Patent · US Active

Concurrent network reformation for low-power and lossy networks

US10904097B2 · kind B2 · utility

1Cited by

5References

20Claims

0Family size

Assignee

Cisco Technology, Inc. · US

Inventors

Huimin She · Shanghai, CN
Li Zhao · Shanghai, CN
Nan Yi · Shanghai, CN
Haibo Dong · Jiujiang, CN

Key dates

Filing date	Mar 14, 2019
Grant date	Jan 26, 2021
Priority date	—
Expiry date	Jul 24, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2101/659
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

In one embodiment, a device in a mesh network rooted at a root node receives a subroot selection notification. The subroot selection notification indicates that the device should function as a root of a sub-directed acyclic graph (DAG) were a power outage to occur. The device determines that a power outage has occurred. The device forms, after determining that a power outage has occurred, a sub-DAG that is rooted at the device by establishing one or more other devices in the mesh network as routing children of the device in the sub-DAG. The device joins the sub-DAG to a DAG rooted at the root node.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.