Radio frequency (RF) communication channel reconfiguration in remote antenna unit (RAU) coverage areas in a distributed antenna system (DAS) to reduce RF interference

A wireless distribution system (WDS) deployed in a building infrastructure, comprising:

• a plurality of remote unit coverage areas distributed over multiple floors of the building infrastructure and configured to communicate on a respective first radio frequency (RF) channel;
• and
• a head-end equipment (HEE) coupled to the plurality of remote unit coverage areas over a plurality of communications mediums, respectively, the HEE comprising a spectrum optimization unit;
• the spectrum optimization unit comprising:
• a spectrum analysis unit configured to:
• receive a plurality of sniffed RF signals from the plurality of remote unit coverage areas, respectively, wherein each of the plurality of sniffed RF signals comprises one or more RF signals sniffed by at least one remote unit in a respective remote unit coverage area;
• and
• for each of the plurality of sniffed RF signals:
• analyze the one or more RF signals comprised in the plurality of sniffed RF signals;
• and
• determine a respective second RF channel for the respective remote unit coverage area if the respective second RF channel is lesser-interfered than the respective first RF channel;
• and
• a controller configured to reconfigure one or more remote unit coverage areas among the plurality of remote unit coverage areas to communicate on one or more respective second RF channels in response to the one or more respective second RF channels being determined by the spectrum analysis unit, wherein the spectrum optimization unit further comprises a signal interface configured to:
• receive one or more downlink communications signals from one or more communications signal sources, each of the one or more downlink communications signals associated with a respective RF channel;
• receive a control signal from the controller, wherein the control signal identifies the one or more remote unit coverage areas to be reconfigured to operate on the one or more respective second RF channels;
• and
• for at least one of the one or more remote unit coverage areas to be reconfigured to operate on the one or more respective second RF channels:
• identify a downlink communications signal among the one or more downlink communications signals received from the one or more communications signal sources, wherein a respective RF channel of the downlink communications signal is the same as the respective second RF channel of the respective remote unit coverage area;
• and
• route the identified downlink communications signal to the respective remote unit coverage area.