Patent ID: 8611214

Claim:
A detection function device for inspecting media transported through a bearer layer in order to detect events occurring on a per service data flow basis, the bearer layer being capable of bearing several service data flows, each service data flow including at least one Internet Protocol (IP) flow, the detection function device comprising: a first output that transmits the media: a storage device that stores Quality of Service (QoS)-related rules, the QoS-related rules including service data flow filters and lists of events to be notified per service data flow; a filter that inspects IP flows through the media by using the service data flow filters stored for the QoS-related rules; an event detector that detects when an event to be notified per service data flow occurs for the inspected IP flows; and a second output that notifies a QoS-control function device of the detection of an event in the list of events to be notified for a service data flow, the QoS-control function device being in charge of guaranteeing into the bearer layer QoS requirements negotiated through a signaling layer.