Drahtloses Kommunikationssystem, drahtlose Kommunikationsvorrichtung und Verfahren

Details

Veröffentlichungs-Nr.

EP2432137

Aktenzeichen

EP11181539

Anmeldetag

16. September 2011

Veröffentlichung

6. Juli 2016

Rechtsraum

EP

IPC

H04B7/06H04B7/04H04B7/26H04J3/00H04L12/417H04Q11/04H04W74/02H04W74/08H04W84/18

Abstract

A wireless communication system (300) includes wireless terminals (I, A, B, C; 100) configuring an equally distributed network having no base station. Each of the wireless terminals (I, A, B, C; 100) includes an SDM transmitting unit (10) that includes an array antenna including a plurality of antennas and generates a plurality of directional radio signals to be transmitted to other terminals, each of which is obtained by superimposing a plurality of radio signals at the antennas, each of the radio signals at the antennas being composed of modulated data for each of the other terminals; a single-system receiving unit (20); and a TDMA control unit (30) that controls a transmission operation of the SDM transmitting unit (10) and a reception operation of the receiving unit (20) in a time division manner. Using a TDMA scheme, the wireless terminals (I, A, B, C; 100) are controlled such that one of the wireless terminals acquires a transmission right for a predetermined time period to simultaneously transmit the generated directional radio signals from the SDM transmitting unit (10), while during the predetermined time period, the receiving units (20) of the other wireless terminals having no transmission right simultaneously receive their corresponding directional radio signals.

Anmelder

Firma

Ricoh Company, Ltd.

Land

🇯🇵 Japan

Fachgebiete