METHODS AND SYSTEMS FOR PACKET DIFFERENTIATION

• US 20150229970A1
• Filed: 08/10/2012
• Published: 08/13/2015
• Est. Priority Date: 08/18/2011
• Status: Abandoned Application

• Current Assignee: InterDigital Communications LLC (InterDigital, Inc.), VID SCALE Inc. (InterDigital, Inc.)
• Original Assignee: VID SCALE Inc. (InterDigital, Inc.)
• Inventors: Ma, Liangping, Zeira, Ariela, Shaheen, Kamel M., Liu, Hang, Deng, Zhuorong, Liu, Weimin, Rapaport, Avi, Chen, Zhifeng, Hepler, Edward L., Miller, James M., Pragada, Ravikumar V., Ryu, Eun, Wallace, Chris
• Application Number:
  US14/239,494
• Publication Number:
  US 20150229970A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 47/20 Traffic policing
• CPC Class Codes: H04L 47/2408 for supporting different services, e.g. a differentiated services [DiffServ] type of service
• CPC Class Codes: H04L 47/34 ensuring sequence integrity, e.g. using sequence numbers
• CPC Class Codes: H04L 47/624 Altering the ordering of packets in an individual queue
• CPC Class Codes: H04L 49/3009 Header conversion, routing tables or routing tags
• CPC Class Codes: H04L 65/4053 without floor control
• CPC Class Codes: H04L 65/762 at the source reformatting of additional data in video distribution servers H04N21/2355
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04N 19/66 involving data partitioning, i.e. separation of data into packets or partitions according to importance
• CPC Class Codes: H04W 28/065 using assembly or disassembly of packets
• CPC Class Codes: H04W 4/18 Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals

Abstract

Methods and systems are disclosed facilitate differentiated QoS service for packets within a single packet stream. For example, extended QCI values may be used to differentiate service of video packets associated with different priorities. A flexible representation of QoS requirements/parameters is disclosed where QoS may be defined as a hyperspace that is a function of base QoS parameters. A WTRU may explicitly specify and/or request desired QoS parameters. A WTRU may be configured to perform one or more of video packet separation into a plurality of video packet sub-streams, merging of the video packet sub-streams, and/or reordering of the packets included in the video packet sub-streams. Techniques may be utilized to exposing more information to a data transmission network regarding the type of video packets (and/or other packets) being transmitted.

Claims

1-20. -20. (canceled)

21. A video packet separation method comprising:

generating a network abstraction layer unit (NALU) stream comprising one or more NALUs, wherein each of the NALUs comprises video information from a video stream;

separating the NALUs into at least two sub-streams, wherein the video information associated with each NALU sub-stream is of different importance;

encapsulating the NALUs associated with each of the sub-streams into one or more packets; and

transmitting the packets associated with each of the sub-streams over a network, wherein the packets associated with each of the sub-streams are transmitted using a different port number.

22. The method of claim 21, further comprising enabling the network to route the packets associated with each of the sub-streams based on the port number.

23. The method of claim 21, further comprising adding a middleware header to each of the NALUs, wherein the middleware header comprises a sequence number, and wherein the sequence number indicates an order of the NALUs in the video stream.

24. The method of claim 23 wherein the sequence number associated with each of the NALUs is unique.

25. The method of claim 23, further comprising:

receiving the packets associated with each of the sub-streams;

determining the sequence number from the middleware header and based on the sequence number merging each of the NALUs from the received packets into a combined NALU stream, wherein the NALUs are merged to establish the order of the NALUs in the combined NALU stream; and

sending the combined NALU stream to a video decoder.

26. The method of claim 21 wherein each of the sub-streams is assigned a different dynamic payload type, and wherein the dynamic payload type indicates importance of video information in each of the sub-streams.

27. The method of claim 26 wherein the dynamic payload type indicates an NRI value of the NALUs in each of the sub-streams.

28. The method of claim 26 wherein the dynamic payload type is negotiated using a conference control protocol.

29. A method comprising:

receiving one or more packets, wherein the packets are received via one or more ports;

merging the packets received via the ports into a stream;

determining a sequence number from a middleware header associated with each of the packets in the stream; and

reordering the packets of the stream based on the sequence number.

30. The method of claim 29, further comprising removing the middleware header from each of the packets in the stream and sending one or more network abstraction layer units (NALUs) associated with the packets in the stream to a video decoder.

31. A wireless transmit/receive unit (WTRU) comprising:

a processor configured to

generate a network abstraction layer unit (NALU) stream comprising one or more NALUs, wherein each of the NALUs comprises video information from a video stream;

separate the NALUs into at least two sub-streams, wherein the video information associated with each NALU sub-stream is of different importance;

encapsulate the NALUs associated with each of the sub-streams into one or more packets; and

a transmitter configured to

transmit the packets associated with each of the sub-streams over a network, wherein the packets associated with each of the sub-streams are transmitted using a different port number.

32. The WTRU of claim 31, wherein the processor is further configured to enable the network to route the packets associated with each of the sub-streams based on the port number.

33. The WTRU of claim 31, wherein the processor is further configured to add a middleware header to each of the NALUs, wherein the middleware header comprises a sequence number, and wherein the sequence number indicates an order of the NALUs in the video stream.

34. The WTRU of claim 33 wherein the sequence number associated with each of the NALUs is unique.

35. The WTRU of claim 33, further comprising:

a receiver configured to

receive the packets associated with each of the sub-streams;

a receiving processor further configured

determine the sequence number from the middleware header and, based on the sequence number, merge each of the NALUs from the received packets into a combined NALU stream, wherein the NALUs are merged to establish the order of the NALUs in the combined NALU stream; and

send the combined NALU stream to a video decoder.

36. The WTRU of claim 31 wherein each of the sub-streams is assigned a different dynamic payload type, and wherein the dynamic payload type indicates importance of video information in each of the sub-streams.

37. The WTRU of claim 36 wherein the dynamic payload type indicates an NRI value of the NALUs in each of the sub-streams.

38. The WTRU of claim 36 wherein the dynamic payload type is negotiated using a conference control protocol.

39. A wireless transmit/receive unit (WTRU) comprising:

a receiver configured to

receive one or more packets, wherein the packets are received via one or more ports; and

a processor configured to

merge the packets received via the ports into a stream;

determine a sequence number from a middleware header associated with each of the packets in the stream; and

reorder the packets of the stream based on the sequence number.

40. The WTRU of claim 39, wherein the processor is further configured to remove the middleware header from each of the packets in the stream and send one or more network abstraction layer units (NALUs) associated with the packets in the stream to a video decoder.