Communication system allowing node identification
First Claim
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1. A method of communicating data from a node comprising:
- receiving a first signal, the first signal including first information used to align a response signal from the node;
sending the response signal from the node, wherein the response signal includes second information which the node randomly generated;
receiving a second signal, wherein a portion of the second signal includes the second information which the node randomly generated;
the second signal enabling sending of a subsequent-response signal that uniquely identifies the node;
sending the subsequent-response signal which includes identification related information of the node;
wherein the first signal, the response signal, the second signal and the subsequent-response signal occur on a common frequency channel;
wherein prior to sending the response signal, the node stores the second information which the node randomly generated in memory within the node;
wherein subsequent to receiving the second signal the node determines whether the second information included in the portion of the second signal matches the second information which the node randomly generated and stored in said memory of the node; and
wherein said subsequent-response signal from the node is sent only if the second information included in the portion of the second signal matches the second information which the node randomly generated and stored in the memory of the node.
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Abstract
A communication system is provided that enables a node to be identified by a controller. To establish a communication link from the node an alignment signal is received from the controller. Upon receiving the controller alignment information, the node sends a response including information the node randomly generated. The controller then responds by sending back at least a portion of the information the node randomly generated indicating that the node has been recognized by the controller.
171 Citations
16 Claims
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1. A method of communicating data from a node comprising:
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receiving a first signal, the first signal including first information used to align a response signal from the node; sending the response signal from the node, wherein the response signal includes second information which the node randomly generated; receiving a second signal, wherein a portion of the second signal includes the second information which the node randomly generated;
the second signal enabling sending of a subsequent-response signal that uniquely identifies the node;sending the subsequent-response signal which includes identification related information of the node; wherein the first signal, the response signal, the second signal and the subsequent-response signal occur on a common frequency channel; wherein prior to sending the response signal, the node stores the second information which the node randomly generated in memory within the node; wherein subsequent to receiving the second signal the node determines whether the second information included in the portion of the second signal matches the second information which the node randomly generated and stored in said memory of the node; and wherein said subsequent-response signal from the node is sent only if the second information included in the portion of the second signal matches the second information which the node randomly generated and stored in the memory of the node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of receiving data at a controller comprising:
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transmitting a first signal, the first signal including first information used to align a response signal; receiving the response signal, wherein said response signal comprises second information which was randomly generated; transmitting a second signal, wherein a portion of the second signal includes the second information which was randomly generated;
said second signal enabling sending of a subsequent-response signal;receiving the subsequent-response signal which includes identification related information; wherein the first signal, the response signal, the second signal and the subsequent-response signal occur on a common frequency channel; wherein prior to receiving the response signal, a node stores the second information which the node randomly generated in memory within the node; wherein subsequent to transmitting the second signal the node determines whether the second information included in the portion of the second signal matches the second information which the node randomly generated and stored in said memory of the node; and wherein said subsequent-response signal from the node is sent only if the second information included in the portion of the second signal matches the second information which the node randomly generated and stored in the memory of the node. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification