Điện thoại di động mạng lưới Radio P12

Wireless Broadband Systems and Wireless ATM∗ Broadband systems are generally those systems that provide a high transmission rate besides other features like integration of services. An exact definition of this term can be found in ITU Rec. I.113, which characterizes broadband services as having a higher transmission rate than a primary multiplex connection in ISDN (2048 kbit/s). A brief overview of the current state of development of wireless broadband systems, particularly in Europe, including the fundamentals of ATM in BISDN, is given below. This is followed by important aspects of development of wireless ATM for movable and mobile stations. ...