Patent · US Active

Precoder weight selection for MIMO communications when multiplicative noise limited

US8842764B2 · kind B2 · utility

3Cited by

5References

35Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

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

Key dates

Filing date	Dec 14, 2012
Grant date	Sep 23, 2014
Priority date	—
Expiry date	Jan 16, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02D30/70
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

The method and apparatus disclosed herein improve throughput conditions limited by multiplicative noise by determining precoder weights for each data stream communicated between a MIMO transmitter node and a MIMO receiver node. The precoder weights are determined based on information derived from non-precoded reference symbols to decrease the energy allocated to the dominant signal path relative to the energy allocated to the non-dominant signal paths.

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