WO2020038431A1 - V2x的通信方法和装置 - Google Patents

V2x的通信方法和装置 Download PDF

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Publication number
WO2020038431A1
WO2020038431A1 PCT/CN2019/101960 CN2019101960W WO2020038431A1 WO 2020038431 A1 WO2020038431 A1 WO 2020038431A1 CN 2019101960 W CN2019101960 W CN 2019101960W WO 2020038431 A1 WO2020038431 A1 WO 2020038431A1
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WIPO (PCT)
Prior art keywords
resource
transmission
information
transmission parameter
terminal device
Prior art date
Application number
PCT/CN2019/101960
Other languages
English (en)
French (fr)
Inventor
酉春华
范强
郭菁睿
刘星
Original Assignee
华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to BR112021002874-9A priority Critical patent/BR112021002874A2/pt
Priority to EP19851108.1A priority patent/EP3836579A4/en
Publication of WO2020038431A1 publication Critical patent/WO2020038431A1/zh
Priority to US17/181,727 priority patent/US20210176610A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/52—Allocation or scheduling criteria for wireless resources based on load
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • This application relates to communication technology, and in particular, to a V2X communication method and device.
  • V2X Vehicle-to-everything
  • V2X includes vehicle-road infrastructure (V2I) services, vehicle-network (V2N) services, and vehicle-people (V2N) services.
  • V2P Vehicle-to-pedestrian
  • V2V vehicle-to-vehicle
  • LTE Long Term Evolution
  • the PC5 air interface supports two resource allocation modes: mode 3 and mode 4.
  • mode 3 terminal devices use dedicated resources for communication.
  • the dedicated resources can only be used by one terminal device.
  • Network devices use wireless network temporary identification (radio network).
  • Temporary identifier (RNTI) is allocated to a dedicated resource for a terminal device.
  • Mode 4 uses competitive resources.
  • the competitive resources can be shared by multiple terminal devices.
  • Network devices can broadcast the competitive resources through system messages.
  • This application provides a V2X communication method and device, so that the transmission parameters can meet the requirements of different services.
  • a first aspect of the present application provides a V2X communication method, including:
  • the terminal device obtains a first correspondence between service information and a first transmission parameter.
  • the service information includes any one or more of the following: a service identifier, a single packet priority of a service, PPPP, a single packet reliability of a service, or Quality of service flow identification QFI;
  • the terminal device allocates the transmission resource for a data packet corresponding to the service information according to the first correspondence and a second transmission parameter corresponding to the transmission resource.
  • the first transmission parameter includes any one or more of the following parameters: information of allowed subcarrier interval SCS, duration of maximum physical side-line shared channel PSSCH, information of allowed cells, allowed Frequency point information, minimum block error rate information, allowed first-type resource information, allowed second-type resource information, allowed modulation and coding scheme MCS table information, and allowed air interface information, wherein the first One type of resource is a resource pre-configured by a network device, and the second type of resource is a semi-static scheduling resource or a dynamic scheduling resource.
  • the first correspondence relationship is stored in the terminal device in advance.
  • the first correspondence relationship is sent by the network device to the terminal device.
  • the acquiring, by the terminal device, a second transmission parameter corresponding to the transmission resource includes:
  • the terminal device receives the indication information of the association information of the second transmission parameter corresponding to the transmission resource sent by the network device, and determines the indication information according to the indication information of the association information of the second transmission parameter corresponding to the transmission resource.
  • a second transmission parameter corresponding to the transmission resource A second transmission parameter corresponding to the transmission resource.
  • the acquiring, by the terminal device, a second transmission parameter corresponding to the transmission resource includes:
  • the terminal device determines, according to the service information of the data packet to be transmitted and the first correspondence, a transmission parameter that satisfies the service information of the data packet to be transmitted as a second transmission parameter corresponding to the transmission resource.
  • the acquiring, by the terminal device, a second transmission parameter corresponding to the transmission resource includes:
  • the terminal device determines that a default transmission parameter is a second transmission parameter corresponding to the transmission resource.
  • the acquiring, by the terminal device, the transmission resource includes:
  • the transmission resource is a dynamic scheduling resource, and the information of the transmission resource is carried in a physical downlink control channel (PDCCH).
  • the PDCCH also carries an identifier of a broadband part BWP.
  • the method further includes:
  • the terminal device When the terminal device receives the PDCCH, the terminal device switches from the current BWP to the BWP corresponding to the BWP identifier according to the BWP identifier, and starts or restarts a BWP activation timer, and the BWP activates
  • the timer is used to control the terminal device to switch from the current BWP to a default BWP or an initial BWP after the timeout, and the initial BWP is a BWP used by the terminal device for initial access to a cell.
  • the acquiring, by the terminal device, the transmission resource includes:
  • the transmission parameters corresponding to multiple resource pools associated with each region are different, and the resource pools associated with multiple regions do not overlap, and the third transmission parameter is associated with the first transmission parameter, or the first Three transmission parameters belong to the first transmission parameter;
  • the terminal device selects the transmission resource from a resource pool used by the data packet to be transmitted.
  • the acquiring, by the terminal device, the transmission resource includes:
  • the terminal device Receiving, by the terminal device, a third correspondence between the service information and the subchannel / fourth transmission parameter sent by the network device, where the carrier includes multiple resource pools, each resource pool includes multiple subchannels, and each resource pool The transmission parameters corresponding to the multiple subchannels are different, the fourth transmission parameter is associated with the first transmission parameter, or the fourth transmission parameter belongs to the first transmission parameter;
  • the terminal device selects the transmission resource from a set of subchannels used by the data packet to be transmitted.
  • a second aspect of the present application provides a V2X communication method, including:
  • the network device sends the first correspondence between the service information and the first transmission parameter to the terminal device.
  • the service information includes any one or more of the following information: service identification, single packet priority of the service, PPPP, and single packet of the service.
  • the first transmission parameter includes any one or more of the following parameters: information on the allowed subcarrier interval SCS, the length of the maximum physical side shared channel PSSCH, and the allowed cell Information, allowed frequency information, minimum block error rate information, allowed first-type resource information, allowed second-type resource information, allowed modulation and coding scheme MCS table information, and allowed air interface information
  • the first type of resource is a resource pre-configured by a network device
  • the second type of resource is a semi-static scheduling resource or a dynamic scheduling resource.
  • the method further includes:
  • a PDCCH to the terminal device, where the PDCCH includes information of transmission resources and an identifier of a broadband part BWP, and the identifier of the BWP is used to instruct the terminal device to switch to a BWP corresponding to the identifier of the BWP .
  • the method further includes:
  • the network device sends configuration information of a BWP activation timer to the terminal device, where the BWP activation timer is used to control the terminal device to switch from the current BWP to a default BWP or an initial BWP after the timeout, and the initial BWP is all
  • the terminal equipment is used for the initial access of the BWP.
  • the method further includes:
  • the third transmission parameter is associated with the first transmission parameter, or the The third transmission parameter belongs to the first transmission parameter.
  • the method further includes:
  • the network device Sending, by the network device, a third correspondence between the service information and a subchannel / fourth transmission parameter to the terminal device, where the carrier includes multiple resource pools, each resource pool includes multiple subchannels, and each resource The transmission parameters corresponding to the multiple subchannels included in the pool are different, and the fourth transmission parameter is associated with the first transmission parameter, or the fourth transmission parameter belongs to the first transmission parameter.
  • a third aspect of the present application provides a V2X communication device, including:
  • a first obtaining module is configured to obtain a first correspondence between service information and a first transmission parameter, where the service information includes any one or more of the following information: a service identifier, a single packet priority of a service, PPPP, Single packet reliability PPPR or quality of service flow identification QFI;
  • a second acquisition module configured to obtain, by the terminal device, a transmission resource and a second transmission parameter corresponding to the transmission resource, where the second transmission parameter has an association relationship with the first transmission parameter, or the second transmission The parameter belongs to the first transmission parameter;
  • a resource allocation module is configured for the terminal device to allocate the transmission resource for a data packet corresponding to the service information according to the first correspondence relationship and a second transmission parameter corresponding to the transmission resource.
  • the first transmission parameter includes any one or more of the following parameters: information of allowed subcarrier interval SCS, duration of maximum physical side-line shared channel PSSCH, information of allowed cells, allowed Frequency point information, minimum block error rate information, allowed first-type resource information, allowed second-type resource information, allowed modulation and coding scheme MCS table information, and allowed air interface information, wherein the first One type of resource is a resource pre-configured by a network device, and the second type of resource is a semi-static scheduling resource or a dynamic scheduling resource.
  • the first correspondence relationship is stored in the terminal device in advance.
  • the first correspondence relationship is sent by the network device to the terminal device.
  • the second obtaining module is specifically configured to:
  • Second transmission parameter Or receiving the indication information of the association information of the second transmission parameter corresponding to the transmission resource sent by the network device, and determining the correspondence of the transmission resource according to the indication information of the association information of the second transmission parameter corresponding to the transmission resource. Second transmission parameter.
  • the second obtaining module is specifically configured to:
  • the second obtaining module is specifically configured to:
  • the default transmission parameter is a second transmission parameter corresponding to the transmission resource.
  • the second obtaining module is specifically configured to:
  • the transmission resource is a dynamic scheduling resource, and the information of the transmission resource is carried in a physical downlink control channel PDCCH, and the PDCCH also carries a wideband BWP identifier;
  • the device further includes:
  • a switching module configured to, when the terminal device receives the PDCCH, switch from the current BWP to a BWP corresponding to the BWP identifier according to the BWP identifier;
  • a timer control module is used to start or restart a BWP activation timer.
  • the BWP activation timer is used to control the terminal device to switch from a current BWP to a default BWP or an initial BWP after the timeout, and the initial BWP is the terminal device.
  • BWP for initial access of a cell.
  • the second obtaining module is specifically configured to:
  • the second obtaining module is specifically configured to:
  • the carrier includes multiple resource pools, each resource pool includes multiple subchannels, and each resource pool includes multiple subchannels
  • the transmission parameters corresponding to the channels are different, the fourth transmission parameter is associated with the first transmission parameter, or the fourth transmission parameter belongs to the first transmission parameter;
  • a fourth aspect of the present application provides a V2X communication device, including:
  • a sending module configured to send a first correspondence between service information and a first transmission parameter to the terminal device, where the service information includes any one or more of the following information: a service identifier, a single packet priority of a service, PPPP, a service Single packet reliability PPPR or quality of service flow identification QFI, the first transmission parameter includes any one or more of the following parameters: information on the allowed subcarrier interval SCS, the maximum physical sideline shared channel PSSCH duration, Information about allowed cells, information about allowed frequency points, minimum block error rate information, information about allowed first-type resources, information about allowed second-type resources, information about allowed modulation and coding scheme MCS tables, and allowed air interfaces Information, wherein the first type of resource is a resource pre-configured by a network device, and the second type of resource is a semi-static scheduling resource or a dynamic scheduling resource.
  • the service information includes any one or more of the following information: a service identifier, a single packet priority of a service, PPPP, a service Single packet reliability PPPR or
  • the sending module is further configured to:
  • the terminal device Sending a physical downlink control channel PDCCH to the terminal device, where the PDCCH includes information on transmission resources and an identifier of a broadband BWP, and the identifier of the BWP is used to instruct the terminal device to switch to a BWP corresponding to the identifier of the BWP .
  • the sending module is further configured to:
  • the BWP activation timer is used to control the terminal device to switch from the current BWP to the default BWP or the initial BWP after the timeout, the initial BWP is used by the terminal device BWP for initial access.
  • the sending module is further configured to:
  • multiple resource pools on the carrier correspond to multiple area identifiers, and each area is associated with multiple resources Pool, the transmission parameters corresponding to multiple resource pools associated with each region are different, and the resource pools associated with multiple regions do not overlap, the third transmission parameter is associated with the first transmission parameter, or the third transmission parameter Belongs to the first transmission parameter.
  • the sending module is further configured to:
  • the carrier includes multiple resource pools, each resource pool includes multiple subchannels, and each resource pool includes multiple The transmission parameters corresponding to the sub-channels are different, and the fourth transmission parameter is associated with the first transmission parameter, or the fourth transmission parameter belongs to the first transmission parameter.
  • a fifth aspect of the present application provides a terminal device including a processor, a memory, and a transceiver.
  • the memory is used to store instructions.
  • the transceiver is used to communicate with other devices.
  • the processor is used to execute storage in the memory. Instructions to enable the terminal device to execute the method according to the first aspect of the present application.
  • a sixth aspect of the present application provides a network device, including a processor, a memory, and a transceiver.
  • the memory is used to store instructions.
  • the transceiver is used to communicate with other devices.
  • the processor is used to execute storage in the memory. Instructions to enable the network device to execute the method according to the second aspect of the present application.
  • a seventh aspect of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores instructions, and when the instructions are executed, cause a computer to execute the method according to the first aspect of the present application.
  • An eighth aspect of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores instructions, and when the instructions are executed, cause a computer to execute the method according to the second aspect of the present application.
  • a ninth aspect of the present application provides a system on a chip, which can be applied to a terminal device.
  • the system on a chip includes: at least one communication interface, at least one processor, at least one memory, the communication interface, and memory.
  • the processor and the processor are interconnected through a bus.
  • the processor executes instructions stored in the memory, so that the terminal device can execute the method provided in the first aspect of the present application.
  • a tenth aspect of the present application provides a system on a chip, which is applicable to network devices.
  • the system on a chip includes: at least one communication interface, at least one processor, at least one memory, the communication interface, and memory It is interconnected with a processor through a bus, and the processor executes instructions stored in the memory, so that the network device can execute the method provided in the second aspect of the present application.
  • An eleventh aspect of the present application provides a communication system including a terminal device and a network device, where the terminal device is configured to execute the method provided in the first aspect of the application, and the network device is configured to execute the second Methods provided.
  • This application provides a V2X communication method and device, including: a terminal device acquiring a first correspondence between service information and a first transmission parameter, where the service information includes any one or more of the following information: service identifier, service PPPP, PPPR or QFI of the service.
  • the first transmission parameter includes any one or more of the following parameters: allowed SCS information, maximum PSSCH duration, allowed cell information, allowed frequency information, minimum error Block rate information, information about allowed first-type resources, information about allowed second-type resources, information about allowed MCS tables, and information about allowed air interfaces; obtain transmission resources and second transmission parameters corresponding to the transmission resources, and A corresponding relationship and a second transmission parameter corresponding to the transmission resource allocate a transmission resource for a data packet corresponding to the service information.
  • the method can select different transmission parameters for data packets corresponding to different services / PPPP / PPPR / QFI according to the service information of the data packets, so that the transmission parameters can meet service requirements.
  • FIG. 1 is a schematic diagram of a network architecture applicable to this application
  • FIG. 2 is a flowchart of a V2X communication method provided in Embodiment 1 of the present application;
  • FIG. 3 is a flowchart of a method for acquiring a transmission resource according to Embodiment 2 of the present application;
  • FIG. 4 is a schematic diagram of a correspondence relationship between a resource pool, an area identifier, and a transmission parameter on a carrier;
  • FIG. 5 is a flowchart of a method for acquiring a transmission resource according to Embodiment 3 of the present application.
  • FIG. 6 is a schematic diagram of a correspondence relationship between a resource pool, a subchannel, and a transmission parameter on a carrier;
  • FIG. 8 is a schematic structural diagram of a V2X communication device according to Embodiment 5 of the present application.
  • FIG. 9 is a schematic structural diagram of a V2X communication device according to Embodiment 6 of the present application.
  • FIG. 10 is a schematic structural diagram of a terminal device according to an eighth embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a network device according to Embodiment 9 of the present application.
  • the network architecture and service scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Those of ordinary skill in the art may know that The evolution of the architecture and the emergence of new business scenarios. The technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • FIG. 1 is a schematic diagram of a network architecture applicable to this application.
  • the network architecture includes a base station and two terminal devices, and the base station and the terminal devices communicate through an Uu air interface, and the terminal devices communicate through a PC5 air interface. Both air interface and PC5 air interface can be used for V2X communication.
  • FIG. 1 is only an example and is not limited, and the network architecture may further include more base stations and terminal devices.
  • the terminal equipment in this application is also referred to as terminal, user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal , Wireless communication equipment, user agent, or user device.
  • Terminal equipment can be stations (ST) in wireless local area networks (WLAN), cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loops loop (WLL) stations, personal digital processing (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, and next-generation communication systems,
  • WLAN wireless local area networks
  • SIP session initiation protocol
  • WLL wireless local loops loop
  • PDA personal digital processing
  • handheld devices with wireless communication capabilities computing devices or other processing devices connected to wireless modems
  • in-vehicle devices wearable devices
  • next-generation communication systems For example, a terminal device in a 5-generation (5G) network or a terminal device in a future evolved public land mobile network
  • the base station can be an access point (AP) in a WLAN, a global system for mobile communication (GSM), or a base station in a code division multiple access (CDMA) base station. station (BTS), or a base station (nodeB, NB) in WCDMA, or an evolved base station (eNB or eNodeB) in LTE, or a relay station or access point, or a new one in an NR system A new generation base station (new generation node B, gNodeB), etc.
  • the gNodeB may adopt a form in which a central unit (central unit (CU)) and a distributed unit (distributed unit (DU)) are separated.
  • CU central unit
  • DU distributed unit
  • the unit in this application refers to a functional unit or a logical unit. It can be in the form of software and its function can be implemented by the processor executing program code; it can also be in the form of hardware.
  • the transmission parameters corresponding to the transmission resources used by the terminal devices are fixed parameters.
  • the transmission parameters include numerology (parameter set) and physical sidelink shared channels. PSSCH) duration, etc.
  • numerology refers to a set of parameters of sub-carrier spacing (SCS) and cyclic prefix (CP).
  • SCS sub-carrier spacing
  • CP cyclic prefix
  • FIG. 2 is a flowchart of a V2X communication method provided in Embodiment 1 of the application. As shown in FIG. 2, the method in this embodiment may include:
  • Step S101 The terminal device acquires a first correspondence between service information and a first transmission parameter.
  • the terminal device may obtain a correspondence relationship between one or more service information first transmission parameters. For example, the terminal device acquires the correspondence between the service information 1 and the service information 2 and the first transmission parameter.
  • Each kind of service information includes any one or more of the following information: service identification, service single packet priority (PPPP), service single packet reliability (PPPR), or service Quality Flow Identifier (QFI).
  • the service identifier is used to uniquely identify a service.
  • the service identifier may be a destination identifier (destination ID).
  • PPPR, PPPR, and QFI are quantified parameters of service quality of service (QoS).
  • Each service can define at least one PPPP, and / or, and at least one PPPR, and / or, it can also define At least one QFI.
  • the PPPP, PPPR, or QFI of different services can be the same or different.
  • QFI is used to identify a QoS flow, which can be a fine-grained QoS differentiation mechanism.
  • a QoS flow represents a type of flow with the same QoS parameters.
  • the QoS parameters include any of the following parameters: Or more:
  • the resource type may include any one or any of the following: guaranteed bit rate (GBR), non-GBR, non-GBR (delay critical bitrate), where GBR is used to indicate a guaranteed transmission resource for QoS flow.
  • GBR guaranteed bit rate
  • the resource type is used to determine whether the guaranteed flow bit rate (GFBR) value of the QoS flow level associated with the dedicated network resource is permanently allocated.
  • Priority information can be used to indicate the scheduling priority between different QoS flows, the high-priority QoS flow priority scheduling, and the priority associated with 5G QoS characteristics to indicate the priority of QoS flow scheduling resources.
  • Packet delay budget Packet delay budget
  • PDB Packet delay budget
  • the PDB may define an upper limit for the delay of a data packet between a terminal device and a user plane function (UPF).
  • UPF user plane function
  • packet loss rate packet error rate
  • PER packet error rate
  • the PER may define an upper limit of the proportion of packet loss of a protocol data unit (PDU) (such as an IP data packet).
  • PDU may be a data packet that the sender has sent but has not successfully received.
  • Average window For example, the average window can be defined only for GBR QoS flow.
  • the average window can represent the duration used when calculating guaranteed flow bit rate (GFBR) or the maximum flow bit rate (MFBR). Duration.
  • GFBR guaranteed flow bit rate
  • MFBR maximum flow bit rate
  • Maximum data burst volume (maximum data burst volume, MDBV).
  • the MDBV can only be used for low-latency GBR resource types.
  • the MDBV can represent the maximum service that a 5G access network (5G Access Network, 5G-AN) needs to serve during a 5G-AN PDB (such as a 5G-AN partial PDB) The amount of data.
  • 5G-AN 5G Access Network
  • 5G-AN PDB such as a 5G-AN partial PDB
  • the first transmission parameter includes any one or more of the following parameters:
  • the information of allowed SCS may exist in the form of a list (allowedSCS-list).
  • the SCS allowed by the sidelink data corresponding to the service information may be one or more.
  • the sidelink data corresponding to PPPR1 is allowed to be transmitted on a resource with an SCS of 15Khz
  • the sidelink data corresponding to PPPR2 is allowed to be transmitted on a resource with an SCS of 15kHz and 120kHz.
  • the sidelink data corresponding to PPPR the larger the SCS, the higher the reliability of the sidelink data and the better the anti-Doppler frequency offset.
  • the sidelink data involved in the embodiment of the present application is data transmitted through the sidelink, and may be V2X data.
  • the maximum PSSCH duration (max-PSSCHduration).
  • the length of the PSSCH can be the duration of the time domain resources occupied by a medium access control protocol data unit (MAC, PDU, MAC, PDU).
  • MAC medium access control protocol data unit
  • MAC medium access control protocol data unit
  • MAC medium access control protocol data unit
  • MAC medium access control protocol data unit
  • MAC medium access control protocol data unit
  • a terminal device transmits sidelink data (such as sidelink MAC PDU)
  • sidelink data such as sidelink MAC PDU
  • the duration of the PSSCH cannot be greater than the duration of the maximum PSSCH.
  • the shorter the delay the shorter the PSSCH duration.
  • the maximum PSSCH duration corresponding to service information 1 is T1
  • the maximum PSSCH duration corresponding to service information 2 is T2, where T1 is greater than T2, or the maximum PSSCH duration corresponding to PPPP1 is T3, and the maximum PSSCH corresponding to PPPP 2 is The duration is T4, where T3 is greater than T4.
  • the allowed cell information includes cell identification information, such as the index of the cell, the load or interference of the cell, and other factors affecting the QoS requirements of the service. Therefore, the transmission parameters may include the information of the allowed cell.
  • the sidelink data corresponding to the service information can be transmitted in one or more cells. Cells allowed for data corresponding to different service information may be the same or different. For example, the cell allowed by data corresponding to service information 1 is cell 1, the cell allowed by data corresponding to service information 2 is cell 1 and cell 2, and the cell allowed by data corresponding to service information 3 is cell 2.
  • the allowed frequency point may be a center frequency point of the frequency band, and the information of the allowed frequency point may include identification information of the frequency point, and optionally, may further include a frequency value of the frequency point or a frequency range of the frequency point.
  • a center frequency point can be deployed in multiple cells. The higher the frequency, the faster the channel fading, and the lower the reliability. For services with high reliability requirements, try to choose a lower frequency band.
  • the frequency points allowed by the data corresponding to the service information may be one or more.
  • the frequency points allowed by the data corresponding to the service information 1 are f1
  • the frequency points allowed by the data corresponding to the service information 2 are f1 and f2
  • the frequency points allowed by the service information 3 are corresponding.
  • the allowed frequency of the data is f3.
  • Minimum block error rate (block error rate, BER) information For example, BRE is the percentage of errored PDUs in all sent PDUs. Block error rate is a long-term statistical average and is an important indicator of network performance and service quality. If the block error rate of the transmission resource is greater than or equal to the minimum block error rate, the transmission resource is allocated to the data packet corresponding to the service information. If the block error rate of the transmission resource is less than the minimum block error rate, the transmission resource does not meet the requirements , The transmission resource is not allocated for the data packet corresponding to the service information.
  • the minimum block error rate of data corresponding to different service information is different. For example, the minimum block error rate of data corresponding to service information 1 is 99%, and the minimum block error rate corresponding to service information 2 is 99.999%.
  • the first type of resource is a resource pre-configured by the network device, and the network device may configure the first type of resource through a radio resource control (radio resource control (RRC) message).
  • RRC radio resource control
  • the first type of resource is used for sidelink transmission and is based on LTE. Mode 4 in V2X uses this first type of resource for data transmission.
  • the information of the first type of resource includes the location of the time domain resource and the location of the frequency domain resource.
  • the first type of resources can be shared by multiple users, network devices can broadcast the information of the first type of resources through system information, and all terminal devices in the cell can receive the information of the first type of resources. For services with high reliability requirements, it is not suitable for sidelink transmission on the first type of resources.
  • the first type of resources permitted by data corresponding to different service information may be the same or different.
  • the reliability of PPPR1 is higher than the reliability of PPPR2, so the data corresponding to PPPR1 is not allowed to use the first type of resources.
  • the data corresponding to PPPR2 allows the use of the first type of resources.
  • the second type of resource is a semi-persistent scheduling (SPS) resource or a dynamic scheduling resource.
  • SPS resource is a resource allocated by a network device through an RRC message and a downlink control information (DCI) message.
  • Scheduling resources are resources allocated by network equipment through DCI.
  • This second type of resource is used for sidelink transmission, and Mode 3 in V2X based on LTE uses this second type of resource for data transmission.
  • the RRC message indicates the time domain resource location, such as the period and start time location
  • the DCI indicates the frequency domain resource location.
  • the second resource allowed by data corresponding to different service information may be the same or different.
  • the data corresponding to PPPP1 allows the use of the first resource
  • the data corresponding to PPPP2 allows the use of the second resource.
  • the first resource and The second resource is a second type of resource.
  • the second type of resources includes two types: type 1 and type 2.
  • type 1 is the second type of resources in which the second type of resources are shared with the first type of resources
  • type 2 is the absence of the second type of resources and the second type of resources.
  • the first type of resources share the second type of resources.
  • the allowed information of the second type of resource is indication information for indicating that the use of the resource corresponding to type 1 is allowed.
  • the information of the allowed second type of resources is indication information for indicating that the use of the resource corresponding to type 2 is allowed.
  • the allowed information of the second type of resources includes instruction information indicating that the use of the resource corresponding to type 1 is allowed and / or the information indicating the permission to use the resource corresponding to type 2 Instructions.
  • MCS modulation code scheme
  • the information of the MCS table may be identification information of the MCS table, such as an index of the MCS table, and the network device may configure a correspondence relationship between the MCS table and a parameter that affects a transmission rate on the terminal device in advance.
  • An MCS table includes at least one MCS index, and each MCS index corresponds to a set of parameters that affect the transmission rate.
  • the parameters that affect the transmission rate can be a modulation rule and a transport block size (TBS). .
  • TBS transport block size
  • the network device may configure at least one MCS table for the terminal device through the RRC message, or store at least one MCS table on the terminal device in advance according to the protocol.
  • the network device allocates a sidelink resource, it will indicate the allocated sidelink Which of the at least one MCS table is used by the resource.
  • the service data transmitted by different air interfaces is different. Different air interfaces can refer to any one or several of the following parameters or information with different information.
  • the following parameters can be the network equipment through RRC messages.
  • the configuration for the terminal device may also be pre-stored on the terminal device according to the protocol.
  • Waveform parameters are parameters that can indicate or determine a waveform.
  • the waveform parameter may include any one or any of the following parameters:
  • A6 Waveform parameters used in generalized frequency division multi-plex (GFDM) technology.
  • the modulation mode may include any one or several of the following modes:
  • PSK Phase shift keying
  • Quadrature amplitude modulation (QAM) modulation
  • MSK Minimum frequency shift keying
  • the bandwidth configuration may refer to the width of the frequency domain resources required by the air interface.
  • the bandwidth configuration corresponding to the broadband transmission service may refer to the minimum frequency domain resource width required by the air interface, The minimum number of subcarriers required for the air interface.
  • the bandwidth configuration corresponding to narrowband transmission services it can refer to the maximum frequency domain resource width required for the air interface, or the maximum number of subcarriers required for the air interface.
  • the configuration parameters of the radio frame include any one or several of the following parameters:
  • Duplex mode for example, can be divided into full duplex, half duplex (including half-duplex uplink and downlink ratio), or flexible duplex.
  • the duplex mode can be The fixing can also be flexibly changed, and this application is not particularly limited;
  • Transmission time interval (TTI) length For example, in some air interfaces, the transmission time interval can be a fixed value or can be flexibly changed, which is not particularly limited in this application.
  • the resource multiplexing manner may include any one or any of the following manners:
  • Frequency division multiplexing for example, divides the total bandwidth used for a transmission channel into several sub-bands (or sub-channels), and each sub-channel transmits one channel of signals. Frequency division multiplexing requires that the total frequency width is greater than the sum of the frequencies of the sub-channels. At the same time, in order to ensure that the signals transmitted in the sub-channels do not interfere with each other, an isolation band should be set up between the sub-channels. Do not interfere.
  • Time division multiplexing exemplary, the use of the same physical connection to transmit different signals at different times can also achieve the purpose of multiplexing.
  • Time division multiplexing uses time as a parameter for signal division, so it is necessary to make the signals on the time axis not overlap each other.
  • Time division multiplexing is to divide the time provided for the entire channel transmission into several time slices (referred to as time slots), and allocate these time slots to each signal source for use.
  • Space division multiplexing allows the same frequency band to be reused in different spaces.
  • the basic technology for achieving spatial division is to use adaptive array antennas. Different beams are formed in different user directions.
  • different users can be distinguished by spatial division, each beam can provide a unique channel without interference from other users, and different data of the same user can be distinguished by spatial division. To distinguish the same data of the same user, for higher gain.
  • Code division multiplexing is an example of a multiplexing method that distinguishes each original signal by different codes.
  • the code division multiplexing method may be CDMA.
  • Frequency division multiple access frequency division multiple access (FDMA), time division multiple access (time division multiple access (TDMA) and synchronous code division multiple access (SCDMA), etc.).
  • the channel configuration mode may refer to time-frequency resources, code domain resources, or space domain resources (such as designated beams) corresponding to each channel.
  • the channels used for wireless communication may include at least one of the following channels or a combination of multiple channels:
  • a control channel is used to transmit control information.
  • it may include an uplink control channel and a downlink control channel.
  • a data channel is used to transmit data.
  • it may include an uplink data channel and a downlink data channel.
  • Coding is a transformation of source symbols for the purpose of improving communication effectiveness, or a transformation of source symbols in order to reduce or eliminate source redundancy.
  • the source symbol sequence is transformed into the shortest codeword sequence, so that the average amount of information carried by each symbol of the latter is the largest, and the original symbol sequence can be restored without distortion.
  • the encoding modes can be listed as follows:
  • the protocol stack refers to the sum of the protocols in each layer of the network, and its image reflects the process of file transfer in a network: from the upper layer protocol to the lower layer protocol, and then from the lower layer protocol to the upper layer protocol.
  • the protocol stack used for wireless communication may include at least one of the following protocol layers or a combination of multiple protocol layers, and each layer of the protocol may have multiple protocol entities:
  • Radio Link Control (RLC) layer I2. Radio Link Control (RLC) layer
  • the multiple-access method used in wireless communication may include any one or any of the following:
  • the service data transmitted by different air interfaces is different. For example, data corresponding to service information 1 is transmitted through the LTE air interface, data corresponding to service information 2 is transmitted through the NR air interface, and data corresponding to service information 3 is transmitted through the LTE air interface and the NR air interface. .
  • the first correspondence relationship is stored in the terminal device in advance, and the first correspondence relationship may be specified by a protocol.
  • the first correspondence relationship is sent by the network device to the terminal device, that is, the first correspondence relationship is configured by the network device, and the network device may broadcast the first correspondence relationship to the terminal device through a system message, or may The first correspondence relationship is sent to the terminal device.
  • Step S102 The terminal device acquires a transmission resource and a second transmission parameter corresponding to the transmission resource.
  • the transmission resource is a resource used for V2X communication, such as a sidelink resource.
  • the second transmission parameter has an association relationship with the first transmission parameter, or the second transmission parameter belongs to the first transmission parameter.
  • the second transmission parameter is the SCS information of the transmission resource, or the second transmission parameter is one or more parameters associated with the SCS of the transmission resource.
  • the parameters associated with the SCS of the transmission resource can determine the SCS of the transmission resource.
  • the allowed SCS in the first transmission parameter corresponding to the service information is 15Khz, 20Khz, and 30Khz
  • the second transmission parameter may be any one of 15Khz, 20Khz, and 30Khz.
  • the second transmission parameter is the duration of the PSCCH of the transmission resource, and the duration of the PSCCH of the transmission resource is less than or equal to the maximum PSSCH duration, or the second transmission parameter is One or more parameters associated with the length of the PSCCH of the transmission resource.
  • the length of the PSSCH of the transmission resource can be determined according to the parameters associated with the length of the PSCCH of the transmission resource.
  • the associated parameter can be authorized by the sidelink. Assuming that the maximum PSSCH duration corresponding to the service information is T1 milliseconds (ms), the value of the PSCCH duration T2 ms of the transmission resource is less than or equal to T1.
  • the second transmission parameter is the information of the cell to which the transmission resource belongs, where the cell to which the transmission resource belongs is a subset of the cell allowed in the first transmission parameter, or
  • the second transmission parameter is one or more parameters associated with the information of the cell to which the transmission resource belongs, and the cell to which the transmission resource belongs can be determined according to the parameter associated with the information of the cell to which the transmission resource belongs.
  • the allowed cells in the first transmission parameter corresponding to the service information are: cell 1 and cell 2
  • the second transmission parameter may be identification information of cell 1 or identification information of cell 2, where the identification information of the cell may be a cell index .
  • the second transmission parameter is the frequency point information of the transmission resource
  • the frequency point of the transmission resource included in the second transmission parameter is the allowed frequency point in the first transmission parameter.
  • a subset of points, or the second transmission parameter is one or more parameters associated with the frequency point of the transmission resource, and the frequency point of the transmission resource may be determined according to the parameter associated with the frequency point of the transmission resource.
  • the second transmission parameter may be identification information of f1 or identification information of f2.
  • the second transmission parameter is the information of the block error rate of the transmission resource, and the block error rate of the transmission resource is less than or equal to the minimum block error rate, or the second transmission
  • the parameter is one or more parameters associated with the block error rate of the transmission resource, and the block error rate of the transmission resource may be determined according to the parameter associated with the block error rate of the transmission resource. Assuming that the minimum block error rate corresponding to the service information is 5%, the block error rate of the transmission resources included in the second transmission parameter is 4.5% or 4%, etc.
  • the second transmission parameter is the information of the first type of resource used by the transmission resource, and the first type of resource used by the transmission resource is allowed in the first transmission parameter.
  • the first type of resource is the information of the first type of resource used by the transmission resource.
  • the second transmission parameter is the information of the second type of resource used by the transmission resource
  • the second type of resource used by the transmission resource is the allowed in the first transmission parameter Second type of resources.
  • the second type of resource is a resource corresponding to type 1
  • the second type of resource used by the transmission resource is a resource corresponding to type 2.
  • the second type of resources includes resources corresponding to type 1 and type 2
  • the second type of resources used by the transmission resources are resources corresponding to type 1 and / or resources corresponding to type 2.
  • the second transmission parameter is the information of the MCS table used by the transmission resource, and the MCS table used by the transmission resource is a subset of the allowed MCS table in the first transmission parameter.
  • the second transmission parameter is one or more parameters associated with the MCS table used by the transmission resource, and the MCS table used by the transmission resource may be determined according to the parameter associated with the MCS table used by the transmission resource. It is assumed that the allowed MCS tables in the first transmission parameter corresponding to the service information are: MCS table 1 and MCS table 2, then the second transmission parameter includes any one or more of the identifier of MCS table 1 and the identifier of MCS table 2.
  • the second transmission parameter is the information of the air interface used by the transmission resource, and the air interface used by the transmission resource is a subset of the allowed air interface in the first transmission parameter, or the second
  • the transmission parameter is one or more parameters associated with the air interface used by the transmission resource, and the air interface used by the transmission resource can be determined according to the parameters associated with the air interface used by the transmission resource.
  • the allowed air interface in the first transmission parameter corresponding to the service information includes: air interface 1, air interface 2 and air interface 3.
  • the second transmission parameter includes any one or more of the identification of air interface 1, the identification of air interface 2, and the identification of air interface 3. Each.
  • the first transmission parameter uses the first transmission parameter to include a single parameter as an example.
  • the first transmission parameter may also include multiple parameters.
  • the second transmission parameter is also multiple.
  • the parameter type and the first transmission parameter included in the second transmission parameter are also different.
  • a transmission parameter includes the same type, and the second transmission parameter has the same value as a parameter of the same type in the first transmission parameter, or the value of the second transmission parameter is a subset of the value of the first transmission parameter.
  • the transmission resource may be a first type resource or a second type resource, and the second type resource includes a dynamic scheduling resource or an SPS resource.
  • the network device may control the physical downlink.
  • a channel Physical Downlink, Shared Channel, PDCCH
  • PDCCH Physical Downlink, Shared Channel
  • the network device may indicate a time domain resource position through an RRC message, and indicate a frequency domain resource position through a DCI.
  • the transmission resource is a first-type resource
  • the network device may carry the information of the first-type resource in an RRC message or a system message.
  • the transmission resources mentioned in the embodiments of the present application refer to resources used for sidelink transmission, rather than resources used for Uu port transmission.
  • the PDCCH can be scrambled through different scrambling codes.
  • the PDCCH used to allocate dynamic resources for sidelink transmission uses V2X-C. -RNTI scrambling, C-RNTI scrambling is used to allocate dynamic scheduling resources for Uu port transmission.
  • different scrambling codes can also be used to distinguish them. For example, when allocating the SPS resources transmitted by the sidelink, V2X-CS-RNTI is used to allocate SPS transmitted by the Uu port CS-RNTI is used for resources.
  • the terminal device may obtain the second transmission parameter corresponding to the transmission resource in the following ways:
  • the terminal device receives the indication information of the second transmission parameter corresponding to the transmission resource sent by the network device, or the terminal device receives the indication information of the second transmission parameter corresponding to the transmission resource sent by the network device,
  • the second transmission parameter corresponding to the transmission resource is determined according to the indication information of the association information of the second transmission parameter corresponding to the transmission resource.
  • the network device indicates directly in an indication (DCI or RRC) of allocating sidelink transmission resources.
  • the terminal device determines the second transmission parameter of the sidelink transmission resource by receiving the transmission parameter of the DCI of the Uu port, such as the mode assigned by DCI and the sidelink grant.
  • the terminal device determines the corresponding sidelink grant by receiving the SCS used by DCI. SCS.
  • Method (2) The terminal device determines, according to the service information of the data packet to be transmitted and the first correspondence, a transmission parameter that satisfies the service information of the data packet to be transmitted as a second transmission parameter corresponding to the transmission resource.
  • the terminal device determines a data packet with the highest priority from the data packet to be transmitted according to the service information of the data packet to be transmitted that currently arrives.
  • the data packet with the highest priority includes any one of the following data: The data packet corresponding to the highest priority PPPP, the data packet corresponding to the highest reliability PPPR, the data packet corresponding to the highest priority service identifier, or the data packet corresponding to the highest priority QFI. Then, according to the first correspondence between the service information and the first transmission parameter and the service information of the highest priority data packet, a first transmission parameter corresponding to the service information of the highest priority data packet is determined, and the priority is determined from the priority. The first transmission parameter corresponding to the service information of the highest data packet determines a second transmission parameter corresponding to the transmission resource.
  • the second transmission parameter corresponding to the transmission resource includes any one or more of the following parameters: the information of the SCS of the transmission resource, the length of the PSSCH of the transmission resource, the information of the cell to which the transmission resource belongs, and the frequency of the transmission resource. Point information, block error rate information of transmission resources, information of first type resources used by transmission resources, information of second type resources used by transmission resources, information of MCS table used by transmission resources, and information of air interfaces used by transmission resources . Some or all of the second transmission parameters may be determined in the following manner:
  • the first transmission parameter corresponding to the service information of the highest priority data packet includes: allowed cells / allowed frequency points, determine a cell / frequency that meets QoS requirements from the allowed cells / allowed frequency points.
  • Point as the cell / frequency point of the transmission resource, where the service information of the highest priority data packet is any of the following information: the highest priority PPPP, the highest reliability PPPR, the highest priority service identification or The highest priority QFI.
  • the first transmission parameter corresponding to the service information of the data packet with the highest priority includes: allowed SCS, determine an SCS that meets the QoS requirement SCS as the transmission resource from the allowed SCS, where the highest priority SCS
  • the service information of the data packet is any one of the following information: PPPP with the highest priority, PPPR with the highest reliability requirement, identification of the service with the highest priority, or QFI with the highest priority.
  • the first transmission parameter corresponding to the service information of the highest priority data packet includes: an allowed MCS table, determine an MCS table that meets QoS requirements from the allowed MCS table as the MCS table used for transmission resources, where ,
  • the service information of the highest priority data packet is any one of the following information: the highest priority PPPP, the highest reliability PPPR, the highest priority service identifier or the highest priority QFI.
  • the first transmission parameter corresponding to the service information of the data packet with the highest priority includes: the maximum PSSCH duration, determine the length of a PSSCH that meets the QoS requirements as the PSSCH of the transmission resource according to the maximum PSSCH duration, where ,
  • the service information of the highest priority data packet is any one of the following information: the highest priority PPPP, the highest reliability PPPR, the highest priority service identifier or the highest priority QFI.
  • the first transmission parameter corresponding to the service information of the data packet with the highest priority includes the minimum block error rate
  • the service information of the highest data packet is any one of the following information: PPPP with the highest priority, PPPR with the highest reliability requirement, identification of the service with the highest priority, or QFI with the highest priority.
  • the first transmission parameter corresponding to the service information of the data packet with the highest priority includes the information of the air interface, determine an air interface that meets the QoS requirements as the air interface used for transmission resources, where the data packet with the highest priority is
  • the service information is any one of the following information: PPPP with the highest priority, PPPR with the highest reliability requirement, identification of the service with the highest priority, or QFI with the highest priority.
  • Method (1) and method (2) are applicable to a terminal device in coverage of a network device.
  • the terminal device can receive a cellular network signal sent by the network device.
  • the terminal device determines that the pre-configured transmission parameter is the second transmission parameter corresponding to the transmission resource.
  • the pre-configured transmission parameters may be stipulated by the protocol and stored in the terminal device in advance, or may be allocated and sent to the terminal device by the control node of the side transmission, where the terminal device is not in the coverage of the network device means the terminal The device cannot receive the cellular signal.
  • Step S103 The terminal device allocates transmission resources for the data packets corresponding to the service information according to the first correspondence and the second transmission parameters corresponding to the transmission resources.
  • the data packet corresponding to the service information is the data packet currently arriving at the sidelink protocol stack.
  • the service information of the currently arriving data packet may be determined first, for example, determining the PPPP, PPPR, service identifier, or QFI corresponding to the currently arriving data packet. , And then, according to the service information corresponding to the currently arrived data packet and the first correspondence, determine the first transmission parameter corresponding to the currently arrived data packet, and according to the first transmission parameter corresponding to the currently arrived data packet and the transmission resource
  • the second transmission parameter determines a data packet that can be transmitted on the transmission resource, and the first transmission parameter of the data packet that can be transmitted on the transmission resource meets the second transmission parameter corresponding to the transmission resource.
  • the currently arriving data packet includes a data packet corresponding to the service information 1 and a data packet corresponding to the service information 2.
  • the SCS allowed by service information 1 is SCS1 and SCS2
  • the SCS allowed by service information 2 is SCS2
  • the transmission resource can only transmit SCS1 data packets, and the transmission resource is allocated to the service information 1 corresponding data pack.
  • the length of the PSSCH corresponding to the transmission resource is T1
  • the currently arriving data packet includes the data packet corresponding to the service information 1 and the data corresponding to the service information 2.
  • the maximum PSSCH duration corresponding to service information 1 is T2
  • the maximum PSSCH duration corresponding to service information 2 is T3, T1 is less than T2, and T1 is greater than T3. Therefore, only transmission on transmission resources is allowed.
  • the data packet corresponding to the service information 1 is allocated to the data packet corresponding to the service information 1.
  • the information of the cell to which the transmission resource belongs is the identity of the cell 1, and the currently arriving data packet includes the data packet and service corresponding to the service information 1.
  • the cells allowed by service information 1 are cell 1 and cell 2
  • the cells allowed by service information 2 are cell 1 and cell 3. Therefore, service information can be transmitted on the transmission resources.
  • the data packet corresponding to 1 and the data packet corresponding to service information 2 then the transmission resource is allocated to the data packet corresponding to service information 1 and / or the data packet corresponding to service information 2. How many resources are allocated to the data corresponding to each type of service information No restrictions.
  • the information of the frequency point of the transmission resource is the identifier of f1
  • the currently arriving data packet includes the data packet and service information corresponding to the service information 1.
  • the frequency point allowed by service information 1 is f2
  • the frequency point allowed by service information 2 is f1 and f2. Therefore, only data corresponding to service information 2 can be transmitted on the transmission resource.
  • Packet the transmission resource is allocated to a data packet corresponding to the service information 2.
  • the transmission resource can transmit the data corresponding to service information 1. If the data packet corresponds to the data packet corresponding to the service information 2, the transmission resource is allocated to the data packet corresponding to the service information 1 and / or the data packet corresponding to the service information 2. How much resource is allocated to the data corresponding to each type of service information, do not do limited.
  • the transmission resource can be When transmitting a data packet corresponding to service information 1, the transmission resource is allocated to a data packet corresponding to service information 1.
  • the manner of allocating the transmission resource is similar to that of the first type of resource, and is not repeated here.
  • the currently arriving data packet includes the data packet and service information corresponding to the service information 1.
  • the MCS table corresponding to service information 1 is MCS table 2
  • the MCS table corresponding to service information 2 is MCS table 1. Therefore, only the service information 2 can be transmitted on the transmission resource.
  • Data packet, the transmission resource is allocated to a data packet corresponding to the service information 2.
  • the second transmission parameter corresponding to the transmission resource is the information of the air interface used by the transmission resource as an example
  • the air interface used by the transmission resource is the air interface 1.
  • the currently arriving data packet includes the data packet corresponding to the service information 1 and the service information 2 corresponding.
  • the air interfaces corresponding to service information 1 are air interface 1 and air interface 2
  • the air interfaces corresponding to service information 1 are air interface 1 and air interface 3. Therefore, the data corresponding to service information 1 can be transmitted on the transmission resource.
  • Packet and a data packet corresponding to service information 2 the transmission resource is allocated to a data packet corresponding to service information 1 and / or a data packet corresponding to service information 2.
  • the amount of data allocated to each type of service information is not limited. .
  • the terminal device acquires the first correspondence between the service information and the first transmission parameter, and the service information includes any one or more of the following information: service identifier, service QFI, service PPPP, or service PPPR
  • the first transmission parameter includes any one or more of the following parameters: allowed SCS information, maximum PSSCH duration, allowed cell information, allowed frequency information, minimum block error rate information, allowed first Information of a type of resource, information of a permitted type 2 resource, information of a permitted MCS table, and information of a permitted air interface; obtain transmission resources and second transmission parameters corresponding to the transmission resources, and correspond to the transmission resources according to the first correspondence
  • the second transmission parameter is to allocate transmission resources for a data packet corresponding to the service information.
  • the method can select different transmission parameters for data packets corresponding to different services, data packets corresponding to different PPPP / PPPRs, and data packets corresponding to different QFIs according to the service information of the data packets, so that the transmission parameters can meet business requirements.
  • the second embodiment of the present application provides a method for acquiring transmission resources.
  • the transmission resources acquired in this embodiment are the first type of resources.
  • the method in this embodiment can be used alone or in combination with the method in Embodiment 1.
  • the embodiment Terminal equipment can use the method of this embodiment to obtain transmission resources.
  • FIG. 3 is a flowchart of a method for obtaining transmission resources provided in Embodiment 2 of the present application. As shown in FIG. 3, the method provided by this embodiment includes the following steps. :
  • Step S201 The terminal device receives the second correspondence between the service information sent by the network device and the resource pool / third transmission parameter on the carrier.
  • Network devices can configure multiple resource pools on a carrier. Multiple resource pools on a carrier correspond to multiple zone IDs. A zone ID is used to identify an area. Each area is associated with at least one resource pool. In the prior art, in this embodiment, each region is associated with multiple resource pools. The transmission parameters corresponding to multiple resource pools associated with each region are different, and the resource pools associated with multiple regions may or may not overlap. The transmission parameters corresponding to the region-associated resource pool may be the same or different.
  • Figure 4 is a schematic diagram of the correspondence between resource pools, area identifiers, and transmission parameters on the carrier.
  • the carrier includes a total of N resource pools.
  • the value of N can be 8, resource pool 0, and resource pool 1.
  • the first group of transmission parameters, resource pool 2 corresponds to the second group of transmission parameters, and resource pool 3 corresponds to the third group of transmission parameters, where each group of transmission parameters can be a numerology (parameter set), and the numerology can include SCS, cyclic prefix, TTI Wait for one or more.
  • numerology can include SCS, cyclic prefix, TTI Wait for one or more.
  • the network device may configure a second correspondence between the service information and the resource pool on the carrier.
  • the service information may be PPPP, PPPR, or service identifier, or other parameters that can reflect QoS, such as QFI.
  • a network device can configure a resource pool associated with area identifier 1 corresponding to PPPP1 and a resource pool associated with area identifier 2 corresponding to PPPP2.
  • the transmission parameters corresponding to each resource pool are known.
  • the second correspondence relationship of the resource pools on the carrier and the transmission parameters corresponding to each resource pool on the carrier can be obtained from the resource pool corresponding to the service information and the third transmission parameter.
  • the network device may also configure a second correspondence between the service information and the third transmission parameter, and the transmission parameter corresponding to each resource pool on the carrier is known, and the terminal device according to the second correspondence between the service information and the third transmission parameter And the transmission parameters corresponding to the resource pool, the resource pool corresponding to the service information can be obtained.
  • the third transmission parameter is associated with the first transmission parameter, or the third transmission parameter belongs to the first transmission parameter.
  • Step S202 The terminal device determines a target area according to the geographic location where the terminal device is located.
  • the terminal device calculates the area identifier according to the following formula:
  • Zone_id y1 * Nx + x1.
  • x1 is the length of the geographic area
  • y1 is the width of the geographic area
  • Nx is the total number of areas related to longitude
  • Ny is the total number of areas related to latitude.
  • Step S203 The terminal device determines a plurality of resource pools associated with the target area.
  • the terminal device determines multiple resource pools associated with the target area according to the target area identifier.
  • Step S204 The terminal device determines a resource pool to be used for the data packet to be transmitted from a plurality of resource pools associated with the target area according to the service information of the data packet to be transmitted and the second correspondence relationship.
  • the terminal device knows the service information of the data packet to be transmitted, and then according to the service information of the data packet to be transmitted and the second correspondence relationship, Determine the service information corresponding to the multiple resource pools associated with the target area. Based on the business information corresponding to the multiple resource pools associated with the target area and the service information of the data packets to be transmitted, select a resource from the multiple resource pools associated with the target area. The resource pool of the service information of the data packet to be transmitted is used as the resource pool used by the data packet to be transmitted.
  • a resource pool associated with PPPR is used as a resource pool for data packets to be transmitted.
  • the terminal device knows the service information of the data packet to be transmitted, and then determines the waiting information based on the service information of the data packet to be transmitted and the second correspondence relationship.
  • the transmission parameters used for the transmitted data packets, and the transmission parameters used by each resource pool on the carrier are known, then according to the transmission parameters used by the resource pool, determine from the multiple resource pools associated with the target area that the resources to be transmitted are satisfied.
  • the resource pool of the transmission parameters used by the data packet is the resource pool used by the data packet to be transmitted.
  • Step S205 The terminal device selects a transmission resource from a resource pool used by the data packet to be transmitted.
  • the resource pool used by the terminal device for the data packet to be transmitted may be one or more.
  • the terminal device may use one of the following criteria to determine a resource pool. :
  • a resource pool with the least load is selected from a plurality of resource pools used by the data packet, and a transmission resource is selected from the resource pool with the least load.
  • the load of the resource pool can be measured by the Channel Busy Ratio (CBR), and the terminal device can measure the CBR of each resource pool separately.
  • CBR Channel Busy Ratio
  • the network device sets the correspondence between service information and CBR. For example, it is specified that data corresponding to a certain PPPR / PPPP / service identifier can only be transmitted on a resource pool whose CBR is not greater than the corresponding CBR threshold, and the terminal device is based on the correspondence. , Select a resource pool that meets the CBR threshold requirements from multiple resource pools used by the packet.
  • the third embodiment of the present application provides a method for acquiring transmission resources.
  • the transmission resources acquired in this embodiment are first-type resources.
  • the method in this embodiment can be used alone or in combination with the method in Embodiment 1.
  • the embodiment Terminal equipment can use the method of this embodiment to obtain transmission resources.
  • FIG. 5 is a flowchart of a method for obtaining transmission resources provided in Embodiment 3 of the present application. As shown in FIG. 5, the method provided by this embodiment includes the following steps. :
  • Step S301 The terminal device receives a third correspondence between the service information and the subchannel / fourth transmission parameter sent by the network device.
  • a network device can configure multiple resource pools on a carrier.
  • Each resource pool on a carrier is associated with an area. Different areas are distinguished by area identifiers.
  • the network device in this embodiment divides each resource pool into multiple Subchannels, each subchannel is composed of multiple physical layer resource blocks, and the transmission parameters used for each subchannel are configured, wherein the transmission parameters corresponding to multiple subchannels included in each resource pool are different, and The transmission parameters corresponding to the channels may be the same or different.
  • the fourth transmission parameter is associated with the first transmission parameter, or the fourth transmission parameter belongs to the first transmission parameter.
  • Figure 6 is a schematic diagram of the correspondence between resource pools, subchannels, and transmission parameters on the carrier.
  • the carrier includes a total of N resource pools, each resource pool corresponds to an area identifier, and each resource pool includes multiple Subchannels, taking resource pool 1 as an example.
  • the area associated with resource pool 1 is the area corresponding to area identifier 0.
  • Resource pool 1 includes three subchannels: subchannel 1, subchannel 2, and subchannel 3.
  • Subchannel 1 corresponds to the first group.
  • Subchannel 2 corresponds to the second group of transmission parameters
  • subchannel 3 corresponds to the third group of transmission parameters.
  • Each group of transmission parameters can be a numerology.
  • the network device may configure a third correspondence between service information and subchannels.
  • the service information may be PPPP, PPPR, or service identifier, or other parameters that can reflect QoS.
  • a network device can be configured with PPPP1 corresponding to subchannel 1, and PPPP2 corresponding to subchannel 2.
  • the transmission parameters corresponding to each subchannel are known, and the third correspondence between the terminal device and the subchannel according to the service information, and the subchannel
  • the transmission parameter corresponding to the channel can obtain the transmission parameter corresponding to the service information.
  • the network device may also configure a third correspondence between the service information and the fourth transmission parameter, and the transmission parameter corresponding to each subchannel in the resource pool is known, and the terminal device according to the third correspondence between the service information and the fourth transmission parameter And the transmission parameters corresponding to the subchannels in the resource pool, the resource pool corresponding to the service information can be obtained.
  • Step S302 The terminal device determines a target area according to the geographical location where the terminal device is located.
  • step S202 For the specific implementation of this step, refer to the related description of step S202 in Embodiment 2, and details are not described herein again.
  • Step S303 The terminal device determines a resource pool associated with the target area, and the resource pool associated with the target area includes multiple subchannels.
  • the target area is associated with a resource pool, and the resource pool includes multiple subchannels.
  • Step S304 The terminal device determines the subchannel set used by the data packet to be transmitted from the resource pool associated with the target area according to the service information of the data packet to be transmitted and the third correspondence relationship.
  • the terminal device knows the service information of the data packet to be transmitted, and then determines the target area according to the service information of the data packet to be transmitted and the third correspondence.
  • the service information corresponding to the multiple subchannels included in the associated resource pool is based on the service information corresponding to the multiple subchannels included in the resource pool associated with the target area and the service information of the data packets to be transmitted.
  • a sub-channel that satisfies service information of a data packet to be transmitted is selected from the multiple word channels as a sub-channel set used by the data packet to be transmitted.
  • the terminal device knows the service information of the data packet to be transmitted, and then determines the waiting information based on the service information of the data packet to be transmitted and the third correspondence relationship.
  • the transmission parameters used for the transmitted data packets, and the transmission parameters corresponding to the multiple subchannels included in the resource pool associated with the target area are known.
  • the transmission parameters corresponding to the multiple subchannels included in the resource pool associated with the target area Among the multiple subchannels included in the region-associated resource pool, a subchannel determined to satisfy a transmission parameter used by a data packet to be transmitted is used as a subchannel set used by the data packet to be transmitted.
  • Step S305 The terminal device selects a transmission resource from a set of subchannels used by the data packet to be transmitted.
  • the corresponding relationship between the resource pool and the region may not be configured, and the sub-channels of each resource pool included on the carrier may be uniformly planned. Accordingly, the above steps S302 and S303 need not be performed.
  • the terminal device determines, according to the service information of the data packet to be transmitted and the third correspondence, the sub-channel set used by the data packet to be transmitted from the sub-channels included in the carrier, and the sub-channel used by the data packet to be transmitted.
  • the channel set may include one or more sub-channels, and the sub-channels in the sub-channel set may belong to one resource pool or multiple resource pools.
  • the terminal device may use any of the following criteria to determine a sub-channel:
  • a subchannel with the smallest load is selected from a plurality of subchannels used by the data packet, and a transmission resource is selected from the subchannel with the smallest load.
  • the sub-channel load can be measured by CBR.
  • the terminal device can measure the CBR of each sub-channel separately, or if the CBR in a resource pool is measured in units of a resource pool, the CBR of the sub-channel included in the resource pool is the same.
  • the network device sets the correspondence between service information and CBR. For example, the data corresponding to a specified PPPR / PPPP / service identifier can only be transmitted on a subchannel whose CBR is not greater than the corresponding CBR threshold. Relationship, from the multiple subchannels used in the data packet, select a subchannel that meets the CBR threshold requirements.
  • BWP multiple broadband part
  • the SCS or frequency of different BWPs is different.
  • BWP1 supports service 1 and BWP2 supports service 2. If only the data of service 1 arrives at the moment, the activated BWP switches to BWP1; if only the data of service 2 arrives at the moment, the activated BWP switches to BWP2.
  • the bandwidth of BWP1 is large and the bandwidth of BWP2 is small. If a large amount of data currently arrives, the activated BWP switches to BWP1; if only a small amount of data currently arrives, the activated BWP switches to BWP2.
  • a BWP activation timer (bwp-inactivitytimer) is introduced in this embodiment.
  • the BWP activation timer is used to control BWP switching, for example, to control the activation of the terminal device BWP after the timeout switches from the current BWP to the default BWP.
  • initial BWP initial BWP
  • the default BWP is the Uu BWP (Uu BWP), which is configured by the network device.
  • the initial BWP is the BWP used by the terminal device for initial access to the cell and also the BWP of the Uu port.
  • FIG. 7 is a signaling flowchart of a BWP handover method provided in Embodiment 4 of the present application. As shown in FIG. 7, the method in this embodiment includes the following steps:
  • Step S401 The network device sends the configuration information of the BWP activation timer to the terminal device.
  • the terminal device receives the configuration information of the BWP activation timer sent by the network device, and completes the configuration of the BWP activation timer.
  • the configuration information of the BWP activation timer includes at least one of the following: Uu BWP activation timer timing duration, start condition, shutdown Conditions, etc.
  • Step S402 The network device sends downlink control signaling for allocating sidelink resources to the terminal device.
  • the network device sends the downlink control signaling to the terminal device through the activated UuBWP of the serving cell.
  • the downlink control signaling uses sidelink C-RNTI (for sidelink resources for dynamic scheduling) or sidelink CS-RNTI (for half The statically scheduled sidelink resources) are scrambled for scrambling.
  • the downlink control signaling may include a UuBWP handover command, where the handover command includes a UuBWP identity, and the UuBWP identity is used to instruct the terminal device to switch to the UuBWP corresponding to the UuBWP identity.
  • a network device configures three BWPs for a serving cell of a terminal device: BWP1, BWP2, and BWP3. Among them, at most one BWP is active. Assuming that the currently activated BWP is BWP1, the terminal device only monitors the PDCCH of BWP1.
  • BWP1 receives downlink control signaling.
  • the downlink control signaling includes identification information of BWP2 and sidelink resource allocation instruction information.
  • the terminal device activates BWP and switches from BWP1 to BWP2.
  • BWP2 is activated BWP and only monitors the PDCCH of BWP2.
  • the terminal device may optionally perform the following operations: if there is no ongoing random access procedure associated with the serving cell of the terminal device, or if When the ongoing random access process associated with the serving cell successfully completes receiving the PDCCH scrambled by the C-RNTI, the BWP activation timer associated with the activated DL BWP is started or restarted.
  • Step S403 The terminal device starts or restarts a BWP activation timer associated with the activated BWP.
  • the terminal device determines that the activated BWP is in an activated state.
  • the terminal device may start or restart the BWP activation timer after completing the BWP switching.
  • the terminal device may not start the BWP activation timer.
  • the terminal device may also start or restart the BWP activation timer before switching the BWP, which is not limited in this embodiment.
  • Step S404 After the BWP activation timer expires, the terminal device switches from the activated BWP to the default BWP or the initial BWP.
  • the network device After sending a BWP switch command, the network device also starts or restarts the BWP activation timer. If the default BWP is configured after the BWP activation timer expires, it switches to the BWP. If the default BWP is not configured, it switches to the initial BWP, thereby Ensure that the BWP activated on the network device and the terminal device are consistent.
  • the terminal device receives downlink control signaling for allocating sidelink resources sent by the network device, starts or restarts the BWP activation timer according to the downlink control signaling, and switches from the activated BWP after the BWP activation timer expires. Go to the default BWP or initial BWP. This method makes the activated BWP on the network device and the terminal device consistent even if the BWP switching command is lost.
  • the method in this embodiment may be independently applied in the BWP handover process, or may be combined with the method in Embodiment 1 when the PDCCH is allocated with dynamic scheduling resources, and the Uu and BWP identifiers are carried in the PDCCH, and the terminal device receives After the PDCCH, the BWP is switched according to the BWP identifier carried in the PDCCH.
  • the dynamic scheduling resources mentioned in the embodiments of the present application are resources for side-by-side transmission, not resources for Uu port transmission.
  • the scramble code is used to scramble the PDCCH.
  • the PDCCH that allocates dynamic scheduling resources for lateral transmission is scrambled using V2X-C-RNTI, and the dynamic scheduling resources that are allocated for Uu interface transmission are scrambled using C-RNTI.
  • FIG. 8 is a schematic structural diagram of a V2X communication device provided in Embodiment 5 of the present application.
  • the device may be applied to a terminal device.
  • the device provided in this embodiment includes:
  • a first obtaining module 11 is configured to obtain a first correspondence between service information and a first transmission parameter.
  • the service information includes any one or more of the following information: a service identifier, a single packet priority of a service, PPPP, and a service. Single packet reliability PPPR or quality of service flow identification QFI;
  • a second obtaining module 12 is configured for the terminal device to obtain a transmission resource and a second transmission parameter corresponding to the transmission resource, where the second transmission parameter has an association relationship with the first transmission parameter, or the second The transmission parameter belongs to the first transmission parameter;
  • a resource allocation module 13 is configured for the terminal device to allocate the transmission resource for a data packet corresponding to the service information according to the first correspondence and a second transmission parameter corresponding to the transmission resource.
  • the first transmission parameter includes any one or more of the following parameters: information of allowed subcarrier interval SCS, duration of maximum physical side-line shared channel PSSCH, information of allowed cells, allowed Frequency point information, minimum block error rate information, allowed first-type resource information, allowed second-type resource information, allowed modulation and coding scheme MCS table information, and allowed air interface information, wherein the first One type of resource is a resource pre-configured by a network device, and the second type of resource is a semi-static scheduling resource or a dynamic scheduling resource.
  • the first correspondence relationship is stored in the terminal device in advance.
  • the first correspondence relationship is sent by the network device to the terminal device.
  • the second obtaining module 12 is specifically configured to receive indication information of a second transmission parameter corresponding to the transmission resource sent by the network device. Or receiving the indication information of the association information of the second transmission parameter corresponding to the transmission resource sent by the network device, and determining the correspondence of the transmission resource according to the indication information of the association information of the second transmission parameter corresponding to the transmission resource. Second transmission parameter.
  • the second obtaining module 12 is specifically configured to determine, according to the service information of the data packet to be transmitted and the first correspondence, a transmission parameter that satisfies the service information of the data packet to be transmitted as A second transmission parameter corresponding to the transmission resource.
  • the second obtaining module 12 is specifically configured to: when the terminal device is not within the coverage of the network device, determine a default transmission parameter as a second transmission parameter corresponding to the transmission resource.
  • the second obtaining module 12 is specifically configured to:
  • the second obtaining module 12 is specifically configured to:
  • the carrier includes multiple resource pools, each resource pool includes multiple subchannels, and each resource pool includes multiple subchannels
  • the transmission parameters corresponding to the channels are different, the fourth transmission parameter is associated with the first transmission parameter, or the fourth transmission parameter belongs to the first transmission parameter;
  • the apparatus in this embodiment may be used to execute the method steps performed by the terminal device in Embodiments 1 to 3.
  • the specific implementation manner and the ending effect are similar, and are not described herein again.
  • FIG. 9 is a schematic structural diagram of a V2X communication device provided in Embodiment 6 of the present application.
  • the device in this embodiment is based on the device shown in FIG. 8, and the second obtaining module 12 is specifically configured to: receive the network device.
  • the transmission resource information, the transmission resource is a dynamic scheduling resource, the transmission resource information is carried in a physical downlink control channel PDCCH, and the PDCCH also carries an identifier of a broadband part BWP.
  • the device further includes:
  • a switching module 14 configured to, when the terminal device receives the PDCCH, switch from the current BWP to a BWP corresponding to the BWP identifier according to the BWP identifier;
  • the timer control module 15 is configured to start or restart a BWP activation timer.
  • the BWP activation timer is used to control the terminal device to switch from a current BWP to a default BWP or an initial BWP after the timeout, and the initial BWP is the terminal. BWP used by the device for initial access to the cell.
  • Embodiment 7 of the present application provides a schematic structural diagram of a V2X communication device.
  • the device in this embodiment can be applied to network equipment.
  • the device in this embodiment includes:
  • a sending module configured to send a first correspondence between service information and a first transmission parameter to the terminal device, where the service information includes any one or more of the following information: a service identifier, a single packet priority of a service, PPPP, a service Single packet reliability PPPR or quality of service flow identification QFI, the first transmission parameter includes any one or more of the following parameters: information on the allowed subcarrier interval SCS, the maximum physical sideline shared channel PSSCH duration, Information about allowed cells, information about allowed frequency points, minimum block error rate information, information about allowed first-type resources, information about allowed second-type resources, information about allowed modulation and coding scheme MCS tables, and allowed air interfaces Information, wherein the first type of resource is a resource pre-configured by a network device, and the second type of resource is a semi-static scheduling resource or a dynamic scheduling resource.
  • the service information includes any one or more of the following information: a service identifier, a single packet priority of a service, PPPP, a service Single packet reliability PPPR or
  • the sending module is further configured to:
  • the terminal device Sending a physical downlink control channel PDCCH to the terminal device, where the PDCCH includes information on transmission resources and an identifier of a broadband BWP, and the identifier of the BWP is used to instruct the terminal device to switch to a BWP corresponding to the identifier of the BWP .
  • the sending module is further configured to:
  • the BWP activation timer is used to control the terminal device to switch from the current BWP to the default BWP or the initial BWP after the timeout, the initial BWP is used by the terminal device BWP for initial access.
  • the sending module is further configured to:
  • multiple resource pools on the carrier correspond to multiple area identifiers, and each area is associated with multiple resources Pool, the transmission parameters corresponding to multiple resource pools associated with each region are different, and the resource pools associated with multiple regions do not overlap, the third transmission parameter is associated with the first transmission parameter, or the third transmission parameter Belongs to the first transmission parameter.
  • the sending module is further configured to:
  • the carrier includes multiple resource pools, each resource pool includes multiple subchannels, and each resource pool includes multiple The transmission parameters corresponding to the sub-channels are different, and the fourth transmission parameter is associated with the first transmission parameter, or the fourth transmission parameter belongs to the first transmission parameter.
  • FIG. 10 is a schematic structural diagram of a terminal device provided in Embodiment 8 of the present application.
  • the terminal device provided in this embodiment includes a processor 21, a memory 22, and a transceiver 23.
  • the memory 22 is used for storing Instructions
  • the transceiver 23 is configured to communicate with other devices
  • the processor 21 is configured to execute instructions stored in the memory 22 to enable the terminal device to execute the terminal device as in the first to fourth embodiments of the present application
  • the specific steps and methods of the implementation are similar to the technical effects, and are not repeated here.
  • FIG. 11 is a schematic structural diagram of a network device provided in Embodiment 9 of the present application.
  • the network device provided in this embodiment includes a processor 31, a memory 32, and a transceiver 33. Instructions, the transceiver 33 is configured to communicate with other devices, and the processor 31 is configured to execute the instructions stored in the memory 32 to enable the network device to execute the network device as in the first to fourth embodiments of the present application.
  • the specific steps and methods of the implementation are similar to the technical effects, and are not repeated here.
  • Embodiment 10 of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores instructions, and when the instructions are executed, causes a computer to execute the instructions executed by the terminal device in Embodiments 1 to 4 of this application.
  • the method steps, specific implementation manners and technical effects are similar and will not be repeated here.
  • the eleventh embodiment of the present application provides a computer-readable storage medium.
  • the computer-readable storage medium stores instructions.
  • the instructions When the instructions are executed, the computer is executed by the network device in the first to fourth embodiments of the present application.
  • the method steps, specific implementation methods and technical effects are similar, and are not repeated here.
  • the twelfth embodiment of the present application provides a system on a chip.
  • the system on a chip can be applied to a terminal device.
  • the system on a chip includes: at least one communication interface, at least one processor, at least one memory, the communication interface,
  • the memory and the processor are interconnected through a bus, and the processor executes instructions stored in the memory, so that the terminal device can execute the method steps performed by the terminal device in Embodiments 1 to 4 of the present application, and specific implementation methods and technologies. The effect is similar and will not be repeated here.
  • the thirteenth embodiment of the present application provides a system on a chip.
  • the system on a chip can be applied to a network device.
  • the system on a chip includes: at least one communication interface, at least one processor, at least one memory, the communication interface,
  • the memory and the processor are interconnected through a bus.
  • the processor executes instructions stored in the memory, so that the network device can execute the method steps performed by the network device in Embodiments 1 to 4 of the present application, and specific implementation methods and technologies. The effect is similar and will not be repeated here.
  • the fourteenth embodiment of the present application provides a communication system.
  • the communication system includes a terminal device and a network device.
  • the terminal device is configured to execute the method steps performed by the terminal device in the first to fourth embodiments of the present application.
  • the network device It is configured to execute the method steps performed by the network device in Embodiments 1 to 4 of this application.
  • the processor used in the network device or the terminal device in the embodiment of the present application may be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), or a field programmable gate. Array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute various exemplary logical blocks, modules, and circuits described in connection with the present disclosure.
  • the processor may also be a combination that implements computing functions, such as a combination including one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the bus described in the embodiments of the present application may be an Industry Standard Architecture (ISA) bus, an External Device Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. .
  • ISA Industry Standard Architecture
  • PCI External Device Component
  • EISA Extended Industry Standard Architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like.
  • the bus in the drawings of the present application is not limited to only one bus or one type of bus.
  • the disclosed apparatus and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
  • the above integrated unit may be implemented in the form of hardware, or in the form of hardware plus software functional units.
  • the above integrated unit implemented in the form of a software functional unit may be stored in a computer-readable storage medium.
  • the above software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (English: processor) to execute the various embodiments described in this application. Part of the method.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (English: Read-Only Memory (ROM), RAM), a random access memory (English: Random Access Memory, RAM), magnetic disk or optical disk, etc.

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Abstract

本申请提供一种V2X的通信方法和装置，包括：终端设备获取业务信息与第一传输参数的第一对应关系，该业务信息包括以下信息中的任意一种或多种：业务标识，业务的PPPP，业务的PPPR或QFI，第一传输参数包括以下参数中的任意一种或多种：允许的SCS的信息、最大PSSCH的时长、允许的小区的信息、允许的频点的信息、最小误块率信息、允许的第一类资源的信息、允许的第二类资源的信息、允许的MCS表的信息和允许的空口的信息；获取传输资源以及传输资源对应的第二传输参数，根据第一对应关系和传输资源对应的第二传输参数，为业务信息对应的数据包分配传输资源。所述方法能够根据数据包的业务信息，为不同业务/PPPP/PPPR/QFI对应的数据包选择不同的传输参数，使得传输参数能够满足业务需求。

Description

V2X的通信方法和装置
本申请要求于2018年08月23日提交中国专利局、申请号为2018109688960、申请名称为“V2X的通信方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术，尤其涉及一种V2X的通信方法和装置。
背景技术
车-所有(vehicle to everything；V2X)技术实现了车辆与外界的通信，V2X包括车-道路设施(vehicle to infrastructure；V2I)业务、车-网络(vehicle to network；V2N)业务、车-人(vehicle to pedestrian；V2P)业务、车-车(vehicle to vehicle；V2V)业务。基于长期演进(Long Term Evolution，LTE)的V2X，存在两种空口：Uu和PC5，Uu空口用于终端设备与网络设备之间的通信，PC5空口用于终端与终端之间的侧行(sidelink)通信，上述两个空口都可以用于传输V2X数据。
PC5空口支持两种资源分配模式：模式(mode)3和模式4，模式3中终端设备使用专用资源进行通信，该专用资源只能被一个终端设备使用，网络设备通过无线网络临时标识(radio network temporary identifier，RNTI)为终端设备分配给专用资源。模式4中使用的是竞争资源，该竞争资源能够被多个终端设备共享，网络设备可以通过***消息广播该竞争资源。
随着新业务的出现，新V2X业务对时延和可靠性的要求更高，现有的机制不能有效的满足业务需求。
发明内容
本申请提供一种V2X的通信方法和装置，使得传输参数能够满足不同业务的需求。
本申请第一方面提供一种V2X的通信方法，包括：
终端设备获取业务信息与第一传输参数的第一对应关系，所述业务信息包括以下中的任意一种或多种：业务标识，业务的单个包优先级PPPP，业务的单个包可靠性PPPR或服务质量流标识QFI；
所述终端设备获取传输资源以及所述传输资源对应的第二传输参数，所述第二传输参数与所述第一传输参数具有关联关系，或者，所述第二传输参数属于所述第一传输参数；
所述终端设备根据所述第一对应关系和所述传输资源对应的第二传输参数，为与所述业务信息对应的数据包分配所述传输资源。
在一个示例中，所述第一传输参数包括以下参数中的任意一种或多种：允许的子 载波间隔SCS的信息、最大物理侧行共享信道PSSCH的时长、允许的小区的信息、允许的频点的信息、最小误块率信息、允许的第一类资源的信息、允许的第二类资源的信息、允许的调制编码方案MCS表的信息和允许的空口的信息，其中，所述第一类资源为网络设备预先配置的资源，所述第二类资源为半静态调度资源或动态调度资源。
在另一个示例中，所述第一对应关系预先存储在所述终端设备中；或者，
所述第一对应关系是网络设备发送给所述终端设备的。
在另一个示例中，所述终端设备获取所述传输资源对应的第二传输参数，包括：
所述终端设备接收所述网络设备发送的所述传输资源对应的第二传输参数的指示信息；
或者，所述终端设备接收所述网络设备发送的所述传输资源对应的第二传输参数的关联信息的指示信息，根据所述传输资源对应的第二传输参数的关联信息的指示信息确定所述传输资源对应的第二传输参数。
在另一个示例中，所述终端设备获取所述传输资源对应的第二传输参数，包括：
所述终端设备根据待传输的数据包的业务信息和所述第一对应关系，确定满足所述待传输的数据包的业务信息的传输参数为所述传输资源对应的第二传输参数。
在另一个示例中，所述终端设备获取所述传输资源对应的第二传输参数，包括：
当所述终端设备不处于所述网络设备的覆盖范围内时，所述终端设备确定默认传输参数为所述传输资源对应的第二传输参数。
在另一个示例中，所述终端设备获取所述传输资源包括：
所述终端设备接收所述网络设备发送的所述传输资源的信息；
所述传输资源为动态调度资源，所述传输资源的信息承载在物理下行控制信道PDCCH中，所述PDCCH中还携带宽带部分BWP的标识，所述方法还包括：
当所述终端设备接收到所述PDCCH时，所述终端设备根据所述BWP的标识，从当前BWP切换到所述BWP的标识对应的BWP，并启动或重启BWP激活定时器，所述BWP激活定时器用于在超时后控制所述终端设备从当前BWP切换到默认BWP或者初始BWP，所述初始BWP为所述终端设备用于小区的初始接入的BWP。
在另一个示例中，所述终端设备获取所述传输资源，包括：
所述终端设备接收网络设备发送的所述业务信息与载波上的资源池/第三传输参数的第二对应关系，所述载波上的多个资源池与多个区域标识对应，每个区域关联多个资源池，每个区域关联的多个资源池对应的传输参数不同，且多个区域关联的资源池没有重叠，所述第三传输参数关联所述第一传输参数，或者，所述第三传输参数属于所述第一传输参数；
所述终端设备根据所处的地理位置确定目标区域；
所述终端设备确定所述目标区域关联的多个资源池；
所述终端设备根据待传输的数据包的业务信息和所述第二对应关系，从所述目标区域关联的多个资源池中确定所述待传输的数据包使用的资源池；
所述终端设备从所述待传输的数据包使用的资源池中选择所述传输资源。
在另一个示例中，所述终端设备获取所述传输资源，包括：
所述终端设备接收网络设备发送的所述业务信息与子信道/第四传输参数的第三 对应关系，其中，载波上包括多个资源池，每个资源池包括多个子信道，每个资源池包括的多个子信道对应的传输参数不同，所述第四传输参数关联所述第一传输参数，或者，所述第四传输参数属于所述第一传输参数；
所述终端设备根据待传输的数据包的业务信息和所述第三对应关系，从所述载波包括的子信道中确定所述待传输的数据包使用的子信道集合；
所述终端设备从所述待传输的数据包使用的子信道集合中选择所述传输资源。
本申请第二方面提供一种V2X的通信方法，包括：
网络设备向终端设备发送业务信息与第一传输参数的第一对应关系，所述业务信息包括以下信息中的任意一种或多种：业务标识，业务的单个包优先级PPPP，业务的单个包可靠性PPPR或服务质量流标识QFI，所述第一传输参数包括以下参数中的任意一种或多种：允许的子载波间隔SCS的信息、最大物理侧行共享信道PSSCH的时长、允许的小区的信息、允许的频点的信息、最小误块率信息、允许的第一类资源的信息、允许的第二类资源的信息、允许的调制编码方案MCS表的信息和允许的空口的信息，其中，所述第一类资源为网络设备预先配置的资源，所述第二类资源为半静态调度资源或动态调度资源。
在一个示例中，所述方法还包括：
所述网络设备向所述终端设备发送PDCCH，所述PDCCH中包括传输资源的信息和宽带部分BWP的标识，所述BWP的标识用于指示所述终端设备切换到所述BWP的标识对应的BWP。
在另一个示例中，所述方法还包括：
所述网络设备向所述终端设备发送BWP激活定时器的配置信息，所述BWP激活定时器用于在超时后控制所述终端设备从当前BWP切换到默认BWP或者初始BWP，所述初始BWP为所述终端设备用于初始接入的BWP。
在另一个示例中，所述方法还包括：
所述网络设备向所述终端设备发送所述业务信息与载波上的资源池/第三传输参数的第二对应关系，所述载波上的多个资源池与多个区域标识对应，每个区域关联多个资源池，每个区域关联的多个资源池对应的传输参数不同，且多个区域关联的资源池没有重叠，所述第三传输参数关联所述第一传输参数，或者，所述第三传输参数属于所述第一传输参数。
在另一个示例中，所述方法还包括：
所述网络设备向所述终端设备发送所述业务信息与子信道/第四传输参数的第三对应关系，其中，载波上包括多个资源池，每个资源池包括多个子信道，每个资源池包括的多个子信道对应的传输参数不同，所述第四传输参数关联所述第一传输参数，或者，所述第四传输参数属于所述第一传输参数。
本申请第三方面提供一种V2X的通信装置，包括：
第一获取模块，用于获取业务信息与第一传输参数的第一对应关系，所述业务信息包括以下信息中的任意一种或多种：业务标识，业务的单个包优先级PPPP，业务的单个包可靠性PPPR或服务质量流标识QFI；
第二获取模块，用于所述终端设备获取传输资源以及所述传输资源对应的第二传 输参数，所述第二传输参数与所述第一传输参数具有关联关系，或者，所述第二传输参数属于所述第一传输参数；
资源分配模块，用于所述终端设备根据所述第一对应关系和所述传输资源对应的第二传输参数，为所述业务信息对应的数据包分配所述传输资源。
在一个示例中，所述第一传输参数包括以下参数中的任意一种或多种：允许的子载波间隔SCS的信息、最大物理侧行共享信道PSSCH的时长、允许的小区的信息、允许的频点的信息、最小误块率信息、允许的第一类资源的信息、允许的第二类资源的信息、允许的调制编码方案MCS表的信息和允许的空口的信息，其中，所述第一类资源为网络设备预先配置的资源，所述第二类资源为半静态调度资源或动态调度资源。
在另一个示例中，所述第一对应关系预先存储在所述终端设备中；或者，
所述第一对应关系是网络设备发送给所述终端设备的。
在另一个示例中，所述第二获取模块具体用于：
接收所述网络设备发送的所述传输资源对应的第二传输参数的指示信息；
或者，接收所述网络设备发送的所述传输资源对应的第二传输参数的关联信息的指示信息，根据所述传输资源对应的第二传输参数的关联信息的指示信息确定所述传输资源对应的第二传输参数。
在另一个示例中，所述第二获取模块具体用于：
根据待传输的数据包的业务信息和所述第一对应关系，确定满足所述待传输的数据包的业务信息的传输参数为所述传输资源对应的第二传输参数。
在另一个示例中，所述第二获取模块具体用于：
当所述终端设备不处于所述网络设备的覆盖范围内时，确定默认传输参数为所述传输资源对应的第二传输参数。
在另一个示例中，所述第二获取模块具体用于：
接收所述网络设备发送的所述传输资源的信息；
所述传输资源为动态调度资源，所述传输资源的信息承载在物理下行控制信道PDCCH中，所述PDCCH中还携带宽带部分BWP的标识；
所述装置还包括：
切换模块，用于当所述终端设备接收到所述PDCCH时，根据所述BWP的标识，从当前BWP切换到所述BWP的标识对应的BWP；
定时器控制模块，用于启动或重启BWP激活定时器，所述BWP激活定时器用于在超时后控制所述终端设备从当前BWP切换到默认BWP或者初始BWP，所述初始BWP为所述终端设备用于小区的初始接入的BWP。
在另一个示例中，所述第二获取模块具体用于：
接收网络设备发送的所述业务信息与载波上的资源池/第三传输参数的第二对应关系，所述载波上的多个资源池与多个区域标识对应，每个区域关联多个资源池，每个区域关联的多个资源池对应的传输参数不同，且多个区域关联的资源池没有重叠，所述第三传输参数关联所述第一传输参数，或者，所述第三传输参数属于所述第一传输参数；
根据所处的地理位置确定目标区域；
确定所述目标区域关联的多个资源池；
根据待传输的数据包的业务信息和所述第二对应关系，从所述目标区域关联的多个资源池中确定所述待传输的数据包使用的资源池；
从所述待传输的数据包使用的资源池中选择所述传输资源。
在另一个示例中，所述第二获取模块具体用于：
接收网络设备发送的所述业务信息与子信道/第四传输参数的第三对应关系，其中，载波上包括多个资源池，每个资源池包括多个子信道，每个资源池包括的多个子信道对应的传输参数不同，所述第四传输参数关联所述第一传输参数，或者，所述第四传输参数属于所述第一传输参数；
根据待传输的数据包的业务信息和所述第三对应关系，从所述载波包括的子信道中确定所述待传输的数据包使用的子信道集合；
从所述待传输的数据包使用的子信道集合中选择所述传输资源。
本申请第四方面提供一种V2X的通信装置，包括：
发送模块，用于向终端设备发送业务信息与第一传输参数的第一对应关系，所述业务信息包括以下信息中的任意一种或多种：业务标识，业务的单个包优先级PPPP，业务的单个包可靠性PPPR或服务质量流标识QFI，所述第一传输参数包括以下参数中的任意一种或多种：允许的子载波间隔SCS的信息、最大物理侧行共享信道PSSCH的时长、允许的小区的信息、允许的频点的信息、最小误块率信息、允许的第一类资源的信息、允许的第二类资源的信息、允许的调制编码方案MCS表的信息和允许的空口的信息，其中，所述第一类资源为网络设备预先配置的资源，所述第二类资源为半静态调度资源或动态调度资源。
在一个示例中，所述发送模块，还用于：
向所述终端设备发送物理下行控制信道PDCCH，所述PDCCH中包括传输资源的信息和宽带部分BWP的标识，所述BWP的标识用于指示所述终端设备切换到所述BWP的标识对应的BWP。
在另一个示例中，所述发送模块，还用于：
向所述终端设备发送BWP激活定时器的配置信息，所述BWP激活定时器用于在超时后控制所述终端设备从当前BWP切换到默认BWP或者初始BWP，所述初始BWP为所述终端设备用于初始接入的BWP。
在另一个示例中，所述发送模块，还用于：
向所述终端设备发送所述业务信息与载波上的资源池/第三传输参数的第二对应关系，所述载波上的多个资源池与多个区域标识对应，每个区域关联多个资源池，每个区域关联的多个资源池对应的传输参数不同，且多个区域关联的资源池没有重叠，所述第三传输参数关联所述第一传输参数，或者，所述第三传输参数属于所述第一传输参数。
在另一个示例中，所述发送模块，还用于：
向所述终端设备发送所述业务信息与子信道/第四传输参数的第三对应关系，其中，载波上包括多个资源池，每个资源池包括多个子信道，每个资源池包括的多个子信道对应的传输参数不同，所述第四传输参数关联所述第一传输参数，或者，所述第四传 输参数属于所述第一传输参数。
本申请第五方面提供一种终端设备，包括：处理器、存储器和收发器，所述存储器用于存储指令，所述收发器用于和其他设备通信，所述处理器用于执行所述存储器中存储的指令，以使所述终端设备执行如本申请第一方面所述的方法。
本申请第六方面提供一种网络设备，包括：处理器、存储器和收发器，所述存储器用于存储指令，所述收发器用于和其他设备通信，所述处理器用于执行所述存储器中存储的指令，以使所述网络设备执行如本申请第二方面所述的方法。
本申请第七方面提供一种计算机可读存储介质，所述计算机可读存储介质存储有指令，当所述指令被执行时，使得计算机执行如本申请第一方面所述的方法。
本申请第八方面提供一种计算机可读存储介质，所述计算机可读存储介质存储有指令，当所述指令被执行时，使得计算机执行如本申请第二方面所述的方法。
本申请第九方面提供一种芯片上***，所述芯片上***可应用于终端设备，所述芯片上***包括：至少一个通信接口，至少一个处理器，至少一个存储器，所述通信接口、存储器和处理器通过总线互联，所述处理器通过执行所述存储器中存储的指令，使得所述终端设备可执行本申请第一方面提供的方法。
本申请第十方面提供一种芯片上***，所述芯片上***可应用于网络设备，所述芯片上***包括：至少一个通信接口，至少一个处理器，至少一个存储器，所述通信接口、存储器和处理器通过总线互联，所述处理器通过执行所述存储器中存储的指令，使得所述网络设备可执行本申请第二方面提供的方法。
本申请第十一方面提供一种通信***，所述通信***包括终端设备和网络设备，所述终端设备用于执行本申请第一方面提供的方法，所述网络设备用于执行本申请第二方面提供的方法。
本申请提供一种V2X的通信方法和装置，包括：终端设备获取业务信息与第一传输参数的第一对应关系，该业务信息包括以下信息中的任意一种或多种：业务标识，业务的PPPP，业务的PPPR或QFI，第一传输参数包括以下参数中的任意一种或多种：允许的SCS的信息、最大PSSCH的时长、允许的小区的信息、允许的频点的信息、最小误块率信息、允许的第一类资源的信息、允许的第二类资源的信息、允许的MCS表的信息和允许的空口的信息；获取传输资源以及传输资源对应的第二传输参数，根据第一对应关系和传输资源对应的第二传输参数，为业务信息对应的数据包分配传输资源。所述方法能够根据数据包的业务信息，为不同业务/PPPP/PPPR/QFI对应的数据包选择不同的传输参数，使得传输参数能够满足业务需求。
附图说明
图1为本申请适用的网络架构的示意图；
图2为本申请实施例一提供的V2X的通信方法的流程图；
图3为本申请实施例二提供的一种传输资源的获取方法的流程图；
图4为载波上的资源池、区域标识以及传输参数的对应关系的示意图；
图5为本申请实施例三提供的一种传输资源的获取方法的流程图；
图6为载波上的资源池、子信道以及传输参数的对应关系的示意图；
图7为本申请实施例四提供的BWP的切换方法的信令流程图；
图8为本申请实施例五提供的V2X的通信装置的结构示意图；
图9为本申请实施例六提供的V2X的通信装置的结构示意图；
图10为本申请实施例八提供的终端设备的结构示意图；
图11为本申请实施例九提供的网络设备的结构示意图。
具体实施方式
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
图1为本申请适用的网络架构的示意图，如图1所示，该网络架构包括基站和两个终端设备，基站和终端设备之间通过Uu空口通信，终端设备之间通过PC5空口通信，Uu空口和PC5空口都可以用于V2X通信。图1只是举例说明，并非限定，该网络架构中还可以包括更多的基站和终端设备。
本申请中的终端设备也称为终端(Terminal)、用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、无线通信设备、用户代理或用户装置。终端设备可以是无线局域网(wireless local area networks，WLAN)中的站点(station，ST)，可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant，PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备以及下一代通信***，例如，第五代通信(5-generation，5G)网络中的终端设备或者未来演进的公共陆地移动网络(public land mobile network，PLMN)网络中的终端设备，新空口(new radio，NR)通信***中的终端设备等。
基站可以是WLAN中的接入点(access point，AP)，全球移动通信***(global system for mobile communication，GSM)或码分多址接入(code division multiple access，CDMA)中的基站(base transceiver station，BTS)，也可以是WCDMA中的基站(nodeB，NB)，还可以是LTE中的演进型基站(evolved node B，eNB或eNodeB)，或者中继站或接入点，或NR***中的新一代基站(new generation node B，gNodeB)等，可选的，gNodeB可以采用中心单元(central unit，CU)和分布式单元(distributed unit，DU)分离的形态。
以下，对本申请中的部分用语进行解释说明，以便于本领域技术人员理解。
(1)本申请中的单元是指功能单元或逻辑单元。其可以为软件形式，通过处理器执行程序代码来实现其功能；也可以为硬件形式。
(2)“多个”是指两个或两个以上，其它量词与之类似。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A， 同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。“以上”或“以下”等所描述的范围包括边界点。
现有技术中，终端设备之间采用PC5空口通信时，终端设备使用的传输资源对应的传输参数为固定参数，该传输参数包括numerology(参数集)和物理侧行共享信道(physical sidelink shared channel，PSSCH)的时长(duration)等，numerology是指子载波间隔(sub-carrier spacing，SCS)和循环前缀(cyclic prefix，CP)的参数合集。不同的V2X业务对时延和可靠性性要求不一样，采用固定传输参数的方式显然不能有效的满足业务需求。为了解决现有技术的问题，本申请提供一种V2X的通信方法，该方法能够为不同的业务或者同一业务中的不同数据包选择不同的传输参数，提高了业务的时延和可靠性。
图2为本申请实施例一提供的V2X的通信方法的流程图，如图2所示，本实施例的方法可以包括：
步骤S101、终端设备获取业务信息与第一传输参数的第一对应关系。
其中，终端设备可以获取一种或多种业务信息第一传输参数的对应关系。例如，终端设备获取了业务信息1和业务信息2与第一传输参数的对应关系。每种业务信息包括以下信息中的任意一种或多种：业务标识，业务的单个包优先级(prose per packet priority，PPPP)，业务的单个包可靠性(prose per packet reliability，PPPR)或服务质量流标识(quality of service flow identifier，QFI)。业务标识用于唯一标识一个业务，例如，该业务标识可以为目的地标识(destination ID)。PPPR、PPPR和QFI属于业务的服务质量(quality of service，QoS)的量化参数，每种业务可以定义至少一种PPPP、和/或，还可以定义至少一种PPPR，和/或，还可以定义至少一种QFI。不同业务的PPPP、PPPR或QFI可以相同，也可以不同。
QFI用于标识一个QoS flow(QoS流)，QoS flow可以是一种细粒度的QoS区分机制，一个QoS flow表示具有相同的QoS参数的一类flow，该QoS参数包括以下参数中的任意一种或多种：
1、资源类型(resource type)。比如，资源类型可以包括如下中任一种或任几种：保证比特率(guaranteed bit rate，GBR)、非保证比特率(non-GBR)、低时延保证比特率(Delay critical GBR)，其中，GBR用于指示一个QoS flow的保证传输资源。资源类型用于确定专用的网络资源相关的QoS流级别的保证流量比特率(GFBR)值是否永久分配。
2、优先级(priority level)信息。比如，该优先级信息可用于指示不同QoS flow之间的调度优先级，高优先级的QoS flow优先调度，与5G QoS特性关联的优先级用于指示QoS flow的调度资源的优先级。
3、包的时延预算(packet delay budget，PDB)。比如，PDB可以定义数据包在终端设备和用户面实体(user plane function，UPF)之间的时延的上限。
4、丢包率(packet error rate，PER)。比如PER可以定义协议数据单元(protocol data unit，PDU)(例如IP数据包)的丢包的比例上限，该PDU可以为发送方已发送但未成功接收的数据包。
5、平均窗口(averaging window)。比如，平均窗口可以仅为GBR QoS flow定义， 平均窗口可以表示计算保证流比特率(guaranteed flow bit rate，GFBR)时使用的持续时间或者计算最大流比特率(maximum flow bit rate，MFBR)时使用的持续时间。
6、最大数据突发量(maximum data Burst volume，MDBV)。比如，该MDBV可以仅用于低时延的GBR资源类型，MDBV可以表示5G接入网(5G Access Network，5G-AN)在5G-AN PDB(比如5G-AN部分PDB)期间需要服务的最大数据量。
示例性的，第一传输参数包括以下参数中的任意一种或多种：
a、允许的SCS的信息。例如，允许的SCS的信息可以以列表的形式存在(allowedSCS-list)。业务信息对应的sidelink数据允许的SCS可以为一个或多个，例如，PPPR1对应的sidelink数据允许在SCS为15Khz的资源上传输，PPPR2对应的sidelink数据允许在SCS为15kHz和120kHz的资源上传输。对于PPPR对应的sidelink数据来说，SCS越大，sidelink数据的可靠性越高，并且有利于抗多普勒频偏。需说明的是，本申请实施例中涉及的sidelink数据为通过sidelink传输的数据，可以为V2X数据。
b、最大PSSCH的时长(max-PSSCHduration)。例如，PSSCH的时长可以为一个媒体接入控制协议数据单元(medium access control protocol data unit，MAC PDU)占用的时域资源的时长，终端设备通过PSSCH传输sidelink数据(例如sidelink MAC PDU)时，使用的PSSCH的时长不能大于该最大PSSCH的时长。时延越短的业务，PSSCH的时长越短越好。例如，业务信息1对应的最大PSSCH的时长为T1，业务信息2对应的最大PSSCH的时长为T2，其中T1大于T2，或者，PPPP1对应的最大PSSCH的时长为T3，PPPP 2对应的最大PSSCH的时长为T4，其中T3大于T4。
c、允许的小区(allowed cell)的信息。例如，允许的小区的信息包括小区的标识信息，例如小区的索引，小区的负载或干扰等因素影响业务的QoS要求，因此，传输参数中可以包括允许的小区的信息。业务信息对应的sidelink数据可允许在一个或多个小区传输。不同业务信息对应的数据允许的小区可能相同，也可能不同。例如，业务信息1对应的数据允许的小区为小区1，业务信息2对应的数据允许的小区为小区1和小区2，业务信息3对应的数据允许的小区为小区2。
d、允许的频点(allowed frequency)的信息。例如，允许的频点可以是频段的中心频点，允许的频点的信息可以包括频点的标识信息，可选地，还可以包括频点的频率取值或频点所在的频段范围。一个中心频点可以部署多个小区，频率越高信道衰落快，可靠性相对降低，针对可靠性要求高的业务尽量选择频率较低的频段。业务信息对应数据允许的频点可以为一个或多个，例如，业务信息1对应的数据允许的频点为f1，业务信息2对应的数据允许的频点为f1和f2，业务信息3对应的数据允许的频点为f3。
e、最小误块率(block error rate，BER)信息。例如，BRE是出错的PDU在所有发送的PDU中所占的百分比，误块率是一个长期统计平均量，是反映网络性能服务质量的一个重要指标。如果传输资源的误块率大于或等于该最小误块率，则为业务信息对应的数据包分配该传输资源，如果传输资源的误块率小于该最小误块率，说明该传输资源不满足要求，不为业务信息对应的数据包分配该传输资源。不同业务信息对应的数据的最小误块率不同，例如，业务信息1对应的数据的最小误块率为99％，业务 信息2对应的最小误块率为99.999％。
f、允许的第一类资源的信息。例如，该第一类资源为网络设备预先配置的资源，网络设备可以通过无线资源控制(radio resource control，RRC)消息配置该第一类资源，该第一类资源用于进行sidelink传输，基于LTE的V2X中的模式4采用该第一类资源进行数据传输，第一类资源的信息包括第一类资源的时域资源的位置和频域资源的位置。可选地，该第一类资源可以被多个用户共享，网络设备可以通过***信息广播该第一类资源的信息，小区内的所有终端设备都能够接收到该第一类资源的信息。对于可靠性要求较高的业务，不适合在第一类资源上进行sidelink传输。本申请实施例中，不同业务信息对应的数据允许的第一类资源可能相同也可能不同，例如，PPPR1的可靠性比PPPR2的可靠性高，那么PPPR1对应的数据不允许使用第一类资源，PPPR2对应的数据允许使用第一类资源。
g、允许的第二类资源的信息。例如，该第二类资源为半静态调度(semi-persistent scheduling，SPS)资源或动态调度资源，SPS资源为网络设备通过RRC消息和下行控制信息(downlink control information，DCI)消息分配的资源，动态调度资源为网络设备通过DCI分配的资源。该第二类资源用于进行sidelink传输，基于LTE的V2X中的模式3采用该第二类资源进行数据传输。在配置SPS资源时，RRC消息指示时域资源位置，例如周期和起始时间位置，DCI指示频域资源位置。本申请实施例中，不同业务信息对应的数据允许的第二类资源可能相同也可能不同，例如，PPPP1对应的数据允许使用第一资源，PPPP2对应的数据允许使用第二资源，第一资源和第二资源均为第二类资源。
第二类资源包括两种类型：类型1和类型2，示例性的，类型1为存在第二类资源与第一类资源共享的第二类资源，类型2为不存在第二类资源与第一类资源共享的第二类资源。当第二类资源为类型1对应的资源时，允许的第二类资源的信息为用于指示允许使用类型1对应资源的指示信息。当第二类资源为类型2对应的资源时，允许的第二类资源的信息为用于指示允许使用类型2对应资源的指示信息。当第二类资源包括类型1和类型2对应的资源时，允许的第二类资源的信息包括用于指示允许使用类型1对应资源的指示信息和/或用于指示允许使用类型2对应资源的指示信息。
h、允许的调制编码方案(modulation code scheme，MCS)表的信息。不同业务信息对应不同的误块率，例如，对于可靠性要求比较高的业务，需要一个稳健的MCS表用于sidelink数据传输。MCS表的信息可以为MCS表的标识信息，例如MCS表的索引，网络设备可以预先在终端设备上配置MCS表与影响传输速率的参数的对应关系。在一个MCS表中，包括至少一个MCS索引，每个MCS索引对应一组影响传输速率的参数，该影响传输速率的参数可以为调制规则(modulation order)和传输块大小(transport block size，TBS)。下述表一为MCS表的一种示意图，表一中第一列为MCS索引，第二列为调制规则，第三列为TBS索引。
表一
Figure PCTCN2019101960-appb-000001
Figure PCTCN2019101960-appb-000002
可选地，网络设备可以通过RRC消息为终端设备配置至少一张MCS表，或者，根据协议预先将至少一张MCS表存储在终端设备上，网络设备在分配sidelink资源时，会指示分配的sidelink资源使用该至少一张MCS表中的哪一张MCS表。
i、允许的空口的信息，不同的空口传输的业务数据是不同的，不同空口可以是指以下中任一种或任几种参数或信息相异的空口，以下参数可以是网络设备通过RRC消息为终端设备配置的，也可以是根据协议规定预先存储在终端设备上的。
A.波形参数
波形参数是指能够指示或者决定一种波形的参数。作为实例而非限定，在本申请实施例中，该波形参数可以包括以下任一种或任几种参数：
A1.正交频分复用(orthogonal frequency division multiplexing，OFDM)技术中使用的波形参数；
A2.单载波频分多址(single-carrier frequency-division multiple access，SC-OFDM)中使用的波形参数；
A3.滤波器正交频分复用(filter orthogonal frequency division multiplexing，filter OFDM)技术中使用的波形参数；
A4.通用滤波器多载波(universal filtered multi-carrier，UFMC)技术中使用的波形参数；
A5.滤波器组多载波(filter bank multicarrier，FBMC)技术中使用的波形参数；
A6.广义频分复用(generalized frequency division multi-plex，GFDM)技术中使用的波形参数。
B.调制方式
在通信技术中，为了保证通信效果，克服远距离信号传输中的问题，需要通过调制将信号频谱搬移到高频信道中进行传输。作为实例而非限定，在本申请实施例中，调制方式可以包括以下中任一种或任几种方式：
B1.幅移键控(amplitudc shift keying，ASK)调制；
B2.相移键控(phase shift keying，PSK)调制；
B3.频移键控(frequency shift keying，FSK)调制；
B4.正交振幅调制(quadrature amplitude modulation，QAM)调制；
B5.最小频移键控(minimum shift keying，MSK)调制；
B6.高斯滤波最小移频键(gaussian filtered minimum shift Keying，GMSK)调制；
B7.OFDM调制。
C.带宽配置
在本申请实施例中，带宽配置可以指空口所要求的频域资源的宽度，作为实例而非限定，针对宽带传输业务对应的带宽配置，可以指空口所要求的最小频域资源的宽度，或者空口所要求的最小子载波数量；针对窄带传输业务对应的带宽配置，可以指空口所要求的最大频域资源的宽度，或者空口所要求的最大子载波数量。
D.无线帧的配置方式
在本申请实施例中，无线帧的配置参数包括以下任一种或任几种参数：
D1.子载波间隔；
D2.符号长度；
D3.循环前缀；
D4.双工模式，例如，可以分为全双工、半双工(包括半双工的上下行配比)、或灵活双工等，示例性的，在某些空口中，双工模式可以固定也可以灵活变化，本申请并未特别限定；
D5.传输时间间隔(transmission time interval，TTI)长度，示例性的，在某些空口中，传输时间间隔可以是固定值也可以灵活变化，本申请并未特别限定。
D6.无线帧和无线子帧的长度。
E.资源复用方式
作为实例而非限定，在本申请实施例中，资源复用方式可以包括以下中任一种或任几种方式：
E1.频分复用(frequency division multiplexing，FDM)，示例性的，将用于传输信道的总带宽划分成若干个子频带(或称子信道)，每一个子信道传输1路信号。频分复用要求总频率宽度大于各个子信道频率之和，同时为了保证各子信道中所传输的信号互不干扰，应在各子信道之间设立隔离带，这样就保证了各路信号互不干扰。
E2.时分复用(time division multiplexing，TDM)，示例性的，采用同一物理连接的不同时段传输不同的信号，也能达到多路传输的目的。时分多路复用以时间作为信号分割的参量，故需使各路信号在时间轴上互不重叠。时分复用就是将提供给整个信道传输的时间划分成若干时间片(简称时隙)，并将这些时隙分配给每一个信号源使用。
E3.空分复用(space division multiplexing，SDM)，示例性的，让同一个频段在不同的空间内得到重复利用，在移动通信中，实现空间分割的基本技术是采用自适应阵列天线，在不同的用户方向上形成不同的波束。并且，可以通过空间的分割来区别不同的用户，也可以每个波束可提供一个无其他用户干扰的唯一信道，也可以通过空间的分割来区别同一个用户的不同数据，还可以通过空间的分割来区别同一个用户的相同数据，以求更高的增益。
E4.码分复用(code division multiplexing，CDM)，示例性的，靠不同的编码来区分各路原始信号的一种复用方式，作为实例而非限定，码分复用的方式可以为CDMA、频分多址(frequency division multiple access，FDMA)、时分多址(time division multiple access，TDMA)和同步码分多址(synchronous code division multiple access，SCDMA)等。
G.信道配置方式
在本申请实施例中，可以采用不同的信道传输不同种类的数据或信号，因此，信道配置方式可以指各信道对应的时频资源、码域资源或空域资源(如指定波束)。
作为实例而非限定，在本申请实施例中，无线通信所使用的信道可以包括以下至少一个信道或多个信道的组合：
G1.控制信道，用于传输控制信息，例如，可以包括上行控制信道和下行控制信道。
G2.数据信道，用于传输数据，例如，可以包括上行数据信道和下行数据信道。
G3.参考信道，用于传输参考信号。
G4.接入信道，用于发送接入信息。
H.编码方式
编码是一种以提高通信有效性为目的而对信源符号进行的变换，或者说为了减少或消除信源冗余度而进行的信源符号变换。示例性的，把信源输出符号序列变换为最短的码字序列，使后者的各码元所载荷的平均信息量最大，同时又能保证无失真地恢复原来的符号序列。
作为实例而非限定，在本申请实施例中，可以列举编码方式如下：
H1.极化码(Polar Code)
H2.拓博码(Turbo Code)
H3.卷积码(Convolution Code)
H4.低密度奇偶校验码(Low Density Parity Check Code)
I.协议栈配置方式
协议栈(Protocol Stack)是指网络中各层协议的总和，其形象的反映了一个网络中文件传输的过程：由上层协议到底层协议，再由底层协议到上层协议。作为实例而非限定，在本申请实施例中，无线通信所使用的协议栈可以包括以下至少一个协议层或多个协议层的组合，每层协议都可以存在多种协议实体：
I1.分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层
I2.无线链路控制(Radio Link Control，RLC)层
I3.MAC层
I4.物理(Physical)层
I5.RRC层
J.多址接入方式
与多路复用不同，多址接入技术不需要各路信息集中在一起，而是各自经过调制送到信道上去，以及各自从信道上取下经调制而得到的所需信息，作为实例而非限定，在本申请实施例中，无线通信所使用的多址接入方式可以包括以下中任一种或任几种：
J1.FDMA
J2.TDMA
J3.CDMA
J4.SCMA
J5.非正交多址接入(non orthogonal multiple access，NOMA)
J6.多用户共享接入(multi-user shared access，MUSA)。
不同的空口传输的业务数据不同，例如，业务信息1对应的数据通过LTE的空口传输，业务信息2对应的数据通过NR的空口传输，业务信息3对应的数据通过LTE的空口和NR的空口传输。
示例性的，该第一对应关系预先存储在终端设备中，该第一对应关系可以由协议规定。或者，该第一对应关系由网络设备发送给终端设备，即该第一对应关系是网络设备配置的，网络设备可以通过***消息将第一对应关系广播给终端设备，或者，通过专用信令将第一对应关系发送给终端设备。
步骤S102、终端设备获取传输资源以及传输资源对应的第二传输参数。
该传输资源为用于进行V2X通信的资源，比如sidelink资源，第二传输参数与第一传输参数具有关联关系，或者，第二传输参数属于第一传输参数。
以第一传输参数为允许的SCS的信息为例，则第二传输参数为传输资源的SCS的信息，或者第二传输参数为与传输资源的SCS关联的一个或多个参数，终端设备根据与传输资源的SCS关联的参数可以确定传输资源的SCS。例如业务信息对应的第一传输参数中允许的SCS为15Khz、20Khz和30Khz，则第二传输参数可以为15Khz、20Khz和30Khz中的任意一个。
以第一传输参数为最大PSSCH的时长为例，则第二传输参数为传输资源的PSCCH的时长，且传输资源的PSCCH的时长小于或等于该最大PSSCH的时长，或者，第二传输参数为与传输资源的PSCCH的时长关联的一个或多个参数，根据与传输资源的 PSCCH的时长关联的参数可以确定传输资源的PSSCH的时长，该关联的参数可以为sidelink授权。假设，业务信息对应的最大PSSCH的时长为T1毫秒(ms)，则传输资源的PSCCH的时长T2毫秒ms的取值小于或等于T1。
以第一传输参数为允许的小区的信息为例，则第二传输参数为传输资源所属的小区的信息，其中，传输资源所属的小区为第一传输参数中允许的小区的子集，或者，第二传输参数为与传输资源所属的小区的信息关联的一个或多个参数，根据与传输资源所属的小区的信息关联的参数可以确定传输资源所属的小区。假设，业务信息对应的第一传输参数中允许的小区为：小区1和小区2，则第二传输参数可以为小区1的标识信息或小区2的标识信息，其中小区的标识信息可以为小区索引。
以第一传输参数为允许的频点的信息为例，则第二传输参数为传输资源的频点的信息，第二传输参数中包括的传输资源的频点为第一传输参数中允许的频点的子集，或者，第二传输参数为与传输资源的频点关联的一个或多个参数，根据与传输资源的频点关联的参数可以确定传输资源的频点。假设，业务信息对应的第一传输参数中允许的频点为：f1和f2，则第二传输参数可以为f1的标识信息或f2的标识信息。
以第一传输参数为最小误块率的信息为例，则第二传输参数为传输资源的误块率的信息，传输资源的误块率小于或等于该最小误块率，或者，第二传输参数为与传输资源的误块率关联的一个或多个参数，根据与传输资源的误块率关联的参数可以确定传输资源的误块率。假设，业务信息对应的最小误块率为5％，则第二传输参数中包括的传输资源的误块率为4.5％或4％等。
以第一传输参数为允许的第一类资源的信息为例，则第二传输参数为传输资源使用的第一类资源的信息，传输资源使用的第一类资源为第一传输参数中允许的第一类资源。
以第一传输参数为允许的第二类资源的信息为例，则第二传输参数为传输资源使用的第二类资源的信息，传输资源使用的第二类资源为第一传输参数中允许的第二类资源。当第二类资源为类型1对应的资源时，传输资源使用的第二类资源为类型1对应的资源。当第二类资源为类型2对应的资源时，传输资源使用的第二类资源为类型2对应的资源。当第二类资源包括类型1和类型2对应的资源时，传输资源使用的第二类资源为类型1对应的资源和/或类型2对应的资源。
以第一传输参数为允许的MCS表的信息为例，则第二传输参数为传输资源使用的MCS表的信息，传输资源使用的MCS表为第一传输参数中允许的MCS表的子集，或者，第二传输参数为与传输资源使用的MCS表关联的一个或多个参数，根据该与传输资源使用的MCS表关联的参数可以确定传输资源使用的MCS表。假设，业务信息对应的第一传输参数中允许的MCS表为：MCS表1和MCS表2，则第二传输参数包括MCS表1的标识、MCS表2的标识中的任意一个或多个。
以第一传输参数为允许的空口的信息为例，则第二传输参数为传输资源使用的空口的信息，传输资源使用的空口为第一传输参数中允许的空口的子集，或者，第二传输参数为与传输资源使用的空口关联的一个或多个参数，根据与传输资源使用的空口关联的参数可以确定传输资源使用的空口。假设，业务信息对应的第一传输参数中允许的空口包括：空口1、空口2和空口3，则第二传输参数包括空口1的标识、空口2 的标识和空口3的标识中任意一个或多个。
上述以第一传输参数包括单一参数为例进行说明，当然，第一传输参数还可以包括多种参数，此时，第二传输参数也为多种，第二传输参数中包括的参数类型与第一传输参数包括的类型相同，第二传输参数和第一传输参数中的同类型参数的取值相同，或者第二传输参数的取值为第一传输参数的取值的子集。
该传输资源可以为第一类资源或者第二类资源，第二类资源包括动态调度资源或者SPS资源，当该传输资源为第二类资源中的动态调度资源时，网络设备可以通过物理下行控制信道(Physical Downlink Shared Channel，PDCCH)分配本次传输使用的传输资源的信息。当该传输资源为第二类资源中的SPS资源时，网络设备可以通过RRC消息指示时域资源位置，通过DCI指示频域资源位置。当该传输资源为第一类资源时，网络设备可以在RRC消息或者***消息中携带第一类资源的信息。
示例性的，本申请实施例中提到的传输资源如果不做特殊说明，都是指用于sidelink传输的资源，而不是用于Uu口传输的资源。为了区分用于sidelink传输的动态调度资源和用于Uu口传输的动态调度资源，可以通过不同的加扰码对PDCCH进行加扰，例如，用于分配sidelink传输的动态资源的PDCCH采用V2X-C-RNTI加扰，用于分配Uu口传输的动态调度资源采用C-RNTI加扰。同样，为了区分sidelink传输的SPS资源和Uu口传输的SPS资源，也可以通过不同的加扰码进行区分，例如，分配sidelink传输的SPS资源时使用V2X-CS-RNTI，分配Uu口传输的SPS资源时采用CS-RNTI。
示例性的，终端设备可以通过如下几种方式获取传输资源对应的第二传输参数：
方式(1)：终端设备接收所述网络设备发送的传输资源对应的第二传输参数的指示信息，或者，终端设备接收网络设备发送的传输资源对应的第二传输参数的关联信息的指示信息，根据传输资源对应的第二传输参数的关联信息的指示信息确定传输资源对应的第二传输参数。
例如，网络设备在分配sidelink传输资源的指示(DCI或RRC)中直接指示。或者，终端设备通过接收Uu口的DCI的传输参数确定sidelink传输资源的第二传输参数，比如DCI分配的mode 3 sidelink grant，以SCS为例，终端设备通过接收DCI所用的SCS确定sidelink grant对应的SCS。
方式(2)：终端设备根据待传输的数据包的业务信息和该第一对应关系，确定满足该待传输的数据包的业务信息的传输参数为传输资源对应的第二传输参数。
示例性的，终端设备根据当前到达的待传输的数据包的业务信息，从该待传输的数据包中确定优先级最高的数据包，该优先级最高的数据包包括以下数据中的任意一个：优先级最高的PPPP对应的数据包、可靠性要求最高的PPPR对应的数据包、优先级最高的业务的标识对应的数据包或优先级最高的QFI对应的数据包。然后，根据业务信息与第一传输参数的第一对应关系，以及该优先级最高的数据包的业务信息，确定该优先级最高的数据包的业务信息对应的第一传输参数，从该优先级最高的数据包的业务信息对应的第一传输参数中确定传输资源对应的第二传输参数。
本实施例中，传输资源对应的第二传输参数包括以下参数中的任意一个或多个：传输资源的SCS的信息、传输资源的PSSCH的时长、传输资源所属的小区的信息、 传输资源的频点的信息、传输资源的误块率信息、传输资源使用的第一类资源的信息、传输资源使用的第二类资源的信息、传输资源使用的MCS表的信息和传输资源使用的空口的信息。其中，第二传输参数中的部分或者全部可以通过如下方式确定：
a.假设该优先级最高的数据包的业务信息对应的第一传输参数包括：允许的小区/允许的频点，则从允许的小区/允许的频点中确定一个符合QoS需求的小区/频点作为传输资源的小区/频点，其中，该优先级最高的数据包的业务信息为以下信息中的任意一个：优先级最高PPPP、可靠性要求最高的PPPR、优先级最高的业务的标识或优先级最高的QFI。
b.假设该优先级最高的数据包的业务信息对应的第一传输参数包括：允许的SCS，则从允许的SCS中确定一个符合QoS需求SCS作为传输资源的SCS，其中，该优先级最高的数据包的业务信息为以下信息中的任意一个：优先级最高PPPP、可靠性要求最高的PPPR、优先级最高的业务的标识或优先级最高的QFI。
c.假设该优先级最高的数据包的业务信息对应的第一传输参数包括：允许的MCS表，则从允许的MCS表中确定一个符合QoS需求的MCS表作为传输资源使用的MCS表，其中，该优先级最高的数据包的业务信息为以下信息中的任意一个：优先级最高PPPP、可靠性要求最高的PPPR、优先级最高的业务的标识或优先级最高的QFI。
d.假设该优先级最高的数据包的业务信息对应的第一传输参数包括：最大PSSCH的时长，则根据加该最大PSSCH的时长确定一个符合QoS需求的PSSCH的时长作为传输资源的PSSCH，其中，该优先级最高的数据包的业务信息为以下信息中的任意一个：优先级最高PPPP、可靠性要求最高的PPPR、优先级最高的业务的标识或优先级最高的QFI。
e.假设该优先级最高的数据包的业务信息对应的第一传输参数包括：最小误块率，则确定一个符合QoS需求的误块率作为传输资源使用的误块率，其中，该优先级最高的数据包的业务信息为以下信息中的任意一个：优先级最高PPPP、可靠性要求最高的PPPR、优先级最高的业务的标识或优先级最高的QFI。
f.假设该优先级最高的数据包的业务信息对应的第一传输参数包括：空口的信息，则确定一个符合QoS需求的空口作为传输资源使用的空口，其中，该优先级最高的数据包的业务信息为以下信息中的任意一个：优先级最高PPPP、可靠性要求最高的PPPR、优先级最高的业务的标识或优先级最高的QFI。
方式(1)和方式(2)适用于终端设备处于网络设备的覆盖范围内(in coverage)，终端设备处于网络设备的覆盖范围内时，终端设备可以接收到网络设备发送的蜂窝网信号。
(3)当终端设备不处于网络设备的覆盖范围内(out of coverage)时，终端设备确定预配置的传输参数为传输资源对应的第二传输参数。该预配置的传输参数可以是协议规定并预先存储在终端设备上的，也可以是侧行传输的控制节点分配并发送给终端设备的，其中，终端设备不处于网络设备的覆盖范围是指终端设备接收不到蜂窝网信号。
步骤S103、终端设备根据第一对应关系和传输资源对应的第二传输参数，为业务信息对应的数据包分配传输资源。
示例性的，业务信息对应的数据包为当前到达sidelink协议栈的数据包，可以先确定当前到达的数据包的业务信息，比如，确定当前到达的数据包对应的PPPP、PPPR、业务标识或QFI，然后，根据当前到达的数据包对应的业务信息和该第一对应关系，确定当前到达的数据包对应的第一传输参数，根据当前到达的数据包对应的第一传输参数和传输资源对应的第二传输参数，确定该传输资源上能够传输的数据包，该传输资源上能够传输的数据包的第一传输参数满足该传输资源对应的第二传输参数。
以传输资源对应的第二传输参数为传输资源的SCS为例，假设传输资源的SCS为SCS1，当前到达的数据包中包括业务信息1对应的数据包和业务信息2对应的数据包，根据该第一对应关系可知，业务信息1允许的SCS为SCS1和SCS2，业务信息2允许的SCS为SCS2，而传输资源上只能传输SCS1的数据包，则将该传输资源分配给业务信息1对应的数据包。
以传输资源对应的第二传输参数为传输资源的PSSCH的时长为例，假设传输资源的PSSCH的时长为T1，当前到达的数据包中包括业务信息1对应的数据包和业务信息2对应的数据包，根据该第一对应关系可知，业务信息1对应的最大PSSCH的时长为T2，业务信息2对应的最大PSSCH的时长为T3，T1小于T2，T1大于T3，因此，传输资源上只能传输业务信息1对应的数据包，则将该传输资源分配给业务信息1对应的数据包。
以传输资源对应的第二传输参数为传输资源所属的小区的信息为例，假设传输资源所属的小区的信息为小区1的标识，当前到达的数据包中包括业务信息1对应的数据包和业务信息2对应的数据包，根据该第一对应关系可知，业务信息1允许的小区为小区1和小区2，业务信息2允许的小区为小区1和小区3，因此，传输资源上能传输业务信息1对应的数据包和业务信息2对应的数据包，则将该传输资源分配给业务信息1对应的数据包和/或业务信息2对应的数据包，每一种业务信息对应的数据分配多少资源，不做限定。
以传输资源对应的第二传输参数为传输资源的频点的信息为例，假设传输资源的频点的信息为f1的标识，当前到达的数据包中包括业务信息1对应的数据包和业务信息2对应的数据包，根据该第一对应关系可知，业务信息1允许的频点为f2，业务信息2允许的频点为f1和f2，因此，传输资源上只能传输业务信息2对应的数据包，则将该传输资源分配给业务信息2对应的数据包。
以传输资源对应的第二传输参数为传输资源的误块率信息为例，假设传输资源的误块率为3％，当前到达的数据包中包括业务信息1对应的数据包和业务信息2对应的数据包，根据该第一对应关系可知，业务信息1对应的最小误块率为5％，业务信息2对应的最小误块率为4％，因此，传输资源上能够传输业务信息1对应的数据包和业务信息2对应的数据包，则将该传输资源分配给业务信息1对应的数据包和/或业务信息2对应的数据包，每一种业务信息对应的数据分配多少资源，不做限定。
以传输资源对应的第二传输参数为传输资源使用的第一类资源的信息为例，假设传输资源使用的第一类资源为第一资源，当前到达的数据包中包括业务信息1对应的数据包和业务信息2对应的数据包，根据该第一对应关系可知，业务信息1对应的第一类资源属于第一资源，业务信息2对应的资源不属于第一资源，因此，传输资源上 能够传输业务信息1对应的数据包，则将该传输资源分配给业务信息1对应的数据包。
当传输资源对应的第二传输参数为传输资源使用的第二类资源的信息时，分配传输资源的方式与第一类资源类似，这里不再重复说明。
以传输资源对应的第二传输参数为传输资源使用的MCS表的信息为例，假设传输资源使用的MCS表为MCS表2，当前到达的数据包中包括业务信息1对应的数据包和业务信息2对应的数据包，根据该第一对应关系可知，业务信息1对应的MCS表为MCS表2，业务信息2对应的MCS表为MCS表1，因此，传输资源上只能传输业务信息2对应的数据包，则将该传输资源分配给业务信息2对应的数据包。
以传输资源对应的第二传输参数为传输资源使用的空口的信息为例，假设传输资源使用的空口为空口1，当前到达的数据包中包括业务信息1对应的数据包和业务信息2对应的数据包，根据该第一对应关系可知，业务信息1对应的空口为空口1和空口2，业务信息1对应的空口为空口1和空口3，因此，传输资源上能够传输业务信息1对应的数据包和业务信息2对应的数据包，则将该传输资源分配给业务信息1对应的数据包和/或业务信息2对应的数据包，每一种业务信息对应的数据分配多少资源，不做限定。
本实施例中，终端设备获取业务信息与第一传输参数的第一对应关系，该业务信息包括以下信息中的任意一种或多种：业务标识，业务的QFI，业务的PPPP或业务的PPPR，第一传输参数包括以下参数中的任意一种或多种：允许的SCS的信息、最大PSSCH的时长、允许的小区的信息、允许的频点的信息、最小误块率信息、允许的第一类资源的信息、允许的第二类资源的信息、允许的MCS表的信息和允许的空口的信息；获取传输资源以及传输资源对应的第二传输参数，根据第一对应关系和传输资源对应的第二传输参数，为业务信息对应的数据包分配传输资源。所述方法能够根据数据包的业务信息，为不同业务对应的数据包、不同PPPP/PPPR对应的数据包、不同QFI对应的数据包选择不同的传输参数，使得传输参数能够满足业务需求。
本申请实施例二提供一种传输资源的获取方法，本实施例获取的传输资源为第一类资源，本实施例的方法可以单独使用，也可以结合实施例一的方法使用，比如，实施例中终端设备可以采用本实施例的方法获取传输资源，图3为本申请实施例二提供的一种传输资源的获取方法的流程图，如图3所示，本实施例提供的方法包括以下步骤：
步骤S201、终端设备接收网络设备发送的业务信息与载波上的资源池(resource pool)/第三传输参数的第二对应关系。
网络设备可以为一个载波上配置多个资源池，载波上的多个资源池与多个区域标识(zone ID)对应，区域标识用于标识一个区域，每个区域关联至少一个资源池，不同于现有技术，本实施例中，每个区域关联多个资源池，每个区域关联的多个资源池对应的传输参数不同，且多个区域关联的资源池可以重叠，也可以没有重叠，不同区域关联的资源池对应的传输参数可能相同也可能不同。
图4为载波上的资源池、区域标识以及传输参数的对应关系的示意图，如图4所示，载波上共包括N个资源池，N的取值可以为8，资源池0、资源池1和资源池2 关联区域标识1对应的区域，资源池3和资源池4关联区域标识2对应的区域，资源池5、资源池6和资源池7关联区域标识3对应的区域，资源池1对应第一组传输参数，资源池2对应第二组传输参数，资源池3对应第三组传输参数，其中，每组传输参数可以为一个numerology(参数集)，numerology可以包括SCS、循环前缀、TTI等一项或多项。
网络设备可以配置业务信息与载波上的资源池的第二对应关系，该业务信息可以为PPPP、PPPR或业务标识，还可以是其他能够反映QoS的参数，比如QFI。以PPPP为例，网络设备可以配置PPPP1对应区域标识1关联的资源池，配置PPPP2对应区域标识2关联的资源池，而每个资源池对应的传输参数是已知的，终端设备根据业务信息与载波上的资源池的第二对应关系，以及载波上的各资源池对应的传输参数，可以获知业务信息对应的资源池，以及第三传输参数。
网络设备还可以配置业务信息与第三传输参数的第二对应关系，而载波上的每个资源池对应的传输参数是已知的，终端设备根据业务信息与第三传输参数的第二对应关系，以及资源池对应的传输参数，可以获知业务信息对应的资源池。本实施例中，该第三传输参数关联第一传输参数，或者，第三传输参数属于第一传输参数。
步骤S202、终端设备根据所处的地理位置确定目标区域。
示例性的，终端设备根据如下公式计算区域标识：
x1＝Floor(x/L)Mod Nx；
y1＝Floor(y/W)Mod Ny；
Zone_id＝y1*Nx+x1.
其中，x1为地理区域的长度，y1为地理区域的宽度，Nx为经度相关的区域总数，Ny为纬度相关的区域总数。
步骤S203、终端设备确定目标区域关联的多个资源池。
终端设备根据目标区域标识，确定该目标区域关联的多个资源池。
步骤S204、终端设备根据待传输的数据包的业务信息和该第二对应关系，从目标区域关联的多个资源池中确定待传输的数据包使用的资源池。
以第二对应关系为业务信息与载波上的资源池的对应关系为例，终端设备已知待传输的数据包的业务信息，则根据待传输的数据包的业务信息和该第二对应关系，确定目标区域关联的多个资源池分别对应的业务信息，根据目标区域关联的多个资源池分别对应的业务信息和待传输数据包的业务信息，从目标区域关联的多个资源池中选择满足待传输的数据包的业务信息的资源池作为待传输的数据包使用的资源池。示例性的，当待传输的数据包的业务信息为PPPR时，终端设备首先确定待传输的数据包的最高PPPR等级，如PPPR＝a，终端设备从目标区域标识对应的多个资源池中选择一个关联到PPPR a的资源池作为待传输数据包使用的资源池。
以第二对应关系为业务信息与第三传输参数的对应关系为例，终端设备已知待传输的数据包的业务信息，则根据待传输数据包的业务信息和该第二对应关系，确定待传输的数据包使用的传输参数，而载波上的每个资源池使用的传输参数是已知的，则根据资源池使用的传输参数，从目标区域关联的多个资源池中确定满足待传输的数据包使用的传输参数的资源池为待传输的数据包使用的资源池。示例性的，当待传输的 数据包的业务信息为PPPR且传输参数是SCS时，终端设备首先确定待传输的数据包的最高PPPR等级，如PPPR＝a，并确定和PPPR a关联的SCS，如SCS＝b，终端设备从目标区域标识对应的多个资源池中选择一个SCS＝b的资源池作为待传输的数据包使用的资源池。
步骤S205、终端设备从待传输的数据包使用的资源池中选择传输资源。
其中，终端设备确定的待传输的数据包使用的资源池可能为一个或多个，当待传输的数据包使用的资源池为多个时，终端设备可以使用如下准则中任意一个确定一个资源池：
(1)根据各资源池的负载，从数据包使用的多个资源池中选择负载最小的资源池，从该负载最小的资源池中选择传输资源。资源池的负载可以通过信道繁忙比例(Channel Busy Ratio，CBR)衡量，终端设备可以分别测量每个资源池的CBR。
(2)网络设备设置业务信息与CBR的对应关系，例如，指定某个PPPR/PPPP/业务标识对应的数据只能在CBR不大于对应的CBR门限的资源池上进行传输，终端设备根据该对应关系，从数据包使用的多个资源池中选择一个满足CBR门限要求的资源池。
本申请实施例三提供一种传输资源的获取方法，本实施例获取的传输资源为第一类资源，本实施例的方法可以单独使用，也可以结合实施例一的方法使用，比如，实施例中终端设备可以采用本实施例的方法获取传输资源，图5为本申请实施例三提供的一种传输资源的获取方法的流程图，如图5所示，本实施例提供的方法包括以下步骤：
步骤S301、终端设备接收网络设备发送的业务信息与子信道/第四传输参数的第三对应关系。
网络设备可以在一个载波上配置多个资源池，载波上每个资源池关联一个区域，不同区域通过区域标识区分，不同于现有技术，本实施例中网络设备将每个资源池划分为多个子信道(subchannel)，每个子信道由多个物理层资源块组成，并配置每个子信道采用的传输参数，其中，每个资源池包括的多个子信道对应的传输参数不同，不同资源池中子信道对应的传输参数可能相同也可能不同。本实施例中，第四传输参数关联第一传输参数，或者，第四传输参数属于第一传输参数。
图6为载波上的资源池、子信道以及传输参数的对应关系的示意图，如图6所示，载波上共包括N个资源池，每个资源池对应一个区域标识，每个资源池包括多个子信道，以资源池1为例，资源池1关联的区域为区域标识0对应的区域，资源池1包括三个子信道：子信道1、子信道2和子信道3，子信道1对应第一组传输参数，子信道2对应第二组传输参数，子信道3对应第三组传输参数，每组传输参数可以为一个numerology。
网络设备可以配置业务信息与子信道的第三对应关系，该业务信息可以为PPPP、PPPR或业务标识，还可以是其他能够反映QoS的参数。以PPPP为例，网络设备可以配置PPPP1对应子信道1，配置PPPP2对应子信道2，每个子信道对应的传输参数是已知的，终端设备根据业务信息与子信道的第三对应关系，以及子信道对应的传输参 数，可以获知业务信息对应的传输参数。
网络设备还可以配置业务信息与第四传输参数的第三对应关系，而资源池中的每个子信道对应的传输参数是已知的，终端设备根据业务信息与第四传输参数的第三对应关系，以及资源池中的子信道对应的传输参数，可以获知业务信息对应的资源池。
步骤S302、终端设备根据所处的地理位置确定目标区域。
本步骤的具体实现方式参照实施例二中步骤S202的相关描述，这里不再赘述。
步骤S303、终端设备确定目标区域关联的资源池，目标区域关联的资源池中包括多个子信道。
本实施例中，目标区域关联一个资源池，该资源池包括多个子信道。
步骤S304、终端设备根据待传输的数据包的业务信息和第三对应关系，从目标区域关联的资源池中确定待传输的数据包使用的子信道集合。
以第三对应关系为业务信息与子信道的对应关系为例，终端设备已知待传输的数据包的业务信息，则根据待传输的数据包的业务信息和该第三对应关系，确定目标区域关联的资源池包括的多个子信道分别对应的业务信息，根据目标区域关联的资源池包括的多个子信道分别对应的业务信息和待传输数据包的业务信息，从目标区域关联的资源池包括的多个字信道中选择满足待传输的数据包的业务信息的子信道作为待传输的数据包使用的子信道集合。
以第三对应关系为业务信息与第四传输参数的对应关系为例，终端设备已知待传输的数据包的业务信息，则根据待传输数据包的业务信息和该第三对应关系，确定待传输的数据包使用的传输参数，而目标区域关联的资源池包括的多个子信道对应的传输参数是已知的，则根据目标区域关联的资源池包括的多个子信道对应的传输参数，从目标区域关联的资源池包括的多个子信道中确定满足待传输的数据包使用的传输参数的子信道作为待传输的数据包使用的子信道集合。
步骤S305、终端设备从待传输的数据包使用的子信道集合中选择传输资源。
本实施例中，也可以不配置资源池和区域的对应关系，对载波上包括的各资源池的子信道进行统一规划，相应的，也不需要执行上述步骤S302和步骤S303，当终端设备有数据包到达时，终端设备根据待传输的数据包的业务信息和第三对应关系，从载波包括的子信道中确定待传输的数据包使用的子信道集合，该待传输的数据包使用的子信道集合可能包括一个或多个子信道，该子信道集合中的子信道可能属于一个资源池，也能属于多个资源池。
当待传输的数据包使用的子信道集合中包括多个子信道时，终端设备可以使用如下准则中任意一个确定一个子信道：
(1)根据各子信道的负载，从数据包使用的多个子信道中选择负载最小的子信道，从该负载最小的子信道中选择传输资源。子信道的负载可以通过CBR衡量，终端设备可以分别测量每个子信道的CBR，或者，以资源池为单位测量一个资源池中的CBR，则该资源池中包括的子信道的CBR相同。
(2)网络设备设置业务信息与CBR的对应关系，例如，指定某个PPPR/PPPP/业务标识对应的数据只能在CBR不大于对应的CBR门限的子信道上进行传输，终端设备根据该对应关系，从数据包使用的多个子信道中选择一个满足CBR门限要求的子 信道。
为了支持多种业务或省电，NR***中引入了多宽带部分(bandwidth part，BWP)，不同BWP的SCS或频率是不一样的。在某一时间段内只有一个激活的BWP，终端设备在激活的BWP执行以下操作：监听PDCCH和数据发送。例如，BWP1支持业务1，BWP2支持业务2，如果当前只有业务1的数据到达，那么激活的BWP切换到BWP1；如果当前只有业务2的数据到达，那么激活的BWP切换到BWP2。或者，BWP1的带宽较大，BWP2的带宽较小，如果当前有大量数据到达，那么激活的BWP切换到BWP1；如果当前只有小量数据到达，那么激活的BWP切换到BWP2。
当网络设备决定进行BWP切换，则向终端设备发送BWP切换命令，由于BWP的切换命令是没有反馈的，网络设备无法确认终端设备是否成功接收到BWP切换命令。为了解决该问题，本实施例中引入了BWP激活定时器(bwp-inactivitytimer)，BWP激活定时器用于控制BWP切换，例如在超时后控制终端设备的激活BWP从当前BWP切换到默认BWP(default BWP)或者初始BWP(initial BWP)，该默认BWP是Uu口的BWP(Uu BWP)，由网络设备配置的，该初始BWP为终端设备用于小区的初始接入的BWP，也是Uu口的BWP。图7为本申请实施例四提供的BWP的切换方法的信令流程图，如图7所示，本实施例的方法包括以下步骤：
步骤S401、网络设备向终端设备发送BWP激活定时器的配置信息。
终端设备接收网络设备发送的BWP激活定时器的配置信息，完成BWP激活定时器的配置，该BWP激活定时器的配置信息包括以下至少一项：Uu BWP激活定时器的定时时长、启动条件、关闭条件等。
步骤S402、网络设备向终端设备发送用于分配sidelink资源的下行控制信令。
网络设备通过服务小区的激活的Uu BWP向终端设备发送该下行控制信令，该下行控制信令使用sidelink C-RNTI(用于分配动态调度的sidelink资源)或sidelink CS-RNTI(用于分配半静态调度的sidelink资源)加扰进行加扰。
可选地，该下行控制信令可以包括Uu BWP切换命令，该切换命令中包括Uu BWP的标识，该Uu BWP的标识用于指示终端设备切换到该Uu BWP的标识对应的Uu BWP。
例如，网络设备为终端设备的一个服务小区配置了3个BWP：BWP1、BWP2和BWP3，其中，最多只有一个BWP处于激活，假设当前激活BWP为BWP1，则终端设备只监听BWP1的PDCCH，如果从BWP1接收到下行控制信令，该下行控制信令包括BWP2的标识信息和sidelink资源分配指示信息，终端设备的激活BWP从BWP1切换到BWP2，BWP2为激活BWP，并只监听BWP2的PDCCH。
终端设备接收到用于分配sidelink资源的下行控制信令后，可选的，还可以执行以下操作：如果不存在与终端设备的服务小区相关联的正在进行的随机接入过程，或者，如果与该服务小区相关联的正在进行的随机接入过程成功的完成了接收通过C-RNTI加扰的PDCCH时，则启动或重新启动与激活的DL BWP关联的BWP激活定时器。
步骤S403、终端设备启动或重启激活的BWP关联的BWP激活定时器。
在BWP激活定时器运行期间，终端设备确定激活的BWP处于激活状态。
可选地，如果下行控制信令中携带BWP切换命令，则终端设备可以在完成BWP切换后，启动或重启BWP激活定时器。可选地，如果BWP切换命令用于指示终端设备切换到默认BWP或初始BWP，终端设备可以不启动BWP激活定时器。终端设备也可以在切换BWP之前启动或重启BWP激活定时器，本实施例不对此进行限制。
步骤S404、BWP激活定时器超时后，终端设备从激活的BWP切换到默认BWP或者初始BWP。
网络设备在发送BWP切换命令后，也会启动或重启BWP激活定时器，在BWP激活定时器超时后如果配置了默认BWP，则切换到BWP，如果没有配置默认BWP，则切换到初始BWP，从而保证网络设备和终端设备上激活的BWP一致。
本实施例中，终端设备接收网络设备发送的用于分配sidelink资源的下行控制信令，根据该下行控制信令启动或重启BWP激活定时器，在BWP激活定时器超时后，从激活的BWP切换到默认BWP或者初始BWP。该方法使得即使BWP切换命令丢失，网络设备和终端设备上的激活的BWP也能保持一致。
示例性的，本实施例的方法可以独立应用在BWP的切换过程中，也可以结合实施例一的方法，在通过PDCCH分配动态调度资源时，在PDCCH中携带Uu BWP的标识，终端设备接收到PDCCH后，根据PDCCH中携带的BWP的标识切换BWP。本申请实施例中提到的动态调度资源是用于侧行传输的资源，不是用于Uu口传输的资源，为了区分侧行传输的动态调度资源和Uu口传输的动态调度资源，可以通过不同的加扰码对PDCCH进行加扰，例如，分配侧向传输的动态调度资源的PDCCH采用V2X-C-RNTI加扰，分配Uu口传输的动态调度资源采用C-RNTI加扰。
图8为本申请实施例五提供的V2X的通信装置的结构示意图，所述装置可以应用在终端设备中，如图8所示，本实施例提供的装置包括：
第一获取模块11，用于获取业务信息与第一传输参数的第一对应关系，所述业务信息包括以下信息中的任意一种或多种：业务标识，业务的单个包优先级PPPP，业务的单个包可靠性PPPR或服务质量流标识QFI；
第二获取模块12，用于所述终端设备获取传输资源以及所述传输资源对应的第二传输参数，所述第二传输参数与所述第一传输参数具有关联关系，或者，所述第二传输参数属于所述第一传输参数；
资源分配模块13，用于所述终端设备根据所述第一对应关系和所述传输资源对应的第二传输参数，为所述业务信息对应的数据包分配所述传输资源。
在一个示例中，所述第一传输参数包括以下参数中的任意一种或多种：允许的子载波间隔SCS的信息、最大物理侧行共享信道PSSCH的时长、允许的小区的信息、允许的频点的信息、最小误块率信息、允许的第一类资源的信息、允许的第二类资源的信息、允许的调制编码方案MCS表的信息和允许的空口的信息，其中，所述第一类资源为网络设备预先配置的资源，所述第二类资源为半静态调度资源或动态调度资源。
在另一个示例中，所述第一对应关系预先存储在所述终端设备中；或者，
所述第一对应关系是网络设备发送给所述终端设备的。
在另一个示例中，所述第二获取模块12具体用于：接收所述网络设备发送的所述 传输资源对应的第二传输参数的指示信息。或者，接收所述网络设备发送的所述传输资源对应的第二传输参数的关联信息的指示信息，根据所述传输资源对应的第二传输参数的关联信息的指示信息确定所述传输资源对应的第二传输参数。
在另一个示例中，所述第二获取模块12具体用于：根据待传输的数据包的业务信息和所述第一对应关系，确定满足所述待传输的数据包的业务信息的传输参数为所述传输资源对应的第二传输参数。
在另一个示例中，所述第二获取模块12具体用于：当所述终端设备不处于所述网络设备的覆盖范围内时，确定默认传输参数为所述传输资源对应的第二传输参数。
在另一个示例中，所述第二获取模块12具体用于：
接收网络设备发送的所述业务信息与载波上的资源池/第三传输参数的第二对应关系，所述载波上的多个资源池与多个区域标识对应，每个区域关联多个资源池，每个区域关联的多个资源池对应的传输参数不同，且多个区域关联的资源池没有重叠，所述第三传输参数关联所述第一传输参数，或者，所述第三传输参数属于所述第一传输参数；
根据所处的地理位置确定目标区域；
确定所述目标区域关联的多个资源池；
根据待传输的数据包的业务信息和所述第二对应关系，从所述目标区域关联的多个资源池中确定所述待传输的数据包使用的资源池；
从所述待传输的数据包使用的资源池中选择所述传输资源。
在另一个示例中，所述第二获取模块12具体用于：
接收网络设备发送的所述业务信息与子信道/第四传输参数的第三对应关系，其中，载波上包括多个资源池，每个资源池包括多个子信道，每个资源池包括的多个子信道对应的传输参数不同，所述第四传输参数关联所述第一传输参数，或者，所述第四传输参数属于所述第一传输参数；
根据待传输的数据包的业务信息和所述第三对应关系，从所述载波包括的子信道中确定所述待传输的数据包使用的子信道集合；
从所述待传输的数据包使用的子信道集合中选择所述传输资源。
本实施例的装置，可用于执行实施例一至实施例三中终端设备执行的方法步骤，具体实现方式和结束效果类似，这里不再赘述。
图9为本申请实施例六提供的V2X的通信装置的结构示意图，本实施例的装置在图8所示装置的基础上，所述第二获取模块12具体用于：接收所述网络设备发送的所述传输资源的信息，所述传输资源为动态调度资源，所述传输资源的信息承载在物理下行控制信道PDCCH中，所述PDCCH中还携带宽带部分BWP的标识。
相应的，所述装置还包括：
切换模块14，用于当所述终端设备接收到所述PDCCH时，根据所述BWP的标识，从当前BWP切换到所述BWP的标识对应的BWP；
定时器控制模块15，用于启动或重启BWP激活定时器，所述BWP激活定时器用于在超时后控制所述终端设备从当前BWP切换到默认BWP或者初始BWP，所述初 始BWP为所述终端设备用于小区的初始接入的BWP。
本申请实施例七提供一种V2X的通信装置的结构示意图，本实施例的装置可以应用在网络设备中，本实施例的装置包括：
发送模块，用于向终端设备发送业务信息与第一传输参数的第一对应关系，所述业务信息包括以下信息中的任意一种或多种：业务标识，业务的单个包优先级PPPP，业务的单个包可靠性PPPR或服务质量流标识QFI，所述第一传输参数包括以下参数中的任意一种或多种：允许的子载波间隔SCS的信息、最大物理侧行共享信道PSSCH的时长、允许的小区的信息、允许的频点的信息、最小误块率信息、允许的第一类资源的信息、允许的第二类资源的信息、允许的调制编码方案MCS表的信息和允许的空口的信息，其中，所述第一类资源为网络设备预先配置的资源，所述第二类资源为半静态调度资源或动态调度资源。
在一个示例中，所述发送模块，还用于：
向所述终端设备发送物理下行控制信道PDCCH，所述PDCCH中包括传输资源的信息和宽带部分BWP的标识，所述BWP的标识用于指示所述终端设备切换到所述BWP的标识对应的BWP。
在另一个示例中，所述发送模块，还用于：
向所述终端设备发送BWP激活定时器的配置信息，所述BWP激活定时器用于在超时后控制所述终端设备从当前BWP切换到默认BWP或者初始BWP，所述初始BWP为所述终端设备用于初始接入的BWP。
在另一个示例中，所述发送模块，还用于：
向所述终端设备发送所述业务信息与载波上的资源池/第三传输参数的第二对应关系，所述载波上的多个资源池与多个区域标识对应，每个区域关联多个资源池，每个区域关联的多个资源池对应的传输参数不同，且多个区域关联的资源池没有重叠，所述第三传输参数关联所述第一传输参数，或者，所述第三传输参数属于所述第一传输参数。
在另一个示例中，所述发送模块，还用于：
向所述终端设备发送所述业务信息与子信道/第四传输参数的第三对应关系，其中，载波上包括多个资源池，每个资源池包括多个子信道，每个资源池包括的多个子信道对应的传输参数不同，所述第四传输参数关联所述第一传输参数，或者，所述第四传输参数属于所述第一传输参数。
图10为本申请实施例八提供的终端设备的结构示意图，如图10所示，本实施例提供的终端设备，包括：处理器21、存储器22和收发器23，所述存储器22用于存储指令，所述收发器23用于和其他设备通信，所述处理器21用于执行所述存储器22中存储的指令，以使所述终端设备执行如本申请实施例一至实施例四中终端设备执行的方法步骤，具体实现方式和技术效果类似，这里不再赘述。
图11为本申请实施例九提供的网络设备的结构示意图，如图11所示，本实施例提供的网络设备，包括：处理器31、存储器32和收发器33，所述存储器32用于存储 指令，所述收发器33用于和其他设备通信，所述处理器31用于执行所述存储器32中存储的指令，以使所述网络设备执行如本申请实施例一至实施例四中网络设备执行的方法步骤，具体实现方式和技术效果类似，这里不再赘述。
本申请实施例十提供一种计算机可读存储介质，所述计算机可读存储介质存储有指令，当所述指令被执行时，使得计算机执行如本申请实施例一至实施例四中终端设备执行的方法步骤，具体实现方式和技术效果类似，这里不再赘述。
本申请实施例十一提供一种计算机可读存储介质，所述计算机可读存储介质存储有指令，当所述指令被执行时，使得计算机执行如本申请实施例一至实施例四中网络设备执行的方法步骤，具体实现方式和技术效果类似，这里不再赘述。
本申请实施例十二提供一种芯片上***，所述芯片上***可应用于终端设备，所述芯片上***包括：至少一个通信接口，至少一个处理器，至少一个存储器，所述通信接口、存储器和处理器通过总线互联，所述处理器通过执行所述存储器中存储的指令，使得所述终端设备可执行本申请实施例一至实施例四中终端设备执行的方法步骤，具体实现方式和技术效果类似，这里不再赘述。
本申请实施例十三提供一种芯片上***，所述芯片上***可应用于网络设备，所述芯片上***包括：至少一个通信接口，至少一个处理器，至少一个存储器，所述通信接口、存储器和处理器通过总线互联，所述处理器通过执行所述存储器中存储的指令，使得所述网络设备可执行本申请实施例一至实施例四中网络设备执行的方法步骤，具体实现方式和技术效果类似，这里不再赘述。
本申请实施例十四提供一种通信***，所述通信***包括终端设备和网络设备，所述终端设备用于执行本申请实施例一至实施例四中终端设备执行的方法步骤，所述网络设备用于执行本申请实施例一至实施例四中网络设备执行的方法步骤。
可以理解，本申请实施例中网络设备或者终端设备中使用的处理器可以是中央处理器(CPU)，通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)，现场可编程门阵列(FPGA)或者其他可编程逻辑器件、晶体管逻辑器件，硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。
本申请实施例所述的总线可以是工业标准体系结构(Industry Standard Architecture，ISA)总线、外部设备互连(Peripheral Component，PCI)总线或扩展工业标准体系结构(Extended Industry Standard Architecture，EISA)总线等。总线可以分为地址总线、数据总线、控制总线等。为便于表示，本申请附图中的总线并不限定仅有一根总线或一种类型的总线。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(英文：processor)执行本申请各个实施例所述方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(英文：Read-Only Memory，简称：ROM)、随机存取存储器(英文：Random Access Memory，简称：RAM)、磁碟或者光盘等各种可以存储程序代码的介质。

Claims (33)

  1. 一种V2X的通信方法，其特征在于，包括：
    终端设备获取业务信息与第一传输参数的第一对应关系，所述业务信息包括以下中的任意一种或多种：业务标识，业务的单个包优先级PPPP，业务的单个包可靠性PPPR或服务质量流标识QFI；
    所述终端设备获取传输资源以及所述传输资源对应的第二传输参数，所述第二传输参数与所述第一传输参数具有关联关系，或者，所述第二传输参数属于所述第一传输参数；
    所述终端设备根据所述第一对应关系和所述传输资源对应的第二传输参数，为与所述业务信息对应的数据包分配所述传输资源。
  2. 根据权利要求1所述的方法，其特征在于，所述第一传输参数包括以下参数中的任意一种或多种：允许的子载波间隔SCS的信息、最大物理侧行共享信道PSSCH的时长、允许的小区的信息、允许的频点的信息、最小误块率信息、允许的第一类资源的信息、允许的第二类资源的信息、允许的调制编码方案MCS表的信息和允许的空口的信息，其中，所述第一类资源为网络设备预先配置的资源，所述第二类资源为半静态调度资源或动态调度资源。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一对应关系预先存储在所述终端设备中；或者，
    所述第一对应关系是网络设备发送给所述终端设备的。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，所述终端设备获取所述传输资源对应的第二传输参数，包括：
    所述终端设备接收所述网络设备发送的所述传输资源对应的第二传输参数的指示信息；
    或者，所述终端设备接收所述网络设备发送的所述传输资源对应的第二传输参数的关联信息的指示信息，根据所述传输资源对应的第二传输参数的关联信息的指示信息确定所述传输资源对应的第二传输参数。
  5. 根据权利要求1-3任一项所述的方法，其特征在于，所述终端设备获取所述传输资源对应的第二传输参数，包括：
    所述终端设备根据待传输的数据包的业务信息和所述第一对应关系，确定满足所述待传输的数据包的业务信息的传输参数为所述传输资源对应的第二传输参数。
  6. 根据权利要求1-3任一项所述的方法，其特征在于，所述终端设备获取所述传输资源对应的第二传输参数，包括：
    当所述终端设备不处于所述网络设备的覆盖范围内时，所述终端设备确定默认传输参数为所述传输资源对应的第二传输参数。
  7. 根据权利要求4-6任一项所述的方法，其特征在于，所述终端设备获取所述传输资源包括：
    所述终端设备接收所述网络设备发送的所述传输资源的信息；
    所述传输资源为动态调度资源，所述传输资源的信息承载在物理下行控制信道 PDCCH中，所述PDCCH中还携带宽带部分BWP的标识，所述方法还包括：
    当所述终端设备接收到所述PDCCH时，所述终端设备根据所述BWP的标识，从当前BWP切换到所述BWP的标识对应的BWP，并启动或重启BWP激活定时器，所述BWP激活定时器用于在超时后控制所述终端设备从当前BWP切换到默认BWP或者初始BWP，所述初始BWP为所述终端设备用于小区的初始接入的BWP。
  8. 根据权利要求1-6任一项所述的方法，其特征在于，所述终端设备获取所述传输资源，包括：
    所述终端设备接收网络设备发送的所述业务信息与载波上的资源池/第三传输参数的第二对应关系，所述载波上的多个资源池与多个区域标识对应，每个区域关联多个资源池，每个区域关联的多个资源池对应的传输参数不同，且多个区域关联的资源池没有重叠，所述第三传输参数关联所述第一传输参数，或者，所述第三传输参数属于所述第一传输参数；
    所述终端设备根据所处的地理位置确定目标区域；
    所述终端设备确定所述目标区域关联的多个资源池；
    所述终端设备根据待传输的数据包的业务信息和所述第二对应关系，从所述目标区域关联的多个资源池中确定所述待传输的数据包使用的资源池；
    所述终端设备从所述待传输的数据包使用的资源池中选择所述传输资源。
  9. 根据权利要求1-6任一项所述的方法，其特征在于，所述终端设备获取所述传输资源，包括：
    所述终端设备接收网络设备发送的所述业务信息与子信道/第四传输参数的第三对应关系，其中，载波上包括多个资源池，每个资源池包括多个子信道，每个资源池包括的多个子信道对应的传输参数不同，所述第四传输参数关联所述第一传输参数，或者，所述第四传输参数属于所述第一传输参数；
    所述终端设备根据待传输的数据包的业务信息和所述第三对应关系，从所述载波包括的子信道中确定所述待传输的数据包使用的子信道集合；
    所述终端设备从所述待传输的数据包使用的子信道集合中选择所述传输资源。
  10. 一种V2X的通信方法，其特征在于，包括：
    网络设备向终端设备发送业务信息与第一传输参数的第一对应关系，所述业务信息包括以下信息中的任意一种或多种：业务标识，业务的单个包优先级PPPP，业务的单个包可靠性PPPR或服务质量流标识QFI，所述第一传输参数包括以下参数中的任意一种或多种：允许的子载波间隔SCS的信息、最大物理侧行共享信道PSSCH的时长、允许的小区的信息、允许的频点的信息、最小误块率信息、允许的第一类资源的信息、允许的第二类资源的信息、允许的调制编码方案MCS表的信息和允许的空口的信息，其中，所述第一类资源为网络设备预先配置的资源，所述第二类资源为半静态调度资源或动态调度资源。
  11. 根据权利要求10所述的方法，其特征在于，还包括：
    所述网络设备向所述终端设备发送物理下行控制信道PDCCH，所述PDCCH中包括传输资源的信息和宽带部分BWP的标识，所述BWP的标识用于指示所述终端设备切换到所述BWP的标识对应的BWP。
  12. 根据权利要求10或11所述的方法，其特征在于，还包括：
    所述网络设备向所述终端设备发送BWP激活定时器的配置信息，所述BWP激活定时器用于在超时后控制所述终端设备从当前BWP切换到默认BWP或者初始BWP，所述初始BWP为所述终端设备用于初始接入的BWP。
  13. 根据权利要求10-12任一项所述的方法，其特征在于，还包括：
    所述网络设备向所述终端设备发送所述业务信息与载波上的资源池/第三传输参数的第二对应关系，所述载波上的多个资源池与多个区域标识对应，每个区域关联多个资源池，每个区域关联的多个资源池对应的传输参数不同，且多个区域关联的资源池没有重叠，所述第三传输参数关联所述第一传输参数，或者，所述第三传输参数属于所述第一传输参数。
  14. 根据权利要求10-12任一项所述的方法，其特征在于，还包括：
    所述网络设备向所述终端设备发送所述业务信息与子信道/第四传输参数的第三对应关系，其中，载波上包括多个资源池，每个资源池包括多个子信道，每个资源池包括的多个子信道对应的传输参数不同，所述第四传输参数关联所述第一传输参数，或者，所述第四传输参数属于所述第一传输参数。
  15. 一种V2X的通信装置，其特征在于，包括：
    第一获取模块，用于获取业务信息与第一传输参数的第一对应关系，所述业务信息包括以下信息中的任意一种或多种：业务标识，业务的单个包优先级PPPP，业务的单个包可靠性PPPR或服务质量流标识QFI；
    第二获取模块，用于所述终端设备获取传输资源以及所述传输资源对应的第二传输参数，所述第二传输参数与所述第一传输参数具有关联关系，或者，所述第二传输参数属于所述第一传输参数；
    资源分配模块，用于所述终端设备根据所述第一对应关系和所述传输资源对应的第二传输参数，为所述业务信息对应的数据包分配所述传输资源。
  16. 根据权利要求15所述的装置，其特征在于，所述第一传输参数包括以下参数中的任意一种或多种：允许的子载波间隔SCS的信息、最大物理侧行共享信道PSSCH的时长、允许的小区的信息、允许的频点的信息、最小误块率信息、允许的第一类资源的信息、允许的第二类资源的信息、允许的调制编码方案MCS表的信息和允许的空口的信息，其中，所述第一类资源为网络设备预先配置的资源，所述第二类资源为半静态调度资源或动态调度资源。
  17. 根据权利要求15或16所述的装置，其特征在于，所述第一对应关系预先存储在所述终端设备中；或者，
    所述第一对应关系是网络设备发送给所述终端设备的。
  18. 根据权利要求15-17任一项所述的装置，其特征在于，所述第二获取模块具体用于：
    接收所述网络设备发送的所述传输资源对应的第二传输参数的指示信息；
    或者，接收所述网络设备发送的所述传输资源对应的第二传输参数的关联信息的指示信息，根据所述传输资源对应的第二传输参数的关联信息的指示信息确定所述传输资源对应的第二传输参数。
  19. 根据权利要求15-17任一项所述的装置，其特征在于，所述第二获取模块具体用于：
    根据待传输的数据包的业务信息和所述第一对应关系，确定满足所述待传输的数据包的业务信息的传输参数为所述传输资源对应的第二传输参数。
  20. 根据权利要求15-17任一项所述的装置，其特征在于，所述第二获取模块具体用于：
    当所述终端设备不处于所述网络设备的覆盖范围内时，确定默认传输参数为所述传输资源对应的第二传输参数。
  21. 根据权利要求18-20任一项所述的装置，其特征在于，所述第二获取模块具体用于：
    接收所述网络设备发送的所述传输资源的信息；
    所述传输资源为动态调度资源，所述传输资源的信息承载在物理下行控制信道PDCCH中，所述PDCCH中还携带宽带部分BWP的标识；
    所述装置还包括：
    切换模块，用于当所述终端设备接收到所述PDCCH时，根据所述BWP的标识，从当前BWP切换到所述BWP的标识对应的BWP；
    定时器控制模块，用于启动或重启BWP激活定时器，所述BWP激活定时器用于在超时后控制所述终端设备从当前BWP切换到默认BWP或者初始BWP，所述初始BWP为所述终端设备用于小区的初始接入的BWP。
  22. 根据权利要求15-20任一项所述的装置，其特征在于，所述第二获取模块具体用于：
    接收网络设备发送的所述业务信息与载波上的资源池/第三传输参数的第二对应关系，所述载波上的多个资源池与多个区域标识对应，每个区域关联多个资源池，每个区域关联的多个资源池对应的传输参数不同，且多个区域关联的资源池没有重叠，所述第三传输参数关联所述第一传输参数，或者，所述第三传输参数属于所述第一传输参数；
    根据所处的地理位置确定目标区域；
    确定所述目标区域关联的多个资源池；
    根据待传输的数据包的业务信息和所述第二对应关系，从所述目标区域关联的多个资源池中确定所述待传输的数据包使用的资源池；
    从所述待传输的数据包使用的资源池中选择所述传输资源。
  23. 根据权利要求15-20任一项所述的装置，其特征在于，所述第二获取模块具体用于：
    接收网络设备发送的所述业务信息与子信道/第四传输参数的第三对应关系，其中，载波上包括多个资源池，每个资源池包括多个子信道，每个资源池包括的多个子信道对应的传输参数不同，所述第四传输参数关联所述第一传输参数，或者，所述第四传输参数属于所述第一传输参数；
    根据待传输的数据包的业务信息和所述第三对应关系，从所述载波包括的子信道中确定所述待传输的数据包使用的子信道集合；
    从所述待传输的数据包使用的子信道集合中选择所述传输资源。
  24. 一种V2X的通信装置，其特征在于，包括：
    发送模块，用于向终端设备发送业务信息与第一传输参数的第一对应关系，所述业务信息包括以下信息中的任意一种或多种：业务标识，业务的单个包优先级PPPP，业务的单个包可靠性PPPR或服务质量流标识QFI，所述第一传输参数包括以下参数中的任意一种或多种：允许的子载波间隔SCS的信息、最大物理侧行共享信道PSSCH的时长、允许的小区的信息、允许的频点的信息、最小误块率信息、允许的第一类资源的信息、允许的第二类资源的信息、允许的调制编码方案MCS表的信息和允许的空口的信息，其中，所述第一类资源为网络设备预先配置的资源，所述第二类资源为半静态调度资源或动态调度资源。
  25. 根据权利要求24所述的装置，其特征在于，所述发送模块，还用于：
    向所述终端设备发送物理下行控制信道PDCCH，所述PDCCH中包括传输资源的信息和宽带部分BWP的标识，所述BWP的标识用于指示所述终端设备切换到所述BWP的标识对应的BWP。
  26. 根据权利要求24或25所述的装置，其特征在于，所述发送模块，还用于：
    向所述终端设备发送BWP激活定时器的配置信息，所述BWP激活定时器用于在超时后控制所述终端设备从当前BWP切换到默认BWP或者初始BWP，所述初始BWP为所述终端设备用于初始接入的BWP。
  27. 根据权利要求24-26任一项所述的装置，其特征在于，所述发送模块，还用于：
    向所述终端设备发送所述业务信息与载波上的资源池/第三传输参数的第二对应关系，所述载波上的多个资源池与多个区域标识对应，每个区域关联多个资源池，每个区域关联的多个资源池对应的传输参数不同，且多个区域关联的资源池没有重叠，所述第三传输参数关联所述第一传输参数，或者，所述第三传输参数属于所述第一传输参数。
  28. 根据权利要求24-26任一项所述的装置，其特征在于，所述发送模块，还用于：
    向所述终端设备发送所述业务信息与子信道/第四传输参数的第三对应关系，其中，载波上包括多个资源池，每个资源池包括多个子信道，每个资源池包括的多个子信道对应的传输参数不同，所述第四传输参数关联所述第一传输参数，或者，所述第四传输参数属于所述第一传输参数。
  29. 一种终端设备，其特征在于，包括：处理器、存储器和收发器，所述存储器用于存储指令，所述收发器用于和其他设备通信，所述处理器用于执行所述存储器中存储的指令，以使所述终端设备执行如权利要求1-9任一项所述的方法。
  30. 一种网络设备，其特征在于，包括：处理器、存储器和收发器，所述存储器用于存储指令，所述收发器用于和其他设备通信，所述处理器用于执行所述存储器中存储的指令，以使所述网络设备执行如权利要求10-14任一项所述的方法。
  31. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有指令，当所述指令被执行时，使得计算机执行如权利要求1-9任一项所述的方法。
  32. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有指令，当所述指令被执行时，使得计算机执行如权利要求10-14任一项所述的方法。
  33. 一种芯片***，包括至少一个处理器，其特征在于，所述至少一个处理器执行指令，以执行如权利要求1-14中任一项所述的方法。
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