Registration method in a cellular mobile radio system

Details Registration method in a cellular mobile radio system Registration method in a cellular mobile radio system

1996-12-11

1999-04-27

Le, Thanh Cong

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455435, 455458, H04Q 700

Patent

active

058989234

ABSTRACT:
The present invention relates to a method of registering a mobile station in a cellular mobile radio system in which areas, each including a plurality of cells, form registration areas. Each registration area (RA1, RA2, RA3, . . . ) has its own identity (X). According to the proposed method, individual location areas are defined whenever registering a given mobile station with the intention of avoiding an unnecessarily high number of registrations in border areas of the different registration areas. A location area may have the form of a list of registration areas (X1, X2, X3, . . . ), which is stored in a mobile station (MS), or may be stored in the system (HLR, MSC) and transmitted to the mobile station (MS) via a base station (BS) in a given registration area, in conjunction with registration of the mobile station in this area. A new registration is made only if the mobile station enters a service area that belongs to a registration area whose identity (X) is not found on the stored list of registration areas (X1, X2, X3, . . . ).

REFERENCES:
patent: 5081679 (1992-01-01), Dent
patent: 5101500 (1992-03-01), Marui
patent: 5212822 (1993-05-01), Fukumine et al.
patent: 5289527 (1994-02-01), Tiedemann, Jr.
S. Okasaka et al., "A New Location Updating Method for Digital Cellular Systems," Proceedings of the 41st IEEE Vehicular Technology Conference, St. Louis, Mo., pp. 345-350 (May 19-22,(1991).

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