Method for performing frequency synchronization of a base...

Details Method for performing frequency synchronization of a base... Method for performing frequency synchronization of a base...

2006-01-03

2006-01-03

Chin, Vivian (Department: 2682)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C375S354000, C370S503000

Reexamination Certificate

active

06983161

ABSTRACT:
The invention relates to a method for performing frequency synchronization of a base station, and to a network part. In the method, the following operations are performed: maintaining a reference clock in a network element of the cellular radio network; generating a time stamp signal in the reference clock; transferring the time stamp signal from the network element to the base station over an asynchronous data transmission connection; calculating on the basis of the transferred time stamp signal how much the time by the local clock at the base station deviates from the time by the reference clock; generating a speed correction factor for the local clock on the basis of at least one calculated deviation; correcting the running of the local clock with the speed correction factor; and generating the frequencies needed at the base station by using the local clock corrected with the speed correction factor.

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patent: 5402424 (1995-03-01), Kou
patent: 5958060 (1999-09-01), Premerlani
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patent: 2001-174821 (2000-06-01), None
patent: WO 00/28401 (2000-05-01), None
patent: WO 00/69102 (2000-11-01), None

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