Multiplex communications – Fault recovery – Bypass an inoperative channel
Reexamination Certificate
2007-08-06
2011-12-27
Mui, Gary (Department: 2464)
Multiplex communications
Fault recovery
Bypass an inoperative channel
C370S331000, C455S436000
Reexamination Certificate
active
08085656
ABSTRACT:
Provided are an apparatus and method for improving transmission control protocol (TCP) performance using path recovery notification over a wireless network. The apparatus includes: a path recovery manager which detects a mobile host recovered from a temporary disconnection state and then outputs a detection signal to notify the detection result; a path recovery notification manager which receives the detection signal and generates an ACK (acknowledgement) packet to inform a transmitting end that the mobile host is recovered; and a first packet transceiver which transmits/receives the generated ACK packet and a data packet. Accordingly, a temporary disconnection state of a wireless network is explicitly informed to a transmitting end so as to transmit only lost packets without performing unnecessary congestion control, thereby improving TCP performance.
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International Search Report for PCT/KR2007/003769, mailed Nov. 13, 2007.
Kim Jongik
Kim Ju-Wan
Lee Myung-Jin
Yoon Daesub
Electronics and Telecommunications Research Institute
Mui Gary
Staas & Halsey , LLP
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