Broadcasting messages to mobile stations within a geographic area

• US 6,052,591 A
• Filed: 08/19/1996
• Issued: 04/18/2000
• Est. Priority Date: 08/19/1996
• Status: Expired due to Term

• Current Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Original Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Inventors: Bhatia, Ranjit
• Primary Examiner(s): CUMMING, WILLIAM D
• Application Number:
  US08/699,661
• Time in Patent Office: 1,338 Days
• Field of Search: 455/445, 455/432, 455/436, 455/439, 340/825.03, 340/825.44, 380/23
• US Class Current: 455/445
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• 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 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• CPC Class Codes: H04W 76/50 for emergency connections
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support

Abstract

A dialable directory number is assigned to a particular location area or cell area. A telecommunications user wanting to transmit user defined messages, such as a text message, to mobile stations within that location area or cell area transmits a signal encapsulating the message towards the assigned directory number. The transmitted signal is then routed through the conventional telecommunications network and delivered to the MSC providing mobile service to that particular location area or cell area. If the specified directory number is associated with a location area within a Public Land Mobile Network (PLMN), the serving MSC queries the attached visitor location register (VLR) to identify the mobile stations currently located within the specified location area. If the specified directory number is associated with a cell area, the serving MSC communicates with a base station controller (BSC) providing mobile service to that particular cell area. Thereinafter, the received message is transmitted using short message service (SMS) messages to each of the mobile stations determined to be located within the specified geographic area.

Claims

1. A method for communicating data to a plurality of mobile stations within a mobile telecommunications system, said plurality of mobile stations being served by a particular telecommunications device having a unique directory number and serving a plurality of geographic areas, wherein the unique directory number is associated with a particular one of said geographic areas, said method comprising the steps of:

transmitting a connection-less signal towards said telecommunications device using said unique directory number as a destination address, the connection-less signal including data for mobile station delivery;

receiving said connection-less signal with included data at said telecommunications device;

identifying a plurality of mobile stations being served by said telecommunications device and being located within said particular one of the geographic areas; and

transmitting a plurality of messages encapsulating said included data, wherein each of said plurality of messages is transmitted towards one of said identified plurality of mobile stations by said telecommunications device.

2. The method of claim 1 wherein said step of transmitting said received data further comprises the step of transmitting a Short Message Service (SMS) message encapsulating said included data.

3. The method of claim 1 wherein said step of transmitting said included data further comprises the step of transmitting an Unstructured Supplementary Service Data (USSD) message encapsulating said included data.

4. The method of claim 1 wherein said telecommunications device serves a plurality of geographic areas and said unique directory number is associated with a particular one of said plurality of geographic areas and wherein said step of identifying said plurality of mobile stations further comprises the step of identifying mobile stations located within said particular one of said plurality of geographic areas.

5. The method of claim 1 wherein said telecommunications device comprises a mobile switching center (MSC) serving said plurality of mobile stations and wherein said plurality of geographic areas include a plurality of location areas.

6. The method of claim 1 wherein said telecommunications device comprises a base station controller (BSC) serving said plurality of mobile stations and wherein said plurality of geographic areas include a plurality of:

cell areas.

7. The method of claim 1 wherein said unique directory number comprises a Mobile Station Integrated Service Digital Network (MSISDN) number assigned to said telecommunications device.

8. The method of claim 1 wherein said unique directory number comprises a dialable wireline directory number.

9. The method of claim 1 wherein said step of identifying a plurality of mobile stations being served by said telecommunications device further comprises the step of communicating with a visitor location register (VLR) associated with said telecommunications device.

10. A method for communicating data to a plurality of mobile stations traveling within a particular geographic area, said method comprising the steps of:

assigning a unique directory number to a particular one of a plurality of geographic areas being served by a telecommunications device providing mobile service to mobile stations;

transmitting a signal encapsulating data to said telecommunications device using said unique directory number of the particular one of the geographic areas as a destination address;

receiving said transmitted signal at said telecommunications device;

determining the identity of a plurality of mobile stations located within said particular one of the geographic areas represented by said received unique directory number; and

communicating a plurality of connection-less signals encapsulating said data, wherein each of said plurality of connection-less signals is transmitted towards one of said plurality of identified mobile stations.

11. The method of claim 10 wherein said unique directory number includes a Mobile Subscriber Integrated Service Digital Network (MSISDN) number assigned to said telecommunications device.

12. The method of claim 10 wherein said unique directory number includes a wireline directory number assigned to said telecommunications device.

13. The method of claim 10 wherein said particular geographic area comprises a location area and said telecommunications device comprises a mobile switching center serving said location area.

14. The method of claim 10 wherein said particular geographic area comprises a cell area and said telecommunications device comprises a base station controller serving said cell area.

15. The method of claim 10 wherein said step of transmitting said connection-less signal comprises the step of transmitting a short message service (SMS) signal over a control channel to said each of said plurality of mobile stations traveling within said geographic area.

16. A system for communicating data to a plurality of mobile stations traveling within a particular geographic area, said system comprising:

a telecommunications device providing mobile service to mobile stations within a plurality of geographic areas, wherein a Particular one of the geographic areas is assigned a unique directory number;

means for routing a signal encapsulating said data towards said telecommunication device using said unique directory number of the particular one of the geographic areas as a destination address;

means for receiving said signal encapsulating said data at said telecommunications device;

means for determining the identity of a plurality of mobile stations located within said particular geographic area assigned the unique directory number; and

means for communicating a plurality of connection-less signals encapsulating said data, wherein each of said plurality of connection-less signals is transmitted towards one of said plurality of identified mobile stations.

17. The system of claim 16 wherein said unique directory number includes a Mobile Subscriber Integrated Service Digital Network (MSISDN) number assigned to said telecommunications device.

18. The system of claim 16 wherein said unique directory number includes a wireline directory number assigned to said telecommunications device.

19. The system of claim 16 wherein said particular geographic area comprises a location area and said telecommunications device comprises a mobile switching center serving said location area.

20. The system of claim 16 wherein said particular geographic area comprises a cell area and said telecommunications device comprises a base station controller serving said cell area.

21. The system of claim 16 wherein said means for transmitting said connection-less signal further comprises means for transmitting a short message service (SMS) signal over a control channel to said each of said plurality of mobile stations traveling within said geographic area represented by said received unique directory number.