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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

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。

3. 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。

4. 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）。

5. 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。

6. 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。

7. 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。

8. 发明授权

US5815812A Soft handoff system of spread spectrum communication 失效
标题翻译：软切换系统的扩频通信
公开(公告)号：US5815812A
公开(公告)日：1998-09-29
申请号：US760257
申请日：1996-12-05
申请人： Changming Zhou , Guoliang Shou , Makoto Yamamoto , Mamoru Sawahashi , Fumiyuki Adachi , Sunao Takatori
发明人： Changming Zhou , Guoliang Shou , Makoto Yamamoto , Mamoru Sawahashi , Fumiyuki Adachi , Sunao Takatori
IPC分类号： H04J13/00 , H04B1/7093 , H04W36/18 , H04W36/36 , H04Q7/32
CPC分类号： H04B1/7093 , H04W36/18
摘要： The present invention provides a system for soft handoff, which processes in high speed. A system according to the present invention substantially realizes a multiplication by a circuit for classifying received signals from a plurality of cell site stations once held in an analog sampling and holding circuit into two groups, multiplication and accumulation, by a small circuit of low electric power consumption.
摘要翻译：本发明提供了一种用于软切换的系统，其高速处理。根据本发明的系统基本上实现了一种电路的乘法，该电路用于将一次保持在模拟采样和保持电路中的多个小区站点的接收信号分类成两组，通过低功率的小电路进行乘法和累加消费。

9. 发明授权

US5748623A Code division multiple access transmitter and receiver 失效
标题翻译：码分多址发射机和接收机
公开(公告)号：US5748623A
公开(公告)日：1998-05-05
申请号：US428203
申请日：1995-06-05
申请人： Mamoru Sawahashi , Fumiyuki Adachi
发明人： Mamoru Sawahashi , Fumiyuki Adachi
IPC分类号： H04B1/707 , H04J13/00 , H04B7/216
CPC分类号： H04J13/00
摘要： A code division multiple access transmitter and receiver that makes it possible to reduce its size by designating a spreading code and a carrier frequency in a baseband. It includes a primary modulator for performing primary modulation by transmission information, thereby producing a primary modulated I signal and a primary modulated Q signal, a spreading code generator for generating a spreading code with a frequency higher than a rate of the transmission information, a secondary modulator for spread-modulating the primary modulated I signal and Q signal by using the spreading code, thereby outputting spread I-channel data and spread Q-channel data, a frequency offset circuit for offsetting the center frequency of the spread I-channel data and Q-channel data by a designated offset frequency, thereby outputting frequency offset data, and a transmitting circuit for converting the frequency offset data into a transmitted signal.
摘要翻译： PCT No.PCT / JP94 / 01450 Sec。 371日期：1995年6月5日 102（e）日期1995年6月5日PCT 1994年9月2日PCT公布。第WO95 / 06987号公报日期1995年3月9日一种码分多址发射机和接收机，可以通过在基带中指定扩展码和载波频率来减小其大小。它包括一个主调制器，用于通过传输信息执行一次调制，从而产生一次调制的I信号和一次调制的Q信号，一个用于产生频率高于传输信息速率的扩展码的扩展码发生器，调制器，用于通过使用扩展码扩展调制一次调制的I信号和Q信号，由此输出扩展的I信道数据和扩展Q信道数据，用于抵消扩展的I信道数据的中心频率的频率偏移电路，通过指定的偏移频率的Q信道数据，从而输出频率偏移数据，以及用于将频率偏移数据转换为发送信号的发送电路。

10. 发明授权

US5745531A Automatic gain control apparatus, communication system, and automatic gain control method 失效
标题翻译：自动增益控制装置，通信系统和自动增益控制方法
公开(公告)号：US5745531A
公开(公告)日：1998-04-28
申请号：US411605
申请日：1995-06-26
申请人： Mamoru Sawahashi , Fumiyuki Adachi
发明人： Mamoru Sawahashi , Fumiyuki Adachi
IPC分类号： H04B1/10 , H04B1/16 , H04B1/30 , H04B1/707 , H04B7/005 , H04L27/08
CPC分类号： H04W52/52 , H04B1/1027 , H04B1/16 , H04B1/30 , H04B1/707
摘要： An automatic gain control apparatus of a spread spectrum signal receiver which can quickly follow distance variations, median variations, and instantaneous variations due to Rayleigh fading. An output of a variable gain amplifier 22 is quadrature-detected, the detected outputs are A/D converted, the digital output thereof are supplied to a despreading processor 34 through a digital level corrector 33, and the despreading output undergoes the instantaneous envelope detection by an instantaneous envelope detector 37. The envelope-detected signal is supplied to a symbol timing generator 38 which extracts data symbol timing component using a peak signal as a trigger, and a time window through which a desired signal enters is calculated from the symbol timing. Within the time window, the output of the instantaneous envelope detector 37 undergoes time integration by a level detector 43, and its output shifts the level of the digital level corrector 33, thereby making the output constant. The output of the level detector 43 is averaged over a few symbol length by a level detector 44 whose output controls the gain of the variable gain amplifier 22, thereby making its output constant.
摘要翻译： PCT No.PCT / JP94 / 01310 Sec。 371日期：1995年6月26日 102（e）日期1995年6月26日PCT 1994年8月9日PCT PCT。公开号WO95 / 05038 日期1995年2月16日一种扩频信号接收机的自动增益控制装置，可以快速跟踪距离变化，中值变化和瑞利衰落引起的瞬时变化。可变增益放大器22的输出被正交检测，检测的输出被A / D转换，其数字输出通过数字电平校正器33提供给解扩处理器34，解扩输出经过瞬时包络检测，由瞬时包络检测器37.将包络检测信号提供给符号定时发生器38，其使用峰值信号作为触发提取数据符号定时分量，并且从符号定时计算期望信号进入的时间窗。在时间窗口内，瞬时包络检测器37的输出由电平检测器43进行时间积分，其输出移动数字电平校正器33的电平，从而使输出恒定。电平检测器43的输出由电平检测器44在几个符号长度上进行平均，电平检测器44的输出控制可变增益放大器22的增益，从而使其输出恒定。

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