WO2020088441A1

WO2020088441A1 - Transmission method and communication device

Info

Publication number: WO2020088441A1
Application number: PCT/CN2019/113958
Authority: WO
Inventors: 彭文杰; 范强; 王君; 戴明增
Original assignee: 华为技术有限公司
Priority date: 2018-11-02
Filing date: 2019-10-29
Publication date: 2020-05-07
Also published as: CN113382388A; CN113382388B

Abstract

Provided in the present application are a transmission method and a communication device. The transmission method comprises: a first terminal device sending, to a network device, group information of at least one terminal device group to which the first terminal device belongs; and the first terminal device receiving at least one configuration resource sent by the network device, wherein 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 configuration resource is used for the at least one terminal device group to transmit data of a V2X side link in an Internet of Vehicles. The technical solution of the embodiments of the present application can ensure the reliability of group communication between a first terminal device and a network device, thereby improving the communication efficiency.

Description

Transmission method and communication equipment

This application requires a Chinese patent application filed with the Chinese Patent Office on November 02, 2018, with the application number 201811301515.X, and the application name is "Transmission Method and Communication Equipment", and submitted to the Chinese Patent Office on April 30, 2019, with the application The priority of the Chinese patent application numbered 201910360603.5 and the application name is "Transmission Method and Communication Equipment", the entire content of which is incorporated by reference in this application.

Technical field

The present application relates to the field of communication, and more specifically, to a transmission method and communication device.

Background technique

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.

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.

However, it is clearly proposed in the new radio (NR) technology to support multicast services. 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.

Summary of the invention

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.

In the first aspect, a transmission method is provided, 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.

In the embodiment of the present application, 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.

In other words, in the embodiment of the present application, 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 In this application, the specific form of carrying information indicating at least one configuration resource is not limited in this application.

For example, in the embodiment of the present 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. Alternatively, after receiving the group information sent by the first terminal device, the network device may configure the resources of the V2X side link based on each frequency point, which is not limited in this application.

With reference to the first aspect, in some implementations of the first aspect, 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.

With reference to the first aspect, in some implementations of the first aspect, 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.

It should be noted that 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. For example, 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.

In the embodiment of the present application, 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. According to the group information, the network device may determine The size of the resources configured by the terminal device group.

With reference to the first aspect, in some implementations of the first aspect, 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.

In the embodiment of the present application, 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.

For example, in the embodiment of the present application, it is assumed that 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. Or, 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 resources configured for each terminal device in.

With reference to the first aspect, in certain implementations of the first aspect, 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.

In the embodiment of the present application, 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.

With reference to the first aspect, in some implementation manners of the first aspect, 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.

With reference to the first aspect, in some implementation manners of the first aspect, 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 .

In the embodiment of the present application, 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 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 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.

With reference to the first aspect, in some implementation manners of the first aspect, 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 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.

With reference to the first aspect, in some implementation manners of the first aspect, 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.

For example, the group ID may be filled in the DST field of the MAC PDU of the first data.

For example, 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.

For example, it may be that the group ID is added after the DST field of the MAC PDU of the first data.

For example, it may be that 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.

With reference to the first aspect, in some implementation manners of the first aspect, the first data is data scrambled according to the first identifier, the first identifier is at least one piece of identification information, or the first identifier is at least one The identification corresponding to the identification information.

For example, the first data is data scrambled according to a first identifier, the first identifier is one of the at least one identifier information, or the first identifier is an identifier corresponding to one of the at least one identifier information .

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 BSR also includes information on the propagation type of the destination identifier, and the propagation type is a multicast service.

In the second aspect, a transmission method is provided, 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.

With reference to the second aspect, in some implementations of the second aspect, 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 .

With reference to the second aspect, in some implementations of the second aspect, 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.

In the embodiment of the present application, 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.

With reference to the second aspect, in certain implementations of the second aspect, 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.

With reference to the second aspect, in some implementations of the second aspect, 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.

With reference to the second aspect, in some implementation manners of the second aspect, 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 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 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 .

With reference to the second aspect, in some implementation manners of the second aspect, 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 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 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.

With reference to the second aspect, in some implementations of the second aspect,

In a third aspect, a transmission method is provided, 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.

In the embodiment of the present application, 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.

With reference to the third aspect, in some implementation manners of the third aspect, 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.

With reference to the third aspect, in some implementation manners of the third aspect, 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 .

With reference to the third aspect, in some implementation manners of the third aspect, 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 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.

With reference to the third aspect, in some implementations of the third aspect, 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.

With reference to the third aspect, in some implementation manners of the third aspect, the first data is data scrambled according to the first identifier, the first identifier is at least one piece of identification information, or the first identifier is at least one The identification corresponding to the identification information.

According to a fourth aspect, a transmission method is provided, 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.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the method further includes:

With reference to the fourth aspect, in some implementation manners of the fourth aspect, 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 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.

According to a fifth aspect, a transmission method is provided, 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.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, 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 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.

With reference to any one of the foregoing aspects or any one of its implementations, or as an independent implementation, in a possible implementation provided by the present application, 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.

In a possible implementation manner, 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.

In a possible implementation manner, 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.

According to a sixth aspect, a transmission method is provided, 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.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, 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 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.

With reference to any one of the foregoing aspects or any one of its implementations, or as an independent implementation, in a possible implementation provided by the present application, 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.

In a possible implementation manner, 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.

In a possible implementation manner, 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.

In a possible implementation manner, 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.

In a possible implementation manner, 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.

In a seventh aspect, a communication device is provided, 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. Optionally, the communication device further includes a memory. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface.

In an implementation manner, the communication device is a first terminal device. When the communication device is the first terminal device, the communication interface may be a transceiver or an input / output interface.

In another implementation manner, the communication device is a chip configured in the first terminal device. When the communication device is a chip configured in the first terminal device, the communication interface may be an input / output interface of the chip.

Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

In one implementation, the communication device is a network device. When the communication device is a network device, the communication interface may be a transceiver or an input / output interface.

In another implementation manner, the communication device is a chip configured in a network device. When the communication device is a chip configured in a network device, the communication interface may be an input / output interface of the chip.

It can be understood that 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 .

In another implementation manner, 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.

Exemplarily, the communication device may include a receiving unit and a sending unit. For example, 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. When it is a chip in a communication device, 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.).

In an eighth aspect, a processor is provided, 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.

In a specific implementation process, the processor may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and 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, and the input circuit and output 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.

In a ninth aspect, a processing device is provided, 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.

Optionally, there are one or more processors and one or more memories.

Alternatively, the memory may be integrated with the processor, or the memory and the processor are provided separately.

In the specific implementation process, 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.

It should be understood that the relevant data interaction process, for example, sending group information may be a process of outputting group information from the processor, and receiving group information may be a process of receiving group information by the processor. Specifically, the processed output data may be output to the transmitter, and the input data received by the processor may come from the receiver. Among them, 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. 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.

According to a tenth aspect, a computer program product is provided. The 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.

In an eleventh aspect, a computer-readable medium is provided, the 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.

In a twelfth aspect, a communication system is provided, including any one or more of the following: the foregoing network device, the foregoing first terminal device, and the foregoing second terminal device.

BRIEF DESCRIPTION

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.

Figure 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.

4 is a schematic diagram of a MAC PDU data packet format according to an embodiment of the present application.

5 is a schematic diagram of a MAC PDU data packet format according to another embodiment of the present application.

6 is a schematic diagram of a transmission method according to another embodiment of the present application.

7 is a schematic diagram of a transmission method according to yet another embodiment of the present application.

8 is a schematic diagram of a transmission method according to yet another embodiment of the present application.

9 is a schematic diagram of a transmission method according to yet another embodiment of the present application.

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.

12 is another schematic structural diagram of a communication device according to an embodiment of the present application.

13 is another schematic structural diagram of a communication device according to an embodiment of the present application.

detailed description

The technical solutions in this application will be described below with reference to the drawings.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: global mobile communication (global system for mobile communications, GSM) system, code division multiple access (code division multiple access (CDMA) system, broadband code division multiple access) (wideband code division multiple access (WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE Time division duplex (time division duplex, TDD), universal mobile communication system (universal mobile telecommunication system, UMTS), global interconnected microwave access (worldwide interoperability for microwave access, WIMAX) communication system, future fifth generation (5th generation, 5G) system or new radio (NR), etc.

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 The terminal device and the like are not limited in this embodiment of the present application.

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, or 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.

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. Moreover, 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. For example, 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.

In addition, various aspects or features of the present application may be implemented as methods, devices, or articles using standard programming and / or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, 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.). In addition, the various storage media described herein may represent one or more devices and / or other machine-readable media for storing information. The term "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. As shown in FIG. 1, 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). It should be understood that the V2X device in FIG. 1 may be an Internet of Things device, such as a UE.

It should also be understood that the flow of arrows in FIG. 1 is only exemplarily described as a V2X device, and does not limit the embodiments of the present application. In fact, the communication between V2X devices may be bidirectional, and the V2X device may also communicate with a network device. For upstream communication, there is no specific limitation on this.

It should be noted that, as shown in FIG. 1, the same V2X device may belong to different groups, for example, a V2X device may belong to group 1 or group 2.

For example, as shown in Figure 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. Show. 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, there is another V2N that can be included in V2I, V2N refers to the communication between LTE-based vehicles and base stations / networks. as shown in picture 2.

Roadside devices (RSUs) 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.

In LTE V2X, the user plane communication protocol stack of the PC5 interface, for example, takes the communication between UE A and UE B as an example, and UE A communicates with UE B through the PC5 interface. Among them, 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.

For ease of understanding, the following introduces related terms involved in this article.

1. Car-to-everything (V2X) business

At present, 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.

Among them, 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.

For example, through 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. For V2I communication, in addition to the interaction of the above-mentioned safety information, roadside infrastructure, such as roadside units (RSU), can provide various service information and data network access for vehicles. Internal entertainment and other functions have greatly improved traffic intelligence.

2. Centralized scheduling transmission mode (also called Mode3)

Long-term evolution (LTE) system is currently the mainstream wireless communication technology, and it has formulated relevant standards for V2X service characteristics and transmission requirements to support V2X communication based on LTE. Among them, in V2X communication based on the LTE system, side link communication is the main communication method. In side link communication, 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.

It should be noted that the V2X of this type of mode in NR may also be called Mode1.

3. Distributed transmission mode (also called Mode4)

Distributed transmission mode (also called Mode4): In a scenario with network coverage, the network device configures a resource pool for the terminal device through SIB messages or dedicated radio resource control (Dedicated RRC) signaling. When 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. In a scenario where there is no network coverage, 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.

It should be noted that the V2X of this type of mode in NR may also be called Mode2.

4. Cache status report (buffer status report, BSR)

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.

5. Logic channel group (logic channel group, LCG)

LCG refers to grouping one or more logical channels. In order to reduce the number of information bits transmitted in the air interface, 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.

It should be understood that 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.

It should be noted that in LTE, 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.

Exemplarily, 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. For the LTE V2X mode 3 mode, the UE reports the destination ID information in the BSR to indicate which frequency V2X SL resource is requested. Among them, 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).

It should be understood that, within the UE, 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.

In the prior art, a V2X service type corresponds to a destination ID, and the UE reports the correspondence between the destination ID and the frequency point to the base station. Subsequently, the BSR carries the indication information of the destination ID (destination index) to indicate which V2X SL frequency resource is requested. For multicast services, such as Vehicle platooning services, according to the existing technology, there will be a destination ID corresponding to it.

In the NR technology, it is explicitly proposed to support the multicast service. Exemplarily, 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. However, if 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.

In view of this, this application proposes a transmission method and communication device. In 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.

The embodiments of the present application will be described in detail below in conjunction with specific examples. It should be noted that this is only to help those skilled in the art to better understand the embodiments of the present application, and does not limit the scope of the embodiments of the present application.

It should be understood that in the embodiments of the present application, “first”, “second”, etc. are only used to refer to different objects, and do not mean that there are other restrictions on the referred objects.

FIG. 3 is a schematic flowchart of a transmission method according to an embodiment of the present application. Among them, the transmission method of FIG. 3 can be applied to the network architecture of FIG. 1. Among them, the transmission method shown in FIG. 3 can be applied to the multicast scenario of V2X services. The transmission method in FIG. 3 includes:

S210. 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.

It should be understood that in the embodiments of the present application, the first terminal device reporting information to the network device may be the first terminal device sending information to the network device. In the description of the transmission method in the embodiments of the present application, "report" and " "Send" can be used universally.

For example, 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.

Optionally, 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.

For example, at least one identification information may be a group identification.

Optionally, 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.

S220. 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.

That is, 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.

It should be understood that, in the embodiment of the present application, 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.

For example, it may be that 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.

It should be understood that in the embodiment of the present 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, 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.

In the embodiment of the present 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.

Exemplarily, in Mode 3 mode of LTE (that is, Mode 1 mode in NR), 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. When a terminal device in a terminal device group needs to send data, 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.

Exemplarily, in Mode 4 mode of LTE (that is, Mode 2 mode in NR), 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. 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.

Exemplarily, 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. In this case, the configuration resource indicates a specific time-frequency resource location After the base station is configured or activated, 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.

Optionally, 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.

For example, in the embodiment of the present application, it is assumed that 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. Or, 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. Or, at least one configuration resource is a resource configured for each terminal device in the group.

Optionally, 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 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.

For example, in one example, 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. When 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.

It should be noted that 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 There are two types, 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.

It should be noted that in the embodiment of the present application, 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. Or, 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.

Optionally, in the embodiment of the present application, 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 .

Optionally, 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.

It should be understood that in the embodiments of the present application, 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.

For example, 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.

It should be noted that the group identifier may be a unique group identifier under different destination identifiers, or may be the same under different destination identifiers.

For example, it may be that 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.

For example, it may be that 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.

It should be understood that when the corresponding group identifiers under different destination identifiers may be the same, the first terminal device needs to report the destination identifier to which the group identifier belongs to the network device.

Optionally, 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.

Optionally, 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, and the group identification indication information is used to index The group identifier in the list of the first destination identifier.

For example, 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. Correspondingly, the carrying group index indicates the index of the group ID list corresponding to the destination ID. Through destination index and group index, the unique group ID can be determined when the corresponding group IDs under different destination IDs are the same.

In the embodiment of the present application, the first data may include at least one group identification information. Specific implementation methods include but are not limited to the following methods:

Manner 1: The media access control MAC protocol data unit of the first data may include the information of the at least one group identifier.

For example, as shown in FIG. 4, the group ID may be filled in the DST field of the MAC PDU of the first data.

For example, as shown in FIG. 5, it may be that the group ID is added after the DST field of the MAC PDU of the first data.

Manner 2: 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.

Manner 3: 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.

In the embodiments of the present application, 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.

Optionally, 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.

For example, in the embodiment of the present application, 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, and the BSR may include an indication of the first At least one group index information of the group to which the terminal device belongs. After receiving the BSR reported by the first terminal device, 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.

It should be noted that 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.

In the embodiment of the present application, 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.

It should be noted that in the LTE technology, the V2X service only supports the broadcast service. However, it is clearly proposed in the new radio (NR) technology to support 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. In the transmission method of the embodiment of the present application, 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.

For example, FIG. 6 is a schematic flowchart of a transmission method according to an embodiment of the present application. Among them, the method of FIG. 6 can be applied to the network architecture of FIG. 1. Among them, 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:

S310. 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.

In the embodiment of the present application, 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.

S320. 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.

Optionally, the first data further includes second indication information, and the second indication information indicates that the first data is data of a multicast service.

For example, in the embodiment of the present application, 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.

For example, in the embodiment of the present application, 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.

Optionally, 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.

For example, in the embodiment of the present application, 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.

Optionally, the method further includes:

For example, 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. Correspondingly, the carrying group index indicates the index of the group ID list corresponding to the destination ID. Through destination index and group index, the unique group ID can be determined when the corresponding group IDs under different destination IDs are the same.

Manner 3: 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.

For example, 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.

Optionally, 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.

For example, in the embodiment of the present application, 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. After receiving the BSR reported by the first terminal device, 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 it may not indicate, and the UE determines which terminal group data is sent using the V2X SL resources.

Optionally, in this embodiment, each group may have a corresponding destination identifier. In this case, for multicast services, the destination identifier no longer indicates the service type, but may be a group identifier.

In the embodiment of the present application, 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.

Considering a more general scenario, under 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 , There is an identifier to indicate the target UE. All the forms of the identification can be the destination identification. In this case, 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. Optionally, if different propagation types have been distinguished in form, for example, for broadcast services, 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. It should be understood that the technical solutions of the multicast service transmission method in the foregoing embodiments may be adopted in the following embodiments. For example, 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. For example, when the propagation type is multicast, 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 .

For example, FIG. 7 is a schematic flowchart of a transmission method according to an embodiment of the present application. Among them, the method of FIG. 7 can be applied to the network architecture of FIG. 1. Among them, 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:

S410. 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.

S420. The first terminal device reports the first correspondence to the network device.

In the embodiment of the present application, 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.

Optionally, 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.

For example, the first terminal device may report the destination identifier through RRC signaling to indicate the propagation type corresponding to the destination identifier.

In one example, for the multicast service, 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 above is an example, and this application does not limit it.

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.

For example, when reporting the BSR to the network device, 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. It should be noted that 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.

It should be noted that the description of the example in FIG. 7 is only to help those skilled in the art to understand the embodiments of the present application, but not to limit the embodiments of the application to the specific scenarios of the illustrated examples. Those skilled in the art can obviously make various equivalent modifications or changes based on the example given in FIG. 7, and such modifications and changes also fall within the scope of the embodiments of the present application.

Through the embodiment of the present application, 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.

The possible implementation of the network device to determine the propagation type will be described in detail below with reference to FIGS. 8 and 9. With reference to the foregoing embodiments, or as an independent implementation, FIG. 8 is a schematic flowchart of a transmission method according to an embodiment of the present application. Among them, the method of FIG. 8 can be applied to the network architecture of FIG. 1. Among them, 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.

It should be noted that the transmission method shown in FIG. 8 can be applied to the process of terminal device dynamic request scheduling.

Step 401: The network device sends a broadcast message to the first terminal device.

Exemplarily, 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. Exemplarily, the service may be represented by a destination ID.

For example, if the service is a broadcast type, 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.

Optionally, 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.

In a possible implementation manner, 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.

Optionally, when the service is a unicast service or a multicast service, 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.

In a possible implementation manner, 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.

Optionally, 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.

Optionally, for unicast services or multicast services, each destination identifier may correspond to a resource pool configuration; or, different resource pool configurations may be performed for different propagation types.

Exemplarily, 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).

For example, 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.

For example, for the destination identifier in Mode 1 or the logical channel corresponding to the destination identifier, when data needs to be transmitted on the side link, 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.

Optionally, in step 402, 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. In step 404, 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.

In a feasible implementation manner, according to the received BSR, 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.

Exemplarily, after the network device receives the BSR, it 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.

With reference to the foregoing embodiments, or as an independent implementation, FIG. 9 is a schematic flowchart of a transmission method according to an embodiment of the present application. Among them, the method of FIG. 9 can be applied to the network architecture of FIG. 1. Among them, 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.

It should be noted that the transmission method shown in FIG. 9 can be applied to the process of semi-persistent scheduling (SPS) configuration / configured grant of terminal equipment.

Step 501: The network device may send a broadcast message to the first terminal device.

Step 502: The first terminal device may send sidelink terminal device information (sidelink UE information) to the network device.

For example, if the service is a broadcast service, 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.

For different propagation types, there may be a conflict in the assignment of destination identifiers, that is, the same destination identifier may correspond to different propagation types.

In view of this situation, the sidelink terminal device information can be reported as two items, so as to distinguish different propagation types corresponding to the same destination identifier. E.g:

-DST ID # 1, unicast;

-DST ID # 1, broadcast;

Step 503: The first terminal device may send UE assistance information (UE Assistance Information) to the network device. 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.

If there is no conflict, that is, 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. Correspondingly, the network device can configure SPS / configured grant resources for the purpose identifier.

Optionally, SPS / configured grant resources can correspond to different propagation types.

If there is a conflict situation, that is, the same destination identifier may 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.

Exemplarily, 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.

Exemplarily, 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.

It should be noted that the foregoing description of examples is only to help those skilled in the art to understand the embodiments of the present application, but not to limit the embodiments of the application to the specific scenarios of the illustrated examples. Those skilled in the art can obviously make various equivalent modifications or changes based on the examples given in the above embodiments, and such modifications and changes also fall within the scope of the embodiments of the present application. In addition, the names of each message / information are only examples, and each message / information may adopt other names as long as the functions it implements are the same. It should be understood that the size of the sequence numbers of the above processes does not mean that the execution order is sequential. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. It does not mean that every step is necessary, the execution order and necessity of the steps depend on the functions and internal logic to be executed.

The transmission method according to the embodiment of the present application is described in detail above. In this application, 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. It should be understood that the first terminal device and the network device in the embodiments of the present application 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 involved in the present application will be described in detail below with reference to FIGS. 10 to 13.

10 is a schematic block diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 10, the communication device 500 may include a sending unit 510 and a receiving unit 520.

In a possible design, 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.

Optionally, 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.

Optionally, 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.

Optionally, 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 receiving unit 520 is further configured to:

Receiving a request message sent by a third terminal device, where 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, and the group is dedicated Resources include group-specific semi-static SPS resources or configuration guarantee resources.

Optionally, 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.

Optionally, the sending unit 510 is also used to:

Reporting a buffer status report BSR to the network 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; 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.

Optionally, the sending unit 510 is also used to:

Report a group identification list to the network device, and the at least one index information is used to indicate a group identification in the group identification list.

Optionally, 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.

Optionally, the receiving unit 520 is also used to:

Receiving control information sent by the network device, the control information 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.

Optionally, 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.

Optionally, the first data is data scrambled according to a first identification, the first identification is the at least one identification information, or the first identification is an identification corresponding to the at least one identification information .

It should be noted that 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.

In a possible design, 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.

Optionally, 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.

Optionally, the sending unit 510 is also used to:

Optionally, 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.

Optionally, 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.

In a possible design, 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.

Optionally, the sending unit 510 is specifically configured to:

Report 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 includes multicast services, unicast services, or broadcast services Any of them.

Optionally, 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.

With reference to the foregoing embodiments, or as an independent implementation, optionally, the sending unit 510 is specifically configured to:

Sending sidelink terminal device information to the network device, where the sidelink terminal device information includes the first correspondence.

Optionally, the sending unit 510 is also used to:

Send 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 Target business.

Optionally, the sending unit 510 is also used to:

Send auxiliary information to the network device, where the auxiliary information is used to indicate a business model, and the business model includes any one or more of data size, period, priority, and reliability.

It should be noted that 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.

It should be understood that the communication device 500 according to an embodiment of the present application 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.

It should also be understood that each unit / module in the communication device 500 may be implemented in the form of software and / or hardware, which is not specifically limited. In other words, 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.

In the embodiment of the present application, the communication device in FIG. 10 may also be a chip or a chip system, for example, a system on chip (SoC). Correspondingly, the receiving unit and the sending unit may be the transceiver circuit of the chip, which is not limited herein.

11 is a schematic block diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 11, the communication device 600 may include a sending unit 610 and a receiving unit 620.

In a possible design, 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 Correspondingly, the at least one configuration resource is used by the at least one terminal device group to transmit data of the V2X side link.

Optionally, the receiving unit 620 is also used to:

Receiving a buffer status report BSR reported 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 to which the first terminal device belongs A terminal device group.

Optionally, the receiving unit 620 is also used to:

Receiving a group identification list reported by the first terminal device, the at least one group index information is used to indicate a group identification in the group identification list.

Optionally, the receiving unit 620 is also used to:

Receiving a list of first destination identifiers reported by the first terminal device, where 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 .

Optionally, the sending unit 610 is also used to:

Sending control information to the first terminal device, where 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, and 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.

In a possible design, 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.

Optionally, the receiving unit 620 is also used to:

Optionally, 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.

It should be noted that 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.

In a possible design, 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.

Optionally, the receiving unit 620 is specifically configured to:

Receiving a list of second destination identifiers reported by the first terminal device, where 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.

Optionally, the receiving unit 620 is specifically configured to:

Receiving a buffer status report BSR reported by the first terminal device, where 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.

With reference to the foregoing embodiment, or as an independent implementation manner, optionally, the receiving unit 620 is specifically configured to:

Receiving side link terminal device information sent by the first terminal device, where the side link terminal device information includes the first correspondence.

Optionally, the receiving unit 620 is also used to:

Receiving 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 second destination identifier Target business in the list.

Optionally, the 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.

Optionally, the receiving unit 620 is also used to:

Receiving 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.

Optionally, the 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.

It should be understood that the communication device 600 according to an embodiment of the present application 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.

It should also be understood that each unit / module in the communication device 600 may be implemented in the form of software and / or hardware, which is not specifically limited. In other words, 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.

In the embodiment of the present application, the communication device in FIG. 11 may also be a chip or a chip system, for example, a system on chip (SoC). Correspondingly, the receiving unit and the sending unit may be the transceiver circuit of the chip, which is not limited herein.

12 is a schematic structural diagram of a communication device 800 provided by an embodiment of the present application. 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.

As shown, the first terminal device 800 includes a processor 810 and a transceiver 820. Optionally, the first terminal device 800 further includes a memory 830. Among them, 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. Optionally, 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. In specific implementation, 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.

It should be understood that 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. For details, please refer to the description in the above method embodiments. In order to avoid repetition, the detailed description is appropriately omitted here.

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. For details, please refer to the description in the foregoing method embodiment, and no more details are provided here.

Optionally, 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.

In addition, in order to make the function of the first terminal device more perfect, 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.

It should be noted that 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.

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.

As shown, 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. The 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. Optionally, 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.

Optionally, 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. For example, the BBU (processing unit) 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.

In an example, 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.

It should be understood that 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. For details, please refer to the description in the above method embodiments. In order to avoid repetition, the detailed description is appropriately omitted here.

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. For details, please refer to the description in the foregoing method embodiment, and no more details are provided here.

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.

It should be understood that the above processing device may be a chip. For example, 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.

In the implementation process, 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.

It should be noted that the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, 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 . 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.

It can be understood that 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. Among them, 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. By way of example but not limitation, many forms of RAM are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous RAM), SDRAM), double data rate synchronous dynamic random access memory (double data SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (synchlink DRAM, SLDRAM) ) And direct memory bus random access memory (direct RAMbus RAM, DR RAM). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to these and any other suitable types of memories.

According to the method provided in the embodiments of the present application, 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.

According to the method provided in the embodiments of the present application, 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.

According to the method provided in the embodiments of the present application, the present application further provides a system, which includes the foregoing one or more terminal devices and one or more network devices.

In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. 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. 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.

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. There may be one or more processors.

In this application, "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. For example, 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.

Persons of ordinary skill in the art may realize that the method steps and units described in the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the hardware and software For interchangeability, the steps and composition of each embodiment have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application of the technical solution and design constraints. A person of ordinary skill in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

The terms "component", "module", "system", etc. used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, 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. By way of illustration, both 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. In addition, 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.

Those of ordinary skill in the art may realize that the various illustrative logical blocks and steps described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware achieve. Whether these functions are executed in hardware or software depends on the specific application of the technical solution and design constraints. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application. Those skilled in the art can clearly understand that for the convenience and conciseness of the description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a division of logical functions. In actual implementation, 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. In addition, 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.

In addition, 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.

In the above embodiments, the functions of each functional unit can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. 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.

If 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. Based on such an understanding, 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 .

The above is only the specific implementation of this application, but the scope of protection of this application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. It should be covered by the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A transmission method, characterized in that it includes:

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 The configuration resource is used for the at least one terminal device group to transmit data of the Internet of Vehicles V2X side link.
The transmission method according to claim 1, wherein 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 transmission method according to claim 2, wherein 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 timing of the services within the group Extension 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 the terminal device group All terminal devices.
The transmission method according to any one of claims 1 to 3, wherein the at least one configuration resource is at least one resource pool, or the at least one configuration resource is corresponding to the at least one terminal device group Group-specific resources, the group-specific resources include group-specific semi-static scheduling SPS resources or configuration assurance resources, or the at least one configuration resource is a resource corresponding to each terminal device in at least one terminal device group.
The transmission method according to claim 3 or 4, wherein 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 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 configuration assurance resources.
The transmission method according to any one of claims 1 to 5, wherein 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 APP layer of.
The transmission method according to any one of claims 2 to 6, wherein the method further comprises:

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 the first terminal The terminal equipment group to which the equipment 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.
The transmission method according to claim 7, wherein the method further comprises:

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 a group identification in the group identification list.
The transmission method according to claim 8, wherein the method further comprises:

The first terminal device sends a list of first destination identifiers to the network device, the first destination identifier is used to indicate a type of V2X service, and the first destination identifier list includes each destination identifier and at least one group Correspondence of identification.
The transmission method according to any one of claims 7 to 9, wherein the BSR includes destination identification indication information and group identification indication information, and the destination identification indication information is used to index the first destination identification The destination identifier in the list of, the group identifier indication information is used to index the group identifier in the list of the first destination identifier.
The transmission method according to any one of claims 7 to 10, wherein the method further comprises:

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 transmission method according to any one of claims 7 to 11, wherein the medium access control MAC protocol data unit of the first data includes the at least one identification information, or, the The medium access control MAC protocol data unit includes the at least one identification information and the identification information of the multicast service.
The transmission method according to any one of claims 7 to 11, wherein the first data is data scrambled according to a first identification, and the first identification is the at least one identification information, or, The first identification is an identification corresponding to the at least one identification information.
The transmission method according to any one of claims 1 to 13, wherein the method further comprises:

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 transmission method according to any one of claims 7 to 14, wherein the BSR further includes information of a propagation type of a destination identifier, and the propagation type is a multicast service.
A transmission method, characterized in that it includes:

The network device receives group information of at least one terminal device group to which the first terminal device belongs and 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, and each configuration resource in the at least one configuration resource corresponds to 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 Internet of Vehicles V2X side link.
The transmission method according to claim 16, wherein 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 transmission method according to claim 17, wherein 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 timing of the services within the group Extension 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 the terminal device group All terminal devices.
The transmission method according to any one of claims 16 to 18, wherein the at least one configuration resource is at least one resource pool, or the at least one configuration resource is corresponding to the at least one terminal device group Group-specific resources, the group-specific resources include group-specific semi-static scheduling SPS resources or configuration assurance resources, or the at least one configuration resource is a resource corresponding to each terminal device in at least one terminal device group.
The transmission method according to any one of claims 16 to 19, wherein 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 APP layer of.
The transmission method according to any one of claims 17 to 20, wherein the method further comprises:

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 first The terminal device group to which the terminal device belongs.
The transmission method according to claim 21, wherein the method further comprises:

The network device receives a group identification list sent by the first terminal device, and the at least one group index information is used to indicate a group identification in the group identification list.
The transmission method according to claim 22, wherein the method further comprises:

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 type of V2X service, and the list of first destination identifiers includes each destination identifier and at least one Correspondence of group identification.
The transmission method according to claim 23, wherein 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 transmission method according to any one of claims 17 to 24, wherein the method further comprises:

The network device sends control information to the first terminal 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, and the resource Belong to the at least one configuration resource.
The transmission method according to any one of claims 16 to 25, wherein the method further comprises:

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 transmission method according to any one of claims 21 to 26, wherein the BSR further includes propagation type information of the destination identifier, and the propagation type is a multicast service.
A transmission method, characterized in that it 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 a 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 that the first terminal device belongs A group of terminal devices.
The transmission method according to claim 28, wherein 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 transmission method according to claim 28 or 29, wherein the method further comprises:

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 a group identification in the group identification list.
The transmission method according to claim 30, wherein the method further comprises:

The first terminal device sends a list of first destination identifiers to the network device, the first destination identifier is used to indicate a type of V2X service, and the first destination identifier list includes each destination identifier and at least one group Correspondence of identification.
The transmission method according to claim 31, wherein 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 transmission method according to any one of claims 28 to 32, wherein the method further comprises:

The first terminal device receives control information sent by the network device, the control information includes the at least one piece of identification information, and the control information indicates a resource for transmitting side link data of a V2X service.
The transmission method according to any one of claims 28 to 33, wherein the medium access control MAC protocol data unit of the first data includes information of at least one group identifier, or, the The media access control MAC protocol data unit includes information of at least one group identifier and multicast service identifier.
The transmission method according to any one of claims 28 to 33, wherein the first data is data scrambled according to a first identifier, and the first identifier is at least one group identifier, or, the The first identification is an identification corresponding to at least one group identification.
A transmission method, characterized in that it 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 to which the first terminal device belongs One terminal equipment 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 transmission method according to claim 36, wherein the method further comprises:

The network device receives a group identification list sent by the first terminal device, and the at least one group index information is used to indicate a group identification in the group identification list.
The transmission method according to claim 36 or 37, characterized in that the method further comprises:

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 type of V2X service, and the list of first destination identifiers includes each destination identifier and at least one Correspondence of group identification.
The transmission method according to claim 38, wherein 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 transmission method according to any one of claims 36 to 39, wherein the method further comprises:

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, characterized in that it 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 sends the first correspondence to the network device.
The transmission method according to claim 41, wherein sending the first correspondence to the network device by the first terminal 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 transmission method according to claim 41, wherein sending the first correspondence to the network device by the first terminal device includes:

The first terminal device sends a first buffer status report BSR to the network device, where the first BSR includes the destination identifier and information about the propagation type corresponding to the destination identifier.
The transmission method according to claim 41 or 42, wherein sending the first correspondence to the network device by the first terminal device includes:

The first terminal device sends side link terminal device information to the network device, and the side link terminal device information includes the first correspondence.
The transmission method according to claim 44, wherein the method further comprises:

The first terminal device sends a second buffer status report BSR to the network device, where the second BSR includes the index of the destination identifier and the cache size corresponding to the index of the destination identifier, and the index of the destination identifier It is used to indicate the target service in the list of the second destination identifier, and the list of the second destination identifier includes the correspondence between each destination identifier and the propagation type.
The transmission method according to claim 44, wherein the method further comprises:

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 any of data size, period, priority, and reliability corresponding to the service Several items.
A transmission method, characterized in that it includes:

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 a propagation type corresponding to at least one destination identifier according to the first correspondence.
The transmission method according to claim 47, wherein the network device receiving the first correspondence sent by the first terminal device comprises:

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 transmission method according to claim 47, wherein the network device receiving the first correspondence sent by the first terminal device comprises:

The network device receives a first buffer status report BSR sent by the first terminal device, where the first BSR includes the destination identifier and information about the propagation type corresponding to the destination identifier.
The transmission method according to claim 47 or 48, wherein 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 transmission method according to claim 50, wherein the method further comprises:

The network device receives a second buffer status report BSR sent by the first terminal device, where the second BSR includes the index of the destination identifier and the cache size corresponding to the index of the destination identifier, and the The index is used to indicate the target service in the list of second destination identifiers, where the list of second destination identifiers includes the correspondence between each destination identifier and the propagation type.
The transmission method according to claim 51, wherein the method further comprises:

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 of the destination identifier.
The transmission method according to claim 50, wherein the method further comprises:

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 of data size, period, priority, and reliability corresponding to the service or Any number of items.
The transmission method according to claim 53, wherein the method further comprises:

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, characterized in that it includes:

A sending unit, configured to send group information of at least one terminal device group to which the communication device belongs to a network device;

A receiving unit, configured to receive at least one configuration resource sent by the network device, 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 configuration resource The resources are used by the at least one terminal device group to transmit data of the Internet of Vehicles V2X sidelink.
The communication device according to claim 55, wherein 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 communication device belongs.
The communication device according to claim 56, wherein 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 timing of the services within the group Extension requirements, reliability requirements for services within the group, distance span requirements for services within the group, data size for services within the group, period of services within the group, the number / index of the communication equipment within the group, group member identification, first Any one or several items in the 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 of the terminal device groups Terminal Equipment.
The communication device according to any one of claims 55 to 57, wherein the at least one configuration resource is at least one resource pool, or the at least one configuration resource is corresponding to the at least one terminal device group Group-specific resources, the group-specific resources include group-specific semi-static scheduling SPS resources or configuration assurance resources, or the at least one configuration resource is a resource corresponding to each terminal device in at least one terminal device group.
The communication device according to claim 57 or 58, wherein when the communication 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 receiving unit is also used to:

Receiving a request message sent by a third terminal device, where the request message is used to request a resource in the group dedicated resource, the communication device and the third terminal device belong to the same terminal device group, and the group dedicated resource includes Group dedicated semi-static SPS resources or configuration guarantee resources.
The communication device according to any one of claims 55 to 59, wherein the at least one terminal group is determined for the first terminal device, or the at least one terminal group is determined for an application APP layer of.
The communication device according to any one of claims 56 to 60, wherein the sending unit is further configured to:

Sending a buffer status report BSR to the network 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 group to which the communication device belongs;

The sending unit is also used to:

Sending first data to a 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 communication device according to claim 61, wherein the sending unit is further configured to:

Sending a group identification list to the network device, the at least one group index information is used to indicate a group identification in the group identification list.
The communication device according to claim 62, wherein the sending unit is further configured to:

Sending a list of first destination identifiers to the network device, where the first destination identifier is used to indicate the type of V2X service, and the first destination identifier list includes a correspondence between each destination identifier and at least one group identifier.
The communication device according to any one of claims 61 to 63, wherein the BSR includes destination identification indication information and group identification indication information, and the destination identification indication information is used to index the first destination identification The destination identifier in the list of, the group identifier indication information is used to index the group identifier in the list of the first destination identifier.
The communication device according to any one of claims 61 to 64, wherein the receiving unit is further configured to:

Receiving control information sent by the network device, the control information 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 communication device according to any one of claims 61 to 65, wherein the medium access control MAC protocol data unit of the first data includes the at least one piece of identification information, or, the The medium access control MAC protocol data unit includes the at least one identification information and the identification information of the multicast service.
The communication device according to any one of claims 61 to 66, wherein the first data is data scrambled according to a first identification, and the first identification is the at least one identification information, or, The first identification is an identification corresponding to the at least one identification information.
The communication device according to any one of claims 55 to 67, wherein the sending unit is further configured to:

Sending 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 communication device according to any one of claims 61 to 68, wherein the BSR further includes information of a propagation type of a destination identifier, and the propagation type is a multicast service.
A communication device, characterized in that it includes:

A receiving unit, configured to receive group information of at least one terminal device group to which the first terminal device belongs that is sent by the first terminal device;

A sending unit, configured to send at least one configuration resource to the first terminal device according to the group information, and each configuration resource in the at least one configuration resource corresponds to 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 Internet of Vehicles V2X side link.
The communication device according to claim 70, wherein 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 communication device according to claim 71, wherein 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 timing of the services within the group Extension 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 the terminal device group All terminal devices.
The communication device according to any one of claims 70 to 72, wherein the at least one configuration resource is at least one resource pool, or the at least one configuration resource is corresponding to the at least one terminal device group Group-specific resources, the group-specific resources include group-specific semi-static scheduling SPS resources or configuration assurance resources, or the at least one configuration resource is a resource corresponding to each terminal device in at least one terminal device group.
The communication device according to any one of claims 70 to 73, wherein the at least one terminal group is determined for the first terminal device, or the at least one terminal group is determined for an application APP layer of.
The communication device according to any one of claims 71 to 74, wherein the receiving unit is further configured to:

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 first The terminal device group to which the terminal device belongs.
The communication device according to claim 75, wherein the receiving unit is further configured to:

Receiving a group identification list sent by the first terminal device, the at least one group index information is used to indicate a group identification in the group identification list.
The communication device according to claim 76, wherein the receiving unit is further configured to:

Receiving a list of first destination identifiers sent by the first terminal device, where the first destination identifier is used to indicate a type of V2X service, and the list of first destination identifiers includes a correspondence between each destination identifier and at least one group identifier relationship.
The communication device according to claim 77, wherein 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 communication device according to any one of claims 71 to 78, wherein the sending unit is further configured to:

Sending control information to the first terminal device, where 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, and the resource belongs to the at least one A configuration resource.
The communication device according to any one of claims 70 to 79, wherein the sending unit is further configured to:

Sending 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 communication device according to any one of claims 75 to 80, wherein the BSR further includes information of a propagation type of a destination identifier, and the propagation type is a multicast service.
A communication device, characterized in that it includes:

A sending unit, configured to send a buffer status report BSR to the network 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 which one the first terminal device belongs to Terminal equipment group;

The sending unit is further configured to send first data to a 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 A terminal device group to which the device belongs.
The communication device according to claim 82, wherein 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 communication device according to claim 82 or 83, wherein the sending unit is further configured to:

Sending a group identification list to the network device, the at least one group index information is used to indicate a group identification in the group identification list.
The communication device according to claim 84, wherein the sending unit is further configured to:

Sending a list of first destination identifiers to the network device, where the first destination identifier is used to indicate the type of V2X service, and the first destination identifier list includes a correspondence between each destination identifier and at least one group identifier.
The communication device according to claim 85, wherein 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 communication device according to any one of claims 82 to 86, wherein the communication device further includes a receiving unit, the receiving unit is configured to:

Receiving control information sent by the network device, the control information including the at least one identification information, and the control information indicating a resource for transmitting side link data of a V2X service.
The communication device according to any one of claims 82 to 87, wherein the media access control MAC protocol data unit of the first data includes information of at least one group identifier, or, the The media access control MAC protocol data unit includes information of at least one group identifier and multicast service identifier.
The communication device according to any one of claims 82 to 87, wherein the first data is data scrambled according to a first identifier, and the first identifier is at least one group identifier, or, the The first identification is an identification corresponding to at least one group identification.
A communication device, characterized in that it includes:

A receiving unit, configured to receive a buffer status report BSR sent by a 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 first terminal A terminal device group to which the device belongs;

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 group index information.
The communication device according to claim 90, wherein the receiving unit is further configured to:

Receiving a group identification list sent by the first terminal device, the at least one group index information is used to indicate a group identification in the group identification list.
The communication device according to claim 90 or 91, wherein the receiving unit is further configured to:

Receiving a list of first destination identifiers sent by the first terminal device, where the first destination identifier is used to indicate a type of V2X service, and the list of first destination identifiers includes a correspondence between each destination identifier and at least one group identifier relationship.
The communication device according to claim 92, wherein 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 communication device according to any one of claims 90 to 93, characterized in that the communication device further comprises a sending unit, and the sending unit is configured to:

Sending 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 used for transmitting side link data of the V2X service.
A communication device, characterized in that it includes:

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 is configured to send the first correspondence to the network device.
The communication device according to claim 95, wherein the sending unit is specifically configured to:

Sending 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 communication device according to claim 95, wherein the sending unit is specifically configured to:

The network device sends a first buffer status report BSR, where the first BSR includes the destination identifier and information about the propagation type corresponding to the destination identifier.
The communication device according to claim 95 or 96, wherein the sending unit is specifically configured to:

Sending side link terminal device information to the network device, where the side link terminal device information includes the first correspondence.
The communication device according to claim 98, wherein the sending unit is further configured to:

Sending a second buffer status report BSR to the network device, where the second BSR includes the index of the destination identifier and the cache size corresponding to the index of the destination identifier, and the index of the destination identifier is used to indicate the second destination For the target service in the list of identifiers, the list of second destination identifiers includes the correspondence between each destination identifier and the propagation type.
The communication device according to claim 98, wherein the sending unit is further configured to:

Send auxiliary information to the network device, where the auxiliary information is used to indicate a business model, and the business model includes any one or several items of data size, period, priority, and reliability corresponding to the business.
A communication device, characterized in that it includes:

The receiving unit is configured to receive a first correspondence sent 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. anyone;

The processing unit is configured to determine a propagation type corresponding to at least one destination identifier according to the first correspondence.
The communication device according to claim 101, wherein the receiving unit is specifically configured to:

Receiving 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 communication device according to claim 101, wherein the receiving unit is specifically configured to:

Receiving a first buffer status report BSR sent by the first terminal device, where the first BSR includes the destination identifier and information about the propagation type corresponding to the destination identifier.
The communication device according to claim 101 or 102, wherein the receiving unit is specifically configured to:

Receiving side link terminal device information sent by the first terminal device, where the side link terminal device information includes the first correspondence.
The communication device according to claim 104, wherein the receiving unit is further configured to:

Receiving a second buffer status report BSR sent by the first terminal device, where the second 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 A target service in a list of second destination identifiers, the list of second destination identifiers includes a correspondence between each destination identifier and the propagation type.
The communication device according to claim 105, wherein the processing unit is further configured 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 communication device according to claim 104, wherein the receiving unit is further configured to:

Receiving 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 several items of data size, period, priority, and reliability corresponding to the service.
The communication device according to claim 107, wherein the processing unit is further configured to:

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, characterized in that the communication device includes: at least one processor and a communication interface, the communication interface is used for information interaction between the communication device and other communication devices, when program instructions are processed in the at least one When executed in the device, the communication device is caused to implement the transmission method according to any one of claims 1 to 15, 28 to 35, or 41 to 46.
A communication device, characterized in that the communication device includes: at least one processor and a communication interface, the communication interface is used for information interaction between the communication device and other communication devices, when program instructions are processed in the at least one When executed in the device, the communication device is caused to implement the transmission method according to any one of claims 16 to 27, 36 to 40, or 47 to 54.
A computer-readable medium, characterized in that it includes a computer program which, when run on a computer, causes the computer to execute an institute according to any one of claims 1 to 15, 28 to 35, or 41 to 46 The transmission method mentioned.
A computer-readable medium, characterized in that it includes a computer program which, when run on a computer, causes the computer to execute an institution according to any one of claims 16 to 27, 36 to 40, or 47 to 54 The transmission method mentioned.