PCC control of HTTP adaptive bit rate video streaming protocols

A network node being in communication interaction with a user terminal, UE, and a media server, the network node comprising:

• a processor and a memory storing instructions, which when executed by the processor, cause the processor to:
• perform a deep packet inspection, DPI, on IP packets sent from the media server to the UE to detect:
• a plurality of media stream identifiers;
• and
• characteristics of respective different media streams associated with the plurality of media stream identifiers, the different media streams representing the same media information;
• and
• perform a DPI on IP packets corresponding to a request from the UE to the media server to obtain one of the different media streams and to detect a media stream identifier selected by the UE from the plurality of media stream identifiers;
• and
• modify the request by replacing the detected media stream identifier selected by the UE with any other of the media stream identifiers from the plurality of media stream identifiers.

A system comprising:

• a network node being in communication interaction with a user terminal, UE, and a media server, the network node comprising:
• a processor and a memory storing instructions, which when executed by the processor, cause the processor to:
• perform a deep packet inspection, DPI, on IP packets sent from the media server to the UE to detect
• a plurality of media stream identifiers;
• and
• characteristics of respective different media streams associated with the plurality of media stream identifiers, the different media streams representing the same media information;
• and
• perform a DPI on IP packets corresponding to a request from the UE to obtain one of the different media streams of the plurality of media stream identifiers and sent from the UE to the media server to detect a media stream identifier selected by the UE from the plurality of media stream identifiers;
• and
• modify the request by replacing the detected media stream identifier selected by the UE with any other of the media stream identifiers of the plurality of media stream identifiers;
• and
• a policy and charging rules function, PCRF, node.

A non-transitory computer storage medium storing a computer program including instructions configured, when executed on at least one data processor, causes the at least one data processor to execute a method in a network node being in communication interaction with a user terminal, UE, and a media server, of:

• performing a deep packet inspection, DPI, on IP packets sent from the media server to the UE to detect:
• a plurality of media stream identifiers;
• and
• characteristics of respective different media streams associated with the plurality of media stream identifiers, the different media streams representing the same media information;
• performing a DPI on IP packets sent from the UE to the media server to detect a media stream identifier selected by the UE from the plurality of media stream identifiers, the IP packets corresponding to a request to obtain one of the different media streams;
• and
• modifying the request by replacing the detected media stream identifier selected by the UE with any other of the media stream identifiers from the plurality of media stream identifiers.