| 摘要 |
The location information can be rapidly restored in a home location register HLR and occurrence of abnormal traffic at the time of restoring the contents of the home location register can be prevented. A location registration request to the base stations located in the location registration area associated with the home location register is issued when the location information stored in the register should be restored. The base stations receive the location registration request, and send the broadcast information including location registration executing request information. The mobile stations execute the location registration process upon receipt of the location registration executing request. In this case, the mobile stations are arranged in a plurality of groups in order to avoid a situation in which a large number of mobile stations concurrently execute the location registration process. The location registration process is executed for each group at respective, different timings in order.
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