Patent · US Active

Transmission power distribution for MIMO communications when multiplicative noise limited

US8891657B2 · kind B2 · utility

3Cited by

5References

37Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Jonas Medbo · Uppsala, SE
Henrik Asplund · Stockholm, SE
Mikael Coldrey · Landvetter, SE
Andreas Nilsson · Göteborg, SE
Mathias Riback · Danderyd, SE
Karl Werner · Stuvsta-Snättringe, SE

Key dates

Filing date	Dec 14, 2012
Grant date	Nov 18, 2014
Priority date	—
Expiry date	Feb 7, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04W52/42
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Throughput conditions limited by multiplicative noise may be improved by distributing a transmission power across MIMO data streams communicated between MIMO communication nodes. In particular, the transmission power is distributed based on knowledge at the transmitter of the MIMO channel to decrease the transmission power allocated to one or more of the data streams associated with a dominant signal path relative to the transmission power allocated to one or more data streams associated with a weaker signal path to increase at least one of a quality and a throughput condition of the MIMO channel.

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