FLEXIBLE DIPLEXER WITH DYNAMICALLY CONFIGURABLE BAND-SPLIT IN HYBRID FIBER COAX DEPLOYMENTS

A flexible diplexer may include a programmably reconfigurable filter pair capable of rendering a variety of band-split arrangements in a digital signal processor (DSP) backed design in hybrid fiber coaxial cable plant/system deployments. The flexible diplexers may thereby meet a larger range of band-split requirements, including the full range of band-split requirements. Configurability may be achieved by digitizing the signal at either input interface of a diplexer in a diplexer/amplifier complex after bandpass filtering, and two-to-four wire conversion at the respective forward (e.g. downstream) and reverse (e.g. upstream) input interfaces. A new band-split may be obtained by updating the digital filters using specified coefficient sets determined off-line and retrieved from memory. The flexible diplexer/amplifier complex may enable the implementation of additional functionality including equalization and tilt regeneration, self-interference cancellation, virtual segmentation, and/or creation of auxiliary service points to provide access to/from a small cell base station and/or Wi-Fi access point.