Patent ID: 9591556
Date: 2017-03-07
CPC Classifications: H04L,H04M,H04W

Claim:
1. A system for access network discovery and selection, the system comprising: an access network discovery and selection function (ANDSF) network element for identifying to a user equipment (UE) an access network through which the UE can connect to a core network, wherein the ANDSF network element includes an interface for communicating with a policy and charging rules function (PCRF) associated with the core network, and wherein the ANDSF is configured to use the interface for communicating with the PCRF to operate as a conduit by which the UE and the PCRF may communicate; wherein the ANDSF network element is configured to provide a dynamic offload policy from the PCRF to the UE, and wherein the ANDSF network element is configured to receive, while operating as the conduit by which the UE and the PCRF may communicate, an indicator destined for the PCRF from the UE and send the indicator to the PCRF using the interface for communicating with the PCRF, and wherein the indicator from the UE comprises an indication of activity or change of activity by the UE or an indication of status or change of status of the UE; wherein the ANDSF network element is configured to communicate with an application function (AF) node using the interface for communicating with the PCRF and to trigger applications of the AF node in response to access network connection events.