CN113382388B

CN113382388B - Transmission method and communication device

Info

Publication number: CN113382388B
Application number: CN202110695037.0A
Authority: CN
Inventors: 彭文杰; 范强; 王君; 戴明增
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-11-02
Filing date: 2019-04-30
Publication date: 2023-08-04
Anticipated expiration: 2039-04-30
Also published as: WO2020088441A1; CN113382388A

Abstract

The application provides a transmission method and communication equipment, wherein the transmission method comprises the following steps: the first terminal equipment determines a first corresponding relation, wherein the first corresponding relation is used for indicating a propagation type corresponding to the destination identifier, and the propagation type comprises any one of multicast service, unicast service or broadcast service; the first terminal device sends the first correspondence to a network device. According to the method and the device for reporting the target identifier, the network equipment can acquire the propagation type corresponding to the reported target identifier, so that different V2X side uplink resources can be configured for different types of services.

Description

Transmission method and communication device

The present application claims priority from chinese patent office, application No. 201811301515.X, chinese patent application entitled "transmission method and communication device", filed on 11/02 of 2018, the entire contents of which are incorporated herein by reference.

Technical Field

The present application relates to the field of communications, and more particularly, to a transmission method and a communication apparatus.

Background

The Internet of vehicles (vehicle to everything, V2X) is considered as one of the fields with the most definite industrial potential and market demand in the Internet of things system, has the characteristics of wide application space, large industrial potential and strong social benefit, and has important significance in promoting the innovation development of the automobile and information communication industry, constructing new modes and new business states of the automobile and traffic service, promoting the innovation and application of automatic driving technology and improving the traffic efficiency and safety level.

In long term evolution (Long Term Evolution, LTE) technology, V2X only supports broadcast services, i.e., a Control Function (CF) node configures a relationship among a V2X service type, a destination identifier (destination ID), and a frequency point for a UE, and the UE reports a correspondence between the destination identifier and the frequency point, so as to allow different destination identifiers to correspond to the same frequency point. The network configures a Side Link (SL) resource pool of the V2X service according to the reported information of the UE, for example, one frequency point configures a SL resource pool of the V2X service correspondingly.

However, in the New Radio (NR) technology, it is explicitly proposed to support a multicast service, where the multicast service allows information sharing between a group of UEs, that is, one UE may belong to different groups of the same V2X multicast service, and if a network device continues to use resources of a terminal device group configured according to a frequency point, a SL resource pool of the same V2X service may include terminal devices of different terminal groups, which reduces reliability of communication of the terminal device group and reduces communication efficiency.

Disclosure of Invention

The application provides a transmission method and communication equipment, which can ensure the reliability of communication of a terminal equipment group and improve the communication efficiency.

In a first aspect, a transmission method is provided, including:

the method comprises the steps that a first terminal device sends group information of at least one terminal device group to which the first terminal device belongs to a 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 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 uplink.

In the embodiment of the 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 equipment can perform V2X side uplink resource allocation according to the group information, thereby ensuring the reliability of communication among the terminal equipment groups and improving the communication efficiency.

In other words, in the embodiment of the present application, the first terminal device transmits 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 information indicating 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 is used for transmitting data of a V2X side uplink by the at least one terminal device group, wherein the specific form for carrying the information indicating the at least one configuration resource is not limited in any way.

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

With reference to the first aspect, in certain implementations of the first aspect, the set of information includes at least one identification information, each of the at least one identification information being used to indicate a group of terminal devices to which the first terminal device belongs.

With reference to the first aspect, in certain implementations of the first aspect, the group information further includes any one or any several of a number of group members, a rate requirement of an intra-group service, a life cycle of the intra-group service, a priority of the intra-group service, a latency requirement of the intra-group service, a reliability requirement of the intra-group service, a distance span requirement of the intra-group service, a data size of the intra-group service, a period of the intra-group service, a number/index of the first terminal device in the group, a group member identification, a 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 terminal devices in the terminal device group.

It should be noted that, a master terminal device may exist in each terminal device group, where the master terminal device may be a leader or an owner 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 the joining of a new terminal device in the terminal device group, or may manage the exiting of a terminal device in the terminal device group.

In this embodiment of the present application, the group information reported by the first terminal device to the network device may include information of terminal devices in the group, for example, information of the number of members, a service rate requirement, a priority, etc., and according to the group information, the network device may determine a size of a resource configured for the group of terminal devices.

With reference to the first aspect, in some implementations of the first aspect, the at least one configured resource is at least one resource pool, or the at least one configured resource is a group-specific resource corresponding to the at least one terminal device group, where the group-specific resource includes a group-specific semi-persistent scheduling SPS resource or a configuration guarantee resource, or the at least one configured resource is a resource corresponding to each terminal device in the at least one terminal device group.

In this embodiment of the present application, the at least one configuration resource may be a resource pool corresponding to different terminal equipment groups, may be a group-specific resource of different terminal equipment groups, or may be a fixed configuration resource of each terminal equipment in one terminal equipment 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 the at least one configuration resource may be three resource pools for group1, group2 and group3, respectively. Alternatively, the first one of the at least one configuration resource may be a group-specific resource for group1, meaning that the first configuration resource is only available for use by terminal devices in group1, or the at least one configuration resource is a resource configured for each terminal device in group.

With reference to the first aspect, in certain implementation manners of the first aspect, when the first terminal device is the master terminal device and the at least one configuration resource is a group dedicated resource corresponding to the at least one terminal device group, the method further includes:

the first terminal equipment receives a request message sent by the third terminal equipment, wherein the request message is used for requesting resources in the group of special resources, the first terminal equipment and the third terminal equipment belong to the same terminal equipment group, and the group of special resources comprises group special semi-static SPS resources or configuration guarantee resources.

In the embodiment of the application, the intra-group terminal equipment can request resources to the main terminal equipment in the terminal equipment group, and the BSR request can be unnecessary to be sent to the network equipment, so that the communication efficiency is improved.

With reference to the first aspect, in certain 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 an application APP layer.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes:

the first terminal equipment sends a Buffer Status Report (BSR) to the network equipment, wherein the BSR comprises at least one group index information, and each group index information in the at least one group index information is used for indicating one terminal equipment group to which the first terminal equipment belongs;

the first terminal device sends first data to the second terminal device, wherein the first data comprises the at least one identification information and second indication information, and the second indication information is used for indicating that the first data is data of 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 a 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, so that communications of multiple terminal device groups under one V2X service can be implemented.

the first terminal device sends a group identification list to the network device, and the at least one group index information is used for indicating group identifications in the group identification list.

the first terminal device sends a list of first destination identifiers to the network device, wherein the first destination identifiers are used for indicating the V2X service types, and the list of first destination identifiers comprises a corresponding relation between each destination identifier and at least one group identifier.

With reference to the first aspect, in certain implementations of the first aspect, the BSR includes destination identifier indication information and group identifier indication information, where the destination identifier indication information is used to index destination identifiers in the list of the first destination identifiers, and the group identifier indication information is used to index group identifiers in the list of the first destination identifiers.

the first terminal device receives control information sent by the network device, wherein the control information comprises at least one piece of identification information, each piece of identification information in the at least one piece of identification information is used for indicating one terminal device group to which the first terminal device belongs, and the control information indicates resources for transmitting side uplink data of V2X service, and the resources belong to the at least one configuration resource.

With reference to the first aspect, in certain 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 includes the at least one identification information and identification information of the multicast service.

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 to add a group ID after the DST field of the MAC PDU of the first data.

For example, it may be to add a group ID and identification information of a multicast service after the DST field of the MAC PDU of the first data.

With reference to the first aspect, in certain implementation manners of the first aspect, the first data is data scrambled according to a first identifier, where the first identifier is at least one identifier information, or where the first identifier is an identifier corresponding to the at least one identifier information.

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

With reference to the first aspect, in certain implementation manners of the first aspect, the method further includes:

the first terminal device sends third indication information to the network device, wherein the third indication information is used for indicating that the propagation type corresponding to the destination identifier is multicast service.

the BSR also comprises propagation type information of the destination identifier, and the propagation type is multicast service.

In a second aspect, a transmission method is provided, including:

the network equipment receives group information of at least one terminal equipment group which is transmitted by first terminal equipment and to which the first terminal equipment belongs;

the network device sends at least one configuration resource to the first terminal device according to the set of information, 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 the V2X side uplink.

With reference to the second aspect, in certain implementations of the second aspect, the group information includes at least one identification information, each of the at least one identification information being used to indicate a group of terminal devices 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 any one or any several of a number of group members, a rate requirement of a group service, a life cycle of a group service, a priority of a group service, a delay requirement of a group service, a reliability requirement of a group service, a distance span requirement of a group service, a data size of a group service, a period of a group service, a number/index of the first terminal device in a group, a group member identification, a 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 terminal devices in the terminal device group.

In this embodiment of the present application, the group information sent by the first terminal device to the network device may include information of terminal devices in the group, for example, information of the number of members, a service rate requirement, a priority, etc., and according to the group information, the network device may determine a size of a resource configured for the group of terminal devices.

With reference to the second aspect, in some implementations of the second aspect, the at least one configured resource is at least one resource pool, or the at least one configured resource is a group-specific resource corresponding to the at least one terminal device group, where the group-specific resource includes a group-specific semi-persistent scheduling SPS resource or a configuration guarantee resource, or the at least one configured resource is a resource corresponding to each terminal device in the 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 an application APP layer.

With reference to the second aspect, in certain implementations 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 a terminal device group to which the first terminal device belongs.

the network device receives a group identifier list sent by the first terminal device, and the at least one group index information is used for indicating group identifiers in the group identifier list.

the network device receives a list of first destination identifiers sent by the first terminal device, wherein the first destination identifiers are used for indicating the V2X service types, and the list of the first destination identifiers comprises a corresponding relation between each destination identifier and at least one group identifier.

With reference to the second aspect, in certain implementations of the second aspect, the BSR includes destination identifier indication information and group identifier indication information, where the destination identifier indication information is used to index destination identifiers in the list of the first destination identifiers, and the group identifier indication information is used to index group identifiers in the list of the first destination identifiers.

the network device sends control information to the first terminal device, where the control information includes the at least one identification information, each of the at least one identification information 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 uplink data of V2X service, where the resource belongs to the at least one configuration resource.

and the network equipment receives third indication information sent by the first terminal equipment, wherein the third indication information is used for indicating that the propagation type corresponding to the destination identifier is multicast service.

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

In a third aspect, a transmission method is provided, including:

the method comprises the steps that a first terminal device sends a Buffer Status Report (BSR) to a network device, wherein the BSR comprises at least one group index message, and each group index message in the at least one group index message is used for indicating one terminal device group to which the first terminal device belongs;

the first terminal device sends first data to the second terminal device, wherein the first data comprises at least one piece of identification information, and each piece of identification information in the at least one piece of identification information is used for indicating one terminal device group to which the first terminal device belongs.

In the embodiment of the 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 device groups according to the group index information in the BSR, so as to enable communication of multiple terminal device groups under a V2X service, ensure reliability of group communication, and improve communication efficiency.

With reference to the third aspect, in some implementations of the third aspect, the first data further includes second indication information, where 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 certain implementations of the third aspect, the method further includes:

With reference to the third aspect, in some implementations of the third aspect, the BSR includes destination identifier indication information and group identifier indication information, where the destination identifier indication information is used to index destination identifiers in the list of the first destination identifiers, and the group identifier indication information is used to index group identifiers in the list of the first destination identifiers.

the first terminal device receives control information sent by the network device, wherein the control information comprises the at least one identification information, and the control information indicates resources for transmitting side uplink data of the V2X service.

With reference to the third aspect, in some implementations of the third aspect, the at least one identification information is included in a medium access control MAC protocol data unit of the first data, or the at least one identification information and the identification information of the multicast service are included in a medium access control MAC protocol data unit of the first data.

With reference to the third aspect, in some implementations of the third aspect, the first data is data scrambled according to a first identifier, where the first identifier is at least one identifier information, or where the first identifier is an identifier corresponding to the at least one identifier information.

In a fourth aspect, a transmission method is provided, including:

the network equipment receives a Buffer Status Report (BSR) sent by the first terminal equipment, wherein the BSR comprises at least one group index information, and each group index information in the at least one group index information is used for indicating one terminal equipment group to which the first terminal equipment belongs;

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 certain implementations of the fourth aspect, the method further includes:

With reference to the fourth aspect, in some implementations of the fourth aspect, the BSR includes destination identifier indication information and group identifier indication information, where the destination identifier indication information is used to index destination identifiers in the list of the first destination identifiers, and the group identifier indication information is used to index group identifiers in the list of the first destination identifiers.

the network device transmits control information to the first terminal device, the control information including at least one identification information, the control information indicating resources for transmitting side uplink data of the V2X service.

In a fifth aspect, a transmission method is provided, including:

the first terminal equipment determines a first corresponding relation, wherein the first corresponding relation is used for indicating a propagation type corresponding to the destination identifier, and the propagation type comprises any one of multicast service, unicast service or broadcast service;

the first terminal device sends the first correspondence to a network device.

With reference to the fifth aspect, in some implementations of the fifth aspect, the sending, by the first terminal device, the first correspondence to the network device includes:

the first terminal device sends a list of second destination identifications to the network device, wherein the second destination identification list comprises a corresponding relation between each destination identification and the propagation type.

the first terminal equipment sends a Buffer Status Report (BSR) to the network equipment, wherein the BSR comprises a destination identifier and information of the propagation type corresponding to the destination identifier.

With reference to any one of the foregoing aspects or any implementation manner of any one of the foregoing aspects, or as a separate implementation manner, in a possible implementation manner provided by the present application, the sending, by the first terminal device, the first correspondence relationship to the network device may include:

The first terminal device sends side-link terminal device information to the network device, wherein the side-link terminal device information comprises the first corresponding relation.

In one possible implementation, the method may further include:

the first terminal equipment sends a Buffer Status Report (BSR) to the network equipment, wherein the BSR comprises an index of a destination identifier and a buffer size corresponding to the index of the destination identifier, and the index of the destination identifier is used for indicating a target service in a list of the second destination identifier.

In one possible implementation, the method may further include:

the first terminal device sends auxiliary information to the network device, wherein the auxiliary information is used for indicating a service model, and the service model comprises any one or any several of data size, period, priority and reliability corresponding to the service.

In a sixth aspect, a transmission method is provided, including:

the network equipment receives a first corresponding relation sent by first terminal equipment, wherein the first corresponding relation is used for indicating a propagation type corresponding to a destination identifier, and the propagation type comprises any one of multicast service, unicast service or broadcast service;

the network device determines the propagation type corresponding to at least one destination identifier according to the first corresponding relation.

With reference to the sixth aspect, in some implementations of the sixth aspect, the network device receives a first correspondence sent by a first terminal device, including:

the network equipment receives a list of second destination identifiers sent by the first terminal equipment, wherein the second destination identifier list comprises a corresponding relation between each destination identifier and the propagation type.

the network equipment receives a Buffer Status Report (BSR) sent by the first terminal equipment, wherein the BSR comprises a destination identifier and information of the propagation type corresponding to the destination identifier.

With reference to any one of the foregoing aspects or any one implementation manner of the foregoing aspect, or as an independent implementation manner, in a possible implementation manner provided by the present application, the receiving, by the network device, a first correspondence relationship sent by a first terminal device includes:

the network device receives side-link terminal device information sent by the first terminal device, where the side-link terminal device information includes the first correspondence relationship.

In one possible implementation, the method may further include:

The network device receives a Buffer Status Report (BSR) sent by the first terminal device, wherein the BSR comprises an index of a destination identifier and a buffer size corresponding to the index of the destination identifier, and the index of the destination identifier is used for indicating a target service in a list of the second destination identifier.

In one possible implementation, the method may further include:

the network device determines a side uplink resource scheduled for the first terminal device according to the propagation type of the service corresponding to the index of the destination identifier.

In one possible implementation, the method may further include:

the network device receives auxiliary information sent by the first terminal device, wherein the auxiliary information is used for indicating a service model, and the service model comprises any one or any more of data size, period, priority and reliability corresponding to a service.

In one possible implementation, the method may further include:

the network device determines side uplink resources configured for the first terminal device based on the propagation type and the traffic model.

In a seventh aspect, a communication device is provided that includes a processor. The processor is coupled to the memory and operable to execute instructions in the memory to implement the method of any of the aspects described above and any of the possible implementations of any of the aspects. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, and the processor is coupled to the communication interface.

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

In another implementation, 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.

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

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

In another implementation, 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 will be appreciated that the communication device may also be the second terminal device or the third terminal device in any of the foregoing implementations, so as to implement the steps or functions of the second terminal device or the third terminal device in any of the foregoing implementations.

In another implementation, the communication device may also be a network device in any of the foregoing implementations, so as to implement a step or a function of the network device in any of the foregoing implementations.

The communication device may include a receiving unit and a transmitting unit, for example. For example, the transmitting unit may be a transmitter and the receiving unit may be a receiver; the communication device may further comprise a processing unit, which may be a processor; the communication device may further comprise a storage unit, which may be a memory; the storage unit is configured to store instructions, and the processing unit executes the instructions stored in the storage unit, so that the communication device performs the transmission method in any one of the above aspects and alternative embodiments thereof. When the chip 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, pins or circuits, etc.; the processing unit executes instructions stored by a storage unit, which may be a storage unit (e.g., a register, a cache, etc.) within the chip, or may be a storage unit (e.g., a read-only memory, a random access memory, etc.) within the communication device that is external to the chip, to cause the communication device to perform the transmission method in any one of the above aspects and alternative embodiments thereof.

In an eighth aspect, there is provided a processor comprising: input circuit, output circuit and processing circuit. The processing circuit is configured to receive signals via the input circuit and to transmit signals via the output circuit, such that the processor performs any one of the aspects and any one of the possible implementations of any one of the aspects.

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 trigger, various logic circuits, and the like. The input signal received by the input circuit may be received and input by, for example and without limitation, a receiver, the output signal may be output by, for example and without limitation, a transmitter and transmitted by a transmitter, and the input circuit and the output circuit may be the same circuit, which functions as the input circuit and the output circuit, respectively, at different times. The embodiments of the present application do not limit the specific implementation manner of the processor and the various circuits.

In a ninth aspect, a processing apparatus is provided that includes a processor and a memory. The processor is configured to read instructions stored in the memory and is configured to receive signals via the receiver and to transmit signals via the transmitter to perform the method of any one of the aspects and any one of the possible implementations of the first aspect.

Optionally, the processor is one or more, and the memory is one or more.

Alternatively, the memory may be integrated with the processor or the memory may be separate from the processor.

In a specific implementation process, the memory may be a non-transient (non-transitory) memory, for example, a Read Only Memory (ROM), which may be integrated on the same chip as the processor, or may be separately disposed on different chips.

It should be appreciated that the related data interaction process, for example, transmitting group information, may be a process of outputting group information from a processor, and receiving group information may be a process of receiving group information by a processor. Specifically, the data output by the processing may be output to the transmitter, and the input data received by the processor may be from the receiver. Wherein the transmitter and receiver may be collectively referred to as a transceiver.

A processing device in the ninth aspect may be a chip, and the processor may be implemented by hardware or software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor, implemented by reading software code stored in a memory, which may be integrated in the processor, or may reside outside the processor, and exist separately.

In a tenth aspect, there is provided a computer program product comprising: a computer program (which may also be referred to as code, or instructions) which, when executed, causes a computer to perform the transmission method of any one of the above aspects and any one of the possible implementations of any one of the aspects.

In an eleventh aspect, a computer readable medium is provided, which stores a computer program (which may also be referred to as code, or instructions) which, when run on a computer, causes the computer to perform the transmission method in any one of the above aspects and any one of the possible implementations of any one of the above aspects.

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

Drawings

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

Fig. 2 is a schematic diagram of a V2X service in the prior art.

Fig. 3 is a schematic diagram of a transmission method according to an embodiment of the present application.

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

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

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

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

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

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

Fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present application.

Fig. 11 is another structural schematic diagram of a communication device provided according to an embodiment of the present application.

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

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

Detailed Description

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

The technical solution of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (global system for mobile communications, GSM), code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunication system, UMTS), worldwide interoperability for 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 embodiments of the present application may refer to a user device, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user apparatus. The terminal device may also be a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile network (public land mobile network, PLMN), etc., as the embodiments of the application are not limited in this respect.

The network device in this embodiment of the present application may be a device for communicating with a terminal device, where the network device may be a base station (base transceiver station, BTS) in a global system for mobile communications (global system for mobile communications, GSM) or code division multiple access (code division multiple access, CDMA), a base station (NodeB, NB) in a wideband code division multiple access (wideband code division multiple access, WCDMA) system, an evolved NodeB (eNB or eNodeB) in an LTE system, a wireless controller in a cloud wireless access network (cloud radio access network, CRAN) scenario, or the network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, etc., which is not limited in this application.

In the embodiment of the application, the terminal device or the network device includes a hardware layer, an operating system layer running above the hardware layer, and an application layer running above the operating system layer. The hardware layer includes hardware such as a central processing unit (central processing unit, CPU), a memory management unit (memory management unit, MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processes through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address book, word processing software, instant messaging software and the like. Further, the embodiment of the present application is not particularly limited to the specific structure of the execution body of the method provided in the embodiment of the present application, as long as the communication can be performed by the method provided in the embodiment of the present application by running the program recorded with the code of the method provided in the embodiment of the present application, and for example, the execution body of the method provided in the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or the network device that can call the program and execute the program.

Furthermore, various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein encompasses a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include, but are not limited to, magnetic storage devices (e.g., hard disk, floppy disk, or magnetic strips, etc.), optical disks (e.g., compact disk, CD, digital versatile disk, digital versatile disc, DVD, etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory, EPROM), cards, sticks, or key drives, etc. Additionally, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

Fig. 1 is an exemplary diagram of a system architecture to which embodiments of the present application are applied. As shown in fig. 1, the communication system includes: control Function (CF) nodes, V2X devices (e.g., which may include multiple V2X devices in group 1 and group 2), and network devices. And communication is realized among the V2X devices through a PC5 interface. The communication link between V2X devices is defined as Sidelink (SL). It should be appreciated 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 arrow flow direction in fig. 1 is merely described by way of example of the V2X device, and is not limited to the embodiments of the present application, and in fact, the communication between the V2X devices may be bidirectional, and the V2X device may also be in uplink communication with the network device, which is not specifically limited.

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

For example, V2X may specifically further include three application requirements, such as V2V (internet of vehicles), V2P (car to pedestrian communication), V2I/N (car to infrastructure communication/network, base station communication), as shown in fig. 2. V2V refers to LTE-based inter-vehicle communication; V2P refers to LTE-based vehicle-to-person (including pedestrians, cyclists, drivers, or passengers) communication; V2I refers to communication of LTE-based vehicles with roadside devices (RSUs), and yet another V2N may be included in V2I, V2N refers to communication of LTE-based vehicles with base stations/networks. As shown in fig. 2.

Roadside devices (RSUs) may include two types: the terminal type RSU is in a non-moving state because the terminal type RSU is distributed at the roadside, and mobility does not need to be considered; the base station type RSU may provide timing synchronization and resource scheduling for vehicles with which it communicates.

In LTE V2X, a user plane communication protocol stack of the PC5 interface, for example, takes communication between UE a and UE B as an example, and the communication between UE a and UE B is performed through the PC5 interface. The user plane protocol stacks of the PC5 interface and the LTE Uu interface may be the same, and include a packet data convergence protocol (packet data convergence protocol, PDCP) layer, a radio link control (radio link control, RLC) layer, a medium access control (medium access control, MAC) layer, and a physical layer (PHY) layer.

For ease of understanding, the relevant terms referred to herein are first described below.

1. Vehicle-to-all (vehicle to everything, V2X) traffic

Currently V2X services are a type of communication services using vehicle-to-vehicle (vehicle to vehicle, V2V) applications, which may include vehicle-to-road infrastructure (vehicle to infrastructure, V2I), vehicle-to-person (vehicle to pedestrian, V2P), vehicle-to-network (vehicle to network, V2N), vehicle-to-vehicle (vehicle to vehicle, V2V), etc. services via 3GPP transmissions.

Wherein, the V2I service means that one participant is UE and the other participant is the infrastructure.

V2N service refers to one participant being a UE and the other being a serving entity, e.g. may be communication via a network device, i.e. a base station.

For example, the vehicles can broadcast the information such as the own speed, the running direction, the specific position, whether the emergency brake is stepped on or not to the surrounding vehicles through V2V communication, and the drivers of the surrounding vehicles can better sense the traffic condition outside the sight distance by acquiring the information, so that the dangerous condition is predicted in advance and avoided. For V2I communication, besides the interaction of the above security information, a roadside infrastructure (RSU), for example, may provide various service information and access to a data network for a vehicle, so that functions such as no-parking charging and in-vehicle entertainment greatly improve traffic intellectualization.

2. Centralized scheduling transmission Mode (also referred to as Mode 3)

The long term evolution (long term evolution, LTE) system is a currently mainstream wireless communication technology, which sets relevant standards for V2X service characteristics and transmission requirements, and supports V2X communication based on LTE. In V2X communication based on the LTE system, side-link communication is a main communication method, and in side-link communication, data transmission between terminal devices may not be transferred through a network device. The side-link communication is largely divided into two transmission modes, i.e., a centralized scheduling transmission Mode (also referred to as Mode 3) and a distributed transmission Mode (also referred to as Mode 4).

Centralized scheduling transmission Mode (also referred to as Mode 3): in this mode, before the terminal device sends data each time, it is required to apply resources to the network device, and send V2X service data according to the resources allocated by the network device. Because the resources of the terminal equipment are uniformly distributed by the network equipment, the condition that the same resources are distributed by the adjacent terminal equipment cannot occur, and therefore, the centralized transmission mode can ensure better transmission reliability. However, since the interactive signaling is required between the terminal device and the network device every time, a transmission delay for transmitting data using the centralized scheduling transmission mode is relatively long compared to the distributed transmission mode.

In NR, V2X in this type of Mode may also be referred to as Mode1.

3. Distributed transmission Mode (also referred to as Mode 4)

Distributed transmission Mode (also referred to as Mode 4): in the scenario with network coverage, when the network device configures the resource pool terminal device for the terminal device to send V2X data through SIB message or Dedicated radio resource control (Dedicated RRC) signaling, the data may be sent through at least part of the resources acquired from the master-slave resource pool by random selection, based on a listening reservation mechanism or based on a partial listening reservation mechanism. In the scene without network coverage, the terminal equipment transmits data from at least part of resources acquired from a resource pool in the master-slave preconfiguration information. The preconfiguration information may be a resource pool configured inside the terminal when the terminal leaves the factory, or may be information preconfigured by the network device and stored inside the terminal. Since the terminal device autonomously selects the resource, a case may occur in which different terminal devices select the same resource to transmit data, and thus transmission collision may occur.

Note that V2X of this type of Mode in NR may also be referred to as Mode2.

4. Buffer status report (buffer status report BSR)

When the UE requests uplink resources from the network device through the SR, it only indicates whether or not it has uplink data to be transmitted, and does not indicate how much uplink data to be transmitted. The UE needs to determine how much data in its uplink buffer needs to be sent by sending a BSR to the network device, so that the network device determines the size of the uplink resource allocated to the UE.

5. Logical channel group (logic channel group LCG)

LCG refers to grouping one or more logical channels into a group. To reduce the number of information bits transmitted in the air interface, a BSR value is bound for each logical channel group. The BSR carries 64 index values, 0-63, each corresponding to a different range of byte numbers.

It should be understood that the BSR value is not the amount of data to be transmitted by the UE, nor the number of bytes of data to be transmitted by a certain logical channel, but the amount of data to be transmitted by a corresponding certain logical channel group. Each logical channel group has a BSR value bound to it, and when a certain logical channel group of the UE has data to transmit, the BSR value of the logical channel group can be reported.

It should be noted that, in LTE, V2X only supports broadcast service, that is, V2X service data sent by a transmitting UE on a certain frequency point can be received by all surrounding UEs interested in the frequency point. The frequency point has a corresponding relation with the V2X service, and through the corresponding relation, the UE can determine where the service interested by the UE can be received.

For example, a Control Function (CF) node may configure a relationship between a destination ID (destination ID) corresponding to a V2X service type and a frequency point for a UE, where the UE may report the relationship between the destination ID and the frequency point to the base station, and then, for an LTE V2X mode 3 mode, the UE may report destination ID information in the BSR to indicate which V2X SL resource of the frequency point is requested. The V2X traffic type may be represented by a service provider identification (provider service identifier, PSID) or an intelligent transportation system application identifier (intelligent transport systems application identifier, ITS-AID), among others.

It should be understood that, inside the UE, there is a set of independent logical channel groups (logical channel group, LCGs) for each destination ID, and there are at most 4 LCGs for example, the sender 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. Indication information (destination index) of the destination ID is carried in the BSR to indicate which V2X SL frequency point to request the resource. For multicast services, such as Vehicle platooning services, there is a destination ID corresponding to this according to the prior art.

In NR technology, it is explicitly proposed to support multicast services, and exemplary specific multicast services may include a car queue (Vehicle platooning) service and an extended sensor (extended sensor) service. Multicast services allow information sharing among a group of UEs, e.g., distance, speed, sensor parameters, etc. from each other may be shared within the group. The data of such services have certain requirements for reliability and need to be kept secret and therefore cannot be transmitted in the form of a broadcast. However, if the UE is allowed to belong to different groups of the same V2X multicast service, that is, LCG/LCH under a destination ID may be shared by different groups, at this time, different groups of data exist in one LCG/LCH, that is, different groups of data may be sent out as a packet. The data in the group may be received by other group members, so that the transmission efficiency is reduced and the information is unsafe.

In view of this, the present application proposes a transmission method and a communication device, in V2X group communication, that is, when one UE is allowed to belong to different terminal groups of the same V2X multicast service, by adding group identification information, it is avoided that a logical channel is multiplexed by different terminal groups, thereby ensuring the reliability requirement of data of the V2X multicast service, and thus improving transmission efficiency.

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 not to 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 merely for referring to different objects, and do not represent other limitations on the referred objects.

Fig. 3 is a schematic flow chart of a transmission method according to an embodiment of the present application. The transmission method of fig. 3 may be applied to the network architecture of fig. 1. The transmission method shown in fig. 3 may be applied to a multicast scenario of a V2X service, where the transmission method in fig. 3 includes:

s210, the first terminal equipment reports group information of at least one terminal equipment group to which the first terminal equipment belongs to the network equipment.

It should be understood that, in embodiments of the present application, reporting information to the network device by the first terminal device may be that the first terminal device sends information to the network device, and in descriptions of the transmission method in embodiments of the present application, "reporting" and "sending" may be used in common.

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 (radio resource control, RRC) signaling.

Alternatively, the group information may include at least one identification information, each of the at least one identification information indicating one terminal device group to which the first terminal device belongs.

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

Optionally, the group information further includes any one or any several of a number of group members, a rate requirement of a service in the group, a life cycle of the service in the group, a priority of the service in the group, a time delay requirement of the service in the group, a reliability requirement of the service in the group, a distance span requirement of the service in the group, a data size of the service in the group, a period of the service in the group, a number/index of the first terminal device in the group, a group member identification, and first indication information, where the first indication information is used for identifying/indicating a master terminal device in the at least one terminal device group, and the master terminal device is used for managing all terminal devices in the terminal device group.

S220, the first terminal equipment receives at least one configuration resource sent by the network equipment, each configuration resource in the at least one configuration resource corresponds to one terminal equipment group in the at least one terminal equipment group, and the at least one configuration resource is used for the at least one terminal equipment group to transmit data of a V2X side uplink.

That is, the first terminal device receives information indicating at least one configuration resource sent by the network device, where 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 V2X side uplink.

It should be understood that, in the embodiment of the present application, the configuration resource is a side uplink resource of a V2X service configured by the network device for the terminal device group, and the resource may also use other names, as long as the implemented functions are the same, which is not limited in any way in the present application.

For example, the first terminal device may receive control information DCI sent by the network device, indicating at least one configuration resource, or may also be other information sent by the network device to the first terminal device, indicating at least one configuration resource. The present application is not limited to a 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 uplink based on each terminal device group to which the first terminal device belongs, that is, the network device configures one resource of the V2X side uplink for each terminal device group to which the first terminal device belongs; the network device may also configure the V2X side uplink 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 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 transmit the data of the V2X side uplink when the data needs to be transmitted.

For example, in the Mode3 Mode of LTE (i.e. Mode1 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, an indicated allowed resource range, and when there is a terminal device in one terminal device group that needs to send data, the terminal device still needs to send a request to the network device, and the network device schedules, for the terminal device, an adapted resource that is sending service data based on the request of the terminal device.

For example, in the Mode4 Mode of LTE (i.e. Mode2 Mode in NR), the network device may perform resource configuration 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 terminal device group to transmit V2X data. Any one of the terminal devices in the terminal device group where the first terminal device is located may send data through a random selection, based on a listening reservation mechanism or based on a partial listening reservation mechanism from at least some of the resources acquired in the master-slave resource pool.

In an example, the first terminal device receives at least one configuration resource sent by the network device, where the at least one configuration resource may be an SPS resource or a configuration guaranteed resource type, and the configuration resource indicates a specific time-frequency resource location, and 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 to perform data transmission when the data transmission is required. It should be understood that the foregoing is illustrative, and the embodiments of the present application are not limited thereto.

Optionally, the at least one configured resource is at least one resource pool, or the at least one configured resource is a group-specific resource corresponding to the at least one terminal equipment group, where the group-specific resource includes a group-specific semi-persistent scheduling SPS resource or a configuration guarantee resource, or the at least one configured resource is a resource corresponding to each terminal equipment in the at least one terminal equipment 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 the at least one configuration resource may be three resource pools for group1, group2 and group3, respectively. Alternatively, the first one of the at least one configuration resource may be a group-specific resource for group1, meaning that the first configuration resource is available only to terminal devices in group 1. Alternatively, the 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 dedicated resources, the first terminal device and the third terminal device belong to the same terminal device group, and the group dedicated resources include a group dedicated semi-static SPS resource or a configuration guaranteed (configured grant) resource.

For example, in one example, where the first terminal device belongs to group1 and the first terminal device is a master terminal device in group1, the network device may configure the first terminal device with a group-specific semi-persistent SPS resource or a configuration guaranteed (grant) resource corresponding to group 1. When the third terminal device in group1 needs to send data, the third terminal device requests resources from the first terminal device, i.e. the third terminal device may not need to send BSR requests to the network device any more.

It should be noted that, the group-dedicated resource may be a group-dedicated semi-static SPS resource in the LTE technology, and may be or configure a guaranteed (configured grant) resource in the NR technology, where the configured guaranteed (configured grant) resource includes two types of type1 and type2, and type1 is a grant free type, that is, no additional activation indication is required; type2 is a type corresponding to SPS in LTE, i.e., DCI is required to be activated.

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, where a format of the destination identifier may be adopted when reporting the group identifier, that is, the first terminal device reports the destination identifier, and the value of the destination identifier may be the group identifier. Or, the first terminal device may report a group identifier and a destination identifier, where the destination identifier may be used to indicate a 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 the report form of the group identifier is not specifically limited in this application.

Alternatively, in an embodiment of the present application, the first terminal device may belong to at least one terminal device group, and the at least one terminal device group may be determined by the first terminal device, or the at least one terminal device group may be determined by the application APP layer.

The above flow 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, so as to ensure the reliability of group communication in the scene of the V2X multicast service and improve the utilization rate of the resource.

Optionally, the method further comprises:

The first terminal equipment reports a Buffer Status Report (BSR) to the network equipment, wherein the BSR comprises at least one group index information, and each group index information in the at least one group index information is used for indicating one terminal equipment group to which the first terminal equipment belongs;

the first terminal equipment sends first data to second terminal equipment, wherein the first data comprises at least one piece of identification information and second indication information, and the second indication information is used for indicating that the first data is data of multicast service.

It should be understood that, in the embodiment 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 at least one terminal device group to which the first terminal device belongs.

For example, the first terminal device may report a list of group identifiers to the network device, and a group index may be included in the BSR, where the group index 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 destination identifier 1 corresponds to group1, group2, and group3; destination identifier 2 corresponds to group4 and group5. I.e. the group identity may be a unique group identity under different destination identities.

For example, it may be that destination identifier 1 corresponds to group1, group2, and group3; destination identifier 2 corresponds to group1, group2. I.e. the group identity may be the same under different destination identities.

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

Optionally, the method further comprises:

the first terminal equipment reports a list of first destination identifiers to the network equipment, wherein the first destination identifiers are used for indicating the V2X service types, and the list of the first destination identifiers comprises the corresponding relation between each destination identifier and at least one group identifier.

Optionally, the BSR includes destination identifier indication information and group identifier indication information, where the destination identifier indication information is used to index destination identifiers in the list of the first destination identifiers, and the group identifier indication information is used to index group identifiers in the list of the first destination identifiers.

For example, the first terminal device may report a Destination ID list to the network device, where 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 further carry 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. The unique group identifier can be determined by destination index and group index when the corresponding group identifiers under different destination identifiers are the same.

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

mode one: the medium access control, MAC, protocol data unit of the first data may include information of the at least one group identity.

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, the group ID may be added after the DST field of the MAC PDU of the first data.

Mode two: the medium access control, MAC, protocol data unit of the first data may include information of at least one group identification and an identification of the multicast service.

Mode three: the first data may be data scrambled according to a first identity, which is at least one group identity, or an identity corresponding to at least one group identity.

In an embodiment of the present application, the logical channel of the UE may be maintained independently on a per terminal equipment group basis. I.e. a UE may belong to a plurality of terminal equipment groups, each terminal equipment group having an independent set of logical channels, thereby ensuring the data reliability of the terminal equipment group communication.

Optionally, the method further comprises:

the first terminal device receives control information sent by the network device, wherein the control information comprises at least one piece of identification information, each piece of identification information in the at least one piece of identification information is used for indicating one terminal device group to which the first terminal device belongs, the control information indicates resources for transmitting side uplink data of V2X service, and the resources belong to the at least one configuration resource.

For example, in an embodiment of the present application, the 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 at least one group index information indicating the group to which the first terminal device belongs may be included in the BSR. After receiving the BSR reported by the first terminal device, the network device may indicate the scheduled V2X side uplink resource to the first terminal device through DCI. The network device may or may not indicate the resource scheduled by the terminal group, and the UE may determine which terminal group data to transmit using the V2X SL resource.

Note that, in the embodiment of the present application, the names of the messages are not limited. The names of the messages are merely examples, and the messages may be given other names as long as the functions they implement are the same.

In the embodiment of the present application, the first terminal device may report group information to the network device, where 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 resource allocation of the V2X side uplink according to the group information, thereby ensuring the reliability of communication between terminal device groups and improving the communication efficiency.

It should be noted that, in LTE technology, V2X service only supports broadcast service. However, it is explicitly proposed in the New Radio (NR) technology to support multicast services, where multicast services allow information sharing between a group of UEs, i.e. one UE may belong to different groups of the same V2X multicast service, so that LCG/Logical Channel (LCH) under one destination ID may be shared by UEs of different groups, resulting in reduced reliability of data and reduced transmission efficiency. In the transmission method of the embodiment of the application, the first terminal device can report the information indicating the terminal device group to the network device, so that the communication among a plurality of terminal device groups under one V2X service type can be realized.

For example, fig. 6 is a schematic flow chart diagram of a transmission method according to one embodiment of the present application. The method of fig. 6 may be applied to the network architecture of fig. 1, among other things. The transmission method shown in fig. 6 may be applied to a multicast scenario of a V2X service, where the transmission method in fig. 6 includes:

s310, the first terminal equipment reports a Buffer Status Report (BSR) to the network equipment, wherein the BSR comprises at least one group index information, and each group index information in the at least one group index information is used for indicating one terminal equipment group to which the first terminal equipment belongs.

In the embodiment of the present application, the BSR that the network device receives the report from the first terminal device may include information indicating a group of terminal devices to which the first terminal device belongs, for example, the BSR that the network device receives may include at least one group index.

S320, the first terminal equipment transmits first data to the second terminal equipment, wherein the first data comprises at least one piece of identification information, and each piece of identification information in the at least one piece of identification information is used for indicating one terminal equipment group to which the first terminal equipment belongs.

Optionally, the first data further includes second indication information, where 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 distinguish the first data into multicast data, unicast data or broadcast data according to the data format of the first data after receiving the first data.

For example, in an 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, the unicast data, and the broadcast data may be in a general data format, and the transmission mode of the data may be indicated as multicast, unicast, or broadcast by the indication information.

Optionally, the method further comprises:

the first terminal device reports a group identifier list to the network device, and the at least one group index information is used for indicating group identifiers in the group identifier list.

For example, in the embodiment of the present application, the first terminal device reports a list of group identifiers to the network device, and includes at least one group index information indicating the group identifiers in the BSR, and the network device may determine at least one terminal device group to which the first terminal device belongs according to the list of group identifiers and the at least one group index information.

Optionally, the method further comprises:

For example, the BSR reported by the first terminal device to the network device may also carry destination index to indicate the group ID within the destination ID. Correspondingly, the carrying group index indicates the index of the group ID list corresponding to the destination ID. The unique group identifier can be determined by destination index and group index when the corresponding group identifiers under different destination identifiers are the same.

Mode three: the first data may be data scrambled according to a first identification, the first identification being the at least one group identification, or the first identification being an identification corresponding to the at least one group identification.

For example, the packet indicating that the first data is group communication may be filtered at the physical layer, scrambled and descrambled by using the group-related information, and the ID is used for scrambling when the transmitting end UE in the group transmits the data, and for descrambling when the receiving end UE in the group receives the data. This ID may be the group ID or may be one other ID corresponding to the group ID. The other IDs are assigned to the UE by the network device or derived from the group ID by the UEs within the group.

Optionally, the method further comprises:

the first terminal device receives control information sent by the network device, wherein the control information comprises the at least one identification information, the control information indicates resources for transmitting side uplink data of the V2X service, and the resources belong to the at least one configuration resource.

For example, in an embodiment of the present application, the first terminal device may send a BSR to the network device, and at least one group index information indicating a group to which the first terminal device belongs may be included in the BSR. After receiving the BSR reported by the first terminal device, the network device may indicate the scheduled V2X side uplink resource to the first terminal device through DCI. The network device may or may not indicate the resource scheduled by the terminal group, and the UE may determine which terminal group data to transmit using the V2X SL resource.

Optionally, in this embodiment, each group may have a corresponding destination identifier, where, for multicast service, the destination identifier indicates no service type any more, and may be a group identifier.

In the embodiment of the application, the BSR reported to the network device by the first terminal 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 device groups according to the group index information in the BSR, so as to enable communication of multiple terminal device groups under a V2X service, ensure reliability of group communication, and improve communication efficiency.

Considering a more general scenario, there may be multicast, unicast and broadcast at the same time, with one identity for the broadcast to indicate the traffic type, one identity for the multicast to indicate the group, and one identity for the unicast to indicate the target UE. All the identifiers can be in the form of destination identifiers, and the network device cannot distinguish the propagation types (such as communication types) by simply identifying, namely broadcasting, multicasting and unicasting. Therefore, the network device needs to acquire the propagation type information corresponding to the reported identifier, so as to configure different V2X side uplink resources for the services of different propagation types. Alternatively, if different propagation types have been formally distinguished, for example for broadcast traffic, the identification is a destination identification; aiming at multicast service, the identification is a group identification; for unicast traffic, the identity is the target UE identity, and the network device can distinguish the propagation type by name.

The embodiment of the application also provides a technical scheme that the network equipment can determine the propagation type. It should be understood that in the following embodiments, the technical solutions of the transmission method of the multicast service in the foregoing embodiments may be adopted. For example, the following technical solutions of the embodiments may be adopted first to enable the network device to determine a broadcast service, a multicast service, or a unicast service, and then the technical solutions of the multicast service transmission methods in the foregoing embodiments may be adopted. For example, when the propagation type is in a multicast form, the technical solutions of the foregoing embodiments may be adopted to report group information or the BSR reported by the UE to the network device may include group index information, but the embodiment of the present application is not limited thereto.

For example, fig. 7 is a schematic flow chart diagram of a transmission method according to one embodiment of the present application. The method of fig. 7 may be applied to the network architecture of fig. 1. The transmission method shown in fig. 7 may be applied to a scenario of multicast, broadcast, and unicast of a V2X service, where the transmission method in fig. 7 includes:

s410, the first terminal equipment determines a first corresponding relation, wherein the first corresponding relation is used for indicating a propagation type corresponding to the destination identifier, and the propagation type comprises any one of multicast service, unicast service or broadcast service.

S420, the first terminal equipment reports the first corresponding relation to network equipment.

In the embodiment of the application, the network device may determine the propagation type corresponding to the at least one destination identifier by receiving the first correspondence reported by the first terminal device, so that the network device may determine to configure different V2X side uplink resources for the multicast service, the unicast service, and the broadcast service.

Optionally, the first terminal device reports the first correspondence to a network device, including:

the first terminal device reports a list of second destination identifiers to the network device, wherein the second destination identifier list includes a correspondence between each destination identifier and the propagation type, and the propagation type may include any one of multicast service, 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 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 multicast service. Or the first terminal device reports the group information to the network device, and the propagation type corresponding to the destination identifier can be implicitly indicated as the multicast service through the group information. The foregoing is illustrative, and the present application is not limited in any way.

and the first terminal equipment reports a Buffer Status Report (BSR) to the network equipment, wherein the BSR comprises a destination identifier and information of a propagation type corresponding to the destination identifier.

For example, when the first terminal device reports the BSR to the network device, a type field is added to the BSR to indicate that the reported destination identifier is multicast service, unicast service or broadcast service. Note that, in the embodiment of the present application, the names of the messages are not limited. The names of the messages are merely examples, and the messages may be given other names as long as the functions they implement are the same.

It should be noted that the example description of fig. 7 is merely to aid one skilled in the art in understanding the present embodiments, and is not intended to limit the present embodiments to the specific scenarios illustrated. It will be apparent to those skilled in the art from the example given in fig. 7 that various equivalent modifications or variations can be made, and such modifications and variations are within the scope of the embodiments of the present application.

Through the embodiment of the application, the network equipment can acquire the type information corresponding to the reported ID, so that different V2X side uplink resources are configured for different types of services.

Possible implementations of the network device determination of the propagation type are described in detail below in connection with fig. 8 and 9. In connection with the foregoing embodiments, or as a stand alone implementation, fig. 8 is a schematic flow chart of a transmission method according to an embodiment of the present application. The method of fig. 8 may be applied to the network architecture of fig. 1, among other things. The transmission method shown in fig. 8 may be applied to a scenario of multicast, broadcast, and unicast of the V2X service, where the transmission method shown in fig. 8 includes steps 401 to 406, and the following details of steps 401 to 406 are described in detail respectively.

It should be noted that the transmission method shown in fig. 8 may be applied to a flow of dynamic request scheduling of a terminal device.

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

Illustratively, the broadcast message may include V2X frequency information supported by the cell.

Step 402: the first terminal device sends side-uplink terminal device information (sidelink UE information) to the network device.

The side-uplink terminal device information may include a correspondence between a service of interest to the first terminal device and a frequency, and the service may be represented by a destination ID (destination ID), for example.

For example, if the service is of a broadcast type, the destination identifier may represent a type of propagation of the service; if the service is a unicast service, the destination identifier may represent an identifier allocated by the second terminal device for the unicast connection; if the service is a multicast service, the destination identifier may represent a group identifier.

Optionally, in order to enable the network device to distinguish the propagation types, more flexible resource management is performed, and the propagation types corresponding to the destination identifier, namely broadcast, unicast or multicast, may be indicated while the destination identifier is reported.

In a possible implementation, S420 shown in fig. 7 may be that the first terminal device sends side uplink terminal device information to the network device, where the side uplink terminal device information may include the first correspondence relationship.

Optionally, when the service is a unicast service or a multicast service, a 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 one possible implementation, the propagation type corresponding to the traffic may be indicated implicitly. For example, for a multicast service, information of a group can be carried while the target identifier of the multicast service is reported, for example, information of the number of group members can be carried; similarly, the propagation type of the unicast service or the broadcast service can be indicated in an implicit manner.

Step 403: the network device sends V2X configuration information to the first terminal device. The configuration information may include a resource pool configuration.

Optionally, the resource pool configuration may not distinguish the destination identifiers, that is, the plurality of destination identifiers correspond to the same resource pool configuration; alternatively, a destination identifier may correspond to a resource pool configuration.

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

For example, the configuration information may further include Mode information, wherein the Mode information may include scheduling Mode (NR V2X Mode 1) or information of a Mode (NR V2X Mode 2) of selecting resources.

For example, the pattern information may indicate that one destination identifier corresponds to pattern 1 or pattern 2, or may indicate that one or more pieces of logic information in one destination identifier corresponds to pattern 1 or pattern 2.

Step 404: the first terminal device sends a configuration completion message to the network device.

Step 405: the first terminal device sends a BSR to the network device.

For example, when there is data to be transmitted on the side uplink in the destination identifier in mode1 or in the logical channel corresponding to the destination identifier, the first terminal device may send a BSR to the network device, where the BSR may carry a destination identifier index corresponding to the destination identifier, where the destination identifier index may indicate a location of the destination identifier in the destination identifier list reported by the side uplink terminal device information, and the value of the destination identifier index may start from 0 or 1.

Optionally, in step 402, a list of second destination identifiers may also be sent, where the second destination identifier list includes a correspondence between each destination identifier and a propagation type, and the propagation type may include any one of multicast service, unicast service, or broadcast service. In step 404, the BSR may carry a destination identifier index corresponding to the destination identifier and a buffer size corresponding to the destination identifier index, where the destination identifier index is used to indicate a location of the destination identifier in the list of the second destination identifier.

In a possible implementation manner, according to the received BSR, the network device may determine, according to the destination identifier index included in the BSR, the target service and a propagation type corresponding to the target service in the second destination identifier list, and may schedule, by the network device, a side uplink resource corresponding to the target service based on the propagation type of the target service.

Step 406: the network device sends scheduling information to the first terminal device.

For example, after the network device receives the BSR, the network device can identify one or more frequencies and propagation types corresponding to the destination identifier according to the destination identifier index carried in the BSR and the destination identifier list received through the side uplink terminal device information. And selecting one frequency on the corresponding one or more frequencies, selecting the resources of the corresponding propagation type, and sending the resources to the first terminal equipment.

In connection with the foregoing embodiments, or as a stand alone implementation, fig. 9 is a schematic flow chart of a transmission method according to an embodiment of the present application. The method of fig. 9 may be applied to the network architecture of fig. 1, among other things. The transmission method shown in fig. 9 may be applied to a scenario of multicast, broadcast, and unicast of the V2X service, where the transmission method shown in fig. 9 includes steps 501 to 505, and the following details of steps 501 to 505 are described in detail.

It should be noted that the transmission method shown in fig. 9 may be applied to a procedure of semi-persistent scheduling (SPS) configuration/configuration grant (configured grant) of the terminal device.

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

Step 502: the first terminal device may send side uplink 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 an identifier allocated by the second terminal device for the unicast connection; if the service is a multicast service, the destination identifier may represent a group identifier.

For different propagation types, there may be a conflict problem in destination identifier allocation, i.e. the same destination identifier may appear to correspond to different propagation types.

For this case, the information of the side uplink terminal equipment can be reported as two items, so as to distinguish different propagation types corresponding to the same destination identifier. For example:

-DST ID #1, unicast;

-DST ID #1, broadcast;

step 503: the first terminal device may send UE assistance information to the network device (UE Assistence Information). The auxiliary information is used for indicating a service model, the service model can include information such as data size, period, priority, reliability and the like corresponding to the service, and the auxiliary information can also include a destination identifier and information of the service model corresponding to the destination identifier.

If no conflict exists, namely, the V2X layer can ensure that different propagation types, different unicast connections and different groups are not in conflict with the allocated destination identifier, the network equipment can determine the propagation type corresponding to the destination identifier by combining the information of the side-link terminal equipment after receiving the destination identifier. Accordingly, the network device may configure SPS/configured grant resources for the purpose identification.

Alternatively, SPS/configured grant resources may correspond to different propagation types.

If there is a conflict, 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 by combining the destination identification and the propagation type with the previously received side-link terminal device information.

For example, the network device may schedule the side uplink resources corresponding to the traffic based on the traffic propagation type and traffic model corresponding to the traffic. 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.

For example, the network device may manage different propagation types differently, i.e. different time-frequency resources may be configured for broadcast, multicast, unicast network devices.

It should be noted that the above exemplary descriptions are only intended to assist those skilled in the art in understanding the present embodiments, and are not intended to limit the present embodiments to the specific scenarios illustrated. Various equivalent modifications and changes will be apparent to those skilled in the art from the examples given in the foregoing embodiments, and such modifications and changes also fall within the scope of the embodiments of the present application. In addition, the names of the messages/information are merely examples, and other names may be used for the messages/information, as long as the functions realized are the same. It should be understood that the sequence numbers of the above processes do not mean the order of execution, and the execution order of the processes should be determined by the functions and internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present application. Nor does it imply that every step is necessary, and that the order and necessity of steps is dependent upon the functions and inherent logic to be performed.

The transmission method according to the embodiment of the present application is described in detail above, in this application, the first terminal device reports, to the network device, group information of at least one terminal device group to which the first terminal device belongs, and the network device can improve communication efficiency of the radio access network according to the group information. It should be understood that the first terminal device and the network device in the embodiments of the present application may perform the foregoing methods in the embodiments of the present application, that is, specific working processes of the following various products may refer to corresponding processes in the foregoing method embodiments.

The communication device according to the present application will be described in detail with reference to fig. 10 to 13.

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

In one possible design, the communication device 500 may correspond to the first terminal device in the above method embodiment, for example, may be the first terminal device, or a chip configured in the first terminal device. The communication device 500 is capable of performing the various steps performed by the first terminal device in fig. 3.

And a sending unit 510, configured to report group information of at least one terminal device group to which the first terminal device belongs.

A receiving unit 520, configured to receive at least one configuration resource sent by the network device, where 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 V2X side uplink.

Optionally, the group information includes 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.

Optionally, the group information further includes any one or any several of a number of group members, a rate requirement of a service in the group, a life cycle of the service in the group, a priority of the service in the group, a time delay requirement of the service in the group, a reliability requirement of the service in the group, a distance span requirement of the service in the group, a data size of the service in the group, a period of the service in the group, a number/index of the first terminal device in the group, a group member identification, and first indication information, where 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:

And receiving a request message sent by a third terminal device, wherein the request message is used for requesting resources in the group special resources, the first terminal device and the third terminal device belong to the same terminal device group, and the group special resources comprise group special semi-static SPS resources or configuration guarantee resources.

Optionally, 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.

Optionally, the sending unit 510 is further configured to:

reporting a Buffer Status Report (BSR) to the network device, wherein the BSR comprises at least one group index information, and each group index information in the at least one group index information is used for indicating one terminal device group to which the first terminal device belongs; and sending first data to second terminal equipment, wherein the first data comprises the at least one identification information and second indication information, and the second indication information is used for indicating that the first data is data of multicast service.

Optionally, the sending unit 510 is further configured to:

and reporting a group identification list to the network equipment, wherein the at least one index information is used for indicating the group identification in the group identification list.

Optionally, the sending unit 510 is further configured to:

and reporting a list of first destination identifiers to the network equipment, wherein the first destination identifiers are used for indicating the V2X service types, and the list of the first destination identifiers comprises the corresponding relation between each destination identifier and at least one group identifier.

Optionally, the receiving unit 520 is further configured to:

and receiving control information sent by the network equipment, wherein the control information comprises the at least one identification information, the control information indicates resources for transmitting side uplink data of the V2X service, and the resources belong to the at least one configuration resource.

Optionally, the medium access control MAC protocol data unit of the first data includes at least one identification information, or the medium access control MAC protocol data unit of the first data includes at least one identification information and identification information of a multicast service, where each identification information in the at least one 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 identifier, where the first identifier is the at least one identifier information, or the first identifier is an identifier corresponding to the at least one identifier information.

Note that the transmitting unit and the receiving unit may be the same transmitting unit, and the communication device 500 may include other units in addition to the transmitting unit and the receiving unit, which is not limited in this application.

In one possible design, the communication device 500 may correspond to the first terminal device in the above method embodiment, for example, may be the first terminal device, or a chip configured in the first terminal device. The communication device 500 is capable of performing the various steps performed by the first terminal device in fig. 6.

A sending unit 510, configured 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 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 a terminal device group to which the first terminal device belongs.

Optionally, the first data further includes second indication information, where the second indication information is used to indicate that the first data is data of a multicast service.

Optionally, the sending unit 510 is further configured to:

Optionally, the communication device further includes a receiving unit 520, configured to receive 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 uplink data of the V2X service, where the resource belongs to the at least one configuration resource.

Optionally, the medium access control MAC protocol data unit of the first data includes at least one identification information, or the medium access control MAC protocol data unit of the first data includes at least one identification information and identification information of the multicast service.

In one possible design, the communication device 500 may correspond to the first terminal device in the above method embodiment, for example, may be the first terminal device, or a chip configured in the first terminal device. The communication device 500 is capable of performing the steps performed by the first terminal device in fig. 7, and the communication device 500 may include a transmitting unit 510, a receiving unit 520, and a processing unit.

The processing unit is used for determining a first corresponding relation, wherein the first corresponding relation is used for indicating a propagation type corresponding to the destination identifier, and the propagation type comprises any one of multicast service, unicast service or broadcast service;

And the sending unit 510 is configured to report the first correspondence to a network device.

Optionally, the sending unit 510 is specifically configured to:

and reporting a list of second destination identifiers to the network equipment, wherein the second destination identifier list comprises a corresponding relation between each destination identifier and the propagation type, and the propagation type comprises any one of multicast service, unicast service or broadcast service.

Optionally, the sending unit 510 is specifically configured to:

reporting a Buffer Status Report (BSR) to a network device, wherein the BSR comprises a destination identifier and information of a propagation type corresponding to the destination identifier, and the propagation type comprises any one of multicast service, unicast service or broadcast service.

In combination with the foregoing embodiment, or as a separate implementation, optionally, the sending unit 510 is specifically configured to:

and transmitting side-link terminal equipment information to the network equipment, wherein the side-link terminal equipment information comprises the first corresponding relation.

Optionally, the sending unit 510 is further configured to:

and sending a Buffer Status Report (BSR) to the network equipment, wherein the BSR comprises an index of a destination identifier and a buffer size corresponding to the index of the destination identifier, and the index of the destination identifier is used for indicating a target service in a list of the second destination identifier.

Optionally, the sending unit 510 is further configured to:

and sending auxiliary information to the network equipment, wherein the auxiliary information is used for indicating a service model, and the service model comprises any one or any several 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, so as to implement the steps or functions of the second terminal device or the third terminal device in any of the foregoing implementation manners.

It should be understood that the communication device 500 according to the embodiment of the present application may correspond to the method of the first terminal device in the foregoing method embodiment, and the foregoing and other management operations and/or functions of each unit/module in the communication device 500 are respectively for implementing the corresponding steps of the method of the first terminal device in the foregoing method embodiment, so that the beneficial effects in the foregoing method embodiment may also be implemented, which is not repeated herein for brevity.

It should also be understood that the various units/modules in the communication device 500 may be implemented in software and/or hardware, which are not particularly limited. In other words, the communication device 500 is presented in the form of functional modules. "unit" herein may refer to an application specific integrated circuit ASIC, a circuit, a processor and memory executing one or more software or firmware programs, an integrated logic circuit, and/or other devices that may provide the functionality described above.

The communication device 500 of the above-described aspect may have a function of implementing the corresponding steps of the first terminal device or the second terminal device or the third terminal device in the above-described method; the functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions; for example, the transmitting unit may be replaced by a transmitter, the receiving unit may be replaced by a receiver, and other units, such as a determining unit, etc. may be replaced by a processor, performing the transceiving operations and the associated processing operations in the respective method embodiments, respectively.

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

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

In one possible design, the communication device 600 may correspond to the network device in the above method embodiments, for example, may be a network device, or a chip configured in a network device. The communication device 600 is capable of performing the various steps performed by the network device in fig. 3.

A receiving unit 620, configured to receive group information of at least one terminal device group to which the first terminal device belongs, where the group information is 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, where 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 V2X side uplink.

Optionally, the receiving unit 620 is further configured to:

and receiving a Buffer Status Report (BSR) reported by the first terminal equipment, wherein the BSR comprises at least one group index information, and each group index information in the at least one group index information is used for indicating one terminal equipment group to which the first terminal equipment belongs.

Optionally, the receiving unit 620 is further configured to:

and receiving a group identification list reported by the first terminal equipment, wherein the at least one group index information is used for indicating the group identification in the group identification list.

Optionally, the receiving unit 620 is further configured to:

And receiving a list of first destination identifiers reported by the first terminal equipment, wherein the first destination identifiers are used for indicating the V2X service types, and the list of the first destination identifiers comprises the corresponding relation between each destination identifier and at least one group identifier.

Optionally, the sending unit 610 is further configured to:

and sending control information to the first terminal equipment, wherein the control information comprises at least one identification information, the control information indicates resources for transmitting side uplink data of V2X service, each identification information in the at least one identification information is used for indicating one terminal equipment group to which the first terminal equipment belongs, and the resources belong to the at least one configuration resource.

In one possible design, the communication device 600 may correspond to the network device in the above method embodiments, for example, may be a network device, or a chip configured in a network device. The communication device 600 is capable of performing the various steps performed by the network device in fig. 6. The communication device 600 may include a transmitting unit 610, a receiving unit 620, and a processing unit.

A receiving unit 620, configured to receive a buffer status report BSR reported by a 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 a terminal device group to which the first terminal device belongs;

and the processing unit is used for determining at least one terminal equipment group to which the first terminal equipment belongs according to the at least one identification information.

Optionally, the receiving unit 620 is further configured 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 piece of identification information in the at least one identification information 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 uplink data of the V2X service.

Note that the transmitting unit and the receiving unit may be the same transmitting unit, and the communication device 600 may include other units in addition to the transmitting unit and the receiving unit, which is not limited in this application.

In one possible design, the communication device 600 may correspond to the network device in the above method embodiments, for example, may be a network device, or a chip configured in a network device. The communication device 600 is capable of performing the various steps performed by the network device in fig. 7. The communication device 600 may include a transmitting unit 610, a receiving unit 620, and a processing unit.

A receiving unit 620, configured to receive a first correspondence reported by a first terminal device, where the first correspondence is used to indicate a propagation type corresponding to a destination identifier, and the propagation type includes any one of a multicast service, a unicast service, or a broadcast service;

and the processing unit is used for determining the propagation type corresponding to at least one destination identifier according to the first corresponding relation.

Optionally, the receiving unit 620 is specifically configured to:

and receiving a list of second destination identifiers reported by the first terminal equipment, wherein the second destination identifier list comprises a corresponding relation between each destination identifier and the propagation type, and the propagation type comprises any one of multicast service, unicast service or broadcast service.

Optionally, the receiving unit 620 is specifically configured to:

and receiving a Buffer Status Report (BSR) reported by the first terminal equipment, wherein the BSR comprises a destination identifier and information of a propagation type corresponding to the destination identifier, and the propagation type comprises any one of multicast service, unicast service or broadcast service.

In combination with the foregoing embodiment, or as a separate implementation, optionally, the receiving unit 620 is specifically configured to:

And receiving side-link terminal equipment information sent by the first terminal equipment, wherein the side-link terminal equipment information comprises the first corresponding relation.

Optionally, the receiving unit 620 is further configured to:

and receiving a Buffer Status Report (BSR) sent by the first terminal equipment, wherein the BSR comprises an index of a destination identifier and a buffer size corresponding to the index of the destination identifier, and the index of the destination identifier is used for indicating a target service in a list of the second destination identifier.

Optionally, the processing unit is further configured to:

and determining the side uplink resource scheduled for the first terminal equipment according to the propagation type of the service corresponding to the index of the destination identifier.

Optionally, the receiving unit 620 is further configured to:

and receiving auxiliary information sent by the first terminal equipment, wherein the auxiliary information is used for indicating a service model, and the service model comprises any one or any several of data size, period, priority and reliability.

Optionally, the processing unit is further configured to:

and determining side uplink resources configured for the first terminal equipment according to the propagation type and the service model.

It should be understood that the communication device 600 according to the embodiment of the present application may correspond to the method of the network device in the foregoing method embodiment, and the foregoing and other management operations and/or functions of each unit/module in the communication device 600 are respectively for implementing the corresponding steps of the method of the network device in the foregoing method embodiment, so that the beneficial effects in the foregoing method embodiment may also be implemented, which is not repeated herein for brevity.

It should also be understood that the various units/modules in the communication device 600 may be implemented in software and/or hardware, which are not particularly limited. In other words, the communication device 600 is presented in the form of functional modules. "unit" herein may refer to an application specific integrated circuit ASIC, a circuit, a processor and memory executing one or more software or firmware programs, an integrated logic circuit, and/or other devices that may provide the functionality described above.

The communication device 600 of the above-described scheme has a function of implementing the corresponding steps performed by the network device in the above-described method; the functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions; for example, the transmitting unit may be replaced by a transmitter, the receiving unit may be replaced by a receiver, and other units, such as a determining unit, etc. may be replaced by a processor, performing the transceiving operations and the associated processing operations in the respective method embodiments, respectively.

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

Fig. 12 is a schematic structural diagram of a communication device 800 provided in an embodiment of the present application. The communication device 800 may be a first terminal device, and is applied in the system shown in fig. 1 to perform the functions 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 comprises a memory 830. Wherein the processor 810, transceiver 802 and memory 830 can communicate with each other via an internal connection path to transfer control and/or data signals, the memory 2030 is configured to store a computer program, and the processor 810 is configured to call and run the computer program from the memory 830 to control the transceiver 820 to transmit and receive signals. Optionally, the first terminal device 800 may further include an antenna 840 for transmitting 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 one processing device, and the processor 810 is configured to execute program codes stored in the memory 830 to implement the functions. In particular implementations, the memory 830 may also be integrated in the processor 810 or separate from the processor 810. The processor 810 may correspond to a processing unit of the communication device 500.

The transceiver 820 may correspond to the receiving unit 520 and the transmitting 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 circuitry) and a transmitter (or transmitter, transmitting circuitry). Wherein the receiver is for receiving signals and the transmitter is for transmitting signals.

It should be understood that the terminal device 800 shown in fig. 12 is capable of implementing the various processes involving the first terminal device in the method embodiments shown in fig. 3, 6 and 7. The operations and/or functions of the respective modules in the first terminal device 800 are respectively for implementing the respective flows in the above-described method embodiment. Reference is specifically made to the description in the above method embodiments, and detailed descriptions are omitted here as appropriate to avoid repetition.

The above-described processor 810 may be used to perform the actions described in the previous method embodiments as being performed internally by the first terminal device, while the transceiver 820 may be used to perform the actions described in the previous method embodiments as being transmitted to or received from the network device by the first terminal device. Please refer to the description of the foregoing method embodiments, and details are not repeated herein.

Optionally, the first terminal device 800 may further comprise a power supply 850 for providing power to various devices or circuits in the terminal device.

In addition to this, in order to make the function of the first terminal device more complete, 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, and the like, which 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, so as to implement the steps or functions of the second terminal device or the third terminal device in any of the foregoing implementation manners.

Fig. 13 is a schematic structural diagram of a communication device 900 according to an embodiment of the present application, for example, may be a schematic structural diagram of a network device. The network device 900 may be applied to the system shown in fig. 1, and perform the functions of the network device in the above-described method embodiment.

As shown, the exemplary network device 900 may include one or more radio frequency units, such as a remote radio frequency unit (remote radio unit, RRU) 910 and one or more baseband units (BBU) (also referred to as digital units, DUs) 920. The RRU 910 may be referred to as a communication unit or a transceiving unit, corresponding to the transmitting unit 610 and the receiving unit 620 in fig. 11. Alternatively, the transceiver unit 910 may also be referred to as a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 911 and a radio frequency unit 912.

Alternatively, the transceiver unit 910 may include a receiving unit, which may correspond to a receiver (or receiver, receiving circuit), and a transmitting unit, which may correspond to a transmitter (or transmitter, transmitting circuit). The RRU910 is mainly configured to receive and transmit a radio frequency signal and convert the radio frequency signal to a baseband signal, for example, to send first information to a terminal device. The BBU920 is mainly configured to perform baseband processing, control network devices, and the like. The RRU910 and BBU920 may be physically located together or may be physically separate, i.e., a distributed base station.

The BBU920 is a control center of the network device, and may also be referred to as a processing unit, and may correspond to a processing unit included in the communication device 600, and is mainly configured to perform baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and so on. For example, the BBU (processing unit) may be configured to control the base station to perform the operation procedure with respect to the network device in the above-described method embodiment, for example, generate the above-described indication information, etc.

In one example, the BBU920 may be configured by one or more single boards, where the multiple single boards may support a single access radio access network (such as an LTE network) together, or may support radio access networks of different access systems (such as an LTE network, a 5G network, or other networks) respectively. The BBU920 further comprises a memory 921 and a processor 922. The memory 921 is used to store necessary instructions and data. The processor 922 is configured to control the network device to perform necessary actions, for example, to control the network to perform the operation procedure of the method embodiment described above with respect to the network device. The memory 921 and the processor 922 may serve one or more boards. That is, the memory and the processor may be separately provided on each board. It is also possible that multiple boards share the same memory and processor. In addition, each single board can be provided with necessary circuits.

It should be appreciated that the network device 900 shown in fig. 13 is capable of implementing various processes involving the network device in the method embodiments of fig. 3, 6, and 7. The operations and/or functions of the respective modules in the network device 900 are respectively for implementing the corresponding flows in the above-described method embodiments. Reference is specifically made to the description in the above method embodiments, and detailed descriptions are omitted here as appropriate to avoid repetition.

The BBU920 described above may be used to perform the actions described in the method embodiments as being implemented internally by the network device, while the RRU 910 may be used to perform the actions described in the method embodiments as being sent to or received from the terminal device by the network device. Please refer to the description of the foregoing method embodiments, and details are not repeated herein.

The embodiment of the application also provides a processing device, which comprises a processor and an interface; the processor is configured to perform the method of any of the method embodiments described above.

It should be understood that the processing means may be a chip. For example, the processing device may be a field programmable gate array (field programmable gate array, FPGA), an application specific integrated chip (application specific integrated circuit, ASIC), a system on chip (SoC), a central processing unit (central processor unit, CPU), a network processor (network processor, NP), a digital signal processing circuit (digital signal processor, DSP), a microcontroller (micro controller unit, MCU), a programmable controller (programmable logic device, PLD) or other integrated chip.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method. To avoid repetition, a detailed description is not provided herein.

It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip with signal processing capability. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The 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 device, discrete gate or transistor logic, or discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and direct memory bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

According to the method provided by the embodiment of the application, the application further provides a computer program product, which comprises: computer program code which, when run on a computer, causes the computer to perform the transmission method of the embodiment shown in fig. 3.

According to the method provided in the embodiment of the present application, there is further provided a computer readable medium storing a program code, which when run on a computer, causes the computer to perform the method of the embodiment shown in fig. 3.

According to the method provided by the embodiment of the application, the application further provides a system, which comprises the one or more terminal devices and the one or more network devices.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may 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 a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., 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 such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

The network device in the above-mentioned respective apparatus embodiments corresponds entirely to the network device or the terminal device in the terminal device and method embodiments, the respective steps are performed by respective modules or units, for example, the steps of receiving or transmitting in the method embodiments are performed by the communication unit (transceiver), and other steps than transmitting and receiving may be performed by the processing unit (processor). Reference may be made to corresponding method embodiments for the function of a specific unit. Wherein the processor may be one or more.

In this application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein A, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, a-b, a-c, b-c or a-b-c, wherein a, b, c can be single or multiple.

Those of ordinary skill in the art will appreciate that the various method steps and elements described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the steps and components of the various embodiments have been described generally in terms of functionality in the foregoing description to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Those of ordinary skill in the art may implement the described functionality using different approaches for each particular application, but such implementation is not to be considered as beyond the scope of the present application.

As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components may reside within a process and/or thread of execution and a component may be localized on one computer and/or distributed between two or more computers. Furthermore, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from two components interacting with one another in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).

Those of ordinary skill in the art will appreciate that the various illustrative logical blocks (illustrative logical block) and steps (steps) described in connection with the embodiments disclosed herein can be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application. It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of 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 in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

In the above-described embodiments, the functions of the respective functional units may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may 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 (program) are loaded and executed on a computer, the processes or functions described in accordance with the embodiments of the present application are fully or partially produced. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., 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 such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A transmission method, comprising:

the method comprises the steps that a first terminal device determines a first corresponding relation, wherein the first corresponding relation is used for indicating a propagation type corresponding to a destination identifier, and the propagation type comprises any one of multicast service, unicast service or broadcast service;

the first terminal device sending the first correspondence to a network device, including: the first terminal equipment sends side-link terminal equipment information to the network equipment, wherein the side-link terminal equipment information comprises a list of second destination identifiers, and the list of the second destination identifiers comprises a corresponding relation between each destination identifier and the propagation type;

the first terminal equipment sends a second Buffer Status Report (BSR) to the network equipment, wherein the second BSR comprises 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 for indicating a target service in a list of the second destination identifier and determining a side uplink resource scheduled by the first terminal equipment.

2. The transmission method according to claim 1, characterized in that the method further comprises:

the first terminal device sends auxiliary information to the network device, wherein the auxiliary information is used for indicating a service model, and the service model comprises any one or more of data size, period, priority and reliability corresponding to a service.

3. A transmission method, comprising:

the network equipment determines a propagation type corresponding to at least one destination identifier according to the first corresponding relation;

the network device receives a first corresponding relation sent by a first terminal device, and the method comprises the following steps: the network equipment receives side uplink terminal equipment information sent by the first terminal equipment, wherein the side uplink terminal equipment information comprises a list of second destination identifiers, and the list of the second destination identifiers comprises a corresponding relation between each destination identifier and the propagation type;

the network equipment receives a second Buffer Status Report (BSR) sent by the first terminal equipment, wherein the second BSR comprises 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 for indicating a target service in a list of a second destination identifier;

the network equipment determines the propagation type corresponding to the target service in the second target identifier list according to the index of the target identifier;

And the network equipment determines the side uplink resource scheduled for the first terminal equipment according to the propagation type corresponding to the target service.

4. A transmission method according to claim 3, characterized in that the method further comprises:

the network device receives auxiliary information sent by the first terminal device, wherein the auxiliary information is used for indicating a service model, and the service model comprises any one or more of data size, period, priority and reliability corresponding to a service.

5. The transmission method according to claim 4, characterized in that the method further comprises:

and the network equipment determines side uplink resources configured for the first terminal equipment according to the propagation type and the service model.

6. A communication device, comprising:

a sending unit, configured to send the first correspondence to a network device;

the sending unit is specifically configured to send side uplink terminal device information to the network device, where the side uplink terminal device information includes a list of second destination identifiers, where the list of second destination identifiers includes a correspondence between each destination identifier and the propagation type;

The transmitting unit is further configured to:

and sending a second Buffer Status Report (BSR) to the network equipment, wherein the second BSR comprises 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 for indicating a target service in a list of the second destination identifier and determining a side uplink resource scheduled by the first terminal equipment.

7. The communication device of claim 6, wherein the transmitting unit is further configured to:

and sending auxiliary information to the network equipment, wherein the auxiliary information is used for indicating a service model, and the service model comprises any one or any several of data size, period, priority and reliability corresponding to the service.

8. A communication device, comprising:

the receiving unit is used for receiving a first corresponding relation sent by the first terminal equipment, wherein the first corresponding relation is used for indicating a propagation type corresponding to the destination identifier, and the propagation type comprises any one of multicast service, unicast service or broadcast service;

the processing unit is used for determining the propagation type corresponding to at least one destination identifier according to the first corresponding relation;

The receiving unit is specifically configured to:

receiving side uplink terminal equipment information sent by the first terminal equipment, wherein the side uplink terminal equipment information comprises a list of second destination identifiers, and the list of the second destination identifiers comprises a corresponding relation between each destination identifier and the propagation type;

the receiving unit is further configured to:

receiving a second Buffer Status Report (BSR) sent by the first terminal equipment, wherein the second BSR comprises 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 for indicating a target service in a list of a second destination identifier;

the processing unit is further configured to:

determining the propagation type corresponding to the target service in the second target identifier list according to the index of the target identifier;

and determining the side uplink resource scheduled for the first terminal equipment according to the propagation type corresponding to the target service.

9. The communication device of claim 8, wherein the receiving unit is further configured to:

and receiving auxiliary information sent by the first terminal equipment, wherein the auxiliary information is used for indicating a service model, and the service model comprises any one or any more of data size, period, priority and reliability corresponding to the service.

10. The communication device of claim 9, wherein the processing unit is further configured to:

11. A communication device, the communication device comprising: at least one processor and a communication interface for information interaction of the communication device with other communication devices, which when executed in the at least one processor causes the communication device to implement the transmission method according to claim 1 or 2.

12. A communication device, the communication device comprising: at least one processor and a communication interface for information interaction by the communication device with other communication devices, which when executed in the at least one processor causes the communication device to implement the transmission method according to any one of claims 3 to 5.

13. A computer readable medium, comprising a computer program which, when run on a computer, causes the computer to perform the transmission method according to claim 1 or 2.

14. A computer readable medium, comprising a computer program which, when run on a computer, causes the computer to perform the transmission method according to any one of claims 3 to 5.

15. A communication system, comprising:

the communication device of claim 11; and/or the number of the groups of groups,

the communication device of claim 12.