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    • 1. 发明授权
    • Radio communication system base station and mobile station
    • 无线电通信系统基站和移动台
    • US07715841B2
    • 2010-05-11
    • US10572978
    • 2004-10-01
    • Yoshifumi HosokawaNoriaki SaitoKatsuaki AbeMichiaki MatsuoYoshito ShimizuJunji Sato
    • Yoshifumi HosokawaNoriaki SaitoKatsuaki AbeMichiaki MatsuoYoshito ShimizuJunji Sato
    • H04Q7/20
    • H04W88/06H04W40/246H04W48/08H04W92/02H04W92/10
    • A radio communication system includes a base station of a radio communication system A, a base station of a radio communication system B operation in non-synchronized way with the base station, and a mobile station capable of communicating with both of the radio communication system A and the radio communication system B. The base station includes a radio unit for transmitting/receiving a radio wave to/from the mobile station and a system information estimation unit for estimating the system information on the radio communication system B and outputting the system estimation information. The radio unit of the base station reports the system estimation information on the base station to the mobile station. The mobile station receives the system estimation information on the base station in advance so as to perform effective switching without using a cabled connection from the radio communication system A to the radio communication system B via a relay device or the like.
    • 无线通信系统包括无线通信系统A的基站,无线通信系统B的与基站非同步的操作的基站,以及能够与无线通信系统A通信的移动台 和无线通信系统B.基站包括用于向移动台发送/接收无线电波的无线电单元和用于估计无线电通信系统B的系统信息的系统信息估计单元,并输出系统估计信息 。 基站的无线单元向移动台报告基站的系统估计信息。 移动站预先在基站上接收系统估计信息,以便不经由中继装置等从无线通信系统A向无线通信系统B的电缆连接进行有效的切换。
    • 3. 发明申请
    • Frequency dividing circuit and multimode radio device using the same
    • 分频电路和使用其的多模无线电设备
    • US20070099580A1
    • 2007-05-03
    • US10596820
    • 2005-03-02
    • Yoshifumi HosokawaNoriaki SaitoMichiaki MatsuoYoshito Shimizu
    • Yoshifumi HosokawaNoriaki SaitoMichiaki MatsuoYoshito Shimizu
    • H04B1/40H04B7/00
    • H04B1/0082H03D7/166
    • In a multimode radio, as many frequency dividers as the number of radio systems become necessary and the circuit scale of a frequency dividing section becomes large. A frequency dividing section 22 is made up of a frequency divider 19 for dividing output of a local oscillator, a frequency divider 20 for dividing output of an in-phase local oscillation signal of the frequency divider 19, and a dummy circuit 21 connected to the output terminal of a quadrature local oscillation signal of the frequency divider 19. At the first frequency band operation time, output of the frequency divider 19 is used for modulation and demodulation and at the second frequency band operation time, output of the frequency divider 20 is used for modulation and demodulation. Although the frequency divider 19 is shared between the first and second frequency bands, the dummy circuit is made the same circuit as an input amplifier of the frequency divider 20 at the first frequency band operation time, so that the phase difference between the in-phase local oscillation signal and the quadrature local oscillation signal output by the frequency divider 19 can be kept. Accordingly, the frequency dividers are shared and combined for lessening the circuit scale.
    • 在多模无线电中,与无线电系统的数量一样多的分频器变得必要,并且分频部分的电路规模变大。 分频部分22由用于分频本地振荡器的输出的分频器19,用于分频分频器19的同相本地振荡信号的输出的分频器20和连接到分频器19的虚拟电路21组成。 分频器19的正交本地振荡信号的输出端子。 在第一频带操作时间,分频器19的输出用于调制和解调,并且在第二频带操作时间,分频器20的输出用于调制和解调。 虽然分频器19在第一和第二频带之间共享,但是在第一频带操作时间,使虚设电路与分频器20的输入放大器相同,使得同相 可以保持由分频器19输出的本地振荡信号和正交本地振荡信号。 因此,分频器被共享并组合以减小电路规模。
    • 4. 发明授权
    • Frequency dividing circuit and multimode radio device using the same
    • 分频电路和使用其的多模无线电设备
    • US07816953B2
    • 2010-10-19
    • US10596820
    • 2005-03-02
    • Yoshifumi HosokawaNoriaki SaitoMichiaki MatsuoYoshito Shimizu
    • Yoshifumi HosokawaNoriaki SaitoMichiaki MatsuoYoshito Shimizu
    • H03B19/00
    • H04B1/0082H03D7/166
    • A frequency dividing section is made up of a frequency divider for dividing output of a local oscillator, a frequency divider for dividing output of an in-phase local oscillation signal of the frequency divider, and a dummy circuit connected to the output terminal of a quadrature local oscillation signal of the frequency divider. At the first frequency band operation time, output of the frequency divider is used for modulation and demodulation and at the second frequency band operation time, output of the frequency divider is used for modulation and demodulation. Although the frequency divider is shared between the first and second frequency bands, the dummy circuit is made the same circuit as an input amplifier of the frequency divider at the first frequency band operation time, so that the phase difference between the in-phase local oscillation signal and the quadrature local oscillation signal output by the frequency divider can be kept. Accordingly, the frequency dividers are shared and combined for lessening the circuit scale.
    • 分频部由用于分频本地振荡器的分频器,用于分频分频器的同相本地振荡信号的输出的分频器和连接到正交的输出端子的虚拟电路组成 分频器的本地振荡信号。 在第一频带操作时间,分频器的输出用于调制和解调,并且在第二频带操作时间,分频器的输出用于调制和解调。 虽然在第一和第二频带之间共享分频器,但是在第一频带操作时间,虚设电路与分频器的输入放大器相同,使得同相局部振荡 可以保持由分频器输出的信号和正交本地振荡信号。 因此,分频器被共享并组合以减小电路规模。
    • 5. 发明申请
    • Modulation apparatus and modulation method
    • 调制装置及调制方式
    • US20070120617A1
    • 2007-05-31
    • US10576304
    • 2004-10-21
    • Junji SatoMichiaki MatsuoNoriaki SaitoYoshito Shimizu
    • Junji SatoMichiaki MatsuoNoriaki SaitoYoshito Shimizu
    • H03C3/09
    • H03F3/24H03F1/32H03F2200/331H04L27/20H04L27/36H04L2027/003H04L2027/0067
    • A modulation apparatus which can be applied to the conventional analog PLL modulation system without using an enormous reference table, enables a phase distortion to be compensated accurately without requiring timing control with high accuracy, and can be applied to communication systems that do not perform amplitude modulation. In this apparatus, a signal generation section (101) generates a baseband phase signal. A phase distortion compensation section (102) obtains a phase distortion by multiplying a magnitude of a frequency change at predetermined time or magnitude of phase change between adjacent data of the baseband phase signal by a parameter specific to the apparatus, and thereby compensates the baseband phase signal for the phase distortion. A storage section (103) stores the parameter and calculation equation. A modulation section (105) modulates a frequency converted signal input from a frequency conversion section (104) using the baseband phase signal to generate a modulated signal.
    • 可以应用于传统的模拟PLL调制系统而不使用庞大的参考表的调制装置使得能够精确地补偿相位失真,而不需要高精度的定时控制,并且可以应用于不执行幅度调制的通信系统 。 在该装置中,信号生成部(101)生成基带相位信号。 相位失真补偿部(102)通过将基带相位信号的相邻数据之间的相位变化的规定时间或相位变化量的频率乘以设备特有的参数来获得相位失真,从而补偿基带相位 信号用于相位失真。 存储部(103)存储参数和计算式。 调制部(105)使用基带相位信号调制从频率变换部(104)输入的变频信号,生成调制信号。
    • 10. 发明授权
    • Radio communication device supporting a plurality of communication schemes
    • 支持多种通信方式的无线通信装置
    • US08346293B2
    • 2013-01-01
    • US11629387
    • 2005-06-13
    • Katsuaki AbeMichiaki MatsuoNoriaki SaitoTakenori SakamotoAkihiko Matsuoka
    • Katsuaki AbeMichiaki MatsuoNoriaki SaitoTakenori SakamotoAkihiko Matsuoka
    • H04M1/00
    • H04W88/06H04B1/0003
    • There are provided a plurality of systems of reconfigurable radio processing unit (102) whose function and performance can be modified. A control unit (104) collects quality information on the communication link in communication methods received at respective radio processing systems (102a, 102b). According to this, the control unit (104) selects an optimal communication method and transmission mode from a plurality of communication methods and transmission modes (for example, diversity transmission between a plurality of systems, diversity transmission by a single communication method, and MIMO channel multiplex transmission). By modifying configurations of the reconfigurable radio processing unit (102) according to the selected communication method and transmission mode, it is possible to communicate at a desired transmission mode. Thus, it is possible to perform an optimal transmission to the communication link according to the quality condition and other request condition.
    • 提供了多个可重构无线电处理单元(102)的系统,其功能和性能可以被修改。 控制单元(104)在各个无线电处理系统(102a,102b)处接收的通信方法中收集关于通信链路的质量信息。 据此,控制单元(104)从多个通信方式和发送模式(例如,多个系统之间的分集发送,单个通信方式的分集发送,以及MIMO信道 多路传输)。 通过根据所选择的通信方法和传输模式修改可重构无线电处理单元(102)的配置,可以以期望的传输模式进行通信。 因此,可以根据质量条件和其他请求条件向通信链路执行最佳传输。