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31. 发明授权

US5914943A Apparatus and method for establishing acquisition of spreading code in CDMA transmission system 失效
标题翻译：在CDMA传输系统中建立扩展码采集的装置和方法
公开(公告)号：US5914943A
公开(公告)日：1999-06-22
申请号：US696939
申请日：1996-08-23
申请人： Kenichi Higuchi , Mamoru Sawahashi , Fumiyuki Adachi
发明人： Kenichi Higuchi , Mamoru Sawahashi , Fumiyuki Adachi
IPC分类号： H04B1/707 , H04J3/06 , H04J13/00 , H04B15/00 , H04J13/02
CPC分类号： H04J13/0077 , H04B1/70757 , H04B1/7077 , H04B1/708 , H04J3/0602 , H04B1/7095 , H04J13/0003
摘要： A CDMA system capable of quickly establishing acquisition of a long code, a spreading code with a period considerably longer than a symbol length. The received phase of the long code is estimated by inserting an a priori code into a spread signal which is spread by the long code at a fixed interval, and by detecting the start timing of receiving the a priori code, where the a priori code has a correlation value of nearly zero with the long code, and an autocorrelation value of a triangular profile. Its transmitter has an a priori code inserting circuit, and its receiver has a replica generating circuit of the a priori code. In addition, the system includes a plurality of correlators for obtaining correlation values between the received signal and the replica of the a priori code, and a circuit for obtaining the maximum correlation values and their start timings of reception among these correlation values. It estimates the start timing of the a priori code from the start timings of reception that provides the maximum correlation values, and estimates the point separated by a fixed time from the estimated start timing to be the received phase of the long code.
摘要翻译： PCT No.PCT / JP95 / 02718 Sec。 371日期：1996年8月23日 102（e）日期1996年8月23日PCT 1995年12月27日PCT PCT。公开号WO96 / 20544 日期1996年7月4日一种能够快速建立长码的采集的CDMA系统，延长码长度远远大于符号长度。通过将先验码插入到以固定间隔由长码扩展的扩展信号，并且通过检测接收先验码的开始定时来估计长码的接收相位，其中先验码具有与长码接近零的相关值，以及三角形轮廓的自相关值。其发射机具有先验码插入电路，其接收机具有先验码的副本生成电路。此外，该系统包括多个相关器，用于获得接收信号与先验码的副本之间的相关值，以及用于获得这些相关值之间的最大相关值及其开始定时接收的电路。它从提供最大相关值的接收开始定时估计先验码的开始定时，并将从估计的开始定时分离的固定时间点分离为长码的接收相位。

32. 发明授权

US5910948A Acquisition scheme and receiver for an asynchronous DS-CDMA cellular communication system 失效
标题翻译：异步DS-CDMA蜂窝通信系统的采集方案和接收机
公开(公告)号：US5910948A
公开(公告)日：1999-06-08
申请号：US955613
申请日：1997-10-22
申请人： Guoliang Shou , Changming Zhou , Xuping Zhou , Makoto Yamamoto , Sunao Takatori , Mamoru Sawahashi , Fumiyuki Adachi
发明人： Guoliang Shou , Changming Zhou , Xuping Zhou , Makoto Yamamoto , Sunao Takatori , Mamoru Sawahashi , Fumiyuki Adachi
IPC分类号： H04B1/707 , H04B1/708 , H04B1/7083 , H04B7/26 , H04J13/00 , H04L7/00 , H04W36/00 , H04W48/18 , H04W56/00 , H04B7/216
CPC分类号： H04W48/18 , H04B1/70735 , H04B1/70775 , H04B1/708 , H04B1/7083 , H04B1/7093 , H04B1/7117 , H04B2201/70702 , H04W36/00
摘要： The present invention realizes a rapid and efficient cell search and small-size instrument for an asynchronous DS-CDMA cellular system. This cell search detects the correlation between the received signal and the short code of the control channel, and matched filter 22 detects the maximum electric power correlation peak location. Next, using correlators 28-1 to 28-n which are parallelly set in a plurality for RAKE processing with plurality, identifies the long code that is set in the system with the detected long code timing. After the long code is synchronized, a multipath signal is received using 28-1 to 28-n, and the data is judged by RAKE processing. When peripheral cell search is executed, after long code timing is detected by using matched filter 22, the long code of the candidate peripheral cell is designated using the same matched filter. Handover is safely realized by receiving the signal from the connected base station by correlators 28-1 to 28-n, and the base station signal through handover by 22.
摘要翻译：本发明实现了用于异步DS-CDMA蜂窝系统的快速且有效的小区搜索和小尺寸仪器。该小区搜索检测接收信号与控制信道的短码之间的相关性，匹配滤波器22检测最大功率相关峰位置。接下来，使用多个并行设置为用于RAKE处理的多个的相关器28-1至28-n识别具有检测到的长码定时的系统中设置的长码。在长代码同步之后，使用28-1至28-n接收多路径信号，并且通过RAKE处理来判断数据。当执行外围小区搜索时，在通过使用匹配滤波器22检测长码定时之后，使用相同的匹配滤波器来指定候选周边小区的长码。通过由相关器28-1至28-n接收来自所连接的基站的信号，以及通过22次切换的基站信号来安全地实现切换。

33. 发明授权

US5790590A Matched filter circuit 失效
标题翻译：匹配滤波电路
公开(公告)号：US5790590A
公开(公告)日：1998-08-04
申请号：US740672
申请日：1996-10-31
申请人： Guoliang Shou , Changming Zhou , Makoto Yamamoto , Sunao Takatori , Mamoru Sawahashi , Fumiyuki Adachi
发明人： Guoliang Shou , Changming Zhou , Makoto Yamamoto , Sunao Takatori , Mamoru Sawahashi , Fumiyuki Adachi
IPC分类号： H03H15/00 , H03H17/02 , H04B1/7093 , H04J13/00 , H04B15/00
CPC分类号： H04B1/7093
摘要： The present invention has an object to provide a matched filter circuit which is possible to synchronize a spreading code with an input signal. A matched filter according to the present invention samples input signal in response to three clocks from the first to the third shifted by a half cycle of a sampling signal so as to judge whether the sampling clock is ahead or behind of the input signal according to signs of input signal sampled. One clock is selected to be the sampling clock.
摘要翻译：本发明的目的是提供一种可以使扩展码与输入信号同步的匹配滤波器电路。根据本发明的匹配滤波器响应于从第一到第三的三个时钟采样输入信号，移位了采样信号的半个周期，以便根据符号判断采样时钟是否在输入信号的前面或后面的输入信号采样。选择一个时钟作为采样时钟。

34. 发明授权

US06757272B1 Channel estimation unit, and CDMA receiver and CDMA transceiver with channel estimation unit 失效
标题翻译：信道估计单元，以及具有信道估计单元的CDMA接收机和CDMA收发器
公开(公告)号：US06757272B1
公开(公告)日：2004-06-29
申请号：US09375906
申请日：1999-08-17
申请人： Sadayuki Abeta , Mamoru Sawahashi , Fumiyuki Adachi
发明人： Sadayuki Abeta , Mamoru Sawahashi , Fumiyuki Adachi
IPC分类号： H04B1500
CPC分类号： H04W52/24 , H04L25/0214 , H04L25/0232
摘要： There are provided a channel estimation unit for achieving highly accurate channel estimation, a CDMA receiver and a CDMA transceiver with the channel estimation unit. Channel estimates of data symbols are obtained from pilot symbols in a combined symbol sequence which has a plurality of slots and includes the data symbols and the pilot symbols. First, the pilot symbols in the combined symbol sequence are located. Second, pilot blocks are generated by extracting the pilot symbols from two or more slots in the combined symbol sequence. Third, channel estimates of the data symbols are obtained by calculating a weighted sum of averages of the pilot symbols in the individual pilot blocks. The weighted sum is carried out using appropriate weighting factors for individual data symbols in each slot. This enables highly accurate channel estimation.
摘要翻译：提供了一种用于实现高度准确的信道估计的信道估计单元，具有信道估计单元的CDMA接收机和CDMA收发器。从具有多个时隙的组合符号序列中的导频符号获得数据符号的信道估计，并且包括数据符号和导频符号。首先，组合符号序列中的导频符号位于。第二，通过从组合符号序列中的两个或更多个时隙提取导频符号来产生导频块。第三，通过计算各个导频块中的导频符号的平均值的加权和来获得数据符号的信道估计。使用每个时隙中的各个数据符号的适当加权因子来执行加权和。这使得能够进行高度准确的信道估计。

35. 发明授权

US06240148B1 Path-diversity receiving method and system of spread spectrum communication 失效
标题翻译：路径分集接收方法和扩频通信系统
公开(公告)号：US06240148B1
公开(公告)日：2001-05-29
申请号：US08908919
申请日：1997-08-08
申请人： Guoliang Shou , Changming Zhou , Xuping Zhou , Mamoru Sawahashi , Fumiyuki Adachi
发明人： Guoliang Shou , Changming Zhou , Xuping Zhou , Mamoru Sawahashi , Fumiyuki Adachi
IPC分类号： H04B710
CPC分类号： H04B7/08 , H04B1/7115 , H04B2201/70701
摘要： The present invention provides a path-diversity system featuring a small-size phase compensating circuit. This circuit calculates a compensating coefficient according to the signals of a pilot block or a pair of pilot blocks surrounding an information block, and then compensates information signals thereafter by the calculated compensating coefficient.
摘要翻译：本发明提供一种具有小尺寸相位补偿电路的路径分集系统。该电路根据导频块或围绕信息块的一对导频块的信号来计算补偿系数，然后通过计算的补偿系数补偿信息信号。

36. 发明授权

US6167037A Signal transmitting method, transmitter, receiver, and spread-spectrum code synchronizing method for mobile communication system 失效
标题翻译：用于移动通信系统的信号发射方法，发射机，接收机和扩频码同步方法
公开(公告)号：US6167037A
公开(公告)日：2000-12-26
申请号：US952081
申请日：1997-11-03
申请人： Kenichi Higuchi , Mamoru Sawahashi , Fumiyuki Adachi , Koji Ohno , Akihiro Higashi
发明人： Kenichi Higuchi , Mamoru Sawahashi , Fumiyuki Adachi , Koji Ohno , Akihiro Higashi
IPC分类号： H04B1/707 , H04B1/7075 , H04B7/26 , H04W48/16 , H04W56/00 , H04B7/216
CPC分类号： H04B1/70756 , H04B1/70755 , H04B1/708 , H04B1/7083 , H04B2201/70702 , H04J13/16 , H04J2013/0037
摘要： Achieving high speed spreading code synchronization of a forward link control channel. A control channel information signal and traffic channel information signals are each spread by different first spreading codes which are fed from a first spreading code (short code) generator (11), and which have a period equal to the period of an information symbol. Subsequently, only the control channel information signal is spread by a third spreading code which is fed from a third spreading code (long code masked portion complex conjugate code) generator (12), and which has a form of complex conjugate of a long code (second spreading code) used for spreading in common. The signals of the entire channels are summed up by an adder (13) at appropriate timings, and the resultant sum is spread by the second spreading code fed from a second spreading code generator (14), thereby being output as a spread modulation signal.
摘要翻译： PCT No.PCT / JP97 / 00657 Sec。 371日期：1997年11月3日 102（e）日期1997年11月3日PCT 1997年3月4日PCT公布。公开号WO97 / 33400 PCT 日期1997年9月12日正向链路控制通道的高速扩频码同步。控制信道信息信号和业务信道信息信号各自由从第一扩展码（短码）发生器（11）馈送的不同的第一扩展码进行扩展，并且其周期等于信息符号的周期。随后，只有控制信道信息信号被从第三扩展码（长码屏蔽部分复共轭码）发生器（12）馈送的第三扩展码扩展，并且具有长码（第二扩展码）用于共同传播。整个信道的信号在适当的定时由加法器（13）求和，并且所得到的和由第二扩展码发生器（14）馈送的第二扩展码扩展，从而作为扩展调制信号被输出。

37. 发明授权

US08737246B2 Wireless transmission apparatus and precoding method 有权
标题翻译：无线传输装置和预编码方法
公开(公告)号：US08737246B2
公开(公告)日：2014-05-27
申请号：US13202747
申请日：2010-02-23
申请人： Yoshiko Saito , Shinsuke Takaoka , Daichi Imamura , Seigo Nakao , Fumiyuki Adachi , Megumi Ichikawa
发明人： Kenichi Miyoshi , Yoshiko Saito , Shinsuke Takaoka , Daichi Imamura , Seigo Nakao , Fumiyuki Adachi
IPC分类号： G08C15/00
CPC分类号： H04B7/0413 , H04B7/0617 , H04B7/0628 , H04B7/063 , H04B7/0639 , H04L5/0023 , H04W72/044
摘要： A wireless transmission apparatus able to reliably increase outage capacity according to the state of a propagation path. This apparatus is a wireless transmission apparatus (100) which transmits a plurality of streams to a wireless reception apparatus; wherein a time/space allocation determining unit (107) determines the spatial multiplex stream number based on the desired multipath number and the number of reception antenna ports of the wireless reception apparatus, said desired multipath number being calculated based on the detected multipath number, the number of reception antenna ports, and the desired error rate for the plurality of streams; a stream dividing unit (109) divides the transmission data into a plurality of streams of that spatial multiplex stream number; a transmission weight calculation unit (108) calculates a transmission weight based on the desired multipath number, spatial multiplex stream number, and a channel estimation value; and a time precoding unit (1103) and a spatial precoding unit (111) use the transmission weight to precode the plurality of streams.
摘要翻译：一种能够根据传播路径的状态可靠地增加中断容量的无线发送装置。该装置是向无线接收装置发送多个流的无线发送装置（100）其中，时间/空间分配确定单元（107）基于所希望的多路径数目和所述无线接收装置的接收天线端口的数量来确定所述空间多路复用流号码，所述多路径数目是根据检测到的多路径数量来计算的，接收天线端口数量，以及多个流的期望误码率; 流分割单元（109）将传输数据划分成多个流的空间复用流号码; 传输权重计算单元（108）基于所需的多路径数，空间复用流号和信道估计值来计算发送权重; 并且时间预编码单元（1103）和空间预编码单元（111）使用传输权重来对多个流进行预编码。

38. 发明授权

US07920659B2 Wireless communication apparatus and wireless communication method 有权
标题翻译：无线通信装置和无线通信方法
公开(公告)号：US07920659B2
公开(公告)日：2011-04-05
申请号：US11912476
申请日：2006-04-24
申请人： Akihiko Nishio , Katsuhiko Hiramatsu , Fumiyuki Adachi , Kazuaki Takeda , Hiromichi Tomeba
发明人： Akihiko Nishio , Katsuhiko Hiramatsu , Fumiyuki Adachi , Kazuaki Takeda , Hiromichi Tomeba
IPC分类号： H04L27/06
CPC分类号： H04L27/2662 , H04L25/0216 , H04L27/265
摘要： A wireless communication apparatus capable of enhancing the transmission efficiency, while maintaining a good BER characteristic. In this apparatus, a setting part (13) sets, based on the maximum delay amount of a delayed wave and also based on the expansion of impulse response of FDE, an FFT part (14) to establish an FFT section of Nc symbol, and also sets a selecting part (17) to establish a selection section of Nc−2M−Δ symbol that is shorter than the FFT section. The setting part (13) also sets the start points of FFT and selection sections established at this time for such timings that they are shifted by Nc−2M−Δ symbol from the start points of the FFT and selection sections previously established. It should be noted that the maximum delay amount of the delayed wave is Δ symbol, the expansion of impulse response of FDE is plus/minus M symbols, and the symbol block length is Nc.
摘要翻译：一种能够在保持良好的BER特性的同时提高传输效率的无线通信装置。在该装置中，设置部分（13）基于延迟波的最大延迟量并且还基于FDE的脉冲响应的扩展来设置FFT部分（14），以建立Nc符号的FFT部分，以及还设置选择部分（17）以建立Nc-2M-＆Dgr的选择部分; 比FFT部分短的符号。设置部分（13）还设置这样的定时的FFT和选择部分的开始点，使它们被Nc-2M-＆Dgr移位; 来自先前建立的FFT和选择部分的起点的符号。应该注意的是，延迟波的最大延迟量为＆Dgr; 符号，FDE的脉冲响应的扩展是加/减M个符号，符号块长度是Nc。

39. 发明授权

US07903748B2 Transmitter apparatus, communication system, and communication method 有权
标题翻译：发射机，通信系统和通信方式
公开(公告)号：US07903748B2
公开(公告)日：2011-03-08
申请号：US10575160
申请日：2004-10-08
申请人： Fumiyuki Adachi
发明人： Fumiyuki Adachi
IPC分类号： H04L27/28
CPC分类号： H04L1/0083 , H04L1/0071 , H04L1/04 , H04L27/2602
摘要： A communication technology for allowing a mobile communication system to accommodate variable rate users, while obtaining a frequency diversity effect. A transmitter apparatus using, for transmission, transmission signals produced based on data symbols of a predetermined transmission method, comprising an FFT processing part for converting the data symbols to frequency domain data; an interleaver for sorting the frequency domain data; and an IFFT processing part for converting the sorted frequency domain data to a time domain signal; wherein the FFT processing part subjects Q received data symbols to Q-point FFT processing, the interleaver produces N data from Q data outputted from the FFT processing part (where N>Q), and the IFFT processing part subjects the N data outputted from the interleaver to N-point IFFT processing.
摘要翻译：一种用于允许移动通信系统适应可变速率用户，同时获得频率分集效应的通信技术。一种发射装置，用于传输基于预定传输方法的数据符号产生的传输信号，包括用于将数据符号转换为频域数据的FFT处理部分; 用于对频域数据进行排序的交织器; 以及用于将排序的频域数据转换为时域信号的IFFT处理部分; 其中，FFT处理部对Q个接收到的数据符号进行Q点FFT处理，交织器从FFT处理部（N> Q）输出的Q数据生成N个数据，IFFT处理部对从N 交织器到N点IFFT处理。

40. 发明授权

US5896374A Variable rate transmission method, transmitter and receiver using the same 失效
标题翻译：变速率传输方式，发射机和接收机使用相同
公开(公告)号：US5896374A
公开(公告)日：1999-04-20
申请号：US732413
申请日：1996-10-22
申请人： Yukihiko Okumura , Fumiyuki Adachi , Koji Ohno , Akihiro Higashi
发明人： Yukihiko Okumura , Fumiyuki Adachi , Koji Ohno , Akihiro Higashi
IPC分类号： H04B1/707 , H04B7/26 , H04J3/14 , H04J3/16 , H04J13/00 , H04L1/00 , H04L1/08 , H04L7/04 , H04B7/216 , H04J13/02
CPC分类号： H04L1/0046 , H04B1/707 , H04B7/2628 , H04J3/14 , H04J3/1682 , H04L1/0002 , H04L1/0007 , H04L1/0013 , H04L1/0038 , H04L1/0039 , H04L1/0061 , H04L1/0063 , H04L1/0071 , H04L1/0079 , H04L1/0086 , H04L1/08 , H04L7/048 , H04B2201/70703 , H04B2201/70705 , H04L1/0009 , H04L1/0025 , H04L1/0032 , H04L1/0059 , H04L2001/0098 , Y02B60/31
摘要： A variable rate transmission method that can vary the transmission rate of data. A transmitting side supplies a transmitted data sequence to an error detecting encoder 105 and a frame memory 103. The frame memory 103 stores data of a variable length to be transmitted in one frame. The error detecting encoder 105 calculates an error detecting code (such as CRC code) for each frame of the transmitted data. A multiplexer 104 adds the calculated error detecting code ahead of the transmitted data to place it at the initial position of the frame, and sequentially outputs the data sequence frame by frame. A receiving side calculates an error detecting code of the data in each transmitted frame in the same manner as the transmitting side, and compares the calculated error detecting code with the error detecting code at the initial position of the frame. The end bit of the frame data is decided as a position at which the two error detecting codes coincide. This makes it possible to transmit variable length data without informing the receiving side of the data length in each frame. This is equivalent that the transmission rate can be varied freely.
摘要翻译： PCT No.PCT / JP96 / 00419 Sec。 371日期1996年10月22日第 102（e）日期1996年10月22日PCT提交1996年2月23日PCT公布。公开号WO96 / 26582 日期1996年8月29日可变速率传输方法可以改变数据传输速率。发送侧将发送的数据序列提供给错误检测编码器105和帧存储器103.帧存储器103将要发送的可变长度的数据存储在一帧中。错误检测编码器105针对发送数据的每一帧计算错误检测码（例如CRC码）。复用器104将所发送的数据之前的计算出的错误检测码相加，将其置于帧的初始位置，并逐帧地依次输出数据序列。接收侧以与发送侧相同的方式计算每个发送帧中的数据的错误检测码，并将计算出的错误检测码与帧的初始位置处的错误检测码进行比较。帧数据的结束位被确定为两个错误检测码一致的位置。这使得可以在不向每个帧中的接收方通知数据长度的情况下发送可变长度数据。这相当于传输速率可以自由变化。

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