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A method, device and system for short-distance communication

A short-distance communication and system information technology, applied in short-distance communication services, transmission systems, wireless communication, etc., can solve the problems of concurrent conflicts of multiple devices and the inability to complete the communication process effectively and quickly, so as to reduce communication interference and improve communication efficiency , The effect of improving the communication capacity

Active Publication Date: 2022-03-04
睿鑫科技(天津)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of intelligent traffic management and Internet of Vehicles technology, the roadside equipment (or roadside unit, RSU) and vehicle terminal (or vehicle terminal, On Board Unit, OBU) in the intelligent traffic management system adopt Short-distance communication is used to communicate, realize vehicle identity recognition, electronic toll deduction, realize non-parking, free card collection, and establish unattended vehicle passages. In the short-distance communication system currently used, when multiple OBUs communicate with one RSU When communicating, there will be conflicts of concurrent conflicts between multiple devices, and the communication process cannot be completed effectively and quickly

Method used

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  • A method, device and system for short-distance communication
  • A method, device and system for short-distance communication
  • A method, device and system for short-distance communication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] refer to Figure 1-Figure 3 As shown, a short-distance communication method provided by Embodiment 1 of the present invention includes:

[0057] S1: The roadside equipment RSU1 broadcasts the system information including the time slot configuration information according to the broadcast period through the broadcast control channel;

[0058] S2: The RSU1 receives the communication parameter setting information determined by the vehicle-mounted terminal OBU2 through a predetermined algorithm according to the received system information;

[0059] S3: The RSU1 establishes a communication link with the OBU at a selected time slot of a selected communication channel according to the received communication parameter setting information for communication. Thus, OBU2 and RSU1 communicate on the selected communication channel, and complete business processes such as information exchange and necessary control process.

[0060] In the short-distance communication method provided ...

Embodiment 2

[0085] refer to Figure 5 As shown, a roadside equipment RSU provided by Embodiment 2 of the present invention includes:

[0086] The first transceiver module 101 is used to broadcast system information including time slot configuration information through the broadcast control channel according to the broadcast cycle; receive the communication parameter setting information determined by the vehicle-mounted terminal OBU through a predetermined algorithm according to the received system information;

[0087] The first link establishment module 102 is configured to establish a communication link with the OBU at a selected time slot of a selected communication channel for communication according to the received communication parameter setting information.

[0088] In one embodiment, it may be that the first transceiver module 101 of the roadside equipment RSU is further configured to send a sleep instruction to the OBU after the communication of the OBU is completed, so that the ...

Embodiment 3

[0096] refer to Figure 7 As shown, a vehicle-mounted terminal OBU provided by Embodiment 3 of the present invention includes:

[0097] The second transceiver module 201 is used to receive the system information including time slot configuration information broadcast by the roadside equipment RSU through the broadcast control channel according to the broadcast cycle;

[0098] A determining module 202, configured to determine communication parameter setting information through a predetermined algorithm according to the received system information;

[0099] The second link establishing module 203 is configured to communicate with the RSU through the communication link established by the RSU in the selected time slot of the selected communication channel according to the received communication parameter setting information.

[0100] In one embodiment, it may be that the second transceiver module 201 of the on-board equipment OBU is also used for:

[0101] Receive the sleep comm...

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Abstract

The invention discloses a method for short-distance communication, comprising: a roadside equipment RSU broadcasts system information including time slot configuration information according to a broadcast period through a broadcast control channel; the RSU receives the system information received by the vehicle-mounted terminal OBU according to the received system information. , the communication parameter setting information determined by a predetermined algorithm; the RSU establishes a communication link with the OBU in the selected time slot of the selected communication channel according to the received communication parameter setting information to communicate with the OBU. The invention also discloses a roadside equipment RSU, a vehicle-mounted terminal OBU and a short-distance communication system. The invention solves the problem of concurrent conflict in the communication between the RSU and multiple OBUs during short-distance communication in the prior art.

Description

technical field [0001] The invention relates to a short-distance communication method, device and system. Background technique [0002] With the development of intelligent traffic management and Internet of Vehicles technology, the roadside equipment (or roadside unit, RSU) and vehicle terminal (or vehicle terminal, On Board Unit, OBU) in the intelligent traffic management system adopt Short-distance communication is used to communicate, realize vehicle identity recognition, electronic toll deduction, realize non-parking, free card collection, and establish unattended vehicle passages. In the short-distance communication system currently used, when multiple OBUs communicate with one RSU When communicating, there will be conflicts of concurrent conflicts between multiple devices, and the communication process cannot be completed effectively and quickly. [0003] Due to the large number of vehicles on the road, it is very common for an RSU to communicate with multiple OBUs. H...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L67/12H04W4/80H04W28/04H04W72/04H04W76/10
CPCH04L67/12H04W72/0446
Inventor 张丰津杜光政许雪峰张延华李萌
Owner 睿鑫科技(天津)有限公司