APSD in telecom stands for Automatic Power Save Delivery. It is a mechanism designed to improve the power efficiency of Wi-Fi networks by allowing devices to enter a low-power sleep mode when not actively transmitting or receiving data. In the UK market, APSD is an important feature for conserving battery life on mobile devices and reducing overall power consumption in wireless networks. By enabling APSD, network operators and device manufacturers can help extend battery life, reduce environmental impact, and enhance the overall user experience of wireless devices in the UK.