Patent ID: 9491140
Filing Date: 2016-11-08
CPC Classification: H04L,H04W

Claim Text:
1. A method for switching a personal network gateway (PN GW) in a personal network (PN) by to a first device, while the first device is in a personal network element (PNE) mode, from a second device which is currently in a PN GW mode or a PNE and PN GW (BOTH) mode, the method comprising: transmitting, by the first device to the second device, a first message for request PN GW switching; receiving, by the first device, a second message from the second device in response to the first message, the second message including a value indicating success corresponding to acceptance of the PN GW switching request; switching, by the first device, a mode of the first device from the PNE mode to the PN GW mode or the BOTH mode; performing, by the first device, a PN GW authentication procedure with a converged personal network service (CPNS) server: transmitting, by the first device to the CPNS server, a third message to request PN GW switching; receiving, by the first device from the CPNS server, a fourth message in response to the third message, the fourth message indicating that the request of the PN GW switching is accepted; and updating, by the first device, a local PN inventory and creating a service group (SG) inventory; transmitting, by the first device, a PN GW change notification message to all PNEs in the PN; and resuming, by the first device, a service suspended by the second device, wherein the suspended service is resumed by a PN GW entity of the first device.