal, in the allocated D2D resource It is determined to the recoverable resources being multiplexed by the first terminal and the second terminal, and is distributed from the recoverable resources Resource；

The processor receives what the first terminal was sent according to the target resource for controlling the receiver D2D signal of communication.

In the first possible implementation of the 6th aspect, the second terminal further include: transmitter；

The receiver is also used to before receiving the target resource that base station is sent, and receive the base station transmission includes There is the second instruction of first resource, the first resource is to have distributed to third terminal to provide to receive the D2D of D2D signal of communication Source；

The processor monitors D2D signal of communication according to the first resource for controlling the receiver；

The processor is obtained for detecting the signal strength of the D2D signal of communication listened to according to the first resource First testing result；

The processor sends the second sound to the base station according to first testing result for controlling the transmitter It answers, whether the signal strength that second response is used to indicate the D2D signal of communication listened to according to the first resource is less than Predetermined strength threshold value.

In second of possible implementation of the 6th aspect, the second terminal further include: transmitter；

The receiver includes for before receiving the target resource that base station is sent, receive that the base station sends The third of Secondary resource instructs, and the Secondary resource is to have distributed to resource of the 4th terminal to receive D2D signal of communication；

The processor monitors D2D signal of communication according to the Secondary resource for controlling the receiver；

The processor is obtained for detecting the signal strength of the D2D signal of communication listened to according to the Secondary resource Second testing result；

The processor sends third sound to the base station according to second testing result for controlling the transmitter It answers, whether the signal strength that the third response is used to indicate the D2D signal of communication listened to according to the Secondary resource is less than Predetermined strength threshold value.

7th aspect, provides third terminal, the third terminal includes:

First command reception module, for receiving the first instruction of base station transmission, first instruction is that the base station exists Receive the instruction for sending after establishing the request that D2D is communicated with second terminal of first terminal transmission；

Third monitors module, the discovery signal sent for monitoring the first terminal；

7th detection module monitors the signal quality for the discovery signal that module listens to for detecting the third, Obtain third testing result；

First response sending module, for sending the first response to the base station according to the third testing result；By institute Base station is stated when the signal quality for the discovery signal that the first response instruction listens to is less than predetermined quality threshold value, to institute It states second terminal transmission and includes the second instruction of first resource, and receive the second response that the second terminal returns, and Second response indicates that the signal strength for the D2D signal of communication that the second terminal is listened to according to the first resource is less than When predetermined strength threshold value, the first resource is determined as recoverable resources, distributes target resource from the recoverable resources, And the target resource is sent to the first terminal and the second terminal, it is provided by the first terminal according to the target Source sends D2D signal of communication, and receives D2D signal of communication according to the target resource by the second terminal；

Wherein, the first resource is the D2D resource for having distributed to the third terminal to receive D2D signal of communication, Second instruction is used to indicate the second terminal and monitors D2D signal of communication according to the first resource；Second response Be used to indicate the D2D signal of communication that the second terminal is listened to according to the first resource signal strength whether be less than it is described Predetermined strength threshold value.

In the first possible implementation of the 7th aspect, the first response sending module is used for the base station Transmission includes the first response frame of first response, and first response frame is the root after receiving first instruction The first D2D communication frame sent according to the first resource.

Eighth aspect, provides third terminal, and the third terminal includes: receiver, processor and transmitter；

The receiver, for receiving the first instruction of base station transmission, first instruction is that the base station is receiving The instruction for being sent after establishing the request that D2D is communicated with second terminal that first terminal is sent；

The processor monitors the discovery signal that the first terminal is sent for controlling the receiver；

The processor obtains third testing result for the signal quality for the discovery signal that Anti-Sniffer arrives；

The processor sends the first sound to the base station according to the third testing result for controlling the transmitter It answers；Indicate that the signal quality of the discovery signal listened to is less than predetermined quality threshold value in first response by the base station When, the transmission of Xiang Suoshu second terminal includes the second instruction of first resource, and receives the second sound that the second terminal returns It answers, and indicates the signal for the D2D signal of communication that the second terminal is listened to according to the first resource in second response When intensity is less than predetermined strength threshold value, the first resource is determined as recoverable resources, is distributed from the recoverable resources Target resource, and the target resource is sent to the first terminal and the second terminal, by the first terminal according to The target resource sends D2D signal of communication, and receives D2D signal of communication according to the target resource by the second terminal；

In the first possible implementation of eighth aspect, the processor, for controlling the transmitter to described It includes the described first the first response frame responded that base station, which is sent, and first response frame is to receive first instruction Afterwards, the first D2D communication frame sent according to the first resource.

9th aspect, provides the 4th terminal, the 4th terminal includes:

4th command reception module, for receiving the 4th instruction of base station transmission；4th instruction is that the base station exists Receive first terminal transmission for establishing the request that D2D communicate with second terminal, Xiang Suoshu second terminal, which is sent, includes The third of Secondary resource instructs, and receives the third response that the second terminal returns, and in third response instruction described the The signal strength for the D2D signal of communication that two terminals are listened to according to the Secondary resource is less than the finger sent when predetermined strength threshold value It enables；The Secondary resource is the resource for having distributed to the 4th terminal to receive D2D signal of communication, and the third instruction is used In indicating that the second terminal monitors D2D signal of communication according to the Secondary resource, the third response is used to indicate described the Whether the signal strength for the D2D signal of communication that two terminals are listened to according to the Secondary resource is less than the predetermined strength threshold value；

4th monitors module, the discovery signal sent for monitoring the first terminal；

8th detection module obtains the 4th testing result for the signal quality for the discovery signal that Anti-Sniffer arrives；

4th response sending module, for sending the 4th response to the base station according to the 4th testing result；It is described Whether the signal quality that the 4th response is used to indicate the discovery signal listened to is less than predetermined quality threshold value；By the base station It, will be described when the signal quality for the discovery signal that the 4th response instruction listens to is less than the predetermined quality threshold value Secondary resource is determined as recoverable resources, target resource is distributed from the recoverable resources, and the target resource is sent To the first terminal and the second terminal, D2D signal of communication is sent according to the target resource by the first terminal, and D2D signal of communication is received according to the target resource by the second terminal.

In the first possible implementation of the 9th aspect, the 4th response sending module is used for the base station Transmission includes the second response frame of the 4th response, and second response frame is receiving the 4th instruction to be described Afterwards, the first D2D communication frame sent according to the Secondary resource.

Tenth aspect, provides the 4th terminal, the 4th terminal includes: receiver, processor and transmitter；

The receiver, for receiving the 4th instruction of base station transmission；4th instruction is that the base station is receiving What first terminal was sent is used to establish the request that D2D is communicated with second terminal, and the transmission of Xiang Suoshu second terminal includes the second money The third in source instructs, and receives the third response that the second terminal returns, and indicate the second terminal in third response The signal strength of the D2D signal of communication listened to according to the Secondary resource is less than the instruction sent when predetermined strength threshold value；Institute Stating Secondary resource is the resource for having distributed to the 4th terminal to receive D2D signal of communication, and the third instruction is for referring to Show that the second terminal monitors D2D signal of communication according to the Secondary resource, the third response is used to indicate described second eventually Hold whether the signal strength of the D2D signal of communication listened to according to the Secondary resource is less than the predetermined strength threshold value；

The processor obtains the 4th testing result for the signal quality for the discovery signal that Anti-Sniffer arrives；

The processor sends the 4th sound to the base station according to the 4th testing result for controlling the transmitter It answers；Whether the signal quality that the 4th response is used to indicate the discovery signal listened to is less than predetermined quality threshold value；By The base station is less than the predetermined quality threshold value in the signal quality for the discovery signal that the 4th response instruction listens to When, the Secondary resource is determined as recoverable resources, distributes target resource from the recoverable resources, and by the target Resource is sent to the first terminal and the second terminal, sends D2D according to the target resource by the first terminal and leads to Believe signal, and D2D signal of communication is received according to the target resource by the second terminal.

In the first possible implementation of the tenth aspect, the processor, for controlling the transmitter to described It includes the described 4th the second response frame responded that base station, which is sent, and second response frame is receiving the 4th finger to be described After order, according to first D2D communication frame of Secondary resource transmission.

On the one hand tenth, provides a kind of resource allocation methods, in base station, which comprises

What reception first terminal was sent is used to establish the request that end-to-end D2D is communicated with second terminal；

The reusable being multiplexed by the first terminal and the second terminal is determined in the allocated D2D resource Resource；

Target resource is distributed from the recoverable resources；

The target resource is sent to the first terminal and the second terminal, as the first terminal according to Target resource sends D2D signal of communication, and receives D2D signal of communication according to the target resource by the second terminal.

It is described to be determined in the allocated D2D resource in the first possible implementation of the tenth one side The recoverable resources being multiplexed by the first terminal and the second terminal, comprising:

The first instruction is sent to third terminal, first instruction is used to indicate the third terminal and monitors described first eventually Hold the discovery signal sent；

The first response that the third terminal returns is received, first response is used to indicate the third terminal and listens to The signal quality of the discovery signal whether be less than predetermined quality threshold value；

If it is described that first response indicates that the signal quality for the discovery signal that the third terminal listens to is less than Predetermined quality threshold value then includes the second instruction of first resource to second terminal transmission, and the first resource is to have divided D2D resource of the third terminal described in dispensing to receive D2D signal of communication, second instruction are used to indicate the second terminal D2D signal of communication is monitored according to the first resource；

The second response that the second terminal returns is received, second response is used to indicate the second terminal according to institute Whether the signal strength for stating the D2D signal of communication that first resource listens to is less than predetermined strength threshold value；

If second response received indicates that the second terminal is communicated according to the D2D that the first resource listens to The signal strength of signal is less than the predetermined strength threshold value, then the first resource is determined as the recoverable resources.

In conjunction with the first possible implementation of the tenth one side, second in the tenth one side may implementation In, first response for receiving the third terminal and returning, comprising:

Receive the third terminal transmission includes the first response frame of first response, and first response frame is The third terminal is after receiving first instruction, according to first D2D communication frame of first resource transmission.

It is described to be determined in the allocated D2D resource in the third possible implementation of the tenth one side The recoverable resources being multiplexed by the first terminal and the second terminal, comprising:

It include the third instruction of Secondary resource to second terminal transmission, the Secondary resource is to have distributed to the 4th D2D resource of the terminal to receive D2D signal of communication；The third instruction is used to indicate the second terminal according to described second Resource monitors D2D signal of communication；

The third response that the second terminal returns is received, the third response is used to indicate the second terminal according to institute Whether the signal strength for stating the D2D signal of communication that Secondary resource listens to is less than predetermined strength threshold value；

If the third response indicates the letter for the D2D signal of communication that the second terminal is listened to according to the Secondary resource Number intensity is less than the predetermined strength threshold value, then sends the 4th instruction to the 4th terminal, and the 4th instruction is used to indicate The discovery signal that first terminal described in 4th terminal monitoring is sent；

The 4th response that the 4th terminal returns is received, the 4th response is used to indicate the 4th terminal monitoring and arrives The signal quality of the discovery signal whether be less than predetermined quality threshold value；

If the 4th response received indicates the signal quality for the discovery signal that the 4th terminal monitoring arrives Less than the predetermined quality threshold value, then the Secondary resource is determined as the recoverable resources.

In conjunction with the third possible implementation of the tenth one side, in the 4th kind of possible implementation of the tenth one side In, the 4th response for receiving the 4th terminal and returning, comprising:

Receive the 4th terminal transmission includes the second response frame of the 4th response, and second response frame is 4th terminal is after receiving the 4th instruction, according to first D2D communication frame of Secondary resource transmission.

In conjunction with the tenth on the one hand, in the first possible implementation of first aspect, second of the tenth one side may 4th kind of possible implementation of implementation, the third possible implementation of the tenth one side or the tenth one side, In 5th kind of possible implementation of the tenth one side, the method also includes:

After distributing target resource in the recoverable resources, whether the target resource is sufficient for detection；

If testing result is that the target resource is insufficient, detect whether in the presence of idle D2D resource；

If testing result is to distribute the target money from the D2D resource of the free time in the presence of idle D2D resource Source.

In conjunction with the tenth on the one hand, in the first possible implementation of the tenth one side, second of the tenth one side can It is able to achieve the 4th kind of possible implementation of mode, the third possible implementation of the tenth one side or the tenth one side, It is described before distributing target resource in the recoverable resources in the 6th kind of possible implementation of the tenth one side, institute State method further include:

It detects whether in the presence of idle D2D resource；

If testing result is to distribute the target money from the D2D resource of the free time in the presence of idle D2D resource Source；

After distributing the target resource in the D2D resource of the free time, whether the target resource is sufficient for detection；

If testing result is that the target resource is insufficient, execution is described to distribute target resource from the recoverable resources Step.

12nd aspect, provides a kind of resource allocation methods, in first terminal, which comprises

It sends to base station for establishing the request that end-to-end D2D is communicated with second terminal, the request is used to indicate described Base station is determined to the reusable money being multiplexed by the first terminal and the second terminal in the allocated D2D resource Source, and target resource is distributed from the recoverable resources；

Receive the target resource that the base station is sent；

D2D signal of communication is sent to the second terminal according to the target resource.

In the first possible implementation of the 12nd aspect, the method also includes:

Periodicity sending finds signal.

13rd aspect, provides a kind of resource allocation methods, in second terminal, which comprises

The target resource that base station is sent is received, the target resource is that the base station receives being used for for first terminal transmission After establishing the request that end-to-end D2D is communicated with the second terminal, it is determined in the allocated D2D resource by described The recoverable resources of one terminal and second terminal multiplexing, and the resource distributed from the recoverable resources；

The D2D signal of communication that the first terminal is sent is received according to the target resource.

In the first possible implementation of the 13rd aspect, before the target resource for receiving base station transmission, institute State method further include:

Receive the base station transmission includes the second instruction of first resource, and the first resource is to have distributed to third D2D resource of the terminal to receive D2D signal of communication；

D2D signal of communication is monitored according to the first resource；

The signal strength of the D2D signal of communication listened to according to the first resource is detected, the first testing result is obtained；

The second response is sent to the base station according to first testing result, second response is used to indicate according to institute Whether the signal strength for stating the D2D signal of communication that first resource listens to is less than predetermined strength threshold value.The of the 13rd aspect In two kinds of possible implementations, before the target resource for receiving base station transmission, the method also includes:

Receive the base station transmission includes the third instruction of Secondary resource, and the Secondary resource is to have distributed to the 4th Resource of the terminal to receive D2D signal of communication；

D2D signal of communication is monitored according to the Secondary resource；

The signal strength of the D2D signal of communication listened to according to the Secondary resource is detected, the second testing result is obtained；

Third response is sent to the base station according to second testing result, the third response is used to indicate according to institute Whether the signal strength for stating the D2D signal of communication that Secondary resource listens to is less than predetermined strength threshold value.

Fourteenth aspect provides a kind of resource allocation methods, in third terminal, which comprises

The first instruction that base station is sent is received, first instruction is the base station in the use for receiving first terminal transmission The instruction sent after establishing the request that D2D is communicated with second terminal；

Monitor the discovery signal that the first terminal is sent；

The signal quality for the discovery signal that Anti-Sniffer arrives obtains third testing result；

The first response is sent to the base station according to the third testing result；Referred to by the base station in first response When showing that the signal quality of the discovery signal listened to is less than predetermined quality threshold value, the transmission of Xiang Suoshu second terminal includes the Second instruction of one resource, and receive the second response that the second terminal returns, and in the second response instruction described the It, will be described when the signal strength for the D2D signal of communication that two terminals are listened to according to the first resource is less than predetermined strength threshold value First resource is determined as recoverable resources, target resource is distributed from the recoverable resources, and the target resource is sent To the first terminal and the second terminal, D2D signal of communication is sent according to the target resource by the first terminal, and D2D signal of communication is received according to the target resource by the second terminal；

In the first possible implementation of fourteenth aspect, it is described according to the third testing result to the base station Send the first response, comprising:

Sending to the base station includes the described first the first response frame responded, and first response frame is to receive After first instruction, according to first D2D communication frame of first resource transmission.

15th aspect, provides a kind of resource allocation methods, in the 4th terminal, which comprises

Receive the 4th instruction that base station is sent；4th instruction is the base station in the use for receiving first terminal transmission In establishing the request that D2D is communicated with second terminal, the transmission of Xiang Suoshu second terminal includes the third instruction of Secondary resource, is received The third response that the second terminal returns, and indicate that the second terminal is supervised according to the Secondary resource in third response The signal strength for the D2D signal of communication heard is less than the instruction sent when predetermined strength threshold value；The Secondary resource is to have distributed Resource to the 4th terminal to receive D2D signal of communication, third instruction be used to indicate the second terminal according to The Secondary resource monitors D2D signal of communication, and the third response is used to indicate the second terminal according to the Secondary resource Whether the signal strength of the D2D signal of communication listened to is less than the predetermined strength threshold value；

Monitor the discovery signal that the first terminal is sent；

The signal quality for the discovery signal that Anti-Sniffer arrives obtains the 4th testing result；

The 4th response is sent to the base station according to the 4th testing result；4th response, which is used to indicate, to be listened to The signal quality of the discovery signal whether be less than predetermined quality threshold value；It is monitored by the base station in the 4th response instruction When the signal quality of the discovery signal arrived is less than the predetermined quality threshold value, the Secondary resource is determined as reusable money Source distributes target resource from the recoverable resources, and the target resource is sent to the first terminal and described Two terminals send D2D signal of communication according to the target resource by the first terminal, and as the second terminal according to Target resource receives D2D signal of communication.

In the first possible implementation of the 15th aspect, it is described according to the 4th testing result to the base station Send the 4th response, comprising:

Sending to the base station includes the described 4th the second response frame responded, and second response frame is described connecing After receiving the 4th instruction, according to first D2D communication frame of Secondary resource transmission.

16th aspect, provides a kind of resource allocation system, the system comprises:

Base station, first terminal, second terminal and at least one third terminal and/or at least one as described in terms of above-mentioned A 4th terminal.

The beneficial effect of technical solution provided in an embodiment of the present invention is:

By receiving first terminal transmission, after the request that end-to-end D2D is communicated is established with second terminal, First terminal and the reusable resource of second terminal are determined in the D2D resource of distribution, and target money is distributed from recoverable resources Source solves in the prior art when requesting the terminal quantity for establishing D2D communication more in base station range, in fact it could happen that do not have The problem of available free D2D resource distributable situation, achievees the purpose that improve resource utilization and power system capacity.

Detailed description of the invention

To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.

Fig. 1 is the equipment composition figure of base station provided by one embodiment of the present invention；

Fig. 2 be another embodiment of the present invention provides base station equipment composition figure；

Fig. 3 is the equipment composition figure for the base station that further embodiment of this invention provides；

Fig. 4 is the equipment composition figure for the base station that yet another embodiment of the invention provides；

Fig. 5 is the equipment composition figure of first terminal provided by one embodiment of the present invention；

Fig. 6 be another embodiment of the present invention provides first terminal equipment composition figure；

Fig. 7 is the equipment composition figure for the first terminal that further embodiment of this invention provides；

Fig. 8 is the equipment composition figure for the first terminal that yet another embodiment of the invention provides；

Fig. 9 is the equipment composition figure of second terminal provided by one embodiment of the present invention；

Figure 10 be another embodiment of the present invention provides second terminal equipment composition figure；

Figure 11 is the equipment composition figure for the second terminal that further embodiment of this invention provides；

Figure 12 is the equipment composition figure for the second terminal that yet another embodiment of the invention provides；

Figure 13 is the equipment composition figure of third terminal provided by one embodiment of the present invention；

Figure 14 be another embodiment of the present invention provides third terminal equipment composition figure；

Figure 15 is the equipment composition figure for the third terminal that further embodiment of this invention provides；

Figure 16 is the equipment composition figure for the third terminal that yet another embodiment of the invention provides；

Figure 17 is the equipment composition figure of the 4th terminal provided by one embodiment of the present invention；

Figure 18 be another embodiment of the present invention provides the 4th terminal equipment composition figure；

Figure 19 is the equipment composition figure for the 4th terminal that further embodiment of this invention provides；

Figure 20 is the equipment composition figure for the 4th terminal that yet another embodiment of the invention provides；

Figure 21 is the method flow diagram of resource allocation methods provided by one embodiment of the present invention；

Figure 22 be another embodiment of the present invention provides resource allocation methods method flow diagram；

Figure 23 is the method flow diagram for the resource allocation methods that further embodiment of this invention provides；

Figure 24 is the method flow diagram of resource allocation methods provided by one embodiment of the present invention；

Figure 25 be another embodiment of the present invention provides resource allocation methods method flow diagram；

Figure 26 is the method flow diagram of resource allocation methods provided by one embodiment of the present invention；

Figure 27 be another embodiment of the present invention provides resource allocation methods method flow diagram；

Figure 28 is the method flow diagram for the resource allocation methods that further embodiment of this invention provides；

Figure 29 is the method flow diagram of resource allocation methods provided by one embodiment of the present invention；

Figure 30 be another embodiment of the present invention provides resource allocation methods method flow diagram；

Figure 31 is the method flow diagram of resource allocation methods provided by one embodiment of the present invention；

Figure 32 be another embodiment of the present invention provides resource allocation methods method flow diagram；

Figure 33 is the method flow diagram of resource allocation methods provided by one embodiment of the present invention；

Figure 34 be another embodiment of the present invention provides resource allocation methods method flow diagram；

Figure 35 is the system pie graph of resource allocation system provided by one embodiment of the present invention.

Specific embodiment

To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention Formula is described in further detail.

Referring to Figure 1, it constitutes and schemes it illustrates the equipment of base station provided by one embodiment of the present invention.The base station can be used In the terminal distribution D2D resource for request D2D communication.The base station may include:

Request receiving module 101, for receiving communicating for establishing end-to-end D2D with second terminal for first terminal transmission Request；

Resource determination module 102, for be determined in the allocated D2D resource by the first terminal and this second The recoverable resources of terminal multiplexing；

Wherein, which is to be assigned to receive the hair that the first terminal that the terminal that D2D is communicated receives is sent The signal quality of existing signal is less than predetermined quality threshold value, and the signal strength of D2D signal of communication that second terminal receives accordingly Less than the resource of predetermined strength threshold value.

Specifically, the recoverable resources need to satisfy two conditions:: first, be assigned the recoverable resources to receive The signal quality for the discovery signal that the first terminal that the terminal of D2D communication receives is sent is less than predetermined quality threshold value；The second, the The signal strength for the D2D signal of communication that two terminals are received according to the recoverable resources is less than predetermined strength threshold value.

First resource distribution module 103, for distributing target resource from the recoverable resources；

First resource sending module 104, for the target resource to be sent to the first terminal, by the first terminal according to The target resource sends D2D signal of communication；

Secondary resource sending module 105, for the target resource to be sent to the second terminal, by the second terminal according to The target resource receives D2D signal of communication.

In conclusion base station provided in an embodiment of the present invention, by receiving first terminal transmission, with second terminal After establishing the request of end-to-end D2D communication, determine that first terminal and second terminal are reusable in the allocated D2D resource Resource, and target resource is distributed from recoverable resources, solve in the prior art when in base station range request establish D2D When the terminal quantity of communication is more, in fact it could happen that the problem of not idle D2D resource distributable situation, reach raising money The purpose of source utilization rate and power system capacity.

Refer to Fig. 2, it illustrates another embodiment of the present invention provides base station equipment constitute figure.The base station can be used The D2D resource that D2D signal of communication is sent to second terminal is distributed in the first terminal for request D2D communication.The base station can wrap It includes:

Request receiving module 201, for receiving communicating for establishing end-to-end D2D with second terminal for first terminal transmission Request；

Support the terminal of D2D communication that can periodically send discovery signal Discovery on scheduled running time-frequency resource Signal can carry out D2D communication with the second terminal when first terminal receives the discovery signal of second terminal transmission and detects When, the request that D2D communication is carried out with the second terminal can be sent to base station.

Resource determination module 202, for be determined in the allocated D2D resource by the first terminal and this second The recoverable resources of terminal multiplexing；

Wherein, which is to be assigned to receive the discovery that the terminal that D2D is communicated receives first terminal transmission The signal quality of signal is less than predetermined quality threshold value, and the signal strength of D2D signal of communication that second terminal receives accordingly is small In the resource of predetermined strength threshold value.The D2D resource can be running time-frequency resource.

Specifically, the recoverable resources need to satisfy two conditions:: first, be assigned the recoverable resources to receive The signal quality for the discovery signal that the first terminal that the terminal of D2D communication receives is sent is less than predetermined quality threshold value；The second, the The signal strength for the D2D signal of communication that two terminals are received according to the recoverable resources is less than predetermined strength threshold value.Wherein, meet First condition shows when first terminal sends D2D signal of communication to second terminal by the recoverable resources, to except second Other terminals for receiving D2D signal of communication using the recoverable resources except terminal will not have an impact；Meet second item Part shows that other terminals in addition to first terminal will not to second terminal using the D2D signal of communication that the recoverable resources is sent It has an impact.

The previously known reference content of each terminal, each D2D can be carried in the discovery signal that first terminal is sent After terminal receives discovery signal, discovery signal is parsed, and the content that parsing obtains is compared with reference content, Obtain parsing accuracy rate, and the signal quality for the discovery signal that the parsing accuracy rate is sent as the first terminal received.

Wherein, the discovery signal that first terminal is sent may be found the interference of signal by other terminal transmissions.It receives What termination received is the mixed signal of discovery signal and interference signal that first terminal is sent, if using signal strength as foundation, Receiving end can only measure the intensity of this mixed signal, can not represent the signal strength of the discovery signal of first terminal, therefore, The embodiment of the present invention sets judgment threshold according to the signal quality of the discovery signal of first terminal, can be improved the accurate of judgement Property.

For second terminal when detecting the interference in allocated D2D resource, need to detect is on a certain running time-frequency resource Total interference, the interference is needed not distinguish between from which D2D terminal, therefore it may only be necessary to detect according to allocated D2D resource The signal strength of the signal of communication received.

First resource distribution module 203, for distributing target resource from the recoverable resources；

Base station can from all qualified recoverable resources distribution portion or whole resource as target resource.

First resource sending module 204, for the target resource to be sent to the first terminal, by the first terminal according to The target resource sends D2D signal of communication；

Secondary resource sending module 205, for the target resource to be sent to the second terminal, by the second terminal according to The target resource receives D2D signal of communication.

The resource determination module 202, comprising:

First instruction sending unit 202a, for sending the first instruction to third terminal, which is used to indicate this Third terminal monitors the discovery signal of first terminal transmission；

First response receiving unit 202b, for receiving the first response of third terminal return, which is used for Indicate whether the signal quality for the discovery signal that the third terminal listens to is less than predetermined quality threshold value；

Second instruction sending unit 202c, if indicating the discovery signal that the third terminal listens to for first response Signal quality be less than the predetermined quality threshold value, then sent to the second terminal include first resource the second instruction, this One resource is the D2D resource for having distributed to the third terminal to receive D2D signal of communication, second instruction be used to indicate this Two terminals monitor D2D signal of communication according to the first resource；

Second response receiving unit 202d, for receiving the second response of second terminal return, which is used for Indicate whether the signal strength for the D2D signal of communication that the second terminal is listened to according to the first resource is less than predetermined strength threshold Value；

First determination unit 202e, if second response for receiving indicates the second terminal according to the first resource The signal strength of the D2D signal of communication listened to is less than the predetermined strength threshold value, then the first resource is determined as the reusable Resource.

Wherein, the detection ordering of above-mentioned two condition can be configured according to the actual situation, can first detect first Condition, then detect second condition；Second condition can also be first detected, then detects first condition.

First condition is detected in the ban, then when detecting second condition, base station can be by high-level signaling to the allocated The each terminal for having D2D resource to carry out D2D communication sends the first instruction, after each D2D terminal receives first instruction, pre- The discovery signal Discovery signal monitoring first terminal and sending on fixed running time-frequency resource, and believed according to the discovery listened to Number the first response is returned to base station, base station judge the discovery of first terminal transmission which terminal monitoring arrives according to first response The signal quality of signal is less than predetermined quality threshold value, and the signal that will distribute to the discovery signal that the first terminal listened to is sent The D2D resource that quality is less than the terminal of predetermined quality threshold value is determined as first resource.It includes this that base station is sent to second terminal Second instruction of first resource is monitored other terminals according to the Secondary resource and is passed through after second terminal receives second instruction The D2D signal of communication that the Secondary resource is sent, and the second response is returned to base station according to snoop results, base station is according to second sound Should determine the D2D signal of communication that second terminal listens to accordingly signal strength be less than predetermined signal strength threshold value resource be can Multiplexed resource.

It should be noted that in the response that second terminal or D2D terminal are returned to base station, will can directly listen to The signal quality of the discovery signal of the intensity or first terminal of D2D signal of communication is sent to base station, strong by base station detection signal Degree whether is less than predetermined strength threshold value or whether signal quality is less than predetermined quality threshold value；Second terminal or D2D terminal Can first detect whether signal strength is less than predetermined strength threshold value or whether signal quality is less than predetermined quality threshold value, and will inspection It surveys result carrying and is sent to base station in the response.

First response receiving unit 202b includes the first of first response for receive third terminal transmission Response frame, first response frame are the third terminal after receiving first instruction, first sent according to the first resource A D2D communication frame.

The resource determination module 202, comprising:

Third instruction sending unit 202f should for including the third instruction of Secondary resource to second terminal transmission Secondary resource is the D2D resource for having distributed to the 4th terminal to receive D2D signal of communication；Third instruction be used to indicate this Two terminals monitor D2D signal of communication according to the Secondary resource；

Third responds receiving unit 202g, and for receiving the third response of second terminal return, third response is used for Indicate whether the signal strength for the D2D signal of communication that the second terminal is listened to according to the Secondary resource is less than predetermined strength threshold Value；

4th instruction sending unit 202h, if indicating that the second terminal is monitored according to the Secondary resource for third response The signal strength of the D2D signal of communication arrived is less than the predetermined strength threshold value, then sends the 4th to the 4th terminal and instruct, and the 4th Instruction is used to indicate the discovery signal of the 4th terminal monitoring first terminal transmission；

4th response receiving unit 202i, for receiving the 4th response of the 4th terminal return, the 4th response is used for Indicate the 4th terminal monitoring to the signal quality of the discovery signal whether be less than predetermined quality threshold value；

Second determination unit 202j, if the discovery that the 4th response the 4th terminal monitoring of instruction for receiving arrives The signal quality of signal is less than the predetermined quality threshold value, then the Secondary resource is determined as the recoverable resources.

When detecting second condition in the ban, then detecting first condition, base station can currently will have been divided by high-level signaling The D2D resource matched is sent to second terminal, and second terminal monitors D2D signal of communication according to the D2D resource that base station is sent, and according to Snoop results return to third response to base station, and base station is according to the third in response to determining that the D2D communication that second terminal receives accordingly The D2D resource that the signal strength of signal is less than predetermined strength threshold value is Secondary resource, and will distribute the Secondary resource to receive D2D The terminal of signal of communication is determined as the 4th terminal.Base station sends the 4th instruction to the 4th terminal, and the 4th terminal receives the instruction Afterwards, the discovery signal that first terminal is sent is monitored in scheduled resource, and returns to the 4th response to base station according to snoop results, The signal quality for the discovery signal in 4th terminal, listening to first terminal transmission is less than predetermined by base station according to the 4th response The corresponding resource to receive D2D signal of communication of the terminal of quality threshold is determined as recoverable resources.

4th response receiving unit 202i includes the second of the 4th response for receive the transmission of the 4th terminal Response frame, second response frame are the 4th terminal after receiving the 4th instruction, first sent according to the Secondary resource A D2D communication frame.

It wherein, can be by allocated, to send when being assigned the terminal of D2D resource to base station returning response The resource of D2D signal to base station returning response, for example, can by the response for returning to base station carry receive the first instruction or First OFDM (Orthogonal Frequency Division in first D2D communication frame that person the 4th sends after instructing Multiplexing, orthogonal frequency division multiplexing) in symbol.Base station receives after transmission first instructs or the 4th instructs according to First D2D communication frame that the allocated D2D resource is sent, and parse first OFDM symbol in the D2D communication frame received Number, to obtain the first response or the 4th response that each D2D terminal returns.

In addition, it should be noted that, second terminal returns to the second response to base station or used money when third responds It source can be by base station dynamic configuration.

The base station further include:

First detection module 206, for detecting after distributing target resource in the recoverable resources, which is No abundance；

Second detection module 207, if the testing result for the first detection module 206 is that the target resource is insufficient, It detects whether in the presence of idle D2D resource；

Secondary resource distribution module 208, if the testing result for second detection module 207 is in the presence of idle D2D Resource then distributes the target resource from the D2D resource of the free time.

Base station can be in conjunction with actual conditions, and distribution portion resource or whole resources are as mesh from idle D2D resource Mark resource.

When distributing D2D resource, base station, which can be considered, first distributes idle D2D resource, not idle D2D resource can When for distribution, the allocated D2D resource of multiplexing is considered further that；Alternatively, base station can first be multiplexed allocated D2D resource, do not having For multiplexing D2D resource when, idle D2D resource of reallocating.

For example, consider further that the idle D2D resource of distribution if base station first considers that multiplexing has distributed D2D resource, then base station is from can It is distributed after target resource in multiplexed resource, whether enough, if enough, do not reallocate idle if can detecte target resource Otherwise D2D resource further distributes target resource from idle D2D resource.

The base station further include:

Third detection module 209, for distributing target money from the recoverable resources in the first resource distribution module 203 Before source, detect whether in the presence of idle D2D resource；

Information resources distribution module 210, if the testing result for the third detection module 209 is in the presence of idle D2D Resource then distributes the target resource from the D2D resource of the free time；

Likewise, base station can be in conjunction with actual conditions, distribution portion resource or whole resources from idle D2D resource As target resource.

4th detection module 211, for detecting after distributing the target resource in the D2D resource of the free time, the target Whether resource is sufficient；

The first resource distribution module 203, if for the 4th detection module 211 testing result be the target resource not Foot then executes the step of should distributing target resource from the recoverable resources.

If base station first considers the idle D2D resource of distribution, consider further that the allocated D2D resource of multiplexing, then when base station from It is distributed before target resource in recoverable resources, first detects whether available free D2D resource, if so, then from idle D2D resource Middle distribution target resource, if the target resource is still insufficient, then further after distributing target resource in idle D2D resource Target resource is distributed from reusable resource.In addition, if the target resource distributed from idle D2D resource is enough, The step of then base station can be without subsequent determining recoverable resources reduces consumption to save system resource.

Alternatively, base station is when sending third to second terminal and instructing, it can be by allocated D2D resource and idle D2D Resource is all sent to second terminal, and second terminal monitors D2D signal of communication according to whole D2D resources, and ties according to monitoring Fruit returns to third response to base station, and it is pre- that base station determines that the signal strength for the D2D signal of communication that second terminal receives accordingly is less than Determine in the resource of intensity threshold, if there is idle resource, if so, target resource preferentially is distributed from idle resource, If the not inadequate resource of idle resource or free time, base station further executes the step that the 4th instruction is sent to the 4th terminal Suddenly.

Fig. 3 is referred to, it illustrates the equipment composition figures for the base station that further embodiment of this invention provides.The base station can be used In the terminal distribution D2D resource for request D2D communication.The base station may include: receiver 001, processor 002 and transmitter 003；

The receiver 001, for receive first terminal transmission for being asked with what second terminal established that end-to-end D2D communicates It asks；

The processor 002, for being determined in the allocated D2D resource by the first terminal and the second terminal The recoverable resources of multiplexing；

The processor 002, for distributing target resource from the recoverable resources；

The target resource is sent to the first terminal and second end for controlling the transmitter 003 by the processor 002 End sends D2D signal of communication according to the target resource by the first terminal, and is received by the second terminal according to the target resource D2D signal of communication.

Fig. 4 is referred to, it illustrates the equipment composition figures for the base station that yet another embodiment of the invention provides.The base station can be used The D2D resource that D2D signal of communication is sent to second terminal is distributed in the first terminal for request D2D communication.The base station can wrap It includes: receiver 004, processor 005 and transmitter 006；

The receiver 004, for receive first terminal transmission for being asked with what second terminal established that end-to-end D2D communicates It asks；

Specifically, supporting the terminal of D2D communication that can periodically send discovery signal on scheduled running time-frequency resource Discovery signal, when first terminal receive second terminal transmission discovery signal and detect can with the second terminal into When row D2D is communicated, the request that D2D communication is carried out with the second terminal can be sent to base station.

The processor 005, for being determined in the allocated D2D resource by the first terminal and the second terminal The recoverable resources of multiplexing；

Wherein, which is to be assigned to receive the hair that the first terminal that the terminal that D2D is communicated receives is sent The signal quality of existing signal is less than predetermined quality threshold value, and the signal strength of D2D signal of communication that second terminal receives accordingly Less than the resource of predetermined strength threshold value.The D2D resource can be running time-frequency resource.

And second terminal is in the interference for the signal that detection is received according to allocated D2D resource, need to detect is Total interference on a certain running time-frequency resource needs not distinguish between the interference from which D2D terminal, therefore it may only be necessary to detect root According to the signal strength for the signal of communication that allocated D2D resource receives.

The processor 005, for distributing target resource from the recoverable resources；

The target resource is sent to the first terminal and second end for controlling the transmitter 006 by the processor 005 End sends D2D signal of communication according to the target resource by the first terminal, and is received by the second terminal according to the target resource D2D signal of communication.

The processor 005 sends the first instruction to third terminal for controlling the transmitter 005, which is used for Indicate that the third terminal monitors the discovery signal of first terminal transmission；

The receiver 004, for receiving the first response of third terminal return, which is used to indicate the third Terminal monitoring to the signal quality of the discovery signal whether be less than predetermined quality threshold value；

The processor 005, if indicating the signal matter for the discovery signal that the third terminal listens to for first response Amount be less than the predetermined quality threshold value, then control the transmitter to the second terminal send include first resource second instruction, The first resource is the D2D resource for having distributed to the third terminal to receive D2D signal of communication, which is used to indicate The second terminal monitors D2D signal of communication according to the first resource；

The receiver 004, for receive the second terminal return second response, this second response be used to indicate this second Whether the signal strength for the D2D signal of communication that terminal is listened to according to the first resource is less than predetermined strength threshold value；

The processor 005, if second response received for the receiver 004 indicate the second terminal according to this The signal strength for the D2D signal of communication that one resource listens to is less than the predetermined strength threshold value, then the first resource is determined as this Recoverable resources.

It should be noted that in the response that D2D terminal or second terminal are returned to base station, will can directly listen to The signal quality of the discovery signal of the intensity or first terminal of D2D signal of communication is sent to base station, strong by base station detection signal Degree whether is less than predetermined strength threshold value or whether signal quality is less than predetermined quality threshold value；Alternatively, D2D terminal or second is eventually End can also first detect whether signal strength is less than predetermined strength threshold value or whether signal quality is less than predetermined quality threshold value, and It will test result carrying and be sent to base station in the response.

The receiver 004, for receive third terminal transmission include first response first response frame, this One response frame is the third terminal after receiving first instruction, the first D2D communication frame sent according to the first resource.

The processor 005 refers to for controlling the transmitter 006 to the third that second terminal transmission includes Secondary resource It enables, which is the D2D resource for having distributed to the 4th terminal to receive D2D signal of communication；The third is instructed for referring to Show that the second terminal monitors D2D signal of communication according to the Secondary resource；

The receiver 004, for receive the second terminal return third response, the third response be used to indicate this second Whether the signal strength for the D2D signal of communication that terminal is listened to according to the Secondary resource is less than predetermined strength threshold value；

The processor 005, if it is logical to respond the D2D for indicating that the second terminal is listened to according to the Secondary resource for the third Believe that the signal strength of signal is less than the predetermined strength threshold value, then controls the transmitter to the 4th terminal and send the 4th instruction, it should 4th instruction is used to indicate the discovery signal of the 4th terminal monitoring first terminal transmission；

The receiver 004, for receiving the 4th response of the 4th terminal return, the 4th response is used to indicate the 4th Terminal monitoring to the signal quality of the discovery signal whether be less than predetermined quality threshold value；

The processor 005, if arrived for the 4th response the 4th terminal monitoring of instruction that the receiver 004 receives The signal quality of the discovery signal is less than the predetermined quality threshold value, then the Secondary resource is determined as the recoverable resources.

The receiver 004, for receive the transmission of the 4th terminal include the 4th response the second response frame, this Two response frames are the 4th terminal after receiving the 4th instruction, the first D2D communication frame sent according to the Secondary resource.

The processor 005 is also used to detect after distributing target resource in the recoverable resources, and whether the target resource It is sufficient；

The processor 005 detects whether if being that the target resource is insufficient for testing result in the presence of idle D2D money Source；

The processor 005, if being to divide from the D2D resource of the free time in the presence of idle D2D resource for testing result With the target resource.

The processor 005, for detecting whether in the presence of the free time before distributing target resource in the recoverable resources D2D resource；

The processor 005, if being to divide from the D2D resource of the free time in the presence of idle D2D resource for testing result With the target resource；

The processor 005, for detecting after distributing the target resource in the D2D resource of the free time, the target resource It is whether sufficient；

The processor 005, if being that the target resource is insufficient for testing result, executing should distribute from the recoverable resources The step of target resource.

Fig. 5 is referred to, constitutes and schemes it illustrates the equipment of first terminal provided by one embodiment of the present invention.First end End can be used for being used for sending the D2D resource of D2D signal of communication to base station requests to second terminal.The first terminal can wrap It includes:

Request sending module 301, for sending to base station for establishing the request that end-to-end D2D is communicated with second terminal, The request is used to indicate the base station and is determined in the allocated D2D resource by the first terminal and second terminal multiplexing Recoverable resources, and distribute target resource from the recoverable resources；

First resource receiving module 302, for receiving the target resource of base station transmission；

Signal of communication sending module 303, for sending D2D signal of communication to the second terminal according to the target resource.

In conclusion first terminal provided in an embodiment of the present invention, logical by establishing D2D with second terminal to base station transmission The request of letter is distributed the resource that can be multiplexed by first terminal and second terminal, and root by base station from allocated D2D resource D2D signal of communication is sent according to the resource of base station distribution, is solved in the prior art when to establish D2D logical for request in base station range When the terminal quantity of letter is more, in fact it could happen that the problem of not idle D2D resource distributable situation, reach raising resource The purpose of utilization rate and power system capacity.

Refer to Fig. 6, it illustrates another embodiment of the present invention provides first terminal equipment constitute figure.First end End can be used for being used for sending the D2D resource of D2D signal of communication to base station requests to second terminal.The first terminal can wrap It includes:

Request sending module 401, for sending to base station for establishing the request that end-to-end D2D is communicated with second terminal, The request is used to indicate the base station and is determined in the allocated D2D resource by the first terminal and second terminal multiplexing Recoverable resources, and distribute target resource from the recoverable resources；

Support the terminal of D2D communication can be sent on scheduled running time-frequency resource to find signal Discovery signal, when the One terminal receive second terminal transmission discovery signal and detect can with the second terminal carry out D2D communication when, Ke Yixiang Base station sends the request that D2D communication is carried out with the second terminal.

Specifically, the recoverable resources need to satisfy two conditions:: first, be assigned the recoverable resources to receive The signal quality for the discovery signal that the first terminal that the terminal of D2D communication receives is sent is less than predetermined quality threshold value；The second, the The signal strength for the D2D signal of communication that two terminals are received according to the recoverable resources is less than predetermined strength threshold value.Wherein, meet First condition shows when first terminal sends D2D signal of communication to second terminal by the recoverable resources, to except second Other terminals for receiving D2D signal of communication using the recoverable resources except terminal will not have an impact；Meet second item Part shows that other terminals in addition to first terminal will not to second terminal using the D2D signal of communication that the recoverable resources is sent It has an impact.Wherein, base station determines retouching in the specific method of recoverable resources base station corresponding embodiment shown in Figure 2 It states, this embodiment is not repeated.

First resource receiving module 402, for receiving the target resource of base station transmission；

Signal of communication sending module 403, for sending D2D signal of communication to the second terminal according to the target resource.

The first terminal further include:

It was found that signal transmitting module 404, finds signal for periodicity sending.

Wherein, the previously known reference content of each terminal can be carried in the discovery signal that first terminal is sent, respectively After a D2D terminal receives discovery signal, discovery signal is parsed, and content and reference content that parsing is obtained carry out Comparison obtains parsing accuracy rate, and the signal for the discovery signal that the parsing accuracy rate is sent as the first terminal received The signal quality of quality, the subsequent discovery signal sent according to the first terminal assists base station to determine recoverable resources, specifically asks Description in base station corresponding embodiment shown in Figure 2, this embodiment is not repeated.

Fig. 7 is referred to, it illustrates the equipment composition figures for the first terminal that further embodiment of this invention provides.First end End can be used for being used for sending the D2D resource of D2D signal of communication to base station requests to second terminal.The first terminal can wrap It includes: processor 007, transmitter 008 and receiver 009；

The processor 007 is sent to base station for establishing end-to-end D2D with second terminal for controlling the transmitter 008 The request of communication, the request are used to indicate the base station and are determined in the allocated D2D resource by the first terminal and are somebody's turn to do The recoverable resources of second terminal multiplexing, and target resource is distributed from the recoverable resources；

The receiver 009, for receiving the target resource of base station transmission；

The processor 007 sends D2D communication to the second terminal according to the target resource for controlling the transmitter 008 Signal.

Fig. 8 is referred to, it illustrates the equipment composition figures for the first terminal that yet another embodiment of the invention provides.First end End can be used for being used for sending the D2D resource of D2D signal of communication to base station requests to second terminal.The first terminal can wrap It includes: processor 010, transmitter 011 and receiver 012；

The processor 010 is sent to base station for establishing end-to-end D2D with second terminal for controlling the transmitter 011 The request of communication, the request are used to indicate the base station and are determined in the allocated D2D resource by the first terminal and are somebody's turn to do The recoverable resources of second terminal multiplexing, and target resource is distributed from the recoverable resources；

Specifically, the recoverable resources need to satisfy two conditions:: first, be assigned the recoverable resources to receive The signal quality for the discovery signal that the first terminal that the terminal of D2D communication receives is sent is less than predetermined quality threshold value；The second, the The signal strength for the D2D signal of communication that two terminals are received according to the recoverable resources is less than predetermined strength threshold value.Wherein, meet First condition shows when first terminal sends D2D signal of communication to second terminal by the recoverable resources, to except second Other terminals for receiving D2D signal of communication using the recoverable resources except terminal will not have an impact；Meet second item Part shows that other terminals in addition to first terminal will not to second terminal using the D2D signal of communication that the recoverable resources is sent It has an impact.Wherein, base station determines retouching in the specific method of recoverable resources base station corresponding embodiment shown in Figure 4 It states, this embodiment is not repeated.

The receiver 012, for receiving the target resource of base station transmission；

The processor 010 sends D2D communication to the second terminal according to the target resource for controlling the transmitter 011 Signal.

The processor 010 is also used to control 011 periodicity sending of transmitter discovery signal.

Wherein, the previously known reference content of each terminal can be carried in the discovery signal that first terminal is sent, respectively After a D2D terminal receives discovery signal, discovery signal is parsed, and content and reference content that parsing is obtained carry out Comparison obtains parsing accuracy rate, and the signal for the discovery signal that the parsing accuracy rate is sent as the first terminal received The signal quality of quality, the subsequent discovery signal sent according to the first terminal assists base station to determine recoverable resources, specifically asks Description in base station corresponding embodiment shown in Figure 4, this embodiment is not repeated.

Fig. 9 is referred to, constitutes and schemes it illustrates the equipment of second terminal provided by one embodiment of the present invention.Second end End can be used for receiving the D2D signal of communication that first terminal is sent according to the D2D resource that base station is distributed.The second terminal can wrap It includes:

Secondary resource receiving module 501, for receiving the target resource of base station transmission, which is base station reception To first terminal send for after establishing the request that end-to-end D2D is communicated with the second terminal, in the allocated D2D resource In be determined to the recoverable resources being multiplexed by the first terminal and the second terminal, and the money distributed from the recoverable resources Source；

Signal of communication receiving module 502, for receiving the D2D communication letter of first terminal transmission according to the target resource Number.

In conclusion second terminal provided in an embodiment of the present invention, by receiving base station in the allocated D2D resource After being determined to the recoverable resources being multiplexed by the first terminal and the second terminal, the target distributed from recoverable resources is provided Source, and the D2D signal of communication that first base station is sent is received according to the target resource, it solves in the prior art when base station covers model Enclose interior request establish D2D communication terminal quantity it is more when, in fact it could happen that the not idle distributable situation of D2D resource Problem achievees the purpose that improve resource utilization and power system capacity.

Referring to Figure 10, it illustrates another embodiment of the present invention provides the equipment of second terminal constitute figure.This second Terminal can be used for receiving the D2D signal of communication that first terminal is sent according to the D2D resource that base station is distributed.The second terminal can be with Include:

Secondary resource receiving module 601, for receiving the target resource of base station transmission, which is base station reception To first terminal send for after establishing the request that end-to-end D2D is communicated with the second terminal, in the allocated D2D resource In be determined to the recoverable resources being multiplexed by the first terminal and the second terminal, and the money distributed from the recoverable resources Source；

Signal of communication receiving module 602, for receiving the D2D communication letter of first terminal transmission according to the target resource Number.

The second terminal further include:

Second command reception module 603, for receiving the target resource that base station is sent in the Secondary resource receiving module 601 Before, receive base station transmission includes the second instruction of first resource, which is to have distributed to third terminal use To receive the D2D resource of D2D signal of communication；

First monitors module 604, for monitoring D2D signal of communication according to the first resource；

5th detection module 605, for detecting the signal strength of the D2D signal of communication listened to according to the first resource, Obtain the first testing result；

Second response sending module 606, for sending the second response to the base station according to first testing result, this second Whether the signal strength that response is used to indicate the D2D signal of communication listened to according to the first resource is less than predetermined strength threshold value.

Wherein, the detection ordering of above-mentioned two condition can be configured according to the actual situation, and base station can first detect One condition, then detect second condition；Base station can also first detect second condition, then detect first condition.

The second terminal further include:

Third command reception module 607, for receiving the target resource that base station is sent in the Secondary resource receiving module 601 Before, receive base station transmission includes the third instruction of Secondary resource, which is to have distributed to the 4th terminal use To receive the resource of D2D signal of communication；

Second monitors module 608, for monitoring D2D signal of communication according to the Secondary resource；

6th detection module 609, for detecting the signal strength of the D2D signal of communication listened to according to the Secondary resource, Obtain the second testing result；

Third responds sending module 610, for sending third response, the third to the base station according to second testing result Whether the signal strength that response is used to indicate the D2D signal of communication listened to according to the Secondary resource is less than predetermined strength threshold value.

When detecting second condition in the ban, then detecting first condition, base station can currently will have been divided by high-level signaling The 4th terminal of dispensing is sent to second terminal, second terminal root as Secondary resource to receive the D2D resource of D2D signal of communication D2D signal of communication is monitored according to the Secondary resource that base station is sent, and returns to third response to base station according to snoop results, when base station root According to the third in response to determining that the signal strength for the D2D signal of communication that second terminal is received according to Secondary resource is less than predetermined strength When threshold value, the 4th instruction is sent to the 4th terminal, after the 4th terminal receives the instruction, first is monitored in scheduled resource eventually The discovery signal sent is held, and returns to the 4th response to base station according to snoop results, when the 4th response the 4th terminal monitoring of instruction When the signal quality of the discovery signal sent to first terminal is less than predetermined quality threshold value, Secondary resource is determined as can be by the The recoverable resources of one terminal and second terminal multiplexing.

It should be noted that in the response that second terminal is returned to base station, the D2D signal of communication that will can directly listen to Intensity be sent to base station, by base station detection signal strength whether be less than predetermined strength threshold value；Alternatively, second terminal can also be first Whether detection signal strength is less than predetermined strength threshold value, and will test result carrying and be sent to base station in the response.In addition, second Used resource can be by base station dynamic configuration when returning to the second response or third response to base station for terminal.

Referring to Figure 11, the equipment of the second terminal provided it illustrates further embodiment of this invention constitutes figure.This second Terminal can be used for receiving the D2D signal of communication that first terminal is sent according to the D2D resource that base station is distributed.The second terminal can be with It include: receiver 013 and processor 014；

The receiver 013, for receiving the target resource of base station transmission, which is that the base station receives first eventually After what end was sent is used to establish the request that end-to-end D2D is communicated with the second terminal, energy is determined in the allocated D2D resource Enough recoverable resources being multiplexed by the first terminal and the second terminal, and the resource distributed from the recoverable resources；

The processor 014 receives the D2D that the first terminal is sent according to the target resource for controlling the receiver 013 Signal of communication.

Referring to Figure 12, the equipment of the second terminal provided it illustrates yet another embodiment of the invention constitutes figure.This second Terminal can be used for receiving the D2D signal of communication that first terminal is sent according to the D2D resource that base station is distributed.The second terminal can be with It include: receiver 015 and processor 016；

The receiver 015, for receiving the target resource of base station transmission, which is that the base station receives first eventually After what end was sent is used to establish the request that end-to-end D2D is communicated with the second terminal, energy is determined in the allocated D2D resource Enough recoverable resources being multiplexed by the first terminal and the second terminal, and the resource distributed from the recoverable resources；

The processor 016 receives the D2D that the first terminal is sent according to the target resource for controlling the receiver 015 Signal of communication.

The second terminal further include: transmitter 017；

The receiver 015 is also used to before receiving the target resource that base station is sent, and receive base station transmission includes Second instruction of first resource, which is the D2D resource for having distributed to third terminal to receive D2D signal of communication；

The processor 016 monitors D2D signal of communication according to the first resource for controlling the receiver 015；

The processor 016 is obtained for detecting the signal strength of the D2D signal of communication listened to according to the first resource First testing result；

The processor 016 sends the second sound to the base station according to first testing result for controlling the transmitter 017 It answers, it is predetermined whether the signal strength which is used to indicate the D2D signal of communication listened to according to the first resource is less than Intensity threshold.

The receiver 015 includes for before receiving the target resource that base station is sent, receive base station transmission The third of two resources instructs, which is to have distributed to resource of the 4th terminal to receive D2D signal of communication；

The processor 016 monitors D2D signal of communication according to the Secondary resource for controlling the receiver 015；

The processor 016 is obtained for detecting the signal strength of the D2D signal of communication listened to according to the Secondary resource Second testing result；

The processor 016 sends third sound to the base station according to second testing result for controlling the transmitter 017 It answers, it is predetermined whether the signal strength that third response is used to indicate the D2D signal of communication listened to according to the Secondary resource is less than Intensity threshold.

Referring to Figure 13, it constitutes and schemes it illustrates the equipment of third terminal provided by one embodiment of the present invention, the third Terminal is the terminal of base station the allocated D2D resource progress D2D communication, which can be used for receiving first in base station After what terminal was sent establishes the request that D2D is communicated with second terminal, base station is assisted to determine reusable in allocated D2D resource Resource.The third terminal may include:

First command reception module 701, for receiving the first instruction of base station transmission, which is that the base station is connecing Receive the instruction for sending after establishing the request that D2D is communicated with second terminal of first terminal transmission；

Third monitors module 702, for monitoring the discovery signal of first terminal transmission；

7th detection module 703 monitors the signal matter for the discovery signal that module 702 listens to for detecting the third Amount obtains third testing result；

First response sending module 704, for sending the first response to the base station according to the third testing result；By the base It stands when the signal quality for the discovery signal that the first response instruction listens to is less than predetermined quality threshold value, to the second terminal Transmission includes the second instruction of first resource, and receives the second response of second terminal return, and refers in second response It, will when showing that the signal strength for the D2D signal of communication that the second terminal is listened to according to the first resource is less than predetermined strength threshold value The first resource is determined as recoverable resources, target resource is distributed from the recoverable resources, and the target resource is sent to The first terminal and the second terminal send D2D signal of communication according to the target resource by the first terminal, and by second end End receives D2D signal of communication according to the target resource；

Wherein, which is the D2D resource for having distributed to the third terminal to receive D2D signal of communication, this Two instructions are used to indicate the second terminal and monitor D2D signal of communication according to the first resource；Second response be used to indicate this Whether the signal strength for the D2D signal of communication that two terminals are listened to according to the first resource is less than the predetermined strength threshold value.

In conclusion third terminal provided in an embodiment of the present invention, by after receiving the first instruction of base station transmission The discovery signal that first terminal is sent is monitored, and returns to the first response to base station according to snoop results, by base station in first sound It should indicate that the signal quality of the discovery signal for the first terminal that third terminal receives is less than after predetermined quality threshold value to second eventually End sends the second instruction, and indicates the second terminal according to third terminal to connect in the second response returned according to second terminal When the signal strength for the D2D signal of communication that the first resource of receipts D2D signal of communication listens to is less than predetermined strength threshold value, by first Resource is determined as recoverable resources, solve in the prior art when in base station range request establish D2D communication number of terminals When measuring more, in fact it could happen that the problem of not idle D2D resource distributable situation, reach and improve resource utilization and be The purpose of system capacity.

Referring to Figure 14, it illustrates another embodiment of the present invention provides the equipment of third terminal constitute figure, the third Terminal is the terminal of base station the allocated D2D resource progress D2D communication, which can be used for receiving first in base station After what terminal was sent establishes the request that D2D is communicated with second terminal, base station is assisted to determine reusable in allocated D2D resource Resource.The third terminal may include:

First command reception module 801, for receiving the first instruction of base station transmission, which is that the base station is connecing Receive the instruction for sending after establishing the request that D2D is communicated with second terminal of first terminal transmission；

Third monitors module 802, for monitoring the discovery signal of first terminal transmission；

Specifically, supporting the terminal of D2D communication that can periodically send discovery signal on scheduled running time-frequency resource Discovery signal, when first terminal receive second terminal transmission discovery signal and detect can with the second terminal into When row D2D is communicated, the request that D2D communication is carried out with the second terminal can be sent to base station.Third terminal receives base station hair After the first instruction sent, the discovery signal of first terminal periodicity sending can be monitored.

7th detection module 803 monitors the signal matter for the discovery signal that module 802 listens to for detecting the third Amount obtains third testing result；

The previously known reference content of each terminal, third terminal can be carried in the discovery signal that first terminal is sent After receiving discovery signal, discovery signal is parsed, and the content that parsing obtains is compared with reference content, obtained Parse accuracy rate, and the signal quality for the discovery signal that the parsing accuracy rate is sent as the first terminal received.

First response sending module 804, for sending the first response to the base station according to the third testing result；By the base It stands when the signal quality for the discovery signal that the first response instruction listens to is less than predetermined quality threshold value, to the second terminal Transmission includes the second instruction of first resource, and receives the second response of second terminal return, and refers in second response It, will when showing that the signal strength for the D2D signal of communication that the second terminal is listened to according to the first resource is less than predetermined strength threshold value The first resource is determined as recoverable resources, target resource is distributed from the recoverable resources, and the target resource is sent to The first terminal and the second terminal send D2D signal of communication according to the target resource by the first terminal, and by second end End receives D2D signal of communication according to the target resource；

Base station can send first to each terminal for being assigned the progress D2D communication of D2D resource by high-level signaling Instruction, the discovery monitoring first terminal and sending after each D2D terminal receives first instruction, on scheduled running time-frequency resource Signal Discovery signal, and the first response is returned to base station according to the discovery signal listened to, base station is according to first response Judge that the signal quality for the discovery signal that the first terminal which terminal monitoring arrives is sent is less than predetermined quality threshold value, and will distribution It is determined to the D2D resource for the terminal that the signal quality for the discovery signal that the first terminal listened to is sent is less than predetermined quality threshold value For first resource.Base station to second terminal send include the first resource second instruction, second terminal receive this second After instruction, the D2D signal of communication that other terminals are sent by the Secondary resource is monitored according to the Secondary resource, and tie according to monitoring Fruit returns to the second response to base station, and base station is according to this second in response to determining that D2D signal of communication that second terminal listens to accordingly The resource that signal strength is less than predetermined signal strength threshold value is recoverable resources.

The first response sending module 804 includes first first response frame responded for sending to the base station, should First response frame is after receiving first instruction, according to first D2D communication frame of first resource transmission.

It wherein, can be by allocated, to send when being assigned the terminal of D2D resource to base station returning response The resource of D2D signal is to base station returning response, for example, the response for returning to base station can be carried after receiving the first instruction In first OFDM symbol in first D2D communication frame sent.Base station receives basis and has divided after the instruction of transmission first First D2D communication frame that the D2D resource matched is sent, and first OFDM symbol in the D2D communication frame received is parsed, with Obtain the first response that each D2D terminal returns.

It should be noted that in the response that third terminal is returned to base station, it can be directly by the first terminal listened to It was found that the signal quality of signal is sent to base station, whether predetermined quality threshold value is less than by base station detection signal quality；Alternatively, third Terminal can also first detect whether signal quality is less than predetermined quality threshold value, and will test result carrying and be sent to base in the response It stands.

Referring to Figure 15, the equipment of the third terminal provided it illustrates further embodiment of this invention constitutes figure, the third Terminal is the terminal of base station the allocated D2D resource progress D2D communication, which can be used for receiving first in base station After what terminal was sent establishes the request that D2D is communicated with second terminal, base station is assisted to determine reusable in allocated D2D resource Resource.The third terminal may include: receiver 018, processor 019 and transmitter 020；

The receiver 018, for receiving the first instruction of base station transmission, which is that the base station is receiving first The instruction for being sent after establishing the request that D2D is communicated with second terminal that terminal is sent；

The processor 019 monitors the discovery signal that the first terminal is sent for controlling the receiver 018；

The processor 019 obtains third testing result for the signal quality for the discovery signal that Anti-Sniffer arrives；

The processor 019 sends the first sound to the base station according to the third testing result for controlling the transmitter 020 It answers；By the base station when the signal quality for the discovery signal that the first response instruction listens to is less than predetermined quality threshold value, to Second terminal transmission includes the second instruction of first resource, and receives the second response of second terminal return, and at this Second response indicates that the signal strength for the D2D signal of communication that the second terminal is listened to according to the first resource is less than predetermined strength When threshold value, which is determined as recoverable resources, target resource is distributed from the recoverable resources, and the target is provided Source is sent to the first terminal and the second terminal, by the first terminal according to target resource transmission D2D signal of communication, and by The second terminal receives D2D signal of communication according to the target resource；

Referring to Figure 16, the equipment of the third terminal provided it illustrates yet another embodiment of the invention constitutes figure, the third Terminal is the terminal of base station the allocated D2D resource progress D2D communication, which can be used for receiving first in base station After what terminal was sent establishes the request that D2D is communicated with second terminal, base station is assisted to determine reusable in allocated D2D resource Resource.The third terminal may include: receiver 021, processor 022 and transmitter 023；

The receiver 021, for receiving the first instruction of base station transmission, which is that the base station is receiving first The instruction for being sent after establishing the request that D2D is communicated with second terminal that terminal is sent；

The processor 022 monitors the discovery signal that the first terminal is sent for controlling the receiver 021；

The processor 022 obtains third testing result for the signal quality for the discovery signal that Anti-Sniffer arrives；

The processor 022 sends the first sound to the base station according to the third testing result for controlling the transmitter 023 It answers；By the base station when the signal quality for the discovery signal that the first response instruction listens to is less than predetermined quality threshold value, to Second terminal transmission includes the second instruction of first resource, and receives the second response of second terminal return, and at this Second response indicates that the signal strength for the D2D signal of communication that the second terminal is listened to according to the first resource is less than predetermined strength When threshold value, which is determined as recoverable resources, target resource is distributed from the recoverable resources, and the target is provided Source is sent to the first terminal and the second terminal, by the first terminal according to target resource transmission D2D signal of communication, and by The second terminal receives D2D signal of communication according to the target resource；

The processor 022 includes first first response responded for controlling the transmitter 023 to send to the base station Frame, first response frame are after receiving first instruction, according to first D2D communication frame of first resource transmission.

Referring to Figure 17, it constitutes and schemes it illustrates the equipment of the 4th terminal provided by one embodiment of the present invention, the 4th Terminal is the terminal of base station the allocated D2D resource progress D2D communication, and the 4th terminal can be used for receiving first in base station After what terminal was sent establishes the request that D2D is communicated with second terminal, base station is assisted to determine reusable in allocated D2D resource Resource.4th terminal may include:

4th command reception module 901, for receiving the 4th instruction of base station transmission；4th instruction is that the base station is connecing Receive first terminal transmission for second terminal establishing the request that D2D communicate, sending to the second terminal includes second The third of resource instructs, and receives the third response of second terminal return, and the third respond indicate the second terminal according to The signal strength for the D2D signal of communication that the Secondary resource listens to is less than the instruction sent when predetermined strength threshold value；Second money Source is to have distributed to resource of the 4th terminal to receive D2D signal of communication, and third instruction is used to indicate the second terminal D2D signal of communication is monitored according to the Secondary resource, third response is used to indicate the second terminal and monitors according to the Secondary resource To the signal strength of D2D signal of communication whether be less than the predetermined strength threshold value；

4th monitors module 902, for monitoring the discovery signal of first terminal transmission；

8th detection module 903 obtains the 4th detection knot for the signal quality for the discovery signal that Anti-Sniffer arrives Fruit；

4th response sending module 904, for sending the 4th response to the base station according to the 4th testing result；4th Whether the signal quality that response is used to indicate the discovery signal listened to is less than predetermined quality threshold value；By the base station the 4th When the signal quality for the discovery signal that response instruction listens to is less than the predetermined quality threshold value, which is determined as can Multiplexed resource, distributes target resource from the recoverable resources, and by the target resource be sent to the first terminal and this second Terminal sends D2D signal of communication according to the target resource by the first terminal, and is connect by the second terminal according to the target resource Receive D2D signal of communication.

In conclusion the 4th terminal provided in an embodiment of the present invention, is including to second terminal transmission by receiving base station There is the third of Secondary resource to instruct, and the third response instruction second terminal that second terminal returns based on the received is according to the second money After the signal strength for the D2D signal of communication that source listens to is less than the 4th instruction sent when predetermined strength threshold value, Anti-Sniffer is arrived First terminal send discovery signal signal quality, and according to testing result to base station return the 4th response, existed by base station The signal quality for the discovery signal that the first terminal that 4th response the 4th terminal monitoring of instruction arrives is sent is less than predetermined quality threshold value When, Secondary resource is determined as recoverable resources, solve in the prior art when in base station range request establish D2D communication Terminal quantity it is more when, in fact it could happen that the problem of not idle D2D resource distributable situation, reach and improve resource benefit With the purpose of rate and power system capacity.

Referring to Figure 18, it illustrates another embodiment of the present invention provides the equipment of the 4th terminal constitute figure, the 4th Terminal is the terminal of base station the allocated D2D resource progress D2D communication, and the 4th terminal can be used for receiving first in base station After what terminal was sent establishes the request that D2D is communicated with second terminal, base station is assisted to determine reusable in allocated D2D resource Resource.4th terminal may include:

4th command reception module 1001, for receiving the 4th instruction of base station transmission；4th instruction is that the base station exists Receive first terminal transmission for second terminal establishing the request that D2D communicate, sending to the second terminal includes the The third of two resources instructs, and receives the third response of second terminal return, and responds in the third and indicate the second terminal root The signal strength of the D2D signal of communication listened to according to the Secondary resource is less than the instruction sent when predetermined strength threshold value；This second Resource is to have distributed to resource of the 4th terminal to receive D2D signal of communication, and third instruction is used to indicate second end D2D signal of communication is monitored according to the Secondary resource in end, and third response is used to indicate the second terminal and is supervised according to the Secondary resource Whether the signal strength for the D2D signal of communication heard is less than the predetermined strength threshold value；

4th monitors module 1002, for monitoring the discovery signal of first terminal transmission；

8th detection module 1003 obtains the 4th detection knot for the signal quality for the discovery signal that Anti-Sniffer arrives Fruit；

Discovery signal that 4th terminal monitoring first terminal is sent and detect discovery signal signal quality method and the Three terminals are similar, and details are not described herein again.

4th response sending module 1004, for sending the 4th response to the base station according to the 4th testing result；This Whether the signal quality that four responses are used to indicate the discovery signal listened to is less than predetermined quality threshold value；By the base station this When the signal quality for the discovery signal that four response instructions listen to is less than the predetermined quality threshold value, which is determined as Recoverable resources, distributes target resource from the recoverable resources, and by the target resource be sent to the first terminal and this Two terminals send D2D signal of communication according to the target resource by the first terminal, and by the second terminal according to the target resource Receive D2D signal of communication.

Base station can give the 4th terminal to provide to receive the D2D of D2D signal of communication by high-level signaling by currently allocated Source is sent to second terminal as Secondary resource, and second terminal monitors D2D signal of communication according to the Secondary resource that base station is sent, and According to snoop results to base station return third response, when base station according to the third in response to determining that second terminal connects according to Secondary resource When the signal strength of the D2D signal of communication received is less than predetermined strength threshold value, the 4th instruction, the 4th terminal are sent to the 4th terminal After receiving the instruction, the discovery signal that first terminal is sent is monitored in scheduled resource, and according to snoop results to base station The 4th response is returned to, when the signal quality for the discovery signal that the 4th response the 4th terminal monitoring of instruction to first terminal is sent is less than When predetermined quality threshold value, Secondary resource is determined as to the recoverable resources that can be multiplexed by first terminal and second terminal.

4th response sending module 1004 includes the 4th the second response frame responded for sending to the base station, Second response frame is should be after receiving the 4th instruction, according to first D2D communication frame of Secondary resource transmission.

It wherein, can be by allocated, to send when being assigned the terminal of D2D resource to base station returning response The resource of D2D signal is to base station returning response, for example, the response for returning to base station can be carried after receiving the 4th instruction In first OFDM symbol in first D2D communication frame sent.Base station receives basis and has divided after sending the 4th instruction First D2D communication frame that the D2D resource matched is sent, and first OFDM symbol in the D2D communication frame received is parsed, with Obtain the 4th response that each D2D terminal returns.

It should be noted that in the response that the 4th terminal is returned to base station, it can be directly by the first terminal listened to It was found that the signal quality of signal is sent to base station, whether predetermined quality threshold value is less than by base station detection signal quality；Alternatively, the 4th Terminal can also first detect whether signal quality is less than predetermined quality threshold value, and will test result carrying and be sent to base in the response It stands.

Referring to Figure 19, the equipment of the 4th terminal provided it illustrates further embodiment of this invention constitutes figure, and the 4th Terminal is the terminal of base station the allocated D2D resource progress D2D communication, and the 4th terminal can be used for receiving first in base station After what terminal was sent establishes the request that D2D is communicated with second terminal, base station is assisted to determine reusable in allocated D2D resource Resource.4th terminal may include: receiver 024, processor 025 and transmitter 026；

The receiver 024, for receiving the 4th instruction of base station transmission；4th instruction is that the base station is receiving first Terminal send for second terminal establishing the request that D2D communicate, include the of Secondary resource to second terminal transmission Three instructions receive the third response of second terminal return, and respond in the third and indicate the second terminal according to second money The signal strength for the D2D signal of communication that source listens to is less than the instruction sent when predetermined strength threshold value；The Secondary resource is to have divided Resource of the 4th terminal of dispensing to receive D2D signal of communication, third instruction be used to indicate the second terminal according to this Two resources monitor D2D signal of communication, and it is logical that third response is used to indicate the D2D that the second terminal is listened to according to the Secondary resource Whether the signal strength of letter signal is less than the predetermined strength threshold value；

The processor 025 monitors the discovery signal that the first terminal is sent for controlling the receiver 024；

The processor 025 obtains the 4th testing result for the signal quality for the discovery signal that Anti-Sniffer arrives；

The processor 025 sends the 4th sound to the base station according to the 4th testing result for controlling the transmitter 026 It answers；Whether the signal quality that the 4th response is used to indicate the discovery signal listened to is less than predetermined quality threshold value；By the base It stands when the signal quality of the discovery signal that the 4th response instruction listens to is less than the predetermined quality threshold value, this second is provided Source is determined as recoverable resources, target resource is distributed from the recoverable resources, and the target resource is sent to first end End and the second terminal send D2D signal of communication according to the target resource by the first terminal, and by the second terminal according to this Target resource receives D2D signal of communication.

Figure 20 is referred to, constitutes and schemes it illustrates the equipment of the 4th terminal of yet another embodiment of the invention offer, the 4th Terminal is the terminal of base station the allocated D2D resource progress D2D communication, and the 4th terminal can be used for receiving first in base station After what terminal was sent establishes the request that D2D is communicated with second terminal, base station is assisted to determine reusable in allocated D2D resource Resource.4th terminal may include: receiver 027, processor 028 and transmitter 029；

The receiver 027, for receiving the 4th instruction of base station transmission；4th instruction is that the base station is receiving first Terminal send for second terminal establishing the request that D2D communicate, include the of Secondary resource to second terminal transmission Three instructions receive the third response of second terminal return, and respond in the third and indicate the second terminal according to second money The signal strength for the D2D signal of communication that source listens to is less than the instruction sent when predetermined strength threshold value；The Secondary resource is to have divided Resource of the 4th terminal of dispensing to receive D2D signal of communication, third instruction be used to indicate the second terminal according to this Two resources monitor D2D signal of communication, and it is logical that third response is used to indicate the D2D that the second terminal is listened to according to the Secondary resource Whether the signal strength of letter signal is less than the predetermined strength threshold value；

The processor 028 monitors the discovery signal that the first terminal is sent for controlling the receiver 027；

The processor 028 obtains the 4th testing result for the signal quality for the discovery signal that Anti-Sniffer arrives；

The processor 028 sends the 4th sound to the base station according to the 4th testing result for controlling the transmitter 029 It answers；Whether the signal quality that the 4th response is used to indicate the discovery signal listened to is less than predetermined quality threshold value；By the base It stands when the signal quality of the discovery signal that the 4th response instruction listens to is less than the predetermined quality threshold value, this second is provided Source is determined as recoverable resources, target resource is distributed from the recoverable resources, and the target resource is sent to first end End and the second terminal send D2D signal of communication according to the target resource by the first terminal, and by the second terminal according to this Target resource receives D2D signal of communication.

The processor 028 includes the 4th the second response responded for controlling the transmitter 029 to send to the base station Frame, which is should be after receiving the 4th instruction, according to first D2D communication frame of Secondary resource transmission.

Figure 21 is referred to, it illustrates the method flow diagrams of resource allocation methods provided by one embodiment of the present invention.It should Method can be used for shown in any as shown in Figure 1 to Figure 4 in base station, for the terminal distribution D2D resource of request D2D communication.The money Source distribution method may include:

Step 1101, what reception first terminal was sent is used to establish the request that end-to-end D2D is communicated with second terminal；

Step 1102, it is determined in the allocated D2D resource by the first terminal and second terminal multiplexing Recoverable resources；

Wherein, which is to be assigned the resource to receive the first terminal hair that the terminal of D2D communication receives The signal quality of the discovery signal sent is less than predetermined quality threshold value, and the letter of D2D signal of communication that second terminal receives accordingly Number intensity is less than the resource of predetermined strength threshold value.The D2D resource can be running time-frequency resource.

Step 1103, target resource is distributed from the recoverable resources；

Step 1104, which is sent to the first terminal and the second terminal, by the first terminal according to this Target resource sends D2D signal of communication, and receives D2D signal of communication according to the target resource by the second terminal.

In conclusion resource allocation methods provided in an embodiment of the present invention, by receiving first terminal transmission, with After second terminal establishes the request of end-to-end D2D communication, first terminal and second terminal are determined in the allocated D2D resource Reusable resource, and target resource is distributed from recoverable resources solves in the prior art when asking in base station range When asking the terminal quantity for establishing D2D communication more, in fact it could happen that the problem of not idle D2D resource distributable situation, Achieve the purpose that improve resource utilization and power system capacity.

Refer to Figure 22, it illustrates another embodiment of the present invention provides resource allocation methods method flow diagram.It should Method can be used for shown in any as shown in Figure 1 to Figure 4 in base station, and the first terminal for request D2D communication is distributed to second eventually End sends the D2D resource of D2D signal of communication.The resource allocation methods may include:

Step 1201, what reception first terminal was sent is used to establish the request that end-to-end D2D is communicated with second terminal；

Step 1202, it is determined in the allocated D2D resource by the first terminal and second terminal multiplexing Recoverable resources；

It wherein, can be by allocated, to send when being assigned the terminal of D2D resource to base station returning response The resource of D2D signal to base station returning response, for example, can by the response for returning to base station carry receive the first instruction or In first OFDM symbol in first D2D communication frame that person the 4th sends after instructing.Base station transmission first instruct or After 4th instruction, the first D2D communication frame sent according to the allocated D2D resource is received, and it is logical to parse the D2D received First OFDM symbol in frame is believed, to obtain the first response or the 4th response that each D2D terminal returns.

Step 1203, target resource is distributed from the recoverable resources；

Step 1204, whether detection target resource is sufficient；If so, entering step 1207, otherwise, 1205 are entered step；

Step 1205, it detects whether in the presence of idle D2D resource；If so, entering step 1206, otherwise, enter step 1207；

Step 1206, target resource is distributed from idle D2D resource；

When distributing D2D resource, base station, which can be considered, is first multiplexed allocated D2D resource, not for the D2D of multiplexing When resource, idle D2D resource of reallocating.

For example, whether enough base station after distribution target resource in recoverable resources, can detecte target resource, if reaching With otherwise idle D2D resource of not reallocating then further distributes target resource from idle D2D resource.

Step 1207, which is sent to the first terminal and the second terminal, by the first terminal according to this Target resource sends D2D signal of communication, and receives D2D signal of communication according to the target resource by the second terminal.

Figure 23 is referred to, it illustrates the method flow diagrams for the resource allocation methods that further embodiment of this invention provides.It should Method can be used for shown in any as shown in Figure 1 to Figure 4 in base station, and the first terminal for request D2D communication is distributed to second eventually End sends the D2D resource of D2D signal of communication.The resource allocation methods may include:

Step 1301, what reception first terminal was sent is used to establish the request that end-to-end D2D is communicated with second terminal；

Step 1302, it detects whether in the presence of idle D2D resource；If so, entering step 1303, otherwise, enter step 1305；

Step 1303, target resource is distributed from idle D2D resource；

Step 1304, whether detection target resource is sufficient；If so, entering step 1307, otherwise, 1305 are entered step；

Step 1305, it is determined in the allocated D2D resource by the first terminal and second terminal multiplexing Recoverable resources；

Step 1306, target resource is distributed from the recoverable resources；

When distributing D2D resource, base station, which can be considered, first distributes idle D2D resource, not idle D2D resource can When for distribution, the allocated D2D resource of multiplexing is considered further that

Base station can first detect whether available free D2D resource, if so, the then distribution target money from idle D2D resource Source then further determines that reusable provides if the target resource is still insufficient after distributing target resource in idle D2D resource Source, and target resource is distributed from reusable resource.In addition, if the target resource distributed from idle D2D resource Enough, then the step of base station can be without subsequent determining recoverable resources reduces consumption to save system resource.

In addition, base station is when sending third to second terminal and instructing, it can be by allocated D2D resource and idle D2D Resource is all sent to second terminal, and second terminal monitors D2D signal of communication according to whole D2D resources, and ties according to monitoring Fruit returns to third response to base station, and it is pre- that base station determines that the signal strength for the D2D signal of communication that second terminal receives accordingly is less than Determine in the resource of intensity threshold, if there is idle resource, if so, target resource preferentially is distributed from idle resource, If the not inadequate resource of idle resource or free time, base station further executes the step that the 4th instruction is sent to the 4th terminal Suddenly.

Step 1307, which is sent to the first terminal and the second terminal, by the first terminal according to this Target resource sends D2D signal of communication, and receives D2D signal of communication according to the target resource by the second terminal.

Figure 24 is referred to, it illustrates the method flow diagrams of resource allocation methods provided by one embodiment of the present invention.It should Method can be used in the first terminal shown in as any such as Fig. 5 to Fig. 8, be used to send D2D to second terminal to base station requests The D2D resource of signal of communication.The resource allocation methods may include:

Step 1401, it sends to base station for establishing the request that end-to-end D2D is communicated with second terminal, the request is for referring to Show that the base station is determined to the reusable money being multiplexed by the first terminal and the second terminal in the allocated D2D resource Source, and target resource is distributed from the recoverable resources；

Step 1402, the target resource of base station transmission is received；

Step 1403, D2D signal of communication is sent to the second terminal according to the target resource.

In conclusion resource allocation methods provided in an embodiment of the present invention, are established by sending to base station with second terminal The request of D2D communication is distributed the money that can be multiplexed by first terminal and second terminal by base station from allocated D2D resource Source, and according to base station distribution resource send D2D signal of communication, solve in the prior art when in base station range request build When the terminal quantity of vertical D2D communication is more, in fact it could happen that not the problem of idle D2D resource distributable situation, reach Improve the purpose of resource utilization and power system capacity.

Refer to Figure 25, it illustrates another embodiment of the present invention provides resource allocation methods method flow diagram.It should Method can be used in the first terminal shown in as any such as Fig. 5 to Fig. 8, be used to send D2D to second terminal to base station requests The D2D resource of signal of communication.The resource allocation methods may include:

Step 1501, periodicity sending finds signal；

Support the terminal of D2D communication that can periodically send discovery signal Discovery on scheduled running time-frequency resource Signal.

Step 1502, it sends to base station for establishing the request that end-to-end D2D is communicated with second terminal；

The request be used to indicate the base station be determined in the allocated D2D resource by the first terminal and this second The recoverable resources of terminal multiplexing, and target resource is distributed from the recoverable resources.

It can lead to second terminal progress D2D when first terminal receives the discovery signal of second terminal transmission and detects When letter, the request that D2D communication is carried out with the second terminal can be sent to base station.

It should be noted that the previously known reference of each terminal can be carried in the discovery signal that first terminal is sent Content, after each D2D terminal receives discovery signal, content and reference that discovery signal is parsed, and parsing is obtained Content compares, and obtains parsing accuracy rate, and the discovery that the parsing accuracy rate is sent as the first terminal received is believed Number signal quality, it is subsequent according to the first terminal send discovery signal signal quality assist base station determine reusable money Source, the specifically description in base station corresponding embodiment shown in Figure 2, this embodiment is not repeated.

Step 1503, the target resource of base station transmission is received；

Step 1504, D2D signal of communication is sent to the second terminal according to the target resource.

Figure 26 is referred to, it illustrates the method flow diagrams of resource allocation methods provided by one embodiment of the present invention.It should Method can be used in the second terminal shown in as any such as Fig. 9 to Figure 12, receive first eventually according to the D2D resource of base station distribution Hold the D2D signal of communication sent.The resource allocation methods may include:

Step 1601, the target resource that base station is sent is received, which is that the base station receives first terminal transmission For being determined in the allocated D2D resource by this after establishing the request that end-to-end D2D is communicated with the second terminal The recoverable resources of first terminal and second terminal multiplexing, and the resource distributed from the recoverable resources；

Step 1602, the D2D signal of communication of first terminal transmission is received according to the target resource.

In conclusion resource allocation methods provided in an embodiment of the present invention, are provided by receiving base station in the allocated D2D The mesh after the first terminal and the recoverable resources of second terminal multiplexing, distributed from recoverable resources is determined in source Resource is marked, and the D2D signal of communication that first base station is sent is received according to the target resource, is solved in the prior art when base station is covered When requesting the terminal quantity for establishing D2D communication more within the scope of lid, in fact it could happen that the not idle distributable feelings of D2D resource The problem of shape, achievees the purpose that improve resource utilization and power system capacity.

Refer to Figure 27, it illustrates another embodiment of the present invention provides resource allocation methods method flow diagram.It should Method can be used in the second terminal shown in as any such as Fig. 9 to Figure 12, receive first eventually according to the D2D resource of base station distribution Hold the D2D signal of communication sent.The resource allocation methods may include:

Step 1701, receive base station transmission includes the second instruction of first resource；

The first resource is the D2D resource for having distributed to third terminal to receive D2D signal of communication.

Wherein, base station can be sent by high-level signaling to each terminal for being assigned the progress D2D communication of D2D resource First instruction after each D2D terminal receives first instruction, monitors what first terminal was sent on scheduled running time-frequency resource It was found that signal Discovery signal, and the first response is returned to base station according to the discovery signal listened to, base station according to this first Response judges that the signal quality for the discovery signal that the first terminal which terminal monitoring arrives is sent is less than predetermined quality threshold value, and will Distribute to the D2D resource that the signal quality for finding signal that the first terminal listened to is sent is less than the terminal of predetermined quality threshold value It is determined as first resource.

Step 1702, D2D signal of communication is monitored according to the first resource, and detects and is listened to according to the first resource The signal strength of D2D signal of communication obtains the first testing result；

Step 1703, the second response is sent to the base station according to first testing result；

Whether the signal strength that second response is used to indicate the D2D signal of communication listened to according to the first resource is less than Predetermined strength threshold value.

When base station according to this second in response to determining that the D2D signal of communication that second terminal is listened to according to first resource signal When intensity is less than predetermined signal strength threshold value, which is determined as to be multiplexed by the first terminal and the second terminal Recoverable resources.

Wherein, it should be noted that in the response that second terminal is returned to base station, can directly lead to the D2D listened to The intensity of letter signal is sent to base station, whether is less than predetermined strength threshold value by base station detection signal strength；Alternatively, second terminal It can first detect whether signal strength is less than predetermined strength threshold value, and will test result carrying and be sent to base station in the response.This Outside, used resource can be by base station dynamic configuration when second terminal returns to the second response to base station.

Step 1704, the target resource that base station is sent is received；

The target resource is the resource that the base station is distributed from the recoverable resources；

Step 1705, the D2D signal of communication of first terminal transmission is received according to the target resource.

Figure 28 is referred to, it illustrates the method flow diagrams for the resource allocation methods that further embodiment of this invention provides.It should Method can be used in the second terminal shown in as any such as Fig. 9 to Figure 12, receive first eventually according to the D2D resource of base station distribution Hold the D2D signal of communication sent.The resource allocation methods may include:

Step 1801, receive base station transmission includes the third instruction of Secondary resource；

The Secondary resource is to have distributed to resource of the 4th terminal to receive D2D signal of communication；

Step 1802, D2D signal of communication is monitored according to the Secondary resource, detects the D2D listened to according to the Secondary resource The signal strength of signal of communication obtains the second testing result；

Step 1803, third response is sent to the base station according to second testing result；

Whether the signal strength that third response is used to indicate the D2D signal of communication listened to according to the Secondary resource is less than Predetermined strength threshold value.

In practical application, base station can give the 4th terminal to receive D2D communication by high-level signaling by currently allocated The D2D resource of signal is sent to second terminal as Secondary resource, and second terminal monitors D2D according to the Secondary resource that base station is sent Signal of communication, and according to snoop results to base station return third response, when base station according to the third in response to determining that second terminal root When the signal strength of the D2D signal of communication received according to Secondary resource is less than predetermined strength threshold value, the 4th is sent to the 4th terminal Instruction after the 4th terminal receives the instruction, monitors the discovery signal that first terminal is sent, and according to prison in scheduled resource Result is listened to return to the 4th response to base station, when the discovery signal that the 4th response the 4th terminal monitoring of instruction to first terminal is sent When signal quality is less than predetermined quality threshold value, Secondary resource is determined as to be answered by what first terminal and second terminal were multiplexed Use resource.

Wherein, it should be noted that in the response that second terminal is returned to base station, can directly lead to the D2D listened to The intensity of letter signal is sent to base station, whether is less than predetermined strength threshold value by base station detection signal strength；Alternatively, second terminal It can first detect whether signal strength is less than predetermined strength threshold value, and will test result carrying and be sent to base station in the response.This Outside, used resource can be by base station dynamic configuration when second terminal returns to third response to base station.

Step 1804, the target resource that base station is sent is received；

Step 1805, the D2D signal of communication of first terminal transmission is received according to the target resource.

Figure 29 is referred to, it illustrates the method flow diagrams of resource allocation methods provided by one embodiment of the present invention.It should Method can be used in the third terminal shown in as any such as Figure 13 to Figure 16, base station receive first terminal transmission with the After two terminals establish the request of D2D communication, base station is assisted to determine recoverable resources in allocated D2D resource.The resource point Method of completing the square may include:

Step 1901, the first instruction that base station is sent is received, which is that the base station is receiving first terminal hair The instruction for being sent after establishing the request that D2D is communicated with second terminal sent；

Step 1902, the discovery signal of first terminal transmission is monitored；

Step 1903, the signal quality for the discovery signal that Anti-Sniffer arrives obtains third testing result；

Step 1904, the first response is sent to the base station according to the third testing result；By the base station in first response It include first to the second terminal transmission when indicating that the signal quality of the discovery signal listened to is less than predetermined quality threshold value Second instruction of resource, and the second response of second terminal return is received, and indicate the second terminal root in second response When the signal strength of the D2D signal of communication listened to according to the first resource is less than predetermined strength threshold value, which is determined For recoverable resources, target resource is distributed from the recoverable resources, and the target resource is sent to the first terminal and is somebody's turn to do Second terminal sends D2D signal of communication according to the target resource by the first terminal, and is provided by the second terminal according to the target Source receives D2D signal of communication；Wherein, which is the D2D for having distributed to the third terminal to receive D2D signal of communication Resource, second instruction are used to indicate the second terminal and monitor D2D signal of communication according to the first resource；Second response is used for Indicate whether the signal strength for the D2D signal of communication that the second terminal is listened to according to the first resource is less than the predetermined strength threshold Value.

In conclusion resource allocation methods provided in an embodiment of the present invention, by referring to receive base station transmission first Monitor the discovery signal that first terminal is sent after order, and return to the first response to base station according to snoop results, by base station this The signal quality of the discovery signal of one first terminal that receives of response instruction third terminal is less than after predetermined quality threshold value to the Two terminals send the second instruction, and indicate that the second terminal is used according to third terminal in the second response returned according to second terminal It, will when being less than predetermined strength threshold value to receive the signal strength for the D2D signal of communication that the first resource of D2D signal of communication listens to First resource is determined as recoverable resources, solve in the prior art when in base station range request establish D2D communication end When holding quantity more, in fact it could happen that the problem of not idle D2D resource distributable situation, reach raising resource utilization With the purpose of power system capacity.

Refer to Figure 30, it illustrates another embodiment of the present invention provides resource allocation methods method flow diagram.It should Method can be used in the third terminal shown in as any such as Figure 13 to Figure 16, base station receive first terminal transmission with the After two terminals establish the request of D2D communication, base station is assisted to determine recoverable resources in allocated D2D resource.The resource point Method of completing the square may include:

Step 2001, the first instruction that base station is sent is received；

First instruction be the base station receive first terminal transmission for being asked with what second terminal established that D2D communicates The instruction sent after asking；

Step 2002, the discovery signal of first terminal transmission is monitored；

Step 2003, the signal quality for the discovery signal that Anti-Sniffer arrives obtains third testing result；

Step 2004, the first response is sent to the base station according to the third testing result.

Third terminal can to the base station send include this first response first response frame, first response frame be After receiving first instruction, according to first D2D communication frame of first resource transmission.

It wherein, can be by allocated, to send when being assigned the terminal of D2D resource to base station returning response The resource of D2D signal is to base station returning response, for example, the response for returning to base station can be carried after receiving the first instruction In first OFDM symbol in first D2D communication frame sent.Base station receives basis and has divided after the instruction of transmission first First D2D communication frame that the D2D resource matched is sent, and first OFDM symbol in the D2D communication frame received is parsed, with Obtain the first response that third terminal returns.

Base station when signal quality of the discovery signal that the first response instruction listens to is less than predetermined quality threshold value, to Second terminal transmission includes the second instruction of first resource, and receives the second response of second terminal return, and at this Second response indicates that the signal strength for the D2D signal of communication that the second terminal is listened to according to the first resource is less than predetermined strength When threshold value, which is determined as recoverable resources, target resource is distributed from the recoverable resources, and the target is provided Source is sent to the first terminal and the second terminal, by the first terminal according to target resource transmission D2D signal of communication, and by The second terminal receives D2D signal of communication according to the target resource；

Base station can send first to the third terminal for being assigned the progress D2D communication of D2D resource by high-level signaling Instruction, the discovery letter monitoring first terminal and sending after third terminal receives first instruction, on scheduled running time-frequency resource Number Discovery signal, and the first response is returned to base station according to the discovery signal listened to, base station is sentenced according to first response When the signal quality for the discovery signal that the first terminal that disconnected third terminal listens to is sent is less than predetermined quality threshold value, it will distribute to The D2D resource of third terminal is determined as first resource.Base station to second terminal send include the first resource second instruction, After second terminal receives second instruction, the D2D that other terminals are sent by the Secondary resource is monitored according to the Secondary resource Signal of communication, and according to snoop results to base station return second response, base station according to this second in response to determining that second terminal accordingly The resource that the signal strength of the D2D signal of communication listened to is less than predetermined signal strength threshold value is recoverable resources.

Figure 31 is referred to, it illustrates the method flow diagrams of resource allocation methods provided by one embodiment of the present invention.It should Method can be used in the 4th terminal shown in as any such as Figure 17 to Figure 20, base station receive first terminal transmission with the After two terminals establish the request of D2D communication, base station is assisted to determine recoverable resources in allocated D2D resource.The resource point Method of completing the square may include:

Step 2101, the 4th instruction that base station is sent is received；4th instruction is that the base station is receiving first terminal hair That send is used to establish the request that D2D is communicated with second terminal, includes the third instruction of Secondary resource to second terminal transmission, The third response of second terminal return is received, and is responded in the third and indicates that the second terminal is listened to according to the Secondary resource The instruction that sends when being less than predetermined strength threshold value of the signal strength of D2D signal of communication；The Secondary resource be distributed to this Resource of four terminals to receive D2D signal of communication, third instruction are used to indicate the second terminal and are supervised according to the Secondary resource D2D signal of communication is listened, third response is used to indicate the D2D signal of communication that the second terminal is listened to according to the Secondary resource Whether signal strength is less than the predetermined strength threshold value；

Step 2102, the discovery signal of first terminal transmission is monitored；

Step 2103, the signal quality for the discovery signal that Anti-Sniffer arrives obtains the 4th testing result；

Step 2104, the 4th response is sent to the base station according to the 4th testing result；4th response is used to indicate prison Whether the signal quality for the discovery signal heard is less than predetermined quality threshold value；It is listened to by the base station in the 4th response instruction The discovery signal signal quality be less than the predetermined quality threshold value when, which is determined as recoverable resources, from this Distribute target resource in recoverable resources, and the target resource be sent to the first terminal and the second terminal, by this first Terminal sends D2D signal of communication according to the target resource, and receives D2D communication letter according to the target resource by the second terminal Number.

In conclusion resource allocation methods provided in an embodiment of the present invention, are sent by receiving base station to second terminal It include the third instruction of Secondary resource, and the third response instruction second terminal that second terminal returns based on the received is according to the After the signal strength for the D2D signal of communication that two resources listen to is less than the 4th instruction sent when predetermined strength threshold value, detection prison The signal quality for the discovery signal that the first terminal heard is sent, and the 4th response is returned to base station according to testing result, by base It stands and is less than predetermined quality in the signal quality for finding signal that the first terminal that the 4th response the 4th terminal monitoring of instruction arrives is sent When threshold value, Secondary resource is determined as recoverable resources, solve in the prior art when in base station range request establish D2D When the terminal quantity of communication is more, in fact it could happen that the problem of not idle D2D resource distributable situation, reach raising money The purpose of source utilization rate and power system capacity.

Refer to Figure 32, it illustrates another embodiment of the present invention provides resource allocation methods method flow diagram.It should Method can be used in the 4th terminal shown in as any such as Figure 17 to Figure 20, base station receive first terminal transmission with the After two terminals establish the request of D2D communication, base station is assisted to determine recoverable resources in allocated D2D resource.The resource point Method of completing the square may include:

Step 2201, the 4th instruction that base station is sent is received；

4th instruction be the base station receive first terminal transmission for being asked with what second terminal established that D2D communicates It asks, includes the third instruction of Secondary resource to second terminal transmission, the third for receiving second terminal return responds, and It is predetermined strong that third response indicates that the signal strength for the D2D signal of communication that the second terminal is listened to according to the Secondary resource is less than The instruction sent when spending threshold value；The Secondary resource is to have distributed to resource of the 4th terminal to receive D2D signal of communication, should Third instruction is used to indicate the second terminal and monitors D2D signal of communication according to the Secondary resource, and third response is used to indicate this Whether the signal strength for the D2D signal of communication that second terminal is listened to according to the Secondary resource is less than the predetermined strength threshold value；

Step 2202, the discovery signal of first terminal transmission is monitored；

Step 2203, the signal quality for the discovery signal that Anti-Sniffer arrives obtains the 4th testing result；

Step 2204, the 4th response is sent to the base station according to the 4th testing result；4th response is used to indicate prison Whether the signal quality for the discovery signal heard is less than predetermined quality threshold value.

It includes the 4th the second response frame responded that 4th terminal is sent to the base station, which is that should connect After receiving the 4th instruction, according to first D2D communication frame of Secondary resource transmission.

The base station is less than the predetermined quality threshold value in the signal quality for the discovery signal that the 4th response instruction listens to When, which is determined as recoverable resources, target resource is distributed from the recoverable resources, and the target resource is sent out Give the first terminal and the second terminal, D2D signal of communication sent according to the target resource by the first terminal, and by this Two terminals receive D2D signal of communication according to the target resource.

Figure 33 is referred to, it illustrates the method flow diagrams of resource allocation methods provided by one embodiment of the present invention.It should Method can be used for establishing the reusable resource of terminal distribution of D2D communication for request in allocated D2D resource.Assuming that being D2D resource in system is simultaneously not fixed, by base station according to the terminal log dynamic configuration for currently needing to carry out D2D communication.When first When terminal request is established D2D with second terminal and communicated, base station considers the allocated D2D resource of multiplexing first.The resource allocation side Method may include:

Step 2301, first terminal sends to base station and establishes the request that D2D is communicated with second terminal；

Step 2302, base station sends the first instruction to third terminal；

In practical application, base station can be to the currently allocated terminal broadcast high level letter for having D2D resource to carry out D2D communication It enables, indicates the discovery signal that each terminal monitoring first terminal for being assigned D2D resource is sent.

Step 2303, third terminal monitors the discovery signal that first terminal is sent according to first instruction；

Step 2304, third terminal returns to the first response to base station；

The signal quality that first response is used to indicate the discovery signal that the first terminal that third terminal listens to is sent is It is no to be less than predetermined quality threshold value.

Specifically, the previously known reference content of each terminal can be carried in the discovery signal that first terminal is sent, After each terminal for being assigned D2D resource receives discovery signal, discovery signal is parsed, and parsing is obtained Content is compared with reference content, obtains parsing accuracy rate, and send out the parsing accuracy rate as the first terminal received The signal quality of the discovery signal sent.

Step 2305, the letter for the discovery signal that base station is sent in the first terminal that the first response instruction third terminal listens to When number quality is less than predetermined quality threshold value, sent to second terminal include first resource the second instruction；

The first resource is that base station is pre-assigned to third terminal, so that third terminal receives D2D signal of communication accordingly D2D resource.

In practical application, base station can be by the discovery signals for returning to the first terminal that instruction receives all in previous step Signal quality be less than predetermined quality threshold value response corresponding to D2D resource conduct of the terminal to receive D2D signal of communication First resource.

It should be noted that in the response that each terminal for being assigned D2D resource is returned to base station, can directly by The signal quality of the discovery signal of the first terminal listened to is sent to base station, predetermined by whether base station detection signal strength is less than Quality threshold；Alternatively, can also first detect whether signal quality is less than predetermined quality threshold value, and it will test result carrying and responding In be sent to base station.

Step 2306, second terminal monitors D2D signal of communication according to the first resource；

Second terminal monitors D2D signal of communication according to the first resource, and the D2D signal of communication that arrives of Anti-Sniffer is strong Degree.

Step 2307, second terminal returns to the second response to base station；

Second response, which is used to indicate the signal strength of the D2D signal of communication that second terminal is listened to according to first resource, is It is no to be less than predetermined strength threshold value.

In the response that second terminal is returned to base station, directly the intensity of the D2D signal of communication listened to can be sent to Whether base station is less than predetermined strength threshold value by base station detection signal strength；Alternatively, second terminal can also first detect signal strength Whether it is less than predetermined strength threshold value, and will test result carrying and be sent to base station in the response.

Step 2308, the D2D signal of communication that base station is listened to according to first resource in the second response instruction second terminal When signal strength is less than predetermined strength threshold value, first resource is determined as recoverable resources；

After base station receives the second response of second terminal return, second terminal is listened to accordingly according to the second response The resource that the signal strength of D2D signal of communication is less than predetermined strength threshold value is determined as recoverable resources.

Step 2309, target resource is distributed in base station from recoverable resources；

It base station can be in conjunction with actual conditions or preassigned rule, by some or all of money in recoverable resources Source is assigned as target resource.

Step 2310, if target resource is insufficient, target resource is further distributed from idle D2D resource in base station；

Whether enough base station can detecte target resource, if from that can answer after distributing target resource in recoverable resources It is enough with the target resource distributed in resource, then idle D2D resource of not reallocating；Second terminal is supervised accordingly if it does not exist The signal strength for the D2D signal of communication heard is less than the resource of predetermined strength threshold value, alternatively, the mesh distributed from recoverable resources Mark resource is still inadequate, then base station detects whether the D2D resource in the presence of the free time, if it exists idle D2D resource, then from the free time Target resource is further distributed in D2D resource.

Step 2311, target resource is sent to first terminal and second terminal by base station, is provided by first terminal according to target Source sends D2D signal of communication, and receives D2D signal of communication according to target resource by second terminal.

It should be noted that the embodiment of the present invention first considers the allocated resource of multiplexing with base station, reusable resource is not When sufficient, consider further that and be illustrated for idle D2D resource, in practical applications, can also first consider the idle D2D money of distribution Source considers further that the allocated resource of multiplexing when idle D2D inadequate resource.

In conclusion resource allocation methods provided in an embodiment of the present invention, base station receive first terminal transmission with the After two terminals establish the request of D2D communication, instruction third terminal monitors the discovery signal that first terminal is sent, and in third terminal When the signal quality for the discovery signal that the first terminal that listens to is sent is less than predetermined quality threshold value, instruction second terminal is according to the Three terminals monitor D2D signal of communication to receive the first resource of D2D signal of communication, and are supervised in second terminal according to first resource When the signal strength for the D2D signal of communication heard is less than predetermined strength threshold value, first resource is determined as recoverable resources, and The target resource that first terminal is used to send D2D signal of communication to second terminal is distributed in recoverable resources, solves existing skill In art when requesting the terminal quantity for establishing D2D communication more in base station range, in fact it could happen that not idle D2D resource The problem of distributable situation, achievees the purpose that improve resource utilization and power system capacity.

Refer to Figure 34, it illustrates another embodiment of the present invention provides resource allocation methods method flow diagram.It should Method can be used for establishing the reusable resource of terminal distribution of D2D communication for request in allocated D2D resource.Assuming that being D2D resource in system is fixed, and when first terminal request, which establishes D2D with second terminal, to be communicated, base station considers that distribution is idle first D2D resource, consider further that the allocated D2D resource of multiplexing.The resource allocation methods may include:

Step 2401, first terminal sends to base station and establishes the request that D2D is communicated with second terminal；

Step 2402, base station is detected whether in the presence of idle D2D resource；

In practical application, if there is idle D2D resource in base station detection, the distribution target money from idle D2D resource Source, and whether the target resource for detecting distribution is enough, if the target resource of distribution is enough, without subsequent step.

Step 2403, idle D2D resource if it does not exist, base station sent to second terminal include Secondary resource third Instruction；

If the target resource that base station is distributed from idle D2D resource is insufficient or there is no idle D2D resource, bases It stands and is sent to second terminal as Secondary resource as the resource for receiving D2D signal of communication to the 4th terminal for currently allocated.

Wherein, base station can broadcast high-level signaling to second terminal, carry Secondary resource in the high-level signaling of broadcast, use To indicate that second terminal monitors D2D signal of communication according to the Secondary resource.

Step 2404, second terminal monitors D2D signal of communication according to Secondary resource；

Step 2405, second terminal returns to third response to base station；

Third response, which is used to indicate the signal strength of the D2D signal of communication that second terminal is listened to according to Secondary resource, is It is no to be less than predetermined strength threshold value.

Second terminal according to Secondary resource monitor D2D signal of communication, and to base station return third respond specific steps with Second terminal monitors D2D signal of communication according to first resource in method shown in Figure 33, and the step of the first response is returned to base station Rapid similar, details are not described herein again.

Step 2406, base station responds the D2D signal of communication that instruction second terminal is listened to according to Secondary resource in third When signal strength is less than predetermined strength threshold value, the 4th instruction is sent to the 4th terminal；

In practical application, all the allocated D2D resources can be sent to second terminal by base station, by second terminal root D2D signal of communication is monitored according to allocated D2D resource, and returns to third response to base station according to snoop results.Base station is by third The resource that the signal strength for the D2D signal of communication that the second terminal indicated in response listens to accordingly is less than predetermined strength threshold value is true It is set to primary election resource, and sends the 4th instruction to receive the terminal of D2D signal of communication to the primary election resource is assigned.

Step 2407, the discovery signal that the 4th terminal monitoring first terminal is sent；

Step 2408, the 4th terminal returns to the 4th response to base station；

4th response be used to indicate the 4th terminal monitoring to the signal quality of discovery signal that sends of first terminal be It is no to be less than predetermined quality threshold value.

Step 2409, the letter for the discovery signal that base station is sent in the first terminal that the 4th response the 4th terminal monitoring of instruction arrives When number quality is less than predetermined quality threshold value, Secondary resource is determined as recoverable resources.

If being assigned the discovery that the primary election resource is sent to receive the first terminal that the terminal monitoring of D2D signal of communication arrives The signal quality of signal is less than predetermined quality threshold value, then the primary election resource is determined as recoverable resources by base station.

Step 2410, target resource is distributed in base station from recoverable resources；

Step 2411, target resource is sent to first terminal and second terminal by base station, is provided by first terminal according to target Source sends D2D signal of communication, and receives D2D signal of communication according to target resource by second terminal.

It should be noted that the embodiment of the present invention first considers the idle D2D resource of distribution with base station, provided in idle D2D It when the deficiency of source, considers further that and is illustrated for being multiplexed allocated resource, in practical applications, can also first consider that multiplexing has divided The D2D resource matched considers further that distribution is empty when recoverable resources or recoverable resources deficiency are not present in allocated resource Not busy D2D resource.

In conclusion resource allocation methods provided in an embodiment of the present invention, base station receive first terminal transmission with the After two terminals establish the request of D2D communication, indicate second terminal according to distribute to the 4th terminal to receive D2D signal of communication The Secondary resource signal strength of D2D signal of communication monitoring D2D signal of communication, and listen in second terminal be less than it is predetermined strong When spending threshold value, the discovery signal that the 4th terminal monitoring first terminal of instruction is sent, when the letter of the discovery signal of the 4th terminal monitoring When number quality is less than predetermined quality threshold value, Secondary resource is determined as recoverable resources, and first is distributed in recoverable resources Terminal is used to send the target resource of D2D signal of communication to second terminal, solves in the prior art when in base station range Request establish D2D communication terminal quantity it is more when, in fact it could happen that the not idle distributable situation of D2D resource is asked Topic achievees the purpose that improve resource utilization and power system capacity.

Figure 35 is referred to, it illustrates the system pie graphs of resource allocation system provided by one embodiment of the present invention.It should System may include any base station 2501, the first terminal 25002 as described in Fig. 5 to Fig. 8 is any, such as shown in Figure 1 to Figure 4 Any second terminal 2503 of Fig. 9 to Figure 12 and at least one third terminal 2504 as described in Figure 13 to Figure 16 is any And/or at least one 4th terminal 2505 as described in Figure 17 to Figure 20 is any.

In conclusion resource allocation system provided in an embodiment of the present invention, by receiving first terminal transmission, with After second terminal establishes the request of end-to-end D2D communication, first terminal and second terminal are determined in the allocated D2D resource Reusable resource, and target resource is distributed from recoverable resources solves in the prior art when asking in base station range When asking the terminal quantity for establishing D2D communication more, in fact it could happen that the problem of not idle D2D resource distributable situation, Achieve the purpose that improve resource utilization and power system capacity.

It should be understood that base station provided by the above embodiment and terminal be when distributing D2D resource, only with above-mentioned each function The division progress of module can according to need and for example, in practical application by above-mentioned function distribution by different function moulds Block is completed, i.e., the internal structure of equipment is divided into different functional modules, to complete all or part of function described above Energy.In addition, base station provided by the above embodiment, first terminal, second terminal, third terminal and the 4th terminal and resource allocation side Method embodiment belongs to same design.

Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..

The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims

1. a kind of base station, which is characterized in that the base station includes:

Request receiving module, for receive first terminal transmission for second terminal establishing the request that end-to-end D2D is communicated；

Resource determination module, for being determined in the allocated D2D resource by the first terminal and described second eventually The recoverable resources of multiplexing is held, the recoverable resources is to be assigned to receive the terminal that D2D is communicated receives described first The signal quality for the discovery signal that terminal is sent is less than predetermined quality threshold value, and the D2D that the second terminal receives accordingly is logical Believe that the signal strength of signal is less than the resource of predetermined strength threshold value；

First resource sending module, for the target resource to be sent to the first terminal, by the first terminal according to The target resource sends D2D signal of communication；

Secondary resource sending module, for the target resource to be sent to the second terminal, by the second terminal according to The target resource receives D2D signal of communication.

2. base station according to claim 1, which is characterized in that the resource determination module, comprising:

First instruction sending unit, for sending the first instruction to third terminal, first instruction is used to indicate the third The discovery signal that first terminal described in terminal monitoring is sent；

First response receiving unit, the first response returned for receiving the third terminal, first response are used to indicate Whether the signal quality for the discovery signal that the third terminal listens to is less than predetermined quality threshold value；

Second instruction sending unit, if indicating the discovery signal that the third terminal listens to for first response Signal quality is less than the predetermined quality threshold value, then includes the second instruction of first resource, institute to second terminal transmission Stating first resource is the D2D resource for having distributed to the third terminal to receive D2D signal of communication, and second instruction is used for Indicate that the second terminal monitors D2D signal of communication according to the first resource；

Second response receiving unit, the second response returned for receiving the second terminal, second response are used to indicate Whether the signal strength for the D2D signal of communication that the second terminal is listened to according to the first resource is less than predetermined strength threshold Value；

First determination unit, if second response for receiving indicates that the second terminal is supervised according to the first resource The signal strength for the D2D signal of communication heard is less than the predetermined strength threshold value, then by the first resource be determined as it is described can Multiplexed resource.

3. base station according to claim 2, which is characterized in that the first response receiving unit, for receiving described the What three terminals were sent includes the first response frame of first response, and first response frame is that the third terminal is receiving To after first instruction, according to first D2D communication frame of first resource transmission.

4. base station according to claim 1, which is characterized in that the resource determination module, comprising:

Third instruction sending unit, for being instructed to the third that second terminal transmission includes Secondary resource, described second Resource is the D2D resource for having distributed to the 4th terminal to receive D2D signal of communication；Third instruction is used to indicate described the Two terminals monitor D2D signal of communication according to the Secondary resource；

Third responds receiving unit, and the third response returned for receiving the second terminal, the third response is used to indicate Whether the signal strength for the D2D signal of communication that the second terminal is listened to according to the Secondary resource is less than predetermined strength threshold Value；

4th instruction sending unit, if indicating that the second terminal is listened to according to the Secondary resource for third response D2D signal of communication signal strength be less than the predetermined strength threshold value, then to the 4th terminal send the 4th instruction, it is described 4th instruction is used to indicate the discovery signal of the transmission of first terminal described in the 4th terminal monitoring；

4th response receiving unit, the 4th response returned for receiving the 4th terminal, the 4th response are used to indicate 4th terminal monitoring to the signal quality of the discovery signal whether be less than predetermined quality threshold value；

Second determination unit, if the 4th response for receiving indicates the discovery letter that the 4th terminal monitoring arrives Number signal quality be less than the predetermined quality threshold value, then the Secondary resource is determined as the recoverable resources.

5. base station according to claim 4, which is characterized in that the 4th response receiving unit, for receiving described the What four terminals were sent includes the second response frame of the 4th response, and second response frame is that the 4th terminal is receiving To after the 4th instruction, according to first D2D communication frame of Secondary resource transmission.

6. base station according to any one of claims 1 to 5, which is characterized in that the base station further include:

First detection module, for detecting after distributing target resource in the recoverable resources, whether the target resource It is sufficient；

Second detection module, if the testing result for the first detection module is that the target resource is insufficient, detection is It is no to there is idle D2D resource；

Secondary resource distribution module, if the testing result for second detection module is the D2D resource in the presence of the free time, from The target resource is distributed in the D2D resource of the free time.

7. base station according to any one of claims 1 to 5, which is characterized in that the base station further include:

Third detection module, for the first resource distribution module distributed from the recoverable resources target resource it Before, it detects whether in the presence of idle D2D resource；

Information resources distribution module, if the testing result for the third detection module is the D2D resource in the presence of the free time, from The target resource is distributed in the D2D resource of the free time；

4th detection module, for detecting after distributing the target resource in the D2D resource of the free time, the target money Whether source is sufficient；

The first resource distribution module, if the testing result for the 4th detection module is that the target resource is insufficient, Then execute described the step of distributing target resource from the recoverable resources.

8. a kind of base station, which is characterized in that the base station includes: receiver, processor and transmitter；

The receiver, for receive first terminal transmission for second terminal establishing the request that end-to-end D2D is communicated；

The processor, for being determined in the allocated D2D resource by the first terminal and the second terminal The recoverable resources of multiplexing, the recoverable resources are to be assigned to receive the terminal that D2D is communicated receives described first eventually The signal quality for the discovery signal that end is sent is less than predetermined quality threshold value, and the D2D communication that the second terminal receives accordingly The signal strength of signal is less than the resource of predetermined strength threshold value；

The target resource is sent to the first terminal and described second eventually for controlling the transmitter by the processor End sends D2D signal of communication according to the target resource by the first terminal, and by the second terminal according to the target Resource receives D2D signal of communication.

9. base station according to claim 8, which is characterized in that

The processor sends the first instruction to third terminal for controlling the transmitter, and first instruction is used to indicate The third terminal monitors the discovery signal that the first terminal is sent；

The receiver, the first response returned for receiving the third terminal, first response are used to indicate described the Three terminal monitorings to the signal quality of the discovery signal whether be less than predetermined quality threshold value；

The processor, if indicating the signal matter for the discovery signal that the third terminal listens to for first response Amount is less than the predetermined quality threshold value, then controlling the transmitter and sending to the second terminal includes the second of first resource Instruction, the first resource are the D2D resource for having distributed to the third terminal to receive D2D signal of communication, described second Instruction is used to indicate the second terminal and monitors D2D signal of communication according to the first resource；

The receiver, the second response returned for receiving the second terminal, second response are used to indicate described the Whether the signal strength for the D2D signal of communication that two terminals are listened to according to the first resource is less than predetermined strength threshold value；

The processor, if indicating the second terminal according to described for second response that the receiver receives The signal strength for the D2D signal of communication that one resource listens to is less than the predetermined strength threshold value, then determines the first resource For the recoverable resources.

10. base station according to claim 9, which is characterized in that the receiver is sent for receiving the third terminal Include it is described first response the first response frame, first response frame be the third terminal receiving described first After instruction, according to first D2D communication frame of first resource transmission.

11. base station according to claim 8, which is characterized in that

The processor is instructed for controlling the transmitter to the third that second terminal transmission includes Secondary resource, The Secondary resource is the D2D resource for having distributed to the 4th terminal to receive D2D signal of communication；The third instruction is for referring to Show that the second terminal monitors D2D signal of communication according to the Secondary resource；

The receiver, the third response returned for receiving the second terminal, the third response are used to indicate described the Whether the signal strength for the D2D signal of communication that two terminals are listened to according to the Secondary resource is less than predetermined strength threshold value；

The processor, if indicating the D2D that the second terminal is listened to according to the Secondary resource for third response The signal strength of signal of communication is less than the predetermined strength threshold value, then controls the transmitter to the 4th terminal and send the 4th Instruction, the 4th instruction are used to indicate the discovery signal of the transmission of first terminal described in the 4th terminal monitoring；

The receiver, the 4th response returned for receiving the 4th terminal, the 4th response are used to indicate described the Four terminal monitorings to the signal quality of the discovery signal whether be less than predetermined quality threshold value；

The processor, if indicating the institute that the 4th terminal monitoring arrives for the 4th response that the receiver receives The signal quality for stating discovery signal is less than the predetermined quality threshold value, then the Secondary resource is determined as the reusable and provided Source.

12. base station according to claim 11, which is characterized in that the receiver, for receiving the 4th terminal hair What is sent includes the second response frame of the 4th response, and second response frame is that the 4th terminal is receiving described the After four instructions, according to first D2D communication frame of Secondary resource transmission.

13. according to any base station of claim 8 to 12, which is characterized in that

The processor is also used to detect after distributing target resource in the recoverable resources, and whether the target resource It is sufficient；

The processor detects whether if being that the target resource is insufficient for testing result in the presence of idle D2D resource；

The processor, if being to be distributed from the D2D resource of the free time in the presence of idle D2D resource for testing result The target resource.

14. according to any base station of claim 8 to 12, it is characterised in that

The processor, for detecting whether in the presence of idle D2D before distributing target resource in the recoverable resources Resource；

The processor, if being to be distributed from the D2D resource of the free time in the presence of idle D2D resource for testing result The target resource；

The processor, for detecting after distributing the target resource in the D2D resource of the free time, the target resource It is whether sufficient；

The processor executes described from the recoverable resources point if being that the target resource is insufficient for testing result The step of with target resource.

15. first terminal, which is characterized in that the first terminal includes:

Request sending module, for sending to base station for establishing the request that end-to-end D2D is communicated, the request with second terminal The base station is used to indicate to be determined to be multiplexed by the first terminal and the second terminal in the allocated D2D resource Recoverable resources, and target resource is distributed from the recoverable resources, the recoverable resources is to be assigned to receive D2D The signal quality for the discovery signal that the first terminal that the terminal of communication receives is sent is less than predetermined quality threshold value, and described The signal strength for the D2D signal of communication that second terminal receives accordingly is less than the resource of predetermined strength threshold value；

16. first terminal according to claim 15, which is characterized in that the first terminal further include:

17. first terminal, which is characterized in that the first terminal includes: processor, transmitter and receiver；

The processor is sent to base station for establishing what end-to-end D2D was communicated with second terminal for controlling the transmitter Request, the request are used to indicate the base station and are determined in the allocated D2D resource by the first terminal and institute The recoverable resources of second terminal multiplexing is stated, and distributes target resource from the recoverable resources, the recoverable resources is It is assigned to receive the signal quality for the discovery signal that the first terminal that the terminal that D2D is communicated receives is sent less than predetermined Quality threshold, and the signal strength of D2D signal of communication that receives accordingly of the second terminal is less than the money of predetermined strength threshold value Source；

The receiver, the target resource sent for receiving the base station；

The processor sends D2D communication letter to the second terminal according to the target resource for controlling the transmitter Number.

18. first terminal according to claim 17, which is characterized in that

The processor is also used to control the transmitter periodicity sending discovery signal.

19. second terminal, which is characterized in that the second terminal includes:

Secondary resource receiving module, for receiving the target resource of base station transmission, the target resource is that the base station receives After what first terminal was sent is used to establish the request that end-to-end D2D is communicated with the second terminal, in the allocated D2D resource In be determined to the recoverable resources being multiplexed by the first terminal and the second terminal, and from the recoverable resources point The resource matched, the recoverable resources are to be assigned to the first terminal that the terminal that reception D2D is communicated receives to send It was found that the signal quality of signal is less than predetermined quality threshold value, and the letter of D2D signal of communication that the second terminal receives accordingly Number intensity is less than the resource of predetermined strength threshold value；

Signal of communication receiving module, for receiving the D2D signal of communication that the first terminal is sent according to the target resource.

20. second terminal according to claim 19, which is characterized in that the second terminal further include:

Second command reception module, for connecing before the target resource that the Secondary resource receiving module receives that base station is sent Receive the base station transmission includes the second instruction of first resource, and the first resource is to have distributed to third terminal to connect Receive the D2D resource of D2D signal of communication；

5th detection module obtains for detecting the signal strength of the D2D signal of communication listened to according to the first resource One testing result；

Second response sending module, responds, described second for sending second to the base station according to first testing result Whether the signal strength that response is used to indicate the D2D signal of communication listened to according to the first resource is less than predetermined strength threshold Value.

21. second terminal according to claim 19, which is characterized in that the second terminal further include:

Third command reception module, for connecing before the target resource that the Secondary resource receiving module receives that base station is sent Receive the base station transmission includes the third instruction of Secondary resource, and the Secondary resource is to have distributed to the 4th terminal to connect Receive the resource of D2D signal of communication；

6th detection module obtains for detecting the signal strength of the D2D signal of communication listened to according to the Secondary resource Two testing results；

Third responds sending module, for sending third response, the third to the base station according to second testing result Whether the signal strength that response is used to indicate the D2D signal of communication listened to according to the Secondary resource is less than predetermined strength threshold Value.

22. second terminal, which is characterized in that the second terminal includes: receiver and processor；

The receiver, for receiving the target resource of base station transmission, the target resource is that the base station receives first eventually After what end was sent is used to establish the request that end-to-end D2D is communicated with the second terminal, determined in the allocated D2D resource The recoverable resources that can be multiplexed by the first terminal and the second terminal, and the money distributed from the recoverable resources Source, the recoverable resources are to be assigned to receive the discovery letter that the first terminal that the terminal that D2D is communicated receives is sent Number signal quality be less than predetermined quality threshold value, and the signal strength of D2D signal of communication that the second terminal receives accordingly Less than the resource of predetermined strength threshold value；

The processor is logical for controlling the D2D that the receiver receives the first terminal transmission according to the target resource Believe signal.

23. second terminal according to claim 22, which is characterized in that the second terminal further include: transmitter；

The receiver is also used to before receiving the target resource that base station is sent, and receive that the base station sends includes the Second instruction of one resource, the first resource is the D2D resource for having distributed to third terminal to receive D2D signal of communication；

The processor obtains first for detecting the signal strength of the D2D signal of communication listened to according to the first resource Testing result；

The processor sends the second response to the base station according to first testing result for controlling the transmitter, It is predetermined whether the signal strength that second response is used to indicate the D2D signal of communication listened to according to the first resource is less than Intensity threshold.

24. second terminal according to claim 22, which is characterized in that the second terminal further include: transmitter；

The receiver includes second for before receiving the target resource that base station is sent, receive the base station transmission The third of resource instructs, and the Secondary resource is to have distributed to resource of the 4th terminal to receive D2D signal of communication；

The processor obtains second for detecting the signal strength of the D2D signal of communication listened to according to the Secondary resource Testing result；

The processor sends third response to the base station according to second testing result for controlling the transmitter, It is predetermined whether the signal strength that the third response is used to indicate the D2D signal of communication listened to according to the Secondary resource is less than Intensity threshold.

25. third terminal, which is characterized in that the third terminal includes:

First command reception module, for receiving the first instruction of base station transmission, first instruction is that the base station is receiving The instruction for being sent after establishing the request that D2D is communicated with second terminal sent to first terminal；

7th detection module monitors the signal quality for the discovery signal that module listens to for detecting the third, obtains Third testing result；

First response sending module, for sending the first response to the base station according to the third testing result；By the base It stands when the signal quality of the discovery signal that the first response instruction listens to is less than predetermined quality threshold value, Xiang Suoshu the The transmission of two terminals includes the second instruction of first resource, and receives the second response that the second terminal returns, and described It is predetermined that second response indicates that the signal strength for the D2D signal of communication that the second terminal is listened to according to the first resource is less than When intensity threshold, the first resource is determined as recoverable resources, target resource is distributed from the recoverable resources, and will The target resource is sent to the first terminal and the second terminal, is sent out by the first terminal according to the target resource D2D signal of communication is sent, and D2D signal of communication is received according to the target resource by the second terminal；

Wherein, the first resource is the D2D resource for having distributed to the third terminal to receive D2D signal of communication, described Second instruction is used to indicate the second terminal and monitors D2D signal of communication according to the first resource；Second response is used for It is described predetermined to indicate whether the signal strength for the D2D signal of communication that the second terminal is listened to according to the first resource is less than Intensity threshold.

26. third terminal according to claim 25, which is characterized in that the first response sending module is used for institute Stating base station and sending includes the described first the first response frame responded, and first response frame is to receive first instruction Afterwards, the first D2D communication frame sent according to the first resource.

27. third terminal, which is characterized in that the third terminal includes: receiver, processor and transmitter；

The receiver, for receiving the first instruction of base station transmission, first instruction is that the base station is receiving first The instruction for being sent after establishing the request that D2D is communicated with second terminal that terminal is sent；

The processor sends the first response to the base station according to the third testing result for controlling the transmitter； By the base station when the signal quality for the discovery signal that the first response instruction listens to is less than predetermined quality threshold value, To second terminal transmission include the second instruction of first resource, and receive the second response that the second terminal returns, And the signal strength for the D2D signal of communication that the second terminal is listened to according to the first resource is indicated in second response When less than predetermined strength threshold value, the first resource is determined as recoverable resources, distributes target from the recoverable resources Resource, and the target resource is sent to the first terminal and the second terminal, as the first terminal according to Target resource sends D2D signal of communication, and receives D2D signal of communication according to the target resource by the second terminal；

28. third terminal according to claim 27, which is characterized in that the processor, for controlling the transmitter Sending to the base station includes the described first the first response frame responded, and first response frame is to receive described first After instruction, according to first D2D communication frame of first resource transmission.

29. the 4th terminal, which is characterized in that the 4th terminal includes:

4th command reception module, for receiving the 4th instruction of base station transmission；4th instruction is that the base station is receiving It is used to establish the request that D2D is communicated with second terminal to what first terminal was sent, the transmission of Xiang Suoshu second terminal includes second The third of resource instructs, and receives the third response that the second terminal returns, and respond instruction described second eventually in the third The signal strength of the D2D signal of communication listened to according to the Secondary resource is held to be less than the instruction sent when predetermined strength threshold value； The Secondary resource is the resource for having distributed to the 4th terminal to receive D2D signal of communication, and the third instruction is used for Indicate that the second terminal monitors D2D signal of communication according to the Secondary resource, the third response is used to indicate described second Whether the signal strength for the D2D signal of communication that terminal is listened to according to the Secondary resource is less than the predetermined strength threshold value；

4th response sending module, for sending the 4th response to the base station according to the 4th testing result；Described 4th Whether the signal quality that response is used to indicate the discovery signal listened to is less than predetermined quality threshold value；By the base station in institute When stating the signal quality for the discovery signal that the 4th response instruction listens to less than the predetermined quality threshold value, by described second Resource is determined as recoverable resources, target resource is distributed from the recoverable resources, and the target resource is sent to institute First terminal and the second terminal are stated, D2D signal of communication is sent according to the target resource by the first terminal, and by institute It states second terminal and D2D signal of communication is received according to the target resource.

30. the 4th terminal according to claim 29, which is characterized in that the 4th response sending module is used for institute Stating base station and sending includes the described 4th the second response frame responded, and second response frame is receiving the described 4th to be described After instruction, according to first D2D communication frame of Secondary resource transmission.

31. the 4th terminal, which is characterized in that the 4th terminal includes: receiver, processor and transmitter；

The receiver, for receiving the 4th instruction of base station transmission；4th instruction is that the base station is receiving first What terminal was sent is used to establish the request that D2D is communicated with second terminal, and the transmission of Xiang Suoshu second terminal includes Secondary resource Third instruction, receives the third response that the second terminal returns, and third response indicate the second terminal according to The signal strength for the D2D signal of communication that the Secondary resource listens to is less than the instruction sent when predetermined strength threshold value；Described Two resources are the resource for having distributed to the 4th terminal to receive D2D signal of communication, and the third instruction is used to indicate institute It states second terminal and D2D signal of communication is monitored according to the Secondary resource, the third response is used to indicate the second terminal root Whether the signal strength of the D2D signal of communication listened to according to the Secondary resource is less than the predetermined strength threshold value；

The processor sends the 4th response to the base station according to the 4th testing result for controlling the transmitter； Whether the signal quality that the 4th response is used to indicate the discovery signal listened to is less than predetermined quality threshold value；By described It base station, will when the signal quality for the discovery signal that the 4th response instruction listens to is less than the predetermined quality threshold value The Secondary resource is determined as recoverable resources, distributes target resource from the recoverable resources, and by the target resource It is sent to the first terminal and the second terminal, D2D communication letter is sent according to the target resource by the first terminal Number, and D2D signal of communication is received according to the target resource by the second terminal.

32. the 4th terminal according to claim 31, which is characterized in that the processor, for controlling the transmitter Sent to the base station include the 4th response the second response frame, second response frame be it is described receive it is described After 4th instruction, according to first D2D communication frame of Secondary resource transmission.

33. a kind of resource allocation methods, in base station, which is characterized in that the described method includes:

The reusable money being multiplexed by the first terminal and the second terminal is determined in the allocated D2D resource Source, the recoverable resources are to be assigned to receive the discovery letter that the first terminal that the terminal that D2D is communicated receives is sent Number signal quality be less than predetermined quality threshold value, and the signal strength of D2D signal of communication that the second terminal receives accordingly Less than the resource of predetermined strength threshold value；

Target resource is distributed from the recoverable resources；

The target resource is sent to the first terminal and the second terminal, by the first terminal according to the target Resource sends D2D signal of communication, and receives D2D signal of communication according to the target resource by the second terminal.

34. according to the method for claim 33, which is characterized in that described to be determined in the allocated D2D resource The recoverable resources being multiplexed by the first terminal and the second terminal, comprising:

The first instruction is sent to third terminal, first instruction is used to indicate the third terminal and monitors the first terminal hair The discovery signal sent；

The first response that the third terminal returns is received, first response is used to indicate the institute that the third terminal listens to Whether the signal quality for stating discovery signal is less than predetermined quality threshold value；

If it is described predetermined that first response indicates that the signal quality for the discovery signal that the third terminal listens to is less than Quality threshold then includes the second instruction of first resource to second terminal transmission, and the first resource is to have distributed to D2D resource of the third terminal to receive D2D signal of communication, it is described second instruction be used to indicate the second terminal according to The first resource monitors D2D signal of communication；

Receive the second response that the second terminal returns, second response is used to indicate the second terminal according to described the Whether the signal strength for the D2D signal of communication that one resource listens to is less than predetermined strength threshold value；

If second response received indicates the D2D signal of communication that the second terminal is listened to according to the first resource Signal strength be less than the predetermined strength threshold value, then the first resource is determined as the recoverable resources.

35. according to the method for claim 34, which is characterized in that first sound for receiving the third terminal and returning It answers, comprising:

Receive the third terminal transmission includes the first response frame of first response, and first response frame is described Third terminal is after receiving first instruction, according to first D2D communication frame of first resource transmission.

36. according to the method for claim 33, which is characterized in that described to be determined in the allocated D2D resource The recoverable resources being multiplexed by the first terminal and the second terminal, comprising:

It include the third instruction of Secondary resource to second terminal transmission, the Secondary resource is to have distributed to the 4th terminal To receive the D2D resource of D2D signal of communication；The third instruction is used to indicate the second terminal according to the Secondary resource Monitor D2D signal of communication；

Receive the third response that the second terminal returns, the third response is used to indicate the second terminal according to described the Whether the signal strength for the D2D signal of communication that two resources listen to is less than predetermined strength threshold value；

If the third response instruction second terminal is strong according to the signal for the D2D signal of communication that the Secondary resource listens to Degree is less than the predetermined strength threshold value, then sends the 4th instruction to the 4th terminal, and the 4th instruction is used to indicate described The discovery signal that first terminal described in 4th terminal monitoring is sent；

The 4th response that the 4th terminal returns is received, the 4th response is used to indicate the institute that the 4th terminal monitoring arrives Whether the signal quality for stating discovery signal is less than predetermined quality threshold value；

If the 4th response received indicate the 4th terminal monitoring to the signal quality of the discovery signal be less than The Secondary resource is then determined as the recoverable resources by the predetermined quality threshold value.

37. according to the method for claim 36, which is characterized in that the 4th sound for receiving the 4th terminal and returning It answers, comprising:

Receive the 4th terminal transmission includes the second response frame of the 4th response, and second response frame is described 4th terminal is after receiving the 4th instruction, according to first D2D communication frame of Secondary resource transmission.

38. according to any method of claim 33 to 37, which is characterized in that the method also includes:

If testing result is to distribute the target resource from the D2D resource of the free time in the presence of idle D2D resource.

39. according to any method of claim 33 to 37, which is characterized in that described to be distributed from the recoverable resources Before target resource, the method also includes:

It detects whether in the presence of idle D2D resource；

If testing result is to distribute the target resource from the D2D resource of the free time in the presence of idle D2D resource；

If testing result is that the target resource is insufficient, the step from recoverable resources distribution target resource is executed Suddenly.

40. a kind of resource allocation methods, in first terminal, which is characterized in that the described method includes:

It sends to base station for establishing the request that end-to-end D2D is communicated with second terminal, the request is used to indicate the base station The recoverable resources being multiplexed by the first terminal and the second terminal is determined in the allocated D2D resource, and Target resource is distributed from the recoverable resources, the recoverable resources is the terminal reception for being assigned to receive D2D communication The signal quality for the discovery signal that the first terminal arrived is sent is less than predetermined quality threshold value, and the second terminal connects accordingly The signal strength of the D2D signal of communication received is less than the resource of predetermined strength threshold value；

Receive the target resource that the base station is sent；

41. according to the method for claim 40, which is characterized in that the method also includes:

Periodicity sending finds signal.

42. a kind of resource allocation methods, in second terminal, which is characterized in that the described method includes:

The target resource that base station is sent is received, the target resource receives being used for and institute for first terminal transmission for the base station It states after second terminal establishes the request of end-to-end D2D communication, is determined in the allocated D2D resource by described first eventually The recoverable resources at end and second terminal multiplexing, and the resource distributed from the recoverable resources, the reusable money Source is to be assigned to receive the signal quality of the discovery signal that the first terminal that receives of terminal of D2D communication is sent to be less than Predetermined quality threshold value, and the signal strength of D2D signal of communication that the second terminal receives accordingly is less than predetermined strength threshold value Resource；

43. according to the method for claim 42, which is characterized in that before the target resource for receiving base station transmission, institute State method further include:

Receive the base station transmission includes the second instruction of first resource, and the first resource is to have distributed to third terminal To receive the D2D resource of D2D signal of communication；

D2D signal of communication is monitored according to the first resource；

The second response is sent to the base station according to first testing result, second response is used to indicate according to described the Whether the signal strength for the D2D signal of communication that one resource listens to is less than predetermined strength threshold value.

44. according to the method for claim 42, which is characterized in that before the target resource for receiving base station transmission, institute State method further include:

Receive the base station transmission includes the third instruction of Secondary resource, and the Secondary resource is to have distributed to the 4th terminal To receive the resource of D2D signal of communication；

D2D signal of communication is monitored according to the Secondary resource；

Third response is sent to the base station according to second testing result, and third response is used to indicate according to described the Whether the signal strength for the D2D signal of communication that two resources listen to is less than predetermined strength threshold value.

45. a kind of resource allocation methods, in third terminal, which is characterized in that the described method includes:

Receive base station send first instruction, it is described first instruction be the base station receive first terminal transmission for Second terminal establishes the instruction sent after the request that D2D is communicated；

Monitor the discovery signal that the first terminal is sent；

The first response is sent to the base station according to the third testing result；By the base station in the first response instruction prison When the signal quality for the discovery signal heard is less than predetermined quality threshold value, the transmission of Xiang Suoshu second terminal includes the first money Second instruction in source, and the second response that the second terminal returns is received, and respond instruction described second eventually described second When the signal strength for the D2D signal of communication that end is listened to according to the first resource is less than predetermined strength threshold value, by described first Resource is determined as recoverable resources, target resource is distributed from the recoverable resources, and the target resource is sent to institute First terminal and the second terminal are stated, D2D signal of communication is sent according to the target resource by the first terminal, and by institute It states second terminal and D2D signal of communication is received according to the target resource；

46. according to the method for claim 45, which is characterized in that it is described according to the third testing result to the base station Send the first response, comprising:

Sent to the base station include first response the first response frame, first response frame be receive it is described After first instruction, according to first D2D communication frame of first resource transmission.

47. a kind of resource allocation methods, in the 4th terminal, which is characterized in that the described method includes:

Receive the 4th instruction that base station is sent；It is described 4th instruction be the base station receive first terminal transmission for Second terminal establishes the request of D2D communication, and the transmission of Xiang Suoshu second terminal includes that the third of Secondary resource instructs, described in reception The third response that second terminal returns, and indicate that the second terminal is listened to according to the Secondary resource in third response The instruction that sends when being less than predetermined strength threshold value of the signal strength of D2D signal of communication；The Secondary resource is has distributed to Resource of the 4th terminal to receive D2D signal of communication is stated, the third instruction is used to indicate the second terminal according to Secondary resource monitors D2D signal of communication, and the third response is used to indicate the second terminal and is monitored according to the Secondary resource To the signal strength of D2D signal of communication whether be less than the predetermined strength threshold value；

Monitor the discovery signal that the first terminal is sent；

The 4th response is sent to the base station according to the 4th testing result；4th response is used to indicate the institute listened to Whether the signal quality for stating discovery signal is less than predetermined quality threshold value；It is listened to by the base station in the 4th response instruction When the signal quality of the discovery signal is less than the predetermined quality threshold value, the Secondary resource is determined as recoverable resources, Target resource is distributed from the recoverable resources, and the target resource is sent to the first terminal and described second eventually End sends D2D signal of communication according to the target resource by the first terminal, and by the second terminal according to the target Resource receives D2D signal of communication.

48. according to the method for claim 47, which is characterized in that it is described according to the 4th testing result to the base station Send the 4th response, comprising:

Sending to the base station includes the described 4th the second response frame responded, and second response frame is described receiving After 4th instruction, according to first D2D communication frame of Secondary resource transmission.

49. a kind of resource allocation system, which is characterized in that the system comprises:

Base station as described in claim 1 to 14 is any, the first terminal as described in claim 15 to 18 is any, such as right are wanted Ask 19 to 24 any second terminals and at least one third terminal as described in claim 25 to 28 is any and/or At least one 4th terminal as described in claim 29 to 32 is any.