Method to sustain TCP connection
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United States of America Patent
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-
Apr 3, 2001
Grant Date -
N/A
app pub date -
Apr 22, 1997
filing date -
Apr 22, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to network communication systems for managing client/server connections in a wireless environment. In accordance with the invention, a mobile communication unit (ie., client), deploys keep alive packets at selected times in order to reset a keep idle timer of a server (e.g., host computer). By periodically resetting the keep idle timer a current connection between the mobile communication unit and server can be maintained as long as desired even when the mobile communication unit is in a power suspend mode. When in a power suspend mode, the mobile communication unit can briefly awake long enough to activate its transmitter and send a keep alive packet to the server to maintain the current connection. In this manner, the mobile communication unit can obtain the power savings of being in primarily a power suspend mode, but still prevent the current connection from timing out.
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