CLOCK SYNCHRONIZATION METHOD, RECEIVER, TRANSMITTER AND SYSTEM

Title:

CLOCK SYNCHRONIZATION METHOD, RECEIVER, TRANSMITTER AND SYSTEM

Document Type and Number:

WIPO Patent Application WO/2017/070930

Kind Code:

A1

Abstract:

Disclosed are a clock synchronization method, a receiver, a transmitter and a system. The method comprises: acquiring a common reference clock signal; determining Bt according to the common reference clock signal and Mrd(t-1); when Ct obtained through calculation according to the Mrd(t-1) is less than or equal to a threshold value, determining that the Mrd(t-1) is a target Mrd, wherein Ct = Bt - At, and At is contained in an RTS packet sent by a transmitter and most recently received by a receiver; by taking the target Mrd as a frequency division coefficient, performing frequency division on the common reference clock signal to obtain a first clock signal; and performing frequency multiplication processing on the first clock signal to obtain a service clock signal. By means of the method of the present invention, when packet loss occurs in a receiver, a phase of a service clock signal can be rapidly adjusted to be consistent with a phase of a service clock signal of a transmitter, so as to avoid the random drifting of the phase.

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Inventors:

XU CHUAN (CN)
CHEN CONG (CN)

Application Number:

PCT/CN2015/093354

Publication Date:

May 04, 2017

Filing Date:

October 30, 2015

Export Citation:

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Assignee:

HUAWEI TECH CO LTD (CN)

International Classes:

H04L7/00

Foreign References:

CN103905136A	2014-07-02
CN101686185A	2010-03-31
CN102957403A	2013-03-06

Other References: