Patent ID: 7554991

Claim:
A method, comprising: activating, by using a packet based data transmission protocol context, a communication connection based on a communication protocol of a first type from a user equipment to a network support node of a communication network; allocating, by the network support node, a first connection information part comprising a first address related to the communication protocol of the first type to the communication connection of the user equipment; allocating, by the network support node, and based on a transition mechanism used by the communication network, a second connection information part comprising a second address related to the communication protocol of a second type to the communication connection of the user equipment; storing, by the network support node, the first connection information part and the second connection information part in a register, wherein the second connection information part is associated with the first connection information part in a common entry in the register; tunneling, with the network service node being a tunnel end-point, the data transmission based on the communication protocol of the first type between the user equipment and the another node using a connection based on the communication protocol of the second type; and executing encapsulation/decapsulation for the data transmission based on the communication protocol of the second type by the network support node transparently for the user equipment, wherein the user equipment is connected to the communication network by the communication protocol of the first type, and wherein the communication network uses at least in part the communication protocol of the second type for forwarding the data transmission from the user equipment to the another node.