CN113784312A

CN113784312A - Method, system, device and medium for reducing relay node selection in V2X protocol

Info

Publication number: CN113784312A
Application number: CN202111040598.3A
Authority: CN
Inventors: 刘建德; 梁宏建; 马显卿; 谢强
Original assignee: Shenzhen Consys Technology Co ltd
Current assignee: Shenzhen Consys Technology Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2021-12-10

Abstract

The embodiment of the application belongs to the technical field of wireless communication, and relates to a method, a system, equipment and a medium for reducing relay node selection in a V2X protocol. According to the method, when a sending end UE needs to send broadcast messages to a receiving end UE which is not in the coverage range, the adjacent end UE in the coverage range is screened according to the channel quality and the preset channel quality threshold value of the adjacent end UE to obtain an initial relay end UE with high channel quality, the initial relay end UE sends the broadcast messages to the receiving end UE, the receiving end UE receives the broadcast messages and then carries out target screening on the initial relay end UE to obtain a target relay end UE which is finally used for establishing communication connection between the sending end UE and the receiving end UE, secondary screening is carried out on the adjacent end UE, the number of times of broadcasting the messages to potential relay UE is reduced, the relay node determines to send the broadcast messages to the receiving node or not to send the broadcast messages to the receiving node according to the channel conditions, invalid broadcast messages are effectively screened, and system performance is improved.

Description

Method, system, device and medium for reducing relay node selection in V2X protocol

Technical Field

The present application relates to the field of wireless communications technologies, and in particular, to a method, a system, a device, and a medium for reducing relay node selection in a V2X protocol.

Background

The V2X protocol is a standard technology proposed by the 3GPP organization for a vehicle network in a URLLC scenario, and when data is to be transmitted between two UEs, but a receiving UE is not in the coverage of the transmitting UE, a relay UE is required to relay the data of the transmitting UE, and then the relay UE transmits the data of the transmitting UE to the receiving UE, so that the receiving UE can correctly receive the data.

However, the applicant finds that the UE1 broadcasts the Direct Communication Request message to the relay UEs, and each relay UE receives the message and then broadcasts the Direct Communication Request message to the UE2, at this time, if a large number of nodes are selected as relay UEs, the UE2 will receive a large number of Direct Communication Request messages, which may generate interference and affect the network performance. Especially in the urban road intersection, the receiving UE may not receive the complete Direct Communication Request message, and thus cannot determine which one is used as the relay, and this Communication cannot be completed. Therefore, the traditional message propagation mode has the problem that the performance is affected due to excessive interference information.

Disclosure of Invention

An object of the embodiments of the present application is to provide a method, a system, a device, and a medium for reducing relay node selection in a V2X protocol, so as to solve a problem that performance is affected due to excessive interference information in a conventional message propagation manner.

In order to solve the above technical problem, an embodiment of the present application provides a method for reducing relay node selection in a V2X protocol, which adopts the following technical solutions:

when a sending end UE needs to send a broadcast message to a receiving end UE which is not in the coverage range of the sending end UE according to a relay end UE, the sending end UE sends the broadcast message to all neighboring end UEs in the coverage range;

after the neighboring cell UE receives the broadcast message, the neighboring cell UE detects the channel quality data of the current communication;

the UE of the adjacent cell terminal performs initial screening operation on the UE of the adjacent cell terminal according to a preset channel quality threshold and the channel quality data to obtain initial relay terminal UE;

the initial relay terminal UE sends the broadcast message to the receiving terminal UE;

and the receiving end UE performs the target screening operation on the initial relay end UE according to the received broadcast message to obtain target relay end UE for establishing communication connection between the sending end UE and the receiving end UE.

In order to solve the above technical problem, an embodiment of the present application further provides a system for reducing relay node selection in a V2X protocol, which adopts the following technical solutions:

the method comprises the steps that a sending end UE, an adjacent end UE which is in communication connection with the sending end UE and a receiving end UE which is not in the coverage range of the sending end UE are obtained;

the sending end UE is used for sending the broadcast message to all neighboring end UEs in the coverage range when the sending end UE needs to send the broadcast message to the receiving end UE which is not in the coverage range of the sending end UE according to the relay end UE;

the neighboring cell end UE is used for detecting the channel quality data of the current communication after the neighboring cell end UE receives the broadcast message;

the neighboring cell UE is used for performing initial screening operation on the neighboring cell UE according to a preset channel quality threshold and the channel quality data to obtain initial relay terminal UE;

the initial relay terminal UE is used for sending the broadcast message to the receiving terminal UE;

and the receiving end UE is used for performing the target screening operation on the initial relay end UE according to the received broadcast message to obtain a target relay end UE for establishing communication connection between the sending end UE and the receiving end UE.

In order to solve the above technical problem, an embodiment of the present application further provides a computer device, which adopts the following technical solutions:

comprising a memory having stored therein computer readable instructions which, when executed by the processor, implement the steps of the V2X protocol reduction relay node selection method as described above.

In order to solve the above technical problem, an embodiment of the present application further provides a computer-readable storage medium, which adopts the following technical solutions:

the computer readable storage medium has stored thereon computer readable instructions which, when executed by a processor, implement the steps of the V2X protocol reduction relay node selection method as described above.

Compared with the prior art, the embodiment of the application mainly has the following beneficial effects:

the application provides a method for reducing relay node selection of a V2X protocol, which comprises the following steps: when a sending end UE needs to send a broadcast message to a receiving end UE which is not in the coverage range of the sending end UE according to a relay end UE, the sending end UE sends the broadcast message to all neighboring end UEs in the coverage range; after the neighboring cell UE receives the broadcast message, the neighboring cell UE detects the channel quality data of the current communication; the UE of the adjacent cell terminal performs initial screening operation on the UE of the adjacent cell terminal according to a preset channel quality threshold and the channel quality data to obtain initial relay terminal UE; the initial relay terminal UE sends the broadcast message to the receiving terminal UE; and the receiving end UE performs the target screening operation on the initial relay end UE according to the received broadcast message to obtain target relay end UE for establishing communication connection between the sending end UE and the receiving end UE. According to the method, when a sending end UE needs to send broadcast messages to a receiving end UE which is not in the coverage range, the adjacent end UE in the coverage range is screened according to the channel quality and the preset channel quality threshold value of the adjacent end UE to obtain an initial relay end UE with high channel quality, the initial relay end UE sends the broadcast messages to the receiving end UE, the receiving end UE receives the broadcast messages and then carries out target screening on the initial relay end UE to obtain a target relay end UE which is finally used for establishing communication connection between the sending end UE and the receiving end UE, secondary screening is carried out on the adjacent end UE, the number of times of broadcasting the messages to potential relay UE is reduced, the relay node determines to send the broadcast messages to the receiving node or not to send the broadcast messages to the receiving node according to the channel conditions, invalid broadcast messages are effectively screened, and system performance is improved.

Drawings

In order to more clearly illustrate the solution of the present application, the drawings needed for describing the embodiments of the present application will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.

FIG. 1 is an exemplary system architecture diagram in which the present application may be applied;

fig. 2 is a flowchart of an implementation of a method for reducing relay node selection according to the V2X protocol in an embodiment of the present application;

FIG. 3 is a flowchart of one embodiment of step S203 in FIG. 2;

FIG. 4 is a flowchart of one embodiment of step S205 of FIG. 2;

fig. 5 is a schematic structural diagram of a V2X protocol reduction relay node selection system according to an embodiment of the present application:

FIG. 6 is a schematic block diagram of one embodiment of a computer device according to the present application.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

As shown in fig. 1, the system architecture 100 may include

terminal devices

101, 102, 103, a network 104, and a server 105. The network 104 serves as a medium for providing communication links between the

terminal devices

101, 102, 103 and the server 105. Network 104 may include various connection types, such as wired, wireless communication links, or fiber optic cables, to name a few.

The user may use the

terminal devices

101, 102, 103 to interact with the server 105 via the network 104 to receive or send messages or the like. The

terminal devices

101, 102, 103 may have various communication client applications installed thereon, such as a web browser application, a shopping application, a search application, an instant messaging tool, a mailbox client, social platform software, and the like.

The

terminal devices

101, 102, 103 may be various electronic devices having a display screen and supporting web browsing, including but not limited to smart phones, tablet computers, e-book readers, MP3 players (Moving Picture Experts group audio Layer III, motion Picture Experts compression standard audio Layer 3), MP4 players (Moving Picture Experts group audio Layer IV, motion Picture Experts compression standard audio Layer 4), laptop portable computers, desktop computers, and the like.

The server 105 may be a server providing various services, such as a background server providing support for pages displayed on the

terminal devices

101, 102, 103.

It should be noted that the V2X protocol reduction relay node selection method provided in the embodiment of the present application is generally performed by a server/terminal device.

It should be understood that the number of terminal devices, networks, and servers in fig. 1 is merely illustrative. There may be any number of terminal devices, networks, and servers, as desired for implementation.

With continuing reference to fig. 2, a flowchart of an implementation of the V2X protocol reduction relay node selection method provided in this embodiment is shown, and for convenience of explanation, only the portions relevant to this application are shown.

The method for reducing relay node selection by the V2X protocol comprises the following steps:

in step S201, when the sending-end UE needs to send a broadcast message to a receiving-end UE that is not within the coverage of the sending-end UE according to the relay-end UE, the sending-end UE sends the broadcast message to all neighboring-end UEs within the coverage.

In this embodiment, the neighboring UE refers to other terminal devices UE in the communication range of the sending UE.

In this embodiment, the sending-end UE sends the broadcast message Direct Communication Request to all other terminal devices UE in the coverage area.

In step S202, after the neighboring UE receives the broadcast message, the neighboring UE detects channel quality data of current communication.

In this embodiment of the present application, after all the UEs in the neighboring cell receive the direct communication Request, the physical layer of the UE in the neighboring cell performs signal quality measurement to obtain the channel quality data.

In step S203, the neighboring UE performs an initial screening operation on the neighboring UE according to a preset channel quality threshold and channel quality data, so as to obtain an initial relay UE.

In the embodiment of the present application, the neighboring UE compares the channel quality data according to preset channel quality thresholds [ threshold1, threshold2], so as to remove neighboring UEs that do not meet the channel quality requirement, and leave initial relay UEs that meet the channel quality requirement.

In step S204, the initial relay UE transmits a broadcast message to the receiving UE.

In the embodiment of the present application, the initial relay UE that meets the channel quality requirement sends the broadcast message Direct Communication Request to the receiving UE.

In step S205, the receiving end UE performs a target screening operation on the initial relay end UE according to the received broadcast message, so as to obtain a target relay end UE for establishing communication connection between the sending end UE and the receiving end UE.

In the embodiment of the present application, the target screening operation may specifically be that the receiving end UE performs a quality measurement operation on the broadcast message to obtain initial relay end UE channel quality data; and screening a preset number of initial relay end UEs according to the initial relay end UE channel quality data, and taking the screened initial relay end UEs as target relay end UEs.

In an embodiment of the present application, a method for reducing relay node selection in a V2X protocol is provided, including: when a sending end UE needs to send a broadcast message to a receiving end UE which is not in the coverage range of the sending end UE according to a relay end UE, the sending end UE sends the broadcast message to all neighboring end UEs in the coverage range; after the neighboring cell UE receives the broadcast message, the neighboring cell UE detects the channel quality data of the current communication; the UE of the adjacent cell terminal performs initial screening operation on the UE of the adjacent cell terminal according to a preset channel quality threshold and the channel quality data to obtain initial relay terminal UE; the initial relay terminal UE sends the broadcast message to the receiving terminal UE; and the receiving end UE performs the target screening operation on the initial relay end UE according to the received broadcast message to obtain target relay end UE for establishing communication connection between the sending end UE and the receiving end UE. According to the method, when a sending end UE needs to send broadcast messages to a receiving end UE which is not in the coverage range, the adjacent end UE in the coverage range is screened according to the channel quality and the preset channel quality threshold value of the adjacent end UE to obtain an initial relay end UE with high channel quality, the initial relay end UE sends the broadcast messages to the receiving end UE, the receiving end UE receives the broadcast messages and then carries out target screening on the initial relay end UE to obtain a target relay end UE which is finally used for establishing communication connection between the sending end UE and the receiving end UE, secondary screening is carried out on the adjacent end UE, the number of times of broadcasting the messages to potential relay UE is reduced, the relay node determines to send the broadcast messages to the receiving node or not to send the broadcast messages to the receiving node according to the channel conditions, invalid broadcast messages are effectively screened, and system performance is improved.

Continuing to refer to fig. 3, a flowchart of one embodiment of step S203 of fig. 2 is shown, and for convenience of illustration, only the relevant portions of the present application are shown.

In some optional implementation manners of this embodiment, the step S203 specifically includes:

in step S301, the neighboring UE determines whether the channel quality data falls within a channel quality threshold;

in step S302, if the channel quality data is within the range of the channel quality threshold, the neighboring UE is used as the initial relay UE;

in step S303, if the channel quality data does not fall within the range of the channel quality threshold, the neighboring UE is not used as the initial relay UE.

Continuing to refer to fig. 4, a flowchart for implementing step S205 in fig. 2 is shown, and for convenience of illustration, only the portions relevant to the present application are shown.

In some optional implementation manners of this embodiment, the step S205 specifically includes:

in step S401, the receiving end UE performs quality measurement operation on the broadcast information to obtain initial relay end UE channel quality data.

In step S402, the receiving end UE filters a preset number of initial relay end UEs according to the initial relay end UE channel quality data, and uses the filtered initial relay end UEs as target relay end UEs.

The application is operational with numerous general purpose or special purpose computing system environments or configurations. For example: personal computers, server computers, hand-held or portable devices, tablet-type devices, multiprocessor systems, microprocessor-based systems, set top boxes, programmable consumer electronics, network PCs, minicomputers, mainframe computers, distributed computing environments that include any of the above systems or devices, and the like. The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware associated with computer readable instructions, which can be stored in a computer readable storage medium, and when executed, can include processes of the embodiments of the methods described above. The storage medium may be a non-volatile storage medium such as a magnetic disk, an optical disk, a Read-Only Memory (ROM), or a Random Access Memory (RAM).

It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

Example two

With further reference to fig. 5, as an implementation of the method shown in fig. 2, the present application provides an embodiment of a V2X protocol reduced relay node selection system, where the embodiment of the system corresponds to the embodiment of the method shown in fig. 2, and the system may be applied to various electronic devices in particular.

As shown in fig. 5, the V2X protocol reduction relay node selection system 500 of the present embodiment includes: the method comprises the steps that a sending end UE501, a neighboring end UE502 which is in communication connection with the sending end UE501 and a receiving end UE503 which is not in the coverage range of the sending end UE are obtained; wherein:

the sending end UE501 is configured to send a broadcast message to all neighboring end UEs 502 within a coverage range when the sending end UE501 needs to send the broadcast message to a receiving end UE503 not within the coverage range of the sending end UE501 according to the relay end UE;

the neighboring cell UE502 is configured to detect channel quality data of current communication after the neighboring cell UE502 receives the broadcast message;

the neighboring UE502 is configured to perform an initial screening operation on the neighboring UE502 according to a preset channel quality threshold and channel quality data to obtain an initial relay UE;

the initial relay terminal UE is configured to send a broadcast message to the receiving terminal UE 503;

and the receiving end UE503 is configured to perform a target screening operation on the initial relay end UE according to the received broadcast message, so as to obtain a target relay end UE for establishing communication connection between the sending end UE501 and the receiving end UE 503.

In the embodiment of the present application, the neighboring UE502 refers to other terminal devices UE in the communication range of the sending UE 501.

In this embodiment, the sending-end UE501 sends a broadcast message Direct Communication Request to all other terminal devices UE in the coverage area.

In this embodiment, after all the neighboring UE502 receives the broadcast message Direct Communication Request, the physical layer of the neighboring UE502 performs signal quality measurement to obtain the channel quality data.

In the embodiment of the present application, the neighboring UE502 compares the channel quality data according to preset channel quality thresholds [ threshold1, threshold2], so as to screen out neighboring UEs 502 that do not meet the channel quality requirement, and leave initial relay UEs that meet the channel quality requirement.

In the embodiment of the present application, the initial relay UE meeting the channel quality requirement sends a broadcast message Direct Communication Request to the receiving UE 503.

In the embodiment of the present application, the target screening operation may specifically be that the receiving end UE503 performs a quality measurement operation on the broadcast information to obtain initial relay end UE channel quality data; and screening a preset number of initial relay end UEs according to the initial relay end UE channel quality data, and taking the screened initial relay end UEs as target relay end UEs.

In an embodiment of the present application, a V2X protocol reduction relay node selection system is provided, including: the method comprises the steps that a sending end UE501, a neighboring end UE502 which is in communication connection with the sending end UE501 and a receiving end UE503 which is not in the coverage range of the sending end UE 501; wherein: the sending end UE501 is configured to send a broadcast message to all neighboring end UEs 502 within a coverage range when the sending end UE501 needs to send the broadcast message to a receiving end UE503 not within the coverage range of the sending end UE501 according to the relay end UE; the neighboring cell UE502 is configured to perform a quality measurement operation on the broadcast message after the neighboring cell UE502 receives the broadcast message, so as to obtain channel quality data; the neighboring UE502 is configured to perform an initial screening operation on the neighboring UE502 according to a preset channel quality threshold and channel quality data to obtain an initial relay UE; the initial relay terminal UE is configured to send broadcast information to the receiving terminal UE 503; and the receiving end UE503 is configured to perform target screening operation on the initial relay end UE according to the received broadcast information, so as to obtain a target relay end UE for establishing communication connection between the sending end UE501 and the receiving end UE 503. According to the method, when a sending end UE needs to send broadcast messages to a receiving end UE503 which is not in the coverage range of the sending end UE, the adjacent end UE502 in the coverage range is screened according to the respective channel quality and a preset channel quality threshold value to obtain an initial relay end UE with high channel quality, the initial relay end UE sends the broadcast messages to the receiving end UE503, the receiving end UE503 receives the broadcast messages and then carries out target screening on the initial relay end UE to obtain a target relay end UE which is finally used for establishing communication connection between the sending end UE and the receiving end UE503, secondary screening is carried out on the adjacent end UE502 to reduce the frequency of broadcasting messages to potential relay UEs, and the relay node decides to send the broadcast messages to the receiving node or not according to channel conditions, so that invalid broadcast messages are effectively screened, and system performance is improved.

In some optional implementation manners of this embodiment, the neighboring UE502 is further configured to determine whether the channel quality data belongs to a range of a channel quality threshold;

the neighboring UE502 is further configured to, if the channel quality data is within the range of the channel quality threshold, use the neighboring UE502 as an initial relay UE;

the neighboring UE502 is further configured to not use the neighboring UE502 as the initial relay UE if the channel quality data does not fall within the channel quality threshold.

In some optional implementation manners of this embodiment, the receiving end UE503 is further configured to perform quality measurement operation on the broadcast information to obtain channel quality data of the initial relay end UE;

the receiving end UE503 is further configured to screen a preset number of initial relay end UEs according to the initial relay end UE channel quality data, and use the screened initial relay end UEs as target relay end UEs.

In order to solve the technical problem, an embodiment of the present application further provides a computer device. Referring to fig. 6, fig. 6 is a block diagram of a basic structure of a computer device according to the present embodiment.

The computer device 200 includes a memory 210, a processor 220, and a network interface 230 communicatively coupled to each other via a system bus. It is noted that only computer device 200 having

components

210 and 230 is shown, but it is understood that not all of the illustrated components are required and that more or fewer components may alternatively be implemented. As will be understood by those skilled in the art, the computer device is a device capable of automatically performing numerical calculation and/or information processing according to a preset or stored instruction, and the hardware includes, but is not limited to, a microprocessor, an Application Specific Integrated Circuit (ASIC), a Programmable Gate Array (FPGA), a Digital Signal Processor (DSP), an embedded device, and the like.

The computer device can be a desktop computer, a notebook, a palm computer, a cloud server and other computing devices. The computer equipment can carry out man-machine interaction with a user through a keyboard, a mouse, a remote controller, a touch panel or voice control equipment and the like.

The memory 210 includes at least one type of readable storage medium including a flash memory, a hard disk, a multimedia card, a card type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a Read Only Memory (ROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a Programmable Read Only Memory (PROM), a magnetic memory, a magnetic disk, an optical disk, etc. In some embodiments, the storage 210 may be an internal storage unit of the computer device 200, such as a hard disk or a memory of the computer device 200. In other embodiments, the memory 210 may also be an external storage device of the computer device 200, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), or the like, provided on the computer device 200. Of course, the memory 210 may also include both internal and external storage devices of the computer device 200. In this embodiment, the memory 210 is generally used for storing an operating system and various types of application software installed on the computer device 200, such as computer readable instructions of the method for reducing relay node selection according to the V2X protocol. In addition, the memory 210 may also be used to temporarily store various types of data that have been output or are to be output.

The processor 220 may be a Central Processing Unit (CPU), controller, microcontroller, microprocessor, or other data Processing chip in some embodiments. The processor 220 is generally operative to control overall operation of the computer device 200. In this embodiment, the processor 220 is configured to execute computer readable instructions stored in the memory 210 or process data, for example, execute computer readable instructions of the V2X protocol reduction relay node selection method.

The network interface 230 may include a wireless network interface or a wired network interface, and the network interface 230 is generally used to establish a communication connection between the computer device 200 and other electronic devices.

In the computer device provided by the present application, when the sending UE needs to send a broadcast message to the receiving UE503 not in its coverage area, screening the respective neighboring cell UE by the neighboring cell UE within the coverage range according to the respective channel quality and a preset channel quality threshold to obtain an initial relay terminal UE with higher channel quality, and sends broadcast information to the receiving end UE through the initial relay end UE, the receiving end UE carries out target screening on the initial relay end UE after receiving the broadcast information to obtain target relay end UE which is finally used for establishing communication connection between the sending end UE and the receiving end UE, and the adjacent area end UE is secondarily screened, therefore, the frequency of broadcasting the message to potential relay UE is reduced, and the relay node decides to send the broadcast message to the receiving node or not according to the channel condition, thereby effectively screening invalid broadcast messages and further improving the system performance.

The present application further provides another embodiment, which is to provide a computer-readable storage medium storing computer-readable instructions executable by at least one processor to cause the at least one processor to perform the steps of the V2X protocol reduction relay node selection method as described above.

According to the computer-readable storage medium provided by the application, when a sending end UE needs to send a broadcast message to a receiving end UE which is not in the coverage range of the sending end UE, the adjacent end UE in the coverage range is screened according to the respective channel quality and a preset channel quality threshold value to obtain an initial relay end UE with higher channel quality, the initial relay end UE is used for sending the broadcast message to the receiving end UE, the receiving end UE is used for carrying out target screening on the initial relay end UE after receiving the broadcast message to obtain a target relay end UE which is finally used for establishing communication connection between the sending end UE and the receiving end UE, the adjacent end UE is subjected to secondary screening, so that the frequency of broadcasting the message to potential relay UE is reduced, and the relay node decides to send the broadcast message to or not send the broadcast message to the receiving node according to channel conditions so as to effectively screen invalid broadcast messages, thereby improving system performance.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims

1. A V2X protocol reduction relay node selection method, characterized in that the method comprises the following steps:

2. The method for reducing relay node selection according to the V2X protocol of claim 1, wherein the step of obtaining the initial relay node UE by the neighboring UE performing the initial screening operation on the neighboring UE according to a preset channel quality threshold and the channel quality data includes the following steps:

the UE of the neighboring cell judges whether the channel quality data belongs to the range of the channel quality threshold;

if the channel quality data belongs to the range of the channel quality threshold, taking the UE of the neighboring cell as the initial relay UE;

and if the channel quality data does not belong to the range of the channel quality threshold, not taking the UE of the neighboring cell as the initial relay UE.

3. The method as claimed in claim 1, wherein the step of the receiving UE performing the target screening operation on the initial relay UE according to the received broadcast message to obtain a target relay UE for establishing the communication connection between the sending UE and the receiving UE comprises the following steps:

the receiving end UE performs the quality measurement operation on the broadcast information to obtain initial relay end UE channel quality data;

and the receiving end UE screens a preset number of initial relay end UEs according to the initial relay end UE channel quality data, and uses the screened initial relay end UEs as the target relay end UEs.

4. A V2X protocol reduction relay node selection system, comprising:

5. The V2X protocol reduction relay node selection system of claim 4, wherein the neighboring UE is further configured to determine whether the channel quality data falls within the channel quality threshold;

the neighboring UE is further configured to, if the channel quality data falls within the range of the channel quality threshold, use the neighboring UE as the initial relay UE;

and the neighboring UE is further configured to not use the neighboring UE as the initial relay UE if the channel quality data does not fall within the range of the channel quality threshold.

6. The V2X protocol reduction relay node selection system of claim 4, wherein the receiving UE is further configured to perform the quality measurement operation on the broadcast information to obtain initial relay UE channel quality data;

the receiving end UE is further configured to screen a preset number of initial relay end UEs according to the initial relay end UE channel quality data, and use the screened initial relay end UEs as the target relay end UEs.

7. A computer device comprising a memory having computer readable instructions stored therein and a processor that when executed performs the steps of the V2X protocol reduction relay node selection method of any one of claims 1-3.

8. A computer readable storage medium having stored thereon computer readable instructions which, when executed by a processor, carry out the steps of the V2X protocol reduction relay node selection method of any one of claims 1 to 3.