METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR TRIGGERING A SERVICE NODE TO INITIATE A SESSION WITH A POLICY CHARGING AND RULES FUNCTION

摘要

According to one aspect, the subject matter described herein includes a method for initiating a session. The method includes steps occurring at a policy charging and rules function (PCRF) node. The method also includes determining, independent of contact from a service node, that the service node requires policy information. The method further includes in response to determining that the service node requires policy information, communicating a session independent trigger message to the service node, wherein the trigger message comprises information instructing the service node to initiate a session with the PCRF node to obtain the policy information from the PCRF node.