Patent ID: 6223038
Filing Date: 2001-04-24
Classification: H04W

Abstract:
A location registration method for a mobile radio communication system wherein information to be commonly supplied to all mobile stations is broadcasted by base stations, and each time a mobile station moves to a different location registration area, location information indicating a location registration area in which said mobile station is located is registered in memory means on the basis of a location registration signal sent by said mobile station, and wherein, when a call directed to a mobile station is received, simultaneous paging is carried out, on the basis of the location information read from the memory means, via the base stations located in a location registration area in which the called mobile station is located, said location registration method comprising the steps of:issuing, when the location information stored in the memory means should be restored after a fault occurs, a location registration request to the base stations located in a location registration area associated with the memory means;sending, from the base stations which receive the location registration request, the broadcast information including location registration executing request information;sending the location registration signals from the mobile stations which receive said location registration executing request information; andrestoring the location information into the memory means based upon the location registration signals from the mobile stations.