发明公开
- 专利标题: PHASE CORRECTION FOR OFDM AND MIMO TRANSMISSIONS
- 专利标题(中): 相位校正的OFDM和MIMO传输
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申请号: EP07797663.7申请日: 2007-05-22
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公开(公告)号: EP2025116A2公开(公告)日: 2009-02-18
- 发明人: WALTON, J. Rodney , WALLACE, Mark S. , MEDVEDEV, Irina , HOWARD, Steven, J.
- 申请人: Qualcomm Incorporated
- 申请人地址: 5775 Morehouse Drive San Diego, CA 92121-1714 US
- 专利权人: Qualcomm Incorporated
- 当前专利权人: Qualcomm Incorporated
- 当前专利权人地址: 5775 Morehouse Drive San Diego, CA 92121-1714 US
- 代理机构: Carstens, Dirk Wilhelm
- 优先权: US802632P 20060522
- 国际公布: WO2007137281 20071129
- 主分类号: H04L27/26
- IPC分类号: H04L27/26 ; H04L27/00
摘要:
Techniques for performing phase correction for wireless communication are described. Received pilot symbols and received data symbols may be obtained from an orthogonal frequency division multiplexing (OFDM) and/or multiple-input multiple-output (MIMO) transmission. First phase information is obtained based upon the received pilot symbols. Second phase information is obtained based upon the received data symbols. The phase of the received data symbols is corrected based upon the first and second phase information (directly and/or indirectly). For example, the phase of the received data symbols may be corrected based upon the first phase information, detection may be performed on the phase corrected data symbols to obtain estimated data symbols, the second phase information may be obtained based upon the estimated data symbols, and the phase of the estimated data symbols may be corrected based upon the second phase information. The phase correction may also be performed in other manners.
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