Patent ID: 7167447

Claim:
A method for sending data packets from a first communication subsystem via a first network element to a second network element in a second communication subsystem; the method comprising: sending the data packets in a first plurality of data flows in the first communication subsystem; mapping the first plurality of data flows to a second plurality of data flows in the second communications subsystem; establishing at least one filter for controlling the mapping; associating the at least one filter with a data flow within the second plurality of data flows; and mapping at least one data flow on the basis of the filter; and configuring the filter from the second network element, wherein at least one of the data flows is bidirectional having a first direction from the first plurality of data flows to the second plurality of data flows and a second direction which is inverse to the first direction, and the at least one filter is modified to update a Quality of Signal profile of a PDP context on the basis of user data packets sent in the second direction.