公开(公告)号：US20110268208A1

公开(公告)日：2011-11-03

申请号：US13120010

申请日：2008-09-24

申请人： Peter Larsson ,  Jiansog Gan ,  Qingyu Miao

发明人： Peter Larsson ,  Jiansog Gan ,  Qingyu Miao

IPC分类号： H04B7/02

CPC分类号： H04B7/022 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0658 ,  H04B17/318

摘要： Uplink overhead is significantly reduced in a MU-COMP wireless communication network by exploiting the dissimilarity of received signal strength in signals transmitted by geographically distributed transmit antennas, as seen by receiving UEs. Each UE calculates a quantized normalization measure of channel elements for a channel weakly received from a first transmitter to that for a channel strongly received from a second transmitter. 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 using far fewer bits than would be required to transmit the full channel state information. The network uses the quantized normalization measures to set the transmitter weights.

摘要翻译： MU-COMP无线通信网络中的上行链路开销明显减少，这是通过接收UE所看到的，利用地理分布式发射天线发射的信号中接收信号强度的不相似性。 每个UE计算对于从第一发射机弱接收的信道的信道单元的量化归一化度量，以及对于从第二发射机强烈接收的信道。 量化归一化测量可以通过简化假设来建模为复数高斯变量的比率，并以相位和幅度量化。 这些比率被量化，并且使用比传输全通道状态信息所需的位少得多的比特来传送到网络。 网络使用量化的归一化度量来设置发射机的权重。