Method for providing cell location service

• US 6,259,923 B1
• Filed: 07/08/1998
• Issued: 07/10/2001
• Est. Priority Date: 07/08/1997
• Status: Expired due to Term

• Current Assignee: SK Planet Co., Ltd. (SK Telecom Co., Ltd.), SK Telecom Co., Ltd.
• Original Assignee: SK Telecom Co., Ltd.
• Inventors: Jung, Hae Kwan, Yim, Sul Gi, Jang, Han Sik, Lim, Jae Sung
• Primary Examiner(s): Trost, William G.
• Assistant Examiner(s): Tran, Congvan
• Application Number:
  US09/111,837
• Time in Patent Office: 1,098 Days
• Field of Search: 455/456, 455/426, 455/433, 455/435, 455/466, 455/414, 455/458, 342/357, 342/450, 342/451
• US Class Current: 455/456.2
• CPC Class Codes: H04W 4/14 Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Abstract

The present invention provides a method for providing cell location service in digital mobile communication network, without additional device for cell location service. The cell location center requests that a mobile station provide current location of the mobile station. Then, the mobile station transfers the base station identification currently communicating with the mobile station. The cell location center finds the location of the mobile station using the base station identification which is uniquely defined in the mobile communication network.

Claims

1. A method for providing cell location service in a digital mobile communication network which provides short message service and comprises a plurality of mobile stations and base stations and a cell location center that is discrete from the plurality of mobile stations and maintains location information on each of said plurality of mobile stations in the digital mobile communication network the method including the steps of:

(a) generating, at the cell location center a cell location center request message requesting a location of a mobile station and transferring the cell location request message with a short message service for the mobile station;

(b) responsive to the cell location request message, generating, at the mobile station and at predetermined time intervals and transferring a response message having a base station identification representing the base station currently communicating with the mobile station to the cell location center; and

(c) determining a physical location of the mobile station based on the base station identification received from the mobile station.

2. A method, as claimed in claim 1, wherein the base station identification includes network number, mobile switching center number, base station controller number and base transceiver number.

3. A method as claimed in claim 2, wherein the base station identification further includes various sector information.

4. A method as claimed in claim 2, wherein the cell location request message includes scheduling parameter requesting periodic report.

5. A method, as claimed in claim 4, wherein the step (b) includes the steps of:

storing the scheduling parameter in embedded memory when the scheduling parameter is included in the cell location request message; and

transferring periodically the base station identification to the cell location center.

6. A method for providing cell location service in a digital mobile communication network which provides circuit switched data service and comprises a plurality of mobile stations and base stations and a cell location center which maintains location information on each of said plurality of mobile stations in the digital mobile communication network, the method including the steps of:

a) generating, at the cell location center, a cell location request message which requests a location of a mobile station and transferring the cell location request message with a short message for the mobile station;

b) responsive to the cell location request message, generating, at the mobile station and at predetermined time intervals, and transferring a response message having a base station identification representing the base station currently communicating with the mobile station to the cell location center; and

(c) determining a physical location of the mobile station based on the base station identification received from the mobile station.

7. A method, as claimed in claim 6 wherein the base station identification includes network number, mobile switching center number, base station controller number and base transceiver number.

8. A method as claimed in claim 7, wherein the base station identification further includes various sector information.

9. A method as claimed in claim 7, wherein the cell location request message includes scheduling parameter requesting periodic report.

10. A method, as claimed in claim 9, wherein the step (b) includes the steps of:

storing the scheduling parameter in embedded memory when the scheduling parameter is included in the cell location request message; and

transferring periodically the base station identification to the cell location center.

11. A method for providing cell location service in a digital mobile communication network which provides packet switched data service and comprises a plurality of mobile stations and base stations and a cell location center that maintains location information on each of said plurality of mobile stations in the digital mobile communication network, the method including the steps of:

a) generating at the cell location center a cell location request message seeking a location of a mobile station and transferring the cell location request message with a short message for the mobile station;

b) responsive to the cell location request message, at the mobile station, generating and transferring a response message at predetermined time intervals having a base station identification representing the base station currently communicating with the mobile station to the cell location center; and

(c) determining a physical location of the mobile station based on the base station identification received from the mobile station.

12. A method, as claimed in claim 11, wherein the base station identification includes network number, mobile switching center number, base station controller number and base transceiver number.

13. A method as claimed in claim 12, wherein the base station identification further includes various sector information.

14. A method as claimed in claim 12, wherein the cell location request message includes scheduling parameter requesting periodic report.

15. A method, as claimed in claim 14, wherein the step (b) includes the steps of:

storing the scheduling parameter in embedded memory when the scheduling parameter is included in the cell location request message; and

transferring periodically the base station identification to the cell location center.

16. A method for providing cell location service in a digital mobile communication network which provides a short message service and comprises a plurality of mobile stations and base stations and a cell location center which maintains location information on each of said plurality of mobile stations in the digital mobile communication network, the method including the steps of:

a) receiving at the mobile station, a base station identification representing a base station at a start of communication with the base station;

b) generating, at the cell location center, a cell location request message which requests a location of a mobile station and transferring the cell location request message with a short message for the mobile station;

c) responsive to the cell location request message, at the mobile station, generating and transferring a response message having the base station identification to the cell location center; and

d) determining a physical location of the mobile station based on the base station identification received from the mobile station.

17. A method for providing cell location service in a digital mobile communication network which provides a circuit switched data service and comprises a plurality of mobile stations and base stations and a cell location center that is separate from the plurality of mobile stations and which maintains location information on each of said plurality of mobile stations in the digital mobile communication network, the method including the steps of:

a) receiving, at the mobile station a base station identification representing a base station at a start of communication with the base station;

b) generating, at the cell location center, a cell location request message requesting a location of a mobile station and transferring the cell location request message with a short message for the mobile station;

c) responsive to the cell location request message, generating, at the mobile station at predetermined time intervals, and transferring a response message having the base station identification to the cell location center; and

d) determining a physical location of the mobile station based on the base station identification received from the mobile station.

18. A method for providing cell location service in a digital mobile communication network which provides a packet switched data service and comprises a plurality of mobile stations and base stations and a cell location center, the cell location center being discrete from the plurality of mobile stations and which maintains location information on each of said plurality of mobile stations in the digital mobile communication network, the method including the steps of:

a) receiving, at the mobile station, a base station identification representing a base station at a start of communication with the base station;

b) generating, at the cell location center a cell location request message which inquiry a location of a mobile station and transferring the cell location request message with a short message for the mobile station;

c) responsive to the cell location request message, generating, at the mobile station, and transferring a response message having the base station identification to the cell location center; and

d) determining a physical location of the mobile station based on the base station identification received from the mobile station.