发明名称 |
Frequency-independent spatial processing for wideband MISO and MIMO systems |
摘要 |
<p>Frequency-independent eigensteering in MISO and MIMO systems are described. For principal mode and multi-mode eigensteering, a correlation matrix is computed for a MIMO channel based on channel response matrices and decomposed to obtain NS frequency-independent steering vectors for NS spatial channels of the MIMO channel. ND data symbol streams are transmitted on ND best spatial channels using ND steering vectors, where for ND=1 for principal mode eigensteering and ND>1 for multi-mode eigensteering. For main path eigensteering, a data symbol stream is transmitted on the best spatial channel for the main propagation path (e.g., with the highest energy) of the MIMO channel. For receiver eigensteering, a data symbol stream is steered toward a receive antenna based on a steering vector obtained for that receive antenna. For all eigensteering schemes, a matched filter is derived for each receive antenna based on the steering vector(s) and channel response vectors for the receive antenna.
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申请公布号 |
EP2299617(A3) |
申请公布日期 |
2012.05.30 |
申请号 |
EP20100011027 |
申请日期 |
2004.08.17 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
WALTON, J. RODNEY;KETCHUM, JOHN W.;HOWARD, STEVEN J.;WALLACE, MARK S. |
分类号 |
H04J99/00;H04L1/06;H04B7/04;H04B7/06;H04L1/00;H04L25/02;H04L27/26 |
主分类号 |
H04J99/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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