Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Reexamination Certificate
2007-12-04
2007-12-04
Pham, Chi (Department: 2616)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
C307S402000
Reexamination Certificate
active
10069545
ABSTRACT:
Method to synchronize at least one mobile unit to at least one base transceiver station belonging to a digital telecommunication network, in which radio signals transmitted and received by said base station are subdivided in frames (Fn) having pre-determined duration and each frame is subdivided in a pre-determined number of timeslots (Tn) and codes (Cn), said signals including at least a synchronization signal (S), which is transmitted by the base transceiver station and includes a sequence of modulation elementary units suitable to identify the timeslot (T1) and the code (C1) of a service channel containing system messages (M), said method including the following operational steps:marking the synchronization signal (S) in at least one frame (Fx) by the base transceiver station;transmitting a pointer message (P) in the service channel of said frame (Fx) or of a subsequent frame (Fx+n) by the base transceiver station;detecting the marked synchronization signal (S′) by the mobile unit;receiving the pointer message (P) by the mobile unit;extracting from the pointer message (P) the position of at least one system message (M′) by the mobile unit.The present invention relates also to a system implementing this method.
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De Angeli Alfonso
De Benedittis Rossella
Marnoni Luca
Siemens Information and Communication Networks S.p.A.
Tran Phuc
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