Patent ID: 9692563
Date: 2017-06-27
CPC Classifications: H04B,H04J,H04L

Claim:
1. A method comprising: receiving, at a Converged Cable Access Platform (CCAP) core from a remote physical layer (R-PHY) node over a converged interconnect network (CIN) in a Data Over Cable Service Interface Specification (DOCSIS) R-PHY network environment, an indication of a collision level in an upstream network between the R-PHY node and a plurality of cable modems (CMs); calculating a congestion level in the upstream network based on the collision level indicated by the R-PHY node; adjusting back-off window parameters for cable modem retransmissions based on the calculated congestion level; and adjusting a contention transmission opportunity density in a downstream Media Access Protocol (MAP) message based on the adjusted back-off window parameters, wherein the adjusting the contention transmission opportunity density comprises calculating a maximum number of contention transmission opportunities in a specific back-off window bounded by the adjusted back-off window parameters, and changing a value of the contention transmission opportunity density on a specific channel for a specific contention type to ensure the maximum number of contention transmission opportunities within a maximum acceptable access delay.