Method for performing communication between vehicle terminals and equipment

Abstract

The embodiment of the present invention provides a method and equipment for communication between vehicle terminals, including: the first base station receives the vehicle safety information reported by the vehicle terminal; according to the set maximum communication distance between the vehicle terminals, the shared information cell: carry the identification of the determined shared information cell in the vehicle safety information and send it to the second base station to which each cell belongs in the shared information cell, so that the second base station broadcasts the vehicle safety information to the shared information cell. A vehicle terminal in a cell within the coverage area of ​​the second base station. The solution of the embodiment of the present invention reduces the transmission delay of vehicle safety information to a large extent, and ensures that the vehicle terminal within the set maximum communication distance from the vehicle terminal can receive the vehicle safety information in a timely manner, that is, the vehicle safety information is satisfied. Application requirements for terminal communication.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method and equipment for communication between vehicle terminals. Background technique [0002] The Internet of Vehicles communication system is based on wireless communication technology to obtain vehicle and road information, and realize intelligent coordination and cooperation between vehicles and infrastructure through vehicle-vehicle and vehicle-road information interaction and sharing, so as to optimize the use of system resources and improve road traffic safety. , a system for the purpose of alleviating traffic congestion. [0003] The application requirements of the above-mentioned Internet of Vehicles communication system for vehicle terminal communication with high-speed movement and dynamic changes in relative position are: the vehicle terminal can obtain the vehicle safety information of all vehicle terminals within a certain communication dista...

AI Technical Summary

Problems solved by technology

[0007] The inventor found that, in the broadcast / multicast communication mode, on the one hand, the communication distance between vehicles is not considered in the delineation of the broadcast range, which largely cannot ensure that the vehicle terminal can receive all the vehicle terminals within the communication distance. terminal security information; on the other hand, because the vehicle terminal information needs to be sent to the core network, and the S1 (communication interface between the base station and the packet core network) interface and the M1 interface (the interface between the base station and the MBMSGW) are introduced, this There will be a large time delay, so that the vehicle terminal cannot obtain the information of other vehicle terminals in time, so it cannot meet the application requirements of vehicle terminal communication

[0008] From the above discussion, it can be seen that neither the unicast communication mode nor the broadcast / multicast communication mode of the existing cellular network can meet the above-mentioned application requirements of the Internet of Vehicles, and it is necessary to propose a communication method between vehicle terminals to meet the application requirements of the Internet of Vehicles

Images