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:
Oct. 21, 2014
Filed:
Nov. 17, 2010
Ning Qiu, Guangdong Province, CN;
Qiang LI, Guangdong Province, CN;
Wenqi Zeng, Guangdong Province, CN;
Tiankun Yu, Guangdong, CN;
Zhongwei Liu, Guangdong, CN;
Yannan Xing, Guangdong Province, CN;
Lihong Liang, Guangdong Province, CN;
Liwen LI, Guangdong Province, CN;
Feng Lin, Guangdong Province, CN;
Jintao Chu, Guangdong Province, CN;
Ning Qiu, Guangdong Province, CN;
Qiang Li, Guangdong Province, CN;
Wenqi Zeng, Guangdong Province, CN;
Tiankun Yu, Guangdong, CN;
Zhongwei Liu, Guangdong, CN;
Yannan Xing, Guangdong Province, CN;
Lihong Liang, Guangdong Province, CN;
Liwen Li, Guangdong Province, CN;
Feng Lin, Guangdong Province, CN;
Jintao Chu, Guangdong Province, CN;
ZTE Corporation, Shenzhen, Guangdong, CN;
Abstract
The invention provides a method and an apparatus for estimating frequency deviation, the method comprising: after receiving a sub-frame, transforming a downlink synchronized code of the sub-frame to a frequency domain, and performing a correlation operation between the transformed downlink synchronized code and a local frequency domain synchronized code to obtain a conjugate downlink synchronized code sequence; judging a location of a maximum value in the conjugate downlink synchronized code sequence, and calculating a frequency deviation value according to the location of the maximum value. The estimating method provided in the invention can realize a stable work with no need of a precise sampling value location, an accurate timing synchronization, or even obtaining the information for the multi-path distribution and locations.