| 摘要 |
PROBLEM TO BE SOLVED: To save wireless resources used for establishment of connections between mobile stations and a wireless base station and also improve response in data communication. SOLUTION: This mobile station 30 repeatedly decides normality of a wireless link, after entry process (registration of location) to a wireless base station 10, depending on whether DL-MAP is extracted or not within the time of timer value Lost DL-MAP with a control signal extracting unit 33B. However, if DL-MAP cannot be extracted within the time of timer value Lost DL-MAP after synchronization of the wireless link, this synchronization of the wireless link is maintained by utilizing DL-MAP newly extracted from the wireless frame, after successive scanning of the wireless frame by a signal searching unit 33A and the other control signal, such as, UL-MAP previously extracted. COPYRIGHT: (C)2009,JPO&INPIT
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