Patent ID: 11876714
Assignee: BEQUANT S.L.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A method for congestion control in a data communication protocol employing acknowledged communication in which a transmitting node transmits data to a receiving node and the receiving node acknowledges receipt of the data, the method to be performed by the transmitting node and comprising:
measuring a flight size indicating an amount of data sent by the transmitting node and not yet acknowledged by the receiving node;
measuring a transmission rate;
determining a trend of the transmission rate, wherein the trend is derived from a transmission rate gradient calculation, in which either the transmission rate measurements or the transmission rate gradient calculations or both are filtered to reduce their temporal variability;
detecting whether there is a congestion according to the determined trend of the transmission rate;
upon detection of the congestion, modifying a maximum amount of unacknowledged data which the transmitting node may transmit; and
transmitting data while respecting the maximum amount of unacknowledged data which the transmitting node may transmit.