Patent ID: 8891588

Claim:
A method, comprising: in a low power and lossy network (LLN) comprising a plurality of devices, determining, by a sender device, that data for transmission to a receiver device is capable of being transmitted via a low-power channel; determining, by the sender device, if the receiver device is listening on a low-power channel hopping schedule sufficient to transmit the data to the receiver device; in response to determining that the receiver device is not listening on a low-power channel hopping schedule sufficient to transmit the data to the receiver device, transmitting, by the sender device, a control message to the receiver device via a channel-hopping schedule of the receiver device, wherein the control message instructs the receiver device to listen on the low-power channel hopping sequence; and transmitting, by the sender device, the data to the receiver device via the low-power channel hopping schedule.