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公开(公告)号：US08976643B2
公开(公告)日：2015-03-10
申请号：US13780869
申请日：2013-02-28
CPC分类号： H04L5/0058 , H04B1/692 , H04L1/0001 , H04L1/0003 , H04L5/0007 , H04L5/0021 , H04L5/006 , H04L5/0064 , H04L5/0075 , H04L5/0092 , H04L27/0008 , H04L27/2601 , H04W72/0453
摘要： A wireless communication method for a transmission apparatus that transmits an OFDM (orthogonal frequency division multiplexing) signal using a communication band, which comprises a plurality of subcarrier groups each including a plurality of subcarriers. The method includes specifying which subcarrier group and how many subcarriers are to be used to transmit the OFDM signal, determining a configuration of a transmission frame, generating the OFDM signal by mapping data symbols according to the determined configuration of the transmission frame, and transmitting the generated OFDM signal.
摘要翻译： 一种用于使用通信频带发送OFDM（正交频分复用）信号的发送装置的无线通信方法，所述通信频带包括多个子载波组，每个副载波组包括多个子载波。 该方法包括：指定哪个子载波组和多少个子载波将用于发送OFDM信号，确定发送帧的配置，通过根据确定的发送帧的配置映射数据符号来生成OFDM信号，以及发送 生成的OFDM信号。
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公开(公告)号：US20140226760A1
公开(公告)日：2014-08-14
申请号：US14256797
申请日：2014-04-18
IPC分类号： H04L27/06
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 of generating modulation signals is disclosed including generally three steps. A plurality of modulation signals are generated, each of which is to be transmitted from a different one of a plurality of antennas in an identical frequency band, wherein each modulation signal includes a pilot symbol sequence including a plurality of pilot symbols used for demodulation. Each of the pilot symbol sequences is inserted at the same temporal point in each modulation signal, wherein the pilot symbol sequences are orthogonal to each other with zero mutual correlation among the plurality of modulation signals, each pilot symbol having a non-zero amplitude, the quantity of the plurality of pilot symbols in each sequence being greater than the quantity of the plurality of modulation signals to be transmitted. The plurality of modulation signals each including different transmission data and one of the pilot symbol sequences are output to the antennas.
摘要翻译： 公开了一种产生调制信号的方法，一般包括三个步骤。 产生多个调制信号，每个调制信号将从相同频带中的多个天线中的不同天线发射，其中每个调制信号包括导频符号序列，导频符号序列包括用于解调的多个导频符号。 每个导频符号序列在每个调制信号中的相同时间点被插入，其中导频符号序列在多个调制信号之间以零相互相互正交，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要发送的多个调制信号的数量。 每个包括不同传输数据和导频符号序列中的一个的多个调制信号被输出到天线。
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公开(公告)号：US08798193B2
公开(公告)日：2014-08-05
申请号：US13961528
申请日：2013-08-07
IPC分类号： H04L27/00
CPC分类号： H04B7/0413 , H04B7/0608 , H04B7/0613 , H04B7/0689 , H04B7/0697 , H04L1/06
摘要： Of any one of a transmission method X of transmitting modulated signal A and modulated signal B including the same data from a plurality of antennas and a transmission method Y of transmitting modulated signal A and modulated signal B having different data from the plurality of antennas, a base station apparatus does not change the transmission method during data transmission and changes only the modulation scheme. The base station apparatus transmits modulated signal A and modulated signal B to a communication terminal apparatus using the determined transmission method and modulation scheme. In this way, it is possible to improve data transmission efficiency when transmitting data using the plurality of antennas.
摘要翻译： 从多个天线发送调制信号A和包含相同数据的调制信号B的发送方法X和从多个天线发送具有不同数据的调制信号A和调制信号B的发送方式Y中的任一种， 基站装置在数据发送期间不改变发送方式，只改变调制方式。 基站装置使用所确定的发送方法和调制方式向调制信号A和调制信号B发送到通信终端装置。 以这种方式，可以在使用多个天线发送数据时提高数据传输效率。
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4.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：US09026877B2
公开(公告)日：2015-05-05
申请号：US13957748
申请日：2013-08-02
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： In a communication system in which propagation path error tolerance is improved by switching the modulation method or error correction method adaptively according to the state of the propagation path, signals MX, MY, CX, and CY indicating the modulation method and error correction method used by the transmitting side are transmitted arranged at discrete locations within the same frame. By this means, the possibility of discretely arranged signals MX and MY, or CX and CY, both degrading is made low even if the transmit signal experiences fading or propagation path fluctuations. As a result, it is possible for the modulation method information signal and/or error correction method information signal to be restored correctly on the receiving side.
摘要翻译： 在通过根据传播路径的状态自适应地切换调制方法或纠错方法来提高传播路径误差容忍的通信系统中，指示调制方式和误差校正方法的信号MX，MY，CX和CY表示由 发送侧被发送布置在同一帧内的离散位置处。 通过这种方式，即使发射信号经历衰落或传播路径波动，也会使离散布置的信号MX和MY，或CX和CY都降级的可能性变低。 结果，可以在接收侧正确地恢复调制方法信息信号和/或纠错方法信息信号。
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5.发明授权Transmitting apparatus, transmitting method, receiving apparatus and receiving method 有权发送装置，发送方法，接收装置和接收方法公开(公告)号：US08767864B2
公开(公告)日：2014-07-01
申请号：US13964993
申请日：2013-08-12
IPC分类号： H04B7/02 , H04L27/34 , H04L1/08 , H04L1/06 , H04L5/00 , H04B7/04 , H04L1/00 , H04B7/06 , H04W52/42
CPC分类号： H04L27/0008 , H04B7/0413 , H04B7/0417 , H04B7/0669 , H04L1/0006 , H04L1/0026 , H04L1/06 , H04L1/0618 , H04L1/08 , H04L5/0046 , H04L27/3405 , H04W52/42
摘要： Modulated signal A is transmitted from a first antenna, and modulated signal B is transmitted from a second antenna. As modulated signal B, modulated symbols S2(i) and S2(i+1) obtained from different data are transmitted at time i and time i+1 respectively. In contrast, as modulated signal A, modulated symbols S1(i) and S1(i)′ obtained by changing the signal point arrangement of the same data are transmitted at time i and time i+1 respectively. As a result the reception quality can be changed intentionally at time i and time i+1, and therefore using the demodulation result of modulated signal A of a time when the reception quality is good enables both modulated signals A and B to be demodulated with good error rate performances.
摘要翻译： 从第一天线发送调制信号A，从第二天线发送调制信号B. 作为调制信号B，分别在时间i和时间i + 1发送从不同数据获得的调制符号S2（i）和S2（i + 1）。 相反，作为调制信号A，分别在时间i和时间i + 1发送通过改变相同数据的信号点排列获得的调制符号S1（i）和S1（i）'。 结果，可以在时间i和时间i + 1有意地改变接收质量，因此当接收质量好的时候使用调制信号A的解调结果使得调制信号A和B能够被良好地解调 错误率表现。
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公开(公告)号：US20130322564A1
公开(公告)日：2013-12-05
申请号：US13961528
申请日：2013-08-07
IPC分类号： H04B7/06
CPC分类号： H04B7/0413 , H04B7/0608 , H04B7/0613 , H04B7/0689 , H04B7/0697 , H04L1/06
摘要： Of any one of a transmission method X of transmitting modulated signal A and modulated signal B including the same data from a plurality of antennas and a transmission method Y of transmitting modulated signal A and modulated signal B having different data from the plurality of antennas, a base station apparatus does not change the transmission method during data transmission and changes only the modulation scheme. The base station apparatus transmits modulated signal A and modulated signal B to a communication terminal apparatus using the determined transmission method and modulation scheme. In this way, it is possible to improve data transmission efficiency when transmitting data using the plurality of antennas.
摘要翻译： 从多个天线发送调制信号A和包含相同数据的调制信号B的发送方法X和从多个天线发送具有不同数据的调制信号A和调制信号B的发送方式Y中的任一种， 基站装置在数据发送期间不改变发送方式，只改变调制方式。 基站装置使用所确定的发送方法和调制方式向调制信号A和调制信号B发送到通信终端装置。 以这种方式，可以在使用多个天线发送数据时提高数据传输效率。
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7.发明授权公开(公告)号：US10578713B2
公开(公告)日：2020-03-03
申请号：US15166165
申请日：2016-05-26
发明人： Hidekuni Yomo , Akihiko Matsuoka
IPC分类号： G01S7/40 , G01S13/93 , G01S13/931
摘要： A processor generates first position information on a relative position between a camera and a radar, acquires, from the radar, second position information on a relative position between the radar and a reflector, the second position information being generated by using an arrival direction of the radar transmission wave, and calculates a displacement amount by comparing the first position information and the second position information with each other.
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公开(公告)号：US20140177619A1
公开(公告)日：2014-06-26
申请号：US14195508
申请日：2014-03-03
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 transmission apparatus includes a plurality of orthogonal frequency division multiplexing (OFDM) modulation signal generators, which generate a first OFDM modulation signal and a second OFDM modulation signal. The transmission apparatus also includes a transmitter that transmits the first OFDM modulation signal from a first antenna and the second OFDM modulation signal from a second antenna, in an identical frequency band. A reception apparatus is provided, which includes a plurality of antennas that receive a plurality of OFDM modulation signals; a plurality of OFDM demodulators that transform the plurality of OFDM modulation signals to a plurality of reception signals using Fourier transform; an estimator that outputs a distortion estimation signal using one or more symbols for demodulation included in the plurality of reception signals; and a demodulator that compensates for distortion of the reception signals using the distortion estimation signal and demodulates a data symbol included in the reception signals.
摘要翻译： 发送装置包括生成第一OFDM调制信号和第二OFDM调制信号的多个正交频分复用（OFDM）调制信号发生器。 发送装置还包括在相同频带中从第一天线发送第一OFDM调制信号和来自第二天线的第二OFDM调制信号的发送器。 提供了一种接收装置，其包括接收多个OFDM调制信号的多个天线; 多个OFDM解调器，其使用傅里叶变换将所述多个OFDM调制信号变换为多个接收信号; 估计器，其使用所述多个接收信号中包含的用于解调的一个或多个符号来输出失真估计信号; 以及解调器，其使用失真估计信号来补偿接收信号的失真，并且解调包含在接收信号中的数据符号。
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公开(公告)号：US08744005B2
公开(公告)日：2014-06-03
申请号：US14019346
申请日：2013-09-05
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 of generating modulation signals is disclosed including generally three steps. A plurality of modulation signals are generated, each of which is to be transmitted from a different one of a plurality of antennas in an identical frequency band, wherein each modulation signal includes a pilot symbol sequence including a plurality of pilot symbols used for demodulation. Each of the pilot symbol sequences is inserted at the same temporal point in each modulation signal, wherein the pilot symbol sequences are orthogonal to each other with zero mutual correlation among the plurality of modulation signals, each pilot symbol having a non-zero amplitude, the quantity of the plurality of pilot symbols in each sequence being greater than the quantity of the plurality of modulation signals to be transmitted. The plurality of modulation signals each including different transmission data and one of the pilot symbol sequences are output to the antennas.
摘要翻译： 公开了一种产生调制信号的方法，一般包括三个步骤。 产生多个调制信号，每个调制信号将从相同频带中的多个天线中的不同天线发射，其中每个调制信号包括导频符号序列，导频符号序列包括用于解调的多个导频符号。 每个导频符号序列在每个调制信号中的相同时间点被插入，其中导频符号序列在多个调制信号之间以零相互相互正交，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要发送的多个调制信号的数量。 每个包括不同传输数据和导频符号序列中的一个的多个调制信号被输出到天线。
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公开(公告)号：US08705656B2
公开(公告)日：2014-04-22
申请号：US13865876
申请日：2013-04-18
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 transmission apparatus includes a plurality of orthogonal frequency division multiplexing (OFDM) modulation signal generators, which generate a first OFDM modulation signal and a second OFDM modulation signal. The transmission apparatus also includes a transmitter that transmits the first OFDM modulation signal from a first antenna and the second OFDM modulation signal from a second antenna, in an identical frequency band. A reception apparatus is provided, which includes a plurality of antennas that receive a plurality of OFDM modulation signals; a plurality of OFDM demodulators that transform the plurality of OFDM modulation signals to a plurality of reception signals using Fourier transform; an estimator that outputs a distortion estimation signal using one or more symbols for demodulation included in the plurality of reception signals; and a demodulator that compensates for distortion of the reception signals using the distortion estimation signal and demodulates a data symbol included in the reception signals.
摘要翻译： 发送装置包括生成第一OFDM调制信号和第二OFDM调制信号的多个正交频分复用（OFDM）调制信号发生器。 发送装置还包括在相同频带中从第一天线发送第一OFDM调制信号和来自第二天线的第二OFDM调制信号的发送器。 提供了一种接收装置，其包括接收多个OFDM调制信号的多个天线; 多个OFDM解调器，其使用傅里叶变换将所述多个OFDM调制信号变换为多个接收信号; 估计器，其使用所述多个接收信号中包含的用于解调的一个或多个符号来输出失真估计信号; 以及解调器，其使用失真估计信号来补偿接收信号的失真，并且解调包含在接收信号中的数据符号。
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