Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Reexamination Certificate
2005-11-01
2005-11-01
Pham, Chi (Department: 2667)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
Reexamination Certificate
active
06961352
ABSTRACT:
The invention relates to a method for synchronizing a radio terminal in a radio-communication network with a received signal flow comprising a predefined synchronization sequence repeated at predefined time intervals. According to the invention, the method consists in generating correlation profiles at the radio terminal by correlating a part of said signal flow with the synchronization sequence to reveal correlation peaks and accumulating as many correlation profiles as necessary, until a threshold level is reached by at least the largest correlation peak. The threshold level is updated, during the accumulation, depending on a background noise level estimated in the signal flow to dynamically determine if the synchronization sequence has been detected at the radio terminal.
REFERENCES:
patent: 5177740 (1993-01-01), Toy et al.
patent: 5524127 (1996-06-01), Petranovich
patent: 6304619 (2001-10-01), Citta et al.
patent: 0 601 629 (1994-06-01), None
patent: WO 00/33471 (2000-06-01), None
Bejjani Elie
Bouquier Jean-Francois
De Cacqueray Benoit
Sanchez Araujo Javier
Alcatel
Ly Anh-Vu H
Pham Chi
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