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公开(公告)号：US20110087948A1
公开(公告)日：2011-04-14
申请号：US12994367
申请日：2009-07-02
申请人： Yutaka Murakami , Shutai Okamura
发明人： Yutaka Murakami , Shutai Okamura
IPC分类号： H03M13/00
CPC分类号： H04L1/0041 , H03M13/1154 , H03M13/17 , H03M13/2703 , H03M13/2707 , H03M13/353 , H03M13/356 , H03M13/373 , H03M13/3761 , H03M13/6306 , H03M13/6356 , H04L1/00 , H04L1/08
摘要： A loss correction encoding device having an improved capability of loss correction using LDPC-CC is disclosed. In the loss correction encoding device (120), a rearranging unit (122) rearranges information data contained in n information packets according to the constraint length Kmax and the encoding rate (q−1)/q of a cheek polynomial of the loss correction code used in a loss correction encoding unit (123). Specifically, the rearranging unit (122) rearranges the information data in such a way that continuous Kmax×(q−1) pieces of information data after rearrangement are contained in different information packets. The rearranging unit (122) distributes the information data to information blocks from n information packets (n satisfies formula (1)). Kmax×(q−1)≦n (1)
摘要翻译： 公开了一种具有改进的使用LDPC-CC的损失校正能力的损失校正编码装置。 在丢失校正编码装置（120）中，重排单元（122）根据约束长度Kmax和丢失校正码的颊多项式的编码率（q-1）/ q重新排列包含在n个信息包中的信息数据 用于损失校正编码单元（123）。 具体地说，重新布置单元（122）重新排列信息数据，使得重排后的连续的Kmax×（q-1）个信息数据被包含在不同的信息包中。 重新布置单元（122）将信息数据分配给来自n个信息包（n满足公式（1））的信息块。 Kmax×（q-1）＆nlE; n（1）
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公开(公告)号：US20100008441A1
公开(公告)日：2010-01-14
申请号：US12375655
申请日：2007-07-31
CPC分类号： H04L1/005 , H03M13/11 , H03M13/27 , H03M13/2957 , H04B7/04 , H04L1/1829 , H04L25/03318 , H04L25/067 , H04L2025/03426
摘要： A multiantenna receiving device is provided to make it possible to cope with both improvement in error rate characteristic and simplification in structure. The multiantenna receiving device is comprised of soft judgement output units (520_A, 522_A, 524_B, 526_B) for carrying out a soft judgement of a modulation signal in accordance with signal point distances between a plurality of candidate signal points with respect to a plurality of multiplexed modulation signals and a receiving signal, decoding units (528_A, 528_B) for obtaining digital data of the modulation signals by using the judged results obtained by the soft judgement output units (520_A, 522_A, 524_B, 526_B), and signal point decreasing units (512_YA, 512_XA, 514_YA, 514_XA, 516_YB, 516_XB, 518_YB, 518_XB) for decreasing the number of the candidate signal points used in the soft judgement output units (520_A, 522_A, 524_B, 526_B) by recursively using a part of the digital data except self-modulation signals obtained by the decoding units (528_A, 528_B).
摘要翻译： 提供了一种多天线接收装置，以便能够应对错误率特性的提高和结构简化。 多天线接收装置包括软判断输出单元（520_A，522_A，524_B，526_B），用于根据多个候选信号点之间的信号点距离执行调制信号的软判断 调制信号和接收信号，用于通过使用由软判断输出单元（520_A，522_A，524_B，526_B）获得的判断结果获得调制信号的数字数据的解码单元（528_A，528_B）和信号点减少单元 512_YA，512_XA，514_YA，514_XA，516_YB，516_XB，518_YB，518_XB），用于通过递归地使用一部分数字数据来减少软判断输出单元（520_A，522_A，524_B，526_B）中使用的候选信号点的数量 除了由解码单元（528_A，528_B）获得的自调制信号之外。
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公开(公告)号：US08594242B2
公开(公告)日：2013-11-26
申请号：US13409034
申请日：2012-02-29
IPC分类号： H04L27/00
CPC分类号： H04L25/0204 , H04B7/0413 , H04B7/06 , H04B7/0626 , H04B7/0632 , H04B7/0671 , H04B7/0689 , H04B7/0697 , H04B7/082 , H04L1/0618 , H04L5/0023 , H04L5/003 , H04L5/0048 , H04L25/0206 , H04L27/04 , H04L27/06 , H04L27/12 , H04L27/14 , H04L27/18 , H04L27/2601 , H04L27/2602 , H04L27/2627 , H04L27/2649 , H04L27/2657 , H04L27/2659 , H04L27/2691 , H04L27/2695 , H04L69/22 , H04W52/52 , H04W72/0453
摘要： A method for receiving modulation signals includes receiving a plurality of multiplexed modulation signals each transmitted from multiple antennas of a communication partner, wherein each modulation signal includes a pilot symbol sequence consisting of plural pilot symbols used for demodulation. Each of the pilot symbol sequences is inserted at the same temporal points in the each modulation signal. The pilot symbol sequences are orthogonal to each other with zero cross correlation among the plurality of modulation signals, each pilot symbol having a non-zero amplitude, the quantity of the plural pilot symbols in each sequence being greater than the quantity of the plurality of transmitted modulation signals. The method further includes estimating a transmission path distortion of the each modulation signal based on the plurality of received multiplexed modulation signals; and demodulating the each modulation signal including the plurality of received multiplexed modulation signals using the transmission path distortion.
摘要翻译： 一种用于接收调制信号的方法包括接收从通信对方的多个天线发送的多个多路调制信号，其中每个调制信号包括由用于解调的多个导频符号组成的导频符号序列。 导频符号序列中的每一个在每个调制信号的相同的时间点被插入。 导频符号序列在多个调制信号之间以零互相关方式彼此正交，每个导频符号具有非零幅度，每个序列中的多个导频符号的数量大于多个发送的数量 调制信号。 该方法还包括基于多个接收的复用调制信号来估计每个调制信号的传输路径失真; 以及使用传输路径失真来解调包括多个接收的复用调制信号的每个调制信号。
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94.发明授权Transmitting apparatus, receiving apparatus, transmission method, and reception method 有权发送装置，接收装置，发送方法和接收方法公开(公告)号：US08095833B2
公开(公告)日：2012-01-10
申请号：US12199518
申请日：2008-08-27
CPC分类号： H04L1/0041 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L1/0039 , H04L1/0058 , H04L1/0079 , H04L1/0083 , H04L1/08 , H04L27/0008 , H04L27/0012 , H04L27/20 , H04L27/2608 , Y02D50/10
摘要： A transmission method includes generating a control information signal relating to control information of a data signal. A transmission frame is formed by repeating and discretely arranging the same control information signal. The data signal and the control information signal are transmitted using the transmission frame.
摘要翻译： 传输方法包括产生与数据信号的控制信息相关的控制信息信号。 通过重复和离散地布置相同的控制信息信号来形成传输帧。 使用发送帧发送数据信号和控制信息信号。
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公开(公告)号：US07953177B2
公开(公告)日：2011-05-31
申请号：US12757509
申请日：2010-04-09
CPC分类号： H04L27/3405 , H03F1/02 , H03F3/24 , H04B1/0475 , H04B2001/0416 , H04B2001/045 , H04L1/0003 , H04L27/2082 , H04L27/2601 , H04L27/34 , H04L27/3494 , H04L2203/00
摘要： A radio communication apparatus that is capable of switching modulation schemes. The radio communication apparatus includes a QPSK modulation signal generator, a QAM modulation signal generator, a transmission radio, and a common transmission power amplifier. The QPSK modulation signal generator modulates transmission data by a QPSK modulation scheme and outputs a QPSK modulation signal. The QAM modulation signal generator modulates transmission data by a QAM scheme and outputs a QAM modulation signal. The transmission radio receives the QPSK modulation signal or the QAM modulation signal and outputs a transmission signal, which is amplified by the common transmission power amplifier. The QPSK modulation signal generator and the QAM modulation signal generator each output signal component that make an average transmission power of the QAM modulation signal in the common transmission power amplifier smaller than an average transmission power of the QPSK modulation signal in the common transmission power amplifier.
摘要翻译： 一种能够切换调制方案的无线通信装置。 无线通信装置包括QPSK调制信号发生器，QAM调制信号发生器，发送无线电和公共发送功率放大器。 QPSK调制信号生成器通过QPSK调制方式来调制发送数据并输出QPSK调制信号。 QAM调制信号发生器通过QAM方式来调制发送数据并输出QAM调制信号。 发送无线电接收QPSK调制信号或QAM调制信号，并输出由公共发送功率放大器放大的发送信号。 QPSK调制信号发生器和QAM调制信号发生器使公共发送功率放大器中的QAM调制信号的平均发送功率小于公共发送功率放大器中的QPSK调制信号的平均发送功率的各输出信号分量。
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公开(公告)号：US07515714B2
公开(公告)日：2009-04-07
申请号：US10502048
申请日：2003-02-27
IPC分类号： H04F9/00
CPC分类号： H04B1/7113 , H04B1/7115 , H04K1/00 , H04L9/0858 , H04L2209/60 , H04L2209/80 , H04W12/04
摘要： A communication apparatus includes a reference signal generating section, a transmitting section, a propagation estimating section, a first data acquiring section, and a decoding section. The reference signal generating section generates a first reference signal to enable a communicating party to estimate a propagation environment. The transmitting section transmits the first reference signal. The propagation estimating section estimates a first propagation estimation value of the propagation environment using a second reference signal transmitted from the communicating party. The first data acquiring section generates first data using the first propagation estimation value. The decoding section decodes a transmission signal encoded using a second propagation estimation value that is estimated by the communicating party using the first reference signal, to obtain second data using the first data.
摘要翻译： 通信装置包括参考信号产生部分，发送部分，传播估计部分，第一数据获取部分和解码部分。 参考信号产生部分生成第一参考信号以使通信方能够估计传播环境。 发送部发送第一参考信号。 传播估计部使用从通信对方发送的第二参考信号来估计传播环境的第一传播估计值。 第一数据获取部使用第一传播估计值来生成第一数据。 解码部分使用由第一参考信号由通信方估计的第二传播估计值来编码的传输信号，以使用第一数据来获得第二数据。
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公开(公告)号：US07362824B1
公开(公告)日：2008-04-22
申请号：US09240632
申请日：1999-02-01
IPC分类号： H04L27/20
CPC分类号： H04L27/0008 , H04L25/0232 , H04L27/34
摘要： An input digital signal is periodically and alternately subjected to first modulation and second modulation, being thereby converted into a pair of a baseband I signal and a baseband Q signal. The first modulation and the second modulation are different from each other. The pair of the baseband I signal and the baseband Q signal are outputted. The first modulation may be at least 8-signal-point modulation while the second modulation may be phase shift keying.
摘要翻译： 输入数字信号周期性地交替进行第一调制和第二调制，从而转换成一对基带I信号和基带Q信号。 第一调制和第二调制彼此不同。 输出一对基带I信号和基带Q信号。 第一调制可以是至少8信号点调制，而第二调制可以是相移键控。
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公开(公告)号：US07280611B2
公开(公告)日：2007-10-09
申请号：US10410323
申请日：2003-04-09
CPC分类号： H04L27/368 , H03F1/3247 , H03F1/3282 , H03F1/34 , H03F3/24 , H03F2201/3233 , H04B7/15535 , H04B2001/0433
摘要： A nonlinear distortion compensating device splits its operation into two processes. One is a compensation & amplification process for providing a receipt signal with a distortion compensating calculation and amplification before outputting the signal with phase and amplitude compensated. The other is an environmentally adapting process for modulating the signal demodulated from the input signal. Then in this process, a distortion estimating updater estimates a distortion amount using the modulated signal and a feed back signal of parts of the output supplied from the distortion compensating calculator, and updates a distortion compensating coefficient stored in the distortion compensating calculator.
摘要翻译： 非线性失真补偿装置将其操作分为两个过程。 一个是补偿和放大过程，用于在输出具有相位和幅度补偿的信号之前提供具有失真补偿计算和放大的接收信号。 另一种是用于调制从输入信号解调的信号的环境适应过程。 然后在该过程中，失真估计更新器使用调制信号和从失真补偿计算器提供的输出部分的反馈信号来估计失真量，并且更新存储在失真补偿计算器中的失真补偿系数。
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公开(公告)号：US06608868B1
公开(公告)日：2003-08-19
申请号：US09482892
申请日：2000-01-14
IPC分类号： H04L2302
CPC分类号： H04L7/04 , H04L7/06 , H04L27/0008 , H04L27/206 , H04L27/34 , H04L27/3405 , H04L27/3455 , H04L2027/0024 , H04L2027/0087 , H04L2027/0093
摘要： In a multivalue modulation type with one pilot symbol inserted for every 3 or more symbols, signal points of each one symbol immediately before and after a pilot symbol are modulated using a modulation type different from that for pilot symbols. In this way, it is possible to suppress deterioration of the accuracy in estimating the reference phase and amount of frequency offset by pilot symbols and improve the bit error rate characteristic in the signal to noise ratio in quasi-coherent detection with symbols whose symbol synchronization is not completely established.
摘要翻译： 在每3个或更多符号插入一个导频符号的多值调制类型中，使用与导频符号不同的调制类型来调制紧接在导频符号之前和之后的每个符号的信号点。 以这种方式，可以抑制通过导频符号估计基准相位和频率偏移量的精度的劣化，并且通过符号同步为符号的符号来改善准相干检测中的信噪比中的误码率特性 不完全成立
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100.发明授权Communication method, and transmitting apparatus and receiving apparatus using that communication method 有权通信方法，以及使用该通信方法的发送装置和接收装置公开(公告)号：US08400996B2
公开(公告)日：2013-03-19
申请号：US13433577
申请日：2012-03-29
CPC分类号： H04L5/0048 , H04B7/0413 , H04B7/0417 , H04B7/0613 , H04B7/0837 , H04J11/00 , H04L5/0007 , H04L25/0204 , H04L25/0224 , H04L27/2647 , H04L27/2657 , H04L27/2662 , H04W72/0453
摘要： A transmission apparatus includes a plurality of antennas and a frame configurator that selects, in a first unit time either a first transmitting method which transmits a modulated signal from at least one of the plurality of antennas, or a second transmitting method which transmits a plurality of modulated signals from the plurality of antennas, for a first carrier group arranged for a first terminal and either the first transmitting method or the second transmitting method for a second carrier group arranged for a second terminal. The frame configurator selects, in a second unit time either the first transmitting method or the second transmitting method for the first carrier group arranged for a third terminal and either the first transmitting method or the second transmitting method for the second carrier group arranged for a fourth terminal, wherein each of carrier groups includes one or more sub-carriers.
摘要翻译： 发送装置包括多个天线和帧配置器，其在第一单位时间中选择发送来自所述多个天线中的至少一个的调制信号的第一发送方法，或者发送多个天线的第二发送方法 针对布置用于第一终端的第一载波组，以及为第二终端配置的第二载波组的第一发射方法或第二发射方法，来自多个天线的调制信号。 帧配置器在第二单位时间中选择用于第三终端的第一载波组的第一发送方法或第二发送方法，以及用于第四载波组的第一发送方法或第二发送方法， 终端，其中每个载波组包括一个或多个子载波。
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