公开(公告)号：JP2001318136A

公开(公告)日：2001-11-16

申请号：JP2001095149

申请日：2001-03-29

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CHEN BYRON H ,  DA REN ,  TEKIN IBRAHIM

IPC: G01S5/00 ,  G01S1/02 ,  G01S5/14 ,  G01S19/46 ,  H04Q7/34

Abstract: PROBLEM TO BE SOLVED: To solve the problem related to positioning of the terminal of a wireless mobile communication device and the like for distance measuring such as satellite distance measuring and/or wireless network distance measuring. SOLUTION: At least three distance measurement values are applied with weighted ridge regression(WRR) process to determine the position of the terminal. For example, in an integrated satellite navigation system/wireless network, at least three distance measurement values are applied with the WRR process to determine the position of a mobile communication device. Here, at least one distance measurement value is that of satellite system (for example, GPS pseudo distance measurement value) while at least one is that of wireless network system (for example, round propagation delay or pilot phase offset measurement value). The WRR process raises precision in determining position of a mobile communication device with a conventional minimum average square technology.