Space-division multiplex communication method of executing multiplex communication

A time-division multiplex communication method of executing multiplex communication comprising the steps of:

• outputting a plurality of radio beams of a same frequency, simultaneously radiated from a plurality of transmission/reception stations in different directions;
• synchronically rotating said plurality of radio beams radiated from each of said transmission/reception stations;
• allowing a plurality of transmission/reception stations arranged in an area in which said radio beams can be transmitted and received, a plurality of said radio beams from said transmission/reception stations except one transmission/reception station being time-divisionally divided by a number in accordance with a rotational angular speed so as to intermittently radiate a radio beam on said one transmission/reception station, and said one transmission/reception station selecting and receiving at least one radio beam in synchronism with intermittent timings;
• and
• setting said intermittent timings by use of a sync radio beam commonly provided in each of said stations, radio beams of a same frequency radiating from said transmission/reception stations being time-divisionally divided in order for one of transmission/reception stations to receive said time-divided radio beams radiated from the other transmission/reception stations, thereby executing interstation bidirectional multiplex communication.