Patent · US Active

Phase tracking system and method

US8345783B1 · kind B1 · utility

4Cited by

0References

18Claims

0Family size

Assignee

OLYMPUS CORPORATION · JP

Inventors

Dumitru Ionescu · Ann Arbor, US
Haidong Zhu · San Diego, US
Abu Amanullah · San Diego, US

Key dates

Filing date	Mar 31, 2011
Grant date	Jan 1, 2013
Priority date	—
Expiry date	Mar 31, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04L27/2691
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Phase tracking in an OFDM symbol comprises determining a sufficient statistic for CFO and SFO estimation from a differential metric between a current OFDM symbol and a previous OFDM symbol transmitted on the same frequency band. The sufficient statistics corresponding to positive pilot tones are combined with those corresponding to negative pilot tones to estimate the CFO and SFO.

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