Patent ID: 8605660

Claim:
A wireless two-way RF data communication device that forms a node of a data communications network, the device comprising: (a) a memory having stored therein a unique identifier of the wireless two-way RF data communication device that uniquely identifies the wireless two-way RF data communication device within the data communications network; (b) a receiver configured to receive radio frequency transmissions; (c) a transmitter configured to make radio frequency transmissions; and (d) electronic components arranged and configured such that the wireless two-way RF data communication device communicates with other nodes of the data communications network in communicating messages from originating nodes to destination nodes, and such that, in communicating messages from an originating node to a destination node, each message that is communicated by the wireless two-way RF data communication device includes (i) the unique identification of the wireless two-way RF data communication device, a pathway history by which the message has been communicated, and (ii) a link quality of each communications link between nodes in the pathway history.