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91. 发明申请

WO2004034604A1 SYSTEM FOR DIRECT ACQUISITION OF RECEIVED SIGNALS 审中-公开
标题翻译：用于直接收取信号的系统
公开(公告)号：WO2004034604A1
公开(公告)日：2004-04-22
申请号：PCT/US2003/031897
申请日：2003-10-09
申请人： THE MITRE CORPORATION , BETZ, John , CAPOZZA, Paul , FITE, John
发明人： BETZ, John , CAPOZZA, Paul , FITE, John
IPC分类号： H04B1/707
CPC分类号： H04B1/70752 , G01S19/30 , H04B1/708 , H04B1/7093
摘要： Signal processing architectures for direct acquisition of spread spectrum signals using long codes. Techniques are described for achieving a high of parallelism, employing code matched filter banks and other hardware sharing. In one embodiment, upper and lower sidebands are treated as two independent signals with identical spreading codes. Cross-correlators, in preferred embodiments, are comprised of a one or more banks of CMFs for computing parallel short-time correlations (STCs) of received signal samples and replica code sequence samples, and a means for calculating the cross-correlation values utilizing discrete-time Fourier analysis of the computed STCs. One or more intermediate quantizers may optionally be disposed between the bank of code matched filters and the cross-correlation calculation means for reducing word-sizes of the STCs prior to Fourier analysis. The techniques described may be used with BOC modulated signals or with any signals having at least two distinct sidebands.
摘要翻译：用于使用长码直接采集扩频信号的信号处理架构。描述了用于实现高并行性，采用代码匹配滤波器组和其他硬件共享的技术。在一个实施例中，上边带和下边带被视为具有相同扩展码的两个独立信号。交叉相关器在优选实施例中包括用于计算接收信号样本和复制码序列样本的并行短时相关（STC）的一个或多个CMF组，以及用于使用离散的计算的STCs的时间傅立叶分析。一个或多个中间量化器可以可选地设置在码组匹配滤波器组和互相关计算装置之间，用于在傅立叶分析之前减少STC的字长。所描述的技术可以与BOC调制信号或具有至少两个不同边带的任何信号一起使用。

92. 发明申请

WO2004015444A1 METHOD AND APPARATUS FOR PERFORMING SIGNAL CORRELATION AT MULTIPLE RESOLUTIONS TO MITIGATE MULTIPATH INTERFERENCE 审中-公开
标题翻译：用于在多个解决方案中执行信号相关以减轻多路干扰的方法和装置
公开(公告)号：WO2004015444A1
公开(公告)日：2004-02-19
申请号：PCT/US2003/024611
申请日：2003-08-06
申请人： GLOBAL LOCATE, INC.
发明人： ABRAHAM, Charles , FUCHS, Donald, L.
IPC分类号： G01S5/14
CPC分类号： G06F17/15 , G01S1/045 , G01S5/0205 , G01S19/22 , G01S19/235 , G01S19/254 , G01S19/256 , G01S19/30 , G01S19/37 , H04B1/70752 , H04B1/70757 , H04B1/7077 , H04B1/709 , H04B1/7095 , H04B2201/70715
摘要： A method and apparatus for mitigating multipath interference in a digital signal correlator forms values representative of magnitude or power of a correlation response between a digital signal and a pseudorandom reference code. The earliest peak in the correlation response is then selected as the correct peak to compute a time delay.
摘要翻译：用于减轻数字信号相关器中的多径干扰的方法和装置形成表示数字信号和伪随机参考码之间的相关响应的幅度或功率的值。然后将相关响应中的最早峰选为正确的峰值以计算时间延迟。

93. 发明申请

WO2003055093A1 A LOW BANDWIDTH METHOD AND SYSTEM FOR IMPLEMENTING DETECTION AND IDENTIFICATION OF SCRAMBLING CODES 审中-公开
标题翻译：实现扫描码检测和识别的低带宽方法和系统
公开(公告)号：WO2003055093A1
公开(公告)日：2003-07-03
申请号：PCT/US2002/039723
申请日：2002-12-12
申请人： QUICKSILVER TECHNOLOGY, INC.
发明人： SAMBHWANI, Sharad , HEIDARI, Ghobad
IPC分类号： H04B1/707
CPC分类号： H04B1/70735 , H04B1/70752 , H04B1/708 , H04B1/7083 , H04B1/7095
摘要： A system for detecting and identifying the identity of a base station or cell which transmits a scrambling code is provided. According to one aspect of the system, the system is used to perform scrambling code detection of eight (8) primary cells (each scrambling code's X-component being spaced sixteen (16) chips apart) in a group. According to another aspect of the system, a single scrambling code generator is used to generate a master scrambling code. The master scrambling code is then used to create individual scrambling codes which are used in correlation with received signals to detect in parallel which one of the eight (8) possible primary cells in the group transmitted the received signals. According to yet another aspect of the system, each of the correlators maintains a corresponding X-component segment of the master scrambling code. For every sixteen (16) chips, a new X-component segment of the master scrambling code is introduced into one of the correlators, a X-component segment of the master scrambling code is dropped from another correlator, and X-component segments of the master scrambling code are sequentially shifted or propagated through the remaining correlators; and concurrent correlations are performed by the correlators using their respective corresponding X-component segments of the master scrambling code and newly received signals.
摘要翻译：提供了一种用于检测和识别发送扰码的基站或小区的身份的系统。根据该系统的一个方面，该系统用于对组（8个）主小区进行扰码检测（每个扰码的X分量间隔十六（16）个码片）。根据系统的另一方面，使用单个扰码发生器来产生主扰码。然后，主扰码用于产生与接收信号相关使用的各个扰码，并行检测组中八（8）个可能的主小区中的哪一个发送接收信号。根据系统的另一方面，每个相关器维护主扰码的相应X分量段。对于每十六（16）个芯片，主扰码的新X分量段被引入到一个相关器中，主扰码的X分量段从另一个相关器中丢弃，并且X分量段主扰码依次移位或传播通过剩余的相关器; 并且相关器使用它们各自对应的主扰频码和新接收信号的X分量段来执行并发相关。

94. 发明申请

WO0197400A3 METHOD AND APPARATUS FOR DEMODULATING SIGNALS PROCESSED IN A TRANSMIT DIVERSITY MODE 审中-公开
标题翻译：用于在发射多样性模式下处理信号的方法和装置
公开(公告)号：WO0197400A3
公开(公告)日：2002-03-28
申请号：PCT/US0119403
申请日：2001-06-14
申请人： QUALCOMM INC
发明人： ROWITCH DOUGLAS NEAL , LEE WAY-SHING , EKVETCHAVIT THUNYACHATE
IPC分类号： H04B1/7075 , H04B1/708 , H04B1/709 , H04B7/06 , H04J13/00 , H04B1/707
CPC分类号： H04B1/70751 , H04B1/70752 , H04B1/708 , H04B1/709 , H04B7/0613 , H04J13/004
摘要： Demodulator architectures for processing a received signal in a wireless communications system. The demodulator includes a number of correlators coupled to a combiner. Each correlator typically receives and despreads input samples (which are generated from the received signal) with a respective despreading sequence to provide despread samples. Each correlator then decovers the despread samples to provide decovered "half-symbols" and further demodulates the decovered half-symbols with pilot estimates to generate correlated symbols. The decovering is performed with a Walsh symbol having a length (T) that is half the lenght (2T) of a Walsh symbol used to cover the data symbols in the transmitted signal. The combiner selectively combines correlated symbols from the assigned correlators to provide demodualted symbols. One or more correlators can be assigned to process one or more instances of each transmiteed signal. The pilot estimates used within each assigned correlator to demodulate the decovered half-symbols are generated based on the signal instance being prcessed by that correlator.
摘要翻译：用于在无线通信系统中处理接收到的信号的解调器架构。解调器包括耦合到组合器的多个相关器。每个相关器通常以相应的解扩序列接收和解扩输入采样（其从接收信号产生），以提供解扩样本。每个相关器然后解码解扩样本以提供去除的“半符号”，并且用导频估计进一步解调已解除的半符号以产生相关符号。使用具有用于覆盖所发送的信号中的数据符号的沃尔什符号的长度（2T）的一半的长度（T）的沃尔什符号执行解复用。组合器选择性地组合来自所分配的相关器的相关符号以提供解调符号。可以分配一个或多个相关器来处理每个透过信号的一个或多个实例。在每个分配的相关器内使用的导频估计是基于被该相关器加权的信号实例来生成的。

95. 发明申请

WO0158040A3 DEVICE FOR CARRYING OUT SEARCH PROCEDURES IN A MOBILE RADIO RECEIVER 审中-公开
标题翻译： DEVICE具体搜索方法，在移动无线电接收器
公开(公告)号：WO0158040A3
公开(公告)日：2002-02-14
申请号：PCT/DE0100440
申请日：2001-02-02
申请人： INFINEON TECHNOLOGIES AG , BECKER BURKHARD , PLECHINGER JOERG , SCHNEIDER MICHAEL , DOETSCH MARKUS , KELLA TIDEYA , JUNG PETER , SCHMIDT PETER , SIMON SVEN
发明人： BECKER BURKHARD , PLECHINGER JOERG , SCHNEIDER MICHAEL , DOETSCH MARKUS , KELLA TIDEYA , JUNG PETER , SCHMIDT PETER , SIMON SVEN
IPC分类号： H04J3/00 , H04B1/707 , H04B7/26 , H04Q7/38
CPC分类号： H04B1/70752 , H04B1/70751 , H04B1/7093 , H04B1/7095
摘要： The invention relates to a device for carrying out search procedures, comprising a memory for storing a digital receive data sequence and a memory in which a predetermined correlation data sequence is stored. A correlator device comprises a first section (A1) in which partial sequences of the receive data sequence are correlated with partial sequences of the correlation data sequence. In the second section (A2), an adjustable number (K) of partial sequence correlation results (OUT1) are added up to produce an accumulated correlation result (OUT2).
摘要翻译：一种用于执行搜索程序装置包括：用于存储数字接收的数据序列的存储器，并且其中的预定相关性的数据序列被存储的存储器。相关器装置包括第一部分（A1），其中所接收的数据序列的部分序列与该相关数据序列的部分序列相关的。在第二部分（A2）序列元件的相关结果（OUT1），以累积相关结果（OUT2）的可调节的数量K被添加。

96. 发明申请

WO01089105A1 A METHOD OF DESPREADING A SPREAD SPECTRUM SIGNAL 审中-公开
标题翻译：一种解决传播频谱信号的方法
公开(公告)号：WO01089105A1
公开(公告)日：2001-11-22
申请号：PCT/EP2001/004595
申请日：2001-04-24
IPC分类号： H04B1/707 , G01S1/00 , H04B15/00 , H04K1/00 , H04Q7/38 , H04B1/69 , G01S1/04 , H04J13/04
CPC分类号： G01S19/30 , G01S19/24 , G01S19/25 , H04B1/70752 , H04B2201/70715
摘要： A method of despreading a target spread spectrum signal containing pseudorandom noise (PRN) code sequences modulated by a data message is disclosed. The method comprises the steps of providing data message information relating to the timing of an epoch of at least one data bit; and performing a correlation of the target signal and a replica signal containing corresponding PRN code sequences using the data message information to minimise degradation of the correlation caused by variations in the PRN code sequences in the target signal attributable to modulation by the data message. The correlation may be timed so as to substantially avoid continuous correlation over an epoch of a data bit. Alternatively, the data message information may further comprise bit information wherein the correlation is modified as a function of the data message information. In particular, where data bit modulation of the PRN code sequences in the target signal is the same as or equivalent to exclusive-or modulation, the polarity of PRN code sequences in the replica signal may be selectively reversed.
摘要翻译：公开了一种解扩包含由数据消息调制的伪随机噪声（PRN）码序列的目标扩频信号的方法。该方法包括以下步骤：提供与至少一个数据比特的时期的定时有关的数据消息信息; 以及使用所述数据消息信息来执行所述目标信号和包含相应的PRN码序列的复制信号的相关性，以使归因于所述数据消息的调制的目标信号中的PRN码序列的变化引起的相关性降低最小化。相关性可以被定时，以便基本上避免在数据位的时期上的连续相关。或者，数据消息信息还可以包括其中相关性被修改为数据消息信息的函数的位信息。特别地，在目标信号中的PRN码序列的数据位调制与异或调制相同或相当的情况下，复制信号中的PRN码序列的极性可以选择性地反转。

97. 发明申请

WO01033741A1 METHOD FOR SYNCHRONIZING A CDMA RECEIVER SIGNAL 审中-公开
标题翻译：方法用于同步CDMA信号接收
公开(公告)号：WO01033741A1
公开(公告)日：2001-05-10
申请号：PCT/EP2000/010940
申请日：2000-11-06
IPC分类号： H04B1/707 , H04B7/26 , H04L7/00 , H04J3/06
CPC分类号： H04B1/70752 , H04B1/70757 , H04B1/70775 , H04B7/2668 , H04B2201/70701
摘要： A method for synchronizing a CDMA receiver signal, wherein a synchronization sequence (SCH) contained in said CDMA receiver signal is determined in several successive steps. At each step, the CDMA receiver signal is correlated within a time- slot/search area with a stored synchronization recognition sequence for the formation of correlation values (KW) and the time-slot/search area of the subsequent search step is narrowed down as a function of the evaluated correlation values with higher search accuracy.
摘要翻译：一种用于同步，其中包括在CDMA的同步序列的接收到的CDMA信号的方法，接收到的（SCH）是在几个连续步骤来确定信号，在每个步骤中，一个时隙的搜索区域内的CDMA接收信号与用于形成存储的同步检测序列相关值（KW）被关联并在所述所评估的相关值（KW）的依赖性的后续搜索步骤的时隙搜索电场集中在升高的搜索准确度。

98. 发明申请

WO01026244A1 APPARATUS AND METHODS FOR RECEIVING INFORMATION USING VARIABLE LENGTH ACCUMULATION SEARCHERS 审中-公开
标题翻译：使用可变长度累积搜索器接收信息的装置和方法
公开(公告)号：WO01026244A1
公开(公告)日：2001-04-12
申请号：PCT/US2000/021847
申请日：2000-08-11
IPC分类号： H04B1/7075 , H04B1/7077 , H04B1/709 , H04B1/711 , H04B1/7117 , H04B1/707
CPC分类号： H04B1/70775 , H04B1/70751 , H04B1/70752 , H04B1/70754 , H04B1/709 , H04B1/711 , H04B1/7117
摘要： Delays in a spread spectrum signal transmitted in a communications medium according to a spreading sequence may be determined by receiving a composite signal including the spread spectrum signal from the communications medium. The composite signal is correlated with the spreading sequence according to a first correlation length, to produce first time-offset correlations of the composite signal with the spreading sequence. Selected ones of the first time-offset correlations of the composite signal then are further correlated with the spreading sequence according to a second correlation length that is longer than the first correlation length, to produce second time-offset correlations of the composite signal with the spreading sequence. At least one of the second time-offset correlations may be selected. By providing variable length accumulation searchers, power and/or processing time can be saved by performing limited correlations for those delays that do not appear to be qualified candidates to be ultimately selected.
摘要翻译：根据扩展顺序在通信介质中发送的扩频信号中的延迟可以通过从通信介质接收包括扩频信号的复合信号来确定。复合信号根据第一相关长度与扩展序列相关，以产生复合信号与扩展序列的第一时间偏移相关。然后，复合信号的第一时间偏移相关中的选定的一个与扩展序列进一步相关，该扩展序列根据长于第一相关长度的第二相关长度，以产生复合信号与扩展的第二时间偏移相关序列。可以选择第二时间偏移相关中的至少一个。通过提供可变长度累积搜索器，可以通过对那些似乎不被最终选择的合格候选者的延迟执行有限的相关性来节省功率和/或处理时间。

99. 发明申请

WO01025813A1 LOCATING A REMOTE UNIT 审中-公开
标题翻译：定位远程单元
公开(公告)号：WO01025813A1
公开(公告)日：2001-04-12
申请号：PCT/US2000/017170
申请日：2000-06-22
IPC分类号： G01S5/02 , G01S19/03 , H04B1/7075 , H04B1/7115 , G01S3/02
CPC分类号： H04B1/70752 , G01S5/02 , H04B1/7075 , H04B1/70754 , H04B1/7115
摘要： Determining a timing offset for remote-unit (113) location is accomplished by comparing a known sequence (203) to the information (201) transmitted by the remote unit (113) and received by the remote site (101, 102). In the preferred embodiment of the present invention a correlation window length (or size of the known sequence (203)) is allowed to vary based on a fundamental geometry of the serving and non-serving base stations, and a distance that the remote unit (113) is from the serving and non-serving base stations (101, 102).
摘要翻译：通过将已知序列（203）与由远程单元（113）发送并由远程站点（101,102）接收的信息（201）进行比较来确定远程单元（113）位置的定时偏移。在本发明的优选实施例中，允许相关窗口长度（或已知序列（203）的大小）基于服务和非服务基站的基本几何形状而变化，并且远程单元 113）来自服务和非服务基站（101,102）。

100. 发明申请

WO01001596A1 METHOD AND APPARATUS FOR FAST WCDMA ACQUISITION 审中-公开
标题翻译：用于快速WCDMA获取的方法和装置
公开(公告)号：WO01001596A1
公开(公告)日：2001-01-04
申请号：PCT/US2000/017898
申请日：2000-06-28
IPC分类号： H04B1/707 , H04B1/7073 , H04B1/7075 , H04B1/708 , H04B1/7083 , H04L7/00 , H04Q7/38
CPC分类号： H04B1/70752 , H04B1/70735 , H04B1/70755 , H04B1/708 , H04B1/7083 , H04B2201/70701 , H04B2201/70707
摘要： A method and apparatus for quickly acquiring synchronization of a signal in WCDMA communication system utilizing variable duration sample accumulation, validity testing of decoder estimates, and parallel decoding of multiple synchronization signals within a PERCH channel. The receiver (204) accumulates the samples necessary to reliably determine slot timing. Until slot timing estimates pass a validity test, samples are accumulated (304A, 304B) for frame timing estimates. Until frame timing estimates pass a validity test, samples are analyzed to determine the pilot offset of the channel.
摘要翻译：一种用于在WCDMA通信系统中利用可变持续时间采样累加，解码器估计的有效性测试以及在PERCH信道内的多个同步信号的并行解码来快速获取信号的同步的方法和装置。接收机（204）累积可靠地确定时隙定时所需的采样。在时隙定时估计通过有效性测试之前，对于帧定时估计，采样被累积（304A，304B）。直到帧定时估计通过有效性测试，分析样本以确定信道的导频偏移。

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