WO2020192776A1 - 通信方法和装置 - Google Patents

通信方法和装置 Download PDF

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Publication number
WO2020192776A1
WO2020192776A1 PCT/CN2020/081877 CN2020081877W WO2020192776A1 WO 2020192776 A1 WO2020192776 A1 WO 2020192776A1 CN 2020081877 W CN2020081877 W CN 2020081877W WO 2020192776 A1 WO2020192776 A1 WO 2020192776A1
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WIPO (PCT)
Prior art keywords
link
drb
data packet
terminal device
configuration information
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PCT/CN2020/081877
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English (en)
French (fr)
Inventor
李翔宇
肖潇
彭文杰
王君
戴明增
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP20778819.1A priority Critical patent/EP3937565A4/en
Publication of WO2020192776A1 publication Critical patent/WO2020192776A1/zh
Priority to US17/485,877 priority patent/US20220015107A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0252—Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • H04W28/0263—Traffic management, e.g. flow control or congestion control per individual bearer or channel involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/543—Allocation or scheduling criteria for wireless resources based on quality criteria based on requested quality, e.g. QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • 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
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • 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
    • 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]
    • H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • This application relates to the field of communication, and in particular to a communication method and device.
  • the Internet of Vehicles (vehicle to everything, V2X) is considered to be one of the areas with the most industrial potential and the clearest market demand in the Internet of Things system.
  • the V2X communication architecture includes a first terminal device 11, a second terminal device 12, a network device 13, and a V2X application server 14.
  • the communication system includes two communication interfaces-V2X PC5 interface and V2X Uu interface.
  • the V2X PC5 interface is the direct communication interface between the first terminal device 11 and the second terminal device 12, and the corresponding direct communication link can be It is called a side link or a side link (SL);
  • the V2X Uu interface is a communication interface between the first terminal device 11 or the second terminal device 12 and the network device 13.
  • the terminal device as the receiving end can be based on the layer 2 source identifier (source L2 ID), layer 2 destination identification (destination L2 ID) and logical channel identification (logical channel identification, LCH ID) transfer the V2X data packet from the sender to the corresponding upper layer protocol stack for processing.
  • source L2 ID layer 2 source identifier
  • destination L2 ID layer 2 destination identification
  • LCH ID logical channel identification
  • the SL DRB of the new radio (NR) V2X can be configured by the network device 13, and the first terminal device 11 and the second terminal device 12 need to exchange the configuration information of the SL DRB for unicast communication. If the configuration information of the SL DRB stored in the terminal device cannot map the new V2X data packet to the corresponding SL DRB, the service transmission delay on the SL will be affected.
  • NR new radio
  • the embodiments of the application provide a communication method and device for terminal equipment to configure the default DRB, so that when the V2X data packet cannot be mapped to the corresponding DRB according to the configuration information of the DRB, it is mapped to the default DRB without increasing the service transmission delay .
  • a communication method including: a first terminal device obtains configuration information of a default data radio bearer DRB of a first link, where the first terminal device is the sender of the first Internet of Vehicles V2X data packet,
  • the first link is a direct wireless communication link between the first terminal device and other terminal devices;
  • the first terminal device maps the first V2X data packet that meets the preset condition to the default DRB of the first link, where: Satisfying the preset condition includes that the first terminal device fails to match the DRB of the V2X data packet to the first link.
  • the configuration information of the default DRB of the first link includes first indication information and parameter information of the V2X data packet corresponding to the default DRB of the first link.
  • the first indication information is used to indicate that the configuration information is the first link.
  • the first terminal device obtains the configuration information of the default DRB of the first link, and the first terminal device is the sender of the first V2X data packet.
  • the first terminal device maps the first V2X data packet that meets the preset condition to the default DRB of the first link. Wherein, meeting the preset condition includes that the first terminal device fails to match the DRB of the first V2X data packet to the first link.
  • the first terminal device as the sender fails to match the first V2X data packet to the DRB of the first link
  • the first V2X data packet is mapped to the default DRB of the first link.
  • the first V2X data packet is transmitted on the DRB by default.
  • the terminal device is configured with the default DRB so that the terminal device cannot map the V2X data packet to the corresponding DRB according to the configuration information of the DRB, and it is mapped to the default DRB. Therefore, the terminal device does not need to interact with the network device to obtain the corresponding DRB. Configure information to reduce service transmission delay.
  • the first terminal device fails to match the DRB of the V2X data packet to the first link, including: the first terminal device cannot match the same V2X data packet parameter in the stored DRB mapping rule Information; where the DRB mapping rule includes parameter information of the V2X data packet corresponding to the DRB, and the DRB of the first link includes the DRB that can be mapped out by the stored DRB mapping rule.
  • the first terminal device acquiring the configuration information of the default data radio bearer DRB of the first link includes: the first terminal device receives the configuration information of the default DRB of the first link from the first network device , And/or, the first terminal device stores the preconfigured default DRB configuration information of the first link.
  • the method further includes: the priority of the default DRB configuration information of the first link received by the first terminal device from the first network device is higher than that of the first link pre-configured in the first terminal device The priority of the default DRB configuration information.
  • This implementation manner enables the first terminal device to update the configuration information of the default DRB of the first link stored in the first terminal device according to the configuration information of the default DRB of the first link from the first network device.
  • the configuration information of the default DRB of the first link includes DRB configuration information required by the sender of the V2X data packet, and/or DRB configuration information required by the receiver of the V2X data packet.
  • the configuration information of the default DRB of the first link includes DRB configuration information required by the sending end of the V2X data packet, and/or DRB configuration information required by the receiving end of the V2X data packet, including: V2X data packets are multicast or broadcast data packets, and the default DRB configuration information of the first link includes the DRB configuration information required by the sender of the V2X data packet; or, the V2X data packet is a unicast data packet, and the configuration information of the first link
  • the configuration information of the default DRB includes the DRB configuration information required by the sender of the V2X data packet and the DRB configuration information required by the receiver of the V2X data packet.
  • the method further includes: the first terminal device sends the DRB configuration information required by the receiving end of the V2X data packet to the second terminal device; or, the first terminal device sends the V2X data packet to the second terminal device DRB configuration information required by the sending end and DRB configuration information required by the receiving end of the V2X data packet; wherein, the second terminal device is the receiving end of the first V2X data packet. That is, the configuration information of the default DRB of the first link can be used for one-way communication and two-way communication between the first terminal device and the second terminal device, so that the second terminal device can learn the DRB configuration information required by the sender of the V2X data packet and DRB configuration information required by the receiving end of the V2X data packet.
  • the first terminal device sends the DRB configuration information required by the receiving end of the V2X data packet to the second terminal device, and further includes: the second terminal device satisfies the preset according to the default DRB reception of the first link The first V2X packet of the condition.
  • the first terminal device sends the DRB configuration information required by the sending end of the V2X data packet and the DRB configuration information required by the receiving end of the V2X data packet to the second terminal device, and further includes: the second terminal device It is also the sender of the second V2X data packet, the first terminal device is also the receiver of the second V2X data packet; the second terminal device maps the second V2X data packet that meets the preset conditions to the default DRB of the first link ; The first terminal device receives a second V2X data packet that meets a preset condition according to the default DRB of the first link. That is, the first terminal device can not only serve as the sender of V2X data packets, but also can serve as the receiver of V2X data packets.
  • the V2X data packet has parameter information
  • the parameter information includes at least one of QoS parameters, communication type information, target address identification information, connection identification information, and resource configuration mode information.
  • the QoS parameters include at least one of the following information: QoS flow identifier, PC5 port fifth-generation communication system service quality identifier PQI, car networking communication system service quality identifier VQI, fifth-generation communication system Quality of service identification 5QI, guaranteed flow bit rate GFBR, maximum flow bit rate MFBR, minimum required communication distance, allocation and reservation priority ARP.
  • the QoS parameters, target address identification information, and communication type information are parameter information associated with V2X data packets;
  • the communication type information includes at least one of broadcast communication, multicast communication, and unicast communication.
  • the connection identification information is determined by the first terminal device according to the target address identification information associated with the V2X data packet;
  • the resource configuration mode information includes the first resource configuration mode, and/or the second resource configuration mode, where the first One resource configuration mode includes: the first network device configures the first link transmission resource for the first terminal device, and the second resource configuration mode includes: the first terminal device selects the first link transmission resource.
  • the configuration information of the default DRB of the first link further includes at least one of the following information: first indication information, identification information of the default DRB of the first link, and identification information of the default DRB of the first link.
  • the configuration information of each protocol layer of the default DRB of the first link includes the service data adaptation protocol SDAP layer configuration of the default DRB of the first link, the packet data convergence protocol PDCP layer configuration, and wireless
  • the link controls at least one of RLC layer configuration, logical channel LCH configuration, and RLC channel configuration.
  • the first terminal device maps the first V2X data packet that meets the preset condition to the default DRB of the first link, including: the first terminal device will have the default DRB of the first link
  • the first V2X data packet that has the parameter information of the corresponding V2X data packet and meets the preset condition is mapped to the default DRB of the first link.
  • This embodiment further restricts that the first V2X data packet must not only meet the preset condition, but also have the parameter information of the V2X data packet corresponding to the default DRB of the first link before it can be mapped to the default DRB of the first link. .
  • the method further includes: the first terminal device sends to the second network device at least one piece of information in the parameter information of the V2X data packet that has been mapped to the default DRB of the first link.
  • This implementation manner can trigger the second network device to update the DRB configuration information of the first link in the first terminal device according to the foregoing information.
  • the method further includes: the first terminal device receives the mapping rule of the V2X data packet from the second network device to the DRB of the first link and the configuration information of the DRB of the first link,
  • the mapping rule of the V2X data packet to the DRB of the first link includes at least one of the following information: identification information of the DRB of the first link, and parameter information of the V2X data packet corresponding to the DRB of the first link;
  • the configuration information of the DRB of the first link includes the identification information of the DRB of the first link and the configuration information of each protocol layer of the DRB of the first link.
  • a communication method including: a first network device determines the configuration information of a default data radio bearer DRB of a first link, where the first link is the connection between the first terminal device and other terminal devices Directly connected to the wireless communication link, the first terminal device is the sender of the first vehicle networking V2X data packet; the first network device sends the configuration information of the default DRB of the first link to the first terminal device.
  • the communication method provided in the embodiments of the present application provides configuration information that the first network device can configure the default DRB of the first link in the first terminal device.
  • the priority of the configuration information of the default DRB of the first link sent by the first network device to the first terminal device is higher than the default DRB of the first link pre-configured in the first terminal device The priority of the configuration information.
  • This implementation manner enables the first terminal device to update the configuration information of the default DRB of the first link stored in the first terminal device according to the configuration information of the default DRB of the first link from the first network device.
  • a communication method which includes: a second network device receives from a first terminal device at least one piece of parameter information of a car networking V2X data packet of a default data radio bearer DRB that has been mapped to the first link , Where the first terminal device is the sender of the first V2X data packet, the first link is the direct wireless communication link between the first terminal device and other terminal devices; the second network device is based on at least one of the parameter information One piece of information determines the mapping rule of the V2X data packet to the DRB of the first link and the configuration information of the DRB of the first link.
  • the mapping rule of the V2X data packet to the DRB of the first link includes at least one of the following information: The identification information of the DRB of a link, the parameter information of the V2X data packet that has a corresponding relationship with the DRB of the first link; the configuration information of the DRB of the first link includes the identification information of the DRB of the first link and the first link Configuration information of each protocol layer of the DRB of the road.
  • the communication method provided by the embodiment of the present application enables the network device to be the first terminal device according to at least one of the parameter information of the vehicle networking V2X data packet of the default data radio bearer DRB that has been mapped to the first link.
  • the terminal device configures the mapping rule of the V2X data packet to the DRB of the first link and the configuration information of the DRB of the first link.
  • the method further includes: the second network device sends a mapping rule of the V2X data packet to the DRB of the first link and the configuration information of the DRB of the first link to the first terminal device.
  • a communication method including: a terminal device obtains configuration information of a default quality of service QoS rule of a first link, where the first link is direct wireless communication between the terminal device and other terminal devices Link; according to the configuration information, the terminal device maps the first link data packet that fails to match the QoS rule of the first link to the V2X QoS flow corresponding to the default QoS rule of the first link, where the V2X QoS flow is associated with QoS parameter.
  • the terminal device obtains the configuration information of the default QoS rule of the first link, and the terminal device will match the first link whose QoS rule of the first link fails according to the configuration information
  • the data packet is mapped to the V2X QoS flow corresponding to the default QoS rule of the first link.
  • the terminal device does not need to interact with the network device to obtain the configuration information of the corresponding QoS rule, and therefore, the service transmission delay will not be increased.
  • the QoS parameters include at least one of the following information: QoS flow identifier, PC5 port fifth-generation communication system service quality identifier PQI, car networking communication system service quality identifier VQI, fifth-generation communication system Quality of service identification 5QI, guaranteed flow bit rate GFBR, maximum flow bit rate MFBR, minimum required communication distance, allocation and reservation priority ARP.
  • it further includes: all the QoS rules of the first link and the default QoS rule of the first link have priority values, wherein the default QoS rule of the first link has the largest priority value .
  • the default QoS rule of the first link can filter all the first link data packets, and the first link data packet is mapped to the default QoS rule of the first link.
  • V2X QoS flow This embodiment makes it possible to always match the default QoS rule of the first link when the data packet of the first link cannot match the QoS rule of the first link.
  • the method further includes: the terminal device sends QoS parameters to the network device, where the QoS parameters are used by the network device to configure the DRB of the first link for the terminal device, and/or the first link
  • the default DRB of the first link is used to map the V2X QoS flow that meets the preset condition, and the satisfaction of the preset condition includes the failure of matching the V2X QoS flow to the DRB of the first link.
  • This implementation manner can enable the network device to configure the DRB of the first link and/or the default DRB of the first link for the terminal device according to the QoS parameters of the QoS flow matching the default QoS rule.
  • the method further includes: the terminal device receives the DRB of the first link from the network device, and/or the configuration information of the default DRB of the first link, and the terminal device transfers the DRB of the first link
  • the V2X QoS flow corresponding to the default QoS rule of the road is mapped to the DRB of the first link, and/or the default DRB of the first link.
  • the terminal device obtains the configuration information of the default quality of service QoS rule of the first link, including any one or more of the following: the terminal device obtains the configuration information from the V2X control network element or the core network device , And/or, the terminal device stores pre-configured configuration information.
  • the terminal device further includes: the priority of the configuration information acquired by the terminal device from the V2X control network element or the core network device is higher than the priority of the configuration information pre-configured in the terminal device.
  • This implementation manner enables the terminal device to update the pre-configured configuration information according to the configuration information obtained from the V2X control network element or the core network device.
  • a communication method including: a network device obtains the QoS parameters associated with the V2X quality of service QoS flow of the Internet of Vehicles, where the V2X QoS flow corresponds to the default QoS rule of the first link, and the V2X QoS flow is used for mapping The first link data packet where the QoS rule of the first link fails; the network device configures the data radio bearer DRB of the first link for the terminal device according to the QoS parameters, and/or the default DRB of the first link, where, The default DRB of the first link is used to map the V2X QoS flow that meets the preset conditions.
  • Satisfying the preset conditions includes the failure of matching the V2X QoS flow to the DRB of the first link, where the first link is the terminal device and other terminal devices Directly connected wireless communication link between.
  • the terminal device obtains the configuration information of the default QoS rule of the first link, and the terminal device will match the first link whose QoS rule of the first link fails according to the configuration information
  • the data packet is mapped to the V2X QoS flow corresponding to the default QoS rule of the first link.
  • the terminal device does not need to interact with the network device to obtain the configuration information of the corresponding QoS rule, and therefore, the service transmission delay will not be increased.
  • the QoS parameters include at least one of the following information: QoS flow identifier, PC5 port fifth-generation communication system service quality identifier PQI, car networking communication system service quality identifier VQI, fifth-generation communication system Quality of service identification 5QI, guaranteed flow bit rate GFBR, maximum flow bit rate MFBR, minimum required communication distance, allocation and reservation priority ARP.
  • the network device acquiring the QoS parameters associated with the IoV V2X quality of service QoS flow includes: the network device receives the QoS parameter from the terminal device, or the network device receives the QoS parameter from the core network device.
  • the first link data packet is an Internet protocol or an Ethernet data packet.
  • a terminal device including: a processing module and a transceiver module; used to execute the communication method described in the first aspect and any one of its implementation manners.
  • the processing module is used to obtain the configuration information of the default data radio bearer DRB of the first link, where the first terminal device is the sender of the first car networking V2X data packet, and the first link is the first terminal device and other Directly connected wireless communication link between terminal devices; the processing module is also used to map the first V2X data packet that meets the preset condition to the default DRB of the first link, where meeting the preset condition includes the first terminal device matching The DRB of the first V2X data packet to the first link fails.
  • a network device including: a processing module and a transceiver module; used to execute the communication method described in the second aspect and any one of its implementation manners.
  • the processing module is used to determine the configuration information of the default data radio bearer DRB of the first link, where the first link is a direct wireless communication link between the first terminal device and other terminal devices, and the first terminal device It is the sending end of the first Internet of Vehicles V2X data packet; the transceiver module is used to send the configuration information of the default DRB of the first link to the first terminal device.
  • a network device including: a processing module and a transceiver module; used to execute the communication method described in the third aspect and any one of its implementation manners.
  • the transceiver module is configured to receive from the first terminal device at least one piece of parameter information of the car networking V2X data packet of the default data radio bearer DRB that has been mapped to the first link, where the first terminal device is the first V2X At the sending end of the data packet, the first link is a direct wireless communication link between the first terminal device and other terminal devices; the processing module is used to determine the V2X data packet to the first link according to at least one piece of information in the parameter information The DRB mapping rule of the first link and the configuration information of the DRB of the first link.
  • the mapping rule of the V2X data packet to the DRB of the first link includes at least one of the following information: the identification information of the DRB of the first link, and the first link
  • the DRB of a link has the parameter information of the corresponding V2X data packet;
  • the configuration information of the DRB of the first link includes the identification information of the DRB of the first link and the configuration information of each protocol layer of the DRB of the first link.
  • a terminal device including: a processing module and a transceiver module; used to execute the communication method described in the fourth aspect and any one of its implementation manners.
  • the processing module is used to obtain the configuration information of the default quality of service QoS rule of the first link, where the first link is a direct wireless communication link between the terminal device and other terminal devices; the processing module is also used to The configuration information maps the first link data packet that fails to match the QoS rule of the first link to the V2X QoS flow corresponding to the default QoS rule of the first link, where the V2X QoS flow is associated with QoS parameters.
  • a network device including: a processing module and a transceiver module; used to execute the communication method described in the fifth aspect and any one of its implementation manners.
  • the processing module is used to obtain the QoS parameters associated with the V2X Quality of Service QoS flow of the Internet of Vehicles, where the V2X QoS flow corresponds to the default QoS rule of the first link, and the V2X QoS flow is used to map and match the QoS rule of the first link that fails The first link data packet; the processing module is also used to configure the data radio bearer DRB of the first link for the terminal device according to the QoS parameters, and/or the default DRB of the first link, where the default DRB of the first link DRB is used to map V2X QoS flows that meet preset conditions. Meeting preset conditions includes matching V2X QoS flows to the DRB failure of the first link, where the first link is the direct wireless connection between the terminal device and other terminal devices. Communication link.
  • a communication device including: a processor and a memory, the memory is used to store a program, and the processor calls the program stored in the memory to make the communication device execute as described in the first aspect and any of the embodiments thereof. Or implement the communication method described in the fourth aspect and any one of its implementation manners.
  • a communication device including: a processor and a memory, the memory is used to store a program, and the processor calls the program stored in the memory to make the communication device execute as described in the second aspect and any of the embodiments thereof.
  • the communication method described above either implements the communication method described in the third aspect and any one of its implementation manners, or implements the communication method described in the fifth aspect and any one of the implementation manners.
  • a computer-readable storage medium stores instructions.
  • the instructions run on a computer or a processor, the computer or the processor executes the operations as described in the first aspect to the first aspect.
  • the five aspects and the communication method in any possible implementation manner thereof.
  • a computer program product containing instructions is provided, when the instructions are run on a computer or a processor, the computer or the processor executes the first to fifth aspects and any possible implementation thereof The communication method in the mode.
  • a communication system which includes the terminal device according to the sixth aspect and the network device according to the seventh or eighth aspect, or includes the terminal device according to the ninth aspect and The network device according to the tenth aspect, or includes the communication device according to the eleventh aspect and the communication device according to the twelfth aspect.
  • a chip system in a sixteenth aspect, includes a processor for a communication device to execute the communication method as in the first aspect to the fifth aspect and any one of its possible implementation manners.
  • the technical effects of the sixth aspect to the sixteenth aspect may refer to the content of the various possible implementation manners of the first aspect to the fifth aspect.
  • FIG. 1 is a schematic diagram of the architecture of a car networking system provided by an embodiment of the application
  • FIG. 2 is a schematic diagram of the architecture of a communication system provided by an embodiment of this application.
  • FIG. 3 is a first structural diagram of a terminal device according to an embodiment of the application.
  • FIG. 4 is a first structural diagram of a network device provided by an embodiment of this application.
  • FIG. 5 is a first schematic flowchart of a communication method provided by an embodiment of this application.
  • FIG. 6 is a second schematic flowchart of a communication method provided by an embodiment of this application.
  • FIG. 7 is a third schematic flowchart of a communication method provided by an embodiment of this application.
  • FIG. 8 is a first schematic flowchart of another communication method provided by an embodiment of this application.
  • FIG. 9 is a second schematic flowchart of another communication method provided by an embodiment of this application.
  • FIG. 10 is a second schematic structural diagram of a terminal device provided by an embodiment of this application.
  • FIG. 11 is a second structural diagram of a network device provided by an embodiment of this application.
  • the embodiments of this application rely on the V2X scenario of the fifth generation (5G) communication network in the wireless communication network. It should be pointed out that the solutions in the embodiments of this application can also be applied to other wireless communication networks.
  • the name can also be replaced with the name of the corresponding function in other wireless communication networks.
  • LTE long term evolution
  • NB-IoT narrowband internet of things
  • LTE advanced, LTE- A advanced long term evolution
  • GSM global system for mobile communication
  • UMTS mobile communication system
  • CDMA code division multiple access
  • the communication system 100 includes a network device 101 and at least two terminal devices 102-107.
  • it may also include a V2X application server.
  • the communication system includes two communication interfaces-V2X PC5 interface and V2X Uu interface.
  • the V2X PC5 interface is a direct communication interface between the terminal devices 102-107, and the corresponding direct communication link may be called a side link or a side link (SL).
  • the V2X Uu interface is the communication interface between the terminal device 102-107 and the network device 101.
  • the terminal device of the sender sends V2X data to the network device 101 through the V2X Uu interface, and the network device 101 forwards it to the V2X application server for processing.
  • the V2X application server sends it to the network device 101, and sends it to the terminal device of the recipient through the network device 101.
  • the network device 101 that forwards uplink data and the network device 101 that forwards downlink data may be the same network device or different network devices, which may be specifically determined by the V2X application server.
  • the terminal device involved in the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
  • a wireless terminal can communicate with one or more core networks via a radio access network (RAN).
  • the wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal For example, they can be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the wireless access network.
  • Wireless terminal can also be called system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, Remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), user equipment (user device), or user equipment (user equipment).
  • the terminal device may be a high-speed rail communication device 102, a smart air conditioner 103, a smart tanker 104, a mobile phone 105, a smart teacup 106, a printer 107, etc., which are not limited in this application.
  • the network device involved in the embodiments of this application may be a base station, which can be used to convert received air frames and Internet protocol (IP) packets to each other, and act as a router between the wireless terminal and the rest of the access network , Where the rest of the access network can include IP network equipment.
  • the base station can also coordinate the attribute management of the air interface.
  • the base station can be a base transceiver station (BTS) in GSM or CDMA, a base station (NodeB) in wideband code division multiple access (WCDMA), or an evolution in LTE
  • BTS base transceiver station
  • NodeB base station
  • WCDMA wideband code division multiple access
  • a type base station evolutional Node B, eNB or e-NodeB
  • the terminal device is taken as an example of a mobile phone to describe the structure of the terminal device.
  • the terminal device 105 may include: a radio frequency (RF) circuit 110, a memory 120, an input unit 130, a display unit 140, a sensor 150, an audio circuit 160, a wireless fidelity (Wi-Fi) module 170, and a processor 180, Bluetooth module 181, and power supply 190 and other components.
  • RF radio frequency
  • the RF circuit 110 can be used for receiving and sending signals in the process of sending and receiving information or talking. It can receive the downlink data of the base station and then transfer it to the processor 180 for processing; it can send the uplink data to the base station.
  • the RF circuit includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and other devices.
  • the memory 120 can be used to store software programs and data.
  • the processor 180 executes various functions and data processing of the terminal device 105 by running a software program or data stored in the memory 120.
  • the memory 120 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the memory 120 stores an operating system that enables the terminal device 105 to run, such as the one developed by Apple Operating system, developed by Google Open source operating system, developed by Microsoft Operating system, etc.
  • the memory 120 may store an operating system and various application programs, and may also store codes for executing the methods described in the embodiments of the present application.
  • the input unit 130 may be used to receive input digital or character information, and generate signal input related to user settings and function control of the terminal device 105.
  • the input unit 130 may include a touch screen 131 provided on the front of the terminal device 105, and may collect user touch operations on or near it.
  • the display unit 140 (ie, the display screen) may be used to display information input by the user or information provided to the user, and a graphical user interface (GUI) of various menus of the terminal device 105.
  • the display unit 140 may include a display screen 141 provided on the front of the terminal device 105. Among them, the display screen 141 may be configured in the form of a liquid crystal display, a light emitting diode, or the like.
  • the display unit 140 may be used to display various graphical user interfaces described in this application.
  • the touch screen 131 may be overlaid on the display screen 141, or the touch screen 131 and the display screen 141 may be integrated to realize the input and output functions of the terminal device 105. After integration, it may be referred to as a touch display screen.
  • the terminal device 105 may also include at least one sensor 150, such as a light sensor and a motion sensor.
  • the terminal device 105 may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor.
  • the audio circuit 160, the speaker 161, and the microphone 162 can provide an audio interface between the user and the terminal device 105.
  • the audio circuit 160 can transmit the electrical signal converted from the received audio data to the speaker 161, which is converted into a sound signal for output by the speaker 161; on the other hand, the microphone 162 converts the collected sound signal into an electrical signal, and the audio circuit 160 After being received, it is converted into audio data, and then the audio data is output to the RF circuit 110 to be sent to, for example, another terminal, or the audio data is output to the memory 120 for further processing.
  • Wi-Fi is a short-distance wireless transmission technology.
  • the terminal device 105 can help users send and receive e-mails, browse web pages, and access streaming media through the Wi-Fi module 170. It provides users with wireless broadband Internet access.
  • the processor 180 is the control center of the terminal device 105. It uses various interfaces and lines to connect the various parts of the entire terminal, and executes the terminal device by running or executing the software program stored in the memory 120 and calling the data stored in the memory 120. 105 various functions and processing data.
  • the processor 180 may include one or more processing units; the processor 180 may also integrate an application processor and a baseband processor.
  • the application processor mainly processes the operating system, user interface, and application programs.
  • the processor mainly deals with wireless communication. It can be understood that the aforementioned baseband processor may not be integrated into the processor 180.
  • the processor 180 in this application can run an operating system, application programs, user interface display and touch response, and the communication method described in the embodiments of this application.
  • the Bluetooth module 181 is used for information interaction with other Bluetooth devices with Bluetooth modules through the Bluetooth protocol.
  • the terminal device 105 can establish a Bluetooth connection with a wearable electronic device (such as a smart watch) that also has a Bluetooth module through the Bluetooth module 181, so as to perform data interaction.
  • a wearable electronic device such as a smart watch
  • the terminal device 105 also includes a power source 190 (such as a battery) for supplying power to various components.
  • the power supply can be logically connected to the processor 180 through the power management system, so that functions such as charging, discharging, and power consumption can be managed through the power management system.
  • the network device 200 includes: at least one processor 201, at least one memory 202, and at least one communication interface 203. Among them, at least one processor 201, at least one memory 202, and at least one communication interface 203 may be connected by a bus.
  • the memory 202 is used to store computer program codes.
  • the processor 201 is configured to call the computer program code stored in the memory 202 to execute the functions of the network device in the following method embodiments.
  • the communication interface 203 is used to communicate with other communication devices such as terminal equipment.
  • the communication interface 203 can communicate in a wireless communication manner.
  • the terminal device in V2X communication, if the terminal device fails to match the stored configuration information of the DRB, and the configuration information of the DRB can map the V2X data packet stream to the corresponding DRB, the terminal device needs to interact with the network device to obtain The configuration information of the corresponding DRB can map the V2X data packet to the corresponding DRB, which increases the service transmission delay.
  • the communication method and terminal device provided in the embodiments of the application configure the configuration information of the default DRB for the terminal device. When the terminal device cannot map the V2X data packet to the corresponding DRB according to the configuration information of the existing DRB, it will follow the configuration of the default DRB The information maps the V2X data packet to the default DRB. Before the V2X data packet is transmitted on the default DRB, there is no need to interact with the network device to obtain the configuration information of the corresponding DRB. Therefore, the service transmission delay will not be increased.
  • the embodiment of the present application provides a communication method, which is applied to the above system.
  • the communication method includes:
  • S501 The first terminal device obtains configuration information of the default DRB of the first link.
  • the first terminal device is the sender of the first V2X data packet.
  • the first V2X data packet is submitted and transmitted from the upper layer to the access stratum (access stratum, AS).
  • the V2X data packet is at least one unicast data packet
  • the V2X data packet is at least one broadcast or multicast data packet.
  • the first link is a direct wireless communication link between the first terminal device and other terminal devices.
  • the first link may be a sidelink (SL), and the default DRB of the first link may be The default (default) SL DRB.
  • the default DRB of the first link is relative to the DRB of the first link:
  • the DRB of the first link refers to the DRB of the first link that can be mapped out by the DRB mapping rule configured in the first terminal device.
  • the DRB mapping rule includes the parameter information of the V2X data packet corresponding to the DRB, including QoS parameters (for example, QoS flow identifier, such as QFI or other identifiers that indicate this V2X data packet), communication type (cast type), destination address (destination ID) information, connection identification (connection ID) information, resource configuration mode information, etc. .
  • QoS parameters for example, QoS flow identifier, such as QFI or other identifiers that indicate this V2X data packet
  • communication type for example, QoS flow identifier, such as QFI or other identifiers that indicate this V2X data packet
  • communication type for example, QoS flow identifier, such as QFI or other identifiers that indicate this V2X data packet
  • communication type for example, QoS flow identifier, such as QFI or other identifier
  • the failure to match V2X data packets or V2X QoS flows in this application may mean that the terminal device does not store the corresponding DRB or QoS rule, or it may mean that the terminal device does not match any corresponding DRB Or QoS rule.
  • the execution subject of the matching or mapping action in this application may be the terminal device, or the upper layer of the terminal device, and the upper layer may include the application (APP) layer of the terminal device, the Internet of Vehicles (V2X) At least one of) layer and non-access stratum (Non-access stratum, NAS).
  • APP application
  • V2X Internet of Vehicles
  • NAS non-access stratum
  • the first terminal device For the configuration information of the default DRB that configures the first link when the connection is established, when the first terminal device has the first V2X data packet to be sent from the upper layer, there is no need to care whether the AS layer has the V2X data packet to the first link
  • the first V2X data packet of the upper layer will be directly delivered to the access stratum (AS).
  • the first terminal device will first match the first V2X data packet to the configured DRB of the first link, and when the matching fails, it will map the first V2X data packet to the default DRB of the first link for transmission.
  • the above matching failure can also be understood as the corresponding DRB of the first link is not stored.
  • the configuration information of the default DRB of the first link may include at least one of the following information: first indication information, identification information of the default DRB of the first link, configuration information of each protocol layer of the default DRB of the first link, Parameter information of the V2X data packet corresponding to the default DRB of the first link.
  • the first indication information is used to indicate that the configuration information is the configuration information of the default DRB of the first link.
  • the parameter information includes at least one of QoS parameters, communication type information, target address identification information, connection identification information, and resource configuration mode information.
  • the QoS parameters, target address identification information, and communication type information are parameter information associated with the V2X data packet.
  • the communication type information includes at least one of broadcast communication, multicast communication, and unicast communication.
  • the connection identification information is determined by the first terminal device according to the target address identification information associated with the V2X data packet.
  • the resource configuration mode information includes a first resource configuration mode, and/or a second resource configuration mode, where the first resource configuration mode includes: the first network device configures the first link transmission resource for the first terminal device;
  • the second resource configuration mode includes: the first terminal device selects the first link transmission resource.
  • the configuration information of each protocol layer of the default DRB of the first link may include: service data adaptation protocol (SDAP) layer configuration of the default DRB of the first link, packet data convergence protocol (packet data convergence protocol) , PDCP) layer configuration, radio link control (radio link control, RLC) layer configuration, logical channel (logical channel, LCH) configuration, and at least one of RLC channel configuration.
  • SDAP service data adaptation protocol
  • packet data convergence protocol packet data convergence protocol
  • PDCP packet data convergence protocol
  • RLC radio link control
  • LCH logical channel configuration
  • at least one of RLC channel configuration at least one of RLC channel configuration.
  • the SDAP layer configuration of the default DRB of the first link may include at least one of the following information: QoS parameters of the default DRB mapped to the first link (for example, QoS flow identifier, such as QFI or other identifiers that indicate this V2X data packet) ), communication type (cast type), destination address (destination ID) information, connection identification (connection ID) information, resource configuration mode information, etc.
  • the QoS parameter may include at least one of the following information: for example, QoS flow identity (QFI), 5G QoS identifier (5QI) of the fifth-generation communication system, and quality of service identifier ( V2X QoS identifier, VQI), PC5 port fifth-generation communication system quality of service identifier (PC5 QoS identifier, PQI), guaranteed flow bit rate (GFBR), maximum flow bit rate (MFBR) , The minimum required communication distance (minimum required communication range, range), allocation and retention priority (allocation and retention priority, ARP), etc.
  • QFI QoS flow identity
  • 5QI quality of service identifier
  • V2X QoS identifier, VQI quality of service identifier
  • PC5 QoS identifier PC5 port fifth-generation communication system quality of service identifier
  • GFBR guaranteed flow bit rate
  • MFBR maximum flow bit rate
  • V2X data packets may include V2X data packets that have not been mapped by QoS rules (for example, identified by PQI) and V2X data packets that have been mapped by QoS rules (for example, identified by QFI).
  • QoS rules for example, identified by PQI
  • QFI QoS rules
  • the first indication information may be located in the SDAP layer configuration of the default DRB of the first link.
  • the PDCP layer configuration may include at least one of the following information: a timer (discardTimer) used to control the storage time of a PDCP service data unit (SDU) in the PDCP cache; used in the reordering function Timer for waiting for out-of-order data packets (t-Reordering); whether the PDCP layer can deliver data packets out of order to the upper layer; whether the PDCP layer uses SL data compression, and the related configuration of SL data compression, such as compressing the size of the buffer and compression
  • the length of the sequence number (SN) used by the PDCP layer PDU the security configuration used by the PDCP entity, including whether to use encryption and/or integrity protection; the security algorithm used by the PDCP entity (integrity protection algorithm and encryption Algorithm) and/or key, etc.; whether PDCP adopts a duplication mechanism and a replication configuration.
  • the PDCP entity will correspond to two or more RLC entities and LCH.
  • the duplication mechanism here refers to the PDCP entity
  • the PDCP PDU is copied and delivered to two or more RLC entities associated for processing and transmission; the relevant configuration of the PDCP layer header compression algorithm, such as whether to use header compression, etc.
  • the RLC configuration may include at least one of the following information: the mode adopted by the RLC entity, for example, acknowledge mode (AM), unacknowledge mode (UM), and transparent mode (TM) mode.
  • the mode adopted by the RLC entity for example, acknowledge mode (AM), unacknowledge mode (UM), and transparent mode (TM) mode.
  • AM acknowledge mode
  • UM unacknowledge mode
  • TM transparent mode
  • the RLC layer configuration also includes at least one of the following information: the SN length of the RLC layer PDU, the timer that controls the initiation of polling (poll) retransmission (t-PollRetransmit), and how much to send
  • the parameter that needs to be polled after one RLC PDU (pollPDU)
  • the parameter that controls how many bytes are sent after the RLC PDU needs to be polled (pollByte)
  • maxRetxThreshold the maximum number of retransmissions at the RLC layer
  • polling means that the AM RLC entity at the transmitting end instructs the AM RLC entity at the receiving end to perform status report feedback through the polling bit in the MAC PDU.
  • the RLC layer configuration also includes at least one of the following information: the SN length of the RLC layer PDU, the timer that controls the RLC layer to wait for segmentation (t-Reassembly), and the RLC layer to avoid frequent transmissions Status report timer (t-StatusProhibit).
  • the RLC layer configuration also includes at least one of the following: the SN length of the RLC layer PDU. If the receiving RLC entity is configured to use the UM mode, the RLC layer configuration also includes at least one of the following information: the SN length of the RLC layer PDU, and a timer (t-Reassembly) that controls the RLC layer to wait for segmentation.
  • the LCH configuration may include at least one of the following information: LCH identifier, the identifier of the logical channel group to which the LCH belongs, and the relevant parameters for logical channel priority processing (priority, priority bit rate PBR, token bucket size duration), which can be transmitted
  • the carrier information of the data in the LCH can transmit the resource configuration mode information (mode 1 or mode 2, or mode 1 and mode 2) of the data in the LCH, and the numerology information (such as subcarrier interval, cycle Prefix length, resource time domain duration, whether it can be configured to authorize resources, etc.), control whether the LCH can trigger SR parameters (SR-mask), and control whether the LCH can delay triggering SR parameters (SR-DelayTimerApplied).
  • the first network device may determine the configuration information of the default DRB of the first link, and may also send the configuration information of the default DRB of the first link to the first terminal device. Accordingly, the first The terminal device may receive the configuration information of the default DRB of the first link from the first network device.
  • the first terminal device may send an SL DRB establishment request message to the first network device to request The SL DRB is established, or the first network receives the QoS profiles configured by the core network device (the configuration file includes the QoS parameters corresponding to the V2X data packet of the first terminal device), and the first network device sends the first The terminal device sends an SL DRB configuration message to configure the configuration information of the SL DRB, and the configuration information of the default SL DRB can be carried in the message.
  • the first terminal device may store the pre-configured default DRB configuration information of the first link.
  • the device manufacturer may store the configuration information of the default DRB of the first link in the first terminal device before the first terminal device leaves the factory, or the first terminal device may obtain the first link when accessing the network. The configuration information of the default DRB of the road.
  • the priority of the default DRB configuration information of the first link received by the first terminal device from the first network device is higher than The priority of the configuration information of the default DRB of the first link pre-configured in the first terminal device.
  • the configuration information of the default DRB of the first link sent by the first network device may be carried in system information broadcast or RRC dedicated signaling (for example, RRC reconfiguration (reconfigration) message).
  • the priority of the configuration information of the default DRB of the link is higher than the priority of the configuration information of the default DRB of the first link in the system information broadcast, and the priority of the configuration information of the default DRB of the first link in the system information broadcast is higher. The priority of the configuration information of the default DRB of the first link pre-configured in the first terminal device.
  • the first terminal device is pre-configured with the configuration information of the default DRB of the first link.
  • the first network device configures the first terminal device with a new first terminal device according to specific services.
  • the configuration information of the default DRB of a link will overwrite the configuration information of the default DRB of the first link pre-configured in the first terminal device, and the first terminal device will use the first network device to configure the new first link
  • the configuration information of the default DRB shall prevail.
  • the first terminal device maps the first V2X data packet that meets the preset condition to the default DRB of the first link.
  • meeting the preset condition includes that the first terminal device fails to match the DRB of the first V2X data packet to the first link.
  • the first terminal device may map the first V2X data packet that has the parameter information described in step S501 and meets the preset condition to the default DRB of the first link.
  • the first terminal device may map the first V2X data packet that has parameter information of the V2X data packet corresponding to the default DRB of the first link and meets the preset condition to the default DRB of the first link.
  • the first terminal device may subsequently implicitly indicate to the network device that there is data to be transmitted on the default DRB of the first link.
  • V2X data packets can be mapped to the same DRB.
  • multiple V2X data packets may be mapped to the same default DRB.
  • step S502 may be implemented at the SDAP layer of the first terminal device.
  • the first terminal device obtains the configuration information of the default DRB of the first link, and the first terminal device is the sender of the first V2X data packet.
  • the first terminal device maps the first V2X data packet that meets the preset condition to the default DRB of the first link.
  • meeting the preset condition includes that the first terminal device fails to match the DRB of the first V2X data packet to the first link. That is to say, when the first terminal device as the sender fails to match the first V2X data packet to the DRB of the first link, the first V2X data packet is mapped to the default DRB of the first link.
  • the first V2X data packet is transmitted on the DRB by default.
  • the terminal device is configured with the default DRB, so that when the V2X data packet cannot be mapped to the corresponding DRB according to the DRB configuration information, it is mapped to the default DRB. Therefore, the terminal device does not need to interact with the network device to obtain the corresponding DRB configuration information, thereby reducing Service transmission delay.
  • the method may further include:
  • S503 The first terminal device sends configuration information of the default DRB of the first link to the second terminal device.
  • the second terminal device is the receiving end of the first V2X data packet.
  • the first terminal device when the upper layer connection is established, can send the configuration information of the default DRB of the first link to the second terminal device through PC5-S signaling, and accordingly, the second terminal device
  • the confirmation message of the foregoing configuration information may be sent to the first terminal device through PC5-S signaling.
  • the first terminal device may send the default DRB of the first link to the second terminal device through an RRC connection establishment request message.
  • the configuration information correspondingly, the second terminal device may send the confirmation message of the configuration information to the first terminal device through the RRC connection establishment response message.
  • the first terminal device may send the configuration information of the default DRB of the first link to the second terminal device through an RRC reconfiguration message.
  • the second terminal device may send the above-mentioned configuration information to the first terminal device through an RRC reconfiguration response message. Confirmation message of configuration information.
  • the configuration information of the default DRB of the first link may include DRB configuration information required by the sending end of the V2X data packet, and/or DRB configuration information required by the receiving end of the V2X data packet.
  • the V2X data packet is a multicast or broadcast data packet
  • the DRB configuration information of the first link includes the DRB configuration information required by the sender of the V2X data packet.
  • the first terminal device can send to the second terminal device
  • the second terminal device may receive the first V2X data packet meeting the preset condition according to the default DRB of the first link.
  • the V2X data packet is a unicast data packet
  • the default DRB configuration information of the first link includes the DRB configuration information required by the sender of the V2X data packet and the DRB configuration information required by the receiver of the V2X data packet.
  • a terminal device can send to the second terminal device the DRB configuration information required by the sending end of the V2X data packet and the DRB configuration information required by the receiving end of the V2X data packet, and the second terminal device can send the second V2X data packet meeting the preset conditions
  • the priority of the DRB configuration information required by the sending end of the V2X data packet from the first terminal device and the DRB configuration information required by the receiving end of the V2X data packet is higher than that of the second terminal device.
  • the priority of the DRB configuration information required by the sending end of the V2X data packet and the DRB configuration information required by the receiving end of the V2X data packet configured in the terminal device may include the needs of the sender of the V2X data packet received by the second terminal device from the third network device.
  • the second terminal device may also be the sender of the second V2X data packet.
  • the first terminal device may also be the receiving end of the second V2X data packet.
  • the second terminal device may map the second V2X data packet meeting the preset condition to the default DRB of the first link; the first terminal device may receive the second V2X data packet meeting the preset condition according to the default DRB of the first link .
  • the default DRB of the first link between the first terminal device and the second terminal device may be unidirectional or bidirectional.
  • Bidirectional means that the default DRB of the first link is equally effective for data transmission from the first terminal device to the second terminal device or for data transmission from the second terminal device to the first terminal device.
  • the configuration information of the default DRB of the first link sent by the first terminal device to the second terminal device includes both the configuration parameters that need to be known on the first terminal device side and the configuration parameters that need to be known on the second terminal device side.
  • the second terminal device can send the configuration information of the default DRB of the first link to the network device to which it belongs, for example, the default DRB of the first link is the default SL DRB
  • the second terminal device may send the configuration information of the default DRB of the first link to the network device to which it belongs through an RRC message.
  • the second terminal device does not need to send the configuration information of the default DRB of the first link to the network device to which it belongs.
  • the configuration information of the default DRB of the first link pre-configured in the first terminal device is common to all terminal devices in the network, there is no need between the first terminal device and the second terminal device in unicast communication.
  • the configuration information of the default DRB of the first link is exchanged; otherwise, the first terminal device and the second terminal device of unicast communication need to exchange the configuration information of the default DRB of the first link on the first link.
  • the method may further include:
  • the first terminal device sends to the second network device at least one piece of information in the parameter information of the V2X data packet that has been mapped to the default DRB of the first link.
  • the second network device receives from the first terminal device at least one piece of information in the parameter information of the V2X data packet that has been mapped to the default DRB of the first link.
  • the first terminal device can report the configuration information of the default DRB of the first link to the second network device, triggering the second network device to instruct the second network device A terminal device updates the DRB configuration information of the first link.
  • the second network device determines the mapping rule of the V2X data packet to the DRB of the first link and the configuration information of the DRB of the first link according to at least one piece of information in the parameter information.
  • the mapping rule (QoS flow to DRB mapping rule) of the V2X data packet to the DRB of the first link includes at least one of the following information: the identification information of the DRB of the first link, and the DRB of the first link
  • the configuration information of the DRB of the first link includes the identification information of the DRB of the first link and the configuration information of each protocol layer of the DRB of the first link.
  • the mapping rule of the V2X data packet to the DRB of the first link and the configuration information of the DRB of the first link may be carried in an RRC message (for example, an SL DRB configuration update message).
  • the second network device sends the mapping rule of the V2X data packet to the DRB of the first link and the configuration information of the DRB of the first link to the first terminal device.
  • the first terminal device receives the mapping rule of the V2X data packet from the second network device to the DRB of the first link and the configuration information of the DRB of the first link.
  • the mapping rule of the V2X data packet to the DRB of the first link and the configuration information of the DRB of the first link are used to update the configuration information of the DRB of the first link configured in the first terminal device.
  • first network device and the second network device may be the same network device or different network devices.
  • the terminal device In V2X communication, if the terminal device is not configured to map the V2X QoS flow to the corresponding DRB configuration information, the terminal device needs to interact with the network device to obtain the corresponding DRB configuration information in order to map the V2X QoS flow to the corresponding DRB.
  • the DRB increases the service transmission delay.
  • the communication method and terminal device provided by the embodiments of this application configure the terminal device with the configuration information of the default DRB.
  • the terminal device cannot map the V2X data packet and/or the V2X QoS flow to the corresponding DRB according to the configuration information of the existing DRB
  • the V2X data packets are mapped to the default DRB according to the configuration information of the default DRB, and/or the V2X QoS flow is mapped to the default DRB
  • the V2X data packets are transmitted on the default DRB, and/or, there is no need to interact with the network device before the V2X QoS flow To obtain the configuration information of the corresponding DRB, therefore, the service transmission delay will not be increased.
  • the QoS rule can map the Internet protocol or Ethernet data packet to the corresponding V2X QoS flow, and the terminal device needs to interact with the network device to Only by obtaining the configuration information of the corresponding QoS rule can the Internet protocol or Ethernet data packet be mapped to the corresponding V2X QoS flow, which increases the service transmission delay.
  • the communication method and terminal device provided by the embodiments of this application configure the configuration information of the default QoS rule for the terminal device.
  • the terminal device cannot map the Internet protocol or Ethernet data packet to the corresponding or V2X QoS according to the configuration information of the existing QoS rule During the flow, the Internet protocol or Ethernet data packets are mapped to the V2X QoS flow corresponding to the default QoS rule according to the configuration information of the default QoS rule. There is no need to interact with the network device to obtain the configuration information of the corresponding QoS rule. Increase the service transmission delay.
  • an embodiment of the present application provides another communication method, and the method includes:
  • the terminal device obtains the configuration information of the default QoS rule (default QoS rule) of the first link.
  • the first link is a direct wireless communication link between the terminal device and other terminal devices.
  • the default QoS rule of the first link is relative to the QoS rule of the first link: the QoS rule of the first link can generally filter a first link data packet and map the first link data packet To the corresponding V2X QoS flow, but the default QoS rule of the first link can filter all the first link data packets and map the first link data packet to the V2X QoS flow corresponding to the default QoS rule of the first link , That is, the terminal device can always map the first link data packet to the V2X QoS flow associated with the QoS parameter.
  • the configuration information of the default QoS rule for the first link may include: QoS parameters associated with the V2X QoS flow, a set of packet filtering sets, and a priority value; a set of packet filtering sets includes one or more A data packet filtering criterion is used to select the first link data packet that meets the conditions; the priority value is the matching priority of the QoS rule, for example, when multiple QoS rules exist, the first link data packet priority and priority The QoS rule associated with the lower value matches.
  • the terminal device acquiring the configuration information of the default QoS rule of the first link may include any one or more of the following:
  • the terminal device may obtain the configuration information of the default QoS rule of the first link from the V2X control network element or the core network device.
  • the terminal device may obtain the configuration information of the default QoS rule of the first link through the V2X control network element or the core network device through an authorization and service provisioning procedure.
  • the V2X control network element or core network device configures some policies for the terminal device to configure the subset, which includes but is not limited to the configuration information of the default QoS rule of the first link , Can also include which carriers can be used, which areas can work in, etc., so that terminal equipment can use V2X services.
  • the terminal device may store pre-configured configuration information of the default QoS rule of the first link.
  • the terminal device may also be referred to as an upper layer of the terminal device, and the upper layer includes at least one of an application (APP) layer, a car networking (V2X) layer, and a non-access stratum (NAS).
  • APP application
  • V2X car networking
  • NAS non-access stratum
  • the priority of the configuration information of the default QoS rule of the first link obtained by the terminal device from the V2X control network element or the core network device is higher than that of the default QoS rule of the first link pre-configured in the terminal device. Priority of configuration information.
  • the terminal device is pre-configured with the configuration information of the default QoS rule of the first link.
  • the V2X control network element or core network device configures new terminal devices according to specific services.
  • the terminal device will be based on the configuration information of the new default QoS rule of the first link configured by the V2X control network element or core network device.
  • the terminal device maps the first link data packet that fails to match the QoS rule of the first link to the V2X QoS flow corresponding to the default QoS rule of the first link.
  • V2X QoS flow is associated with QoS parameters.
  • the first link data packet may be an internet protocol (Internet protocol, IP) or Ethernet (Ethernet) data packet.
  • IP internet protocol
  • Ethernet Ethernet
  • the QoS parameters include at least one of the following information: QoS flow identification, PQI, VQI, 5QI, guaranteed flow bit rate GFBR, MFBR, minimum required communication distance, ARP, etc.
  • the QoS rule of the first link and the default QoS rule of the first link have priority values, where the default QoS rule of the first link has the largest priority value.
  • the priority of the default QoS rule of the first link is lower than the priority of the QoS rule of the first link, and the default QoS rule of the first link is generally used for non-guaranteed bit rate (Non Guaranteed Bit Rate). -GBR) business.
  • the priority refers to the priority of the first link data packet matching the QoS rule of the first link or the default QoS rule of the first link.
  • the above matching failure can also be understood as the corresponding QoS rule of the first link is not stored.
  • the terminal device obtains the configuration information of the default QoS rule of the first link, and the terminal device will match the first link whose QoS rule of the first link fails according to the configuration information
  • the data packet is mapped to the V2X QoS flow corresponding to the default QoS rule of the first link.
  • the terminal device does not need to interact with the network device to obtain the configuration information of the corresponding QoS rule, and therefore, the service transmission delay will not be increased.
  • the method may further include:
  • the network device obtains QoS parameters associated with the V2X QoS flow.
  • the V2X QoS flow corresponds to the default QoS rule of the first link, and the V2X QoS flow is used to map the first link data packet that fails to match the QoS rule of the first link.
  • the terminal device may send the QoS parameter associated with the V2X QoS flow to the network device, and accordingly, the network device receives the QoS parameter associated with the V2X QoS flow from the terminal device.
  • the terminal device may send the QoS parameters associated with the V2X QoS flow to the network device in an RRC message (for example, a sidelinkUEinformation message, or another newly defined RRC message).
  • the network device receives the QoS parameters associated with the V2X QoS flow from the core network device.
  • the network device receives the QoS parameters associated with the V2X QoS flow from the core network device through a service authorization (Service Authorization) process.
  • Service Authorization Service Authorization
  • the network device configures the DRB of the first link and/or the default DRB of the first link for the terminal device according to the QoS parameters associated with the V2X QoS flow.
  • the default DRB of the first link is used to map the V2X QoS flow that meets the preset conditions, and meeting the preset conditions includes the failure of matching the V2X QoS flow to the DRB of the first link.
  • the first link is the terminal device and other Directly connected wireless communication links between terminal devices.
  • the network device may send the DRB of the first link, and/or the configuration information of the default DRB of the first link to the terminal device for adding DRB of the first link, and/or, the configuration information of the first link
  • the default DRB is used to complete the configuration information of the DRB of the first link configured in the terminal device, and/or the configuration information of the default DRB of the first link.
  • the terminal device receives the DRB of the first link and/or the configuration information of the default DRB of the first link from the network device.
  • the DRB of the first link configured by the network device for different terminal devices may be the same, or may be different for different terminal devices.
  • the methods and/or steps implemented by terminal devices can also be implemented by components (such as chips or circuits) that can be used in terminal devices, and the methods and/or steps implemented by network devices can also It can also be implemented by components that can be used in network devices.
  • an embodiment of the present application also provides a communication device, which is used to implement the foregoing various methods.
  • the communication device may be the terminal device, the first terminal device, the second terminal device in the foregoing method embodiment, or the device containing the foregoing terminal device, or a component that can be used for the foregoing terminal device; or, the communication device may be the foregoing
  • the communication device includes hardware structures and/or software modules corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiments of the present application may divide the communication device into functional modules according to the foregoing method embodiments.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 10 shows a schematic structural diagram of a terminal device 100.
  • the terminal device 100 includes a processing module 1001 and a transceiver module 1002.
  • the transceiver module 1002 may also be referred to as a transceiver unit to implement sending and/or receiving functions.
  • it may be a transceiver circuit, transceiver, transceiver, or communication interface.
  • the processing module 1001 is used to obtain the configuration information of the default data radio bearer DRB of the first link, where the first terminal device is the sender of the first car networking V2X data packet, and the first link is the first terminal device and other terminals Directly connected wireless communication link between devices; the processing module 1001 is also used to map the first V2X data packet that meets the preset condition to the default DRB of the first link, where the first terminal device matches the preset condition The DRB of the first V2X data packet to the first link fails.
  • the transceiver module 1002 is configured to receive configuration information of the default DRB of the first link from the first network device, and/or the processing module 1001 is further configured to store the configuration of the default DRB of the first link pre-configured information.
  • the priority of the configuration information of the default DRB of the first link received by the transceiver module 1002 from the first network device is higher than the priority of the configuration information of the default DRB of the first link preconfigured in the processing module 1001.
  • the configuration information of the default DRB of the first link includes DRB configuration information required by the sending end of the V2X data packet, and/or DRB configuration information required by the receiving end of the V2X data packet.
  • the configuration information of the default DRB of the first link includes the DRB configuration information required by the sender of the V2X data packet, and/or the DRB configuration information required by the receiver of the V2X data packet, including the V2X data packet as a group Broadcast or broadcast data packets
  • the configuration information of the default DRB of the first link includes the DRB configuration information required by the sender of the V2X data packet; or, the V2X data packet is a unicast data packet
  • the configuration information of the default DRB of the first link It includes the DRB configuration information required by the sender of the V2X data packet and the DRB configuration information required by the receiver of the V2X data packet.
  • the transceiver module 1002 is also used to send the DRB configuration information required by the receiving end of the V2X data packet to the second terminal device; or, the transceiver module 1002 is also used to send the V2X data packet required by the sending end to the second terminal device DRB configuration information and DRB configuration information required by the receiving end of the V2X data packet; wherein, the second terminal device is the receiving end of the first V2X data packet.
  • the transceiver module 1002 of the first terminal device sends the DRB configuration information required by the receiving end of the V2X data packet to the second terminal device, and further includes: the transceiver module 1002 of the second terminal device receives according to the default DRB of the first link The first V2X data packet that meets the preset conditions.
  • the transceiver module 1002 of the first terminal device sends the DRB configuration information required by the sending end of the V2X data packet and the DRB configuration information required by the receiving end of the V2X data packet to the second terminal device, and further includes: Is the sender of the second V2X data packet, the first terminal device is also the receiver of the second V2X data packet; the processing module 1001 of the second terminal device is also used to map the second V2X data packet that meets the preset conditions to the first The default DRB of a link; the transceiver module 1002 of the first terminal device is further configured to receive the second V2X data packet that meets the preset condition according to the default DRB of the first link.
  • the V2X data packet has parameter information, and the parameter information includes at least one of QoS parameters, communication type information, target address identification information, connection identification information, and resource configuration mode information.
  • the QoS parameters, target address identification information, and communication type information are parameter information associated with V2X data packets;
  • the communication type information includes at least one of broadcast communication, multicast communication, and unicast communication; connection identification information Is determined by the first terminal device according to the target address identification information associated with the V2X data packet;
  • the resource configuration mode information includes the first resource configuration mode, and/or the second resource configuration mode, where the first resource configuration mode includes :
  • the first network device configures the first link transmission resource for the first terminal device, for example, the first mode;
  • the second resource configuration mode includes: the first terminal device selects the first link transmission resource, which is exemplary , Is the second mode.
  • the SL communication resources for wireless direct communication between the two terminal devices can be scheduled by the network device.
  • the terminal device is Within the coverage of the network device, the wireless direct communication process between the terminal device and the terminal device is controlled by the network device.
  • the first terminal device as the data sending end may send control signals and data signals to the SL communication resources configured by the network device.
  • the second terminal device of the data receiving end As the second terminal device of the data receiving end.
  • This mode in which the base station schedules SL transmission resources can be referred to as the first mode; for example, the network device can schedule side link transmission resources through downlink control information (DCI), that is, the network device can dynamically schedule side link transmission resources.
  • DCI downlink control information
  • the first mode may be the mode 1 resource configuration mode or the mode 3 resource configuration mode stipulated in the current standards formulated by the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP).
  • the SL communication resources for wireless direct communication between the first terminal device and the second terminal device may also not be controlled by the network device scheduling, but determined by the terminal device itself.
  • the terminal device is in the communication coverage area of the network device.
  • the network device configures the SL resource pool for the terminal device through System Information Block (SIB) messages or dedicated radio resource control (Radio Resource Control, RRC) signaling for the terminal device, and the first terminal device as the data sender can autonomously follow
  • SIB System Information Block
  • RRC Radio Resource Control
  • the SL resource pool acquires SL communication resources to send control signals and data signals to the second terminal device as the data receiving end; or, for example, the terminal device is outside the communication coverage of the network device, and the first terminal device as the data sending end is autonomous Obtain the side link communication resource from the pre-configured SL resource pool to send the control signal, and/or the data signal to the second terminal device as the data receiving end.
  • the first terminal device searches for a suitable SL communication resource in the SL resource pool to send the control signal and/or the data signal by monitoring the busy and idle state of the channel by itself.
  • the first terminal device sends control signals, and/or data signals, by competing with other terminal devices to obtain appropriate SL communication resources in the SL resource pool.
  • the priority of the V2X service to be transmitted in the terminal device is higher. High, the greater the chance of it competing for suitable SL communication resources in the SL resource pool.
  • the first terminal device may also pre-store SL resource pool information, or the network device may preconfigure the SL resource pool when the first terminal device accesses the network.
  • This mode in which the terminal device determines the SL transmission resource by itself can be called the second mode; for example, the terminal device senses or competes for side link transmission resources.
  • the second mode may be the mode2 resource configuration mode or the mode4 resource configuration mode specified in the current standard formulated by 3GPP.
  • the configuration information of the default DRB of the first link includes at least one of the following information: first indication information, identification information of the default DRB of the first link, and protocol layers of the default DRB of the first link Configuration information, parameter information of a V2X data packet corresponding to the default DRB of the first link; wherein the first indication information is used to indicate that the configuration information is the configuration information of the default DRB of the first link.
  • the configuration information of each protocol layer of the default DRB of the first link includes the service data adaptation protocol SDAP layer configuration of the default DRB of the first link, the packet data convergence protocol PDCP layer configuration, and the radio link control RLC layer At least one of configuration, logical channel LCH configuration, and RLC channel configuration.
  • the processing module 1001 is specifically configured to map the first V2X data packet that has parameter information of the V2X data packet corresponding to the default DRB of the first link and meets a preset condition to the default DRB of the first link .
  • the transceiver module 1002 is further configured to send at least one piece of information in the parameter information of the V2X data packet of the default DRB mapped to the first link to the second network device.
  • the transceiver module 1002 is further configured to receive the mapping rule of the V2X data packet from the second network device to the DRB of the first link and the configuration information of the DRB of the first link, and the V2X data packet to the first link
  • the mapping rule of the DRB includes at least one of the following information: the identification information of the DRB of the first link, the parameter information of the V2X data packet corresponding to the DRB of the first link; the configuration of the DRB of the first link
  • the information includes identification information of the DRB of the first link and configuration information of each protocol layer of the DRB of the first link.
  • the processing module 1001 is also used to obtain the configuration information of the default quality of service QoS rule of the first link, where the first link is a direct wireless communication link between the terminal device and other terminal devices; the processing module 1001 is also used to According to the configuration information, the first link data packet that fails to match the QoS rule of the first link is mapped to the V2X QoS flow corresponding to the default QoS rule of the first link, where the V2X QoS flow is associated with QoS parameters.
  • the QoS parameters include at least one of the following information: QoS flow identifier, PC5 port fifth-generation communication system service quality identifier PQI, car networking communication system service quality identifier VQI, fifth-generation communication system service quality identifier 5QI, Guarantee flow bit rate GFBR, maximum flow bit rate MFBR, minimum required communication distance, allocation and reservation priority ARP.
  • all the QoS rules of the first link and the default QoS rule of the first link have priority values, where the default QoS rule of the first link has the largest priority value.
  • the default QoS rule of the first link can filter all first link data packets, and map the first link data packet to the V2X QoS flow corresponding to the default QoS rule of the first link.
  • the transceiver module 1002 is further configured to send QoS parameters to the network device, where the QoS parameters are used by the network device to configure the DRB of the first link for the terminal device, and/or the default DRB of the first link,
  • the default DRB of the link is used to map the V2X QoS flow that meets the preset condition, and meeting the preset condition includes the failure of matching the V2X QoS flow to the DRB of the first link.
  • the transceiver module 1002 is further configured to receive the DRB of the first link and/or the configuration information of the default DRB of the first link from the network device, and the processing module 1001 sets the default DRB of the first link
  • the V2X QoS flow corresponding to the QoS rule is mapped to the DRB of the first link, and/or the default DRB of the first link.
  • the processing module 1001 is configured to obtain the configuration information of the default quality of service QoS rule of the first link, including any one or more of the following: the transceiver module 1002 is also configured to obtain from the V2X control network element or the core network device The configuration information, and/or, the processing module 1001 is specifically configured to store pre-configured configuration information.
  • the priority of the configuration information acquired by the transceiver module 1002 from the V2X control network element or core network device is higher than the priority of the configuration information preconfigured in the terminal device.
  • the terminal device 200 is presented in the form of dividing various functional modules in an integrated manner.
  • the "module” here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the terminal device 200 can take the form of the terminal device 105 shown in FIG. 2.
  • the processor 180 in the terminal device 105 shown in FIG. 2 can invoke the computer execution instructions stored in the memory 120 to make the terminal device 105 execute the communication method in the foregoing method embodiment.
  • the functions/implementation process of the processing module 1001 and the transceiver module 1002 in FIG. 10 may be implemented by the processor 180 in the terminal device 105 shown in FIG. 3 calling the computer execution instructions stored in the memory 120.
  • the function/implementation process of the processing module 1001 in FIG. 10 can be implemented by the processor 180 in the terminal device 105 shown in FIG. 3 calling a computer execution instruction stored in the memory 120, and the function of the transceiver module 1002 in FIG. /The implementation process can be implemented by the RF circuit 110 in the terminal device 105 shown in FIG. 3.
  • the terminal device 105 provided in this embodiment can execute the above-mentioned communication method, the technical effects that can be obtained can refer to the above-mentioned method embodiment, which will not be repeated here.
  • FIG. 11 shows a schematic structural diagram of a network device 110.
  • the network device 110 includes a processing module 1101 and a transceiver module 1102.
  • the transceiver module 1102 may also be called a transceiver unit to implement sending and/or receiving functions.
  • it may be a transceiver circuit, a transceiver, a transceiver, or a communication interface.
  • the processing module 1101 is configured to determine the configuration information of the default data radio bearer DRB of the first link, where the first link is a direct wireless communication link between the first terminal device and other terminal devices, and the first terminal device It is the sending end of the V2X data packet of the first Internet of Vehicles; the transceiver module 1102 is used to send the configuration information of the default DRB of the first link to the first terminal device.
  • the priority of the configuration information of the default DRB of the first link sent by the transceiver module 1102 to the first terminal device is higher than the priority of the configuration information of the default DRB of the first link pre-configured in the first terminal device .
  • the transceiver module 1102 is configured to receive from the first terminal device at least one piece of parameter information of the car networking V2X data packet of the default data radio bearer DRB that has been mapped to the first link, where the first terminal device is the first V2X At the sending end of the data packet, the first link is a direct wireless communication link between the first terminal device and other terminal devices; the processing module 1101 is configured to determine that the V2X data packet is sent to the first terminal device according to at least one piece of parameter information.
  • the mapping rule of the DRB of the link and the configuration information of the DRB of the first link is configured to determine that the V2X data packet is sent to the first terminal device according to at least one piece of parameter information.
  • the mapping rule of the V2X data packet to the DRB of the first link includes at least one of the following information: identification information of the DRB of the first link, The parameter information of the V2X data packet corresponding to the DRB of the first link; the configuration information of the DRB of the first link includes the identification information of the DRB of the first link and the configuration of each protocol layer of the DRB of the first link information.
  • the transceiver module 1102 is further configured to send the mapping rule of the V2X data packet to the DRB of the first link and the configuration information of the DRB of the first link to the first terminal device.
  • the processing module 1101 is used to obtain the QoS parameters associated with the V2X QoS flow of the Internet of Vehicles, where the V2X QoS flow corresponds to the default QoS rule of the first link, and the V2X QoS flow is used to map the first link that fails the QoS rule of the first link.
  • Link data packet processing module 1101, which is also used to configure the data radio bearer DRB of the first link for the terminal device according to the QoS parameters, and/or the default DRB of the first link, where the default DRB of the first link DRB is used to map V2X QoS flows that meet preset conditions.
  • Meeting preset conditions includes matching V2X QoS flows to the DRB failure of the first link, where the first link is the direct wireless connection between the terminal device and other terminal devices. Communication link.
  • the QoS parameters include at least one of the following information: QoS flow identifier, PC5 port fifth-generation communication system service quality identifier PQI, car networking communication system service quality identifier VQI, fifth-generation communication system service quality identifier 5QI, Guaranteed flow bit rate GFBR, maximum flow bit rate MFBR, minimum required communication distance, allocation and reservation priority ARP.
  • the processing module 1101 is configured to obtain QoS parameters associated with the V2X QoS flow of the Internet of Vehicles, including: a transceiver module 1102, which is also configured to receive QoS parameters from a terminal device.
  • the processing module 1101 is configured to obtain QoS parameters associated with the V2X QoS flow of the Internet of Vehicles, including: a transceiver module 1102, which is also configured to receive QoS parameters from core network devices.
  • the first link data packet is an Internet Protocol or Ethernet data packet.
  • the network device 110 is presented in the form of dividing various functional modules in an integrated manner.
  • the "module” here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the network device 110 may take the form of the network device 200 shown in FIG. 4.
  • the processor 201 in the network device 200 shown in FIG. 4 may invoke the computer execution instructions stored in the memory 202 to make the network device 200 execute the communication method in the foregoing method embodiment.
  • the functions/implementation process of the processing module 1101 and the transceiver module 1102 in FIG. 11 may be implemented by the processor 201 in the network device 200 shown in FIG. 4 calling a computer execution instruction stored in the memory 202.
  • the function/implementation process of the processing module 1101 in FIG. 11 can be implemented by the processor 201 in the network device 200 shown in FIG. 4 calling a computer execution instruction stored in the memory 202, and the function of the transceiver module 1102 in FIG. 11 /The realization process can be realized through the communication interface 203 in the network device 200 shown in FIG. 4.
  • the network device 110 provided in this embodiment can perform the above-mentioned communication method, the technical effects that can be obtained can refer to the above-mentioned method embodiment, and will not be repeated here.
  • An embodiment of the present application further provides a communication device, including: a processor and a memory, the memory is used to store a program, and the processor calls the program stored in the memory to make the communication device execute the terminal device in FIGS. 5-9 , The communication method of the first terminal device or the second terminal device.
  • An embodiment of the present application further provides a communication device, including: a processor and a memory, the memory is used to store a program, and the processor calls the program stored in the memory to make the communication device execute the network device in FIGS. 5-9 , The communication method of the first network device or the second network device.
  • the embodiment of the present application also provides a computer-readable storage medium that stores instructions in the computer-readable storage medium.
  • the instructions run on a computer or a processor, the computer or the processor executes the steps shown in Figure 5-9.
  • the embodiments of the present application also provide a computer program product containing instructions.
  • the computer or the processor executes the terminal device, the first terminal device or the second terminal device in Figure 5-9.
  • An embodiment of the present application provides a chip system, which includes a processor, and is used by a communication device to execute the communication method of the terminal device, the first terminal device, or the second terminal device in FIGS. 5-9.
  • the first terminal device obtains the configuration information of the default data radio bearer DRB of the first link, where the first terminal device is the sender of the first car networking V2X data packet, and the first link is the first terminal device and other Directly connected wireless communication links between terminal devices; the first terminal device maps the first V2X data packet that meets a preset condition to the default DRB of the first link, where meeting the preset condition includes that the first terminal device matches the first The DRB of a V2X data packet to the first link fails.
  • the chip system also includes a memory, which is used to store necessary program instructions and data for the terminal device.
  • the chip system may include a chip, an integrated circuit, or a chip and other discrete devices, which is not specifically limited in the embodiment of the present application.
  • An embodiment of the present application provides a chip system, which includes a processor, configured for a communication device to execute the communication method of the network device, the first network device, or the second network device in FIGS. 5-9.
  • the first network device determines the configuration information of the default data radio bearer DRB of the first link, where the first link is a direct wireless communication link between the first terminal device and other terminal devices, and the first terminal device It is the sender of the first Internet of Vehicles V2X data packet; the first network device sends the configuration information of the default DRB of the first link to the first terminal device.
  • the chip system further includes a memory for storing necessary program instructions and data for the network device.
  • the chip system may include a chip, an integrated circuit, or a chip and other discrete devices, which is not specifically limited in the embodiment of the present application.
  • the communication device, computer storage medium, computer program product, or chip system provided in the present application are all used to execute the communication method described above. Therefore, the beneficial effects that can be achieved can be referred to in the embodiments provided above The beneficial effects of, will not be repeated here.
  • the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, rather than corresponding to the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the computer may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • a software program it may be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or may include one or more data storage devices such as servers and data centers that can be integrated with the medium.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

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Abstract

本申请公开了一种通信方法和装置，涉及通信领域，该通信方法，包括：第一终端设备获取第一链路的默认数据无线承载DRB的配置信息，其中，该第一终端设备为第一车联网V2X数据包的发送端，该第一链路为该第一终端设备与其他终端设备之间的直连无线通信链路；该第一终端设备将满足预设条件的该第一V2X数据包映射至该第一链路的默认DRB，其中，该满足预设条件包括该第一终端设备匹配该第一V2X数据包到第一链路的DRB失败。

Description

通信方法和装置
本申请要求于2019年3月28日提交国家知识产权局、申请号为201910245337.1、申请名称为“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
本申请涉及通信领域，尤其涉及一种通信方法和装置。
背景技术
车联网(vehicle to everything，V2X)被认为是物联网体系中最有产业潜力、市场需求最为明确的领域之一。如图1所示为V2X通信架构，包括第一终端设备11、第二终端设备12、网络设备13和V2X应用服务器14。该通信系统包括两种通信接口——V2X PC5接口和V2X Uu接口，其中，V2X PC5接口是第一终端设备11与第二终端设备12之间直连通信接口，对应的直连通信链路可以称为侧行链路或侧链(sidelink，SL)；V2X Uu接口是第一终端设备11或第二终端设备12与网络设备13之间的通信接口。
对于LTE V2X的V2X PC5接口，不需要第一终端设备11和第二终端设备12交互SL数据无线承载(data radio bearers，DRB)的配置信息，作为接收端的终端设备可以根据层2源标识(source L2 ID)、层2目的标识(destination L2 ID)和逻辑信道标识(logical channel identification，LCH ID)将来自发送端的V2X数据包传递到对应的上层协议栈进行处理。
与LTE V2X不同，新空口(new radio，NR)V2X的SL DRB可以由网络设备13来配置，并且第一终端设备11和第二终端设备12需要交互单播通信的SL DRB的配置信息。如果终端设备存储的SL DRB的配置信息无法将新的V2X数据包映射到相应的SL DRB，则会影响SL上的业务传输时延。
发明内容
本申请实施例提供一种通信方法和装置，用于终端设备配置默认DRB，使得根据DRB的配置信息无法将V2X数据包映射到相应的DRB时，映射到默认DRB，不会增加业务传输时延。
为达到上述目的，本申请的实施例采用如下技术方案：
第一方面，提供了一种通信方法，包括：第一终端设备获取第一链路的默认数据无线承载DRB的配置信息，其中，第一终端设备为第一车联网V2X数据包的发送端，第一链路为第一终端设备与其他终端设备之间的直连无线通信链路；第一终端设备将满足预设条件的第一V2X数据包映射至第一链路的默认DRB，其中，满足预设条件包括第一终端设备匹配V2X数据包到第一链路的DRB失败。其中，第一链路的默认DRB的配置信息包括第一指示信息以及与第一链路的默认DRB具有对应关系的V2X数据包的参数信息，第一指示信息用于指示配置信息为第一链路的默认DRB的配置信息。本申请实施例提供的通信方法，第一终端设备获取第一链路的默认DRB的配置信 息，第一终端设备为第一V2X数据包的发送端。第一终端设备将满足预设条件的第一V2X数据包映射至第一链路的默认DRB。其中，满足预设条件包括第一终端设备匹配第一V2X数据包到第一链路的DRB失败。也就是说，当作为发送端的第一终端设备匹配第一V2X数据包到第一链路的DRB失败时，将第一V2X数据包映射至第一链路的默认DRB，在第一链路的默认DRB上传输第一V2X数据包。终端设备配置默认DRB，使得该终端设备根据DRB的配置信息无法将V2X数据包映射到相应的DRB时，映射到默认DRB，因此，终端设备可以不必再另外与网络设备交互以获取相应的DRB的配置信息，从而减少业务传输时延。
在一种可能的实施方式中，第一终端设备匹配V2X数据包到第一链路的DRB失败，包括：第一终端设备无法在已存储的DRB映射规则中匹配到相同的V2X数据包的参数信息；其中，DRB映射规则包括与DRB所对应的V2X数据包的参数信息，第一链路的DRB包括已存储的DRB映射规则所能映射出的DRB。
在一种可能的实施方式中，第一终端设备获取第一链路的默认数据无线承载DRB的配置信息，包括：第一终端设备从第一网络设备接收第一链路的默认DRB的配置信息，和/或，第一终端设备存储有预配置的第一链路的默认DRB的配置信息。
在一种可能的实施方式中，还包括：第一终端设备从第一网络设备接收的第一链路的默认DRB的配置信息的优先级高于第一终端设备中预配置的第一链路的默认DRB的配置信息的优先级。该实施方式使得第一终端设备可以根据来自第一网络设备的第一链路的默认DRB的配置信息更新第一终端设备中存储的第一链路的默认DRB的配置信息。
在一种可能的实施方式中，第一链路的默认DRB的配置信息包括V2X数据包的发送端需要的DRB配置信息，和/或，V2X数据包的接收端需要的DRB配置信息。
在一种可能的实施方式中，第一链路的默认DRB的配置信息包括V2X数据包的发送端需要的DRB配置信息，和/或，V2X数据包的接收端需要的DRB配置信息，包括：V2X数据包为组播或广播数据包，第一链路的默认DRB的配置信息包括V2X数据包的发送端需要的DRB配置信息；或者，V2X数据包为单播数据包，第一链路的默认DRB的配置信息包括V2X数据包的发送端需要的DRB配置信息和V2X数据包的接收端需要的DRB配置信息。
在一种可能的实施方式中，还包括：第一终端设备向第二终端设备发送V2X数据包的接收端需要的DRB配置信息；或者，第一终端设备向第二终端设备发送V2X数据包的发送端需要的DRB配置信息和V2X数据包的接收端需要的DRB配置信息；其中，第二终端设备为第一V2X数据包的接收端。即第一链路的默认DRB的配置信息可以用于第一终端设备与第二终端设备的单向通信和双向通信，使得第二终端设备可以获知V2X数据包的发送端需要的DRB配置信息和V2X数据包的接收端需要的DRB配置信息。
在一种可能的实施方式中，第一终端设备向第二终端设备发送V2X数据包的接收端需要的DRB配置信息，还包括:第二终端设备根据第一链路的默认DRB接收满足预设条件的第一V2X数据包。
在一种可能的实施方式中，第一终端设备向第二终端设备发送V2X数据包的发送 端需要的DRB配置信息和V2X数据包的接收端需要的DRB配置信息，还包括:第二终端设备还为第二V2X数据包的发送端，第一终端设备还为第二V2X数据包的接收端；第二终端设备将满足预设条件的第二V2X数据包映射至第一链路的默认DRB；第一终端设备根据第一链路的默认DRB接收满足预设条件的第二V2X数据包。即第一终端设备不仅可以作为V2X数据包的发送端，还可以作为V2X数据包的接收端。
在一种可能的实施方式中，V2X数据包具有参数信息，参数信息包括QoS参数、通信类型信息、目标地址标识信息、连接标识信息、资源配置模式信息中的至少一个。
在一种可能的实施方式中，QoS参数包括以下信息中的至少一项：QoS流标识、PC5口第五代通信系统服务质量标识PQI、车联网通信系统服务质量标识VQI、第五代通信系统服务质量标识5QI、保证流量比特率GFBR、最大流量比特率MFBR、最小需求通信距离、分配和保留优先级ARP。
在一种可能的实施方式中，其中，QoS参数、目标地址标识信息、通信类型信息为V2X数据包所关联的参数信息；通信类型信息包括广播通信、组播通信、单播通信中的至少一种；连接标识信息是由第一终端设备根据V2X数据包关联的目标地址标识信息确定；资源配置模式信息包括第一种资源配置模式，和/或，第二种资源配置模式，其中，第一种资源配置模式包括：第一网络设备为第一终端设备配置第一链路传输资源，第二种资源配置模式包括：第一终端设备选择第一链路传输资源。
在一种可能的实施方式中，第一链路的默认DRB的配置信息还包括以下信息中的至少一个：第一指示信息、第一链路的默认DRB的标识信息、第一链路的默认DRB的各协议层的配置信息、与第一链路的默认DRB具有对应关系的V2X数据包的参数信息；其中，第一指示信息用于指示配置信息为第一链路的默认DRB的配置信息。
在一种可能的实施方式中，第一链路的默认DRB的各协议层的配置信息包括第一链路的默认DRB的服务数据适配协议SDAP层配置、分组数据汇聚协议PDCP层配置、无线链路控制RLC层配置、逻辑信道LCH配置、RLC信道配置中的至少一个。
在一种可能的实施方式中，第一终端设备将满足预设条件的第一V2X数据包映射至第一链路的默认DRB，包括：第一终端设备将具有与第一链路的默认DRB具有对应关系的V2X数据包的参数信息且满足预设条件的第一V2X数据包映射至第一链路的默认DRB。该实施方式进一步限定了第一V2X数据包不仅要满足预设条件，而且要具有与第一链路的默认DRB具有对应关系的V2X数据包的参数信息，才能映射至第一链路的默认DRB。
在一种可能的实施方式中，该方法还包括：第一终端设备向第二网络设备发送已映射至第一链路的默认DRB的V2X数据包的参数信息中的至少一个信息。该实施方式可以触发第二网络设备根据上述信息更新第一终端设备中第一链路的DRB的配置信息。
在一种可能的实施方式中，该方法还包括：第一终端设备接收来自于第二网络设备的V2X数据包到第一链路的DRB的映射规则以及第一链路的DRB的配置信息，V2X数据包到第一链路的DRB的映射规则中包括以下信息中的至少一个：第一链路的DRB的标识信息、与第一链路的DRB具有对应关系的V2X数据包的参数信息；第一链路的DRB的配置信息包括第一链路的DRB的标识信息和第一链路的DRB的各协 议层的配置信息。
第二方面，提供了一种通信方法，包括：第一网络设备确定第一链路的默认数据无线承载DRB的配置信息，其中，第一链路为第一终端设备与其他终端设备之间的直连无线通信链路，第一终端设备为第一车联网V2X数据包的发送端；第一网络设备向第一终端设备发送第一链路的默认DRB的配置信息。本申请实施例提供的通信方法，提供了第一网络设备可以配置第一终端设备中第一链路的默认DRB的配置信息。
在一种可能的实施方式中，第一网络设备向第一终端设备发送的第一链路的默认DRB的配置信息的优先级高于第一终端设备中预配置的第一链路的默认DRB的配置信息的优先级。该实施方式使得第一终端设备可以根据来自第一网络设备的第一链路的默认DRB的配置信息更新第一终端设备中存储的第一链路的默认DRB的配置信息。
第三方面，提供了一种通信方法，包括：第二网络设备从第一终端设备接收已映射至第一链路的默认数据无线承载DRB的车联网V2X数据包的参数信息中的至少一个信息，其中，第一终端设备为第一V2X数据包的发送端，第一链路为第一终端设备与其他终端设备之间的直连无线通信链路；第二网络设备根据参数信息中的至少一个信息确定V2X数据包到第一链路的DRB的映射规则以及第一链路的DRB的配置信息，V2X数据包到第一链路的DRB的映射规则中包括以下信息中的至少一个：第一链路的DRB的标识信息、与第一链路的DRB具有对应关系的V2X数据包的参数信息；第一链路的DRB的配置信息包括第一链路的DRB的标识信息和第一链路的DRB的各协议层的配置信息。本申请实施例提供的通信方法，使得网络设备可以根据第一终端设备的已映射至第一链路的默认数据无线承载DRB的车联网V2X数据包的参数信息中的至少一个信息，为第一终端设备配置V2X数据包到第一链路的DRB的映射规则以及第一链路的DRB的配置信息。
在一种可能的实施方式中，该方法还包括：第二网络设备向第一终端设备发送V2X数据包到第一链路的DRB的映射规则以及第一链路的DRB的配置信息。
第四方面，提供了一种通信方法，包括：终端设备获取第一链路的默认服务质量QoS规则的配置信息，其中，第一链路为终端设备与其他终端设备之间的直连无线通信链路；终端设备根据配置信息，将匹配第一链路的QoS规则失败的第一链路数据包映射至第一链路的默认QoS规则对应的V2X QoS流，其中，V2X QoS流关联有QoS参数。本申请实施例提供的通信方法，终端设备获取第一链路的默认QoS规则(default QoS rule)的配置信息，终端设备根据配置信息，将匹配第一链路的QoS规则失败的第一链路数据包映射至第一链路的默认QoS规则对应的V2X QoS流。终端设备不必再与网络设备交互以获取对应的QoS规则的配置信息，因此，不会增加业务传输时延。
在一种可能的实施方式中，QoS参数包括以下信息中的至少一项：QoS流标识、PC5口第五代通信系统服务质量标识PQI、车联网通信系统服务质量标识VQI、第五代通信系统服务质量标识5QI、保证流量比特率GFBR、最大流量比特率MFBR、最小需求通信距离、分配和保留优先级ARP。
在一种可能的实施方式中，还包括：所有第一链路的QoS规则和第一链路的默认QoS规则具有优先级值，其中，第一链路的默认QoS规则具有最大的优先级值。该实施方式使得第一链路数据包无法匹配第一链路的QoS规则时始终能够匹配第一链路的 默认QoS规则。
在一种可能的实施方式中，还包括：第一链路的默认QoS规则能够过滤所有的第一链路数据包，并将第一链路数据包映射至第一链路的默认QoS规则对应的V2X QoS流。该实施方式使得第一链路数据包无法匹配第一链路的QoS规则时始终能够匹配第一链路的默认QoS规则。
在一种可能的实施方式中，该方法还包括：终端设备向网络设备发送QoS参数，其中，QoS参数用于网络设备为终端设备配置第一链路的DRB，和/或，第一链路的默认DRB，第一链路的默认DRB用于映射满足预设条件的V2X QoS流，满足预设条件包括匹配V2X QoS流到第一链路的DRB失败。该实施方式可以使得网络设备能够根据匹配默认QoS规则的QoS流的QoS参数，为终端设备配置第一链路的DRB，和/或，第一链路的默认DRB。
在一种可能的实施方式中，该方法还包括：终端设备从网络设备接收第一链路的DRB，和/或，第一链路的默认DRB的配置信息，该终端设备将该第一链路的默认QoS规则对应的V2X QoS流映射至该第一链路的DRB，和/或，该第一链路的默认DRB。
在一种可能的实施方式中，终端设备获取第一链路的默认服务质量QoS规则的配置信息，包括以下任一种或任几种：终端设备从V2X控制网元或核心网设备获取配置信息，和/或，终端设备存储有预配置的配置信息。
在一种可能的实施方式中，还包括：终端设备从V2X控制网元或核心网设备获取的配置信息的优先级高于终端设备中预配置的配置信息的优先级。该实施方式使得终端设备可以根据从V2X控制网元或核心网设备获取的配置信息更新预配置的配置信息。
第五方面，提供了一种通信方法，包括：网络设备获取车联网V2X服务质量QoS流关联的QoS参数，其中，V2X QoS流与第一链路的默认QoS规则对应,V2X QoS流用于映射匹配第一链路的QoS规则失败的第一链路数据包；网络设备根据QoS参数，为终端设备配置第一链路的数据无线承载DRB，和/或，第一链路的默认DRB，其中，第一链路的默认DRB用于映射满足预设条件的V2X QoS流，满足预设条件包括匹配V2X QoS流到第一链路的DRB失败，其中，第一链路为终端设备与其他终端设备之间的直连无线通信链路。本申请实施例提供的通信方法，终端设备获取第一链路的默认QoS规则(default QoS rule)的配置信息，终端设备根据配置信息，将匹配第一链路的QoS规则失败的第一链路数据包映射至第一链路的默认QoS规则对应的V2X QoS流。终端设备不必再与网络设备交互以获取对应的QoS规则的配置信息，因此，不会增加业务传输时延。
在一种可能的实施方式中，QoS参数包括以下信息中的至少一项：QoS流标识、PC5口第五代通信系统服务质量标识PQI、车联网通信系统服务质量标识VQI、第五代通信系统服务质量标识5QI、保证流量比特率GFBR、最大流量比特率MFBR、最小需求通信距离、分配和保留优先级ARP。
在一种可能的实施方式中，网络设备获取车联网V2X服务质量QoS流关联的QoS参数，包括：网络设备从终端设备接收QoS参数，或者，网络设备从核心网设备接收QoS参数。
在一种可能的实施方式中，第一链路数据包为互联网协议或者以太网数据包。
第六方面，提供了一种终端设备，包括：处理模块和收发模块；用于执行第一方面及其任一实施方式所述的通信方法。例如，处理模块用于获取第一链路的默认数据无线承载DRB的配置信息，其中，第一终端设备为第一车联网V2X数据包的发送端，第一链路为第一终端设备与其他终端设备之间的直连无线通信链路；处理模块还用于将满足预设条件的第一V2X数据包映射至第一链路的默认DRB，其中，满足预设条件包括第一终端设备匹配第一V2X数据包到第一链路的DRB失败。
第七方面，提供了一种网络设备，包括：处理模块和收发模块；用于执行第二方面及其任一实施方式所述的通信方法。例如，处理模块用于确定第一链路的默认数据无线承载DRB的配置信息，其中，第一链路为第一终端设备与其他终端设备之间的直连无线通信链路，第一终端设备为第一车联网V2X数据包的发送端；收发模块用于向第一终端设备发送第一链路的默认DRB的配置信息。
第八方面，提供了一种网络设备，包括：处理模块和收发模块；用于执行第三方面及其任一实施方式所述的通信方法。例如，收发模块用于从第一终端设备接收已映射至第一链路的默认数据无线承载DRB的车联网V2X数据包的参数信息中的至少一个信息，其中，第一终端设备为第一V2X数据包的发送端，第一链路为第一终端设备与其他终端设备之间的直连无线通信链路；处理模块用于根据参数信息中的至少一个信息确定V2X数据包到第一链路的DRB的映射规则以及第一链路的DRB的配置信息，V2X数据包到第一链路的DRB的映射规则中包括以下信息中的至少一个：第一链路的DRB的标识信息、与第一链路的DRB具有对应关系的V2X数据包的参数信息；第一链路的DRB的配置信息包括第一链路的DRB的标识信息和第一链路的DRB的各协议层的配置信息。
第九方面，提供了一种终端设备，包括：处理模块和收发模块；用于执行第四方面及其任一实施方式所述的通信方法。例如，处理模块用于获取第一链路的默认服务质量QoS规则的配置信息，其中，第一链路为终端设备与其他终端设备之间的直连无线通信链路；处理模块还用于根据配置信息，将匹配第一链路的QoS规则失败的第一链路数据包映射至第一链路的默认QoS规则对应的V2X QoS流，其中，V2X QoS流关联有QoS参数。
第十方面，提供了一种网络设备，包括：处理模块和收发模块；用于执行第五方面及其任一实施方式所述的通信方法。例如，处理模块用于获取车联网V2X服务质量QoS流关联的QoS参数，其中，V2X QoS流与第一链路的默认QoS规则对应,V2X QoS流用于映射匹配第一链路的QoS规则失败的第一链路数据包；处理模块还用于根据QoS参数，为终端设备配置第一链路的数据无线承载DRB，和/或，第一链路的默认DRB，其中，第一链路的默认DRB用于映射满足预设条件的V2X QoS流，满足预设条件包括匹配V2X QoS流到第一链路的DRB失败，其中，第一链路为终端设备与其他终端设备之间的直连无线通信链路。
第十一方面，提供一种通信装置，包括：处理器和存储器，存储器用于存储程序，处理器调用存储器存储的程序，以使所述通信装置执行如第一方面及其任一实施方式所述的通信方法，或者执行如第四方面及其任一实施方式所述的通信方法。
第十二方面，提供一种通信装置，包括：处理器和存储器，存储器用于存储程序，处理器调用存储器存储的程序，以使所述通信装置执行如第二方面及其任一实施方式所述的通信方法，或者执行如第三方面及其任一实施方式所述的通信方法，或者执行如第五方面及其任一实施方式所述的通信方法。
第十三方面，提供了一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当该指令在计算机或处理器上运行时，使得计算机或处理器执行如第一方面至第五方面及其任一种可能的实施方式中的通信方法。
第十四方面，提供了一种包含指令的计算机程序产品，当该指令在计算机或处理器上运行时，使得计算机或处理器执行如第一方面至第五方面及其任一种可能的实施方式中的通信方法。
第十五方面，提供了一种通信系统，包括如第六方面所述的终端设备和如第七方面或第八方面所述的网络设备，或者，包括如第九方面所述的终端设备和如第十方面所述的网络设备，或者，包括如第十一方面所述的通信装置和如第十二方面所述的通信装置。
第十六方面，提供了一种芯片系统，芯片系统包括处理器，用于通信装置执行如第一方面至第五方面及其任一种可能的实施方式中的通信方法。
第六方面至第十六方面的技术效果可以参照第一方面至第五方面的各种可能实施方式所述内容。
附图说明
图1为本申请实施例提供的一种车联网系统的架构示意图；
图2为本申请实施例提供的一种通信系统的架构示意图；
图3为本申请实施例提供的一种终端设备的结构示意图一；
图4为本申请实施例提供的一种网络设备的结构示意图一；
图5为本申请实施例提供的一种通信方法的流程示意图一；
图6为本申请实施例提供的一种通信方法的流程示意图二；
图7为本申请实施例提供的一种通信方法的流程示意图三；
图8为本申请实施例提供的另一种通信方法的流程示意图一；
图9为本申请实施例提供的另一种通信方法的流程示意图二；
图10为本申请实施例提供的一种终端设备的结构示意图二；
图11为本申请实施例提供的一种网络设备的结构示意图二。
具体实施方式
本申请实施例依托无线通信网络中第五代(5th generation，5G)通信网络的V2X场景进行说明，应当指出的是，本申请实施例中的方案还可以应用于其他无线通信网络中，相应的名称也可以用其他无线通信网络中的对应功能的名称进行替代。
本申请实施例可以适用于长期演进(long term evolution，LTE)系统，例如窄带物联网(narrowband internet ofthings，NB-IoT)系统中，或者，也可以适用于高级的长期演进(LTE advanced，LTE-A)系统。也可以适用于其他无线通信系统，例如全球移动通信系统(global system for mobile communication，GSM)，移动通信系统(universal mobile telecommunications system，UMTS)，码分多址接入(code division  multiple access，CDMA)系统，以及新的网络设备系统等。
如图2所示，本申请实施例提供的通信系统100，包括网络设备101和至少两个终端设备102-107。可选的，还可以包括V2X应用服务器。
该通信系统包括两种通信接口——V2X PC5接口和V2X Uu接口。其中，V2X PC5接口是终端设备102-107之间直连通信接口，对应的直连通信链路可以称为侧行链路或侧链(sidelink，SL)。V2X Uu接口是终端设备102-107与网络设备101之间的通信接口，发送方的终端设备将V2X数据通过V2X Uu接口发送给网络设备101，并由网络设备101转发给V2X应用服务器进行处理，再由V2X应用服务器发送给网络设备101，并通过网络设备101发送给接收方的终端设备。在V2X Uu接口通信方式下，转发上行数据的网络设备101与转发下行数据的网络设备101可以为同一网络设备或不同网络设备，具体可以由V2X应用服务器决定。
本申请实施例涉及的终端设备，可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网(radio access network，RAN)与一个或多个核心网进行通信，无线终端可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，用户设备(user equipment，UE)、个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(session initiation protocol，SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)等设备。无线终端也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端(remote terminal)、接入终端(access terminal)、用户终端(user terminal)、用户代理(user agent)、用户设备(user device)、或用户装备(user equipment)。示例性的，终端设备可以为高铁通信设备102、智能空调103、智能加油机104、手机105、智能茶杯106、打印机107等，本申请不作限定。
本申请实施例所涉及网络设备可以为基站，该基站可用于将收到的空中帧与互联网协议(internet protocol，IP)分组进行相互转换，作为无线终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括IP网络设备。该基站还可协调对空中接口的属性管理。例如，基站可以是GSM或CDMA中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)中的基站(NodeB)，还可以是LTE中的演进型基站(evolutional Node B，eNB或e-NodeB)，还可以是5G中的gNB，本申请实施例并不限定。
如图3所示，以终端设备为手机为例，对终端设备的结构进行说明。
终端设备105可以包括：射频(radio frequency，RF)电路110、存储器120、输入单元130、显示单元140、传感器150、音频电路160、无线保真(wireless fidelity，Wi-Fi)模块170、处理器180、蓝牙模块181、以及电源190等部件。
RF电路110可用于在收发信息或通话过程中信号的接收和发送，可以接收基站的下行数据后交给处理器180处理；可以将上行数据发送给基站。通常，RF电路包括但 不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等器件。
存储器120可用于存储软件程序及数据。处理器180通过运行存储在存储器120的软件程序或数据，从而执行终端设备105的各种功能以及数据处理。存储器120可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。存储器120存储有使得终端设备105能运行的操作系统，例如苹果公司所开发的
Figure PCTCN2020081877-appb-000001
操作系统，谷歌公司所开发的
Figure PCTCN2020081877-appb-000002
开源操作系统，微软公司所开发的
Figure PCTCN2020081877-appb-000003
操作系统等。本申请中存储器120可以存储操作系统及各种应用程序，还可以存储执行本申请实施例所述方法的代码。
输入单元130(例如触摸屏)可用于接收输入的数字或字符信息，产生与终端设备105的用户设置以及功能控制有关的信号输入。具体地，输入单元130可以包括设置在终端设备105正面的触控屏131，可收集用户在其上或附近的触摸操作。
显示单元140(即显示屏)可用于显示由用户输入的信息或提供给用户的信息以及终端设备105的各种菜单的图形用户界面(graphical user interface，GUI)。显示单元140可包括设置在终端设备105正面的显示屏141。其中，显示屏141可以采用液晶显示器、发光二极管等形式来配置。显示单元140可以用于显示本申请中所述的各种图形用户界面。触控屏131可以覆盖在显示屏141之上，也可以将触控屏131与显示屏141集成而实现终端设备105的输入和输出功能，集成后可以简称触摸显示屏。
终端设备105还可以包括至少一种传感器150，比如光传感器、运动传感器。终端设备105还可配置有陀螺仪、气压计、湿度计、温度计、红外线传感器等其他传感器。
音频电路160、扬声器161、麦克风162可提供用户与终端设备105之间的音频接口。音频电路160可将接收到的音频数据转换后的电信号，传输到扬声器161，由扬声器161转换为声音信号输出；另一方面，麦克风162将收集的声音信号转换为电信号，由音频电路160接收后转换为音频数据，再将音频数据输出至RF电路110以发送给比如另一终端，或者将音频数据输出至存储器120以便进一步处理。
Wi-Fi属于短距离无线传输技术，终端设备105可以通过Wi-Fi模块170帮助用户收发电子邮件、浏览网页和访问流媒体等，它为用户提供了无线的宽带互联网访问。
处理器180是终端设备105的控制中心，利用各种接口和线路连接整个终端的各个部分，通过运行或执行存储在存储器120内的软件程序，以及调用存储在存储器120内的数据，执行终端设备105的各种功能和处理数据。在一些实施例中，处理器180可包括一个或多个处理单元；处理器180还可以集成应用处理器和基带处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，基带处理器主要处理无线通信。可以理解的是，上述基带处理器也可以不集成到处理器180中。本申请中处理器180可以运行操作系统、应用程序、用户界面显示及触控响应，以及本申请实施例所述的通信方法。
蓝牙模块181，用于通过蓝牙协议来与其他具有蓝牙模块的蓝牙设备进行信息交互。例如，终端设备105可以通过蓝牙模块181与同样具备蓝牙模块的可穿戴电子设备(例如智能手表)建立蓝牙连接，从而进行数据交互。
终端设备105还包括给各个部件供电的电源190(比如电池)。电源可以通过电 源管理系统与处理器180逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗等功能。
如图4所示，本申请实施例提供了一种网络设备的结构示意图。网络设备200包括：至少一个处理器201、至少一个存储器202、至少一个通信接口203。其中，至少一个处理器201、至少一个存储器202、至少一个通信接口203可以通过总线相连。
存储器202，用于存储计算机程序代码。
处理器201，用于调用存储器202存储的计算机程序代码，以执行下述各方法实施例中网络设备的功能。
通信接口203，用于与其他通信装置例如终端设备之间进行通信。该通信接口203可以以无线通信方式进行通信。
现有技术中，在V2X通信中，如果终端设备未能匹配存储的DRB的配置信息，该DRB的配置信息能够将V2X数据包流映射到相应的DRB，则终端设备需要与网络设备交互以获取对应的DRB的配置信息，才能将V2X数据包映射到相应的DRB，这增加了业务传输时延。本申请实施例提供的通信方法和终端设备，为终端设备配置默认DRB的配置信息，当终端设备无法根据已有DRB的配置信息将V2X数据包映射到相应的DRB时，均按照默认DRB的配置信息将V2X数据包映射到默认DRB，在默认DRB上传输V2X数据包之前，不必再与网络设备交互以获取对应的DRB的配置信息，因此，不会增加业务传输时延。
具体的，本申请实施例提供了一种通信方法，应用于上述系统，如图5所示，该通信方法包括：
S501、第一终端设备获取第一链路的默认DRB的配置信息。
其中，第一终端设备为第一V2X数据包的发送端。
第一V2X数据包由上层向接入层(access stratum，AS)递交传输。在单播通信中，V2X数据包为至少一个单播数据包，在广播通信或组播通信中，V2X数据包为至少一个广播或组播数据包。
第一链路为第一终端设备与其他终端设备之间的直连无线通信链路，示例性的，第一链路可以为侧链(sidelink，SL)，第一链路的默认DRB可以为默认(default)SL DRB。
第一链路的默认DRB是相对于第一链路的DRB来说的：
第一链路的DRB指第一终端设备中已经配置的DRB映射规则所能映射出的第一链路的DRB，该DRB映射规则中包括与该DRB所对应的V2X数据包的参数信息，包括QoS参数(例如，QoS流标识，如QFI或其他表示这个V2X数据包的标识)、通信类型(cast type)、目标地址(destination ID)信息、连接标识(connection ID)信息、资源配置模式信息等。通过将第一V2X数据包的参数信息与DRB映射规则中V2X数据包的参数信息进行匹配，则可以匹配到相同参数信息对应的第一链路的DRB。如果第一终端设备无法在该终端设备已配置或已存储的DRB映射规则中匹配到相同的V2X数据包的参数信息，则匹配失败。此时，将第一V2X数据包映射至第一链路的默认DRB。
示例性的，在本申请中的匹配V2X数据包或者V2X QoS流失败可以指的是该终 端设备中没有存储对应的DRB或者QoS rule，或者可以指的是该终端设备没有匹配到任何对应的DRB或者QoS rule。
示例性的，在本申请中的匹配或者映射动作的执行主体可以是该终端设备，也可以是该终端设备的上层，所述上层可以包括该终端设备的应用(APP)层、车联网(V2X)层、非接入层(Non-access stratum，NAS)中的至少一个。
对于在连接建立时就配置了第一链路的默认DRB的配置信息来说，当第一终端设备上层有第一V2X数据包待发送时，无需关心AS层是否有V2X数据包到第一链路的DRB的映射关系，上层的第一V2X数据包会直接向接入层(access stratum，AS)递交。第一终端设备会先将第一V2X数据包匹配已配置的第一链路的DRB，当匹配失败时，会将第一V2X数据包映射到第一链路的默认DRB上传输。
本申请实施例中，上述匹配失败还可以理解为没有存储第一链路的对应DRB。
第一链路的默认DRB的配置信息可以包括以下信息中的至少一个：第一指示信息、第一链路的默认DRB的标识信息、第一链路的默认DRB的各协议层的配置信息、与第一链路的默认DRB具有对应关系的V2X数据包的参数信息。
下面，对上述各信息进行详细说明。
第一指示信息用于指示所述配置信息为第一链路的默认DRB的配置信息。
参数信息包括QoS参数、通信类型信息、目标地址标识信息、连接标识信息、资源配置模式信息中的至少一个。
其中，QoS参数、目标地址标识信息、通信类型信息为V2X数据包所关联的参数信息。通信类型信息包括广播通信、组播通信、单播通信中的至少一种。连接标识信息是由第一终端设备根据V2X数据包关联的目标地址标识信息确定。资源配置模式信息包括第一种资源配置模式，和/或，第二种资源配置模式，其中，第一种资源配置模式包括：第一网络设备为第一终端设备配置第一链路传输资源；第二种资源配置模式包括：第一终端设备选择第一链路传输资源。
第一链路的默认DRB的各协议层的配置信息可以包括：第一链路的默认DRB的服务数据适配协议(service data adaptation protocol，SDAP)层配置、分组数据汇聚协议(packet data convergence protocol，PDCP)层配置、无线链路控制(radio link control，RLC)层配置、逻辑信道(logical channel，LCH)配置、RLC信道配置中的至少一个。
第一链路的默认DRB的SDAP层配置可以包括以下信息中的至少一个：映射到第一链路的默认DRB的QoS参数(例如，QoS流标识，如QFI或其他表示这个V2X数据包的标识)、通信类型(cast type)、目标地址(destination ID)信息、连接标识(connection ID)信息、资源配置模式信息等。其中，QoS参数可以包括以下信息中的至少一个：例如，QoS流标识(QoS flow identity，QFI)、第五代通信系统服务质量标识(5G QoS identifier，5QI)、车联网通信系统服务质量标识(V2X QoS identifier，VQI)、PC5口第五代通信系统服务质量标识(PC5 QoS identifier，PQI)、保证流量比特率(guaranteed flow bit rate，GFBR)、最大流量比特率(maximum flow bit rate，MFBR)、最小需求通信距离(minimum required communication range，range)、分配和保留优先级(allocation and retention priority，ARP)等。根据QoS参数的不同，V2X数据包可以包括未经过QoS规则映射的V2X数据包(例如，以PQI来标识)以及经 过QoS规则映射的V2X数据包(例如，以QFI来标识)。
可选的，第一指示信息可以位于第一链路的默认DRB的SDAP层配置中。
PDCP层配置可以包括以下信息中的至少一项：用于控制一个PDCP服务数据单元(service data unit，SDU)在PDCP缓存中可存储的时间的定时器(discardTimer)；用于在重排序功能中等待乱序数据包的定时器(t-Reordering)；PDCP层是否可以向上层乱序递交数据包；PDCP层是否采用SL数据压缩，以及SL数据压缩的相关配置，例如压缩缓存的大小，压缩采用的字典等；PDCP层PDU采用的序列号(sequence number，SN)长度；PDCP实体采用的安全配置，包括是否采用加密和/或完整性保护；PDCP实体采用的安全算法(完整性保护算法和加密算法)和/或密钥等；PDCP是否采用复制(duplication)机制以及复制配置，如果采用复制机制，则该PDCP实体会对应两个或多个RLC实体和LCH，这里的复制机制是指PDCP实体对PDCP PDU进行复制，并递交到关联的两个或多个RLC实体进行处理和传输；PDCP层头压缩算法的相关配置，如是否采取头压缩等。
RLC配置可以包括以下信息中的至少一个：RLC实体采用的模式，例如，确认模式(acknowledge mode，AM)、非确认模式(unacknowledge mode，UM)和透明模式(transparent mode，TM)模式。
如果发送RLC实体被配置采用AM模式，RLC层配置还包括以下信息中的至少一个：RLC层PDU的SN长度，控制发起轮询(poll)重传的定时器(t-PollRetransmit)，控制发送多少个RLC PDU后需要发起轮询的参数(pollPDU)，控制发送多少字节RLC PDU后需要发起轮询的参数(pollByte)，RLC层最大重传次数(maxRetxThreshold)。其中，轮询(poll)是指发送端AM RLC实体通过MAC PDU中的轮询比特位(poll bit)指示接收端AM RLC实体进行状态报告反馈。如果接收RLC实体被配置采用AM模式，RLC层配置还包括以下信息中的至少一个：RLC层PDU的SN长度，控制RLC层等待分段的定时器(t-Reassembly)，控制RLC层避免频繁发送状态报告的定时器(t-StatusProhibit)。
如果发送RLC实体被配置采用UM模式，RLC层配置还包括以下至少一项：RLC层PDU的SN长度。如果接收RLC实体被配置采用UM模式，RLC层配置还包括以下信息中的至少一个：RLC层PDU的SN长度，控制RLC层等待分段的定时器(t-Reassembly)。
LCH配置可以包括以下信息的至少一个：LCH标识，LCH所属的逻辑信道组标识，进行逻辑信道优先级处理的相关参数(优先级、优先比特速率PBR、令牌桶大小持续时间)，可以传输该LCH中数据的载波信息，可以传输该LCH中数据的资源配置模式信息(mode 1或mode 2，或者，mode1和mode2)，可以传输该LCH中数据的资源的numerology信息(如子载波间隔、循环前缀长度、资源时域持续时间、是否可以是配置授权资源等)，控制该LCH是否可以触发SR的参数(SR-mask)，控制该LCH是否可以延迟触发SR的参数(SR-DelayTimerApplied)。
在一种可能的实施方式中，第一网络设备可以确定第一链路的默认DRB的配置信息，还可以向第一终端设备发送第一链路的默认DRB的配置信息，相应地，第一终端设备可以从第一网络设备接收第一链路的默认DRB的配置信息。例如，以第一链路的 默认DRB为默认(default)SL DRB，第一链路的DRB为SL DRB为例进行说明，第一终端设备可以向第一网络设备发送SL DRB建立请求消息以请求建立SL DRB，或者，第一网络接收到核心网设备配置的QoS配置文件(QoS profiles)(配置文件中包括第一终端设备的V2X数据包所对应的QoS参数)，第一网络设备向第一终端设备发送SL DRB配置消息以配置SL DRB的配置信息，在该消息中可以一并携带default SL DRB的配置信息。
在另一种可能的实施方式中，第一终端设备可以存储有预配置的第一链路的默认DRB的配置信息。可选的，设备厂商可以在第一终端设备出厂前存储该第一链路的默认DRB的配置信息在第一终端设备中，或者，第一终端设备在接入网络时就获取该第一链路的默认DRB的配置信息。
需要说明的是，第一终端设备从第一网络设备接收的(也可以称为“第一网络设备向第一终端设备发送的”)第一链路的默认DRB的配置信息的优先级高于第一终端设备中预配置的第一链路的默认DRB的配置信息的优先级。示例性的，第一网络设备发送的第一链路的默认DRB的配置信息可以携带在系统信息广播或RRC专用信令(例如RRC重配置(reconfigration)消息)中，RRC专用信令中第一链路的默认DRB的配置信息的优先级高于系统信息广播中第一链路的默认DRB的配置信息的优先级，并且系统信息广播中第一链路的默认DRB的配置信息的优先级高于第一终端设备中预配置的第一链路的默认DRB的配置信息的优先级。
示例性的，假设初始状态下，第一终端设备中预配置了第一链路的默认DRB的配置信息，随着业务量增多，第一网络设备根据具体业务向第一终端设备配置新的第一链路的默认DRB的配置信息，则会覆盖第一终端设备中预配置的第一链路的默认DRB的配置信息，第一终端设备将以第一网络设备配置的新的第一链路的默认DRB的配置信息为准。
S502、第一终端设备将满足预设条件的第一V2X数据包映射至第一链路的默认DRB。
其中，满足预设条件包括第一终端设备匹配第一V2X数据包到第一链路的DRB失败。
进一步的，第一终端设备可以将具有步骤S501中所述的参数信息且满足预设条件的第一V2X数据包映射至第一链路的默认DRB。
也就是说，第一终端设备可以将具有与第一链路的默认DRB具有对应关系的V2X数据包的参数信息且满足预设条件的第一V2X数据包映射至第一链路的默认DRB。第一终端设备后续可以向网络设备隐式指示有数据在第一链路的默认DRB上传输。
另外，多个V2X数据包可以映射到同一个DRB。示例性的，多个V2X数据包可以映射到同一个默认DRB。
需要说明的是，步骤S502可以在第一终端设备的SDAP层实现。
本申请实施例提供的通信方法，第一终端设备获取第一链路的默认DRB的配置信息，第一终端设备为第一V2X数据包的发送端。第一终端设备将满足预设条件的第一V2X数据包映射至第一链路的默认DRB。其中，满足预设条件包括第一终端设备匹配第一V2X数据包到第一链路的DRB失败。也就是说，当作为发送端的第一终端设备 匹配第一V2X数据包到第一链路的DRB失败时，将第一V2X数据包映射至第一链路的默认DRB，在第一链路的默认DRB上传输第一V2X数据包。终端设备配置默认DRB，使得根据DRB的配置信息无法将V2X数据包映射到相应的DRB时，映射到默认DRB，因此，终端设备不必再与网络设备交互以获取相应的DRB的配置信息，从而减少业务传输时延。
可选的，如图6所示，该方法还可以包括：
S503、第一终端设备向第二终端设备发送第一链路的默认DRB的配置信息。
其中，第二终端设备为第一V2X数据包的接收端。
在一种可能的实施方式中，当上层连接建立时，第一终端设备可以通过PC5-S信令向第二终端设备发送第一链路的默认DRB的配置信息，相应地，第二终端设备可以通过PC5-S信令向第一终端设备发送上述配置信息的确认消息。
在另一种可能的实施方式中，当无线资源控制(radio resource control，RRC)连接建立时,第一终端设备可以通过RRC连接建立请求消息向第二终端设备发送第一链路的默认DRB的配置信息，相应地，第二终端设备可以通过RRC连接建立响应消息向第一终端设备发送上述配置信息的确认消息。或者，第一终端设备可以通过RRC重配置消息向第二终端设备发送第一链路的默认DRB的配置信息，相应地，第二终端设备可以通过RRC重配置响应消息向第一终端设备发送上述配置信息的确认消息。
第一链路的默认DRB的配置信息可以包括V2X数据包的发送端需要的DRB配置信息，和/或，V2X数据包的接收端需要的DRB配置信息。
进一步的，V2X数据包为组播或广播数据包，第一链路的DRB的配置信息包括V2X数据包的发送端需要的DRB配置信息，相应地，第一终端设备可以向第二终端设备发送V2X数据包的接收端需要的DRB配置信息，第二终端设备可以根据第一链路的默认DRB接收满足预设条件的第一V2X数据包。或者，V2X数据包为单播数据包，第一链路的默认DRB的配置信息包括V2X数据包的发送端需要的DRB配置信息和V2X数据包的接收端需要的DRB配置信息，相应地，第一终端设备可以向第二终端设备发送V2X数据包的发送端需要的DRB配置信息和V2X数据包的接收端需要的DRB配置信息，第二终端设备可以将满足预设条件的第二V2X数据包映射至第一链路的默认DRB；第一终端设备可以根据第一链路的默认DRB接收满足预设条件的第二V2X数据包。
需要说明的是，对于第二终端设备来说，来自第一终端设备的V2X数据包的发送端需要的DRB配置信息和V2X数据包的接收端需要的DRB配置信息的优先级，高于第二终端设备中配置的V2X数据包的发送端需要的DRB配置信息和V2X数据包的接收端需要的DRB配置信息的优先级。第二终端设备中配置的V2X数据包的发送端需要的DRB配置信息和V2X数据包的接收端需要的DRB配置信息可以包括第二终端设备从第三网络设备接收的V2X数据包的发送端需要的DRB配置信息和V2X数据包的接收端需要的DRB配置信息，或者，第二终端设备在出厂时预配置的V2X数据包的发送端需要的DRB配置信息和V2X数据包的接收端需要的DRB配置信息。
可选的，第二终端设备还可以为第二V2X数据包的发送端。相应地，第一终端设备还可以为第二V2X数据包的接收端。第二终端设备可以将满足预设条件的第二V2X 数据包映射至第一链路的默认DRB；第一终端设备可以根据第一链路的默认DRB接收满足预设条件的第二V2X数据包。
也就是说，第一终端设备和第二终端设备之间的第一链路的默认DRB可以是单向的，也可以是双向的。双向的意思就是该第一链路的默认DRB不管对于第一终端设备至第二终端设备方向的数据传输还是对于第二终端设备至第一终端设备方向的数据传输都同样有效。此时，第一终端设备向第二终端设备发送的第一链路的默认DRB的配置信息既包含第一终端设备侧需要知道的配置参数，也包含第二终端设备侧需要知道的配置参数。
另外，对于第一链路的默认DRB是双向时，第二终端设备可以向所属的网络设备发送第一链路的默认DRB的配置信息，例如，以第一链路的默认DRB为default SL DRB为例，第二终端设备可以通过RRC消息向所属的网络设备发送第一链路的默认DRB的配置信息。对于第一链路的默认DRB是单向时，第二终端设备不必向所属的网络设备发送第一链路的默认DRB的配置信息。
另外，如果第一终端设备中预配置的第一链路的默认DRB的配置信息对于网络中所有终端设备都是通用的，则单播通信中第一终端设备与第二终端设备之间不需要交互第一链路的默认DRB的配置信息；否则，单播通信的第一终端设备与第二终端设备需要在第一链路上交互第一链路的默认DRB的配置信息。
可选的，如图7所示，该方法还可以包括：
S504、第一终端设备向第二网络设备发送已映射至第一链路的默认DRB的V2X数据包的参数信息中的至少一个信息。
相应地，第二网络设备从第一终端设备接收已映射至第一链路的默认DRB的V2X数据包的参数信息中的至少一个信息。
也就是说，当有V2X数据包在第一链路的默认DRB上传输时，第一终端设备可以向第二网络设备上报第一链路的默认DRB的配置信息，触发第二网络设备指示第一终端设备更新第一链路的DRB的配置信息。
S505、第二网络设备根据参数信息中的至少一个信息确定V2X数据包到第一链路的DRB的映射规则以及第一链路的DRB的配置信息。
其中，V2X数据包到第一链路的DRB的映射规则(QoS flow to DRB mapping rule)中包括以下信息中的至少一个：第一链路的DRB的标识信息、与第一链路的DRB具有对应关系的V2X数据包的参数信息；第一链路的DRB的配置信息包括第一链路的DRB的标识信息和第一链路的DRB的各协议层的配置信息。
V2X数据包到所述第一链路的DRB的映射规则以及第一链路的DRB的配置信息可以携带在RRC消息中(例如，SL DRB配置更新消息)。
S506、第二网络设备向第一终端设备发送V2X数据包到第一链路的DRB的映射规则以及第一链路的DRB的配置信息。
相应地，第一终端设备接收来自于第二网络设备的V2X数据包到所述第一链路的DRB的映射规则以及第一链路的DRB的配置信息。V2X数据包到所述第一链路的DRB的映射规则以及第一链路的DRB的配置信息用于更新第一终端设备中配置的第一链路的DRB的配置信息。
需要说明的是，第一网络设备、第二网络设备可以是同一个网络设备也可以是不同的网络设备。
在V2X通信中，如果终端设备未配置到能够将V2X QoS流映射到相应的DRB的配置信息，则终端设备需要与网络设备交互以获取对应的DRB的配置信息，才能将V2X QoS流映射到相应的DRB，增加了业务传输时延。本申请实施例提供的通信方法和终端设备，为终端设备配置默认DRB的配置信息，当终端设备无法根据已有DRB的配置信息将V2X数据包，和/或，V2X QoS流映射到相应的DRB时，均按照默认DRB的配置信息将V2X数据包，和/或，V2X QoS流映射到默认DRB，在默认DRB上传输V2X数据包，和/或，V2X QoS流之前，不必再与网络设备交互以获取对应的DRB的配置信息，因此，不会增加业务传输时延。
同理的，在V2X通信中，如果终端设备未匹配到QoS规则的配置信息，该QoS规则能够将互联网协议或者以太网数据包映射到相应的V2X QoS流，则终端设备需要与网络设备交互以获取对应的QoS规则的配置信息，才能将互联网协议或者以太网数据包映射到相应的V2X QoS流，增加了业务传输时延。本申请实施例提供的通信方法和终端设备，为终端设备配置默认QoS规则的配置信息，当终端设备无法根据已有QoS规则的配置信息将互联网协议或者以太网数据包映射到相应的或V2X QoS流时，均按照默认QoS规则的配置信息将互联网协议或者以太网数据包映射到默认QoS规则对应的V2X QoS流，不必再与网络设备交互以获取对应的QoS规则的配置信息，因此，不会增加业务传输时延。
具体的，如图8所示，本申请实施例提供了另一种通信方法，该方法包括：
S801、终端设备获取第一链路的默认QoS规则(default QoS rule)的配置信息。
其中，第一链路为终端设备与其他终端设备之间的直连无线通信链路。
第一链路的默认QoS规则是相对于第一链路的QoS规则来说的：第一链路的QoS规则一般可以过滤一种第一链路数据包，并将第一链路数据包映射至对应的V2X QoS流，但是第一链路的默认QoS规则能够过滤所有的第一链路数据包，并将第一链路数据包映射至第一链路的默认QoS规则对应的V2X QoS流，即终端设备始终能将第一链路数据包映射到与QoS参数关联的V2X QoS流。
第一链路的默认QoS规则(default QoS rule)的配置信息可以包括：V2X QoS流关联的QoS参数、一组数据包过滤集、一个优先级值；其中一组数据包过滤集包含一个或多个数据包过滤准则，用来选择出满足条件的第一链路数据包；其中优先级值是QoS规则的匹配优先级，例如多个QoS规则存在时，第一链路数据包优先和优先级值较低所关联的QoS规则匹配。
终端设备获取第一链路的默认QoS规则的配置信息，可以包括以下任一种或任几种：
在一种可能的实施方式中，终端设备可以从V2X控制网元或核心网设备获取第一链路的默认QoS规则的配置信息。例如，终端设备可以通过授权和服务配置过程(authorization and service provisioning procedure)V2X控制网元或核心网设备获取第一链路的默认QoS规则的配置信息。
也就是说，终端设备初始入网时，由V2X控制网元或核心网设备为终端设备配置 给子集配置一些策略(policy)，该策略包括但不限于第一链路的默认QoS规则的配置信息，还可以包括可以使用哪些载波，可以在哪些区域工作等等，使得终端设备可以使用V2X服务。
和/或，在另一种可能的实施方式中，终端设备可以存储有预配置的第一链路的默认QoS规则的配置信息。此时，终端设备也可以称为终端设备的上层，所述上层包括应用(APP)层、车联网(V2X)层、非接入层(Non-access stratum，NAS)中的至少一个。
需要说明的是，终端设备从V2X控制网元或核心网设备获取获取的第一链路的默认QoS规则的配置信息的优先级高于终端设备中预配置的第一链路的默认QoS规则的配置信息的优先级。
示例性的，假设初始状态下，终端设备中预配置了第一链路的默认QoS规则的配置信息，随着业务量增多，V2X控制网元或核心网设备根据具体业务向终端设备配置新的第一链路的默认QoS规则的配置信息，终端设备将以V2X控制网元或核心网设备配置的新的第一链路的默认QoS规则的配置信息为准。
S802、终端设备根据第一链路的默认QoS规则的配置信息，将匹配第一链路的QoS规则失败的第一链路数据包映射至第一链路的默认QoS规则对应的V2X QoS流。
其中，V2X QoS流关联有QoS参数。
第一链路数据包可以为互联网协议(internet protocol，IP)或者以太网(Ethernet)数据包。
QoS参数包括以下信息中的至少一项：QoS流标识、PQI、VQI、5QI、保证流量比特率GFBR、MFBR、最小需求通信距离、ARP等。
第一链路的QoS规则和第一链路的默认QoS规则具有优先级值，其中，第一链路的默认QoS规则具有最大的优先级值。
也就是说，第一链路的默认QoS规则的优先级低于第一链路的QoS规则的优先级，第一链路的默认QoS规则一般用于非保证比特速率(non guaranteed bit rate，Non-GBR)业务。该优先级指第一链路数据包与第一链路的QoS规则或第一链路的默认QoS规则匹配的优先级。
本申请实施例中，上述匹配失败还可以理解为没有存储第一链路的对应QoS规则。
本申请实施例提供的通信方法，终端设备获取第一链路的默认QoS规则(default QoS rule)的配置信息，终端设备根据配置信息，将匹配第一链路的QoS规则失败的第一链路数据包映射至第一链路的默认QoS规则对应的V2X QoS流。终端设备不必再与网络设备交互以获取对应的QoS规则的配置信息，因此，不会增加业务传输时延。
可选的，如图9所示，该方法还可以包括：
S803、网络设备获取V2X QoS流关联的QoS参数。
其中，该V2X QoS流与第一链路的默认QoS规则对应,该V2X QoS流用于映射匹配第一链路的QoS规则失败的第一链路数据包。
在一种可能的实施方式中，终端设备可以向网络设备发送V2X QoS流关联的QoS参数，相应地，网络设备从终端设备接收V2X QoS流关联的QoS参数。例如，终端设备可以在RRC消息(例如，sidelinkUEinformation消息，或者，新定义的其他RRC 消息)中向网络设备发送V2X QoS流关联的QoS参数。
在另一种可能的实施方式中，网络设备从核心网设备接收V2X QoS流关联的QoS参数。例如，网络设备通过服务授权(Service Authorization)过程从核心网设备接收V2X QoS流关联的QoS参数。
S804、网络设备根据V2X QoS流关联的QoS参数，为终端设备配置第一链路的DRB，和/或，第一链路的默认DRB。
其中，第一链路的默认DRB用于映射满足预设条件的V2X QoS流，满足预设条件包括匹配V2X QoS流到第一链路的DRB失败，其中，第一链路为终端设备与其他终端设备之间的直连无线通信链路。
网络设备可以将第一链路的DRB，和/或，第一链路的默认DRB的配置信息发送给终端设备，用于通过增加第一链路的DRB，和/或，第一链路的默认DRB来完善终端设备中配置的第一链路的DRB的配置信息，和/或，第一链路的默认DRB的配置信息。相应地，终端设备从网络设备接收第一链路的DRB，和/或，第一链路的默认DRB的配置信息。
需要说明的是，网络设备为不同终端设备配置的第一链路的DRB，和/或，第一链路的默认DRB可以相同，或者，可以针对不同终端设备而不同。
可以理解的是，以上各个实施例中，由终端设备实现的方法和/或步骤，也可以由可用于终端设备的部件(例如芯片或者电路)实现，由网络设备实现的方法和/或步骤，也可以由可用于网络设备的部件实现。
上述主要从各个网元之间交互的角度对本申请实施例提供的方案进行了介绍。相应的，本申请实施例还提供了通信装置，该通信装置用于实现上述各种方法。该通信装置可以为上述方法实施例中的终端设备、第一终端设备、第二终端设备，或者包含上述终端设备的装置，或者为可用于上述终端设备的部件；或者，该通信装置可以为上述方法实施例中的第一网络设备、第二网络设备，或者包含上述网络设备的装置，或者为可用于上述网络设备的部件。可以理解的是，该通信装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法实施例中对通信装置进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，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。
比如，以通信装置为上述方法实施例中的终端设备、第一终端设备或第二终端设备为例。图10示出了一种终端设备100的结构示意图。该终端设备100包括处理模块1001和收发模块1002。收发模块1002，也可以称为收发单元用以实现发送和/或接收 功能，例如可以是收发电路，收发机，收发器或者通信接口。
处理模块1001用于获取第一链路的默认数据无线承载DRB的配置信息，其中，第一终端设备为第一车联网V2X数据包的发送端，第一链路为第一终端设备与其他终端设备之间的直连无线通信链路；处理模块1001还用于将满足预设条件的第一V2X数据包映射至第一链路的默认DRB，其中，满足预设条件包括第一终端设备匹配第一V2X数据包到第一链路的DRB失败。
可选的，收发模块1002用于从第一网络设备接收第一链路的默认DRB的配置信息，和/或，处理模块1001还用于存储有预配置的第一链路的默认DRB的配置信息。
可选的，收发模块1002从第一网络设备接收的第一链路的默认DRB的配置信息的优先级高于处理模块1001中预配置的第一链路的默认DRB的配置信息的优先级。
可选的，第一链路的默认DRB的配置信息包括V2X数据包的发送端需要的DRB配置信息，和/或，V2X数据包的接收端需要的DRB配置信息。
可选的，第一链路的默认DRB的配置信息包括V2X数据包的发送端需要的DRB配置信息，和/或，V2X数据包的接收端需要的DRB配置信息，包括，V2X数据包为组播或广播数据包，第一链路的默认DRB的配置信息包括V2X数据包的发送端需要的DRB配置信息；或者，V2X数据包为单播数据包，第一链路的默认DRB的配置信息包括V2X数据包的发送端需要的DRB配置信息和V2X数据包的接收端需要的DRB配置信息。
可选的，收发模块1002还用于向第二终端设备发送V2X数据包的接收端需要的DRB配置信息；或者，收发模块1002还用于向第二终端设备发送V2X数据包的发送端需要的DRB配置信息和V2X数据包的接收端需要的DRB配置信息；其中，第二终端设备为第一V2X数据包的接收端。
可选的，第一终端设备的收发模块1002向第二终端设备发送V2X数据包的接收端需要的DRB配置信息，还包括:第二终端设备的收发模块1002根据第一链路的默认DRB接收满足预设条件的第一V2X数据包。
可选的，第一终端设备的收发模块1002向第二终端设备发送V2X数据包的发送端需要的DRB配置信息和V2X数据包的接收端需要的DRB配置信息，还包括:第二终端设备还为第二V2X数据包的发送端，第一终端设备还为第二V2X数据包的接收端；第二终端设备的处理模块1001还用于将满足预设条件的第二V2X数据包映射至第一链路的默认DRB；第一终端设备的收发模块1002还用于根据第一链路的默认DRB接收满足预设条件的第二V2X数据包。
可选的，V2X数据包具有参数信息，参数信息包括QoS参数、通信类型信息、目标地址标识信息、连接标识信息、资源配置模式信息中的至少一个。
可选的，其中，QoS参数、目标地址标识信息、通信类型信息为V2X数据包所关联的参数信息；通信类型信息包括广播通信、组播通信、单播通信中的至少一种；连接标识信息是由第一终端设备根据V2X数据包关联的目标地址标识信息确定；资源配置模式信息包括第一种资源配置模式，和/或，第二种资源配置模式，其中，第一种资源配置模式包括：第一网络设备为第一终端设备配置第一链路传输资源，示例性的，为第一模式；第二种资源配置模式包括：第一终端设备选择第一链路传输资源，示例 性的，为第二模式。
其中，在车联网中，以第一终端设备与第二终端设备为例，两个终端设备之间的进行无线直连通信的SL通信资源可以由网络设备进行调度，示例性的，终端设备在网络设备覆盖范围内，终端设备与终端设备之间的无线直连通信过程受网络设备控制，作为数据发送端的第一终端设备可以是在网络设备配置的SL通信资源上发送控制信号和数据信号给作为数据接收端的第二终端设备。这种基站调度SL传输资源的模式可以称之为第一模式；示例性的，网络设备可以通过下行控制信息(downlink control information，DCI)调度边链路传输资源，即，网络设备可以动态调度边链路资源；或者，网络设备配置授权(configured grant)的边链路传输资源，即，网络设备可以半静态配置边链路资源。可选的，该第一模式可以是目前第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)制定的标准中所规定的mode1资源配置模式或者mode3资源配置模式。
第一终端设备与第二终端设备之间的进行无线直连通信的SL通信资源也可以不受网络设备调度控制，而是由终端设备自行确定，示例性的，终端设备在网络设备通信覆盖范围内，网络设备通过系统广播(System Information Block，SIB)消息或终端设备专用无线资源控制(Radio Resource Control，RRC)信令为终端设备配置SL资源池，作为数据发送端的第一终端设备可以自主从SL资源池中获取SL通信资源来发送控制信号和数据信号给作为数据接收端的第二终端设备；或者，示例性的，终端设备在网络设备通信覆盖范围外，作为数据发送端的第一终端设备自主从预配置的SL资源池中获取边链路通信资源来发送控制信号，和/或，数据信号给作为数据接收端的第二终端设备。可选的，第一终端设备通过自身监测信道的忙闲状态来寻找SL资源池中的合适的SL通信资源来发送控制信号，和/或，数据信号。可选的，第一终端设备通过和别的终端设备竞争获得SL资源池中的合适的SL通信资源来发送控制信号，和/或，数据信号，终端设备中待传输的V2X业务的优先级越高，其竞争到SL资源池中的合适的SL通信资源的机会就越大。可选的，第一终端设备还可以预存储SL资源池信息，或者，在第一终端设备接入网络时由网络设备预配置SL资源池。这种终端设备自行确定SL传输资源的模式可以称之为第二模式；示例性的，终端设备感知或竞争边链路传输资源。可选的，该第二模式可以是目前3GPP制定的标准中所规定的mode2资源配置模式或者mode4资源配置模式。
可选的，第一链路的默认DRB的配置信息包括以下信息中的至少一个：第一指示信息、第一链路的默认DRB的标识信息、第一链路的默认DRB的各协议层的配置信息、与第一链路的默认DRB具有对应关系的V2X数据包的参数信息；其中，第一指示信息用于指示配置信息为第一链路的默认DRB的配置信息。
可选的，第一链路的默认DRB的各协议层的配置信息包括第一链路的默认DRB的服务数据适配协议SDAP层配置、分组数据汇聚协议PDCP层配置、无线链路控制RLC层配置、逻辑信道LCH配置、RLC信道配置中的至少一个。
可选的，处理模块1001具体用于将具有与第一链路的默认DRB具有对应关系的V2X数据包的参数信息且满足预设条件的第一V2X数据包映射至第一链路的默认DRB。
可选的，收发模块1002还用于向第二网络设备发送已映射至第一链路的默认DRB的V2X数据包的参数信息中的至少一个信息。
可选的，收发模块1002还用于接收来自于第二网络设备的V2X数据包到第一链路的DRB的映射规则以及第一链路的DRB的配置信息，V2X数据包到第一链路的DRB的映射规则中包括以下信息中的至少一个：第一链路的DRB的标识信息、与第一链路的DRB具有对应关系的V2X数据包的参数信息；第一链路的DRB的配置信息包括第一链路的DRB的标识信息和第一链路的DRB的各协议层的配置信息。
处理模块1001还用于获取第一链路的默认服务质量QoS规则的配置信息，其中，第一链路为终端设备与其他终端设备之间的直连无线通信链路；处理模块1001还用于根据配置信息，将匹配第一链路的QoS规则失败的第一链路数据包映射至第一链路的默认QoS规则对应的V2X QoS流，其中，V2X QoS流关联有QoS参数。
可选的，QoS参数包括以下信息中的至少一项：QoS流标识、PC5口第五代通信系统服务质量标识PQI、车联网通信系统服务质量标识VQI、第五代通信系统服务质量标识5QI、保证流量比特率GFBR、最大流量比特率MFBR、最小需求通信距离、分配和保留优先级ARP。
可选的，所有第一链路的QoS规则和第一链路的默认QoS规则具有优先级值，其中，第一链路的默认QoS规则具有最大的优先级值。
可选的，还包括：第一链路的默认QoS规则能够过滤所有的第一链路数据包，并将第一链路数据包映射至第一链路的默认QoS规则对应的V2X QoS流。
可选的，收发模块1002还用于向网络设备发送QoS参数，其中，QoS参数用于网络设备为终端设备配置第一链路的DRB，和/或，第一链路的默认DRB，第一链路的默认DRB用于映射满足预设条件的V2X QoS流，满足预设条件包括匹配V2X QoS流到第一链路的DRB失败。
可选的，收发模块1002还用于从所述网络设备接收第一链路的DRB，和/或，第一链路的默认DRB的配置信息，该处理模块1001将该第一链路的默认QoS规则对应的V2X QoS流映射至该第一链路的DRB，和/或，该第一链路的默认DRB。
可选的，处理模块1001用于获取第一链路的默认服务质量QoS规则的配置信息，包括以下任一种或任几种：收发模块1002还用于从V2X控制网元或核心网设备获取配置信息，和/或，处理模块1001用于具体用于存储有预配置的配置信息。
可选的，收发模块1002从V2X控制网元或核心网设备获取的配置信息的优先级高于终端设备中预配置的配置信息的优先级。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述或前述方法侧描述，在此不再赘述。
在本实施例中，该终端设备200以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指特定ASIC，电路，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。在一个简单的实施例中，本领域的技术人员可以想到该终端设备200可以采用图2所示的终端设备105的形式。
比如，图2所示的终端设备105中的处理器180可以通过调用存储器120中存储 的计算机执行指令，使得终端设备105执行上述方法实施例中的通信方法。
具体的，图10中的处理模块1001和收发模块1002的功能/实现过程可以通过图3所示的终端设备105中的处理器180调用存储器120中存储的计算机执行指令来实现。或者，图10中的处理模块1001的功能/实现过程可以通过图3所示的终端设备105中的处理器180调用存储器120中存储的计算机执行指令来实现，图10中的收发模块1002的功能/实现过程可以通过图3中所示的终端设备105中的RF电路110来实现。
由于本实施例提供的终端设备105可执行上述通信方法，因此其所能获得的技术效果可参考上述方法实施例，在此不再赘述。
或者，比如，以通信装置为上述方法实施例中的网络设备、第一网络设备或第二网络设备为例。图11示出了一种网络设备110的结构示意图。该网络设备110包括处理模块1101和收发模块1102。收发模块1102，也可以称为收发单元用以实现发送和/或接收功能，例如可以是收发电路，收发机，收发器或者通信接口。
处理模块1101，用于确定第一链路的默认数据无线承载DRB的配置信息，其中，第一链路为第一终端设备与其他终端设备之间的直连无线通信链路，第一终端设备为第一车联网V2X数据包的发送端；收发模块1102，用于向第一终端设备发送第一链路的默认DRB的配置信息。
可选的，收发模块1102向第一终端设备发送的第一链路的默认DRB的配置信息的优先级高于第一终端设备中预配置的第一链路的默认DRB的配置信息的优先级。
收发模块1102，用于从第一终端设备接收已映射至第一链路的默认数据无线承载DRB的车联网V2X数据包的参数信息中的至少一个信息，其中，第一终端设备为第一V2X数据包的发送端，第一链路为第一终端设备与其他终端设备之间的直连无线通信链路；处理模块1101，用于根据参数信息中的至少一个信息确定V2X数据包到第一链路的DRB的映射规则以及第一链路的DRB的配置信息，V2X数据包到第一链路的DRB的映射规则中包括以下信息中的至少一个：第一链路的DRB的标识信息、与第一链路的DRB具有对应关系的V2X数据包的参数信息；第一链路的DRB的配置信息包括第一链路的DRB的标识信息和第一链路的DRB的各协议层的配置信息。
可选的，收发模块1102，还用于向第一终端设备发送V2X数据包到第一链路的DRB的映射规则以及第一链路的DRB的配置信息。
处理模块1101，用于获取车联网V2X QoS流关联的QoS参数，其中，V2X QoS流与第一链路的默认QoS规则对应,V2X QoS流用于映射匹配第一链路的QoS规则失败的第一链路数据包；处理模块1101，还用于根据QoS参数，为终端设备配置第一链路的数据无线承载DRB，和/或，第一链路的默认DRB，其中，第一链路的默认DRB用于映射满足预设条件的V2X QoS流，满足预设条件包括匹配V2X QoS流到第一链路的DRB失败，其中，第一链路为终端设备与其他终端设备之间的直连无线通信链路。
可选的，QoS参数包括以下信息中的至少一项：QoS流标识、PC5口第五代通信系统服务质量标识PQI、车联网通信系统服务质量标识VQI、第五代通信系统服务质量标识5QI、保证流量比特率GFBR、最大流量比特率MFBR、最小需求通信距离、分配和保留优先级ARP。
可选的，处理模块1101，用于获取车联网V2X QoS流关联的QoS参数，包括： 收发模块1102，还用于从终端设备接收QoS参数。
可选的，处理模块1101，用于获取车联网V2X QoS流关联的QoS参数，包括：收发模块1102，还用于从核心网设备接收QoS参数。
可选的，第一链路数据包为互联网协议或者以太网数据包。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述或前述方法侧描述，在此不再赘述。
在本实施例中，该网络设备110以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指特定ASIC，电路，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。在一个简单的实施例中，本领域的技术人员可以想到该网络设备110可以采用图4所示的网络设备200的形式。
比如，图4所示的网络设备200中的处理器201可以通过调用存储器202中存储的计算机执行指令，使得网络设备200执行上述方法实施例中的通信方法。
具体的，图11中的处理模块1101和收发模块1102的功能/实现过程可以通过图4所示的网络设备200中的处理器201调用存储器202中存储的计算机执行指令来实现。或者，图11中的处理模块1101的功能/实现过程可以通过图4所示的网络设备200中的处理器201调用存储器202中存储的计算机执行指令来实现，图11中的收发模块1102的功能/实现过程可以通过图4中所示的网络设备200中的通信接口203来实现。
由于本实施例提供的网络设备110可执行上述通信方法，因此其所能获得的技术效果可参考上述方法实施例，在此不再赘述。
本申请实施例还提供一种通信装置，包括：处理器和存储器，所述存储器用于存储程序，所述处理器调用存储器存储的程序，以使通信装置执行图5-图9中的终端设备、第一终端设备或第二终端设备的通信方法。
本申请实施例还提供一种通信装置，包括：处理器和存储器，所述存储器用于存储程序，所述处理器调用存储器存储的程序，以使通信装置执行图5-图9中的网络设备、第一网络设备或第二网络设备的通信方法。
本申请实施例还提供了一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当该指令在计算机或处理器上运行时，使得计算机或处理器执行图5-图9中终端设备、第一终端设备或第二终端设备，或者，网络设备、第一网络设备或第二网络设备的通信方法。
本申请实施例还提供了一种包含指令的计算机程序产品，当指令在计算机或处理器上运行时，使得计算机或处理器执行图5-图9中的终端设备、第一终端设备或第二终端设备，或者，网络设备、第一网络设备或第二网络设备的通信方法。
本申请实施例提供了一种芯片系统，该芯片系统包括处理器，用于通信装置执行图5-图9中的终端设备、第一终端设备或第二终端设备的通信方法。例如，第一终端设备获取第一链路的默认数据无线承载DRB的配置信息，其中，第一终端设备为第一车联网V2X数据包的发送端，第一链路为第一终端设备与其他终端设备之间的直连无线通信链路；第一终端设备将满足预设条件的第一V2X数据包映射至第一链路的默认DRB，其中，满足预设条件包括第一终端设备匹配第一V2X数据包到第一链路的DRB 失败。
在一种可能的设计中，该芯片系统还包括存储器，该存储器，用于保存终端设备必要的程序指令和数据。该芯片系统，可以包括芯片，集成电路，也可以包含芯片和其他分立器件，本申请实施例对此不作具体限定。
本申请实施例提供了一种芯片系统，该芯片系统包括处理器，用于通信装置执行图5-图9中的网络设备、第一网络设备或第二网络设备的通信方法。例如，第一网络设备确定第一链路的默认数据无线承载DRB的配置信息，其中，第一链路为第一终端设备与其他终端设备之间的直连无线通信链路，第一终端设备为第一车联网V2X数据包的发送端；第一网络设备向第一终端设备发送第一链路的默认DRB的配置信息。
在一种可能的设计中，该芯片系统还包括存储器，该存储器，用于保存网络设备必要的程序指令和数据。该芯片系统，可以包括芯片，集成电路，也可以包含芯片和其他分立器件，本申请实施例对此不作具体限定。
其中，本申请提供的通信装置、计算机存储介质、计算机程序产品或芯片系统均用于执行上文所述的通信方法，因此，其所能达到的有益效果可参考上文所提供的实施方式中的有益效果，此处不再赘述。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、设备和方法，可以通过其它的方式实现。例如，以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，设备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。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件程序实现时，可以全部或部分地以计算机程序产品的形式来实现。该 计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或者数据中心通过有线(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可以用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)，光介质(例如，DVD)、或者半导体介质(例如固态硬盘(Solid State Disk，SSD))等。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (29)

  1. 一种通信方法，其特征在于，包括：
    第一终端设备获取第一链路的默认数据无线承载DRB的配置信息，其中，所述第一终端设备为第一车联网V2X数据包的发送端，所述第一链路为所述第一终端设备与其他终端设备之间的直连无线通信链路；
    所述第一终端设备将满足预设条件的所述第一V2X数据包映射至所述第一链路的默认DRB，其中，所述满足预设条件包括所述第一终端设备匹配所述V2X数据包到第一链路的DRB失败；
    其中，所述第一链路的默认DRB的配置信息包括第一指示信息以及与所述第一链路的默认DRB具有对应关系的V2X数据包的参数信息，所述第一指示信息用于指示所述配置信息为所述第一链路的默认DRB的配置信息。
  2. 根据权利要求1所述的方法，其特征在于，所述第一终端设备匹配所述V2X数据包到第一链路的DRB失败，包括：所述第一终端设备无法在已存储的DRB映射规则中匹配到相同的V2X数据包的参数信息；
    其中，所述DRB映射规则包括与DRB所对应的V2X数据包的参数信息，所述第一链路的DRB包括所述已存储的DRB映射规则所能映射出的DRB。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一终端设备获取第一链路的默认数据无线承载DRB的配置信息，包括：
    所述第一终端设备从第一网络设备接收所述第一链路的默认DRB的配置信息，和/或，
    所述第一终端设备存储有预配置的所述第一链路的默认DRB的配置信息。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，所述第一链路的默认DRB的配置信息包括所述V2X数据包的发送端需要的DRB配置信息，和/或，所述V2X数据包的接收端需要的DRB配置信息。
  5. 根据权利要求4所述的方法，其特征在于，包括：
    所述V2X数据包为组播或广播数据包，所述第一链路的默认DRB的配置信息包括所述V2X数据包的发送端需要的DRB配置信息；或者，
    所述V2X数据包为单播数据包，所述第一链路的默认DRB的配置信息包括所述V2X数据包的发送端需要的DRB配置信息和所述V2X数据包的接收端需要的DRB配置信息。
  6. 根据权利要求4或5所述的方法，其特征在于，所述方法还包括：
    所述第一终端设备向第二终端设备发送所述V2X数据包的接收端需要的DRB配置信息；
    其中，所述第二终端设备为所述第一V2X数据包的接收端。
  7. 根据权利要求1-6任一项所述的方法，其特征在于，所述V2X数据包具有参数信息，所述参数信息包括QoS参数、通信类型信息；其中，所述QoS参数、目标地址标识信息、通信类型信息为V2X数据包所关联的参数信息；所述通信类型信息包括广播通信、组播通信、单播通信中的至少一种。
  8. 根据权利要求7所述的方法，其特征在于，所述QoS参数包括以下信息中的 至少一项：QoS流标识、PC5口第五代通信系统服务质量标识PQI、车联网通信系统服务质量标识VQI、第五代通信系统服务质量标识5QI、保证流量比特率GFBR、最大流量比特率MFBR、最小需求通信距离、分配和保留优先级ARP。
  9. 根据权利要求1-8任一项所述的方法，其特征在于，所述第一链路的默认DRB的配置信息还包括以下信息中的至少一个：所述第一链路的默认DRB的标识信息、所述第一链路的默认DRB的各协议层的配置信息。
  10. 根据权利要求9所述的方法，其特征在于，所述第一链路的默认DRB的协议层的配置信息包括所述第一链路的默认DRB的服务数据适配协议SDAP层配置、分组数据汇聚协议PDCP层配置、无线链路控制RLC层配置、逻辑信道LCH配置、RLC信道配置中的至少一个。
  11. 根据权利要求9或10所述的方法，其特征在于，所述第一终端设备将满足预设条件的所述第一V2X数据包映射至所述第一链路的默认DRB，包括：
    所述第一终端设备将具有与所述第一链路的默认DRB具有对应关系的V2X数据包的参数信息且满足所述预设条件的所述第一V2X数据包映射至所述第一链路的默认DRB。
  12. 一种通信方法，其特征在于，包括：
    第一网络设备确定第一链路的默认数据无线承载DRB的配置信息，其中，所述第一链路为第一终端设备与其他终端设备之间的直连无线通信链路，所述第一终端设备为第一车联网V2X数据包的发送端；
    第一网络设备向所述第一终端设备发送所述第一链路的默认DRB的配置信息；
    其中，所述第一链路的默认DRB的配置信息包括第一指示信息以及与所述第一链路的默认DRB具有对应关系的V2X数据包的参数信息，所述第一指示信息用于指示所述配置信息为所述第一链路的默认DRB的配置信息。
  13. 一种通信装置，其特征在于，包括：
    处理模块，用于获取第一链路的默认数据无线承载DRB的配置信息，其中，所述通信装置为第一车联网V2X数据包的发送端，所述第一链路为所述通信装置与其他终端设备之间的直连无线通信链路；
    所述处理模块，还用于将满足预设条件的所述第一V2X数据包映射至所述第一链路的默认DRB，其中，所述满足预设条件包括所述通信装置匹配所述V2X数据包到第一链路的DRB失败；
    其中，所述第一链路的默认DRB的配置信息包括第一指示信息以及与所述第一链路的默认DRB具有对应关系的V2X数据包的参数信息，所述第一指示信息用于指示所述配置信息为所述第一链路的默认DRB的配置信息。
  14. 根据权利要求13所述的通信装置，其特征在于，所述通信装置匹配所述V2X数据包到第一链路的DRB失败，包括：所述通信装置无法在已存储的DRB映射规则中匹配到相同的V2X数据包的参数信息；
    其中，所述DRB映射规则包括与DRB所对应的V2X数据包的参数信息，所述第一链路的DRB包括所述已存储的DRB映射规则所能映射出的DRB。
  15. 根据权利要求13或14所述的通信装置，其特征在于，还包括收发模块，
    所述收发模块，用于从第一网络设备接收所述第一链路的默认DRB的配置信息，和/或，
    所述处理模块，还用于存储有预配置的所述第一链路的默认DRB的配置信息。
  16. 根据权利要求13-15任一项所述的通信装置，其特征在于，所述第一链路的默认DRB的配置信息包括所述V2X数据包的发送端需要的DRB配置信息，和/或，所述V2X数据包的接收端需要的DRB配置信息。
  17. 根据权利要求16所述的通信装置，其特征在于，包括：
    所述V2X数据包为组播或广播数据包，所述第一链路的默认DRB的配置信息包括所述V2X数据包的发送端需要的DRB配置信息；或者，
    所述V2X数据包为单播数据包，所述第一链路的默认DRB的配置信息包括所述V2X数据包的发送端需要的DRB配置信息和所述V2X数据包的接收端需要的DRB配置信息。
  18. 根据权利要求16或17所述的通信装置，其特征在于，还包括收发模块，
    所述收发模块，用于向第二终端设备发送所述V2X数据包的接收端需要的DRB配置信息；
    其中，所述第二终端设备为所述第一V2X数据包的接收端。
  19. 根据权利要求13-18任一项所述的通信装置，其特征在于，所述V2X数据包具有参数信息，所述参数信息包括QoS参数、通信类型信息；其中，所述QoS参数、目标地址标识信息、通信类型信息为V2X数据包所关联的参数信息；所述通信类型信息包括广播通信、组播通信、单播通信中的至少一种。
  20. 根据权利要求19所述的通信装置，其特征在于，所述QoS参数包括以下信息中的至少一项：QoS流标识、PC5口第五代通信系统服务质量标识PQI、车联网通信系统服务质量标识VQI、第五代通信系统服务质量标识5QI、保证流量比特率GFBR、最大流量比特率MFBR、最小需求通信距离、分配和保留优先级ARP。
  21. 根据权利要求13-20任一项所述的通信装置，其特征在于，所述第一链路的默认DRB的配置信息还包括以下信息中的至少一个：所述第一链路的默认DRB的标识信息、所述第一链路的默认DRB的各协议层的配置信息。
  22. 根据权利要求21所述的通信装置，其特征在于，所述第一链路的默认DRB的协议层的配置信息包括所述第一链路的默认DRB的服务数据适配协议SDAP层配置、分组数据汇聚协议PDCP层配置、无线链路控制RLC层配置、逻辑信道LCH配置、RLC信道配置中的至少一个。
  23. 根据权利要求21或22所述的通信装置，其特征在于，所述处理模块，具体用于：
    将具有与所述第一链路的默认DRB具有对应关系的V2X数据包的参数信息且满足所述预设条件的所述第一V2X数据包映射至所述第一链路的默认DRB。
  24. 一种通信装置，其特征在于，包括：
    处理模块，用于确定第一链路的默认数据无线承载DRB的配置信息，其中，所述第一链路为第一终端设备与其他终端设备之间的直连无线通信链路，所述第一终端设备为第一车联网V2X数据包的发送端；
    收发模块，用于向所述第一终端设备发送所述第一链路的默认DRB的配置信息；
    其中，所述第一链路的默认DRB的配置信息包括第一指示信息以及与所述第一链路的默认DRB具有对应关系的V2X数据包的参数信息，所述第一指示信息用于指示所述配置信息为所述第一链路的默认DRB的配置信息。
  25. 一种通信装置，其特征在于，所述通信装置包括：至少一个处理器和存储器，所述存储器用于存储程序，所述处理器调用所述存储器存储的程序，以使所述通信装置执行如权利要求1-12任一项所述的通信方法。
  26. 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中存储有指令，当所述指令在计算机或处理器上运行时，使得所述计算机或处理器执行如权利要求1-12任一项所述的通信方法。
  27. 一种通信系统，其特征在于，包括如权利要求13-23任一项所述的通信装置以及如权利要求24所述的通信装置。
  28. 一种包含指令的计算机程序产品，其特征在于，当所述指令在计算机或处理器上运行时，使得所述计算机或所述处理器执行如权利要求1-12任一项所述的通信方法。
  29. 一种芯片系统，其特征在于，所述芯片系统包括处理器，用于通信装置执行如权利要求1-12任一项所述的通信方法。
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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111866796B (zh) * 2019-04-30 2022-07-22 华为技术有限公司 用于获取无线承载配置的方法和装置
US11641598B2 (en) 2019-06-13 2023-05-02 Qualcomm Incorporated Device-to-device quality of service flow management
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018027528A1 (en) * 2016-08-09 2018-02-15 Panasonic Intellectual Property Corporation Of America Improved radio resource selection and sensing for v2x transmissions
WO2018131902A1 (en) * 2017-01-13 2018-07-19 Lg Electronics Inc. METHOD FOR TRANSMITTING UL PACKET BASED ON QUALITY OF SERVICE (QoS) FLOW IN WIRELESS COMMUNICATION SYSTEM AND A DEVICE THEREFOR
CN109314841A (zh) * 2016-07-18 2019-02-05 松下电器（美国）知识产权公司 对v2x传输的服务质量的改进的支持

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190132717A1 (en) * 2016-05-09 2019-05-02 Nokia Solutions And Networks Oy Enhancing Communication Services
US11057753B2 (en) * 2016-10-07 2021-07-06 Lg Electronics Inc. Method and device for performing V2X communication
CN108617010B (zh) * 2016-12-19 2021-10-26 展讯通信（上海）有限公司 建立数据无线承载的方法、装置、用户设备及基站
US20190349803A1 (en) * 2016-12-29 2019-11-14 Lg Electronics Inc. Method and apparatus for establishing drb
CN108990125B (zh) * 2017-06-01 2020-12-22 华为技术有限公司 数据传输的方法、终端设备和网络设备
CN108513727B (zh) * 2017-12-29 2020-06-02 北京小米移动软件有限公司 建立缺省数据无线承载的方法和装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109314841A (zh) * 2016-07-18 2019-02-05 松下电器（美国）知识产权公司 对v2x传输的服务质量的改进的支持
WO2018027528A1 (en) * 2016-08-09 2018-02-15 Panasonic Intellectual Property Corporation Of America Improved radio resource selection and sensing for v2x transmissions
WO2018131902A1 (en) * 2017-01-13 2018-07-19 Lg Electronics Inc. METHOD FOR TRANSMITTING UL PACKET BASED ON QUALITY OF SERVICE (QoS) FLOW IN WIRELESS COMMUNICATION SYSTEM AND A DEVICE THEREFOR

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CATT: "QoS Management for NR V2X", 3GPP TSG-RAN WG2 MEETING #104, R2-1816899, SPOKANE, USA, 12TH-16TH NOVEMBER 2018, 1 November 2018 (2018-11-01), XP051556462, DOI: 20200601151135Y *
See also references of EP3937565A4

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