System and method for network assisted calibration in a wireless network

1. A method for causing generation of calibration data for a wireless network wherein position determination of a handset is performed, the network including a Mobile Switching Center (MSC) and a Position Determination Device (PDD), the method comprising:

receiving a phone call from the handset via the MSC;

sending a first position request message to the PDD in response to the received phone call;

receiving a position response message from the PDD;

sending a second position request message to the PDD in response to the same received phone call and the received position response message;

continuously sending a plurality of subsequent position request messages to the PDD in response to the same received phone call;

terminating the sending of a plurality of subsequent position request messages, when a termination trigger is received from the MSC; and

sending a call termination message to the MSC in response to the received termination trigger.

2. The method of claim 1 , further comprising causing the generation of output data for use in network calibration.

3. The method of claim 1 , wherein the termination trigger is a call termination message from the MSC.

4. The method of claim 1 , wherein the termination trigger is release of the received phone call.

5. The method of claim 1 , further comprising generating a synthesized audio feedback.

6. A method for causing generation of calibration data in a wireless network including a Mobile Switching Center (MSC), and a Position Determination Device (PDD) to determine position of a handset, the method comprising:

receiving a trigger from the MSC;

sending a position request message to the PDD in response to the received trigger;

receiving a position request response message from the PDD;

continuously sending subsequent position request messages to the PDD in response to the same received trigger, until a termination command is received;

terminating the sending subsequent position request messages, when the termination command is received; and

causing the generation of output data for use in network calibration.

7. The method of claim 6 , wherein the trigger is generated by a call origination message from the MSC.

8. The method of claim 6 , wherein the trigger is generated by a received call from the handset.

9. The method of claim 8 , further comprising generating a synthesized audio feedback.

10. The method of claim 6 , wherein the termination command is a call termination message from the MSC.

11. The method of claim 8 , further comprising sending a call termination message to the MSC in response to the received termination command.

12. The method of claim 9 , wherein the termination occurs when the received call from the handset is released.

13. The method of claim 12 , further comprising sending a call termination message to the MSC upon the release of the call origination message from the MSC.

14. The method of claim 6 , wherein the termination command is generated after a predetermined number of subsequent position request messages are sent to the PDD.

15. A system for causing generation of calibration data for a wireless network wherein position determination of a handset is performed, the network including a Mobile Switching Center (MSC) and a Position Determination Device (PDD) comprising:

means for receiving a phone call from the handset via the MSC;

means for sending a first position request message to the PDD in response to the received phone call;

means for receiving a position response message from the PDD;

means for sending a second position request message to the PDD in response to the same received phone call and the received position response message;

means for continuously sending a plurality of subsequent position request messages to the PDD in response to the same received phone call;

means for terminating the sending of a plurality of subsequent position request messages, when a termination trigger is received from the MSC; and

means for sending a call termination message to the MSC in response to the received termination trigger.

16. The system of claim 15 , further comprising means for causing the generation of output data for use in network calibration.

17. The system of claim 15 , wherein the termination trigger is a call termination message from the MSC.

18. The system of claim 15 , wherein the termination trigger is release of the received phone call.

19. The method of claim 15 , further comprising generating a synthesized audio feedback.

20. A system for causing generation of calibration data in a wireless network including a Mobile Switching Center (MSC), and a Position Determination Device (PDD) to determine position of a handset comprising:

means for receiving a trigger from the MSC;

means for sending a position request message to the PDD in response to the received trigger;

means for receiving a position request response message from the PDD;

means for continuously sending subsequent position request messages to the PDD in response to the same received trigger, until a termination command is received;

means for terminating the sending subsequent position request messages, when the termination command is received; and

means for causing the generation of output data for use in network calibration.

21. The system of claim 20 , wherein the trigger is generated by a call origination message from the MSC.

22. The system of claim 20 , wherein the trigger is generated by a received call from the handset.

23. The system of claim 22 , further comprising generating a synthesized audio feedback.

24. The system of claim 20 , wherein the termination command is a call termination message from the MSC.

25. The system of claim 22 , further comprising means for sending a call termination message to the MSC in response to the received termination command.

26. The system of claim 23 , wherein the termination occurs when the received call from the handset is released.

27. The system of claim 26 , further comprising means for sending a call termination message to the MSC upon the release of the call origination message from the MSC.

28. The system of claim 20 , wherein the termination command is generated after a predetermined number of subsequent position request messages are sent to the PDD.