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.:
Date of Patent:
Nov. 18, 2008
Filed:
Dec. 14, 2004
Philippe Mege, Bourg la Reine, FR;
Christophe Molko, Villepreux, FR;
Frédéric Rosin, Saint Cyr l'ecole, FR;
Philippe Mege, Bourg la Reine, FR;
Christophe Molko, Villepreux, FR;
Frédéric Rosin, Saint Cyr l'ecole, FR;
EADS Secure Networks, Montigny le Bretonneaux, FR;
Abstract
A method of synchronization on the uplink channel of a Simulcast network with a plurality of fixed receivers (BS-BS) and a selection unit (), comprises the following steps. All the receivers are placed in a synchronization search mode (), in which they search for a synchronization pattern sent by the mobile terminal over the uplink channel. When a receiver detects the synchronization pattern, it produces an initial synchronization context (SC()), which indicates the delay of the radio signal relative to a time reference of the network, and transmits it () to the selection unit. The latter broadcasts it () to all the receivers that use it to start processing the radio signal. Then, each receiver maintains its synchronization context and transmits it (-) to the selection unit on each frame. At regular intervals, the value of an updated synchronization context (SC()) is broadcast () to the receivers. Advantage: the synchronization of a receiver which begins to receive the radio signal during a call or alternate turn is facilitated.