Optimizing Quality Of Service In A Content Distribution Network Using Software Defined Networking

• US 20160262044A1
• Filed: 02/09/2016
• Published: 09/08/2016
• Est. Priority Date: 03/08/2015
• Status: Active Grant

• Current Assignee: Alcatel-Lucent USA, Inc. (Nokia Corporation)
• Original Assignee: Alcatel-Lucent USA, Inc. (Nokia Corporation)
• Inventors: Nam, Hyunwoo, Calin, Doru
• Granted Patent: US 10,028,167 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 41/0895 Configuration of virtualised networks or elements, e.g. virtualised network function or OpenFlow elements
• CPC Class Codes: H04L 41/0896 Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities flow or congestion control using dynamic resource allocation, e.g. in-call renegotiation, H04L47/76
• CPC Class Codes: H04L 41/40 using virtualisation of network functions or resources, e.g. SDN or NFV entities
• CPC Class Codes: H04L 41/5019 Ensuring fulfilment of SLA
• CPC Class Codes: H04L 45/22 Alternate routing
• CPC Class Codes: H04L 45/302 Route determination based on requested QoS
• CPC Class Codes: H04L 45/42 Centralised routing
• CPC Class Codes: H04L 45/64 using an overlay routing layer
• CPC Class Codes: H04L 47/12 Avoiding congestion; Recovering from congestion
• CPC Class Codes: H04L 47/18 End to end
• CPC Class Codes: H04L 47/24 Traffic characterised by specific attributes, e.g. priority or QoS
• CPC Class Codes: H04L 47/2483 involving identification of individual flows
• CPC Class Codes: H04W 28/0268 using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] negotiating SLA or negotiating QoS H04W28/24
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]

Abstract

A content distribution network including a wireless network segment and an IP wide area network segment includes a virtualized Software Defined Networking (SDN) appliance for optimizing end-to-end quality-of-service (QoS) in the network. The SDN appliance is configured to identify and monitor traffic flows associated with respective content items, obtain end-to-end intelligence data associated with the traffic flow, the end-to-end intelligence data including quality-of-service (QoS) parameters associated with the traffic flow in the wireless network segment and the IP wide area network segment; and dynamically control the traffic flow in one or both of the wireless network segment and the IP wide area network segment based on the end-to-end intelligence data.

Claims

1. In a content distribution network including a wireless network segment and an IP wide area network segment, the wireless network segment operably connected to one or more user platforms, and the IP wide area network segment operably connected to one or more content servers, wherein the converged content distribution network is adapted to deliver content end-to-end from at least one of the one or more content servers to at least one of the one or more user platforms, a method comprising:

identifying at least one traffic flow associated with a content item allocated for delivery via the content distribution network;

obtaining end-to-end intelligence data associated with the traffic flow, the end-to-end intelligence data including quality-of-service (QoS) parameters associated with the traffic flow in the wireless network segment and the IP wide area network segment; and

dynamically controlling the traffic flow in one or both of the wireless network segment and the IP wide area network segment based on the end-to-end intelligence data.

2. The method of claim 1, performed by a virtualized Software Defined Networking (SDN) appliance in communication with one or more of a packet gateway and a Policy and Charging Rules Function (PCRF) of the wireless network segment and one or more SDN controllers of the IP network segment.

3. The method of claim 2, wherein the step of obtaining end-to-end intelligence data comprises the SDN appliance:

receiving, from the one or more of the packet gateway and PCRF, intelligence data including QoS parameters associated with the traffic flow in the wireless network segment;

receiving, from the one or more SDN controllers, intelligence data associated with the traffic flow in the IP wide area network segment.

4. The method of claim 2, wherein the step of dynamically controlling the traffic flow comprises the SDN appliance,

based on the end-to-end intelligence data, instructing one or more SDN controllers to change one or more routing paths associated with the traffic flow in the IP wide area network segment.

5. The method of claim 2, wherein the step of dynamically controlling the traffic flow comprises the SDN appliance,

based on the end-to-end intelligence data, instructing the packet gateway to change one or more routing paths associated with the traffic flow in the wireless network segment.

6. The method of claim 2, wherein the step of dynamically controlling the traffic flow comprises the SDN appliance,

sharing, with one or more SDN controllers of the IP wide area network segment, intelligence data obtained from the packet gateway including QoS parameters associated with the traffic flow in the wireless network segment, enabling the SDN controllers, based on the intelligence data, to dynamically change one or more routing paths associated with the traffic flow in the IP wide area network segment.

7. The method of claim 2, wherein the step of dynamically controlling the traffic flow comprises the SDN appliance,

sharing, with the packet gateway of the wireless network segment, intelligence data obtained from one or more SDN controllers associated with the traffic flow in the IP wide area network segment, enabling the packet gateway, based on the intelligence data, to dynamically change one or more routing paths associated with the traffic flow in the wireless network segment.

8. Apparatus for optimizing quality-of-service (QoS) in a converged content distribution network including a wireless network segment and an IP network segment, the wireless network segment operably connected to one or more user platforms, and the IP network segment operably connected to one or more content servers, wherein the converged content distribution network is adapted to deliver content end-to-end from at least one of the one or more content servers to at least one of the one or more user platforms, the apparatus comprising:

a wireless network segment interface;

an IP wide area network segment interface;

a memory; and

at least one processor configured to;

identify at least one traffic flow associated with a content item allocated for delivery via the content distribution network;

obtain end-to-end intelligence data associated with the traffic flow, the end-to-end intelligence data including quality-of-service (QoS) parameters associated with the traffic flow in the wireless network segment and the IP wide area network segment; and

dynamically control the traffic flow in one or both of the wireless network segment and the IP wide area network segment based on the end-to-end intelligence data.

9. The apparatus of claim 8, comprising a virtualized Software Defined Networking (SDN) appliance operable to communicate with one or more of a packet gateway and Policy and Charging Rules Function (PCRF) of the wireless network segment and one or more SDN controllers of the IP wide area network segment.

10. The apparatus of claim 9, wherein the processor is configured to:

receive, from the one or more of the packet gateway and PCRF of the wireless network segment, intelligence data including QoS parameters associated with the traffic flow in the wireless network segment;

receive, from the one or more SDN controllers, intelligence data associated with the traffic flow in the IP wide area network segment.

11. The apparatus of claim 9, wherein the processor is configured to:

based on the end-to-end intelligence data, instruct one or more SDN controllers to change one or more routing paths associated with the traffic flow in the IP wide area network segment.

12. The apparatus of claim 9, wherein the processor is configured to:

based on the end-to-end intelligence data, instruct the packet gateway to change one or more routing paths associated with the traffic flow in the wireless network segment.

13. The apparatus of claim 9, wherein the processor is configured to:

share, with one or more SDN controllers of the IP wide area network segment, intelligence data obtained from the packet gateway including QoS parameters associated with the traffic flow in the wireless network segment, enabling the SDN controllers, based on the intelligence data, to dynamically change one or more routing paths associated with the traffic flow in the IP wide area network segment.

14. The apparatus of claim 9, wherein the processor is configured to:

share, with the packet gateway of the wireless network segment, intelligence data obtained from one or more SDN controllers associated with the traffic flow in the IP wide area network segment, enabling the packet gateway, based on the intelligence data, to dynamically change one or more routing paths associated with the traffic flow in the wireless network segment.

15. In a content distribution network including a wireless network segment and an IP wide area network segment, the wireless network segment operably connected to one or more user platforms, and the IP wide area network segment operably connected to one or more content servers, wherein the content distribution network is adapted to deliver content end-to-end from at least one of the one or more content servers to at least one of the one or more user platforms, a system comprising:

a virtualized Software Defined Networking (SDN) appliance;

one or more of a packet gateway and Policy and Charging Rules Function (PCRF) associated with the wireless network segment; and

one or more SDN controllers associated with the IP wide area network segment,

the SDN appliance configured to;

identify at least one traffic flow associated with a content item allocated for delivery via the content distribution network;

obtain end-to-end intelligence data associated with the traffic flow, the end-to-end intelligence data including quality-of-service (QoS) parameters associated with the traffic flow in the wireless network segment and the IP wide area network segment; and

dynamically control the traffic flow in one or both of the wireless network segment and the IP wide area network segment based on the end-to-end intelligence data.

16. The system of claim 15, wherein the SDN appliance is configured to:

receive, from the packet gateway, intelligence data including QoS parameters associated with the traffic flow in the wireless network segment;

receive, from the one or more SDN controllers, intelligence data associated with the traffic flow in the IP wide area network segment.

17. The system of claim 15, wherein the SDN appliance is configured to:

based on the end-to-end intelligence data, instruct one or more SDN controllers to change one or more routing paths associated with the traffic flow in the IP wide area network segment.

18. The system of claim 15, wherein the SDN appliance is configured to:

based on the end-to-end intelligence data, instruct the packet gateway to change one or more routing paths associated with the traffic flow in the wireless network segment.

19. The system of claim 15, wherein the SDN appliance is configured to:

share, with one or more SDN controllers of the IP wide area network segment, intelligence data obtained from the packet gateway including QoS parameters associated with the traffic flow in the wireless network segment, enabling the SDN controllers, based on the intelligence data, to dynamically change one or more routing paths associated with the traffic flow in the IP wide area network segment.

20. The system of claim 15, wherein the SDN appliance is configured to:

share, with the packet gateway of the wireless network segment, intelligence data obtained from one or more SDN controllers associated with the traffic flow in the IP wide area network segment, enabling the packet gateway, based on the intelligence data, to dynamically change one or more routing paths associated with the traffic flow in the wireless network segment.