Patent ID: 9515837
Filing Date: 2016-12-06
CPC Classification: H04L,H04M,H04W

Claim Text:
1. A method of operating a communication system to provide default policy information comprising: in a policy and charging rules function (PCRF) system, identifying a Sy interface interruption between the PCRF system and an online charging server; in the PCRF system and responsive to identifying the Sy interface interruption, transferring a default policy requirement notification for delivery to a packet data network gateway; in the packet data network gateway, receiving the default policy requirement notification and transferring a default policy rule request for delivery to the PCRF system; in the PCRF system, receiving the default policy rule request, identifying default policy rules, and transferring the default policy rules for delivery to the packet data network gateway; in the packet data network gateway, receiving the default policy rules; in the PCRF system, identifying a reestablished communication between the PCRF system and the online charging server and, in response to identifying the reestablished communication, transferring a notification to the packet data network gateway to indicate the reestablished communication; and in the packet data network gateway, receiving the notification.