Method and system for updating of home-zone list automatically in mobile telecommunication system

• US 20030119501A1
• Filed: 05/28/2002
• Published: 06/26/2003
• Est. Priority Date: 12/04/2001
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Young-Hae
• Granted Patent: US 7,120,436 B2
• Time in Patent Office: Days
• US Class Current: 455/433
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition

Abstract

A method and system is for automatically updating a home-zone list in a subscriber database as the configuration of a cell changes in a cellular mobile telecommunication system mounted with a home-zone service center. Specifically, the method includes the steps of deciding at least one base station having a base station system parameter according to a change in the cell configuration because of expansion, moving or dismantlement of a base station, selecting at least one subscriber who is under the influence of changes in the base station, generating a home-zone list including at & least one home-zone base station that can provide a home-zone service to every selected subscriber, and updating a database of the subscriber based on the generated home-zone list. Therefore, the present invention enables to update the home-zone list that is necessary to provide the best quality home-zone services to the subscribers every time the configuration of the cell changes, thereby applying a subscriber home-zone list more accurately and fast.

Claims

1. A method for updating a home-zone list in a subscriber database according to a change in a cell configuration in a cellular mobile telecommunication system equipped with a home-zone service center for defining a region with differential charges as a home-zone and controlling home-zone services, the method comprising the steps of:

determining at least one base station with system parameters being modified in response to a change in cell configuration;

selecting at least one subscriber being under the influence of changes in said base station;

generating a home-zone list including at least one home-zone base station providing a home-zone service to every selected subscriber; and

updating a database of the subscriber based on the generated home-zone list.

2. The method as claimed in claim 1, said step of selecting at least one subscriber further comprised of every subscriber having a residence within a designated distance from each of the determined base stations being selected to not be duplicated.

3. The method as claimed in claim 2, said base station with base station system parameter going through a modification due to the change in the cell configuration, being selected from a group consisting essentially of at least one of a base station under expansion or moving, neighbor base stations of the base station under expansion or moving, and neighbor base stations of a base station being dismantled.

4. The method as claimed in claim 1, said step of generating said home-zone list further comprising the sub-steps of:

selecting base stations located within a designated distance from each residence of the selected subscribers, respectively, using information about the selected subscriber home address and location information on all base stations configuring the cellular mobile telecommunication system;

grouping the selected base stations into a plurality of groups in accordance with a direction angle reflecting a direction the selected base stations face towards the selected subscriber home;

arraying the selected base stations in the plurality of groups in accordance with priorities of providing a maximum quality of home-zone services to the selected subscribers;

determining, in accordance with the array result, home-zone base stations based on a predetermined designated number of base stations selected from the base stations having high priorities;

determining a service sector for servicing the home-zone subscribers to each determined home-zone base station; and

generating the home-zone list including information about the determined home-zone base stations and information about the service sector.

5. The method as claimed in claim 1, further comprising the change in the cell configuration being from any one of expansion, moving and dismantlement of a base station.

6. The method as claimed in claim 4, further comprising the steps of:

determining whether there is an empty group; and

determining a base station to be included in the empty group.

7. The method as claimed in claim 1, further comprising of determining whether information of the change in cell configuration is received before said step of determining at least one base station with system parameters being modified.

8. The method as claimed in claim 1, further comprising the step of storing said home-zone list after said step of generating said home-zone list.

9. A system for updating a home-zone list in a subscriber database according to a change in a configuration of a cell in a cellular telecommunication system defining a region practicing differential charges as a home-zone and supports a home-zone service, the system comprising:

a home-zone service center receiving information about changes in a cell configuration, and for generating a home-zone list for every subscriber who is under the influence of the changes in the configuration of a cell; and

a home location register equipped with information about the cellular mobile telecommunication system subscribers and home-zone information for updating subscriber databases of all subscribers who are under the influence of a change in a configuration of a cell based on the home-zone list generated by the home-zone service center.

10. The system as claimed in claim 9, said home-zone service center determining at least one base station having modified base station system parameters due to the change in the cell configuration, and selecting subscribers who have homes within a designated distance from each of the determined base stations not to be overlapped.

11. The system as claimed in claim 10, said base station with base station system parameter going through a modification due to the change in the cell configuration, being selected from a group consisting essentially of at least one of a base station being under expansion or moving, neighbor base stations of the base station being under expansion or moving, and neighbor base stations of a base station being dismantled.

12. The system as claimed in claim 9, further comprising the change in the cell configuration being from any one of expansion, moving and dismantlement of a base station.

13. The system as claimed in claim 9, said home-zone service center further comprising:

a first unit including the system parameters of the base station having cell configuration changes;

a second unit generating tile home-zone list; and

a third unit storing the home-zone list.

14. A method, comprising:

determining base stations with system parameters being modified according to a change in a configuration of a cell of cellular mobile telecommunication;

selecting all subscribers affected by the change in the configuration of the cell;

generating a home-zone list for each of the selected subscribers; and

updating the home-zone list.

15. The method of claim 14, with all subscribers affected by the change in the configuration of the cell being all subscribers living within a designated distance centering around each coordinate of the base stations with modified system parameters due to the changes in the configuration of the cell.

16. The method of claim 15, with all subscribers affected by the change in the configuration of the cell being selected to not overlap by more than two base stations.

17. The method of claim 14, said step of generating the home-zone list further comprising:

selecting the base stations located within a predetermined distance from a home of the subscriber;

determining priorities establishing a subscriber home-zone; and

generating the home zone list including information about home-zone substations required to provide home-zone services.

18. The method of claim 14, further comprising of storing the home-zone list at a first unit while updating the home-zone list at a second unit at the same time.

19. The method of claim 14, said step of selecting all subscriber affected by the change further comprised of every subscriber having a residence within a designated distance from each of the determined base stations being selected to not be duplicated.

20. The method of claim 14, said base station with base station system parameter going through a modification due to the change in the cell configuration, being selected from a group consisting of a base station under expansion or moving, neighbor base stations of the base station under expansion or moving, and neighbor base stations of a base station being dismantled.