Patent · US Active

Steering matrix feedback for beamforming

US7570210B1 · kind B1 · utility

13Cited by

1References

41Claims

0Family size

Assignee

Marvell International Ltd. · BM

Inventors

Rohit U. Nabar · Sunnyvale, US
Hui-Ling Lou · Sunnyvale, US
Peter Loc · Cupertino, US

Key dates

Filing date	Jul 5, 2006
Grant date	Aug 4, 2009
Priority date	—
Expiry date	Jan 2, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH04B7/0626
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A network device includes a calibration module that receives a first channel state information (CSI) matrix from a link partner, that determines CSI based on radio frequency (RF) signals transmitted from the link partner, and that generates a second CSI matrix that includes the CSI for the RF signals. The network device includes a first steering module that determines a first steering matrix based on the first CSI matrix, a control module that adjusts beamforming weights based on the first steering matrix, and a second steering module that determines a second steering matrix based on the second CSI matrix and that transmits the second steering matrix to the link partner.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.