Patent ID: 8855052

Claim:
A method of packet domain event reporting performed by a user equipment (UE) including a mobile termination (MT) and a terminal equipment (TE), the method comprising: performing, by the MT, context activation for establishing a dual-stack bearer between the MT and a network; receiving, by the MT from the network, information indicating that the context activation of the dual-stack bearer is not possible between the network and the MT; and sending, by the MT to the TE, a message including a reason parameter selected among a first parameter to a fourth parameter for indicating a reason as to why the context activation of the dual-stack bearer is not possible between the network and the MT to thus achieve packet domain event reporting, wherein the first parameter indicates that an IPv4 (Internet Protocol version 4) is only allowed, the second parameter indicates that an IPv6 (Internet Protocol version 6) is only allowed, the third parameter indicates that 2 single address bearers are only allowed, and the fourth parameter indicates that 3 single address bearers are only allowed and the MT initiated context activation for a second address type bearer was not successful, wherein the MT offers functions related to communication services between the network and the TE, and wherein the TE provides services other than the communication services with the network.