Patent · US Active

Precoder design for combining high-end RF with constrained RF of massive MIMO antennas

US9979458B1 · kind B1 · utility

2Cited by

1References

19Claims

0Family size

Assignee

NOKIA SOLUTIONS AND NETWORKS OY · FI

Inventors

Rakesh Sivasivaganesan · Unterhaching, DE
Wolfgang Zirwas · Munich, DE
Berthold PANZNER · Holzkirchen, DE
Markus Staudacher · Munich, DE

Key dates

Filing date	Nov 18, 2016
Grant date	May 22, 2018
Priority date	—
Expiry date	Dec 15, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04W88/08
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A method includes mapping a signal desired by at least one receiver to a projection area based at least on a functionality corresponding to one or more first radio frequency chains coupled to a plurality of first antennas; selecting precoding coefficients for at least one of one or more second radio frequency chains coupled to a plurality of second antennas to generate a signal point within the projection area; and compensating for a difference between the generated signal point and the signal desired by the at least one receiver using at least one of the first radio frequency chains, wherein the second radio frequency chains have a reduced functionality relative to the functionality of the first radio frequency chains, and wherein the first and second set of antennas are different.

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