发明名称 Method and apparatus for estimating frequency deviation
摘要 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.
申请公布号 US8867443(B2) 申请公布日期 2014.10.21
申请号 US201013258448 申请日期 2010.11.17
申请人 ZTE Corporation 发明人 Qiu Ning;Li Qiang;Zeng Wenqi;Yu Tiankun;Liu Zhongwei;Xing Yannan;Liang Lihong;Li Liwen;Lin Feng;Chu Jintao
分类号 H04W56/00;H04B1/7087 主分类号 H04W56/00
代理机构 Ling and Yang Intellectual Property 代理人 Wu Ling;Yang Stephen;Ling and Yang Intellectual Property
主权项 1. A method for estimating frequency deviation, the method comprising the following steps that are performed by a user equipment (UE): 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; and 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; wherein, the local frequency domain synchronized code is a group of synchronized code sequences influenced by different frequency deviations.
地址 Shenzhen, Guangdong CN