Cell timing distribution mechanism

Details Cell timing distribution mechanism Cell timing distribution mechanism

2005-03-04

2008-11-04

Eng, George (Department: 2617)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S502000, C713S401000, C713S502000

Reexamination Certificate

active

07447524

ABSTRACT:
A method and system of cell timing distribution which greatly reduces the bus bandwidth required for transmission of cell timing information in a WCDMA base station. The system of the present invention comprises a timing control unit connected to several communication cells through transmission lines. Each communication cell comprises a timing generator which determines a local timing (sfn) according to a frame boundary signal and a timing difference (t_cell) parameter received from the timing control unit. The frame boundary signal indicates the starting boundary of the central base station (nodeB) timing, whereas the t_cell parameter represents the offset between the local cell timing and the nodeB timing. The timing generator is implemented using a finite state machine and a counter.

REFERENCES:
patent: 5898697 (1999-04-01), Hurme et al.
patent: 5963868 (1999-10-01), Baek
patent: 6377792 (2002-04-01), Brown et al.
patent: 6771985 (2004-08-01), Iinuma
patent: 6847826 (2005-01-01), Wesby et al.
patent: 6937617 (2005-08-01), Rakib et al.

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