Mobile video delivery

摘要

Methods and apparatus, including computer program products, for mobile video delivery. A method includes, in a mobile network comprising at least a core element and one or more evolved Node Bs (eNBs), receiving a request to initiate a progressive download of a video object, splitting the requested video object into self-contained independent video segments, transrating each of the self-contained independent video segments for different rates, and delivering a segment from a rate bucket that matches a current network condition determined by bandwidth estimation.

主权项

1. A method comprising:
in a mobile network comprising at least a core element and one or more evolved Node Bs (eNBs), receiving a request to initiate a progressive download of a video object; splitting the requested video object into self-contained independent video segments; transrating each of the self-contained independent video segments for different rates; determining, using bandwidth estimation, a current network condition of a network, wherein bandwidth estimation comprises a combination of:
Transmission Control Protocol (TCP) based bandwidth estimation, andX2 interface based bandwidth estimation for Long Term Evolution (LTE) networks; and delivering a segment from a rate bucket suitable for the current network condition determined by the bandwidth estimation, wherein the TCP based bandwidth estimation comprises monitoring a media server's TCP socket queue length, further wherein monitoring the media server's TCP socket queue length comprises:
obtaining the TCP socket queue length periodically to determine a drain rate, andexecuting an Active Queue Management (AQM) process on the TCP socket queue length to detect impending congestion on the TCP link.