REDUNDANT RADIO FREQUENCY NETWORK HAVING A ROAMING TERMINAL COMMUNICATION PROTOCOL
2 Assignments
0 Petitions
Accused Products
Abstract
Disclosed herein is a redundant network and communication protocol at least including host computers, RF base stations, and roaming terminals. The network may utilize a polling communication protocol such that under heavy traffic conditions, a roaming terminal wishing to initiate communication may be required to wait for at least a predetermined period and determine whether the channel is available for communication. When a hidden terminal is communicating, the roaming terminal may conclude that the communication is taking place upon receiving a polling frame directed to the hidden terminal from the normally silent base station. Inherent redundancy techniques may be used with a spanning tree approach for determining the most efficient pathways from a source to a destination and ensuring that the network adapts to spatial changes or breakdowns within the network.
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Citations
56 Claims
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1-20. -20. (canceled)
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21. In a mobile communication device, a method of beginning a data communication between the mobile communication device and a communication network, the method comprising:
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selecting between a plurality of alternative medium access techniques for the data communication; waiting a period of time that is at least as long as a predetermined time period and determining that a wireless communication channel is available for communication; after said waiting and determining, attempting, over the wireless communication channel, to initiate data communication to the communication network; and if the attempt to initiate data communication to the communication network is successful, then transmitting a series of packets to the communication network, where each two consecutive packet transmissions are separated by no more than the predetermined time period. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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52. In a mobile communication device, a method of beginning a data communication between the mobile communication device and a communication network, the method comprising:
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selecting a parent node of the communication network from a list of alternate parents; after selecting a parent node, selecting between a plurality of alternative medium access techniques for the data communication; waiting a period of time that is at least as long as a predetermined time period and determining that a wireless communication channel is available for communication; after said waiting and determining, attempting, over the wireless communication channel, to initiate data communication to the communication network; and if the attempt to initiate data communication to the communication network is successful, then transmitting a series of packets to the communication network where each two consecutive packet transmissions are separated by no more than the predetermined time period.
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53. In a mobile communication device, a method of beginning a data communication between the mobile communication device and a communication network, the method comprising:
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waking from a sleep state to receive a message from the communication network; after waking, selecting between a plurality of alternative medium access techniques for the data communication; waiting a period of time that is at least as long as a predetermined time period and determining that a wireless communication channel is available for communication; after said waiting and determining, attempting, over the wireless communication channel to initiate data communication to the communication network; and if the attempt to initiate data communication to the communication network is successful, then transmitting a series of packets to the communication network where each two consecutive packet transmissions are separated by no more than the predetermined time period.
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54. A mobile communication device comprising hardware and/or software that operate to begin a data communication between the mobile communication device and a communication network, wherein the hardware and/or software operate to, at least:
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select between a plurality of alternative medium access techniques for the data communication; wait a period of time that is at least as long as a predetermined time period and determine that a wireless communication channel is available for communication; after said waiting and determining, attempt, over the wireless communication channel, to initiate data communication to the communication network; and if the attempt to initiate data communication to the communication network is successful, then transmit a series of packets to the communication network, where each two consecutive packet transmissions are separated by no more than the predetermined time period.
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55. A mobile communication device comprising hardware and/or software that operate to begin a data communication between the mobile communication device and a communication network, wherein the hardware and/or software operate to, at least:
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select a parent node of the communication network from a list of alternate parents; after selecting a parent node, select between a plurality of alternative medium access techniques for the data communication; wait a period of time that is at least as long as a predetermined time period and determine that a wireless communication channel is available for communication; after said waiting and determining, attempt, over the wireless communication channel, to initiate data communication to the communication network; and if the attempt to initiate data communication to the communication network is successful, then transmit a series of packets to the communication network where each two consecutive packet transmissions are separated by no more than the predetermined time period.
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56. A mobile communication device comprising hardware and/or software that operate to begin a data communication between the mobile communication device and a communication network, wherein the hardware and/or software operate to, at least:
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wake from a sleep state to receive a message from the communication network; after waking, select between a plurality of alternative medium access techniques for the data communication; wait a period of time that is at least as long as a predetermined time period and determine that a wireless communication channel is available for communication; after said waiting and determining, attempt, over the wireless communication channel, to initiate data communication to the communication network; and if the attempt to initiate data communication to the communication network is successful, then transmit a series of packets to the communication network where each two consecutive packet transmissions are separated by no more than the predetermined time period.
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Specification