Methods and apparatus for supporting proxy mobile IP registration in a wireless local area network

• Main Authors: ANDIAZABAL CHRISTINE, SIDDIQI WASEEM A, WANG HUIZHAO, LEUNG KENT K
• Format: Patent
• Language: English
• Published: 16.04.2013
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

Methods and apparatus for enabling mobility of a node that does not support Mobile IP are disclosed. When an AP receives a data packet, the AP may compare the data packet (e.g., source address) with the AP information for one or more APs to determine whether to send a registration request on behalf of the node. More particularly, the AP determines from the source address whether the node is located on a subnet identical to a subnet of the AP. If the node is located on the subnet of the AP, no Mobile IP service is required on behalf of the node. However, when it is determined from the source address that the node is not located on the subnet identical to the subnet of the Access Point, the AP composes and sends a mobile IP registration request on behalf of the node. For instance, the mobile IP registration request may be composed using the gateway associated with the home AP (e.g., having a matching subnet) as the node's Home Agent.