WO2023077368A1 - 确定资源集合的方法、装置、终端及存储介质 - Google Patents

确定资源集合的方法、装置、终端及存储介质 Download PDF

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Publication number
WO2023077368A1
WO2023077368A1 PCT/CN2021/128748 CN2021128748W WO2023077368A1 WO 2023077368 A1 WO2023077368 A1 WO 2023077368A1 CN 2021128748 W CN2021128748 W CN 2021128748W WO 2023077368 A1 WO2023077368 A1 WO 2023077368A1
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Prior art keywords
terminal
resource
time unit
time
resource set
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PCT/CN2021/128748
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English (en)
French (fr)
Inventor
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/CN2021/128748 priority Critical patent/WO2023077368A1/zh
Priority to CN202180100496.8A priority patent/CN117642999A/zh
Publication of WO2023077368A1 publication Critical patent/WO2023077368A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular to a method, device, terminal, and storage medium for determining a resource set.
  • 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 method, device, terminal, and storage medium for determining a resource set. Described technical scheme is as follows:
  • a method for determining a resource set is provided, the method is performed by a second terminal, and the method includes:
  • an apparatus for determining a resource set includes:
  • a determining module configured to determine a resource set suitable for transmission by the first terminal according to a first time unit, where the first time unit is determined based on a request signal sent by the first terminal or a time unit for sending the resource set;
  • a sending module configured to send the resource set to the first terminal.
  • a terminal device includes a processor and a transceiver;
  • the processor is configured to determine a resource set suitable for transmission by the first terminal according to a first time unit, where the first time unit is determined based on a request signal sent by the first terminal or a time unit for sending the resource set ;
  • the transceiver is configured to send the resource set to the first terminal.
  • a computer-readable storage medium is provided, and 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 above-mentioned method for determining a resource set.
  • a chip includes a programmable logic circuit and/or program instructions, and is used to implement the above method for determining a resource set 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-mentioned method for determining a resource set.
  • the second terminal determines and provides the first terminal with a set of resources suitable for the first terminal's transmission, so that the first terminal can select resources suitable for its own transmission or exclude resources based on the resource set. Resources that are not suitable for their own transmission can effectively improve communication reliability.
  • 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 flowchart of a method for determining a resource set provided by an embodiment of the present application.
  • FIG. 7 is a flowchart of a method for determining a resource set provided by another embodiment of the present application.
  • FIG. 8 is a schematic diagram of determining a resource set provided by an embodiment of the present application.
  • FIG. 9 is a block diagram of an apparatus for determining a resource set provided by an embodiment of the present application.
  • Fig. 10 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 equipment, and the transmission resources for semi-static transmission can also be allocated to the terminal equipment.
  • 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 15 kHz, the terminal device determines T 2min from the set ⁇ 1, 5, 10, 20 ⁇ according to the priority of the 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. For example, for a data packet arriving at time slot n, the delay requirement is 50 milliseconds. Suppose 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 result.
  • 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.
  • the terminal device will determine the resource and resource R indicated by the "Time resource assignment" and "Frequency resource assignment" fields of the first sidelink control information received in time slot m and the assumed Q pieces of first sidelink control information received.
  • 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, and 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).
  • 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" fields of the first sideline control information received in time slot m+P rx .
  • 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, and 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 terminal device sends the first sideline control information to indicate time-frequency resources, and reserves resources to be used next. While listening, the terminal device performing resource selection will decode the first sideline control information sent by other terminal devices, learn the resources reserved by other terminal devices, and exclude corresponding resources during resource selection, thereby avoiding resource collisions. When the terminal device performing resource selection performs resource exclusion, it will convert the physical time (for example, 100 milliseconds) indicated by the "resourcereservation period" field in the decoded first side line control information into the corresponding number of logical time slots , and then use the number of logical time slots for resource exclusion:
  • Prsvp is the resource reservation period indicated by "resourcereservationperiod" in the first sideline control information intercepted by the terminal device
  • P'rsvp is the calculated corresponding number of logical time slots.
  • T'max is the number of time slots belonging to the resource pool used by the terminal device or the sending resource pool within one SFN (System Frame Number, system frame number) cycle or 10240 milliseconds.
  • the resource exclusion is performed according to the resource reservation period allowed in the resource pool, and the above formula is also used to convert the resource reservation period into a logical time slot.
  • Prsvp is the resource reservation period allowed in the resource pool
  • P'rsvp is the calculated corresponding number of logical time slots.
  • 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 1 After receiving the auxiliary information, UE 1 uses the auxiliary information to perform resource selection or resource exclusion. For example, if the resource in the resource set contained in the auxiliary information is a resource suitable for UE1's transmission, then UE1 selects the transmission resource from the intersection of the candidate resource set determined by itself and the resource set.
  • Step 1 For the scenario of resource selection/exclusion in cooperation between UEs, UE 1 is supported to send a request signal to UE 2. After receiving the request signal, UE 2 sends a resource set suitable for UE 1 transmission to UE 1 to assist UE. 1 to select resources.
  • Step 1 the above-mentioned step in which the terminal device determines the candidate resource set is reused as much as possible. Therefore, when UE 2 reuses the above Step 1, how to determine the time slot n1 has not yet been discussed in the standard.
  • This application conducts classification discussions based on the determination of n1, and provides a scheme for UE 2 to determine resource sets according to different n1s.
  • FIG. 6 shows a flow chart of a method for determining a resource set provided by an embodiment of the present application.
  • the method may include at least one of the following steps (610-620):
  • Step 610 the second terminal determines a resource set according to the first time unit.
  • the technical solution provided by the present application is aimed at the scenario where UEs cooperate to select/exclude resources, and the first terminal and the second terminal are two terminal devices performing cooperation.
  • the second terminal provides a resource set to the first terminal, and the resource set is used to assist the first terminal in resource selection/exclusion.
  • the resource set may be a resource set suitable for transmission by the first terminal, that is, resources in the resource set are resources suitable for transmission by the first terminal; or, the resource set may also be unsuitable for transmission by the first terminal
  • the resource set, that is, the resources in the resource set are not suitable for transmission by the first terminal.
  • the second terminal Before providing the resource set to the first terminal, the second terminal first needs to determine the resource set.
  • the second terminal determines the resource set according to the first time unit, where the first time unit is a reference time unit for determining the resource set.
  • the first time unit is in the resource pool, for example, the first time unit is in the resource pool used by the first terminal.
  • Step 620 the second terminal sends the resource set to the first terminal.
  • the second terminal may send the determined resource set to the first terminal.
  • the second terminal may directly send the resource set to the first terminal through a direct link established with the first terminal.
  • the second terminal may transfer the resource set to the first terminal through other devices, for example, the other device may be another terminal device (such as a third terminal) other than the first terminal and the second terminal, or the Other devices may be access network devices or other transit devices, which is not limited in this application.
  • the first terminal sends a request signal to the second terminal, and after receiving the request signal, the second terminal sends the resource set to the first terminal to assist the first terminal in resource selection/exclusion.
  • the request signal is used to request the second terminal to provide the resource set for the first terminal.
  • the second terminal may also determine and send the resource set to the first terminal when a specific condition is met.
  • the above specific conditions for example, detect that the resource sent by the first terminal conflicts with other terminal devices, or periodically determine and send a resource set to the first terminal.
  • whether the second terminal provides the first terminal with a resource set suitable for the first terminal's transmission, or provides the first terminal with a resource set not suitable for the first terminal's transmission can be indicated by the first terminal, configured by the network, or pre-configured , or determined by the second terminal itself, which is not limited in this application.
  • the second terminal determines and provides a resource set to the first terminal, and the resource set can provide assistance for the resource selection/exclusion of the first terminal, Therefore, it helps to improve the accuracy of the first terminal in resource selection/exclusion, thereby improving communication reliability.
  • FIG. 7 shows a flow chart of a method for determining a resource set provided by another embodiment of the present application.
  • the method may include at least one of the following steps (710-720):
  • Step 710 the second terminal determines a resource set suitable for transmission by the first terminal according to the first time unit.
  • Step 720 the second terminal sends the resource set to the first terminal.
  • the second terminal provides the first terminal with a resource set suitable for the transmission of the first terminal for the scenario of cooperative resource selection/exclusion between UEs, that is, the resources in the resource set are suitable for the transmission of the first terminal.
  • the first terminal sends a request signal to the second terminal, and after receiving the request signal, the second terminal sends the determined resource set suitable for transmission by the first terminal to the first terminal.
  • the request signal is used to request the second terminal to provide the first terminal with a set of resources suitable for transmission by the first terminal.
  • the second terminal may also determine and send the resource set suitable for transmission by the first terminal to the first terminal when a specific condition is met.
  • the above specific conditions for example, detect that the resource sent by the first terminal conflicts with other terminal devices, or periodically determine and send a resource set to the first terminal.
  • the second terminal determines and provides the first terminal with a set of resources suitable for transmission by the first terminal, so that the first terminal can select Resources that are suitable for your own transmission or exclude resources that are not suitable for your own transmission, effectively improving communication reliability.
  • the first time unit is determined based on the request signal sent by the first terminal or the time unit for sending the resource set.
  • the request signal is sent by the first terminal to the second terminal, and is used to request the second terminal to provide the resource set for the first terminal.
  • the resource set is the resource set sent by the second terminal to the first terminal as described above, and is used to provide auxiliary information for the first terminal to select/exclude resources.
  • the first time unit is the second time unit, or, the first time unit is the first time unit belonging to the resource pool after the second time unit.
  • the second time unit includes at least any of the following:
  • the first offset is configured by the network, or is pre-configured, or is a preset value specified by a standard, or is indicated by the first terminal, or is determined by the second terminal itself.
  • the second offset is configured by the network, or is pre-configured, or is a preset value stipulated by a standard, or is indicated by the first terminal, or is determined by the second terminal itself.
  • the first time unit is the second time unit, or, the first time unit is the first time unit belonging to the resource pool after the second time unit.
  • the second time unit is a time unit when the second terminal satisfies a specific condition.
  • the above specific conditions for example, detect that the resource sent by the first terminal conflicts with other terminal devices, or periodically determine and send the resource set to the first terminal.
  • the resources sent by the first terminal are resources for transmission by the first terminal.
  • the first time unit is the second time unit; or, if the second time unit is not in the resource pool, the first time unit is the first time unit after the second time unit A time unit belonging to the resource pool.
  • the resource pool is indicated by the first terminal, configured by the network, or pre-configured.
  • the resource pool is the receiving resource pool of the second terminal, or is the sending resource pool of the first terminal, or is the resource pool determined according to the resource pool identifier indicated by the first terminal, or is the resource pool receiving the request signal pool.
  • the saying that the first time unit is after the second time unit means that the first time unit is after the second time unit in the time domain.
  • each time slot is arranged in increasing order in the time domain, for example, time slot 1, time slot 2, time slot 3..., then time slot 3 is after time slot 1, and time slot 3 Also after time slot 2.
  • the second terminal determines a resource set suitable for transmission by the first terminal according to the first time unit, including the following sub-steps 1)-2):
  • the second terminal determines the target time unit according to the first time unit.
  • the target time unit includes: Q 1 time units determined according to the first time unit and time units not monitored by the second terminal, and/or, according to the first time unit and the first time unit detected by the second terminal
  • the time unit of the lateral control information determines Q2 time units, where Q1 is a positive integer and Q2 is a positive integer.
  • the time unit that the second terminal does not listen to refers to the time unit that the second terminal does not listen to in the resource listening window.
  • the time unit in which the second terminal hears the first lateral control information refers to the time unit in which the second terminal hears the first lateral control information in the resource listening window.
  • first sideline control information refers to information sent by the terminal device for resource indication or reservation.
  • first side row control information refers to the above, and details are not repeated here.
  • the above Q 1 time units are time units m 1 +q 1 *Prxlg 1 , q 1 is a positive integer whose value is in [1,Q 1 ]; where m 1 is the second terminal not listening
  • the time unit of Prxlg 1 is the number of Prx 1 converted into logical time slots, and Prx 1 is the reservation period of each or any type of resource allowed in the resource pool.
  • the resource pool may be indicated by the first terminal, configured by the network, or pre-configured.
  • Ts 1 is determined according to an instruction of the first terminal. For example, Ts1 is determined according to the resource selection window indicated by the first terminal, or Ts1 is determined according to the remaining delay budget indicated by the first terminal. Exemplarily, Ts 1 is determined according to the end time of the resource selection window indicated by the first terminal.
  • the time unit m 1 or m 1 +q 1 *Prxlg 1 is a time unit in the resource pool.
  • the set of time units of a resource pool is ⁇ t'0,t'1,...,t'(Tmax-1) ⁇ , and Tmax is the number of time units belonging to the resource pool within one SFN cycle or 10240ms, then the time unit m 1 Or m 1 +q 1 *Prxlg 1 is t'm 1 or t'(m 1 +q 1 *Prxlg 1 ).
  • the above Q 2 time units are time units m 2 +q 2 *Prxlg 2 , q 2 is a positive integer whose value is in [1,Q 2 ]; wherein, m 2 is the time unit detected by the second terminal The time unit of the first lateral control information, Prxlg 2 is the number of Prx 2 converted into logical time slots, and Prx 2 is the resource reservation period in the first lateral control information detected by the second terminal.
  • Prx 2 is less than Ts 2 and time unit m 2 +Prxlg 2 is the first time unit or after the first time unit, then Q 2 is Otherwise, Q 2 is 1; wherein, Ts 2 is a value greater than or equal to 0.
  • Ts 2 is determined according to an instruction of the first terminal. For example, Ts 2 is determined according to the resource selection window indicated by the first terminal, or Ts 2 is determined according to the remaining delay budget indicated by the first terminal. Exemplarily, Ts 2 is determined according to the end time of the resource selection window indicated by the first terminal.
  • the time unit m 2 or m 2 +q 2 *Prxlg 2 is a time unit in the resource pool.
  • the set of time units of a resource pool is ⁇ t'0,t'1,...,t'(Tmax-1) ⁇
  • Tmax is the number of time units belonging to the resource pool within one SFN cycle or 10240ms
  • the time unit m 2 Or m 2 +q 2 *Prxlg 2 is t'm 2 or t'(m 2 +q 2 *Prxlg 2 ).
  • the second terminal excludes the resources in the resource selection window according to the target time unit, and determines the remaining resources in the resource selection window as a resource set.
  • the resource exclusion may include the following two situations, and the two situations may be used alternatively or in combination, which is not limited in this application.
  • Case 1 If the first resource in the resource selection window or the periodic resource corresponding to the first resource overlaps with Q 1 time unit, the second terminal excludes the first resource;
  • Case 2 Assuming that the first side line control information with the same content is received within Q 2 time units, if the second resource in the resource selection window or the periodic resource corresponding to the second resource is different from the received or assumed received If the resources indicated by the received first side line control information overlap, the second terminal excludes the second resource.
  • the periodic resource corresponding to the first resource may be a series of periodic resources corresponding to the first resource, and the series of periodic resources corresponding to the first resource include the first resource.
  • the periodic resource corresponding to the second resource may be a series of periodic resources corresponding to the second resource, and the series of periodic resources corresponding to the second resource include the second resource.
  • the second terminal determines the remaining resources in the resource selection window as a resource set, which is the resource set provided by the second terminal to the first terminal as described above.
  • the second terminal performs or does not perform the step of resource exclusion according to Q 1 time units according to the instruction of the first terminal or network configuration or pre-configuration.
  • the second terminal excludes the first sidelink control information and/or unobserved time slots, and indicates the unexcluded resources
  • assisting the first terminal in resource selection/exclusion can effectively improve communication reliability.
  • time slot p is any of the following:
  • Time slots p+T 1 to p+T 2 are resource selection windows 10, and T 1 is determined according to the instruction of the first terminal or is consistent with the determination method of T 1 introduced above or depends on the implementation of the second terminal.
  • the first terminal directly indicates the value of T1 in the request signal.
  • T 2 is determined according to the indication of the first terminal or depends on the implementation of the second terminal.
  • the first terminal directly indicates the value of T2 in the request signal.
  • the first terminal indicates the remaining delay budget in the request signal, and the second terminal determines T 2 according to the remaining delay budget.
  • Time slots pT 0 to pT proc,0 are resource listening windows 20 .
  • the second terminal performs resource monitoring in the resource monitoring window 20, and the value of T 0 is 100 or 1100 milliseconds.
  • T proc,0 is 1, 1, 2, 4 time slots.
  • the second terminal performs resource sensing in a time slot belonging to the resource pool indicated by the first terminal or the receiving resource pool of the second terminal within the resource sensing window 20 .
  • the second terminal listens to the first sideline control information sent by other terminals in a time slot other than its own sending time slot, and in time slot p, the second terminal uses pT 0 to pT proc,0 resources to listen to result.
  • the second terminal takes all the available resources in the resource selection window 10 belonging to the resource pool indicated by the first terminal or the receiving resource pool of the second terminal as the resource set A, and any resource in the resource set A is denoted as R(x,y) , x and y respectively indicate the frequency domain location and time domain location of the resource. Note that the initial quantity of resources in resource set A is M total .
  • the second terminal excludes the resources in the resource set A according to the unlistened time slots (Step 1-1) in the resource listening window 20 and/or the resource listening results (Step 1-2) in the resource listening window 20 .
  • the second terminal 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 according to the unlistened time slot in Step 1-1 or the time slot in Step 1-2
  • the first time unit is the time slot p. If the time slot p is not in the resource pool indicated by the first terminal or the receiving resource pool of the second terminal, the first time unit is the first time slot belonging to the resource pool indicated by the first terminal or the receiving resource pool of the second terminal after the time slot p. time slots. In the example in Figure 8, the time slot p is not in the resource pool indicated by the first terminal or the receiving resource pool of the second terminal, and after the time slot p belongs to the resource pool indicated by the first terminal or the receiving resource pool of the second terminal.
  • the time slot is time slot r
  • the first time unit is time slot r.
  • m is the time slot that is not listening
  • Prxlg is the number after Prx is converted into a logical time slot
  • Prx is each or any resource allowed in the resource pool indicated by the first terminal or in the receiving resource pool of the second terminal Reserve period. If Prx is less than Ts and slot m+Prxlg is at or after slot r, then Q1 is Otherwise Q1 is 1.
  • Ts is the value converted from T 2 to milliseconds.
  • the aforementioned time slot m+Prxlg following the time slot r means that the time slots are arranged in increasing order in the time domain, and the time slot m+Prxlg is located behind the time slot r.
  • the second terminal does not listen in time slot m, and performs resource exclusion in turn according to the resource pool indicated by the first terminal or each resource reservation period allowed in the receiving resource pool of the second terminal , for one of the resource reservation period is recorded as Prx1, Prx1 is less than Ts and time slot m+Prx1lg is after time slot r, then Q 1 is Assuming that the value of Q 1 is calculated as 2, the corresponding Q 1 time slots are the next two time slots marked with horizontal hatching at intervals of Prx1lg mapped from time slot m in Figure 8 (a).
  • Ts is the value after T2 is converted into milliseconds
  • Prx1lg is the value after Prx1 is converted into logical time slots.
  • time slot m+Prx2lg is after time slot r but Prx2 is greater than Ts, then Q If the value of 1 is 1, then the corresponding Q 1 time slots are the next time slots identified by dotted shades mapped from the time slot m in Figure 8 (a) with Prx2lg as the interval. Prx2lg is the number of logical time slots converted from Prx2.
  • the second terminal will judge whether the Q 1 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). Resource R(x,y) is excluded from resource set A.
  • the second terminal may not execute Step 1-1 according to the instruction of the first terminal or network configuration or pre-configuration.
  • Step 1-1 if the remaining resources in resource set A are less than M total *X, then initialize resource set A to all resource pools or second terminals indicated by the first terminal within the resource selection window 10 Receive the available resources in the resource pool and then execute Step 1-2.
  • Step 1-2
  • the second terminal detects the first sidelink control information transmitted in the PSCCH in the time slot m in the resource sensing window 20, measure the SL-RSRP of the PSCCH or the SL-RSRP of the PSSCH scheduled by the PSCCH (that is, the SL-RSRP of the corresponding PSSCH sent by the PSCCH in the same slot).
  • m is the time slot where the second terminal detects the first side row control information
  • Prxlg is the number after Prx is converted into a logical time slot
  • Prx is the resource reservation in the first side row control information that the second terminal detects cycle. If Prx is less than Ts and slot m+Prxlg is at or after slot r, then Q2 is Otherwise Q2 is 1.
  • Ts is the value converted from T 2 to milliseconds.
  • the second terminal assumes that it has received the first sideline control information with the same content in the above-mentioned Q 2 time slots, and the second terminal judges that the first side line control information received in time slot m and assumed to be received in the above-mentioned Q 2 time slots Whether the resources indicated by the Timeresourceassignment and Frequencyresourceassignment fields in the sideline control information overlap with the resource R(x, y) or a series of resources corresponding to R(x, y), and if they overlap, exclude the resource R(x, y) from the resource set A y).
  • the second terminal detects the first sideline control information in time slot m, the resource reservation period in the first sideline control information is Prx, Prx is less than Ts and time slot m +Prxlg after time slot r, then Q 2 is Assuming that the value of Q 2 is calculated as 1, the second terminal will assume that the first side row control information with the same content is also received on the time slot m+Prxlg.
  • the second terminal will judge the first sideline control information received at time slot m and the resources 1 and 2 indicated by the "Timeresourceassignment" and “Frequencyresourceassignment” fields of the first sideline control information received at time slot m+Prxlg , 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, resource R is excluded from resource set A (x,y).
  • Prxlg is the number of Prx converted into logical time slots.
  • the SL-RSRP threshold is raised by 3dB, and Step 1 is executed again. For example, if after determining the initial resource set A, after a round of resource exclusion (that is, Step 1), the remaining resources in the resource set A are greater than or equal to M total *X, then only this round of resource Exclusion process; if after determining the initial resource set A, after a round of resource exclusion process, the remaining resources in the resource set A are less than M total *X, then raise the SL-RSRP threshold by 3dB, and perform another round of resource exclusion process, and so on, until the remaining resources in resource set A are greater than or equal to M total *X after a certain round of resource exclusion process. In this case, multiple rounds of resource exclusion processes will be performed.
  • Step 1 after determining the initial resource set A and going through a round of resource exclusion process (that is, Step 1), the above determination of whether the remaining resources in the resource set A after resource exclusion is greater than or equal to M total * may not be performed.
  • X steps That is to say, only one round of resource exclusion process (that is, Step 1) is performed. After this round of resource exclusion process is completed, there is no need to judge the number of remaining resources in resource set A after resource exclusion, and the second terminal directly executes the following In the above steps, the resource set A after this round of resource exclusion is indicated to the first terminal.
  • the second terminal indicates the resource set A to the first terminal.
  • the aforementioned RSRP threshold is determined by the priority P1 carried in the PSCCH sensed by the second terminal and the priority P2 indicated by the first terminal.
  • the above X is indicated by the first terminal, or depends on the implementation of the second terminal, or network configuration, or pre-configuration.
  • the Cresel is related to the random count value generated by the terminal device, or the Cresel is determined according to the instruction of the first terminal, or the Cresel is 1.
  • 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-figures (a) and (b) of FIG. 8 , when Cresel is 3, it means 3 periodic resources (including R(x, y)) corresponding to resource R(x, y).
  • the time unit m or m+q*Prxlg or y+j*Ptxlg is a time unit in the resource pool.
  • the set of time units of a resource pool is ⁇ t'0,t'1,...,t'(Tmax-1) ⁇
  • Tmax is the number of time units belonging to the resource pool within one SFN cycle or 10240ms
  • the time unit m or m+q*Prxlg is t'm or t'(m+q*Prxlg).
  • FIG. 9 shows a block diagram of an apparatus for determining a resource set 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 device may be the second terminal described above, or may be set in the second terminal.
  • the apparatus 900 may include: a determining module 910 and a sending module 920 .
  • a determining module 910 configured to determine a resource set according to the first time unit.
  • a sending module 920 configured to send the resource set to the first terminal.
  • the determining module 910 is configured to determine a resource set suitable for transmission by the first terminal according to the first time unit.
  • the first time unit is determined based on a request signal sent by the first terminal or a time unit for sending the resource set.
  • the first time unit is a second time unit, or, the first time unit is the first time unit belonging to the resource pool after the second time unit;
  • the second time unit includes any of the following;
  • a time unit for the second terminal to receive the request signal :
  • the second terminal sends the time unit of the resource set
  • the second terminal sends the time unit of the resource set plus or minus a second offset
  • the first time unit is the second time unit; or, if the second time unit is not in the resource pool, then The first time unit is the first time unit belonging to the resource pool after the second time unit.
  • the resource pool is indicated by the first terminal, configured by the network, or pre-configured.
  • the first offset is configured by the network, or is pre-configured, or is a preset value specified by a standard, or is indicated by the first terminal, or is determined by the second terminal itself.
  • the second offset is configured by the network, or is pre-configured, or is a preset value specified by a standard, or is indicated by the first terminal, or is determined by the second terminal itself.
  • the determining module 910 includes:
  • a determining unit configured to determine a target time unit according to the first time unit, where the target time unit includes: Q 1 time units determined according to the first time unit and time units not listened to by the second terminal, and /or, Q2 time units determined according to the first time unit and the time unit in which the second terminal heard the first lateral control information, Q1 is a positive integer, and Q2 is a positive integer;
  • the exclusion unit is configured to exclude resources in the resource selection window according to the target time unit, and determine remaining resources in the resource selection window as the resource set.
  • the Q 1 time units are time units m 1 +q 1 *Prxlg 1 , q 1 is a positive integer whose value is in [1,Q 1 ]; wherein, m 1 is the first Two time units that the terminal does not listen to, Prxlg 1 is the number after Prx 1 is converted into logical time slots, and Prx 1 is the reservation period of each resource allowed in the resource pool.
  • the Ts 1 is determined according to an indication of the first terminal.
  • the Ts 1 is determined according to the resource selection window indicated by the first terminal, or, the Ts 1 is determined according to the remaining delay budget indicated by the first terminal.
  • the time unit m 1 or m 1 +q 1 *Prxlg 1 is a time unit in the resource pool.
  • the Q 2 time units are time units m 2 +q 2 *Prxlg 2 , and q 2 is a positive integer whose value is in [1, Q 2 ]; wherein, m 2 is the first The time unit of the first lateral control information detected by the two terminals, Prxlg 2 is the number after converting Prx 2 into logical time slots, and Prx 2 is the first lateral control information detected by the second terminal The resource reservation period in the message.
  • the Ts 2 is determined according to an indication of the first terminal.
  • the Ts 2 is determined according to the resource selection window indicated by the first terminal, or the Ts 2 is determined according to the remaining delay budget indicated by the first terminal.
  • the time unit m 2 or m 2 +q 2 *Prxlg 2 is a time unit in the resource pool.
  • the exclusion unit is used to:
  • the first resource in the resource selection window or the periodic resource corresponding to the first resource overlaps with the Q by 1 time unit, then exclude the first resource; and/or, assume that in the Q
  • the first sideline control information with the same content is received within 2 time units, if the second resource in the resource selection window or the periodic resource corresponding to the second resource is the same as the received or assumed received
  • the resources indicated by the first side row control information overlap, then exclude the second resource;
  • the second terminal performs or does not perform the step of resource exclusion according to the Q 1 time units according to the instruction of the first terminal or network configuration or pre-configuration.
  • 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 1000 may include: a processor 1001 , a transceiver 1002 and a memory 1003 .
  • the processor 1001 includes one or more processing cores, and the processor 1001 executes various functional applications and information processing by running software programs and modules.
  • the transceiver 1002 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 1003 may be connected to the processor 1001 and the transceiver 1002 .
  • the memory 1003 may be used to store a computer program executed by the processor, and the processor 1001 is used to execute the computer program, so as to implement various steps performed by the second terminal in the foregoing method embodiments.
  • the processor 1001 is configured to determine the resource set according to the first time unit.
  • the processor 1001 is configured to determine a resource set suitable for transmission by the first terminal according to the first time unit.
  • the first time unit is determined based on a request signal sent by the first terminal or a time unit for sending the resource set.
  • the transceiver 1002 is configured to send the resource set to the first terminal.
  • 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.
  • the 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 above-mentioned method for determining a resource set.
  • 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 when the chip is running, is used to implement the above method for determining a resource set.
  • 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-mentioned method for determining a resource set.
  • 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

本申请公开了一种确定资源集合的方法、装置、终端及存储介质，涉及通信技术领域。该方法包括：第二终端根据第一时间单元确定适合第一终端传输的资源集合(710)；第二终端向第一终端发送资源集合(720)。本申请针对UE间协作进行资源选择/排除的场景，通过第二终端确定并向第一终端提供适合第一终端传输的资源集合，以便第一终端能够根据该资源集合，选择适合自己传输的资源或者排除不适合自己传输的资源，有效提升通信可靠性。

Description

确定资源集合的方法、装置、终端及存储介质 技术领域
本申请实施例涉及通信技术领域，特别涉及一种确定资源集合的方法、装置、终端及存储介质。
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确定资源集合的方法、装置、终端及存储介质。所述技术方案如下：
根据本申请实施例的一个方面，提供了一种确定资源集合的方法，所述方法由第二终端执行，所述方法包括：
根据第一时间单元确定适合第一终端传输的资源集合，所述第一时间单元是基于所述第一终端发送的请求信号或发送所述资源集合的时间单元确定的；
向所述第一终端发送所述资源集合。
根据本申请实施例的一个方面，提供了一种确定资源集合的装置，所述装置包括：
确定模块，用于根据第一时间单元确定适合第一终端传输的资源集合，所述第一时间单元是基于所述第一终端发送的请求信号或发送所述资源集合的时间单元确定的；
发送模块，用于向所述第一终端发送所述资源集合。
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收发器；
所述处理器，用于根据第一时间单元确定适合第一终端传输的资源集合，所述第一时间单元是基于所述第一终端发送的请求信号或发送所述资源集合的时间单元确定的；
所述收发器，用于向所述第一终端发送所述资源集合。
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，以实现上述确定资源集合的方法。
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，用于实现上述确定资源集合的方法。
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，以实现上述确定资源集合的方法。
本申请实施例提供的技术方案可以包括如下有益效果：
针对UE间协作进行资源选择/排除的场景，通过第二终端确定并向第一终端提供适合第一终端传输的资源集合，以便第一终端能够根据该资源集合，选择适合自己传输的资源或者排除不适合自己传输的资源，有效提升通信可靠性。
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确定资源集合的方法的流程图；
图7是本申请另一个实施例提供的确定资源集合的方法的流程图；
图8是本申请一个实施例提供的确定资源集合的示意图；
图9是本申请一个实施例提供的确定资源集合的装置的框图；
图10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 PCTCN2021128748-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 PCTCN2021128748-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 PCTCN2021128748-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 PCTCN2021128748-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 PCTCN2021128748-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。
4.将资源预留周期转化为逻辑时隙：
在上文中提到，终端设备发送第一侧行控制信息指示时频资源，预留接下来将要使用的资源。而进行资源选择的终端设备在侦听时，会解码其他终端设备发送的第一侧行控制信息，获知其他终端设备所预留的资源，在资源选择时排除对应资源，从而避免资源碰撞。进行资源选择的终端设备在进行资源排除时，针对解码的第一侧行控制信息中的“resourcereservation period”域指示的物理时间(例如100毫秒)，会将其转化为相应的逻辑时隙数目后，再利用该逻辑时隙的数目进行资源排除：
Figure PCTCN2021128748-appb-000006
上述公式中，Prsvp为终端设备侦听到的第一侧行控制信息中“resourcereservationperiod”指示的资源预留周期，P’rsvp为计算出的对应的逻辑时隙数目。T’max为一个SFN(System Frame Number，系统帧号)周期或10240毫秒内属于终端设备所用资源池或发送资源池的时隙数目。
另外，上述根据资源池内允许的资源预留周期进行资源排除，将资源预留周期转化为逻辑时隙也是用上述公式。此时，Prsvp为资源池内允许的资源预留周期，P’rsvp为计算出的对应的逻辑时隙数目。
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。
UE 1接收到辅助信息后，利用辅助信息进行资源选取或资源排除。例如，辅助信息包含的资源集合中的资源为适合UE 1传输的资源，则UE 1在自身确定的候选资源集合和该资源集合的交集中选取传输资源。
目前标准讨论已经形成结论，针对UE间协作进行资源选择/排除的场景，支持UE 1发送请求信号至UE 2，收到请求信号的UE 2发送适合UE 1传输的资源集合至UE 1，辅助UE 1进行资源选择。在UE 2确定适合UE 1传输的资源集合时，尽可能重用上述终端设备确定候选资源集合的步骤(Step 1)。因此，在UE 2重用上述Step 1时，时隙n1如何确定，标准尚未讨论。本申请基于n1的确定进行分类讨论，给出UE 2根据不同的n1确定资源集合的方 案。
请参考图6，其示出了本申请一个实施例提供的确定资源集合的方法的流程图，该方法可以包括如下几个步骤(610～620)中的至少一个步骤：
步骤610，第二终端根据第一时间单元确定资源集合。
本申请提供的技术方案，针对UE间协作进行资源选择/排除的场景，第一终端和第二终端是两个进行协作的终端设备。第二终端向第一终端提供资源集合，该资源集合用于辅助第一终端进行资源选择/排除。可选地，该资源集合可以是适合第一终端传输的资源集合，也即该资源集合中的资源是适合第一终端传输的资源；或者，该资源集合也可以是不适合第一终端传输的资源集合，也即该资源集合中的资源是不适合第一终端传输的资源。
第二终端在向第一终端提供资源集合之前，首先要确定该资源集合。可选地，第二终端根据第一时间单元确定资源集合，该第一时间单元是确定资源集合所用的一个参考时间单元。可选地，第一时间单元在资源池内，例如第一时间单元在第一终端所用资源池内。
步骤620，第二终端向第一终端发送资源集合。
第二终端可以将确定出的资源集合，发送给第一终端。例如，第二终端可以通过与第一终端之间建立的直连链路，将资源集合直接发送给第一终端。又例如，第二终端可以通过其他设备中转，将资源集合转发给第一终端，如该其他设备可以是除第一终端和第二终端外的另一个终端设备(如第三终端)，或者该其他设备可以是接入网设备，或者其他中转设备，本申请对此不作限定。
可选地，第一终端向第二终端发送请求信号，第二终端在接收到该请求信号之后，向第一终端发送资源集合，以辅助第一终端进行资源选择/排除。可选地，请求信号用于请求第二终端为第一终端提供资源集合。
在一些其他可能的实施例中，第二终端也可以在满足特定条件时，确定并发送资源集合给第一终端。上述特定条件，比如侦听到第一终端发送的资源与其他终端设备冲突，或者周期性确定并向第一终端发送资源集合。
另外，第二终端向第一终端提供适合第一终端传输的资源集合，还是向第一终端提供不适合第一终端传输的资源集合，可以由第一终端指示，或由网络配置，或预配置，或者由第二终端自行确定，本申请对此不作限定。
在本申请实施例中，针对UE间协作进行资源选择/排除的场景，通过第二终端确定并向第一终端提供资源集合，该资源集合能够为第一终端的资源选择/排除提供辅助作用，从而有助于提升第一终端在进行资源选择/排除时的准确性，进而提升通信可靠性。
请参考图7，其示出了本申请另一个实施例提供的确定资源集合的方法的流程图，该方法可以包括如下步骤(710～720)中的至少之一：
步骤710，第二终端根据第一时间单元确定适合第一终端传输的资源集合。
步骤720，第二终端向第一终端发送资源集合。
在本实施例中，针对UE间协作进行资源选择/排除的场景，第二终端向第一终端提供适合该第一终端传输的资源集合，也即该资源集合中的资源是适合第一终端传输的资源。
可选地，第一终端向第二终端发送请求信号，第二终端在接收到该请求信号之后，向第一终端发送其确定出的适合第一终端传输的资源集合。可选地，请求信号用于请求第二终端为第一终端提供适合第一终端传输的资源集合。
在一些其他可能的实施例中，第二终端也可以在满足特定条件时，确定并发送适合第一终端传输的资源集合给第一终端。上述特定条件，比如侦听到第一终端发送的资源与其他终端设备冲突，或者周期性确定并向第一终端发送资源集合。
在本申请实施例中，针对UE间协作进行资源选择/排除的场景，通过第二终端确定并向第一终端提供适合第一终端传输的资源集合，以便第一终端能够根据该资源集合，选择适合 自己传输的资源或者排除不适合自己传输的资源，有效提升通信可靠性。
在一些实施例中，第一时间单元是基于第一终端发送的请求信号或发送资源集合的时间单元确定的。其中，请求信号是第一终端发送给第二终端的，用于请求第二终端为第一终端提供资源集合。资源集合即为上文介绍的第二终端发送给第一终端的资源集合，用于为第一终端进行资源选择/排除时提供辅助信息。
在一些实施例中，第一时间单元为第二时间单元，或者，第一时间单元为第二时间单元之后第一个属于资源池的时间单元。其中，第二时间单元至少包括以下任意一种：
1)第二终端接收请求信号的时间单元；
2)第二终端接收请求信号的时间单元加或减第一偏移量；
3)第二终端发送资源集合的时间单元；
4)第二终端发送资源集合的时间单元加或减第二偏移量；
5)第二终端接收的请求信号中指示的时间单元。
可选地，第一偏移量由网络配置，或预配置，或是标准规定的预设值，或由第一终端指示，或由第二终端自行确定。
可选地，第二偏移量由网络配置，或预配置，或是标准规定的预设值，或由第一终端指示，或由第二终端自行确定。
在一些实施例中，第一时间单元为第二时间单元，或者，第一时间单元为第二时间单元之后第一个属于资源池的时间单元。第二时间单元为第二终端满足特定条件的时间单元。可选地，上述特定条件，比如侦听到第一终端发送的资源与其他终端设备冲突，或者周期性确定并向第一终端发送资源集合。可选地，第一终端发送的资源为第一终端进行传输的资源。
在一些实施例中，如果第二时间单元在资源池内，则第一时间单元为第二时间单元；或者，如果第二时间单元不在资源池内，则第一时间单元为第二时间单元之后第一个属于资源池的时间单元。
可选地，资源池由第一终端指示，或由网络配置，或预配置。示例性地，该资源池为第二终端的接收资源池，或为第一终端的发送资源池，或为根据第一终端指示的资源池标识确定的资源池，或为收到请求信号的资源池。
在本申请实施例中，所说的第一时间单元在第二时间单元之后，是指在时域上第一时间单元在第二时间单元之后。以时间单元为时隙为例，各个时隙在时域上增序排列，例如依次为时隙1、时隙2、时隙3……，那么时隙3在时隙1之后，时隙3也在时隙2之后。
在一些实施例中，第二终端根据第一时间单元确定适合第一终端传输的资源集合，包括如下子步骤1)～2)：
1)第二终端根据第一时间单元确定目标时间单元。
可选地，目标时间单元包括：根据第一时间单元和第二终端未侦听的时间单元确定的Q 1个时间单元，和/或，根据第一时间单元和第二终端侦听到第一侧行控制信息的时间单元确定的Q 2个时间单元，Q 1为正整数，Q 2为正整数。
可选地，第二终端未侦听的时间单元是指第二终端在资源侦听窗中未侦听的时间单元。
可选地，第二终端侦听到第一侧行控制信息的时间单元是指第二终端在资源侦听窗中侦听到第一侧行控制信息的时间单元。
另外，第一侧行控制信息是指终端设备发送的用于资源指示或预留的信息。有关第一侧行控制信息的介绍说明，可参见上文，此处不作赘述。
可选地，上述Q 1个时间单元为时间单元m 1+q 1*Prxlg 1，q 1是取值在[1,Q 1]中的正整数；其中，m 1为第二终端未侦听的时间单元，Prxlg 1为Prx 1转化为逻辑时隙后的数目，Prx 1为资源池内允许的每一种或任意一种资源预留周期。有关该资源池的介绍可参见上文实施例，例如该资源池可以是由第一终端指示的，或由网络配置的，或预配置的。可选地，如果Prx 1小 于Ts 1且时间单元m 1+Prxlg 1为第一时间单元或在第一时间单元之后，则Q 1为
Figure PCTCN2021128748-appb-000007
否则Q 1为1；其中，Ts 1为大于或等于0的数值。可选地，Ts 1根据第一终端的指示确定。例如，Ts 1根据第一终端指示的资源选择窗确定，或者，Ts 1根据第一终端指示的剩余时延预算确定。示例性地，Ts 1根据第一终端指示的资源选择窗的结束时间确定。可选地，时间单元m 1或m 1+q 1*Prxlg 1为资源池内的时间单元。例如，资源池的时间单元集合为{t’0,t’1,…,t’(Tmax-1)}，Tmax为一个SFN周期或10240ms内属于资源池的时间单元数目，则时间单元m 1或m 1+q 1*Prxlg 1为t’m 1或t’(m 1+q 1*Prxlg 1)。
可选地，上述Q 2个时间单元为时间单元m 2+q 2*Prxlg 2，q 2是取值在[1,Q 2]中的正整数；其中，m 2为第二终端侦听到第一侧行控制信息的时间单元，Prxlg 2为Prx 2转化为逻辑时隙后的数目，Prx 2为第二终端侦听到的第一侧行控制信息中的资源预留周期。可选地，如果Prx 2小于Ts 2且时间单元m 2+Prxlg 2为第一时间单元或在第一时间单元之后，则Q 2为
Figure PCTCN2021128748-appb-000008
否则Q 2为1；其中，Ts 2为大于或等于0的数值。可选地，Ts 2根据第一终端的指示确定。例如，Ts 2根据第一终端指示的资源选择窗确定，或者，Ts 2根据第一终端指示的剩余时延预算确定。示例性地，Ts 2根据第一终端指示的资源选择窗的结束时间确定。可选地，时间单元m 2或m 2+q 2*Prxlg 2为资源池内的时间单元。例如，资源池的时间单元集合为{t’0,t’1,…,t’(Tmax-1)}，Tmax为一个SFN周期或10240ms内属于资源池的时间单元数目，则时间单元m 2或m 2+q 2*Prxlg 2为t’m 2或t’(m 2+q 2*Prxlg 2)。
2)第二终端根据目标时间单元对资源选择窗内的资源进行排除，将资源选择窗内的剩余资源确定为资源集合。
资源排除可以包括如下两种情况，且这两种情况可以择一使用，也可以结合使用，本申请对此不作限定。
情况1：如果资源选择窗内的第一资源或该第一资源对应的周期性资源，与Q 1个时间单元重叠，则第二终端排除该第一资源；
情况2：假定在Q 2个时间单元内收到相同内容的第一侧行控制信息，如果资源选择窗内的第二资源或该第二资源对应的周期性资源，与收到的或假定收到的第一侧行控制信息指示的资源重叠，则第二终端排除第二资源。
在上述情况1中，第一资源对应的周期性资源可以是与该第一资源对应的一系列周期性资源，且与该第一资源对应的一系列周期性资源包括资源选择窗内的第一资源。在上述情况2中，第二资源对应的周期性资源可以是与该第二资源对应的一系列周期性资源，且与该第二资源对应的一系列周期性资源包括资源选择窗内的第二资源。
在完成资源排除之后，第二终端将资源选择窗内的剩余资源确定为资源集合，该资源集合即为上文介绍的第二终端提供给第一终端的资源集合。
可选地，第二终端根据第一终端的指示或网络配置或预配置，执行或不执行根据Q 1个时间单元进行资源排除的步骤。
在本申请实施例中，针对UE间协作进行资源选择/排除的场景，第二终端根据侦听到第一侧行控制信息和/或未侦听时隙进行排除，将未被排除的资源指示给第一终端，辅助第一终端进行资源选择/排除，可以有效提升通信可靠性。
下面，结合图8，通过示例性实施例对本申请技术方案进行介绍说明。
如图8所示，时隙p为以下任意一种：
1)第二终端接收请求信号的时隙；
2)第二终端接收请求信号的时隙加或减第一偏移量；
3)第二终端发送资源集合的时隙；
4)第二终端发送资源集合的时隙加或减第二偏移量；
5)第二终端接收的请求信号中指示的时隙。
时隙p+T 1到p+T 2为资源选择窗10，T 1根据第一终端的指示确定或与上文介绍的T 1确定方式一致或取决于第二终端实现。例如，第一终端在请求信号中直接指示T 1的值。T 2根据第一终端的指示确定或取决于第二终端实现。例如，第一终端在请求信号中直接指示T 2的值。又例如，第一终端在请求信号中指示剩余时延预算，第二终端根据剩余时延预算确定T 2。
时隙p-T 0到p-T proc,0(不包括p-T proc,0)为资源侦听窗20。第二终端在资源侦听窗20进行资源侦听，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，第二终端在资源侦听窗20内属于第一终端指示的资源池或第二终端的接收资源池的时隙中进行资源侦听。可选地，第二终端在除自己发送时隙外的时隙侦听其他终端发送的第一侧行控制信息，在时隙p，第二终端使用p-T 0到p-T proc,0资源侦听的结果。
Step 1：
第二终端将资源选择窗10内所有属于第一终端指示的资源池或第二终端的接收资源池的可用资源作为资源集合A，资源集合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。记资源集合A中资源的初始数量为M total。第二终端根据资源侦听窗20内的未侦听时隙(Step1-1)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。第二终端判断资源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)。
如果时隙p在第一终端指示的资源池或第二终端的接收资源池内，则第一时间单元为时隙p。如果时隙p不在第一终端指示的资源池或第二终端的接收资源池内，则第一时间单元为时隙p之后属于第一终端指示的资源池或第二终端的接收资源池的第一个时隙。在图8示例中，时隙p不在第一终端指示的资源池或第二终端的接收资源池内，时隙p之后属于第一终端指示的资源池或第二终端的接收资源池的第一个时隙为时隙r，则第一时间单元为时隙r。
Step 1-1：
第二终端根据第一时间单元和未侦听的时隙确定对应的Q 1个时隙，即确定时隙m+q*Prxlg，q＝1,2…,Q 1。其中m为未进行侦听的时隙，Prxlg为Prx转化为逻辑时隙后的数目，Prx为第一终端指示的资源池或第二终端的接收资源池内允许的每一种或任意一种资源预留周期。如果Prx小于Ts且时隙m+Prxlg为时隙r或在时隙r之后，则Q 1为
Figure PCTCN2021128748-appb-000009
否则Q 1为1。Ts为T 2转化为毫秒后的值。上述时隙m+Prxlg在时隙r之后，是指在时域上按照时隙顺序增序排列，时隙m+Prxlg位于时隙r的后面。
例如图8子图(a)，第二终端在时隙m没有进行侦听，依次根据第一终端指示的资源池或第二终端的接收资源池内允许的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记为Prx1，Prx1小于Ts且时隙m+Prx1lg在时隙r之后，则Q 1为
Figure PCTCN2021128748-appb-000010
假定Q 1值计算为2，则对应的Q 1个时隙为图8子图(a)中从时隙m映射的以Prx1lg为间隔接下来的2个以横线阴影标识的时隙。Ts为T 2转化为毫秒后的值，Prx1lg为Prx1转化为逻辑时隙后的数值，对于其中某个资源预留周期Prx2，时隙m+Prx2lg在时隙r之后但Prx2大于Ts，则Q 1值为1，则对应的Q 1个时隙为图8子图(a)中从时隙m映射的以Prx2lg为间隔的接下来的1个点状阴影标识的时隙。Prx2lg为Prx2转化为逻辑时隙的数目。
第二终端将判断每一种预留周期对应的Q 1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，第二终端可以根据第一终端的指示或网络配置或预配置不执行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内所有属于第一终端指示的资源池或第二终端的接收资源池的可用资源再执行Step1-2。
Step 1-2：
如果第二终端在资源侦听窗20内时隙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或者该PSCCH调度的PSSCH的SL-RSRP(即与该PSCCH在同一时隙中发送的对应的PSSCH的SL-RSRP)。
如果测量的SL-RSRP大于SL-RSRP阈值，第二终端根据第一时间单元和侦听到第一侧行控制信息的时隙确定对应的Q 2个时隙，即确定时隙m+q*Prxlg，q＝1,2…,Q 2。其中m为第二终端侦听到第一侧行控制信息的时隙，Prxlg为Prx转化为逻辑时隙后的数目，Prx为第二终端侦听到第一侧行控制信息中的资源预留周期。如果Prx小于Ts且时隙m+Prxlg为时隙r或在时隙r之后，则Q 2为
Figure PCTCN2021128748-appb-000011
否则Q 2为1。Ts为T 2转化为毫秒后的值。
第二终端假定在上述Q 2个时隙内收到了相同内容的第一侧行控制信息，第二终端判断在时隙m收到的以及在上述Q 2个时隙内假定收到的第一侧行控制信息中Timeresourceassignment和Frequencyresourceassignment域指示的资源是否与资源R(x,y)或与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8子图(b)，如果第二终端在时隙m侦听到第一侧行控制信息，该第一侧行控制信息中的资源预留周期为Prx，Prx小于Ts且时隙m+Prxlg在时隙r之后，则Q 2为
Figure PCTCN2021128748-appb-000012
假定Q 2值计算为1，第二终端将假定在时隙m+Prxlg上也收到了相同内容的第一侧行控制信息。第二终端将判断在时隙m收到的第一侧行控制信息和假定在时隙m+Prxlg收到的第一侧行控制信息的“Timeresourceassignment”和“Frequencyresourceassignment”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)。Prxlg为Prx转化为逻辑时隙后的数目。
可选地，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。例如，如果在确定出初始的资源集合A之后，经过一轮资源排除过程(也即Step 1)后，该资源集合A中剩余资源大于或等于M total*X，则只需执行该一轮资源排除过程；如果在确定出初始的资源集合A之后，经过一轮资源排除过程后，该资源集合A中剩余资源不足M total*X，则将SL-RSRP阈值抬升3dB，再执行一轮资源排除过程，以此类推，直至经过某一轮资源排除过程之后资源集合A中剩余资源大于或等于M total*X，这种情况下会进行多轮的资源排除过程。
可选地，在确定出初始的资源集合A，并经过一轮资源排除过程(也即Step 1)后，也可以不执行上述判断资源排除后资源集合A中剩余资源是否大于或等于M total*X的步骤。也就是说，只执行一轮资源排除过程(也即Step 1)，在执行完这一轮资源排除过程之后，无需判断资源排除后的资源集合A中的剩余资源数目，第二终端直接执行下述步骤将经过这一轮资源排除后的资源集合A指示给第一终端。
第二终端将资源集合A指示给第一终端。
可选地，上述RSRP阈值是由第二终端侦听到的PSCCH中携带的优先级P1和第一终端指示的优先级P2确定。
可选地，上述X由第一终端指示，或取决于第二终端实现，或网络配置，或预配置。
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与终端设备生成的随机计数值相关，或者Cresel根据第一终端的指示确定，或者Cresel为1。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8子图(a)和(b)中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，时间单元m或m+q*Prxlg或y+j*Ptxlg为资源池内的时间单元。例如，资源池的时间单元集合为{t’0,t’1,…,t’(Tmax-1)}，Tmax为一个SFN周期或10240ms内属于资源池的时间单元数目，则时间单元m或m+q*Prxlg为t’m或t’(m+q*Prxlg)。
可选地，将资源预留周期转化为逻辑时隙的方式，参照上文介绍说明。
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9，其示出了本申请一个实施例提供的确定资源集合的装置的框图。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二终端，也可以设置在第二终端中。如图9所示，该装置900可以包括：确定模块910和发送模块920。
确定模块910，用于根据第一时间单元确定资源集合。
发送模块920，用于向所述第一终端发送所述资源集合。
在一些实施例中，所述确定模块910，用于根据第一时间单元确定适合第一终端传输的资源集合。可选地，所述第一时间单元是基于所述第一终端发送的请求信号或发送所述资源集合的时间单元确定的。
在一些实施例中，所述第一时间单元为第二时间单元，或者，所述第一时间单元为第二时间单元之后第一个属于资源池的时间单元；
其中，所述第二时间单元包括以下任意一种；
第二终端接收所述请求信号的时间单元：
所述第二终端接收所述请求信号的时间单元加或减第一偏移量；
所述第二终端发送所述资源集合的时间单元；
所述第二终端发送所述资源集合的时间单元加或减第二偏移量；
所述第二终端接收的所述请求信号中指示的时间单元。
在一些实施例中，如果所述第二时间单元在所述资源池内，则所述第一时间单元为所述第二时间单元；或者，如果所述第二时间单元不在所述资源池内，则所述第一时间单元为所述第二时间单元之后第一个属于所述资源池的时间单元。
在一些实施例中，所述资源池由所述第一终端指示，或由网络配置，或预配置。
在一些实施例中，所述第一偏移量由网络配置，或预配置，或是标准规定的预设值，或由所述第一终端指示，或由所述第二终端自行确定。
在一些实施例中，所述第二偏移量由网络配置，或预配置，或是标准规定的预设值，或由所述第一终端指示，或由所述第二终端自行确定。
在一些实施例中，所述确定模块910包括：
确定单元，用于根据所述第一时间单元确定目标时间单元，所述目标时间单元包括：根据所述第一时间单元和第二终端未侦听的时间单元确定的Q 1个时间单元，和/或，根据所述第一时间单元和所述第二终端侦听到第一侧行控制信息的时间单元确定的Q 2个时间单元，Q 1为正整数，Q 2为正整数；
排除单元，用于根据所述目标时间单元对资源选择窗内的资源进行排除，将所述资源选择窗内的剩余资源确定为所述资源集合。
在一些实施例中，所述Q 1个时间单元为时间单元m 1+q 1*Prxlg 1，q 1是取值在[1,Q 1]中的正整数；其中，m 1为所述第二终端未侦听的时间单元，Prxlg 1为Prx 1转化为逻辑时隙后的数目，Prx 1为资源池内允许的每一种资源预留周期。
在一些实施例中，如果Prx 1小于Ts 1且时间单元m 1+Prxlg 1为所述第一时间单元或在所述第一时间单元之后，则Q 1为
Figure PCTCN2021128748-appb-000013
否则Q 1为1；其中，Ts 1为大于或等于0的数值。
在一些实施例中，所述Ts 1根据所述第一终端的指示确定。
在一些实施例中，所述Ts 1根据所述第一终端指示的资源选择窗确定，或者，所述Ts 1根据所述第一终端指示的剩余时延预算确定。
在一些实施例中，时间单元m 1或m 1+q 1*Prxlg 1为所述资源池内的时间单元。
在一些实施例中，所述Q 2个时间单元为时间单元m 2+q 2*Prxlg 2，q 2是取值在[1,Q 2]中的正整数；其中，m 2为所述第二终端侦听到所述第一侧行控制信息的时间单元，Prxlg 2为Prx 2 转化为逻辑时隙后的数目，Prx 2为所述第二终端侦听到的所述第一侧行控制信息中的资源预留周期。
在一些实施例中，如果Prx 2小于Ts 2且时间单元m 2+Prxlg 2为所述第一时间单元或在所述第一时间单元之后，则Q 2为
Figure PCTCN2021128748-appb-000014
否则Q 2为1；其中，Ts 2为大于或等于0的数值。
在一些实施例中，所述Ts 2根据所述第一终端的指示确定。
在一些实施例中，所述Ts 2根据所述第一终端指示的资源选择窗确定，或者，所述Ts 2根据所述第一终端指示的剩余时延预算确定。
在一些实施例中，时间单元m 2或m 2+q 2*Prxlg 2为资源池内的时间单元。
在一些实施例中，所述排除单元用于：
如果所述资源选择窗内的第一资源或所述第一资源对应的周期性资源，与所述Q 1个时间单元重叠，则排除所述第一资源；和/或，假定在所述Q 2个时间单元内收到相同内容的所述第一侧行控制信息，如果所述资源选择窗内的第二资源或所述第二资源对应的周期性资源，与收到的或假定收到的所述第一侧行控制信息指示的资源重叠，则排除所述第二资源；
将所述资源选择窗内的剩余资源确定为所述资源集合。
在一些实施例中，所述第二终端根据所述第一终端的指示或网络配置或预配置，执行或不执行根据所述Q 1个时间单元进行资源排除的步骤。
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。
请参考图10，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1000可以包括：处理器1001、收发器1002以及存储器1003。
处理器1001包括一个或者一个以上处理核心，处理器1001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1002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1003可以与处理器1001以及收发器1002相连。
存储器1003可用于存储处理器执行的计算机程序，处理器1001用于执行该计算机程序，以实现上述方法实施例中的第二终端执行的各个步骤。
示例性地，所述处理器1001用于根据第一时间单元确定资源集合。可选地，所述处理器1001用于根据第一时间单元确定适合第一终端传输的资源集合。可选地，所述第一时间单元是基于所述第一终端发送的请求信号或发送所述资源集合的时间单元确定的。
所述收发器1002用于向所述第一终端发送所述资源集合。
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，以实现上述确定资源集合的方法。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，用于实现上述确定资源集合的方法。
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，以实现上述确定资源集合的方法。
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 (42)

  1. 一种确定资源集合的方法，其特征在于，所述方法由第二终端执行，所述方法包括：
    根据第一时间单元确定适合第一终端传输的资源集合，所述第一时间单元是基于所述第一终端发送的请求信号或发送所述资源集合的时间单元确定的；
    向所述第一终端发送所述资源集合。
  2. 根据权利要求1所述的方法，其特征在于，所述第一时间单元为第二时间单元，或者，所述第一时间单元为第二时间单元之后第一个属于资源池的时间单元；
    其中，所述第二时间单元包括以下任意一种：
    所述第二终端接收所述请求信号的时间单元；
    所述第二终端接收所述请求信号的时间单元加或减第一偏移量；
    所述第二终端发送所述资源集合的时间单元；
    所述第二终端发送所述资源集合的时间单元加或减第二偏移量；
    所述第二终端接收的所述请求信号中指示的时间单元。
  3. 根据权利要求2所述的方法，其特征在于，
    如果所述第二时间单元在所述资源池内，则所述第一时间单元为所述第二时间单元；
    或者，
    如果所述第二时间单元不在所述资源池内，则所述第一时间单元为所述第二时间单元之后第一个属于所述资源池的时间单元。
  4. 根据权利要求2或3所述的方法，其特征在于，所述资源池由所述第一终端指示，或由网络配置，或预配置。
  5. 根据权利要求2至4任一项所述的方法，其特征在于，所述第一偏移量由网络配置，或预配置，或是标准规定的预设值，或由所述第一终端指示，或由所述第二终端自行确定。
  6. 根据权利要求2至5任一项所述的方法，其特征在于，所述第二偏移量由网络配置，或预配置，或是标准规定的预设值，或由所述第一终端指示，或由所述第二终端自行确定。
  7. 根据权利要求1至6任一项所述的方法，其特征在于，所述根据第一时间单元确定适合第一终端传输的资源集合，包括：
    根据所述第一时间单元确定目标时间单元，所述目标时间单元包括：根据所述第一时间单元和所述第二终端未侦听的时间单元确定的Q 1个时间单元，和/或，根据所述第一时间单元和所述第二终端侦听到第一侧行控制信息的时间单元确定的Q 2个时间单元，Q 1为正整数，Q 2为正整数；
    根据所述目标时间单元对资源选择窗内的资源进行排除，将所述资源选择窗内的剩余资源确定为所述资源集合。
  8. 根据权利要求7所述的方法，其特征在于，所述Q 1个时间单元为时间单元m 1+q 1*Prxlg 1，q 1是取值在[1,Q 1]中的正整数；其中，m 1为所述第二终端未侦听的时间单元，Prxlg 1为Prx 1转化为逻辑时隙后的数目，Prx 1为资源池内允许的每一种资源预留周期。
  9. 根据权利要求8所述的方法，其特征在于，如果Prx 1小于Ts 1且时间单元m 1+Prxlg 1为所述第一时间单元或在所述第一时间单元之后，则Q 1为
    Figure PCTCN2021128748-appb-100001
    否则Q 1为1；其中，Ts 1为大于或等于0的数值。
  10. 根据权利要求9所述的方法，其特征在于，所述Ts 1根据所述第一终端的指示确定。
  11. 根据权利要求10所述的方法，其特征在于，所述Ts 1根据所述第一终端指示的资源选择窗确定，或者，所述Ts 1根据所述第一终端指示的剩余时延预算确定。
  12. 根据权利要求8至11任一项所述的方法，其特征在于，时间单元m 1或m 1+q 1*Prxlg 1为所述资源池内的时间单元。
  13. 根据权利要求7所述的方法，其特征在于，所述Q 2个时间单元为时间单元m 2+q 2*Prxlg 2， q 2是取值在[1,Q 2]中的正整数；其中，m 2为所述第二终端侦听到所述第一侧行控制信息的时间单元，Prxlg 2为Prx 2转化为逻辑时隙后的数目，Prx 2为所述第二终端侦听到的所述第一侧行控制信息中的资源预留周期。
  14. 根据权利要求13所述的方法，其特征在于，如果Prx 2小于Ts 2且时间单元m 2+Prxlg 2为所述第一时间单元或在所述第一时间单元之后，则Q 2为
    Figure PCTCN2021128748-appb-100002
    否则Q 2为1；其中，Ts 2为大于或等于0的数值。
  15. 根据权利要求14所述的方法，其特征在于，所述Ts 2根据所述第一终端的指示确定。
  16. 根据权利要求15所述的方法，其特征在于，所述Ts 2根据所述第一终端指示的资源选择窗确定，或者，所述Ts 2根据所述第一终端指示的剩余时延预算确定。
  17. 根据权利要求13至16任一项所述的方法，其特征在于，时间单元m 2或m 2+q 2*Prxlg 2为资源池内的时间单元。
  18. 根据权利要求7至17任一项所述的方法，其特征在于，所述根据所述目标时间单元对资源选择窗内的资源进行排除，将所述资源选择窗内的剩余资源确定为所述资源集合，包括：
    如果所述资源选择窗内的第一资源或所述第一资源对应的周期性资源，与所述Q 1个时间单元重叠，则排除所述第一资源；和/或，假定在所述Q 2个时间单元内收到相同内容的所述第一侧行控制信息，如果所述资源选择窗内的第二资源或所述第二资源对应的周期性资源，与收到的或假定收到的所述第一侧行控制信息指示的资源重叠，则排除所述第二资源；
    将所述资源选择窗内的剩余资源确定为所述资源集合。
  19. 根据权利要求7至18任一项所述的方法，其特征在于，所述第二终端根据所述第一终端的指示或网络配置或预配置，执行或不执行根据所述Q 1个时间单元进行资源排除的步骤。
  20. 一种确定资源集合的装置，其特征在于，所述装置包括：
    确定模块，用于根据第一时间单元确定适合第一终端传输的资源集合，所述第一时间单元是基于所述第一终端发送的请求信号或发送所述资源集合的时间单元确定的；
    发送模块，用于向所述第一终端发送所述资源集合。
  21. 根据权利要求20所述的装置，其特征在于，所述第一时间单元为第二时间单元，或者，所述第一时间单元为第二时间单元之后第一个属于资源池的时间单元；
    其中，所述第二时间单元包括以下任意一种；
    第二终端接收所述请求信号的时间单元：
    所述第二终端接收所述请求信号的时间单元加或减第一偏移量；
    所述第二终端发送所述资源集合的时间单元；
    所述第二终端发送所述资源集合的时间单元加或减第二偏移量；
    所述第二终端接收的所述请求信号中指示的时间单元。
  22. 根据权利要求21所述的装置，其特征在于，
    如果所述第二时间单元在所述资源池内，则所述第一时间单元为所述第二时间单元；
    或者，
    如果所述第二时间单元不在所述资源池内，则所述第一时间单元为所述第二时间单元之后第一个属于所述资源池的时间单元。
  23. 根据权利要求21或22所述的装置，其特征在于，所述资源池由所述第一终端指示，或由网络配置，或预配置。
  24. 根据权利要求21至23任一项所述的装置，其特征在于，所述第一偏移量由网络配置，或预配置，或是标准规定的预设值，或由所述第一终端指示，或由所述第二终端自行确定。
  25. 根据权利要求21至24任一项所述的装置，其特征在于，所述第二偏移量由网络配置，或预配置，或是标准规定的预设值，或由所述第一终端指示，或由所述第二终端自行确定。
  26. 根据权利要求20至25任一项所述的装置，其特征在于，所述确定模块包括：
    确定单元，用于根据所述第一时间单元确定目标时间单元，所述目标时间单元包括：根据所述第一时间单元和第二终端未侦听的时间单元确定的Q 1个时间单元，和/或，根据所述第一时间单元和所述第二终端侦听到第一侧行控制信息的时间单元确定的Q 2个时间单元，Q 1为正整数，Q 2为正整数；
    排除单元，用于根据所述目标时间单元对资源选择窗内的资源进行排除，将所述资源选择窗内的剩余资源确定为所述资源集合。
  27. 根据权利要求26所述的装置，其特征在于，所述Q 1个时间单元为时间单元m 1+q 1*Prxlg 1，q 1是取值在[1,Q 1]中的正整数；其中，m 1为所述第二终端未侦听的时间单元，Prxlg 1为Prx 1转化为逻辑时隙后的数目，Prx 1为资源池内允许的每一种资源预留周期。
  28. 根据权利要求27所述的装置，其特征在于，如果Prx 1小于Ts 1且时间单元m 1+Prxlg 1为所述第一时间单元或在所述第一时间单元之后，则Q 1为
    Figure PCTCN2021128748-appb-100003
    否则Q 1为1；其中，Ts 1为大于或等于0的数值。
  29. 根据权利要求28所述的装置，其特征在于，所述Ts 1根据所述第一终端的指示确定。
  30. 根据权利要求29所述的装置，其特征在于，所述Ts 1根据所述第一终端指示的资源选择窗确定，或者，所述Ts 1根据所述第一终端指示的剩余时延预算确定。
  31. 根据权利要求27至30任一项所述的装置，其特征在于，时间单元m 1或m 1+q 1*Prxlg 1为所述资源池内的时间单元。
  32. 根据权利要求26所述的装置，其特征在于，所述Q 2个时间单元为时间单元m 2+q 2*Prxlg 2，q 2是取值在[1,Q 2]中的正整数；其中，m 2为所述第二终端侦听到所述第一侧行控制信息的时间单元，Prxlg 2为Prx 2转化为逻辑时隙后的数目，Prx 2为所述第二终端侦听到的所述第一侧行控制信息中的资源预留周期。
  33. 根据权利要求32所述的装置，其特征在于，如果Prx 2小于Ts 2且时间单元m 2+Prxlg 2为所述第一时间单元或在所述第一时间单元之后，则Q 2为
    Figure PCTCN2021128748-appb-100004
    否则Q 2为1；其中，Ts 2为大于或等于0的数值。
  34. 根据权利要求33所述的装置，其特征在于，所述Ts 2根据所述第一终端的指示确定。
  35. 根据权利要求34所述的装置，其特征在于，所述Ts 2根据所述第一终端指示的资源选择窗确定，或者，所述Ts 2根据所述第一终端指示的剩余时延预算确定。
  36. 根据权利要求32至35任一项所述的装置，其特征在于，时间单元m 2或m 2+q 2*Prxlg 2为资源池内的时间单元。
  37. 根据权利要求26至36任一项所述的装置，其特征在于，所述排除单元用于：
    如果所述资源选择窗内的第一资源或所述第一资源对应的周期性资源，与所述Q 1个时间单元重叠，则排除所述第一资源；和/或，假定在所述Q 2个时间单元内收到相同内容的所述第一侧行控制信息，如果所述资源选择窗内的第二资源或所述第二资源对应的周期性资源，与收到的或假定收到的所述第一侧行控制信息指示的资源重叠，则排除所述第二资源；
    将所述资源选择窗内的剩余资源确定为所述资源集合。
  38. 根据权利要求26至37任一项所述的装置，其特征在于，所述第二终端根据所述第一终端的指示或网络配置或预配置，执行或不执行根据所述Q 1个时间单元进行资源排除的步骤。
  39. 一种终端设备，其特征在于，所述终端设备包括处理器和收发器；
    所述处理器，用于根据第一时间单元确定适合第一终端传输的资源集合，所述第一时间单元是基于所述第一终端发送的请求信号或发送所述资源集合的时间单元确定的；
    所述收发器，用于向所述第一终端发送所述资源集合。
  40. 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19任一项所述的方法。
  41. 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19任一项所述的方法。
  42. 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19任一项所述的方法。
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