Systems and methods for using client-side video buffer occupancy for enhanced quality of experience in a communication network

摘要

Systems and methods can use client-side video buffer occupancy for enhanced quality of experience in a communication network. The systems and methods provided herein can drive changes in the communication system using control responses. Example control responses include responses for scheduling of packets under capacity constrained conditions. An access node, such as a base station, may transmit video from a server to a client in a user device. The access node can estimate client-side video buffer occupancy and predict video playback stalls. The client-side video buffer occupancy can be estimated by emulating behavior of the client. The buffer occupancy can be used to enhance quality of experience for the user. For example, when the buffer occupancy is low, the access node may increase scheduling priority of packets conveying the video.

主权项

1. A network node, comprising:
a first interface configured to provide communications with a terminal node; a second interface configured to provide communications with a video server; and a processor coupled to the first interface and the second interface, the processor arranged for
parsing a metadata portion of a video stream to be delivered to the terminal node to determine characteristics of the video stream, the characteristics of the video stream including a mapping from byte locations in the video stream to corresponding decoding time stamps,estimating occupancy of a video buffer in the terminal node using the mapping from byte locations in the video stream to corresponding decoding time stamps, andgenerating one or more performance metrics based at least in part on the estimated occupancy of the video buffer in the terminal node.