Method of determining bandwidth for selecting representation in DASH

Bandwidth determining method for a representation selected from the DASH according to the present invention, (a) calculating an average of the predicted bandwidth between the client and the server to be measured a plurality of times as the predicted average bandwidth; (B) calculating a bandwidth distribution predicting the distribution of the bandwidth prediction using the predicted average bandwidth; And (c) comprising the step of using the predicted bandwidth distribution with the predicted average bandwidth determines the bandwidth value for selecting a representation.