What is hyper lan?

(HIgh PERformance Radio LAN) A wireless LAN protocol developed by the European Telecommunications Standards Institute (ETSI) that is similar in function to Wi-Fi in the U.S. HIPERLAN/1 and HIPERLAN/2 offer 20 and 54 Mbps data rates respectively in the 5 GHz band. Unlike 802.11a, HIPERLAN provides quality of service (QoS), which lets critical traffic be prioritized.