The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9413580 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 09, 2016

Filed:

Sep. 17, 2013
Applicant:

St-ericsson SA, Plan-les-Ouates, CH;

Inventor:

Achraf Dhayni, Vallauris, FR;

Assignee:

ST-ERICSSON SA, Plan-les-Ouates, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 7/00 (2006.01); H04L 27/26 (2006.01); H04L 25/03 (2006.01);
U.S. Cl.
CPC ...
H04L 27/2665 (2013.01); H04L 25/03159 (2013.01); H04L 27/2662 (2013.01); H04L 27/2672 (2013.01); H04L 27/2675 (2013.01); H04L 27/2682 (2013.01); H04L 2025/03414 (2013.01);
Abstract

Receiver (RCV) adapted for compensating for Symbol Timing Offset when receiving OFDM symbols, over a communication channel (TC), comprising: means (REG, DFT, CMP) for detecting a first phase with no Inter-Symbol Interference, means (REG, DFT, CMP) for detecting a second phase with presence of Inter-Symbol Interference, means (REG, DFT, CMP) for compensating for said Symbol Timing Offset by estimating starting points of said received OFDM symbols as being one sample before the start of said second phase. The timing synchronization is achieved in frequency domain by monitoring amplitude variation of the demodulated subcarriers symbols, said variation being due to the presence of Inter Symbol Interference when the FFT window overlaps with the subsequent OFDM symbol.


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