Patent ID: 8706080
Filing Date: 2014-04-22
Classification: H04L

Abstract:
1. A Policy and Charging Rules Function (PCRF) operable to communicate with a Policy and Charging Enforcement Function (PCEF) over a Gx interface and operable to communicate with an Application Function (AF) over an Rx interface, the PCRF further being: operable to receive a request from the AF regarding Access Network Charging Correlation Information for the AF; configured such that, in response to receiving said request from the AF, the PCRF determines whether Access Network Charging Correlation Information is known to the PCRF; and configured such that, as a result of the PCRF determining that said Information is known to the PCRF, the PCRF provides said Information to the AF, otherwise, as a result of the PCRF determining that said Information is not known to the PCRF, the PCRF subscribes to said Information from the PCEF and provides said Information to the AF after reception of said Information from the PCEF.