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61. 发明专利

JP2009010950A Acquisition of gated pilot 有权
标题翻译：收购导向导弹
公开(公告)号：JP2009010950A
公开(公告)日：2009-01-15
申请号：JP2008160465
申请日：2008-06-19
申请人： Qualcomm Inc , クゥアルコム・インコーポレイテッドQualcomm Incorporated
发明人： JOSHI ABHAY A , NEUFELD ARTHUR JAMES
IPC分类号： H04B1/7073 , H04B1/7075 , H04B1/7077 , H04B1/709
CPC分类号： H04B1/70751 , H04B1/70735 , H04B1/7077 , H04B1/709 , H04B2201/70701 , H04B2201/70702
摘要： PROBLEM TO BE SOLVED: To disclose systems and techniques for acquiring a gated pilot signal.
SOLUTION: A gated pilot signal can be acquired, by searching for a first gated pilot signal, deriving timing information from the search for the first gated pilot signal, and searching for a second gated pilot signal using the timing information. This is executed in a variety of fashions, including a receiver with a searcher configured to generate a bit sequence, a correlator configured for correlating a received signal with the bit sequence, and a processor configured to detect a first gated pilot signal as a function of the correlation, derive timing information from the first gated pilot signal and detect a second gated pilot signal, by using the timing information to control the bit sequence generated by the searcher.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：公开用于获取门控导频信号的系统和技术。解决方案：可以通过搜索第一门控导频信号，从搜索第一选通导频信号导出定时信息，并使用定时信息搜索第二门控导频信号，来获取门控导频信号。这是以各种方式执行的，包括具有被配置为生成比特序列的搜索器的接收机，被配置为将接收到的信号与比特序列相关的相关器，以及被配置为检测第一门控导频信号作为相关性，通过使用定时信息来控制由搜索器产生的比特序列，从第一选通导频信号导出定时信息并检测第二门控导频信号。版权所有（C）2009，JPO＆INPIT

62. 发明专利

JP2003500892A Method and apparatus for acquiring a spread spectrum signal 有权
公开(公告)号：JP2003500892A
公开(公告)日：2003-01-07
申请号：JP2000619132
申请日：2000-05-10
申请人：モトローラ・インコーポレイテッド
发明人：カーニー・マイケル・ジョン , シャーツィンジャー・トレイシー・アン , ステックル・デイブ , ストーム・ブライアン・デービッド , ベッカー・クリストファー , ラローサ・クリストファー・ピーター
IPC分类号： H04B1/7075 , H04B1/709 , H04J13/00
CPC分类号： H04B1/70752 , H04B1/70751 , H04B1/70753 , H04B1/70756 , H04B1/709 , H04B2201/70701 , H04B2201/70702 , H04B2201/70707 , H04B2201/70709
摘要： (57)【要約】【課題】無線電話におけるスペクトル拡散信号の取得時間を短縮しかつ電力消費を低減する。【解決手段】符号分割多元接続（ＣＤＭＡ）無線電話１０４のための擬似ランダム（ＰＮ）シーケンスタイミングの取得のための装置１１４である。バッファ２３０は少なくとも一つのパイロット信号の表現のサンプルを格納する。バッファ２３０に結合された相関器２０２は前記サンプルの少なくとも一部を複数の異なるＰＮオフセットの各々におけるＰＮシーケンスと相関して対応する相関エネルギを生成するよう動作する。相関器２０２に結合されたコントローラ１１１はある特定のＰＮオフセットにおけるＰＮシーケンスが少なくともあるエネルギしきい値に等しい相関エネルギを生成するやいなや相関器２０２を中断する。

63. 发明申请

WO2003017518A1 DATA MESSAGE BIT SYNCHRONIZATION AND LOCAL TIME CORRECTION METHODS AND ARCHITECTURES 审中-公开
标题翻译：数据信息位同步和本地时间校正方法和架构
公开(公告)号：WO2003017518A1
公开(公告)日：2003-02-27
申请号：PCT/US2002/024903
申请日：2002-08-06
申请人： MOTOROLA INC.
发明人： KING, Thomas, Michael , GEIER, George, Jeffrey , STROTHER, Troy, L.
IPC分类号： H04B1/69
CPC分类号： G01S19/24 , G01S19/254 , G01S19/256 , G01S19/258 , G01S19/30 , H04B1/70751 , H04B1/708 , H04B2001/70706
摘要： Methods and architectures for data message bit synchronization of a spread spectrum signal having a repeating sequence of pseudorandom code bits (314) modulated with data message bits having a data bit time that is an integer number of a repeat time of the pseudorandom bits (314). In one embodiment, an adjusted bit sync offset time is determined for each of a plurality of signals for which bit sync offset time is not known based on a corresponding clock error corrected propagation time for each signal, based on a known bit synch offset time and based on a clock error propagation time of the signal for which bit synch offset time is known.
摘要翻译：用于具有由具有伪随机位（314）的重复时间的整数的数据位时间调制的伪随机码位（314）重复序列的扩频信号的数据消息位同步的方法和架构，。在一个实施例中，基于已知的位同步偏移时间，基于每个信号的对应的时钟误差校正的传播时间，为多个信号中的每一个确定位同步偏移时间未知的经调整的位同步偏移时间，以及基于已知位位同步偏移时间的信号的时钟误差传播时间。

64. 发明申请

WO0213400A3 FLEXIBLE PREAMBLE PROCESSING 审中-公开
标题翻译：灵活的前导处理
公开(公告)号：WO0213400A3
公开(公告)日：2002-04-11
申请号：PCT/US0124630
申请日：2001-08-03
申请人： MORPHICS TECH INC
发明人： GOSLIN GREGORY R , BALASUBRAMONIAN VENUGOPAL
IPC分类号： H04B1/707 , H04B1/7075 , H04B1/7077 , H04B1/69
CPC分类号： H04B1/7077 , H04B1/707 , H04B1/70751 , H04B2201/70701 , H04B2201/70707 , H04J3/0611
摘要： An architecture and method for flexible preamble processing is disclosed herein. A preamble processing engine (220) detects a code sequence in input, where the code sequence is a sum of a first code sequence (240) and a second code sequence (244). The preamble processing engine includes a data input line, a code input line, a despreader, and a plurality of memory registers (300a-300m). The code input selectively receives the first code sequence or the second code sequence, the first code sequence having a period longer than a period for the second code sequence. The despreader is coupled to the data input line and the code input line. The despreader producing a despread result between the first code sequence and the input data. Lastly, the plurality of memory registers, which are coupled to the despreader, each stores only a portion of the despread results.
摘要翻译：这里公开了用于灵活的前导码处理的架构和方法。前导码处理引擎（220）检测输入中的码序列，其中码序列是第一码序列（240）和第二码序列（244）的和。前导码处理引擎包括数据输入线，代码输入线，解扩器和多个存储器寄存器（300a-300m）。代码输入选择性地接收第一代码序列或第二代码序列，第一代码序列的周期长于第二代码序列的周期。解扩器连接到数据输入线和代码输入线。解扩器在第一码序列和输入数据之间产生解扩结果。最后，耦合到解扩器的多个存储寄存器每个仅存储一部分解扩结果。

65. 发明申请

WO01054432A2 EFFICIENT SYSTEM AND METHOD FOR FACILITATING QUICK PAGING CHANNEL DEMODULATION VIA AN EFFICIENT OFFLINE SEARCHER IN A WIRELESS COMMUNICATIONS SYSTEM 审中-公开
标题翻译：有效的系统和方法，用于通过无线通信系统中的有效离线搜索器来实现快速寻呼信道解调
公开(公告)号：WO01054432A2
公开(公告)日：2001-07-26
申请号：PCT/US2001/000939
申请日：2001-01-12
IPC分类号： H04B1/7075 , H04B1/7077 , H04B7/26 , H04W68/00 , H04Q7/00
CPC分类号： H04W68/00 , H04B1/70751 , H04B1/7077 , H04B2201/70702 , H04B2201/70707 , Y02D70/40
摘要： A system for facilitating the detection and successful decoding of a quick paging channel adapted for use with a wireless communications system (10) supporting a primary paging channel and a quick paging channel. The system includes a first mechanism (46, 48, 50) for detecting a pilot signal associated with the quick paging channel based on a received signal and includes a coherent integrator (104, 106) of a first length (N) and a noncoherent integrator (114) of a second length (M). The second mechanism determines receiver operating characteristics of the system based on the pilot signal and a quick paging channel signal associated with the quick paging channel. The third mechanism optimizes the first length and the second length based on the receiver operating characteristics.
摘要翻译：一种便于对支持主寻呼信道和快速寻呼信道的无线通信系统（10）使用的快速寻呼信道的检测和成功解码的系统。该系统包括用于基于接收到的信号检测与快速寻呼信道相关联的导频信号的第一机制（46,48,50），并且包括第一长度（N）和非相干积分器的相干积分器（104,106）（114）的第二长度（M）。第二机制基于导频信号和与快速寻呼信道相关联的快速寻呼信道确定系统的接收机操作特性。第三机构基于接收器的操作特性来优化第一长度和第二长度。

66. 发明申请

WO00070792A1 METHOD AND APPARATUS FOR ACQUISITION OF A SPREAD-SPECTRUM SIGNAL 审中-公开
标题翻译：用于获取传播信号的方法和装置
公开(公告)号：WO00070792A1
公开(公告)日：2000-11-23
申请号：PCT/US2000/012674
申请日：2000-05-10
IPC分类号： H04B1/7075 , H04B1/709 , H04B7/216
CPC分类号： H04B1/70752 , H04B1/70751 , H04B1/70753 , H04B1/70756 , H04B1/709 , H04B2201/70701 , H04B2201/70702 , H04B2201/70707 , H04B2201/70709
摘要： An apparatus (114) for acquiring a pseudo-random (PN) sequence timing for a code division multiple access (CDMA) radiotelephone (104). A buffer (230) stores samples of representations of at least one pilot signal. A correlator (202) coupled to the buffer (230) is operable to correlate at least a portion of the samples with a PN sequence at each of a plurality of different PN offsets to produce corresponding correlation energies. A controller (116) coupled to the correlator (202) interrupts the correlator (202) as soon as the PN sequence at a particular PN offset produces a correlation energy at least equal to an energy threshold.
摘要翻译：一种用于获取码分多址（CDMA）无线电话机（104）的伪随机（PN）序列定时的装置（114）。缓冲器（230）存储至少一个导频信号的表示样本。耦合到缓冲器（230）的相关器（202）可操作以使至少一部分采样与多个不同PN偏移中的每一个处的PN序列相关联，以产生相应的相关能量。一旦特定PN偏移的PN序列产生至少等于能量阈值的相关能量，耦合到相关器（202）的控制器（116）中断相关器（202）。

67. 发明申请

WO99024916A1 EFFICIENT CORRELATION OVER A SLIDING WINDOW 审中-公开
标题翻译：有效的关联在一个滑动窗口
公开(公告)号：WO99024916A1
公开(公告)日：1999-05-20
申请号：PCT/US1998/023960
申请日：1998-11-10
IPC分类号： G06F17/15 , H04B1/707
CPC分类号： H04B1/70752 , G06F17/15 , H04B1/70751 , H04B1/7095 , H04B2201/70707
摘要： The details of an improved correlator and efficient method of correlation are disclosed. The last M received signal samples are compared with all shifts of a given M-bit binary codeword. The correlator adds or subtracts each of the signal samples accordingly, as the corresponding shift of the codeword contains a binary "1" or "0" in that position. The total is output for each new signal sample received, with a shift of one position between the signal samples and the codeword.
摘要翻译：公开了改进的相关器和有效的相关方法的细节。将最后M个接收到的信号样本与给定的M位二进制码字的所有移位进行比较。相关器相应地添加或减少每个信号样本，因为码字的相应移位在该位置包含二进制“1”或“0”。对于接收到的每个新的信号样本，输出总数，信号样本和码字之间移位一个位置。

68. 发明授权

US08005315B2 Spectrum spreading signal demodulation method and apparatus 有权
标题翻译：频谱扩展信号解调方法和装置
公开(公告)号：US08005315B2
公开(公告)日：2011-08-23
申请号：US12586531
申请日：2009-09-23
申请人： Katsuyuki Tanaka
发明人： Katsuyuki Tanaka
IPC分类号： G06K9/36
CPC分类号： G06F17/156 , G01S7/4802 , G01S19/29 , G01S19/30 , H04B1/7075 , H04B1/70751 , H04B2201/70715
摘要： A spread spectrum signal demodulating method whereby spread-code synchronous acquisition and carrier synchronous acquisition are performed using FFT at high speed, wherein a received signal, of which the carrier wave is modulated with a signal obtained by spectrum-spreading data with a spread code, is subjected to the FFT and the result of the FFT is stored in a first memory. The FFT result of the received signal stored in the first memory and the result of FFT of the spread code stored in a second memory are read out and multiplied to detect the correlation between the received signal and the spread code. A readout address of either the FFT result of the received signal or the FFT result of the spread code is shifted by an amount corresponding to a carrier frequency of the received signal.
摘要翻译：一种扩展频谱信号解调方法，其特征在于，利用高速FFT进行扩频码同步采集和载波同步采集，其中，利用扩展码通过频谱扩展数据获得的信号调制载波的接收信号，进行FFT，FFT的结果存储在第一存储器中。存储在第一存储器中的接收信号的FFT结果和存储在第二存储器中的扩展码的FFT结果被读出并相乘以检测接收信号和扩展码之间的相关性。接收信号的FFT结果或扩展码的FFT结果的读出地址偏移与接收信号的载波频率对应的量。

69. 发明授权

US07623566B2 Method and apparatus for demodulating signals processed in a transmit diversity mode 有权
标题翻译：用于解调以发射分集模式处理的信号的方法和装置
公开(公告)号：US07623566B2
公开(公告)日：2009-11-24
申请号：US11624194
申请日：2007-01-17
申请人： Douglas Neal Rowitch , Way-Shing Lee , Thunyachate Ekvetchavit
发明人： Douglas Neal Rowitch , Way-Shing Lee , Thunyachate Ekvetchavit
IPC分类号： H04B1/69 , H04B1/707 , H04B1/713
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 length (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 demodulated symbols. One or more correlators can be assigned to process one or more instances of each transmitted signal. The pilot estimates used within each assigned correlator to demodulate the decovered half-symbols are generated based on the signal instance being processed by that correlator.
摘要翻译：用于在无线通信系统中处理接收信号的解调器架构。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。使用具有用于覆盖发送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发射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根据该相关器正在处理的信号实例产生的。

70. 发明授权

US07031376B2 Fast initial acquisition and search device for a spread spectrum communication system 失效
标题翻译：用于扩频通信系统的快速初始采集和搜索设备
公开(公告)号：US07031376B2
公开(公告)日：2006-04-18
申请号：US09751777
申请日：2000-12-29
申请人： Joel D. Medlock , Uma Jha
发明人： Joel D. Medlock , Uma Jha
IPC分类号： H04B1/707
CPC分类号： H04B1/708 , H04B1/7075 , H04B1/70751 , H04B1/70755 , H04J13/0022
摘要： A fast initial acquisition and search device for a spread spectrum communication system is disclosed herein. The search device includes a memory for storing the first code sequence, and a plurality of computation circuits coupled in parallel to the memory. The search device also includes a plurality of threshold detector circuits. Each of the plurality of threshold detector circuits is respectively coupled to one of the plurality of computation circuits. Each of the plurality of computation circuits implements a unique phase offset for a second code sequence with respect to the first code sequence. A correlation operation is performed in parallel at each of the plurality of computation circuits followed by a threshold evaluation that indicates whether the correlation result satisfied a threshold value.
摘要翻译：本文公开了一种用于扩展频谱通信系统的快速初始采集和搜索装置。搜索装置包括用于存储第一代码序列的存储器和并联耦合到存储器的多个计算电路。搜索装置还包括多个阈值检测器电路。多个阈值检测器电路中的每一个分别耦合到多个计算电路中的一个。多个计算电路中的每一个相对于第一代码序列实现针对第二代码序列的唯一的相位偏移。在多个计算电路中的每一个并行执行相关操作，接着是指示相关结果是否满足阈值的阈值评估。

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