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51. 发明申请

WO03055093A8 A LOW I/O BANDWIDTH METHOD AND SYSTEM FOR IMPLEMENTING DETECTION AND IDENTIFICATION OF SCRAMBLING CODES 审中-公开
标题翻译：一种低I / O带宽方法和系统，用于实现SCRAMBLING代码的检测和识别
公开(公告)号：WO03055093A8
公开(公告)日：2003-10-30
申请号：PCT/US0239723
申请日：2002-12-12
申请人： QUICKSILVER TECH INC
发明人： SAMBHWANI SHARAD , HEIDARI GHOBAD
IPC分类号： H04B1/7073 , H04B1/7075 , H04B1/708 , H04B1/7083 , H04B1/7095 , H04B7/26 , 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。

52. 发明申请

WO2003028240A1 METHOD AND APPARATUS FOR PERFORMING SIGNAL CORRELATION USING HISTORICAL CORRELATION DATA 审中-公开
标题翻译：使用历史相关数据执行信号相关的方法和装置
公开(公告)号：WO2003028240A1
公开(公告)日：2003-04-03
申请号：PCT/US2002/030333
申请日：2002-09-25
申请人： GLOBAL LOCATE, INC.
发明人： ABRAHAM, Charles , DIGGELEN, Frank, van
IPC分类号： H04B1/707
CPC分类号： G01S19/29 , G01S19/23 , G01S19/30 , G01S19/37 , G06F17/15 , H04B1/707 , H04B1/70752 , H04B1/7077 , H04B2201/70715
摘要： A method and apparatus for computing a convolution (109) between an input GPS signal and a reference code by generating the convolution result in real time without storing unprocessed signal samples. The apparatus comprises a vector multiplier (402a, 402b) running at high speed to achieve the same result as a vector multiplier sized to process an entire epoch. Additionally, historical correlation data (113) is used to correct frequency and timing errors.
摘要翻译：一种用于通过在不存储未处理的信号样本的情况下实时产生卷积结果来计算输入GPS信号和参考码之间的卷积（109）的方法和装置。该装置包括以高速运行的矢量乘法器（402a，402b），以获得与尺寸适于处理整个时期的矢量乘法器相同的结果。另外，使用历史相关数据（113）来校正频率和定时误差。

53. 发明申请

WO2003017503A2 SPREAD SPECTRUM RECEIVER ARCHITECTURES AND METHODS THEREFOR 审中-公开
标题翻译：传播频谱接收机架构及其方法
公开(公告)号：WO2003017503A2
公开(公告)日：2003-02-27
申请号：PCT/US2002/022961
申请日：2002-07-19
申请人： MOTOROLA, INC.
发明人： KING, Thomas, Michael , RIEMER, Denise, C. , HARBOUR, Robert, B. , HOOVER, Andrew, P.
IPC分类号： H04B
CPC分类号： H04B1/70752 , G01S19/29 , G01S19/30 , G01S19/37 , H04B1/70753 , H04B2201/70715
摘要： Methods and architectures for code phase searching spread spectrum signals having a repeating sequence of bits. The signals are searched virtually in parallel by segmenting with a divider (314) received signals by sequentially, partially correlating signal segments with a corresponding replica signal segments for a predetermined number of phase delays during a time interval not greater than that required to form the next signal segment. Multiplexors (322) and (330) provide Doppler and replica signal segments data from Doppler signal and replica signal generators (318) and (320) to corresponding multipliers (326) and (332), respectively, for multiplication with corresponding signal segments in a segment register (316). The partial correlation results for each phase delay and at each Doppler frequency are stored in corresponding memory locations in a coherent accumulation RAM (334). The signals may be searched over one or more phase delays and at one or more Doppler frequencies.
摘要翻译：用于码相位搜索具有重复比特序列的扩频信号的方法和体系结构。通过在不大于形成下一个所需的时间间隔的时间间隔内将具有相应副本信号段的信号段与相应的复制信号段顺序地部分地相关联，利用分频器（314）分割接收的信号来虚拟搜索信号信号段。多路复用器（322）和（330）分别将来自多普勒信号和复制信号发生器（318）和（320）的多普勒和复制信号段数据分别提供给对应的乘法器（326）和（332），以便与段寄存器（316）。每个相位延迟和每个多普勒频率的部分相关结果存储在相干累积RAM（334）中的对应的存储单元中。可以通过一个或多个相位延迟和一个或多个多普勒频率来搜索信号。

54. 发明申请

WO01001647A1 METHOD OF CALCULATING DATA SEQUENCES FROM A RECEIVED SIGNAL 审中-公开
标题翻译：计算数据序列的从接收信号的方法
公开(公告)号：WO01001647A1
公开(公告)日：2001-01-04
申请号：PCT/IB2000/000835
申请日：2000-06-08
IPC分类号： H04B1/707 , H04L25/03
CPC分类号： H04B1/70752 , H04B1/70775 , H04L25/03171
摘要： The invention relates to a method of calculating data sequences from a received signal that is characterized by a plurality of bursts. Every burst comprises M test bits and K data bits, the M test bits being known to a recipient. The method is characterized by the following steps: a) correlating a first received signal section that comprises M test bits and Q-M data bits, Q being smaller than K, with any sender signals that can be generated with Q bits, b) correlating a second received signal section that comprises the Q+1 data bit with any sender signals that can be produced with the Q+1 bit, c) calculating the correlations for the received signal section composed of the first and second received signal section by adding up the correlations calculated in a) and b), d) calculating all 2 square forms with the correlations calculated in c), e) searching for the largest square forms and the pertaining data sequences from the 2 square forms, f) repeating steps b) to e) with the data sequences found in step e) and for the received signal sections that have the Q+2 , Q+3 to M+K-1 bit.
摘要翻译：本发明涉及一种用于数据序列的从接收到的信号的计算的方法，包括多个突发。在此情况下，每个脉冲串具有M测试和K的数据比特，从而所述M比特测试接收机已知。该方法包括以下步骤：a）第一接收信号部分，其具有M个测试和QM的数据比特，其中Q是较小的K是，与所有可能的发射信号相关的用b Q个比特生成的）的一个第二接收信号部分相关通过累加在所计算出的具有Q + 1个数据位，与所有可能的传输信号产生具有c）计算的相关性的第一和第二接收信号部分的复合Q + 1个比特的接收信号的部分）和b）的相关性 d）计算所有2 正方形形状与在c）中的相关性计算出的E）搜索由所述2 正方形形状，f）重复步骤最大正方形形状和相关联的数据序列 b）至e）中与在步骤e中）的数据序列，并用于Q + 2，Q + 3到具有接收的信号部分M + K-1个比特。

55. 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）。

56. 发明申请

WO99026370A2 COMMUNICATIONS TERMINAL AND OPERATING METHOD 审中-公开
标题翻译：通信终端和操作方法
公开(公告)号：WO99026370A2
公开(公告)日：1999-05-27
申请号：PCT/GB1998/003401
申请日：1998-11-12
IPC分类号： G01S1/00 , H04B1/707 , H04J13/02
CPC分类号： H04B1/70752 , H04B1/708 , H04B1/709 , H04B1/7102
摘要： A non-coherent technique employs a zero padded FFT for the fast acquisition of direct sequence spread spectrum signals in the presence of large Doppler shifts. The application of a FFT to code acquisition results in decreased acquisition time, and can improve the probability of detection. A set of partial correlators (1) and a zero padded FFT (2) are used to reduce the search region for code acquisition whilst maintaining good frequency resolution for Doppler offset. This approach will prove most pertinent in future reconfigurable terminals.
摘要翻译：非相干技术采用零填充FFT，用于在存在大的多普勒频移的情况下快速获取直接序列扩频信号。 FFT对代码采集的应用导致采集时间缩短，可以提高检测的可能性。使用一组部分相关器（1）和零填充FFT（2）来减少用于代码获取的搜索区域，同时保持多普勒偏移的良好的频率分辨率。这种方法将证明在未来的可重新配置终端中最相关。

57. 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。

58. 发明申请

WO98059445A1 BANDPASS PROCESSING OF A SPREAD SPECTRUM SIGNAL 审中-公开
标题翻译：传播频谱信号的BDPDP处理
公开(公告)号：WO98059445A1
公开(公告)日：1998-12-30
申请号：PCT/US1998/012833
申请日：1998-06-19
IPC分类号： H04B1/707 , H04B1/7075 , H04B1/708 , H04B15/00
CPC分类号： H04B1/70752 , H04B1/707 , H04B1/708
摘要： An apparatus for use in processing a spread spectrum signal digitally sampled at a selected sampling rate comprises a despreading element (132) configured to receive and despread the digitally sampled signal at a centre frequency lower than the sampling rate and higher than zero; and an accumulation element (136) configured to accumulate the despread signal at the center frequency.
摘要翻译：一种用于处理以选定采样率数字采样的扩展频谱信号的装置，包括解扩元件（132），其被配置为以低于采样率并高于零的中心频率接收和解扩数字采样信号; 以及累积元件（136），其被配置为在所述中心频率处累积去扩展信号。

59. 发明申请

WO1997002663A1 CODE ACQUISITION IN A CDMA COMMUNICATION SYSTEM USING MULTIPLE WALSH CHANNELS 审中-公开
标题翻译：使用多个WALSH通道的CDMA通信系统中的代码采集
公开(公告)号：WO1997002663A1
公开(公告)日：1997-01-23
申请号：PCT/US1996011125
申请日：1996-06-28
申请人： QUALCOMM INCORPORATED
发明人： QUALCOMM INCORPORATED , SKINNER, Gordon , HARMS, Brian
IPC分类号： H04B01/707
CPC分类号： H04B1/70775 , B60R11/02 , B60R11/04 , B60R2011/0035 , B60R2011/0059 , B60R2011/0075 , H04B1/70752 , H04B1/70755
摘要： A technique for using energy received by subscriber units over multiple orthogonal channels within a spread spectrum communication system to acquire signal timing by controlling signal amplitude integration intervals used in detecting such timing. Received signals (10, 14, 18) are despread (40, 60) and respective amplitues coherently integrated (42, 44, 46, 62) over periods that are divisible by factors of two into the length of Walsh functions used to generate orthogonal signal channels. Non-coherent combinations of the results of this integration are subsequently formed (68) over periods that commence and terminate on Walsh function boundaries, and used to determine when a correct time offset has been selected for despreading signals. Additional advantages are realized by assigning signals that consistently provide a higher energy content such as paging, synchronization, and most frequently assigned traffic channels to specific orthogonal channels within the communication system. In exemplary embodiments, Walsh functions of length 128 are used as channelizing codes and a pilot signal is assigned to channel 0. This results in traffic channels or paging and synchronization functions being assigned to channel (64) when the integration periods are (64) chips long, and to channels (32, 64 and 96) when the periods are (32) chips long. In this manner, additional energy is available during the integration process for use in determining when correct signal acquisition timing offsets have been selected, without the use of additional hardware.
摘要翻译：一种用于在扩展频谱通信系统内的多个正交信道上使用由用户单元接收的能量的技术，用于通过控制用于检测这种定时的信号幅度积分间隔来获取信号定时。接收信号（10，14,18）被解扩（40,60）和相应的放大器相干地整合（42,44,46,62），这些周期可被二进制因素分解成用于产生正交信号的沃尔什函数的长度通道。随后在Walsh函数边界开始和终止的时段内形成（68）该积分结果的非相干组合，并用于确定何时为解扩信号选择了正确的时间偏移。额外的优点是通过分配一致地向通信系统内的特定正交信道提供诸如寻呼，同步和最频繁分配的业务信道的更高能量内容的信号来实现。在示例性实施例中，使用长度为128的沃尔什函数作为信道化码，并将导频信号分配给信道0.这导致当积分周期为（64）码片时，业务信道或寻呼和同步功能被分配给信道（64）长（32），芯片长（32），（32,64和96）。以这种方式，在集成过程期间可以使用额外的能量来用于确定何时选择正确的信号采集定时偏移，而不使用额外的硬件。

60. 发明申请

WO1996041425A2 DIRECT SEQUENCE FREQUENCY AMBIGUITY RESOLVING RECEIVER 审中-公开
标题翻译：直接序列频率分辨率接收机
公开(公告)号：WO1996041425A2
公开(公告)日：1996-12-19
申请号：PCT/US1996009314
申请日：1996-06-06
申请人： SANCONIX, INC. , SANDERFORD, H., Britton, Jr. , ROUQUETTE, Robert, E. , DAVIS, Robert, J.
发明人： SANCONIX, INC.
IPC分类号： H04B00/00
CPC分类号： H04B1/70752 , H04B1/707 , H04B1/70755 , H04B1/70775 , H04B1/708 , H04B1/7097 , H04B1/7101
摘要： A parallel frequency acquisition technique is disclosed for increasing receiver sensitivity and increasing process gain while reducing the necessary preamble duration required for spread spectrum acquisition. In addition, techniques are disclosed for reducing the effects of jamming and impulse noise on the performance of the receiver as well as enhanced antenna diversity approaches. Further, techniques are taught which compensate for chip code alignment drift, providing an associated transmitter maintains carrier and chip code coherence. These techniques allow for the use of lower cost frequency setting crystals in both the receiver and transmitter as well as the operation of the system over a wider temperature range.
摘要翻译：公开了一种用于增加接收机灵敏度和增加过程增益的并行频率采集技术，同时减少扩频获取所需的必要前导码持续时间。此外，公开了用于减少干扰和脉冲噪声对接收机的性能以及增强的天线分集方法的技术。此外，教导了补偿芯片码对准漂移的技术，提供相关联的发射机维护载波和码片一致性。这些技术允许在接收机和发射机中使用较低成本的频率设置晶体以及在更宽的温度范围内对系统的操作。

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