Systems and methods for synchronization of wireless devices in an ad-hoc network

摘要

Methods, devices, and computer program products for synchronization of wireless devices in an ad-hoc network are described herein. In one aspect, a method for synchronizing a wireless communication apparatus is provided. The method includes generating, at a wireless communication apparatus, one or more messages identifying a second device to generate prospective synchronization messages. In some aspects, the second device is a back-up root device. The method further includes transmitting a synchronization message. In one aspect, a root device for an ad-hoc network is responsible for generating synchronization messages for nodes of the ad-hoc network. The root device also generates and transmits a message which identifies a back-up root device. The back-up root device may assume responsibility for generating synchronization messages for the ad-hoc network in the event that the wireless communication apparatus no longer generates synchronization messages for the ad-hoc network. In an embodiment, the generated message identifying the back-up root device is included in a synchronization message.

主权项

1. A method for wireless communication performed by a root device within an ad-hoc network, comprising:
negotiating, by a first device, with other devices of the ad-hoc network to determine the root device, wherein the negotiation includes each of the other devices designating itself as a preliminary root device and in response, transmitting synchronization messages, wherein a signal strength of the synchronization messages is usable by the other devices and the first device to determine the first device is the root device; determining, by the root device, one of the other devices with the highest signal strength that has been active within a predetermined time period is a back-up root device; generating, by the root device, an update to an availability window during which communication occurs between other devices of the ad-hoc network; generating, by the root device, a synchronization message, the synchronization message identifying the back-up root device to replace the root device and generate prospective synchronization messages in lieu of the root device, the prospective synchronization messages communicating a further updated availability window to the other devices of the ad-hoc network; and transmitting, by the root device, the synchronization message.