DECT technology for radio in the local loop

There is increasing interest in radio in the local loop (RLL) applications due to technology advancements and the liberalisation of the telecommunications markets. The paper describes the properties of DECT RLL applications. DECT offers toll quality digital speech, voice band transparency and ISDN services. All user information is encrypted. The DECT continuous dynamic channel selection procedures provide efficient utilisation of the spectrum and avoid the need for traditional frequency planning. The maximum range for a line of sight fixed RLL subscriber unit is much larger than for a non line of sight mobile RLL pocket unit. The DECT repeater concept makes it possible to combine the longer range of fixed RLL with mobility, which gives added value to a DECT RLL solution. The rapid advent of other private and public DECT services provide a platform both for service integration and for economy of scale. Estimates on traffic capacity and ranges has been supported by simulations and field trails