Invention Grant
- Patent Title: Progressive feedback for high resolution limited feedback wireless communication
- Patent Title (中): 高分辨率有限反馈无线通信的逐行反馈
-
Application No.: US12434529Application Date: 2009-05-01
-
Publication No.: US08306146B2Publication Date: 2012-11-06
- Inventor: Robert Wendell Heath, Jr. , Tao Wu
- Applicant: Robert Wendell Heath, Jr. , Tao Wu
- Applicant Address: US TX Plano
- Assignee: FutureWei Technologies, Inc.
- Current Assignee: FutureWei Technologies, Inc.
- Current Assignee Address: US TX Plano
- Agency: Slater & Matsil, L.L.P.
- Main IPC: H04B15/00
- IPC: H04B15/00

Abstract:
A system and method is proposed for progressively quantizing channel state information for application in a MIMO (multiple input multiple output) communication system. A method includes computing an estimate of a communications channel between a subscriber unit and a base station, quantizing the estimate with a first codebook, thereby producing a first quantized estimate, quantizing an (n−1)-th quantized estimate with an n-th codebook, thereby producing an n-th quantized estimate, where n is an integer value ranging from 2 to R, R is a total number of quantizations of the estimate, wherein the n-th codebook is a localized codebook. The method also includes incrementing n, repeating the quantizing an (n−1)-th quantized estimate until n=R, and transmitting information based on the R quantized estimates to the base station.
Public/Granted literature
- US20090274230A1 Progressive Feedback For High Resolution Limited Feedback Wireless Communication Public/Granted day:2009-11-05
Information query