Methods and systems are provided to facilitate communication with a
plurality of remote units in a communication area that includes a
plurality of spatial sectors. The system includes a network controller
configured to receive and transmit under IEEE 802.11 specifications, and
a plurality of directional antennas coupled to the network base station.
Each of directional antennas functions as an access point for a
respective spatial sector. The directional antennas and the network
controller are combined as a single base station apparatus in an
exemplary embodiment. Further, an exemplary network controller is
configured to concurrently transmit a plurality of the data frames to
more than one of the spatial sectors, and to synchronize the
transmissions in a manner whereby all of the concurrently transmitted
frames end simultaneously.