Patent · US Active

System and method for communication session correlation

US8625602B2 · kind B2 · utility

2Cited by

1References

20Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Michael Jansson · Stockholm, SE
Ioannis Fikouras · Alsdorf, DE
Salvatore Loreto · Helsinki, FI
Elena Fersman · Uppsala, SE
Göran Eriksson · Hörby, SE
Roman Levenshteyn · Aachen, DE
Gonzalo Camarillo · Helsinki, FI

Key dates

Filing date	Jun 6, 2011
Grant date	Jan 7, 2014
Priority date	—
Expiry date	Feb 9, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04L27/2601
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

An arrangement and method in a communication system such as an Orthogonal Frequency Division Multiplexing (OFDM) radio receiver for reducing the impact of interference from an intermittent interfering signal transmitted by an interfering system which may be co-located with the OFDM system or may be remotely located. Each OFDM symbol in a received OFDM signal includes a guard interval (GI), a middle portion, and a last portion identical to the GI. The arrangement determines which portion of each OFDM symbol is contemporaneous with the interfering signal and time-shifts a fast Fourier transform (FFT) window in the OFDM receiver to minimize or eliminate FFT processing of samples of the OFDM symbol that are contemporaneous with the interfering signal, thereby minimizing the impact of the interfering signal.

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