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Patent Searching and Data


Title:
SYNCHRONIZATION METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/077289
Kind Code:
A1
Abstract:
Disclosed are a synchronization method and device. The method comprises: firstly, a device labeling, according to a predetermined cycle, a periodic code block in a data code stream sent by a MAC layer to a PHY layer; then, sending the data code stream to an opposite device by means of the PHY layer; and recording the sending time of each periodic code block as a first timestamp during sending, and returning the first timestamp to the MAC layer. That is, the device sets, on the PHY layer, a time reference scale (i.e. the first timestamp) based on the PHY layer by means of adding a timestamp to a periodic code block received from the MAC layer; and if a synchronization message needs to be sent to the opposite device, since the time reference scale is a timestamp added to the PHY layer, the device can calculate, by means of the time reference scale, a time point (i.e. adding a sending timestamp) at which the synchronization message is substantially sent from the PHY layer in real time, such that the time point at which the synchronization message is sent from the PHY layer can be obtained, thereby eliminating a time delay of the PHY layer and improving the precision of the sending timestamp of the synchronization message (for example, message 1588).

Inventors:
LIU YONGZHI (CN)
LIN TAO (CN)
LIU JIANQIANG (CN)
YUAN CHUN (CN)
Application Number:
PCT/CN2019/112487
Publication Date:
April 29, 2021
Filing Date:
October 22, 2019
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04J3/06
Foreign References:
CN104113517A2014-10-22
CN102783078A2012-11-14
CN101814984A2010-08-25
KR20090039071A2009-04-22
Attorney, Agent or Firm:
SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)
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