Patent · US Expired

Base transceiver station with distortion compensation

US6873860B2 · kind B2 · utility

6Cited by

6References

26Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Uwe Hildebrand · Ergolding, DE
Michael Jeck · Mainz, DE
Thomas Unshelm · Vallentuna, SE

Key dates

Filing date	Nov 20, 2001
Grant date	Mar 29, 2005
Priority date	—
Expiry date	Feb 10, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH04B1/40
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A base transceiver station for a radio communication system comprises a transmitter unit (TU), a receiver unit (RU) and a transmit path between the transmitter unit (TU) and an antenna. The receiver unit (RU) determines output data from received signals and the transmitter unit (TU) converts input data into transmitted signals and pre-distorts the transmitted signals using at least one compensation value. The base transceiver station comprises also a branching unit for transferring at least a portion of a transmitted signal from the transmit path to the receiver unit (RU) and a processing unit (PU) which is adapted to receive a representation of the input data and the output data. The processing unit (PU) compares the input data to the output data, determines a first compensation value for the pre-distortion according to the comparison and updates the compensation value of the transmitter unit (TU) with the first compensation value. Methods and computer programs embodying the invention are also described.

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