发明名称 |
MU-COMP CHANNEL STATE NORMALIZATION MEASURE QUANTIZATION AND TRANSMISSION |
摘要 |
<p>Uplink overhead is significantly reduced in a MU-COMP wireless communication network (10) by exploiting the dissimilarity of received signal strength in signals transmitted by geographically distributed transmit antennas (14, 16), as seen by receiving UEs (18, 20). Each UE (18, 20) calculates a quantized normalization measure of channel elements for a channel weakly received from a first transmitter (14, 16) to that for a channel strongly received from a second transmitter (14, 16). The quantized normalization measure may be modeled as a ratio of complex Gaussian variables, and quantized in phase and amplitude by making simplifying assumptions. The ratios are quantized, and transmitted to the network (10) using far fewer bits than would be required to transmit the full channel state information. The network (10) uses the quantized normalization measures to set the transmitter (14, 16) weights.</p> |
申请公布号 |
WO2010036159(A1) |
申请公布日期 |
2010.04.01 |
申请号 |
WO2008SE51071 |
申请日期 |
2008.09.24 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL);LARSSON, PETER;MIAO, QINGYU;GAN, JIANSONG |
发明人 |
LARSSON, PETER;MIAO, QINGYU;GAN, JIANSONG |
分类号 |
H04B7/04;H04B7/02;H04B7/06 |
主分类号 |
H04B7/04 |
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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