Patent ID: 7881200
Filing Date: 2011-02-01
Classification: H04L,Y02D

Abstract:
1. A method of controlling a transmission rate, the method comprising: establishing, via multi-homing, a plurality of communication paths between a first communication device and a second communication device; setting a first path among the plurality of communication paths as a path for packet transmission or reception, changing the first path of the plurality of communication paths for packet transmission or reception from the first path to a second path among the plurality of communication paths; setting a congestion window and a slow-start threshold to be used in the second path to a congestion window and a slow-start threshold used in the first path and stored before the changing of the path for packet transmission or reception; and adapting the congestion window and the slow-start threshold to be used in the second path according to a packet loss generated in the second path, wherein the adapting the congestion window and the slow-start threshold to be used in the second path comprises: transmitting packets by an amount corresponding to the set congestion window through the second path; and changing the slow-start threshold to be used in the second path to a value which is obtained by subtracting an amount of lost packets among the transmitted packets from the set slow-start threshold, and changing the congestion window to be used in the second path to a value which is equal to the changed slow-start threshold.