Frame synchronization circuit

Details Frame synchronization circuit Frame synchronization circuit

2008-07-22

2008-07-22

Lee, Andrew C. (Department: 2616)

Multiplex communications

Diagnostic testing

Determination of communication parameters

C370S509000, C370S516000

Reexamination Certificate

active

07403489

ABSTRACT:
Disclosed is a mobile communication system including a network constituted of at least one switching center and a plurality of base stations, and a mobile station which communicates with the base stations simultaneously. The system permits varying transmission delay between the switching center and the base stations according to the type of services available to the mobile station. The object of the present invention is to propose a communication which permits varying transmission delay according to the type of service currently employed, and to promptly recover a synchronization state even if an out-of-sync state happens. To attain the object, a memory means (mobile switching center processor32) stores transmission delay characteristics corresponding to services which are available to the mobile station. Furthermore, a communication timing setting means (diversity handover trunk34) determines the timing of communication for the base stations according to the transmission delay characteristic selected according to the service.

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