Multiplex communications – Data flow congestion prevention or control – Flow control of data transmission through a network
Reexamination Certificate
2008-01-22
2010-10-05
Yao, Kwang B (Department: 2473)
Multiplex communications
Data flow congestion prevention or control
Flow control of data transmission through a network
Reexamination Certificate
active
07808910
ABSTRACT:
The congestion in a network can be avoided by effectively utilizing a prepared network band even in a network where reception intervals of acknowledgments are not correct. According to the information about Ack or Sack (selective acknowledgment) received in a time of the minimum value of an RTT (rtt_min), the number of bytes of received segments (rcv_bytes) for which a receiving side acknowledges the reception is counted, and a received byte number setting unit16sets a congestion window (CWND) or a slow start threshold (SSTHRESH) when a packet loss occurs according to the number of bytes of received segments (rcv_bytes) counted by a received byte number counting unit14when a packet loss is detected by a loss detection unit15.
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Igarashi Ken
Yamazaki Ken-ichi
Crowell & Moring LLP
Huq Obaidul
NTT DoCoMo Inc.
Yao Kwang B
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