公开(公告)号：US08842786B2

公开(公告)日：2014-09-23

申请号：US13314787

申请日：2011-12-08

Applicant: Anand P. Narayan ,  Greg Graham ,  David R. Meyer ,  Prashant Jain

Inventor： Anand P. Narayan ,  Greg Graham ,  David R. Meyer ,  Prashant Jain

IPC: H03D1/04 ,  H04B1/7117 ,  H04B1/7105 ,  G01S19/22 ,  G01S5/02 ,  G01S5/10

CPC classification number: H04B1/7097 ,  G01S5/0215 ,  G01S5/10 ,  G01S19/22 ,  H04B1/7093 ,  H04B1/7105 ,  H04B1/7117 ,  H04B2001/70935 ,  H04B2201/70701 ,  H04B2201/70715

Abstract: An interference cancelling receiver combines data from multiple paths after aligning to transmitter timing, and uses either an equalizer or a Rake receiver to compute symbol estimates. Interference estimates are generated from the symbol estimates, and multiple interference estimates are combined after re-aligning the interference estimates to receiver timing. At least two segments of symbol estimates are computed for each segment of interference cancelled data.Various techniques may be employed for controlling the latency and sequencing of these operations, and the subsystems within the canceller may use different processing clock speeds.

Abstract translation: 干扰消除接收机在对准发射机定时之后组合来自多个路径的数据，并且使用均衡器或Rake接收机来计算符号估计。 从符号估计产生干扰估计，并且在将干扰估计重新对准接收机定时之后组合多个干扰估计。 对干扰消除数据的每个段计算符号估计的至少两个段。 可以采用各种技术来控制这些操作的等待时间和顺序，并且消除器内的子系统可以使用不同的处理时钟速度。

公开(公告)号：US08804791B2

公开(公告)日：2014-08-12

申请号：US13942422

申请日：2013-07-15

Applicant: Sony Corporation

Inventor： Katsuyuki Tanaka ,  Hideki Takahashi

IPC: H04B1/00

CPC classification number: H04B1/7097 ,  G01S19/13 ,  G01S19/21 ,  H04B1/1036 ,  H04B1/707 ,  H04B1/7101 ,  H04B2201/70715

Abstract: A communication device according to an embodiment of the present invention includes a communication antenna that receives a transmission signal where a spectrum spread signal subjected to a spectrum spread is modulated; an intermediate frequency converting unit that converts the transmission signal received by the communication antenna into an intermediate frequency signal having a predetermined frequency; an analog to digital converting unit that discretizes the intermediate frequency signal and outputs a discretization signal; a noise removing unit that detects a noise other than a normal thermal noise included in the discretization signal and removes the detected noise from the discretization signal; and a demodulating unit that demodulates the spectrum spread signal, based on the discretization signal that is output from the noise removing unit.

Abstract translation: 根据本发明实施例的通信设备包括：通信天线，其接收经过频谱扩展的频谱扩展信号被调制的发送信号; 中频变换单元，其将由通信天线接收的发送信号转换为具有预定频率的中频信号; 模数转换单元，其离散中频信号并输出​​离散化信号; 噪声去除单元，其检测离散化信号中包括的正常热噪声以外的噪声，并从所述离散化信号中去除检测到的噪声; 以及解调单元，其基于从噪声去除单元输出的离散化信号来解调频谱扩展信号。

公开(公告)号：US08693598B2

公开(公告)日：2014-04-08

申请号：US13204618

申请日：2011-08-05

Applicant: Karthik Subburaj ,  Jawaharlal Tangudu ,  Raghu Ganesan ,  Karthik Ramasubramanian

Inventor： Karthik Subburaj ,  Jawaharlal Tangudu ,  Raghu Ganesan ,  Karthik Ramasubramanian

IPC: H03D1/04

CPC classification number: H04B1/7097 ,  G01S19/21 ,  G01S19/33 ,  H04B1/7073 ,  H04B2201/70715

Abstract: Example embodiments of the systems and methods of dynamic spur mitigation for wireless receivers disclosed herein comprise one or more of a detection module for detecting the presence of a spur and a determination of its frequency, a complex notch filter chain, and a frequency locked loop which ensures that the input spur is notch filtered even if it drifts after detection. When a spur is detected, the frequency of the tone is determined. The spur is then filtered, for example using a phase rotator and a DC separator. The phase rotation is removed in a subsequent stage. The non-DC component from the DC separator is used to track the spur to compensate for any shifting or drifting in the spur.

Abstract translation: 本文公开的用于无线接收机的动态杂散减轻的系统和方法的示例性实施例包括用于检测杂散的存在和其频率的确定的检测模块，复杂陷波滤波器链和频率锁定环中的一个或多个 确保即使在检测到漂移后，输入杂散也被陷波滤波。 当检测到杂音时，确定音调的频率。 然后过滤杂质，例如使用相旋转器和DC分离器。 在后续阶段中除去相位旋转。 来自DC分离器的非直流分量用于跟踪支线以补偿支线中的任何变化或漂移。

公开(公告)号：US08692714B2

公开(公告)日：2014-04-08

申请号：US13138498

申请日：2010-02-26

Applicant: Masatoshi Matsumoto

Inventor： Masatoshi Matsumoto

IPC: G01S19/37 ,  G01S19/31

CPC classification number: H04B1/707 ,  G01S19/30 ,  G01S19/37 ,  H04B2201/70715

Abstract: To realize a GNSS receiver that can perform further optimal correlation processing on a positioning signal phase-modulated by a CBOC signal. A correlation processing module 32 performs correlation processing between a baseband signal and a BOC(1, 1) replica code to output a BOC(1, 1) correlation data, and also performs correlation processing between the baseband signal and a BOC(6, 1) replica code to output a BOC(6, 1) correlation data. A synthesis module 33 uses a BOC(1, 1) synthesizing ratio coefficient G11 and a BOC(6, 1) synthesizing ratio coefficient G61 to synthesize the BOC(1, 1) correlation data with the BOC(6, 1) correlation data, and outputs the synthesized correlation data to a calculation module 30. The calculation module 30 detects a reception environment based on the synthesized correlation data, sets a BOC(1, 1) synthesizing ratio coefficient and a BOC(6, 1) synthesizing ratio coefficient based on the reception environment, and supplies them to the synthesis module 33.

Abstract translation: 实现能够对由CBOC信号进行相位调制的定位信号进一步优化相关处理的GNSS接收机。 相关处理模块32进行基带信号与BOC（1,1）复制码的相关处理，输出BOC（1,1）相关数据，并进行基带信号与BOC（6,1）的相关处理 ）复制代码输出BOC（6,1）相关数据。 合成模块33使用BOC（1,1）合成比率系数G11和BOC（6,1）合成比率系数G61来合成BOC（1,1）相关数据与BOC（6,1）相关数据， 并将合成的相关数据输出到计算模块30.计算模块30基于合成的相关数据检测接收环境，设定BOC（1,1）合成比率系数和BOC（6,1）合成比率系数 在接收环境中，并将其提供给综合模块33。

公开(公告)号：US08670493B2

公开(公告)日：2014-03-11

申请号：US13011451

申请日：2011-01-21

Applicant: Peter D. Karabinis

Inventor： Peter D. Karabinis

IPC: H04L27/00

CPC classification number: H04W12/04 ,  H04B1/69 ,  H04B1/707 ,  H04B1/7097 ,  H04B2201/70715 ,  H04K1/00 ,  H04K3/25 ,  H04K3/827 ,  H04K2203/18 ,  H04L1/0043 ,  H04L1/009 ,  H04L1/0091 ,  H04L5/0007 ,  H04L23/02 ,  H04L25/03834 ,  H04L25/03866 ,  H04L25/03987 ,  H04W12/06 ,  H04W12/08 ,  H04W36/18 ,  H04W48/02 ,  H04W84/045 ,  H04W88/08

Abstract: Systems, methods and/or mobile devices are provided that enable a level of privacy/security in wireless communications to be increased responsive to a content of the wireless communications, biometric data and/or a position from which the wireless communications takes place. A plurality of communications modes is used by the system infrastructure and the plurality of mobile devices communicating therewith to increase privacy and undetectability of transmitted signals. The increased level of privacy and undetectability of signals is provided via pseudo-randomly generated signaling alphabets that are used by the mobile devices and by the system infrastructure to provide the communications. This represents a level of encryption/scrambling that is over and above the conventional encryption and/or scrambling at the bit level. Accordingly, systems, methods and/or devices providing a concatenated level of encryption/scrambling are provided.

Abstract translation: 提供了系统，方法和/或移动设备，其能够响应于无线通信的内容，生物特征数据和/或发生无线通信的位置来增加无线通信中的隐私/安全级别。 多个通信模式被系统基础设施和与其通信的多个移动设备使用以增加发射信号的隐私和不可检测性。 通过伪随机生成的信令字母提供信号的增加的隐私级别和不可检测性，所述信令字母由移动设备和系统基础设施用于提供通信。 这表示超过常规加密和/或比特级加扰的加密/加扰水平。 因此，提供了提供级联级联的加密/加扰的系统，方法和/或设备。

公开(公告)号：US08626214B2

公开(公告)日：2014-01-07

申请号：US13158578

申请日：2011-06-13

Applicant: Fang-Chen Cheng ,  Ren Da

Inventor： Fang-Chen Cheng ,  Ren Da

IPC: H04B15/00 ,  H04W72/08

CPC classification number: H04B1/7107 ,  G01S1/042 ,  G01S5/0215 ,  G01S5/06 ,  H04B2201/70701 ,  H04B2201/70715 ,  H04J11/0036 ,  H04J11/0059

Abstract: The present invention provides a method of interference cancellation. Embodiments of the method may include removing one or more first reference signals from a signal received by a first base station to form a modified signal. The signal includes a superposition first reference signal(s) transmitted by first user equipment served by the first base station and one or more second reference signals transmitted by second user equipment served by a second base station. The method may also include extracting the second reference signal(s) from the modified signal and determining a timing delay between the second user equipment and the first base station using the extracted second reference signal(s).

Abstract translation: 本发明提供一种干扰消除的方法。 该方法的实施例可以包括从由第一基站接收的信号中去除一个或多个第一参考信号以形成修改的信号。 信号包括由第一基站服务的第一用户设备发送的叠加第一参考信号和由第二基站服务的第二用户设备发送的一个或多个第二参考信号。 该方法还可以包括从修改的信号中提取第二参考信号，并且使用所提取的第二参考信号来确定第二用户设备和第一基站之间的定时延迟。

公开(公告)号：US08593345B2

公开(公告)日：2013-11-26

申请号：US13400390

申请日：2012-02-20

Applicant: Paul A. Underbrink ,  Henry D. Falk ,  Steven A. Gronemeyer ,  Chittharanjan Dassannacharya ,  Charles P. Norman ,  Nicolas Vantalon ,  Vojislav Protic

Inventor： Paul A. Underbrink ,  Henry D. Falk ,  Steven A. Gronemeyer ,  Chittharanjan Dassannacharya ,  Charles P. Norman ,  Nicolas Vantalon ,  Vojislav Protic

IPC: G01S19/32

CPC classification number: G01S19/13 ,  G01S19/24 ,  G01S19/34 ,  G01S19/37 ,  H04B1/707 ,  H04B2201/70715

Abstract: A signal processing system for processing satellite positioning signals is described. The system comprises at least one processor and a signal processor operating under a number of operational modes. The signal processor includes at least one of a signal processing subsystem, a fast Fourier transform (FFT) subsystem, and a memory subsystem that are each dynamically and independently configurable in response to the operational modes. Further, the system includes a controller that couples to control transfer of data among the signal processing subsystem and the FFT subsystem via the memory subsystem. Configurability of the memory subsystem includes configuring the memory subsystem into regions according to the operational modes where each region is accessible in one of a number of manners according to the operational modes.

Abstract translation: 描述了一种用于处理卫星定位信号的信号处理系统。 该系统包括在多种操作模式下操作的至少一个处理器和信号处理器。 信号处理器包括信号处理子系统，快速傅立叶变换（FFT）子系统和存储器子系统中的至少一个，每个动态和独立地可以响应于操作模式配置。 此外，该系统包括控制器，其经由存储器子系统耦合以控制信号处理子系统和FFT子系统之间的数据传送。 存储器子系统的可配置性包括根据操作模式将存储器子系统配置到区域中，根据操作模式，可以以多种方式之一访问每个区域。

公开(公告)号：US08576940B2

公开(公告)日：2013-11-05

申请号：US13780480

申请日：2013-02-28

Applicant: EICES Research, Inc.

Inventor： Peter D. Karabinis

IPC: H04L27/00

CPC classification number: H04W12/04 ,  H04B1/69 ,  H04B1/707 ,  H04B1/7097 ,  H04B2201/70715 ,  H04K1/00 ,  H04K3/25 ,  H04K3/827 ,  H04K2203/18 ,  H04L1/0043 ,  H04L1/009 ,  H04L1/0091 ,  H04L5/0007 ,  H04L23/02 ,  H04L25/03834 ,  H04L25/03866 ,  H04L25/03987 ,  H04W12/06 ,  H04W12/08 ,  H04W36/18 ,  H04W48/02 ,  H04W84/045 ,  H04W88/08

Abstract: Embodiments are provided wherein a bandwidth of a waveform sequence that is transmitted by a transmitter in order to convey information is varied. According to additional embodiments, a set of frequencies that is used to provide frequency content to the waveform sequence is also varied and comprises non-contiguous first and second frequency intervals wherein a third frequency interval that is between the first and second frequency intervals remains devoid of providing frequency content to the waveform sequence in order to avoid interference. The invention is relevant to 4G LTE carrier aggregation systems/methods and/or other aspects of 4G LTE. Various transmitter/receiver embodiments are disclosed including direct synthesis transmitter/receiver embodiments.

Abstract translation: 提供了实施例，其中由发送器发送以便传达信息的波形序列的带宽是变化的。 根据另外的实施例，用于向波形序列提供频率内容的一组频率也是变化的，并且包括不连续的第一和第二频率间隔，其中在第一和第二频率间隔之间的第三频率间隔保持没有 为波形序列提供频率内容，以避免干扰。 本发明涉及4G LTE载波聚合系统/方法和/或4G LTE的其它方面。 公开了包括直接合成发射机/接收机实施例的各种发射机/接收机实施例。

公开(公告)号：US08548106B2

公开(公告)日：2013-10-01

申请号：US12565434

申请日：2009-09-23

Applicant: Catalin Lacatus ,  David Akopian ,  Mehdi Shadaram

Inventor： Catalin Lacatus ,  David Akopian ,  Mehdi Shadaram

IPC: H04L25/08 ,  H04B1/00

CPC classification number: G01S19/21 ,  H04B1/7097 ,  H04B2201/70715 ,  H04B2201/709709

Abstract: Provided is a method that includes dynamically adjusting a GPS signature code to minimize the interference (e.g., the cross-correlation interference) experienced due to one or more other GPS signals. Further provided is a method that includes adjusting the complexity of an adaptive solution to reduce the time and processing power associated with tracking a GPS signal.

Abstract translation: 提供了一种方法，其包括动态地调整GPS签名代码以最小化由于一个或多个其它GPS信号而遭受的干扰（例如，互相关干扰）。 还提供了一种方法，其包括调整自适应解决方案的复杂性以减少跟踪GPS信号所需的时间和处理能力。

公开(公告)号：US08514912B2

公开(公告)日：2013-08-20

申请号：US12478483

申请日：2009-06-04

Applicant: Tsubasa Shirai

Inventor： Tsubasa Shirai

IPC: H04B1/00

CPC classification number: H04B1/7075 ,  H04B2201/70715

Abstract: A search frequency correction method includes: obtaining correlation values by correlating between a received signal that is modulated by direct sequence spread spectrum modulation and a replica code of a spread code with respect to I and Q components at a predetermined search frequency, obtaining accumulated correlation values by accumulating the correlation values of each polarity inversion interval with respect to the I and Q components, calculating a plurality of combinations of the accumulated correlation values in both signs, selecting one of the combinations based on the calculation results of the respective combinations, and correcting the search frequency based on a time variation of an IQ phase represented by the accumulated correlation values of the one of the combinations.

Abstract translation: 搜索频率校正方法包括：通过将通过直接序列扩频调制调制的接收信号与扩频码的复制码相对于预定搜索频率的I和Q分量进行相关来获得相关值，获得累加的相关值 通过累积相对于I和Q分量的每个极性反转间隔的相关值，计算两个符号中累积的相关值的多个组合，基于各个组合的计算结果选择组合中的一个，并且校正 所述搜索频率基于由所述组合中的所述一个的累积相关值表示的IQ相位的时间变化。