WO2021088910A1 - 旁链路csi上报控制方法、旁链路csi上报方法及相关设备 - Google Patents

旁链路csi上报控制方法、旁链路csi上报方法及相关设备 Download PDF

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Publication number
WO2021088910A1
WO2021088910A1 PCT/CN2020/126667 CN2020126667W WO2021088910A1 WO 2021088910 A1 WO2021088910 A1 WO 2021088910A1 CN 2020126667 W CN2020126667 W CN 2020126667W WO 2021088910 A1 WO2021088910 A1 WO 2021088910A1
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Prior art keywords
csi
side link
configuration information
reporting
target
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PCT/CN2020/126667
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English (en)
French (fr)
Inventor
鲍炜
杨晓东
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维沃移动通信有限公司
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Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to BR112022008814A priority Critical patent/BR112022008814A2/pt
Priority to KR1020227017046A priority patent/KR20220086645A/ko
Priority to JP2022525900A priority patent/JP7475443B2/ja
Priority to EP20884901.8A priority patent/EP4044471A4/en
Publication of WO2021088910A1 publication Critical patent/WO2021088910A1/zh
Priority to US17/735,921 priority patent/US20220264551A1/en

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    • 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
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H04L1/0675—Space-time coding characterised by the signaling
    • H04L1/0693—Partial feedback, e.g. partial channel state information [CSI]
    • 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
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • 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
    • H04W72/23—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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • 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 present disclosure relates to the field of communication technology, and in particular to a side-link channel state information (Channel State Information), a CSI reporting control method, a side-link CSI reporting method and related equipment.
  • a side-link channel state information Channel State Information
  • CSI reporting control method CSI reporting control method
  • side-link CSI reporting method CSI reporting method and related equipment.
  • the embodiments of the present disclosure provide a side-link CSI reporting control method, a side-link CSI reporting method, and related equipment to solve the problem of low transmission efficiency of side-link transmission.
  • embodiments of the present disclosure provide a method for controlling side link channel state information CSI reporting, which is applied to the sender of side link transmission, and includes:
  • the embodiments of the present disclosure also provide a method for reporting side link channel state information CSI, which is applied to the receiving end of side link transmission, and includes:
  • the embodiments of the present disclosure also provide a method for reporting side link channel state information CSI, which is applied to network equipment, and includes:
  • the sending end when sending the side link CSI configuration information to the sending end, forwards the side link CSI configuration information to the receiving end of the side link transmission through a PC5 radio resource control RRC message,
  • the side link CSI configuration information is used for the target CSI reported by the receiving end.
  • an embodiment of the present disclosure also provides a terminal, where the terminal is a sender of side link transmission, and includes:
  • the first sending module is configured to send a PC5 radio resource control RRC message to the receiving end of side link transmission, where the PC5 radio resource control RRC message carries side link channel state information CSI configuration information;
  • the first receiving module is configured to receive the target CSI reported by the receiving end based on the sidelink CSI configuration information.
  • embodiments of the present disclosure also provide a terminal, where the terminal is a receiving end of side link transmission, and includes:
  • the second receiving module is configured to receive the PC5 radio resource control RRC message sent by the sender of the side link transmission, where the PC5 radio resource control RRC message carries side link channel state information CSI configuration information;
  • the second sending module is configured to report the target CSI to the sending end according to the side link CSI configuration information.
  • the embodiments of the present disclosure also provide a network device, including:
  • the third sending module is configured to send the side link channel state information CSI configuration information to the sending end of the side link transmission;
  • the sending end when sending the side link CSI configuration information to the sending end, forwards the side link CSI configuration information to the receiving end of the side link transmission through a PC5 radio resource control RRC message,
  • the side link CSI configuration information is used for the target CSI reported by the receiving end.
  • the embodiments of the present disclosure also provide a terminal, including: a memory, a processor, and a program stored on the memory and capable of running on the processor, the program being executed when the processor is executed.
  • a terminal including: a memory, a processor, and a program stored on the memory and capable of running on the processor, the program being executed when the processor is executed.
  • the embodiments of the present disclosure also provide a network device, including: a memory, a processor, and a program stored on the memory and capable of running on the processor.
  • a network device including: a memory, a processor, and a program stored on the memory and capable of running on the processor.
  • the program is executed by the processor, The steps in the control method for reporting side link channel state information CSI are implemented.
  • embodiments of the present disclosure also provide a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the above-mentioned side link channel state information CSI reporting is achieved The steps of the control method, or the steps of the method for reporting side link channel state information CSI when the computer program is executed by the processor.
  • the sending end uses the PC5RRC message to send the side link CSI configuration information to the receiving end, thereby configuring the CSI reporting of the side link, and the receiving end can report the target CSI to the sending end based on the CSI configuration information.
  • the side link can support CSI reporting, so that the transmission parameters can be selected according to the actual link conditions when selecting the transmission parameters, thereby reducing the resource overhead while improving the transmission success rate. Therefore, the embodiments of the present disclosure improve the transmission efficiency of the side link transmission.
  • FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present disclosure
  • FIG. 2 is one of the flowcharts of a method for controlling sidelink CSI reporting provided by an embodiment of the present disclosure
  • FIG. 3 is a flowchart of a method for reporting sidelink CSI according to an embodiment of the present disclosure
  • FIG. 5 is one of the structural diagrams of a terminal provided by an embodiment of the present disclosure.
  • FIG. 6 is the second structural diagram of a terminal provided by an embodiment of the present disclosure.
  • FIG. 7 is a structural diagram of a network device provided by an embodiment of the present disclosure.
  • FIG. 8 is the third structural diagram of a terminal provided by an embodiment of the present disclosure.
  • Fig. 9 is a structural diagram of another network device provided by an embodiment of the present disclosure.
  • words such as “exemplary” or “for example” are used as examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present disclosure should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner.
  • the side-link CSI reporting control method, the side-link CSI reporting method and related equipment provided by the embodiments of the present disclosure can be applied to a wireless communication system.
  • the wireless communication system may be a 5G system, or an evolved Long Term Evolution (eLTE) system, or a subsequent evolved communication system.
  • eLTE evolved Long Term Evolution
  • FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present disclosure. As shown in FIG. 1, it includes a first terminal 11, a second terminal 12, and a network device 13, wherein the first terminal 11 And the second terminal 12 may be a user terminal or other terminal-side devices, such as a mobile phone, a tablet (Personal Computer), a laptop (Laptop Computer), a personal digital assistant (personal digital assistant, PDA), a mobile Internet device Terminal-side devices such as Mobile Internet Device (MID) or Wearable Device (Wearable Device), it should be noted that the specific types of the first terminal 11 and the second terminal 12 are not limited in the embodiments of the present disclosure.
  • a user terminal or other terminal-side devices such as a mobile phone, a tablet (Personal Computer), a laptop (Laptop Computer), a personal digital assistant (personal digital assistant, PDA), a mobile Internet device Terminal-side devices such as Mobile Internet Device (MID) or Wearable Device (Wearable Device), it should be noted that the specific types of the first terminal
  • the above-mentioned network equipment may be a 5G base station, or a base station of a later version, or a base station in other communication systems, or called Node B, Evolved Node B, or Transmission Reception Point (TRP), or access point ( Access Point, AP), or other vocabulary in the field, as long as the same technical effect is achieved, the network device is not limited to a specific technical vocabulary.
  • the aforementioned network device may be a master node (Master Node, MN) or a secondary node (Secondary Node, SN). It should be noted that, in the embodiments of the present disclosure, only a 5G base station is taken as an example, but the specific type of network equipment is not limited.
  • the first terminal 11 is the sender of the side link transmission
  • the second terminal 12 is the side link transmission. Receiving end.
  • the first terminal 12 may also serve as the receiving end of other side link transmissions.
  • FIG. 2 is a flowchart of a method for controlling CSI reporting of side link channel state information provided by an embodiment of the present disclosure. The method is applied to the sending end of side link transmission, as shown in FIG. 2, including the following step:
  • Step 201 Send a PC5 radio resource control RRC message to the receiving end of the side link transmission, where the PC5 radio resource control RRC message carries side link CSI configuration information;
  • Step 202 Receive the target CSI reported by the receiving end based on the sidelink CSI configuration information.
  • the transmitted resources may be scheduled and allocated by the network equipment, or the sending end may independently select the resources.
  • the sender decides the sending parameters and sends the data to the receiver.
  • the data can carry the reference signal.
  • the receiver can report the measurement result of the reference signal and other CSI as the target CSI to the sender.
  • the terminal can better adjust the transmission parameters according to the reported target CSI, thereby improving the transmission success rate and resource efficiency.
  • the target CSI reported by the receiving end may be periodic reporting, semi-continuous reporting, or aperiodic reporting, etc., which is not further limited here.
  • the more appropriate signaling that carries CSI configuration information may be PC5RRC configuration or reconfiguration signaling. It should be understood that the above-mentioned CSI configuration information can be sent separately or together with other configurations, which is not further limited here.
  • the foregoing side link CSI configuration information includes at least one of the following:
  • CSI report content such as channel quality indicator (CQI) and precoding matrix indicator (PMI), etc.;
  • CQI channel quality indicator
  • PMI precoding matrix indicator
  • CSI reporting methods such as periodic reporting, semi-continuous reporting and non-periodic reporting, etc.
  • the number of CSI reports such as the measured reference signal granularity, including wideband, narrowband, and multiple measurement values
  • the reporting period and offset can be consistent with the reporting period.
  • the receiver can pre-allocate a certain reporting resource in advance for the receiver to directly use the resource to report to avoid Processes such as resource request and sensing (sensing).
  • the sending end uses the PC5RRC message to send the side link CSI configuration information to the receiving end, thereby configuring the CSI reporting of the side link, and the receiving end can report the target CSI to the sending end based on the CSI configuration information.
  • the side link can support CSI reporting, so that the transmission parameters can be selected according to the actual link conditions when selecting the transmission parameters, thereby reducing the resource overhead while improving the transmission success rate. Therefore, the embodiments of the present disclosure improve the transmission efficiency of the side link transmission.
  • the foregoing CSI configuration information may be determined in multiple manners. For example, it may be agreed by a protocol or determined based on pre-configuration information, and it may also be directly configured by a network device.
  • the method before performing the above step 201, the method further includes:
  • the above-mentioned pre-configuration information may be a rule or strategy for determining the side link CSI configuration information, which may be specifically obtained through service layer transfer, or may be obtained by the sending end in a connected state.
  • the pre-configuration information may also be the CSI configuration used after the disconnection obtained by the sender in the connected state.
  • a rule or strategy for determining the side link CSI configuration information can be agreed, and the side link CSI configuration information can also be directly agreed through the protocol.
  • the pre-configuration information or the configuration information agreed by the protocol is the rule or strategy for determining the side link CSI configuration information
  • the sender can autonomously determine the side link CSI configuration information according to the rule or strategy according to its own algorithm.
  • the foregoing network device is the network device to which the sender belongs, that is, the network device currently accessed by the sender. Since the side link CSI configuration information can be determined through pre-configuration information and protocol agreement, it can be applied to the sending end that is offline and the sending end that is in an idle state or an inactive state. Of course, the sender in the idle state or inactive state may also enter the connected state and receive the side link CSI configuration information sent by the network device. Therefore, the flexibility of the sending end to determine the side link CSI configuration information is improved.
  • the manner in which the network device sends the above-mentioned side link CSI configuration information can be set according to actual needs.
  • the network device can send through dedicated radio resource control RRC signaling or system information block SIB.
  • the side link CSI configuration information includes: receiving the side-link CSI configuration information sent by the network device through dedicated radio resource control RRC signaling or system information block SIB.
  • a network device when a network device uses SIB to send side-link CSI configuration information, it can send different CSI configuration information. For example, it can specifically send the correspondence between CSI configuration, service and resource conditions, and the sending end can be based on its own situation. Choose the appropriate side link CSI configuration information for your own situation.
  • step 202 the method further includes:
  • the network device may send the Uu interface transmission parameter configuration to the sending end, and the Uu interface transmission parameter configuration is used by the sending end to send the Uu interface transmission parameter configuration to the sending end.
  • the network device reports the target parameter used by the target CSI.
  • the network device can forward the target CSI to the network device on the target resource based on the Uu interface transmission parameter configuration.
  • the transmitting end may multiplex and report the CSI reported by multiple receiving ends, or may separately report the CSI reported by each receiving end, which is not further limited here.
  • the aforementioned target resource can be any of the following:
  • the resource indicated by the network device through the first control signaling where the first control signaling is Layer 1 (L1) or Medium Access Control (MAC) signaling;
  • L1 Layer 1
  • MAC Medium Access Control
  • the resource requested by the uplink scheduling is the resource requested by the uplink scheduling.
  • the sending end may also control the report of the receiving end by sending control signaling to the receiving end.
  • the method also included:
  • the second control signaling may be MAC signaling.
  • the second control signaling includes at least one of the following:
  • the first indication information used to distinguish different semi-continuous reports
  • LCIDs logical channel identifiers
  • MAC CE payload The fields in the access control control unit payload (MAC CE payload) have different values to distinguish different semi-continuous reporting instructions.
  • the above-mentioned second indication information may be a sidelink link ID (sidelink link ID), transmission type (cast type), destination address ID (destination ID), etc.
  • the above measurement range may specifically refer to a cell, a frequency point, a bandwidth part (Bandwidth Part, BWP), a resource pool, and so on.
  • BWP bandwidth part
  • the above semi-persistent configuration identifier for example, if 5 semi-persistent reports are configured in RRC signaling, 5 bits can be used to correspond to these 5 groups of configurations respectively.
  • the value bit 1 on the corresponding bit represents activation, and the value bit 0 represents go activate.
  • the second control signaling includes at least one of the following:
  • the third indication information used to distinguish different aperiodic trigger status entries.
  • the foregoing second control signaling can be determined autonomously by the sender, or can be determined by the network device.
  • the specific reporting control can be controlled by the sender. It can also be controlled by the network device to which the sender belongs.
  • the sending the second control signaling to the receiver includes:
  • the second control signaling may be sent through L1 or MAC.
  • the above-mentioned side link CSI configuration information may include periodic reporting resources, and the periodic reporting resources are used for periodic CSI reporting or semi-persistent CSI reporting.
  • the side link CSI configuration information received by the sending end is sent by the network device through the SIB message
  • all terminals may read it. It is the same configuration. If the period and offset are both fixed, interference will be caused.
  • a certain way can be used to stagger the offset so that different receivers can report CSI at different locations to avoid mutual interference.
  • the offset can be randomly selected. For example, it can be selected based on the location of the terminal, or based on the terminal identification.
  • the aforementioned target CSI may include:
  • the reported CSI content may include the coded value of the CQI result, etc.
  • the side link CSI configuration information is sent to the receiving end through the sending end.
  • the side link CSI configuration information may also be sent directly to the receiving end for the network device.
  • the embodiments of the present disclosure also provide a method for controlling side link channel state information CSI reporting, which is applied to the sending end of side link transmission, and includes:
  • the target configuration information sent by the receiving end is received, where the target configuration information is the side link CSI configuration information Part of the configuration information of, where the target configuration information is used to confirm that the receiving end supports CSI reporting;
  • the target configuration information carries periodic reporting resources, and the periodic reporting resources are used for periodic CSI reporting or semi-persistent CSI reporting.
  • the sending end determines the CSI report content and reporting method
  • the CSI report content and reporting method may be sent to the receiving end. If there is a requirement for periodic or semi-continuous reporting, the receiving end needs to request or reserve the corresponding periodic or semi-persistent resources. Only after success, the completion signaling is fed back to the sending end. Optionally, it can be notified at the same time Resource location.
  • the request or reservation of periodic resources or semi-persistent resources can be the receiving end initiates a request to its own home network equipment, requesting the request or reservation of periodic resources or semi-persistent resources corresponding to the report, and the home network equipment agrees and allocates it to After the receiving end, the receiving end UE feeds back the success and/or resource location to the sending end.
  • the behavior of the receiving end includes the following steps:
  • Target configuration information is part of the configuration information of the side link CSI configuration information, and the target configuration information is used to confirm that the receiving end supports CSI reporting;
  • the side link CSI configuration information sent by the network device is received through the receiving end, and part of the configuration information used to confirm that the receiving end supports CSI reporting is sent to the sending end.
  • the side link can support CSI reporting, so that the transmission parameters can be selected according to the actual link conditions when selecting the transmission parameters, thereby reducing the resource overhead while improving the transmission success rate. Therefore, the embodiments of the present disclosure improve the transmission efficiency of the side link transmission.
  • the sidelink link it is the data transmission between the terminal and the terminal.
  • a data transmission there is a sending end and a receiving end.
  • the sending end determines the sending parameters and sends the data to the receiving end.
  • the data can carry the reference signal, and the receiving end can target the measurement results of the reference signal and other CSI.
  • the CSI is reported to the sending end, and the sending end can better adjust the sending parameters according to the reported target CSI, thereby improving the sending success rate and resource efficiency.
  • this embodiment takes one direction as an example to illustrate the configuration and execution process of CSI reporting.
  • the CSI reporting described in the following scheme 1 and scheme 2 can be understood as a sidelink CSI report, and the CSI configuration can be understood as a sidelink CSI configuration.
  • Solution 1 The sending end sends the CSI configuration information to the receiving end through PC5RRC signaling.
  • PC5RRC configuration PC5RRC configuration or reconfiguration signaling.
  • CSI reporting is required when at least one sidelink data radio bearer (Sidelink Data Radio Bearer, Sidelink DRB) connection is established. Therefore, the CSI configuration information can be combined and sent with the sidelink DRB configuration or addition message, or of course it can also be sent separately.
  • Sidelink DRB Sidelink Data Radio Bearer
  • the sending end UE Since the sending end UE is more aware of the service type and resource pool situation, it is more reasonable for the sending end UE to configure the CSI information to the receiving end UE.
  • the CSI configuration information of the UE at the transmitting end includes the following contents or combinations:
  • sidelink For the frequency information of CSI measurement resources, such as broadband, narrowband, measurement range and number, sidelink also has some special considerations, such as which resource pool the measurement is aimed at, what bandwidth granularity is measured in the resource pool, and how many measurement quantities are formed;
  • Reporting methods such as periodic reporting, semi-continuous reporting, and non-periodic reporting.
  • the periodic report generally carries the period length and the offset, and optionally can carry the pre-allocated resource configuration for reporting, and the resource matches the period length and the offset of the periodic report.
  • Semi-continuous reporting is similar to periodic reporting.
  • the reporting period length and offset also need to be configured.
  • Optional matching periodic resources are used for this reporting.
  • the difference between semi-continuous reporting and periodic reporting is that semi-continuous reporting is generally after configuration
  • dynamic signaling is sent to the receiving end, for example, MAC or L1 signaling is used to activate the semi-continuous report, which is no longer needed in the future, and can also be deactivated.
  • periodic reporting does not require dynamic signaling for control. Once configured, the reporting starts to be executed periodically until the configuration is cancelled.
  • Aperiodic reporting needs to specify the trigger mode, one trigger mode: triggered by dynamic signaling at the sender. For example, MAC or L1 signaling is sent to the receiving end when it needs to be reported, thereby triggering the receiving end to report.
  • Another trigger method set some trigger conditions. For example, meeting a certain threshold, meeting the threshold for a certain period of time, etc., are defined as meeting the trigger condition, and the receiving end will report.
  • a typical implementation is that when the sender establishes the first Sidelink DRB, it sends the CSI configuration information to the receiver, and then the receiver reports the configuration information according to the configuration information.
  • the sender based on the dynamic signaling control of the sender, perform corresponding CSI reporting (because some CSI reporting configurations require further triggering by the sender, the report will be performed, such as aperiodic reporting and semi-continuous reporting dynamically indicated by the sender, etc. ).
  • the method for determining the CSI configuration information of the transmitting end UE may include any of the following:
  • Manner 1 The home base station of the sender sends the CSI configuration to the sender through RRC dedicated signaling.
  • the CSI reporting semi-persistent resource when the CSI reporting semi-persistent resource is configured, since the semi-persistent CSI reporting needs to rely on the sender to dynamically indicate to the receiver when to activate/deactivate, if this activation/deactivation is determined by the sender itself, It is necessary to inform the base station of activation/deactivation information so that the base station can grasp the resource usage and occupation status in real time, so as to better configure other resources. If this activation/deactivation is determined by the base station, for example, the base station schedules the resources used by the sender, then after the base station sends an indication to the sender, the sender then informs the receiver, and the reported information also needs to be sent from the receiver to the sender. Then the sending end sends it to the base station for subsequent scheduling decisions of the base station.
  • the offline sender can obtain the CSI configuration according to some pre-configuration methods.
  • the pre-configuration method can be passed through the service layer, or it can be factory configuration, or obtained when the sender is in the connected state. Pre-configuration information after going offline.
  • Manner 2 The home base station of the sender sends the CSI configuration to the sender through the SIB message;
  • the SIB message can send different CSI configurations, as well as the corresponding relationship between the CSI configuration and the service and resource conditions.
  • the sending end selects the appropriate configuration according to its own situation.
  • this CSI configuration is a common configuration, all terminals may read the same configuration. If the period and offset are fixed, interference will be caused. A certain method can be used to stagger the offset to make the difference.
  • the receiving end of CSI reports CSI at different locations to avoid mutual interference.
  • the offset can be randomly selected. For example, it can be selected based on the location of the terminal, or based on the terminal identification.
  • Method 3 the sender decides the CSI configuration by itself.
  • the transmitting UE when the transmitting UE cannot obtain the CSI configuration from the network side, it can also determine the CSI configuration by itself according to its own algorithm.
  • the method that can be adopted is to sort or code the reported items, and only the serial number is reflected in the reported content.
  • the value 0 of field 1 represents the CQI of subband 1
  • 1 represents the CQI of subband 2
  • n-1 represents the CQI of subband n
  • the value of field 2 represents CQI
  • the value 1 represents RSRP, etc.
  • CQI tables are standard or predefined.
  • RRC signaling only needs to configure which table to use for encoding, and then use the encoded content to replace specific CQI measurements.
  • Values for example, 000 refers to the CQI range r1-f2, 001 refers to the CQI range r2-r3, 010 refers to the CQI range r3-r4, and so on.
  • Solution 2 The receiving UE sends part of the CSI configuration information to the sending UE for confirmation through PC5RRC signaling.
  • CSI reporting is the behavior of the receiving end, especially the reporting resources it uses, it can also be determined by the receiving end to a certain extent and fed back to the sending end.
  • the core of this solution is that the receiving end feeds back part of the CSI-related configuration to the sending end.
  • the sending end decides the CSI report content and reporting method, and sends it to the receiving end.
  • the receiving end needs to request or reserve corresponding periodic resources or semi-persistent resources. Only after success, the completion signaling is fed back to the sender.
  • the resource location can be notified at the same time.
  • the request or reservation of periodic resources or semi-persistent resources can be that the receiving end initiates a request to its own home base station, requesting the request or reservation of periodic resources or semi-persistent resources corresponding to the report, and the home base station agrees and configures it to the receiving end After that, the receiving end feeds back the success and/or resource location to the sending end.
  • the CSI report refers to the CSI report sent by the receiving end to the transmitting end, which can also be referred to as a sidelink CSI report.
  • CSI reporting usually includes periodic reporting, aperiodic reporting, and semi-continuous reporting. among them:
  • the receiving end can trigger the corresponding CSI report at a certain moment according to the configured period and offset. If the CSI report has a dedicated pre-configured resource, the pre-configured resource is used for the report, if no pre-configuration is carried For resources, request to the network or choose from the resource pool. Since resources are periodically used for CSI reporting, the simplest and most efficient way is to have a corresponding periodic resource (referring to the same period and offset). Requesting dedicated periodic resources from the network side is the most feasible way to obtain the network After the periodic resource authorization on the side, the resource location information can be sent to the sending end, so that the sending end can receive the CSI report at that location.
  • the periodic resource will also need to be activated/deactivated with the activation/deactivation of the semi-continuous reporting.
  • the way to save overhead and delay is that although the reporting is semi-continuous, resources can be reserved periodically; the other is that resources are activated/deactivated with the semi-continuous reporting, and the receiving end activates/stops according to the sending end. Use instructions to activate/deactivate instructions to the network. During the deactivation period, resources are not ruled out for other ways to improve efficiency.
  • the main purpose of the MAC CE of the sidelink interface is to report different CSI content, as well as the activation/deactivation indication of semi-continuous reporting, and the triggering of non-periodic reporting.
  • MAC CE when used for semi-continuous reporting of activation/deactivation instructions, it may include the following content or a combination:
  • the first indication information is used to distinguish different semi-persistent reports.
  • Different LCIDs can be used in the subheader to indicate activation and deactivation of different semi-persistent reports.
  • Different values of the fields in the MAC CE payload can also be used to distinguish Different semi-continuous reporting instructions;
  • the second indication information is used to distinguish sidelink links, such as sidelink link ID, cast type, destination ID, etc.;
  • Reported measurement range such as cell, frequency, BWP and resource pool, etc.
  • Semi-persistent configuration identifier for example, if 5 semi-persistent reports are configured in RRC signaling, 5 bits can be used to correspond to these 5 groups of configurations respectively.
  • the value bit 1 on the corresponding bit bit represents activation, and the value bit 0 represents deactivation. .
  • MAC CE When MAC CE is used to trigger aperiodic reporting, it can include the following:
  • the second indication information is used to distinguish sidelink links, such as sidelink link ID, cast type, destination ID, etc.;
  • the reported measurement range such as cell, frequency, BWP, resource pool, etc.
  • the third indication information is used to distinguish different non-periodic trigger status entries, for example, in conjunction with RRC signaling, consider different code points, and indicate specific trigger information.
  • the configuration and reporting process of the CSI of the PC5 interface are described in detail. Since the transmitting end is likely to work in the mode1 resource allocation mode, that is, the base station controls the resources and scheduling of the transmitting end. In this case, after the sending end receives the CSI report information, it needs to forward it to its own home base station, so that the home base station can better schedule sidelink resources. In other words, the sender needs to be configured to report the relevant reporting parameters of the sidelink CSI on the Uu interface, and perform sidelink CSI reporting on the Uu interface.
  • the Uu interface reports the sidelink CSI information
  • the most direct way is to configure the CSI information by the home base station of the sender.
  • the home base station of the transmitting end generally controls resource scheduling, so the sidelink CSI configuration information is also determined by the base station.
  • the sidelink CSI configuration information is sent to the transmitting end UE, it can also be used for Uu port sidelink CSI configuration information mainly includes the following possible implementation schemes:
  • the Uu interface CSI report if it is periodic CSI, the Uu interface CSI report, if the resources are allocated periodically, it should match the sidelink CSI report, that is, the period is the same, and the offset needs to consider certain transmission and processing delays, such as sidelink
  • the receiving end on the interface reports periodic CSI to the sending end at time t, then the sending end UE forwards the periodic CSI to its home base station at time t+k, where k is the required reception and processing delay, or dynamic scheduling is adopted
  • the sidelink CSI report of the Uu interface is completed by means of resources.
  • the activation/deactivation command should be sent from the home base station to the sending end first, and then sent from the sending end to the receiving end, so the home base station has a clearer picture of when to start/stop semi-persistent CSI reporting. You only need to configure the resources for CSI reporting on the Uu interface, which can be allocated periodically. Similarly, it should match the semi-continuous reporting of sidelink CSI, that is, the period is the same, and the offset needs to consider certain transmission and processing delays.
  • the receiving end on the sidelink interface reports periodic CSI to the sending end at time t, then the sending end forwards the periodic CSI to its home base station at time t+k, where k is the required receiving and processing delay, or
  • the way of dynamically scheduling resources completes the semi-continuous sidelink CSI reporting of the Uu interface.
  • the command to trigger aperiodic CSI reporting should be sent from the home base station to the sender first, and then sent from the sender to the receiver. Therefore, the home base station is clear about when to report aperiodic CSI and can be reserved
  • the resources of the sidelink interface and the Uu interface are sent to the sending end in the form of L1/MAC signaling, and the sending end sends the sidelink interface resources to the receiving end for aperiodic reporting of the CSI of the sidelink interface. After receiving the CSI report from the opposite end, the sending end uses the previously allocated Uu interface resources to forward the reported information to the base station.
  • the sidelink CSI reported from different receivers can be multiplexed and sent.
  • the sidelink link needs to be identified in the CSI information, one or a combination of the following: sidelink link ID, cast type, destination ID, etc.
  • FIG. 3 is a flowchart of another method for reporting side link channel state information CSI according to an embodiment of the present disclosure. The method is applied to the receiving end of side link transmission, as shown in FIG. 3, including the following step:
  • Step 301 Receive a PC5 radio resource control RRC message sent by the sender of the side link transmission, where the PC5 radio resource control RRC message carries side link CSI configuration information;
  • Step 302 reports the target CSI to the sending end according to the side link CSI configuration information.
  • the method further includes:
  • the reporting target CSI to the transmitting end according to the sidelink CSI configuration information includes:
  • the second control signaling is MAC signaling.
  • the second control signaling includes at least one of the following:
  • the first indication information used to distinguish different semi-continuous reports
  • the second control signaling includes at least one of the following:
  • the third indication information used to distinguish different aperiodic trigger status entries.
  • the side link CSI configuration information includes periodic reporting resources, and the periodic reporting resources are used to configure periodic CSI reporting or semi-persistent CSI reporting.
  • the target CSI is carried on the MAC CE.
  • the target CSI includes:
  • this embodiment is used as an implementation of the receiving end corresponding to the embodiment shown in FIG. 2.
  • FIG. 4 is a flowchart of another method for controlling CSI reporting of side link channel state information provided by an embodiment of the present disclosure.
  • the method is applied to a network device, which is the home network device of the sender, as shown in the figure. As shown in 4, it includes the following steps:
  • Step 401 Send side-link CSI configuration information to the sender of side-link transmission;
  • the sending end when sending the side link CSI configuration information to the sending end, forwards the side link CSI configuration information to the receiving end of the side link transmission through a PC5 radio resource control RRC message,
  • the side link CSI configuration information is used for the target CSI reported by the receiving end.
  • the side link CSI configuration information is carried in dedicated radio resource control RRC signaling or system information block SIB.
  • the method further includes:
  • the Uu interface transmission parameter configuration is sent to the sending end, where the Uu interface transmission parameter configuration is used by the sending end to report the target parameter used by the target CSI to the network device.
  • the method further includes:
  • the target resource is any one of the following:
  • the network device sends the resource indicated by the first control signaling through layer 1 or media access control;
  • the resource requested by the uplink scheduling is the resource requested by the uplink scheduling.
  • the method further includes:
  • the second control signaling is MAC signaling.
  • the second control signaling includes at least one of the following:
  • the first indication information used to distinguish different semi-continuous reports
  • the second control signaling includes at least one of the following:
  • the third indication information used to distinguish different aperiodic trigger status entries.
  • the side link CSI configuration information includes periodic reporting resources, and the periodic reporting resources are used for periodic CSI reporting or semi-persistent CSI reporting.
  • this embodiment is used as an implementation manner of a network device corresponding to the embodiment shown in FIG. 2.
  • this embodiment is used as an implementation manner of a network device corresponding to the embodiment shown in FIG. 2.
  • specific implementation manners please refer to the related description of the embodiment shown in FIG. 2 and achieve the same beneficial effects. In order to avoid Repeat the description, so I won’t repeat it here.
  • FIG. 5 is a structural diagram of a terminal provided by an embodiment of the present disclosure.
  • the terminal is the sending end of side link transmission.
  • the terminal 500 includes:
  • the first sending module 501 is configured to send a PC5 radio resource control RRC message to the receiving end of side link transmission, where the PC5 radio resource control RRC message carries side link channel state information CSI configuration information;
  • the first receiving module 502 is configured to receive the target CSI reported by the receiving end based on the sidelink CSI configuration information.
  • the terminal 500 further includes a first determining module, configured to determine the side-link CSI configuration information according to pre-configuration information or protocol agreement; or, the first receiving module 502 is also configured to receive a transmission from a network device CSI configuration information of the side link.
  • a first determining module configured to determine the side-link CSI configuration information according to pre-configuration information or protocol agreement; or, the first receiving module 502 is also configured to receive a transmission from a network device CSI configuration information of the side link.
  • the first receiving module 502 is specifically configured to receive the side link CSI configuration information sent by the network device through dedicated radio resource control RRC signaling or system information block SIB.
  • the first sending module 501 is further configured to: forward the target CSI to the network device on the target resource according to the Uu interface transmission parameter configuration sent by the network device.
  • the target resource is any one of the following:
  • the resource indicated by the network device through the first control signaling where the first control signaling is layer 1 or media access control MAC signaling;
  • the resource requested by the uplink scheduling is the resource requested by the uplink scheduling.
  • the first sending module 501 is further configured to send second control signaling to the receiving end, where the second control signaling is used to instruct the receiving end to report the target CSI.
  • the second control signaling is MAC signaling.
  • the second control signaling includes at least one of the following:
  • the first indication information used to distinguish different semi-continuous reports
  • the second control signaling includes at least one of the following:
  • the third indication information used to distinguish different aperiodic trigger status entries.
  • the sending second control signaling to the receiving end includes:
  • the side link CSI configuration information includes periodic reporting resources, and the periodic reporting resources are used for periodic CSI reporting or semi-persistent CSI reporting.
  • the target CSI reported by the receiving end is carried in the MAC CE.
  • the target CSI includes:
  • the terminal provided by the embodiment of the present disclosure can implement the various processes implemented by the sending end of the side link transmission in the method embodiment of FIG. 2. To avoid repetition, details are not described herein again.
  • FIG. 6 is a structural diagram of a terminal provided by an embodiment of the present disclosure.
  • the terminal is the receiving end of side link transmission.
  • the terminal 600 includes:
  • the second receiving module 601 is configured to receive the PC5 radio resource control RRC message sent by the sender of the side link transmission, where the PC5 radio resource control RRC message carries side link channel state information CSI configuration information;
  • the second sending module 602 is configured to report target CSI to the sending end according to the sidelink CSI configuration information.
  • the terminal 600 further includes a second determining module configured to receive second control signaling sent by the transmitting end, where the second control signaling is used to instruct the receiving end to report the target CSI.
  • the second determining module is further configured to determine the reported target CSI according to the side link CSI configuration information
  • the second sending module 602 is further configured to report the target CSI to the sending end according to the indication of the sidelink CSI configuration information or the indication of the second control signaling.
  • the second control signaling is MAC signaling.
  • the second control signaling includes at least one of the following:
  • the first indication information used to distinguish different semi-continuous reports
  • the second control signaling includes at least one of the following:
  • the third indication information used to distinguish different aperiodic trigger status entries.
  • the side link CSI configuration information includes periodic reporting resources, and the periodic reporting resources are used to configure periodic CSI reporting or semi-persistent CSI reporting.
  • the target CSI is carried on the MAC CE.
  • the target CSI includes:
  • the terminal provided in the embodiment of the present disclosure can implement each process implemented by the receiving end of the side link transmission in the method embodiment of FIG. 3, and to avoid repetition, details are not described herein again.
  • FIG. 7 is a structural diagram of a network device provided by an embodiment of the present disclosure.
  • the network device is the home network device of the sender of side link transmission.
  • the network device 700 includes:
  • the third sending module 701 is configured to send side link channel state information CSI configuration information to the sending end of side link transmission;
  • the sending end when sending the side link CSI configuration information to the sending end, forwards the side link CSI configuration information to the receiving end of the side link transmission through a PC5 radio resource control RRC message,
  • the side link CSI configuration information is used for the target CSI reported by the receiving end.
  • the side link CSI configuration information is carried in dedicated radio resource control RRC signaling or system information block SIB.
  • the third sending module 701 is further configured to: send a Uu interface transmission parameter configuration to the sending end, and the Uu interface transmission parameter configuration is used by the sending end to report the target CSI to the network device.
  • the third sending module 701 is further configured to: after sending the Uu interface transmission parameter configuration to the sending end, receive the target resource forwarded by the sending end according to the Uu interface transmission parameter configuration on the target resource. CSI.
  • the target resource is any one of the following:
  • the network device sends the resource indicated by the first control signaling through layer 1 or media access control;
  • the resource requested by the uplink scheduling is the resource requested by the uplink scheduling.
  • the third sending module is further configured to:
  • the second control signaling is MAC signaling.
  • the second control signaling includes at least one of the following:
  • the first indication information used to distinguish different semi-continuous reports
  • the second control signaling includes at least one of the following:
  • the third indication information used to distinguish different aperiodic trigger status entries.
  • the side link CSI configuration information includes periodic reporting resources, and the periodic reporting resources are used for periodic CSI reporting or semi-persistent CSI reporting.
  • the terminal provided by the embodiment of the present disclosure can implement the various processes implemented by the network device in the method embodiment of FIG.
  • FIG. 8 is a schematic diagram of the hardware structure of a terminal for implementing various embodiments of the present disclosure.
  • the terminal 800 includes but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, a processor 810, and a power supply 811 and other components.
  • a radio frequency unit 801 includes but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, a processor 810, and a power supply 811 and other components.
  • the terminal structure shown in FIG. 8 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange different components.
  • the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal,
  • the radio frequency unit 801 is configured to send a PC5 radio resource control RRC message to the receiving end of side link transmission, where the PC5 radio resource control RRC message carries side link CSI configuration information; the receiving end is based on the side link The target CSI reported by the CSI configuration information.
  • the radio frequency unit 801 is configured to receive the PC5 radio resource control RRC message sent by the sender of the side link transmission, where the PC5 radio resource control RRC message carries side link CSI configuration information; according to the side link CSI configuration The information reports the target CSI to the sending end.
  • processor 810 and radio frequency unit 801 can implement each process implemented by the terminal in the method embodiments of FIG. 2 and FIG. 3, and to avoid repetition, details are not described herein again.
  • the radio frequency unit 801 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, after receiving the downlink data from the base station, it is processed by the processor 810; Uplink data is sent to the base station.
  • the radio frequency unit 801 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 801 can also communicate with the network and other devices through a wireless communication system.
  • the terminal provides users with wireless broadband Internet access through the network module 802, such as helping users to send and receive emails, browse web pages, and access streaming media.
  • the audio output unit 803 may convert the audio data received by the radio frequency unit 801 or the network module 802 or stored in the memory 809 into audio signals and output them as sounds. Moreover, the audio output unit 803 may also provide audio output related to a specific function performed by the terminal 800 (for example, call signal reception sound, message reception sound, etc.).
  • the audio output unit 803 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 804 is used to receive audio or video signals.
  • the input unit 804 may include a graphics processing unit (GPU) 8041 and a microphone 8042, and the graphics processor 8041 is used to capture images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode.
  • the data is processed.
  • the processed image frame may be displayed on the display unit 806.
  • the image frame processed by the graphics processor 8041 may be stored in the memory 809 (or other storage medium) or sent via the radio frequency unit 801 or the network module 802.
  • the microphone 8042 can receive sound and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be sent to a mobile communication base station via the radio frequency unit 801 for output in the case of a telephone call mode.
  • the terminal 800 also includes at least one sensor 805, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 8061 according to the brightness of the ambient light.
  • the proximity sensor can close the display panel 8061 and/or when the terminal 800 is moved to the ear. Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify terminal gestures (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc.; sensor 805 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared Sensors, etc., will not be repeated here.
  • the display unit 806 is used to display information input by the user or information provided to the user.
  • the display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • the user input unit 807 can be used to receive inputted number or character information, and generate key signal input related to user settings and function control of the terminal.
  • the user input unit 807 includes a touch panel 8071 and other input devices 8072.
  • the touch panel 8071 also called a touch screen, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 8071 or near the touch panel 8071. operating).
  • the touch panel 8071 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 810, the command sent by the processor 810 is received and executed.
  • the touch panel 8071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave.
  • the user input unit 807 may also include other input devices 8072.
  • other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.
  • the touch panel 8071 can be overlaid on the display panel 8061.
  • the touch panel 8071 detects a touch operation on or near it, it transmits it to the processor 810 to determine the type of the touch event, and then the processor 810 determines the type of the touch event according to the touch.
  • the type of event provides corresponding visual output on the display panel 8061.
  • the touch panel 8071 and the display panel 8061 are used as two independent components to realize the input and output functions of the terminal, in some embodiments, the touch panel 8071 and the display panel 8061 can be integrated. Realize the input and output functions of the terminal, the specifics are not limited here.
  • the interface unit 808 is an interface for connecting an external device with the terminal 800.
  • the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc.
  • the interface unit 808 can be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the terminal 800 or can be used to communicate between the terminal 800 and the external device. Transfer data between.
  • the memory 809 can be used to store software programs and various data.
  • the memory 809 may mainly include a program storage area and a data storage area.
  • the program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data created by the use of mobile phones (such as audio data, phone book, etc.), etc.
  • the memory 809 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor 810 is the control center of the terminal. It uses various interfaces and lines to connect various parts of the entire terminal. It executes by running or executing software programs and/or modules stored in the memory 809 and calling data stored in the memory 809. Various functions of the terminal and processing data, so as to monitor the terminal as a whole.
  • the processor 810 may include one or more processing units; preferably, the processor 810 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface and application programs, etc., the modem The processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 810.
  • the terminal 800 may also include a power supply 811 (such as a battery) for supplying power to various components.
  • a power supply 811 such as a battery
  • the power supply 811 may be logically connected to the processor 810 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system.
  • the terminal 800 includes some functional modules not shown, which will not be repeated here.
  • the embodiment of the present disclosure further provides a terminal, including a processor 810, a memory 809, a computer program stored in the memory 809 and running on the processor 810, and the computer program is executed when the processor 810 is executed.
  • a terminal including a processor 810, a memory 809, a computer program stored in the memory 809 and running on the processor 810, and the computer program is executed when the processor 810 is executed.
  • FIG. 9 is a structural diagram of another network device provided by an embodiment of the present disclosure.
  • the network device 900 includes: a processor 901, a transceiver 902, a memory 903, and a bus interface, in which:
  • the transceiver 902 is configured to send side-link CSI configuration information to the sending end of the side-link transmission;
  • the sending end when sending the side link CSI configuration information to the sending end, forwards the side link CSI configuration information to the receiving end of the side link transmission through a PC5 radio resource control RRC message,
  • the side link CSI configuration information is used for the target CSI reported by the receiving end.
  • processor 901 and transceiver 902 can implement each process implemented by the network device in the method embodiment of FIG. 4, and to avoid repetition, details are not described herein again.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 901 and various circuits of the memory represented by the memory 903 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein.
  • the bus interface provides the interface.
  • the transceiver 902 may be a plurality of elements, that is, including a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium.
  • the user interface 904 may also be an interface that can externally and internally connect the required equipment.
  • the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 901 is responsible for managing the bus architecture and general processing, and the memory 903 can store data used by the processor 901 when performing operations.
  • the embodiment of the present disclosure further provides a network device, including a processor 901, a memory 903, and a computer program stored in the memory 903 and running on the processor 901.
  • a network device including a processor 901, a memory 903, and a computer program stored in the memory 903 and running on the processor 901.
  • the computer program is executed by the processor 901
  • Each process of the embodiment of the control method for reporting side link channel state information CSI on the network device side is implemented, and the same technical effect can be achieved. In order to avoid repetition, details are not repeated here.
  • the embodiment of the present disclosure also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
  • a computer program is executed by a processor, the side link channel state information provided by the embodiment of the present disclosure is realized at the sending end.
  • Each process of the CSI reporting control method embodiment, or when the computer program is executed by a processor, realizes each process of the CSI control method embodiment of the side link channel state information on the receiving end provided by the embodiment of the present disclosure, or the computer program is When the processor executes, each process of the embodiment of the method for controlling CSI reporting of side link channel state information on the network device side provided by the embodiment of the present disclosure is implemented, and the same technical effect can be achieved. To avoid repetition, details are not described herein again.
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk, or optical disk, etc.
  • the technical solution of the present disclosure essentially or the part that contributes to the related technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk).
  • a terminal which can be a mobile phone, a computer, a server, an air conditioner, or a base station, etc.

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Abstract

本公开提供一种旁链路CSI上报控制方法、旁链路CSI上报方法及相关设备，该旁链路CSI上报控制方法包括：向旁链路传输的接收端发送PC5无线资源控制RRC消息，所述PC5无线资源控制RRC消息携带了旁链路CSI配置信息；接收所述接收端基于所述旁链路CSI配置信息上报的目标CSI。

Description

旁链路CSI上报控制方法、旁链路CSI上报方法及相关设备
相关申请的交叉引用
本申请主张在2019年11月6日在中国提交的中国专利申请号No.201911078551.9的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种旁链路信道状态信息(Channel State Information)，CSI上报控制方法、旁链路CSI上报方法及相关设备。
背景技术
在相关技术中的V2X旁链路(sidelink)传输中，由于以广播业务为主，且缺乏PC5无线资源控制(Radio Resource Control，RRC)信令的支持，所以无法进行CSI的上报。从而无法获得链路状态信息，在选择发送参数时无法根据实际链路情况进行选择，容易出现在资源浪费或者传输失败的问题，从而使得旁链路传输的传输效率较低。
发明内容
本公开实施例提供一种旁链路CSI上报控制方法、旁链路CSI上报方法及相关设备，以解决旁链路传输的传输效率较低的问题。
第一方面，本公开实施例提供一种旁链路信道状态信息CSI上报控制方法，应用于旁链路传输的发送端，包括：
向旁链路传输的接收端发送PC5无线资源控制RRC消息，所述PC5无线资源控制RRC消息携带了旁链路CSI配置信息；
接收所述接收端基于所述旁链路CSI配置信息上报的目标CSI。
第二方面，本公开实施例还提供一种旁链路信道状态信息CSI上报方法，应用于旁链路传输的接收端，包括：
接收旁链路传输的发送端发送的PC5无线资源控制RRC消息，所述PC5无线资源控制RRC消息携带了旁链路CSI配置信息；
根据所述旁链路CSI配置信息向所述发送端上报目标CSI。
第三方面，本公开实施例还提供一种旁链路信道状态信息CSI上报控制方法，应用于网络设备，包括：
向旁链路传输的发送端发送旁链路CSI配置信息；
其中，当向所述发送端发送所述旁链路CSI配置信息时，所述发送端通过PC5无线资源控制RRC消息向所述旁链路传输的接收端转发所述旁链路CSI配置信息，所述旁链路CSI配置信息用于供所述接收端上报的目标CSI。
第四方面，本公开实施例还提供一种终端，所述终端为旁链路传输的发送端，包括：
第一发送模块，用于向旁链路传输的接收端发送PC5无线资源控制RRC消息，所述PC5无线资源控制RRC消息携带了旁链路信道状态信息CSI配置信息；
第一接收模块，用于接收所述接收端基于所述旁链路CSI配置信息上报的目标CSI。
第五方面，本公开实施例还提供一种终端，所述终端为旁链路传输的接收端，包括：
第二接收模块，用于接收旁链路传输的发送端发送的PC5无线资源控制RRC消息，所述PC5无线资源控制RRC消息携带了旁链路信道状态信息CSI配置信息；
第二发送模块，用于根据所述旁链路CSI配置信息向所述发送端上报目标CSI。
第六方面，本公开实施例还提供一种网络设备，包括：
第三发送模块，用于向旁链路传输的发送端发送旁链路信道状态信息CSI配置信息；
其中，当向所述发送端发送所述旁链路CSI配置信息时，所述发送端通过PC5无线资源控制RRC消息向所述旁链路传输的接收端转发所述旁链路CSI配置信息，所述旁链路CSI配置信息用于供所述接收端上报的目标CSI。
第七方面，本公开实施例还提供一种终端，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执 行时实现上述旁链路信道状态信息CSI上报控制方法中的步骤，或者所述程序被所述处理器执行时实现上述旁链路信道状态信息CSI上报方法中的步骤。
第八方面，本公开实施例还提供一种网络设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现上述旁链路信道状态信息CSI上报控制方法中的步骤。
第九方面，本公开实施例还提供一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现上述旁链路信道状态信息CSI上报控制方法的步骤，或者所述计算机程序被处理器执行时实现上述旁链路信道状态信息CSI上报方法的步骤。
本公开实施例，发送端利用PC5RRC消息向接收端发送旁链路CSI配置信息，从而对旁链路的CSI上报进行了配置，接收端可以基于该CSI配置信息向发送端上报目标CSI。这样使得旁链路可以支持CSI上报，从而在选择发送参数时可以根据实际链路情况进行选择，进而在提升发送成功率的基础上同时降低资源开销。因此本公开实施例提高了旁链路传输的传输效率。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本公开实施例可应用的一种网络系统的结构图；
图2是本公开实施例提供的一种旁链路CSI上报控制方法的流程图之一；
图3是本公开实施例提供的一种旁链路CSI上报方法的流程图；
图4是本公开实施例提供的一种旁链路CSI上报控制方法的流程图之二；
图5是本公开实施例提供的一种终端的结构图之一；
图6是本公开实施例提供的一种终端的结构图之二；
图7是本公开实施例提供的一种网络设备的结构图；
图8是本公开实施例提供的一种终端的结构图之三；
图9是本公开实施例提供的另一种网络设备的结构图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
本申请的说明书和权利要求书中的术语“包括”以及它的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外，说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一，例如A和/或B，表示包含单独A，单独B，以及A和B都存在三种情况。
在本公开实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本公开实施例中被描述为“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它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。
下面结合附图介绍本公开的实施例。本公开实施例提供的一种旁链路CSI上报控制方法、旁链路CSI上报方法及相关设备可以应用于无线通信系统中。该无线通信系统可以为5G系统，或者演进型长期演进(Evolved Long Term Evolution，eLTE)系统，或者后续演进通信系统。
请参见图1，图1是本公开实施例可应用的一种网络系统的结构图，如图1所示，包括第一终端11、第二终端12和网络设备13，其中，第一终端11和第二终端12可以是用户终端或者其他终端侧设备，例如：手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(personal digital assistant，PDA)、移动上网装置(Mobile Internet Device，MID)或可穿戴式设备(Wearable Device)等终端侧设备，需要说明的是，在本公开实施例中并不限定第一终端11和第二终端12的具体类型。上述网络设备可以是5G基站，或者以后版本的基站，或者其他通信系统中的基站，或者称之为节点B，演进节点B，或者发送接收点(Transmission Reception Point， TRP)，或者接入点(Access Point，AP)，或者所述领域中其他词汇，只要达到相同的技术效果，所述网络设备不限于特定技术词汇。另外，上述网络设备可以是主节点(Master Node，MN)，或者辅节点(Secondary Node，SN)。需要说明的是，在本公开实施例中仅以5G基站为例，但是并不限定网络设备的具体类型。
可选的，在图1中，针对第一终端12到第二终端13的旁链路传输，上述第一终端11为旁链路传输的发送端，上述第二终端12为旁链路传输的接收端。当然在其他旁链路传输中，第一终端12还可以作为其他旁链路传输的接收端。
请参见图2，图2是本公开实施例提供的一种旁链路信道状态信息CSI上报控制方法的流程图，该方法应用于旁链路传输的发送端，如图2所示，包括以下步骤：
步骤201，向旁链路传输的接收端发送PC5无线资源控制RRC消息，所述PC5无线资源控制RRC消息携带了旁链路CSI配置信息；
步骤202，接收所述接收端基于所述旁链路CSI配置信息上报的目标CSI。
本公开实施例中，在旁链路传输中，传输的资源可以由网络设备调度分配，也可以由发送端自主选择资源。在一次旁链路传输中，发送端决定发送参数，将数据发送给接收端，数据中可以携带参考信号，接收端能够将参考信号的测量结果和其他的CSI作为目标CSI上报给发送端，发送端根据上报的目标CSI可以更好的调整发送参数，从而提升发送成功率和资源效率。
其中，上述接收端上报目标CSI可以是周期性上报、半持续上报或非周期性上报等，在此不做进一步的限定。
由于在PC5连接中，并没有像Uu接口很严格的维护PC5RRC连接建立和状态维护过程，PC5信令过程，目前以能力交互和配置信息为主。因此本实施例中，携带CSI配置信息的信令较为合适的信令可以为PC5RRC配置或者重配置信令。应理解，上述CSI配置信息可以单独发送，也可以和其他配置一起发送，在此不做进一步的限定。
可选的，上述旁链路CSI配置信息包括以下至少一项：
CSI上报内容，例如信道质量指示(Channel quality indicator，CQI)和预 编码矩阵指示(Precoding matrix indicator，PMI)等；
CSI上报方式，例如周期性上报，半持续上报和非周期上报等；
CSI上报数量，例如测量的参考信号粒度，包括宽带、窄带和多个测量值等；
CSI上报的资源位置，如果是周期性上报或者半持续上报，则跟上报的周期和偏移量一致可以给接收端提前预分配一定的上报资源，用于接收端直接用该资源进行上报，避免了资源请求和监测(sensing)等过程。
本公开实施例，发送端利用PC5RRC消息向接收端发送旁链路CSI配置信息，从而对旁链路的CSI上报进行了配置，接收端可以基于该CSI配置信息向发送端上报目标CSI。这样使得旁链路可以支持CSI上报，从而在选择发送参数时可以根据实际链路情况进行选择，进而在提升发送成功率的基础上同时降低资源开销。因此本公开实施例提高了旁链路传输的传输效率。
可选的，上述CSI配置信息的确定方式可以包括多种，例如，可以通过协议约定，或者根据预配置信息确定，还可以直接由网络设备进行配置。换句话说，在本公开实施例中，执行上述步骤201之前，该方法还包括：
根据预配置信息或协议约定确定所述旁链路CSI配置信息；
或者，接收网络设备发送的所述旁链路CSI配置信息。
在一实施例中，上述预配置信息可以为确定旁链路CSI配置信息的规则或者策略，具体可以是通过业务层的传递获得，也可以是发送端在连接态时获得。在另一实施例中，预配置信息还可以是发送端在连接态时获得的脱网之后使用的CSI配置。在另一实施例中，当采用协议约定时，可以约定用于确定旁链路CSI配置信息的规则或者策略，还可以通过协议直接约定旁链路CSI配置信息。当采用预配置信息或者协议约定的配置信息为确定旁链路CSI配置信息的规则或者策略时，发送端可以根据该规则或者策略按照自身的算法自主决定旁链路CSI配置信息。
应理解，上述网络设备为发送端归属的网络设备，即发送端当前接入的网络设备。由于可以通过预配置信息和协议约定确定旁链路CSI配置信息，从而可以应用于脱网的发送端以及处于空闲(Idle)态或非激活(inactive)态的发送端。当然处于空闲(Idle)态或非激活(inactive)态的发送端，也可以 进入连接(Connected)态后接收网络设备发送的所述旁链路CSI配置信息。因此提高了发送端确定旁链路CSI配置信息的灵活性。
可选的，网络设备发送上述旁链路CSI配置信息的方式可以根据实际需要进行设置，在一可选实施例中，所述网络设备可以通过专用无线资源控制RRC信令或者系统信息块SIB发送所述旁链路CSI配置信息。换句话说，接收网络设备发送的所述旁链路CSI配置信息包括：接收网络设备通过专用无线资源控制RRC信令或者系统信息块SIB发送的所述旁链路CSI配置信息。
需要说明的是，当网络设备采用SIB发送旁链路CSI配置信息时，可以发送不同的CSI配置信息，例如，具体可以发送CSI配置、业务和资源情况的对应关系，发送端可以根据自身的情况自身的情况选择合适的旁链路CSI配置信息。
进一步的，在一可选实施例中，在步骤202之后，所述方法还包括：
根据网络设备发送的Uu接口传输参数配置，在目标资源上向所述网络设备转发所述目标CSI。
本公开实施例中，当旁链路传输的资源由网络设备调度，则网络设备可以向所述发送端发送Uu接口传输参数配置，所述Uu接口传输参数配置用于所述发送端向所述网络设备上报所述目标CSI所用的目标参数。此时网络设备在接收到目标CSI后，可以基于该Uu接口传输参数配置在目标资源上向网络设备转发目标CSI。具体的，发送端可以对多个接收端上报的CSI进行复用上报，也可以针对每一接收端上报的CSI进行单独上报，在此不做进一步的限定。
其中，上述目标资源可以为以下任一项：
预先周期分配的资源；
网络设备通过第一控制信令指示的资源，其中所述第一控制信令为层1(L1)或媒体接入控制(Medium Access Control，MAC)信令；
上行调度请求的资源。
进一步的，当接收端上报上述目标CSI为半持续性上报或者非周期性上报时，发送端还可以通过向接收端发送控制信令控制接收端的上报，具体的，本实施例中，在上述步骤201之前，该方法还包括：
向所述接收端发送第二控制信令，所述第二控制信令用于指示所述接收端上报所述目标CSI。
可选的，在本实施例中，该第二控制信令可以为MAC信令。
在一可选实施例中，接收端采用半持续上报方式上报目标CSI时，第二控制信令包括以下至少一项：
用于区分不同的半持续上报的第一指示信息；
用于区分旁链路的第二指示信息；
上报的测量范围；
半持续配置标识。
可选的，对于上述第一指示信息，可以在子头(subheader)里使用不同的逻辑信道标识符(Logical Channel Identifier，LCID)，来区分不同半持续上报的激活去激活指示，也可以使用媒体接入控制控制单元有效载荷(MAC CE payload)里的域不同取值，来区分不同的半持续上报指示。
对于上述第二指示信息可以为旁链路的链路标识(sidelink link ID)、传输类型(cast type)和目标地址标识(destination ID)等。
对于上述测量范围具体可以指小区、频点、带宽部分(Bandwidth Part，BWP)和资源池等。
对于上述半持续配置标识，例如RRC信令里配置了5个半持续上报，则可以用5个bit分别对应这5组配置，相应的bit位上取值位1代表激活，取值位0代表去激活。
在另一可选实施例中，接收端采用非周期触发上报方式上报目标CSI时，第二控制信令包括以下至少一项：
用于区分旁链路的第二指示信息；
上报的测量范围；
用于区分不同的非周期触发状态条目的第三指示信息。
对于上述第三指示信息，例如与RRC信令配合，考虑不同的码点，指示具体触发信息。
应理解，上述第二控制信令可以由发送端自主确定，也可以由网络设备决定，换句话说，针对接收端非周期上报和半持续上报的情况，具体上报的 控制可以由发送端控制，也可以由发送端归属的网络设备进行控制，例如采用网络设备进行控制时，所述向所述接收端发送第二控制信令包括：
接收网络设备发送的第二控制信令；
向所述接收端转发所述第二控制信令。
可选的，网络设备发送第二控制信令时，该第二控制信令可以通过L1或MAC发送。
进一步的，上述旁链路CSI配置信息可以包括周期上报资源，所述周期上报资源用于周期性CSI上报或者半持续CSI上报。
应理解，在本公开实施例中，当发送端接收到的旁链路CSI配置信息为网络设备通过SIB消息发送的情况下，由于旁链路CSI配置信息属于公共配置，所有终端可能都读取的是相同的配置，如果周期和偏移都是固定的话，则会造成干扰，可以采取一定的方式将偏移量错开，以使不同的接收端在不同的位置进行CSI上报，避免彼此干扰，具体的，可以随机选择偏移量。例如可以根据终端位置选择，也可以根据终端标识选择等。
在一可选实施例中，上述目标CSI可以包括：
用于区分旁链路的第二指示信息；
上报的测量范围；
上报的CSI内容。
其中，上报的CSI内容可以包括CQI结果的编码值等。
需要说明的是，在上述实施例中，通过发送端发送旁链路CSI配置信息给接收端，在其他实施例中，还可以为网络设备直接将旁链路CSI配置信息发送给接收端。具体的，本公开实施例还提供了一种旁链路信道状态信息CSI上报控制方法，应用于旁链路传输的发送端，包括：
在接收旁链路传输的接收端接收到网络设备发送的旁链路CSI配置信息的情况下，接收所述接收端发送的目标配置信息，所述目标配置信息为所述旁链路CSI配置信息的部分配置信息，所述目标配置信息用于确认所述接收端支持CSI上报；
接收所述接收端基于所述旁链路CSI配置信息上报的目标CSI。
一可选实施例中，所述目标配置信息携带了周期上报资源，所述周期上 报资源用于周期性CSI上报或者半持续CSI上报。
可选的，发送端决定了CSI上报内容和上报方式的情况下，在接收到所述接收端发送的目标配置信息后，可以将CSI上报内容和上报方式发送给接收端。如果其中有周期性或者半持续上报的需求，则接收端需要进行相应的周期资源或者半持续资源的请求或者预留，只有成功之后，才向发送端反馈完成信令，可选的可以同时告知资源位置。其中周期资源或者半持续资源的请求或者预留，可以是接收端向自己的归属网络设备发起请求，要求与上报对应的周期资源或者半持续资源的请求或者预留，归属网络设备同意并配置给接收端之后，接收端UE向发送端反馈成功和/或资源位置。
对应的，本实施例中，接收端的行为包括以下步骤：
接收网络设备发送的旁链路CSI配置信息；
向旁链路传输的发送端发送目标配置信息，所述目标配置信息为所述旁链路CSI配置信息的部分配置信息，所述目标配置信息用于确认所述接收端支持CSI上报；
根据所述旁链路CSI配置信息向所述发送端上报目标CSI。
本公开实施例中，通过接收端接收网络设备发送的旁链路CSI配置信息，并将用于确认所述接收端支持CSI上报的部分配置信息发送给发送端。这样使得旁链路可以支持CSI上报，从而在选择发送参数时可以根据实际链路情况进行选择，进而在提升发送成功率的基础上同时降低资源开销。因此本公开实施例提高了旁链路传输的传输效率。
为了更好的理解本公开，以下通过不同的实现方案详细说明本公开的实现过程。
具体的，在sidelink链路中，是终端与终端之间进行的数据传输。在一次数据传输中，有一个发送端和一个接收端，发送端决定发送参数，将数据发送给接收端，数据中可以携带参考信号，接收端能够将参考信号的测量结果和其他的CSI作为目标CSI上报给发送端，发送端根据上报的目标CSI可以更好的调整发送参数，从而提升发送成功率和资源效率。需要注意的是，当在双向业务中，两个终端互相都有数据发送，则此时两个终端同时是发送端和接收端，但对于一个方向的传输来看，发送端和接收端是固定的，本实施 例以一个方向为例，说明CSI上报的配置和执行过程。需要说明的是，在以下方案1和方案2中描述的CSI上报可以理解为sidelink CSI上报，CSI配置可以理解为sidelink CSI配置。
方案1，发送端通过PC5RRC信令将CSI配置信息发送给接收端。
由于在PC5连接中，并没有像Uu接口很严格的维护PC5RRC连接建立和状态维护过程，PC5信令过程，目前以能力交互和配置信息为主。比较适合携带CSI配置的信令为PC5RRC配置或者重配置信令，一般当至少建立起一条旁链路数据无线承载(Sidelink Data Radio Bearer，Sidelink DRB)连接时，才有需要进行CSI上报。因此CSI配置信息可以和sidelink DRB配置或者添加消息一起合并发送，当然也可以单独发送。
由于发送端UE更清楚业务的类型以及资源池情况，因此由发送端UE向接收端UE配置CSI信息是比较合理的。
发送端UE的CSI配置信息包含如下内容或者组合：
非周期性触发的状态信息列表；
上报对应的内容；
CSI测量资源的频率信息，例如宽带、窄带、测量范围和个数，sidelink还有一些特殊的考虑，例如测量针对哪个资源池，在资源池中以什么带宽粒度测量，形成多少个测量量等；
上报方式，例如周期性上报、半持续上报和非周期性上报。
其中，周期性上报一般携带周期长度和偏移量，可选的可以携带预分配的资源配置进行上报，该资源和周期上报的周期长度和偏移量匹配。
半持续上报与周期上报类似，也需要配置上报的周期长度和偏移量，可选的匹配的周期资源用于该上报，半持续上报与周期性上报的差别在于，半持续上报一般在配置之后处于去激活状态，在发送端需要上报时，向接收端发送动态信令，例如采用MAC或者L1信令来激活该半持续上报，后续不再需要，也可以去激活。而周期上报不需要动态信令进行控制，一旦配置好之后，就开始按照周期执行上报，直到取消该配置。
非周期上报需要规定触发的方式，一种触发方式：由发送端动态信令触发。例如MAC或者L1信令，在需要上报时，发送给接收端，从而触发接收 端上报。另一种触发方式：设定一些触发的条件。例如满足一定的门限，满足门限持续一定的时长等，定义为满足触发条件，则接收端进行上报。
一种典型的实现方式，就是发送端在建立第一个Sidelink DRB时，将CSI配置信息发送给接收端，之后接收端就按照配置信息上报。可选的，基于发送端动态信令控制，进行相应的CSI上报(由于部分CSI上报配置是需要发送端进一步触发，才会进行上报的，例如发送端动态指示的非周期上报和半持续上报等)。
进一步的，在方案1中，对于发送端UE的CSI配置信息的确定方式可以包括以下任一种：
方式1，发送端归属基站，通过RRC专用信令向发送端发送CSI配置。
对于方式1，一般适用于发送端处于连接态。当一个连接态的在需要进行sidelink业务传输时，一般会将自己的业务服务质量配置(QoS profile)上报给自己的归属基站，请求对应的旁链路无线承载(Sidelink Radio Bearer，SLRB)的配置和服务质量流(QoS flow)到SLRB的映射关系，以及相关的传输参数，也可以包括CSI配置。基站接收到请求时，根据业务和资源情况，向发送端发送对应的CSI配置。其中，需要注意的是，如果其中携带用于CSI上报的周期性或者半持续资源时，由于这些资源是接收端使用，而接收端有可能位于其它基站下，因此需要考虑基站之间对于资源控制的接口之间协调，保证不同的终端对能够无干扰且高效的使用CSI上报资源。
特别的，当配置的是CSI上报半持续资源时，由于半持续CSI上报需要依靠发送端向接收端进行动态指示何时激活/去激活，如果这种激活/去激活是发送端自行决定的，则需要将激活/去激活信息告知基站，以便于基站对资源使用占用情况进行实时掌握，从而更好的进行其它资源配置。如果这种激活/去激活是由基站决定的，例如基站调度发送端所使用的资源，那么基站发送给发送端指示之后，发送端再通知接收端，同时上报信息也需要由接收端发送给发送端，然后发送端再发送给基站，用于基站的后续调度决策。
还有一种是脱网发送端，脱网发送端可以根据一些预配置的方式，获得CSI配置，预配置方式可以是通过业务层传递，也可以是出厂配置，或者发送端处于连接态时获得的脱网之后的预配置信息。
方式2，发送端的归属基站，通过SIB消息向发送端发送CSI配置；
对于方式2，主要适用于Idle/inactive态的发送端。SIB消息可以发送不同的CSI配置，以及CSI配置和业务、资源情况的对应关系，发送端根据自身的情况，选择合适的配置。
由于这种CSI配置属于公共配置，所有终端可能都读取的是相同的配置，如果周期和偏移都是固定的话，则会造成干扰，可以采取一定的方式将偏移量错开，以使不同的接收端在不同的位置进行CSI上报，避免彼此干扰，具体的，可以随机选择偏移量。例如可以根据终端位置选择，也可以根据终端标识选择等。
方式3，发送端自行决定CSI配置。
对于方式3，当发送端UE无法从网络侧获得CSI配置时，也可以依据自身的算法，自行决定CSI配置。
需要说明的是，由于CSI上报的信息是比较多的，如果在上报信息中详细指示上报内容则开销非常大，因此可以采取的方式是对上报条目进行排序或者编码，在上报内容中只体现序号，用以替代具体条目。例如域1取值0代表子带1的CQI，1代表子带2的CQI····n-1代表子带n的CQI等，域2取值0代表CQI，取值1代表RSRP等。CQI的具体内容，也可以查不同的CQI table进行编码，CQI table是标准规定或者预定义的，RRC信令只需要配置使用哪个table进行编码，则后续使用编码之后的内容进行替代具体的CQI测量值，例如000指代CQI范围r1-f2,001指代CQI范围r2-r3，010指代CQI范围r3-r4等。
方案2，接收端UE通过PC5RRC信令将部分CSI配置信息发送给发送端UE确认。
一般来说，由发送端决定CSI配置是比较直接的方式，也能更好的考虑业务需求和发送需求。但由于CSI上报是接收端的行为，尤其是其使用的上报资源，一定程度上也可以由接收端进行决定，并反馈给发送端。
本方案的核心是接收端将部分CSI相关的配置反馈给发送端，一种可行的方式，例如发送端决定了CSI上报内容和上报方式，将其发送给接收端，如果其中有周期性或者半持续上报的需求，则接收端需要进行相应的周期资 源或者半持续资源的请求或者预留。只有成功之后，才向发送端反馈完成信令。可选的，可以同时告知资源位置。其中周期资源或者半持续资源的请求或者预留，可以是接收端向自己的归属基站发起请求，要求与上报对应的周期资源或者半持续资源的请求或者预留，归属基站同意并配置给接收端之后，接收端向发送端反馈成功和/或资源位置。
针对上述方案1和方案2，以下对CSI上报进行详细说明，该CSI上报是指接收端发送给发送端的，也可以称之为sidelink CSI上报。具体的，对于CSI上报通常包括周期性上报、非周期性上报和半持续上报。其中：
对于周期性上报，接收端可以根据配置的周期和偏移，在确定的时刻触发对应的CSI上报，如果该CSI上报有专用的预配置资源，则使用预配置资源进行上报，如果没有携带预配置资源，则采取向网络请求或者自行在资源池中选择。由于周期性使用资源进行CSI上报，则最简单高效的方式，是有一个与之对应的周期资源(指周期和偏移一致)，向网络侧请求专用的周期资源是最可行的方式，获得网络侧的周期性资源授权之后，可以将该资源位置信息发送给发送端，便于发送端在该位置接收CSI上报。
对于半持续CSI上报，由于其所用的资源本质上也是周期出现的，但会随着半持续上报的激活/去激活对该周期资源也同样需要激活/去激活状态。比较节省开销和时延的方式是虽然上报是半持续的，但资源可以周期性预留；另一种是资源也随着半持续上报的激活/去激活，由接收端根据发送端激活/停用指示向网络进行激活/去激活指示，在去激活时期，不排除资源被用作它途，以提升效率。
此外，需要说明的是，对于周期和半持续CSI上报，也可以采取动态请求或者抢占的方式，由接收端向自己的基站方式请求，或者监测，或者周期性使用预留资源，但半持续使用动态请求。由于周期或者半持续具有很强的时域特性，因此在请求或者监测时，可以提前进行，以缩短时延。
本公开实施例中，对于sidelink接口的MAC CE主要目的是进行不同CSI内容的上报，以及半持续上报的激活/去激活指示，非周期上报的触发。
其中，当MAC CE用于半持续上报激活/去激活指示时，可以包括以下内容或者组合：
第一指示信息，用于区分不同的半持续上报，可以在subheader里使用不同的LCID，用于不同半持续上报的激活去激活指示，也可以使用MAC CE payload里的域不同取值，来区分不同的半持续上报指示；
第二指示信息，用于区分sidelink链路，例如sidelink link ID、cast type和destination ID等；
上报的测量范围，例如小区、频点、BWP和资源池等；
半持续配置标识，例如RRC信令里配置了5个半持续上报，则可以用5个bit分别对应这5组配置，相应的bit位上取值位1代表激活，取值位0代表去激活。
当MAC CE用于非周期上报的触发时，可以包括以下内容：
第二指示信息，用于区分sidelink链路，例如sidelink link ID，cast type，destination ID等；
上报的测量范围，例如小区，频点，BWP，资源池等；
第三指示信息，用于区分不同的非周期触发状态条目，例如与RRC信令配合，考虑不同的码点，指示具体触发信息。
进一步的，上述实施例中，详细描述了PC5接口的CSI的配置和上报过程，由于发送端很可能工作在mode1的资源分配方式下，即由基站对发送端的资源和调度进行控制，在这种情况下，发送端接收到CSI上报信息之后，需要转发给自己的归属基站，以便于归属基站更好的调度sidelink资源。也就是说，发送端需要被配置在Uu接口上报sidelink CSI的相关上报所用参数，并执行sidelink CSI在Uu口的上报。
由于是Uu接口上报sidelink CSI信息，最直接的方式是由发送端的归属基站对该CSI信息进行配置。由于这种方式下，一般是发送端的归属基站进行资源调度的控制，因此sidelink CSI的配置信息也是由该基站决定的，那么在下发给发送端UE sidelink CSI的配置信息时，也可以携带用于Uu口进行sidelink CSI的配置信息，主要包括以下可能实现的方案：
如果是周期性CSI，则Uu接口CSI的上报，如果资源是周期性分配的，应该跟sidelink CSI的上报是匹配的，即周期一致，偏移量需要考虑一定的传输和处理时延，例如sidelink接口上接收端在时刻t上报周期性CSI给发送 端，那么发送端UE在时刻t+k转发该周期性CSI给其归属基站，其中k为所需要的接收和处理时延，或者采取动态调度资源的方式完成Uu接口的sidelink CSI上报。
如果是半持续CSI，那么激活/去激活指令，应该先从归属基站发送到发送端，再由发送端发送给接收端，因此归属基站对于何时开始/停止半持续CSI上报比较清楚。只需要在Uu接口配置CSI上报的资源，可以是周期性分配的，同样的，也应该跟sidelink CSI的半持续上报是匹配的，即周期一致，偏移量需要考虑一定的传输和处理时延，例如sidelink接口上接收端在时刻t上报周期性CSI给发送端，那么发送端在时刻t+k转发该周期性CSI给其归属基站，其中k为所需要的接收和处理时延，或者采取动态调度资源的方式完成Uu接口的半持续sidelink CSI上报。
如果是非周期CSI，那么触发非周期CSI上报的指令，应该先从归属基站发送到发送端，再由发送端发送给接收端，因此归属基站对于何时进行非周期CSI上报比较清楚，可以预留sidelink接口的资源和Uu接口的资源，以L1/MAC信令的方式，发送给发送端，再由发送端将sidelink接口资源发送给接收端，用于sidelink接口的CSI非周期性上报。发送端在接收到对端的CSI上报之后，使用之前被分配的Uu接口资源，将上报信息转发给基站。
针对发送端在Uu接口转发sidelink CSI时，可以将来自不同的接收端上报的sidelink CSI复用发送。此时，在CSI信息里就需要标识sidelink链路，如下一种或者组合：sidelink link ID、cast type和destination ID等。
请参见图3，图3是本公开实施例提供的另一种旁链路信道状态信息CSI上报方法的流程图，该方法应用于旁链路传输的接收端，如图3所示，包括以下步骤：
步骤301接收旁链路传输的发送端发送的PC5无线资源控制RRC消息，所述PC5无线资源控制RRC消息携带了旁链路CSI配置信息；
步骤302根据所述旁链路CSI配置信息向所述发送端上报目标CSI。
可选的，所述方法还包括：
接收所述发送端发送的第二控制信令，所述第二控制信令用于指示所述接收端上报所述目标CSI。
可选的，所述根据所述旁链路CSI配置信息向所述发送端上报目标CSI包括：
根据所述旁链路CSI配置信息确定所述上报目标CSI；
按照所述旁链路CSI配置信息的指示或者所述第二控制信令的指示向所述发送端上报所述目标CSI。
可选的，所述第二控制信令为MAC信令。
可选的，所述第二控制信令包括以下至少一项：
用于区分不同的半持续上报的第一指示信息；
用于区分旁链路的第二指示信息；
上报的测量范围；
半持续配置标识。
可选的，所述第二控制信令包括以下至少一项：
用于区分旁链路的第二指示信息；
上报的测量范围；
用于区分不同的非周期触发状态条目的第三指示信息。
可选的，所述旁链路CSI配置信息包括周期上报资源，所述周期上报资源用于配置周期性CSI上报或者半持续CSI上报。
可选的，所述目标CSI承载于MAC CE。
可选的，所述目标CSI包括：
用于区分旁链路的第二指示信息；
上报的测量范围；
上报的CSI内容。
需要说明的是，本实施例作为图2所示的实施例对应的接收端的实施方式，其具体的实施方式可以参见图2所示的实施例相关说明，以及达到相同的有益效果，为了避免重复说明，此处不再赘述。
请参见图4，图4是本公开实施例提供的另一种旁链路信道状态信息CSI上报控制方法的流程图，该方法应用于网络设备，该网络设备为发送端的归属网络设备，如图4所示，包括以下步骤：
步骤401，向旁链路传输的发送端发送旁链路CSI配置信息；
其中，当向所述发送端发送所述旁链路CSI配置信息时，所述发送端通过PC5无线资源控制RRC消息向所述旁链路传输的接收端转发所述旁链路CSI配置信息，所述旁链路CSI配置信息用于供所述接收端上报的目标CSI。
可选的，所述旁链路CSI配置信息承载于专用无线资源控制RRC信令或者系统信息块SIB。
可选的，所述方法还包括：
向所述发送端发送Uu接口传输参数配置，所述Uu接口传输参数配置用于所述发送端向所述网络设备上报所述目标CSI所用的目标参数。
可选的，所述向所述发送端发送Uu接口传输参数配置之后，所述方法还包括：
在目标资源上接收所述发送端根据Uu接口传输参数配置转发的所述目标CSI。
可选的，所述目标资源为以下任一项：
预先周期分配的资源；
网络设备通过层1或媒体接入控制发送第一控制信令指示的资源；
上行调度请求的资源。
可选的，所述方法还包括：
向所述发送端发送第二控制信令，所述第二控制信令用于指示所述接收端上报所述目标CSI。
可选的，所述第二控制信令为MAC信令。
可选的，所述第二控制信令包括以下至少一项：
用于区分不同的半持续上报的第一指示信息；
用于区分旁链路的第二指示信息；
上报的测量范围；
半持续配置标识。
可选的，所述第二控制信令包括以下至少一项：
用于区分旁链路的第二指示信息；
上报的测量范围；
用于区分不同的非周期触发状态条目的第三指示信息。
可选的，所述旁链路CSI配置信息包括周期上报资源，所述周期上报资源用于周期性CSI上报或者半持续CSI上报。
需要说明的是，本实施例作为图2所示的实施例对应的网络设备的实施方式，其具体的实施方式可以参见图2所示的实施例相关说明，以及达到相同的有益效果，为了避免重复说明，此处不再赘述。
请参见图5，图5是本公开实施例提供的一种终端的结构图，所述终端为旁链路传输的发送端，如图5所示，终端500包括：
第一发送模块501，用于向旁链路传输的接收端发送PC5无线资源控制RRC消息，所述PC5无线资源控制RRC消息携带了旁链路信道状态信息CSI配置信息；
第一接收模块502，用于接收所述接收端基于所述旁链路CSI配置信息上报的目标CSI。
可选的，所述终端500还包括第一确定模块，用于根据预配置信息或协议约定确定所述旁链路CSI配置信息；或者，所述第一接收模块502还用于接收网络设备发送的所述旁链路CSI配置信息。
可选的，所述第一接收模块502具体用于：接收网络设备通过专用无线资源控制RRC信令或者系统信息块SIB发送的所述旁链路CSI配置信息。
可选的，所述第一发送模块501还用于：根据网络设备发送的Uu接口传输参数配置，在目标资源上向所述网络设备转发所述目标CSI。
可选的，所述目标资源为以下任一项：
预先周期分配的资源；
网络设备通过第一控制信令指示的资源，其中所述第一控制信令为层1或媒体接入控制MAC信令；
上行调度请求的资源。
可选的，所述第一发送模块501还用于：向所述接收端发送第二控制信令，所述第二控制信令用于指示所述接收端上报所述目标CSI。
可选的，所述第二控制信令为MAC信令。
可选的，所述第二控制信令包括以下至少一项：
用于区分不同的半持续上报的第一指示信息；
用于区分旁链路的第二指示信息；
上报的测量范围；
半持续配置标识。
可选的，所述第二控制信令包括以下至少一项：
用于区分旁链路的第二指示信息；
上报的测量范围；
用于区分不同的非周期触发状态条目的第三指示信息。
可选的，所述向所述接收端发送第二控制信令包括：
接收网络设备发送的第二控制信令；
向所述接收端转发所述第二控制信令。
可选的，所述旁链路CSI配置信息包括周期上报资源，所述周期上报资源用于周期性CSI上报或者半持续CSI上报。
可选的，所述接收端上报的目标CSI承载于MAC CE。
可选的，所述目标CSI包括：
用于区分旁链路的第二指示信息；
上报的测量范围；
上报的CSI内容。
本公开实施例提供的终端能够实现图2的方法实施例中旁链路传输的发送端实现的各个过程，为避免重复，这里不再赘述。
请参见图6，图6是本公开实施例提供的一种终端的结构图，所述终端为旁链路传输的接收端，如图6所示，终端600包括：
第二接收模块601，用于接收旁链路传输的发送端发送的PC5无线资源控制RRC消息，所述PC5无线资源控制RRC消息携带了旁链路信道状态信息CSI配置信息；
第二发送模块602，用于根据所述旁链路CSI配置信息向所述发送端上报目标CSI。
可选的，所述终端600还包括第二确定模块，用于接收所述发送端发送的第二控制信令，所述第二控制信令用于指示所述接收端上报所述目标CSI。
可选的，第二确定模块还用于根据所述旁链路CSI配置信息确定所述上 报目标CSI；
所述第二发送模块602还用于：按照所述旁链路CSI配置信息的指示或者所述第二控制信令的指示向所述发送端上报所述目标CSI。
可选的，所述第二控制信令为MAC信令。
可选的，所述第二控制信令包括以下至少一项：
用于区分不同的半持续上报的第一指示信息；
用于区分旁链路的第二指示信息；
上报的测量范围；
半持续配置标识。
可选的，所述第二控制信令包括以下至少一项：
用于区分旁链路的第二指示信息；
上报的测量范围；
用于区分不同的非周期触发状态条目的第三指示信息。
可选的，所述旁链路CSI配置信息包括周期上报资源，所述周期上报资源用于配置周期性CSI上报或者半持续CSI上报。
可选的，所述目标CSI承载于MAC CE。
可选的，所述目标CSI包括：
用于区分旁链路的第二指示信息；
上报的测量范围；
上报的CSI内容。
本公开实施例提供的终端能够实现图3的方法实施例中旁链路传输的接收端实现的各个过程，为避免重复，这里不再赘述。
请参见图7，图7是本公开实施例提供的一种网络设备的结构图，所述网络设备为旁链路传输的发送端的归属网络设备，如图7所示，网络设备700包括：
第三发送模块701，用于向旁链路传输的发送端发送旁链路信道状态信息CSI配置信息；
其中，当向所述发送端发送所述旁链路CSI配置信息时，所述发送端通过PC5无线资源控制RRC消息向所述旁链路传输的接收端转发所述旁链路 CSI配置信息，所述旁链路CSI配置信息用于供所述接收端上报的目标CSI。
可选的，所述旁链路CSI配置信息承载于专用无线资源控制RRC信令或者系统信息块SIB。
可选的，所述第三发送模块701还用于：向所述发送端发送Uu接口传输参数配置，所述Uu接口传输参数配置用于所述发送端向所述网络设备上报所述目标CSI所用的目标参数。
可选的，所述第三发送模块701还用于：所述向所述发送端发送Uu接口传输参数配置之后，在目标资源上接收所述发送端根据Uu接口传输参数配置转发的所述目标CSI。
可选的，所述目标资源为以下任一项：
预先周期分配的资源；
网络设备通过层1或媒体接入控制发送第一控制信令指示的资源；
上行调度请求的资源。
可选的，所述第三发送模块还用于：
向所述发送端发送第二控制信令，所述第二控制信令用于指示所述接收端上报所述目标CSI。
可选的，所述第二控制信令为MAC信令。
可选的，所述第二控制信令包括以下至少一项：
用于区分不同的半持续上报的第一指示信息；
用于区分旁链路的第二指示信息；
上报的测量范围；
半持续配置标识。
可选的，所述第二控制信令包括以下至少一项：
用于区分旁链路的第二指示信息；
上报的测量范围；
用于区分不同的非周期触发状态条目的第三指示信息。
可选的，所述旁链路CSI配置信息包括周期上报资源，所述周期上报资源用于周期性CSI上报或者半持续CSI上报。
本公开实施例提供的终端能够实现图4的方法实施例中网络设备实现的 各个过程，为避免重复，这里不再赘述。
图8为实现本公开各个实施例的一种终端的硬件结构示意图，
该终端800包括但不限于：射频单元801、网络模块802、音频输出单元803、输入单元804、传感器805、显示单元806、用户输入单元807、接口单元808、存储器809、处理器810、以及电源811等部件。本领域技术人员可以理解，图8中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。在本公开实施例中，终端包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。
射频单元801，用于向旁链路传输的接收端发送PC5无线资源控制RRC消息，所述PC5无线资源控制RRC消息携带了旁链路CSI配置信息；接收所述接收端基于所述旁链路CSI配置信息上报的目标CSI。
或者，射频单元801，用于接收旁链路传输的发送端发送的PC5无线资源控制RRC消息，所述PC5无线资源控制RRC消息携带了旁链路CSI配置信息；根据所述旁链路CSI配置信息向所述发送端上报目标CSI。
应理解，本实施例中，上述处理器810和射频单元801能够实现图2和图3的方法实施例中终端实现的各个过程，为避免重复，这里不再赘述。
应理解的是，本公开实施例中，射频单元801可用于收发信息或通话过程中，信号的接收和发送，具体的，将来自基站的下行数据接收后，给处理器810处理；另外，将上行的数据发送给基站。通常，射频单元801包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频单元801还可以通过无线通信系统与网络和其他设备通信。
终端通过网络模块802为用户提供了无线的宽带互联网访问，如帮助用户收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元803可以将射频单元801或网络模块802接收的或者在存储器809中存储的音频数据转换成音频信号并且输出为声音。而且，音频输出单元803还可以提供与终端800执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出单元803包括扬声器、蜂鸣器以及受话器等。
输入单元804用于接收音频或视频信号。输入单元804可以包括图形处理器(Graphics Processing Unit，GPU)8041和麦克风8042，图形处理器8041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元806上。经图形处理器8041处理后的图像帧可以存储在存储器809(或其它存储介质)中或者经由射频单元801或网络模块802进行发送。麦克风8042可以接收声音，并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元801发送到移动通信基站的格式输出。
终端800还包括至少一种传感器805，比如光传感器、运动传感器以及其他传感器。具体地，光传感器包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板8061的亮度，接近传感器可在终端800移动到耳边时，关闭显示面板8061和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别终端姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；传感器805还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等，在此不再赘述。
显示单元806用于显示由用户输入的信息或提供给用户的信息。显示单元806可包括显示面板8061，可以采用液晶显示器(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板8061。
用户输入单元807可用于接收输入的数字或字符信息，以及产生与终端的用户设置以及功能控制有关的键信号输入。具体地，用户输入单元807包括触控面板8071以及其他输入设备8072。触控面板8071，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板8071上或在触控面板8071附近的操作)。触控面板8071可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器； 触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器810，接收处理器810发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板8071。除了触控面板8071，用户输入单元807还可以包括其他输入设备8072。具体地，其他输入设备8072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
进一步的，触控面板8071可覆盖在显示面板8061上，当触控面板8071检测到在其上或附近的触摸操作后，传送给处理器810以确定触摸事件的类型，随后处理器810根据触摸事件的类型在显示面板8061上提供相应的视觉输出。虽然在图8中，触控面板8071与显示面板8061是作为两个独立的部件来实现终端的输入和输出功能，但是在某些实施例中，可以将触控面板8071与显示面板8061集成而实现终端的输入和输出功能，具体此处不做限定。
接口单元808为外部装置与终端800连接的接口。例如，外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元808可以用于接收来自外部装置的输入(例如，数据信息、电力等等)并且将接收到的输入传输到终端800内的一个或多个元件或者可以用于在终端800和外部装置之间传输数据。
存储器809可用于存储软件程序以及各种数据。存储器809可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器809可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器810是终端的控制中心，利用各种接口和线路连接整个终端的各个部分，通过运行或执行存储在存储器809内的软件程序和/或模块，以及调用存储在存储器809内的数据，执行终端的各种功能和处理数据，从而对终端进行整体监控。处理器810可包括一个或多个处理单元；优选的，处理器 810可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器810中。
终端800还可以包括给各个部件供电的电源811(比如电池)，优选的，电源811可以通过电源管理系统与处理器810逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
另外，终端800包括一些未示出的功能模块，在此不再赘述。
优选的，本公开实施例还提供一种终端，包括处理器810，存储器809，存储在存储器809上并可在所述处理器810上运行的计算机程序，该计算机程序被处理器810执行时实现上述旁链路传输的发送端的旁链路信道状态信息CSI上报控制方法和旁链路传输的接收端的旁链路信道状态信息CSI上报方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
参见图9，图9是本公开实施例提供的另一种网络设备的结构图，如图9所示，该网络设备900包括：处理器901、收发机902、存储器903和总线接口，其中：
收发机902，用于向旁链路传输的发送端发送旁链路CSI配置信息；
其中，当向所述发送端发送所述旁链路CSI配置信息时，所述发送端通过PC5无线资源控制RRC消息向所述旁链路传输的接收端转发所述旁链路CSI配置信息，所述旁链路CSI配置信息用于供所述接收端上报的目标CSI。
应理解，本实施例中，上述处理器901和收发机902能够实现图4的方法实施例中网络设备实现的各个过程，为避免重复，这里不再赘述。
在图9中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器901代表的一个或多个处理器和存储器903代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机902可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备，用户接口904还可以是能够外接内接需要设备的接口，连 接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器901负责管理总线架构和通常的处理，存储器903可以存储处理器901在执行操作时所使用的数据。
优选的，本公开实施例还提供一种网络设备，包括处理器901，存储器903，存储在存储器903上并可在所述处理器901上运行的计算机程序，该计算机程序被处理器901执行时实现网络设备侧的旁链路信道状态信息CSI上报控制方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本公开实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现本公开实施例提供的发送端侧的旁链路信道状态信息CSI上报控制方法实施例的各个过程，或者该计算机程序被处理器执行时实现本公开实施例提供的接收端侧的旁链路信道状态信息CSI控制方法实施例的各个过程，或者该计算机程序被处理器执行时实现本公开实施例提供的网络设备侧的旁链路信道状态信息CSI上报控制方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空 调器，或者基站等)执行本公开各个实施例所述的方法。
上面结合附图对本公开的实施例进行了描述，但是本公开并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本公开的启示下，在不脱离本公开宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本公开的保护之内。

Claims (48)

  1. 一种旁链路信道状态信息CSI上报控制方法，应用于旁链路传输的发送端，包括：
    向旁链路传输的接收端发送PC5无线资源控制RRC消息，所述PC5无线资源控制RRC消息携带了旁链路CSI配置信息；
    接收所述接收端基于所述旁链路CSI配置信息上报的目标CSI。
  2. 根据权利要求1所述的方法，其中，所述向旁链路传输的接收端发送PC5无线资源控制RRC消息之前，所述方法还包括：
    根据预配置信息或协议约定确定所述旁链路CSI配置信息；
    或者，接收网络设备发送的所述旁链路CSI配置信息。
  3. 根据权利要求2所述的方法，其中，所述接收网络设备发送的所述旁链路CSI配置信息包括：
    接收网络设备通过专用无线资源控制RRC信令或者系统信息块SIB发送的所述旁链路CSI配置信息。
  4. 根据权利要求1所述的方法，其中，接收所述接收端基于所述旁链路CSI配置信息上报的目标CSI之后，所述方法还包括：
    根据网络设备发送的Uu接口传输参数配置，在目标资源上向所述网络设备转发所述目标CSI。
  5. 根据权利要求4所述的方法，其中，所述目标资源为以下任一项：
    预先周期分配的资源；
    网络设备通过第一控制信令指示的资源，其中所述第一控制信令为层1或媒体接入控制MAC信令；
    上行调度请求的资源。
  6. 根据权利要求1所述的方法，其中，接收所述接收端基于所述旁链路CSI配置信息上报的目标CSI之前，所述方法还包括：
    向所述接收端发送第二控制信令，所述第二控制信令用于指示所述接收端上报所述目标CSI。
  7. 根据权利要求6所述的方法，其中，所述第二控制信令为MAC信令。
  8. 根据权利要求7所述的方法，其中，所述第二控制信令包括以下至少一项：
    用于区分不同的半持续上报的第一指示信息；
    用于区分旁链路的第二指示信息；
    上报的测量范围；
    半持续配置标识。
  9. 根据权利要求7所述的方法，其中，所述第二控制信令包括以下至少一项：
    用于区分旁链路的第二指示信息；
    上报的测量范围；
    用于区分不同的非周期触发状态条目的第三指示信息。
  10. 根据权利要求6所述的方法，其中，所述向所述接收端发送第二控制信令包括：
    接收网络设备发送的第二控制信令；
    向所述接收端转发所述第二控制信令。
  11. 根据权利要求1所述的方法，其中，所述旁链路CSI配置信息包括周期上报资源，所述周期上报资源用于周期性CSI上报或者半持续CSI上报。
  12. 根据权利要求1所述的方法，其中，所述接收端上报的目标CSI承载于MAC CE。
  13. 根据权利要求1所述的方法，其中，所述目标CSI包括：
    用于区分旁链路的第二指示信息；
    上报的测量范围；
    上报的CSI内容。
  14. 一种旁链路信道状态信息CSI上报方法，应用于旁链路传输的接收端，包括：
    接收旁链路传输的发送端发送的PC5无线资源控制RRC消息，所述PC5无线资源控制RRC消息携带了旁链路CSI配置信息；
    根据所述旁链路CSI配置信息向所述发送端上报目标CSI。
  15. 根据权利要求14所述的方法，还包括：
    接收所述发送端发送的第二控制信令，所述第二控制信令用于指示所述接收端上报所述目标CSI。
  16. 根据权利要求15所述的方法，其中，所述根据所述旁链路CSI配置信息向所述发送端上报目标CSI包括：
    根据所述旁链路CSI配置信息确定所述上报目标CSI；
    按照所述旁链路CSI配置信息的指示或者所述第二控制信令的指示向所述发送端上报所述目标CSI。
  17. 根据权利要求15所述的方法，其中，所述第二控制信令为MAC信令。
  18. 根据权利要求15所述的方法，其中，所述第二控制信令包括以下至少一项：
    用于区分不同的半持续上报的第一指示信息；
    用于区分旁链路的第二指示信息；
    上报的测量范围；
    半持续配置标识。
  19. 根据权利要求15所述的方法，其中，所述第二控制信令包括以下至少一项：
    用于区分旁链路的第二指示信息；
    上报的测量范围；
    用于区分不同的非周期触发状态条目的第三指示信息。
  20. 根据权利要求14所述的方法，其中，所述旁链路CSI配置信息包括周期上报资源，所述周期上报资源用于配置周期性CSI上报或者半持续CSI上报。
  21. 根据权利要求14所述的方法，其中，所述目标CSI承载于MAC CE。
  22. 根据权利要求14所述的方法，其中，所述目标CSI包括：
    用于区分旁链路的第二指示信息；
    上报的测量范围；
    上报的CSI内容。
  23. 一种旁链路信道状态信息CSI上报控制方法，应用于网络设备，包括：
    向旁链路传输的发送端发送旁链路CSI配置信息；
    其中，当向所述发送端发送所述旁链路CSI配置信息时，所述发送端通过PC5无线资源控制RRC消息向所述旁链路传输的接收端转发所述旁链路CSI配置信息，所述旁链路CSI配置信息用于供所述接收端上报的目标CSI。
  24. 根据权利要求23所述的方法，其中，所述旁链路CSI配置信息承载于专用无线资源控制RRC信令或者系统信息块SIB。
  25. 根据权利要求23所述的方法，还包括：
    向所述发送端发送Uu接口传输参数配置，所述Uu接口传输参数配置用于所述发送端向所述网络设备上报所述目标CSI所用的目标参数。
  26. 根据权利要求25所述的方法，其中，所述向所述发送端发送Uu接口传输参数配置之后，所述方法还包括：
    在目标资源上接收所述发送端根据Uu接口传输参数配置转发的所述目标CSI。
  27. 根据权利要求26所述的方法，其中，所述目标资源为以下任一项：
    预先周期分配的资源；
    网络设备通过层1或媒体接入控制发送第一控制信令指示的资源；
    上行调度请求的资源。
  28. 根据权利要求23所述的方法，还包括：
    向所述发送端发送第二控制信令，所述第二控制信令用于指示所述接收端上报所述目标CSI。
  29. 根据权利要求28所述的方法，其中，所述第二控制信令为MAC信令。
  30. 根据权利要求28所述的方法，其中，所述第二控制信令包括以下至少一项：
    用于区分不同的半持续上报的第一指示信息；
    用于区分旁链路的第二指示信息；
    上报的测量范围；
    半持续配置标识。
  31. 根据权利要求28所述的方法，其中，所述第二控制信令包括以下至少 一项：
    用于区分旁链路的第二指示信息；
    上报的测量范围；
    用于区分不同的非周期触发状态条目的第三指示信息。
  32. 根据权利要求23所述的方法，其中，所述旁链路CSI配置信息包括周期上报资源，所述周期上报资源用于周期性CSI上报或者半持续CSI上报。
  33. 一种终端，所述终端为旁链路传输的发送端，包括：
    第一发送模块，用于向旁链路传输的接收端发送PC5无线资源控制RRC消息，所述PC5无线资源控制RRC消息携带了旁链路信道状态信息CSI配置信息；
    第一接收模块，用于接收所述接收端基于所述旁链路CSI配置信息上报的目标CSI。
  34. 根据权利要求33所述的终端，还包括：
    第一确定模块，用于根据预配置信息或协议约定确定所述旁链路CSI配置信息；或者，
    所述第一接收模块还用于接收网络设备发送的所述旁链路CSI配置信息。
  35. 根据权利要求34所述的终端，其中，
    所述第一接收模块还用于：接收网络设备通过专用无线资源控制RRC信令或者系统信息块SIB发送的所述旁链路CSI配置信息。
  36. 根据权利要求33所述的终端，其中，
    所述第一发送模块还用于：根据网络设备发送的Uu接口传输参数配置，在目标资源上向所述网络设备转发所述目标CSI。
  37. 根据权利要求33所述的终端，其中，
    所述第一发送模块还用于：向所述接收端发送第二控制信令，所述第二控制信令用于指示所述接收端上报所述目标CSI。
  38. 根据权利要求37所述的终端，其中，所述向所述接收端发送第二控制信令包括：
    接收网络设备发送的第二控制信令；
    向所述接收端转发所述第二控制信令。
  39. 一种终端，所述终端为旁链路传输的接收端，包括：
    第二接收模块，用于接收旁链路传输的发送端发送的PC5无线资源控制RRC消息，所述PC5无线资源控制RRC消息携带了旁链路信道状态信息CSI配置信息；
    第二发送模块，用于根据所述旁链路CSI配置信息向所述发送端上报目标CSI。
  40. 根据权利要求39所述的终端，还包括：
    第二确定模块，用于接收所述发送端发送的第二控制信令，所述第二控制信令用于指示所述接收端上报所述目标CSI。
  41. 根据权利要求40所述的终端，其中，
    第二确定模块还用于根据所述旁链路CSI配置信息确定所述上报目标CSI；
    所述第二发送模块还用于：按照所述旁链路CSI配置信息的指示或者所述第二控制信令的指示向所述发送端上报所述目标CSI。
  42. 一种网络设备，包括：
    第三发送模块，用于向旁链路传输的发送端发送旁链路信道状态信息CSI配置信息；
    其中，当向所述发送端发送所述旁链路CSI配置信息时，所述发送端通过PC5无线资源控制RRC消息向所述旁链路传输的接收端转发所述旁链路CSI配置信息，所述旁链路CSI配置信息用于供所述接收端上报的目标CSI。
  43. 根据权利要求42所述的网络设备，其中，所述第三发送模块还用于：向所述发送端发送Uu接口传输参数配置，所述Uu接口传输参数配置用于所述发送端向所述网络设备上报所述目标CSI所用的目标参数。
  44. 根据权利要求43所述的网络设备，其中，所述第三发送模块还用于：所述向所述发送端发送Uu接口传输参数配置之后，在目标资源上接收所述发送端根据Uu接口传输参数配置转发的所述目标CSI。
  45. 根据权利要求42所述的网络设备，其中，所述第三发送模块还用于：向所述发送端发送第二控制信令，所述第二控制信令用于指示所述接收端上报所述目标CSI。
  46. 一种终端，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如权利要求1至13中任一项所述的旁链路信道状态信息CSI上报控制方法中的步骤，或者所述程序被所述处理器执行时实现如权利要求14至22中任一项所述的旁链路信道状态信息CSI上报方法中的步骤。
  47. 一种网络设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如权利要求23至32中任一项所述的旁链路信道状态信息CSI上报控制方法中的步骤。
  48. 一种计算机可读存储介质，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至13以及23至32中任一项所述的旁链路信道状态信息CSI上报控制方法的步骤，或者所述计算机程序被处理器执行时实现如权利要求14至22中任一项所述的旁链路信道状态信息CSI上报方法的步骤。
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