发明公开
EP1213888A1 COMMUNICATION TERMINAL APPARATUS, BASE STATION APPARATUS, AND COMMUNICATION METHOD
有权
EINRICHTUNGFÜRVERMITTLUNGSENDGERÄT,UND VERMITTLUNGSVERFAHREN
- 专利标题: COMMUNICATION TERMINAL APPARATUS, BASE STATION APPARATUS, AND COMMUNICATION METHOD
- 专利标题(中): EINRICHTUNGFÜRVERMITTLUNGSENDGERÄT,UND VERMITTLUNGSVERFAHREN
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申请号: EP01951940.4申请日: 2001-07-19
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公开(公告)号: EP1213888A1公开(公告)日: 2002-06-12
- 发明人: MIYOSHI, Kenichi , HIRAMATSU, Katsuhiko
- 申请人: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 申请人地址: 1006, Oaza-Kadoma Kadoma-shi, Osaka 571-8501 JP
- 专利权人: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 当前专利权人: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 当前专利权人地址: 1006, Oaza-Kadoma Kadoma-shi, Osaka 571-8501 JP
- 代理机构: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
- 优先权: JP2000225171 20000726
- 国际公布: WO0209377 20020131
- 主分类号: H04L27/00
- IPC分类号: H04L27/00 ; H04B7/26
摘要:
PL demodulation section 203 demodulates pilot signals of a received signal. SIR detection section 205 detects the reception quality of the demodulated pilot signals. fd detection section 206 detects a Doppler frequency using the demodulated pilot signals. Requested modulation method deciding section 207 decides a modulation method to be requested to the base station using the reception quality of pilot signals and the detected Doppler frequency. Command generation section 208 generates a command corresponding to the decided modulation method. Adaptive demodulation section 204 performs demodulation processing on the received signal using the demodulation method corresponding to the modulation method decided by requested modulation method deciding section 207. This makes it possible to maintain good reception quality even in a fading environment.
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