发明名称 Method for combining signals at wireless receivers in the absence of channel gain estimation and apparatus therefor
摘要 <p>This invention relates to a method for combining signals received by a diversity receiver means comprising at least two branches, said signals transmitting symbols through a multi-paths channel, comprising the steps of combining (4) the signals after their processing in individual branches and demodulating and detecting the transmitted symbols. Said method is remarkable in that said processing comprises a co-phasing step (2) consisting of estimating the phase changes induced by the channel at the received signal, with reference to the transmitted signal, and weighting of each signal by a co-phasing coefficient based on said estimation, with all received signals being co-phased, and an optimization step consisting of estimating the mean value and the variance of the signal to noise ratio at said branch, using sampling techniques, and the weighting (3) of the received signals by an optimization coefficient calculated from said mean value and variance. It also relates to said diversity receiver.</p>
申请公布号 EP2214326(A2) 申请公布日期 2010.08.04
申请号 EP20100152020 申请日期 2010.01.28
申请人 GR;GR;GR;GR 发明人 GR;GR;GR
分类号 H04B7/08;H04B1/707 主分类号 H04B7/08
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