公开(公告)号：US20020175860A1

公开(公告)日：2002-11-28

申请号：US10200930

申请日：2002-07-23

Applicant: Nokia Networks Oy

Inventor： Ville Ruutu ,  Timo M. Rantalainen ,  Marko Aulis Alanen ,  Gudni Gunnarsson ,  Olli Heikki Antero Hyvarinen

IPC: H04Q007/20 ,  G01S001/24

CPC classification number: H04W64/00 ,  G01S1/045 ,  G01S5/10

Abstract: The invention relates to a method of measuring a time difference and a radio system employing the method, the radio system comprising base stations, terminals, time difference units and a time difference centre. A real time difference RTD of the base station is formed on the basis of measurements carried out by the time difference units by means of an observed time difference OTD and a geometrical time difference GTD in the time difference centre as a function of time, in which case the moment of occurrence of the real time difference RTD measured is connected to the real time difference RTD of the base station.

Abstract translation: 本发明涉及一种测量时差的方法和采用该方法的无线电系统，该无线电系统包括基站，终端，时差单元和时差中心。 基于通过时差单位通过观测时间差OTD和时差中心的几何时间差GTD作为时间的函数进行的测量形成基站的实时差RTD，其中 情况下发生的时间差RTD测量的连接到基站的实时差RTD。