WO2022021008A1 - 确定侧行链路配置授权资源的方法和终端设备 - Google Patents

确定侧行链路配置授权资源的方法和终端设备 Download PDF

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Publication number
WO2022021008A1
WO2022021008A1 PCT/CN2020/104893 CN2020104893W WO2022021008A1 WO 2022021008 A1 WO2022021008 A1 WO 2022021008A1 CN 2020104893 W CN2020104893 W CN 2020104893W WO 2022021008 A1 WO2022021008 A1 WO 2022021008A1
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WIPO (PCT)
Prior art keywords
sideline
sfn
dual
transmission
configuration
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PCT/CN2020/104893
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English (en)
French (fr)
Inventor
赵振山
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Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2020/104893 priority Critical patent/WO2022021008A1/zh
Priority to CN202080101010.8A priority patent/CN115669119A/zh
Priority to EP20946650.7A priority patent/EP4192143A4/en
Priority to CN202310349034.0A priority patent/CN116347602A/zh
Publication of WO2022021008A1 publication Critical patent/WO2022021008A1/zh
Priority to US18/145,945 priority patent/US20230209516A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/02Selection of wireless resources by user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/40Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/40Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/46Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/25Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/115Grant-free or autonomous transmission
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/40Resource management for direct mode communication, e.g. D2D or sidelink
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/18Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the embodiments of the present application relate to the field of communications, and more particularly, to a method and a terminal device for determining a sidelink configuration authorization resource.
  • the network device can allocate the Sidelink Configured Grant (SL CG) transmission resources to the terminal device. How to accurately determine the time domain resources of the SL CG by the terminal equipment during sideline transmission is an urgent technical problem to be solved.
  • SL CG Sidelink Configured Grant
  • the embodiments of the present application provide a method and a terminal device for determining a sidelink configuration authorization resource.
  • the terminal device can accurately determine the time domain resource corresponding to the SL CG.
  • a method for determining a sidelink configuration authorization resource comprising:
  • the terminal device determines the time domain resources authorized by the first sideline configuration according to the first information, wherein,
  • the first information includes at least one of the following:
  • the period of the first sideline configuration grant corresponds to the number of time slots in the resource pool associated with the first sideline configuration grant, the average number of logical time slots used for sideline transmission in one radio frame, within the time range of dual SFN
  • 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 terminal device determines the time domain resources authorized by the first sideline configuration according to the period of the first sideline configuration authorization and the number of corresponding time slots in the resource pool associated with the first sideline configuration authorization, so that the first sideline configuration authorization
  • the authorized time domain resources are indexed in the resource pool associated with the configuration authorization of the first side row, so as to avoid the situation that a certain time slot does not belong to the resource pool associated with the configuration authorization of the first side row.
  • the terminal device determines the time domain resources authorized by the first sideline configuration in the time range of dual SFN, so as to avoid the problem that the number of logical time slots used for sideline transmission in the radio frame is different in each radio frame.
  • the terminal device determines the time domain resources authorized by the first sideline configuration according to the offset value of the target sideline transmission resource in the first sideline configuration authorization and the first sideline transmission resource in the time domain, that is, In the case that multiple sideline transmission resources are included in one period of the first sideline configuration grant, other sideline transmission resources may be determined based on the offset value.
  • FIG. 1 is a schematic diagram of inbound communication within a network coverage provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a partial network coverage sideline communication provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a network coverage outside line communication provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a unicast sideline communication provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a multicast sideline communication provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a broadcast sideline communication provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of determining a sidelink time domain resource according to an embodiment of the present application.
  • FIG. 8 is a schematic flowchart of a method for determining a sidelink configuration grant resource according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of determining sidelink time domain resources according to an embodiment of the present application.
  • FIG. 10 is another schematic diagram of determining sidelink time domain resources 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 can be a station (STATION, ST) in the WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, personal digital processing (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.
  • the sideline communication according to the network coverage of the communicating terminal, it can be divided into network coverage innerline communication, as shown in Figure 1; part of the network coverage sideline communication, as shown in Figure 2 ; and network coverage outside the line communication, as shown in Figure 3.
  • Figure 1 In the network coverage of the uplink communication, all the terminals performing the sidelink communication are within the coverage of the same base station. Therefore, the above-mentioned terminals can receive the configuration signaling of the base station and perform the sidelink based on the same sidelink configuration. communication.
  • FIG. 2 In the case of partial network coverage of sideline communication, some terminals performing sideline communication are located within the coverage of the base station, and these terminals can receive the configuration signaling of the base station, and perform sideline communication according to the configuration of the base station.
  • the terminal outside the network coverage cannot receive the configuration signaling of the base station.
  • the terminal outside the network coverage will use the pre-configuration information and the physical The information carried in the sideline broadcast channel (Physical Sidelink Broadcast Channel, PSBCH) determines the sideline configuration and performs sideline communication.
  • PSBCH Physical Sidelink Broadcast Channel
  • Figure 3 For communication outside the network coverage, all the terminals performing the lateral communication are located outside the coverage of the network, and all the terminals determine the lateral configuration according to the pre-configuration information to perform the lateral communication.
  • device-to-device communication is based on a sidelink (Sidelink, SL) transmission technology based on device to device (D2D), and the communication data in the traditional cellular system is received or sent by the base station Different ways, so it has higher spectral efficiency and lower transmission delay.
  • the Internet of Vehicles system adopts the method of terminal-to-terminal direct communication. Two transmission modes are defined in 3GPP, which are respectively recorded as Mode A and Mode B. The embodiments of the present application may be applied to Mode A and/or Mode B.
  • Mode A The transmission resources of the terminal are allocated by the base station, and the terminal sends data on the sidelink according to the resources allocated by the base station; the base station can allocate resources for a single transmission to the terminal, or can allocate semi-static transmission to the terminal. resource. As shown in FIG. 1 , the terminal is located within the coverage of the network, and the network allocates transmission resources for sideline transmission to the terminal.
  • Mode B The terminal selects a resource in the resource pool for data transmission. As shown in Figure 3, the terminal is located outside the coverage of the cell, and the terminal autonomously selects transmission resources from the preconfigured resource pool for sideline transmission; or, as shown in Figure 1, the terminal autonomously selects transmission resources from the resource pool configured by the network Perform side-by-side transfers.
  • users may be in a mixed mode, that is, they can use mode A to acquire resources, and they can use mode B to acquire resources at the same time.
  • unicast transmission there is only one terminal at the receiving end.
  • unicast transmission is performed between UE1 and UE2;
  • the receiving end is all terminals in a communication group, or at a certain All terminals within the transmission distance, as shown in Figure 5, UE1, UE2, UE3 and UE4 form a communication group, in which UE1 sends data, and other terminal devices in this group are receiver terminals;
  • the terminal is any terminal around the transmitting terminal.
  • UE1 is the transmitting terminal, and other terminals around it, UE2-UE6, are all receiving terminals.
  • a resource pool is introduced into the sideline transmission system.
  • the so-called resource pool is a collection of transmission resources. Whether it is a transmission resource configured by a network or a transmission resource independently selected by a terminal, it is a resource in the resource pool.
  • Resource pools can be configured through pre-configuration or network configuration, and one or more resource pools can be configured.
  • the resource pool is further divided into a sending resource pool and a receiving resource pool.
  • the sending resource pool is that the transmission resources in the resource pool are used for sending sideline data; the receiving resource pool is that the terminal receives the sideline data on the transmission resources in the resource pool.
  • the set of subframes in the physical sidelink shared channel (Physical Sidelink Shared Channel, PSSCH) resource pool used for mode 3 (that is, the above-mentioned mode A) or mode 4 (that is, the above-mentioned mode B) sidelink transmission can be expressed as for in,
  • the subframe index is relative to subframe #0 of the radio frame of SFN0 or DFN0 of the serving cell.
  • This set of subframes includes all subframes except the following subframes:
  • SLSS Sidelink Synchronization Signal
  • the terminal equipment determines the set of subframes allocated to the PSSCH resource pool as follows:
  • the end device Determine the time domain resources of the PSSCH resource pool
  • the resource pool is determined within a System Frame Number (SFN) or Direct Frame Number (DFN) cycle.
  • SFN cycle includes 10240 subframes, corresponding to subframes 0 and 1 respectively. ,2,...,10239 (also known as physical time slots or physical subframes); remove synchronization subframes, downlink subframes, special subframes (ie, downlink subframes and special subframes in TDD systems), and reserved subframes frame (reserved subframe), the remaining subframes are numbered as The number of remaining subframes can be divisible by L bitmap , bitmap Periodically repeats in the remaining subframes, the bit being 1 indicates that the subframe corresponding to the bit in the remaining subframes belongs to the resource pool, otherwise it does not belong to the resource pool.
  • one SFN cycle (or DFN cycle) includes 10240 subframes, the cycle of the synchronization signal is 160ms, and one synchronization cycle includes 2 synchronization subframes, so there are 128 synchronization subframes in one SFN cycle.
  • bitmap Since the bitmap needs to be repeated 1011 times in the remaining subframes to indicate whether all the subframes belong to the resource pool, and each bitmap cycle includes 3 subframes, there are 3033 subframes in one SFN cycle that belong to the resource pool. resource pool.
  • mode 1 and mode 2 resource allocation methods are supported.
  • the terminal autonomously selects transmission resources from the resource pool for sideline transmission, that is, the above-mentioned mode B; in mode 1, the network allocates sideline transmission resources to the terminal, that is, the above-mentioned mode A.
  • the network device may allocate sideline transmission resources to the terminal in a dynamic scheduling (Dynamic Scheduling, DG) manner; or the network may allocate sideline configuration authorization (SL CG) transmission resources for the terminal, or called sideline license-free transmission resource.
  • SL CG mainly includes two configuration authorization methods: the first type of sideline configuration authorization (type-1 Sidelink configured grant, type-1 SL CG) and the second type of configuration authorization (type-2 Sidelink configured grant, type-2 SL CG) ).
  • the first type of sideline configuration authorization the network device configures sideline transmission resources for the terminal through radio resource control (Radio Resource Control, RRC) signaling.
  • RRC Radio Resource Control
  • the RRC signaling configuration includes time domain resources, frequency domain resources, and demodulation reference signals ( All transmission resources and transmission parameters including Demodulation Reference Signal (DMRS), Modulation and Coding Scheme (MCS), etc.
  • DMRS Demodulation Reference Signal
  • MCS Modulation and Coding Scheme
  • the second type of lateral configuration authorization adopts a two-step resource configuration method, that is, the RRC+DCI method; first, the RRC signaling configuration includes the period, redundancy version, retransmission times, and hybrid automatic retransmission request of the time-frequency resources. (Hybrid Automatic Repeat reQuest, HARQ) process number and other transmission resources and transmission parameters, and then the DCI activates the transmission authorized by the second type of configuration, and configures other resources including time domain resources, frequency domain resources, MCS, etc. Transmission resources and transmission parameters.
  • HARQ Hybrid Automatic Repeat reQuest
  • the terminal device When the terminal device receives the RRC signaling, it cannot immediately use the resources and parameters configured by the high-level parameters for sideline transmission, but must wait for the corresponding downlink control information (Downlink Control Information, DCI) to activate the sideline configuration authorization to be received. After that, the sideline transmission can be performed.
  • DCI Downlink Control Information
  • the network can deactivate the sideline configuration authorization through DCI, and after the terminal receives the deactivated DCI, it can no longer use the sideline configuration authorization transmission resource for sideline transmission.
  • N represents the number of logical time slots that can be used for sideline transmission in the time range of 20ms
  • sl_periodCG represents the period of the SL CG configured by the network
  • numberOfSLSlotsPerFrame represents the number of logical time slots that can be used for sideline transmission in a radio frame
  • logical The slot number in the frame represents the number of logical time slots in the radio frame
  • timeReferenceSFN represents the time reference SFN
  • sl-TimeOffsetCGType1 represents the time domain offset of type-1CG
  • S represents an arbitrary integer.
  • N represents the number of logical time slots that can be used for sideline transmission in the time range of 20ms
  • sl_periodCG represents the period of the SL CG configured by the network
  • numberOfSLSlotsPerFrame represents the number of logical time slots that can be used for sideline transmission in a radio frame
  • logical slot number in the frame represents the number of logical time slots in the radio frame
  • SFN start time represents the SFN corresponding to the first PSSCH transmission opportunity in the CG resource
  • slot start time represents the corresponding SFN of the first PSSCH transmission opportunity in the CG resource
  • sl-TimeOffsetCGType1 represents the time domain offset of type-1CG
  • S represents any integer.
  • the parameter PeriodicitySL obtained by this formula includes all logical time slots available for sideline transmission (for example, corresponding to the second row in Figure 7), and SL CG is configured in a certain resource pool (for example, corresponding to Figure 7)
  • the third line), and the length of the bitmap (bitmap) used to indicate the time slot of the resource pool is any value in [10, 100], which may not be an integer multiple of the number of time slots included in the 20ms time range. Therefore, the time slot determined according to the above formula 1 and formula 2 may not belong to the resource pool associated with the SL CG, and therefore does not belong to the time domain transmission resources authorized by the sideline configuration.
  • numberOfSLSlotsPerFrame represents the number of logical time slots that can be used for sideline transmission in a radio frame, but in the formula for determining the period, it is determined with a period of 20ms, and 20ms includes two For radio frames, the number of logical time slots available for sideline transmission in each radio frame may be different. frame) includes 3 logical time slots, and includes 7 logical time slots in the last 20ms (another radio frame). At this time, the value of numberOfSLSlotsPerFrame is different in different radio frames. Determine if it is 3 or 7.
  • the network device can configure up to 3 transmission resources, and in the above formula for determining the authorized transmission resources for side-line configuration, only the first transmission in each period is considered
  • the resources namely sl-TimeOffsetCGType1 in type-1 SL CG, and SFN start time and slot start time in type-2 SL CG, do not consider the time domain position corresponding to the second or third transmission resource.
  • the present application proposes a solution for determining the authorized resources of the sidelink configuration, which can solve the above technical problems.
  • FIG. 8 is a schematic flowchart of a method 200 for determining a sidelink configuration authorization resource according to an embodiment of the present application. As shown in FIG. 8 , the method 200 may include at least part of the following contents:
  • the terminal device determines the time domain resources authorized by the first sideline configuration according to the first information, wherein,
  • the first information includes but is not limited to at least one of the following:
  • the period of the first sideline configuration grant corresponds to the number of time slots in the resource pool associated with the first sideline configuration grant, the average number of logical time slots used for sideline transmission in one radio frame, within the time range of dual SFN
  • the time range of the dual SFN may be a time range of 20 ms.
  • the first sideline configuration authorization may be a first type of sideline configuration authorization, where the first type of sideline configuration authorization is a sideline configuration authorization configured by the network device through RRC signaling.
  • first type of sideline configuration authorization is a sideline configuration authorization configured by the network device through RRC signaling.
  • the first sideline configuration authorization may also be a second type of sideline configuration authorization, where the second type of sideline configuration authorization is a sideline configuration authorization configured by the network device through RRC signaling and activated by DCI.
  • the second type of sideline configuration authorization is a sideline configuration authorization configured by the network device through RRC signaling and activated by DCI.
  • the first information includes the number of time slots corresponding to the period of the first sideline configuration grant in the resource pool associated with the first sideline configuration grant. That is, the terminal device may determine the time domain resources authorized by the first sideline configuration according to the number of corresponding time slots in the resource pool associated with the first sideline configuration grant according to the period of the first sideline configuration grant.
  • the number of time slots corresponding to the period of the first sideline configuration grant in the resource pool associated with the first sideline configuration grant is determined by at least one of the following information:
  • the total length of the bitmap used to configure the time domain resources of the resource pool, the number of the first value taken in the bitmap used to configure the time domain resources of the resource pool, and the first side of the network device configuration configures the authorization period.
  • the value of the resource pool associated with the first side row configuration authorization in the bitmap is the first value.
  • the first value is 1.
  • the number of time slots corresponding to the period of the first sideline configuration grant in the resource pool associated with the first sideline configuration grant can be obtained by the following formula 3.
  • N represents the number of logical time slots that can be used for sideline transmission in the time range of 20ms
  • sl_periodCG represents the period of the first sideline configuration authorization of the network configuration
  • k represents the bitmap used to configure the time domain resources of the resource pool The value is 1 in the middle
  • L represents the total length of the bitmap used to configure the time domain resources of the resource pool.
  • the terminal device can obtain PeriodicitySL based on Equation 3.
  • the terminal device substitutes the PeriodicitySL obtained by formula 3 into the above formula 1 to determine the first side row. line to configure authorized time domain resources.
  • the terminal device substitutes the PeriodicitySL obtained by formula 3 into the above formula 2 to determine the first sideline configuration authorization Configure authorized time domain resources.
  • time slot A+PeriodicitySL also belongs to the resource pool corresponding to the first side row configuration grant, and is also one of the first side row configuration grants line to configure authorized transport opportunities.
  • the length of the bitmap used to configure the time domain resources of the resource pool is 15 bits, and a 1 is set for every 3 bits, that is, every 15 time slots available for sideline transmission includes 5 time slots belonging to the resource pool,
  • the first sideline configuration authorization is associated with the resource pool.
  • the first sideline configuration authorization is the first type of sideline configuration authorization (type-1 SL CG)
  • the period of the first sideline configuration authorization is 20ms
  • the slot 20) does not belong to the time domain transmission resource corresponding to the first sideline configuration grant, that is, it is not the available transmission resource of the first sideline configuration grant.
  • the determined time-domain resources authorized by the first sideline configuration are time slots 0 and 30, and the interval between two adjacent time-domain resources authorized by the first sideline configuration is 30 time slots, that is, 30ms, which is much larger than the network
  • the first side row configuration authorization period of the device configuration is 10ms.
  • the logical time slots 0, 12, 24, and 36 in the transmission time slot set that is, the interval between two adjacent time domain resources authorized by the first side row configuration is 12 time slots, as shown in Figure 10, which is closer to The real period value (10ms) configured by the network device.
  • Example 1 the period of the first sideline configuration authorization configured by the network device is converted into the period of the first sideline configuration authorization by the above formula 3, and the corresponding number of time slots in the resource pool associated with the first sideline configuration authorization , so that the time slot belonging to the first side line configuration authorization is determined in its associated resource pool in the transmission resource determination formula of the first side line configuration authorization, so as to avoid the occurrence of a certain time slot that does not belong to the first side line configuration authorization association of the resource pool.
  • the first information includes an average number of logical time slots used for sideline transmission in one radio frame. That is, the terminal device may determine the time domain resources granted by the first sideline configuration according to the average number of logical time slots used for sideline transmission in the one radio frame.
  • the average number of logical time slots for sideline transmission in the one radio frame includes:
  • averagenumberOfSLSlotsPerFrame represents the average number of logical time slots used for sideline transmission in a radio frame
  • numberOfSLSlotsFirstFrame represents the number of logical time slots used for sideline transmission in the first radio frame within the time range of the dual SFN
  • numberOfSLSlotsSecondFrame represents The number of logical time slots used for sideline transmission in the second radio frame within the time range of the dual SFN.
  • Example 2 the numberOfSLSlotsPerFrame in the above formulas 1 and 2 is replaced with averagenumberOfSLSlotsPerFrame, and the time domain resources authorized by the first side row configuration can be determined.
  • Example 2 the average number of logical time slots for sideline transmission in one radio frame is used to determine the time domain resources granted by the first sideline configuration, avoiding the problem that the numberOfSLSlotsPerFrame is different in each radio frame.
  • the first information includes: SFN information within the time range of the dual SFN, logical time slot information within the time range of the dual SFN, and time domain offset within the time range of the dual SFN. That is, in Example 3, the terminal device may, according to the SFN information in the time range of the dual SFN, the logical time slot information in the time range of the dual SFN, and the time domain offset in the time range of the dual SFN, Determine the time domain resources authorized by the first side row configuration.
  • the SFN information within the time range of the dual SFN includes at least one of the following:
  • the SFN index in the time range of the dual SFN the reference SFN index used for determining the time domain offset in the time range of the dual SFN, and the index of the dual SFN corresponding to the first transmission opportunity in the first side row configuration grant.
  • the logical time slot information within the time range of the dual SFN includes at least one of the following:
  • the number of logical time slots used for sideline transmission within the time range of the dual SFN, the index of the logical time slots used for sideline transmission within the time range of the dual SFN, the first transmission opportunity in the first sideline configuration grant corresponds to The index of the logical slot within the time range of the dual SFN.
  • the time domain offset within the time range of the dual SFN includes one of the following:
  • the terminal device may determine the first sideline configuration based on the following formula 5: Authorized time domain resource.
  • DoubleSFN represents the SFN index within the time range of double SFN.
  • the index range of SFN is [0,1023], that is, 1024 radio frames are included in 10240ms
  • the index range of DoubleSFN is [0,511]
  • numberOfSLSlotsPerDoubleFrame represents the number of logical time slots used for sideline transmission within the time range of double SFN
  • logical slot number in the double frame represents the index of the logical time slot used for sideline transmission within the time range of dual SFN
  • sl-TimeOffsetCGType1 represents The time domain offset within the time range of the double SFN
  • timeReferenceDoubleSFN represents the reference SFN index used to determine the time domain offset within the time range of the double SFN
  • S is an arbitrary integer
  • N represents the number of logical time slots that can be used for sideline transmission within the time range of the dual SFN
  • sl_periodCG represents the period of the first sideline configuration grant of the network configuration
  • the terminal device may determine the first sideline configuration based on the following formula 6: Authorized time domain resource.
  • DoubleSFN represents the SFN index within the time range of double SFN, for example, the index range of SFN is [0, 1023], that is, 1024 radio frames are included in 10240ms, and the index range of DoubleSFN is [0, 511]; numberOfSLSlotsPerDoubleFrame represents the number of logical time slots used for sideline transmission within the time range of double SFN; logical slot number in the double frame represents the index of the logical time slot used for sideline transmission within the time range of double SFN; DoubleSFN start time represents The index of the dual SFN corresponding to the first transmission opportunity in the first sideline configuration grant; slot start time represents the index of the logical time slot within the time range of the dual SFN corresponding to the first transmission opportunity in the first sideline configuration grant; S is any integer; or, N represents the number of logical time slots that can be used for sideline transmission within the time range of the dual SFN, sl_periodCG represents the period of the first sideline configuration grant of
  • Example 3 the time domain resources authorized by the first sideline configuration are determined in the time range of the dual SFN, which avoids the problem that the numberOfSLSlotsPerFrame is different in each radio frame.
  • the first information includes an offset value in the time domain between the target sideline transmission resource in the first sideline configuration grant and the first sideline transmission resource. That is, the terminal device may determine the time domain of the first sideline configuration authorization according to the offset value in the time domain between the target sideline transmission resource and the first sideline transmission resource in the first sideline configuration authorization resource.
  • the terminal device may determine the first sideline configuration based on the following formula 7: Authorized time domain resource.
  • N represents the number of logical time slots that can be used for sideline transmission in the time range of 20ms
  • sl_periodCG represents the period of the SL CG configured by the network
  • k represents the value of 1 in the bitmap used to configure the time domain resources of the resource pool.
  • Number, L represents the total length of the bitmap used to configure the time domain resources of the resource pool
  • numberOfSLSlotsPerFrame represents the number of logical time slots that can be used for sideline transmission in a radio frame
  • logical slot number in the frame represents the logical slot in the radio frame.
  • timeReferenceSFN represents the time reference SFN
  • sl-TimeOffsetCGType1 represents the time domain offset of type-1CG
  • T represents the target sideline transmission resource in the first sideline configuration grant and the first sideline transmission resource in the time domain Offset value on ;
  • S represents any integer.
  • the terminal device may determine the first sideline configuration based on the following formula 8: Authorized time domain resource.
  • N represents the number of logical time slots that can be used for sideline transmission in the time range of 20ms
  • sl_periodCG represents the period of the SL CG configured by the network
  • k represents the value of 1 in the bitmap used to configure the time domain resources of the resource pool.
  • Number, L represents the total length of the bitmap used to configure the time domain resources of the resource pool
  • numberOfSLSlotsPerFrame represents the number of logical time slots that can be used for sideline transmission in a radio frame
  • logical slot number in the frame represents the logical slot in the radio frame.
  • SFN start time represents the SFN corresponding to the first PSSCH transmission opportunity in the CG resource
  • slot start time represents the logical time slot corresponding to the first PSSCH transmission opportunity in the CG resource
  • sl-TimeOffsetCGType1 represents the type The time domain offset of -1CG
  • T represents the offset value of the target sideline transmission resource in the first sideline configuration grant and the first sideline transmission resource in the time domain
  • S represents an arbitrary integer.
  • a sideline transmission resource is the same resource.
  • the time slots corresponding to the two sideline transmission resources are t1 and t2 respectively, that is, the target sideline transmission resource is the second sideline transmission resource.
  • T t2-t1
  • the time slot t2 corresponding to the target sideline transmission resource can be determined based on T.
  • the time slots corresponding to the three sideline transmission resources are t1, t2 and t3 respectively.
  • the terminal device determines the time domain of the first sideline configuration grant according to the offset value in the time domain between the target sideline transmission resource and the first sideline transmission resource in the first sideline configuration grant
  • the resource that is, in the case that a period of the first sideline configuration grant includes multiple sideline transmission resources, other sideline transmission resources may be determined based on the offset value.
  • the value of the resource pool associated with the first side row configuration authorization is 1 in the bitmap used to configure the time domain resources of the resource pool.
  • the terminal device may determine the time domain resources authorized by the first sideline configuration in combination with the solutions in the above four examples.
  • the terminal device may determine the time domain resources authorized by the first sideline configuration in combination with the solutions in the foregoing example 1 and example 2. For example, in the case that the first sideline configuration authorization is the first type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the following formula 9. For another example, when the first sideline configuration authorization is the second type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the following formula 10.
  • the terminal device may determine the time domain resources authorized by the first sideline configuration in combination with the solutions in Example 1 and Example 3 above.
  • the terminal device may determine the time domain resources of the first sideline configuration authorization based on the above formula 5, wherein,
  • the terminal device may determine the time domain resource of the first sideline configuration authorization based on the above formula 6, wherein,
  • the terminal device may determine the time domain resources authorized by the first sideline configuration in combination with the solutions in Example 1 and Example 4 above.
  • the terminal device may determine the time domain resources of the first sideline configuration authorization based on the above formula 7, wherein,
  • the terminal device may determine the time domain resources of the first sideline configuration authorization based on the above formula 8, wherein,
  • the terminal device may determine the time domain resources authorized by the first sideline configuration in combination with the solutions in the foregoing example 2 and example 4. For example, in the case that the first sideline configuration authorization is the first type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the following formula 11. For another example, when the first sideline configuration authorization is the second type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the following formula 12.
  • the terminal device may determine the time domain resources authorized by the first sideline configuration in combination with the solutions in the foregoing example 3 and example 4. For example, in the case that the first sideline configuration authorization is the first type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the following formula 13. For another example, when the first sideline configuration authorization is the second type of sideline configuration authorization, the terminal device may determine the time domain resources of the first sideline configuration authorization based on the following formula 14.
  • T represents the offset value of the target sideline transmission resource in the first sideline configuration grant and the first sideline transmission resource in the time domain, and other parameters can refer to the relevant description in the above formula 5 , and will not be repeated here.
  • T represents the offset value of the target sideline transmission resource in the first sideline configuration grant and the first sideline transmission resource in the time domain, and other parameters can refer to the relevant description in the above formula 6 , and will not be repeated here.
  • the terminal device may determine the time domain resources authorized by the first sideline configuration in combination with the solutions in the foregoing Example 1, Example 2, and Example 4.
  • the terminal device may determine the time domain resources of the first sideline configuration authorization based on the following formula 15.
  • the terminal device may determine the time domain resources of the first sideline configuration authorization based on the following formula 16.
  • the terminal device may determine the time domain resources authorized by the first sideline configuration in combination with the solutions in Example 1, Example 3, and Example 4 above.
  • the terminal device may determine the time domain resources of the first sideline configuration authorization based on the above formula 13, where:
  • the terminal device may determine the time domain resources of the first sideline configuration authorization based on the following formula 14, where:
  • the network device may also configure at least one of the following parameters through RRC signaling:
  • the network device may also configure at least one of the following parameters through RRC signaling:
  • the index of the sideline configuration authorization (sl-ConfigIndexCG), the CS-RNTI for sideline transmission (sl-CS-RNTI), the HARQ process number for the configuration authorization (nrofHARQ-Processes), the period of the second type of sideline configuration authorization (sl-periodCG), the maximum number of times a TB can transmit using the configuration grant (CG) (sl-CG-MaxTransNumList), the second type of sideline configuration grant HARQ process offset (sl-harq-procID-offset).
  • the terminal device determines the time domain resources authorized by the first sideline configuration according to the number of time slots corresponding to the first sideline configuration authorization period in the resource pool associated with the first sideline configuration grant, so that the first sideline configuration grants
  • the time domain resources authorized by the configuration of the side row are indexed in the resource pool associated with the configuration authorization of the first side row, so as to avoid the situation that a certain time slot does not belong to the resource pool associated with the configuration authorization of the first side row.
  • the terminal device determines the time domain resources authorized by the first sideline configuration in the time range of dual SFN, so as to avoid the problem that the number of logical time slots used for sideline transmission in the radio frame is different in each radio frame.
  • the terminal device determines the time domain resources authorized by the first sideline configuration according to the offset value of the target sideline transmission resource in the first sideline configuration authorization and the first sideline transmission resource in the time domain, that is, In the case that multiple sideline transmission resources are included in one period of the first sideline configuration grant, other sideline transmission resources may be determined based on the offset value.
  • FIG. 11 shows a schematic block diagram of a terminal device 300 according to an embodiment of the present application.
  • the terminal device 300 includes:
  • the processing unit 310 is configured to determine, according to the first information, the time domain resources authorized by the first sideline configuration, wherein:
  • the first information includes at least one of the following:
  • the period of the first sideline configuration grant corresponds to the number of time slots in the resource pool associated with the first sideline configuration grant, the average number of logical time slots used for sideline transmission in one radio frame, within the time range of dual SFN
  • the number of time slots corresponding to the period of the first sideline configuration grant in the resource pool associated with the first sideline configuration grant is determined by at least one of the following information:
  • the total length of the bitmap used to configure the time domain resources of the resource pool, the number of the first value taken in the bitmap used to configure the time domain resources of the resource pool, and the first side of the network device configuration configures the authorization period.
  • the value of the resource pool associated with the first side row configuration authorization in the bitmap is the first value.
  • the first value is 1.
  • the average number of logical time slots used for sideline transmission in the one radio frame includes:
  • the SFN information within the time range of the dual SFN includes at least one of the following:
  • the SFN index in the time range of the dual SFN the reference SFN index used for determining the time domain offset in the time range of the dual SFN, and the index of the dual SFN corresponding to the first transmission opportunity in the first side row configuration grant.
  • the logical time slot information within the time range of the dual SFN includes at least one of the following:
  • the number of logical time slots used for sideline transmission within the time range of the dual SFN, the index of the logical time slots used for sideline transmission within the time range of the dual SFN, the first transmission opportunity in the first sideline configuration grant corresponds to The index of the logical slot within the time range of the dual SFN.
  • the time domain offset within the time range of the dual SFN includes one of the following:
  • the target sideline transmission resource is the second sideline transmission resource in the two sideline transmission resources.
  • the target sideline transmission resource is the second sideline transmission resource among the two sideline transmission resources, or the target sideline transmission resource is the second sideline transmission resource.
  • the target sideline transmission resource is the third sideline transmission resource among the two sideline transmission resources.
  • the first sideline configuration authorization is a first type of sideline configuration authorization, where the first type of sideline configuration authorization is a sideline configuration authorization configured by the network device through radio resource control RRC signaling; or,
  • the first sideline configuration authorization is a second type of sideline configuration authorization, where the second type of sideline configuration authorization is a sideline configuration authorization configured by the network device through RRC signaling and activated through downlink control information DCI.
  • the above-mentioned processing unit may be one or more processors.
  • terminal device 300 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 300 are respectively for realizing the method shown in FIG. 8 .
  • the corresponding process of the terminal device in 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 network device in this embodiment of the present application, and the communication device 400 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For the sake of brevity, details are not repeated here. .
  • the communication device 400 may specifically be the mobile terminal/terminal device in the embodiments of the present application, and the communication device 400 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method in the embodiments of the present application. , and will not be repeated here.
  • 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 can be applied to the network equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application, which are not repeated here for brevity.
  • the apparatus can be applied to the mobile terminal/terminal equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the mobile terminal/terminal equipment in each method of the embodiments of the present application.
  • the apparatus can implement the corresponding processes implemented by the mobile terminal/terminal equipment in each method of the embodiments of the present application.
  • the apparatus can implement the corresponding processes implemented by the mobile terminal/terminal equipment in each method of the embodiments of the present application.
  • 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 terminal device 610 and a network device 620 .
  • the terminal device 610 can be used to implement the corresponding functions implemented by the terminal device in the above method
  • the network device 620 can be used to implement the corresponding functions implemented by the network device in the above method. For brevity, details are not repeated here. .
  • 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 may be directly embodied as 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 random access memory
  • SRAM 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 network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application.
  • the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. , and are not repeated here for brevity.
  • Embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. Repeat.
  • the computer program product can be applied to the mobile terminal/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 mobile terminal/terminal device in each method of the embodiments of the present application, For brevity, details are not repeated here.
  • the embodiments of the present application also provide a computer program.
  • the computer program can be applied to the network device in the embodiments of the present application.
  • the computer program When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity. , and will not be repeated here.
  • the computer program may be applied to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program is run on the computer, the mobile terminal/terminal device implements the various methods of the computer program in the embodiments of the present application.
  • the corresponding process for the sake of brevity, 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

本申请实施例提供了一种确定侧行链路配置授权资源的方法和终端设备,在需要进行侧行传输时,终端设备能够准确确定SL CG对应的时域资源。该确定侧行链路配置授权资源的方法包括:终端设备根据第一信息确定第一侧行配置授权的时域资源,其中,该第一信息包括以下中的至少一种:该第一侧行配置授权的周期在该第一侧行配置授权关联的资源池内对应的时隙数量,一个无线帧中用于侧行传输的逻辑时隙的平均数量,双SFN的时间范围内的SFN信息,双SFN的时间范围内的逻辑时隙信息,双SFN的时间范围内的时域偏移,该第一侧行配置授权中的目标侧行传输资源与第一个侧行传输资源在时域上的偏移值。

Description

确定侧行链路配置授权资源的方法和终端设备 技术领域
本申请实施例涉及通信领域,并且更具体地,涉及一种确定侧行链路配置授权资源的方法和终端设备。
背景技术
在新空口车辆到其他设备(New Radio Vehicle to Everything,NR-V2X)***中,网络设备可以为终端设备分配侧行链路配置授权(Sidelink Configured Grant,SL CG)传输资源,然而,在需要进行侧行传输时,终端设备如何准确确定SL CG的时域资源,是一个亟待解决的技术问题。
发明内容
本申请实施例提供了一种确定侧行链路配置授权资源的方法和终端设备,在需要进行侧行传输时,终端设备能够准确确定SL CG对应的时域资源。
第一方面,提供了一种确定侧行链路配置授权资源的方法,该方法包括:
终端设备根据第一信息确定第一侧行配置授权的时域资源,其中,
该第一信息包括以下中的至少一种:
该第一侧行配置授权的周期在该第一侧行配置授权关联的资源池内对应的时隙数量,一个无线帧中用于侧行传输的逻辑时隙的平均数量,双SFN的时间范围内的SFN信息,双SFN的时间范围内的逻辑时隙信息,双SFN的时间范围内的时域偏移,该第一侧行配置授权中的目标侧行传输资源与第一个侧行传输资源在时域上的偏移值。
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。
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。
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。
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。
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。
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。
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。
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。
通过上述技术方案,终端设备根据第一侧行配置授权的周期在第一侧行配置授权关联的资源池内对应的时隙数量确定第一侧行配置授权的时域资源,从而第一侧行配置授权的时域资源在第一侧行配置授权关联的资源池中进行索引,避免出现某个时隙不属于第一侧行配置授权关联的资源池的情况。
或者,终端设备以双SFN的时间范围确定第一侧行配置授权的时域资源,避免无线帧中用于侧行传输的逻辑时隙的数量在每个无线帧内的数量不同的问题。
或者,终端设备根据第一侧行配置授权中的目标侧行传输资源与第一个侧行传输资源在时域上的偏移值,确定第一侧行配置授权的时域资源,也即,在第一侧行配置授权的一个周期内包括多个侧行传输资源的情况下,可以基于偏移值确定其他侧行传输资源。
附图说明
图1是本申请实施例提供的一种网络覆盖范围内侧行通信的示意性图。
图2是本申请实施例提供的一种部分网络覆盖侧行通信的示意性图。
图3是本申请实施例提供的一种网络覆盖外侧行通信的示意性图。
图4是本申请实施例提供的一种单播侧行通信的示意性图。
图5是本申请实施例提供的一种组播侧行通信的示意性图。
图6是本申请实施例提供的一种广播侧行通信的示意性图。
图7是本申请实施例提供的一种确定侧行链路时域资源的示意性图。
图8是根据本申请实施例提供的一种确定侧行链路配置授权资源的方法的示意性流程图。
图9是根据本申请实施例提供的一种确定侧行链路时域资源的示意性图。
图10是根据本申请实施例提供的另一种确定侧行链路时域资源的示意性图。
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。
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。
图13是根据本申请实施例提供的一种装置的示意性框图。
图14是根据本申请实施例提供的一种通信***的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述,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。
本申请实施例的技术方案可以应用于各种通信***,例如:全球移动通讯(Global System of Mobile communication,GSM)***、码分多址(Code Division Multiple Access,CDMA)***、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)***、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)***、先进的长期演进(Advanced long term evolution,LTE-A)***、新空口(New Radio,NR)***、NR***的演进***、非授权频谱上的LTE(LTE-based access to unlicensed spectrum,LTE-U)***、非授权频谱上的NR(NR-based access to unlicensed spectrum,NR-U)***、非地面通信网络(Non-Terrestrial Networks,NTN)***、通用移动通信***(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)***或其他通信***等。
通常来说,传统的通信***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***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***。
可选地,本申请实施例中的通信***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。
可选地,本申请实施例中的通信***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***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。
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。
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、个人数字处理(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***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。
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)。
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。
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。
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。
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。
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。
应理解,本文中术语“***”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。
应理解,在本申请的实施例中提到的“指示”可以是直接指示,也可以是间接指示,还可以是表示具有关联关系。举例说明,A指示B,可以表示A直接指示B,例如B可以通过A获取;也可以表示A间接指示B,例如A指示C,B可以通过C获取;还可以表示A和B之间具有关联关系。
在本申请实施例的描述中,术语“对应”可表示两者之间具有直接对应或间接对应的关系,也可以表示两者之间具有关联关系,也可以是指示与被指示、配置与被配置等关系。
需要说明的是,在侧行通信中,根据进行通信的终端所处的网络覆盖情况,可以分为网络覆盖内侧行通信,如图1所示;部分网络覆盖侧行通信,如图2所示;及网络覆盖外侧行通信,如图3所示。
图1:在网络覆盖内侧行通信中,所有进行侧行通信的终端均处于同一基站的覆盖范围内,从而,上述终端均可以通过接收基站的配置信令,基于相同的侧行配置进行侧行通信。
图2:在部分网络覆盖侧行通信情况下,部分进行侧行通信的终端位于基站的覆盖范围内,这部分终端能够接收到基站的配置信令,而且根据基站的配置进行侧行通信。而位于网络覆盖范围外的终端,无法接收基站的配置信令,在这种情况下,网络覆盖范围外的终端将根据预配置(pre-configuration)信息及位于网络覆盖范围内的终端发送的物理侧行广播信道(Physical Sidelink Broadcast Channel,PSBCH)中携带的信息确定侧行配置,进行侧行通信。
图3:对于网络覆盖外侧行通信,所有进行侧行通信的终端均位于网络覆盖范围外,所有终端均根据预配置(pre-configuration)信息确定侧行配置进行侧行通信。
需要说明的是,设备到设备通信是基于终端到终端(Device to Device,D2D)的一种侧行链路(Sidelink,SL)传输技术,与传统的蜂窝***中通信数据通过基站接收或者发送的方式不同,因此具有更高的频谱效率以及更低的传输时延。车联网***采用终端到终端直接通信的方式,在3GPP定义了两种传输模式,分别记为:模式A和模式B。本申请实施例可以应用于模式A和/或模式B。
模式A:终端的传输资源是由基站分配的,终端根据基站分配的资源在侧行链路上进行数据的发送;基站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。如图1所示,终端位于网络覆盖范围内,网络为终端分配侧行传输使用的传输资源。
模式B:终端在资源池中选取一个资源进行数据的传输。如图3所示,终端位于小区覆盖范围外,终端在预配置的资源池中自主选取传输资源进行侧行传输;或者,如图1所示,终端在网络配置的资源池中自主选取传输资源进行侧行传输。
需要说明的是,在NR-V2X中,用户可能处在一个混合的模式下,即既可以使用模式A进行资源的获取,又同时可以使用模式B进行资源的获取。
在NR-V2X中,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。
在LTE-V2X中,支持广播传输方式,在NR-V2X中,引入了单播和组播的传输方式。对于单播传输,其接收端终端只有一个终端,如图4所示,UE1、UE2之间进行单播传输;对于组播传输,其 接收端是一个通信组内的所有终端,或者是在一定传输距离内的所有终端,如图5所示,UE1、UE2、UE3和UE4构成一个通信组,其中UE1发送数据,该组内的其他终端设备都是接收端终端;对于广播传输方式,其接收端是发送端终端周围的任意一个终端,如图6所示,UE1是发送端终端,其周围的其他终端,UE2-UE6都是接收端终端。
在侧行传输***中引入了资源池,所谓资源池即传输资源的集合,无论是网络配置的传输资源还是终端自主选取的传输资源,都是资源池中的资源。可以通过预配置或网络配置的方式配置资源池,可以配置一个或多个资源池。资源池又分为发送资源池和接收资源池。发送资源池即该资源池中的传输资源用于发送侧行数据;接收资源池即终端在该资源池中的传输资源上接收侧行数据。
在LTE-V2X中,物理侧行共享信道(Physical Sidelink Shared Channel,PSSCH)资源池中用于模式3(即上述模式A)或模式4(即上述模式B)侧行传输的子帧集合可以表示为
Figure PCTCN2020104893-appb-000001
其中,
Figure PCTCN2020104893-appb-000002
子帧索引相对于服务小区的SFN0或DFN0的无线帧的子帧#0。
该子帧集合包括除以下子帧外的所有子帧:
●配置有侧行同步信号(Sidelink Synchronization Signal,SLSS)资源的子帧;
●TDD***中的下行子帧和特殊子帧;
●预留子帧。
终端设备确定分配给PSSCH资源池的子帧的集合如下:
终端设备根据比特位图
Figure PCTCN2020104893-appb-000003
确定PSSCH资源池的时域资源;
如果b k'=1,子帧
Figure PCTCN2020104893-appb-000004
属于资源池。其中,k'=k mod L bitmap,比特位图的长度L bitmap由高层配置。
在LTE-V2X中,在一个***帧号(System Frame Number,SFN)或直接帧号(Direct Frame Number,DFN)周期内确定资源池,一个SFN周期包括10240个子帧,分别对应子帧0,1,2,…,10239(又称为物理时隙或物理子帧);去掉同步子帧、下行子帧、特殊子帧(即TDD***中的下行子帧和特殊子帧)、以及预留子帧(reserved subframe),剩余的子帧编号为
Figure PCTCN2020104893-appb-000005
剩余的子帧的个数能够被L bitmap整除,比特位图
Figure PCTCN2020104893-appb-000006
在剩余的子帧中周期重复,比特为1表示该比特在该剩余子帧中对应的子帧属于该资源池,否则不属于该资源池。
如图7所示,一个SFN周期(或DFN周期)包括10240个子帧,同步信号的周期是160ms,在一个同步周期内包括2个同步子帧,因此,在一个SFN周期内共有128个同步子帧,用于指示资源池时域资源的比特位图的长度是10比特,因此需要2个预留子帧(reserved subframe),剩余子帧个数是(10240-128-2=10110),可以被比特位图的长度10整除,将剩余的子帧重新编号为0,1,2,…,10109(又称为逻辑时隙或逻辑子帧),比特位图前3位为1,其余7位为0,即,在剩余子帧中,每10个子帧中的前3个子帧属于该资源池,其余的子帧不属于该资源池。由于在剩余子帧中需要比特位图重复1011次,以指示所有的子帧是否属于资源池,而在每个比特位图周期内包括3个子帧,因此在一个SFN周期共有3033个子帧属于该资源池。
在NR-V2X中,支持模式1和模式2的资源分配方式。在模式2中,终端在资源池自主选取传输资源进行侧行传输,即上述模式B;在模式1中,网络为终端分配侧行传输资源,即上述模式A。具体地,网络设备可以通过动态调度(Dynamic Scheduling,DG)的方式为终端分配侧行传输资源;或者网络可以为终端分配侧行配置授权(SL CG)传输资源,或称为侧行免授权传输资源。SL CG主要包括两种配置授权方式:第一类侧行配置授权(type-1 Sidelink configured grant,type-1 SL CG)和第二类配置授权(type-2 Sidelink configured grant,type-2 SL CG)。
第一类侧行配置授权:网络设备通过无线资源控制(Radio Resource Control,RRC)信令为终端配置侧行传输资源,该RRC信令配置包括时域资源、频域资源、解调参考信号(Demodulation Reference Signal,DMRS)、调制编码方案(Modulation and Coding Scheme,MCS)等在内的全部传输资源和传输参数。当终端设备接收到该高层参数后,可立即使用所配置的传输参数在配置的时频资源上进行侧行传输。
第二类侧行配置授权:采用两步的资源配置方式,即RRC+DCI的方式;首先,由RRC信令配置包括时频资源的周期、冗余版本、重传次数、混合自动重传请求(Hybrid Automatic Repeat reQuest,HARQ)进程数等在内的传输资源和传输参数,然后由DCI激活第二类配置授权的传输,并同时配置包括时域资源、频域资源、MCS等在内的其他传输资源和传输参数。终端设备在接收到RRC信令时,不能立即使用该高层参数配置的资源和参数进行侧行传输,而必须等接收到相应的激活该侧行配置授 权的下行控制信息(Downlink Control Information,DCI)后,才能进行侧行传输。此外,网络可以通过DCI去激活该侧行配置授权,当终端接收到去激活的DCI后,不能再使用该侧行配置授权传输资源进行侧行传输。
对于第一类侧行配置授权(type-1 SL CG),通过如下公式1确定其对应的时域资源:
[(SFN×numberOfSLSlotsPerFrame)+logical slot number in the frame]=(timeReferenceSFN×numberOfSLSlotsPerFrame+sl-TimeOffsetCGType1+S×PeriodicitySL)modulo(1024×numberOfSLSlotsPerFrame)        公式1
其中,在公式1中,
Figure PCTCN2020104893-appb-000007
N表示20ms的时间范围中可以用于侧行传输的逻辑时隙的数量,sl_periodCG表示网络配置的SL CG的周期;numberOfSLSlotsPerFrame表示一个无线帧中可以用于侧行传输的逻辑时隙的数量;logical slot number in the frame表示无线帧中逻辑时隙的数量;timeReferenceSFN表示时间参考SFN;sl-TimeOffsetCGType1表示type-1CG的时域偏移;S表示任意整数。
对于第二类侧行配置授权(type-2 SL CG),通过如下公式2确定其对应的时域资源:
[(SFN×numberOfSLSlotsPerFrame)+logical slot number in the frame]=[(SFN start time×numberOfSLSlotsPerFrame+slot start time)+S×PeriodicitySL]modulo(1024×numberOfSLSlotsPerFrame)     公式2
其中,在公式2中,
Figure PCTCN2020104893-appb-000008
N表示20ms的时间范围中可以用于侧行传输的逻辑时隙的数量,sl_periodCG表示网络配置的SL CG的周期;numberOfSLSlotsPerFrame表示一个无线帧中可以用于侧行传输的逻辑时隙的数量;logical slot number in the frame表示无线帧中逻辑时隙的数量;SFN start time表示CG资源中的第一个PSSCH传输机会所对应的SFN;slot start time表示CG资源中的第一个PSSCH传输机会所对应的逻辑时隙;sl-TimeOffsetCGType1表示type-1CG的时域偏移;S表示任意整数。
然而,在上述公式1和公式2中存在如下3个问题:
问题1,在公式1和公式2中,
Figure PCTCN2020104893-appb-000009
该公式得到的参数PeriodicitySL,包括所有可用于侧行传输的逻辑时隙(例如,对应图7中的第二行),而SL CG是配置在某个资源池中的(例如,对应图7中的第三行),而用于指示资源池时隙的比特位图(bitmap)的长度是[10,100]中的任意一个值,与20ms时间范围内包括的时隙个数可能不存在整数倍的关系,因此,按照上述公式1和公式2确定的时隙可能是不属于该SL CG所关联的资源池,因此也就不属于侧行配置授权的时域传输资源。
问题2:在上述公式1和公式2中,numberOfSLSlotsPerFrame表示一个无线帧中可以用于侧行传输的逻辑时隙的数量,但是在确定周期的公式中是以20ms为周期确定的,20ms包括2个无线帧,在每个无线帧内可用于侧行传输的逻辑时隙的个数可能是不同的,例如,20ms内包括10个可用于侧行传输的逻辑时隙,但是在前10ms(一个无线帧)内包括3个逻辑时隙,在后20ms(另一个无线帧)内包括7个逻辑时隙,此时,numberOfSLSlotsPerFrame的取值在不同的无线帧中是不同的,该如何取值,无法确定是3还是7。
问题3:对于SL CG,在每个CG周期内,网络设备可以配置最多3个传输资源,而在上述确定侧行配置授权传输资源的公式中,只考虑了每个周期内的第一个传输资源,即type-1 SL CG中的sl-TimeOffsetCGType1,以及type-2 SL CG中的SFN start time和slot start time,并没有考虑第2个或第3个传输资源所对应的时域位置。
基于上述问题,本申请提出了一种确定侧行链路配置授权资源的方案,可以解决上述技术问题。
以下通过具体实施例详述本申请的技术方案。
图8是根据本申请实施例的确定侧行链路配置授权资源的方法200的示意性流程图,如图8所示,该方法200可以包括如下内容中的至少部分内容:
S210,终端设备根据第一信息确定第一侧行配置授权的时域资源,其中,
该第一信息包括但不限于以下中的至少一种:
该第一侧行配置授权的周期在该第一侧行配置授权关联的资源池内对应的时隙数量,一个无线帧中用于侧行传输的逻辑时隙的平均数量,双SFN的时间范围内的SFN信息,双SFN的时间范围内的逻辑时隙信息,双SFN的时间范围内的时域偏移,该第一侧行配置授权中的目标侧行传输资源与第 一个侧行传输资源在时域上的偏移值。
需要说明的是,在本申请实施例中,双SFN的时间范围可以是20ms的时间范围。
可选地,该第一侧行配置授权可以是第一类侧行配置授权,其中,该第一类侧行配置授权为网络设备通过RRC信令配置的侧行配置授权。具体可以参照上述关于第一类侧行配置授权的相关描述,为了简洁,在此不再赘述。
可选地,该第一侧行配置授权也可以是第二类侧行配置授权,其中,该第二类侧行配置授权为网络设备通过RRC信令配置且通过DCI激活的侧行配置授权。具体可以参照上述关于第二类侧行配置授权的相关描述,为了简洁,在此不再赘述。
可选地,作为示例1,该第一信息包括该第一侧行配置授权的周期在该第一侧行配置授权关联的资源池内对应的时隙数量。也即,该终端设备可以根据该第一侧行配置授权的周期在该第一侧行配置授权关联的资源池内对应的时隙数量确定该第一侧行配置授权的时域资源。
可选地,在示例1中,该第一侧行配置授权的周期在该第一侧行配置授权关联的资源池内对应的时隙数量由以下信息中的至少一种确定:
用于配置资源池时域资源的比特位图的总长度,用于配置资源池时域资源的比特位图中取第一值的数量,网络设备配置的该第一侧行配置授权的周期。
可选地,该第一侧行配置授权关联的资源池在该比特位图中的取值为该第一值。
例如,该第一值为1。
可选地,在示例1中,该第一侧行配置授权的周期在该第一侧行配置授权关联的资源池内对应的时隙数量可以通过如下公式3得到。
Figure PCTCN2020104893-appb-000010
其中,N表示20ms的时间范围中可以用于侧行传输的逻辑时隙的数量,sl_periodCG表示网络配置的第一侧行配置授权的周期,k表示用于配置资源池时域资源的比特位图中取值为1的数量,L表示用于配置资源池时域资源的比特位图的总长度。
具体地,在示例1中,终端设备可以基于公式3得到PeriodicitySL。
进一步地,在该第一侧行配置授权为第一类侧行配置授权(type-1 SL CG)的情况下,该终端设备将公式3得到的PeriodicitySL代入上述公式1,以确定该第一侧行配置授权的时域资源。或者,在该第一侧行配置授权为第二类侧行配置授权(type-2 SL CG)的情况下,该终端设备将公式3得到的PeriodicitySL代入上述公式2,以确定该第一侧行配置授权的时域资源。
在示例1中,如果时隙A属于该第一侧行配置授权的一个传输机会,那么,时隙A+PeriodicitySL也是属于该第一侧行配置授权对应的资源池,并且也是一个该第一侧行配置授权的传输机会。
在示例1中,例如,网络设备配置20ms内可用于侧行传输的资源如下图9和图10所示,即在第一个10ms内包括3个可用于侧行传输的时隙,在第二个10ms内包括7个可用于侧行传输的时隙,此时,N=10。用于配置资源池时域资源的比特位图的长度是15比特,每3比特设置一个1,即每15个可用于侧行传输的时隙中的包括5个属于该资源池的时隙,第一侧行配置授权与该资源池相关联。
例如,假设第一侧行配置授权为第一类侧行配置授权(type-1 SL CG),且该第一侧行配置授权的周期为20ms,按照
Figure PCTCN2020104893-appb-000011
计算得到PeriodicitySL=10,如果网络设备配置的sl-TimeOffsetCGType1=0,按照上述公式1,逻辑时隙0,10,20,30,…是该第一侧行配置授权所对应的的时隙,但是根据资源池配置信息可知,时隙10和时隙20并不属于该第一侧行配置授权关联的资源池,如下图9中第四行所示,这两个时隙(时隙10和时隙20)并不属于该第一侧行配置授权对应的时域传输资源,也就不是该第一侧行配置授权可用的传输资源。因此,根据公式
Figure PCTCN2020104893-appb-000012
确定的该第一侧行配置授权的时域资源为时隙0、30,该第一侧行配置授权的相邻两个时域资源的间隔为30个时隙,即30ms,远远大于网络设备配置的该第一侧行配置授权的周期10ms。
又例如,假设第一侧行配置授权为第一类侧行配置授权(type-1 SL CG),且该第一侧行配置授权的周期为20ms,L=15,k=5,N=10,按照
Figure PCTCN2020104893-appb-000013
计算得到PeriodicitySL=4,即该第一侧行配置授权的周期为4个时隙,该4个时隙是该第一侧行配置授权相 关联的资源池中的4个时隙,如果网络设备配置的sl-TimeOffsetCGType1=0,按照上述公式1,资源池中的逻辑时隙0,4,8,12,…是该第一侧行配置授权所对应的的时隙,分别对应可用于侧行传输时隙集合中的逻辑时隙0、12、24、36,即该第一侧行配置授权的相邻两个时域资源的间隔为12个时隙,如图10所示,更接近于网络设备配置的真实周期值(10ms)。
因此,在示例1中,通过上述公式3将网络设备配置的第一侧行配置授权的周期转换为第一侧行配置授权的周期在第一侧行配置授权关联的资源池内对应的时隙数量,使得在第一侧行配置授权的传输资源确定公式中在其相关联的资源池中确定属于第一侧行配置授权的时隙,避免出现某个时隙不属于第一侧行配置授权关联的资源池的情况。
可选地,作为示例2,该第一信息包括一个无线帧中用于侧行传输的逻辑时隙的平均数量。也即,该终端设备可以根据该一个无线帧中用于侧行传输的逻辑时隙的平均数量确定该第一侧行配置授权的时域资源。
可选地,在示例2中,该一个无线帧中用于侧行传输的逻辑时隙的平均数量包括:
双SFN的时间范围内的第一个无线帧内用于侧行传输的逻辑时隙的数量和双SFN的时间范围内的第二个无线帧内用于侧行传输的逻辑时隙的数量的平均值。
在示例2中,该一个无线帧中用于侧行传输的逻辑时隙的平均数量可以通过如下公式4得到:averagenumberOfSLSlotsPerFrame=(numberOfSLSlotsFirstFrame+numberOfSLSlotsSecondFrame)/2  公式4
其中,averagenumberOfSLSlotsPerFrame表示一个无线帧中用于侧行传输的逻辑时隙的平均数量,numberOfSLSlotsFirstFrame表示双SFN的时间范围内的第一个无线帧内用于侧行传输的逻辑时隙的数量,numberOfSLSlotsSecondFrame表示双SFN的时间范围内的第二个无线帧内用于侧行传输的逻辑时隙的数量。
需要说明的是,在示例2中,将上述公式1和公式2中的numberOfSLSlotsPerFrame替换为averagenumberOfSLSlotsPerFrame,即可确定该第一侧行配置授权的时域资源。
因此,在示例2中,以一个无线帧中用于侧行传输的逻辑时隙的平均数量确定第一侧行配置授权的时域资源,避免了numberOfSLSlotsPerFrame在每个无线帧内数量不同的问题。
可选地,作为示例3,该第一信息包括:双SFN的时间范围内的SFN信息,双SFN的时间范围内的逻辑时隙信息和双SFN的时间范围内的时域偏移。也即,在示例3中,该终端设备可以根据该双SFN的时间范围内的SFN信息,该双SFN的时间范围内的逻辑时隙信息和该双SFN的时间范围内的时域偏移,确定该第一侧行配置授权的时域资源。
可选地,在示例3中,该双SFN的时间范围内的SFN信息包括以下中的至少一种:
双SFN的时间范围内的SFN索引、双SFN的时间范围内用于确定时域偏移的参考SFN索引、该第一侧行配置授权中第一个传输机会对应的双SFN的索引。
可选地,在示例3中,该双SFN的时间范围内的逻辑时隙信息包括以下中的至少一种:
双SFN的时间范围内用于侧行传输的逻辑时隙的数量,双SFN的时间范围内用于侧行传输的逻辑时隙的索引,该第一侧行配置授权中第一个传输机会对应的双SFN的时间范围内的逻辑时隙的索引。
可选地,在示例3中,该双SFN的时间范围内的时域偏移包括以下中的一种:
相对于SFN=0的时域偏移,相对于双SFN的时间范围内用于确定时域偏移的参考SFN索引的时域偏移。
可选地,在示例3中,在该第一侧行配置授权为第一类侧行配置授权(type-1 SL CG)的情况下,终端设备可以基于如下公式5确定该第一侧行配置授权的时域资源。
[(DoubleSFN×numberOfSLSlotsPerDoubleFrame)+logical slot number in the double frame]=(timeReferenceDoubleSFN×numberOfSLSlotsPerDoubleFrame+sl-TimeOffsetCGType1+S×PeriodicitySL)modulo(512×numberOfSLSlotsPerDoubleFrame)    公式5
其中,在公式5中,DoubleSFN表示双SFN的时间范围内的SFN索引,例如,SFN的索引范围是[0,1023],即10240ms内包括1024个无线帧,DoubleSFN的索引范围是[0,511];numberOfSLSlotsPerDoubleFrame表示双SFN的时间范围内用于侧行传输的逻辑时隙的数量;logical slot number in the double frame表示双SFN的时间范围内用于侧行传输的逻辑时隙的索引;sl-TimeOffsetCGType1表示双SFN的时间范围内的时域偏移;timeReferenceDoubleSFN表示双SFN的时间范围内用于确定时域偏移的参考SFN索引;S为任意整数;
Figure PCTCN2020104893-appb-000014
或者,
Figure PCTCN2020104893-appb-000015
N表示双SFN的时间范围内可以用于侧行传输的逻辑时隙的数量,sl_periodCG表示网络配置的第一侧行配置授权的周期,k表示用于配置资源池时域资源的比特位图中取值为1的数量,L表示用于配置资源池时域资源的比特位图的总长度。
可选地,在示例3中,在该第一侧行配置授权为第二类侧行配置授权(type-2 SL CG)的情况下,终端设备可以基于如下公式6确定该第一侧行配置授权的时域资源。
[(DoubleSFN×numberOfSLSlotsPerDoubleFrame)+logical slot number in the double frame]=[(DoubleSFN start time×numberOfSLSlotsPerDoubleFrame+slot start time)+S×PeriodicitySL]modulo(512×numberOfSLSlotsPerDoubleFrame)      公式6
其中,在公式6中,DoubleSFN表示双SFN的时间范围内的SFN索引,例如,SFN的索引范围是[0,1023],即10240ms内包括1024个无线帧,DoubleSFN的索引范围是[0,511];numberOfSLSlotsPerDoubleFrame表示双SFN的时间范围内用于侧行传输的逻辑时隙的数量;logical slot number in the double frame表示双SFN的时间范围内用于侧行传输的逻辑时隙的索引;DoubleSFN start time表示第一侧行配置授权中第一个传输机会对应的双SFN的索引;slot start time表示第一侧行配置授权中第一个传输机会对应的双SFN的时间范围内的逻辑时隙的索引;S为任意整数;
Figure PCTCN2020104893-appb-000016
或者,
Figure PCTCN2020104893-appb-000017
N表示双SFN的时间范围内可以用于侧行传输的逻辑时隙的数量,sl_periodCG表示网络配置的第一侧行配置授权的周期,k表示用于配置资源池时域资源的比特位图中取值为1的数量,L表示用于配置资源池时域资源的比特位图的总长度。
因此,在示例3中,以双SFN的时间范围确定第一侧行配置授权的时域资源,避免了numberOfSLSlotsPerFrame在每个无线帧内数量不同的问题。
可选地,作为示例4,该第一信息包括该第一侧行配置授权中的目标侧行传输资源与第一个侧行传输资源在时域上的偏移值。也即,该终端设备可以根据该第一侧行配置授权中的目标侧行传输资源与第一个侧行传输资源在时域上的偏移值,确定该第一侧行配置授权的时域资源。
可选地,在示例4中,在该第一侧行配置授权为第一类侧行配置授权(type-1 SL CG)的情况下,终端设备可以基于如下公式7确定该第一侧行配置授权的时域资源。
[(SFN×numberOfSLSlotsPerFrame)+logical slot number in the frame]=(timeReferenceSFN×numberOfSLSlotsPerFrame+sl-TimeOffsetCGType1+T+S×PeriodicitySL)modulo(1024×numberOfSLSlotsPerFrame)   公式7
其中,在公式7中,
Figure PCTCN2020104893-appb-000018
或者,
Figure PCTCN2020104893-appb-000019
N表示20ms的时间范围中可以用于侧行传输的逻辑时隙的数量,sl_periodCG表示网络配置的SL CG的周期,k表示用于配置资源池时域资源的比特位图中取值为1的数量,L表示用于配置资源池时域资源的比特位图的总长度;numberOfSLSlotsPerFrame表示一个无线帧中可以用于侧行传输的逻辑时隙的数量;logical slot number in the frame表示无线帧中逻辑时隙的数量;timeReferenceSFN表示时间参考SFN;sl-TimeOffsetCGType1表示type-1CG的时域偏移;T表示第一侧行配置授权中的目标侧行传输资源与第一个侧行传输资源在时域上的偏移值;S表示任意整数。
可选地,在示例4中,在该第一侧行配置授权为第二类侧行配置授权(type-2 SL CG)的情况下,终端设备可以基于如下公式8确定该第一侧行配置授权的时域资源。
[(SFN×numberOfSLSlotsPerFrame)+logical slot number in the frame]=[(SFN start  time×numberOfSLSlotsPerFrame+slot start  time)+T+S×PeriodicitySL]modulo(1024×numberOfSLSlotsPerFrame)   公式8
其中,在公式8中,
Figure PCTCN2020104893-appb-000020
或者,
Figure PCTCN2020104893-appb-000021
N表示20ms的时间范围中可以用于侧行传输的逻辑时隙的数量,sl_periodCG表示网络配置的SL CG的周期,k表示用于配置资源池时域资源的 比特位图中取值为1的数量,L表示用于配置资源池时域资源的比特位图的总长度;numberOfSLSlotsPerFrame表示一个无线帧中可以用于侧行传输的逻辑时隙的数量;logical slot number in the frame表示无线帧中逻辑时隙的数量;SFN start time表示CG资源中的第一个PSSCH传输机会所对应的SFN;slot start time表示CG资源中的第一个PSSCH传输机会所对应的逻辑时隙;sl-TimeOffsetCGType1表示type-1CG的时域偏移;T表示第一侧行配置授权中的目标侧行传输资源与第一个侧行传输资源在时域上的偏移值;S表示任意整数。
需要说明的是,在上述公式7和公式8中,在该第一侧行配置授权的一个周期内仅包括一个侧行传输资源的情况下,则T=0,即目标侧行传输资源与第一个侧行传输资源为同一个资源。在该第一侧行配置授权的一个周期内包括两个侧行传输资源的情况下,例如两个侧行传输资源分别对应的时隙为t1和t2,即目标侧行传输资源为第二个侧行传输资源,此种情况下,T=t2-t1,即在终端设备确定第一个侧行传输资源对应的时隙t1之后,可以基于T确定目标侧行传输资源对应的时隙t2。在该第一侧行配置授权的一个周期内包括三个侧行传输资源的情况下,假设三个侧行传输资源分别对应的时隙为t1、t2和t3,例如,在目标侧行传输资源为第二个侧行传输资源的情况下,T=t2-t1,即在终端设备确定第一个侧行传输资源对应的时隙t1之后,可以基于T确定目标侧行传输资源对应的时隙t2;又例如,在目标侧行传输资源为第三个侧行传输资源的情况下,T=t3-t1,即在终端设备确定第一个侧行传输资源对应的时隙t1之后,可以基于T确定目标侧行传输资源对应的时隙t3。
因此,在示例4中,终端设备根据第一侧行配置授权中的目标侧行传输资源与第一个侧行传输资源在时域上的偏移值,确定第一侧行配置授权的时域资源,也即,在第一侧行配置授权的一个周期内包括多个侧行传输资源的情况下,可以基于偏移值确定其他侧行传输资源。
需要说明的是,在上述4个示例中,该第一侧行配置授权关联的资源池在用于配置资源池时域资源的比特位图中的取值为1。
可选地,在本申请实施例中,终端设备可以结合上述4个示例中的方案,确定第一侧行配置授权的时域资源。
可选地,终端设备可以结合上述示例1和示例2中的方案,确定第一侧行配置授权的时域资源。例如,在第一侧行配置授权为第一类侧行配置授权的情况下,终端设备可以基于如下公式9确定第一侧行配置授权的时域资源。又例如,在第一侧行配置授权为第二类侧行配置授权的情况下,终端设备可以基于如下公式10确定第一侧行配置授权的时域资源。
[(SFN×averagenumberOfSLSlotsPerFrame)+logical slot number in the frame]=(timeReferenceSFN×averagenumberOfSLSlotsPerFrame+sl-TimeOffsetCGType1+S×PeriodicitySL)modulo(1024×averagenumberOfSLSlotsPerFrame)   公式9
其中,在公式9中,
Figure PCTCN2020104893-appb-000022
averagenumberOfSLSlotsPerFrame=(numberOfSLSlotsFirstFrame+numberOfSLSlotsSecondFrame)/2。此外,公式9中的其他参数可以参照上述公式1中的描述,在此不再赘述。
[(SFN×averagenumberOfSLSlotsPerFrame)+logical slot number in the frame]=[(SFN start time×averagenumberOfSLSlotsPerFrame+slot start time)+S×PeriodicitySL]modulo(1024×averagenumberOfSLSlotsPerFrame)        公式10
其中,在公式10中,
Figure PCTCN2020104893-appb-000023
averagenumberOfSLSlotsPerFrame=(numberOfSLSlotsFirstFrame+numberOfSLSlotsSecondFrame)/2。此外,公式10中的其他参数可以参照上述公式2中的描述,在此不再赘述。
可选地,终端设备可以结合上述示例1和示例3中的方案,确定第一侧行配置授权的时域资源。例如,在第一侧行配置授权为第一类侧行配置授权的情况下,终端设备可以基于上述公式5确定第一侧行配置授权的时域资源,其中,
Figure PCTCN2020104893-appb-000024
又例如,在第一侧行配置授权为第二类侧行配置授权的情况下,终端设备可以基于上述公式6确定第一侧行配置授权的时域资源,其中,
Figure PCTCN2020104893-appb-000025
可选地,终端设备可以结合上述示例1和示例4中的方案,确定第一侧行配置授权的时域资源。例如,在第一侧行配置授权为第一类侧行配置授权的情况下,终端设备可以基于上述公式7确定第一 侧行配置授权的时域资源,其中,
Figure PCTCN2020104893-appb-000026
又例如,在第一侧行配置授权为第二类侧行配置授权的情况下,终端设备可以基于上述公式8确定第一侧行配置授权的时域资源,其中,
Figure PCTCN2020104893-appb-000027
可选地,终端设备可以结合上述示例2和示例4中的方案,确定第一侧行配置授权的时域资源。例如,在第一侧行配置授权为第一类侧行配置授权的情况下,终端设备可以基于如下公式11确定第一侧行配置授权的时域资源。又例如,在第一侧行配置授权为第二类侧行配置授权的情况下,终端设备可以基于如下公式12确定第一侧行配置授权的时域资源。
[(SFN×averagenumberOfSLSlotsPerFrame)+logical slot number in the frame]=(timeReferenceSFN×averagenumberOfSLSlotsPerFrame+sl-TimeOffsetCGType1+T+S×PeriodicitySL)modulo(1024×averagenumberOfSLSlotsPerFrame)     公式11
其中,在公式11中,averagenumberOfSLSlotsPerFrame=(numberOfSLSlotsFirstFrame+numberOfSLSlotsSecondFrame)/2。此外,公式11中的其他参数可以参照上述公式7中的描述,在此不再赘述。
[(SFN×averagenumberOfSLSlotsPerFrame)+logical slot number in the frame]=[(SFN start time×averagenumberOfSLSlotsPerFrame+slot start time)+T+S×PeriodicitySL]modulo(1024×averagenumberOfSLSlotsPerFrame)      公式12
其中,在公式12中,averagenumberOfSLSlotsPerFrame=(numberOfSLSlotsFirstFrame+numberOfSLSlotsSecondFrame)/2。此外,公式12中的其他参数可以参照上述公式8中的描述,在此不再赘述。
可选地,终端设备可以结合上述示例3和示例4中的方案,确定第一侧行配置授权的时域资源。例如,在第一侧行配置授权为第一类侧行配置授权的情况下,终端设备可以基于如下公式13确定第一侧行配置授权的时域资源。又例如,在第一侧行配置授权为第二类侧行配置授权的情况下,终端设备可以基于如下公式14确定第一侧行配置授权的时域资源。
[(DoubleSFN×numberOfSLSlotsPerDoubleFrame)+logical slot number in the double frame]=(timeReferenceDoubleSFN×numberOfSLSlotsPerDoubleFrame+sl-TimeOffsetCGType1+T+S×PeriodicitySL)modulo(512×numberOfSLSlotsPerDoubleFrame)     公式13
其中,在公式13中,T表示第一侧行配置授权中的目标侧行传输资源与第一个侧行传输资源在时域上的偏移值,其他参数可以参考上述公式5中的相关描述,在此不再赘述。
[(DoubleSFN×numberOfSLSlotsPerDoubleFrame)+logical slot number in the double frame]=[(DoubleSFN start time×numberOfSLSlotsPerDoubleFrame+slot start time)+T+S×PeriodicitySL]modulo(512×numberOfSLSlotsPerDoubleFrame)      公式14
其中,在公式14中,T表示第一侧行配置授权中的目标侧行传输资源与第一个侧行传输资源在时域上的偏移值,其他参数可以参考上述公式6中的相关描述,在此不再赘述。
可选地,终端设备可以结合上述示例1、示例2和示例4中的方案,确定第一侧行配置授权的时域资源。例如,在第一侧行配置授权为第一类侧行配置授权的情况下,终端设备可以基于如下公式15确定第一侧行配置授权的时域资源。又例如,在第一侧行配置授权为第二类侧行配置授权的情况下,终端设备可以基于如下公式16确定第一侧行配置授权的时域资源。
[(SFN×averagenumberOfSLSlotsPerFrame)+logical slot number in the frame]=(timeReferenceSFN×averagenumberOfSLSlotsPerFrame+sl-TimeOffsetCGType1+T+S×PeriodicitySL)modulo(1024×averagenumberOfSLSlotsPerFrame)     公式15
其中,在公式15中,
Figure PCTCN2020104893-appb-000028
averagenumberOfSLSlotsPerFrame=(numberOfSLSlotsFirstFrame+numberOfSLSlotsSecondFrame)/2。此外,公式15中的其他参数可以参照上述公式7中的描述,在此不再赘述。
[(SFN×averagenumberOfSLSlotsPerFrame)+logical slot number in the frame]=[(SFN start time×averagenumberOfSLSlotsPerFrame+slot start time)+T+S×PeriodicitySL]modulo(1024×averagenumberOfSLSlotsPerFrame)        公式16
其中,在公式16中,
Figure PCTCN2020104893-appb-000029
averagenumberOfSLSlotsPerFrame=(numberOfSLSlotsFirstFrame+numberOfSLSlotsSecondFrame)/2。此外,公式16中的其他参数可以参照上述公式8中的描述,在此不再赘述。
可选地,终端设备可以结合上述示例1、示例3和示例4中的方案,确定第一侧行配置授权的时域资源。例如,在第一侧行配置授权为第一类侧行配置授权的情况下,终端设备可以基于上述公式13确定第一侧行配置授权的时域资源,其中,
Figure PCTCN2020104893-appb-000030
又例如,在第一侧行配置授权为第二类侧行配置授权的情况下,终端设备可以基于如下公式14确定第一侧行配置授权的时域资源,其中,
Figure PCTCN2020104893-appb-000031
可选地,在本申请实施例中,对于第一类侧行配置授权(type-1 SL CG),网络设备还可以通过RRC信令配置如下参数中的至少一种:
侧行配置授权的索引(sl-ConfigIndexCG),用于侧行传输的预配置调度无线网络临时标识(Configured Scheduling RNTI,CS-RNTI)(sl-CS-RNTI),配置授权的混合自动重传请求(Hybrid Automatic Repeat reQuest,HARQ)进程号(nrofHARQ-Processes),第一类侧行配置授权的周期(sl-periodCG),第一类侧行配置授权的SFN=0对应的时域资源偏移(sl-TimeOffsetCGType1),第一类侧行配置授权的SFN=0对应的时域资源位置(sl-TimeResourceCGType1),一个传输块(Transport block,TB)使用配置授权(CG)可以传输的最大次数(sl-CG-MaxTransNumList),第一类侧行配置授权的HARQ进程偏移量(sl-harq-procID-offset)。
可选地,在本申请实施例中,对于第二类侧行配置授权(type-2 SL CG),网络设备还可以通过RRC信令配置如下参数中的至少一种:
侧行配置授权的索引(sl-ConfigIndexCG),用于侧行传输的CS-RNTI(sl-CS-RNTI),配置授权的HARQ进程号(nrofHARQ-Processes),第二类侧行配置授权的周期(sl-periodCG),一个TB使用配置授权(CG)可以传输的最大次数(sl-CG-MaxTransNumList),第二类侧行配置授权的HARQ进程偏移量(sl-harq-procID-offset)。
因此,在本申请实施例中,终端设备根据第一侧行配置授权的周期在第一侧行配置授权关联的资源池内对应的时隙数量确定第一侧行配置授权的时域资源,从而第一侧行配置授权的时域资源在第一侧行配置授权关联的资源池中进行索引,避免出现某个时隙不属于第一侧行配置授权关联的资源池的情况。
或者,终端设备以双SFN的时间范围确定第一侧行配置授权的时域资源,避免无线帧中用于侧行传输的逻辑时隙的数量在每个无线帧内的数量不同的问题。
或者,终端设备根据第一侧行配置授权中的目标侧行传输资源与第一个侧行传输资源在时域上的偏移值,确定第一侧行配置授权的时域资源,也即,在第一侧行配置授权的一个周期内包括多个侧行传输资源的情况下,可以基于偏移值确定其他侧行传输资源。
上文结合图8至图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。
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包括:
处理单元310,用于根据第一信息确定第一侧行配置授权的时域资源,其中,
该第一信息包括以下中的至少一种:
该第一侧行配置授权的周期在该第一侧行配置授权关联的资源池内对应的时隙数量,一个无线帧中用于侧行传输的逻辑时隙的平均数量,双SFN的时间范围内的SFN信息,双SFN的时间范围内的逻辑时隙信息,双SFN的时间范围内的时域偏移,该第一侧行配置授权中的目标侧行传输资源与第一个侧行传输资源在时域上的偏移值。
可选地,该第一侧行配置授权的周期在该第一侧行配置授权关联的资源池内对应的时隙数量由以下信息中的至少一种确定:
用于配置资源池时域资源的比特位图的总长度,用于配置资源池时域资源的比特位图中取第一值的数量,网络设备配置的该第一侧行配置授权的周期。
可选地,该第一侧行配置授权关联的资源池在该比特位图中的取值为该第一值。
可选地,该第一值为1。
可选地,该一个无线帧中用于侧行传输的逻辑时隙的平均数量包括:
双SFN的时间范围内的第一个无线帧内用于侧行传输的逻辑时隙的数量和双SFN的时间范围内的第二个无线帧内用于侧行传输的逻辑时隙的数量的平均值。
可选地,该双SFN的时间范围内的SFN信息包括以下中的至少一种:
双SFN的时间范围内的SFN索引、双SFN的时间范围内用于确定时域偏移的参考SFN索引、该第一侧行配置授权中第一个传输机会对应的双SFN的索引。
可选地,该双SFN的时间范围内的逻辑时隙信息包括以下中的至少一种:
双SFN的时间范围内用于侧行传输的逻辑时隙的数量,双SFN的时间范围内用于侧行传输的逻辑时隙的索引,该第一侧行配置授权中第一个传输机会对应的双SFN的时间范围内的逻辑时隙的索引。
可选地,该双SFN的时间范围内的时域偏移包括以下中的一种:
相对于SFN=0的时域偏移,相对于双SFN的时间范围内用于确定时域偏移的参考SFN索引的时域偏移。
可选地,在该第一侧行配置授权的一个周期内包括两个侧行传输资源的情况下,该目标侧行传输资源为该两个侧行传输资源中的第二个侧行传输资源;
在该第一侧行配置授权的一个周期内包括三个侧行传输资源的情况下,该目标侧行传输资源为该两个侧行传输资源中的第二个侧行传输资源,或者,该目标侧行传输资源为该两个侧行传输资源中的第三个侧行传输资源。
可选地,该第一侧行配置授权为第一类侧行配置授权,其中,该第一类侧行配置授权为网络设备通过无线资源控制RRC信令配置的侧行配置授权;或者,
该第一侧行配置授权为第二类侧行配置授权,其中,该第二类侧行配置授权为网络设备通过RRC信令配置且通过下行控制信息DCI激活的侧行配置授权。
可选地,在一些实施例中,上述处理单元可以是一个或多个处理器。
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终端设备,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8所示方法200中终端设备的相应流程,为了简洁,在此不再赘述。
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。
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。
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。
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。
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。
可选地,该通信设备400具体可为本申请实施例的网络设备,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网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该通信设备400具体可为本申请实施例的移动终端/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移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
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。
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。
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。
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。
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。
可选地,该装置可应用于本申请实施例中的网络设备,并且该装置可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该装置可应用于本申请实施例中的移动终端/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移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
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***级芯片,***芯片,芯片***或片上***芯片等。
图14是本申请实施例提供的一种通信***600的示意性框图。如图14所示,该通信***600包括终端设备610和网络设备620。
其中,该终端设备610可以用于实现上述方法中由终端设备实现的相应的功能,以及该网络设备620可以用于实现上述方法中由网络设备实现的相应的功能为了简洁,在此不再赘述。
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。
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***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。
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。
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。
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网络设备,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网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机可读存储介质可应用于本申请实施例中的移动终端/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移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
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。
可选的,该计算机程序产品可应用于本申请实施例中的网络设备,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网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序产品可应用于本申请实施例中的移动终端/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移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的,该计算机程序可应用于本申请实施例中的网络设备,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网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序可应用于本申请实施例中的移动终端/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移动终端/终端设备实现的相应流程,为 了简洁,在此不再赘述。
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。
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***、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。
在本申请所提供的几个实施例中,应该理解到,所揭露的***、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***,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。
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。
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。
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。
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。

Claims (25)

  1. 一种确定侧行链路配置授权资源的方法,其特征在于,包括:
    终端设备根据第一信息确定第一侧行配置授权的时域资源,其中,
    所述第一信息包括以下中的至少一种:
    所述第一侧行配置授权的周期在所述第一侧行配置授权关联的资源池内对应的时隙数量,一个无线帧中用于侧行传输的逻辑时隙的平均数量,双***帧号SFN的时间范围内的SFN信息,双SFN的时间范围内的逻辑时隙信息,双SFN的时间范围内的时域偏移,所述第一侧行配置授权中的目标侧行传输资源与第一个侧行传输资源在时域上的偏移值。
  2. 如权利要求1所述的方法,其特征在于,所述第一侧行配置授权的周期在所述第一侧行配置授权关联的资源池内对应的时隙数量由以下信息中的至少一种确定:
    用于配置资源池时域资源的比特位图的总长度,用于配置资源池时域资源的比特位图中取第一值的数量,网络设备配置的所述第一侧行配置授权的周期。
  3. 如权利要求2所述的方法,其特征在于,所述第一侧行配置授权关联的资源池在所述比特位图中的取值为所述第一值。
  4. 如权利要求2或3所述的方法,其特征在于,所述第一值为1。
  5. 如权利要求1所述的方法,其特征在于,所述一个无线帧中用于侧行传输的逻辑时隙的平均数量包括:
    双SFN的时间范围内的第一个无线帧内用于侧行传输的逻辑时隙的数量和双SFN的时间范围内的第二个无线帧内用于侧行传输的逻辑时隙的数量的平均值。
  6. 如权利要求1所述的方法,其特征在于,所述双SFN的时间范围内的SFN信息包括以下中的至少一种:
    双SFN的时间范围内的SFN索引、双SFN的时间范围内用于确定时域偏移的参考SFN索引、所述第一侧行配置授权中第一个传输机会对应的双SFN的索引。
  7. 如权利要求1所述的方法,其特征在于,所述双SFN的时间范围内的逻辑时隙信息包括以下中的至少一种:
    双SFN的时间范围内用于侧行传输的逻辑时隙的数量,双SFN的时间范围内用于侧行传输的逻辑时隙的索引,所述第一侧行配置授权中第一个传输机会对应的双SFN的时间范围内的逻辑时隙的索引。
  8. 如权利要求1所述的方法,其特征在于,所述双SFN的时间范围内的时域偏移包括以下中的一种:
    相对于SFN=0的时域偏移,相对于双SFN的时间范围内用于确定时域偏移的参考SFN索引的时域偏移。
  9. 如权利要求1所述的方法,其特征在于,
    在所述第一侧行配置授权的一个周期内包括两个侧行传输资源的情况下,所述目标侧行传输资源为所述两个侧行传输资源中的第二个侧行传输资源;
    在所述第一侧行配置授权的一个周期内包括三个侧行传输资源的情况下,所述目标侧行传输资源为所述两个侧行传输资源中的第二个侧行传输资源,或者,所述目标侧行传输资源为所述两个侧行传输资源中的第三个侧行传输资源。
  10. 如权利要求1至9中任一项所述的方法,其特征在于,
    所述第一侧行配置授权为第一类侧行配置授权,其中,所述第一类侧行配置授权为网络设备通过无线资源控制RRC信令配置的侧行配置授权;或者,
    所述第一侧行配置授权为第二类侧行配置授权,其中,所述第二类侧行配置授权为网络设备通过RRC信令配置且通过下行控制信息DCI激活的侧行配置授权。
  11. 一种终端设备,其特征在于,包括:
    处理单元,用于根据第一信息确定第一侧行配置授权的时域资源,其中,
    所述第一信息包括以下中的至少一种:
    所述第一侧行配置授权的周期在所述第一侧行配置授权关联的资源池内对应的时隙数量,一个无线帧中用于侧行传输的逻辑时隙的平均数量,双***帧号SFN的时间范围内的SFN信息,双SFN的时间范围内的逻辑时隙信息,双SFN的时间范围内的时域偏移,所述第一侧行配置授权中的目标侧行传输资源与第一个侧行传输资源在时域上的偏移值。
  12. 如权利要求11所述的终端设备,其特征在于,所述第一侧行配置授权的周期在所述第一侧行配置授权关联的资源池内对应的时隙数量由以下信息中的至少一种确定:
    用于配置资源池时域资源的比特位图的总长度,用于配置资源池时域资源的比特位图中取第一值的数量,网络设备配置的所述第一侧行配置授权的周期。
  13. 如权利要求12所述的终端设备,其特征在于,所述第一侧行配置授权关联的资源池在所述比特位图中的取值为所述第一值。
  14. 如权利要求12或13所述的终端设备,其特征在于,所述第一值为1。
  15. 如权利要求11所述的终端设备,其特征在于,所述一个无线帧中用于侧行传输的逻辑时隙的平均数量包括:
    双SFN的时间范围内的第一个无线帧内用于侧行传输的逻辑时隙的数量和双SFN的时间范围内的第二个无线帧内用于侧行传输的逻辑时隙的数量的平均值。
  16. 如权利要求11所述的终端设备,其特征在于,所述双SFN的时间范围内的SFN信息包括以下中的至少一种:
    双SFN的时间范围内的SFN索引、双SFN的时间范围内用于确定时域偏移的参考SFN索引、所述第一侧行配置授权中第一个传输机会对应的双SFN的索引。
  17. 如权利要求11所述的终端设备,其特征在于,所述双SFN的时间范围内的逻辑时隙信息包括以下中的至少一种:
    双SFN的时间范围内用于侧行传输的逻辑时隙的数量,双SFN的时间范围内用于侧行传输的逻辑时隙的索引,所述第一侧行配置授权中第一个传输机会对应的双SFN的时间范围内的逻辑时隙的索引。
  18. 如权利要求11所述的终端设备,其特征在于,所述双SFN的时间范围内的时域偏移包括以下中的一种:
    相对于SFN=0的时域偏移,相对于双SFN的时间范围内用于确定时域偏移的参考SFN索引的时域偏移。
  19. 如权利要求11所述的终端设备,其特征在于,
    在所述第一侧行配置授权的一个周期内包括两个侧行传输资源的情况下,所述目标侧行传输资源为所述两个侧行传输资源中的第二个侧行传输资源;
    在所述第一侧行配置授权的一个周期内包括三个侧行传输资源的情况下,所述目标侧行传输资源为所述两个侧行传输资源中的第二个侧行传输资源,或者,所述目标侧行传输资源为所述两个侧行传输资源中的第三个侧行传输资源。
  20. 如权利要求11至19中任一项所述的终端设备,其特征在于,
    所述第一侧行配置授权为第一类侧行配置授权,其中,所述第一类侧行配置授权为网络设备通过无线资源控制RRC信令配置的侧行配置授权;或者,
    所述第一侧行配置授权为第二类侧行配置授权,其中,所述第二类侧行配置授权为网络设备通过RRC信令配置且通过下行控制信息DCI激活的侧行配置授权。
  21. 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10中任一项所述的方法。
  22. 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10中任一项所述的方法。
  23. 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10中任一项所述的方法。
  24. 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10中任一项所述的方法。
  25. 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10中任一项所述的方法。
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