Multiple access wireless network with low latency subnet
First Claim
1. A method of reducing message latency for high priority messages transmitted over a wireless, multiple access network, the method comprising:
- implementing at least one simultaneous messaging protocol so as to create at least two subnets within the network;
designating one of the subnets as a low latency subnet;
configuring the low latency subnet as a contention access subnet;
enabling a plurality of nodes in the network to receive messages simultaneously on the low latency subnet and at least one other of the subnets;
enabling the plurality of nodes to designate messages before they are transmitted as being standard messages or high priority messages; and
causing the nodes to transmit only messages designated as high priority messages over the low latency subnet.
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Accused Products
Abstract
A method is disclosed for minimizing latency for high priority messages without sacrificing subnet bandwidth in a wireless, multiple access network such as Link 16. Nodes are able to simultaneously receive messages on at least two subnets, one of which is designated as a low latency (“LL”) subnet that transmits messages immediately on a contention access basis. A message acknowledgement protocol can be implemented and high priority messages that fail due to collisions or other reasons can be retransmitted. Jitter can be used to detect collisions. Embodiments include a plurality of “standard” and/or LL subnets designated for messages of varied urgency. High priority messages can reserve an acknowledgement timeslot for use only by the message recipient. Link 16 embodiments implement CMN-4, whereby the LL subnet is one of four subnets monitored by each node. Link 16 latencies in the LL network can be limited to less than 40 msec.
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Citations
16 Claims
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1. A method of reducing message latency for high priority messages transmitted over a wireless, multiple access network, the method comprising:
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implementing at least one simultaneous messaging protocol so as to create at least two subnets within the network; designating one of the subnets as a low latency subnet; configuring the low latency subnet as a contention access subnet; enabling a plurality of nodes in the network to receive messages simultaneously on the low latency subnet and at least one other of the subnets; enabling the plurality of nodes to designate messages before they are transmitted as being standard messages or high priority messages; and causing the nodes to transmit only messages designated as high priority messages over the low latency subnet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An apparatus configured for participation as a node in a wireless, multiple access communication network, the apparatus comprising:
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at least one processor, wherein the processor has a user interface; a transceiver in electronic communication with the user interface; at least one antenna coupled to the transceiver; and non-transient software operable on the at least one processor and able to direct the at least one processor to; implement at least one simultaneous messaging protocol so as to create at least two subnets within the network; designate one of the subnets as a low latency subnet; configure the low latency subnet as a contention access subnet; enable a plurality of nodes in the network to receive messages simultaneously on the low latency subnet and at least one other of the subnets; enable the plurality of nodes to designate messages before they are transmitted as being standard messages or high priority messages; and cause the nodes to transmit only messages designated as high priority messages over the low latency subnet.
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Specification