Radio at the outset of the new millennium

After a survey of the development of wireless communications in the past, the radio services which are expected to mark the outset of the new millennium, are discussed. The dominant characteristic of these telecommunication services is the mobility of the terminals. This enabled their personalisation which is to become a main feature of the coming telecommunications era. Digital cellular, satellite system for personal communications, personal access system and the use of millimeter waves are presented in some detail.