Patent · US Active

Receiver-side estimation of and compensation for signal impairments

US8971465B2 · kind B2 · utility

9Cited by

18References

20Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Nicola Varanese · Nuremberg, DE
Christian Pietsch · Nuremberg, DE
Juan Montojo · San Diego, US

Key dates

Filing date	Feb 7, 2013
Grant date	Mar 3, 2015
Priority date	—
Expiry date	Feb 7, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2027/0095
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A receiver receives a repeating or periodic signal and, based on the signal, estimates a carrier frequency offset for the receiver. Based on the signal and the estimated carrier offset, an I/Q mismatch for the receiver is estimated and compensation for the estimated I/Q mismatch is performed. After compensating for the estimated receiver I/Q mismatch, the carrier frequency offset is re-estimated.

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