Patent · US Expired

Interference reduction in CCK modulated signals

US7130343B2 · kind B2 · utility

6Cited by

3References

53Claims

0Family size

Assignee

Advanced Micro Devices, Inc. · US

Inventors

Michael Schmidt · Dresden, DE
Eric Sachse · Leipzig, DE
Uwe Eckhardt · Dresden, DE

Key dates

Filing date	Sep 27, 2002
Grant date	Oct 31, 2006
Priority date	—
Expiry date	Nov 7, 2024

Classification

Technology area (CPC H)Electricity
CPC primaryH04W84/12
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A wireless local area network receiver is provided that has an interference reduction unit for reducing interchip interference in a received signal that is modulated using a complementary code keying technique such as CCK-11. The interference reduction unit comprises a decision feedback equalizer that has a feedforward filter for reducing precursor interference and a feedback filter for reducing postcursor interference in the received signal. The receiver may perform channel estimation to optimize the filter coefficients during the preambles of the incoming sequence.

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