Radio frequency local area network

• US 20050232213A1
• Filed: 05/24/2005
• Published: 10/20/2005
• Est. Priority Date: 10/01/1991
• Status: Abandoned Application

• Current Assignee: Robert C. Meier
• Original Assignee: Robert C. Meier
• Inventors: Meier, Robert C.
• Application Number:
  US11/136,146
• Publication Number:
  US 20050232213A1
• Time in Patent Office: Days
• US Class Current: 370/338
• CPC Class Codes: G06F 15/0225 User interface arrangements, e.g. keyboard, display; Interfaces to other computer systems
• CPC Class Codes: G06K 7/1098 the scanning arrangement having a modular construction
• CPC Class Codes: H01Q 1/007 specially adapted for indoor communication
• CPC Class Codes: H01Q 1/241 used in mobile communications, e.g. GSM H01Q1/247, H01Q1/248 take precedence
• CPC Class Codes: H01Q 21/24 Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction circularly polarised patch antennas H01Q9/0428; circularly polarised horns H01Q13/0241; cross-polarised horns H01Q13/0258; polarisation converters H01Q15/242; cross-polarised rear feeds H01Q19/136; crossed polarisation dual antenna H01Q25/001
• CPC Class Codes: H04B 1/3833 Hand-held transceivers
• CPC Class Codes: H04L 1/0025 Transmission of mode-switching indication
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 1/1867 Arrangements specially adapted for the transmitter end
• CPC Class Codes: H04L 12/12 Arrangements for remote connection or disconnection of substations or of equipment thereof
• CPC Class Codes: H04L 12/462 LAN interconnection over a bridge based backbone
• CPC Class Codes: H04L 45/00 Routing or path finding of packets in data switching networks routing or path finding in wireless networks H04W40/00
• CPC Class Codes: H04L 45/04 Interdomain routing, e.g. hierarchical routing
• CPC Class Codes: H04L 45/44 Distributed routing
• CPC Class Codes: H04L 45/48 Routing tree calculation
• CPC Class Codes: H04L 47/6225 Fixed service order, e.g. Round Robin
• CPC Class Codes: H04L 49/90 Buffering arrangements
• CPC Class Codes: H04L 49/9057 Arrangements for supporting packet reassembly or resequencing
• CPC Class Codes: H04L 69/14 Multichannel or multilink protocols
• CPC Class Codes: H04L 69/32 Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
• CPC Class Codes: H04L 69/323 : in the physical layer [OSI layer 1]
• CPC Class Codes: H04L 69/324 : in the data link layer [OSI layer 2], e.g. HDLC
• CPC Class Codes: H04L 69/325 : in the network layer [OSI layer 3], e.g. X.25 H04L69/16 takes precedence
• CPC Class Codes: H04L 69/326 : in the transport layer [OSI layer 4] H04L69/16 takes precedence
• CPC Class Codes: H04L 9/40 : Network security protocols
• CPC Class Codes: H04W 40/02 : Communication route or path selection, e.g. power-based or shortest path routing
• CPC Class Codes: H04W 40/22 : using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
• CPC Class Codes: H04W 40/246 : Connectivity information discovery
• CPC Class Codes: H04W 40/28 : for reactive routing
• CPC Class Codes: H04W 40/30 : for proactive routing
• CPC Class Codes: H04W 40/36 : due to handover
• CPC Class Codes: H04W 8/26 : Network addressing or numbering for mobility support
• CPC Class Codes: H04W 84/04 : Large scale networks; Deep hierarchical networks
• CPC Class Codes: H04W 84/12 : WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/06 : adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: H04W 88/08 : Access point devices
• CPC Class Codes: H04W 88/14 : Backbone network devices
• CPC Class Codes: H04W 92/20 : between access points

Abstract

An apparatus and a method for routing data in a radio data communication system having one or more host computers, one or more intermediate base stations, and one or more RF terminals organizes the intermediate base stations into an optimal spanning-tree network to control the routing of data to and from the RF terminals and the host computer efficiently and dynamically. Communication between the host computer and the RF terminals is achieved by using the network of intermediate base stations to transmit the data.

Claims

1-24. -24. (canceled)

25. A bridging node for a communication network, the bridging node comprising:

at least one wireless transceiver adapted to communicate information between the bridging node and a mobile communication device; and

a memory adapted to store communication pathway information utilized for communicating with the mobile communication device;

wherein, the bridging node is adapted to dynamically revise the stored communication pathway information based, at least in part, on location of the mobile communication device relative to the bridging node.

26. The bridging node of claim 25, wherein the bridging node is adapted to dynamically revise the stored communication pathway information based, at least in part, on location of the mobile communication device relative to a second bridging node.

27. The bridging node of claim 25, wherein:

the memory is adapted to store information of mobile communication device location; and

the bridging node is adapted to dynamically revise the stored information of mobile communication device location.

28. The bridging node of claim 25, wherein the communication pathway information comprises communication packet routing information indexed by mobile communication device address.

29. The bridging node of claim 25, wherein the bridging node is adapted to communicate with a second bridging node.

30. The bridging node of claim 29, wherein the bridging node is adapted to dynamically revise stored communication pathway information based, at least in part, on communications with the second bridging node.

31. The bridging node of claim 29, wherein the bridging node is adapted to:

receive logical distance information from the second bridging node indicating logical distance between the second bridging node and a third node of the communication network; and

utilize the received logical distance information to determine whether to attach to the second bridging node.

32. The bridging node of claim 25, wherein the bridging node is adapted to transmit information indicating logical distance between the bridging node and a third node of the communication network.

33. A bridging node for a communication network, the bridging node comprising:

at least one wireless transceiver adapted to communicate information between the bridging node and a mobile communication device and to communicate information between the bridging node and a second bridging node; and

a memory adapted to store communication pathway information that is utilized for communicating information with the mobile communication device;

wherein the bridging node is adapted to dynamically revise the communication pathway information.

34. The bridging node of claim 33, wherein the bridging node is adapted to dynamically revise the communication pathway information based, at least in part, on information obtained from the second bridging node.

35. The bridging node of claim 33, wherein the at least one wireless transceiver adapted to communicate information between the bridging node and a mobile communication device is independent of the at least one wireless transceiver adapted to communicate information between the bridging node and a second bridging node.

36. The bridging node of claim 33, wherein the communication pathway information comprises a table of communication packet routing information indexed by mobile communication device address.

37. The bridging node of claim 33, wherein the communication pathway information comprises spanning tree routing table information.

38. The bridging node of claim 33, further comprising a communication interface adapted to communicatively couple the bridging node to a first communication subnet, and wherein the second bridging node is communicatively coupled to a second communication subnet.

39. The bridging node of claim 33, wherein the bridging node is adapted to:

receive logical distance information from the second bridging node indicating logical distance between the second bridging node and a third node of the communication network, and

utilize the received logical distance information to determine whether to attach to the second bridging node.

40. The bridging node of claim 33, wherein the bridging node is adapted to transmit information indicating logical distance between the bridging node and a third node of the communication network.

41. The bridging node of claim 33, wherein the bridging node is adapted to dynamically revise the stored communication pathway information based, at least in part, on location of the mobile communication device relative to the second bridging node.

42. The bridging node of claim 33, wherein:

the memory is adapted to store information of mobile communication device location; and

the bridging node is adapted to dynamically revise the information of mobile communication device location.

43. A bridging node for a communication network, the bridging node comprising:

at least one wireless transceiver adapted to communicate information between the bridging node and a plurality of mobile communication devices and to communicate information between the bridging node and a second bridging node; and

a memory adapted to store communication pathway information, indexed by respective addresses of the mobile communication devices, utilized for communicating with the mobile communication devices.

44. The bridging node of claim 43, wherein the bridging node is adapted to dynamically revise the communication pathway information to maintain efficient delivery of communication packets among the mobile communication devices.

45. The bridging node of claim 43, wherein the bridging node is adapted to dynamically revise the stored communication pathway information based, at least in part, on location of the mobile communication devices relative to the bridging node.

46. The bridging node of claim 43, wherein the bridging node is adapted to:

receive logical distance information from the second bridging node indicating logical distance between the second bridging node and a third node of the communication network; and

utilize the received logical distance information to determine whether to attach to the second bridging node.

47. The bridging node of claim 43, wherein the bridging node is adapted to transmit information indicating logical distance between the bridging node and a third node of the communication network.