Title:
【発明の名称】空間分割型多重通信方式
Document Type and Number:
Japanese Patent JPH0744512
Kind Code:
B2
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.
Inventors:
Takagi
Application Number:
JP7193090A
Publication Date:
May 15, 1995
Filing Date:
March 23, 1990
Export Citation:
Assignee:
Ko electric power high-speed communication research institute
International Classes:
H04J4/00; H04B7/24; H04J99/00; (IPC1-7): H04J4/00; H04J15/00
Domestic Patent References:
| JPS5541092A |
Attorney, Agent or Firm:
Takehiko Suzue (3 outside)