Patent ID: 9467341
Filing Date: 2016-10-11
CPC Classification: H04L,H04W

Claim Text:
1. A policy decision function (PDF) addressing method, implemented in a network system, wherein the network system comprises an access gateway, a policy management entity (PME) and a core gateway, the method comprising: receiving, by the PME, a first PDF allocation request sent from the access gateway, wherein the first PDF allocation request contains a user equipment (UE) identifier (ID); allocating, by a processor of the PME, a PDF for the access gateway in response to the first PDF allocation request, wherein the allocated PDF is used to generate policy control information; registering, by the processor of the PME, addressing information of the allocated PDF, wherein the addressing information of the allocated PDF includes an association between the UE ID and ID information of the PDF associated with the UE ID; receiving, by the PME, a second PDF allocation request sent from the core gateway, wherein the second PDF allocation request includes the UE ID; and obtaining, by the processor of the PME, the ID information of the allocated PDF associated with the UE ID from the registered addressing information of the allocated PDF in response to the second PDF allocation request, so as to enable the core gateway to obtain the policy control information generated and sent from the allocated PDF.