发明公开
EP1109313A3 AFC apparatus and method used a in mobile communication system
有权
Afc-Vorrichtung und Verfahren in einem mobilen Kommunikationssystem
- 专利标题: AFC apparatus and method used a in mobile communication system
- 专利标题(中): Afc-Vorrichtung und Verfahren in einem mobilen Kommunikationssystem
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申请号: EP00127154.3申请日: 2000-12-12
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公开(公告)号: EP1109313A3公开(公告)日: 2003-10-15
- 发明人: Hirata, Masaru
- 申请人: NEC CORPORATION
- 申请人地址: 7-1, Shiba 5-chome, Minato-ku Tokyo JP
- 专利权人: NEC CORPORATION
- 当前专利权人: NEC CORPORATION
- 当前专利权人地址: 7-1, Shiba 5-chome, Minato-ku Tokyo JP
- 代理机构: Glawe, Delfs, Moll & Partner
- 优先权: JP35537599 19991215
- 主分类号: H03J7/02
- IPC分类号: H03J7/02 ; H04B1/707 ; H04B7/26
摘要:
An AFC control apparatus in mobile communication equipment includes a despreading unit (4), first integrator (5), and control section (10). The despreading section (4) despreads the reception signal. The first integrator (5) integrates despread outputs obtained by despreading, of pilot symbols contained in a pilot channel of the reception signal, N (N is a number of 2 or more) consecutive first symbols and N second symbols succeeding the N first symbols, and generates first and second integral outputs. The control section (10) detects any phase shift amount between the first and second integral outputs and controls the frequency of the local signal in accordance with the detected phase shift amount. An AFC control method and mobile communication equipment having the above apparatus and method are also disclosed.
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