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Dynamically and fairly allocating RF channel bandwidth in a wideband cable system

  • US 8,861,546 B2
  • Filed: 03/06/2009
  • Issued: 10/14/2014
  • Est. Priority Date: 03/06/2009
  • Status: Active Grant
First Claim
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1. A non-transitory memory device encoded with instructions that, if executed, result in:

  • asymmetrically associating a plurality of Data Over Cable System Interface Specification (DOCSIS) bonding groups with a plurality of Radio Frequency (RF) channels, wherein the asymmetric association provides a first one of the DOCSIS bonding groups with access to a single one of the RF channels and a second one of the DOCSIS bonding groups with access to more than one of the RF channels;

    determining an aggregate demand value for each of the DOCSIS bonding groups of the asymmetric association and a target bandwidth amount for each of the DOCSIS bonding groups of the asymmetric association, the determined aggregate demand values for each DOCSIS bonding group based on assigned DOCSIS priority values of active service flows within that DOCSIS bonding group, wherein the target bandwidth amount for a particular one of the DOCSIS bonding groups of the asymmetric association is the product of that DOCSIS bonding group'"'"'s aggregate demand value and a ratio of the total bandwidth of all the RF channels over the sum of all of the determined aggregate demand values; and

    scheduling transmission of downstream DOCSIS bonding group traffic from a Cable Modem Termination System (CMTS) over a cable network according to the target bandwidth amounts, ensuring each active service flow is provided bandwidth substantially in proportion to its corresponding DOCSIS priority.

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