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41.发明授权公开(公告)号：US06853631B1
公开(公告)日：2005-02-08
申请号：US09415997
申请日：1999-10-12
CPC分类号： H04J13/0003 , H04B1/707 , H04B2201/70701 , H04L27/34
摘要： A phase θI1, . . . , θQ1, . . . uniquely determined for each channel is assigned to a carrier for each channel used when data I1 . . . , Q1, . . . , to be distributed among different channels are modulated. By appropriately modifying the phase of a carrier for each channel, signal points can be located in a narrower region than in a conventional region, and thereby the difference in amplitude between a signal point with a minimum amplitude and a signal point with a maximum amplitude can be reduced. Thus, the amplitude range of a signal to be covered by an amplifier for transmitting a transmission signal is reduced, and thereby an amplifier with a linearity that is not high can be used for the amplifier. Accordingly, even if the number of signal points increase, there is no need to use a large high-power amplifier, and thereby the small power and small size of the apparatus can be realized.
摘要翻译： A相位θ1， 。 。 ，thetaQ1，。 。 。 对于每个信道唯一确定的每个信道被分配给用于数据I1时使用的每个信道的载波。 。 。 ，Q1。 。 。 ，被分配在不同的信道之间进行调制。 通过适当地修改每个通道的载波相位，信号点可以位于比常规区域更窄的区域中，从而具有最小振幅的信号点与具有最大振幅的信号点之间的幅度差可以 减少 因此，用于传输发送信号的放大器要覆盖的信号的振幅范围被减小，因此放大器可以使用线性度不高的放大器。 因此，即使信号点的数量增加，也不需要使用大的大功率放大器，从而能够实现装置的小功率和小型化。
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公开(公告)号：US06198731B1
公开(公告)日：2001-03-06
申请号：US08995252
申请日：1997-12-19
IPC分类号： H04B7216
CPC分类号： H04B1/707 , H04B7/2628
摘要： There are disclosed a radiocommunication apparatus and a radiocommunication system. There are provided a receiving section capable of receiving a plurality of types of signals which have been spread through use of different spread code information according to a CDMA scheme in a transmitting-side radiocommunication apparatuses; and a spread demodulation section which carries out despread processing for the common signal portions of the plurality of types of signals received by the receiving section through use of a composite spread code formed from a plurality of spread codes. Accordingly, it becomes possible to significantly improve the quality of received signals.
摘要翻译： 公开了一种无线电通信装置和无线电通信系统。 提供了一种能够在发送侧无线电通信装置中接收根据CDMA方案通过使用不同扩展码信息而扩展的多种类型的信号的接收部分; 以及扩展解调部分，通过使用由多个扩展码形成的复合扩展码，对由接收部分接收的多种类型的信号的公共信号部分进行解扩处理。 因此，可以显着提高接收信号的质量。
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公开(公告)号：US06826169B1
公开(公告)日：2004-11-30
申请号：US09615862
申请日：2000-07-13
IPC分类号： H04L512
CPC分类号： H04J13/0003 , H04B1/707 , H04B2201/70706 , H04J13/0051 , H04J13/18
摘要： A code multiplexing transmitting apparatus spread-spectrum modulates transmission data of a plurality of channels by spreading codes that differ from one another, combines the spread-spectrum signals of each of the channels and transmits the resultant spread-spectrum modulated signal. A spread-spectrum modulating unit for each channel includes a phase shifter for shifting, by a predetermined angle channel by channel, the phase of a position vector of the spread-spectrum modulated signal of each channel. As the result of such phase control, the phases of pilot signal portions of the spread-spectrum modulated signals of the respective channels are shifted relative to one another so that the peak values of the code-multiplexed signal can be suppressed.
摘要翻译： 扩频编码多路复用发送装置通过扩展彼此不同的码来对多个信道的发送数据进行扩频调制，合成各个信道的扩频信号，并发送合成的扩频调制信号。 用于每个通道的扩频调制单元包括移相器，用于以预定的角度逐个通道移位每个通道的扩频调制信号的位置矢量的相位。 作为这种相位控制的结果，各通道的扩频调制信号的导频信号部分的相位彼此相对移位，从而可以抑制码复用信号的峰值。
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公开(公告)号：US6058138A
公开(公告)日：2000-05-02
申请号：US870606
申请日：1997-06-06
CPC分类号： H04B1/7115 , H04B7/0854 , H04L1/06 , H04B1/709
摘要： A radio receiver includes a plurality of demodulating units for demodulating a received radio wave received via a plurality of paths so as to produce respective demodulated signals, and combining units for executing a combination process of synchronizing and combining the demodulated signals produced by the plurality of demodulating units, the combining units correlating the demodulated signals produced by the plurality of demodulating units and excluding from a combination process a demodulated signal that meets a predetermined condition based on a predetermined algorithm.
摘要翻译： 无线接收机包括多个解调单元，用于解调通过多个路径接收的接收的无线电波，以便产生各自的解调信号;以及组合单元，用于执行同步和组合由多个解调产生的解调信号 单元，所述组合单元将由所述多个解调单元产生的解调信号相关，并且从组合处理除了基于预定算法的满足预定条件的解调信号。
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公开(公告)号：US6028894A
公开(公告)日：2000-02-22
申请号：US923839
申请日：1997-09-04
CPC分类号： H04B1/1027 , H04B17/21 , H04B17/336 , H04L1/20 , H04W52/24 , H04W52/08
摘要： SIR measurement for measuring S/N ratio, which is the ratio of a desired signal power to noise power, or S/I ratio, which is the ratio of desired signal power to interference signal power, uses a signal-point position altering unit for taking absolute values of an I component (in-phase component) and Q component (quadrature component) of a received signal to convert the received signal to a signal in the first quadrant of an I-Q orthogonal coordinate system, and for squaring the average value of the converted signal to obtain first average power (desired power) S, a received-power arithmetic unit for calculating the average value of the square of the received signal to obtain second average power, and for subtracting the desired power S from the received power to obtain noise power or interference power I, and a SIR arithmetic unit for calculating S/N ratio or S/I ratio from the desired signal power S and noise power or interference signal power I, and for outputting the ratio calculated.
摘要翻译： 作为所需信号功率与噪声功率的比值的S / N比的SIR测量值或作为期望信号功率与干扰信号功率之比的S / I比使用信号点位置改变单元 将接收信号的I分量（同相分量）和Q分量（正交分量）的绝对值转换为IQ正交坐标系的第一象限中的信号，并将平均值 转换后的信号获得第一平均功率（期望功率）S，接收功率算术单元，用于计算接收信号的平方的平均值以获得第二平均功率，并且从接收功率中减去所需功率S 获得噪声功率或干扰功率I，以及用于根据期望信号功率S和噪声功率或干扰信号功率I计算S / N比或S / I比的SIR算术单元，并且用于输出比率计算 ed。
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公开(公告)号：US08605815B2
公开(公告)日：2013-12-10
申请号：US12499270
申请日：2009-07-08
IPC分类号： H04L25/03
CPC分类号： H04B1/0475 , H03F1/3247 , H03F3/24
摘要： A delay amount estimating apparatus includes a delay value search section that searches for a first delay value smaller than a delay setting value at which a given correlation value between an input signal and a feedback signal is provided, and also for a second delay value greater than the delay setting value, the feedback signal coming from a signal processing apparatus that applies signal processing on the input signal, wherein respective correlation values of the first delay value and the second delay value satisfy a given condition; and a delay estimating section that estimates a delay amount of the feedback signal relative to the input signal based on the first delay value and the second delay value.
摘要翻译： 延迟量估计装置包括延迟值搜索部分，其搜索小于提供输入信号和反馈信号之间的给定相关值的延迟设定值的第一延迟值，以及大于 延迟设定值，来自对输入信号进行信号处理的信号处理装置的反馈信号，其中第一延迟值和第二延迟值的各自的相关值满足给定条件; 以及延迟估计部，其基于所述第一延迟值和所述第二延迟值，估计所述反馈信号相对于所述输入信号的延迟量。
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公开(公告)号：US08442157B2
公开(公告)日：2013-05-14
申请号：US12794124
申请日：2010-06-04
申请人： Hiroyoshi Ishikawa , Kazuo Nagatani , Hajime Hamada , Nobukazu Fudaba , Yuichi Utsunomiya , Takeshi Ohba , Hideharu Shako , Yasuhito Funyu
发明人： Hiroyoshi Ishikawa , Kazuo Nagatani , Hajime Hamada , Nobukazu Fudaba , Yuichi Utsunomiya , Takeshi Ohba , Hideharu Shako , Yasuhito Funyu
IPC分类号： H04B1/38
CPC分类号： H04L27/2337
摘要： A wireless apparatus includes: an A/D converter which samples an in-phase signal component and a quadrature signal component from a quadrature-modulated signal of analog form alternately; a digital quadrature demodulation unit which applies digital quadrature demodulation to an output signal of the A/D converter and outputs an in-phase signal and a quadrature signal; and an error detection unit which, based on the in-phase and quadrature signals output from the digital quadrature demodulation unit, detects a time difference error between the sample timing of the in-phase signal component and the sample timing of the quadrature signal component.
摘要翻译： 无线装置包括：A / D转换器，其交替地从模拟形式的正交调制信号中采样同相信号分量和正交信号分量; 数字正交解调单元，对A / D转换器的输出信号进行数字正交解调，并输出同相信号和正交信号; 以及误差检测单元，其基于从数字正交解调单元输出的同相和正交信号，检测同相信号分量的采样定时与正交信号分量的采样定时之间的时差误差。
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公开(公告)号：US08254857B2
公开(公告)日：2012-08-28
申请号：US12874453
申请日：2010-09-02
IPC分类号： H01Q11/12
CPC分类号： H03F1/0222 , H03F1/32 , H03F3/189 , H03F3/24 , H03F2200/102 , H03F2200/504
摘要： A radio communication device includes a power amplifier to amplify a transmit signal, a control unit to generate a voltage control signal for defining power to be supplied to the power amplifier in accordance with a conversion curve expressed using a polynomial series based on an envelope signal obtained from the transmit signal and determine the polynomial series based on an efficiency of the power amplifier, and a power source unit to supply the power to the power amplifier based on the voltage control signal, wherein the control unit divides an amplitude range of the envelope signal on the conversion curve into a plurality of sections and determines the polynomial series based on at least one of the plurality of sections.
摘要翻译： 一种无线电通信装置，包括放大发射信号的功率放大器，控制单元，根据获得的包络信号，根据使用多项式序列表示的转换曲线，产生用于定义要提供给功率放大器的功率的电压控制信号 根据所述发送信号，根据所述功率放大器的效率确定所述多项式系列;以及电源单元，其基于所述电压控制信号向所述功率放大器供电，其中，所述控制单元将所述包络信号的幅度范围 将所述转换曲线转换成多个部分，并且基于所述多个部分中的至少一个来确定所述多项式序列。
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公开(公告)号：US20110053532A1
公开(公告)日：2011-03-03
申请号：US12874453
申请日：2010-09-02
IPC分类号： H04W88/02
CPC分类号： H03F1/0222 , H03F1/32 , H03F3/189 , H03F3/24 , H03F2200/102 , H03F2200/504
摘要： A radio communication device includes a power amplifier to amplify a transmit signal, a control unit to generate a voltage control signal for defining power to be supplied to the power amplifier in accordance with a conversion curve expressed using a polynomial series based on an envelope signal obtained from the transmit signal and determine the polynomial series based on an efficiency of the power amplifier, and a power source unit to supply the power to the power amplifier based on the voltage control signal, wherein the control unit divides an amplitude range of the envelope signal on the conversion curve into a plurality of sections and determines the polynomial series based on at least one of the plurality of sections.
摘要翻译： 一种无线电通信装置，包括放大发射信号的功率放大器，控制单元，根据获得的包络信号，根据使用多项式序列表示的转换曲线，产生用于定义要提供给功率放大器的功率的电压控制信号 根据所述发送信号，根据所述功率放大器的效率确定所述多项式系列;以及电源单元，其基于所述电压控制信号向所述功率放大器供电，其中，所述控制单元将所述包络信号的幅度范围 将所述转换曲线转换成多个部分，并且基于所述多个部分中的至少一个来确定所述多项式序列。
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公开(公告)号：US20110053531A1
公开(公告)日：2011-03-03
申请号：US12850998
申请日：2010-08-05
IPC分类号： H04W88/02
CPC分类号： H03G3/3036 , H04B2001/0416
摘要： A disclosed transmission device includes a voltage control signal generating unit configured to generate a first voltage control signal from a transmission signal, an amplifier configured to amplify the transmission signal in response to the first voltage control signal, a first timing adjusting unit configured to adjust a control timing for the first voltage control signal, and a control timing setting unit configured to set the control timing adjusted by the first timing adjusting unit based on the output signal from the amplifier and the transmission signal.
摘要翻译： 所公开的发送装置包括：电压控制信号生成部，被配置为从发送信号生成第一电压控制信号，被配置为响应于第一电压控制信号放大发送信号的放大器;第一定时调整部， 第一电压控制信号的控制定时，以及控制定时设定单元，被配置为基于来自放大器的输出信号和发送信号来设定由第一定时调整单元调整的控制定时。
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