Method and apparatus for improving channel utilization
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United States of America Patent
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Jun 29, 2004
Grant Date -
N/A
app pub date -
May 18, 2000
filing date -
May 18, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Systems and methods applicable in the context of the TCP/IP suite of protocols explicitly are provided which allow for separate and preferential treatment of L4-L7 control packets compared to the treatment of L7 data packets. This provides a performance gain at the cost of providing such preferential treatment for high error and long delay channels such as wireless links. Advantageously, channel utilization may be increased, for example by 5-50% depending on link conditions, on high error and long delay transmission links. More generally the invention distinguishes between control packets such as transport layer (for example, TCP, OSI Layer 4 or L4) and application layer (for example, OSI Layer 7) control packets and data packets, and transmits the control packets with higher reliability and lower delays. The benefit may be significant for IP applications where data objects transferred are small and are bursty, e.g., Web browsing and e-mail access.
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