Patent · US Active

Method and device for wireless communication using MIMO techniques

US7970355B2 · kind B2 · utility

2Cited by

0References

14Claims

0Family size

Assignee

Designart Networks Ltd · IL

Inventors

Oz Barak · Nes Ziona, IL
Assaf Touboul · Netanya, IL
Avner Dor · Kfar Sava, IL

Key dates

Filing date	Dec 4, 2007
Grant date	Jun 28, 2011
Priority date	—
Expiry date	Sep 18, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04B7/0854
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

The present invention describes a method of closed loop MIMO communication utilizing implicit or explicit channel state information (CSI) at the transmitter and the receiver. The transmitter performs linear pre-processing (for example, QR decomposition or bi-diagonal decomposition or Jacobi rotations, and/or sporadic SVDs) on a channel matrix, and the receiver mitigates the mutual interference between the streams by performing MMSE processing on the received signals. The MMSE matrix is computed with respect to the processed channel that may estimated by the receiver through preprocessed pilot signals. The transmitters preprocessing is of much lesser cost and complexity than full SVD.

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