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    Wide area positioning system
    13.
    发明授权
    Wide area positioning system 有权
    广域定位系统

    公开(公告)号：US09591438B2

    公开(公告)日：2017-03-07

    申请号：US14138412

    申请日：2013-12-23

    Applicant: NextNav, LLC

    Inventor： Arun Raghupathy ,  Ganesh Pattabiraman ,  Subramanian S Meiyappan ,  Hari Sankar

    IPC: G01S1/08 ,  H04W4/02 ,  G01S5/10 ,  G01S19/11 ,  G01S19/24 ,  G01S19/42 ,  G01S19/46 ,  H04B7/26 ,  H04W72/00 ,  H04W72/04

    CPC classification number: H04B1/7087 ,  G01S1/08 ,  G01S5/10 ,  G01S19/11 ,  G01S19/24 ,  G01S19/42 ,  G01S19/46 ,  H04B1/709 ,  H04B7/2618 ,  H04B2201/7073 ,  H04W4/02 ,  H04W56/005 ,  H04W72/005 ,  H04W72/0446 ,  H04W72/048

    Abstract: Systems and methods are described for determining position of a receiver. The positioning system comprises a transmitter network including transmitters that broadcast positioning signals. The positioning system comprises a remote receiver that acquires and tracks the positioning signals and/or satellite signals. The satellite signals are signals of a satellite-based positioning system. A first mode of the remote receiver uses terminal-based positioning in which the remote receiver computes a position using the positioning signals and/or the satellite signals. The positioning system comprises a server coupled to the remote receiver. A second operating mode of the remote receiver comprises network-based positioning in which the server computes a position of the remote receiver from the positioning signals and/or satellite signals, where the remote receiver receives and transfers to the server the positioning signals and/or satellite signals.

    Abstract translation: 描述了用于确定接收机的位置的系统和方法。 定位系统包括发射机网络，其包括广播定位信号的发射机。 该定位系统包括一个远程接收器，用于获取和跟踪定位信号和/或卫星信号。 卫星信号是基于卫星的定位系统的信号。 远程接收机的第一模式使用基于终端的定位，其中远程接收机使用定位信号和/或卫星信号来计算位置。 定位系统包括耦合到远程接收器的服务器。 远程接收机的第二操作模式包括基于网络的定位，其中服务器根据定位信号和/或卫星信号计算远程接收器的位置，其中远程接收器接收并向服务器传送定位信号和/或 卫星信号。

    Method and device for searching cell
    14.
    发明授权
    Method and device for searching cell 有权
    搜索单元格的方法和设备

    公开(公告)号：US09432078B2

    公开(公告)日：2016-08-30

    申请号：US14654634

    申请日：2013-10-22

    Applicant: ZTE Corporation

    Inventor： Hui Lei

    IPC: H04B1/7073 ,  H04J13/00 ,  H04B1/7083 ,  H04W72/04

    CPC classification number: H04B1/70735 ,  H04B1/7083 ,  H04B2201/7073 ,  H04J13/0003 ,  H04J2013/0096 ,  H04W72/0446

    Abstract: Provided are a method and device for searching a cell, and the method comprises: timeslot synchronization is performed; a primary scrambling code group is identified and a frame synchronization is performed according to hashed values of code numbers of secondary synchronization codes (SSCs) in any several consecutive timeslots; and a primary scrambling code is obtained in the primary scrambling code group according to the primary scrambling code group, so as to complete cell searching.

    Abstract translation: 提供了一种用于搜索小区的方法和装置，并且该方法包括：执行时隙同步; 识别主扰码组，并且根据任何几个连续时隙中的次同步码（SSCs）的码号的散列值来执行帧同步; 并且在根据主扰码组的主扰码组中获得主扰码，以便完成小区搜索。

    TIME TO DIGITAL CONVERTER AND PHASE LOCKED LOOP
    15.
    发明申请
    TIME TO DIGITAL CONVERTER AND PHASE LOCKED LOOP 有权
    数字转换器和相位锁定环路

    公开(公告)号：US20160241301A1

    公开(公告)日：2016-08-18

    申请号：US15041217

    申请日：2016-02-11

    Applicant: NXP B.V.

    Inventor： NENAD PAVLOVIC ,  Vladislav DYACHENKO ,  Tarik SARIC

    IPC: H04B1/7073

    CPC classification number: H04B1/7073 ,  H03C3/0925 ,  H03C3/0933 ,  H03C3/0941 ,  H03C3/095 ,  H03C3/0958 ,  H03C3/0991 ,  H03L7/1976 ,  H04B2001/6912 ,  H04B2201/7073

    Abstract: A phase locked loop is disclosed having a frequency controlled oscillator (42), a feedback path, a time to digital converter (10) and a memory. The frequency controlled oscillator (42) comprises a first control input (135, 136) for varying the frequency of the output (106) of the frequency controlled oscillator (42) so as to track a reference frequency (101) and a second control input (139) for modulating the frequency of the output signal (106) so as to produce a chirp. The feedback path is configured to provide an input signal (107) to the time to digital converter (10), and comprises modulation cancelling module (14) operable to remove the frequency modulation resulting from the second control input (139) from the output signal (106). The memory stores second control input values that each correspond with a desired chirp frequency and which compensate for non-linearity in the response of the frequency controlled oscillator to the second control input (139). The phase locked loop is operable in a chirp mode, in which the second control input (139) is produced by determining a value for the second control input (139) corresponding with a desired chirp frequency based on the stored second control input values in the memory, and in which the phase locked loop is configured to determine the first control input (135, 136) based on the feedback path from which the modulation cancelling module (14) has removed the frequency modulation resulting from the second control input (139).

    Abstract translation: 公开了一种具有频率控制振荡器（42），反馈路径，时间到数字转换器（10）和存储器的锁相环。 频率控制振荡器（42）包括用于改变频率控制振荡器（42）的输出（106）的频率的第一控制输入（135,136），以便跟踪参考频率（101）和第二控制输入 （139），用于调制输出信号（106）的频率，以便产生啁啾声。 反馈路径被配置为向数字转换器（10）提供输入信号（107），并且包括调制解除模块（14），其可操作以从输出信号中去除由第二控制输入（139）产生的频率调制 （106）。 存储器存储每个对应于期望啁啾频率并且补偿频率控制振荡器对第二控制输入（139）的响应中的非线性的第二控制输入值。 锁相环可以在啁啾模式下操作，其中通过基于所存储的第二控制输入值确定对应于期望啁啾频率的第二控制输入（139）的值来产生第二控制输入（139） 存储器，并且其中所述锁相环被配置为基于所述调制解除模块（14）从其中移除了由所述第二控制输入（139）产生的频率调制的反馈路径来确定所述第一控制输入（135,136） 。

    METHOD AND RECEIVER FOR RECEIVING A BINARY OFFSET CARRIER COMPOSITE SIGNAL
    16.
    发明申请
    METHOD AND RECEIVER FOR RECEIVING A BINARY OFFSET CARRIER COMPOSITE SIGNAL 有权
    用于接收二进制偏移载波复合信号的方法和接收机

    公开(公告)号：US20150372714A1

    公开(公告)日：2015-12-24

    申请号：US14837064

    申请日：2015-08-27

    Applicant: Deere & Company

    Inventor： Wei Yu ,  Richard G. Keegan

    IPC: H04B1/709 ,  H04B1/7075 ,  H04B1/7087

    CPC classification number: H04B1/709 ,  G01S19/24 ,  G01S19/30 ,  H04B1/7075 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/7087 ,  H04B2201/70715 ,  H04B2201/70716 ,  H04B2201/70728 ,  H04B2201/7073 ,  H04L27/2663

    Abstract: A data processor selects a set of BOC correlations in accordance with a BOC correlation function for the sampling period if the primary amplitude exceeds or equals the secondary amplitude for the sampling period. The data processor selects a set of QBOC correlations in accordance with a QBOC correlation function for the sampling period if the secondary amplitude exceeds the primary amplitude for the sampling period. The data processor uses either the BOC correlation function or the QBOC correlation function, whichever with greater amplitude, at each sampling period to provide an aggregate correlation function that supports unambiguous code acquisition of the received signal.

    Abstract translation: 如果主振幅超过或等于采样周期的次级振幅，则数据处理器根据采样周期的BOC相关函数来选择一组BOC相关。 如果次级振幅超过采样周期的主振幅，则数据处理器根据采样周期的QBOC相关函数来选择一组QBOC相关。 在每个采样周期，数据处理器使用BOC相关函数或QBOC相关函数（以较大振幅为准）来提供支持接收信号的明确代码获取的聚合相关函数。

    Method and receiver for receiving a composite signal
    17.
    发明授权
    Method and receiver for receiving a composite signal 有权
    用于接收复合信号的方法和接收器

    公开(公告)号：US09197478B2

    公开(公告)日：2015-11-24

    申请号：US14310775

    申请日：2014-06-20

    Applicant: DEERE & COMPANY

    Inventor： Wei Yu ,  Richard G Keegan

    IPC: H03D1/00 ,  H04L27/26

    CPC classification number: H04B1/709 ,  G01S19/24 ,  G01S19/30 ,  H04B1/7075 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/7087 ,  H04B2201/70715 ,  H04B2201/70716 ,  H04B2201/70728 ,  H04B2201/7073 ,  H04L27/2663

    Abstract: A data processor selects a set of BOC correlations in accordance with a BOC correlation function for the sampling period if the primary amplitude exceeds or equals the secondary amplitude for the sampling period. An electronic data processor determines whether the receiver is operating in a steady-state mode by evaluating the detected primary amplitude. The data processor selects and/or processes a set of BOC correlations for the sampling period to track a carrier of the received composite signal if the receiver is operating in the steady-state mode. In one embodiment, the data processor forms a first code error using the selected BOC correlations with a first chip spacing to drive the code tracking.

    Abstract translation: 如果主振幅超过或等于采样周期的次级振幅，则数据处理器根据采样周期的BOC相关函数来选择一组BOC相关。 电子数据处理器通过评估检测到的主振幅来确定接收器是否处于稳态模式。 数据处理器在采样周期中选择和/或处理一组BOC相关，以便在接收机工作在稳态模式时跟踪所接收的复合信号的载波。 在一个实施例中，数据处理器使用所选择的BOC相关性与第一码片间隔形成第一码错误以驱动码跟踪。

    Wide Area Positioning System
    20.
    发明申请
    Wide Area Positioning System 有权
    广域定位系统

    公开(公告)号：US20130063301A1

    公开(公告)日：2013-03-14

    申请号：US13412508

    申请日：2012-03-05

    Applicant: Ganesh PATTABIRAMAN ,  Subramanian MEIYAPPAN ,  Arun RAGHUPATHY ,  Hari SANKAR

    Inventor： Ganesh PATTABIRAMAN ,  Subramanian MEIYAPPAN ,  Arun RAGHUPATHY ,  Hari SANKAR

    IPC: G01S19/46

    CPC classification number: H04B1/7087 ,  G01S1/08 ,  G01S5/10 ,  G01S19/11 ,  G01S19/24 ,  G01S19/42 ,  G01S19/46 ,  H04B1/709 ,  H04B7/2618 ,  H04B2201/7073 ,  H04W4/02 ,  H04W56/005 ,  H04W72/005 ,  H04W72/0446 ,  H04W72/048

    Abstract: Systems and methods are described for determining position of a receiver. The positioning system comprises a transmitter network including transmitters that broadcast positioning signals. The positioning system comprises a remote receiver that acquires and tracks the positioning signals and/or satellite signals. The satellite signals are signals of a satellite-based positioning system. A first mode of the remote receiver uses terminal-based positioning in which the remote receiver computes a position using the positioning signals and/or the satellite signals. The positioning system comprises a server coupled to the remote receiver. A second operating mode of the remote receiver comprises network-based positioning in which the server computes a position of the remote receiver from the positioning signals and/or satellite signals, where the remote receiver receives and transfers to the server the positioning signals and/or satellite signals.

    Abstract translation: 描述了用于确定接收机的位置的系统和方法。 定位系统包括发射机网络，其包括广播定位信号的发射机。 该定位系统包括一个远程接收器，用于获取和跟踪定位信号和/或卫星信号。 卫星信号是基于卫星的定位系统的信号。 远程接收机的第一模式使用基于终端的定位，其中远程接收机使用定位信号和/或卫星信号来计算位置。 定位系统包括耦合到远程接收器的服务器。 远程接收机的第二操作模式包括基于网络的定位，其中服务器根据定位信号和/或卫星信号计算远程接收器的位置，其中远程接收器接收并向服务器传送定位信号和/或 卫星信号。

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