Multi-network location services support

• US 20050186967A1
• Filed: 12/16/2004
• Published: 08/25/2005
• Est. Priority Date: 02/20/2004
• Status: Abandoned Application

• Current Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Ozluturk, Fatih
• Application Number:
  US11/014,253
• Publication Number:
  US 20050186967A1
• Time in Patent Office: Days
• US Class Current: 455/456.100
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Abstract

Location of a portable device with a transmitter, such as a wireless transmit/receive unit (WTRU) in a cellular telecommunications network, is obtained by a primary network augmented by data obtained from a diverse network. In a particular configuration, changes of the indication of the location of the portable device are used to update positional information, such as positional information obtained from a GPS receiver.

Claims

1. A method for estimating location of a wireless transmit/receive unit (WTRU) in a wireless network, in which the wireless network includes a cellular network controller and at least one base station for communication with users through a plurality of WTRUs, and in which a diverse network provides further communication services, the method comprising:

establishing communication with a user WTRU; and

using the location data obtained from the diverse network to provide data concerning location of the user WTRU.

2. The method of claim 1, comprising combining the location data obtained from the diverse network with a database, the database associating the location data obtained from the diverse network with further data.

3. The method of claim 1, comprising combining the location data obtained from the diverse network with a database, the database associating the location data obtained from the diverse network with further data, where the further data includes one of geographical location data, a database associating signal values with possible locations, a predetermination of the accuracy of location data obtained by the diverse network, or an association between position fixes or values provided by the diverse network with location determinations of known accuracy.

4. The method of claim 1, comprising determining the locations by comparing signals from the user WTRU with signals from the diverse network.

5. The method of claim 1, comprising:

receiving GPS data from the user'"'"'s WTRU during times of availability of the GPS data, thereby providing primary location data concerning location of the user'"'"'s WTRU;

using the locations of the diverse network during times of unavailability of the GPS data, thereby providing secondary location data concerning location of the user'"'"'s WTRU; and

using the primary location data to make correction adjustments to the secondary location data, thereby providing continuity of location information of the user'"'"'s WTRU by combining the GPS data with the secondary location data.

6. The method of claim 1, comprising combining the location data obtained from the locally controlled network with a database to associate the location data obtained from the locally controlled network with the data which includes one of geographical location data, a database associating signal values with possible locations, a predetermination of the accuracy of location data obtained by the locally controlled network, or an association between position fixes or values provided by the locally controlled network with location determinations of known accuracy.

7. The method of claim 6 wherein the wireless network including the cellular network controller includes a cellular network for communication with users through a plurality of wireless transmit/receive units (WTRUs), at least one base station, and in which the cellular network controller effects control of a radio interface between the base station and the WTRU, and the diverse network controls a radio interface primarily by the WTRU and a local station of the diverse network substantially independently of network control.

8. The method of claim 6, comprising providing the locally controlled network as an access point.

9. The method of claim 6, comprising:

providing the locally controlled network as an access point;

receiving GPS data from the user'"'"'s WTRU during times of availability of the GPS data, thereby providing primary location data concerning location of the user'"'"'s WTRU;

using the locations of the locally controlled network during times of unavailability of the GPS data, thereby providing secondary location data concerning location of the user'"'"'s WTRU; and

using the primary location data to make correction adjustments to the secondary location data, thereby providing continuity of location information of the user'"'"'s WTRU by combining the GPS data with the secondary location data.

10. The method of claim 6, comprising:

receiving GPS data from the user'"'"'s WTRU during times of availability of the GPS data, thereby providing primary location data concerning location of the user'"'"'s WTRU;

using the locations of the locally controlled network during times of unavailability of the GPS data, thereby providing secondary location data concerning location of the user'"'"'s WTRU; and

using the primary location data to make correction adjustments to the secondary location data, thereby providing continuity of location information of the user'"'"'s WTRU by combining the GPS data with the secondary location data.

11. The method of claim 6, comprising:

the cellular network effecting control of a radio interface between the base station and the WTRU, with the diverse network controlling a radio interface substantially independently of the network control;

establishing communication with a user WTRU; and

using the location data obtained from the diverse network to provide data concerning location of the user WTRU.

12. The method of claim 11, comprising combining the location data obtained from the diverse network with a database, the database associating the location data obtained from the diverse network with further data, where the further data includes one of geographical location data, a database associating signal values with possible locations, a predetermination of the accuracy of location data obtained by the diverse network, or an association between position fixes or values provided by the diverse network with location determinations of known accuracy.

13. A method for providing updated position information for locating a portable device having a transmitter and a GPS receiver in instances of intermittency of GPS geolocation, the method comprising:

providing a primary communications network and establishing a communications link between the portable device and the communications network;

obtaining further location data of the portable device by use of a diverse communications network;

using the further location data to determine changes in location of the portable device during interruptions in GPS geolocation.

14. The method of claim 13 wherein the primary communication network includes a cellular network for communication with users through a plurality of wireless transmit/receive units (WTRUs), at least one base station, and in which the primary network includes a cellular network controller, the cellular network controller effects control of a radio interface between the base station and the WTRU, and the diverse network controls a radio interface primarily by the WTRU and a local station of the diverse network substantially independently of the network control.

15. The method of claim 13 further comprising using a database, and combining data in the database with the obtained further location data.

16. The method of claim 13, comprising combining the location data obtained from the diverse communications network with a database, the database associating the location data obtained from the diverse communications network with further data, where the further data includes one of geographical location data, a database associating signal values with possible locations, a predetermination of the accuracy of location data obtained by the diverse communications network, or an association between position fixes or values provided by the diverse communications network with location determinations of known accuracy.

17. The method of claim 13, comprising determining the locations by comparing signals from the user WTRU with signals from the diverse communications network.

18. A system for providing location information in a wireless network, in which the wireless network includes a cellular network controller, and at least one base station, for communication with users through a plurality of wireless transmit/receive units (WTRUs), the method comprising:

a communications link between the wireless network and at least one diverse network;

a circuit for obtaining location data from at least one of the network and a user WTRU;

a circuit for receiving further location data from the diverse network; and

a circuit for combining the further location data with location data from at least one of the network or the user WTRU, and using the combined location data to provide a location estimate.

19. The system of claim 18 wherein the wireless network includes a cellular network for communication with users through a plurality of wireless transmit/receive units (WTRUs), at least one base station, and in which the primary network includes a cellular network controller, the cellular network effects control of a radio interface between the base station and the WTRU, and the diverse network controls a radio interface primarily by the WTRU and a local station of the diverse network substantially independently of the network control.

20. The system of claim 18, comprising a database for storing information concerning the data from the diverse network.

21. The system of claim 18, comprising a circuit for determining the locations by comparing signals from the user WTRU with signals from the diverse network.

22. The system of claim 18, comprising:

a circuit for receiving GPS data from the user'"'"'s WTRU during times of availability of the GPS data, thereby providing primary location data concerning location of the user'"'"'s WTRU;

a circuit for using the locations of the diverse network during times of unavailability of the GPS data, thereby providing secondary location data concerning location of the user'"'"'s WTRU; and

a circuit for using data obtained by the network from at least one of the network and the diverse network to make correction adjustments to the GPS data, thereby providing continuity of location information of the user'"'"'s WTRU by combining the GPS data with the data obtained by the network.

23. A wireless transmit/receive unit (WTRU) capable of providing location data to a first wireless network, and capable of establishing a wireless communication link with a diverse network, the WTRU comprising:

circuitry configured to provide data to the first network identifying existence of the wireless communications link with the diverse network, thereby providing an indication to the first network of a location of the WTRU in a reception area of the diverse network.

24. The WTRU of claim 23 wherein the first wireless network provides communication with the WTRU in a cellular network environment, whereby the WTRU communicates with the wireless network through at least one base station in a shared air interface, and the diverse network controls a radio interface primarily by the WTRU and a local station of the diverse network substantially independently of the network control.

25. The WTRU of claim 23, further comprising:

a circuit for establishing a wireless the first network and the WTRU;

a circuit for receiving GPS data, thereby providing primary location data concerning location of the user'"'"'s WTRU during availability of the GPS data.

26. The WTRU of claim 23, further comprising:

a circuit for receiving GPS data and establishing a geopositional fix from the received GPS data;

a circuit for providing the first network with the geopositional fix;

a circuit configured for indicating to the first network a coincidence of the geopositional fix and a predetermined signal status between the WTRU and the diverse network, thereby providing the first network with an indication of geolocation coincident with the predetermined signal status.

27. A system for providing location information in a wireless network, in which the wireless network includes a cellular network controller, and at least one base station, for communication with users through a plurality of wireless transmit/receive units (WTRUs), the method comprising:

a communications link between the wireless network and at least one locally controlled network;

a circuit for obtaining location data from at least one of the network and a user WTRU;

a circuit for receiving further location data from the locally controlled network; and

a circuit for combining the further location data with location data from at least one of the network or the user WTRU, and using the combined location data to provide a location estimate.

28. The system of claim 27 wherein the diverse network controls a radio interface primarily by the WTRU and a local station of the diverse network substantially independently of the network control.

29. The system of claim 27, wherein the locally controlled network provides an access point (AP) interface.

30. The system of claim 29, comprising a circuit for determining the locations by comparing signals from the user WTRU with signals from the locally controlled network.

31. The system of claim 29, comprising:

a circuit for receiving GPS data from the user'"'"'s WTRU during times of availability of the GPS data, thereby providing primary location data concerning location of the user'"'"'s WTRU;

a circuit for using the locations of the locally controlled network during times of unavailability of the GPS data, thereby providing secondary location data concerning location of the user'"'"'s WTRU; and

a circuit for using data obtained by the network from at least one of the network and the locally controlled network to make correction adjustments to the GPS data, thereby providing continuity of location information of the user'"'"'s WTRU by combining the GPS data with the data obtained by the network.

32. A method for estimating location of a wireless transmit/receive unit (WTRU) in communication with a first network, the method comprising:

establishing a communication link with a diverse wireless network; and

using the location data obtained from the diverse network to provide data to the first network concerning location of the user WTRU.

33. The method of claim 32, comprising combining the location data obtained from the diverse network with a database, the database associating the location data obtained from the diverse network with further data, where the further data includes one of geographical location data, a database associating signal values with possible locations, a predetermination of the accuracy of location data obtained by the diverse network, or an association between position fixes or values provided by the diverse network with location determinations of known accuracy.

34. The method of claim 32, comprising:

receiving GPS data from the user'"'"'s WTRU during times of availability of the GPS data, thereby providing primary location data concerning location of the user'"'"'s WTRU; and

using the locations of the diverse network during times of unavailability of the GPS data, thereby providing secondary location data concerning location of the user'"'"'s WTRU.