Patent · US Active

Technique and test signal for determining signal path properites

US9148234B2 · kind B2 · utility

4Cited by

3References

17Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Lars Sundström · Södra Sandby, SE
Jim Svensson · Lund, SE
Leif Wilhelmsson · Lund, SE

Key dates

Filing date	Jun 17, 2011
Grant date	Sep 29, 2015
Priority date	—
Expiry date	Oct 21, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04L27/2647
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A test signal for determining a frequency-dependent or any other property of a receiver path is proposed. The test signal comprises, in a time domain representation, a sequence of discrete states that may be periodically repeated and that gives rise to a plurality of discrete tones in a frequency domain representation of the test signal. The test signal can be utilized for determining a frequency-dependent imbalance (e.g., an IQ imbalance) between different signal branches of a receiver or transmitter.

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