Patent · US Active

Method and apparatus for uplink multi-carrier transmit diversity

US9584208B2 · kind B2 · utility

1Cited by

1References

14Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Johan Bergman · Stockholm, SE
Johan Hultell · Solna, SE
Niklas Johansson · Uppsala, SE
Erik Larsson · Linköping, SE

Key dates

Filing date	Oct 12, 2010
Grant date	Feb 28, 2017
Priority date	—
Expiry date	Jul 4, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04L27/2626
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A method (400) and apparatus (300) for selecting one of a plurality of antennas (320, 322), on a UE (300) implementing transmit diversity in a multi-carrier wireless communication system, for the joint transmission of two or more uplink signals, each modulated onto a different carrier frequency, such as when the carriers share a power amplifier (314). The method (400) and apparatus (300) select an antenna (320, 322) based on channel conditions associated with the carriers, even when prior art transmit diversity methods provide conflicting antenna selection indications.

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