Abstract: A node includes a processor coupled to a wireless transceiver and a memory. The memory includes instructions that can cause the processor to store a broadcast channel hopping timing interval and a broadcast channel hopping sequence, as well as, channel hopping timings and channel hopping sequences for tracked neighbor nodes. The instructions can also cause the processor to determine whether a destination node for a unicast message corresponds to tracked neighbor nodes. Based on a determination that the destination node does not correspond to any tracked neighbor nodes, the processor can determine (i) a broadcast dwell interval based on the broadcast channel hopping timing interval and (ii) a next broadcast channel based on the broadcast channel hopping sequence. Additionally, instructions can cause the processor to transmit the unicast message to the destination node during the broadcast dwell interval.

Abstract: A deployed node may automatically switch from one configuration to another configuration. The node includes a first firmware image that corresponds to a first configuration and a second firmware image that corresponds to a second configuration. The node executes the first firmware image to run the first configuration. At some point, the node determines that a switch to the second configuration is appropriate and switches to the second configuration by activating the second firmware image. The switch does not require intervention by a central system or any manual intervention. In some instances, the configurations are associated with different communication protocols.

Abstract: Systems and methods are disclosed for facilitating communications in heterogeneous networks that include different data networks. A gateway device is configured to communicate with a first network using a TSCH protocol and with a second network using a channel hopping CSMA protocol. The gateway device can determine, during a first part of a TSCH timeslot, whether a message is received from the first network. If no message is received, the gateway device switches to the second network during a second part of the timeslot. If the gateway device receives a message from the second network, the gateway device may continue to receive the message. The receipt of the message in the second network may continue into a subsequent TSCH timeslot or may be interrupted if certain conditions are met.

Abstract: A multi-radio border router for synchronizing communications of multiple border router radios is provided. For example, the border router includes a border router component connected to each of the plurality of border router radios. The border router component configured for selecting one of the plurality of border router radios as a master radio and assigning channel offset parameters for each of the plurality of border router radios. The master radio is configured for broadcasting synchronization beacons based on which the non-master radios synchronize their respective clocks with that of the master radio. After the synchronization, each of the border router radios communicates with endpoints associated therewith according to a channel hopping pattern modified by applying a channel offset determined based on the channel offset parameters assigned to the respective radio.

Abstract: A node includes a processor coupled to a wireless transceiver and a memory. The memory includes instructions that can cause the processor to store a broadcast channel hopping timing interval and a broadcast channel hopping sequence, as well as, channel hopping timings and channel hopping sequences for tracked neighbor nodes. The instructions can also cause the processor to determine whether a destination node for a unicast message corresponds to tracked neighbor nodes. Based on a determination that the destination node does not correspond to any tracked neighbor nodes, the processor can determine (i) a broadcast dwell interval based on the broadcast channel hopping timing interval and (ii) a next broadcast channel based on the broadcast channel hopping sequence. Additionally, instructions can cause the processor to transmit the unicast message to the destination node during the broadcast dwell interval.

Abstract: A multi-radio border router for synchronizing communications of multiple border router radios is provided. For example, the border router includes a border router component connected to each of the plurality of border router radios. The border router component configured for selecting one of the plurality of border router radios as a master radio and assigning channel offset parameters for each of the plurality of border router radios. The master radio is configured for broadcasting synchronization beacons based on which the non-master radios synchronize their respective clocks with that of the master radio. After the synchronization, each of the border router radios communicates with endpoints associated therewith according to a channel hopping pattern modified by applying a channel offset determined based on the channel offset parameters assigned to the respective radio.

Abstract: Systems and methods are disclosed for reconstructing a personal area network (“PAN”) after a failure in a system or network. A method can include detecting, by a node, a power failure in a system. The method can further include storing, by the node, data about a parent node in the system at a time of the power failure. The method can further include detecting, by the node, power restoration in the system and entering a restoration state in response to detecting the power restoration. The method can further include transmitting, by the node and to the parent node, an enhanced beacon request via a particular frequency channel associated with the parent node. The method can also include receiving, by the node, an acknowledgment response from the parent node via the frequency channel and receiving, by the node, an enhanced beacon request from the parent node via the frequency channel.

Abstract: A deployed node may automatically switch from one configuration to another configuration. The node includes a first firmware image that corresponds to a first configuration and a second firmware image that corresponds to a second configuration. The node executes the first firmware image to run the first configuration. At some point, the node determines that a switch to the second configuration is appropriate and switches to the second configuration by activating the second firmware image. The switch does not require intervention by a central system or any manual intervention. In some instances, the configurations are associated with different communication protocols.

Abstract: A multi-radio border router for synchronizing communications of multiple border router radios is provided. For example, the border router includes a border router component connected to each of the plurality of border router radios. The border router component configured for selecting one of the plurality of border router radios as a master radio and assigning channel offset parameters for each of the plurality of border router radios. The master radio is configured for broadcasting synchronization beacons based on which the non-master radios synchronize their respective clocks with that of the master radio. After the synchronization, each of the border router radios communicates with endpoints associated therewith according to a channel hopping pattern modified by applying a channel offset determined based on the channel offset parameters assigned to the respective radio.

Abstract: A multi-radio border router for synchronizing communications of multiple border router radios is provided. For example, the border router includes a border router component connected to each of the plurality of border router radios. The border router component configured for selecting one of the plurality of border router radios as a master radio and assigning channel offset parameters for each of the plurality of border router radios. The master radio is configured for broadcasting synchronization beacons based on which the non-master radios synchronize their respective clocks with that of the master radio. After the synchronization, each of the border router radios communicates with endpoints associated therewith according to a channel hopping pattern modified by applying a channel offset determined based on the channel offset parameters assigned to the respective radio.

Abstract: Systems and methods are disclosed for facilitating communications in heterogeneous networks that include different data networks. A gateway device is configured to communicate with a first network using a TSCH protocol and with a second network using a channel hopping CSMA protocol. The gateway device can determine, during a first part of a TSCH timeslot, whether a message is received from the first network. If no message is received, the gateway device switches to the second network during a second part of the timeslot. If the gateway device receives a message from the second network, the gateway device may continue to receive the message. The receipt of the message in the second network may continue into a subsequent TSCH timeslot or may be interrupted if certain conditions are met.

Abstract: Aspects and examples are disclosed for apparatuses and processes for establishing a communication link between a network using a routing protocol for low power and lossy networks (RPL) and a non-RPL-enabled device. For instance, a communication link establishment method includes establishing, by a routing protocol for low power and lossy networks (RPL) enabled device, a communication link with a non-RPL-enabled device. The method also includes establishing, by the RPL-enabled device, a network connection with an RPL-enabled network. Further, the method includes providing, by the RPL-enabled device, a proxy communication link between the non-RPL-enabled device and the RPL-enabled network. Providing the proxy communication link includes assigning a globally unique address (GUA) to the non-RPL-enabled device, and transmitting, by the RPL-enabled device, a proxy destination advertisement object to the RPL-enabled network where the proxy destination advertisement object comprises the GUA.

Abstract: Systems and methods are disclosed for facilitating communications in heterogeneous networks that include different data networks. A gateway device is configured to communicate with a first network using a TSCH protocol and with a second network using a channel hopping CSMA protocol. The gateway device can determine, during a first part of a TSCH timeslot, whether a message is received from the first network. If no message is received, the gateway device switches to the second network during a second part of the timeslot. If the gateway device receives a message from the second network, the gateway device may continue to receive the message. The receipt of the message in the second network may continue into a subsequent TSCH timeslot or may be interrupted if certain conditions are met.

Abstract: A multi-radio border router for synchronizing communications of multiple border router radios is provided. For example, the border router includes a border router component connected to each of the plurality of border router radios. The border router component configured for selecting one of the plurality of border router radios as a master radio and assigning channel offset parameters for each of the plurality of border router radios. The master radio is configured for broadcasting synchronization beacons based on which the non-master radios synchronize their respective clocks with that of the master radio. After the synchronization, each of the border router radios communicates with endpoints associated therewith according to a channel hopping pattern modified by applying a channel offset determined based on the channel offset parameters assigned to the respective radio.

Abstract: Systems and methods are disclosed for facilitating communications in heterogeneous networks that include different data networks. A gateway device is configured to communicate with a first network using a TSCH protocol and with a second network using a channel hopping CSMA protocol. The gateway device can determine, during a first part of a TSCH timeslot, whether a message is received from the first network. If no message is received, the gateway device switches to the second network during a second part of the timeslot. If the gateway device receives a message from the second network, the gateway device may continue to receive the message. The receipt of the message in the second network may continue into a subsequent TSCH timeslot or may be interrupted if certain conditions are met.

Abstract: Systems and methods are disclosed for reconstructing a personal area network (“PAN”) after a failure in a system or network. A method can include detecting, by a node, a power failure in a system. The method can further include storing, by the node, data about a parent node in the system at a time of the power failure. The method can further include detecting, by the node, power restoration in the system and entering a restoration state in response to detecting the power restoration. The method can further include transmitting, by the node and to the parent node, an enhanced beacon request via a particular frequency channel associated with the parent node. The method can also include receiving, by the node, an acknowledgment response from the parent node via the frequency channel and receiving, by the node, an enhanced beacon request from the parent node via the frequency channel.

Abstract: Aspects and examples are disclosed for apparatuses and processes for establishing a communication link between a network using a routing protocol for low power and lossy networks (RPL) and a non-RPL-enabled device. For instance, a communication link establishment method includes establishing, by a routing protocol for low power and lossy networks (RPL) enabled device, a communication link with a non-RPL-enabled device. The method also includes establishing, by the RPL-enabled device, a network connection with an RPL-enabled network. Further, the method includes providing, by the RPL-enabled device, a proxy communication link between the non-RPL-enabled device and the RPL-enabled network. Providing the proxy communication link includes assigning a globally unique address (GUA) to the non-RPL-enabled device, and transmitting, by the RPL-enabled device, a proxy destination advertisement object to the RPL-enabled network where the proxy destination advertisement object comprises the GUA.

Abstract: A method for transmitting unicast messages includes: obtaining, by a first node configured to communicate on a primary time-slotted channel hopping (TSCH) network, a media access control (MAC) address of a second node configured to communicate on the primary TSCH network; determining whether the first node and the second node are also configured to communicate on a secondary TSCH network; and in response to determining that the first node and the second node are also configured to communicate on the secondary TSCH network: offsetting transmission of a unicast message until a second portion of a timeslot for the primary TSCH network; synchronizing to a channel hopping sequence and frequency of the secondary TSCH network for the second node, and transmitting, by the first node, the unicast message to the second node on the secondary TSCH network during the second portion of the timeslot.

Abstract: A method for transmitting unicast messages includes: obtaining, by a first node configured to communicate on a primary time-slotted channel hopping (TSCH) network, a media access control (MAC) address of a second node configured to communicate on the primary TSCH network; determining whether the first node and the second node are also configured to communicate on a secondary TSCH network; and in response to determining that the first node and the second node are also configured to communicate on the secondary TSCH network: offsetting transmission of a unicast message until a second portion of a timeslot for the primary TSCH network; synchronizing to a channel hopping sequence and frequency of the secondary TSCH network for the second node, and transmitting, by the first node, the unicast message to the second node on the secondary TSCH network during the second portion of the timeslot.

Abstract: Systems and methods are disclosed for reconstructing a personal area network (“PAN”) after a failure in a system or network. A method can include detecting, by a node, a power failure in a system. The method can further include storing, by the node, data about a parent node in the system at a time of the power failure. The method can further include detecting, by the node, power restoration in the system and entering a restoration state in response to detecting the power restoration. The method can further include transmitting, by the node and to the parent node, an enhanced beacon request via a particular frequency channel associated with the parent node. The method can also include receiving, by the node, an acknowledgement response from the parent node via the frequency channel and receiving, by the node, an enhanced beacon request from the parent node via the frequency channel.