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1. 发明申请

WO2010005685A3 MULTIPLE CORRELATION PROCESSING IN CODE SPACE SEARCH 审中-公开
标题翻译：代码空间搜索中的多重相关处理
公开(公告)号：WO2010005685A3
公开(公告)日：2010-03-11
申请号：PCT/US2009047276
申请日：2009-06-12
申请人： QUALCOMM INC , AHMED RIZWAN , SIMIC EMILIJA M
发明人： AHMED RIZWAN , SIMIC EMILIJA M
IPC分类号： H04B1/707 , G01S19/21 , G01S19/22
CPC分类号： H04B1/7077 , G01S19/30 , H04B1/709 , H04B2201/70715
摘要： Methods and apparatus for code phase processing in a wireless communication device are described herein. A wireless device performs code phase search on a pseudo random code spread signal received over a wireless channel. A correlator correlates the received signal with a plurality of code phases for each of a plurality of frequency hypotheses. A maximum peak and a second peak are determined from the correlation results. Cross correlation processing is performed on the maximum peak and the maximum peak may be discarded in favor of the second peak for position processing, based on the results of the cross correlation.
摘要翻译：本文描述了无线通信设备中用于码相位处理的方法和装置。无线设备对通过无线信道接收的伪随机码扩展信号执行码相搜索。相关器将接收的信号与多个频率假设中的每一个的多个码相关联。根据相关结果确定最大峰值和第二峰值。基于互相关的结果，对最大峰进行互相关处理，并且可以丢弃最大峰以有利于位置处理的第二峰。

2. 发明申请

WO2010019302A3 APPARATUS AND METHOD FOR CROSS-CORRELATION SPUR MITIGATION 审中-公开
标题翻译：用于交叉关联减轻的装置和方法
公开(公告)号：WO2010019302A3
公开(公告)日：2010-05-20
申请号：PCT/US2009045020
申请日：2009-05-22
申请人： QUALCOMM INC , AHMED RIZWAN , WU JIE , SIMIC EMILIJA M , FARMER DOMINIC G
发明人： AHMED RIZWAN , WU JIE , SIMIC EMILIJA M , FARMER DOMINIC G
IPC分类号： G01S1/00
CPC分类号： G01S19/21
摘要： An apparatus and method for cross-correlation spur mitigation comprising choosing from a plurality of peak measurements, a first peak measurement with a first carrier-to-noise density estimate and a first Doppler offset measurement, and a second peak measurement with a second carrier-to-noise density estimate and a second Doppler offset measurement to form a pair; calculating a carrier-to-noise density difference based on the first carrier-to-noise density estimate and the second carrier-to-noise density estimate; calculating a Doppler difference based on the first Doppler offset measurement and the second Doppler offset measurement; comparing the carrier-to-noise density difference to a carrier-to-noise density threshold; and comparing the Doppler difference to at least one Doppler threshold.
摘要翻译：一种用于互相关刺激减轻的装置和方法，包括从多个峰值测量中选择具有第一载波噪声密度估计和第一多普勒偏移测量的第一峰值测量，以及使用第二载波 - 噪声密度估计和第二多普勒偏移测量以形成一对; 基于所述第一载波噪声密度估计和所述第二载波噪声密度估计来计算载波噪声密度差; 基于第一多普勒偏移测量和第二多普勒偏移测量来计算多普勒差; 将载波噪声密度差与载波噪声密度阈值进行比较; 以及将多普勒差异与至少一个多普勒阈值进行比较。

3. 发明申请

WO2006060605A2 SYSTEMS, METHODS, AND APPARATUS FOR JAMMER REJECTION 审中-公开
标题翻译： JAMMER REJECTION的系统，方法和装置
公开(公告)号：WO2006060605A2
公开(公告)日：2006-06-08
申请号：PCT/US2005043529
申请日：2005-12-01
申请人： QUALCOMM INC , SIMIC EMILIJA M , PATRICK CHRISTOPHER , ROWITCH DOUGLAS N
发明人： SIMIC EMILIJA M , PATRICK CHRISTOPHER , ROWITCH DOUGLAS N
IPC分类号： G01S1/00 , G01S19/03 , G01S19/21 , G01S19/22 , G01S19/29 , G01S19/34 , H04B1/707
CPC分类号： G01S19/34 , G01S19/03 , G01S19/21 , G01S19/22 , G01S19/29 , H04B1/7077 , H04K3/228
摘要： A method according to an embodiment obtains a list of peaks for each of a number of frequency hypotheses. Each peak has an energy result and corresponds to a code phase hypothesis. Embodiments include methods and apparatus that may be used in identifying a location of a signal (such as a GPS signal) in a two-dimensional search space. Location information may be further applied to operations such as signal acquisition, signal tracking, position location of a receiver, and timing operations such as the synchronization of one or more other processes.
摘要翻译：根据实施例的方法获得多个频率假设中的每一个的峰值列表。每个峰值具有能量结果，并对应于码相位假设。实施例包括可以用于识别二维搜索空间中的信号（例如GPS信号）的位置的方法和装置。位置信息可以进一步应用于诸如信号获取，信号跟踪，接收机的位置定位等操作，以及诸如一个或多个其它过程的同步的定时操作。

4. 发明申请

WO2012021413A3 TIME-SETTING IN SATELLITE POSITIONING SYSTEM RECEIVERS 审中-公开
标题翻译：卫星定位系统接收机的时间设置
公开(公告)号：WO2012021413A3
公开(公告)日：2012-05-03
申请号：PCT/US2011046821
申请日：2011-08-05
申请人： QUALCOMM INC , HOANG DUONG A , ROWITCH DOUGLAS NEAL , WU JIE , SIMIC EMILIJA M , FARMER DOMINIC GERARD
发明人： HOANG DUONG A , ROWITCH DOUGLAS NEAL , WU JIE , SIMIC EMILIJA M , FARMER DOMINIC GERARD
IPC分类号： G01S19/24
CPC分类号： H04B1/70758 , G01S19/243 , G01S19/246 , H04B2201/70715
摘要： Techniques are provided which may be implemented using various methods and/or apparatuses in a receiver and/or other like device to determine an SPS time using SPS signals based on a correlation process. A verification process may be performed, for example, that verifies a maximum peak in comparison with other peak information resulting from the correlation process, for example, by considering a ratio of a maximum peak to a next maximum peak. A time-setting algorithm may be selected, for example, based, at least in part, on a time uncertainty and/or on a type of demodulation performed on the SPS signal. The time-setting algorithm may operatively control one or both of the correlation and/verification processes in a desired manner given the time uncertainty and/or type/mode of demodulation performed.
摘要翻译：提供了可以使用接收机和/或其他类似设备中的各种方法和/或设备来实现的技术，以基于相关过程来确定使用SPS信号的SPS时间。可以例如通过考虑最大峰值与下一个最大峰值的比率来与例如相关处理产生的其它峰值信息进行比较来验证最大峰值的验证处理。例如，可以至少部分地基于时间不确定性和/或基于在SPS信号上执行的解调类型来选择时间设置算法。给定时间不确定性和/或解调的类型/模式，时间设置算法可以以期望的方式可操作地控制一个或两个相关和/验证过程。

5. 发明申请

WO2010111405A2 SYSTEMS, COMPUTER PROGRAMM PRODUCTS, AND METHODS USING CARRIER PHASES TO DETECT MULTIPATH SIGNALS 审中-公开
标题翻译：系统，计算机程序产品和使用载波相位检测多路信号的方法
公开(公告)号：WO2010111405A2
公开(公告)日：2010-09-30
申请号：PCT/US2010028520
申请日：2010-03-24
申请人： QUALCOMM INC , FARMER DOMINIC GERARD , WU JIE , SIMIC EMILIJA M
发明人： FARMER DOMINIC GERARD , WU JIE , SIMIC EMILIJA M
IPC分类号： H04B1/707
CPC分类号： H04B1/7117 , G01S19/22 , H04B1/709
摘要： A multipath detector includes an RF module receiving multiple signals, and a correlator module receiving the signals from the RF module. The correlator module correlates the signals to create a composite ACF, and produces samples of the composite autocorrelation function (ACF). The samples are time delayed relative to each other. The multipath detector also includes a carrier phase processor that receives the samples and estimates carrier phases associated with each of the samples. The carrier phase processor employs the estimated carrier phases to determine if one of the signals is subject to a multipath delay.
摘要翻译：多路径检测器包括接收多个信号的RF模块和从RF模块接收信号的相关器模块。相关器模块将信号相关联以产生复合ACF，并且产生复合自相关函数（ACF）的样本。样品相对于彼此是时间延迟的。多径检测器还包括载波相位处理器，其接收采样并估计与每个采样相关联的载波相位。载波相位处理器使用估计的载波相位来确定信号中的一个是否经受多径延迟。

6. 发明申请

WO2006122293A3 SYSTEMS, METHODS, AND APPARATUS FOR FREQUENCY CONTROL 审中-公开
标题翻译：用于频率控制的系统，方法和装置
公开(公告)号：WO2006122293A3
公开(公告)日：2007-12-13
申请号：PCT/US2006018375
申请日：2006-05-10
申请人： QUALCOMM INC , SIMIC EMILIJA M , PATRICK CHRISTOPHER , CHALLA RAGHU , ROWITCH DOUGLAS N
发明人： SIMIC EMILIJA M , PATRICK CHRISTOPHER , CHALLA RAGHU , ROWITCH DOUGLAS N
IPC分类号： H04B1/26 , G01S5/14 , G01S19/23
CPC分类号： G01S19/235 , H04B1/26
摘要： A receiver according to one embodiment includes a frequency control unit configured to receive a stream of samples including a plurality of received instances of a transmitted signal. The frequency control unit is configured to output a first correction signal (e.g. indicating a rotation) that is based on more than one of the received instances and a second correction signal (e.g. to control an oscillator) that is also based on more than one of the received instances. In some embodiments, a controlled oscillator is used to receive and/or transmit another signal, such as a signal received from a GPS space vehicle. In other embodiments, the received instances are from a GPS signal. In further embodiments, a fixed-frequency oscillator is used, and the second correction signal is used to receive and/or transmit another signal, such as a GPS signal.
摘要翻译：根据一个实施例的接收机包括：频率控制单元，被配置为接收包括发射信号的多个接收的实例的样本流。频率控制单元被配置为输出基于多于一个接收到的实例的第一校正信号（例如指示旋转）和还基于多个接收实例中的多于一个的第二校正信号（例如，以控制振荡器）接收的实例。在一些实施例中，受控振荡器用于接收和/或发送另一信号，例如从GPS空中交通工具接收的信号。在其他实施例中，所接收的实例来自GPS信号。在另外的实施例中，使用固定频率振荡器，并且第二校正信号用于接收和/或发送诸如GPS信号的另一信号。

7. 发明申请

WO0241595A3 METHOD AND APPARATUS FOR ADJUSTING THE PHASE OF A RECEIVED SIGNAL 审中-公开
标题翻译：调整接收信号相位的方法和装置
公开(公告)号：WO0241595A3
公开(公告)日：2002-07-11
申请号：PCT/US0147158
申请日：2001-11-05
申请人： QUALCOMM INC
发明人： SIMIC EMILIJA M , YOUNIS SAED G , FILIPOVIC DANIEL F
IPC分类号： H03G1/00 , H04L25/06 , H04L27/38 , H04L27/36 , H03G3/20
CPC分类号： H03G1/0088 , H04L25/06 , H04L27/3863
摘要： Techniques to rotate the phase of a received signal to compensate for phase change or discontinuity introduced by circuit elements located directly in the receive signal path. One or more control signals are received, with each control signal being provided to adjust a particular characteristic of one or more circuit elements associated with the receive signal path. A phase rotation corresponding to an operating state defined by the control signals is then determined, and the phase of the received signal is rotated by an amount related to the determined phase rotation. In some designs, the phase rotation is performed on digitized inphase IIN and quadrature QIN samples to generate phase rotated IROT and QROT samples. The phase rotation can be performed by a complex multiply (after DC offset compensation) and, for ease of implementation, can be performed digitally in discrete increments (e.g., 90 DEG increments).
摘要翻译：旋转接收信号的相位以补偿由直接位于接收信号路径中的电路元件引入的相位变化或不连续性的技术。接收一个或多个控制信号，其中提供每个控制信号以调整与接收信号路径相关联的一个或多个电路元件的特定特性。然后确定对应于由控制信号定义的操作状态的相位旋转，并且接收信号的相位旋转与所确定的相位旋转相关的量。在一些设计中，相位旋转对数字化的同相IIN和正交QIN样本进行，以产生相位旋转的IROT和QROT样本。相位旋转可以通过复乘（在DC偏移补偿之后）执行，并且为了便于实现，可以以离散增量（例如，90度增量）进行数字地执行。

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