WO2021089020A1 - 一种侧行链路信道状态信息报告的发送方法、装置及系统 - Google Patents

一种侧行链路信道状态信息报告的发送方法、装置及系统 Download PDF

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Publication number
WO2021089020A1
WO2021089020A1 PCT/CN2020/127297 CN2020127297W WO2021089020A1 WO 2021089020 A1 WO2021089020 A1 WO 2021089020A1 CN 2020127297 W CN2020127297 W CN 2020127297W WO 2021089020 A1 WO2021089020 A1 WO 2021089020A1
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WIPO (PCT)
Prior art keywords
terminal
side link
csi report
resource
configuration
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PCT/CN2020/127297
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English (en)
French (fr)
Inventor
徐海博
王君
魏冬冬
王键
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to KR1020227015514A priority Critical patent/KR20220079638A/ko
Priority to JP2022526277A priority patent/JP7416933B2/ja
Priority to US17/755,428 priority patent/US20220369346A1/en
Priority to CN202080049987.XA priority patent/CN114073120A/zh
Priority to EP24154367.7A priority patent/EP4387387A3/en
Priority to EP20883867.2A priority patent/EP4057681B1/en
Publication of WO2021089020A1 publication Critical patent/WO2021089020A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1858—Transmission or retransmission of more than one copy of acknowledgement message
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/543—Allocation or scheduling criteria for wireless resources based on quality criteria based on requested quality, e.g. QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a method, device, and system for sending a sidelink channel state information report.
  • the coding method introduces the sidelink CSI feedback mechanism. Among them, a feedback mechanism is shown in FIG. 1. Terminal 2 sends a CSI trigger indication to terminal 1, and terminal 1 feeds back CSI to terminal 2 after receiving the trigger indication.
  • terminal 1 In order to transmit CSI including feedback to terminal 2, terminal 1 first needs to obtain sidelink resources. However, when the terminal 1 is in the radio resource control (RRC) connection state and the base station configures the terminal 1 to use the resource allocation method based on base station scheduling for side-link communication, there is currently no way to obtain information in the prior art. Method of transmitting sidelink resources of CSI.
  • RRC radio resource control
  • the terminal 1 can use the sidelink resource 1 for sending sidelink data to the terminal 2 to send CSI.
  • Terminal 1 can request sidelink resource 1 in the following ways:
  • the terminal 1 When the terminal 1 needs to send sidelink data to the terminal 2, the terminal 1 can request the sidelink resource 1 from the base station by triggering a sidelink buffer status report (BSR) and a scheduling request (Scheudling Request, SR). And this will have the following problems:
  • terminal 1 does not have sidelink data to send to terminal 2, terminal 1 will not be able to obtain sidelink resource 1 to transmit CSI. Or, terminal 1 has side link resource 1, but side link resource 1 cannot meet the requirement of the maximum transmission delay allowed by the CSI, then the CSI sent from terminal 1 to terminal 2 on side link resource 1 will be It has no reference value.
  • the embodiments of the present application provide a method, device, and system for sending a side link channel state information report, so as to avoid the situation that the terminal does not have available side link resources for feeding back CSI.
  • a method for sending a side link channel state information CSI report includes: when the first side link channel state information CSI report is triggered, a first terminal obtains a base station configuration for the first terminal The first side link resource that can be used to transmit the side link CSI report. The first terminal sends the first side uplink CSI report to the second terminal on the first side uplink resource. The first side link CSI report is used by the first terminal to feed back the CSI of the side link between the first terminal and the second terminal to the second terminal.
  • the embodiment of the present application provides a method for sending a side link channel state information CSI report.
  • the first terminal when the first side link channel state information CSI report is triggered, the first terminal obtains the base station as the first The first side uplink resource configured by the terminal for sending the side uplink CSI report, so that the first terminal can send the first side uplink CSI report to the second terminal on the first side uplink resource in time, In this way, the second terminal timely sets the modulation and coding mode of the side-link data according to the CSI of the side-link between the first terminal and the second terminal.
  • This method can avoid the situation that there is no available side link resource for CSI feedback in the prior art.
  • the method provided in the embodiment of the present application further includes: when a preset condition is met, the first terminal triggers the first scheduling Request SR.
  • the first terminal sends the first SR to the base station on the first SR resource according to the first SR configuration, and the first SR configuration and the first SR resource correspond to the SR used to request the side link resource for transmitting the side link CSI report.
  • the first terminal needs to feed back CSI and the first terminal does not have available side link resources, by sending the first SR, the first terminal can timely obtain the side link resources for sending the first side link CSI report .
  • the first SR configuration and the first SR resource may be predefined by the protocol.
  • the preset condition includes one or more of the following: the first terminal does not transmit the side link resource of the first side link CSI report. Or, the first terminal triggers the side link buffer status report BSR, but does not transmit the uplink resources of the side link BSR. Alternatively, if the first terminal does not transmit the side link resource of the first side link CSI report, the first terminal triggers the side link buffer status report BSR, but does not transmit the uplink resource of the side link BSR. This makes the conditions for the first terminal to trigger the first SR more flexible.
  • the method provided in the embodiment of the present application further includes: the first terminal receives the second message from the base station , The second message includes the first SR configuration identifier, and the first SR configuration identifier is associated with the first SR configuration and the first SR resource. It can be implemented that the base station dynamically configures the first SR configuration and the first SR resource for the first terminal.
  • the second message may also include information about the first SR configuration and the first SR resource.
  • the information of the first SR resource is used to determine the location of the first SR resource.
  • the method provided in the embodiment of the present application further includes: when the first side uplink CSI report is triggered, the first terminal starts the first timer. In the case where the first timer expires, if the first condition is met, the first terminal cancels the first side uplink CSI report.
  • the first condition includes one or more of the following: the first terminal has not received the first side link resource; or, the first terminal has not generated a media access control protocol data unit containing the first side link CSI report MAC PDU; or, the first terminal does not send a MAC PDU containing the first side link CSI report.
  • the timer expires, it indicates that the maximum allowable delay for sending the first side uplink CSI report has been reached. If the first side uplink CSI report continues to be sent to the second terminal, the first side uplink CSI report is reported to the second terminal It may also have no reference value, so the first terminal cancels the first side uplink CSI report to avoid signaling waste.
  • the method provided in the embodiment of the present application further includes: during the running of the first timer, if the second condition is met, the first terminal stops the first timer.
  • the second condition includes one or more of the following: the first terminal receives the first side uplink resource; or, the first terminal generates a MAC PDU containing the first side uplink CSI report; or, the first terminal has Send a MAC PDU containing the CSI report of the first side uplink.
  • the running period of the first timer means that the first timer is in the on state within the configured time period.
  • the method provided in the embodiment of the present application further includes: the first terminal receives the configuration authorization from the base station.
  • the configuration authorization is used by the first terminal to determine the side link resources configured by the base station for the first terminal that can be used to transmit the side link CSI report.
  • the first terminal can obtain the side link resources for sending the side link CSI report in advance.
  • the first terminal can send the first side link CSI report through the acquired side link resources, and it can also prevent the first terminal from not having available side link resources to feed back. The CSI situation happened.
  • the configuration authorization is used to indicate information about one or more side link resources configured for the first terminal.
  • One or more side link resources can be used to transmit the side link CSI report.
  • the first side uplink resource is a side uplink resource among one or more side uplink resources.
  • the configuration authorization is used to indicate the period of the second side uplink resource configured for the first terminal.
  • the implementation of this application further includes: if the configuration authorization is not activated, the first terminal triggers a second scheduling request SR.
  • the first terminal sends the second SR to the base station on the second SR resource according to the second SR configuration, and the second SR configuration and the second SR resource correspond to the SR used to request activation configuration authorization.
  • This method can enable the first terminal to obtain the side link resource for sending the side link CSI report by activating the configuration authorization when determining that it needs to send the side link CSI report.
  • the second SR configuration and the second SR resource may be predefined by the protocol.
  • the method provided in this embodiment of the present application further includes: the first terminal receives the second SR from the base station. SR configuration identifier.
  • the second SR configuration identifier is associated with the second SR configuration and the second SR resource.
  • the method provided in the embodiment of the present application further includes: the first terminal receives the second SR configuration and the second SR resource information from the base station.
  • the method provided in the embodiment of the present application further includes: the first terminal sends a first message including the first indication information to the base station.
  • the first indication information is used to indicate that the first terminal needs to transmit a side link CSI report. This facilitates the base station to determine that the first terminal needs to transmit the side-link CSI report, so as to configure the first terminal with information used to obtain the first side-link resource.
  • the information used to obtain the first side uplink resource may be the information of the first side uplink resource.
  • the information used to obtain the first side uplink resource may be configuration authorization.
  • the first message also includes a set of auxiliary information.
  • the auxiliary information set includes at least one of the following information: the maximum allowable delay of the first side uplink CSI report, the HARQ feedback configuration information of the first side uplink CSI report, and the first side uplink CSI report The maximum number of retransmissions, the length of the first signaling for transmitting the first side uplink CSI report, the period and time offset value of the first side uplink CSI report.
  • the base station may be assisted in configuring the first side link resource for the first terminal.
  • the method provided in the embodiment of the present application further includes: in the side link logical channel priority processing process, the first terminal determines that the first signaling of the first side link CSI report is carried The priority is the highest priority, or the priority of the first signaling is the first priority.
  • the method provided by the embodiment of the present application further includes: when the first terminal sends the MAC PDU containing the first signaling, the moment when the first terminal transmits the MAC PDU containing the first signaling conflicts with the moment of the first terminal's sidelink communication of the first standard. , The first terminal sends a MAC PDU including the first signaling; or, the first terminal determines whether to send a MAC PDU including the first signaling according to the second priority of the first signaling, and the first signaling includes the first side row Link CSI report.
  • the method provided in the embodiment of the present application further includes: the first terminal sends second indication information to the second terminal, where the second indication information is used to instruct the second terminal not to send HARQ information, or, The second indication information instructs the second terminal to send HARQ information.
  • the HARQ information is for the MAC PDU including the CSI report of the first side link.
  • the second indication information indicates that the second terminal does not send HARQ information
  • the third condition includes one or more of the following: MAC containing the first side uplink CSI report
  • the PDU is configured to not support the feedback of HARQ information, or the first side link CSI report does not support the feedback of HARQ information, or the base station configures the MAC PDU including the first side link CSI report to not support the feedback of HARQ information.
  • the second indication information instructs the second terminal to send HARQ information
  • the fourth condition includes one or more of the following: MAC PDU containing the first side uplink CSI report It is configured to support the feedback of HARQ information, or the first side link CSI report supports the feedback of HARQ information, or the base station configures the MAC PDU including the first side link CSI report to support the feedback of HARQ information.
  • the MAC PDU containing the first side link CSI report also includes the side link data carried on the first side link logical channel
  • the third condition further includes: including the first side link Among the priorities of the first side uplink logical channel and the first signaling included in the MAC PDU of the link CSI report, the one with the highest priority does not support the feedback of HARQ information.
  • the fourth condition further includes that the priority of the first side uplink logical channel and the priority of the first signaling support the HARQ information feedback with the highest priority.
  • an embodiment of the present application provides a method for sending a side link channel state information report, which includes: a base station sends a first side link resource configured for the first terminal to a first terminal; wherein, the first side Uplink resources can be used to transmit side-link CSI reports.
  • the method provided in this embodiment of the present application further includes: the base station receives the first scheduling request from the first terminal The first SR sent on the SR resource, the first SR corresponds to the first SR configuration, and the first SR configuration and the first SR resource correspond to the SR used to request the side link resource for transmitting the side link CSI report.
  • the method provided in the embodiment of the present application further includes: the base station sends to the first terminal the configuration including the first SR The second message identified.
  • the first SR configuration identifier is associated with the first SR configuration and the first SR resource.
  • the base station sending the first side link resource configured for the first terminal to the first terminal includes: based on the first SR, the base station sends the first side link resource information to the first terminal .
  • the information of the first side uplink resource is used to determine the time domain resource location and the frequency domain resource location of the first side uplink resource.
  • the method provided in this embodiment of the present application further includes: the base station sends a configuration authorization to the first terminal.
  • the configuration authorization is used by the first terminal to determine the side link resources configured by the base station for the first terminal that can be used to transmit the side link CSI report.
  • the configuration authorization is used to indicate information about one or more side link resources configured for the first terminal; one or more side link resources may be used to transmit the side link CSI report.
  • the first side uplink resource is a side uplink resource among one or more side uplink resources.
  • the configuration authorization is used to indicate the period of the second side link resource configured for the first terminal.
  • the method provided in this embodiment of the present application further includes: the base station receives the second SR resource from the first terminal The second SR sent on.
  • the second SR corresponds to the second SR configuration
  • the second SR configuration and the second SR resource correspond to the SR used to request activation configuration authorization.
  • the method provided in the embodiment of the present application further includes: the base station sends the second SR configuration identifier to the first terminal, and the first terminal The second SR configuration identifier is associated with the second SR configuration and the second SR resource.
  • the method provided in this embodiment of the present application further includes: the base station receives the first indication from the first terminal including the The first message of information.
  • the first indication information is used to indicate that the first terminal needs to transmit a side link CSI report.
  • the first message also includes a set of auxiliary information.
  • the auxiliary information set includes at least one of the following information: the maximum allowable delay of the first side uplink CSI report, the HARQ feedback configuration information of the first side uplink CSI report, and the first side uplink CSI report The maximum number of retransmissions, the length of the first signaling for transmitting the first side uplink CSI report, the period and time offset value of the first side uplink CSI report.
  • the base station can configure the first side link resource for the first terminal with the parameters in the auxiliary information set.
  • this application provides a communication device that can implement the first aspect or any possible implementation of the first aspect, and therefore can also implement the first aspect or any possible implementation of the first aspect
  • the beneficial effects in the may be a first terminal, or a device that can support the first terminal to implement the first aspect or the method in any possible implementation manner of the first aspect, for example, a chip applied to the first terminal.
  • the device can implement the above method by software, hardware, or by hardware executing corresponding software.
  • the communication device includes: a processing unit and a communication unit, and the communication unit is configured to send and receive information.
  • the processing unit is used to process actions other than sending and receiving information.
  • the processing unit is configured to obtain the first side uplink resource configured by the base station for the device and that can be used to transmit the side uplink CSI report.
  • the communication unit sends the first side uplink CSI report to the second terminal on the first side uplink resource.
  • the first side link CSI report is used for the communication unit to feed back the CSI of the side link between the device and the second terminal to the second terminal.
  • the processing unit when the first side uplink channel state information CSI report is triggered, is further configured to trigger the first scheduling request SR when the preset condition is met.
  • the communication unit is configured to send the first SR to the base station on the first SR resource according to the first SR configuration.
  • the first SR configuration and the first SR resource correspond to the side link resource used to request the transmission of the side link CSI report SR.
  • the first SR configuration and the first SR resource may be predefined by the protocol.
  • the preset condition includes one or more of the following: the device does not transmit the side link resource for the first side link CSI report. Or, the processing unit triggers the side link buffer status report BSR, but there is no uplink resource for transmitting the side link BSR. Alternatively, if the device does not transmit the side link resource of the first side link CSI report, the processing unit triggers the side link buffer status report BSR, but does not transmit the uplink resource of the side link BSR.
  • the communication unit is configured to send the first SR to the base station on the first SR resource according to the first SR configuration, and the communication unit is also configured to receive a second message from the base station.
  • the second message includes the first SR.
  • the SR configuration identifier, the first SR configuration identifier is associated with the first SR configuration and the first SR resource.
  • the second message may also include information about the first SR configuration and the first SR resource.
  • the information of the first SR resource is used to determine the location of the first SR resource.
  • the processing unit when the first side uplink CSI report is triggered, the processing unit is further configured to start the first timer. In the case where the first timer expires, if the first condition is met, the processing unit is further configured to cancel the first side uplink CSI report.
  • the first condition includes one or more of the following: the processing unit does not receive the first side uplink resource; or, the processing unit does not generate a MAC PDU containing the media access control protocol data unit CSI report of the first side uplink Or, the communication unit does not send a MAC PDU containing the first side link CSI report.
  • the timer expires, it indicates that the maximum allowable delay for sending the first side uplink CSI report has been reached. If the first side uplink CSI report continues to be sent to the second terminal, the first side uplink CSI report is reported to the second terminal It may also have no reference value, so the first terminal cancels the first side uplink CSI report to avoid signaling waste.
  • the processing unit is also used to stop the first timer.
  • the second condition includes one or more of the following: the communication unit receives the first side uplink resource; or, the processing unit generates a MAC PDU containing the first side uplink CSI report; or, the processing unit has sent the first side uplink resource MAC PDU reported by CSI on one side of the uplink.
  • the running period of the first timer means that the first timer is in the on state within the configured time period.
  • the communication unit when the first side uplink channel state information CSI report is triggered, the communication unit is also used to receive the configuration authorization from the base station.
  • the configuration authorization is used by the device to determine the side link resources configured by the base station for the device that can be used to transmit the side link CSI report.
  • the configuration authorization is used to indicate information about one or more side link resources configured for the device.
  • One or more side link resources can be used to transmit the side link CSI report.
  • the first side uplink resource is a side uplink resource among one or more side uplink resources.
  • the configuration grant is used to indicate the period of the second side uplink resource configured for the device. If the configuration grant is not activated, the first side uplink channel state information CSI report is triggered. Next, the processing unit is also used to trigger the second scheduling request SR.
  • the communication unit is configured to send a second SR to the base station on the second SR resource according to the second SR configuration, and the second SR configuration and the second SR resource correspond to the SR used to request the activation configuration authorization.
  • the second SR configuration and the second SR resource may be predefined by the protocol.
  • the communication unit is configured to receive the second SR configuration identifier from the base station before sending the second SR to the base station on the second SR resource according to the second SR configuration.
  • the second SR configuration identifier is associated with the second SR configuration and the second SR resource.
  • the communication unit is also used to receive the second SR configuration and second SR resource information from the base station.
  • the communication unit when the first side uplink channel state information CSI report is triggered, the communication unit is further configured to send a first message including the first indication information to the base station.
  • the first indication information is used to indicate that the device needs to transmit a side link CSI report.
  • the first message also includes a set of auxiliary information.
  • the auxiliary information set includes at least one of the following information: the maximum allowable delay of the first side uplink CSI report, the HARQ feedback configuration information of the first side uplink CSI report, and the first side uplink CSI report The maximum number of retransmissions, the length of the first signaling for transmitting the first side uplink CSI report, the period and time offset value of the first side uplink CSI report.
  • the processing unit is further configured to determine that the priority of the first signaling carrying the first side link CSI report is the highest priority, Or the priority of the first signaling is the first priority.
  • the communication unit when the time when the communication unit sends the MAC PDU containing the first signaling conflicts with the time of the side link communication of the first mode of the communication device, the communication unit is used to send the first signaling
  • the processing unit is configured to determine whether to send a MAC PDU containing the first signaling according to the second priority of the first signaling, the first signaling including the first side uplink CSI report.
  • the communication unit is further configured to send second indication information to the second terminal, where the second indication information is used to instruct the second terminal not to send HARQ information, or the second indication information indicates the second
  • the terminal sends HARQ information, and the HARQ information is for the MAC PDU containing the first side uplink CSI report.
  • the second indication information indicates that the second terminal does not send HARQ information for MAC PDU.
  • the third condition includes one or more of the following: including the first side uplink CSI report
  • the MAC PDU is configured to not support the feedback of HARQ information, or the first side link CSI report does not support the feedback of HARQ information, or the base station configures the MAC PDU including the first side link CSI report to not support the feedback of HARQ information.
  • the second indication information instructs the second terminal to send HARQ information for MAC PDU;
  • the fourth condition includes one or more of the following: including the first side uplink CSI
  • the reported MAC PDU is configured to support the feedback of HARQ information, or the first side link CSI report supports the feedback of HARQ information, or the base station configures the MAC PDU including the first side link CSI report to support the feedback of HARQ information.
  • the MAC PDU containing the CSI report of the first side link also includes the side link data carried on the first side link logical channel
  • the third condition further includes: the first side link The logical channel and the priority of the first signaling with the highest priority do not support the feedback of HARQ information.
  • the fourth condition further includes that the priority of the first side uplink logical channel and the priority of the first signaling support the HARQ information feedback with the highest priority.
  • an embodiment of the present application provides a communication device.
  • the communication device may be a first terminal or a chip in the first terminal.
  • the communication unit may be a transceiver or include one or more modules with a function of sending and receiving information
  • the processing unit may be a processor or include one or more modules with processing capabilities.
  • the communication device may also include a storage unit.
  • the storage unit may be a memory.
  • the storage unit is used to store computer program code, and the computer program code includes instructions.
  • the processing unit executes the instructions stored in the storage unit, so that the first terminal implements the method for sending a sidelink channel state information report described in the first aspect or any one of the possible implementation manners of the first aspect .
  • the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface.
  • the communication interface may be an input/output interface, pin or circuit, and so on.
  • the processing unit executes the computer program code stored in the storage unit, so that the first terminal implements the sending of a side link channel state information report described in the first aspect or any one of the possible implementation manners of the first aspect Method
  • the storage unit can be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit in the first terminal located outside the chip (for example, a read-only memory, a random access memory, etc.) ).
  • the processor, the communication interface/transceiver and the memory are coupled to each other.
  • the present application provides a communication device that can implement the second aspect or any possible implementation method of the second aspect, and therefore can also implement any possible implementation manner of the second aspect or the second aspect
  • the beneficial effects in the may be a base station, or may be a device that can support the base station to implement the second aspect or the method in any possible implementation manner of the second aspect, for example, a chip applied to the base station.
  • the device can implement the above method by software, hardware, or by hardware executing corresponding software.
  • the communication device includes: a communication unit and a processing unit, wherein the processing unit is used to process actions other than sending and receiving information, and the communication unit is used to send a configuration for the first terminal to the first terminal The first side uplink resource; where the first side uplink resource can be used to transmit the side uplink CSI report.
  • the communication unit is further configured to receive the first SR sent from the first terminal on the first scheduling request SR resource, the first SR corresponds to the first SR configuration, the first SR configuration and the first SR The resource corresponds to the SR used to request the side link resource for transmitting the side link CSI report.
  • the communication unit is further configured to send a second message including the first SR configuration identifier to the first terminal.
  • the first SR configuration identifier is associated with the first SR configuration and the first SR resource.
  • the communication unit is further configured to send the first side uplink resource information to the first terminal based on the first SR.
  • the information of the first side uplink resource is used to determine the time domain resource location and the frequency domain resource location of the first side uplink resource.
  • the communication unit is also used to send configuration authorization to the first terminal.
  • the configuration authorization is used for the side link resources that the first terminal determines to be configured for the first terminal and can be used to transmit the side link CSI report.
  • the configuration authorization is used to indicate information about one or more side link resources configured for the first terminal; one or more side link resources may be used to transmit the side link CSI report.
  • the first side uplink resource is a side uplink resource among one or more side uplink resources.
  • the configuration authorization is used to indicate the period of the second sidelink resource configured for the first terminal, and the communication unit is also used to receive the second transmission from the first terminal on the second SR resource.
  • SR corresponds to the second SR configuration, and the second SR configuration and the second SR resource correspond to the SR used to request activation configuration authorization.
  • the communication unit is further configured to send a second SR configuration identifier to the first terminal, and the second SR configuration identifier is associated with the second SR configuration and the second SR resource.
  • the communication unit is further configured to receive the first message including the first indication information from the first terminal.
  • the first indication information is used to indicate that the first terminal needs to transmit a side link CSI report.
  • the first message also includes a set of auxiliary information.
  • the auxiliary information set includes at least one of the following information: the maximum allowable delay of the first side uplink CSI report, the HARQ feedback configuration information of the first side uplink CSI report, and the first side uplink CSI report The maximum number of retransmissions, the length of the first signaling for transmitting the first side uplink CSI report, the period and time offset value of the first side uplink CSI report.
  • an embodiment of the present application provides a communication device.
  • the communication device may be a base station or a chip in the base station.
  • the communication unit may be a transceiver or include one or more modules with a function of sending and receiving information
  • the processing unit may be a processor or include one or more modules with processing capabilities.
  • the communication device may also include a storage unit.
  • the storage unit may be a memory.
  • the storage unit is used to store computer program code, and the computer program code includes instructions.
  • the processing unit executes the instructions stored in the storage unit, so that the base station implements the method for sending sidelink channel state information reports described in the second aspect or any one of the possible implementation manners of the second aspect.
  • the processing unit may be a processor, and the communication unit may be collectively referred to as a communication interface.
  • the communication interface may be an input/output interface, pin or circuit, and so on.
  • the processing unit executes the computer program code stored in the storage unit, so that the base station implements the method for sending sidelink channel state information reports described in the second aspect or any one of the possible implementations of the second aspect
  • the storage unit may be a storage unit (for example, a register, a cache, etc.) in the chip, or a storage unit (for example, a read-only memory, a random access memory, etc.) located outside the chip in the base station.
  • the processor, the communication interface/transceiver and the memory are coupled to each other.
  • the embodiments of the present application provide a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program or instruction.
  • the computer program or instruction runs on a computer, the computer executes the operations as described in the first aspect to the first aspect.
  • the embodiments of the present application provide a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program or instruction.
  • the computer program or instruction runs on a computer, the computer executes the operations as described in the second aspect to the first aspect.
  • the embodiments of the present application provide a computer program product including instructions.
  • the instructions When the instructions are executed on a computer, the computer executes the first aspect or a side line described in various possible implementations of the first aspect. Sending method of link channel status information report.
  • the present application provides a computer program product including instructions, which when the instructions run on a computer, cause the computer to execute the side link described in the second aspect or various possible implementations of the second aspect The sending method of the channel state information report.
  • an embodiment of the present application provides a communication system, which includes: the communication device described in the third aspect or any one of the possible designs described in the third aspect, and any one of the fourth aspect or the fourth aspect Possible design description of the communication device.
  • the communication system may further include: a second terminal.
  • the second terminal is used to trigger the first terminal to feed back CSI.
  • an embodiment of the present application provides a communication device.
  • the communication device includes a processor and a storage medium.
  • the storage medium stores instructions. When the instructions are executed by the processor, various possibilities such as the first aspect or the first aspect are realized.
  • the implementation mode describes a method for sending side link channel state information reports.
  • an embodiment of the present application provides a communication device.
  • the communication device includes a processor and a storage medium.
  • the storage medium stores instructions. When the instructions are executed by the processor, they can implement various aspects such as the second aspect or the second aspect. Possible implementations describe a method for sending side link channel state information reports.
  • an embodiment of the present application provides a communication device, including: at least one processor, at least one processor coupled with a memory, the memory is used to store computer programs or instructions, and at least one processor is used to execute the computer in the memory
  • the program or instruction causes the communication device to execute the method for sending a sidelink channel state information report described in the first aspect or various possible implementation manners of the first aspect.
  • an embodiment of the present application provides a communication device, including: at least one processor, at least one processor is coupled with a memory, the memory is used to store computer programs or instructions, and at least one processor is used to execute the computer in the memory
  • the program or instruction causes the communication device to execute the method for sending a sidelink channel state information report described in the second aspect or various possible implementation manners of the second aspect.
  • the communication device described in the twelfth aspect or the thirteenth aspect further includes a memory.
  • an embodiment of the present application provides a communication device.
  • the communication device includes one or more modules for implementing the methods of the first and second aspects above.
  • the one or more modules may be compatible with the above-mentioned first aspect and the second aspect.
  • the steps in the method of the second aspect correspond to each other.
  • an embodiment of the present application provides a chip that includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a computer program or instruction to implement the first aspect or each of the first aspect.
  • a method for sending side link channel state information reports described in this possible implementation manner, the communication interface is used to communicate with other modules outside the chip.
  • an embodiment of the present application provides a chip that includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a computer program or instruction to implement the second aspect or each of the second aspect.
  • a method for sending side link channel state information reports described in this possible implementation manner, the communication interface is used to communicate with other modules outside the chip.
  • the chip provided in the embodiment of the present application further includes a memory for storing computer programs or instructions.
  • any device or computer storage medium or computer program product or chip or communication system provided above is used to execute the corresponding method provided above. Therefore, the beneficial effects that can be achieved can refer to the corresponding method provided above The beneficial effects of the corresponding solutions in the method will not be repeated here.
  • FIG. 1 is a schematic diagram of triggering a CSI report according to an embodiment of this application
  • FIG. 2 is a system architecture diagram of a communication system provided by an embodiment of this application.
  • FIG. 3 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • 4 to 9 are schematic flowcharts of a method for sending sidelink channel state information reports according to an embodiment of this application.
  • FIG. 10 is a schematic diagram of a periodic side link resource provided by an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 12 is a schematic structural diagram of another communication device provided by an embodiment of this application.
  • FIG. 13 is a schematic structural diagram of a chip provided by an embodiment of the application.
  • words such as “first” and “second” are used to distinguish the same items or similar items that have substantially the same function and effect.
  • the first terminal and the first terminal are only used to distinguish different terminals, and the sequence of the first terminal is not limited.
  • words such as “first” and “second” do not limit the quantity and execution order, and words such as “first” and “second” do not limit the difference.
  • At least one refers to one or more, and “multiple” refers to two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • the following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
  • LTE long time evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • PLMN public land mobile network
  • D2D device-to-device
  • M2M machine to machine
  • future 5G communication systems etc.
  • Sidelink refers to: defined for the direct communication between the terminal and the terminal. That is, the terminal and the communication link between the terminal without forwarding through the base station.
  • the sidelink resource refers to the resource used by the terminal 1 to transmit control information and data with the terminal 2 on the side link.
  • FIG. 2 shows a communication system to which a method for sending sidelink channel state information provided by an embodiment of the present application is applied.
  • the communication system includes: one or more network devices (such as FIG. The network device 10 shown in 2), one or more terminals (such as the first terminal 20 and the second terminal 30 shown in FIG. 2).
  • the terminal is a vehicle as an example.
  • the first terminal 20 communicates with the network device 10, and the first terminal 20 communicates with the second terminal 30.
  • the second terminal 3 can also communicate with the network device 10.
  • the communication system shown in FIG. 2 may further include a core network.
  • the network device 10 can be connected to the core network.
  • the core network may be a 4G core network (for example, evolved packet core (EPC)) or a 5G core network (5G core, 5GC), or a core network in various future communication systems.
  • EPC evolved packet core
  • 5G core 5G core
  • RSU roadside unit
  • RSU can also provide various types of service information and data network access for each terminal in the system. For example, taking the terminal as a vehicle, for example, RSU can also provide non-stop charging and in-vehicle charging for each terminal in the system. Functions such as entertainment have greatly improved the intelligence of traffic.
  • the network device 10 may be an evolved Node B (eNB or eNodeB) in a 4G system.
  • the first terminal 20 is a terminal that can perform information transmission with an eNB.
  • the eNB accesses the EPC network through the S1 interface.
  • the network device 10 may be the next generation node B (gNB) in the NR system, and the first terminal 20 is a terminal that can transmit information with the gNB.
  • the gNB is connected to the 5GC through the NG interface.
  • the network device 10 may also be a third generation partnership project (3rd generation partnership project, 3GPP) protocol base station, or may be a non-3GPP protocol base station.
  • 3GPP third generation partnership project
  • first transmission link between the network device 10 and the first terminal 20.
  • the first transmission link may be a Uu link.
  • the second transmission link between the first terminal 20 and the second terminal 30.
  • the second transmission link may be a side link.
  • the Uu link is used to transmit the Uu service (information or data) sent by the network device 10 to the first terminal 20.
  • the first terminal 20 and the second terminal 30 can transmit V2X services to each other on the sidelink, which can also be referred to as sidelink data or sidelink control information (for example, the following sidelink CSI report).
  • the first terminal 20 may transmit an uplink (UL) Uu service to the network device 10 on the Uu link, and may also receive a downlink (DL) Uu service sent by the network device 10 on the Uu link.
  • UL uplink
  • DL downlink
  • the interface through which the first terminal 20 and the second terminal 30 communicate through direct connection may be the interface 1.
  • interface 1 can be called a PC5 interface, and uses a dedicated frequency band (such as 5.9 GHz) for the Internet of Vehicles.
  • the interface between the first terminal 20 and the network device 10 may be referred to as interface 2 (for example, Uu interface), and adopts a cellular network frequency band (for example, 1.8 GHz).
  • the PC5 interface is generally used in V2X or D2D scenarios where direct communication between devices can be carried out.
  • interface 1 and interface 2 are only examples, and the embodiment of the present application does not limit the names of interface 1 and interface 2.
  • FIG. 2 shows a scenario provided by an embodiment of the present application.
  • the vehicle X taking the second terminal 30 as the vehicle with the identifier X (abbreviated as vehicle X) as an example, if the vehicle X Deciding to perform an overtaking operation, the vehicle X can send the side row in the dialog box 50 to the first terminal 20 located in front of it (for example, the vehicle identified as Y (abbreviated as vehicle Y)) on the side link resource 1 Link data (for example, the side link data may be an overtaking indication, the current speed of vehicle X (for example, 75km/h)), so that vehicle Y, after receiving X’s current speed and overtaking indication, slows down, so that X Overtaking safely.
  • the side link data may be an overtaking indication, the current speed of vehicle X (for example, 75km/h)
  • the second terminal 30 may set the modulation and coding method used for the side link data. Based on this, the sidelink channel status information (Channel Status Information, CSI) feedback mechanism is introduced, that is, the second terminal 30 triggers the first terminal 20 to send the first terminal 20 through Sidelink Channel Information (SCI) CSI of the side link with the second terminal 30. In addition, the second terminal 30 sends a channel status information-reference signal (Channel Status Information-Reference Signal, CSI-RS) to the first terminal 20 for the first terminal 20 to perform measurement to obtain the CSI to be fed back.
  • CSI Channel Status Information
  • CSI-RS Channel Status Information-Reference Signal
  • the scenario shown in FIG. 2 is only an example, and other scenarios of communication between terminals are also applicable to the solution of this application.
  • V2X services are transmitted on the sidelink resources on the sidelink
  • Uu services are transmitted on the Uu resources on the Uu link.
  • the first terminal 20 or the second terminal 30 is a device with a wireless communication function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted. It can also be deployed on the water (such as ships, etc.). It can also be deployed in the air (for example, on airplanes, balloons, satellites, etc.).
  • the terminal is also called user equipment (UE), mobile station (MS), mobile terminal (MT), and terminal equipment, etc., which provide users with voice and/or data connectivity. equipment.
  • terminals include handheld devices and vehicle-mounted devices with wireless connection capabilities.
  • the terminal can be: mobile phone (mobile phone), tablet computer, notebook computer, palm computer, mobile internet device (MID), wearable device (such as smart watch, smart bracelet, pedometer, etc.), In-vehicle equipment (for example, cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed rail, etc.), virtual reality (VR) equipment, augmented reality (AR) equipment, industrial control (industrial control) Wireless terminals, smart home equipment (for example, refrigerators, TVs, air conditioners, electric meters, etc.), smart robots, workshop equipment, wireless terminals in self-driving, wireless terminals in remote medical surgery, and smart Wireless terminals in a smart grid, wireless terminals in transportation safety, wireless terminals in a smart city, or wireless terminals in a smart home, and flying equipment (e.g., smart Robots, hot air balloons, drones, airplanes), etc.
  • In-vehicle equipment for example, cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed rail, etc.
  • VR virtual reality
  • the terminal device is a terminal device that often works on the ground, such as a vehicle-mounted device.
  • chips deployed in the above-mentioned devices such as System-On-a-Chip (SOC), baseband chips, etc., or other chips with communication functions may also be referred to as terminals.
  • SOC System-On-a-Chip
  • baseband chips etc.
  • other chips with communication functions may also be referred to as terminals.
  • the first terminal 20 or the second terminal 30 may be a vehicle with corresponding communication function, or an in-vehicle communication device, or other embedded communication device, and may also be a user's handheld communication device, including a mobile phone, a tablet computer, and the like.
  • the current vehicle can communicate through vehicle-to-vehicle (V2V) or vehicle-to-infrastructure (V2I) (for example, the infrastructure is a roadside unit (roadside unit)). side unit (RSU)) or vehicle-to-pedestrian (V2P) or vehicle-to-network (V2N) communication to obtain road condition information or receive information services in time.
  • V2V vehicle-to-vehicle
  • V2I vehicle-to-infrastructure
  • V2I vehicle-to-infrastructure
  • V2I vehicle-to-infrastructure
  • V2I vehicle-to-infrastructure
  • V2I vehicle-to-infrastructure
  • V2I vehicle-to-infrastructure
  • V2I vehicle-to-infrastructure
  • V2I vehicle-to-infrastructure
  • RSU side unit
  • V2P vehicle-to-pedestrian
  • V2N vehicle-to-network
  • unmanned driving unmanned driving
  • autonomous driving automated driving/ADS
  • driver assistance/ADAS driver assistance/ADAS
  • intelligent driving intelligent driving
  • connected driving intelligent network driving
  • car sharing driving
  • the terminal may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for using wearable technology to intelligently design everyday wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • the network device 10 is an entity that cooperates with the first terminal 20 and can be used to transmit or receive signals.
  • it may be an access point (AP) in WLAN, or an evolved Node B (eNB or eNodeB) in long-term evolution (long time evolution) LTE, or a relay station or access point, Or in-vehicle equipment, wearable equipment, and network equipment in the future 5G network or network equipment in the future evolved PLMN network, etc.
  • AP access point
  • eNB or eNodeB evolved Node B
  • LTE long-term evolution LTE
  • a relay station or access point Or in-vehicle equipment, wearable equipment, and network equipment in the future 5G network or network equipment in the future evolved PLMN network, etc.
  • the network equipment provides services for the cell
  • the terminal communicates with the network equipment through the transmission resources (for example, time domain resources, or frequency domain resources, or time-frequency resources) used by the cell.
  • the cell may be a cell corresponding to a network device (e.g. a base station).
  • the cell may belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here may include: metro cell, micro cell ( Micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • FIG. 3 shows a schematic diagram of the hardware structure of a communication device provided by an embodiment of the present application.
  • the communication device includes a processor 31, a communication line 34, and at least one transceiver (in FIG. 3, it is only an example, taking the transceiver 33 as an example for illustration).
  • the processor 31 can be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more programs for controlling the execution of the program of this application. integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication line 34 may include a path to transmit information between the aforementioned components.
  • the transceiver 33 uses any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. .
  • RAN radio access network
  • WLAN wireless local area networks
  • the communication device may further include a memory 32.
  • the memory 32 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions
  • the dynamic storage device can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, optical disc storage (Including compact 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 codes in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this.
  • the memory can exist independently and is connected to the processor through the communication line 34.
  • the memory can also be integrated with the processor.
  • the memory 32 is used to store computer execution instructions for executing the solution of the present application, and the processor 31 controls the execution.
  • the processor 31 is configured to execute computer-executable instructions stored in the memory 32, so as to implement the policy control method provided in the following embodiments of the present application.
  • the computer-executable instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.
  • the processor 31 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 3.
  • the communication device may include multiple processors, such as the processor 31 and the processor 35 in FIG. 3.
  • processors can be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor.
  • the processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • One is a resource allocation method based on the scheduling of the network device 10, that is, the network device 10 schedules the sidelink resources for transmitting sidelink data or sidelink control information for the first terminal 20, which may also be referred to as mode 1.
  • the other is the way in which the first terminal 20 autonomously selects resources in the resource pool, that is, the first terminal 20 autonomously selects sidelink resources from the resource pool configured or pre-configured by the network device 10 through system messages or dedicated signaling to Transmit sidelink data or sidelink control information on independently selected sidelink resources.
  • the resource pool includes one or more side link resources.
  • the first terminal 20 may report the destination identifier of the communication peer terminal (for example, the second terminal 30) to the network device 10 through an RRC message .
  • the communication transmission method one of broadcast, multicast, and unicast
  • QoS quality of service
  • the network device 10 configures the resource allocation mode of the sidelink resources and the related dedicated configuration of the sidelink communication for the first terminal 20.
  • the dedicated configuration of sidelink communication includes the configuration of the sidelink radio bearer.
  • the network device 10 will configure for each sidelink radio bearer the scheduling request (SR) configuration and configuration of the radio bearer mapping for requesting sidelink resources. Scheduling requested resources.
  • the scheduling request configuration includes the identifier of the scheduling request configuration, the maximum transmission times of the scheduling request, and the prohibition timer of the scheduling request.
  • the scheduling request resource includes time-frequency domain resource configuration information of the physical layer that sends the scheduling request.
  • the first terminal 20 transmits the SR through the corresponding SR configuration and SR resources. In this way, the network device 10 can allocate sidelink resources to the first terminal 20 after receiving the SR. In addition, in order to allow the first terminal 20 to send a sidelink BSR, the SR-based network device 10 may also allocate uplink resources for the first terminal 20.
  • the first terminal 20 transmits the CSI to the second terminal 30 through Medium Access Control Protocol Control Element (MAC CE).
  • MAC CE Medium Access Control Protocol Control Element
  • the CSI in the embodiment of the present application may refer to the CSI of the side link between the first terminal 20 and the second terminal 30.
  • the first terminal 20 may send the MAC CE containing CSI to the second terminal 30 on the sidelink resource, that is, in order to send the MAC CE containing CSI, the first terminal 20 first needs to obtain the sidelink resource.
  • the first terminal 20 when it is preparing to send a MAC CE including CSI, it may not have sidelink resources.
  • the sidelink resources requested by the sidelink BSR can not only transmit sidelink data, but also transmit the control signaling of the RRC layer of the PC5 interface, but when it is necessary to transmit the MAC CE (Medium Access Control, MAC) layer It is impossible to trigger BSR and SR to request the base station to allocate sidelink resources.
  • MAC CE Medium Access Control
  • the first terminal 20 when the first terminal 20 needs to send the MAC CE including the sidelink CSI, if the first terminal 20 does not have sidelink resources, based on the above-mentioned sidelink communication process, the first terminal 20 cannot obtain the sidelink resources. Therefore, the first terminal 20 can wait for the first terminal 20 to have sidelink data to send, and request sidelink resources from the base station by triggering the sidelink BSR and SR. And this will have the following problems:
  • Case 1 The first terminal 20 has no data to send to the second terminal 30. In this way, the first terminal 20 cannot obtain sidelink resources to transmit CSI.
  • Case 2 After the first terminal 20 determines that it needs to send a MAC CE containing CSI, if it waits for the first time, the first terminal 20 will arrive at the sidelink data to be sent to the second terminal 30 and obtain the sidelink Resources. However, if the first duration is greater than the maximum transmission delay requirement of the CSI, after the MAC CE containing the CSI is sent to the second terminal 30 through the Sidelink resource, the CSI selects the second terminal 30 for data transmission. MCS also has no reference significance.
  • the specific structure of the executive body of the method for sending sidelink channel state information CSI report is not particularly limited in the embodiment of this application, as long as one of the embodiments of this application can be recorded by running
  • the program of the code of the method for transmitting the side link channel state information CSI report can be communicated using the method for transmitting the side link channel state information CSI report according to the embodiment of the present application.
  • the embodiment of the present application provides The execution subject of a method for sending a sidelink channel state information CSI report may be a functional module in the first terminal that can call and execute the program, or a communication device, such as a chip, applied to the first terminal,
  • the execution subject of the method for sending sidelink channel state information CSI report provided by the embodiment of the present application may be a functional module in the base station that can call and execute the program, or a communication device applied to the base station, such as a chip , This application does not limit this.
  • the following embodiment will be described by taking a method for sending a side link channel state information CSI report as an example where the execution subject is the first terminal.
  • FIG. 4 shows a method for sending a side link channel state information CSI report provided by an embodiment of the present application, and the method includes:
  • Step 401 When the first side uplink channel state information CSI report is triggered, the base station sends the first side uplink resource configured for the first terminal 20 to the first terminal 20, so that the first terminal 20 can obtain The first side uplink resource configured by the base station for the first terminal 20.
  • the base station may correspond to the network device 10 in the communication system shown in FIG. 2 above.
  • the first side link CSI report is used by the first terminal 20 to feed back the CSI of the side link between the first terminal 20 and the second terminal 30 to the second terminal 30.
  • the first side uplink resource can be used to transmit the side uplink CSI report.
  • the first side link resource in the embodiment of the present application may have the following meanings: meaning 1).
  • the side link resource configured or allocated by the base station for the first terminal 20 is specifically used to send the side link CSI report, and also That is, the first terminal 20 can send any side link CSI report on the first side link resource, and is not limited to sending the first side link CSI report. Or, meaning 2).
  • the first side uplink resource is specifically configured or allocated for sending the first side uplink CSI report. Or, meaning 3).
  • the first side link resource can not only send the side link CSI report, but also send other sidelink data or control information other than the side link CSI report. This is the case in the embodiment of the present application. Not limited.
  • the first side uplink resource configured by the base station for the first terminal 20 can be used by the first terminal 20 to send the first side uplink CSI report.
  • Step 402 The first terminal 20 sends a first side uplink CSI report to the second terminal 30 on the first side uplink resource, so that the second terminal 30 receives the first side uplink from the first terminal 20 CSI report.
  • the first side link CSI report in the embodiment of the present application may be carried in the first signaling.
  • the first signaling may be MAC CE.
  • the first signaling in the embodiment of the present application may be carried in a medium access control protocol data unit (MAC PDU), that is, the MAC PDU includes the first side uplink CSI report.
  • MAC PDU medium access control protocol data unit
  • the MAC PDU including the first side link CSI report or the MAC PDU including the first signaling may be referred to as the first MAC PDU.
  • the following will be described with the first MAC PDU. Here are unified descriptions, and will not be repeated in the following.
  • the first terminal 20 After the first terminal 20 obtains the first side link resource, the first terminal 20 generates the first signaling including the first side link CSI report, and cancels the triggered first side link. Link CSI report.
  • the embodiment of the present application provides a method for sending a side link channel state information CSI report.
  • the first terminal when the first side link channel state information CSI report is triggered, the first terminal obtains the base station as the first The first side uplink resource configured by the terminal for sending the side uplink CSI report, so that the first terminal can send the first side uplink CSI report to the second terminal on the first side uplink resource in time, In this way, the second terminal timely sets the modulation and coding mode of the side-link data according to the CSI of the side-link between the first terminal and the second terminal.
  • This method can avoid the situation that there is no available side link resource for CSI feedback in the prior art.
  • the method provided in the embodiment of the present application may further include: the first terminal 20 triggers the first side link CSI report.
  • an embodiment of the present application provides a method for triggering a first side link CSI report, and the method includes:
  • Step 501 The second terminal 30 sends indication information for triggering CSI feedback to the first terminal 20, so that the first terminal 20 receives the indication information for triggering CSI feedback.
  • the indication information for triggering CSI feedback may be included in the SCI sent by the second terminal 30 to the first terminal 20.
  • Step 502 The first terminal 20 triggers the first side uplink channel state information CSI report according to the indication information for triggering CSI feedback.
  • the physical layer of the first terminal 20 notifies the MAC layer of the first terminal 20 after receiving the indication information that triggers the CSI feedback. After the MAC layer of the first terminal 20 receives the notification from the physical layer, the MAC layer of the first terminal 20 triggers the first sidelink CSI report. After the first sidelink CSI report is triggered, the status of the first sidelink CSI report is considered to be pending until the first sidelink CSI report is cancelled.
  • the first terminal 20 may obtain the first side uplink resource configured by the base station for the first terminal 20 in the manner described in any one of FIGS. 6 to 8, which will be described separately below:
  • Example 1 The base station dynamically schedules the first side uplink resource for the first terminal 20.
  • the first terminal 20 may send the first SR and/or the sidelink (Sidelink Buffer Status Report, SL-BSR) to the base station to obtain the first sidelink resource.
  • SL-BSR Sidelink Buffer Status Report
  • the first terminal 20 first needs to obtain the first SR configuration for sending the first SR and the first SR resource.
  • the first terminal 20 acquiring the first SR configuration and the first SR resource for sending the first SR can be implemented in the following manner:
  • the first SR configuration and the first SR resource are configured in the first terminal 20.
  • the first SR configuration is associated with the first SR resource and a specific SR, and the specific SR is used to request transmission of sidelink CSI report sidelink resources.
  • the first terminal 20 may request the first SR configuration and the first SR resource from the base station.
  • step 601 For the process of the first terminal 20 requesting the first SR configuration and the first SR resource from the base station, reference may be made to the description in the following step 601 to step 603.
  • the method provided in the embodiment of the present application is before step 401, that is, before the first side uplink CSI report is triggered, the method provided in the embodiment of the present application may also include:
  • Step 601 The first terminal 20 sends a first message to the base station, so that the base station receives the first message from the first terminal 20.
  • the first message is used to indicate that the first terminal 20 needs to send a side link CSI report.
  • the first message may be a Sidelink UEInformation message of a side link terminal, or a UEAssistanceInformation message, or a newly defined RRC message, which is not limited in the embodiment of the present application.
  • the first message includes first indication information.
  • the first indication information may have the following meanings:
  • the first meaning is used to instruct the first terminal 20 to request the first SR configuration and the first SR resource from the base station, and the first SR configuration and the first SR resource are used to request the base station to send the sidelink of the side link CSI report Resources.
  • the second meaning is to indicate that the first terminal 20 needs to send a side link CSI report, or needs to send a first side link CSI report.
  • the side link CSI report that the first terminal 20 needs to send may be the first side link CSI report or other side link CSI reports.
  • the first message may also include the identifier of the second terminal 30.
  • the identifier of the second terminal 30 may be the destination identifier of the second terminal 30.
  • the first terminal 20 can indicate to the base station that the requested first SR configuration and the first SR resource are associated with the second terminal 30 through the first message. That is, the SR sent by the first terminal 20 according to the first SR configuration and the first SR resource is used to request the sidelink resource of the sidelink CSI report to be sent to the second terminal 30.
  • the first meaning of the first indication information can be further understood as: for instructing the first terminal 20 to request the first SR configuration and the first SR resource from the base station, and the first SR configuration and the first SR resource are used for The base station is requested to send the sidelink resource of the sidelink CSI report to the second terminal 30.
  • the second meaning can be further understood as: it is used to indicate that the first terminal 20 needs to send a side link CSI report to the second terminal 30.
  • Step 602 The first terminal 20 sends the auxiliary information set to the base station, so that the base station receives the auxiliary information set from the first terminal 20.
  • the auxiliary information set includes at least one of the following information: the maximum allowable delay of the first side uplink CSI report, and the hybrid automatic repeat request (Hybird Autonomou Repeat Requet, HARQ) feedback of the first side uplink CSI report Configuration information, the maximum number of retransmissions of the first side uplink CSI report, the length of the first signaling for transmitting the first side uplink CSI report, and the period and time offset for transmitting the first side uplink CSI report value.
  • the configuration information of the HARQ feedback is used to configure whether HARQ feedback is required for the transmission of the first side link CSI report.
  • the auxiliary information set may also include second auxiliary information: the period and time offset value of the CSI sent by the first terminal 20 to the second terminal 30. If the period and time offset of the CSI can be determined autonomously by the first terminal 20, they can also be determined by the first terminal 20 based on the sixth information from the second terminal 30.
  • the meaning of the maximum allowable delay is: after the first terminal 20 receives the indication of triggering CSI feedback from the second terminal 30, from the triggering of the CSI report to the first terminal 20 sending the first side chain to the second terminal 30 The maximum waiting time for the CSI report of the road.
  • the content of the auxiliary information set can be determined autonomously by the first terminal 20.
  • the first terminal 20 itself determines whether to instruct the second terminal to feed back HARQ information reported for the first side link CSI.
  • the first terminal 20 itself determines the maximum number of retransmissions of the first side uplink CSI report and the length of the first signaling for transmitting the first side uplink CSI report.
  • the HARQ information is used to indicate whether the first signaling for transmitting the first side uplink CSI report is correctly received.
  • the content of the auxiliary information set may also be instructed by the second terminal 30 to the first terminal 20.
  • the process of determining the auxiliary information set by the first terminal 20 according to the instruction of the second terminal 30 reference may be made to the description in FIG. 10 of the following embodiment, which will not be repeated here.
  • the method provided in the embodiment of the present application may further include: the first terminal 20 triggers the reporting of the first message.
  • FIG. 7 provides a method for the first terminal 20 to trigger the reporting of the first message, and the method includes:
  • Step 701 A unicast communication connection is established between the first terminal 20 and the second terminal 30.
  • step 701 For the specific implementation of step 701, reference may be made to the description in the prior art, which will not be repeated here.
  • Step 702 The second terminal 30 sends a side link capability inquiry message to the first terminal 20, so that the first terminal 20 receives the side link capability inquiry message.
  • the second terminal 30 if the second terminal 30 supports CSI-RS transmission, the second terminal 30 carries the following capability information in the side link capability inquiry message: the second terminal 30 supports CSI-RS transmission.
  • Step 703 The first terminal 20 sends a side link capability message to the second terminal 30, so that the second terminal 30 receives the side link capability message.
  • the first terminal 20 If the first terminal 20 supports sidelink CSI feedback to the second terminal, the first terminal 20 carries the following capability information in the sidelink capability message: the first terminal 20 supports sidelink CSI feedback. Or, if the second terminal 30 indicates in the side link capability inquiry message that the second terminal 30 supports sending CSI-RS, the first terminal 20 carries the first indication in the side link capability message, and the first indication indicates The first terminal 20 supports sidelink CSI feedback. Otherwise, the first terminal 20 does not carry the first indication in the side link capability message.
  • Step 704 The second terminal 30 sends the side-link access layer configuration information to the first terminal 20, so that the first terminal 20 receives the side-link access layer configuration information.
  • the access layer configuration information is carried by the PC5RRC message.
  • the configuration information of the access layer includes at least one of the following information:
  • the first information is used to indicate the CSI-RS pattern (pattern) that the second terminal 30 will send to the first terminal 20.
  • the second information is the maximum allowable delay of the first side link CSI report sent by the first terminal 20 to the second terminal 30.
  • the third information is that the first side uplink CSI supports HARQ information feedback or does not support HARQ information feedback.
  • the fourth information is the maximum number of retransmissions reported by the first side uplink CSI.
  • the fifth information carries the length of the first signaling of the first side uplink CSI report, that is, the length of the MAC CE that carries the first side uplink CSI report.
  • auxiliary information in step 602 may be correspondingly determined by the first terminal according to the second information, the third information, the fourth information, the fifth information, and the sixth information.
  • Step 705 After receiving the access stratum configuration information containing the CSI-RS pattern information sent by the second terminal 30, the first terminal 20 triggers the reporting of the first message.
  • the configuration information of the access layer may further include sixth information.
  • the sixth information is used to indicate the period and time offset value of the first terminal 20 to send the first side uplink CSI report to the second terminal 30; the period and time offset value can be used with the second terminal 30 to send data.
  • the period and the time offset value of the configuration authorization are the same; or the period and the time offset value are determined by the second terminal 30 based on implementation, which is not limited in the embodiment of the present application.
  • the first terminal 20 may subsequently determine the period and time offset value of the first side link CSI report in the auxiliary information set in combination with the sixth information.
  • the first terminal 20 may not send the auxiliary information set to the base station, that is, step 602 is an optional step.
  • the auxiliary information set may be sent to the base station through a separate message.
  • the auxiliary information set may be carried in other messages sent by the first terminal 20 to the base station.
  • the auxiliary information set may be carried in the first message.
  • step 602 can be omitted.
  • Step 603 The base station sends a second message to the first terminal 20, so that the first terminal 20 receives the second message from the base station.
  • the second message includes the first SR configuration identifier, the first SR configuration identifier is associated with the first SR configuration and the first SR resource, and the first SR configuration and the first SR resource correspond to the SR used to request the side link resource ,
  • the side link resource is used to transmit the side link CSI report.
  • the second message may include the first SR configuration and the first SR resource.
  • the first terminal 20 is configured with one or more SR configurations or one or more SR resources, so that the first terminal 20 can follow the An SR configuration identifier determines the first SR configuration and the first SR resource from one or more SR configurations or one or more SR resources.
  • one or more SR configurations or one or more SR resources may be pre-configured to the first terminal 20 or configured by the base station for the first terminal 20, which is not limited in the embodiment of the present application.
  • first SR configuration and the first SR resources are specifically configured by the base station for the first terminal 20 to send a specific SR.
  • the specific SR is used to request side link resources for transmitting the side link CSI report.
  • the specific SR may correspond to the following first SR.
  • the first SR configuration and the first SR resource configured by the base station for the first terminal 20 can not only be used by the first terminal 20 to request the second terminal 20 from the base station.
  • the sidelink resource of the sidelink CSI report sent by the terminal 30 may also be used by the first terminal 20 to request the base station to send the sidelink resource of the sidelink CSI report to the second terminal 30.
  • the first SR configuration and the first SR resource configured by the base station for the first terminal 20 are used to request the sidelink resource of the sidelink CSI report to be sent to the second terminal 30.
  • the first terminal 20 The first SR sent to the base station through the first SR configuration and the first SR resource is used to request the second terminal 30 to send the sidelink resource of the sidelink CSI report.
  • the base station configures the first SR configuration and the first SR resource for the first terminal 20.
  • the specific content of the auxiliary information collection can be considered. That is, the base station combines the specific content of the auxiliary information set to configure the first SR configuration and the first SR resource for the first terminal 20.
  • the base station determines the length of the prohibition time timer and the maximum number of transmissions in the first SR configuration configured for the first terminal 20 according to the maximum allowable time delay of the CSI in the auxiliary information information, and the SR in the first SR resource. Resource cycle.
  • the method provided in the embodiment of the present application may further include:
  • Step 604 When the preset condition is met, the first terminal 20 triggers the first scheduling request SR.
  • the preset condition includes one or more of the following: the first terminal 20 does not transmit the side link resource for the first side link CSI report; or, the first terminal triggers the side link buffer status report BSR , But there is no uplink resource for transmitting the side link BSR, or if the first terminal does not transmit the side link resource for the first side link CSI report, the first terminal triggers the side link buffer status report BSR, but There is no uplink resource for transmitting the side link BSR.
  • step 604 can be replaced by any of the following steps 604a to 604c:
  • Step 604a In the case where the side link resource for transmitting the first side link CSI report is not transmitted, the first terminal 20 triggers the first scheduling request SR.
  • Step 604b In the case that there is no side link resource for transmitting the first side link CSI report, the first terminal 20 triggers a side link buffer status report (SL-BSR). If the first terminal 20 does not transmit uplink (uplink) resources for the SL-BSR, the first terminal 20 triggers the first scheduling request SR. In step 604b, when the first terminal 20 triggers the first side link CSI report, if the first terminal 20 determines that there is no side link resource for transmitting the first side link CSI report, SL will be triggered. -BSR. After the SL-BSR is triggered, if there is an uplink resource for transmitting the SL-BSR, the first terminal 20 can directly transmit the SL-BSR through the uplink resource, that is, the first SR is no longer triggered.
  • SL-BSR side link buffer status report
  • Step 604c The first terminal 20 triggers the side link buffer status report SL-BSR. If the first terminal 20 does not transmit the uplink resources of the SL-BSR, the first terminal 20 triggers the first scheduling request SR. It can be understood that, in step 604c, when the first terminal 20 triggers the first side link CSI report, the first terminal 20 triggers the SL-BSR. After the SL-BSR is triggered, if there is an uplink resource for transmitting the SL-BSR, the first terminal 20 can directly transmit the SL-BSR through the uplink resource, that is, the first SR is no longer triggered.
  • the side link resource for which the first terminal 20 does not transmit the first side link CSI report may include one of the following three situations:
  • the first terminal 20 does not have any sidelink resources.
  • the sidelink resource cannot be used to transmit the side link CSI report.
  • the first terminal 20 has a sidelink resource, but the sidelink resource cannot accommodate the first signaling carrying the sidelink CSI report and the header of the first signaling.
  • the first terminal 20 does not transmit the uplink resources of the SL-BSR, which may include one of the following three situations:
  • the first terminal 20 does not have any uplink resources. 2) Although the first terminal 20 has an uplink resource, the uplink resource cannot meet the delay requirement of the side link CSI report. 3) The first terminal 20 has uplink resources, but the uplink resources cannot accommodate the MAC CE carrying the SL BSR and the corresponding MAC message header.
  • the first terminal 20 may request the base station for the first side uplink through the following steps 605 to 607 Resources:
  • steps 605 to 607 in FIG. 6 describe the process of the first terminal 20 requesting the first side uplink resource according to the first SR configuration and the first SR resource.
  • Step 605 The first terminal 20 sends the first SR to the base station on the first SR resource according to the first SR configuration, so that the base station receives the first SR.
  • the first SR is used to request the base station to allocate a side link resource that can be used to transmit a side link CSI report for the first terminal.
  • the base station may determine to configure the first side uplink resource for the first terminal 20.
  • the subsequent base station receives the first SR on the first SR resource, and/or the first SR Using the first SR configuration, the base station can determine that the first SR is used to request the base station to allocate the side link resources that can be used to transmit the side link CSI report for the first terminal.
  • the base station can It is considered that the first SR is to request the base station to allocate the side-link resources that can be used to transmit the side-link CSI report for the first terminal.
  • the first terminal 20 has been configured with the first SR configuration and the first SR resource, or the first SR configuration and the first SR resource are predefined by the protocol, and the base station also knows the first SR configuration and the first SR resource.
  • the meaning of the SR resource, or the first terminal 20 has the first SR configuration and the first SR resource.
  • the base station does not know the meaning of the first SR configuration and the first SR resource
  • the first terminal 20 uses the first SR to request the base station to In the case where the first terminal 20 allocates the side uplink resources that can be used to transmit the side uplink CSI report, the above steps 601 to 603 can be omitted. That is, when the first terminal 20 is configured with the first SR configuration and the first SR resource, the process of the first terminal 20 requesting the base station to allocate the first SR configuration and the first SR resource can be omitted.
  • Step 606 The base station sends the information of the first side link resource to the first terminal 20, so that the first terminal 20 receives the information of the first side link resource from the base station.
  • the information of the first side uplink resource may be the time domain position, the frequency domain position of the first side uplink resource, or the identifier of the first side uplink resource.
  • step 401 in the embodiment of the present application can be implemented in the following manner:
  • Step 607 When the first side uplink channel state information CSI report is triggered, the first terminal 20 determines the first side uplink resource according to the information of the first side uplink resource.
  • the first terminal 20 in addition to the first SR triggered by the first sidelink CSI report, the first terminal 20 also triggers the SR1 of the logical channel of other sidelink radio bearers, and the SR resource associated with SR1 is the same as the first SR.
  • the first SR resources associated with the SR overlap in time, then the first terminal 20 preferentially sends SR1, or the first terminal 20 preferentially sends the first SR.
  • the first terminal 20 compares the priority of SR1 with the priority of the first SR, and sends the SR with the higher priority first. In this way, the first terminal 20 may also transmit the first side link CSI report on the side link resource acquired based on SR1.
  • the method provided in the embodiment of the present application further includes:
  • Step 608 When the first side uplink CSI report is triggered, the first terminal 20 starts the first timer.
  • Step 609 In the case where the first timer expires, if the first condition is met, the first terminal 20 cancels the first side uplink CSI report.
  • the first condition includes one or more of the following: the first terminal 20 does not receive the first side uplink resource. Or, the first terminal 20 does not generate a PDU containing the first MAC. Or, the first terminal 20 does not send the first MAC PDU.
  • the first terminal 20 cancels the first SR when the first timer expires and the first condition is satisfied.
  • step 604 is replaced with step 604b or 604c, optionally, if SL-BSR is triggered, if the first timer expires and the first condition is met, the first terminal 20 cancels the first side line The SL-BSR triggered by the link CSI report.
  • the method provided in this embodiment of the present application further includes:
  • Step 610 During the running of the first timer, if the second condition is met, the first terminal 20 stops the first timer.
  • the second condition includes one or more of the following: the first terminal 20 receives the first side uplink resource; or, the first terminal 20 generates the first MAC PDU. Or, the first terminal 20 has sent the first MAC PDU.
  • the MAC PDU including the first side link CSI report is equivalent to the MAC PDU including the first signaling.
  • the first terminal 20 cancels the first SR.
  • step 604 is replaced with step 604b or 604c, optionally, if SL-BSR is triggered, if the first condition is met, the first terminal 20 cancels the triggering of the first side uplink CSI report SL-BSR.
  • the first terminal 20 cancels sending the SR. In addition, the first terminal 20 cancels the triggered first side link CSI report, stops the first timer, and triggers the random access procedure.
  • the first terminal 20 cancels the triggered first sidelink CSI report, and stops the first sidelink CSI report. A timer, but the first terminal 20 does not trigger the random access procedure.
  • the length of the first timer is defined by a protocol, or determined by the first terminal 20, or indicated by the second terminal 30 for the first terminal 20.
  • the length of the first timer is the maximum allowable delay of the first side uplink CSI report.
  • Step 611 is the same as step 402, and will not be repeated here in the embodiment of the present application.
  • the first side uplink resource can also be used by the first terminal 20 to send side uplink data other than the first side uplink CSI report to the second terminal 30, however, it is limited by the first side uplink
  • the first terminal 20 can determine the priority of the first signaling, and according to the priority of the first signaling and the priority of other side-link data, determine that the first side link resource is sent first on the first side link resource.
  • One signaling is still other side link data.
  • the method provided in the embodiment of the present application may further include before step 611:
  • Step 612 During the priority processing of the sidelink logical channel, the first terminal 20 determines that the priority of the first signaling is the highest priority, or the priority of the first signaling is the first priority.
  • the priority of the first signaling is the highest priority or the priority of the first signaling is the first priority, which can be determined autonomously by the first terminal 20, or can be determined by the base station through dedicated signaling or system information.
  • the first terminal 20 configures the priority of the first signaling.
  • the first terminal 20 may compare the first priority of the first signaling with the priority of the side link logical channel to determine whether to preferentially use the first side link resource to send the first signaling or to send the side link logic. Sidelink data on the channel.
  • the priority of the first signaling is the highest priority
  • the first terminal 20 when the first terminal 20 performs logical channel priority processing on the first sidlink resource scheduled by the base station, it will preferentially select the pair that needs to feed back the CSI report of the first side link.
  • the destination identifier of the end terminal ie, the second terminal 30.
  • the first terminal 20 sends the first side link CSI report to the second terminal 30, and the first terminal also transmits side link data to the third terminal or the second terminal, in this case, the logic
  • the first terminal 20 will select the second terminal, that is, communicate with the second terminal 30 by using the first sidelink resource scheduled by the base station.
  • the first terminal 20 may preferentially send the first signaling on the first sidelink resource.
  • the sidelink data may also be sent to the second terminal on the first sidelink resource.
  • the first terminal 20 When the priority of the first signaling is the highest priority, when the first terminal 20 needs to feed back the first side link CSI report to multiple peer terminals at the same time, the first terminal 20 further obtains the The destination identifier of the opposite terminal corresponding to the side link logical channel with the data to be transmitted and the side link logical channel priority is selected among the end terminals. For example, UE1 needs to feed back MAC CE carrying CSI to UE2 and UE3 at the same moment, and UE1 also needs to send side uplink data to UE2 and UE3 at this moment.
  • the priority of the side link logical channel of the side link data that UE1 needs to send to UE2 is 2, and the priority of the side link logical channel of the side link data that UE1 needs to send to UE3 is 3. Then when the destination terminal is selected in the logical channel priority process, UE1 will select UE2 (the priority of the side link logical channel of UE2’s side link data is higher than the side link of UE3’s side link data. Priority of the logical channel), that is, UE1 uses the first sidelink resource scheduled by the base station to communicate with UE2.
  • the priority of the MAC CE carrying CSI in the logical channel priority processing process may also be used to determine the first signaling or the HARQ retransmission times of the first MAC PDU.
  • the first terminal 20 When the first terminal 20 sends the first signaling to the second terminal 30, a possible situation is that the first terminal 20 needs to communicate through the side link of LTE at the same time. For example, the first terminal 20 transmits side-link data, transmits synchronization signals, or transmits side-link system information of LTE through the side link of LTE. In this case, if the first terminal 20 cannot send the first signaling on the side link of NR and communicate on the side link of LTE at the same time, then the first terminal 20 needs to abandon one of the side links. Transmission. Therefore, the first terminal 20 can determine the priority of the first signaling sent on the side link of NR and the LTE information sent on the side link of LTE. For example, LTE information may include data, or synchronization signals, or system information. In this case, the first terminal 20 may obtain the priority of the first signaling in step 612 or step 613:
  • Step 613 When the moment when the first terminal 20 sends the first MAC PDU conflicts with the moment of the side link communication of the first standard of the first terminal 20, the first terminal 20 sends the first MAC PDU. That is, the priority of the first MAC PDU is the highest.
  • the side link of the first standard may refer to the side link of LTE.
  • the first MAC PDU in the embodiment of the present application is sent on the side link of the second standard.
  • the side link of the second mode may be the side link of NR.
  • the time of the first MAC PDU conflicts with the time of the sidelink communication of the first standard of the first terminal 20 refers to the time when the first terminal 20 sends the first MAC PDU and the first terminal 20 is in the first
  • the time of communication on the side link of the standard is the same, or the time of the two is within a preset error.
  • Step 614 When the moment when the first terminal 20 sends the first MAC PDU conflicts with the moment of the first terminal's sidelink communication of the first standard, the first terminal 20 determines whether to send according to the second priority of the first MAC PDU The first MAC PDU.
  • the side link communication of the first standard is LTE-based side link communication.
  • step 614 can be implemented in the following manner: when the second priority of the first MAC PDU is higher than the priority of the side link of the first standard, the first terminal 20 is in the second standard The first MAC PDU is transmitted on the side link, and the LTE information sent on the LTE side link is discarded.
  • step 613 can be implemented in the following manner: the base station configures the first MAC PDU as the highest priority through dedicated signaling or system information, or step 6134 can be implemented in the following manner : The base station pre-configures a second priority for the first MAC PDU through dedicated signaling or system information, and the second priority is used for comparison with the priority of the side link of LTE.
  • the priority of the first MAC PDU is 2. If the first terminal 20 needs to send LTE information on the side link of LTE, and the priority of the LTE information is 1 (that is, the priority of the side link of LTE is 2), then in the above situation, the first A terminal 20 gives up transmitting the first MAC PDU on the side link of NR, and sends LTE information on the side link of LTE (that is, the priority of the side link of LTE is higher than the first MAC PDU of the first MAC PDU). Second priority).
  • the first terminal 20 transmits the first MAC PDU on the side link of NR, and gives up on LTE LTE information is sent on the side link of the LTE (that is, the priority of the LTE side link is lower than the second priority of the first MAC PDU).
  • step 614 in the embodiment of the present application can be specifically implemented in the following manner: if the time of the first MAC PDU conflicts with the time of the side link communication of the first standard of the first terminal, if the first MAC PDU If the second priority of is higher than the priority of the side link of the first standard, the first terminal 20 sends the first MAC PDU. When the second priority of the first MAC PDU is lower than the priority of the side link of the first standard, the first terminal 20 sends LTE information on the side link of LTE.
  • the second priority may be the same as the first priority of the first MAC PDU in the priority processing process of the sidelink logical channel.
  • the method provided in the embodiment of the present application may further include:
  • Step 615 The first terminal 20 sends the second indication information to the second terminal 30, so that the second terminal 30 receives the second indication information from the first terminal 20.
  • the second indication information is used to indicate that the second terminal does not send HARQ information, or the second indication information indicates that the second terminal sends HARQ information.
  • the HARQ information is for the first MAC PDU.
  • the second indication information in the embodiment of the present application may be carried in the first MAC PDU.
  • the second indication information indicates that the second terminal does not send HARQ information for the first MAC PDU;
  • the third condition includes one or more of the following: It is configured to not support the feedback of HARQ information, or the first side link CSI report does not support the feedback of HARQ information, or the base station configures the first MAC PDU to not support the feedback of HARQ information.
  • the second indication information instructs the second terminal 30 to send HARQ information for the first MAC PDU;
  • the fourth condition includes one or more of the following: the first MAC PDU is configured to support HARQ information feedback, or ,
  • the first side link CSI report supports the feedback of HARQ information, or the base station configures the first MAC PDU to support the feedback of HARQ information.
  • the first MAC PDU further includes side link data carried on the first side link logical channel
  • the third condition further includes: the first side link logic included in the first MAC PDU The channel with the highest priority of the first signaling priority does not support the feedback of HARQ information
  • the fourth condition also includes: the first side uplink logical channel included in the first MAC PDU and the priority of the first signaling priority Those with the highest level support HARQ information feedback.
  • the first terminal 20 sends the first MAC PDU to the second terminal 30, and the HARQ retransmission of the first MAC PDU has the following two aspects:
  • the first MAC PDU contains only the first signaling, there are several options for whether HARQ feedback is required for the transmission of the first MAC PDU:
  • Option 1 Pre-defined in the standard: If the first MAC PDU contains only the first signaling, the transmission of the first MAC PDU does not support HARQ feedback.
  • Option 2 If the first MAC PDU contains only the first signaling, whether the transmission of the first MAC PDU supports HARQ feedback depends on the third information notified by the second terminal 30 to the first terminal 20, that is, the first side An indication of whether the transmission of the uplink CSI report supports HARQ feedback.
  • Option 3 If the first MAC PDU contains only the first signaling, whether the transmission of the first MAC PDU supports HARQ feedback is configured by the base station for the first terminal 20 through dedicated signaling or system information, and the first terminal 20 Notify the second terminal 30.
  • the first MAC PDU contains both the first signaling and side link data
  • whether the transmission of the first MAC PDU supports HARQ feedback depends on the first signaling contained in the first MAC PDU
  • the method provided in the embodiment of the present application further includes:
  • Step 616 The first terminal 20 determines the maximum number of retransmissions of the first MAC PDU.
  • the maximum number of retransmissions of the first MAC PDU is predefined by the protocol, or determined by the maximum number of retransmissions corresponding to the first side uplink CSI report, or the maximum number of retransmissions of the first MAC PDU is configured by the base station .
  • the first MAC PDU in addition to the first signaling, also includes side link data carried on the first side link logical channel.
  • the maximum number of retransmissions of the first MAC PDU is determined by the first The first side uplink logical channel included in a MAC PDU and the corresponding retransmission times with the highest priority among the priorities of the first signaling are determined.
  • the determination of the maximum number of HARQ retransmissions of the first MAC PDU has the following options:
  • Option 1 If only the first signaling is included in the first MAC PDU, the maximum number of HARQ retransmissions of the first MAC PDU is predefined by the protocol.
  • the maximum number of HARQ retransmissions of the first MAC PDU depends on the value of the fourth information sent by the second terminal 30 for the first terminal 20, that is, the first The maximum number of retransmissions of signaling.
  • Option 3 If the first MAC PDU contains only the first signaling, the maximum number of HARQ retransmissions of the first MAC PDU is configured by the base station of the first terminal 20 through dedicated signaling or system information.
  • the maximum number of HARQ retransmissions for the first MAC PDU depends on the logical channel priority contained in the first MAC PDU The maximum number of HARQ retransmissions for the highest logical channel.
  • the method provided in the embodiment of the present application may further include after step 611:
  • Step 617 When the first terminal 20 determines that it no longer needs to send the side link CSI report, the first terminal 20 may send a fourth message to the base station, so that the base station receives the fourth message.
  • the fourth message may be a SidelinkUEInformation message, or a UEAssistanceInformation message, or a newly defined RRC message.
  • the fourth message includes third indication information.
  • the third indication information can have the following two optional meanings:
  • the first meaning used to indicate that the first terminal 20 no longer needs the first SR configuration and the first SR resource associated with the first SR configuration identifier configured by the base station in the second message.
  • the fourth message may also include the identity of the second terminal.
  • the condition for the first terminal 20 to determine that it no longer needs to send the side link CSI report may include, for example: CSI, or the unicast communication connection between the first terminal 30 and the first terminal 20 is released.
  • the second terminal 30 notifies the first terminal 20 that there is no need to feed back the CSI of the side link between the first terminal 20 and the second terminal 30 as follows: the second terminal releases the configuration for the first terminal before releasing CSI-RS pattern.
  • Example 2 The base station configures a configuration grant (Configured Grant) for the first terminal 20.
  • the method provided in the embodiment of the present application may further include:
  • Step 801 and step 802 are the same as the description of step 601 and step 602.
  • the first indication information has the second meaning described above.
  • the auxiliary information may also include the period and time offset value of the first terminal 20 sending the first side link CSI report.
  • the period and time offset value may be determined autonomously by the first terminal 20, or may be indicated by the second terminal 30 for the first terminal 20, which is not limited in the embodiment of the present application.
  • Step 803 The base station sends a configuration authorization to the first terminal 20, so that the first terminal 20 receives the configuration authorization from the base station.
  • the configuration authorization is used by the first terminal 20 to determine the side link resources configured by the base station for the first terminal 20 that can be used to transmit the side link CSI report.
  • the configuration authorization may be carried in the third message.
  • the third message may be an RRC message.
  • step 801 to step 803 describe a process in which the base station configures the configuration authorization for the first terminal 20 under the trigger of the first terminal 20.
  • step 801 and step 802 can be omitted.
  • the first terminal 20 determines the first side uplink resource according to the configuration authorization in different ways, which will be introduced separately as follows:
  • Example 2-1 The configuration authorization is used to indicate information about one or more side link resources configured for the first terminal 20. It can be called the first type of configuration authorization. One or more side link resources can be used to transmit the side link CSI report.
  • the configuration authorization in Example 2-1 of the embodiment of the present application may include one or more configuration authorizations of the first type.
  • Each of the one or more configuration authorizations of the first type indicates the information of the side link resource configured for the first terminal 20.
  • Example 2-1 when the first side link CSI report is triggered, the first terminal 20 sends a first message to the base station to indicate that the first terminal wants to send the side link CSI report (or To send the first side link CSI report), the base station instructs the base station to configure one or more side link resources for the first terminal 20 through configuration authorization. Subsequently, after the first terminal 20 generates the first side uplink CSI report, it can select one side uplink resource from one or more side uplink resources as the first side uplink resource, that is, the first side uplink resource.
  • the side uplink resource is a side uplink resource among one or more side uplink resources. That is, step 401 can be implemented by the following step 804: when the first side uplink channel state information CSI report is triggered, the first terminal 20 determines that the first side uplink resource is one or more side uplink resources Side link resources.
  • the time of the first side uplink resource is after the trigger time of the first side uplink CSI report.
  • the time interval between the moment of the first side uplink resource and the trigger moment meets the maximum allowable delay of the first side uplink CSI report.
  • the time interval between any one of the one or more side link resources and the trigger moment is greater than the maximum allowable delay of the first side link CSI report, or one or more
  • the time interval between the moment of the target side link resource in the two side link resources and the moment when the first terminal 20 sends the first side link CSI report is greater than the maximum allowable delay of the first side link CSI report ,
  • the first terminal 20 cancels the first side link CSI report.
  • the target side uplink resource is located after the trigger moment of the first side uplink CSI report, and the time interval between the time when the first terminal 20 sends the first side uplink CSI report is less than one or more side The time interval between other side uplink resources in the uplink resources and the time when the first side uplink CSI report is sent. That is, although the base station configures the first terminal 20 with one or more side link resources that can be used to transmit the side link CSI report, if the side link resource is used to send the first side link CSI report, it is possible This may cause the delay of the first side uplink CSI report to exceed the maximum allowable delay, so the first terminal 20 may give up sending the first side uplink CSI report.
  • the first type of configuration authorization is used to determine the side link resource for the first terminal 20 to send the side link CSI report. If the first message carries the identity of the second terminal, the first type of configuration is authorized for the first terminal 20 to determine the side link resources of the side link CSI report sent by the first terminal 20 to the second terminal 30.
  • the protocol may define that the base station configures the first terminal 20 with the first type of configuration authorization.
  • Step 805 in FIG. 8 is the same as step 402 and will not be repeated here.
  • the embodiment shown in FIG. 8 may further include: step 806 to step 811.
  • step 806 to step 811 reference may be made to the description in step 612 to step 617, which will not be repeated here.
  • the second indication information may have the following two optional meanings:
  • the first meaning used to indicate that the first terminal 20 no longer needs the first type of configuration authorization configured by the base station in the second message.
  • Example 2-2 The configuration authorization is used to indicate the period of the second side link resource configured for the first terminal 20, which may be referred to as the second type of configuration authorization.
  • the configuration authorization is also used to indicate the time offset of the second side uplink resource configured for the first terminal 20.
  • the base station uses the first type of configuration authorization to indicate to the first terminal 20 one or more configurations that have been configured for the first terminal 20.
  • the second side uplink resource The base station uses the second type of configuration authorization to indicate to the first terminal 20 that it has side-link resources that can be used to transmit the side-link CSI report, but at this time the base station does not tell the first terminal 20 that the side-link resources are available for transmission.
  • the time-frequency position of the side link resource reported by the CSI the first terminal 20 can subsequently activate the second type of configuration authorization to determine the second type of configuration authorization that can be used to transmit the side link CSI report.
  • the time-frequency location of the side link resource The time-frequency location of the side link resource.
  • the configuration authorization of the second type indicates to the first terminal 20 that there are sidelink resources that can be used to transmit the sidelink CSI report.
  • the base station will not only It indicates the time-frequency position of the side link resource that can be used to transmit the side link CSI report, and also indicates to the first terminal 20 the period of the side link resource that can be used to transmit the side link CSI report. That is, after the first terminal 20 activates the second type of configuration authorization, the side link resources indicated by the second type of configuration authorization are periodic resources.
  • the method provided in the embodiment of the present application may further include before step 401:
  • Steps 901 to 902 are the same as steps 601 to 602, and the steps are described in detail here.
  • Step 903 The base station sends a configuration authorization to the first terminal 20, so that the first terminal 20 receives the configuration authorization from the base station.
  • the configuration authorization can be carried in the third message.
  • Step 904 The base station sends the second SR configuration identifier to the first terminal 20, so that the first terminal 20 receives the second SR configuration identifier.
  • the second SR configuration is associated with the second SR configuration and the second SR resource, and the second SR configuration and the second SR resource correspond to the SR used to request the activation configuration authorization.
  • the second SR configuration identifier may be carried in the foregoing third message.
  • step 904 can be omitted.
  • the second SR configuration and the second SR resource may be included in the second message, or may be a group of SR configuration sets configured to the first terminal 20 by the base station before.
  • the SR configuration set includes SR resources and SR configurations.
  • the first terminal 20 may select the second SR configuration and the second SR resource from a set of SR configurations according to the second SR configuration identifier.
  • the method provided in the embodiment of the present application may further include:
  • Step 905 When the configuration authorization is not activated, the first terminal 20 triggers the second SR; or when the configuration authorization is not activated and the first terminal 20 does not have available sidelink resources, the first terminal 20 triggers the second SR .
  • the side link resources for which the first side link CSI report is not transmitted may include one of the following three situations:
  • the first terminal 20 does not have any sidelink resources. 2) Although the first terminal 20 has a sidelink resource, the sidelink resource cannot be used to transmit the side link CSI report. 3) The first terminal 20 has a sidelink resource, but the sidelink resource cannot accommodate the first signaling carrying the sidelink CSI report and the header of the first signaling.
  • Step 906 The first terminal 20 sends a second SR to the base station on the second SR resource according to the second SR configuration, so that the base station receives the second SR from the first terminal 20.
  • the base station determines that the second SR is derived from the second SR resource and/or adopts the second SR configuration, the base station determines that the first terminal 20 is used to request the activation configuration authorization.
  • Step 907 The base station sends an activation command to the first terminal 20, so that the first terminal 20 receives the activation command.
  • the activation command carries information about the side link resource corresponding to the configuration authorization.
  • the activation command indicates to the first terminal 20 the resource locations of the time domain and frequency domain of the side link resource corresponding to the configuration authorization.
  • step 401 in the embodiment of the present application can be specifically implemented through the following step 908:
  • Step 908 When the first side uplink CSI report is triggered, the first terminal 20 determines the first side uplink resource according to the activation command and the period of the configuration authorization indication.
  • the first terminal 20 may determine the next side link resource after the first side link resource activated by the activation command as the first side link resource.
  • Step 909 is the same as the specific implementation of step 402, and will not be repeated here.
  • the first terminal can omit the process of sending the second SR.
  • the first terminal 20 can directly follow the activated second type of configuration.
  • the specific process can refer to the process in Example 2-1 in which the first terminal 20 authorizes the first side uplink resource according to the first type of configuration, which will not be repeated here.
  • the side link resource 1 indicated by the base station to the first terminal 20 through an activation command is shown in FIG. 10, one of two adjacent side link resources 1 The interval is T. If the first activated side link resource is the side link resource 1 between t1 and t2, the first terminal 20 can determine the side link resource 1 starting from t2+T. Determined as the first side uplink resource.
  • the second type of configuration authorization in Example 2-2 is used to determine the side link resource for the first terminal 20 to send the side link CSI report . If the first message carries the identity of the second terminal, the second type of configuration authorization is used to determine the side link CSI report sent by the first terminal 20 to the second terminal 30.
  • the first terminal 20 in addition to the second SR, if the first terminal 20 also triggers SR2 of the logical channel carried by other sidelink radios, and the SR resource associated with SR2 is related to the second SR resource associated with the second SR in time If overlapped, then the first terminal 20 preferentially sends SR1, or the first terminal 20 preferentially sends the second SR. Or, the first terminal 20 compares the priority of SR1 with the priority of the second SR, and sends the SR with the higher priority first.
  • the embodiment shown in FIG. 9 may further include: step 910 to step 915, and for specific steps 910 to step 915, reference may be made to the description in step 612 to step 617, which will not be repeated here.
  • the second indication information may have the following two optional meanings:
  • the first meaning used to indicate that the first terminal 20 no longer needs the second type of configuration authorization configured for the first terminal 20 and the second SR configuration and the second resource associated with the second SR configuration identifier.
  • the method provided in the embodiment of the present application further includes: step 608 and step 609, and/or step 610.
  • each network element such as the first terminal 20, the base station, etc.
  • each network element includes a hardware structure and/or software module corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the first terminal 20 and the base station may be divided into functional units according to the foregoing method examples.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 11 shows a communication device involved in the foregoing embodiment, and the communication device may include: a communication unit 102 and a processing unit 101.
  • the communication device is a first terminal or a chip applied in the first terminal.
  • the processing unit 101 is configured to support the communication device to execute the steps performed by the first terminal in step 401 in the foregoing embodiment.
  • the communication unit 102 is configured to support the communication device to execute step 402 executed by the first terminal in the foregoing embodiment.
  • the processing unit 101 is further configured to support the communication device to perform step 502, step 701, step 705, step 604, step 604a, step 604b, step 604c, step 607, and step 608 in the foregoing embodiment. , Step 609, step 610, step 612, step 613, step 614, step 616, step 905, step 908.
  • the communication unit 102 is used to support the communication device to perform the actions received by the first terminal in step 501, step 702, step 704, step 603, step 606, step 803, step 903, step 904, step 907, step 601 , Step 602, step 703, step 605, step 615, step 617, step 906 sent by the first terminal.
  • the communication device is a base station or a chip applied in the base station.
  • the communication unit 101 is used to support the communication device to perform the actions performed by the base station in step 401 in the above-mentioned embodiment.
  • the processing unit 102 is configured to support the communication device to perform actions other than sending and receiving information.
  • the communication unit 102 is also used for the communication device to execute the actions received by the base station in step 601, step 602, step 605, step 606, step 617, and step 906 in the above-mentioned embodiment, and step 603, The actions sent by the base station in step 803, step 903, step 904, and step 907.
  • FIG. 12 shows a schematic diagram of a possible logical structure of the communication device involved in the foregoing embodiment.
  • the communication device includes: a processing module 112 and a communication module 113.
  • the processing module 112 is used to control and manage the actions of the communication device.
  • the processing module 112 is used to perform information/data processing steps on the communication device.
  • the communication module 113 is used to support the communication device to send or receive information/data.
  • the communication device may further include a storage module 111 for storing program codes and data that can be used by the communication device.
  • the communication device is a first terminal or a chip applied in the first terminal.
  • the processing module 112 is configured to support the communication device to execute the steps executed by the first terminal in step 401 in the foregoing embodiment.
  • the communication module 113 is configured to support the communication device to execute step 402 executed by the first terminal in the foregoing embodiment.
  • the processing module 112 is also used to support the communication device to perform step 502, step 701, step 705, step 604, step 604a, step 604b, step 604c, step 607, and step 608 in the above-mentioned embodiment. , Step 609, step 610, step 612, step 613, step 614, step 616, step 905, step 908.
  • the communication module 113 is used to support the communication device to execute the actions received by the first terminal in step 501, step 702, step 704, step 603, step 606, step 803, step 903, step 904, step 907, step 601 , Step 602, step 703, step 605, step 615, step 617, step 906 sent by the first terminal.
  • the communication device is a base station or a chip applied in the base station.
  • the communication unit 101 is used to support the communication device to perform the actions performed by the base station in step 401 in the above-mentioned embodiment.
  • the processing unit 102 is configured to support the communication device to perform actions other than sending and receiving information.
  • the communication module 113 is also used for the communication device to execute the actions received by the base station in step 601, step 602, step 605, step 606, step 617, and step 906 in the above-mentioned embodiment, and step 603, The actions sent by the base station in step 803, step 903, step 904, and step 907.
  • the processing module 112 may be a processor or a controller, for example, a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, Hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of this application.
  • the processor may also be a combination that implements computing functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on.
  • the communication module 113 may be a transceiver, a transceiver circuit, or a communication interface.
  • the storage module 111 may be a memory.
  • the processing module 112 is the processor 31 or the processor 35
  • the communication module 113 is the communication interface 33
  • the storage module 111 is the memory 32
  • the communication device involved in this application may be the communication device shown in FIG. 3.
  • FIG. 13 is a schematic structural diagram of a chip 150 provided by an embodiment of the present application.
  • the chip 150 includes one or more (including two) processors 1510 and a communication interface 1530.
  • the chip 150 further includes a memory 1540.
  • the memory 1540 may include a read-only memory and a random access memory, and provides operation instructions and data to the processor 1510.
  • a part of the memory 1540 may also include a non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the memory 1540 stores the following elements, execution modules or data structures, or their subsets, or their extended sets.
  • the corresponding operation is executed by calling the operation instruction stored in the memory 1540 (the operation instruction may be stored in the operating system).
  • the first terminal and the chip used in the base station have similar structures, and different devices can use different chips to realize their respective functions.
  • the processor 1510 controls the processing operations of any one of the first terminal and the base station.
  • the processor 1510 may also be referred to as a central processing unit (CPU).
  • the memory 1540 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1510. A part of the memory 1540 may also include NVRAM.
  • the memory 1540, the communication interface 1530, and the memory 1540 are coupled together by a bus system 1520, where the bus system 1520 may include a power bus, a control bus, and a status signal bus in addition to a data bus.
  • bus system 1520 may include a power bus, a control bus, and a status signal bus in addition to a data bus.
  • various buses are marked as the bus system 1520 in FIG. 13.
  • the method disclosed in the foregoing embodiments of the present application may be applied to the processor 1510 or implemented by the processor 1510.
  • the processor 1510 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor 1510 or instructions in the form of software.
  • the above-mentioned processor 1510 may be a general-purpose processor, a digital signal processing (digital signal processing, DSP), an ASIC, an off-the-shelf programmable gate array (field-programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistors. Logic devices, discrete hardware components.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory 1540, and the processor 1510 reads the information in the memory 1540, and completes the steps of the foregoing method in combination with its hardware.
  • the communication interface 1530 is used to perform the steps of receiving and sending by the first terminal and the base station in the embodiment shown in FIG. 4 to FIG. 9.
  • the processor 1510 is configured to execute the processing steps of the first terminal and the base station in the embodiment shown in FIG. 4 to FIG. 9.
  • the above communication unit may be a communication interface of the device for receiving signals from other devices.
  • the communication unit is a communication interface for the chip to receive signals or send signals from other chips or devices.
  • a computer-readable storage medium stores instructions. When the instructions are executed, the functions of the first terminal as shown in Figs. 4-9 are realized.
  • a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium.
  • the instructions are executed, the functions of the base station as shown in FIGS. 4-9 are realized.
  • a computer program product including instructions.
  • the computer program product includes instructions. When the instructions are executed, the functions of the first terminal as shown in FIGS. 4-9 are realized.
  • a computer program product including instructions.
  • the computer program product includes instructions. When the instructions are executed, the functions of the base station as shown in FIGS. 4-9 are realized.
  • a chip is provided.
  • the chip is used in a first terminal.
  • the chip includes at least one processor and a communication interface.
  • the communication interface is coupled to the at least one processor. The function of the first terminal.
  • a chip is provided.
  • the chip is applied to a first network management unit.
  • the chip includes at least one processor and a communication interface.
  • the communication interface is coupled to the at least one processor. -The function of the base station in Figure 9.
  • An embodiment of the present application provides a communication system, which includes: a first terminal and a base station.
  • the first terminal is used to perform any step performed by the first terminal in FIGS. 4-9
  • the base station is used to perform any step performed by the base station in any one of FIGS. 4-9.
  • the communication system may further include: a second terminal.
  • the second terminal is used to perform the steps performed by the second terminal in FIGS. 4-9.
  • the above-mentioned embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer programs or instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, network equipment, user equipment, or other programmable devices.
  • the computer program or instruction may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer program or instruction may be downloaded from a website, computer, The server or data center transmits to another website site, computer, server or data center through wired or wireless means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that integrates one or more available media.
  • the usable medium may be a magnetic medium, such as a floppy disk, a hard disk, and a magnetic tape; it may also be an optical medium, such as a digital video disc (digital video disc, DVD); and it may also be a semiconductor medium, such as a solid state drive (solid state drive). , SSD).

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Abstract

本申请实施例提供一种侧行链路信道状态信息报告的发送方法、装置及系统，用以避免终端没有用以反馈CSI的可用侧行链路资源的情况发生。该方案包括：在第一侧行链路信道状态信息CSI报告被触发的情况下，第一终端获取基站为所述第一终端配置的第一侧行链路资源；其中，所述第一侧行链路资源可用于传输侧行链路CSI报告。第一终端在所述第一侧行链路资源上向所述第二终端发送所述第一侧行链路CSI报告，所述第一侧行链路CSI报告用于反映所述第一终端和第二终端之间的侧行链路的CSI。该方案可以适用于无人驾驶、自动驾驶、辅助驾驶、智能驾驶、网联驾驶、智能网联驾驶、汽车共享、人工智能等领域。

Description

一种侧行链路信道状态信息报告的发送方法、装置及系统
本申请要求于2019年11月08日提交国家知识产权局、申请号为201911090524.3、申请名称为“一种侧行链路信道状态信息报告的发送方法、装置及系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信技术领域，尤其涉及一种侧行链路信道状态信息报告的发送方法、装置及系统。
背景技术
在新空口(new radio，NR)V2X中，对于单播通信，为了让终端1可以根据侧行链路(sidelink)的信道状态信息(channel status information，CSI)来设置传输数据时所使用的调制编码方式，引入了sidelink的CSI反馈机制。其中，一种反馈机制如图1所示，终端2向终端1发送CSI触发指示，终端1收到该触发指示后，向终端2反馈CSI。
为了传输包含向终端2反馈的CSI，终端1首先需要获取sidelink资源。但是当终端1在无线资源控制(radio resource control，RRC)连接态并且基站配置终端1采用基于基站调度的资源分配方式进行侧行链路通信的情况下，目前现有技术中不存在用于获取传输CSI的sidelink资源的方法。
目前现有技术中终端1可以利用向终端2发送侧行链路数据的sidelink资源1来发送CSI。终端1可以通过如下方式请求sidelink资源1：
当终端1需要向终端2发送侧行链路数据时，终端1可以通过触发sidelink缓存状态报告(Buffer Status Report，BSR)和调度请求(Scheudling Request，SR)来向基站请求sidelink资源1。而这样会有如下的问题：
如果终端1没有侧行链路数据需要发送给终端2，会导致终端1无法获取sidelink资源1来传输CSI。或者，终端1具有侧行链路资源1，但是侧行链路资源1无法满足该CSI允许的最大传输时延的要求，则终端1在侧行链路资源1上向终端2发送的CSI将不具有参考价值。
基于此，终端1如何获取sidelink资源来传输CSI是亟需解决的技术问题。
发明内容
本申请实施例提供一种侧行链路信道状态信息报告的发送方法、装置及系统，用以避免终端没有用以反馈CSI的可用侧行链路资源的情况发生。
为达到上述目的，本申请采用如下技术方案：
第一方面，提供一种侧行链路信道状态信息CSI报告的发送方法，包括：在第一侧行链路信道状态信息CSI报告被触发的情况下，第一终端获取基站为第一终端配置的可用于传输侧行链路CSI报告的第一侧行链路资源。第一终端在第一侧行链路资源上向第二终端发送第一侧行链路CSI报告。其中，第一侧行链路CSI报告用于第一终 端向第二终端反馈第一终端和第二终端之间的侧行链路的CSI。
本申请实施例提供一种侧行链路信道状态信息CSI报告的发送方法，该方法中在第一侧行链路信道状态信息CSI报告被触发的情况下，第一终端通过获取基站为第一终端配置的用于发送侧行链路CSI报告的第一侧行链路资源，这样第一终端可以及时在第一侧行链路资源上向第二终端发送第一侧行链路CSI报告，以便第二终端根据第一终端和第二终端之间的侧行链路的CSI及时设置侧行链路数据的调制编码方式。该方法可以避免现有技术中由于没有用以反馈CSI的可用侧行链路资源的情况发生。
在一种可能的设计中，在第一侧行链路信道状态信息CSI报告被触发的情况下，本申请实施例提供的方法还包括：在满足预设条件时，第一终端触发第一调度请求SR。第一终端根据第一SR配置在第一SR资源上向基站发送第一SR，第一SR配置和第一SR资源对应用于请求传输侧行链路CSI报告的侧行链路资源的SR。当第一终端需要反馈CSI，而第一终端没有可用的侧行链路资源时，通过发送第一SR，第一终端可以及时获取到发送第一侧行链路CSI报告的侧行链路资源。
在一种可能的设计中，该第一SR配置和第一SR资源可以为协议预定义的。
在一种可能的设计中，预设条件包括以下一个或多个：第一终端没有传输第一侧行链路CSI报告的侧行链路资源。或者，第一终端触发侧行链路缓存状态报告BSR，但没有传输侧行链路BSR的上行资源。或者，若第一终端没有传输第一侧行链路CSI报告的侧行链路资源，第一终端触发侧行链路缓存状态报告BSR，但没有传输侧行链路BSR的上行链路资源。使得第一终端触发第一SR的条件更加灵活。
在一种可能的设计中，第一终端根据第一SR配置在第一SR资源上向基站发送第一SR之前，本申请实施例提供的方法还包括：第一终端接收来自基站的第二消息，第二消息包括第一SR配置标识，第一SR配置标识与第一SR配置和第一SR资源关联。可以实现基站为第一终端动态配置第一SR配置和第一SR资源。
在一种可能的设计中，第二消息中还可以包括第一SR配置和第一SR资源的信息。第一SR资源的信息用于确定第一SR资源的位置。
在一种可能的设计中，本申请实施例提供的方法还包括：在第一侧行链路CSI报告被触发的情况下，第一终端开启第一计时器。在第一计时器超时的情况下，如果满足第一条件，第一终端取消第一侧行链路CSI报告。
其中，第一条件包括以下一个或多个：第一终端未接收到第一侧行链路资源；或者，第一终端未生成包含第一侧行链路CSI报告的媒体接入控制协议数据单元MAC PDU；或者，第一终端未发送包含第一侧行链路CSI报告的MAC PDU。计时器超时表明已达到发送第一侧行链路CSI报告的最大允许时延，如果继续向第二终端发送第一侧行链路CSI报告，该第一侧行链路CSI报告对第二终端也可能没有参考价值，因此第一终端取消第一侧行链路CSI报告可以避免信令浪费。
在一种可能的设计中，本申请实施例提供的方法还包括：在第一计时器运行期间，如果满足第二条件，第一终端停止第一计时器。其中，第二条件包括以下一个或多个：第一终端接收到第一侧行链路资源；或者，第一终端生成包含第一侧行链路CSI报告的MAC PDU；或者，第一终端已发送包含第一侧行链路CSI报告的MAC PDU。第一计时器运行期间指第一计时器在配置的时长内处于开启状态。
在一种可能的设计中，在第一侧行链路信道状态信息CSI报告被触发的情况下，本申请实施例提供的方法还包括：第一终端接收来自基站的配置授权。该配置授权用于第一终端确定基站为第一终端配置的可用于传输侧行链路CSI报告的侧行链路资源。通过为第一终端发送配置授权，这样当第一终端确定有反馈CSI的可能性时，使得第一终端能够提前获取用于发送侧行链路CSI报告的侧行链路资源。当第一终端被触发反馈CSI时，第一终端可以通过已经获取到的侧行链路资源来发送第一侧行链路CSI报告，另外也可以避免第一终端没有可用侧行链路资源反馈CSI的情况发生。
在一种可能的设计中，配置授权用于指示为第一终端配置的一个或多个侧行链路资源的信息。一个或多个侧行链路资源可用于传输侧行链路CSI报告。第一侧行链路资源为一个或多个侧行链路资源中的侧行链路资源。该方式在第一终端触发第一侧行链路CSI报告的情况下，通过配置授权可以使得第一终端可以提前获取用于发送侧行链路CSI报告的侧行链路资源。
在一种可能的设计中，配置授权用于指示为第一终端配置的第二侧行链路资源的周期，在第一侧行链路信道状态信息CSI报告被触发的情况下，本申请实施例提供的方法还包括：若配置授权未激活，第一终端触发第二调度请求SR。第一终端根据第二SR配置在第二SR资源上向基站发送第二SR，第二SR配置和第二SR资源对应于用于请求激活配置授权的SR。该方法可以使得第一终端确定需要发送侧行链路CSI报告时，通过激活配置授权以获取发送侧行链路CSI报告的侧行链路资源。
在一种可能的设计中，该第二SR配置和第二SR资源可以为协议预定义的。
在一种可能的设计中，第一终端向根据第二SR配置在第二SR资源上向基站发送第二SR之前，本申请实施例提供的方法还包括：第一终端接收来自基站的第二SR配置标识。该第二SR配置标识关联第二SR配置和第二SR资源。
在一种可能的设计中，本申请实施例提供的方法还包括：第一终端接收来自基站的第二SR配置和第二SR资源的信息。
在一种可能的设计中，在第一侧行链路信道状态信息CSI报告被触发之前，本申请实施例提供的方法还包括：第一终端向基站发送包括第一指示信息的第一消息。该第一指示信息用于指示第一终端需要传输侧行链路CSI报告。这样便于基站确定第一终端需要传输侧行链路CSI报告，从而为第一终端配置用于获取第一侧行链路资源的信息。例如，用于获取第一侧行链路资源的信息可以为第一侧行链路资源的信息。用于获取第一侧行链路资源的信息可以为配置授权。
在一种可能的设计中，第一消息还包括辅助信息集合。该辅助信息集合包含如下信息中的至少一项：第一侧行链路CSI报告的最大允许时延，第一侧行链路CSI报告的HARQ反馈的配置信息，第一侧行链路CSI报告的最大重传次数，传输第一侧行链路CSI报告的第一信令的长度，第一侧行链路CSI报告的周期和时间偏移值。可以辅助基站为第一终端配置第一侧行链路资源。
在一种可能的设计中，本申请实施例提供的方法还包括：在侧行链路逻辑信道优先级处理过程中，第一终端确定承载第一侧行链路CSI报告的第一信令的优先级为最高优先级，或者第一信令的优先级为第一优先级。
在一种可能的设计中，本申请实施例提供的方法还包括：当第一终端发送包含第 一信令的MAC PDU的时刻与第一终端的第一制式的侧行链路通信的时刻冲突，第一终端发送包括第一信令的MAC PDU；或者，第一终端根据第一信令的第二优先级确定是否发送包括第一信令的MAC PDU，第一信令包括第一侧行链路CSI报告。
在一种可能的设计中，本申请实施例提供的方法还包括：第一终端向第二终端发送第二指示信息，该第二指示信息用于指示第二终端不发送HARQ信息，或者，第二指示信息指示第二终端发送HARQ信息。HARQ信息针对包含第一侧行链路CSI报告的MAC PDU。
在一种可能的设计中，在满足以下第三条件时，第二指示信息指示第二终端不发送HARQ信息；第三条件包括以下一个或多个：包含第一侧行链路CSI报告的MAC PDU被配置为不支持反馈HARQ信息，或，第一侧行链路CSI报告不支持反馈HARQ信息，或，基站配置包含第一侧行链路CSI报告的MAC PDU不支持反馈HARQ信息。
在一种可能的设计中，在满足以下第四条件时，第二指示信息指示第二终端发送HARQ信息；第四条件包括以下一个或多个：包含第一侧行链路CSI报告的MAC PDU被配置为支持反馈HARQ信息，或，第一侧行链路CSI报告支持反馈HARQ信息，或，基站配置包含第一侧行链路CSI报告的MAC PDU支持反馈HARQ信息。
在一种可能的设计中，包含第一侧行链路CSI报告的MAC PDU还包括承载在第一侧行链路逻辑信道的侧行链路数据，第三条件还包括：包含第一侧行链路CSI报告的MAC PDU包括的第一侧行链路逻辑信道和第一信令的优先级中优先级最高的不支持反馈HARQ信息。第四条件还包括：第一侧行链路逻辑信道的优先级和第一信令的优先级中优先级最高的支持反馈HARQ信息。
第二方面，本申请实施例提供一种侧行链路信道状态信息报告的发送方法，包括：基站向第一终端发送为第一终端配置的第一侧行链路资源；其中，第一侧行链路资源可用于传输侧行链路CSI报告。
在一种可能的设计中，基站向第一终端发送为第一终端配置的第一侧行链路资源之前，本申请实施例提供的方法还包括：基站接收来自第一终端在第一调度请求SR资源上发送的第一SR，第一SR对应第一SR配置，第一SR配置和第一SR资源对应用于请求传输侧行链路CSI报告的侧行链路资源的SR。
在一种可能的设计中，基站接收来自第一终端在第一调度请求SR资源上发送的第一SR之前，本申请实施例提供的方法还包括：基站向第一终端发送包括第一SR配置标识的第二消息。其中，第一SR配置标识与第一SR配置和第一SR资源关联。
在一种可能的设计中，基站向第一终端发送为第一终端配置的第一侧行链路资源，包括：基于第一SR，基站向第一终端发送第一侧行链路资源的信息。其中，第一侧行链路资源的信息用于确定第一侧行链路资源的时域资源位置和频域资源位置。
在一种可能的设计中，基站向第一终端发送为第一终端配置的第一侧行链路资源之前，本申请实施例提供的方法还包括：基站向第一终端发送配置授权。配置授权用于第一终端确定基站为第一终端配置的可用于传输侧行链路CSI报告的侧行链路资源。
在一种可能的设计中，配置授权用于指示为第一终端配置的一个或多个侧行链路资源的信息；一个或多个侧行链路资源可用于传输侧行链路CSI报告。第一侧行链路 资源为一个或多个侧行链路资源中的侧行链路资源。
在一种可能的设计中，配置授权用于指示为第一终端配置的第二侧行链路资源的周期，本申请实施例提供的方法还包括：基站接收来自第一终端在第二SR资源上发送的第二SR。该第二SR对应第二SR配置，第二SR配置和第二SR资源对应于用于请求激活配置授权的SR。
在一种可能的设计中，基站接收来自第一终端在第二SR资源上发送的第二SR之前，本申请实施例提供的方法还包括：基站向第一终端发送第二SR配置标识，第二SR配置标识关联第二SR配置和第二SR资源。
在一种可能的设计中，基站向第一终端发送为第一终端配置的第一侧行链路资源之前，本申请实施例提供的方法还包括：基站接收来自第一终端的包括第一指示信息的第一消息。第一指示信息用于指示第一终端需要传输侧行链路CSI报告。
在一种可能的设计中，第一消息还包括辅助信息集合。该辅助信息集合包含如下信息中的至少一项：第一侧行链路CSI报告的最大允许时延，第一侧行链路CSI报告的HARQ反馈的配置信息，第一侧行链路CSI报告的最大重传次数，传输第一侧行链路CSI报告的第一信令的长度，第一侧行链路CSI报告的周期和时间偏移值。这样基站可以辅助信息集合中的参数为第一终端配置第一侧行链路资源。
第三方面，本申请提供一种通信装置，该通信装置可以实现第一方面或第一方面的任意可能的实现方式中的方法，因此也能实现第一方面或第一方面任意可能的实现方式中的有益效果。该通信装置可以为第一终端，也可以为可以支持第一终端实现第一方面或第一方面的任意可能的实现方式中的方法的装置，例如应用于第一终端中的芯片。该装置可以通过软件、硬件、或者通过硬件执行相应的软件实现上述方法。
一种示例，该通信装置，包括：处理单元和通信单元，通信单元，用于收发信息。处理单元，用于处理除收发信息以外的动作。
具体的，在第一侧行链路信道状态信息CSI报告被触发的情况下，处理单元用于获取基站为该装置配置的可用于传输侧行链路CSI报告的第一侧行链路资源。通信单元在第一侧行链路资源上向第二终端发送第一侧行链路CSI报告。其中，第一侧行链路CSI报告用于通信单元向第二终端反馈该装置和第二终端之间的侧行链路的CSI。
在一种可能的设计中，在第一侧行链路信道状态信息CSI报告被触发的情况下，处理单元还用于在满足预设条件时，触发第一调度请求SR。通信单元，用于根据第一SR配置在第一SR资源上向基站发送第一SR，第一SR配置和第一SR资源对应用于请求传输侧行链路CSI报告的侧行链路资源的SR。
在一种可能的设计中，该第一SR配置和第一SR资源可以为协议预定义的。
在一种可能的设计中，预设条件包括以下一个或多个：该装置没有传输第一侧行链路CSI报告的侧行链路资源。或者，处理单元触发侧行链路缓存状态报告BSR，但没有传输侧行链路BSR的上行资源。或者，若所述装置没有传输第一侧行链路CSI报告的侧行链路资源，处理单元触发侧行链路缓存状态报告BSR，但没有传输侧行链路BSR的上行链路资源。
在一种可能的设计中，通信单元用于根据第一SR配置在第一SR资源上向基站发送第一SR之前，通信单元还用于接收来自基站的第二消息，第二消息包括第一SR配 置标识，第一SR配置标识与第一SR配置和第一SR资源关联。
在一种可能的设计中，第二消息中还可以包括第一SR配置和第一SR资源的信息。第一SR资源的信息用于确定第一SR资源的位置。
在一种可能的设计中，在第一侧行链路CSI报告被触发的情况下，处理单元，还用于开启第一计时器。在第一计时器超时的情况下，如果满足第一条件，处理单元，还用于取消第一侧行链路CSI报告。
其中，第一条件包括以下一个或多个：处理单元未接收到第一侧行链路资源；或者，处理单元未生成包含第一侧行链路CSI报告的媒体接入控制协议数据单元MAC PDU；或者，通信单元未发送包含第一侧行链路CSI报告的MAC PDU。计时器超时表明已达到发送第一侧行链路CSI报告的最大允许时延，如果继续向第二终端发送第一侧行链路CSI报告，该第一侧行链路CSI报告对第二终端也可能没有参考价值，因此第一终端取消第一侧行链路CSI报告可以避免信令浪费。
在一种可能的设计中，在第一计时器运行期间，如果满足第二条件，处理单元还用于停止第一计时器。其中，第二条件包括以下一个或多个：通信单元接收到第一侧行链路资源；或者，处理单元生成包含第一侧行链路CSI报告的MAC PDU；或者，处理单元已发送包含第一侧行链路CSI报告的MAC PDU。第一计时器运行期间指第一计时器在配置的时长内处于开启状态。
在一种可能的设计中，在第一侧行链路信道状态信息CSI报告被触发的情况下，通信单元，还用于接收来自基站的配置授权。该配置授权用于该装置确定基站为该装置配置的可用于传输侧行链路CSI报告的侧行链路资源。
在一种可能的设计中，配置授权用于指示为该装置配置的一个或多个侧行链路资源的信息。一个或多个侧行链路资源可用于传输侧行链路CSI报告。第一侧行链路资源为一个或多个侧行链路资源中的侧行链路资源。
在一种可能的设计中，配置授权用于指示为该装置配置的第二侧行链路资源的周期，若配置授权未激活，在第一侧行链路信道状态信息CSI报告被触发的情况下，处理单元，还用于触发第二调度请求SR。通信单元，用于根据第二SR配置在第二SR资源上向基站发送第二SR，第二SR配置和第二SR资源对应于用于请求激活配置授权的SR。
在一种可能的设计中，该第二SR配置和第二SR资源可以为协议预定义的。
在一种可能的设计中，通信单元，用于根据第二SR配置在第二SR资源上向基站发送第二SR之前，通信单元，还用于接收来自基站的第二SR配置标识。该第二SR配置标识关联第二SR配置和第二SR资源。
在一种可能的设计中，通信单元，还用于接收来自基站的第二SR配置和第二SR资源的信息。
在一种可能的设计中，在第一侧行链路信道状态信息CSI报告被触发的情况下，通信单元，还用于向基站发送包括第一指示信息的第一消息。该第一指示信息用于指示该装置需要传输侧行链路CSI报告。
在一种可能的设计中，第一消息还包括辅助信息集合。该辅助信息集合包含如下信息中的至少一项：第一侧行链路CSI报告的最大允许时延，第一侧行链路CSI报告 的HARQ反馈的配置信息，第一侧行链路CSI报告的最大重传次数，传输第一侧行链路CSI报告的第一信令的长度，第一侧行链路CSI报告的周期和时间偏移值。
在一种可能的设计中，在侧行链路逻辑信道优先级处理过程中，处理单元，还用于确定承载第一侧行链路CSI报告的第一信令的优先级为最高优先级，或者第一信令的优先级为第一优先级。
在一种可能的设计中，当通信单元发送包含第一信令的MAC PDU的时刻与该通信装置的第一制式的侧行链路通信的时刻冲突，通信单元用于发送包含第一信令的MAC PDU；或者，处理单元，用于根据第一信令的第二优先级确定是否发送包含第一信令的MAC PDU，第一信令包括第一侧行链路CSI报告。
在一种可能的设计中，通信单元，还用于向第二终端发送第二指示信息，该第二指示信息用于指示第二终端不发送针对HARQ信息，或者，第二指示信息指示第二终端发送HARQ信息，HARQ信息针对包含第一侧行链路CSI报告的MAC PDU。
一种可能的设计中，在满足以下第三条件时，第二指示信息指示第二终端不发送针对MAC PDU的HARQ信息第三条件包括以下一个或多个：包含第一侧行链路CSI报告的MAC PDU被配置为不支持反馈HARQ信息，或，第一侧行链路CSI报告不支持反馈HARQ信息，或，基站配置包含第一侧行链路CSI报告的MAC PDU不支持反馈HARQ信息。
在一种可能的设计中，在满足以下第四条件时，第二指示信息指示第二终端发送针对MAC PDU的HARQ信息；第四条件包括以下一个或多个：包含第一侧行链路CSI报告的MAC PDU被配置为支持反馈HARQ信息，或，第一侧行链路CSI报告支持反馈HARQ信息，或，基站配置包含第一侧行链路CSI报告的MAC PDU支持反馈HARQ信息。
在一种可能的设计中，包含第一侧行链路CSI报告的MAC PDU还包括承载在第一侧行链路逻辑信道的侧行链路数据，第三条件还包括：第一侧行链路逻辑信道和第一信令的优先级中优先级最高的不支持反馈HARQ信息。第四条件还包括：第一侧行链路逻辑信道的优先级和第一信令的优先级中优先级最高的支持反馈HARQ信息。
另一种示例，本申请实施例提供一种通信装置，该通信装置可以是第一终端，也可以是第一终端内的芯片。当该通信装置是第一终端时，该通信单元可以为收发器或者包括一个或多个具有收发信息功能的模块，该处理单元可以是处理器或者包括一个或多个具有处理能力的模块。该通信装置还可以包括存储单元。该存储单元可以是存储器。该存储单元，用于存储计算机程序代码，计算机程序代码包括指令。该处理单元执行该存储单元所存储的指令，以使该第一终端实现第一方面或第一方面的任意一种可能的实现方式中描述的一种侧行链路信道状态信息报告的发送方法。当该通信装置是第一终端内的芯片时，该处理单元可以是处理器，该通信单元可以统称为：通信接口。例如，通信接口可以为输入/输出接口、管脚或电路等。该处理单元执行存储单元所存储的计算机程序代码，以使该第一终端实现第一方面或第一方面的任意一种可能的实现方式中描述的一种侧行链路信道状态信息报告的发送方法，该存储单元可以是该芯片内的存储单元(例如，寄存器、缓存等)，也可以是该第一终端内的位于该芯片外部的存储单元(例如，只读存储器、随机存取存储器等)。
可选的，处理器、通信接口/收发器和存储器相互耦合。
第四方面，本申请提供一种通信装置，该通信装置可以实现第二方面或第二面的任意可能的实现方式中的方法，因此也能实现第二方面或第二方面任意可能的实现方式中的有益效果。该通信装置可以为基站，也可以为可以支持基站实现第二方面或第二方面的任意可能的实现方式中的方法的装置，例如应用于基站中的芯片。该装置可以通过软件、硬件、或者通过硬件执行相应的软件实现上述方法。
一种示例，本申请实施例提供的通信装置，包括：通信单元和处理单元，其中，处理单元用于处理除收发信息以外的动作，通信单元，用于向第一终端发送为第一终端配置的第一侧行链路资源；其中，第一侧行链路资源可用于传输侧行链路CSI报告。
在一种可能的设计中，通信单元，还用于接收来自第一终端在第一调度请求SR资源上发送的第一SR，第一SR对应第一SR配置，第一SR配置和第一SR资源对应用于请求传输侧行链路CSI报告的侧行链路资源的SR。
在一种可能的设计中，通信单元，还用于向第一终端发送包括第一SR配置标识的第二消息。其中，第一SR配置标识与第一SR配置和第一SR资源关联。
在一种可能的设计中，通信单元，还用于基于第一SR，向第一终端发送第一侧行链路资源的信息。其中，第一侧行链路资源的信息用于确定第一侧行链路资源的时域资源位置和频域资源位置。
在一种可能的设计中，通信单元，还用于向第一终端发送配置授权。配置授权用于第一终端确定为第一终端配置的可用于传输侧行链路CSI报告的侧行链路资源。
在一种可能的设计中，配置授权用于指示为第一终端配置的一个或多个侧行链路资源的信息；一个或多个侧行链路资源可用于传输侧行链路CSI报告。第一侧行链路资源为一个或多个侧行链路资源中的侧行链路资源。
在一种可能的设计中，配置授权用于指示为第一终端配置的第二侧行链路资源的周期，通信单元，还用于接收来自第一终端在第二SR资源上发送的第二SR。该第二SR对应第二SR配置，第二SR配置和第二SR资源对应于用于请求激活配置授权的SR。
在一种可能的设计中，通信单元，还用于向第一终端发送第二SR配置标识，第二SR配置标识关联第二SR配置和第二SR资源。
在一种可能的设计中，通信单元，还用于接收来自第一终端的包括第一指示信息的第一消息。第一指示信息用于指示第一终端需要传输侧行链路CSI报告。
在一种可能的设计中，第一消息还包括辅助信息集合。该辅助信息集合包含如下信息中的至少一项：第一侧行链路CSI报告的最大允许时延，第一侧行链路CSI报告的HARQ反馈的配置信息，第一侧行链路CSI报告的最大重传次数，传输第一侧行链路CSI报告的第一信令的长度，第一侧行链路CSI报告的周期和时间偏移值。
另一种示例，本申请实施例提供一种通信装置，该通信装置可以是基站，也可以是基站内的芯片。当该通信装置是基站时，该通信单元可以为收发器或者包括一个或多个具有收发信息功能的模块，该处理单元可以是处理器或者包括一个或多个具有处理能力的模块。该通信装置还可以包括存储单元。该存储单元可以是存储器。该存储单元，用于存储计算机程序代码，计算机程序代码包括指令。该处理单元执行该存储 单元所存储的指令，以使该基站实现第二方面或第二方面的任意一种可能的实现方式中描述的一种侧行链路信道状态信息报告的发送方法。当该通信装置是基站内的芯片时，该处理单元可以是处理器，该通信单元可以统称为：通信接口。例如，通信接口可以为输入/输出接口、管脚或电路等。该处理单元执行存储单元所存储的计算机程序代码，以使该基站实现第二方面或第二方面的任意一种可能的实现方式中描述的一种侧行链路信道状态信息报告的发送方法，该存储单元可以是该芯片内的存储单元(例如，寄存器、缓存等)，也可以是该基站内的位于该芯片外部的存储单元(例如，只读存储器、随机存取存储器等)。
可选的，处理器、通信接口/收发器和存储器相互耦合。
第五方面，本申请实施例提供一种计算机可读存储介质，计算机可读存储介质中存储有计算机程序或指令，当计算机程序或指令在计算机上运行时，使得计算机执行如第一方面至第一方面的任意一种可能的实现方式中描述的一种侧行链路信道状态信息报告的发送方法。
第六方面，本申请实施例提供一种计算机可读存储介质，计算机可读存储介质中存储有计算机程序或指令，当计算机程序或指令在计算机上运行时，使得计算机执行如第二方面至第二方面的任意一种可能的实现方式中描述的一种侧行链路信道状态信息报告的发送方法。
第七方面，本申请实施例提供一种包括指令的计算机程序产品，当指令在计算机上运行时，使得计算机执行第一方面或第一方面的各种可能的实现方式中描述的一种侧行链路信道状态信息报告的发送方法。
第八方面，本申请提供一种包括指令的计算机程序产品，当指令在计算机上运行时，使得计算机执行第二方面或第二方面的各种可能的实现方式中描述的一种侧行链路信道状态信息报告的发送方法。
第九方面，本申请实施例提供一种通信系统，该通信系统包括：第三方面或第三方面的任一种可能的设计描述的通信装置，以及第四方面或第四方面的任一种可能的设计描述的通信装置。
可选的，该通信系统还可以包括：第二终端。第二终端用于触发第一终端反馈CSI。
第十方面，本申请实施例提供一种通信装置，该通信装置包括处理器和存储介质，存储介质存储有指令，指令被处理器运行时，实现如第一方面或第一方面的各种可能的实现方式描述的一种侧行链路信道状态信息报告的发送方法。
第十一方面，本申请实施例提供一种通信装置，该通信装置包括处理器和存储介质，存储介质存储有指令，指令被处理器运行时，实现如第二方面或第二方面的各种可能的实现方式描述的一种侧行链路信道状态信息报告的发送方法。
第十二方面，本申请实施例提供一种通信装置，包括：至少一个处理器，至少一个处理器和存储器耦合，存储器用于存储计算机程序或指令，至少一个处理器用于执行存储器中的该计算机程序或指令，使得通信装置执行第一方面或第一方面的各种可能的实现方式中描述的一种侧行链路信道状态信息报告的发送方法。
第十三方面，本申请实施例提供一种通信装置，包括：至少一个处理器，至少一个处理器和存储器耦合，存储器用于存储计算机程序或指令，至少一个处理器用于执 行存储器中的该计算机程序或指令，使得通信装置执行第二方面或第二方面的各种可能的实现方式中描述的一种侧行链路信道状态信息报告的发送方法。
可选的，第十二方面或第十三方面描述的通信装置还包括：存储器。
第十四方面，本申请实施例提供了一种通信装置，该通信装置包括一个或者多个模块，用于实现上述第一方面、第二方面的方法，该一个或者多个模块可以与上述第一方面、第二方面的方法中的各个步骤相对应。
第十五方面，本申请实施例提供一种芯片，该芯片包括处理器和通信接口，通信接口和处理器耦合，处理器用于运行计算机程序或指令，以实现第一方面或第一方面的各种可能的实现方式中所描述的一种侧行链路信道状态信息报告的发送方法，通信接口用于与芯片之外的其它模块进行通信。
第十六方面，本申请实施例提供一种芯片，该芯片包括处理器和通信接口，通信接口和处理器耦合，处理器用于运行计算机程序或指令，以实现第二方面或第二方面的各种可能的实现方式中所描述的一种侧行链路信道状态信息报告的发送方法，通信接口用于与芯片之外的其它模块进行通信。
具体的，本申请实施例中提供的芯片还包括存储器，用于存储计算机程序或指令。
上述提供的任一种装置或计算机存储介质或计算机程序产品或芯片或通信系统均用于执行上文所提供的对应的方法，因此，其所能达到的有益效果可参考上文提供的对应的方法中对应方案的有益效果，此处不再赘述。
附图说明
图1为本申请实施例提供的一种CSI报告触发示意图；
图2为本申请实施例提供的一种通信系统的系统架构图；
图3为本申请实施例提供的一种通信设备的结构示意图；
图4-图9为本申请实施例提供的一种侧行链路信道状态信息报告的发送方法的流程示意图；
图10为本申请实施例提供的一种周期性侧行链路资源的示意图；
图11为本申请实施例提供的一种通信装置的结构示意图；
图12为本申请实施例提供的另一种通信装置的结构示意图；
图13为本申请实施例提供的一种芯片的结构示意图。
具体实施方式
为了便于清楚描述本申请实施例的技术方案，在本申请的实施例中，采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分。例如，第一终端和第一终端仅仅是为了区分不同的终端，并不对其先后顺序进行限定。本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”等字样也并不限定一定不同。
需要说明的是，本申请中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其他实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
本申请中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”， 描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b，c可以是单个，也可以是多个。
本申请的技术方案可以应用于各种通信系统，例如：长期演进(long time evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)系统、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、公共陆地移动网络(public land mobile network，PLMN)系统、设备对设备(device to device，D2D)网络系统或者机器对机器(machine to machine，M2M)网络系统以及未来的5G通信系统等。
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。本申请实施例中以提供的方法应用于NR系统或5G网络中为例进行说明。
在介绍本申请实施例之前，首先介绍本申请实施例中涉及到的名词：
1)、侧行链路(sidelink，SL)是指：针对终端和终端之间直接通信定义的。也即终端和终端之间不通过基站转发而通信的链路。
2)、sidelink资源是指：终端1在侧行链路上与终端2传输控制信息和数据的资源。
下面将结合附图，对本申请中的技术方案进行描述。
如图2所示，图2示出了本申请实施例提供的一种侧行链路信道状态信息报告的发送方法所应用的通信系统，该通信系统包括：一个或多个网络设备(比如图2所示的网络设备10)、一个或多个终端(比如图2所示的第一终端20，以及第二终端30)。在图2中以终端为车辆为例。
其中，第一终端20与网络设备10通信，第一终端20和第二终端30通信。当然，第二终端3也可以和网络设备10通信。
在一种可能的具体实现方式中，图2所示的通信系统还可以包括：核心网。网络设备10可以与该核心网连接。核心网可以是4G核心网(例如，核心分组网演进(evolved packet core，EPC))或者5G核心网(5G core，5GC)、或未来的各种通信系统中的核心网。以及路侧单元(road side unit，RSU)。RSU还可以为该系统中的各个终端提供各类服务信息和数据网络的接入，例如，以终端为车辆为例，例如，RSU还可以为该系统中的各个终端提供不停车收费、车内娱乐等功能都极大的提高了交通智能化。
以核心网可以是4G核心网为例，网络设备10可以为4G系统中的演进型基站(evolved Node B，eNB或eNodeB)。第一终端20为可以与eNB进行信息传输的终端。eNB通过S1接口接入EPC网。
以核心网可以5G核心网为例，网络设备10可以为NR系统中的下一代节点B(the next generation node B，gNB)，第一终端20为可以与gNB进行信息传输的终端。gNB通过NG接口接入5GC。
当然，网络设备10还可以为第三代合作伙伴计划(3rd generation partnership project，3GPP)协议基站，或者可以为非3GPP协议基站。
其中，网络设备10与第一终端20之间具有第一传输链路。例如，第一传输链路可以为Uu链路。第一终端20与第二终端30之间具有第二传输链路。例如，第二传输链路可以为侧行链路。Uu链路用于传输网络设备10向第一终端20发送的Uu业务(信息或数据)。
第一终端20与第二终端30可以在sidelink上彼此传输V2X业务，也可以称为侧行链路数据或者侧行链路控制信息(例如，下述的侧行链路CSI报告)。第一终端20可以在Uu链路上向网络设备10传输上行(uplink，UL)Uu业务，也可以在Uu链路上接收网络设备10发送的下行(downlink，DL)Uu业务。
其中，第一终端20与第二终端30通过直连通信的接口可以为接口1。例如接口1可以称为PC5接口，采用车联网专用频段(如5.9GHz)。第一终端20与网络设备10之间的接口可以称为接口2(例如，Uu接口)，采用蜂窝网频段(如1.8GHz)。PC5接口一般用于V2X，或者D2D等可以在设备间进行直连通信的场景。
上述接口1、接口2的名称仅是个示例，本申请实施例对接口1、接口2的名称不作限定。
如图2所示，图2示出了本申请实施例提供的一种场景，如图2所示，以第二终端30为标识为X的车辆(简称：车辆X)为例，如果车辆X决定执行超车操作，则车辆X可以向位于其前方的第一终端20(例如，标识为Y的车辆(简称：车辆Y))在侧行链路资源1上发送对话框50的中的侧行链路数据(例如，侧行链路数据可以为超车指示、车辆X的当前车速(例如，75km/h))，以便车辆Y接收到X的当前车速以及超车指示后，减速行驶，以使得X安全超车。但是，在第二终端30向第一终端20发送的侧行链路数据之前，第二终端30可以设置侧行链路数据所使用的调制编码方式。基于此，引入了sidelink的信道状态信息(Channel Status Information，CSI)反馈机制，即第二终端30通过侧行链路控制信息(Sidelink Channel Information，SCI)来触发第一终端20发送第一终端20和第二终端30之间的侧行链路的CSI。此外，第二终端30向第一终端20发送信道状态信息-参考信号(Channel Status Information-Reference Signal，CSI-RS)，用于第一终端20做测量来获取要反馈的CSI。
图2所示的场景仅为举例，其他终端之间通信的场景也适用于本申请方案。
通常情况下，V2X业务在sidelink上的sidelink资源上传输，Uu业务在Uu链路上的Uu资源上传输。
第一终端20或第二终端30，是一种具有无线通信功能的设备，可以部署在陆地上，包括室内或室外、手持或车载。也可以部署在水面上(如轮船等)。还可以部署在空中(例如飞机、气球和卫星上等)。终端又称之为用户设备(user equipment，UE)，移动台(mobile station，MS)、移动终端(mobile terminal，MT)以及终端设备等，是一种向用户提供语音和/或数据连通性的设备。例如，终端包括具有无线连接功能的 手持式设备、车载设备等。目前，终端可以是：手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备(例如智能手表、智能手环、计步器等)，车载设备(例如，汽车、自行车、电动车、飞机、船舶、火车、高铁等)、虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、智能家居设备(例如，冰箱、电视、空调、电表等)、智能机器人、车间设备、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端，或智慧家庭(smart home)中的无线终端、飞行设备(例如，智能机器人、热气球、无人机、飞机)等。本申请一种可能的应用的场景中终端设备为经常工作在地面的终端设备，例如车载设备。在本申请中，为了便于叙述，部署在上述设备中的芯片，例如片上系统(System-On-a-Chip，SOC)、基带芯片等，或者其他具备通信功能的芯片也可以称为终端。
第一终端20或第二终端30可以是具有相应通信功能的车辆，或者车载通信装置，或者其它嵌入式通信装置，也可以是用户手持通信设备，包括手机，平板电脑等。
以终端为车辆为例，目前车辆可以通过车辆与车辆之间通信(vehicle to vehicle，V2V)或者车辆与路边基础设施通信(vehicle to infrastructure，V2I)(例如，基础设施为路侧单元(road side unit，RSU))或者车辆与行人之间的通信(vehicle to pedestrian，V2P)或者车辆与网络通信(vehicle to network，V2N)来及时获取路况信息或接收信息服务，这些通信方式可以统称为V2X通信(其中，X代表任何事物)。上述通信通常将V2X通信所使用的网络成为车联网。
本申请实施例描述的各个方案应用于V2X场景时，可以适用于如下领域：无人驾驶(unmanned driving)、自动驾驶(automated driving/ADS)、辅助驾驶(driver assistance/ADAS)、智能驾驶(intelligent driving)、网联驾驶(connected driving)、智能网联驾驶(Intelligent network driving)、汽车共享(car sharing)。
作为示例，在本申请实施例中，该终端还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
网络设备10为与第一终端20配合使用的一种可以用于发射或接收信号的实体。例如，可以是WLAN中的接入点(access point，AP)，还可以是长期演进(long time evolution)LTE中的演进型基站(evolved Node B，eNB或eNodeB)，或者中继站或接入点，或者车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等。
另外，在本发明实施例中，网络设备为小区提供服务，终端通过该小区使用的传 输资源(例如，时域资源，或者，频域资源，或者，时频资源)与网络设备进行通信。该小区可以是网络设备(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(small cell)对应的基站，这里的小小区可以包括：城市小区(metro cell)、微小区(micro cell)、微微小区(Pico cell)、毫微微小区(femto cell)等，这些小小区具有覆盖范围小和发射功率低的特点，适用于提供高速率的数据传输服务。
图3示出了本申请实施例提供一种通信设备的硬件结构示意图。本申请实施例中的第一终端20、第二终端30以及网络设备10的硬件结构可以参考如图3所示的结构。该通信设备包括处理器31，通信线路34以及至少一个收发器(图3中仅是示例性的以包括收发器33为例进行说明)。
处理器31可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。
通信线路34可包括一通路，在上述组件之间传送信息。
收发器33，使用任何收发器一类的装置，用于与其他设备或通信网络通信，如以太网，无线接入网(radio access network，RAN)，无线局域网(wireless local area networks，WLAN)等。
可选的，该通信设备还可以包括存储器32。
存储器32可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过通信线路34与处理器相连接。存储器也可以和处理器集成在一起。
其中，存储器32用于存储执行本申请方案的计算机执行指令，并由处理器31来控制执行。处理器31用于执行存储器32中存储的计算机执行指令，从而实现本申请下述实施例提供的策略控制方法。
可选的，本申请实施例中的计算机执行指令也可以称之为应用程序代码，本申请实施例对此不作具体限定。
在具体实现中，作为一种实施例，处理器31可以包括一个或多个CPU，例如图3中的CPU0和CPU1。
在具体实现中，作为一种实施例，通信设备可以包括多个处理器，例如图3中的处理器31和处理器35。这些处理器中的每一个可以是一个单核(single-CPU)处理器，也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
为了传输V2X业务，终端需要获取sidelink资源，目前sidelink资源的分配方式有两种：
一种是基于网络设备10调度的资源分配方式，即由网络设备10为第一终端20调度用于传输sidelink数据或者sidelink控制信息的sidelink资源，也可以称为模式(mode)1。
另一种是第一终端20在资源池中自主选择资源的分配方式，即由第一终端20在网络设备10通过系统消息或者专用信令配置或者预配置的资源池中自主选择sidelink资源，以在自主选择的sidelink资源上传输sidelink数据或者sidelink控制信息。其中，资源池包括一个或多个侧行链路资源。
当第一终端20需要传输sidelink数据并且处于RRC连接态时，为了获取sidelink资源，第一终端20可以通过RRC消息向网络设备10上报通信对端终端(例如，第二终端30)的目的地标识，通信的传输方式(广播，组播，单播中的一种)以及要传输的sidelink数据的服务质量(quality of service，QoS)信息。网络设备10接收到RRC消息后，为第一终端20配置sidelink资源的资源分配方式，以及相关的sidelink通信的专用配置。sidelink通信的专用配置中包括sidelink无线承载的配置。如果网络设备10为第一终端20配置的资源分配方式为mode1，则网络设备10会为每个sidelink无线承载配置该无线承载映射的用于请求sidelink资源的调度请求(scheduling request，SR)配置和调度请求资源。其中，调度请求配置中包括该调度请求配置的标识，调度请求的最大传输次数和调度请求的禁止计时器。调度请求资源包括发送调度请求的物理层的时频域资源配置信息。当第一终端20有sidelink数据要发送时，会触发sidelink的BSR。如果第一终端20没有可用的上行(uplink，UL)资源来传输该sidelink BSR，第一终端20会进一步触发向网络设备10发送用于请求sidelink资源的SR。第一终端20通过对应的SR配置和SR资源来发送SR。这样网络设备10在接收到SR之后，可以为第一终端20分配sidelink资源。此外，为了让第一终端20可以发送sidelink BSR，基于SR网络设备10还可以为第一终端20分配uplink资源。
当第二终端30触发第一终端20反馈侧行链路CSI后，第一终端20通过媒体接入控制层控制信息(Medium Access Control Protocol Control Element，MAC CE)向第二终端30传输CSI。本申请实施例中的CSI可以指第一终端20和第二终端30之间侧行链路的CSI。
第一终端20可以在sidelink资源上向第二终端30发送包含CSI的MAC CE，也即为了发送包含CSI的MAC CE第一终端20首先要获取sidelink资源。但是第一终端20准备发送包含CSI的MAC CE时，有可能不具有sidelink资源。此外，虽然基于sidelink BSR请求的sidelink资源不仅可以传输侧行链路数据，也可以传输PC5接口的RRC层的控制信令，但是当需要传输MAC CE(媒体介入控制(Medium Access Control，MAC)层的控制信令时)，是无法触发BSR和SR来请求基站分配sidelink资源的。因此，当第一终端20需要发送包含侧行链路CSI的MAC CE时，如果第一终端20没有sidelink资源，基于上述sidelink的通信流程，第一终端20无法获取sidelink资源。因此，第一终端20可以等待第一终端20有sidelink数据需要发送时，通过触发sidelink BSR和SR来向基站请求sidelink资源。而这样会有如下的问题：
情况1：第一终端20没有数据需要发送给第二终端30。这样会导致第一终端20无法获取sidelink资源来传输CSI。
情况2：第一终端20在确定需要发送包含CSI的MAC CE后，如果在等待第一时长，第一终端20才有要发送给第二终端30的侧行链路数据到达，并且获取到了sidelink资源。但是，若该第一时长大于该CSI允许的最大传输时延的要求，那通过该Sidelink资源将包含CSI的MAC CE发送给第二终端30后，CSI对第二终端30选择用于数据传输的MCS也没有任何参考意义。
鉴于上述问题，下面结合图4至图10对本申请实施例提供的一种侧行链路信道状态信息CSI报告的发送方法进行详细说明。
需要说明的是，本申请下述实施例中各个网元之间的消息名字或消息中各参数的名字等只是一个示例，具体实现中也可以是其他的名字，本申请实施例对此不作具体限定。
需要指出的是，本申请各实施例之间可以相互借鉴或参考，例如，相同或相似的步骤，方法实施例、通信系统实施例和装置实施例之间，均可以相互参考，不予限制。
在本申请实施例中，一种侧行链路信道状态信息CSI报告的发送方法的执行主体的具体结构，本申请实施例并未特别限定，只要可以通过运行记录有本申请实施例的一种侧行链路信道状态信息CSI报告的发送方法的代码的程序，以根据本申请实施例的一种侧行链路信道状态信息CSI报告的发送方法进行通信即可，例如，本申请实施例提供的一种侧行链路信道状态信息CSI报告的发送方法的执行主体可以是第一终端中能够调用程序并执行程序的功能模块，或者为应用于第一终端中的通信装置，例如，芯片，本申请实施例提供的一种侧行链路信道状态信息CSI报告的发送方法的执行主体可以是基站中能够调用程序并执行程序的功能模块，或者为应用于基站中的通信装置，例如，芯片，本申请对此不进行限定。下述实施例以一种侧行链路信道状态信息CSI报告的发送方法的执行主体为第一终端为例进行描述。
如图4所示，图4示出了本申请实施例提供的一种侧行链路信道状态信息CSI报告的发送方法，该方法包括：
步骤401、在第一侧行链路信道状态信息CSI报告被触发的情况下，基站向第一终端20发送为第一终端20配置的第一侧行链路资源，以使得第一终端20获取基站为第一终端20配置的第一侧行链路资源。
例如，基站可以对应上述图2所示的通信系统中的网络设备10。
其中，第一侧行链路CSI报告用于第一终端20向第二终端30反馈第一终端20和第二终端30之间侧行链路的CSI。第一侧行链路资源可用于传输侧行链路CSI报告。
本申请实施例中关于第一侧行链路资源可以具有如下含义：含义1)、基站为第一终端20配置或分配的专门用于发送侧行链路CSI报告的侧行链路资源，也即第一终端20可以在第一侧行链路资源上发送任何侧行链路CSI报告，并不局限于发送第一侧行链路CSI报告。或者，含义2)、该第一侧行链路资源是专门为发送第一侧行链路CSI报告而配置或分配的。或者，含义3)、该第一侧行链路资源不仅可以发送侧行链路CSI报告，还可以发送除发送侧行链路CSI报告以外的其它sidelink数据或控制信息，本申请实施例对此不作限定。
综上描述，基站为第一终端20配置的第一侧行链路资源可用于第一终端20发送第一侧行链路CSI报告。
步骤402、第一终端20在第一侧行链路资源上向第二终端30发送第一侧行链路CSI报告，以使得第二终端30接收来自第一终端20的第一侧行链路CSI报告。
作为一种示例，本申请实施例中的第一侧行链路CSI报告可以携带在第一信令中。例如，第一信令可以为MAC CE。本申请实施例中的第一信令可以携带在媒体接入控制协议数据单元(medium access control protocol data unit，MAC PDU)中，也即MAC PDU中包括第一侧行链路CSI报告。本申请实施例中可以将包括第一侧行链路CSI报告的MAC PDU，或者包括第一信令的MAC PDU称作第一MAC PDU。下述将以第一MAC PDU描述。此处统一说明，后续不再赘述。
可以理解的是，在第一终端20获取到第一侧行链路资源之后，第一终端20便生成包含第一侧行链路CSI报告的第一信令，并且取消触发的第一侧行链路CSI报告。
本申请实施例提供一种侧行链路信道状态信息CSI报告的发送方法，该方法中在第一侧行链路信道状态信息CSI报告被触发的情况下，第一终端通过获取基站为第一终端配置的用于发送侧行链路CSI报告的第一侧行链路资源，这样第一终端可以及时在第一侧行链路资源上向第二终端发送第一侧行链路CSI报告，以便第二终端根据第一终端和第二终端之间的侧行链路的CSI及时设置侧行链路数据的调制编码方式。该方法可以避免现有技术中由于没有用以反馈CSI的可用侧行链路资源的情况发生。
作为一种可能的实施例，本申请实施例提供的方法在步骤401之前还可以包括：第一终端20触发第一侧行链路CSI报告。
关于第一终端20如何触发第一侧行链路CSI报告的实现过程可以参考下述图5中的描述。
如图5所示，本申请实施例提供一种触发第一侧行链路CSI报告的方法，该方法包括：
步骤501、第二终端30向第一终端20发送触发CSI反馈的指示信息，以使得第一终端20接收触发CSI反馈的指示信息。
具体的，该触发CSI反馈的指示信息可以包含在第二终端30发送给第一终端20的SCI中。
步骤502、第一终端20根据触发CSI反馈的指示信息触发第一侧行链路信道状态信息CSI报告。
作为一种具体的实现，第一终端20的物理层在接收到触发CSI反馈的指示信息后通知给第一终端20的MAC层。第一终端20的MAC层收到物理层的通知后，第一终端20的MAC层触发第一sidelink CSI报告。当第一sidelink CSI报告触发后，直到第一sidelink CSI报告被取消前，该第一sidelink CSI报告的状态都认为是待定的。
本申请实施例中第一终端20可以通过如图6～图8任一个描述的方式，获取基站为第一终端20配置的第一侧行链路资源，下面将分别描述：
示例1)、基站为第一终端20动态调度第一侧行链路资源。
当第一sidelink CSI报告被触发，第一终端20可以向基站发送第一SR和/或侧行链路(Sidelink Buffer Status Report，SL-BSR)以获取第一侧行链路资源。但是，在发送第一SR之前，第一终端20首先要获取发送第一SR的第一SR配置和第一SR资源。
作为一种实现：第一终端20获取发送第一SR的第一SR配置和第一SR资源可 以通过以下方式实现：
一方面，第一终端20中配置有第一SR配置和第一SR资源。该第一SR配置和第一SR资源和特定SR关联，该特定SR用于请求传输sidelink CSI报告的侧行链路资源。
另一方面，第一终端20可以向基站请求第一SR配置和第一SR资源。
关于第一终端20向基站请求第一SR配置和第一SR资源的过程可以参考下述步骤601-步骤603中的描述。
作为一种可能的实施例，如图6所示，本申请实施例提供的方法在步骤401之前，也即在第一侧行链路CSI报告被触发之前，本申请实施例提供的方法还可以包括：
步骤601、第一终端20向基站发送第一消息，以使得基站接收来自第一终端20的第一消息。
其中，第一消息用于指示第一终端20需要发送侧行链路CSI报告。
作为一种具体的实现方式，该第一消息可以为侧行链路终端SidelinkUEInformation消息，或者UEAssistanceInformation消息，或者新定义的RRC消息，本申请实施例对此不作限定。
作为一种具体实现，该第一消息中包括第一指示信息。该第一指示信息可以具有如下含义：
第一种含义、用于指示第一终端20向基站请求第一SR配置和第一SR资源，并且该第一SR配置和第一SR资源用于向基站请求发送侧行链路CSI报告的sidelink资源。
第二种含义、用于指示第一终端20需要发送侧行链路CSI报告，或者需要发送第一侧行链路CSI报告。
本申请实施例中第一终端20需要发送的侧行链路CSI报告可以是第一侧行链路CSI报告，也可以是其他侧行链路CSI报告。
作为一种具体的实现方式，该第一消息中还可以包括第二终端30的标识。该第二终端30的标识可以为第二终端30的目的地标识。这样第一终端20通过第一消息可以向基站表明所请求的第一SR配置和第一SR资源与第二终端30关联。也即后续该第一终端20根据第一SR配置和第一SR资源发送的SR用于请求向第二终端30发送侧行链路CSI报告的sidelink资源。
基于此，第一指示信息的第一种含义可以进一步理解为：用于指示第一终端20向基站请求第一SR配置和第一SR资源，并且该第一SR配置和第一SR资源用于向基站请求向第二终端30发送侧行链路CSI报告的sidelink资源。第二种含义可以进一步理解为：用于指示第一终端20需要向第二终30发送侧行链路CSI报告。
步骤602、第一终端20向基站发送辅助信息集合，以使得基站接收来自第一终端20的辅助信息集合。
其中，辅助信息集合包含如下信息中的至少一项：第一侧行链路CSI报告的最大允许时延，第一侧行链路CSI报告的混合自动重复请求(Hybird Autonomou Repeat Requet，HARQ)反馈的配置信息，第一侧行链路CSI报告的最大重传次数，传输第一侧行链路CSI报告的第一信令的长度，传输第一侧行链路CSI报告的周期和时间偏 移值。HARQ反馈的配置信息用于配置针对第一侧行链路CSI报告的传输是否需要HARQ反馈。
可选的，该辅助信息集合还可以包括第二辅助信息：第一终端20向第二终端30发送CSI的周期和时间偏移值。如果CSI的周期和时间偏移值可以由第一终端20自主确定，也可以由第一终端20基于来自第二终端30的第六信息确定。
其中，该最大允许时延的含义是：第一终端20在接收到第二终端30的触发CSI反馈的指示后，从触发CSI报告到第一终端20向第二终端30发送第一侧行链路CSI报告的最大等待时间。
一方面，辅助信息集合的内容可以由第一终端20自主确定。例如，第一终端20自己确定是否指示第二终端反馈针对第一侧行链路CSI报告的HARQ信息。第一终端20自己确定第一侧行链路CSI报告的最大重传次数以及传输第一侧行链路CSI报告的第一信令的长度。其中，HARQ信息用于指示是否正确接收传输第一侧行链路CSI报告的第一信令。
另一方面，辅助信息集合的内容也可以由第二终端30向第一终端20指示。对于第一终端20根据第二终端30的指示确定辅助信息集合的过程可以参考下述实施例图10中的描述，此处不再赘述。
作为一种可能的实施例，在第一终端20向基站发送第一消息之前，本申请实施例提供的方法还可以包括：第一终端20触发第一消息的上报。
关于第一终端20触发第一消息的上报的具体实现过程可以参考如图7所示的方法，图7提供了一种第一终端20触发第一消息的上报的方法，该方法包括：
步骤701、第一终端20和第二终端30之间建立单播通信连接。
步骤701的具体实现可以参考现有技术中的描述，此处不再赘述。
步骤702、第二终端30向第一终端20发送侧行链路能力问询消息，以使得第一终端20接收侧行链路能力问询消息。
可选的，如果第二终端30支持CSI-RS发送，第二终端30在侧行链路能力问询消息中携带如下能力信息：第二终端30支持CSI-RS发送。
步骤703、第一终端20向第二终端30发送侧行链路能力消息，以使得第二终端30接收侧行链路能力消息。
如果第一终端20支持向第二终端反馈sidelink的CSI，第一终端20在该侧行链路能力消息中，携带如下能力信息：第一终端20支持sidelink CSI反馈。或者，如果第二终端30在侧行链路能力询问消息中指示第二终端30支持发送CSI-RS，第一终端20才在侧行链路能力消息中携带第一指示，该第一指示指示第一终端20支持反馈sidelink CSI。否则，第一终端20在侧行链路能力消息中不携带第一指示。
步骤704、第二终端30向第一终端20发送侧行链路的接入层配置信息，以使得第一终端20接收侧行链路的接入层配置信息。该接入层配置信息通过PC5RRC消息来承载。在该接入层的配置信息中包含如下信息中的至少一项：
第一信息，用于指示第二终端30会向第一终端20发送的CSI-RS图样(pattern)。
第二信息，第一终端20向第二终端30发送的第一侧行链路CSI报告的最大允许时延。
第三信息，第一侧行链路CSI支持反馈HARQ信息或不支持反馈HARQ信息。
第四信息，第一侧行链路CSI报告的最大重传次数。
第五信息，携带第一侧行链路CSI报告的第一信令的长度，也即携带第一侧行链路CSI报告的MAC CE的长度。
需要说明的是，步骤602中的辅助信息可以由第一终端根据第二信息、第三信息、第四信息、第五信息、第六信息对应确定。
步骤705、第一终端20在接收到第二终端30发送的包含CSI-RS pattern信息的接入层配置信息后，触发第一消息上报。
需要说明的是，当图7所示的方法和下述示例2结合时，接入层的配置信息中还可以包括第六信息。其中，第六信息用于指示第一终端20向第二终端30发送第一侧行链路CSI报告的周期和时间偏移值；该周期和时间偏移值可以与第二终端30发送数据所用的配置授权的周期和时间偏移值相同；或者该周期和时间偏移值由第二终端30基于实现确定，本申请实施例对此不作限定。基于此，后续第一终端20可以结合第六信息确定辅助信息集合中第一侧行链路CSI报告的周期和时间偏移值。
需要说明的是，本申请实施例中第一终端20可以向基站不发送辅助信息集合，也即步骤602为可选的步骤。在第一终端20向基站发送辅助信息集合的情况下：一方面，辅助信息集合可以通过单独的消息发送给基站。另一方面，辅助信息集合可以携带在第一终端20向基站发送的其他消息中，例如，辅助信息集合可以携带在第一消息中。当辅助信息集合携带在第一消息中，步骤602可以省略。
步骤603、基站向第一终端20发送第二消息，以使得第一终端20接收来自基站的第二消息。
其中，第二消息包括第一SR配置标识，第一SR配置标识与第一SR配置和第一SR资源关联，第一SR配置和第一SR资源对应于用于请求侧行链路资源的SR，侧行链路资源用于传输侧行链路CSI报告。
作为一种可选的实现方式，该第二消息中可以包括该第一SR配置和第一SR资源。或者当第二消息中不包括第一SR配置和第一SR资源时，第一终端20中被配置有一个或多个SR配置或一个或多个SR资源，这样第一终端20便可以根据第一SR配置标识从一个或多个SR配置或一个或多个SR资源中确定第一SR配置和第一SR资源。其中，一个或多个SR配置或一个或多个SR资源可以预配置给第一终端20或者由基站为第一终端20配置，本申请实施例对此不作限定。
可以理解为，第一SR配置和第一SR资源中的一个或多个为基站为第一终端20配置的专门用来发送特定SR。该特定SR用于请求用于传输侧行链路CSI报告的侧行链路资源。例如，特定SR可以对应下述第一SR。
需要说明的是，当第一消息中不携带第二终端的标识时，基站为第一终端20配置的第一SR配置和第一SR资源不仅可以用于第一终端20向基站请求向第二终端30发送侧行链路CSI报告的sidelink资源，还可以用于第一终端20向基站请求向第二终端30发送侧行链路CSI报告的sidelink资源。当第一消息中携带第二终端的标识时，基站为第一终端20配置的第一SR配置和第一SR资源用于请求向第二终端30发送侧行链路CSI报告的sidelink资源。也即如果第一消息中携带第二终端30的标识，则该第 二消息中的第一SR配置和第一SR资源也与第二终端30的标识关联，这种情况下，第一终端20通过该第一SR配置和第一SR资源向基站发送的第一SR用于请求给第二终端30发送侧行链路CSI报告的sidelink资源。
需要说明的是，当基站为第一终端20配置第一SR配置和第一SR资源之前，如果基站接收到辅助信息集合，则基站为第一终端20配置第一SR配置和第一SR资源则可以考虑辅助信息集合的具体内容。也即基站结合辅助信息集合的具体内容为第一终端20配置第一SR配置和第一SR资源。例如，基站根据辅助信息信息中的CSI的最大允许时延来确定为第一终端20配置的第一SR配置中的禁止时间计时器的长度和最大传输次数，以及第一SR资源中的SR的资源周期。
作为一种可能的实施例，如图6所示，在第一侧行链路CSI报告的情况下，本申请实施例提供的方法还可以包括：
步骤604、在满足预设条件的情况下，第一终端20触发第一调度请求SR。
作为一种示例，预设条件包括以下一个或多个：第一终端20没有传输第一侧行链路CSI报告的侧行链路资源；或者，第一终端触发侧行链路缓存状态报告BSR，但没有传输侧行链路BSR的上行资源，或者，若第一终端没有传输第一侧行链路CSI报告的侧行链路资源，第一终端触发侧行链路缓存状态报告BSR，但没有传输侧行链路BSR的上行链路资源。
换言之，步骤604可以通过以下步骤604a～步骤604c中任一个替换：
步骤604a、在没有传输第一侧行链路CSI报告的侧行链路资源的情况下，第一终端20触发第一调度请求SR。
步骤604b、在没有传输第一侧行链路CSI报告的侧行链路资源的情况下，第一终端20触发侧行链路缓存状态报告(SL-BSR)。若第一终端20没有传输SL-BSR的上行链路(uplink)资源，第一终端20触发第一调度请求SR。在步骤604b中，在第一终端20触发第一侧行链路CSI报告的情况下，如果第一终端20确定没有传输第一侧行链路CSI报告的侧行链路资源，则会触发SL-BSR。触发SL-BSR后，如果有传输该SL-BSR的上行链路资源，则第一终端20可以直接通过上行链路资源传输该SL-BSR，即不再触发第一SR。
步骤604c、第一终端20触发侧行链路缓存状态报告SL-BSR，若第一终端20没有传输SL-BSR的上行链路资源，第一终端20触发第一调度请求SR。可以理解的是，在步骤604c中，在第一终端20触发第一侧行链路CSI报告的情况下，第一终端20便触发SL-BSR。触发SL-BSR后，如果有传输该SL-BSR的上行链路资源，则第一终端20可以直接通过上行链路资源传输该SL-BSR，即不再触发第一SR。
作为一种具体实现：第一终端20没有传输第一侧行链路CSI报告的侧行链路资源可以包括如下三种情况中的一种：
1)、第一终端20不具有任何sidelink资源。
2)、第一终端20虽然具有sidelink资源，但该sidelink资源不能用于传输侧行链路CSI报告。
3)、第一终端20具有sidelink资源，但该sidelink资源无法容纳携带侧行链路CSI报告的第一信令和该第一信令的报文头。
作为一种具体实现：第一终端20没有传输SL-BSR的上行链路资源可以包括如下三种情况中的一种：
1)、第一终端20不具有任何uplink资源。2)、第一终端20虽然具有uplink资源，但该uplink资源不能满足侧行链路CSI报告的时延要求。3)、第一终端20具有uplink资源，但该uplink资源无法容纳携带SL BSR的MAC CE和对应的MAC报文头。
作为一种可能的实施例，在第一终端20具有第一SR配置和第一SR资源的情况下，第一终端20可以通过下述步骤605～步骤607来向基站请求第一侧行链路资源：
如图6所示，图6中的步骤605～步骤607描述了第一终端20根据第一SR配置和第一SR资源请求第一侧行链路资源的过程。
步骤605、第一终端20根据第一SR配置在第一SR资源上向基站发送第一SR，以使得基站接收第一SR。
可选的，第一SR用于请求基站为第一终端分配可用于传输侧行链路CSI报告侧行链路资源。
可以理解的是，第一终端20根据第一SR配置和第一SR资源中的任一个向基站发送第一SR时，基站均可以确定为第一终端20配置第一侧行链路资源。
如果第一SR配置和第一SR资源已被配置为用于请求发送侧行链路CSI报告的sidelink资源，则后续基站在第一SR资源上接收到第一SR，和/或该第一SR采用第一SR配置，基站便可以确定第一SR用于请求基站为第一终端分配可用于传输侧行链路CSI报告侧行链路资源。也即一旦基站为第一终端20配置了第一SR配置和第一SR资源，后续基站在第一SR资源上接收到的第一SR，无论该第一SR是否具有指示性含义，基站都可以认为第一SR是为了请求基站为第一终端分配可用于传输侧行链路CSI报告侧行链路资源。
需要说明的是，如果第一终端20已被配置有第一SR配置和第一SR资源，或者第一SR配置和第一SR资源由协议预定义，且基站也知晓第一SR配置和第一SR资源的含义，或者第一终端20中具有第一SR配置和第一SR资源，虽然基站不知晓第一SR配置和第一SR资源的含义，但是第一终端20利用第一SR请求基站为第一终端20分配可用于传输侧行链路CSI报告侧行链路资源的情况下，则上述步骤601-步骤603可以省略。即第一终端20被配置有第一SR配置和第一SR资源的情况下，第一终端20请求基站分配第一SR配置和第一SR资源的过程可以省略。
步骤606、基站向第一终端20发送第一侧行链路资源的信息，以使得第一终端20接收来自基站的第一侧行链路资源的信息。
例如，第一侧行链路资源的信息可以为第一侧行链路资源的时域位置，频域位置，或者第一侧行链路资源的标识。
相应的，如图6所示，本申请实施例中的步骤401可以通过以下方式实现：
步骤607、在第一侧行链路信道状态信息CSI报告被触发的情况下，第一终端20根据第一侧行链路资源的信息确定第一侧行链路资源。
需要说明的是，如果除了第一侧行链路CSI报告触发的第一SR之外，第一终端20还触发了其它sidelink无线承载的逻辑信道的SR1，并且SR1所关联的SR资源与 第一SR关联的第一SR资源在时间上重叠，那么第一终端20优先发送SR1，或者第一终端20优先发送第一SR。或者第一终端20比较SR1的优先级和第一SR的优先级，优先发送优先级高的SR。这样第一终端20也可以在基于SR1获取到的侧行链路资源上传输第一侧行链路CSI报告。
在一种可能的实施例中，如图6所示，在第一侧行链路CSI报告被触发的情况下，本申请实施例提供的方法还包括：
步骤608、在第一侧行链路CSI报告被触发的情况下，第一终端20开启第一计时器。
步骤609、在第一计时器超时的情况下，如果满足第一条件，第一终端20取消第一侧行链路CSI报告。
其中，第一条件包括以下一个或多个：第一终端20未接收到第一侧行链路资源。或者，第一终端20未生成包含第一MAC PDU。或者，第一终端20未发送第一MAC PDU。
可选的，如果第一SR被触发，在第一计时器超时并且第一条件满足的情况下，第一终端20取消第一SR。
需要说明的是，如果步骤604替换为步骤604b或者604c，可选的，如果SL-BSR被触发，在第一计时器超时并且第一条件满足的情况下，第一终端20取消第一侧行链路CSI报告触发的SL-BSR。
在一种可能的实施例中，如图6所示，在第一计时器开启的情况下，本申请实施例提供的方法还包括：
步骤610、在第一计时器运行期间，如果满足第二条件，第一终20停止第一计时器。
作为一种实现，第二条件包括以下一个或多个：第一终端20接收到第一侧行链路资源；或者，第一终端20生成第一MAC PDU。或者，第一终端20已发送第一MAC PDU。本申请实施例中包含第一侧行链路CSI报告的MAC PDU和包含第一信令的MAC PDU意思等价。
可选的，如果第一SR被触发，在第二条件满足的情况下，第一终端20取消第一SR。
需要说明的是，如果步骤604替换为步骤604b或者604c，可选的，如果SL-BSR被触发，在第一条件满足的情况下，第一终端20取消第一侧行链路CSI报告触发的SL-BSR。
如果第一终端20发送的任意一个SR达到最大传输次数，第一终端20取消发送该SR。此外，第一终端20取消触发的第一侧行链路CSI报告，以及停止第一计时器，并且触发随机接入过程。
可选的，如果第一终端20发送的用于请求发送侧行链路CSI报告的sidelink资源的SR达到最大传输次数，第一终端20取消触发的第一侧行链路CSI报告，并且停止第一计时器，但第一终端20不触发随机接入过程。
本申请实施例中第一计时器的长度由协议定义，或者由第一终端20确定，或者由第二终端30为第一终端20指示。例如，第一计时器的长度为第一侧行链路CSI报告 的最大允许时延。
步骤611同步骤402，本申请实施例在此不再赘述。
由于第一侧行链路资源还可以用于第一终端20向第二终端30发送除第一侧行链路CSI报告以外的侧行链路数据，但是，受限于第一侧行链路资源的大小，第一终端20可以确定第一信令的优先级，并根据第一信令的优先级和其他侧行链路数据的优先级确定在第一侧行链路资源上优先发送第一信令还是其他侧行链路数据。
基于此，作为一种可能的实施例，如图6所示，本申请实施例提供的方法在步骤611之前还可以包括：
步骤612、在侧行链路逻辑信道优先级处理过程中，第一终端20确定第一信令的优先级为最高优先级，或者第一信令的优先级为第一优先级。
本申请实施例中第一信令的优先级为最高优先级或第一信令的优先级为第一优先级可以由第一终端20自主确定，也可以由基站通过专用信令或者系统信息为第一终端20配置第一信令的优先级。第一终端20可以根据第一信令的第一优先级与侧行链路逻辑信道的优先级进行比较，确定优先利用第一侧行链路资源发送第一信令还是发送侧行链路逻辑信道上的侧行链路数据。
当第一信令的优先级为最高优先级时，第一终端20在对基站调度的第一sidlink资源进行逻辑信道优先级处理时，会优先选择需要反馈第一侧行链路CSI报告的对端终端(即第二终端30)的目的地标识。举例说明，如果第一终端20向第二终端30发送第一侧行链路CSI报告，同时第一终端还向第三终端或第二终端传输侧行链路数据，在该情况下，在逻辑信道优先级处理过程中选择目的地终端时，第一终端20会选择第二终端，即利用基站调度的第一sidelink资源与第二终端30进行通信。此外，如果侧行链路数据的目的地标识和第一信令的目的地标识相同，第一终端20可以优先在第一sidelink资源上发送第一信令，当第一sidelink资源还有剩余的情况下，还可以在第一sidelink资源上向第二终端发送侧行链路数据。
当第一信令的优先级为最高优先级的情况下，当第一终端20需要同时向多个对端终端反馈第一侧行链路CSI报告时，第一终端20进一步从这多个对端终端中选择有数据待传并且侧行链路逻辑信道优先级最高的侧行链路逻辑信道对应的对端终端的目的地标识。例如，UE1在同一时刻需要向UE2和UE3反馈携带携带CSI的MAC CE，并且在该时刻UE1还要给UE2和UE3发送侧行链路数据。如果UE1需要发送给UE2的侧行链路数据的侧行链路逻辑信道的优先级为2，而UE1需要发送给UE3的侧行链路数据的侧行链路逻辑信道的优先级为3，那么在逻辑信道优先级处理过程中选择目的地终端时，UE1会选择UE2(UE2的侧行链路数据的侧行链路逻辑信道的优先级高于UE3的侧行链路数据的侧行链路逻辑信道的优先级)，即UE1利用基站调度的该第一sidelink资源与UE2进行通信。可选的，上述携带CSI的MAC CE在逻辑信道优先级处理过程中的优先级，也可以用于确定第一信令，或者第一MAC PDU的HARQ重传次数。
当第一终端20向第二终端30发送第一信令时，一种可能发生的情况是：第一终端20同时需要通过LTE的侧行链路进行通信。例如，第一终端20通过LTE的侧行链路发送侧行链路数据，发送同步信号，或者发送LTE的侧行链路系统信息。这种情 况下，如果第一终端20不能同时在NR的侧行链路上发送第一信令和在LTE的侧行链路上进行通信，那么第一终端20需要放弃其中一个侧行链路的传输。因此，第一终端20可以确定在NR的侧行链路上发送的第一信令和在LTE的侧行链路上发送的LTE信息的优先级。例如，LTE信息可以包括数据，或者同步信号，或者系统信息。这种情况下，第一终端20可以步骤612或步骤613获取第一信令的优先级：
步骤613、当第一终端20发送第一MAC PDU的时刻与第一终端20的第一制式的侧行链路通信的时刻冲突，第一终端20发送第一MAC PDU。也即第一MAC PDU的优先级最高。
其中，第一制式的侧行链路可以指LTE的侧行链路。本申请实施例中的第一MAC PDU在第二制式的侧行链路上发送。第二制式的侧行链路可以为NR的侧行链路。
本申请实施例中第一MAC PDU的时刻与第一终端20的第一制式的侧行链路通信的时刻冲突指：第一终端20发送第一MAC PDU的时刻和第一终端20在第一制式的侧行链路上的通信的时刻相同，或者二者的时刻在预设误差内。
步骤614、当第一终端20发送第一MAC PDU的时刻与第一终端的第一制式的侧行链路通信的时刻冲突，第一终端20根据第一MAC PDU的第二优先级确定是否发送第一MAC PDU。第一制式的侧行链路通信为基于LTE的侧行链路通信。
作为一种可能的实现，步骤614可以通过下述方式实现：当第一MAC PDU的第二优优先级高于第一制式的侧行链路的优先级，第一终端20在第二制式的侧行链路上传输第一MAC PDU，而放弃在LTE的侧行链路上发送的LTE信息。
作为另一种可能的实现，具体的，步骤613可以通过下述方式实现：基站通过专用信令或者系统信息配置第一MAC PDU为优先级为最高优先级，或者步骤6134可以通过下述方式实现：基站通过专用信令或者系统信息为第一MAC PDU预配置一个第二优先级，该第二优先级用于与LTE的侧行链路的优先级进行比较。
举例说明，第一MAC PDU的优先级为2。如果第一终端20在LTE的侧行链路上需要发送LTE信息，并且LTE信息的优先级为1(也即LTE的侧行链路的优先级为2)，则在出现上述情况时，第一终端20放弃在NR的侧行链路上传输第一MAC PDU，而在LTE的侧行链路上的发送LTE信息(即LTE的侧行链路的优先级高于第一MAC PDU的第二优先级)。
举例说明，如果LTE信息的优先级为3，第一MAC PDU的优先级为2，那么出现上述情况时，第一终端20在NR的侧行链路上传输第一MAC PDU，而放弃在LTE的侧行链路上发送LTE信息(即LTE的侧行链路的优先级低于第一MAC PDU的第二优先级)。
综上，本申请实施例中的步骤614具体可以通过以下方式实现：第一MAC PDU的时刻与第一终端的第一制式的侧行链路通信的时刻冲突的情况下，如果第一MAC PDU的第二优先级高于第一制式的侧行链路的优先级，则第一终端20发送第一MAC PDU。当第一MAC PDU的第二优先级低于第一制式的侧行链路的优先级，则第一终端20在LTE的侧行链路上的发送LTE信息。
可选的，该第二优先级可以与第一MAC PDU在sidelink的逻辑信道优先级处理过程中的第一优先级相同。
作为一种可能的实施例，本申请实施例提供的方法在步骤611之前，还可以包括：
步骤615、第一终端20向第二终端30发送第二指示信息，以使得第二终端30接收来自第一终端20的第二指示信息。第二指示信息用于指示第二终端不发送HARQ信息，或者，第二指示信息指示第二终端发送HARQ信息。HARQ信息针对第一MAC PDU。
作为一种可能的实施例，本申请实施例中的第二指示信息可以携带在第一MAC PDU中。
作为一种可能的实施例，在满足以下第三条件时，第二指示信息指示第二终端不发送针对第一MAC PDU的HARQ信息；第三条件包括以下一个或多个：第一MAC PDU被配置为不支持反馈HARQ信息，或，第一侧行链路CSI报告不支持反馈HARQ信息，或，基站配置第一MAC PDU不支持反馈HARQ信息。在满足以下第四条件时，第二指示信息指示第二终端30发送针对第一MAC PDU的HARQ信息；第四条件包括以下一个或多个：第一MAC PDU被配置为支持反馈HARQ信息，或，第一侧行链路CSI报告支持反馈HARQ信息，或，基站配置第一MAC PDU支持反馈HARQ信息。
作为一种可能的实施例，第一MAC PDU还包括承载在第一侧行链路逻辑信道的侧行链路数据，第三条件还包括：第一MAC PDU包括的第一侧行链路逻辑信道和第一信令的优先级中优先级最高者不支持反馈HARQ信息；第四条件还包括：第一MAC PDU包括的第一侧行链路逻辑信道和第一信令的优先级中优先级最高者支持反馈HARQ信息。
举例说明，第一终端20向第二终端30发送包括第一MAC PDU，对于第一MAC PDU的HARQ重传，有如下两方面：
(1)、是否需要HARQ反馈：
如果该第一MAC PDU中只包含第一信令，那针对该第一MAC PDU的传输是否需要HARQ反馈，有如下几种选项：
选项1：标准中预定义：如果第一MAC PDU中只包含第一信令，该第一MAC PDU的传输不支持HARQ反馈。
选项2：如果第一MAC PDU中只包含第一信令，该第一MAC PDU的传输是否支持HARQ反馈，取决于第二终端30通知给第一终端20的第三信息，即携带第一侧行链路CSI报告的传输是否支持HARQ反馈的指示。
选项3：如果第一MAC PDU中只包含第一信令，该第一MAC PDU的传输是否支持HARQ反馈，由基站通过专用信令或者系统信息为第一终端20配置，并由第一终端20通知给第二终端30。
如果该第一MAC PDU中既包含第一信令，也包含侧行链路数据，那针对该第一MAC PDU的传输是否支持HARQ反馈，取决于该第一MAC PDU中包含的第一信令的优先级和侧行链路数据对应的逻辑信道的优先级中优先级最高者的HARQ反馈的配置。如果侧行链路数据对应的逻辑信道的优先级最高，且支持HARQ反馈，则该第一MAC PDU支持HARQ反馈。如果侧行链路数据对应的逻辑信道的优先级最高，且不支持HARQ反馈，则该第一MAC PDU不支持HARQ反馈。如果第一信令的优先级最高，且支持HARQ反馈，则该第一MAC PDU支持HARQ反馈。如果第一信令的优先 级最高，且不支持HARQ反馈，则该第一MAC PDU不支持HARQ反馈。
作为一种可能的实施例，如图6所示，本申请实施例提供的方法还包括：
步骤616、第一终端20确定第一MAC PDU的最大重传次数。其中，第一MAC PDU的最大重传次数由协议预定义，或者，由第一侧行链路CSI报告对应的最大重传次数确定，或，第一MAC PDU的最大重传次数由由基站配置。
作为一种可能的实现方式，第一MAC PDU除了包括第一信令外，还包括承载在第一侧行链路逻辑信道的侧行链路数据，第一MAC PDU的最大重传次数由第一MAC PDU包括的第一侧行链路逻辑信道和第一信令的优先级中优先级最高的对应的重传次数确定。
举例说明，如果该第一MAC PDU中只包含第一信令，那该第一MAC PDU的最大HARQ重传次数的确定，有如下几种选项：
选项1：如果第一MAC PDU中只包含第一信令，该第一MAC PDU的最大HARQ重传次数由协议预定义。
选项2：如果第一MAC PDU中只包含第一信令，该第一MAC PDU的最大HARQ重传次数，取决于第二终端30为第一终端20发送的第四信息的值，即第一信令的最大重传次数。
选项3：如果第一MAC PDU中只包含第一信令，该第一MAC PDU的最大HARQ重传次数，由第一终端20的基站通过专用信令或者系统信息配置。
如果该第一MAC PDU中既包含第一信令，也包含侧行链路数据，那针对该第一MAC PDU的最大HARQ重传次数，取决于该第一MAC PDU中包含的逻辑信道优先级最高的逻辑信道的最大HARQ重传次数。
作为一种可能的实施例，如图6所示本申请实施例提供的方法在步骤611之后还可以包括：
步骤617、第一终端20确定不再需要发送侧行链路CSI报告时，第一终端20可以向基站发送第四消息，以使得基站接收第四消息。该第四消息可以为SidelinkUEInformation消息，或者UEAssistanceInformation消息，或者新定义的RRC消息。
作为一种具体实现，该第四消息中包括第三指示信息。该第三指示信息可以有如下两种可选的含义：
(1)、第一种含义：用于指示第一终端20不再需要基站在第二消息中配置的第一SR配置标识所关联的第一SR配置和第一SR资源。
(2)、第二种含义：用于指示第一终端20不再需要发送侧行链路CSI报告。
如果第一消息中包括第二终端的标识，则第四消息中也可以包括第二终端的标识。
第一终端20确定不再需要发送侧行链路CSI报告的条件例如可以包括：第二终端30通知第一终端20不需要再反馈第一终端20和第二终端30之间侧行链路的CSI，或者第一终端30与第一终端20的单播通信连接被释放。
可选的，第二终端30通知第一终端20不需要再反馈第一终端20和第二终端30之间侧行链路的CSI的方式可以为：第二终端释放之前为第一终端配置的CSI-RS图样(pattern)。
示例2、基站为第一终端20配置配置授权(Configured Grant)。
作为一种可能的实施例，如图8所示，在第一侧行链路信道状态信息CSI报告被触发之前，本申请实施例提供的方法还可以包括：
步骤801和步骤802，同步骤601和步骤602的描述。
区别在于：在图8所示的实施例中第一指示信息具有上述第二种含义。此外，辅助信息还可以包括第一终端20发送第一侧行链路CSI报告的周期和时间偏移值。该周期和时间偏移值可以由第一终端20自主确定，也可以由第二终端30为第一终端20指示，本申请实施例对此不作限定。
步骤803、基站向第一终端20发送配置授权，以使得第一终端20接收来自基站的配置授权。其中，配置授权用于第一终端20确定基站为第一终端20配置的可用于传输侧行链路CSI报告的侧行链路资源。
作为一种实现，该配置授权可以携带在第三消息中。该第三消息可以为RRC消息。
需要说明的是，步骤801-步骤803描述了基站在第一终端20的触发下为第一终端20配置配置授权的过程。当基站可以自主确定为第一终端20配置配置授权的情况下，步骤801和步骤802可以省略。
由于配置授权的内容不同，第一终端20根据配置授权确定第一侧行链路资源的方式存在差异，下述将分别介绍：
示例2-1)、配置授权用于指示为第一终端20配置的一个或多个侧行链路资源的信息。可以称为第一类型的配置授权。一个或多个侧行链路资源可用于传输侧行链路CSI报告。
作为一种具体的实现方式，本申请实施例示例2-1中的配置授权可以包括一个或多个第一类型的配置授权。该一个或多个第一类型的配置授权中每个第一类型的配置授权指示为第一终端20配置的侧行链路资源的信息。
应理解，在示例2-1中，在第一侧行链路CSI报告被触发的情况下，第一终端20通过向基站发送第一消息表明第一终端要发送侧行链路CSI报告(或要发送第一侧行链路CSI报告)，这样基站通过配置授权指示基站为第一终端20配置的一个或多个侧行链路资源。后续，在第一终端20生成第一侧行链路CSI报告后，便可以从一个或多个侧行链路资源中选择一个侧行链路资源作为第一侧行链路资源，也即第一侧行链路资源为一个或多个侧行链路资源中的侧行链路资源。也即步骤401可以通过下述步骤804实现：在第一侧行链路信道状态信息CSI报告被触发，第一终端20确定第一侧行链路资源为一个或多个侧行链路资源中的侧行链路资源。
作为一种具体实现，该第一侧行链路资源的时刻位于第一侧行链路CSI报告的触发时刻之后。
作为一种具体实现，第一侧行链路资源的时刻与触发时刻之间的时间间隔满足第一侧行链路CSI报告的最大允许时延。
作为一种具体实现，一个或多个侧行链路资源中任一个侧行链路资源与触发时刻之间的时间间隔大于第一侧行链路CSI报告的最大允许时延，或者一个或多个侧行链路资源中目标侧行链路资源的时刻与第一终端20发送第一侧行链路CSI报告的时刻之间的时间间隔大于第一侧行链路CSI报告的最大允许时延，第一终端20取消第一侧行 链路CSI报告。其中，目标侧行链路资源位于第一侧行链路CSI报告的触发时刻之后，且与第一终端20发送第一侧行链路CSI报告的时刻之间的时间间隔小于一个或多个侧行链路资源中其他侧行链路资源与发送第一侧行链路CSI报告的时刻之间的时间间隔。也即虽然基站为第一终端20配置了可用于传输侧行链路CSI报告的一个或多个侧行链路资源，但是如果采用该侧行链路资源发送第一侧行链路CSI报告可能会导致第一侧行链路CSI报告的时延超过最大允许时延，因此第一终端20可以放弃发送第一侧行链路CSI报告。
可选的，如果第一消息中未携带第二终端的标识，该第一类型的配置授权用于确定第一终端20发送侧行链路CSI报告的侧行链路资源。如果第一消息中携带第二终端的标识，则第一类型的配置授权用于第一终端20确定第一终端20向第二终端30发送的侧行链路CSI报告的侧行链路资源。
可以理解的是，在步骤801-步骤802省略的情况下，协议可以定义基站为第一终端20配置第一类型的配置授权。
图8中的步骤805同步骤402此处不再赘述。
作为一种可能的实施例，图8所示的实施例还可以包括：步骤806-步骤811，具体的步骤806-步骤811可以对应参考步骤612-步骤617中的描述，此处不再赘述。
值得说明的是，在图8所示的实施例中该第二指示信息可以有如下两种可选的含义：
(1)第一种含义：用于指示第一终端20不再需要基站在第二消息中配置的第一类型的配置授权。
(2)第二种含义：用于指示第一终端20不再发送侧行链路CSI报告。
示例2-2)、配置授权用于指示为第一终端20配置的第二侧行链路资源的周期，可以称为第二类型的配置授权。此外，配置授权还用于指示为第一终端20配置的第二侧行链路资源的时间偏移。
需要说明的是，本申请第一类型的配置授权和第二类型的配置授权的区别在于，基站利用第一类型的配置授权向第一终端20指示已为第一终端20配置的一个或多个第二侧行链路资源。而基站利用第二类型的配置授权向第一终端20指示具有可用于传输侧行链路CSI报告的侧行链路资源，但是此时基站并未告诉第一终端20该可用于传输侧行链路CSI报告的侧行链路资源的时频位置，后续第一终端20可以通过激活该第二类型的配置授权，以确定第二类型的配置授权对应的可用于传输侧行链路CSI报告的侧行链路资源的时频位置。或者，第二类型的配置授权向第一终端20指示存在可用于传输侧行链路CSI报告的侧行链路资源，后续第一终端20在激活第二类型的配置授权的过程中，基站不仅指示可用于传输侧行链路CSI报告的侧行链路资源的时频位置，还向第一终端20指示可用于传输侧行链路CSI报告的侧行链路资源的周期。也即第一终端20激活第二类型的配置授权后，第二类型的配置授权指示的侧行链路资源是周期性的资源。
作为一种可能的实施例，如图9所示，在第一侧行链路信道状态信息CSI报告被触发之前，本申请实施例提供的方法在步骤401之前还可以包括：
步骤901-步骤902，同步骤601-步骤602，此处步骤赘述。
步骤903、基站向第一终端20发送配置授权，以使得第一终端20接收来自基站的配置授权。
配置授权可以携带在第三消息中。
步骤904、基站向第一终端20发送第二SR配置标识，以使得第一终端20接收第二SR配置标识。
其中，第二SR配置关联第二SR配置和第二SR资源，第二SR配置和第二SR资源对应于用于请求激活配置授权的SR。
可选的，该第二SR配置标识可以携带在上述第三消息中。当第二SR配置标识携带在第三消息中时，步骤904可以省略。该第二SR配置和第二SR资源可以包含在第二消息中，也可以是基站在此之前配置给第一终端20的一组SR配置集合。SR配置集合包括SR资源和SR配置。第一终端20可以根据第二SR配置标识从一组SR配置集合中选择第二SR配置和第二SR资源。
作为一种可能的实施例，如图9所示，在第一侧行链路信道状态信息CSI报告被触发的情况下，本申请实施例提供的方法还可以包括：
步骤905、在配置授权未激活的情况下，第一终端20触发第二SR；或者在配置授权未激活，并且第一终端20没有可用的sidelink资源的情况下，第一终端20触发第二SR。
作为一种具体实现：没有传输第一侧行链路CSI报告的侧行链路资源可以包括如下三种情况中的一种：
1)、第一终端20不具有任何sidelink资源。2)、第一终端20虽然具有sidelink资源，但该sidelink资源不能用于传输侧行链路CSI报告。3)、第一终端20具有sidelink资源，但该sidelink资源无法容纳携带侧行链路CSI报告的第一信令和该第一信令的报文头。
步骤906、第一终端20向根据第二SR配置在第二SR资源上向基站发送第二SR，以使得基站接收来自第一终端20的第二SR。
可以理解的是，如果基站确定该第二SR来源于第二SR资源，和/或采用第二SR配置，则基站确定第一终端20用于请求激活配置授权。
步骤907、基站向第一终端20发送激活命令，以使得第一终端20接收激活命令。该激活命令中携带配置授权对应的侧行链路资源的信息。
例如，该激活命令向第一终端20指示配置授权对应的侧行链路资源的时域和频域的资源位置。
相应的，本申请实施例中的步骤401可以通过以下步骤908具体实现：
步骤908、在第一侧行链路CSI报告被触发的情况下，第一终端20根据激活命令和配置授权指示的周期，确定第一侧行链路资源。
作为步骤908的一种具体实现，第一终端20可以将激活命令激活的第一个侧行链路资源之后的下一个侧行链路资源确定为第一侧行链路资源。
步骤909同步骤402的具体实现，此处不再赘述。
需要说明的是，在示例2-2中如果第二类型的配置授权已激活，则第一终端可以省略发送第二SR的过程，此外，第一终端20可以直接根据激活的第二类型的配置授 权确定第一侧行链路资源，具体过程可以参考示例2-1中第一终端20根据第一类型的配置授权确定第一侧行链路资源的过程，此处不再赘述。
如图10所示，第一终端20发送第二SR之后，基站通过激活命令向第一终端20指示的侧行链路资源1如图10所示，相邻两个侧行链路资源1之间的间隔为T，如果激活的第一个侧行链路资源为t1-t2之间的侧行链路资源1，则第一终端20可以确定将t2+T开始的侧行链路资源1确定为第一侧行链路资源。
需要说明的是，如果第一消息中未携带第二终端的标识，则示例2-2中第二类型的配置授权用于确定第一终端20发送侧行链路CSI报告的侧行链路资源。如果第一消息中携带第二终端的标识，则该第二类型的配置授权用于确定第一终端20向第二终端30发送的侧行链路CSI报告。
需要说明的是，如果除了第二SR之外，第一终端20还触发了其它sidelink无线承载的逻辑信道的SR2，并且SR2所关联的SR资源与第二SR关联的第二SR资源在时间上重叠，那么第一终端20优先发送SR1，或者第一终端20优先发送第二SR。或者第一终端20比较SR1的优先级和第二SR的优先级，优先发送优先级高的SR。
作为一种可能的实施例，图9所示的实施例还可以包括：步骤910-步骤915，具体的步骤910-步骤915可以对应参考步骤612-步骤617中的描述，此处不再赘述。
值得说明的是，在图9所示的实施例中该第二指示信息可以有如下两种可选的含义：
(1)第一种含义：用于指示第一终端20不再需要为第一终端20配置的第二类型的配置授权和第二SR配置标识所关联的第二SR配置和第二资源。
(2)第二种含义：用于指示第一终端20不再需要发送侧行链路CSI报告。
在一种可能的实施例中，在图9所示的实施例中本申请实施例提供的方法还包括：步骤608和步骤609，和/或，步骤610。
上述主要从各个网元之间交互的角度对本申请实施例的方案进行了介绍。可以理解的是，各个网元，例如第一终端20、基站等为了实现上述功能，其包括了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例第一终端20、基站进行功能单元的划分，例如，可以对应各个功能划分各个功能单元，也可以将两个或两个以上的功能集成在一个处理单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。需要说明的是，本申请实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
上面结合图4至图10，对本申请实施例的方法进行了说明，下面对本申请实施例提供的执行上述方法的通信装置进行描述。本领域技术人员可以理解，方法和装置可以相互结合和引用，本申请实施例提供的通信装置可以执行上述通信方法中由第一终端20、基站执行的步骤。
在采用集成的单元的情况下，图11示出了上述实施例中所涉及的一种通信装置，该通信装置可以包括：通信单元102和处理单元101。
一种示例，该通信装置为第一终端，或者为应用于第一终端中的芯片。在这种情况下，处理单元101，用于支持该通信装置执行上述实施例步骤401中由中由第一终端执行的步骤。通信单元102用于支持该通信装置执行上述实施例中由第一终端执行的步骤402。
一种可能的实施例中，处理单元101，还用于支持通信装置执行上述实施例中的步骤502、步骤701、步骤705、步骤604、步骤604a、步骤604b、步骤604c、步骤607、步骤608、步骤609、步骤610、步骤612、步骤613、步骤614、步骤616、步骤905、步骤908。
通信单元102，用于支持通信装置执行上述实施例步骤501、步骤702、步骤704、步骤603、步骤606、步骤803、步骤903、步骤904、步骤907中由第一终端接收的动作，步骤601、步骤602、步骤703、步骤605、步骤615、步骤617、步骤906中由第一终端发送的动作。
另一种示例，该通信装置为基站，或者为应用于基站中的芯片。在这种情况下，通信单元101，用于支持该通信装置执行上述实施例中的步骤401中由基站执行的动作。处理单元102，用于支持该通信装置执行除收发信息以外的动作。
在一种可能的实施例中，该通信单元102还用于该通信装置执行上述实施例步骤601、步骤602、步骤605、步骤606、步骤617、步骤906中由基站接收的动作，步骤603、步骤803、步骤903、步骤904、步骤907中由基站发送的动作。
在采用集成的单元的情况下，图12示出了上述实施例中所涉及的通信装置的一种可能的逻辑结构示意图。该通信装置包括：处理模块112和通信模块113。处理模块112用于对通信装置的动作进行控制管理，例如，处理模块112用于执行在通信装置进行信息/数据处理的步骤。通信模块113用于支持通信装置进行信息/数据发送或者接收的步骤。
在一种可能的实施例中，通信装置还可以包括存储模块111，用于存储通信装置可的程序代码和数据。
一种示例，该通信装置为第一终端，或者为应用于第一终端中的芯片。在这种情况下，处理模块112，用于支持该通信装置执行上述实施例步骤401中由中由第一终端执行的步骤。通信模块113用于支持该通信装置执行上述实施例中由第一终端执行的步骤402。
一种可能的实施例中，处理模块112，还用于支持通信装置执行上述实施例中的步骤502、步骤701、步骤705、步骤604、步骤604a、步骤604b、步骤604c、步骤607、步骤608、步骤609、步骤610、步骤612、步骤613、步骤614、步骤616、步骤905、步骤908。
通信模块113，用于支持通信装置执行上述实施例步骤501、步骤702、步骤704、步骤603、步骤606、步骤803、步骤903、步骤904、步骤907中由第一终端接收的动作，步骤601、步骤602、步骤703、步骤605、步骤615、步骤617、步骤906中由第一终端发送的动作。
另一种示例，该通信装置为基站，或者为应用于基站中的芯片。在这种情况下，通信单元101，用于支持该通信装置执行上述实施例中的步骤401中由基站执行的动作。处理单元102，用于支持该通信装置执行除收发信息以外的动作。
在一种可能的实施例中，该通信模块113还用于该通信装置执行上述实施例步骤601、步骤602、步骤605、步骤606、步骤617、步骤906中由基站接收的动作，步骤603、步骤803、步骤903、步骤904、步骤907中由基站发送的动作。
其中，处理模块112可以是处理器或控制器，例如可以是中央处理器单元，通用处理器，数字信号处理器，专用集成电路，现场可编程门阵列或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，数字信号处理器和微处理器的组合等等。通信模块113可以是收发器、收发电路或通信接口等。存储模块111可以是存储器。
当处理模块112为处理器31或处理器35，通信模块113为通信接口33时，存储模块111为存储器32时，本申请所涉及的通信装置可以为图3所示的通信设备。
图13是本申请实施例提供的芯片150的结构示意图。芯片150包括一个或两个以上(包括两个)处理器1510和通信接口1530。
可选的，该芯片150还包括存储器1540，存储器1540可以包括只读存储器和随机存取存储器，并向处理器1510提供操作指令和数据。存储器1540的一部分还可以包括非易失性随机存取存储器(non-volatile random access memory，NVRAM)。
在一些实施方式中，存储器1540存储了如下的元素，执行模块或者数据结构，或者他们的子集，或者他们的扩展集。
在本申请实施例中，通过调用存储器1540存储的操作指令(该操作指令可存储在操作系统中)，执行相应的操作。
一种可能的实现方式中为：第一终端，基站所用的芯片的结构类似，不同的装置可以使用不同的芯片以实现各自的功能。
处理器1510控制第一终端，基站中任一个的处理操作，处理器1510还可以称为中央处理单元(central processing unit，CPU)。
存储器1540可以包括只读存储器和随机存取存储器，并向处理器1510提供指令和数据。存储器1540的一部分还可以包括NVRAM。例如应用中存储器1540、通信接口1530以及存储器1540通过总线系统1520耦合在一起，其中总线系统1520除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图13中将各种总线都标为总线系统1520。
上述本申请实施例揭示的方法可以应用于处理器1510中，或者由处理器1510实现。处理器1510可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器1510中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器1510可以是通用处理器、数字信号处理器(digital signal processing，DSP)、ASIC、现成可编程门阵列(field-programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该 处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1540，处理器1510读取存储器1540中的信息，结合其硬件完成上述方法的步骤。
一种可能的实现方式中，通信接口1530用于执行图4-图9示的实施例中的第一终端，基站接收和发送的步骤。处理器1510用于执行图4-图9示的实施例中的第一终端，基站的处理的步骤。
以上通信单元可以是该装置的一种通信接口，用于从其它装置接收信号。例如，当该装置以芯片的方式实现时，该通信单元是该芯片用于从其它芯片或装置接收信号或发送信号的通信接口。
一方面，提供一种计算机可读存储介质，计算机可读存储介质中存储有指令，当指令被运行时，实现如图4-图9中第一终端的功能。
另一方面，提供一种计算机可读存储介质，计算机可读存储介质中存储有指令，当指令被运行时，实现如图4-图9中基站的功能。
又一方面，提供一种包括指令的计算机程序产品，计算机程序产品中包括指令，当指令被运行时，实现如图4-图9中第一终端的功能。
又一方面，提供一种包括指令的计算机程序产品，计算机程序产品中包括指令，当指令被运行时，实现如图4-图9中基站的功能。
一方面，提供一种芯片，该芯片应用于第一终端中，芯片包括至少一个处理器和通信接口，通信接口和至少一个处理器耦合，处理器用于运行指令，以实现如图4-图9中第一终端的功能。
又一方面，提供一种芯片，该芯片应用于第一网络管理单元中，芯片包括至少一个处理器和通信接口，通信接口和至少一个处理器耦合，处理器用于运行指令，以实现如图4-图9中基站的功能。
本申请实施例提供一种通信系统，该通信系统包括：第一终端和基站。其中，第一终端用于执行图4-图9中的任一个由第一终端执行的步骤，基站用于执行图4-图9中的任一个由基站执行的步骤。
在一种可能的通信系统中，该通信系统还可以包括：第二终端。其中，第二终端用于执行图4-图9中第二终端执行的步骤。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序或指令。在计算机上加载和执行所述计算机程序或指令时，全部或部分地执行本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、网络设备、用户设备或者其它可编程装置。所述计算机程序或指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机程序或指令可以从一个网站站点、计算机、服务器或数据中心通过有线或无线方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的 任何可用介质或者是集成一个或多个可用介质的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，例如，软盘、硬盘、磁带；也可以是光介质，例如，数字视频光盘(digital video disc，DVD)；还可以是半导体介质，例如，固态硬盘(solid state drive，SSD)。
尽管在此结合各实施例对本申请进行了描述，然而，在实施所要求保护的本申请过程中，本领域技术人员通过查看附图、公开内容、以及所附权利要求书，可理解并实现公开实施例的其他变化。在权利要求中，“包括”(comprising)一词不排除其他组成部分或步骤，“一”或“一个”不排除多个的情况。单个处理器或其他单元可以实现权利要求中列举的若干项功能。相互不同的从属权利要求中记载了某些措施，但这并不表示这些措施不能组合起来产生良好的效果。
尽管结合具体特征及其实施例对本申请进行了描述，显而易见的，在不脱离本申请的精神和范围的情况下，可对其进行各种修改和组合。相应地，本说明书和附图仅仅是所附权利要求所界定的本申请的示例性说明，且视为已覆盖本申请范围内的任意和所有修改、变化、组合或等同物。显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包括这些改动和变型在内。

Claims (51)

  1. 一种侧行链路信道状态信息CSI报告的发送方法，其特征在于，包括：
    在第一侧行链路信道状态信息CSI报告被触发的情况下，第一终端获取基站为所述第一终端配置的第一侧行链路资源；
    其中，所述第一侧行链路资源可用于传输侧行链路CSI报告；
    所述第一终端在所述第一侧行链路资源上向第二终端发送所述第一侧行链路CSI报告；
    所述第一侧行链路CSI报告用于所述第一终端向第二终端反馈所述第一终端和所述第二终端之间的侧行链路的CSI。
  2. 根据权利要求1所述的方法，其特征在于，在第一侧行链路信道状态信息CSI报告被触发的情况下，所述方法还包括：
    如果满足预设条件时，所述第一终端触发第一调度请求SR；
    所述第一终端根据第一SR配置在第一SR资源上向所述基站发送所述第一SR；
    所述第一SR配置和所述第一SR资源对应用于请求传输侧行链路CSI报告的侧行链路资源的SR。
  3. 根据权利要求2所述的方法，其特征在于，所述预设条件包括以下一个或多个：
    所述第一终端无所述侧行链路资源；或者，
    所述第一终端存在所述侧行链路资源且所述侧行链路资源无法承载所述第一侧行链路CSI报告的MAC CE和该MAC CE的报文头。
  4. 根据权利要求2或3所述的方法，其特征在于，所述方法还包括：
    所述第一终端接收来自所述基站的第二消息；所述第二消息包括第一SR配置标识，所述第一SR配置标识与所述第一SR配置和所述第一SR资源关联。
  5. 根据权利要求2-4任一项所述的方法，其特征在于，所述方法还包括：
    所述第一终端在生成包含所述第一侧行链路CSI报告的MAC PDU的情况下，取消所述第一调度请求SR。
  6. 根据权利要求2-5任一项所述的方法，其特征在于，所述方法还包括：
    所述第一终端接收所述第二终端发送的PC5-RRC消息；所述PC5-RRC消息中包括所述第一侧行链路CSI报告的最大允许时延。
  7. 根据权利要求2-6任一项所述的方法，其特征在于，所述方法还包括：
    在所述第一侧行链路CSI报告被触发的情况下，所述第一终端开启第一计时器；所述第一计时器的长度为所述第一侧行链路CSI报告的最大允许时延。
  8. 根据权利要求7所述的方法，其特征在于，所述方法还包括：
    在所述第一计时器超时的情况下，所述第一终端取消所述第一侧行链路CSI报告。
  9. 根据权利要求8所述的方法，其特征在于，所述在所述第一计时器超时的情况下，所述第一终端取消所述第一侧行链路CSI报告，包括：
    在所述第一计时器超时的情况下，如果满足第一条件，所述第一终端取消所述第一侧行链路CSI报告；其中，所述第一条件包括以下一个或多个：
    所述第一终端未接收到所述第一侧行链路资源；或者，
    所述第一终端未生成包含所述第一侧行链路CSI报告的媒体接入控制协议数据单 元MAC PDU；或者，
    所述第一终端未发送所述包含所述第一侧行链路CSI报告的MAC PDU。
  10. 根据权利要求1-9任一项所述的方法，其特征在于，所述方法还包括：
    在第一计时器运行期间，如果满足第二条件，所述第一终端停止所述第一计时器；所述第二条件包括以下一个或多个：
    所述第一终端接收到所述第一侧行链路资源；或者，
    所述第一终端生成包含所述第一侧行链路CSI报告的MAC PDU；或者，
    所述第一终端已发送所述包含所述第一侧行链路CSI报告的MAC PDU。
  11. 根据权利要求7所述的方法，其特征在于，所述方法还包括：
    在所述第一计时器超时的情况下，所述第一终端取消所述第一调度请求SR。
  12. 根据权利要求11所述的方法，其特征在于，所述在所述第一计时器超时的情况下，所述第一终端取消所述第一调度请求SR，包括：
    在所述第一计时器超时的情况下，如果满足第一条件，所述第一终端取消所述第一调度请求SR；其中，所述第一条件包括以下一个或多个：
    所述第一终端未接收到所述第一侧行链路资源；或者，
    所述第一终端未生成包含所述第一侧行链路CSI报告的媒体接入控制协议数据单元MAC PDU；或者，
    所述第一终端未发送所述包含所述第一侧行链路CSI报告的MAC PDU。
  13. 根据权利要求1所述的方法，其特征在于，在所述第一侧行链路CSI报告被触发之前，所述方法还包括：
    所述第一终端接收来自所述基站的配置授权；所述配置授权用于所述第一终端确定所述基站为所述第一终端配置的可用于传输所述侧行链路CSI报告的侧行链路资源。
  14. 根据权利要求13所述的方法，其特征在于，所述配置授权用于指示为所述第一终端配置的一个或多个侧行链路资源的信息；所述一个或多个侧行链路资源可用于传输所述侧行链路CSI报告；
    所述第一侧行链路资源为所述一个或多个侧行链路资源中的侧行链路资源。
  15. 根据权利要求13所述的方法，其特征在于，所述配置授权用于指示为所述第一终端配置的第二侧行链路资源的周期，所述方法还包括：
    若所述配置授权未激活，所述第一终端触发第二调度请求SR；
    所述第一终端根据第二SR配置在第二SR资源上向所述基站发送第二SR，所述第二SR配置和所述第二SR资源对应于用于请求激活所述配置授权的SR。
  16. 根据权利要求15所述的方法，其特征在于，所述第一终端向根据第二SR配置在第二SR资源上向所述基站发送第二SR之前，所述方法还包括：
    所述第一终端接收来自所述基站的第二SR配置标识，所述第二SR配置标识关联所述第二SR配置和所述第二SR资源。
  17. 根据权利要求1-16任一项所述的方法，其特征在于，在所述第一侧行链路信道状态信息CSI报告被触发之前，所述方法还包括：
    所述第一终端向所述基站发送第一消息，所述第一消息包括第一指示信息，所述 第一指示信息用于指示所述第一终端需要传输所述侧行链路CSI报告。
  18. 根据权利要求17所述的方法，其特征在于，所述第一消息包括辅助信息集合，所述辅助信息集合包含如下信息中的至少一项：所述第一侧行链路CSI报告的最大允许时延，所述第一侧行链路CSI报告的HARQ反馈的配置信息，所述第一侧行链路CSI报告的最大重传次数，传输所述第一侧行链路CSI报告的第一信令的长度，传输所述第一侧行链路CSI报告的周期和时间偏移值。
  19. 根据权利要求1-18任一项所述的方法，其特征在于，所述方法还包括：
    在侧行链路逻辑信道优先级处理过程中，所述第一终端确定承载所述第一侧行链路CSI报告的第一信令的优先级为最高优先级，或者所述第一信令的优先级为第一优先级。
  20. 根据权利要求1-19任一项所述的方法，其特征在于，所述方法还包括：
    当所述第一终端发送包含第一信令的MAC PDU的时刻与所述第一终端的第一制式的侧行链路通信的时刻冲突，所述第一终端发送所述包含第一信令的MAC PDU；或者，所述第一终端根据所述第一信令的第二优先级确定是否发送所述包含第一信令的MAC PDU，所述第一信令包括所述第一侧行链路CSI报告。
  21. 一种侧行链路信道状态信息报告的发送方法，其特征在于，包括：
    基站接收来自第一终端在第一调度请求SR资源上发送的第一SR，所述第一SR是在满足预设条件时触发的，所述第一SR对应第一SR配置，所述第一SR配置和第一SR资源对应用于请求传输侧行链路CSI报告的侧行链路资源的SR；
    所述基站向所述第一终端发送为所述第一终端配置的第一侧行链路资源；其中，所述第一侧行链路资源可用于传输所述侧行链路CSI报告。
  22. 根据权利要求21所述的方法，其特征在于，所述预设条件包括以下一个或多个：所述第一终端无所述侧行链路资源；或者，
    所述第一终端存在所述侧行链路资源且所述侧行链路资源无法承载所述第一侧行链路CSI报告的MAC CE和该MAC CE的报文头。
  23. 根据权利要求21或22所述的方法，其特征在于，所述基站接收来自所述第一终端在第一调度请求SR资源上发送的第一SR之前，所述方法还包括：
    所述基站向所述第一终端发送包括第一SR配置标识的第二消息；其中，所述第一SR配置标识与所述第一SR配置和所述第一SR资源关联。
  24. 一种通信装置，其特征在于，包括：收发器和处理器，
    在第一侧行链路信道状态信息CSI报告被触发的情况下，所述处理器，用于获取基站为所述装置配置的第一侧行链路资源；其中，所述第一侧行链路资源可用于传输侧行链路CSI报告；
    所述收发器，用于在所述第一侧行链路资源上向第二终端发送所述第一侧行链路CSI报告，所述第一侧行链路CSI报告用于向第二终端反馈所述装置和所述第二终端之间的侧行链路的CSI。
  25. 根据权利要求24所述的装置，其特征在于，在所述第一侧行链路CSI报告被触发的情况下，以及满足预设条件时，所述处理器，用于触发第一调度请求SR；
    所述收发器，用于根据第一SR配置在第一SR资源上向所述基站发送所述第一 SR，所述第一SR配置和所述第一SR资源对应用于请求传输侧行链路CSI报告的侧行链路资源的SR。
  26. 根据权利要求25所述的装置，其特征在于，所述预设条件包括以下一个或多个：
    所述通信装置无所述侧行链路资源；或者，
    所述通信装置存在所述侧行链路资源且所述侧行链路资源无法承载所述第一侧行链路CSI报告的MAC CE和该MAC CE的报文头。
  27. 根据权利要求25或26所述的装置，其特征在于，所述收发器，还用于接收来自所述基站的第二消息，所述第二消息包括第一SR配置标识，所述第一SR配置标识与所述第一SR配置和所述第一SR资源关联。
  28. 根据权利要求25-27任一项所述的装置，其特征在于，所述处理器，还用于在生成包含所述第一侧行链路CSI报告的MAC PDU的情况下，取消所述第一调度请求SR。
  29. 根据权利要求25-28任一项所述的装置，其特征在于，所述收发器，还用于接收所述第二终端发送的PC5-RRC消息；所述PC5-RRC消息中包括所述第一侧行链路CSI报告的最大允许时延。
  30. 根据权利要求25-29任一项所述的装置，其特征在于，所述处理器，还用于在所述第一侧行链路CSI报告被触发的情况下，开启第一计时器；所述第一计时器的长度为所述第一侧行链路CSI报告的最大允许时延。
  31. 根据权利要求30所述的装置，其特征在于，在所述第一计时器超时的情况下，所述处理器，还用于取消所述第一侧行链路CSI报告。
  32. 根据权利要求31所述的装置，其特征在于，在所述第一计时器超时的情况下，如果满足第一条件，所述处理器，具体用于取消所述第一侧行链路CSI报告；其中，所述第一条件包括以下一个或多个：
    所述收发器未接收到所述第一侧行链路资源；或者，所述处理器未生成包含所述第一侧行链路CSI报告的媒体接入控制协议数据单元MAC PDU；或者，所述收发器未发送所述包含所述第一侧行链路CSI报告的MAC PDU。
  33. 根据权利要求24-32任一项所述的装置，其特征在于，所述处理器，还用于在第一计时器运行期间，如果满足第二条件，停止所述第一计时器；所述第二条件包括以下一个或多个：
    所述收发器接收到所述第一侧行链路资源；或者，所述处理器生成包含所述第一侧行链路CSI报告的MAC PDU；或者，所述收发器已发送所述包含所述第一侧行链路CSI报告的MAC PDU。
  34. 根据权利要求30所述的装置，其特征在于，在所述第一计时器超时的情况下，所述处理器，还用于取消所述第一调度请求SR。
  35. 根据权利要求34所述的装置，其特征在于，在所述第一计时器超时的情况下，如果满足第一条件，所述处理器，具体用于取消所述第一调度请求SR；其中，所述第一条件包括以下一个或多个：
    所述通信装置未接收到所述第一侧行链路资源；或者，
    所述通信装置未生成包含所述第一侧行链路CSI报告的媒体接入控制协议数据单元MAC PDU；或者，
    所述通信装置未发送所述包含所述第一侧行链路CSI报告的MAC PDU。
  36. 根据权利要求24所述的装置，其特征在于，在所述第一侧行链路CSI报告被触发前，所述收发器，用于接收来自所述基站的配置授权；所述配置授权用于所述处理器确定所述基站为所述装置配置的可用于传输所述侧行链路CSI报告的侧行链路资源。
  37. 根据权利要求36所述的装置，其特征在于，所述配置授权用于指示为所述装置配置的一个或多个侧行链路资源的信息；所述一个或多个侧行链路资源可用于传输所述侧行链路CSI报告；
    所述第一侧行链路资源为所述一个或多个侧行链路资源中的侧行链路资源。
  38. 根据权利要求36所述的装置，其特征在于，所述配置授权用于指示为所述装置配置的第二侧行链路资源的周期，在第一侧行链路信道状态信息CSI报告被触发的情况下，所述处理器，还用于若所述配置授权未激活，触发第二调度请求SR；
    所述收发器，用于根据第二SR配置在第二SR资源上向所述基站发送第二SR，所述第二SR配置和所述第二SR资源对应于用于请求激活所述配置授权的SR。
  39. 根据权利要求38所述的装置，其特征在于，所述收发器，还用于接收来自所述基站的第二SR配置标识，所述第二SR配置标识关联所述第二SR配置和所述第二SR资源。
  40. 根据权利要求24-39任一项所述的装置，其特征在于，在第一侧行链路信道状态信息CSI报告被触发之前，所述收发器，还用于向所述基站发送第一消息，所述第一消息包括第一指示信息，所述第一指示信息用于指示所述装置需要传输所述侧行链路CSI报告。
  41. 根据权利要求40所述的装置，其特征在于，所述第一消息包括辅助信息集合，所述辅助信息集合包含如下信息中的至少一项：所述第一侧行链路CSI报告的最大允许时延，所述第一侧行链路CSI报告的HARQ反馈的配置信息，所述第一侧行链路CSI报告的最大重传次数，传输所述第一侧行链路CSI报告的第一信令的长度，传输所述第一侧行链路CSI报告的周期和时间偏移值。
  42. 根据权利要求24-41任一项所述的装置，其特征在于，所述处理器，还用于在侧行链路逻辑信道优先级处理过程中，确定承载所述第一侧行链路CSI报告的第一信令的优先级为最高优先级，或者所述第一信令的优先级为第一优先级。
  43. 根据权利要求24-42任一项所述的装置，其特征在于，当所述收发器发送包含第一信令的MAC PDU的时刻与所述装置的第一制式的侧行链路通信的时刻冲突，所述收发器发送所述包含第一信令的MAC PDU；或者，所述处理器用于根据所述第一信令的第二优先级确定是否发送所述包含第一信令的MAC PDU，所述第一信令包括所述第一侧行链路CSI报告。
  44. 一种基站，其特征在于，包括：收发器；
    所述收发器，用于接收来自第一终端在第一调度请求SR资源上发送的第一SR，所述第一SR是在满足预设条件时触发的，所述第一SR对应第一SR配置，所述第一 SR配置和第一SR资源对应用于请求传输侧行链路CSI报告的侧行链路资源的SR；
    所述收发器，还用于向所述第一终端发送为所述第一终端配置的第一侧行链路资源；其中，所述第一侧行链路资源可用于传输所述侧行链路CSI报告。
  45. 根据权利要求44所述的基站，其特征在于，所述预设条件包括以下一个或多个：所述第一终端无所述侧行链路资源；或者，
    所述第一终端存在所述侧行链路资源且所述侧行链路资源无法承载所述第一侧行链路CSI报告的MAC CE和该MAC CE的报文头。
  46. 根据权利要求44或者45所述的基站，其特征在于，所述收发器，还用于向所述第一终端发送包括第一SR配置标识的第二消息；其中，所述第一SR配置标识与所述第一SR配置和所述第一SR资源关联。
  47. 一种芯片，其特征在于，所述芯片包括至少一个处理器和通信接口，所述通信接口和所述至少一个处理器耦合，所述至少一个处理器用于运行计算机程序或指令，以实现如权利要求1-20中任一项所述的侧行链路信道状态信息CSI报告的发送方法，所述通信接口用于与所述芯片之外的其它模块进行通信。
  48. 一种芯片，其特征在于，所述芯片包括至少一个处理器和通信接口，所述通信接口和所述至少一个处理器耦合，所述至少一个处理器用于运行计算机程序或指令，以实现如权利要求21-23中任一项所述的侧行链路信道状态信息报告的发送方法，所述通信接口用于与所述芯片之外的其它模块进行通信。
  49. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有指令，当所述指令被运行时，实现上述权利要求1-20中任一项所述的侧行链路信道状态信息CSI报告的发送方法。
  50. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有指令，当所述指令被运行时，实现上述权利要求21-23中任一项所述的侧行链路信道状态信息报告的发送方法。
  51. 一种通信系统，其特征在于，包括：如权利要求24-43任一项所述的通信装置以及如权利要求44-46任一项所述的基站。
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