公开(公告)号：EP1817605B1

公开(公告)日：2012-01-18

申请号：EP05852691.4

申请日：2005-12-01

Applicant: QUALCOMM INCORPORATED

Inventor： SIMIC, Emilija M. ,  PATRICK, Christopher ,  ROWITCH, Douglas N.

IPC: G01S19/21 ,  H04B1/7097

CPC classification number: G01S19/34 ,  G01S19/03 ,  G01S19/21 ,  G01S19/22 ,  G01S19/29 ,  H04B1/7077 ,  H04K3/228

Abstract: A method according to an embodiment obtains a list of peaks for each of a number of frequency hypotheses. Each peak has an energy result and corresponds to a code phase hypothesis. Embodiments include methods and apparatus that may be used in identifying a location of a signal (such as a GPS signal) in a two-dimensional search space. Location information may be further applied to operations such as signal acquisition, signal tracking, position location of a receiver, and timing operations such as the synchronization of one or more other processes.