Relay Functionality of Battery Powered Devices

摘要

Disclosed are techniques to minimize the electricity consumption of battery powered devices during network communications and performance of other functions. Example techniques include efficiently discovering other mains powered and battery powered devices within communication range of the battery powered device. In another example, techniques enable a battery powered device to serve as a relay for one or more other battery powered devices. In another example, techniques ensure that transmissions to and/or from battery powered devices are delivered efficiently and with low latency. In yet another example, techniques determine whether and under what conditions a battery powered device should migrate from one network to another. In the event of migration, example techniques minimize battery consumption associated with the migration.

主权项

1. A method implemented at least in part by a battery powered device, the method comprising:
performing a short range discovery scan using a first transmission mode having a first data rate; determining that no reply has been received in response to the short range discovery scan; performing a long range discovery scan using a second transmission mode having:
longer transmission range than the first transmission mode, anda second data rate which is lower than the first data rate; receiving a reply from a mains powered device, the reply including synchronization information; and performing a targeted short range discovery scan on a control channel that, based at least in part on the synchronization information, is a current control channel of one or more neighboring battery powered devices in a vicinity of the battery powered device.