IP-based location service within code division multiple access network

• US 20050066044A1
• Filed: 06/30/2003
• Published: 03/24/2005
• Est. Priority Date: 06/30/2003
• Status: Abandoned Application

• Current Assignee: Nokia Corporation
• Original Assignee: Nokia Corporation
• Inventors: Chaskar, Hemant, Lalwaney, Poornima, Rousseau, Jean-Michel
• Application Number:
  US10/611,053
• Publication Number:
  US 20050066044A1
• Time in Patent Office: Days
• US Class Current: 709/230
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 67/52 specially adapted for the location of the user terminal
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/165 Combined use of TCP and UDP protocols; selection criteria therefor
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Abstract

An Internet protocol (IP) based location system that employs a global positioning system (GPS) component in connection with a position determining entity (PDE) component to determine location of target mobile station(s) via the Internet. As such the system provides an internet protocol based scheme (e.g., UDP) to initiate a location determination session within a CDMA network. The system can provide a location determining service even when the mobile station(s) are not within a home network (e.g., roaming situations). The system can also employ HTTP over TCP/IP so as to facilitate communications between the mobile station(s) and a mobile positioning center (MPC) (e.g., authentication and/or security protocols/schemes). Furthermore, the system can identify a PDE of a plurality of available PDEs that is most suitable for a given state of the mobile station and/or state of the user and/or particular location based application being employed by the mobile station.

Claims

1. A system that facilitates determining location of mobile stations, comprising:

a mobile station that receives information regarding a position determining entity (PDE), and opens an user datagram protocol (UDP) session to establish a location determination session with the PDE.

2. The system of claim 1, further comprising a mobile positioning center (MPC) that generates a message including the information regarding an optimal PDE that can assist the mobile station in the location determination session.

3. The system of claim 2, further comprising a component that stores historical IP messages regarding locating the optimal PDE.

4. The system of claim 1, the message containing information regarding PDE comprising at least one of:

IP address of the PDE, transport protocol communication method of the PDE, transport protocol port number, and session lifetime of the PDE, temporary session ID, secure message exchange key.

5. The system of claim 2, the MPC providing the message via connectionless or connection oriented push.

6. The system of claim 1, the mobile station establishing the location determination session via the IP session in lieu of employment of a signal system 7 (SS7) network.

7. The system of claim 2, the mobile station initiating a query for the PDE information.

8. The system of claim 7 further comprising a data store that stores historical database information regarding the query.

9. The system of claim 7, the query is an HTTP POST.

10. The system of claim 2, the message is in XML format.

11. The system of claim 2, further comprising an artificial intelligence (AI) component to facilitate identifying the optimal PDE.

12. The system of claim 11, the AI component comprising a trained classifier.

13. The system of claim 1, the mobile station is a cellular telephone.

14. The system of claim 1, the mobile station is a portable computer.

15. The system of claim 13, the cellular telephone containing a GPS component.

16. The system of claim 1, further comprising a component that opens a TCP session in lieu of the UDP session based on reliability versus setup latency cost-benefit analysis.

17. The system of claim 1, the mobile station sending a traffic flow template to a packet data support node to open a firewall.

18. The system of claim 1, further comprising an application that requests other mobile station location updates via terminal initiated procedures.

19. The system of claim 1, the location determination session is initiated by the mobile station.

20. The system of claim 1, the location determination session is initiated by a network entity other than the mobile station.

21. The location determination session of claim 18 utilizing third party IP-based location services.

22. The system of claim 1, the location determination session initiated by a user interface residing in the mobile station.

23. The system of claim 21, the user interface is a J2ME application.

24. A mobile positioning methodology comprising:

determining a network attachment point of a mobile station; and

employing a home mobile positioning center (MPC) to request a serving MPC to provide position determining entity (PDE) information regarding a location determining service to facilitate the mobile station opening a suitable location determination session.

25. The method of claim 24, further comprising employing a home location register to provide the network attachment point for the mobile station.

26. The methodology of claim 25, the network attachment location being in a home network.

27. The methodology of claim 24, the network attachment location being in a visiting network.

28. The method of claim 24, further comprising discovering available PDEs.

29. A system that facilitates determining location of mobile stations, comprising:

means for determining a most suitable internet protocol (IP) of a plurality of internet protocols to employ for a session between a mobile station and a position determining entity (PDE); and

means for establishing the session.

30. The system of claim 29, further comprising means for establishing an assisted global positioning system (AGPS) session with the PDE.

31. A computer-implemented method that facilitates determining location of a mobile station comprising:

receiving information regarding a position determining entity (PDE);

employing the PDE information to establish a user datagram protocol session between a cellular telephone and the PDE; and

employing an assisted global positioning system (A-GPS) to determine approximate location of the cellular telephone.

32. The method of claim 31 further receiving queries from the cellular telephone regarding identifying an optimal PDE.

33. The method of claim 32 further comprising tracking the queries.

34. A computer readable medium having stored thereon computer executable instructions for performing the method of claim 31.

35. A mobile positioning center (MPC) that facilitates identifying location of a mobile station, comprising:

a component that receives a request from the mobile station for identification of a position determining entity (PDE);

a component that provides the mobile station with information regarding the PDE, the information including data to facilitate establishing a user datagram protocol session with the PDE.

36. A method that facilitates location determination of a mobile station, comprising:

sending via an HTTP POST over TCP/IP a discovery request for a location of a mobile station; and

sending to the mobile station via HTTP position determining entity information.

37. The method of claim 36, further comprising employing an authentication protocol.

38. The method of claim 36, the authentication protocol comprising at least one of:

Kerberos, public keys, trusted certificates, internet key exchange (IKE), internet protocol security (IPS), and secure socket layers (SSL).