Beamforming MU-MIMO OFDMA Compliance with 4096-QAM and compatibility with 1024-QAM/256-QAM/64-QAM/16-QAM/8- QAM/QPSK/BPSK e Low-density parity-check (LDPC) Frame aggregation, including A-MPDU (Tx/Rx) and A-MSDU (Tx/Rx) 802.11 dynamic frequency selection (DFS) Short guard interval (GI) in 20 MHz, 40 MHz, 80 MHz, and 160 MHz modes Wi-Fi Multimedia (WMM) for priority-based data processing and forwarding WLAN channel management and channel rate adjustment Automatic channel scanning and interference avoidance NOTE For detailed management channels, see Country Separate service set identifier (SSID) hiding configuration for each AP, supporting Chinese SSIDs Unscheduled automatic power save delivery (U-APSD) Control and provisioning of wireless access points Extended service set (ESS) in Fit AP mode Multi-user CAC 802.11k and 802.11v smart roaming 802.11r fast roaming