Importance

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Abstract

A mobile communication system and a mobile station paging method are provided which are capable of sending a mobile station paging signal only to base station areas in which a mobile station to be paged for an incoming call might be present. The mobile communication system is provided with a location register 31, a mobile station paging signal transfer node 21 and base stations 11 to 13. The mobile station paging signal transfer node 21 receives a mobile station paging signal from the location register 31 which has identified the location area for paging a mobile station for an incoming call, and the mobile station paging signal transfer node 21 searches sublocation information to identify certain base stations to receive the mobile station paging signal. The sublocation information contains a number of mobile stations existing in a base station area classified into eight group numbers, and the group number for a mobile station to be paged is calculated based on the mobile station identification number which has been sent from the location register 31 together with the mobile station paging signal. The sublocation information is searched by an index key of the calculated group number for a mobile station to be paged, and if at least one mobile station is found in the corresponding group number, the mobile station paging signal is sent to this base station. The mobile station paging signal transfer node 21 repeats this procedure for all base stations 11 to 13 under its control.

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First Claim