Patent ID: 11882048
Assignee: DENSO CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. A relay device comprising:
one or more processors, wherein:
the one or more processors performs:
relaying between a target communication line defined as a congestion determination target and a client that transmits an acknowledgement (ACK) signal to a communication partner in a case where a signal is received from the communication partner, the relay device;
determining whether a congestion occurs on the target communication line; and
limiting communication of the ACK signal by a capture process that captures the signal communicated by the client in a case where it is determined that the congestion occurs on the target communication line;
wherein:
the signal to be captured in the capture process is a signal received from the target communication line and has a destination which is the client;
in the capture process, a transmission speed of a captured signal for transmitting to the client is set to be lower than a reception speed of the captured signal; and
the transmission speed of the captured signal for transmitting to the client is set to be lower by at least one of: subtracting a preset constant value from the reception speed of the captured signal; increasing a degree to which the transmission speed is reduced with respect to the reception speed as a degree of the congestion increases; multiplying the reception speed of the captured signal by a coefficient smaller than 1 which is preliminarily determined; and setting the transmission speed to be a predetermined speed when the reception speed is larger than another predetermined speed.