WO2018081930A1

WO2018081930A1 - Information transmission method, resource allocation method, and device

Info

Publication number: WO2018081930A1
Application number: PCT/CN2016/104269
Authority: WO
Inventors: 刘航; 曹振臻; 肖潇; 李明超
Original assignee: 华为技术有限公司
Priority date: 2016-11-01
Filing date: 2016-11-01
Publication date: 2018-05-11

Abstract

An information transmission method, a resource allocation method and a device provided in embodiments of the present invention relate to the technical field of communications, for use in reducing power consumption of terminal devices while conflicts are avoided among the terminal devices. The method comprises: a terminal device selects a target resource pool among candidate resource pools, the candidate resource pools comprising a first type of resource pools based on a random selection mode and a second type of resource pools based on a listening selection mode; if the target resource pool is of the first type of resource pools, the terminal device performs information transmission according to the random selection mode and by using a resource in the first type of resource pools; and if the target resource pool is of the second type of resource pools, the terminal device performs information transmission according to the listening selection mode and by using a resource in the second type of resource pools.

Description

Information transmission method, resource configuration method and device

Technical field

The present invention relates to the field of communications technologies, and in particular, to an information transmission method, a resource configuration method, and a device.

Background technique

The information exchange between the vehicle and the outside world (English: vehicle-to-X, referred to as V2X) refers to vehicles and vehicles (English: vehicle-to-vehicle, referred to as V2V), vehicles and infrastructure (English: vehicle-to- Infrastructure, referred to as V2I), and communication between vehicles and pedestrians (English: vehicle-to-pedestrian, V2P). V2X communication can achieve road safety, improve traffic efficiency, and provide users with rich streaming services.

Currently, in a V2X-based communication scenario, the terminal device may use the resource pool configured by the base station for the terminal device or the resource in the pre-configured resource pool of the terminal device to perform information transmission. The terminal device may be a vehicle, an infrastructure, a pedestrian handheld device, or the like. When performing information transmission, the terminal device may randomly select some resources from the resource pool and then use the selected resources to perform information transmission. This method is called a random selection mode. However, when the random selection method is used, if a plurality of terminal devices select the same resource, the information transmission between the plurality of terminal devices may conflict. Furthermore, in order to solve the conflict problem, a listening selection method is proposed, in which the terminal device listens to the resources in the resource pool for a period of time, obtains unused resources in the resource pool, and then uses the unused resources. Select some or all of the resources to transfer information.

However, when the listening selection mode is used, the terminal device needs to consume a large amount of power when listening, especially for the terminal device with less energy storage such as a battery, which greatly increases the energy consumption of the terminal device. This reduces the user experience.

Summary of the invention

The information transmission method, the resource configuration method, and the device provided by the embodiments of the present invention reduce the energy consumption of the terminal device and improve the user body while avoiding conflicts between the terminal devices. Test.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

In a first aspect, an information transmission method is provided. The method includes: a terminal device selects a target resource pool from a candidate resource pool; wherein the candidate resource pool includes a first type resource pool based on a random selection manner and a listening selection method. The second type of resource pool; if the target resource pool is the first type of resource pool, the terminal device uses the resources in the first type of resource pool for information transmission according to a random selection manner; if the target resource pool is the second type of resource pool, the terminal device follows The listening selection method uses the resources in the second type of resource pool for information transmission. In the foregoing technical solution, the terminal device may select the target resource pool from the first type resource pool or the second type resource pool, and perform information transmission by using the corresponding resource selection manner, thereby avoiding conflicts between the terminal devices and reducing The energy consumption of small terminal devices improves the user experience.

In a possible implementation manner, the terminal device selects the target resource pool from the candidate resource pool, including: if the terminal device is the first type of terminal device, the terminal device selects the first type resource pool from the candidate resources as the target resource pool. Or, if the terminal device is the second type of terminal device, the terminal device selects the first type resource pool or the second type resource pool as the target resource pool from the candidate resources; or the terminal device receives the indication information sent by the base station, and according to The indication information is used to select a first type of resource pool or a second type of resource pool as a target resource pool, where the indication information is used to indicate a resource selection manner of the terminal device. In the foregoing optional technical solution, the terminal device may select the target resource pool according to its own type or indication information, thereby reducing the consumption energy of the first type of terminal device and providing a user experience while avoiding collision.

The terminal devices of the first type and the second type are divided according to the resource selection manner; the terminal device that does not support the selection mode is not supported, that is, the terminal device that only supports the random selection mode is divided into the terminal devices of the first type; The terminal that listens to the selection mode is divided into the terminal devices of the second type.

In a possible implementation manner, the method further includes: the terminal device sends the device parameter information and/or the resource request information to the base station, where the device parameter information includes a power supply type, a device capability, and a device residual energy information of the terminal device, One or more of the resource selection manners of the device; the resource request information includes indication information that the terminal device performs the V2X service or the P2X service; the device parameter information and/or the resource request information is used to indicate that the base station sends the indication information for the terminal device; The device capability includes one or more of the following capabilities: the terminal device The ability to simultaneously transmit and/or receive side links over multiple carrier combinations is supported based on the ability of the random selection or based on the listening selection. In the foregoing optional technical solution, the base station may send different indication information for different terminal devices according to device parameter information and/or resource request information of different terminal devices, thereby further reducing the probability of the terminal device colliding.

In a possible implementation manner, before the terminal device selects the target resource pool from the candidate resource pool, the method further includes: the terminal device receiving the configuration information sent by the base station, where the configuration information includes information about the candidate resource pool and resource indication information; The indication information is used to indicate the resource selection manner of the first type resource pool and the second type resource pool. In the foregoing optional technical solution, the base station may configure a candidate resource pool and a resource selection manner of different resource pools for the terminal device by sending configuration information to the terminal device.

In a possible implementation, the configuration information further includes: information indicating that the first type of resource pool supports the second type of terminal device usage; the terminal device selects the target resource pool from the candidate resource pool, including: if the terminal device is A second type of terminal device, the terminal device selects a first type of resource pool from the candidate resources as the target resource pool.

In a possible implementation, the method further includes: if the GNSS signal of the terminal device is lost or the GNSS signal of the terminal device is unreliable, the terminal device determines the synchronization reference time, and uses the target resource pool according to the determined synchronization reference time. Information transfer.

The determining, by the terminal device, the synchronization reference time includes: determining, by the terminal device, the synchronization reference time according to the synchronization time of the base station and the deviation time. Optional: synchronization reference time = base station synchronization time + deviation time; or synchronization reference time = base station synchronization time - deviation time; wherein the synchronization reference time can be used as a time reference for communication by the terminal device; the deviation time refers to the base station The difference between the synchronization time and the GNSS time, the deviation time is configured by the base station or pre-configured by the terminal device.

In a possible implementation, the method further includes: if the location information of the terminal device is lost, the terminal device selects the target resource pool from the special resource pool, and uses the target resource pool to perform information according to the resource selection manner corresponding to the target resource pool. And the special resource pool includes a resource pool based on a random selection manner and/or a resource pool based on a listening selection manner; or, if the location information of the terminal device is lost, the terminal device randomly selects resources corresponding to one or more regions. The pool is the target resource pool, and the target resource pool is used for information transmission according to the resource selection manner corresponding to the target resource pool; or, if the location information of the terminal device is lost, the terminal device selects all the areas. One or more resource pools with the least congestion in the resource pool corresponding to the domain are the target resource pools, and the target resource pools are used for information transmission according to the resource selection manner corresponding to the target resource pools. In the above optional technical solution, a problem that a large number of terminal devices collide with the same resources when the location information is lost in the same area or the other preset conditions are met is avoided.

A second aspect provides a resource configuration method, where the method includes: the base station sends configuration information to the terminal device, where the configuration information includes information about the candidate resource pool and resource indication information, where the candidate resource pool includes the first type resource pool based on the random selection mode. And the second type of resource pool based on the listening selection mode, the resource indication information is used to indicate the resource selection manner of the first type resource pool and the second type resource pool, so that the terminal device selects the target resource pool from the candidate resource pool, and When the target resource pool is the first type of resource pool, the information in the first type of resource pool is used for information transmission according to the random selection mode. When the target resource pool is the second type of resource pool, the second type of resource is used according to the interception selection mode. Resources in the pool are used for information transfer.

In a possible implementation manner, the base station sends the configuration information to the terminal device, where the base station sends the configuration information to the terminal device by using a broadcast message or a radio resource control message.

In a possible implementation manner, the configuration information further includes information used to indicate that the first type of resource pool supports the second type of terminal device usage.

In a possible implementation, the method further includes: receiving, by the base station, device parameter information and/or resource request information sent by the terminal device, where the device parameter information includes a power supply type, a device capability, a device residual energy information, and a device of the terminal device. One or more of the preferred resource selection methods; the resource request information includes indication information that the terminal device performs the V2X service or the P2X service. The base station sends the indication information to the terminal device according to the device parameter information and/or the resource request information, so that the terminal device selects the first type resource pool or the second type resource pool as the target resource pool from the candidate resources according to the indication information; The information is used to indicate the resource selection mode of the terminal device.

In a possible implementation manner, the method further includes: sending, by the base station, the information that includes the special resource pool to the terminal device, so that the terminal device selects the target resource pool from the special resource pool when the location information is lost, and according to the target resource pool. The corresponding resource selection manner uses the target resource pool for information transmission; wherein the special resource pool includes a resource pool based on a random selection manner and/or a resource pool based on a listening selection manner, and the information of the special resource pool is used to indicate the special resource pool and The resource selection method corresponding to the special resource pool.

A third aspect provides a terminal device, where the terminal device includes: a selecting unit, configured to select a target resource pool from a candidate resource pool; wherein the candidate resource pool includes a first type resource pool based on a random selection manner and based on a listening selection The second type of resource pool of the mode; the sending unit is configured to use the resource in the first type resource pool to perform information transmission according to a random selection manner if the target resource pool is the first type resource pool; if the target resource pool is the second type resource The pool uses the resources in the second type of resource pool for information transmission according to the interception selection mode.

In a possible implementation, the selecting unit is specifically configured to: if the terminal device is the terminal device of the first type, select the first resource pool from the candidate resources as the target resource pool; or if the terminal device is the second type The terminal device selects the second type resource pool as the target resource pool from the candidate resources; or, when receiving the indication information sent by the base station, selects the first type resource pool or the second type resource from the candidate resources according to the indication information. The pool serves as the target resource pool.

In a possible implementation manner, the terminal devices of the first type and the second type are divided according to the resource selection manner; wherein the terminal that listens to the selection mode is not supported, that is, the terminal that supports only the random selection mode is divided into the first type terminal. The terminal supporting the listening selection mode is divided into the second type terminal.

In a possible implementation manner, the sending unit is further configured to: send the device parameter information and/or the resource request information to the base station, where the device parameter information includes a power supply type, a device capability, a device residual energy information, and a device of the terminal device. One or more of the resource selection methods; the resource request information includes indication information that the terminal device performs the V2X service or the P2X service; the device parameter information and/or the resource request information is used to indicate that the base station sends the indication information for the terminal device; The device capability includes one or more of the following capabilities: the terminal device supports the ability to simultaneously transmit and/or receive the side link on multiple carrier combinations based on the ability of the random selection mode or the interception selection mode. .

In a possible implementation, the terminal device further includes: a receiving unit, configured to receive configuration information sent by the base station, where the configuration information includes information about the candidate resource pool and resource indication information; and the resource indication information is used to indicate the first type of resource pool. And the resource selection method of the second type of resource pool.

In a possible implementation, the configuration information further includes information for indicating that the first type of resource pool supports the use of the second type of terminal device; the selecting unit is specifically configured to: if the terminal device is the second type of terminal device, The first type of resource pool is selected as the target resource pool among the candidate resources.

In a possible implementation, the terminal device further includes: a determining unit, if the terminal is used When the GNSS signal of the device is lost or the GNSS signal of the terminal device is unreliable, the synchronization reference time is determined; the sending unit is further configured to use the target resource pool for information transmission according to the determined synchronization reference time.

In a possible implementation manner, the determining unit is specifically configured to: determine a synchronization reference time according to the base station synchronization time and the deviation time. Optional: synchronization reference time = base station synchronization time + deviation time; or, synchronization reference time = base station synchronization time - deviation time; wherein, the synchronization reference time can be used as a time reference for communication by the terminal device; the deviation time refers to the base station synchronization time The difference between the time and the GNSS time, the deviation time is configured by the base station or pre-configured by the terminal device.

In a possible implementation manner, the selecting unit is further configured to: if the location information of the terminal device is lost, select a target resource pool from the special resource pool; wherein the special resource pool includes a resource pool based on a random selection manner and/or based on The resource pool of the selection mode is used; or the selection unit is further configured to randomly select a resource pool corresponding to one or more areas as the target resource pool if the location information of the terminal device is lost; or, the selection unit is further used for The location information of the terminal device is lost, and one or more resource pools with the smallest channel busy ratio (CBR) in the resource pool corresponding to all areas are selected as target resource pools; the sending unit is also used to target resources. The resource selection method corresponding to the pool uses the target resource pool for information transmission.

In a fourth aspect, a base station is provided, where the base station includes: a sending unit, configured to send configuration information to the terminal device, where the configuration information includes information about the candidate resource pool and resource indication information; the resource indication information is used to indicate the first type of resource pool And the resource selection mode of the second type of resource pool, the candidate resource pool includes a first type resource pool based on a random selection manner and a second type resource pool based on the interception selection manner, so that the terminal device selects the target resource pool from the candidate resource pool. And when the target resource pool is the first type of resource pool, the information in the first type of resource pool is used for information transmission according to a random selection manner, and when the target resource pool is the second type of resource pool, the usage is selected according to the interception selection mode. The resources in the second type of resource pool transmit information.

In a possible implementation manner, the sending unit is specifically configured to: send the configuration information to the terminal device by using a broadcast message or a radio resource control message.

In a possible implementation manner, the configuration information further includes information used to indicate that the second type of resource pool supports the use of the first type of terminal device.

In a possible implementation manner, the base station further includes: a receiving unit, configured to receive device parameter information and/or resource request information sent by the terminal device, where the device parameter information includes the terminal device One or more of the power supply type, the device capability, the remaining energy information of the device, and the resource selection mode of the device; the resource request information includes indication information of the V2X service or the P2X service of the terminal device. The sending unit is further configured to send the indication information to the terminal device according to the device parameter information and/or the resource request information, so that the terminal device selects the first resource pool or the second resource pool as the target resource from the candidate resources according to the indication information. a pool; wherein the indication information is used to indicate a resource selection manner of the terminal device.

In a possible implementation, the sending unit is further configured to: send the information that includes the special resource pool to the terminal device, so that the terminal device selects the target resource pool from the special resource pool when the location information is lost, and according to the target resource pool. The corresponding resource selection manner uses the target resource pool for information transmission; wherein the special resource pool includes a resource pool based on a random selection manner and/or a resource pool based on a listening selection manner, and the information of the special resource pool is used to indicate the special resource pool and The resource selection method corresponding to the special resource pool.

In a fifth aspect, a terminal device is provided. The terminal device includes a memory, a processor, a bus, and a communication interface. The memory stores code and data, and the processor and the memory are connected through a bus. The processor runs the code in the memory to cause the terminal device to execute the above. The information transmission method provided by the first aspect or any of the possible implementation manners of the first aspect.

In a sixth aspect, a base station is provided. The base station includes a memory, a processor, a bus, and a communication interface. The memory stores code and data, and the processor and the memory are connected by a bus. The processor runs the code in the memory to cause the base station to perform the second aspect. Or the resource configuration method provided by any of the possible implementations of the second aspect.

The seventh aspect provides a communication system, where the communication system includes a terminal device and a base station, where the terminal device is the third aspect, or any possible implementation manner of the third aspect, or the terminal device provided by the fifth aspect And/or the base station is the fourth aspect, any possible implementation of the fourth aspect, or the base station provided by the sixth aspect.

According to an eighth aspect, a computer readable storage medium is provided, where computer executed instructions are stored, and when the at least one processor of the device executes the computer to execute an instruction, the device performs the first aspect or the first aspect. The information transmission method provided by any one of the possible implementation manners, or the resource configuration method provided by the foregoing second aspect or any possible implementation manner of the second aspect.

In a ninth aspect, a computer program product is provided, the computer program product comprising a computer Executing instructions stored in a computer readable storage medium; at least one processor of the device can read the computer executable instructions from the computer readable storage medium, the at least one processor executing the computer to execute the instructions such that the device implements the The information transmission method provided by any one of the possible implementation manners of the first aspect, or the resource configuration method provided by the foregoing second aspect or any possible implementation manner of the second aspect.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a schematic structural diagram of a communication system according to an embodiment of the present invention;

2 is a schematic structural diagram of a base station according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure;

FIG. 4 is a schematic flowchart diagram of an information transmission method according to an embodiment of the present disclosure;

FIG. 5 is a schematic flowchart diagram of another information transmission method according to an embodiment of the present disclosure;

FIG. 6 is a schematic flowchart diagram of still another information transmission method according to an embodiment of the present invention;

FIG. 7 is a schematic flowchart diagram of another information transmission method according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of another terminal device according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of still another terminal device according to an embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram of another base station according to an embodiment of the present disclosure;

FIG. 13 is a schematic structural diagram of still another base station according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

FIG. 1 is a schematic structural diagram of a communication system according to an embodiment of the present invention. Referring to FIG. 1, the communication system includes a base station 101, a first terminal device 102, and a second terminal device 103. The first terminal device 102 is a vehicle, and the second terminal device 103 can be a vehicle, a user's handheld device, etc., and the second terminal device 103 is taken as an example in FIG.

In the embodiment of the present invention, the base station 101 can communicate with the first terminal device 102 and the second terminal device 103, for example, by radio resource control (English: radio resource control, RRC for short) or system information block. :system information block, referred to as: SIB) for communication. The first terminal device 102 can communicate with the second terminal device 103, and can directly communicate through the device to the device (lateral link communication), or can be indirectly through the device to the base station and then to the device. Communication.

2 is a schematic structural diagram of a base station according to an embodiment of the present invention. Referring to FIG. 2, the base station includes a baseband subsystem, a middle radio frequency subsystem, an antenna feed subsystem, and some supporting structures (for example, a whole subsystem). The baseband subsystem is used to implement operation and maintenance of the entire base station, implement signaling processing, radio resource principle, and transmit interface to a packet core network (English: evolved packet core, referred to as EPC), to implement physical layer and medium access control. :medium access control, referred to as: MAC) layer, L3 signaling, operation and maintenance master control function; medium RF subsystem realizes conversion between baseband signal, intermediate frequency signal and radio frequency signal, realizes demodulation and transmission of LTE wireless receiving signal Modulation and power amplification; the antenna feed subsystem includes antennas and feeders connected to the base station radio frequency module and antennas and feeders of the GRS receiving card for receiving and transmitting wireless air interface signals; the whole subsystem is a baseband subsystem and The support part of the mid-RF subsystem provides structural, power and environmental monitoring functions.

FIG. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present invention. The terminal device includes a bus, a processor, a memory, an input/output interface, and a communication interface.

A bus is a circuit that connects the elements described and implements transmission between these elements. For example, the processor receives commands from other elements over the bus, decrypts the received commands, and performs calculations or data processing based on the decrypted commands.

The processor is a control center of the terminal device, and connects various parts of the entire terminal device by using various interfaces and lines, performs various functions by running or executing a software program module stored in the memory, and calling data stored in the memory. The data is processed to perform overall monitoring of the terminal device. Optionally, the processor may include one or more processors; preferably, processing The application processor and the modem processor can be integrated, wherein the application processor mainly processes an operating system, a user interface, an application, etc., and the modem processor mainly processes wireless communication.

The memory may include program modules such as a kernel, a middleware, an application program interface (API), and an application. The program module may be composed of software, firmware or hardware, or at least two of them. The memory may mainly include a storage program area and an storage data area, wherein the storage program area may store an operating system, an application required for at least one function, and the like; the storage data area may store data created according to usage of the terminal device, and the like. Further, the memory may include a high speed random access memory, and may also include a nonvolatile memory or the like.

The input and output interfaces provide an interface between the processor and the peripheral interface module to forward commands or data entered by the user through the peripheral interface module. The above peripheral interface module may be a sensor, a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to, a home button, a volume button, a start button, and a lock button.

The communication interface connects the terminal device with other terminal devices and base stations. Optionally, the communication interface may be a radio frequency circuit including, but not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. The communication interface can be connected to other external terminal devices or base stations by wirelessly connecting to the network, so that communication between the terminal device and other terminal devices and the base station can be realized through the network. In an exemplary embodiment, the communication interface receives broadcast signals or broadcast associated information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication interface further includes a WiFi module, a Bluetooth module, an infrared module, etc. to facilitate short range communication.

Although not shown, the terminal device may further include a display device, a sensor module, an audio module, and the like, and details are not described herein again.

The term "and/or" in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship. A plurality in this document refers to two or more.

FIG. 4 is a schematic flowchart of an information transmission method according to an embodiment of the present invention. Referring to FIG. 4, the method includes the following steps.

Step 201: The terminal device selects a target resource pool from the candidate resource pool; wherein, the candidate resource The source pool includes a first type resource pool based on a random selection manner and a second type resource pool based on a listening selection manner.

The terminal device may be the first terminal device or the second terminal device in FIG. 1 above, and the terminal device may be a vehicle.

In addition, the first type of resource pool includes at least one resource pool, and the random selection manner means that the terminal device can randomly select some resources in the resource pool from at least one resource pool included in the first type resource pool. The second type of resource pool includes at least one resource pool. The interception selection mode means that the terminal device can listen to the resources in the at least one resource pool included in the second type of resource pool, so that at least one resource pool is not occupied. resource of.

When the terminal device selects the target resource pool from the candidate resource pool, the terminal device may select the target resource pool from the first type resource pool or the second type resource pool randomly or according to a preset selection rule.

Optionally, when the terminal device selects the target resource pool from the candidate resource pool, the terminal device may be selected according to the type of the terminal device, where the terminal device is the first type of terminal device, and the first class is selected from the candidate resources. The resource pool is used as the target resource pool. If the terminal device is the second type of terminal device, the first resource pool or the second resource pool is selected as the target resource pool.

The terminal devices of the first type and the second type are divided according to the resource selection manner; the terminal that listens to the selection mode is not supported, that is, the terminal that supports only the random selection mode is divided into the first type terminal; and the listening selection mode is supported. The terminal is divided into a second type of terminal.

In addition, when the terminal device selects the target resource pool from the candidate resource pool, the target resource pool may be selected from the candidate resource pool according to the indication information of the base station, where the terminal device receives the indication information sent by the base station, if the indication information The terminal device may use the first type of resource pool as the target resource pool, in order to indicate that the terminal device selects the first type of resource pool or selects in a random selection manner. If the indication information is used to indicate that the terminal device selects the second type of resource pool or selects in a listening selection manner, the terminal device may use the second type resource pool as the target resource pool. If the indication information does not limit the target resource pool or the selection mode of the terminal device, the terminal device may use the first type resource pool as the target resource pool or the second type resource pool as the target resource pool.

Further, before the terminal device receives the indication information sent by the base station, the method may further include: the terminal device sending the device parameter information and/or the resource request information to the base station. Device parameter information The device includes one or more of a power supply type, a device capability, a device residual energy information, and a resource selection mode of the device. The resource request information includes indication information that the terminal device performs a V2X service or a P2X service. When the base station receives the device parameter information and/or the resource request information, the base station may send the indication information to the terminal device, so that the terminal device selects the target resource pool from the candidate resource pool according to the indication information.

The power supply type of the terminal device may be a power supply type of a device with less energy storage such as a battery, or the power may be mainly from a power supply type of a device such as a vehicle engine.

The device capabilities of the terminal device may include one or more of the following capabilities: the terminal device supports the ability to randomly select resources or based on the selected resource selection, the terminal device simultaneously transmits and/or receives the lateral direction on multiple carrier combinations. The ability of the link.

The device residual energy information may be the device residual energy value and/or the remaining energy as a percentage of the total energy.

The resource selection methods that the device itself tends to adopt include random selection based and listening selection based.

Step 202: If the target resource pool is the first type of resource pool, the terminal device uses the resources in the first type resource pool to perform information transmission according to a random selection manner; if the target resource pool is the second type resource pool, the terminal device selects according to the interception. The mode uses the resources in the second type of resource pool for information transmission.

When the target resource pool selected by the terminal device is the first type of resource pool, the terminal device may randomly select some resources from the first type of resource pool, and use the selected partial resources to perform information transmission with the base station or other terminal devices. Optionally, when the first type resource pool includes at least one resource pool, the terminal device may randomly select one resource pool from the at least one resource pool, or select one resource pool from the at least one resource pool in a preset order, and then Select some resources randomly from the selected resource pool.

When the target resource pool selected by the terminal device is the second type of resource pool, the terminal device can listen to the resources in the second type of resource pool, obtain unoccupied resources in the second type of resource pool, and select unoccupied resources. Some or all of the resources of the resource are transmitted with the base station or other terminal equipment. Optionally, when the second type of resource pool includes at least one resource pool, and the terminal device listens to the second type of resource pool, the terminal device may select one of the second type of resource pools randomly or in a preset order. Multiple resource pools to listen to get the one or more Unoccupied resources in a resource pool. Alternatively, the terminal device listens to each of the at least one resource pool included in the second type resource pool, and obtains an unoccupied resource in each resource pool. After that, the resources for information transmission are selected from the unoccupied resources.

In FIG. 4, the information transmission between the terminal device and the base station is taken as an example.

Further, referring to FIG. 5, before step 201, the method further includes step 203.

Step 203: The base station sends configuration information to the terminal device, where the configuration information includes the information of the candidate resource pool and the resource indication information, where the resource indication information is used to indicate the resource selection manner of the first type resource pool and the second type resource pool.

The base station may send the configuration information to the terminal device by using a broadcast message or by using a radio resource control message RRC. The information of the candidate resource pool may refer to frequency domain information and/or time domain information of the first type resource pool and the second type resource pool included in the candidate resource pool. For example, the frequency domain information may be a frequency domain range of a physical resource block included in the first type resource pool and the second type resource pool, or a subcarrier position and width, and a subcarrier spacing. The time domain information may be corresponding subframe information or the like. The resource indication information is used to indicate that the resource selection mode of the first type resource pool is a random selection mode, and the second type resource pool is selected by a listening selection mode.

In addition, the base station may also determine the candidate resource pool. Specifically, the base station selects the first type resource pool and the second type resource pool randomly or according to certain rules from the frequency domain resources. Then, the base station may send the information of the candidate resource pool to the terminal device by using a broadcast message or a radio resource control message or the like. When the terminal device receives the information of the candidate resource pool, the terminal device may perform information transmission according to the method described in steps 201-202 above.

Further, the configuration information further includes information for indicating that the first type of resource pool supports the use of the second type of terminal device, so that the terminal device selects the target resource pool from the candidate resource pool in step 201, including: if the terminal device is the first The terminal device of the second type, the terminal device selects the first type resource pool from the candidate resources as the target resource pool.

Specifically, when the first type of resource pool supports the second type of terminal device, the second type of terminal device may also select the first type of resource pool as the target resource pool. Thereafter, the second type of terminal device can perform information transmission through resources in the first type of resource pool according to a random selection manner.

Further, referring to FIG. 6, the method further includes step 204. Step 204 and step 201 and step 202 are in no particular order.

Step 204: If the global navigation satellite system (GNSS) signal of the terminal device is lost or the GNSS signal of the terminal device is unreliable, the terminal device determines the synchronization reference time and uses according to the determined synchronization reference time. The target resource pool performs information transmission.

Optionally, the terminal device determines a synchronization reference time according to the synchronization time and the deviation time of the base station; wherein the synchronization reference time can be used as a time reference for the terminal device to communicate; the deviation time is the difference between the base station synchronization time and the GNSS time of the base station. The deviation time is configured by the base station or pre-configured by the terminal device.

Further, referring to FIG. 7, the method further includes step 205. Step 204 and step 202 are in no particular order, and steps 205 and 204 are methods in which the terminal device selects a target resource pool and performs information transmission in two different situations.

Step 205: If the location information of the terminal device is lost, the terminal device selects the target resource pool from the special resource pool, or randomly selects the resource pool corresponding to one or more regions as the target resource pool, or selects the resource pool corresponding to all the regions. One or more resource pools with the smallest degree of congestion (English: channel busy ratio, CBR for short) are the target resource pools, and the target resource pools are used for information transmission according to the resource selection manner corresponding to the target resource pools.

The information of the special resource pool is used to indicate the resource selection mode corresponding to the special resource pool and the special resource pool. The information of the special resource pool may be sent by the base station to the terminal device, and the base station may send the information including the special resource pool to the terminal device by using the broadcast message or the RRC message to send the configuration information to the terminal device, or may be pre-configured by the terminal device side. The resource selection method on the resource pool and resource pool. In FIG. 7, the base station transmits information including a special resource pool to the terminal device through the configuration information as an example.

In addition, the special resource pool includes a resource pool based on a random selection method and/or a resource pool based on a listening selection manner. The special resource pool is a resource pool for selecting information transmission resources when the location information of the terminal device is lost. The frequency domain location of the special resource pool is different from the frequency domain location of the candidate resource pool. The special resource pool may include at least one resource pool based on a random selection, and/or at least one resource pool based on a listening selection.

After the location information of the terminal device is lost and the target resource pool is selected from the special resource pool, if the target resource pool selected by the terminal device is a resource pool based on a random selection mode, the terminal device may use a random selection method according to a random selection manner. Resources in the resource pool Information transfer. If the selected target resource pool is a resource pool based on the interception selection mode, the terminal device may use the resources in the resource pool based on the interception selection mode to perform information transmission according to the interception selection mode.

Optionally, if the location information of the terminal device is lost, and the special resource pool does not exist, the terminal device may randomly select a resource pool corresponding to one or more regions as the target resource pool, and according to the resource corresponding to the target resource pool. The selection mode uses the target resource pool for information transmission. The multiple areas may be the zones defined in the 3GPP, and the system configures a corresponding resource pool for each area, and the adjacent two areas are configured with different resource pools, so that the resources corresponding to the multiple areas are A pool is a resource pool that the system configures for each zone.

Optionally, if the location information of the terminal device is lost, and the special resource pool does not exist, the terminal device may measure the resource pool corresponding to all the regions, and obtain the congestion degree of each resource pool, where the congestion degree may be the channel busy rate. The CBR measures, selects one or more resource pools with the least congestion in the resource pool corresponding to all areas as the target resource pool, and uses the target resource pool to perform information transmission according to the resource selection manner corresponding to the target resource pool. The multiple areas may be the zones defined in the 3GPP, and the system configures a corresponding resource pool for each area, and the adjacent two areas are configured with different resource pools, so that the resources corresponding to the multiple areas are A pool is a resource pool that the system configures for each zone.

Optionally, the resource selection manner used on the resource pool corresponding to multiple areas may be a random resource selection or a listening resource selection. Optionally, the resource selection manner used on the resource pool corresponding to multiple areas may be pre-configured.

In the information transmission method provided by the embodiment of the present invention, the terminal device selects the target resource pool from the first type resource pool or the second type resource pool included in the candidate resource pool, and uses the selected resource pool based on the corresponding resource selection manner. The resources are transmitted for information, so that different terminal devices transmit information on different resources, thereby reducing the power consumption of the terminal device and improving the user experience while avoiding conflicts between the terminal devices. In addition, the terminal device can also select the resource for information transmission from the special resource pool if the location information is lost, and avoid the problem that the information transmission conflict is caused by using the same resource pool when a large number of terminal devices lose the location information in the same area.

The solution provided by the embodiment of the present invention is mainly introduced from the perspective of interaction between the network elements. It can be understood that each network element, such as, for example, a terminal device and a base station, is The above functions, which include corresponding hardware structures and/or software modules for performing various functions. Those skilled in the art will readily appreciate that the present invention can be implemented in a combination of hardware or hardware and computer software in conjunction with the network elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

The embodiment of the present invention may divide a function module into a terminal device or the like according to the foregoing method example. For example, each function module may be divided according to each function, or two or more functions may be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present invention is schematic, and is only a logical function division, and the actual implementation may have another division manner.

FIG. 8 is a schematic diagram showing a possible structure of a terminal device involved in the foregoing embodiment. The terminal device 300 includes a selection unit 301 and a sending unit 302. The selecting unit 301 is configured to perform the process of selecting the target resource pool in step 201 in FIG. 4, FIG. 6 and the step 204 of selecting the target resource pool in FIG. 7; the sending unit 302 is configured to execute The process of transmitting information in step 202 in FIG. 4, the process of transmitting information in step 204 in FIG. 6, and the process of transmitting information in step 205 in FIG. Further, the terminal device 300 may further include a receiving unit 303 and a determining unit 304. The receiving unit 303 is configured to perform a process of receiving configuration information sent by the base station through step 203 in FIG. 5-6; the determining unit 304 is configured to determine a synchronization reference time according to the base station synchronization time and the deviation time. All the related content of the steps involved in the foregoing method embodiments may be referred to the functional description of the corresponding functional modules, and details are not described herein again.

In the case of employing an integrated unit, FIG. 9 shows a possible logical structure diagram of the terminal device 310 involved in the above embodiment. The terminal device 310 includes a processing module 312 and a communication module 313. The processing module 312 is configured to perform control management on the actions of the terminal device. For example, the processing module 312 is configured to perform the process 201 in FIG. 4-7, and the step 204 in FIG. 6 is used to determine the synchronization reference according to the base station synchronization time and the deviation time. The process of time, the process for selecting a target resource pool from a pool of special resources in step 205 of Figure 7, and/or for the purposes described herein Other processes of technology. The communication module 313 is used for communication with a base station or other terminal device. The terminal device 310 may further include a storage module 311 for storing program codes and data of the terminal device.

The processing module 312 can be a processor or a controller, such as a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, Hardware components or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, combinations of digital signal processors and microprocessors, and the like. The communication module 313 can be a transceiver, a transceiver circuit, a communication interface, or the like. The storage module 311 can be a memory.

When the processing module 312 is a processor, the communication module 313 is a communication interface, and the storage module 311 is a memory, the terminal device according to the embodiment of the present invention may be the device shown in FIG.

Referring to FIG. 10, which is a hardware structure of a terminal device, the terminal device 320 includes a processor 322, a communication interface 323, a memory 321, and a bus 324. The communication interface 323, the processor 322, and the memory 321 are connected to each other through a bus 324. The bus 324 may be a peripheral component interconnect standard (English: peripheral component interconnect, PCI for short) or an extended industry standard structure (English: extended industry) Standard architecture, referred to as: EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 10, but it does not mean that there is only one bus or one type of bus.

FIG. 11 is a schematic diagram showing a possible structure of a base station involved in the foregoing embodiment, where the base station 400 includes a transmitting unit 401 and a receiving unit 402. The sending unit 401 is configured to perform the process of transmitting the indication information to the terminal device in step 203 in FIG. 5-7, and the receiving unit 402 is configured to perform the process of receiving the device parameter information sent by the terminal device. All the related content of the steps involved in the foregoing method embodiments may be referred to the functional description of the corresponding functional modules, and details are not described herein again.

In the case of employing an integrated unit, FIG. 12 shows a possible logical structure diagram of the base station 410 involved in the above embodiment. The base station 410 includes a processing module 412 and a communication module 413. The processing module 412 is configured to control management of actions of the base station, for example, the processing module 412 is configured to perform processes for determining candidate resource pools and determining special resource pools, and/or other processes for the techniques described herein. The communication module 413 is used for communication with the terminal device. Base station The 410 may also include a storage module 411 for storing program codes and data of the base station.

The processing module 412 can be a processor or a controller, such as a central processing unit, a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a transistor logic device, Hardware components or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, combinations of digital signal processors and microprocessors, and the like. The communication module 413 can be a transceiver, a transceiver circuit, a communication interface, or the like. The storage module 411 can be a memory.

When the processing module 412 is a processor, the communication module 413 is a communication interface, and the storage module 411 is a memory, the base station involved in the embodiment of the present invention may be the device shown in FIG.

Referring to FIG. 13, an example of a hardware structure of a base station includes a processor 422, a communication interface 423, a memory 421, and a bus 424. The communication interface 423, the processor 422, and the memory 421 are connected to each other through a bus 424. The bus 424 may be a PCI bus or an EISA bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 13, but it does not mean that there is only one bus or one type of bus.

In another embodiment of the present invention, a computer readable storage medium is stored, where computer execution instructions are stored, and when at least one processor of the device executes the computer to execute an instruction, the device executes the above figure. 4 - The steps of the terminal device or the steps of the base station in the information transmission method shown in FIG.

In another embodiment of the present invention, a computer program product is provided, the computer program product comprising computer executable instructions stored in a computer readable storage medium; at least one processor of the device may be The read storage medium reads the computer execution instructions, and the at least one processor executes the computer execution instructions to cause the device to perform the steps of the terminal device or the base station in the information transmission method shown in FIG. 4 to FIG. 7 above.

In another embodiment of the present invention, there is also provided a communication system comprising a terminal device and a base station, the terminal device being the terminal device shown in any of Figures 8-10, and/or the base station is Figure 11- The base station shown in any of FIG. The terminal device is configured to perform the steps of the terminal device in the information transmission method shown in FIG. 4 to FIG. 7; and the base station is configured to perform the steps of the base station in the information transmission method shown in FIG. 4 to FIG. 7 above.

The embodiment of the present invention provides that, in a communication system, the base station sends the information of the candidate resource pool to the terminal device, so that the terminal device can select the target resource pool from the candidate resource pool according to the type of the terminal or the indication information sent by the base station, and The corresponding resource selection mode uses the resources in the selected resource pool for information transmission, so that different terminal devices transmit information on different resources, thereby reducing the consumption of the terminal device while avoiding conflicts between the terminal devices. power.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments are modified, or the equivalents of the technical features are replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

An information transmission method, characterized in that the method comprises:

The terminal device selects a target resource pool from the candidate resource pool; wherein the candidate resource pool includes a first type resource pool based on a random selection manner and a second type resource pool based on a listening selection manner;

If the target resource pool is the first type of resource pool, the terminal device uses the resources in the first type resource pool to perform information transmission according to the random selection manner;

If the target resource pool is the second type of resource pool, the terminal device uses the resources in the second type resource pool to perform information transmission according to the interception selection manner.
The method according to claim 1, wherein the selecting, by the terminal device, the target resource pool from the candidate resource pool comprises:

If the terminal device only supports the random selection mode, the terminal device is a terminal device of a first type, and the terminal device selects the first resource pool from the candidate resources as the target resource pool. ;or,

If the terminal device supports the interception selection mode, the terminal device is a second type of terminal device, and the terminal device selects the first type resource pool or the second class from the candidate resources. a resource pool as the target resource pool; or,

The terminal device receives the indication information sent by the base station, and selects the first type resource pool or the second type resource pool from the candidate resources as the target resource pool according to the indication information; The indication information is used to indicate a resource selection manner of the terminal device.
The method according to claim 1 or 2, wherein the method further comprises:

The terminal device sends device parameter information and/or resource request information to the base station, where the device parameter information includes a power supply type, a device capability, a device residual energy information, and a device preference resource selection manner of the terminal device. The resource request information includes indication information that the terminal device performs V2X service or P2X service; the device parameter information and/or resource request information is used to indicate that the base station is the terminal device Sending the indication information;

The device capability includes one or more of the following capabilities: the terminal device supports the capability based on the random selection mode or based on the interception selection mode, and the terminal device simultaneously performs multiple carrier combinations. The ability to send and/or receive side links.
The method according to any one of claims 1-3, wherein before the selecting, by the terminal device, the target resource pool from the candidate resource pool, the method further includes:

The terminal device receives the configuration information sent by the base station, where the configuration information includes information about the candidate resource pool and resource indication information, where the resource indication information is used to indicate the first type resource pool and the second type resource The way the pool is selected.
The method according to claim 4, wherein the configuration information further comprises information for indicating that the first type of resource pool supports the use of the second type of terminal device;

The terminal device selects a target resource pool from the candidate resource pool, including:

If the terminal device is a second type of terminal device, the terminal device selects the first type of resource pool from the candidate resources as the target resource pool.
The method of claim 1 further comprising:

If the GNSS signal of the terminal device is lost or the GNSS signal of the terminal device is unreliable, the terminal device determines a synchronization reference time, and uses the target resource pool to perform information transmission according to the synchronization reference time.
The method according to claim 6, wherein the terminal device determines a synchronization reference time, including:

The terminal device determines a synchronization reference time according to the synchronization time and the deviation time of the base station; the deviation time is configured by the base station or pre-configured by the terminal device.
The method of claim 1 further comprising:

If the location information of the terminal device is lost, the terminal device selects a special resource pool as the target resource pool, or randomly selects a resource pool corresponding to one or more regions as the target resource pool, or selects a resource pool corresponding to all the regions. One or more resource pools with the least degree of congestion are the target resource pools, and the target resource pools are used for information transmission according to the resource selection manner corresponding to the target resource pools;

The special resource pool includes a resource pool based on a random selection manner and/or a resource pool based on a listening selection manner, and is configured by the base station or pre-configured by the terminal device.
A resource configuration method, the method comprising:

The base station sends the configuration information to the terminal device, where the configuration information includes the information of the candidate resource pool and the resource indication information; the candidate resource pool includes the first type resource pool based on the random selection manner and the second type resource based on the interception selection mode. a pool, the resource indication information is used to indicate The resource selection manner of the first type of resource pool and the second type of resource pool, so that the terminal device selects a target resource pool from the candidate resource pool, and when the target resource pool is the first type resource pool, And using the resources in the first type of resource pool to perform information transmission according to the random selection manner. When the target resource pool is the second type resource pool, use the second according to the interception selection manner. The resources in the class resource pool are used for information transmission.
The method according to claim 9, wherein the sending, by the base station, the configuration information to the terminal device comprises:

The base station sends configuration information to the terminal device by using a broadcast message or a radio resource control message.
The method according to claim 9, wherein the configuration information further comprises information for indicating that the first type of resource pool supports the use of the second type of terminal device.
The method of any of claims 9-11, wherein the method further comprises:

Receiving, by the base station, device parameter information and/or resource request information sent by the terminal device, where the device parameter information includes a power supply type, a device capability, a device residual energy information, and a device preference resource selection manner of the terminal device. One or more of the resource request information includes indication information that the terminal device performs a V2X service or a P2X service;

The base station sends the indication information to the terminal device according to the device parameter information and/or the resource request information, so that the terminal device selects the first type resource pool from the candidate resources according to the indication information. Or the second type of resource pool is used as the target resource pool; wherein the indication information is used to indicate a resource selection manner of the terminal device.
The method of claim 9 wherein the method further comprises:

Sending, by the base station, the information of the special resource pool to the terminal device, so that the terminal device selects a target resource pool from the special resource pool when the location information is lost, and selects a resource according to the target resource pool. The method uses the target resource pool for information transmission;

The special resource pool includes a resource pool based on a random selection manner and/or a resource pool based on a listening selection manner, where the information of the special resource pool is used to indicate that the special resource pool corresponds to the special resource pool. The way resources are selected.
A terminal device, the terminal device includes:

a selecting unit, configured to select a target resource pool from the candidate resource pool; wherein the candidate resource The source pool includes a first type resource pool based on a random selection manner and a second type resource pool based on a listening selection manner;

a sending unit, configured to: if the target resource pool is the first type of resource pool, use the resources in the first type of resource pool to perform information transmission according to the random selection manner; if the target resource pool is the The second type of resource pool uses the resources in the second type of resource pool to perform information transmission according to the interception selection manner.
The terminal device according to claim 14, wherein the selecting unit is specifically configured to:

If the terminal device only supports the random selection mode, the terminal device is a terminal device of the first type, and the first resource pool is selected as the target resource pool from the candidate resources; or

If the terminal device supports the interception selection mode, the terminal device is a second type of terminal device, and the first type resource pool or the second type resource pool is selected from the candidate resources as a Target resource pool; or,

When receiving the indication information sent by the base station, selecting, according to the indication information, the first type resource pool or the second type resource pool as the target resource pool from the candidate resources; wherein the indication The information is used to indicate a resource selection manner of the terminal device.
The terminal device according to claim 14 or 15, wherein the sending unit is further configured to:

Transmitting, by the base station, device parameter information and/or resource request information, where the device parameter information includes one of a power supply type, a device capability, a device residual energy information, and a device preference resource selection manner of the terminal device. Or a plurality of; the resource request information includes indication information that the terminal device performs a V2X service or a P2X service; the device parameter information and/or resource request information is used to indicate that the base station sends the Indication information;

The device capability includes one or more of the following capabilities: the terminal device supports the capability based on the random selection mode or based on the interception selection mode, and the terminal device simultaneously performs multiple carrier combinations. The ability to send and/or receive side links.
The terminal device according to any one of claims 14 to 16, wherein the terminal device further comprises:

a receiving unit, configured to receive configuration information sent by the base station, where the configuration information includes the waiting information And the resource indication information is used to indicate the resource selection manner of the first type resource pool and the second type resource pool.
The terminal device according to claim 17, wherein the configuration information further includes information for indicating that the first type of resource pool supports use by the second type of terminal device;

The selection unit is specifically configured to:

And if the terminal device is a second type of terminal device, selecting the first type resource pool from the candidate resources as the target resource pool.
The terminal device according to claim 14, wherein the terminal device further comprises:

a determining unit, configured to determine a synchronization reference time if the GNSS signal of the terminal device is lost or the GNSS signal of the terminal device is unreliable;

The sending unit is further configured to use the target resource pool to perform information transmission according to the synchronization reference time.
The terminal device according to claim 19, wherein the determining unit is specifically configured to:

The synchronization reference time is determined according to the synchronization time and the deviation time of the base station; the deviation time is configured by the base station or pre-configured by the terminal device.
The terminal device according to claim 14, wherein

The selecting unit is further configured to: if the location information of the terminal device is lost, select a target resource pool from a special resource pool; wherein the special resource pool includes a resource pool based on a random selection manner and/or based on a listening selection Method resource pool;

Or the selecting unit is further configured to: if the location information of the terminal device is lost, randomly select a resource pool corresponding to one or more regions as a target resource pool;

Alternatively, the selecting unit is further configured to: if the location information of the terminal device is lost, select one or more resource pools with the least congestion level in the resource pool corresponding to all the regions as the target resource pool;

The sending unit is further configured to use the target resource pool to perform information transmission according to a resource selection manner corresponding to the target resource pool.
A base station, the base station includes:

a sending unit, configured to send configuration information to the terminal device, where the configuration information includes Selecting information of the resource pool and resource indication information, where the candidate resource pool includes a first type resource pool based on a random selection manner and a second type resource pool based on a listening selection manner, where the resource indication information is used to indicate the first The resource selection mode of the resource pool of the first type and the resource pool of the second type of resource pool, the terminal device selects a target resource pool from the candidate resource pool, and when the target resource pool is the first resource pool, The random selection mode uses the resources in the first type of resource pool to perform information transmission. When the target resource pool is the second type resource pool, the second type resource is used according to the interception selection mode. Resources in the pool are used for information transfer.
The base station according to claim 22, wherein the sending unit is specifically configured to:

The configuration information is sent to the terminal device through a broadcast message or a radio resource control message.
The base station according to claim 22, wherein the configuration information further comprises information for indicating that the first type of resource pool supports use by the second type of terminal device.
The base station according to any one of claims 22 to 24, wherein the base station further comprises:

a receiving unit, configured to receive device parameter information and/or resource request information sent by the terminal device, where the device parameter information includes a power supply type, a device capability, a device residual energy information, and a device preference resource selection of the terminal device One or more of the modes; the resource request information includes indication information that the terminal device performs a V2X service or a P2X service;

The sending unit is further configured to send the indication information to the terminal device according to the device parameter information and/or the resource request information, so that the terminal device selects the candidate resource from the candidate resources according to the indication information. The first type of resource pool or the second type of resource pool is used as the target resource pool; wherein the indication information is used to indicate a resource selection manner of the terminal device.
The base station according to claim 22, wherein the sending unit is further configured to:

Sending information including a special resource pool to the terminal device, so that when the location information is lost, the terminal device selects a target resource pool from the special resource pool, and uses the resource selection manner corresponding to the target resource pool. Decoding the target resource pool for information transmission;

The special resource pool includes a resource pool based on a random selection manner and/or a resource pool based on a listening selection manner, where the information of the special resource pool is used to indicate that the special resource pool corresponds to the special resource pool. The way resources are selected.
A terminal device, comprising: a memory, a processor, a bus, and a communication interface, wherein the memory stores code and data, and the processor is connected to the memory through the bus, the processing The code in the memory running memory causes the terminal device to perform the information transmission method according to any one of the preceding claims 1-8.
A base station, comprising: a memory, a processor, a bus, and a communication interface, wherein the memory stores code and data, the processor is connected to the memory through the bus, and the processor operates The code in the memory causes the base station to perform the resource configuration method of any of the preceding claims 9-13.