WO2023011452A1 - 旁链路反馈信息的信道接入方法、处理方法及相关设备 - Google Patents

旁链路反馈信息的信道接入方法、处理方法及相关设备 Download PDF

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Publication number
WO2023011452A1
WO2023011452A1 PCT/CN2022/109656 CN2022109656W WO2023011452A1 WO 2023011452 A1 WO2023011452 A1 WO 2023011452A1 CN 2022109656 W CN2022109656 W CN 2022109656W WO 2023011452 A1 WO2023011452 A1 WO 2023011452A1
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Prior art keywords
feedback information
access
access mode
lbt
target
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PCT/CN2022/109656
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English (en)
French (fr)
Inventor
彭淑燕
杨聿铭
纪子超
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维沃移动通信有限公司
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Publication of WO2023011452A1 publication Critical patent/WO2023011452A1/zh
Priority to US18/430,450 priority Critical patent/US20240172277A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0808Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055Physical resource allocation for ACK/NACK
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14Spectrum sharing arrangements between different networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/18Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present application belongs to the technical field of communications, and in particular relates to a channel access method, processing method and related equipment for sidelink feedback information.
  • unlicensed band unlicensed frequency band
  • licensed frequency band licensed band
  • Embodiments of the present application provide a channel access method for sidelink feedback information, a processing method, and related equipment, which can solve the problem of realizing channel access for sidelink feedback information in an unlicensed frequency band.
  • a channel access method for sidelink feedback information including:
  • the first terminal determines the target access mode
  • the first terminal executes a channel access process of the first feedback information according to the target access mode.
  • a channel access processing method for sidelink feedback information including:
  • the communication device sends target indication information to the first terminal, where the target indication information is used for the first terminal to determine a target access mode for executing the channel access procedure of the first feedback information;
  • the communication device is a scheduling terminal, a receiving end of the first feedback information, or a network side device.
  • a channel access device for sidelink feedback information including:
  • a determining module configured to determine a target access mode
  • An executing module configured to execute the channel access procedure of the first feedback information according to the target access mode.
  • a channel access processing device for sidelink feedback information including:
  • a sending module configured to send target indication information to the first terminal, where the target indication information is used for the first terminal to determine a target access mode for executing the channel access procedure of the first feedback information.
  • a terminal includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor.
  • the program or instruction is executed by the processor The steps of the method described in the first aspect are realized.
  • a terminal including a processor and a communication interface, wherein the processor is configured to determine a target access mode; and execute a channel access process of the first feedback information according to the target access mode.
  • the communication interface is configured to send target indication information to the first terminal, where the target indication information is used for the first terminal to determine a target access manner for executing the channel access procedure of the first feedback information.
  • a network-side device includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor, and the program or instruction is executed by the When executed by the processor, the steps of the method described in the first aspect are realized.
  • a network side device including a processor and a communication interface, wherein the communication interface is used to send target indication information to a first terminal, and the target indication information is used for the first terminal to determine A target access mode of the channel access procedure for executing the first feedback information.
  • a readable storage medium is provided, and programs or instructions are stored on the readable storage medium, and when the programs or instructions are executed by a processor, the steps of the method described in the first aspect are realized, or the steps of the method described in the first aspect are realized, or The steps of the method described in the second aspect.
  • the embodiment of the present application provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions, so as to implement the first aspect The steps of the method, or the steps of the method for realizing the second aspect.
  • a computer program/program product is provided, the computer program/program product is stored in a non-transitory storage medium, and the computer program/program product is executed by at least one processor to implement the first The method described in the first aspect, or implement the method described in the second aspect.
  • a communication device configured to perform the steps of the method described in the first aspect, or configured to perform the steps of the method described in the second aspect.
  • the target access mode is determined by the first terminal; and the channel access process of the first feedback information is executed according to the target access mode, so that the channel access of the sidelink feedback information can be realized on the shared frequency band input to send feedback. Therefore, the embodiment of the present application can improve the utilization rate of system resources and realize the balance of reliability.
  • FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present application
  • FIG. 2 is a flowchart of a channel access method for sidelink feedback information provided by an embodiment of the present application
  • FIG. 3 is a flowchart of a channel access processing method for sidelink feedback information provided by an embodiment of the present application
  • FIG. 4 is a structural diagram of a channel access device for sidelink feedback information provided by an embodiment of the present application.
  • FIG. 5 is a structural diagram of a channel access processing device for sidelink feedback information provided by an embodiment of the present application
  • FIG. 6 is a structural diagram of a terminal provided in an embodiment of the present application.
  • FIG. 7 is a structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 8 is a structural diagram of a network side device provided by an embodiment of the present application.
  • first, second and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and “second” distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects.
  • “and/or” in the description and claims means at least one of the connected objects, and the character “/” generally means that the related objects are an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technologies can be used for the above-mentioned systems and radio technologies as well as other systems and radio technologies.
  • NR New Radio
  • the following description describes the New Radio (NR) system for illustrative purposes, and uses NR terminology in most of the following descriptions. These technologies can also be applied to applications other than NR system applications, such as the 6th Generation (6 th Generation , 6G) communication system.
  • 6th Generation 6th Generation
  • Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12 .
  • the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer, TPC), a laptop computer (Laptop Computer, LC) or a notebook Computer, personal digital assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) , WD) or vehicle user equipment (Vehicle User Equipment, VUE), pedestrian terminal (Pedestrian User Equipment, PUE) and other terminal-side equipment, wearable devices include: smart watches, bracelets, earphones, glasses, etc.
  • the network side device 12 may be a base station or a core network device, where a base station may be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, Wireless Local Area Networks , WLAN) access point, wireless fidelity (Wireless Fidelity, WiFi) node, transmitting and receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station It is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type
  • the shared frequency band can be called an unlicensed frequency band.
  • the unlicensed frequency band can work in the 5GHz, 37GHz and 60GHz frequency bands. Since the unlicensed frequency band is shared by a variety of radio access technologies (Radio Access Technology, RATs), such as WiFi, radar, LTE-authorized spectrum assisted access (Licensed-Assisted Access, LAA), etc., in some countries or regions, The use of unlicensed frequency bands must comply with regulations to ensure that all devices can use the resources fairly. For example, rules such as Listen Before Talk (LBT) and Maximum Channel Occupancy Time (MCOT).
  • LBT Listen Before Talk
  • MCOT Maximum Channel Occupancy Time
  • the transmission node When the transmission node needs to send information, it needs to do LBT first, and perform power detection (Energy Detection, ED) on the surrounding nodes. When the detected power is lower than a threshold, the channel is considered to be idle (idle), and the transmission node can to send. Otherwise, it is considered that the channel is busy, and the transmission node cannot send.
  • the transmission node may be a base station, a UE, a WiFi access point (Access Point, AP) and the like. After the transmission node starts transmission, the channel occupancy time (Channel Occupancy Time, COT) cannot exceed MCOT.
  • Category 1 LBT means that the sending node does not do LBT, that is, no LBT or immediate transmission.
  • Category 2 LBT is one-shot LBT, that is, the node performs LBT once before transmission, and the transmission is performed when the channel is empty, and no transmission is performed when the channel is busy.
  • Category 4 LBT is a channel monitoring mechanism based on back-off. When the transmission node detects that the channel is busy, it backs off and continues to listen until it detects that the channel is empty.
  • Category 2 LBT is applied to physical downlink shared channel (PDSCH) without demodulation reference signal (Demodulation Reference Signal, DRS), Category 4 LBT is applied to PDSCH, physical Downlink control channel (Physical downlink control channel, PDCCH) and enhanced PDCCH (ePDCCH).
  • PDSCH physical downlink shared channel
  • PDCCH Physical downlink control channel
  • ePDCCH enhanced PDCCH
  • Category4 LBT corresponds to type 1 uplink (Uplink, UL) access procedure (type1 UL channel access procedure)
  • Category2 LBT corresponds to type 2 uplink access procedure (type2 UL channel access procedure).
  • Cat 2 LBT exists 16us Cat 2 LBT, and 25us Cat 2 LBT.
  • LBE Load based equipment
  • the transmission node can start LBT at any time until it detects that the channel is empty before transmitting. For the transmission node, there is no fixed listening time, and there is no need to skip when the channel is detected to be busy. You can continue listening by backoff several Extended Clear Channel Assessment (eCCA), Until the eCCA counter (counter) is zero.
  • eCCA Extended Clear Channel Assessment
  • Channel access priority class (Channel access priority class, CAPC).
  • the initiated MCOT is different.
  • the higher the channel access priority the shorter the initiated MCOT.
  • NR SL includes the following channels:
  • PSCCH Physical Sidelink Control Channel
  • PSSCH Physical Sidelink Shared Channel
  • PSBCH Physical Sidelink Broadcast Channel
  • PSFCH Physical Sidelink Feedback Channel
  • the PSSCH performs resource allocation in units of sub-channels, and adopts a continuous resource allocation manner in the frequency domain.
  • the time domain resource of PSCCH is the number of symbols configured by the high layer
  • the frequency domain size is a parameter configured by the high layer
  • the frequency domain resource limit of the PSCCH is less than or equal to the size of a subchannel
  • the PSCCH is located within the range of the lowest subchannel of the PSSCH.
  • V2X Vehicle-to-Everything
  • mode1 which schedules resources for the base station
  • mode2 the UE decides what resources to use for transmission.
  • the resource information may come from the broadcast message of the base station or the pre-configured information. If the UE works within the range of the base station and has a radio resource control (Radio Resource Control, RRC) connection with the base station, it can be mode1 and/or mode2. If the UE works within the range of the base station but has no RRC connection with the base station, it can only work in mode2 . If the UE is outside the range of the base station, it can only work in mode2 and perform V2X transmission according to pre-configured information.
  • RRC Radio Resource Control
  • the sending terminal (TX UE) first determines the resource selection window.
  • the lower boundary of the resource selection window is T1 time after the resource selection trigger, and the upper boundary of the resource selection is T2 time after the trigger, where T2 It is the value selected by the UE implementation in the packet delay budget (Packet Delay Budget, PDB) of its transport block (Transport Block, TB) transmission, and T2 is not earlier than T1.
  • PDB Packet Delay Budget
  • the UE Before resource selection, the UE needs to determine the candidate resource set (candidate resource set) for resource selection, according to the reference signal received power (Reference Signal Received Power, RSRP) measured on the resource within the resource selection window and the corresponding RSRP threshold ( threshold) for comparison, if the RSRP is lower than the RSRP threshold, then the resource can be included in the candidate resource set.
  • RSRP Reference Signal Received Power
  • the UE After the resource set is determined, the UE randomly selects a transmission resource from the candidate resource set. In addition, the UE may reserve transmission resources for the next transmission in this transmission.
  • NR V2X supports a chained resource reservation method, that is, a sidelink control information (Sidelink Control Information, SCI) can reserve the current resource, and can reserve up to two additional resources. In the next resource, Two more reserved resources may be indicated. Within the selection window, resources can be continuously reserved in the form of dynamic reservation.
  • SCI Sidelink Control Information
  • NRU "detection" is to judge whether the detected resource is busy or idle, and it will consider the occupancy of channel bandwidth and the result of energy detection. According to the judgment result, it is determined whether the counter is decremented, or whether the next candidate resource sends information.
  • "detection" is to judge the resource occupancy/interference situation on the resource according to the RSRP on the detected resource. Then it is determined whether the candidate resources in the corresponding resource selection window may be subject to relatively serious interference, and it is determined whether the corresponding resources need to be excluded.
  • NRU and SL adopt the detection concept, however, in the two systems, the detection standards are different.
  • detection when it comes to detection, it means NRU detection and/or SL detection, or a new detection method judgment, which is not limited here.
  • FIG. 2 is a flow chart of a channel access method for sidelink feedback information provided by an embodiment of the present application. As shown in FIG. 2, it includes the following steps:
  • Step 201 the first terminal determines the target access mode
  • the above-mentioned target access mode may be stipulated in a protocol, may also be instructed or configured by the network side device or the second terminal, or may be determined by the first terminal.
  • the default access mode may be directly stipulated, and the method for determining the target access mode may also be stipulated.
  • it may directly indicate the information of the target access mode, or indicate the method of determining the target access mode, for example, indicate that the target access mode is associated with a certain parameter.
  • the above-mentioned first terminal can be understood as a PSSCH receiving terminal
  • the above-mentioned second terminal can be understood as a PSSCH sending terminal or a scheduling terminal
  • the above-mentioned first feedback information can be understood as feedback information for the PSSCH transmission
  • the above-mentioned target access method Can become the target channel access method.
  • the channel access method can be selected according to the protocol agreement, pre-configuration, configuration or indication, wherein the selected target access method can include the Cat 1 LBT-based method described in the above embodiment , Cat 2 LBT or Cat 4 LBT channel access mode.
  • Step 202 the first terminal executes a channel access procedure of the first feedback information according to the target access mode.
  • the first terminal may execute the channel access process of the first feedback information on the unlicensed frequency band according to the target access mode.
  • the channel access procedure includes operations such as resource detection, resource selection, and sending of first feedback information.
  • the above target access method is not limited to be used only for channel access on an unlicensed frequency band.
  • the above-mentioned first feedback information may include at least one of sidelink information carried on the PSFCH channel and other feedback information carried on the PSSCH.
  • the sidelink information carried on the PSFCH channel includes HARQ information
  • other feedback information carried on the PSSCH may include channel state information (Channel State Information, CSI) report and receiver auxiliary information, etc.
  • CSI Channel State Information
  • the CSI report may be carried on the PSFCH; the auxiliary information of the receiving end may also be carried on the PSFCH. All are considered applicable in the present invention.
  • the target access mode is determined by the first terminal; and the channel access process of the first feedback information is executed according to the target access mode, so that the channel access of the sidelink feedback information can be realized on the shared frequency band input to send feedback. Therefore, the embodiment of the present application can improve the utilization rate of system resources and realize the balance of reliability.
  • the target access mode is determined based on at least one of the following;
  • N is a positive integer
  • the N access methods are determined by at least one of the following: protocol agreement, network-side device configuration, network-side device pre-configuration, network-side device indication, terminal configuration, and terminal indication;
  • the second association relationship between the access mode and the second object, the second object includes at least one of the feedback information, the content carried by the multiplexed physical sidelink shared channel PSSCH, and the sub-carrier space (Sub-Carrier Space, SCS) item;
  • the third association relationship between the access method and the third object, the third object includes the quality of service of the feedback information, the priority of the feedback information, the service quality of the PSSCH corresponding to the feedback information, the priority of the PSSCH corresponding to the feedback information, the feedback information At least one of the number of candidate resources for information, the number of remaining candidate resources for feedback information, and the resource numbers of candidate resources for feedback information;
  • a channel access mode of the second feedback information is provided.
  • the foregoing access manner may be referred to as a channel access manner.
  • the foregoing terminal configuration may be understood as a second terminal configuration, and the foregoing terminal indication may be understood as a second terminal indication.
  • the target access method when the target access method is determined based on N access methods, and the value of N is 1, it can be understood that protocol agreement, network-side device configuration, network-side device pre-configuration, Network-side device indication, terminal configuration, and terminal indication that the target access mode of the first terminal is a channel access mode based on Cat 1 LBT, Cat 2 LBT or Cat 4 LBT.
  • the N access modes satisfy at least one of the following:
  • the N access methods include a default first access method
  • the N access methods include a second access method indicated by the network side device through downlink control information
  • the N access modes include a third access mode indicated by the second terminal.
  • the default first access mode can be understood as the default first access mode of the protocol, specifically, the first access mode can be understood as Cat 1 LBT or Cat 2 LBT.
  • the first terminal may perform a channel access process of the first feedback information based on the default first access mode, so that feedback can be performed quickly , to reduce detection overhead.
  • the COT of the second terminal may be indicated by the second terminal or the network side device, which is not further limited here.
  • the scheduling terminal or the sending terminal of the PSSCH sends the SCI (the first-level SCI and/or the second-level SCI) to indicate the remaining COT of the scheduling terminal or the sending terminal of the PSSCH.
  • the network side device indicates the remaining COT of the scheduling terminal or the PSSCH sending terminal through downlink control information (Downlink Control Information, DCI).
  • DCI Downlink Control Information
  • the network side device may explicitly or implicitly indicate the channel access mode of the first terminal, that is, the second access mode, through the DCI.
  • the scheduling terminal or the sending terminal of the PSSCH may explicitly or implicitly indicate the channel access mode of the first terminal through the SCI, that is, the third access mode.
  • Cat 1 LBT can be used to send as soon as possible, but the channel quality is not necessarily good, and the transmission failure will increase system interference; Cat 2 LBT can be sent after measurement to ensure channel quality, but the channel may be preempted.
  • the access mode is dynamically indicated, which has high flexibility.
  • the first terminal may determine a target access mode according to a certain rule to perform channel access. For example, the first terminal performs channel access in the channel access mode indicated by the latest DCI or SCI, or the first terminal uses the channel access mode with the longest indicated LBT time (such as Cat 4) or the shortest (such as Cat 1) Perform channel access.
  • the target access mode is any of the following Access method:
  • the N1 second access methods or the N2 third access methods, the last indicated access method
  • N1 and N2 are natural numbers, and the sum of N1 and N2 is N.
  • the latest indication is the latest indication that satisfies a time interval. In other words, it can be understood as the last valid instruction.
  • the target access mode when the target access mode is determined based on the first association relationship, the target access mode satisfies at least one of the following:
  • the target access mode is the access mode of the first type of LBT
  • the target access mode is the access mode of the second type LBT.
  • the above-mentioned first format can be understood as PSFCH format 1, and the above-mentioned second format can be understood as PSFCH format 2.
  • the access method of the first type of LBT above can be understood as a channel access method based on Cat 1 LBT, or called Cat 1 LBT.
  • the access method of the above-mentioned second type of LBT can be understood as a channel access method based on Cat 2 LBT, or called Cat 2 LBT.
  • PSFCH format 2 is the PSFCH format of M4 symbols. M4 ⁇ M3.
  • the lengths of M1 and M2 including or not including cyclic prefix extension (Cyclic Prefix Extension, CPE).
  • the target access mode is associated with the first object of the feedback information, and the target access mode satisfies at least one of the following:
  • the target access mode is the access mode of the first type LBT or the second type LBT;
  • the target access mode is associated with the data transmission type or data transmission target identifier in the PSSCH;
  • the target access mode is the access mode of the first type LBT or the second type LBT;
  • the target access mode is an access mode of the first type of LBT or an access mode of the second type of LBT.
  • the target access mode is associated with a data transmission type or a target identifier in the PSSCH.
  • the target access mode is the first type of LBT.
  • the PSFCH occupies four Orthogonal frequency division multiplex (OFDM) symbols, meeting the maximum requirement of 584us for Cat 1 LBT.
  • OFDM Orthogonal frequency division multiplex
  • the target access mode satisfies at least one of the following:
  • the target access method is an access method of the first type of LBT or an access method of the second type of LBT;
  • the target access method is an access method of the first type of LBT or an access method of the second type of LBT;
  • the target access mode is an access mode of the second type LBT or an access mode of the third type LBT.
  • the above-mentioned access method of the third type of LBT can be understood as a channel access method based on Cat 4 LBT, which can also be called Cat 4 LBT.
  • the target access method satisfies at least one of the following:
  • Detecting the A-th candidate resource adopting the access method of the second type LBT with the first detection duration, and A is the first preset value
  • n is a positive integer
  • n is a positive integer.
  • the access methods of the second type of LBT include the following two types:
  • the access method of the second type of LBT described can be understood as: the access method of the second type of LBT with the first detection duration or An access mode of the second type of LBT with the second detection duration.
  • the first detection duration may be 16us
  • the first detection duration may be 25us. That is, in the embodiment of the present application, the access mode of the second type LBT of the first detection duration can be expressed as Cat 2 (16us) LBT, and the access mode of the second type of LBT of the second detection duration can be expressed as Cat 2 (25us) ) LBT.
  • Cat 2 LBT or Cat 4 LBT can also be performed on the previous resources first, and if the previous resources fail, Cat 1 LBT is used on the last resource.
  • the target access mode is at least one of the following:
  • the fastest or slowest channel access method among the M access methods is the fastest or slowest channel access method among the M access methods.
  • the fastest or slowest channel access method among the M1 access methods associated with the second feedback information is the fastest or slowest channel access method among the M1 access methods associated with the second feedback information
  • a channel access method for the mth second feedback information where m is a preset value
  • the M access modes include M2 access modes associated with the M1 access modes and the first feedback information, M1 is a positive integer less than or equal to M, and the sum of M1 and M2 equal to M.
  • the target access method is the fastest channel access method among the M access methods, for example, if other feedback information or the first feedback information is configured with Cat 1 LBT, then Cat 1 LBT access; if Cat 1 LBT is not configured and Cat 2 LBT is configured, then Cat 2 LBT is used for access.
  • the second feedback information satisfies at least one of the following:
  • the start time of the second feedback information is the same as the start time of the first feedback information
  • the second feedback information is feedback information other than the first feedback information in the feedback information to be sent.
  • the method also includes:
  • the first terminal determines at least one of a format of the first feedback information, a resource mapping manner, and a resource selection manner according to the first mapping relationship between the access manner and the feedback information.
  • the feedback information format is associated with the channel access method or SCS of the feedback information
  • if it is a Cat 2 LBT or Cat 4 LBT access method 4 OS transmission can be considered. If it is a Cat 1 method, PSFCH with longer symbols can be considered to ensure reliability.
  • the first mapping relationship satisfies at least one of the following:
  • the format of the first feedback information is the first format
  • the resource mapping mode of the first feedback information is the first resource mapping mode
  • the resource selection mode of the first feedback information is the first resource selection mode
  • the format of the first feedback information is the second format
  • the resource mapping mode of the first feedback information is the second resource mapping mode
  • the resource selection mode of the first feedback information is the second resource selection mode.
  • the above-mentioned first resource mapping method may be understood as time-frequency resource mapping method 1
  • the above-mentioned second resource mapping method may be understood as time-frequency resource mapping method 2.
  • the channel access method of Cat 2/Cat 4 LBT it corresponds to PSFCH format 1/time-frequency resource mapping method 1
  • the channel access method of Cat 1 LBT corresponds to PSFCH format 2/time-frequency resource mapping way 2.
  • the channel access process includes: the first terminal according to the configuration or instruction The CPE information is transmitted.
  • the indication information of the CPE information is carried in target indication signaling, and the target indication signaling is downlink control information DCI signaling or sidelink control information SCI signaling.
  • the above indication information may explicitly or implicitly indicate the CPE information.
  • the CPE information indicates that the transmission position of the CPE is before or after the start time of the first feedback information.
  • the CPE information indicating that the transmission position of the CPE is located before the first feedback information may be understood as that the CPE information indicates that the transmission position of the CPE is located before the transmission start time of the first feedback information. In other words, the The CPE information indicates that the transmission position of the CPE is before the scheduled or indicated starting position of the PSFCH/PSSCH.
  • the CPE information indicating that the transmission position of the CPE is located after the first feedback information may be understood as the CPE information indicating that the transmission position of the CPE is located after the transmission start moment of the first feedback information. In other words, the The CPE information indicates that the transmission position of the CPE is located after the scheduled or indicated PSFCH/PSSCH start position.
  • the SCI may carry 1-bit indication information to indicate that the transmission position of the CPE is before or after the start time of the first feedback information.
  • the parameters of the channel access procedure include a first channel access priority CAPC, and the first CAPC satisfies at least one of the following:
  • the first CAPC has a mapping relationship with the quality of service of sidelink information
  • the first CAPC is determined according to the fourth object of the PSSCH corresponding to the first feedback information
  • the first CAPC is determined according to the priority indicated in the PSCCH corresponding to the first feedback information
  • the first CAPC is the same as the second CAPC of the PSSCH corresponding to the first feedback information
  • the first CAPC is determined according to the lowest CAPC value of the data to be transmitted
  • the first CAPC is determined according to a preset rule, and L is an integer greater than 1;
  • the first CAPC is associated with the number of candidate resources or the number of remaining candidate resources;
  • the first CAPC is the CAPC of the PSFCH stipulated in the protocol, pre-configured or configured;
  • the fourth object includes priority and logical channel priority.
  • the first terminal may, according to the priority of the data to be transmitted, and the CAPC and the SL information quality of service (Quality of Service, QoS) mapping relationship, determine CAPC, and perform channel access.
  • the data to be transmitted may include at least one of PSFCH, CSI report, SL Scheduling Request (Scheduling Request, SR), PSSCH and PSCCH.
  • the first CAPC When the first feedback information is only carried on the PSFCH, and the first CAPC is determined according to the fourth object of the PSSCH corresponding to the first feedback information, the first CAPC according to the priority of the PSSCH corresponding to the PSFCH or Logical channel priority determination.
  • the first CAPC When the first feedback information is only carried on the PSFCH, and the first CAPC is determined according to the priority indicated in the PSCCH corresponding to the first feedback information, the first CAPC carries the SCI according to the PSCCH corresponding to the PSFCH The priority of the indication is determined.
  • the CAPC when there is no priority indication in the PSFCH, the CAPC is linked to the CAPC of the PSSCH.
  • the lower the value of the CAPC the higher the corresponding priority.
  • the higher the value of the CAPC the higher the corresponding priority.
  • the fact that the first feedback information is only carried on the PSFCH can be understood as PSFCH only transmission. If there are multiple PSFCH transmissions and they are PSFCH only transmissions, then the first CAPC is determined according to the above preset rules.
  • the preset rules include any of the following:
  • the first CAPC is the lowest CAPC among the L CAPCs.
  • the first CAPC is determined according to the priority or CAPC corresponding to the first PSSCH associated with the second terminal;
  • the first CAPC is determined according to the priority or CAPC corresponding to the second PSSCH associated with the second terminal;
  • the first PSSCH is associated with the PSFCH
  • the second PSSCH is the PSSCH in the first COT of the second terminal
  • the time domain position of the PSFCH is located in the first COT.
  • the first CAPC when the first CAPC is associated with the number of candidate resources or the remaining number of candidate resources, the first CAPC satisfies any of the following:
  • the CAPC value of the first CAPC is a first threshold; when the number of candidate resources is smaller than a third preset value, the second The CAPC value of a CAPC is a second threshold;
  • the CAPC value of the first CAPC is a first threshold; when the number of remaining candidate resources is less than a fourth preset value, the The CAPC value of the first CAPC is a second threshold.
  • the adjustment of the CAPC is performed on the basis of the previously received access parameters corresponding to the TB.
  • Embodiment 1 The sending terminal (Transmit X UE, TX UE) indicates (initiated) the COT, and sends the PSCCH/PSSCH to the receiving terminal (Receive X UE, RX UE) in the COT.
  • the SCI carries the PSFCH channel access indication, which is Cat 1 LBT, Cat 2 (16us) LBT, Cat 2 (25us) LBT or Cat 4 LBT access.
  • the RX UE receives the PSCCH/PSSCH, and determines the position of the candidate PSFCH according to the mapping rule between the PSSCH/PSCCH and the PSFCH.
  • the RX UE performs LBT before the PSFCH candidate resource (according to the PSFCH starting position - the length of the CPE - 25us to determine the starting position of the detection, this is RX UE implementation).
  • PSFCH resource If successful, on the corresponding PSFCH resource, use the predefined PSFCH format (format) or PSFCH structure (structure) for transmission;
  • TX UE initiated COT sends PSCCH/PSSCH to RX UE in COT.
  • the SCI carries the PSFCH channel access indication, which is Cat 1 LBT, Cat 2 (16us) LBT, Cat 2 (25us) LBT or Cat 4 LBT access; it carries the CPE indication information.
  • the RX UE receives the PSCCH/PSSCH, and determines the position of the candidate PSFCH according to the mapping rule between the PSSCH/PSCCH and the PSFCH.
  • the RX UE performs LBT before the first PSFCH candidate resource (according to the location of the candidate PSFCH resource, CPE indicates, and 25us is determined to be the location).
  • the CAPC parameter is determined according to the priority of the PSSCH corresponding to the PSFCH.
  • pre-defined RX UE uses Cat 2 LBT for channel access in the first N-1 PSFCH candidate resources, and uses Cat 1 LBT for channel access in the last PSFCH candidate resource.
  • the SCI carries the PSFCH channel access indication, which is Cat 1 LBT, Cat 2 (16us) LBT, Cat 2 (25us) LBT or Cat 4 LBT access; it carries the CPE indication information.
  • the RX UE receives the PSCCH/PSSCH, and determines the position of the candidate PSFCH according to the mapping rule between the PSSCH/PSCCH and the PSFCH.
  • the number of PSFCH candidate resources is N.
  • N_thresh N_thresh
  • the TX UE indicates that the PSFCH is a Cat 2 (25us/16us) LBT channel access method, and the RX UE performs LBT before the PSFCH candidate resource (according to the candidate PSFCH resource location, CPE indication, 25us/16us to determine the location ).
  • the CAPC parameter is determined according to the priority of the PSSCH corresponding to the PSFCH.
  • Embodiment 3 TX UE initiated COT, and sends PSCCH/PSSCH to RX UE in COT.
  • the SCI carries the PSFCH channel access indication, which is Cat 1 LBT, Cat 2 (16us) LBT, Cat 2 (25us) LBT or Cat 4 LBT access.
  • the SCI carries a PSFCH candidate resource indication.
  • the RX UE receives the PSCCH/PSSCH, and determines the position of the PSFCH candidate resource according to the indication in the SCI.
  • the RX UE performs LBT before the PSFCH candidate resources.
  • FIG. 3 is a flow chart of a channel access processing method for sidelink feedback information provided by an embodiment of the present application. As shown in FIG. 3, it includes the following steps:
  • Step 301 the communication device sends target indication information to the first terminal, and the target indication information is used for the first terminal to determine a target access mode for executing the channel access procedure of the first feedback information;
  • the communication device is a scheduling terminal, a receiving end of the first feedback information, or a network side device.
  • the target indication information is used to indicate at least one of the following:
  • the third association relationship between the access method and the third object, the third object includes the quality of service of the feedback information, the priority of the feedback information, the service quality of the PSSCH corresponding to the feedback information, the priority of the PSSCH corresponding to the feedback information, the feedback information At least one of the number of candidate resources for information, the number of remaining candidate resources for feedback information, and the resource numbers of candidate resources for feedback information;
  • a channel access mode of the second feedback information is provided.
  • the target access mode when the target access mode is determined based on the first association relationship, the target access mode satisfies at least one of the following:
  • the target access mode is the access mode of the first type of LBT
  • the target access mode is the access mode of the second type LBT.
  • the target access mode is associated with a data transmission type or a target identifier in the PSSCH.
  • the target access mode is associated with a data transmission type or a target identifier in the PSSCH.
  • the target access mode satisfies at least one of the following:
  • the target access method is an access method of the first type of LBT or an access method of the second type of LBT;
  • the target access method is an access method of the first type of LBT or an access method of the second type of LBT;
  • the target access mode is an access mode of the second type LBT or an access mode of the third type LBT.
  • the target access mode is associated with the first object of the feedback information, and the target access mode satisfies at least one of the following:
  • the target access mode is the access mode of the first type LBT or the second type LBT;
  • the target access mode is associated with the data transmission type or data transmission target identifier in the PSSCH;
  • the target access mode is the access mode of the first type LBT or the second type LBT;
  • the target access mode is an access mode of the first type of LBT or an access mode of the second type of LBT.
  • the target access mode is at least one of the following:
  • the fastest or slowest channel access method among the M access methods is the fastest or slowest channel access method among the M access methods.
  • the fastest or slowest channel access method among the M1 access methods associated with the second feedback information is the fastest or slowest channel access method among the M1 access methods associated with the second feedback information
  • a channel access method for the mth second feedback information where m is a preset value
  • the M access modes include M2 access modes associated with the M1 access modes and the first feedback information, M1 is a positive integer less than or equal to M, and the sum of M1 and M2 equal to M.
  • the second feedback information satisfies at least one of the following:
  • the start time of the second feedback information is the same as the start time of the first feedback information
  • the second feedback information is feedback information other than the first feedback information in the feedback information to be sent.
  • the second feedback information satisfies at least one of the following:
  • the start time of the second feedback information is the same as the start time of the first feedback information
  • the second feedback information is feedback information other than the first feedback information in the feedback information to be sent.
  • the parameters of the channel access procedure include a first channel access priority CAPC, and the first CAPC satisfies at least one of the following:
  • the first CAPC has a mapping relationship with the quality of service of sidelink information
  • the first CAPC is determined according to the fourth object of the PSSCH corresponding to the first feedback information
  • the first CAPC is determined according to the priority indicated in the PSCCH corresponding to the first feedback information
  • the first CAPC is the same as the second CAPC of the PSSCH corresponding to the first feedback information
  • the first CAPC is determined according to the lowest CAPC value of the data to be transmitted
  • the first CAPC is determined according to a preset rule, and L is an integer greater than 1;
  • the first CAPC is associated with the number of candidate resources or the number of remaining candidate resources;
  • the first CAPC is the CAPC of the PSFCH stipulated in the protocol, pre-configured or configured;
  • the fourth object includes priority and logical channel priority.
  • the preset rules include any of the following:
  • the first CAPC is the lowest CAPC among the L CAPCs.
  • the first CAPC is determined according to the priority or CAPC corresponding to the first PSSCH associated with the second terminal;
  • the first CAPC is determined according to the priority or CAPC corresponding to the second PSSCH associated with the second terminal;
  • the first PSSCH is associated with the PSFCH
  • the second PSSCH is the PSSCH in the first COT of the second terminal
  • the time domain position of the PSFCH is located in the first COT.
  • the first CAPC when the first CAPC is associated with the number of candidate resources or the remaining number of candidate resources, the first CAPC satisfies any of the following:
  • the CAPC value of the first CAPC is a first threshold; when the number of candidate resources is smaller than a third preset value, the second The CAPC value of a CAPC is a second threshold;
  • the CAPC value of the first CAPC is a first threshold; when the number of remaining candidate resources is less than a fourth preset value, the The CAPC value of the first CAPC is a second threshold.
  • this embodiment is an implementation of the communication device corresponding to the embodiment shown in FIG. The description is repeated and will not be repeated here.
  • the channel access method for sidelink feedback information provided in the embodiment of the present application may be executed by a channel access device for sidelink feedback information, or the channel access device for sidelink feedback information A control module for implementing a channel access method for sidelink feedback information in .
  • the channel access device for the sidelink feedback information provided by the embodiment of the present application is described by taking the sidelink feedback information channel access device performing the channel access method for the sidelink feedback information as an example.
  • FIG. 4 is a structural diagram of a channel access device for sidelink feedback information provided by an embodiment of the present application.
  • the channel access device 400 for sidelink feedback information includes:
  • a determining module 401 configured to determine a target access mode
  • the execution module 402 is configured to execute a channel access procedure of the first feedback information according to the target access manner.
  • the target access mode is determined based on at least one of the following;
  • N is a positive integer
  • the N access methods are determined by at least one of the following: protocol agreement, network-side device configuration, network-side device pre-configuration, network-side device indication, terminal configuration, and terminal indication;
  • the second association relationship between the access method and the second object, the second object includes at least one of the feedback information, the content carried by the multiplexed physical sidelink shared channel PSSCH, and the subcarrier spacing SCS;
  • the third association relationship between the access method and the third object, the third object includes the quality of service of the feedback information, the priority of the feedback information, the service quality of the PSSCH corresponding to the feedback information, the priority of the PSSCH corresponding to the feedback information, the feedback information At least one of the number of candidate resources for information, the number of remaining candidate resources for feedback information, and the resource numbers of candidate resources for feedback information;
  • a channel access mode of the second feedback information is provided.
  • the N access modes satisfy at least one of the following:
  • the N access methods include a default first access method
  • the N access methods include a second access method indicated by the network side device through downlink control information
  • the N access modes include a third access mode indicated by the second terminal.
  • the target access method is any of the following Access method:
  • the N1 second access methods or the N2 third access methods, the last indicated access method
  • N1 and N2 are natural numbers, and the sum of N1 and N2 is N.
  • the COT of the second terminal is indicated by the second terminal or the network side device.
  • the target access mode when the target access mode is determined based on the first association relationship, the target access mode satisfies at least one of the following:
  • the target access mode is the access mode of the first type of LBT
  • the target access mode is the access mode of the second type LBT.
  • the target access mode is associated with the first object of the feedback information, and the target access mode satisfies at least one of the following:
  • the target access mode is the access mode of the first type LBT or the second type LBT;
  • the target access mode is associated with the data transmission type or data transmission target identifier in the PSSCH;
  • the target access mode is the access mode of the first type LBT or the second type LBT;
  • the target access mode is an access mode of the first type of LBT or an access mode of the second type of LBT.
  • the target access mode is associated with a data transmission type or a target identifier in the PSSCH.
  • the target access mode satisfies at least one of the following:
  • the target access method is an access method of the first type of LBT or an access method of the second type of LBT;
  • the target access method is an access method of the first type of LBT or an access method of the second type of LBT;
  • the target access mode is an access mode of the second type LBT or an access mode of the third type LBT.
  • the target access method satisfies at least one of the following:
  • Detecting the A-th candidate resource adopting the access method of the second type LBT with the first detection duration, and A is the first preset value
  • n is a positive integer
  • n is a positive integer.
  • the target access mode is at least one of the following:
  • the fastest or slowest channel access method among the M access methods is the fastest or slowest channel access method among the M access methods.
  • the fastest or slowest channel access method among the M1 access methods associated with the second feedback information is the fastest or slowest channel access method among the M1 access methods associated with the second feedback information
  • a channel access method for the mth second feedback information where m is a preset value
  • the M access modes include M2 access modes associated with the M1 access modes and the first feedback information, M1 is a positive integer less than or equal to M, and the sum of M1 and M2 equal to M.
  • the second feedback information satisfies at least one of the following:
  • the start time of the second feedback information is the same as the start time of the first feedback information
  • the second feedback information is feedback information other than the first feedback information in the feedback information to be sent.
  • the determining module 401 is further configured to determine at least one of a format of the first feedback information, a resource mapping method, and a resource selection method according to the first mapping relationship between the access method and the feedback information.
  • the first mapping relationship satisfies at least one of the following:
  • the format of the first feedback information is the first format
  • the resource mapping mode of the first feedback information is the first resource mapping mode
  • the resource selection mode of the first feedback information is the first resource selection mode
  • the format of the first feedback information is the second format
  • the resource mapping mode of the first feedback information is the second resource mapping mode
  • the resource selection mode of the first feedback information is the second resource selection mode.
  • the channel access process includes: the first terminal according to the configuration or instruction The CPE information is transmitted.
  • the indication information of the CPE information is carried in target indication signaling, and the target indication signaling is downlink control information DCI signaling or sidelink control information SCI signaling.
  • the CPE information indicates that the transmission position of the CPE is before or after the start time of the first feedback information.
  • the parameters of the channel access procedure include a first channel access priority CAPC, and the first CAPC satisfies at least one of the following:
  • the first CAPC has a mapping relationship with the quality of service of sidelink information
  • the first CAPC is determined according to the fourth object of the PSSCH corresponding to the first feedback information
  • the first CAPC is determined according to the priority indicated in the PSCCH corresponding to the first feedback information
  • the first CAPC is the same as the second CAPC of the PSSCH corresponding to the first feedback information
  • the first CAPC is determined according to the lowest CAPC value of the data to be transmitted
  • the first CAPC is determined according to a preset rule, and L is an integer greater than 1;
  • the first CAPC is associated with the number of candidate resources or the number of remaining candidate resources;
  • the first CAPC is the CAPC of the PSFCH stipulated in the protocol, pre-configured or configured;
  • the fourth object includes priority and logical channel priority.
  • the preset rules include any of the following:
  • the first CAPC is the lowest CAPC among the L CAPCs.
  • the first CAPC is determined according to the priority or CAPC corresponding to the first PSSCH associated with the second terminal;
  • the first CAPC is determined according to the priority or CAPC corresponding to the second PSSCH associated with the second terminal;
  • the first PSSCH is associated with the PSFCH
  • the second PSSCH is the PSSCH in the first COT of the second terminal
  • the time domain position of the PSFCH is located in the first COT.
  • the first CAPC when the first CAPC is associated with the number of candidate resources or the remaining number of candidate resources, the first CAPC satisfies any of the following:
  • the CAPC value of the first CAPC is a first threshold; when the number of candidate resources is smaller than a third preset value, the second The CAPC value of a CAPC is a second threshold;
  • the CAPC value of the first CAPC is a first threshold; when the number of remaining candidate resources is less than a fourth preset value, the The CAPC value of the first CAPC is a second threshold.
  • the channel access device for sidelink feedback information provided in the embodiment of the present application can implement each process in the method embodiment in FIG. 2 , and details are not repeated here to avoid repetition.
  • the channel access processing method for sidelink feedback information provided in the embodiment of the present application may be executed by a channel access processing device for sidelink feedback information, or the channel access processing device for sidelink feedback information A control module for executing the channel access processing method for sidelink feedback information in the input processing device.
  • the channel access processing device for the sidelink feedback information is taken as an example to illustrate the channel access processing device for the sidelink feedback information provided by the embodiment of the present application. .
  • FIG. 5 is a structural diagram of a channel access processing device for sidelink feedback information provided by an embodiment of the present application.
  • the channel access processing device 500 for sidelink feedback information includes :
  • the sending module 501 is configured to send target indication information to the first terminal, where the target indication information is used for the first terminal to determine a target access mode for executing the channel access procedure of the first feedback information.
  • the target indication information is used to indicate at least one of the following:
  • the third association relationship between the access method and the third object, the third object includes the quality of service of the feedback information, the priority of the feedback information, the service quality of the PSSCH corresponding to the feedback information, the priority of the PSSCH corresponding to the feedback information, the feedback information At least one of the number of candidate resources for information, the number of remaining candidate resources for feedback information, and the resource numbers of candidate resources for feedback information;
  • a channel access mode of the second feedback information is provided.
  • the target access mode when the target access mode is determined based on the first association relationship, the target access mode satisfies at least one of the following:
  • the target access mode is the access mode of the first type of LBT
  • the target access mode is the access mode of the second type LBT.
  • the target access mode is associated with a data transmission type or a target identifier in the PSSCH.
  • the target access mode is associated with a data transmission type or a target identifier in the PSSCH.
  • the target access mode satisfies at least one of the following:
  • the target access method is an access method of the first type of LBT or an access method of the second type of LBT;
  • the target access method is an access method of the first type of LBT or an access method of the second type of LBT;
  • the target access mode is an access mode of the second type of LBT or an access mode of the third type of LBT.
  • the target access mode is associated with the first object of the feedback information, and the target access mode satisfies at least one of the following:
  • the target access mode is the access mode of the first type LBT or the second type LBT;
  • the target access mode is associated with the data transmission type or data transmission target identifier in the PSSCH;
  • the target access mode is the access mode of the first type LBT or the second type LBT;
  • the target access mode is an access mode of the first type of LBT or an access mode of the second type of LBT.
  • the target access mode is at least one of the following:
  • the fastest or slowest channel access method among the M access methods is the fastest or slowest channel access method among the M access methods.
  • the fastest or slowest channel access method among the M1 access methods associated with the second feedback information is the fastest or slowest channel access method among the M1 access methods associated with the second feedback information
  • a channel access method for the mth second feedback information where m is a preset value
  • the M access modes include M2 access modes associated with the M1 access modes and the first feedback information, M1 is a positive integer less than or equal to M, and the sum of M1 and M2 equal to M.
  • the second feedback information satisfies at least one of the following:
  • the start time of the second feedback information is the same as the start time of the first feedback information
  • the second feedback information is feedback information other than the first feedback information in the feedback information to be sent.
  • the second feedback information satisfies at least one of the following:
  • the start time of the second feedback information is the same as the start time of the first feedback information
  • the second feedback information is feedback information other than the first feedback information in the feedback information to be sent.
  • the parameters of the channel access procedure include a first channel access priority CAPC, and the first CAPC satisfies at least one of the following:
  • the first CAPC has a mapping relationship with the quality of service of sidelink information
  • the first CAPC is determined according to the fourth object of the PSSCH corresponding to the first feedback information
  • the first CAPC is determined according to the priority indicated in the PSCCH corresponding to the first feedback information
  • the first CAPC is the same as the second CAPC of the PSSCH corresponding to the first feedback information
  • the first CAPC is determined according to the lowest CAPC value of the data to be transmitted
  • the first CAPC is determined according to a preset rule, and L is an integer greater than 1;
  • the first CAPC is associated with the number of candidate resources or the number of remaining candidate resources;
  • the first CAPC is the CAPC of the PSFCH stipulated in the protocol, pre-configured or configured;
  • the fourth object includes priority and logical channel priority.
  • the preset rules include any of the following:
  • the first CAPC is the lowest CAPC among the L CAPCs.
  • the first CAPC is determined according to the priority or CAPC corresponding to the first PSSCH associated with the second terminal;
  • the first CAPC is determined according to the priority or CAPC corresponding to the second PSSCH associated with the second terminal;
  • the first PSSCH is associated with the PSFCH
  • the second PSSCH is the PSSCH in the first COT of the second terminal
  • the time domain position of the PSFCH is located in the first COT.
  • the first CAPC when the first CAPC is associated with the number of candidate resources or the remaining number of candidate resources, the first CAPC satisfies any of the following:
  • the CAPC value of the first CAPC is a first threshold; when the number of candidate resources is smaller than a third preset value, the second The CAPC value of a CAPC is a second threshold;
  • the CAPC value of the first CAPC is a first threshold; when the number of remaining candidate resources is less than a fourth preset value, the The CAPC value of the first CAPC is a second threshold.
  • the channel access processing device for sidelink feedback information provided in the embodiment of the present application can implement each process in the method embodiment in FIG. 3 , and details are not repeated here to avoid repetition.
  • the channel access device for sidelink feedback information or the channel access processing device for sidelink feedback information in the embodiments of the present application may be a device, a device with an operating system or an electronic device, or a component or an integrated device in a terminal. circuit, or chip.
  • the device may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include but not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (Personal Vomputer, PC), a television ( television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.
  • the channel access device for sidelink feedback information or the channel access processing device for sidelink feedback information provided in the embodiments of the present application can implement the various processes implemented by the method embodiments in Figures 2 to 3, and achieve the same technical effect , to avoid repetition, it will not be repeated here.
  • this embodiment of the present application further provides a communication device 600, including a processor 601, a memory 602, and programs or instructions stored in the memory 602 and operable on the processor 601,
  • a communication device 600 including a processor 601, a memory 602, and programs or instructions stored in the memory 602 and operable on the processor 601
  • the program or instruction is executed by the processor 601
  • the above-mentioned channel access method for sidelink feedback information or the various processes in the embodiment of the channel access processing method for sidelink feedback information can be achieved, and the same technical effect can be achieved. Repeat, no more details here.
  • the embodiment of the present application also provides a terminal, including a processor and a communication interface, and the processor is configured to determine a target access mode; and execute a channel access process of the first feedback information according to the target access mode.
  • the communication interface is configured to send target indication information to the first terminal, where the target indication information is used for the first terminal to determine a target access manner for executing the channel access procedure of the first feedback information.
  • This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
  • FIG. 7 is a schematic diagram of a hardware structure of a terminal implementing various embodiments of the present application.
  • the terminal 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710. At least some parts.
  • the terminal 700 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 710 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
  • a power supply such as a battery
  • the terminal structure shown in FIG. 7 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 704 may include a graphics processing unit (Graphics Processing Unit, GPU) and a microphone, and the graphics processing unit is controlled by an image capturing device (such as a camera) in a video capture mode or an image capture mode.
  • the obtained image data of still picture or video is processed.
  • the display unit 706 may include a display panel, and the display panel may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 707 includes a touch panel and other input devices. Touch panel, also known as touch screen.
  • the touch panel can include two parts: a touch detection device and a touch controller.
  • Other input devices may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, and joysticks, which will not be repeated here.
  • the radio frequency unit 701 receives the downlink data from the network side device, and processes it to the processor 710; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 701 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 memory 709 can be used to store software programs or instructions as well as various data.
  • the memory 709 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 709 may include a high-speed random access memory, and may also include a non-transitory memory, wherein the non-transitory memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one disk storage device, flash memory device, or other non-transitory solid state storage device.
  • the processor 710 may include one or more processing units; optionally, the processor 710 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 710 .
  • the processor 710 is configured to determine a target access mode; and execute a channel access process of the first feedback information according to the target access mode.
  • the radio frequency unit 701 is configured to send target indication information to the first terminal, where the target indication information is used for the first terminal to determine a target access manner for executing the channel access procedure of the first feedback information.
  • the processor 710 and the radio frequency unit 701 can implement the above-mentioned channel access method for sidelink feedback information or each step in the channel access processing method for sidelink feedback information, and can achieve the same effect. Reference may be made to the description of the foregoing embodiments, and details are not repeated here.
  • the embodiment of the present application also provides a network side device, including a processor and a communication interface, the communication interface is used to send target indication information to the first terminal, and the target indication information is used for the first terminal to determine to perform the first feedback The target access mode of the information channel access process.
  • the network-side device embodiment corresponds to the above-mentioned network-side device method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.
  • the embodiment of the present application also provides a network side device.
  • the network side device 800 includes: an antenna 801 , a radio frequency device 802 , and a baseband device 803 .
  • the antenna 801 is connected to the radio frequency device 802 .
  • the radio frequency device 802 receives information through the antenna 801, and sends the received information to the baseband device 803 for processing.
  • the baseband device 803 processes the information to be sent and sends it to the radio frequency device 802
  • the radio frequency device 802 processes the received information and sends it out through the antenna 801 .
  • the foregoing frequency band processing device may be located in the baseband device 803 , and the method performed by the network side device in the above embodiments may be implemented in the baseband device 803 , and the baseband device 803 includes a processor 804 and a memory 805 .
  • the baseband device 803 may include at least one baseband board, for example, a plurality of chips are arranged on the baseband board, as shown in FIG. The operation of the network side device shown in the above method embodiments.
  • the baseband device 803 may further include a network interface 806, configured to exchange information with the radio frequency device 802, such as a Common Public Radio Interface (Common Public Radio Interface, CPRI).
  • a network interface 806, configured to exchange information with the radio frequency device 802, such as a Common Public Radio Interface (Common Public Radio Interface, CPRI).
  • CPRI Common Public Radio Interface
  • the network-side device in this embodiment of the present application also includes: instructions or programs stored in the memory 805 and operable on the processor 804, and the processor 804 calls the instructions or programs in the memory 805 to execute the modules shown in FIG. 3 In order to avoid repetition, the implementation method and achieve the same technical effect will not be repeated here.
  • the embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the above-mentioned channel access method or sidechain feedback information of the sidelink is implemented.
  • a readable storage medium on which a program or instruction is stored, and when the program or instruction is executed by a processor, the above-mentioned channel access method or sidechain feedback information of the sidelink is implemented.
  • Each process of the embodiment of the channel access processing method for channel feedback information can achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the processor is the processor in the electronic device described in the above embodiments.
  • the readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
  • the embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to realize the above-mentioned side link feedback information
  • the various processes in the embodiments of the channel access method or the channel access processing method for sidelink feedback information can achieve the same technical effect, and are not repeated here to avoid repetition.
  • chips mentioned in the embodiments of the present application may also be called system-on-chip, system-on-chip, system-on-a-chip, or system-on-a-chip.
  • An embodiment of the present application further provides a program product, the program product is stored in a non-transitory storage medium, and the program product is executed by at least one processor to implement the above channel access method for sidelink feedback information or
  • the various processes of the embodiments of the channel access processing method for sidelink feedback information can achieve the same technical effect, and are not repeated here to avoid repetition.
  • the embodiment of the present application also provides a communication device, which is configured to execute the various processes in the above embodiments of the channel access method for sidelink feedback information or the channel access processing method for sidelink feedback information, and can achieve the same To avoid repetition, the technical effects will not be repeated here.
  • the term “comprising”, “comprising” or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
  • the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
  • the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , optical disc), including several instructions to enable a terminal (which may be a mobile phone, computer, server, air conditioner, or base station, etc.) to execute the methods described in various embodiments of the present application.

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Abstract

本申请公开了一种旁链路反馈信息的信道接入方法、处理方法及相关设备,属于通信技术领域。本申请实施例的旁链路反馈信息的信道接入方法包括:第一终端确定目标接入方式;所述第一终端按照所述目标接入方式执行第一反馈信息的信道接入流程。

Description

旁链路反馈信息的信道接入方法、处理方法及相关设备
相关申请的交叉引用
本申请主张在2021年08月02日在中国提交的中国专利申请No.202110881494.9的优先权,其全部内容通过引用包含于此。
技术领域
本申请属于通信技术领域,尤其涉及一种旁链路反馈信息的信道接入方法、处理方法及相关设备。
背景技术
随着通信系统的发展,基于旁链路传输的应用越来越广泛。在未来通信系统中,共享频谱例如非授权频段(unlicensed band)可以作为授权频段(licensed band)的补充帮助运营商对服务进行扩容。然而在非授权频段上如何实现旁链路反馈信息的信道接入成为亟需解决的问题。
申请内容
本申请实施例提供一种旁链路反馈信息的信道接入方法、处理方法及相关设备,能够解决在非授权频段上实现旁链路反馈信息的信道接入的问题。
第一方面,提供了一种旁链路反馈信息的信道接入方法,包括:
第一终端确定目标接入方式;
所述第一终端按照所述目标接入方式执行第一反馈信息的信道接入流程。
第二方面,提供了一种旁链路反馈信息的信道接入处理方法,包括:
通信设备向第一终端发送目标指示信息,所述目标指示信息用于供所述第一终端确定执行第一反馈信息的信道接入流程的目标接入方式;
其中,所述通信设备为调度终端、所述第一反馈信息的接收端或者网络侧设备。
第三方面,提供了一种旁链路反馈信息的信道接入装置,包括:
确定模块,用于确定目标接入方式;
执行模块,用于按照所述目标接入方式执行第一反馈信息的信道接入流程。
第四方面,提供了一种旁链路反馈信息的信道接入处理装置,包括:
发送模块,用于向第一终端发送目标指示信息,所述目标指示信息用于供所述第一终端确定执行第一反馈信息的信道接入流程的目标接入方式。
第五方面,提供了一种终端,该终端包括处理器、存储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或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第六方面,提供了一种终端,包括处理器及通信接口,其中,所述处理器用于确定目标接入方式;按照所述目标接入方式执行第一反馈信息的信道接入流程。
或者,所述通信接口用于向第一终端发送目标指示信息,所述目标指示信息用于供所述第一终端确定执行第一反馈信息的信道接入流程的目标接入方式。
第七方面,提供了一种网络侧设备,该网络侧设备包括处理器、存储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或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第八方面,提供了一种网络侧设备,包括处理器及通信接口,其中,所述通信接口用于向第一终端发送目标指示信息,所述目标指示信息用于供所述第一终端确定执行第一反馈信息的信道接入流程的目标接入方式。
第九方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤,或者实现如第二方面所述的方法的步骤。
第十方面,本申请实施例提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如第一方面所述的方法的步骤,或者实现如第二方面所述的方法的步骤。
第十一方面,提供了一种计算机程序/程序产品,所述计算机程序/程序产品存储在非瞬态的存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面所述的方法,或实现如第二方面所述的方法。
第十二方面,提供了一种通信设备,被配置为执行如第一方面所述的方法的步骤,或者被配置为执行如第二方面所述的方法的步骤。
本申请实施例中,通过第一终端确定目标接入方式;并按照所述目标接入方式执行第一反馈信息的信道接入流程,这样可以在共享频段上实现旁链路反馈信息的信道接入,从而发送反馈信息。因此,本申请实施例可以提高系统资源利用率,实现可靠性的平衡。
附图说明
图1是本申请实施例可应用的一种网络系统的结构图;
图2是本申请实施例提供的一种旁链路反馈信息的信道接入方法的流程图;
图3是本申请实施例提供的一种旁链路反馈信息的信道接入处理方法的流程图;
图4是本申请实施例提供的一种旁链路反馈信息的信道接入装置的结构图;
图5是本申请实施例提供的一种旁链路反馈信息的信道接入处理装置的结构图;
图6是本申请实施例提供的一种终端的结构图;
图7是本申请实施例提供的一种通信设备的结构图;
图8是本申请实施例提供的一种网络侧设备的结构图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描 述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,这些技术也可应用于NR系统应用以外的应用,如第6代(6 th Generation,6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中,终端11也可以称作终端设备或者用户终端(User Equipment,UE),终端11可以是手机、平板电脑(Tablet Personal Computer,TPC)、膝上型电脑(Laptop Computer,LC)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、可穿戴式设备(Wearable Device,WD)或车载设备(Vehicle User Equipment,VUE)、行人终端(Pedestrian User Equipment,PUE)等终端侧设备,可穿戴式设备包括:智能手表、手环、耳机、眼镜等。需要说明的是,在本申请实施例并不限定终端11的具体类型。网络侧设备12可以是基站或核心网设备,其中,基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended  Service Set,ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、无线局域网络(Wireless Local Area Networks,WLAN)接入点、无线保真(Wireless Fidelity,WiFi)节点、发送接收点(Transmitting Receiving Point,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的基站为例,但是并不限定基站的具体类型。
为了方便理解,以下对本申请实施例涉及的一些内容进行说明:
一、共享频段
共享频段可以称之为非授权频段,为了与NR部署保持一致,并尽可能的最大化基于NR的非授权接入,非授权频段可以工作在5GHz、37GHz和60GHz频段。由于非授权频段由多种无线接入技术(Radio Access Technology,RATs)共用,例如WiFi,雷达,LTE-授权频谱辅助接入(Licensed-Assisted Access,LAA)等,因此在某些国家或者区域,非授权频段在使用时必须符合规则(regulation)以保证所有设备可以公平的使用该资源。例如先听后说(Listen Before Talk,LBT)和最大信道占用时间(Maximum Channel Occupancy Time,MCOT)等规则。当传输节点需要发送信息时,需要先做LBT时,对周围的节点进行功率检测(Energy Detection,ED),当检测到的功率低于一个门限时,认为信道为空(idle),传输节点可以进行发送。反之,则认为信道为忙,传输节点不能进行发送。传输节点可以是基站、UE和WiFi接入点(Access Point,AP)等。传输节点开始传输后,信道占用时间(Channel Occupancy Time,COT)不能超过MCOT。
常用的LBT的类型(Category)可以分为Category 1(Cat 1)、Category 2(Cat 2)和Category4(Cat 4)。Category1 LBT是发送节点不做LBT,即no LBT或者立即发送(immediate transmission)。Category 2 LBT是一次(one-shot)LBT,即节点在传输前做一次LBT,信道为空则进行传输,信道为忙则不传输。Category 4 LBT是基于回退(back-off)的信道侦听机制,当传输节点侦听到信道为忙时,进行回退,继续做侦听,直到侦听到信道为空。对于NR节点(NR Node B,gNB),Category 2 LBT应用于没有解调参考信号(Demodulation Reference Signal,DRS)的物理下行共享信道(Physical downlink shared channel, PDSCH)、Category 4 LBT应用于PDSCH、物理下行控制信道(Physical downlink control channel,PDCCH)和增强的PDCCH(ePDCCH)。对于UE,Category4 LBT对应于类型1上行(Uplink,UL)接入流程(type1 UL channel access procedure),Category2 LBT对应于类型2上行接入流程(type2 UL channel access procedure)。Cat 2 LBT存在16us的Cat 2 LBT,以及25us的Cat 2 LBT。
二、基于负载的设备(load based equipment,LBE)网络操作
对于LBE,传输节点可以从任意时刻开始进行LBT,直到侦听到信道为空方可进行传输。对传输节点来说,不存在固定的侦听时间,当侦听到信道为忙时也不需要跳过,可以通过backoff若干个扩展空闲信道评估(Extend Clear Channel Assessment,eCCA)继续进行侦听,直到eCCA的计数器(counter)为零。
三、信道接入优先级等级(Channel access priority class,CAPC)。
根据不同的CAPC值进行的LBT,发起的MCOT是不同的。
可选地,信道接入优先级越高,发起的MCOT越短。
四、旁链路(sidelink,SL)传输
NR SL包括如下信道:
物理旁链路控制信道(Physical Sidelink Control Channel,PSCCH);
物理旁链路共享信道(Physical Sidelink Shared Channel,PSSCH);
物理旁链路广播信道(Physical Sidelink Broadcast Channel,PSBCH);
物理旁链路反馈信道(Physical Sidelink Feedback Channel,PSFCH)。
其中,PSSCH以子信道为单位进行资源分配,频域上采用连续的资源分配方式。PSCCH的时域资源为高层配置的符号数,频域大小为高层配置的参数,且PSCCH的频域资源限制小于等于一个子信道的大小,且PSCCH位于PSSCH的最低子信道的范围内。
五、NR SL资源分配方式
NR车联万物(Vehicle-to-Everything,V2X)定义了两种资源分配模式(mode),一种是mode1,为基站调度资源;另一种是mode2,UE自己决定使用什么资源进行传输。此时资源信息可能来自基站的广播消息或者预配置 的信息。UE如果工作在基站范围内并且与基站有无线资源控制(Radio Resource Control,RRC)连接,可以是mode1和/或mode2,UE如果工作在基站范围内但与基站没有RRC连接,只能工作在mode2。如果UE在基站范围外,那么只能工作在mode2,根据预配置的信息来进行V2X传输。
对于mode 2,具体的工作方式如下:
1)发送终端(TX UE)在资源选择被触发后,首先确定资源选择窗口,资源选择窗口的下边界在资源选择触发后的T1时间,资源选择的上边界在触发后的T2时间,其中T2是UE实现的方式在其传输块(Transport Block,TB)传输的数据包延迟预算(Packet Delay Budget,PDB)内选择的值,T2不早于T1。
2)UE在资源选择之前,需要确定资源选择的候选资源集合(candidate resource set),根据资源选择窗口内的资源上测量的参考信号接收功率(Reference Signal Received Power,RSRP)与相应的RSRP门限(threshold)做对比,如果RSRP低于RSRP threhold,那么该资源可以纳入候选资源集合。
3)资源集合确定后,UE随机在候选资源集合中选择传输资源。另外,UE在本次传输可以为接下来的传输预留传输资源。
且NR V2X支持链式的资源预留方式,也就是,一个旁链路控制信息(Sidelink Control Information,SCI)可以预留当前的资源,最多可以在额外预留两个资源,在下一个资源中,可以再指示两个预留资源。在选择窗内,可以采用动态预留的方式持续预留资源。
六、资源检测
在NRU中,“检测”是判断检测的资源上是繁忙还是空闲,会考虑信道带宽的占用,以及能量检测的结果来判断。根据判断结果,来决定计数器是否递减,或者下一个候选资源是否发送信息。
在SL中,“检测”是根据检测的资源上的RSRP来判断该资源上的资源占用/干扰情况。进而判断对应的资源选择窗口中的候选资源是否可能受到较为严重的干扰,已决定是否需要排除对应的资源。
NRU和SL上都采用检测的概念,但是,在两个系统中,检测的标准是不同的。我们这个专利中,如果说到检测,表示的是NRU检测和/或SL检测, 或者一种新的检测方法判断,这里不做限定。
下面结合附图,通过一些实施例及其应用场景对本申请实施例提供的旁链路反馈信息的信道接入方法进行详细地说明。
请参见图2,图2是本申请实施例提供的一种旁链路反馈信息的信道接入方法的流程图,如图2所示,包括以下步骤:
步骤201,第一终端确定目标接入方式;
本申请实施例中,上述目标接入方式可以由协议约定,也可以由网络侧设备或者第二终端指示或配置,还可以由第一终端决定。通过协议约定时,可直接约定默认的接入方式,也可以约定确定目标接入方式的方式。由网络侧设备、调度终端或者第二终端指示或配置时,可以直接指示目标接入方式的信息,也可以指示确定目标接入方式的方式,例如指示目标接入方式与某一参数关联。其中,上述第一终端可以理解为PSSCH的接收终端,上述第二终端可以理解为PSSCH的发送终端或者调度终端,上述第一反馈信息可以理解为针对该PSSCH传输的反馈信息,上述目标接入方式可以成为目标信道接入方式。
换句话说,在本申请实施例中,可以根据协议约定、预配置、配置或指示的方式选择信道接入方式,其中,选择的目标接入方式可以包括上述实施例中描述的基于Cat 1 LBT、Cat 2 LBT或Cat 4 LBT的信道接入方式。
步骤202,所述第一终端按照所述目标接入方式执行第一反馈信息的信道接入流程。
本申请实施例中,第一终端确定目标接入方式后,可以按照目标接入方式,在非授权频段上执行第一反馈信息的信道接入流程。具体地,信道接入流程包括资源检测、资源选择和第一反馈信息的发送等操作。当然,本申请实施例中,上述目标接入方式也不限制只用于非授权频段上的信道接入。
需要说明的是,上述第一反馈信息可以包括承载于PSFCH信道的旁链路信息以及承载于PSSCH上的其他反馈信息中的至少一项。其中,承载于PSFCH信道的旁链路信息包括HARQ信息,承载于PSSCH上的其他反馈信息可以包括信道状态信息(Channel State Information,CSI)报告和接收端辅助信息等。还有可能,CSI报告可能承载于PSFCH上;接收端辅助信息也可 能是承载于PSFCH上的。在本发明中都是认为是适用的。
本申请实施例中,通过第一终端确定目标接入方式;并按照所述目标接入方式执行第一反馈信息的信道接入流程,这样可以在共享频段上实现旁链路反馈信息的信道接入,从而发送反馈信息。因此,本申请实施例可以提高系统资源利用率,实现可靠性的平衡。
可选地,在一些实施例中,所述目标接入方式基于以下至少一项确定;
N个接入方式,N为正整数,所述N个接入方式由以下至少一项确定:协议约定、网络侧设备配置、网络侧设备预配置、网络侧设备指示、终端配置和终端指示;
接入方式与第一对象的第一关联关系,所述第一对象包括物理旁链路反馈信道PSFCH的资源、格式和序列中的至少一项;
接入方式与第二对象的第二关联关系,所述第二对象包括反馈信息、复用的物理旁链路共享信道PSSCH携带的内容和子载波间隔(Sub-Carrier Space,SCS)中的至少一项;
接入方式与第三对象的第三关联关系,所述第三对象包括反馈信息的服务质量、反馈信息的优先级、反馈信息对应的PSSCH的服务质量、反馈信息对应的PSSCH的优先级、反馈信息的候选资源数量、反馈信息的剩余候选资源数量和反馈信息的候选资源的资源编号中的至少一项;
第二反馈信息的信道接入方式。
本申请实施例中,上述接入方式可以称之为信道接入方式。上述终端配置可以理解为第二终端配置,上述终端指示可以理解为第二终端指示。
本申请实施例中,在所述目标接入方式基于N个接入方式确定,且N的取值为1的情况下,可以理解为,协议约定、网络侧设备配置、网络侧设备预配置、网络侧设备指示、终端配置和终端指示第一终端的目标接入方式为基于Cat 1 LBT、Cat 2 LBT或Cat 4 LBT的信道接入方式。
可选地,所述N个接入方式满足以下至少一项:
在所述第一反馈信息位于第二终端的信道占用时间COT内的情况下,所述N个接入方式包括默认的第一接入方式;
所述N个接入方式包括网络侧设备通过下行控制信息指示的第二接入方 式;
所述N个接入方式包括所述第二终端指示的第三接入方式。
本申请实施例中,默认的第一接入方式可以理解为协议默认的第一接入方式,具体的,该第一接入方式可以理解为Cat 1 LBT或Cat 2 LBT。在所述第一反馈信息位于第二终端的信道占用时间COT范围内的情况下,第一终端可以基于默认的第一接入方式进行第一反馈信息的信道接入流程,从而可以快速进行反馈,降低检测开销。
可选地,上述第二终端的COT可以由第二终端或网络侧设备指示,在此不做进一步的限定。例如,调度终端或PSSCH的发送终端发送SCI(第一级SCI和/或第二级SCI)指示调度终端或PSSCH的发送终端的剩余COT。或者网络侧设备通过下行控制信息(Downlink Control Information,DCI)指示调度终端或PSSCH的发送终端的剩余COT。
应理解,网络侧设备可以通过DCI显示或隐式指示第一终端的信道接入方式,即第二接入方式。调度终端或PSSCH的发送终端可以通过SCI显示或隐式指示第一终端的信道接入方式,即第三接入方式。需要说明的是,采用Cat 1 LBT可以尽快发送,但是信道质量不一定好,发送失败,增加系统干扰;Cat 2 LBT发送可以测量后发送,保证信道质量,但是可能信道被抢占。本申请实施例中,动态指示接入方式,具有较高的灵活性。
可选地,在第一终端接收了多个DCI或SCI指示的该第一反馈信息的接入方式的情况下,第一终端可以按照一定的规则确定目标接入方式进行信道接入。例如,第一终端以最近的DCI或SCI指示的信道接入方式进行信道接入,或者第一终端以指示的LBT时间最长(例如Cat 4)或最短(例如Cat 1)的信道接入方式进行信道接入。换句话说:在N大于1,且N个接入方式包括N1个所述第二接入方式和N2个所述第三接入方式的情况下,所述目标接入方式为以下任一项接入方式:
所述N个接入方式、N1个第二接入方式或者所述N2个第三接入方式中,最近一次指示的接入方式;
所述N个接入方式、所述N1个第二接入方式或者N2个第三接入方式中的预设接入方式,所述预设接入方式由网络侧设备或第二终端指示;
所述N个接入方式中对应的先听后说LBT时间最长或最短的接入方式;
其中,N1和N2均为自然数,且N1与N2的和值为N。
本申请实施例中,最近的一次指示,是满足一个时间间隔的最近的一次指示。换句话说,可以理解为最近一次有效指示。
可选地,在基于所述第一关联关系确定所述目标接入方式的情况下,所述目标接入方式满足以下至少一项:
在所述第一反馈信息为第一格式或第一序列或第一符号数目的情况下,所述目标接入方式为第一类型LBT的接入方式;
在所述第一反馈信息为第二格式或第二序列或第二符号数目的情况下,所述目标接入方式为第二类型LBT的接入方式。
本申请实施例中,上述第一格式(format)可以理解为PSFCH format 1,上述第二格式可以理解为PSFCH format 2。上述第一类型LBT的接入方式可以理解为基于Cat 1 LBT的信道接入方式,或者称之为Cat 1 LBT。上述第二类型LBT的接入方式可以理解为基于Cat 2 LBT的信道接入方式,或者称之为Cat 2 LBT。其中,PSFCH format 1可以为M3(例如M3=4)符号的PSFCH格式;PSFCH format 2为M4符号的PSFCH格式。M4≥M3。M1和M2的包括或者不包括循环前缀扩展(Cyclic Prefix Extension,CPE)的长度。
可选地,所述目标接入方式与反馈信息的第一对象关联,所述目标接入方式满足以下至少一项:
在所述第一反馈信息仅承载于PSFCH的情况下,所述目标接入方式为第一类型LBT或第二类型LBT的接入方式;
所述目标接入方式与PSSCH中数据传输类型或数据传输目标标识关联;
在所述第一反馈信息携带旁链路调度请求的情况下,所述目标接入方式为第一类型LBT或第二类型LBT的接入方式;
在所述第一反馈信息携带旁链路参考信号的情况下,所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式。
在基于所述第二关联关系确定所述目标接入方式的情况下,所述目标接入方式与PSSCH中数据传输类型或目标标识关联。
假设在所述第一反馈信息仅承载于PSFCH的情况下,所述目标接入方式 为第一类型LBT。此时,对于SCS为X,PSFCH占用四个正交频分复用(Orthogonal frequency division multiplex,OFDM)符号,满足Cat 1 LBT最大584us的需求。
可选地,所述目标接入方式满足以下至少一项:
在所述数据传输类型为广播数据类型或所述目标标识为广播标识的情况下,所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式;
在所述数据传输类型为组播数据类型或所述目标标识为组播标识的情况下,所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式;
在所述数据传输类型为单播数据类型或所述目标标识为单播标识的情况下,所述目标接入方式为第二类型LBT的接入方式或第三类型LBT的接入方式。
本申请实施例中,上述第三类型LBT的接入方式可以理解为基于Cat 4 LBT的信道接入方式,也可以称之为Cat 4 LBT。
可选地,在基于所述第二关联关系确定所述目标接入方式,且所述目标接入方式与反馈信息的候选资源数量、反馈信息的剩余资源数量和反馈信息的候选资源的资源编号中的至少一项关联的情况下,所述目标接入方式满足以下至少一项:
检测第A个候选资源,采用第一检测时长的第二类型LBT的接入方式,A为第一预设值;
在剩余候选资源的数量小于或等于第二预设值的情况下,采用第二类型LBT的接入方式或者第一类型LBT的接入方式;
在检测所述第A个候选资源时,当采用第一检测时长的第二类型LBT的接入方式失败时,则在检测第A+n个候选资源时,采用第二检测时长的第二类型LBT的接入方式或者第三类型LBT的接入方式,n为正整数;
在检测前A个候选资源时,当采用第一检测时长的第二类型LBT的接入方式失败时,则在检测第A+n个候选资源时,采用第二检测时长的第二类型LBT的接入方式或者第三类型LBT的接入方式,n为正整数。
需要说明的是,本申请实施例中,第二类型LBT的接入方式包括以下两种:
第一检测时长的第二类型LBT的接入方式;
第二检测时长的第二类型LBT的接入方式。
在本申请中,未限定第二类型LBT的接入方式的检测时长的情况下,描述的第二类型LBT的接入方式可以理解为:第一检测时长的第二类型LBT的接入方式或第二检测时长的第二类型LBT的接入方式。其中,第一检测时长可以为16us,第一检测时长可以为25us。即本申请实施例中,第一检测时长的第二类型LBT的接入方式可以表示为Cat 2(16us)LBT,第二检测时长的第二类型LBT的接入方式可以表示为Cat 2(25us)LBT。
可选地,如果配置了多个后续资源,也可以针对前面的资源先进行Cat 2 LBT或Cat 4 LBT,如果前面都失败,则针对最后一个资源采用Cat 1 LBT。
可选地,在所述目标接入方式基于第二反馈信息的信道接入方式确定的情况下,所述目标接入方式为以下至少之一:
M个接入方式中最快或最慢的信道接入方式;
所述第二反馈信息关联的M1个接入方式中最快或最慢的信道接入方式;
第m个第二反馈信息的信道接入方式,其中,m为预设的值;
与第一反馈信息频域资源相邻或者间隔最近的第二反馈信息的信道接入方式;
其中,所述M个接入方式包括与所述M1个接入方式和与所述第一反馈信息关联的M2个接入方式,M1为小于或等于M的正整数,M1与M2的和值等于M。
本申请实施例中,在目标接入方式为M个接入方式中最快的信道接入方式的情况下,例如,若其他反馈信息或者第一反馈信息配置了Cat 1 LBT,则以Cat 1 LBT接入;若没配置Cat 1 LBT,配置了Cat 2 LBT,则以Cat 2 LBT接入。
可选地,所述第二反馈信息满足以下至少一项:
所述第二反馈信息的起始时刻与所述第一反馈信息的起始时刻相同;
所述第二反馈信息为待发送的反馈信息中除所述第一反馈信息之外的其 他反馈信息。
可选地,在一些实施例中,所述方法还包括:
所述第一终端根据接入方式与反馈信息的第一映射关系,确定所述第一反馈信息的格式、资源映射方式和资源选择方式中的至少一项。
本申请实施例中,在反馈信息格式与反馈信息的信道接入方式或SCS关联的情况下,如果是Cat 2 LBT或Cat 4 LBT的接入方式,可以考虑4 OS的传输。如果是Cat 1的方式,可以考虑更长符号的PSFCH,来保证可靠性。
可选地,所述第一映射关系满足以下至少一项:
在所述目标接入方式为第二类型LBT的接入方式或第三类型LBT的接入方式的情况下,所述第一反馈信息的格式为第一格式;
在所述目标接入方式为第二类型LBT的接入方式或第三类型LBT的接入方式的情况下,所述第一反馈信息的资源映射方式为第一资源映射方式;
在所述目标接入方式为第二类型LBT的接入方式或第三类型LBT的接入方式的情况下,所述第一反馈信息的资源选择方式为第一资源选择方式;
在所述目标接入方式为第一类型LBT的接入方式的情况下,所述第一反馈信息的格式为第二格式;
在所述目标接入方式为第一类型LBT的接入方式的情况下,所述第一反馈信息的资源映射方式为第二资源映射方式;
在所述目标接入方式为第一类型LBT的接入方式的情况下,所述第一反馈信息的资源选择方式为第二资源选择方式。
本申请实施例中,上述第一资源映射方式可以理解为时频资源映射方式1,上述第二资源映射方式可以理解为时频资源映射方式2。换句话说:若采用Cat 2/Cat 4 LBT的信道接入方式,对应PSFCH format 1/时频资源映射方式1;若采用Cat 1 LBT的信道接入方式,对应PSFCH format 2/时频资源映射方式2。
可选地,在所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式的情况下,所述信道接入流程包括:所述第一终端根据配置或指示的CPE信息进行传输。
应理解,为了实现Cat 1 LBT/Cat 2 LBT对应的间隙(GAP);如果是位 于发送终端的PSSCH后,属于发送终端实现,不需要通知接收终端。
可选地,所述CPE信息的指示信息携带在目标指示信令中,所述目标指示信令为下行控制信息DCI信令或旁链路控制信息SCI信令。
本申请实施例中,上述指示信息可以显示或隐式指示CPE信息。所述CPE信息指示CPE的传输位置位于所述第一反馈信息的起始时刻之前或之后。
应理解,所述CPE信息指示CPE的传输位置位于所述第一反馈信息之前可以理解为所述CPE信息指示CPE的传输位置位于所述第一反馈信息的传输开始时刻之前,换句话说,所述CPE信息指示CPE的传输位置位于调度或指示的PSFCH/PSSCH起始位置前。同样地,所述CPE信息指示CPE的传输位置位于所述第一反馈信息之后可以理解为所述CPE信息指示CPE的传输位置位于所述第一反馈信息的传输开始时刻之后,换句话说,所述CPE信息指示CPE的传输位置位于调度或指示的PSFCH/PSSCH起始位置后。例如,可以通过SCI携带1bit指示信息指示CPE的传输位置位于所述第一反馈信息的起始时刻之前或之后。
可选地,在一些实施例中,所述信道接入流程的参数包括第一信道接入优先级CAPC,所述第一CAPC满足以下至少一项:
所述第一CAPC与旁链路信息服务质量具有映射关系;
所述第一CAPC根据所述第一反馈信息对应的PSSCH的第四对象确定;
所述第一CAPC根据所述第一反馈信息对应的PSCCH中指示的优先级确定;
所述第一CAPC与所述第一反馈信息对应的PSSCH的第二CAPC相同;
所述第一CAPC根据待传输数据的最低CAPC值确定;
在所述第一反馈信息对应L个CAPC,且所述第一反馈信息仅承载于PSFCH的情况下,所述第一CAPC根据预设规则确定,L为大于1的整数;
所述第一CAPC与候选资源数量或剩余候选资源数量关联;
所述第一CAPC为协议约定、预配置或配置的PSFCH的CAPC;
其中,所述第四对象包括优先级和逻辑信道优先级。
本申请实施例中,在所述第一CAPC与旁链路信息服务质量具有映射关系的情况下,第一终端可以根据待传输数据的优先级,以及CAPC与SL信 息服务质量(Quality of Service,QoS)的映射关系,确定CAPC,进行信道接入。可选地,待传输数据可以包括PSFCH、CSI报告、SL调度请求(Scheduling Request,SR)、PSSCH和PSCCH中的至少一种。
在所述第一反馈信息仅承载在PSFCH,且在所述第一CAPC根据所述第一反馈信息对应的PSSCH的第四对象确定的情况下,第一CAPC根据PSFCH对应的PSSCH的优先级或逻辑信道优先级确定。在所述第一反馈信息仅承载在PSFCH,且在所述第一CAPC根据所述第一反馈信息对应的PSCCH中指示的优先级确定的情况下,第一CAPC根据PSFCH对应的PSCCH携带SCI中指示的优先级确定。
可选地,在一些实施例中,当PSFCH中不存在优先级指示,CAPC关联到PSSCH的CAPC。
可选地,CAPC的值越低,对应的优先级越高。或者,CAPC的值越高,对应的优先级越高。
需要说明的是,所述第一反馈信息仅承载于PSFCH可以理解为PSFCH only传输。若存在多个PSFCH传输,且为PSFCH only传输,则第一CAPC根据上述预设规则确定。
可选地,所述预设规则包括以下任一项:
所述第一CAPC为所述L个CAPC中的最低CAPC;
所述第一CAPC根据第二终端关联的第一PSSCH对应的优先级或者CAPC确定;
所述第一CAPC根据第二终端关联的第二PSSCH对应的优先级或者CAPC确定;
其中,所述第一PSSCH与所述PSFCH关联,所述第二PSSCH为第二终端的第一COT内的PSSCH,且所述PSFCH的时域位置位于所述第一COT内。
可选地,在所述第一CAPC与候选资源数量或剩余候选资源数量关联的情况下,所述第一CAPC满足以下任一项:
在所述候选资源数量大于或等于第三预设值的情况下,所述第一CAPC的CAPC值为第一阈值;在所述候选资源数量小于第三预设值的情况下,所 述第一CAPC的CAPC值为第二阈值;
在所述剩余候选资源数量大于或等于第四预设值的情况下,所述第一CAPC的CAPC值为第一阈值;在所述剩余候选资源数量小于第四预设值的情况下,所述第一CAPC的CAPC值为第二阈值。
本申请实施例中,CAPC的调整,在之前接收的TB对应的接入参数基础上进行调整。通过对CAPC进行调整,从而可以在候选资源数目越少的情况下,考虑提高接入的优先级,以尽早接入。
为了更好的理解本申请,以下通过一些具体实例进行详细说明。
实施例一:发送终端(Transmit X UE,TX UE)指示(initiated)COT,并在COT内发送PSCCH/PSSCH给接收终端(Receive X UE,RX UE)。其中,SCI中携带PSFCH信道接入指示,为Cat 1 LBT、Cat 2(16us)LBT、Cat 2(25us)LBT或Cat 4 LBT接入。
RX UE接收PSCCH/PSSCH,并根据PSSCH/PSCCH与PSFCH之间的映射规则确定候选PSFCH的位置。
若TX UE指示PSFCH为Cat 2(25us)LBT的信道接入方式,则RX UE在PSFCH候选资源前进行LBT(根据PSFCH起始位置-CPE的长度-25us确定检测的起始位置,这个为RX UE实现)。
若成功,则在对应的PSFCH资源上,采用预定义的PSFCH格式(format)或PSFCH结构(structure)进行传输;
若失败,则在下一个PSFCH候选资源前进行LBT。
实施例二:
方案1,TX UE initiated COT,在COT内发送PSCCH/PSSCH给RX UE。其中,SCI中携带PSFCH信道接入指示,为Cat 1 LBT、Cat 2(16us)LBT、Cat 2(25us)LBT或Cat 4 LBT接入;携带CPE指示信息。
RX UE接收PSCCH/PSSCH,并根据PSSCH/PSCCH与PSFCH之间的映射规则确定候选PSFCH的位置。
若TX UE指示PSFCH为Cat 2(25us)LBT的信道接入方式,则RX UE在第一个PSFCH候选资源前进行LBT(根据候选PSFCH资源位置,CPE指示,25us确定检测为位置)。
若成功,则在第一个候选PSFCH资源上,采用预定义的PSFCH format/structure进行传输;
若失败,则在下一个PSFCH候选资源前进行Cat 2(16us)LBT检测。其中,CAPC参数根据PSFCH对应的PSSCH的优先级确定。
方案2,预定义RX UE在前N-1个PSFCH候选资源采用Cat 2 LBT进行信道接入,在最后一个PSFCH候选资源采用Cat 1 LBT进行信道接入。
TX UE initiated COT,在COT内发送PSCCH/PSSCH给RX UE(i.e.,UE 2)。其中,SCI中携带PSFCH信道接入指示,为Cat 1 LBT、Cat 2(16us)LBT、Cat 2(25us)LBT或Cat 4 LBT接入;携带CPE指示信息。
RX UE接收PSCCH/PSSCH,并根据PSSCH/PSCCH与PSFCH之间的映射规则确定候选PSFCH的位置。PSFCH候选资源的数目为N。
判断PSFCH候选资源的数目N是否<=N_thresh(e.g.,N_thresh=1)
若否,则TX UE指示PSFCH为Cat 2(25us/16us)LBT的信道接入方式,则RX UE在PSFCH候选资源前进行LBT(根据候选PSFCH资源位置,CPE指示,25us/16us确定检测为位置)。
若成功,则在第一个候选PSFCH资源上,采用预定义的PSFCH format/structure进行传输;
若失败,则在下一个PSFCH候选资源前进行Cat 2(25us/16us)LBT检测。其中,CAPC参数根据PSFCH对应的PSSCH的优先级确定。
若是,则采用Cat 1 LBT进行信道接入。
实施例三:TX UE initiated COT,在COT内发送PSCCH/PSSCH给RX UE。其中,SCI中携带PSFCH信道接入指示,为Cat 1 LBT、Cat 2(16us)LBT、Cat 2(25us)LBT或Cat 4 LBT接入。SCI中携带PSFCH候选资源指示。
RX UE接收PSCCH/PSSCH,并根据SCI中指示确定PSFCH候选资源位置。
若TX UE指示PSFCH为Cat 2(25us)LBT的信道接入方式,则RX UE在PSFCH候选资源前进行LBT。
若成功,则在对应的PSFCH资源上,采用预定义的PSFCH format/structure进行传输;
若失败,则在下一个PSFCH候选资源前进行LBT。
请参见图3,图3是本申请实施例提供的一种旁链路反馈信息的信道接入处理方法的流程图,如图3所示,包括以下步骤:
步骤301,通信设备向第一终端发送目标指示信息,所述目标指示信息用于供所述第一终端确定执行第一反馈信息的信道接入流程的目标接入方式;
其中,所述通信设备为调度终端、所述第一反馈信息的接收端或者网络侧设备。
可选地,所述目标指示信息用于指示以下至少一项:
N个接入方式;
接入方式与第一对象的第一关联关系,所述第一对象包括物理旁链路反馈信道PSFCH的资源、格式和序列中的至少一项;
接入方式与第二对象的第二关联关系,所述第二对象包括反馈信息、复用的物理旁链路共享信道PSSCH携带的内容和子载波间隔SCS中的至少一项;
接入方式与第三对象的第三关联关系,所述第三对象包括反馈信息的服务质量、反馈信息的优先级、反馈信息对应的PSSCH的服务质量、反馈信息对应的PSSCH的优先级、反馈信息的候选资源数量、反馈信息的剩余候选资源数量和反馈信息的候选资源的资源编号中的至少一项;
第二反馈信息的信道接入方式。
可选地,在基于所述第一关联关系确定所述目标接入方式的情况下,所述目标接入方式满足以下至少一项:
在所述第一反馈信息为第一格式或第一序列或第一符号数目的情况下,所述目标接入方式为第一类型LBT的接入方式;
在所述第一反馈信息为第二格式或第二序列或第二符号数目的情况下,所述目标接入方式为第二类型LBT的接入方式。
在基于所述第二关联关系确定所述目标接入方式的情况下,所述目标接入方式与PSSCH中数据传输类型或目标标识关联。
可选地,所在基于所述第二关联关系确定所述目标接入方式的情况下,所述目标接入方式与PSSCH中数据传输类型或目标标识关联。
可选地,所述目标接入方式满足以下至少一项:
在所述数据传输类型为广播数据类型或所述目标标识为广播标识的情况下,所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式;
在所述数据传输类型为组播数据类型或所述目标标识为组播标识的情况下,所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式;
在所述数据传输类型为单播数据类型或所述目标标识为单播标识的情况下,所述目标接入方式为第二类型LBT的接入方式或第三类型LBT的接入方式。
可选地,所述目标接入方式与反馈信息的第一对象关联,所述目标接入方式满足以下至少一项:
在所述第一反馈信息仅承载于PSFCH的情况下,所述目标接入方式为第一类型LBT或第二类型LBT的接入方式;
所述目标接入方式与PSSCH中数据传输类型或数据传输目标标识关联;
在所述第一反馈信息携带旁链路调度请求的情况下,所述目标接入方式为第一类型LBT或第二类型LBT的接入方式;
在所述第一反馈信息携带旁链路参考信号的情况下,所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式。
可选地,在所述目标接入方式基于第二反馈信息的信道接入方式确定的情况下,所述目标接入方式为以下至少之一:
M个接入方式中最快或最慢的信道接入方式;
所述第二反馈信息关联的M1个接入方式中最快或最慢的信道接入方式;
第m个第二反馈信息的信道接入方式,其中,m为预设的值;
与第一反馈信息频域资源相邻或者间隔最近的第二反馈信息的信道接入方式;
其中,所述M个接入方式包括与所述M1个接入方式和与所述第一反馈信息关联的M2个接入方式,M1为小于或等于M的正整数,M1与M2的和值等于M。
可选地,所述第二反馈信息满足以下至少一项:
所述第二反馈信息的起始时刻与所述第一反馈信息的起始时刻相同;
所述第二反馈信息为待发送的反馈信息中除所述第一反馈信息之外的其他反馈信息。
可选地,所述第二反馈信息满足以下至少一项:
所述第二反馈信息的起始时刻与所述第一反馈信息的起始时刻相同;
所述第二反馈信息为待发送的反馈信息中除所述第一反馈信息之外的其他反馈信息。
可选地,所述信道接入流程的参数包括第一信道接入优先级CAPC,所述第一CAPC满足以下至少一项:
所述第一CAPC与旁链路信息服务质量具有映射关系;
所述第一CAPC根据所述第一反馈信息对应的PSSCH的第四对象确定;
所述第一CAPC根据所述第一反馈信息对应的PSCCH中指示的优先级确定;
所述第一CAPC与所述第一反馈信息对应的PSSCH的第二CAPC相同;
所述第一CAPC根据待传输数据的最低CAPC值确定;
在所述第一反馈信息对应L个CAPC,且所述第一反馈信息仅承载于PSFCH的情况下,所述第一CAPC根据预设规则确定,L为大于1的整数;
所述第一CAPC与候选资源数量或剩余候选资源数量关联;
所述第一CAPC为协议约定、预配置或配置的PSFCH的CAPC;
其中,所述第四对象包括优先级和逻辑信道优先级。
可选地,所述预设规则包括以下任一项:
所述第一CAPC为所述L个CAPC中的最低CAPC;
所述第一CAPC根据第二终端关联的第一PSSCH对应的优先级或者CAPC确定;
所述第一CAPC根据第二终端关联的第二PSSCH对应的优先级或者CAPC确定;
其中,所述第一PSSCH与所述PSFCH关联,所述第二PSSCH为第二终端的第一COT内的PSSCH,且所述PSFCH的时域位置位于所述第一COT 内。
可选地,在所述第一CAPC与候选资源数量或剩余候选资源数量关联的情况下,所述第一CAPC满足以下任一项:
在所述候选资源数量大于或等于第三预设值的情况下,所述第一CAPC的CAPC值为第一阈值;在所述候选资源数量小于第三预设值的情况下,所述第一CAPC的CAPC值为第二阈值;
在所述剩余候选资源数量大于或等于第四预设值的情况下,所述第一CAPC的CAPC值为第一阈值;在所述剩余候选资源数量小于第四预设值的情况下,所述第一CAPC的CAPC值为第二阈值。
需要说明的是,本实施例作为图2所示的实施例对应的通信设备的实施方式,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。
需要说明的是,本申请实施例提供的旁链路反馈信息的信道接入方法,执行主体可以为旁链路反馈信息的信道接入装置,或者,该旁链路反馈信息的信道接入装置中的用于执行旁链路反馈信息的信道接入方法的控制模块。本申请实施例中以旁链路反馈信息的信道接入装置执行旁链路反馈信息的信道接入方法为例,说明本申请实施例提供的旁链路反馈信息的信道接入装置。
请参见图4,图4是本申请实施例提供的一种旁链路反馈信息的信道接入装置的结构图,如图4所示,旁链路反馈信息的信道接入装置400包括:
确定模块401,用于确定目标接入方式;
执行模块402,用于按照所述目标接入方式执行第一反馈信息的信道接入流程。
可选地,所述目标接入方式基于以下至少一项确定;
N个接入方式,N为正整数,所述N个接入方式由以下至少一项确定:协议约定、网络侧设备配置、网络侧设备预配置、网络侧设备指示、终端配置和终端指示;
接入方式与第一对象的第一关联关系,所述第一对象包括物理旁链路反馈信道PSFCH的资源、格式和序列中的至少一项;
接入方式与第二对象的第二关联关系,所述第二对象包括反馈信息、复 用的物理旁链路共享信道PSSCH携带的内容和子载波间隔SCS中的至少一项;
接入方式与第三对象的第三关联关系,所述第三对象包括反馈信息的服务质量、反馈信息的优先级、反馈信息对应的PSSCH的服务质量、反馈信息对应的PSSCH的优先级、反馈信息的候选资源数量、反馈信息的剩余候选资源数量和反馈信息的候选资源的资源编号中的至少一项;
第二反馈信息的信道接入方式。
可选地,所述N个接入方式满足以下至少一项:
在所述第一反馈信息位于第二终端的信道占用时间COT范围内的情况下,所述N个接入方式包括默认的第一接入方式;
所述N个接入方式包括网络侧设备通过下行控制信息指示的第二接入方式;
所述N个接入方式包括所述第二终端指示的第三接入方式。
可选地,在N大于1,且N个接入方式包括N1个所述第二接入方式和N2个所述第三接入方式的情况下,所述目标接入方式为以下任一项接入方式:
所述N个接入方式、N1个第二接入方式或者所述N2个第三接入方式中,最近一次指示的接入方式;
所述N个接入方式、所述N1个第二接入方式或者N2个第三接入方式中的预设接入方式,所述预设接入方式由网络侧设备或第二终端指示;
所述N个接入方式中对应的先听后说LBT时间最长或最短的接入方式;
其中,N1和N2均为自然数,且N1与N2的和值为N。
可选地,所述第二终端的COT由所述第二终端或网络侧设备指示。
可选地,在基于所述第一关联关系确定所述目标接入方式的情况下,所述目标接入方式满足以下至少一项:
在所述第一反馈信息为第一格式或第一序列或第一符号数目的情况下,所述目标接入方式为第一类型LBT的接入方式;
在所述第一反馈信息为第二格式或第二序列或第二符号数目的情况下,所述目标接入方式为第二类型LBT的接入方式。
可选地,所述目标接入方式与反馈信息的第一对象关联,所述目标接入 方式满足以下至少一项:
在所述第一反馈信息仅承载于PSFCH的情况下,所述目标接入方式为第一类型LBT或第二类型LBT的接入方式;
所述目标接入方式与PSSCH中数据传输类型或数据传输目标标识关联;
在所述第一反馈信息携带旁链路调度请求的情况下,所述目标接入方式为第一类型LBT或第二类型LBT的接入方式;
在所述第一反馈信息携带旁链路参考信号的情况下,所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式。
可选地,在基于所述第二关联关系确定所述目标接入方式的情况下,所述目标接入方式与PSSCH中数据传输类型或目标标识关联。
可选地,所述目标接入方式满足以下至少一项:
在所述数据传输类型为广播数据类型或所述目标标识为广播标识的情况下,所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式;
在所述数据传输类型为组播数据类型或所述目标标识为组播标识的情况下,所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式;
在所述数据传输类型为单播数据类型或所述目标标识为单播标识的情况下,所述目标接入方式为第二类型LBT的接入方式或第三类型LBT的接入方式。
可选地,在基于所述第二关联关系确定所述目标接入方式,且所述目标接入方式与反馈信息的候选资源数量、反馈信息的剩余资源数量和反馈信息的候选资源的资源编号中的至少一项关联的情况下,所述目标接入方式满足以下至少一项:
检测第A个候选资源,采用第一检测时长的第二类型LBT的接入方式,A为第一预设值;
在剩余候选资源的数量小于或等于第二预设值的情况下,采用第二类型LBT的接入方式或者第一类型LBT的接入方式;
在检测所述第A个候选资源时,当采用第一检测时长的第二类型LBT的 接入方式失败时,则在检测第A+n个候选资源时,采用第二检测时长的第二类型LBT的接入方式或者第三类型LBT的接入方式,n为正整数;
在检测前A个候选资源时,当采用第一检测时长的第二类型LBT的接入方式失败时,则在检测第A+n个候选资源时,采用第二检测时长的第二类型LBT的接入方式或者第三类型LBT的接入方式,n为正整数。
可选地,在所述目标接入方式基于第二反馈信息的信道接入方式确定的情况下,所述目标接入方式为以下至少之一:
M个接入方式中最快或最慢的信道接入方式;
所述第二反馈信息关联的M1个接入方式中最快或最慢的信道接入方式;
第m个第二反馈信息的信道接入方式,其中,m为预设的值;
与第一反馈信息频域资源相邻或者间隔最近的第二反馈信息的信道接入方式;
其中,所述M个接入方式包括与所述M1个接入方式和与所述第一反馈信息关联的M2个接入方式,M1为小于或等于M的正整数,M1与M2的和值等于M。
可选地,所述第二反馈信息满足以下至少一项:
所述第二反馈信息的起始时刻与所述第一反馈信息的起始时刻相同;
所述第二反馈信息为待发送的反馈信息中除所述第一反馈信息之外的其他反馈信息。
可选地,所述确定模块401还用于根据接入方式与反馈信息的第一映射关系,确定所述第一反馈信息的格式、资源映射方式和资源选择方式中的至少一项。
可选地,所述第一映射关系满足以下至少一项:
在所述目标接入方式为第二类型LBT的接入方式或第三类型LBT的接入方式的情况下,所述第一反馈信息的格式为第一格式;
在所述目标接入方式为第二类型LBT的接入方式或第三类型LBT的接入方式的情况下,所述第一反馈信息的资源映射方式为第一资源映射方式;
在所述目标接入方式为第二类型LBT的接入方式或第三类型LBT的接入方式的情况下,所述第一反馈信息的资源选择方式为第一资源选择方式;
在所述目标接入方式为第一类型LBT的接入方式的情况下,所述第一反馈信息的格式为第二格式;
在所述目标接入方式为第一类型LBT的接入方式的情况下,所述第一反馈信息的资源映射方式为第二资源映射方式;
在所述目标接入方式为第一类型LBT的接入方式的情况下,所述第一反馈信息的资源选择方式为第二资源选择方式。
可选地,在所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式的情况下,所述信道接入流程包括:所述第一终端根据配置或指示的CPE信息进行传输。
可选地,所述CPE信息的指示信息携带在目标指示信令中,所述目标指示信令为下行控制信息DCI信令或旁链路控制信息SCI信令。
可选地,所述CPE信息指示CPE的传输位置位于所述第一反馈信息的起始时刻之前或之后。
可选地,所述信道接入流程的参数包括第一信道接入优先级CAPC,所述第一CAPC满足以下至少一项:
所述第一CAPC与旁链路信息服务质量具有映射关系;
所述第一CAPC根据所述第一反馈信息对应的PSSCH的第四对象确定;
所述第一CAPC根据所述第一反馈信息对应的PSCCH中指示的优先级确定;
所述第一CAPC与所述第一反馈信息对应的PSSCH的第二CAPC相同;
所述第一CAPC根据待传输数据的最低CAPC值确定;
在所述第一反馈信息对应L个CAPC,且所述第一反馈信息仅承载于PSFCH的情况下,所述第一CAPC根据预设规则确定,L为大于1的整数;
所述第一CAPC与候选资源数量或剩余候选资源数量关联;
所述第一CAPC为协议约定、预配置或配置的PSFCH的CAPC;
其中,所述第四对象包括优先级和逻辑信道优先级。
可选地,所述预设规则包括以下任一项:
所述第一CAPC为所述L个CAPC中的最低CAPC;
所述第一CAPC根据第二终端关联的第一PSSCH对应的优先级或者 CAPC确定;
所述第一CAPC根据第二终端关联的第二PSSCH对应的优先级或者CAPC确定;
其中,所述第一PSSCH与所述PSFCH关联,所述第二PSSCH为第二终端的第一COT内的PSSCH,且所述PSFCH的时域位置位于所述第一COT内。
可选地,在所述第一CAPC与候选资源数量或剩余候选资源数量关联的情况下,所述第一CAPC满足以下任一项:
在所述候选资源数量大于或等于第三预设值的情况下,所述第一CAPC的CAPC值为第一阈值;在所述候选资源数量小于第三预设值的情况下,所述第一CAPC的CAPC值为第二阈值;
在所述剩余候选资源数量大于或等于第四预设值的情况下,所述第一CAPC的CAPC值为第一阈值;在所述剩余候选资源数量小于第四预设值的情况下,所述第一CAPC的CAPC值为第二阈值。
本申请实施例提供的旁链路反馈信息的信道接入装置能够实现图2的方法实施例中各个过程,为避免重复,这里不再赘述。
需要说明的是,本申请实施例提供的旁链路反馈信息的信道接入处理方法,执行主体可以为旁链路反馈信息的信道接入处理装置,或者,该旁链路反馈信息的信道接入处理装置中的用于执行旁链路反馈信息的信道接入处理方法的控制模块。本申请实施例中以旁链路反馈信息的信道接入处理装置执行旁链路反馈信息的信道接入处理方法为例,说明本申请实施例提供的旁链路反馈信息的信道接入处理装置。
请参见图5,图5是本申请实施例提供的一种旁链路反馈信息的信道接入处理装置的结构图,如图5所示,旁链路反馈信息的信道接入处理装置500包括:
发送模块501,用于向第一终端发送目标指示信息,所述目标指示信息用于供所述第一终端确定执行第一反馈信息的信道接入流程的目标接入方式。
可选地,所述目标指示信息用于指示以下至少一项:
N个接入方式;
接入方式与第一对象的第一关联关系,所述第一对象包括物理旁链路反馈信道PSFCH的资源、格式和序列中的至少一项;
接入方式与第二对象的第二关联关系,所述第二对象包括反馈信息、复用的物理旁链路共享信道PSSCH携带的内容和子载波间隔SCS中的至少一项;
接入方式与第三对象的第三关联关系,所述第三对象包括反馈信息的服务质量、反馈信息的优先级、反馈信息对应的PSSCH的服务质量、反馈信息对应的PSSCH的优先级、反馈信息的候选资源数量、反馈信息的剩余候选资源数量和反馈信息的候选资源的资源编号中的至少一项;
第二反馈信息的信道接入方式。
可选地,在基于所述第一关联关系确定所述目标接入方式的情况下,所述目标接入方式满足以下至少一项:
在所述第一反馈信息为第一格式或第一序列或第一符号数目的情况下,所述目标接入方式为第一类型LBT的接入方式;
在所述第一反馈信息为第二格式或第二序列或第二符号数目的情况下,所述目标接入方式为第二类型LBT的接入方式。
在基于所述第二关联关系确定所述目标接入方式的情况下,所述目标接入方式与PSSCH中数据传输类型或目标标识关联。
可选地,所在基于所述第二关联关系确定所述目标接入方式的情况下,所述目标接入方式与PSSCH中数据传输类型或目标标识关联。
可选地,所述目标接入方式满足以下至少一项:
在所述数据传输类型为广播数据类型或所述目标标识为广播标识的情况下,所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式;
在所述数据传输类型为组播数据类型或所述目标标识为组播标识的情况下,所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式;
在所述数据传输类型为单播数据类型或所述目标标识为单播标识的情况下,所述目标接入方式为第二类型LBT的接入方式或第三类型LBT的接入 方式。
可选地,所述目标接入方式与反馈信息的第一对象关联,所述目标接入方式满足以下至少一项:
在所述第一反馈信息仅承载于PSFCH的情况下,所述目标接入方式为第一类型LBT或第二类型LBT的接入方式;
所述目标接入方式与PSSCH中数据传输类型或数据传输目标标识关联;
在所述第一反馈信息携带旁链路调度请求的情况下,所述目标接入方式为第一类型LBT或第二类型LBT的接入方式;
在所述第一反馈信息携带旁链路参考信号的情况下,所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式。
可选地,在所述目标接入方式基于第二反馈信息的信道接入方式确定的情况下,所述目标接入方式为以下至少之一:
M个接入方式中最快或最慢的信道接入方式;
所述第二反馈信息关联的M1个接入方式中最快或最慢的信道接入方式;
第m个第二反馈信息的信道接入方式,其中,m为预设的值;
与第一反馈信息频域资源相邻或者间隔最近的第二反馈信息的信道接入方式;
其中,所述M个接入方式包括与所述M1个接入方式和与所述第一反馈信息关联的M2个接入方式,M1为小于或等于M的正整数,M1与M2的和值等于M。
可选地,所述第二反馈信息满足以下至少一项:
所述第二反馈信息的起始时刻与所述第一反馈信息的起始时刻相同;
所述第二反馈信息为待发送的反馈信息中除所述第一反馈信息之外的其他反馈信息。
可选地,所述第二反馈信息满足以下至少一项:
所述第二反馈信息的起始时刻与所述第一反馈信息的起始时刻相同;
所述第二反馈信息为待发送的反馈信息中除所述第一反馈信息之外的其他反馈信息。
可选地,所述信道接入流程的参数包括第一信道接入优先级CAPC,所 述第一CAPC满足以下至少一项:
所述第一CAPC与旁链路信息服务质量具有映射关系;
所述第一CAPC根据所述第一反馈信息对应的PSSCH的第四对象确定;
所述第一CAPC根据所述第一反馈信息对应的PSCCH中指示的优先级确定;
所述第一CAPC与所述第一反馈信息对应的PSSCH的第二CAPC相同;
所述第一CAPC根据待传输数据的最低CAPC值确定;
在所述第一反馈信息对应L个CAPC,且所述第一反馈信息仅承载于PSFCH的情况下,所述第一CAPC根据预设规则确定,L为大于1的整数;
所述第一CAPC与候选资源数量或剩余候选资源数量关联;
所述第一CAPC为协议约定、预配置或配置的PSFCH的CAPC;
其中,所述第四对象包括优先级和逻辑信道优先级。
可选地,所述预设规则包括以下任一项:
所述第一CAPC为所述L个CAPC中的最低CAPC;
所述第一CAPC根据第二终端关联的第一PSSCH对应的优先级或者CAPC确定;
所述第一CAPC根据第二终端关联的第二PSSCH对应的优先级或者CAPC确定;
其中,所述第一PSSCH与所述PSFCH关联,所述第二PSSCH为第二终端的第一COT内的PSSCH,且所述PSFCH的时域位置位于所述第一COT内。
可选地,在所述第一CAPC与候选资源数量或剩余候选资源数量关联的情况下,所述第一CAPC满足以下任一项:
在所述候选资源数量大于或等于第三预设值的情况下,所述第一CAPC的CAPC值为第一阈值;在所述候选资源数量小于第三预设值的情况下,所述第一CAPC的CAPC值为第二阈值;
在所述剩余候选资源数量大于或等于第四预设值的情况下,所述第一CAPC的CAPC值为第一阈值;在所述剩余候选资源数量小于第四预设值的情况下,所述第一CAPC的CAPC值为第二阈值。
本申请实施例提供的旁链路反馈信息的信道接入处理装置能够实现图3的方法实施例中各个过程,为避免重复,这里不再赘述。
本申请实施例中的旁链路反馈信息的信道接入装置或旁链路反馈信息的信道接入处理装置可以是装置,具有操作系统的装置或电子设备,也可以是终端中的部件、集成电路、或芯片。该装置可以是移动终端,也可以为非移动终端。示例性的,移动终端可以包括但不限于上述所列举的终端11的类型,非移动终端可以为服务器、网络附属存储器(Network Attached Storage,NAS)、个人计算机(Personal Vomputer,PC)、电视机(television,TV)、柜员机或者自助机等,本申请实施例不作具体限定。
本申请实施例提供的旁链路反馈信息的信道接入装置或旁链路反馈信息的信道接入处理装置能够实现图2至图3的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
可选的,如图6所示,本申请实施例还提供一种通信设备600,包括处理器601,存储器602,存储在存储器602上并可在所述处理器601上运行的程序或指令,该程序或指令被处理器601执行时实现上述旁链路反馈信息的信道接入方法或旁链路反馈信息的信道接入处理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。
本申请实施例还提供一种终端,包括处理器和通信接口,处理器用于确定目标接入方式;按照所述目标接入方式执行第一反馈信息的信道接入流程。或者,通信接口用于向第一终端发送目标指示信息,所述目标指示信息用于供所述第一终端确定执行第一反馈信息的信道接入流程的目标接入方式。该终端实施例是与上述终端侧方法实施例对应的,上述方法实施例的各个实施过程和实现方式均可适用于该终端实施例中,且能达到相同的技术效果。具体地,图7为实现本申请各个实施例的一种终端的硬件结构示意图。
该终端700包括但不限于:射频单元701、网络模块702、音频输出单元703、输入单元704、传感器705、显示单元706、用户输入单元707、接口单元708、存储器709以及处理器710等中的至少部分部件。
本领域技术人员可以理解,终端700还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器710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。图7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,在此不再赘述。
应理解的是,本申请实施例中,输入单元704可以包括图形处理器(Graphics Processing Unit,GPU)和麦克风,图形处理器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。显示单元706可包括显示面板,可以采用液晶显示器、有机发光二极管等形式来配置显示面板。用户输入单元707包括触控面板以及其他输入设备。触控面板,也称为触摸屏。触控面板可包括触摸检测装置和触摸控制器两个部分。其他输入设备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。
本申请实施例中,射频单元701将来自网络侧设备的下行数据接收后,给处理器710处理;另外,将上行的数据发送给网络侧设备。通常,射频单元701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。
存储器709可用于存储软件程序或指令以及各种数据。存储器709可主要包括存储程序或指令区和存储数据区,其中,存储程序或指令区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器709可以包括高速随机存取存储器,还可以包括非瞬态性存储器,其中,非瞬态性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。例如至少一个磁盘存储器件、闪存器件、或其他非瞬态性固态存储器件。
处理器710可包括一个或多个处理单元;可选的,处理器710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或指令等,调制解调处理器主要处理无线通信,如基带处理器。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710中。
其中,处理器710用于确定目标接入方式;按照所述目标接入方式执行 第一反馈信息的信道接入流程。
或者,射频单元701,用于向第一终端发送目标指示信息,所述目标指示信息用于供所述第一终端确定执行第一反馈信息的信道接入流程的目标接入方式。
本申请实施例中处理器710和射频单元701能够实现上述旁链路反馈信息的信道接入方法或旁链路反馈信息的信道接入处理方法中的各个步骤,且能达相同的效果,具体可以参照上述实施例的描述,在此不再赘述。
本申请实施例还提供一种网络侧设备,包括处理器和通信接口,通信接口用于向第一终端发送目标指示信息,所述目标指示信息用于供所述第一终端确定执行第一反馈信息的信道接入流程的目标接入方式。该网络侧设备实施例是与上述网络侧设备方法实施例对应的,上述方法实施例的各个实施过程和实现方式均可适用于该网络侧设备实施例中,且能达到相同的技术效果。
具体地,本申请实施例还提供了一种网络侧设备。如图8所示,该网络侧设备800包括:天线801、射频装置802、基带装置803。天线801与射频装置802连接。在上行方向上,射频装置802通过天线801接收信息,将接收的信息发送给基带装置803进行处理。在下行方向上,基带装置803对要发送的信息进行处理,并发送给射频装置802,射频装置802对收到的信息进行处理后经过天线801发送出去。
上述频带处理装置可以位于基带装置803中,以上实施例中网络侧设备执行的方法可以在基带装置803中实现,该基带装置803包括处理器804和存储器805。
基带装置803例如可以包括至少一个基带板,该基带板上设置有多个芯片,如图8所示,其中一个芯片例如为处理器804,与存储器805连接,以调用存储器805中的程序,执行以上方法实施例中所示的网络侧设备操作。
该基带装置803还可以包括网络接口806,用于与射频装置802交互信息,该接口例如为通用公共无线接口(Common Public Radio Interface,CPRI)。
具体地,本申请实施例的网络侧设备还包括:存储在存储器805上并可在处理器804上运行的指令或程序,处理器804调用存储器805中的指令或程序执行图3所示各模块执行的方法,并达到相同的技术效果,为避免重复, 故不在此赘述。
本申请实施例还提供一种可读存储介质,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述旁链路反馈信息的信道接入方法或旁链路反馈信息的信道接入处理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,所述处理器为上述实施例中所述的电子设备中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现上述旁链路反馈信息的信道接入方法或旁链路反馈信息的信道接入处理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。
应理解,本申请实施例提到的芯片还可以称为系统级芯片、系统芯片、芯片系统或片上系统芯片等。
本申请实施例另提供了一种程序产品,所述程序产品存储在非瞬态的存储介质中,所述程序产品被至少一个处理器执行以实现上述旁链路反馈信息的信道接入方法或旁链路反馈信息的信道接入处理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。
本申请实施例还提供了一种通信设备,被配置为执行如上述旁链路反馈信息的信道接入方法或旁链路反馈信息的信道接入处理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。
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。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还 可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
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,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机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)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请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申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。

Claims (40)

  1. 一种旁链路反馈信息的信道接入方法,包括:
    第一终端确定目标接入方式;
    所述第一终端按照所述目标接入方式执行第一反馈信息的信道接入流程。
  2. 根据权利要求1所述的方法,其中,所述目标接入方式基于以下至少一项确定;
    N个接入方式,N为正整数,所述N个接入方式由以下至少一项确定:协议约定、网络侧设备配置、网络侧设备预配置、网络侧设备指示、终端配置和终端指示;
    接入方式与第一对象的第一关联关系,所述第一对象包括物理旁链路反馈信道PSFCH的资源、格式和序列中的至少一项;
    接入方式与第二对象的第二关联关系,所述第二对象包括反馈信息、复用的物理旁链路共享信道PSSCH携带的内容和子载波间隔SCS中的至少一项;
    接入方式与第三对象的第三关联关系,所述第三对象包括反馈信息的服务质量、反馈信息的优先级、反馈信息对应的PSSCH的服务质量、反馈信息对应的PSSCH的优先级、反馈信息的候选资源数量、反馈信息的剩余候选资源数量和反馈信息的候选资源的资源编号中的至少一项;
    第二反馈信息的信道接入方式。
  3. 根据权利要求2所述的方法,其中,所述N个接入方式满足以下至少一项:
    在所述第一反馈信息位于第二终端的信道占用时间COT内的情况下,所述N个接入方式包括默认的第一接入方式;
    所述N个接入方式包括网络侧设备通过下行控制信息指示的第二接入方式;
    所述N个接入方式包括所述第二终端指示的第三接入方式。
  4. 根据权利要求3所述的方法,其中,在N大于1,且N个接入方式包括N1个所述第二接入方式和N2个所述第三接入方式的情况下,所述目标接 入方式为以下任一项接入方式:
    所述N个接入方式、N1个第二接入方式或者所述N2个第三接入方式中,最近一次指示的接入方式;
    所述N个接入方式、所述N1个第二接入方式或者N2个第三接入方式中的预设接入方式,所述预设接入方式由网络侧设备或第二终端指示;
    所述N个接入方式中对应的先听后说LBT时间最长或最短的接入方式;
    其中,N1和N2均为自然数,且N1与N2的和值为N。
  5. 根据权利要求3所述的方法,其中,所述第二终端的COT由所述第二终端或网络侧设备指示。
  6. 根据权利要求2所述的方法,其中,在基于所述第一关联关系确定所述目标接入方式的情况下,所述目标接入方式满足以下至少一项:
    在所述第一反馈信息为第一格式或第一序列或第一符号数目的情况下,所述目标接入方式为第一类型LBT的接入方式;
    在所述第一反馈信息为第二格式或第二序列或第二符号数目的情况下,所述目标接入方式为第二类型LBT的接入方式。
  7. 根据权利要求2所述的方法,其中,所述目标接入方式与反馈信息的第一对象关联,所述目标接入方式满足以下至少一项:
    在所述第一反馈信息仅承载于PSFCH的情况下,所述目标接入方式为第一类型LBT或第二类型LBT的接入方式;
    在所述第一反馈信息只包含HARQ信息的情况下,所述目标接入方式为第一类型LBT或第二类型LBT的接入方式;
    所述目标接入方式与PSSCH中数据传输类型或数据传输目标标识关联;
    在所述第一反馈信息携带旁链路调度请求的情况下,所述目标接入方式为第一类型LBT或第二类型LBT的接入方式;
    在所述第一反馈信息携带旁链路参考信号的情况下,所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式。
  8. 根据权利要求7所述的方法,其中,在基于所述第二关联关系确定所述目标接入方式的情况下,所述目标接入方式与PSSCH中数据传输类型或目标标识关联。
  9. 根据权利要求8所述的方法,其中,所述目标接入方式满足以下至少一项:
    在所述数据传输类型为广播数据类型或所述目标标识为广播标识的情况下,所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式;
    在所述数据传输类型为组播数据类型或所述目标标识为组播标识的情况下,所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式;
    在所述数据传输类型为单播数据类型或所述目标标识为单播标识的情况下,所述目标接入方式为第二类型LBT的接入方式或第三类型LBT的接入方式。
  10. 根据权利要求2所述的方法,其中,在基于所述第二关联关系确定所述目标接入方式,且所述目标接入方式与反馈信息的候选资源数量、反馈信息的剩余资源数量和反馈信息的候选资源的资源编号中的至少一项关联的情况下,所述目标接入方式满足以下至少一项:
    检测第A个候选资源,采用第一检测时长的第二类型LBT的接入方式,A为第一预设值;
    在剩余候选资源的数量小于或等于第二预设值的情况下,采用第二类型LBT的接入方式或者第一类型LBT的接入方式;
    在检测所述第A个候选资源时,当采用第一检测时长的第二类型LBT的接入方式失败时,则在检测第A+n个候选资源时,采用第二检测时长的第二类型LBT的接入方式或者第三类型LBT的接入方式,n为正整数;
    在检测前A个候选资源时,当采用第一检测时长的第二类型LBT的接入方式失败时,则在检测第A+n个候选资源时,采用第二检测时长的第二类型LBT的接入方式或者第三类型LBT的接入方式,n为正整数。
  11. 根据权利要求2所述的方法,其中,在所述目标接入方式基于第二反馈信息的信道接入方式确定的情况下,所述目标接入方式为以下至少之一:
    M个接入方式中最快或最慢的信道接入方式;
    所述第二反馈信息关联的M1个接入方式中最快或最慢的信道接入方式;
    第m个第二反馈信息的信道接入方式,其中,m为预设的值;
    与第一反馈信息频域资源相邻或者间隔最近的第二反馈信息的信道接入方式;
    其中,所述M个接入方式包括与所述M1个接入方式和与所述第一反馈信息关联的M2个接入方式,M1为小于或等于M的正整数,M1与M2的和值等于M。
  12. 根据权利要求2或11所述的方法,其中,所述第二反馈信息满足以下至少一项:
    所述第二反馈信息的起始时刻与所述第一反馈信息的起始时刻相同;
    所述第二反馈信息为待发送的反馈信息中除所述第一反馈信息之外的其他反馈信息。
  13. 根据权利要求1所述的方法,其中,所述方法还包括:
    所述第一终端根据接入方式与反馈信息的第一映射关系,确定所述第一反馈信息的格式、资源映射方式和资源选择方式中的至少一项。
  14. 根据权利要求13所述的方法,其中,所述第一映射关系满足以下至少一项:
    在所述目标接入方式为第二类型LBT的接入方式或第三类型LBT的接入方式的情况下,所述第一反馈信息的格式为第一格式;
    在所述目标接入方式为第二类型LBT的接入方式或第三类型LBT的接入方式的情况下,所述第一反馈信息的资源映射方式为第一资源映射方式;
    在所述目标接入方式为第二类型LBT的接入方式或第三类型LBT的接入方式的情况下,所述第一反馈信息的资源选择方式为第一资源选择方式;
    在所述目标接入方式为第一类型LBT的接入方式的情况下,所述第一反馈信息的格式为第二格式;
    在所述目标接入方式为第一类型LBT的接入方式的情况下,所述第一反馈信息的资源映射方式为第二资源映射方式;
    在所述目标接入方式为第一类型LBT的接入方式的情况下,所述第一反馈信息的资源选择方式为第二资源选择方式。
  15. 根据权利要求1所述的方法,其中,在所述目标接入方式为第一类型 LBT的接入方式或第二类型LBT的接入方式的情况下,所述信道接入流程包括:所述第一终端根据配置或指示的循环前缀扩展CPE信息进行传输。
  16. 根据权利要求15所述的方法,其中,所述CPE信息的指示信息携带在目标指示信令中,所述目标指示信令为下行控制信息DCI信令或旁链路控制信息SCI信令。
  17. 根据权利要求15所述的方法,其中,所述CPE信息指示CPE的传输位置位于所述第一反馈信息的起始时刻之前或之后。
  18. 根据权利要求1所述的方法,其中,所述信道接入流程的参数包括第一信道接入优先级CAPC,所述第一CAPC满足以下至少一项:
    所述第一CAPC与旁链路信息服务质量具有映射关系;
    所述第一CAPC根据所述第一反馈信息对应的PSSCH的第四对象确定;
    所述第一CAPC根据所述第一反馈信息对应的PSCCH中指示的优先级确定;
    所述第一CAPC与所述第一反馈信息对应的PSSCH的第二CAPC相同;
    所述第一CAPC根据待传输数据的最低CAPC值确定;
    在所述第一反馈信息对应L个CAPC,且所述第一反馈信息仅承载于PSFCH的情况下,所述第一CAPC根据预设规则确定,L为大于1的整数;
    所述第一CAPC与候选资源数量或剩余候选资源数量关联;
    所述第一CAPC为协议约定、预配置或配置的PSFCH的CAPC;
    其中,所述第四对象包括优先级和逻辑信道优先级。
  19. 根据权利要求18所述的方法,其中,所述预设规则包括以下任一项:
    所述第一CAPC为所述L个CAPC中的最低CAPC;
    所述第一CAPC根据第二终端关联的第一PSSCH对应的优先级或者CAPC确定;
    所述第一CAPC根据第二终端关联的第二PSSCH对应的优先级或者CAPC确定;
    其中,所述第一PSSCH与所述PSFCH关联,所述第二PSSCH为第二终端的第一COT内的PSSCH,且所述PSFCH的时域位置位于所述第一COT内。
  20. 根据权利要求18所述的方法,其中,在所述第一CAPC与候选资源数量或剩余候选资源数量关联的情况下,所述第一CAPC满足以下任一项:
    在所述候选资源数量大于或等于第三预设值的情况下,所述第一CAPC的CAPC值为第一阈值;在所述候选资源数量小于第三预设值的情况下,所述第一CAPC的CAPC值为第二阈值;
    在所述剩余候选资源数量大于或等于第四预设值的情况下,所述第一CAPC的CAPC值为第一阈值;在所述剩余候选资源数量小于第四预设值的情况下,所述第一CAPC的CAPC值为第二阈值。
  21. 一种旁链路反馈信息的信道接入处理方法,包括:
    通信设备向第一终端发送目标指示信息,所述目标指示信息用于供所述第一终端确定执行第一反馈信息的信道接入流程的目标接入方式;
    其中,所述通信设备为调度终端、所述第一反馈信息的接收端或者网络侧设备。
  22. 根据权利要求21所述的方法,其中,所述目标指示信息用于指示以下至少一项:
    N个接入方式;
    接入方式与第一对象的第一关联关系,所述第一对象包括物理旁链路反馈信道PSFCH的资源、格式和序列中的至少一项;
    接入方式与第二对象的第二关联关系,所述第二对象包括反馈信息、复用的物理旁链路共享信道PSSCH携带的内容和子载波间隔SCS中的至少一项;
    接入方式与第三对象的第三关联关系,所述第三对象包括反馈信息的服务质量、反馈信息的优先级、反馈信息对应的PSSCH的服务质量、反馈信息对应的PSSCH的优先级、反馈信息的候选资源数量、反馈信息的剩余候选资源数量和反馈信息的候选资源的资源编号中的至少一项;
    第二反馈信息的信道接入方式。
  23. 根据权利要求22所述的方法,其中,在基于所述第一关联关系确定所述目标接入方式的情况下,所述目标接入方式满足以下至少一项:
    在所述第一反馈信息为第一格式或第一序列或第一符号数目的情况下, 所述目标接入方式为第一类型LBT的接入方式;
    在所述第一反馈信息为第二格式或第二序列或第二符号数目的情况下,所述目标接入方式为第二类型LBT的接入方式。
  24. 根据权利要求22所述的方法,其中,所述目标接入方式与反馈信息的第一对象关联,所述目标接入方式满足以下至少一项:
    在所述第一反馈信息仅承载于PSFCH的情况下,所述目标接入方式为第一类型LBT或第二类型LBT的接入方式;
    所述目标接入方式与PSSCH中数据传输类型或数据传输目标标识关联;
    在所述第一反馈信息携带旁链路调度请求的情况下,所述目标接入方式为第一类型LBT或第二类型LBT的接入方式;
    在所述第一反馈信息携带旁链路参考信号的情况下,所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式。
  25. 根据权利要求22所述的方法,其中,在所述目标接入方式基于第二反馈信息的信道接入方式确定的情况下,所述目标接入方式为以下至少之一:
    M个接入方式中最快或最慢的信道接入方式;
    所述第二反馈信息关联的M1个接入方式中最快或最慢的信道接入方式;
    第m个第二反馈信息的信道接入方式,其中,m为预设的值;
    与第一反馈信息频域资源相邻或者间隔最近的第二反馈信息的信道接入方式;
    其中,所述M个接入方式包括与所述M1个接入方式和与所述第一反馈信息关联的M2个接入方式,M1为小于或等于M的正整数,M1与M2的和值等于M。
  26. 根据权利要求22或25所述的方法,其中,所述第二反馈信息满足以下至少一项:
    所述第二反馈信息的起始时刻与所述第一反馈信息的起始时刻相同;
    所述第二反馈信息为待发送的反馈信息中除所述第一反馈信息之外的其他反馈信息。
  27. 一种旁链路反馈信息的信道接入装置,包括:
    确定模块,用于确定目标接入方式;
    执行模块,用于按照所述目标接入方式执行第一反馈信息的信道接入流程。
  28. 根据权利要求27所述的装置,其中,所述目标接入方式基于以下至少一项确定;
    N个接入方式,N为正整数,所述N个接入方式由以下至少一项确定:协议约定、网络侧设备配置、网络侧设备预配置、网络侧设备指示、终端配置和终端指示;
    接入方式与第一对象的第一关联关系,所述第一对象包括物理旁链路反馈信道PSFCH的资源、格式和序列中的至少一项;
    接入方式与第二对象的第二关联关系,所述第二对象包括反馈信息、复用的物理旁链路共享信道PSSCH携带的内容和子载波间隔SCS中的至少一项;
    接入方式与第三对象的第三关联关系,所述第三对象包括反馈信息的服务质量、反馈信息的优先级、反馈信息对应的PSSCH的服务质量、反馈信息对应的PSSCH的优先级、反馈信息的候选资源数量、反馈信息的剩余候选资源数量和反馈信息的候选资源的资源编号中的至少一项;
    第二反馈信息的信道接入方式。
  29. 根据权利要求28所述的装置,其中,所述N个接入方式满足以下至少一项:
    在所述第一反馈信息位于第二终端的信道占用时间COT范围内的情况下,所述N个接入方式包括默认的第一接入方式;
    所述N个接入方式包括网络侧设备通过下行控制信息指示的第二接入方式;
    所述N个接入方式包括所述第二终端指示的第三接入方式。
  30. 根据权利要求29所述的装置,其中,在N大于1,且N个接入方式包括N1个所述第二接入方式和N2个所述第三接入方式的情况下,所述目标接入方式为以下任一项接入方式:
    所述N个接入方式、N1个第二接入方式或者所述N2个第三接入方式中,最近一次指示的接入方式;
    所述N个接入方式、所述N1个第二接入方式或者N2个第三接入方式中的预设接入方式,所述预设接入方式由网络侧设备或第二终端指示;
    所述N个接入方式中对应的先听后说LBT时间最长或最短的接入方式;
    其中,N1和N2均为自然数,且N1与N2的和值为N。
  31. 根据权利要求28所述的装置,其中,在基于所述第一关联关系确定所述目标接入方式的情况下,所述目标接入方式满足以下至少一项:
    在所述第一反馈信息为第一格式或第一序列或第一符号数目的情况下,所述目标接入方式为第一类型LBT的接入方式;
    在所述第一反馈信息为第二格式或第二序列或第二符号数目的情况下,所述目标接入方式为第二类型LBT的接入方式。
  32. 根据权利要求28所述的装置,其中,所述目标接入方式与反馈信息的第一对象关联,所述目标接入方式满足以下至少一项:
    在所述第一反馈信息仅承载于PSFCH的情况下,所述目标接入方式为第一类型LBT或第二类型LBT的接入方式;
    所述目标接入方式与PSSCH中数据传输类型或数据传输目标标识关联;
    在所述第一反馈信息携带旁链路调度请求的情况下,所述目标接入方式为第一类型LBT或第二类型LBT的接入方式;
    在所述第一反馈信息携带旁链路参考信号的情况下,所述目标接入方式为第一类型LBT的接入方式或第二类型LBT的接入方式。
  33. 一种旁链路反馈信息的信道接入处理装置,包括:
    发送模块,用于向第一终端发送目标指示信息,所述目标指示信息用于供所述第一终端确定执行第一反馈信息的信道接入流程的目标接入方式。
  34. 根据权利要求33所述的装置,其中,所述目标指示信息用于指示以下至少一项:
    N个接入方式;
    接入方式与第一对象的第一关联关系,所述第一对象包括物理旁链路反馈信道PSFCH的资源、格式和序列中的至少一项;
    接入方式与第二对象的第二关联关系,所述第二对象包括反馈信息、复用的物理旁链路共享信道PSSCH携带的内容和子载波间隔SCS中的至少一 项;
    接入方式与第三对象的第三关联关系,所述第三对象包括反馈信息的服务质量、反馈信息的优先级、反馈信息对应的PSSCH的服务质量、反馈信息对应的PSSCH的优先级、反馈信息的候选资源数量、反馈信息的剩余候选资源数量和反馈信息的候选资源的资源编号中的至少一项;
    第二反馈信息的信道接入方式。
  35. 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,其中,所述程序被所述处理器执行时实现如权利要求1至20中任一项所述的旁链路反馈信息的信道接入方法中的步骤。
  36. 一种通信设备,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或指令,其中,所述程序或指令被所述处理器执行时实现如权利要求21至26中任一项所述的旁链路反馈信息的信道接入处理方法中的步骤。
  37. 一种可读存储介质,所述可读存储介质上存储程序或指令,其中,所述程序或指被处理器执行时实现如权利要求1至20中任一项所述的旁链路反馈信息的信道接入方法的步骤,或者所述程序或指令被处理器执行时实现如权利要求21至26中任一项所述的旁链路反馈信息的信道接入处理方法的步骤。
  38. 一种芯片,包括处理器和通信接口,其中,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如权利要求1至20中任一项所述的旁链路反馈信息的信道接入方法,或者实现如权利要求21至26中任一项所述的旁链路反馈信息的信道接入处理方法。
  39. 一种计算机程序产品,其中,所述计算机程序产品被存储在非易失的存储介质中,所述计算机程序产品被至少一个处理器执行时实现如权利要求1至20中任一项所述的旁链路反馈信息的信道接入方法,或者实现如权利要求21至26中任一项所述的旁链路反馈信息的信道接入处理方法。
  40. 一种通信设备,被配置为执行如权利要求1至20中任一项所述的旁链路反馈信息的信道接入方法,或者执行如权利要求21至26中任一项所述的旁链路反馈信息的信道接入处理方法。
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