Paper - Remote Diagnosis of Adjacent Channel Interference in a High-Split System

Remote Diagnosis of Adjacent Channel Interference in a High-Split System (2023)

By Lei Zhou, Charter Communications

As the demand for network bandwidth continues to grow, the stress on the upstream direction of transmission becomes more pressing. This trend calls for more spectral resources for the upstream channels in a traditionally asymmetric coax-based access network. The DOCSIS® specification has defined mid-split and high-split spectrum allocation schemes to expand the upstream capacity. The work of this technical paper is to facilitate the deployment of mid-split and high-split DOCSIS networks with a proposed solution of managing potential radio frequency interferences among customer premises devices operating on the new spectral chart.

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