公开(公告)号：US09209893B2

公开(公告)日：2015-12-08

申请号：US13802613

申请日：2013-03-13

Applicant: QUALCOMM Incorporated

Inventor： Gaspar Lee ,  Hao-Jen Cheng

IPC: H04J3/06 ,  G01S19/23 ,  H04B7/212 ,  G01S19/24 ,  G01S19/33 ,  G01S19/27

CPC classification number: H04B7/2125 ,  G01S19/243 ,  G01S19/27 ,  G01S19/33

Abstract: A method of providing frame synchronization for GPS signals can include performing coherent bit extraction on the GPS bits and then performing coherent frame boundary detection based on the bits of the coherent bit extraction. Concurrently, differential bit extraction on the GPS bits and differential frame boundary detection based on bits of the differential bit extraction can be performed. Whichever of the coherent frame boundary detection and the differential frame boundary detection first finds a frame boundary, then that frame boundary is used for the frame synchronization. A method of providing string synchronization for GLONASS signals includes performing coherent and differential bit extraction on the GLONASS bits.

Abstract translation: 提供用于GPS信号的帧同步的方法可以包括对GPS位执行相干比特提取，然后基于相干比特提取的比特执行相干帧边界检测。 同时，可以执行基于差分比特提取的比特的GPS比特差分比特提取和差分帧边界检测。 无论哪个相干帧边界检测和差分帧边界检测首先找到帧边界，则该帧边界用于帧同步。 为GLONASS信号提供串同步的方法包括在GLONASS位上执行相干和差分位提取。

公开(公告)号：US20130195101A1

公开(公告)日：2013-08-01

申请号：US13802613

申请日：2013-03-13

Applicant: QUALCOMM Incorporated

Inventor： Gaspar Lee ,  Hao-Jen Cheng

IPC: H04B7/212

CPC classification number: H04B7/2125 ,  G01S19/243 ,  G01S19/27 ,  G01S19/33

Abstract: A method of providing frame synchronization for GPS signals can include performing coherent bit extraction on the GPS bits and then performing coherent frame boundary detection based on the bits of the coherent bit extraction. Concurrently, differential bit extraction on the GPS bits and differential frame boundary detection based on bits of the differential bit extraction can be performed. Whichever of the coherent frame boundary detection and the differential frame boundary detection first finds a frame boundary, then that frame boundary is used for the frame synchronization. A method of providing string synchronization for GLONASS signals includes performing coherent and differential bit extraction on the GLONASS bits.

Abstract translation: 提供用于GPS信号的帧同步的方法可以包括对GPS位执行相干比特提取，然后基于相干比特提取的比特执行相干帧边界检测。 同时，可以执行基于差分比特提取的比特的GPS比特差分比特提取和差分帧边界检测。 无论哪个相干帧边界检测和差分帧边界检测首先找到帧边界，则该帧边界被用于帧同步。 为GLONASS信号提供串同步的方法包括在GLONASS位上执行相干和差分位提取。