Mobile terminal apparatus and system selecting method

Details Mobile terminal apparatus and system selecting method Mobile terminal apparatus and system selecting method

2007-02-06

2007-02-06

Nguyen, Duc M. (Department: 2617)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S435200

Reexamination Certificate

active

11218621

ABSTRACT:
In a first standby state, the reception quality of a signal from a system which has established synchronization is detected. If the detected reception quality deteriorates to be less than a threshold value, the destination of synchronization establishment is changed from a first system to a second system. In a second standby state after this system change, the reception quality of a system having a higher priority order of selection than the second system which has established synchronization is detected. If a third system whose detected reception quality exceeds the threshold value is found, the destination of synchronization establishment is changed to this third system again. After that, the first standby state is returned.

REFERENCES:
patent: 6058316 (2000-05-01), Takahashi
patent: 6353602 (2002-03-01), Cheng et al.
patent: 2003/0017842 (2003-01-01), Moles et al.
patent: 11-220430 (1999-08-01), None
Canadian Office Action issued by the Canadian Patent Office on Dec. 22, 2004.

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