Method and Apparatus for Increasing the Capacity and Coverage of a Multi-Sector, Omni Site

A base station unit of a multi-sector omni-radio base station sends different transmit signals to first and second splitters, via first and second feeders, respectively, according to transmit diversity, spatial multiplexing, or both. The first splitter splits the transmit signal sent thereto amongst sector antennas in a first set of sector antennas, and the second splitter splits the transmit signal sent thereto among sector antennas in a second set of sector antennas. These first and second sets provide coverage for some of the same sectors of a geographic area. Finally, first and second combiners combine signals received by the sector antennas in the first or second set, respectively, at least one of those signals having first been converted to a different frequency, and send the resulting composite signal to the base station unit, via the first or second feeder, respectively.