Patent · US Active

Method of correcting gain and phase imbalance of a multi-carrier transmission signal, transmitter and base station

US7885351B2 · kind B2 · utility

17Cited by

1References

6Claims

0Family size

Assignee

Alcatel Lucent · FR

Inventors

Thomas Bitzer · Villach, AT
Andreas Pascht · Welzheim, DE
Thomas B. Bohn · McHenry, US
Jens Strauss · Althengstett, DE

Key dates

Filing date	Jun 8, 2007
Grant date	Feb 8, 2011
Priority date	—
Expiry date	Aug 7, 2029

Classification

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

Abstract

Method of correcting a gain and phase imbalance of an analogue modulator (32) for multiple channels (CHi) of a multi-carrier transmission signal, the method comprising the steps of determining a gain imbalance correction factor (GCFi) and phase imbalance correction factor (PCFi) for each channel individually and applying said correction factors (GCFi, PCFi) to the corresponding channel (CHi) individually, before the multi-carrier synthesis of the channels is done, whereas step a) for each one of the multiple channels (CHi) is performed in a time-multiplexed manner with step a) for the other ones of the multiple channels (CHi).

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