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Method, apparatus and system for signal synchronization

A technology of signal synchronization and synchronization source, which is applied in synchronization devices, services based on specific environments, wireless communication, etc., can solve problems such as vehicle-to-vehicle communication interruptions, achieve the effect of reducing communication interruptions and improving communication performance

Active Publication Date: 2022-07-29
HUAWEI TECH CO LTD
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Problems solved by technology

However, in the existing method of vehicle-to-vehicle signal synchronization, the communication between vehicles may be interrupted due to synchronization source switching.

Method used

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  • Method, apparatus and system for signal synchronization
  • Method, apparatus and system for signal synchronization
  • Method, apparatus and system for signal synchronization

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Embodiment Construction

[0197] The technical solutions in the present application will be described below with reference to the accompanying drawings.

[0198] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), worldwide interoperability for microwave access (WiMAX) communication systems, future 5th generation (5G) systems, new radio (NR), device to device (D2D) ) system, car networking system or future network, etc. The technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system.

[0199] The terminal equipment (terminal equipment) in the embodiments of the present application may refer to an access terminal, a subscriber unit, a subscriber station,...

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Abstract

The present application provides a method, apparatus and system for signal synchronization. The method for signal synchronization includes: the self-synchronized first terminal device broadcasts the first synchronization information, and when receiving the second synchronization information sent by the second terminal device, judging whether the first terminal device and the second terminal device are not After the signal has been synchronized, it is determined whether to synchronize to the second terminal device according to the judgment result. Therefore, the probability of occurrence of communication interruption caused by the switching of the synchronization source by the first terminal device after the second terminal device has been synchronized with the first terminal device as the synchronization source is reduced. The method for signal synchronization can be applied to scenarios such as intelligent driving, intelligent networked vehicles, and Internet of Vehicles.

Description

technical field [0001] The present application relates to the field of intelligent connected vehicles (ICV), and more particularly, to a method, apparatus and system for signal synchronization. Background technique [0002] The communication methods in the vehicle to everything (V2X) system are collectively referred to as V2X communication (X stands for anything). For example, V2X communication includes: vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication, vehicle to pedestrian (vehicle to pedestrian) communication , V2P) or vehicle to network (V2N) communication, etc. Communication between terminal devices involved in a V2X system is widely referred to as side link (slidelink, SL) communication. [0003] It should be understood that the premise that the vehicle and the vehicle can communicate based on the PC5 interface is that the vehicle and the vehicle realize signal synchronization. However, in the existing vehicle-to-vehicle method f...

Claims

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Application Information

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IPC IPC(8): H04W56/00H04W4/40
CPCH04W56/0015H04W92/18H04W4/46
Inventor 杨志武张东风刘凯胡铁根欧阳国威
Owner HUAWEI TECH CO LTD
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