- 专利标题: METHOD AND APPARATUS FOR CONTINUOUS BEAMFORMING FOR A MIMO-OFDM SYSTEM
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申请号: EP16173852.1申请日: 2005-04-29
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公开(公告)号: EP3110096B1公开(公告)日: 2018-09-12
- 发明人: HOWARD, Steven J. , WALTON, Jay Rodney , WALLACE, Mark S.
- 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: Wegner, Hans
- 优先权: US569103P 20040507; US576719P 20040602; US578656P 20040609; US50897 20050203
- 主分类号: H04L27/26
- IPC分类号: H04L27/26 ; H04B7/06
摘要:
A transmitting entity performs spatial processing on data symbols for each subband with an eigenmode matrix, a steering matrix, or an identity matrix to obtain spatially processed symbols for the subband. The data symbols may be sent on orthogonal spatial channels with the eigenmode matrix, on different spatial channels with the steering matrix, or from different transmit antennas with the identity matrix. The transmitting entity further performs beamforming on the spatially processed symbols, in the frequency domain or time domain, prior to transmission from the multiple transmit antennas. A receiving entity performs the complementary processing to recover the data symbols sent by the transmitting entity. The receiving entity may derive a spatial filter matrix for each subband based on a MIMO channel response matrix for that subband and perform receiver spatial processing for the subband with the spatial filter matrix.
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