电讯技术Issue(11)：1463-1467,5.DOI:10.3969/j.issn.1001-893x.2014.11.002
用于LTE MU-MIMO的标签迫零波束成形技术
Labeling-based Zero-forcing Beamforming for LTE MU-MIMO
摘要
Abstract
A smart MU-MIMO operation method in TD-LTE system is proposed,which combines the merits of both BF( Beamforming) and CL-MIMO( Closed Loop MIMO) . Once obtaining the estimated channel in-formation when receiving UL-SRS(Uplink Sounding Reference Signal) from UE,the eNB will quantify them as labels using pre-determined codebook in physical layer L1 . Then L1 conveys those chosen labels to L2 in which scheduler will use those labels for MU scheduling. It will well solve the two problems of zero-forcing UEs pairing and the cross-layer resource allocation procedure between L1 and L2. And finally,L1 will generate the BF precoding matrix without heavy computation. This paper proposes a general framework for the system implementation with anticipated sub-optimal performance. To reach the objectives,new de-sign criteria on codebook and quick algorithm for generation on precoding matrix are proposed.关键词
MU-MIMO/波束成形/迫零/码本设计标准Key words
MU-MIMO/beamforming/zero-forcing/codebook design criteria分类
信息技术与安全科学引用本文复制引用
赵松峄,张碧军..用于LTE MU-MIMO的标签迫零波束成形技术[J].电讯技术,2014,(11):1463-1467,5.
