DEVICES AND METHOD FOR GUARANTEEING QUALITY OF SERVICE PER SERVICE DATA FLOW THROUGH THE BEARER LAYER
First Claim
1. An application function device for submitting Quality of Service (QoS) requirements negotiated through a signaling layer and to be guaranteed for media transport through a bearer layer, the bearer layer being a media transport layer capable of bearing several service data flows, each service data flow including at least one Internet Protocol (IP) flow, the application function device comprising:
- a negotiation unit that negotiates with a user equipment QoS requirements to be guaranteed for media transport through the bearer layer;
a first output that submits a session identifier along with a description of media negotiated for a service data flow towards a QoS-control function device, which is in charge of guaranteeing into the bearer layer the QoS requirements negotiated through the signaling layer; and
a first input that receives a notification from the QoS-control function device about a detected event related to the service data flow.
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Accused Products
Abstract
In scenarios where the quality of service is negotiated through a signalling layer whereas the services are actually carried through a bearer layer, application functions at the signalling layer are not always aware of how quality of service is individually accomplished at the bearer layer on a service basis. The invention provides a method and devices whereby events are detected on a service data flow basis at a detection device in the bearer layer and notified towards an application device in the signalling layer via a control device between the signalling and the bearer layer. The list of events to be notified is obtainable at the control device from the application device and is included in Quality of Service related rules, along with service data flow filters. This Quality of Service related rules are provided to the detection device for inspecting individual service data flows in order to detect and notify the indicated events.
13 Citations
25 Claims
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1. An application function device for submitting Quality of Service (QoS) requirements negotiated through a signaling layer and to be guaranteed for media transport through a bearer layer, the bearer layer being a media transport layer capable of bearing several service data flows, each service data flow including at least one Internet Protocol (IP) flow, the application function device comprising:
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a negotiation unit that negotiates with a user equipment QoS requirements to be guaranteed for media transport through the bearer layer; a first output that submits a session identifier along with a description of media negotiated for a service data flow towards a QoS-control function device, which is in charge of guaranteeing into the bearer layer the QoS requirements negotiated through the signaling layer; and a first input that receives a notification from the QoS-control function device about a detected event related to the service data flow. - View Dependent Claims (2, 3, 4, 5)
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6. A method of guaranteeing into a bearer layer Quality of Service (QoS) requirements negotiated through a signaling layer, the bearer layer being a media transport layer capable of bearing several service data flows, each service data flow including at least one Internet Protocol (IP) flow, the signaling layer being used for signaling how media transported through the bearer layer should be treated, the method applied in an application function device of the signaling layer and comprising the steps of:
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negotiating with a user equipment QoS requirements that are to be guaranteed for media transport through the bearer layer; submitting towards a QoS-control function device, which is in charge of guaranteeing into the bearer layer the QoS requirements, a session identifier along with a description of media negotiated for a service data flow; and receiving a notification from the QoS-control function device about a detected event related to the service data flow. - View Dependent Claims (7, 8, 9, 10)
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11. A QoS-control function device for guaranteeing into a bearer layer Quality of Service (QoS) requirements negotiated through a signaling layer, the bearer layer being a media transport layer capable of bearing several service data flows, each service data flow including at least one Internet Protocol (IP) flow, the signaling layer being used for signaling how media transported through the bearer layer should be treated, the QoS-control function device comprising:
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a first input that receives a session identifier along with a description of media negotiated for a service data flow, from an application function device located in the signaling layer; a second input that receives a notification from a detection function device, which is in charge of inspecting media transported through the bearer layer, when an event related to a particular service data flow is detected; a first processor that correlates the description of the negotiated media with service data flows in the bearer layer, and that determines the application function device to be notified about the detected event; and a first output that notifies the application function device in the signaling layer about the detected event related to the particular service data flow. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method of guaranteeing into a bearer layer Quality of Service (QoS) requirements negotiated through a signaling layer, the bearer layer being a media transport layer capable of bearing several service data flows, each service data flow including at least one Internet Protocol (IP) flow, the signaling layer being used for signaling how media transported through the bearer layer should be treated, the method applied in a QoS-control function device and comprising the steps of:
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receiving a session identifier along with a description of media negotiated for a service data flow, from an application function device located in the signaling layer; receiving a notification from a detection function device, which is in charge of inspecting media transported through the bearer layer, when an event related to a particular service data flow is detected; correlating the description of the negotiated media with service data flows in the bearer layer, and determining the application function device in the signaling layer to be notified about the detected event; and notifying the application function device in the signaling layer about the detected event related to the particular service data flow. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification