公开(公告)号：WO1998000982A2

公开(公告)日：1998-01-08

申请号：PCT/US1997005340

申请日：1997-03-27

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  TONG, Leon ,  LING, Fuyun

IPC: H04Q00/00

CPC classification number: H04W64/00 ,  G01S5/14

Abstract: The method includes receiving (404) by a first base station (212) a signal (215) transmitted from the mobile station (216); demodulating (406) the signal by the first base station (212) to form a demodulated signal; remodulating (408) at least a portion of the demodulated signal to form a reference signal; receiving (412) by the first base station (212) and a second base station (210, 214) a retransmitted signal (217); comparing (414, 416), by the first base station (212), the retransmitted signal (217) with the reference signal to determine a first delay; comparing (414, 416), by the second base station (210, 214), the retransmitted second signal (217) with the reference signal to determine a second delay; and based on the first and second delays, determining (420) a location of the mobile station (216).

Abstract translation: 该方法包括由第一基站（212）接收（404）从移动站（216）发送的信号（215）。 由第一基站（212）解调（406）信号以形成解调信号; 重新调制（408）所述解调信号的至少一部分以形成参考信号; 由第一基站（212）和第二基站（210,214）接收（412）重发信号（217）; 通过所述第一基站（212）将所述重发信号（217）与所述参考信号进行比较（414,416）以确定第一延迟; 通过所述第二基站（210,214）将重发的第二信号（217）与参考信号进行比较（414,416）以确定第二延迟; 并且基于第一和第二延迟，确定（420）移动台（216）的位置。

公开(公告)号：EP0913066A2

公开(公告)日：1999-05-06

申请号：EP97920010.0

申请日：1997-03-27

Applicant: MOTOROLA, INC.

Inventor： TONG, Leon ,  LING, Fuyun

IPC: G01S5 ,  G01S19 ,  H04W64

CPC classification number: H04W64/00 ,  G01S5/14

Abstract: The method includes receiving (404) by a first base station (212) a signal (215) transmitted from the mobile station (216); demodulating (406) the signal by the first base station (212) to form a demodulated signal; remodulating (408) at least a portion of the demodulated signal to form a reference signal; receiving (412) by the first base station (212) and a second base station (210, 214) a retransmitted signal (217); comparing (414, 416), by the first base station (212), the retransmitted signal (217) with the reference signal to determine a first delay; comparing (414, 416), by the second base station (210, 214), the retransmitted second signal (217) with the reference signal to determine a second delay; and based on the first and second delays, determining (420) a location of the mobile station (216).