Patent ID: 8085835
Filing Date: 2011-12-27
Classification: H04J,H04L,H04W

Abstract:
1. A cable modem, comprising: a receiver configured to receive a subsequent ranging response generated by a cable modem termination system, the subsequent ranging response generated after the cable modem termination system generates a first ranging response, and the subsequent ranging response comprising a plurality of ranging parameters including an upstream communications parameter, a timing adjust parameter, a power level adjust parameter, a carrier frequency offset parameter, and a plurality of equalization parameters, the equalization parameters including a number of ranging response equalizer coefficients; a pre-equalizer configured to: a gain stage configured to adjust a transmit power of the cable modem in response to an equalizer coefficient gain change value, the equalizer coefficient gain change value being determined, at least in part, from a ratio of a current equalizer coefficient gain value and a new equalizer coefficient gain value.