WO2024067573A1 - Sl资源分配方法、装置及终端 - Google Patents

Sl资源分配方法、装置及终端 Download PDF

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Publication number
WO2024067573A1
WO2024067573A1 PCT/CN2023/121504 CN2023121504W WO2024067573A1 WO 2024067573 A1 WO2024067573 A1 WO 2024067573A1 CN 2023121504 W CN2023121504 W CN 2023121504W WO 2024067573 A1 WO2024067573 A1 WO 2024067573A1
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Prior art keywords
candidate
slot
resource
resources
terminal
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PCT/CN2023/121504
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English (en)
French (fr)
Inventor
李�灿
李佳林
姜蕾
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames

Definitions

  • the present application belongs to the field of communication technology, and specifically relates to a SL resource allocation method, device and terminal.
  • the terminal In sidelink (SL) transmission in unlicensed spectrum, the terminal supports continuous multi-slot transmission in order to maintain channel occupancy after acquiring the channel.
  • SL sidelink
  • mode 2 resource allocation of SL terminals is based on single-slot units, which has poor matching with multi-slot transmission, leading to low time-frequency resource efficiency of SL transmission.
  • the embodiments of the present application provide a SL resource allocation method, device and terminal, which can solve the problem of low time-frequency resource efficiency of SL transmission.
  • a SL resource allocation method which includes: a terminal determines M target candidate multi-slot resources based on resources within a resource selection window; wherein the M target candidate multi-slot resources are used for SL transmission, and each target candidate multi-slot resource includes resources of N consecutive time slots, N is an integer greater than 1, and M is a positive integer.
  • a SL resource allocation device which includes: a determination module, used to determine M target candidate multi-slot resources based on resources within a resource selection window; wherein the M target candidate multi-slot resources are used for SL transmission, and each target candidate multi-slot resource includes resources of N consecutive time slots, N is an integer greater than 1, and M is a positive integer.
  • a terminal comprising a processor and a memory, wherein the memory stores a program or instruction that can be executed on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.
  • a terminal including a processor and a communication interface; wherein the processor is configured to The source selects resources within the window and determines M target candidate multi-slot resources;
  • the M target candidate multi-slot resources are used for SL transmission, and each target candidate multi-slot resource includes resources of N consecutive time slots, where N is an integer greater than 1 and M is a positive integer.
  • a readable storage medium on which a program or instruction is stored.
  • the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.
  • a chip comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect.
  • a computer program/program product is provided, wherein the computer program/program product is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect.
  • the terminal can determine M target candidate multi-slot resources for SL transmission based on the resources within the resource selection window, and each target candidate multi-slot resource includes N consecutive slot resources; the terminal can select N consecutive slot resources as the target candidate multi-slot resources, that is, the terminal supports multi-slot-based resource allocation, so that the terminal can use the target candidate multi-slot resources to perform multi-slot SL transmission in the unlicensed spectrum, and use multiple consecutive slot resources for transmission at the same time, effectively increasing the time-frequency resource efficiency of SL transmission.
  • FIG1 is a schematic diagram of a wireless communication system applicable to an embodiment of the present application.
  • FIG2 is a schematic diagram of the interaction between UL, DL and SL in the prior art
  • FIG3 is a schematic diagram of PSCCH and PSSCH in a subchannel in the prior art
  • FIG4 is a flow chart of a method for allocating SL resources according to an embodiment of the present application.
  • FIG5 is a schematic diagram of the structure of an SL resource allocation device provided in an embodiment of the present application.
  • FIG6 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
  • FIG. 7 is a schematic diagram of the structure of a terminal provided in an embodiment of the present application.
  • first”, “second”, etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and "first”, “second”, etc. are not used to describe a specific order or sequence.
  • the object distinguished by “second” is usually a category, and the number of objects is not limited.
  • the first object can be one or more.
  • “and/or” in the specification and claims means at least one of the connected objects, and the character “/" generally means that the related objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution
  • 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
  • NR new radio
  • FIG1 is a schematic diagram of a wireless communication system applicable to an embodiment of the present application.
  • the wireless communication system shown in FIG1 includes a terminal 11 and a network side device 12.
  • the terminal 11 may 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), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR) / virtual reality (virtual reality, VR) device , robots, wearable devices (Wearable Device), vehicle user equipment (VUE), pedestrian user equipment (PUE), smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), game consoles, personal computers (personal computers, PCs), teller machines or self-service machines and other terminal side devices, wearable devices include: smart watches, smart bracelets,
  • the network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network device, a radio access network (RAN), a radio access network function or a radio access network unit.
  • the access network device may include a base station, a WLAN access point or a WiFi node, etc.
  • the base station may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home node B, a home evolved node B, a transmitting receiving point (TRP) or some other suitable term in the field.
  • eNB evolved node B
  • BTS base transceiver station
  • ESS extended service set
  • home node B a home evolved node B
  • TRP transmitting receiving point
  • the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.
  • the core network device may include but is not limited to at least one of the following: a core network node, a core network function, a mobility management entity (MME), an access mobility management function Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (L-NEF), Binding Support Function (BSF), Application Function (AF), Location Management Function (LMF), Enhanced Serving Mobile Location Centre (E-SMLC), Network Data Analytics Function (NRF), function, NWDAF), etc.
  • MME mobility management entity
  • AMF Access and Mobility Management Function
  • SMF Session Management Function
  • UPF User Plane Function
  • PCF Policy Control Function
  • PCF Policy and Charging Rules
  • SL can also be translated as sublink, side link, edge link, etc.
  • SL transmission means that the terminals (User Equipment, UE) transmit data directly on the physical layer.
  • the terminal can also transmit with the network side equipment through the uplink (Uplink, UL) and downlink (Downlink, DL).
  • FIG. 2 is a schematic diagram of the interaction between UL, DL and SL in the prior art, as shown in FIG. 2 .
  • NR SL includes the following channels:
  • PSCCH Physical sidelink control channel
  • PSSCH Physical sidelink shared channel
  • PSBCH Physical sidelink broadcast channel
  • PSSCH allocates resources in units of sub-channels, and adopts a continuous resource allocation method in the frequency domain.
  • the time domain resources of PSCCH are the number of symbols configured by the high-level layer, and the frequency domain size is a parameter configured by the high-level layer.
  • the frequency domain resource limit of PSCCH is less than or equal to the size of a sub-channel, and PSCCH is located within the range of the lowest sub-channel of PSSCH.
  • FIG 3 is a schematic diagram of PSCCH and PSSCH in sub-channels in the prior art. As shown in Figure 3, PSCCH is located within the range of the lowest sub-channel of PSSCH. In the figure, the slash area represents automatic gain control (Automatic Gain Control, AGC), the dotted area represents PSCCH, and the horizontal and vertical line areas represent guard periods (Guard Period, GP).
  • AGC Automatic Gain Control
  • GP Guard Period
  • SL UE includes two resource allocation modes, mode 1 and mode 2.
  • Mode 1 is the base station scheduling resources.
  • mode 2 the UE decides what resources to use for transmission.
  • the UE After the resource selection is triggered, the UE first determines the resource selection window.
  • the lower boundary of the resource selection window is T1 time after the resource selection is triggered, and the upper boundary of the resource selection window is T2 time after the trigger, where T2 is the value selected by the UE within the packet delay budget (PDB) transmitted in its transport block (TB), and T2 is no earlier than T1.
  • PDB packet delay budget
  • the UE Before selecting resources, the UE needs to determine the candidate resource set (candidate resource set) for resource selection, and compare the reference signal received power (RSRP) measured on the resources in the resource selection window with the corresponding RSRP threshold (threshold). If the RSRP is lower than the RSRP threshold, then the resource can be included in the candidate resource set.
  • RSRP reference signal received power
  • the UE After the resource set is determined, the UE randomly selects a transmission resource from the candidate resource set. In addition, the UE can reserve transmission resources for the next transmission during the current transmission.
  • NR SL supports a chained resource reservation method, that is, a sidelink control information (SCI) can indicate that including the current transmission resources, up to two additional resources can be reserved, and in the next resource cycle, up to three reserved resources can be indicated.
  • SCI sidelink control information
  • LBT listen before talk
  • unlicensed bands can be used as a supplement to licensed bands to help operators expand services.
  • unlicensed bands can operate in the 5GHz, 37GHz and 60GHz bands. Since unlicensed bands are shared by multiple technologies (RATs), such as WiFi, radar and Long Term Evolution-License Assisted Access (LTE-LAA), in some countries or regions, unlicensed bands must comply with regulations when used to ensure that all devices can use the resource fairly, such as LBT, maximum channel occupancy time (MCOT) and other rules.
  • RATs such as WiFi, radar and Long Term Evolution-License Assisted Access (LTE-LAA)
  • LBT Long Term Evolution-License Assisted Access
  • MCOT maximum channel occupancy time
  • a transmission node When a transmission node needs to send information, it needs to do LBT first. This process is to perform energy detection (ED) on the surrounding nodes. When the detected power is lower than a threshold, the channel is considered to be idle and the transmission node can send. Otherwise, the channel is considered to be busy and the transmission node cannot send.
  • the transmission node can be a base station, UE, WiFi AP, etc. After the transmission node starts transmitting, the channel occupancy time (COT) cannot exceed MCOT.
  • COT channel occupancy time
  • the SL resource allocation method provided in the embodiment of the present application can be applied to a terminal that needs to perform SL resource selection.
  • FIG. 4 is a flow chart of a method for allocating SL resources according to an embodiment of the present application. As shown in FIG. 4 , the method includes step 401; wherein:
  • Step 401 The terminal determines M target candidate multi-slots based on the resources in the resource selection window. Resources; wherein the M target candidate multi-slot resources are used for SL transmission, each target candidate multi-slot resource includes resources of N consecutive time slots, N is an integer greater than 1, and M is a positive integer.
  • the terminal performs SL transmission in the unlicensed spectrum, and supports continuous multi-slot transmission in order to maintain channel occupancy after obtaining the channel; however, the mode 2 resource allocation of SL in the prior art allocates resources based on single slot, which has poor matching with multi-slot transmission, and therefore it is necessary to design the mode 2 resource allocation of multi-slot.
  • the terminal can determine M target candidate multi-slot resources for SL transmission based on the resources within the resource selection window, and each target candidate multi-slot resource includes N consecutive slot resources, that is, the terminal can select N consecutive slot resources as target candidate multi-slot resources, and subsequently use the target candidate multi-slot resources for SL transmission, or use the target candidate multi-slot resources as resources to be transmitted and/or reserved resources.
  • the slot resource may include a single-slot resource.
  • the single-slot resource is defined as: every K consecutive subchannels on each slot within the resource selection window, and K subchannels are the minimum units of frequency domain detection for PSSCH resource selection;
  • the RSRP measurement of single-slot resources includes: receiving the SCI in the detection window, and measuring the RSRP of the demodulation reference signal (DMRS) associated with the PSSCH or PSCCH transmission indicated by the SCI or the PSCCH carrying the SCI.
  • DMRS demodulation reference signal
  • the terminal can determine M target candidate multi-slot resources for SL transmission based on the resources within the resource selection window, and each target candidate multi-slot resource includes N consecutive slot resources; the terminal can select N consecutive slot resources as the target candidate multi-slot resources, that is, the terminal supports multi-slot-based resource allocation, so that the terminal can use the target candidate multi-slot resources to perform multi-slot SL transmission in the unlicensed spectrum, and use multiple consecutive slot resources for transmission at the same time, effectively increasing the time-frequency resource efficiency of SL transmission.
  • the resources within the resource selection window may include at least one target resource block group (Resource Block set, RB set); the target RB set is the minimum frequency domain unit of listen before talk (LBT).
  • Target Block set Resource Block set
  • LBT listen before talk
  • the terminal can select or be configured to perform resource selection within at least one RB set, that is, it can select or be configured with at least one RB set as the frequency domain range of the resource selection window, where RB set is the minimum frequency domain unit of LBT.
  • the implementation manner in which the terminal determines M target candidate multi-slot resources based on the resources in the resource selection window may include:
  • the terminal determines X first candidate sets based on the resources in the resource selection window; each first candidate set includes at least one candidate single-slot resource, and X is a positive integer;
  • the terminal determines the M target candidate multi-slot resources from resources within the resource selection window based on the candidate single-slot resources in the first candidate set;
  • Each target candidate multi-slot resource includes at least one candidate in the first candidate set. N consecutive slots including the single-slot resource; each target candidate multi-slot resource satisfies the first condition.
  • the terminal may first determine X first candidate sets based on the resources in the resource selection window, and the terminal may obtain at least one candidate single-slot resource to form the first candidate set;
  • the terminal determines M target candidate multi-slot resources from the resources in the resource selection window based on the candidate single-slot resources in the first candidate set. Specifically, the terminal can obtain N consecutive slot resources including at least one candidate single-slot resource in the first candidate set, and if the obtained N consecutive slot resources meet the first condition, the obtained N consecutive slot resources can be used as target candidate multi-slot resources.
  • the implementation manner in which the terminal determines the M target candidate multi-slot resources from the resources within the resource selection window based on the candidate single-slot resources in the first candidate set may include:
  • Step 1 The terminal selects a first candidate single-slot resource from the first candidate set
  • Step 2 the terminal selects a first candidate multi-slot resource from the resources in the resource selection window; the first candidate multi-slot resource is N consecutive slots including the first candidate single-slot resource;
  • Step 3 The terminal determines whether the first candidate multi-slot resource satisfies a first condition; if it is determined that the first candidate multi-slot resource satisfies the first condition, the terminal determines the first candidate multi-slot resource as a target candidate multi-slot resource;
  • the terminal When the number of the determined target candidate multi-slot resources is less than M, the terminal repeatedly executes the above steps 1 to 3.
  • the terminal can first select a candidate single-slot resource in the first candidate set as the first candidate single-slot resource, and then select N consecutive slot resources including the first candidate single-slot resource from the resources in the resource selection window as the first candidate multi-slot resource, and further determine whether the first candidate multi-slot resource meets the first condition. When it is determined that the first candidate multi-slot resource meets the first condition, the terminal determines that the first candidate multi-slot resource is the target candidate multi-slot resource.
  • the terminal can repeat the above steps to obtain more target candidate multi-slot resources to meet the resource allocation requirements of the terminal.
  • the implementation manner in which the terminal determines the M target candidate multi-slot resources from the resources within the resource selection window based on the candidate single-slot resources in the first candidate set may include:
  • Step 1 The terminal selects a first candidate single-slot resource from the first candidate set
  • Step 2 the terminal selects a first candidate multi-slot resource from the resources in the resource selection window; the first candidate multi-slot resource is N consecutive slots including the first candidate single-slot resource;
  • step 1 and step 2 above Repeat step 1 and step 2 above until the first candidate multi-slot resource corresponding to each candidate single-slot resource in the first candidate set is obtained;
  • the terminal determines whether each first candidate multi-slot resource satisfies a first condition respectively; when it is determined that the first candidate multi-slot resource satisfies the first condition, the terminal determines the first candidate multi-slot resource as a target candidate multi-slot resource.
  • the terminal may first select a candidate single-slot resource in the first candidate set as the first candidate single-slot resource, and then select N consecutive slot resources including the first candidate single-slot resource from the resources in the resource selection window as the first candidate multi-slot resource;
  • the difference between this embodiment and the previous embodiment is that the above steps can be repeated until the first candidate multi-slot resources corresponding to each candidate single-slot resource in the first candidate set are obtained, and then each first candidate multi-slot resource is judged whether it meets the first condition, and the first candidate multi-slot resource that meets the first condition is used as the target candidate multi-slot resource.
  • the first condition may include at least one of the following:
  • the number of candidate single-slot resources in the first candidate multi-slot resource in the first candidate set is greater than or equal to a first number threshold
  • the proportion of candidate single-slot resources in the first candidate multi-slot resource in the first candidate set is greater than or equal to a first proportion threshold
  • the ratio of the number of candidate single-slot resources belonging to the first candidate set in the first candidate multi-slot resource to the number of single-slot resources in the first candidate multi-slot resource is greater than or equal to a second ratio threshold
  • the number of candidate single-slot resources in the first candidate multi-slot resource is 4, the number of candidate single-slot resources in the first candidate set is 10, and the number of candidate single-slot resources in the first candidate multi-slot resource that belong to the first candidate set is 2, that is, the number of candidate single-slot resources in both the first candidate multi-slot resource and the first candidate set is 2;
  • the number of single-slot resources in the first candidate multi-slot resources in the second candidate set is greater than or equal to a second number threshold
  • the proportion of single-slot resources in the first candidate multi-slot resources in the second candidate set is greater than or equal to a third proportion threshold
  • the ratio of the number of candidate single-slot resources belonging to the second candidate set in the first candidate multi-slot resources to the number of single-slot resources in the first candidate multi-slot resources is greater than or equal to a fourth ratio threshold
  • a first value of RSRP of the N single-slot resources in the first candidate multi-slot resource is less than a first signal threshold
  • the first RSRP of some single-slot resources in the N slots in the first candidate multi-slot resource The value is less than a second signal threshold
  • a first value of RSRP of any single slot resource among the N slots in the first candidate multi-slot resource is less than a third signal threshold
  • a difference between a first value of the RSRP of the first candidate multi-slot resource and the RSRP of each candidate single-slot resource in the first candidate multi-slot resource that belongs to the first candidate set is less than a fourth signal threshold;
  • a difference between a first value of the RSRP of the first candidate multi-slot resource and a first value of the RSRP of at least one candidate single-slot resource in the first candidate multi-slot resource that belongs to the first candidate set is less than a fifth signal threshold;
  • a first time interval between the first candidate multi-slot resource and at least one determined target candidate multi-slot resource satisfies a second condition
  • the second candidate set is a preset number of candidate single-slot resources in the first candidate set
  • the first value includes any one of an average value, an equivalent value, a maximum value and a minimum value.
  • the second candidate set is a preset number of candidate single-slot resources in the first candidate set.
  • the second candidate set is a preset number of candidate single-slot resources that are consecutively connected to the single-slot resources corresponding to the minimum RSRP.
  • the first number threshold, the first ratio threshold, the second ratio threshold, the second number threshold, the third ratio threshold, the fourth ratio threshold, the first signal threshold, the second signal threshold, the third signal threshold, the fourth signal threshold and the fifth signal threshold may be the same or different.
  • the second condition may include at least one of the following:
  • the first time interval is greater than or equal to the time interval for Hybrid Automatic Repeat Request (HARQ) feedback and scheduling retransmission;
  • HARQ Hybrid Automatic Repeat Request
  • the first time interval is greater than or equal to the time it takes for the terminal to perform at least one LBT.
  • the first candidate multi-slot resource and at least one target candidate multi-slot resource that meets the first condition meet the timing condition
  • the timing condition may be a time interval that meets the time interval for HARQ feedback and scheduled retransmission, for example, a time interval that is greater than or equal to the time interval for HARQ feedback and scheduled retransmission, and/or, meets the time for performing at least one LBT, for example, a time interval that is greater than or equal to the time for the terminal to perform at least one LBT.
  • the implementation manner in which the terminal determines X first candidate sets based on the resources in the resource selection window may include:
  • the terminal obtains X first thresholds
  • the terminal determines a first candidate set from the resources in the resource selection window based on each first threshold.
  • the terminal may obtain X first thresholds, and based on the first thresholds, determine a first candidate set in the resources in the resource selection window respectively, and a total of X first candidate sets may be obtained, that is, different first candidate sets may be determined according to different first thresholds.
  • the first threshold includes an RSRP threshold and/or a resource ratio value.
  • different first candidate sets may be determined according to different RSRP thresholds and/or resource ratio values.
  • one condition for ending the resource selection is: when the ratio of the selected resources to all resources in the resource selection window is greater than a certain ratio value, here we mean that there can be multiple ratio values and multiple first candidate sets can be obtained.
  • the condition for excluding a certain resource is that it is greater than the RSRP threshold.
  • the implementation manner in which the terminal selects the first candidate single-slot resource from the first candidate set may include any one of the following:
  • the terminal sorts all candidate single-slot resources in the first candidate set based on the RSRP of the candidate single-slot resources, and selects the first candidate single-slot resource as the first candidate single-slot resource;
  • the terminal randomly selects a candidate single-slot resource from all candidate single-slot resources in the first candidate set as the first candidate single-slot resource.
  • the terminal can sort all candidate single-slot resources in the first candidate set according to the RSRP measurement values corresponding to all candidate single-slot resources in the first candidate set, and select the first-ranked candidate single-slot resource as the first candidate single-slot resource, for example, select a candidate single-slot resource that is ranked at the front, back, center, or a specified position as the first candidate single-slot resource.
  • the terminal may determine a preset (eg, corresponding to the minimum RSRP) or random candidate single-slot resource as the first single-slot resource.
  • a preset eg, corresponding to the minimum RSRP
  • the implementation manner of the terminal repeatedly performing the above steps 1 to 3 may include:
  • the terminal excludes the first candidate single-slot resource from the first candidate set, or excludes the candidate single-slot resource in the first candidate multi-slot resource from the first candidate set; the terminal repeats steps 1 to 3 above.
  • the terminal can exclude the first candidate single-slot resources corresponding to the previous steps 1 to 3 from the first candidate set, or exclude each candidate single-slot resource in the first candidate multi-slot resources from the first candidate set, and repeat the above steps 1 to 3 to obtain more target candidate multi-slot resources to meet the resource allocation requirements of the terminal.
  • the terminal may not exclude the candidate single-slot resources in the first candidate set, and directly repeat the above steps 1 to 3 to obtain more target candidate multi-slot resources to meet the resource allocation requirements of the terminal.
  • the terminal when the number of determined target candidate multi-slot resources is less than M, the terminal performs the target operation
  • the target operation includes at least one of the following:
  • the terminal can perform the following target operation:
  • the first threshold may be adjusted, for example, the RSRP threshold may be increased, to reacquire the first candidate set, and performing the above steps 1 to 3;
  • step 3 adjusting at least one of the first number threshold, the second number threshold, the first ratio threshold, the second ratio threshold, the third ratio threshold and the fourth ratio threshold, for example, lowering at least one of the first number threshold, the second number threshold, the first ratio threshold, the second ratio threshold, the third ratio threshold and the fourth ratio threshold, and then starting from step 2;
  • step 2 4) adjusting at least one of the first signal threshold, the second signal threshold, the third signal threshold, the fourth signal threshold, and the fifth signal threshold, for example, increasing at least one of the first signal threshold, the second signal threshold, the third signal threshold, the fourth signal threshold, and the fifth signal threshold, and then starting from step 2;
  • Adjusting the elements of the second candidate set for example, increasing the elements of the second candidate set, can be understood as increasing the number of candidate single-slot resources included in the second candidate set, and then executing from step 2.
  • the terminal may end the resource selection.
  • the terminal selects SL resources to be transmitted and/or reserved SL resources from the M target candidate multi-slot resources.
  • the terminal may select SL resources to be transmitted and/or reserved SL resources from the determined M target candidate multi-slot resources, and the SL resources to be transmitted and/or reserved SL resources are both used for SL transmission by the terminal.
  • the implementation manner in which the terminal selects the SL resource to be transmitted and/or the reserved SL resource from the M target candidate multi-slot resources may include:
  • the terminal randomly selects SL resources to be transmitted and/or reserved SL resources from the M target candidate multi-slot resources.
  • the terminal can randomly select the resource to be transmitted and the resource to be transmitted from the M target candidate multi-slot resources obtained.
  • Reserved resources specifically, you can select SL resources to be transmitted and/or reserved SL resources.
  • the implementation manner in which the terminal selects the SL resource to be transmitted and/or the reserved SL resource from the M target candidate multi-slot resources may include:
  • the terminal performs a sorting operation on the M target candidate multi-slot resources, and selects the second ranked target candidate multi-slot resource as the SL resource to be transmitted and/or the reserved SL resource.
  • the terminal can sort the M target candidate multi-slot resources, select the second-ranked target candidate multi-slot resource as the SL resource to be transmitted and/or the reserved SL resource, for example, select the target candidate multi-slot resource ranked at the front, back, middle, or a specified position as the SL resource to be transmitted and/or the reserved SL resource.
  • the sorting operation may be based on at least one of the following:
  • any one of the first values of the RSRP of the target candidate multi-slot resource includes: any one of an average value, an equivalent value, a maximum value, and a minimum value;
  • N may satisfy at least one of the following:
  • the (layer 1) priority of the terminal transmission is related to the (layer 1) priority of the terminal transmission.
  • Each resource pool is configured with an N;
  • the following example illustrates the SL resource allocation method provided in the embodiment of the present application.
  • the terminal determines the first candidate set at the physical layer (PHY), reports it to the medium access control (MAC) layer, and performs other steps; specifically:
  • the terminal determines the first candidate set S_A at the PHY layer and reports it to the MAC layer.
  • the first S_A is determined based on RSRP threshold#1 and/or x1%*M_total
  • the second S_A is determined based on RSRP threshold#2 and/or x2%*M_total, where RSRP threshold is used
  • the threshold value compared after RSRP measurement, x% is used to determine the proportion of S_A to all resources in the resource selection window
  • M_total is the number of all candidate resources in the resource selection window, where x1% ⁇ x2% ⁇ ..., RSRP threshold#1 ⁇ RSRP threshold#2 ⁇ ....
  • the MAC layer gives priority to selecting resources in the first S_A. If the selection fails, it selects resources in the first and second S_As.
  • the terminal sorts the candidate single-slot resources in the first candidate set at the MAC layer, specifically, sorting them from small to large according to RSRP, and determines at least one first candidate multi-slot resource, each of which is the next N consecutive slots including the candidate single-slot resource;
  • N can be configured by a high-level parameter to be at least one of the following:
  • the first candidate multi-slot resource obtained is judged, and when the first condition is met, it is determined as the target candidate multi-slot resource, and the first condition includes at least one of the following:
  • the number and/or proportion of the candidate single-slot resources in the first candidate multi-slot resource in the first candidate set is greater than or equal to the second threshold.
  • the ratio of the number of candidate single-slot resources in the first candidate set in the first candidate multi-slot resource to the number of candidate single-slot resources in the first candidate multi-slot resource is greater than or equal to the third threshold.
  • the number and/or proportion of the candidate single-slot resources in the first candidate multi-slot resource in the second candidate set is greater than or equal to a fourth threshold.
  • the ratio of the number of candidate single-slot resources in the first candidate multi-slot resource that belong to the second candidate set to the number of candidate single-slot resources in the first candidate multi-slot resource is greater than or equal to the fifth threshold.
  • the second candidate set is a preset number of candidate single-slot resources in the first candidate set.
  • the second candidate set is a first number of consecutive candidate single-slot resources corresponding to the minimum RSRP.
  • the first candidate multi-slot resource and at least one target candidate multi-slot resource that meets the first condition meet the timing condition, and the timing condition is that the time interval meets the time interval for HARQ feedback and scheduling retransmission, and/or meets the time for executing at least one LBT.
  • the terminal executes the above steps at the PHY layer.
  • the terminal determines the first candidate set at the PHY layer
  • the terminal sorts the candidate single-slot resources in the first candidate set from small to large according to RSRP, and determines At least one first candidate multi-slot resource, each first candidate multi-slot resource being the next N consecutive slots including the candidate single-slot resource;
  • N can be configured by a high-level parameter to be at least one of the following:
  • the first candidate multi-slot resource obtained is judged, and when a first condition is met, it is determined as a target candidate multi-slot resource, and the first condition includes at least one of the following:
  • the number and/or proportion of the candidate single-slot resources in the first candidate multi-slot resource in the first candidate set is greater than or equal to the second threshold.
  • the ratio of the number of candidate single-slot resources in the first candidate set in the first candidate multi-slot resource to the number of candidate single-slot resources in the first candidate multi-slot resource is greater than or equal to the third threshold.
  • the number and/or proportion of the candidate single-slot resources in the first candidate multi-slot resource in the second candidate set is greater than or equal to a fourth threshold.
  • the ratio of the number of candidate single-slot resources in the first candidate multi-slot resource that belong to the second candidate set to the number of candidate single-slot resources in the first candidate multi-slot resource is greater than or equal to the fifth threshold.
  • the second candidate set is a preset number of candidate single-slot resources in the first candidate set.
  • the second candidate set is a first number of consecutive candidate single-slot resources corresponding to the minimum RSRP.
  • An average value, an equivalent value, a maximum value and/or a minimum value of the RSRP of the N candidate single-slot resources in the first candidate multi-slot resource is less than a preset first RSRP threshold.
  • a preset partial value of RSRP of N slots may be less than a preset second RSRP threshold.
  • the RSRP value of any single slot resource among the N slots may be less than the preset third RSRP threshold.
  • the first candidate multi-slot resource and at least one target candidate multi-slot resource that meets the first condition meet the timing condition, and the timing condition is that the time interval meets the time interval for HARQ feedback and scheduling retransmission, and/or meets the time for performing at least one LBT.
  • the sorting may be based on at least one of the following:
  • Multi-slot-based mode 2 resource allocation including:
  • Conditional restrictions on multi-slot resources specifically, a preset proportion of slots in the first candidate multi-slot resource are in the first candidate set S-A.
  • the terminal supports multi-slot-based resource allocation, so that multi-slot SL transmission can be performed in an unlicensed spectrum. Once LBT is successful, the terminal can continuously transmit multiple slots, thereby increasing the time-frequency resource efficiency of SL transmission.
  • the SL resource allocation method provided in the embodiment of the present application can be executed by a SL resource allocation device.
  • the SL resource allocation device executing the SL resource allocation method is taken as an example to illustrate the SL resource allocation device provided in the embodiment of the present application.
  • FIG5 is a schematic diagram of the structure of a SL resource allocation device provided in an embodiment of the present application.
  • the SL resource allocation device 500 applied to a terminal, includes:
  • a determination module 501 is used to determine M target candidate multi-slot resources based on resources in a resource selection window
  • the M target candidate multi-slot resources are used for SL transmission, and each target candidate multi-slot resource includes resources of N consecutive time slots, where N is an integer greater than 1 and M is a positive integer.
  • the determination module of the terminal can determine M target candidate multi-slot resources for SL transmission based on the resources within the resource selection window, and each target candidate multi-slot resource includes N consecutive slot resources; the terminal can select N consecutive slot resources as target candidate multi-slot resources, that is, the terminal supports multi-slot-based resource allocation, so that the terminal can use the target candidate multi-slot resources to perform multi-slot SL transmission in the unlicensed spectrum, and use multiple consecutive slot resources for transmission at the same time, effectively increasing the time-frequency resource efficiency of SL transmission.
  • the resources within the resource selection window include at least one target RB set; the target RB set is the minimum frequency domain unit of LBT.
  • the determination module 501 is specifically configured to:
  • each first candidate set includes at least one candidate single-slot resource, and X is a positive integer
  • each target candidate multi-slot resource is N consecutive slots including at least one candidate single-slot resource in the first candidate set; and each target candidate multi-slot resource satisfies the first condition.
  • the determining module 501 is further specifically configured to perform the following steps:
  • Step 1 Select a first candidate single-slot resource from the first candidate set
  • Step 2 Select a first candidate multi-slot resource from the resources in the resource selection window; the first candidate multi-slot resource is N consecutive slots including the first candidate single-slot resource;
  • Step 3 Determine whether the first candidate multi-slot resource satisfies a first condition; if it is determined that the first candidate multi-slot resource satisfies the first condition, the terminal determines the first candidate multi-slot resource as a target candidate multi-slot resource;
  • the determination module 501 is further specifically configured to, when the number of the determined target candidate multi-slot resources is less than M, repeatedly execute the above steps 1 to 3.
  • the determining module 501 is further specifically configured to perform the following steps:
  • Step 1 Select a first candidate single-slot resource from the first candidate set
  • Step 2 Select a first candidate multi-slot resource from the resources in the resource selection window; the first candidate multi-slot resource is N consecutive slots including the first candidate single-slot resource;
  • the determination module 501 is further specifically configured to:
  • step 1 and step 2 above Repeat step 1 and step 2 above until the first candidate multi-slot resource corresponding to each candidate single-slot resource in the first candidate set is obtained;
  • the first condition may include at least one of the following:
  • the number of candidate single-slot resources in the first candidate multi-slot resource in the first candidate set is greater than or equal to a first number threshold
  • the proportion of candidate single-slot resources in the first candidate multi-slot resource in the first candidate set is greater than or equal to a first proportion threshold
  • the ratio of the number of candidate single-slot resources belonging to the first candidate set in the first candidate multi-slot resource to the number of single-slot resources in the first candidate multi-slot resource is greater than or equal to a second ratio threshold
  • the number of single-slot resources in the first candidate multi-slot resources in the second candidate set is greater than or equal to a second number threshold
  • the proportion of single-slot resources in the first candidate multi-slot resources in the second candidate set is greater than or equal to a third proportion threshold
  • the ratio of the number of candidate single-slot resources belonging to the second candidate set in the first candidate multi-slot resources to the number of single-slot resources in the first candidate multi-slot resources is greater than or equal to a fourth ratio threshold
  • a first value of RSRP of the N single-slot resources in the first candidate multi-slot resource is less than a first signal threshold
  • a first value of RSRP of some single-slot resources in the N slots in the first candidate multi-slot resource is less than a second signal threshold
  • a first value of RSRP of any single slot resource among the N slots in the first candidate multi-slot resource is less than a third signal threshold
  • a difference between a first value of the RSRP of the first candidate multi-slot resource and the RSRP of each candidate single-slot resource belonging to the first candidate set in the first candidate multi-slot resource is less than a fourth signal threshold
  • a difference between a first value of the RSRP of the first candidate multi-slot resource and a first value of the RSRP of at least one candidate single-slot resource in the first candidate multi-slot resource that belongs to the first candidate set is less than a fifth signal threshold;
  • a first time interval between the first candidate multi-slot resource and at least one determined target candidate multi-slot resource satisfies a second condition
  • the second candidate set is a preset number of candidate single-slot resources in the first candidate set
  • the first value includes any one of an average value, an equivalent value, a maximum value and a minimum value.
  • the second condition may include at least one of the following:
  • the first time interval is greater than or equal to the time interval for HARQ feedback and scheduling retransmission
  • the first time interval is greater than or equal to the time it takes for the terminal to perform at least one LBT.
  • the determining module 501 is further specifically configured to:
  • a first candidate set is determined from the resources within the resource selection window.
  • the first threshold may include an RSRP threshold and/or a resource ratio value.
  • the determining module 501 is further specifically configured to perform any of the following:
  • the determining module 501 is further specifically configured to:
  • the terminal excludes the first candidate single-slot resource from the first candidate set, or excludes the candidate single-slot resource in the first candidate multi-slot resource from the first candidate set;
  • the SL resource allocation device 500 further includes a processing module, and the processing module is used to:
  • the target operation is performed
  • the target operation includes at least one of the following:
  • the processing module is further used to: select SL resources to be transmitted and/or reserved SL resources from the M target candidate multi-slot resources.
  • the processing module is further specifically used to: randomly select SL resources to be transmitted and/or reserved SL resources from the M target candidate multi-slot resources.
  • the M target candidate multi-slot resources are sorted, and the second ranked target candidate multi-slot resource is selected as the SL resource to be transmitted and/or the reserved SL resource.
  • the sorting operation may be based on at least one of the following:
  • any one of the first values of the RSRP of the target candidate multi-slot resource includes: any one of an average value, an equivalent value, a maximum value, and a minimum value;
  • N may satisfy at least one of the following:
  • Each resource pool is configured with an N;
  • the SL resource allocation device in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip.
  • the electronic device can be a terminal, or it can be other devices other than a terminal.
  • the terminal can include but is not limited to the types of terminal 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.
  • the SL resource allocation device provided in the embodiment of the present application can implement each process implemented by the method embodiment of Figure 4 and achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • FIG6 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
  • the communication device 600 includes a processor 601 and a memory 602.
  • the memory 602 stores a program or instruction that can be run on the processor 601.
  • the program or instruction is executed by the processor 601 to implement the various steps of the above-mentioned SL resource allocation method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the embodiment of the present application also provides a terminal, including a processor and a communication interface, the processor is used to determine M target candidate multi-slot multi-slot resources based on resources in a resource selection window;
  • the M target candidate multi-slot resources are used for SL transmission, and each target candidate multi-slot resource includes resources of N consecutive time slots, where N is an integer greater than 1 and M is a positive integer.
  • This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect.
  • Figure 7 is a structural diagram of the terminal provided in an embodiment of the present application.
  • the terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709 and at least some of the components of a processor 710.
  • the terminal 700 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 710 through a power management system, so as to implement functions such as managing charging, discharging, and power consumption management through the power management system.
  • a power source such as a battery
  • the terminal structure shown in FIG7 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently, which will not be described in detail here.
  • the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042, and the GPU 7041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode.
  • the display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc.
  • the user input unit 707 includes a touch panel 7071 and at least one of other input devices 7072.
  • the touch panel 7071 is also called a touch screen.
  • the touch panel 7071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.
  • the RF unit 701 can transmit the data to the processor 710 for processing; in addition, the RF unit 701 can send uplink data to the network side device.
  • the RF unit 701 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.
  • the memory 709 can be used to store software programs or instructions and various data.
  • the memory 709 can mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area can store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.).
  • the memory 709 can include a volatile memory or a non-volatile memory, or the memory 709 can include a volatile and a non-volatile memory. Both non-volatile memory.
  • the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM) or a flash memory.
  • the volatile memory can be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous connection dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM).
  • the memory 709 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.
  • the processor 710 may include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 710.
  • An embodiment of the present application also provides a readable storage medium, which may be volatile or non-volatile, and stores a program or instruction.
  • a readable storage medium which may be volatile or non-volatile, and stores a program or instruction.
  • the program or instruction is executed by a processor, the various processes of the above-mentioned SL resource allocation method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
  • the processor is the processor in the terminal described in the above embodiment.
  • the readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.
  • An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned SL resource allocation method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.
  • An embodiment of the present application further provides a computer program/program product, which is stored in a storage medium.
  • the computer program/program product is executed by at least one processor to implement the various processes of the above-mentioned SL resource allocation method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the technical solution of the present application can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.
  • a storage medium such as ROM/RAM, a magnetic disk, or an optical disk
  • a terminal which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.

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Abstract

本申请公开了一种SL资源分配方法、装置及终端，属于通信技术领域，本申请实施例的SL资源分配方法包括：终端基于资源选择窗口内的资源，确定M个目标候选多时隙multi-slot资源；其中，所述M个目标候选multi-slot资源用于SL传输，每个目标候选multi-slot资源包括连续的N个时隙slot的资源，N为大于1的整数，M为正整数。

Description

SL资源分配方法、装置及终端
交叉引用
本申请要求在2022年09月30日提交中国专利局、申请号为202211215900.9、名称为“SL资源分配方法、装置及终端”的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请属于通信技术领域，具体涉及一种SL资源分配方法、装置及终端。
背景技术
终端在非授权频谱的旁链路(sidelink，SL)传输中，为了在获得信道后可以保持信道占用，支持连续的多时隙(multi-slot)传输；
而现有技术中，SL终端的mode 2资源分配，是以单时隙(single-slot)为单位进行资源分配，对multi-slot的传输匹配性较差，进而导致SL传输的时频资源效率低。
发明内容
本申请实施例提供一种SL资源分配方法、装置及终端，能够解决SL传输的时频资源效率低的问题。
第一方面，提供了一种SL资源分配方法，该方法包括：终端基于资源选择窗口内的资源，确定M个目标候选多时隙multi-slot资源；其中，所述M个目标候选multi-slot资源用于SL传输，每个目标候选multi-slot资源包括连续的N个时隙slot的资源，N为大于1的整数，M为正整数。
第二方面，提供了一种SL资源分配装置，该装置包括：确定模块，用于基于资源选择窗口内的资源，确定M个目标候选多时隙multi-slot资源；其中，所述M个目标候选multi-slot资源用于SL传输，每个目标候选multi-slot资源包括连续的N个时隙slot的资源，N为大于1的整数，M为正整数。
第三方面，提供了一种终端，该终端包括处理器和存储器，所述存储器存储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，所述处理器用于基于资 源选择窗口内的资源，确定M个目标候选多时隙multi-slot资源；
其中，所述M个目标候选multi-slot资源用于SL传输，每个目标候选multi-slot资源包括连续的N个时隙slot的资源，N为大于1的整数，M为正整数。
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，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。
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/程序产品被存储在存储介质中，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的步骤。
在本申请实施例中，终端可以基于资源选择窗口内的资源，确定用于SL传输的M个目标候选multi-slot资源，每个目标候选multi-slot资源包括连续的N个slot的资源；终端可以选择连续的N个slot的资源，作为目标候选multi-slot资源，即终端支持基于multi-slot的资源分配，从而终端可以在非授权频谱中，利用目标候选multi-slot资源进行multi-slot的SL传输，同时利用连续的多个slot资源进行传输，有效增大了SL传输的时频资源效率。
附图说明
图1是本申请实施例可应用的无线通信系统的示意图；
图2是现有技术中UL、DL及SL的交互示意图；
图3是现有技术中PSCCH与PSSCH在子信道中的示意图；
图4是本申请实施例提供的SL资源分配方法的流程示意图；
图5是本申请实施例提供的SL资源分配装置的结构示意图；
图6是本申请实施例提供的通信设备的结构示意图；
图7是本申请实施例提供的终端的结构示意图。
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，但是这些技术也可应用于NR系统应用以外的通信系统，如第6代(6th Generation，6G)通信系统。
图1是本申请实施例可应用的无线通信系统的示意图，图1示出的无线通信系统包括终端11和网络侧设备12。其中，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)、增强现实(augmented reality，AR)/虚拟现实(virtual reality，VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(Vehicle User Equipment，VUE)、行人终端(Pedestrian User Equipment，PUE)、智能家居(具有无线通信功能的家居设备，如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(personal computer，PC)、柜员机或者自助机等终端侧设备，可穿戴式设备包括：智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。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可以包括接入网设备或核心网设备，其中，接入网设备也可以称为无线接入网设备、无线接入网(Radio Access Network，RAN)、无线接入网功能或无线接入网单元。接入网设备可以包括基站、WLAN接入点或WiFi节点等，基站可被称为节点B、演进节点B(evolved Node B，eNB)、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)、家用B节点、家用演进型B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系统中的基站为例进行介绍，并不限定基站的具体类型。核心网设备可以包含但不限于如下至少一项：核心网节点、核心网功能、移动管理实体(Mobility Management Entity，MME)、接入移动管理功能 (Access and Mobility Management Function，AMF)、会话管理功能(Session Management Function，SMF)、用户平面功能(User Plane Function，UPF)、策略控制功能(Policy Control Function，PCF)、策略与计费规则功能单元(Policy and Charging Rules Function，PCRF)、边缘应用服务发现功能(Edge Application Server Discovery Function，EASDF)、统一数据管理(Unified Data Management，UDM)，统一数据仓储(Unified Data Repository，UDR)、归属用户服务器(Home Subscriber Server，HSS)、集中式网络配置(Centralized network configuration，CNC)、网络存储功能(Network Repository Function，NRF)，网络开放功能(Network Exposure Function，NEF)、本地NEF(Local NEF，或L-NEF)、绑定支持功能(Binding Support Function，BSF)、应用功能(Application Function，AF)、位置管理功能(location manage function，LMF)、增强服务移动定位中心(Enhanced Serving Mobile Location Centre，E-SMLC)、网络数据分析功能(network data analytics function，NWDAF)等。需要说明的是，在本申请实施例中仅以NR系统中的核心网设备为例进行介绍，并不限定核心网设备的具体类型。
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SL资源分配方法、装置及终端进行详细地说明。
为了便于更加清晰地理解本申请各实施例，首先对一些相关的技术知识进行如下介绍。
一、SL的介绍
SL或译为副链路，侧链路，边链路等；SL传输，即终端(User Equipment，UE)之间直接在物理层上进行数据传输。同时，终端还可以通过上行链路(Uplink，UL)、下行链路(Downlink，DL)与网络侧设备进行传输。
图2是现有技术中UL、DL及SL的交互示意图，如图2所示。
NR SL包括如下信道：
1)物理旁链路控制信道(physical sidelink control channel，PSCCH)；
2)物理旁链路共享信道(physical sidelink shared channel，PSSCH)；
3)物理旁链路广播信道(physical sidelink broadcast channel，PSBCH)；
4)物理旁链路反馈信道(physical sidelink discovery feedback channel，PSFCH)。
其中，PSSCH以子信道为单位进行资源分配，频域上采用连续的资源分配方式。PSCCH的时域资源为高层配置的符号数，频域大小为高层配置的参数，PSCCH的频域资源限制小于或等于一个子信道的大小，PSCCH位于PSSCH的最低子信道(Sub-channel)的范围内。
图3是现有技术中PSCCH与PSSCH在子信道中的示意图，如图3所示，PSCCH位于PSSCH的最低子信道的范围内，图中，斜线区域表征自动增益控制(Automatic Gain Control，AGC)，点状区域表征PSCCH，横竖线区域表征保护时隙(Guard Period，GP)。
二、SL的资源指示
SL UE包括两种资源分配方式，mode 1和mode 2；其中，mode 1是基站调度资源， mode 2是由UE自己决定使用什么资源进行传输。
对于mode 2，具体的工作方式如下：
1)发送(Transmission，TX)UE在资源选择被触发后，首先确定资源选择窗口，资源选择窗口的时间下边界在资源选择触发后的T1时间，资源选择的时间上边界在触发后的T2时间，其中T2是通过UE实现的方式在其传输块(Transport Block，TB)传输的包延迟预算(packet delay budget，PDB)内选择的值，T2不早于T1。
2)UE在资源选择之前，需要确定资源选择的候选资源集合(candidate resource set)，根据资源选择窗口内的资源上测量的参考信号接收功率(Reference Signal Received Power，RSRP)与相应的RSRP阈值(threshold)做对比，如果RSRP低于RSRP threshold，那么该资源可以纳入候选资源集合。
3)资源集合确定后，UE随机在候选资源集合中选择传输资源。另外，UE在本次传输可以为接下来的传输预留传输资源。
NR SL支持链式的资源预留方式，也就是，一个旁链路控制信息(sidelink Control Information，SCI)可以指示包括当前的传输资源，可以再额外预留最多两个资源，在下一个资源周期内，可以再指示最多三个预留资源。
三、SL在非授权频谱的技术介绍
对于非授权频谱的SL(sidelink-unlicense，SL-U)通信，需要在发送SL数据前，通过先听后说(listen before talk，LBT)获取信道。下面对LBT技术做简要的介绍：
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，以帮助运营商对服务进行扩容。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技术(RATs)共用，例如WiFi、雷达及长期演进授权频谱辅助接入(Long Term Evolution-License Assisted Access，LTE-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LBT，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，该过程为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及WiFi AP等等。传输节点开始传输后，占用的信道占用时间(channel occupancy time，COT)不能超过MCOT。
本申请实施例提供的SL资源分配方法，可应用于需要进行SL资源选择的终端。
图4是本申请实施例提供的SL资源分配方法的流程示意图，如图4所示，该方法包括步骤401；其中：
步骤401、终端基于资源选择窗口内的资源，确定M个目标候选多时隙(multi-slot) 资源；其中，所述M个目标候选multi-slot资源用于SL传输，每个目标候选multi-slot资源包括连续的N个时隙(slot)的资源，N为大于1的整数，M为正整数。
具体地，相关技术中，终端在非授权频谱进行SL传输，为了在获得信道后可以保持信道占用，支持连续的multi-slot的传输；而现有技术SL的mode 2资源分配是以single slot为单位进行资源分配，对multi-slot的传输匹配性较差，因此需要对multi-slot的mode 2资源分配进行设计。
本申请实施例中，终端可以基于资源选择窗口内的资源，确定用于SL传输的M个目标候选multi-slot资源，每个目标候选multi-slot资源包括连续的N个slot的资源，即终端可以选择连续的N个slot的资源，作为目标候选multi-slot资源，后续可以利用目标候选multi-slot资源进行SL传输，也可以将目标候选multi-slot资源作为待传输资源和/或预留资源。
可选地，slot的资源可以包括single-slot资源。
需要说明的是，single-slot资源的定义为：资源选择窗口内的每个slot上的每K个连续子信道，K个子信道为用于PSSCH资源选择的频域检测最小单位；
还需要说明的是，single-slot资源的RSRP测量包括：接收检测窗口的SCI，根据SCI指示的PSSCH传输或承载SCI的PSCCH，对PSSCH或PSCCH关联的解调参考信号(Demodulation Reference Signal，DMRS)的RSRP进行测量。
本申请实施例提供的SL资源分配方法中，终端可以基于资源选择窗口内的资源，确定用于SL传输的M个目标候选multi-slot资源，每个目标候选multi-slot资源包括连续的N个slot的资源；终端可以选择连续的N个slot的资源，作为目标候选multi-slot资源，即终端支持基于multi-slot的资源分配，从而终端可以在非授权频谱中，利用目标候选multi-slot资源进行multi-slot的SL传输，同时利用连续的多个slot资源进行传输，有效增大了SL传输的时频资源效率。
可选地，所述资源选择窗口内的资源可以包括至少一个目标资源块组(Resource Block set，RB set)；所述目标RB set为先听后说(listen before talk，LBT)的最小频域单位。
具体地，终端可以选择或被配置在至少一个RB set内进行资源选择，即可以选择或被配置至少一个RB set作为资源选择窗口的频域范围，其中，RB set为LBT的最小频域单位。
可选地，所述终端基于资源选择窗口内的资源，确定M个目标候选multi-slot资源的实现方式可以包括：
所述终端基于所述资源选择窗口内的资源，确定X个第一候选集合；每个第一候选集合中包括至少一个候选单时隙(single-slot)资源，X为正整数；
所述终端基于所述第一候选集合中的候选single-slot资源，在所述资源选择窗口内的资源中确定所述M个目标候选multi-slot资源；
其中，每个目标候选multi-slot资源为包括所述第一候选集合中至少一个候选 single-slot资源在内的连续的N个slot；每个目标候选multi-slot资源满足第一条件。
具体地，终端可以基于资源选择窗口内的资源，先确定X个第一候选集合，具体终端可以获取至少一个候选single-slot资源，组成第一候选集合；
终端再基于第一候选集合中的候选single-slot资源，在资源选择窗口内的资源中确定M个目标候选multi-slot资源，具体终端可以获取包括第一候选集合中至少一个候选single-slot资源在内的连续的N个slot资源，且获取的连续的N个slot资源满足第一条件的情况下，可以将获取的连续的N个slot资源作为目标候选multi-slot资源。
可选地，所述终端基于所述第一候选集合中的候选single-slot资源，在所述资源选择窗口内的资源中确定所述M个目标候选multi-slot资源的实现方式可以包括：
步骤1：所述终端在所述第一候选集合中选择第一候选single-slot资源；
步骤2：所述终端在所述资源选择窗口内的资源中，选择第一候选multi-slot资源；所述第一候选multi-slot资源为包括所述第一候选single-slot资源在内的连续的N个slot；
步骤3：所述终端判断所述第一候选multi-slot资源是否满足第一条件；在判定所述第一候选multi-slot资源满足所述第一条件的情况下，所述终端确定所述第一候选multi-slot资源为目标候选multi-slot资源；
所述终端在已确定的目标候选multi-slot资源的数目小于M的情况下，重复执行上述步骤1至步骤3。
具体地，终端可以先在第一候选集合中选择一个候选single-slot资源，作为第一候选single-slot资源，再在资源选择窗口内的资源中，选择包括第一候选single-slot资源在内的连续的N个slot资源，作为第一候选multi-slot资源，进一步判断第一候选multi-slot资源是否满足第一条件，在判定第一候选multi-slot资源满足第一条件的情况下，终端确定第一候选multi-slot资源为目标候选multi-slot资源。
若终端执行上述步骤后，得到的目标候选multi-slot资源的数目不足，具体是在目标候选multi-slot资源的数目小于M的情况下，终端可以重复执行上述步骤，以获取更多的目标候选multi-slot资源，满足终端的资源分配要求。
可选地，所述终端基于所述第一候选集合中的候选single-slot资源，在所述资源选择窗口内的资源中确定所述M个目标候选multi-slot资源的实现方式可以包括：
步骤1：所述终端在所述第一候选集合中选择第一候选single-slot资源；
步骤2：所述终端在所述资源选择窗口内的资源中，选择第一候选multi-slot资源；所述第一候选multi-slot资源为包括所述第一候选single-slot资源在内的连续的N个slot；
重复执行上述步骤1和步骤2，直到获得所述第一候选集合中的每个候选single-slot资源分别对应的第一候选multi-slot资源；
所述终端分别判断每个第一候选multi-slot资源是否满足第一条件；在判定第一候选multi-slot资源满足所述第一条件的情况下，所述终端确定所述第一候选multi-slot资源为目标候选multi-slot资源。
具体地，终端可以先在第一候选集合中选择一个候选single-slot资源，作为第一候选single-slot资源，再在资源选择窗口内的资源中，选择包括第一候选single-slot资源在内的连续的N个slot资源，作为第一候选multi-slot资源；
本实施例与上一实施例的不同之处在于，可以先重复执行上述步骤，直到获得第一候选集合中的每个候选single-slot资源分别对应的第一候选multi-slot资源，再分别判断每个第一候选multi-slot资源是否满足第一条件，将满足第一条件的第一候选multi-slot资源，作为目标候选multi-slot资源。
可选地，所述第一条件可以包括以下至少一项：
1)所述第一候选multi-slot资源中的候选single-slot资源在所述第一候选集合中的数目大于或等于第一数目阈值；
2)所述第一候选multi-slot资源中的候选single-slot资源在所述第一候选集合中的比例大于或等于第一比例阈值；
举例来说，若第一候选multi-slot资源中的候选single-slot资源的数目为4，第一候选集合中的候选single-slot资源的数目为10，第一候选multi-slot资源中的候选single-slot资源在第一候选集合中的数目为2，即同时在第一候选multi-slot资源和第一候选集合中的候选single-slot资源的数目为2，则第一候选multi-slot资源中的候选single-slot资源在第一候选集合中的比例为：2/10＝0.2。
3)所述第一候选multi-slot资源中属于所述第一候选集合的候选single-slot资源的数目占所述第一候选multi-slot资源中的single-slot资源的数目的比例大于或等于第二比例阈值；
举例来说，若第一候选multi-slot资源中的候选single-slot资源的数目为4，第一候选集合中的候选single-slot资源的数目为10，第一候选multi-slot资源中属于所述第一候选集合的候选single-slot资源的数目为2，即同时在第一候选multi-slot资源和第一候选集合中的候选single-slot资源的数目为2；
则第一候选multi-slot资源中属于第一候选集合的候选single-slot资源的数目，占第一候选multi-slot资源中的single-slot资源的数目的比例为：2/4＝0.5。
4)所述第一候选multi-slot资源中的single-slot资源在第二候选集合中的数目大于或等于第二数目阈值；
5)所述第一候选multi-slot资源中的single-slot资源在第二候选集合中的比例大于或等于第三比例阈值；
6)所述第一候选multi-slot资源中属于第二候选集合的候选single-slot资源的数目占所述第一候选multi-slot资源中的single-slot资源的数目的比例大于或等于第四比例阈值；
7)所述第一候选multi-slot资源中的N个single-slot资源的RSRP的第一值小于第一信号阈值；
8)所述第一候选multi-slot资源中的N个slot中部分single-slot资源的RSRP的第一 值小于第二信号阈值；
9)所述第一候选multi-slot资源中的N个slot中的任意一个single slot资源的RSRP的第一值小于第三信号阈值；
10)所述第一候选multi-slot资源的RSRP的第一值与所述第一候选multi-slot资源中属于所述第一候选集合的每一个候选single-slot资源的RSRP之差小于第四信号阈值；
11)所述第一候选multi-slot资源的RSRP的第一值与所述第一候选multi-slot资源中属于所述第一候选集合的至少一个候选single-slot资源的RSRP的第一值之差小于第五信号阈值；
12)所述第一候选multi-slot资源与至少一个已确定的目标候选multi-slot资源的第一时间间隔满足第二条件；
其中，所述第二候选集合为所述第一候选集合中的预设数目的候选single-slot资源；
所述第一值包括：平均值、等效值、最大值及最小值中的任一项。
具体地，第二候选集合为第一候选集合中的预设数目的候选single-slot资源。可选地，第二候选集合为与最小RSRP对应的single-slot资源连续预设数目的候选single-slot资源。
可选地，第一数目阈值、第一比例阈值、第二比例阈值、第二数目阈值、第三比例阈值、第四比例阈值、第一信号阈值、第二信号阈值、第三信号阈值、第四信号阈值及第五信号阈值可以相同或不同。
可选地，所述第二条件可以包括以下至少一项：
1、所述第一时间间隔大于或等于混合自动重传请求(Hybrid Automatic Repeat Request，HARQ)反馈及调度重传的时间间隔；
2、所述第一时间间隔大于或等于所述终端执行至少一次LBT的时间。
具体地，第一候选multi-slot资源与至少一个已满足第一条件的目标候选multi-slot资源满足时序条件，时序条件可以为时间间隔满足HARQ反馈及调度重传的时间间隔，例如为时间间隔大于或等于HARQ反馈及调度重传的时间间隔，和/或，满足执行至少一次LBT的时间，例如时间间隔大于或等于终端执行至少一次LBT的时间。
可选地，所述终端基于所述资源选择窗口内的资源，确定X个第一候选集合的实现方式可以包括：
所述终端获取X个第一阈值；
所述终端基于每个第一阈值，分别在所述资源选择窗口内的资源中确定一个第一候选集合。
具体地，终端可以获取X个第一阈值，并基于第一阈值，分别在资源选择窗口内的资源中确定一个第一候选集合，共可以得到X个第一候选集合，即不同的第一候选集合可以根据不同的第一阈值确定。
可选地，所述第一阈值包括RSRP阈值和/或资源比例值。
具体地，不同的第一候选集合可以根据不同的RSRP阈值和/或资源比例值确定。
对于资源比例值来说，在资源选择过程中，结束资源选择的一个条件是：当选择的资源与资源选择窗口内的所有资源的占比大于某个比例值，这里是想说可以有多个比例值，获得多个第一候选集合。
对于RSRP阈值来说，在资源选择过程中，排除某个资源的条件是大于RSRP阈值，这里是想说确定多个RSRP阈值用于资源选择，获得多个第一候选集合。
可选地，所述终端在所述第一候选集合中选择第一候选single-slot资源的实现方式，可以包括以下任一项：
a)所述终端对所述第一候选集合中的所有候选single-slot资源，基于候选single-slot资源的RSRP进行资源排序，选择第一位次的候选single-slot资源作为所述第一候选single-slot资源；
b)所述终端在所述第一候选集合中的所有候选single-slot资源中，随机选择候选single-slot资源作为所述第一候选single-slot资源。
具体地，终端可以根据第一候选集合中的所有候选single-slot资源对应的RSRP测量值，对第一候选集合中的所有候选single-slot资源进行资源排序，选择第一位次的候选single-slot资源作为第一候选single-slot资源，例如选择排序靠前、靠后、居中、或某一指定位次的候选single-slot资源作为第一候选single-slot资源。
可选地，终端在对第一候选集合中的所有候选single-slot资源进行排序后，可以确定预设的(例如最小的RSRP对应的)或随机的候选single-slot资源，作为第一single-slot资源。
可选地，所述终端在已确定的目标候选multi-slot资源的数目小于M的情况下，重复执行上述步骤1至步骤3的实现方式可以包括：
在已确定的目标候选multi-slot资源的数目小于M的情况下，所述终端从所述第一候选集合中排除所述第一候选single-slot资源，或从所述第一候选集合中排除所述第一候选multi-slot资源中的候选single-slot资源；所述终端重复执行上述步骤1至步骤3。
具体地，终端在通过步骤1至步骤3确定的目标候选multi-slot资源的数目小于M的情况下，可以从第一候选集合中排除之前执行步骤1至步骤3对应的第一候选single-slot资源，或从在第一候选集合中排除第一候选multi-slot资源中的各候选single-slot资源，并重复执行上述步骤1至步骤3，以获取更多的目标候选multi-slot资源，满足终端的资源分配要求。
在一个实施例中，由于资源可能是动态变化的，终端也可以不排除第一候选集合中的候选single-slot资源，直接重复执行上述步骤1至步骤3，以获取更多的目标候选multi-slot资源，满足终端的资源分配要求。
可选地，在已确定的目标候选multi-slot资源的数目小于M的情况下，所述终端执行目标操作；
其中，所述目标操作包括以下至少一项：
1、执行所述终端基于所述资源选择窗口内的资源确定X个第一候选集合的步骤；
2、调整所述第一阈值；
3、调整N；
4、调整所述第一数目阈值、所述第二数目阈值、所述第一比例阈值、所述第二比例阈值、所述第三比例阈值、所述第四比例阈值、所述第一信号阈值、所述第二信号阈值、所述第三信号阈值、所述第四信号阈值、所述第五信号阈值及所述第二候选集合所包括的候选single-slot资源的数目中的至少一项；执行所述基于所述第一候选集合中的候选single-slot资源，在所述资源选择窗口内的资源中确定所述M个目标候选multi-slot资源的步骤。
具体地，在已确定的目标候选multi-slot资源的数目小于M的情况下，若第一候选集合中无法得到M个以上的目标候选multi-slot资源，即若对第一候选集合中的所有候选single-slot资源均执行上述步骤1至步骤3后，仍然无法得到M个以上的目标候选multi-slot资源，则终端可以执行以下目标操作：
1)重新获取第一候选集合，可以调整第一阈值，例如提高RSRP阈值，以重新获取第一候选集合，并执行上述步骤1至步骤3；
2)调整N的大小，例如减小N，再从步骤2开始执行；
3)调整第一数目阈值、第二数目阈值、第一比例阈值、第二比例阈值、第三比例阈值和第四比例阈值中的至少一项，例如降低第一数目阈值、第二数目阈值、第一比例阈值、第二比例阈值、第三比例阈值和第四比例阈值中的至少一项，再从步骤2开始执行；
4)调整第一信号阈值、第二信号阈值、第三信号阈值、第四信号阈值、第五信号阈值中的至少一项，例如提高第一信号阈值、第二信号阈值、第三信号阈值、第四信号阈值、第五信号阈值中的至少一项，再从步骤2开始执行；
5)调整第二候选集合的元素，例如增大第二候选集合的元素，可以理解为，增大第二候选集合所包括的候选single-slot资源的数目，再从步骤2开始执行。
可选地，终端在得到预设的数目M(大于或等于1的正整数)的目标候选multi-slot资源后，可以结束资源选择。
可选地，所述终端在所述M个目标候选multi-slot资源中，选择待传输SL资源和/或预留SL资源。
具体地，终端可以在确定的M个目标候选multi-slot资源中，选择待传输SL资源和/或预留SL资源，待传输SL资源和/或预留SL资源均用于终端进行SL传输。
可选地，所述终端在所述M个目标候选multi-slot资源中，选择待传输SL资源和/或预留SL资源的实现方式可以包括：
所述终端在所述M个目标候选multi-slot资源中，随机选择待传输SL资源和/或预留SL资源。
具体地，终端可以在得到的M个目标候选multi-slot资源中，随机选择待传输资源和 预留资源，具体可以选择待传输SL资源和/或预留SL资源。
可选地，所述终端在所述M个目标候选multi-slot资源中，选择待传输SL资源和/或预留SL资源的实现方式可以包括：
所述终端对所述M个目标候选multi-slot资源进行排序操作，选择第二位次的目标候选multi-slot资源作为待传输SL资源和/或预留SL资源。
具体地，终端可以对M个目标候选multi-slot资源进行排序操作，选择第二位次的目标候选multi-slot资源作为待传输SL资源和/或预留SL资源，例如选择排序靠前、靠后、居中、或某一指定位次的目标候选multi-slot资源作为待传输SL资源和/或预留SL资源。
可选地，所述排序操作可以基于以下至少一项：
1)目标候选multi-slot资源的RSRP的第一值中的任一项；所述第一值包括：平均值、等效值、最大值及最小值中的任一项；
2)目标候选multi-slot资源的N的数目；
3)目标候选multi-slot资源中属于所述第一候选集合的候选single-slot资源的数目；
4)目标候选multi-slot资源中属于所述第一候选集合的候选single-slot资源的数目占所述目标候选multi-slot资源中的single-slot资源的数目的比例；
5)目标候选multi-slot资源中属于所述第一候选集合的候选single-slot资源的数目占所述第一候选集合的候选single-slot资源的数目的比例。
可选地，所述N可以满足以下至少一项：
1、由高层参数配置；
2、小于或等于允许重复传输的最大次数；
3、小于或等于最多连续传输的slot的数目；
4、与终端传输的数据或信道的优先级有关；
具体地，与终端传输的(层1)优先级有关。
5、每个资源池配置一个N；
6、与LBT优先级有关；
具体地，与LBT优先级类型(LBT priority class)有关。
7、基于第一候选集合的候选single-slot资源的平均、最大或最小的RSRP、调制与编码策略(Modulation and Coding Scheme，MCS)及信道质量指示(Channel Quality Indicator，CQI)中任一项确定。
下面举例说明本申请实施例提供的SL资源分配方法。
一、终端在物理层(Physical Layer，PHY)确定第一候选集合，并上报至媒质接入控制(Medium Access Control，MAC)层，执行其他步骤；具体地：
1)终端在PHY层确定第一候选集合S_A，并上报给MAC层。
2)可选的，上报多个S_A，第一个S_A基于RSRP threshold#1和/或x1％*M_total确定，第二个S_A基于RSRP threshold#2和/或x2％*M_total确定，RSRP threshold用于 RSRP测量后比较的阈值，x％用于判断S_A占资源选择窗口的所有资源的比例，M_total为资源选择窗口的所有候选资源的数目，其中x1％<x2％<…，RSRP threshold#1<RSRP threshold#2<…。
3)可选的，MAC层优先选择第一个S_A中的资源，没选成功的话，再选择第一个和第二个S_A中的资源。
4)终端在MAC层对第一候选集合中的候选single-slot资源进行排序，具体可以根据RSRP从小到大进行排序，确定至少一个第一候选multi-slot资源，每个第一候选multi-slot资源为包括候选single-slot资源在内的往后连续N个slot；
其中，可以由高层参数配置N为以下至少一项：
i.小于或等于允许重复传输的最大次数；
ii.小于或等于最多连续传输的slot的数目；
iii.和终端传输的(层1)优先级有关；
iv.基于资源池确定；
v.和LBT priority class有关；
vi.根据RSRP、MCS及CQI等信息确定。
5)对获取的第一候选muti-slot资源进行判断，当满足第一条件，则确定为目标候选multi-slot资源，第一条件包括以下至少一项：
i.第一候选multi-slot资源中的候选single-slot资源在第一候选集合中的数目和/或比例大于或等于第二阈值。
ii.第一候选multi-slot资源中属于第一候选集合中的候选single-slot资源的数目占第一候选multi-slot资源的候选single-slot资源的数目的比例大于或等于第三阈值。
iii.第一候选multi-slot资源中的候选single-slot资源在第二候选集合中的数目和/或比例大于或等于第四阈值。
iv.第一候选multi-slot资源中属于第二候选集合中的候选single-slot资源的数目占第一候选multi-slot资源的候选single-slot资源的数目的比例大于或等于第五阈值。
可选地，第二候选集合为第一候选集合中的预设数目的候选single-slot资源。
可选地，第二候选集合为最小RSRP对应的候选single-slot资源连续的第一数目的候选single-slot资源。
v.第一候选multi-slot资源与至少一个已满足第一条件的目标候选multi-slot资源满足时序条件，时序条件为时间间隔满足HARQ反馈及调度重传的时间间隔，和/或满足执行至少一次LBT的时间。
6)在得到的目标候选multi-slot资源中随机选择待传输资源和预留资源。
二、终端在PHY层执行上述步骤。
1)终端在PHY层确定第一候选集合；
2)终端对第一候选集合中的候选single-slot资源根据RSRP从小到大进行排序，确定 至少一个第一候选multi-slot资源，每个第一候选multi-slot资源为包括候选single-slot资源在内的往后连续N个slot；
其中，可以由高层参数配置N为以下至少一项：
i.小于或等于允许重复传输的最大次数；
ii.小于或等于最多连续传输的slot的数目；
iii.和终端传输的(层1)优先级有关；
iv.基于资源池确定；
v.和LBT priority class有关；
vi.根据RSRP、MCS及CQI等信息确定。
3)对获取的第一候选muti-slot资源进行判断，当满足第一条件，则确定为目标候选multi-slot资源，第一条件包括以下至少一项：
i.第一候选multi-slot资源中的候选single-slot资源在第一候选集合中的数目和/或比例大于或等于第二阈值。
ii.第一候选multi-slot资源中属于第一候选集合中的候选single-slot资源的数目占第一候选multi-slot资源的候选single-slot资源的数目的比例大于或等于第三阈值。
iii.第一候选multi-slot资源中的候选single-slot资源在第二候选集合中的数目和/或比例大于或等于第四阈值。
iv.第一候选multi-slot资源中属于第二候选集合中的候选single-slot资源的数目占第一候选multi-slot资源的候选single-slot资源的数目的比例大于或等于第五阈值。
可选地，第二候选集合为第一候选集合中的预设数目的候选single-slot资源。
可选地，第二候选集合为最小RSRP对应的候选single-slot资源连续的第一数目的候选single-slot资源。
v.第一候选multi-slot资源中的N个候选single-slot资源的RSRP的平均值、等效值、最大值和/或最小值小于预设第一RSRP阈值。
vi.可以是N个slot的RSRP的预设部分值小于预设第二RSRP阈值。
vii.可以是N个slot中的任意一个single slot资源的RSRP值小于预设第三RSRP阈值。
viii.第一候选multi-slot资源与至少一个已满足第一条件的目标候选multi-slot资源满足时序条件，时序条件为时间间隔满足HARQ反馈及调度重传的时间间隔，和/或满足执行至少一次LBT的时间。
4)对得到的目标候选multi-slot资源进行排序，并选择排序靠前的作为待传输资源和预留资源。
可选地，排序可以基于以下至少一项：
i.目标候选multi-slot资源的RSRP的平均值、等效值、最大值和/或最小值；
ii.目标候选multi-slot资源的N的数目。
三、基于multi-slot的mode 2资源分配，包括：
1)对multi-slot资源的条件限制，具体地，为第一候选multi-slot资源中有预设比例的slot在第一候选集合中S-A中。
2)对multi-slot资源进行RSRP排序，优选RSRP小的资源。
按照现有技术的SL mode 2资源分配方法，得到的是基于single slot分配的资源，如何进一步得到multi-slot的资源需要进行设计。
本申请实施例中，终端支持基于multi-slot的资源分配，从而可以在非授权频谱的进行multi-slot的SL传输，则一旦LBT成功，则终端可以连续传输多个slot，增大了SL传输的时频资源效率。
本申请实施例提供的SL资源分配方法，执行主体可以为SL资源分配装置。本申请实施例中以SL资源分配装置执行SL资源分配方法为例，说明本申请实施例提供的SL资源分配装置。
图5是本申请实施例提供的SL资源分配装置的结构示意图，如图5所示，该SL资源分配装置500，应用于终端，包括：
确定模块501，用于基于资源选择窗口内的资源，确定M个目标候选多时隙(multi-slot)资源；
其中，所述M个目标候选multi-slot资源用于SL传输，每个目标候选multi-slot资源包括连续的N个时隙(slot)的资源，N为大于1的整数，M为正整数。
本申请实施例提供的SL资源分配装置中，终端的确定模块可以基于资源选择窗口内的资源，确定用于SL传输的M个目标候选multi-slot资源，每个目标候选multi-slot资源包括连续的N个slot的资源；终端可以选择连续的N个slot的资源，作为目标候选multi-slot资源，即终端支持基于multi-slot的资源分配，从而终端可以在非授权频谱中，利用目标候选multi-slot资源进行multi-slot的SL传输，同时利用连续的多个slot资源进行传输，有效增大了SL传输的时频资源效率。
可选地，所述资源选择窗口内的资源包括至少一个目标RB set；所述目标RB set为LBT的最小频域单位。
可选地，确定模块501具体用于：
基于所述资源选择窗口内的资源，确定X个第一候选集合；每个第一候选集合中包括至少一个候选单时隙(single-slot)资源，X为正整数；
基于所述第一候选集合中的候选single-slot资源，在所述资源选择窗口内的资源中确定所述M个目标候选multi-slot资源；
其中，每个目标候选multi-slot资源为包括所述第一候选集合中至少一个候选single-slot资源在内的连续的N个slot；每个目标候选multi-slot资源满足第一条件。
可选地，确定模块501还具体用于执行以下步骤：
步骤1：在所述第一候选集合中选择第一候选single-slot资源；
步骤2：在所述资源选择窗口内的资源中，选择第一候选multi-slot资源；所述第一候选multi-slot资源为包括所述第一候选single-slot资源在内的连续的N个slot；
步骤3：判断所述第一候选multi-slot资源是否满足第一条件；在判定所述第一候选multi-slot资源满足所述第一条件的情况下，所述终端确定所述第一候选multi-slot资源为目标候选multi-slot资源；
确定模块501还具体用于在已确定的目标候选multi-slot资源的数目小于M的情况下，重复执行上述步骤1至步骤3。
可选地，确定模块501还具体用于执行以下步骤：
步骤1：在所述第一候选集合中选择第一候选single-slot资源；
步骤2：在所述资源选择窗口内的资源中，选择第一候选multi-slot资源；所述第一候选multi-slot资源为包括所述第一候选single-slot资源在内的连续的N个slot；
确定模块501还具体用于：
重复执行上述步骤1和步骤2，直到获得所述第一候选集合中的每个候选single-slot资源分别对应的第一候选multi-slot资源；
分别判断每个第一候选multi-slot资源是否满足第一条件；在判定第一候选multi-slot资源满足所述第一条件的情况下，所述终端确定所述第一候选multi-slot资源为目标候选multi-slot资源。
可选地，所述第一条件可以包括以下至少一项：
1)所述第一候选multi-slot资源中的候选single-slot资源在所述第一候选集合中的数目大于或等于第一数目阈值；
2)所述第一候选multi-slot资源中的候选single-slot资源在所述第一候选集合中的比例大于或等于第一比例阈值；
3)所述第一候选multi-slot资源中属于所述第一候选集合的候选single-slot资源的数目占所述第一候选multi-slot资源中的single-slot资源的数目的比例大于或等于第二比例阈值；
4)所述第一候选multi-slot资源中的single-slot资源在第二候选集合中的数目大于或等于第二数目阈值；
5)所述第一候选multi-slot资源中的single-slot资源在第二候选集合中的比例大于或等于第三比例阈值；
6)所述第一候选multi-slot资源中属于第二候选集合的候选single-slot资源的数目占所述第一候选multi-slot资源中的single-slot资源的数目的比例大于或等于第四比例阈值；
7)所述第一候选multi-slot资源中的N个single-slot资源的RSRP的第一值小于第一信号阈值；
8)所述第一候选multi-slot资源中的N个slot中部分single-slot资源的RSRP的第一值小于第二信号阈值；
9)所述第一候选multi-slot资源中的N个slot中的任意一个single slot资源的RSRP的第一值小于第三信号阈值；
10)所述第一候选multi-slot资源的RSRP的第一值与所述第一候选multi-slot资源中属于所述第一候选集合的每一个候选single-slot资源的RSRP之差小于第四信号阈值；
11)所述第一候选multi-slot资源的RSRP的第一值与所述第一候选multi-slot资源中属于所述第一候选集合的至少一个候选single-slot资源的RSRP的第一值之差小于第五信号阈值；
12)所述第一候选multi-slot资源与至少一个已确定的目标候选multi-slot资源的第一时间间隔满足第二条件；
其中，所述第二候选集合为所述第一候选集合中的预设数目的候选single-slot资源；
所述第一值包括：平均值、等效值、最大值及最小值中的任一项。
可选地，所述第二条件可以包括以下至少一项：
1、所述第一时间间隔大于或等于HARQ反馈及调度重传的时间间隔；
2、所述第一时间间隔大于或等于所述终端执行至少一次LBT的时间。
可选地，确定模块501还具体用于：
获取X个第一阈值；
基于每个第一阈值，分别在所述资源选择窗口内的资源中确定一个第一候选集合。
可选地，所述第一阈值可以包括RSRP阈值和/或资源比例值。
可选地，确定模块501还具体用于执行以下任一项：
a)对所述第一候选集合中的所有候选single-slot资源，基于候选single-slot资源的RSRP进行资源排序，选择第一位次的候选single-slot资源作为所述第一候选single-slot资源；
b)在所述第一候选集合中的所有候选single-slot资源中，随机选择候选single-slot资源作为所述第一候选single-slot资源。
可选地，确定模块501还具体用于：
在已确定的目标候选multi-slot资源的数目小于M的情况下，所述终端从所述第一候选集合中排除所述第一候选single-slot资源，或从所述第一候选集合中排除所述第一候选multi-slot资源中的候选single-slot资源；
重复执行上述步骤1至步骤3。
可选地，SL资源分配装置500还包括处理模块，处理模块用于：
在已确定的目标候选multi-slot资源的数目小于M的情况下，执行目标操作；
其中，所述目标操作包括以下至少一项：
1、执行所述终端基于所述资源选择窗口内的资源确定X个第一候选集合的步骤；
2、调整所述第一阈值；
3、调整N；
4、调整所述第一数目阈值、所述第二数目阈值、所述第一比例阈值、所述第二比例阈值、所述第三比例阈值、所述第四比例阈值、所述第一信号阈值、所述第二信号阈值、所述第三信号阈值、所述第四信号阈值、所述第五信号阈值及所述第二候选集合所包括的候选single-slot资源的数目中的至少一项；执行所述基于所述第一候选集合中的候选single-slot资源，在所述资源选择窗口内的资源中确定所述M个目标候选multi-slot资源的步骤。
可选地，处理模块还用于：在所述M个目标候选multi-slot资源中，选择待传输SL资源和/或预留SL资源。
可选地，处理模块还具体用于：在所述M个目标候选multi-slot资源中，随机选择待传输SL资源和/或预留SL资源。
可选地，对所述M个目标候选multi-slot资源进行排序操作，选择第二位次的目标候选multi-slot资源作为待传输SL资源和/或预留SL资源。
可选地，所述排序操作可以基于以下至少一项：
1)目标候选multi-slot资源的RSRP的第一值中的任一项；所述第一值包括：平均值、等效值、最大值及最小值中的任一项；
2)目标候选multi-slot资源的N的数目；
3)目标候选multi-slot资源中属于所述第一候选集合的候选single-slot资源的数目；
4)目标候选multi-slot资源中属于所述第一候选集合的候选single-slot资源的数目占所述目标候选multi-slot资源中的single-slot资源的数目的比例；
5)目标候选multi-slot资源中属于所述第一候选集合的候选single-slot资源的数目占所述第一候选集合的候选single-slot资源的数目的比例。
可选地，所述N可以满足以下至少一项：
1、由高层参数配置；
2、小于或等于允许重复传输的最大次数；
3、小于或等于最多连续传输的slot的数目；
4、与终端传输的数据或信道的优先级有关；
5、每个资源池配置一个N；
6、与LBT优先级有关；
7、基于第一候选集合的候选single-slot资源的平均、最大或最小的RSRP、调制与编码策略MCS及信道质量指示CQI中任一项确定。
本申请实施例中的SL资源分配装置可以是电子设备，例如具有操作系统的电子设备，也可以是电子设备中的部件，例如集成电路或芯片。该电子设备可以是终端，也可以为除终端之外的其他设备。示例性的，终端可以包括但不限于上述所列举的终端11的类型，其他设备可以为服务器、网络附属存储器(Network Attached Storage，NAS)等，本申请实施例不作具体限定。
本申请实施例提供的SL资源分配装置能够实现图4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。
图6是本申请实施例提供的通信设备的结构示意图，如图6所示，该通信设备600，包括处理器601和存储器602，存储器602上存储有可在所述处理器601上运行的程序或指令，例如，该通信设备600为终端时，该程序或指令被处理器601执行时实现上述SL资源分配方法实施例的各个步骤，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，处理器用于基于资源选择窗口内的资源，确定M个目标候选多时隙multi-slot资源；
其中，所述M个目标候选multi-slot资源用于SL传输，每个目标候选multi-slot资源包括连续的N个时隙slot的资源，N为大于1的整数，M为正整数。该终端实施例与上述终端侧方法实施例对应，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。
图7是本申请实施例提供的终端的结构示意图，如图7所示，该终端700包括但不限于：射频单元701、网络模块702、音频输出单元703、输入单元704、传感器705、显示单元706、用户输入单元707、接口单元708、存储器709以及处理器710等中的至少部分部件。
本领域技术人员可以理解，终端700还可以包括给各个部件供电的电源(比如电池)，电源可以通过电源管理系统与处理器710逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图7中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置，在此不再赘述。
应理解的是，本申请实施例中，输入单元704可以包括图形处理单元(Graphics Processing Unit，GPU)7041和麦克风7042，GPU 7041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元706可包括显示面板7061，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7061。用户输入单元707包括触控面板7071以及其他输入设备7072中的至少一种。触控面板7071，也称为触摸屏。触控面板7071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7072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
本申请实施例中，射频单元701接收来自网络侧设备的下行数据后，可以传输给处理器710进行处理；另外，射频单元701可以向网络侧设备发送上行数据。通常，射频单元701包括但不限于天线、放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器709可用于存储软件程序或指令以及各种数据。存储器709可主要包括存储程序或指令的第一存储区和存储数据的第二存储区，其中，第一存储区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外，存储器709可以包括易失性存储器或非易失性存储器，或者，存储器709可以包括易失性和 非易失性存储器两者。其中，非易失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。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synch link DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本申请实施例中的存储器709包括但不限于这些和任意其它适合类型的存储器。
处理器710可包括一个或多个处理单元；可选的，处理器710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涉及操作系统、用户界面和应用程序等的操作，调制解调处理器主要处理无线通信信号，如基带处理器。可以理解的是，上述调制解调处理器也可以不集成到处理器710中。
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以易失性的，也可以是非易失性的，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SL资源分配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终端中的处理器。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ROM、随机存取存储器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SL资源分配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/程序产品，所述计算机程序/程序产品被存储在存储介质中，所述计算机程序/程序产品被至少一个处理器执行以实现上述SL资源分配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，或者网络设备等)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 (20)

  1. 一种旁链路SL资源分配方法，包括：
    终端基于资源选择窗口内的资源，确定M个目标候选多时隙multi-slot资源；
    其中，所述M个目标候选multi-slot资源用于SL传输，每个目标候选multi-slot资源包括连续的N个时隙slot的资源，N为大于1的整数，M为正整数。
  2. 根据权利要求1所述的SL资源分配方法，其中，所述资源选择窗口内的资源包括至少一个目标资源块组RB set；所述目标RB set为先听后说LBT的最小频域单位。
  3. 根据权利要求1或2所述的SL资源分配方法，其中，所述终端基于资源选择窗口内的资源，确定M个目标候选multi-slot资源，包括：
    所述终端基于所述资源选择窗口内的资源，确定X个第一候选集合；每个第一候选集合中包括至少一个候选单时隙single-slot资源，X为正整数；
    所述终端基于所述第一候选集合中的候选single-slot资源，在所述资源选择窗口内的资源中确定所述M个目标候选multi-slot资源；
    其中，每个目标候选multi-slot资源为包括所述第一候选集合中至少一个候选single-slot资源在内的连续的N个slot；每个目标候选multi-slot资源满足第一条件。
  4. 根据权利要求3所述的SL资源分配方法，其中，所述终端基于所述第一候选集合中的候选single-slot资源，在所述资源选择窗口内的资源中确定所述M个目标候选multi-slot资源，包括：
    步骤1：所述终端在所述第一候选集合中选择第一候选single-slot资源；
    步骤2：所述终端在所述资源选择窗口内的资源中，选择第一候选multi-slot资源；所述第一候选multi-slot资源为包括所述第一候选single-slot资源在内的连续的N个slot；
    步骤3：所述终端判断所述第一候选multi-slot资源是否满足第一条件；在判定所述第一候选multi-slot资源满足所述第一条件的情况下，所述终端确定所述第一候选multi-slot资源为目标候选multi-slot资源；
    所述终端在已确定的目标候选multi-slot资源的数目小于M的情况下，重复执行上述步骤1至步骤3。
  5. 根据权利要求3所述的SL资源分配方法，其中，所述终端基于所述第一候选集合中的候选single-slot资源，在所述资源选择窗口内的资源中确定所述M个目标候选multi-slot资源，包括：
    步骤1：所述终端在所述第一候选集合中选择第一候选single-slot资源；
    步骤2：所述终端在所述资源选择窗口内的资源中，选择第一候选multi-slot资源；所述第一候选multi-slot资源为包括所述第一候选single-slot资源在内的连续的N个slot；
    重复执行上述步骤1和步骤2，直到获得所述第一候选集合中的每个候选single-slot资源分别对应的第一候选multi-slot资源；
    所述终端分别判断每个第一候选multi-slot资源是否满足第一条件；在判定第一候选 multi-slot资源满足所述第一条件的情况下，所述终端确定所述第一候选multi-slot资源为目标候选multi-slot资源。
  6. 根据权利要求3至5任一项所述的SL资源分配方法，其中，所述第一条件包括以下至少一项：
    所述第一候选multi-slot资源中的候选single-slot资源在所述第一候选集合中的数目大于或等于第一数目阈值；
    所述第一候选multi-slot资源中的候选single-slot资源在所述第一候选集合中的比例大于或等于第一比例阈值；
    所述第一候选multi-slot资源中属于所述第一候选集合的候选single-slot资源的数目占所述第一候选multi-slot资源中的single-slot资源的数目的比例大于或等于第二比例阈值；
    所述第一候选multi-slot资源中的single-slot资源在第二候选集合中的数目大于或等于第二数目阈值；
    所述第一候选multi-slot资源中的single-slot资源在第二候选集合中的比例大于或等于第三比例阈值；
    所述第一候选multi-slot资源中属于第二候选集合的候选single-slot资源的数目占所述第一候选multi-slot资源中的single-slot资源的数目的比例大于或等于第四比例阈值；
    所述第一候选multi-slot资源中的N个single-slot资源的参考信号接收功率RSRP的第一值小于第一信号阈值；
    所述第一候选multi-slot资源中的N个slot中部分single-slot资源的RSRP的第一值小于第二信号阈值；
    所述第一候选multi-slot资源中的N个slot中的任意一个single slot资源的RSRP的第一值小于第三信号阈值；
    所述第一候选multi-slot资源的RSRP的第一值与所述第一候选multi-slot资源中属于所述第一候选集合的每一个候选single-slot资源的RSRP之差小于第四信号阈值；
    所述第一候选multi-slot资源的RSRP的第一值与所述第一候选multi-slot资源中属于所述第一候选集合的至少一个候选single-slot资源的RSRP的第一值之差小于第五信号阈值；
    所述第一候选multi-slot资源与至少一个已确定的目标候选multi-slot资源的第一时间间隔满足第二条件；
    其中，所述第二候选集合为所述第一候选集合中的预设数目的候选single-slot资源；
    所述第一值包括：平均值、等效值、最大值及最小值中的任一项。
  7. 根据权利要求6所述的SL资源分配方法，其中，所述第二条件包括以下至少一项：
    所述第一时间间隔大于或等于混合自动重传请求HARQ反馈及调度重传的时间间隔；
    所述第一时间间隔大于或等于所述终端执行至少一次LBT的时间。
  8. 根据权利要求3至7任一项所述的SL资源分配方法，其中，所述终端基于所述资 源选择窗口内的资源，确定X个第一候选集合，包括：
    所述终端获取X个第一阈值；
    所述终端基于每个第一阈值，分别在所述资源选择窗口内的资源中确定一个第一候选集合。
  9. 根据权利要求8所述的SL资源分配方法，其中，所述第一阈值包括RSRP阈值和/或资源比例值。
  10. 根据权利要求4或5所述的SL资源分配方法，其中，所述终端在所述第一候选集合中选择第一候选single-slot资源，包括以下任一项：
    所述终端对所述第一候选集合中的所有候选single-slot资源，基于候选single-slot资源的RSRP进行资源排序，选择第一位次的候选single-slot资源作为所述第一候选single-slot资源；
    所述终端在所述第一候选集合中的所有候选single-slot资源中，随机选择候选single-slot资源作为所述第一候选single-slot资源。
  11. 根据权利要求4所述的SL资源分配方法，其中，所述终端在已确定的目标候选multi-slot资源的数目小于M的情况下，重复执行上述步骤1至步骤3，包括：
    在已确定的目标候选multi-slot资源的数目小于M的情况下，所述终端从所述第一候选集合中排除所述第一候选single-slot资源，或从所述第一候选集合中排除所述第一候选multi-slot资源中的候选single-slot资源；所述终端重复执行上述步骤1至步骤3。
  12. 根据权利要求3、6或8所述的SL资源分配方法，其中，所述方法还包括：
    在已确定的目标候选multi-slot资源的数目小于M的情况下，所述终端执行目标操作；
    其中，所述目标操作包括以下至少一项：
    执行所述终端基于所述资源选择窗口内的资源确定X个第一候选集合的步骤；
    调整所述第一阈值；
    调整N；
    调整所述第一数目阈值、所述第二数目阈值、所述第一比例阈值、所述第二比例阈值、所述第三比例阈值、所述第四比例阈值、所述第一信号阈值、所述第二信号阈值、所述第三信号阈值、所述第四信号阈值、所述第五信号阈值及所述第二候选集合所包括的候选single-slot资源的数目中的至少一项；执行所述基于所述第一候选集合中的候选single-slot资源，在所述资源选择窗口内的资源中确定所述M个目标候选multi-slot资源的步骤。
  13. 根据权利要求1至12任一项所述的SL资源分配方法，其中，所述方法还包括：
    所述终端在所述M个目标候选multi-slot资源中，选择待传输SL资源和/或预留SL资源。
  14. 根据权利要求13所述的SL资源分配方法，其中，所述终端在所述M个目标候选multi-slot资源中，选择待传输SL资源和/或预留SL资源，包括：
    所述终端在所述M个目标候选multi-slot资源中，随机选择待传输SL资源和/或预留 SL资源。
  15. 根据权利要求13所述的SL资源分配方法，其中，所述终端在所述M个目标候选multi-slot资源中，选择待传输SL资源和/或预留SL资源，包括：
    所述终端对所述M个目标候选multi-slot资源进行排序操作，选择第二位次的目标候选multi-slot资源作为待传输SL资源和/或预留SL资源。
  16. 根据权利要求15所述的SL资源分配方法，其中，所述排序操作基于以下至少一项：
    目标候选multi-slot资源的RSRP的第一值中的任一项；所述第一值包括：平均值、等效值、最大值及最小值中的任一项；
    目标候选multi-slot资源的N的数目；
    目标候选multi-slot资源中属于所述第一候选集合的候选single-slot资源的数目；
    目标候选multi-slot资源中属于所述第一候选集合的候选single-slot资源的数目占所述目标候选multi-slot资源中的single-slot资源的数目的比例；
    目标候选multi-slot资源中属于所述第一候选集合的候选single-slot资源的数目占所述第一候选集合的候选single-slot资源的数目的比例。
  17. 根据权利要求1至16任一项所述的SL资源分配方法，其中，所述N满足以下至少一项：
    由高层参数配置；
    小于或等于允许重复传输的最大次数；
    小于或等于最多连续传输的slot的数目；
    与终端传输的数据或信道的优先级有关；
    每个资源池配置一个N；
    与LBT优先级有关；
    基于第一候选集合的候选single-slot资源的平均、最大或最小的RSRP、调制与编码策略MCS及信道质量指示CQI中任一项确定。
  18. 一种旁链路SL资源分配装置，包括：
    确定模块，用于基于资源选择窗口内的资源，确定M个目标候选多时隙multi-slot资源；
    其中，所述M个目标候选multi-slot资源用于SL传输，每个目标候选multi-slot资源包括连续的N个时隙slot的资源，N为大于1的整数，M为正整数。
  19. 一种终端，包括处理器和存储器，所述存储器存储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权利要求1至17任一项所述的旁链路SL资源分配方法的步骤。
  20. 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权利要求1至17任一项所述的旁链路SL资源分配方法的步骤。
PCT/CN2023/121504 2022-09-30 2023-09-26 Sl资源分配方法、装置及终端 Ceased WO2024067573A1 (zh)

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