Patent ID: 9692911
Date: 2017-06-27
CPC Classifications: H04L,H04M,H04W

Claim:
1. A method for using user defined session description protocol (SDP) rules, the method comprising: at a policy and charging rules function (PCRF): receiving, from a user device or a network operated device, at least one user defined session description protocol (SDP) rule, wherein the user defined SDP rule includes at least one SDP parameter reference for referencing at least one SDP parameter; receiving, from at least one network node, SDP information in an SDP related message associated with setting up a session; and determining, using the at least one user defined SDP rule and the SDP information, a policy related rule associated with the session, wherein determining the policy related rule comprises: resolving, using the SDP information, the at least one SDP parameter reference into at least one discernible value; determining, using a match algorithm implemented by the PCRF, whether the at least one discernible value meets criteria of the user defined SDP rule for triggering the policy related rule; and in response to determining that the at least one discernible value meets criteria of the user defined SDP rule, selecting the policy related rule.