Digital wireless distributed communications system (wdcs) employing a centralized spectrum chunk construction of communications channels for distribution to remote units to reduce transmission data rates

A central unit in a digital wireless distributed communications system (WDCS), comprising:

• a plurality of downlink input interfaces each configured to receive a downlink digital communications channel among a plurality of downlink digital communications channels, from a signal source among a plurality of signal sources;
• a plurality of digital up-converter (DUC) circuits each configured to:
• receive a respective downlink digital communications channel among the plurality of downlink digital communications channels;
• interpolate the downlink digital communications channel to a defined sample rate for a target bandwidth of a downlink spectrum chunk of one or more downlink spectrum chunks into an interpolated downlink digital communications channel;
• and
• frequency up-shift the interpolated downlink digital communications channel at a defined position in the downlink spectrum chunk of the one or more downlink spectrum chunks;
• a downlink routing circuit configured to receive the interpolated downlink digital communications channels interpolated by the plurality of DUC circuits and route each of the interpolated downlink digital communications channels each corresponding to a downlink spectrum chunk of the one or more downlink spectrum chunks to one or more downlink routing output ports among a plurality of downlink routing output ports based on, a downlink routing map;
• at least one data stream (DS) construction circuit configured to combine the one or more downlink spectrum chunks routed to the one or more downlink routing output ports, into one or more downlink spectrum chunk streams;
• and
• at least one downlink output interface coupled to at least one communications medium communicatively coupled to at least one remote unit among a plurality of remote units, the at least one downlink output interface configured to distribute the one or more downlink spectrum chunk streams to the at least one remote unit.