Invention Grant
US08817899B2 Method and system for an alternating delta quantizer for limited feedback MIMO pre-coders
有权
用于有限反馈MIMO预编码器的交替Δ量化器的方法和系统
- Patent Title: Method and system for an alternating delta quantizer for limited feedback MIMO pre-coders
- Patent Title (中): 用于有限反馈MIMO预编码器的交替Δ量化器的方法和系统
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Application No.: US13310872Application Date: 2011-12-05
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Publication No.: US08817899B2Publication Date: 2014-08-26
- Inventor: Mark Kent , Vinko Erceg , Jun Zheng , Uri Landau
- Applicant: Mark Kent , Vinko Erceg , Jun Zheng , Uri Landau
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Sterne Kessler Goldstein & Fox P.L.L.C.
- Main IPC: H04L27/28
- IPC: H04L27/28

Abstract:
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.
Public/Granted literature
- US20120076223A1 Method and System for an Alternating Delta Quantizer for Limited Feedback MIMO Pre-Coders Public/Granted day:2012-03-29
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