发明申请
US20120076223A1 Method and System for an Alternating Delta Quantizer for Limited Feedback MIMO Pre-Coders
有权
用于有限反馈MIMO预编码的交替Delta量化器的方法和系统
- 专利标题: Method and System for an Alternating Delta Quantizer for Limited Feedback MIMO Pre-Coders
- 专利标题(中): 用于有限反馈MIMO预编码的交替Delta量化器的方法和系统
-
申请号: US13310872申请日: 2011-12-05
-
公开(公告)号: US20120076223A1公开(公告)日: 2012-03-29
- 发明人: Mark Kent , Vinko Erceg , Jun Zheng , Uri Landau
- 申请人: Mark Kent , Vinko Erceg , Jun Zheng , Uri Landau
- 主分类号: H04K1/10
- IPC分类号: H04K1/10
摘要:
Aspects of a method and system for an alternating delta quantizer for limited feedback MIMO pre-coders may comprise quantizing a change in channel state information in a MIMO pre-coding system onto at least a first and a second codebook, each of which comprises one or more unitary matrices, using a cost function; feeding back, in an alternating manner, an index to an element of at least the first codebook or the second codebook, associated with the quantizing, from a receiver to a transmitter in said MIMO pre-coding system, and generating the at least first and second codebook based on at least the channel state information. The channel state information may be a matrix V and the cost function may be defined by the following relationship: f ( A ) = ( 1 N ∑ j = 1 N a jj 2 ) where A is a matrix of size N by N and aij is element (i,j) of matrix A.
公开/授权文献
信息查询