Method and apparatus for updating and switching between bit loading profiles for transfer of data from an optical network to network devices in a coaxial cable network

Abstract

A conversion module including physical layer and control modules. The physical layer module, via an optical network, receives first data from a service provider. The control module, via a coaxial cable network: transmits the first data, via sub-carriers, from the conversion module to a first network module according to a first bit loading profile; requests from the first or second network module a report that indicates channel conditions respectively for the sub-carriers; based on the request, receives the report; updates a second bit loading profile based on the report; transmits, to the first or second network module, the updated second bit loading profile or a difference between the first and updated second bit loading profiles; and subsequent to performing a switch over between the first and second bit loading profiles, transmit second data according to the updated second bit loading profile to the first or second network module.