Dynamic bandwidth allocation circuit, dynamic bandwidth allocation method, optical network unit, PON system, dynamic bandwidth allocation program and recording medium
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United States of America Patent
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Sep 14, 2010
Grant Date -
Mar 13, 2003
app pub date -
Sep 6, 2002
filing date -
Sep 10, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
The aim of the present invention is to achieve a low delay and high bandwidth efficiency in an upstream bandwidth and to accurately reflect assured bandwidth in an actual transmitted bandwidth. To achieve this, in the present invention the maximum value and the transmission cycle of a requested bandwidth are set for each service class. The present invention allocates bandwidth to a service path terminating section based on excess allocated bandwidth and requested bandwidth of each service path terminating section. For each service path terminating section the present invention also selects one bandwidth out of a plurality of bandwidths requested by a service path terminating section in such a manner that the sum value of the allocated bandwidths of the plurality of service path terminating sections is within a predetermined range.
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