Multiplex communications – Wide area network – Packet switching
Patent
1993-08-09
1994-07-12
Safourek, Benedict V.
Multiplex communications
Wide area network
Packet switching
455 571, 342359, 342353, 370 77, H04J 300, H04B 156
Patent
active
053295226
ABSTRACT:
In a space-division multiplex communication method of executing multiplex communication according to this invention, a plurality of radio beams a--a' to d--d' radiated at same frequency in different directions and rotated at same rotational angular speed .omega. are independently received in synchronism with the rotational angular speed .omega. by a plurality of communication terminals R1 to R3 arranged at arbitrary positions in a space where the radio beams can be received, thereby realizing unidirectional multiplex communication using the same frequency. Interstation bidirectional multiplex communication is performed by introducing a frequency-division system to the communication terminals R1 to R3 of the unidirectional multiplex communication. The space-division multiplex communication method can effectively use a frequency by a multiplex communication system of space-dividing a radio beam.
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Safourek Benedict V.
Small Power Communication Systems Research Laboratories Co., Ltd
Ton Dang
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