Patent ID: 9408078
Filing Date: 2016-08-02
CPC Classification: G06F,H04L,H04W

Claim Text:
1. A method comprising: causing establishment of an internet protocol (IP) mobility binding with an indication of a security mode for a mobile node connected to an IP sub-network and identified in the IP sub-network by a care of address, detecting a trigger to adapt the security mode for the mobile node connected to the IP sub-network, wherein there is no update to the IP mobility binding and the care of address, and wherein the mobile node continues to be connected to the IP sub-network and continues to be identified in the IP sub-network by the same care of address, adapting, in response to the trigger, the security mode for the mobile node connected to the IP sub-network and identified by the care of address; and causing a binding update message to be transmitted to indicate an applied security mode or a need to change the security mode, wherein the binding update message is associated with a flag that is indicative of whether user plane traffic will be encrypted or unencrypted.