Emergency call signaling using mobile telecommunications devices

• US 20040081139A1
• Filed: 07/14/2003
• Published: 04/29/2004
• Est. Priority Date: 01/12/2001
• Status: Active Grant

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Beckmann, Mark, Kowalewski, Frank, Laumen, Josef, Hans, Martin, Bar, Siegfried, Choi, Hyung-Nam, Schmidt, Gunnar, Gottschalk, Thomas
• Granted Patent: US 7,215,941 B2
• Time in Patent Office: Days
• US Class Current: 370/352
• CPC Class Codes: G01S 2205/006 for emergency situations
• 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

To accelerate the specification of a location during the sending of an emergency call of a mobile telecommunications device, in particular a terminal, the position of the respective mobile telecommunications device is determined prior to the sending of the call and/or independently of the mobile telecommunications network and is transmitted when the emergency call is sent.

Claims

9. (new) A method for transmitting an emergency call from a mobile telecommunication device in a UMTS mobile telecommunication network, the method comprising the steps of:

sending an RRC connection request via a serving radio network controller following setup of an RRC connection;

returning, via the serving radio network controller, an acknowledgement of the RRC connection request via an RRC connection setup signal to the telecommunications device following successful detection of the RRC connection request; and

confirming, via the telecommunications device, an established RRC connection to the serving radio network controller via an RRC connection complete message, wherein a current position of the respective mobile telecommunications device is determined proir to or during the transmission of the emergency call independently of further components of the telecommunications network and i transmitted to the serving radio network controller with the RRC connection complete message, and wherein a direct connection is subsequently set up between the telecommunications device and a location service call client with aid of a mobile services switching center which is connected to the serving radio network controller.

10. (new) A method for transmitting an emergency call from a mobile telecommunications device as claimed in claim 9, wherein the current position is determined independently of a user of the mobile telecommunications device according to a rule specification.

11. (new) A method for transmitting an emergency call from a mobile telecommunications device as claimed in claim 10, wherein the specification provides a time-clocked determination of the current position.

12. (new) A method for transmitting an emergency call from a mobile telecommunications device as claimed in claim 9, wherein the current position is determined via propagation delay method.

13. (new) A method for transmitting an emergency call from a mobile telecommunications device as claimed in claim 9, wherein the current position is determined via a propagation delay method.

14. (new) A method for transmitting an emergency call from a mobile telecommunications device as claimed in claim 13, wherein propagation delays of signals of different fixed transmitters are determined in window periods of at least one other transmitter.

15. (new) A method for transmitting an emergency call from a mobile telecommunications device as claimed in claim 13, wherein propagation delays of signals of further mobile telecommunications devices which, in their turn, regularly perform a separate position determination are used for position determination.

16. (new) A UMTS mobile telecommunications network for transmitting an emergency call from a mobile telecommunications device which is in the mobile telecommunications network, comprising:

at least one mobile telecommunications device;

a serving radio radio network controller, wherein an RRC connection request is sent to the serving radio network controller following setup of an RRC connection, the serving radio network connection returns an acknowledgement of the RRC connection request via an RRC connection setup signal to the mobile telecommunications device following successfull detection of the RRC connection request, the mobile telecommunications device confirms an established RRC connection to the serving radio network controller via an RRC connection complete message, and a current position of the respective mobile telecommunications device is determined prior to or during the transmission of the emergency call independently of further components of the telecommunications network and is transmitted to the serving radio network controller with the RRC connection complete message; and

a mobile services switching center connected to the serving radio network controller, wherein a direct connection is subsequently set up between the mobile telecommunications device and a location service call client with aid of the mobile services switching center.