The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2014
Filed:
Sep. 24, 2012
Huawei Technologies Co., Ltd., Guangdong, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A clock synchronization method, apparatus, and system are provided according to the embodiments of the present invention. The method includes: receiving time information TMfrom a central office side, in which the time information TMis obtained by the central office side by reading a local clock of the central office side when transmission data at a first designated location starts to be transferred, and the local clock of the central office side is synchronous with a Global Positioning System (GPS) clock or a Building Integrated Timing Supply (BITS) clock; determining whether transmission data at a second designated location starts to be received, if so, reading a local clock of the Customer Premises Equipment side to obtain time information TS; and synchronizing a clock frequency of the Customer Premises Equipment side to the central office side according to the time information TMand the time information TS