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Air-time fair transmission regulation without explicit traffic specifications for wireless networks

  • US 9,215,621 B2
  • Filed: 11/16/2005
  • Issued: 12/15/2015
  • Est. Priority Date: 11/22/2004
  • Status: Active Grant
First Claim
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1. An apparatus for non-TSPEC (traffic specification) air-time fair transmission control regulation, comprising:

  • a memory comprising n queues having corresponding pre-determined scheduling weights qi,old=qi,new, i=1, 2, . . . , n, where n is an integer more than 1;

    a queue-level scheduler to enqueue a received packet and dequeue for transmission an enqueued packet of at least one flow in a queue of said n queues respectively according to a pre-determined queue allocation scheme and a weighted transmission scheduling scheme using said weights qi,new, i=1, 2, . . . , n; and

    a time monitor module to track at least a per-byte transmission time of at least one of the n queues and to determine for determining if there is an increase in a transmission time per byte T i,t,j for each queue of said at least one flow enqueued therein and adjusting the corresponding scheduling weights qi,new, i=1, 2, . . . , n according to a pre-determined weight adjustment scheme if the per-byte transmission time of the at least one of the n queues exceeds a threshold.

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