Patent · US Active

Method of and a device for precoding transmit data signals in a wireless MIMO communication system

US8483310B2 · kind B2 · utility

15Cited by

0References

15Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Mikael Coldrey · Landvetter, SE
Fredrik Athley · Lindome, SE
Ulf Lindgren · Mörbylånga, SE
Sven Petersson · Svenstavik, SE

Key dates

Filing date	Feb 25, 2008
Grant date	Jul 9, 2013
Priority date	—
Expiry date	Jan 1, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04B7/0617
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A method of and a precoding device and a communication device for precoding transmit data signals in a wireless Multiple-Input Multiple-Output, MIMO, channel transmission scheme for maximizing channel capacity of the MIMO system given available amounts of transmit power. The precoding is expressed in a complex precoding matrix (W), which is calculated involving individual transmit power constraints of the multiple outputs (71, . . . , 7t) of the MIMO channel. The individual transmit power constraints are comprised of predetermined individual output transmit power amplifier (PA1, . . . , PAt) limitations.

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