Patent ID: 8085727
Filing Date: 2011-12-27
Classification: H04W

Abstract:
1. A non-transitory computer readable storage medium encoded with a frame adapted for transmission from a wireless device to a first networking device over a link with the first networking device in communication with a second networking device over a mobility tunnel, the frame comprising: a header; and a frame body including an information element to solely initiate closure of the mobility tunnel, said mobility tunnel established between a first and second Internet Protocol (IP) subnets so that as said wireless device roams from the first IP subnet to the second IP subnet said wireless device maintains its IP address associated with said first IP subnet, the information element of the frame body comprises an Internet Protocol (IP) Address flag set due to a non-active state of at least one IP application executed between said wireless device and said first networking device via the IP address associated with the first IP subnet, the set IP Address flag thereby causing the second networking device to close the mobility tunnel between the first networking device and the second networking device and establish a new IP address of the wireless device, and a subnet mask, wherein said mobility tunnel established between the respective first and second IP subnets allows the wireless device to maintain the IP address associated with said first IP subnet.