{TAIL ~ A method} including providing pseudo streaming media data to a terminal; receiving a transport control protocol acknowledgement from the terminal; estimating one or more network conditions of a network based at least in part on the TCP acknowledgement; determining an optimal session bitrate based on the estimated one or more network conditions; and providing pseudo streaming media data to the terminal based on {HEAD ~ the optimal session} bitrate 
{ TAIL ~ A method } including providing pseudo streaming media data to a terminal ; receiving a transport control protocol acknowledgement from the terminal ; estimating one or more network conditions of a network based at least in part on the TCP acknowledgement ; determining an optimal session bitrate based on the estimated one or more network conditions ; and providing pseudo streaming media data to the terminal based on { HEAD ~ the optimal session } bitrate
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