FIELD: radio engineering, communication.
SUBSTANCE: invention relates to communication engineering and can be used in wireless communication systems. The invention provides a data transmission device which includes a first wireless data transmission part configured to wirelessly transmit data according to a first data transmission scheme, and a second wireless data transmission part configured to wirelessly transmit data according to a second data transmission scheme, wherein a bandwidth higher than in the first data transmission scheme is used, wherein the second wireless data transmission part determines reception time of a beacon signal transmitted according to the second data transmission scheme, based on the time when a given control signal is received by the first wireless data transmission part, and generates, at the determined reception time, a reception beam having predetermined directivity.
EFFECT: high throughput and reliability of receiving data.
7 cl, 10 dwg
