Problems for Existing Approaches Scenarios of suboptimal solutions 1.3M 1.3M femto A ●For the user -overly crowded basestations .For the carrier low utilization of femto-cells 2M overload of marco-cells femto B 日，+司1三13卡三分Q0 4/1Problems for Existing Approaches Scenarios of suboptimal solutions • For the user - overly crowded basestations • For the carrier - low utilization of femto-cells - overload of marco-cells femto A femto B 1.3M 2M 1!"M 1.3M 2 M 4/1