Fast frequency-hopping schedule recovery

摘要

In one embodiment, a device determines a need to resynchronize a broadcast and unicast frequency-hopping schedules on its network interface. In response to the need, the device may solicit the broadcast schedule from one or more neighbor devices having the synchronized broadcast schedule, and then establishes the unicast schedule for the network interface using communication during the synchronized broadcast schedule.

主权项

1. A method, comprising:
determining, by a network interface, a need to resynchronize one or more broadcast and unicast frequency-hopping schedules on the network interface; in response to the need, soliciting, by the network interface, an existing broadcast schedule from one or more neighbor devices having a synchronized broadcast schedule; recovering, by the network interface, the one or more broadcast frequency-hopping schedules on the network interface utilizing the solicited existing broadcast schedule from at least one of the one or more neighbor devices; establishing a resynchronized or new unicast schedule for the network interface using communication during the one or more recovered broadcast frequency hopping schedules; and informing the one or more neighbor devices of the resynchronization of the one or more broadcast and unicast frequency hopping schedules by the network interface, wherein determining the need to resynchronize occurs before an impending de-synchronization occurs and the one or more neighbor devices are informed of an expected impending de-synchronization time of the one or more broadcast and unicast frequency hopping schedules of the network interface.