WO2023011454A1 - 旁链路资源确定方法、装置、终端及存储介质 - Google Patents

旁链路资源确定方法、装置、终端及存储介质 Download PDF

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Publication number
WO2023011454A1
WO2023011454A1 PCT/CN2022/109660 CN2022109660W WO2023011454A1 WO 2023011454 A1 WO2023011454 A1 WO 2023011454A1 CN 2022109660 W CN2022109660 W CN 2022109660W WO 2023011454 A1 WO2023011454 A1 WO 2023011454A1
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Prior art keywords
psfch
time
resource
pssch
periods
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PCT/CN2022/109660
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English (en)
French (fr)
Inventor
杨聿铭
彭淑燕
刘思綦
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Priority to JP2024506579A priority Critical patent/JP2024527140A/ja
Priority to EP22852166.2A priority patent/EP4383871A4/en
Publication of WO2023011454A1 publication Critical patent/WO2023011454A1/zh
Priority to US18/426,699 priority patent/US20240172254A1/en
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/40—Resource management for direct mode communication, e.g. D2D or sidelink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/25—Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink

Definitions

  • the present application belongs to the technical field of communication, and in particular relates to a sidelink resource determination method, device, terminal and storage medium.
  • unlicensed band unlicensed frequency band
  • licensed frequency band licensed band
  • PSFCH physical sidelink discovery feedback channel
  • Embodiments of the present application provide a method, device, terminal and storage medium for determining sidelink resources, which can solve the problem of implementing PSFCH transmission on an unlicensed frequency band.
  • a sidelink resource determination method including:
  • the receiving terminal determines PSFCH resources or PSFCH resource candidate resources according to the physical sidelink feedback channel PSFCH mapping rule
  • the PSFCH mapping rule satisfies at least one of the following:
  • an apparatus for determining sidelink resources including:
  • a determining module configured to determine PSFCH resources or PSFCH candidate resources according to the physical bypass feedback channel PSFCH mapping rule
  • the PSFCH mapping rule satisfies at least one of the following:
  • a terminal in a third aspect, includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor. When 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 PSFCH resources or PSFCH candidate resources according to a physical bypass feedback channel PSFCH mapping rule
  • the PSFCH mapping rule satisfies at least one of the following:
  • a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented.
  • 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.
  • 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 aspect the method described.
  • a communication device configured to execute the method described in the first aspect.
  • the receiving terminal determines PSFCH resources or PSFCH candidate resources according to the physical bypass feedback channel PSFCH mapping rule; wherein, the PSFCH mapping rule satisfies at least one of the following: PSFCH mapping is performed within M PSFCH periods, and M is greater than 1 is an integer; dynamically indicates the resource position of the PSFCH resource or the PSFCH candidate resource. In this way, PFSCH transmission can be realized on the unlicensed frequency band. At the same time, the reliability of PSFCH transmission can be guaranteed.
  • FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present application
  • FIG. 2 is a flow chart of a sidelink resource determination method provided in an embodiment of the present application
  • FIG. 3 is an example diagram 1 of a location of a PSFCH feedback resource corresponding to a PSSCH in a sidelink resource determination method provided by an embodiment of the present application;
  • FIG. 4 is an example diagram 2 of the position of the PSFCH feedback resource corresponding to the PSSCH in a sidelink resource determination method provided by an embodiment of the present application;
  • Figure 5 is an example of the position of the PSFCH feedback resource corresponding to the PSSCH in a sidelink resource determination method provided by the embodiment of the present application Figure 3;
  • Figure 6 is an example of the position of the PSFCH feedback resource corresponding to the PSSCH in a sidelink resource determination method provided by the embodiment of the present application Figure 4;
  • FIG. 7 is an example of the position of the PSFCH feedback resource corresponding to the PSSCH in a sidelink resource determination method provided by the embodiment of the present application FIG. 5;
  • Figure 8 is an example of the position of the PSFCH feedback resource corresponding to the PSSCH in a sidelink resource determination method provided by the embodiment of the present application Figure 6;
  • FIG. 9 is a structural diagram of an apparatus for determining sidelink resources provided by an embodiment of the present application.
  • FIG. 10 is a structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 11 is a structural diagram of a terminal 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
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies.
  • the following description describes the New Radio (New Radio, NR) system for example purposes, and uses NR terms in most of the following descriptions. These technologies can also be applied to applications other than NR system applications, such as the 6th generation (6th Generation, 6G) communication system.
  • 6G 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), a laptop computer (Laptop Computer) or a notebook computer, a personal digital Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (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 Service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), B Node, Evolved Node B (Evolved Node B, eNB), Home Node B, Home Evolved Node B, Wireless LAN (Wireless LAN) Local Area Network, WLAN) access point, WiFi node, Transmitting 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 is not limited to specific technical terms , it should be noted that in the embodiment of the present application, only the base station in the base station in the base station in the base transceiver station (Base Transceiver Station, B
  • 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, LET-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, listen before talk (LBT) and maximum channel occupancy time (maximum channel occupancy time, MCOT) and other rules.
  • 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 2LBT 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).
  • category4 LBT corresponds to type 1 uplink 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
  • Frame based equipment means that the transmission/reception timing of the equipment adopts a periodic structure, and its period is a fixed frame period (Fixed Frame Period, FFP).
  • the FBE node uses the LBT-based channel access mechanism to occupy the channel.
  • the node that initiates a transmission sequence that includes one or more consecutive transmissions is called the initiating device, and the other nodes are called the responding device.
  • the FBE node can be an initiating node, a responding node, or support both node functions.
  • 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. It can continue by backoff (backoff) several Extended Clear Channel Assessment (eCCA) Listen until the eCCA counter (counter) is zero.
  • backoff several Extended Clear Channel Assessment (eCCA) Listen until the eCCA counter (counter) is zero.
  • the UE transmits a PSFCH carrying hybrid automatic repeat request acknowledgment (HARQ-ACK) information on one or more sub-channels (sub-channel), as a physical sidelink shared channel (physical sidelink shared channel, PSSCH) received response, the transmitted HARQ-ACK information is positive acknowledgment (Acknowledgment, ACK) or negative acknowledgment (Negative Acknowledge, NACK), or only NACK.
  • HARQ-ACK hybrid automatic repeat request acknowledgment
  • the UE If the UE receives the PSSCH in the resource pool, and the sidelink control information (Sidelink Control Information, SCI) format (format) 0_2 schedules the PSSCH reception to instruct the UE to report the HARQ-ACK information, the UE will carry on the resources used for PSFCH transmission HARQ-ACK information.
  • SCI Sidelink Control Information
  • the resource block (Resource Block, RB) used for PSFCH transmission in the resource pool is divided according to the time slot index and subchannel index.
  • Case 2 HARQ-ACK information is transmitted on PSFCH resources corresponding to all subchannels occupied by PSSCH data.
  • the UE determines the resource index used for PSFCH transmission according to the receiving identifier (Identifier, ID) and the sending ID, and introduces cyclic shift pairs, that is, adopts code division technology to expand PSFCH transmission resources.
  • FIG. 2 is a flow chart of a sidelink resource determination method provided in an embodiment of the present application. As shown in FIG. 2, it includes the following steps:
  • Step 201 the receiving terminal determines PSFCH resources or PSFCH candidate resources according to the physical bypass feedback channel PSFCH mapping rule
  • the PSFCH mapping rule satisfies at least one of the following:
  • the above-mentioned receiving terminal can be understood as a receiving terminal of PSSCH. After the receiving terminal determines the PSFCH resource or PSFCH candidate resource, it can perform PSFCH transmission based on the determined PSFCH resource or PSFCH candidate resource.
  • the PSFCH can be understood as being used to carry feedback for the PSSCH transmission
  • a channel of information, for example, feedback information may include HARQ-ACK information and the like.
  • performing PSFCH mapping within M physical bypass feedback channel PSFCH periods can be understood as the first mapping rule
  • performing PSFCH mapping according to the dynamically indicated resource position can be understood as the second mapping rule
  • the first mapping rule when static or semi-static scheduling transmission is adopted, the first mapping rule may be used for mapping.
  • PSFCH mapping is performed based on M PSFCH periods, so that candidate PSFCH resource positions can be increased, which can increase the reliability of PSFCH transmission in unlicensed frequency bands.
  • the second rule can be used for mapping.
  • the PSFCH transmission can be dynamically scheduled according to the situation of the candidate resources, so as to avoid the unavailability of the selected candidate resources, resulting in the inability to transmit the PSFCH. Therefore, the embodiment of the present application improves the reliability of PSFCH transmission.
  • PSFCH resources or PSFCH resource candidate resources determined by the receiving terminal may be understood as resources of an unlicensed frequency band.
  • the receiving terminal performs the PSFCH mapping operation based on the PSFCH mapping rule; the receiving terminal sends the PSFCH on an unlicensed frequency band; wherein, the PSFCH mapping rule satisfies at least one of the following:
  • the PSFCH mapping is performed in the feedback channel PSFCH period, and M is an integer greater than 1; the PSFCH mapping is performed according to the dynamically indicated resource position.
  • PFSCH transmission can be realized on the unlicensed frequency band.
  • the reliability of PSFCH transmission can be guaranteed.
  • the value of M is associated with at least one of the following: maximum number of retransmissions, number of blind retransmissions, channel occupancy ratio (channel occupancy ratio, CR), channel busy ratio (channel busy ratio, CBR), hybrid automatic retransmission Send request for HARQ feedback mechanism, broadcast type (cast type), number of receiving terminals and number of terminals feeding back PSFCH.
  • the maximum number of times the first PSFCH is sent in the time domain is K, where K is a positive integer less than or equal to M.
  • the K transmission positions of the first PSFCH within the M PSFCH periods include:
  • the P PSFCH periods do not include any PSFCH period in the K-P PSFCH periods.
  • the above P can be 1, that is, the latest PSFCH cycle and K-1 PSFCH cycles satisfying the second preset condition, wherein, the latest PSFCH cycle is for the timeliness of feedback, and the other K-1 PSFCH cycles
  • the PSFCH period is an alternative period to prevent CCA failure.
  • both the first preset condition and the second preset condition include at least one of the following:
  • the time interval between the PSFCH sending position and the corresponding physical sidelink control channel (physical sidelink control channel, PSCCH) or PSSCH is greater than or equal to the data processing time;
  • the time interval between the PSFCH transmission position and the corresponding PSCCH or PSSCH is greater than or equal to the PSFCH transmission processing time
  • the time interval between the PSFCH transmission position and the corresponding PSCCH or PSSCH is greater than or equal to T1;
  • the time interval between the PSFCH transmission position and the corresponding PSCCH or PSSCH is greater than or equal to T3;
  • the time interval between the PSFCH transmission position and the corresponding PSCCH or PSSCH is greater than or equal to the remaining channel occupation time, or the time interval between the PSFCH transmission position and the corresponding PSCCH or PSSCH is less than or equal to the remaining channel occupation time.
  • the above T1 can be understood as the starting position of the resource selection window
  • the above T3 can be understood as the interval between the re-evaluation preemption and the selected resource.
  • the relationship between the PSFCH transmission position and the corresponding PSCCH or PSSCH time interval and the remaining channel occupation time may be different.
  • the time interval between the PSFCH sending position and the corresponding PSCCH or PSSCH is greater than or equal to the remaining channel occupation time; for semi-persistent scheduling transmission, the time interval between the PSFCH sending position and the corresponding PSCCH or PSSCH is greater than or equal to the remaining channel occupation time .
  • the shared COT because of the shared COT, it can also be set that for semi-persistently scheduled transmissions, the time interval between the PSFCH sending position and the corresponding PSCCH or PSSCH is less than or equal to the remaining channel occupation time, and for statically scheduled transmissions, the PSFCH sending position The time interval with the corresponding PSCCH or PSSCH is less than or equal to the remaining channel occupation time.
  • the second preset condition further includes at least one of the following:
  • the time interval between the sending positions of any two adjacent PSFCH periods is greater than or equal to the channel occupation time
  • the duration of the PSFCH cycle is longer than the maximum channel occupation time or the remaining channel occupation time.
  • the P PSFCH periods and the K-P PSFCH periods satisfy at least one of the following:
  • the sending power is different.
  • the CAPC rule satisfies:
  • the CAPC of the P PSFCH periods is determined according to at least one of the channel busy rate CBR, the channel occupancy rate CR, the number of terminals feeding back the PSFCH, the PSCCH corresponding to the PSFCH, and the PSSCH corresponding to the PSFCH;
  • the CAPC of the K-P PSFCH periods is determined according to at least one of the channel busy rate CBR, the channel occupancy rate CR, and the number of terminals feeding back the PSFCH.
  • the first preset time period is at least one of the following: M PSFCH periods, remaining channel occupation time, a preset time window, and a time period associated with a preset timer.
  • the value of K and the K first identification values are stipulated in the protocol, pre-configured on the network side device, configured on the network side device, indicated by the network side device or indicated by the terminal;
  • the first identification value is an identification value of the PSFCH cycle corresponding to the sending position of the first PSFCH.
  • the first identification value is indicated by the network side device or the terminal indicates the first identification
  • the first identification value is passed through radio resource control (Radio Resource Control, RRC), media access Control control element (Media Access Control Control Element, MAC CE), downlink control information (Downlink Control Information, DCI) or sidelink control information (Sidelink Control Information, SCI) indication.
  • RRC Radio Resource Control
  • Media Access Control Control Element Media Access Control Control Element
  • MAC CE Media Access Control Control Element
  • DCI Downlink Control Information
  • SCI Sidelink Control Information
  • the bit information of the indicated first identification value may be reserved bits (reserve bits) of the current DCI, or may be a newly added specific indication field.
  • the bit information of the indicated first identification value may be the reserve bits of the current SCI, or may be a newly added specific indication field.
  • the PSFCH resource or the PSFCH candidate resource occupies M1 physical resource blocks (physical resource block, PRB), M1 is a positive integer, and M1 satisfies at least one of the following:
  • M1 is a protocol agreement, network-side device pre-configuration, network-side device configuration, terminal configuration or terminal pre-configuration parameters; or, M1 is indicated by the indication information carried in RRC, MAC CE, DCI or SCI;
  • the PSFCH scheduling period is the M PSFCH periods.
  • association between M1 and the PSFCH feedback mechanism can be understood as whether the HARQ-ACK information is only transmitted on PSFCH resources corresponding to the initial subchannel or all subchannels of the subchannels (subchannels) occupied by PSSCH data.
  • the transmission resources corresponding to the first object on the PSSCH time slot are L PRBs in the M1 PRBs, and the first object One object is a sub-channel or an interlace block (interlace), and L is a positive integer.
  • the L PRBs are PRBs with an index range of [(slot_index+j*N)*L, (slot_index+1+j*N)*L-1] among the M1 PRBs , slot_index represents the index value of the PSSCH time slot, j represents the index value of the subchannel or interleaving block, and N represents the number of time slots in the PSFCH cycle.
  • the index value of the PSSCH time slot satisfies any of the following:
  • K represents the maximum number of times a PSFCH is sent in the time domain.
  • slot_index i+m*N, where i is the slot index (index) in each PSFCH cycle, and m is the mth PSFCH cycle currently located in the PSFCH scheduling cycle.
  • the L PRBs are M1 PRBs, and the index range within each PSFCH period is [(slot_index+j*N)*L, (slot_index+1+j*N) *L-1] PRB, slot_index represents the index value of the PSSCH time slot, j represents the index value of the subchannel or interleaving block, and N represents the number of time slots in the PSFCH cycle.
  • the index value of the PSSCH time slot is determined based on a time slot position within a PSFCH period associated with the PSFCH.
  • the subchannel or the index value of the interleaving block satisfies any of the following:
  • N f represents the total number of first objects in the frequency domain of a time slot, and the first objects are sub-channels or interleaving blocks.
  • the PSFCH mapping rule also satisfies at least one of the following:
  • the time-frequency domain resources of PSFCH are continuous or non-continuous;
  • the time-frequency domain mapping is performed with the PSFCH period as the unit.
  • the specific mapping sequence can be any of the following:
  • L may be related to interlace.
  • N cs is associated with the PSFCH scheduling period or the maximum number K of sending a PSFCH in the time domain.
  • N cs may also have nothing to do with the PSFCH scheduling period or the maximum number K of sending a PSFCH in the time domain.
  • the upper PSFCH sequence of the R transmission resources is a repetition of a sequence or a sequence shifted by different cyclic values of a sequence.
  • the above-mentioned cyclic value is related to K, M or resource block index, or is stipulated by a protocol, configured by a network-side device, or pre-configured by a network-side device.
  • the frequency domain mapping between PSFCH resource and UE location satisfies at least one of the following:
  • the calculation of the index of the PSFCH corresponding to the UE's PSCCH/PSSCH transmission is related to K/M; for example (PID+MID+M)modR, where the PID is the same as the MID and defined in the protocol.
  • the cyclic value of the resource index used by the UE to calculate the PSFCH feedback is related to K/M.
  • mapping rule when PSFCH mapping is performed within M physical bypass feedback channel PSFCH periods, and the frequency domain position of PFSCH is associated with the second object, the mapping rule also satisfies:
  • the second object is PSSCH or PSCCH.
  • M total PRB resources are allocated, and M total is related to K/M/N and/or the number of interlaces of PSCCH/PSSCH.
  • the interlace structure is adopted: the number of RBs corresponding to each PSFCH frequency domain is M UE , and the M UE is related to the interlace number of K/M/N and/or PSCCH/PSSCH.
  • the mapping may be performed on the M total PRB resources according to the sequence in the time domain.
  • the frequency-domain radio bearer RB corresponding to a PSFCH or the number of interleaved interleaving blocks MUE satisfies any of the following:
  • M UE is equal to the minimum number of RBs M OCB required to occupy the channel bandwidth
  • K represents the maximum number of times a PSFCH is sent in the time domain
  • N represents the number of time slots in the PSFCH cycle.
  • occupied channel bandwidth occupy channel bandwidth, OCB
  • OCB occupied channel bandwidth
  • the resource location includes a time domain location and a frequency domain location.
  • the time domain position is indicated by first indication information
  • the first indication information is used to indicate any of the following:
  • the PSFCH cycle offset value of the feedback PSFCH resource corresponding to the second object is the PSFCH cycle offset value of the feedback PSFCH resource corresponding to the second object
  • the first indication information is carried in SCI or DCI
  • the second object is PSSCH or PSCCH.
  • the time domain position when the time domain position is indicated by the SCI/DCI, it may indicate the slot index/slot offset value/PSFCH cycle offset value of the feedback PSFCH resource corresponding to the PSCCH/PSSCH.
  • the indication information occupies the reserve bits of the 1st SCI or adds an indication field in the 2nd SCI.
  • an indication field is added in the DCI.
  • the frequency domain position uses second indication information;
  • the second indication information is used to indicate any of the following: the frequency domain index value of the feedback PSFCH resource corresponding to the second object; the feedback PSFCH resource corresponding to the second object The frequency domain offset value of the resource;
  • the second indication information indicates that it is carried in sidelink control information or downlink control information, and the second object is PSSCH or PSCCH.
  • the indication information occupies the reserve bits of the 1st SCI or adds an indication field in the 2nd SCI.
  • an indication field is added in the DCI.
  • the PSFCH mapping rule is stipulated by a protocol, pre-configured by a network side device, configured by a network side device, pre-configured by a terminal, or configured by a terminal.
  • the selection or switching of PSFCH mapping rules may be determined by at least one of the following:
  • Protocol pre-definition network pre-configuration, network configuration, terminal pre-configuration or terminal configuration
  • the information carrying the Qbit in the DCI or SCI indicates the mapping rule of the current PSFCH, and Q is a positive integer.
  • the mapping sequence is time domain first and then frequency domain, and the mapping rule is that only when PSCCH/PSSCH exists, there will be PSFCH feedback resources, the positions of PSFCH feedback resources corresponding to each PSSCH are shown in FIG. 3 . It can be seen that there are PSFCH feedback resource positions corresponding to physical sidelink shared channel 1 and physical sidelink shared channel 2 on both time slot 1 and time slot 2, but the positions in the frequency domain are different.
  • the maximum number of transmission times of PSFCH feedback is increased to several times, which increases the possibility of successful transmission in an unlicensed frequency band compared with traditional mapping rules.
  • the dynamic mapping configuration in the frequency domain enables the maximum utilization of frequency domain resources.
  • mapping sequence is time domain first and then frequency domain, and the mapping rule is a static mapping rule
  • the positions of the PSFCH feedback resources corresponding to each PSSCH are shown in Figure 4, and it can be seen that in time slot 1 and time slot 2
  • the PSFCH feedback resource positions corresponding to the physical sidelink shared channel 1 and the physical sidelink shared channel 2 are the same.
  • the maximum number of transmission times of PSFCH feedback is increased to several times, which increases the possibility of successful transmission in an unlicensed frequency band compared with traditional mapping rules.
  • the positions of the PSFCH feedback resources corresponding to each PSSCH are shown in Figure 5. It can be seen that the physical sidelink shared channel 1 and the physical sidelink shared channel 2 correspond to The feedback positions are located on slot 1 and slot 3, respectively.
  • the maximum number of transmission times of PSFCH feedback is increased to several times, which increases the possibility of successful transmission in an unlicensed frequency band compared with traditional mapping rules.
  • a certain interval can be set between multiple transmissions depending on the transmission scenario, so as to meet some specific time requirements and ensure the possibility of multiple transmissions.
  • Embodiment 5 PSFCH mapping mode 1 during distributed resource allocation.
  • the lowest frequency domain position of the subchannel/interlace is mapped, and at the same time the same frequency domain position, the PSFCH corresponding to the different time domain position subchannel/interlace is distinguished by code domain multiplexing, as shown in Figure 7.
  • the PSFCH is mapped to a frequency domain position corresponding to a certain interlace of the corresponding PSSCH, and multiple different PSFCHs can occupy frequency domain resources to meet the requirements of OCB on the unlicensed frequency band.
  • Embodiment 6 PSFCH mapping mode 2 during distributed resource allocation.
  • the lowest frequency domain position of the subchannel/interlace is mapped, and the frequency domain position corresponding to the interlace of each PSSCH has a corresponding PSFCH mapping, making it easier to meet the OCB requirements; at the same time, the same frequency domain position, different time domain position subchannel/interlace
  • the corresponding PSFCHs are distinguished by code domain multiplexing.
  • PSFCH is mapped to the frequency domain position corresponding to each interlace corresponding to PSSCH, so that when the system congestion level is low, it can also meet the requirements of OCB in the unlicensed frequency band and prevent it from being preempted by other devices.
  • the execution subject may be the device for determining sidelink resources, or the device in the device for determining sidelink resources used to perform the method for determining sidelink resources control module.
  • the device for determining the sidelink resource provided by the embodiment of the present application is described by taking the method for determining the sidelink resource executed by the device for determining the sidelink resource as an example.
  • FIG. 9 is a structural diagram of an apparatus for determining a sidelink resource provided in an embodiment of the present application.
  • the apparatus 900 for determining a sidelink resource includes:
  • a determining module 901 configured to determine PSFCH resources or PSFCH candidate resources according to the physical bypass feedback channel PSFCH mapping rule
  • the PSFCH mapping rule satisfies at least one of the following:
  • the value of M is associated with at least one of the following: maximum number of retransmissions, number of blind retransmissions, channel occupancy rate, channel busy rate, hybrid automatic repeat request HARQ feedback mechanism, propagation type, number of receiving terminals, and feedback The number of terminals of PSFCH.
  • the maximum number of times the first PSFCH is sent in the time domain is K, where K is a positive integer less than or equal to M.
  • the K transmission positions of the first PSFCH within the M PSFCH periods include:
  • the P PSFCH periods do not include any PSFCH period in the K-P PSFCH periods.
  • both the first preset condition and the second preset condition include at least one of the following:
  • the time interval between the PSFCH sending position and the corresponding physical sidelink control channel PSCCH or physical sidelink shared channel PSSCH is greater than or equal to the data processing time
  • the time interval between the PSFCH transmission position and the corresponding PSCCH or PSSCH is greater than or equal to the PSFCH transmission processing time
  • the time interval between the PSFCH transmission position and the corresponding PSCCH or PSSCH is greater than or equal to T1;
  • the time interval between the PSFCH transmission position and the corresponding PSCCH or PSSCH is greater than or equal to T3;
  • the time interval between the PSFCH transmission position and the corresponding PSCCH or PSSCH is greater than or equal to the remaining channel occupation time, or the time interval between the PSFCH transmission position and the corresponding PSCCH or PSSCH is less than or equal to the remaining channel occupation time.
  • the second preset condition also includes at least one of the following:
  • the time interval between the sending positions of any two adjacent PSFCH periods is greater than or equal to the channel occupation time
  • the duration of the PSFCH cycle is longer than the maximum channel occupation time or the remaining channel occupation time.
  • the P PSFCH periods and the K-P PSFCH periods satisfy at least one of the following:
  • the sending power is different.
  • the CAPC rule satisfies:
  • the CAPC of the P PSFCH periods is determined according to at least one of the channel busy rate CBR, the channel occupancy rate CR, the number of terminals feeding back the PSFCH, the PSCCH corresponding to the PSFCH, and the PSSCH corresponding to the PSFCH;
  • the CAPC of the K-P PSFCH periods is determined according to at least one of the channel busy rate CBR, the channel occupancy rate CR, and the number of terminals feeding back the PSFCH.
  • the first preset time period is at least one of the following: M PSFCH periods, remaining channel occupation time, a preset time window, and a time period associated with a preset timer.
  • the value of K and the K first identification values are stipulated in the protocol, pre-configured on the network side device, configured on the network side device, indicated by the network side device or indicated by the terminal;
  • the first identification value is an identification value of the PSFCH cycle corresponding to the sending position of the first PSFCH.
  • the first identification value is passed through the radio resource control RRC, medium access control MAC control element CE, downlink Control information DCI or sidelink control information SCI indication.
  • the PSFCH resource or the PSFCH candidate resource occupies M1 PRBs in total, M1 is a positive integer, and M1 satisfies at least one of the following:
  • M1 is a protocol agreement, network-side device pre-configuration, network-side device configuration, terminal configuration or terminal pre-configuration parameters; or, M1 is indicated by the indication information carried in RRC, MAC CE, DCI or SCI;
  • the PSFCH scheduling period is the M PSFCH periods.
  • the transmission resources corresponding to the first object on the PSSCH time slot are L PRBs in the M1 PRBs, and the first object One object is a sub-channel or an interleaving block, and L is a positive integer.
  • the L PRBs are PRBs with an index range of [(slot_index+j*N)*L, (slot_index+1+j*N)*L-1] among the M1 PRBs, and slot_index represents a PSSCH time slot
  • the index value of , j represents the index value of the subchannel or interleaving block, and N represents the number of time slots in the PSFCH period.
  • the index value of the PSSCH time slot satisfies any of the following:
  • K represents the maximum number of times a PSFCH is sent in the time domain.
  • the L PRBs are among the M1 PRBs, which belong to the index range of [(slot_index+j*N)*L, (slot_index+1+j*N)*L-1] in each PSFCH cycle PRB, slot_index represents the index value of the PSSCH time slot, j represents the index value of the subchannel or interleaving block, and N represents the number of time slots in the PSFCH cycle.
  • the index value of the PSSCH time slot is determined based on a time slot position within a PSFCH period associated with the PSFCH.
  • the subchannel or the index value of the interleaving block satisfies any of the following:
  • N f represents the total number of first objects in the frequency domain of a time slot, and the first objects are sub-channels or interleaving blocks.
  • the PSFCH mapping rule also satisfies at least one of the following:
  • the time-frequency domain resources of PSFCH are continuous or non-continuous;
  • the time-frequency domain mapping is performed with the PSFCH period as the unit.
  • N cs is associated with the PSFCH scheduling period or the maximum number K of sending a PSFCH in the time domain.
  • the upper PSFCH sequence of the R transmission resources is a repetition of a sequence or a sequence shifted by different cyclic values of a sequence.
  • the frequency-domain radio bearer RB corresponding to a PSFCH or the number of interleaved interleaving blocks MUE satisfies any of the following:
  • M UE is equal to the minimum number of RBs M OCB required to occupy the channel bandwidth
  • K represents the maximum number of times a PSFCH is sent in the time domain
  • N represents the number of time slots in the PSFCH cycle.
  • mapping rule when PSFCH mapping is performed within M physical bypass feedback channel PSFCH periods, and the frequency domain position of PFSCH is associated with the second object, the mapping rule also satisfies:
  • the second object is PSSCH or PSCCH.
  • the resource location includes a time domain location and a frequency domain location.
  • the time domain position is indicated by first indication information, and the first indication information is used to indicate any of the following:
  • the PSFCH cycle offset value of the feedback PSFCH resource corresponding to the second object is the PSFCH cycle offset value of the feedback PSFCH resource corresponding to the second object
  • the first indication information is carried in SCI or DCI
  • the second object is PSSCH or PSCCH.
  • the frequency domain position uses second indication information;
  • the second indication information is used to indicate any of the following: the frequency domain index value of the feedback PSFCH resource corresponding to the second object; the feedback PSFCH resource corresponding to the second object The frequency domain offset value of the resource;
  • the second indication information indicates that it is carried in sidelink control information or downlink control information, and the second object is PSSCH or PSCCH.
  • the PSFCH mapping rule is stipulated by a protocol, pre-configured by a network side device, configured by a network side device, pre-configured by a terminal, or configured by a terminal.
  • the apparatus for determining sidelink resources 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 apparatus for determining sidelink resources in the embodiment of the present application may be an apparatus, an apparatus having an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal.
  • 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 computer, PC), a television ( television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.
  • the device for determining sidelink resources provided in the embodiment of the present application can realize each process realized by the method embodiment in FIG. 2 and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the embodiment of the present application also provides a communication device 1000, including a processor 1001, a memory 1002, and a program or instruction stored in the memory 1002 and operable on the processor 1001.
  • the program or instruction When executed by the processor 1001, each process of the above embodiment of the sidelink resource determination method can be realized, and the same technical effect can be achieved. To avoid repetition, details are not repeated 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 PSFCH resources or PSFCH candidate resources according to a physical bypass feedback channel PSFCH mapping rule; wherein, the PSFCH mapping rule satisfies at least one of the following: Perform PSFCH mapping within M PSFCH periods, where M is an integer greater than 1; dynamically indicate resource positions of PSFCH resources or PSFCH candidate resources.
  • 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. 11 is a schematic diagram of a hardware structure of a terminal implementing various embodiments of the present application.
  • the terminal 1100 includes but not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109, and a processor 1110. At least some parts.
  • the terminal 1100 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 1110 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. 11 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 1104 may include a graphics processor (Graphics Processing Unit, GPU) and a microphone, and the graphics processor is used by an image capture 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 1106 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 1107 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 1101 receives the downlink data from the network side device, and processes it to the processor 1110; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 1101 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 1109 can be used to store software programs or instructions as well as various data.
  • the memory 109 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 1109 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 1110 may include one or more processing units; optionally, the processor 1110 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, 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 1110 .
  • the processor 1110 is configured to determine PSFCH resources or PSFCH candidate resources according to the physical bypass feedback channel PSFCH mapping rule;
  • the PSFCH mapping rule satisfies at least one of the following:
  • the embodiment of the application determines PSFCH resources or PSFCH candidate resources according to the physical bypass feedback channel PSFCH mapping rule; wherein, the PSFCH mapping rule satisfies at least one of the following: PSFCH mapping is performed within M PSFCH periods, and M is an integer greater than 1 ; Dynamically indicate the resource location of the PSFCH resource or the PSFCH candidate resource. In this way, PFSCH transmission can be realized on the unlicensed frequency band. At the same time, the reliability of PSFCH transmission can be guaranteed.
  • the value of M is associated with at least one of the following: maximum number of retransmissions, number of blind retransmissions, channel occupancy rate, channel busy rate, hybrid automatic repeat request HARQ feedback mechanism, propagation type, number of receiving terminals, and feedback The number of terminals of PSFCH.
  • the maximum number of times the first PSFCH is sent in the time domain is K, where K is a positive integer less than or equal to M.
  • the K transmission positions of the first PSFCH within the M PSFCH periods include:
  • the P PSFCH periods do not include any PSFCH period in the K-P PSFCH periods.
  • both the first preset condition and the second preset condition include at least one of the following:
  • the time interval between the PSFCH sending position and the corresponding physical sidelink control channel PSCCH or physical sidelink shared channel PSSCH is greater than or equal to the data processing time
  • the time interval between the PSFCH transmission position and the corresponding PSCCH or PSSCH is greater than or equal to the PSFCH transmission processing time
  • the time interval between the PSFCH transmission position and the corresponding PSCCH or PSSCH is greater than or equal to T1;
  • the time interval between the PSFCH transmission position and the corresponding PSCCH or PSSCH is greater than or equal to T3;
  • the time interval between the PSFCH transmission position and the corresponding PSCCH or PSSCH is greater than or equal to the remaining channel occupation time, or the time interval between the PSFCH transmission position and the corresponding PSCCH or PSSCH is less than or equal to the remaining channel occupation time.
  • the second preset condition also includes at least one of the following:
  • the time interval between the sending positions of any two adjacent PSFCH periods is greater than or equal to the channel occupation time
  • the duration of the PSFCH cycle is longer than the maximum channel occupation time or the remaining channel occupation time.
  • the P PSFCH periods and the K-P PSFCH periods satisfy at least one of the following:
  • the sending power is different.
  • the CAPC rule satisfies:
  • the CAPC of the P PSFCH periods is determined according to at least one of the channel busy rate CBR, the channel occupancy rate CR, the number of terminals feeding back the PSFCH, the PSCCH corresponding to the PSFCH, and the PSSCH corresponding to the PSFCH;
  • the CAPC of the K-P PSFCH periods is determined according to at least one of the channel busy rate CBR, the channel occupancy rate CR, and the number of terminals feeding back the PSFCH.
  • the first preset time period is at least one of the following: M PSFCH periods, remaining channel occupation time, a preset time window, and a time period associated with a preset timer.
  • the value of K and the K first identification values are stipulated in the protocol, pre-configured on the network side device, configured on the network side device, indicated by the network side device or indicated by the terminal;
  • the first identification value is an identification value of the PSFCH cycle corresponding to the sending position of the first PSFCH.
  • the first identification value is passed through the radio resource control RRC, medium access control MAC control element CE, downlink Control information DCI or sidelink control information SCI indication.
  • the PSFCH resource or the PSFCH candidate resource occupies M1 physical resource block PRBs in total, M1 is a positive integer, and M1 satisfies at least one of the following:
  • M1 is a protocol agreement, network-side device pre-configuration, network-side device configuration, terminal configuration or terminal pre-configuration parameters; or, M1 is indicated by the indication information carried in RRC, MAC CE, DCI or SCI;
  • the PSFCH scheduling period is the M PSFCH periods.
  • the transmission resources corresponding to the first object on the PSSCH time slot are L PRBs in the M1 PRBs, and the first object One object is a sub-channel or an interleaving block, and L is a positive integer.
  • the L PRBs are PRBs with an index range of [(slot_index+j*N)*L, (slot_index+1+j*N)*L-1] among the M1 PRBs, and slot_index represents a PSSCH time slot
  • the index value of , j represents the index value of the subchannel or interleaving block, and N represents the number of time slots in the PSFCH period.
  • the index value of the PSSCH time slot satisfies any of the following:
  • K represents the maximum number of times a PSFCH is sent in the time domain.
  • the L PRBs are among the M1 PRBs, which belong to the index range of [(slot_index+j*N)*L, (slot_index+1+j*N)*L-1] in each PSFCH cycle PRB, slot_index represents the index value of the PSSCH time slot, j represents the index value of the subchannel or interleaving block, and N represents the number of time slots in the PSFCH cycle.
  • the index value of the PSSCH time slot is determined based on a time slot position within a PSFCH period associated with the PSFCH.
  • the subchannel or the index value of the interleaving block satisfies any of the following:
  • N f represents the total number of first objects in the frequency domain of a time slot, and the first objects are sub-channels or interleaving blocks.
  • the PSFCH mapping rule also satisfies at least one of the following:
  • the time-frequency domain resources of PSFCH are continuous or non-continuous;
  • the time-frequency domain mapping is performed with the PSFCH period as the unit.
  • N cs is associated with the PSFCH scheduling period or the maximum number K of sending a PSFCH in the time domain.
  • the upper PSFCH sequence of the R transmission resources is a repetition of a sequence or a sequence shifted by different cyclic values of a sequence.
  • the frequency-domain radio bearer RB corresponding to a PSFCH or the number of interleaved interleaving blocks MUE satisfies any of the following:
  • M UE is equal to the minimum number of RBs M OCB required to occupy the channel bandwidth
  • K represents the maximum number of times a PSFCH is sent in the time domain
  • N represents the number of time slots in the PSFCH cycle.
  • mapping rule when PSFCH mapping is performed within M physical bypass feedback channel PSFCH periods, and the frequency domain position of PFSCH is associated with the second object, the mapping rule also satisfies:
  • the second object is PSSCH or PSCCH.
  • the resource location includes a time domain location and a frequency domain location.
  • the time domain position is indicated by first indication information, and the first indication information is used to indicate any of the following:
  • the PSFCH cycle offset value of the feedback PSFCH resource corresponding to the second object is the PSFCH cycle offset value of the feedback PSFCH resource corresponding to the second object
  • the first indication information is carried in SCI or DCI
  • the second object is PSSCH or PSCCH.
  • the frequency domain position uses second indication information;
  • the second indication information is used to indicate any of the following: the frequency domain index value of the feedback PSFCH resource corresponding to the second object; the feedback PSFCH resource corresponding to the second object The frequency domain offset value of the resource;
  • the second indication information indicates that it is carried in sidelink control information or downlink control information, and the second object is PSSCH or PSCCH.
  • the PSFCH mapping rule is stipulated by a protocol, pre-configured by a network side device, configured by a network side device, pre-configured by a terminal, or configured by a terminal.
  • the embodiment of the present application also provides a readable storage medium, the readable storage medium may be nonvolatile or volatile, the readable storage medium stores programs or instructions, and the programs or instructions are stored in When executed by the processor, each process of the above embodiment of the sidelink resource determination method can be realized, and the same technical effect can be achieved. 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 implement the above-mentioned side link resource determination method
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used to run programs or instructions to implement the above-mentioned side link resource determination method
  • 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 computer program product, the computer program product is stored in a non-transitory storage medium, and the computer program product is executed by at least one processor to implement the above embodiment of the sidelink resource determination method
  • 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资源确定方法、装置、终端及存储介质，属于通信技术领域。本申请实施例的旁链路资源确定方法包括：接收终端根据物理旁链路反馈信道PSFCH映射规则确定PSFCH资源或PSFCH资源候选资源；其中，所述PSFCH映射规则满足以下至少一项：在M个PSFCH周期内进行PSFCH映射，M为大于1的整数；动态指示PSFCH资源或PSFCH候选资源的资源位置。

Description

旁链路资源确定方法、装置、终端及存储介质
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.202110882833.5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资源确定方法、装置、终端及存储介质。
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物理旁链路反馈信道(physical sidelink discovery feedback channel，PSFCH)传输成为了亟需解决的问题。
发明内容
本申请实施例提供一种旁链路资源确定方法、装置、终端及存储介质，能够解决在非授权频段上实现PSFCH传输的问题。
第一方面，提供了一种旁链路资源确定方法，包括：
接收终端根据物理旁链路反馈信道PSFCH映射规则确定PSFCH资源或PSFCH资源候选资源；
其中，所述PSFCH映射规则满足以下至少一项：
在M个PSFCH周期内进行PSFCH映射，M为大于1的整数；
动态指示PSFCH资源或PSFCH候选资源的资源位置。
第二方面，提供了一种旁链路资源确定装置，包括：
确定模块，用于根据物理旁路反馈信道PSFCH映射规则确定PSFCH资源或PSFCH候选资源；
其中，所述PSFCH映射规则满足以下至少一项：
在M个PSFCH周期内进行PSFCH映射，M为大于1的整数；
动态指示PSFCH资源或PSFCH候选资源的资源位置。
第三方面，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。
第四方面，提供了一种终端，包括处理器及通信接口，其中，
所述处理器用于根据物理旁路反馈信道PSFCH映射规则确定PSFCH资源或PSFCH候选资源；
其中，所述PSFCH映射规则满足以下至少一项：
在M个PSFCH周期内进行PSFCH映射，M为大于1的整数；
动态指示PSFCH资源或PSFCH候选资源的资源位置。
第五方面，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。
第六方面，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。
第七方面，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。
第十方面，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。
申请实施例通过接收终端根据物理旁路反馈信道PSFCH映射规则确定PSFCH资源或PSFCH候选资源；其中，所述PSFCH映射规则满足以下至少一项：在M个PSFCH周期内进行PSFCH映射，M为大于1的整数；动态指示PSFCH资源或PSFCH候选资源的资源位置。这样，可以在非授权频段上实现PFSCH传输。与此同时，可以保证PSFCH传输的可靠性。
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资源确定方法的流程图；
图3是本申请实施例提供的一种旁链路资源确定方法中PSSCH对应的PSFCH反馈资源的位置示例图一；
图4是本申请实施例提供的一种旁链路资源确定方法中PSSCH对应的PSFCH反馈资源的位置示例图二；
图5是本申请实施例提供的一种旁链路资源确定方法中PSSCH对应的PSFCH反馈资源的位置示例图三；
图6是本申请实施例提供的一种旁链路资源确定方法中PSSCH对应的PSFCH反馈资源的位置示例图四；
图7是本申请实施例提供的一种旁链路资源确定方法中PSSCH对应的PSFCH反馈资源的位置示例图五；
图8是本申请实施例提供的一种旁链路资源确定方法中PSSCH对应的PSFCH反馈资源的位置示例图六；
图9是本申请实施例提供的一种旁链路资源确定装置的结构图；
图10是本申请实施例提供的一种通信设备的结构图；
图11是本申请实施例提供的一种终端的结构图。
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(6th 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)、膝上型电脑(Laptop Computer)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)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(Evolved Node B，eNB)、家用B节点、家用演进型B节点、无线局域网(Wireless Local Area Network，WLAN)接入点、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，LET-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gNB，Category 2LBT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
基于帧的设备(frame based equipment，FBE)指设备的发送/接收定时采用周期结构，其周期为固定帧周期(Fixed Frame Period，FFP)。
FBE节点采用基于LBT的信道接入机制占用信道。其中发起包含一次或多次连续传输的传输序列的节点称之为发起节点(Initiating Device)，其它节点称之为响应节点(Responding Device)。FBE节点可以是发起节点，响应节点，或者同时支持两种节点功能。
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，可以通过回退(backoff)若干个扩展空闲信道评估(Extended Clear Channel Assessment，eCCA)继续进行侦听，直到eCCA的计数器(counter)为零。
三、PSFCH
UE在一个或者多个子信道(sub-channel)上传输携带混合自动重传请求应答(Hybrid automatic repeat request acknowledgement，HARQ-ACK)信息的PSFCH，作为对物理旁链路共享信道(physical sidelink shared channel，PSSCH)接收的应答，传输的HARQ-ACK信息为肯定确认(Acknowledgement，ACK)或否定确认(Negative Acknowledge，NACK)，或者仅为NACK。UE通过周期PSFCH资源(period PSFCH resource)获取PSFCH资源周期，其值N＝0/1/2/4时隙(slots)，当该参数值为0时，UE不传输PSFCH。
如果UE在资源池收到了PSSCH，且旁链路控制信息(Sidelink Control Information，SCI)格式(format)0_2调度PSSCH接收指示UE上报HARQ-ACK信息，则UE将在用于PSFCH传输的资源上承载HARQ-ACK信息。UE接收PSSCH数据的最后一个时隙与传输对应PSFCH的时隙之间的处理时延通过参数最小时间间隔PSFCH(MinTimeGapPSFCH)获得，其值k＝2或3slots。
资源池中用于PSFCH传输的资源块(Resource Block，RB)根据时隙索引和子信道索引进行划分，PSSCH与对应的PSFCH反馈资源间存在两种映射方式，即两种HARQ反馈机制。
四、HARQ反馈机制
情况1：HARQ-ACK信息仅在PSSCH数据占用的子信道中起始子信道对应的PSFCH资源上传输；
情况2：HARQ-ACK信息在PSSCH数据占用的全部子信道对应的PSFCH资源上传输。
UE根据接收标识(Identifier，ID)和发送ID决定用于PSFCH传输的资源索引，并引入循环移位对，即采用码分技术扩充PSFCH传输资源。
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资源确定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资源确定方法的流程图，如图2所示，包括以下步骤：
步骤201，接收终端根据物理旁路反馈信道PSFCH映射规则确定PSFCH资源或PSFCH候选资源；
其中，所述PSFCH映射规则满足以下至少一项：
在M个PSFCH周期内进行PSFCH映射，M为大于1的整数；
动态指示PSFCH资源或PSFCH候选资源的资源位置。
上述接收终端可以理解为PSSCH的接收终端，接收终端确定PSFCH资源或PSFCH候选资源后，可以基于确定的PSFCH资源或PSFCH候选资源进行PSFCH传输，该PSFCH可以理解为用于承载针对该PSSCH传输的反馈信息的信道，例如反馈信息可以包括HARQ-ACK信息等。
应理解，本申请实施例中，在M个物理旁路反馈信道PSFCH周期内进行PSFCH映射可以理解为第一种映射规则，根据动态指示的资源位置，进行PSFCH映射可以理解为第二种映射规则。
其中，当采用静态或者半静态调度传输的情况下，可以采用第一种映射规则进行映射。由于在采用静态或者半静态调度传输的情况下，基于M个PSFCH周期进行PSFCH映射，从而可以增加候选的PSFCH资源位置，这样可以增加在非授权频段传输PSFCH的可靠性。
当采用动态调度传输的情况下，可以采用第二种规则进行映射。此时可以根据候选资源的情况动态调度传输PSFCH，从而可以避免选择的候选资源 不可用，导致无法传输PSFCH。因此，本申请实施例提高了PSFCH传输的可靠性。
需要说明的是，接收终端确定的PSFCH资源或PSFCH资源候选资源可以理解为非授权频段的资源。
本申请实施例通过接收终端基于PSFCH映射规则执行PSFCH的映射操作；所述接收终端在非授权频段上发送所述PSFCH；其中，所述PSFCH映射规则满足以下至少一项：在M个物理旁路反馈信道PSFCH周期内进行PSFCH映射，M为大于1的整数；根据动态指示的资源位置，进行PSFCH映射。这样，可以在非授权频段上实现PFSCH传输。与此同时，可以保证PSFCH传输的可靠性。
可选地，M的取值与以下至少一项关联：最大重传次数、盲重传数量、信道占用率(channel occupancy ratio，CR)、信道忙率(channel busy ratio，CBR)、混合自动重传请求HARQ反馈机制、传播类型(cast type)、接收终端数量和反馈PSFCH的终端数量。
可选地，在M个PSFCH周期内的第一预设时间段内，第一PSFCH在时域上最大发送次数为K，K为小于或等于M的正整数。
可选地，在M个PSFCH周期内所述第一PSFCH的K个发送位置包括：
满足第一预设条件的最近P个PSFCH周期的PSFCH发送位置，P为小于或等于K的自然数；
满足第二预设条件的K-P个PSFCH周期的PSFCH发送位置；
其中，所述P个PSFCH周期不包含所述K-P个PSFCH周期中的任一个PSFCH周期。
本申请实施例中，上述P可以为1，即最近的一个PSFCH周期和满足第二预设条件的K-1个PSFCH周期，其中，最近一个PSFCH周期为了反馈的时效性，其他K-1个PSFCH周期是防止CCA失败备选的周期。
可选地，所述第一预设条件和第二预设条件均包括以下至少一项：
PSFCH发送位置与对应的物理旁链路控制信道(physical sidelink control channel，PSCCH)或PSSCH的时间间隔大于或等于数据处理时间；
PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔大于或等于 PSFCH发送处理时间；
PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔大于或等于T1；
PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔大于或等于T3；
PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔大于或等于剩余信道占用时间，或者，PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔小于或等于剩余信道占用时间。
本申请实施例中，上述T1可以理解为资源选择窗的起始位置，上述T3可以理解为重估抢占距所选资源的间隔。可选地，针对不同的传输场景，PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔与剩余信道占用时间的大小关系可以不同，例如，在一些实施例中，为了避开当前被占用的COT，针对静态调度传输，PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔大于或等于剩余信道占用时间，针对半静态调度传输，PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔大于或等于剩余信道占用时间。在一些实施例中，因为共享COT的原因，还可以设置，针对半静态调度传输，PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔小于或等于剩余信道占用时间，针对静态调度传输，PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔小于或等于剩余信道占用时间。
可选地，在一些实施例中，所述第二预设条件还包括以下至少一项：
任意相邻的两个PSFCH周期的发送位置的时间间隔大于或等于信道占用时间；
PSFCH周期的时长大于最大信道占用时间或剩余信道占用时间。
可选地，所述P个PSFCH周期和所述K-P个PSFCH周期满足以下至少一项：
信道接入优先级等级(Channel Access Priority Class，CAPC)规则不同；
需要满足的时间条件不同；
发送功率不同。
本申请实施例中，所述CAPC规则满足：
所述P个PSFCH周期的CAPC根据信道繁忙率CBR、信道占有率CR、反馈PSFCH的终端数量、PSFCH对应的PSCCH和PSFCH对应的PSSCH中 的至少一项确定；
所述K-P个PSFCH周期的CAPC根据信道繁忙率CBR、信道占有率CR、反馈PSFCH的终端数量中的至少一项确定。
应理解，由于在后面的K-P个PSFCH周期调整了CAPC，从而优化了系统的拥塞程度，提高了传输的可靠性。
可选地，所述第一预设时间段为以下至少一项：M个PSFCH周期、剩余信道占用时间、预设的时间窗和与预设的定时器关联的时间段。
可选地，所述K的取值和K个第一标识值由协议约定、网络侧设备预配置、网络侧设备配置、网络侧设备指示或终端指示；
其中，所述第一标识值为所述第一PSFCH的发送位置对应的PSFCH周期的标识值。
需要说明的是，在所述第一标识值由网络侧设备指示或终端指示所述第一标识的情况下，所述第一标识值通过无线资源控制(Radio Resource Control，RRC)、媒体接入控制控制元素(Media Access Control Control Element，MAC CE)、下行控制信息(Downlink Control Information，DCI)或旁链路控制信息(Sidelink Control Information，SCI)指示。
应理解，K的取值与第一标识值的指示方式可以相同。
可选地，当第一标识值由DCI指示时，指示的第一标识值的比特(bit)信息可以是当前DCI的预留比特(reserve bits)，也可以是新增的特定指示域。
同样的，当第一标识值由SCI指示时，指示的第一标识值的bit信息可以是当前SCI的reserve bits，也可以是新增的特定指示域。
可选地，所述PSFCH资源或所述PSFCH候选资源共占用M1个物理资源块(physical resource block，PRB)，M1为正整数，且M1满足以下至少一项：
M1为协议约定、网络侧设备预配置、网络侧设备配置、终端配置或终端预配置的参数；或者，M1由RRC、MAC CE、DCI或SCI中携带的指示信息指示；
M1与PSFCH周期、PSFCH调度周期、一个PSFCH在时域上最大发送次数、PSFCH反馈机制、PSFCH对应的PSSCH的PRB数、PSFCH对应的 PSSCH的交织块数和占用信道带宽要求的最低资源块RB数中的至少一项关联，所述PSFCH调度周期为所述M个PSFCH周期。
需要说明的是，M1与PSFCH反馈机制关联可以理解为HARQ-ACK信息仅在PSSCH数据占用的子信道(subchannel)中起始子信道还是全部子信道对应的PSFCH资源上传输。
可选地，对于PSFCH发送时域位置所关联的PSSCH时隙和第一对象，所述PSSCH时隙上的第一对象对应的发送资源为所述M1个PRB中的L个PRB，所述第一对象为子信道或者交织块(interlace)，L为正整数。
可选地，在一些实施例中，所述L个PRB为M1个PRB中索引范围为[(slot_index+j*N)*L,(slot_index+1+j*N)*L-1]的PRB，slot_index表示PSSCH时隙的索引值，j表示子信道或者交织块的索引值，N表示PSFCH周期中的时隙数量。
可选地，所述PSSCH时隙的索引值满足以下任一项：
基于PSFCH所关联的一个PSFCH调度周期内的时隙位置确定；
基于PSFCH所关联的K个PSFCH周期内的时隙位置确定，K表示一个PSFCH在时域上最大发送次数。
本申请实施例中，slot_index＝i+m*N，其中，i为每个PSFCH周期内的时隙索引(index)，m为当前位于PSFCH调度周期上的第m个PSFCH周期。
可选地，在一些实施例中，所述L个PRB为M1个PRB中，属于每个PSFCH周期内索引范围为[(slot_index+j*N)*L,(slot_index+1+j*N)*L-1]的PRB，slot_index表示PSSCH时隙的索引值，j表示子信道或者交织块的索引值，N表示PSFCH周期中的时隙数量。
本申请实施例中，所述PSSCH时隙的索引值是基于PSFCH所关联的一个PSFCH周期内的时隙位置确定。
可选地，所述子信道或者交织块的索引值满足以下任一项：
时隙上子信道的索引值或者交织块的索引值；
时隙上存在数据的子信道的频域顺序或者交织块的频域顺序。
可选地，L的取值满足：
Figure PCTCN2022109660-appb-000001
N f表示一个时隙频域上第一对象的总数，所述第一对象为子 信道或者交织块。
可选地，在M个物理旁路反馈信道PSFCH周期内进行PSFCH映射的情况下，所述PSFCH映射规则还满足以下至少一项：
PSFCH的时频域资源连续或非连续；
按照PSSCH时隙的时隙索引值的升序或降序，以及第一对象的索引值的升序或降序的方式进行映射；
以PSFCH周期为单位，进行时频域的映射。
本申请实施例中，具体的映射顺序可以为以下任一项：
先从PSSCH/PSCCH的slot_index的升序/降序开始，然后按照频域subchannel/interlace的index的升序/降序映射；
先从频域subchannel/interlace的index的升序/降序开始，然后按照slot_index的升序/降序映射；
按照PSFCH周期的index开始映射，先从PSFCH周期内的时隙i的升序/降序开始，然后按照频域subchannel/interlace的index的升序/降序映射，之后再进行下一个PSFCH周期的映射；
按照PSFCH周期的index开始映射，先从频域subchannel/interlace的index的升序/降序开始，然后按照PSFCH周期内的时隙i的升序/降序映射，之后再进行下一个PSFCH周期的映射。
可选地，一次PSFCH传输占用R个传输资源，R满足：R＝N type*L*N cs，N type表示反馈机制对应的目标值，N cs表示循环移位对的数量。本申请实施例中，L可能与interlace有关。
可选地，在本申请实施例中，N cs与PSFCH调度周期或一个PSFCH在时域上最大发送次数K关联。在其他实施例中，N cs也可以与PSFCH调度周期或一个PSFCH在时域上最大发送次数K无关。
可选地，所述R个传输资源的上PSFCH序列为一个序列的重复或者是一个序列的不同循环值移位后的序列。
需要说明的是，在一些实施例中，上述循环值与K、M或资源块索引相关，或者由协议约定、网络侧设备配置或网络侧设备预配置。
本申请实施例中，PSFCH资源与UE位置的频域映射满足以下至少之 一：
对应于UE的PSCCH/PSSCH传输的PSFCH的index的计算与K/M相关；例如(PID+MID+M)modR,其中PID与MID和协议中定义的相同。
UE用于计算PSFCH反馈的资源index的循环值，与K/M相关。
可选地，在M个物理旁路反馈信道PSFCH周期内进行PSFCH映射，且PFSCH的频域位置与第二对象关联的情况下，所述映射规则还满足：
从第二对象的最低交织块或者最高交织块对应的频域位置开始映射；
其中，所述第二对象为PSSCH或PSCCH。
例如，分配M total个PRB资源，M total与K/M/N和或PSCCH/PSSCH的interlace数相关。
采用interlace结构：每个PSFCH频域对应的RB数为M UE个，M UE与K/M/N和/或PSCCH/PSSCH的interlace数相关。
本申请实施中，可以按照时域顺序在M total个PRB资源中进行映射。
可选地，一次PSFCH对应的频域无线承载RB或者交织后的交织块的数量M UE满足以下任一项：
M UE等于占用信道带宽要求的最低RB数M OCB；
Figure PCTCN2022109660-appb-000002
Figure PCTCN2022109660-appb-000003
其中，K表示一个PSFCH在时域上最大发送次数，N表示PSFCH周期的时隙数量。
本申请实施例中，至少满足在只有一个PSFCH情况下做也能满足占用信道带宽(occupy channel bandwidth，OCB)要求，从而使得不被其他设备抢占信道。
可选地，在一些实施例中，所述资源位置包括时域位置和频域位置。
本申请实施例中，所述时域位置通过第一指示信息指示，所述第一指示信息用于指示以下任一项：
第二对象对应的反馈PSFCH资源的时隙索引值；
第二对象对应的反馈PSFCH资源的时隙偏移值；
第二对象对应的反馈PSFCH资源的PSFCH周期偏移值；
其中，所述第一指示信息承载于SCI或DCI，所述第二对象为PSSCH或PSCCH。
本申请实施例中，时域位置由SCI/DCI指示时，可以指示PSCCH/PSSCH对应的反馈PSFCH资源的时隙index/时隙偏移值/PSFCH周期偏移值。
可选地，由SCI指示时，指示信息占用1st SCI的reserve bits或者在2nd SCI新增指示域。由DCI指示时，在DCI新增指示域。
可选地，所述频域位置通过第二指示信息；所述第二指示信息用于指示以下任一项：第二对象对应的反馈PSFCH资源的频域索引值；第二对象对应的反馈PSFCH资源的频域偏移值；
其中，所述第二指示信息指示承载于旁链路控制信息或下行控制信息中，所述第二对象为PSSCH或PSCCH。
本申请实施例中，频域位置由SCI/DCI指示时，1.指示PSCCH/PSSCH对应的反馈PSFCH资源的频域index/频域偏移值。
可选地，由SCI指示时，指示信息占用1st SCI的reserve bits或者在2nd SCI新增指示域。由DCI指示时，在DCI新增指示域。
可选地，所述PSFCH映射规则由协议约定、网络侧设备预配置、网络侧设备配置、终端预配置或终端配置。
本申请实施例中，PSFCH映射规则的选择或切换可以由以下至少之一决定：
协议预定义、网络预配置、网络配置、终端预配置或终端配置
DCI或SCI中携带Qbit的信息指示当前PSFCH的映射规则，Q为正整数。
为了更好的理解本申请，以下通过一些具体实例对本申请的实现进行详细说明。
实施例一：PSFCH反馈资源为连续资源分配，PSFCH周期N＝1,调度周期M及最大重复次数K均设为2。当映射顺序为先时域，后频域时，且映射规则为存在PSCCH/PSSCH才会有PSFCH的反馈资源时，各个PSSCH对应的PSFCH反馈资源的位置如图3所示。可以看到，在时隙1和时隙2上均有物理旁链路共享信道1和物理旁链路共享信道2对应的PSFCH的反馈资源 位置，但是频域位置不同。
本实施例中，PSFCH反馈的最大传输次数增加到了多次，相较于传统的映射规则增加了在非授权频段成功传输的可能性。同时，频域上的动态映射配置使得频域资源得到最大程度的利用。
实施例二：PSFCH反馈资源为连续资源分配，PSFCH周期N＝1，调度周期M及最大重复次数K均设为2。
当映射顺序为先时域，后频域时，且映射规则为静态映射规则，各个PSSCH对应的PSFCH反馈资源的位置如图4所示，且可以看到，在时隙1和时隙2上物理旁链路共享信道1和物理旁链路共享信道2对应的PSFCH的反馈资源位置相同。
本实施例中，PSFCH反馈的最大传输次数增加到了多次，相较于传统的映射规则增加了在非授权频段成功传输的可能性。
实施例3：PSFCH反馈资源为连续资源分配，PSFCH周期N＝1,调度周期M配置为3，最大重复次数K配置为2，且非连续。
当映射顺序为先时域，后频域时，各个PSSCH对应的PSFCH反馈资源的位置如图5所示，可以看到，在物理旁链路共享信道1和物理旁链路共享信道2对应的反馈位置分别位于时隙1和时隙3上。
可以看到，PSFCH反馈的最大传输次数增加到了两次，相较于传统的映射规则增加了在非授权频段成功传输的可能性。
本实施例中，PSFCH反馈的最大传输次数增加到了多次，相较于传统的映射规则增加了在非授权频段成功传输的可能性。同时，多次传输之间可以视传输场景设置一定的间隔，从而满足一些特定的时间需求，保证多次传输的可能性。
实施例4：PSFCH反馈资源为连续资源分配，PSFCH周期N＝1，调度周期M及最大重复次数K均设为2。
当调度周期内每个PSFCH周期内的PSSCH与PSFCH的映射关系都以独立的方式存在时，不同PSFCH周期内相同频域位置的PSSCH在频域上的映射方式相同，但是在码域上通过不同的循环移位值加以区分(如图6所示)。
可以看到，PSFCH反馈的最大传输次数增加到了多次，相较于传统的映 射规则增加了在非授权频段成功传输的可能性。同时，不同时域上相同频域位置的PSSCH对应的PSFCH通过码域复用的方式进行映射，最大程度的利用了频域资源。
实施例五：分布式资源分配时PSFCH的映射方式1。
PSFCH反馈资源为非连续资源分配，PSFCH周期N＝1,调度周期M及最大重复次数K均设为2，此时PSSCH的频域是以interlace的方式存在，如图7所示，可以根据PSSCH所在subchannel/interlace的最低频域位置开始映射，同时相同频域位置，不同时域位置subchannel/interlace对应的PSFCH通过码域复用区分，如7图中物理旁链路共享信道1和物理旁链路共享信道3在slot2中的PSFCH反馈映射。
可以看到，PSFCH在对应PSSCH的某个interlace对应的频域位置进行映射，可以通过多个不同的PSFCH占用频域资源达到非授权频段上OCB的要求。
实施例六：分布式资源分配时PSFCH的映射方式2。
PSFCH反馈资源为非连续资源分配，PSFCH周期N＝1,调度周期M及最大重复次数K均设为2，此时PSSCH的频域是以interlace的方式存在，如图8所示，可以根据PSSCH所在subchannel/interlace的最低频域位置开始映射，并且每个PSSCH的interlace对应的频域位置均有对应的PSFCH映射，使得OCB要求更容易满足；同时相同频域位置，不同时域位置subchannel/interlace对应的PSFCH通过码域复用区分。
可以看到，PSFCH在对应PSSCH的每个interlace对应的频域位置都进行映射，这样在系统拥塞程度较低的时候也可以达到非授权频段OCB的要求，防止被其他设备抢占。
需要说明的是，本申请实施例提供的旁链路资源确定方法，执行主体可以为旁链路资源确定装置，或者，该旁链路资源确定装置中的用于执行旁链路资源确定方法的控制模块。本申请实施例中以旁链路资源确定装置执行旁链路资源确定方法为例，说明本申请实施例提供的旁链路资源确定装置。
请参见图9，图9是本申请实施例提供的一种旁链路资源确定装置的结构图，如图9所示，旁链路资源确定装置900包括：
确定模块901，用于根据物理旁路反馈信道PSFCH映射规则确定PSFCH资源或PSFCH候选资源；
其中，所述PSFCH映射规则满足以下至少一项：
在M个PSFCH周期内进行PSFCH映射，M为大于1的整数；
动态指示PSFCH资源或PSFCH候选资源的资源位置。
可选地，M的取值与以下至少一项关联：最大重传次数、盲重传数量、信道占用率、信道忙率、混合自动重传请求HARQ反馈机制、传播类型、接收终端数量和反馈PSFCH的终端数量。
可选地，在M个PSFCH周期内的第一预设时间段内，第一PSFCH在时域上最大发送次数为K，K为小于或等于M的正整数。
可选地，在M个PSFCH周期内所述第一PSFCH的K个发送位置包括：
满足第一预设条件的最近P个PSFCH周期的PSFCH发送位置，P为小于或等于K的自然数；
满足第二预设条件的K-P个PSFCH周期的PSFCH发送位置；
其中，所述P个PSFCH周期不包含所述K-P个PSFCH周期中的任一个PSFCH周期。
可选地，所述第一预设条件和第二预设条件均包括以下至少一项：
PSFCH发送位置与对应的物理旁链路控制信道PSCCH或物理旁链路共享信道PSSCH的时间间隔大于或等于数据处理时间；
PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔大于或等于PSFCH发送处理时间；
PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔大于或等于T1；
PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔大于或等于T3；
PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔大于或等于剩余信道占用时间，或者，PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔小于或等于剩余信道占用时间。
可选地，所述第二预设条件还包括以下至少一项：
任意相邻的两个PSFCH周期的发送位置的时间间隔大于或等于信道占用时间；
PSFCH周期的时长大于最大信道占用时间或剩余信道占用时间。
可选地，所述P个PSFCH周期和所述K-P个PSFCH周期满足以下至少一项：
信道接入优先级等级CAPC规则不同；
需要满足的时间条件不同；
发送功率不同。
可选地，所述CAPC规则满足：
所述P个PSFCH周期的CAPC根据信道繁忙率CBR、信道占有率CR、反馈PSFCH的终端数量、PSFCH对应的PSCCH和PSFCH对应的PSSCH中的至少一项确定；
所述K-P个PSFCH周期的CAPC根据信道繁忙率CBR、信道占有率CR、反馈PSFCH的终端数量中的至少一项确定。
可选地，所述第一预设时间段为以下至少一项：M个PSFCH周期、剩余信道占用时间、预设的时间窗和与预设的定时器关联的时间段。
可选地，所述K的取值和K个第一标识值由协议约定、网络侧设备预配置、网络侧设备配置、网络侧设备指示或终端指示；
其中，所述第一标识值为所述第一PSFCH的发送位置对应的PSFCH周期的标识值。
可选地，在所述第一标识值由网络侧设备指示或终端指示所述第一标识的情况下，所述第一标识值通过无线资源控制RRC、媒体接入控制MAC控制元素CE、下行控制信息DCI或旁链路控制信息SCI指示。
可选地，所述PSFCH资源或所述PSFCH候选资源共占用M1个物理资源块PRB，M1为正整数，且M1满足以下至少一项：
M1为协议约定、网络侧设备预配置、网络侧设备配置、终端配置或终端预配置的参数；或者，M1由RRC、MAC CE、DCI或SCI中携带的指示信息指示；
M1与PSFCH周期、PSFCH调度周期、一个PSFCH在时域上最大发送次数、PSFCH反馈机制、PSFCH对应的PSSCH的PRB数、PSFCH对应的PSSCH的交织块数和占用信道带宽要求的最低资源块RB数中的至少一项关 联，所述PSFCH调度周期为所述M个PSFCH周期。
可选地，对于PSFCH发送时域位置所关联的PSSCH时隙和第一对象，所述PSSCH时隙上的第一对象对应的发送资源为所述M1个PRB中的L个PRB，所述第一对象为子信道或者交织块，L为正整数。
可选地，所述L个PRB为M1个PRB中索引范围为[(slot_index+j*N)*L,(slot_index+1+j*N)*L-1]的PRB，slot_index表示PSSCH时隙的索引值，j表示子信道或者交织块的索引值，N表示PSFCH周期中的时隙数量。
可选地，所述PSSCH时隙的索引值满足以下任一项：
基于PSFCH所关联的一个PSFCH调度周期内的时隙位置确定；
基于PSFCH所关联的K个PSFCH周期内的时隙位置确定，K表示一个PSFCH在时域上最大发送次数。
可选地，所述L个PRB为M1个PRB中，属于每个PSFCH周期内索引范围为[(slot_index+j*N)*L,(slot_index+1+j*N)*L-1]的PRB，slot_index表示PSSCH时隙的索引值，j表示子信道或者交织块的索引值，N表示PSFCH周期中的时隙数量。
可选地，所述PSSCH时隙的索引值是基于PSFCH所关联的一个PSFCH周期内的时隙位置确定。
可选地，所述子信道或者交织块的索引值满足以下任一项：
时隙上子信道的索引值或者交织块的索引值；
时隙上存在数据的子信道的频域顺序或者交织块的频域顺序。
可选地，L的取值满足：
Figure PCTCN2022109660-appb-000004
N f表示一个时隙频域上第一对象的总数，所述第一对象为子信道或者交织块。
可选地，在M个物理旁路反馈信道PSFCH周期内进行PSFCH映射的情况下，所述PSFCH映射规则还满足以下至少一项：
PSFCH的时频域资源连续或非连续；
按照PSSCH时隙的时隙索引值的升序或降序，以及第一对象的索引值的升序或降序的方式进行映射；
以PSFCH周期为单位，进行时频域的映射。
可选地，一次PSFCH传输占用R个传输资源，R满足：R＝N type*L*N cs，N type表示反馈机制对应的目标值，N cs表示循环移位对的数量。
可选地，N cs与PSFCH调度周期或一个PSFCH在时域上最大发送次数K关联。
可选地，所述R个传输资源的上PSFCH序列为一个序列的重复或者是一个序列的不同循环值移位后的序列。
可选地，一次PSFCH对应的频域无线承载RB或者交织后的交织块的数量M UE满足以下任一项：
M UE等于占用信道带宽要求的最低RB数M OCB；
Figure PCTCN2022109660-appb-000005
Figure PCTCN2022109660-appb-000006
其中，K表示一个PSFCH在时域上最大发送次数，N表示PSFCH周期的时隙数量。
可选地，在M个物理旁路反馈信道PSFCH周期内进行PSFCH映射，且PFSCH的频域位置与第二对象关联的情况下，所述映射规则还满足：
从第二对象的最低交织块或者最高交织块对应的频域位置开始映射；
其中，所述第二对象为PSSCH或PSCCH。
可选地，所述资源位置包括时域位置和频域位置。
可选地，所述时域位置通过第一指示信息指示，所述第一指示信息用于指示以下任一项：
第二对象对应的反馈PSFCH资源的时隙索引值；
第二对象对应的反馈PSFCH资源的时隙偏移值；
第二对象对应的反馈PSFCH资源的PSFCH周期偏移值；
其中，所述第一指示信息承载于SCI或DCI，所述第二对象为PSSCH或PSCCH。
可选地，所述频域位置通过第二指示信息；所述第二指示信息用于指示以下任一项：第二对象对应的反馈PSFCH资源的频域索引值；第二对象对应的反馈PSFCH资源的频域偏移值；
其中，所述第二指示信息指示承载于旁链路控制信息或下行控制信息中，所述第二对象为PSSCH或PSCCH。
可选地，所述PSFCH映射规则由协议约定、网络侧设备预配置、网络侧设备配置、终端预配置或终端配置。
本申请实施例提供的旁链路资源确定装置能够实现图2的方法实施例中各个过程，为避免重复，这里不再赘述。
本申请实施例中的旁链路资源确定装置可以是装置，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 computer，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资源确定装置能够实现图2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。
如图10所示，本申请实施例还提供一种通信设备1000，包括处理器1001，存储器1002，存储在存储器1002上并可在所述处理器1001上运行的程序或指令，该程序或指令被处理器1001执行时实现上述旁链路资源确定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，处理器用于根据物理旁路反馈信道PSFCH映射规则确定PSFCH资源或PSFCH候选资源；其中，所述PSFCH映射规则满足以下至少一项：在M个PSFCH周期内进行PSFCH映射，M为大于1的整数；动态指示PSFCH资源或PSFCH候选资源的资源位置。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11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1100包括但不限于：射频单元1101、网络模块1102、音频输出单元1103、输入单元1104、传感器1105、显示单元1106、用户输入单元1107、 接口单元1108、存储器1109以及处理器1110等中的至少部分部件。
本领域技术人员可以理解，终端1100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1110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11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1104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1106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1107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1101将来自网络侧设备的下行数据接收后，给处理器1110处理；另外，将上行的数据发送给网络侧设备。通常，射频单元1101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1109可用于存储软件程序或指令以及各种数据。存储器109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1109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1110可包括一个或多个处理单元；可选地，处理器1110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1110中。
其中，处理器1110，用于根据物理旁路反馈信道PSFCH映射规则确定PSFCH资源或PSFCH候选资源；
其中，所述PSFCH映射规则满足以下至少一项：
在M个PSFCH周期内进行PSFCH映射，M为大于1的整数；
动态指示PSFCH资源或PSFCH候选资源的资源位置。
申请实施例通过根据物理旁路反馈信道PSFCH映射规则确定PSFCH资源或PSFCH候选资源；其中，所述PSFCH映射规则满足以下至少一项：在M个PSFCH周期内进行PSFCH映射，M为大于1的整数；动态指示PSFCH资源或PSFCH候选资源的资源位置。这样，可以在非授权频段上实现PFSCH传输。与此同时，可以保证PSFCH传输的可靠性。
可选地，M的取值与以下至少一项关联：最大重传次数、盲重传数量、信道占用率、信道忙率、混合自动重传请求HARQ反馈机制、传播类型、接收终端数量和反馈PSFCH的终端数量。
可选地，在M个PSFCH周期内的第一预设时间段内，第一PSFCH在时域上最大发送次数为K，K为小于或等于M的正整数。
可选地，在M个PSFCH周期内所述第一PSFCH的K个发送位置包括：
满足第一预设条件的最近P个PSFCH周期的PSFCH发送位置，P为小于或等于K的自然数；
满足第二预设条件的K-P个PSFCH周期的PSFCH发送位置；
其中，所述P个PSFCH周期不包含所述K-P个PSFCH周期中的任一个PSFCH周期。
可选地，所述第一预设条件和第二预设条件均包括以下至少一项：
PSFCH发送位置与对应的物理旁链路控制信道PSCCH或物理旁链路共享信道PSSCH的时间间隔大于或等于数据处理时间；
PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔大于或等于PSFCH发送处理时间；
PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔大于或等于T1；
PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔大于或等于T3；
PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔大于或等于剩余信道占用时间，或者，PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔小于或等于剩余信道占用时间。
可选地，所述第二预设条件还包括以下至少一项：
任意相邻的两个PSFCH周期的发送位置的时间间隔大于或等于信道占用时间；
PSFCH周期的时长大于最大信道占用时间或剩余信道占用时间。
可选地，所述P个PSFCH周期和所述K-P个PSFCH周期满足以下至少一项：
信道接入优先级等级CAPC规则不同；
需要满足的时间条件不同；
发送功率不同。
可选地，所述CAPC规则满足：
所述P个PSFCH周期的CAPC根据信道繁忙率CBR、信道占有率CR、反馈PSFCH的终端数量、PSFCH对应的PSCCH和PSFCH对应的PSSCH中的至少一项确定；
所述K-P个PSFCH周期的CAPC根据信道繁忙率CBR、信道占有率CR、反馈PSFCH的终端数量中的至少一项确定。
可选地，所述第一预设时间段为以下至少一项：M个PSFCH周期、剩余信道占用时间、预设的时间窗和与预设的定时器关联的时间段。
可选地，所述K的取值和K个第一标识值由协议约定、网络侧设备预配置、网络侧设备配置、网络侧设备指示或终端指示；
其中，所述第一标识值为所述第一PSFCH的发送位置对应的PSFCH周期的标识值。
可选地，在所述第一标识值由网络侧设备指示或终端指示所述第一标识的情况下，所述第一标识值通过无线资源控制RRC、媒体接入控制MAC控制元素CE、下行控制信息DCI或旁链路控制信息SCI指示。
可选地，所述PSFCH资源或所述PSFCH候选资源共占用M1个物理资 源块PRB，M1为正整数，且M1满足以下至少一项：
M1为协议约定、网络侧设备预配置、网络侧设备配置、终端配置或终端预配置的参数；或者，M1由RRC、MAC CE、DCI或SCI中携带的指示信息指示；
M1与PSFCH周期、PSFCH调度周期、一个PSFCH在时域上最大发送次数、PSFCH反馈机制、PSFCH对应的PSSCH的PRB数、PSFCH对应的PSSCH的交织块数和占用信道带宽要求的最低资源块RB数中的至少一项关联，所述PSFCH调度周期为所述M个PSFCH周期。
可选地，对于PSFCH发送时域位置所关联的PSSCH时隙和第一对象，所述PSSCH时隙上的第一对象对应的发送资源为所述M1个PRB中的L个PRB，所述第一对象为子信道或者交织块，L为正整数。
可选地，所述L个PRB为M1个PRB中索引范围为[(slot_index+j*N)*L,(slot_index+1+j*N)*L-1]的PRB，slot_index表示PSSCH时隙的索引值，j表示子信道或者交织块的索引值，N表示PSFCH周期中的时隙数量。
可选地，所述PSSCH时隙的索引值满足以下任一项：
基于PSFCH所关联的一个PSFCH调度周期内的时隙位置确定；
基于PSFCH所关联的K个PSFCH周期内的时隙位置确定，K表示一个PSFCH在时域上最大发送次数。
可选地，所述L个PRB为M1个PRB中，属于每个PSFCH周期内索引范围为[(slot_index+j*N)*L,(slot_index+1+j*N)*L-1]的PRB，slot_index表示PSSCH时隙的索引值，j表示子信道或者交织块的索引值，N表示PSFCH周期中的时隙数量。
可选地，所述PSSCH时隙的索引值是基于PSFCH所关联的一个PSFCH周期内的时隙位置确定。
可选地，所述子信道或者交织块的索引值满足以下任一项：
时隙上子信道的索引值或者交织块的索引值；
时隙上存在数据的子信道的频域顺序或者交织块的频域顺序。
可选地，L的取值满足：
Figure PCTCN2022109660-appb-000007
N f表示一个时隙频域上第一对象的总数，所述第一对象为子信道或者交织块。
可选地，在M个物理旁路反馈信道PSFCH周期内进行PSFCH映射的情况下，所述PSFCH映射规则还满足以下至少一项：
PSFCH的时频域资源连续或非连续；
按照PSSCH时隙的时隙索引值的升序或降序，以及第一对象的索引值的升序或降序的方式进行映射；
以PSFCH周期为单位，进行时频域的映射。
可选地，一次PSFCH传输占用R个传输资源，R满足：R＝N type*L*N cs，N type表示反馈机制对应的目标值，N cs表示循环移位对的数量。
可选地，N cs与PSFCH调度周期或一个PSFCH在时域上最大发送次数K关联。
可选地，所述R个传输资源的上PSFCH序列为一个序列的重复或者是一个序列的不同循环值移位后的序列。
可选地，一次PSFCH对应的频域无线承载RB或者交织后的交织块的数量M UE满足以下任一项：
M UE等于占用信道带宽要求的最低RB数M OCB；
Figure PCTCN2022109660-appb-000008
Figure PCTCN2022109660-appb-000009
其中，K表示一个PSFCH在时域上最大发送次数，N表示PSFCH周期的时隙数量。
可选地，在M个物理旁路反馈信道PSFCH周期内进行PSFCH映射，且PFSCH的频域位置与第二对象关联的情况下，所述映射规则还满足：
从第二对象的最低交织块或者最高交织块对应的频域位置开始映射；
其中，所述第二对象为PSSCH或PSCCH。
可选地，所述资源位置包括时域位置和频域位置。
可选地，所述时域位置通过第一指示信息指示，所述第一指示信息用于指示以下任一项：
第二对象对应的反馈PSFCH资源的时隙索引值；
第二对象对应的反馈PSFCH资源的时隙偏移值；
第二对象对应的反馈PSFCH资源的PSFCH周期偏移值；
其中，所述第一指示信息承载于SCI或DCI，所述第二对象为PSSCH或PSCCH。
可选地，所述频域位置通过第二指示信息；所述第二指示信息用于指示以下任一项：第二对象对应的反馈PSFCH资源的频域索引值；第二对象对应的反馈PSFCH资源的频域偏移值；
其中，所述第二指示信息指示承载于旁链路控制信息或下行控制信息中，所述第二对象为PSSCH或PSCCH。
可选地，所述PSFCH映射规则由协议约定、网络侧设备预配置、网络侧设备配置、终端预配置或终端配置。
本申请实施例还提供一种可读存储介质，所述可读存储介质可以是非易失的，也可以是易失的，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资源确定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，实现上述旁链路资源确定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计算机程序产品，所述计算机程序产品存储在非瞬态的存储介质中，所述计算机程序产品被至少一个处理器执行以实现上述旁链路资源确定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. 一种旁链路资源确定方法，包括：
    接收终端根据物理旁链路反馈信道PSFCH映射规则确定PSFCH资源或PSFCH资源候选资源；
    其中，所述PSFCH映射规则满足以下至少一项：
    在M个PSFCH周期内进行PSFCH映射，M为大于1的整数；
    动态指示PSFCH资源或PSFCH候选资源的资源位置。
  2. 根据权利要求1所述的方法，其中，M的取值与以下至少一项关联：最大重传次数、盲重传数量、信道占用率、信道忙率、混合自动重传请求HARQ反馈机制、传播类型、接收终端数量和反馈PSFCH的终端数量。
  3. 根据权利要求1所述的方法，其中，在M个PSFCH周期内的第一预设时间段内，第一PSFCH在时域上最大发送次数为K，K为小于或等于M的正整数。
  4. 根据权利要求3所述的方法，其中，在M个PSFCH周期内所述第一PSFCH的K个发送位置包括：
    满足第一预设条件的最近P个PSFCH周期的PSFCH发送位置，P为小于或等于K的自然数；
    满足第二预设条件的K-P个PSFCH周期的PSFCH发送位置；
    其中，所述P个PSFCH周期不包含所述K-P个PSFCH周期中的任一个PSFCH周期。
  5. 根据权利要求4所述的方法，其中，所述第一预设条件和第二预设条件均包括以下至少一项：
    PSFCH发送位置与对应的物理旁链路控制信道PSCCH或物理旁链路共享信道PSSCH的时间间隔大于或等于数据处理时间；
    PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔大于或等于PSFCH发送处理时间；
    PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔大于或等于T1；
    PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔大于或等于T3；
    PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔大于或等于剩余信道占用时间，或者，PSFCH发送位置与对应的PSCCH或PSSCH的时间间隔小于或等于剩余信道占用时间。
  6. 根据权利要求5所述的方法，其中，所述第二预设条件还包括以下至少一项：
    任意相邻的两个PSFCH周期的发送位置的时间间隔大于或等于信道占用时间；
    PSFCH周期的时长大于最大信道占用时间或剩余信道占用时间。
  7. 根据权利要求4所述的方法，其中，所述P个PSFCH周期和所述K-P个PSFCH周期满足以下至少一项：
    信道接入优先级等级CAPC规则不同；
    需要满足的时间条件不同；
    发送功率不同。
  8. 根据权利要求7所述的方法，其中，所述CAPC规则满足：
    所述P个PSFCH周期的CAPC根据信道繁忙率CBR、信道占有率CR、反馈PSFCH的终端数量、PSFCH对应的PSCCH和PSFCH对应的PSSCH中的至少一项确定；
    所述K-P个PSFCH周期的CAPC根据信道繁忙率CBR、信道占有率CR、反馈PSFCH的终端数量中的至少一项确定。
  9. 根据权利要求3所述的方法，其中，所述第一预设时间段为以下至少一项：M个PSFCH周期、剩余信道占用时间、预设的时间窗和与预设的定时器关联的时间段。
  10. 根据权利要求3所述的方法，其中，所述K的取值和K个第一标识值由协议约定、网络侧设备预配置、网络侧设备配置、网络侧设备指示或终端指示；
    其中，所述第一标识值为所述第一PSFCH的发送位置对应的PSFCH周期的标识值。
  11. 根据权利要求10所述的方法，其中，在所述第一标识值由网络侧设备指示或终端指示所述第一标识的情况下，所述第一标识值通过无线资源控 制RRC、媒体接入控制MAC控制元素CE、下行控制信息DCI或旁链路控制信息SCI指示。
  12. 根据权利要求1所述的方法，其中，所述PSFCH资源或所述PSFCH候选资源共占用M1个物理资源块PRB，M1为正整数，且M1满足以下至少一项：
    M1为协议约定、网络侧设备预配置、网络侧设备配置、终端配置或终端预配置的参数；或者，M1由RRC、MAC CE、DCI或SCI中携带的指示信息指示；
    M1与PSFCH周期、PSFCH调度周期、一个PSFCH在时域上最大发送次数、PSFCH反馈机制、PSFCH对应的PSSCH的PRB数、PSFCH对应的PSSCH的交织块数和占用信道带宽要求的最低资源块RB数中的至少一项关联，所述PSFCH调度周期为所述M个PSFCH周期。
  13. 根据权利要求12所述的方法，其中，对于PSFCH发送时域位置所关联的PSSCH时隙和第一对象，所述PSSCH时隙上的第一对象对应的发送资源为所述M1个PRB中的L个PRB，所述第一对象为子信道或者交织块，L为正整数。
  14. 根据权利要求13所述的方法，其中，所述L个PRB为M1个PRB中索引范围为[(slot_index+j*N)*L,(slot_index+1+j*N)*L-1]的PRB，slot_index表示PSSCH时隙的索引值，j表示子信道或者交织块的索引值，N表示PSFCH周期中的时隙数量。
  15. 根据权利要求14所述的方法，其中，所述PSSCH时隙的索引值满足以下任一项：
    基于PSFCH所关联的一个PSFCH调度周期内的时隙位置确定；
    基于PSFCH所关联的K个PSFCH周期内的时隙位置确定，K表示一个PSFCH在时域上最大发送次数。
  16. 根据权利要求13所述的方法，其中，所述L个PRB为M1个PRB中，属于每个PSFCH周期内索引范围为[(slot_index+j*N)*L,(slot_index+1+j*N)*L-1]的PRB，slot_index表示PSSCH时隙的索引值，j表示子信道或者交织块的索引值，N表示PSFCH周期中的时隙数量。
  17. 根据权利要求16所述的方法，其中，所述PSSCH时隙的索引值是基于PSFCH所关联的一个PSFCH周期内的时隙位置确定。
  18. 根据权利要求13至17任一项所述的方法，其中，所述子信道或者交织块的索引值满足以下任一项：
    时隙上子信道的索引值或者交织块的索引值；
    时隙上存在数据的子信道的频域顺序或者交织块的频域顺序。
  19. 根据权利要求13至17任一项所述的方法，其中，L的取值满足：
    Figure PCTCN2022109660-appb-100001
    N f表示一个时隙频域上第一对象的总数，所述第一对象为子信道或者交织块。
  20. 根据权利要求13至17任一项所述的方法，其中，在M个PSFCH周期内进行PSFCH映射的情况下，所述PSFCH映射规则还满足以下至少一项：
    PSFCH的时频域资源连续或非连续；
    按照PSSCH时隙的时隙索引值的升序或降序，以及第一对象的索引值的升序或降序的方式进行映射；
    以PSFCH周期为单位，进行时频域的映射。
  21. 根据权利要求13至17任一项所述的方法，其中，一次PSFCH传输占用R个传输资源，R满足：R＝N type*L*N cs，N type表示反馈机制对应的目标值，N cs表示循环移位对的数量。
  22. 根据权利要求21所述的方法，其中，N cs与PSFCH调度周期或一个PSFCH在时域上最大发送次数K关联。
  23. 根据权利要求22所述的方法，其中，所述R个传输资源的上PSFCH序列为一个序列的重复或者是一个序列的不同循环值移位后的序列。
  24. 根据权利要求1所述的方法，其中，一次PSFCH对应的频域无线承载RB或者交织后的交织块的数量M UE满足以下任一项：
    M UE等于占用信道带宽要求的最低RB数M OCB；
    Figure PCTCN2022109660-appb-100002
    Figure PCTCN2022109660-appb-100003
    其中，K表示一个PSFCH在时域上最大发送次数，N表示PSFCH周期 的时隙数量。
  25. 根据权利要求1所述的方法，其中，在M个PSFCH周期内进行PSFCH映射，且PFSCH的频域位置与第二对象关联的情况下，所述映射规则还满足：
    从第二对象的最低交织块或者最高交织块对应的频域位置开始映射；
    其中，所述第二对象为PSSCH或PSCCH。
  26. 根据权利要求1所述的方法，其中，所述资源位置包括时域位置和频域位置。
  27. 根据权利要求26所述的方法，其中，所述时域位置通过第一指示信息指示，所述第一指示信息用于指示以下任一项：
    第二对象对应的反馈PSFCH资源的时隙索引值；
    第二对象对应的反馈PSFCH资源的时隙偏移值；
    第二对象对应的反馈PSFCH资源的PSFCH周期偏移值；
    其中，所述第一指示信息承载于SCI或DCI，所述第二对象为PSSCH或PSCCH。
  28. 根据权利要求26所述的方法，其中，所述频域位置通过第二指示信息；所述第二指示信息用于指示以下任一项：第二对象对应的反馈PSFCH资源的频域索引值；第二对象对应的反馈PSFCH资源的频域偏移值；
    其中，所述第二指示信息指示承载于旁链路控制信息或下行控制信息中，所述第二对象为PSSCH或PSCCH。
  29. 根据权利要求1所述的方法，其中，所述PSFCH映射规则由协议约定、网络侧设备预配置、网络侧设备配置、终端预配置或终端配置。
  30. 一种旁链路资源确定装置，包括：
    确定模块，用于根据物理旁路反馈信道PSFCH映射规则确定PSFCH资源或PSFCH候选资源；
    其中，所述PSFCH映射规则满足以下至少一项：
    在M个PSFCH周期内进行PSFCH映射，M为大于1的整数；
    动态指示PSFCH资源或PSFCH候选资源的资源位置。
  31. 根据权利要求30所述的装置，其中，M的取值与以下至少一项关联：最大重传次数、盲重传数量、信道占用率、信道忙率、混合自动重传请求HARQ 反馈机制、传播类型、接收终端数量和反馈PSFCH的终端数量。
  32. 根据权利要求31所述的装置，其中，在M个PSFCH周期内的第一预设时间段内，第一PSFCH在时域上最大发送次数为K，K为小于或等于M的正整数。
  33. 根据权利要求32所述的装置，其中，在M个PSFCH周期内所述第一PSFCH的K个发送位置包括：
    满足第一预设条件的最近P个PSFCH周期的PSFCH发送位置，P为小于或等于K的自然数；
    满足第二预设条件的K-P个PSFCH周期的PSFCH发送位置；
    其中，所述P个PSFCH周期不包含所述K-P个PSFCH周期中的任一个PSFCH周期。
  34. 根据权利要求32所述的装置，其中，所述第一预设时间段为以下至少一项：M个PSFCH周期、剩余信道占用时间、预设的时间窗和与预设的定时器关联的时间段。
  35. 根据权利要求30所述的装置，其中，所述PSFCH资源或所述PSFCH候选资源共占用M1个物理资源块PRB，M1为正整数，且M1满足以下至少一项：
    M1为协议约定、网络侧设备预配置、网络侧设备配置、终端配置或终端预配置的参数；或者，M1由RRC、MAC CE、DCI或SCI中携带的指示信息指示；
    M1与PSFCH周期、PSFCH调度周期、一个PSFCH在时域上最大发送次数、PSFCH反馈机制、PSFCH对应的PSSCH的PRB数、PSFCH对应的PSSCH的交织块数和占用信道带宽要求的最低资源块RB数中的至少一项关联，所述PSFCH调度周期为所述M个PSFCH周期。
  36. 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29中任一项所述的旁链路资源确定方法中的步骤。
  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29中任一项所述的旁链路资 源确定方法的步骤。
  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29中任一项所述的旁链路资源确定方法的步骤。
  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瞬态的可读存储介质中，所述计算机程序产品被至少一个处理器执行以实现如权利要求1至29中任一项所述的旁链路资源确定方法的步骤。
  40. 一种通信设备，被配置为执行如权利要求1至29中任一项所述的旁链路资源确定方法的步骤。
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