INBUILDING DISTRIBUTED ANTENNA SYSTEM CONFIGURING MIMO LINK

摘要

PURPOSE: An in-building distributed antenna system comprising a MIMO link is provided to perform MIMO SM(Multiple Input Multiple Output Spatial Multiplexing) communication without using a plurality of cable strand. CONSTITUTION: A base station transmits a plurality of parallel signal stream to an antenna domain. The first converter converts the plurality of parallel signal streams into a plurality of parallel streams of other domain. The second converter converts the plurality of parallel signal streams of other domain into a plurality of parallel signal streams of the antenna domain. A relay station transmits the plurality of parallel signal streams outputted from the second converter through a plurality of antennas.