画出在AWGN信道下的多用户上行和下行信道容量范围，在保证用户通信公平性的前提下，用Time Sharing和Rate Spliting是上行链路达到香农极限，用Time Sharing和CRX优化使下行链路达到香农极限，并通过仿真图形展现。-Draw in AWGN channel multi-user uplink and downlink channel capacity range, to ensure the user communications fairness premise with Time Sharing and Rate Spliting uplink Shannon limit is reached with Time Sharing and CRX optimization enable downlink Shannon limit is reached, and the simulation graphic show.