Landis+gyr Innovations, Inc.

Christopher Sean Calvert

Jeffrey B Shudark

Michael Sean Holcombe

Justin Clifford Matthews

Matthew Donald Karlgaard

A method is provided to transmit a message over a wireless mesh network. According to the method, a node connects to a second node by a first communications band and a second communications band, such that the node is configured to communicate with the second node over both the first communications band and the second communications band. The node identifies a message for transmission to the second node. The node determines that the second node is capable of receiving the message by way of the first communications band and is capable of receiving the message by way of the second communications band. The node dynamically determines a selected communications band, from the first communications band and the second communications band, to use to transmit the message to the second node over the wireless mesh network. The node transmits the message to the second node over the selected communications band.

Multi-band communications in a wireless mesh network

The determination and advertisement of a node's rank in an RF mesh network reflects sustained network changes. A node's advertised rank may be based on the node's induced rank and a previous rank candidate. Induced rank is the rank of the node at a particular point in time. Rank candidate is based on a running average of the node's past rank. The advertised rank may be based on a weighted sum of the induced rank and a previous rank candidate. Induced rank may consider a Link Quality Indicator (LQI), which may be based on a running average LQI.

Determining network rank for communication to neighboring nodes

Systems and methods are provided for maintaining a low power endpoint (LPE) synchronized on a time synchronized channel hopping network (TSCH). An LPE receives a guaranteed time slot (GTS) from a parent node. The LPE determines a wake-up time that coincides with or is prior to the GTS. The LPE enters a low power mode to conserve power until the wake-up time occurs. At that time, the LPE enters a regular power mode and may communicate with the parent node.

System and method for maintaining synchronization with low power endpoints in a time synchronized channel hopping network

A node receives status data associated with a current collector in the network, where the node is active on the current collector. The node also receives status data associated with a candidate collector in the network, where the node is not active on the candidate collector. An analysis of the status data of the collectors is generated, where the analysis includes at least comparing respective network loads reported in the received status data. An optimal collector is determined from among the current collector and the candidate collector. The determination of the optimal collector is based at least in part upon the analysis of the status data of the collectors. The node remains active on the current collector when the current collector is determined to be the optimal collector, and the node becomes active on the candidate collector when the candidate collector is determined to be the optimal collector.

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Roswell, GA, United States of America

Christopher Sean Calvert