Systems and methods are disclosed for providing scheduled communication between a primary network, such as a time synchronized channel hopping (“TSCH”) network, and a secondary network, such as a carrier sense multiple access (“CSMA”) network. During a first selected slot-offset in a TSCH hopping pattern, a gateway node communicates with a primary network node. During a second selected slot-offset in the TSCH hopping pattern, the gateway node communicates with a secondary network node. A communication schedule identifies the source and destination nodes and channel frequency for each slot-offset. The communication schedule is set such that the CSMA wake-up period for the secondary network is synchronized with the second slot-offset in the TSCH hopping pattern.