发明名称 |
METHOD FOR PRE-EQUALIZING A DATA SIGNAL BY FDD TIME REVERSAL |
摘要 |
<p>Pre-equalizing a data signal transmitted in frequency division duplex by an originating entity having a set of originating antennas to a destination entity having a set of destination antennas, including: transmitting a first pilot by a destination antenna; the originating entity estimating a first impulse response of a first channel; an iterative step including an originating antenna transmitting a second pilot modulated by the first impulse response; the destination entity estimating and time reversing a combined impulse response of the first and second channels; the destination antenna transmitting a third pilot modulated by the time-reversed response; estimating a composite response of the channels; re-iterating the iterative step for some originating antennas; and re-iterating the steps of transmitting a first pilot, estimating the first response, and the iterative step for some destination antennas; and determining pre-equalization coefficients for the data signal from a combination of a set of composite impulse responses.</p> |
申请公布号 |
EP2427992(B1) |
申请公布日期 |
2014.10.29 |
申请号 |
EP20100727073 |
申请日期 |
2010.04.30 |
申请人 |
ORANGE |
发明人 |
PHAN HUY, DINH THUY;CHAUFRAY, JEAN-MARIE |
分类号 |
H04L5/14;H04B7/02;H04B7/04;H04B7/06;H04L1/00;H04L25/02;H04L25/03 |
主分类号 |
H04L5/14 |
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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