METHOD FOR OPERATING A MOBILE COMMUNICATIONS SYSTEM AND CORRESPONDING SYSTEM MOBILE COMMUNICATIONS SYSTEM
First Claim
1. A method for operating a mobile communications system, which comprises a multitude of radio cells (C1-C11) and at least one mobile communications terminal (4) with a subscriber identification module (5), the operation ensuing according to the whereabouts of the communications terminal and comprising the following steps:
- a) establishing at least one subscriber area (P1, r1) within a geographic total area covered by the mobile communications system;
b) determining those radio cells that are located at least partially within the subscriber area;
c) transmitting the cell identifications (CID) of the determined radio cells to the communications terminal (4) and the subscriber identification module (5);
d) storing the cell identifications in the subscriber identification module;
e) comparing whether the cell identifications of the radio cells currently serving the communications terminal correspond with the cell identifications stored in the subscriber module; and
f) switching to a special operating mode assigned to the subscriber area, if the comparison has determined a correspondence of a given current cell identification with at least one stored cell identification.
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Accused Products
Abstract
The invention relates to a method and device for operating a mobile communications system, which comprises a multitude of radio cells and at least one mobile communications terminal with a subscriber identification module, the operation ensuing according to the whereabouts of the communications terminal. According to the invention, at least one subscriber area is established within a geographic total area covered by the mobile communications system and determines those radio cells that are located at least partially within the subscriber area. The cell identifications of the determined radio cells are transmitted to the communications terminal and subscriber identification module of the subscriber and are stored there. A comparison then ensues of the correspondence of the cell identifications of the radio cells, which currently sense the communications terminal, with the cell identifications stored in the subscriber identification module whereby, if appropriate, a special operating mode is switched to that is assigned to the subscriber area.
64 Citations
22 Claims
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1. A method for operating a mobile communications system, which comprises a multitude of radio cells (C1-C11) and at least one mobile communications terminal (4) with a subscriber identification module (5), the operation ensuing according to the whereabouts of the communications terminal and comprising the following steps:
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a) establishing at least one subscriber area (P1, r1) within a geographic total area covered by the mobile communications system; b) determining those radio cells that are located at least partially within the subscriber area; c) transmitting the cell identifications (CID) of the determined radio cells to the communications terminal (4) and the subscriber identification module (5); d) storing the cell identifications in the subscriber identification module; e) comparing whether the cell identifications of the radio cells currently serving the communications terminal correspond with the cell identifications stored in the subscriber module; and f) switching to a special operating mode assigned to the subscriber area, if the comparison has determined a correspondence of a given current cell identification with at least one stored cell identification. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A mobile communications system comprising a multitude of radio cells (C1-C11) and at least one communications terminal (4) with a subscriber identification module (5), the communications system being operated according to the whereabouts of the communications terminal and comprising the following:
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a) means for establishing at least one geographic subscriber area (P1, r1) within a geographic total area covered by the mobile communications system; b) means for determining those radio cells that are located at least partially within the subscriber area; c) means for transmitting the cell identifications (CID) of the determined radio cells to the communications terminal; d) means for storing the cell identifications in the subscriber identification module; e) means for comparing the cell identifications of the radio cells currently serving the communications terminal with the cell identifications that are stored in the subscriber identification module; and f) means for operating the communications terminal in a special operating mode assigned to the subscriber area, if the comparison shows the correspondence of a current cell identification with at least one stored cell identification. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification