Patent ID: 8837453
Filing Date: 2014-09-16
Classification: H04L

Abstract:
1. A method for transmitting video data in a multicast network having no data acknowledgment functionality, the video data including a plurality of video frames, each video frame of the plurality of video frames having a respective frame type indicative of a priority among the plurality of video frames, wherein decoding of less significant video frames is dependent on data from more significant respective video frames, the method comprising: identifying the respective frame type for a video frame of the plurality of video frames, wherein the priority of the video frame corresponds to a decoding interdependency between the video frame and at least one other video frame of the plurality of video frames wherein decoding of the at least one other video frame is dependent on data from the video frame wherein a greater number of other video frames that depend on the video frame a higher the priority of the video frame, and wherein the video frame is assigned a respective profit value corresponding to a number of other video frames of the plurality of video frames that depend on data from the video frame for decoding; when the respective frame type of the video frame is of more significance which corresponds to a high priority, transmitting the video frame in accordance with an enhanced transmission scheme comprising successively transmitting the video frame for a repeated first number of times based on the respective profit value; and when the respective frame type of the video frame is of less significance which corresponds to a low priority, transmitting the video frame in accordance with a transmission scheme comprising successively transmitting the video frame for a number of times less than the repeated first number of times.