Patent attributes
This specification faces the issue of unnecessary signalling between PCRF clients and the PCRF, where there is just one PCRF, and the issue of selecting by PCRF clients a right PCRF, where there are more than one PCRF. To solve these issues, this specification provides for PCC deployment information stored in a subscriber database and transmitted to a final node, likely through intermediate nodes. This PCC deployment information identifies one or more PCC interfaces that apply for a UE and, for each of the one or more PCC interfaces, at least one node that requires contacting a PCRF node identified by a PCRF address. A node receiving the PCC deployment information determines, based on the PCC deployment information, whether a PCRF node has to be contacted and, if it is determined that the PCRF node has to be contacted, such node initiates a session with the PCRF node identified by the corresponding PCRF address.
