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公开(公告)号：US20100148828A1
公开(公告)日：2010-06-17
申请号：US12577019
申请日：2009-10-09
CPC分类号： H04L27/2614 , H04B2201/70706 , H04L27/0008 , H04L27/2623
摘要： A technique wherein when signals, the modulation schemes of which are different, are to be combined, performing the peak suppression using amounts of the respective modulation schemes can effectively reduce the PAPR of a resulting combined signal. A peak suppressing method for use in a peak suppressing circuit, which combines input signals of different modulation schemes in a time domain to provide a combined signal, comprises detecting, as a peak, that portion of the combined signal which excesses a threshold value to generate a peak signal in accordance with the peak; converting the peak signal into a frequency domain signal and then dividing it into signals originating from the input signals to use these input-signal-originated signals as respective suppression signals; and adding, to the input signals, the suppression signals having different suppression amounts for the respective modulation schemes, thereby performing the peak suppression.
摘要翻译： 一种技术，其中当要组合其调制方案不同的信号时，使用各个调制方案的量执行峰值抑制可以有效地减少所得到的组合信号的PAPR。 在峰值抑制电路中使用的峰值抑制方法，其组合在时域中的不同调制方案的输入信号以提供组合信号，包括检测超过阈值以产生的组合信号的那部分作为峰值 根据峰值的峰值信号; 将峰值信号转换为频域信号，然后将其分为来自输入信号的信号，以将这些输入信号发起的信号用作相应的抑制信号; 并且向输入信号添加对于各个调制方案具有不同抑制量的抑制信号，由此执行峰值抑制。
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公开(公告)号：US07664473B2
公开(公告)日：2010-02-16
申请号：US11589898
申请日：2006-10-31
申请人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Hajime Hamada , Kazuo Nagatani , Yasuhito Funyu , Norio Tozawa , Tokuro Kubo
发明人： Hiroyoshi Ishikawa , Nobukazu Fudaba , Hajime Hamada , Kazuo Nagatani , Yasuhito Funyu , Norio Tozawa , Tokuro Kubo
CPC分类号： H03F1/0266 , H03F1/0205 , H03F1/0244 , H03F1/32 , H03F3/24
摘要： A bias control signal generation unit detects ON and OFF of a transmission signal input to an amplifier and having a property of a burst according to burst information. The bias control signal generation unit controls a bias voltage to be applied to an amplifier such that an idle current flowing through the amplifier can be flowing in a larger amount in a transmission OFF period, and can return to a normal level in a transmission ON period.
摘要翻译： 偏置控制信号生成单元根据突发信息检测输入到放大器的发送信号的接通和关断，并具有突发的性质。 偏置控制信号发生单元控制要施加到放大器的偏置电压，使得流过放大器的空闲电流可以在传输关闭时段内以较大的量流动，并且可以在传输开启周期中恢复到正常电平 。
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公开(公告)号：US20080043869A1
公开(公告)日：2008-02-21
申请号：US11878588
申请日：2007-07-25
IPC分类号： H04K1/10
CPC分类号： H04L27/2614 , H03F1/32 , H03F3/19 , H04B1/0475 , H04L27/2623
摘要： In a configuration where systems C and D having different reception quality requirements are present, a peak suppressor generates a replica of a signal from system C combined together with a signal from system D before peak suppression. Based on the replica, system specific peak suppressing units respectively perform peak suppression on signals of each system according to the respective reception quality requirements of each system. A combining unit combines the peak-suppressed signals of each system. Hence, peak suppression on signals from systems requiring different reception qualities is performed at an appropriate degree according to each system.
摘要翻译： 在存在具有不同接收质量要求的系统C和D的配置中，峰值抑制器在峰值抑制之前产生与系统D的信号组合的来自系统C的信号的副本。 基于复制品，系统特定的峰值抑制单元根据每个系统的各自的接收质量要求分别对每个系统的信号进行峰值抑制。 组合单元组合每个系统的峰值抑制信号。 因此，根据每个系统，在适当的程度上执行需要不同接收质量的系统的信号的峰值抑制。
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公开(公告)号：US20070159242A1
公开(公告)日：2007-07-12
申请号：US11429355
申请日：2006-05-05
CPC分类号： H03C5/00
摘要： A timing adjusting method detects a phase error between a main signal path from which a transmitting signal is obtained and a control signal path from which a voltage control signal is obtained, based on a to-be-amplified signal that is to be amplified and represents an amplitude or a power of the transmitting signal prior to amplification and a feedback signal that represents an amplitude or a power of the transmitting signal after the amplification, adjusts an amount of delay of at least one of the main signal path and the control signal path so as to mutually cancel the phase error, and amplifies the transmitting signal from the main signal path depending on the voltage control signal from the control signal path. The detecting the phase error may include detecting polarity transition points of a slope of a waveform of the to-be-amplified signal or the feedback signal, and measuring the phase error using the detected polarity transition points.
摘要翻译： 代表定时调整方法，根据要放大的被放大信号，检测获得发送信号的主信号路径与获得电压控制信号的控制信号路径之间的相位误差， 在放大之前的发送信号的幅度或功率以及表示放大后的发送信号的幅度或功率的反馈信号，调整主信号路径和控制信号路径中的至少一个的延迟量 以便相互抵消相位误差，并且根据来自控制信号路径的电压控制信号放大来自主信号路径的发送信号。 检测相位误差可以包括检测被放大信号或反馈信号的波形的斜率的极性转变点，以及使用检测到的极性转变点来测量相位误差。
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公开(公告)号：US20070146068A1
公开(公告)日：2007-06-28
申请号：US11367379
申请日：2006-03-06
IPC分类号： H03G3/20
CPC分类号： H03F1/0222 , H03F1/025 , H03F2200/102 , H03F2200/504 , H03F2200/511
摘要： A device is disclosed that includes an amplification part for a linear transmitter, the amplification part being configured to amplify a transmission signal in accordance with a supply voltage control signal; a generation part configured to generate a power supply signal showing the level of the transmission signal; and a control part configured to output the supply voltage control signal based on the power supply signal. The control part includes a storage part configured to store a series of values of the power supply signal belonging to a time range including a certain point of time; and an output part configured to output a maximum one of a predetermined number of values of the series of values of the power supply signal as the supply voltage control signal at the certain point of time.
摘要翻译： 公开了一种包括用于线性发送器的放大部件的装置，所述放大部件被配置为根据电源电压控制信号放大发送信号; 生成部，被配置为生成表示所述发送信号的电平的电源信号; 以及控制部，被配置为基于所述电源信号输出所述电源电压控制信号。 控制部包括：存储部，被配置为存储属于包括某个时间点的时间范围的电源信号的一系列值; 以及输出部，其被配置为在所述特定时间点输出所述电源信号的所述一系列值的预定数量的值中的最大值作为所述电源电压控制信号。
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96.发明授权Radio transceiver and method of controlling direction of radio-wave emission 有权无线电收发机和无线电波发射方向的控制方法公开(公告)号：US07391371B2
公开(公告)日：2008-06-24
申请号：US10827779
申请日：2004-04-20
IPC分类号： G01S5/04
CPC分类号： H04B7/0617 , G01S1/38 , G01S3/14 , G01S3/46 , G01S5/0226 , H04B7/0626
摘要： Disclosed is a method of controlling direction of radio-wave emission of a base-station transmitter which emits radio waves upon providing the radio waves with directivity in the direction of a receiver. Two antennas of a base station that are disposed at different positions transmit first and second signals that have been spread by mutually orthogonal spreading codes. A mobile station has a phase detector for receiving the first and second signals transmitted from respective ones of the antennas and obtaining a phase difference between these signals, and a direction estimator for calculating the direction of the mobile station, as seen from the base station, based upon the phase difference and for feeding back a signal representing the calculated direction from the mobile station to the base station. The transmitter of the base station transmits data toward the receiver in the calculated direction using a directional antenna.
摘要翻译： 公开了一种在向接收机的方向提供无线电波的基站发射机的无线电波发射的方向上发射无线电波的方法。 设置在不同位置的基站的两个天线发送已经通过相互正交的扩展码扩展的第一和第二信号。 移动站具有相位检测器，用于接收从相应天线发送的第一和第二信号，并获得这些信号之间的相位差，以及用于计算移动站的方向的方向估计器，从基站看， 基于相位差，并将表示计算出的方向的信号从移动台反馈到基站。 基站的发射机使用定向天线在计算出的方向上向接收机发送数据。
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97.发明授权Radio transceiver and method of controlling direction of radio-wave emission 有权无线电收发机和无线电波发射方向的控制方法公开(公告)号：US06577273B2
公开(公告)日：2003-06-10
申请号：US09746439
申请日：2000-12-21
IPC分类号： G01S504
CPC分类号： H04B7/0617 , G01S1/38 , G01S3/14 , G01S3/46 , G01S5/0226 , H04B7/0626
摘要： Disclosed is a method of controlling direction of radio-wave emission of a base-station transmitter which emits radio waves upon providing the radio waves with directivity in the direction of a receiver. Two antennas of a base station that are disposed at different positions transmit first and second signals that have been spread by mutually orthogonal spreading codes. A mobile station has a phase detector for receiving the first and second signals transmitted from respective ones of the antennas and obtaining a phase difference between these signals, and a direction estimator for calculating the direction of the mobile station, as seen from the base station, based upon the phase difference and for feeding back a signal representing the calculated direction from the mobile station to the base station. The transmitter of the base station transmits data toward the receiver in the calculated direction using a directional antenna.
摘要翻译： 公开了一种在向接收机的方向提供无线电波的基站发射机的无线电波发射的方向上发射无线电波的方法。 设置在不同位置的基站的两个天线发送已经通过相互正交的扩展码扩展的第一和第二信号。 移动站具有相位检测器，用于接收从相应天线发送的第一和第二信号，并获得这些信号之间的相位差，以及用于计算移动站的方向的方向估计器，从基站看， 基于相位差，并将表示计算出的方向的信号从移动台反馈到基站。 基站的发射机使用定向天线在计算出的方向上向接收机发送数据。
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公开(公告)号：US07026991B2
公开(公告)日：2006-04-11
申请号：US10859775
申请日：2004-06-03
IPC分类号： G01S5/04
CPC分类号： H04B7/0617 , G01S1/38 , G01S3/14 , G01S3/46 , G01S5/0226 , H04B7/0626
摘要： Disclosed is a method of controlling direction of radio-wave emission of a base-station transmitter which emits radio waves upon providing the radio waves with directivity in the direction of a receiver. Two antennas of a base station that are disposed at different positions transmit first and second signals that have been spread by mutually orthogonal spreading codes. A mobile station has a phase detector for receiving the first and second signals transmitted from respective ones of the antennas and obtaining a phase difference between these signals, and a direction estimator for calculating the direction of the mobile station, as seen from the base station, based upon the phase difference and for feeding back a signal representing the calculated direction from the mobile station to the base station. The transmitter of the base station transmits data toward the receiver in the calculated direction using a directional antenna.
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99.发明授权Radio transceiver and method of controlling direction of radio-wave emission 有权无线电收发机和无线电波发射方向的控制方法公开(公告)号：US06864839B2
公开(公告)日：2005-03-08
申请号：US10413421
申请日：2003-04-14
IPC分类号： G01S19/25 , G01S1/38 , G01S3/14 , G01S3/46 , G01S5/02 , H01Q3/26 , H04B7/06 , H04B7/08 , H04B7/10 , H04W16/28 , H04W64/00 , H04W88/02 , H04W88/08 , H04W92/10 , G01S5/04
CPC分类号： H04B7/0617 , G01S1/38 , G01S3/14 , G01S3/46 , G01S5/0226 , H04B7/0626
摘要： Disclosed is a method of controlling direction of radio-wave emission of a base-station transmitter which emits radio waves upon providing the radio waves with directivity in the direction of a receiver. Two antennas of a base station that are disposed at different positions transmit first and second signals that have been spread by mutually orthogonal spreading codes. A mobile station has a phase detector for receiving the first and second signals transmitted from respective ones of the antennas and obtaining a phase difference between these signals, and a direction estimator for calculating the direction of the mobile station, as seen from the base station, based upon the phase difference and for feeding back a signal representing the calculated direction from the mobile station to the base station. The transmitter of the base station transmits data toward the receiver in the calculated direction using a directional antenna.
摘要翻译： 公开了一种在向接收机的方向提供无线电波的基站发射机的无线电波发射的方向上发射无线电波的方法。 设置在不同位置的基站的两个天线发送已经通过相互正交的扩展码扩展的第一和第二信号。 移动站具有相位检测器，用于接收从相应天线发送的第一和第二信号，并获得这些信号之间的相位差，以及用于计算移动站的方向的方向估计器，从基站看， 基于相位差，并将表示所计算的方向的信号从移动台反馈到基站。 基站的发射机使用定向天线在计算出的方向上向接收机发送数据。
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公开(公告)号：US06359875B1
公开(公告)日：2002-03-19
申请号：US09084830
申请日：1998-05-26
IPC分类号： H04B7216
CPC分类号： H04B1/707 , H04B2201/70707
摘要： A CDMA receiving apparatus receives a direct sequence CDMA signal produced through QPSK spreading modulation, performs coherent detection of the direct sequence CDMA signal, and despreads the signals, obtained through the coherent detection, through a despreading portion. The despreading portion comprises a selector portion. The selector portion selects signals as a demodulated and despread in-phase output signal and a demodulated and despread quadrature output signal, in accordance with despreading codes, from demodulated in-phase and quadrature signals obtained through the coherent detection, and an inverted in-phase and quadrature signals obtained as a result of the signs of the demodulated in-phase and quadrature signals being inverted.
摘要翻译： CDMA接收装置接收通过QPSK扩展调制产生的直接序列CDMA信号，执行直接序列CDMA信号的相干检测，并且通过去扩展部分解调通过相干检测获得的信号。 解扩部分包括选择器部分。 选择器部分根据去扩展码从解调的通过相干检测获得的同相和正交信号中选择信号作为解调和去扩展的同相输出信号和解调和去扩展的正交输出信号，以及反相同相 并且作为被解调的同相和正交信号的符号的结果获得的正交信号被反转。
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