WO2020221215A1

WO2020221215A1 - Methods for sending and receiving csi and configuring resources, and devices

Info

Publication number: WO2020221215A1
Application number: PCT/CN2020/087291
Authority: WO
Inventors: 袁璞; 向铮铮; 张锦芳
Original assignee: 华为技术有限公司
Priority date: 2019-04-30
Filing date: 2020-04-27
Publication date: 2020-11-05
Also published as: CN111865483B; CN111865483A

Abstract

The present application relates to methods for sending and receiving CSI and configuring resources, and devices. The method for sending CSI comprises: a first terminal device selects a first resource from a first resource pool, resources included in the first resource pool being used for sending CSI, or the resources included in the first resource pool being used for sending sidelink data, and the first resource being used for sending the CSI; the first terminal device sends first CSI to a second terminal device by means of the first resource. In the embodiments of the present application, the first resource pool is configured for terminal devices; when needing to send CSI, the first terminal can select resources from the first resource pool to send same, thereby providing a novel mechanism for sending CSI. The embodiments of the present application are applicable to the field of Internet of Vehicles, intelligent connected vehicles or automatic driving.

Description

Method and equipment for sending and receiving CSI and configuring resources

Cross references to related applications

This application requires the priority of a Chinese patent application filed with the State Intellectual Property Office, the application number is 201910365171.7, and the application name is "a method and equipment for sending and receiving CSI and configuring resources" on April 30, 2019, and its entire contents Incorporated in this application by reference.

Technical field

This application relates to the field of communication technology, and in particular to a method and device for sending and receiving CSI and configuring resources.

Background technique

In the new radio (NR) system, terminal equipment is supported to report channel state information (CSI) to the base station. Specifically, the base station first determines the information of the resource carrying the reference signal, and sends measurement configuration information to the terminal device. The measurement configuration information includes information about the resource carrying the reference signal, and may also include information about the resource used by the terminal device to send CSI to the base station. , And information including the conditions for reporting CSI. After that, the base station can send the reference signal to the terminal device. After receiving the measurement configuration information, the terminal device receives the reference signal on the resource carrying the reference signal indicated by the measurement configuration information, measures the reference signal, and when the reporting condition indicated by the measurement configuration information is met, the measurement configuration information is configured Resources used to send CSI, send CSI to the base station.

In vehicle-to-everything (V2X) communication, two air interfaces are defined. The first is the communication link or air interface between the terminal equipment and the access network equipment or base station, which is generally called Uu interface. The data link transmitted on the Uu port is called uplink and donwlink. The Uu port defines the communication protocol between the terminal equipment and the base station. The second type is called proximity communication (proximity communication 5, PC5). The data link transmitted on the PC5 port is called sidelink (SL), and the PC5 port defines the communication protocol between the terminal device and the terminal device. . In sidelink communication, two modes of terminal equipment (mode) are defined, namely mode-1 and mode-2. The difference between them is that for terminal equipment in mode-1, resource scheduling is performed by the base station during communication; while for terminal equipment in mode-2, resource scheduling is performed by terminal equipment during communication. For example, the base station configures a resource pool in advance, and the terminal device selects resources from the resource pool when communicating.

According to the foregoing introduction, it can be known that currently at the Uu port, the scheduling of the CSI report is performed by the base station. But in V2X mode-2, the base station will not directly schedule terminal equipment. Therefore, the current CSI reporting method cannot be applied to V2X mode-2. For V2X mode-2, a new CSI reporting mechanism needs to be discussed.

Summary of the invention

The embodiments of the present application provide a method and device for sending and receiving CSI and configuring resources, which are used to provide a new mechanism for transmitting CSI.

In a first aspect, a method for sending CSI is provided. The method includes: a first terminal device selects a first resource from a first resource pool, and resources included in the first resource pool are used to send CSI, or the first resource The resources included in the pool are used to send side link data, and the first resource is used to send CSI; the first terminal device sends the first CSI to the second terminal device through the first resource.

The method may be executed by a first communication device, and the first communication device may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip system. Exemplarily, the communication device is a terminal device. Exemplarily, the terminal device is a first terminal device.

In the embodiment of the present application, a first resource pool is configured for the terminal device. When the first terminal device needs to send CSI, it can select a resource to send from the first resource pool, which provides a new mechanism for sending CSI. And the first resource pool may be a resource pool for sending side link data. For example, the resource pool configured for terminal equipment for sending side link data may be directly used as a resource pool for CSI, without additional configuration resources. It is relatively simple to send CSI from the pool. Alternatively, the first resource pool may be a resource pool used to send CSI, which is equivalent to a new resource pool specially configured for CSI, so that the resource pool is dedicated to sending CSI, which can minimize resource selection conflicts between CSI and data.

With reference to the first aspect, in a possible implementation manner of the first aspect, the resources included in the first resource pool are used to send sidelink data, and the method further includes: the first terminal device slave Selecting a third resource in the first resource pool; in addition, sending the first CSI to the second terminal device by the first terminal device through the first resource includes: the first terminal device through the third resource The first resource in the CSI sends the first CSI to the second terminal device, and the first terminal device sends the CSI to the third terminal device through resources other than the first resource in the third resource The first side uplink data.

The first terminal device may select resources from the first resource pool when it needs to send data and CSI at the same time. For example, at a certain moment, the first terminal device needs to simultaneously send the first CSI to the second terminal device and the first side uplink data to the third terminal device. Then, the first terminal device can select the third resource from the first resource pool, send the first CSI to the second terminal device through the first resource in the third resource, and send the first CSI through the third resource except the first resource All or part of the resources send the first side link data to the third terminal device. It is equivalent to that the first terminal device first selects the third resource from the first resource pool, and then uses a part of the third resource (the first resource) to send the first CSI, and the other part of the third resource The resource is used to send the first side uplink data, so that the selected resource for sending CSI and the resource for sending side uplink data do not conflict.

With reference to the first aspect, in a possible implementation of the first aspect, the resources included in the first resource pool are frequency domain resources, and the method further includes: the first terminal device receives 2. The first configuration information of the terminal device, where the first configuration information is used to configure feedback time information, and the feedback time information is used by the first terminal device to send the first terminal device at the time indicated by the feedback time information. CSI. In addition, the first terminal device sending the first CSI to the second terminal device through the first resource includes: the first terminal device sends the first CSI to the second terminal device through the first resource at the time indicated by the feedback time information The second terminal device sends the first CSI.

If the resources included in the first resource pool are frequency domain resources, time domain resources also need to be configured for the first CSI. In the embodiment of the present application, the second terminal device may configure time domain resources for the CSI sent by the first terminal device, so that the first terminal device may send the first terminal device to the second terminal device on the time domain resource indicated by the second terminal device. One CSI. If the second terminal device is a half-duplex device, then if the time when the first terminal device sends CSI is unknown, the second terminal device needs to spare every possible time to frequently detect CSI, which will affect the second terminal device The opportunity to send data. The second terminal device configures the feedback time information, and the time at which the first terminal device may send CSI is known to the second terminal device. Then the second terminal device only needs to blindly detect the CSI on the frequency, and There is no need to spare every possible time to frequently detect CSI, so as to minimize the impact on the opportunity of the second terminal device to send data, and also reduce the power consumption of the second terminal device due to the detection of CSI.

With reference to the first aspect, in a possible implementation manner of the first aspect, the method further includes: the first terminal device receives information from the second terminal device or the second resource pool of the network device to Replace the first resource pool with the second resource pool indicated by the information of the second resource pool.

If there is a resource conflict, for example, the fourth resource used by the first terminal device to send the second CSI conflicts with the resource used by other terminal devices to send sidelink data, or in other words, the first terminal device uses The fourth resource used to send the second CSI is the same resource used by other terminal devices to send sidelink data. Then, the second terminal device or network device can reconfigure the first resource pool, and the reconfigured first resource pool One resource pool is called the second resource pool. In this way, when the channel condition of the first resource pool is not good, or the first resource pool is occupied by other higher priority data transmissions, the resource pool can be reconfigured or resources can be reselected for CSI transmission. Reduce conflicts and improve the reliability of CSI feedback.

With reference to the first aspect, in a possible implementation manner of the first aspect, the method further includes: the first terminal device selects a second resource from the second resource pool, and the second resource pool includes Resources are used to send CSI, or resources included in the second resource pool are used to send side link data, and the second resources are used to send CSI; the first terminal device sends the CSI to the The second terminal device sends the second CSI.

After obtaining the second resource pool, the first terminal device may reselect resources from the second resource pool to send the second CSI, so that the second terminal device can receive the second CSI again. Among them, the resources included in the second resource pool can be dedicated to sending CSI, or the resources included in the second resource pool can be used to send side link data, but the embodiment of the application can use the resources in the second resource pool to send Send CSI.

With reference to the first aspect, in a possible implementation manner of the first aspect, the method further includes: the first terminal device receives the second resource information from the second terminal device or the network device to use The second resource indicated by the second resource replaces the fourth resource selected by the first terminal device from the first resource pool for sending the second CSI.

If there is a resource conflict, for example, the fourth resource used by the first terminal device to send the second CSI conflicts with the resource used by other terminal devices to send sidelink data, or in other words, the first terminal device uses The fourth resource used to send the second CSI is the same resource used by other terminal devices to send side-link data, so there is no need to reconfigure the resource pool, but the resource can be reselected for the second CSI. Since this method does not need to configure the resource pool, the workload required for the second terminal device or the network device is relatively small, and the problem of resource conflict can also be solved.

With reference to the first aspect, in a possible implementation manner of the first aspect, the method further includes: the first terminal device sends the second CSI to the second terminal device through the second resource.

After obtaining the second resource, the first terminal device can send the second CSI through the second resource, so that the second terminal device can receive the second CSI again.

In a second aspect, a method for receiving CSI is provided. The method includes: a second terminal device determines a first resource pool, and resources included in the first resource pool are used to send CSI, or resources included in the first resource pool Used to send side link data; the second terminal device detects the resources indicated by the first resource pool, and receives the first resource from the first terminal device through the first resource included in the first resource pool One CSI. The first resource is used to send CSI.

The method may be executed by a second communication device, and the second communication device may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip system. Exemplarily, the communication device is a terminal device. Exemplarily, the terminal device is a second terminal device.

With reference to the second aspect, in a possible implementation manner of the second aspect, the second terminal device receives the first CSI from the first terminal device through the first resource included in the first resource pool, including: The second terminal device receives the first CSI from the first terminal device through the first resource in the third resources included in the first resource pool.

With reference to the second aspect, in a possible implementation manner of the second aspect, the resources included in the first resource pool are frequency domain resources, and the method further includes: the second terminal device The terminal device sends first configuration information, where the first configuration information is used to configure feedback time information, and the feedback time information is used for the first terminal device to send CSI at the time indicated by the feedback time information. In addition, the second terminal device monitors the resource indicated by the first resource pool, and receives the first CSI from the first terminal device through the first resource included in the first resource pool, including: The second terminal device monitors on the resource indicated by the first resource pool at the time indicated by the feedback time information, and receives the first CSI from the first terminal device through the first resource .

With reference to the second aspect, in a possible implementation manner of the second aspect, the method further includes: the second terminal device determines that the resource selected by the first terminal device in the first resource pool is different from other resources. If the resource selected by the terminal device conflicts, the second terminal device determines the second resource pool to replace the first resource pool, or determines the second resource pool to replace the fourth resource selected by the first terminal device. Two resources.

For example, if the second terminal device fails to detect the second CSI, for example, it does not receive the second CSI, or the quality of the second CSI received by the second terminal device is poor, the second terminal device can determine that a resource conflict has occurred . In this case, the second terminal device can determine the second resource pool used to replace the first resource pool, or determine the second resource used to replace the fourth resource. In this way, resource conflicts can be avoided again. Happening.

With reference to the second aspect, in a possible implementation manner of the second aspect, the second terminal device determining a second resource pool for replacing the first resource pool includes: The device sends a first message, where the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, or the first message is used for Trigger the network device to reconfigure the first resource pool; the second terminal device receives the information of the second resource pool from the network device; or, the second terminal device performs operations on the first resource pool Reconfiguration to obtain the second resource pool.

Determining the second resource pool, or reconfiguring the first resource pool to obtain the second resource pool, this operation may be performed by the network device, or may also be performed by the second terminal device. For example, if the second terminal device (or the second terminal device and the first terminal device) is within the coverage of the network device, the network device can determine the second resource pool. After the second resource pool is determined, the network device can set the Second, the information of the resource pool is sent to the second terminal device, and the second terminal device sends it to the first terminal device. Alternatively, the network device may also send the information of the second resource pool to the first terminal device and the second terminal together Device, so that both the first terminal device and the second terminal device can obtain information about the second resource pool. The network device can intervene in the sending process of the CSI of the terminal device, and can reconfigure the first resource pool according to the network congestion status, thereby achieving the effect of optimizing resource configuration. Or, the second terminal device (or the second terminal device and the first terminal device) is not within the coverage of the network device, then the second terminal device can determine the second resource pool by itself, and after the second resource pool is determined, the first The second terminal device may send the information of the second resource pool to the first terminal device. This method does not require a network device to determine the second resource pool, which improves the autonomy of the second terminal device and reduces the interaction process between the terminal device and the network device.

With reference to the second aspect, in a possible implementation manner of the second aspect, the method further includes: the second terminal device sending information of the second resource pool to the first terminal device.

If the network device only sends the information of the second resource pool to the second terminal device, the second terminal device may re-send the information of the second resource pool to the first terminal device; or, if the second terminal device determines the first terminal device itself Two resource pools, then the second terminal device can send the information of the second resource pool to the first terminal device. In this way, after the first terminal device receives the information of the second resource pool from the second terminal device, the second resource pool can be determined.

With reference to the second aspect, in a possible implementation manner of the second aspect, the method further includes: the second terminal device performs detection on a resource indicated by the second resource pool, and passes the second The second resource included in the resource pool receives the second CSI from the second terminal device.

With reference to the second aspect, in a possible implementation manner of the second aspect, the first terminal device determining the second resource used to replace the fourth resource selected by the first terminal device includes: the first terminal device The second terminal device sends a first message to the network device, where the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, or The first message is used to trigger the network device to reselect the resource for sending CSI; the second terminal device receives information about the second resource from the network device; or, the second terminal device reselects the resource, To obtain the second resource.

To determine the second resource, this operation may be performed by the network device, or may also be performed by the second terminal device. For example, if the second terminal device (or the second terminal device and the first terminal device) is within the coverage of the network device, the network device can determine the second resource. After the second resource is determined, the network device can transfer the second resource The information is sent to the second terminal device, and the second terminal device sends it to the first terminal device. Alternatively, the network device may also send the information of the second resource to the first terminal device and the second terminal device together. Both a terminal device and a second terminal device can obtain information about the second resource. The network device can intervene in the CSI sending process of the terminal device, and can re-determine the second resource according to the network congestion status, thereby reducing the probability of resource conflict. Or, if the second terminal device (or the second terminal device and the first terminal device) is not within the coverage of the network device, the second terminal device can determine the second resource by itself. After the second resource is determined, the second terminal The device may send the information of the second resource to the first terminal device. This method does not require the network device to determine the second resource, which improves the autonomy of the second terminal device and reduces the interaction process between the terminal device and the network device. Moreover, only the second resource needs to be determined without reconfiguring the first resource pool, and the workload is relatively small for the second terminal device or network device.

With reference to the second aspect, in a possible implementation manner of the second aspect, the method further includes: the second terminal device sending information of the second resource to the first terminal device.

If the network device only sends the information about the second resource to the second terminal device, the second terminal device can send the information about the second resource to the first terminal device again; or if the second terminal device determines the second resource by itself , Then the second terminal device can send the information of the second resource to the first terminal device. In this way, after the first terminal device receives the second resource information from the second terminal device, the second resource pool can be determined.

With reference to the second aspect, in a possible implementation manner of the second aspect, the method further includes: the second terminal device receives the second CSI from the second terminal device through the second resource.

Regarding the technical effects of the second aspect or various possible implementations of the second aspect, reference may be made to the introduction of the technical effects of the first aspect or the corresponding implementations of the first aspect.

In a third aspect, a first method for configuring resources is provided. The method includes: a network device receives a first message from a second terminal device, where the first message is used to instruct the first terminal device to select a resource in a first resource pool. Resources conflict with resources selected by other terminal devices, or the first message is used to trigger the network device to reconfigure the first resource pool, and the resources included in the first resource pool are used to send CSI, or the first message Resources included in a resource pool are used to send sidelink data; the network device reconfigures the first resource pool to obtain a second resource pool.

The method may be executed by a third communication device, and the third communication device may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip system. Exemplarily, the communication device is a network device.

With reference to the third aspect, in a possible implementation manner of the third aspect, the method further includes: the network device sends the information of the second resource pool to the second terminal device; or, the The network device sends the information of the second resource pool to the second terminal device and the first terminal device.

Regarding the technical effects of the third aspect or various possible implementations of the third aspect, refer to the first aspect, the corresponding implementation of the first aspect, the second aspect, or the corresponding implementation of the second aspect Introduction of the technical effect of the method.

In a fourth aspect, a second method for configuring resources is provided. The method includes: a network device receives a first message from a second terminal device, where the first message is used to instruct the first terminal device to select a resource in a first resource pool. Resources conflict with resources selected by other terminal devices, or the first message is used to trigger the network device to reselect resources for sending CSI, the resources included in the first resource pool are used for sending CSI, or The resources included in the first resource pool are used for sending side link data; the network device reselects the resource for sending CSI to obtain the second resource.

The method may be executed by a fourth communication device, which may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip system. Exemplarily, the communication device is a network device.

With reference to the fourth aspect, in a possible implementation manner of the fourth aspect, the method further includes: the network device sending information of the second resource to the second terminal device; or, the network The device sends the information of the second resource to the second terminal device and the first terminal device.

Regarding the technical effects brought about by the fourth aspect or various possible implementation manners of the fourth aspect, please refer to the first aspect, the corresponding implementation manner of the first aspect, the second aspect, or the corresponding implementation of the second aspect Introduction of the technical effect of the method.

In a fifth aspect, a first communication device is provided, for example, the communication device is the first communication device as described above. The communication device is configured to execute the foregoing first aspect or the method in any possible implementation manner of the first aspect. Specifically, the communication device may include a module for executing the method in the first aspect or any possible implementation of the first aspect, for example, including a processing module and a transceiver module. Exemplarily, the communication device is a terminal device. Exemplarily, the terminal device is a first terminal device. Wherein, the processing module is configured to select a first resource from a first resource pool, the resources included in the first resource pool are used to send CSI, or the resources included in the first resource pool are used to send side uplinks Data, the first resource is used to send CSI; the transceiver module is used to send the first CSI to the second terminal device through the first resource.

With reference to the fifth aspect, in a possible implementation manner of the fifth aspect, the resources included in the first resource pool are used to send side-link data, and then the processing module is further configured to send data from the first resource pool. The third resource is selected from the resource pool; in addition, the transceiver module is configured to send the first CSI to the second terminal device through the first resource in the following manner: to send the first CSI to the second terminal device through the first resource in the third resource The second terminal device sends the first CSI, and sends the first side uplink data to the third terminal device through resources other than the first resource in the third resource.

With reference to the fifth aspect, in a possible implementation manner of the fifth aspect, the resources included in the first resource pool are frequency-domain resources, and the transceiver module is further configured to receive data from the second terminal device. First configuration information, where the first configuration information is used to configure feedback time information, and the feedback time information is used by the first terminal device to send the first CSI at the time indicated by the feedback time information. In addition, the transceiver module is configured to send the first CSI to the second terminal device through the first resource as follows: at the time indicated by the feedback time information, send the first CSI to the second terminal through the first resource The device sends the first CSI.

With reference to the fifth aspect, in a possible implementation manner of the fifth aspect, the transceiver module is further configured to receive information from a second resource pool of the second terminal device or network device, so as to use the first 2. The second resource pool indicated by the information of the resource pool replaces the first resource pool.

With reference to the fifth aspect, in a possible implementation manner of the fifth aspect, the processing module is further configured to select a second resource from the second resource pool, and the resources included in the second resource pool are used to send CSI, or the resources included in the second resource pool are used to send side-link data, and the second resource is used to send CSI; the transceiver module is further used to send the second resource to the second resource The terminal device sends the second CSI.

With reference to the fifth aspect, in a possible implementation manner of the fifth aspect, the transceiver module is further configured to receive information about a second resource from the second terminal device or network device, so as to use the second The second resource indicated by the resource replaces the fourth resource selected by the first terminal device from the first resource pool for sending the second CSI.

With reference to the fifth aspect, in a possible implementation manner of the fifth aspect, the transceiver module is further configured to send the second CSI to the second terminal device through the second resource.

Regarding the technical effects brought about by the fifth aspect or various possible implementation manners of the fifth aspect, reference may be made to the introduction of the technical effects of the first aspect or the corresponding implementation manners of the first aspect.

In a sixth aspect, a second communication device is provided, for example, the communication device is the first communication device as described above. The communication device is configured to execute the foregoing second aspect or any possible implementation method of the second aspect. Specifically, the communication device may include a module for executing the method in the second aspect or any possible implementation of the second aspect, for example, including a processing module and a transceiver module. Exemplarily, the communication device is a terminal device. Exemplarily, the terminal device is a second terminal device. The processing module is configured to determine a first resource pool, the resources included in the first resource pool are used to send CSI, or the resources included in the first resource pool are used to send side link data; The transceiver module is configured to perform detection on the resource indicated by the first resource pool, and receive the first CSI from the first terminal device through the first resource included in the first resource pool, and the first resource is used for Send CSI.

With reference to the sixth aspect, in a possible implementation manner of the sixth aspect, the transceiver module is configured to receive the first CSI from the first terminal device through the first resource included in the first resource pool as follows: Receiving the first CSI from the first terminal device by using the first resource in the third resources included in the first resource pool.

With reference to the sixth aspect, in a possible implementation manner of the sixth aspect, the resources included in the first resource pool are frequency domain resources, and the transceiver module is further configured to send the first terminal device to the first terminal device. Configuration information, where the first configuration information is used to configure feedback time information, and the feedback time information is used for the first terminal device to send CSI at the time indicated by the feedback time information. In addition, the transceiver module is configured to monitor on the resources indicated by the first resource pool in the following manner, and receive the first CSI from the first terminal device through the first resources included in the first resource pool: The time indicated by the feedback time information is monitored on the resource indicated by the first resource pool, and the first CSI from the first terminal device is received through the first resource.

With reference to the sixth aspect, in a possible implementation manner of the sixth aspect, the processing module is further configured to determine that the resource selected by the first terminal device in the first resource pool and the resource selected by other terminal devices If the resource conflict is determined, the second resource pool used to replace the first resource pool is determined, or the second resource used to replace the fourth resource selected by the first terminal device is determined.

With reference to the sixth aspect, in a possible implementation manner of the sixth aspect, the processing module is configured to determine a second resource pool for replacing the first resource pool by: The device sends a first message, where the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, or the first message is used for Trigger the network device to reconfigure the first resource pool; receive the information of the second resource pool from the network device through the transceiver module; or reconfigure the first resource pool to obtain the The second resource pool.

With reference to the sixth aspect, in a possible implementation manner of the sixth aspect, the transceiver module is further configured to send information of the second resource pool to the first terminal device.

With reference to the sixth aspect, in a possible implementation manner of the sixth aspect, the transceiving module is further configured to perform detection on the resources indicated by the second resource pool, and pass data included in the second resource pool The second resource receives the second CSI from the second terminal device.

With reference to the sixth aspect, in a possible implementation manner of the sixth aspect, the processing module is configured to determine a second resource for replacing the fourth resource selected by the first terminal device in the following manner: The transceiver module sends a first message to the network device, where the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, or The first message is used to trigger the network device to reselect the resource used to send CSI; to receive the information of the second resource from the network device through the transceiver module; or to reselect the resource to obtain the second resource .

With reference to the sixth aspect, in a possible implementation manner of the sixth aspect, the transceiver module is further configured to send information about the second resource to the first terminal device.

With reference to the sixth aspect, in a possible implementation manner of the sixth aspect, the transceiver module is further configured to receive the second CSI from the second terminal device through the second resource.

Regarding the technical effects brought about by the sixth aspect or various possible implementation manners of the sixth aspect, reference may be made to the introduction of the technical effects of the second aspect or the corresponding implementation manners of the second aspect.

In a seventh aspect, a third communication device is provided, for example, the communication device is the third communication device as described above. The communication device is configured to execute the foregoing third aspect or the method in any possible implementation manner of the third aspect. Specifically, the communication device may include a module for executing the method in the third aspect or any possible implementation of the third aspect, for example, including a processing module and a transceiver module. Exemplarily, the communication device is a network device. The transceiver module is configured to receive a first message from a second terminal device, and the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices , Or, the first message is used to trigger the network device to reconfigure the first resource pool, the resources included in the first resource pool are used for sending CSI, or the resources included in the first resource pool are used for the sending side Uplink data; the processing module is used to reconfigure the first resource pool to obtain a second resource pool.

With reference to the seventh aspect, in a possible implementation manner of the seventh aspect, the transceiver module is further configured to send information of the second resource pool to the second terminal device, or to transmit the Second, the information of the resource pool is sent to the second terminal device and the first terminal device.

Regarding the technical effects brought about by the seventh aspect or various possible implementation manners of the seventh aspect, reference may be made to the introduction of the technical effects of the third aspect or the corresponding implementation manners of the third aspect.

In an eighth aspect, a fourth communication device is provided, for example, the communication device is the fourth communication device as described above. The communication device is configured to execute the foregoing fourth aspect or the method in any possible implementation manner of the fourth aspect. Specifically, the communication device may include a module for executing the fourth aspect or the method in any possible implementation manner of the fourth aspect, for example, including a processing module and a transceiver module. Exemplarily, the communication device is a network device. The transceiver module is configured to receive a first message from a second terminal device, and the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices , Or, the first message is used to trigger the network device to re-select resources for sending CSI, the resources included in the first resource pool are used for sending CSI, or the resources included in the first resource pool are used for Send side uplink data; the processing module is used to reselect the resource for sending CSI to obtain the second resource.

With reference to the eighth aspect, in a possible implementation manner of the eighth aspect, the transceiver module is further configured to send information about the second resource to the second terminal device, or send the second The resource information is sent to the second terminal device and the first terminal device.

Regarding the technical effects brought about by the eighth aspect or various possible implementation manners of the eighth aspect, reference may be made to the introduction of the technical effects of the fourth aspect or the corresponding implementation manners of the fourth aspect.

In a ninth aspect, a fifth communication device is provided. The communication device is, for example, the first communication device described above. The communication device includes a processor and a transceiver, and the processor and the transceiver are coupled with each other to implement the method described in the first aspect or various possible designs of the first aspect. Exemplarily, the communication device is a chip provided in a communication device. Exemplarily, the communication device is a terminal device. Exemplarily, the terminal device is a first terminal device. Wherein, the transceiver is realized by, for example, an antenna, a feeder, a codec in the communication device, or, if the communication device is a chip set in the communication device, the transceiver is, for example, a communication interface in the chip. It is connected with the radio frequency transceiving component in the communication equipment to realize the information transmission and reception through the radio frequency transceiving component. Wherein, the processor is configured to select a first resource from a first resource pool, the resources included in the first resource pool are used to send CSI, or the resources included in the first resource pool are used to send side links Data, the first resource is used to send CSI; the transceiver is used to send the first CSI to the second terminal device through the first resource.

With reference to the ninth aspect, in a possible implementation manner of the ninth aspect, if the resources included in the first resource pool are used to send sidelink data, then the processor is further configured to send data from the first resource pool. A third resource is selected from the resource pool; in addition, the transceiver is configured to send the first CSI to the second terminal device through the first resource in the following manner: to send the first CSI to the second terminal device through the first resource in the third resource The second terminal device sends the first CSI, and sends the first side uplink data to the third terminal device through resources other than the first resource in the third resource.

With reference to the ninth aspect, in a possible implementation manner of the ninth aspect, the resources included in the first resource pool are frequency domain resources, and then the transceiver is further configured to receive data from the second terminal device First configuration information, where the first configuration information is used to configure feedback time information, and the feedback time information is used by the first terminal device to send the first CSI at the time indicated by the feedback time information. In addition, the transceiver is configured to send the first CSI to the second terminal device through the first resource as follows: at the time indicated by the feedback time information, send the first CSI to the second terminal device through the first resource Send the first CSI.

With reference to the ninth aspect, in a possible implementation manner of the ninth aspect, the transceiver is further configured to receive information from the second resource pool of the second terminal device or network device, so as to use the first 2. The second resource pool indicated by the information of the resource pool replaces the first resource pool.

With reference to the ninth aspect, in a possible implementation manner of the ninth aspect, the processor is further configured to select a second resource from the second resource pool, and the resources included in the second resource pool are used to send CSI, or resources included in the second resource pool are used to send side-link data, and the second resource is used to send CSI; the transceiver is also used to send the second resource to the second resource The terminal device sends the second CSI.

With reference to the ninth aspect, in a possible implementation manner of the ninth aspect, the transceiver is further configured to receive information about a second resource from the second terminal device or network device, so as to use the second The second resource indicated by the resource replaces the fourth resource selected by the first terminal device from the first resource pool for sending the second CSI.

With reference to the ninth aspect, in a possible implementation manner of the ninth aspect, the transceiver is further configured to send the second CSI to the second terminal device through the second resource.

Regarding the technical effects brought by the ninth aspect or various possible implementations of the ninth aspect, reference may be made to the introduction of the technical effects of the first aspect or the corresponding implementation manners of the first aspect.

In a tenth aspect, a sixth communication device is provided. The communication device is, for example, the second communication device as described above. The communication device includes a processor and a transceiver, and the processor and the transceiver are coupled with each other to implement the method described in the foregoing second aspect or various possible designs of the second aspect. Exemplarily, the communication device is a chip provided in a communication device. Exemplarily, the communication device is a terminal device. Exemplarily, the terminal device is a second terminal device. Wherein, the transceiver is realized by, for example, an antenna, a feeder, a codec in the communication device, or, if the communication device is a chip set in the communication device, the transceiver is, for example, a communication interface in the chip. It is connected with the radio frequency transceiving component in the communication equipment to realize the information transmission and reception through the radio frequency transceiving component. Wherein, the processor is configured to determine a first resource pool, the resources included in the first resource pool are used to send CSI, or the resources included in the first resource pool are used to send side link data; The transceiver is configured to perform detection on the resource indicated by the first resource pool, and receive the first CSI from the first terminal device through the first resource included in the first resource pool, where the first resource is used for Send CSI.

With reference to the tenth aspect, in a possible implementation manner of the tenth aspect, the transceiver is configured to receive the first CSI from the first terminal device through the first resource included in the first resource pool as follows: The first resource in the third resources included in the first resource pool receives the first CSI from the first terminal device.

With reference to the tenth aspect, in a possible implementation manner of the tenth aspect, the resources included in the first resource pool are frequency domain resources, then the transceiver is further configured to send the first terminal device to the first terminal device. Configuration information, where the first configuration information is used to configure feedback time information, and the feedback time information is used for the first terminal device to send CSI at the time indicated by the feedback time information. In addition, the transceiver is configured to monitor on the resources indicated by the first resource pool in the following manner, and receive the first CSI from the first terminal device through the first resources included in the first resource pool: At the time indicated by the feedback time information, monitoring is performed on the resource indicated by the first resource pool, and the first CSI from the first terminal device is received through the first resource.

With reference to the tenth aspect, in a possible implementation manner of the tenth aspect, the processor is further configured to determine the resource selected by the first terminal device in the first resource pool and the resource selected by other terminal devices If the resource conflict is determined, the second resource pool used to replace the first resource pool is determined, or the second resource used to replace the fourth resource selected by the first terminal device is determined.

With reference to the tenth aspect, in a possible implementation manner of the tenth aspect, the processor is configured to determine a second resource pool used to replace the first resource pool in the following manner: Send a first message, the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, or the first message is used to trigger The network device reconfigures the first resource pool; receives the information of the second resource pool from the network device through the transceiver; or reconfigures the first resource pool to obtain the first resource pool 2. Resource pool.

With reference to the tenth aspect, in a possible implementation manner of the tenth aspect, the transceiver is further configured to send information of the second resource pool to the first terminal device.

With reference to the tenth aspect, in a possible implementation manner of the tenth aspect, the transceiver is further configured to perform detection on the resources indicated by the second resource pool, and pass the The second resource receives the second CSI from the second terminal device.

With reference to the tenth aspect, in a possible implementation manner of the tenth aspect, the processor is configured to determine a second resource used to replace the fourth resource selected by the first terminal device in the following manner: The transceiver sends a first message to the network device, where the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, or the first message A message is used to trigger the network device to reselect the resource for sending CSI; to receive the information of the second resource from the network device through the transceiver; or to reselect the resource to obtain the second resource.

With reference to the tenth aspect, in a possible implementation manner of the tenth aspect, the transceiver is further configured to send information about the second resource to the first terminal device.

With reference to the tenth aspect, in a possible implementation manner of the tenth aspect, the transceiver is further configured to receive the second CSI from the second terminal device through the second resource.

Regarding the technical effects brought about by the tenth aspect or various possible implementation manners of the tenth aspect, reference may be made to the introduction of the technical effects of the second aspect or the corresponding implementation manners of the second aspect.

In an eleventh aspect, a seventh communication device is provided. The communication device is, for example, the aforementioned third communication device. The communication device includes a processor and a transceiver, and the processor and the transceiver are coupled with each other to implement the methods described in the foregoing third aspect or various possible designs of the third aspect. Exemplarily, the communication device is a chip provided in a communication device. Exemplarily, the communication device is a network device. Wherein, the transceiver is realized by, for example, an antenna, a feeder, a codec in the communication device, or, if the communication device is a chip set in the communication device, the transceiver is, for example, a communication interface in the chip. It is connected with the radio frequency transceiving component in the communication equipment to realize the transmission and reception of information through the radio frequency transceiving component. Wherein, the transceiver is configured to receive a first message from a second terminal device, and the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices , Or, the first message is used to trigger the network device to reconfigure the first resource pool, the resources included in the first resource pool are used for sending CSI, or the resources included in the first resource pool are used for the sending side Uplink data; the processor is used to reconfigure the first resource pool to obtain a second resource pool.

With reference to the eleventh aspect, in a possible implementation manner of the first usage aspect, the transceiver is further configured to send the information of the second resource pool to the second terminal device, or send the The information of the second resource pool is sent to the second terminal device and the first terminal device.

Regarding the technical effects brought about by the various possible implementations of the eleventh aspect or the eleventh aspect, reference may be made to the introduction of the technical effects of the third aspect or the corresponding implementation manners of the third aspect.

In a twelfth aspect, an eighth communication device is provided. The communication device is, for example, the fourth communication device as described above. The communication device includes a processor and a transceiver, and the processor and the transceiver are coupled with each other to implement the methods described in the foregoing fourth aspect or various possible designs of the fourth aspect. Exemplarily, the communication device is a chip provided in a communication device. Exemplarily, the communication device is a network device. Wherein, the transceiver is realized by, for example, an antenna, a feeder, a codec in the communication device, or, if the communication device is a chip set in the communication device, the transceiver is, for example, a communication interface in the chip. It is connected with the radio frequency transceiving component in the communication equipment to realize the transmission and reception of information through the radio frequency transceiving component. Wherein, the transceiver is configured to receive a first message from a second terminal device, and the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices , Or, the first message is used to trigger the network device to re-select resources for sending CSI, the resources included in the first resource pool are used for sending CSI, or the resources included in the first resource pool are used for Send side uplink data; the processor is configured to reselect a resource for sending CSI to obtain a second resource.

With reference to the twelfth aspect, in a possible implementation manner of the twelfth aspect, the transceiver is further configured to send information about the second resource to the second terminal device, or to send the The information of the second resource is sent to the second terminal device and the first terminal device.

Regarding the technical effects brought about by the twelfth aspect or various possible implementation manners of the twelfth aspect, reference may be made to the introduction of the technical effects of the fourth aspect or the corresponding implementation manners of the fourth aspect.

The thirteenth aspect provides a ninth communication device. The communication device may be the first communication device in the above method design. Exemplarily, the communication device is a chip provided in a communication device. Exemplarily, the communication device is a terminal device. Exemplarily, the terminal device is a first terminal device. The communication device includes: a memory for storing computer executable program codes; and a processor, which is coupled with the memory. The program code stored in the memory includes instructions, and when the processor executes the instructions, the ninth communication device executes the foregoing first aspect or the method in any one of the possible implementations of the first aspect.

Wherein, the ninth type of communication device may further include a communication interface, which may be a transceiver in the first terminal device, for example, implemented by the antenna, feeder, and codec in the communication device, or if the ninth If the communication device is a chip provided in the first terminal device, the communication interface may be an input/output interface of the chip, such as input/output pins.

The fourteenth aspect provides a tenth communication device. The communication device may be the second communication device in the above method design. Exemplarily, the communication device is a chip provided in a communication device. Exemplarily, the communication device is a terminal device. Exemplarily, the terminal device is a second terminal device. The communication device includes: a memory for storing computer executable program codes; and a processor, which is coupled with the memory. The program code stored in the memory includes instructions, and when the processor executes the instructions, the ninth communication device executes the foregoing second aspect or the method in any one of the possible implementation manners of the second aspect.

Wherein, the tenth type of communication device may also include a communication interface, which may be a transceiver in the second terminal device, for example, implemented by the antenna, feeder, and codec in the communication device, or if the tenth If the communication device is a chip provided in the second terminal device, the communication interface may be an input/output interface of the chip, such as input/output pins.

In a fifteenth aspect, an eleventh communication device is provided. The communication device may be the third communication device in the above method design. Exemplarily, the communication device is a chip provided in a communication device. Exemplarily, the communication device is a network device. The communication device includes: a memory for storing computer executable program codes; and a processor, which is coupled with the memory. The program code stored in the memory includes instructions, and when the processor executes the instructions, the ninth communication device executes the foregoing third aspect or the method in any one of the possible implementation manners of the third aspect.

Wherein, the eleventh type of communication device may also include a communication interface, which may be a transceiver in a network device, for example, implemented by the antenna, feeder, and codec in the communication device, or if the eleventh If the communication device is a chip set in a network device, the communication interface may be an input/output interface of the chip, such as input/output pins.

The sixteenth aspect provides a twelfth communication device. The communication device may be the fourth communication device in the above method design. Exemplarily, the communication device is a chip provided in a communication device. Exemplarily, the communication device is a network device. The communication device includes: a memory for storing computer executable program codes; and a processor, which is coupled with the memory. The program code stored in the memory includes instructions, and when the processor executes the instructions, the ninth communication device executes the foregoing fourth aspect or any one of the possible implementation methods of the fourth aspect.

Wherein, the twelfth type of communication device may also include a communication interface. The communication interface may be a transceiver in a network device, for example, implemented by the antenna, feeder, and codec in the communication device, or if the twelfth type of communication device If the communication device is a chip set in a network device, the communication interface may be an input/output interface of the chip, such as input/output pins.

In a seventeenth aspect, a first communication system is provided. The communication system may include the first communication device described in the fifth aspect, the fifth communication device described in the ninth aspect, or the ninth communication device described in the thirteenth aspect. A communication device includes the second communication device according to the sixth aspect, the sixth communication device according to the tenth aspect, or the tenth communication device according to the fourteenth aspect, and the communication device according to the seventh aspect The third communication device, the seventh communication device according to the eleventh aspect, or the eleventh communication device according to the fifteenth aspect.

In an eighteenth aspect, a second communication system is provided. The communication system may include the first communication device described in the fifth aspect, the fifth communication device described in the ninth aspect, or the ninth communication device described in the thirteenth aspect. A communication device includes the second communication device according to the sixth aspect, the sixth communication device according to the tenth aspect, or the tenth communication device according to the fourteenth aspect, and the communication device according to the eighth aspect The fourth communication device, the eighth communication device according to the twelfth aspect, or the twelfth communication device according to the sixteenth aspect.

The first communication system and the second communication system may be the same communication system, or they may be different communication systems.

In a nineteenth aspect, a computer storage medium is provided. The computer-readable storage medium stores instructions that, when run on a computer, cause the computer to execute the first aspect or any one of the possible designs of the first aspect. The method described in.

In a twentieth aspect, a computer storage medium is provided. The computer-readable storage medium stores instructions that, when run on a computer, cause the computer to execute the above-mentioned second aspect or any one of the possible designs of the second aspect The method described in.

In a twenty-first aspect, a computer storage medium is provided. The computer-readable storage medium stores instructions that, when run on a computer, cause the computer to execute the third aspect or any one of the possibilities of the third aspect. The method described in the design.

In a twenty-second aspect, a computer storage medium is provided. The computer-readable storage medium stores instructions that, when run on a computer, cause the computer to execute any one of the foregoing fourth aspect or the fourth aspect. The method described in the design.

In a twenty-third aspect, a computer program product containing instructions is provided. The computer program product stores instructions that, when run on a computer, cause the computer to execute the first aspect or any one of the first aspects. The method described in the design.

In a twenty-fourth aspect, a computer program product containing instructions is provided. The computer program product stores instructions, which when run on a computer, cause the computer to execute the second aspect or any one of the second aspects mentioned above. The method described in the design.

In a twenty-fifth aspect, a computer program product containing instructions is provided. The computer program product stores instructions that, when run on a computer, cause the computer to execute the third aspect or any one of the third aspects. The method described in the design.

In a twenty-sixth aspect, a computer program product containing instructions is provided. The computer program product stores instructions that, when run on a computer, cause the computer to execute any one of the fourth aspect or the fourth aspect. The method described in the design.

The embodiments of the present application are applicable to NR-V2X communication or subsequent evolved V2X communication, such as version (Rel)-14/15/16 version of V2X communication.

In the embodiment of the present application, a first resource pool is configured for the terminal device. When the first terminal device needs to send CSI, it can select a resource to send from the first resource pool, which provides a new mechanism for sending CSI.

Description of the drawings

Figure 1 is a schematic diagram of some scenes of V2X;

Figure 2 is a schematic diagram of an application scenario of an embodiment of the application;

FIG. 3 is a flowchart of a method for sending, receiving CSI, and configuring resources according to an embodiment of the application;

FIG. 4 is a schematic block diagram of a first terminal device of the first type according to an embodiment of this application;

FIG. 5 is another schematic block diagram of the first terminal device of the first type according to an embodiment of this application;

FIG. 6 is a schematic block diagram of a first type of second terminal device according to an embodiment of this application;

FIG. 7 is another schematic block diagram of the first type of second terminal device according to an embodiment of this application;

FIG. 8 is a schematic block diagram of the first network device provided by an embodiment of this application;

FIG. 9 is another schematic block diagram of the first network device provided by an embodiment of this application;

FIG. 10 is a schematic block diagram of a second type of network device provided by an embodiment of this application;

FIG. 11 is another schematic block diagram of a second type of network device provided by an embodiment of this application;

FIG. 12 is a schematic block diagram of a communication device provided by an embodiment of this application;

FIG. 13 is another schematic block diagram of a communication device provided by an embodiment of this application;

FIG. 14 is still another schematic block diagram of the communication device provided by an embodiment of the application.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

Hereinafter, some terms in the embodiments of the present application will be explained to facilitate the understanding of those skilled in the art.

1) Terminal devices, including devices that provide users with voice and/or data connectivity, such as handheld devices with wireless connection functions, or processing devices connected to wireless modems. The terminal device can communicate with the core network via a radio access network (RAN), and exchange voice and/or data with the RAN. The terminal equipment may include a vehicle (vehicle), a vehicle module (vehicle module), user equipment (user equipment, UE), wireless terminal equipment, mobile terminal equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), mobile station (mobile), remote station (remote station), access point (AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), or user equipment (user device), etc. For example, it may include mobile phones (or "cellular" phones), computers with mobile terminal equipment, portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, smart wearable devices, and so on. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (personal digital assistants, etc.) PDA), and other equipment. It also includes restricted devices, such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.

As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices. It is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones. Use, such as various smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.

The terminal device of the embodiment of the present application may also be an on-board module, on-board module, on-board component, on-board chip, or on-board unit that is built into a vehicle as one or more components or units. A group, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit may implement the method of the embodiments of the present application.

2) Network equipment, such as access network (AN) equipment, such as a base station (e.g., access point), may refer to equipment that communicates with wireless terminal equipment through one or more cells on the air interface in the access network Or, for example, a network device in a V2X technology is a roadside unit (RSU). The base station can be used to convert the received air frame and Internet Protocol (IP) packets to each other, as a router between the terminal device and the rest of the access network, where the rest of the access network may include an IP network. The RSU can be a fixed infrastructure entity that supports vehicle-to-everything (V2X) applications, and can exchange messages with other entities that support V2X applications. The access network equipment can also coordinate the attribute management of the air interface. For example, the access network equipment may include a long-term evolution (LTE) system or an evolved base station (NodeB or eNB or e-NodeB, evolutional NodeB) in a long term evolution-advanced (LTE-A) system. ), or it may also include the next generation node B (gNB) in the new radio (NR) system of the 5th generation (5G) mobile communication technology (the 5th generation, 5G), or it may also include cloud access The centralized unit (CU) and distributed unit (DU) in the cloud radio access network (Cloud RAN) system are not limited in this embodiment of the application.

Of course, the network equipment may also include core network equipment, but because the technical solutions provided by the embodiments of this application mainly involve access network equipment, in the following text, unless otherwise specified, the “network equipment” described below is all Refers to the access network equipment.

3) Sidelink. In the LTE system, both device-to-device (D2D) communication and V2X communication belong to the process of terminal devices communicating with other terminal devices through the sidelink interface. Both D2D and V2X are communication based on the PC5 interface, and the resources used by the two can be collectively referred to as sidelink resources.

4) V2X, specifically including vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P) direct connection Communication and vehicle-to-network (V2N) communication interaction and other application requirements. As shown in Figure 1. V2V refers to the communication between vehicles; V2P refers to the communication between vehicles and people (including pedestrians, cyclists, drivers, or passengers); V2I refers to the communication between vehicles and network equipment, such as RSU, and There is another type of V2N that can be included in V2I. V2N refers to the communication between the vehicle and the base station/network.

Among them, RSU includes two types: terminal type RSU, because it is located on the roadside, the terminal type RSU is in a non-mobile state, and there is no need to consider mobility; base station type RSU can provide timing synchronization for vehicles communicating with it And resource scheduling.

V2X can rely on the LTE system, that is, LTE-V2X technology, or V2X can also rely on the NR system, that is, NR-V2X technology. In LTE-V2X technology, sidelink uses a broadcast mechanism, there is no unicast process between terminal devices, so there is no measurement-feedback process involved, for example, it does not involve one terminal device sending CSI to another terminal device. process. The NR-V2X technology will support the unicast process between terminal devices, so the embodiments of this application mainly discuss NR-V2X.

5) The terms "system" and "network" in the embodiments of this application can be used interchangeably. "At least one" means one or more, and "plurality" means two or more. "And/or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects are in an "or" relationship. "The following at least one item (a)" or similar expressions refers to any combination of these items, including any combination of a single item (a) or plural items (a). For example, at least one item (a) of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .

And, unless otherwise stated, the ordinal numbers such as "first" and "second" mentioned in the embodiments of this application are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or order of multiple objects. Importance. For example, the first identifier and the second identifier are only for distinguishing different identifiers, but do not indicate the difference in content, priority, or importance of the two identifiers.

Some concepts related to the embodiments of the present application are introduced as above, and the technical features of the embodiments of the present application are introduced below.

Wireless communication technology has experienced rapid development in the past few decades. It has successively experienced the first generation of wireless communication systems based on analog communication systems, and the second generation of mobile communication systems represented by the global system for mobile communication (GSM). Communication technology (the 2nd generation, 2G) wireless communication system, the third generation mobile communication technology (the 3rd generation, 3G) wireless communication system represented by wideband code division multiple access (WCDMA), and then The LTE fourth-generation mobile communication technology (the 4th generation, 4G) wireless communication system has been widely commercialized all over the world and has achieved great success. The services supported by the wireless communication system have also evolved from the initial voice and text messages to now support wireless high-speed data communication. At the same time, the number of wireless connections around the world is experiencing continuous rapid growth, and a variety of new wireless service types are also emerging in large numbers, such as the Internet of Things, autonomous driving, etc., which are important for next-generation wireless communication systems, such as NR systems. , Put forward higher requirements.

In NR-V2X, two air interfaces are defined. The first is called Uu. The data link transmitted on the Uu port is called the uplink and the downlink. The Uu port defines the communication protocol between the terminal equipment and the base station. . The second type is called PC5. The data link transmitted on the PC5 port is called sidelink. The PC5 port defines the communication protocol between the terminal device and the terminal device.

The Uu port defines a transmission protocol similar to the uplink and downlink in the NR system. In terms of frequency band allocation, bandwidth, frame structure, transmission mode, or signaling definition, it basically follows the uplink and downlink transmission protocol of the NR system, and adds Some dedicated signaling for V2X. The PC5 port will have some different designs in the above aspects. For example, in terms of frequency bands, it may consider multiplexing the uplink frequency band of the NR system, or may use an unlicensed frequency band; in terms of frame structure and pilot frequency, it will consider using dedicated Frame structure and pilot design; in terms of beam management and multiple-input multiple-output (MIMO), it will be simplified based on the design of the NR system.

In sidelink communication, two behavior modes of terminal equipment are specified, namely mode-1 and mode-2. The difference between them is that for terminal equipment in mode-1, resource scheduling is performed by the base station during communication; while for terminal equipment in mode-2, resource scheduling is performed by terminal equipment during communication, for example, the base station may be configured in advance Resource pool, the terminal device selects resources from the resource pool when communicating.

For V2X communication CSI acquisition, it supports channel quality information (channel quality information, CQI)/rank indication (rank indication, RI) reporting, and CQI and RI are always reported together. The reporting of precoding matrix indication (PMI) is not supported in the R16WI phase. For multi-rank physical sidelink shared channels (PSSCH) transmission, a maximum of 2 antenna ports are supported;

In the side link, CSI is transmitted in the PSSCH (including the PSSCH containing only CSI), and the resource allocation process of data transmission is used.

According to the above standards, the current RI only supports 2 antenna ports, so the number of bits of the RI is 1 (bit). There is a high probability that CQI will reuse the CQI table of NR Uu, so the number of bits occupied by CQI is 4 bits. Therefore, the current number of information bits reported by CSI has the following two situations:

If a 1-bit RI indicates rank=1, a CQI with a size of 4 bits needs to be fed back, and the total CSI is 5 bits;

If a 1-bit RI indicates rank=2, two CQIs with a size of 4 bits need to be fed back, and the CSI is 9 bits in total.

Supports transmission of CSI-RS on the side link, and CSI-RS can be used for at least CQI and RI measurement. However, the transmission of CSI-RS on the side link needs to be limited to the transmission of PSSCH. And only when there is data to be sent, it will be carried by the PSSCH for transmission, so this regulation implies that CSI-RS will only be sent with the data, so the CSI-RS transmission may be aperiodic. The measurement and CSI reporting based on aperiodic CSI-RS can only be aperiodic.

In the NR system, terminal equipment is supported to report CSI to the base station. Specifically, the base station first determines the information of the resource carrying the reference signal, and sends measurement configuration information to the terminal device. The measurement configuration information includes information about the resource carrying the reference signal, and may also include information about the resource used by the terminal device to send CSI to the base station. , And information including the conditions for reporting CSI. After that, the base station can send the reference signal to the terminal device. After receiving the measurement configuration information, the terminal device receives the reference signal on the resource carrying the reference signal indicated by the measurement configuration information, measures the reference signal, and when the reporting condition indicated by the measurement configuration information is met, the measurement configuration information is configured Resources used to send CSI, send CSI to the base station.

It can be seen that currently at the NR Uu port, the scheduling process for CSI reporting is performed by the base station. However, in mode-2 of NR-V2X, for terminal equipment in mode-2, the base station may configure a resource pool in advance. When the terminal equipment communicates, it selects resources from the resource pool, that is, in the communication process of the terminal equipment , The base station will not directly schedule terminal equipment. Therefore, the current CSI reporting method cannot be applied to mode-2 of NR-V2X. For mode-2 of NR-V2X, it is necessary to discuss the new transmission mechanism of CSI.

In view of this, the method provided in the embodiment of the present application is provided. In the embodiment of this application, a first resource pool is configured for the terminal device. When the first terminal device needs to send CSI, it can select a resource to send from the first resource pool. That is, the embodiment of this application provides a New mechanism for sending CSI. And the first resource pool may be a resource pool for sending side link data. For example, the resource pool configured for terminal equipment for sending side link data may be directly used as a resource pool for CSI, without additional configuration resources. It is relatively simple to send CSI from the pool. Alternatively, the first resource pool may be a resource pool used to send CSI, which is equivalent to a new resource pool specially configured for CSI, so that the resource pool is dedicated to sending CSI, which can minimize resource selection conflicts between CSI and data.

The technical solutions provided in the embodiments of this application can be applied to sidelink scenarios, such as device-to-device (D2D) scenarios, NR-D2D scenarios or LTE-D2D scenarios, etc., or for example, V2X scenarios. It is an NR-V2X scene, it can also be an LTE-V2X scene, or it can be a V2X scene that is subsequently evolved. For example, it can be applied to the fields of Internet of Vehicles, intelligent networked cars or autonomous driving. Or, the technical solutions provided in the embodiments of the present application may also be applied to other scenarios or other communication systems, and there is no specific limitation. In the introduction process of the embodiments of this application, the NR-V2X scenario is mainly taken as an example.

The following describes the network architecture applied by the embodiments of the present application. Please refer to FIG. 2, which is a network architecture applied in the embodiment of this application.

Figure 2 includes a network device and two terminal devices, namely terminal device 1 and terminal device 2. Both of these terminal devices can be covered by the network device, or only the terminal device 1 can be covered by the network device. Next, the terminal device 2 is not under the coverage of the network device, or the two terminal devices may also be under the coverage of different network devices, or neither of the two terminal devices may be under the coverage of the network device. The two terminal devices can communicate through sidelink. Fig. 2 takes as an example that the two terminal devices are both under the coverage of one network device shown in Fig. 2. Among them, the two terminal devices are both V2X terminal devices. Of course, the number of terminal devices in Figure 2 is just an example. In actual applications, network devices can provide services for multiple terminal devices.

The network device in FIG. 2 is, for example, an access network device, such as a base station, or may also be an RSU, etc. The base station is taken as an example in FIG. 2. Among them, the access network equipment corresponds to different equipment in different systems. For example, in the 4th generation (4G) system, it can correspond to the eNB, and in the 5G system, it corresponds to the access network equipment in 5G, such as gNB. . If the technical solution provided by the embodiments of the present application is applied to a future communication system, the network device may also be an access network device in the future communication system. Of course, the network device may also be other devices, such as RSU.

Wherein, the terminal device in FIG. 2 is a vehicle-mounted terminal device or a car as an example, but the terminal device in the embodiment of the present application is not limited to this.

The following describes the technical solutions provided by the embodiments of the present application in conjunction with the drawings. In the embodiments of the present application, the "resource pool" may also be referred to as a "resource collection", or may also have other names, which are not specifically limited.

The embodiment of the present application provides a first communication method. Please refer to FIG. 3, which is a flowchart of the method. In the following introduction process, the application of this method to the network architecture shown in FIG. 2 is taken as an example. In addition, the method can be executed by three communication devices, such as the first communication device, the second communication device, and the third communication device. The first communication device can be a network device or can support a network device to implement the The communication device with the functions required by the method, or the first communication device may be a terminal device or a communication device capable of supporting the terminal device to realize the functions required by the method, and of course it may also be other communication devices, such as a chip system. The second communication device may be a network device or a communication device capable of supporting the network device to implement the functions required by the method, or the second communication device may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, of course It may also be other communication devices, such as a chip system. The same is true for the third communication device. The third communication device may be a network device or a communication device capable of supporting the functions required by the network device to implement the method, or the third communication device may be a terminal device or capable of supporting the terminal device to implement the method. The communication device with the required functions can of course also be other communication devices, such as a chip system. And there are no restrictions on the implementation of the first communication device, the second communication device, and the third communication device. For example, the first communication device may be a network device, the second communication device is a network device, and the third communication device is a terminal device. Or the first communication device, the second communication device, and the third communication device are all network devices, or the first communication device, the second communication device, and the third communication device are all terminal devices, or the first communication device is a network device. The second communication device is a network device, and the third communication device is a chip system that can support the terminal device to implement the functions required by the method, and so on. Among them, the network equipment is, for example, a base station.

For ease of introduction, in the following, the method is executed by the network device and the terminal device as an example, that is to say, the first communication device is a terminal device (hereinafter also referred to as the first terminal device), and the second communication device is a terminal device. The device (hereinafter also referred to as the second terminal device) and the third communication device are examples of network devices. Because this embodiment is applied to the network architecture shown in FIG. 2 as an example, the first terminal device described below may be the terminal device 1 in the network architecture shown in FIG. 2, and the first terminal device described below may be The second terminal device may be the terminal device 2 in the network architecture shown in FIG. 2; or, the first terminal device described below may be the terminal device 2 in the network architecture shown in FIG. The second terminal device may be the terminal device 1 in the network architecture shown in FIG. 2. In addition, the network device described in the following may be a network device in the network architecture shown in FIG. 2.

S31. The first terminal device selects a first resource from a first resource pool, where the resources included in the first resource pool are used to send CSI, or the resources included in the first resource pool are used to send side link data, so The first resource is used to send CSI.

Before S31, the second terminal device may first send the CSI-RS to the first terminal device. For example, the second terminal device may send a CSI-RS to the first terminal device through the PSSCH when sending data to the second terminal device. After the first terminal device receives the CSI-RS from the second terminal device, it can measure according to the CSI-RS, so that the CSI can be obtained, for example, the first CSI. Before the second terminal device sends the CSI-RS to the terminal device, the second terminal device may also send measurement configuration information to the first terminal device. The measurement configuration information may indicate the information of the resource carrying the CSI-RS, and may also indicate the first terminal The transmission conditions of the device for CSI, etc. After the first terminal device receives the measurement configuration information from the second terminal device, it can receive the CSI-RS from the second terminal device according to the indication of the measurement configuration information. After measuring according to the CSI-RS and obtaining the first CSI, the first CSI may be sent to the second terminal device through the first resource when the CSI sending condition indicated by the measurement configuration information is satisfied. The first resource is not scheduled by the second terminal device, but selected by the first terminal device. This method meets the requirements of NR-V2X mode-2.

The measurement configuration information may include at least one of the following or any combination thereof: measurement object, report configuration information, measurement identifier, quantity configuration information, measurement interval, report resource information, or report method information. Of course, in addition to the above several kinds of information, the measurement configuration information may also include other information, or the measurement configuration information does not include the above several kinds of information, but includes other information, which is not specifically limited.

The measurement object may include a combination of one or a group of time-frequency resources and the identification number (ID) of the target cell (cell). For example, if a measurement object is bandwidth (band1)+cell 1, it indicates that the first terminal device is instructed to measure cell 1 of band1.

Reporting configuration information refers to the sending condition of CSI. It can be understood that when the first terminal device sends CSI to the second terminal device, it needs to meet the condition corresponding to the reporting configuration information. For example, the reported configuration information may include one or any combination of the following: trigger conditions for sending CSI, reference signal used, format of sending CSI (for example, reference signal received power of each cell or each beam) (reference signal received power, RSRP), or the maximum number of cells or beams corresponding to CSI).

For a measurement object, the first terminal device may only measure once, or may measure multiple times. If multiple measurements are performed and multiple measurement results need to be sent through one CSI, then a measurement identifier can be added to the measurement object, and one measurement identifier corresponds to one measurement result to distinguish multiple measurement results.

Quantity configuration can be understood as parameter configuration, which is to configure the specific parameters that the first terminal device needs to send. These parameters include, for example, at least one of RSRP, CQI, RI, or PMI, and of course, may also include other parameters.

The measurement interval includes, for example, synchronization signal block measurement timing configuration information (SS blocks measurement timing configuration, SMTC). The measurement interval is mainly for the terminal equipment to measure the synchronous signal block (synchronous signal block, SSB). For example, one SMTC is generally configured for a frequency. SMTC can be understood as a time window for measurement. An SMTC can be used in the time domain. Including the SSB sent by each cell under the frequency corresponding to the SMTC. However, the reference signal involved in the embodiment of the present application is mainly a CSI-RS, so the measurement interval is not described in detail.

Reporting resource information refers to resource information used by the first terminal device to send CSI to the second terminal device. For example, the resources that can be used by the first terminal device to send CSI to the second terminal device may be PSSCH resources or other resources.

The reporting mode information refers to information about the mode used by the first terminal device to send CSI to the second terminal device. For example, when the first terminal device sends CSI to the second terminal device, it may be sent periodically, or aperiodicly, or semi-continuously, and so on.

The embodiment of the present application takes the mode-2 of NR-V2X as an example. Therefore, the terminal device needs to select resources from the resource pool when sending data through the side link. In mode-2, the terminal device is generally configured with a resource pool for sending side uplink data, or in other words, a resource pool for sending PSSCH is configured for the terminal device. For example, a network device can configure a resource pool for sending side-link data to a terminal device in a broadcast manner, or a resource pool used to send side-link data can also be specified by an agreement, without the network device sending corresponding information .

The embodiment of the present application proposes that when a terminal device sends CSI through a side link, it can also select a resource from a resource pool, for example, the resource pool is called the first resource pool. There can be different implementations of the first resource pool, which are introduced separately below.

As an optional implementation manner of the first resource pool, the first resource pool may be a resource pool used to send side link data, or in other words, the resources included in the first resource pool may be used to send side link data. data. Because on the side link, CSI can be treated as data, so when the first terminal device sends CSI, it can directly select resources in the resource pool used to send side link data. In this way, there is no need to configure additional resource pools for CSI, which reduces the operation process of configuring resource pools. That is, terminal devices or network devices can select resources from the resource pool used to transmit side link data. Transmit CSI. The first resource pool may be a resource pool predefined by the protocol, or a resource pool configured by a network device. If the resources included in the first resource pool are used to send side link data, it can be understood that the first resource pool itself is a resource pool used to send side link data, but the embodiment of the present application may use the first resource Pools are multiplexed, that is, through the first resource pool, in addition to sending side link data, CSI can also be sent. Of course, for a certain resource included in the first resource pool, at the same time, It can only be used to send side uplink data or to send CSI, and cannot send both side uplink data and CSI at the same time. In this case, the first resource is used to send CSI (here, CSI is the first CSI), or it is understood that the first terminal device selects the first resource from the first resource pool to send the first CSI, or In other words, when the first terminal device needs to send the first CSI, it selects the first resource from the first resource pool.

If the first resource pool is a resource pool for sending side link data. Then, the first terminal device may select resources from the first resource pool when it only needs to send CSI. For example, the first terminal device only needs to send the first CSI without sending the side link data, and the first terminal device selects the first resource from the first resource pool to send the first CSI.

Or, the first terminal device may select a resource from the first resource pool when it only needs to send side link data. For example, the first terminal device only needs to send the first side link data without sending CSI, and the first terminal device selects resources from the first resource pool to send the first CSI.

Alternatively, the first terminal device may also select resources from the first resource pool when it needs to send data and CSI at the same time. For example, at a certain moment, the first terminal device needs to simultaneously send the first CSI to the second terminal device and the first side uplink data to the third terminal device. Then, the first terminal device may select the first resource from the first resource pool to send the first CSI to the second terminal device, and select one or more resources other than the first resource from the first resource pool to the third terminal. The device sends the first side uplink data; or, the first terminal device may also select a third resource from the first resource pool, and send the first CSI to the second terminal device through the first resource in the third resource, and through All or part of the resources in the third resource except the first resource sends the first side uplink data to the third terminal device. It is equivalent to that the first terminal device first selects the third resource from the first resource pool, and then uses a part of the third resource (the first resource) to send the first CSI, and the other part of the third resource The resource is used to send the first side uplink data, so that the selected resource for sending CSI and the resource for sending side uplink data do not conflict.

Or for example, at a certain moment, the first terminal device needs to simultaneously send the first CSI and the first side uplink data to the second terminal device. Then, the first terminal device can select the first resource from the first resource pool to send the first CSI to the second terminal device, and select one or more resources other than the first resource from the first resource pool to the second terminal. The device sends the first side uplink data; or, the first terminal device may also select a third resource from the first resource pool, and send the first CSI to the second terminal device through the first resource in the third resource, and through All or part of the resources in the third resource except the first resource sends the first side uplink data to the second terminal device. It is equivalent to that the first terminal device first selects the third resource from the first resource pool, and then uses a part of the third resource (the first resource) to send the first CSI, and the other part of the third resource The resource is used to send the first side uplink data, so that the selected resource for sending CSI and the resource for sending side uplink data do not conflict. The first terminal device may simultaneously send CSI and sidelink data to one terminal device, or the first terminal device may also simultaneously send CSI and sidelink data to different terminal devices, which is not specifically limited.

If the resource pool used to send side link data is used as the first resource pool, then the first resource pool includes time-frequency resources. Therefore, the first terminal device selects resources in the first resource pool, and the time-frequency resource is selected. Therefore, there is no need to configure additional time domain resources for sending CSI.

Or, as another optional implementation manner of the first resource pool, the first resource pool may also be a resource pool used to send CSI, or in other words, resources included in the first resource pool are used to send CSI. It can be understood that, in addition to the resource pool used to send side link data, the terminal device is additionally configured with a first resource pool dedicated to sending CSI. This first resource pool may be a resource pool predefined by the protocol, or It can be a resource pool configured by a network device. Therefore, the terminal device can select resources from the resource pool used to send side uplink data when sending side uplink data, and can select resources from the first resource pool when sending CSI, which helps to reduce The collision between the resource for sending data and the resource for sending CSI. If the resources included in the first resource pool are used to send CSI, then the first resources included in the first resource pool are also used to send CSI.

Wherein, the first resource pool may be a subset of the resource pool used to send side link data.

Alternatively, the first resource pool and the resource pool used for sending side link data may have an intersection, but they are not completely the same. For example, the first resource pool and the resource pool for sending side link data both include resource 1, and the first resource pool includes resource 2, and the resource pool for sending side link data does not include resource 2; or, Both the first resource pool and the resource pool for sending side link data include resource 1, but the first resource pool does not include resource 3, and the resource pool for sending side link data includes resource 3; or, first Both the resource pool and the resource pool for sending side link data include resource 1, the first resource pool includes resource 2, the resource pool for sending side link data does not include resource 2, and the first resource pool does not include Resource 3. The resource pool used for sending side link data includes resource 3.

Or, the first resource pool and the resource pool used for sending side link data may not have an intersection, and they are two completely different resource pools.

Specifically, there is no restriction on the relationship between the first resource pool and the resource pool used to send side link data.

If the first resource pool is a resource pool used to send side link data, then the first resource pool may be configured with cell granularity, that is, a first resource pool is configured for a cell, then the cell All terminal devices in the CSI can select resources from the first resource pool when they need to send CSI. For example, the first resource pool may be configured by a network device by sending a broadcast message. The broadcast message is, for example, a system message, or may also be other messages. Or, the resource pool can also be configured through a protocol, and there is no specific limitation.

Or, if the first resource pool is a resource pool dedicated to sending CSI, the first resource pool may also be configured with cell granularity, for example, that is, a first resource pool may be configured for a cell, then the cell All terminal devices in the CSI can select resources from the first resource pool when they need to send CSI. For example, the first resource pool may be configured by a network device by sending a broadcast message. The broadcast message is, for example, a system message, or may also be other messages. The configuration of the first resource pool by the network device may be more flexible. For example, the first resource pool configured by the network device may be different in different situations. Or the resource pool can also be configured through a protocol, such as protocol configuration, whether it is a terminal device within or outside the coverage of a network device, as long as it is in mode-2 of NR-V2X, You can use the first resource pool; or protocol configuration. For terminal devices within the coverage of network devices, if they are in mode-2 of NR-V2X, resource pool 1 can be used, and for those not in network devices If the terminal device in the coverage area is in mode-2 of NR-V2X, resource pool 2 can be used. If the terminal device is in the coverage area of the network device and is in mode-2 of NR-V2X, the resource can be determined Pool 1 is the first resource pool, and if the terminal device is not within the coverage of the network device and is in mode-2 of NR-V2X, it can be determined that resource pool 2 is the first resource pool. The first resource pool is specified through the protocol, so that the network device does not need to notify the information of the first resource pool again, which helps to save signaling overhead.

If the first resource pool is a resource pool dedicated to sending CSI, then the first resource pool may include only frequency domain resources and not time domain resources, that is, the first resource pool is a frequency domain resource pool. In this case, the terminal device can only select frequency domain resources from the first resource pool. To send CSI, time domain resources are also required, so the second terminal device can configure time domain resources for the first terminal device, and the second terminal device is the receiving device of the CSI to be sent by the first terminal device. For example, the second terminal device sends the first configuration information to the first terminal device, and the first configuration information can be used to configure the feedback time information, and the first terminal device can send the CSI at the time indicated by the feedback time information. For example, the second terminal device may send feedback time information to the first terminal device through sidelink control information (SCI), or may also send an RRC message to the first terminal device through the PC5 port to change the feedback time The information is sent to the first terminal device. Wherein, the first configuration information can be used to configure multiple feedback time information, for example, one feedback time information indicates a time. If multiple feedback time information is configured in the first configuration information, then the first terminal device can send CSI from One feedback time information is selected from the multiple feedback time information, and the CSI is sent at the time indicated by the selected feedback time information.

If the second terminal device is a half-duplex device, then if the time when the first terminal device sends CSI is unknown, the second terminal device needs to spare every possible time to frequently detect CSI, which will affect the second terminal device The opportunity to send data. The second terminal device configures the feedback time information, and the time at which the first terminal device may send CSI is known to the second terminal device. Then the second terminal device only needs to blindly detect the CSI on the frequency, and There is no need to spare every possible time to frequently detect CSI, so as to minimize the impact on the opportunity of the second terminal device to send data, and also reduce the power consumption of the second terminal device due to the detection of CSI.

Or, if the first resource pool is a resource pool dedicated to sending CSI, then the first resource pool may also include time-frequency resources, so that when the first terminal device needs to send CSI, the resource selected from the first resource pool is Time-frequency resources, without the need to determine time-domain resources in other ways, this method is relatively simple.

S32. The second terminal device determines the first resource pool, and the resources included in the first resource pool are used to send CSI, or the resources included in the first resource pool are used to send side link data.

The second terminal device is the receiving end of the CSI sent by the first terminal device. To receive the CSI from the first terminal device, the second terminal device needs to first determine the first resource pool, so that detection can be performed on the resources indicated by the first resource pool.

S33. The first terminal device sends the first CSI to the second terminal device through the first resource, and the second terminal device performs detection on the resource indicated by the first resource pool, and passes the first resource included in the first resource pool. The resource receives the first CSI from the first terminal device.

Wherein, the step of sending the first CSI to the second terminal device by the first terminal device through the first resource may occur simultaneously with S32, or the step of sending the first CSI to the second terminal device by the first terminal device through the first resource may be It occurs before S32, or the step of sending the first CSI to the second terminal device through the first resource by the first terminal device may occur after S32. However, the step of detecting the resources indicated by the first resource pool by the second terminal device and receiving the first CSI from the first terminal device through the first resource included in the first resource pool should occur after S32.

For example, the resource selected by the first terminal device in the first resource pool is called the first resource, and the first terminal device may send the first CSI through the first resource. In the embodiment of the present application, the first CSI may include CQI and RI, and may also include PMI in future technologies, and of course, may also include some other information, which is not specifically limited.

According to the above introduction, the resources included in the first resource pool can be time-frequency resources, and the first resource is also time-frequency resources; or, the first resource pool can also only include frequency-domain resources, so the first resource is also Only frequency domain resources. If the first resource is a frequency domain resource, the second terminal device can also indicate the feedback time information through the first configuration information. In this case, the first terminal device can pass the first resource at the time indicated by the feedback time information. Send the first CSI to the second terminal device.

In the embodiment of this application, a first resource pool is configured for the terminal device. When the first terminal device needs to send CSI, it can select a resource to send from the first resource pool. That is, the embodiment of this application provides a New mechanism for sending CSI. And the first resource pool may be a resource pool for sending side link data. For example, the resource pool configured for terminal equipment for sending side link data may be directly used as a resource pool for CSI, without additional configuration resources. It is relatively simple to send CSI from the pool. Alternatively, the first resource pool may be a resource pool used to send CSI, which is equivalent to a new resource pool specially configured for CSI, so that the resource pool is dedicated to sending CSI, which can minimize resource selection conflicts between CSI and data.

As described above, the first resource pool may be the resource pool used to send side link data, or although the first resource pool is the resource pool used to send CSI, the first resource pool may be used to send side link data. A subset of the resource pool of the link data, or the first resource pool and the resource pool used to send the side link data may have an intersection. The first resource pool can be configured at the granularity of the cell. Similarly, the resource pool used to send side link data is also configured at the granularity of the cell, so there are multiple terminal devices in the first resource pool. When selecting resources, multiple terminal devices will also select resources in the resource pool used to send sidelink data. Then, there may be terminal device 1 that selects resource 1 from the first resource pool to send CSI, and some terminal device 2 also selects resource 1 from the resource pool for sending side link data for sending side link data. Road data, so conflicts arise. In the case of resource conflicts, it may cause CSI transmission failure or poor quality; or, cause side link data transmission failure or poor quality; or, cause CSI transmission failure or poor quality, and cause side link The data transmission failed or the quality is poor. Therefore, in the embodiment of the present application, the problem of resource conflict can also be further resolved.

For example, the second terminal device, which is the receiving end of the CSI, can determine whether there is a resource conflict phenomenon. For example, if the first resource pool includes time-frequency resources, the second terminal device may perform blind detection on the time-frequency resources included in the first resource pool, so as to receive the CSI from the first terminal device through the corresponding resources, for example, through the fourth The resource receives the second CSI from the first terminal device; or, if the first resource pool only includes frequency domain resources, and the second terminal device is additionally configured with feedback time information, the second terminal device only needs to indicate the feedback time information The frequency domain resources included in the first resource pool are detected at the time, and the second CSI from the first terminal device can be received through the fourth resource. If the second terminal device fails to detect the second CSI, for example, it does not receive the second CSI, or the quality of the second CSI received by the second terminal device is poor, the second terminal device can determine that a resource conflict has occurred, and In other words, it can be determined that the fourth resource used by the first terminal device to send the second CSI conflicts with the resources used by other terminal devices to send side link data, or it can be determined that the first terminal device is used to send the second CSI. The fourth resource of the second CSI is the same resource used by other terminal devices to send side link data. In the embodiment of the present application, the second CSI may include CQI and RI, and may also include PMI in future technologies, and of course, may also include some other information, which is not specifically limited.

In the case that the second terminal device determines that a resource conflict occurs, the second terminal device may determine the second resource pool used to replace the first resource pool, or the second terminal device may also determine the second resource pool used to replace the fourth resource. Two resources. Regarding how to determine the second resource pool used to replace the first resource pool, or determine the second resource used to replace the fourth resource, the second terminal device may have different ways.

1. The first way to determine the second terminal device.

The second terminal device may send a first message to the network device, and the first message may be used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices. Alternatively, the first message may also be just a trigger message. For example, the first message only occupies 1 bit. If the second terminal device sends the first message to the network device, the first message is used to trigger the network device to reconfigure the first resource pool. Or the first message is used to trigger the network device to reselect resources for sending CSI. If the first message is a trigger message, whether the first message is used to trigger the network device to reconfigure the first resource pool or to trigger the network device to reselect the resource for sending CSI can be specified by the protocol, or the first terminal When the device and the second terminal device establish a connection, they will perform a handshake process through high-level signaling (such as radio resource control (RRC) signaling), and the content triggered by the first message can also pass through the first terminal device and The process such as the handshake between the second terminal device is determined.

After the network device receives the first message, if the first message indicates that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, the network device can reconfigure the first resource pool. The first resource pool may be referred to as the second resource pool. The second resource pool can be implemented in multiple ways. For example, the resources included in the second resource pool configured by the network device can be completely different from the resources included in the first resource pool, that is, the first resource pool and the second resource The pools may have no intersection; or the network device may add some resources to the first resource pool to obtain the second resource pool, and so on. By reconfiguring the first resource pool, the first terminal device can continue to select resources from the second resource pool when sending CSI, which is more autonomous for the first terminal device. In addition, the network device can intervene in the sending process of the CSI of the terminal device, and can reconfigure the first resource pool according to the network congestion status, thereby achieving the effect of optimizing resource configuration.

Alternatively, after the network device receives the first message, if the first message indicates that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, the network device may also reselect the resource and reselect it The resource can be referred to as a second resource. Equivalently, the network device can directly select the second resource for the first terminal device, and the first terminal device can directly send the second CSI to the second terminal device through the second resource, and the first terminal device does not need to select the resource by itself. For the first terminal device, the implementation is relatively simple.

If the first message indicates that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, does the network device reconfigure the first resource pool or directly reselect resources for the first terminal device , Can be stipulated by agreement, or network equipment can notify terminal equipment in advance.

Alternatively, after the network device receives the first message, if the first message triggers the network device to reconfigure the first resource pool, the network device may reconfigure the first resource pool according to the trigger of the first message, and the configured first resource pool It can be called the second resource pool. Similarly, there can be multiple configuration processes for network devices, and you can refer to the previous introduction.

Or, after the network device receives the first message, if the first message triggers the network device to reselect the resource for sending CSI, the network device may reselect the resource based on the trigger of the first message, and the reselected resource may be called the first message. Two resources.

In the latter two methods, the network device can perform corresponding operations based on the trigger of the first message. Since the structure of the first message is relatively simple (for example, it may only occupy 1 bit), the network device does not need to perform the first message. Too much analysis and other processing is relatively simple for network equipment.

If the network device reconfigures the first resource pool, that is to say, obtains the second resource pool, the network device can send the information of the second resource pool to the first terminal device and the second terminal device, so that the first terminal Both the device and the second terminal device can receive information from the second resource pool of the network device, the first terminal device and the second terminal device also determine the second resource pool, and the first terminal device and the second terminal device are not required Too much interaction between. In this way, the second terminal device also determines the second resource pool. Alternatively, the network device may only send the information of the second resource pool to the second terminal device, so that the second terminal device can determine the second resource pool after receiving the information of the second resource pool from the network device, and then the second terminal device The second terminal device sends the information of the second resource pool to the first terminal device. The second terminal device can determine the second resource pool after receiving the information of the second resource pool from the second terminal device, thereby reducing the number of terminal devices and network Interaction between devices.

Similarly, if the network device selects the second resource, the network device can also send information about the second resource to the first terminal device and the second terminal device, so that both the first terminal device and the second terminal device can receive information from Information about the second resource of the network device, so that the first terminal device and the second terminal device determine the second resource; or, the network device may only send the information about the second resource to the second terminal device, and the second terminal device is in After receiving the second resource information from the network device, the second resource can be determined, and the second terminal device sends the second resource information to the first terminal device. The first terminal device is receiving the second resource from the second terminal device. After the information of the second resource, the second resource can be determined.

In the first determining method of the second terminal device, the second terminal device determines the second resource pool or the second resource through the network device. In this way, the second terminal device only needs to receive information from the network device. The result (the second resource pool or the second resource) is sufficient, and there is no need to perform excessive configuration and other operations, and the implementation is relatively simple. This method is more suitable for scenarios where the second terminal device is under the coverage of the network device. If the second terminal device is not under the coverage of the network device, the second terminal device may not be able to communicate with the network device and thus cannot pass through the network. The device determines the second resource pool or the second resource. Moreover, in this scenario where the second terminal device is under the coverage of the network device, the network device has the ability to communicate with the second terminal device, so the network device can use this ability to perform a certain degree of resource pooling for sending CSI. Control, for example, when the channel condition of the first resource pool is not good, or the first resource pool is occupied by other higher priority data transmission, the network device can reconfigure the resource pool or reselect resources for CSI transmission to reduce conflicts , Improve the reliability of CSI feedback.

At the same time, this method can also be applied to scenarios where the second terminal device and the first terminal device are under the coverage of different network devices. In this scenario, the second terminal device and the first terminal device can use a resource pool known to both parties. Transmit CSI. Of course, if this method is used in a scenario where the second terminal device and the first terminal device are under the coverage of different network devices, then the network device can send the second resource pool information or the second resource information to the second For the terminal device, the second terminal device sends the received information about the second resource pool or the second resource information to the first terminal device. And at this time, the network device mentioned refers to a network device covering the second terminal device.

As for whether the network device sends the second resource pool or the second resource to the second terminal device or to the second terminal device and the first terminal device, it may be related to whether the first terminal device is under the coverage of the network device. For example, if the first terminal device is also under the coverage of the network device, the network device can send the second resource pool or the second resource to the first terminal device and the second terminal device without forwarding between the two terminal devices; Or, if the first terminal device is not under the coverage of the network device, the network device may only send the second resource pool or the second resource to the second terminal device, and then the second terminal device sends it to the first terminal device. Of course, even if the first terminal device is also under the coverage of the network device, the network device can only send the second resource pool or the second resource to the second terminal device, and then the second terminal device sends it to the first terminal device. Specifically, There are no restrictions.

2. The second determination method of the second terminal device.

The second terminal device does not need to rely on network equipment, but can be configured by itself. For example, the second terminal device may reconfigure the first resource pool, and the configured first resource pool may be referred to as the second resource pool. The second resource pool can be implemented in multiple ways. For example, the resources included in the second resource pool configured by the second terminal device can be completely different from the resources included in the first resource pool, that is, the first resource pool and the second resource pool The two resource pools may have no intersection; or the second terminal device may add some resources to the first resource pool to obtain the second resource pool, and so on. By reconfiguring the first resource pool, the first terminal device can continue to select resources from the second resource pool when sending CSI, which is more autonomous for the first terminal device. In addition, the network device may not interfere with the CSI sending process of the terminal device, which can also improve the autonomy of the terminal device.

Alternatively, the second terminal device does not need to reconfigure the first resource pool, but reselects the resource, and the reselected resource may be called the second resource. Equivalently, the second terminal device can directly select the second resource for the first terminal device, and the first terminal device can directly send the second CSI to the second terminal device through the second resource, without the first terminal device selecting the resource by itself , The implementation is relatively simple for the first terminal device.

Whether the second terminal device reconfigures the first resource pool or directly reselects resources for the first terminal device can be stipulated by a protocol, or the network device can notify the terminal device in advance.

If the second terminal device obtains the second resource pool, the second terminal device can send the information of the second resource pool to the first terminal device, and the first terminal device can receive the second resource pool from the second terminal device Information, so that the first terminal device can determine the second resource pool to be able to select resources in the second resource pool to send the second CSI; or, if the second terminal device obtains the second resource, the second terminal device can When the information of the second resource is sent to the first terminal device, the first terminal device can receive the information of the second resource from the second terminal device, so that the first terminal device can determine the second resource to send the second resource through the second resource. CSI.

In the second determining method of the second terminal device, the second terminal device determines the second resource pool or the second resource by itself without the intervention of the network device. This method is more autonomous for the second terminal device. It has a stronger control effect on the communication process of the side link. This method is more suitable for scenarios where the second terminal device is not under the coverage of the network device. If the second terminal device is not under the coverage of the network device, the second terminal device may not be able to communicate with the network device and thus cannot pass through The network device determines the second resource pool or the second resource, so the second terminal device can determine the second resource pool or the second resource by itself. Of course, even if the second terminal device is under the coverage of the network device, the second determination method may be used to determine the second resource pool or the second resource.

No matter which of the above determination methods is used by the second terminal device, both the first terminal device and the second terminal device can obtain the information of the second resource pool, or both can obtain the information of the second resource. Then, if the first terminal device acquires the information of the second resource pool, the first terminal device can reselect resources in the second resource pool to send the second CSI, which is equivalent to that the previously sent second CSI generates resources In the case of conflict, the second terminal device may fail to receive or the reception quality is poor. Therefore, the first terminal device may reselect resources and then resend the second CSI. For example, the first terminal device selects the second resource from the second resource pool to send the second CSI through the second resource. The second terminal device also obtains information about the second resource pool. The second terminal device can perform detection on the resources indicated by the second resource pool, and receive the information from the second terminal device through the second resource included in the second resource pool. The second CSI.

Alternatively, if the first terminal device acquires the information of the second resource, the first terminal device may directly re-send the second CSI to the second terminal device through the second resource. The second terminal device also acquires the information of the second resource, and the second terminal device may receive the second CSI from the first terminal device through the second resource.

In the embodiment of the present application, a first resource pool is configured for the terminal device. When the first terminal device needs to send CSI, it can select a resource to send from the first resource pool, which provides a new mechanism for sending CSI. And the first resource pool may be a resource pool for sending side link data. For example, the resource pool configured for terminal equipment for sending side link data may be directly used as a resource pool for CSI, without additional configuration resources. It is relatively simple to send CSI from the pool. Alternatively, the first resource pool may be a resource pool used to send CSI, which is equivalent to a new resource pool specially configured for CSI, so that the resource pool is dedicated to sending CSI, which can minimize resource selection conflicts between CSI and data. Moreover, when there is a resource conflict, the first resource pool can be reconfigured to optimize the configuration of the resource pool, or it can be just reselected for the first terminal device without reconfiguring the first resource pool, and the implementation is relatively simple .

The device used to implement the foregoing method in the embodiments of the present application will be described below with reference to the accompanying drawings. Therefore, the above content can all be used in the subsequent embodiments, and the repeated content will not be repeated.

FIG. 4 is a schematic block diagram of a communication device 400 according to an embodiment of the application. Illustratively, the communication device 400 is, for example, the first terminal device 400. The first terminal device 400 includes a processing module 410 and a transceiver module 420. Wherein, the processing module 410 may be used to perform all operations other than the transceiving operation performed by the first terminal device in the embodiment shown in FIG. 3, such as S31, and/or other operations used to support the technology described herein. process. The transceiving module 420 may be used to perform all the transceiving operations performed by the first terminal device in the embodiment shown in FIG. 3, such as S33, and/or other processes used to support the technology described herein.

The processing module 410 is configured to select a first resource from a first resource pool, the resources included in the first resource pool are used to send CSI, or the resources included in the first resource pool are used to send side link data, so The first resource is used to send CSI;

The transceiver module 420 is configured to send the first CSI to the second terminal device through the first resource.

As an optional implementation manner, the resources included in the first resource pool are used to send side link data;

The processing module 410 is further configured to select a third resource from the first resource pool;

The transceiver module 420 is configured to send the first CSI to the second terminal device through the first resource as follows:

Sending the first CSI to the second terminal device by using the first resource in the third resource;

Sending the first side link data to the third terminal device through resources other than the first resource in the third resource.

As an optional implementation manner, the resources included in the first resource pool are frequency domain resources;

The transceiver module 420 is further configured to receive first configuration information from the second terminal device, where the first configuration information is used to configure feedback time information, and the feedback time information is used by the first terminal device 400 in the feedback Sending the first CSI at the time indicated by the time information;

The transceiver module 420 is configured to send the first CSI to the second terminal device through the first resource in the following manner: at the time indicated by the feedback time information, send the CSI to the second terminal device through the first resource. The first CSI.

As an optional implementation manner, the transceiver module 420 is further configured to receive information from the second resource pool of the second terminal device or network device, so as to use the second resource pool indicated by the second resource pool information. The resource pool replaces the first resource pool.

As an optional implementation manner, the processing module 410 is further configured to select a second resource from the second resource pool, the resources included in the second resource pool are used to send CSI, or the second resource pool includes The resource of is used to send side link data, and the second resource is used to send CSI;

The transceiver module 420 is further configured to send a second CSI to the second terminal device through the second resource.

As an optional implementation manner, the transceiver module 420 is further configured to receive information about a second resource from the second terminal device or network device, so as to replace the first resource with the second resource indicated by the second resource. The terminal device 400 selects a fourth resource from the first resource pool for sending the second CSI.

As an optional implementation manner, the transceiver module 420 is further configured to send the second CSI to the second terminal device through the second resource.

It should be understood that the processing module 410 in the embodiment of the present application may be implemented by a processor or processor-related circuit components, and the transceiver module 420 may be implemented by a transceiver or transceiver-related circuit components.

As shown in FIG. 5, an embodiment of the present application also provides a communication device 500. Illustratively, the communication device 500 is, for example, the first terminal device 500. The first terminal device 500 includes a processor 510, a memory 520, and a transceiver 530. The memory 520 stores instructions or programs, and the processor 510 is configured to execute the instructions or programs stored in the memory 520. When the instructions or programs stored in the memory 520 are executed, the processor 510 is configured to execute the operations performed by the processing module 410 in the foregoing embodiment, and the transceiver 530 is configured to execute the operations performed by the transceiver module 420 in the foregoing embodiment.

It should be understood that the terminal device 400 or the terminal device 500 according to the embodiment of the present application may correspond to the first terminal device in the embodiment shown in FIG. 3, and the functions of each module in the first terminal device 400 or the first terminal device 500 The operations and/or functions are used to implement the corresponding processes in the embodiment shown in FIG. 3, and are not repeated here for brevity.

FIG. 6 is a schematic block diagram of a communication device 600 according to an embodiment of the application. Exemplarily, the communication device 600 is the second terminal device 600, for example. The second terminal device 600 includes a processing module 610 and a transceiver module 620. Wherein, the processing module 610 may be used to perform all operations other than the transceiving operation performed by the second terminal device in the embodiment shown in FIG. 3, such as S32, and/or other operations used to support the technology described herein. process. The transceiver module 620 may be used to perform all the transceiver operations performed by the second terminal device in the embodiment shown in FIG. 3, such as S33, and/or other processes used to support the technology described herein.

The processing module 610 is configured to determine a first resource pool, where the resources included in the first resource pool are used to send CSI, or the resources included in the first resource pool are used to send side link data;

The transceiver module 620 is configured to perform detection on the resource indicated by the first resource pool, and receive the first CSI from the first terminal device through the first resource included in the first resource pool, and the first resource is used To send CSI.

As an optional implementation manner, the transceiver module 620 is configured to receive the first CSI from the first terminal device through the first resource included in the first resource pool in the following manner:

Receiving the first CSI from the first terminal device by using the first resource in the third resources included in the first resource pool.

The transceiver module 620 is further configured to send first configuration information to the first terminal device, where the first configuration information is used to configure feedback time information, and the feedback time information is used by the first terminal device in the feedback CSI is sent at the time indicated by the time information;

The transceiver module 620 is further configured to monitor the resources indicated by the first resource pool in the following manner, and receive the first CSI from the first terminal device through the first resources included in the first resource pool:

At the time indicated by the feedback time information, monitor on the resource indicated by the first resource pool, and receive the first CSI from the first terminal device through the first resource.

As an optional implementation manner, the processing module 610 is further configured to:

Determining that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices;

Determine a second resource pool used to replace the first resource pool, or determine a second resource used to replace the fourth resource selected by the first terminal device.

As an optional implementation manner, the processing module 610 is configured to determine a second resource pool to replace the first resource pool in the following manner:

A first message is sent to the network device through the transceiver module 620, where the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, or, The first message is used to trigger the network device to reconfigure the first resource pool; to receive the information of the second resource pool from the network device through the transceiver module 620; or to reconfigure the first resource pool , To obtain the second resource pool.

As an optional implementation manner, the transceiver module 620 is further configured to send the information of the second resource pool to the first terminal device.

As an optional implementation manner, the transceiver module 620 is further configured to perform detection on the resources indicated by the second resource pool, and receive data from the second terminal through the second resource included in the second resource pool. The second CSI of the device.

As an optional implementation manner, the processing module 610 is configured to determine the second resource for replacing the fourth resource selected by the first terminal device in the following manner:

A first message is sent to the network device through the transceiver module 620, where the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, or, The first message is used to trigger the network device to reselect the resource for sending CSI; receive the information of the second resource from the network device through the transceiver module 620; or reselect the resource to obtain the second resource .

As an optional implementation manner, the transceiver module 620 is further configured to send the information of the second resource to the first terminal device.

As an optional implementation manner, the transceiver module 620 is further configured to receive the second CSI from the second terminal device through the second resource.

It should be understood that the processing module 610 in the embodiment of the present application may be implemented by a processor or a processor-related circuit component, and the transceiver module 620 may be implemented by a transceiver or a transceiver-related circuit component.

As shown in FIG. 7, an embodiment of the present application also provides a communication device 700. Exemplarily, the communication device 700 is the second terminal device 700, for example. The second terminal device 700 includes a processor 710, a memory 720, and a transceiver 730. The memory 720 stores instructions or programs, and the processor 710 is configured to execute instructions or programs stored in the memory 720. When the instructions or programs stored in the memory 720 are executed, the processor 710 is configured to execute the operations performed by the processing module 610 in the foregoing embodiment, and the transceiver 730 is configured to execute the operations performed by the transceiver module 620 in the foregoing embodiment.

It should be understood that the second terminal device 600 or the second terminal device 700 according to the embodiment of the present application may correspond to the terminal device in the embodiment shown in FIG. 3, and each of the second terminal device 600 or the second terminal device 700 The operations and/or functions of the modules are used to implement the corresponding processes in the embodiment shown in FIG. 3, and are not repeated here for brevity.

FIG. 8 is a schematic block diagram of a communication device 800 according to an embodiment of the application. Exemplarily, the communication device 800 is a network device 800, for example. The network device 800 includes a processing module 810 and a transceiver module 820. Wherein, the processing module 810 may be used to perform all operations performed by the network device in the embodiment shown in FIG. 3 except for the transceiving operation, for example, the operation of reconfiguring the first resource pool to obtain the second resource pool, And/or other processes used to support the technology described herein. The transceiving module 820 can be used to perform all the transceiving operations performed by the network device in the embodiment shown in FIG. 3, for example, the operation of sending the information of the second resource pool to the first terminal device, and sending the information of the second resource pool For the operation of the second terminal device, and/or other processes used to support the technology described herein, it can be replaced by a sending unit or a transmitter when the transceiver module 820 performs the sending step, and when the transceiver module 820 performs the receiving step It can be replaced by a receiving unit or a receiver.

The transceiver module 820 is configured to receive a first message from the second terminal device, the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, or, The first message is used to trigger the network device to reconfigure the first resource pool, the resources included in the first resource pool are used to send CSI, or the resources included in the first resource pool are used to send sidelinks data;

The processing module 810 is configured to reconfigure the first resource pool to obtain a second resource pool.

As an optional implementation manner, the transceiver module 820 is also used for:

Sending the information of the second resource pool to the second terminal device; or sending the information of the second resource pool to the second terminal device and the first terminal device.

It should be understood that the processing module 810 in the embodiment of the present application may be implemented by a processor or processor-related circuit components, and the transceiver module 820 may be implemented by a transceiver or transceiver-related circuit components.

As shown in FIG. 9, an embodiment of the present application also provides a communication device 900. Illustratively, the communication device 900 is a network device 900, for example. The network device 900 includes a processor 910, a memory 920, and a transceiver 930. The memory 920 stores instructions or programs, and the processor 910 is configured to execute instructions or programs stored in the memory 920. When the instructions or programs stored in the memory 920 are executed, the processor 910 is used to perform the operations performed by the processing module 810 in the foregoing embodiment, and the transceiver 930 is used to perform the operations performed by the transceiver module 820 in the foregoing embodiment. It can be replaced by a transmitter when 930 performs the sending step, and it can be replaced by a receiver when the transceiver 930 performs the receiving step.

It should be understood that the network device 800 or the network device 900 according to the embodiment of the present application may correspond to the network device in the embodiment shown in FIG. 3, and the operations and/or functions of each module in the network device 800 or the network device 900 are respectively In order to implement the corresponding process in the embodiment shown in FIG. 3, for the sake of brevity, details are not described herein again.

FIG. 10 is a schematic block diagram of a communication device 1000 according to an embodiment of the application. Illustratively, the communication device 1000 is, for example, a network device 1000. The network device 1000 includes a processing module 1010 and a transceiver module 1020. The processing module 1010 may be used to perform all operations performed by the network device in the embodiment shown in FIG. 3 except for the transceiving operation, such as the operation of reselecting the resource used to send CSI to obtain the second resource, and / Or other processes used to support the technology described herein. The transceiver module 1020 can be used to perform all the transceiver operations performed by the network device in the embodiment shown in FIG. 3, for example, the operation of sending information about the second resource to the first terminal device, and sending the information about the second resource to the first terminal device. 2. The operation of the terminal device, and/or other processes used to support the technology described herein, when the transceiver module 1020 executes the sending step, it can be replaced by a sending module or a transmitter, and when the transceiver module 1020 executes the receiving step, it can be replaced by Receive module or receiver instead.

The transceiver module 1020 is configured to receive a first message from a second terminal device, where the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, or, The first message is used to trigger the network device to re-select resources for sending CSI, the resources included in the first resource pool are used to send CSI, or the resources included in the first resource pool are used to send side lines Link data;

The processing module 1010 is configured to reselect a resource for sending CSI to obtain a second resource.

As an optional implementation manner, the transceiver module 1020 is also used to:

Sending the information of the second resource to the second terminal device; or sending the information of the second resource to the second terminal device and the first terminal device.

It should be understood that the processing module 1010 in the embodiment of the present application may be implemented by a processor or processor-related circuit components, and the transceiver module 1020 may be implemented by a transceiver or transceiver-related circuit components.

As shown in FIG. 11, an embodiment of the present application also provides a communication device 1100. Exemplarily, the communication device 1100 is a network device 1100, for example. The network device 1100 includes a processor 1110, a memory 1120, and a transceiver 1130. The memory 1120 stores instructions or programs, and the processor 1110 is configured to execute instructions or programs stored in the memory 1120. When the instructions or programs stored in the memory 1120 are executed, the processor 1110 is used to perform the operations performed by the processing module 1010 in the foregoing embodiment, and the transceiver 1130 is used to perform the operations performed by the transceiver module 1020 in the foregoing embodiment. It can be replaced by a transmitter when 1130 performs the sending step, and it can be replaced by a receiver when the transceiver 1130 performs the receiving step.

It should be understood that the network device 1000 or the network device 1100 according to the embodiment of the present application may correspond to the network device in the embodiment shown in FIG. 3, and the operations and/or functions of each module in the network device 1000 or the network device 1100 are respectively In order to implement the corresponding process in the embodiment shown in FIG. 3, for the sake of brevity, details are not described herein again.

The embodiment of the present application also provides a communication device, which may be a terminal device or a circuit. The communication device may be used to perform actions performed by the terminal device in the method embodiment shown in FIG. 3 above.

When the communication device is a terminal device, FIG. 12 shows a simplified structural diagram of the terminal device. It is easy to understand and easy to illustrate. In FIG. 12, the terminal device uses a mobile phone as an example. As shown in Figure 12, the terminal equipment includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device. The processor is mainly used to process the communication protocol and communication data, and to control the terminal device, execute the software program, and process the data of the software program. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data. For ease of description, only one memory and processor are shown in FIG. 12. In actual terminal equipment products, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or storage device. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.

In the embodiments of the present application, the antenna and radio frequency circuit with the transceiver function can be regarded as the transceiver unit of the terminal device, and the processor with the processing function can be regarded as the processing unit of the terminal device. As shown in FIG. 12, the terminal device includes a transceiver unit 1210 and a processing unit 1220. The transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver, and so on. The processing unit may also be called a processor, a processing board, a processing module, a processing device, and so on. Optionally, the device for implementing the receiving function in the transceiver unit 1210 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit 1210 as the sending unit, that is, the transceiver unit 1210 includes a receiving unit and a sending unit. The transceiver unit may sometimes be called a transceiver, a transceiver, or a transceiver circuit. The receiving unit may sometimes be called a receiver, receiver, or receiving circuit. The transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.

It should be understood that the transceiving unit 1210 is used to perform the sending and receiving operations on the first terminal device side in the method embodiment shown in FIG. 3, and the processing unit 1220 is used to perform the first terminal device in the method embodiment shown in FIG. Other operations on the device side except for sending and receiving operations.

For example, in an implementation manner, the transceiving unit 1210 is used to perform the transceiving steps on the first terminal device side in the embodiment shown in FIG. 3, such as S33, and/or other processes used to support the technology described herein . The processing unit 1220 is configured to perform other operations on the side of the first terminal device in the embodiment shown in FIG. 3 besides the transceiving operation, such as S31, and/or other processes for supporting the technology described herein.

Alternatively, the transceiving unit 1210 is configured to perform the sending and receiving operations on the second terminal device side in the method embodiment shown in FIG. 3, and the processing unit 1220 is configured to perform the second terminal device in the method embodiment shown in FIG. Other operations besides sending and receiving operations.

For example, in an implementation manner, the transceiving unit 1210 is used to perform the transceiving steps on the second terminal device side in the embodiment shown in FIG. 3, such as S33, and/or other processes used to support the technology described herein . The processing unit 1220 is configured to perform other operations on the terminal device side in the embodiment shown in FIG. 3 besides the transceiving operation, such as S32, and/or other processes for supporting the technology described herein.

When the communication device is a chip, the chip includes a transceiver unit and a processing unit. Among them, the transceiver unit may be an input/output circuit or a communication interface; the processing unit is a processor or microprocessor or integrated circuit integrated on the chip.

When the communication device in the embodiment of the present application is a terminal device, the device shown in FIG. 13 can be referred to. As an example, the device can perform functions similar to the processor 1310 in FIG. 13. In FIG. 13, the device includes a processor 1310, a data sending processor 1320, and a data receiving processor 1330. The processing module 410 in the foregoing embodiment may be the processor 1310 in FIG. 13 and complete corresponding functions; the transceiver module 420 in the foregoing embodiment may be the sending data processor 1320 in FIG. 13 and/or receiving data The processor 1330. Alternatively, the processing module 610 in the foregoing embodiment may be the processor 1310 in FIG. 13 and complete corresponding functions; the transceiving module 620 in the foregoing embodiment may be the sending data processor 1320 in FIG. 13 and/or Receive data processor 1330.

Although a channel encoder and a channel decoder are shown in FIG. 13, it can be understood that these modules do not constitute a restrictive description of this embodiment, and are only illustrative.

Fig. 14 shows another form of this embodiment. The processing device 1400 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem. The communication device in this embodiment can be used as a modulation subsystem therein. Specifically, the modulation subsystem may include a processor 1403 and an interface 1404. Among them, the processor 1403 completes the function of the aforementioned processing module 410, and the interface 1404 completes the function of the aforementioned transceiver module 420. Alternatively, the processor 1403 completes the function of the aforementioned processing module 610, and the interface 1404 completes the function of the aforementioned transceiver module 620. As another variation, the modulation subsystem includes a memory 1406, a processor 1403, and a program stored in the memory 1406 and running on the processor. The processor 1403 implements the method shown in FIG. 3 when executing the program. In the example, the method on the side of the first terminal device or the side of the second terminal device. It should be noted that the memory 1406 can be non-volatile or volatile, and its location can be located inside the modulation subsystem or in the processing device 1400, as long as the memory 1406 can be connected to the The processor 1403 is sufficient.

The embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, it can realize that the embodiment shown in FIG. 3 provided by the above method embodiment is related to the first terminal device. The process.

The embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, it can realize that the embodiment shown in FIG. 3 provided by the foregoing method embodiment is related to the second terminal device. The process.

The embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, it can implement the process related to the network device in the embodiment shown in FIG. 3 provided by the foregoing method embodiment. .

The embodiment of the present application also provides a computer program product containing instructions, which when executed, execute the method on the first terminal device side in the method embodiment shown in FIG. 3.

The embodiment of the present application also provides a computer program product containing instructions, which when executed, execute the method on the second terminal device side in the method embodiment shown in FIG. 3.

The embodiment of the present application also provides a computer program product containing instructions that, when executed, execute the method on the network device side in the method embodiment shown in FIG. 3.

It should be understood that the processor mentioned in the embodiments of this application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), or application specific integrated circuits ( application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.

It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (synchlink DRAM, SLDRAM) ) And direct memory bus random access memory (direct rambus RAM, DR RAM).

It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, the memory (storage module) is integrated in the processor.

It should be noted that the memories described herein are intended to include, but are not limited to, these and any other suitable types of memories.

It should be understood that, in the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, rather than corresponding to the embodiments of the present application. The implementation process constitutes any limitation.

A person of ordinary skill in the art may be aware that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the above-described system, device, and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program code .

The above are only specific implementations of the application, but the scope of protection of the embodiments of the application is not limited thereto. Any person skilled in the art can easily think of changes within the technical scope disclosed in the embodiments of the application. Or replacement should be covered within the scope of protection of this application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims.

Claims

A method for transmitting channel state information CSI, characterized in that it comprises:

The first terminal device selects a first resource from a first resource pool. The resources included in the first resource pool are used to send CSI, or the resources included in the first resource pool are used to send side link data. One resource is used to send CSI;

The first terminal device sends the first CSI to the second terminal device through the first resource.
The method according to claim 1, wherein the resources included in the first resource pool are used for sending side uplink data,

The method also includes:

Selecting, by the first terminal device, a third resource from the first resource pool;

The sending, by the first terminal device, the first CSI to the second terminal device through the first resource, includes:

Sending, by the first terminal device, the first CSI to the second terminal device through the first resource among the third resources;

The first terminal device sends the first side uplink data to the third terminal device through resources other than the first resource in the third resource.
The method according to claim 1, wherein the resources included in the first resource pool are frequency domain resources,

The method also includes:

The first terminal device receives first configuration information from the second terminal device, where the first configuration information is used to configure feedback time information, and the feedback time information is used by the first terminal device in the feedback Sending the first CSI at the time indicated by the time information;

The sending, by the first terminal device, the first CSI to the second terminal device through the first resource, includes:

The first terminal device sends the first CSI to the second terminal device through the first resource at the time indicated by the feedback time information.
A method for receiving CSI, characterized by comprising:

The second terminal device determines a first resource pool, and the resources included in the first resource pool are used to send CSI, or the resources included in the first resource pool are used to send side link data;

The second terminal device performs detection on the resource indicated by the first resource pool, and receives the first CSI from the first terminal device through the first resource included in the first resource pool, and the first resource uses To send CSI.
The method according to claim 4, wherein the second terminal device receiving the first CSI from the first terminal device through the first resource included in the first resource pool comprises:

The second terminal device receives the first CSI from the first terminal device through the first resource in the third resources included in the first resource pool.
The method according to claim 4, wherein the resources included in the first resource pool are frequency domain resources,

The method also includes:

The second terminal device sends first configuration information to the first terminal device, where the first configuration information is used to configure feedback time information, and the feedback time information is used for the first terminal device at the feedback time CSI is sent at the time indicated by the information;

The second terminal device monitoring on the resource indicated by the first resource pool and receiving the first CSI from the first terminal device through the first resource included in the first resource pool includes:

The second terminal device listens on the resource indicated by the first resource pool at the time indicated by the feedback time information, and receives the first terminal device from the first terminal device through the first resource One CSI.
The method according to any one of claims 4 to 6, wherein the method further comprises:

Determining, by the second terminal device, that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices;

The second terminal device determines the second resource pool used to replace the first resource pool, or determines the second resource used to replace the fourth resource selected by the first terminal device.
The method according to claim 7, wherein the second terminal device determining a second resource pool to replace the first resource pool comprises:

The second terminal device sends a first message to the network device, where the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, or The first message is used to trigger the network device to reconfigure the first resource pool; the second terminal device receives information about the second resource pool from the network device; or,

The second terminal device reconfigures the first resource pool to obtain the second resource pool.
The method according to claim 7 or 8, wherein the method further comprises:

The second terminal device sends the information of the second resource pool to the first terminal device.
The method according to any one of claims 7-9, wherein the method further comprises:

The second terminal device performs detection on the resource indicated by the second resource pool, and receives the second CSI from the second terminal device through the second resource included in the second resource pool.
The method according to claim 7, wherein the first terminal device determining the second resource used to replace the fourth resource selected by the first terminal device comprises:

The second terminal device sends a first message to the network device, where the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, or The first message is used to trigger the network device to reselect a resource for sending CSI; the second terminal device receives information about the second resource from the network device; or,

The second terminal device reselects the resource to obtain the second resource.
A method for configuring resources, characterized in that it includes:

The network device receives the first message from the second terminal device, where the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, or, the first The message is used to trigger the network device to reconfigure the first resource pool, the resources included in the first resource pool are used to send CSI, or the resources included in the first resource pool are used to send side link data;

The network device reconfigures the first resource pool to obtain a second resource pool.
The method of claim 12, wherein the method further comprises:

The network device sends the information of the second resource pool to the second terminal device; or,

The network device sends the information of the second resource pool to the second terminal device and the first terminal device.
A method for configuring resources, characterized in that it includes:

The network device receives the first message from the second terminal device, where the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, or, the first The message is used to trigger the network device to re-select resources for sending CSI, the resources included in the first resource pool are used to send CSI, or the resources included in the first resource pool are used to send side link data;

The network device reselects the resource for sending CSI to obtain the second resource.
The method of claim 14, wherein the method further comprises:

The network device sends the information of the second resource to the second terminal device; or,

The network device sends the information of the second resource to the second terminal device and the first terminal device.
A communication device, characterized by comprising:

A processor, configured to select a first resource from a first resource pool, the resources included in the first resource pool are used to send CSI, or the resources included in the first resource pool are used to send side link data, the The first resource is used to send CSI;

The transceiver is configured to send the first CSI to the second terminal device through the first resource.
The communication device according to claim 16, wherein the resources included in the first resource pool are used to send side link data,

The processor is further configured to select a third resource from the first resource pool;

The transceiver is configured to send the first CSI to the second terminal device through the first resource in the following manner:

Sending the first CSI to the second terminal device by using the first resource in the third resource;

Sending the first side link data to the third terminal device through resources other than the first resource in the third resource.
The communication device according to claim 16, wherein the resources included in the first resource pool are frequency domain resources,

The transceiver is further configured to receive first configuration information from the second terminal device, where the first configuration information is used to configure feedback time information, and the feedback time information is used by the communication device in the feedback Sending the first CSI at the time indicated by the time information;

The transceiver is configured to send the first CSI to the second terminal device through the first resource in the following manner: at the time indicated by the feedback time information, to the second terminal device through the first resource Send the first CSI.
A communication device, characterized by comprising:

A processor, configured to determine a first resource pool, where resources included in the first resource pool are used to send CSI, or resources included in the first resource pool are used to send side link data;

The transceiver is configured to perform detection on the resource indicated by the first resource pool, and receive the first CSI from the first terminal device through the first resource included in the first resource pool, where the first resource is used for Send CSI.
The communication device according to claim 19, wherein the transceiver is configured to receive the first CSI from the first terminal device through the first resource included in the first resource pool in the following manner:

Receiving the first CSI from the first terminal device by using the first resource in the third resources included in the first resource pool.
The communication device according to claim 19, wherein the resources included in the first resource pool are frequency domain resources,

The transceiver is further configured to send first configuration information to the first terminal device, where the first configuration information is used to configure feedback time information, and the feedback time information is used for the first terminal device in the Send CSI at the time indicated by the feedback time information;

The transceiver is configured to monitor on the resource indicated by the first resource pool in the following manner, and receive the first CSI from the first terminal device through the first resource included in the first resource pool:

At the time indicated by the feedback time information, monitor on the resource indicated by the first resource pool, and receive the first CSI from the first terminal device through the first resource.
The communication device according to any one of claims 19-21, wherein the processor is further configured to:

Determining that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices;

Determine a second resource pool used to replace the first resource pool, or determine a second resource used to replace the fourth resource selected by the first terminal device.
The communication device according to claim 22, wherein the processor is configured to determine a second resource pool to replace the first resource pool in the following manner:

Send a first message to the network device through the transceiver, where the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, or, The first message is used to trigger the network device to reconfigure the first resource pool; receive information about the second resource pool from the network device through the transceiver; or,

The first resource pool is reconfigured to obtain the second resource pool.
The communication device according to claim 22 or 23, wherein the transceiver is further configured to send information of the second resource pool to the first terminal device.
The communication device according to any one of claims 22 to 24, wherein the transceiver is further configured to perform detection on resources indicated by the second resource pool, and the second resource pool includes The second resource of receives the second CSI from the first terminal device.
The communication device according to claim 22, wherein the processor is configured to determine a second resource for replacing the fourth resource selected by the first terminal device in the following manner:

Send a first message to the network device through the transceiver, where the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, or, The first message is used to trigger the network device to reselect the resource for sending CSI; receive the information of the second resource from the network device through the transceiver; or,

Reselect the resource to obtain the second resource.
A communication device, characterized by comprising:

The transceiver is configured to receive a first message from a second terminal device, the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, or, The first message is used to trigger the network device to reconfigure the first resource pool, the resources included in the first resource pool are used to send CSI, or the resources included in the first resource pool are used to send side link data ；

The processor is configured to reconfigure the first resource pool to obtain a second resource pool.
The communication device according to claim 27, wherein the transceiver is further used for:

Sending the information of the second resource pool to the second terminal device; or,

Sending the information of the second resource pool to the second terminal device and the first terminal device.
A communication device, characterized by comprising:

The transceiver is configured to receive a first message from a second terminal device, the first message is used to indicate that the resource selected by the first terminal device in the first resource pool conflicts with the resource selected by other terminal devices, or, The first message is used to trigger the network device to re-select resources for sending CSI, the resources included in the first resource pool are used to send CSI, or the resources included in the first resource pool are used to send sideline links Road data

The processor is configured to reselect a resource for sending CSI to obtain the second resource.
The communication device according to claim 29, wherein the transceiver is further used for:

Sending the information of the second resource to the second terminal device; or,

Sending the information of the second resource to the second terminal device and the first terminal device.