MULTI-PATH RADIO TRANSMISSION INPUT/OUTPUT DEVICES, NETWORK, SYSTEMS AND METHODS WITH ON DEMAND, PRIORITIZED ROUTING PROTOCOL
First Claim
Patent Images
1. An input/output device comprising:
- a transmitter configured to generate a radio frequency signal transmission;
a receiver configured to receive a radio frequency signal transmission; and
a processor-based control coordinating transmissions of radio frequency signal transmissions in response to received signal transmissions in a multi-signal path transmission network, the processor-based control configured to;
receive a route request including a destination for a proposed communication over the network;
determine whether the input/output device is the destination, and, if so, generate and transmit a route reply message without delay; and
if the input/output device is not the destination, determine whether a signal path to the destination from the input/output device to the destination is available, and if a signal path to the destination is available, generate and transmit a route reply message after at least a first predetermined amount of delay.
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Abstract
Devices, networks, systems and methods for coordinating communications on multi-path radio transmission mesh networks include delaying replies to route requests based on available path metrics to ensure the best available connection routes through the network can be understood and utilized.
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Citations
42 Claims
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1. An input/output device comprising:
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a transmitter configured to generate a radio frequency signal transmission; a receiver configured to receive a radio frequency signal transmission; and a processor-based control coordinating transmissions of radio frequency signal transmissions in response to received signal transmissions in a multi-signal path transmission network, the processor-based control configured to; receive a route request including a destination for a proposed communication over the network; determine whether the input/output device is the destination, and, if so, generate and transmit a route reply message without delay; and if the input/output device is not the destination, determine whether a signal path to the destination from the input/output device to the destination is available, and if a signal path to the destination is available, generate and transmit a route reply message after at least a first predetermined amount of delay. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 38, 39, 42)
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15. A multi-path radio communications network for monitoring and controlling an industrial process, the network comprising
a plurality of processor-based radio devices configured to wirelessly communicate in a mesh network wherein each radio communicates with multiple other radio devices in the mesh network, and at least one of the plurality of processor-based radio device is configured to: -
receive a route request including a destination for a proposed communication over the network; determine whether a path to the destination exists from the input/output device to the destination; and if a path to the destination exists, generate and transmit a route reply message according to a prioritized communication protocol after at least a predetermined time delay, the time delay being dependent on a path metric corresponding to the path. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 40, 41)
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24. A multi-path radio communications system comprising:
a plurality of processor based radio devices configured to wirelessly communicate with one another in a mesh network having a frequency hopping spread spectrum topology, each of the plurality of processor based radio devices configured to; receive a route request including a destination for a proposed communication over the network; determine whether a path to the destination exists to the destination; and if only an indirect path to the destination exists, generate and transmit a route reply message according to a prioritized communication protocol utilizing a selected one of a plurality of predetermined time windows for response. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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32. A method for prioritizing communications between radio devices in a multi-path radio communications system including a plurality of processor based radio devices configured to wirelessly communicate with one another in a mesh network, the method implemented in process based radio devices and comprising:
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receiving, with multiple processor based station radio devices, a route request generated by a source radio, wherein the route request includes a destination for a proposed communication over the network; determining whether a path to the destination exists from the multiple processor based station radio devices to the destination; and prioritizing the transmission of route replies to the source radio from respective ones of the multiple processor based station radio devices wherein paths to the destination are determined to exist, wherein prioritizing the transmission of route replies comprises delaying transmission of route replies based on a path metric for each respective one of the processor based station radio devices. - View Dependent Claims (33, 34, 35, 36, 37)
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Specification