Patent ID: 6360096
Filing Date: 2002-03-19
Classification: H04W

Abstract:
A mobile telephony method using signaling messages with priority levels, the method including operations effected by a home location register for exploiting messages received by the home location register, the home location register assigning each message a priority level chosen from a scale of such levels and such that the probability of exploitation of the message decreases as the priority level decreases, the home location register containing respective data of a plurality of mobile stations, some of said operations being updates including:collective updates to said data of mobile stations, each update constituting a reset and being reported to a plurality of switching centers each containing said data of mobile stations within an area of a center, and individual updates each effected to exploit one of said messages sent by one of said switching centers, the updates updating in said home location register the data of one of said mobile stations constituting a mobile station to which the message relates, a set of individual updates including: visit updates, each visit update request message being transmitted by one of said switching centers for exploitation of a visit notification reporting arrival of the mobile station to which the message relates in said area of the center, and updates after a reset, each update after a reset request message triggering one of said updates after a reset being transmitted by one of said switching centers to exploit a contact between the center and one of said mobile stations which is in said area of the center and to which the message relates, the contact occurring after a preceding one of said visit update request messages transmitted by the center, the mobile station being one to which the preceding message relates, the contact being a first contact between the mobile station and the center after a reset, wherein said switching centers introduce a difference which can be detected by said home location register between said visit update requests and said update after a reset requests, the home location register assigning update after a reset requests a lower priority level than visit update requests.