Xidian University 蜂窝网 Wide Area Macro Network Indoor H Hotspot Very low-cost solutions Low-cost outdoor/indoor many deployed by user solutions deployed by operator Enterprise Malls Residential femto'small cell for Wi-Fi integrated with 3G/4G for Relay and Pico/Metro/RRH Residential/enterprise indoor and hotspot offloading small cells for hotspots 蜂窝网