发明申请
- 专利标题: TRANSMITTING APPARATUS, RECEIVING APPARATUS, AND WIRELESS COMMUNICATION METHOD
- 专利标题(中): 发送装置,接收装置和无线通信方法
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申请号: US11813722申请日: 2005-12-27
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公开(公告)号: US20090046787A1公开(公告)日: 2009-02-19
- 发明人: Mitsuru Uesugi , Eiji Ota , Atsushi Sumasu , Keisuke Ebiko
- 申请人: Mitsuru Uesugi , Eiji Ota , Atsushi Sumasu , Keisuke Ebiko
- 申请人地址: JP OSAKA
- 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: JP OSAKA
- 优先权: JP2005-013162 20050120; JP2005-051204 20050225; JP2005-073366 20050315
- 国际申请: PCT/JP2005/023974 WO 20051227
- 主分类号: H04L27/28
- IPC分类号: H04L27/28
摘要:
A transmitting apparatus, a receiving apparatus and a wireless communication method for suppressing interference between codes, while further reducing the ratio of redundant components occupying a signal to improve the transmission efficiency. The transmitting apparatus (100) transmits a signal having a frame structure in which a plurality of symbols follow a pilot symbol to which a guard interval has been added. In the receiving apparatus (200) that receives that signal, a long FFT target section acquiring part (202) acquires, from the received OFDM signal, a long FFT target section that is a target section in which delay waves are to be removed by use of a pilot symbol. A long FFT part (203) performs a fast Fourier transformation of the long FFT target section to convert it to a frequency domain signal. A frequency equalizing part (204) performs a frequency equalization of the long FFT target section by use of an interpolation result of communication line estimation value. A long IFFT part (205) performs an inverse fast Fourier transformation of the long FFT target section as frequency equalized to convert it back to a time domain signal.
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