Patent · US Expired

Frequency error correction in a communication system

US7187743B2 · kind B2 · utility

2Cited by

8References

54Claims

0Family size

Assignee

Advanced Micro Devices, Inc. · US

Inventors

Eric Sachse · Leipzig, DE
Jörg Borowski · Dresden, DE
Ingo Kuhn · Dresden, DE

Key dates

Filing date	Dec 20, 2002
Grant date	Mar 6, 2007
Priority date	—
Expiry date	Jan 18, 2025

Classification

Technology area (CPC H)Electricity
CPC primaryH04L27/266
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A technique for performing a frequency error correction process is provided that may be used in receivers of wireless local area network systems. The technique comprises a three-phase process generating a frequency approximation value based on a frequency error estimate, starting a channel estimation process that uses the generated frequency approximation value, refining the generated frequency approximation value, and compensating a frequency error using the refined frequency approximation value. Further, a corresponding integrated circuit chip and an operation method are provided. Using the technique for performing a frequency error correction process may provide high reliability, high precision and improved operation speed.

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