UMLAUFZEITABSCHÄTZUNG

摘要

Known methods for estimating RTT are generally unsuitable for use by a simplex receiver. The term "simplex receiver" is used here to refer to a receiver or destination node which will not be sending data back to an associated transmitter or source node. Known methods typically involve sending specific data transmissions and this is not possible from a simplex receiver. This problem is addressed by making use of flow control mechanisms in communications protocols. By using the flow control mechanisms we have been able to enable a simplex receiver to estimate RTT without the need to send specific data transmissions from the simplex receiver. Advantageously this can be achieved for a simplex receiver provided as a software application provided on a processor such as a personal computer using a conventional operating system. No modification to the communications protocol itself is essential.