| 摘要 |
The present invention relates to a method for enabling IP multimedia system, IMS, signalling traffic in a Policy and Charging Control, PCC, environment between a user equipment (21), UE, and a proxy call session control function (16), P-CSCF, device. The method comprises the following steps: 1. The UE (21) requests (10) in a gateway (17), GW, at least one P-CSCF device address for IMS signalling traffic between the UE (21) and the P-CSCF device (16). 2. The GW (17) sends (11) a request for a policy decision for the IMS signalling traffic to a first policy control node (22,23), PCN. 3. The first PCN (22,23) responds (12) to PCN. the GW (17) with policy information defining the policy decision for the IMS signalling traffic, 4. The GW (17) installs (13) the policy information and provides the P-CSCF device address/-es assigned to said information to the UE (21). What particularly characterizes the method is a step where the first PCN (22, 23) defines (14) the policy information for the IMS signalling traffic. It is defined in the form of at least one instruction of at least one instruction, wherein the first PCN (22, 23) responds with the defined instruction/-s and with P-CSCF device address/-es assigned to said instruction/-s to the GW (17). |
