Method for searching a control channel in a mobile station

Details Method for searching a control channel in a mobile station Method for searching a control channel in a mobile station

1997-06-12

2000-08-22

Urban, Edward F.

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455455, 455 321, 455515, 455414, H04Q 720, H04Q 736

Patent

active

061085413

ABSTRACT:
A control channel is searched for call waiting in a mobile station where the power supply for a receiving circuit is turned off during a break time of receiving level measurements, wherein in a first control channel selection mode, all the control channels are divided into a plurality of groups, the receiving levels of the control channels are measured group by group intermittently and sequentially. The intermittent measurement of these groups are repeated until a control channel having a receiving level equal to or greater than a first predetermined value is detected. When a receiving level equal to or greater than the first predetermined value is detected, the receiving levels of all the control channels are measured in a second control channel selection mode.

REFERENCES:
patent: 5119397 (1992-06-01), Dahlin et al.
patent: 5212803 (1993-05-01), Uddenfeld et al.
patent: 5257400 (1993-10-01), Yoshida

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