Controlling packet filter installation in a user equipment

A method in a communication system with a policy controller, a signalling 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:

• obtaining, by the signalling controller, a result of a decision if installation of a new packet filter is required in the user equipment to map indicated data traffic to the at least one bearer, where the signalling controller obtains the result from the policy controller;
• evaluation, by the signalling controller, of the result;
• and
• initiating, by the signalling controller, in accordance with the evaluation, signalling of the new packet filter to the user equipment.

A method in a communication system with 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:

• receiving, by the user equipment, a new packet filter;
• determining, by the user equipment, from signalling used to transmit the new filter if installation of the new packet filter in the user equipment is required to map the data packets of indicated data traffic to the at least one bearer;
• and
• installing, by the user equipment, the new packet filter in accordance with the determination.

A user equipment, comprising:

• a transmitter configured to send data packets on at least one bearer to a gateway;
• a processor configured to install at least one packet filter for associating the data packets with the at least one bearer;
• a receiver configured to receive a new packet filter;
• and
• a detector configured to determine, from signalling used to transmit the new packet filter, if installation of the new packet filter is required to map data packets of indicated data traffic to the at least one bearer,
• wherein the processor is configured to install the new packet filter in accordance with the determination by the detector, and wherein the transmitter, the processor, the receiver, and the detector are components of the user equipment.