HSPA, short for High-Speed Packet Access, is a mobile telecommunication protocol that enhances data transmission speeds on 3G networks. It encompasses two main technologies, HSDPA (High-Speed Downlink Packet Access) for faster downloading and HSUPA (High-Speed Uplink Packet Access) for improved uploading speeds. HSPA has been widely adopted by mobile network operators globally to provide users with improved data connectivity and enhanced mobile broadband experiences.