The MU-MIMO technology was developed by the Qualcomm company and aims to speed up and enhance the wireless WiFi connectivity.
WLAN (Wireless Local Area Network, sometimes also Wireless LAN) marks a local area network typically found in households, offices or schools. The majority of modern WLANs are based on IEEE 802.11, which are marked under WiFi.
An access point (AP) is a device or system that allows wireless communication between each client equipped with a wireless card / adapter and the AP. This is a key component for WLAN networks.