Title:
CLOCK SYNCHRONIZATION METHOD, RADIO REMOTE UNIT, BUILDING BASE BAND UNIT AND BASE STATION
Document Type and Number:
WIPO Patent Application WO/2015/196696
Kind Code:
A1
Abstract:
Disclosed in the present invention are a clock synchronization method, radio remote unit, building base band unit and base station. The clock synchronization method comprises that: the radio remote unit receives BeiDou information sent from a BeiDou satellite, processes the BeiDou information and then exacts the BeiDou clock; the radio remote unit receives air interface frame frequency sent from the building base band unit; the radio remote unit uses the BeiDou clock as a reference clock to perform phase identification and clock lock with the air interface frame frequency, and obtains a first phase identification value; the radio remote unit returns to the building base band unit the first phase identification value and the frame number of the air interface frame frequency for clock synchronization. The method mainly uses the BeiDou clock as the reference clock to perform the clock synchronization between the radio remote unit and the building base band unit, and since the BeiDou system is a native developed system, the usage of the BeiDou clock will not cost too much, and thus reducing the cost of the clock synchronization between the radio remote unit and the building base band unit.
Inventors:
BAI WEIQI (CN)
LI YONGGUO (CN)
CHEN JIE (CN)
LI KANGWEI (CN)
MENG HAIFANG (CN)
DANG WEI (CN)
ZHAO FEIPENG (CN)
LI YONGGUO (CN)
CHEN JIE (CN)
LI KANGWEI (CN)
MENG HAIFANG (CN)
DANG WEI (CN)
ZHAO FEIPENG (CN)
Application Number:
PCT/CN2014/090635
Publication Date:
December 30, 2015
Filing Date:
November 07, 2014
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H04L7/00
Foreign References:
| CN101267251A | 2008-09-17 | |||
| CN103686990A | 2014-03-26 | |||
| CN102624512A | 2012-08-01 | |||
| CN102300311A | 2011-12-28 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
北京康信知识产权代理有限责任公司 (CN)
北京康信知识产权代理有限责任公司 (CN)
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