Short range RF network

• US 6,831,896 B1
• Filed: 07/11/2000
• Issued: 12/14/2004
• Est. Priority Date: 07/11/2000
• Status: Active Grant

• Current Assignee: Nokia Solutions and Networks US LLC (Nokia Corporation)
• Original Assignee: Nokia Corporation
• Inventors: Hiltunen, Miska, Heinonen, Tomi, Lempiö, Jarkko
• Primary Examiner(s): Hsu, Alpus H.
• Assistant Examiner(s): Nguyen, Toan D.
• Application Number:
  US09/614,508
• Time in Patent Office: 1,617 Days
• Field of Search: 370/256, 370/329, 370/338, 370/346, 370/349, 370/351, 370/401, 370/408, 370/252
• US Class Current: 370/252
• CPC Class Codes: H04W 40/246 Connectivity information discovery
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: H04W 84/10 Small scale networks; Flat hierarchical networks
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

A network including a host device and a plurality of transceiver beacons for communicating data from terminal devices interacting with the beacons, to the host. The beacons include identification codes used by the host for establishing wireless communication links either between a beacon and the host, or between two or more beacons. A routing mechanism is included in the beacons for selecting a most favorable transmission path among available paths for communicating data to the host.

Claims

1. A short range RF network for providing wireless communication of data in a local environment to a wireless user terminal, comprising:

a host device connectable to an external network;

first primary beacon having a first operating range and disposed at a distance from said host within said operating range, said first primary beacon having a processor, a transceiver and a first identification code recognizable by the host for establishing a first wireless communication link between said first primary beacon and said host for facilitating transmission of the data along said first wireless communication link;

a second primary beacon having a second operating range and disposed at a distance from said host within said second operating range, said second primary beacon having a processor, a transceiver and a second identification code recognizable by the host for establishing a second wireless communication link between said second primary beacon and said host for facilitating transmission of the data along said second wireless communication link; and

a secondary beacon having a secondary beacon operating range and disposed at a distance from said first and said second primary beacons so that said first and said second primary beacons are within said secondary beacon operating range, said secondary beacon having a processor, a transceiver and a secondary beacon identification code recognizable by said host for establishing wireless communication links with said first primary beacon and said second primary beacon, said secondary beacon including means for determining whether to communicate with said host via communication with one of said first and second primary beacons depending on criteria associated with said first and said second primary beacons.

2. The network of claim 1, wherein said criteria includes a measurement of data traffic present at one of said first and said second primary beacons.

3. The network of claim 1, wherein said criteria includes a measurement of data traffic present at said first and said second primary beacons.

4. The network of claim 1, wherein one of said first and second primary beacons is at a distance closer to said secondary beacon than said other of said first and second primary beacons, and wherein said criteria includes measurement of data traffic present at said closer primary beacon.

5. The network of claim 1, wherein said determining means comprises means for conducting a periodic status check of said first and second primary beacons.

6. The network of claim 1, wherein each of said first and said second primary beacons has corresponding message queues indicating an amount and priority of data awaiting transmission at each of said primary beacons, and wherein said determining means comprises means for communicating the message queues between said first and said second primary beacons and said secondary beacon to determine a most preferred transmission path from said secondary beacon to the host.

7. The network of claim 1, wherein each of said first and second primary beacons and said secondary beacon is powered from one of an electrical outlet, solar energy and a battery.

8. The network of claim 7, wherein one of said first and second primary beacons and said secondary beacon further comprise an electrical appliance interface for powering an electrical appliance from an electrical outlet occupies by said one beacon.

9. The network of claim 1, wherein said primary and said secondary beacons are powered by battery cells.

10. The network of claim 1, wherein said primary and said secondary beacons comprise visual indicators for conveying an operation mode of said beacons.

11. The network of claim 1, wherein said primary and said secondary beacons comprise visual indicators for conveying an operation mode of said beacons.

12. The network of claim 1, wherein the host is capable of interfacing with a second host having primary and secondary beacons in communication with the second host for providing communication between a first terminal device interfaced with the host and a second terminal device interfaced with the second host.

13. The network of claim 1, wherein one of said primary and said secondary beacons include means for broadcasting a message to the wireless user terminal when the wireless terminal device is within the operating range of said one of said beacons.

14. The network of claim 13, wherein said broadcast message comprises an advertisement.

15. The wireless local area network of claim 1, wherein said first and second operating ranges are between zero and 300 meters.

16. The network of claim 1, wherein said first and said second primary beacons each comprise a plurality of primary beacons.

17. The network of claim 16, wherein said secondary beacon comprises a plurality of secondary beacons.

18. The system of claim 17, wherein said beacons are positioned at locations upstream;

and downstream relative to each other, each of said beacons comprising at least three Bluetooth chips including a master chip, a slave clip, and an interface chip, each master chip being capable of communicating with a slave chip in at least one downstream beacon, each slave chip being capable of communicating with a master chip in at least one upstream beacon, and each interface chip being capable of communicating with user terminal devices located within the corresponding operating range of its respective beacon.

19. The network of claim 1, wherein said secondary beacon comprises a plurality of secondary beacons.

20. The network of claim 1, wherein said host has a host operating range, a host processor, a host transceiver and a host identification code.

21. The system of claim 1, wherein each of said beacons comprises a communication device for wirelessly transmitting data.

22. The system of claim 21, wherein said communication device in said each beacon comprises a plurality of communication devices.

23. The system of claim 22, wherein said plurality of communication devices further comprises a slave communication device and a master communication device.

24. The system of claim 22, wherein said plurality of communication devices comprises a plurality of Bluetooth chips.

25. The system of claim 21, wherein said communication device comprises a Bluetooth chip.

26. A method of wirelessly communicating data in a local environment between a host device and a wireless terminal device, comprising the steps of:

disposing a first primary beacon having a first operating range at a distance from the host within said first operating range, said first primary beacon having a processor, a transceiver and a first identification code recognizable by the host for establishing a first wireless communication link between said first primary beacon and said host for facilitating transmission of the data along said first wireless communication link;

disposing a second primary beacon having a second operating range at a distance from the host within said second operating range, said second primary beacon having a processor, a transceiver and a second identification code recognizable by the host for establishing a second wireless communication link between said second primary beacon and said host for facilitating transmission of the data along said second wireless communication link;

disposing a secondary beacon having a secondary beacon operating range at a distance from said first and said second primary beacons within said secondary beacon operating range, said secondary beacon having a processor, a transceiver and a secondary beacon identification code recognizable by the host for establishing a first secondary beacon wireless communication link with said first primary beacon and a second secondary beacon communication link with said second primary beacon; and

determining, based on criteria associated with said first and said second primary beacons, which of said first secondary beacon wireless communication link and said second secondary beacon wireless communication link to use for transmission of the data from said beacon to the host via communication with one of said first and said second primary beacons.

27. The method of claim 26, wherein said determining step comprises the steps of establishing message queues for each of said first and second primary beacons and said secondary beacon to indicate an amount and priority of data awaiting transmission at each of said first and second primary beacons, and communicating the message queues to said secondary beacon to determine a most preferred transmission path.

28. The method of claim 26, wherein the host is capable of interfacing with the Internet and wherein the wireless terminal device is a mobile telephone so that the mobile telephone can communicate with the Internet through said network.

29. The method of claim 28, wherein the host is capable of interfacing with a second host having beacons interfaced with the second host.

30. The method of claim 26, wherein said criteria includes a measurement of data traffic present at one of said first and said second primary beacons.

31. The method of claim 26, wherein said criteria includes a measurement of data traffic present at said first and said second primary beacons.

32. The method of claim 26, wherein one of said first and second primary beacons is at a distance closer to said secondary beacon than said other of said first and second primary beacons, and wherein said criteria includes measurement of data traffic present at said closer primary beacon.

33. The method of claim 26, wherein said determining step comprises the step of conducting a periodic status check of said first and second primary beacons.

34. The method of claim 26, wherein each of said first and said second primary beacons has corresponding message queues indicating an amount and priority of data awaiting transmission at each of said primary beacons, and wherein said determining step comprises the step of communicating the message queues between said first and said second primary beacons and said secondary beacon to determine a most preferred transmission path from said secondary beacon to the host.

35. The method of claim 26, wherein each of said beacons comprises a communication device for wirelessly transmitting data.

36. The method of claim 35, wherein said communication device in said each beacon comprises a plurality of communication devices.

37. The method of claim 36, wherein said plurality of communication devices further comprises a slave communication device and a master communication device.

38. The method of claim 36, wherein said plurality of communication devices comprises a plurality of Bluetooth chips.

39. The method of claim 35, wherein said communication device comprises a Bluetooth chip.

40. The method of claim 26, wherein said first and second primary beacons each comprise a plurality of primary beacons and wherein said secondary beacon comprises a plurality of secondary beacons.

41. The method of claim 40, wherein said beacons are positioned at locations upstream and downstream relative to each other, each of said beacons comprising at least three Bluetooth chips including a master chip, a slave chip, and an interface chip, each master chip being capable of communicating with a slave chip in at least one downstream beacon, each slave chip being capable of communicating with a master chip in at least one upstream beacon, and each interface chip being capable of communicating with user terminal devices located within the corresponding operating range of its respective beacon.