WO2023102791A1 - 资源排除方法、装置、终端、存储介质及程序产品 - Google Patents

资源排除方法、装置、终端、存储介质及程序产品 Download PDF

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Publication number
WO2023102791A1
WO2023102791A1 PCT/CN2021/136592 CN2021136592W WO2023102791A1 WO 2023102791 A1 WO2023102791 A1 WO 2023102791A1 CN 2021136592 W CN2021136592 W CN 2021136592W WO 2023102791 A1 WO2023102791 A1 WO 2023102791A1
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Prior art keywords
resource
resource set
terminal device
resources
value
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PCT/CN2021/136592
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English (en)
French (fr)
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丁伊
张世昌
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Oppo广东移动通信有限公司
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Priority to PCT/CN2021/136592 priority Critical patent/WO2023102791A1/zh
Publication of WO2023102791A1 publication Critical patent/WO2023102791A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]

Definitions

  • the embodiments of the present application relate to the technical field of communications, and in particular, to a resource exclusion method, device, terminal, storage medium, and program product.
  • the terminal device can select transmission resources from the resource pool by listening.
  • the current standard further optimizes the SL communication mode in which terminal devices select autonomous resources through listening, and proposes an SL communication mode in which terminal devices cooperate to select resources.
  • further research is needed on some details of resource selection in cooperation between terminal devices.
  • Embodiments of the present application provide a resource exclusion method, device, terminal, storage medium, and program product. Described technical scheme is as follows:
  • a resource exclusion method is provided, the method is executed by a first terminal device, and the method includes:
  • the first excluding operation includes the first terminal device performing resource exclusion according to the received resource set.
  • a resource exclusion method is provided, the method is executed by a first terminal device, and the method includes:
  • the first exclusion operation includes the first The terminal device performs resource exclusion according to the received resource set
  • the second exclusion operation includes that the first terminal device performs resource exclusion according to an unheard time slot and/or performs resource exclusion according to a resource interception result
  • the first The conditions include at least one of the following: the number of resources in the candidate resource set after the second exclusion operation satisfies a first subcondition, and the number of resources in the received resource set satisfies a second subcondition.
  • a device for resource exclusion includes:
  • a processing module configured to set the candidate resource set as before the first exclusion operation if the number of resources in the candidate resource set is less than or equal to a first value after performing the first exclusion operation on the candidate resource set the candidate resource set, or put the resources excluded in the first excluding operation into the candidate resource set; wherein the first excluding operation includes the first terminal device performing resource exclusion according to the received resource set.
  • a device for resource exclusion includes:
  • a processing module configured to perform a first exclusion operation on the candidate resource set after the second exclusion operation if the first condition is met after performing the second exclusion operation on the candidate resource set; wherein, the first exclusion operation It includes that the first terminal device performs resource exclusion according to the received resource set, and the second exclusion operation includes that the first terminal device performs resource exclusion according to an unlistened time slot and/or performs resource exclusion according to a resource interception result;
  • the first condition includes at least one of the following: the number of resources in the candidate resource set after the second exclusion operation satisfies a first subcondition, and the number of resources in the received resource set satisfies a second subcondition.
  • a terminal device includes a processor and a memory, a computer program is stored in the memory, and the processor executes the computer program to implement the resource exclusion method described above .
  • a computer-readable storage medium where a computer program is stored in the storage medium, and the computer program is used to be executed by a processor, so as to implement the resource exclusion method above.
  • a chip is provided, and the chip includes a programmable logic circuit and/or program instructions, which are used to implement the above resource exclusion method when the chip is running.
  • a computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and a processor reads from the The computer-readable storage medium reads and executes the computer instructions, so as to realize the above resource exclusion method.
  • the RSRP threshold caused by the introduction of the first exclusion operation is solved multiple times
  • the infinite loop problem raised or caused helps to shorten the time-consuming of the entire resource exclusion process and improve the efficiency of the resource exclusion process.
  • FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a physical layer structure of SL communication provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of time-frequency resource position reservation provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of resource interception and resource selection provided by an embodiment of the present application.
  • FIG. 5 is a flow chart of cooperative resource selection between terminal devices provided by an embodiment of the present application.
  • FIG. 6 is a flow chart of a resource exclusion method provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a resource exclusion process provided by an embodiment of the present application.
  • FIG. 8 is a flowchart of a resource exclusion method provided by another embodiment of the present application.
  • FIG. 9 is a flow chart of a resource exclusion method provided by another embodiment of the present application.
  • FIG. 10 is a flow chart of a resource exclusion method provided by another embodiment of the present application.
  • Fig. 11 is a block diagram of a resource exclusion device provided by an embodiment of the present application.
  • Fig. 12 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • the network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application.
  • the evolution of the technology and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.
  • FIG. 1 shows a schematic diagram of a network architecture provided by an embodiment of the present application.
  • the network architecture may include: a core network 11 , an access network 12 and a terminal device 13 .
  • the core network 11 includes several core network devices.
  • the functions of the core network equipment are mainly to provide user connections, manage users, and carry out services, and provide an interface to the external network as a bearer network.
  • the core network of the 5G (5th Generation, fifth-generation mobile communication technology) NR (New Radio, new air interface) system may include AMF (Access and Mobility Management Function, access and mobility management function) entities, UPF (User Plane Function, user plane function) entity and SMF (Session Management Function, session management function) entity and other devices.
  • AMF Access and Mobility Management Function, access and mobility management function
  • UPF User Plane Function
  • user plane function User Plane Function
  • SMF Session Management Function, session management function
  • the access network 12 includes several access network devices 14.
  • the access network in the 5G NR system may be called NG-RAN (New Generation-Radio Access Network, New Generation Radio Access Network).
  • the access network device 14 is a device deployed in the access network 12 to provide a wireless communication function for the terminal device 13 .
  • the access network device 14 may include various forms of macro base stations, micro base stations, relay stations, access points and so on.
  • the names of devices with access network device functions may be different.
  • they are called gNodeB or gNB.
  • the name "access network equipment” may change.
  • the above-mentioned devices that provide the wireless communication function for the terminal device 13 are collectively referred to as access network devices.
  • the number of terminal devices 13 is generally multiple, and one or more terminal devices 13 may be distributed in a cell managed by each access network device 14 .
  • the terminal device 13 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of user equipment, mobile stations (Mobile Station, MS) etc.
  • the devices mentioned above are collectively referred to as terminal devices.
  • the access network device 14 and the core network device communicate with each other through some air technology, such as the NG interface in the 5G NR system.
  • the access network device 14 and the terminal device 13 communicate with each other through some air technology, such as Uu interface.
  • the terminal device 13 and the terminal device 13 can communicate with each other through a direct connection communication interface (such as PC5 interface) , correspondingly, the communication link established based on the direct communication interface may be called a direct link or SL.
  • SL transmission is the direct communication data transmission between terminal devices through sidelinks. Unlike traditional cellular systems where communication data is received or sent through access network devices, SL transmission has short delay and low overhead.
  • the terminal device in this application refers to any device that communicates using the SL technology.
  • the "5G NR system" in the embodiments of the present disclosure may also be called a 5G system or an NR system, but those skilled in the art can understand its meaning.
  • the technical solution described in the embodiments of the present disclosure can be applied to the 5G NR system, and can also be applied to the subsequent evolution system of the 5G NR system.
  • 3GPP defines two transmission modes: Mode A and Mode B.
  • the transmission resource of the terminal device is allocated by the access network device (such as a base station), and the terminal device transmits communication data on the sidelink according to the transmission resources allocated by the access network device.
  • the access network device such as a base station
  • the transmission resources for a single transmission can be allocated to the terminal device, and the transmission resources for semi-static transmission can also be allocated to the terminal device.
  • Mode B The terminal device selects transmission resources from the resource pool to transmit communication data. Specifically, the terminal device may select transmission resources from the resource pool by listening, or select transmission resources from the resource pool by random selection.
  • PSCCH Physical Sidelink Control Channel, physical sidelink control channel
  • PSSCH Physical Sidelink Shared Channel, physical sidelink shared channel
  • PSCCH and PSSCH are sent in the same slot.
  • the above-mentioned first lateral control information and second lateral control information may be two lateral control information with different functions.
  • the first sideline control information is carried in the PSCCH, which mainly includes domains related to resource interception, so that other terminal devices can perform resource exclusion and resource selection after decoding.
  • the PSSCH also carries second sidelink control information.
  • the second sidelink control information mainly includes fields related to data demodulation, so as to facilitate other terminal devices to demodulate data in the PSSCH.
  • the terminal device selects the transmission resources to send data by itself.
  • Resource reservation is the premise of resource selection.
  • resource reservation within a TB Transport Block
  • resource reservation between TBs is supported as well as resource reservation between TBs.
  • the terminal device sends the first sideline control information, and uses the "Time resource assignment (time resource assignment)" and "Frequency resource assignment (frequency resource assignment)" fields to indicate the N time-frequency resources of the current TB (including resources currently used for sending).
  • Nmax is equal to 2 or 3.
  • the above N indicated time-frequency resources should be distributed in W time slots.
  • W is equal to 32.
  • the terminal device sends the first sidelink control information in the PSCCH while sending the initial transmission data on the PSSCH, and uses the above two fields to indicate the time-frequency resource positions of the initial transmission and retransmission 1 (i.e.
  • the initial transmission and the retransmission 1 are distributed in 32 time slots in the time domain.
  • the terminal device uses the first sideline control information sent in the PSCCH of retransmission 1 to indicate the time-frequency resource positions of retransmission 1 and retransmission 2, and retransmission 1 and retransmission 2 It is distributed in 32 time slots in the time domain.
  • the "Resource reservation period (resource reservation period)" field is used to reserve resources between TBs.
  • the terminal device uses the "Time resource assignment” and “Frequency resource assignment” fields to indicate the time-frequency resource positions of the initial transmission and retransmission 1 of TB1, record is ⁇ (t 1 , f 1 ), (t 2 , f 2 ) ⁇ .
  • t 1 and t 2 represent the time domain positions of TB1 initial transmission and retransmission 1 resources
  • f 1 and f 2 represent corresponding frequency domain positions.
  • the SCI (Sidelink Control Information, sidelink control information) also indicates the time-frequency resource ⁇ (t1+100, f1), (t2+100, f2) ⁇ , these two resources are used for the transmission of TB2 initial transmission and retransmission 1.
  • the first sideline control information sent in TB1 retransmission 1 also uses the "Resource reservation period" field to reserve the time-frequency resources of TB2 retransmission 1 and retransmission 2.
  • the possible values of the "Resource reservation period" field are 0, 1-99, 100, 200, 300, 400, 500, 600, 700, 800, 900, and 1000 milliseconds.
  • V2X is more flexible.
  • e values are configured, and the terminal device determines possible values according to the used resource pool.
  • the value of e in the resource pool configuration is the resource reservation period set M, for example, e is less than or equal to 16.
  • the above-mentioned inter-TB reservation can be activated or deactivated in units of resource pools.
  • the "Resource reservation period" field is included in the first side line control information.
  • the inter-TB reservation is deactivated, the "Resource reservation period” field is not included in the first side line control information.
  • the value of the "Resource reservation period” field used by the terminal device, that is, the resource reservation period will not change.
  • the control information on one side uses the "Resource reservation period” field to reserve the resources of the next period for the transmission of another TB, so as to achieve periodic semi-persistent transmission.
  • the terminal device can obtain the first sidelink control information sent by other terminal devices by listening to the PSCCH sent by other terminal devices, so as to know the resources reserved by other terminal devices.
  • the terminal device selects resources, it will exclude resources reserved by other terminal devices, thereby avoiding resource collisions.
  • the terminal device In the NR V2X system, in the above mode B, the terminal device needs to select resources by itself.
  • the terminal device triggers resource selection or reselection at time slot n or time slot n is the time slot where the upper layer triggers the physical layer to report the candidate resource set.
  • the terminal device determines T 2min from the value set according to the priority of its own data to be sent. For example, when the subcarrier interval is 15kHz, the terminal device determines T 2min from the set ⁇ 1, 5, 10, 20 ⁇ according to the priority of its data to be sent.
  • T 2min is greater than or equal to the remaining delay budget of the service
  • T 2 is equal to the remaining delay budget of the service.
  • the remaining delay budget is the difference between the time corresponding to the data delay requirement and the current time.
  • the delay requirement is 50 milliseconds.
  • a time slot is 1 millisecond. If the current time is time slot n, the remaining delay budget is 50 milliseconds. If the current time is time slot n+20 , the remaining delay budget is 30 milliseconds.
  • the terminal device performs resource monitoring from nT 0 to nT proc,0 (nT proc,0 is not included), and the value of T 0 is 100 or 1100 milliseconds.
  • T proc,0 is 1, 1, 2, 4 time slots.
  • the terminal device performs resource monitoring in the time slots belonging to the resource pool it uses within the resource monitoring window.
  • the terminal device listens to the first sideline control information sent by other terminal devices in each time slot (except its own sending time slot). When time slot n triggers resource selection or reselection, the terminal device uses nT 0 To nT proc,0 resource listening results.
  • Step 1 The terminal device takes all the available resources belonging to the resource pool used by the terminal device within the resource selection window 10 as the resource set A, and any resource in the set A is denoted as R(x, y), and x and y indicate the frequency of the resource respectively. domain location and time domain location. Note that the initial quantity of resources in collection A is M total .
  • the terminal device judges whether the resource R(x, y) or a series of periodic resources corresponding to the resource R(x, y) is the same as the time slot determined in Step 1-1 according to the unlistened time slot or in Step 1-2 according to The resources determined by the intercepted first lateral control information overlap, and if they overlap, the resource R(x,y) is excluded from the resource set A.
  • Cresel is related to the random count value generated by the terminal equipment
  • Ptxlg is the number after converting Ptx into logical time slots.
  • Ptx is the resource reservation period of the terminal device. For example, in sub-figure (a) of FIG. 4 , the case where Cresel is 3 indicates 3 periodic resources (including R(x, y)) corresponding to resource R(x, y).
  • Prx ⁇ Tscal and/or n1-m is less than or equal to Prxlg
  • Prxlg is the number of Prx converted into logical time slots. If time slot n is in the resource pool used by the terminal device, then n1 is n, otherwise n1 is the first time slot after n that belongs to the resource pool used by the terminal device.
  • the Q time slots are m+q*Prxlg, where q is 1, 2...Q.
  • the above calculation determines the time slot corresponding to y+j*Ptxlg or m+q*Prxlg, it is determined in the resource pool used by the terminal device.
  • the terminal device will judge whether the Q time slots corresponding to each reserved period overlap with the resource R(x, y) or a series of periodic resources corresponding to the resource R(x, y). A resource R(x,y) is excluded from A.
  • the terminal device may not perform the above Step 1-1.
  • Step 1-1 if the remaining resources in resource set A are less than M total *X, then initialize resource set A to all available resources in the resource selection window 10 that belong to the resource pool used by the terminal device and then execute Step 1 -2.
  • Step 1-2 If the terminal device detects the first sidelink control information transmitted in the PSCCH within the time slot m of the resource listening window 20, measure the SL-RSRP (Sidelink Reference Signal Received Power, sidelink reference) of the PSCCH signal received power) or the SL-RSRP of the PSSCH scheduled by the PSCCH (that is, the SL-RSRP of the PSSCH transmitted in the same time slot as the PSCCH).
  • SL-RSRP Systemlink Reference Signal Received Power, sidelink reference
  • the terminal device will reserve resources according to time slot m and the detected first sideline control information.
  • the resource reservation period is used as an interval to determine corresponding Q time slots. The terminal device assumes that it has also received the first sideline control information with the same content in the Q time slots.
  • T scal is equal to the value after converting T 2 into milliseconds.
  • P rx is the resource reservation period carried in the sensed first sideline control information.
  • Cresel is related to the random count value generated by the terminal equipment
  • Ptxlg is the number after converting Ptx into logical time slots.
  • Ptx is the resource reservation period of the terminal device.
  • the case where Cresel is 3 indicates 3 periodic resources (including R(x, y)) corresponding to resource R(x, y).
  • Prx ⁇ Tscal and/or n1-m is less than or equal to Prxlg
  • Prxlg is the number of Prx converted into logical time slots. If time slot n is in the resource pool used by the terminal device, then n1 is n, otherwise n1 is the first time slot after n that belongs to the resource pool used by the terminal device.
  • the Q time slots are m+q*Prxlg, where q is 1, 2...Q.
  • the above calculation determines the time slot corresponding to y+j*Ptxlg or m+q*Prxlg, it is determined in the resource pool used by the terminal device.
  • the terminal device when the resource pool used by the terminal device activates the reservation between TBs, if the terminal device detects the first sideline control in the PSCCH on the resource E(v,m) of time slot m information, the resource reservation period in the first sideline control information is P rx , assuming that the Q value is calculated as 1, the terminal device will assume that the first sideline control information with the same content is also received on the time slot m+P rx .
  • the terminal device will judge the first sideline control information received in time slot m and the "Time resource assignment" and “Frequency resource assignment” field indications of the first sideline control information received in time slot m+P rx Whether resources 1, 2, 3, 4, 5, 6 overlap with resource R(x, y) or a series of periodic resources corresponding to resource R(x, y), if they overlap and satisfy the RSRP condition, start from resource set A Exclude resource R(x,y) in .
  • the terminal device If the SL-RSRP measured by the terminal device is greater than the SL-RSRP threshold, and the resource pool used by the terminal device deactivates resource reservation between TBs, the terminal device only judges the "Time resource assignment" and "Frequency resource assignment" fields indicate whether the resource overlaps with the resource R(x,y) or a series of resources corresponding to the resource R(x,y), and if so, excludes the resource R from the resource set A( x,y).
  • the terminal device when the resource pool used by the terminal device deactivates the inter-TB reservation, if the terminal device detects the first side row in the PSCCH on the resource E(v,m) of time slot m control information, the terminal device judges that resources 1, 2, and 3 indicated by the fields "Time resource assignment” and "Frequency resource assignment" in the first side line control information are related to resource R(x, y) or resource R(x, y) Whether the corresponding series of periodic resources overlap. If they overlap and satisfy the RSRP condition, the resource R(x,y) is excluded from the resource set A.
  • resource set A If the remaining resources in resource set A are less than M total *X after the above resources are excluded, raise the SL-RSRP threshold by 3dB and execute Step 1 again.
  • the physical layer reports the resource set A after resource exclusion as a candidate resource set to the upper layer.
  • Step 2 The upper layer randomly selects resources from the reported candidate resource set to send data. That is, the terminal device randomly selects a resource from the candidate resource set to send data.
  • the above RSRP threshold is determined by the priority P1 carried in the PSCCH sensed by the terminal device and the priority P2 of the data to be sent by the terminal device.
  • the configuration of the resource pool used by the terminal device includes an SL-RSRP threshold table, and the SL-RSRP threshold table includes SL-RSRP thresholds corresponding to all priority combinations.
  • the configuration of the resource pool can be network configuration or pre-configuration.
  • the SL-RSRP thresholds corresponding to different priority combinations are denoted by ⁇ ij , where i in ⁇ ij is priority j is the value of the priority level P1, and j is the value of the priority level P2.
  • the terminal device When the terminal device detects the PSCCH sent by other terminal devices, obtains the priority P1 carried in the first sidelink control information transmitted in the PSCCH and the priority P2 of the data to be sent, and the terminal device determines the SL by looking up table 1 - RSRP threshold.
  • the terminal device uses the measured PSCCH-RSRP or the PSSCH-RSRP scheduled by the PSCCH to compare with the SL-RSRP threshold depends on the resource pool configuration of the resource pool used by the terminal device.
  • the configuration of the resource pool can be network configuration or pre-configuration.
  • the above X, the possible values of X are ⁇ 20%, 35%, 50% ⁇ .
  • the configuration of the resource pool used by the terminal device includes the corresponding relationship between the priority and the above possible values, and the terminal device determines the value of X according to the priority of the data to be sent and the corresponding relationship.
  • the resource pool configuration can be configured by the network or pre-configured.
  • the above introduction is an SL communication method in NR-V2X, that is, the terminal device independently selects transmission resources through resource monitoring, and performs data transmission on the sidelink by itself.
  • This SL communication method can also be applied to various SL communications such as direct communication between handheld terminals and direct communication between pedestrians and vehicles.
  • UE 1 is a terminal device that performs autonomous resource selection. When UE 1 selects resources, it can also consider auxiliary information from UE 2, so as to further avoid resource collisions between the selected resources and other UEs, and improve communication reliability. sex.
  • UE 2 determines and sends auxiliary information to UE 1.
  • the above specific conditions such as detecting that the resources sent by UE 1 conflict with other UEs, or periodically determine and send auxiliary information to UE 1.
  • the above auxiliary information at least includes the resource set determined by UE 2.
  • the resources in the above resource set are resources suitable for UE1 transmission or the resources in the above resource set are resources not suitable for UE1 transmission.
  • UE 2 determines the above resource set according to the intercepted first sidelink control information, that is, according to the interception result of its own resources.
  • the above bearer auxiliary information can be transmitted through the first side line control information, the second side line control information, PSSCH, MAC (Media Access Control, media access control) CE (Control Element, control unit), PC5-RRC (Radio Resource Control, One or more of Radio Resource Control), PSFCH (Physical Sidelink Feedback Channel, Physical Sidelink Feedback Channel).
  • MAC Media Access Control, media access control
  • CE Control Element, control unit
  • PC5-RRC Radio Resource Control, One or more of Radio Resource Control
  • PSFCH Physical Sidelink Feedback Channel, Physical Sidelink Feedback Channel.
  • UE 2 is supported to send a resource set (not preferred resource set) that is not suitable for UE 1 transmission to UE 1, and UE 1 performs resource exclusion based on the resource set provided by UE 2 when performing resource exclusion. Specifically, UE 1 performs resource exclusion according to the resource set provided by UE 2 after the above Step 1-2.
  • the specific process of UE 1 selecting resources is as follows:
  • UE 1 initializes the resource set A to be all available resources belonging to the resource pool used by the terminal in the resource selection window, and the number of resources included in the resource set A is M total ;
  • Step 1-1 UE 1 performs resource exclusion according to the unlistened time slot
  • Step 1-2 UE 1 performs resource exclusion according to the result of resource interception
  • Step 1-3 UE 1 performs resource exclusion according to the resource set provided by UE 2;
  • the upper layer selects one or more transmission resources in the resource set A.
  • step (4) Compared with the original mechanism, the introduction of the above step (4) will cause UE 1 to perform additional resource exclusion, thus causing UE 1 to increase the RSRP threshold multiple times and even lead to an infinite loop in steps (1)-(5).
  • X 50% and M total is 100.
  • the numbers of resources excluded by UE 1 in steps (2), (3) and (4) are 30, 20 and 30 respectively.
  • step (5) since the number of remaining resources is less than 50, the RSRP threshold is raised and step (1) is executed again.
  • the present application proposes to add an appropriate judging mechanism after performing the above step (4), or before performing the above step (4), or during the process of performing the above step (4), to solve the problem caused by the introduction of step (4). of the above problems.
  • FIG. 6 shows a flowchart of a resource exclusion method provided by an embodiment of the present application.
  • the method can be executed by the first terminal device.
  • the method may include the steps of:
  • Step 610 After the first terminal device performs the first exclusion operation on the candidate resource set, if the number of resources in the candidate resource set is less than or equal to the first value, then the first terminal device sets the candidate resource set as the number before the first exclusion operation.
  • the resource set received by the first terminal device is provided or sent by the second terminal device.
  • the second terminal device is any terminal device except the first terminal device, or a receiving end corresponding to the first terminal device, or another device that performs inter-terminal cooperation with the first terminal device.
  • the resource set received by the first terminal device is a resource set not suitable for transmission by the first terminal device, and the set includes one or more resources not suitable for transmission by the first terminal device.
  • the first value is related to the initial number of resources in the set of candidate resources.
  • the first value may be the product of the number of initial resources in the candidate resource set and a certain coefficient, and the coefficient may be a value in the interval (0,1).
  • the first value is X*M total , where M total is the number of initial resources in the candidate resource set, and X refers to the content in the background knowledge above. That is, the possible values of X are ⁇ 20%, 35%, 50% ⁇ .
  • the configuration of the resource pool used by the terminal device includes the corresponding relationship between the priority and the above possible values, and the terminal device determines the value of X according to the priority of the data to be sent and the corresponding relationship.
  • the resource pool configuration can be configured by the network or pre-configured.
  • the initial number of resources in the candidate resource set refers to the number of resources included in the candidate resource set when the first terminal device initializes the candidate resource set. According to the introduction in the background knowledge section above, that is, when the first terminal device initializes the resource set A, the number of resources contained in the initialized resource set A can be recorded as M total .
  • the first exclusion operation is step (4).
  • UE 1 executes step (4), if the number of resources in resource set A is less than (or equal to) X*M total , UE 1 sets resource set A to A is set as the resource set A before step (4) is performed. That is to say, UE 1 sets the resource set A as the resource set A obtained after performing step (3).
  • the first terminal device when the first terminal device performs the first exclusion operation, if the first resource in the candidate resource set or the periodic resource corresponding to the first resource is different from the resource set received by the first terminal device If the second resource overlaps, the first terminal device excludes the first resource from the candidate resource set.
  • the second resource is any time-frequency resource in the resource set received by the first terminal device, or any time slot in the received resource set, or any subchannel in the received resource set.
  • one time-frequency resource corresponds to one time slot in the time domain, and corresponds to one or more subchannels in the frequency domain.
  • one time-frequency resource occupies one time slot in the time domain, and occupies one or more subchannels in the frequency domain.
  • a subchannel may refer to a time-frequency resource corresponding to one time slot in the time domain, and a frequency domain width of one subchannel.
  • a subchannel may refer to a time-frequency resource that occupies one time slot in the time domain and has a width of one subchannel in the frequency domain.
  • the first resource is a resource R(x, y), where x and y are used to indicate a frequency domain position and a time domain position of the first resource, respectively.
  • the periodic resource corresponding to the first resource is R(x, y+j*Ptxlg), j is an integer belonging to [0, Cresel-1], where Cresel is related to the random count value generated by the first terminal device, and Ptxlg is Ptx After being converted into the number of logical time slots, Ptx is the resource reservation period of the first terminal device.
  • the "logical time slot” mentioned in this application is a concept relative to the physical time slot, for example, there are 10 physical time slots, but among the 10 physical time slots, only 5 time slots belong to the first terminal device If the resource pool is used, the number of logical time slots is 5. These 5 time slots may be physically discontinuous, but logically continuous.
  • UE 1 triggers resource selection or reselection in time slot n or time slot n is the time slot in which the upper layer triggers the physical layer to report the candidate resource set or time slot n according to the time slot in which the resource set is received Determined, UE 1 determines a resource selection window 10 from n+T 1 to n+T 2 .
  • T 1 and T 2 are partly consistent with the background knowledge.
  • the UE 1 determines a resource listening window 20 from nT 0 to nT proc,0 .
  • the resource listening window 20 does not include nT proc,0 .
  • T 0 and T proc,0 refer to the background knowledge section.
  • UE 1 initializes resource set A to be all available resources belonging to the resource pool used by UE 1 within the resource selection window, and the number of resources included in resource set A is M total , that is, the initial number of resources in resource set A is M total .
  • Any resource in the resource set A is denoted as R(x, y), and x and y are respectively used to indicate the frequency domain position and the time domain position of the resource.
  • Step 1-1 UE 1 performs resource exclusion according to the unlistened time slot. If resource R(x,y) or a series of periodic resources corresponding to resource R(x,y) overlap with a time slot determined by UE 1 based on the unheard time slots, resource R(x,y) is excluded from resource set A ,y). For example, refer to Step 1-1 in the background knowledge section to exclude resources.
  • UE 1 may not perform the above Step 1-1.
  • Step 1-1 the number of remaining resources in resource set A is less than X*M total , then UE 1 initializes resource set A to be all available resources belonging to the resource pool used by UE 1 in the resource selection window. resources, and then perform Step 1-2.
  • Step 1-2 UE 1 performs resource exclusion according to the result of resource interception. If resource R(x, y) or a series of periodic resources corresponding to resource R(x, y) overlap with the resource determined by UE 1 according to the detected first sidelink control information and meet the RSRP threshold condition, then from Resource R(x,y) is excluded from resource set A. Exemplarily, resource exclusion is performed referring to Step 1-2 of the background knowledge part.
  • Step 1-3 UE 1 performs resource exclusion according to the received resource set.
  • UE 1 shall exclude any resource R(x,y) from resource set A or any remaining resource R(x,y) or any resource R(x,y) still in resource set A, if The following conditions are met: R(x, y) or a series of periodic resources corresponding to R(x, y) and any time-frequency resource or any time slot contained in one or more resource sets received by UE 1 Or any one of the subchannels overlaps.
  • one or more resource sets received by UE 1 are provided by UE 2 or sent by UE 2.
  • UE 2 is any terminal device except UE 1.
  • UE 2 is the receiving end of UE 1.
  • UE 2 is a terminal device that performs inter-terminal cooperation with UE 1.
  • resource R(x,y) overlaps with resource O(a,b) in the received resource set, then UE 1 excludes resource R(x,y) from resource set A.
  • resource O(a,b) For resource O(a,b), a and b are respectively used to represent the frequency domain position and the time domain position of the resource.
  • R(x,y) is R(x,y+j*Ptxlg)
  • Ptxlg is the number of Ptx converted into logical time slots
  • Ptx is the resource reservation period of UE 1.
  • FIG. 7 what is shown in FIG. 7 is the situation where Cresel is 3.
  • UE 1 performs resource exclusion according to the received resource set (i.e. after performing Step 1-3 above), the number of remaining resources in resource set A is less than or equal to X*M total , UE 1 resets resource set A to It is set to resource set A before Step 1-3 is executed, or UE 1 discards the result of resource exclusion in Step 1-3, or it is set to resource set A after Step 1-2 is executed. Afterwards, UE 1 performs the following step (5).
  • the upper layer selects one or more transmission resources in the resource set A.
  • the above-mentioned resource set received by UE 1 is a resource set not suitable for UE 1 to transmit.
  • the candidate resource set is set to the candidate resource set before the first exclusion operation, thus solving the problem of multiple increases in the RSRP threshold or an infinite loop caused by the introduction of the first exclusion operation, and helping to shorten the entire resource exclusion process time-consuming and improve the efficiency of the resource exclusion process.
  • FIG. 8 shows a flowchart of a resource exclusion method provided by another embodiment of the present application.
  • the method can be executed by the first terminal device.
  • the method may include the steps of:
  • Step 810 after the first terminal device performs the first exclusion operation on the candidate resource set, if the number of resources in the candidate resource set is less than or equal to the first value, the first terminal device puts the resources excluded in the first exclusion operation into A set of candidate resources; wherein, the first exclusion operation includes the first terminal device performing resource exclusion according to the received resource set.
  • the resource set received by the first terminal device is provided or sent by the second terminal device.
  • the second terminal device is any terminal device except the first terminal device, or a receiving end corresponding to the first terminal device, or another device that performs inter-terminal cooperation with the first terminal device.
  • the resource set received by the first terminal device is a resource set not suitable for transmission by the first terminal device, and the set includes one or more resources not suitable for transmission by the first terminal device.
  • the first value is related to the initial number of resources in the set of candidate resources.
  • the first value may be the product of the number of initial resources in the candidate resource set and a certain coefficient, and the coefficient may be a value in the interval (0,1).
  • the first value is X*M total , where M total is the number of initial resources in the candidate resource set, and X refers to the content in the background knowledge above. That is, the possible values of X are ⁇ 20%, 35%, 50% ⁇ .
  • the configuration of the resource pool used by the terminal device includes the corresponding relationship between the priority and the above possible values, and the terminal device determines the value of X according to the priority of the data to be sent and the corresponding relationship.
  • the resource pool configuration can be configured by the network or pre-configured.
  • the initial number of resources in the candidate resource set refers to the number of resources included in the candidate resource set when the first terminal device initializes the candidate resource set. According to the introduction in the background knowledge section above, that is, when the first terminal device initializes the resource set A, the number of resources contained in the initialized resource set A can be recorded as M total .
  • the first exclusion operation is step (4).
  • UE 1 executes step (4), if the number of resources in resource set A is less than (or equal to) X*M total , UE 1 will execute The resources excluded in the process of step (4) are put back into the resource collection A.
  • UE 1 can put all the resources excluded during the execution of step (4) back into resource set A (the final result in this case is equivalent to that described in the embodiment of Figure 6 above, UE 1 puts resources The set A is set as the resource set A) before the step (4) is performed, and the UE 1 may also put some resources excluded during the step (4) back into the resource set A.
  • the first terminal device puts the resources excluded in the first exclusion operation into the candidate resource set, including: the first terminal device determines that the resources to be included in the first method are selected from the resources excluded in the first exclusion operation.
  • the first manner is a random selection manner.
  • the first manner is a sequential selection manner.
  • the sequential selection method is: a method of selecting in the time domain first and then selecting in the frequency domain, or a method of selecting in the frequency domain first and then selecting in the time domain. Taking the method of selecting in the time domain first and then selecting in the frequency domain as an example, it can be selected in accordance with the method of first increasing the time domain and then increasing the frequency domain.
  • the resources excluded in the first exclusion operation are R(1,2), R (2,2), R(3,2), R(1,3) and R(2,3)
  • the first time domain and then the frequency domain means that R(1,2), R(1,3), R(1,3), R(2,2), R(2,3), and R(3,2) are put into resource set A, that is, increase in time domain first and then increase in frequency domain.
  • the method of selecting in the frequency domain first and then selecting in the time domain as an example, it can be selected in accordance with the frequency domain increment first and then the time domain increment.
  • the resources excluded in the first exclusion operation are R(1,2), R (2,2), R(3,2), R(1,3) and R(2,3)
  • the frequency domain first and then the time domain means that R(1,2), R(2,2), R(2,2), R(3,2), R(1,3), and R(2,3) are put into resource set A, that is, increase in frequency domain first and then increase in time domain.
  • the stop condition for putting resources into the candidate resource set is any of the following:
  • the number of resources in the candidate resource set is greater than or equal to the first value
  • the number of resources in the candidate resource set is greater than or equal to the second value, and the second value is not equal to the first value.
  • the second value is the sum of the first value and an offset, and the offset may be greater than 0 or less than 0.
  • the first value is X*M total
  • the second value is X*Mtotal- ⁇ or X*Mtotal+ ⁇
  • both ⁇ and ⁇ are values greater than 0.
  • the second value is configured by the network, or is pre-configured, or depends on the implementation of the first terminal device, or a preset value specified by a standard.
  • the offset between the second value and the first value is configured by the network, or is pre-configured, or depends on the implementation of the first terminal device, or a preset value specified by a standard.
  • the first terminal device determines that resources are put into the candidate resource set in the first manner until the above stop condition is met.
  • the first terminal device determines resources to be put into the candidate resource set according to the first manner, until all the resources excluded in the first exclusion operation are put into the candidate resource set.
  • the first terminal device determines resources to be put into the candidate resource set according to the first manner until the number of resources in the candidate resource set is greater than or equal to the first value.
  • the first terminal device determines that resources are put into the candidate resource set according to the first manner until the number of resources in the candidate resource set is greater than or equal to the second value.
  • the first terminal device when the first terminal device performs the first exclusion operation, if the first resource in the candidate resource set or the periodic resource corresponding to the first resource is different from the resource set received by the first terminal device If the second resource overlaps, the first terminal device excludes the first resource from the candidate resource set.
  • the second resource is any time-frequency resource in the resource set received by the first terminal device, or any time slot in the received resource set, or any subchannel in the received resource set.
  • one time-frequency resource corresponds to one time slot in the time domain, and corresponds to one or more subchannels in the frequency domain.
  • one time-frequency resource occupies one time slot in the time domain, and occupies one or more subchannels in the frequency domain.
  • a subchannel may refer to a time-frequency resource corresponding to one time slot in the time domain, and a frequency domain width of one subchannel.
  • a subchannel may refer to a time-frequency resource that occupies one time slot in the time domain and has a width of one subchannel in the frequency domain.
  • the first resource is a resource R(x, y), where x and y are used to indicate a frequency domain position and a time domain position of the first resource, respectively.
  • the periodic resource corresponding to the first resource is R(x, y+j*Ptxlg), j is an integer belonging to [0, Cresel-1], where Cresel is related to the random count value generated by the first terminal device, and Ptxlg is Ptx After being converted into the number of logical time slots, Ptx is the resource reservation period of the first terminal device.
  • the "logical time slot” mentioned in this application is a concept relative to the physical time slot, for example, there are 10 physical time slots, but among the 10 physical time slots, only 5 time slots belong to the first terminal device If the resource pool is used, the number of logical time slots is 5. These 5 time slots may be physically discontinuous, but logically continuous.
  • UE 1 triggers resource selection or reselection in time slot n or time slot n is the time slot in which the upper layer triggers the physical layer to report the candidate resource set or time slot n according to the time slot in which the resource set is received Determined, UE 1 determines a resource selection window 10 from n+T 1 to n+T 2 .
  • T 1 and T 2 are partly consistent with the background knowledge.
  • the UE 1 determines a resource listening window 20 from nT 0 to nT proc,0 .
  • the resource listening window 20 does not include nT proc,0 .
  • T 0 and T proc,0 refer to the background knowledge section.
  • UE 1 initializes resource set A to be all available resources belonging to the resource pool used by UE 1 within the resource selection window, and the number of resources included in resource set A is M total , that is, the initial number of resources in resource set A is M total .
  • Any resource in the resource set A is denoted as R(x, y), and x and y are respectively used to indicate the frequency domain position and the time domain position of the resource.
  • Step 1-1 UE 1 performs resource exclusion according to the unlistened time slot. If resource R(x,y) or a series of periodic resources corresponding to resource R(x,y) overlap with a time slot determined by UE 1 based on the unheard time slots, resource R(x,y) is excluded from resource set A ,y). For example, refer to Step 1-1 in the background knowledge section to exclude resources.
  • UE 1 may not perform the above Step 1-1.
  • Step 1-1 the number of remaining resources in resource set A is less than X*M total , then UE 1 initializes resource set A to be all available resources belonging to the resource pool used by UE 1 in the resource selection window. resources, and then perform Step 1-2.
  • Step 1-2 UE 1 performs resource exclusion according to the result of resource interception. If resource R(x, y) or a series of periodic resources corresponding to resource R(x, y) overlap with the resource determined by UE 1 according to the detected first sidelink control information and meet the RSRP threshold condition, then from Resource R(x,y) is excluded from resource set A. Exemplarily, resource exclusion is performed referring to Step 1-2 of the background knowledge part.
  • Step 1-3 UE 1 performs resource exclusion according to the received resource set.
  • UE 1 shall exclude any resource R(x,y) from resource set A or any remaining resource R(x,y) or any resource R(x,y) still in resource set A, if The following conditions are met: R(x, y) or a series of periodic resources corresponding to R(x, y) and any time-frequency resource or any time slot contained in one or more resource sets received by UE 1 Or any one of the subchannels overlaps.
  • one or more resource sets received by UE 1 are provided by UE 2 or sent by UE 2.
  • UE 2 is any terminal device except UE 1.
  • UE 2 is the receiving end of UE 1.
  • UE 2 is a terminal device that performs inter-terminal cooperation with UE 1.
  • resource R(x,y) overlaps with resource O(a,b) in the received resource set, then UE 1 excludes resource R(x,y) from resource set A.
  • resource O(a,b) For resource O(a,b), a and b are respectively used to represent the frequency domain position and the time domain position of the resource.
  • R(x,y) is R(x,y+j*Ptxlg)
  • Ptxlg is the number of Ptx converted into logical time slots
  • Ptx is the resource reservation period of UE 1.
  • FIG. 7 what is shown in FIG. 7 is the situation where Cresel is 3.
  • UE 1 is excluded from Step 1-3 Determined resources are put into resource set A until the resources excluded in Step 1-3 are put back into resource set A or the number of resources in resource set A is greater than or equal to X*Mtotal or X*Mtotal- ⁇ or X* Mtotal+ ⁇ .
  • the ⁇ or ⁇ is configured or pre-configured by the network or depends on the preset value implemented by the terminal or stipulated by the standard.
  • UE 1 then performs the following step (5). From the resources excluded in Step 1-3, UE 1 determines the way to put resources into resource set A, including random selection or sequential selection. This has been described in the above embodiments and will not be repeated here.
  • the upper layer selects one or more transmission resources in the resource set A.
  • the above-mentioned resource set received by UE 1 is a resource set not suitable for UE 1 to transmit.
  • the first terminal device performs the first exclusion operation (that is, performs resource exclusion according to the received resource set)
  • the number of resources in the candidate resource set is less than or equal to the first value
  • put the resources excluded in the first exclusion operation into the candidate resource set thus solving the problem of multiple increases in the RSRP threshold or infinite loop caused by the introduction of the first exclusion operation, and helping to shorten the entire resource exclusion process. Time-consuming, improving the efficiency of the resource exclusion process.
  • FIG. 9 shows a flowchart of a resource exclusion method provided by another embodiment of the present application.
  • the method can be executed by the first terminal device.
  • the method may include the steps of:
  • Step 910 During the process of performing the first exclusion operation, if the number of resources in the candidate resource set is less than or equal to the third value, the first terminal device stops the first exclusion operation; wherein, the first exclusion operation includes The first terminal device performs resource exclusion according to the received resource set.
  • the resource set received by the first terminal device is provided or sent by the second terminal device.
  • the second terminal device is any terminal device except the first terminal device, or a receiving end corresponding to the first terminal device, or another device that performs inter-terminal cooperation with the first terminal device.
  • the resource set received by the first terminal device is a resource set not suitable for transmission by the first terminal device, and the set includes one or more resources not suitable for transmission by the first terminal device.
  • the first value is related to the initial number of resources in the set of candidate resources.
  • the first value may be the product of the number of initial resources in the candidate resource set and a certain coefficient, and the coefficient may be a value in the interval (0,1).
  • the first value is X*M total , where M total is the number of initial resources in the candidate resource set, and X refers to the content in the background knowledge above. That is, the possible values of X are ⁇ 20%, 35%, 50% ⁇ .
  • the configuration of the resource pool used by the terminal device includes the corresponding relationship between the priority and the above possible values, and the terminal device determines the value of X according to the priority of the data to be sent and the corresponding relationship.
  • the resource pool configuration can be configured by the network or pre-configured.
  • the initial number of resources in the candidate resource set refers to the number of resources included in the candidate resource set when the first terminal device initializes the candidate resource set. According to the introduction in the background knowledge section above, that is, when the first terminal device initializes the resource set A, the number of resources contained in the initialized resource set A can be recorded as M total .
  • the first exclusion operation is step (4).
  • UE 1 stops performing this step. (4).
  • UE 1 performs step (5).
  • the third value is equal to the first value. For example, if the first value is X*M total , then the third value is also X*M total .
  • the third value is not equal to the first value.
  • the third value is the sum of the first value and the offset, and the offset may be greater than 0 or less than 0.
  • the first value is X*M total
  • the third value is X*Mtotal- ⁇ or X*Mtotal+ ⁇
  • both ⁇ and ⁇ are values greater than 0.
  • the third value is configured by the network, or is preconfigured, or depends on the implementation of the first terminal device, or is a preset value specified by a standard.
  • the offset between the third value and the first value is configured by the network, or is pre-configured, or depends on the implementation of the first terminal device, or a preset value specified in a standard.
  • the first terminal device when the first terminal device performs the first exclusion operation (that is, performs resource exclusion according to the received resource set), if the number of resources in the candidate resource set is less than or equal to The third value stops the first exclusion operation, thereby solving the problem of multiple increases in the RSRP threshold or infinite loop caused by the introduction of the first exclusion operation, which helps to shorten the time-consuming of the entire resource exclusion process and improve the resource exclusion process. s efficiency.
  • FIG. 10 shows a flowchart of a resource exclusion method provided by another embodiment of the present application.
  • the method can be executed by the first terminal device.
  • the method may include the steps of:
  • Step 1010 after the first terminal device performs the second exclusion operation on the candidate resource set, if the first condition is satisfied, the first terminal device performs the first exclusion operation on the candidate resource set after the second exclusion operation; wherein, the first The exclusion operation includes that the first terminal device performs resource exclusion according to the received resource set, and the second exclusion operation includes that the first terminal device performs resource exclusion according to the unlistened time slot and/or performs resource exclusion according to the resource interception result; the first condition At least one of the following is included: the number of resources in the candidate resource set after the second exclusion operation satisfies the first subcondition, and the number of resources in the received resource set satisfies the second subcondition.
  • the resource set received by the first terminal device is provided or sent by the second terminal device.
  • the second terminal device is any terminal device except the first terminal device, or a receiving end corresponding to the first terminal device, or another device that performs inter-terminal cooperation with the first terminal device.
  • the resource set received by the first terminal device is a resource set not suitable for transmission by the first terminal device, and the set includes one or more resources not suitable for transmission by the first terminal device.
  • the first value is related to the initial number of resources in the set of candidate resources.
  • the first value may be the product of the number of initial resources in the candidate resource set and a certain coefficient, and the coefficient may be a value in the interval (0,1).
  • the first value is X*M total , where M total is the number of initial resources in the candidate resource set, and X refers to the content in the background knowledge above. That is, the possible values of X are ⁇ 20%, 35%, 50% ⁇ .
  • the configuration of the resource pool used by the terminal device includes the corresponding relationship between the priority and the above possible values, and the terminal device determines the value of X according to the priority of the data to be sent and the corresponding relationship.
  • the resource pool configuration can be configured by the network or pre-configured.
  • the initial number of resources in the candidate resource set refers to the number of resources included in the candidate resource set when the first terminal device initializes the candidate resource set. According to the introduction in the background knowledge section above, that is, when the first terminal device initializes the resource set A, the number of resources contained in the initialized resource set A can be recorded as M total .
  • the first exclusion operation is step (4)
  • the second exclusion operation includes steps (2) and/or (3)
  • UE 1 performs steps (2) and/or (3) on resource set A Afterwards, if the first condition is met, UE 1 continues to perform step (4) on the resource set A obtained after performing the above steps (2) and/or (3).
  • UE 1 does not perform step (4) on the resource set A obtained after performing the above steps (2) and/or (3), for example, it may directly perform step (5).
  • the first condition may include a first subcondition and/or a second subcondition
  • the first subcondition is a condition set based on the number of resources in the candidate resource set after the second exclusion operation
  • the second subcondition is a condition set based on the number of resources in the resource set received by the first terminal device.
  • the first subcondition is: the difference between the number of resources in the candidate resource set after the second exclusion operation and the first value is greater than or equal to the first threshold.
  • the first value is X*M total .
  • the first threshold is configured by the network, or is pre-configured, or depends on the implementation of the first terminal device, or a preset value specified by a standard.
  • the first threshold is the number of resources in the resource set received by the first terminal device.
  • the first threshold is the sum of the number of resources in the resource set received by the first terminal device and a fifth value, where the fifth value is an integer greater than or equal to 0.
  • the fifth value is denoted as L
  • the first threshold number of resources in the resource set received by the first terminal device+L
  • L is an integer greater than or equal to 0.
  • the first subcondition is: the difference between the product of the number of resources in the candidate resource set after the second exclusion operation and the fourth value and the product of the first value and the fourth value is greater than or equal to second threshold.
  • the first value is X*M total
  • the fourth value is the number of subchannels corresponding to a candidate resource
  • the fourth value may be recorded as M_subchannel.
  • the second threshold is configured by the network, or is pre-configured, or depends on the implementation of the first terminal device, or a preset value specified by a standard.
  • the second threshold is the number of subchannels in the resource set received by the first terminal device.
  • the second threshold is the sum of the number of subchannels in the resource set received by the first terminal device and a sixth value, where the sixth value is an integer greater than or equal to 0.
  • the sixth value is denoted as L
  • the second threshold the number of subchannels in the resource set received by the first terminal device+L
  • L is an integer greater than or equal to 0.
  • the first subcondition is: the number of resources in the candidate resource set after the second exclusion operation is greater than or equal to the third threshold.
  • the third threshold is configured by the network, or is preconfigured, or depends on the implementation of the first terminal device, or is a preset value specified by a standard.
  • the third threshold is the product of the number of initial resources in the candidate resource set and the seventh value.
  • the seventh value is denoted as U
  • the third threshold is U*M total .
  • the seventh value is configured by the network, or is preconfigured, or depends on the implementation of the first terminal device, or is a preset value specified in a standard.
  • the first subcondition is: the product of the number of resources in the candidate resource set after the second exclusion operation and the fourth value is greater than or equal to the fourth threshold.
  • the fourth threshold is configured by the network, or is preconfigured, or depends on the implementation of the first terminal device, or a preset value specified by a standard.
  • the fourth threshold is a product of the number of initial resources in the candidate resource set, the seventh value and the fourth value.
  • the seventh value is denoted as U
  • the fourth value is denoted as M_subchannel, indicating the number of subchannels corresponding to one candidate resource
  • the third threshold is U*M total *M_subchannel.
  • the seventh value is configured by the network, or is preconfigured, or depends on the implementation of the first terminal device, or is a preset value specified in a standard.
  • the second subcondition is: the number of resources in the resource set received by the first terminal device is less than or equal to the fifth threshold.
  • the fifth threshold is configured by the network, or is preconfigured, or depends on the implementation of the first terminal device, or is a preset value specified by a standard.
  • the fifth threshold is a difference between the number of resources in the candidate resource set after the second exclusion operation and the first value.
  • the first value is X*M total .
  • the second subcondition is: the number of subchannels in the resource set received by the first terminal device is less than or equal to the sixth threshold.
  • the sixth threshold is configured by the network, or is preconfigured, or depends on the implementation of the first terminal device, or is a preset value specified by a standard.
  • the sixth threshold is the difference between the product of the number of resources in the candidate resource set after the second exclusion operation and the fourth value, and the product of the first value and the fourth value.
  • the first value is X*M total
  • the fourth value is the number of subchannels corresponding to a candidate resource
  • the fourth value may be recorded as M_subchannel.
  • the first terminal device when the first terminal device performs the first exclusion operation, if the first resource in the candidate resource set after the second exclusion operation or the periodic resource corresponding to the first resource is not related to the first terminal device If the second resource in the received resource set overlaps, the first terminal device excludes the first resource from the candidate resource set.
  • the second resource is any time-frequency resource in the resource set received by the first terminal device, or any time slot in the received resource set, or any subchannel in the received resource set. It should be noted that, in this application, one time-frequency resource corresponds to one time slot in the time domain, and corresponds to one or more subchannels in the frequency domain.
  • a time-frequency resource occupies one time slot in the time domain, and occupies one or more subchannels in the frequency domain.
  • a subchannel may refer to a time-frequency resource corresponding to one time slot in the time domain, and a frequency domain width of one subchannel.
  • a subchannel may refer to a time-frequency resource that occupies one time slot in the time domain and has a width of one subchannel in the frequency domain.
  • the first resource is a resource R(x, y), where x and y are used to indicate a frequency domain position and a time domain position of the first resource, respectively.
  • the periodic resource corresponding to the first resource is R(x, y+j*Ptxlg), j is an integer belonging to [0, Cresel-1], where Cresel is related to the random count value generated by the first terminal device, and Ptxlg is Ptx After being converted into the number of logical time slots, Ptx is the resource reservation period of the first terminal device.
  • the "logical time slot” mentioned in this application is a concept relative to the physical time slot, for example, there are 10 physical time slots, but among the 10 physical time slots, only 5 time slots belong to the first terminal device If the resource pool is used, the number of logical time slots is 5. These 5 time slots may be physically discontinuous, but logically continuous.
  • UE 1 triggers resource selection or reselection in time slot n or time slot n is the time slot in which the upper layer triggers the physical layer to report the candidate resource set or time slot n according to the time slot in which the resource set is received Determined, UE 1 determines a resource selection window 10 from n+T 1 to n+T 2 .
  • T 1 and T 2 are partly consistent with the background knowledge.
  • the UE 1 determines a resource listening window 20 from nT 0 to nT proc,0 .
  • the resource listening window 20 does not include nT proc,0 .
  • T 0 and T proc,0 refer to the background knowledge section.
  • UE 1 initializes resource set A to be all available resources belonging to the resource pool used by UE 1 within the resource selection window, and the number of resources included in resource set A is M total , that is, the initial number of resources in resource set A is M total .
  • Any resource in the resource set A is denoted as R(x, y), and x and y are respectively used to indicate the frequency domain position and the time domain position of the resource.
  • Step 1-1 UE 1 performs resource exclusion according to the unlistened time slot. If resource R(x,y) or a series of periodic resources corresponding to resource R(x,y) overlap with a time slot determined by UE 1 based on the unheard time slots, resource R(x,y) is excluded from resource set A ,y). For example, refer to Step 1-1 in the background knowledge section to exclude resources.
  • UE 1 may not perform the above Step 1-1.
  • Step 1-1 the number of remaining resources in resource set A is less than X*M total , then UE 1 initializes resource set A to be all available resources belonging to the resource pool used by UE 1 in the resource selection window. resources, and then perform Step 1-2.
  • Step 1-2 UE 1 performs resource exclusion according to the result of resource interception. If resource R(x, y) or a series of periodic resources corresponding to resource R(x, y) overlap with the resource determined by UE 1 according to the detected first sidelink control information and meet the RSRP threshold condition, then from Resource R(x,y) is excluded from resource set A. Exemplarily, resource exclusion is performed referring to Step 1-2 of the background knowledge part.
  • Step 1-3 is executed, and UE 1 performs resource exclusion according to the received resource set.
  • the first condition is: after Step 1-2 is executed, the number of resources in the resource set A is greater than or equal to U*M total .
  • U is configured or preconfigured by the network.
  • the first condition is: after Step 1-2 is executed, the difference between the resource number*M_subchannel and X*M total *M_subchannel in resource set A is greater than or equal to the network configuration or preconfigured threshold.
  • the first condition is: after Step 1-2 is executed, the difference between the number of resources * M_subchannel in resource set A and X*M total * M_subchannel is greater than or equal to the number of subchannels contained in the received resource set + L.
  • L is configured or preconfigured by the network.
  • UE 1 performs resource exclusion according to the received resource set including:
  • UE 1 shall exclude any resource R(x,y) from resource set A or any remaining resource R(x,y) or any resource R(x,y) still in resource set A, if The following conditions are met: R(x, y) or a series of periodic resources corresponding to R(x, y) and any time-frequency resource or any time slot contained in one or more resource sets received by UE 1 Or any one of the subchannels overlaps.
  • one or more resource sets received by UE 1 are provided by UE 2 or sent by UE 2.
  • UE 2 is any terminal device except UE 1.
  • UE 2 is the receiving end of UE 1.
  • UE 2 is a terminal device that performs inter-terminal cooperation with UE 1.
  • resource R(x,y) overlaps with resource O(a,b) in the received resource set, then UE 1 excludes resource R(x,y) from resource set A.
  • resource O(a,b) For resource O(a,b), a and b are respectively used to represent the frequency domain position and the time domain position of the resource.
  • R(x,y) is R(x,y+j*Ptxlg)
  • Ptxlg is the number of Ptx converted into logical time slots
  • Ptx is the resource reservation period of UE 1.
  • FIG. 7 what is shown in FIG. 7 is the situation where Cresel is 3.
  • the upper layer selects one or more transmission resources in the resource set A.
  • the above-mentioned resource set received by UE 1 is a resource set not suitable for UE 1 to transmit.
  • the first terminal device before the first terminal device executes the first exclusion operation (that is, performs resource exclusion according to the received resource set), it first judges whether the condition for performing the first exclusion operation is met, The first exclusion operation is performed only if the conditions are met, thereby solving the problem of multiple increases in the RSRP threshold or the infinite loop caused by the introduction of the first exclusion operation, which helps to shorten the time-consuming of the entire resource exclusion process and improve the resource exclusion process. s efficiency.
  • FIG. 11 shows a block diagram of a resource exclusion device provided by an embodiment of the present application.
  • the device has the function of realizing the above method example, and the function may be realized by hardware, or may be realized by executing corresponding software by hardware.
  • the apparatus may be the first terminal device described above, or may be set in the first terminal device. As shown in FIG. 11 , the apparatus 1100 may include: a processing module 1110 .
  • the processing module 1110 is configured to, after performing the first exclusion operation on the set of candidate resources, if the number of resources in the set of candidate resources is less than or equal to a first value, then set the set of candidate resources to Set as the candidate resource set before the first exclusion operation; wherein the first exclusion operation includes the first terminal device performing resource exclusion according to the received resource set.
  • the processing module 1110 is configured to, after performing the first exclusion operation on the candidate resource set, if the number of resources in the candidate resource set is less than or equal to a first value, then delete the first exclusion operation.
  • the resources excluded in the operation are put into the candidate resource set; wherein, the first excluding operation includes that the first terminal device excludes resources according to the received resource set.
  • the processing module 1110 is configured to stop the first exclusion if the number of resources in the candidate resource set is less than or equal to a third value during the execution of the first exclusion operation. Operation; wherein the third value is equal to or not equal to the first value.
  • the processing module 1110 is configured to perform the first exclusion operation on the candidate resource set after the second exclusion operation if the first condition is satisfied after the second exclusion operation is performed on the candidate resource set ;
  • the first exclusion operation includes the first terminal device performing resource exclusion according to the received resource set
  • the second exclusion operation includes the first terminal device performing resource exclusion according to the unlistened time slot and/or according to The result of resource monitoring is resource exclusion
  • the first condition includes at least one of the following: the number of resources in the candidate resource set after the second exclusion operation satisfies the first subcondition, and the resources in the received resource set The number satisfies the second subcondition.
  • the device provided by the above embodiment implements its functions, it only uses the division of the above functional modules as an example for illustration. In practical applications, the above function allocation can be completed by different functional modules according to actual needs.
  • the content structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • the terminal device 1200 may include: a processor 1201 , a transceiver 1202 and a memory 1203 .
  • the processor 1201 includes one or more processing cores, and the processor 1201 executes various functional applications and information processing by running software programs and modules.
  • the transceiver 1202 may include a receiver and a transmitter.
  • the receiver and the transmitter may be implemented as the same wireless communication component, and the wireless communication component may include a wireless communication chip and a radio frequency antenna.
  • the memory 1203 may be connected to the processor 1201 and the transceiver 1202 .
  • the memory 1203 may be used to store a computer program executed by the processor, and the processor 1201 is used to execute the computer program, so as to implement various steps performed by the first terminal device in the foregoing method embodiments.
  • the processor 1201 is configured to, after performing the first exclusion operation on the set of candidate resources, if the number of resources in the set of candidate resources is less than or equal to a first value, set the set of candidate resources to Set as the candidate resource set before the first exclusion operation; wherein the first exclusion operation includes the first terminal device performing resource exclusion according to the received resource set.
  • the processor 1201 is configured to, after performing the first exclusion operation on the candidate resource set, if the number of resources in the candidate resource set is less than or equal to a first value, then remove the first exclusion operation.
  • the resources excluded in the operation are put into the candidate resource set; wherein, the first excluding operation includes that the first terminal device excludes resources according to the received resource set.
  • the processor 1201 is configured to stop the first exclusion if the number of resources in the candidate resource set is less than or equal to a third value during the process of performing the first exclusion operation. Operation; wherein the third value is equal to or not equal to the first value.
  • the processor 1201 is configured to, after performing the second exclusion operation on the candidate resource set, perform the first exclusion operation on the candidate resource set after the second exclusion operation if the first condition is satisfied ;
  • the first exclusion operation includes the first terminal device performing resource exclusion according to the received resource set
  • the second exclusion operation includes the first terminal device performing resource exclusion according to the unlistened time slot and/or according to The result of resource monitoring is resource exclusion
  • the first condition includes at least one of the following: the number of resources in the candidate resource set after the second exclusion operation satisfies the first subcondition, and the resources in the received resource set The number satisfies the second subcondition.
  • memory may be implemented by any type or combination of volatile or nonvolatile storage devices including, but not limited to, magnetic or optical disks, electrically erasable programmable Read Memory, Erasable Programmable Read Only Memory, Static Anytime Access Memory, Read Only Memory, Magnetic Memory, Flash Memory, Programmable Read Only Memory.
  • An embodiment of the present application also provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used to be executed by a processor, so as to implement the resource exclusion method above.
  • the computer-readable storage medium may include: ROM (Read-Only Memory, read-only memory), RAM (Random-Access Memory, random access memory), SSD (Solid State Drives, solid state drive) or an optical disc, etc.
  • the random access memory may include ReRAM (Resistance Random Access Memory, resistive random access memory) and DRAM (Dynamic Random Access Memory, dynamic random access memory).
  • the embodiment of the present application also provides a chip, the chip includes a programmable logic circuit and/or program instructions, and is used to implement the above resource exclusion method when the chip is running.
  • the embodiment of the present application also provides a computer program product or computer program, the computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and the processor reads from the computer-readable storage medium The medium reads and executes the computer instructions, so as to realize the above resource exclusion method.
  • the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.
  • predefined can be realized by pre-saving corresponding codes, tables, or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). Its specific implementation manner is not limited. For example, the predefined ones may refer to those defined in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, for example, may include LTE protocol, NR protocol and related protocols applied in future communication systems, which is not limited in the present application.
  • the "plurality” mentioned herein means two or more.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently.
  • the character “/” generally indicates that the contextual objects are an "or” relationship.
  • the numbering of the steps described herein only exemplarily shows a possible sequence of execution among the steps.
  • the above-mentioned steps may not be executed according to the order of the numbers, such as two different numbers
  • the steps are executed at the same time, or two steps with different numbers are executed in the reverse order as shown in the illustration, which is not limited in this embodiment of the present application.
  • the functions described in the embodiments of the present application may be implemented by hardware, software, firmware or any combination thereof.
  • the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium.
  • Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage media may be any available media that can be accessed by a general purpose or special purpose computer.

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Abstract

本申请公开了一种资源排除方法、装置、终端、存储介质及程序产品，涉及通信技术领域。所述方法包括：第一终端设备在对候选资源集合执行第一排除操作之后，若候选资源集合中的资源数目小于或等于第一数值，则第一终端设备将候选资源集合设置为第一排除操作之前的候选资源集合；其中，第一排除操作包括第一终端设备根据接收到的资源集合进行资源排除(610)。在第一终端设备执行第一排除操作(即根据接收到的资源集合进行资源排除)之后/之前/过程中，本申请通过增加适当的判断机制，解决了第一排除操作的引入导致的RSRP阈值多次提升或导致的无限循环问题，有助于缩短整个资源排除过程的耗时，提升资源排除过程的效率。

Description

资源排除方法、装置、终端、存储介质及程序产品 技术领域
本申请实施例涉及通信技术领域，特别涉及一种资源排除方法、装置、终端、存储介质及程序产品。
背景技术
在SL(Sidelink，侧行链路)通信中，终端设备可以通过侦听方式在资源池中选择传输资源。
目前标准对于终端设备通过侦听进行自主资源选取的SL通信方式进一步实施优化，提出了终端设备间协作进行资源选取的SL通信方式。但关于终端设备间协作进行资源选取的一些细节，还需进一步研究。
发明内容
本申请实施例提供了一种资源排除方法、装置、终端、存储介质及程序产品。所述技术方案如下：
根据本申请实施例的一个方面，提供了一种资源排除方法，所述方法由第一终端设备执行，所述方法包括：
在对候选资源集合执行第一排除操作之后，若所述候选资源集合中的资源数目小于或等于第一数值，则将所述候选资源集合设置为所述第一排除操作之前的候选资源集合，或将所述第一排除操作中排除的资源放入所述候选资源集合；其中，所述第一排除操作包括所述第一终端设备根据接收到的资源集合进行资源排除。
根据本申请实施例的一个方面，提供了一种资源排除方法，所述方法由第一终端设备执行，所述方法包括：
在对候选资源集合执行第二排除操作之后，若满足第一条件，则对所述第二排除操作之后的候选资源集合执行第一排除操作；其中，所述第一排除操作包括所述第一终端设备根据接收到的资源集合进行资源排除，所述第二排除操作包括所述第一终端设备根据未侦听时隙进行资源排除和/或根据资源侦听结果进行资源排除；所述第一条件包括以下至少一项：所述第二排除操作之后的候选资源集合中的资源数目满足第一子条件，所述接收到的资源集合中的资源数目满足第二子条件。
根据本申请实施例的一个方面，提供了一种资源排除装置，所述装置包括：
处理模块，用于在对候选资源集合执行第一排除操作之后，若所述候选资源集合中的资源数目小于或等于第一数值，则将所述候选资源集合设置为所述第一排除操作之前的候选资源集合，或将所述第一排除操作中排除的资源放入所述候选资源集合；其中，所述第一排除操作包括第一终端设备根据接收到的资源集合进行资源排除。
根据本申请实施例的一个方面，提供了一种资源排除装置，所述装置包括：
处理模块，用于在对候选资源集合执行第二排除操作之后，若满足第一条件，则对所述第二排除操作之后的候选资源集合执行第一排除操作；其中，所述第一排除操作包括第一终端设备根据接收到的资源集合进行资源排除，所述第二排除操作包括所述第一终端设备根据未侦听时隙进行资源排除和/或根据资源侦听结果进行资源排除；所述第一条件包括以下至少一项：所述第二排除操作之后的候选资源集合中的资源数目满足第一子条件，所述接收到的资源集合中的资源数目满足第二子条件。
根据本申请实施例的一个方面，提供了一种终端设备，所述终端设备包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述计算机程序以实现上述资源排除方法。
根据本申请实施例的一个方面，提供了一种计算机可读存储介质，所述存储介质中存储有计算机程序，所述计算机程序用于被处理器执行，以实现上述资源排除方法。
根据本申请实施例的一个方面，提供了一种芯片，所述芯片包括可编程逻辑电路和/或程序指令，当所述芯片运行时，用于实现上述资源排除方法。
根据本申请实施例的一个方面，提供了一种计算机程序产品或计算机程序，所述计算机程序产品或计算机程序包括计算机指令，所述计算机指令存储在计算机可读存储介质中，处理器从所述计算机可读存储介质读取并执行所述计算机指令，以实现上述资源排除方法。
本申请实施例提供的技术方案可以包括如下有益效果：
在第一终端设备执行第一排除操作(即根据接收到的资源集合进行资源排除)之后/之前/过程中，通过增加适当的判断机制，解决了第一排除操作的引入导致的RSRP阈值多次提升或导致的无限循环问题，有助于缩短整个资源排除过程的耗时，提升资源排除过程的效率。
附图说明
图1是本申请一个实施例提供的网络架构的示意图；
图2是本申请一个实施例提供的SL通信的物理层结构的示意图；
图3是本申请一个实施例提供的时频资源位置预留的示意图；
图4是本申请一个实施例提供的资源侦听和资源选择的示意图；
图5是本申请一个实施例提供的终端设备间协作进行资源选取的流程图；
图6是本申请一个实施例提供的资源排除方法的流程图；
图7是本申请一个实施例提供的资源排除过程的示意图；
图8是本申请另一个实施例提供的资源排除方法的流程图；
图9是本申请另一个实施例提供的资源排除方法的流程图；
图10是本申请另一个实施例提供的资源排除方法的流程图；
图11是本申请一个实施例提供的资源排除装置的框图；
图12是本申请一个实施例提供的终端设备的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。本申请提供的各个实施例，可以单独实现，也可以进行任意的组合实现成为新的实施例。
本申请实施例描述的网络架构以及业务场景是为了更加清楚地说明本申请实施例的技术方案，并不构成对本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
请参考图1，其示出了本申请一个实施例提供的网络架构的示意图。该网络架构可以包括：核心网11、接入网12和终端设备13。
核心网11中包括若干核心网设备。核心网设备的功能主要是提供用户连接、对用户的管理以及对业务完成承载，作为承载网络提供到外部网络的接口。例如，5G(5th Generation，第五代移动通信技术)NR(New Radio，新空口)系统的核心网中可以包括AMF(Access and Mobility Management Function，接入和移动性管理功能)实体、UPF(User Plane Function，用户平面功能)实体和SMF(Session Management Function，会话管理功能)实体等设备。
接入网12中包括若干接入网设备14。5G NR系统中的接入网可以称为NG-RAN(New Generation-Radio Access Network，新一代无线接入网)。接入网设备14是一种部署在接入网12中用以为终端设备13提供无线通信功能的装置。接入网设备14可以包括各种形式的宏基站，微基站，中继站，接入点等等。在采用不同的无线接入技术的系统中，具备接入网设备功能的设备的名称可能会有所不同，例如在5G NR系统中，称为gNodeB或者gNB。随着通信技术的演进，“接入网设备”这一名称可能会变化。为方便描述，本公开实施例中，上述为终端设备13提供无线通信功能的装置统称为接入网设备。
终端设备13的数量通常为多个，每一个接入网设备14所管理的小区内可以分布一个或多个终端设备13。终端设备13可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其他处理设备，以及各种形式的用户设备、移动台(Mobile Station，MS)等等。为方便描述，上面提到的设备统称为终端设备。接入网设备14与核心网设备之间通过某种空中技术相互通信，例如5G NR系统中的NG接口。接入网设备14与终端设备13之间通过某种空中技术互相通信，例如Uu接口。
终端设备13和终端设备13(例如车载设备与其它设备(如其它车载设备、手机、RSU(Road Side Unit，路测单元)等))之间可以通过直连通信接口(如PC5接口)互相通信，相应地，该基于直连通信接口建立的通信链路可以称为直连链路或SL。SL传输即为终端设备与终端设备之间通过侧行链路直接进行通信数据传输，不同于传统的蜂窝系统中通信数据通过接入网设备接收或者发送，SL传输具有时延短、开销小等特点，适合用于地理位置接近的两个终端设备(如车载设备和地理位置接近的其它周边设备)之间的通信。需要说明的是，在图1中，仅以V2X(vehicle to everything，车联网)场景下的车对车通信为示例，SL技术可以应用于各种终端设备之间直接进行通信的场景。或者说，本申请中的终端设备是指任意一种利用SL技术通信的设备。
本公开实施例中的“5G NR系统”也可以称为5G系统或者NR系统，但本领域技术人员可以理解其含义。本公开实施例描述的技术方案可以适用于5G NR系统，也可以适用于5G NR系统后续的演进系统。
在介绍本申请技术方案之前，先对本申请涉及的一些背景技术知识进行介绍说明。以下相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合，其均属于本申请实施例的保护范围。本申请实施例包括以下内容中的至少部分内容。
关于SL传输，3GPP定义了两种传输模式：模式A和模式B。
模式A：终端设备的传输资源是由接入网设备(如基站)分配的，终端设备根据接入网设备分配的传输资源在侧行链路上进行通信数据的传输，其中，接入网设备既可以为终端设备分配单次传输的传输资源， 也可以为终端设备分配半静态传输的传输资源。
模式B：终端设备自行在资源池中选取传输资源进行通信数据的传输。具体地，终端设备可以通过侦听的方式在资源池中选取传输资源，或者通过随机选取的方式在资源池中选取传输资源。
接下来主要介绍NR V2X系统中SL通信，终端设备自主进行资源选择的方法(也即上述模式B)。
NR V2X系统中SL通信的物理层结构如图2所示。PSCCH(Physical Sidelink Control Channel，物理侧行控制信道)用于承载第一侧行控制信息，PSSCH(Physical Sidelink Shared Channel，物理侧行共享信道)用于承载数据和第二侧行控制信息。PSCCH和PSSCH在同一时隙中发送。上述第一侧行控制信息和第二侧行控制信息可以是两个具有不同作用的侧行控制信息。例如，第一侧行控制信息承载在PSCCH中，主要包含资源侦听相关的域，方便其他终端设备解码后进行资源排除与资源选择。在PSSCH中，除了数据外，还承载第二侧行控制信息，第二侧行控制信息主要包括数据解调相关的域，方便其他终端设备解调该PSSCH中的数据。
在NR V2X系统中，上述模式B下，终端设备自行选择传输资源来发送数据。资源预留则是资源选择的前提。
资源预留是指终端设备在PSCCH中发送第一侧行控制信息预留接下来要使用的资源。在NR V2X系统中，支持TB(Transport Block，传输块)内的资源预留也支持TB间的资源预留。
如图3所示，终端设备发送第一侧行控制信息，利用其中“Time resource assignment(时间资源分配)”和“Frequency resource assignment(频率资源分配)”域指示当前TB的N个时频资源(包括当前发送所用的资源)。其中N≤Nmax，在NR V2X中，Nmax等于2或3。同时，上述N个被指示的时频资源应分布在W个时隙内。在NR V2X中，W等于32。例如，图3所示的TB1中，终端设备在PSSCH发送初传数据的同时在PSCCH中发送第一侧行控制信息，利用上述两个域指示初传和重传1的时频资源位置(即此时N＝2)，即预留重传1的时频资源。并且，初传和重传1在时域上分布在32个时隙内。同理，在图3所示的TB1中，终端设备利用重传1的PSCCH中发送的第一侧行控制信息指示重传1和重传2的时频资源位置，重传1与重传2在时域上分布在32个时隙内。
同时，终端设备发送第一侧行控制信息时利用“Resource reservation period(资源预留周期)”域进行TB间的资源预留。例如图3中，终端设备在发送TB1的初传的第一侧行控制信息时，利用“Time resource assignment”和“Frequency resource assignment”域指示TB1初传和重传1的时频资源位置，记为{(t 1,f 1),(t 2,f 2)}。其中t 1、t 2代表TB1初传和重传1资源的时域位置，f 1、f 2代表相应的频域位置。如果该第一侧行控制信息中，“Resource reservation period”域的取值为100毫秒，则该SCI(Sidelink Control Information，侧行链路控制信息)同时指示了时频资源{(t1+100,f1),(t2+100,f2)}，这两个资源用于TB2初传和重传1的传输。同理，在TB1重传1中发送的第一侧行控制信息，也利用“Resource reservation period”域预留了TB2重传1和重传2的时频资源。在NR V2X中，“Resource reservation period”域可能的取值为0、1-99、100、200、300、400、500、600、700、800、900、1000毫秒，相比较LTE(Long Term Evaluation，长期演进)V2X更为灵活。但在每个资源池中，只配置了其中的e种取值，终端设备根据所用的资源池确定可能使用的值。记资源池配置中的e种取值为资源预留周期集合M，示例性地，e小于等于16。
此外，通过网络配置或预配置，上述TB间的预留可以以资源池为单位激活或去激活。当激活TB间的预留时，第一侧行控制信息中包括“Resource reservation period”域。当去激活TB间的预留时，第一侧行控制信息中不包括“Resource reservation period”域。在激活TB间的预留时，一般情况下，在触发资源重选之前，终端设备所用的“Resource reservation period”域的取值，即资源预留周期都不会变，终端设备每发送一次第一侧行控制信息，都利用其中的“Resource reservation period”域预留下个周期的资源，用于另一个TB的传输，从而达到周期性地半持续传输。
当终端设备工作在上述模式B下，终端设备可以通过侦听其他终端设备发送的PSCCH，获取其他终端设备发送的第一侧行控制信息，从而得知其他终端设备所预留的资源。终端设备在进行资源选择时，会排除其他终端设备预留的资源，从而避免资源碰撞。
在NR V2X系统中，上述模式B下，终端设备需要自行选择资源。
如图4所示，终端设备在时隙n触发资源选择或重选或时隙n是高层触发物理层上报候选资源集合的时隙，资源选择窗10从n+T 1开始，到n+T 2结束。0<＝T 1<＝T proc,1，当子载波间隔是15，30，60，120kHz时，T proc,1为3，5，9，17个时隙。T 2min<＝T 2<＝业务的剩余时延预算，T 2min的取值集合为{1,5,10,20}*2 μ个时隙，其中μ＝0,1,2,3对应于子载波间隔是15，30，60，120kHz的情况，终端设备根据自身待发送数据的优先级从该取值集合中确定T 2min。例如当子载波间隔是15kHz时，终端设备根据自身待发送数据的优先级从集合{1,5,10,20}中确定T 2min。当T 2min大于等于业务的剩余时延预算时，T 2等于业务的剩余时延预算。剩余时延预算即数据的时延要求的对应时刻与当前时刻的差值。例如时隙n到达的数据包，时延要求为50毫秒，假设一个时隙为1毫秒，如果当前时刻为时隙n，则剩余时延预算为50毫秒，若当前时刻 为时隙n+20，则剩余时延预算为30毫秒。
终端设备在n-T 0到n-T proc,0进行资源侦听(不包括n-T proc,0)，T 0的取值为100或1100毫秒。当子载波间隔是15，30，60，120kHz时，T proc,0为1，1，2，4个时隙。可选地，终端设备在资源侦听窗内属于其所用资源池的时隙中进行资源侦听。可选地，终端设备在每个时隙(除了自己的发送时隙)都会侦听其他终端设备发送的第一侧行控制信息，当时隙n触发资源选择或重选后，终端设备使用n-T 0到n-T proc,0资源侦听的结果。
Step 1：终端设备将资源选择窗10内所有属于终端设备所用资源池的可用资源作为资源集合A，集合A中的任意一个资源记为R(x,y)，x和y分别指示资源的频域位置和时域位置。记集合A中资源的初始数量为M total。终端设备根据资源侦听窗20内的未侦听时隙(Step 1-1)和/或资源侦听窗20内的资源侦听结果(Step 1-2)对资源集合A中的资源进行排除。终端设备判断资源R(x,y)或与资源R(x,y)对应的一系列周期性资源是否与Step 1-1中根据未侦听时隙确定的时隙或Step 1-2中根据侦听到的第一侧行控制信息确定的资源重叠，若重叠则从资源集合A中排除资源R(x,y)。
Step 1-1：如果终端设备在资源侦听窗20内时隙m发送数据，没有进行侦听，则终端设备将根据时隙m和终端设备所用资源池中每一种允许的资源预留周期，以该资源预留周期为间隔，确定对应的Q个时隙。若该Q个时隙与资源R(x,y)或与资源R(x,y)对应的一系列周期性资源重叠，则从资源集合A中排除资源R(x,y)。上述Q＝1或者
Figure PCTCN2021136592-appb-000001
(代表向上取整)。Tscal等于T2转化为毫秒后的值。Prx为终端设备所用资源池允许的资源预留周期的一种。可选地，与资源R(x,y)对应的一系列周期性资源为R(x,y+j*Ptxlg)，j＝0,1,2…Cresel-1。其中Cresel与终端设备生成的随机计数值相关，Ptxlg为Ptx转化为逻辑时隙后的数目。Ptx为终端设备的资源预留周期。例如图4子图(a)中为Cresel为3的情况，表示与资源R(x,y)对应的3个周期性资源(包括R(x,y))。可选地，当Prx<Tscal和/或n1-m小于或等于Prxlg时，
Figure PCTCN2021136592-appb-000002
其中，Prxlg为Prx转化为逻辑时隙后的数目。如果时隙n在终端设备所用资源池内，则n1为n，否则n1为n之后第一个属于终端设备所用资源池的时隙。可选地，所述Q个时隙为m+q*Prxlg，其中q为1,2…Q。
可选地，上述计算确定y+j*Ptxlg或m+q*Prxlg对应的时隙时，在终端设备所用资源池中确定。
例如图4中的子图(a)，终端设备在时隙m没有进行侦听，依次根据所用资源池配置中的资源预留周期集合M中每一种资源预留周期进行资源排除，对于其中某个资源预留周期1，假定Q值计算为2，则对应的Q个时隙为图4子图(a)中从时隙m映射的以资源预留周期1为间隔接下来的2个以横线阴影标识的时隙。对于其中某个资源预留周期2，假定Q值计算Q＝1，则对应的Q个时隙为图4子图(a)中从时隙m映射的以资源预留周期2为间隔的接下来的1个点状阴影标识的时隙。
终端设备将判断每一种预留周期对应的Q个时隙，是否与资源R(x,y)或与资源R(x,y)对应的一系列周期性资源重叠，若重叠则从资源集合A中排除资源R(x,y)。
可选地，当终端设备所用资源池去激活TB间的预留时，终端设备可以不执行上述Step 1-1。
可选地，当执行完Step1-1后，如果资源集合A中剩余资源小于M total*X，则将资源集合A初始化为资源选择窗10内所有属于终端设备所用资源池的可用资源再执行Step1-2。
Step 1-2：如果终端设备在资源侦听窗20的时隙m内侦听到PSCCH中传输的第一侧行控制信息，测量该PSCCH的SL-RSRP(Sidelink Reference Signal Received Power，侧行参考信号接收功率)或者该PSCCH调度的PSSCH的SL-RSRP(即与该PSCCH在同一时隙中发送的PSSCH的SL-RSRP)。
如果测量的SL-RSRP大于SL-RSRP阈值，且终端设备所用资源池激活TB间的资源预留，则终端设备将根据时隙m和侦听到的第一侧行控制信息中携带的资源预留周期，以该资源预留周期为间隔，确定对应的Q个时隙。终端设备假定在该Q个时隙中也收到了相同内容的第一侧行控制信息。终端设备将判断在时隙m收到的第一侧行控制信息和这些假定收到的Q个第一侧行控制信息的“Time resource assignment”和“Frequency resource assignment”域指示的资源与资源R(x,y)或与资源R(x,y)对应的一系列周期性资源是否重叠，若重叠则从集合A中排除对应资源R(x,y)。上述Q＝1或者
Figure PCTCN2021136592-appb-000003
(代表向上取整)。T scal等于T 2转化为毫秒后的值。P rx为侦听到的第一侧行控制信息中携带的资源预留周期。可选地，与资源R(x,y)对应的一系列周期性资源为R(x,y+j*Ptxlg)，j＝0,1,2…Cresel-1。其中Cresel与终端设备生成的随机计数值相关，Ptxlg为Ptx转化为逻辑时隙后的数目。Ptx为终端设备的资源预留周期。例如图4子图(b)中为Cresel为3的情况，表示与资源R(x,y)对应的3个周期性资源(包括R(x,y))。可选地，当Prx<Tscal和/或n1-m小于或等于Prxlg时，
Figure PCTCN2021136592-appb-000004
其中，Prxlg为Prx转化为逻辑时隙后的数目。如果时隙n在终端设备所用资源池内，则n1为n，否则n1为n之后第一个属于终端设备所用资源池的时隙。可选地，所述Q个时隙为m+q*Prxlg，其中q为1,2…Q。
可选地，上述计算确定y+j*Ptxlg或m+q*Prxlg对应的时隙时，在终端设备所用资源池中确定。
例如图4中的子图(b)，当终端设备所用资源池激活TB间的预留，如果终端设备在时隙m资源E(v,m)上侦听到PSCCH中的第一侧行控制信息，该第一侧行控制信息中的资源预留周期为P rx，假定Q值计算为1，终端设备将假定在时隙m+P rx上也收到了相同内容的第一侧行控制信息。终端设备将判断在时隙m收到的第一侧行控制信息和假定在时隙m+P rx收到的第一侧行控制信息的“Time resource assignment”和“Frequency resource assignment”域指示的资源1、2、3、4、5、6与资源R(x,y)或与资源R(x,y)对应的一系列周期性资源是否重叠，若重叠且满足RSRP条件则从资源集合A中排除资源R(x,y)。
如果终端设备测量的SL-RSRP大于SL-RSRP阈值，且终端设备所用资源池去激活TB间的资源预留，则终端设备只判断在时隙m收到的第一侧行控制信息的“Time resource assignment”与“Frequency resource assignment”域指示的资源是否与资源R(x,y)或与资源R(x,y)对应的一系列资源重叠，若重叠则从资源集合A中排除资源R(x,y)。
例如图4中的子图(b)，当终端设备所用资源池去激活TB间的预留，如果终端设备在时隙m资源E(v,m)上侦听到PSCCH中的第一侧行控制信息，则终端设备判断该第一侧行控制信息中“Time resource assignment”和“Frequency resource assignment”域指示的资源1、2、3与资源R(x,y)或与资源R(x,y)对应的一系列周期性资源是否重叠，若重叠且满足RSRP条件则从资源集合A中排除资源R(x,y)。
如果在上述资源排除后资源集合A中剩余资源不足M total*X，则将SL-RSRP阈值抬升3dB，重新执行Step 1。物理层将资源排除后的资源集合A作为候选资源集合上报给高层。
Step 2：高层从上报的候选资源集合中随机选择资源发送数据。即终端设备从候选资源集合中随机选择资源发送数据。
需要注意的是：
1.上述RSRP阈值是由终端设备侦听到的PSCCH中携带的优先级P1和终端设备待发送数据的优先级P2决定的。终端设备所用资源池的配置中包含一张SL-RSRP阈值表，该SL-RSRP阈值表包含了所有优先级组合对应的SL-RSRP阈值。资源池的配置可以是网络配置或者预配置的。
例如，如表1所示，假设P1与P2的优先级等级可选值均为0-7，则不同优先级组合对应的SL-RSRP阈值用γ ij表示，其中，γ ij中的i为优先级等级P1的取值，j为优先级等级P2的取值。
表1：SL-RSRP阈值表
Figure PCTCN2021136592-appb-000005
当终端设备侦听到其他终端设备发送的PSCCH，获取该PSCCH中传输的第一侧行控制信息中携带的优先级P1以及待发送数据的优先级P2，终端设备通过查表1的方式确定SL-RSRP阈值。
2.终端设备利用测量到的PSCCH-RSRP还是该PSCCH调度的PSSCH-RSRP与SL-RSRP阈值进行比较，取决于终端设备所用资源池的资源池配置。资源池的配置可以是网络配置或者预配置的。
3.上述X，X可能的取值为{20％,35％,50％}。终端设备所用资源池的配置中包含优先级与上述可能取值的对应关系，终端设备根据待发送数据的优先级及该对应关系，确定X的值。资源池配置可以是由网络配置或者预配置。
上述介绍为NR-V2X中的一种SL通信方式，即终端设备通过资源侦听自主选取传输资源，自行在侧行链路上进行数据传输。该SL通信的方式也可应用在手持终端与手持终端间的直接通信，行人与车辆间的直接通信等各种SL通信中。
在Release 17版本的标准化中，对于上述终端设备通过侦听进行自主资源选取的SL通信方式进一步实施优化，提出了终端设备间协作进行资源选取的SL通信方式。
例如图5所示，UE 1是进行自主资源选取的终端设备，在UE 1进行资源选取时还可以考虑来自UE 2的辅助信息，从而进一步避免选择的资源与其他UE发生资源碰撞，提升通信可靠性。
这种UE间协作的触发机制主要有两种：
(1)由UE 1发起，发送触发信息给UE 2，UE 2接收触发信息，并确定辅助信息发送给UE 1。
(2)由UE 2发起，在满足特定条件时，UE 2确定并发送辅助信息给UE 1。上述特定条件，比如侦 听到UE 1发送的资源与其他UE冲突，或者周期性确定并向UE 1发送辅助信息。
上述辅助信息，至少包括UE 2确定的资源集合。例如，上述资源集合中的资源为适合UE 1传输的资源或者上述资源集合中的资源为不适合UE 1传输的资源。例如，UE 2根据侦听到的第一侧行控制信息，即根据自身资源侦听结果，确定上述资源集合。
上述承载辅助信息可以通过第一侧行控制信息、第二侧行控制信息、PSSCH、MAC(Media Access Control，媒体接入控制)CE(Control Element，控制单元)、PC5-RRC(Radio Resource Control，无线资源控制)、PSFCH(Physical Sidelink Feedback Channel，物理侧行链路反馈信道)中的一种或多种。
目前已经支持UE 2发送不适合UE 1传输的资源集合(not preferred resource set)至UE 1，UE 1在进行资源排除时根据UE 2提供的资源集合进行资源排除。具体地，UE 1在上述Step 1-2之后根据UE 2提供的资源集合进行资源排除。在一些实施例中，UE 1选择资源的具体流程如下：
(1)UE 1初始化资源集合A为资源选择窗内所有属于终端所用资源池的可用资源，记资源集合A中包括的资源数目为M total；
(2)Step 1-1，UE 1根据未侦听时隙进行资源排除；
(3)Step 1-2，UE 1根据资源侦听结果进行资源排除；
(4)Step 1-3，UE 1根据UE 2提供的资源集合进行资源排除；
(5)如果经资源排除后的资源集合A中的剩余资源数目小于X*M total，则抬升RSRP阈值3dB重新执行步骤(1)，否则物理层向高层上报资源集合A。
(6)高层在资源集合A中选择一个或多个传输资源。
上述步骤(4)的引入相比较原有机制会导致UE 1额外进行资源排除，因此会导致UE 1多次提升RSRP阈值甚至导致在步骤(1)-(5)中无限循环。例如，X为50％，M total为100。UE 1在步骤(2)、(3)、(4)中排除的资源数目分别为30、20和30。当UE 1执行到步骤(5)时由于剩余资源数目不足50，则抬升RSRP阈值重新执行步骤(1)。从上文介绍内容得知，抬升RSRP阈值只能减少步骤(3)中排除资源的数目，因此即使在步骤(1)-(5)中循环不断提升RSRP阈值，步骤(3)中排除的资源数目减为0，依然无法跳出该循环。
因此，本申请提出在执行上述步骤(4)之后，或者在执行上述步骤(4)之前，或者在执行上述步骤(4)的过程中，增加适当的判断机制，以解决引入步骤(4)导致的上述问题。
下面，将通过几个实施例对本申请提供的技术方案进行介绍说明。
请参考图6，其示出了本申请一个实施例提供的资源排除方法的流程图。该方法可以由第一终端设备执行。该方法可以包括如下步骤：
步骤610，第一终端设备在对候选资源集合执行第一排除操作之后，若候选资源集合中的资源数目小于或等于第一数值，则第一终端设备将候选资源集合设置为第一排除操作之前的候选资源集合；其中，第一排除操作包括第一终端设备根据接收到的资源集合进行资源排除。
在一些实施例中，第一终端设备接收到的资源集合是第二终端设备提供或发送的。可选地，第二终端设备为除第一终端设备外的任意一个终端设备，或第一终端设备对应的接收端，或与第一终端设备进行终端设备间协作的另一设备。可选地，第一终端设备接收到的资源集合为不适合该第一终端设备传输的资源集合，该集合中包含一个或多个不适合该第一终端设备传输的资源。
在一些实施例中，第一数值与候选资源集合中的初始资源数目有关。例如，该第一数值可以是候选资源集合中的初始资源数目与某一系数的乘积，该系数可以是一个取值在区间(0,1)中的数值。可选地，第一数值为X*M total，M total为候选资源集合中的初始资源数目，X参见上文背景知识中的内容。即，X可能的取值为{20％,35％,50％}。终端设备所用资源池的配置中包含优先级与上述可能取值的对应关系，终端设备根据待发送数据的优先级及该对应关系，确定X的值。资源池配置可以是由网络配置或者预配置。
另外，候选资源集合中的初始资源数目，是指第一终端设备在初始化该候选资源集合时，该候选资源集合中包含的资源数目。按照上文背景知识部分的介绍，即第一终端设备在初始化资源集合A时，该初始化的资源集合A中包含的资源数目，可记为M total。
结合上文介绍，第一排除操作即为步骤(4)，UE 1在执行步骤(4)之后，若资源集合A中的资源数目小于(或等于)X*M total，则UE 1将资源集合A设置为执行该步骤(4)之前的资源集合A。也就是说，UE 1将资源集合A设置为执行步骤(3)之后得到的资源集合A。
在一些实施例中，第一终端设备在执行第一排除操作的过程中，若候选资源集合中的第一资源或第一资源对应的周期性资源，与该第一终端设备接收到的资源集合中的第二资源重叠，则第一终端设备将该第一资源从候选资源集合中排除。其中，第二资源是第一终端设备接收到的资源集合中的任意一个时频资源， 或接收到的资源集合中的任意一个时隙，或接收到的资源集合中的任意一个子信道。需要说明的是，在本申请中，一个时频资源在时域上对应一个时隙，在频域上对应一个或多个子信道。示例性地，一个时频资源在时域上占一个时隙，在频域上占一个或多个子信道。在本申请中，一个子信道可以指代时域上对应一个时隙，频域宽度为一个子信道的时频资源。示例性地，一个子信道可以指代时域上占一个时隙，频域宽度为一个子信道的时频资源。
可选地，第一资源为资源R(x,y)，x和y分别用于指示第一资源的频域位置和时域位置。第一资源对应的周期性资源为R(x,y+j*Ptxlg)，j是属于[0,Cresel-1]的整数，其中Cresel与第一终端设备生成的随机计数值相关，Ptxlg为Ptx转化为逻辑时隙后的数目，Ptx为第一终端设备的资源预留周期。另外，本申请中提及的“逻辑时隙”是相对于物理时隙的概念，例如有10个物理时隙，但这10个物理时隙中，只有5个时隙是属于第一终端设备所用资源池的，则逻辑时隙数为5。这5个时隙在物理上有可能是不连续的，但在逻辑上是连续的。
示例性地，如图7所示，UE 1在时隙n触发资源选择或重选或时隙n是高层触发物理层上报候选资源集合的时隙或时隙n根据收到资源集合的时隙确定，UE 1确定从n+T 1到n+T 2的资源选择窗10。示例性地，T 1和T 2与背景知识部分一致。UE 1确定从n-T 0到n-T proc,0的资源侦听窗20。可选地，资源侦听窗20不包括n-T proc,0。示例性地，T 0和T proc,0参见背景知识部分。
(1)UE 1初始化资源集合A为资源选择窗内所有属于该UE 1所用资源池的可用资源，记资源集合A中包括的资源数目为M total，即资源集合A中的初始资源数目为M total。资源集合A中的任意一个资源记为R(x,y)，x和y分别用于指示资源的频域位置和时域位置。
(2)Step 1-1，UE 1根据未侦听时隙进行资源排除。如果资源R(x,y)或与资源R(x,y)对应的一系列周期性资源与UE 1根据未侦听时隙确定的时隙重叠，则从资源集合A中排除资源R(x,y)。示例性地，参照背景知识部分Step 1-1进行资源排除。
可选地，当UE 1所用资源池去激活TB间的预留时，UE 1可以不执行上述Step 1-1。
可选地，当执行完Step 1-1后，资源集合A中剩余的资源数目小于X*M total，则UE 1将资源集合A初始化为资源选择窗内所有属于该UE 1所用资源池的可用资源，再执行Step 1-2。
(3)Step 1-2，UE 1根据资源侦听结果进行资源排除。如果资源R(x,y)或与资源R(x,y)对应的一系列周期性资源与UE 1根据侦听到的第一侧行控制信息确定的资源重叠并且满足RSRP阈值条件，则从资源集合A中排除资源R(x,y)。示例性地，参照背景知识部分Step1-2进行资源排除。
(4)Step 1-3，UE 1根据接收到的资源集合进行资源排除。
UE 1应从资源集合A中排除任意一个资源R(x,y)或者说剩余的任意一个资源R(x,y)或者说仍在资源集合A中的任意一个资源R(x,y)，如果满足如下条件：R(x,y)或与R(x,y)对应的一系列周期性资源与UE 1接收到的一个或多个资源集合中包含的任意一个时频资源或任意一个时隙或任意一个子信道重叠。
可选地，UE 1接收到的一个或多个资源集合是UE 2提供的或UE 2发送的。示例性地，UE 2为除UE 1外的任意一个终端设备。示例性地，UE 2为UE 1的接收端。示例性地，UE 2为与UE 1进行终端间协作的终端设备。
例如图7中，资源R(x,y)与收到的资源集合中的资源O(a,b)重叠，则UE 1从资源集合A中排除资源R(x,y)。对于资源O(a,b)，a和b分别用于表示该资源的频域位置和时域位置。
可选地，与资源R(x,y)对应的一系列周期性资源为R(x,y+j*Ptxlg)，j＝0,1,2…Cresel-1，其中Cresel与UE 1生成的随机计数值相关，Ptxlg为Ptx转化为逻辑时隙后的数目，Ptx为UE 1的资源预留周期。例如图7中示出的是Cresel为3的情形。
可选地，如果UE 1根据接收到的资源集合进行资源排除后(即执行上述Step1-3后)，资源集合A中剩余的资源数目小于或等于X*M total，UE 1将资源集合A重新设置为执行Step 1-3之前的资源集合A，或者说UE 1放弃Step 1-3中资源排除的结果或者说设置为执行Step 1-2之后的资源集合A。之后，UE 1执行如下步骤(5)。
(5)如果经资源排除后的资源集合A中的剩余资源数目小于X*M total，则抬升RSRP阈值3dB重新执行步骤(1)，否则物理层向高层上报资源集合A。
(6)高层在资源集合A中选择一个或多个传输资源。
可选地，上述UE 1收到的资源集合为不适合UE 1传输的资源集合。
另外，上述步骤如果没有特别说明，则顺序执行。X参见背景知识部分。
综上所述，本实施例提供的技术方案，在第一终端设备执行第一排除操作(即根据接收到的资源集合进行资源排除)之后，如果候选资源集合中的资源数目小于或等于第一数值，则将候选资源集合设置为第一排除操作之前的候选资源集合，从而解决了第一排除操作的引入导致的RSRP阈值多次提升或导致的无限循环问题，有助于缩短整个资源排除过程的耗时，提升资源排除过程的效率。
请参考图8，其示出了本申请另一个实施例提供的资源排除方法的流程图。该方法可以由第一终端设备执行。该方法可以包括如下步骤：
步骤810，第一终端设备在对候选资源集合执行第一排除操作之后，若候选资源集合中的资源数目小于或等于第一数值，则第一终端设备将第一排除操作中排除的资源放入候选资源集合；其中，第一排除操作包括第一终端设备根据接收到的资源集合进行资源排除。
在一些实施例中，第一终端设备接收到的资源集合是第二终端设备提供或发送的。可选地，第二终端设备为除第一终端设备外的任意一个终端设备，或第一终端设备对应的接收端，或与第一终端设备进行终端设备间协作的另一设备。可选地，第一终端设备接收到的资源集合为不适合该第一终端设备传输的资源集合，该集合中包含一个或多个不适合该第一终端设备传输的资源。
在一些实施例中，第一数值与候选资源集合中的初始资源数目有关。例如，该第一数值可以是候选资源集合中的初始资源数目与某一系数的乘积，该系数可以是一个取值在区间(0,1)中的数值。可选地，第一数值为X*M total，M total为候选资源集合中的初始资源数目，X参见上文背景知识中的内容。即，X可能的取值为{20％,35％,50％}。终端设备所用资源池的配置中包含优先级与上述可能取值的对应关系，终端设备根据待发送数据的优先级及该对应关系，确定X的值。资源池配置可以是由网络配置或者预配置。
另外，候选资源集合中的初始资源数目，是指第一终端设备在初始化该候选资源集合时，该候选资源集合中包含的资源数目。按照上文背景知识部分的介绍，即第一终端设备在初始化资源集合A时，该初始化的资源集合A中包含的资源数目，可记为M total。
结合上文介绍，第一排除操作即为步骤(4)，UE 1在执行步骤(4)之后，若资源集合A中的资源数目小于(或等于)X*M total，则UE 1将在执行步骤(4)的过程中排除的资源放回资源集合A。可选地，UE 1可以将在执行步骤(4)的过程中排除的全部资源放回资源集合A(这种情况的最终结果相当于上文图6实施例所介绍的那样，UE 1将资源集合A设置为执行该步骤(4)之前的资源集合A)，UE 1也可以将在执行步骤(4)的过程中排除的部分资源放回资源集合A。
在一些实施例中，第一终端设备将第一排除操作中排除的资源放入候选资源集合，包括：第一终端设备从第一排除操作中排除的资源中，按照第一方式确定资源放入候选资源集合。在一个示例中，第一方式为随机选择方式。在另一个示例中，第一方式为按序选择方式。可选地，按序选择方式为：先按时域选择后按频域选择的方式，或者，先按频域选择后按时域选择的方式。以先按时域选择后按频域选择的方式为例，可以是按照先时域递增再频域递增进行选择的方式，例如在第一排除操作中排除的资源为R(1,2)、R(2,2)、R(3,2)、R(1,3)和R(2,3)，先时域后频域表示依次将R(1,2)、R(1,3)、R(2,2)、R(2,3)、R(3,2)放入资源集合A，即先时域递增再频域递增。以先按频域选择后按时域选择的方式为例，可以是按照先频域递增再时域递增进行选择的方式，例如在第一排除操作中排除的资源为R(1,2)、R(2,2)、R(3,2)、R(1,3)和R(2,3)，先频域后时域表示依次将R(1,2)、R(2,2)、R(3,2)、R(1,3)、R(2,3)放入资源集合A，即先频域递增再时域递增。
在一些实施例中，按照第一方式确定资源放入候选资源集合的停止条件为以下任意一种：
1.第一排除操作中排除的资源全部被放入候选资源集合；
2.候选资源集合中的资源数目大于或等于第一数值；
3.候选资源集合中的资源数目大于或等于第二数值，第二数值不等于第一数值。
可选地，第二数值是第一数值与偏移量之和，该偏移量可以大于0，也可以小于0。例如，第一数值为X*M total，第二数值为X*Mtotal-α或X*Mtotal+β，α和β均为大于0的数值。可选地，第二数值由网络配置，或预配置，或取决于第一终端设备的实现，或标准规定的预设值。可选地，第二数值和第一数值之间的偏移量由网络配置，或预配置，或取决于第一终端设备的实现，或标准规定的预设值。
可选地，第一终端设备按照第一方式确定资源放入候选资源集合，直至满足上述停止条件。示例性地，第一终端设备按照第一方式确定资源放入候选资源集合，直至第一排除操作中排除的资源全部被放入候选资源集合。或者，第一终端设备按照第一方式确定资源放入候选资源集合，直至候选资源集合中的资源数目大于或等于第一数值。或者，第一终端设备按照第一方式确定资源放入候选资源集合，直至候选资源集合中的资源数目大于或等于第二数值。
在一些实施例中，第一终端设备在执行第一排除操作的过程中，若候选资源集合中的第一资源或第一资源对应的周期性资源，与该第一终端设备接收到的资源集合中的第二资源重叠，则第一终端设备将该第一资源从候选资源集合中排除。其中，第二资源是第一终端设备接收到的资源集合中的任意一个时频资源，或接收到的资源集合中的任意一个时隙，或接收到的资源集合中的任意一个子信道。需要说明的是，在本申请中，一个时频资源在时域上对应一个时隙，在频域上对应一个或多个子信道。示例性地，一个时频资源在时域上占一个时隙，在频域上占一个或多个子信道。在本申请中，一个子信道可以指代时域上对应一个时隙，频域宽度为一个子信道的时频资源。示例性地，一个子信道可以指代时域上占一个时隙，频域宽 度为一个子信道的时频资源。
可选地，第一资源为资源R(x,y)，x和y分别用于指示第一资源的频域位置和时域位置。第一资源对应的周期性资源为R(x,y+j*Ptxlg)，j是属于[0,Cresel-1]的整数，其中Cresel与第一终端设备生成的随机计数值相关，Ptxlg为Ptx转化为逻辑时隙后的数目，Ptx为第一终端设备的资源预留周期。另外，本申请中提及的“逻辑时隙”是相对于物理时隙的概念，例如有10个物理时隙，但这10个物理时隙中，只有5个时隙是属于第一终端设备所用资源池的，则逻辑时隙数为5。这5个时隙在物理上有可能是不连续的，但在逻辑上是连续的。
示例性地，如图7所示，UE 1在时隙n触发资源选择或重选或时隙n是高层触发物理层上报候选资源集合的时隙或时隙n根据收到资源集合的时隙确定，UE 1确定从n+T 1到n+T 2的资源选择窗10。示例性地，T 1和T 2与背景知识部分一致。UE 1确定从n-T 0到n-T proc,0的资源侦听窗20。可选地，资源侦听窗20不包括n-T proc,0。示例性地，T 0和T proc,0参见背景知识部分。
(1)UE 1初始化资源集合A为资源选择窗内所有属于该UE 1所用资源池的可用资源，记资源集合A中包括的资源数目为M total，即资源集合A中的初始资源数目为M total。资源集合A中的任意一个资源记为R(x,y)，x和y分别用于指示资源的频域位置和时域位置。
(2)Step 1-1，UE 1根据未侦听时隙进行资源排除。如果资源R(x,y)或与资源R(x,y)对应的一系列周期性资源与UE 1根据未侦听时隙确定的时隙重叠，则从资源集合A中排除资源R(x,y)。示例性地，参照背景知识部分Step 1-1进行资源排除。
可选地，当UE 1所用资源池去激活TB间的预留时，UE 1可以不执行上述Step 1-1。
可选地，当执行完Step 1-1后，资源集合A中剩余的资源数目小于X*M total，则UE 1将资源集合A初始化为资源选择窗内所有属于该UE 1所用资源池的可用资源，再执行Step 1-2。
(3)Step 1-2，UE 1根据资源侦听结果进行资源排除。如果资源R(x,y)或与资源R(x,y)对应的一系列周期性资源与UE 1根据侦听到的第一侧行控制信息确定的资源重叠并且满足RSRP阈值条件，则从资源集合A中排除资源R(x,y)。示例性地，参照背景知识部分Step1-2进行资源排除。
(4)Step 1-3，UE 1根据接收到的资源集合进行资源排除。
UE 1应从资源集合A中排除任意一个资源R(x,y)或者说剩余的任意一个资源R(x,y)或者说仍在资源集合A中的任意一个资源R(x,y)，如果满足如下条件：R(x,y)或与R(x,y)对应的一系列周期性资源与UE 1接收到的一个或多个资源集合中包含的任意一个时频资源或任意一个时隙或任意一个子信道重叠。
可选地，UE 1接收到的一个或多个资源集合是UE 2提供的或UE 2发送的。示例性地，UE 2为除UE 1外的任意一个终端设备。示例性地，UE 2为UE 1的接收端。示例性地，UE 2为与UE 1进行终端间协作的终端设备。
例如图7中，资源R(x,y)与收到的资源集合中的资源O(a,b)重叠，则UE 1从资源集合A中排除资源R(x,y)。对于资源O(a,b)，a和b分别用于表示该资源的频域位置和时域位置。
可选地，与资源R(x,y)对应的一系列周期性资源为R(x,y+j*Ptxlg)，j＝0,1,2…Cresel-1，其中Cresel与UE 1生成的随机计数值相关，Ptxlg为Ptx转化为逻辑时隙后的数目，Ptx为UE 1的资源预留周期。例如图7中示出的是Cresel为3的情形。
可选地，如果UE 1根据接收到的资源集合进行资源排除后(即执行上述Step1-3后)，资源集合A中剩余资源数目小于或等于X*Mtotal，UE 1从Step 1-3中排除的资源中确定资源放入资源集合A，直至Step 1-3中排除的资源均被放回资源集合A或资源集合A中的资源数目大于或等于X*Mtotal或X*Mtotal-α或X*Mtotal+β。所述α或β由网络配置或预配置或取决于终端实现或为标准规定的预设值。之后UE 1执行如下步骤(5)。UE 1从Step 1-3中排除的资源中确定资源放入资源集合A的方式，包括随机选择方式或按序选择方式，这在上文实施例中已经介绍说明，此处不再赘述。
(5)如果经资源排除后的资源集合A中的剩余资源数目小于X*M total，则抬升RSRP阈值3dB重新执行步骤(1)，否则物理层向高层上报资源集合A。
(6)高层在资源集合A中选择一个或多个传输资源。
可选地，上述UE 1收到的资源集合为不适合UE 1传输的资源集合。
另外，上述步骤如果没有特别说明，则顺序执行。X参见背景知识部分。
综上所述，本实施例提供的技术方案，在第一终端设备执行第一排除操作(即根据接收到的资源集合进行资源排除)之后，如果候选资源集合中的资源数目小于或等于第一数值，则将第一排除操作中排除的资源放入候选资源集合，从而解决了第一排除操作的引入导致的RSRP阈值多次提升或导致的无限循环问题，有助于缩短整个资源排除过程的耗时，提升资源排除过程的效率。
请参考图9，其示出了本申请另一个实施例提供的资源排除方法的流程图。该方法可以由第一终端设 备执行。该方法可以包括如下步骤：
步骤910，第一终端设备在执行第一排除操作的过程中，若候选资源集合中的资源数目小于或等于第三数值，则第一终端设备停止第一排除操作；其中，第一排除操作包括第一终端设备根据接收到的资源集合进行资源排除。
在一些实施例中，第一终端设备接收到的资源集合是第二终端设备提供或发送的。可选地，第二终端设备为除第一终端设备外的任意一个终端设备，或第一终端设备对应的接收端，或与第一终端设备进行终端设备间协作的另一设备。可选地，第一终端设备接收到的资源集合为不适合该第一终端设备传输的资源集合，该集合中包含一个或多个不适合该第一终端设备传输的资源。
在一些实施例中，第一数值与候选资源集合中的初始资源数目有关。例如，该第一数值可以是候选资源集合中的初始资源数目与某一系数的乘积，该系数可以是一个取值在区间(0,1)中的数值。可选地，第一数值为X*M total，M total为候选资源集合中的初始资源数目，X参见上文背景知识中的内容。即，X可能的取值为{20％,35％,50％}。终端设备所用资源池的配置中包含优先级与上述可能取值的对应关系，终端设备根据待发送数据的优先级及该对应关系，确定X的值。资源池配置可以是由网络配置或者预配置。
另外，候选资源集合中的初始资源数目，是指第一终端设备在初始化该候选资源集合时，该候选资源集合中包含的资源数目。按照上文背景知识部分的介绍，即第一终端设备在初始化资源集合A时，该初始化的资源集合A中包含的资源数目，可记为M total。
结合上文介绍，第一排除操作即为步骤(4)，UE 1在执行步骤(4)的过程中，若资源集合A中的资源数目小于或等于第三数值，则UE 1停止执行该步骤(4)。可选地，UE 1在停止执行该步骤(4)之后，UE 1执行步骤(5)。
在一个示例中，第三数值等于第一数值。例如，第一数值为X*M total，那么该第三数值也为X*M total。
在另一个示例中，第三数值不等于第一数值。可选地，第三数值是第一数值与偏移量之和，该偏移量可以大于0，也可以小于0。例如，第一数值为X*M total，第三数值为X*Mtotal-α或X*Mtotal+β，α和β均为大于0的数值。
可选地，第三数值由网络配置，或预配置，或取决于第一终端设备的实现，或标准规定的预设值。
可选地，第三数值和第一数值之间的偏移量由网络配置，或预配置，或取决于第一终端设备的实现，或标准规定的预设值。
另外，有关第一终端设备执行第一排除操作的具体过程，可参见上文实施例中的介绍说明，本实施例对此不再赘述。
综上所述，本实施例提供的技术方案，在第一终端设备执行第一排除操作(即根据接收到的资源集合进行资源排除)的过程中，如果候选资源集合中的资源数目小于或等于第三数值，则停止第一排除操作，从而解决了第一排除操作的引入导致的RSRP阈值多次提升或导致的无限循环问题，有助于缩短整个资源排除过程的耗时，提升资源排除过程的效率。
需要说明的是，图9所示实施例提供的方案可以单独实施，也可以和上述图6或图8所示实施例提供的方案组合实施，或者还可以和下述图10所示实施例提供的方案组合实施，本申请对此不作限定。
请参考图10，其示出了本申请另一个实施例提供的资源排除方法的流程图。该方法可以由第一终端设备执行。该方法可以包括如下步骤：
步骤1010，第一终端设备在对候选资源集合执行第二排除操作之后，若满足第一条件，则第一终端设备对第二排除操作之后的候选资源集合执行第一排除操作；其中，第一排除操作包括第一终端设备根据接收到的资源集合进行资源排除，第二排除操作包括第一终端设备根据未侦听时隙进行资源排除和/或根据资源侦听结果进行资源排除；第一条件包括以下至少一项：第二排除操作之后的候选资源集合中的资源数目满足第一子条件，接收到的资源集合中的资源数目满足第二子条件。
在一些实施例中，第一终端设备接收到的资源集合是第二终端设备提供或发送的。可选地，第二终端设备为除第一终端设备外的任意一个终端设备，或第一终端设备对应的接收端，或与第一终端设备进行终端设备间协作的另一设备。可选地，第一终端设备接收到的资源集合为不适合该第一终端设备传输的资源集合，该集合中包含一个或多个不适合该第一终端设备传输的资源。
在一些实施例中，第一数值与候选资源集合中的初始资源数目有关。例如，该第一数值可以是候选资源集合中的初始资源数目与某一系数的乘积，该系数可以是一个取值在区间(0,1)中的数值。可选地，第一数值为X*M total，M total为候选资源集合中的初始资源数目，X参见上文背景知识中的内容。即，X可能的取值为{20％,35％,50％}。终端设备所用资源池的配置中包含优先级与上述可能取值的对应关系，终端设备根据待发送数据的优先级及该对应关系，确定X的值。资源池配置可以是由网络配置或者预配置。
另外，候选资源集合中的初始资源数目，是指第一终端设备在初始化该候选资源集合时，该候选资源 集合中包含的资源数目。按照上文背景知识部分的介绍，即第一终端设备在初始化资源集合A时，该初始化的资源集合A中包含的资源数目，可记为M total。
结合上文介绍，第一排除操作即为步骤(4)，第二排除操作包括步骤(2)和/或(3)，UE 1在对资源集合A执行步骤(2)和/或(3)之后，若满足第一条件，则UE 1对执行上述步骤(2)和/或(3)之后得到的资源集合A继续进行步骤(4)。可选地，若不满足第一条件，则UE 1对执行上述步骤(2)和/或(3)之后得到的资源集合A不执行步骤(4)，例如可以直接执行步骤(5)。
可选地，第一条件可以包括第一子条件和/或第二子条件，该第一子条件是基于第二排除操作之后的候选资源集合中的资源数目设定的条件，第二子条件是基于第一终端设备接收到的资源集合中的资源数目设定的条件。
在一些实施例中，第一子条件为：第二排除操作之后的候选资源集合中的资源数目与第一数值之间的差值大于或等于第一阈值。可选地，第一数值为X*M total。
可选地，第一阈值由网络配置，或预配置，或取决于第一终端设备的实现，或标准规定的预设值。
可选地，第一阈值为第一终端设备接收到的资源集合中的资源数目。
可选地，第一阈值为第一终端设备接收到的资源集合中的资源数目与第五数值之和，该第五数值为大于或等于0的整数。例如，第五数值记为L，第一阈值＝第一终端设备接收到的资源集合中的资源数目+L，L为大于或等于0的整数。
在一些实施例中，第一子条件为：第二排除操作之后的候选资源集合中的资源数目和第四数值的乘积，与第一数值和第四数值的乘积之间的差值大于或等于第二阈值。可选地，第一数值为X*M total，第四数值为一个候选资源对应的子信道数目，第四数值可记为M_subchannel。
可选地，第二阈值由网络配置，或预配置，或取决于第一终端设备的实现，或标准规定的预设值。
可选地，第二阈值为第一终端设备接收到的资源集合中的子信道数目。
可选地，第二阈值为第一终端设备接收到的资源集合中的子信道数目与第六数值之和，第六数值为大于或等于0的整数。例如，第六数值记为L，第二阈值＝第一终端设备接收到的资源集合中的子信道数目+L，L为大于或等于0的整数。
在一些实施例中，第一子条件为：第二排除操作之后的候选资源集合中的资源数目大于或等于第三阈值。
可选地，第三阈值由网络配置，或预配置，或取决于第一终端设备的实现，或标准规定的预设值。
可选地，第三阈值为候选资源集合中的初始资源数目和第七数值的乘积。例如，第七数值记为U，则第三阈值为U*M total。可选地，第七数值由网络配置，或预配置，或取决于第一终端设备的实现，或标准规定的预设值。
在一些实施例中，第一子条件为：第二排除操作之后的候选资源集合中的资源数目和第四数值的乘积大于或等于第四阈值。
可选地，第四阈值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
可选地，第四阈值为候选资源集合中的初始资源数目、第七数值和第四数值的乘积。例如，第七数值记为U，第四数值记为M_subchannel，表示一个候选资源对应的子信道数目，则第三阈值为U*M total*M_subchannel。可选地，第七数值由网络配置，或预配置，或取决于第一终端设备的实现，或标准规定的预设值。
在一些实施例中，第二子条件为：第一终端设备接收到的资源集合中的资源数目小于或等于第五阈值。
可选地，第五阈值由网络配置，或预配置，或取决于第一终端设备的实现，或标准规定的预设值。
可选地，第五阈值为第二排除操作之后的候选资源集合中的资源数目与第一数值的差值。可选地，第一数值为X*M total。
在一些实施例中，第二子条件为：第一终端设备接收到的资源集合中的子信道数目小于或等于第六阈值。
可选地，第六阈值由网络配置，或预配置，或取决于第一终端设备的实现，或标准规定的预设值。
可选地，第六阈值为第二排除操作之后的候选资源集合中的资源数目和第四数值的乘积，与第一数值与第四数值的乘积之间的差值。可选地，第一数值为X*M total，第四数值为一个候选资源对应的子信道数目，第四数值可记为M_subchannel。
在一些实施例中，第一终端设备在执行第一排除操作的过程中，若第二排除操作之后的候选资源集合中的第一资源或第一资源对应的周期性资源，与第一终端设备接收到的资源集合中的第二资源重叠，则第一终端设备将第一资源从候选资源集合中排除。其中，第二资源是第一终端设备接收到的资源集合中的任意一个时频资源，或接收到的资源集合中的任意一个时隙，或接收到的资源集合中的任意一个子信道。需要说明的是，在本申请中，一个时频资源在时域上对应一个时隙，在频域上对应一个或多个子信道。示例 性地，一个时频资源在时域上占一个时隙，在频域上占一个或多个子信道。在本申请中，一个子信道可以指代时域上对应一个时隙，频域宽度为一个子信道的时频资源。示例性地，一个子信道可以指代时域上占一个时隙，频域宽度为一个子信道的时频资源。
可选地，第一资源为资源R(x,y)，x和y分别用于指示第一资源的频域位置和时域位置。第一资源对应的周期性资源为R(x,y+j*Ptxlg)，j是属于[0,Cresel-1]的整数，其中Cresel与第一终端设备生成的随机计数值相关，Ptxlg为Ptx转化为逻辑时隙后的数目，Ptx为第一终端设备的资源预留周期。另外，本申请中提及的“逻辑时隙”是相对于物理时隙的概念，例如有10个物理时隙，但这10个物理时隙中，只有5个时隙是属于第一终端设备所用资源池的，则逻辑时隙数为5。这5个时隙在物理上有可能是不连续的，但在逻辑上是连续的。
示例性地，如图7所示，UE 1在时隙n触发资源选择或重选或时隙n是高层触发物理层上报候选资源集合的时隙或时隙n根据收到资源集合的时隙确定，UE 1确定从n+T 1到n+T 2的资源选择窗10。示例性地，T 1和T 2与背景知识部分一致。UE 1确定从n-T 0到n-T proc,0的资源侦听窗20。可选地，资源侦听窗20不包括n-T proc,0。示例性地，T 0和T proc,0参见背景知识部分。
(1)UE 1初始化资源集合A为资源选择窗内所有属于该UE 1所用资源池的可用资源，记资源集合A中包括的资源数目为M total，即资源集合A中的初始资源数目为M total。资源集合A中的任意一个资源记为R(x,y)，x和y分别用于指示资源的频域位置和时域位置。
(2)Step 1-1，UE 1根据未侦听时隙进行资源排除。如果资源R(x,y)或与资源R(x,y)对应的一系列周期性资源与UE 1根据未侦听时隙确定的时隙重叠，则从资源集合A中排除资源R(x,y)。示例性地，参照背景知识部分Step 1-1进行资源排除。
可选地，当UE 1所用资源池去激活TB间的预留时，UE 1可以不执行上述Step 1-1。
可选地，当执行完Step 1-1后，资源集合A中剩余的资源数目小于X*M total，则UE 1将资源集合A初始化为资源选择窗内所有属于该UE 1所用资源池的可用资源，再执行Step 1-2。
(3)Step 1-2，UE 1根据资源侦听结果进行资源排除。如果资源R(x,y)或与资源R(x,y)对应的一系列周期性资源与UE 1根据侦听到的第一侧行控制信息确定的资源重叠并且满足RSRP阈值条件，则从资源集合A中排除资源R(x,y)。示例性地，参照背景知识部分Step1-2进行资源排除。
(4)当满足第一条件时，执行Step 1-3，UE 1根据接收到的资源集合进行资源排除。
有关第一条件的介绍说明可参见上文实施例，此处仅做一些示例性说明。
示例性地，第一条件为：在执行完Step1-2后，资源集合A中资源数目大于或等于U*M total。U由网络配置或预配置。
示例性地，第一条件为：在执行完Step1-2后，资源集合A中资源数目*M_subchannel与X*M total*M_subchannel的差值大于或等于网络配置或预配置的阈值。
示例性地，第一条件为：在执行完Step1-2后，资源集合A中资源数目*M_subchannel与X*M total*M_subchannel的差值大于或等于接收到的资源集合中包含的子信道数目+L。L由网络配置或预配置。
UE 1根据接收到的资源集合进行资源排除包括：
UE 1应从资源集合A中排除任意一个资源R(x,y)或者说剩余的任意一个资源R(x,y)或者说仍在资源集合A中的任意一个资源R(x,y)，如果满足如下条件：R(x,y)或与R(x,y)对应的一系列周期性资源与UE 1接收到的一个或多个资源集合中包含的任意一个时频资源或任意一个时隙或任意一个子信道重叠。
可选地，UE 1接收到的一个或多个资源集合是UE 2提供的或UE 2发送的。示例性地，UE 2为除UE 1外的任意一个终端设备。示例性地，UE 2为UE 1的接收端。示例性地，UE 2为与UE 1进行终端间协作的终端设备。
例如图7中，资源R(x,y)与收到的资源集合中的资源O(a,b)重叠，则UE 1从资源集合A中排除资源R(x,y)。对于资源O(a,b)，a和b分别用于表示该资源的频域位置和时域位置。
可选地，与资源R(x,y)对应的一系列周期性资源为R(x,y+j*Ptxlg)，j＝0,1,2…Cresel-1，其中Cresel与UE 1生成的随机计数值相关，Ptxlg为Ptx转化为逻辑时隙后的数目，Ptx为UE 1的资源预留周期。例如图7中示出的是Cresel为3的情形。
(5)如果经资源排除后的资源集合A中的剩余资源数目小于X*M total，则抬升RSRP阈值3dB重新执行步骤(1)，否则物理层向高层上报资源集合A。
(6)高层在资源集合A中选择一个或多个传输资源。
可选地，上述UE 1收到的资源集合为不适合UE 1传输的资源集合。
另外，上述步骤如果没有特别说明，则顺序执行。X参见背景知识部分。
综上所述，本实施例提供的技术方案，在第一终端设备执行第一排除操作(即根据接收到的资源集合 进行资源排除)之前，先判断是否满足执行该第一排除操作的条件，如果满足条件才执行该第一排除操作，从而解决了第一排除操作的引入导致的RSRP阈值多次提升或导致的无限循环问题，有助于缩短整个资源排除过程的耗时，提升资源排除过程的效率。
需要说明的是，图10所示实施例提供的方案可以单独实施，也可以和上述图6、图8或图9所示实施例提供的方案组合实施，本申请对此不作限定。
下述为本申请装置实施例，可以用于执行本申请方法实施例。对于本申请装置实施例中未披露的细节，请参照本申请方法实施例。
请参考图11，其示出了本申请一个实施例提供的资源排除装置的框图。该装置具有实现上述方法示例的功能，所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该装置可以是上文介绍的第一终端设备，也可以设置在第一终端设备中。如图11所示，该装置1100可以包括：处理模块1110。
在一示例性实施例中，处理模块1110，用于在对候选资源集合执行第一排除操作之后，若所述候选资源集合中的资源数目小于或等于第一数值，则将所述候选资源集合设置为所述第一排除操作之前的候选资源集合；其中，所述第一排除操作包括第一终端设备根据接收到的资源集合进行资源排除。
在一示例性实施例中，处理模块1110，用于在对候选资源集合执行第一排除操作之后，若所述候选资源集合中的资源数目小于或等于第一数值，则将所述第一排除操作中排除的资源放入所述候选资源集合；其中，所述第一排除操作包括第一终端设备根据接收到的资源集合进行资源排除。
在一示例性实施例中，处理模块1110，用于在执行所述第一排除操作的过程中，若所述候选资源集合中的资源数目小于或等于第三数值，则停止所述第一排除操作；其中，所述第三数值等于或不等于所述第一数值。
在一示例性实施例中，处理模块1110，用于在对候选资源集合执行第二排除操作之后，若满足第一条件，则对所述第二排除操作之后的候选资源集合执行第一排除操作；其中，所述第一排除操作包括第一终端设备根据接收到的资源集合进行资源排除，所述第二排除操作包括所述第一终端设备根据未侦听时隙进行资源排除和/或根据资源侦听结果进行资源排除；所述第一条件包括以下至少一项：所述第二排除操作之后的候选资源集合中的资源数目满足第一子条件，所述接收到的资源集合中的资源数目满足第二子条件。
需要说明的是，上述实施例提供的装置在实现其功能时，仅以上述各个功能模块的划分进行举例说明，实际应用中，可以根据实际需要而将上述功能分配由不同的功能模块完成，即将设备的内容结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。有关装置实施例中未详细说明的细节，可参考上述方法实施例。
请参考图12，其示出了本申请一个实施例提供的终端设备的结构示意图。该终端设备1200可以包括：处理器1201、收发器1202以及存储器1203。
处理器1201包括一个或者一个以上处理核心，处理器1201通过运行软件程序以及模块，从而执行各种功能应用以及信息处理。
收发器1202可以包括接收器和发射器，比如，该接收器和发射器可以实现为同一个无线通信组件，该无线通信组件可以包括一块无线通信芯片以及射频天线。
存储器1203可以与处理器1201以及收发器1202相连。
存储器1203可用于存储处理器执行的计算机程序，处理器1201用于执行该计算机程序，以实现上述方法实施例中的第一终端设备执行的各个步骤。
在一示例性实施例中，处理器1201，用于在对候选资源集合执行第一排除操作之后，若所述候选资源集合中的资源数目小于或等于第一数值，则将所述候选资源集合设置为所述第一排除操作之前的候选资源集合；其中，所述第一排除操作包括第一终端设备根据接收到的资源集合进行资源排除。
在一示例性实施例中，处理器1201，用于在对候选资源集合执行第一排除操作之后，若所述候选资源集合中的资源数目小于或等于第一数值，则将所述第一排除操作中排除的资源放入所述候选资源集合；其中，所述第一排除操作包括第一终端设备根据接收到的资源集合进行资源排除。
在一示例性实施例中，处理器1201，用于在执行所述第一排除操作的过程中，若所述候选资源集合中的资源数目小于或等于第三数值，则停止所述第一排除操作；其中，所述第三数值等于或不等于所述第一数值。
在一示例性实施例中，处理器1201，用于在对候选资源集合执行第二排除操作之后，若满足第一条件，则对所述第二排除操作之后的候选资源集合执行第一排除操作；其中，所述第一排除操作包括第一终端设备根据接收到的资源集合进行资源排除，所述第二排除操作包括所述第一终端设备根据未侦听时隙进行资 源排除和/或根据资源侦听结果进行资源排除；所述第一条件包括以下至少一项：所述第二排除操作之后的候选资源集合中的资源数目满足第一子条件，所述接收到的资源集合中的资源数目满足第二子条件。
对于本实施例中未详细说明的细节，可参见上文实施例，此处不再一一赘述。
此外，存储器可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，易失性或非易失性存储设备包括但不限于：磁盘或光盘，电可擦除可编程只读存储器，可擦除可编程只读存储器，静态随时存取存储器，只读存储器，磁存储器，快闪存储器，可编程只读存储器。
本申请实施例还提供了一种计算机可读存储介质，所述存储介质中存储有计算机程序，所述计算机程序用于被处理器执行，以实现上述资源排除方法。可选地，该计算机可读存储介质可以包括：ROM(Read-Only Memory，只读存储器)、RAM(Random-Access Memory，随机存储器)、SSD(Solid State Drives，固态硬盘)或光盘等。其中，随机存取记忆体可以包括ReRAM(Resistance Random Access Memory，电阻式随机存取记忆体)和DRAM(Dynamic Random Access Memory，动态随机存取存储器)。
本申请实施例还提供了一种芯片，所述芯片包括可编程逻辑电路和/或程序指令，当所述芯片运行时，用于实现上述资源排除方法。
本申请实施例还提供了一种计算机程序产品或计算机程序，所述计算机程序产品或计算机程序包括计算机指令，所述计算机指令存储在计算机可读存储介质中，处理器从所述计算机可读存储介质读取并执行所述计算机指令，以实现上述资源排除方法。
应理解，在本申请的实施例中提到的“指示”可以是直接指示，也可以是间接指示，还可以是表示具有关联关系。举例说明，A指示B，可以表示A直接指示B，例如B可以通过A获取；也可以表示A间接指示B，例如A指示C，B可以通过C获取；还可以表示A和B之间具有关联关系。
在本申请实施例的描述中，术语“对应”可表示两者之间具有直接对应或间接对应的关系，也可以表示两者之间具有关联关系，也可以是指示与被指示、配置与被配置等关系。
在本申请一些实施例中，“预定义的”可以通过在设备(例如，包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现，本申请对于其具体的实现方式不作限定。比如预定义的可以是指协议中定义的。
在本申请一些实施例中，所述“协议”可以指通信领域的标准协议，例如可以包括LTE协议、NR协议以及应用于未来的通信系统中的相关协议，本申请对此不作限定。
在本文中提及的“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
另外，本文中描述的步骤编号，仅示例性示出了步骤间的一种可能的执行先后顺序，在一些其它实施例中，上述步骤也可以不按照编号顺序来执行，如两个不同编号的步骤同时执行，或者两个不同编号的步骤按照与图示相反的顺序执行，本申请实施例对此不作限定。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请实施例所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述仅为本申请的示例性实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (78)

  1. 一种资源排除方法，其特征在于，所述方法由第一终端设备执行，所述方法包括：
    在对候选资源集合执行第一排除操作之后，若所述候选资源集合中的资源数目小于或等于第一数值，则将所述候选资源集合设置为所述第一排除操作之前的候选资源集合，或将所述第一排除操作中排除的资源放入所述候选资源集合；其中，所述第一排除操作包括所述第一终端设备根据接收到的资源集合进行资源排除。
  2. 根据权利要求1所述的方法，其特征在于，所述将所述第一排除操作中排除的资源放入所述候选资源集合，包括：
    从所述第一排除操作中排除的资源中，按照第一方式确定资源放入所述候选资源集合。
  3. 根据权利要求2所述的方法，其特征在于，所述第一方式为随机选择方式。
  4. 根据权利要求2所述的方法，其特征在于，所述第一方式为按序选择方式。
  5. 根据权利要求4所述的方法，其特征在于，所述按序选择方式为：先按时域选择后按频域选择的方式，或者，先按频域选择后按时域选择的方式。
  6. 根据权利要求2至5任一项所述的方法，其特征在于，所述按照第一方式确定资源放入所述候选资源集合的停止条件为以下任意一种：
    所述第一排除操作中排除的资源全部被放入所述候选资源集合；
    所述候选资源集合中的资源数目大于或等于所述第一数值；
    所述候选资源集合中的资源数目大于或等于第二数值，所述第二数值不等于所述第一数值。
  7. 根据权利要求6所述的方法，其特征在于，
    所述第二数值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值；
    或者，
    所述第二数值和所述第一数值之间的偏移量由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
  8. 根据权利要求1至7任一项所述的方法，其特征在于，所述方法还包括：
    在执行所述第一排除操作的过程中，若所述候选资源集合中的资源数目小于或等于第三数值，则停止所述第一排除操作；其中，所述第三数值等于或不等于所述第一数值。
  9. 根据权利要求1至8任一项所述的方法，其特征在于，所述方法还包括：
    在执行所述第一排除操作的过程中，若所述候选资源集合中的第一资源或所述第一资源对应的周期性资源，与所述接收到的资源集合中的第二资源重叠，则将所述第一资源从所述候选资源集合中排除；
    其中，所述第二资源是所述接收到的资源集合中的任意一个时频资源，或所述接收到的资源集合中的任意一个时隙，或所述接收到的资源集合中的任意一个子信道。
  10. 根据权利要求9所述的方法，其特征在于，
    所述第一资源为资源R(x,y)，x和y分别用于指示所述第一资源的频域位置和时域位置；
    所述第一资源对应的周期性资源为R(x,y+j*Ptxlg)，j是属于[0,Cresel-1]的整数，其中Cresel与所述第一终端设备生成的随机计数值相关，Ptxlg为Ptx转化为逻辑时隙后的数目，Ptx为所述第一终端设备的资源预留周期。
  11. 根据权利要求1至10任一项所述的方法，其特征在于，所述接收到的资源集合是第二终端设备提供或发送的。
  12. 根据权利要求11所述的方法，其特征在于，所述第二终端设备为除所述第一终端设备外的任意一个终端设备，或所述第一终端设备对应的接收端，或与所述第一终端设备进行终端设备间协作的另一设备。
  13. 根据权利要求1至12任一项所述的方法，其特征在于，所述方法还包括：
    在执行所述第一排除操作之前，对所述候选资源集合执行第二排除操作，所述第二排除操作包括所述第一终端设备根据未侦听时隙进行资源排除和/或根据资源侦听结果进行资源排除；
    在执行所述第二排除操作之后，若满足第一条件，则对所述第二排除操作之后的候选资源集合执行所述第一排除操作；其中，所述第一条件包括以下至少一项：所述第二排除操作之后的候选资源集合中的资源数目满足第一子条件，所述接收到的资源集合中的资源数目满足第二子条件。
  14. 一种资源排除方法，其特征在于，所述方法由第一终端设备执行，所述方法包括：
    在对候选资源集合执行第二排除操作之后，若满足第一条件，则对所述第二排除操作之后的候选资源集合执行第一排除操作；其中，所述第一排除操作包括所述第一终端设备根据接收到的资源集合进行资源排除，所述第二排除操作包括所述第一终端设备根据未侦听时隙进行资源排除和/或根据资源侦听结果进行 资源排除；所述第一条件包括以下至少一项：所述第二排除操作之后的候选资源集合中的资源数目满足第一子条件，所述接收到的资源集合中的资源数目满足第二子条件。
  15. 根据权利要求14所述的方法，其特征在于，所述第一子条件为：所述第二排除操作之后的候选资源集合中的资源数目与第一数值之间的差值大于或等于第一阈值。
  16. 根据权利要求15所述的方法，其特征在于，所述第一阈值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
  17. 根据权利要求15所述的方法，其特征在于，所述第一阈值为所述接收到的资源集合中的资源数目，或者，所述接收到的资源集合中的资源数目与第五数值之和，所述第五数值为大于或等于0的整数。
  18. 根据权利要求14所述的方法，其特征在于，所述第一子条件为：所述第二排除操作之后的候选资源集合中的资源数目和第四数值的乘积，与第一数值和所述第四数值的乘积之间的差值大于或等于第二阈值。
  19. 根据权利要求18所述的方法，其特征在于，所述第二阈值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
  20. 根据权利要求18所述的方法，其特征在于，所述第二阈值为所述接收到的资源集合中的子信道数目，或者，所述接收到的资源集合中的子信道数目与第六数值之和，所述第六数值为大于或等于0的整数。
  21. 根据权利要求14所述的方法，其特征在于，所述第一子条件为：所述第二排除操作之后的候选资源集合中的资源数目大于或等于第三阈值。
  22. 根据权利要求21所述的方法，其特征在于，所述第三阈值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
  23. 根据权利要求21所述的方法，其特征在于，所述第三阈值为所述候选资源集合中的初始资源数目和第七数值的乘积，所述第七数值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
  24. 根据权利要求14所述的方法，其特征在于，所述第一子条件为：所述第二排除操作之后的候选资源集合中的资源数目和第四数值的乘积大于或等于第四阈值。
  25. 根据权利要求23所述的方法，其特征在于，所述第四阈值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
  26. 根据权利要求23所述的方法，其特征在于，所述第四阈值为所述候选资源集合中的初始资源数目、第七数值和所述第四数值的乘积，所述第七数值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
  27. 根据权利要求14所述的方法，其特征在于，所述第二子条件为：所述接收到的资源集合中的资源数目小于或等于第五阈值。
  28. 根据权利要求27所述的方法，其特征在于，所述第五阈值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
  29. 根据权利要求27所述的方法，其特征在于，所述第五阈值为所述第二排除操作之后的候选资源集合中的资源数目与第一数值的差值。
  30. 根据权利要求14所述的方法，其特征在于，所述第二子条件为：所述接收到的资源集合中的子信道数目小于或等于第六阈值。
  31. 根据权利要求30所述的方法，其特征在于，所述第六阈值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
  32. 根据权利要求30所述的方法，其特征在于，所述第六阈值为所述第二排除操作之后的候选资源集合中的资源数目和第四数值的乘积，与第一数值与所述第四数值的乘积之间的差值。
  33. 根据权利要求18-20、24-26和32中的任一项所述的方法，其特征在于，所述第四数值为一个候选资源对应的子信道数目。
  34. 根据权利要求14至33任一项所述的方法，其特征在于，所述对所述第二排除操作之后的候选资源集合执行第一排除操作，包括：
    若所述第二排除操作之后的候选资源集合中的第一资源或所述第一资源对应的周期性资源，与所述接收到的资源集合中的第二资源重叠，则将所述第一资源从所述候选资源集合中排除；
    其中，所述第二资源是所述接收到的资源集合中的任意一个时频资源，或所述接收到的资源集合中的任意一个时隙，或所述接收到的资源集合中的任意一个子信道。
  35. 根据权利要求34所述的方法，其特征在于，
    所述第一资源为资源R(x,y)，x和y分别用于指示所述第一资源的频域位置和时域位置；
    所述第一资源对应的周期性资源为R(x,y+j*Ptxlg)，j是属于[0,Cresel-1]的整数，其中Cresel与所述第 一终端设备生成的随机计数值相关，Ptxlg为Ptx转化为逻辑时隙后的数目，Ptx为所述第一终端设备的资源预留周期。
  36. 根据权利要求14至35任一项所述的方法，其特征在于，所述接收到的资源集合是第二终端设备提供或发送的。
  37. 根据权利要求36所述的方法，其特征在于，所述第二终端设备为除所述第一终端设备外的任意一个终端设备，或所述第一终端设备对应的接收端，或与所述第一终端设备进行终端设备间协作的另一设备。
  38. 一种资源排除装置，其特征在于，所述装置包括：
    处理模块，用于在对候选资源集合执行第一排除操作之后，若所述候选资源集合中的资源数目小于或等于第一数值，则将所述候选资源集合设置为所述第一排除操作之前的候选资源集合，或将所述第一排除操作中排除的资源放入所述候选资源集合；其中，所述第一排除操作包括第一终端设备根据接收到的资源集合进行资源排除。
  39. 根据权利要求38所述的装置，其特征在于，所述处理模块，用于从所述第一排除操作中排除的资源中，按照第一方式确定资源放入所述候选资源集合。
  40. 根据权利要求39所述的装置，其特征在于，所述第一方式为随机选择方式。
  41. 根据权利要求39所述的装置，其特征在于，所述第一方式为按序选择方式。
  42. 根据权利要求41所述的装置，其特征在于，所述按序选择方式为：先按时域选择后按频域选择的方式，或者，先按频域选择后按时域选择的方式。
  43. 根据权利要求39至42任一项所述的装置，其特征在于，所述按照第一方式确定资源放入所述候选资源集合的停止条件为以下任意一种：
    所述第一排除操作中排除的资源全部被放入所述候选资源集合；
    所述候选资源集合中的资源数目大于或等于所述第一数值；
    所述候选资源集合中的资源数目大于或等于第二数值，所述第二数值不等于所述第一数值。
  44. 根据权利要求43所述的装置，其特征在于，
    所述第二数值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值；
    或者，
    所述第二数值和所述第一数值之间的偏移量由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
  45. 根据权利要求38至44任一项所述的装置，其特征在于，
    所述处理模块，还用于在执行所述第一排除操作的过程中，若所述候选资源集合中的资源数目小于或等于第三数值，则停止所述第一排除操作；其中，所述第三数值等于或不等于所述第一数值。
  46. 根据权利要求38至45任一项所述的装置，其特征在于，
    所述处理模块，还用于在执行所述第一排除操作的过程中，若所述候选资源集合中的第一资源或所述第一资源对应的周期性资源，与所述接收到的资源集合中的第二资源重叠，则将所述第一资源从所述候选资源集合中排除；
    其中，所述第二资源是所述接收到的资源集合中的任意一个时频资源，或所述接收到的资源集合中的任意一个时隙，或所述接收到的资源集合中的任意一个子信道。
  47. 根据权利要求46所述的装置，其特征在于，
    所述第一资源为资源R(x,y)，x和y分别用于指示所述第一资源的频域位置和时域位置；
    所述第一资源对应的周期性资源为R(x,y+j*Ptxlg)，j是属于[0,Cresel-1]的整数，其中Cresel与所述第一终端设备生成的随机计数值相关，Ptxlg为Ptx转化为逻辑时隙后的数目，Ptx为所述第一终端设备的资源预留周期。
  48. 根据权利要求38至47任一项所述的装置，其特征在于，所述接收到的资源集合是第二终端设备提供或发送的。
  49. 根据权利要求48所述的装置，其特征在于，所述第二终端设备为除所述第一终端设备外的任意一个终端设备，或所述第一终端设备对应的接收端，或与所述第一终端设备进行终端设备间协作的另一设备。
  50. 根据权利要求38至49任一项所述的装置，其特征在于，所述处理模块还用于：
    在执行所述第一排除操作之前，对所述候选资源集合执行第二排除操作，所述第二排除操作包括所述第一终端设备根据未侦听时隙进行资源排除和/或根据资源侦听结果进行资源排除；
    在执行所述第二排除操作之后，若满足第一条件，则对所述第二排除操作之后的候选资源集合执行所述第一排除操作；其中，所述第一条件包括以下至少一项：所述第二排除操作之后的候选资源集合中的资源数目满足第一子条件，所述接收到的资源集合中的资源数目满足第二子条件。
  51. 一种资源排除装置，其特征在于，所述装置包括：
    处理模块，用于在对候选资源集合执行第二排除操作之后，若满足第一条件，则对所述第二排除操作之后的候选资源集合执行第一排除操作；其中，所述第一排除操作包括第一终端设备根据接收到的资源集合进行资源排除，所述第二排除操作包括所述第一终端设备根据未侦听时隙进行资源排除和/或根据资源侦听结果进行资源排除；所述第一条件包括以下至少一项：所述第二排除操作之后的候选资源集合中的资源数目满足第一子条件，所述接收到的资源集合中的资源数目满足第二子条件。
  52. 根据权利要求51所述的装置，其特征在于，所述第一子条件为：所述第二排除操作之后的候选资源集合中的资源数目与第一数值之间的差值大于或等于第一阈值。
  53. 根据权利要求52所述的装置，其特征在于，所述第一阈值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
  54. 根据权利要求52所述的装置，其特征在于，所述第一阈值为所述接收到的资源集合中的资源数目，或者，所述接收到的资源集合中的资源数目与第五数值之和，所述第五数值为大于或等于0的整数。
  55. 根据权利要求51所述的装置，其特征在于，所述第一子条件为：所述第二排除操作之后的候选资源集合中的资源数目和第四数值的乘积，与第一数值和所述第四数值的乘积之间的差值大于或等于第二阈值。
  56. 根据权利要求55所述的装置，其特征在于，所述第二阈值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
  57. 根据权利要求55所述的装置，其特征在于，所述第二阈值为所述接收到的资源集合中的子信道数目，或者，所述接收到的资源集合中的子信道数目与第六数值之和，所述第六数值为大于或等于0的整数。
  58. 根据权利要求51所述的装置，其特征在于，所述第一子条件为：所述第二排除操作之后的候选资源集合中的资源数目大于或等于第三阈值。
  59. 根据权利要求58所述的装置，其特征在于，所述第三阈值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
  60. 根据权利要求58所述的装置，其特征在于，所述第三阈值为所述候选资源集合中的初始资源数目和第七数值的乘积，所述第七数值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
  61. 根据权利要求51所述的装置，其特征在于，所述第一子条件为：所述第二排除操作之后的候选资源集合中的资源数目和第四数值的乘积大于或等于第四阈值。
  62. 根据权利要求61所述的装置，其特征在于，所述第四阈值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
  63. 根据权利要求61所述的装置，其特征在于，所述第四阈值为所述候选资源集合中的初始资源数目、第七数值和所述第四数值的乘积，所述第七数值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
  64. 根据权利要求51所述的装置，其特征在于，所述第二子条件为：所述接收到的资源集合中的资源数目小于或等于第五阈值。
  65. 根据权利要求64所述的装置，其特征在于，所述第五阈值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
  66. 根据权利要求64所述的装置，其特征在于，所述第五阈值为所述第二排除操作之后的候选资源集合中的资源数目与第一数值的差值。
  67. 根据权利要求51所述的装置，其特征在于，所述第二子条件为：所述接收到的资源集合中的子信道数目小于或等于第六阈值。
  68. 根据权利要求67所述的装置，其特征在于，所述第六阈值由网络配置，或预配置，或取决于所述第一终端设备的实现，或标准规定的预设值。
  69. 根据权利要求67所述的装置，其特征在于，所述第六阈值为所述第二排除操作之后的候选资源集合中的资源数目和第四数值的乘积，与第一数值与所述第四数值的乘积之间的差值。
  70. 根据权利要求55-57、61-63和69中的任一项所述的装置，其特征在于，所述第四数值为一个候选资源对应的子信道数目。
  71. 根据权利要求51至70任一项所述的装置，其特征在于，所述处理模块用于：
    若所述第二排除操作之后的候选资源集合中的第一资源或所述第一资源对应的周期性资源，与所述接收到的资源集合中的第二资源重叠，则将所述第一资源从所述候选资源集合中排除；
    其中，所述第二资源是所述接收到的资源集合中的任意一个时频资源，或所述接收到的资源集合中的 任意一个时隙，或所述接收到的资源集合中的任意一个子信道。
  72. 根据权利要求71所述的装置，其特征在于，
    所述第一资源为资源R(x,y)，x和y分别用于指示所述第一资源的频域位置和时域位置；
    所述第一资源对应的周期性资源为R(x,y+j*Ptxlg)，j是属于[0,Cresel-1]的整数，其中Cresel与所述第一终端设备生成的随机计数值相关，Ptxlg为Ptx转化为逻辑时隙后的数目，Ptx为所述第一终端设备的资源预留周期。
  73. 根据权利要求51至72任一项所述的装置，其特征在于，所述接收到的资源集合是第二终端设备提供或发送的。
  74. 根据权利要求73所述的装置，其特征在于，所述第二终端设备为除所述第一终端设备外的任意一个终端设备，或所述第一终端设备对应的接收端，或与所述第一终端设备进行终端设备间协作的另一设备。
  75. 一种终端设备，其特征在于，所述终端设备包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述计算机程序以实现如权利要求1至37任一项所述的方法。
  76. 一种计算机可读存储介质，其特征在于，所述存储介质中存储有计算机程序，所述计算机程序用于被处理器执行，以实现如权利要求1至37任一项所述的方法。
  77. 一种芯片，其特征在于，所述芯片包括可编程逻辑电路和/或程序指令，当所述芯片运行时，用于实现如权利要求1至37任一项所述的方法。
  78. 一种计算机程序产品或计算机程序，其特征在于，所述计算机程序产品或计算机程序包括计算机指令，所述计算机指令存储在计算机可读存储介质中，处理器从所述计算机可读存储介质读取并执行所述计算机指令，以实现如权利要求1至37任一项所述的方法。
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