Low-Power Wireless Beaconing Network Supporting Proximal Formation, Separation and Reformation

• US 20130281022A1
• Filed: 06/01/2013
• Published: 10/24/2013
• Est. Priority Date: 02/06/1997
• Status: Abandoned Application

• Current Assignee: Intermec IP Corporation (Honeywell International Inc.)
• Original Assignee: Intermec IP Corporation (Honeywell International Inc.)
• Inventors: Mahany, Ronald L., Kubler, Joseph J., Schuster, Thomas J.
• Application Number:
  US13/907,893
• Publication Number:
  US 20130281022A1
• Time in Patent Office: Days
• US Class Current: 455/41.2
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0219 where the power saving management affects multiple terminals
• CPC Class Codes: H04W 52/0274 by switching on or off the equipment or parts thereof
• CPC Class Codes: H04W 56/002 Mutual synchronization
• CPC Class Codes: H04W 76/19 Connection re-establishment
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

At least one of the wireless devices of a wireless network attempts to reestablish communications with a separated wireless device. Further, the separated wireless device may also attempt to reestablish communication with the wireless network. At least two of the wireless devices may separate from the wireless network to form an alternate wireless network separate from the wireless network. In such case, the at least two wireless devices of the alternate network may rejoin the wireless network after the separation. The wireless devices may establish the wireless network when proximate to one another and operating at a lower power level while continuing operation at a higher power level. The wireless devices establish the wireless network when in a first proximity to one another and continue to communicate while in a second proximity to one another.

Claims

1-26. -26. (canceled)

27. A wireless communication system comprising:

a plurality of wireless devices, each wireless device including a radio capable of transmitting at both a higher power level and a lower power level;

wherein the plurality of wireless devices initialize a wireless network when operating at the lower power level with said plurality of wireless device in close proximity; and

after initialization of the wireless network, said plurality of wireless devices communicate with each other within said wireless network at the higher power level.

28. The wireless communication system of claim 27 wherein the radios of the plurality of wireless devices have a plurality of selectable power levels, and wherein one of said power levels is selectable prior to initialization of the wireless network.

29. The wireless communication system of claim 27 wherein the plurality of wireless devices are placed in close proximity of one another to initiate operation of the wireless network, and wherein operation of the wireless network is initiated at the lower power level through reduced power transmissions reaching wireless devices no more than a few feet away, said plurality of wireless devices after initialization, continuing to communicate at the higher power level where close proximity is not required.

30. A wireless communication system comprising:

first and second wireless devices, said first and second wireless devices selectively operating at a very low power level and at a higher power level, said first wireless device when operating at said very low power level providing a reduced power transmission with a range limited to a very close proximity from said first wireless device;

said first wireless device sending network information at said very low power level so as to be received by said second wireless device only when the second wireless device is within said very close proximity from said first wireless device;

said second wireless device upon receipt of said network information, forming a wireless network with said first wireless device; and

said first and second wireless devices after formation of the wireless network communicating with each other at said higher power level.

31. The wireless communication system of claim 30 with said first and second wireless devices operating at said very low power level during formation of said wireless network so as to provide reduced power transmissions reaching no more than a few feet away.

32. In a wireless communication system, a method of establishing a wireless network, said method comprising

selecting at least two wireless devices from a plurality of wireless devices, each capable of participation within the wireless network in a higher power mode;

placing the at least two wireless devices in close proximity to one another;

establishing the wireless network by interaction of the at least two wireless devices in a lower power mode; and

carrying out wireless network communications between said at least two wireless devices in the higher power mode.

33. In a wireless communication system, the method of claim 32 with said at least two wireless devices operating in said low power mode during establishing of said wireless network so as to provide reduced power transmissions reaching no more than a few feet away.

34. A wireless communication system comprising:

a plurality of wireless devices, said wireless devices together participating in a wireless network when within range of one another;

wherein, at user'"'"'s selection, operation of the wireless network is automatically initiated through very low power radio frequency transmissions of less than minus forty dBm.

35. A wireless communication system according to claim 34, wherein operation of the wireless network is automatically initiated through very low power radio frequency transmissions of not greater than minus sixty dBm.

36. A wireless communication system according to claim 34, wherein operation of the wireless network is automatically initiated through very low power radio frequency transmissions of approximately minus sixty dBm.

37. A wireless communication system comprising:

a plurality of wireless devices, said wireless devices together participating in a wireless network when within range of one another;

wherein operation of the wireless network is automatically initiated for wireless devices selected by the user to be in very close proximity, the initiation of the network for the wireless devices selected by the user taking place through very low power radio frequency transmissions of less than minus forty dBm to avoid unintentional participation in network formation by unselected devices.

38. A wireless communication system according to claim 37, with the initiation of the network for the wireless devices selected by the user taking place through very low power radio frequency transmissions of not greater than minus sixty dBm.

39. A wireless communication system according to claim 37, with the initiation of the network for the wireless devices selected by the user taking place through very low power radio frequency transmissions of approximately minus sixty dBm.