Method and system for call routing for 911 network connectivity

• US 20040203569A1
• Filed: 11/26/2002
• Published: 10/14/2004
• Est. Priority Date: 11/26/2002
• Status: Active Grant

• Current Assignee: General Motors LLC (General Motors Company)
• Original Assignee: General Motors Corporation (General Motors Company)
• Inventors: Jijina, Jasmin, Mazzara, William E. Jr., Italia, William E., Groskreutz, Bruce A.
• Granted Patent: US 7,395,045 B2
• Time in Patent Office: Days
• US Class Current: 455/404.1
• 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

Abstract

A method for call routing for emergency network connectivity, comprising A method for call routing for emergency network connectivity, comprising: utilizing a public communications network, establishing a trigger connection from a service management system to a mobile switching center serving a mobile unit; and using the trigger connection, triggering an emergency 911 connection from the mobile switching center to a public safety answering point serving the mobile unit based upon a unit position data of the mobile unit.

Claims

1. A method for call routing for emergency network connectivity, comprising:

placing a call from a mobile unit to a service management system;

transferring unit position data representing a position of the mobile unit to the service management system

initiating a network connection from the service management system to a first mobile switching center serving the mobile unit;

transferring the unit position data to the first mobile switching center;

utilizing the unit position data at the first mobile switching center to identify a public safety answering point associated with the location of the mobile unit;

initiating a priority connection from the first mobile switching center to the identified public safety answering point;

transferring the unit position data to the identified public safety answering point; and

enabling voice communications from the mobile unit to the public safety answering point through the call.

2. The method of claim 1, also comprising the steps of:

identifying the first mobile switching center serving the mobile unit responsive to the unit position data.

3. The method of claim 2, wherein the step of identifying the first mobile switching center comprises the substeps of:

connecting to a second mobile switching center serving the service management system;

using one of the unit position data and an ESN of the mobile unit to identify in a database or register the first mobile switching center.

4. The method of claim 1, also comprising the steps of:

comparing first and second raw position datas; and

selecting as the unit position data one of the first and second raw position data having highest quality position information.

5. The method of claim 1, also comprising the steps of:

transferring additional data relating to the mobile unit to the service management system; and

transferring the additional data from the service management system to the public safety answering point.

6. A method for call routing for emergency network connectivity according to claim 1, wherin the priority connection is a 911 connection.

7. A method for call routing for emergency network connectivity, comprising:

placing a call from a mobile unit to a service management system;

transferring unit position data representing a position of the mobile unit to the service management system

utilizing a public communications network, establishing a connection from the service management system to a mobile switching center serving the mobile unit;

establishing an emergency connection from the mobile switching center to a public safety answering point serving the vehicle based upon the unit position data;

transferring the unit position data to the public safety answering point; and

enabling voice communications from the mobile unit to the public safety answering point through the call.

8. The method of claim 7, wherein the public communications network utilized includes an SS7 network.

9. A method for call routing for emergency network connectivity, comprising:

utilizing a public communications network, establishing a trigger connection from a service management system to a mobile switching center serving a mobile unit; and

using the trigger connection, triggering an emergency 911 connection from the mobile switching center to a public safety answering point serving the mobile unit based upon a unit position data of the mobile unit.

10. The method of claim 9, also comprising the step of:

transferring the unit position data to the public safety answering point.

11. The method of claim 10, also comprising the step of enabling voice communications from the mobile unit to the public safety answering point utilizing the connections.

12. The method of claim 9, wherein the trigger connection is also to additional mobile switching centers.

13. The method of claim 12, wherein the trigger connection is to a plurality of additional public safety answering points.