WO2022140934A1 - Wireless communication method and terminal device - Google Patents
Wireless communication method and terminal device Download PDFInfo
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- WO2022140934A1 WO2022140934A1 PCT/CN2020/140238 CN2020140238W WO2022140934A1 WO 2022140934 A1 WO2022140934 A1 WO 2022140934A1 CN 2020140238 W CN2020140238 W CN 2020140238W WO 2022140934 A1 WO2022140934 A1 WO 2022140934A1
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- H—ELECTRICITY
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- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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Definitions
- the embodiments of the present application relate to the field of communication, and more particularly, to a method and terminal device for wireless communication.
- the sideline transmission performance can be improved through cooperation between terminals.
- how to trigger the inter-terminal cooperation is an urgent problem to be solved.
- the embodiments of the present application provide a wireless communication method and terminal device, and provide conditions for triggering cooperation between terminals, so that the cooperation between terminals can be triggered at an appropriate time, and the side effect in scenarios with hidden station, half-duplex and other problems can be improved. line transfer performance.
- a method for wireless communication comprising:
- the first terminal When the first condition is satisfied, the first terminal sends first information to the second terminal, where the first information is used to trigger inter-terminal cooperation.
- a terminal device for executing the method in the above-mentioned first aspect.
- the terminal device includes functional modules for executing the method in the first aspect.
- a terminal device including a processor and a memory.
- the memory is used to store a computer program
- the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect.
- an apparatus for implementing the method in the above-mentioned first aspect.
- the apparatus includes: a processor for invoking and running a computer program from a memory, so that a device in which the apparatus is installed executes the method in the above-mentioned first aspect.
- a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute the method in the above-mentioned first aspect.
- a computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of the first aspect above.
- a computer program which, when run on a computer, causes the computer to perform the method of the above-mentioned first aspect.
- the above technical solutions provide conditions for triggering inter-terminal collaboration, so that inter-terminal collaboration can be triggered at an appropriate time, improving sideline transmission performance in scenarios with hidden station, half-duplex and other problems.
- FIG. 1 is a schematic diagram of a communication system architecture provided by the present application.
- FIG. 2 is a schematic diagram of another communication system architecture provided by the present application.
- FIG. 3 is a schematic diagram of the physical layer structure of NR-V2X provided by the present application.
- FIG. 4 is a schematic diagram of resource reservation of NR-V2X provided by the present application.
- FIG. 5 is a schematic diagram of resource selection or resource reselection of NR-V2X provided by the present application.
- FIG. 6 is a schematic diagram of resource re-evaluation of NR-V2X provided by the present application.
- FIG. 7 is a schematic diagram of resource preemption of NR-V2X provided by the present application.
- FIG. 8 is a schematic diagram of a concealed station provided by the present application.
- FIG. 9 is a schematic diagram of measuring CBR/CR provided by the present application.
- FIG. 10 is a schematic flowchart of a method for wireless communication according to an embodiment of the present application.
- FIG. 11 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
- FIG. 12 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
- Fig. 13 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.
- Fig. 14 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
- GSM Global System of Mobile communication
- CDMA Code Division Multiple Access
- CDMA Wideband Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- LTE-A Advanced Long Term Evolution
- NR New Radio
- NTN Non-Terrestrial Networks
- UMTS Universal Mobile Telecommunication System
- WLAN Wireless Local Area Networks
- Wireless Fidelity Wireless Fidelity
- WiFi fifth-generation communication
- D2D Device to Device
- M2M Machine to Machine
- MTC Machine Type Communication
- V2V Vehicle to Vehicle
- V2X Vehicle to everything
- the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.
- Carrier Aggregation, CA Carrier Aggregation, CA
- DC Dual Connectivity
- SA standalone
- the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered unshared spectrum.
- the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
- user equipment User Equipment, UE
- access terminal subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
- the terminal device may be a station (STATION, ST) in the WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a Wireless Local Loop (WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
- PLMN Public Land Mobile Network
- the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).
- the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
- a mobile phone Mobile Phone
- a tablet computer Pad
- a computer with a wireless transceiver function a virtual reality (Virtual Reality, VR) terminal device
- augmented reality (Augmented Reality, AR) terminal Equipment wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
- the terminal device may also be a wearable device.
- Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
- a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
- wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
- the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks
- the network device may have a mobile feature, for example, the network device may be a mobile device.
- the network device may be a satellite or a balloon station.
- the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc.
- the network device may also be a base station set in a location such as land or water.
- a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device (
- the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell).
- Pico cell Femto cell (Femto cell), etc.
- These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
- the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship.
- a indicates B it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
- corresponding may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.
- predefinition may be implemented by pre-saving corresponding codes, forms, or other means that can be used to indicate relevant information in devices (for example, including terminal devices and network devices).
- the implementation method is not limited.
- predefined may refer to the definition in the protocol.
- the "protocol” may refer to a standard protocol in the communication field, for example, may include the LTE protocol, the NR protocol, and related protocols applied in future communication systems, which are not limited in this application.
- FIG. 1 is a schematic diagram of a communication system to which an embodiment of the present application is applied.
- the transmission resources of the vehicle-mounted terminals (the vehicle-mounted terminal 121 and the vehicle-mounted terminal 122 ) are allocated by the base station 110 , and the vehicle-mounted terminal transmits data on the sidelink according to the resources allocated by the base station 110 .
- the base station 110 may allocate resources for single transmission to the terminal, or may allocate resources for semi-static transmission to the terminal.
- FIG. 2 is a schematic diagram of another communication system to which the embodiments of the present application are applicable.
- the vehicle-mounted terminals (the vehicle-mounted terminal 131 and the vehicle-mounted terminal 132 ) independently select transmission resources for data transmission on the resources of the side link.
- the in-vehicle terminal may randomly select transmission resources, or select transmission resources by means of listening.
- the physical layer structure of NR-V2X is shown in Figure 3, in which the Physical Sidelink Control Channel (PSCCH) is used to transmit the first sidelink control information (Sidelink Control Information, SCI), and the physical sidelink shared channel ( Physical Sidelink Shared Channel, PSSCH) is used to carry data and the second SCI, PSCCH and PSSCH are sent in the same time slot.
- PSCCH Physical Sidelink Control Channel
- SCI Segment Control Information
- PSSCH Physical Sidelink Shared Channel
- the terminal selects resources by itself to send data.
- Resource reservation is the premise of resource selection.
- Resource reservation means that the terminal sends the first SCI in the PSCCH to reserve resources to be used next.
- resource reservation within a transport block (TB) is supported as well as resource reservation between TBs, as shown in Figure 4.
- the terminal sends the first SCI, and uses the "time domain resource assignment (Time resource assignment)" and "frequency domain resource assignment (Frequency resource assignment)" fields to indicate the N time-frequency resources of the current TB (including the resources used for current transmission).
- N ⁇ Nmax, in NR-V2X Nmax is equal to 2 or 3. Meanwhile, the above N indicated time-frequency resources should be distributed in W time slots. In NR-V2X, W is equal to 32. For example, in TB 1 shown in FIG.
- the terminal uses the first SCI sent in the PSCCH of retransmission 1 to indicate the time-frequency resources of retransmission 1 and retransmission 2, and retransmission 1 and retransmission 2 are in the time domain. distributed over 32 time slots.
- the "resource reservation period (Resource reservation period)" field is used to reserve resources between TBs.
- the terminal 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 TB 1, which are marked as ⁇ (t 1 , f 1 ), (t 2 , f 2 ) ⁇ .
- t 1 and t 2 represent the time domain positions of the TB 1 initial transmission and retransmission 1 resources
- f 1 and f 2 represent the corresponding frequency domain positions.
- the first SCI also indicates time-frequency resources ⁇ (t 1 +100, f 1 ), (t 2 +100, f 2 ) ⁇ , these two resources are used for the transmission of TB 2 initial transmission and retransmission 1.
- the first SCI sent in retransmission 1 of TB 1 also reserves the time-frequency resources of retransmission 1 and retransmission 2 of TB 2 by using the "Resource reservation period" field.
- the possible values of the "Resource reservation period" field are 0, 1-99, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000 milliseconds, which is more flexible than LTE V2X .
- the terminal determines the possible values according to the resource pool used.
- the value e in the resource pool configuration is the resource reservation period set M, exemplarily, e is less than or equal to 16.
- the above-mentioned reservation between TBs can be activated or deactivated in units of resource pools.
- the "Resource reservation period" field is not included in the first SCI.
- the value of the "Resource reservation period” field used by the terminal that is, the resource reservation period, will not change. Every time the terminal sends the first SCI, it uses the "Resource reservation period” in it. ” field reserves the resources of the next cycle for the transmission of another TB, so as to achieve periodic semi-persistent transmission.
- UE 1 can obtain the first SCI sent by other UEs by listening to PSCCHs sent by other UEs, so as to know the resources reserved by other UEs. When UE 1 selects resources, it will exclude resources reserved by other UEs, thereby avoiding resource collision.
- the terminal triggers resource selection or reselection at time slot n, and the resource selection window starts from n+T1 and ends at n+T2.
- the terminal determines T2 min from the value set according to the priority of the data to be sent by the terminal.
- the terminal determines T2 min from the set ⁇ 1, 5, 10, 20 ⁇ according to the priority of the data to be sent by the terminal.
- T2 min is greater than or equal to the remaining delay budget of the service
- T2 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 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 ms.
- the terminal performs resource monitoring from n-T0 to nT proc,0 , and the value of T0 is 100 or 1100 milliseconds.
- T proc,0 is 1, 1, 2, and 4 time slots.
- the terminal will listen to the first sideline control information sent by other terminals in each time slot (except its own transmission time slot). After time slot n triggers resource selection or reselection, the terminal uses n-T0 to nT proc ,0 result of resource listening.
- the terminal takes all available resources belonging to the resource pool used by the terminal in the resource selection window as the resource set A, and any resource in the set A is denoted as R(x, y), where x and y indicate the frequency domain position and time domain position of the resource respectively. .
- R(x, y) the resource in the set A
- x and y indicate the frequency domain position and time domain position of the resource respectively.
- Ptxlg is the number after Ptx is converted into logical time slots
- Ptx is the resource reservation period determined by the terminal for resource selection, and is one of the values in the resource reservation period set M in the resource pool configuration used by the terminal, which is also used for resource selection.
- Prxlg is the number of Prx converted into logical time slots.
- Prx is the resource reservation period indicated by "Resource reservation period" in the first SCI transmitted in the PSCCH heard by the terminal. Since the terminal does not listen in the time slot m, here Prx is all possible values in the resource reservation period set M in the resource pool configuration used by the terminal, that is, the terminal will determine each value in M to calculate Whether the outgoing time slot m+q*Prxlg overlaps with the resource R(x,y+j*Ptxlg).
- Tscal is equal to the value of T2 converted to milliseconds.
- the terminal does not listen in the time slot m, and sequentially selects a Prx from the resource reservation period set M in the resource pool configuration used for resource exclusion.
- the time slot m+q *Prxlg is the time slot marked by the dotted shading in the subgraph 1 of FIG. 5 .
- the terminal may not perform the above Step 1-1.
- Step 1-2 If the terminal senses the first SCI (v is the frequency domain position of the resource) transmitted in the PSCCH on the resource E(v, m) in the time slot m in the listening window, measure the side of the PSCCH. Sidelink Reference Signal Received Power (SL-RSRP) or the SL-RSRP of the PSSCH scheduled by the PSCCH (that is, the SL-RSRP of the corresponding PSSCH sent in the same time slot as the PSCCH), if the measured If the SL-RSRP is greater than the SL-RSRP threshold, and the resource pool used by the UE activates resource reservation between TBs, the terminal assumes that the first sideline control information with the same content is received on the timeslot m+q*Prxlg.
- SL-RSRP Sidelink Reference Signal Received Power
- the terminal assumes that the first sideline control information with the same content is received on the timeslot m+q*Prxlg.
- Tscal is equal to the value of T2 converted to milliseconds.
- Prxlg is the number after Prx is converted into logical time slots, and Prx is the resource reservation period indicated by "Resource reservation period" in the first SCI transmitted in the PSCCH heard by the terminal.
- the terminal will judge the first SCI received at time slot m and the resources indicated by the "Time resource assignment” and “Frequency resource assignment” fields of the Q first SCIs assumed to be received and the resource R(x,y+j* Ptxlg) whether they overlap, and if so, exclude the corresponding resource R(x, y) from the set A.
- Ptxlg is the number after Ptx is converted into logical time slots
- Ptx is the resource reservation period determined by the terminal performing resource selection.
- the terminal senses the first SCI in PSCCH on time slot m resource E(v, m), and decodes Prx>Tscal, and calculates that Q is equal to 1, the terminal will assume that it has received the same on time slot m+Prxlg Content's first SCI.
- the terminal will judge the resources 1, 2, 3, and 4 indicated by the "Time resource assignment” and "Frequency resource assignment" fields of the first SCI received at time slot m and assuming that the first SCI received at time slot m+Prxlg Whether , 5, 6 overlap with resource R(x, y+j*Ptxlg), if they overlap, resource R(x, y) is excluded from resource set A.
- the terminal only judges the "Time resource assignment" and "Frequency assignment" of the first SCI received in the time slot m Whether the resource indicated by the resource assignment" field overlaps with the resource R(x,y+j*Ptxlg), if it does overlap, the resource R(x,y) is excluded from the resource set A.
- the resource R(x, y+j*Ptxlg) is equal to R(x, y).
- the SL-RSRP threshold is raised by 3 decibels (dB), and Step 1 is performed again.
- the physical layer reports the resource set A after resource exclusion to the upper layer as a candidate resource set.
- the terminal will perform resource exclusion according to time slot m and each value of resource reservation period set M in the resource pool configuration used by the terminal. . Specifically, the terminal will determine a series of time slots according to the time slot m, the upper bound T2 of the resource selection window, and the value of the resource reservation period in the resource pool configuration, denoted as time slot set 1 . The terminal will determine a series of resources according to the resource R(x, y), the counter value generated by itself, and the resource reservation period used by itself, which is denoted as resource set 1. If resource set 1 and slot set 1 overlap, resource R(x, y) is excluded from resource set A. The above R(x, y) is any resource in the resource set A.
- the terminal may not perform the above Step 1-1.
- the terminal senses the first SCI (v is the frequency domain position of the resource) transmitted in the PSCCH on the resource E(v, m) in the time slot m in the listening window, it measures the SL- value of the PSCCH.
- the terminal will determine a series of parameters based on the "Time resource assignment”, “Frequency resource assignment”, “resource reservation period” fields in the PSCCH, the upper bound T2 of the resource selection window, and the time slot m.
- the resource is recorded as resource set 1, and a series of resources are determined according to the resource R(X, Y) and the counter value generated by itself, as well as the resource reservation period used by itself, and it is recorded as resource set 2. If the resource set 1 and the resource set 2 overlap, the terminal excludes the resource R(X, Y) from the resource set A.
- the terminal will listen to the "Time resource assignment", "Frequency resource assignment" fields in the PSCCH, and the time slot m. Determine a series of resources, denoted as resource set 1. If resource set 1 and R(X, Y) overlap, the terminal excludes resource R(X, Y) from resource set A.
- R(X, Y) refers to any resource in the resource set A.
- Step 2 The upper layer randomly selects resources from the reported candidate resource set to send data. That is, the terminal randomly selects resources from the candidate resource set to send data.
- the above RSRP threshold is determined by the priority P1 carried in the PSCCH heard by the terminal and the priority P2 of the data to be sent by the terminal.
- the configuration of the resource pool used by the terminal includes an SL-RSRP threshold table, and the SL-RSRP threshold table includes the SL-RSRP thresholds corresponding to all priority combinations.
- the configuration of the resource pool can be network configuration or pre-configured.
- the SL-RSRP thresholds corresponding to different priority combinations are represented by ⁇ ij , where i in ⁇ ij is the priority The value of the priority level P1, j is the value of the priority level P2.
- the terminal When the terminal detects the PSCCH sent by other UEs, obtains the priority P1 carried in the first sideline control information transmitted in the PSCCH and the priority P2 of the data to be sent, and the terminal determines the SL-RSRP by looking up Table 1 above. threshold.
- Whether the terminal 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.
- the configuration of the resource pool can be network configuration or pre-configured.
- Prxlg/Ptxlg is the number of logical time slots converted by Prx/Ptx: Assuming that one time slot is equal to 1 millisecond and Prx is 5 milliseconds, among these 5 time slots, 2 time slots may be time division duplex Downlink time slots in (Time Division Duplex, TDD) mode or time slots for sending synchronization signals, these time slots are not included in the Sidelink resource pool, so it is necessary to convert the 5 milliseconds represented by Prx into 3 logical time slots. time slot, ie Prxlg.
- the configuration of the resource pool used by the terminal includes the corresponding relationship between the priority and the above possible values, and the terminal 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 either configured by the network or pre-configured.
- NR-V2X also supports re-evaluation (Re-evaluation) for resources that have been selected but not indicated by sending the first SCI after the resource selection is completed.
- resources x, y, z, u, and v are time-frequency resources selected by the terminal in time slot n, and resource y is located in time slot m.
- resources z and u that the terminal will send the first SCI to indicate for the first time in resource y (resource y has been indicated by the first SCI in resource x before).
- the terminal performs the above Step 1 at least once in the time slot mT 3 , that is, at least in the time slot mT 3 , determines the resource selection window and the listening window according to the above, and executes the above Step 1 to exclude resources in the resource selection window to obtain candidate resources. gather.
- the terminal performs the above Step 2 to reselect the time-frequency resources in the resource z and u that are not in the candidate resource set.
- the terminal can also reselect any selected but failed time-frequency resources.
- Send the resources indicated by the first SCI for example, any one or more of resources z, u, and v.
- T 3 is equal to T proc,1 . (The dotted arrow in Figure 6 indicates that the first SCI indication is about to be sent, and the solid arrow indicates that the first SCI indication has been sent)
- NR-V2X supports resource preemption (Pre-emption) mechanism.
- Pre-emption resource preemption
- the conclusions about the resource preemption mechanism are all described from the perspective of the preempted terminal.
- the terminal continues to listen to the first SCI. If the time-frequency resource that has been selected and indicated by sending the first SCI meets the following three conditions, it means that the time-frequency resource is preempted by other terminals, and the terminal will target the time-frequency resource. This time-frequency resource triggers resource reselection:
- the detected resource indicated in the first SCI overlaps with the resource selected and indicated by the terminal.
- the SL-RSRP of the PSCCH corresponding to the first SCI heard by the terminal or the SL-RSRP of the PSSCH scheduled by the PSCCH is greater than the SL RSRP threshold.
- the priority carried in the detected first SCI is higher than the priority of the data to be sent by the terminal.
- resources w, x, y, z, and v are time-frequency resources that have been selected by the terminal in time slot n, and resource x is located in time slot m.
- the terminal performs the above Step 1 at least once in the time slot mT 3 , that is, at least in the time slot mT 3 , determines the resource selection window and the listening window according to the above, and executes the above Step 1 to exclude the resources in the resource selection window, and determine the candidate resources. gather.
- the terminal performs Step 2 to reselect the time-frequency resources in the resources x and y that satisfy the above three conditions.
- the terminal may reselect any resource that has been selected but not indicated by sending the first sideline control information, such as any one or more of resources z and v.
- the above T 3 is equal to T proc,1 .
- the above-mentioned SL-RSRP is the resource element (Resource Element) of all bearing reference signals (Demodulation Reference Signal (DMRS) or Channel State Information Reference Signal (CSI-RS)) in PSCCH or PSSCH.
- the linear mean of the received power over RE When the PSSCH is transmitted using multiple antenna ports, the SL-RSRP is the sum of the SL-RSRPs measured by the respective antenna ports.
- the first SCI is carried in the PSCCH, and mainly includes a domain related to resource sensing, which is convenient for other UEs to perform resource exclusion and resource selection after decoding.
- a second SCI is also carried, and the second SCI mainly includes a field related to data demodulation, which is convenient for other UEs to demodulate the data in the PSSCH.
- Inter-terminal cooperation is one of the research goals of sideline (SL) transmission in release 17 (release 17, R17), which is used to reduce the negative impact of problems such as concealed stations and half-duplex.
- SL sideline
- release 17, R17 release 17, R17
- UE A does not receive the first SCI sent by UE B or the measured SL-RSRP is low.
- UE A triggers resource selection or reselection, the resources reserved by UE B are not excluded, which may lead to resource collision.
- UE B is called the hidden station of UE A.
- UE C can receive the first SCI sent by UE B, and when UE C determines the first resource set, it can exclude the resources reserved by UE B, and indicate the first resource set to UE A. By selecting resources in the intersection of candidate resource sets obtained after resource exclusion, resource collision with UE B can be avoided.
- the above description is one of the examples of inter-terminal cooperation.
- the trigger mechanism of inter-terminal cooperation is mainly divided into the following two types:
- the coordinated terminal (UE A in FIG. 8 ) sends first information to trigger cooperation, and the cooperating terminal (UE C in FIG. 8 ) constructs a first resource set and sends it to UE A to assist UE A in resource selection and/or resource exclusion .
- the cooperating terminal (UE C in FIG. 8 ) actively sends the constructed first resource set to the coordinated terminal (UE A in FIG. 8 ) according to the network configuration or pre-configuration.
- the above-mentioned cooperative terminal refers to a terminal that constructs and transmits a first resource set
- a cooperative terminal refers to a terminal that uses the first resource set to perform resource selection and/or resource exclusion.
- CBR and CR are two basic metrics used to support congestion control.
- CBR is defined as: in the CBR measurement window [nc, n-1], the proportion of sub-channels with SL RSSI higher than the configured threshold to the total number of sub-channels in the resource pool, where c is equal to 100 or 100 ⁇ 2 ⁇ timeslots, ⁇ is related to the sub-carrier spacing, for example, the sub-carrier spacing of 15 kHz, 30 kHz, 60 kHz, and 120 kHz corresponds to ⁇ as 0, 1, 2, and 3.
- CR is: the number of sub-channels that the UE has used to transmit data within the range of [n-a,n-1] and the number of sub-channels included in the sideline grant obtained within the range of [n,n+b] accounts for [ The proportion of the total number of sub-channels belonging to the resource pool within the range of n-a,n+b], CR can be calculated separately for different priorities.
- a is a positive integer
- b is 0 or a positive integer
- the values of a and b are determined by the UE, but the following three conditions must be met:
- ⁇ is related to the subcarrier spacing, for example, the subcarrier spacing of 15kHz, 30kHz, 60kHz, and 120kHz corresponds to ⁇ being 0, 1, 2, 3 .
- n+b does not exceed the last transmission of the current transmission indicated by the sideline authorization
- the smallest scheduling unit in the time domain in the resource pool is a time slot
- the smallest scheduling unit in the frequency domain is a subchannel.
- the possible values of the frequency domain width of a subchannel are 10, 12, 15, 20, 25, 50, 75, and 100 PRBs.
- Figure 9 is a simple example of UE measuring CBR/CR. It is assumed that the resource pool used by the UE includes only two subchannels, all the time slots in Figure 9 belong to the resource pool used by the UE, and the UE only occupies one subchannel for sending PSSCH and PSCCH.
- the sub-channels in the sideline grant used by the UE are v 1 , v 2 , v 3 , v 4 , v 5 .
- the UE measures CR and CBR in time slot nN to determine whether Abandon transmission on subchannel v5 .
- the CBR is 2 divided by the total number of sub-channels belonging to the resource pool used by the UE in the time slot [n-N-c, n-N-1], or the CBR is 2 divided by the time slot [n-N-c, n-N-1] in the time slot [n-N-c, n-N-1] except the time slot used by the UE for transmission The total number of sub-channels belonging to the resource pool used by the UE.
- the sub-channels that the UE has used to send data in [nNa, nN-1] are v 1 , v 2 , v 3 , v 4 , for a certain priority f
- the UE sends data with priority f in subchannels v 1 , v 4
- the CR for priority f is 2 divided by the sub-channels in the resource pool used by the UE in the time slot [nNa, nN-1]
- the total number or CR is 2 divided by the total number of sub-channels in the time slot [nNa, nN] belonging to the resource pool used by the UE.
- the above N is related to the processing capability of the UE.
- the first SCI may also be referred to as a first-order SCI
- the second SCI may also be referred to as a second-order SCI.
- inter-terminal collaboration is one of the key research contents of R17SL. From the above, it is known that the triggering mechanism of inter-terminal collaboration is mainly divided into two categories, but how to trigger inter-terminal collaboration has not been disclosed.
- the present application proposes a scheme for triggering inter-terminal collaboration, which can trigger inter-terminal collaboration based on CBR/CR measurement, the RSRP threshold used by the UE, and the number of resources in the candidate resource set.
- FIG. 10 is a schematic flowchart of a method 200 for wireless communication according to an embodiment of the present application. As shown in FIG. 10 , the method 200 may include at least part of the following contents:
- the first terminal when the first condition is met, triggers inter-terminal cooperation by sending the first information, and the second terminal can determine the first resource set according to the first information, and use the first resource The set is indicated to the first terminal, so that the first terminal can utilize the first resource set for resource exclusion and/or resource selection. That is, in this embodiment of the present application, the first terminal may trigger inter-terminal cooperation at an appropriate time, and perform resource exclusion and/or resource selection based on the resource set fed back by the second terminal, thereby improving the existence of hidden stations, half-duplex, etc. Sideline transfer performance in the scenario in question.
- the first condition may be determined based on CBR/CR measurement, based on the RSRP threshold used by the first terminal, or based on the number of resources in the candidate resource set, or the like.
- the first condition includes but is not limited to at least one of the following:
- the CBR measured by the first terminal is greater than the first threshold, or the CBR measured by the first terminal is less than the first threshold;
- the CR measured by the first terminal is greater than the second threshold, or the CR measured by the first terminal is less than the second threshold;
- the CR measured by the first terminal for at least one priority is greater than the third threshold, or the CR measured by the first terminal for at least one priority is less than the third threshold;
- the sum of the CRs measured by the first terminal for multiple priorities is greater than the fourth threshold, or the sum of the CRs measured by the first terminal for multiple priorities is smaller than the fourth threshold;
- the number of resources in the candidate resource set is greater than the fifth threshold
- the number of resources in the candidate resource set is the same as the initial number in the candidate resource set.
- the ratio of the number of resources is greater than the sixth threshold
- All SL-RSRP thresholds used by the first terminal are greater than the seventh threshold, or some SL-RSRP thresholds used by the first terminal are greater than the seventh threshold;
- the number of retransmissions of the data to be transmitted by the first terminal is greater than the eighth threshold, or the number of retransmissions of the data to be transmitted by the first terminal is less than the eighth threshold;
- the first terminal determines that the number of conflicts is greater than the ninth threshold, and the conflict includes at least one of a conflict between uplink transmission and sideline transmission, a conflict between sideline transmission and sideline transmission, and a conflict between sideline transmission and sideline reception;
- the first terminal is in the target time unit
- the first terminal triggers resource selection or reselection
- the first terminal triggers the re-evaluation process for the selected resource
- the first terminal triggers a process of judging whether the selected resource is preempted by other terminals
- the threshold for triggering the first terminal to repeatedly perform candidate resource exclusion based on unlistened time slots and/or candidate resource exclusion based on SCIs heard within the listening window is greater than or equal to the tenth threshold.
- Step 1 “to exclude candidate resources based on the time slot that is not listened to and/or to exclude candidate resources based on the SCI heard in the listening window” may specifically be the above Step 1.
- the "rejection of candidate resources based on unlistened time slots” may be the above Step 1-1.
- “Excluding candidate resources based on the SCIs detected in the listening window” may be the above Step 1-2.
- the first terminal in the first condition, "after the first terminal has performed the candidate resource exclusion based on the unlistened time slot and/or the candidate resource exclusion based on the SCI heard in the listening window", It may be "after the first terminal executes the above Step 1".
- the "initial number of resources in the candidate resource set” may be "M total " in the above Step 1.
- the at least one priority is pre-configured or agreed upon by a protocol
- the at least one priority is configured or indicated by the network device; or,
- the at least one priority is determined based on the terminal implementation.
- the at least one priority is all priorities greater than the target priority, or the at least one priority is all the priorities lower than the target priority.
- the multiple priorities are pre-configured or agreed upon by the protocol; or,
- the plurality of priorities are configured or indicated by the network device; or,
- the multiple priorities are determined based on the terminal implementation.
- the multiple priorities are all priorities greater than the target priority, or the multiple priorities are all the priorities smaller than the target priority.
- the target priority is a priority that depends on terminal implementation; or, the target priority is pre-configured or agreed in a protocol; or, the target priority is configured or indicated by the network device.
- the configuration of the resource pool used by the first terminal includes an SL-RSRP threshold table, as shown in Table 1 above.
- 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-configured.
- the first terminal determines the corresponding SL-RSRP threshold according to the priority P1 carried in the sensed PSCCH and the priority P2 of the data to be sent. (See the relevant descriptions of Step 1 to Step 2 above)
- all SL-RSRP thresholds used by the first terminal include:
- the first terminal performs the process according to the All SL-RSRP thresholds determined by the priority carried by the SCI and the priority of the data to be sent; or,
- all SL-RSRP thresholds used by the first terminal may include: all SL-RSRP thresholds determined by the first terminal according to the priority carried by the SCI and the priority of the data to be sent during the execution of the above Step 1 by the first terminal.
- RSRP threshold Considering that the first terminal may raise the SL-RSRP threshold multiple times and repeatedly perform the above Step 1, all the SL-RSRP thresholds used by the first terminal may include: the first terminal performs the above Step 1 process for the first time or the last time All SL-RSRP thresholds are determined according to the priority carried by the sensed SCI and the priority of the data to be sent.
- all SL-RSRP thresholds used by the first terminal may include: all SL-RSRP thresholds determined by the first terminal according to the priority of the data to be sent by the first terminal, such as a row in Table 1 above. Considering that the first terminal may raise the SL-RSRP threshold multiple times, all the SL-RSRP thresholds used by the first terminal may include: the SL-RSRP threshold is not raised or after the SL-RSRP threshold is raised for the last time, the first terminal All SL-RSRP thresholds determined according to the priority of the data to be sent by itself. Or all SL-RSRP thresholds used by the first terminal may include: SL-RSRP thresholds determined by the first terminal according to the priority of the data to be sent by the first terminal and all possible priorities.
- the partial SL-RSRP threshold used by the first terminal includes:
- the first terminal performs the process according to the sensed sideline control information.
- the first terminal performs the process according to the sensed sideline control information.
- the carried priority less than the priority threshold and the SL-RSRP threshold determined by the priority of the data to be sent; or,
- the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority greater than the priority threshold
- the first terminal determines the SL-RSRP threshold according to the priority of the data to be sent and the priority less than the priority threshold.
- the priority threshold value is pre-configured or agreed in a protocol; or, the priority threshold value is configured or indicated by a network device; or, the priority threshold value is determined based on terminal implementation.
- the partial SL-RSRP threshold used by the first terminal may include: a priority carried by the first terminal according to the detected SCI in the process of performing the above Step 1 that is greater than or less than the priority threshold, and a pending SL-RSRP threshold determined by the priority of sending data.
- the partial SL-RSRP threshold used by the first terminal may include: the first terminal performs the above Step 1 process for the first time or the last time All the SL-RSRP thresholds are determined according to the priority carried by the sensed SCI which is greater than or less than the priority threshold, and the priority of the data to be sent.
- the partial SL-RSRP threshold used by the first terminal may include: the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent by the first terminal and the priority greater than or less than the priority threshold.
- the partial SL-RSRP threshold used by the first terminal may include: the SL-RSRP threshold is not raised or after the SL-RSRP threshold is raised for the last time, the first terminal The SL-RSRP threshold determined according to the priority of the data to be sent by itself and the priority greater than or less than the priority threshold.
- the target time unit includes but is not limited to at least one of the following:
- the time unit for triggering resource selection or resource reselection by the first terminal for example, the time unit for triggering resource selection or resource reselection by the first terminal is the time slot n in FIG. 5;
- time slot n The difference between the time unit when the first terminal triggers resource selection or resource reselection and N1 time units, where N1 is a positive integer, for example, the time unit when the first terminal triggers resource selection or resource reselection is the time unit in FIG. 5 above. time slot n;
- the time unit in which the first terminal triggers the re-evaluation of the selected resource for example, the time unit in which the first terminal triggers the re-evaluation of the selected resource is the time slot mT 3 in the above-mentioned FIG. 6 ;
- the difference between the time unit at which the first terminal triggers re-evaluation of the selected resource and N2 time units, where N2 is a positive integer, for example, the time unit at which the first terminal triggers the re-evaluation of the selected resource is the above-mentioned FIG. 6 time slot mT 3 in ;
- the time unit in which the first terminal triggers the judgment on whether the selected resource is preempted by other terminals is the time slot mT in the above-mentioned FIG. 7 3 ;
- the determined time unit is the time slot mT 3 in the above-mentioned FIG. 7 .
- N1 is pre-configured or agreed in a protocol
- N1 is configured or indicated by the network device; or,
- N1 is determined based on the terminal implementation.
- N2 is pre-configured or agreed in a protocol
- N2 is configured or indicated by the network device; or,
- N2 is determined based on the terminal implementation.
- N3 is pre-configured or agreed in a protocol
- N3 is configured or indicated by the network device.
- N3 is determined based on the terminal implementation.
- some or all of the thresholds from the first threshold to the tenth threshold are pre-configured or agreed in the protocol; or, some or all of the thresholds from the first threshold to the tenth threshold are configured by the network device. or indicated; or, some or all of the thresholds from the first threshold to the tenth threshold are determined based on the implementation of the terminal.
- the first information includes at least a first SL-RSRP threshold group or a first SL-RSRP threshold. That is, the first information includes at least one or a group of SL-RSRP thresholds.
- the first SL-RSRP threshold is the maximum value in the first SL-RSRP threshold group; or,
- the first SL-RSRP threshold is the minimum value in the first SL-RSRP threshold group; or,
- the first SL-RSRP threshold is an average value in the first SL-RSRP threshold group.
- the first SL-RSRP threshold group includes one of the following:
- the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority greater than the priority threshold
- the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority less than the priority threshold
- Each SL-RSRP threshold in the second set of SL-RSRP thresholds increases or decreases a set of SL-RSRP thresholds by an offset of L decibels (dB).
- the first SL-RSRP threshold group includes: all SL-RSRP thresholds determined by the first terminal according to the priorities of the data to be sent, such as a certain row in Table 1 above. Considering that the first terminal may raise the SL-RSRP threshold multiple times, the first SL-RSRP threshold group includes: after the SL-RSRP threshold is not raised or the SL-RSRP threshold is raised for the last time, the first terminal according to its own data to be sent The priority is determined by all SL-RSRP thresholds. In other words, the first SL-RSRP threshold group includes: SL-RSRP thresholds determined by the first terminal according to the priority of the data to be sent by the first terminal and all possible priorities.
- the first SL-RSRP threshold group includes: the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent by the first terminal and the priority greater than or less than the priority threshold value.
- the first terminal may raise the SL-RSRP threshold multiple times
- the first SL-RSRP threshold group includes: after the SL-RSRP threshold is not raised or the SL-RSRP threshold is raised for the last time, the first terminal according to its own data to be sent The SL-RSRP threshold determined by the priority and the priority greater or less than the priority threshold value.
- the priority threshold value is pre-configured or agreed in a protocol
- the priority threshold is configured or indicated by the network device; or,
- the priority threshold value is determined based on the terminal implementation.
- the second SL-RSRP threshold group includes one of the following:
- the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority greater than the priority threshold
- the first terminal determines the SL-RSRP threshold according to the priority of the data to be sent and the priority less than the priority threshold.
- L is pre-configured or agreed in a protocol
- L is configured or indicated by the network device.
- L is determined based on the terminal implementation.
- the second terminal may construct a first resource set according to the first information. For example, the second terminal performs Step 1 to determine the candidate resource set according to the first RSRP threshold group or the first RSRP threshold in the first information, and the candidate resource set is the first resource set. Further, the second terminal sends the first resource set to the first terminal.
- the first terminal uses the first resource set to perform resource exclusion and/or resource selection. For example, the first terminal excludes resources that belong to/do not belong to the first resource set from the candidate resource set that has completed the above Step 1. Or the first terminal selects resources to send data from the intersection of the candidate resource set that has completed the above Step 1 and the first resource set. Or if the selected resource is not in the first resource set, the first terminal triggers resource reselection for the selected resource.
- the second terminal after receiving the first information, increases or decreases ⁇ dB for the first RSRP threshold group or the first RSRP threshold, and then uses the increased or decreased RSRP threshold group.
- the RSRP threshold determines the first resource set. For example, first increase or decrease ⁇ dB, and use the threshold group or threshold to perform the above Step 1 to determine the candidate resource set.
- conditions for triggering inter-terminal cooperation are provided, so that inter-terminal cooperation can be triggered at an appropriate time, and the sideline transmission performance in scenarios with hidden station, half-duplex and other problems can be improved.
- FIG. 11 shows a schematic block diagram of a terminal device 300 according to an embodiment of the present application.
- the terminal device 300 is a first terminal, and the terminal device 300 includes:
- the communication unit 310 is configured to send first information to the second terminal when the first condition is satisfied, where the first information is used to trigger cooperation between terminals.
- the first condition includes at least one of the following:
- the channel busy rate CBR measured by the first terminal is greater than the first threshold, or the CBR measured by the first terminal is less than the first threshold;
- the channel occupancy rate CR measured by the first terminal is greater than the second threshold, or the CR measured by the first terminal is less than the second threshold;
- the CR measured by the first terminal for at least one priority is greater than the third threshold, or the CR measured by the first terminal for at least one priority is less than the third threshold;
- the sum of the CRs measured by the first terminal for multiple priorities is greater than the fourth threshold, or the sum of the CRs measured by the first terminal for multiple priorities is smaller than the fourth threshold;
- the number of resources in the candidate resource set is greater than the fifth threshold
- the number of resources in the candidate resource set is the same as the initial number in the candidate resource set.
- the ratio of the number of resources is greater than the sixth threshold
- the SL-RSRP threshold of all sideline reference signal received powers used by the first terminal is greater than the seventh threshold, or the partial SL-RSRP threshold used by the first terminal is greater than the seventh threshold;
- the number of retransmissions of the data to be transmitted by the first terminal is greater than the eighth threshold, or the number of retransmissions of the data to be transmitted by the first terminal is less than the eighth threshold;
- the first terminal determines that the number of conflicts is greater than the ninth threshold, and the conflict includes at least one of a conflict between uplink transmission and sideline transmission, a conflict between sideline transmission and sideline transmission, and a conflict between sideline transmission and sideline reception;
- the first terminal is in the target time unit
- the first terminal triggers resource selection or reselection
- the first terminal triggers the re-evaluation process for the selected resource
- the first terminal triggers a process of judging whether the selected resource is preempted by other terminals
- the threshold for triggering the first terminal to repeatedly perform candidate resource exclusion based on unlistened time slots and/or candidate resource exclusion based on SCIs heard within the listening window is greater than or equal to the tenth threshold.
- the at least one priority is pre-configured or agreed in a protocol
- the at least one priority is configured or indicated by the network device; or,
- the at least one priority is determined based on the terminal implementation.
- the multiple priorities are pre-configured or agreed in an agreement; or,
- the plurality of priorities are configured or indicated by the network device; or,
- the multiple priorities are determined based on the terminal implementation.
- the multiple priorities are all priorities greater than the target priority, or the multiple priorities are all the priorities smaller than the target priority.
- the target priority is a priority that depends on terminal implementation.
- the target priority is preconfigured or agreed upon by the protocol; or,
- the target priority is configured or indicated by the network device.
- all SL-RSRP thresholds used by the first terminal include:
- the first terminal performs the process according to the All SL-RSRP thresholds determined by the priority carried by the SCI and the priority of the data to be sent; or,
- the partial SL-RSRP threshold used by the first terminal includes:
- the first terminal performs the process according to the sensed sideline control information.
- the first terminal performs the process according to the sensed sideline control information.
- the carried priority less than the priority threshold and the SL-RSRP threshold determined by the priority of the data to be sent; or,
- the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority greater than the priority threshold
- the first terminal determines the SL-RSRP threshold according to the priority of the data to be sent and the priority less than the priority threshold.
- the target time unit includes at least one of the following:
- the first terminal triggers a time unit for re-evaluating the selected resource
- the first terminal triggers the difference between the time unit for re-evaluating the selected resource and N2 time units, where N2 is a positive integer;
- the first terminal triggers a time unit for judging whether the selected resource is preempted by other terminals
- N1 is pre-configured or agreed in a protocol
- N1 is configured or indicated by the network device; or,
- N1 is determined based on the terminal implementation.
- N2 is pre-configured or agreed in a protocol
- N2 is configured or indicated by the network device; or,
- N2 is determined based on the terminal implementation.
- N3 is pre-configured or agreed in a protocol
- N3 is configured or indicated by the network device.
- N3 is determined based on the terminal implementation.
- the first information includes at least a first SL-RSRP threshold group or a first SL-RSRP threshold.
- the first SL-RSRP threshold is the maximum value in the first SL-RSRP threshold group; or,
- the first SL-RSRP threshold is the minimum value in the first SL-RSRP threshold group; or,
- the first SL-RSRP threshold is an average value in the first SL-RSRP threshold group.
- the first SL-RSRP threshold group includes one of the following:
- the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority greater than the priority threshold
- the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority less than the priority threshold
- Each SL-RSRP threshold in the second set of SL-RSRP thresholds increases or decreases a set of SL-RSRP thresholds by an offset of L decibels.
- the priority threshold value is pre-configured or agreed in a protocol
- the priority threshold is configured or indicated by the network device; or,
- the priority threshold value is determined based on the terminal implementation.
- the second SL-RSRP threshold group includes one of the following:
- the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority greater than the priority threshold
- the first terminal determines the SL-RSRP threshold according to the priority of the data to be sent and the priority less than the priority threshold.
- L is pre-configured or agreed in a protocol
- L is configured or indicated by the network device.
- L is determined based on the terminal implementation.
- the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
- the terminal device 300 may correspond to the first terminal in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of the various units in the terminal device 300 are to achieve the one shown in FIG. 10 , respectively.
- the corresponding process of the first terminal in the method 200 is not repeated here for brevity.
- FIG. 12 is a schematic structural diagram of a communication device 400 provided by an embodiment of the present application.
- the communication device 400 shown in FIG. 12 includes a processor 410, and the processor 410 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
- the communication device 400 may further include a memory 420 .
- the processor 410 may call and run a computer program from the memory 420 to implement the methods in the embodiments of the present application.
- the memory 420 may be a separate device independent of the processor 410 , or may be integrated in the processor 410 .
- the communication device 400 may further include a transceiver 430, and the processor 410 may control the transceiver 430 to communicate with other devices, specifically, may send information or data to other devices, or receive other Information or data sent by a device.
- the transceiver 430 may include a transmitter and a receiver.
- the transceiver 430 may further include antennas, and the number of the antennas may be one or more.
- the communication device 400 may specifically be the terminal device of this embodiment of the present application, and the communication device 400 may implement the corresponding process implemented by the first terminal in each method of the embodiment of the present application, which is not repeated here for brevity. Repeat.
- FIG. 13 is a schematic structural diagram of an apparatus according to an embodiment of the present application.
- the apparatus 500 shown in FIG. 13 includes a processor 510, and the processor 510 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
- the apparatus 500 may further include a memory 520 .
- the processor 510 may call and run a computer program from the memory 520 to implement the methods in the embodiments of the present application.
- the memory 520 may be a separate device independent of the processor 510 , or may be integrated in the processor 510 .
- the apparatus 500 may further include an input interface 530 .
- the processor 510 may control the input interface 530 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.
- the apparatus 500 may further include an output interface 540 .
- the processor 510 may control the output interface 540 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.
- the apparatus may be applied to the terminal equipment in the embodiments of the present application, and the apparatus may implement the corresponding processes implemented by the first terminal in each method of the embodiments of the present application, which will not be repeated here for brevity.
- the device mentioned in the embodiment of the present application may also be a chip.
- it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.
- FIG. 14 is a schematic block diagram of a communication system 600 provided by an embodiment of the present application. As shown in FIG. 14 , the communication system 600 includes a first terminal 610 and a second terminal 620 .
- the first terminal 610 may be used to implement the corresponding functions implemented by the first terminal in the foregoing method, and for brevity, details are not described herein again.
- the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
- each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
- the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
- DSP Digital Signal Processor
- ASIC Application Specific Integrated Circuit
- FPGA Field Programmable Gate Array
- a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
- the steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
- the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
- the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
- the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
- Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
- RAM Static RAM
- DRAM Dynamic RAM
- SDRAM Synchronous DRAM
- SDRAM double data rate synchronous dynamic random access memory
- Double Data Rate SDRAM DDR SDRAM
- enhanced SDRAM ESDRAM
- synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
- Direct Rambus RAM Direct Rambus RAM
- the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
- Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.
- the computer-readable storage medium can be applied to the terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the first terminal in each method of the embodiments of the present application. This will not be repeated here.
- Embodiments of the present application also provide a computer program product, including computer program instructions.
- the computer program product can be applied to the terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the first terminal in each method of the embodiments of the present application.
- the computer program instructions cause the computer to execute the corresponding processes implemented by the first terminal in each method of the embodiments of the present application.
- the embodiments of the present application also provide a computer program.
- the computer program can be applied to the terminal device in the embodiment of the present application, and when the computer program is run on the computer, the computer executes the corresponding process implemented by the first terminal in each method of the embodiment of the present application, in order to It is concise and will not be repeated here.
- the disclosed system, apparatus and method may be implemented in other manners.
- the apparatus embodiments described above are only illustrative.
- the division of the units is only a logical function division. In actual implementation, there may be other division methods.
- multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
- the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
- the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
- the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
- the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
- the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .
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Abstract
Provided are a wireless communication method and a terminal device. Conditions for triggering cooperation between terminals are provided, such that the cooperation between the terminals can be triggered at an appropriate time, and sidelink transmission performance in a scenario in which there are problems such as hidden stations and half-duplex is improved. The wireless communication method comprises: when a first condition is met, a first terminal sending first information to a second terminal, wherein the first information is used for triggering cooperation between the terminals.
Description
本申请实施例涉及通信领域,并且更具体地,涉及一种无线通信的方法和终端设备。The embodiments of the present application relate to the field of communication, and more particularly, to a method and terminal device for wireless communication.
在一些侧行传输场景下,如存在隐蔽站、半双工等问题的场景,可以通过终端间协作来提升侧行传输性能。然而,具体如何触发终端间协作,是一个亟待解决的问题。In some sideline transmission scenarios, such as scenarios with hidden station, half-duplex and other problems, the sideline transmission performance can be improved through cooperation between terminals. However, how to trigger the inter-terminal cooperation is an urgent problem to be solved.
发明内容SUMMARY OF THE INVENTION
本申请实施例提供了一种无线通信的方法和终端设备,提供了触发终端间协作的条件,从而可以在合适时机触发终端间协作,提升存在隐蔽站、半双工等问题的场景下的侧行传输性能。The embodiments of the present application provide a wireless communication method and terminal device, and provide conditions for triggering cooperation between terminals, so that the cooperation between terminals can be triggered at an appropriate time, and the side effect in scenarios with hidden station, half-duplex and other problems can be improved. line transfer performance.
第一方面,提供了一种无线通信的方法,该方法包括:In a first aspect, a method for wireless communication is provided, the method comprising:
在满足第一条件的情况下,第一终端向第二终端发送第一信息,其中,该第一信息用于触发终端间协作。When the first condition is satisfied, the first terminal sends first information to the second terminal, where the first information is used to trigger inter-terminal cooperation.
第二方面,提供了一种终端设备,用于执行上述第一方面中的方法。In a second aspect, a terminal device is provided for executing the method in the above-mentioned first aspect.
具体地,该终端设备包括用于执行上述第一方面中的方法的功能模块。Specifically, the terminal device includes functional modules for executing the method in the first aspect.
第三方面,提供了一种终端设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第一方面中的方法。In a third aspect, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect.
第四方面,提供了一种装置,用于实现上述第一方面中的方法。In a fourth aspect, an apparatus is provided for implementing the method in the above-mentioned first aspect.
具体地,该装置包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有该装置的设备执行如上述第一方面中的方法。Specifically, the apparatus includes: a processor for invoking and running a computer program from a memory, so that a device in which the apparatus is installed executes the method in the above-mentioned first aspect.
第五方面,提供了一种计算机可读存储介质,用于存储计算机程序,该计算机程序使得计算机执行上述第一方面中的方法。In a fifth aspect, a computer-readable storage medium is provided for storing a computer program, and the computer program causes a computer to execute the method in the above-mentioned first aspect.
第六方面,提供了一种计算机程序产品,包括计算机程序指令,所述计算机程序指令使得计算机执行上述第一方面中的方法。In a sixth aspect, a computer program product is provided, comprising computer program instructions, the computer program instructions causing a computer to perform the method of the first aspect above.
第七方面,提供了一种计算机程序,当其在计算机上运行时,使得计算机执行上述第一方面中的方法。In a seventh aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of the above-mentioned first aspect.
通过上述技术方案,提供了触发终端间协作的条件,从而可以在合适时机触发终端间协作,提升存在隐蔽站、半双工等问题的场景下的侧行传输性能。The above technical solutions provide conditions for triggering inter-terminal collaboration, so that inter-terminal collaboration can be triggered at an appropriate time, improving sideline transmission performance in scenarios with hidden station, half-duplex and other problems.
图1是本申请提供的一种通信系统架构的示意性图。FIG. 1 is a schematic diagram of a communication system architecture provided by the present application.
图2是本申请提供的另一种通信系统架构的示意性图。FIG. 2 is a schematic diagram of another communication system architecture provided by the present application.
图3是本申请提供的NR-V2X的物理层结构的示意性图。FIG. 3 is a schematic diagram of the physical layer structure of NR-V2X provided by the present application.
图4是本申请提供的NR-V2X的资源预留的示意性图。FIG. 4 is a schematic diagram of resource reservation of NR-V2X provided by the present application.
图5是本申请提供的NR-V2X的资源选择或资源重选的示意性图。FIG. 5 is a schematic diagram of resource selection or resource reselection of NR-V2X provided by the present application.
图6是本申请提供的NR-V2X的资源再评估的示意性图。FIG. 6 is a schematic diagram of resource re-evaluation of NR-V2X provided by the present application.
图7是本申请提供的NR-V2X的资源抢占的示意性图。FIG. 7 is a schematic diagram of resource preemption of NR-V2X provided by the present application.
图8是本申请提供的隐蔽站的示意性图。FIG. 8 is a schematic diagram of a concealed station provided by the present application.
图9是本申请提供的测量CBR/CR的示意性图。FIG. 9 is a schematic diagram of measuring CBR/CR provided by the present application.
图10是根据本申请实施例提供的一种无线通信的方法的示意性流程图。FIG. 10 is a schematic flowchart of a method for wireless communication according to an embodiment of the present application.
图11是根据本申请实施例提供的一种终端设备的示意性框图。FIG. 11 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
图12是根据本申请实施例提供的一种通信设备的示意性框图。FIG. 12 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
图13是根据本申请实施例提供的一种装置的示意性框图。Fig. 13 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.
图14是根据本申请实施例提供的一种通信系统的示意性框图。Fig. 14 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。针对本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. With regard to the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
本申请实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多 址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、先进的长期演进(Advanced long term evolution,LTE-A)系统、新空口(New Radio,NR)系统、NR系统的演进系统、非授权频谱上的LTE(LTE-based access to unlicensed spectrum,LTE-U)系统、非授权频谱上的NR(NR-based access to unlicensed spectrum,NR-U)系统、非地面通信网络(Non-Terrestrial Networks,NTN)系统、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、无线局域网(Wireless Local Area Networks,WLAN)、无线保真(Wireless Fidelity,WiFi)、第五代通信(5th-Generation,5G)系统或其他通信系统等。The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a wideband Code Division Multiple Access (CDMA) system (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, Advanced Long Term Evolution (Advanced long term evolution, LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) unlicensed spectrum, NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.
通常来说,传统的通信系统支持的连接数有限,也易于实现,然而,随着通信技术的发展,移动通信系统将不仅支持传统的通信,还将支持例如,设备到设备(Device to Device,D2D)通信,机器到机器(Machine to Machine,M2M)通信,机器类型通信(Machine Type Communication,MTC),车辆间(Vehicle to Vehicle,V2V)通信,或车联网(Vehicle to everything,V2X)通信等,本申请实施例也可以应用于这些通信系统。Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (Device to Device, D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. , the embodiments of the present application can also be applied to these communication systems.
可选地,本申请实施例中的通信系统可以应用于载波聚合(Carrier Aggregation,CA)场景,也可以应用于双连接(Dual Connectivity,DC)场景,还可以应用于独立(Standalone,SA)布网场景。Optionally, the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.
可选地,本申请实施例中的通信系统可以应用于非授权频谱,其中,非授权频谱也可以认为是共享频谱;或者,本申请实施例中的通信系统也可以应用于授权频谱,其中,授权频谱也可以认为是非共享频谱。Optionally, the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered unshared spectrum.
本申请实施例结合网络设备和终端设备描述了各个实施例,其中,终端设备也可以称为用户设备(User Equipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。The embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
终端设备可以是WLAN中的站点(STATION,ST),可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、下一代通信系统例如NR网络中的终端设备,或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)网络中的终端设备等。The terminal device may be a station (STATION, ST) in the WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a Wireless Local Loop (WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
在本申请实施例中,终端设备可以部署在陆地上,包括室内或室外、手持、穿戴或车载;也可以部署在水面上(如轮船等);还可以部署在空中(例如飞机、气球和卫星上等)。In this embodiment of the present application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).
在本申请实施例中,终端设备可以是手机(Mobile Phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality,VR)终端设备、增强现实(Augmented Reality,AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或智慧家庭(smart home)中的无线终端设备等。In this embodiment of the present application, the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
作为示例而非限定,在本申请实施例中,该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上,或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备,更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能,例如:智能手表或智能眼镜等,以及只专注于某一类应用功能,需要和其它设备如智能手机配合使用,如各类进行体征监测的智能手环、智能首饰等。As an example and not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring.
在本申请实施例中,网络设备可以是用于与移动设备通信的设备,网络设备可以是WLAN中的接入点(Access Point,AP),GSM或CDMA中的基站(Base Transceiver Station,BTS),也可以是WCDMA中的基站(NodeB,NB),还可以是LTE中的演进型基站(Evolutional Node B,eNB或eNodeB),或者中继站或接入点,或者车载设备、可穿戴设备以及NR网络中的网络设备或者基站(gNB)或者未来演进的PLMN网络中的网络设备或者NTN网络中的网络设备等。In this embodiment of the present application, the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks The network equipment or base station (gNB) in the PLMN network or the network equipment in the future evolved PLMN network or the network equipment in the NTN network, etc.
作为示例而非限定,在本申请实施例中,网络设备可以具有移动特性,例如网络设备可以为移动的设备。可选地,网络设备可以为卫星、气球站。例如,卫星可以为低地球轨道(low earth orbit,LEO)卫星、中地球轨道(medium earth orbit,MEO)卫星、地球同步轨道(geostationary earth orbit,GEO)卫星、高椭圆轨道(High Elliptical Orbit,HEO)卫星等。可选地,网络设备还可以为设置在陆地、水域等位置的基站。As an example and not a limitation, in this embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc. Optionally, the network device may also be a base station set in a location such as land or water.
在本申请实施例中,网络设备可以为小区提供服务,终端设备通过该小区使用的传输资源(例如, 频域资源,或者说,频谱资源)与网络设备进行通信,该小区可以是网络设备(例如基站)对应的小区,小区可以属于宏基站,也可以属于小小区(Small cell)对应的基站,这里的小小区可以包括:城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等,这些小小区具有覆盖范围小、发射功率低的特点,适用于提供高速率的数据传输服务。In this embodiment of the present application, a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, the cell corresponding to the base station), the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell). Pico cell), Femto cell (Femto cell), etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
应理解,本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”,仅仅是一种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。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释,而非旨在限定本申请。本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象,而不是用于描述特定顺序。此外,术语“包括”和“具有”以及它们任何变形,意图在于覆盖不排他的包含。The terms used in the embodiments of the present application are only used to explain specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third" and "fourth" in the description and claims of the present application and the drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.
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。It should be understood that the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship. For example, if A indicates B, it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
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。In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.
本申请实施例中,“预定义”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做限定。比如预定义可以是指协议中定义的。In this embodiment of the present application, "predefinition" may be implemented by pre-saving corresponding codes, forms, or other means that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). The implementation method is not limited. For example, predefined may refer to the definition in the protocol.
本申请实施例中,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,本申请对此不做限定。In the embodiments of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, may include the LTE protocol, the NR protocol, and related protocols applied in future communication systems, which are not limited in this application.
图1是本申请实施例适用的一种通信系统的示意图。车载终端(车载终端121和车载终端122)的传输资源是由基站110分配的,车载终端根据基站110分配的资源在侧行链路上进行数据的发送。具体地,基站110可以为终端分配单次传输的资源,也可以为终端分配半静态传输的资源。FIG. 1 is a schematic diagram of a communication system to which an embodiment of the present application is applied. The transmission resources of the vehicle-mounted terminals (the vehicle-mounted terminal 121 and the vehicle-mounted terminal 122 ) are allocated by the base station 110 , and the vehicle-mounted terminal transmits data on the sidelink according to the resources allocated by the base station 110 . Specifically, the base station 110 may allocate resources for single transmission to the terminal, or may allocate resources for semi-static transmission to the terminal.
图2是本申请实施例适用的另一种通信系统的示意图。车载终端(车载终端131和车载终端132)在侧行链路的资源上自主选取传输资源进行数据传输。可选地,车载终端可以随机选取传输资源,或者通过侦听的方式选取传输资源。FIG. 2 is a schematic diagram of another communication system to which the embodiments of the present application are applicable. The vehicle-mounted terminals (the vehicle-mounted terminal 131 and the vehicle-mounted terminal 132 ) independently select transmission resources for data transmission on the resources of the side link. Optionally, the in-vehicle terminal may randomly select transmission resources, or select transmission resources by means of listening.
为便于更好的理解本申请实施例,对本申请相关的NR-V2X物理层结构进行说明。For better understanding of the embodiments of the present application, the NR-V2X physical layer structure related to the present application is described.
在NR-V2X中,需要支持自动驾驶,因此对车辆之间数据交互提出了更高的要求,如更高的吞吐量、更低的时延、更高的可靠性、更大的覆盖范围、更灵活的资源分配等。In NR-V2X, autonomous driving needs to be supported, so higher requirements are put forward for data interaction between vehicles, such as higher throughput, lower latency, higher reliability, larger coverage, More flexible resource allocation, etc.
NR-V2X的物理层结构如图3所示,其中物理侧行控制信道(Physical Sidelink Control Channel,PSCCH)用于传输第一侧行控制信息(Sidelink Control Information,SCI),物理侧行共享信道(Physical Sidelink Shared Channel,PSSCH)用于承载数据和第二SCI,PSCCH和PSSCH在同一时隙中发送。The physical layer structure of NR-V2X is shown in Figure 3, in which the Physical Sidelink Control Channel (PSCCH) is used to transmit the first sidelink control information (Sidelink Control Information, SCI), and the physical sidelink shared channel ( Physical Sidelink Shared Channel, PSSCH) is used to carry data and the second SCI, PSCCH and PSSCH are sent in the same time slot.
为便于更好的理解本申请实施例,对本申请相关的NR-V2X中的资源预留进行说明。To facilitate a better understanding of the embodiments of the present application, the resource reservation in NR-V2X related to the present application is described.
在NR-V2X中,上述图2所示的通信系统中,终端自行选择资源发送数据。资源预留则是资源选择的前提。In NR-V2X, in the above-mentioned communication system shown in FIG. 2 , the terminal selects resources by itself to send data. Resource reservation is the premise of resource selection.
资源预留是指终端在PSCCH中发送第一SCI预留接下来要使用的资源。在NR-V2X中,支持传输块(Transport block,TB)内的资源预留也支持TB间的资源预留,如图4所示。Resource reservation means that the terminal sends the first SCI in the PSCCH to reserve resources to be used next. In NR-V2X, resource reservation within a transport block (TB) is supported as well as resource reservation between TBs, as shown in Figure 4.
终端发送第一SCI,利用其中“时域资源分配(Time resource assignment)”和“频域资源分配(Frequency resource assignment)”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4所示的TB 1中,终端在PSSCH发送初传数据的同时在PSCCH中发送第一SCI,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4所示的TB 1中,终端利用重传1的PSCCH中发送的第一SCI指示重传1和重传2的时频资源,重传1与重传2在时域上分布在32个时隙内。The terminal sends the first SCI, and uses the "time domain resource assignment (Time resource assignment)" and "frequency domain resource assignment (Frequency resource assignment)" fields to indicate the N time-frequency resources of the current TB (including the resources used for current transmission). where N≤Nmax, in NR-V2X, Nmax is equal to 2 or 3. Meanwhile, the above N indicated time-frequency resources should be distributed in W time slots. In NR-V2X, W is equal to 32. For example, in TB 1 shown in FIG. 4 , the terminal sends the first SCI in PSCCH while sending initial transmission data on PSSCH, and uses the above two fields to indicate the time-frequency resource positions of initial transmission and retransmission 1 (that is, at this time N =2), that is, the time-frequency resources for retransmission 1 are reserved. And, the initial transmission and retransmission 1 are distributed in 32 time slots in the time domain. Similarly, in TB 1 shown in FIG. 4 , the terminal uses the first SCI sent in the PSCCH of retransmission 1 to indicate the time-frequency resources of retransmission 1 and retransmission 2, and retransmission 1 and retransmission 2 are in the time domain. distributed over 32 time slots.
同时,终端发送第一SCI时利用“资源预留周期(Resource reservation period)”域进行TB间的资源预留。例如图4中,终端在发送TB 1的初传的第一SCI时,利用“Time resource assignment”和“Frequency resource assignment”域指示TB 1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TB 1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SCI中,“Resource reservation period”域的取值为100毫秒,则该第一SCI同时指示了时频资源 {(t
1+100,f
1),(t
2+100,f
2)},这两个资源用于TB 2初传和重传1的传输。同理,在TB 1重传1中发送的第一SCI,也利用“Resource reservation period”域预留了TB 2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 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。
Meanwhile, when the terminal sends the first SCI, the "resource reservation period (Resource reservation period)" field is used to reserve resources between TBs. For example, in FIG. 4 , when the terminal sends the first SCI of the initial transmission of TB 1, it 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 TB 1, which are marked as { (t 1 , f 1 ), (t 2 , f 2 )}. Among them, t 1 and t 2 represent the time domain positions of the TB 1 initial transmission and retransmission 1 resources, and f 1 and f 2 represent the corresponding frequency domain positions. If in the first SCI, the value of the "Resource reservation period" field is 100 milliseconds, then the first SCI also indicates time-frequency resources {(t 1 +100, f 1 ), (t 2 +100, f 2 )}, these two resources are used for the transmission of TB 2 initial transmission and retransmission 1. Similarly, the first SCI sent in retransmission 1 of TB 1 also reserves the time-frequency resources of retransmission 1 and retransmission 2 of TB 2 by using the "Resource reservation period" field. In NR V2X, the possible values of the "Resource reservation period" field are 0, 1-99, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000 milliseconds, which is more flexible than LTE V2X . However, in each resource pool, only e values are configured, and the terminal determines the possible values according to the resource pool used. Note that the value e in the resource pool configuration is the resource reservation period set M, exemplarily, e is less than or equal to 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。当去激活TB间的预留时,第一SCI中不包括“Resource reservation period”域。一般情况下,在触发资源重选之前,终端所用的“Resource reservation period”域的取值,即资源预留周期都不会变,终端每发送一次第一SCI,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。In addition, through network configuration or pre-configuration, the above-mentioned reservation between TBs can be activated or deactivated in units of resource pools. When deactivating the reservation between TBs, the "Resource reservation period" field is not included in the first SCI. In general, before triggering resource reselection, the value of the "Resource reservation period" field used by the terminal, that is, the resource reservation period, will not change. Every time the terminal sends the first SCI, it uses the "Resource reservation period" in it. ” field reserves the resources of the next cycle for the transmission of another TB, so as to achieve periodic semi-persistent transmission.
当UE 1工作在上述图2所示的通信系统,UE 1可以通过侦听其他UE发送的PSCCH,获取其他UE发送的第一SCI,从而得知其他UE所预留的资源。UE 1在进行资源选择时,会排除其他UE预留的资源,从而避免资源碰撞。When UE 1 works in the communication system shown in FIG. 2 above, UE 1 can obtain the first SCI sent by other UEs by listening to PSCCHs sent by other UEs, so as to know the resources reserved by other UEs. When UE 1 selects resources, it will exclude resources reserved by other UEs, thereby avoiding resource collision.
为便于更好的理解本申请实施例,对本申请相关的NR-V2X侦听的资源选择方法进行说明。To facilitate a better understanding of the embodiments of the present application, a resource selection method for NR-V2X interception related to the present application is described.
如图5所示,终端在时隙n触发资源选择或重选,资源选择窗从n+T1开始,到n+T2结束。0<=T1<=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。T2
min<=T2<=业务的剩余时延预算,T2
min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,终端根据自身待发送数据的优先级从该取值集合中确定T2
min。例如当子载波间隔是15kHz时,终端根据自身待发送数据的优先级从集合{1,5,10,20}中确定T2
min。当T2
min大于等于业务的剩余时延预算时,T2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。
As shown in FIG. 5 , the terminal triggers resource selection or reselection at time slot n, and the resource selection window starts from n+T1 and ends at n+T2. 0<=T1<=T proc,1 , when the subcarrier spacing is 15, 30, 60, 120 kHz, T proc,1 is 3, 5, 9, and 17 time slots. T2 min <= T2 <= remaining delay budget of the service, the value set of T2 min is {1, 5, 10, 20}*2 μ time slots, where μ=0, 1, 2, 3 corresponds to the sub-slots When the carrier interval is 15, 30, 60, and 120 kHz, the terminal determines T2 min from the value set according to the priority of the data to be sent by the terminal. For example, when the subcarrier spacing is 15 kHz, the terminal determines T2 min from the set {1, 5, 10, 20} according to the priority of the data to be sent by the terminal. When T2 min is greater than or equal to the remaining delay budget of the service, T2 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 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 ms.
终端在n-T0到n-T
proc,0进行资源侦听,T0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。实际上,终端在每个时隙(除了自己的发送时隙)都会侦听其他终端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,终端使用n-T0到n-T
proc,0资源侦听的结果。
The terminal performs resource monitoring from n-T0 to nT proc,0 , and the value of T0 is 100 or 1100 milliseconds. When the subcarrier spacing is 15, 30, 60, and 120 kHz, T proc,0 is 1, 1, 2, and 4 time slots. In fact, the terminal will listen to the first sideline control information sent by other terminals in each time slot (except its own transmission time slot). After time slot n triggers resource selection or reselection, the terminal uses n-T0 to nT proc ,0 result of resource listening.
步骤(Step)1:Step 1:
终端将资源选择窗内所有属于终端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。
The terminal takes all available resources belonging to the resource pool used by the terminal in the resource selection window as the resource set A, and any resource in the set A is denoted as R(x, y), where x and y indicate the frequency domain position and time domain position of the resource respectively. . Let the initial number of resources in set A be M total .
Step 1-1:如果终端在侦听窗内时隙m发送数据,没有进行侦听,则终端将判断时隙m+q*Prxlg与资源R(x,y+j*Ptxlg)是否重叠,如果重叠,则把资源R(x,y)从资源集合A中排除。其中j=0,1,2,3…C-1,C由终端生成的随机计数(counter)值确定,终端在进行资源选择时,会随机生成counter值(一个正整数)从而确定对将要选择到的资源预留多少个周期。Ptxlg是Ptx转化为逻辑时隙后的数目,Ptx为进行资源选择的终端确定的资源预留周期,为终端所用资源池配置中资源预留周期集合M中取值的一种,也是进行资源选择的终端待完成资源选择后发送数据时其第一SCI中“Resource reservation period”域将指示的值。因此,资源R(x,y+j*Ptxlg)为图5中子图1中斜线阴影标记的一系列资源(图中示例为C=3)。对于时隙m+q*Prxlg,其中q=1,2,3…Q,Prxlg为Prx转化为逻辑时隙后的数目。Prx为终端侦听到的PSCCH中传输的第一SCI中“Resource reservation period”指示的资源预留周期。由于终端在时隙m没有进行侦听,因此此处Prx为终端所用资源池配置中的资源预留周期集合M中的所有可能的取值,即终端会判断M中的每一种取值计算出的时隙m+q*Prxlg与资源R(x,y+j*Ptxlg)是否重叠。对于Q,如果Prx<Tscal并且n-m<=Prxlg,
(代表上取整),否则Q=1。Tscal等于T2转化为毫秒后的值。例如,终端在时隙m没有进行侦听,依次从所用资源池配置中的资源预留周期集合M中选择一个Prx进行资源排除,对于其中某个Prx,如果Prx<Tscal并且n-m<=Prxlg,假定Q值计算为2,则时隙m+q*Prxlg为图5中子图1中时隙m映射的接下来2个横线阴影标识的时隙,否则Q=1,时隙m+q*Prxlg为图5中子图1中点状阴影所标识的时隙。可选的,当终端所用资源池去激活TB间的预留时,终端可以不执行上述Step 1-1。
Step 1-1: If the terminal sends data in the time slot m within the listening window and does not listen, the terminal will judge whether the time slot m+q*Prxlg and the resource R(x,y+j*Ptxlg) overlap, if If they overlap, the resource R(x, y) is excluded from the resource set A. Among them, j=0,1,2,3...C-1,C is determined by the random counter value generated by the terminal. When the terminal selects resources, it will randomly generate a counter value (a positive integer) to determine the pair to be selected. How many cycles are reserved for the resources received. Ptxlg is the number after Ptx is converted into logical time slots, Ptx is the resource reservation period determined by the terminal for resource selection, and is one of the values in the resource reservation period set M in the resource pool configuration used by the terminal, which is also used for resource selection. The value indicated by the "Resource reservation period" field in the first SCI of the terminal to send data after completing the resource selection. Therefore, the resource R(x, y+j*Ptxlg) is a series of resources marked by slanted hatching in the sub-figure 1 in FIG. 5 (the example in the figure is C=3). For time slots m+q*Prxlg, where q=1, 2, 3...Q, Prxlg is the number of Prx converted into logical time slots. Prx is the resource reservation period indicated by "Resource reservation period" in the first SCI transmitted in the PSCCH heard by the terminal. Since the terminal does not listen in the time slot m, here Prx is all possible values in the resource reservation period set M in the resource pool configuration used by the terminal, that is, the terminal will determine each value in M to calculate Whether the outgoing time slot m+q*Prxlg overlaps with the resource R(x,y+j*Ptxlg). For Q, if Prx<Tscal and nm<=Prxlg, (represents rounded up), otherwise Q=1. Tscal is equal to the value of T2 converted to milliseconds. For example, the terminal does not listen in the time slot m, and sequentially selects a Prx from the resource reservation period set M in the resource pool configuration used for resource exclusion. For a certain Prx, if Prx<Tscal and nm<=Prxlg, Assuming that the Q value is calculated as 2, then the time slot m+q*Prxlg is the time slot marked by the next two horizontal lines shaded by the time slot m in the sub-picture 1 in Fig. 5, otherwise Q=1, the time slot m+q *Prxlg is the time slot marked by the dotted shading in the subgraph 1 of FIG. 5 . Optionally, when the resource pool used by the terminal deactivates the reservation between TBs, the terminal may not perform the above Step 1-1.
Step 1-2:如果终端在侦听窗内时隙m内的资源E(v,m)上侦听到PSCCH中传输的第一SCI(v为资源的频域位置),测量该PSCCH的侧行参考信号接收功率(Sidelink Reference Signal Received Power,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,且UE所用资源池激活TB 间的资源预留,则终端假定在时隙m+q*Prxlg上都收到了相同内容的第一侧行控制信息。其中q=1,2,3…Q,对于Q,如果Prx<Tscal并且n-m<=Prxlg,
(代表上取整)否则Q=1。Tscal等于T2转化为毫秒后的值。Prxlg为Prx转化为逻辑时隙后的数目,Prx为终端侦听到的PSCCH中传输的第一SCI中“Resource reservation period”指示的资源预留周期。终端将判断在时隙m收到的第一SCI和这些假定收到的Q个第一SCI的“Time resource assignment”和“Frequency resource assignment”域指示的资源与资源R(x,y+j*Ptxlg)是否重叠,若重叠则从集合A中排除对应资源R(x,y)。上述j=0,1,2,3…C-1,C由终端生成的随机counter值确定。Ptxlg是Ptx转化为逻辑时隙后的数目,Ptx为进行资源选择的终端确定的资源预留周期。
Step 1-2: If the terminal senses the first SCI (v is the frequency domain position of the resource) transmitted in the PSCCH on the resource E(v, m) in the time slot m in the listening window, measure the side of the PSCCH. Sidelink Reference Signal Received Power (SL-RSRP) or the SL-RSRP of the PSSCH scheduled by the PSCCH (that is, the SL-RSRP of the corresponding PSSCH sent in the same time slot as the PSCCH), if the measured If the SL-RSRP is greater than the SL-RSRP threshold, and the resource pool used by the UE activates resource reservation between TBs, the terminal assumes that the first sideline control information with the same content is received on the timeslot m+q*Prxlg. where q=1,2,3...Q, for Q, if Prx<Tscal and nm<=Prxlg, (representative round up) otherwise Q=1. Tscal is equal to the value of T2 converted to milliseconds. Prxlg is the number after Prx is converted into logical time slots, and Prx is the resource reservation period indicated by "Resource reservation period" in the first SCI transmitted in the PSCCH heard by the terminal. The terminal will judge the first SCI received at time slot m and the resources indicated by the "Time resource assignment" and "Frequency resource assignment" fields of the Q first SCIs assumed to be received and the resource R(x,y+j* Ptxlg) whether they overlap, and if so, exclude the corresponding resource R(x, y) from the set A. The above j=0, 1, 2, 3...C-1, C are determined by the random counter value generated by the terminal. Ptxlg is the number after Ptx is converted into logical time slots, and Ptx is the resource reservation period determined by the terminal performing resource selection.
例如,当UE所用资源池激活TB间的预留,资源R(x,y+j*Ptxlg)为图5中子图2中斜线阴影标记的一系列资源(图中示例为C=3)。如果终端在时隙m资源E(v,m)上侦听到PSCCH中的第一SCI,并解码出Prx>Tscal,计算出Q等于1,终端将假定在时隙m+Prxlg上收到了相同内容的第一SCI。终端将判断在时隙m收到的第一SCI和假定在时隙m+Prxlg收到的第一SCI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+j*Ptxlg)是否重叠,若重叠则从资源集合A中排除资源R(x,y)。For example, when the resource pool used by the UE activates the reservation between TBs, the resource R(x, y+j*Ptxlg) is a series of resources marked with slashes in sub-figure 2 in FIG. 5 (the example in the figure is C=3) . If the terminal senses the first SCI in PSCCH on time slot m resource E(v, m), and decodes Prx>Tscal, and calculates that Q is equal to 1, the terminal will assume that it has received the same on time slot m+Prxlg Content's first SCI. The terminal will judge the resources 1, 2, 3, and 4 indicated by the "Time resource assignment" and "Frequency resource assignment" fields of the first SCI received at time slot m and assuming that the first SCI received at time slot m+Prxlg Whether , 5, 6 overlap with resource R(x, y+j*Ptxlg), if they overlap, resource R(x, y) is excluded from resource set A.
如果终端测量的SL-RSRP大于SL-RSRP阈值,且终端所用资源池去激活TB间的资源预留,则终端只判断在时隙m收到的第一SCI的“Time resource assignment”与“Frequency resource assignment”域指示的资源是否与资源R(x,y+j*Ptxlg)重叠,若重叠则从资源集合A中排除资源R(x,y)。可选地,当UE所用资源池去激活TB间的预留,资源R(x,y+j*Ptxlg)等于R(x,y)。If the SL-RSRP measured by the terminal is greater than the SL-RSRP threshold, and the resource pool used by the terminal deactivates the resource reservation between TBs, the terminal only judges the "Time resource assignment" and "Frequency assignment" of the first SCI received in the time slot m Whether the resource indicated by the resource assignment" field overlaps with the resource R(x,y+j*Ptxlg), if it does overlap, the resource R(x,y) is excluded from the resource set A. Optionally, when the resource pool used by the UE deactivates the reservation between TBs, the resource R(x, y+j*Ptxlg) is equal to 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3分贝(dB),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。
If the remaining resources in the resource set A are less than M total *X% after the above-mentioned resource exclusion, the SL-RSRP threshold is raised by 3 decibels (dB), and Step 1 is performed again. The physical layer reports the resource set A after resource exclusion to the upper layer as a candidate resource set.
也就是说,如果终端在侦听窗内时隙m发送数据没有进行侦听,终端将根据时隙m和其所用资源池配置中资源预留周期集合M中的每一种取值进行资源排除。具体地,终端将根据时隙m、资源选择窗的上界T2,和资源池配置中资源预留周期的取值确定一系列时隙,记为时隙集合1。终端将根据资源R(x,y)、以及自身生成的counter值,以及自身使用的资源预留周期确定一系列资源,记为资源集合1。如果资源集合1和时隙集合1存在重叠,则在资源集合A中排除资源R(x,y)。上述R(x,y)为资源集合A中的任意一个资源。That is to say, if the terminal sends data in time slot m within the listening window and does not listen, the terminal will perform resource exclusion according to time slot m and each value of resource reservation period set M in the resource pool configuration used by the terminal. . Specifically, the terminal will determine a series of time slots according to the time slot m, the upper bound T2 of the resource selection window, and the value of the resource reservation period in the resource pool configuration, denoted as time slot set 1 . The terminal will determine a series of resources according to the resource R(x, y), the counter value generated by itself, and the resource reservation period used by itself, which is denoted as resource set 1. If resource set 1 and slot set 1 overlap, resource R(x, y) is excluded from resource set A. The above R(x, y) is any resource in the resource set A.
可选的,当终端所用资源池去激活TB间的预留时,终端可以不执行上述Step 1-1。Optionally, when the resource pool used by the terminal deactivates the reservation between TBs, the terminal may not perform the above Step 1-1.
可选地,如果终端在侦听窗内时隙m内的资源E(v,m)上侦听到PSCCH中传输的第一SCI(v为资源的频域位置),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,且终端所用资源池激活TB间的资源预留,终端将根据侦听到PSCCH中“Time resource assignment”,“Frequency resource assignment”,“resource reservation period”域,资源选择窗的上界T2,以及时隙m,确定一系列资源,记为资源集合1,并根据资源R(X,Y)和自身生成的counter值,以及自身使用的资源预留周期确定一系列资源,记为资源集合2。如果资源集合1与资源集合2存在重叠则终端从资源集合A中排除资源R(X,Y)。Optionally, if the terminal senses the first SCI (v is the frequency domain position of the resource) transmitted in the PSCCH on the resource E(v, m) in the time slot m in the listening window, it measures the SL- value of the PSCCH. RSRP or the SL-RSRP of the PSSCH scheduled by the PSCCH (that is, the SL-RSRP of the corresponding PSSCH sent in the same time slot as the PSCCH), if the measured SL-RSRP is greater than the SL-RSRP threshold, and the resource pool used by the terminal is activated For resource reservation between TBs, the terminal will determine a series of parameters based on the "Time resource assignment", "Frequency resource assignment", "resource reservation period" fields in the PSCCH, the upper bound T2 of the resource selection window, and the time slot m. The resource is recorded as resource set 1, and a series of resources are determined according to the resource R(X, Y) and the counter value generated by itself, as well as the resource reservation period used by itself, and it is recorded as resource set 2. If the resource set 1 and the resource set 2 overlap, the terminal excludes the resource R(X, Y) from the resource set A.
如果测量的SL-RSRP大于SL-RSRP阈值,且终端所用资源池去激活TB间的资源预留,终端将根据侦听到PSCCH中“Time resource assignment”,“Frequency resource assignment”域,以及时隙m,确定一系列资源,记为资源集合1,如果资源集合1与R(X,Y)存在重叠,则终端从资源集合A中排除资源R(X,Y)。If the measured SL-RSRP is greater than the SL-RSRP threshold, and the resource pool used by the terminal deactivates the resource reservation between TBs, the terminal will listen to the "Time resource assignment", "Frequency resource assignment" fields in the PSCCH, and the time slot m. Determine a series of resources, denoted as resource set 1. If resource set 1 and R(X, Y) overlap, the terminal excludes resource R(X, Y) from resource set A.
上述R(X,Y)指资源集合A中的任意一个资源。The above R(X, Y) refers to any resource in the resource set A.
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。即终端从候选资源集合中随机选择资源发送数据。Step 2: The upper layer randomly selects resources from the reported candidate resource set to send data. That is, the terminal randomly selects resources from the candidate resource set to send data.
需要注意:requires attention:
1.上述RSRP阈值是由终端侦听到的PSCCH中携带的优先级P1和终端待发送数据的优先级P2决定的。终端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。1. The above RSRP threshold is determined by the priority P1 carried in the PSCCH heard by the terminal and the priority P2 of the data to be sent by the terminal. The configuration of the resource pool used by the terminal includes an SL-RSRP threshold table, and the SL-RSRP threshold table includes the SL-RSRP thresholds corresponding to all priority combinations. The configuration of the resource pool can be network configuration or pre-configured.
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。
For example, as shown in Table 1, assuming that the optional priority levels of P1 and P2 are both 0-7, the SL-RSRP thresholds corresponding to different priority combinations are represented by γ ij , where i in γ ij is the priority The value of the priority level P1, j is the value of the priority level P2.
表1Table 1
当终端侦听到其他UE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,终端通过查上述表1的方式确定SL-RSRP阈值。When the terminal detects the PSCCH sent by other UEs, obtains the priority P1 carried in the first sideline control information transmitted in the PSCCH and the priority P2 of the data to be sent, and the terminal determines the SL-RSRP by looking up Table 1 above. threshold.
2.终端利用测量到的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。2. Whether the terminal 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. The configuration of the resource pool can be network configuration or pre-configured.
3.关于上述Prxlg/Ptxlg是Prx/Ptx转化为逻辑时隙的数目:假设一个时隙等于1毫秒,Prx为5毫秒,在这5个时隙中,有2个时隙可能是时分双工(Time Division Duplex,TDD)模式下的下行时隙或者是发送同步信号的时隙,这些时隙并不包含在Sidelink的资源池中,因此需要将Prx代表的5毫秒转化为逻辑时隙3个时隙,即Prxlg。3. Regarding the above Prxlg/Ptxlg is the number of logical time slots converted by Prx/Ptx: Assuming that one time slot is equal to 1 millisecond and Prx is 5 milliseconds, among these 5 time slots, 2 time slots may be time division duplex Downlink time slots in (Time Division Duplex, TDD) mode or time slots for sending synchronization signals, these time slots are not included in the Sidelink resource pool, so it is necessary to convert the 5 milliseconds represented by Prx into 3 logical time slots. time slot, ie Prxlg.
4.上述X%,X可能的取值为{20,35,50}。终端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. For the above X%, the possible values of X are {20, 35, 50}. The configuration of the resource pool used by the terminal includes the corresponding relationship between the priority and the above possible values, and the terminal 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 either configured by the network or pre-configured.
此外,在NR-V2X中还支持在完成资源选择之后,对于已选但未通过发送第一SCI指示的资源进行再评估(Re-evaluation)。In addition, NR-V2X also supports re-evaluation (Re-evaluation) for resources that have been selected but not indicated by sending the first SCI after the resource selection is completed.
如图6所示,资源x、y、z、u、v是终端在时隙n已经选择的时频资源,资源y位于时隙m。对于终端即将在资源y发送第一SCI进行首次指示的资源z和u(资源y之前已经被资源x中的第一SCI指示)。终端至少在时隙m-T
3执行一次上述Step 1,即至少在时隙m-T
3按上述确定资源选择窗与侦听窗,并执行上述Step 1对资源选择窗内的资源进行资源排除,得到候选资源集合。如果资源z或u不在候选资源集合中,则终端执行上述Step 2重选资源z和u中不在候选资源集合中的时频资源,取决于终端实现,终端也可以重选任何已经选择但未通过发送第一SCI指示的资源,例如资源z、u和v中的任意一个或多个资源。上述T
3等于T
proc,1。(图6中虚线箭头表示即将发送第一SCI指示,实线箭头表示已经发送第一SCI指示)
As shown in FIG. 6 , resources x, y, z, u, and v are time-frequency resources selected by the terminal in time slot n, and resource y is located in time slot m. For the resources z and u that the terminal will send the first SCI to indicate for the first time in resource y (resource y has been indicated by the first SCI in resource x before). The terminal performs the above Step 1 at least once in the time slot mT 3 , that is, at least in the time slot mT 3 , determines the resource selection window and the listening window according to the above, and executes the above Step 1 to exclude resources in the resource selection window to obtain candidate resources. gather. If the resource z or u is not in the candidate resource set, the terminal performs the above Step 2 to reselect the time-frequency resources in the resource z and u that are not in the candidate resource set. Depending on the implementation of the terminal, the terminal can also reselect any selected but failed time-frequency resources. Send the resources indicated by the first SCI, for example, any one or more of resources z, u, and v. The above T 3 is equal to T proc,1 . (The dotted arrow in Figure 6 indicates that the first SCI indication is about to be sent, and the solid arrow indicates that the first SCI indication has been sent)
NR-V2X支持资源抢占(Pre-emption)机制。在NR-V2X中,关于资源抢占机制的结论都是以被抢占终端的角度描述的。在完成资源选择后,终端仍然持续侦听第一SCI,如果已经选择的并且已经通过发送第一SCI指示的时频资源满足以下三个条件,则表示该时频资源被其他终端抢占,终端针对该时频资源触发资源重选:NR-V2X supports resource preemption (Pre-emption) mechanism. In NR-V2X, the conclusions about the resource preemption mechanism are all described from the perspective of the preempted terminal. After the resource selection is completed, the terminal continues to listen to the first SCI. If the time-frequency resource that has been selected and indicated by sending the first SCI meets the following three conditions, it means that the time-frequency resource is preempted by other terminals, and the terminal will target the time-frequency resource. This time-frequency resource triggers resource reselection:
1.侦听到的第一SCI中指示的资源与终端已选且已指示的资源重叠。1. The detected resource indicated in the first SCI overlaps with the resource selected and indicated by the terminal.
2.终端侦听到的第一SCI对应的PSCCH的SL-RSRP或该PSCCH调度的PSSCH的SL-RSRP大于SL RSRP阈值。2. The SL-RSRP of the PSCCH corresponding to the first SCI heard by the terminal or the SL-RSRP of the PSSCH scheduled by the PSCCH is greater than the SL RSRP threshold.
3.侦听到的第一SCI中携带的优先级比终端待发送数据的优先级高。3. The priority carried in the detected first SCI is higher than the priority of the data to be sent by the terminal.
如图7所示,资源w、x、y、z、v是终端在时隙n已经选择的时频资源,资源x位于时隙m。对于终端即将在资源x上发送第一侧行控制信息指示的且已经被终端之前发送的第一侧行控制信息指示的资源x和y。终端至少在时隙m-T
3执行一次上述Step 1,即至少在时隙m-T
3按上述确定资源选择窗与侦听窗,并执行上述Step 1对资源选择窗内的资源进行资源排除,确定候选资源集合。如果资源x或y不在候选资源集合中,进一步判断其是否满足上述三个条件,如果是,则终端执行Step 2重选资源x和y中满足上述3个条件的时频资源。此外,当触发资源重选后,取决于终端实现,终端可以重选任何已选择但未通过发送第一侧行控制信息指示的资源,比如资源z和v中的任意一个或多个。上述T
3等于T
proc,1。
As shown in FIG. 7 , resources w, x, y, z, and v are time-frequency resources that have been selected by the terminal in time slot n, and resource x is located in time slot m. For the resources x and y indicated by the first sideline control information that the terminal is about to send on resource x and which have been indicated by the first sideline control information previously sent by the terminal. The terminal performs the above Step 1 at least once in the time slot mT 3 , that is, at least in the time slot mT 3 , determines the resource selection window and the listening window according to the above, and executes the above Step 1 to exclude the resources in the resource selection window, and determine the candidate resources. gather. If the resource x or y is not in the candidate resource set, it is further judged whether it satisfies the above three conditions, and if so, the terminal performs Step 2 to reselect the time-frequency resources in the resources x and y that satisfy the above three conditions. In addition, when resource reselection is triggered, depending on the terminal implementation, the terminal may reselect any resource that has been selected but not indicated by sending the first sideline control information, such as any one or more of resources z and v. The above T 3 is equal to T proc,1 .
上述SL-RSRP为PSCCH或PSSCH中所有承载参考信号(解调参考信号(Demodulation Reference Signal,DMRS)或信道状态信息参考信号(Channel State Information Reference Signal,CSI-RS))的资源元素(Resource Element,RE)上的接收功率的线性平均值。当PSSCH采用多个天线端口传输时, SL-RSRP为各个天线端口测得的SL-RSRP的和。The above-mentioned SL-RSRP is the resource element (Resource Element) of all bearing reference signals (Demodulation Reference Signal (DMRS) or Channel State Information Reference Signal (CSI-RS)) in PSCCH or PSSCH. The linear mean of the received power over RE). When the PSSCH is transmitted using multiple antenna ports, the SL-RSRP is the sum of the SL-RSRPs measured by the respective antenna ports.
根据上文所述,第一SCI承载在PSCCH中,主要包含资源侦听相关的域,方便其他UE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SCI,第二SCI主要包括数据解调相关的域,方便其他UE解调该PSSCH中的数据。According to the above, the first SCI is carried in the PSCCH, and mainly includes a domain related to resource sensing, which is convenient for other UEs to perform resource exclusion and resource selection after decoding. In the PSSCH, in addition to data, a second SCI is also carried, and the second SCI mainly includes a field related to data demodulation, which is convenient for other UEs to demodulate the data in the PSSCH.
为便于更好的理解本申请实施例,对本申请相关的终端间协作进行说明。To facilitate a better understanding of the embodiments of the present application, the inter-terminal cooperation related to the present application is described.
终端间协作是版本17(release17,R17)侧行(SL)传输的研究目标之一,用于降低隐蔽站、半双工等问题的负面影响。例如图8中,由于建筑物的遮挡,UE A并没有收到UE B发送的第一SCI或者测量得到的SL-RSRP较低。当UE A触发资源选择或重选时,并没有排除UE B所预留的资源,这有可能导致资源碰撞。此时UE B称为UE A的隐蔽站。Inter-terminal cooperation is one of the research goals of sideline (SL) transmission in release 17 (release 17, R17), which is used to reduce the negative impact of problems such as concealed stations and half-duplex. For example, in Fig. 8, due to the occlusion of buildings, UE A does not receive the first SCI sent by UE B or the measured SL-RSRP is low. When UE A triggers resource selection or reselection, the resources reserved by UE B are not excluded, which may lead to resource collision. At this time, UE B is called the hidden station of UE A.
通过终端间协作,比如图8中UE A与UE C之间的协作,该问题可以得到解决。UE C可以收到UE B发送的第一SCI,UE C确定第一资源集合时可以将UE B预留的资源排除,并将第一资源集合指示给UE A,UE A在第一资源集合与进行资源排除后得到的候选资源集合的交集中选择资源,就可以避免与UE B发生资源碰撞。Through inter-terminal cooperation, such as the cooperation between UE A and UE C in Figure 8, this problem can be solved. UE C can receive the first SCI sent by UE B, and when UE C determines the first resource set, it can exclude the resources reserved by UE B, and indicate the first resource set to UE A. By selecting resources in the intersection of candidate resource sets obtained after resource exclusion, resource collision with UE B can be avoided.
上述描述为终端间协作的示例之一。而终端间协作的触发机制主要分为以下两种:The above description is one of the examples of inter-terminal cooperation. The trigger mechanism of inter-terminal cooperation is mainly divided into the following two types:
1.被协作终端(图8中UE A)发送第一信息触发协作,协作终端(图8中UE C)构造第一资源集合并发送给UE A,协助UE A进行资源选择和/或资源排除。1. The coordinated terminal (UE A in FIG. 8 ) sends first information to trigger cooperation, and the cooperating terminal (UE C in FIG. 8 ) constructs a first resource set and sends it to UE A to assist UE A in resource selection and/or resource exclusion .
2.协作终端(图8中UE C)根据网络配置或预配置,主动向被协作终端(图8中UE A)发送构造的第一资源集合。2. The cooperating terminal (UE C in FIG. 8 ) actively sends the constructed first resource set to the coordinated terminal (UE A in FIG. 8 ) according to the network configuration or pre-configuration.
上述协作终端指构造并发送第一资源集合的终端,被协作终端指利用第一资源集合进行资源选择和/或资源排除的终端。The above-mentioned cooperative terminal refers to a terminal that constructs and transmits a first resource set, and a cooperative terminal refers to a terminal that uses the first resource set to perform resource selection and/or resource exclusion.
为便于更好的理解本申请实施例,对本申请相关的信道繁忙率(Channel Busy Ratio,CBR)/信道占用率(Channel Occupancy Ratio,CR)测量进行说明。In order to better understand the embodiments of the present application, the measurement of the channel busy ratio (Channel Busy Ratio, CBR)/channel occupancy ratio (Channel Occupancy Ratio, CR) related to the present application is described.
CBR和CR是用于支持拥塞控制的两个基本测量指标。CBR and CR are two basic metrics used to support congestion control.
其中,CBR的定义为:CBR测量窗[n-c,n-1]内,SL RSSI高于配置门限的子信道占资源池内子信道总数的比例,其中c等于100或100·2
μ个时隙,μ与子载波间隔有关,示例性地,15kHz,30kHz,60kHz,120kHz的子载波间隔对应μ为0,1,2,3。
Among them, CBR is defined as: in the CBR measurement window [nc, n-1], the proportion of sub-channels with SL RSSI higher than the configured threshold to the total number of sub-channels in the resource pool, where c is equal to 100 or 100·2 μ timeslots, μ is related to the sub-carrier spacing, for example, the sub-carrier spacing of 15 kHz, 30 kHz, 60 kHz, and 120 kHz corresponds to μ as 0, 1, 2, and 3.
CR的定义为:UE在[n-a,n-1]范围内已经用于发送数据的子信道个数和[n,n+b]范围内已获得的侧行授权包含的子信道个数占[n-a,n+b]范围内属于资源池的子信道总数的比例,CR可以针对不同的优先级,分别计算。其中a为正整数,b为0或者为正整数,a和b的值均由UE确定,但需要满足以下三个条件:The definition of CR is: the number of sub-channels that the UE has used to transmit data within the range of [n-a,n-1] and the number of sub-channels included in the sideline grant obtained within the range of [n,n+b] accounts for [ The proportion of the total number of sub-channels belonging to the resource pool within the range of n-a,n+b], CR can be calculated separately for different priorities. Where a is a positive integer, b is 0 or a positive integer, the values of a and b are determined by the UE, but the following three conditions must be met:
1)a+b+1=1000或1000·2
μ个时隙,μ与子载波间隔有关,示例性地,15kHz,30kHz,60kHz,120kHz的子载波间隔对应μ为0,1,2,3。
1) a+b+1=1000 or 1000·2 μ time slots, μ is related to the subcarrier spacing, for example, the subcarrier spacing of 15kHz, 30kHz, 60kHz, and 120kHz corresponds to μ being 0, 1, 2, 3 .
2)b<(a+b+1)/2;2)b<(a+b+1)/2;
3)n+b不超侧行授权指示的当前传输的最后一次传输;3) n+b does not exceed the last transmission of the current transmission indicated by the sideline authorization;
注:资源池中时域上最小的调度单位为一个时隙,频域上最小的调度单位为一个子信道。示例性地,一个子信道的频域宽度可能的取值为10,12,15,20,25,50,75,100个PRB。Note: The smallest scheduling unit in the time domain in the resource pool is a time slot, and the smallest scheduling unit in the frequency domain is a subchannel. Exemplarily, the possible values of the frequency domain width of a subchannel are 10, 12, 15, 20, 25, 50, 75, and 100 PRBs.
图9为UE测量CBR/CR的简单示例,假设UE所用资源池中只包括两个子信道,图9中所有时隙均属于UE所用的资源池,且UE发送PSSCH和PSCCH只占一个子信道。UE所用的侧行授权中的子信道为v
1,v
2,v
3,v
4,v
5,当UE即将在资源v
5发送数据时,UE在时隙n-N测量CR和CBR,从而判断是否放弃在子信道v
5上的传输。
Figure 9 is a simple example of UE measuring CBR/CR. It is assumed that the resource pool used by the UE includes only two subchannels, all the time slots in Figure 9 belong to the resource pool used by the UE, and the UE only occupies one subchannel for sending PSSCH and PSCCH. The sub-channels in the sideline grant used by the UE are v 1 , v 2 , v 3 , v 4 , v 5 . When the UE is about to send data in resource v 5 , the UE measures CR and CBR in time slot nN to determine whether Abandon transmission on subchannel v5 .
对于CBR,在时隙[n-N-c,n-N-1]中,UE在两个子信道y、u上测量得到的侧行接收信号强度指示(Sidelink Received Signal Strength Indication,SL-RSSI)大于配置的门限值,则CBR为2除以时隙[n-N-c,n-N-1]中属于UE所用资源池的子信道总数,或CBR为2除以时隙[n-N-c,n-N-1]中除UE发送所用时隙外属于UE所用资源池的子信道总数。For CBR, in the time slot [n-N-c, n-N-1], the Sidelink Received Signal Strength Indication (SL-RSSI) measured by the UE on the two subchannels y and u is greater than the configured threshold , then the CBR is 2 divided by the total number of sub-channels belonging to the resource pool used by the UE in the time slot [n-N-c, n-N-1], or the CBR is 2 divided by the time slot [n-N-c, n-N-1] in the time slot [n-N-c, n-N-1] except the time slot used by the UE for transmission The total number of sub-channels belonging to the resource pool used by the UE.
对于CR,假设b=0,UE在[n-N-a,n-N-1]中已经用于发送数据的子信道为v
1,v
2,v
3,v
4,则CR为4除以时隙[n-N-a,n-N-1]中属于UE所用资源池的子信道总数或CR为4除以时隙[n-N-a,n-N]中属于UE所用资源池的子信道总数。
For CR, assuming b=0, the sub-channels that the UE has used to transmit data in [nNa, nN-1] are v 1 , v 2 , v 3 , v 4 , then CR is 4 divided by the time slot [nNa, The total number of subchannels belonging to the resource pool used by the UE in nN-1] or CR is 4 divided by the total number of subchannels belonging to the resource pool used by the UE in the time slot [nNa, nN].
上述对于不同优先级分别计算CR,假设b=0,UE在[n-N-a,n-N-1]中已经用于发送数据的子信道为v
1,v
2,v
3,v
4,针对某一优先级f,UE在子信道v
1,v
4中发送了优先级为f的数据,则针对优先级f的CR为2除以时隙[n-N-a,n-N-1]中属于UE所用资源池的子信道总数或CR为2除以时隙[n-N-a,n-N] 中属于UE所用资源池的子信道总数。
The above calculation of CR for different priorities, assuming b=0, the sub-channels that the UE has used to send data in [nNa, nN-1] are v 1 , v 2 , v 3 , v 4 , for a certain priority f, the UE sends data with priority f in subchannels v 1 , v 4 , then the CR for priority f is 2 divided by the sub-channels in the resource pool used by the UE in the time slot [nNa, nN-1] The total number or CR is 2 divided by the total number of sub-channels in the time slot [nNa, nN] belonging to the resource pool used by the UE.
上述N与UE的处理能力相关。The above N is related to the processing capability of the UE.
在本申请中,第一SCI也可以称之为第一阶SCI,第二SCI也可以称之为第二阶SCI。In this application, the first SCI may also be referred to as a first-order SCI, and the second SCI may also be referred to as a second-order SCI.
需要说明的是,终端间协作是R17SL的重点研究内容之一,从上文中得知,终端间协作的触发机制主要分成两类,但尚未披露如何触发终端间协作。It should be noted that inter-terminal collaboration is one of the key research contents of R17SL. From the above, it is known that the triggering mechanism of inter-terminal collaboration is mainly divided into two categories, but how to trigger inter-terminal collaboration has not been disclosed.
基于上述问题,本申请提出了一种触发终端间协作的方案,可以基于CBR/CR测量,基于UE所用的RSRP门限,以及基于候选资源集合中的资源数量等方式触发终端间协作的机制。Based on the above problems, the present application proposes a scheme for triggering inter-terminal collaboration, which can trigger inter-terminal collaboration based on CBR/CR measurement, the RSRP threshold used by the UE, and the number of resources in the candidate resource set.
以下通过具体实施例详述本申请的技术方案。The technical solutions of the present application are described in detail below through specific embodiments.
图10是根据本申请实施例的无线通信的方法200的示意性流程图,如图10所示,该方法200可以包括如下内容中的至少部分内容:FIG. 10 is a schematic flowchart of a method 200 for wireless communication according to an embodiment of the present application. As shown in FIG. 10 , the method 200 may include at least part of the following contents:
S210,在满足第一条件的情况下,第一终端向第二终端发送第一信息,其中,该第一信息用于触发终端间协作。S210: In the case where the first condition is satisfied, the first terminal sends first information to the second terminal, where the first information is used to trigger inter-terminal cooperation.
在本申请实施例中,在满足第一条件的情况下,第一终端通过发送第一信息触发终端间协作,第二终端可以根据该第一信息确定第一资源集合,并将该第一资源集合指示给第一终端,从而第一终端可以利用该第一资源集合进行资源排除和/或资源选择。也即,在本申请实施例中,第一终端可以在合适时机触发终端间协作,以及基于第二终端反馈的资源集合进行资源排除和/或资源选择,从而提升存在隐蔽站、半双工等问题的场景下的侧行传输性能。In this embodiment of the present application, when the first condition is met, the first terminal triggers inter-terminal cooperation by sending the first information, and the second terminal can determine the first resource set according to the first information, and use the first resource The set is indicated to the first terminal, so that the first terminal can utilize the first resource set for resource exclusion and/or resource selection. That is, in this embodiment of the present application, the first terminal may trigger inter-terminal cooperation at an appropriate time, and perform resource exclusion and/or resource selection based on the resource set fed back by the second terminal, thereby improving the existence of hidden stations, half-duplex, etc. Sideline transfer performance in the scenario in question.
可选地,该第一条件可以是基于CBR/CR测量,基于第一终端所用的RSRP门限,或者基于候选资源集合中的资源数量等确定的。Optionally, the first condition may be determined based on CBR/CR measurement, based on the RSRP threshold used by the first terminal, or based on the number of resources in the candidate resource set, or the like.
可选地,在一些实施例中,该第一条件包括但不限于以下至少一种:Optionally, in some embodiments, the first condition includes but is not limited to at least one of the following:
该第一终端测量得到的CBR大于第一阈值,或者,该第一终端测量得到的CBR小于第一阈值;The CBR measured by the first terminal is greater than the first threshold, or the CBR measured by the first terminal is less than the first threshold;
该第一终端测量得到的CR大于第二阈值,或者,该第一终端测量得到的CR小于第二阈值;The CR measured by the first terminal is greater than the second threshold, or the CR measured by the first terminal is less than the second threshold;
该第一终端针对至少一个优先级测量得到的CR大于第三阈值,或者,该第一终端针对至少一个优先级测量得到的CR小于第三阈值;The CR measured by the first terminal for at least one priority is greater than the third threshold, or the CR measured by the first terminal for at least one priority is less than the third threshold;
该第一终端针对多个优先级测量得到的CR之和大于第四阈值,或者,该第一终端针对多个优先级测量得到的CR之和小于第四阈值;The sum of the CRs measured by the first terminal for multiple priorities is greater than the fourth threshold, or the sum of the CRs measured by the first terminal for multiple priorities is smaller than the fourth threshold;
该第一终端执行完基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除之后,候选资源集合中的资源数量大于第五阈值;After the first terminal has performed the candidate resource exclusion based on the unlistened time slot and/or the candidate resource exclusion based on the SCI detected in the listening window, the number of resources in the candidate resource set is greater than the fifth threshold;
该第一终端执行完基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除之后,候选资源集合中的资源数量与候选资源集合中初始的资源数量的比值大于第六阈值;After the first terminal executes the candidate resource exclusion based on the unlistened time slot and/or the candidate resource exclusion based on the SCI detected in the listening window, the number of resources in the candidate resource set is the same as the initial number in the candidate resource set. The ratio of the number of resources is greater than the sixth threshold;
该第一终端所使用的全部SL-RSRP阈值大于第七阈值,或者,该第一终端所使用的部分SL-RSRP阈值大于第七阈值;All SL-RSRP thresholds used by the first terminal are greater than the seventh threshold, or some SL-RSRP thresholds used by the first terminal are greater than the seventh threshold;
该第一终端待传输数据的重传次数大于第八阈值,或者,该第一终端待传输数据的重传次数小于第八阈值;The number of retransmissions of the data to be transmitted by the first terminal is greater than the eighth threshold, or the number of retransmissions of the data to be transmitted by the first terminal is less than the eighth threshold;
该第一终端判断冲突的次数大于第九阈值,该冲突包括上行发送与侧行发送冲突、侧行发送与侧行发送冲突、侧行发送与侧行接收冲突中的至少一种;The first terminal determines that the number of conflicts is greater than the ninth threshold, and the conflict includes at least one of a conflict between uplink transmission and sideline transmission, a conflict between sideline transmission and sideline transmission, and a conflict between sideline transmission and sideline reception;
该第一终端处于目标时间单元;the first terminal is in the target time unit;
该第一终端触发了资源选择或重选;The first terminal triggers resource selection or reselection;
该第一终端触发了针对已选资源的再评估流程;The first terminal triggers the re-evaluation process for the selected resource;
该第一终端触发了针对已选资源是否被其他终端抢占的判断流程;The first terminal triggers a process of judging whether the selected resource is preempted by other terminals;
触发该第一终端重复执行基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除的阈值大于或等于第十阈值。The threshold for triggering the first terminal to repeatedly perform candidate resource exclusion based on unlistened time slots and/or candidate resource exclusion based on SCIs heard within the listening window is greater than or equal to the tenth threshold.
需要说明的是,在第一条件中,“基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除”,具体可以是上述Step1。具体地,“基于未侦听的时隙进行候选资源排除”,可以是上述Step1-1。“基于侦听窗内侦听到的SCI进行候选资源排除”,可以是上述Step1-2。It should be noted that, in the first condition, "to exclude candidate resources based on the time slot that is not listened to and/or to exclude candidate resources based on the SCI heard in the listening window" may specifically be the above Step 1. Specifically, the "rejection of candidate resources based on unlistened time slots" may be the above Step 1-1. "Excluding candidate resources based on the SCIs detected in the listening window" may be the above Step 1-2.
在一些实施例中,在第一条件中,“该第一终端执行完基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除之后”,可以是“该第一终端执行完上述Step1之后”。In some embodiments, in the first condition, "after the first terminal has performed the candidate resource exclusion based on the unlistened time slot and/or the candidate resource exclusion based on the SCI heard in the listening window", It may be "after the first terminal executes the above Step 1".
此外,在第一条件中,“候选资源集合中初始的资源数量”可以是上述Step1中的“M
total”。
In addition, in the first condition, the "initial number of resources in the candidate resource set" may be "M total " in the above Step 1.
还需要说明的是,在第一条件中,“触发该第一终端重复执行基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除的阈值”可以是上述Step1中的“X%”。It should also be noted that, in the first condition, "trigger the first terminal to repeatedly execute the threshold for excluding candidate resources based on unlistened time slots and/or excluding candidate resources based on SCIs detected in the listening window. " can be "X%" in Step1 above.
可选地,在第一条件中,Optionally, in the first condition,
该至少一个优先级为预配置或协议约定的;或者,The at least one priority is pre-configured or agreed upon by a protocol; or,
该至少一个优先级为网络设备配置或指示的;或者,The at least one priority is configured or indicated by the network device; or,
该至少一个优先级为基于终端实现确定的。The at least one priority is determined based on the terminal implementation.
可选地,在一种实现中,该至少一个优先级为大于目标优先级的全部优先级,或者,该至少一个优先级小于目标优先级的全部优先级。Optionally, in one implementation, the at least one priority is all priorities greater than the target priority, or the at least one priority is all the priorities lower than the target priority.
可选地,在第一条件中,Optionally, in the first condition,
该多个优先级为预配置或协议约定的;或者,The multiple priorities are pre-configured or agreed upon by the protocol; or,
该多个优先级为网络设备配置或指示的;或者,The plurality of priorities are configured or indicated by the network device; or,
该多个优先级为基于终端实现确定的。The multiple priorities are determined based on the terminal implementation.
可选地,在一种实现中,该多个优先级为大于目标优先级的全部优先级,或者,该多个优先级为小于目标优先级的全部优先级。Optionally, in one implementation, the multiple priorities are all priorities greater than the target priority, or the multiple priorities are all the priorities smaller than the target priority.
可选地,该目标优先级为取决于终端实现的一个优先级;或者,该目标优先级为预配置或协议约定的;或者,该目标优先级为网络设备配置或指示的。Optionally, the target priority is a priority that depends on terminal implementation; or, the target priority is pre-configured or agreed in a protocol; or, the target priority is configured or indicated by the network device.
需要说明的是,第一终端在执行上述Step 1时会测量SL-RSRP并与SL-RSRP阈值进行比较从而确定是否排除对应资源。第一终端所用资源池的配置中包含一张SL-RSRP阈值表,如上述表1,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。第一终端根据侦听到的PSCCH中携带的优先级P1和待发送数据的优先级P2确定对应的SL-RSRP阈值。(详见上述Step 1至Step 2的相关描述)It should be noted that, when the first terminal performs the above Step 1, the SL-RSRP will be measured and compared with the SL-RSRP threshold to determine whether to exclude the corresponding resource. The configuration of the resource pool used by the first terminal includes an SL-RSRP threshold table, as shown in Table 1 above. 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-configured. The first terminal determines the corresponding SL-RSRP threshold according to the priority P1 carried in the sensed PSCCH and the priority P2 of the data to be sent. (See the relevant descriptions of Step 1 to Step 2 above)
可选地,在第一条件中,该第一终端所使用的全部SL-RSRP阈值,包括:Optionally, in the first condition, all SL-RSRP thresholds used by the first terminal include:
该第一终端执行基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除的过程中,该第一终端根据侦听窗内侦听到的SCI携带的优先级和待发送数据的优先级确定的全部SL-RSRP阈值;或者,During the process that the first terminal performs candidate resource exclusion based on unlistened time slots and/or candidate resource exclusion based on the SCI detected in the listening window, the first terminal performs the process according to the All SL-RSRP thresholds determined by the priority carried by the SCI and the priority of the data to be sent; or,
该第一终端根据待发送数据的优先级确定的全部SL-RSRP阈值。All SL-RSRP thresholds determined by the first terminal according to the priority of the data to be sent.
例如,该第一终端所使用的全部SL-RSRP阈值可以包括:该第一终端在执行上述Step 1过程中根据侦听到的SCI携带的优先级和待发送数据的优先级确定的全部SL-RSRP阈值。考虑到该第一终端可能多次提升SL-RSRP阈值且重复执行上述Step 1,该第一终端所使用的全部SL-RSRP阈值可以包括:该第一终端在首次或最后一次执行上述Step 1过程中根据侦听到的SCI携带的优先级和待发送数据的优先级确定的全部SL-RSRP阈值。For example, all SL-RSRP thresholds used by the first terminal may include: all SL-RSRP thresholds determined by the first terminal according to the priority carried by the SCI and the priority of the data to be sent during the execution of the above Step 1 by the first terminal. RSRP threshold. Considering that the first terminal may raise the SL-RSRP threshold multiple times and repeatedly perform the above Step 1, all the SL-RSRP thresholds used by the first terminal may include: the first terminal performs the above Step 1 process for the first time or the last time All SL-RSRP thresholds are determined according to the priority carried by the sensed SCI and the priority of the data to be sent.
又例如,该第一终端所使用的全部SL-RSRP阈值可以包括:该第一终端根据自身待发送数据的优先级确定的全部SL-RSRP阈值,例如上述表1中的某一行。考虑到该第一终端可能多次提升SL-RSRP阈值,该第一终端所使用的全部SL-RSRP阈值可以包括:SL-RSRP阈值未提升或SL-RSRP阈值最后一次提升后,该第一终端根据自身待发送数据的优先级确定的全部SL-RSRP阈值。或者该第一终端所使用的全部SL-RSRP阈值可以包括:该第一终端根据自身待发送数据的优先级和所有可能的优先级确定的SL-RSRP阈值。For another example, all SL-RSRP thresholds used by the first terminal may include: all SL-RSRP thresholds determined by the first terminal according to the priority of the data to be sent by the first terminal, such as a row in Table 1 above. Considering that the first terminal may raise the SL-RSRP threshold multiple times, all the SL-RSRP thresholds used by the first terminal may include: the SL-RSRP threshold is not raised or after the SL-RSRP threshold is raised for the last time, the first terminal All SL-RSRP thresholds determined according to the priority of the data to be sent by itself. Or all SL-RSRP thresholds used by the first terminal may include: SL-RSRP thresholds determined by the first terminal according to the priority of the data to be sent by the first terminal and all possible priorities.
可选地,在第一条件中,该第一终端所使用的部分SL-RSRP阈值,包括:Optionally, in the first condition, the partial SL-RSRP threshold used by the first terminal includes:
该第一终端执行基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除的过程中,该第一终端根据侦听到的侧行控制信息携带的大于优先级门限值的优先级和待发送数据的优先级确定的SL-RSRP阈值;或者,During the process that the first terminal performs the candidate resource exclusion based on the unlistened time slot and/or the candidate resource exclusion based on the SCI sensed in the listening window, the first terminal performs the process according to the sensed sideline control information. The carried priority greater than the priority threshold and the SL-RSRP threshold determined by the priority of the data to be sent; or,
该第一终端执行基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除的过程中,该第一终端根据侦听到的侧行控制信息携带的小于优先级门限值的优先级和待发送数据的优先级确定的SL-RSRP阈值;或者,During the process that the first terminal performs the candidate resource exclusion based on the unlistened time slot and/or the candidate resource exclusion based on the SCI sensed in the listening window, the first terminal performs the process according to the sensed sideline control information. The carried priority less than the priority threshold and the SL-RSRP threshold determined by the priority of the data to be sent; or,
该第一终端根据待发送数据的优先级和大于优先级门限值的优先级确定的SL-RSRP阈值;the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority greater than the priority threshold;
该第一终端根据待发送数据的优先级和小于优先级门限值的优先级确定的SL-RSRP阈值。The first terminal determines the SL-RSRP threshold according to the priority of the data to be sent and the priority less than the priority threshold.
可选地,该优先级门限值为预配置或协议约定的;或者,该优先级门限值为网络设备配置或指示的;或者,该优先级门限值为基于终端实现确定的。Optionally, the priority threshold value is pre-configured or agreed in a protocol; or, the priority threshold value is configured or indicated by a network device; or, the priority threshold value is determined based on terminal implementation.
例如,该第一终端所使用的部分SL-RSRP阈值可以包括:该第一终端在执行上述Step 1过程中根据侦听到的SCI携带的大于或小于优先级门限值的优先级,以及待发送数据的优先级确定的SL-RSRP阈值。考虑到该第一终端可能多次提升SL-RSRP阈值且重复执行上述Step 1,该第一终端所使用的部分SL-RSRP阈值可以包括:该第一终端在首次或最后一次执行上述Step 1过程中根据侦听到的SCI携带的大于或小于优先级门限值的优先级,以及待发送数据的优先级确定的全部SL-RSRP阈值。For example, the partial SL-RSRP threshold used by the first terminal may include: a priority carried by the first terminal according to the detected SCI in the process of performing the above Step 1 that is greater than or less than the priority threshold, and a pending SL-RSRP threshold determined by the priority of sending data. Considering that the first terminal may raise the SL-RSRP threshold multiple times and repeatedly perform the above Step 1, the partial SL-RSRP threshold used by the first terminal may include: the first terminal performs the above Step 1 process for the first time or the last time All the SL-RSRP thresholds are determined according to the priority carried by the sensed SCI which is greater than or less than the priority threshold, and the priority of the data to be sent.
又例如,该第一终端所使用的部分SL-RSRP阈值可以包括:该第一终端根据自身待发送数据的 优先级和大于或小于优先级门限值的优先级确定的SL-RSRP阈值。考虑到该第一终端可能多次提升SL-RSRP阈值,该第一终端所使用的部分SL-RSRP阈值可以包括:SL-RSRP阈值未提升或SL-RSRP阈值最后一次提升后,该第一终端根据自身待发送数据的优先级和大于或小于优先级门限值的优先级确定的SL-RSRP阈值。For another example, the partial SL-RSRP threshold used by the first terminal may include: the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent by the first terminal and the priority greater than or less than the priority threshold. Considering that the first terminal may raise the SL-RSRP threshold multiple times, the partial SL-RSRP threshold used by the first terminal may include: the SL-RSRP threshold is not raised or after the SL-RSRP threshold is raised for the last time, the first terminal The SL-RSRP threshold determined according to the priority of the data to be sent by itself and the priority greater than or less than the priority threshold.
可选地,在第一条件中,该目标时间单元包括但不限于以下至少一种:Optionally, in the first condition, the target time unit includes but is not limited to at least one of the following:
该第一终端触发资源选择或资源重选的时间单元,例如,该第一终端触发资源选择或资源重选的时间单元为上述图5中的时隙n;The time unit for triggering resource selection or resource reselection by the first terminal, for example, the time unit for triggering resource selection or resource reselection by the first terminal is the time slot n in FIG. 5;
该第一终端触发资源选择或资源重选的时间单元与N1个时间单元的差值,N1为正整数,例如,该第一终端触发资源选择或资源重选的时间单元为上述图5中的时隙n;The difference between the time unit when the first terminal triggers resource selection or resource reselection and N1 time units, where N1 is a positive integer, for example, the time unit when the first terminal triggers resource selection or resource reselection is the time unit in FIG. 5 above. time slot n;
该第一终端触发对已选资源进行再评估的时间单元,例如,该第一终端触发对已选资源进行再评估的时间单元为上述图6中的时隙m-T
3;
The time unit in which the first terminal triggers the re-evaluation of the selected resource, for example, the time unit in which the first terminal triggers the re-evaluation of the selected resource is the time slot mT 3 in the above-mentioned FIG. 6 ;
该第一终端触发对已选资源进行再评估的时间单元与N2个时间单元的差值,N2为正整数,例如,该第一终端触发对已选资源进行再评估的时间单元为上述图6中的时隙m-T
3;
The difference between the time unit at which the first terminal triggers re-evaluation of the selected resource and N2 time units, where N2 is a positive integer, for example, the time unit at which the first terminal triggers the re-evaluation of the selected resource is the above-mentioned FIG. 6 time slot mT 3 in ;
该第一终端触发对已选资源是否被其他终端抢占的判断的时间单元,例如,该第一终端触发对已选资源是否被其他终端抢占的判断的时间单元为上述图7中的时隙m-T
3;
The time unit in which the first terminal triggers the judgment on whether the selected resource is preempted by other terminals, for example, the time unit in which the first terminal triggers the judgment on whether the selected resource is preempted by other terminals is the time slot mT in the above-mentioned FIG. 7 3 ;
该第一终端触发对已选资源是否被其他终端抢占的判断的时间单元与N3个时间单元的差值,N3为正整数,例如,该第一终端触发对已选资源是否被其他终端抢占的判断的时间单元为上述图7中的时隙m-T
3。
The difference between the time unit when the first terminal triggers the judgment on whether the selected resource is preempted by other terminals and N3 time units, where N3 is a positive integer, for example, the first terminal triggers the judgment on whether the selected resource is preempted by other terminals. The determined time unit is the time slot mT 3 in the above-mentioned FIG. 7 .
可选地,N1为预配置或协议约定的;或者,Optionally, N1 is pre-configured or agreed in a protocol; or,
N1为网络设备配置或指示的;或者,N1 is configured or indicated by the network device; or,
N1为基于终端实现确定的。N1 is determined based on the terminal implementation.
可选地,N2为预配置或协议约定的;或者,Optionally, N2 is pre-configured or agreed in a protocol; or,
N2为网络设备配置或指示的;或者,N2 is configured or indicated by the network device; or,
N2为基于终端实现确定的。N2 is determined based on the terminal implementation.
可选地,N3为预配置或协议约定的;或者,Optionally, N3 is pre-configured or agreed in a protocol; or,
N3为网络设备配置或指示的;或者,N3 is configured or indicated by the network device; or,
N3为基于终端实现确定的。N3 is determined based on the terminal implementation.
可选地,在第一条件中,第一阈值至第十阈值中的部分或者全部阈值为预配置或协议约定的;或者,第一阈值至第十阈值中的部分或者全部阈值为网络设备配置或指示的;或者,第一阈值至第十阈值中的部分或者全部阈值为基于终端实现确定的。Optionally, in the first condition, some or all of the thresholds from the first threshold to the tenth threshold are pre-configured or agreed in the protocol; or, some or all of the thresholds from the first threshold to the tenth threshold are configured by the network device. or indicated; or, some or all of the thresholds from the first threshold to the tenth threshold are determined based on the implementation of the terminal.
需要说明的是,上述第一条件中的各个因素在不冲突的前提下,可以任意组合,本申请对此并不限定。It should be noted that each factor in the above-mentioned first condition can be combined arbitrarily on the premise of not conflicting, which is not limited in the present application.
可选地,在一些实施例中,该第一信息至少包括第一SL-RSRP阈值组或第一SL-RSRP阈值。也即,该第一信息至少包括一个或一组SL-RSRP阈值。Optionally, in some embodiments, the first information includes at least a first SL-RSRP threshold group or a first SL-RSRP threshold. That is, the first information includes at least one or a group of SL-RSRP thresholds.
可选地,该第一SL-RSRP阈值为第一SL-RSRP阈值组中的最大值;或者,Optionally, the first SL-RSRP threshold is the maximum value in the first SL-RSRP threshold group; or,
该第一SL-RSRP阈值为第一SL-RSRP阈值组中的最小值;或者,The first SL-RSRP threshold is the minimum value in the first SL-RSRP threshold group; or,
该第一SL-RSRP阈值为第一SL-RSRP阈值组中的平均值。The first SL-RSRP threshold is an average value in the first SL-RSRP threshold group.
可选地,该第一SL-RSRP阈值组包括以下之一:Optionally, the first SL-RSRP threshold group includes one of the following:
该第一终端根据待发送数据的优先级确定的全部SL-RSRP阈值;All SL-RSRP thresholds determined by the first terminal according to the priority of the data to be sent;
该第一终端根据待发送数据的优先级和大于优先级门限值的优先级确定的SL-RSRP阈值;the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority greater than the priority threshold;
该第一终端根据待发送数据的优先级和小于优先级门限值的优先级确定的SL-RSRP阈值;the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority less than the priority threshold;
第二SL-RSRP阈值组中的每个SL-RSRP阈值增加或减少L分贝(dB)的偏移量所构成的一组SL-RSRP阈值。Each SL-RSRP threshold in the second set of SL-RSRP thresholds increases or decreases a set of SL-RSRP thresholds by an offset of L decibels (dB).
例如,该第一SL-RSRP阈值组包括:该第一终端根据待发送数据的优先级确定的全部SL-RSRP阈值,例如上述表1中的某一行。考虑到该第一终端可能多次提升SL-RSRP阈值,该第一SL-RSRP阈值组包括:SL-RSRP阈值未提升或SL-RSRP阈值最后一次提升后,该第一终端根据自身待发送数据的优先级确定的全部SL-RSRP阈值。或者说,该第一SL-RSRP阈值组包括:该第一终端根据自身待发送数据的优先级和所有可能的优先级确定的SL-RSRP阈值。For example, the first SL-RSRP threshold group includes: all SL-RSRP thresholds determined by the first terminal according to the priorities of the data to be sent, such as a certain row in Table 1 above. Considering that the first terminal may raise the SL-RSRP threshold multiple times, the first SL-RSRP threshold group includes: after the SL-RSRP threshold is not raised or the SL-RSRP threshold is raised for the last time, the first terminal according to its own data to be sent The priority is determined by all SL-RSRP thresholds. In other words, the first SL-RSRP threshold group includes: SL-RSRP thresholds determined by the first terminal according to the priority of the data to be sent by the first terminal and all possible priorities.
又例如,该第一SL-RSRP阈值组包括:该第一终端根据自身待发送数据的优先级和大于或小于优先级门限值的优先级确定的SL-RSRP阈值。考虑到该第一终端可能多次提升SL-RSRP阈值,该第一SL-RSRP阈值组包括:SL-RSRP阈值未提升或SL-RSRP阈值最后一次提升后,该第一终端根据自身待发送数据的优先级和大于或小于优先级门限值的优先级确定的SL-RSRP阈值。For another example, the first SL-RSRP threshold group includes: the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent by the first terminal and the priority greater than or less than the priority threshold value. Considering that the first terminal may raise the SL-RSRP threshold multiple times, the first SL-RSRP threshold group includes: after the SL-RSRP threshold is not raised or the SL-RSRP threshold is raised for the last time, the first terminal according to its own data to be sent The SL-RSRP threshold determined by the priority and the priority greater or less than the priority threshold value.
可选地,该优先级门限值为预配置或协议约定的;或者,Optionally, the priority threshold value is pre-configured or agreed in a protocol; or,
该优先级门限值为网络设备配置或指示的;或者,The priority threshold is configured or indicated by the network device; or,
该优先级门限值为基于终端实现确定的。The priority threshold value is determined based on the terminal implementation.
可选地,该第二SL-RSRP阈值组包括以下之一:Optionally, the second SL-RSRP threshold group includes one of the following:
该第一终端根据待发送数据的优先级确定的全部SL-RSRP阈值;All SL-RSRP thresholds determined by the first terminal according to the priority of the data to be sent;
该第一终端根据待发送数据的优先级和大于优先级门限值的优先级确定的SL-RSRP阈值;the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority greater than the priority threshold;
该第一终端根据待发送数据的优先级和小于优先级门限值的优先级确定的SL-RSRP阈值。The first terminal determines the SL-RSRP threshold according to the priority of the data to be sent and the priority less than the priority threshold.
可选地,L为预配置或协议约定的;或者,Optionally, L is pre-configured or agreed in a protocol; or,
L为网络设备配置或指示的;或者,L is configured or indicated by the network device; or,
L为基于终端实现确定的。L is determined based on the terminal implementation.
在一些实施例中,在接收到该第一信息之后,该第二终端可以根据该第一信息构造第一资源集合。例如,该第二终端根据该第一信息中的第一RSRP阈值组或第一RSRP阈值执行上述Step 1确定候选资源集合,候选资源集合即为第一资源集合。进一步地,该第二终端将该第一资源集合发送给该第一终端。该第一终端利用该第一资源集合进行资源排除和/或资源选择。例如,该第一终端从执行完上述Step 1的候选资源集合中排除属于/不属于该第一资源集合的资源。或者该第一终端从执行完上述Step 1的候选资源集合与该第一资源集合的交集中选择资源发送数据。或者如果已选资源不在第一资源集合中,则该第一终端触发对已选资源的资源重选。In some embodiments, after receiving the first information, the second terminal may construct a first resource set according to the first information. For example, the second terminal performs Step 1 to determine the candidate resource set according to the first RSRP threshold group or the first RSRP threshold in the first information, and the candidate resource set is the first resource set. Further, the second terminal sends the first resource set to the first terminal. The first terminal uses the first resource set to perform resource exclusion and/or resource selection. For example, the first terminal excludes resources that belong to/do not belong to the first resource set from the candidate resource set that has completed the above Step 1. Or the first terminal selects resources to send data from the intersection of the candidate resource set that has completed the above Step 1 and the first resource set. Or if the selected resource is not in the first resource set, the first terminal triggers resource reselection for the selected resource.
可选地,在一些实施例中,在接收到该第一信息之后,该第二终端对第一RSRP阈值组或第一RSRP阈值增加或减少φdB,再利用该增加或减少后的RSRP阈值组或RSRP阈值确定第一资源集合。例如,先增加或减少φdB,利用该阈值组或阈值执行上述Step 1确定候选资源集合。Optionally, in some embodiments, after receiving the first information, the second terminal increases or decreases φdB for the first RSRP threshold group or the first RSRP threshold, and then uses the increased or decreased RSRP threshold group. Or the RSRP threshold determines the first resource set. For example, first increase or decrease φdB, and use the threshold group or threshold to perform the above Step 1 to determine the candidate resource set.
因此,在本申请实施例中,提供了触发终端间协作的条件,从而可以在合适时机触发终端间协作,提升存在隐蔽站、半双工等问题的场景下的侧行传输性能。Therefore, in the embodiments of the present application, conditions for triggering inter-terminal cooperation are provided, so that inter-terminal cooperation can be triggered at an appropriate time, and the sideline transmission performance in scenarios with hidden station, half-duplex and other problems can be improved.
上文结合图10,详细描述了本申请的方法实施例,下文结合图11至图14,详细描述本申请的装置实施例,应理解,装置实施例与方法实施例相互对应,类似的描述可以参照方法实施例。The method embodiments of the present application are described in detail above with reference to FIG. 10 , and the device embodiments of the present application are described in detail below with reference to FIGS. 11 to 14 . It should be understood that the device embodiments and the method embodiments correspond to each other, and similar descriptions may be See method examples.
图11示出了根据本申请实施例的终端设备300的示意性框图。如图11所示,该终端设备300为第一终端,该终端设备300包括:FIG. 11 shows a schematic block diagram of a terminal device 300 according to an embodiment of the present application. As shown in FIG. 11 , the terminal device 300 is a first terminal, and the terminal device 300 includes:
通信单元310,用于在满足第一条件的情况下,向第二终端发送第一信息,其中,该第一信息用于触发终端间协作。The communication unit 310 is configured to send first information to the second terminal when the first condition is satisfied, where the first information is used to trigger cooperation between terminals.
可选地,该第一条件包括以下至少一种:Optionally, the first condition includes at least one of the following:
该第一终端测量得到的信道繁忙率CBR大于第一阈值,或者,该第一终端测量得到的CBR小于第一阈值;The channel busy rate CBR measured by the first terminal is greater than the first threshold, or the CBR measured by the first terminal is less than the first threshold;
该第一终端测量得到的信道占用率CR大于第二阈值,或者,该第一终端测量得到的CR小于第二阈值;The channel occupancy rate CR measured by the first terminal is greater than the second threshold, or the CR measured by the first terminal is less than the second threshold;
该第一终端针对至少一个优先级测量得到的CR大于第三阈值,或者,该第一终端针对至少一个优先级测量得到的CR小于第三阈值;The CR measured by the first terminal for at least one priority is greater than the third threshold, or the CR measured by the first terminal for at least one priority is less than the third threshold;
该第一终端针对多个优先级测量得到的CR之和大于第四阈值,或者,该第一终端针对多个优先级测量得到的CR之和小于第四阈值;The sum of the CRs measured by the first terminal for multiple priorities is greater than the fourth threshold, or the sum of the CRs measured by the first terminal for multiple priorities is smaller than the fourth threshold;
该第一终端执行完基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的侧行控制信息SCI进行候选资源排除之后,候选资源集合中的资源数量大于第五阈值;After the first terminal performs the candidate resource exclusion based on the unlistened time slot and/or the candidate resource exclusion based on the sideline control information SCI sensed in the listening window, the number of resources in the candidate resource set is greater than the fifth threshold;
该第一终端执行完基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除之后,候选资源集合中的资源数量与候选资源集合中初始的资源数量的比值大于第六阈值;After the first terminal has performed the candidate resource exclusion based on the unlistened time slot and/or the candidate resource exclusion based on the SCI heard in the listening window, the number of resources in the candidate resource set is the same as the initial number in the candidate resource set. The ratio of the number of resources is greater than the sixth threshold;
该第一终端所使用的全部侧行参考信号接收功率SL-RSRP阈值大于第七阈值,或者,该第一终端所使用的部分SL-RSRP阈值大于第七阈值;The SL-RSRP threshold of all sideline reference signal received powers used by the first terminal is greater than the seventh threshold, or the partial SL-RSRP threshold used by the first terminal is greater than the seventh threshold;
该第一终端待传输数据的重传次数大于第八阈值,或者,该第一终端待传输数据的重传次数小于第八阈值;The number of retransmissions of the data to be transmitted by the first terminal is greater than the eighth threshold, or the number of retransmissions of the data to be transmitted by the first terminal is less than the eighth threshold;
该第一终端判断冲突的次数大于第九阈值,该冲突包括上行发送与侧行发送冲突、侧行发送与侧行发送冲突、侧行发送与侧行接收冲突中的至少一种;The first terminal determines that the number of conflicts is greater than the ninth threshold, and the conflict includes at least one of a conflict between uplink transmission and sideline transmission, a conflict between sideline transmission and sideline transmission, and a conflict between sideline transmission and sideline reception;
该第一终端处于目标时间单元;the first terminal is in the target time unit;
该第一终端触发了资源选择或重选;The first terminal triggers resource selection or reselection;
该第一终端触发了针对已选资源的再评估流程;The first terminal triggers the re-evaluation process for the selected resource;
该第一终端触发了针对已选资源是否被其他终端抢占的判断流程;The first terminal triggers a process of judging whether the selected resource is preempted by other terminals;
触发该第一终端重复执行基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除的阈值大于或等于第十阈值。The threshold for triggering the first terminal to repeatedly perform candidate resource exclusion based on unlistened time slots and/or candidate resource exclusion based on SCIs heard within the listening window is greater than or equal to the tenth threshold.
可选地,该至少一个优先级为预配置或协议约定的;或者,Optionally, the at least one priority is pre-configured or agreed in a protocol; or,
该至少一个优先级为网络设备配置或指示的;或者,The at least one priority is configured or indicated by the network device; or,
该至少一个优先级为基于终端实现确定的。The at least one priority is determined based on the terminal implementation.
可选地,该多个优先级为预配置或协议约定的;或者,Optionally, the multiple priorities are pre-configured or agreed in an agreement; or,
该多个优先级为网络设备配置或指示的;或者,The plurality of priorities are configured or indicated by the network device; or,
该多个优先级为基于终端实现确定的。The multiple priorities are determined based on the terminal implementation.
可选地,该多个优先级为大于目标优先级的全部优先级,或者,该多个优先级为小于目标优先级的全部优先级。Optionally, the multiple priorities are all priorities greater than the target priority, or the multiple priorities are all the priorities smaller than the target priority.
可选地,该目标优先级为取决于终端实现的一个优先级;或者,Optionally, the target priority is a priority that depends on terminal implementation; or,
该目标优先级为预配置或协议约定的;或者,The target priority is preconfigured or agreed upon by the protocol; or,
该目标优先级为网络设备配置或指示的。The target priority is configured or indicated by the network device.
可选地,该第一终端所使用的全部SL-RSRP阈值,包括:Optionally, all SL-RSRP thresholds used by the first terminal include:
该第一终端执行基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除的过程中,该第一终端根据侦听窗内侦听到的SCI携带的优先级和待发送数据的优先级确定的全部SL-RSRP阈值;或者,During the process that the first terminal performs candidate resource exclusion based on unlistened time slots and/or candidate resource exclusion based on the SCI detected in the listening window, the first terminal performs the process according to the All SL-RSRP thresholds determined by the priority carried by the SCI and the priority of the data to be sent; or,
该第一终端根据待发送数据的优先级确定的全部SL-RSRP阈值。All SL-RSRP thresholds determined by the first terminal according to the priority of the data to be sent.
可选地,该第一终端所使用的部分SL-RSRP阈值,包括:Optionally, the partial SL-RSRP threshold used by the first terminal includes:
该第一终端执行基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除的过程中,该第一终端根据侦听到的侧行控制信息携带的大于优先级门限值的优先级和待发送数据的优先级确定的SL-RSRP阈值;或者,During the process that the first terminal performs the candidate resource exclusion based on the unlistened time slot and/or the candidate resource exclusion based on the SCI sensed in the listening window, the first terminal performs the process according to the sensed sideline control information. The carried priority greater than the priority threshold and the SL-RSRP threshold determined by the priority of the data to be sent; or,
该第一终端执行基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除的过程中,该第一终端根据侦听到的侧行控制信息携带的小于优先级门限值的优先级和待发送数据的优先级确定的SL-RSRP阈值;或者,During the process that the first terminal performs the candidate resource exclusion based on the unlistened time slot and/or the candidate resource exclusion based on the SCI sensed in the listening window, the first terminal performs the process according to the sensed sideline control information. The carried priority less than the priority threshold and the SL-RSRP threshold determined by the priority of the data to be sent; or,
该第一终端根据待发送数据的优先级和大于优先级门限值的优先级确定的SL-RSRP阈值;the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority greater than the priority threshold;
该第一终端根据待发送数据的优先级和小于优先级门限值的优先级确定的SL-RSRP阈值。The first terminal determines the SL-RSRP threshold according to the priority of the data to be sent and the priority less than the priority threshold.
可选地,该目标时间单元包括以下至少一种:Optionally, the target time unit includes at least one of the following:
该第一终端触发资源选择或资源重选的时间单元;The time unit in which the first terminal triggers resource selection or resource reselection;
该第一终端触发资源选择或资源重选的时间单元与N1个时间单元的差值,N1为正整数;The difference between the time unit when the first terminal triggers resource selection or resource reselection and N1 time units, where N1 is a positive integer;
该第一终端触发对已选资源进行再评估的时间单元;The first terminal triggers a time unit for re-evaluating the selected resource;
该第一终端触发对已选资源进行再评估的时间单元与N2个时间单元的差值,N2为正整数;The first terminal triggers the difference between the time unit for re-evaluating the selected resource and N2 time units, where N2 is a positive integer;
该第一终端触发对已选资源是否被其他终端抢占的判断的时间单元;The first terminal triggers a time unit for judging whether the selected resource is preempted by other terminals;
该第一终端触发对已选资源是否被其他终端抢占的判断的时间单元与N3个时间单元的差值,N3为正整数。The difference between the time unit when the first terminal triggers the judgment on whether the selected resource is preempted by other terminals and N3 time units, where N3 is a positive integer.
可选地,N1为预配置或协议约定的;或者,Optionally, N1 is pre-configured or agreed in a protocol; or,
N1为网络设备配置或指示的;或者,N1 is configured or indicated by the network device; or,
N1为基于终端实现确定的。N1 is determined based on the terminal implementation.
可选地,N2为预配置或协议约定的;或者,Optionally, N2 is pre-configured or agreed in a protocol; or,
N2为网络设备配置或指示的;或者,N2 is configured or indicated by the network device; or,
N2为基于终端实现确定的。N2 is determined based on the terminal implementation.
可选地,N3为预配置或协议约定的;或者,Optionally, N3 is pre-configured or agreed in a protocol; or,
N3为网络设备配置或指示的;或者,N3 is configured or indicated by the network device; or,
N3为基于终端实现确定的。N3 is determined based on the terminal implementation.
可选地,该第一信息至少包括第一SL-RSRP阈值组或第一SL-RSRP阈值。Optionally, the first information includes at least a first SL-RSRP threshold group or a first SL-RSRP threshold.
可选地,该第一SL-RSRP阈值为第一SL-RSRP阈值组中的最大值;或者,Optionally, the first SL-RSRP threshold is the maximum value in the first SL-RSRP threshold group; or,
该第一SL-RSRP阈值为第一SL-RSRP阈值组中的最小值;或者,The first SL-RSRP threshold is the minimum value in the first SL-RSRP threshold group; or,
该第一SL-RSRP阈值为第一SL-RSRP阈值组中的平均值。The first SL-RSRP threshold is an average value in the first SL-RSRP threshold group.
可选地,该第一SL-RSRP阈值组包括以下之一:Optionally, the first SL-RSRP threshold group includes one of the following:
该第一终端根据待发送数据的优先级确定的全部SL-RSRP阈值;All SL-RSRP thresholds determined by the first terminal according to the priority of the data to be sent;
该第一终端根据待发送数据的优先级和大于优先级门限值的优先级确定的SL-RSRP阈值;the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority greater than the priority threshold;
该第一终端根据待发送数据的优先级和小于优先级门限值的优先级确定的SL-RSRP阈值;the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority less than the priority threshold;
第二SL-RSRP阈值组中的每个SL-RSRP阈值增加或减少L分贝的偏移量所构成的一组SL-RSRP阈值。Each SL-RSRP threshold in the second set of SL-RSRP thresholds increases or decreases a set of SL-RSRP thresholds by an offset of L decibels.
可选地,该优先级门限值为预配置或协议约定的;或者,Optionally, the priority threshold value is pre-configured or agreed in a protocol; or,
该优先级门限值为网络设备配置或指示的;或者,The priority threshold is configured or indicated by the network device; or,
该优先级门限值为基于终端实现确定的。The priority threshold value is determined based on the terminal implementation.
可选地,该第二SL-RSRP阈值组包括以下之一:Optionally, the second SL-RSRP threshold group includes one of the following:
该第一终端根据待发送数据的优先级确定的全部SL-RSRP阈值;All SL-RSRP thresholds determined by the first terminal according to the priority of the data to be sent;
该第一终端根据待发送数据的优先级和大于优先级门限值的优先级确定的SL-RSRP阈值;the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority greater than the priority threshold;
该第一终端根据待发送数据的优先级和小于优先级门限值的优先级确定的SL-RSRP阈值。The first terminal determines the SL-RSRP threshold according to the priority of the data to be sent and the priority less than the priority threshold.
可选地,L为预配置或协议约定的;或者,Optionally, L is pre-configured or agreed in a protocol; or,
L为网络设备配置或指示的;或者,L is configured or indicated by the network device; or,
L为基于终端实现确定的。L is determined based on the terminal implementation.
可选地,在一些实施例中,上述通信单元可以是通信接口或收发器,或者是通信芯片或者片上系统的输入输出接口。Optionally, in some embodiments, the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
应理解,根据本申请实施例的终端设备300可对应于本申请方法实施例中的第一终端,并且终端设备300中的各个单元的上述和其它操作和/或功能分别为了实现图10所示方法200中第一终端的相应流程,为了简洁,在此不再赘述。It should be understood that the terminal device 300 according to the embodiment of the present application may correspond to the first terminal in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of the various units in the terminal device 300 are to achieve the one shown in FIG. 10 , respectively. The corresponding process of the first terminal in the method 200 is not repeated here for brevity.
图12是本申请实施例提供的一种通信设备400示意性结构图。图12所示的通信设备400包括处理器410,处理器410可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。FIG. 12 is a schematic structural diagram of a communication device 400 provided by an embodiment of the present application. The communication device 400 shown in FIG. 12 includes a processor 410, and the processor 410 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
可选地,如图12所示,通信设备400还可以包括存储器420。其中,处理器410可以从存储器420中调用并运行计算机程序,以实现本申请实施例中的方法。Optionally, as shown in FIG. 12 , the communication device 400 may further include a memory 420 . The processor 410 may call and run a computer program from the memory 420 to implement the methods in the embodiments of the present application.
其中,存储器420可以是独立于处理器410的一个单独的器件,也可以集成在处理器410中。The memory 420 may be a separate device independent of the processor 410 , or may be integrated in the processor 410 .
可选地,如图12所示,通信设备400还可以包括收发器430,处理器410可以控制该收发器430与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。Optionally, as shown in FIG. 12 , the communication device 400 may further include a transceiver 430, and the processor 410 may control the transceiver 430 to communicate with other devices, specifically, may send information or data to other devices, or receive other Information or data sent by a device.
其中,收发器430可以包括发射机和接收机。收发器430还可以进一步包括天线,天线的数量可以为一个或多个。Among them, the transceiver 430 may include a transmitter and a receiver. The transceiver 430 may further include antennas, and the number of the antennas may be one or more.
可选地,该通信设备400具体可为本申请实施例的终端设备,并且该通信设备400可以实现本申请实施例的各个方法中由第一终端实现的相应流程,为了简洁,在此不再赘述。Optionally, the communication device 400 may specifically be the terminal device of this embodiment of the present application, and the communication device 400 may implement the corresponding process implemented by the first terminal in each method of the embodiment of the present application, which is not repeated here for brevity. Repeat.
图13是本申请实施例的装置的示意性结构图。图13所示的装置500包括处理器510,处理器510可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。FIG. 13 is a schematic structural diagram of an apparatus according to an embodiment of the present application. The apparatus 500 shown in FIG. 13 includes a processor 510, and the processor 510 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
可选地,如图13所示,装置500还可以包括存储器520。其中,处理器510可以从存储器520中调用并运行计算机程序,以实现本申请实施例中的方法。Optionally, as shown in FIG. 13 , the apparatus 500 may further include a memory 520 . The processor 510 may call and run a computer program from the memory 520 to implement the methods in the embodiments of the present application.
其中,存储器520可以是独立于处理器510的一个单独的器件,也可以集成在处理器510中。The memory 520 may be a separate device independent of the processor 510 , or may be integrated in the processor 510 .
可选地,该装置500还可以包括输入接口530。其中,处理器510可以控制该输入接口530与其他设备或芯片进行通信,具体地,可以获取其他设备或芯片发送的信息或数据。Optionally, the apparatus 500 may further include an input interface 530 . The processor 510 may control the input interface 530 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.
可选地,该装置500还可以包括输出接口540。其中,处理器510可以控制该输出接口540与其他设备或芯片进行通信,具体地,可以向其他设备或芯片输出信息或数据。Optionally, the apparatus 500 may further include an output interface 540 . The processor 510 may control the output interface 540 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.
可选地,该装置可应用于本申请实施例中的终端设备,并且该装置可以实现本申请实施例的各个方法中由第一终端实现的相应流程,为了简洁,在此不再赘述。Optionally, the apparatus may be applied to the terminal equipment in the embodiments of the present application, and the apparatus may implement the corresponding processes implemented by the first terminal in each method of the embodiments of the present application, which will not be repeated here for brevity.
可选地,本申请实施例提到的装置也可以是芯片。例如可以是系统级芯片,系统芯片,芯片系统或片上系统芯片等。Optionally, the device mentioned in the embodiment of the present application may also be a chip. For example, it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.
图14是本申请实施例提供的一种通信系统600的示意性框图。如图14所示,该通信系统600包括第一终端610和第二终端620。FIG. 14 is a schematic block diagram of a communication system 600 provided by an embodiment of the present application. As shown in FIG. 14 , the communication system 600 includes a first terminal 610 and a second terminal 620 .
其中,该第一终端610可以用于实现上述方法中由第一终端实现的相应的功能,为了简洁,在此不再赘述。The first terminal 610 may be used to implement the corresponding functions implemented by the first terminal in the foregoing method, and for brevity, details are not described herein again.
应理解,本申请实施例的处理器可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者 用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。It should be understood that the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
可以理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。应注意,本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。It can be understood that the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.
应理解,上述存储器为示例性但不是限制性说明,例如,本申请实施例中的存储器还可以是静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)等等。也就是说,本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。It should be understood that the above memory is an example but not a limitative description, for example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
本申请实施例还提供了一种计算机可读存储介质,用于存储计算机程序。Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.
可选的,该计算机可读存储介质可应用于本申请实施例中的终端设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由第一终端实现的相应流程,为了简洁,在此不再赘述。Optionally, the computer-readable storage medium can be applied to the terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the first terminal in each method of the embodiments of the present application. This will not be repeated here.
本申请实施例还提供了一种计算机程序产品,包括计算机程序指令。Embodiments of the present application also provide a computer program product, including computer program instructions.
可选的,该计算机程序产品可应用于本申请实施例中的终端设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由第一终端实现的相应流程,为了简洁,在此不再赘述。Optionally, the computer program product can be applied to the terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the first terminal in each method of the embodiments of the present application. For brevity, here No longer.
本申请实施例还提供了一种计算机程序。The embodiments of the present application also provide a computer program.
可选的,该计算机程序可应用于本申请实施例中的终端设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由第一终端实现的相应流程,为了简洁,在此不再赘述。Optionally, the computer program can be applied to the terminal device in the embodiment of the present application, and when the computer program is run on the computer, the computer executes the corresponding process implemented by the first terminal in each method of the embodiment of the present application, in order to It is concise and will not be repeated here.
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。针对这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘 等各种可以存储程序代码的介质。The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. For such understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应所述以权利要求的保护范围为准。The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
Claims (41)
- 一种无线通信的方法,其特征在于,包括:A method of wireless communication, comprising:在满足第一条件的情况下,第一终端向第二终端发送第一信息,其中,所述第一信息用于触发终端间协作。When the first condition is satisfied, the first terminal sends first information to the second terminal, where the first information is used to trigger inter-terminal cooperation.
- 如权利要求1所述的方法,其特征在于,所述第一条件包括以下至少一种:The method of claim 1, wherein the first condition comprises at least one of the following:所述第一终端测量得到的信道繁忙率CBR大于第一阈值,或者,所述第一终端测量得到的CBR小于第一阈值;The channel busy rate CBR measured by the first terminal is greater than the first threshold, or the CBR measured by the first terminal is less than the first threshold;所述第一终端测量得到的信道占用率CR大于第二阈值,或者,所述第一终端测量得到的CR小于第二阈值;The channel occupancy rate CR measured by the first terminal is greater than the second threshold, or the CR measured by the first terminal is less than the second threshold;所述第一终端针对至少一个优先级测量得到的CR大于第三阈值,或者,所述第一终端针对至少一个优先级测量得到的CR小于第三阈值;The CR measured by the first terminal for at least one priority is greater than a third threshold, or the CR measured by the first terminal for at least one priority is less than the third threshold;所述第一终端针对多个优先级测量得到的CR之和大于第四阈值,或者,所述第一终端针对多个优先级测量得到的CR之和小于第四阈值;The sum of the CRs measured by the first terminal for multiple priorities is greater than the fourth threshold, or the sum of the CRs measured by the first terminal for multiple priorities is less than the fourth threshold;所述第一终端执行完基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的侧行控制信息SCI进行候选资源排除之后,候选资源集合中的资源数量大于第五阈值;After the first terminal has performed the candidate resource exclusion based on the unlistened time slot and/or the candidate resource exclusion based on the sideline control information SCI heard in the listening window, the number of resources in the candidate resource set is greater than the number of resources in the candidate resource set. five thresholds;所述第一终端执行完基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除之后,候选资源集合中的资源数量与候选资源集合中初始的资源数量的比值大于第六阈值;After the first terminal has performed the candidate resource exclusion based on the unlistened time slot and/or the candidate resource exclusion based on the SCI heard in the listening window, the number of resources in the candidate resource set is the same as the initial value in the candidate resource set. The ratio of the number of resources is greater than the sixth threshold;所述第一终端所使用的全部侧行参考信号接收功率SL-RSRP阈值大于第七阈值,或者,所述第一终端所使用的部分SL-RSRP阈值大于第七阈值;The SL-RSRP threshold of all the sideline reference signal received powers used by the first terminal is greater than the seventh threshold, or the partial SL-RSRP threshold used by the first terminal is greater than the seventh threshold;所述第一终端待传输数据的重传次数大于第八阈值,或者,所述第一终端待传输数据的重传次数小于第八阈值;The number of retransmissions of the data to be transmitted by the first terminal is greater than the eighth threshold, or the number of retransmissions of the data to be transmitted by the first terminal is less than the eighth threshold;所述第一终端判断冲突的次数大于第九阈值,所述冲突包括上行发送与侧行发送冲突、侧行发送与侧行发送冲突、侧行发送与侧行接收冲突中的至少一种;The first terminal determines that the number of conflicts is greater than the ninth threshold, and the conflicts include at least one of conflicts between uplink transmission and sideline transmission, sideline transmission and sideline transmission conflicts, and sideline transmission and sideline reception conflicts;所述第一终端处于目标时间单元;the first terminal is in the target time unit;所述第一终端触发了资源选择或重选;the first terminal triggers resource selection or reselection;所述第一终端触发了针对已选资源的再评估流程;the first terminal triggers a re-evaluation process for the selected resource;所述第一终端触发了针对已选资源是否被其他终端抢占的判断流程;The first terminal triggers a process of judging whether the selected resource is preempted by other terminals;触发所述第一终端重复执行基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除的阈值大于或等于第十阈值。The threshold for triggering the first terminal to repeatedly perform candidate resource exclusion based on unlistened time slots and/or candidate resource exclusion based on SCIs heard within the listening window is greater than or equal to the tenth threshold.
- 如权利要求2所述的方法,其特征在于,The method of claim 2, wherein:所述至少一个优先级为预配置或协议约定的;或者,The at least one priority is pre-configured or agreed in a protocol; or,所述至少一个优先级为网络设备配置或指示的;或者,The at least one priority is configured or indicated by the network device; or,所述至少一个优先级为基于终端实现确定的。The at least one priority is determined based on terminal implementation.
- 如权利要求2所述的方法,其特征在于,The method of claim 2, wherein:所述多个优先级为预配置或协议约定的;或者,The multiple priorities are pre-configured or agreed upon in a protocol; or,所述多个优先级为网络设备配置或指示的;或者,The multiple priorities are configured or indicated by the network device; or,所述多个优先级为基于终端实现确定的。The plurality of priorities are determined based on terminal implementation.
- 如权利要求2或4所述的方法,其特征在于,The method of claim 2 or 4, wherein,所述多个优先级为大于目标优先级的全部优先级,或者,所述多个优先级为小于目标优先级的全部优先级。The multiple priorities are all priorities greater than the target priority, or the multiple priorities are all the priorities smaller than the target priority.
- 如权利要求5所述的方法,其特征在于,The method of claim 5, wherein:所述目标优先级为取决于终端实现的一个优先级;或者,The target priority is a priority that depends on terminal implementation; or,所述目标优先级为预配置或协议约定的;或者,The target priority is pre-configured or agreed in a protocol; or,所述目标优先级为网络设备配置或指示的。The target priority is configured or indicated by the network device.
- 如权利要求2所述的方法,其特征在于,所述第一终端所使用的全部SL-RSRP阈值,包括:The method of claim 2, wherein all SL-RSRP thresholds used by the first terminal include:所述第一终端执行基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除的过程中,所述第一终端根据侦听窗内侦听到的SCI携带的优先级和待发送数据的优先级确定的全部SL-RSRP阈值;或者,During the process that the first terminal performs the candidate resource exclusion based on the unlistened time slot and/or the candidate resource exclusion based on the SCI heard in the listening window, the first terminal according to the listening window All SL-RSRP thresholds determined by the priority carried by the received SCI and the priority of the data to be sent; or,所述第一终端根据待发送数据的优先级确定的全部SL-RSRP阈值。All SL-RSRP thresholds determined by the first terminal according to the priority of the data to be sent.
- 如权利要求2所述的方法,其特征在于,所述第一终端所使用的部分SL-RSRP阈值,包括:The method according to claim 2, wherein the partial SL-RSRP threshold used by the first terminal comprises:所述第一终端执行基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候 选资源排除的过程中,所述第一终端根据侦听到的侧行控制信息携带的大于优先级门限值的优先级和待发送数据的优先级确定的SL-RSRP阈值;或者,During the process that the first terminal performs candidate resource exclusion based on unlistened time slots and/or candidate resource exclusion based on the SCI heard within the listening window, the first terminal performs The priority carried in the control information is greater than the priority threshold and the SL-RSRP threshold determined by the priority of the data to be sent; or,所述第一终端执行基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除的过程中,所述第一终端根据侦听到的侧行控制信息携带的小于优先级门限值的优先级和待发送数据的优先级确定的SL-RSRP阈值;或者,During the process that the first terminal performs candidate resource exclusion based on unlistened time slots and/or candidate resource exclusion based on the SCI heard within the listening window, the first terminal performs The priority carried in the control information is less than the priority threshold and the SL-RSRP threshold determined by the priority of the data to be sent; or,所述第一终端根据待发送数据的优先级和大于优先级门限值的优先级确定的SL-RSRP阈值;the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority greater than the priority threshold;所述第一终端根据待发送数据的优先级和小于优先级门限值的优先级确定的SL-RSRP阈值。The first terminal determines the SL-RSRP threshold according to the priority of the data to be sent and the priority less than the priority threshold.
- 如权利要求2所述的方法,其特征在于,所述目标时间单元包括以下至少一种:The method of claim 2, wherein the target time unit comprises at least one of the following:所述第一终端触发资源选择或资源重选的时间单元;a time unit in which the first terminal triggers resource selection or resource reselection;所述第一终端触发资源选择或资源重选的时间单元与N1个时间单元的差值,N1为正整数;the difference between the time unit when the first terminal triggers resource selection or resource reselection and N1 time units, where N1 is a positive integer;所述第一终端触发对已选资源进行再评估的时间单元;the first terminal triggers a time unit for re-evaluating the selected resource;所述第一终端触发对已选资源进行再评估的时间单元与N2个时间单元的差值,N2为正整数;the difference between the time unit that is triggered by the first terminal to re-evaluate the selected resource and N2 time units, where N2 is a positive integer;所述第一终端触发对已选资源是否被其他终端抢占的判断的时间单元;a time unit for the first terminal to trigger the judgment on whether the selected resource is preempted by other terminals;所述第一终端触发对已选资源是否被其他终端抢占的判断的时间单元与N3个时间单元的差值,N3为正整数。The difference between the time unit when the first terminal triggers the judgment on whether the selected resource is preempted by other terminals and N3 time units, where N3 is a positive integer.
- 如权利要求9所述的方法,其特征在于,The method of claim 9, wherein:N1为预配置或协议约定的;或者,N1 is pre-configured or agreed in the protocol; or,N1为网络设备配置或指示的;或者,N1 is configured or indicated by the network device; or,N1为基于终端实现确定的。N1 is determined based on the terminal implementation.
- 如权利要求9所述的方法,其特征在于,The method of claim 9, wherein:N2为预配置或协议约定的;或者,N2 is pre-configured or agreed upon by the protocol; or,N2为网络设备配置或指示的;或者,N2 is configured or indicated by the network device; or,N2为基于终端实现确定的。N2 is determined based on the terminal implementation.
- 如权利要求9所述的方法,其特征在于,The method of claim 9, wherein:N3为预配置或协议约定的;或者,N3 is pre-configured or agreed upon by the protocol; or,N3为网络设备配置或指示的;或者,N3 is configured or indicated by the network device; or,N3为基于终端实现确定的。N3 is determined based on the terminal implementation.
- 如权利要求1至12中任一项所述的方法,其特征在于,所述第一信息至少包括第一SL-RSRP阈值组或第一SL-RSRP阈值。The method according to any one of claims 1 to 12, wherein the first information includes at least a first SL-RSRP threshold group or a first SL-RSRP threshold.
- 如权利要求13所述的方法,其特征在于,The method of claim 13, wherein:所述第一SL-RSRP阈值为第一SL-RSRP阈值组中的最大值;或者,The first SL-RSRP threshold is the maximum value in the first SL-RSRP threshold group; or,所述第一SL-RSRP阈值为第一SL-RSRP阈值组中的最小值;或者,The first SL-RSRP threshold is the minimum value in the first SL-RSRP threshold group; or,所述第一SL-RSRP阈值为第一SL-RSRP阈值组中的平均值。The first SL-RSRP threshold is an average value in the first SL-RSRP threshold group.
- 如权利要求13或14所述的方法,其特征在于,所述第一SL-RSRP阈值组包括以下之一:The method of claim 13 or 14, wherein the first SL-RSRP threshold group includes one of the following:所述第一终端根据待发送数据的优先级确定的全部SL-RSRP阈值;All SL-RSRP thresholds determined by the first terminal according to the priority of the data to be sent;所述第一终端根据待发送数据的优先级和大于优先级门限值的优先级确定的SL-RSRP阈值;the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority greater than the priority threshold;所述第一终端根据待发送数据的优先级和小于优先级门限值的优先级确定的SL-RSRP阈值;the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority less than the priority threshold;第二SL-RSRP阈值组中的每个SL-RSRP阈值增加或减少L分贝的偏移量所构成的一组SL-RSRP阈值。Each SL-RSRP threshold in the second set of SL-RSRP thresholds is a set of SL-RSRP thresholds formed by increasing or decreasing an offset of L decibels.
- 如权利要求8或15所述的方法,其特征在于,The method of claim 8 or 15, wherein,所述优先级门限值为预配置或协议约定的;或者,The priority threshold value is pre-configured or agreed in a protocol; or,所述优先级门限值为网络设备配置或指示的;或者,The priority threshold value is configured or indicated by the network device; or,所述优先级门限值为基于终端实现确定的。The priority threshold value is determined based on terminal implementation.
- 如权利要求15所述的方法,其特征在于,所述第二SL-RSRP阈值组包括以下之一:The method of claim 15, wherein the second SL-RSRP threshold group comprises one of the following:所述第一终端根据待发送数据的优先级确定的全部SL-RSRP阈值;All SL-RSRP thresholds determined by the first terminal according to the priority of the data to be sent;所述第一终端根据待发送数据的优先级和大于优先级门限值的优先级确定的SL-RSRP阈值;the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority greater than the priority threshold;所述第一终端根据待发送数据的优先级和小于优先级门限值的优先级确定的SL-RSRP阈值。The first terminal determines the SL-RSRP threshold according to the priority of the data to be sent and the priority less than the priority threshold.
- 如权利要求15所述的方法,其特征在于,The method of claim 15, wherein:L为预配置或协议约定的;或者,L is pre-configured or agreed in the protocol; or,L为网络设备配置或指示的;或者,L is configured or indicated by the network device; or,L为基于终端实现确定的。L is determined based on the terminal implementation.
- 一种终端设备,其特征在于,所述终端设备为第一终端,所述终端设备包括:A terminal device, characterized in that the terminal device is a first terminal, and the terminal device includes:通信单元,用于在满足第一条件的情况下,向第二终端发送第一信息,其中,所述第一信息用于触发终端间协作。The communication unit is configured to send first information to the second terminal when the first condition is satisfied, where the first information is used to trigger cooperation between terminals.
- 如权利要求19所述的终端设备,其特征在于,所述第一条件包括以下至少一种:The terminal device according to claim 19, wherein the first condition includes at least one of the following:所述第一终端测量得到的信道繁忙率CBR大于第一阈值,或者,所述第一终端测量得到的CBR小于第一阈值;The channel busy rate CBR measured by the first terminal is greater than the first threshold, or the CBR measured by the first terminal is less than the first threshold;所述第一终端测量得到的信道占用率CR大于第二阈值,或者,所述第一终端测量得到的CR小于第二阈值;The channel occupancy rate CR measured by the first terminal is greater than the second threshold, or the CR measured by the first terminal is less than the second threshold;所述第一终端针对至少一个优先级测量得到的CR大于第三阈值,或者,所述第一终端针对至少一个优先级测量得到的CR小于第三阈值;The CR measured by the first terminal for at least one priority is greater than a third threshold, or the CR measured by the first terminal for at least one priority is less than the third threshold;所述第一终端针对多个优先级测量得到的CR之和大于第四阈值,或者,所述第一终端针对多个优先级测量得到的CR之和小于第四阈值;The sum of the CRs measured by the first terminal for multiple priorities is greater than the fourth threshold, or the sum of the CRs measured by the first terminal for multiple priorities is less than the fourth threshold;所述第一终端执行完基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的侧行控制信息SCI进行候选资源排除之后,候选资源集合中的资源数量大于第五阈值;After the first terminal has performed the candidate resource exclusion based on the unlistened time slot and/or the candidate resource exclusion based on the sideline control information SCI heard in the listening window, the number of resources in the candidate resource set is greater than the number of resources in the candidate resource set. five thresholds;所述第一终端执行完基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除之后,候选资源集合中的资源数量与候选资源集合中初始的资源数量的比值大于第六阈值;After the first terminal executes the candidate resource exclusion based on the unlistened time slot and/or the candidate resource exclusion based on the SCI detected in the listening window, the number of resources in the candidate resource set is the same as the initial value in the candidate resource set. The ratio of the number of resources is greater than the sixth threshold;所述第一终端所使用的全部侧行参考信号接收功率SL-RSRP阈值大于第七阈值,或者,所述第一终端所使用的部分SL-RSRP阈值大于第七阈值;The SL-RSRP threshold of all sideline reference signal received powers used by the first terminal is greater than the seventh threshold, or the partial SL-RSRP threshold used by the first terminal is greater than the seventh threshold;所述第一终端待传输数据的重传次数大于第八阈值,或者,所述第一终端待传输数据的重传次数小于第八阈值;The number of retransmissions of the data to be transmitted by the first terminal is greater than the eighth threshold, or the number of retransmissions of the data to be transmitted by the first terminal is less than the eighth threshold;所述第一终端判断冲突的次数大于第九阈值,所述冲突包括上行发送与侧行发送冲突、侧行发送与侧行发送冲突、侧行发送与侧行接收冲突中的至少一种;The first terminal determines that the number of times of conflict is greater than the ninth threshold, and the conflict includes at least one of a conflict between uplink transmission and sideline transmission, a conflict between sideline transmission and sideline transmission, and a conflict between sideline transmission and sideline reception;所述第一终端处于目标时间单元;the first terminal is in the target time unit;所述第一终端触发了资源选择或重选;the first terminal triggers resource selection or reselection;所述第一终端触发了针对已选资源的再评估流程;the first terminal triggers a re-evaluation process for the selected resource;所述第一终端触发了针对已选资源是否被其他终端抢占的判断流程;The first terminal triggers a process of judging whether the selected resource is preempted by other terminals;触发所述第一终端重复执行基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除的阈值大于或等于第十阈值。The threshold for triggering the first terminal to repeatedly perform candidate resource exclusion based on unlistened time slots and/or candidate resource exclusion based on SCIs heard within the listening window is greater than or equal to the tenth threshold.
- 如权利要求20所述的终端设备,其特征在于,The terminal device according to claim 20, wherein,所述至少一个优先级为预配置或协议约定的;或者,The at least one priority is pre-configured or agreed in a protocol; or,所述至少一个优先级为网络设备配置或指示的;或者,The at least one priority is configured or indicated by the network device; or,所述至少一个优先级为基于终端实现确定的。The at least one priority is determined based on terminal implementation.
- 如权利要求20所述的终端设备,其特征在于,The terminal device according to claim 20, wherein,所述多个优先级为预配置或协议约定的;或者,The multiple priorities are pre-configured or agreed upon in a protocol; or,所述多个优先级为网络设备配置或指示的;或者,The multiple priorities are configured or indicated by the network device; or,所述多个优先级为基于终端实现确定的。The plurality of priorities are determined based on terminal implementation.
- 如权利要求20或22所述的终端设备,其特征在于,The terminal device according to claim 20 or 22, wherein,所述多个优先级为大于目标优先级的全部优先级,或者,所述多个优先级为小于目标优先级的全部优先级。The multiple priorities are all priorities greater than the target priority, or the multiple priorities are all the priorities smaller than the target priority.
- 如权利要求23所述的终端设备,其特征在于,The terminal device of claim 23, wherein:所述目标优先级为取决于终端实现的一个优先级;或者,The target priority is a priority that depends on terminal implementation; or,所述目标优先级为预配置或协议约定的;或者,The target priority is pre-configured or agreed in a protocol; or,所述目标优先级为网络设备配置或指示的。The target priority is configured or indicated by the network device.
- 如权利要求20所述的终端设备,其特征在于,所述第一终端所使用的全部SL-RSRP阈值,包括:The terminal device according to claim 20, wherein all SL-RSRP thresholds used by the first terminal include:所述第一终端执行基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除的过程中,所述第一终端根据侦听窗内侦听到的SCI携带的优先级和待发送数据的优先级确定的全部SL-RSRP阈值;或者,During the process that the first terminal performs the candidate resource exclusion based on the unlistened time slot and/or the candidate resource exclusion based on the SCI detected in the listening window, the first terminal according to the listening window All SL-RSRP thresholds determined by the priority carried by the received SCI and the priority of the data to be sent; or,所述第一终端根据待发送数据的优先级确定的全部SL-RSRP阈值。All SL-RSRP thresholds determined by the first terminal according to the priority of the data to be sent.
- 如权利要求20所述的终端设备,其特征在于,所述第一终端所使用的部分SL-RSRP阈值,包括:The terminal device according to claim 20, wherein the partial SL-RSRP threshold used by the first terminal comprises:所述第一终端执行基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候 选资源排除的过程中,所述第一终端根据侦听到的侧行控制信息携带的大于优先级门限值的优先级和待发送数据的优先级确定的SL-RSRP阈值;或者,During the process that the first terminal performs candidate resource exclusion based on unlistened time slots and/or candidate resource exclusion based on the SCI heard in the listening window, the first terminal performs The priority carried in the control information is greater than the priority threshold and the SL-RSRP threshold determined by the priority of the data to be sent; or,所述第一终端执行基于未侦听的时隙进行候选资源排除和/或基于侦听窗内侦听到的SCI进行候选资源排除的过程中,所述第一终端根据侦听到的侧行控制信息携带的小于优先级门限值的优先级和待发送数据的优先级确定的SL-RSRP阈值;或者,During the process that the first terminal performs candidate resource exclusion based on unlistened time slots and/or candidate resource exclusion based on the SCI heard in the listening window, the first terminal performs The priority carried in the control information is less than the priority threshold and the SL-RSRP threshold determined by the priority of the data to be sent; or,所述第一终端根据待发送数据的优先级和大于优先级门限值的优先级确定的SL-RSRP阈值;the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority greater than the priority threshold;所述第一终端根据待发送数据的优先级和小于优先级门限值的优先级确定的SL-RSRP阈值。The first terminal determines the SL-RSRP threshold according to the priority of the data to be sent and the priority less than the priority threshold.
- 如权利要求20所述的终端设备,其特征在于,所述目标时间单元包括以下至少一种:The terminal device according to claim 20, wherein the target time unit comprises at least one of the following:所述第一终端触发资源选择或资源重选的时间单元;a time unit in which the first terminal triggers resource selection or resource reselection;所述第一终端触发资源选择或资源重选的时间单元与N1个时间单元的差值,N1为正整数;the difference between the time unit when the first terminal triggers resource selection or resource reselection and N1 time units, where N1 is a positive integer;所述第一终端触发对已选资源进行再评估的时间单元;the first terminal triggers a time unit for re-evaluating the selected resource;所述第一终端触发对已选资源进行再评估的时间单元与N2个时间单元的差值,N2为正整数;the difference between the time unit that is triggered by the first terminal to re-evaluate the selected resource and N2 time units, where N2 is a positive integer;所述第一终端触发对已选资源是否被其他终端抢占的判断的时间单元;a time unit for the first terminal to trigger the judgment on whether the selected resource is preempted by other terminals;所述第一终端触发对已选资源是否被其他终端抢占的判断的时间单元与N3个时间单元的差值,N3为正整数。The difference between the time unit when the first terminal triggers the judgment on whether the selected resource is preempted by other terminals and N3 time units, where N3 is a positive integer.
- 如权利要求27所述的终端设备,其特征在于,The terminal device of claim 27, wherein,N1为预配置或协议约定的;或者,N1 is pre-configured or agreed in the protocol; or,N1为网络设备配置或指示的;或者,N1 is configured or indicated by the network device; or,N1为基于终端实现确定的。N1 is determined based on the terminal implementation.
- 如权利要求27所述的终端设备,其特征在于,The terminal device of claim 27, wherein,N2为预配置或协议约定的;或者,N2 is pre-configured or agreed upon by the protocol; or,N2为网络设备配置或指示的;或者,N2 is configured or indicated by the network device; or,N2为基于终端实现确定的。N2 is determined based on the terminal implementation.
- 如权利要求27所述的终端设备,其特征在于,The terminal device of claim 27, wherein,N3为预配置或协议约定的;或者,N3 is pre-configured or agreed upon by the protocol; or,N3为网络设备配置或指示的;或者,N3 is configured or indicated by the network device; or,N3为基于终端实现确定的。N3 is determined based on the terminal implementation.
- 如权利要求19至30中任一项所述的终端设备,其特征在于,所述第一信息至少包括第一SL-RSRP阈值组或第一SL-RSRP阈值。The terminal device according to any one of claims 19 to 30, wherein the first information includes at least a first SL-RSRP threshold group or a first SL-RSRP threshold.
- 如权利要求31所述的终端设备,其特征在于,The terminal device of claim 31, wherein:所述第一SL-RSRP阈值为第一SL-RSRP阈值组中的最大值;或者,The first SL-RSRP threshold is the maximum value in the first SL-RSRP threshold group; or,所述第一SL-RSRP阈值为第一SL-RSRP阈值组中的最小值;或者,The first SL-RSRP threshold is the minimum value in the first SL-RSRP threshold group; or,所述第一SL-RSRP阈值为第一SL-RSRP阈值组中的平均值。The first SL-RSRP threshold is an average value in the first SL-RSRP threshold group.
- 如权利要求31或32所述的终端设备,其特征在于,所述第一SL-RSRP阈值组包括以下之一:The terminal device according to claim 31 or 32, wherein the first SL-RSRP threshold group includes one of the following:所述第一终端根据待发送数据的优先级确定的全部SL-RSRP阈值;All SL-RSRP thresholds determined by the first terminal according to the priority of the data to be sent;所述第一终端根据待发送数据的优先级和大于优先级门限值的优先级确定的SL-RSRP阈值;the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority greater than the priority threshold;所述第一终端根据待发送数据的优先级和小于优先级门限值的优先级确定的SL-RSRP阈值;the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority less than the priority threshold;第二SL-RSRP阈值组中的每个SL-RSRP阈值增加或减少L分贝的偏移量所构成的一组SL-RSRP阈值。Each SL-RSRP threshold in the second set of SL-RSRP thresholds increases or decreases a set of SL-RSRP thresholds by an offset of L decibels.
- 如权利要求26或33所述的终端设备,其特征在于,The terminal device according to claim 26 or 33, characterized in that,所述优先级门限值为预配置或协议约定的;或者,The priority threshold value is pre-configured or agreed in a protocol; or,所述优先级门限值为网络设备配置或指示的;或者,The priority threshold value is configured or indicated by the network device; or,所述优先级门限值为基于终端实现确定的。The priority threshold value is determined based on terminal implementation.
- 如权利要求33所述的终端设备,其特征在于,所述第二SL-RSRP阈值组包括以下之一:The terminal device of claim 33, wherein the second SL-RSRP threshold group includes one of the following:所述第一终端根据待发送数据的优先级确定的全部SL-RSRP阈值;All SL-RSRP thresholds determined by the first terminal according to the priority of the data to be sent;所述第一终端根据待发送数据的优先级和大于优先级门限值的优先级确定的SL-RSRP阈值;the SL-RSRP threshold determined by the first terminal according to the priority of the data to be sent and the priority greater than the priority threshold;所述第一终端根据待发送数据的优先级和小于优先级门限值的优先级确定的SL-RSRP阈值。The first terminal determines the SL-RSRP threshold according to the priority of the data to be sent and the priority less than the priority threshold.
- 如权利要求33所述的终端设备,其特征在于,The terminal device of claim 33, wherein,L为预配置或协议约定的;或者,L is pre-configured or agreed in the protocol; or,L为网络设备配置或指示的;或者,L is configured or indicated by the network device; or,L为基于终端实现确定的。L is determined based on the terminal implementation.
- 一种终端设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求1至18中任一项所述的方法。A terminal device, characterized in that it comprises: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any one of claims 1 to 18. one of the methods described.
- 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1至18中任一项所述的方法。A chip, characterized by comprising: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 18 .
- 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1至18中任一项所述的方法。A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 18.
- 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求1至18中任一项所述的方法。A computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of any one of claims 1 to 18.
- 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求1至18中任一项所述的方法。A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 1 to 18.
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