发明名称 |
Downlink beamforming method |
摘要 |
<p>A method for downlink capacity enhancement in a wireless communications system comprising a base station with antenna array and terminals that are physically remote from said base station, the method comprising steps of: receiving at said base station antenna array combinations of arriving signals from said plurality of remote terminals; estimating an uplink channel covariance matrix (UCCM) for each of said terminals from said combinations of arriving signals; constructing from each of said UCCM a downlink channel covariance matrix (DCCM); calculating from all said DCCM a downlink weight vector for each of said terminals; and transmitting a set of information signals from said base station antenna array according to said downlink weight vectors. <IMAGE></p> |
申请公布号 |
EP1087545(A1) |
申请公布日期 |
2001.03.28 |
申请号 |
EP20000118876 |
申请日期 |
2000.08.31 |
申请人 |
NATIONAL UNIVERSITY OF SINGAPORE |
发明人 |
LIANG, YING CHANG;CHIN, FRANCOIS PO SHIN |
分类号 |
H04J15/00;H04B7/06;H04B7/26;H04Q7/36;(IPC1-7):H04B7/08 |
主分类号 |
H04J15/00 |
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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