公开(公告)号：US20180299561A1

公开(公告)日：2018-10-18

申请号：US15866665

申请日：2018-01-10

Applicant: Mediatek Inc.

Inventor： Pei-Hung Jau ,  Hung-Jen Chen

IPC: G01S19/25 ,  H04B1/7073 ,  G01S19/39

Abstract: A UE may employ two independent oscillators to provide timing to GNSS components and communication components, respectively. To perform a time measurement of the GNSS signals and a time measurement of the communication signals at the exact same time point, in an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus a UE. The UE synchronizes, at a first time point, first system time of a wireless communication component of the UE and second system time of a GNSS component of the UE. The UE further measures a GNSS signal at a second time point subsequent to the first time point to obtain a first GNSS signal measurement. The UE estimates a second GNSS signal measurement of the first time point based on the first GNSS signal measurement and a first time period between the first time point and the second time point.

公开(公告)号：US10024974B1

公开(公告)日：2018-07-17

申请号：US14863433

申请日：2015-09-23

Applicant: MEDIATEK INC.

Inventor： Pei-Hung Jau

IPC: G01S19/22 ,  G01S19/45

Abstract: A method for determining a location of a target includes: obtaining a plurality of guess distance values of a plurality of satellites, respectively; utilizing satellite signals received from the plurality of satellites to estimate a plurality of pseudo range values of the plurality of satellites, respectively; comparing the guess range values with the pseudo range values to generate a residual vector; and utilizing a processing unit for applying a rank-based approach based on the residual vector to generate a calculation result. The location of the target is derived from the calculation result.

公开(公告)号：US10830898B2

公开(公告)日：2020-11-10

申请号：US16010175

申请日：2018-06-15

Applicant: MediaTek Inc.

Inventor： Pei-Hung Jau

IPC: G01S19/22 ,  G01S19/45 ,  G01S19/42

Abstract: A method for determining a location of a target includes: obtaining a plurality of guess distance values of a plurality of satellites, respectively; utilizing satellite signals received from the plurality of satellites to estimate a plurality of pseudo range values of the plurality of satellites, respectively; comparing the guess range values with the pseudo range values to generate a residual vector; and utilizing a processing unit for applying a rank-based approach based on the residual vector to generate a calculation result. The location of the target is derived from the calculation result.

公开(公告)号：US10520608B2

公开(公告)日：2019-12-31

申请号：US15024851

申请日：2015-09-04

Applicant: MEDIATEK INC.

Inventor： Chin-Tang Weng ,  Chih-Wei Chen ,  Pei-Hung Jau ,  Cheng-Ming Hu ,  Bo-Wen Tung ,  Zong-Hua You

IPC: G01S19/34 ,  G01S19/24 ,  G01S19/42

Abstract: Methods and apparatus are provided for power saving in GNSS receivers. In one novel aspect, the ME tracking period, the ME interval, and the PE working period, the PE interval are dynamically determined based on the GNSS signal conditions and/or the user requirements. In one embodiment, acceptable provision estimated position fix are used. Estimated position result is generated at each GPS position interval if there is no position result generated by the PE working period. In another embodiment, the ME-tracking and/or the PE-working are adjusted to minimum operation needs by using ME-partial (MEP) and/or PE-partial (PEP). PEP is arranged aligned with MEP. In yet another embodiment, the PE working period is delayed such that the PE working period is aligned with the ME tracking period. The position result is generated based on a last epoch's measurement obtained in the previous ME tracking period.

公开(公告)号：US20160238712A1

公开(公告)日：2016-08-18

申请号：US15024851

申请日：2015-09-04

Applicant: MEDIATEK INC.

Inventor： Chin-Tang Weng ,  Chih-Wei Chen ,  Pei-Hung Jau ,  Cheng-Ming Hu ,  Bo-Wen Tung ,  Zong-Hua You

IPC: G01S19/34

Abstract: Methods and apparatus are provided for power saving in GNSS receivers. In one novel aspect, the ME tracking period, the ME interval, and the PE working period, the PE interval are dynamically determined based on the GNSS signal conditions and/or the user requirements. In one embodiment, acceptable provision estimated position fix are used. Estimated position result is generated at each GPS position interval if there is no position result generated by the PE working period. In another embodiment, the ME-tracking and/or the PE-working are adjusted to minimum operation needs by using ME-partial (MEP) and/or PE-partial (PEP). PEP is arranged aligned with MEP. In yet another embodiment, the PE working period is delayed such that the PE working period is aligned with the ME tracking period. The position result is generated based on a last epoch's measurement obtained in the previous ME tracking period.

Abstract translation: 提供了用于GNSS接收机节能的方法和装置。 在一个新颖的方面，ME跟踪周期，ME间隔和PE工作周期，PE间隔根据GNSS信号条件和/或用户要求动态确定。 在一个实施例中，使用可接受的提供估计位置定位。 如果PE工作期间没有产生位置结果，则在每个GPS位置间隔产生估计位置结果。 在另一个实施例中，通过使用ME部分（MEP）和/或PE部分（PEP）将ME跟踪和/或PE工作调整到最小操作需要。 PEP与MEP对齐。 在另一个实施例中，PE工作周期被延迟，使得PE工作周期与ME跟踪周期一致。 位置结果基于在之前的ME跟踪周期中获得的最后时期的测量而产生。