Multiplex transmission system and bandwidth control method
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United States of America Patent
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May 6, 2003
Grant Date -
N/A
app pub date -
Jul 23, 1999
filing date -
Jul 23, 1997
priority date (Note) -
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Abstract
A multiplex system for multiplexing packets into ATM cells to be transmitted, which can implement effective use of channels corresponding to irregular traffic qualities in services with various types of quality conditions in an actual environment. In response to a connection establishment request (S402), current required bandwidths B1, . . . , Bm are changed to B'1, . . . , B'm by adding the new connection, which causes bandwidths X1, . . . , Xm which are assigned to the channels to be changed. When the desired bandwidth including the requested connection is less than an available bandwidth of the corresponding channel, an assigned bandwidth change processing (S406) is activated to assign new bandwidths in accordance with desired bandwidths. The bandwidth assignment change is carried out by changing ratios of extraction rates of packets from the buffers in the multiplex system.
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