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    Synchronization device and synchronization method thereof
    1.
    发明授权
    Synchronization device and synchronization method thereof 有权
    同步装置及其同步方法

    公开(公告)号：US09148196B2

    公开(公告)日：2015-09-29

    申请号：US14090620

    申请日：2013-11-26

    Applicant: Institute For Information Industry

    Inventor： Jan-Shin Ho ,  Wei-Shing Wang

    IPC: H04B1/00 ,  H04B1/708

    CPC classification number: H04B1/708

    Abstract: A synchronization device and a synchronization method for use in a receiver are provided. The receiver receives a signal from a transmitter. The synchronization device generates a plurality of first pseudo noise codes in sequence according to a first code phase sequence and generates a plurality of second pseudo noise codes in sequence according to a second code phase sequence which is the reverse of the first code phase sequence, simultaneously. Every time a first pseudo noise code and a second pseudo noise code are generated, the synchronization device makes a correlation calculation for the first pseudo noise code, the second pseudo noise code and the signal. The synchronization device further determines a code phase according to the correlation calculations, and synchronizes with the signal according to the code phase. The synchronization method is applied to the synchronization device to implement the operations.

    Abstract translation: 提供了一种在接收机中使用的同步装置和同步方法。 接收机接收来自发射机的信号。 同步装置根据第一码相序顺序生成多个第一伪噪声码，并根据与第一码相序相反的第二码相序顺序产生多个第二伪噪声码，同时 。 每当产生第一伪噪声码和第二伪噪声码时，同步装置对第一伪噪声码，第二伪噪声码和信号进行相关计算。 同步装置还根据相关计算确定码相位，并根据码相同步信号。 该同步方法应用于同步设备以实现该操作。

    DETECTION OF SCRAMBLING CODE CONFUSION
    2.
    发明申请
    DETECTION OF SCRAMBLING CODE CONFUSION 有权
    检测掩码代码

    公开(公告)号：US20150163685A1

    公开(公告)日：2015-06-11

    申请号：US14627031

    申请日：2015-02-20

    Applicant: AT&T Mobility II LLC

    Inventor： Jeremy Fix ,  Sheldon Kent Meredith ,  Rick Tipton

    IPC: H04W24/04

    CPC classification number: H04B1/7103 ,  H04B1/707 ,  H04B1/70735 ,  H04B1/708 ,  H04W24/04 ,  H04W72/0466

    Abstract: Detection of a confusion caused by scrambling code reuse is provided herein. Timing measurements, as observed by a mobile device, and an identification of primary scrambling codes associated with the timing measurements are captured. The timing measurements are identified by the primary scrambling codes for the particular radio measured. The mobile device also reports its location information. Radios for which timing measurements have been received are paired. Based on the paired radios and a history of observed time difference reference values for radio pairs, comparisons are made between paired radios having at least one common radio. Radios, exhibiting a set of values that is near an expected range, are removed from the analysis. Radios, exhibiting two sets of values that are distinct, are isolated in order to identify the radio that is causing the scrambling code confusion.

    Abstract translation: 本文提供了由扰码重用引起的混淆的检测。 捕获了由移动设备观察到的定时测量以及与定时测量相关联的主扰码的识别。 定时测量由所测量的特定无线电的主扰码识别。 移动设备还报告其位置信息。 收到定时测量的收音机配对。 基于配对的无线电和无线电对的观测时间差参考值的历史，在具有至少一个公共无线电的配对无线电之间进行比较。 展示一组接近预期范围的值的无线电从分析中删除。 显示两组不同的值的无线电是隔离的，以便识别导致扰码的混乱的无线电。

    Code division multiple access mobile communication system
    3.
    发明授权
    Code division multiple access mobile communication system 有权
    码分多址移动通信系统

    公开(公告)号：US08837436B2

    公开(公告)日：2014-09-16

    申请号：US13681458

    申请日：2012-11-20

    Applicant: Fipa Frohwitter Intellectual Property AG

    Inventor： May Suzuki ,  Nobukazu Doi ,  Takashi Yano

    IPC: H04W72/04 ,  H04B7/26 ,  H04B1/7075 ,  H04B1/708

    CPC classification number: H04B7/2668 ,  H04B1/7075 ,  H04B1/708 ,  H04B7/2628 ,  H04W72/042

    Abstract: In a mobile communication system using a code division multiple access (CDMA) method, spreading code detection and frame/slot timing synchronization (cell search) is conducted by using a long code masked symbol. The spreading factor of the long code masked symbol is set to a value lower than spreading factors of other ordinary symbols. As a result, it becomes possible to reduce the circuit scale and power dissipation of the mobile terminal and raise the speed of cell search.

    Abstract translation: 在使用码分多址（CDMA）方法的移动通信系统中，通过使用长码屏蔽符号来进行扩展码检测和帧/时隙定时同步（小区搜索）。 长码屏蔽符号的扩展因子被设置为低于其他普通符号的扩展因子的值。 结果，可以降低移动终端的电路规模和功耗，提高小区搜索的速度。

    Multiplexed CDMA and GPS searching
    5.
    发明授权
    Multiplexed CDMA and GPS searching 失效

    公开(公告)号：US08582623B2

    公开(公告)日：2013-11-12

    申请号：US12776071

    申请日：2010-05-07

    Applicant: Wang Paul Poon ,  Qiuzhen Zou

    Inventor： Wang Paul Poon ,  Qiuzhen Zou

    IPC: H04B1/707

    CPC classification number: H04B1/708 ,  G01S19/30 ,  G01S19/34 ,  G01S19/37 ,  H04B1/70754 ,  H04B1/70758 ,  H04B2201/70711

    Abstract: Searcher hardware is multiplexed to perform simultaneous searches in either an IS-95 CDMA mode or a GPS mode. In the IS-95 mode, the search hardware is time-multiplexed into a number of searcher time slices, each of which can generate a PN sequence to despread a data sequence. In the GPS mode, the search hardware is configured as a number of distinct GPS channels, each of which can generate a Gold code sequence for tracking a GPS signal from a particular GPS satellite. This configuration allows the searcher to perform multiple GPS signal searches simultaneously. Signal searching in both IS-95 and GPS modes is performed at significantly higher speeds compared to conventional searcher hardware. Moreover, the search hardware can be dynamically configured to operate in either the IS-95 or the GPS mode, eliminating the need for dedicated circuitry for each mode of operation.

    Code division multiple access mobile communication system
    6.
    发明授权
    Code division multiple access mobile communication system 有权
    码分多址移动通信系统

    公开(公告)号：US08335245B2

    公开(公告)日：2012-12-18

    申请号：US12836237

    申请日：2010-07-14

    Applicant: May Suzuki ,  Nobukazu Doi ,  Takashi Yano

    Inventor： May Suzuki ,  Nobukazu Doi ,  Takashi Yano

    IPC: H04B1/00

    CPC classification number: H04B7/2668 ,  H04B1/7075 ,  H04B1/708 ,  H04B7/2628 ,  H04W72/042

    Abstract: In a mobile communication system using a code division multiple access (CDMA) method, spreading code detection and frame/slot timing synchronization (cell search) is conducted by using a long code masked symbol. The spreading factor of the long code masked symbol is set to a value lower than spreading factors of other ordinary symbols. As a result, it becomes possible to reduce the circuit scale and power dissipation of the mobile terminal and raise the speed of cell search.

    Abstract translation: 在使用码分多址（CDMA）方法的移动通信系统中，通过使用长码屏蔽符号来进行扩展码检测和帧/时隙定时同步（小区搜索）。 长码屏蔽符号的扩展因子被设置为低于其他普通符号的扩展因子的值。 结果，可以降低移动终端的电路规模和功耗，提高小区搜索的速度。

    Optimal use of resources for signal processors
    7.
    发明授权
    Optimal use of resources for signal processors 有权
    信号处理器资源的最佳使用

    公开(公告)号：US07903719B2

    公开(公告)日：2011-03-08

    申请号：US11641118

    申请日：2006-12-19

    Applicant: Angelo Genghi

    Inventor： Angelo Genghi

    IPC: H04B1/00

    CPC classification number: H04B1/7077 ,  H04B1/70775 ,  H04B1/708 ,  H04B2201/70707 ,  H04B2201/70715

    Abstract: Systems, methods and devices for signal processing are presented. In particular, methods for the detection of signals in CDMA-based systems are presented, together with corresponding devices. These methods provide more efficient use of correlation resources through proper identification of candidate signal peaks and may include performing at least one pre-detection stage and performing at least one distillation stage.

    Abstract translation: 提出了用于信号处理的系统，方法和装置。 特别地，提出了用于在基于CDMA的系统中检测信号的方法以及相应的设备。 这些方法通过适当地鉴定候选信号峰提供相关资源的更有效的使用，并且可以包括进行至少一个预检测阶段并执行至少一个蒸馏阶段。

    METHODS AND APPARATUS FOR INITIAL ACQUISITION IN A COMMUNICATION SYSTEM
    8.
    发明申请
    METHODS AND APPARATUS FOR INITIAL ACQUISITION IN A COMMUNICATION SYSTEM 有权
    在通信系统中初始采集的方法和装置

    公开(公告)号：US20100322117A1

    公开(公告)日：2010-12-23

    申请号：US12796009

    申请日：2010-06-08

    Applicant: Remi J. Gurski ,  Raghu N. Challa ,  Matthias Brehler

    Inventor： Remi J. Gurski ,  Raghu N. Challa ,  Matthias Brehler

    IPC: H04J3/00

    CPC classification number: H03G3/3078 ,  H03G3/3042 ,  H03G3/3052 ,  H04B1/70735 ,  H04B1/708

    Abstract: Disclosed are methods and apparatus for initial acquisition in a communication system, and in particular Time Division Duplex (TDD) systems such as those found in LTE. A disclosed method, for example, includes running a plurality of predetermined amplifier gain states for a low noise amplifier (LNA) during initial acquisition in a time division duplex (TDD) system, and determining acquisition of a received signal based on searching across the plurality of predetermined amplifier gain states. Forcing the amplifier gain into a set of predetermined gain states affords quicker resolution of initial acquisition for setting the gain of the LNA, which in TDD systems is complicated due to an uncertain uplink/downlink timeline that precludes continuous operation of a gain setting algorithm run in the LNA.

    Abstract translation: 公开了用于在通信系统中的初始采集的方法和装置，特别是诸如在LTE中发现的时分双工（TDD）系统。 所公开的方法例如包括在时分双工（TDD）系统中的初始采集期间运行用于低噪声放大器（LNA）的多个预定的放大器增益状态，以及基于跨越多个的搜索来确定接收信号的获取 的预定放大器增益状态。 将放大器增益强制为一组预定增益状态可以提供更快的初始采集分辨率，用于设置LNA的增益，由于不确定的上行链路/下行链路时间轴，TDD系统复杂，导致增加设置算法持续运行， LNA。

    Multiple antenna servicing by multibranch PSYNC detection module
    9.
    发明授权
    Multiple antenna servicing by multibranch PSYNC detection module 有权
    多分支PSYNC检测模块进行多天线维修

    公开(公告)号：US07835327B2

    公开(公告)日：2010-11-16

    申请号：US11843983

    申请日：2007-08-23

    Applicant: Mark David Hahm ,  Wei Luo

    Inventor： Mark David Hahm ,  Wei Luo

    IPC: H04B7/216 ,  H04J3/16

    CPC classification number: H04J11/0073 ,  H04B1/708

    Abstract: A wireless terminal is operable to receive a Wideband Code Division Multiple Access (WCDMA) signal from a base station and includes clock circuitry, a wireless interface, and a Primary Synchronization (PSYNC) module. The clock circuitry generates a wireless terminal clock using a wireless terminal oscillator. The wireless interface receives the WCDMA signal, which is produced by the base station using a base station clock that is produced using a base station oscillator that is more accurate than the wireless terminal oscillator. The PSYNC module includes a plurality of PSYNC correlation branches. Each PSYNC correlation branch phase rotates the WCDMA signal based upon a respective frequency offset, correlates the phase rotated WCDMA signal with a Primary Synchronization Channel (PSCH) code over a plurality of sampling positions, and produces PSYNC correlation energies based upon the correlations for each of the plurality of sampling positions.

    Abstract translation: 无线终端可操作以从基站接收宽带码分多址（WCDMA）信号，并且包括时钟电路，无线接口和主同步（PSYNC）模块。 时钟电路使用无线终端振荡器产生无线终端时钟。 无线接口接收由基站使用基站振荡器产生的WCDMA信号，该基站时钟是使用比无线终端振荡器更准确的基站振荡器产生的。 PSYNC模块包括多个PSYNC相关分支。 每个PSYNC相关分支相位基于相应的频率偏移旋转WCDMA信号，将相位旋转的WCDMA信号与多个采样位置上的主同步信道（PSCH）码相关联，并且基于每个的相关性产生PSYNC相关能量 多个采样位置。

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