CN110944305B

CN110944305B - Data transmission method of V2X dual-mode terminal, 4G base station and terminal

Info

Publication number: CN110944305B
Application number: CN201811115952.2A
Authority: CN
Inventors: 王彦; 周欣
Original assignee: Potevio Information Technology Co Ltd
Current assignee: Potevio Information Technology Co Ltd
Priority date: 2018-09-25
Filing date: 2018-09-25
Publication date: 2023-06-27
Anticipated expiration: 2038-09-25
Also published as: CN110944305A

Abstract

The embodiment of the invention provides a data transmission method of a V2X dual-mode terminal, a 4G base station and a terminal, wherein the method comprises the following steps: receiving a Buffer Status Report (BSR) sent by a terminal; the terminal is a V2X dual-mode terminal; forwarding the BSR to a 5G base station, so that the 5G base station sends 5G downlink control information DCI corresponding to the 5G base station to the terminal according to the BSR, so that the terminal sends data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface corresponding to the 5G DCI. The 4G base station executes the method; the terminal performs another method. According to the data transmission method of the V2X dual-mode terminal, the 4G base station and the terminal, the terminal can send the data to be transmitted to the corresponding data receiving terminal on the 5G auxiliary link interface, so that the data to be transmitted does not need to be forwarded by different base stations and can be directly received by the data receiving terminal, on one hand, the transmission time delay can be reduced, and on the other hand, the network load is also reduced.

Description

Data transmission method of V2X dual-mode terminal, 4G base station and terminal

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a data transmission method of a V2X dual-mode terminal, a 4G base station and a terminal.

Background

With the development of intelligent transportation technology, vehicle-to-external information exchange (vehicle to everything, hereinafter referred to as "V2X") is widely used, the V2X terminal in the prior art is a 4G-single mode terminal, and with the development of communication technology, a 5G-single mode terminal and a 4G/5G-based V2X dual mode terminal are coming out, but at present, no method for data transmission is available for the terminal in the 5G V2X technology.

Therefore, how to avoid the above-mentioned drawbacks and to reasonably transmit data to the data receiving terminal based on the V2X dual mode terminal becomes a problem to be solved.

Disclosure of Invention

Aiming at the problems existing in the prior art, the embodiment of the invention provides a data transmission method of a V2X dual-mode terminal, a 4G base station and a terminal.

In a first aspect, an embodiment of the present invention provides a data transmission method of a V2X dual mode terminal, where the method includes:

receiving a Buffer Status Report (BSR) sent by a terminal; the terminal is a V2X dual-mode terminal;

forwarding the BSR to a 5G base station, so that the 5G base station sends downlink control information DCI corresponding to the 5G base station to the terminal according to the BSR, and the terminal sends data to be transmitted to a corresponding data receiving terminal on a 5G auxiliary link interface corresponding to the 5G DCI.

In a second aspect, an embodiment of the present invention further provides a data transmission method of a V2X dual mode terminal, where the method includes:

sending a BSR to a 4G base station; for the 4G base station to forward the BSR to a 5G base station; the 5G base station sends downlink control information DCI corresponding to the 5G base station according to the BSR;

receiving the 5G DCI, and sending data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface corresponding to the 5G DCI; the data receiving terminal corresponding to 5G is a 5G-V2X single-mode terminal and/or other V2X dual-mode terminals.

In a third aspect, an embodiment of the present invention further provides a 4G base station, where the 4G base station includes:

a receiving unit, configured to receive a buffer status report BSR sent by a terminal; the terminal is a V2X dual-mode terminal;

and the forwarding unit is used for forwarding the BSR to the 5G base station, so that the 5G base station sends downlink control information DCI corresponding to the 5G base station to the terminal according to the BSR, and the terminal sends data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface corresponding to the 5G DCI.

In a fourth aspect, an embodiment of the present invention provides an electronic device, including: a first processor, a first memory, and a first bus, wherein,

the first processor and the first memory complete communication with each other through the first bus;

the first memory stores program instructions executable by the first processor, the first processor invoking the program instructions capable of performing the method of:

In a fifth aspect, embodiments of the present invention provide a non-transitory computer readable storage medium comprising:

the non-transitory computer readable storage medium stores computer instructions that cause the computer to perform the method of:

In a sixth aspect, an embodiment of the present invention further provides a terminal, where the terminal includes:

the first sending module is used for sending the BSR to the 4G base station; for the 4G base station to forward the BSR to a 5G base station; the 5G base station sends downlink control information DCI corresponding to the 5G base station according to the BSR;

the second sending module is used for receiving the 5G DCI and sending data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface corresponding to the 5G DCI; the data receiving terminal corresponding to 5G is a 5G-V2X single-mode terminal and/or other V2X dual-mode terminals.

In a seventh aspect, an embodiment of the present invention provides an electronic device, including: a second processor, a second memory, and a second bus, wherein,

the second processor and the second memory complete communication with each other through the second bus;

the second memory stores program instructions executable by the second processor, the second processor invoking the program instructions capable of performing the method of:

In an eighth aspect, embodiments of the present invention provide a non-transitory computer readable storage medium comprising:

According to the data transmission method, the 4G base station and the terminal of the V2X dual-mode terminal, the terminal independently transmits the BSR to the 4G base station, the 4G base station transmits the BSR to the 5G base station, and the 5G base station transmits the 5G DCI to the terminal, so that the terminal can transmit data to be transmitted to a corresponding data receiving terminal on a 5G auxiliary link interface, the data to be transmitted does not need to be transmitted through different base stations, and the data to be transmitted can be directly received by the data receiving terminal, so that on one hand, the transmission delay can be reduced, and on the other hand, the network load is also reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a flow chart of a data transmission method of a V2X dual-mode terminal according to an embodiment of the present invention;

fig. 2 is a flow chart of a data transmission method of a V2X dual-mode terminal according to another embodiment of the present invention;

fig. 3 is a flow chart of a data transmission method of a V2X dual-mode terminal according to another embodiment of the present invention;

fig. 4 is a schematic structural diagram of a data transmission 4G base station of a V2X dual-mode terminal according to an embodiment of the present invention;

fig. 5 is a schematic diagram of an entity structure of an electronic device according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a data transmission terminal structure of a V2X dual mode terminal according to an embodiment of the present invention;

fig. 7 is a schematic diagram of an entity structure of an electronic device according to an embodiment of the present invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Fig. 1 is a flow chart of a data transmission method of a V2X dual-mode terminal according to an embodiment of the present invention, as shown in fig. 1, and the data transmission method of the V2X dual-mode terminal according to the embodiment of the present invention includes the following steps:

s101: receiving a Buffer Status Report (BSR) sent by a terminal; the terminal is a V2X dual mode terminal.

Specifically, the 4G base station receives a Buffer Status Report (BSR) sent by the terminal; the terminal is a V2X dual mode terminal. Fig. 2 is a flow chart of a data transmission method of a V2X dual-mode terminal according to another embodiment of the present invention, as shown in fig. 2, the 4G/5G V2X dual-mode terminal in fig. 2 corresponds to the above-mentioned terminal, i.e. the V2X dual-mode terminal.

S102: forwarding the BSR to a 5G base station, so that the 5G base station sends downlink control information DCI corresponding to the 5G base station to the terminal according to the BSR, and the terminal sends data to be transmitted to a corresponding data receiving terminal on a 5G auxiliary link interface corresponding to the 5G DCI.

Specifically, the 4G base station forwards the BSR to the 5G base station, so that the 5G base station sends downlink control information DCI corresponding to the 5G base station to the terminal according to the BSR, so that the terminal sends data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface corresponding to the 5G DCI. In the LTE system, transmission of messages between V2X terminals is supported using a Sidelink (Sidelink) interface (hereinafter, referred to as a PC5 interface). The LTE base station will configure the pool of transmission resources on the PC5 interface for V2X traffic transmission. For transmission based on the PC5 interface, there are two ways of resource scheduling allocation. One is that the LTE base station allocates corresponding radio resources for PC5 transmission scheduling of the V2X terminal in a connected state, this Mode becomes Mode 3 (Mode 3); the other is that the V2X terminal autonomously selects radio resources required for transmission in a transmission resource pool configured by the system based on the perceived result of the resource pool, which is called Mode 4 (Mode 4).

For the mode 3 scheduling mode, when the V2X terminal has a service message to be transmitted, the method reports SR (Scheduling Request) to the base station for requesting network transmission resources, and then the terminal reports a sip link BSR to inform the base station of the amount of data to be transmitted on the indicated logical channel group, and the base station allocates the sip link transmission resources to the terminal based on the BSR information for the terminal to transmit corresponding data. The sip BSR reported by the terminal includes 'Destination Index', which is an index of the V2X service target layer 2ID (Destination Layer-2 ID), and there is a one-to-one correspondence between the V2X service target layer 2ID and the V2X service type, and the correspondence is preset in the base station (including the 4G base station and the 5G base station) and the terminal. Therefore, when the V2X application generates a certain type of service message, mapping the service type to the corresponding service target layer 2ID, finding an index of the target ID, and reporting the index value contained in the Sidelink BSR to the base station. After receiving the Sidelink BSR, the base station finds the corresponding service target layer 2ID based on the indicated index value, and through a preset mapping relation, the base station can know the V2X service type corresponding to the data requested to be transmitted by the V2X terminal, and determines the scheduling allocation strategy of the required Sidelink transmission resource according to the service type.

In the 5G NR system, data transmission using a Sidelink (hereinafter referred to as 5G NR Sidelink) between V2X terminals is also supported, and for data transmission of NR Sidelink, the above two resource scheduling allocation modes, mode 3 (Mode 3) and Mode 4 (Mode 4), are also supported.

The 5G NR Sidelink interface and the LTE PC5 interface are two different interfaces, which have different transmission characteristics, such as different physical layer frame formats, different subcarrier spacing configurations and the like. The 5G NR Sidelink interface has stronger function and lower transmission delay than the LTE PC5 interface, and can provide higher reliability guarantee, so that NR Sidelink can support the service types of LTE V2X (such as basic security type information) and the service types specific to 5G V2X (such as automatic driving, advanced sensor, remote driving and the like).

The 5G base station receives the Sidelink BSR information transmitted by the 4G base station, allocates transmission resources on a 5G NR Sidelink interface for the terminal based on the information, and then transmits corresponding DCI to the terminal through a 5G air interface, wherein the scheduling information of the allocated 5G NR Sidelink transmission resources is contained, and the information can comprise an index of Destination Layer-2ID corresponding to a service message, a logical channel group identifier (LCG ID) of data to be transmitted and a buffer size. I.e., the 5G interface is a 5G NR Sidelink interface, and referring to fig. 2, the data receiving terminal corresponding to 5G is a 5G-V2X single mode terminal and/or other V2X dual mode terminals (i.e., V2X dual mode terminals other than the terminal transmitting the BSR, not shown in fig. 2).

Further, forwarding the BSR to a 5G base station may include: and forwarding the BSR to the 5G base station through an interface application protocol message. Further, the interface application protocol message includes an X2 interface application protocol message; the X2 interface application protocol message comprises an X2 interface application protocol identifier corresponding to the terminal. The interface application protocol message further comprises an Xn interface application protocol message; the Xn interface application protocol message comprises an Xn interface application protocol identifier corresponding to the terminal. Referring to fig. 2, forwarding of BSR can be achieved by X2/Xn.

Further, after the step of receiving the buffer status report BSR sent by the terminal, the method further includes: and transmitting the 4G DCI corresponding to the 4G base station to the terminal, so that the terminal transmits the data to be transmitted to the corresponding data receiving terminal on the 4G interface corresponding to the 4G DCI. Referring to fig. 2,4G, after receiving the sip BSR, the base station finds the corresponding Destination Layer-2ID based on the Destination Layer-2ID index, and according to the network preset, the 4G base station knows that the V2X message of the target needs to be sent to both the sip interfaces, so that the sip BSR information is sent to the 5G base station through the X2/Xn interface, and meanwhile, the 4G base station allocates the transmission resources on the LTE PC5 interface for the terminal based on the information in the BSR, and then sends the DCI 5A to the terminal through the 4G air interface, where the scheduling information of the allocated PC5 interface transmission resources is included, and the english of the DCI is all referred to as Downlink Control Information.

Referring to the above description, the 4G interface is a 4G-V2X single mode terminal and/or other V2X dual mode terminals (i.e., V2X dual mode terminals other than the terminal transmitting the BSR, not shown in fig. 2) even though the PC5 interface corresponds to the 4G.

The technical scheme of the embodiment of the invention can be applied to a plurality of scenes as follows:

scene one: in the 4G and 5G public coverage area, the V2X dual-mode terminal is simultaneously connected to the 4G and 5G networks in a dual-connection mode

Based on the size of the service message, the 4G/5G V2X dual-mode terminal reports Sidelink BSR information to the current 4G service base station, wherein the Sidelink BSR information comprises: an index of Destination Layer-2ID corresponding to the service message, a logical channel group identification (LCG ID) of the message to be transmitted, and a buffer size;

after receiving the Sidelink BSR, the 4G service base station finds out the corresponding Destination Layer-2ID based on the index of Destination Layer-2ID, and according to the preset network, the 4G base station knows that the V2X message of the target needs to be sent to both Sidelink interfaces, so that the Sidelink BSR information is sent to the 5G service base station through the X2/Xn interface, meanwhile, the 4G service base station allocates transmission resources on an LTE PC5 interface for the terminal based on the information in the BSR, and then sends DCI 5A to the terminal through a 4G air interface, wherein the scheduling information of the allocated PC5 interface transmission resources is contained;

the 5G service base station receives the Sidelink BSR information transmitted by the 4G service base station, allocates transmission resources on a 5G NR Sidelink interface for the terminal based on the information, and then transmits corresponding DCI to the terminal through a 5G air interface, wherein the DCI comprises scheduling information of the allocated 5G NR Sidelink transmission resources;

the 4G/5G V2X dual-mode terminal receives DCI sent by a network from a 4G air interface and a 5G air interface respectively, and sends a V2X service message to be transmitted on an LTE PC5 interface and a 5G NR Sidelink respectively according to scheduling information in the DCI;

the surrounding 4G V2X single-mode terminals receive the message through a PC5 interface, and the surrounding 5G V2X single-mode terminals receive the message through a 5G NR Sidelink interface.

Scene II: in the 4G and 5G public coverage area, the V2X dual-mode terminal is connected to the 5G network in a single connection mode

Based on the size of the service message, the 4G/5G V2X dual-mode terminal reports Sidelink BSR information to the current 5G service base station, wherein the Sidelink BSR information comprises: an index of Destination Layer-2ID corresponding to the service message, a logical channel group identification (LCG ID) of the message to be transmitted, and a buffer size;

the 4G/5G V2X dual-mode terminal autonomously selects transmission resources on an LTE PC5 interface and sends the information based on LTE V2X transmission resource configuration information broadcasted by a 4G network, and then surrounding 4G V2X single-mode terminals receive the information through the PC5 interface;

after receiving the Sidelink BSR, the 5G service base station allocates transmission resources on a 5G NR Sidelink interface for the terminal based on the information in the BSR, and then sends DCI to the terminal through a 5G air interface, wherein the DCI comprises scheduling information of the allocated transmission resources of the 5G NR Sidelink interface;

the 4G/5G V2X dual-mode terminal receives DCI sent by a network from an air interface, and sends a V2X service message to be transmitted on a 5G NR Sidelink interface according to scheduling information in the DCI;

the surrounding 5G v2x single-mode terminals receive this message over the 5G NR sip interface.

Scene III: in the 4G coverage area, the V2X dual-mode terminal is connected to the 4G network in a single connection mode

the 4G/5G V2X dual-mode terminal autonomously selects transmission resources on a 5G NR Sidelink interface based on preconfigured 5G V2X transmission resource information and sends the information, and then the surrounding 5G V2X single-mode terminals receive the information through the 5G NR Sidelink interface;

after receiving the Sidelink BSR, the 4G service base station allocates transmission resources on an LTE PC5 interface for the terminal based on the information in the BSR, and then sends DCI 5A to the terminal through a 4G air interface, wherein the DCI 5A comprises scheduling information of the allocated transmission resources of the PC5 interface;

the 4G/5G V2X dual-mode terminal receives DCI 5A sent by a network from an air interface, and sends a V2X service message to be transmitted on an LTE PC5 interface according to scheduling information in the DCI;

the surrounding 4g v2x single mode terminals receive this message via the PC5 interface.

Scene four: in areas with 4G coverage and/or 5G coverage, the V2X dual mode terminal is in an idle state

The 4G/5G V2X dual-mode terminal adopts the mode of the existing mode 4, and based on the transmission resource configuration information of 4G network broadcasting and/or 5G network broadcasting, autonomously selects transmission resources on an LTE PC5 interface and 5G NR Sidelink and sends messages.

The surrounding 5G V2X single-mode terminals receive the message through a 5G NR Sidelink interface, and the surrounding 4G V2X single-mode terminals receive the message through a PC5 interface.

Scene five: in the area without 4G coverage or 5G coverage, the V2X dual-mode terminal is in an out-of-coverage state

The 4G/5G V2X dual-mode terminal adopts the mode of the existing mode 4, and based on the preconfigured 4G and 5G V2X transmission resource configuration information, transmission resources are selected independently on an LTE PC5 interface and a 5G NR Sidelink respectively and a message is sent;

According to the data transmission method of the V2X dual-mode terminal, the terminal independently transmits the BSR to the 4G base station, the 4G base station forwards the BSR to the 5G base station, and the 5G base station transmits the 5G DCI to the terminal, so that the terminal can transmit data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface, the data to be transmitted does not need to be forwarded by different base stations, the data receiving terminal can directly receive the data, on one hand, the transmission time delay can be reduced, and on the other hand, the network load is also reduced.

On the basis of the foregoing embodiment, the forwarding the BSR to the 5G base station includes:

and forwarding the BSR to the 5G base station through an interface application protocol message.

Specifically, the 4G base station forwards the BSR to the 5G base station through an interface application protocol message. Reference may be made to the above embodiments, and no further description is given.

The data transmission method of the V2X dual-mode terminal provided by the embodiment of the invention can efficiently forward the BSR to the 5G base station, and ensures the normal operation of the method.

On the basis of the above embodiment, the interface application protocol message includes an X2 interface application protocol message; the X2 interface application protocol message comprises an X2 interface application protocol identifier corresponding to the terminal.

Specifically, the interface application protocol message in the 4G base station includes an X2 interface application protocol message; the X2 interface application protocol message comprises an X2 interface application protocol identifier corresponding to the terminal. Reference may be made to the above embodiments, and no further description is given.

The data transmission method of the V2X dual-mode terminal provided by the embodiment of the invention can further efficiently forward the BSR to the 5G base station, thereby ensuring the normal operation of the method.

On the basis of the above embodiment, the interface application protocol message further includes an Xn interface application protocol message; the Xn interface application protocol message comprises an Xn interface application protocol identifier corresponding to the terminal.

Specifically, the interface application protocol message in the 4G base station further includes an Xn interface application protocol message; the Xn interface application protocol message comprises an Xn interface application protocol identifier corresponding to the terminal. Reference may be made to the above embodiments, and no further description is given.

On the basis of the foregoing embodiment, after the step of receiving the buffer status report BSR sent by the terminal, the method further includes:

and transmitting DCI corresponding to the 4G base station to the terminal, so that the terminal transmits data to be transmitted to a corresponding data receiving terminal on a 4G sidelink interface corresponding to the 4G DCI.

Specifically, the 4G base station sends DCI corresponding to the 4G base station to the terminal, so that the terminal sends data to be transmitted to a corresponding data receiving terminal on a 4G sidelink interface corresponding to the 4G DCI. Reference may be made to the above embodiments, and no further description is given.

According to the data transmission method of the V2X dual-mode terminal, the data to be transmitted is sent to the corresponding data receiving terminal on the 4G auxiliary link interface corresponding to the 4G DCI, and further, the data can be transmitted to the 4G-V2X single-mode terminal and/or other V2X dual-mode terminals, so that various terminal types are effectively adapted.

Fig. 3 is a flow chart of a data transmission method of a V2X dual-mode terminal according to another embodiment of the present invention, as shown in fig. 3, and the data transmission method of a V2X dual-mode terminal according to the embodiment of the present invention includes the following steps:

s301: sending a BSR to a 4G base station; for the 4G base station to forward the BSR to a 5G base station; and the 5G base station sends downlink control information DCI corresponding to the 5G base station according to the BSR.

Specifically, the terminal sends a BSR to the 4G base station; for the 4G base station to forward the BSR to a 5G base station; and the 5G base station sends downlink control information DCI corresponding to the 5G base station according to the BSR.

S302: receiving the 5G DCI, and sending data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface corresponding to the 5G DCI; the data receiving terminal corresponding to 5G is a 5G-V2X single-mode terminal and/or other V2X dual-mode terminals.

Specifically, the terminal receives the 5G DCI and sends data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface corresponding to the 5G DCI; the data receiving terminal corresponding to 5G is a 5G-V2X single-mode terminal and/or other V2X dual-mode terminals. Reference is made to the above description and will not be repeated.

On the basis of the foregoing embodiment, after the step of sending the BSR to the 4G base station, the method further includes:

receiving DCI (downlink control information) corresponding to the 4G base station and sent by the 4G base station, and sending data to be transmitted to a corresponding data receiving terminal on a 4G sidelink interface corresponding to the 4G DCI; the data receiving terminal corresponding to the 4G is a 4G-V2X single-mode terminal and/or other V2X dual-mode terminals.

Specifically, the terminal receives DCI (downlink control information) corresponding to the 4G base station and sent by the 4G base station, and sends data to be transmitted to a corresponding data receiving terminal on a 4G sidelink interface corresponding to the 4G DCI; the data receiving terminal corresponding to the 4G is a 4G-V2X single-mode terminal and/or other V2X dual-mode terminals. Reference is made to the above description and will not be repeated.

Fig. 4 is a schematic structural diagram of a data transmission 4G base station of a V2X dual-mode terminal according to an embodiment of the present invention, as shown in fig. 4, and in the embodiment of the present invention, a data transmission 4G base station of a V2X dual-mode terminal is provided, including a receiving unit 401 and a forwarding unit 402, where:

the receiving unit 401 is configured to receive a buffer status report BSR sent by a terminal; the terminal is a V2X dual-mode terminal; the forwarding unit 402 is configured to forward the BSR to a 5G base station, so that the 5G base station sends downlink control information DCI corresponding to the 5G base station to the terminal according to the BSR, so that the terminal sends data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface corresponding to the 5G DCI.

Specifically, the receiving unit 401 is configured to receive a buffer status report BSR sent by the terminal; the terminal is a V2X dual-mode terminal; the forwarding unit 402 is configured to forward the BSR to a 5G base station, so that the 5G base station sends downlink control information DCI corresponding to the 5G base station to the terminal according to the BSR, so that the terminal sends data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface corresponding to the 5G DCI.

According to the data transmission 4G base station of the V2X dual-mode terminal provided by the embodiment of the invention, the terminal independently transmits the BSR to the 4G base station, the 4G base station forwards the BSR to the 5G base station, and the 5G base station transmits the 5GDCI to the terminal, so that the terminal can transmit data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface, the data to be transmitted does not need to be forwarded by different base stations, and can be directly received by the data receiving terminal, so that on one hand, the transmission delay can be reduced, and on the other hand, the network load is also reduced.

The data transmission 4G base station of the V2X dual mode terminal provided in the embodiment of the present invention may be specifically used to execute the processing flows of the above method embodiments, and the functions thereof are not described herein in detail, and may refer to the detailed description of the above method embodiments.

Fig. 5 is a schematic diagram of an entity structure of an electronic device according to an embodiment of the present invention, as shown in fig. 5, where the electronic device includes: a first processor (processor) 501, a first memory (memory) 502, and a first bus 503;

wherein, the first processor 501 and the first memory 502 complete communication with each other through the first bus 503;

the first processor 501 is configured to invoke the program instructions in the first memory 502 to perform the methods provided in the above method embodiments, for example, including: receiving a Buffer Status Report (BSR) sent by a terminal; the terminal is a V2X dual-mode terminal; forwarding the BSR to a 5G base station, so that the 5G base station sends downlink control information DCI corresponding to the 5G base station to the terminal according to the BSR, and the terminal sends data to be transmitted to a corresponding data receiving terminal on a 5G auxiliary link interface corresponding to the 5G DCI.

The present embodiment discloses a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, are capable of performing the methods provided by the above-described method embodiments, for example comprising: receiving a Buffer Status Report (BSR) sent by a terminal; the terminal is a V2X dual-mode terminal; forwarding the BSR to a 5G base station, so that the 5G base station sends downlink control information DCI corresponding to the 5G base station to the terminal according to the BSR, and the terminal sends data to be transmitted to a corresponding data receiving terminal on a 5G auxiliary link interface corresponding to the 5G DCI.

The present embodiment provides a non-transitory computer-readable storage medium storing computer instructions that cause a computer to perform the methods provided by the above-described method embodiments, for example, including: receiving a Buffer Status Report (BSR) sent by a terminal; the terminal is a V2X dual-mode terminal; forwarding the BSR to a 5G base station, so that the 5G base station sends downlink control information DCI corresponding to the 5G base station to the terminal according to the BSR, and the terminal sends data to be transmitted to a corresponding data receiving terminal on a 5G auxiliary link interface corresponding to the 5G DCI.

Fig. 6 is a schematic structural diagram of a data transmission terminal of a V2X dual-mode terminal according to an embodiment of the present invention, as shown in fig. 6, and the embodiment of the present invention provides a data transmission terminal of a V2X dual-mode terminal, which includes a first sending module 601 and a second sending module 602, wherein:

the first sending module 601 is configured to send a BSR to a 4G base station; for the 4G base station to forward the BSR to a 5G base station; the 5G base station sends downlink control information DCI corresponding to the 5G base station according to the BSR; the second sending module 602 is configured to receive the 5G DCI, and send data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface corresponding to the 5G DCI; the data receiving terminal corresponding to 5G is a 5G-V2X single-mode terminal and/or other V2X dual-mode terminals.

Specifically, the first sending module 601 is configured to send a BSR to a 4G base station; for the 4G base station to forward the BSR to a 5G base station; the 5G base station sends downlink control information DCI corresponding to the 5G base station according to the BSR; the second sending module 602 is configured to receive the 5G DCI, and send data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface corresponding to the 5G DCI; the data receiving terminal corresponding to 5G is a 5G-V2X single-mode terminal and/or other V2X dual-mode terminals.

According to the data transmission terminal of the V2X dual-mode terminal provided by the embodiment of the invention, the terminal independently transmits the BSR to the 4G base station, the 4G base station forwards the BSR to the 5G base station, and the 5G base station transmits the 5G DCI to the terminal, so that the terminal can transmit data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface, the data to be transmitted does not need to be forwarded by different base stations, and the data receiving terminal can directly receive the data, so that on one hand, the transmission time delay can be reduced, and on the other hand, the network load is also reduced.

The data transmission terminal of the V2X dual mode terminal provided in the embodiment of the present invention may be specifically used to execute the processing flows of the above method embodiments, and the functions thereof are not described herein in detail, and may refer to the detailed description of the above method embodiments.

Fig. 7 is a schematic diagram of an entity structure of an electronic device according to an embodiment of the present invention, as shown in fig. 7, where the electronic device includes: a second processor (processor) 701, a second memory (memory) 702, and a second bus 703;

wherein, the second processor 701 and the second memory 702 complete communication with each other through the second bus 703;

the second processor 701 is configured to invoke the program instructions in the second memory 702 to perform the methods provided in the above method embodiments, for example, including: sending a BSR to a 4G base station; for the 4G base station to forward the BSR to a 5G base station; the 5G base station sends downlink control information DCI corresponding to the 5G base station according to the BSR; receiving the 5G DCI, and sending data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface corresponding to the 5G DCI; the data receiving terminal corresponding to 5G is a 5G-V2X single-mode terminal and/or other V2X dual-mode terminals.

The present embodiment discloses a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, are capable of performing the methods provided by the above-described method embodiments, for example comprising: sending a BSR to a 4G base station; for the 4G base station to forward the BSR to a 5G base station; the 5G base station sends downlink control information DCI corresponding to the 5G base station according to the BSR; receiving the 5G DCI, and sending data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface corresponding to the 5G DCI; the data receiving terminal corresponding to 5G is a 5G-V2X single-mode terminal and/or other V2X dual-mode terminals.

The present embodiment provides a non-transitory computer-readable storage medium storing computer instructions that cause a computer to perform the methods provided by the above-described method embodiments, for example, including: sending a BSR to a 4G base station; for the 4G base station to forward the BSR to a 5G base station; the 5G base station sends downlink control information DCI corresponding to the 5G base station according to the BSR; receiving the 5G DCI, and sending data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface corresponding to the 5G DCI; the data receiving terminal corresponding to 5G is a 5G-V2X single-mode terminal and/or other V2X dual-mode terminals.

Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the above method embodiments may be implemented by hardware associated with program instructions, where the foregoing program may be stored in a computer readable storage medium, and when executed, the program performs steps including the above method embodiments; and the aforementioned storage medium includes: various media that can store program code, such as ROM, RAM, magnetic or optical disks.

The above-described embodiments of electronic devices and the like are merely illustrative, wherein the elements described as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the embodiments of the present invention, and are not limited thereto; although embodiments of the present invention have been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The data transmission method of the V2X dual-mode terminal is characterized by being applied to a 4G base station and comprising the following steps of:

forwarding the BSR to a 5G base station, so that the 5G base station sends downlink control information DCI corresponding to the 5G base station to the terminal according to the BSR, and the terminal sends data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface corresponding to the 5G DCI;

after the step of receiving the buffer status report BSR sent by the terminal, the method further includes:

2. The method of claim 1, wherein the forwarding the BSR to a 5G base station comprises:

3. The method of claim 2, wherein the interface application protocol message comprises an X2 interface application protocol message; the X2 interface application protocol message comprises an X2 interface application protocol identifier corresponding to the terminal.

4. A method according to claim 3, wherein the interface application protocol message further comprises an Xn interface application protocol message; the Xn interface application protocol message comprises an Xn interface application protocol identifier corresponding to the terminal.

5. A data transmission method of a V2X dual mode terminal, comprising:

receiving 5G DCI, and sending data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface corresponding to the 5G DCI; the data receiving terminals corresponding to the 5G are 5G-V2X single-mode terminals and/or other V2X dual-mode terminals;

after the step of sending the BSR to the 4G base station, the method further includes:

6. A 4G base station, comprising:

a forwarding unit, configured to forward the BSR to a 5G base station, so that the 5G base station sends downlink control information DCI corresponding to the 5G base station to the terminal according to the BSR, so that the terminal sends data to be transmitted to a corresponding data receiving terminal on a 5G sidelink interface corresponding to the 5G DCI;

the 4G base station is further configured to:

7. An electronic device, comprising: a first processor, a first memory, and a first bus, wherein:

the first memory stores program instructions executable by the first processor, the first processor invoking the program instructions capable of performing the method of any of claims 1-4.

8. A non-transitory computer readable storage medium storing computer instructions that cause the computer to perform the method of any one of claims 1 to 4.

9. A terminal, comprising:

the second sending module is used for receiving the 5G DCI and sending the data to be transmitted to the corresponding data receiving terminal on the 5G sidelink interface corresponding to the 5G DCI; the data receiving terminals corresponding to the 5G are 5G-V2X single-mode terminals and/or other V2X dual-mode terminals;

the terminal is also configured to:

10. An electronic device, comprising: a second processor, a second memory, and a second bus, wherein:

the second memory stores program instructions executable by the second processor, the second processor invoking the program instructions capable of performing the method of claim 5.

11. A non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the method of claim 5.