Patent ID: 9350737
Filing Date: 2016-05-24
CPC Classification: H04L,H04W

Claim Text:
1. A method of handling an authorization request, the method comprising: a policy controller receiving an authorization request transmitted by an application function (AF) network node in response to signaling received from an end user device for initiating a service provided by the AF network node; and in response to receiving the authorization request transmitted by said AF network node in response to the signaling received from the end user device for initiating a service provided by the AF network node, the policy controller: performing a first authorization check to determine a first authorization status of the service; sending an authorization response to the AF network node, said authorization response indicating the first authorization status of the service; performing a second authorization check to determine a second authorization status of the service; determining whether the second authorization status is different than the first authorization status; and sending to the AF network node a message indicating that the authorization status of the service has changed in response to determining that the second authorization status is different than the first authorization status, wherein performing the first authorization check comprises the policy controller obtaining from a subscriber database, at a first point in time, first subscription data associated with the end user device and using the obtained first subscription data to determine the first authorization status; and performing the second authorization check comprises the policy controller receiving from a subscriber database, at a later point in time, second subscription data associated with the end user device and using the obtained second subscription data to determine the second authorization status.