WO2020088441A1 - Procédé de transmission et dispositif de communication - Google Patents

Procédé de transmission et dispositif de communication Download PDF

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Publication number
WO2020088441A1
WO2020088441A1 PCT/CN2019/113958 CN2019113958W WO2020088441A1 WO 2020088441 A1 WO2020088441 A1 WO 2020088441A1 CN 2019113958 W CN2019113958 W CN 2019113958W WO 2020088441 A1 WO2020088441 A1 WO 2020088441A1
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WIPO (PCT)
Prior art keywords
group
terminal device
information
identification
destination
Prior art date
Application number
PCT/CN2019/113958
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English (en)
Chinese (zh)
Inventor
彭文杰
范强
王君
戴明增
Original Assignee
华为技术有限公司
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Priority claimed from CN201910360603.5A external-priority patent/CN111148074B/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2020088441A1 publication Critical patent/WO2020088441A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • 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
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/50—Service provisioning or reconfiguring

Definitions

  • the present application relates to the field of communication, and more specifically, to a transmission method and communication device.
  • V2X The Internet of Vehicles (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. It has the characteristics of wide application space, large industrial potential, and strong social benefits.
  • the innovation and development of the communications industry, the construction of new models and new formats of automobile and transportation services, the promotion and innovation of autonomous driving technology, and the improvement of transportation efficiency and safety are of great significance.
  • V2X In the Long Term Evolution (LTE) technology, V2X only supports the broadcast service, that is, the control function (CF) node will configure the relationship between the V2X service type, destination identification (ID), and frequency point for the UE.
  • the UE will report the correspondence between the destination identifier and the frequency point, allowing different destination identifiers to correspond to the same frequency point.
  • the network will configure the sidelink (SL) resource pool of the V2X service according to the reported information of the UE. For example, a frequency point will be correspondingly configured with a SL resource pool of the V2X service.
  • SL sidelink
  • Multicast services allow information sharing between a group of UEs, that is, a UE can belong to different groups of the same V2X multicast service.
  • the network equipment continues to use the resources of the terminal equipment group according to the frequency point.
  • the SL resource pool of the same V2X service may include terminal equipment of different terminal groups, which reduces the reliability of the terminal equipment group communication and reduces the communication efficiency.
  • the present application provides a transmission method and a communication device, which can ensure the reliability of terminal device group communication and improve the communication efficiency.
  • a transmission method including:
  • the first terminal device sends group information of at least one terminal device group to which the first terminal device belongs to the network device;
  • the first terminal device receives at least one configuration resource sent by the network device, each configuration resource in the at least one configuration resource corresponds to a terminal device group in the at least one terminal device group, and the at least one configuration resource is used for the At least one terminal equipment group transmits the data of the V2X side link.
  • the first terminal device may send group information to the network device, and the group information may be used to indicate at least one terminal device group to which the first terminal device belongs.
  • the network device can perform V2X side link resource configuration according to the group information, thereby ensuring the reliability of communication between the terminal device groups and improving the communication efficiency.
  • the first terminal device sends group information of at least one terminal device group to which the first terminal device belongs to the network device; the first terminal device receives at least one indication sent by the network device Information about configuration resources, each configuration resource in the at least one configuration resource corresponds to a terminal device group in the at least one terminal device group, and the at least one configuration resource is used for the V2X side link transmission by the at least one terminal device group
  • the specific form of carrying information indicating at least one configuration resource is not limited in this application.
  • the network device may configure the resources of the V2X side link based on each terminal device group to which the first terminal device belongs.
  • the network device may configure the resources of the V2X side link based on each frequency point, which is not limited in this application.
  • the group information includes at least one piece of identification information, and each piece of identification information in the at least one piece of identification information is used to indicate a terminal device group to which the first terminal device belongs.
  • the group information also includes the number of group members, the rate requirements of the services within the group, the life cycle of the services within the group, the priority of the services within the group, and the Delay requirements, reliability requirements for services within the group, distance span requirements for services within the group, data size of services within the group, period of services within the group, number / index of the first terminal device within the group, group member identification, Any one or several items in the first indication information, wherein the first indication information is used to identify a master terminal device in the at least one terminal device group, and the master terminal device is used to manage all terminals in the terminal device group device.
  • a master terminal device may exist in each terminal device group.
  • the master terminal device may be a leader or ower of a terminal device group, and the master terminal device may be used to manage other terminal devices in the terminal device group.
  • the master terminal device may manage to add new terminal devices to the terminal device group, or may manage the terminal devices in the terminal device group to exit the terminal device group.
  • the group information reported by the first terminal device to the network device may include information of the terminal devices in the group, for example, the number of members, service rate requirements, priority, and other information.
  • the network device may determine The size of the resources configured by the terminal device group.
  • the at least one configuration resource is at least one resource pool, or the at least one configuration resource is a group-specific resource corresponding to the at least one terminal device group, which is dedicated
  • the resources include group-specific semi-static scheduling SPS resources or configuration guarantee resources, or the at least one configuration resource is a resource corresponding to each terminal device in at least one terminal device group.
  • At least one configuration resource may be a resource pool corresponding to different terminal device groups, may be a group-specific resource of different terminal device groups, or may be a fixed configuration resource of each terminal device in a terminal device group.
  • the first terminal device belongs to group1, group2, and group3, and at least one configuration resource may be three resource pools for group1, group2, and group3, respectively.
  • the first configuration resource in at least one configuration resource may be a group-specific resource for group1, which means that only the terminal device in group1 may use the first configuration resource, or at least one configuration resource is for a group
  • the method when the first terminal device is the master terminal device and the at least one configuration resource is a group-specific resource corresponding to the at least one terminal device group, the method further include:
  • the first terminal device receives a request message sent by a third terminal device, the request message is used to request resources in the group of dedicated resources, the first terminal device and the third terminal device belong to the same terminal device group, and the group is dedicated Resources include group-specific semi-static SPS resources or configuration guarantee resources.
  • the terminal devices in the group can request resources from the main terminal device in the terminal device group, and there is no need to send a BSR request to the network device, thereby improving communication efficiency.
  • the at least one terminal group is determined for the first terminal device, or the at least one terminal group is determined for the application APP layer.
  • the method further includes:
  • the first terminal device sends a buffer status report BSR to the network device, the BSR includes at least one group index information, and each group index information in the at least one group index information is used to indicate a terminal to which the first terminal device belongs Equipment group
  • the first terminal device sends first data to the second terminal device, where the first data includes the at least one identification information and second indication information, where the second indication information is used to indicate that the first data is data of a multicast service .
  • the BSR sent by the first terminal device to the network device may include information indicating the terminal device group to which the first terminal device belongs, and the network device determines different terminal device groups according to the group index information in the BSR, thereby Can realize the communication of multiple terminal equipment groups under one V2X service.
  • the method further includes:
  • the first terminal device sends a group identification list to the network device, and the at least one group index information is used to indicate the group identification in the group identification list.
  • the method further includes:
  • the first terminal device sends a list of first destination identifiers to the network device.
  • the first destination identifier is used to indicate a V2X service type.
  • the first destination identifier list includes a correspondence between each destination identifier and at least one group identifier.
  • the BSR includes destination identification indication information and group identification indication information, and the destination identification indication information is used to index the destination identification in the list of the first destination identification,
  • the group identification indication information is used to index the group identification in the list of the first destination identification.
  • the method further includes:
  • the first terminal device receives control information sent by the network device, the control information includes the at least one identification information, and each of the at least one identification information is used to indicate a terminal device to which the first terminal device belongs Group, the control information indicates a resource for transmitting side link data of a V2X service, and the resource belongs to the at least one configuration resource.
  • the medium access control MAC protocol data unit of the first data includes the at least one identification information, or, the medium access control MAC protocol data unit of the first data The at least one identification information and the identification information of the multicast service are included.
  • the group ID may be filled in the DST field of the MAC PDU of the first data.
  • the group ID and the identification information of the multicast service may be filled in the DST field of the MAC PDU of the first data.
  • the group ID is added after the DST field of the MAC PDU of the first data.
  • the group ID and the identification information of the multicast service are added after the DST field of the MAC PDU of the first data.
  • the first data is data scrambled according to the first identifier
  • the first identifier is at least one piece of identification information
  • the first identifier is at least one The identification corresponding to the identification information.
  • the first data is data scrambled according to a first identifier
  • the first identifier is one of the at least one identifier information
  • the first identifier is an identifier corresponding to one of the at least one identifier information .
  • the method further includes:
  • the first terminal device sends third indication information to the network device, where the third indication information is used to indicate that the propagation type corresponding to the destination identifier is a multicast service.
  • the method further includes:
  • the BSR also includes information on the propagation type of the destination identifier, and the propagation type is a multicast service.
  • a transmission method including:
  • the network device receives group information of at least one terminal device group to which the first terminal device belongs that is sent by the first terminal device;
  • the network device sends at least one configuration resource to the first terminal device according to the group information, each configuration resource in the at least one configuration resource corresponds to a terminal device group in the at least one terminal device group, and the at least one configuration resource It is used for the at least one terminal equipment group to transmit the data of the V2X side link.
  • the first terminal device may send group information to the network device, and the group information may be used to indicate at least one terminal device group to which the first terminal device belongs.
  • the network device can perform V2X side link resource configuration according to the group information, thereby ensuring the reliability of communication between the terminal device groups and improving the communication efficiency.
  • the network device may configure the resources of the V2X side link based on each terminal device group to which the first terminal device belongs.
  • the network device may configure the resources of the V2X side link based on each frequency point, which is not limited in this application.
  • the group information includes at least one piece of identification information, and each piece of identification information in the at least one piece of identification information is used to indicate a terminal device group to which the first terminal device belongs .
  • the group information further includes the number of group members, the rate requirements of the services within the group, the life cycle of the services within the group, the priority of the services within the group, and the Delay requirements, reliability requirements for services within the group, distance span requirements for services within the group, data size of services within the group, period of services within the group, number / index of the first terminal device within the group, group member identification, Any one or several items in the first indication information, wherein the first indication information is used to identify a master terminal device in the at least one terminal device group, and the master terminal device is used to manage all terminals in the terminal device group device.
  • the group information sent by the first terminal device to the network device may include information about the terminal devices in the group, for example, the number of members, service rate requirements, priority, and other information. According to the group information, the network device may determine The size of the resources configured by the terminal device group.
  • the at least one configuration resource is at least one resource pool, or the at least one configuration resource is a group-specific resource corresponding to the at least one terminal device group, and the group is dedicated
  • the resources include group-specific semi-static scheduling SPS resources or configuration guarantee resources, or the at least one configuration resource is a resource corresponding to each terminal device in at least one terminal device group.
  • At least one configuration resource may be a resource pool corresponding to different terminal device groups, may be a group-specific resource of different terminal device groups, or may be a fixed configuration resource of each terminal device in a terminal device group.
  • the at least one terminal group is determined for the first terminal device, or the at least one terminal group is determined for the application APP layer.
  • the method further includes:
  • the network device receives a buffer status report BSR sent by the first terminal device, where the BSR includes at least one group index information, and each group index information in the at least one group index information is used to indicate the one to which the first terminal device belongs Terminal equipment group.
  • the BSR sent by the first terminal device to the network device may include information indicating the terminal device group to which the first terminal device belongs, and the network device determines different terminal device groups according to the group index information in the BSR, thereby Can realize the communication of multiple terminal equipment groups under one V2X service.
  • the method further includes:
  • the network device receives the group identification list sent by the first terminal device, and the at least one group index information is used to indicate the group identification in the group identification list.
  • the method further includes:
  • the network device receives a list of first destination identifiers sent by the first terminal device, the first destination identifier is used to indicate a V2X service type, and the list of first destination identifiers includes a correspondence between each destination identifier and at least one group identifier .
  • the BSR includes destination identification indication information and group identification indication information, and the destination identification indication information is used to index the destination identification in the list of the first destination identification,
  • the group identification indication information is used to index the group identification in the list of the first destination identification.
  • the method further includes:
  • the network device sends control information to the first terminal device, where the control information includes the at least one identification information, and each of the at least one identification information is used to indicate a terminal device group to which the first terminal device belongs ,
  • the control information indicates a resource for transmitting side link data of the V2X service, and the resource belongs to the at least one configuration resource.
  • the method further includes:
  • the network device receives third indication information sent by the first terminal device, where the third indication information is used to indicate that the propagation type corresponding to the destination identifier is a multicast service.
  • the BSR also includes information on the propagation type of the destination identifier, and the propagation type is a multicast service.
  • a transmission method including:
  • the first terminal device sends a buffer status report BSR to the network device, the BSR includes at least one group index information, and each group index information in the at least one group index information is used to indicate a terminal device group to which the first terminal device belongs ;
  • the first terminal device sends first data to the second terminal device, where the first data includes at least one piece of identification information, and each piece of identification information in the at least one piece of identification information is used to indicate a terminal device to which the first terminal device belongs group.
  • the BSR sent by the first terminal device to the network device may include group index information indicating the terminal device group to which the first terminal device belongs, and the network device may determine different terminal devices according to the group index information in the BSR Group, which can realize the communication of multiple terminal device groups under a V2X service, ensuring the reliability of group communication and improving the communication efficiency.
  • the first data further includes second indication information, and the second indication information is used to indicate that the first data is data of a multicast service.
  • the method further includes:
  • the first terminal device sends a group identification list to the network device, and the at least one group index information is used to indicate the group identification in the group identification list.
  • the method further includes:
  • the first terminal device sends a list of first destination identifiers to the network device, the first destination identifier is used to indicate a V2X service type, and the first destination identifier list includes a correspondence between each destination identifier and at least one group identifier .
  • the BSR includes destination identification indication information and group identification indication information, and the destination identification indication information is used to index the destination identification in the list of the first destination identification,
  • the group identification indication information is used to index the group identification in the list of the first destination identification.
  • the method further includes:
  • the first terminal device receives control information sent by the network device, where the control information includes the at least one identification information, and the control information indicates a resource for transmitting side link data of the V2X service.
  • the medium access control MAC protocol data unit of the first data includes the at least one identification information, or, the medium access control MAC protocol data unit of the first data The at least one identification information and the identification information of the multicast service are included.
  • the first data is data scrambled according to the first identifier
  • the first identifier is at least one piece of identification information
  • the first identifier is at least one The identification corresponding to the identification information.
  • a transmission method including:
  • the network device receives a buffer status report BSR sent by the first terminal device, where the BSR includes at least one group index information, and each group index information in the at least one group index information is used to indicate a terminal device to which the first terminal device belongs group;
  • the network device determines at least one terminal device group to which the first terminal device belongs according to the at least one group index information.
  • the BSR sent by the first terminal device to the network device may include group index information indicating the terminal device group to which the first terminal device belongs, and the network device may determine different terminal devices according to the group index information in the BSR Group, which can realize the communication of multiple terminal device groups under a V2X service, ensuring the reliability of group communication and improving the communication efficiency.
  • the method further includes:
  • the network device receives the group identification list sent by the first terminal device, and the at least one group index information is used to indicate the group identification in the group identification list.
  • the method further includes:
  • the network device receives a list of first destination identifiers sent by the first terminal device, the first destination identifier is used to indicate a V2X service type, and the list of first destination identifiers includes a correspondence between each destination identifier and at least one group identifier .
  • the BSR includes destination identification indication information and group identification indication information, and the destination identification indication information is used to index the destination identification in the list of the first destination identification,
  • the group identification indication information is used to index the group identification in the list of the first destination identification.
  • the method further includes:
  • the network device sends control information to the first terminal device, where the control information includes at least one piece of identification information, and the control information indicates a resource for transmitting side link data of the V2X service.
  • a transmission method including:
  • the first terminal device determines a first correspondence, where the first correspondence is used to indicate a propagation type corresponding to the destination identifier, and the propagation type includes any one of a multicast service, a unicast service, or a broadcast service;
  • the first terminal device sends the first correspondence to the network device.
  • the first terminal device sending the first correspondence to the network device includes:
  • the first terminal device sends a list of second destination identifiers to the network device, where the list of second destination identifiers includes the correspondence between each destination identifier and the propagation type.
  • the first terminal device sending the first correspondence to the network device includes:
  • the first terminal device sends a buffer status report BSR to the network device, where the BSR includes the destination identifier and the propagation type information corresponding to the destination identifier.
  • the first terminal device sending the first correspondence to the network device may include:
  • the first terminal device sends the sidelink terminal device information to the network device, and the sidelink terminal device information includes the first correspondence.
  • the method may further include:
  • the first terminal device sends a buffer status report BSR to the network device, where the BSR includes an index of the destination identifier and a cache size corresponding to the index of the destination identifier, and the index of the destination identifier is used to indicate the list of the second destination identifier Target business.
  • the method may further include:
  • the first terminal device sends auxiliary information to the network device, where the auxiliary information is used to indicate a service model, and the service model includes any one or several items of data size, period, priority, and reliability corresponding to the service.
  • a transmission method including:
  • the network device receives a first correspondence relationship sent by the first terminal device, where the first correspondence relationship is used to indicate a propagation type corresponding to the destination identifier, and the propagation type includes any one of a multicast service, a unicast service, or a broadcast service;
  • the network device determines the propagation type corresponding to at least one destination identifier according to the first correspondence.
  • the network device receiving the first correspondence sent by the first terminal device includes:
  • the network device receives a list of second destination identifiers sent by the first terminal device, where the list of second destination identifiers includes the correspondence between each destination identifier and the propagation type.
  • the network device receiving the first correspondence sent by the first terminal device includes:
  • the network device receives a buffer status report BSR sent by the first terminal device, where the BSR includes a destination identifier and information about the propagation type corresponding to the destination identifier.
  • the network device receiving the first correspondence sent by the first terminal device includes:
  • the network device receives the side link terminal device information sent by the first terminal device, and the side link terminal device information includes the first correspondence.
  • the method may further include:
  • the network device receives a buffer status report BSR sent by the first terminal device, where the BSR includes an index of the destination identifier and a buffer size corresponding to the index of the destination identifier, and the index of the destination identifier is used to indicate the list of the second destination identifier Target business.
  • the method may further include:
  • the network device determines the side link resource scheduled for the first terminal device according to the propagation type of the service corresponding to the index identified by the destination.
  • the method may further include:
  • the network device receives auxiliary information sent by the first terminal device, and the auxiliary information is used to indicate a service model, and the service model includes any one or several items of data size, period, priority, and reliability corresponding to the service.
  • the method may further include:
  • the network device determines the side link resource configured for the first terminal device according to the propagation type and the service model.
  • a communication device including a processor.
  • the processor is coupled to the memory, and can be used to execute instructions in the memory to implement any one of the above aspects and the method in any possible implementation manner of any aspect.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication device is a first terminal device.
  • the communication interface may be a transceiver or an input / output interface.
  • the communication device is a chip configured in the first terminal device.
  • the communication interface may be an input / output interface of the chip.
  • the transceiver may be a transceiver circuit.
  • the input / output interface may be an input / output circuit.
  • the communication device is a network device.
  • the communication interface may be a transceiver or an input / output interface.
  • the communication device is a chip configured in a network device.
  • the communication interface may be an input / output interface of the chip.
  • the transceiver may be a transceiver circuit.
  • the input / output interface may be an input / output circuit.
  • the communication device may also be the second terminal device or the third terminal device in any of the foregoing implementation manners, to implement the steps or functions of the second terminal device or the third terminal device in any of the foregoing implementation manners .
  • the communication device may also be a network device in any of the foregoing implementation manners, so as to implement the steps or functions of the network device in any of the foregoing implementation manners.
  • the communication device may include a receiving unit and a sending unit.
  • the sending unit may be a transmitter and the receiving unit may be a receiver;
  • the communication device may further include a processing unit, and the processing unit may be a processor;
  • the communication device may further include a storage unit, and the storage unit may be a memory;
  • the storage unit is used for storing instructions, and the processing unit executes the instructions stored in the storage unit, so that the communication device executes the transmission method in any one of the above aspects and one of the optional embodiments thereof.
  • the processing unit may be a processor, and the receiving unit / transmitting unit may be an input / output interface, a pin or a circuit, etc .; the processing unit executes instructions stored in the storage unit, so that The communication device executes the transmission method in any one of the above aspects and one of its optional implementations.
  • the storage unit may be a storage unit within the chip (eg, register, cache, etc.), or may be located in the communication device. The storage unit outside the chip (for example, read-only memory, random access memory, etc.).
  • a processor including: an input circuit, an output circuit, and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the transmission method in any aspect and any possible implementation manner of any aspect.
  • the processor may be a chip
  • the input circuit may be an input pin
  • the output circuit may be an output pin
  • the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits.
  • the input signal received by the input circuit may be received and input by, for example, but not limited to a receiver
  • the signal output by the output circuit may be, for example but not limited to, output to and transmitted by the transmitter
  • the circuit may be the same circuit, which is used as an input circuit and an output circuit at different times, respectively.
  • the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
  • a processing device including a processor and a memory.
  • the processor is used to read instructions stored in the memory, and can receive signals through the receiver and transmit signals through the transmitter to perform the method in any aspect and any possible implementation manner of the first aspect.
  • processors there are one or more processors and one or more memories.
  • the memory may be integrated with the processor, or the memory and the processor are provided separately.
  • the memory may be a non-transitory (non-transitory) memory, such as a read-only memory (read only memory, ROM), which may be integrated with the processor on the same chip, or may be separately set in different On the chip, the embodiments of the present application do not limit the type of memory and the manner of setting the memory and the processor.
  • a non-transitory memory such as a read-only memory (read only memory, ROM)
  • ROM read only memory
  • sending group information may be a process of outputting group information from the processor
  • receiving group information may be a process of receiving group information by the processor.
  • the processed output data may be output to the transmitter, and the input data received by the processor may come from the receiver.
  • the transmitter and the receiver may be collectively referred to as a transceiver.
  • a processing device in the above ninth aspect may be a chip, and the processor may be implemented by hardware or software.
  • the processor When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc .; when passed When implemented in software, the processor may be a general-purpose processor, implemented by reading software codes stored in a memory, the memory may be integrated in the processor, and may be located outside the processor and exist independently.
  • a computer program product includes: a computer program (also referred to as code or instructions) that, when the computer program is executed, causes the computer to perform any of the above aspects and tasks.
  • the transmission method in any possible implementation manner in one aspect.
  • a computer-readable medium storing a computer program (also referred to as code or instructions), which when executed on a computer, causes the computer to perform any of the above aspects and The transmission method in any possible implementation manner of any aspect.
  • a computer program also referred to as code or instructions
  • a communication system including any one or more of the following: the foregoing network device, the foregoing first terminal device, and the foregoing second terminal device.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • FIG. 2 is a schematic diagram of the V2X service in the prior art.
  • FIG. 3 is a schematic diagram of a transmission method according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a MAC PDU data packet format according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a MAC PDU data packet format according to another embodiment of the present application.
  • FIG. 6 is a schematic diagram of a transmission method according to another embodiment of the present application.
  • FIG. 7 is a schematic diagram of a transmission method according to yet another embodiment of the present application.
  • FIG. 8 is a schematic diagram of a transmission method according to yet another embodiment of the present application.
  • FIG. 9 is a schematic diagram of a transmission method according to yet another embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 11 is another schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 12 is another schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 13 is another schematic structural diagram of a communication device according to an embodiment of the present application.
  • GSM global mobile communication
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • general packet radio service general packet radio service, GPRS
  • LTE long term evolution
  • LTE frequency division duplex FDD
  • TDD time division duplex
  • UMTS universal mobile communication system
  • global interconnected microwave access worldwide interoperability for microwave access, WIMAX
  • 5G fifth generation
  • NR new radio
  • the terminal device in the embodiment of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or User device.
  • Terminal devices can also be cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (wireless local loop (WLL) stations, personal digital assistants (personal digital assistants, PDAs), wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or public land mobile communication networks (PLMN) in the future evolution
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDAs personal digital assistants
  • wireless communication Functional handheld devices computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or public land mobile communication networks (PLMN) in the future evolution
  • PLMN public land mobile communication networks
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may be a global system for mobile (GSM) system or code division multiple access (CDMA)
  • the base station (base transceiver) (BTS) in the system can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system or an evolved base station (evolved) in an LTE system NodeB, eNB or eNodeB), or a wireless controller in a cloud radio access network (CRAN) scenario
  • the network device can be a relay station, an access point, an in-vehicle device, a wearable device, and future Network devices in a 5G network or network devices in a PLMN network that will evolve in the future are not limited in the embodiments of the present application.
  • the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes central processing unit (CPU), memory management unit (memory management unit, MMU), and memory (also called main memory) and other hardware.
  • the operating system may be any one or more computer operating systems that implement business processes through processes, for example, a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system.
  • the application layer includes browser, address book, word processing software, instant messaging software and other applications.
  • the embodiment of the present application does not specifically limit the specific structure of the execution body of the method provided in the embodiment of the present application, as long as it can run the program that records the code of the method provided by the embodiment of the present application to provide according to the embodiment of the present application
  • the method may be used for communication.
  • the execution body of the method provided in the embodiments of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call a program and execute the program.
  • the term "article of manufacture” as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium.
  • the computer-readable medium may include, but is not limited to: magnetic storage devices (for example, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (for example, compact discs (CDs), digital universal discs (digital discs, DVDs)) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • various storage media described herein may represent one or more devices and / or other machine-readable media for storing information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.
  • FIG. 1 is an example diagram of a system architecture applying an embodiment of the present application.
  • the communication system includes a control function (CF) node, a V2X device (for example, may include multiple V2X devices in group 1 and group 2), and a network device.
  • the V2X devices communicate through the PC5 interface.
  • the communication link between V2X devices is defined as a sidelink (SL).
  • SL sidelink
  • the V2X device in FIG. 1 may be an Internet of Things device, such as a UE.
  • V2X device may be bidirectional, and the V2X device may also communicate with a network device.
  • upstream communication there is no specific limitation on this.
  • V2X device may belong to different groups, for example, a V2X device may belong to group 1 or group 2.
  • V2X can specifically include three application requirements: V2V (Internet of Vehicles), V2P (Vehicle and Pedestrian Communication), and V2I / N (Vehicle and Infrastructure Communication / Network, Base Station Communication), as shown in Figure 2.
  • V2V refers to communication between vehicles based on LTE
  • V2P refers to communication between vehicles based on LTE and people (including pedestrians, cyclists, drivers, or passengers)
  • V2I refers to vehicles based on LTE and roadside devices (RSU) communication
  • RSU roadside devices
  • Roadside devices can include two types: terminal-type RSUs, because they are deployed on the roadside, the terminal-type RSUs are in a non-mobile state and do not need to consider mobility; base station-type RSUs can be communicated with Vehicles provide timing synchronization and resource scheduling.
  • the user plane communication protocol stack of the PC5 interface takes the communication between UE A and UE B as an example, and UE A communicates with UE B through the PC5 interface.
  • the user plane protocol stack of the PC5 interface and the LTE Uu interface can be the same, including the packet data convergence protocol (packet data convergence protocol, PDCP) layer, the radio link control (radio link control (RLC) layer, medium access control (medium access control (MAC) layer and physical layer (PHY) layer.
  • packet data convergence protocol packet data convergence protocol
  • RLC radio link control
  • MAC medium access control
  • PHY physical layer
  • V2X Car-to-everything
  • V2X services are a type of communication services that use vehicle-to-vehicle (V2V) applications.
  • Transmission through 3GPP can include vehicle-to-infrastructure (V2I) and vehicle-to-pedestrian (V2P). , Vehicle-to-network (V2N), vehicle-to-vehicle (V2V) and other services.
  • V2I vehicle-to-infrastructure
  • V2P vehicle-to-pedestrian
  • V2N Vehicle-to-network
  • V2V vehicle-to-vehicle
  • V2I business means that one participant is a UE and the other participant is a road facility.
  • V2N service means that one participant is a UE and the other participant is a service entity. For example, it can be communicated through a network device, that is, a base station.
  • V2V communication between vehicles, you can broadcast your own speed, driving direction, specific location, whether you have stepped on the emergency brake and other information to the surrounding vehicles.
  • the drivers of the surrounding vehicles can better visually sense by acquiring this type of information.
  • the traffic conditions beyond the distance so as to make a pre-judgment on the dangerous situation and make an evasion.
  • roadside infrastructure such as roadside units (RSU)
  • RSU roadside units
  • LTE Long-term evolution
  • LTE Long-term evolution
  • side link communication is the main communication method.
  • data transmission between terminal devices can be transferred without passing through network devices.
  • Sidelink communication is mainly divided into two transmission modes, namely centralized scheduling transmission mode (also called Mode3) and distributed transmission mode (also called Mode4).
  • Centralized scheduling transmission mode (also called Mode3): In this mode, the terminal device needs to apply for resources from the network device every time before sending data, and sends V2X service data according to the resources allocated by the network device. Since the resources of the terminal equipment are uniformly allocated by the network equipment, it will not happen that the neighboring terminal equipment allocates the same resources. Therefore, the centralized transmission mode can ensure better transmission reliability. However, due to the need for interactive signaling between the terminal device and the network device each time, relatively speaking, compared with the distributed transmission mode, the transmission delay of sending data using the centralized scheduling transmission mode is longer.
  • V2X of this type of mode in NR may also be called Mode1.
  • the network device configures a resource pool for the terminal device through SIB messages or dedicated radio resource control (Dedicated RRC) signaling.
  • Dedicated RRC dedicated radio resource control
  • the terminal device sends V2X data, it can The data is sent by randomly selecting, based on at least part of the resources of the master-slave resource pool based on the listening reservation mechanism or based on the partial listening reservation mechanism.
  • the terminal device autonomously sends data from at least part of the resources obtained from the resource pool in the pre-configured information.
  • the pre-configuration information may be a resource pool that the terminal is configured inside the terminal when it is shipped from the factory, or it may be information pre-configured by the network device and stored inside the terminal. Since the terminal device independently selects resources, it may happen that different terminal devices select the same resource to send data, so transmission collision may occur.
  • V2X of this type of mode in NR may also be called Mode2.
  • the UE When the UE requests uplink resources from the network device through the SR, it only indicates whether it has uplink data to send, but does not indicate how much uplink data needs to be sent. The UE needs to send the BSR to the network device, and how much data in its uplink buffer needs to be sent, so that the network device determines the size of the uplink resource allocated to the UE.
  • LCG refers to grouping one or more logical channels.
  • a BSR value is bound to each logical channel group.
  • the BSR carries 64 index values from 0 to 63, and each index value corresponds to the number of bytes in different ranges.
  • the BSR value is not all the amount of data to be transmitted by the UE, nor the number of data bytes to be transmitted of a logical channel, but the amount of data to be transmitted corresponding to a logical channel group.
  • Each logical channel group has a BSR value bound to it. When a logical channel group of the UE has data to send, it can report the BSR value of the logical channel group.
  • V2X only supports the broadcast service, that is, the V2X service data sent by the sending-end UE at a certain frequency point can be received by all surrounding UEs interested in the frequency point. There is a correspondence between the frequency point and the V2X service. Through this correspondence, the UE can determine where it can receive the service that the UE is interested in.
  • the control function (CF) node may configure the relationship between the destination ID (destination ID) corresponding to the V2X service type and the frequency point for the UE.
  • the UE will report the relationship between the destination ID and the frequency point to the base station.
  • the UE reports the destination ID information in the BSR to indicate which frequency V2X SL resource is requested.
  • the V2X service type can be represented by a service provider identifier (provider service identifier, PSID) or an intelligent transportation system application identifier (intelligent transportation systems applications identifier (ITS-AID).
  • each destination ID has an independent logical channel group (LCG). Taking up to 4 LCGs as an example, the sending UE will have 4 LCGs for each destination ID.
  • LCG logical channel group
  • a V2X service type corresponds to a destination ID
  • the UE reports the correspondence between the destination ID and the frequency point to the base station.
  • the BSR carries the indication information of the destination ID (destination index) to indicate which V2X SL frequency resource is requested.
  • the destination ID destination index
  • the specific multicast service may include a vehicle platooning service and an extended sensor service.
  • the multicast service allows information sharing between a group of UEs. For example, the distance, speed, sensor parameters, etc. between each other can be shared within the group.
  • the data of this kind of service has certain requirements on reliability and needs to be kept secret, so it can no longer be transmitted in the form of broadcasting.
  • the UE is allowed to belong to different groups of the same V2X multicast service, that is, the LCG / LCH under a destination ID will be shared by different groups, then there will be different groups of data in one LCG / LCH, that is, different groups
  • the data will be sent as a package. As a result, data in the group may be received by other group members, resulting in reduced transmission efficiency and insecure information.
  • this application proposes a transmission method and communication device.
  • V2X group communication that is, when a UE is allowed to belong to different terminal groups of the same V2X multicast service, by adding group identification information, the logical channel is avoided by different terminal groups Multiplexing, thus ensuring the reliability requirements of the V2X multicast service data, thereby improving transmission efficiency.
  • FIG. 3 is a schematic flowchart of a transmission method according to an embodiment of the present application.
  • the transmission method of FIG. 3 can be applied to the network architecture of FIG. 1.
  • the transmission method shown in FIG. 3 can be applied to the multicast scenario of V2X services.
  • the transmission method in FIG. 3 includes:
  • the first terminal device reports group information of at least one terminal device group to which the first terminal device belongs to the network device.
  • the first terminal device reporting information to the network device may be the first terminal device sending information to the network device.
  • “report” and “Send” can be used universally.
  • the first terminal device may report group information of at least one terminal device group to which the first terminal device belongs to the network device through radio resource control (RRC) signaling.
  • RRC radio resource control
  • the group information may include at least one piece of identification information, and each piece of identification information in the at least one piece of identification information is used to indicate a terminal device group to which the first terminal device belongs.
  • At least one identification information may be a group identification.
  • the group information also includes the number of group members, the rate requirements of the group services, the life cycle of the group services, the priority of the group services, the delay requirements of the group services, and the reliability requirements of the group services , The distance span requirement of the services within the group, the data size of the services within the group, the period of the services within the group, the number / index of the first terminal device within the group, the group member identification, any of the first indication information or Any one of the items, wherein the first indication information is used to identify / indicate a master terminal device in the at least one terminal device group, and the master terminal device is used to manage all terminal devices in the terminal device group.
  • a master terminal device may exist in each terminal device group.
  • the master terminal device may be a leader or ower of a terminal device group, and the master terminal device may be used to manage other terminal devices in the terminal device group.
  • the master terminal device may manage to add new terminal devices to the terminal device group, or may manage the terminal devices in the terminal device group to exit the terminal device group.
  • the first terminal device receives at least one configuration resource sent by the network device.
  • Each configuration resource in the at least one configuration resource corresponds to a terminal device group in the at least one terminal device group.
  • At least one configuration resource is used by the at least one terminal device group to transmit data of the V2X side link.
  • the first terminal device receives information indicating at least one configuration resource sent by the network device, each configuration resource in the at least one configuration resource and a terminal device in the at least one terminal device group Corresponding to the group, the at least one configuration resource is used by the at least one terminal device group to transmit data of the V2X side link.
  • the configuration resource is a side link resource of the V2X service configured by the network device for the terminal device group, and the resource may also use other names, as long as the functions it implements are the same , This application does not make any restrictions on this.
  • the first terminal device receives the control information DCI sent by the network device, indicating at least one configuration resource, or it may be other information sent by the network device to the first terminal device, indicating at least one configuration resource.
  • This application does not limit the specific form of information.
  • the network device may configure the resources of the V2X side link based on each terminal device group to which the first terminal device belongs, that is, the network device is each terminal device to which the first terminal device belongs
  • the group configures a V2X side link resource; the network device may also configure the V2X side link resource based on each frequency point after receiving the group information reported by the first terminal device, which is not limited in this application.
  • the first terminal device may receive at least one configuration resource configured by the network device, and use the at least one configuration resource to send the data of the V2X side link when the data needs to be sent.
  • the at least one configuration resource configured by the network device for each terminal device group where the first terminal device is located may be a relatively static configuration, indicating the permission The range of resources used.
  • the terminal device still needs to send a request to the network device.
  • the network device schedules the adaptation resources that are sending service data for the terminal device based on the request of the terminal device.
  • the network device may configure resource for the terminal device group where the first terminal device is located through SIB message or dedicated radio resource control (Dedicated RRC) signaling, for example , Configure a resource pool for the V2X data sent by the terminal device group.
  • SIB message or dedicated radio resource control (Dedicated RRC) signaling for example , Configure a resource pool for the V2X data sent by the terminal device group.
  • Dedicated RRC dedicated radio resource control
  • Any one of the terminal devices in the terminal device group where the first terminal device is located may send data by randomly selecting at least part of the resources acquired from the master-slave resource pool based on the listening reservation mechanism or based on the partial listening reservation mechanism.
  • the first terminal device receives at least one configuration resource sent by the network device, and the at least one configuration resource may be an SPS resource or a configuration guarantee resource type.
  • the configuration resource indicates a specific time-frequency resource location
  • the first terminal device may directly occupy part or all of the time-frequency resources allocated by the base station for data transmission when data transmission is required. It should be understood that the above is an illustration, which is not limited in the embodiments of the present application.
  • the at least one configuration resource is at least one resource pool, or the at least one configuration resource is a group-specific resource corresponding to the at least one terminal device group, and the group-specific resource includes a group-specific semi-static scheduling SPS Resources or configuration guarantee resources, or the at least one configuration resource is a resource corresponding to each terminal device in the at least one terminal device group.
  • the first terminal device belongs to group1, group2, and group3, and at least one configuration resource may be three resource pools for group1, group2, and group3, respectively.
  • the first configuration resource in the at least one configuration resource may be a group-specific resource for group1, which means that only the terminal device in group1 may use the first configuration resource.
  • at least one configuration resource is a resource configured for each terminal device in the group.
  • the method further includes:
  • the first terminal device receives a request message sent by a third terminal device, where the request message is used to request resources in the group of dedicated resources, and the first terminal device and the third terminal device belong to the same terminal device Group, the group-specific resources include group-specific semi-static SPS resources or configured guaranteed resources.
  • the first terminal device belongs to group1 and the first terminal device is the main terminal device in group1, and the network device may configure the first terminal device with a group-specific semi-static SPS resource corresponding to group1 or configured guarantee grant) resources.
  • the third terminal device in group 1 needs to send data, it requests resources from the first terminal device, that is, the third terminal device may no longer need to send a BSR request to the network device.
  • the group-specific resource may be a group-specific semi-static SPS resource in the LTE technology, or a configured guaranteed resource in the NR technology, where the configured guaranteed resource includes type1 and type2
  • the configured guaranteed resource includes type1 and type2
  • type1 is grant free type, that is, no additional activation instruction is needed
  • type2 is the type corresponding to SPS in LTE, that is, DCI is required for activation.
  • the first terminal device may report the group identifier to the network device, and the group identifier may be reported in the format of the destination identifier, that is, the first terminal device reports the destination identifier
  • the value of can be the group ID.
  • the first terminal device may report the group identifier and the destination identifier, where the destination identifier may be used to indicate the V2X service type, and the group identifier may be used to indicate a terminal device group to which the first terminal device belongs. It should be understood that this application does not specifically limit the reporting form of the group identification.
  • the first terminal device may belong to at least one terminal device group, the at least one terminal device group may be determined by the first terminal device, or the at least one terminal group may be an application program App layer determined.
  • the above process describes that the first terminal device reports the group information to the network device, and the network device can configure at least one configuration resource according to the group information, thereby ensuring the reliability of group communication in the scenario of V2X multicast services and improving the utilization rate of resources .
  • the method further includes:
  • the first terminal device reports a buffer status report BSR to the network device, the BSR includes at least one group index information, and each group index information in the at least one group index information is used to indicate the first terminal A terminal device group to which the device belongs;
  • the first terminal device sends first data to a second terminal device, where the first data includes the at least one identification information and second indication information, and the second indication information is used to indicate that the first data is Multicast service data.
  • At least one group index information included in the BSR and at least one identification information included in the group information in the RRC signaling sent by the first terminal device to the network device may be used to indicate the first At least one terminal device group to which the terminal device belongs.
  • the first terminal device may report the list of group identifiers to the network device, and the BSR may include a group index, which is used to indicate the group identifier in the list of group identifiers.
  • group identifier may be a unique group identifier under different destination identifiers, or may be the same under different destination identifiers.
  • the destination identifier 1 corresponds to group1, group2, and group3; the destination identifier 2 corresponds to group4, group5. That is, the group identifier may be a unique group identifier under different destination identifiers.
  • the destination identifier 1 corresponds to group1, group2, and group3; the destination identifier 2 corresponds to group1, group2. That is, the group identifier may be the same under different destination identifiers.
  • the first terminal device needs to report the destination identifier to which the group identifier belongs to the network device.
  • the method further includes:
  • the first terminal device reports a list of first destination identifiers to the network device, the first destination identifier is used to indicate a V2X service type, and the list of first destination identifiers includes each destination identifier and at least one group identifier Correspondence.
  • the BSR includes destination identification indication information and group identification indication information
  • the destination identification indication information is used to index the destination identification in the list of the first destination identification
  • the group identification indication information is used to index The group identifier in the list of the first destination identifier.
  • the first terminal device may report a Destination ID list to the network device, the list includes each Destination ID and at least one corresponding group ID, and the BSR reported by the first terminal device to the network device may also carry a destination index to indicate the destination ID Group ID within.
  • the carrying group index indicates the index of the group ID list corresponding to the destination ID.
  • the first data may include at least one group identification information.
  • Specific implementation methods include but are not limited to the following methods:
  • the media access control MAC protocol data unit of the first data may include the information of the at least one group identifier.
  • the group ID may be filled in the DST field of the MAC PDU of the first data.
  • the group ID is added after the DST field of the MAC PDU of the first data.
  • the media access control MAC protocol data unit of the first data may include at least one group identification information and a multicast service identification.
  • the first data may be data scrambled according to a first identifier, the first identifier is at least one group identifier, or the first identifier is an identifier corresponding to at least one group identifier.
  • the logical channel of the UE may be independently maintained based on each terminal device group. That is, a UE may belong to multiple terminal equipment groups, and each terminal equipment group has an independent set of logical channels, thereby ensuring data reliability of terminal equipment group communication.
  • the method further includes:
  • the first terminal device receives control information sent by the network device, the control information includes the at least one identification information, and each of the at least one identification information is used to indicate the first terminal device A terminal device group to which the control information indicates a resource for transmitting side link data of a V2X service, where the resource belongs to the at least one configuration resource.
  • At least one identification information may be a group identification of each terminal device group to which the first terminal device belongs
  • the first terminal device may send a BSR to the network device
  • the BSR may include an indication of the first At least one group index information of the group to which the terminal device belongs.
  • the network device may indicate the resources of the scheduled V2X side link to the first terminal device through DCI. Wherein, the network device may indicate that it is a resource scheduled by the terminal group, or may not indicate that the UE determines which terminal group data is to be sent using the V2X SL resources.
  • each message is not limited in the embodiments of the present application.
  • the name of each message is only an example, and each message may adopt other names as long as the functions it implements are the same.
  • the first terminal device may report group information to the network device, and the group information may be used to indicate at least one terminal device group to which the first terminal device belongs.
  • the network device can perform the resource configuration of the V2X side link according to the group information, thereby ensuring the reliability of communication between the terminal device groups and improving the communication efficiency.
  • the V2X service only supports the broadcast service.
  • NR new radio
  • multicast services which allows information sharing between a group of UEs, that is, a UE can belong to different groups of the same V2X multicast service, thus An LCG / logical channel (LCH) under a destination ID may be shared by different groups of UEs, resulting in reduced data reliability and reduced transmission efficiency.
  • the first terminal device may report information indicating the terminal device group to the network device, so that communication between multiple terminal device groups under one V2X service type can be realized.
  • FIG. 6 is a schematic flowchart of a transmission method according to an embodiment of the present application.
  • the method of FIG. 6 can be applied to the network architecture of FIG. 1.
  • the transmission method shown in FIG. 6 can be applied to the multicast scenario of the V2X service.
  • the transmission method in FIG. 6 includes:
  • the first terminal device reports a buffer status report BSR to the network device.
  • the BSR includes at least one group index information. Each group index information in the at least one group index information is used to indicate that the first terminal device belongs A group of terminal devices.
  • the network device receiving the BSR reported by the first terminal device may include information indicating the terminal device group to which the first terminal device belongs, for example, the BSR received by the network device may include at least one group index.
  • the first terminal device sends first data to the second terminal device, where the first data includes at least one piece of identification information, and each piece of identification information in the at least one piece of identification information is used to indicate to which the first terminal device belongs A terminal device group.
  • the first data further includes second indication information, and the second indication information indicates that the first data is data of a multicast service.
  • the first data sent by the first terminal device to the second terminal device may only include information of at least one group identifier, and the second terminal device may receive the first data according to the first data
  • the data format distinguishes the first data as multicast data, unicast data or broadcast data.
  • the first data sent by the first terminal device to the second terminal device may include at least one group identification information and indication information, where the indication information is used to indicate that the first data is multicast data. That is, the multicast data, unicast data, and broadcast data may be in a common data format, and the transmission mode of the data may be indicated as multicast, unicast, or broadcast through the indication information.
  • the method further includes:
  • the first terminal device reports a group identification list to the network device, and the at least one group index information is used to indicate a group identification in the group identification list.
  • the first terminal device reports a list of group identifications to the network device, and the BSR includes at least one group index information indicating the group identification.
  • the network device may use the group identification list and at least one group
  • the index information determines at least one terminal device group to which the first terminal device belongs.
  • the first terminal device may report the list of group identifiers to the network device, and the BSR may include a group index, which is used to indicate the group identifier in the list of group identifiers.
  • group identifier may be a unique group identifier under different destination identifiers, or may be the same under different destination identifiers.
  • the destination identifier 1 corresponds to group1, group2, and group3; the destination identifier 2 corresponds to group4, group5. That is, the group identifier may be a unique group identifier under different destination identifiers.
  • the destination identifier 1 corresponds to group1, group2, and group3; the destination identifier 2 corresponds to group1, group2. That is, the group identifier may be the same under different destination identifiers.
  • the first terminal device needs to report the destination identifier to which the group identifier belongs to the network device.
  • the method further includes:
  • the first terminal device reports a list of first destination identifiers to the network device, the first destination identifier is used to indicate a V2X service type, and the list of first destination identifiers includes each destination identifier and at least one group identifier Correspondence.
  • the BSR includes destination identification indication information and group identification indication information
  • the destination identification indication information is used to index the destination identification in the list of the first destination identification
  • the group identification indication information is used to index The group identifier in the list of the first destination identifier.
  • the BSR reported by the first terminal device to the network device may also carry a destination index to indicate the group ID in the destination ID.
  • the carrying group index indicates the index of the group ID list corresponding to the destination ID.
  • the first data may include at least one group identification information.
  • Specific implementation methods include but are not limited to the following methods:
  • the media access control MAC protocol data unit of the first data may include the information of the at least one group identifier.
  • the group ID may be filled in the DST field of the MAC PDU of the first data.
  • the group ID is added after the DST field of the MAC PDU of the first data.
  • the media access control MAC protocol data unit of the first data may include at least one group identification information and a multicast service identification.
  • the first data may be data scrambled according to a first identifier, the first identifier is the at least one group identifier, or the first identifier is an identifier corresponding to the at least one group identifier.
  • a data packet indicating that the first data is group communication can be filtered at the physical layer, and the group-related information is used for scrambling and descrambling.
  • a group-related ID is used by the sending UE in the group when sending data. This ID is used for scrambling, and the receiving UE in the group uses this ID for descrambling when receiving. This ID may be the group ID or another ID corresponding to the group ID. The other ID is allocated to the UE by the network device or deduced by the UE in the group according to the group ID.
  • the method further includes:
  • the first terminal device receives control information sent by the network device, the control information includes the at least one identification information, the control information indicates a resource for transmitting side link data of a V2X service, the The resource belongs to the at least one configuration resource.
  • the first terminal device may send a BSR to the network device, and the BSR may include at least one group index information indicating the group to which the first terminal device belongs.
  • the network device may indicate the resources of the scheduled V2X side link to the first terminal device through DCI.
  • the network device may indicate that it is a resource scheduled by the terminal group, or it may not indicate, and the UE determines which terminal group data is sent using the V2X SL resources.
  • each group may have a corresponding destination identifier.
  • the destination identifier no longer indicates the service type, but may be a group identifier.
  • the logical channel of the UE may be independently maintained based on each terminal device group. That is, a UE may belong to multiple terminal equipment groups, and each terminal equipment group has an independent set of logical channels, thereby ensuring data reliability of terminal equipment group communication.
  • each message is not limited in the embodiments of the present application.
  • the name of each message is only an example, and each message may adopt other names as long as the functions it implements are the same.
  • the BSR reported by the first terminal device to the network device may include group index information indicating the terminal device group to which the first terminal device belongs, and the network device may determine different terminal devices according to the group index information in the BSR Group, which can realize the communication of multiple terminal device groups under a V2X service, ensuring the reliability of group communication and improving the communication efficiency.
  • a V2X service there may be multicast, unicast, and broadcast at the same time.
  • For broadcast there is an indicator to indicate the service type, for multicast, there is an indicator to indicate the group, for unicast ,
  • the network device cannot distinguish the propagation type (for example, the communication type) simply by the identification, that is, broadcast, multicast, or unicast. Therefore, the network device needs to obtain the propagation type information corresponding to the reported identifier, so as to configure different V2X side link resources for services of different propagation types.
  • the identifier is the destination identifier; for multicast services, the identifier is the group identifier; for unicast services, the identifier is the target UE identifier, then the network device
  • the type of propagation can be distinguished from the name.
  • the embodiments of the present application also provide a technical solution in which the network device can determine the propagation type.
  • the technical solutions of the multicast service transmission method in the foregoing embodiments may be adopted in the following embodiments.
  • the technical solutions of the following embodiments may be used first to enable the network device to determine the broadcast service, multicast service, or unicast service, and then the technical solution of the multicast service transmission method in the foregoing embodiments.
  • the technical solutions of the foregoing embodiments may be used to report group information or the BSR reported by the UE to the network device may include group index information, but this embodiment of the present application does not limit this .
  • FIG. 7 is a schematic flowchart of a transmission method according to an embodiment of the present application.
  • the method of FIG. 7 can be applied to the network architecture of FIG. 1.
  • the transmission method shown in FIG. 7 can be applied to the multicast, broadcast, and unicast scenarios of the V2X service.
  • the transmission method of FIG. 7 includes:
  • the first terminal device determines a first correspondence, where the first correspondence is used to indicate a propagation type corresponding to the destination identifier, and the propagation type includes any one of a multicast service, a unicast service, or a broadcast service.
  • the first terminal device reports the first correspondence to the network device.
  • the network device may determine the propagation type corresponding to at least one destination identifier after receiving the first correspondence reported by the first terminal device, so that the network device may determine that the multicast service, the unicast service, and the broadcast service are configured differently V2X sidelink resources.
  • the first terminal device reporting the first correspondence to the network device includes:
  • the first terminal device reports a list of second destination identifiers to the network device, wherein the list of second destination identifiers includes the correspondence between each destination identifier and the propagation type, and the propagation type may include multicast services , Unicast service or broadcast service.
  • the first terminal device may report the destination identifier through RRC signaling to indicate the propagation type corresponding to the destination identifier.
  • the first terminal device may report the destination identifier to the network device through RRC signaling to indicate that the propagation type corresponding to the destination identifier is the multicast service. It may also be that the first terminal device reports group information to the network device, and the group information can implicitly indicate that the propagation type corresponding to the destination identifier is a multicast service.
  • the first terminal device reporting the first correspondence to the network device includes:
  • the first terminal device reports a buffer status report BSR to the network device, where the BSR includes the destination identifier and information about the propagation type corresponding to the destination identifier.
  • the first terminal device may add a type field to the BSR to indicate that the reported destination identifier is a multicast service, a unicast service, or a broadcast service.
  • the name of each message is not limited in the embodiments of the present application. The name of each message is only an example, and each message may adopt other names as long as the functions it implements are the same.
  • the network device can obtain the type information corresponding to the reported ID, so as to configure different V2X side link resources for different types of services.
  • FIG. 8 is a schematic flowchart of a transmission method according to an embodiment of the present application.
  • the method of FIG. 8 can be applied to the network architecture of FIG. 1.
  • the transmission method shown in FIG. 8 can be applied to the multicast, broadcast, and unicast scenarios of the V2X service.
  • the transmission method shown in FIG. 8 includes steps 401 to 406, and the following steps 401 to 406 description.
  • Step 401 The network device sends a broadcast message to the first terminal device.
  • the broadcast message may include V2X frequency information supported by the cell.
  • Step 402 The first terminal device sends sidelink terminal device information (sidelink UE information) to the network device.
  • the above-mentioned side link terminal device information may include the correspondence between the service of interest to the first terminal device and the frequency.
  • the service may be represented by a destination ID.
  • the destination identifier may represent a type of service propagation; if the service is a unicast service, the destination identifier may represent the identifier assigned by the second terminal device for the unicast connection; if the service is multicast Business, the destination ID can represent a group ID.
  • the network device in order to enable the network device to distinguish the type of propagation and perform more flexible resource management, while reporting the destination identification, it can also indicate the propagation type corresponding to the destination identification, that is, broadcast, unicast, or multicast.
  • S420 shown in FIG. 7 may be that the first terminal device sends the sidelink terminal device information to the network device, and the sidelink terminal device information may include the first correspondence.
  • the propagation type corresponding to the service may be indicated; when the service is a broadcast service, the propagation type corresponding to the service may not be indicated.
  • an implicit manner may be used to indicate the propagation type corresponding to the service. For example, for a multicast service, you can carry the group information while reporting the target ID of the multicast service, for example, you can carry the number of group members; similarly, for the unicast service or the broadcast service, you can also use the implicit method Indicates the propagation type of the service.
  • Step 403 The network device sends V2X configuration information to the first terminal device.
  • the configuration information may include resource pool configuration.
  • the resource pool configuration may not distinguish the destination identifiers, that is, multiple destination identifiers may correspond to the same resource pool configuration; or, one destination identifier may correspond to one resource pool configuration.
  • each destination identifier may correspond to a resource pool configuration; or, different resource pool configurations may be performed for different propagation types.
  • the configuration information may further include mode information, where the mode information may include scheduling mode (NR2VMode1), or information about the mode of selecting resources (NRV2XMode2).
  • mode information may include scheduling mode (NR2VMode1), or information about the mode of selecting resources (NRV2XMode2).
  • the mode information may indicate that a destination identifier corresponds to mode 1 or mode 2, or may indicate that one or more logical information in a destination identifier corresponds to mode 1 or mode 2.
  • Step 404 The first terminal device sends a configuration complete message to the network device.
  • Step 405 The first terminal device sends a BSR to the network device.
  • the first terminal device may send a BSR to the network device, and the BSR may carry the destination identifier Destination identification index.
  • the destination identification index can indicate the position of the destination identification in the destination identification list reported in the sidelink terminal device information.
  • the value of the destination identification index can start from 0 or 1, and this application This is not limited.
  • a list of second destination identifiers may also be sent, where the list of second destination identifiers includes the correspondence between each destination identifier and the propagation type, and the propagation type may include multicast services, unicast services, or Any one of the broadcasting services.
  • the BSR may carry the destination identification index corresponding to the destination identification and the cache size corresponding to the destination identification index. The destination identification index is used to indicate the position of the destination identification in the list of the second destination identification.
  • the network device may determine the target service and the propagation type corresponding to the target service in the list of the second target identifier according to the target identification index included in the BSR, and the network device may be based on the target The service propagation type schedules the side link resources corresponding to the target service.
  • Step 406 The network device sends scheduling information to the first terminal device.
  • the network device can identify one or more frequencies according to the destination identification index carried in the BSR and the destination identification list previously received through the side link terminal device information, and the destination identification corresponds to Type of transmission. Select one frequency on the corresponding one or more frequencies, and select resources corresponding to the propagation type to send to the first terminal device.
  • FIG. 9 is a schematic flowchart of a transmission method according to an embodiment of the present application.
  • the method of FIG. 9 can be applied to the network architecture of FIG. 1.
  • the transmission method shown in FIG. 9 can be applied to the multicast, broadcast, and unicast scenarios of the V2X service.
  • the transmission method shown in FIG. 9 includes steps 501 to 505, and steps 501 to 505 are described in detail below. description.
  • the transmission method shown in FIG. 9 can be applied to the process of semi-persistent scheduling (SPS) configuration / configured grant of terminal equipment.
  • SPS semi-persistent scheduling
  • Step 501 The network device may send a broadcast message to the first terminal device.
  • the broadcast message may include V2X frequency information supported by the cell.
  • Step 502 The first terminal device may send sidelink terminal device information (sidelink UE information) to the network device.
  • sidelink UE information sidelink UE information
  • the above-mentioned side link terminal device information may include the correspondence between the service of interest to the first terminal device and the frequency.
  • the service may be represented by a destination ID.
  • the destination identifier may represent a service type; if the service is a unicast service, the destination identifier may represent the identifier assigned by the second terminal device to the unicast connection; if the service is a multicast service, Then the destination identification can represent a group identification.
  • the network device in order to enable the network device to distinguish the type of propagation and perform more flexible resource management, while reporting the destination identification, it can also indicate the propagation type corresponding to the destination identification, that is, broadcast, unicast, or multicast.
  • the propagation type corresponding to the service may be indicated; when the service is a broadcast service, the propagation type corresponding to the service may not be indicated.
  • the sidelink terminal device information can be reported as two items, so as to distinguish different propagation types corresponding to the same destination identifier.
  • Step 503 The first terminal device may send UE assistance information (UE Assistance Information) to the network device.
  • UE Assistance Information UE Assistance Information
  • the auxiliary information is used to indicate the business model.
  • the business model may include information such as data size, period, priority, and reliability corresponding to the business.
  • the auxiliary information may also include the destination identifier and the information of the business model corresponding to the destination identifier.
  • the V2X layer can ensure that the destination identifiers assigned to different propagation types, different unicast connections, and different groups will not conflict, then after the network equipment receives the destination identifier, it combines the side link
  • the terminal device information can determine the propagation type corresponding to the destination identifier.
  • the network device can configure SPS / configured grant resources for the purpose identifier.
  • SPS / configured grant resources can correspond to different propagation types.
  • the first terminal device needs to further indicate the propagation type corresponding to the destination identifier when reporting the destination identifier.
  • the network device determines the resource pool configuration for the propagation type on the corresponding frequency based on the destination identification and propagation type, combined with the previously received sidelink terminal device information.
  • the network device may schedule the side link resources corresponding to the service based on the service propagation type and service model corresponding to the service.
  • Step 504 The network device may send an RRC reconfiguration message to the first terminal device.
  • Step 505 The first terminal device sends an RRC reconfiguration complete message to the network device.
  • the network device can differentiate and manage different propagation types, that is, different time-frequency resources can be configured for broadcast, multicast, and unicast network devices.
  • the first terminal device reports the group information of at least one terminal device group to which the first terminal device belongs to the network device.
  • the network device can improve the wireless according to the group information.
  • the communication efficiency of the access network may execute the foregoing various methods of the embodiments of the present application, that is, the specific working processes of the following various products, and refer to the corresponding processes in the foregoing method embodiments.
  • the communication device 500 may include a sending unit 510 and a receiving unit 520.
  • the communication device 500 may correspond to the first terminal device in the foregoing method embodiment, for example, may be the first terminal device, or a chip configured in the first terminal device.
  • the communication device 500 can perform various steps performed by the first terminal device in FIG. 3.
  • the sending unit 510 is configured to report group information of at least one terminal device group to which the first terminal device belongs.
  • the receiving unit 520 is configured to receive at least one configuration resource sent by the network device, and each configuration resource in the at least one configuration resource corresponds to one terminal device group in the at least one terminal device group, and the at least one Configure resources for the at least one terminal device group to transmit data of the V2X side link.
  • the group information includes at least one piece of identification information, and each piece of identification information in the at least one piece of identification information is used to indicate a terminal device group to which the first terminal device belongs.
  • the group information also includes the number of group members, the rate requirements of the group services, the life cycle of the group services, the priority of the group services, the delay requirements of the group services, and the reliability requirements of the group services , The distance span requirement of the services within the group, the data size of the services within the group, the period of the services within the group, the number / index of the first terminal device within the group, the group member identification, any of the first indication information or Any of several items, wherein the first indication information is used to identify a master terminal device in the at least one terminal device group, and the master terminal device is used to manage all terminal devices in the terminal device group.
  • the at least one configuration resource is at least one resource pool, or the at least one configuration resource is a group-specific resource corresponding to the at least one terminal device group, and the group-specific resource includes a group-specific semi-static scheduling SPS Resources or configuration guarantee resources, or the at least one configuration resource is a resource corresponding to each terminal device in the at least one terminal device group.
  • the receiving unit 520 is further configured to:
  • the request message is used to request resources in the group dedicated resources
  • the first terminal device and the third terminal device belong to the same terminal device group
  • the group is dedicated Resources include group-specific semi-static SPS resources or configuration guarantee resources.
  • the at least one terminal group is determined by the first terminal device, or the at least one terminal group is determined by an application program APP layer.
  • the sending unit 510 is also used to:
  • BSR buffer status report
  • the BSR includes at least one group index information, and each group index information in the at least one group index information is used to indicate a terminal device to which the first terminal device belongs Group; send first data to a second terminal device, the first data includes the at least one identification information and second indication information, the second indication information is used to indicate that the first data is a multicast service data.
  • the sending unit 510 is also used to:
  • the sending unit 510 is also used to:
  • a list of first destination identifiers is reported to the network device, the first destination identifier is used to indicate a V2X service type, and the first destination identifier list includes a correspondence between each destination identifier and at least one group identifier.
  • the BSR includes destination identification indication information and group identification indication information
  • the destination identification indication information is used to index the destination identification in the list of the first destination identification
  • the group identification indication information is used to index The group identifier in the list of the first destination identifier.
  • the receiving unit 520 is also used to:
  • control information sent by the network device including the at least one identification information, the control information indicating a resource for transmitting side link data of a V2X service, the resource belonging to the at least one Configure resources.
  • the medium access control MAC protocol data unit of the first data includes at least one piece of identification information, or the medium access control MAC protocol data unit of the first data includes the at least one piece of identification information and the multicast service Identification information, each of the at least one piece of identification information is used to indicate a terminal device group to which the first terminal device belongs.
  • the first data is data scrambled according to a first identification
  • the first identification is the at least one identification information
  • the first identification is an identification corresponding to the at least one identification information .
  • the sending unit and the receiving unit may be the same transceiver unit, and the communication device 500 may include other units in addition to the sending unit and the receiving unit, which is not limited in this application.
  • the communication device 500 may correspond to the first terminal device in the foregoing method embodiment, for example, may be the first terminal device, or a chip configured in the first terminal device.
  • the communication device 500 can perform various steps performed by the first terminal device in FIG. 6.
  • the sending unit 510 is used to report a buffer status report BSR, where the BSR includes group index information, and each group index information in the at least one group index information is used to indicate a terminal device group to which the first terminal device belongs ;
  • the sending unit 510 is further configured to send first data to the second terminal device, where the first data includes at least one piece of identification information, and each piece of identification information in the at least one piece of identification information is used to indicate the first terminal device A terminal device group to which it belongs.
  • the first data further includes second indication information, and the second indication information is used to indicate that the first data is data of a multicast service.
  • the sending unit 510 is also used to:
  • the sending unit 510 is also used to:
  • the sending unit 510 is also used to:
  • a list of first destination identifiers is reported to the network device, the first destination identifier is used to indicate a V2X service type, and the first destination identifier list includes a correspondence between each destination identifier and at least one group identifier.
  • the BSR includes destination identification indication information and group identification indication information
  • the destination identification indication information is used to index the destination identification in the list of the first destination identification
  • the group identification indication information is used to index The group identifier in the list of the first destination identifier.
  • the communication device further includes a receiving unit 520, configured to receive control information sent by the network device, the control information includes the at least one identification information, and the control information indicates a V2X service used for transmission A resource for side link data, where the resource belongs to the at least one configuration resource.
  • a receiving unit 520 configured to receive control information sent by the network device, the control information includes the at least one identification information, and the control information indicates a V2X service used for transmission A resource for side link data, where the resource belongs to the at least one configuration resource.
  • the media access control MAC protocol data unit of the first data includes at least one piece of identification information, or the media access control MAC protocol data unit of the first data includes at least one piece of identification information and the multicast service Identification information.
  • the first data is data scrambled according to a first identification
  • the first identification is the at least one identification information
  • the first identification is an identification corresponding to the at least one identification information .
  • the sending unit and the receiving unit may be the same transceiver unit, and the communication device 500 may include other units in addition to the sending unit and the receiving unit, which is not limited in this application.
  • the communication device 500 may correspond to the first terminal device in the foregoing method embodiment, for example, may be the first terminal device, or a chip configured in the first terminal device.
  • the communication device 500 can perform various steps performed by the first terminal device in FIG. 7.
  • the communication device 500 may include a sending unit 510, a receiving unit 520, and a processing unit.
  • the processing unit is configured to determine a first correspondence relationship, where the first correspondence relationship is used to indicate a propagation type corresponding to the destination identifier, and the propagation type includes any one of a multicast service, a unicast service, or a broadcast service;
  • the sending unit 510 is configured to report the first correspondence to the network device.
  • the sending unit 510 is specifically configured to:
  • the list of second destination identifiers includes the correspondence between each destination identifier and the propagation type, and the propagation type includes multicast services, unicast services, or broadcast services Any of them.
  • the sending unit 510 is specifically configured to:
  • a buffer status report BSR is reported to the network device.
  • the BSR includes the destination identifier and information about the propagation type corresponding to the destination identifier.
  • the propagation type includes any one of a multicast service, a unicast service, or a broadcast service.
  • the sending unit 510 is specifically configured to:
  • the sending unit 510 is also used to:
  • the BSR includes an index of the destination identifier and a cache size corresponding to the index of the destination identifier, and the index of the destination identifier is used to indicate the Target business.
  • the sending unit 510 is also used to:
  • auxiliary information is used to indicate a business model
  • the business model includes any one or more of data size, period, priority, and reliability.
  • the communication device may also be the second terminal device or the third terminal device in any of the foregoing method embodiments, to implement the steps of the second terminal device or the third terminal device in any of the foregoing implementation manners or Features.
  • the communication device 500 may correspond to the method of the first terminal device in the foregoing method embodiments, and the above and other management operations and / or functions of each unit / module in the communication device 500 are implemented separately
  • the corresponding steps of the method of the first terminal device in the foregoing method embodiments can also achieve the beneficial effects in the foregoing method embodiments, and for the sake of brevity, they will not be repeated here.
  • each unit / module in the communication device 500 may be implemented in the form of software and / or hardware, which is not specifically limited.
  • the communication device 500 is presented in the form of functional modules.
  • the "unit” herein may refer to a specific application integrated circuit ASIC, a circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and / or other devices that can provide the above-mentioned functions.
  • the communication device 500 of the above solution may have a function of implementing the corresponding steps of the first terminal device, the second terminal device, or the third terminal device in the above method; the function may be implemented by hardware, or may be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions; for example, the sending unit may be replaced by a transmitter, the receiving unit may be replaced by a receiver, and other units, such as a determination unit, etc. may be replaced by processors, which are respectively executed The sending and receiving operations and related processing operations in each method embodiment.
  • the communication device in FIG. 10 may also be a chip or a chip system, for example, a system on chip (SoC).
  • the receiving unit and the sending unit may be the transceiver circuit of the chip, which is not limited herein.
  • the communication device 600 may include a sending unit 610 and a receiving unit 620.
  • the communication device 600 may correspond to the network device in the foregoing method embodiment, for example, it may be a network device, or a chip configured in the network device.
  • the communication device 600 can perform various steps performed by the network device in FIG. 3.
  • the receiving unit 620 is configured to receive group information of at least one terminal device group to which the first terminal device belongs reported by the first terminal device;
  • a sending unit 610 configured to send at least one configuration resource to the first terminal device according to the group information, each configuration resource in the at least one configuration resource and a terminal device group in the at least one terminal device group
  • the at least one configuration resource is used by the at least one terminal device group to transmit data of the V2X side link.
  • the group information includes at least one piece of identification information, and each piece of identification information in the at least one piece of identification information is used to indicate a terminal device group to which the first terminal device belongs.
  • the group information also includes the number of group members, the rate requirements of the group services, the life cycle of the group services, the priority of the group services, the delay requirements of the group services, and the reliability requirements of the group services , The distance span requirement of the services within the group, the data size of the services within the group, the period of the services within the group, the number / index of the first terminal device within the group, the group member identification, any of the first indication information or Any of several items, wherein the first indication information is used to identify a master terminal device in the at least one terminal device group, and the master terminal device is used to manage all terminal devices in the terminal device group.
  • the at least one configuration resource is at least one resource pool, or the at least one configuration resource is a group-specific resource corresponding to the at least one terminal device group, and the group-specific resource includes a group-specific semi-static scheduling SPS Resources or configuration guarantee resources, or the at least one configuration resource is a resource corresponding to each terminal device in the at least one terminal device group.
  • the at least one terminal group is determined by the first terminal device, or the at least one terminal group is determined by an application program APP layer.
  • the receiving unit 620 is also used to:
  • the receiving unit 620 is also used to:
  • the at least one group index information is used to indicate a group identification in the group identification list.
  • the receiving unit 620 is also used to:
  • the first destination identifier is used to indicate a V2X service type
  • the list of first destination identifiers includes a correspondence between each destination identifier and at least one group identifier .
  • the BSR includes destination identification indication information and group identification indication information
  • the destination identification indication information is used to index the destination identification in the list of the first destination identification
  • the group identification indication information is used to index The group identifier in the list of the first destination identifier.
  • the sending unit 610 is also used to:
  • control information includes the at least one identification information
  • the control information indicates a resource for transmitting side link data of a V2X service
  • the at least one identification information Each identification information of is used to indicate a terminal device group to which the first terminal device belongs, and the resource belongs to the at least one configuration resource.
  • the sending unit and the receiving unit may be the same transceiver unit, and the communication device 500 may include other units in addition to the sending unit and the receiving unit, which is not limited in this application.
  • the communication device 600 may correspond to the network device in the foregoing method embodiment, for example, it may be a network device, or a chip configured in the network device.
  • the communication device 600 can perform various steps performed by the network device in FIG. 6.
  • the communication device 600 may include a sending unit 610, a receiving unit 620, and a processing unit.
  • the receiving unit 620 is configured to receive a buffer status report BSR reported by the first terminal device, where the BSR includes at least one piece of identification information, and each piece of identification information in the at least one piece of identification information is used to indicate that the first terminal device belongs A group of terminal equipment;
  • the processing unit is configured to determine at least one terminal device group to which the first terminal device belongs based on the at least one identification information.
  • the first data further includes second indication information, and the second indication information is used to indicate that the first data is data of a multicast service.
  • the receiving unit 620 is also used to:
  • the first destination identifier is used to indicate a V2X service type
  • the list of first destination identifiers includes a correspondence between each destination identifier and at least one group identifier .
  • the BSR includes destination identification indication information and group identification indication information
  • the destination identification indication information is used to index the destination identification in the list of the first destination identification
  • the group identification indication information is used to index The group identifier in the list of the first destination identifier.
  • the communication device further includes a sending unit 610, configured to send control information to the first terminal device, where the control information includes the at least one identification information, and each of the at least one identification information It is used to indicate a terminal device group to which the first terminal device belongs, and the control information indicates a resource for transmitting side link data of a V2X service.
  • a sending unit 610 configured to send control information to the first terminal device, where the control information includes the at least one identification information, and each of the at least one identification information It is used to indicate a terminal device group to which the first terminal device belongs, and the control information indicates a resource for transmitting side link data of a V2X service.
  • the sending unit and the receiving unit may be the same transceiver unit, and the communication device 600 may include other units in addition to the sending unit and the receiving unit, which is not limited in this application.
  • the communication device 600 may correspond to the network device in the foregoing method embodiment, for example, it may be a network device, or a chip configured in the network device.
  • the communication device 600 can perform various steps performed by the network device in FIG. 7.
  • the communication device 600 may include a sending unit 610, a receiving unit 620, and a processing unit.
  • the receiving unit 620 is configured to receive a first correspondence reported by the first terminal device, where the first correspondence is used to indicate a propagation type corresponding to the destination identifier, and the propagation type includes multicast service, unicast service, or broadcast service. Any of
  • the processing unit is configured to determine a propagation type corresponding to at least one destination identifier according to the first correspondence.
  • the receiving unit 620 is specifically configured to:
  • the list of second destination identifiers includes the correspondence between each destination identifier and the propagation type, and the propagation type includes multicast services, single Either broadcast service or broadcast service.
  • the receiving unit 620 is specifically configured to:
  • the BSR includes information about a destination identifier and a propagation type corresponding to the destination identifier, and the propagation type includes multicast service, unicast service, or broadcast service anyone.
  • the receiving unit 620 is specifically configured to:
  • the receiving unit 620 is also used to:
  • the BSR includes an index of the destination identifier and a buffer size corresponding to the index of the destination identifier, and the index of the destination identifier is used to indicate the second destination identifier Target business in the list.
  • processing unit is also used to:
  • the side link resource scheduled for the first terminal device is determined according to the propagation type of the service corresponding to the index of the destination identifier.
  • the receiving unit 620 is also used to:
  • auxiliary information sent by the first terminal device, where the auxiliary information is used to indicate a service model, and the service model includes any one or more of data size, period, priority, and reliability.
  • processing unit is also used to:
  • the side link resource configured for the first terminal device is determined according to the propagation type and the service model.
  • the communication device 600 may correspond to the method of the network device in the foregoing method embodiment, and the above and other management operations and / or functions of each unit / module in the communication device 600 are respectively for implementing the foregoing method
  • the corresponding steps of the method of the network device in the embodiment can therefore also achieve the beneficial effects in the foregoing method embodiments, and for the sake of brevity, they will not be repeated here.
  • each unit / module in the communication device 600 may be implemented in the form of software and / or hardware, which is not specifically limited.
  • the communication device 600 is presented in the form of functional modules.
  • the "unit” herein may refer to a specific application integrated circuit ASIC, a circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and / or other devices that can provide the above-mentioned functions.
  • the communication device 600 of the above solution has a function of implementing the corresponding steps performed by the network device in the above method; the function may be implemented by hardware, or may be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions; for example, the sending unit may be replaced by a transmitter, the receiving unit may be replaced by a receiver, and other units, such as a determination unit, etc. may be replaced by processors, which are respectively executed The sending and receiving operations and related processing operations in each method embodiment.
  • the communication device in FIG. 11 may also be a chip or a chip system, for example, a system on chip (SoC).
  • the receiving unit and the sending unit may be the transceiver circuit of the chip, which is not limited herein.
  • the information device 800 may be a first terminal device, which is applied to the system shown in FIG. 1 and performs the function of the first terminal device in the above method embodiment.
  • the first terminal device 800 includes a processor 810 and a transceiver 820.
  • the first terminal device 800 further includes a memory 830.
  • the processor 810, the transceiver 802, and the memory 830 can communicate with each other through an internal connection path to transfer control and / or data signals.
  • the memory 2030 is used to store a computer program, and the processor 810 is used from the memory 830 Call and run the computer program to control the transceiver 820 to send and receive signals.
  • the first terminal device 800 may further include an antenna 840, configured to send uplink data or uplink control signaling output by the transceiver 820 through a wireless signal.
  • the processor 810 and the memory 830 may be combined into a processing device.
  • the processor 810 is used to execute the program code stored in the memory 830 to implement the above functions.
  • the memory 830 may also be integrated in the processor 810 or independent of the processor 810.
  • the processor 810 may correspond to the processing unit of the communication device 500.
  • the above transceiver 820 may correspond to the receiving unit 520 and the sending unit 510 in FIG. 10, and may also be referred to as a communication unit.
  • the transceiver 820 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). Among them, the receiver is used to receive signals, and the transmitter is used to transmit signals.
  • the terminal device 800 shown in FIG. 12 can implement various processes involving the first terminal device in the method embodiments shown in FIGS. 3, 6, and 7.
  • the operations and / or functions of each module in the first terminal device 800 are respectively for implementing the corresponding processes in the above method embodiments.
  • the foregoing processor 810 may be used to perform the actions described in the foregoing method embodiments and implemented internally by the first terminal device, and the transceiver 820 may be used to perform the first terminal device described in the foregoing method embodiment to send to or from the network device Action received by the network device.
  • the transceiver 820 may be used to perform the first terminal device described in the foregoing method embodiment to send to or from the network device Action received by the network device.
  • the first terminal device 800 may further include a power supply 850, which is used to provide power to various devices or circuits in the terminal device.
  • a power supply 850 which is used to provide power to various devices or circuits in the terminal device.
  • the first terminal device 800 may further include one or more of an input unit 860, a display unit 870, an audio circuit 880, a camera 890, a sensor 801, etc.
  • the audio circuit may further include a speaker 882, a microphone 884, and the like.
  • the communication device 800 may also be the second terminal device or the third terminal device in any of the foregoing method embodiments to implement the steps of the second terminal device or the third terminal device in any of the foregoing implementation manners Or function.
  • FIG. 13 is a schematic structural diagram of a communication device 900 provided by an embodiment of the present application, and may be, for example, a schematic structural diagram of a network device.
  • the network device 900 can be applied to the system shown in FIG. 1 to perform the functions of the network device in the above method embodiments.
  • the exemplary network device 900 may include one or more radio frequency units, such as a remote radio unit (RRU) 910 and one or more baseband units (BBU) (also available Called digital unit, digital unit (DU) 920.
  • RRU 910 may be called a communication unit or a transceiver unit, and corresponds to the sending unit 610 and the receiving unit 620 in FIG. 11.
  • the transceiver unit 910 may also be called a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 911 and a radio frequency unit 912.
  • the transceiving unit 910 may include a receiving unit and a transmitting unit, the receiving unit may correspond to a receiver (or receiver, receiving circuit), and the transmitting unit may correspond to a transmitter (or transmitter, transmitting circuit).
  • the RRU 910 part is mainly used for the transmission and reception of radio frequency signals and the conversion of radio frequency signals and baseband signals, for example, for sending the first information to the terminal device.
  • the BBU 920 part is mainly used for baseband processing and control of network equipment.
  • the RRU910 and the BBU 920 may be physically arranged together, or may be physically separated, that is, distributed base stations.
  • the BBU 920 is the control center of the network device, and may also be called a processing unit, which may correspond to the processing unit included in the communication device 600, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, spread spectrum, etc. Wait.
  • the BBU processing unit
  • the BBU may be used to control the base station to perform the operation flow on the network device in the above method embodiment, for example, to generate the above instruction information.
  • the BBU920 may be composed of one or more boards, and the plurality of boards may jointly support a wireless access network of a single access standard (such as an LTE network), and may also support wireless access of different access standards. Access network (such as LTE network, 5G network or other networks).
  • the BBU 920 also includes a memory 921 and a processor 922.
  • the memory 921 is used to store necessary instructions and data.
  • the processor 922 is used to control the network device to perform necessary actions, for example, to control the network to execute the operation flow of the network device in the foregoing method embodiment.
  • the memory 921 and the processor 922 may serve one or more single boards. In other words, the memory and the processor can be set separately on each board. It is also possible that multiple boards share the same memory and processor. In addition, each board can also be provided with necessary circuits.
  • the network device 900 shown in FIG. 13 can implement various processes related to the network device in the method embodiments of FIGS. 3, 6, and 7.
  • the operations and / or functions of each module in the network device 900 are respectively to implement the corresponding processes in the above method embodiments.
  • the above-mentioned BBU 920 may be used to perform the actions described in the foregoing method embodiment that are internally implemented by the network device, and the RRU 910 may be used to perform the actions described in the previous method embodiment that the network device sends to or receives from the terminal device.
  • the RRU 910 may be used to perform the actions described in the previous method embodiment that the network device sends to or receives from the terminal device.
  • An embodiment of the present application further provides a processing device, including a processor and an interface; the processor is used to execute the method in any of the foregoing method embodiments.
  • the above processing device may be a chip.
  • the processing device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or a system on chip (SoC), or It is a central processor (CPU), it can also be a network processor (NP), it can also be a digital signal processing circuit (digital signal processor, DSP), or a microcontroller (micro controller) , MCU), can also be a programmable controller (programmable logic device, PLD) or other integrated chips.
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • CPU central processor
  • NP network processor
  • DSP digital signal processor
  • microcontroller micro controller
  • MCU microcontroller
  • PLD programmable logic device
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor or instructions in the form of software.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied and executed by a hardware processor, or may be executed and completed by a combination of hardware and software modules in the processor.
  • the software module may be located in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, and registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware. In order to avoid repetition, they will not be described in detail here.
  • the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capabilities.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the aforementioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components .
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application may be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied and executed by a hardware decoding processor, or may be executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, and registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electronically Erasable programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (random access memory, RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • synchronous RAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • double data SDRAM double data SDRAM
  • DDR SDRAM enhanced synchronous dynamic random access memory
  • ESDRAM synchronous connection dynamic random access memory
  • direct RAMbus RAM direct RAMbus RAM
  • the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code runs on the computer, the computer is caused to execute the embodiment shown in FIG. 3 Transmission method.
  • the present application also provides a computer-readable medium that stores program code, and when the program code runs on a computer, the computer is caused to execute the embodiment shown in FIG. 3 Methods.
  • the present application further provides a system, which includes the foregoing one or more terminal devices and one or more network devices.
  • the computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server or data center Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device including a server, a data center, and the like integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disc, SSD)) etc.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a high-density digital video disc (digital video disc, DVD)
  • a semiconductor medium for example, a solid state disc, SSD
  • the network device in each of the above device embodiments completely corresponds to the network device or terminal device in the terminal device and method embodiments, and the corresponding steps are performed by corresponding modules or units, for example, the communication unit (transceiver) performs The steps of sending, other than sending and receiving, can be executed by the processing unit (processor).
  • the function of the specific unit can refer to the corresponding method embodiment.
  • At least one refers to one or more, and “multiple” refers to two or more.
  • “And / or” describes the relationship of related objects, indicating that there can be three relationships, for example, A and / or B, which can mean: A exists alone, A and B exist at the same time, B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the related object is a "or” relationship.
  • “At least one of the following” or a similar expression refers to any combination of these items, including any combination of a single item or a plurality of items.
  • At least one (a) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c may be single or multiple.
  • a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program, and / or a computer.
  • the application running on the computing device and the computing device can be components.
  • One or more components can reside in a process and / or thread of execution, and a component can be localized on one computer and / or distributed between two or more computers.
  • these components can execute from various computer readable media having various data structures stored thereon.
  • the component may, for example, be based on a signal having one or more data packets (eg, data from two components that interact with another component between the local system, the distributed system, and / or the network, such as the Internet that interacts with other systems through signals) Communicate through local and / or remote processes.
  • data packets eg, data from two components that interact with another component between the local system, the distributed system, and / or the network, such as the Internet that interacts with other systems through signals
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a division of logical functions.
  • there may be other divisions for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, 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 may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • each functional unit can be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented using software, it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions (programs). When the computer program instructions (programs) are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server or data center Transmit to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more available medium integrated servers, data centers, and the like.
  • the usable medium may be a magnetic medium (eg, floppy disk, hard disk, magnetic tape), optical medium (eg, DVD), or semiconductor medium (eg, solid state disk (SSD)), or the like.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application essentially or part of the contribution to the existing technology or part of the technical solution can be embodied in the form of a software product, the computer software product is stored in a storage medium, including Several instructions are used to enable a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program codes .

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Abstract

La présente invention concerne un procédé de transmission et un dispositif de communication. Le procédé de transmission comprend les étapes suivantes : un premier dispositif terminal envoie, à un dispositif de réseau, des informations de groupe d'au moins un groupe de dispositifs terminaux auquel appartient le premier dispositif terminal ; et le premier dispositif terminal reçoit au moins une ressource de configuration envoyée par le dispositif de réseau, chaque ressource de configuration parmi la ou les ressources de configuration correspondant à un groupe de dispositifs terminaux dans le ou les groupes de dispositifs terminaux, et la ou les ressources de configuration sont utilisées pour que le ou les groupes de dispositifs terminaux transmettent des données d'une liaison latérale V2X dans un Internet des véhicules. La solution technique des modes de réalisation de la présente invention peut assurer la fiabilité de communication de groupe entre un premier dispositif terminal et un dispositif de réseau, ce qui améliore l'efficacité de communication.
PCT/CN2019/113958 2018-11-02 2019-10-29 Procédé de transmission et dispositif de communication WO2020088441A1 (fr)

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