WO2020030177A1 - 车联网中直通链路的资源配置方法及装置 - Google Patents

车联网中直通链路的资源配置方法及装置 Download PDF

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Publication number
WO2020030177A1
WO2020030177A1 PCT/CN2019/100191 CN2019100191W WO2020030177A1 WO 2020030177 A1 WO2020030177 A1 WO 2020030177A1 CN 2019100191 W CN2019100191 W CN 2019100191W WO 2020030177 A1 WO2020030177 A1 WO 2020030177A1
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WIPO (PCT)
Prior art keywords
link
bwp
resource pool
information
sidelink
Prior art date
Application number
PCT/CN2019/100191
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English (en)
French (fr)
Inventor
陈琳
汪梦珍
张博源
黄莹
罗薇
邹伟
Original Assignee
中兴通讯股份有限公司
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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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to KR1020217005829A priority Critical patent/KR20210042930A/ko
Priority to EP19847454.6A priority patent/EP3836686A4/en
Publication of WO2020030177A1 publication Critical patent/WO2020030177A1/zh
Priority to US17/172,831 priority patent/US20210168814A1/en

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    • 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
    • H04W72/20Control channels or signalling for resource management
    • 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]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/53Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044Arrangements for allocating sub-channels of the transmission path allocation of payload
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0094Indication of how sub-channels of the path are allocated
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18Negotiating wireless communication parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18Negotiating wireless communication parameters
    • H04W28/20Negotiating bandwidth
    • 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
    • H04W72/04Wireless 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
    • H04W72/51Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/11Allocation or use of connection identifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/14Direct-mode setup
    • 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
    • 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 present application relates to the field of communications, for example, to a method and a device for resource configuration of a direct link in a vehicle network.
  • the Internet of Vehicles refers to a large system network for wireless communication and information exchange between vehicles and vehicles, pedestrians, roadside equipment and the Internet in accordance with agreed communication protocols and data interaction standards. Communication through the Internet of Vehicles can enable vehicles to obtain driving safety, improve traffic efficiency, and obtain convenience or entertainment information.
  • vehicle-to-vehicle communication includes three different types: Vehicle-to-Vehicle (V2V), and vehicle-roadside equipment / network infrastructure (Vehicle-to-Vehicle) to-Infrastructure / Vehicle-to-Network (referred to as V2I / V2N), and vehicle-to-pedestrian (V2P), are collectively referred to as V2X communication.
  • V2X communication method is one of the implementation methods of the V2X standard, that is, service data is not transmitted by the base station and the core network, and is directly transmitted by the source user equipment to the target user equipment through the air interface.
  • This V2X communication method is referred to as PC5-based Or V2X Sidelink communication.
  • V2X communication scenarios have further expanded and have higher performance requirements.
  • the advanced V2X business is mainly divided into 4 categories: vehicle platooning, extended sensors, advanced driving (semi-automated, full-automated driving), and remote driving (remote) driving).
  • the required performance requirements the data packet size supports 50 to 12000 bytes, the transmission rate is 2 to 50 messages per second, the maximum end-to-end delay is 3-500 milliseconds, the reliability is 90% -99.999%, and the data rate is 0.5-1000Mbps And the transmission range supports 50-1000 meters.
  • 3GPP has set up a research on the Internet of Vehicles communication based on the 5th generation of mobile communication technology (5G), but the related technologies have not yet existed. Communication.
  • Embodiments of the present invention provide a method and an apparatus for resource allocation of a direct link in a car network, so as to at least solve a problem that the vehicle network communication based on a 5G direct link Sidelink does not exist in related technologies.
  • a method for resource configuration of a direct link in a car network includes: a terminal receives a side link bandwidth part (Sidelink Bandwith Part / Side Link BWP) / resource pool configuration information; the terminal is configured according to The received Sidelink BWP / resource pool configuration information performs Sidelink data transmission.
  • a side link bandwidth part Sidelink Bandwith Part / Side Link BWP
  • resource pool configuration information performs Sidelink data transmission.
  • a device for resource configuration of a through link in a car network including: a first receiving module configured to receive the sidelink BWP / resource pool configuration information of the through link; and a transmission module according to the receiving The Sidelink BWP / resource pool configuration information obtained is used for Sidelink data transmission.
  • a storage medium stores a computer program, wherein the computer program is configured to execute the resource allocation method of the direct link in the Internet of Vehicles mentioned above when running. Steps in the examples.
  • an electronic device which includes a memory and a processor.
  • the memory stores a computer program
  • the processor is configured to run the computer program to execute the above-mentioned vehicle networking. Steps in an embodiment of a method for configuring a resource of a straight-through link.
  • the terminal can receive Sidelink BWP / resource pool configuration information, and perform Sidelink data transmission based on the sidelink BWP / resource pool configuration information, thereby enabling 5G-based direct-link vehicle-to-vehicle communication to be resolved, which has not yet resolved There is the problem of vehicle-to-vehicle communication based on 5G direct link Sidelink, which fills the gap in related technologies.
  • FIG. 1 is a block diagram of a hardware structure of a terminal for a method for configuring a resource of a through link in a vehicle-to-vehicle network according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a resource configuration method for a through link in a vehicle-to-vehicle network according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a Sidelink BWP according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of a BWP selection process of a Sidelink corresponding to a data packet or a logical channel according to an embodiment of the present invention
  • FIG. 5 is a flowchart of a UE requesting a Sidelink to send a BWP configuration according to an embodiment of the present invention
  • FIG. 6 is a flowchart of a BWP selection process of a Sidelink corresponding to a data packet or a logical channel according to an embodiment of the present invention
  • FIG. 7 is a flowchart of a UE requesting a sidelink to receive a BWP configuration according to an embodiment of the present invention
  • FIG. 8 is a schematic diagram of an initial BWP and a normal BWP according to an embodiment of the present invention.
  • FIG. 9 is a flowchart of a Unilink communication UE negotiating a Sidelink BWP and / or a resource pool for Sidelink data transmission according to an embodiment of the present invention
  • FIG. 10 is a flowchart of a Sidelink resource configuration of a UE receiving a base station according to an embodiment of the present invention.
  • FIG. 11 is a flowchart of a UE requesting V2X Sidelink configuration information according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a resource configuration apparatus for a direct link in a vehicle-to-vehicle network according to an embodiment of the present invention.
  • FIG. 1 is a block diagram of a hardware structure of a terminal for a method for configuring a resource of a through link in a vehicle-to-vehicle network according to an embodiment of the present invention.
  • the terminal 10 may include one or more (only one shown in FIG.
  • a processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA
  • the terminal may further include a transmission device 106 and an input-output device 108 for communication functions.
  • the structure shown in FIG. 1 is only schematic, and it does not limit the structure of the foregoing terminal.
  • the terminal 10 may further include more or fewer components than those shown in FIG. 1, or have a different configuration from that shown in FIG. 1.
  • the memory 104 may be used to store a computer program, for example, a software program and a module of application software, such as a computer program corresponding to a method for configuring a resource of a direct link in a car network according to an embodiment of the present invention.
  • the processor 102 is stored in the memory 104 by running.
  • the memory 104 may include a high-speed random access memory, and may further include a non-volatile memory, such as one or more magnetic storage devices, a flash memory, or other non-volatile solid-state memory.
  • the memory 104 may further include memories remotely provided with respect to the processor 102, and these remote memories may be connected to the terminal 10 through a network.
  • Examples of the above network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • the transmission device 106 is used for receiving or transmitting data via a network.
  • the above-mentioned specific examples of the network may include a wireless network provided by a communication provider of the terminal 10.
  • the transmission device 106 includes a network adapter (Network Interface Controller, NIC for short), which can be connected to other network equipment through a base station so as to communicate with the Internet.
  • the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet in a wireless manner.
  • RF radio frequency
  • FIG. 2 is a flowchart of a resource configuration method for a direct link in a vehicle networking system according to an embodiment of the present invention, as shown in FIG. As shown in Figure 2, the process includes the following steps.
  • Step S202 The terminal receives the side link BWP / resource pool configuration information.
  • Step S204 The terminal performs Sidelink data transmission according to the received Sidelink BWP / resource pool configuration information.
  • the terminal can receive Sidelink BWP / resource pool configuration information and perform Sidelink data transmission according to the sidelink BWP / resource pool configuration information, thereby enabling 5G direct link-based vehicle networking communication to solve related issues.
  • the technology there is no problem of vehicle-to-vehicle communication based on the 5G direct link Sidelink, which fills the gap in the related technology.
  • the Sidelink BWP configuration information involved in this embodiment includes at least one of the following: BWP index, BWP bandwidth, BWP location, subcarrier interval, cyclic prefix, one or more target identifiers / short distance service Packet priority (Proximity, Service, Packet, Priority, ProSe, Packet, Priority, PPPP) / 5G Service Quality Indication (5G Quality of Service Indication, 5G QoS Indication, 5QI) / Quality of Service Service Flow , QFI) / Packet Delay Budget (PDB) / priority information.
  • SidelinkBWP configuration information also includes Sidelink and BWP mapping information, which indicates the mapping relationship between the target identifier / PPPP / 5QI / QFI / PDB / priority information and the subcarrier interval.
  • the manner in which the terminal performs Sidelink data transmission according to the received Sidelink BWP / resource pool configuration information in step S204 may be: the terminal determines to send data according to the received Sidelink BWP configuration information. / Received Sidelink BWP and / or Sidelink resource pool.
  • the method in this embodiment may further include: the terminal sends request information to the base station;
  • the request information includes at least one of the following: a V2X related system information (SI) request; Sidelink synchronization, and / or Sidelink discovery, and / or Sidelink broadcast / multicast communication, and / or sidelink unicast communication resources Configuration request; LTE Sidelink resource configuration request; Interest indication for Sidelink discovery transmission and / or reception; Interest indication for Sidelink unicast communication transmission and / or reception; Interest indication for Sidelink multicast / broadcast communication transmission and / or reception ; Sidelink unicast communication target identifier or Sidelink broadcast / multicast communication target identifier; PPPP / 5QI / QFI / PDB / priority / Packet error rate (PER) / Guaranteed flow bit rate (GFBR) / Policy-Based Routing (PBR) / Address Resolution Protocol (ARP); subcarrier interval information.
  • SI V2X related system information
  • each sidelink unicast communication target identifier at least one of the following information is included: the unicast peer UE identifier, the geographic location of the peer UE, and / or the beam index / beam index / beam direction information.
  • the Sidelink BWP / resource pool information includes at least one of the following: synchronous Sidelink BWP, broadcast Sidelink BWP / resource pool, multicast Sidelink BWP / resource pool, unicast Sidelink BWP / resource pool.
  • the Sidelink BWP / resource pool in this embodiment further includes: an initial Sidelink BWP / resource pool; wherein the initial Sidelink BWP / resource pool is used for Sidelink unicast connection establishment and / or unicast Data transmission resource configuration signaling sends or receives the corresponding sidelink BWP / resource pool.
  • the unicast data transmission resource configuration includes: the first terminal sends to the second terminal the V2X service information carrying the available Sidelink BWP and / or the Sidelink resource pool; the first terminal receives the acceptable V2X service sent by the second terminal Information and / or Sidelink BWP / resource pool configuration that supports sending and / or receiving.
  • the method of this embodiment may further include: Step S106, the terminal according to the target identifier corresponding to the data packet / logical channel / PPPP / 5QI / QFI / PDB / priority information or available sub-nodes Carrier interval information and Sidelink BWP configuration information select the Sidelink BWP / resource pool corresponding to the target identifier / PPPP / 5QI / QFI / PDB / priority / available subcarrier interval for data transmission; or, step S108, the terminal receives the received data according to its own interest.
  • the target identifier corresponding to the service / PPPP / 5QI / QFI / PDB / priority information or subcarrier interval information determines the Sidelink BWP / resource pool that is monitored or received; or, in step S110, the terminal receives the activation of the SL_BWP / instructed by the base station through RRC signaling.
  • the terminal receives the SLBWP / resource pool index indicated by the base station via DCI; or, step S114, the terminal receives the SL transmitted by the PC5 signaling and / or receives BWP / resource pool information / index; Or, in step S116, the terminal receives the activated / switched SLBWP / resource pool index included in the Sidelink Control Information (SCI); or, step S118 The terminal receives the inactivity timer configuration sent by the base station. When the inactivity timer expires, the terminal returns to the unicast initial Sidelink BWP / resource pool.
  • SCI Sidelink Control Information
  • Sidelink BWP multiplexes the same Uu BWP with paging and system information (SI); and / or, for Sidelink, Uu port uplink (Uplink, UL) resources are used.
  • SI paging and system information
  • Uplink, UL Uu port uplink
  • Scenario configure the same Sidelink BWP and UL BWP, or Sidelink BWP and UL BWP coincide in the frequency domain; and / or, for the scenario where Sidelink uses dedicated PC5carrier, Sidelink BWP and Uu port BWP are configured independently.
  • the Sidelink resource pool configuration information involved in this embodiment includes at least one of the following: time-frequency domain position of Sidelink resources, time-frequency domain position information of SCI resources, time-frequency domain position information of data resources, subcarrier interval information, and unicast / Multicast / broadcast indication.
  • the Sidelink resource pool configuration information includes at least one of the following: sending and / or receiving resource pool configuration information of a terminal camping or serving cell, sending and / or receiving resource pool configuration information of an adjacent cell / adjacent frequency, LTE and Sidelink corresponding to the new air interface (New Radio, NR) sends and / or receives resource pool configuration information, Sidelink discovers sends and / or receives resource pool configuration information, Sidelink communication sends and / or receives resource pool configuration information, Sidelink multicast / Broadcast / Unicast Send and / or receive Sidelink resource pool configuration information.
  • New Radio, NR New Radio
  • the method in this embodiment may further include: Step S120: The terminal receives a Sidelink bearer and / or logical channel configuration information sent by a base station. Step S122: The terminal sends a scheduling request (Scheduling Request, SR) requesting a Sidelink resource.
  • Step S120 The terminal receives a Sidelink bearer and / or logical channel configuration information sent by a base station.
  • SR scheduling request
  • the terminal Before the terminal sends the SR requesting the Sidelink resource, the terminal receives the SR configuration information in at least one of the following ways: the terminal receives the mapping information of the Sidelink BWP resource and the SR resource configured by the base station; or, the terminal receives the dedicated Request the SR configuration of the Sidelink communication / discovery resources; or, the system reserves a logical channel identifier (LCID) value to request the request of the Sidelink discovery and / or communication resources; or, the terminal receives the V2X frequency point sent by the base station and the SR resource. Mapping relationship.
  • LCID logical channel identifier
  • the method of this embodiment may further include: Step S124, the terminal sends a Sidelink Buffer Status Report (Buffer Status Report (BSR)) to the base station, where the Sidelink BSR includes: a carrier interval index Or SL BWP ID.
  • BSR Sidelink Buffer Status Report
  • the terminal receives the Sidelink grant DCI sent by the base station, where the Sidelink grant DCI includes a sidelink sending resource pool identifier / index and / or a sidelink BWP identifier / index corresponding to the resource.
  • step S128 after the terminal receives the Sidelink grant DCI sent by the base station, the terminal determines the sidelink sending resource pool and / or sidelink BWP corresponding to the sidelink grant.
  • Step S130 The terminal sends the corresponding subcarrier interval / target identifier / PPPP / 5QI / QFI according to the determined sidelink to the resource pool and / or the subcarrier interval / target identifier / PPPP / 5QI / QFI / PDB / priority information corresponding to the sidelink.
  • the data of the logical channel of / PDB / priority are assembled into a media access control layer protocol data unit (MAC PDU) and sent by Sidelink.
  • MAC PDU media access control layer protocol data unit
  • the method in this embodiment may further include: Step S132, the terminal sends Sidelink V2X Semi-Persistent Scheduling (SPS) assistance information to the base station; and step S134, the terminal receives the information sent by the base station. Sidelink V2X SPS configuration.
  • SPS Sidelink V2X Semi-Persistent Scheduling
  • the Sidelink V2X SPS auxiliary information includes at least one of the following: SPS type indication, duration, 5QI / QFI / PDB / delay / critical / Priority, and available subcarrier interval.
  • the Sidelink V2X SPS configuration includes at least one of the following: SPS period, offset, Sidelink BWP / resource pool identifier / index corresponding to SPS resources, frequency domain resource location and size, and validity period.
  • NR V2X includes Sidelink unicast, Sidelink multicast, and sidelink broadcast.
  • Sidelink V2X communication can be divided into unicast, multicast and broadcast.
  • Sidelink unicast communication usually requires that two UEs performing unicast communication first discover each other and then initiate unicast-based sidelink V2X communication.
  • Sidelink discovery is also based on broadcast transmission.
  • the Sidelink broadcast generally refers to the Sidelink broadcast communication and the Sidelink discovery.
  • This embodiment provides a system solution based on 5G NR for NR-based Sidelink resource pool configuration, Sidelink, BWP, sidelink resource request, and resource allocation; each of them is described in detail below.
  • BWP Bandwidth Limited
  • the base station configures and informs the UE which BWP to activate for receiving and transmitting.
  • the receiving and transmitting bandwidth of the UE need not be as large as the cell bandwidth.
  • the role of BWP is to flexibly adjust bandwidth resources, support flexible scheduling, and play a role in saving power.
  • V2X based on NR and Sidelink can also consider the introduction of BWP, thereby reducing the requirements for UE processing capabilities and achieving the purpose of power saving.
  • FIG. 3 is a schematic diagram of a Sidelink BWP according to an embodiment of the present invention.
  • the UE receives Sidelink BWP configuration information.
  • the Sidelink BWP configuration may be BWP configuration information sent by a base station or BWP information pre-configured by the system.
  • Sidelink BWP configuration information includes BWP index, BWP bandwidth, BWP position, subcarrier interval, cyclic prefix CP, etc.
  • Different BWPs can correspond to different bandwidths and subcarrier intervals, and can correspond to different types of services.
  • the UE receives the Sidelink BWP mapping information from the base station, and the UE selects the Sidelink BWP sent / received by the Sidelink.
  • Sidelink BWP mapping information can be the mapping relationship between PPPP / 5QI / QFI / PDB / priority and subcarrier spacing.
  • the UE determines the PPPP / 5QI / QFI / PDB / priority information corresponding to the Sidelink packet / logical channel and Sidelink BWP mapping information.
  • FIG. 4 is a flowchart of selecting a BWP by a Sidelink corresponding to a data packet or a logical channel according to an embodiment of the present invention.
  • the Sidelink BWP configuration information sent by the base station in addition to the BWP index, BWP bandwidth, BWP position, subcarrier interval, CP, and other information, can also include one or more PPPP / 5QI / QFI / PDB / priority information.
  • the UE determines which Sidelink and BWP can be used for corresponding Transmission of data packets / logical channels.
  • the UE may send sidelink V2X service type information and / or subcarrier interval information to be sent to the base station, and the base station sends the corresponding sidelink BWP configuration information and / or sidelink BWP mapping information to the UE.
  • the V2X service type information includes PPPP / 5QI / QFI / PDB / priority information corresponding to the V2X service sent by the UE. Specifically, corresponding to each destination ID sent by the UE to the base station, the UE may send one or more PPPP / 5QI / QFI / PDB / priority information to the base station, which respectively correspond to different V2X sidelink services.
  • FIG. 5 is a flowchart of a UE requesting a Sidelink to send BWP configuration according to an embodiment of the present invention.
  • the base station configures a corresponding Sidelink for the UE to send BWP and / or Sidelink BWP mapping information.
  • the UE may also directly report the subcarrier interval information list corresponding to the sidelink transmission service to the base station.
  • the base station configures the corresponding sidelink for the UE to send BWP.
  • the UE After receiving the above configuration information, the UE determines which Sidelink BWP is used for sidelink data transmission according to the PPPP / PDB / 5QI / QFI / priority or subcarrier interval corresponding to the Sidelink data / logical channel.
  • the base station uses proprietary signaling
  • the Sidelink BWP configuration information sent to the UE includes the BWP index information sent by the Sidelink.
  • the selection of receiving Sidelink BWP can adopt the following optional methods:
  • the UE high level informs the PPPP / 5QI / QFI / PDB / priority corresponding to the Sidelink service that needs to be received, and the UE determines which Sidelink and BWP data are received according to the Sidelink BWP configuration information and / or Sidelink BWP mapping information mentioned above.
  • the upper layer of the UE informs the list of available subcarrier intervals corresponding to the Sidelink service that needs to be received, and the UE determines which sidelink BWP is used for data reception according to the subcarrier interval information contained in the Sidelink BWP configuration information.
  • FIG. 6 is a BWP selection flowchart for receiving a Sidelink corresponding to a data packet or a logical channel according to an embodiment of the present invention.
  • the UE may send sidelink V2X service type information and / or subcarrier interval information to the base station.
  • the base station sends the corresponding sidelink BWP configuration information and / or sidelink BWP mapping information to the UE.
  • the V2X service type information includes PPPP / 5QI / QFI / PDB / priority information corresponding to the V2X service received by the UE.
  • the base station configures the corresponding Sidelink for the UE to receive BWP and / or Sidelink BWP mapping information.
  • the UE may also directly report the subcarrier interval information list corresponding to the sidelink reception service to the base station.
  • the base station configures the corresponding sidelink reception BWP for the UE.
  • the UE sends sidelink data in the corresponding Sidelink BWP.
  • the Sidelink BWP configuration information sent by the base station to the UE through the dedicated signaling includes the BWP index information received by the Sidelink.
  • FIG. 7 is a flowchart of a UE requesting a sidelink to receive a BWP configuration according to an embodiment of the present invention.
  • a UE requesting a sidelink to receive a BWP configuration according to an embodiment of the present invention.
  • the corresponding PPPP / PDB / priority can also be considered to give the threshold of PPPP / PDB / priority.
  • the priority of the data packet or logical channel is higher than the priority corresponding to the threshold, or the PDB corresponding to the data packet or logical channel is less than The PDB corresponding to the threshold can use the Sidelink BWP.
  • the UE can determine which Sidelink BWP can be used for corresponding data packets / logical channels based on the subcarrier interval information included in the Sidelink BWP configuration. Transmission.
  • the UE may also obtain Sidelink BWP configuration information and / or Sidelink BWP mapping information through pre-configuration, and perform Sidelink sending and / or receiving Sidelink BWP selection.
  • Synchronous sidelink BWP can be used to send and receive Sidelink synchronization signals.
  • broadcast-based Sidelink transmission such as sidelink discovery, Sidelink multicast, or Sidelink broadcast, you can configure broadcast Sidelink BWP.
  • Synchronous Sidelink BWP and broadcast Sidelink BWP may be the same.
  • FIG. 8 is a schematic diagram of an initial BWP and an ordinary BWP according to an embodiment of the present invention.
  • two types of BWP are configured, one is an initial BWP, and the other is an ordinary BWP.
  • UEs interested in sidelink unicast communication can send and receive PC5 connection establishment information on the initial sidelink and BWP to establish a PC5 connection.
  • the UE node pair can negotiate the subsequent sidelink unicast communication data to send / receive the corresponding sidelink BWP and / or the corresponding sidelink resource pool. Assuming BWP3 is used for negotiation, the UE node pair only needs to send and receive data packets on BWP3.
  • the UE node pairs can further use initial BWP or BWP3 to negotiate, and determine whether a new sidelink or BWP is required to be configured according to the quality of service QoS requirements of the new V2X service. Send and receive unicast data.
  • FIG. 9 is a flowchart of a Sidelink BWP and / or a resource pool in which a unicast communication UE negotiates Sidelink data transmission according to an embodiment of the present invention.
  • UE1 and UE2 receive or preconfigure a unicast communication initial sidelink BWP from a base station. Configuration information. Assuming that UE1 discovers UE2 and initiates a PC5 connection establishment with UE2, UE1 can send PC5 connection establishment request information on the initial sidelink BWP. UE2 interested in sidelink unicast communication listens to the initial sidelink BWP, receives the PC5 connection establishment request sent by UE1, and then UE2 sends a PC5 connection establishment response message.
  • UE1 may send Sidelink configuration information to UE2, which contains at least one of the following information: V2X service information of data to be sent, and available Sidelink BWP / resource pool configuration information.
  • the service information of the data to be sent includes at least one of the following: QoS parameters (such as PPPP / 5QI / QFI / PDB / priority, GFBR), SDAP configuration information (QFI to the data bearer between the terminal and the base station (Data Resource Bearer, DRB ) Mapping, whether there is a Service Data Adaptation Protocol (SDAP) subheader), Radio Link Control (RLC) configuration information (acknowledged mode / non-acknowledged mode (AM / UM), bidirec or unidirec, whether out-of-order delivery, t-assembly timer, RLC SN length, retransmit, poll, etc.), packet data convergence protocol (Packet Data Convergence Protocol, PDCP) configuration information (PDCP serial number (SN) length
  • UE2 After receiving the Sidelink configuration on the PC5 interface, UE2 sends receivable V2X service information and / or supported transmission and / or reception of Sidelink BWP / resource pool configuration to UE1. Specifically, UE2 determines the Sidelink / BWP / resource pool configuration sent by UE1 according to its own capabilities and the Sidelink / BWP / resource pool configuration of the serving cell configuration. In addition, UE2 may also establish a corresponding Sidelink bearer and / or logical channel according to the V2X service information sent by UE1.
  • UE2 can also feed back to UE1 the list of Sidelink bearers / logical channels / QoS flows that were successfully established and / or failed to be established. After receiving the sidelink configuration feedback information of UE2, UE1 can start to initiate V2X Sidelink data transmission.
  • the Sidelink configuration information can be connected to PC5 to establish and reuse the same signaling process, or it can be a different signaling process.
  • V2X service information specifically, it can include QoS flow parameter information, such as PDB / PER / priority / PBR, etc.
  • the serving base station After receiving the information, the serving base station sends Supported QoS flow information and / or sidelink bearer / logical channel configuration information.
  • UE2 can also send V2X service information to the serving base station (specifically, it can include QoS flow parameter information, such as PDB / PER / priority / PBR, etc.), and the serving base station receives After the information is sent, supportable QoS flow information and / or sidelink bearer / logical channel configuration information are sent, and UE2 feeds back to UE1 the sidelink bearer / logical channel / QoS flow list that was successfully established and / or failed to be established according to the information.
  • QoS flow parameter information such as PDB / PER / priority / PBR, etc.
  • the UE activates only one Sidelink and BWP for Sidelink transmission.
  • the UE may be interested in receiving different types of V2X services, so the UE can monitor / receive multiple Sidelink BWPs at the same time.
  • Which SLWs are specifically monitored depends on the services the UE is interested in. For example, the UE determines which SLs and BWPs need to be monitored according to the available SCS list corresponding to each service.
  • the UE interested in unicast communication may only monitor the unicast initial SLBWP, and subsequently determine the unicast SLWP that needs to be monitored according to the sidelink configuration or according to the PC5 signaling instruction.
  • the UE receives the UE instructed by the base station through RRC signaling to activate the SLBWP and / or the SLBWP index.
  • the UE At the Uu port, the UE receives the SL activation BWP and / or SL activation BWP index sent by the UE through the DCI indication.
  • the sending UE selects the SLBWP that can be used according to the PPPP / PDB / priority / 5QI and QFI / subcarrier interval information of the logical channel corresponding to the data to be sent. Switch and / or activate SLWP if necessary.
  • the UE node On the PC5 interface, the UE node sends / receives the activated SL to send and / or receive BWP information through PC5 signaling.
  • the UE can carry the activated SLWP index in the SCI. Instruct the peer UE to switch to the new receiving SLWP.
  • the UE receives the inactivity timer configuration from the base station. If a unicast UE does not receive data sent to itself within a certain unicast SLBWP for a period of time and the inactivity timer times out, the UE can fall back to the unicast initial BWP;
  • the UE When switching between SL and BWP, for example, when the UE switches from SL to BWP1 to SL and BWP2, the UE uses an autonomous resource selection method. At this time, the sensing result on the resource pool corresponding to SL and BWP2 is not yet available, then the UE can first use the autonomous random selection on SL and BWP2. Resource pool.
  • Sidelink discovery / Sidelink broadcast / Sidelink multicast / Sidelink initial unicast BWP can reuse the same UuBWP as paging and SI, so that the UE can perform system information / paging information on a unified BWP , And the reception of Sidelink messages.
  • Sidelink BWP and UWP BWP are configured independently.
  • the sidelink resource pool configuration information includes the sidelink sending resource pool configuration information, and the sidelink receiving resource pool information.
  • the specific sidelink resource pool configuration indicates the time-frequency domain location of the sidelink resource.
  • the sidelink resource pool information further provides resource time-frequency domain position information of SCI and data, and / or subcarrier interval information.
  • the time domain information may include slslot bitmap
  • the frequency domain information may be indicated by SL and BWP, or by independent starting RB positions, and the number of subchannels / resource blocks (Resource Blocks, RBs).
  • SL BWP frequency domain different time domain bitmaps can be configured on it, corresponding to different Sidelink resource pools.
  • the frequency domain can be further subdivided, corresponding to different sidelink resource pools.
  • BWP-based V2X Sidelink resource pools are also associated with different numerology and can be used to support different types of V2X services.
  • the Sidelink resource pool configuration can include the following information:
  • the Sidelink resource pool configuration information received by the UE from the base station includes the sending and / or receiving resource pool configuration of the cell.
  • the UE may also receive the sending and / or receiving resource pool configuration of the neighboring cell and the cross-carrier sending and / or receiving resource pool configuration from the base station.
  • the UE can pre-configure the sending and receiving resource pools on each carrier. When the UE is in an uncovered state, it can use the pre-configured resource pool for Sidelink transmission and reception.
  • the UE receives a Sidelink transmission and / or reception resource pool configuration corresponding to LTE and / or NR from a base station.
  • the corresponding resource pool information can carry version or RAT information.
  • Sidelink discovery and Sidelink communication correspond to different Sidelink sending and / or receiving resource pools.
  • the UE receiving the Sidelink discovery and / or Sidelink communication from the base station corresponds to the Sidelink sending and / or receiving resource pool configuration.
  • Sidelink multicast and / or broadcast and Sidelink unicast can correspond to different sending and / or receiving resource pools.
  • the resource pool configuration includes resources corresponding to HARQ ACK / NACK transmission.
  • the resource pool configuration includes the initial sending and / or receiving resource pool, and other sending and / or receiving resource pools.
  • the initial sending and / or receiving resources may correspond to the sidelink initial BWP.
  • the resource pool configuration can include the period of beam sweeping and resource configuration.
  • the UE receives Sidelink multicast / broadcast and / or Sidelink unicast resource pool configuration information from the base station.
  • the corresponding resource pool configuration information may include a communication mode indication, such as unicast, multicast, or broadcast. It should be noted that the UE may receive Sidelink resource pool configuration information of the neighboring cell from the base station.
  • the Sidelink resource pool configuration information of the neighboring cell may include information of the Sidelink multicast / broadcast resource pool of the neighboring cell, and / or the sending / receiving resource pool information of the neighboring sidelink unicast initial BWP.
  • FIG. 10 is a flowchart of Sidelink resource configuration of a UE receiving a base station according to an embodiment of the present invention.
  • the UE receives V2X resource pool information broadcasted by the base station. If there is no V2X related SI information, if SIB1 indicates a request RACH resource, use MSG1 to request V2X related SI; if there is no SI request RACH resource configured in SIB1, the UE uses MSG3 (RRCSystemInfoRequest) to request a V2X relatedSI; the base station sends it after receiving V2X related SI.
  • the SIB1 sent by the base station may include a V2X support instruction. If the V2X sidelink resource configuration information is not broadcast, the UE enters the RRC connection state to request resources.
  • FIG. 11 is a flowchart of a UE requesting V2X Sidelink configuration information according to an embodiment of the present invention.
  • the UE does not necessarily need to obtain all V2X Sidelink related information. Resource pool information.
  • the UE sends a Sidelink configuration information request to the base station, and the Sidelink configuration information request includes indication information of Sidelink synchronization, and / or sidelink discovery, and / or sidelink broadcast / multicast communication, and / or sidelink unicast communication.
  • the base station sends the corresponding Sidelink configuration information to the UE.
  • the V2X UE in the RRC connection state may also send a V2X sdielink configuration request to the base station.
  • the base station configures, for the UE, the sending and / or receiving resource pool corresponding to the base station scheduling resource allocation (Mode3) and / or the sending and / or receiving resource pool corresponding to the autonomous resource allocation (mode4) for the UE.
  • a V2X sidelink configuration request sent by a V2X UE may include any combination of the following information: an interest indication for sidelink discovery sending and / or receiving, an interest indication for sidelink unicast communication sending and / or receiving, and an Sidelink multicast / Interest indication sent and / or received by broadcast communication, sidelink unicast communication target identifier, sidelink broadcast / multicast communication target identifier.
  • V2X sidelink configuration request can also include service type information, such as 5QI, PDB, PER / PPPR, priority / PPPP, GFBR / PBR, ARP, etc.
  • the V2X sidelink configuration request may further include at least one of the following information: the unicast peer UE identification, the geographic location of the peer UE, and / or beam index / beam direction information.
  • the base station After receiving the V2X Sidelink configuration request sent by the connected V2X UE, the base station sends the V2X Sidelink resource configuration to the UE.
  • the V2X Sidelink resource configuration includes Mode3 and / or mode4 resource pool configuration information.
  • the V2X sidelink resource configuration sent by the base station can include both mode 3 and mode 4 resource pools for the UE.
  • the UE can more flexibly choose which resource to use according to business needs. For example, for services with high reliability requirements, the UE can select mode 3 resources; and for the mode 4 random resource pool, each pool can be associated with one or more latency requirements. / Scope (represented by numerology), it is convenient to choose different resource pools for different traffic requirements.
  • the base station can also configure Sidelink resource pools with different modes on different carriers, such as the mode 3 transmission resource pool on carrier 1, and the mode 4 transmission resource pool on carrier 2.
  • the sidelink configuration information received by the V2X UE that is interested in unicast reception may also include a Sidelink unicast initial receiving resource pool or a sidelink unicast initial BWP receiving resource pool.
  • the V2X Sidelink configuration sent by the base station received by the UE may also include Sidelink bearer and / or logical channel configuration information, which may specifically include any combination of the following information: QoS parameters (such as PPPP / 5QI / QFI / PDB / priority, GFBR), SDAP configuration information (QFI to DRB mapping, whether there is an SDAP subheader), RLC configuration information (AM / UM, bidirec or unidirec, whether out of order delivery, t-assembly timer, RLC SN length, retransmit, poll, etc.), PDCP configuration information (PDCP, SN length, discard timer, t-reordering timer, data split, threshold, integrity protection, maxCID, etc.), logical channel configuration information (logical channel identification, priority, PBR, allowSCS), MAC Layer configuration information, etc.
  • QoS parameters such as PPPP / 5QI / QFI / PDB / priority, GFBR
  • the available Sidelink BWP / resource pool configuration information includes the BWP identification of Sidelink BWP, and / or BWP bandwidth, BWP location, subcarrier interval, CP, and other information.
  • the UE may configure the sidelink bearer and / or the logical channel accordingly.
  • the UE may perform resource pool selection.
  • the specific method is as follows.
  • the UE may be interested in receiving different types of V2X services, so the UE can monitor / receive multiple Sidelink BWP / resource pools at the same time.
  • Which SL BWP / resource pools to monitor specifically is determined according to the services that the UE is interested in. For example, the UE determines which SL / BWP / receiving resource pool needs to be monitored according to the available SCS list / service type information corresponding to each service.
  • UEs interested in unicast communication can only monitor unicast initial SLW or initial unicast receiving resource pool, and then determine other unicast SLs that need to be monitored based on the sidelink configuration sent by the base station or the PC5 signaling sent by the peer UE. BWP or unicast receiving resource pool.
  • the UE For UEs in idle and inactive states or UEs in the connected state and determined to adopt autonomous resource allocation, after receiving from the base station or pre-configuring multiple Sidelink sending resource pools in the system, the UE is available according to the logical channel corresponding to the service data to be sent. Sub-carrier spacing (SCS) list, select the sidelink BWP / sidelink sending resource pool corresponding to SCS. If there are multiple Sidelink BWP / Sidelink sending resource pools available, the UE further selects the first Sidelink sending resource pool, or selects the sidelink sending resource pool with the smallest CBR value, or arbitrarily selects a sidelink sending resource pool.
  • SCS Sub-carrier spacing
  • the sidelink bearer / logical channel buffer status can be reported to the base station, and the base station allocates sidelink resources to the UE.
  • the sidelink grant sent by the base station to the UE includes the sidelink BWP index and / or the sidelink sending resource pool index.
  • the UE After receiving the sidelink grant, the UE sends the QoS information (such as PPPP / PDB / PPPR / 5QI / SCS) corresponding to the resource pool according to the sidelink BWP index and / or Sidelink, and the QoS parameters (PPPP / PDB / PPPR / 5QI / SCS) decides which logical channel data is scheduled to be sent.
  • the QoS information such as PPPP / PDB / PPPR / 5QI / SCS
  • the unicast communication initiates the UE to send the V2X sidelink BWP / sidelink information to the peer UE to send the resource pool information.
  • the peer UE monitors the sidelink receiving resource pool corresponding to the resource pool information sent by V2X sidelink and BWP / sidelink.
  • the sidelink resource request and allocation can be divided into the following steps.
  • the UE sends an SR.
  • the UE sends an SR request for sidelink communication resources.
  • the following SR resource configuration and SR transmission method can be used: a) The base station configures the mapping relationship between Sidelink BWP / resource and SR configuration; when the UE uses the corresponding When the SR resource sends the SR, the base station knows to request the sidelink communication resource; b) configure an SR configuration dedicated to requesting the sidelink communication resource for the UE; c) use an uplink reserved LCID value, which is specifically used to indicate the request sidelink communication resources; d) configure the mapping relationship between V2X frequency points reported in sidelinkUEInformation and SR configuration.
  • the Sidelink BSR sent by the UE includes a logical channel group identifier, a buffer size, and a sidelink communication target identifier / index.
  • the Sidelink BSR sent by the UE can also carry the SCS index / SL / BWP ID.
  • the SCS index / SL / BWP ID can inform the base station UE of the subcarrier interval type or SL BWP frequency domain information required for data transmission.
  • the base station sends a sidelink grant.
  • the base station configures multiple mode 3sidelink sending resource pools and / or sidelink BWPs for the UE, the base station sends the sidelink grant DCI to include the pool id and / or bwp id to indicate the sidelink sending resource pool and / Or sidelink BWP.
  • the UE schedules and assembles MAC PDUs and sends, and after receiving the sidelink grant, the UE determines the sidelink sending resource pool and / or sidelink BWP corresponding to the resource, and determines the subcarrier interval corresponding to the resource pool or sidelink BWP or the corresponding QoS parameter (PPPP / PDB / PER / 5QI), and then the UE schedules the data of the logical channel corresponding to the subcarrier interval or QoS parameter and assembles it into a MAC PDU and sends it through the physical layer.
  • the UE determines the sidelink sending resource pool and / or sidelink BWP corresponding to the resource, and determines the subcarrier interval corresponding to the resource pool or sidelink BWP or the corresponding QoS parameter (PPPP / PDB / PER / 5QI), and then the UE schedules the data of the logical channel corresponding to the subcarrier interval or QoS parameter and assembles it into a
  • the base station can preempt sidelink resources that have been allocated to UE1, and then allocate them to UE2 for the transmission of delay critical V2X data.
  • the Sidelink configuration information received by the UE from the base station may include SL-INT-RNTI.
  • the UE monitors the SL-INT-RNTI on the PDCCH. If the UE receives an interrupt indication sent by the Sidelink, the UE considers that the resource location indicated by the SL-INT-RNTI has no available information.
  • the UE may need to send multiple V2X messages at the same time, and the various messages have different periods, different arrival times, and different sizes.
  • R14V2X supports multiple SPS processes.
  • the UE needs to report auxiliary information (packet arrival period, packet arrival offset, PPPP, maximum MAC, PDU size) to help the base station configure and activate the appropriate SPS process.
  • the base station uses the DCI format 5A scrambled by SL-V-SPS-RNTI to activate or release the SPS process indicated by SL SPS configuration index field.
  • the V2X service has low-latency and high-reliability requirements. You can consider using RRC signaling to configure (Type1) sidelink communication SPS sending resources, thereby reducing latency. Because there are multiple message types for V2X messages, with different message periods, arrival times, and packet sizes, it is necessary for NR sidelink to support multiple type 1 configuration / SPS processes. In addition, you can also consider multiplexing DCI for SPS activation and deactivation mechanisms (type 2).
  • the UE sends Sidelink V2X SPS auxiliary information to the base station, and the UE receives the Sidelink V2X SPS configuration sent by the base station.
  • Further Sidelink V2X SPS auxiliary information can include any combination of the following information: SPS type indication (type1or type2), QoS indication (5QI / PDB / delay critical / PER), available subcarrier interval, etc.
  • the base station configures SPS resources of type 1 or type 2 for the UE according to the above-mentioned auxiliary information.
  • the specific Sidelink V2X SPS configuration includes SPS period, offset, SL sending resource pool (index) and / or SL BWP (index) corresponding to SPS resources, frequency domain resource location and size, and so on.
  • the SLS SPS needs to be considered for deactivation / release.
  • the following methods can be considered: 1) The UE estimates how long this type of data will last. How many periodic type 1 resources are needed, and the duration is reported in the UE auxiliary information, and the gNB configures the type 1 resource release or the validity period according to this information; 2) When the UE no longer needs a certain type 1 resource configuration (such as consecutive N If no data is sent), the type 1 resource configuration is released, and gNB is notified (the type 1 configuration index is released).
  • Access identity is configured on the SIM card when the UE signs a contract
  • Access identity 11-15 is a special Access class
  • Access identity 3-10 is a reserved value.
  • Access category is defined by comprehensive UE conditions and Access Attempt, among which Access category 8-31 is a reserved standard access type, and Access category 32-63 is left to the operator to define independently.
  • V2X services have the requirements of high reliability and low latency.
  • For access initiated by V2X sidelink / Uu communication you can control its access by defining Access identity or Access category (defined by SA1) and configuring barring parameters.
  • the UE NAS determines the access category and access identity for the access attempt. If the access attempt is not barring, the UE performs a mapping of access attempts (associated access categories and access identity (ies)) to establishment and provides it to the RRC for inclusion in the connection request, so that the gNB decides whether to accept The request.
  • access attempts associated access categories and access identity (ies)
  • a resource allocation device for a direct link in a vehicle-to-vehicle network is also provided.
  • the device is used to implement the foregoing embodiments and example implementations, and the descriptions will not be repeated.
  • the term "module” may implement a combination of software and / or hardware for a predetermined function.
  • the devices described in the following embodiments may be implemented in software, hardware, or a combination of software and hardware, is also possible and conceived.
  • FIG. 12 is a schematic structural diagram of a resource allocation device for a through link in a vehicle networking according to an embodiment of the present invention.
  • the device is applied to a terminal.
  • the device includes a first receiving module 1202 for receiving the through link Sidelink. BWP / resource pool configuration information; a transmission module 1204 is coupled to the first receiving module 1202 and is configured to perform sidelink data transmission according to the received Sidelink BWP / resource pool configuration information.
  • the Sidelink BWP configuration information includes at least one of the following: BWP index, BWP bandwidth, BWP position, subcarrier interval, cyclic prefix, and one or more target identifiers / PPPP / 5QI / QFI / PDB / priority information.
  • SidelinkBWP configuration information also includes Sidelink BWP mapping information, which indicates the mapping relationship between the target identifier / PPPP / 5QI / QFI / PDB / priority information and the subcarrier interval.
  • the transmission module 1204 is further configured to determine a Sidelink BWP and / or a Sidelink resource pool for data transmission / reception according to the received Sidelink BWP configuration information.
  • the apparatus further includes: a first sending module, configured to send the request information to the base station before the first receiving module receives the direct link Sidelink BWP configuration information.
  • the request information includes at least one of the following: a V2X relatedSI request; a sidelink synchronization, and / or a sidelink discovery, and / or a sidelink broadcast / multicast communication, and / or a sidelink unicast communication resource configuration request; an LTE sidelink resource configuration request; An indication of interest in Sidelink discovery sending and / or receiving; an indication of interest in sending and / or receiving Sidelink unicast communications; an indication of interest in sending and / or receiving Sidelink multicast / broadcast communications; Sidelink unicast communication target identification or Sidelink Broadcast / multicast communication target identification; PPPP / 5QI / QFI / PDB / priority / PER / GFBR / PBR / ARP; subcarrier interval information;
  • each sidelink unicast communication target identifier at least one of the following information is included: the unicast peer UE identifier, the geographic location of the peer UE, and / or the beam index / beam index / beam direction information.
  • the Sidelink BWP / resource pool information involved in this embodiment includes at least one of the following: synchronous Sidelink BWP, broadcast Sidelink BWP / resource pool, multicast Sidelink BWP / resource pool, unicast Sidelink BWP / resource pool .
  • the Sidelink BWP / resource pool also includes: the initial Sidelink BWP / resource pool; wherein the initial Sidelink BWP / resource pool is used for the establishment of the Sidelink unicast connection and / or the unicast data transmission resource configuration signaling to send or receive the corresponding sidelink BWP / resource pool.
  • the method for configuring unicast data transmission resources includes: the first terminal sends to the second terminal a sidelink BWP and / or a sidelink resource pool carrying V2X service information and available; the first terminal receives an acceptable V2X service information and / or Sidelink BWP / resource pool configuration that supports sending and / or receiving.
  • the device in this embodiment may further include: a selection module, configured to: according to the target identifier corresponding to the data packet / logical channel / PPPP / 5QI / QFI / PDB / priority information or available Subcarrier interval information and Sidelink BWP configuration information select the Sidelink BWP / resource pool corresponding to the target identifier / PPPP / 5QI / QFI / PDB / priority / available subcarrier interval for data transmission; or, a processing module is used to The target identifier / PPPP / 5QI / QFI / PDB / priority information or subcarrier interval information corresponding to the received service determines the Sidelink BWP / resource pool that is monitored or received; or, the first activation module is used to receive the base station's indication through RRC signaling BWP / resource pool index; or, a second activation module for receiving the activation BWP / resource pool index indicated by the base station
  • Sidelink BWP multiplexes the same Uu BWP with paging and SI; and / or, for scenarios where Sidelink uses Uu port UL resources, configure the same Sidelink BWP and UL BWP, or Sidelink BWP and UL BWP Overlapping in the frequency domain; and / or, for the scenario where Sidelink uses dedicated PC5carrier, Sidelink BWP and Uu port BWP are configured independently.
  • the configuration information of the Sidelink resource pool includes at least one of the following: time-frequency domain position of the Sidelink resource, time-frequency domain position information of the SCI resource, time-frequency domain position information of the data resource, subcarrier interval information, and unicast / multicast / broadcast indication. .
  • the Sidelink resource pool configuration information includes at least one of the following: sending and / or receiving resource pool configuration information of the terminal camping or serving cell, neighboring cell / adjacent frequency point sending and / or receiving resource pool configuration information, LTE and Sidelink sending and / or receiving resource pool configuration information corresponding to NR, Sidelink discovery sending and / or receiving resource pool configuration information, Sidelink communication sending and / or receiving resource pool configuration information, Sidelink multicast / broadcast / unicast sending and / Or receive Sidelink resource pool configuration information.
  • the apparatus in this embodiment may further include: a fifth receiving module, configured to receive a Sidelink bearer and / or logical channel configuration information sent by the base station.
  • a fifth receiving module configured to receive a Sidelink bearer and / or logical channel configuration information sent by the base station.
  • the apparatus in this embodiment may further include: a second sending module, configured to send an SR requesting a Sidelink resource.
  • the apparatus in this embodiment may further include: a sixth receiving module, configured to receive the SR configuration information in at least one of the following ways before the second sending module sends the SR requesting the Sidelink resource:
  • the apparatus in this embodiment may further include: a third sending module, configured to send a Sidelink BSR to the base station, where the Sidelink BSR includes: a subcarrier interval index or a SLBWP ID.
  • a third sending module configured to send a Sidelink BSR to the base station, where the Sidelink BSR includes: a subcarrier interval index or a SLBWP ID.
  • the apparatus in this embodiment may further include a sixth receiving module configured to receive a Sidelink grant DCI sent by the base station, where the Sidelink grant DCI includes a sidelink sending resource pool identifier / index and / or a sidelink BWP identifier corresponding to the resource. /index.
  • a sixth receiving module configured to receive a Sidelink grant DCI sent by the base station, where the Sidelink grant DCI includes a sidelink sending resource pool identifier / index and / or a sidelink BWP identifier corresponding to the resource. /index.
  • the apparatus in this embodiment may further include: a determining module configured to determine a sidelink sending resource pool and / or a sidelink BWP corresponding to the sidelink grant after the sixth receiving module receives the sidelink grant DCI sent by the base station; a scheduling module, It is used to dispatch the corresponding subcarrier interval / target identifier / PPPP / 5QI / QFI / PDB according to the determined sidelink to send the resource pool and / or the subcarrier interval / target identifier / PPPP / 5QI / QFI / PDB / priority information corresponding to the sidelink.
  • the data of the / priority logical channel is assembled into a MAC PDU and sent by Sidelink.
  • the apparatus in this embodiment may further include a fourth sending module configured to send Sidelink V2X SPS auxiliary information to the base station, and a seventh receiving module configured to receive the Sidelink V2X SPS configuration sent by the base station.
  • a fourth sending module configured to send Sidelink V2X SPS auxiliary information to the base station
  • a seventh receiving module configured to receive the Sidelink V2X SPS configuration sent by the base station.
  • the Sidelink V2X SPS auxiliary information includes at least one of the following: SPS type indication, duration, 5QI / QFI / PDB / delay / critical / Priority, and available subcarrier interval.
  • the Sidelink V2X SPS configuration includes at least one of the following: SPS period, offset, Sidelink BWP / resource pool identifier / index corresponding to SPS resources, frequency domain resource location and size, and validity period.
  • the above modules can be implemented by software or hardware. For the latter, they can be implemented in the following ways, but are not limited to the above: the above modules are located in the same processor; or the above modules are arbitrarily combined The forms are located in different processors.
  • An embodiment of the present invention further provides a storage medium.
  • the storage medium stores a computer program, and the computer program is configured to execute the steps in any one of the foregoing method embodiments when running.
  • the foregoing storage medium may be configured to store a computer program for performing the following steps: Step S1, the terminal receives a direct link Sidelink BWP / resource pool configuration information; and step S2, the terminal according to the received Sidelink BWP / resource pool configuration information for Sidelink data transmission.
  • the foregoing storage medium may include, but is not limited to, a U disk, a read-only memory (ROM), a random access memory (Random Access Memory, RAM), A variety of media that can store computer programs, such as mobile hard disks, magnetic disks, or optical disks.
  • ROM read-only memory
  • RAM Random Access Memory
  • An embodiment of the present invention further provides an electronic device including a memory and a processor.
  • the memory stores a computer program
  • the processor is configured to run the computer program to perform the steps in any one of the foregoing method embodiments.
  • the electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the processor, and the input-output device is connected to the processor.
  • the foregoing processor may be configured to execute the following steps through a computer program: Step S1, the terminal receives a direct link Sidelink BWP / resource pool configuration information; Step S2, the terminal is / Resource pool configuration information for Sidelink data transmission;
  • modules or steps of the present application may be implemented by a general-purpose computing device, and they may be concentrated on a single computing device or distributed in a network composed of multiple computing devices.
  • they may be implemented with program code executable by a computing device, so that they may be stored in a storage device and executed by the computing device, and in some cases, may be in a different order than here
  • the steps shown or described are performed either by making them into individual integrated circuit modules or by making multiple modules or steps into a single integrated circuit module. As such, this application is not limited to any particular combination of hardware and software.

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Abstract

本申请提供了一种车联网中直通链路的资源配置方法及装置,其中,该方法包括:终端接收直通链路BWP/资源池配置信息;所述终端根据接收到的所述直通链路BWP/资源池配置信息进行直通链路数据传输。

Description

车联网中直通链路的资源配置方法及装置
本申请要求在2018年08月10日提交中国专利局、申请号为201810912172.4的中国专利申请的优先权,该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域,例如涉及一种车联网中直通链路的资源配置方法及装置。
背景技术
车联网是指按照约定的通信协议和数据交互标准,在车与车、行人、路边设备及互联网之间,进行无线通讯和信息交换的大系统网络。通过车联网通信可以使车辆获得行驶安全、提高交通效率以及获得便利或娱乐信息。从无线通信的对象来分类,车联网通信包括三种不同类型:车辆与车辆之间通信(Vehicle-to-Vehicle,简称为V2V),车辆与路边设备/网络基础设施之间通信(Vehicle-to-Infrastructure/Vehicle-to-Network,简称V2I/V2N),以及车辆与行人之间通信(Vehicle-to-Pedestrian,简称V2P),统称为V2X通信。
在3GPP(3rd Generation Partnership Project)组织的基于长期演进(Long Term Evolution,简称为LTE)的V2X通信研究中,基于用户设备(User Equipment,简称为UE)之间的直通/旁链链路(Sidelink)的V2X通信方法是V2X标准实现的方式之一,即业务数据不经过基站和核心网的转发,直接由源用户设备通过空口传输给目标用户设备,这种V2X通信方式简称PC5-based V2X通信或V2X Sidelink通信。
随着技术进步与自动化产业发展,V2X通信场景进一步延伸且有更高的性能需求。高级V2X业务主要分为4大类:车辆组队(vehicle platooning),扩展传感器(extended sensors),高级驾驶(半自动驾驶、全自动驾驶(semi-automated or full-automated driving))以及远程驾驶(remote driving)。要求达到的性能需求:数据包大小支持50到12000字节,传输速率每秒2到50条消息,最大端到端延时3-500毫秒,可靠性90%-99.999%,数据率0.5-1000Mbps,以及传输范围支持50-1000米。3GPP已经立项基于第五代移动通信技术(5th Generation,简称为5G)的车联网通信研究,但相关技术中还未存在基于5G空口的车联网通信及基于5G直通链路(sidelink)的车联网通信。
针对相关技术中的上述问题,目前尚未存在有效的解决方案。
发明内容
本发明实施例提供了一种车联网中直通链路的资源配置方法及装置,以至少解决相关技术中还未存在基于5G直通链路Sidelink的车联网通信的问题。
根据本发明的一个实施例,提供了一种车联网中直通链路的资源配置方法,包括:终端接收直通链路带宽部分(Sidelink Bandwith Part,Sidelink BWP)/资 源池配置信息;所述终端根据接收到的所述Sidelink BWP/资源池配置信息进行Sidelink数据传输。
根据本发明的另一个实施例,提供了一种车联网中直通链路的资源配置装置,包括:第一接收模块,设置为接收直通链路Sidelink BWP/资源池配置信息;传输模块,根据接收到的所述Sidelink BWP/资源池配置信息进行Sidelink数据传输。
根据本发明的又一个实施例,还提供了一种存储介质,所述存储介质中存储有计算机程序,其中,所述计算机程序被设置为运行时执行上述车联网中直通链路的资源配置方法实施例中的步骤。
根据本发明的又一个实施例,还提供了一种电子装置,包括存储器和处理器,所述存储器中存储有计算机程序,所述处理器被设置为运行所述计算机程序以执行上述车联网中直通链路的资源配置方法实施例中的步骤。
通过本申请,终端能够接收Sidelink BWP/资源池配置信息,并根据Sidelink BWP/资源池配置信息进行Sidelink数据传输,从而能够实现基于5G的直通链路的车联网通信,解决了相关技术中还未存在基于5G直通链路Sidelink的车联网通信的问题,填补了相关技术中的空白。
附图说明
此处所说明的附图用来提供对本申请的进一步理解,构成本申请的一部分,本申请的示意性实施例及其说明用于解释本申请,并不构成对本申请的不当限定。在附图中:
图1是本发明实施例的车联网中直通链路的资源配置方法的终端的硬件结构框图;
图2是根据本发明实施例的车联网中直通链路的资源配置方法的流程图;
图3是根据本发明实施例的Sidelink BWP示意图;
图4根据本发明实施例的数据包或逻辑信道对应的Sidelink发送BWP选择流程图;
图5是根据本发明实施例的UE请求Sidelink发送BWP配置的流程图;
图6是根据本发明实施例的数据包或逻辑信道对应的Sidelink接收BWP选择流程图;
图7是根据本发明实施例的UE请求sidelink接收BWP配置的流程图;
图8是根据本发明实施例的initial BWP及普通BWP的示意图;
图9是根据本发明实施例的单播通信UE协商Sidelink数据传输的Sidelink BWP和/或资源池的流程图;
图10是根据本发明实施例的UE接收基站的Sidelink资源配置的流程图;
图11是根据本发明实施例的UE请求V2X Sidelink配置信息的流程图;
图12是根据本发明实施例的车联网中直通链路的资源配置装置的结构示意图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本申请。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。
需要说明的是,本申请的说明书和权利要求书及上述附图中的术语“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。
实施例1
本申请实施例一所提供的方法实施例可以在终端、计算机终端或者类似的运算装置中执行。以运行在终端上为例,图1是本发明实施例的车联网中直通链路的资源配置方法的终端的硬件结构框图。如图1所示,终端10可以包括一个或多个(图1中仅示出一个)处理器102(处理器102可以包括但不限于微处理器MCU或可编程逻辑器件FPGA等的处理装置)和用于存储数据的存储器104,可选地,上述终端还可以包括用于通信功能的传输设备106以及输入输出设备108。本领域普通技术人员可以理解,图1所示的结构仅为示意,其并不对上述终端的结构造成限定。例如,终端10还可包括比图1中所示更多或者更少的组件,或者具有与图1所示不同的配置。
存储器104可用于存储计算机程序,例如,应用软件的软件程序以及模块,如本发明实施例中的车联网中直通链路的资源配置方法对应的计算机程序,处理器102通过运行存储在存储器104内的计算机程序,从而执行各种功能应用以及数据处理,即实现上述的方法。存储器104可包括高速随机存储器,还可包括非易失性存储器,如一个或者多个磁性存储装置、闪存、或者其他非易失性固态存储器。在一些实例中,存储器104可进一步包括相对于处理器102远程设置的存储器,这些远程存储器可以通过网络连接至终端10。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
传输装置106用于经由一个网络接收或者发送数据。上述的网络具体实例可包括终端10的通信供应商提供的无线网络。在一个实例中,传输装置106包括一个网络适配器(Network Interface Controller,简称为NIC),其可通过基站与其他网络设备相连从而可与互联网进行通讯。在一个实例中,传输装置106可以为射频(Radio Frequency,简称为RF)模块,其用于通过无线方式与互联网进行通讯。
在本实施例中提供了一种运行于上述终端的车联网中直通链路的资源配置方法,图2是根据本发明实施例的车联网中直通链路的资源配置方法的流程图,如图2所示,该流程包括如下步骤。
步骤S202,终端接收直通链路Sidelink BWP/资源池配置信息。
步骤S204,终端根据接收到的Sidelink BWP/资源池配置信息进行Sidelink数据传输。
通过上述步骤S102和步骤S204,终端能够接收Sidelink BWP/资源池配置信息,并根据Sidelink BWP/资源池配置信息进行Sidelink数据传输,从而能够实现基于5G的直通链路的车联网通信,解决了相关技术中还未存在基于5G直 通链路Sidelink的车联网通信的问题,填补了相关技术中的空白。
需要说明的是,本实施例中涉及到的Sidelink BWP配置信息至少包括以下至少之一:BWP索引、BWP带宽、BWP位置、子载波间隔、循环前缀,一个或多个目标标识/近距离服务每个数据包优先级(Proximity based Service Per Packet Priority,ProSe Per Packet Priority,PPPP)/5G服务质量指示(5G Quality of Service indication,5G QoS indication,5QI)/服务质量流标识符(Quality of Service Flow Indentity,QFI)/数据包时延预算(Packet delay budget,PDB)/priority信息。
此外,该SidelinkBWP配置信息还包括Sidelink BWP映射信息,指示目标标识/PPPP/5QI/QFI/PDB/priority信息与子载波间隔的映射关系。
在本实施例的可选实施方式中,对于上述步骤S204中终端根据接收到的Sidelink BWP/资源池配置信息进行Sidelink数据传输的方式可以是:终端根据接收到的Sidelink BWP配置信息确定进行数据发送/接收的Sidelink BWP和/或Sidelink资源池。
在本实施例的再一个可选实施方式中,在终端接收直通链路Sidelink BWP配置信息之前,本实施例的方法还可以包括:终端向基站发送请求信息;
其中,请求信息包括以下至少之一:V2X相关related系统信息(System Information,SI)请求;Sidelink同步、和/或Sidelink发现、和/或Sidelink广播/组播通信、和/或sidelink单播通信资源配置请求;LTE Sidelink资源配置请求;对Sidelink发现发送和/或接收的兴趣指示;对Sidelink单播通信发送和/或接收的兴趣指示;对Sidelink组播/广播通信发送和/或接收的兴趣指示;Sidelink单播通信目标标识或Sidelink广播/组播通信目标标识;PPPP/5QI/QFI/PDB/priority/分组错误率(Packet error rate,PER)/保证流量比特率(Guaranteed flow bit rate,GFBR)/策略路由(Policy-Based Routing,PBR)/地址解析协议(Address Resolution Protocol,ARP);子载波间隔信息。
对于每一个sidelink单播通信目标标识包括以下信息至少之一:单播对端UE标识、对端UE的地理位置和/或波束索引Beam Index/波束指示Beam Direction信息。
另外,Sidelink BWP/资源池信息包括以下至少之一:同步Sidelink BWP、广播Sidelink BWP/资源池、组播Sidelink BWP/资源池、单播Sidelink BWP/资源池。
在本实施例的示例实施方式中,本实施例中的Sidelink BWP/资源池还包括:初始Sidelink BWP/资源池;其中,初始Sidelink BWP/资源池用于Sidelink单播连接建立和/或单播数据传输资源配置信令发送或接收对应的sidelink BWP/资源池。
其中,单播数据传输资源配置包括:第一终端向第二终端发送携带有V2X业务信息、可使用的Sidelink BWP和/或Sidelink资源池;第一终端接收第二终端发送的可接受的V2X业务信息和/或支持发送和/或接收的Sidelink BWP/资源池配置。
在本实施例的再一个可选实施方式中,本实施例的方法还可以包括:步骤S106,终端根据数据包/逻辑信道对应的目标标识/PPPP/5QI/QFI/PDB/priority信息或可用子载波间隔信息,以及Sidelink BWP配置信息选择对应目标标识/PPPP/5QI/QFI/PDB/priority/可用子载波间隔的Sidelink BWP/资源池进行数据传输;或,步骤S108,终端根据自身感兴趣接收的业务对应的目标标识/PPPP/5QI/QFI/PDB/priority信息或子载波间隔信息确定监听或接收的Sidelink BWP/资源池;或,步骤S110,终端接收基站通过RRC信令指示的激活SL BWP/资源池索引;或,步骤S112,终端接收基站通过DCI指示的激活SL BWP/资源池索引;或,步骤S114,终端接收PC5信令包含的SL发送和/或接收BWP/资源池信息/索引;或,步骤S116,终端接收直通链路控制信息(Sidelink Control Information,SCI)包含的激活/切换的SL BWP/资源池索引;或,步骤S118,终端接收基站发送的inactivity timer配置,其中,当inactivity timer超时时,终端回到单播初始Sidelink BWP/资源池。
需要说明的是,对于非成对频谱,Sidelink BWP与paging及系统信息(system information,SI)复用相同的Uu BWP;和/或,对于Sidelink使用Uu口上行链路(Uplink,UL)资源的场景,配置相同的Sidelink BWP与UL BWP,或Sidelink BWP与UL BWP在频域重合;和/或,对于Sidelink使用dedicated PC5carrier的场景,Sidelink BWP与Uu口BWP独立配置。
本实施例中涉及到的Sidelink资源池配置信息包括以下至少之一:Sidelink资源的时频域位置、SCI资源时频域位置信息、数据资源时频域位置信息、子载波间隔信息,单播/组播/广播指示。
其中,Sidelink资源池配置信息包括以下至少之一:终端驻留或服务小区的发送和/或接收资源池配置信息、相邻小区/相邻频点发送和/或接收资源池配置信息、LTE和/或新空口(New Radio,NR)对应的Sidelink发送和/或接收资源池配置信息、Sidelink发现发送和/或接收资源池配置信息、Sidelink通信发送和/或接收资源池配置信息、Sidelink组播/广播/单播发送和/或接收Sidelink资源池配置信息。
在本实施例的又一个可选实施方式中,本实施例中的方法还可以包括:步骤S120,终端接收基站发送的Sidelink承载和/或逻辑信道配置信息。步骤S122,终端发送请求Sidelink资源的调度请求(Scheduling Request,SR)。
其中,在终端发送请求Sidelink资源的SR之前,终端通过以下至少之一的方式接收SR配置信息:终端接收基站配置的Sidelink BWP资源与SR资源的的映射信息;或,终端接收基站发送的专用于请求Sidelink通信/发现资源的SR配置;或,系统预留逻辑信道标识(logical channel identify,LCID)值指示请求Sidelink发现和/或通信资源;或,终端接收基站发送的V2X频点与SR资源之间的映射关系。
在本实施例的再一个可选实施方式中,本实施例的方法还可以包括:步骤S124,终端向基站发送Sidelink缓冲状态报告(Buffer Status Report,BSR),其中,Sidelink BSR包括:载波间隔索引或SL BWP ID。步骤S126,终端接收基 站发送的Sidelink grant DCI,其中,Sidelink grant DCI包括资源对应的sidelink发送资源池标识/索引和/或sidelink BWP标识/索引。步骤S128,在终端接收基站发送的Sidelink grant DCI后,终端确定Sidelink grant对应的sidelink发送资源池和/或sidelink BWP。步骤S130,终端根据确定的sidelink发送资源池和/或sidelink BWP对应的子载波间隔/目标标识/PPPP/5QI/QFI/PDB/priority信息,调度对应子载波间隔/目标标识/PPPP/5QI/QFI/PDB/priority的逻辑信道的数据组装成媒体介入控制层协议数据单元(Media Access control protocol data unit,MAC PDU)并进行Sidelink发送。
在本实施例的示例实施方式中,本实施例的方法还可以包括:步骤S132,终端向基站发送Sidelink V2X半静态调度(Semi-Persistent Scheduling,SPS)辅助信息;步骤S134,终端接收基站发送的Sidelink V2X SPS配置。
其中,Sidelink V2X SPS辅助信息包括以下至少之一:SPS类型指示、持续时间、5QI/QFI/PDB/delay/critical/Priority、可用子载波间隔。
其中,Sidelink V2X SPS配置包括以下至少之一:SPS周期、偏移量、SPS资源对应的Sidelink BWP/资源池标识/索引、、频域资源位置及大小、有效期。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下采用前者的实施方式。基于这样的理解,本申请的技术方案本质上或者说对相关技术做出贡献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(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端设备(可以是手机,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的方法。
下面结合本申请的具体实施方式对本申请进行详细说明;
需要说明的是,NR V2X的研究范围包括Sidelink单播,Sidelink组播以及sidelink广播。一般来说Sidelink V2X通信可以分为单播,组播和广播。需要注意的是,Sidelink单播通信通常要求进行单播通信的两个UE先互相发现对方,然后发起基于单播的sidelink V2X通信。一般来所,Sidelink发现也是基于广播的传输。后续在本实施例中,Sidelink广播泛指Sidelink广播通信,以及Sidelink发现。
本实施例是基于5G NR对基于NR的Sidelink资源池配置,Sidelink BWP,sidelink资源请求及资源分配给出系统解决方案;下面对其一一进行详细描述。
1)Sidelink BWP及配置
NR Uu引入了带宽受限(BandWidth Part,简称为BWP),BWP是小区带宽频域的一部分。由基站配置并告知UE激活哪个BWP进行接收及发送,UE的接收和发送带宽不需要同小区带宽一样大。BWP的作用是可以灵活调整带宽资源,支持灵活调度,并起到节电的目的。考虑到NR的大带宽,基于NR的V2X Sidelink也可以考虑引入BWP的,从而降低对UE处理能力的要求,达到节电的目的。
图3是根据本发明实施例的Sidelink BWP示意图,如图3所示,UE接收Sidelink BWP配置信息,Sidelink BWP配置可以是基站发送的BWP配置信息,或者是系统预配置的BWP信息。Sidelink BWP配置信息包括BWP索引,BWP带宽,BWP位置,子载波间隔,循环前缀CP等。
a)不同类型的业务对应不同的BWP
不同的BWP可以对应不同的带宽及子载波间隔,可对应不同类型的业务。UE从基站接收Sidelink BWP映射信息,UE选择Sidelink发送/接收的Sidelink BWP。
其中,发送Sidelink BWP选择可以采用如下几种可选方式:
Sidelink BWP映射信息可以是PPPP/5QI/QFI/PDB/priority与子载波间隔的映射关系,UE根据Sidelink数据包/逻辑信道对应的PPPP/5QI/QFI/PDB/priority信息以及Sidelink BWP映射信息,确定可以使用的子载波间隔列表,然后根据Sidelink BWP配置中包含的子载波间隔信息,确定使用哪个Sidelink BWP进行对应数据包/逻辑信道的传输。图4根据本发明实施例的数据包或逻辑信道对应的Sidelink发送BWP选择流程图。如图4所示,基站发送的Sidelink BWP配置信息中,除了包括BWP索引,BWP带宽,BWP位置,子载波间隔,CP等信息,还可以包括一个或多个PPPP/5QI/QFI/PDB/priority信息。UE根据Sidelink数据包/逻辑信道对应的PPPP/5QI/QFI/PDB/priority信息以及Sidelink BWP配置信息包含的一个或多个PPPP/5QI/QFI/PDB/priority信息,确定可以使用哪个Sidelink BWP进行对应数据包/逻辑信道的传输。
UE可以向基站发送需要发送的sidelink V2X业务类型信息和/或子载波间隔信息,基站向UE发送对应的sidelink BWP配置信息和/或sidelink BWP映射信息。其中V2X业务类型信息包括UE发送的V2X业务对应的PPPP/5QI/QFI/PDB/priority信息。具体的,对应于UE向基站发送的每一个destination ID,UE可向基站发送一个或多个PPPP/5QI/QFI/PDB/priority信息,分别对应于不同的V2X sidelink业务。图5是根据本发明实施例的UE请求Sidelink发送BWP配置的流程图,如图5所示,基站收到该请求后,为UE配置对应的Sidelink发送BWP和/或Sidelink BWP映射信息。此外UE也可以直接向基站上报sidelink发送业务对应的子载波间隔信息列表,基站收到该请求后,为UE配置对应的sidelink发送BWP。UE收到上述配置信息后,根据Sidelink数据/逻辑信道对应的PPPP/PDB/5QI/QFI/priority或子载波间隔,确定使用哪个Sidelink BWP进行sidelink数据发送,可选的,基站通过专有信令向UE发送的Sidelink BWP配置信息包含Sidelink发送BWP索引信息。
其中,接收Sidelink BWP选择可以采用如下几种可选方式:
(1)UE高层告知需要接收的Sidelink业务对应的PPPP/5QI/QFI/PDB/priority,UE根据上述提到的Sidelink BWP配置信息和/或Sidelink BWP映射信息,确定对哪些Sidelink BWP进行数据接收。
(2)UE高层告知需要接收的Sidelink业务对应的可用子载波间隔列表, UE根据Sidelink BWP配置信息包含的子载波间隔信息,确定在哪些sidelink BWP进行数据接收。
图6是根据本发明实施例的数据包或逻辑信道对应的Sidelink接收BWP选择流程图,如图6所示,UE可以向基站发送需要接收的sidelink V2X业务类型信息和/或子载波间隔信息,基站向UE发送对应的sidelink BWP配置信息和/或sidelink BWP映射信息。其中V2X业务类型信息包括UE接收的V2X业务对应的PPPP/5QI/QFI/PDB/priority信息。基站收到该请求后,为UE配置对应的Sidelink接收BWP和/或Sidelink BWP映射信息。此外UE也可以直接向基站上报sidelink接收业务对应的子载波间隔信息列表,基站收到该请求后,为UE配置对应的sidelink接收BWP。UE收到上述配置信息后,在对应的Sidelink BWP进行sidelink数据发送。可选的,基站通过专有信令向UE发送的Sidelink BWP配置信息包含Sidelink接收BWP索引信息。
图7是根据本发明实施例的UE请求sidelink接收BWP配置的流程图,如图7所示,对于每个Sidelink BWP关联的PPPP/5QI/QFI/PDB/priority信息,除了给出一个或多个对应的PPPP/PDB/priority,还可以考虑给出PPPP/PDB/priority的门限,当数据包或逻辑信道的优先级高于门限值对应的优先级,或数据包或逻辑信道对应的PDB小于门限值对应的PDB,既可以使用该Sidelink BWP。
除此之外,如果UE的Sidelink逻辑信道预先配置有可使用的子载波间隔列表信息,UE可以根据Sidelink BWP配置中包含的子载波间隔信息,确定可以使用哪个Sidelink BWP进行对应数据包/逻辑信道的传输。
除了通过基站获取Sidelink BWP和/或Sidelink BWP映射信息,UE还可以通过预配置获取Sidelink BWP配置信息和/或Sidelink BWP映射信息,进行Sidelink发送和/或接收Sidelink BWP选择。
b)单播与广播/组播对应不同的BWP
在NR Sidelink中,可以考虑引入同步Sidelink BWP,同步sidelink BWP可用于Sidelink同步信号发送及接收。此外对于基于广播的Sidelink传输,如sidelink发现,Sidelink组播,或Sidelink广播,可以配置广播Sidelink BWP。同步Sidelink BWP与广播Sidelink BWP有可能相同。
图8是根据本发明实施例的initial BWP及普通BWP的示意图,如图8所示,配置两种类型的BWP,一种是initial BWP,另一种是普通BWP。对sidelink单播通信感兴趣的UE,可以在initial sidelink BWP上发送及接收PC5连接建立相关信息,建立PC5连接。在PC5连接建立过程或是PC5配置过程中,UE节点对之间可以协商后续sidelink单播通信数据发送/接收对应的sidelink BWP和/或对应的sidelink资源池。假设协商采用BWP3,则UE节点对之间仅需在BWP3上进行数据包的发送和接收。假设UE节点对之间有新的V2X业务数据需要发送,则UE节点对之间可进一步使用initial BWP或是BWP3进行协商,根据新V2X业务的服务质量QoS需求判断是否需要配置新的sidelink BWP进行单播数据发送及接收。
图9是根据本发明实施例的单播通信UE协商Sidelink数据传输的Sidelink BWP和/或资源池的流程图,如图9所示,UE1和UE2从基站接收或预配置单播通信initial sidelink BWP配置信息。假设UE1发现了UE2,并发起和UE2的PC5连接建立,则UE1可在initial sidelink BWP上发送PC5连接建立请求信息。对sidelink单播通信感兴趣的UE2监听initial sidelink BWP,接收到UE1发送的PC5连接建立请求,则UE2发送PC5连接建立响应消息。
UE1可向UE2发送Sidelink配置信息,其中包含以下信息至少之一:待发送数据的V2X业务信息,可使用的Sidelink BWP/资源池配置信息。其中待发送数据的业务信息包括以下至少之一:QoS参数(如PPPP/5QI/QFI/PDB/priority,GFBR),SDAP配置信息(QFI到终端与基站之间的数据承载(Data Resource Bearer,DRB)的映射,是否有服务数据适应协议(Service Data Adaptation Protocol,SDAP)子头),无线链路控制(Radio Link Control,RLC)配置信息(确认模式/非确认模式(AM/UM),bidirec or unidirec,是否乱序投递,t-assembly timer,RLC SN长度,retransmit,poll等),分组数据汇聚协议(Packet Data Convergence Protocol,PDCP)配置信息(PDCP序列号(Serial Number,SN)长度,discard timer,t-reordering timer,data split threshold,integrity protection,maxCID等),逻辑信道配置信息(逻辑信道标识,priority,PBR,allowSCS),MAC层配置信息等。可使用的Sidelink BWP/资源池配置信息包括Sidelink BWP的BWP标识,和/或BWP带宽,BWP位置,子载波间隔,CP等信息。
UE2在PC5接口接收到Sidelink配置后,向UE1发送可接收的V2X业务信息和/或支持的发送和/或接收Sidelink BWP/资源池配置。具体的,UE2根据自身能力,服务小区配置的Sidelink BWP/资源池配置,确定可以支持哪些UE1发送的Sidelink BWP/资源池配置。此外UE2还可以根据UE1发送的V2X业务信息建立相应的Sidelink承载和/或逻辑信道。如果有一些sidelink承载和/或逻辑信道无法建立,或是一些QoS flow无法支持,则UE2还可向UE1反馈建立成功和/或建立失败的Sidelink承载/逻辑信道/QoS flow列表。UE1接收到UE2的sidelink配置反馈信息后,可以开始发起V2X Sidelink数据传输。
需要注意的是,Sidelink配置信息可以与PC5连接建立复用相同的信令流程,也可以是不同的信令流程。进一步的,UE1发起Sidelink单播通信传输时,还可向服务基站发送V2X业务信息(具体可包含QoS flow的参数信息,如PDB/PER/priority/PBR等),服务基站收到信息后,发送可支持的QoS flow信息和/或sidelink承载/逻辑信道配置信息。可选的,UE2在收到UE1发送的Sidelink配置信息后,也可向服务基站发送V2X业务信息(具体可包含QoS flow的参数信息,如PDB/PER/priority/PBR等),服务基站收到信息后,发送可支持的QoS flow信息和/或sidelink承载/逻辑信道配置信息,UE2根据该信息向UE1反馈建立成功和/或建立失败的Sidelink承载/逻辑信道/QoS flow列表。
c)Sidelink BWP的激活/去激活以及切换
对于Sidelink,UE仅激活一个Sidelink BWP进行Sidelink发送。但是UE 有可能对不同类型的V2X业务接收感兴趣,因此UE可以同时对多个Sidelink BWP进行监听/接收。具体监听哪些SL BWP根据UE感兴趣的业务来决定。例如UE根据每个业务对应的可用SCS列表,判断需要监听哪些SL BWP。此外对单播通信感兴趣的UE可仅监听单播initial SL BWP,后续根据sidelink配置或根据PC5信令指示确定需要监听的单播SL BWP。
对于SL BWP激活及切换,可以考虑如下几种切换方式。
(1)在Uu口,UE接收基站通过RRC信令指示的UE激活SL BWP和/或SL BWP索引。
(2)在Uu口,UE接收基站通过DCI指示的发送UE激活的SL BWP和/或SL BWP索引。
(3)发送UE在LCP过程中,根据待发送数据对应的逻辑信道的PPPP/PDB/priority/5QI、QFI/子载波间隔信息,为其选择可使用的SL BWP。必要时发起SL BWP的切换和/或激活。
(4)在PC5接口上,UE节点通过PC5信令发送/接收激活的SL发送和/或接收BWP信息。
(5)在PC5接口上,UE可在SCI中携带激活的SL BWP index。指示对端UE切换到新的接收SL BWP。
UE从基站接收inactivity timer配置。如果单播UE在某个单播SL BWP上一段时间内没有接收到发送给自己的数据,inactivity timer超时,则UE可以fall back到单播initial BWP上;
在SL BWP切换时,例如UE从SL BWP1切换到SL BWP2,UE采用自治资源选择方式,而此时SL BWP2对应的资源池上sensing结果尚不可用,则UE可以先使用SL BWP2上的自治随机选择资源池。
d)Uu BWP与Sidelink BWP的相互影响
对于非成对频谱,用于Sidelink发现/Sidelink广播/Sidelink组播/Sidelink初始单播BWP可以与paging及SI复用相同的Uu BWP,从而使得UE可以在统一BWP上进行系统信息/寻呼信息,以及Sidelink信息的接收。
对于Sidelink使用Uu口UL资源的场景,配置相同的Sidelink BWP与UL BWP,或者Sidelink BWP与UL BWP尽可能在频域重合。
对于Sidelink使用dedicated PC5carrier的场景,Sidelink BWP与Uu口的BWP独立配置。
2)Sidelink资源池配置
Sidelink资源池配置信息包括Sidelink发送资源池配置信息,Sidelink接收资源池信息。具体的sidelink资源池配置指示Sidelink资源的时频域位置。Sidelink资源池信息还进一步给出SCI以及data的资源时频域位置信息,和/或子载波间隔信息。如时域信息可包括sl slot bitmap,而频域信息可通过SL BWP来指示,或者通过独立的起始RB位置,子信道/资源块(Resource Block,RB)数量等指示。对应于一个SL BWP频域,可以在其上配置不同的时域bitmap,对应于不 同的Sidelink资源池。此外在一个SL BWP内,频域上也可以进一步细分,对应于不同的sidelink资源池。
考虑到不同的Sidelink BWP关联了不同的numerology(对应不同子载波间隔),因此基于BWP的V2X Sidelink资源池也关联了不同的numerology,可用于支持不同类型的V2X业务。
其中,Sidelink资源池配置可以包含如下信息:
(1)本小区,邻小区,无覆盖。
其中,UE从基站接收的Sidelink资源池配置信息包括本小区的发送和/或接收资源池配置。此外UE还可以从基站接收相邻小区的发送和/或接收资源池配置,跨载波的发送和/或接收资源池配置。此外UE可以预配置各个载波上的发送及接收资源池,当UE处于无覆盖状态时,可以使用预配置的资源池进行Sidelink收发。
(2)LTE,NR。
其中,在LTE与NR共存的场景下,UE从基站接收LTE和/或NR对应的Sidelink发送和/或接收资源池配置。对应的资源池信息可携带版本或RAT信息。
(3)发现,通信。
Sidelink发现及Sidelink通信对应不同的Sidelink发送和/或接收资源池。UE从基站接收Sidelink发现和/或Sidelink通信对应Sidelink发送和/或接收资源池配置。
(4)单播,广播。
Sidelink通信中,Sidelink组播和/或广播与Sidelink单播可对应不同的发送和/或接收资源池。对于sidelink单播,资源池配置包含HARQ ACK/NACK传输对应的资源。对于sidelink单播,资源池配置包括初始发送和/或接收资源池,以及其他发送和/或接收资源池。其中初始发送和/或接收资源可对应于sidelink initial BWP。对于Sidelink广播,资源池配置可包含beam sweeping的周期及资源配置。UE从基站接收Sidelink组播/广播和/或Sidelink单播的资源池配置信息。对应的资源池配置信息可包含通信模式指示,如单播,组播,或广播。需要注意的是,UE可从基站接收邻区的Sidelink资源池配置信息。邻区的Sidelink资源池配置信息可包括邻区Sidelink组播/广播资源池信息,和/或邻区sidelink单播initial BWP对应的发送/接收资源池信息。
图10是根据本发明实施例的UE接收基站的Sidelink资源配置的流程图,如图10所示,对于idle态及inactive状态的UE,UE接收基站广播发送的V2X资源池信息,如果广播消息中没有V2X related SI信息,如果SIB1中指示了SI request RACH资源,则使用MSG1请求V2X related SI;如果SIB1中没有配置SI request RACH资源,则UE使用MSG3(RRCSystemInfoRequest)请求V2X relatedSI;基站收到后发送V2X related SI。此外,可在基站发送的SIB1中包含V2X support指示,如果有该指示而没有广播V2X sidelink资源配置信息,则UE进入RRC连接状态请求资源。
进一步的,图11是根据本发明实施例的UE请求V2X Sidelink配置信息的 流程图,如图11所示,考虑到前面描述的多种V2X资源池类型,UE不一定需要获取全部的V2X Sidelink相关资源池信息。UE向基站发送Sidelink配置信息请求,Sidelink配置信息请求中包含Sidelink同步,和/或sidelink发现,和/或sidelink广播/组播通信,和/或sidelink单播通信的指示信息。基站向UE发送对应的Sidelink配置信息。
处于RRC连接态的V2X UE,也可发送V2X sdielink配置请求给基站。基站通过专有信令为UE配置基站调度资源分配(Mode3)对应的发送和/或接收资源池,和/或自治资源分配(mode4)对应的发送和/或接收资源池。
具体的,V2X UE发送的V2X sidelink配置请求中可包含以下信息任意组合:对sidelink发现发送和/或接收的兴趣指示,对sidelink单播通信发送和/或接收的兴趣指示,对Sidelink组播/广播通信发送和/或接收的兴趣指示,sidelink单播通信目标标识,sidelink广播/组播通信目标标识。对于每一个sidelink单播通信目标标识,sidelink广播/组播通信目标标识,V2X sidelink配置请求中还可包含业务类型信息,如5QI,PDB,PER/PPPR,priority/PPPP,GFBR/PBR,ARP等。对于每一个sidelink单播通信目标标识,V2X sidelink配置请求中还可包含以下信息至少之一:单播对端UE标识,对端UE的地理位置和/或beam index/beam direction信息。
基站接收到连接态V2X UE发送的V2X Sidelink配置请求后,向UE发送V2X Sidelink资源配置。具体的,V2X Sidelink资源配置中包含Mode3和/或mode4资源池配置信息。
对于NR V2X,为了更好地支持多种不同V2X业务类型,基站发送的V2X sidelink资源配置中,可以同时包含mode 3和mode 4资源池给UE。UE可以更灵活地根据业务需求选择使用哪种资源,比如对于可靠性要求较高的业务,UE可选择mode 3资源;并且对于mode 4random resource pool,每个pool可关联一个或多个latency需求等级/范围(numerology体现),便于不同latency需求的traffic选择不同的资源池。此外基站还可以在不同的载波上配置不同mode的Sidelink资源池,如载波1上配置mode3发送资源池,载波2上配置mode4发送资源池。进一步的,对于单播接收感兴趣的V2X UE接收到的sidelink配置信息中还可以包含Sidelink单播初始接收资源池,或基于sidelink单播initial BWP的接收资源池。
除了上述sidelink资源池配置信息,UE接收的基站发送的V2X Sidelink配置中还可包含Sidelink承载和/或逻辑信道配置信息,具体的可包含以下信息任意组合:QoS参数(如PPPP/5QI/QFI/PDB/priority,GFBR),SDAP配置信息(QFI到DRB的映射,是否有SDAP子头),RLC配置信息(AM/UM,bidirec or unidirec,是否乱序投递,t-assembly timer,RLC SN长度,retransmit,poll等),PDCP配置信息(PDCP SN长度,discard timer,t-reordering timer,data split threshold,integrity protection,maxCID等),逻辑信道配置信息(逻辑信道标识,priority,PBR,allowSCS),MAC层配置信息等。可使用的Sidelink BWP/资源池配置信息包括Sidelink BWP的BWP标识,和/或BWP带宽,BWP位置,子载波间隔, CP等信息。UE接收到上述配置后,可相应的进行sidelink承载和/或逻辑信道的配置。
其中,UE接收到基站发送或系统预配置的发送和/或接收资源池配置后,可进行资源池选择,具体方法如下。
a)UE有可能对不同类型的V2X业务接收感兴趣,因此UE可以同时对多个Sidelink BWP/资源池进行监听/接收。具体监听哪些SL BWP/资源池根据UE感兴趣的业务来决定。例如UE根据每个业务对应的可用SCS列表/业务类型信息,判断需要监听哪些SL BWP/接收资源池。对单播通信感兴趣的UE可仅监听单播initial SL BWP或单播初始接收资源池,后续根据基站发送的sidelink配置或根据对端UE发送的PC5信令指示确定需要监听的其他单播SL BWP或单播接收资源池。
b)对于idle及inactive状态的UE或是处于连接态并决定采用自治资源分配的UE,从基站接收或是系统预配置多个Sidelink发送资源池后,UE根据待发送业务数据逻辑信道对应的可用子载波间隔(Sub-carrier spacing,SCS)列表,选择对应SCS的sidelink BWP/sidelink发送资源池。如果有多个可用的Sidelink BWP/Sidelink发送资源池,则UE进一步选择第一个Sidelink发送资源池,或者选择CBR值最小的sidelink发送资源池,或者任意选择一个sidelink发送资源池。
c)对于连接态的UE,可向基站上报sidelink承载/逻辑性信道的缓冲区状态,基站为UE分配sidelink资源。基站发送给UE的sidelink grant中包含sidelink BWP index和/或Sidelink发送资源池index。UE收到sidelink grant后,根据sidelink BWP index和/或Sidelink发送资源池对应的QoS信息(如PPPP/PDB/PPPR/5QI/SCS),以及Sidelink承载/逻辑信道对应的QoS参数(PPPP/PDB/PPPR/5QI/SCS)决定调度哪些逻辑信道的数据进行发送。
d)对于sidelink单播通信,单播通信发起UE向对端UE发送V2X sidelink BWP/sidelink发送资源池信息。对端UE接收到该信息后,监听V2X sidelink BWP/sidelink发送资源池信息对应的sidelink接收资源池。
3)连接态UE资源请求及分配
对于采用基站调度资源分配方式的UE,sidelink资源请求及分配可以分为如下几个步骤。
(1)UE发送SR。
UE发送SR请求sidelink通信资源,为了能够让基站区分Sidelink通信还是Uu通信,可采用如下SR资源配置及SR发送方法:a)基站配置Sidelink BWP/资源与SR configuration的映射关系;当UE使用相应的SR资源发送SR时,基站知道是要请求sidelink通信资源;b)为UE配置一个专用于请求sidelink通信资源的SR configuration;c)使用一个上行预留的LCID值,该LCID值特定用于指示请求sidelink通信资源;d)配置sidelinkUEInformation中上报的V2X频点与SR configuration的映射关系。
(2)UE发送BSR。
UE发送的Sidelink BSR中包含逻辑信道组标识,缓冲区大小,sidelink通信目标标识/索引。除此之外,UE发送的Sidelink BSR中还可携带SCS索引/SL BWP id。SCS索引/SL BWP id可告知基站UE的数据传输所需要的子载波间隔类型或SL BWP频域信息。
(3)基站发送sidelink grant。
考虑到基站为UE配置多个mode 3sidelink发送资源池和/或sidelink BWP,因此基站在发送的sidelink grant DCI中包含pool id和/或bwp id,用于指示DCI资源对应的sidelink发送资源池和/或sidelink BWP。
UE调度组装MAC PDU及发送,并UE收到sidelink grant后,判断资源对应的Sidelink发送资源池和/或sidelink BWP,判断该资源池或sidelink BWP对应的子载波间隔或是对应的QoS参数(PPPP/PDB/PER/5QI),然后UE调度对应子载波间隔或是QoS参数的逻辑信道的数据并组装成MAC PDU并通过物理层发送。
对于Sidelink资源分配,也可考虑支持Sidelink资源抢占。如基站可以抢占已经分配给UE1的sidelink资源,然后分配给UE2用于delay critical V2X数据的传输。为了支持该功能,UE从基站接收到的Sidelink配置信息中可包含SL-INT-RNTI。UE监听PDCCH上的SL-INT-RNTI,如果收到Sidelink发送中断指示,则UE会认为SL-INT-RNTI指示的资源位置没有可用信息。
4)半静态资源配置
UE可能同时需要发送多种V2X消息,且各种消息的周期不同、到达时间、大小不同,为了降低时延更好地利用资源,R14V2X支持多SPS进程。UE需要上报辅助信息(包到达周期、包到达offset、PPPP、maximum MAC PDU size),用于帮助基站配置以及激活合适的SPS进程。具体地,基站使用通过SL-V-SPS-RNTI加扰的DCI format 5A来激活或者释放通过SL SPS configuration index field来指示的SPS进程。
V2X业务同URLLC业务类似具有低延时高可靠需求,可以考虑通过RRC信令配置(Type1)sidelink通信SPS发送资源,从而减少时延。由于V2X消息存在多种消息类型,消息周期、到达时间、包大小不同,因此NR sidelink有必要支持多个type 1配置/SPS进程。此外,也可以考虑复用DCI进行SPS的激活和去激活机制(type2)。
可选地,UE向基站发送Sidelink V2X SPS辅助信息,UE接收基站发送的Sidelink V2X SPS配置。进一步的Sidelink V2X SPS辅助信息中可包含以下信息任意组合SPS类型指示(type1or type2),QoS指示(5QI/PDB/delay critical/PER),可用子载波间隔等。基站根据上述辅助信息,为UE配置type 1或type2的SPS资源。具体的Sidelink V2X SPS配置包括SPS周期,偏移量,SPS资源对应的SL发送资源池(索引)和/或SL BWP(索引),频域资源位置及大小等。
对于sidelink SPS资源,当UE不再使用SPS资源发送数据的时候,基站是无法获知的,需要考虑对SL SPS的去激活/释放,可考虑如下方法:1)UE估算 该类型数据大概持续多久/需要多少个周期的type 1资源,在UE辅助信息中上报持续时间,gNB据此信息配置type 1资源释放,或配置有效期;2)当UE不再需要某个type 1资源配置后(比如连续N次没有数据发送),则释放该type 1资源配置,并通知gNB(释放的type 1配置index)。
5)接入控制;
NR中提供unified access control,通过access category及access identity实现。Access identity是UE签约时配置在SIM卡上的,Access identity 11-15是special Access class,Access identity 3-10是预留值。Access category是综合UE情况及Access attempt定义的,其中Access category 8-31是预留的标准接入类型,而Access category 32-63是留给运营商自主定义的。
V2X业务具有高可靠低延时的需求,对于要进行V2X sidelink/Uu通信而发起的接入,可以通过为其定义Access identity或Access category(SA1定义)及配置barring参数控制其接入。UE NAS为access attempt确定access category及access identity。如果该access attempt没有被barring,则UE NAS执行access attempt(关联的access category及access identity(ies))到establishment cause的映射并提供给RRC,用于包含在连接请求中,从而使得gNB决定是否接受该请求。
实施例2
在本实施例中还提供了一种车联网中直通链路的资源配置装置,该装置用于实现上述实施例及示例实施方式,已经进行过说明的不再赘述。如以下所使用的,术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置可以以软件来实现,但是硬件,或者软件和硬件的组合的实现也是可能并被构想的。
图12是根据本发明实施例的车联网中直通链路的资源配置装置的结构示意图,该装置应用于终端侧,如图12所示包括:第一接收模块1202,用于接收直通链路Sidelink BWP/资源池配置信息;传输模块1204,与第一接收模块1202耦合连接,用于根据接收到的Sidelink BWP/资源池配置信息进行Sidelink数据传输。
其中,Sidelink BWP配置信息至少包括以下至少之一:BWP索引、BWP带宽、BWP位置、子载波间隔、循环前缀,一个或多个目标标识/PPPP/5QI/QFI/PDB/priority信息。
此外,SidelinkBWP配置信息还包括Sidelink BWP映射信息,指示目标标识/PPPP/5QI/QFI/PDB/priority信息与子载波间隔的映射关系。
在本实施例的可选实施方式中,该传输模块1204,还用于根据接收到的Sidelink BWP配置信息确定进行数据发送/接收的Sidelink BWP和/或Sidelink资源池。
在本实施例的一个可选实施方式中,该装置还包括:第一发送模块,用于在第一接收模块接收直通链路Sidelink BWP配置信息之前,向基站发送请求信 息。
其中,请求信息包括以下至少之一:V2X relatedSI请求;Sidelink同步、和/或Sidelink发现、和/或Sidelink广播/组播通信、和/或sidelink单播通信资源配置请求;LTE Sidelink资源配置请求;对Sidelink发现发送和/或接收的兴趣指示;对Sidelink单播通信发送和/或接收的兴趣指示;对Sidelink组播/广播通信发送和/或接收的兴趣指示;Sidelink单播通信目标标识或Sidelink广播/组播通信目标标识;PPPP/5QI/QFI/PDB/priority/PER/GFBR/PBR/ARP;子载波间隔信息;
对于每一个sidelink单播通信目标标识包括以下信息至少之一:单播对端UE标识、对端UE的地理位置和/或波束索引Beam Index/波束指示Beam Direction信息。
需要说明的是,本实施例中涉及到的Sidelink BWP/资源池信息包括以下至少之一:同步Sidelink BWP、广播Sidelink BWP/资源池、组播Sidelink BWP/资源池、单播Sidelink BWP/资源池。
此外,该Sidelink BWP/资源池还包括:初始Sidelink BWP/资源池;其中,初始Sidelink BWP/资源池用于Sidelink单播连接建立和/或单播数据传输资源配置信令发送或接收对应的sidelink BWP/资源池。
其中,单播数据传输资源配置的方式包括:第一终端向第二终端发送携带有V2X业务信息、可使用的Sidelink BWP和/或Sidelink资源池;第一终端接收第二终端发送的可接受的V2X业务信息和/或支持发送和/或接收的Sidelink BWP/资源池配置。
在本实施例的另一个可选实施方式中,本实施例中装置还可以包括:选择模块,用于根据数据包/逻辑信道对应的目标标识/PPPP/5QI/QFI/PDB/priority信息或可用子载波间隔信息,以及Sidelink BWP配置信息选择对应目标标识/PPPP/5QI/QFI/PDB/priority/可用子载波间隔的Sidelink BWP/资源池进行数据传输;或,处理模块,用于根据自身感兴趣接收的业务对应的目标标识/PPPP/5QI/QFI/PDB/priority信息或子载波间隔信息确定监听或接收的Sidelink BWP/资源池;或,第一激活模块,用于接收基站通过RRC信令指示的激活SL BWP/资源池索引;或,第二激活模块,用于接收基站通过DCI指示的激活SL BWP/资源池索引;或,第二接收模块,用于接收PC5信令包含的SL发送和/或接收BWP/资源池信息/索引;或,第三接收模块,用于接收SCI包含的激活/切换的SL BWP/资源池索引;或,第四接收模块,用于接收基站发送的inactivity timer配置,其中,当inactivity timer超时时,终端回到单播初始Sidelink BWP/资源池。
其中,对于非成对频谱,Sidelink BWP与paging及SI复用相同的Uu BWP;和/或,对于Sidelink使用Uu口UL资源的场景,配置相同的Sidelink BWP与UL BWP,或Sidelink BWP与UL BWP在频域重合;和/或,对于Sidelink使用dedicated PC5carrier的场景,Sidelink BWP与Uu口BWP独立配置。
其中,Sidelink资源池配置信息包括以下至少之一:Sidelink资源的时频域位置、SCI资源时频域位置信息、数据资源时频域位置信息、子载波间隔信息, 单播/组播/广播指示。
另外,Sidelink资源池配置信息包括以下至少之一:终端驻留或服务小区的发送和/或接收资源池配置信息、相邻小区/相邻频点发送和/或接收资源池配置信息、LTE和/或NR对应的Sidelink发送和/或接收资源池配置信息、Sidelink发现发送和/或接收资源池配置信息、Sidelink通信发送和/或接收资源池配置信息、Sidelink组播/广播/单播发送和/或接收Sidelink资源池配置信息。
可选地,本实施例的装置还可以包括:第五接收模块,用于接收基站发送的Sidelink承载和/或逻辑信道配置信息。
可选地,本实施例的装置还可以包括:第二发送模块,用于发送请求Sidelink资源的SR。
可选地,本实施例的装置还可以包括:第六接收模块,用于在第二发送模块发送请求Sidelink资源的SR之前,通过以下至少之一的方式接收SR配置信息:
接收基站配置的Sidelink BWP资源与SR资源的的映射信息;或,接收基站发送的专用于请求Sidelink通信/发现资源的SR配置;或,系统预留LCID值指示请求Sidelink发现和/或通信资源;或,接收基站发送的V2X频点与SR资源之间的映射关系。
可选地,本实施例的装置还可以包括:第三发送模块,用于向基站发送Sidelink BSR,其中,Sidelink BSR包括:子载波间隔索引或SL BWP ID。
可选地,本实施例的装置还可以包括:第六接收模块,用于接收基站发送的Sidelink grant DCI,其中,Sidelink grant DCI包括资源对应的sidelink发送资源池标识/索引和/或sidelink BWP标识/索引。
可选地,本实施例的装置还可以包括:确定模块,用于在第六接收模块接收基站发送的Sidelink grant DCI后,确定Sidelink grant对应的sidelink发送资源池和/或sidelink BWP;调度模块,用于根据确定的sidelink发送资源池和/或sidelink BWP对应的子载波间隔/目标标识/PPPP/5QI/QFI/PDB/priority信息,调度对应子载波间隔/目标标识/PPPP/5QI/QFI/PDB/priority的逻辑信道的数据组装成MAC PDU并进行Sidelink发送。
可选地,本实施例的装置还可以包括:第四发送模块,用于向基站发送Sidelink V2X SPS辅助信息;第七接收模块,用于接收基站发送的Sidelink V2X SPS配置。
其中,Sidelink V2X SPS辅助信息包括以下至少之一:SPS类型指示、持续时间、5QI/QFI/PDB/delay/critical/Priority、可用子载波间隔。
其中,Sidelink V2X SPS配置包括以下至少之一:SPS周期、偏移量、SPS资源对应的Sidelink BWP/资源池标识/索引、频域资源位置及大小、有效期。
需要说明的是,上述各个模块是可以通过软件或硬件来实现的,对于后者,可以通过以下方式实现,但不限于此:上述模块均位于同一处理器中;或者,上述各个模块以任意组合的形式分别位于不同的处理器中。
本发明的实施例还提供了一种存储介质,该存储介质中存储有计算机程序,其中,该计算机程序被设置为运行时执行上述任一项方法实施例中的步骤。
可选地,在本实施例中,上述存储介质可以被设置为存储用于执行以下步骤的计算机程序:步骤S1,终端接收直通链路Sidelink BWP/资源池配置信息;步骤S2,终端根据接收到的Sidelink BWP/资源池配置信息进行Sidelink数据传输。
可选地,在本实施例中,上述存储介质可以包括但不限于:U盘、只读存储器(Read-Only Memory,简称为ROM)、随机存取存储器(Random Access Memory,简称为RAM)、移动硬盘、磁碟或者光盘等各种可以存储计算机程序的介质。
本发明的实施例还提供了一种电子装置,包括存储器和处理器,该存储器中存储有计算机程序,该处理器被设置为运行计算机程序以执行上述任一项方法实施例中的步骤。
可选地,上述电子装置还可以包括传输设备以及输入输出设备,其中,该传输设备和上述处理器连接,该输入输出设备和上述处理器连接。
可选地,在本实施例中,上述处理器可以被设置为通过计算机程序执行以下步骤:步骤S1,终端接收直通链路Sidelink BWP/资源池配置信息;步骤S2,终端根据接收到的Sidelink BWP/资源池配置信息进行Sidelink数据传输;
可选地,本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例,本实施例在此不再赘述。
显然,本领域的技术人员应该明白,上述的本申请的各模块或各步骤可以用通用的计算装置来实现,它们可以集中在单个的计算装置上,或者分布在多个计算装置所组成的网络上,可选地,它们可以用计算装置可执行的程序代码来实现,从而,可以将它们存储在存储装置中由计算装置来执行,并且在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤,或者将它们分别制作成各个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样,本申请不限制于任何特定的硬件和软件结合。
以上所述仅为本申请的示例实施例而已,并不用于限制本申请,对于本领域的技术人员来说,本申请可以有各种更改和变化。凡在本申请的原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。

Claims (44)

  1. 一种车联网中直通链路的资源配置方法,包括:
    终端接收直通链路带宽部分BWP/资源池配置信息;
    所述终端根据接收到的所述直通链路BWP/资源池配置信息进行直通链路数据传输。
  2. 根据权利要求1所述的方法,其中,
    所述直通链路BWP配置信息包括以下至少之一:BWP索引、BWP带宽、BWP位置、子载波间隔、循环前缀,至少一个目标标识/就近服务每个数据包优先级PPPP/5G服务质量指示5QI/服务质量流标识符QFI/数据包时延预算PDB/优先级priority信息。
  3. 根据权利要求1所述的方法,所述直通链路BWP配置信息还包括:直通链路BWP映射信息,所述直通链路BWP映射信息用于指示目标标识/PPPP/5QI/QFI/PDB/priority信息与子载波间隔的映射关系。
  4. 根据权利要求1所述的方法,其中,所述终端根据接收到的所述直通链路BWP/资源池配置信息进行直通链路数据传输,包括:
    所述终端根据接收到的所述直通链路BWP配置信息确定进行数据发送/接收的直通链路BWP和直通链路资源池中的至少一种;。
  5. 根据权利要求1所述的方法,
    在终端接收直通链路直通链路BWP配置信息之前,所述方法还包括:所述终端向基站发送请求信息;
    其中,所述请求信息包括以下至少之一:
    V2X相关系统信息related SI请求;
    直通链路同步、直通链路发现、直通链路广播/组播通信,以及直通链路单播通信中至少一种的资源配置请求;
    长期演进LTE直通链路资源配置请求;
    对直通链路发现发送的兴趣指示和接收的兴趣指示中的至少一种;
    对直通链路单播通信发送的兴趣指示和接收的兴趣指示中的至少一种;
    对直通链路组播/广播通信发送的兴趣指示和接收的兴趣指示中的至少一种;
    直通链路单播通信目标标识,或直通链路广播/组播通信目标标识;
    PPPP/5QI/QFI/PDB/priority/分组错误率PER/保证流量比特率GFBR/策略路由PBR/地址解析协议ARP;
    子载波间隔信息;
    对于每一个直通链路单播通信目标标识包括以下信息至少之一:单播对端用户设备UE标识、对端UE的地理位置,以及波束索引Beam Index/波束指示Beam Direction信息。
  6. 根据权利要求1至5任一项所述的方法,其中,所述直通链路BWP/资源池信息包括以下至少之一:同步直通链路BWP、广播直通链路BWP/资源池、组播直通链路BWP/资源池,以及单播直通链路BWP/资源池。
  7. 根据权利要求1至5任一项所述的方法,其中,所述直通链路BWP/资 源池还包括:初始直通链路BWP/资源池;其中,所述初始直通链路BWP/资源池用于以下至少之一:直通链路单播连接建立,和单播数据传输资源配置信令发送或接收对应的直通链路BWP/资源池。
  8. 根据权利要求7所述的方法,其中,所述单播数据传输资源配置包括:
    第一终端向第二终端发送以下至少之一:携带有V2X业务信息的可使用的直通链路BWP,和携带有V2X业务信息的可使用的直通链路资源池;
    所述第一终端接收所述第二终端发送的以下至少之一:可接受的V2X业务信息,支持发送的直通链路BWP/资源池配置,以及支持接收的直通链路BWP/资源池配置。
  9. 根据权利要求4所述的方法,还包括以下之一:
    所述终端根据数据包/逻辑信道对应的目标标识/PPPP/5QI/QFI/PDB/priority信息或可用子载波间隔信息,以及所述直通链路BWP配置信息选择对应目标标识/PPPP/5QI/QFI/PDB/priority/可用子载波间隔的直通链路BWP/资源池进行数据传输;
    所述终端根据所述终端感兴趣接收的业务对应的目标标识/PPPP/5QI/QFI/PDB/priority信息或子载波间隔信息,确定监听或接收的直通链路BWP/资源池;
    所述终端接收基站通过无线资源控制RRC信令指示的激活直通链路BWP/资源池索引;
    所述终端接收所述基站通过下行控制信息DCI指示的激活直通链路BWP/资源池索引;
    所述终端接收直接通信PC5信令包含的直通链路发送BWP/资源池信息/索引,和接收BWP/资源池信息/索引中的至少一种;
    所述终端接收直通链路控制信息SCI包含的激活/切换的直通链路BWP/资源池索引;以及,
    所述终端接收所述基站发送的静态计时器inactivity timer配置,其中,在inactivity timer超时的情况下,所述终端回到单播初始直通链路BWP/资源池。
  10. 根据权利要求1所述的方法,其中,包括以下至少之一:
    对于非成对频谱,直通链路BWP与寻呼paging及系统信息SI复用相同的Uu BWP;
    对于直通链路使用Uu口上行链路UL资源的场景,配置相同的直通链路BWP与UL BWP,或直通链路BWP与UL BWP在频域重合;以及,
    对于直通链路使用dedicated PC5carrier的场景,直通链路BWP与Uu口BWP独立配置。
  11. 根据权利要求1所述的方法,其中,所述直通链路资源池配置信息包括以下至少之一:直通链路资源的时频域位置、SCI资源时频域位置信息、数据资源时频域位置信息、子载波间隔信息,以及单播/组播/广播指示。
  12. 根据权利要求1所述的方法,其中,
    所述直通链路资源池配置信息包括以下至少之一:
    所述终端驻留或服务小区的发送资源池配置信息和接收资源池配置信息中的至少一种;
    相邻小区/相邻频点发送资源池配置信息和接收资源池配置信息中的至少一种;
    LTE和/或新空口NR对应的直通链路发送和/或接收资源池配置信息;
    直通链路发现发送资源池配置信息和接收资源池配置信息中的至少一种;
    直通链路通信发送资源池配置信息和接收资源池配置信息中的至少一种;以及
    直通链路组播/广播/单播发送资源池配置信息和接收直通链路资源池配置信息中的至少一种。
  13. 根据权利要求1所述的方法,还包括:
    所述终端接收基站发送的直通链路承载信道配置信息和逻辑信道配置信息中的至少一种。
  14. 根据权利要求1所述的方法,还包括:
    所述终端发送请求直通链路资源的调度请求SR。
  15. 根据权利要求14所述的方法,还包括:
    在所述终端发送请求直通链路资源的SR之前,终端通过以下至少之一的方式接收SR配置信息:
    所述终端接收基站配置的直通链路BWP资源与SR资源的的映射信息;
    所述终端接收基站发送的专用于请求直通链路通信/发现资源的SR配置;
    系统预留逻辑信道标识LCID值指示请求直通链路发现资源和通信资源中的至少一种;以及,
    所述终端接收基站发送的V2X频点与SR资源之间的映射关系。
  16. 根据权利要求1所述的方法,还包括:
    所述终端向基站发送直通链路缓冲状态报告BSR,其中,所述直通链路BSR包括:子载波间隔索引或直通链路BWP ID。
  17. 根据权利要求1所述的方法,还包括:
    所述终端接收基站发送的直通链路grant DCI,其中,所述直通链路grant DCI包括直通链路资源池标识/索引,和直通链路BWP标识/索引中的至少一种。
  18. 根据权利要求17所述的方法,在所述终端接收基站发送的直通链路grant DCI后,所述方法还包括:
    所述终端确定直通链路grant对应的直通链路发送资源池和/或直通链路BWP;
    所述终端根据确定的直通链路发送资源池和/或直通链路BWP对应的子载波间隔/目标标识/PPPP/5QI/QFI/PDB/priority信息,调度对应子载波间隔/目标标识/PPPP/5QI/QFI/PDB/priority的逻辑信道的数据,组装成媒体介入控制层协议数据单元MAC PDU并进行直通链路发送。
  19. 根据权利要求1所述的方法,还包括:
    所述终端向基站发送直通链路V2X半静态调度SPS辅助信息;
    所述终端接收所述基站发送的直通链路V2X SPS配置。
  20. 根据权利要求19所述的方法,其中,所述直通链路V2X SPS辅助信息包括以下至少之一:
    SPS类型指示、持续时间、5QI/QFI/PDB/delay/critical/Priority,以及可用子载波间隔。
  21. 根据权利要求19所述的方法,其中,所述直通链路V2X SPS配置包括以下至少之一:
    SPS周期、偏移量、SPS资源对应的直通链路BWP/资源池标识/索引、频域资源位置及大小,以及有效期。
  22. 一种车联网中直通链路的资源配置装置,应用于终端侧,包括:
    第一接收模块,设置为接收直通链路直通链路带宽部分BWP/资源池配置信息;
    传输模块,设置为根据接收到的所述直通链路BWP/资源池配置信息进行直通链路数据传输。
  23. 根据权利要求22所述的装置,其中,
    所述直通链路BWP配置信息包括以下至少之一:BWP索引、BWP带宽、BWP位置、子载波间隔、循环前缀,至少一个目标标识/就近服务每个数据包优先级PPPP/5G服务质量指示5QI/服务质量流标识符QFI/数据包时延预算PDB/优先级priority信息。
  24. 根据权利要求22所述的装置,其中,所述直通链路BWP配置信息还包括直通链路BWP映射信息,指示目标标识/PPPP/5QI/服务质量流标识符QFI/包时延PDB/优先级priority信息与子载波间隔的映射关系。
  25. 根据权利要求22所述的装置,
    所述传输模块,还设置为根据接收到的所述直通链路BWP配置信息确定进行数据发送/接收的直通链路BWP和直通链路资源池中的至少一种。
  26. 根据权利要求22所述的装置,还包括:
    第一发送模块,设置为在第一接收模块接收直通链路直通链路BWP配置信息之前,向基站发送请求信息;
    其中,所述请求信息包括以下至少之一:
    V2X相关系统信息relatedSI请求;
    直通链路同步、直通链路发现、直通链路广播/组播通信、以及直通链路单播通信中至少一种的资源配置请求;
    长期演进LTE直通链路资源配置请求;
    对直通链路发现发送的兴趣指示和接收的兴趣指示中的至少一种;
    对直通链路单播通信发送的兴趣指示和接收的兴趣指示中的至少一种;
    对直通链路组播/广播通信发送的兴趣指示和接收的兴趣指示中的至少一种;
    直通链路单播通信目标标识,或直通链路广播/组播通信目标标识;
    PPPP/5QI/QFI/PDB/priority/分组错误率PER/保证流量比特率GFBR/策略路 由PBR/地址解析协议ARP;
    子载波间隔信息;
    对于每一个直通链路单播通信目标标识包括以下信息至少之一:单播对端用户设备UE标识、对端UE的地理位置,以及波束索引Beam Index/波束指示Beam Direction信息。
  27. 根据权利要求22至26任一项所述的装置,其中,所述直通链路BWP/资源池信息包括以下至少之一:同步直通链路BWP、广播直通链路BWP/资源池、组播直通链路BWP/资源池,以及单播直通链路BWP/资源池。
  28. 根据权利要求22至26任一项所述的装置,所述直通链路BWP/资源池还包括:初始直通链路BWP/资源池;其中,所述初始直通链路BWP/资源池用于以下至少之一:直通链路单播连接建立,和单播数据传输资源配置信令发送或接收对应的直通链路BWP/资源池。
  29. 根据权利要求28所述的装置,其中,所述单播数据传输资源配置的方式包括:
    第一终端向第二终端发送以下至少之一:携带有V2X业务信息的可使用的直通链路BWP,和携带有V2X业务信息的可使用的直通链路资源池;
    所述第一终端接收所述第二终端发送的以下至少之一:可接受的V2X业务信息,支持发送的直通链路BWP/资源池配置,以及支持接收的直通链路BWP/资源池配置。
  30. 根据权利要求25所述的装置,还包括以下之一:
    选择模块,设置为根据数据包/逻辑信道对应的目标标识/PPPP/5QI/QFI/PDB/priority信息或可用子载波间隔信息,以及所述直通链路BWP配置信息选择对应目标标识/PPPP/5QI/QFI/PDB/priority/可用子载波间隔的直通链路BWP/资源池进行数据传输;
    处理模块,设置为根据所述终端感兴趣接收的业务对应的目标标识/PPPP/5QI/QFI/PDB/priority信息或子载波间隔信息,确定监听或接收的直通链路BWP/资源池;
    第一激活模块,设置为接收基站通过无线资源控制RRC信令指示的激活直通链路BWP/资源池索引;
    第二激活模块,设置为接收所述基站通过下行控制信息DCI指示的激活直通链路BWP/资源池索引;
    第二接收模块,设置为接收直接通信PC5信令包含的直通链路发送BWP/资源池信息/索引,和接收BWP/资源池信息/索引中的至少一种;
    第三接收模块,设置为接收直通链路控制信息SCI包含的激活/切换的直通链路BWP/资源池索引;以及,
    第四接收模块,设置为接收所述基站发送的静态计时器inactivity timer配置,其中,在inactivity timer超时的情况下,所述终端回到单播初始直通链路BWP/资源池。
  31. 根据权利要求22所述的装置,其中,设置为执行以下至少之一:
    对于非成对频谱,直通链路BWP与寻呼paging及系统信息SI复用相同的Uu BWP;
    对于直通链路使用Uu口上行链路UL资源的场景,配置相同的直通链路BWP与UL BWP,或直通链路BWP与UL BWP在频域重合;以及,
    对于直通链路使用dedicated PC5carrier的场景,直通链路BWP与Uu口BWP独立配置。
  32. 根据权利要求22所述的装置,其中,所述直通链路资源池配置信息包括以下至少之一:直通链路资源的时频域位置、SCI资源时频域位置信息、数据资源时频域位置信息、子载波间隔信息,以及单播/组播/广播指示。
  33. 根据权利要求22所述的装置,其中,
    所述直通链路资源池配置信息包括以下至少之一:
    终端驻留或服务小区的发送资源池配置信息和接收资源池配置信息中的至少一种;
    相邻小区/相邻频点发送资源池配置信息和接收资源池配置信息中的至少一种;
    LTE和/或新空口NR对应的直通链路发送和/或接收资源池配置信息;
    直通链路发现发送资源池配置信息和接收资源池配置信息中的至少一种;
    直通链路通信发送资源池配置信息和接收资源池配置信息中的至少一种;以及
    直通链路组播/广播/单播发送资源池配置信息和接收直通链路资源池配置信息中的至少一种。
  34. 根据权利要求22所述的装置,还包括:
    第五接收模块,设置为接收基站发送的直通链路承载信道配置信息和逻辑信道配置信息中的至少一种。
  35. 根据权利要求22所述的装置,还包括:
    第二发送模块,设置为发送请求直通链路资源的调度请求SR。
  36. 根据权利要求35所述的装置,还包括:
    第六接收模块,设置为在第二发送模块发送请求直通链路资源的SR之前,通过以下至少之一的方式接收SR配置信息:
    接收基站配置的直通链路BWP资源与SR资源的的映射信息;
    接收基站发送的专用于请求直通链路通信/发现资源的SR配置;
    系统预留逻辑信道标识LCID值指示请求直通链路发现资源和通信资源中的至少一种;以及,
    接收基站发送的V2X频点与SR资源之间的映射关系。
  37. 根据权利要求22所述的装置,还包括:
    第三发送模块,设置为向基站发送直通链路缓冲在状态报告BSR,其中,所述直通链路BSR包括:子载波间隔索引或直通链路BWP ID。
  38. 根据权利要求22所述的装置,还包括:
    第六接收模块,设置为接收基站发送的直通链路grant DCI,其中,所述直 通链路grant DCI包括资源对应的直通链路发送资源池标识/索引,和直通链路BWP标识/索引中的至少一种。
  39. 根据权利要求38所述的装置,还包括:
    确定模块,设置为在所述第六接收模块接收基站发送的直通链路grant DCI后,确定直通链路grant对应的直通链路发送资源池和直通链路BWP中的至少一种;
    调度模块,设置为根据确定的直通链路发送资源池和直通链路BWP中的至少一种对应的子载波间隔/目标标识/PPPP/5QI/QFI/PDB/priority信息,调度对应子载波间隔/目标标识/PPPP/5QI/QFI/PDB/priority的逻辑信道的数据组装成媒体介入控制层协议数据单元MAC PDU并进行直通链路发送。
  40. 根据权利要求22所述的装置,还包括:
    第四发送模块,设置为向基站发送直通链路V2X半静态调度SPS辅助信息;
    第七接收模块,设置为接收所述基站发送的直通链路V2X SPS配置。
  41. 根据权利要求40所述的装置,其中,所述直通链路V2X SPS辅助信息包括以下至少之一:
    SPS类型指示、持续时间、5QI/QFI/PDB/delay/critical/Priority,以及可用子载波间隔。
  42. 根据权利要求40所述的装置,其中,所述直通链路V2X SPS配置包括以下至少之一:
    SPS周期、偏移量、SPS资源对应的直通链路BWP/资源池标识/索引、频域资源位置及大小,以及有效期。
  43. 一种存储介质,所述存储介质中存储有计算机程序,其中,所述计算机程序被设置为运行时执行所述权利要求1至21任一项中所述的方法。
  44. 一种电子装置,包括存储器和处理器,所述存储器中存储有计算机程序,所述处理器被设置为运行所述计算机程序以执行所述权利要求1至21任一项中所述的方法。
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CN116405902A (zh) 2023-07-07
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EP3836686A4 (en) 2021-11-10
US20210168814A1 (en) 2021-06-03
EP3836686A1 (en) 2021-06-16
KR20210042930A (ko) 2021-04-20

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