Patent ID: 6108541
Filing Date: 2000-08-22
Classification: H04W,Y02D

Abstract:
A control channel searching method in a mobile station wherein a power supply for a receiving circuit is turned off during a break time of receiving level measurements, comprising steps of:(a) performing a first control channel selection mode for intermittently repeating the receiving level measurements on control channel groups each of which consists of a plurality of control channels preselected from all the control channels prestored in the mobile station, by inserting the break time of the receiving level measurements until at least any one of the control channels of at least one control channel group having a receiving level equal to or greater than a first predetermined value is detected;(b) performing a second control channel selection mode for measuring receiving levels of all the control channels stored in said mobile station if a control channel having a receiving level equal to or greater than said first predetermined value is detected as the result of performing said first control channel selection mode;(c) selecting an optimum control channel based on the receiving level measured in said second control channel selection mode; and(d) performing said steps (a), (b) and (c) again if an optimum control channel cannot be selected in said step (c).