METHOD OF CONTROLLING ADAPTIVE MODULATION CIRCUIT AND WIRELESS TRANSMISSION DEVICE PROVIDED WITH ADAPTIVE MODULATION CIRCUIT

摘要

FIELD: radio engineering, communication.;SUBSTANCE: Ethernet signal received from a wire transmission channel is transmitted to a one-to-one opposite station via a wireless transmission channel, and an Ethernet signal in an opposite station is again transmitted via the wire transmission channel. The invention provides a traffic statistics circuit which accumulates the traffic amount of the Ethernet signal associated with a time zone as statistical data. Wireless transmission capacity can be reduced by reducing the multilevel number of the modulation circuit in the time zone in which the traffic amount is small, based on the accumulated statistical data.;EFFECT: controlling transmission capacity.;5 cl, 3 dwg