Patent ID: 8750322
Filing Date: 2014-06-10
Classification: H04L

Abstract:
1. A method in a communication system comprising a policy controller, a user equipment and a gateway, the communication system being configured to send data packets on at least one bearer from the user equipment to the gateway and the user equipment being configured to install at least one packet filter for associating the data packets with the at least one bearer, the method comprising: detecting, by the policy controller, an indication of data traffic; determining, by the policy controller, a control rule for the indicated data traffic; performing, by the policy controller, a decision if installation of a new packet filter in the user equipment is required to map the data packets of the indicated data traffic to the at least one bearer; and providing, by the policy controller, an indication to the gateway indicating if the new packet filter is to be signalled to the user equipment, wherein the providing step is accomplished by setting a flag in a message or per control rule or per filter within the control rule sent to the gateway, and wherein the setting of the flag is dependent on (1) the result of the decision and (2) whether precondition signalling has been required by the user equipment during session initiation and corresponding precondition attributes associated with the precondition signalling have been meet.