This paper reviews 802.16 2001's MAC layer QoS metric. It explains the importance of QoS and its parameter set; defines types of services supported by this standard; explores the main entity of the MAC layer used for transportation that is service flow and how the QoS metric is associated with it, as well as the relationship of service class and service flow. It further explains the authorization model and two phase activation. In the end it explains dynamic service flow and dynamic service messages in detail

The mobile phone has caused us to plan less and communicate more. The Internet causes us to categorize less and search more - and media's increasing Internet nervousness is driven not just by fear of diminishing revenues but from the fear of a loss of importance of categorization. When everybody can find everything and networked computers determine what is relevant, media companies lose their ability to create agendas. To maintain their influence, they will need to let the Internet shape their main products, not desperately try to keep the world as it is.