System, apparatus for content delivery for internet traffic and methods thereof

Patent metadata

Field	Value
Publication number	US-9420055-B2
Application number	US-201113105625-A
Country	US
Kind code	B2
Filing date	May 11, 2011
Priority date	May 13, 2010
Publication date	Aug 16, 2016
Grant date	Aug 16, 2016

Abstract

In one embodiment, a method of serving media includes receiving a request to serve a cacheable media content to a user equipment at a second media server deployed in a second layer2 access network. The request is received around when the user equipment is handed-off from a first layer2 node in a first layer2 access network to a second layer2 node in the second layer2 access network and when a streaming session of the cacheable media content to the user equipment from a first media server is terminated. The method further includes determining if the cacheable media content is stored in a cache of the second media server, and serving the cacheable media content from the cache of the second media server to the user equipment if the media content is stored in the cache of the second media server.

First claim

What is claimed is:

1. A method of serving media, the method comprising:
at a deep packet inspection node, receiving a request to serve media content to a user equipment;
determining the user equipment is not a target for lawful interception;
based on the determination that the user equipment is not a target for lawful interception, determining the media content to be served is cacheable, without first determining whether the media content to be served is already cached; and
based on the determination that the media content to be served is cacheable, forwarding the request to serve the media content to a media controller to assign a media server to serve the user equipment;
forwarding the request to serve the media content to a content deep packet inspection (DPI-C) node.

2. The method of claim 1 , wherein the DPI-C node is deployed in a content delivery network, the user equipment being coupled to the content delivery network through a layer2 access network.

3. The method of claim 1 , further comprising:
wherein the media server is selected from a hierarchical set of media servers, the hierarchical set of media servers comprising a plurality of first type of media servers deployed in a plurality of layer2 access networks.

4. A method of serving media, the method comprising:
receiving lawful interception (LI) information regarding a user equipment at a first media server deployed in a first layer2 access network;
receiving a request to serve a cacheable media content to the user equipment, the user equipment being coupled through the first layer2 access network;
determining the user equipment is a target for lawful interception based on the received LI information;
serving the cacheable media content to the user equipment via a layer2 interworking function (IWF), in the first layer2 access network, serving as an interface and routing function between the first media server and layer2 nodes in the first layer2 access network; and
based on the determination that the user equipment is a target for lawful interception, generating a first mirrored delivery stream for transmitting all communications with the user equipment to a law enforcement monitoring facility;
wherein a deep packet inspection node further configured in an access network of the user equipment to forward the request to serve the media content to a content deep packet inspection (DPI-C) node, wherein the DPI-C node is configured to determine the media content to be served is cacheable.

5. The method of claim 4 , further comprising:
after a hand-off of the user equipment from the first layer2 access network to a second layer2 access network, serving the media content to the user equipment using a second media server in the second layer2 access network; and
from the second media server, generating a second mirrored delivery stream for transmitting all communications between the second media server and the user equipment to the law enforcement monitoring facility.

6. The method of claim 4 , further comprising:
transmitting the first mirrored delivery stream to the law enforcement monitoring facility, wherein the first mirrored delivery stream is forwarded through a layer3 node coupled to the law enforcement monitoring facility, the layer3 node being part of a layer3 network, which is a part of an access network for the user equipment.

7. The method of claim 4 , transmitting the first mirrored delivery stream to the law enforcement monitoring facility, wherein the first mirrored delivery stream is forwarded through a media controller in a content delivery network to a layer3 node, and from the layer3 node to the law enforcement monitoring facility, the layer3 node being part of a layer3 network, which is a part of an access network for the user equipment.

8. The method of claim 4 , further comprising:
receiving instruction to intercept communications with the user equipment from the law enforcement monitoring facility, wherein the instructions are received from a media controller in a content delivery network.

9. The method of claim 4 , receiving instruction to intercept communications with the user equipment from the law enforcement monitoring facility, wherein the instructions are received from a layer3 node interacting with the law enforcement monitoring facility.

10. A method of serving media, the method comprising:
receiving lawful interception (LI) information regarding a user equipment from a layer3 node;
receiving a request to serve a cacheable media content to the user equipment;
assigning a first media server in a first layer2 access network to serve the media content to the user equipment via a layer2 interworking function (IWF), in the first layer2 access network, serving as an interface and routing function between the first media server and layer2 nodes in the first layer2 access network;
transmitting the LI information to the first media server;
receiving a mirrored delivery stream of all communications between the first media server and the user equipment based on a determination that the user equipment is a target for lawful interception;
transmitting the mirrored delivery stream to the layer3 node; and
a deep packet inspection node further configured in an access network of the user equipment to forward the request to serve the media content to a content deep packet inspection (DPI-C) node, wherein the DPI-C node is configured to determine the media content to be served is cacheable.

11. The method of claim 10 , wherein the LI information regarding the user equipment is received at a media controller.

12. The method of claim 10 , wherein the mirrored delivery stream is destined to a law enforcement monitoring facility.

13. A method of serving media, the method comprising:
determining, by a deep packet inspection node, a user equipment is a target for lawful interception;
determining whether an interception level is normal or high;
in response to determining the interception level is normal, based on the determination that the user equipment is a target for lawful interception and the determination that the interception level is normal:
determining a media content to be served is not cacheable, and forwarding a request to serve the media content without caching; and
in response to determining the interception level is high, based on the determination that the user equipment is a target for lawful interception and the determination that the interception level is high:
receiving information regarding the media content from a content deep packet inspection (DPI-C) node, the information comprising information regarding whether the media content requested by the user equipment is cacheable, assigning a first media server from a hierarchical set of media servers to serve the user equipment based on the determination that the media content to be served is cacheable, the hierarchical set of media servers comprising a plurality of first type of media servers deployed in a plurality of layer2 access networks, the user equipment being coupled to a content delivery network through a layer2 access network of the plurality of layer2 access networks, redirecting the request to serve the media content to the first media server, and generating a mirrored delivery stream for transmitting all communications with the user equipment to a law enforcement monitoring facility.

14. A apparatus for streaming media, the apparatus comprising:
a receiver configured to receive a request to serve media content to a user equipment;
a determinator configured to determine whether the user equipment is not a target for lawful interception, wherein the determinato

Assignees

• Li Sanqi
• Qian Tao
• Han Houxiao
• Tian Hongbo
• Lin Kui
• Futurewei Technologies Inc

Inventors

• Li Sanqi
• Qian Tao
• Han Houxiao
• Tian Hongbo
• Lin Kui

Classifications

• H04M15/84

  Types of notifications · CPC title

• H04L12/1435

  volume-based · CPC title

• H04M15/83

  Notification aspects · CPC title

• H04M15/88

  Provision for limiting connection, or expenditure · CPC title

• H04L12/1489

  dependent on congestion · CPC title