公开(公告)号：AT557290T

公开(公告)日：2012-05-15

申请号：AT99946749

申请日：1999-09-02

Applicant: QUALCOMM INC

Inventor： ZOU QIUZHEN ,  SIH GILBERT ,  EDMONSTON BRIAN

IPC: G01S5/00 ,  G01S1/00 ,  G01S19/09 ,  G01S19/23 ,  G01S19/24 ,  G01S19/25 ,  G01S19/29 ,  G01S19/30 ,  G01S19/46 ,  H04Q7/34 ,  H04Q7/38

Abstract: The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. In one embodiment the invention comprises a method in a subscriber unit (10) for performing position location in a CDMA wireless communications system having a base station (12), the method comprising: receiving a position location request containing aiding information from the base station (12) over a first receive frequency; in response to the position location request, tuning a receiver (52, 54, 102, 104) of the subscriber unit (10) away from the first receive frequency to a position location frequency in order to receive position location information; and receiving information over the position location frequency and using the received information to perform a position location procedure, the method being characterized by: including data transition boundary information in the aiding information.