Method to switch between network-controlled and mobile-controlled mobile IP functionality

摘要

A method for prioritizing Mobile IP between PMIP and CMIP includes the steps of connecting a mobile device (118) to a communication network (102) and determining (308) if the network provides mobility control, such as the network being PMIP-enabled. When it is determined that the network provide mobility control, the mobility function is assigned (312) to the network and is therefore given priority over the mobility function provided by the mobile device. It can be determined (304) that the mobile station also includes a mobility control so that when the network is not PMIP-enabled the mobile station controls (314) layer 3 mobility and the Mobile IP function.

主权项

1. A method comprising:
connecting a mobile station to a first network wherein the first network is one of a client mobile internet protocol (CMIP) where the mobile station controls the IP and a proxy internet protocol network (PMIP) where the network controls the IP and wherein the mobile station can be a CMIP-enabled mobile station and is capable of connecting to a PMIP network; when the mobile station roams between a CMIP network and a PMIP network: determining if the first network provides the capability of mobility control; when the first network is determined to provide the capability of mobility control, providing a network mobility control capability announcement to the mobile station; determining if the mobile station provides the capability of mobility control; and when the mobile station is determined to provide the capability of mobility control, providing a mobile station mobility control capability announcement to the network, wherein control of mobile IP is prioritized such that when the mobile station is CMIP-enabled and is connected to a network that is PMIP-enabled mobile IP is controlled by the network, and when the mobile device is connected to a network that is PMIP-enabled and moves to another network that is PMIP-enabled, mobility control is reclaimed by the mobile device and then assigned to the another network.