IP Library Granted Patent US 8,217,834
Granted Patent B2
US 8,217,834 · App. 12/499,635 · Granted Jul 10, 2012

System and method for beamforming in a wireless communication system

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,217,834
App. No.
12/499,635
Granted
Jul 10, 2012
Kind
B2
Abstract

The method for beamforming in a wireless communication system comprises the steps of: receiving a sounding packet so as to estimate channel state information between a transmitter and a receiver; generating a beamforming matrix in accordance with the channel state information; generating a beamforming steering matrix by multiplying the beamforming matrix by a rotation matrix; and feeding back the beamforming steering matrix.

Claims (8)

1. A method for beamforming in a wireless communication system, comprising the steps of:

receiving a sounding packet so as to estimate channel state information;

generating a beamforming matrix in accordance with the channel state information;

generating a beamforming steering matrix by multiplying the beamforming matrix by a rotation matrix; and

feeding back the beamforming steering matrix.

2. The method of claim 1 , wherein the beamforming matrix is generated in accordance with a singular value decomposition.

3. The method of claim 1 , wherein the rotation matrix is generated in accordance with an optimized signal-to-noise ratio (SNR) and a previous SNR.

4. The method of claim 1 , wherein the rotation matrix is a diagonal matrix generated in accordance with a singular value decomposition.

Assignments (2)
MERGER Recorded Sep 19, 2014
From: RALINK TECHNOLOGY CORPORATION
To: MEDIATEK INC.
Reel/Frame 033781/0192 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 8, 2009
From: WEN, CHUN HSIEN; CHEN, JIUNN TSAIR; WU, CHENG HSUAN; LIAO, YEN CHIN
To: RALINK TECHNOLOGY CORPORATION
Reel/Frame 022933/0216 →