Invention Grant
- Patent Title: System and method for multi-stage zero forcing beamforming in a wireless communications system
- Patent Title (中): 无线通信系统中多级零强制波束成形的系统和方法
-
Application No.: US12418476Application Date: 2009-04-03
-
Publication No.: US08351455B2Publication Date: 2013-01-08
- Inventor: Yang Tang , Young Hoon Kwon
- Applicant: Yang Tang , Young Hoon Kwon
- 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: H04J3/16
- IPC: H04J3/16 ; H04L12/26 ; H04L1/00

Abstract:
A system and method for multi-stage zero forcing beamforming in a wireless communications system is provided. A method includes receiving feedback information from each mobile station (MS) in a first plurality of mobile stations (MSs), selecting a first MS from the first plurality of MSs, and broadcasting information related to the first MS to the first plurality of MSs. The first MS having a largest value of a first metric based on the feedback information received from the first plurality of MSs. The method also includes receiving feedback information from each MS in a second plurality of MSs, selecting a second MS from the second plurality of MSs, and creating a precoding matrix from feedback information from the first MS and the second MS. The second MS having a largest value of a second metric based on the feedback information received from the second plurality of MSs.
Public/Granted literature
- US20090252091A1 System and Method for Multi-Stage Zero Forcing Beamforming in a Wireless Communications System Public/Granted day:2009-10-08
Information query