Sectorization in distributed antenna systems, and related components and methods

A method of providing RF communications signals from radio bands distributed among a plurality of sectors in a distributed antenna system, the method comprising:

• receiving in a plurality of radio interfaces, a plurality of downlink radio frequency (RF) communications signals;
• in each radio interface among the plurality of radio interfaces:
• providing a downlink RF communications signal among the plurality of downlink RF communications signals;
• splitting the received downlink RF communications signal into a plurality of split downlink RF communications signals;
• selectively switching the split plurality of downlink RF communications signals to one or more sectors among a plurality of sectors;
• in each optical interface (OI) among a plurality of OIs, wherein each OI supports a subset of remote antenna units (RAUs) among a plurality of remote antenna units (RAUs):
• receiving the plurality of split downlink RF communications signals from the plurality of sectors;
• converting the plurality of split downlink RF communications signals into a plurality of downlink optical RF communications signals;
• and
• selectively switching the plurality of sectors in the OI to allocate a selected one or more sectors among the plurality of sectors to the subset of RAUs supported by the OI, to provide the downlink optical RF communications signal among the plurality of split downlink optical RF communications signals selectively switched to the one or more sectors, to the subset of RAUs.