HYBRID AUTOMATIC REPEAT REQUEST BUFFER FLUSHING MECHANISM
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United States of America Patent
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Issued Date -
Apr 2, 2009
app pub date -
Mar 10, 2008
filing date -
Oct 1, 2007
priority date (Note) -
Abandoned
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Abstract
A novel and useful buffer flushing mechanism for use in a communications link. Using hybrid automatic repeat request (HARQ) protocol mechanisms, network elements in a radio access network initiate a HARQ buffer flushing operation. Network elements on both ends of a communication link can autonomously initiate coordinated or uncoordinated flushing of their respective HARQ process buffers based on internal algorithms and/or criteria previously negotiated between the two elements. The flushing operation may be performed on all or a part of the buffer (transmit and/or receive) or on certain complete or partial accumulated information. The criteria may comprise any suitable data including, for example, timeout data, thresholds based on one or more link quality parameters, data measurements exceeding a threshold, etc. which can be used to trigger a buffer flushing event.
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