Patent ID: 9621462
Date: 2017-04-11
CPC Classifications: H04L,H04W

Claim:
1. A method of managing end device addresses in a mesh network by a parent router device, the method comprising: attaching to a child end device in response to the child end device exiting a sleep mode and powering up a mesh network interface of the child end device, the child end device being configured to re-enter the sleep mode and power down the mesh network interface of the child end device at some point in time after said attaching; receiving, from the attached child end device, a child identifier; encoding, by the parent router device on behalf of the child end device, an Interface Identifier (IID), based on the received child identifier of the child end device and a router identifier of the parent router device, into a Routing Locator (RLOC) for the child end device; receiving an address query for the child end device at the parent router device; responding to the address query on behalf of the child end device with the RLOC associated with the child end device; receiving data packets for the child end device, the data packets being stored at the parent router device when the child end device is operative in the sleep mode; and forwarding the stored data packets to the child end device responsive to the child end device exiting the sleep mode.