Method and system for primary paging location of mobile terminal
First Claim
1. A method of locating a mobile terminal in a mobile communications network, the method comprising the steps of:
- detecting when said mobile terminal has entered a new roaming area, said new roaming area being comprised of two or more location areas, each of said two or more location areas being comprised of one or more cells;
obtaining roaming area information of said new roaming area;
storing said roaming area information in a database; and
primary paging said mobile terminal within said new roaming area using said roaming area information stored in said database.
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Accused Products
Abstract
The present invention is directed to a method and system for producing and storing “roaming” area information of a mobile terminal in a home location register or guest location register. A “roaming” area includes a group of location areas within a single service area. When a mobile terminal enters a new location area within a new roaming area or enters a new service area, the home location register (HLR) or guest location register (GLR) is updated with the roaming area information of the mobile terminal. The HLR/GLR stores this information in addition to the other information typically stored for the mobile terminal. If an MSC/VLR system restart and reload occurs or another event such that the location area information is lost, the roaming area information can be retrieved from the HLR/GLR. Likewise, if the mobile terminal does not respond to a page within the location area stored for the mobile terminal, the roaming area information can be retrieved from the MSC/VLR. Thereafter, the roaming area information can be used by the MSC/VLR to perform a primary page for a mobile terminal within the roaming area, instead of a global page within the service area, thus reducing paging congestion in the network.
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Citations
45 Claims
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1. A method of locating a mobile terminal in a mobile communications network, the method comprising the steps of:
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detecting when said mobile terminal has entered a new roaming area, said new roaming area being comprised of two or more location areas, each of said two or more location areas being comprised of one or more cells;
obtaining roaming area information of said new roaming area;
storing said roaming area information in a database; and
primary paging said mobile terminal within said new roaming area using said roaming area information stored in said database. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A system for locating a mobile terminal in a mobile communications network, comprising:
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a mobile switching center adapted to detect when said mobile terminal has entered a new roaming area and to obtain a roaming area information of said new roaming area, said new roaming area being comprised of two or more location areas, each of said two or more location areas being comprised of one or more cells; and
a database connected to said mobile switching center and configured to store said roaming area information;
whereinsaid mobile switching center is further adapted to issue a primary page for said mobile terminal within said new roaming area using said roaming area information stored in said database. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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Specification