Cellular communications device, method and circuit

• US 20080070618A1
• Filed: 09/15/2006
• Published: 03/20/2008
• Est. Priority Date: 09/15/2006
• Status: Abandoned Application

• Current Assignee: Infineon Technologies AG
• Original Assignee: Infineon Technologies AG
• Inventors: Hjelm, Mikael
• Application Number:
  US11/521,650
• Publication Number:
  US 20080070618A1
• Time in Patent Office: Days
• US Class Current: 455/552.1
• CPC Class Codes: H04M 1/725 Cordless telephones user interfaces specially adapted therefor H04M1/724
• CPC Class Codes: H04M 2250/10 including a GPS signal receiver
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A cellular-communications device comprises a cellular-communications transceiver to communicate via a cellular-communications system; a local-communications transceiver to communicate via a local-communications system; and a switch coupled to said local-communications transceiver to switch it on when a probability value indicates, that said cellular-communications device is within a communications range of a base station of said local-communications system. A communications method comprises providing communication via a cellular-communications system; and switching on communication via a local-communications system when within a communications range of a base station of said local-communications system based a probability value.

Claims

1. A cellular-communications device, comprising:

a cellular-communications transceiver to communicate via a cellular-communications system;

a first local-communications transceiver to communicate via a first local-communications system; and

a switch coupled to said first local-communications transceiver to switch it on when a first probability value indicates that said cellular-communications device is within a first communications range of a first base station of said first local-communications system.

2. The cellular-communications device of claim 1, wherein:

said first probability value is based on time.

3. The cellular-communications device of claim 2, further comprising:

a timer coupled to said switch to provide time information.

4. The cellular-communications device of claim 1, wherein:

said first probability value is based on a location of said cellular-communications device.

5. The cellular-communications device of claim 4, further comprising:

a locator coupled to said switch to determine said location of said cellular-communications device.

6. The cellular-communications device of claim 5, wherein:

said locator is adapted to operate with a satellite navigation system.

7. The cellular-communications device of claim 6, wherein:

said satellite navigation system is one of GPS, A-GPS, and Galileo.

8. The cellular-communications device of claim 5, wherein:

said locator is adapted to operate with triangulation.

9. The cellular-communications device of claim 8, wherein:

said triangulation is based on one of cellular base stations and broadcasting stations.

10. The cellular-communications device of claim 9, wherein:

said broadcasting stations are TV stations.

11. The cellular-communications device of claim 5, wherein:

said locator is adapted to operate with identifications of cellular base stations.

12. The cellular-communications device of claim 5, wherein:

said locator is adapted to track said location of said cellular-communications device from a previous location of said cellular-communications device.

13. The cellular-communications device of claim 5, wherein:

said locator is adapted to determine said location of said cellular-communications device from an Earth magnetic field.

14. The cellular-communications device of claim 5, further comprising:

a memory coupled to said switch to store first location information of said first base station.

15. The cellular-communications device of claim 14, wherein:

said first location information comprises;

position information of said first base station, and

information on said first communications range of said first base station.

16. The cellular-communications device of claim 14, wherein:

said device is adapted to store said first location information in said memory based on one user interaction and signal information of said first base station.

17. The cellular-communications device of claim 1, wherein:

said switch is coupled to said cellular-communications transceiver to switch it off when said first local-communications transceiver is switched on.

18. The cellular-communications device of claim 1, wherein:

said first local-communications transceiver is adapted to operate according to one of a DECT standard, a WLAN standard, a Bluetooth standard and a UWB standard.

19. The cellular-communications device of claim 1, further comprising:

a second local-communications transceiver to communicate via a second local-communications system; and

wherein;

said switch is coupled to said second local-communications transceiver to switch it on when a second probability value indicates, that said cellular-communications device is within a second communications range of a second base station of said second local-communications system.

20. The cellular-communications device of claim 19, wherein:

said switch is coupled to said first local-communications transceiver to switch it off when said second local-communications transceiver is switched on.

21. The cellular-communications device of claim 20, wherein:

said second local-communications transceiver is adapted to operate according to one of a DECT standard, a WLAN standard, a Bluetooth standard, a UWB standard, a GSM standard, and a UMTS standard.

22. A mobile phone, comprising:

a cellular-communications transceiver to communicate via a cellular-communications system;

a local-communications transceiver to communicate via a local-communications system; and

a switch coupled to said local-communications transceiver to switch it on when location information of said cellular-mobile phone and location information of a base station of said local-communications system indicate, that said mobile phone is within a communications range of said base station.

23. A circuit, comprising:

a cellular-communications circuit to communicate via a cellular-communications system;

a local-communications circuit to communicate via a local-communications system; and

a switch coupled to said local-communications circuit to switch it on when location information of said communications circuit and location information of a base station of said local-communications system indicate, that said communications circuit is within a communications range of said base station.

24. The circuit of claim 23, wherein:

said communications circuit is situated on an integrated circuit.

25. A communications method, comprising:

providing communication via a cellular-communications system; and

switching on communication via a local-communications system when within a communications range of a base station of said local-communications system based a probability value.

26. The communications method of claim 25, wherein:

said probability value is based on time.

27. The communications method of claim 26, further comprising:

providing time information.

28. The communications method of claim 25, wherein:

said probability value is based on a location of said communications method.

29. The communications method of claim 28, further comprising:

determining said location of said communications method.

30. The communications method of claim 29, wherein:

said determining comprises;

using a satellite navigation system.

31. The communications method of claim 30, wherein:

said satellite navigation system is one of GPS, A-GPS, and Galileo.

32. The communications method of claim 29, wherein:

said determining comprises;

using triangulation.

33. The communications method of claim 32, wherein:

said triangulation is based on one of cellular base stations and broadcasting stations.

34. The communications method of claim 33, wherein:

said broadcasting stations are TV stations.

35. The communications method of claim 29, wherein:

said determining comprises;

using identifications of cellular base stations.

36. The communications method of claim 29, wherein:

said determining comprises;

tracking said location of said communications method from a previous location of said communications method.

37. The communications method of claim 29, wherein:

said determining comprises;

determining said location of said communications method from an Earth magnetic field.

38. The communications method of claim 29, further comprising:

storing location information of said base station.

39. The communications method of claim 38, wherein:

said location information comprises;

position information of said base station, and

information on said communications range of said base station.

40. The communications method of claim 38, wherein:

said storing comprises;

storing said location information based on user interaction.

41. The communications method of claim 38, wherein:

said storing comprises;

storing said location information based on signal information of said base station.

42. The communications method of claim 25, further comprising:

switching off communication via said cellular-communications when communications via said local-communications is switched on.

43. The communications method of claim 25, wherein:

said local-communications is according to a DECT standard, a WLAN standard, a Bluetooth standard, and a UWB standard.