Method for determining a bearing for a mobile communications terminal in a non-time synchronous mobile radiotelephone system uses multiple base stations each to circulate signals periodically as data on locations.

摘要

With the help of distance ranges (k,k+c.=Dt2,k+c=D3) between a communications terminal (MS) and three base stations (BTS1-BTS3) and their locations (Z1-Z3), a location/bearing (Zm) for the communications terminal can be determined on the communications terminal with the help of an implemented algorithm. Non-time synchronous bursts and their respective bearing are periodically broadcast together from individual base stations that receive the bursts.