Patent ID: 9172776
Filing Date: 2015-10-27
Classification: H04L,H04W

Abstract:
1. In an infrastructure network comprising a gateway (GW), an access function (AF), and at least one policy and charging rules function (PCRF), a method for policy control, comprising: the GW establishing a Gx or Gxx session in order to set a current packet data network (PDN) connection under policy and charging control (PCC) control; the GW providing information about the current PDN connection to a first PCRF, the first PCRF performing authorization and policy decision based on the PDN connection information received from the GW and sending a set of restoration instructions to the GW; the GW, when detecting that the first PCRF is not available, applying the restoration instructions, said restoration instructions requiring the GW to try to regain PCC control and/or requiring the GW to gracefully delete the services associated with the PCC control.