WO2021190392A1

WO2021190392A1 - Sidelink communication method and apparatus

Info

Publication number: WO2021190392A1
Application number: PCT/CN2021/081488
Authority: WO
Inventors: 黄海宁; 黎超
Original assignee: 华为技术有限公司
Priority date: 2020-03-25
Filing date: 2021-03-18
Publication date: 2021-09-30
Also published as: CN113453317B; CN113453317A

Abstract

A sidelink communication method and apparatus for improving sidelink communication quality. The method is applied to a terminal. The method comprises: a terminal obtains configuration information, the configuration information being used for configuring a DRX parameter used by the terminal in sidelink communication, for example, the configuration information being used for indicating a first parameter used in DRX by the terminal, and the configuration information using a resource pool as granularity, i.e., a resource pool corresponding to a set of DRX parameters, for example, the configuration information corresponding to a first resource pool; and the terminal performs sidelink communication according to the configuration information.

Description

Side link communication method and device

Cross-references to related applications

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on March 25, 2020, the application number is 202010218457.5, and the application name is "a side link communication method and device", the entire content of which is incorporated by reference In this application.

Technical field

The embodiments of the present application relate to the field of communication technologies, and in particular, to a side link communication method and device.

Background technique

The sidelink (SL) is the communication between the terminal and the terminal. In the side link, the sender sends information to the receiver through the physical layer sidelink control channel (PSCCH). The PSCCH is used to carry sidelink control information (SCI), and the SCI contains the solution. It modulates and decodes the parameters required by the physical layer sidelink shared channel (physical sidelink shared channel, PSSCH), and the PSSCH is used to carry data. The receiving end obtains the parameters required for demodulation and decoding of the PSSCH by blindly detecting the PSCCH sent by the transmitting end, and then receives the PSSCH.

In the prior art, the terminal needs to always monitor or blindly check the PSCCH sent by other terminals, which brings a lot of power consumption to the terminal.

Summary of the invention

The embodiments of the present application provide a side-link communication method and device, which are used to reduce the power consumption of a terminal receiving side-link messages and improve the quality of side-link communication.

In a first aspect, a method for sidelink communication is provided. The method may be executed by a terminal, denoted as the first terminal, or may be executed by a device in the first terminal. The method can be implemented by the following steps: the first terminal obtains first configuration information, where the first configuration information is used to configure discontinuous reception (DRX) parameters used by the first terminal in sidelink communication, For example, the first configuration information is used to indicate the first parameter used by the first terminal for DRX, the first configuration information uses a resource pool as the granularity, and the first configuration information corresponds to the first resource pool; The first terminal performs side link communication according to the first configuration information. For example, the first terminal discontinuously performs sidelink communication according to the DRX parameter indicated by the first configuration information.

In the embodiment of the present application, since the first configuration information is based on the resource pool as the granularity, the DRX parameters configured for terminals working on a resource pool are the same, that is, the receiving time and non-receiving time in a period are aligned. Therefore, terminals working in a resource pool can perform side-link communication within the same receiving time, avoiding the problem of inability to communicate due to the lack of intersection of the receiving time of the two terminals, thereby improving the quality of side-link communication , It realizes the application of DRX technology for side-link communication and reduces the power consumption of the terminal. In addition, configuring DRX parameters through network equipment eliminates the need to configure DRX parameters between terminals, which saves signaling waste caused by configuring DRX parameters between terminals.

In a possible design, there may be multiple DRX parameters. For example, the DRX parameter may include the DRX cycle, referred to as cycle. The first parameter includes a first period, and one of the first periods includes a first receiving time and a first non-receiving time; the first terminal receives a side uplink message at the first receiving time; the The first terminal stops receiving the side link message during the first non-receiving time. In this way, the first terminal can discontinuously receive side-link messages, and by stopping receiving side-link messages during the first non-receiving time, there is no need to monitor control signaling sent by other terminals, which can effectively reduce the function of the terminal. Consumption.

Optionally, at the first receiving time, the first terminal may also send a side link message. The first receiving time in a cycle can be used to receive and send side uplink messages. The first terminal randomly selects resources to send the side link message during the first non-receiving time. Since during the first non-receiving time, the first terminal cannot monitor the PSCCH of other terminals and cannot select resources through sensing, but the method of randomly selecting resources does not need to monitor the PSCCH of other terminals, so the first terminal can Resources are randomly selected within the first non-receiving time, and the side link message is sent on the randomly selected resources.

In a possible design, the first configuration information is also used to indicate at least one second parameter used by the first terminal for DRX. After the first terminal receives the first configuration information, it determines that the first configuration information includes the first parameter and at least one second parameter, which parameter the first terminal will use for sidelink communication. The embodiments of this application propose some Optional plan.

An optional solution is: the first terminal obtains first indication information; wherein, the first indication information is used to instruct the first terminal to perform side-by-side operation according to the first parameter or the second parameter Link communication.

Another optional solution is that the first terminal sends second indication information to the second terminal; wherein, the second indication information is used to instruct the first terminal according to the first parameter or the second parameter Perform side link communication. In this way, the first terminal can select appropriate parameters according to its own service type, service characteristics, and power saving requirements.

In a possible design, the first parameter corresponding to the first resource pool has multiple values. For example, the multiple values of the first parameter include a first value and at least one second value. As for which value the terminal selects for sidelink communication, the embodiments of the present application propose some optional solutions.

In an optional solution, the first terminal obtains third indication information, and the third indication information is used to instruct the first terminal to perform a side link according to the first value or the second value. Communication.

In another optional solution, the first terminal sends fourth indication information to the second terminal, where the fourth indication information is used to instruct the first terminal to use the first value or the second value Perform side link communication. In this way, the first terminal can select appropriate parameter values according to its own service type or service characteristics.

Another optional solution is that the first terminal sends fifth indication information to the second terminal, where the fifth indication information is used to instruct the second terminal to perform side-by-side operations according to the first parameter or the second parameter. Line communication. In this way, the first terminal can select appropriate parameters according to its own service type or service characteristics.

Another optional solution is that the first terminal sends sixth indication information to the second terminal, where the sixth indication information is used to instruct the second terminal according to the first value or the second value Perform side link communication. In this way, the first terminal can select appropriate parameter values according to its own service type or service characteristics.

In a possible design, the first terminal may also obtain second configuration information. The second configuration information is similar to the first configuration information and is also based on the resource pool, so that the first terminal receives two sets of configuration information. , Each set corresponds to a resource pool. The second configuration information is used to indicate a third parameter used by the first terminal for DRX, and the second configuration information corresponds to a second resource pool. The first terminal may perform sidelink communication in combination with the first parameter and the third parameter.

For example, the third parameter includes a second period, and one of the second periods includes a second receiving time and a second non-receiving time; the first terminal performs processing according to the first configuration information and the second configuration information. Side link communication; wherein, the first terminal receives the side link message within the common time of the first receiving time and the second receiving time. This way can be recorded as way 0.

Regarding how the first terminal performs side-link transmission when receiving two sets of configuration information, there may be several possible implementation manners as follows.

Manner 1: The first terminal receives the side link message in the first resource pool within the common time of the first receiving time and the second non-receiving time, and receives the side link message in the second resource pool. Stop receiving side link messages.

Manner 2: The first terminal stops receiving and/or stops sending side uplink messages within the common time of the first receiving time and the second non-receiving time.

Manner 3: The first terminal receives and/or sends a side link message within a common time of the first receiving time and the second non-receiving time.

Mode 4, the first terminal receives instruction information from other terminals or network devices, and determines which method to use for sidelink communication according to the instruction information, where the content of the instruction can be any of the above methods 0 to 3 Or multiple.

In a possible design, the first terminal obtains fifth indication information, where the fifth indication information is used to instruct the first terminal to enable DRX, or the fifth indication information is used to indicate the first terminal The terminal disables DRX. Enabling can also be referred to as activation, and de-enabling can also be referred to as deactivation. In this way, it is possible to align when the first terminal uses DRX, and when DRX is disabled, the first terminal can monitor the PSCCH in the existing manner.

In a possible design, the first configuration information includes any one of the following: radio resource control RRC message, media access control MAC signaling, media access layer control unit MAC CE, system information block SIB or master information block MIB.

The above-mentioned first indication information, second indication information, third indication information, fourth indication information or fifth indication information may be side control information SCI. The SCI is sent by the terminal to the terminal and can be carried in the PSCCH. Each of the foregoing indication information may occupy reserved bits or bits in the SCI.

In a second aspect, a communication device is provided. The communication device may be a terminal, denoted as a first terminal, or a device in the first terminal (for example, a chip, or a chip system, or a circuit), or may be able to communicate with the first terminal. A device used by a terminal matching. In one design, the communication device may include modules that perform one-to-one correspondence of the methods/operations/steps/actions described in the first aspect. The modules may be hardware circuits, software, or hardware circuits combined with software. accomplish. In one design, the communication device may include a processing module and a communication module. The processing module is used to call the communication module to perform the function of receiving and/or sending. Illustratively:

The processing module is configured to obtain first configuration information, where the first configuration information is used to configure discontinuous reception (DRX) parameters used by the first terminal in sidelink communication, for example, the first configuration The information is used to indicate the first parameter used by the first terminal for DRX, the first configuration information uses a resource pool as the granularity, and the first configuration information corresponds to the first resource pool; the communication module is used to The first configuration information performs side link communication. For example, the communication module is configured to perform side-link communication non-continuously according to the DRX parameter indicated by the first configuration information.

In the embodiment of the present application, since the first configuration information is based on the resource pool as the granularity, the DRX parameters configured for terminals working on a resource pool are the same, that is, the receiving time and non-receiving time in a period are aligned. Therefore, terminals working in a resource pool can perform side-link communication within the same receiving time, avoiding the problem of inability to communicate due to the lack of intersection of the receiving time of the two terminals, thereby improving the quality of side-link communication , It realizes the application of DRX technology for side-link communication and reduces the power consumption of the terminal. In addition, configuring DRX parameters through network equipment eliminates the need to configure DRX parameters between terminals, which saves the signaling waste of configuring DRX parameters between terminals.

In a possible design, there may be multiple DRX parameters. For example, the DRX parameter may include the DRX cycle, referred to as cycle. The first parameter includes a first period, and one of the first periods includes a first receiving time and a first non-receiving time; the first terminal receives a side uplink message at the first receiving time; the The first terminal stops receiving the side link message during the first non-receiving time. In this way, the first terminal can discontinuously receive side-link messages. By stopping receiving side-link messages within the first non-receiving time, it is not necessary to monitor control signaling and data sent by other terminals, which can effectively reduce the number of terminals. Power consumption.

Optionally, the communication module is further configured to send the side link message at the first receiving time. The first receiving time in a cycle can be used to start receiving and sending side-link messages. The communication module is further configured to randomly select resources to send the side link message at the first non-receiving time. Since during the first non-receiving time, the first terminal cannot monitor the PSCCH of other terminals and cannot select resources through sensing, but the method of randomly selecting resources does not need to monitor the PSCCH of other terminals, so the first terminal can Resources are randomly selected within the first non-receiving time, and the side link message is sent on the randomly selected resources.

In a possible design, the first configuration information is also used to indicate at least one second parameter used by the first terminal for DRX. After the communication module receives the first configuration information, the processing module determines that the first configuration information includes the first parameter and at least one second parameter, which parameter will be used for sidelink communication. This embodiment of the application proposes some options Plan.

An optional solution is: the communication module is also used to obtain first indication information; wherein, the first indication information is used to instruct the first terminal to perform operations according to the first parameter or the second parameter Side link communication.

Another optional solution is that the communication module is further configured to send second indication information to the second terminal; wherein, the second indication information is used to instruct the first terminal according to the first parameter or The second parameter is for side-link communication. In this way, the first terminal can select appropriate parameters according to its own service type or service characteristics.

In a possible design, the first parameter corresponding to the first resource pool has multiple values. For example, the multiple values of the first parameter include a first value and at least one second value. The processing module performs side-link communication according to which value is selected by the communication module, and some optional solutions are proposed in the embodiments of the present application.

In an optional solution, the communication module is used to obtain third indication information, and the third indication information is used to instruct the first terminal to perform side-chaining according to the first value or the second value. Road communication.

In another optional solution, the communication module is used to send fourth indication information to the second terminal, and the fourth indication information is used to instruct the first terminal to perform the Value for side link communication. In this way, the first terminal can select appropriate parameter values according to its own service type or service characteristics.

In a possible design, the communication module is also used to obtain second configuration information. The second configuration information is similar to the first configuration information and is also based on the resource pool, so that the first terminal receives two sets of configuration information. , Each set corresponds to a resource pool. The second configuration information is used to indicate a third parameter used by the first terminal for DRX, and the second configuration information corresponds to a second resource pool. The first terminal may perform sidelink communication in combination with the first parameter and the second parameter.

For example, the third parameter includes a second period, and one of the second periods includes a second receiving time and a second non-receiving time; the communication module is configured to perform according to the first configuration information and the second configuration information Perform side-link communication; wherein, the communication module is configured to receive a side-link message within the common time of the first receiving time and the second receiving time. This method can be marked as method 0.

When the communication module receives two sets of configuration information, how to perform side-link transmission when the parameters are different, there are several possible implementation methods as follows.

Manner 1: The communication module is configured to receive a side link message in the first resource pool within the common time of the first receiving time and the second non-receiving time, and in the second resource Stop receiving side link messages in the pool.

Manner 2: The communication module is configured to stop receiving and/or stop sending side uplink messages within a common time of the first receiving time and the second non-receiving time.

Manner 3: The communication module is configured to receive and/or send a side link message within a common time of the first receiving time and the second non-receiving time.

Manner 4: The communication module is used to receive instruction information from other terminals or network devices, and the processing module is used to determine which method to use for sidelink communication according to the instruction information, and the instruction method can be the above methods 0 to Any one or more of Mode 3.

In a possible design, the communication module is used to obtain fifth indication information, the fifth indication information is used to instruct the first terminal to enable DRX, or the fifth indication information is used to indicate the first terminal A terminal disables DRX. Enabling can also be referred to as activation, and de-enabling can also be referred to as deactivation. In this way, it is possible to align when the first terminal uses DRX, and when DRX is disabled, the first terminal can monitor the PSCCH in the existing manner.

The above-mentioned first indication information, second indication information, third indication information, fourth indication information or fifth indication information may be side control information SCI. The SCI is sent by the terminal to the terminal and can be carried in the PSCCH. Each of the foregoing indication information may occupy reserved bits in the SCI.

In a third aspect, a communication device is provided. The communication device includes a communication interface and a processor, and the communication interface is used for communication between the communication device and other devices, such as the transmission and reception of data or signals. Exemplarily, the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface, and other devices may be network devices or other terminals. The processor is used to call a set of programs, instructions or data to execute the method described in the first aspect. The communication device may also include a memory for storing programs, instructions or data called by the processor. The memory is coupled with the processor, and when the processor executes instructions or data stored in the memory, the method described in the first aspect can be implemented.

In a fourth aspect, a side link communication method is provided, which can be executed by a network device, and the method includes the following steps: generating first configuration information, sending the first configuration information to a first terminal, and A piece of configuration information is used to indicate a first parameter used by the first terminal for discontinuous reception of DRX, and the first configuration information uses a resource pool as a granularity. For the explanation, function, or introduction of the first configuration information, reference may be made to the first aspect, and no repeated description will be made here.

In a possible design, the first configuration information is also used to indicate at least one second parameter used by the first terminal for DRX; the first parameter and the second parameter are the same type of parameters, for example, the first parameter Both the second parameter and the second parameter are periods, so the first parameter may be the first period, and the second parameter may be the second period, and the first period and the second period are different.

Of course, the first parameter and the second parameter may be other types of parameters.

When the first configuration information indicates the first parameter and at least one second parameter, the network device may also indicate which parameter the terminal uses for sidelink communication. For example, the network device instructs the terminal to use the first parameter for measurement link communication, or instructs the terminal to use the second parameter for measurement link communication.

In a possible design, the first parameter includes a first value and at least one second value. For example, the first parameter is the period, the first value may be the first period, and the second value is the second period, and the first period and the second period are different. Of course, the first parameter may be other types of parameters.

When the first parameter includes a first value and at least one second value, the network device may also instruct the terminal to use which value to perform sidelink communication. For example, the network device instructs the terminal to use the first value for measurement link communication, or instructs the terminal to use the second value for measurement link communication.

In a possible design, the network device sends instruction information to the first terminal, where the instruction information is used to instruct the first terminal to activate DRX, or the instruction information is used to instruct the first terminal to deactivate DRX . When the terminal is not instructed to activate DRX, the terminal can adopt a conventional receiving method, which can achieve a compatible effect with the conventional method. Optionally, the network device may also instruct the first terminal to activate or deactivate DRX through the first configuration information.

Optionally, the network device may also configure two sets of configuration information for the first terminal, for example, sending the first configuration information and at least one piece of second configuration information to the first terminal. In this case, the network device may also send instruction information to the terminal, where the instruction information is used to instruct the terminal to use the method for sidelink communication. The mode can be any one or more of mode 0 to mode 3 described in the first aspect.

For the beneficial effects of the method provided in the fourth aspect, reference may be made to the description of the effects corresponding to the corresponding features in the first aspect, which will not be repeated here.

In a fifth aspect, a communication device is provided. The communication device may be a network device, or a device in the network device (for example, a chip, or a chip system, or a circuit), or a device that can be matched and used with the network device. In one design, the communication device may include modules that perform one-to-one correspondence of the methods/operations/steps/actions described in the second aspect. The modules may be hardware circuits, software, or hardware circuits combined with software. accomplish. In one design, the communication device may include a processing module and a communication module. The processing module is used to call the communication module to perform the function of receiving and/or sending. Illustratively:

The processing module is used to generate first configuration information, and the communication module is used to send the first configuration information to the first terminal, and the first configuration information is used to instruct the first terminal to use DRX for discontinuous reception. The first parameter, the first configuration information uses the resource pool as the granularity. For the explanation, function, or introduction of the first configuration information, reference may be made to the first aspect, and no repeated description will be made here.

When the first configuration information indicates the first parameter and at least one second parameter, the processing module is further configured to instruct the terminal to use which parameter to perform sidelink communication through the communication module. For example, the terminal is instructed to use the first parameter for measurement link communication, or the terminal is instructed to use the second parameter for measurement link communication.

When the first parameter includes a first value and at least one second value, the processing module is further configured to instruct the terminal to use which value to perform sidelink communication through the communication module. For example, the terminal is instructed to use the first value for measurement link communication, or the terminal is instructed to use the second value for measurement link communication.

In a possible design, the communication module is further configured to send indication information to the first terminal, where the indication information is used to instruct the first terminal to activate DRX, or the fifth indication information is used to indicate the The first terminal deactivates DRX. When the terminal is not instructed to activate DRX, the terminal can adopt a conventional receiving method, which can achieve a compatible effect with the conventional method.

Optionally, the processing module is further configured to configure two sets of configuration information for the first terminal. For example, the processing module sends the first configuration information and at least one piece of second configuration information to the first terminal through the communication module. In this case, the communication module is also used to send instruction information to the terminal, and the instruction information is used to instruct the terminal to use what method to perform sidelink communication. The mode can be any one or more of mode 0 to mode 3 described in the first aspect.

For the beneficial effects of the method provided in the fifth aspect, reference may be made to the description of the effects corresponding to the corresponding features in the fourth aspect, which will not be repeated here.

In a sixth aspect, a communication device is provided. The communication device includes a communication interface and a processor. The communication interface is used for communication between the communication device and other devices, for example, data or signal transmission and reception. Exemplarily, the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface, and other devices may be terminals. The processor is used to call a set of programs, instructions or data to execute the method described in the fourth aspect. The communication device may also include a memory for storing programs, instructions or data called by the processor. The memory is coupled with the processor, and when the processor executes instructions or data stored in the memory, the method described in the fourth aspect can be implemented.

In a seventh aspect, an embodiment of the present application also provides a computer-readable storage medium. The computer-readable storage medium stores computer-readable instructions. When the computer-readable instructions run on a computer, The method described in the first aspect, the fourth aspect, any possible design in the first aspect, or any possible design in the fourth aspect is executed.

In an eighth aspect, an embodiment of the present application provides a chip system, which includes a processor and may also include a memory, which is used to implement any one of the possible designs of the first aspect, the fourth aspect, and the first aspect. Or the method described in any of the possible designs in the fourth aspect. The chip system can be composed of chips, or it can include chips and other discrete devices.

In a ninth aspect, an embodiment of the present application provides a communication system. The communication system includes a first terminal and a network device. The method described above; and/or, the network device is used to execute the method described in the fourth aspect or any one of the possible designs of the fourth aspect.

A tenth aspect provides a computer program product containing instructions, which when run on a computer, causes the computer to execute the method described in the first aspect and any possible design of the first aspect; and/or, The network device is used to execute the method described in the fourth aspect or any one of the possible designs of the fourth aspect.

Description of the drawings

FIG. 1 is a schematic diagram of the architecture of a communication system in an embodiment of the application;

FIG. 2 is a schematic diagram of D2D communication resource allocation in an embodiment of this application;

FIG. 3 is a schematic diagram of a mode of sidelink resource allocation in an embodiment of this application;

4 is a schematic diagram of periodically receiving side link messages in an embodiment of the application;

FIG. 5 is a schematic flowchart of a side link communication method in an embodiment of this application;

FIG. 6 is a schematic diagram of a side uplink communication method for multiple terminals in an embodiment of the application;

FIG. 7 is a schematic diagram of a downlink communication method with different cycle configurations in an embodiment of the application;

8 is a schematic diagram of a side uplink communication method under multiple sets of configuration information in an embodiment of the application;

FIG. 9 is one of the schematic diagrams of the structure of the communication device in the embodiment of the application;

FIG. 10 is the second schematic diagram of the structure of the communication device in the embodiment of this application.

Detailed ways

The embodiments of the present application provide a side-link communication method and device, which are used to improve the side-link communication quality. Among them, the method and the device are based on the same or similar technical conception. Since the method and the device have similar principles for solving the problem, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated. In the description of the embodiments of the present application, “and/or” describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, and both A and B exist separately. There are three cases of B. The character "/" generally indicates that the associated objects before and after are in an "or" relationship. At least one involved in this application refers to one or more; multiple refers to two or more. In addition, it should be understood that in the description of this application, words such as "first", "second", and "third" are only used for the purpose of distinguishing description, and cannot be understood as indicating or implying relative importance. Nor can it be understood as indicating or implying order. References described in this specification to "one embodiment" or "some embodiments", etc. mean that one or more embodiments of the present application include a specific feature, structure, or characteristic described in combination with the embodiment. Therefore, the sentences "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification are not necessarily All refer to the same embodiment, but mean "one or more but not all embodiments" unless it is specifically emphasized otherwise. The terms "including", "including", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

The side link communication method provided by the embodiments of the application can be applied to the fourth generation (4th generation, 4G) communication system, such as long term evolution (LTE), and can also be applied to the fifth generation (5th generation, 5G) communication system. ) Communication system, such as 5G new radio (NR). It can also be applied to various future communication systems, such as the 6th generation (6G) communication system.

The embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

FIG. 1 shows the architecture of a possible communication system to which the side link communication method provided by the embodiment of the present application is applicable. The communication system may include a network device 101 and one or more terminals 102. It should be understood that the communication system may include more or fewer network devices or terminals. The network device or terminal can be hardware, software that is functionally divided, or a combination of hardware and software. In addition, multiple terminals 102 can also form a communication system. The network device and the terminal can communicate with other devices or network elements. The network device 101 may send downlink data to the terminal 102, and may also receive uplink data sent by the terminal 102. Of course, the terminal 102 can also send uplink data to the network device 101, and can also receive downlink data sent by the network device 101. The terminal 102 can communicate with the terminal 102, and the communication link between the terminal 102 and the terminal 102 is called a side link.

The network device 101 is a node in a radio access network (radio access network, RAN), which may also be referred to as a base station, and may also be referred to as a RAN node (or device). At present, some examples of network equipment 101 are: next generation nodeB (gNB), next generation evolved nodeB (Ng-eNB), transmission reception point (TRP), evolved type Node B (evolved Node B, eNB), radio network controller (RNC), Node B (Node B, NB), base station controller (BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (BBU), or wireless fidelity (Wifi) access point (AP), The network device 101 may also be a satellite or a future base station, and the satellite may also be referred to as a high-altitude platform, a high-altitude aircraft, or a satellite base station. The network device 101 may also be a network device in a possible future communication system. In the embodiments of the present application, network equipment or base stations may be used to describe the above-mentioned equipment.

The terminal 102, which can also be referred to as user equipment (UE), mobile station (MS), mobile terminal (MT), terminal equipment, etc., is a way to provide users with voice or data connectivity The device can also be an Internet of Things device. For example, the terminal 102 includes a handheld device with a wireless connection function, a vehicle-mounted device, and the like. The terminal 102 can be: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palmtop computer, a mobile internet device (MID), a wearable device (such as a smart watch, a smart bracelet, a pedometer, etc.), a car Equipment (for example, cars, bicycles, electric cars, airplanes, ships, trains, high-speed rail, etc.), virtual reality (VR) equipment, augmented reality (AR) equipment, industrial control (industrial control) wireless Terminals, smart home equipment (for example, refrigerators, TVs, air conditioners, electric meters, etc.), smart robots, workshop equipment, wireless terminals in self-driving, wireless terminals in remote medical surgery, and smart grids The wireless terminal in the (smart grid), the wireless terminal in the transportation safety (transportation safety), the wireless terminal in the smart city, or the wireless terminal in the smart home, the flying equipment (for example, the smart robot) , Hot air balloons, drones, airplanes), etc.

The side link communication in the embodiment of the present application may be, for example, device-to-device (D2D) communication. The direct communication between the terminal and the terminal can simplify the communication process and reduce the communication delay. For example, side-link communication can also be communication between the vehicle and other devices (vehicle to x, V2X), such as vehicle-to-vehicle (V2V), vehicle-to-installation (V2I), and vehicle-to-pedestrian communication. (vehicle to pedestrian, V2P).

A terminal performing side-link communication needs to obtain side-link communication resources first. The following describes some possible side link resource allocation methods.

The resources used for sidelink communication are generally configured or pre-configured resources. For example, in the LTE system, a part of the uplink communication resources is divided for D2D communication. In NR, the resources used for side link communication may also be dedicated resources for the side link. For example, a dedicated side link carrier is allocated for side link communication. V2X communication terminals can use the side link. Dedicated carrier for communication.

This part of resources used for sidelink communication can generally be referred to as a resource pool. The resource pool contains time-frequency resources that can be used for side link transmission. For example, taking D2D communication in the LTE system as an example, the resource pool includes uplink subframes and uplink frequency bands that can be used for D2D communication. As shown in FIG. 2, a schematic diagram of D2D communication resource allocation is given. The D2D resource pool includes uplink subframes (such as shaded parts) that appear periodically and frequency bands used for D2D communication in the uplink bandwidth. In addition, for different D2D services, the base station can allocate dedicated D2D resources to them, for example, a D2D communication resource pool for D2D communication services, a D2D discovery resource pool for D2D discovery services, and a D2D synchronization resource for D2D synchronization. Pool.

Generally speaking, there are two modes of sidelink resource allocation, such as mode one and mode two as described below.

Mode 1: The terminal performs side-link communication and requires network equipment to allocate resources. For example, as shown in Figure 3, the terminal needs to send a side-link communication scheduling request to the network device before performing side-link communication. The network device will send a downlink communication scheduling request after receiving the side-link communication scheduling request. Control signaling (downlink control information, DCI) indicates physical uplink shared channel (PUSCH) resources, the terminal sends a side link buffer report to the network device, and the network device allocates side link communication resources for the terminal. And send DCI to the terminal to indicate the allocated side link communication resources to the terminal, and the terminal performs side link communication according to the side link communication resources indicated by the DCI.

Mode 2: The terminal does not need network equipment to allocate resources for side-link communication, but autonomously selects side-link resources from the resource pool pre-configured by the network equipment. For example, the terminal can acquire side link resources through a sensing process. The terminal will send sidelink control information (SCI). The terminal obtains the resource occupation information of other terminals by decoding the SCI of other terminals or performing sidelink measurement. The terminal can select resources not occupied by other terminals according to the sensing result. Among them, the SL measurement is based on the sidelink reference signal received power (SL-RSRP) obtained when the SCI is decoded.

Based on the foregoing example of the two LTE side link resource allocation modes, in the embodiment of the present application, when the terminal communicates on the side link, two modes can be optionally used for side link communication. One mode is that the terminal performs sidelink communication according to the sidelink resources allocated by the network device in the resource pool configured or pre-configured by the network device; the other mode is that the terminal performs sidelink communication in the resource pool or pre-configured resource pool of the network device. In the configured resource pool, the side link resources used for side link communication are independently selected, and the side link communication is performed. Wherein, the resource pool in the embodiment of the present application may include one or more time-frequency resources, or may be regarded as a collection of time-frequency resources.

Of course, the embodiments of the present application are not limited to the above two methods of obtaining side link resources. After acquiring the side link resources, the terminal needs to monitor the PSCCH of other terminals when performing side link communication. According to the SCI in the PSCCH of other terminals, the PSSCH sent by other terminals can be demodulated and decoded to obtain other terminals. The data in the transmitted PSSCH completes side link communication. The terminal needs to blindly check the PSCCH sent by other terminals. If the terminal keeps blindly checking or monitoring the PSCCH, it will bring a lot of power consumption to the terminal.

The high energy consumption of the terminal is a pain point. In order to reduce the high energy consumption caused by the terminal's continuous monitoring of the PSCCH, in the embodiment of the present application, a discontinuous reception (DRX) technology is introduced into the side link communication.

DRX means that the terminal does not need to continuously receive side-link messages, but discontinuously receives side-link messages according to certain rules. For example, as shown in Figure 4, the terminal can periodically receive side-link messages, including receiving time (ON) and non-receiving time (OFF) in one cycle, and the terminal can receive side-link messages within one cycle of receiving time. Road messages, stop receiving side-link messages within a period of non-receiving time. In this way, the terminal does not need to continuously receive side link messages, thereby saving power consumption. Wherein, the side link message received by the terminal includes PSCCH and/or PSSCH.

If the terminal adopts DRX technology for side link communication, it needs to obtain some DRX parameters. The sending-side terminal may send DRX parameters to the receiving-side terminal. Different sending-side terminals may all send DRX parameters to the same receiving-side terminal, and the DRX parameters of two sending-side terminals may be different. As a result, the two terminals of the side-link communication may not have the intersection of the reception time (ON), so that the side-link communication cannot be performed. The embodiment of the present application provides a side-link communication method, which can solve this problem.

The side link communication method provided by the embodiment of the present application will be described in detail below, as shown in FIG. 5, and the specific steps are as follows.

S501: The first terminal obtains first configuration information.

The first configuration information is used to indicate the first parameter used by the first terminal for DRX.

In one case, the first configuration information is configured by the network device. In another case, if the first terminal is located outside the coverage area of the network device, the first configuration information of the first terminal may also be pre-configured. In this case, the first terminal may also enter the coverage area of the network device. At the time, update according to the received first configuration information of the network device.

Fig. 5 is an example of the first configuration information being configured by a network device. In this case, it may also include S500: the network device generates the first configuration information. The network device sends the generated first configuration information to the first terminal, and the first terminal receives the first configuration information from the network device.

The first parameter may be referred to as the first DRX parameter, which is some parameters related to DRX when the first terminal adopts the DRX technology. The first parameter can be one or more. For example, the first parameter may include a side-line DRX cycle (SL DRX cycle), and the side-line DRX cycle includes the length of receiving time in one side-line DRX cycle, and may also include the length of non-receiving time in one cycle. For the convenience of description, the side row DRX cycle can also be briefly described as a DRX cycle (DRX cycle), or simply as a cycle. The first parameter may also include SL DRX duration timer (drx-onDurationTimer), SL DRX deactivation timer, SL DRX hybrid automatic repeat request (HARQ) round trip time (RTT) timing Device, or SL DRX retransmission timer, SL DRX cycle start offset. The configuration of the timer includes the length of the timer and other configurations, and there is no restriction here. Among them, the SL DRX duration timer is a period of time that starts in a DRX cycle and is used to indicate whether the terminal is in the active time. At the activation time, the terminal performs PSCCH monitoring, and performs data reception and/or transmission. After the timer is started, the terminal is in the active time. The timer value can be a positive integer such as 1ms or 1000ms. The SL DRX deactivation timer is used to indicate whether the terminal is in the activation time. When the terminal monitors a PSCCH, the SL DRX deactivation timer starts. The terminal is in the active time, monitoring the PSCCH, and receiving and/or sending data. The value of the timer can be a non-negative integer such as 0ms, 1ms, or 100ms. The SL DRX hybrid automatic repeat request round-trip time timer is the maximum duration until an SL retransmission is received, and is used to indicate whether the terminal is in the active time. When the timer is activated, the terminal is not in the active time, that is, the terminal will not monitor the PSCCH. The value of the timer may be a non-negative integer number of orthogonal frequency division multiplexing (OFDM) symbols or the number of time slots. Generally, an SL DRX retransmission timer will be started after the round trip time timer of an SL DRX hybrid automatic retransmission request expires. Optionally, the terminal starts the SL and DRX hybrid automatic repeat request round-trip time timer of the corresponding HARQ process at the first symbol after the end symbol of the PSSCH is sent. When SL HARQ feedback is disabled, that is, when the configuration period of the PSFCH feedback resource is 0, an SL DRX retransmission timer will be started after the SL DRX hybrid automatic repeat request round-trip time timer expires. When SL HARQ feedback is enabled, that is, when the configuration period of the PSFCH feedback resource is 1, 2 or 4, assuming that HARQ feedback is enabled in the SCI that schedules the PSSCH, the terminal will stop the SL of the corresponding process after sending an ACK in the PSFCH DRX retransmission timer. Assuming that the SCI of the scheduling PSSCH indicates that HARQ feedback is disabled, an SL DRX retransmission timer will be started after the SL DRX hybrid automatic repeat request round-trip time timer expires.

SL DRX retransmission timer is used to indicate whether the terminal is in the active time, the timer is turned on, and the terminal is in the active time. The value of the timer can be 10s or 180s, etc. SL DRX cycle start offset is used to define the time slot that the terminal starts in a DRX cycle, generally 1/32ms or an integer multiple of 1ms.

Optionally, the value of the SL DRX retransmission timer may be determined under each channel busy ratio (channel occupation ratio, CBR) for each priority. For example, the length of the SL DRX retransmission timer corresponding to the higher priority data is longer. Optionally, different priority intervals correspond to different SL DRX retransmission timer length intervals. For example, when the CBR value is large, the corresponding SL DRX retransmission timer has a shorter length, and different CBR value intervals can correspond to different SL DRX retransmission timer length intervals. In this way, increasing the power saving time of the terminal can better alleviate channel congestion.

Optionally, the value of the SL DRX deactivation timer may be determined under the CBR of each channel for each priority. For example, the SL DRX deactivation timer corresponding to high-priority data has a longer length. Optionally, different priority intervals correspond to different SL DRX deactivation timer length intervals. For example, when the CBR value is large, the corresponding SL DRX deactivation timer has a shorter length, and different CBR value intervals can correspond to different SL DRX deactivation timer length intervals. In this way, increasing the power saving time of the terminal can better alleviate channel congestion.

In one case, the first parameter may include multiple DRX cycles, such as a long DRX cycle, a short DRX cycle, a side row DRX cycle, and so on.

The first configuration information is configuration information whose granularity is the resource pool. That is, with the resource pool as the granularity, each resource pool is configured with one or more sets of DRX parameters, and the terminal indicated in this resource pool can receive the DRX parameters corresponding to the resource pool. For example, the first configuration information corresponds to the first resource pool, or the first configuration information is configuration information on the first resource pool, or the first configuration information corresponds to the first resource pool, or the first configuration information is a resource Pool-level (per resource pool) information. It can be understood that all the terminals working on the first resource pool are configured with the first configuration information, in other words, the first information is common information configured on a resource pool, and all terminals configured with this resource pool can receive the first configuration information. information.

The network device may also send the first configuration information to other terminals working in the first resource pool. That is, the first configuration information is information that the network device is configured on the first resource pool. Each terminal configured to work on the first resource pool can receive the first configuration information.

S502: The first terminal performs sidelink communication according to the first configuration information. In FIG. 5, the side link communication between the first terminal and the second terminal is taken as an example for illustration.

The first terminal discontinuously receives the side link message according to the first configuration information. Optionally, the first parameter includes a period, which is recorded as the first period, and the value unit of the first period may be milliseconds (ms), for example, 1 ms, 2 ms, and so on. A first cycle includes the first receiving time and the first non-receiving time.

When the first terminal performs side-link communication according to the first configuration information, it can receive the side-link message within the first receiving time in a cycle, and stop receiving the side-link message during the first non-receiving time in a cycle. Link message.

It can be seen that the first DRX parameter in the first configuration information may indicate that the first terminal receives the side link message at intervals or discontinuously. Optionally, the first DRX parameter in the first configuration information may also be used to instruct the first terminal to send the side uplink message. For example, according to the first configuration information, the first terminal sends the side link message within the first receiving time within a period. For another example, according to the first configuration information, the first terminal uses a randomly selected resource to send the side link message within the first non-receiving time within a period. That is, the terminal obtains resources in a randomly selected manner in a pre-configured or configured resource pool or resource set to send side link information. Since during the first non-receiving time, the first terminal cannot monitor the PSCCH of other terminals and cannot select resources through sensing, but the method of randomly selecting resources does not need to monitor the PSCCH of other terminals, so the first terminal can Resources are randomly selected within the first non-receiving time, and the side link message is sent on the randomly selected resources.

In the embodiment of the present application, since the first configuration information is based on the resource pool as the granularity, the DRX parameters configured for terminals working on a resource pool are the same, that is, the receiving time and non-receiving time in a period are aligned. Therefore, terminals working in a resource pool can perform side-link communication within the same receiving time, avoiding the problem of inability to communicate due to the lack of intersection of the receiving time of the two terminals, thereby improving the quality of side-link communication , It realizes the application of DRX technology for side-link communication and reduces the power consumption of the terminal. In addition, configuring DRX parameters through network equipment eliminates the need to configure DRX parameters between terminals, which saves signaling waste caused by frequent signaling interactions when configuring DRX parameters between the terminal and the terminal.

In the embodiment of the present application, the first configuration information may be configured by the network device to the first terminal, or may be pre-configured or stipulated by the protocol. If the first terminal obtains the first configuration information from the network device, it may obtain it through higher layer signaling. The high-layer signaling carries the first configuration information, or in other words, the first configuration information is configured by the high-layer signaling. Among them, high-level signaling can be radio resource control (RRC) messages, media access layer signaling, media access control element (MAC CE), and system information block (system information block). , SIB) or master information block (master information block, MIB).

In one case, when acquiring the information for configuring the resource pool, the first terminal may acquire the first configuration information from the information for configuring the resource pool, and the information for configuring the resource pool includes the information of the first parameter. In this way, the first terminal can determine the resource pool corresponding to the first configuration information. For example, the first terminal obtains high-level signaling, and the high-level signaling includes information for configuring a resource pool for the first terminal and also includes the first configuration information.

In another case, the first terminal obtains the first configuration information of DRX, and carries the index or identifier of the first resource pool in the first configuration information, so that the first terminal can determine that the first configuration information corresponds to the first resource Pool.

In another case, the first terminal separately obtains the information for configuring the resource pool and the first configuration information of DRX.

Optionally, the first configuration information may be information configured on each serving cell and/or carrier. For example, the first configuration information corresponds to the first serving cell, and the first configuration information corresponds to the first carrier. In other words, the first configuration information is configuration information with a serving cell as the granularity, or the first configuration information is configuration information on each first serving cell, or that the first configuration information has a corresponding relationship with the first serving cell, In other words, the first configuration information is per service cell information. Similarly, the first configuration information may be configuration information with a carrier as the granularity, or the first configuration information is per carrier information, or the first configuration information has a corresponding relationship with the first carrier, or the first configuration information has a corresponding relationship with the first carrier. A configuration information is configuration information on each first carrier.

Optionally, the first configuration information may also be the configuration of each bandwidth part (BWP), that is, the configuration of the first configuration information is based on the BWP as the granularity, and each configuration is configured to send and/or receive data on the BWP. The terminal will receive the first configuration information.

In practical applications, one resource pool may not only correspond to one DRX parameter. For example, the first configuration information is also used to indicate at least one second parameter used by the first terminal for DRX. The second parameter is different from the first parameter. For example, the period included in the second parameter is different from the period included in the first parameter.

After the first terminal receives the first configuration information, it determines that the first configuration information includes the first parameter and at least one second parameter, which parameter the first terminal will use for sidelink communication. The embodiments of this application propose some Optional plan.

Optionally, the first terminal obtains the indication information, which is recorded as the first indication information, and the first indication information is used to indicate which parameter the first terminal uses for sidelink communication, that is, to indicate whether the first terminal uses the first parameter or the second parameter. Parameters for side link communication. The first parameter and the at least one second parameter refer to two parameters of the same type. For example, the first parameter is the first DRX cycle, and the second parameter is the second DRX cycle. Among them, the timer, period length and/or time slot offset corresponding to the DRX cycle are configured separately.

The first terminal may determine the parameter indicated by the first indication information according to the first indication information to perform sidelink communication.

Wherein, the first indication information may come from a network device or other terminals. If the first indication information comes from another terminal, the first indication information may be the SCI, the first indication information may be indicated by a field in the SCI, or may be indicated by reserved bits in the SCI. In another case, the first indication information may be PC5RRC, MAC, or MAC CE. Among them, PC5 is the interface or reference point between the terminal and the terminal, and PC5 RRC refers to the RRC configuration of the terminal to the terminal.

The first terminal can also independently decide which parameter to use for sidelink communication, that is, the first terminal determines the DRX parameter to be used by itself. If the peer device for side-link communication is the second terminal, that is, the first terminal sends data information to the second terminal, the first terminal can notify the second terminal of the independently determined parameters to enable the side-link communication The two terminals can align DRX parameters. For example, the first terminal may send second indication information to the second terminal, where the second indication information is used to indicate which parameter the first terminal performs sidelink communication according to. The second terminal receives the second indication information from the first terminal, and determines the parameter selected by the first terminal according to the second indication information. The second terminal may perform sidelink communication with the first terminal according to the parameters indicated by the second indication information. Optionally, the second terminal may also indicate the parameters used by the second terminal to the first terminal according to its own service characteristics, and negotiate with the first terminal to determine the parameters used for the sidelink communication finally. The second indication information may be SCI. The second indication information may be indicated by a field in the SCI, or may be indicated by reserved bits in the SCI. The second indication information may also be PC5RRC, MAC, or MAC CE.

The two methods of the first terminal adopting the first indication information or independently determining the parameters can be used in combination or independently.

In short, in terms of the sending end and the receiving end, the sending end can indicate the DRX parameters used by the receiving end, or the sending end can also indicate the DRX parameters adopted by the receiving end to the receiving end. The parameters used by the sender indicated by the sender may be independently selected or determined according to the indication information. In this way, suitable parameters or parameter values can be selected according to their own service types or service characteristics and the terminal's own power saving requirements.

In a possible implementation manner, a DRX parameter configured with the granularity of the resource pool may have multiple values. Taking the DRX parameter (ie, the first parameter) as a cycle as an example, the first resource pool corresponds to the first configuration information, that is, the first configuration information is information configured in the first resource pool. In one case, the first configuration information configures multiple first parameters, that is, multiple cycles are configured. In another case, the period parameter configured in the first configuration information has multiple values.

Similarly, if it is said that the first parameter corresponding to the first resource pool has multiple values, which value the terminal selects for sidelink communication, the embodiments of the present application propose some optional solutions. It is assumed that the multiple values of the first parameter include a first value and at least one second value.

Optionally, the first terminal obtains the indication information, which is recorded as third indication information, and the third indication information is used to indicate which value the first terminal uses for sidelink communication, that is, instruct the first terminal to use the first value or at least the above-mentioned value. A value in a second value is used for side link communication.

The first terminal may select the parameter value indicated by the third indication information to perform sidelink communication according to the third indication information.

Wherein, the third indication information may come from a network device or other terminals. If the third indication information comes from other terminals, the third indication information may be SCI. It can be indicated by a field in the SCI, or it can be indicated by a reserved bit in the SCI. Wherein, using the SCI to indicate provides flexibility for the terminal, and the terminal sending the indication information can determine the third indication information for the terminal receiving the indication information according to the type of service to be sent. The third indication information may also be PC5RRC, MAC, or MAC CE. For another example, the third indication information may also come from a network device, which may be downlink control information DCI, or any one of RRC, MAC, MAC CE, SIB, and MIB. Among them, the use of DCI to indicate to ensure the flexibility of DRX configuration.

The first terminal can also autonomously decide which value to use for side-link communication. If the peer device for side-link communication is the second terminal, the first terminal may notify the second terminal of the independently determined value, so that the two terminals of side-link communication can align the value of the DRX parameter. For example, the first terminal may send fourth indication information to the second terminal, where the fourth indication information is used to indicate which parameter value the first terminal performs sidelink communication according to. In this way, the second terminal can perform sidelink communication with the first terminal according to the DRX parameter value configuration used by the first terminal. The fourth indication information may be the SCI, which may be indicated by a field in the SCI, or may be indicated by reserved bits in the SCI. The fourth indication information may also be PC5RRC, MAC, or MAC CE.

The first terminal adopts the third indication information or independently determines the parameter value in two ways that can be used in combination or independently.

In short, in terms of the sending end and the receiving end, the sending end can indicate to the receiving end the parameter values it adopts, and the sending end can also indicate to the receiving end the parameter values that the receiving end should adopt. The parameter values used by the sending end indicated by the sending end may be independently selected or determined according to the indication information. In this way, suitable parameters or parameter values can be selected according to their own business types or business characteristics.

The following uses an example to describe the case where the first configuration information includes multiple parameters or the first parameter includes multiple values.

The first parameter is used as the side-line DRX cycle for description. For the convenience of description, the following side-line DRX cycle is briefly described as the cycle. The first configuration information includes multiple periods, such as period 1, period 2, period 3, and period 4. In other words, the first parameter is the period, and the period includes multiple values, including period 1, period 2, period 3, and period 4. According to the solution described above, the first terminal obtains the first indication information, or the first terminal sends the second indication information to the second terminal, or the first terminal obtains the third indication information, or the first terminal sends the first indication to the second terminal. Four instructions. Regardless of the scheme, the indication information is used to indicate a certain period from period 1 to period 4.

Assuming that the indication information is SCI, a certain period can be indicated through a field in the SCI or a reserved bit in the SCI. For example, period 1 to period 4 need 2 bits to indicate, use 01 to identify period 1, use 10 to identify period 2, use 11 to identify period 3, and use 00 to identify period 4. If the reserved bits used to indicate the cycle in the SCI are 2 bits, then the 2 bits are 01, which is used to indicate cycle 1, indicating that the DRX cycle selected by the first terminal is cycle 1, or indicating the second terminal The required DRX cycle is cycle 1. If the field or reserved bit indicating the DRX cycle in the SCI is blank, cycle 1 is the cycle configuration parameter or cycle configuration parameter value used by default.

Optionally, a certain period can also be implicitly associated through the priority field in the SCI. For example, suppose that the priority from high to low is 1, 2, 3, 4, 5, 6, 7, and 8, and the length of cycle 1 to cycle 4 from long to short is cycle 1, cycle 2, cycle 3, and cycle. 4. Then priority 1-2 corresponds to cycle 1, priority 3-4 corresponds to cycle 2, priority 5-6 corresponds to cycle 3, and priority 7-8 corresponds to cycle 4. When the priority field in the SCI indicates priority 1, the corresponding period is period 1.

Optionally, the SCI can also be used to indicate the activation or deactivation (enable or de-enable) of DRX. The terminal can use the SCI to indicate whether it activates DRX, or to indicate whether the opposite end activates DRX. In one case, the first terminal uses SCI to indicate whether to activate DRX. In another case, the first terminal uses the SCI to indicate whether the second terminal activates DRX.

In a possible implementation manner, the first configuration information includes multiple side row DRX cycles, such as cycle 1, cycle 2, and cycle 3. SCI is used to indicate cycle 1, cycle 2, cycle 3 and whether to activate or deactivate DRX. For example, as shown in Table 1, there are 2 bits in the SCI to indicate these 4 states.

Table 1

SCI中2比特2 bits in SCI	字段或预留比特含义Field or reserved bit meaning
0000	周期1Cycle 1
0101	周期2Cycle 2
1010	周期3Cycle 3
1111	激活或去激活DRX配置Activate or deactivate DRX configuration

If a terminal performs sidelink communication with multiple different terminals, the terminal may receive multiple indication messages, and the multiple indication messages may indicate different parameters or indicate different parameter values. In this case, when the terminal is instructed with multiple parameters or multiple values, the terminal can perform sidelink communication respectively according to the configuration of the multiple parameters or multiple values. That is, select the union of the configuration results based on multiple parameters or multiple values for side-link communication.

As shown in FIG. 6, multiple terminals are represented by PUE, VUE1, and VUE2, and the PUE performs unicast communication with VUE1 and VUE2, respectively. PUE is configured with four DRX parameters from period 1 to period 4. VUE1 indicates PUE use period 1 through bit 01 in SCI, and VUE2 indicates PUE use period 2 through bit 10 in SCI. The PUE can select the union period of the receiving time in period 1 and period 2, and perform side link communication in the union period. Whether it is the reception time in cycle 1 or the reception time in cycle 2, the PUE can perform sidelink communication. At the intersection of the non-receiving time in period 1 and period 2, the side link message is stopped receiving. That is, the PUE can receive and/or send data within the duration of the configured receiving time.

For example, as shown in FIG. 7, the PUE performs side-link communication within the duration of L1+L2, including receiving and/or sending side-link data.

The above is a description of the configuration information received from the first terminal. In actual applications, the first terminal may be configured with multiple resource pools, and the first terminal may receive multiple configuration information. Each configuration information corresponds to each resource pool. A resource pool, that is, each configuration information is based on the resource pool as the granularity. Then two different configuration information corresponds to two different resource pools, and the DRX parameters of the two different resource pools may be different. In this way, how the terminal selects DRX parameters, this application gives some possible implementations.

Assuming that the first terminal also obtains second configuration information, the second configuration information is used to indicate the third parameter used by the first terminal for DRX, and the second configuration information corresponds to the second resource pool, that is, the second configuration information is configured in the second resource From the pool. The terminals working on the second resource pool are all configured with the same third parameter. That is, the second configuration information is configured for each resource pool, and terminals configured with the same resource pool obtain the same third parameter.

In this way, the first terminal obtains the first configuration information and the second configuration information, and obtains the first parameter and the third parameter for DRX. The first parameter is different from the third parameter. Then the terminal can perform sidelink communication according to any one or a combination of the following methods.

As shown in FIG. 8, it is assumed that the first parameter includes the first DRX cycle, and the first DRX cycle includes the first receiving time and the first non-receiving time. The third parameter includes a second DRX cycle, and the second DRX cycle includes a second receiving time and a second non-receiving time.

In the common time L1 of the first receiving time and the second receiving time, the first terminal receives the side link message, and the first terminal may also send the side link message.

Within the common time L2 of the first receiving time and the second non-receiving time, the first terminal receives the side link message in the first resource pool, and stops receiving the side link message in the second resource pool. It can be understood that the first terminal can send data to other terminals in the first resource pool, and can also receive data from other terminals. The first terminal does not receive data from other terminals in the second resource pool. For example, assuming that the second terminal and the first terminal perform sidelink communication in the first resource pool, and the third terminal and the first terminal perform sidelink communication in the second resource pool, it can be understood as Within the common time of a receiving time and a second non-receiving time, the first terminal may receive the side link message of the second terminal, but stop receiving the side link message of the third terminal.

Alternatively, within the common time L2 of the first receiving time and the second non-receiving time, the first terminal may also receive the side link message, including receiving the side link message of the first resource pool and receiving the second resource pool.

Alternatively, within the common time L2 of the first receiving time and the second non-receiving time, the first terminal may not receive the side-link message, including the side-link message that does not receive the first resource pool and the second resource pool Road news.

Similarly, within the common time L3 of the first non-receiving time and the second receiving time, the first terminal receives the side-link message in the second resource pool, and stops receiving the side-link message in the first resource pool.

Alternatively, within the common time L3 of the first non-receiving time and the second receiving time, the first terminal may also receive the side link message, including receiving the side link message of the first resource pool and receiving the second resource pool.

Or, within the common time L3 of the first non-receiving time and the second receiving time, the first terminal may not receive the side-link message, including the side-link message not receiving the first resource pool and not receiving the second resource pool Road news.

During the common time L4 of the first non-receiving time and the second non-receiving time, stop receiving the side uplink message. It is also possible to stop sending side-link messages, or determine resources by randomly selecting resources, and to send side-link messages on the randomly selected resources.

The above methods can be independent or combined. Optionally, the first terminal may also obtain the indication information, and determine the DRX mode according to the indication information. The DRX mode may be any one or a combination of the foregoing. The form of the indication information can be RRC signaling, MAC CE, SIB or MIB, etc.

The above-mentioned common time is the intersection of the two times.

In the method described above in the embodiment of this application, the first parameter is a parameter used by the first terminal for DRX, and the first parameter is introduced using the DRX cycle as an example. The first parameter can also be any of the following parameters: SL DRX duration Timer (drx-onDurationTimer), SL DRX deactivation timer, SL DRX HARQ RTT timer, or SL DRX retransmission timer, SL DRX cycle start offset. For the configuration and usage of other parameters, please refer to the description of the DRX cycle.

After receiving the DRX configuration information, the first terminal may perform side-link communication according to the DRX configuration information, and discontinuously receive side-link messages. In another manner, the first terminal may obtain an activation instruction or a deactivation instruction, where the activation instruction is used to activate DRX, and the deactivation instruction is used to deactivate DRX. Activation can also be referred to as enabling, and deactivation can also be referred to as de-enabling. Activating DRX can be described as enabling DRX, and deactivating DRX can be described as disabling DRX. For example, the first terminal obtains fifth indication information, and the fifth indication information is used to instruct the first terminal to activate or deactivate DRX. The first terminal may receive the fifth indication information from the network device. In this case, the fifth indication information may be RRC signaling, MAC signaling, MAC CE, MIB, or SIB. The first terminal may also receive fifth indication information from other terminals. In this case, the fifth indication information may be SCI, PC5RRC, MAC, or MAC CE. For example, the first terminal receives the fifth indication information of the second terminal , The fifth indication information may indicate whether the second terminal activates DRX, or the fifth indication information may indicate whether the first terminal activates DRX. Optionally, the fifth indication information may be a priority field in the SCI. For example, when the priority field in the SCI indicates the highest priority, the second terminal is instructed to deactivate DRX.

It should be noted that the examples in each application scenario in this application only show some possible implementation manners, which are for a better understanding and description of the method of this application. Those skilled in the art can obtain some examples of evolution forms according to the side-link communication method provided in the application.

In the above-mentioned embodiments provided in the present application, the method provided in the embodiments of the present application is introduced from the perspective of the terminal, taking the first terminal as an example. In order to realize the functions in the methods provided in the above embodiments of the present application, the terminal may include a hardware structure and/or a software module, and the above functions are implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether a certain function among the above-mentioned functions is executed by a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraint conditions of the technical solution.

As shown in FIG. 9, based on the same technical concept, an embodiment of the present application also provides a communication device 900. The communication device 900 may be a terminal or a network device, or a device in a terminal or a network device, or capable of interacting with A device that is used by a terminal or a network device. In one design, the communication device 900 may include modules corresponding to the methods/operations/steps/actions executed by the terminal in the foregoing method embodiments. The modules may be hardware circuits, software, or hardware circuits. Combined with software implementation. In one design, the communication device 900 may include a processing module 901 and a communication module 902. The processing module 901 is used to call the communication module 902 to perform receiving and/or sending functions.

When the communication device 900 is used to perform operations performed by the terminal:

The processing module 901 is configured to obtain first configuration information, and the first configuration information may be obtained through the communication module 902. The first configuration information is used to configure DRX parameters used by the first terminal in sidelink communication. For example, the first configuration information is used to indicate the first parameter used by the first terminal for DRX, the first configuration information uses the resource pool as the granularity, and the first configuration information corresponds to the first resource pool.

The communication module 902 is configured to perform side link communication according to the first configuration information.

For example, the communication module 902 is configured to perform side-link communication non-continuously according to the DRX parameter indicated by the first configuration information.

When the communication device 900 is used to perform operations performed by a network device:

The processing module 901 is configured to generate first configuration information;

The communication module 902 is configured to send the first configuration information to the first terminal, where the first configuration information is used to configure the DRX parameters used by the first terminal in sidelink communication. For example, the first configuration information is used to indicate the first parameter used by the first terminal for DRX, the first configuration information uses the resource pool as the granularity, and the first configuration information corresponds to the first resource pool.

The communication module 902 is also configured to perform other receiving or sending steps or operations performed by the terminal or network device in the foregoing method embodiment. The processing module 901 may also be used to perform other corresponding steps or operations performed by the terminal or network device in the foregoing method embodiment except for receiving and sending, which will not be repeated here.

The division of modules in the embodiments of this application is illustrative, and it is only a logical function division. In actual implementation, there may be other division methods. In addition, the functional modules in the various embodiments of this application can be integrated into one process. In the device, it can also exist alone physically, or two or more modules can be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or software function modules.

As shown in FIG. 10, a communication device 1000 provided by an embodiment of this application is used to implement the functions of the terminal or network device in the foregoing method. The communication device may be a terminal or a network device, or a device in a terminal or a network device, or a device that can be used in matching with the terminal or the network device. Wherein, the communication device 1000 may be a chip system. In the embodiments of the present application, the chip system may be composed of chips, or may include chips and other discrete devices. The communication device 1000 includes at least one processor 1020, configured to implement the functions of the terminal or the network device in the method provided in the embodiment of the present application. The communication device 1000 may further include a communication interface 1010. In the embodiment of the present application, the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface, which is used to communicate with other devices through a transmission medium. For example, the communication interface 1010 is used for the device in the communication device 1000 to communicate with other devices.

Exemplarily, when the communication device 1000 is used to perform operations performed by the terminal:

The processor 1020 is configured to use the communication interface 1010 to obtain first configuration information. The first configuration information is used to configure DRX parameters used by the first terminal in sidelink communication. For example, the first configuration information is used to instruct the first terminal to use For the first parameter of DRX, the first configuration information uses the resource pool as the granularity, and the first configuration information corresponds to the first resource pool; the processor 1020 is further configured to use the communication interface 1010 to perform sidelink communication according to the first configuration information.

When the communication device 1000 is used to perform operations performed by a network device:

The processor 1020 is configured to generate first configuration information;

The communication interface 1010 is configured to send the first configuration information to the first terminal, where the first configuration information is used to configure the DRX parameters used by the first terminal in sidelink communication. For example, the first configuration information is used to indicate the first parameter used by the first terminal for DRX, the first configuration information uses the resource pool as the granularity, and the first configuration information corresponds to the first resource pool.

The processor 1020 and the communication interface 1010 may also be used to execute other corresponding steps or operations performed by the terminal or network device in the foregoing method embodiment, which will not be repeated here.

The communication device 1000 may also include at least one memory 1030 for storing program instructions and/or data. The memory 1030 and the processor 1020 are coupled. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The processor 1020 may operate in cooperation with the memory 1030. The processor 1020 may execute program instructions stored in the memory 1030. At least one of the at least one memory may be included in the processor.

The embodiment of the present application does not limit the specific connection medium between the aforementioned communication interface 1010, the processor 1020, and the memory 1030. In the embodiment of the present application in FIG. 10, the memory 1030, the processor 1020, and the communication interface 1010 are connected by a bus 1040. The bus is represented by a thick line in FIG. , Is not limited. The bus can be divided into an address bus, a data bus, a control bus, and so on. For ease of representation, only one thick line is used to represent in FIG. 10, but it does not mean that there is only one bus or one type of bus.

When the communication device 900 and the communication device 1000 are specifically chips or chip systems, what the communication module 902 and the communication interface 1010 output or receive may be baseband signals. When the communication device 900 and the communication device 1000 are specifically devices, the output or reception of the communication module 902 and the communication interface 1010 may be radio frequency signals.

In the embodiments of the present application, the processor may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, which may implement or Perform the methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.

In the embodiment of the present application, the memory 1030 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), For example, random-access memory (RAM). The memory is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited to this. The memory in the embodiments of the present application may also be a circuit or any other device capable of realizing a storage function for storing program instructions and/or data.

Some or all of the operations and functions performed by the terminal described in the foregoing method embodiments of the present application may be completed by a chip or an integrated circuit.

In order to realize the functions of the communication device described in FIG. 9 or FIG. 10, an embodiment of the present application further provides a chip, including a processor, for supporting the communication device to implement the functions related to the terminal in the foregoing method embodiment. In a possible design, the chip is connected to a memory or the chip includes a memory, and the memory is used to store the necessary program instructions and data of the communication device.

The embodiment of the present application provides a computer-readable storage medium that stores a computer program, and the computer program includes instructions for executing the foregoing method embodiments.

The embodiments of the present application provide a computer program product containing instructions, which when run on a computer, cause the computer to execute the foregoing method embodiments.

Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

This application is described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of this application. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

Although the preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the spirit and scope of the embodiments of the present application. In this way, if these modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

A side link communication method, characterized in that it comprises:

The first terminal acquires first configuration information, where the first configuration information is used to instruct the first terminal to use first parameters for discontinuous reception of DRX, and the first configuration information uses a resource pool as a granularity;

The first terminal performs side link communication according to the first configuration information.
The method according to claim 1, wherein the first parameter includes a first period, and one of the first periods includes a first receiving time and a first non-receiving time;

The first terminal performing sidelink communication according to the first configuration information includes:

Receiving, by the first terminal, a side link message at the first receiving time;

The first terminal stops receiving the side link message during the first non-receiving time.
The method according to claim 2, wherein the first terminal performs sidelink communication according to the first configuration information, further comprising:

The first terminal randomly selects resources to send the side link message during the first non-receiving time.
The method according to any one of claims 1 to 3, wherein the first configuration information is further used to indicate at least one second parameter used by the first terminal for DRX;

The method also includes:

The first terminal obtains first indication information; where the first indication information is used to instruct the first terminal to perform sidelink communication according to the first parameter or the second parameter.
The method according to any one of claims 1 to 4, wherein the first configuration information is further used to indicate at least one third parameter used by the first terminal for DRX;

The method also includes:

The first terminal sends second indication information to the second terminal; where the second indication information is used to instruct the first terminal to perform sidelink communication according to the first parameter or the third parameter.
The method according to any one of claims 1 to 3, wherein the first parameter includes a first value and at least one second value;

The method also includes:

The first terminal obtains third indication information, where the third indication information is used to instruct the first terminal to perform sidelink communication according to the first value or the second value.
The method according to any one of claims 1 to 3 and 6, wherein the first parameter includes a first value and at least one second value;

The method also includes:

The first terminal sends fourth indication information to the second terminal, where the fourth indication information is used to instruct the first terminal to perform sidelink communication according to the first value or the second value.
The method according to claim 1, wherein the method further comprises: the first terminal acquiring second configuration information, and the second configuration information is used to instruct the first terminal to use the fourth DRX configuration information. Parameters, the first configuration information corresponds to a first resource pool, and the second configuration information corresponds to a second resource pool;

The fourth parameter includes a second period, and one of the second periods includes a second receiving time and a second non-receiving time;

The first terminal performing sidelink communication according to the first configuration information includes:

The first terminal performs sidelink communication according to the first configuration information and the second configuration information; wherein, the common time of the first terminal at the first receiving time and the second receiving time Inside, receive side link messages.
The method according to claim 8, wherein the first terminal receives the side-line chain in the first resource pool during the common time of the first receiving time and the second non-receiving time Road message, stop receiving side link messages in the second resource pool.
The method according to claim 8, wherein the first terminal stops receiving and/or stops sending side-link messages within the common time of the first receiving time and the second non-receiving time .
The method according to claim 8, wherein the first terminal receives and/or sends a side link message within a common time of the first receiving time and the second non-receiving time.
The method according to any one of claims 1 to 11, wherein the method further comprises:

The first terminal obtains fifth indication information, where the fifth indication information is used to instruct the first terminal to activate DRX, or the fifth indication information is used to instruct the first terminal to deactivate DRX.
The method according to any one of claims 1 to 12, wherein the first configuration information comprises any one of the following: radio resource control RRC message, media access control MAC signaling, media access layer control unit MAC CE, system information block SIB or master information block MIB.
A side link communication method, characterized in that it comprises:

The network device generates first configuration information;

The network device sends the first configuration information to the first terminal, where the first configuration information is used to instruct the first terminal to use the first parameter for discontinuous reception of DRX, and the first configuration information is based on the resource The pool is granular.
The method according to claim 14, wherein the first configuration information is further used to indicate at least one second parameter used by the first terminal for DRX; the first parameter includes a first period, and the The second parameter includes the second period.
The method according to claim 15, wherein the network device instructs the first terminal to use the first parameter or the second parameter to perform sidelink communication.
The method of claim 14, wherein the first parameter includes a first value and at least one second value; the first value includes a first period, and the second value includes a second period.
The method according to claim 17, wherein the network device instructs the first terminal to use the first value or the second value for sidelink communication.
The method according to any one of claims 14 to 18, wherein the method further comprises:

The network device sends second configuration information to the first terminal, where the second configuration information is used to indicate a fourth parameter used by the first terminal for DRX, and the second configuration information uses a resource pool as a granularity, The first configuration information corresponds to a first resource pool, and the second configuration information corresponds to a second resource pool.
The method according to any one of claims 14 to 19, wherein the first configuration information can also be used to instruct the first terminal to activate or deactivate DRX.
The method according to any one of claims 14-19, wherein the method further comprises:

The network device sends instruction information to the first terminal, where the instruction information is used to instruct the first terminal to activate DRX, or the instruction information is used to instruct the first terminal to deactivate DRX.
A communication device, characterized in that it comprises:

A processing module, configured to obtain first configuration information, where the first configuration information is used to instruct the first terminal to use first parameters for discontinuous reception of DRX, and the first configuration information uses a resource pool as a granularity;

The communication module is configured to perform side link communication according to the first configuration information.
The apparatus according to claim 22, wherein the first parameter includes a first period, and one of the first periods includes a first receiving time and a first non-receiving time;

When performing side-link communication according to the first configuration information, the communication module is configured to:

At the first receiving time, receiving a side link message;

At the first non-receiving time, stop receiving side link messages.
The device according to claim 23, wherein, when performing side-link communication according to the first configuration information, the communication module is further configured to:

At the first non-reception time, a resource is randomly selected to send the side link message.
The apparatus according to any one of claims 22 to 24, wherein the first configuration information is further used to indicate at least one second parameter used by the first terminal for DRX;

The processing module is also used for:

Acquire first indication information; where the first indication information is used to instruct the first terminal to perform sidelink communication according to the first parameter or the second parameter.
The apparatus according to any one of claims 22 to 25, wherein the first configuration information is further used to indicate at least one third parameter used by the first terminal for DRX;

The communication module is also used for:

Sending second indication information to the second terminal; wherein the second indication information is used to instruct the first terminal to perform sidelink communication according to the first parameter or the third parameter.
The device according to any one of claims 22 to 24, wherein the first parameter comprises a first value and at least one second value;

The processing module is also used for:

Acquire third indication information, where the third indication information is used to instruct the first terminal to perform sidelink communication according to the first value or the second value.
The device according to any one of claims 22-24, 27, wherein the first parameter comprises a first value and at least one second value;

The communication module is also used for:

Send fourth indication information to the second terminal, where the fourth indication information is used to instruct the first terminal to perform sidelink communication according to the first value or the second value.
The device of claim 22, wherein the processing module is further configured to:

Acquire second configuration information, where the second configuration information is used to indicate a fourth parameter used by the first terminal for DRX, the first configuration information corresponds to a first resource pool, and the second configuration information corresponds to a second resource Pool

The fourth parameter includes a second period, and one of the second periods includes a second receiving time and a second non-receiving time;

When performing side-link communication according to the first configuration information, the communication module is configured to:

Perform side-link communication according to the first configuration information and the second configuration information; wherein, the communication module receives the side-link communication within the common time of the first receiving time and the second receiving time Road news.
The apparatus according to claim 29, wherein the communication module is further configured to perform the receiving side in the first resource pool during the common time of the first receiving time and the second non-receiving time An uplink message, stop receiving the side uplink message in the second resource pool.
The device according to claim 29, wherein the communication module is further configured to stop receiving and/or stop sending the side line chain within the common time of the first receiving time and the second non-receiving time Road news.
The apparatus according to claim 29, wherein the communication module is further configured to receive and/or send a side link message within a common time of the first receiving time and the second non-receiving time .
The device according to any one of claims 22 to 32, wherein the processing module is further configured to:

Acquire fifth indication information, where the fifth indication information is used to instruct the first terminal to activate DRX, or the fifth indication information is used to instruct the first terminal to deactivate DRX.
The apparatus according to any one of claims 22 to 33, wherein the first configuration information comprises any one of the following: radio resource control RRC message, media access control MAC signaling, media access layer control unit MAC CE, system information block SIB or master information block MIB.
A communication device, characterized in that it comprises:

A processing module for generating first configuration information;

The communication module is configured to send the first configuration information to a first terminal, where the first configuration information is used to instruct the first terminal to use first parameters for discontinuous reception of DRX, and the first configuration information is The resource pool is granular.
The apparatus according to claim 35, wherein the first configuration information is further used to indicate at least one second parameter used by the first terminal for DRX; the first parameter includes a first period, and the The second parameter includes the second period.
The device according to claim 36, wherein the processing module is further configured to instruct the first terminal to use the first parameter or the second parameter to perform sidelink communication.
The apparatus of claim 35, wherein the first parameter includes a first value and at least one second value; the first value includes a first period, and the second value includes a second period.
The device according to claim 38, wherein the processing module is further configured to instruct the first terminal to use the first value or the second value for sidelink communication.
The device according to any one of claims 35 to 39, wherein the communication module is further configured to:

Send second configuration information to the first terminal, where the second configuration information is used to indicate the fourth parameter used by the first terminal for DRX, and the second configuration information uses a resource pool as the granularity. The configuration information corresponds to the first resource pool, and the second configuration information corresponds to the second resource pool.
The apparatus according to any one of claims 35 to 40, wherein the first configuration information can also be used to instruct the first terminal to activate or deactivate DRX.
The device according to any one of claims 35-40, wherein the communication module is further configured to:

Send instruction information to the first terminal, where the instruction information is used to instruct the first terminal to activate DRX, or the instruction information is used to instruct the first terminal to deactivate DRX.
A communication device, characterized by comprising: a processor, the processor is coupled with a memory, the memory is used to store a program or instruction, when the program or instruction is executed by the processor, the device Perform the method according to any one of claims 1-13.
A communication device, characterized by comprising: a processor, the processor is coupled with a memory, the memory is used to store a program or instruction, when the program or instruction is executed by the processor, the device Carry out the method according to any one of claims 14-21.
A communication system characterized by comprising the communication device according to any one of claims 22 to 34 and the communication device according to any one of claims 35 to 42.
A computer-readable storage medium, wherein computer-readable instructions are stored in the computer storage medium, and when the computer-readable instructions run on a communication device, as described in any one of claims 1 to 13 The method of is executed or the method of any one of claims 14-21 is executed.
A computer program product, characterized in that computer readable instructions are stored in the computer program product, and when the computer readable instructions run on a communication device, the method according to any one of claims 1 to 13 Is executed or the method according to any one of claims 14-21 is executed.