CN106714238B - A kind of configuration method of uplink scheduling request and base station - Google Patents
A kind of configuration method of uplink scheduling request and base station Download PDFInfo
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- CN106714238B CN106714238B CN201611019080.0A CN201611019080A CN106714238B CN 106714238 B CN106714238 B CN 106714238B CN 201611019080 A CN201611019080 A CN 201611019080A CN 106714238 B CN106714238 B CN 106714238B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/52—Allocation or scheduling criteria for wireless resources based on load
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
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Abstract
The present invention discloses configuration method and the base station of a kind of uplink scheduling request, this method comprises: base station receives the uplink scheduling request that each terminal is sent in same time slot；Base station determines the first downlink subframe of the corresponding radio frames of time slot, and determines the first sub-frame of uplink associated with the first downlink subframe progress uplink authorization and the second sub-frame of uplink in radio frames；Base station determines the available scheduling request resources of the first sub-frame of uplink and the available scheduling request resources of the second sub-frame of uplink；Base station is according to the number of uplink scheduling request, the available scheduling request resources of the available scheduling request resources of the first sub-frame of uplink and the second sub-frame of uplink are allocated to each uplink scheduling request according to setting configuration rule, so that the absolute value of difference is less than given threshold between the first sub-frame of uplink and the available scheduling request resources number of the second sub-frame of uplink after being configured, to solve the problems, such as how according to the uplink scheduling request of multiple users balancedly to distribute available scheduling request resources in sub-frame of uplink.
Description
Technical field
The present invention relates to the configuration methods and base station of the communications field more particularly to a kind of uplink scheduling request.
Background technique
In long term evolution (Long Term Evolution, LTE) system, after terminal access system, to initiate data
Transmission needs to send a uplink scheduling request (Scheduling Request, SR) to base station first, and base station receives on this
After row scheduling request, suitable resource can be just distributed to terminal, so that terminal carries out transmitting uplink data.
Uplink scheduling request is terminal application uplink transmission resource and the information sent, in order to which instruction terminal is suitable at one
Scheduling request is sent in available resource, needs base station in advance and be terminal to carry out the configuration of uplink scheduling request, the result of configuration
It is the scheduling request resources currently available for terminal distribution, and the configuration result is sent to terminal.In this way, terminal being capable of root
Determine that the scheduling request resources of itself are distributed in base station according to configuration result, so as to when needing to carry out transmitting uplink data,
Uplink scheduling request is sent using the scheduling request resources of distribution.
Different from traditional 2G, 3G mobile communication technology, LTE system can support frequency division duplex (Frequency
Division Duplexing, FDD) and two kinds of frame formats of time division duplex (Timing Division Duplexing, TDD), mesh
Preceding tdd frame format includes seven kinds of ratio of uplink subframe to downlink subframe modes, as shown in Figure 1, can be according to different business when practical application
Demand selects different ratio of uplink subframe to downlink subframe.In TDD-LTE agreement, the configuration of ratio of uplink subframe to downlink subframe 0 more adapts to private network city
The use of field, in TDD-LTE ratio of uplink subframe to downlink subframe 0 (according to 3GPP 36.211, when TDD-LTE matches 0,0-9 this 10
In system subframe: subframe 0 and 5 is downlink subframe, subframe 1 and 6 be special subframe, other be sub-frame of uplink), due to being at one
It unites in frame, uplink (UL) subframe is more than downlink (DL) subframe, so, it is specified that for single user's equipment in 3GPP standard agreement
For, a downlink subframe can carry out uplink authorization to two sub-frame of uplink simultaneously.However, for multiple user equipmenies and
How the uplink scheduling request of multiple users, in ratio of uplink subframe to downlink subframe 0, be balancedly assigned in sub-frame of uplink by speech, from
And it is available scheduling request resources in multiple user's mean allocation sub-frame of uplink, and need emphasis to consider in system design
The problem of, for this point, 3GPP standard agreement does not provide solution.
Therefore, the configuration method for needing a kind of uplink scheduling request, how to solve according to the uplink tune of multiple users
Degree request balancedly distributes the problem of available scheduling request resources in sub-frame of uplink.
Summary of the invention
The embodiment of the present invention provides configuration method and the base station of a kind of uplink scheduling request, how to solve according to multiple
The uplink scheduling request of user balancedly distributes the problem of available scheduling request resources in sub-frame of uplink.
The method of the present invention includes a kind of configuration method of uplink scheduling request, this method comprises: base station receives each terminal
In the uplink scheduling request that same time slot is sent；
The base station determines the first downlink subframe of the corresponding radio frames of the time slot, and determine in the radio frames with
First downlink subframe carries out associated first sub-frame of uplink of uplink authorization and the second sub-frame of uplink；
The base station determine first sub-frame of uplink available scheduling request resources and second sub-frame of uplink can
Use scheduling request resources；
The base station is according to the number of the uplink scheduling request, according to setting configuration rule by first sub-frame of uplink
Available scheduling request resources and the available scheduling request resources of second sub-frame of uplink be allocated to each uplink scheduling request,
So that after being configured the available scheduling request resources number of first sub-frame of uplink and second sub-frame of uplink it is available
The absolute value of difference between scheduling request resources number is less than given threshold.
Based on same inventive concept, the embodiment of the present invention further provides a kind of base station, which includes:
Receiving unit, the uplink scheduling request sent for receiving each terminal in same time slot；
Determination unit for determining the first downlink subframe of the corresponding radio frames of the time slot, and is determined described wireless
The first sub-frame of uplink associated with first downlink subframe progress uplink authorization and the second sub-frame of uplink in frame；Described in determination
The available scheduling request resources of the available scheduling request resources of first sub-frame of uplink and second sub-frame of uplink；
Configuration unit will be on described first according to setting configuration rule for the number according to the uplink scheduling request
The available scheduling request resources of the available scheduling request resources of row subframe and second sub-frame of uplink are allocated to each uplink tune
Degree request, so that the available scheduling request resources number of first sub-frame of uplink and second sub-frame of uplink after being configured
Available scheduling request resources number between difference absolute value be less than given threshold.
The embodiment of the present invention is first determined in two sub-frame of uplink to be configured and is remained before collocating uplink scheduling request resources
Remaining available scheduling request resources, then according to the number of uplink scheduling request, by the resources balance in two sub-frame of uplink
Each uplink scheduling request is distributed to, ensures that the available scheduling request of first sub-frame of uplink after being configured in this way
Difference between resource number and the available scheduling request resources number of second sub-frame of uplink is almost nil, so that it may improve
The success rate that uplink scheduling resource is configured avoids the prior art because using and is randomly assigned to cause the problem of distributing failure, on
Row interface-free resources are fully utilized.
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 introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Seven kinds of modes of ratio of uplink subframe to downlink subframe in the TDD-LTE agreement that Fig. 1 provides for the prior art；
Fig. 2 is the uplink authorization mapping graph for the ratio of uplink subframe to downlink subframe 0 that the prior art provides；
Fig. 3 provides a kind of configuration method flow diagram of uplink scheduling request for the embodiment of the present invention；
Fig. 4 provides the scheduling of resource interaction schematic diagram between a kind of terminal and base station for the embodiment of the present invention；
Fig. 5 provides a kind of architecture of base station schematic diagram for the embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that the described embodiments are only some of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
In the embodiment of the present application, terminal can be wireless terminal and be also possible to catv terminal, for example, can for mobile phone,
Computer, tablet computer, personal digital assistant's (English: personal digital assistant, abbreviation: PDA), movement are mutual
Networked devices (English: mobile Internet device, abbreviation: MID), wearable device and E-book reader (English:
E-book reader) etc..
In the embodiment of the present application, term " terminal " includes but is not limited to movement station, fixation or moving user unit, paging
Machine, cellular phone, personal digital assistant (Personal Digital Assistant, abbreviation PDA), computer or any other
The user equipment that can be worked in wireless environments of type.Term " base station " include but is not limited to base station, node, station control,
The interface equipment that can be worked in wireless environments of access point (Access Point, abbreviation AP) or any other type.
In Fig. 1 when ratio of uplink subframe to downlink subframe 0, there are two downlink subframes, two special subframes, six in a radio frames
Sub-frame of uplink, sub-frame of uplink are more than downlink subframe, wherein because can choose out one in special subframe makes as downlink subframe
With in this way, the ratio between sub-frame of uplink and downlink subframe is 2:1, so a downlink subframe, it is associated to carry out uplink authorization
Sub-frame of uplink allow there are two, incidence relation is as shown in Figure 2.It is associated with 0 uplink authorization of downlink subframe in Fig. 2
It is sub-frame of uplink 4 and sub-frame of uplink 7, associated with 1 uplink authorization of special subframe is sub-frame of uplink 7 and sub-frame of uplink 8, under
It is sub-frame of uplink 9 and sub-frame of uplink 2 that 5 uplink authorization of row subframe is associated, it is associated with 6 uplink authorization of special subframe be on
Row subframe 2 and sub-frame of uplink 3 (being shown in Table one).
| Downlink subframe and special subframe | The relevant sub-frame of uplink of uplink authorization |
| Downlink subframe 0 | Sub-frame of uplink 4 and sub-frame of uplink 7 |
| Special subframe 1 | Sub-frame of uplink 7 and sub-frame of uplink 8 |
| Downlink subframe 5 | Sub-frame of uplink 9 and sub-frame of uplink 2 |
| Special subframe 6 | Sub-frame of uplink 2 and sub-frame of uplink 3 |
From the association situation of above-mentioned uplink authorization it is found that downlink subframe 0 and special subframe 1 can distribute sub-frame of uplink 7
On resource, downlink subframe 5 and special subframe 6 can distribute the resource on sub-frame of uplink 2.So being possible to that there are downlinks
Part resource on sub-frame of uplink 7 is distributed to terminal 1 by subframe 0, and special subframe 1 is then again by the money on sub-frame of uplink 7
The problem of terminal 2 is distributed in source, as a result the inadequate resource on sub-frame of uplink 7, leads to distribution failure.
In addition, a downlink subframe carries out the associated sub-frame of uplink permission of uplink authorization, there are two but it is also possible to be one
It is a, such as the uplink scheduling request that terminal is sent to base station, base station can be dispatched on one or more by a DCI0
Row subframe indicates one or more sub-frame of uplink authorization by the UL_INDEX combined field in DCI0, if UL_INDEX is assigned
Value 3 then indicates that sub-frame of uplink 4 and sub-frame of uplink 7 all authorize, if UL_INDEX assignment 2, indicates that sub-frame of uplink 4 authorizes, if
UL_INDEX assignment 1 then indicates that sub-frame of uplink 7 authorizes.
In order to solve the problems, such as that existing uplink authorization has distribution failure, the embodiment of the present invention provides a kind of uplink scheduling
The configuration method flow diagram of request, shown in Figure 3, specifically implementation method includes:
Step S101, base station receive the uplink scheduling request that each terminal is sent in same time slot.
Step S102, the base station determines the first downlink subframe of the corresponding radio frames of the time slot, and determines described
The first sub-frame of uplink associated with first downlink subframe progress uplink authorization and the second sub-frame of uplink in radio frames.
Step S103, the base station determine first sub-frame of uplink available scheduling request resources and second uplink
The available scheduling request resources of subframe.
Step S104, the base station is according to the number of the uplink scheduling request, according to setting configuration rule by described the
The available scheduling request resources of the available scheduling request resources of one sub-frame of uplink and second sub-frame of uplink are allocated on each
Row scheduling request, so as to be configured the available scheduling request resources number and second uplink of first sub-frame of uplink later
The absolute value of difference between the available scheduling request resources number of subframe is less than given threshold.
It should be noted that terminal is to the process of base station requests ascending resource as shown in figure 4, i.e. terminal is according to certain week
Pass through PUCCH (Physical Uplink Control Channel, physical uplink control channel) on phase and subframe position
In control message transmit SR, i.e., when terminal have send data demand when, SR is just set 1 accordingly, when there is no resource request
SR is set to zero, SR to be only responsible for telling whether base station has resource requirement, and how many resource is specifically needed then to be handed over by signaling later
Mutually tell base station.After base station receives SR, UL grant (uplink scheduling authorization) is issued, small part resource is first configured and is used to terminal,
The enough terminals of this part resource upload BSR (buffer state report, caching report), and terminal is sent to base station later
BSR, i.e., the data volume size for telling base station oneself to be transmitted again, after base station receives the BSR that terminal reports, according in the terminal
The comprehensive analysis such as the SRS (souding reference signal, detection reference signal) of report and base station existing resource determine
It is no to give terminal distribution resource, terminal is just allocated resources to if the conditions are met, does not just allocate resources to terminal if the conditions are not met, when
After enough resources are distributed to terminal in base station, terminal can send upstream data in these resources.
In order to solve the problems, such as that the resource that base station is randomly assigned in sub-frame of uplink in the prior art leads to distribution failure, this hair
Base station authorizes the resource in sub-frame of uplink according to setting configuration rule in bright embodiment, to guarantee in two sub-frame of uplink
Resource be uniformly distributed to terminal, the difference between remaining available resource in latter two sub-frame of uplink being configured
Meet certain value range, for example, the difference of the resource of two sub-frame of uplink is zero, it is either 1 or minus 1 etc., that is,
The absolute value of difference is less than given threshold, and given threshold can be zero, 1 with value.Specifically, the base station determines on described first
Between the number of the available scheduling request resources of the number of the available scheduling request resources of row subframe and second sub-frame of uplink
Initial difference；
If the absolute value of the initial difference is less than the given threshold, the configuration rule that set is sub by the first uplink
The available scheduling request resources of frame are allocated toA uplink scheduling request, by the available scheduling request resources of the second sub-frame of uplink
It is allocated to residueA uplink scheduling request, wherein N is the uplink tune that the received each terminal in base station is sent in same time slot
Degree request number.
If the absolute value of the initial difference is not less than the given threshold, the configuration rule that sets is by the first uplink
The available scheduling request resources of subframe are allocated to the uplink scheduling requestBy the second uplink
The available scheduling request resources of frame are allocated to the uplink scheduling requestWherein, N connects for base station
The uplink scheduling request number that each terminal received is sent in same time slot, K1 are the remaining available tune of first sub-frame of uplink
Degree request resource number, K2 are the remaining available scheduling request resources number of second sub-frame of uplink,To round up,To be rounded downwards, λ is configuration coefficients.
It should be noted that can be able to be PUSCH (Physical Uplink Shared with scheduling request resources
Channel, Physical Uplink Shared Channel) or RB (, Resource Block, resource block), the uplink scheduling of a terminal is asked
One PUSCH or multiple of configuration can be corresponded to by asking, and either, the uplink scheduling request of a terminal can correspond to configuration one
RB is multiple.So the possible value of λ is 1,1/2 etc., the difference between K2 and K1 represents the second sub-frame of uplink and the first uplink
The difference of available scheduling request resources between subframe, may be positive, it is also possible to be negative, it is assumed that it is 4 that K1, which subtracts K2 difference, explanation
The remaining available scheduling request resources of first sub-frame of uplink are 4 more than the second sub-frame of uplink, it is assumed that the first sub-frame of uplink residue 19
A RB, the second sub-frame of uplink 15 RB of residue, in addition, λ is equal to 1/2, N 10, then this time just distributing the first sub-frame of uplinkA resource, that is, 7 uplink scheduling requests configuration resource of the first sub-frame of uplink is distributed, in addition,
Distribute the second sub-frame of uplinkA resource, that is, distribute 3 uplink schedulings of the second sub-frame of uplink and ask
Configuration resource is sought, after this sub-distribution, the second sub-frame of uplink 12 RB of residue, the first sub-frame of uplink also 12 RB of residue, therefore
The difference of the available scheduling request resources of residue between second sub-frame of uplink and the first sub-frame of uplink just becomes zero.
Specifically, base station is at the T0 moment, by receiving eventually on the PUCCH of downlink subframe 0 (Physical Downlink Control Channel)
The SR request and BSR that end is sent request to determine that current time user is terminal 1 according to SR.Because carrying out uplink with downlink subframe 0
Associated authorization is sub-frame of uplink 4 and sub-frame of uplink 7, so base station passes through a DCI0 dispatching uplink subframe 7, instruction uplink
Frame 7 authorizes, wherein UL_INDEX in DCI0 is 1, and then base station is by the serial number 7 of sub-frame of uplink and 50 PUSCH of distribution
Corresponding notice is to the terminal, and then terminal sends upstream data by 50 PUSCH on sub-frame of uplink 7 at the uplink moment.
Then, base station is requested, according to SR at the T1 moment by receiving the SR that terminal is sent on the PUCCH of special subframe 1
It requests to determine that current time number of users is 3 terminals (terminal 2, terminal 3 and terminal 4), be awarded because carrying out uplink with special subframe 1
Associated power is sub-frame of uplink 7 and sub-frame of uplink 8, so base station passes through a DCI1 dispatching uplink subframe 7 and sub-frame of uplink 8,
Indicate that sub-frame of uplink 7 and sub-frame of uplink 8 authorize, wherein the UL_INDEX in DCI1 is 3.Because 50 in sub-frame of uplink 7
PUSCH is configured at the T0 downlink moment, according to setting rule, base station by the serial number 7 of sub-frame of uplink and distribution 50
The corresponding notice of a PUSCH (assuming that total number of channels 100 of sub-frame of uplink) is to the terminal 2, by the serial number 8 of sub-frame of uplink and distribution
The corresponding notice of 50 PUSCH to the terminal 3, by the serial number 8 of sub-frame of uplink and the corresponding notice of 50 PUSCH of distribution to should
Terminal 4, then, terminal 2, terminal 3 and terminal 4 send uplink signal on the channel respectively distributed, after being configured so that, on
Resource in row subframe 7 and sub-frame of uplink 8 can be balanced distribute to each terminal, latter two sub-frame of uplink being configured it
Between the difference of resource be zero, both ensure that the utilization rate of interface-free resources, also improved the success rate that base station is terminal distribution resource.
Certainly, it is assumed that at the T2 moment, it is 1 that base station, which receives scheduling request number, and counterpart terminal 5, base station passes through one
DCI0 dispatching uplink subframe 4, instruction sub-frame of uplink 4 authorize, wherein the UL_INDEX in DCI0 is 2, and then base station is sub by uplink
The serial number 4 of frame and the corresponding notice of 50 PUSCH of distribution are to the terminal, and then terminal passes through sub-frame of uplink 4 at the uplink moment
On 50 PUSCH send upstream data, then, at the T3 moment, base station receive scheduling request number be 2,6 He of counterpart terminal
Terminal 7, base station can be by the serial numbers 8 of sub-frame of uplink and the corresponding notice of 50 PUSCH of distribution to the terminal 6, by uplink
The serial number 7 of subframe and 50 PUSCH of distribution correspond to notice to the terminal 7.
After being configured with the resource of sub-frame of uplink according to the method described above, base station updates the available scheduling of the first sub-frame of uplink
Request the available scheduling request resources number of resource number and second sub-frame of uplink, that is to say, that base station record is configured it
The resource of current time remaining sub-frame of uplink afterwards, to consider when carrying out uplink authorization next time as reference value.
Further, for each terminal, generate the terminal the corresponding scheduling request resources of uplink scheduling request and
The corresponding relationship of the serial number of sub-frame of uplink where the corresponding scheduling request resources；The base station passes through the first downlink subframe
PDCCH (Physical Downlink Control Channel) corresponding relationship is sent to each terminal so that the terminal utilize the tune
Degree request resource sends upstream data.
That is, base station notifies the PUSCH of the serial number and distribution that carry out the sub-frame of uplink of uplink authorization to terminal, than
The serial number of sub-frame of uplink 8 and 50 PUSCH this corresponding relationships of distribution are such as sent to terminal 6 by PDCCH, in this way end
End 6 can send upstream data on 50 PUSCH on sub-frame of uplink 8.
Further, if being directed to a terminal, include in corresponding relationship corresponding with the uplink scheduling request of the terminal
The scheduling request resources of different sub-frame of uplink, then the base station is by a PDCCH of the first downlink subframe by the correspondence
Relationship is sent to the terminal.Such as 20 PUSCH in base station on sub-frame of uplink 7 and 30 on sub-frame of uplink 8
PUSCH has been allocated to terminal 6, then base station just only needs to be notified with a PDCCH to terminal 6, thus, it is apparent that can be to avoid
It is notified respectively using two PDCCH to terminal 6, the resource of PDCCH can be saved.
Based on the same technical idea, the embodiment of the present invention also provides a kind of base station, and it is real which can be performed the above method
Apply example.Base station provided in an embodiment of the present invention is as shown in Figure 5, comprising: receiving unit 401, determination unit 402, configuration unit
403, in which:
Receiving unit 401, the uplink scheduling request sent for receiving each terminal in same time slot；
Determination unit 402 for determining the first downlink subframe of the corresponding radio frames of the time slot, and is determined in the nothing
The first sub-frame of uplink associated with first downlink subframe progress uplink authorization and the second sub-frame of uplink in line frame；Determine institute
State the available scheduling request resources of the first sub-frame of uplink and the available scheduling request resources of second sub-frame of uplink；
Configuration unit 403, for the number according to the uplink scheduling request, according to setting configuration rule by described first
The available scheduling request resources of the available scheduling request resources of sub-frame of uplink and second sub-frame of uplink are allocated to each uplink
Scheduling request, so that the available scheduling request resources number and second uplink of first sub-frame of uplink are sub after being configured
The absolute value of difference between the available scheduling request resources number of frame is less than given threshold.
Further, the configuration unit 403 is specifically used for: determining the available scheduling request money of first sub-frame of uplink
Initial difference between the number of the available scheduling request resources of the number in source and second sub-frame of uplink；
If the absolute value of the initial difference is less than the given threshold, the configuration rule that set is sub by the first uplink
The available scheduling request resources of frame are allocated toA uplink scheduling request, by the available scheduling request resources of the second sub-frame of uplink
It is allocated to residueA uplink scheduling request；
If the absolute value of the initial difference is not less than the given threshold, the configuration rule that sets is by the first uplink
The available scheduling request resources of subframe are allocated to the uplink scheduling requestBy the second uplink
The available scheduling request resources of frame are allocated to the uplink scheduling requestWherein, N connects for base station
The uplink scheduling request number that each terminal received is sent in same time slot, K1 are the remaining available tune of first sub-frame of uplink
Degree request resource number, K2 are the remaining available scheduling request resources number of second sub-frame of uplink,To round up,To be rounded downwards, λ is configuration coefficients.
Further, further includes: updating unit 404, for updating the available scheduling request resources of the first sub-frame of uplink
Several and second sub-frame of uplink available scheduling request resources number.
Further, further includes: generation unit 405, for being directed to each terminal, the uplink scheduling for generating the terminal is asked
Seek the corresponding relationship of the serial number of the sub-frame of uplink where corresponding scheduling request resources and the corresponding scheduling request resources；
Transmission unit 406, for by the physical downlink control channel PDCCH of the first downlink subframe by the corresponding relationship
It is sent to each terminal, so that the terminal sends upstream data using the scheduling request resources.
Further, the transmission unit 406 is specifically used for: if being directed to a terminal, the uplink scheduling with the terminal
The scheduling request resources in corresponding corresponding relationship comprising different sub-frame of uplink are requested, then pass through one of the first downlink subframe
The corresponding relationship is sent to the terminal by PDCCH.
In conclusion the embodiment of the present invention before collocating uplink scheduling request resources, first determines on to be configured two
Remaining available scheduling request resources in row subframe will be in two sub-frame of uplink then according to the number of uplink scheduling request
Resources balance distributes to each uplink scheduling request, ensure that in this way be configured after first sub-frame of uplink can
It is almost nil with the difference between scheduling request resources number and the available scheduling request resources number of second sub-frame of uplink,
The success rate that uplink scheduling resource is configured can be improved, the prior art is avoided and is randomly assigned to cause distribution to fail because using
The problem of.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (8)
1. a kind of configuration method of uplink scheduling request, which is characterized in that this method comprises:
Base station receives the uplink scheduling request that each terminal is sent in same time slot；
The base station determines the first downlink subframe of the corresponding radio frames of the time slot, and determine in the radio frames with it is described
First downlink subframe carries out associated first sub-frame of uplink of uplink authorization and the second sub-frame of uplink；
The base station determines the available scheduling request resources of first sub-frame of uplink and the available tune of second sub-frame of uplink
Degree request resource；
The base station determine the available scheduling request resources of first sub-frame of uplink number and second sub-frame of uplink
The initial difference between the number of scheduling request resources can be used；
If the absolute value of the initial difference is less than given threshold, the configuration rule that sets is available by the first sub-frame of uplink
Scheduling request resources are allocated toThe available scheduling request resources of second sub-frame of uplink are allocated to surplus by a uplink scheduling request
It is remainingA uplink scheduling request；
If the absolute value of the initial difference is not less than the given threshold, the configuration rule that sets is by the first sub-frame of uplink
Available scheduling request resources are allocated to the uplink scheduling requestIt can by the second sub-frame of uplink
Scheduling request resources are allocated to the uplink scheduling requestWherein, N is that base station is received
The uplink scheduling request number that each terminal is sent in same time slot, K1 are that the remaining available scheduling of first sub-frame of uplink is asked
Resource number is sought, K2 is the remaining available scheduling request resources number of second sub-frame of uplink,To round up,For
It is rounded downwards, λ is configuration coefficients；
The setting configuration rule is so as to be configured the available scheduling request resources number of first sub-frame of uplink and institute later
The absolute value for stating the difference between the available scheduling request resources number of the second sub-frame of uplink is less than given threshold.
2. the method as described in claim 1, which is characterized in that it is described according to setting configuration rule by first sub-frame of uplink
It is allocated to after each uplink scheduling request with the remaining available scheduling request resources of the second sub-frame of uplink, further includes:
Update the available scheduling request resources number of the first sub-frame of uplink and the available scheduling request money of second sub-frame of uplink
Source number.
3. the method as described in claim 1, which is characterized in that it is described according to setting configuration rule by first sub-frame of uplink
It is allocated to after each uplink scheduling request with the remaining available scheduling request resources of the second sub-frame of uplink, further includes:
For each terminal, generate the terminal the corresponding scheduling request resources of uplink scheduling request and the corresponding scheduling
Request the corresponding relationship of the serial number of the sub-frame of uplink where resource；The base station is controlled by the physical down of the first downlink subframe
The corresponding relationship is sent to each terminal by channel PDCCH, so that the terminal is sent using the scheduling request resources
Row signal.
4. method as claimed in claim 3, which is characterized in that the base station will be described right by the first downlink subframe PDCCH
It should be related to and be sent to each terminal, comprising:
It include different sub-frame of uplink in corresponding relationship corresponding from the uplink scheduling request of the terminal if being directed to a terminal
Scheduling request resources, then the corresponding relationship is sent to described by the base station by a PDCCH of the first downlink subframe
Terminal.
5. a kind of base station, which is characterized in that the base station includes:
Receiving unit, the uplink scheduling request sent for receiving each terminal in same time slot；
Determination unit for determining the first downlink subframe of the corresponding radio frames of the time slot, and determines in the radio frames
The first sub-frame of uplink associated with first downlink subframe progress uplink authorization and the second sub-frame of uplink；Determine described first
The available scheduling request resources of the available scheduling request resources of sub-frame of uplink and second sub-frame of uplink；
Configuration unit, for determining the number and second uplink of the available scheduling request resources of first sub-frame of uplink
Initial difference between the number of the available scheduling request resources of frame；
If the absolute value of the initial difference is less than given threshold, the configuration rule that sets is available by the first sub-frame of uplink
Scheduling request resources are allocated toThe available scheduling request resources of second sub-frame of uplink are allocated to surplus by a uplink scheduling request
It is remainingA uplink scheduling request；
If the absolute value of the initial difference is not less than the given threshold, the configuration rule that sets is by the first sub-frame of uplink
Available scheduling request resources are allocated to the uplink scheduling requestIt can by the second sub-frame of uplink
Scheduling request resources are allocated to the uplink scheduling requestWherein, N is that base station is received
The uplink scheduling request number that each terminal is sent in same time slot, K1 are that the remaining available scheduling of first sub-frame of uplink is asked
Resource number is sought, K2 is the remaining available scheduling request resources number of second sub-frame of uplink,To round up,For
It is rounded downwards, λ is configuration coefficients, and the setting configuration rule is so as to be configured the available scheduling of first sub-frame of uplink later
The absolute value of difference between request resource number and the available scheduling request resources number of second sub-frame of uplink, which is less than, to be set
Determine threshold value.
6. base station as claimed in claim 5, which is characterized in that further include:
Updating unit, for update the first sub-frame of uplink available scheduling request resources number and second sub-frame of uplink can
With scheduling request resources number.
7. base station as claimed in claim 5, which is characterized in that further include:
Generation unit, for be directed to each terminal, generate the terminal the corresponding scheduling request resources of uplink scheduling request and
The corresponding relationship of the serial number of sub-frame of uplink where the corresponding scheduling request resources；
The corresponding relationship is sent to by transmission unit for the physical downlink control channel PDCCH by the first downlink subframe
Each terminal, so that the terminal sends uplink signal using the scheduling request resources.
8. base station as claimed in claim 5, which is characterized in that the transmission unit is specifically used for:
It include different sub-frame of uplink in corresponding relationship corresponding from the uplink scheduling request of the terminal if being directed to a terminal
Scheduling request resources, then the corresponding relationship is sent to by the terminal by a PDCCH of the first downlink subframe.
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| CN101640905B (en) * | 2008-07-31 | 2012-07-25 | 电信科学技术研究院 | Method for allocating uplink dispatch request |
| CN103873183A (en) * | 2012-12-07 | 2014-06-18 | 电信科学技术研究院 | Data transmission method and device |
| CN103874206A (en) * | 2012-12-13 | 2014-06-18 | 中兴通讯股份有限公司 | Resource allocation method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101640905B (en) * | 2008-07-31 | 2012-07-25 | 电信科学技术研究院 | Method for allocating uplink dispatch request |
| CN103873183A (en) * | 2012-12-07 | 2014-06-18 | 电信科学技术研究院 | Data transmission method and device |
| CN103874206A (en) * | 2012-12-13 | 2014-06-18 | 中兴通讯股份有限公司 | Resource allocation method and device |
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