Patent ID: 7907524

Claim:
A method, in a communication network, for associating a data packet with a packet bearer in a user equipment of the communication network, wherein the data packet is sent in a data flow from an application function of the user equipment, the packet bearer is established with the user equipment to transmit the data packet over the communication network towards a further entity, and the user equipment establishes different packet bearers, the method comprising the steps of: identifying the flow with the data packet in a control entity of the communication network, determining the packet bearer for association with said flow from the different packet bearers in a policy function of the control entity, determining a routing level identification of the further entity, instructing the user equipment, by the communication network, to install a packet filter based on the routing level identification, wherein the packet filter associates data packets comprising the routing level identification of the further entity with the determined packet bearer, providing the routing level identification to the application function, including the routing level identification into the data packet, and forwarding the data packet (DP) on the determined packet bearer (PB), receiving the determined routing level identification from a monitoring entity, instructing the user equipment to install the packet filter, initiating an establishment of a communication session between the user equipment and the further entity by an initiation message comprising a session level identification of the further entity, storing an information related to the communication session in the monitoring entity, for monitoring, messages sent between the user equipment and the further entity for establishing the session, forwarding the initiation message towards the further entity using the session level identification, the monitoring entity waiting for a reply message related to the establishment of the communication session, determining the routing level identification of the further entity from the reply message, and forwarding the reply message to the user equipment, and completing the session establishment.