Patent ID: 7490160
Filing Date: 2009-02-10
Classification: H04L

Abstract:
1. A method of transmitting/receiving data, comprising: setting, by a sending host, a flag for requesting an ACK-response into a predetermined packet of packets contained in a window for data transmission; sending, by the sending host, the packet with the flag set thereinto and other packets without any flags contained in the window to a receiving host; and by the receiving host, receiving the packets sent by the sending host, and sending the ACK-response to the packet with the flag set thereinto among the received packets, wherein setting, by a sending host, a flag for requesting an ACK-response into a predetermined packet of packets contained in a window for data transmission comprises creating a new window if the sending host receives an ACK-response to a Transmission Control Protocol (TCP) segment used for Round-trip Time (RTT) measurement from the receiving host, and setting a flag for requesting an ACK-response into a new TCP segment for RTT measurement contained in the new window.