Patent · US Active

Frequency-offset estimation

US7899136B2 · kind B2 · utility

0Cited by

1References

27Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Holger Neuhaus · Birkenfeld, DE
Bertram Gunzelmann · Königsbrunn, DE
Michael Weber · Mainburg, DE

Key dates

Filing date	May 3, 2007
Grant date	Mar 1, 2011
Priority date	—
Expiry date	Dec 29, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2027/0067
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A device for calculating an overall frequency-offset estimate from a plurality of frequency-offset estimates includes a receiver unit configured to receive a plurality of data streams, a phase shift estimation unit configured to generate a phase shift quantity representative of a phase shift over a number of consecutive data samples in the respective data stream, and a phase shift processing unit coupled to the phase shift estimation unit and configured to calculate a quantity related to the signal-to-noise ratio associated with a data stream on the basis of the respective phase shift quantity. Further, the device includes a frequency-offset estimation unit configured to generate frequency-offset estimates associated with the respective data streams, and a combiner configured to calculate an overall frequency-offset estimate on the basis of the frequency-offset estimates and on the basis of the quantities related to the signal-to-noise ratios.

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