APPARATUS AND METHOD FOR DETERMINING MINIMUM CONTENTION WINDOW SIZE IN MULTI USER MIMO BASED WIRELESS LAN SYSTEM

摘要

PURPOSE: An apparatus for determining the minimum value of a race time interval in a wireless LAN system of a multiuser multiple input multiple output in order to improve the data transmission efficiency of a data transmission system is provided to reduce the possibility of collisions between a plurality of stations. CONSTITUTION: A unit for determining a competitive time section minimum value(220) determines a race time interval minimum value based on the number of connection stations and the number of receiving antennas(210). A plurality of docking stations is connected to an access point. A broadcasting unit(230) broadcasts the determined competitive time section to the docking station. A receiving unit receives a message data from the docking station.