公开(公告)号：US08755472B2

公开(公告)日：2014-06-17

申请号：US13937757

申请日：2013-07-09

Applicant: QUALCOMM Incorporated

Inventor： Qinfang Sun ,  Wen-Chang Yeh ,  Ho-Chung Chen

IPC: H04L27/06

CPC classification number: H04L7/0016 ,  G01S19/24 ,  G01S19/30 ,  G01S19/36 ,  G01S19/37

Abstract: A high sensitivity GPS receiver includes an acquisition engine and a tracking engine. The acquisition engine processes GPS satellite data at data rate that is substantially equal to twice the coarse acquisition (CA) code chip rate. This data rate advantageously enables the acquisition engine to process GPS satellite data with relatively less hardware area than traditional GPS acquisition approaches. In one embodiment, the high efficiency acquisition engine may be over-clocked, thereby allowing different phases of a CA code to be correlated quickly. The tracking engine can advantageously process GPS satellite data at a data rate that does not have an integer relationship to the CA code chip rate.

Abstract translation: 高灵敏度GPS接收机包括采集引擎和跟踪引擎。 采集引擎以基本上等于粗略采集（CA）码片速率的两倍的数据速率处理GPS卫星数据。 该数据速率有利地使得采集引擎能够以比传统的GPS采集方法更少的硬件面积来处理GPS卫星数据。 在一个实施例中，高效率采集引擎可以被超频，从而允许CA代码的不同阶段快速相关。 跟踪引擎可以以不与CA码片速率的整数关系的数据速率有利地处理GPS卫星数据。

公开(公告)号：US20180092048A1

公开(公告)日：2018-03-29

申请号：US15275305

申请日：2016-09-23

Applicant: QUALCOMM Incorporated

Inventor： Hao-Jen Cheng ,  Kapil Rai ,  Chih-Yuan Chu ,  Wen-Chang Yeh

IPC: H04W52/34 ,  H04B17/318 ,  H04W24/02

CPC classification number: H04W24/02 ,  H04B17/13 ,  H04B17/21 ,  H04B17/24 ,  H04W52/52

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may transmit a first calibration packet at a first power level. The wireless device may determine a power measurement corresponding to the first calibration packet based at least in part on feedback associated with a transmit power output of the first calibration packet. The wireless device may compare the power measurement corresponding to the first calibration packet to a target power level associated with the first power level. Additionally, the wireless device may adjust one or more gain parameters associated with the first power level based at least in part on the comparing.

公开(公告)号：US20130294549A1

公开(公告)日：2013-11-07

申请号：US13937757

申请日：2013-07-09

Applicant: QUALCOMM Incorporated

Inventor： Qinfang Sun ,  Wen-Chang Yeh ,  Ho-Chung Chen

IPC: H04L7/00

CPC classification number: H04L7/0016 ,  G01S19/24 ,  G01S19/30 ,  G01S19/36 ,  G01S19/37

Abstract: A high sensitivity GPS receiver includes an acquisition engine and a tracking engine. The acquisition engine processes GPS satellite data at data rate that is substantially equal to twice the coarse acquisition (CA) code chip rate. This data rate advantageously enables the acquisition engine to process GPS satellite data with relatively less hardware area than traditional GPS acquisition approaches. In one embodiment, the high efficiency acquisition engine may be over-clocked, thereby allowing different phases of a CA code to be correlated quickly. The tracking engine can advantageously process GPS satellite data at a data rate that does not have an integer relationship to the CA code chip rate.

Abstract translation: 高灵敏度GPS接收机包括采集引擎和跟踪引擎。 采集引擎以基本上等于粗略采集（CA）码片速率的两倍的数据速率处理GPS卫星数据。 该数据速率有利地使得采集引擎能够以比传统的GPS采集方法更少的硬件面积来处理GPS卫星数据。 在一个实施例中，高效率采集引擎可以被超频，从而允许CA代码的不同阶段快速相关。 跟踪引擎可以以不与CA码片速率的整数关系的数据速率有利地处理GPS卫星数据。

公开(公告)号：US20140028499A1

公开(公告)日：2014-01-30

申请号：US13740085

申请日：2013-01-11

Applicant: Qualcomm Incorporated

Inventor： Wen-Chang Yeh ,  Hao Zhou ,  Qinfang Sun

IPC: G01S19/33

CPC classification number: G01S19/33 ,  G01S19/235 ,  G01S19/36 ,  G01S19/37

Abstract: A receiver for receiving both GPS signals and GLONASS signals is provided. This receiver includes an analog front end (AFE), a GPS digital front end (DFE) and a GLONASS DFE for receiving an output of the AFE, and a dual mode interface (DMI) for receiving outputs of the GPS and GLONASS DFEs. Search engines are provided for receiving outputs of the DMI. Notably, certain front-end components of the AFE are configured to process both the GPS signals and the GLONASS signals.

Abstract translation: 提供了用于接收GPS信号和GLONASS信号的接收器。 该接收机包括用于接收AFE的输出的模拟前端（AFE），GPS数字前端（DFE）和GLONASS DFE，以及用于接收GPS和GLONASS DFE的输出的双模式接口（DMI）。 提供搜索引擎用于接收DMI的输出。 值得注意的是，AFE的某些前端组件配置为处理GPS信号和GLONASS信号。