WO2023207784A1

WO2023207784A1 - Resource indication method and communication apparatus

Info

Publication number: WO2023207784A1
Application number: PCT/CN2023/089776
Authority: WO
Inventors: 杨帆; 黎超; 黄海宁; 李君瑶; 张天虹
Original assignee: 华为技术有限公司
Priority date: 2022-04-29
Filing date: 2023-04-21
Publication date: 2023-11-02
Also published as: CN117041987A

Abstract

Provided in the present application are a resource indication method and a communication apparatus, which can improve communication efficiency and can be applied to a communication system. The resource indication method comprises: determining resource indication information; and sending the resource indication information, wherein the resource indication information is used for indicating a channel occupancy duration of a channel shared by a plurality of terminal devices, and information of a terminal device, which is allowed to initialize a channel occupancy time of the shared channel.

Description

Resource indication method and communication device

This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on April 29, 2022, with application number 202210469114.5 and application name "Resource Instruction Method and Communication Device", the entire content of which is incorporated into this application by reference. .

Technical field

The present application relates to the field of communications, and in particular, to a resource indication method and a communications device.

Background technique

In the side link technology of the new air interface, in order to meet the demand for greater data transmission rate, communication on the unlicensed spectrum can be supported. In some embodiments, when the terminal device transmits data on the unlicensed spectrum, it needs to perform Type 1 listen before talk (LBT) before each transmission of data, and listen before listening to the unlicensed spectrum. When the channel on the spectrum is idle, access the channel and send data.

However, in the above solution, in a scenario where there are multiple terminal devices in the sidelink, each terminal device needs to perform type 1 LBT before sending data. Since the terminal device needs to perform random backoff during the type 1 LBT process, This results in long device access times and low communication efficiency.

Contents of the invention

Embodiments of the present application provide a resource indication method and a communication device, which can reduce the waiting time during information transmission by a terminal device, thereby improving communication efficiency.

In order to achieve the above purpose, this application adopts the following technical solutions:

The first aspect is to provide a resource indication method. The resource indication method includes: determining resource indication information and sending the resource indication information. The resource indication information is used to indicate: the channel occupancy time of the channel shared by multiple terminal devices, and the information of the terminal device that allows the channel occupancy time of the initially shared channel.

Based on the resource indication method provided in the first aspect, one device can determine resource indication information and send the resource indication information to multiple terminal devices, where the resource indication information is used to indicate the channel occupancy duration of a channel shared by multiple terminal devices. Or information about the terminal device that allows the channel occupancy time of the initially shared channel. In this way, the terminal device that initializes the channel occupancy time of the shared channel can initialize the channel occupancy time according to the channel occupancy time of the shared channel, and share the channel occupancy time with terminal devices among multiple terminal devices, thereby reducing the number of different terminal devices. The time interval between devices sending their respective information to be transmitted to reduce channel access time and improve communication efficiency.

The resource indication method described in the first aspect can be implemented by a network device or a terminal device.

In addition, the resource indication information may be carried in higher layer signaling or control information. Control information is used to indicate downlink transmission or sidelink transmission. High-level signaling can be radio resource control signaling, media access control control unit signaling, direct communication PC5 radio resource control signaling or PC5 media access control control unit signaling. The control information can be downlink control information or sidelink Link control information.

It should be noted that in the resource indication method described in the first aspect, the resource indication information may be sent in a broadcast manner, a multicast manner, or a unicast manner.

For example, the resource indication information may be carried in the downlink control information, and the resource indication information may be sent in a multicast manner. In this case, optionally, the downlink control information can be scrambled by a wireless network temporary identifier, and the wireless network temporary identifier is related to the identification information of the group to which the terminal device that receives the resource indication information belongs. If the resource indication information can be carried in the downlink control information, and the resource indication information is sent in a unicast manner, in this case, optionally, the downlink control information can be scrambled by the wireless network temporary identifier, and the wireless network temporary identifier The identification is related to the pairing identification corresponding to the terminal device that receives the resource indication information.

In a possible design solution, sending resource indication information may include: sending resource indication information to multiple terminal devices. In this way, a terminal device among multiple terminal devices can determine whether it is the terminal device that occupies the initial channel time according to the resource indication information, thereby preventing the terminal device among the multiple terminal devices other than the terminal device that occupies the initial channel time from initiating the channel. Thereby improving communication reliability.

In this case, the resource indication information can be sent in a broadcast, multicast, or unicast manner. For example, in order to reduce the cost of sending resource indication information, the resource indication information may be sent in a broadcast or multicast manner.

In a possible design solution, sending resource indication information may include: sending resource indication information to a first terminal device among multiple terminal devices. In this way, the resource indication information can be carried through one signaling, thereby reducing signaling overhead.

In a possible design solution, the resource indication information can also be used to indicate: frequency domain resource information within the channel occupation duration. Or, time domain resource information and/or frequency domain resource information occupied by different types of terminal devices among multiple terminal devices within the channel occupation duration. In this way, the terminal device can send on the configured resources, which can reduce complexity and further improve communication efficiency.

It can be understood that the resource indication information can also be used to indicate the listen-before-send type of the terminal device. In this way, the terminal device can perform channel monitoring and/or channel access according to the listen-before-serve type indicated by the resource indication information.

In a possible design solution, the resource indication information can also be used to indicate: the transmission sequence of terminal devices used for sidelink transmission among multiple terminal devices within the channel occupation duration. Alternatively, within the channel occupation duration, the terminal device that receives the resource indication information sends the information to be transmitted and/or receives the time domain resource information of the information to be transmitted.

Optionally, the transmission order of the terminal devices among the multiple terminal devices within the channel occupation time may be related to one or more of the following: the priority of the information to be transmitted by the terminal device, the remaining packet delay budget of the information to be transmitted by the terminal device , or the number of transmission blocks of information to be transmitted by the terminal device. In this way, the transmission order of the terminal device can be determined based on the priority of the information to be transmitted by the terminal device, the remaining packet delay budget of the information to be transmitted by the terminal device, or the number of transmission blocks of the information to be transmitted by the terminal device. For example, high-priority information can be Or, information with a small remaining packet delay budget can be sent first, or information with a large number of transmission blocks can be sent first, so that the service quality of sidelink transmission can be better ensured.

The second aspect is to provide a resource indication method. The resource indication method includes: the first terminal device obtains resource indication information, and sends sharing indication information according to the resource indication information. Wherein, the first terminal device is one of multiple terminal devices, and the resource indication information is used to indicate: the channel occupancy time of the shared channel of the multiple terminal devices, and the terminal device that is allowed to initialize the channel occupancy time of the shared channel. Information. The sharing indication information is used to indicate that the first terminal device successfully initializes the channel occupancy time of the channel shared by multiple terminal devices.

Based on the resource indication method of the second aspect, the first terminal device can obtain the resource indication information and send the sharing indication information according to the resource indication information. The resource indication information includes the channel occupancy time of the channel shared by multiple terminal devices, and the information of the terminal device that is allowed to initialize the channel occupancy time of the shared channel. In this way, the first terminal device can share the channel occupancy time of the shared channel with multiple terminal devices. The channel occupancy time of the channel is the initial channel occupancy time, and the channel occupancy time is shared through sharing indication information, which can reduce the need for different terminal devices to send their own pending transmissions. time interval between messages to reduce channel access time and improve communication efficiency.

In a possible design solution, the first terminal device can determine the resource indication information by itself.

In a possible design solution, the first terminal device may receive resource indication information from the network device.

In a possible design solution, the first terminal device may receive resource indication information from the third terminal device.

In a possible design solution, the resource indication information can also be used to indicate: frequency domain resource information within the channel occupation duration. Or, among multiple terminal devices, the time domain resource information and/or frequency domain resource information occupied by different terminal devices respectively within the channel occupation duration. In this way, the terminal device can send on the configured resources, which can reduce complexity and further improve communication efficiency.

In a possible design solution, the resource indication information can also be used to indicate: the transmission sequence of terminal devices used for sidelink transmission among multiple terminal devices. Alternatively, within the channel occupation duration, the terminal device that receives the resource indication information sends the information to be transmitted and/or receives the time domain resource information of the information to be transmitted.

In a possible design solution, the sharing indication information is at least used to indicate a channel occupancy duration of a channel shared by the plurality of terminal devices.

Optionally, the resource indication information may also be used to indicate: the transmission sequence of terminal devices used for sidelink transmission among multiple terminal devices within the channel occupation duration.

It should be noted that in this embodiment of the present application, the sharing indication information may be carried in one or more of the following: first-level side-link control information, second-level side-link control information, media access control-control unit, or side-link control information. Shared channel.

Optionally, a terminal device other than the first terminal device among the plurality of terminal devices is a second terminal device. In the second terminal device, the identification information and/or resource allocation information of the X terminal devices in the first transmission order may be carried in the first-level sideline control information, where X is a positive integer greater than or equal to 1. In this way, the identification information and/or resource allocation information of the processing time of the previous X terminal devices, thus improving reliability.

It can be understood that in the second terminal device, the identification information and/or resource allocation information is located in other terminal devices other than the terminal device of the first side row control information. The identification information and/or resource allocation information are carried with the second level side. Line control information or media access control control unit.

Or, optionally, when the first terminal device sends sharing indication information according to the resource indication information, the first terminal device may continuously send multiple physical sidelink shared channels, and the multiple physical sidelink shared channels carry different information. For example, multiple physical sidelink shared channels each carry different transport blocks.

Or, optionally, when the first terminal device sends the sharing indication information according to the resource indication information, the first terminal device continuously sends the same physical sidelink shared channel and/or physical sidelink control channel multiple times in the time domain, and the multiple The information carried by the secondary physical sidelink shared channel is the same. For example, multiple physical sidelink shared channels carry the same transport block. In this case, the physical sidelink shared channel is the first physical sidelink shared channel sent after the first terminal device successfully accesses the channel, and the physical sidelink control channel is the physical sidelink control channel associated with the physical sidelink shared channel, That is, the resources of the physical sidelink shared channel are indicated by the control information carried by the physical sidelink control channel.

Or, optionally, when the first terminal device sends the sharing indication information according to the resource indication information, the first terminal device sends the physical sidelink shared channel on resources of multiple time slots.

Exemplarily, the transmission order of terminal devices used for side-link transmission among multiple terminal devices is related to one or more of the following: the priority of the information to be transmitted by the terminal device, the remaining packet delay budget of the information to be transmitted by the terminal device, or terminal The number of transmission blocks of information to be transmitted by the device. In this way, the transmission order of the terminal device can be determined based on the priority of the information to be transmitted by the terminal device, the remaining packet delay budget of the information to be transmitted by the terminal device, or the number of transmission blocks of the information to be transmitted by the terminal device. For example, high-priority information can be Or, information with a small remaining packet delay budget can be sent first, or information with a large number of transmission blocks can be sent first, so that the service quality of sidelink transmission can be better ensured.

The third aspect is to provide a resource indication method. The resource indication method includes: the second terminal device receives sharing indication information from the first terminal device. Wherein, the first terminal device is one of the plurality of terminal devices, and the second terminal device is a terminal device among the plurality of terminal devices except the first terminal device. The sharing indication information is used to indicate that the first terminal device successfully initializes the channel occupancy time of the channel shared by multiple terminal devices. The second terminal device sends the information to be transmitted according to the sharing instruction information.

Based on the resource indication method provided in the third aspect, the second terminal device can receive the sharing indication information and send the information to be transmitted according to the sharing indication information. The sharing indication information is used to indicate the first terminal device's successful initial channel occupancy time. In this way, the second terminal device can send information on the channel occupancy time indicated by the sharing indication information, thereby reducing the need for different terminal devices to send their own to-be-transmitted messages. time interval between messages to reduce channel access time and improve communication efficiency.

Optionally, the second terminal device sends the information to be transmitted according to the sharing indication information, which may include: the second terminal device sends the information to be transmitted according to the sharing indication information and the resource indication information. The resource indication information may be used to indicate: a channel occupancy time of a channel shared by multiple terminal devices, and information about a terminal device that is allowed to initialize the channel occupancy time of the shared channel.

Optionally, the resource indication method described in the third aspect further includes: the second terminal device receiving resource indication information.

Optionally, the resource indication information may also be used to indicate: frequency domain resource information within the channel occupation duration. Or, among multiple terminal devices, the time domain resource information and/or frequency domain resource information occupied by different terminal devices respectively within the channel occupation duration. In this way, the terminal device can monitor the channel on the configured resources, which can reduce the workload and further improve communication efficiency.

In a possible design solution, the sharing indication information can at least be used to indicate the channel occupancy duration of a channel shared by multiple terminal devices. In this way, the second terminal device can perform listening before transmitting with a short time interval within the channel occupation time according to the sharing indication information, thereby improving channel utilization and thereby improving communication efficiency.

Optionally, the sharing indication information may also be used to indicate: the transmission sequence of terminal devices used for sidelink transmission among multiple terminal devices within the channel occupation duration.

Further, in the second terminal device, the identification information and/or resource allocation information of the X terminal devices in the first transmission order are carried in the first-level sideline control information, and X is a positive integer greater than or equal to 1. In this way, the identification information and/or resource allocation information of the processing time of the previous X terminal devices, thus improving reliability.

Exemplarily, the transmission order of the second terminal device is related to one or more of the following: the priority of the information to be transmitted by the terminal device, the remaining packet delay budget of the information to be transmitted by the terminal device, or the transmission block of the information to be transmitted by the terminal device quantity. In this way, the transmission order of the terminal device can be determined based on the priority of the information to be transmitted by the terminal device, the remaining packet delay budget of the information to be transmitted by the terminal device, or the number of transmission blocks of the information to be transmitted by the terminal device. For example, high-priority information can be Or, information with a small remaining packet delay budget can be sent first, or information with a large number of transmission blocks can be sent first, so that the service quality of sidelink transmission can be better ensured.

The fourth aspect provides a resource indication method. The resource indication method includes: determining resource indication information and sending the resource indication information. The resource indication information is used to indicate: a channel occupancy time of a channel shared by multiple terminal devices, and information about a terminal device that is allowed to initialize the channel occupancy time of the shared channel.

Based on the resource indication method provided in the fourth aspect, the third-party device can determine the time length of the channel occupancy for the first terminal device, and the first terminal device is the terminal device of the initial channel occupancy time indicated by the terminal device information of the initial channel occupancy time. In this case, the initial channel occupancy time of the channel shared by multiple terminal devices is determined based on the third-party device. In this way, the calculation amount of the first terminal device can be reduced and the overhead can be reduced.

In a possible design solution, the resource indication information can also be used to indicate frequency domain resource information within the channel occupation duration.

The fifth aspect provides a resource indication method. The resource indication method includes: the first terminal device receives resource indication information, and sends information to be transmitted according to the resource indication information. The resource indication information is used to indicate: a channel occupancy time of a channel shared by multiple terminal devices, and information about a terminal device that is allowed to initialize the channel occupancy time of the shared channel.

In a possible design solution, the resource indication information can also be used to indicate: frequency domain resource information within the channel occupation duration.

Regarding the technical effect of the fifth aspect, please refer to the technical effect of the fourth aspect, and will not be described again here.

A sixth aspect provides a communication device. The communication device includes: a processing module and a transceiver module. Among them, the processing module is used to determine resource indication information. The resource indication information is used to indicate: a channel occupancy time of a channel shared by multiple terminal devices, and information about a terminal device that is allowed to initialize the channel occupancy time of the shared channel. The sending module is used to send resource indication information.

In addition, the resource indication information may be carried in higher layer signaling or control information. Control information is used to indicate downlink transmission or sidelink transmission. The high-level signaling can be radio resource control signaling, media access control control unit signaling, PC5 radio resource control signaling or PC5 media access control control unit signaling. The control information can be downlink control information or sidelink control. information.

It should be noted that the transceiver module can send the resource indication information in a broadcast manner, a multicast manner, or a unicast manner.

For example, the resource indication information may be carried in downlink control information, and the resource indication information may be sent in a multicast manner. In this case, optionally, the downlink control information may be scrambled by a wireless network temporary identifier, and the The wireless network temporary identifier is related to the identification information of the group to which the terminal device that receives the resource indication information belongs. If the resource indication information can be carried in the downlink control information, and the resource indication information is sent in a unicast manner, in this case, optionally, the downlink control information can be scrambled by the wireless network temporary identifier, and the wireless network temporary identifier The identification is related to the pairing identification corresponding to the terminal device that receives the resource indication information.

In one possible design solution, the sending module is specifically configured to send resource indication information to multiple terminal devices.

In this case, the resource indication information can be sent in a broadcast, multicast, or unicast manner. For example, for To reduce the cost of sending resource indication information, resource indication information can be sent in a broadcast or multicast manner.

In one possible design solution, the sending module is specifically configured to send resource indication information to a first terminal device among the plurality of terminal devices.

In a possible design solution, the resource indication information can also be used to indicate: frequency domain resource information within the channel occupation duration. Or, time domain resource information and/or frequency domain resource information occupied by different types of terminal devices among multiple terminal devices within the channel occupation duration.

It can be understood that the resource indication information can also be used to indicate the listen-before-send type of the terminal device.

Optionally, the transmission order of the terminal devices used for side-link transmission among multiple terminal devices within the channel occupation time may be related to one or more of the following: the priority of the information to be transmitted by the terminal device, the priority of the information to be transmitted by the terminal device. The remaining packet delay budget, or the number of transmission blocks of information to be transmitted by the terminal device.

Optionally, the transceiver module may include a receiving module and a sending module. Wherein, the transceiver module is used to implement the transceiver function of the communication device described in the sixth aspect.

Optionally, the communication device according to the sixth aspect may further include a storage module that stores programs or instructions. When the processing module executes the program or instruction, the communication device can execute the resource indication method described in the first aspect.

It should be noted that the communication device described in the sixth aspect may be a terminal device or a network device, or may be a chip (system) or other component or component that can be disposed in the terminal device or network device, or may include a terminal device. Or network equipment, this application does not limit this.

In addition, the technical effects of the communication device described in the sixth aspect can be referred to the technical effects of the resource indication method described in the first aspect, which will not be described again here.

In a seventh aspect, a first terminal device is provided. The first terminal device includes: a receiving module and a sending module. Among them, the receiving module is used to receive resource indication information. Wherein, the first terminal device is one of multiple terminal devices, and the resource indication information is used to indicate: a channel occupancy time of a channel shared by multiple terminal devices, and a terminal device that is allowed to initialize the channel occupancy time of the shared channel. information. The sending module sends the sharing indication information according to the resource indication information. The sharing indication information is used to indicate that the first terminal device successfully initializes the channel occupancy time of a channel shared by multiple terminal devices.

In a possible design solution, the resource indication information can also be used to indicate: frequency domain resource information within the channel occupation duration. Or, among multiple terminal devices, the time domain resource information and/or frequency domain resource information occupied by different terminal devices respectively within the channel occupation duration.

In a possible design solution, the sharing indication information can be used to at least indicate the channel occupancy duration of a channel shared by multiple terminal devices.

Optionally, the resource indication information may also be used to indicate: among multiple terminal devices, the transmission sequence within the channel occupation duration of the terminal devices used for sidelink transmission.

It should be noted that in this embodiment of the present application, the sharing instruction information may be carried in one or more of the following: first-level Sidelink control information, second-level sidelink control information, media access control-control unit, or sidelink shared channel.

Optionally, a terminal device other than the first terminal device among the plurality of terminal devices is a second terminal device. Among the second terminal devices of multiple terminal devices, the identification information and/or resource allocation information of the X terminal devices in the first transmission order may be carried in the first-level sideline control information, where X is a positive integer greater than or equal to 1.

Or, optionally, when the first terminal device sends sharing indication information according to the resource indication information, the first terminal device may continuously send multiple physical sidelink shared channels, and the multiple physical sidelink shared channels carry different information.

Or, optionally, when the first terminal device sends the sharing indication information according to the resource indication information, the first terminal device continuously sends the same physical sidelink shared channel and/or physical sidelink control channel multiple times in the time domain, where In this case, the physical sidelink shared channel is the first physical sidelink shared channel sent after the first terminal device successfully accesses the channel, and the physical sidelink control channel is the physical sidelink control channel associated with the physical sidelink shared channel, That is, the resources of the physical sidelink shared channel are indicated by the control information carried by the physical sidelink control channel.

Exemplarily, the transmission order of terminal devices used for side-link transmission among multiple terminal devices is related to one or more of the following: the priority of the information to be transmitted by the terminal device, the remaining packet delay budget of the information to be transmitted by the terminal device, Or the number of transmission blocks of information to be transmitted by the terminal device.

Optionally, the sending module and the receiving module can also be integrated into one module, such as a transceiving module. The transceiver module is used to implement the sending function and receiving function of the communication device.

Optionally, the first terminal device described in the seventh aspect may further include a processing module. Wherein, the processing module is used to implement the processing function of the first terminal device.

Optionally, the first terminal device described in the seventh aspect may further include a storage module that stores programs or instructions. When the processing module executes the program or instruction, the first terminal device can execute the resource indication method described in the second aspect.

It should be noted that the first terminal device described in the seventh aspect may be a terminal device, a chip (system) or other components or components that can be installed in the terminal device, or a device including the terminal device. This invention There are no restrictions on this application.

In addition, the technical effects of the first terminal device described in the seventh aspect may be referred to the technical effects of the resource indication method described in the second aspect, which will not be described again here.

In an eighth aspect, a second terminal device is provided. The second terminal device includes: a receiving module and a sending module. Wherein, the receiving module is used to receive sharing indication information from the first terminal device. The first terminal device is one of the plurality of terminal devices, and the second terminal device is a terminal device among the plurality of terminal devices except the first terminal device. The sharing indication information is used to indicate that the first terminal device successfully initializes the channel occupancy time of multiple terminal devices. The sending module is used to send the information to be transmitted according to the sharing instruction information.

Optionally, the sending module is specifically configured for the second terminal device to send the information to be transmitted according to the sharing indication information and the resource indication information. The resource indication information comes from the network device or the third terminal device. The resource indication information may be used to indicate: a channel occupancy time of a channel shared by multiple terminal devices, and information about a terminal device that is allowed to initialize the channel occupancy time of the shared channel.

Optionally, the receiving module is also configured for the device to receive resource indication information.

Optionally, the resource indication information may also be used to indicate: frequency domain resource information within the channel occupation duration. Or, among multiple terminal devices, the time domain resource information and/or frequency domain resource information occupied by different terminal devices respectively within the channel occupation duration.

In a possible design solution, the sharing indication information can at least be used to indicate the channel occupancy duration of a channel shared by multiple terminal devices.

Optionally, the sharing indication information may also be used to indicate: among multiple terminal devices, the transmission sequence within the channel occupation duration of the terminal devices used for sidelink transmission.

Further, in the second terminal device, the identification information and/or resource allocation information of the X terminal devices in the first transmission order are carried in the first-level sideline control information, and X is a positive integer greater than or equal to 1.

Exemplarily, the transmission order of the second terminal device is related to one or more of the following: the priority of the information to be transmitted by the terminal device, the remaining packet delay budget of the information to be transmitted by the terminal device, or the transmission block of the information to be transmitted by the terminal device quantity.

Optionally, the sending module and the receiving module can also be integrated into one module, such as a transceiving module. The transceiver module is used to implement the sending function and receiving function of the second terminal device.

Optionally, the second terminal device described in the eighth aspect may further include a processing module. Wherein, the processing module is used to implement the processing function of the second terminal device.

Optionally, the second terminal device described in the eighth aspect may further include a storage module that stores programs or instructions. When the processing module executes the program or instruction, the second terminal device can execute the resource indication method described in the third aspect.

It should be noted that the second terminal device described in the eighth aspect may be a terminal device, a chip (system) or other components or components that can be installed in the terminal device, or a device including the terminal device. This invention There are no restrictions on this application.

In addition, the technical effects of the second terminal device described in the eighth aspect may be referred to the technical effects of the resource indication method described in the third aspect, which will not be described again here.

In a ninth aspect, a communication device is provided. The communication device includes: a processing module and a sending module. Among them, the processing module is used to determine resource indication information. The resource indication information is used to indicate: a channel occupancy time of a channel shared by multiple terminal devices, and information about a terminal device that is allowed to initialize the channel occupancy time of the shared channel. The sending module is used to send resource indication information.

Optionally, the transceiver module may include a receiving module and a sending module. Wherein, the transceiver module is used to implement the sending function and receiving function of the communication device described in the ninth aspect.

Optionally, the communication device according to the ninth aspect may further include a storage module that stores programs or instructions. When the processing module executes the program or instruction, the communication device can execute the resource indication method described in the fourth aspect.

It should be noted that the communication device described in the ninth aspect may be a terminal device or a network device, or may be The chip (system) or other components or components provided in the terminal equipment or network equipment may also be a device including the terminal equipment or network equipment, which is not limited in this application.

In addition, the technical effects of the communication device described in the ninth aspect can be referred to the technical effects of the resource indication method described in the fourth aspect, which will not be described again here.

In a tenth aspect, a first terminal device is provided. The first terminal device includes: a receiving module and a sending module. The receiving module is used for receiving resource indication information. The sending module is used to send the information to be transmitted according to the resource indication information. The resource indication information is used to indicate: a channel occupancy time of a channel shared by multiple terminal devices, and information about a terminal device that is allowed to initialize the channel occupancy time of the shared channel.

Optionally, the sending module and the receiving module can also be integrated into one module, such as a transceiving module. The transceiver module is used to implement the sending function and receiving function of the first terminal device.

Optionally, the first terminal device described in the tenth aspect may further include a processing module. Wherein, the processing module is used to implement the processing function of the first terminal device.

Optionally, the first terminal device described in the tenth aspect may further include a storage module that stores programs or instructions. When the processing module executes the program or instruction, the first terminal device can execute the resource indication method described in the fifth aspect.

It should be noted that the first terminal device described in the tenth aspect may be a terminal device, a chip (system) or other components or components that can be installed in the terminal device, or a device including the terminal device. This invention There are no restrictions on this application.

In addition, the technical effects of the first terminal device described in the tenth aspect can be referred to the technical effects of the resource indication method described in the fifth aspect, which will not be described again here.

In an eleventh aspect, a communication device is provided. The communication device is configured to perform the resource indication method described in any one of the implementation modes of the first to fifth aspects.

In this application, the communication device described in the eleventh aspect may be a terminal device or a network device, or may be a chip (system) or other component or component that is disposed in the terminal device or network device, or may include the terminal device or The installation of network equipment.

It should be understood that the communication device described in the eleventh aspect includes a corresponding module, unit, or means (means) for implementing the resource indication method described in any one of the first to fifth aspects. The module, unit, or means The means can be implemented by hardware, software, or by hardware executing corresponding software implementation. The hardware or software includes one or more modules or units for performing the functions involved in the above resource indication method.

In addition, the technical effects of the communication device described in the eleventh aspect can be referred to the technical effects of the resource indication method described in any one of the first to fifth aspects, which will not be described again here.

In a twelfth aspect, a communication device is provided. The communication device includes: a processor configured to execute the resource indication method described in any one of the possible implementations of the first to fifth aspects.

In a possible design solution, the communication device described in the twelfth aspect may further include a transceiver. The transceiver can be a transceiver circuit or an interface circuit. The transceiver can be used for the communication device described in the twelfth aspect to communicate with other communication devices.

In a possible design solution, the communication device described in the twelfth aspect may further include a memory. This memory can be integrated with the processor or provided separately. This memory may be used to store first through fifth aspects The resources described in any of the aspects indicate computer programs and/or data involved in the method.

In this application, the communication device described in the twelfth aspect may be a terminal device or a network device, or a chip (system) or other component or component that may be disposed in the terminal device or network device, or may include the terminal device or The installation of network equipment.

In addition, the technical effects of the communication device described in the twelfth aspect can be referred to the technical effects of the resource indication method described in any implementation manner of the first to fifth aspects, and will not be described again here.

In a thirteenth aspect, a communication device is provided. The communication device includes: a processor, the processor is coupled to a memory, and the processor is used to execute a computer program stored in the memory, so that the communication device executes any one of the possible implementation methods of the first to fifth aspects. resource indication method.

In a possible design solution, the communication device described in the thirteenth aspect may further include a transceiver. The transceiver can be a transceiver circuit or an interface circuit. The transceiver can be used for the communication device described in the thirteenth aspect to communicate with other communication devices.

In this application, the communication device described in the thirteenth aspect may be a terminal device or a network device, or may be a chip (system) or other component or component that is disposed in the terminal device or network device, or may include the terminal device or The installation of network equipment.

In addition, the technical effects of the communication device described in the thirteenth aspect can be referred to the technical effects of the resource indication method described in any implementation manner of the first to fifth aspects, and will not be described again here.

In a fourteenth aspect, a communication device is provided, including: a processor and a memory; the memory is used to store a computer program, and when the processor executes the computer program, the communication device performs the first to fifth aspects The resource indication method described in any one of the implementation methods.

In a possible design solution, the communication device described in the fourteenth aspect may further include a transceiver. The transceiver can be a transceiver circuit or an interface circuit. The transceiver can be used for the communication device described in the fourteenth aspect to communicate with other communication devices.

In this application, the communication device described in the fourteenth aspect may be a terminal device or a network device, or may be a chip (system) or other component or component provided in the terminal device or network device, or may include the terminal device or The installation of network equipment.

In addition, the technical effects of the communication device described in the fourteenth aspect can be referred to the technical effects of the resource indication method described in any implementation manner of the first to fifth aspects, and will not be described again here.

In a fifteenth aspect, a communication device is provided, including: a processor; the processor is configured to be coupled to a memory, and after reading the computer program in the memory, execute the steps in the first to fifth aspects according to the computer program. The resource indication method described in any implementation manner.

In a possible design solution, the communication device described in the fifteenth aspect may further include a transceiver. The transceiver can be a transceiver circuit or an interface circuit. The transceiver can be used for the communication device described in the fifteenth aspect to communicate with other communication devices.

In this application, the communication device described in the fifteenth aspect may be a terminal device or a network device, or a chip (system) or other component or component that may be disposed in the terminal device or network device, or may include the terminal device or The installation of network equipment.

In addition, the technical effects of the communication device described in the fifteenth aspect can be referred to the technical effects of the resource indication method described in any implementation manner of the first to fifth aspects, and will not be described again here.

In a sixteenth aspect, a processor is provided. Wherein, the processor is used to execute any of the first aspect to the fifth aspect. One possible implementation manner is the resource indication method.

In a seventeenth aspect, a communication system is provided. The communication system includes one or more terminal devices and one or more network devices.

An eighteenth aspect provides a communication system. The communication system includes multiple terminal devices.

In a nineteenth aspect, a computer-readable storage medium is provided, including: a computer program or instructions; when the computer program or instructions are run on a computer, the computer is caused to execute any one of the possible methods of the first to fifth aspects. Implement the resource indication method described in the method.

In a twentieth aspect, a computer program product is provided, including a computer program or instructions. When the computer program or instructions are run on a computer, the computer is caused to execute any one of the possible implementation methods of the first to fifth aspects. The resource indication method described above.

Description of drawings

Figure 1 is a schematic diagram of a transmission process based on dynamic scheduling provided by an embodiment of the present application;

Figure 2 is a schematic diagram of the transmission process based on configuration authorization type 1 provided by the embodiment of the present application;

Figure 3 is a schematic diagram of the transmission process based on configuration authorization type 2 provided by the embodiment of the present application;

Figure 4 is a schematic diagram 1 of the architecture of the communication system provided by the embodiment of the present application;

Figure 5 is a schematic diagram of an implementation of the communication system shown in Figure 4 provided by the implementation of this application;

Figure 6 is another implementation schematic diagram of the communication system shown in Figure 4 provided by the implementation of this application;

Figure 7 is another implementation schematic diagram of the communication system shown in Figure 4 provided by the implementation of this application;

Figure 8 is a schematic diagram 2 of the architecture of the communication system provided by this application;

Figure 9 is a schematic flowchart on the network device side of a resource indication method provided by an embodiment of the present application;

Figure 10 is a schematic flowchart on the terminal device side of a resource indication method provided by an embodiment of the present application;

Figure 11 is a schematic flowchart of a resource indication method in a scenario provided by an embodiment of the present application;

Figure 12 is a schematic diagram 1 of the mapping relationship between terminal equipment and transmission sequence provided by the embodiment of the present application;

Figure 13 is a schematic diagram 2 of the mapping relationship between terminal equipment and transmission sequence provided by the embodiment of the present application;

Figure 14 is a schematic diagram 1 of the sending and receiving relationship indicated by the resource indication information provided by the embodiment of the present application;

Figure 15 is a schematic diagram 2 of the sending and receiving relationship indicated by the resource indication information provided by the embodiment of the present application;

Figure 16 is a schematic flowchart of a resource indication method in another scenario provided by an embodiment of the present application;

Figure 17 is a schematic flowchart of a resource indication method in yet another scenario provided by an embodiment of the present application;

Figure 18 is a schematic flowchart of another resource indication method provided by an embodiment of the present application;

Figure 19 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

Figure 20 is a schematic structural diagram of a first terminal device provided by an embodiment of the present application;

Figure 21 is a schematic structural diagram of a second terminal device provided by an embodiment of the present application;

Figure 22 is a schematic structural diagram of a communication device provided by an embodiment of the present application.

Detailed ways

The technical solutions in this application will be described below with reference to the accompanying drawings.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as wireless fidelity (WiFi) systems, vehicle-to-everything (V2X) communication systems, and device-to-device (D2D) systems. Communication systems, Internet of Vehicles communication systems, 4th generation (4G) mobile communication systems, such as long term evolution (LTE) systems, global interoperability for microwave access (WiMAX) communication systems, fifth generation(5th generation, 5G) mobile communication systems, such as new radio (NR) systems, and future communication systems, such as the sixth generation (6th generation, 6G) mobile communication systems.

This application will present various aspects, embodiments, or features in terms of systems, which may include multiple devices, components, modules, etc. It should be understood and appreciated that various systems may include additional devices, components, modules, etc., and/or may not include all devices, components, modules, etc. discussed in connection with the figures. Additionally, a combination of these scenarios can be used.

In addition, in the embodiments of this application, words such as "exemplarily" and "for example" are used to represent examples, illustrations or explanations. Any embodiment or design described herein as "example" is not intended to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the word example is intended to present a concept in a concrete way.

In the embodiments of this application, "information", "signal", "message", "channel" and "signaling" can sometimes be used interchangeably. It should be noted that, When the difference is not emphasized, the meanings they convey are the same. "Of", "corresponding, relevant" and "corresponding" can sometimes be used interchangeably. It should be noted that when the difference is not emphasized, the meanings they convey are consistent.

In the embodiments of this application, sometimes a subscript such as W ₁ may be mistakenly written as a non-subscript form such as W1. When the difference is not emphasized, the meanings to be expressed are consistent. The network architecture and business scenarios described in the embodiments of this application are for the purpose of explaining the technical solutions of the embodiments of this application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. Those of ordinary skill in the art will know that with the network With the evolution of architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

In wireless communication systems, such as 5G mobile communication systems, resources used by terminal equipment to transmit information, such as control information, data, or feedback information, on the sidelink (sidelink) can be based on resource allocation mode 2 (mode2) and Resource allocation mode one (mode 1) is determined. Among them, in the second resource allocation method, the terminal device can sense the reserved resources (configured by network equipment such as base stations or pre-configured in the terminal device) through the terminal device itself, and determine from the reserved resources the resources used in the sideline. A resource for transmitting information on a link. In resource allocation method 1, network equipment, such as base stations, performs resource scheduling and indicates resources for transmitting information on sidelinks to terminal equipment.

It can be understood that in the 4G mobile communication system, the first resource allocation method can also be mode 3 (mode 3), and the second resource allocation method can also be mode 4 (mode 4).

To determine resources based on resource allocation method 1, the terminal device needs to transmit information according to the resources indicated by the network device. Among them, resource scheduling can be implemented based on one of the following three methods: The method for network equipment to allocate resources can include one of the following three resource scheduling methods: dynamic scheduling (DG), configured grant type 1, CG type 1) and configured grant type 2 (configured grant type 2). The following takes a communication system including a network device, a terminal device 1 and a terminal device 2, and the terminal device 1 sends information to be transmitted to the terminal device 2 as an example to illustrate the transmission processes based on the three resource scheduling methods.

Figure 1 shows the transmission process based on dynamic scheduling. As shown in Figure 1, the transmission process based on dynamic scheduling includes S101 to S107.

S101. The terminal device 1 sends a scheduling request (SR) to the network device. The SR is used to request the network device to allocate resources for the terminal device 1 to send information to be transmitted.

S102: After receiving the SR, the network device sends downlink control information (DCI) 1 to the terminal device 1. Among them, DCI1 is used to instruct terminal device 1 to report buffer status report (buffer status report (BSR) information. The BSR information is used to indicate the status of the information to be transmitted in the terminal device 1, such as the size, etc.

S103: Terminal device 1 sends BSR information to the network device according to DCI1.

S104: After receiving the BSR information, the network device sends DCI2 to terminal device 1. Among them, DCI2 includes information used to indicate the physical sidelink control channel (physical sidelink control channel, PSCCH) and/or the physical sidelink shared channel (physical sidelink shared channel, PSSCH). Among them, PSCCH and/or PSSCH are determined based on BSR information.

S105: Terminal equipment 1 sends the information to be transmitted to terminal equipment 2 on the PSCCH and/or PSSCH indicated by DCI2. It can also be said that terminal equipment 1 sends PSCCH and/or PSSCH to terminal equipment 2 according to DCI2.

S106. Terminal device 2 sends hybrid automatic repeat request (HARQ) information to terminal device 1.

S107: Terminal device 1 sends HARQ information to the network device.

Figure 2 shows the transmission process based on configuration authorization type one. As shown in Figure 2, the transmission process based on configuration authorization type 1 includes S201 to S204.

S201. The network device sends radio resource control (radio resource rontrol, RRC) signaling to the terminal device 1. The RRC signaling includes information indicating PSCCH and/or PSSCH.

S202: The terminal device 1 sends the information to be transmitted to the terminal device 2 on the PSCCH and/or PSSCH.

S203. Terminal device 2 sends HARQ information to terminal device 1. The HARQ information is used to indicate successful transmission or failure of transmission of the information to be transmitted.

S204: Terminal device 1 sends HARQ information to the network device.

Figure 3 shows the transmission process based on configuration authorization type 2. As shown in Figure 3, the transmission process based on configuration authorization type 2 includes S301 to S305.

S301. The network device sends RRC signaling to the terminal device 1. The RRC signaling includes resources used to indicate the terminal device 1 .

S302: The network device sends DCI to the terminal device 1, where the DCI is used to indicate activation of sideline transmission.

S303: The terminal device 1 sends the information to be transmitted to the terminal device 2 on the PSCCH and/or PSSCH. It can also be said that the terminal equipment 1 sends PSCCH and/or PSSCH according to RRC signaling.

S304: Terminal device 2 sends HARQ information to terminal device 1.

S305: Terminal device 1 sends HARQ information to the network device.

On the unlicensed spectrum, different radio access technologies (RATs) can share channels on the unlicensed spectrum. For example, cellular networks (such as 5G networks, LTE networks) and wireless local area networks (WLAN), such as wireless fidelity (WiFi) technology networks, can share channels on unlicensed spectrum. Based on the principle of fair channel competition, equipment using different RATs, such as base stations, terminal equipment, wireless access points, etc., need to perform clear channel access (CCA) when accessing unauthorized channels. Only this The device cannot use the channel to send data until the channel is evaluated as idle. Among them, idle channel evaluation can be implemented in a listen-before-talk (LBT) manner. Listen first and speak later, which can also be called listening first and speaking later.

In some possible design solutions, in order to reduce the number of LBTs and improve transmission efficiency, after a device (terminal device or network device) accesses the channel, the device can continue to occupy a period of transmission time, which can be called a transmission time. Channel occupancy time (COT). The maximum value of COT (maximum COT, MCOT) is related to the type of terminal equipment LBT and channel access priority class (CAPC). If the device that accesses the channel through type 1 LBT is a base station, and the base station successfully accesses the channel, it can be considered that the base station has successfully initialized the COT. In this case, the base station can share the channel in the COT with the terminal device. Alternatively, if the device accessing the channel through type 1 LBT is a terminal device, and the terminal device successfully accesses the channel, it can be considered that the terminal device has successfully initialized the COT. In this case, the terminal device can share the channel in the COT with the base station. . It is understandable that terminal devices can also share channels within the COT.

In the process of sharing the channel in the COT, if the time interval between transmissions of the devices sharing the channel in the COT (i.e., the time interval between two adjacent pieces of information in the domain) is less than the duration threshold, the device may not proceed LBT or shorter LBT, such as Type 2 LBT. Among them, Type 2 includes Type 2A (Type-2A), Type 2B (Type-2B) or Type 2C (Type-2C). For example, if the time interval between transmissions of devices sharing the channel within the COT is less than 16 microseconds (microsecond, μs), the equipment that shares the channel in the COT, such as the base station or terminal equipment, does not need to perform LBT, that is, it only performs type 2C LBT; when the time interval between transmissions is equal to 16 μs, the equipment that shares the channel in the COT , such as base stations or terminal equipment can only perform type 2B LBT. Alternatively, when the time interval between transmissions is greater than or equal to 25 μs, equipment sharing the channel within the COT, such as base stations or terminal equipment, can do Type 2A LBT. It should be noted that the above type 2 LBT can avoid performing a random backoff process, so generally, the time interval between transmissions of type 2 LBT is smaller than the time interval between transmissions of type 1 LBT.

In some possible design solutions, in the sidelink technology of the new air interface, in order to meet the demand for greater data transmission rate, communication can be carried out in unlicensed spectrum channels. When the terminal device transmits data on the unlicensed spectrum channel, it needs to perform Type 1 LBT before each data transmission, and then sends data when the unlicensed spectrum channel is idle.

However, in the above solution, when there are multiple terminal devices in the sidelink, each terminal device needs to perform type 1 LBT before sending data. Since the terminal device needs to perform random backoff during the type 1 LBT process, This results in long access time for terminal devices and low communication efficiency.

In order to facilitate understanding of the embodiments of the present application, the communication system applicable to the embodiments of the present application is first described with reference to FIGS. 4 to 8 . Exemplarily, FIG. 4 is a schematic diagram 1 of the architecture of a communication system to which the resource indication method provided by the embodiment of the present application is applicable. As shown in Figure 4, the communication system in the embodiment of the present application may include a network device and multiple terminal devices. Wherein, communication connections are established between the network device and multiple terminal devices (terminal device 1 to terminal device 4). The network device may determine COT-related information, such as resource indication information, used by multiple terminal devices to transmit information to be transmitted on the sidelink link, and indicate the COT-related information to at least one terminal device among the multiple terminal devices.

A communication connection can be established between each two terminal devices in the plurality of terminal devices and communicate with each other through side links (ie, perform side link transmission). For example, a communication connection can be established between terminal device 1 and terminal device 2, and side transmission can be performed. A communication connection can be established between terminal device 1 and terminal device 3, and side transmission can be performed. A communication connection can be established between terminal equipment 3 and terminal equipment 4, and side transmission can be performed. A communication connection can be established between the terminal device 1 and the terminal device 4, and side transmission can be performed (shown in Figure 4). A communication connection can be established between the terminal device 2 and the terminal device 4, and side transmission can be performed (not shown in Figure 4).

Wherein, the above-mentioned network device is a device located on the network side of the above-mentioned communication system and having a wireless transceiver function, or a chip or chip system that can be installed on the device. The network equipment includes but is not limited to: access points (APs) in wireless fidelity (WiFi) systems, such as home gateways, routers, servers, switches, bridges, etc., evolved node B (evolved Node B, eNB), wireless network controller (radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved NodeB, or home Node B , HNB), baseband unit (BBU), wireless relay node, wireless backhaul node, transmission point (transmission and reception point, TRP or transmission point, TP), etc., and can also be 5G, such as new air interface ( gNB, or transmission point (TRP or TP) in a new radio (NR) system, one or a group (including multiple antenna panels) of antenna panels of a base station in a 5G system, or may also constitute a gNB or transmission point Network nodes, such as baseband unit (BBU), distributed unit (DU), road side unit (RSU) with base station function, etc.

The above-mentioned terminal device is a terminal that is connected to the above-mentioned communication system and has a wireless transceiver function, or a chip or chip system that can be installed on the terminal. The terminal equipment may also be referred to as an access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communications device, user agent or user device. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, or an augmented reality (AR) terminal. Equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation security ( Wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, vehicle-mounted terminals, RSUs with terminal functions, etc. The terminal device of this application can also be a vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit built into the vehicle as one or more components or units. The vehicle uses the built-in vehicle-mounted module, vehicle-mounted module, The vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit can implement the resource indication method provided by this application.

The communication system shown in Figure 4 is further described below with reference to specific scenarios. Specific application scenarios of the communication system shown in Figure 4 may include a scenario of combining cellular communication with terminal direct communication, a scenario of combining cellular communication with the Internet of Vehicles, or a scenario of WiFi communication.

Exemplarily, FIG. 5 is a schematic diagram 1 of the architecture of the communication system shown in FIG. 4 in a specific scenario. As shown in Figure 5, in a scenario where the application scenario of the communication system is a combination of cellular communication and terminal direct communication, the network device can be a base station; the terminal device can be a mobile phone, for example, terminal device 1 is mobile phone 1, and terminal device 2 is a mobile phone. 2. Terminal device 3 is mobile phone 3, and terminal device 4 is mobile phone 4.

Exemplarily, FIG. 6 is a schematic diagram 2 of the architecture of the communication system shown in FIG. 4 in a specific scenario. As shown in Figure 6, in a scenario where cellular communication and Internet of Vehicles are combined; the network device can be a base station and the terminal device can be a vehicle. For example, terminal device 1 is vehicle 1, terminal device 2 is vehicle 2, terminal device 3 is vehicle 3, and terminal device 4 is vehicle 4.

Exemplarily, FIG. 7 is a schematic diagram 3 of the architecture of the communication system shown in FIG. 4 in a specific scenario. As shown in Figure 7, in the WiFi communication scenario, the network device can be a wireless access point (AP), such as a router, network access device, etc., and the terminal device can be a mobile phone, for example, terminal device 1 is mobile phone 1, Terminal device 2 is mobile phone 2, terminal device 3 is mobile phone 3, and terminal device 4 is mobile phone 4.

It can be understood that the above-mentioned Figures 5 to 7 are only examples. During specific implementation, the network device or terminal device can also be other devices in the corresponding scenario, which will not be described again here. In addition, the communication system shown in FIGS. 4 to 7 may also include fewer terminal devices. For example, only terminal device 1 and terminal device 2 are included.

In addition, the resource indication method provided by the embodiment of the present application can also be applied to the scenario of direct terminal communication. Exemplarily, FIG. 8 is a schematic diagram 2 of the architecture of a communication system to which the resource indication method provided by the embodiment of the present application is applicable. As shown in FIG. 8 , the communication system includes a plurality of terminal devices (terminal device 1 to terminal device 4 ), and the communication system also includes a terminal device 5 . Among them, the terminal device 5 establishes communication connections with the terminal devices 1 to 4 respectively to implement the functions of the network device in Figure 4, which will not be described again here. Among them, each two terminal devices can communicate through sidelinks (sidelink transmission). For example, terminal equipment 1 and terminal equipment 3 can communicate through side links. Among them, the terminal device 1 to the terminal device 5 can refer to the introduction of the terminal device in Figure 4 above, and will not be described again here.

In addition, the communication system shown in Figure 8 may also include fewer terminal devices. For example, only terminal device 1 and terminal device 5 are included.

It should be noted that the communication method provided by the embodiment of the present application can be applied to the communication system shown in Figure 4 or the communication system shown in Figure 8. For specific implementation, please refer to the following method embodiments, which will not be described again here.

It should be noted that the solutions in the embodiments of the present application can also be applied to other communication systems, and the corresponding names can also be replaced with the names of corresponding functions in other communication systems.

It should be understood that FIGS. 4 to 8 are only simplified schematic diagrams for ease of understanding. The communication system may also include other network devices and/or other terminal devices, which are not shown in FIGS. 4 to 8 .

To facilitate understanding, the following embodiments will be described by taking the communication system shown in Figure 4 as an example. In the following embodiments, without special explanation, the first terminal device may be any one of the terminal devices 1 to 4 in the communication system shown in FIG. 4 , and the second terminal device may be any one of the terminal devices 1 to 4 in the communication system shown in FIG. 4 . Among the terminal devices 1 to 4, other terminal devices except the first terminal device are shown. Alternatively, the first terminal device may be any one of the terminal devices 1 to 4 shown in FIG. 8 , and the second terminal device may be any one of the terminal devices 1 to 4 shown in FIG. 8 , except for the first terminal device. In addition to other terminal devices, the third terminal device may be any one of the terminal devices 1 to 5 shown in FIG. 8 .

The resource indication method provided by the embodiment of the present application will be described in detail below with reference to Figures 9-18.

The following takes a network device as an example to illustrate how the network device side implements the resource indication method provided by the embodiments of the present application. FIG. 9 is a schematic flowchart on the network device side of the resource indication method provided by an embodiment of the present application. As shown in Figure 9, the resource indication method includes:

S901. The network device determines the resource indication information.

The resource indication information is used to indicate: the channel occupancy duration of the channel shared by multiple terminal devices, and the information of the terminal device that is allowed to initialize the COT of the shared channel.

Regarding the implementation principle of S901, please refer to the implementation principle of S1101 or S1601 in the following method embodiments, which will not be described again here.

S902: The network device sends resource indication information.

The network device may send resource indication information to multiple terminal devices, such as a first terminal device and a second terminal device. The network device may also send resource indication information to one terminal device among the multiple terminal devices, such as the first terminal device. .

Regarding the implementation principle of S902, please refer to the implementation principle of S1102 or S1602 in the following method embodiments, which will not be described again here.

Based on the above method in Figure 9, one device can determine resource indication information and send the resource indication information to multiple terminal devices, where the resource indication information is used to indicate the channel occupancy duration or length of a channel shared by multiple terminal devices. Information about the end device that allows the channel occupancy time of the initial shared channel. In this way, the terminal device that initializes the channel occupancy time of the shared channel can initialize the channel occupancy time according to the channel occupancy time of the shared channel, and share the channel occupancy time with terminal devices among multiple terminal devices, thereby reducing the number of different terminal devices. The time interval between devices sending their respective information to be transmitted reduces channel access time and improves communication efficiency.

The following uses the first terminal device and the second terminal device as examples to illustrate how the terminal devices implement the resource indication method provided by the embodiments of the present application. Figure 10 is a schematic flowchart on the terminal device side of the resource indication method provided by the embodiment of the present application. As shown in Figure 10, the resource indication method includes:

S1001. The first terminal device obtains resource indication information.

Wherein, the first terminal device is one terminal device among multiple terminal devices.

Regarding the implementation principle of S1001, please refer to the implementation principle of S1102, or S1602, or S1701 in the following method embodiments, which will not be described again here.

S1002: The first terminal device sends sharing indication information according to the resource indication information, and the second terminal device receives the sharing indication information from the first terminal device.

The second terminal device is a terminal device other than the first terminal device among the plurality of terminal devices.

Regarding the implementation principle of S1002, please refer to the implementation principle of S1103, or S1603, or S1702 in the following method embodiments, which will not be described again here.

S1003. The second terminal device sends the information to be transmitted according to the sharing instruction information.

Regarding the implementation principle of S1003, reference may be made to the implementation principle of S1104, or S1604, or S1703 in the following method embodiments, which will not be described again here.

Based on the above resource indication method in Figure 10, the first terminal device can obtain the resource indication information and send the sharing indication information according to the resource indication information. The resource indication information includes the channel occupancy time of the channel shared by multiple terminal devices, and the information of the terminal device that is allowed to initialize the channel occupancy time of the shared channel. In this way, the first terminal device can share the channel occupancy time of the shared channel with multiple terminal devices. The channel occupancy time of the channel is the initial channel occupancy time, and the channel occupancy time is shared through sharing indication information, thereby reducing the time interval between different terminal devices sending their own information to be transmitted and improving communication efficiency.

The resource indication method provided by the embodiments of the present application will be further described below with reference to specific embodiments.

In some possible embodiments, the network device may send resource indication information to multiple terminal devices. The following description takes multiple terminal devices including a first terminal device and a second terminal device as an example. Exemplarily, FIG. 11 is a schematic flowchart of a resource indication method in a scenario provided by an embodiment of the present application.

As shown in Figure 11, the communication method includes the following steps:

S1101. The network device determines the resource indication information.

A channel shared by multiple terminal devices, that is, a channel obtained by one of the multiple terminal devices performing LBT of the first type, such as type 1. Among multiple terminal devices, terminal devices other than the terminal device that performs type 1 LBT can perform a second type, such as type 2 LBT, in the channel, thereby using the channel.

The channel occupancy duration of a channel shared by multiple terminal devices can be the duration that one or more terminal devices can perform continuous transmission, that is, the duration of the channel shared by multiple terminal devices.

COT is the time that one or more terminal devices can transmit continuously on unlicensed spectrum.

The initial COT of a channel shared by multiple terminal devices (hereinafter referred to as the initial COT) refers to the terminal device performing a similar Type 1 LBT monitors and finds that the channel is idle, and successfully accesses the channel to obtain COT. The terminal equipment of the COT that initially shares the channel with multiple terminal equipment can be called the terminal equipment of the initial COT. The other terminal equipment that shares the COT and communicates on the COT is the terminal equipment that shares the COT. The terminal equipment that shares the COT can adopt type 2. LBT.

The information of the terminal device of the COT that is allowed to initially share the channel (hereinafter referred to as the channel acquisition information) may indicate that the terminal device is the terminal device of the COT of the initially shared channel, or may indicate that the terminal device is not the terminal device of the COT of the initially shared channel. equipment.

In a possible design solution, channel acquisition information can be implemented in an implicit manner. Illustratively, the channel acquisition information is related to the transmission sequence of the terminal devices used for sideline transmission among the following multiple terminal devices within the channel occupation duration. For specific implementation methods, please refer to the following situation 3-1, which will not be described again here.

In another possible design solution, channel acquisition information can be implemented in an explicit manner. For example, the channel acquisition information may be indicated by one bit, as shown in case 3-3 or case 3-5 below. Alternatively, the channel acquisition information may be carried in a bit field (instruction field) or bit map (bit map) of the resource indication information, for example, the initial COT terminal indication field, where the bit field may include multiple bits. For the principle of realizing channel acquisition information through the bit domain, please refer to the relevant introductions of Case 3-2, Case 3-4, Case 4 and Case 5 below, which will not be described again here. The principle of channel acquisition information implemented through bitmaps can be referred to the relevant introduction in case 3-2 and case 3-4 below, which will not be described again here.

In some possible design solutions, the resource indication information can also be used to indicate frequency domain resource information within the channel occupancy period, or time domain resource information and/or occupied by different terminal devices among multiple terminal devices within the channel occupancy period. Frequency domain resource information.

The frequency domain resource information may include the size or spectrum range of the frequency domain resource. The frequency domain resource information within the channel occupancy period can be the size of the frequency domain resources that the terminal device can occupy for sideline transmission within the channel occupancy period (such as physical resource block (PRB), or interlace number). information) or spectrum range.

Different terminal devices among the plurality of terminal devices may be terminal devices of different types. The type of the terminal device can be determined based on the identification information of the terminal device. In this case, the terminal device corresponding to each identification information is a terminal device of one type; different terminal devices among the multiple terminal devices may include among the multiple terminal devices. of each terminal device. In the case where the resource indication information received by the terminal devices among multiple terminal devices is the same, the type of the terminal device can also be determined based on the terminal device of the initial COT indicated in the resource indication information. The terminal device of the initial COT is one type of terminal device. , the terminal device sharing the COT is another type of terminal device; different terminal devices among the multiple terminal devices may include the initial COT terminal device and the terminal device sharing the COT. Or, in the case where the resource indication information received by terminal devices among multiple terminal devices is different, for one resource indication information, the terminal device that receives the resource indication information is a type of terminal device and does not receive the resource indication information. The terminal device is another type of terminal device; different terminal devices among the plurality of terminal devices may include terminal devices that receive respective resource indication information.

The time domain resource information may include the size of the frequency domain resource, or the time domain range of the frequency domain resource in the channel occupation duration.

The time domain resource information and/or frequency domain resource information occupied by different terminal devices among multiple terminal devices within the channel occupancy period may include: the time domain resources occupied by different terminal devices among multiple terminal devices during the channel occupancy period. information, or the frequency domain resource information occupied by different terminal devices among multiple terminal devices during the channel occupation period. information, or the time domain resource information and frequency domain resource information occupied by different terminal devices among multiple terminal devices within the channel occupation duration.

Taking the initial COT terminal device as the terminal device that first sends the information to be transmitted among multiple terminal devices as an example, optionally, the time domain resource information and/or occupied by different terminal devices among the multiple terminal devices during the channel occupancy period. Or the frequency domain resource information may include: the time domain resource size and/or the frequency domain resource size of the terminal equipment of the initial COT for transmitting the information to be transmitted, and the time domain resource size and/or the time domain resource size of all terminal equipment sharing the COT for transmitting the information to be transmitted. Frequency domain resource size. For example, the indication can be performed through a resource indication value (Resource Indication Value, RIV), including a time domain resource indication value (Time Resource Indication Value, TRIV) and a frequency domain resource indication value (Frequency Resource Indication Value, TRIV) to indicate each The size of time domain resources and/or the size of frequency domain resources occupied by the terminal device.

Or, optionally, the time domain resource information and/or frequency domain resource information occupied by different terminal devices among the multiple terminal devices within the channel occupation duration may include: the time domain resource size used by the terminal device in the initial COT to transmit the information to be transmitted. and/or frequency domain resource size, as well as the time domain resource size and/or frequency domain resource size occupied by each terminal device sharing the COT.

Optionally, each terminal device sharing a COT and the terminal device of the initial COT may occupy the same size of time domain resources and/or frequency domain resources. In this case, taking time domain resources as an example, the resource indication information can indicate: the time domain resource size used by the terminal device of the initial COT to transmit the information to be transmitted, and the time domain resource size occupied by each terminal device sharing the COT and the initial The time domain resources occupied by COT terminal equipment are the same. For example, the information used to indicate that each terminal device sharing a COT occupies the same size of time domain resources and/or frequency domain resources as the terminal device of the initial COT may be configured through RRC or carried in the DCI.

Optionally, the time domain resource information and/or frequency domain resource information occupied by different terminal devices among the multiple terminal devices within the channel occupation duration may include: the position where the terminal device of the initial COT first transmits the information to be transmitted (that is, the initial COT time domain position). For example, a time slot offset value may be carried in the DCI, which indicates the number of time slots separated between the time slot in which the DCI is received and the COT starting time slot, thereby indicating the time domain location for the initial COT.

In this way, the terminal device can monitor the channel on the configured resources, which can reduce complexity and further improve communication efficiency.

In some possible design solutions, the resource indication information may also be used to indicate: the transmission sequence (first order) of terminal devices used for sidelink transmission among multiple terminal devices within the channel occupation duration. Or, within the channel occupancy period, the terminal equipment of the initial COT sends the information to be transmitted and/or receives the sequence of information to be transmitted (second order); or, within the channel occupancy period, the terminal equipment that receives different resource indication information sends the information to be transmitted. information and/or the order in which information to be transmitted is received (third order).

The above-mentioned first sequence will first be described below.

In the case where different terminal devices among multiple terminal devices receive the same resource indication information, the resource indication information may indicate the first order.

The terminal device used for side-link transmission may be a terminal device among multiple terminal devices that needs to transmit information to be transmitted based on the side-link within the COT. The terminal device used for sideline transmission may include at least one terminal device among multiple terminal devices, such as the terminal device of the initial COT, and/or, among the multiple terminal devices, the terminal device sharing the COT with the terminal device of the initial COT (i.e., sharing the COT on channel), that is, the terminal equipment sharing the COT.

The above first sequence will be described below with reference to Example 1 and Example 2 respectively.

Example 1: All terminal devices among the plurality of terminal devices are terminal devices used for sideline transmission. In this case, the first sequence includes the transmission sequence of each terminal device among the plurality of terminal devices. For example, multiple terminal devices include terminal device 1 to terminal device 4, and the identification information of terminal device 1 to terminal device 4 is ID1 to ID4 in sequence. If terminal device 1 to terminal device 4 send the information to be transmitted in order: terminal device 1. Terminal device 3, terminal device 4, terminal device 2, the instructions in the resource indication information are: {ID1, ID3, ID4, ID2}, then the transmission sequence of each terminal device is as shown in Figure 12. Among them, terminal device 1 corresponds to transmission sequence 1, terminal device 3 corresponds to transmission sequence 2, terminal device 4 corresponds to transmission sequence 3, and terminal device 2 corresponds to transmission sequence 4. That is to say, the order in which the identification information of the terminal equipment appears is the transmission order of the terminal equipment within the channel occupation time.

Optionally, if each terminal device occupies 1 time slot to send information to be transmitted, and the channel occupation duration includes a total of 4 time slots, such as time slot n to time slot n+3, then terminal device 1 is on time slot n To send information to be transmitted, terminal device 3 sends information to be transmitted on time slot n+1, terminal device 4 sends information to be transmitted on time slot n+2, and terminal device 2 sends information to be transmitted on time slot n+3.

It can be understood that the first sequence can also be realized through the mapping relationship between the terminal equipment used for side-link transmission and the time slot in which the terminal equipment transmits the information to be transmitted within the channel occupation period. In this case, the order of time slots is the transmission order of the terminal equipment corresponding to the time slot.

It should be noted that a terminal device can transmit information multiple times within a COT. As shown in Figure 13, taking a terminal device that sends information to be transmitted as an example, if the order in which terminal device 1 to terminal device 3 sends information to be transmitted is: terminal device 1, terminal device 3, terminal device 2, terminal device 2, The identification information of terminal equipment 1 to terminal equipment 3 is ID1 to ID3 in sequence. If the COT structure indicated by the resource indication information is: {ID1, ID3, ID2, ID2}, then the transmission sequence from terminal equipment 1 to terminal equipment 3 is as shown in the figure Shown in 13. If each terminal device occupies 1 time slot when sending information to be transmitted, and the COT includes a total of 4 time slots (time slot n to time slot n+3), then terminal device 1 sends the information to be transmitted on time slot n, and the terminal Device 3 sends information to be transmitted on time slot n+1, terminal device 2 sends a message on time slot n+2, and terminal device 2 sends another message on time slot n+3.

Example 2: Among multiple terminal devices, the terminal device sharing the COT is the terminal device used for sideline transmission. In this case, the first mapping relationship includes the corresponding relationship between each terminal device sharing the COT and the transmission sequence. For example, if multiple terminal devices include terminal device 1 to terminal device 4 as shown in Figure 4, terminal device 1 is the terminal device of the initial COT, and terminal device 1 is not used for sideline transmission, then the first sequence includes terminal devices 2 to the respective transmission sequence of terminal equipment 4.

The resource indication information may indicate the transmission sequence of the terminal device by indicating the corresponding relationship between the identification information corresponding to the terminal device and the transmission sequence. The identification information corresponding to the terminal device, such as the identification information of the terminal device that sends the information to be transmitted, or the identification information of the terminal device that receives the information to be transmitted. The identification information may be an identification number (ID). In this case, the identification information of the terminal device that sends the information to be transmitted may be called the source ID, and the identification information of the terminal device that receives the information to be transmitted may be called the destination ID.

In addition, any terminal device in the COT structure can also be identified by pair identification information or group identification information. Wherein, when the terminal devices whose pairing identification information is SL send information to be transmitted in unicast mode, the information used to identify the two terminal devices for side transmission, such as the identification information of the link (link). When terminal devices whose group identification information is SL send information to be transmitted in multicast mode, it is information used to identify terminal devices in side transmission of the same service.

It should be noted that if the identification information corresponding to the terminal device passes the identification of the terminal device that receives the information to be transmitted, The information indicates that in this case, at least the terminal device that sends the information to be transmitted stores the corresponding relationship between the terminal device that sends the information to be transmitted and the terminal device that receives the information to be transmitted. If the identification information corresponding to the terminal device is represented by the pairing identification information, then in this case, at least the terminal device that sends the information to be transmitted stores the corresponding relationship between the terminal device that sends the information to be transmitted and the side link. If the identification information corresponding to the terminal device is represented by the group identification pair representation information, then in this case, at least the terminal device that sends the information to be transmitted stores the corresponding relationship between the terminal device that sends the information to be transmitted and the side link.

In this embodiment of the present application, the identification information may be the identity document of the terminal device. Or, other information that can identify the terminal device. For example, in order to simplify the resource indication information and further improve communication efficiency, the bits occupied by the identification information of the terminal device may be smaller than the bits occupied by the identity identification number information. For example, the identification information may be an intra-COT index (index), that is, it may be indexed through an intra-COT. The following combines method one to method four to explain respectively.

Method 1: The index within the COT is related to the terminal device's identity number, pairing identity number, or group identity number. Taking the mapping relationship between each terminal device and the transmission sequence as an example, the identification information of the terminal device can be obtained according to the following formula (1):
I _inCOT = (ID _UE )%L _COT ; (1)

Among them, ID _UE is the decimal representation of UE ID, L _COT is the channel occupation time, for example, 4 time slots, and % is the modulo operation (mod).

Method 2: The index within the COT is related to the PUCCH resource index (resource index) used to send the SR. In this case, the identification information of the terminal device can be obtained according to the following formula (2):
I _inCOT = (I _PUCCH )%L _COT ; (2)

I _PUCCH is the PUCCH resource index used by the UE to request sidelink resources and send SR.

When the allocated resources are semi-static CG resources, the resource index of the PUCCH may be fixed or allocated by the base station.

Method 3: The index within the COT is related to the time domain resource, frequency domain resource, or code domain resource index for transmitting the SR.

In this case, it can be obtained according to the following formula (3):
I _inCOT = (I _{starting_symb} +I _prb +I _CS )%L _COT ; (3)

Among them, I _{starting_symb} is the index of the starting symbol of the physical uplink control channel (PUCCH), I _prb is the index of the PUCCH PRB, and I _CS is the index of the code domain resource.

Method 4: The index within the COT is related to the time domain resource or frequency domain resource index for transmitting the SR.

In this case, it can be obtained according to the following formula (4),
I _inCOT = (I _{starting_symb} +I _prb )%L _COT ; (4)

Among them, I _{starting_symb} is the index of the PUCCH starting symbol, and I _prb is the index of the PUCCH PRB.

It should be noted that the transmission sequence of terminal devices used for side-link transmission among multiple terminal devices within the channel occupation time is related to one or more of the following: the priority of the terminal device's information to be transmitted, the remaining information to be transmitted by the terminal device It is related to the packet delay budget, or the number of transmission blocks of the terminal device to receive and transmit information. In other words, the transmission sequence of the terminal devices used for sideline transmission among multiple terminal devices within the channel occupation time can be determined based on one or more of the following: the priority of the terminal device's information to be transmitted, the terminal device's priority of the information to be transmitted The remaining packet delay budget, or the number of transmission blocks for the terminal device to receive and transmit information. The following examples illustrate.

Determine the transmission order according to the priority of the information to be transmitted: the terminal device with the highest priority requesting to send the data to be transmitted, or the terminal device with the highest access priority, will be used as the terminal device of the initial COT, and the terminal device will be sent according to the priority. Arrange the transmission order of multiple terminal devices from high to low.

The transmission sequence is determined based on the remaining packet delay budget of the information to be transmitted by the terminal device: the UE with the smallest PDB is used as the initial COT terminal device, and the transmission sequence of multiple terminal devices is arranged in order from small to large remaining PDB.

The transmission sequence is determined based on the number of transmission blocks of the terminal device that need to receive the information to be transmitted: the terminal device that needs to receive the largest number of TBs is used as the terminal device for the initial COT. For example, if terminal device 1 sends 1 TB to terminal device 2, terminal device 2 sends 1 TB to terminal device 1, terminal device 3 sends 1 TB to terminal device 1, terminal device 4 needs to send 1 TB to terminal device 1. TB, then the number of TBs that terminal device 1 needs to receive is 3, then terminal device 1 can be determined as the terminal device of the initial COT, that is, the transmission sequence is that terminal device 1 transmits before terminal device 2. It can be understood that the transmission order of the terminal devices sharing the COT can also be determined based on the number of TBs that each terminal device sharing the COT needs to receive. For example, the higher the number of TBs, the higher the transmission order of the terminal devices sharing the COT.

In this way, the transmission order of the terminal device can be determined based on the priority of the information to be transmitted by the terminal device, the remaining packet delay budget of the information to be transmitted by the terminal device, or the number of transmission blocks of the information to be transmitted by the terminal device. For example, high-priority information can be Or, information with a small remaining packet delay budget can be sent first, or information with a large number of transmission blocks can be sent first, so that the service quality of sidelink transmission can be better ensured.

Next, the above-mentioned second procedure will be described. The second sequence may be a transmission sequence when the resource indication information of multiple terminal devices is the same.

In some possible designs, such as the following scenarios 1 to 6, the second sequence can also be implemented in an implicit manner, for example, by indicating time domain resources of different terminal devices, such as time slots.

For example, the specific situation in which the resource indication information indicates the second order may include:

Scenario 1: The terminal device of the initial COT sends the time domain resources of the information to be transmitted.

Scenario 2: The terminal device of the initial COT receives the time domain resources of the information to be transmitted.

Scenario 3: The terminal device of the initial COT sends time domain resources for information to be transmitted and receives time domain resources for information to be transmitted.

Scenario 4: The terminal equipment sharing the COT sends the time domain resources of the information to be transmitted.

Scenario 5: The terminal equipment sharing the COT receives the time domain resources of the information to be transmitted.

Scenario 6: The terminal equipment sharing the COT sends time domain resources for information to be transmitted and receives time domain resources for information to be transmitted.

Take Scenario 1 as an example to illustrate the implicit implementation of time domain resource information. For example, the time domain resource information for the terminal device of the initial COT to send the information to be transmitted can be implemented through the bit domain, where one time slot in the COT corresponds to one bit, and the bit corresponding to the time slot is "1" to indicate the initial The terminal equipment of the COT sends the information to be transmitted in this time slot. The bit corresponding to the time slot is "0", indicating that the terminal equipment of the initial COT receives the information to be transmitted in this time slot. As shown in Figure 14, if multiple terminal devices include terminal device 1 to terminal device 4, terminal device 1 is the terminal device of the initial COT. In this case, the bit field of the resource indication information is "1000", and terminal device 1 to The resource indication information received by each terminal device 4 indicates the time slot in which the terminal device 1 sends the information to be transmitted.

It can be understood that in the embodiment of the present application, the starting time (relative to the COT) and the end time (relative to the COT) of sending the information to be transmitted can also be indicated to indicate the location where the information to be transmitted is sent. For example, if the terminal device 1 sends information to be transmitted on time slots m to time slot m+1, and time slots m+2 to time slot m+3, the COT structure may indicate that the location where the information to be transmitted is sent is time slot m. Between the starting position and the end position of time slot m+2, the time Between the start position of slot m+2 and the end position of time slot m+3.

In some possible designs, such as the following scenario seven or scenario eight, the time domain resource information can also be implemented in an explicit manner.

Scenario 7: The terminal device of the initial COT sends the time domain resources of the information to be transmitted in the order and receives the time domain resources of the information to be transmitted.

Scenario 8: The terminal equipment sharing the COT sends the time domain resources of the information to be transmitted in the order and receives the time domain resources of the information to be transmitted.

Take Scenario 7 as an example to illustrate the display implementation of time domain resource information. Exemplarily, the resource indication information indicates that the order of resources within the channel occupation time is: time domain resources for the terminal equipment of the initial COT to send information to be transmitted, time domain resources for the terminal equipment of the initial COT to receive information to be transmitted, and time domain resources for the terminal equipment of the initial COT to receive information to be transmitted. The terminal device that receives the time domain resources of the information to be transmitted and the initial COT sends the time domain resources of the information to be transmitted, thereby explicitly indicating the second order.

The above third sequence will be described below. The third sequence may be the transmission sequence when the resource indication information of multiple terminal devices is the same.

In this case, for each terminal device, different terminal devices among multiple terminal devices are relative to the resource indication information received by the terminal device. If the recipient of the resource indication information is a terminal device among multiple terminal devices, the recipient terminal device is a type of terminal device, and other terminal devices among the multiple terminal devices except the recipient terminal device are Another type of terminal device. For example, multiple terminal devices include terminal device 1 to terminal device 4. Regarding the resource indication information received by terminal device 2, terminal device 2 is a type of terminal device. Terminal device 1, terminal device 3 and terminal device 4 are all for another type of terminal device.

In some possible designs, such as the following scenarios 9 to 11, the time domain resource information can also be implemented in an implicit manner, for example, by indicating the time domain resources of different terminal devices, such as time slots.

Scenario 9: The receiving terminal device of the resource indication information of the third order is instructed to send the time domain resource of the information to be transmitted.

Scenario 10: Instruct the recipient terminal device of the third sequence of resource indication information to receive the time domain resource of the information to be transmitted.

Scenario 11: The receiving terminal device indicating the resource indication information of the third order sends the time domain resource of the information to be transmitted and receives the time domain resource of the information to be transmitted.

Taking scenario 9 as an example, the time domain resources for the terminal equipment of the initial COT to send the information to be transmitted can be implemented in the bit domain, where one time slot in the COT corresponds to one bit, and the bit corresponding to the time slot is "1". The terminal equipment of the initial COT sends the information to be transmitted in this time slot. The corresponding bit of the time slot is "0", indicating that the terminal equipment of the initial COT receives the information to be transmitted in this time slot (does not send the information to be transmitted). As shown in Figure 15, if multiple terminal devices include terminal device 1 to terminal device 4, terminal device 1 is the terminal device of the initial COT. The four bits of the COT structure in the resource indication information received by the terminal device 1 are "1000", then the time slot n is the time slot in which the terminal device 1 sends the information to be transmitted. The bit field in the resource indication information received by the terminal device 2 is "0100", then the time slot n+1 is the time slot in which the terminal device 2 sends the information to be transmitted. The bit field in the resource indication information received by the terminal device 3 is "0001", then the time slot n+3 is the time slot in which the terminal device 3 sends the information to be transmitted. The bit field in the resource indication information received by terminal equipment 4 is "0010", then time slot n+2 is the time slot n+2 for terminal equipment 4 to send the data to be transmitted. time slot for transmitting information.

In some possible designs, such as the following scenario 9, the time domain resource information can also be implemented in an explicit manner.

Scenario 12: The receiving terminal device indicating the third order of resource indication information sends the order of time domain resources of the information to be transmitted and the order of receiving the time domain resources of the information to be transmitted.

Regarding the specific implementation method of case 12, please refer to the implementation method of case 7 or case 8 mentioned above, and will not be described again here.

The above have respectively introduced different contents indicated by the resource indication information. The resource indication information will be further described below based on different situations.

In case 1, the resource indication information is used to indicate the channel occupation duration and channel acquisition information.

In case 2, the resource indication information is used to indicate the channel occupation duration, channel acquisition information, and time domain resource information within the channel occupation duration.

In this case, the time domain resource information within the channel occupation duration is used to indicate the frequency domain resources within the COT.

In case 3, the resource indication information is used to indicate the channel occupation duration and channel acquisition information, as well as the first order.

Case 3-1: The terminal device of the initial COT has information to be transmitted, and the resource indication information of multiple terminal devices is the same. In this case, the resource indication information can indicate the first order and the first order is as shown in Example 1. Channel Obtaining information can be achieved implicitly. For example, the terminal device of the initial COT may be related to the order in which the terminal device sends the information to be transmitted. For example, the terminal device of the initial COT is the terminal device with the highest transmission order.

For example, in the first sequence shown in Figure 12, the terminal device of the initial COT may be terminal device 1.

Case 3-2: The terminal device of the initial COT has information to be transmitted, and the resource indication information of multiple terminal devices is the same. In this case, the resource indication information indicates the first order and the first order is as shown in Example 1. Here In this case, channel acquisition information can be implemented explicitly. For example, the information of the terminal device of the initial COT, such as the identification information of the terminal device of the initial COT, may be carried through the bit field in the resource indication information.

Alternatively, the channel acquisition information can also be implemented in the form of a bitmap, where the bitmap includes multiple bits, and each bit corresponds to a terminal device. For example, if a terminal device is an initial COT terminal device, the corresponding bit of the terminal device in the bitmap is "1", otherwise the corresponding bit of the terminal device in the bitmap is "0" . For example, if multiple terminal devices include terminal device 1 to terminal device 4, the bitmap includes a total of 4 bits, in which the first bit is "1" and the remaining bits are "0". The picture shows "1000".

Case 3-3: The terminal device of the initial COT has information to be transmitted, and the resource indication information of multiple terminal devices is different. In this case, in this case, the resource indication information indicates the first order and the first order is as in the example. As shown in Figure 1, in this case, the channel acquisition information can be implemented in an explicit way. For example, one bit may be used in the resource indication information to indicate whether the terminal device that receives the resource indication information is the terminal device of the initial COT.

Case 3-4: There is no information to be transmitted in the terminal device of the initial COT, and the resource indication information of multiple terminal devices is the same. In this case, the resource indication information indicates the first order and the first order is as shown in Example 2. Channel acquisition Information can be implemented in an explicit manner as in case 3-2. Among them, the implementation principle of channel acquisition information can be referred to the relevant introduction in case 3-2, and will not be described again here.

Case 3-5: The terminal device of the initial COT does not have any information to be transmitted, and the resource indication information sent to multiple terminal devices is different. In this case, the resource indication information indicates the first order and the first order is as shown in Example 2. , channel acquisition information can be implemented in an explicit manner using bits.

For example, the terminal device that receives the resource indication information may be indicated by 1 bit. Taking the terminal device in Figure 4 as an example, terminal device 1 is the terminal device of the initial COT, and terminal device 2 to terminal device 4 are terminal devices of the shared COT. In the resource indication information received by terminal equipment 1, the bit corresponding to the channel acquisition information is "1". In the resource indication information received by any terminal equipment 2 to terminal equipment 3, the bit corresponding to the channel acquisition information is "0".

Optionally, the resource indication information in the above situations 3-1 to 3-5 can also be used to indicate: frequency domain resource information within the channel occupation duration; or, among multiple terminal devices, terminals used for sidelink transmission The time domain resource information and/or frequency domain resource information occupied by the device within the channel occupation period, for example, the time domain resources and/or frequency domain resources occupied by each terminal device used for sidelink transmission within the channel occupation period. For another example, in case 3-1 and case 3-2, the time-frequency resources and/or frequency domain resources occupied by the terminal equipment of the initial COT, or the time-frequency resources and/or frequency domain resources occupied by the terminal equipment sharing the COT.

In case 4, the resource indication information includes channel occupation duration, channel acquisition information, and the second order.

In this case, the channel acquisition information can be implemented explicitly through the bit field or bits. Regarding the implementation method of the channel acquisition information, please refer to the relevant introduction in the above situation 3-2 or 3-4, which will not be described again here.

Optionally, in case 4 above, the resource indication information can also be used to indicate: frequency domain resource information within the channel occupancy duration; or, time domain resource information and/or frequency domain resource information occupied by the terminal equipment of the initial COT within the channel occupancy duration. Domain resource information.

In case 5, the resource indication information includes channel occupation duration, channel acquisition information, and the third order.

In this case, the channel acquisition information can be implemented explicitly through bit fields or bits.

Regarding the implementation method of channel acquisition information, please refer to the relevant introduction in the above situation 3-2 or 3-4, and will not be described again here.

Optionally, in case 5 above, the resource indication information can also be used to indicate: frequency domain resource information within the channel occupancy duration; or, time domain resource information occupied by the terminal device that receives the resource indication information within the channel occupancy duration and /or frequency domain resource information.

In some possible design solutions, the resource indication information can also be used to indicate the listen-before-send type of the terminal device. In this way, the terminal device can perform channel monitoring and/or channel access according to the listen-before-serve type indicated by the resource indication information.

In some possible designs, in the above S901, the network device determines the resource indication information, which may include: the network device determines the resource indication information based on the BSR information of multiple terminal devices.

Among them, the BSR information may include one or more of the following: identification information of the terminal device that receives the information to be transmitted on the sidelink (sidelink), such as the destination ID; or, sends the information to be transmitted on the sidelink. The identification information of the terminal device, for example, it can be the source identity identification number ID; or the link information of the transmission information, such as the pair identification information for receiving the information to be transmitted and sending the information to be transmitted. The pair identification information can be Pair ID (pair ID) (when sending information to be transmitted in unicast mode between terminal devices of SL); or group information (when sending information to be transmitted in multicast mode between terminal devices of SL) ), for example: group identification information, where the group identification information may be a group identification number (group ID); or quality of service (QoS) information, where the quality of service information includes remaining (remaining) packet time Delay budget (packet delay budget, PDB) or priority information, etc.

S1102: The network device sends resource indication information to multiple terminal devices, and each terminal device in the multiple terminal devices receives the resource indication information.

The plurality of terminal devices may include a first terminal device and a second terminal device.

The resource indication information may be carried in control information or higher layer signaling. Control information is used to indicate downlink transmission or sidelink transmission. High-level signaling can be radio resource control signaling, media access control (MAC) unit (control element, CE) signaling, direct communication PC5 radio resource control signaling or PC5MAC CE signaling, control information It can be downlink control information or sidelink control information.

When the control information is downlink control information DCI, the DCI may be an existing DCI format (format) or a new DCI format, such as DCI format 3_2. If the DCI is a DCI in an existing format, such as DCI format 3_0 or DCI format 3_1, in this case the resource indication information can be carried in the existing field of the DCI, or the resource indication information can be carried in the new field of the DCI in the field.

For example, the network device may send resource indication information to multiple terminal devices in a broadcast manner, or the network device may send resource indication information to multiple terminal devices in a multicast manner, or the network device may send resource indication information to multiple terminal devices in a unicast manner. Each terminal device among the plurality of terminal devices sends resource indication information.

Among them, for situations 1 to 3-4, as well as situations 4 and 5 in the above S1101, the network device can send resources to each terminal device among multiple terminal devices in any one of broadcast, multicast or unicast modes. Instructions. For the above situation 3-5 in S1101, the network device sends the resource indication information to each of the plurality of terminal devices in a unicast manner.

Optionally, the DCI carrying the resource indication information can be scrambled using a radio network temporary identity (RNTI). For example, if the resource indication information is carried in DCI, and the resource indication information is sent in a multicast manner, in this case, the DCI can be scrambled by a wireless network temporary identifier, and the wireless network temporary identifier is the same as the received resource indication. The information is related to the identification information of the group to which the terminal device belongs. If the resource indication letter is carried in the downlink control information, and the resource indication information is sent in a unicast manner, in this case, optionally, the DCI can be scrambled by a wireless network temporary identifier, and the wireless network temporary identifier is the same as the received wireless network temporary identifier. The resource indication information is related to the pairing identifier corresponding to the terminal device.

S1103. The first terminal device sends sharing indication information to the second terminal device according to the resource indication information.

Wherein, the first terminal device is a terminal device among the plurality of terminal devices, and the second terminal device is a terminal device among the plurality of terminal devices except the first terminal device. The sharing indication information is used to indicate the COT of the channel that the first terminal device successfully initially shared.

In this embodiment of the present application, the sharing indication information can be carried in the information to be transmitted by the first terminal device. In this way, signaling overhead can be saved.

Alternatively, the sharing indication information can be carried in control signaling, such as sidelink control information (SCI). In this way, COT sharing can still be achieved when the first terminal device does not have information to be transmitted. , thereby improving reliability.

S1104. The second terminal device sends the information to be transmitted according to the resource indication information and the sharing indication information.

Based on the resource indication method shown in Figure 11, a terminal device among multiple terminal devices can determine whether it is a terminal device that occupies the initial channel occupancy time based on the resource indication information, thereby avoiding the need for a terminal device among multiple terminal devices other than the terminal device that occupies the initial channel occupancy time. Initial channel of terminal equipment outside of the network, thereby improving communication reliability. For example, when the second terminal device determines the COT of the channel that the first terminal device successfully initially shares based on the sharing indication information, it performs type 2A, type 2B, or type 2C LBT, and monitors that the channel is in an idle state. Next, send the information to be transmitted. Wherein, if the time-frequency resource configuration information includes the time domain resources of each terminal device, each terminal device sends the information to be transmitted on the corresponding time domain resource, and/or, if the time-frequency resource includes the time domain resources of each terminal device, Frequency domain resources, each terminal device sends the information to be transmitted on its corresponding time domain resource.

It should be noted that the method shown in Figure 11 may also include: S1100a to S1100c.

S1100a: Multiple terminal devices send respective SRs to the network device, and the network device receives SRs from multiple terminal devices.

S1100b: The network device sends DCI to multiple terminal devices respectively, where the DCI is used to indicate uplink resources for each of the multiple terminal devices to send BSR information.

S1100c: Multiple terminal devices send respective BSR information to the network device, and the network device receives BSR information from each terminal device among the multiple terminal devices.

In this case, in the above S1101, the network device determines the resource indication information. The network device may determine the resource indication information based on the status of the information to be transmitted by multiple terminal devices, such as the size of the information to be transmitted, the sending time, etc.

In other possible embodiments, the network device may send resource indication information to a first terminal device among multiple terminal devices, and the first terminal device initializes the COT of the channel shared by the multiple terminal devices, and shares the COT with the second terminal device. Terminal Equipment. This will be further described below with reference to Figure 16 .

S1601. The network device determines the resource indication information.

Regarding the implementation principle of S1601, please refer to the above-mentioned introduction of S1101 and will not be repeated here.

S1602: The network device sends resource indication information, and the first terminal device obtains the resource indication information.

It can be understood that the terminal device may carry reception indication information in the BSR information of S1600c, which is used to indicate whether the terminal device can receive the resource indication information on the sidelink. The network device can carry reception indication information in the DCI of the above-mentioned S1600b to indicate whether the terminal device needs to monitor the physical downlink control channel (PDCCH) to obtain resource indication information.

Alternatively, the network device can configure the terminal device to receive indication information through RRC signaling.

Alternatively, the terminal device may report the status of receiving resource indication information on the downlink as the capability of the terminal device to the network device in advance.

The implementation principle of S1602 is similar to the principle of resource indication information sent in unicast mode in S1102. For the implementation principle of S1602, please refer to the relevant introduction of S1102 above, and will not be described again here.

S1603: The first terminal device sends sharing indication information to the second terminal device according to the resource indication information, and the second terminal device receives the sharing indication information.

The sharing indication information may indicate the COT of the channel successfully initially shared by the first terminal device, and the sharing indication information may at least be used to indicate the channel occupancy duration of the channel shared by multiple terminal devices.

The sharing indication information may indicate a channel occupancy time of a channel shared by multiple terminal devices, and information about a terminal device that is allowed to initiate the channel occupancy time of the shared channel.

When the resource indication information is also used to indicate frequency domain resource information within the channel occupation period, the sharing indication information may also be used to indicate frequency domain resource information within the channel occupation period.

When the resource indication information is also used to indicate: among multiple terminal devices, the time domain resource information and/or frequency domain resource information occupied by different types of terminal devices within the channel occupation duration, the sharing indication information can also be used to indicate multiple terminal devices. Among the terminal devices, the time domain resource information and/or the frequency domain resource information occupied by different types of terminal devices within the channel occupation duration.

In the case where the resource indication information is also used to indicate the transmission sequence within the channel occupancy period of the terminal equipment used for sidelink transmission among the multiple terminal equipments, the sharing indication information can also be used to indicate the transmission order among the multiple terminal equipments. At The transmission sequence of the terminal equipment performing sidelink transmission within the channel occupation period.

In the case where the resource indication information is also used to indicate that within the channel occupation duration, the terminal device receiving the resource indication information sends the information to be transmitted and/or receives the time domain resource information of the information to be transmitted, the sharing indication information is also It may be used to instruct the terminal device that receives the resource indication information to send the information to be transmitted and/or to receive the time domain resource information of the information to be transmitted within the channel occupation duration.

Sharing indication information can be carried in the first-level SCI, second-level SCI, MAC CE or sidelink shared channel (SL-SCH). In the case of the first order of resource indication information, the identification information and/or resource allocation information of the X second terminal devices in the first transmission order are carried in the first-level SCI. In this way, the decoding process of the second terminal device that transmits the first X can be simplified, ensuring the processing time of the second terminal device, thereby further improving communication efficiency and reliability. Among them, X is a positive integer greater than or equal to 1.

In some embodiments, in order to determine the processing time of the second terminal device to improve communication efficiency and reliability, the first terminal device may continuously send multiple PSSCHs carrying different information (for example, carrying different parts of the information to be sent), That is to say, the first terminal device continuously sends multiple different transport blocks (transport blocks, TB).

Alternatively, the first terminal equipment continuously and repeatedly sends the same PSSCH and/or PSCCH multiple times in the time domain. That is to say, the first terminal equipment continuously sends the PSSCH and/or PSCCH multiple times in the time domain, and the PSSCH carries multiple times. The information is the same. For example, the information carried by multiple PSSCHs is the same TB. Send TB repeatedly and continuously. Among them, the PSSCH is the first PSSCH sent after the first terminal device successfully accesses the channel, and the PSCCH is the PSCCH associated with the PSSCH, that is, the resources of the PSSCH are indicated by the control information carried by the PSCCH.

Alternatively, the first terminal device sends the PSSCH on resources of multiple time slots. That is to say, the first terminal device sends the sharing indication information in a multi-slot joint transmission (TB over multi-slots, TBoMS) manner.

S1604. The second terminal device sends the information to be transmitted according to the sharing instruction information.

For the implementation principle of S1604, please refer to the relevant introduction in S1104, and will not be repeated here.

In addition, based on the resource indication method shown in Figure 16, resource indication information can be carried through one signaling, thereby reducing signaling overhead.

It can be understood that in the resource indication method shown in Figure 11 or Figure 16, the functions of the network device can also be implemented by a third terminal device. The third terminal device can be a device among the above-mentioned multiple terminal devices or one of the above-mentioned multiple terminal devices. other terminal equipment. Among them, the difference between Figure 16 and Figure 11 includes that the high-level signaling in S1102 mentioned above can be PC5RRC signaling or PC5MAC CE signaling, and the control information is SCI. For the principle of the third terminal device implementing the resource indication method shown in Figure 11, reference can be made to the relevant introduction of the method embodiment shown in Figure 11, which will not be described again here.

It can be understood that in this embodiment of the present application, before S1601, the resource indication method shown in Figure 16 may also include S1600a to S1600c.

S1600a: Multiple terminal devices send respective SRs to the network device, and the network device receives SRs from multiple terminal devices.

For the specific implementation principle of S1600a, please refer to the relevant introduction in S1100a mentioned above, and will not be repeated here.

S1600b: The network device sends DCI to multiple terminal devices respectively, where the DCI is used to indicate uplink resources for each of the multiple terminal devices to send BSR information.

For the specific implementation principle of S1600b, please refer to the relevant introduction in S1100b mentioned above, and will not be repeated here.

S1600c: Multiple terminal devices send their own BSR information to the network device, and the network device receives the BSR information from each of the multiple terminal devices.

For the specific implementation principles of S1600c, please refer to the relevant introduction in S1100c mentioned above, and will not be repeated here.

In addition, in a possible embodiment, as shown in Figure 17, the first terminal device can determine the resource indication information by itself. In this case, the above resource indication method also includes:

S1701. The first terminal device determines resource indication information.

The implementation principle of the first terminal device determining the resource indication information by itself is similar to the implementation principle of the network device determining the resource indication information. Refer to the above S1101 or the above S1601, and will not be described again here.

S1702: The first terminal device sends sharing indication information to the second terminal device according to the resource indication information, and the second terminal device receives the sharing indication information.

For the implementation principle of S1702, please refer to the relevant introduction in S1103 or S1603, and will not be described again here.

S1703. The second terminal device sends the information to be transmitted according to the sharing instruction information.

For the implementation principle of S1703, please refer to the relevant introduction in S1104 or S1604, and will not be described again here.

In some possible embodiments, in the above resource indication method, if the communication system includes a first terminal device and a network device, and the first terminal device does not share a channel, the initial multiple terminals of the terminal device can still be determined through a third-party device. The channel occupancy time of the channel shared by the device. As shown in Figure 18, in this case, the resource indication method includes:

S1801. The network device determines the resource indication information.

The resource indication information is used to indicate the following: a channel occupancy time of a channel shared by multiple terminal devices, and information about a terminal device that is allowed to initialize the channel occupancy time of the shared channel.

It is understandable that in this case, the implementation principle of S1801 can refer to the relevant introduction of S1101 and S1601 mentioned above, and will not be described again here.

S1802: The network device sends resource indication information, and the first terminal device receives the resource indication information.

It is understandable that in this case, the implementation principle of S1802 can refer to the relevant introduction of S1102 and S1602 mentioned above, and will not be described again here.

S1803. The first terminal device sends information to be transmitted according to the resource indication information.

It can be understood that in this case, the implementation principle of S1803 can refer to the relevant introduction of S1104, S1604, or S1703 above, and will not be described again here.

Exemplarily, after the first terminal device obtains the resource indication information, it performs Type 1 LBT. When it detects that the channel is idle, it determines the channel occupancy time based on the channel occupancy time of the channel shared by multiple terminal devices, and determines the channel occupancy time. The information to be transmitted is sent during the occupied time of the channel.

In a possible design solution, the terminal device information of the initial channel occupancy time may include: information about whether the terminal device receiving the resource indication information is the terminal device of the initial channel occupancy time.

In this way, the third-party device can determine the channel occupancy time for the first terminal device. In the case where the first terminal device is the terminal device with the initial channel occupancy time indicated by the terminal device information of the initial channel occupancy time, the third-party device determines the channel occupancy time based on the initial channel occupancy time. The channel occupancy time of a channel shared by multiple terminal devices is the initial channel occupancy time. In this way, the calculation amount of the terminal device can be reduced and the overhead can be reduced.

Exemplarily, FIG. 19 is a schematic structural diagram of a communication device 1900 provided by an embodiment of the present application. As shown in Figure 19, the communication device 1900 includes a processing module 1901 and a transceiver module 1902. For convenience of explanation, FIG. 19 shows only the main components of the communication device.

In some embodiments, the communication device 1900 may be adapted to the communication system shown in FIG. 4 to perform the functions of the network device in the resource indication method shown in any one of FIG. 9, FIG. 11, and FIG. 16.

Among them, the processing module 1901 is used to determine resource indication information.

The resource indication information is used to indicate: a channel occupancy time of a channel shared by multiple terminal devices, and information about a terminal device that is allowed to initialize the channel occupancy time of the shared channel.

The sending module is used to send resource indication information.

In addition, the resource indication information may be carried in higher layer signaling or control information. Control information is used to indicate downlink transmission or sidelink transmission. The high-level signaling can be radio resource control signaling, media access control control unit signaling, PC-5 radio resource control signaling or PC-5 media access control control unit signaling. The control information can be downlink control information or side Link control information.

It should be noted that the sending module can send the resource indication information in a broadcast manner, a multicast manner, or a unicast manner.

In this case, the sending module may use broadcast, multicast, or unicast to send the resource indication information. For example, in order to reduce the cost of sending resource indication information, the resource indication information may be sent in a broadcast or multicast manner.

Optionally, the transmission order of the terminal devices used for side-link transmission among multiple terminal devices within the channel occupation time may be related to one or more of the following: the priority of the information to be transmitted by the terminal device, the information to be transmitted by the terminal device The remaining packet delay budget, or the number of transmission blocks of information to be transmitted by the terminal device.

Optionally, the transceiver module 1902 may include a receiving module and a sending module (not shown in Figure 19). Among them, the transceiver module 1902 is used to implement the transceiver function of the communication device 1900.

Optionally, the communication device 1900 may also include a storage module (not shown in Figure 19) that stores There are procedures or instructions. When the processing module 1901 executes the program or instruction, the communication device 1900 can execute the resource indication method shown in any one of FIG. 9, FIG. 11, and FIG. 16.

It should be understood that the processing module 1901 involved in the communication device 1900 can be implemented by a processor or a processor-related circuit component, and can be a processor or a processing unit; the transceiver module 1902 can be implemented by a transceiver or a transceiver-related circuit component, and can be a transceiver. transmitter or transceiver unit.

It should be noted that the communication device 1900 may be a terminal device or a network device, a chip (system) or other components or components that can be disposed in a terminal device or a network device, or a device including a terminal device or a network device. , this application does not limit this.

In addition, the technical effects of the communication device 1900 can be referred to the technical effects of the resource indication method shown in any one of FIG. 9, FIG. 11, and FIG. 16, which will not be described again here.

In other embodiments, the communication device 1900 may be applicable to a communication system including a first terminal device (such as the terminal device 1 in Figure 4 above) and a network device. The communication device 1900 includes: a processing module 1901 and a sending module.

Among them, the processing module 1901 is used to determine resource indication information. The resource indication information is used to indicate: a channel occupancy time of a channel shared by multiple terminal devices, and information about a terminal device that is allowed to initialize the channel occupancy time of the shared channel. The sending module is used to send resource indication information.

In a possible design solution, the resource indication information can also be used to indicate: frequency domain resources within the channel occupation duration.

Optionally, the transceiver module 1902 may include a receiving module and a sending module (not shown in Figure 19). Among them, the transceiver module 1902 is used to implement the sending function and receiving function of the communication device 1900.

Optionally, the communication device 1900 may also include a storage module (not shown in FIG. 19), which stores programs or instructions. When the processing module 1901 executes the program or instruction, the communication device 1900 can perform the functions of the network device in the resource indication method shown in FIG. 18 .

In addition, the technical effects of the communication device 1900 can be referred to the technical effects of the resource indication method shown in Figure 18, which will not be described again here.

For example, FIG. 20 is a schematic structural diagram of the first terminal device 2000 provided by the embodiment of the present application. As shown in Figure 20, the first terminal device 2000 includes: a receiving module 2002 and a sending module 2001.

Among them, the receiving module 2002 is used to receive resource indication information.

The first terminal device 2000 is one of multiple terminal devices, and the resource indication information is used to indicate: the channel occupancy time of a channel shared by multiple terminal devices, and the terminal device that is allowed to initialize the channel occupancy time of the shared channel. Information.

The sending module 2001 is configured to send sharing indication information according to the resource indication information.

The sharing indication information is used to indicate that the first terminal device 2000 successfully initializes the channel occupancy time of a channel shared by multiple terminal devices.

Optionally, a terminal device other than the first terminal device 2000 among the plurality of terminal devices is a second terminal device. Among the second terminal devices of multiple terminal devices, the identification information and/or resource allocation information of the X terminal devices in the first transmission order may be carried in the first-level sideline control information, where X is a positive integer greater than or equal to 1.

Or, optionally, when the first terminal device 2000 sends sharing indication information according to the resource indication information, the first terminal device 2000 may continuously send multiple physical sidelink shared channels, and the multiple physical sidelink shared channels carry different information.

Or, optionally, when the first terminal device 2000 sends the sharing indication information according to the resource indication information, the first terminal device 2000 continuously sends the same physical sidelink shared channel and/or physical sidelink control channel multiple times in the time domain, In this case, the physical sidelink shared channel is the first physical sidelink shared channel sent by the first terminal device 2000 after successfully accessing the channel, and the physical sidelink control channel is the physical sidelink associated with the physical sidelink shared channel. The control channel, that is, the resources of the physical sidelink shared channel are indicated by the control information carried by the physical sidelink control channel.

Or, optionally, when the first terminal device 2000 sends the sharing indication information according to the resource indication information, the first terminal device 2000 sends the physical sidelink shared channel on resources of multiple time slots.

Optionally, the sending module 2001 and the receiving module 2002 can also be integrated into one module, such as a transceiving module (not shown in Figure 20). The transceiver module is used to implement the sending function and receiving function of the communication device.

Optionally, the first terminal device 2000 may also include a processing module (not shown in Figure 20). The processing module is used to implement the processing function of the first terminal device 2000.

Optionally, the first terminal device 2000 may also include a storage module that stores programs or instructions. When the processing module executes the program or instruction, the first terminal device 2000 can perform the functions of the first terminal device in the resource indication method shown in any one of Figure 10, Figure 11, or Figure 16.

It should be understood that the processing module 2001 involved in the first terminal device 2000 can be implemented by a processor or a processor-related circuit component, and can be a processor or a processing unit; the transceiver module can be implemented by a transceiver or a transceiver-related circuit component. Now, it can be a transceiver or a transceiver unit.

It should be noted that the first terminal device 2000 may be a terminal device, a chip (system) or other components or components that can be installed in the terminal device, or a device including the terminal device, which is not covered in this application. limited.

In addition, the technical effects of the first terminal device 2000 can be referred to the technical effects of the resource indication method shown in any one of FIG. 10, FIG. 11, or FIG. 16, which will not be described again here.

In other embodiments, the first terminal device 2000 may be adapted to a communication system including the first terminal device 2000 and a network device to perform the functions of the first terminal device 2000 shown in FIG. 18 .

The sending module 2001 is used to send information to be transmitted according to the resource indication information.

Optionally, the sending module 2001 and the receiving module 2002 can also be integrated into one module, such as a transceiving module. The transceiver module is used to implement the sending function and receiving function of the first terminal device 2000.

Optionally, the first terminal device 2000 may also include a processing module. The processing module is used to implement the processing function of the first terminal device 2000.

Optionally, the first terminal device 2000 may also include a storage module that stores programs or instructions. When the processing module executes the program or instruction, the first terminal device 2000 can execute the resource indication method shown in FIG. 18 .

It should be understood that the processing module 2001 involved in the first terminal device 2000 can be implemented by a processor or a processor-related circuit component, and can be a processor or a processing unit; the transceiver module can be implemented by a transceiver or a transceiver-related circuit component, and can be a transceiver. transmitter or transceiver unit.

In addition, the technical effects of the first terminal device 2000 can be referred to the technical effects of the resource indication method shown in Figure 18, which will not be described again here.

Exemplarily, FIG. 21 is a schematic structural diagram of a second terminal device provided by an embodiment of the present application. As shown in Figure 21, the second terminal device includes: a receiving module 2102 and a sending module 2101.

Among them, the receiving module 2102 is used to receive sharing indication information from the first terminal device. The first terminal device is one of the plurality of terminal devices, and the second terminal device 2100 is a terminal device among the plurality of terminal devices except the first terminal device. The sharing indication information is used to indicate that the first terminal device successfully initializes the channel occupancy time of the channel shared by multiple terminal devices. The channel occupancy time is shared by multiple terminal devices.

The sending module 2101 is used to send information to be transmitted according to the sharing instruction information.

Optionally, the sending module 2101 is specifically configured to send the information to be transmitted according to the sharing indication information and the resource indication information. The resource indication information may be used to indicate: a channel occupancy time of a channel shared by multiple terminal devices, and information about a terminal device that is allowed to initialize the channel occupancy time of the shared channel.

Further, in the second terminal device 2100, the identification information and/or resource allocation information of the X terminal devices with the highest transmission order are carried in the first-level sideline control information, and X is a positive integer greater than or equal to 1.

Exemplarily, the transmission order of the second terminal device 2100 is related to one or more of the following: the priority of the information to be transmitted by the terminal device, the remaining packet delay budget of the information to be transmitted by the terminal device, or the transmission of the information to be transmitted by the terminal device. Number of blocks.

Optionally, the sending module 2101 and the receiving module 2102 can also be integrated into one module, such as a transceiving module. The transceiver module is used to implement the sending function and receiving function of the second terminal device 2100.

Optionally, the second terminal device 2100 may also include a processing module. The processing module is used to implement the processing function of the second terminal device 2100 .

Optionally, the second terminal device 2100 may also include a storage module that stores programs or instructions. When the processing module executes the program or instruction, the second terminal device 2100 can perform the functions of the second terminal device 2100 in the resource indication method shown in any one of Figure 10, Figure 11, or Figure 16.

It should be understood that the processing module 2101 involved in the second terminal device 2100 can be implemented by a processor or a processor-related circuit component, and can be a processor or a processing unit; the transceiver module can be implemented by a transceiver or a transceiver-related circuit component, and can be a transceiver. transmitter or transceiver unit.

It should be noted that the second terminal device 2100 may be a terminal device, a chip (system) or other components or components that can be disposed in the terminal device, or a device including the terminal device, which is not covered in this application. limited.

In addition, the technical effects of the second terminal device 2100 can be referred to the technical effects of the resource indication method shown in any one of FIG. 10, FIG. 11, or FIG. 16, which will not be described again here.

Exemplarily, FIG. 22 is a schematic structural diagram of a communication device provided by an embodiment of the present application. The communication device may be a terminal device or a network device, or may be a chip (system) or other component or component that can be disposed on the terminal device or the network device. As shown in FIG. 22, the communication device 2200 may include a processor 2201. Optionally, the communication device 2200 may also include a memory 2202 and/or a transceiver 2203. The processor 2201 is coupled to the memory 2202 and the transceiver 2203, for example, through a communication bus.

The following is a detailed introduction to each component of the communication device 2200 with reference to Figure 22:

Among them, the processor 2201 is the control center of the communication device 2200, and may be a processor or a collective name for multiple processing elements. For example, the processor 2201 is one or more central processing units (CPUs), may also be an application specific integrated circuit (ASIC), or may be configured to implement one or more embodiments of the present application. an integrated circuit, such as one or more digital signals A processor (digital signal processor, DSP), or one or more field programmable gate arrays (field programmable gate array, FPGA).

Alternatively, the processor 2201 can perform various functions of the communication device 2200 by running or executing software programs stored in the memory 2202 and calling data stored in the memory 2202.

In a specific implementation, as an embodiment, the processor 2201 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 22 .

In specific implementation, as an embodiment, the communication device 2200 may also include multiple processors, such as the processor 2201 and the processor 2204 shown in FIG. 22 . Each of these processors can be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). A processor here may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).

The memory 2202 is used to store the software program for executing the solution of the present application, and the processor 2201 controls the execution. For specific implementation methods, please refer to the above method embodiments, which will not be described again here.

Optionally, the memory 2202 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory (RAM)) or a random access memory (RAM) that can store information and instructions. Other types of dynamic storage devices for instructions can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical discs Storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and any other media capable of being accessed by a computer, without limitation. The memory 2202 may be integrated with the processor 2201, or may exist independently and be coupled to the processor 2201 through the interface circuit (not shown in Figure 22) of the communication device 2200. This is not specifically limited in the embodiment of the present application.

Transceiver 2203, used for communication with other communication devices. For example, the communication device 2200 is a terminal device, and the transceiver 2203 can be used to communicate with a network device or with another terminal device. For another example, the communication device 2200 is a network device, and the transceiver 2203 can be used to communicate with a terminal device or another network device.

Optionally, the transceiver 2203 may include a receiver and a transmitter (not shown separately in Figure 22). Among them, the receiver is used to implement the receiving function, and the transmitter is used to implement the sending function.

Alternatively, the transceiver 2203 can be integrated with the processor 2201, or can exist independently and be coupled to the processor 2201 through the interface circuit (not shown in Figure 22) of the communication device 2200. This is not the case in the embodiment of this application. Specific limitations.

It should be noted that the structure of the communication device 2200 shown in Figure 22 does not constitute a limitation on the communication device. The actual communication device may include more or less components than shown in the figure, or some components may be combined, or Different component arrangements.

In addition, the technical effects of the communication device 2200 can be referred to the technical effects of the communication method described in the above method embodiments, which will not be described again here.

It should be understood that the processor in the embodiment of the present application can be a central processing unit (CPU), and the processor can also be other general-purpose processors, digital signal processors (DSP), special-purpose integrated processors, etc. circuit (application specific integrated circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

It should also be understood that the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Among them, non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically removable memory. Erase electrically programmable read-only memory (EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (RAM), which is used as an external cache. By way of illustration, but not limitation, many forms of random access memory (RAM) are available, such as static random access memory (static RAM (SRAM)), dynamic random access memory (DRAM), synchronous dynamic random access memory (RAM) 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 access memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM).

The above embodiments may be implemented in whole or in part by software, hardware (such as circuits), firmware, or any other combination. When implemented using software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmit to another website, computer, server or data center through wired (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can access, or a data storage device such as a server or a data center that contains one or more sets of available media. The usable media may be magnetic media (eg, floppy disk, hard disk, tape), optical media (eg, DVD), or semiconductor media. The semiconductor medium may be a solid state drive.

It should be understood that the term "and/or" in this article is only an association relationship describing related objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, and A and B exist simultaneously. , there are three cases of B alone, where A and B can be singular or plural. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship, but it may also indicate an "and/or" relationship. For details, please refer to the previous and later contexts for understanding.

In this application, "at least one" refers to one or more, and "plurality" refers to two or more. "At least one of the following" or similar expressions thereof refers to any combination of these items, including any combination of a single item (items) or a plurality of items (items). For example, at least one of a, b, or c can mean: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple .

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

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. These functions Whether it is implemented in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can 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. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is 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. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program code. .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A resource indication method, characterized in that the method includes:

Determine the resource indication information; wherein the resource indication information is used to indicate: the channel occupancy time of the channel shared by multiple terminal devices, and the information of the terminal device that is allowed to initialize the channel occupancy time of the shared channel;

Send the resource indication information.
The method according to claim 1, characterized in that said sending the resource indication information includes:

Send the resource indication information to the plurality of terminal devices.
The method according to claim 1, characterized in that said sending the resource indication information includes:

Send the resource indication information to a first terminal device among the plurality of terminal devices.
The method according to any one of claims 1 to 3, characterized in that the resource indication information is also used to indicate: frequency domain resource information within the channel occupation duration;

Or, among the plurality of terminal devices, time domain resource information and/or frequency domain resource information occupied by different types of terminal devices within the channel occupation duration.
The method according to any one of claims 1-3, characterized in that the resource indication information is also used to indicate:

The transmission sequence of the terminal devices used for sidelink transmission among the plurality of terminal devices within the channel occupation duration; or,

Within the channel occupation duration, the terminal device that receives the resource indication information sends the information to be transmitted and/or receives the time domain resource information of the information to be transmitted.
The method according to claim 5, characterized in that, among the plurality of terminal devices, the transmission order of the terminal devices used for sideline transmission within the channel occupation duration is related to one or more of the following: the terminal The priority of the information to be transmitted by the device, the remaining packet delay budget of the information to be transmitted by the terminal device, or the number of transmission blocks of the information to be transmitted by the terminal device.
A resource indication method, characterized in that the method includes:

The first terminal device obtains resource indication information; wherein the first terminal device is one of multiple terminal devices, and the resource indication information is used to indicate: the channel occupancy duration of the shared channel of multiple terminal devices, and the allowed Information about the terminal device that initializes the channel occupancy time of the shared channel;

The first terminal device sends sharing indication information according to the resource indication information; the sharing indication information is used to indicate that the first terminal device successfully initializes the channel occupancy time of the channel shared by the multiple terminal devices.
The method according to claim 7, characterized in that the resource indication information is also used to indicate: frequency domain resource information within the channel occupation duration; or,

Among the plurality of terminal devices, the time domain resource information and/or the frequency domain resource information occupied by different terminal devices respectively within the channel occupation duration.
The method according to claim 7, characterized in that the resource indication information is also used to indicate: the transmission sequence of the terminal devices used for sidelink transmission among the plurality of terminal devices within the channel occupation duration;

Alternatively, within the channel occupation period, the terminal device that receives the resource indication information sends a signal to be transmitted. information and/or receive time domain resource information of information to be transmitted.
The method according to any one of claims 8-9, characterized in that the sharing indication information is used to indicate at least a channel occupancy duration of a channel shared by the plurality of terminal devices.
The method according to claim 10, characterized in that the resource indication information is also used to indicate: the transmission sequence of the terminal devices used for sidelink transmission among the plurality of terminal devices within the channel occupation duration.
The method according to claim 11, characterized in that, among the plurality of terminal devices, the terminal device other than the first terminal device is a second terminal device; among the second terminal devices, the transmission order is higher The identification information and/or resource allocation information of X terminal devices are carried in the first-level sideline control information, and X is a positive integer greater than or equal to 1.
The method according to claim 9, characterized in that the transmission order of the terminal devices used for side transmission among the plurality of terminal devices is related to one or more of the following: the priority of the information to be transmitted by the terminal device , the remaining packet delay budget of the information to be transmitted by the terminal device, or the number of transmission blocks of the information to be transmitted by the terminal device.
A resource indication method, characterized in that the method includes:

The second terminal device receives the sharing instruction information from the first terminal device; wherein the first terminal device is one of a plurality of terminal devices, and the second terminal device is one of the plurality of terminal devices, except for the A terminal device other than the first terminal device; the sharing indication information is used to indicate that the first terminal device successfully initializes the channel occupancy time of the channel shared by the multiple terminal devices;

The second terminal device sends information to be transmitted according to the sharing indication information.
The method according to claim 14, characterized in that the second terminal device sends information to be transmitted according to the sharing indication information, including:

The second terminal device sends the information to be transmitted according to the sharing indication information and resource indication information; wherein the resource indication information is used to indicate the channel occupancy duration of the channel shared by multiple terminal devices, and allows the initial Shared channel information about the channel occupation time of the terminal device.
The method of claim 15, further comprising:

The second terminal device receives the resource indication information.
The method according to claim 15 or 16, characterized in that the resource indication information is also used to indicate: frequency domain resource information within the channel occupation duration; or,

Among the plurality of terminal devices, the time domain resource information and/or the frequency domain resource information occupied by different terminal devices respectively within the channel occupation duration.
The method according to claim 15 or 16, characterized in that the resource indication information is also used to indicate: among the plurality of terminal devices, the terminal device used for sidelink transmission transmits within the channel occupation duration. order; or,

Within the channel occupation duration, the terminal device that receives the resource indication information sends the information to be transmitted and/or receives the time domain resource information of the information to be transmitted.
The method according to claim 14, wherein the sharing indication information is also used to indicate at least: a channel occupancy duration of a channel shared by multiple terminal devices.
The method according to claim 19, characterized in that the sharing indication information is also used to indicate: The transmission sequence of the terminal devices used for sidelink transmission among the plurality of terminal devices within the channel occupation duration.
The method according to claim 20, characterized in that, among the second terminal devices, the identification information and/or resource allocation information of the X terminal devices with the highest transmission order are carried in the first-level sideline control information, X is a positive integer greater than or equal to 1.
The method according to claim 21, characterized in that the transmission order of the second terminal device is related to one or more of the following: the priority of the information to be transmitted by the terminal device, the priority of the information to be transmitted by the terminal device. The remaining packet delay budget, or the number of transmission blocks of information to be transmitted by the terminal device.
A communication device, characterized in that the communication device is configured to perform the resource indication method according to any one of claims 1-6.
A first terminal device, characterized in that the first terminal device is configured to perform the resource indication method according to any one of claims 7-13.
A second terminal device, characterized in that the first terminal device is configured to perform the resource indication method according to any one of claims 14-22.
A communication device, characterized by comprising: a processor, the processor being coupled to a memory;

The processor is configured to execute a computer program stored in the memory, so that the communication device performs the method as described in any one of claims 1-6, or as described in any one of claims 7-13 The method, or the method according to any one of claims 14-22.
A communication device, characterized by including: a processor and an interface circuit; wherein,

The interface circuit is used to receive code instructions and transmit them to the processor;

The processor is configured to run the code instructions to perform the method as claimed in any one of claims 1-6, or the method as claimed in any one of claims 7-13, or as claimed in claims 14-22 any one of the methods.
A communication device, characterized in that the communication device includes a processor and a transceiver, the transceiver is used for information exchange between the communication device and other communication devices, and the processor executes program instructions to execute The method according to any one of claims 1-6, or the method according to any one of claims 7-13, or the method according to any one of claims 14-22.
A computer-readable storage medium, characterized in that the computer-readable storage medium includes a computer program or instructions, which when the computer program or instructions are run on a computer, cause the computer to execute the instructions in claims 1-6 The method according to any one of claims 7-13, or the method according to any one of claims 14-22.