DATA TRANSFER APPARATUS, METHOD OF CONTROLLING DATA TRANSFER, AND A DATA STREAM

摘要

One aspect of the present invention provides an apparatus acting as a server for estimating parameters of data transfer across a communication network. The server apparatus includes a transceiver component which enables data transfer operations and an estimator component which measures throughput as one of the parameters of the data transfer operations. The estimator component further determines an indicator value of the throughput corresponding to an estimated bottleneck bandwidth, calculated from data traffic measurements. The indicator value is attributable to and indicates optimal parameters of the data transfer operations, calculated from measurements associated with the data traffic. In particular, the indicator value can be used to update an estimate of the bottleneck bandwidth, depending on congestion state of the communication network through which the data transfer operations take place. The server apparatus also includes a processor component in communication with the transceiver and estimator components and configured to prepare succeeding data transfer operations to a client apparatus through the communication network based on the bottleneck bandwidth estimate determined by the estimator component