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1. 发明申请

US20150270867A1 TIMING SYNCHRONIZATION FOR WIRED COMMUNICATIONS 审中-公开
标题翻译：用于有线通信的时序同步
公开(公告)号：US20150270867A1
公开(公告)日：2015-09-24
申请号：US14681655
申请日：2015-04-08
申请人： enModus Limited
发明人： Philip YOUNG , Andrew James HEATON
IPC分类号： H04B1/7085 , G05B15/02 , H05B37/02 , H04B1/7075
CPC分类号： H04B1/7085 , H04B1/70751 , H04B2001/70706 , H04B2201/7073 , H05B37/0254 , H05B37/0281 , Y02B20/42
摘要： A wired communications device configured to: receive a spread-spectrum timing-reference signal through a wired communications medium, from a second wired communications device; detect a code-phase of the received timing-reference signal; and transmit data to the second device through the wired communications medium, with a timing that is defined relative to the detected code-phase. Also provided is a master device configured to communicate with the wired communications device. The master device is configured to generate and transmit a spread-spectrum timing-reference signal to one or more first devices, through a wired communications medium and to receive, through the wired communications medium, data transmitted by the one or more first devices.
摘要翻译：一种有线通信设备，被配置为：通过有线通信介质从第二有线通信设备接收扩频定时参考信号; 检测所接收的定时参考信号的码相位; 并且通过有线通信介质通过相对于检测到的码相位定义的定时将数据发送到第二设备。还提供了被配置为与有线通信设备通信的主设备。主设备被配置为通过有线通信介质生成并向一个或多个第一设备发送扩频定时参考信号，并且通过有线通信介质来接收由一个或多个第一设备发送的数据。

2. 发明授权

US07684470B2 Fast acquisition of a pilot signal in a wireless communication device 有权
标题翻译：在无线通信设备中快速获取导频信号
公开(公告)号：US07684470B2
公开(公告)日：2010-03-23
申请号：US11754984
申请日：2007-05-29
申请人： Robbin D. Hughes , De-Gang Yao , Serguei A. Glazko
发明人： Robbin D. Hughes , De-Gang Yao , Serguei A. Glazko
IPC分类号： H04B1/00 , H04W4/00
CPC分类号： H04B1/70775 , H04B1/70751 , H04B1/70754 , H04B1/7115 , H04B2201/70701 , H04B2201/70702
摘要： In a remote unit of a wireless communication system, the speed of acquisition, or reacquisition, of a pilot signal by a search engine is increased. PN space is divided into segments and a coarse search of each segment is performed using a set of “fast” search parameters. A set of peak signal strengths, along with their corresponding PN offsets, is saved for each segment of PN space. Following the search of all segments of PN space, the peak signal strengths which were saved during the coarse acquisition are evaluated. Coarse acquisition search results are used by the remote unit to determine fine search window parameters for subsequent searches performed by the remote unit search engine. The fine search parameters concentrate searching efforts on portions of PN space most likely to contain a viable base station pilot signal.
摘要翻译：在无线通信系统的远程单元中，增加了搜索引擎的导频信号的获取或重新获取的速度。 PN空间被划分成段，并且使用一组“快速”搜索参数来执行每个段的粗略搜索。为PN空间的每个段节省一组峰值信号强度及其对应的PN偏移。在搜索PN空间的所有段之后，评估在粗略采集期间保存的峰值信号强度。远程单元使用粗略采集搜索结果来确定由远程单元搜索引擎执行的后续搜索的精细搜索窗口参数。精细搜索参数将搜索努力集中在最有可能包含可行基站导频信号的PN空间部分上。

3. 发明申请

US20060285611A1 Method and radio receiver for increasing number of symbols used as pilot symbols in communication system 审中-公开
标题翻译：用于在通信系统中用作导频符号的符号数量增加的方法和无线电接收机
公开(公告)号：US20060285611A1
公开(公告)日：2006-12-21
申请号：US11210787
申请日：2005-08-25
申请人： Pasi Kinnunen , Kari Horneman , Kari Pajukoski
发明人： Pasi Kinnunen , Kari Horneman , Kari Pajukoski
IPC分类号： H04L27/00
CPC分类号： H04B1/70751 , H04B2201/70701 , H04L25/0236
摘要： A solution for determining in a radio receiver a data sequence indicating transmission parameters of a frame before the whole frame has been received in the radio receiver in order to obtain additional pilot symbols. According to the provided solution data is received in one or more time intervals, the data being part of a transmitted data sequence indicating transmission parameters of a frame. The possible data sequences are known to the radio receiver. The received data is compared with corresponding data of each known data sequence, and, based on the comparison, the data sequence which is determined to be closest to the received data is selected. The received data of the data sequence indicating the transmission parameters of the frame is then used as pilot data for channel estimation purposes, for example.
摘要翻译：一种用于在无线电接收机中确定指示在整个帧之前的帧的传输参数的数据序列以便获得附加导频符号的解决方案。根据提供的解决方案，在一个或多个时间间隔中接收数据，该数据是指示帧的传输参数的发送数据序列的一部分。可能的数据序列是无线电接收机已知的。将接收到的数据与每个已知数据序列的相应数据进行比较，并且基于比较，选择确定为最接近接收数据的数据序列。例如，将表示帧的传输参数的数据序列的接收数据用作导频数据用于信道估计目的。

4. 发明授权

US07031271B1 Method of and apparatus for activating a spread-spectrum radiotelephone 失效
标题翻译：激活扩频无线电话的方法和装置
公开(公告)号：US07031271B1
公开(公告)日：2006-04-18
申请号：US09314819
申请日：1999-05-19
申请人： Christopher Peter LaRosa , Brian David Storm , Michael John Carney , Tracie Ann Schirtzinger
发明人： Christopher Peter LaRosa , Brian David Storm , Michael John Carney , Tracie Ann Schirtzinger
IPC分类号： H04Q7/00 , G08C7/00
CPC分类号： H04B1/70752 , H04B1/70751 , H04B1/70753 , H04B1/70756 , H04B2201/70701 , H04B2201/70702 , H04B2201/70707 , H04B2201/70709
摘要： A method of activating a radiotelephone operable in a spread-spectrum multiple access radiotelephone system. A searcher receiver (114) is activated, and the searcher receiver (114) acquires a PN sequence timing of a pilot signal. At least one demodulation branch (122) is activated after activation of the searcher receiver (114), and the demodulation branch synchronizes to the PN sequence timing of the selected pilot signal after the searcher receiver (114) has acquired the PN sequence timing.
摘要翻译：一种激活在扩频多址无线电话系统中可操作的无线电话的方法。搜索器接收器（114）被激活，并且搜索器接收器（114）获取导频信号的PN序列定时。在搜索器接收机（114）激活之后，至少一个解调分支（122）被激活，并且在搜索器接收器（114）获取了PN序列定时之后，解调支路与所选导频信号的PN序列定时同步。

5. 发明授权

US06754257B1 Frame timing synchronization method 有权
标题翻译：帧定时同步方法
公开(公告)号：US06754257B1
公开(公告)日：2004-06-22
申请号：US09407750
申请日：1999-09-28
申请人： Soichi Tsumura
发明人： Soichi Tsumura
IPC分类号： H04B1707
CPC分类号： H04B1/70751 , H04B1/70735 , H04B2201/70707 , H04J3/0608 , H04L27/22
摘要： A frame timing synchronization method of establishing frame synchronization includes the steps of obtaining an integration result, a plurality of number of times, by integrating the square of a complex reception sample from an arbitrary integration start point while shifting an integration range at predetermined intervals, making a search for the maximum integration result from the plurality of integration results, demodulating (despreading) complex reception samples included in a predetermined range having an integration start point as a center corresponding to the maximum integration result while setting the respective samples as demodulation (despreading) start points, and establishing frame synchronization by detecting the portion modulated (spread) by BPSK from the obtained demodulation (despreading) results.
摘要翻译：一种建立帧同步的帧定时同步方法包括以下步骤：通过在以任意的积分开始点积分复数接收样本的平方，通过以预定的间隔移位积分范围来获得积分结果多次，使得搜索来自多个积分结果的最大积分结果，将包含在具有积分开始点的预定范围内的解复用（解扩展）复数接收样本作为与最大积分结果相对应的中心，同时将各个样本设置为解调（解扩）通过从获得的解调（解扩）结果检测通过BPSK调制（扩展）的部分来建立帧同步。

6. 发明授权

US06714586B2 Sliding matched filter with flexible hardware complexity 有权
标题翻译：滑动匹配滤波器具有灵活的硬件复杂性
公开(公告)号：US06714586B2
公开(公告)日：2004-03-30
申请号：US09852085
申请日：2001-05-10
申请人： Gang Yang , Don Li
发明人： Gang Yang , Don Li
IPC分类号： H04B1707
CPC分类号： H04B1/70751 , H04B1/70752 , H04B1/70775 , H04B1/7093 , H04B1/7095
摘要： Multi-path effects are common in mobile communications. When coupled with spread-spectrum signals utilizing spreading code sequences, detection of more than one multi-path signal becomes a necessity in order to output a clean signal with little loss. In accord with the invention, a spread-spectrum sliding matched-filter searcher system comprises a partial matched-filter that receives the input spread-spectrum signal. The searcher matches samples of the input signal with a tap length m of the reference code and produces a first correlation value. The first correlation value is compared to a first threshold. When it equals or exceeds the first threshold, the first correlation value is integrated to produce a second correlation value. This second value is compared with a second threshold, which if met signifies the detection of the multi-path signal. The process is repeated until all significant multi-path signals are detected. This design of the present invention is flexible in nature because the searcher can be programmed to act like a matched-filter, a correlator, or a combination of both while significantly improving the search time and reducing the amount of hardware and complexity characteristic of a matched-filter.
摘要翻译：多路径效应在移动通信中很常见。当与利用扩展码序列的扩展频谱信号相结合时，为了输出几乎没有损失的干净信号，检测多于一个多路径信号是必要的。根据本发明，扩频滑动匹配滤波器搜索器系统包括接收输入扩频信号的部分匹配滤波器。搜索者使用参考码的抽头长度m匹配输入信号的样本，并产生第一相关值。将第一相关值与第一阈值进行比较。当其等于或超过第一阈值时，第一相关值被积分以产生第二相关值。将该第二值与第二阈值进行比较，如果满足表示多路径信号的检测。重复该过程，直到检测到所有有效的多路径信号。本发明的这种设计本质上是灵活的，因为搜索器可被编程为像匹配滤波器，相关器或两者的组合一样起作用，同时显着地改善搜索时间并减少硬件的数量和匹配的复杂度特性 -过滤。

7. 发明申请

US20030133430A1 Efficient method of improving detection of signals containing repetitive components 审中-公开
标题翻译：改进检测含有重复组分的信号的有效方法
公开(公告)号：US20030133430A1
公开(公告)日：2003-07-17
申请号：US10228840
申请日：2002-08-27
发明人： William D. Dickson , Paul A. Kline
IPC分类号： H04B007/216
CPC分类号： H04B1/70751 , H04B2201/70701 , H04B2201/70709
摘要： A synchronization channel detection method for cellular transmission is disclosed. Said method is based on an algorithm that adds coherent components and deriving an average of the components in a synchronization signal that is repetitively transmitted over a short period of time. This method achieves a detection gain as compared to correlation algorithms.
摘要翻译：公开了一种用于蜂窝传输的同步信道检测方法。所述方法基于一种算法，其添加相干分量并导出在短时间段内重复发送的同步信号中的分量的平均值。与相关算法相比，该方法实现了检测增益。

8. 发明申请

US20020016949A1 Flexible preamble processing 有权
标题翻译：灵活的前导处理
公开(公告)号：US20020016949A1
公开(公告)日：2002-02-07
申请号：US09922406
申请日：2001-08-03
发明人： Gregory R. Goslin , Venugopal Balasubramonian
IPC分类号： G06F017/50
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. The preamble processing engine detects a code sequence in input, where the code sequence is a sum of a first code sequence and a second code sequence The preamble processing engine includes a data input line, a code input line, a despreader, and a plurality of memory registers. 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：本文公开了用于灵活前同步码处理的架构和方法。前导处理引擎检测输入中的代码序列，其中代码序列是第一代码序列和第二代码序列的和。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。代码输入选择性地接收第一代码序列或第二代码序列，第一代码序列具有比第二代码序列的周期长的周期。解扩器耦合到数据输入线和代码输入线。解扩器在第一代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器寄存器每个仅存储解扩结果的一部分。

9. 发明申请

US20010048713A1 Fast initial acquisition & 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：US20010048713A1
公开(公告)日：2001-12-06
申请号：US09751777
申请日：2000-12-29
发明人： Joel D. Medlock , Uma Jha
IPC分类号： H04K001/00 , H04B015/00 , H04L027/30
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。

10. 发明授权

US6038250A Initial synchronization method and receiver for DS-CDMA inter base station asynchronous cellular system 失效
标题翻译：用于DS-CDMA基站间异步蜂窝系统的初始同步方法和接收机
公开(公告)号：US6038250A
公开(公告)日：2000-03-14
申请号：US3509
申请日：1998-01-06
申请人： Guoliang Shou , Changming Zhou , Xuping Zhou
发明人： Guoliang Shou , Changming Zhou , Xuping Zhou
IPC分类号： H04B1/707 , H04B1/7075 , H04B7/26 , H04W56/00 , H04W76/02 , H04B7/216
CPC分类号： H04B1/7077 , H04B1/7083 , H04B1/70735 , H04B1/70751 , H04B2201/70702
摘要： Cells are searched at a high speed using an initial synchronization method and a receiver for a DS-CDMA inter base station asynchronous cellular system. A base band received signal is input to a matched filter and is correlated with a spread code supplied from a spread code generator. A signal electric power calculator calculates the electric power of the correlation output of the matched filter, and outputs the result to a long code synchronization timing determiner, a threshold value calculator, and a long code identifier. During the initial cell search, the spread code generator outputs a short code #0 that is common to the control channel of each of the base stations. After the long code synchronization timing has been determined, each of the segments of the N chips which constitutes a portion of the synthesized spread code sequence synthesized from a long code #i that is unique to each of the base stations and the short code #0 is sequentially replaced and output.
摘要翻译：使用初始同步方法和用于DS-CDMA基站间异步蜂窝系统的接收机以高速搜索小区。基带接收信号被输入到匹配滤波器，并与从扩展码发生器提供的扩展码相关。信号电力计算器计算匹配滤波器的相关输出的功率，并将结果输出到长码同步定时确定器，阈值计算器和长码标识符。在初始小区搜索期间，扩频码发生器输出每个基站的控制信道共同的短码＃0。在确定了长代码同步定时之后，构成从每个基站唯一的长码#i合成的合成扩展码序列的一部分的N个码片的每个片段和短码＃0 顺序更换并输出。

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