Patent ID: 7808910
Filing Date: 2010-10-05
Classification: H04L

Abstract:
1. A communication terminal, comprising: a received byte number counting unit configured to count on a transmitting side a number of bytes of segments for which a receiving side acknowledges reception of the segments based on an acknowledgment transmitted from the receiving side; and a received byte number setting unit configured to set a congestion window or a slow start threshold when a packet loss occurs based on the number of bytes of segments counted by the received byte number counting unit; wherein at fast retransmission and fast recovery, the received byte number setting unit sets a number of bytes of segments counted by the received byte number counting unit or a half number of congestion windows whichever is larger as a slow start threshold, and sets the slow start threshold in the congestion window; and wherein at retransmission timeout, the received byte number setting unit sets a number of bytes of segments counted by the received byte number counting unit or a half number of congestion windows whichever is larger as a slow start threshold, and sets a maximum segment size that the transmitting side can transmit in the congestion window.