发明授权
US08761281B2 Method and arrangement for adapting a signal in a wireless communications network
有权
用于在无线通信网络中调整信号的方法和装置
- 专利标题： Method and arrangement for adapting a signal in a wireless communications network
- 专利标题（中）： 用于在无线通信网络中调整信号的方法和装置
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申请号： US13379148申请日： 2009-06-29
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公开(公告)号： US08761281B2公开(公告)日： 2014-06-24
- 发明人: Robert Baldemair , Stefano Sorrentino
- 申请人： Robert Baldemair , Stefano Sorrentino
- 申请人地址： SE Stockholm
- 专利权人： Telefonaktiebolaget L M Ericsson (Publ)
- 当前专利权人： Telefonaktiebolaget L M Ericsson (Publ)
- 当前专利权人地址： SE Stockholm
- 代理机构： Patent Portfolio Builders PLLC
- 国际申请： PCT/SE2009/050826 WO 20090629
- 国际公布： WO2011/002355 WO 20110106
- 主分类号： H04K1/10
- IPC分类号： H04K1/10 ; H04L27/28
摘要：
According to an aspect of the present invention, the power efficiency of a precoded OFDM signal is improved by a method in a network node, e.g. a mobile terminal, for adapting a signal for multi-antenna transmission. In a first step, the network node receives at least a first parameter being related to the transmit power requirements of the network node. The network node then receives, a second parameter indicating a precoder W. In a further step, the network node determines a modified precoder {tilde over (W)}, having the same dimensions as W, using the precoder W and the at least first parameter; then, the network node adapts, the signal for multi-antenna transmission using the modified precoder {tilde over (W)}.
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