WO2021160112A1 - 确定直通链路进程的方法及设备 - Google Patents

确定直通链路进程的方法及设备 Download PDF

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Publication number
WO2021160112A1
WO2021160112A1 PCT/CN2021/076190 CN2021076190W WO2021160112A1 WO 2021160112 A1 WO2021160112 A1 WO 2021160112A1 CN 2021076190 W CN2021076190 W CN 2021076190W WO 2021160112 A1 WO2021160112 A1 WO 2021160112A1
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Prior art keywords
processes
authorization
resource
grant
harq
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PCT/CN2021/076190
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English (en)
French (fr)
Inventor
张轶
夏亮
王启星
刘光毅
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中国移动通信有限公司研究院
中国移动通信集团有限公司
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Publication of WO2021160112A1 publication Critical patent/WO2021160112A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • 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
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • 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
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/56Allocation or scheduling criteria for wireless resources based on priority criteria
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup

Definitions

  • the present disclosure relates to the field of mobile communication technology, and in particular to a method and device for determining the process of a direct link.
  • the New Radio (NR, New Radio) V2X system supports two resource allocation methods: resource allocation mode 1 (Mode-1) and resource allocation mode 2 (Mode-2). in,
  • Resource allocation Mode-1 The resource allocation mode controlled by the base station, that is, the base station configures radio resource control (Radio Resource Control, RRC) and/or DCI schedules direct link (SL, sidelink) resources, and the V2X sender schedules resources at the base station
  • RRC Radio Resource Control
  • DCI schedules direct link (SL, sidelink) resources
  • V2X sender schedules resources at the base station
  • Data packets are sent on the Internet, including direct link control information (SCI, Sidelink Control information) and data.
  • SCI is used in the physical direct link control channel (PSCCH, Physical Sidelink Control Channel) and the physical direct link shared channel (PSSCH, Physical Sidelink Shared Channel). Channel), data is carried on PSSCH;
  • Resource allocation Mode-2 UE's autonomous resource allocation mode, that is, when the V2X sender has a data packet to be sent, the resource selection is made through its own sensing (sensing), and the data packet is sent on the selected sidelink resource, including SCI and data, SCI is carried on PSCCH and PSSCH, and data is carried on PSSCH.
  • For resource allocation Mode-1 it supports dynamic grant (dynamic grant) and configured grant (configured grant, specifically including type 1 type-1 and type-2). There are three scheduling methods, among which dynamic grant scheduling can only schedule one transmission block at a time. (Transport Block, TB), configured grant (type-1, type-2) periodically allocates a series of resources to the terminal for the base station, and the terminal determines which TB is transmitted on this series of resources.
  • configured grant Configured grant
  • configured sidelink grant Configured sidelink grant
  • the downlink control information (DCI, Downlink Control Information) issued by the base station includes the hybrid automatic repeat request (HARQ, Hybrid Automatic Repeat reQuest) identifier, that is, the HARQ ID, and the new data indicator (NDI, New Data Indicator) , And the available sidelink time domain and frequency domain resources are indicated in the DCI;
  • HARQ Hybrid Automatic Repeat reQuest
  • NDI New Data Indicator
  • the base station indicates periodically available sidelink time domain and frequency domain resources through radio resource control (RRC) signaling;
  • RRC radio resource control
  • the base station For configured grant type-2, the base station indicates periodically available sidelink time domain and frequency domain resources through RRC signaling and activation/deactivation of DCI.
  • the receiving terminal supports the sending terminal (transmitter) to feedback SL HARQ-ACK (Sidelink Feedback Control Information (SFCI, Sidelink Feedback Control Information)), in the physical through link feedback channel ( PSFCH, Physical Sidelink Feedback Channel), and for V2X resource allocation Mode-1, support the transmitter to send the received SL HARQ-ACK to the base station, and assist the base station to perform retransmission scheduling.
  • SL HARQ-ACK Sidelink Feedback Control Information
  • PSFCH Physical Sidelink Feedback Channel
  • V2X resource allocation Mode-1 support the transmitter to send the received SL HARQ-ACK to the base station, and assist the base station to perform retransmission scheduling.
  • SFCI Sidelink Feedback Control Information
  • PSFCH Physical Sidelink Feedback Channel
  • V2X resource allocation Mode-1 support the transmitter to send the received SL HARQ-ACK to the base station, and assist the base station to perform retransmission scheduling.
  • type-1, type-2 if the base station receives SL NACK, it can dynamically grant SL re
  • the cyclic redundancy check (CRC, Cyclic Redundancy Check) of the dynamic grant used for scheduling retransmission uses the radio network temporary identity (Radio Network Temporary Identity, RNTI) of the DCI used for dynamic SL authorization )(SL RNTI introduced for DCI for a dynamic grant) for scrambling;
  • RNTI Radio Network Temporary Identity
  • the CRC of the dynamic grant used for scheduling retransmission is scrambled with the RNTI (SL RNTI introduced for DCI for a configured grant type-2) used for the configured SL authorized DCI;
  • one PUCCH is supported to transmit 1-bit HARQ-ACK.
  • At least one embodiment of the present disclosure provides a method and device for determining a through link process, which can determine a through link process associated with a retransmission authorization, so as to guide the retransmission of the through link.
  • At least one embodiment provides a method for determining the process of a through link, which is applied to a terminal, and includes:
  • At least one SL process associated with the first SL authorization is determined.
  • determining at least one SL process associated with the first SL authorization includes:
  • the first SL authorization is an SL authorization for the first RNTI of a Media Access Control (MAC) entity, and the new data included in the first SL authorization indicates NDI, compared to the previous SL authorization If the NDI contained in the HARQ information for the first HARQ process number received last time has not been overturned, the first SL resource or the SL process corresponding to the initial transmission of the SL is taken as the at least one SL process, or, Use the SL process corresponding to the first HARQ process number as the at least one SL process;
  • MAC Media Access Control
  • the first SL authorization is the SL authorization for the second RNTI of the MAC entity, and the PDCCH content indicates the retransmission of the activated configured sidelink grant
  • the second SL resource or the SL process corresponding to the initial SL transmission One or more are used as the at least one SL process, or one or more of the SL processes corresponding to the first HARQ process number included in the first SL authorization are used as the at least one SL process.
  • the first SL resource is any one of the following resources:
  • the resource indicated by the SL grant/PDCCH that contains the first HARQ process number last received before the first SL grant, or, PSCCH duration(s) during PSCCH and PSSCH duration(s) during PSSCH;
  • the second SL resource is any one of the following resources:
  • one or more of the SL processes corresponding to the second SL resource is used as the at least one SL process in at least one of the following ways:
  • Manner 1 Determine one or more of the SL processes corresponding to the second SL resource as the at least one SL process by means of autonomous determination by the terminal;
  • Manner 2 According to the received at least one physical direct link feedback channel PSFCH, determine one or more of the SL processes corresponding to the second SL resource as the at least one SL process;
  • Manner 3 According to the priority of the physical direct link shared channel PSSCH, one or more of the SL processes corresponding to the second SL resource is determined as the at least one SL process.
  • the first number of SL processes is determined according to the second method; and, according to the first method, the first number of SL processes is determined Determine the second number of SL processes independently;
  • one or more of the SL processes corresponding to the first HARQ process number included in the first SL authorization is used as the at least one SL process :
  • Manner 4 Determine one or more of the SL processes corresponding to the first HARQ process number included in the first SL authorization as the at least one SL process by means of autonomous determination by the terminal;
  • Manner 5 According to the received at least one physical direct link feedback channel PSFCH, determine one or more of the SL processes corresponding to the first HARQ process number included in the first SL grant as the at least one SL process ;
  • Manner 6 Determine one or more of the SL processes corresponding to the first HARQ process number included in the first SL grant as the at least one SL process according to the priority of the physical through link shared channel PSSCH.
  • the tenth number of SL processes is determined according to the fifth method; and, according to the fourth method, the tenth number of SL processes is determined
  • the eleventh number of SL processes are determined independently in China;
  • method five and method six determine the sixteenth number of SL processes according to the fifth method; and, according to the sixth method, determine the sixteenth number of SL processes from the sixteenth method.
  • the seventeenth number of SL processes; and, according to the fourth method, the eighteenth number of SL processes are autonomously determined from the seventeenth number of SL processes.
  • the method before the step of determining at least one SL process associated with the first SL authorization, the method further includes:
  • the received first SL authorization is used to determine the retransmission resource of the MAC protocol data unit (Protocol Data Unit, PDU) corresponding to the at least one SL process.
  • PDU MAC protocol data unit
  • the received first SL authorization is used to determine the retransmission resource of the MAC PDU corresponding to the at least one SL process:
  • the first SL authorization is an SL authorization for the first wireless network temporary identity RNTI of the media access control MAC entity, and the first new data included in the first SL authorization indicates NDI, compared to the first SL authorization
  • the second NDI contained in the HARQ information for the first HARQ process number received last time has not been overturned;
  • the first SL authorization is the SL authorization for the second RNTI of the MAC entity, and the first SL authorization indication is the activated configured SL authorization to retransmit the configured sidelink grant.
  • At least one embodiment provides a terminal, including:
  • the receiving module is used to receive the first direct link SL grant sent by the network on the physical layer downlink control channel PDCCH;
  • the determining module is configured to determine at least one SL process associated with the authorization of the first SL if the first SL authorization indicates retransmission.
  • the determining module is further configured to:
  • the first SL authorization is the SL authorization for the first RNTI of the MAC entity, and the new data contained in the first SL authorization indicates the NDI, compared to the last received before the first SL authorization for the first RNTI If the NDI contained in the HARQ information of the HARQ process number is not overturned, the first SL resource or the SL process corresponding to the initial SL transmission is used as the at least one SL process, or the SL process corresponding to the first HARQ process number As the at least one SL process;
  • the second SL resource or the SL process corresponding to the initial SL transmission One or more are used as the at least one SL process, or one or more of the SL processes corresponding to the first HARQ process number included in the first SL authorization are used as the at least one SL process.
  • the first SL resource is any one of the following resources:
  • the second SL resource is any one of the following resources:
  • the determining module is further configured to:
  • one or more of the SL processes corresponding to the second SL resource is used as the at least one SL process:
  • Manner 1 Determine one or more of the SL processes corresponding to the second SL resource as the at least one SL process by means of autonomous determination by the terminal;
  • Manner 2 According to the received at least one physical direct link feedback channel PSFCH, determine one or more of the SL processes corresponding to the second SL resource as the at least one SL process;
  • Manner 3 According to the priority of the physical direct link shared channel PSSCH, one or more of the SL processes corresponding to the second SL resource is determined as the at least one SL process.
  • the determining module is further configured to:
  • the first and second methods determine the first number of SL processes according to the second method; and, according to the first method, determine the second number of SL processes autonomously from the first number of SL processes process;
  • the determining module is further configured to:
  • one or more of the SL processes corresponding to the first HARQ process number included in the first SL authorization is used as the at least one SL process:
  • Manner 4 Determine one or more of the SL processes corresponding to the first HARQ process number included in the first SL authorization as the at least one SL process by means of autonomous determination by the terminal;
  • Manner 5 According to the received at least one physical direct link feedback channel PSFCH, determine one or more of the SL processes corresponding to the first HARQ process number included in the first SL grant as the at least one SL process ;
  • Manner 6 Determine one or more of the SL processes corresponding to the first HARQ process number included in the first SL grant as the at least one SL process according to the priority of the physical through link shared channel PSSCH.
  • the determining module is further configured to:
  • method five and method six determine the sixteenth number of SL processes according to the fifth method; and, according to the sixth method, determine the sixteenth number of SL processes from the sixteenth method.
  • the seventeenth number of SL processes; and, according to the fourth method, the eighteenth number of SL processes are autonomously determined from the seventeenth number of SL processes.
  • the terminal further includes:
  • the resource determination module is configured to use the received first SL authorization to determine the MAC PDU retransmission resource corresponding to the at least one SL process before determining the at least one SL process associated with the first SL authorization.
  • the resource determining module is further configured to use the received first SL authorization to determine the retransmission resource of the MAC PDU corresponding to the at least one SL process when any of the following conditions is met:
  • the first SL authorization is an SL authorization for the first wireless network temporary identity RNTI of the media access control MAC entity, and the first new data included in the first SL authorization indicates NDI, compared to the first SL authorization
  • the second NDI contained in the HARQ information for the first HARQ process number received last time has not been overturned;
  • the first SL authorization is the SL authorization for the second RNTI of the MAC entity, and the first SL authorization indication is the activated configured SL authorization to retransmit the configured sidelink grant.
  • At least one embodiment provides a terminal including a transceiver and a processor, wherein:
  • the transceiver is configured to receive the first direct link SL grant sent by the network on the physical layer downlink control channel PDCCH;
  • the processor is configured to determine at least one SL process associated with the authorization of the first SL if the first SL authorization indicates retransmission.
  • At least one embodiment provides a terminal including a processor, a memory, and a program stored on the memory and capable of running on the processor, and the program is used by the processor.
  • the steps of the method for determining the through link process as described above are realized.
  • At least one embodiment provides a computer-readable storage medium with a program stored on the computer-readable storage medium, and when the program is executed by a processor, the above-mentioned method is implemented. step.
  • the method and device for determining the process of the through link can determine the process of the through link associated with the retransmission authorization, so as to guide the retransmission of the through link.
  • some embodiments of the present disclosure may also determine the first SL authorization based on the mapping relationship between HARQ ID and SL transmission resources/transmission opportunities included in the first SL authorization, and the priority of the PSFCH and/or PSSCH received by the terminal.
  • the SL process ID corresponding to the HARQ ID provides support for SL retransmission.
  • FIG. 1 is a schematic diagram of application scenarios of some embodiments of the present disclosure
  • FIG. 2 is a flowchart of a method for determining a through link process provided by some embodiments of the present disclosure
  • FIG. 3 is a schematic structural diagram of a terminal provided by some embodiments of the present disclosure.
  • FIG. 4 is a schematic diagram of another structure of a terminal provided by some embodiments of the present disclosure.
  • the technology described in this article is not limited to NR systems and Long Time Evolution (LTE)/LTE-Advanced (LTE-A) systems, and can also be used in various wireless communication systems, such as code division multiple access.
  • Code Division Multiple Access CDMA
  • Time Division Multiple Access TDMA
  • Frequency Division Multiple Access FDMA
  • Orthogonal Frequency Division Multiple Access OFDMA
  • Single-carrier Frequency-Division Multiple Access SC-FDMA
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • the terms “system” and “network” are often used interchangeably.
  • the CDMA system can implement radio technologies such as CDMA2000 and Universal Terrestrial Radio Access (UTRA).
  • UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants.
  • the TDMA system can implement radio technologies such as the Global System for Mobile Communication (GSM).
  • GSM Global System for Mobile Communication
  • the OFDMA system can implement radios such as UltraMobile Broadband (UMB), Evolved UTRA (Evolution-UTRA, E-UTRA), IEEE802.21 (Wi-Fi), IEEE802.16 (WiMAX), IEEE802.20, Flash-OFDM, etc. technology.
  • UMB UltraMobile Broadband
  • Evolved UTRA Evolved UTRA
  • E-UTRA Evolved UTRA
  • IEEE802.21 Wi-Fi
  • WiMAX IEEE802.16
  • IEEE802.20 Flash-OFDM
  • Flash-OFDM Flash-OFDM
  • UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project” (3GPP).
  • CDMA2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2" (3GPP2).
  • the techniques described in this article can be used for the systems and radio technologies mentioned above, as well as other systems and radio technologies.
  • the following description describes the NR system for exemplary purposes, and NR terminology is used in most of the following description, although these techniques can also be applied to applications other than NR system applications.
  • the wireless communication system includes a terminal 11 and a network device 12.
  • the terminal 11 may also be called a user terminal or a user equipment (UE, User Equipment), and the terminal 11 may be a mobile phone, a tablet (Personal Computer), a laptop (Laptop Computer), or a personal digital assistant (Personal Digital Assistant).
  • PDA mobile Internet device
  • MID mobile Internet Device
  • Wearable Device wearable device
  • vehicle-mounted equipment it should be noted that in some embodiments of the present disclosure, the terminal 11 is not limited Specific type.
  • the network device 12 may be a base station and/or a core network element, where the above-mentioned base station may be a base station of 5G and later versions (for example: gNB, 5G NR NB, etc.), or a base station in other communication systems (for example: eNB, WLAN Access point, or other access points, etc.), where the base station can be called Node B, Evolved Node B, Access Point, Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node or
  • the base station is not limited to a specific technical vocabulary. It should be noted that in some embodiments of the present disclosure, only the base station in the NR system is taken as an example. However, the base station in the NR system is taken as an example. However, the
  • the base station may communicate with the terminal 11 under the control of the base station controller.
  • the base station controller may be a part of a core network or some base stations. Some base stations can communicate control information or user data with the core network through the backhaul. In some examples, some of these base stations may directly or indirectly communicate with each other through a backhaul link, which may be a wired or wireless communication link.
  • the wireless communication system can support operations on multiple carriers (waveform signals of different frequencies). Multi-carrier transmitters can simultaneously transmit modulated signals on these multiple carriers. For example, each communication link may be a multi-carrier signal modulated according to various radio technologies. Each modulated signal can be sent on a different carrier and can carry control information (for example, reference signals, control channels, etc.), overhead information, data, and so on.
  • the base station may perform wireless communication with the terminal 11 via one or more access point antennas. Each base station can provide communication coverage for its corresponding coverage area. The coverage area of an access point can be divided into sectors that constitute only a part of the coverage area.
  • the wireless communication system may include different types of base stations (for example, a macro base station, a micro base station, or a pico base station).
  • the base station can also utilize different radio technologies, such as cellular or WLAN radio access technologies.
  • the base stations can be associated with the same or different access networks or operator deployments.
  • the coverage areas of different base stations may overlap.
  • the communication link in the wireless communication system may include an uplink for carrying uplink (UL) transmission (for example, from the terminal 11 to the network device 12), or for carrying a downlink (DL) Transmission (e.g., from the network device 12 to the terminal 11) downlink.
  • UL transmission may also be referred to as reverse link transmission
  • DL transmission may also be referred to as forward link transmission.
  • Downlink transmission can use licensed frequency bands, unlicensed frequency bands, or both.
  • uplink transmission can be performed using licensed frequency bands, unlicensed frequency bands, or both.
  • the HARQ ID contained in the DCI issued by the base station is a different concept from the SL process ID (SL process ID) in the SL HARQ entity.
  • the HARQ ID in the DCI only indicates some resources or some SL transmissions. Therefore, when the terminal receives the DCI dispatched by the base station to schedule a HARQ ID retransmission, it needs to identify which SL process ID corresponds to the sidelink;
  • the base station For the configured grant (type-1, type-2), the base station periodically allocates a set of transmission resources/transmission opportunities, but whether these transmission resources/transmission opportunities are transmitted from the same TB or different TBs to the same The receiving end or to a different receiving end is determined by the sending terminal itself. For the configured grant, after a group of resources appear periodically, only 1-bit HARQ-ACK is sent. If the base station receives a NACK, it cannot distinguish which TB transmitted by the V2X sender is wrong, and the V2X sender is receiving it. After the retransmission authorization sent by the base station, it is also impossible to know which TB is to be retransmitted on the scheduling resource.
  • some embodiments of the present disclosure provide a method for determining the through link process, which can identify the through link process associated with the retransmission authorization, and is used to guide the through link retransmission.
  • the method for determining the process of a through link provided by some embodiments of the present disclosure, which is applied to a terminal, includes:
  • Step 21 Receive the first SL authorization sent by the network on the PDCCH.
  • Step 22 If the first SL authorizes the instruction to retransmit, determine at least one SL process associated with the first SL authorization.
  • the terminal will identify at least one SL process associated with the first SL authorization after receiving the SL authorization (for ease of description, referred to herein as the first SL authorization) indicating retransmission, so that it can be used To provide relevant information for SL retransmission.
  • the first SL authorization for ease of description, referred to herein as the first SL authorization
  • the terminal may use the received first SL authorization to determine the MAC PDU retransmission resource corresponding to the at least one SL process.
  • the terminal before step 22, after receiving the first SL authorization, the terminal can determine whether the first SL authorization is an SL authorization indicating retransmission in the following manner:
  • the first SL authorization is the SL authorization for the first RNTI of the MAC entity, and the first NDI included in the first SL authorization is compared with the first NDI received before the first SL authorization for the first time If the second NDI contained in the HARQ information of a HARQ process number is not overturned, it means that the first SL authorization is an SL authorization indicating retransmission. At this time, the received first SL authorization is used to determine that the at least one SL process corresponds MAC PDU retransmission resources.
  • the first HARQ process number is the HARQ process number included in the first SL grant.
  • the retransmission resource of the MAC PDU corresponding to the at least one SL process may specifically be a PSCCH period (PSCCH duration(s)) and a PSSCH period (PSSCH duration(s)).
  • the first RNTI is sometimes referred to as the RNTI (SL RNTI introduced for DCI for a dynamic grant) of the DCI used for dynamic SL authorization.
  • the first SL authorization is an SL authorization for the second RNTI of the MAC entity, and the PDCCH content indicates the retransmission of an activated configured sidelink grant (configured sidelink grant), it means that the first SL authorization is an instruction retransmission.
  • the received first SL authorization is used to determine the retransmission resource of the MAC PDU corresponding to the at least one SL process.
  • the retransmission resources of the MAC PDU corresponding to the at least one SL process may be PSCCH duration(s) and PSSCH duration(s).
  • the second RNTI is sometimes also referred to as the RNTI (SL RNTI introduced for DCI for a configured grant type-2) of the DCI used for the configured SL authorization.
  • identifying at least one SL process associated with the first SL authorization in step 21 it may specifically include:
  • the first SL authorization is an SL authorization for the first RNTI of the MAC entity, and the new data contained in the first SL authorization indicates NDI, compared to the last received before the first SL authorization for the If the NDI contained in the HARQ information of the HARQ process number is not overturned, the first SL resource or the SL process corresponding to the initial SL transmission is used as the at least one SL process, or the SL process corresponding to the first HARQ process number As the at least one SL process.
  • the SL process corresponding to the first SL resource or the SL process corresponding to the initial transmission of the SL, or the SL process corresponding to the first HARQ process number is taken as the at least one SL process.
  • the first SL resource may specifically be any one of the following resources:
  • PSCCH duration(s) and PSSCH duration(s) The resources occupied by the initial transmission of the SL or the occupied PSCCH period and PSSCH period.
  • the SL process corresponding to the first HARQ process number is used as the at least one SL process
  • a mapping relationship between the HARQ process number and the first information may be established in advance, and the first information may specifically include the SL process number ( SL process ID), resource identification (source ID) and (destination ID). Among them, the destination ID can be represented by the receiving end ID. Furthermore, according to the mapping relationship, the SL process corresponding to the first HARQ process number is determined.
  • the second SL resource or SL process corresponding to the initial transmission of the SL One or more of the SL processes are used as the at least one SL process, or one or more of the SL processes corresponding to the first HARQ process number included in the first SL authorization are used as the at least one SL process.
  • the second SL resource may specifically be any one of the following resources:
  • PSCCH duration(s) and PSSCH duration(s) The resources occupied by the initial transmission of the SL or the occupied PSCCH period and PSSCH period.
  • the SL resource corresponding to the first HARQ process number, or, the PSCCH period and the PSSCH period That is, the SL resource corresponding to the first HARQ process number, or the PSCCH duration(s) and PSSCH duration(s) corresponding to the first HARQ process number.
  • some embodiments of the present disclosure also provide multiple identification methods. To identify at least one SL process associated with the first SL authorization, multiple methods are provided below. Some embodiments of the present disclosure may use one or more of the following three methods for identification, which will be described separately below.
  • the terminal may use one or more of the SL processes corresponding to the second SL resource as the at least one SL process according to at least one of the following methods:
  • Manner 1 Determine one or more of the SL processes corresponding to the second SL resource as the at least one SL process through an autonomous determination method of the terminal.
  • the first method is determined by the terminal autonomously.
  • the terminal can arbitrarily select one or more of the SL processes corresponding to the second SL resource as the at least one SL process.
  • Manner 2 According to the received at least one physical direct link feedback channel PSFCH, one or more of the SL processes corresponding to the second SL resource is determined as the at least one SL process.
  • the PSFCH in the second method when determining according to the PSFCH in the second method, it can be: according to the feedback information on the PSFCH (such as SL HARQ-ACK), select the resource that failed to be sent in the second SL resource, and put the selected resource in the SL process corresponding to the selected resource.
  • the feedback information on the PSFCH such as SL HARQ-ACK
  • select the resource that failed to be sent in the second SL resource select the resource that failed to be sent in the second SL resource, and put the selected resource in the SL process corresponding to the selected resource.
  • One or more of them are used as the at least one SL process.
  • the PSFCH corresponding to the transmission opportunity is carried on the ACK, and the terminal determines the sidelink process(s) associated with the first SL authorization as the sidelink process corresponding to the i-th SL transmission resource/SL transmission opportunity according to the received PSFCH(s);
  • Manner 3 According to the priority of the physical direct link shared channel PSSCH, one or more of the SL processes corresponding to the second SL resource is determined as the at least one SL process.
  • the third method when determining according to the priority of the PSSCH, it can be: according to the priority order of the PSSCH, one or more resources with the highest priority are selected from the second SL resources, and the selected resources are selected.
  • the corresponding SL process serves as the at least one SL process.
  • the base station periodically allocates N SL transmission resources/SL transmission opportunities through the configured grant, the sender transmits a total of M TB/MAC PDUs on the N SL transmission resources/SL transmission opportunities, and the terminal receives the retransmission
  • the first SL authorization is transmitted, and the sidelink process(s) associated with the first SL authorization is determined to be the highest X (X is less than or equal to M) SL logical channels according to the highest SL logical channel priority contained in the M MAC PDUs
  • the sidelink process(s) corresponding to the MAC PDU corresponding to the priority X is less than or equal to M
  • the following provides a number of examples of using one or more of the SL processes corresponding to the second SL resource as the at least one SL process by adopting multiple ways from one to three of the foregoing manners:
  • the first and second methods determine the first number of SL processes according to the second method; and, according to the first method, determine the second number autonomously from the first number of SL processes SL process.
  • the first number is greater than or equal to the second number.
  • method 2 and method 3 determine the seventh number of SL processes according to the second method; and, according to the third method, determine the seventh number of SL processes from the seventh number of SL processes.
  • the seventh number is greater than or equal to the eighth number
  • the eighth number is greater than or equal to the ninth number.
  • the terminal may use one or more of the SL processes corresponding to the first HARQ process number included in the first SL authorization as the at least one SL process according to at least one of the following methods:
  • Manner 4 Determine one or more of the SL processes corresponding to the first HARQ process number included in the first SL authorization as the at least one SL process by means of autonomous determination by the terminal;
  • Manner 5 According to the received at least one physical direct link feedback channel PSFCH, determine one or more of the SL processes corresponding to the first HARQ process number included in the first SL grant as the at least one SL process ;
  • Manner 6 Determine one or more of the SL processes corresponding to the first HARQ process number included in the first SL grant as the at least one SL process according to the priority of the physical through link shared channel PSSCH.
  • the following provides multiple ways of using the above-mentioned ways four to six, and taking one or more of the SL processes corresponding to the first HARQ process number contained in the first SL authorization as several examples of the at least one SL process :
  • method five and method six determine the sixteenth number of SL processes according to the method five; and, according to the sixth method, determine from the sixteenth number of SL processes The seventeenth number of SL processes; and, according to method four, autonomously determine the eighteenth number of SL processes from the seventeenth number of SL processes.
  • the sixteenth number is greater than or equal to the seventeenth number
  • the seventeenth number is greater than or equal to the eighteenth number.
  • the first information may specifically include an SL process number (SL process ID), a resource identifier (source ID), and (destination ID).
  • SL process ID an SL process number
  • source ID a resource identifier
  • destination ID can be represented by the receiving end ID.
  • the mapping relationship the SL process corresponding to the first HARQ process number is determined.
  • the method for determining the through link process in some embodiments of the present disclosure can be based on the mapping relationship between HARQ ID and SL transmission resources/transmission opportunities included in the first SL authorization, and the terminal received
  • the priority of the PSFCH and/or PSSCH determines the SL process ID corresponding to the HARQ ID authorized by the first SL, thereby providing support for SL retransmission.
  • the method for determining the through link process of some embodiments of the present disclosure when executed on the terminal side, may specifically include the following steps:
  • the terminal receives the first SL authorization, assuming that the first SL authorization contains the first HARQ process number;
  • the first SL grant is used to schedule the SL Retransmitted
  • the CRC authorized by the first SL is scrambled by the SL RNTI (that is, the first RNTI in the foregoing), it means that the initial transmission corresponding to the retransmission scheduled by the first SL is dynamic scheduling, and the first SL
  • the sidelink process corresponding to the authorization is the sidelink process corresponding to the PSCCH duration(s) and PSSCH duration(s) occupied by the SL initial transmission.
  • the sidelink process corresponding to the first SL authorization is the sidelink process corresponding to the initial transmission of the SL;
  • the CRC authorized by the first SL is scrambled by the SL cs-RNTI (that is, the second RNTI in the foregoing), it means that the initial transmission corresponding to the retransmission scheduled by the first SL is configured grant scheduling, and the first SL is authorized
  • the corresponding sidelink process is one or more of the sidelink process(s) corresponding to the PSCCH duration(s) and PSSCH duration(s) occupied by the first SL transmission; or the sidelink process corresponding to the first SL authorization corresponds to the first SL transmission
  • One or more of the sidelink processes specifically, can be determined in any one or more of the following three ways:
  • the terminal can determine the sidelink process associated with the first SL authorization to be one or more of the PSCCH duration(s) and PSSCH duration(s) corresponding to the first SL transmission. Or, the terminal determines that the sidelink process authorized by the first SL is one or more of the sidelink processes corresponding to the initial SL transmission.
  • the terminal can determine whether one or more of the PSCCH duration(s) and PSSCH duration(s) corresponding to the first PSCCH duration(s) and PSSCH duration(s) occupied by the first transmission is the same as the first SL authorization association; or, according to the received PSFCH(s), the terminal determines that the sidelink process of the first SL authorization association is one or more of the sidelink processes corresponding to the initial SL transmission.
  • the terminal can determine the sidelink process associated with the first SL authorization to be the PSCCH duration(s) and PSSCH duration(s) corresponding to the PSSCH duration(s) occupied by the first SL transmission according to the priority of different PSSCH(s) ); or, according to the priority of different PSSCH(s), the terminal may determine the sidelink process associated with the first SL authorization to be one or more of the sidelink processes corresponding to the initial SL transmission;
  • identifying at least one SL process associated with the first SL authorization are provided below:
  • the NDI included in the first SL authorization is not reversed compared with the NDI included in the SL authorization corresponding to the same HARQ ID before, and the CRC of the first SL authorization is scrambled by the SL RNTI (first RNTI), it means that The initial transmission corresponding to the retransmission scheduled by the first SL authorization is dynamic scheduling.
  • the sidelink process associated with the first SL authorization is the PSCCH duration(s) and PSSCH duration(s) occupied by the first SL transmission.
  • sidelink process; or the sidelink process associated with the first SL authorization is the sidelink process corresponding to the initial transmission of the SL;
  • the NDI included in the first SL authorization is not reversed compared with the NDI included in the SL authorization corresponding to the same HARQ ID before, and the CRC of the first SL authorization is scrambled by SL cs-RNTI (second RNTI), then Indicates that the initial transmission corresponding to the retransmission scheduled by the first SL authorization is configured grant scheduling, and the sidelink process(s) associated with the first SL authorization corresponds to the PSCCH duration(s) and PSSCH duration(s) occupied by the first SL transmission
  • One or more of the sidelink process(s) of the first SL; or the sidelink process(s) associated with the first SL authorization is one or more of the sidelink process(s) corresponding to the initial transmission of the SL.
  • the receiving module 31 is configured to receive the first direct link SL grant sent by the network on the physical layer downlink control channel PDCCH;
  • the determining module 32 is configured to determine at least one SL process associated with the authorization of the first SL if the first SL authorization indicates retransmission.
  • the determining module is further used for:
  • the first SL authorization is the SL authorization for the first RNTI of the MAC entity, and the new data contained in the first SL authorization indicates the NDI, compared to the last received before the first SL authorization for the first RNTI If the NDI contained in the HARQ information of the HARQ process number is not overturned, the first SL resource or the SL process corresponding to the initial SL transmission is used as the at least one SL process, or the SL process corresponding to the first HARQ process number As the at least one SL process;
  • the second SL resource or the SL process corresponding to the initial SL transmission One or more are used as the at least one SL process, or one or more of the SL processes corresponding to the first HARQ process number included in the first SL authorization are used as the at least one SL process.
  • the first SL resource is any one of the following resources:
  • the second SL resource is any one of the following resources:
  • the determining module is further used for:
  • one or more of the SL processes corresponding to the second SL resource is used as the at least one SL process:
  • Manner 1 Determine one or more of the SL processes corresponding to the second SL resource as the at least one SL process by means of autonomous determination by the terminal;
  • Manner 2 According to the received at least one physical direct link feedback channel PSFCH, determine one or more of the SL processes corresponding to the second SL resource as the at least one SL process;
  • Manner 3 According to the priority of the physical direct link shared channel PSSCH, one or more of the SL processes corresponding to the second SL resource is determined as the at least one SL process.
  • the determining module is further used for:
  • the first and second methods determine the first number of SL processes according to the second method; and, according to the first method, determine the second number of SL processes autonomously from the first number of SL processes process;
  • the determining module is further used for:
  • one or more of the SL processes corresponding to the first HARQ process number included in the first SL authorization is used as the at least one SL process:
  • Manner 4 Determine one or more of the SL processes corresponding to the first HARQ process number included in the first SL authorization as the at least one SL process by means of autonomous determination by the terminal;
  • Manner 5 According to the received at least one physical direct link feedback channel PSFCH, determine one or more of the SL processes corresponding to the first HARQ process number included in the first SL grant as the at least one SL process ;
  • Manner 6 Determine one or more of the SL processes corresponding to the first HARQ process number included in the first SL grant as the at least one SL process according to the priority of the physical through link shared channel PSSCH.
  • the determining module is further used for:
  • method five and method six determine the sixteenth number of SL processes according to the fifth method; and, according to the sixth method, determine the sixteenth number of SL processes from the sixteenth method.
  • the seventeenth number of SL processes; and, according to the fourth method, the eighteenth number of SL processes are autonomously determined from the seventeenth number of SL processes.
  • the terminal further includes:
  • the resource determination module is configured to use the received first SL authorization to determine the MAC PDU retransmission resource corresponding to the at least one SL process before identifying the at least one SL process associated with the first SL authorization.
  • the resource determination module is further configured to use the received first SL authorization to determine the MAC PDU retransmission resource corresponding to the at least one SL process when any of the following conditions is met:
  • the first SL authorization is an SL authorization for the first wireless network temporary identity RNTI of the media access control MAC entity, and the first new data included in the first SL authorization indicates NDI, compared to the first SL authorization
  • the second NDI contained in the HARQ information for the first HARQ process number received last time has not been overturned;
  • the first SL authorization is the SL authorization for the second RNTI of the MAC entity, and the first SL authorization indication is the activated configured SL authorization to retransmit the configured sidelink grant.
  • the terminal embodiment is a device corresponding to the foregoing method embodiment, and all implementation manners in the foregoing method embodiment are applicable to the terminal embodiment, and the same or similar technical effects can also be achieved.
  • FIG. 4 is a schematic structural diagram of a terminal provided by some embodiments of the present disclosure.
  • the terminal 400 includes a processor 401, a transceiver 402, a memory 403, a user interface 404, and a bus interface.
  • the terminal 400 further includes a program that is stored in the memory 403 and can be run on the processor 401.
  • the processor 401 implements the following steps when executing the program:
  • At least one SL process associated with the first SL authorization is determined.
  • each process of the method for determining a through link process embodiment shown in FIG. 2 can be realized, and the same technical effect can be achieved. To avoid repetition, I won’t repeat it here.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 401 and various circuits of the memory represented by the memory 403 are linked together. The bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein.
  • the bus interface provides the interface.
  • the transceiver 402 may be a plurality of elements, that is, including a transmitter and a receiver, and provide a unit for communicating with various other devices on a transmission medium.
  • the user interface 404 may also be an interface capable of connecting externally and internally with the required equipment.
  • the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 401 is responsible for managing the bus architecture and general processing, and the memory 403 can store data used by the processor 401 when performing operations.
  • a computer-readable storage medium on which a program is stored, and the program is executed by a processor to implement the following steps:
  • At least one SL process associated with the first SL authorization is determined.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, 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 the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments of the present disclosure.
  • the functional units in the various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present disclosure essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.
  • modules, units, sub-modules, sub-units, etc. can be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (Digital Signal Processing, DSP), digital signal processing equipment ( DSP Device, DSPD), Programmable Logic Device (PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, Other electronic units or combinations thereof that perform the functions described in the present disclosure.
  • ASICs application specific integrated circuits
  • DSP Digital Signal Processing
  • DSP Device digital signal processing equipment
  • PLD Programmable Logic Device
  • Field-Programmable Gate Array Field-Programmable Gate Array
  • FPGA Field-Programmable Gate Array

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Abstract

提供一种确定直通链路进程的方法及设备,该方法包括:接收网络在物理层下行控制信道PDCCH上发送的第一直通链路SL授权;若第一SL授权指示重传,则确定所述第一SL授权关联的至少一个SL进程。

Description

确定直通链路进程的方法及设备
相关申请的交叉引用
本申请主张在2020年2月14日在中国提交的中国专利申请号No.202010093950.9的优先权,其全部内容通过引用包含于此。
技术领域
本公开涉及移动通信技术领域,具体涉及一种确定直通链路进程的方法及设备。
背景技术
新空口(NR,New Radio)V2X系统支持两种资源分配方式:资源分配模式1(Mode-1)和资源分配模式2(Mode-2)。其中,
资源分配Mode-1:基站控制的资源分配模式,即基站通过无线资源控制(Radio Resource Control,RRC)配置和/或DCI调度直通链路(SL,sidelink)资源,V2X发送端在基站调度的资源上发送数据包,包括直通链路控制信息(SCI,Sidelink Control information)和数据,SCI在物理直通链路控制信道(PSCCH,Physical Sidelink Control Channel)和物理直通链路共享信道(PSSCH,Physical Sidelink Shared Channel)上承载,数据在PSSCH上承载;
资源分配Mode-2:UE自主的资源分配模式,即当V2X发送端有数据包需要发送时,通过自身感知(sensing)进行资源选择,在选择的sidelink资源上发送数据包,包括SCI和数据,SCI在PSCCH和PSSCH上承载,数据在PSSCH上承载。
对于资源分配Mode-1,支持动态授权(dynamic grant),配置授权(configured grant,具体又包括类型1type-1和type-2)共三种调度方式,其中dynamic grant调度一次只能调度一个传输块(Transport Block,TB),configured grant(type-1,type-2)为基站周期性地为终端分配了一系列资源,而在这一系列资源上传输哪个TB是终端自己决定的。在本文中,配置授权(configured grant)有时也称作为配置的SL授权(configured sidelink grant)。
具体的,在采用资源分配Mode-1时:
对于dynamic grant,基站下发的下行控制信息(DCI,Downlink Control Information)中包括混合自动重传请求(HARQ,Hybrid Automatic Repeat reQuest)标识,即HARQ ID,和新数据指示(NDI,New Data Indicator),且DCI中指示可用的sidelink时域和频域资源;
对于configured grant type-1,为基站通过无线资源控制(RRC)信令指示周期性可用的sidelink时域和频域资源;
对于configured grant type-2,为基站通过RRC信令和激活/去激活DCI指示周期性可用的sidelink时域和频域资源。
另外,为了提升sidelink频谱效率,支持接收终端(receiver)向发送终端(transmitter)反馈SL HARQ-ACK(直通链路反馈控制信息(SFCI,Sidelink Feedback Control Information)),在物理直通链路反馈信道(PSFCH,Physical Sidelink FeedbackChannel)上承载,而对于V2X资源分配Mode-1,支持transmitter将收到的SL HARQ-ACK发送给基站,辅助基站进行重传调度。无论对于dynamic grant,还是configured grant(type-1,type-2),如果基站收到SL NACK,可以通过dynamic grant调度SL重传资源,其中,NDI的解读方式和Uu口相同:
-当初传是dynamic grant调度时,用于调度重传的dynamic grant的循环冗余校验(CRC,Cyclic Redundancy Check)使用用于动态SL授权的DCI的无线网络临时标识(Radio Network Temporary Identity,RNTI)(SL RNTI introduced for DCI for a dynamic grant)进行加扰;
-当初传是configured grant调度时,用于调度重传的dynamic grant的CRC使用用于配置的SL授权的DCI的RNTI(SL RNTI introduced for DCI for a configured grant type-2)加扰;
-对于configured grant,在一系列资源的后面,支持一个PUCCH传输1比特HARQ-ACK。
发明内容
本公开的至少一个实施例提供了一种确定直通链路进程的方法及设备, 能够确定重传授权关联的直通链路进程,从而用于指导直通链路的重传。
根据本公开的一个方面,至少一个实施例提供了一种确定直通链路进程的方法,应用于终端,包括:
接收网络在物理层下行控制信道PDCCH上发送的第一直通链路SL授权;
若第一SL授权指示重传,则确定所述第一SL授权关联的至少一个SL进程。
根据本公开的至少一个实施例,确定所述第一SL授权关联的至少一个SL进程,包括:
若所述第一SL授权为针对介质访问控制层(Media Access Control,MAC)实体的第一RNTI的SL授权,且第一SL授权中包含的新数据指示NDI,相比于第一SL授权之前最近一次接收到的针对所述第一HARQ进程号的HARQ信息种包含的NDI,未发生翻转,则将第一SL资源或SL初传所对应的SL进程作为所述至少一个SL进程,或者,将第一HARQ进程号对应的SL进程作为所述至少一个SL进程;
或者,
若所述第一SL授权为针对MAC实体的第二RNTI的SL授权,且PDCCH内容指示为激活的configured sidelink grant的重传,则将第二SL资源或SL初传所对应的SL进程中的一个或多个作为所述至少一个SL进程,或者,将所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个作为所述至少一个SL进程。
根据本公开的至少一个实施例,所述第一SL资源为以下资源中的任一种:
SL初传所占用的资源或所占用的PSCCH期间PSCCH duration(s)和PSSCH期间PSSCH duration(s);
第一SL授权之前最近一次接收到的包含第一HARQ进程号的SL授权/PDCCH指示的资源,或,PSCCH期间PSCCH duration(s)和PSSCH期间PSSCH duration(s);
所述第二SL资源为以下资源中的任一种:
SL初传所占用的资源或所占用的PSCCH期间PSCCH duration(s)和PSSCH期间PSSCH duration(s);
第一HARQ进程号所对应的SL资源,或,PSCCH期间PSCCH duration(s)和PSSCH期间PSSCH duration(s)。
根据本公开的至少一个实施例,按照以下方式中的至少一种,将第二SL资源所对应的SL进程中的一个或多个作为所述至少一个SL进程:
方式一:通过终端自主确定的方式,确定第二SL资源所对应的SL进程中的一个或多个,作为所述至少一个SL进程;
方式二:根据接收到的至少一个物理直通链路反馈信道PSFCH,确定第二SL资源所对应的SL进程中的一个或多个,作为所述至少一个SL进程;
方式三:根据物理直通链路共享信道PSSCH的优先级,确定第二SL资源所对应的SL进程中的一个或多个,作为所述至少一个SL进程。
根据本公开的至少一个实施例,当采用方式一和方式二时,按照所述方式二,确定出第一数量的SL进程;以及,按照所述方式一,从所述第一数量的SL进程中自主确定出第二数量的SL进程;
当采用方式一和方式三时,按照所述方式三,确定出第三数量的SL进程;以及,按照所述方式一,从所述第三数量的SL进程中自主确定出第四数量的SL进程;
当采用方式二和方式三时,按照所述方式二,确定出第五数量的SL进程;以及,按照所述方式三,从所述第五数量的SL进程中确定出第六数量的SL进程;
当采用方式一、方式二和方式三时,按照所述方式二,确定出第七数量的SL进程;以及,按照所述方式三,从所述第七数量的SL进程中确定出第八数量的SL进程;以及,按照方式一,从所述第八数量的SL进程中自主确定出第九数量的SL进程。
根据本公开的至少一个实施例,按照以下方式中的至少一种,将所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个作为所述至少一个SL进程:
方式四:通过终端自主确定的方式,确定所述第一SL授权中包含的第一 HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程;
方式五:根据接收到的至少一个物理直通链路反馈信道PSFCH,确定所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程;
方式六:根据物理直通链路共享信道PSSCH的优先级,确定所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程。
根据本公开的至少一个实施例,当采用方式四和方式五时,按照所述方式五,确定出第十数量的SL进程;以及,按照所述方式四,从所述第十数量的SL进程中自主确定出第十一数量的SL进程;
当采用方式四和方式六时,按照所述方式六,确定出第十二数量的SL进程;以及,按照所述方式四,从所述第十二数量的SL进程中自主确定出第十三数量的SL进程;
当采用方式五和方式六时,按照所述方式五,确定出第十四数量的SL进程;以及,按照所述方式六,从所述第十四数量的SL进程中确定出第十五数量的SL进程;
当采用方式四、方式五和方式六时,按照所述方式五,确定出第十六数量的SL进程;以及,按照所述方式六,从所述第十六数量的SL进程中确定出第十七数量的SL进程;以及,按照方式四,从所述第十七数量的SL进程中自主确定出第十八数量的SL进程。
根据本公开的至少一个实施例,在确定所述第一SL授权关联的至少一个SL进程的步骤之前,所述方法还包括:
使用接收到的第一SL授权确定所述至少一个SL进程对应的MAC协议数据单元(Protocol Data Unit,PDU)的重传资源。
根据本公开的至少一个实施例,在满足以下任一条件时,使用接收到的第一SL授权确定所述至少一个SL进程对应的MAC PDU的重传资源:
所述第一SL授权为针对媒体接入控制MAC实体的第一无线网络临时标识RNTI的SL授权,且所述第一SL授权中包含的第一新数据指示NDI,相比于第一SL授权之前最近一次接收到的针对第一HARQ进程号的HARQ信 息中包含的第二NDI,未发生翻转;
或者,
所述第一SL授权为针对MAC实体的第二RNTI的SL授权,且第一SL授权指示为激活的配置的SL授权configured sidelink grant的重传。
根据本公开的另一方面,至少一个实施例提供了一种终端,包括:
接收模块,用于接收网络在物理层下行控制信道PDCCH上发送的第一直通链路SL授权;
确定模块,用于若第一SL授权指示重传,则确定所述第一SL授权关联的至少一个SL进程。
根据本公开的至少一个实施例,所述确定模块,还用于:
若所述第一SL授权为针对MAC实体的第一RNTI的SL授权,且第一SL授权中包含的新数据指示NDI,相比于第一SL授权之前最近一次接收到的针对所述第一HARQ进程号的HARQ信息种包含的NDI,未发生翻转,则将第一SL资源或SL初传所对应的SL进程作为所述至少一个SL进程,或者,将第一HARQ进程号对应的SL进程作为所述至少一个SL进程;
或者,
若所述第一SL授权为针对MAC实体的第二RNTI的SL授权,且PDCCH内容指示为激活的configured sidelink grant的重传,则将第二SL资源或SL初传所对应的SL进程中的一个或多个作为所述至少一个SL进程,或者,将所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个作为所述至少一个SL进程。
根据本公开的至少一个实施例,所述第一SL资源为以下资源中的任一种:
SL初传所占用的资源或所占用的PSCCH期间和PSSCH期间;
第一SL授权之前最近一次接收到的的包含第一HARQ进程号的SL授权/PDCCH指示的资源,或,PSCCH期间和PSSCH期间;
所述第二SL资源为以下资源中的任一种:
SL初传所占用的资源或所占用的PSCCH期间和PSSCH期间;
第一HARQ进程号所对应的SL资源,或,PSCCH期间和PSSCH期间。
根据本公开的至少一个实施例,所述确定模块,还用于:
按照以下方式中的至少一种,将第二SL资源所对应的SL进程中的一个或多个作为所述至少一个SL进程:
方式一:通过终端自主确定的方式,确定第二SL资源所对应的SL进程中的一个或多个,作为所述至少一个SL进程;
方式二:根据接收到的至少一个物理直通链路反馈信道PSFCH,确定第二SL资源所对应的SL进程中的一个或多个,作为所述至少一个SL进程;
方式三:根据物理直通链路共享信道PSSCH的优先级,确定第二SL资源所对应的SL进程中的一个或多个,作为所述至少一个SL进程。
根据本公开的至少一个实施例,所述确定模块,还用于:
当采用方式一和方式二时,按照所述方式二,确定出第一数量的SL进程;以及,按照所述方式一,从所述第一数量的SL进程中自主确定出第二数量的SL进程;
当采用方式一和方式三时,按照所述方式三,确定出第三数量的SL进程;以及,按照所述方式一,从所述第三数量的SL进程中自主确定出第四数量的SL进程;
当采用方式二和方式三时,按照所述方式二,确定出第五数量的SL进程;以及,按照所述方式三,从所述第五数量的SL进程中确定出第六数量的SL进程;
当采用方式一、方式二和方式三时,按照所述方式二,确定出第七数量的SL进程;以及,按照所述方式三,从所述第七数量的SL进程中确定出第八数量的SL进程;以及,按照方式一,从所述第八数量的SL进程中自主确定出第九数量的SL进程。
根据本公开的至少一个实施例,所述确定模块,还用于:
按照以下方式中的至少一种,将所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个作为所述至少一个SL进程:
方式四:通过终端自主确定的方式,确定所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程;
方式五:根据接收到的至少一个物理直通链路反馈信道PSFCH,确定所 述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程;
方式六:根据物理直通链路共享信道PSSCH的优先级,确定所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程。
根据本公开的至少一个实施例,所述确定模块,还用于:
当采用方式四和方式五时,按照所述方式五,确定出第十数量的SL进程;以及,按照所述方式四,从所述第十数量的SL进程中自主确定出第十一数量的SL进程;
当采用方式四和方式六时,按照所述方式六,确定出第十二数量的SL进程;以及,按照所述方式四,从所述第十二数量的SL进程中自主确定出第十三数量的SL进程;
当采用方式五和方式六时,按照所述方式五,确定出第十四数量的SL进程;以及,按照所述方式六,从所述第十四数量的SL进程中确定出第十五数量的SL进程;
当采用方式四、方式五和方式六时,按照所述方式五,确定出第十六数量的SL进程;以及,按照所述方式六,从所述第十六数量的SL进程中确定出第十七数量的SL进程;以及,按照方式四,从所述第十七数量的SL进程中自主确定出第十八数量的SL进程。
根据本公开的至少一个实施例,所述终端还包括:
资源确定模块,用于在确定所述第一SL授权关联的至少一个SL进程之前,使用接收到的第一SL授权确定所述至少一个SL进程对应的MAC PDU的重传资源。
根据本公开的至少一个实施例,所述资源确定模块,还用于在满足以下任一条件时,使用接收到的第一SL授权确定所述至少一个SL进程对应的MAC PDU的重传资源:
所述第一SL授权为针对媒体接入控制MAC实体的第一无线网络临时标识RNTI的SL授权,且所述第一SL授权中包含的第一新数据指示NDI,相比于第一SL授权之前最近一次接收到的针对第一HARQ进程号的HARQ信 息中包含的第二NDI,未发生翻转;
或者,
所述第一SL授权为针对MAC实体的第二RNTI的SL授权,且第一SL授权指示为激活的配置的SL授权configured sidelink grant的重传。
根据本公开的另一方面,至少一个实施例提供了一种终端,包括收发机和处理器,其中,
所述收发机,用于接收网络在物理层下行控制信道PDCCH上发送的第一直通链路SL授权;
所述处理器,用于若第一SL授权指示重传,则确定所述第一SL授权关联的至少一个SL进程。
根据本公开的另一个方面,至少一个实施例提供了一种终端,包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序,所述程序被所述处理器执行时实现如上所述的确定直通链路进程的方法的步骤。
根据本公开的另一方面,至少一个实施例提供了一种计算机可读存储介质,所述计算机可读存储介质上存储有程序,所述程序被处理器执行时,实现如上所述的方法的步骤。
与相关技术相比,本公开的一些实施例提供的确定直通链路进程的方法及设备,能够确定重传授权关联的直通链路进程,从而用于指导直通链路的重传。另外,本公开的一些实施例还可以通过第一SL授权中包含的HARQ ID和SL传输资源/传输机会的映射关系,以及终端收到的PSFCH和/或PSSCH的优先级,确定第一SL授权的HARQ ID对应的SL process ID,从而为SL重传提供了支持。
附图说明
通过阅读下文优选实施方式的详细描述,各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的,而并不认为是对本公开的限制。而且在整个附图中,用相同的参考符号表示相同的部件。在附图中:
图1为本公开的一些实施例的应用场景示意图;
图2为本公开的一些实施例提供的确定直通链路进程的方法的流程图;
图3为本公开的一些实施例提供的终端的结构示意图;
图4为本公开的一些实施例提供的终端的另一结构示意图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例,然而应当理解,可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反,提供这些实施例是为了能够更透彻地理解本公开,并且能够将本公开的范围完整的传达给本领域的技术人员。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本申请的实施例例如能够以除了在这里图示或描述的那些以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。说明书以及权利要求中“和/或”表示所连接对象的至少其中之一。
本文所描述的技术不限于NR系统以及长期演进型(Long Time Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,并且也可用于各种无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他系统。术语“系统”和“网络”常被可互换地使用。CDMA系统可实现诸如CDMA2000、通用地面无线电接入(Universal Terrestrial Radio Access,UTRA)等无线电技术。UTRA包括宽带CDMA(Wideband Code Division Multiple Access,WCDMA)和其他CDMA变体。TDMA系统可实现诸如全球移动通信系统(Global System for Mobile  Communication,GSM)之类的无线电技术。OFDMA系统可实现诸如超移动宽带(UltraMobile Broadband,UMB)、演进型UTRA(Evolution-UTRA,E-UTRA)、IEEE 802.21(Wi-Fi)、IEEE 802.16(WiMAX)、IEEE 802.20、Flash-OFDM等无线电技术。UTRA和E-UTRA是通用移动电信系统(Universal Mobile Telecommunications System,UMTS)的部分。LTE和更高级的LTE(如LTE-A)是使用E-UTRA的新UMTS版本。UTRA、E-UTRA、UMTS、LTE、LTE-A以及GSM在来自名为“第三代伙伴项目”(3rd Generation Partnership Project,3GPP)的组织的文献中描述。CDMA2000和UMB在来自名为“第三代伙伴项目2”(3GPP2)的组织的文献中描述。本文所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。然而,以下描述出于示例目的描述了NR系统,并且在以下大部分描述中使用NR术语,尽管这些技术也可应用于NR系统应用以外的应用。
以下描述提供示例而并非限定权利要求中阐述的范围、适用性或者配置。可以对所讨论的要素的功能和布置作出改变而不会脱离本公开的精神和范围。各种示例可恰适地省略、替代、或添加各种规程或组件。例如,可以按不同于所描述的次序来执行所描述的方法,并且可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
请参见图1,图1示出本公开的一些实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络设备12。其中,终端11也可以称作用户终端或用户设备(UE,User Equipment),终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(Personal Digital Assistant,PDA)、移动上网装置(Mobile Internet Device,MID)、可穿戴式设备(Wearable Device)或车载设备等终端侧设备,需要说明的是,在本公开的一些实施例中并不限定终端11的具体类型。网络设备12可以是基站和/或核心网网元,其中,上述基站可以是5G及以后版本的基站(例如:gNB、5G NR NB等),或者其他通信系统中的基站(例如:eNB、WLAN接入点、或其他接入点等),其中,基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service  Set,ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、WLAN接入点、WiFi节点或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本公开的一些实施例中仅以NR系统中的基站为例,但是并不限定基站的具体类型。
基站可在基站控制器的控制下与终端11通信,在各种示例中,基站控制器可以是核心网或某些基站的一部分。一些基站可通过回程与核心网进行控制信息或用户数据的通信。在一些示例中,这些基站中的一些可以通过回程链路直接或间接地彼此通信,回程链路可以是有线或无线通信链路。无线通信系统可支持多个载波(不同频率的波形信号)上的操作。多载波发射机能同时在这多个载波上传送经调制信号。例如,每条通信链路可以是根据各种无线电技术来调制的多载波信号。每个已调信号可在不同的载波上发送并且可携带控制信息(例如,参考信号、控制信道等)、开销信息、数据等。
基站可经由一个或多个接入点天线与终端11进行无线通信。每个基站可以为各自相应的覆盖区域提供通信覆盖。接入点的覆盖区域可被划分成仅构成该覆盖区域的一部分的扇区。无线通信系统可包括不同类型的基站(例如宏基站、微基站、或微微基站)。基站也可利用不同的无线电技术,诸如蜂窝或WLAN无线电接入技术。基站可以与相同或不同的接入网或运营商部署相关联。不同基站的覆盖区域(包括相同或不同类型的基站的覆盖区域、利用相同或不同无线电技术的覆盖区域、或属于相同或不同接入网的覆盖区域)可以交叠。
无线通信系统中的通信链路可包括用于承载上行链路(Uplink,UL)传输(例如,从终端11到网络设备12)的上行链路,或用于承载下行链路(Downlink,DL)传输(例如,从网络设备12到终端11)的下行链路。UL传输还可被称为反向链路传输,而DL传输还可被称为前向链路传输。下行链路传输可以使用授权频段、非授权频段或这两者来进行。类似地,上行链路传输可以使用有授权频段、非授权频段或这两者来进行。
在支持资源分配Mode-1的NR V2X系统中,对于dynamic grant或configured grant,基站下发的DCI中包含的HARQ ID,和SL HARQ实体中的SL进程标识(SL process ID)是不同的概念。通过DCI中的HARQ ID只 是指示了一些资源或者一些SL传输。因此终端收到基站下发的DCI调度某HARQ ID重传时,需要识别在sidelink上对应着哪些SL process ID;
对于configured grant(type-1,type-2),基站周期性地分配了一组传输资源/传输机会,但是在这些传输资源/传输机会上到底是传同一个TB还是不同的TB,给同一个接收端或者给不同的接收端是发送终端自己决定的。而对于configured grant,在周期性出现的一组资源之后,只有1比特的HARQ-ACK发送,若基站收到NACK,则无法区分V2X发送端到底哪个TB传错了,而V2X发送端在接收到基站发送的重传授权后,也无法知道在调度资源上重传哪个TB。
为解决以上问题中的至少一种,本公开的一些实施例提供了一种直通链路进程的确定方法,可以识别重传授权关联的直通链路进程,用于指导直通链路的重传。请参照图2,本公开的一些实施例提供的确定直通链路进程的方法,应用于终端,包括:
步骤21,接收网络在PDCCH上发送的第一SL授权。
步骤22,若第一SL授权指示重传,则确定所述第一SL授权关联的至少一个SL进程。
通过以上步骤,所述终端在接收到指示重传的SL授权(为了便于描述,这里称之为第一SL授权)后,将识别所述第一SL授权关联的至少一个SL进程,从而可以用于为SL重传提供相关信息。
根据本公开的至少一个实施例,在上述步骤22之前,终端接收到第一SL授权后,可以使用接收到的第一SL授权确定所述至少一个SL进程对应的MAC PDU的重传资源。
根据本公开的至少一个实施例,在上述步骤22之前,终端接收到第一SL授权后,可以按照以下方式,确定所述第一SL授权是否为指示重传的SL授权:
1)若所述第一SL授权为针对MAC实体的第一RNTI的SL授权,且所述第一SL授权中包含的第一NDI,相比于第一SL授权之前最近一次接收到的针对第一HARQ进程号的HARQ信息中包含的第二NDI,未发生翻转,则说明第一SL授权为指示重传的SL授权,此时使用接收到的第一SL授权确 定所述至少一个SL进程对应的MAC PDU的重传资源。
这里,所述第一HARQ进程号为所述第一SL授权中包含的HARQ进程号。所述至少一个SL进程对应的MAC PDU的重传资源具体可以是PSCCH期间(PSCCH duration(s))和PSSCH期间(PSSCH duration(s))。所述第一RNTI有时也被称作用于动态SL授权的DCI的RNTI(SL RNTI introduced for DCI for a dynamic grant)。
2)若所述第一SL授权为针对MAC实体的第二RNTI的SL授权,且PDCCH内容指示为激活的配置的SL授权(configured sidelink grant)的重传,则说明第一SL授权为指示重传的SL授权,此时使用接收到的第一SL授权确定所述至少一个SL进程对应的MAC PDU的重传资源。
这里,所述至少一个SL进程对应的MAC PDU的重传资源可以是PSCCH duration(s)和PSSCH duration(s)。所述第二RNTI有时也被称作用于配置的SL授权的DCI的RNTI(SL RNTI introduced for DCI for a configured grant type-2)。
本公开的一些实施例在上述步骤21中识别所述第一SL授权关联的至少一个SL进程时,具体可以包括:
1)若所述第一SL授权为针对MAC实体的第一RNTI的SL授权,且第一SL授权中包含的新数据指示NDI,相比于第一SL授权之前最近一次接收到的针对所述HARQ进程号的HARQ信息种包含的NDI,未发生翻转,则将第一SL资源或SL初传所对应的SL进程作为所述至少一个SL进程,或者,将第一HARQ进程号对应的SL进程作为所述至少一个SL进程。
这里,将第一SL资源所对应的SL进程,或者,将SL初传所对应的SL进程,或者,第一HARQ进程号对应的SL进程,作为所述至少一个SL进程。其中,所述第一SL资源具体可以是以下资源中的任一种:
A)SL初传所占用的资源或所占用的PSCCH期间和PSSCH期间(PSCCH duration(s)和PSSCH duration(s))。
B)第一SL授权之前最近一次接收到的包含第一HARQ进程号的SL授权/PDCCH指示的资源,或,PSCCH期间和PSSCH期间。即,在第一SL授权之前接收到的包含第一HARQ进程号的SL授权/PDCCH所指示的资源, 或者是,在第一SL授权之前接收到的包含第一HARQ进程号的SL授权/PDCCH所指示的PSCCH duration(s)和PSSCH duration(s)。
另外,在将第一HARQ进程号对应的SL进程作为所述至少一个SL进程时,可以预先建立HARQ进程号和第一信息之间的映射关系,所述第一信息具体可以包括SL进程号(SL process ID)、资源标识(source ID)和(destination ID)。其中,destination ID可以用接收端ID表示。进而,根据所述映射关系,确定第一HARQ进程号对应的SL进程。
2)若所述第一SL授权为针对MAC实体的第二RNTI的SL授权,且PDCCH内容指示为激活的configured sidelink grant的重传,则将第二SL资源或SL初传所对应的SL进程中的一个或多个作为所述至少一个SL进程,或者,将所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个作为所述至少一个SL进程。
这里,将第二SL资源所对应的SL进程中的一个或多个,或者,将SL初传所对应的SL进程的一个或多个,或者,将所述第一HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程。其中,所述第二SL资源具体可以是以下资源中的任一种:
A)SL初传所占用的资源或所占用的PSCCH期间和PSSCH期间(PSCCH duration(s)和PSSCH duration(s))。
B)第一HARQ进程号所对应的SL资源,或,PSCCH期间和PSSCH期间。即,所述第一HARQ进程号所对应的SL资源,或者,所述第一HARQ进程号所对应PSCCH duration(s)和PSSCH duration(s)。
在所述第一SL授权为针对MAC实体的第二RNTI的SL授权,且PDCCH内容指示为激活的configured sidelink grant的重传的情况下,本公开的一些实施例还提供了多种识别方式,识别所述第一SL授权关联的至少一个SL进程,以下提供了多种方式,本公开的一些实施例可以采用以下三种方式中的一种或多种进行识别,下面将分别进行说明。
例如,终端可以按照以下方式中的至少一种,将第二SL资源所对应的SL进程中的一个或多个作为所述至少一个SL进程:
方式一:通过终端自主确定的方式,确定第二SL资源所对应的SL进程 中的一个或多个,作为所述至少一个SL进程。
这里,方式一中由终端自主确定,例如,终端可以任意选择第二SL资源所对应的SL进程中的一个或多个作为所述至少一个SL进程。
方式二:根据接收到的至少一个物理直通链路反馈信道PSFCH,确定第二SL资源所对应的SL进程中的一个或多个,作为所述至少一个SL进程。
这里,方式二中根据PSFCH进行确定时,可以是:根据PSFCH上的反馈信息(如SL HARQ-ACK),选择第二SL资源中发送失败的资源,将选择出的资源所对应的SL进程中的一个或多个,作为所述至少一个SL进程。
例如,基站通过configured grant周期性地分配了N份SL传输资源/SL传输机会,发送端在所述N份SL传输资源/SL传输机会上共传输了M个TB,并收到接收端反馈的N个PSFCH/N个HARQ-ACK,其中只有第i个SL传输资源/SL传输机会(i=1,2..N)对应的PSFCH承载的为NACK,其余N-1个SL传输资源/SL传输机会对应的PSFCH上承载的为ACK,则终端根据收到的PSFCH(s),确定第一SL授权关联的sidelink process(s)为第i个SL传输资源/SL传输机会对应的sidelink process;
方式三:根据物理直通链路共享信道PSSCH的优先级,确定第二SL资源所对应的SL进程中的一个或多个,作为所述至少一个SL进程。
这里,方式三中,根据PSSCH的优先级进行确定时,可以是:根据PSSCH的优先级的高低顺序,从第二SL资源中选择优先级靠前的一个或多个资源,将选择出的资源所对应的SL进程,作为所述至少一个SL进程。
例如,基站通过configured grant周期性地分配了N份SL传输资源/SL传输机会,发送端在所述N份SL传输资源/SL传输机会上共传输了M个TB/MAC PDU,终端收到重传第一SL授权,则根据M个MAC PDU中包含的最高SL逻辑信道优先级,确定所述第一SL授权关联的sidelink process(s)为最高的X个(X小于等于M)SL逻辑信道优先级对应的MAC PDU对应的sidelink process(s)。
下面提供了采用上述方式一至方式三种的多种方式,将第二SL资源所对应的SL进程中的一个或多个作为所述至少一个SL进程的若干示例:
1)当采用方式一和方式二时,按照所述方式二,确定出第一数量的SL 进程;以及,按照所述方式一,从所述第一数量的SL进程中自主确定出第二数量的SL进程。这里,第一数量大于或等于第二数量。
2)当采用方式一和方式三时,按照所述方式三,确定出第三数量的SL进程;以及,按照所述方式一,从所述第三数量的SL进程中自主确定出第四数量的SL进程。这里,第三数量大于或等于第四数量。
3)当采用方式二和方式三时,按照所述方式二,确定出第五数量的SL进程;以及,按照所述方式三,从所述第五数量的SL进程中确定出第六数量的SL进程。这里,第五数量大于或等于第六数量。
4)当采用方式一、方式二和方式三时,按照所述方式二,确定出第七数量的SL进程;以及,按照所述方式三,从所述第七数量的SL进程中确定出第八数量的SL进程;以及,按照方式一,从所述第八数量的SL进程中自主确定出第九数量的SL进程。这里,第七数量大于或等于第八数量,第八数量大于或等于第九数量。
又例如,终端可以按照以下方式中的至少一种,将所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个作为所述至少一个SL进程:
方式四:通过终端自主确定的方式,确定所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程;
方式五:根据接收到的至少一个物理直通链路反馈信道PSFCH,确定所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程;
方式六:根据物理直通链路共享信道PSSCH的优先级,确定所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程。
下面提供了采用上述方式四至方式六种的多种方式,将所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个作为所述至少一个SL进程的若干示例:
1)当采用方式四和方式五时,按照所述方式五,确定出第十数量的SL进程;以及,按照所述方式四,从所述第十数量的SL进程中自主确定出第十 一数量的SL进程。这里,第十数量大于或等于十一数量。
2)当采用方式四和方式六时,按照所述方式六,确定出第十二数量的SL进程;以及,按照所述方式四,从所述第十二数量的SL进程中自主确定出第十三数量的SL进程。这里,第十二数量大于或等于十三数量。
3)当采用方式五和方式六时,按照所述方式五,确定出第十四数量的SL进程;以及,按照所述方式六,从所述第十四数量的SL进程中确定出第十五数量的SL进程。这里,第十四数量大于或等于十五数量。
4)当采用方式四、方式五和方式六时,按照所述方式五,确定出第十六数量的SL进程;以及,按照所述方式六,从所述第十六数量的SL进程中确定出第十七数量的SL进程;以及,按照方式四,从所述第十七数量的SL进程中自主确定出第十八数量的SL进程。这里,第十六数量大于或等于十七数量,十七数量大于或等于第十八数量。
另外,需要说明的是,方式四至方式六中,在确定所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个时,本公开的一些实施例可以预先建立HARQ进程号和第一信息之间的映射关系,所述第一信息具体可以包括SL进程号(SL process ID)、资源标识(source ID)和(destination ID)。其中,destination ID可以用接收端ID表示。进而,根据所述映射关系,确定第一HARQ进程号对应的SL进程。
从以上所述可以看出,本公开的一些实施例的直通链路进程的确定方法,可以通过第一SL授权中包含的HARQ ID和SL传输资源/传输机会的映射关系,以及终端收到的PSFCH和/或PSSCH的优先级,确定第一SL授权的HARQ ID对应的SL process ID,从而为SL重传提供了支持。
根据本公开的另一些实施例,本公开的一些实施例的直通链路进程的确定方法,在终端侧执行时,具体可以包括以下步骤:
a)终端接收到第一SL授权,假设第一SL授权中包含有第一HARQ进程号;
b)如果所述第一SL授权中包含的NDI和之前相同HARQ ID(即第一HARQ进程号)对应的SL授权包含的NDI相比,未发生翻转,则第一SL授权是用于调度SL重传的;
c)如果所述第一SL授权是调度SL重传的,则识别所述第一SL授权对应的SL进程号(sidelink process ID)
这里,若所述第一SL授权的CRC为SL RNTI(即前文的第一RNTI)加扰的,则表示所述第一SL授权调度的重传对应的初传为动态调度,则第一SL授权对应的sidelink process为SL初传所占用的PSCCH duration(s)and PSSCH duration(s)对应的sidelink process。或者该第一SL授权对应的sidelink process为SL初传对应的sidelink process;
若所述第一SL授权的CRC为SL cs-RNTI(即前文的第二RNTI)加扰的,则表示第一SL授调度的重传对应的初传为configured grant调度,则第一SL授权对应的sidelink process为SL初传占用的PSCCH duration(s)and PSSCH duration(s)所对应的sidelink process(s)中的一个或多个;或者第一SL授权对应的sidelink process为SL初传对应的sidelink process中的一个或多个,具体的,可以通过以下三种方式中的任一种或多种进行确定:
(1)终端可以通过自主实现的方式决定第一SL授权关联的sidelink process为SL初传所占用的PSCCH duration(s)and PSSCH duration(s)对应的sidelink process(s)中的一个或多个;或者,通过终端自主实现的方式确定第一SL授权关联的sidelink process为SL初传对应的sidelink process中的一个或多个。
(2)终端可以根据收到的PSFCH(s),决定SL初传所占用的PSCCH duration(s)and PSSCH duration(s)对应的sidelink process(s)中的一个或多个与所述第一SL授权关联;或者终端根据收到的PSFCH(s),决定第一SL授权关联的sidelink process为SL初传对应的sidelink process中的一个或多个。
(3)终端可以根据不同PSSCH(s)的优先级,决定所述第一SL授权关联的sidelink process为SL初传所占用的PSCCH duration(s)and PSSCH duration(s)对应的sidelink process(s)中的一个或多个;或者,终端可以根据不同PSSCH(s)的优先级,决定第一SL授权关联的sidelink process为SL初传对应的sidelink process中的一个或多个;
d)根据所述第一SL授权关联的SL进程号,将所述第一SL授权传送给关联的SL进程(sidelink process);
e)指示关联的SL进程(sidelink process)根据所述第一SL授权进行重传。
下面提供识别第一SL授权关联的至少一个SL进程的若干示例:
示例1:
若第一SL授权包含的NDI和之前相同HARQ ID对应的SL授权包含的NDI相比,未发生翻转,另外,第一SL授权的CRC为SL RNTI(第一RNTI)加扰的,则表示所述第一SL授权调度的重传对应的初传为动态调度,此时,所述第一SL授权关联的sidelink process为SL初传所占用的PSCCH duration(s)and PSSCH duration(s)对应的sidelink process;或者该第一SL授权关联的sidelink process为SL初传对应的sidelink process;
示例2:
若第一SL授权包含的NDI和之前相同HARQ ID对应的SL授权包含的NDI相比,未发生翻转,另外,第一SL授权的CRC为SL cs-RNTI(第二RNTI)加扰的,则表示第一SL授权调度的重传对应的初传为configured grant调度,则该第一SL授权关联的sidelink process(s)为SL初传所占用的PSCCH duration(s)and PSSCH duration(s)对应的sidelink process(s)中的一个或多个;或者该第一SL授权关联的sidelink process(s)为SL初传对应的sidelink process(s)中的一个或多个。
以上介绍了本公开的一些实施例的各种方法。下面将进一步提供实施上述方法的装置。
请参照图3,本公开的一些实施例提供了一种终端30,包括:
接收模块31,用于接收网络在物理层下行控制信道PDCCH上发送的第一直通链路SL授权;
确定模块32,用于若第一SL授权指示重传,则确定所述第一SL授权关联的至少一个SL进程。
可选的,所述确定模块,还用于:
若所述第一SL授权为针对MAC实体的第一RNTI的SL授权,且第一SL授权中包含的新数据指示NDI,相比于第一SL授权之前最近一次接收到的针对所述第一HARQ进程号的HARQ信息种包含的NDI,未发生翻转,则 将第一SL资源或SL初传所对应的SL进程作为所述至少一个SL进程,或者,将第一HARQ进程号对应的SL进程作为所述至少一个SL进程;
或者,
若所述第一SL授权为针对MAC实体的第二RNTI的SL授权,且PDCCH内容指示为激活的configured sidelink grant的重传,则将第二SL资源或SL初传所对应的SL进程中的一个或多个作为所述至少一个SL进程,或者,将所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个作为所述至少一个SL进程。
可选的,所述第一SL资源为以下资源中的任一种:
SL初传所占用的资源或所占用的PSCCH期间和PSSCH期间;
第一SL授权之前最近一次接收到的的包含第一HARQ进程号的SL授权/PDCCH指示的资源,或,PSCCH期间和PSSCH期间;
所述第二SL资源为以下资源中的任一种:
SL初传所占用的资源或所占用的PSCCH期间和PSSCH期间;
第一HARQ进程号所对应的SL资源,或,PSCCH期间和PSSCH期间。
可选的,所述确定模块,还用于:
按照以下方式中的至少一种,将第二SL资源所对应的SL进程中的一个或多个作为所述至少一个SL进程:
方式一:通过终端自主确定的方式,确定第二SL资源所对应的SL进程中的一个或多个,作为所述至少一个SL进程;
方式二:根据接收到的至少一个物理直通链路反馈信道PSFCH,确定第二SL资源所对应的SL进程中的一个或多个,作为所述至少一个SL进程;
方式三:根据物理直通链路共享信道PSSCH的优先级,确定第二SL资源所对应的SL进程中的一个或多个,作为所述至少一个SL进程。
可选的,所述确定模块,还用于:
当采用方式一和方式二时,按照所述方式二,确定出第一数量的SL进程;以及,按照所述方式一,从所述第一数量的SL进程中自主确定出第二数量的SL进程;
当采用方式一和方式三时,按照所述方式三,确定出第三数量的SL进 程;以及,按照所述方式一,从所述第三数量的SL进程中自主确定出第四数量的SL进程;
当采用方式二和方式三时,按照所述方式二,确定出第五数量的SL进程;以及,按照所述方式三,从所述第五数量的SL进程中确定出第六数量的SL进程;
当采用方式一、方式二和方式三时,按照所述方式二,确定出第七数量的SL进程;以及,按照所述方式三,从所述第七数量的SL进程中确定出第八数量的SL进程;以及,按照方式一,从所述第八数量的SL进程中自主确定出第九数量的SL进程。
可选的,所述确定模块,还用于:
按照以下方式中的至少一种,将所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个作为所述至少一个SL进程:
方式四:通过终端自主确定的方式,确定所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程;
方式五:根据接收到的至少一个物理直通链路反馈信道PSFCH,确定所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程;
方式六:根据物理直通链路共享信道PSSCH的优先级,确定所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程。
可选的,所述确定模块,还用于:
当采用方式四和方式五时,按照所述方式五,确定出第十数量的SL进程;以及,按照所述方式四,从所述第十数量的SL进程中自主确定出第十一数量的SL进程;
当采用方式四和方式六时,按照所述方式六,确定出第十二数量的SL进程;以及,按照所述方式四,从所述第十二数量的SL进程中自主确定出第十三数量的SL进程;
当采用方式五和方式六时,按照所述方式五,确定出第十四数量的SL进程;以及,按照所述方式六,从所述第十四数量的SL进程中确定出第十五数 量的SL进程;
当采用方式四、方式五和方式六时,按照所述方式五,确定出第十六数量的SL进程;以及,按照所述方式六,从所述第十六数量的SL进程中确定出第十七数量的SL进程;以及,按照方式四,从所述第十七数量的SL进程中自主确定出第十八数量的SL进程。
可选的,所述终端还包括:
资源确定模块,用于在识别所述第一SL授权关联的至少一个SL进程之前,使用接收到的第一SL授权确定所述至少一个SL进程对应的MAC PDU的重传资源。
可选的,所述资源确定模块,还用于在满足以下任一条件时,使用接收到的第一SL授权确定所述至少一个SL进程对应的MAC PDU的重传资源:
所述第一SL授权为针对媒体接入控制MAC实体的第一无线网络临时标识RNTI的SL授权,且所述第一SL授权中包含的第一新数据指示NDI,相比于第一SL授权之前最近一次接收到的针对第一HARQ进程号的HARQ信息中包含的第二NDI,未发生翻转;
或者,
所述第一SL授权为针对MAC实体的第二RNTI的SL授权,且第一SL授权指示为激活的配置的SL授权configured sidelink grant的重传。
需要说明的是,该终端实施例是与上述方法实施例相对应的装置,上述方法实施例中所有实现方式均适用于该终端的实施例中,也能达到相同或类似的技术效果。
请参照图4,本公开的一些实施例提供的终端的一种结构示意图,该终端400包括:处理器401、收发机402、存储器403、用户接口404和总线接口。
在本公开的一些实施例中,终端400还包括:存储在存储器上403并可在处理器401上运行的程序。
所述处理器401执行所述程序时实现以下步骤:
接收网络在物理层下行控制信道PDCCH上发送的第一直通链路SL授权;
若第一SL授权指示重传,则确定所述第一SL授权关联的至少一个SL 进程。
可理解的,本公开的一些实施例中,所述计算机程序被处理器401执行时可实现上述图2所示的直通链路进程的确定方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
在图4中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器401代表的一个或多个处理器和存储器403代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机402可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口404还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器401负责管理总线架构和通常的处理,存储器403可以存储处理器401在执行操作时所使用的数据。
在本公开的一些实施例中,还提供了一种计算机可读存储介质,其上存储有程序,该程序被处理器执行时实现以下步骤:
接收网络在物理层下行控制信道PDCCH上发送的第一直通链路SL授权;
若第一SL授权指示重传,则确定所述第一SL授权关联的至少一个SL进程。
该程序被处理器执行时能实现上述确定直通链路进程的方法中的所有实现方式,且能达到相同的技术效果,为避免重复,此处不再赘述。
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公开的范围。
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,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应 过程,在此不再赘述。
在本申请所提供的实施例中,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系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
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公开实施例方案的目的。
另外,在本公开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。基于这样的理解,本公开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)执行本公开各个实施例所述的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、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
可以理解的是,本公开实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现,模块、单元、子模块、子单元等可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits,ASIC)、数字信号处理器(Digital Signal Processing,DSP)、数字信号处理设备(DSP Device,DSPD)、可编程逻辑设备(Programmable Logic Device,PLD)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)、 通用处理器、控制器、微控制器、微处理器、用于执行本公开所述功能的其它电子单元或其组合中。
以上所述,仅为本公开的具体实施方式,但本公开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公开揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本公开的保护范围之内。因此,本公开的保护范围应以权利要求的保护范围为准。

Claims (21)

  1. 一种确定直通链路进程的方法,应用于终端,包括:
    接收网络在物理层下行控制信道PDCCH上发送的第一直通链路SL授权;
    若第一SL授权指示重传,则确定所述第一SL授权关联的至少一个SL进程。
  2. 如权利要求1所述的方法,其中,确定所述第一SL授权关联的至少一个SL进程,包括:
    若所述第一SL授权为针对介质访问控制层MAC实体的第一无线网络临时标识RNTI的SL授权,且第一SL授权中包含的新数据指示NDI,相比于第一SL授权之前最近一次接收到的针对所述第一混合自动重传请求HARQ进程号的HARQ信息种包含的NDI,未发生翻转,则将第一SL资源或SL初传所对应的SL进程作为所述至少一个SL进程,或者,将第一HARQ进程号对应的SL进程作为所述至少一个SL进程;
    或者,
    若所述第一SL授权为针对MAC实体的第二RNTI的SL授权,且PDCCH内容指示为激活的配置的直通链路授权(configured sidelink grant)的重传,则将第二SL资源或SL初传所对应的SL进程中的一个或多个作为所述至少一个SL进程,或者,将所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个作为所述至少一个SL进程。
  3. 如权利要求2所述的方法,其中,
    所述第一SL资源为以下资源中的任一种:
    SL初传所占用的资源或所占用的物理直通链路控制信道PSCCH期间PSCCH duration(s)和物理直通链路共享信道PSSCH期间PSSCH duration(s);
    第一SL授权之前最近一次接收到的包含第一HARQ进程号的SL授权/PDCCH指示的资源,或,PSCCH期间PSCCH duration(s)和PSSCH期间PSSCH duration(s);
    所述第二SL资源为以下资源中的任一种:
    SL初传所占用的资源或所占用的PSCCH期间PSCCH duration(s)和PSSCH期间PSSCH duration(s);
    第一HARQ进程号所对应的SL资源,或,PSCCH期间PSCCH duration(s)和PSSCH期间PSSCH duration(s)。
  4. 如权利要求3所述的方法,其中,按照以下方式中的至少一种,将第二SL资源所对应的SL进程中的一个或多个作为所述至少一个SL进程:
    方式一:通过终端自主确定的方式,确定第二SL资源所对应的SL进程中的一个或多个,作为所述至少一个SL进程;
    方式二:根据接收到的至少一个物理直通链路反馈信道PSFCH,确定第二SL资源所对应的SL进程中的一个或多个,作为所述至少一个SL进程;
    方式三:根据物理直通链路共享信道PSSCH的优先级,确定第二SL资源所对应的SL进程中的一个或多个,作为所述至少一个SL进程。
  5. 如权利要求4所述的方法,其中,
    当采用方式一和方式二时,按照所述方式二,确定出第一数量的SL进程;以及,按照所述方式一,从所述第一数量的SL进程中自主确定出第二数量的SL进程;
    当采用方式一和方式三时,按照所述方式三,确定出第三数量的SL进程;以及,按照所述方式一,从所述第三数量的SL进程中自主确定出第四数量的SL进程;
    当采用方式二和方式三时,按照所述方式二,确定出第五数量的SL进程;以及,按照所述方式三,从所述第五数量的SL进程中确定出第六数量的SL进程;
    当采用方式一、方式二和方式三时,按照所述方式二,确定出第七数量的SL进程;以及,按照所述方式三,从所述第七数量的SL进程中确定出第八数量的SL进程;以及,按照方式一,从所述第八数量的SL进程中自主确定出第九数量的SL进程。
  6. 如权利要求3所述的方法,其中,按照以下方式中的至少一种,将所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个作为所述至少一个SL进程:
    方式四:通过终端自主确定的方式,确定所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程;
    方式五:根据接收到的至少一个物理直通链路反馈信道PSFCH,确定所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程;
    方式六:根据物理直通链路共享信道PSSCH的优先级,确定所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程。
  7. 如权利要求6所述的方法,其中,
    当采用方式四和方式五时,按照所述方式五,确定出第十数量的SL进程;以及,按照所述方式四,从所述第十数量的SL进程中自主确定出第十一数量的SL进程;
    当采用方式四和方式六时,按照所述方式六,确定出第十二数量的SL进程;以及,按照所述方式四,从所述第十二数量的SL进程中自主确定出第十三数量的SL进程;
    当采用方式五和方式六时,按照所述方式五,确定出第十四数量的SL进程;以及,按照所述方式六,从所述第十四数量的SL进程中确定出第十五数量的SL进程;
    当采用方式四、方式五和方式六时,按照所述方式五,确定出第十六数量的SL进程;以及,按照所述方式六,从所述第十六数量的SL进程中确定出第十七数量的SL进程;以及,按照方式四,从所述第十七数量的SL进程中自主确定出第十八数量的SL进程。
  8. 如权利要求1所述的方法,其中,在确定所述第一SL授权关联的至少一个SL进程的步骤之前,所述方法还包括:
    使用接收到的第一SL授权确定所述至少一个SL进程对应的介质访问控制层协议数据单元MAC PDU的重传资源。
  9. 如权利要求8所述的方法,其中,在满足以下任一条件时,使用接收到的第一SL授权确定所述至少一个SL进程对应的MAC PDU的重传资源:
    所述第一SL授权为针对媒体接入控制MAC实体的第一无线网络临时标 识RNTI的SL授权,且所述第一SL授权中包含的第一新数据指示NDI,相比于第一SL授权之前最近一次接收到的针对第一HARQ进程号的HARQ信息中包含的第二NDI,未发生翻转;
    或者,
    所述第一SL授权为针对MAC实体的第二RNTI的SL授权,且第一SL授权指示为激活的配置的SL授权configured sidelink grant的重传。
  10. 一种终端,包括:
    接收模块,用于接收网络在物理层下行控制信道PDCCH上发送的第一直通链路SL授权;
    确定模块,用于若第一SL授权指示重传,则确定所述第一SL授权关联的至少一个SL进程。
  11. 如权利要求10所述的终端,其中,所述确定模块,还用于:
    若所述第一SL授权为针对MAC实体的第一RNTI的SL授权,且第一SL授权中包含的新数据指示NDI,相比于第一SL授权之前最近一次接收到的针对所述第一HARQ进程号的HARQ信息种包含的NDI,未发生翻转,则将第一SL资源或SL初传所对应的SL进程作为所述至少一个SL进程,或者,将第一HARQ进程号对应的SL进程作为所述至少一个SL进程;
    或者,
    若所述第一SL授权为针对MAC实体的第二RNTI的SL授权,且PDCCH内容指示为激活的configured sidelink grant的重传,则将第二SL资源或SL初传所对应的SL进程中的一个或多个作为所述至少一个SL进程,或者,将所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个作为所述至少一个SL进程。
  12. 如权利要求11所述的终端,其中,
    所述第一SL资源为以下资源中的任一种:
    SL初传所占用的资源或所占用的PSCCH期间和PSSCH期间;
    第一SL授权之前最近一次接收到的的包含第一HARQ进程号的SL授权/PDCCH指示的资源,或,PSCCH期间和PSSCH期间;
    所述第二SL资源为以下资源中的任一种:
    SL初传所占用的资源或所占用的PSCCH期间和PSSCH期间;
    第一HARQ进程号所对应的SL资源,或,PSCCH期间和PSSCH期间。
  13. 如权利要求12所述的终端,其中,所述确定模块,还用于:
    按照以下方式中的至少一种,将第二SL资源所对应的SL进程中的一个或多个作为所述至少一个SL进程:
    方式一:通过终端自主确定的方式,确定第二SL资源所对应的SL进程中的一个或多个,作为所述至少一个SL进程;
    方式二:根据接收到的至少一个物理直通链路反馈信道PSFCH,确定第二SL资源所对应的SL进程中的一个或多个,作为所述至少一个SL进程;
    方式三:根据物理直通链路共享信道PSSCH的优先级,确定第二SL资源所对应的SL进程中的一个或多个,作为所述至少一个SL进程。
  14. 如权利要求13所述的终端,其中,所述确定模块,还用于:
    当采用方式一和方式二时,按照所述方式二,确定出第一数量的SL进程;以及,按照所述方式一,从所述第一数量的SL进程中自主确定出第二数量的SL进程;
    当采用方式一和方式三时,按照所述方式三,确定出第三数量的SL进程;以及,按照所述方式一,从所述第三数量的SL进程中自主确定出第四数量的SL进程;
    当采用方式二和方式三时,按照所述方式二,确定出第五数量的SL进程;以及,按照所述方式三,从所述第五数量的SL进程中确定出第六数量的SL进程;
    当采用方式一、方式二和方式三时,按照所述方式二,确定出第七数量的SL进程;以及,按照所述方式三,从所述第七数量的SL进程中确定出第八数量的SL进程;以及,按照方式一,从所述第八数量的SL进程中自主确定出第九数量的SL进程。
  15. 如权利要求12所述的终端,其中,所述确定模块,还用于:
    按照以下方式中的至少一种,将所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个作为所述至少一个SL进程:
    方式四:通过终端自主确定的方式,确定所述第一SL授权中包含的第一 HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程;
    方式五:根据接收到的至少一个物理直通链路反馈信道PSFCH,确定所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程;
    方式六:根据物理直通链路共享信道PSSCH的优先级,确定所述第一SL授权中包含的第一HARQ进程号对应的SL进程中的一个或多个,作为所述至少一个SL进程。
  16. 如权利要求15所述的终端,其中,所述确定模块,还用于:
    当采用方式四和方式五时,按照所述方式五,确定出第十数量的SL进程;以及,按照所述方式四,从所述第十数量的SL进程中自主确定出第十一数量的SL进程;
    当采用方式四和方式六时,按照所述方式六,确定出第十二数量的SL进程;以及,按照所述方式四,从所述第十二数量的SL进程中自主确定出第十三数量的SL进程;
    当采用方式五和方式六时,按照所述方式五,确定出第十四数量的SL进程;以及,按照所述方式六,从所述第十四数量的SL进程中确定出第十五数量的SL进程;
    当采用方式四、方式五和方式六时,按照所述方式五,确定出第十六数量的SL进程;以及,按照所述方式六,从所述第十六数量的SL进程中确定出第十七数量的SL进程;以及,按照方式四,从所述第十七数量的SL进程中自主确定出第十八数量的SL进程。
  17. 如权利要求10所述的终端,还包括:
    资源确定模块,用于在确定所述第一SL授权关联的至少一个SL进程之前,使用接收到的第一SL授权确定所述至少一个SL进程对应的MAC PDU的重传资源。
  18. 如权利要求17所述的终端,其中,
    所述资源确定模块,还用于在满足以下任一条件时,使用接收到的第一SL授权确定所述至少一个SL进程对应的MAC PDU的重传资源:
    所述第一SL授权为针对媒体接入控制MAC实体的第一无线网络临时标 识RNTI的SL授权,且所述第一SL授权中包含的第一新数据指示NDI,相比于第一SL授权之前最近一次接收到的针对第一HARQ进程号的HARQ信息中包含的第二NDI,未发生翻转;
    或者,
    所述第一SL授权为针对MAC实体的第二RNTI的SL授权,且第一SL授权指示为激活的配置的SL授权configured sidelink grant的重传。
  19. 一种终端,包括收发机和处理器,其中,
    所述收发机,用于接收网络在物理层下行控制信道PDCCH上发送的第一直通链路SL授权;
    所述处理器,用于若第一SL授权指示重传,则确定所述第一SL授权关联的至少一个SL进程。
  20. 一种终端,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序,所述程序被所述处理器执行时实现如权利要求1至9任一项所述的确定直通链路进程的方法的步骤。
  21. 一种计算机可读存储介质,其中,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1至9任一项所述的确定直通链路进程的方法的步骤。
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