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1. 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。

2. 发明授权

US5652765A Receiver and repeater for spread spectrum communications 失效
标题翻译：接收机和中继器用于扩频通信
公开(公告)号：US5652765A
公开(公告)日：1997-07-29
申请号：US411645
申请日：1995-05-22
申请人： Fumiyuki Adachi , Mamoru Sawahashi , Akihiro Higashi , Koji Ohno , Tomohiro Dohi
发明人： Fumiyuki Adachi , Mamoru Sawahashi , Akihiro Higashi , Koji Ohno , Tomohiro Dohi
IPC分类号： H04B1/707 , H04B7/06 , H04B7/08 , H04B3/36 , H04B7/17 , H04B17/02 , H04L25/20
CPC分类号： H04B7/0894 , H04B1/712 , H04B7/0671
摘要： A repeater improving the effect of a RAKE reception. A received signal from a base station parallelly passes a first path including a first delay circuit and a second path including no delay circuit, and is transmitted to a mobile station. A received signal from the mobile station parallelly passes a third path including a second delay circuit and a fourth path including no delay circuit, and is transmitted to the base station. The delay time of the delay circuits are set at one chip interval or more of a spreading code. This forcedly produces multipath waves which are resolvable by a RAKE receiver. The RAKE receiver estimates amplitudes of desired wave components for individual delayed waves, performs weighting of the respective delayed wave components from detectors by using the estimated amplitudes, and makes symbol decision in terms of the combined weighted signal.
摘要翻译： PCT No.PCT / JP94 / 01283第 371日期：1995年5月22日 102（e）日期1995年5月22日PCT 1994年8月4日PCT PCT。第WO95 / 05037号公报日期1995年2月16日中继器改善RAKE接收的效果。来自基站的接收信号并行地通过包括第一延迟电路和不包括延迟电路的第二路径的第一路径，并被发送到移动站。来自移动站的接收信号并行地通过包括第二延迟电路的第三路径和不包括延迟电路的第四路径，并且被发送到基站。延迟电路的延迟时间设定为扩展码的一个码片间隔或更多个码片间隔。这强制产生可由RAKE接收机解析的多径波。 RAKE接收机估计各个延迟波的期望波分量的振幅，通过使用估计的幅度对来自检测器的各个延迟波分量进行加权，并根据组合的加权信号进行符号判定。

3. 发明授权

US5692015A Coherent detector and a coherent detection method for a digital communication receiver 失效
标题翻译：相干检测器和数字通信接收机的相干检测方法
公开(公告)号：US5692015A
公开(公告)日：1997-11-25
申请号：US553464
申请日：1995-11-28
申请人： Akihiro Higashi , Fumiyuki Adachi , Koji Ohno , Mamoru Sawahashi
发明人： Akihiro Higashi , Fumiyuki Adachi , Koji Ohno , Mamoru Sawahashi
IPC分类号： H04L7/08 , H04L25/02 , H03D1/00 , H04L27/06
CPC分类号： H04L25/0236 , H04L25/0212 , H04L25/0232 , H04L7/08
摘要： A coherent detection method including a step of estimating a transfer function of a propagation path using pseudo-pilot signals which consist of some information symbols adjacent to pilot signals. The information symbols in the pseudo-pilot signals are assumed to be known. The method includes the steps of estimating the transfer functions using the pilot signals, carrying out interpolation coherent detection of the information symbols using the estimated transfer functions, storing the detection results as the pseudo-pilot signals, reestimating the transfer functions associated with the information symbols corresponding to the pseudo-pilot signals by using the pseudo-pilot signals and the corresponding received signal under the assumption that the pseudo-pilot signals have a known correct pattern, and carrying out the interpolation coherent detection of the individual information symbols by using the transfer functions obtained by the reestimation. This makes it possible to estimate the transfer function at high accuracy with a small number of symbols per pilot signal, thereby improving the detection characteristics.
摘要翻译： PCT No.PCT / JP95 / 01229 Sec。 371日期：1995年11月28日 102（e）1995年11月28日日期PCT 1995年6月21日PCT PCT。公开号WO95 / 35615 日期1995年12月28日一种相干检测方法，包括使用由与导频信号相邻的一些信息符号组成的伪导频信号来估计传播路径的传递函数的步骤。伪导频信号中的信息符号被认为是已知的。该方法包括以下步骤：使用导频信号估计传递函数，使用估计的传递函数执行信息符号的内插相关检测，将检测结果存储为伪导频信号，重新估计与信息符号相关联的传递函数在伪导频信号具有已知正确模式的假设下，通过使用伪导频信号和相应的接收信号对应于伪导频信号，并且通过使用传输来执行个体信息符号的内插相关检测通过重新获得的功能。这使得可以以每个导频信号的少量符号高精度地估计传递函数，从而提高检测特性。

4. 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。

5. 发明授权

US06724806B2 Variable rate transmission and reception methods, and variable rate transmission and reception devices 有权
标题翻译：可变速率发送和接收方法，以及可变速率发送和接收设备
公开(公告)号：US06724806B2
公开(公告)日：2004-04-20
申请号：US09230190
申请日：1999-01-15
申请人： Yukihiko Okumura , Fumiyuki Adachi
发明人： Yukihiko Okumura , Fumiyuki Adachi
IPC分类号： H04B1500
CPC分类号： H04W52/267 , H04B1/707 , H04J13/0048
摘要： A transmission method for implementing variable rate transmission. Part of the baseband processing of a transmitter based on a CDMA transmission scheme is described. A transmitted information sequence in the form of a digital signal is phase modulated by a phase modulator 105. An orthogonal code generator 101 selects, in response to rate information of the transmitted signal, the orthogonal code to be generated. The bit rate of the orthogonal code the orthogonal code generator 101 generates is double the maximum transmission rate. The modulated transmitted signal is multiplied by the orthogonal code corresponding to the rate information with a multiplier 103. The transmitted signal, which is multiplied by the orthogonal code corresponding to the rate information, is further multiplied by a spreading code sequence with a multiplier 104 to be spread into a CDMA signal, and is transmitted under power transmission control based on the rate information. A receiving side can detect the rate without information about the transmission rate.
摘要翻译：一种用于实现可变速率传输的传输方法。描述了基于CDMA传输方案的发射机的基带处理的一部分。数字信号形式的发送信息序列由相位调制器105进行相位调制。正交码发生器101根据发送信号的速率信息选择要产生的正交码。正交码发生器101产生的正交码的比特率是最大传输速率的两倍。经调制的发送信号乘以与乘法器103对应的速率信息的正交码。乘以与速率信息相对应的正交码的发送信号进一步乘以具有乘法器104的扩展码序列，扩展到CDMA信号，并且在基于速率信息的功率传输控制下进行传输。接收侧可以检测速率，而不需要有关传输速率的信息。

6. 发明授权

US6108384A Data transmittion method, data transmitting system and transmitter and receiver 失效
标题翻译：数据传输方式，数据传输系统和发射机和接收机
公开(公告)号：US6108384A
公开(公告)日：2000-08-22
申请号：US11820
申请日：1998-02-23
申请人： Yukihiko Okumura , Fumiyuki Adachi
发明人： Yukihiko Okumura , Fumiyuki Adachi
IPC分类号： H03M13/00 , H04L1/00 , H04L12/70 , H04L25/02 , H04W28/04 , H04W72/04 , H04L23/02 , G06F11/00 , H03D1/00
CPC分类号： H03M13/00 , H03M13/3738 , H03M13/41 , H04L1/0002 , H04L1/0006 , H04L1/0046 , H04L1/0054 , H04L1/0061 , H04L1/0065 , H04L1/0071 , H04L1/0083 , H03M13/09 , H04L1/0025
摘要： A data transmission method, data transmission system, and a transmitter and receiver are provided which can implement higher quality variable rate transmission by making a more positive rate decision. In a variable rate transmission method transmitting fixed time length frames, each including variable length transmitted data, a transmitting side transmits user data plus an error detecting code, and a receiving side, assuming the entire transmittable final bit positions of the frame data, carries out Viterbi decoding of the frame data to the final bit positions. If, at an assumed final bit position, the difference between the maximum value of likelihoods of a plurality of decoded data sequence candidates and the likelihood of the decoded data sequence obtained by terminating the decoding process is within a predetermined range, and a calculated error detecting code agrees with a received error detecting code, a decision is made that the assumed final bit position is the final bit position of the transmitted frame data, and the transmitted data is recovered.
摘要翻译： PCT No.PCT / JP97 / 02145 Sec。 371日期1998年2月23日 102（e）日期1998年2月23日PCT提交1997年6月23日PCT公布。公开号WO97 / 50219 日期1997年12月31日提供了一种数据传输方法，数据传输系统和发射机和接收机，可以通过做出更积极的速率决策来实现更高质量的可变速率传输。在发送固定时间长度帧的可变速率传输方法中，每个包括可变长度发送数据，发送侧发送用户数据加上错误检测码，接收侧假定帧数据的整个可发送最终位位置执行维特比将帧数据解码为最终位位置。如果在假定的最终比特位置，多个解码数据序列候选的似然度的最大值与通过解码处理结束获得的解码数据序列的似然度之间的差在预定范围内，并且计算出的错误检测代码与接收到的错误检测码一致，判定假定的最终比特位置是发送的帧数据的最终比特位置，并且恢复发送的数据。

7. 发明授权

US6034952A Method and instrument for measuring receiving SIR and transmission power controller 失效
标题翻译：测量接收SIR和传输功率控制器的方法和仪器
公开(公告)号：US6034952A
公开(公告)日：2000-03-07
申请号：US983412
申请日：1997-12-12
申请人： Tomohiro Dohi , Syunsuke Seo , Yukihiko Okumura , Mamoru Sawahashi , Fumiyuki Adachi
发明人： Tomohiro Dohi , Syunsuke Seo , Yukihiko Okumura , Mamoru Sawahashi , Fumiyuki Adachi
IPC分类号： H04B7/005 , H04J13/00
CPC分类号： H04W52/241 , H04B17/336
摘要： An SIR measuring apparatus with a simple configuration capable of improving the accuracy of received SIR measurement in CDMA mobile radio equipment using pilot symbols. A received signal (20) is input to a synchronization detector (21) that regenerates the clock timing of symbols and frame timing equivalent to the repetition period of the pilot signal. An interpolating coherent detector (22) produces information symbols (23) obtained from the received signal (20) through absolute phase coherent detection. A decision signal power calculator (24) obtains desired wave power values. A quasi-interference power calculator (25) obtains differences between the power values of the information symbols and a fading envelope, and adopts the differences as the quasi-interference power. Integrators (26 and 27) integrate received desired wave power and quasi-interference wave power. An SIR measuring portion (28) divides an averaged received desired wave power integral by an averaged quasi-interference power integral to obtain the received SIR (29).
摘要翻译： PCT No.PCT / JP97 / 01289第 371日期1997年12月12日 102（e）日期1997年12月12日PCT提交1997年4月14日PCT公布。第WO97 / 39545号公报日期1997年10月23日具有能够提高使用导频符号的CDMA移动无线电设备中的接收SIR测量精度的简单配置的SIR测量装置。接收信号（20）被输入到同步检测器（21），该同步检测器重新产生与导频信号的重复周期相当的符号的时钟定时和帧定时。内插相干检测器（22）通过绝对相位相干检测产生从接收信号（20）获得的信息符号（23）。决定信号功率计算器（24）获得期望的波功率值。准干扰功率计算器（25）获得信息符号的功率值和衰落包络之间的差异，并将该差作为准干扰功率。积分器（26和27）集成了所需的波功率和准干扰波功率。 SIR测量部分（28）将平均的接收期望波功率积分除以平均准干扰功率积分以获得接收SIR（29）。

8. 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。

9. 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。

10. 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。

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