Method and apparatus for transmitting packet data having compressed header
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United States of America Patent
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Jun 24, 2008
Grant Date -
Apr 15, 2004
app pub date -
Jul 11, 2003
filing date -
Aug 28, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A method is disclosed for transmitting and receiving packetized data having multiple protocol headers in a packet data communication system. An operating state of a network is determined, and a period for transmitting a full packet is decided according to a result of the determination. Full packets having uncompressed headers are transmitted during periodic transmission times according to the decided full-packet transmission period, and compressed packets are transmitted in other transmission times. If the operating state of the network is decided to be a congested state according to an average packet retransmission ratio produced in a period for measuring the operating state of the network, the full-packet transmission period is set to '1'. A value of the full-packet transmission period in an unloaded state is twice a value of the full-packet transmission period in a normal state. Thus, the number of packets to be discarded due to packet loss can be reduced, and the efficiency of transmission can be improved by header compression technologies.
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