Improvements to data transmission systems

Abstract

Abstract This invention relates to the problem of making efficient use of resources in broadband telecommunications networks when handling bursty data traffic. A new technique is provided to shape the data traffic profile in order to maximise the efficiency of the bandwidth reservation scheme whilst guaranteeing a defined quality of service in terms of data loss and delay. The shaper, called the Fast Bandwidth Reservation Shaper (FBRS), is essentially a FIFO buffer with three thresholds (T1-T3), a server and an FRP control function which monitors the state of the queue and its associated thresholds, alters the service rate of the server and handles the FRP protocol. By careful choice of the three thresholds and service rates, the FBRS can improve the efficiency of fast bandwidth allocation schemes by reducing the peak bitrate and increasing the duration of small data bursts and by guaranteeing a minimum burst duration, for all but the smallest data bursts, that is in excess of the round trip delay.

Inventors

• 👤 Simon Paul Davis

Bibliographic Details