公开(公告)号：US20020031192A1

公开(公告)日：2002-03-14

申请号：US09956325

申请日：2001-09-18

Applicant: Qualcomm, Inc.

Inventor： Qiuzhen Zou ,  Gilbert C. Sih ,  Inyup Kang

IPC: H04L027/14 ,  H04L027/22

CPC classification number: G01S5/0036 ,  G01S19/235 ,  G01S19/254 ,  G01S19/258 ,  G01S19/30

Abstract: The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. One embodiment of the invention comprises a method for performing position location on a subscriber unit in a terrestrial wireless telephone system using a set of satellites each transmitting a signal, the terrestrial wireless telephone system having base stations, including the steps of transmitting an aiding message from the base station to the subscriber unit, said aiding message containing information regarding a data boundary for each signal from the set of satellites, applying correlation codes to each signal yielding corresponding correlation data and accumulating said correlation data over an first interval preceding a corresponding data boundary yielding a first accumulation result, and a second interval following said corresponding data boundary yielding a second accumulation result.

Abstract translation: 本发明是一种用于在无线通信系统中执行位置定位的新颖且改进的方法和装置。 本发明的一个实施例包括一种用于在陆地无线电话系统中的用户单元上执行位置定位的方法，该方法使用一组发射信号的卫星，具有基站的地面无线电话系统包括以下步骤：从 基站到用户单元，所述辅助消息包含关于来自卫星组的每个信号的数据边界的信息，将相关代码应用于产生相应相关数据的每个信号，并在对应的数据边界之前的第一间隔上累加所述相关数据 产生第一累积结果，并且在所述对应数据边界之后的第二间隔产生第二累积结果。