Scheduler and method for scheduling transmissions in a communication network
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United States of America Patent
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Mar 25, 2008
Grant Date -
Oct 21, 2004
app pub date -
Apr 15, 2003
filing date -
Apr 15, 2003
priority date (Note) -
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Abstract
A scheduler and a method for scheduling transmissions to a plurality of users in a communication network assigns a higher target minimum throughput for receiving a next transmission to a user based on a quality of service (QoS) class of the user. A token count that tracks the user's achieved performance relative to a target minimum throughput Is determined for each user in given timeslot, and a weight is determined for each user based on one or more of the token count and a current rate requested by the user. A user having the highest weight as determined by a weight function is scheduled to be served the next transmission. User priority for scheduling may be downgraded if an average data rate requested by the user is less than the target minimum throughput.
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