发明授权
- 专利标题： Wireless base station apparatus, frequency deviation detecting method, and mobile communication system
- 专利标题（中）： 无线基站装置，频偏检测方法和移动通信系统
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申请号： US12839010申请日： 2010-07-19
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公开(公告)号： US08259654B2公开(公告)日： 2012-09-04
- 发明人: Satoshi Kobori , Noriyuki Kawaguchi
- 申请人： Satoshi Kobori , Noriyuki Kawaguchi
- 申请人地址： JP Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JP Kawasaki
- 代理机构： Murphy & King, P.C.
- 主分类号： H04W4/00
- IPC分类号： H04W4/00 ; H04B1/00
摘要：
A wireless base station apparatus includes a path detecting unit configured to detect a preamble signal sent from a terminal and obtain a back-diffusion timing; a back-diffusion unit configured to execute back-diffusion processing on a message signal sent from the terminal, by using the back-diffusion timing reported from the path detecting unit; and a calculating unit configured to calculate a frequency deviation of the message signal that has been subjected to the back-diffusion processing, based on a pilot signal of the message signal that has been subjected to the back-diffusion processing. The path detecting unit includes an information detecting unit configured to detect a frequency deviation of the preamble signal when detecting the preamble signal and supply the frequency deviation of the preamble signal to the calculating unit as initial value information. The calculating unit includes an information adding unit that calculates the frequency deviation of the message signal by using the initial value information.