Method for the initial synchronization of a digital mobile radio system

摘要

The invention provides a method for initial synchronization of digital mobile systems, and particularly UTMS systems, wherein a mobile station having an adjustable oscillator means is synchronized to a base station comprising the following steps performed by the mobile station: acquiring a synchronization to a synchronization slot of an available base station; splitting the synchronization slot into subslots (SS1-SS4); determining the absolute phase value (D1-D4) in each sub-slot; determining the frequency offset of the oscillator means from the determined absolute phase values (D1-D4); and adjusting the frequency of the oscillator means in order to reduce the frequency offset below a predetermined threshold. <IMAGE>