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    Multi-band predistorter using power series representation
    32.
    发明申请
    Multi-band predistorter using power series representation 有权
    多波段预失真器采用幂级数表示法

    公开(公告)号：US20050168283A1

    公开(公告)日：2005-08-04

    申请号：US11045337

    申请日：2005-01-31

    申请人： Yasunori Suzuki ,  Shoichi Narahashi ,  Shinji Mizuta ,  Yasushi Yamao

    发明人： Yasunori Suzuki ,  Shoichi Narahashi ,  Shinji Mizuta ,  Yasushi Yamao

    IPC分类号： H03F1/32 ,  H04B1/62 ,  H03F1/26

    CPC分类号： H03F1/3258 ,  H03F1/3241 ,  H03F1/3252

    摘要： A transmission signal containing signals of a plurality of frequency bands is divided and fed to a linear signal transfer path including a delay circuit and a plurality of distortion generation paths for the plurality of frequency bands. In each distortion generation path, the signal of the corresponding frequency band is extracted by a band signal extractor from the signal fed to the path, an odd-order distortion of the extracted signal is generated by an odd-order distortion generator, and the phase and amplitude of the odd-order distortion are adjusted by a vector adjuster to provide the output signal of the distortion generation path. The output signals from such plurality of distortion generation paths are combined by a combiner with the output from the linear signal transfer path to provide the combined output as the output from a multi-band predistorter using power series representation.

    摘要翻译： 包含多个频带的信号的发送信号被分割并馈送到包括用于多个频带的延迟电路和多个失真产生路径的线性信号传送路径。 在每个失真产生路径中，通过频带信号提取器从馈送到路径的信号中提取对应频带的信号，由奇数阶失真发生器产生提取信号的奇数失真， 并且通过矢量调整器调整奇数失真的幅度，以提供失真产生路径的输出信号。 来自这样的多个失真产生路径的输出信号由组合器与来自线性信号传送路径的输出组合，以使用功率级数表示来提供组合输出作为来自多频带预失真器的输出。

    Method and apparatus for stabilizing communication in mobile communication system
    33.
    发明授权
    Method and apparatus for stabilizing communication in mobile communication system 有权
    用于稳定移动通信系统中的通信的方法和装置

    公开(公告)号：US06760588B2

    公开(公告)日：2004-07-06

    申请号：US09748260

    申请日：2000-12-27

    申请人： Ichiro Okajima ,  Narumi Umeda ,  Yoshifumi Suzuki ,  Yasushi Yamao

    发明人： Ichiro Okajima ,  Narumi Umeda ,  Yoshifumi Suzuki ,  Yasushi Yamao

    IPC分类号： H04Q720

    CPC分类号： H04B7/022 ,  H04B7/026 ,  H04W92/20

    摘要： A mobile communication system includes a plurality of base stations in a communication service area connected to a packet communications network. A mobile station communicates with a second station through the plurality of base stations and the network. The mobile communication system determines a virtual base station group as an aggregation of the plurality of base stations communicating with the mobile station, based on a condition of a radio transmission path between the mobile station and each base station, and combines information received by the plurality of base stations that belong to the virtual base station group at a base station included in the virtual base station group. The network connects the plurality of base stations non-hierarchically and the base station transmits combined information to the second station through the network relative to combined packets having the second station as a destination.

    摘要翻译： 移动通信系统包括连接到分组通信网络的通信服务区域中的多个基站。 移动站通过多个基站和网络与第二站通信。 移动通信系统基于移动台与各基站之间的无线传输路径的条件，将虚拟基站组确定为与移动台通信的多个基站的汇聚，并组合由多个基站接收的信息 在虚拟基站组中包括的基站处属于虚拟基站组的基站。 网络非层次地连接多个基站，并且基站相对于具有第二台站的目的地的组合分组，通过网络将组合信息发送到第二站。

    Radio paging signal coding control scheme using variable number of logical channels according to paging signal traffic
    34.
    发明授权
    Radio paging signal coding control scheme using variable number of logical channels according to paging signal traffic 失效
    无线寻呼信号编码控制方案根据寻呼信号流量使用可变数量的逻辑信道

    公开(公告)号：US06512748B1

    公开(公告)日：2003-01-28

    申请号：US09238883

    申请日：1999-01-28

    申请人： Takayuki Mizuki ,  Setsuya Ohashi ,  Yasushi Yamao ,  Shogo Ito

    发明人： Takayuki Mizuki ,  Setsuya Ohashi ,  Yasushi Yamao ,  Shogo Ito

    IPC分类号： H04Q700

    CPC分类号： H04W88/187

    摘要： A radio paging signal coding control scheme capable of improving the reception characteristic of the receiver by carrying out a coding control to determine logical channels for accommodating paging signals such that the transmission rate equivalently becomes as low as possible according to the paging signal traffic, without interrupting the paging signal coding processing while maintaining the combination of transmission rate and modulation scheme for frames, is disclosed. In the case of using prescribed transmission rate and N-valued modulation scheme, logical channels to be used for transmission of paging signals among a plurality of available logical channels are determined by setting priority orders among a plurality of available logical channels such that a number of states of modulated signals becomes less than N when paging signal traffic is small.

    摘要翻译： 一种无线电寻呼信号编码控制方案，其能够通过执行编码控制来确定用于适应寻呼信号的逻辑信道来提高接收机的接收特性，使得传输速率根据寻呼信号业务等效地变得尽可能低，而不会中断 公开了在保持帧的传输速率和调制方案的组合的同时寻呼信号编码处理。 在使用规定的传输速率和N值调制方案的情况下，通过设置多个可用逻辑信道中的优先顺序来确定用于多个可用逻辑信道中的寻呼信号的传输的逻辑信道， 当寻呼信号流量小时，调制信号的状态变得小于N。

    Mobile communications system and mobile receiver
    35.
    发明授权
    Mobile communications system and mobile receiver 失效
    移动通信系统和移动接收机

    公开(公告)号：US5722065A

    公开(公告)日：1998-02-24

    申请号：US392990

    申请日：1995-05-25

    申请人： Shogo Ito ,  Yasushi Yamao

    发明人： Shogo Ito ,  Yasushi Yamao

    IPC分类号： H04B7/26 ,  H04W52/02 ,  H04W88/02 ,  H04B7/00 ,  H04Q3/02 ,  H04Q9/14

    CPC分类号： H04W52/0238 ,  H04W88/022 ,  Y02B60/50

    摘要： Battery saving is achieved by not receiving subframes which do not need to be received. Information regarding the time interval during which unnecessary subframes will be transmitted is inserted in a significant subframe which the base station transmits prior to this time interval, thereby notifying the radio paging receivers. The radio paging receivers detect these notification signals and stop receiving during the time interval when subframes which do not need to be received are transmitted.

    摘要翻译： PCT No.PCT / JP94 / 01413 Sec。 371日期：1995年5月25日 102（e）日期1995年5月25日PCT 1994年8月26日PCT公布。 第WO95 / 06393号公报 日期1995年3月2日电池保存是通过不接收不需要接收的子帧来实现的。 将不必要的子帧发送的时间间隔的信息插入基站在该时间间隔之前发送的重要子帧中，从而通知无线寻呼接收机。 无线寻呼接收机检测这些通知信号，并在不需要接收的子帧的时间间隔内停止接收。

    Method, base station and mobile station for timeslot selection and timeslot assignment
    36.
    发明授权
    Method, base station and mobile station for timeslot selection and timeslot assignment 失效
    方法，基站和移动台用于时隙选择和时隙分配

    公开(公告)号：US07620021B1

    公开(公告)日：2009-11-17

    申请号：US09703719

    申请日：2000-11-02

    申请人： Lan Chen ,  Narumi Umeda ,  Yasushi Yamao

    发明人： Lan Chen ,  Narumi Umeda ,  Yasushi Yamao

    IPC分类号： H04J3/00

    CPC分类号： H04W72/02 ,  H04W48/12 ,  H04W48/14 ,  H04W48/16 ,  H04W72/0446 ,  H04W74/0866

    摘要： A timeslot selection method is provided. The timeslot selection method includes the steps of: obtaining a propagation loss; receiving an occupation state and an interference amount of an uplink timeslot; obtaining a desired wave power from the propagation loss; obtaining a ratio between the desired wave power and the propagation loss for the uplink timeslot in which the occupation state is idle; and selecting the transmitting timeslot by using the ratio. In addition, a timeslot assignment method in which there are a plurality of TDD boundaries each of which is a boundary between at least an uplink timeslot and at least a downlink timeslot in a frame is provided. Furthermore, a timeslot assignment method is provided, in which assignment is carried out according to a service class included in a QoS request.

    摘要翻译： 提供了时隙选择方法。 时隙选择方法包括以下步骤：获得传播损耗; 接收上行时隙的占用状态和干扰量; 从传播损耗中获得所需的波功率; 获得所述占用状态空闲的上行链路时隙的期望波功率与传播损耗之间的比率; 并使用该比率选择发送时隙。 此外，提供了一种时隙分配方法，其中存在多个TDD边界，每个TDD边界是帧中的至少上行链路时隙和至少下行链路时隙之间的边界。 此外，提供了时隙分配方法，其中根据包括在QoS请求中的服务类别进行分配。

    Resonant Element and High Frequency Filter, and Wireless Communication Apparatus Equipped with the Resonant Element or the High Frequency Filter
    37.
    发明申请
    Resonant Element and High Frequency Filter, and Wireless Communication Apparatus Equipped with the Resonant Element or the High Frequency Filter 失效
    谐振元件和高频滤波器，以及配备有谐振元件或高频滤波器的无线通信装置

    公开(公告)号：US20090224855A1

    公开(公告)日：2009-09-10

    申请号：US12043585

    申请日：2008-03-06

    申请人： Yasushi Yamao ,  Makoto Hasegawa ,  Hiroyuki Kobayas

    发明人： Yasushi Yamao ,  Makoto Hasegawa ,  Hiroyuki Kobayas

    IPC分类号： H01P7/08 ,  H01P1/203

    CPC分类号： H01P7/08 ,  H01P1/203

    摘要： What is disclosed is a resonant element that causes a signal input from an input terminal to resonate at a predetermined resonance frequency and outputs it to an output terminal. The element has a transmission line series that includes a plurality of transmission lines connected in series with each other and intersects with a hotline that connects the input terminal and the output terminal and a plurality of switches, wherein at least one of one end and the other end of the transmission line series is a grounded end, the transmission lines are categorized into a first transmission line, which is a transmission line having a fixed length, and a second transmission line, which is a transmission line to which the switch one end of which is a grounded end is connected in series at a point between it and an adjacent transmission line, the transmission line in one end side of the transmission line series in a first section extending from a intersection point of the transmission line series and the hotline to one end of the transmission line series and the transmission line in the other end side of the transmission line series in a second section extending from the intersection point to the other end of the transmission line series are the second transmission lines, the first transmission lines are provided in the first section and the second section, and the resonance frequency is switched by turning on/off the switch to change the sum of the lengths of the transmission lines through which the signal passes.

    摘要翻译： 公开了一种谐振元件，其使来自输入端的信号输入以预定的谐振频率谐振并将其输出到输出端。 该元件具有传输线系列，其包括彼此串联连接的多个传输线，并且与连接输入端和输出端的热线和多个开关相交，其中一端和另一端中的至少一个 传输线系列的端部是接地端，传输线被分类为具有固定长度的传输线的第一传输线和作为传输线的一端的传输线的第二传输线 接地端在其与相邻的传输线之间的点处串联连接，传输线的一端侧的传输线在从传输线系列和热线的交点延伸到第一部分中的传输线 传输线系列的一端和传输线系列的另一端侧的传输线在从第一部分延伸的第二部分中 传输线系列的另一端的第二传输线是第一传输线，第一传输线设置在第一部分和第二部分中，并且通过接通/关闭开关来切换谐振频率， 信号通过的传输线的长度。

    Packet transmission method, base station and mobile station
    38.
    发明授权
    Packet transmission method, base station and mobile station 失效
    分组传输方式，基站和移动台

    公开(公告)号：US07443816B2

    公开(公告)日：2008-10-28

    申请号：US10170439

    申请日：2002-06-14

    申请人： Lan Chen ,  Narumi Umeda ,  Yasushi Yamao

    发明人： Lan Chen ,  Narumi Umeda ,  Yasushi Yamao

    IPC分类号： H04Q7/20 ,  H04J3/16 ,  H04B7/216

    CPC分类号： H04W72/08 ,  H04W28/06 ,  H04W28/22

    摘要： A packet transmission method in which packets are transmitted between a base station and a mobile station communicating with the base station includes the steps of: recognizing the size of each of the packets to be transmitted; determining a transmission rate for each packet in accordance with the recognized size of the packet; allocating a radio resource to the transmission of each packet between the base station and the mobile station based on the determined transmission rate; and transmitting each packet between the base station and the mobile station using the allocated radio resource. In the method, a modulation method or a radio resource used for transmitting the packets is determined by calculating a transmission rate in a wireless area according to the size of each packet and a transmission request in the wireless area. The transmission request is recognized by the base station from an upper network when the packets are transmitted downward, while calculated by the base station based on a user request and a transmission state of the upper network when the packets are transmitted upward. Therefore, end-to-end quality of service can be provided.

    摘要翻译： 在基站与与基站通信的移动台之间发送分组的分组发送方法包括以下步骤：识别要发送的每个分组的大小; 根据识别的分组大小确定每个分组的传输速率; 基于所确定的传输速率，将无线电资源分配给所述基站和所述移动台之间的每个分组的传输; 并且使用所分配的无线电资源在基站和移动台之间发送每个分组。 在该方法中，通过根据每个分组的大小和无线区域中的传输请求计算无线区域中的传输速率来确定用于传送分组的调制方法或无线电资源。 当分组向下发送时，由基站从基站识别出传输请求，同时当基站用户请求和上层网络的传输状态由基站计算时，分组被向上发送。 因此，可以提供端到端的服务质量。

    Digital predistorter using power series model
    39.
    发明授权
    Digital predistorter using power series model 失效
    数字预失真器采用功率系列模型

    公开(公告)号：US07418056B2

    公开(公告)日：2008-08-26

    申请号：US11044586

    申请日：2005-01-28

    申请人： Yasunori Suzuki ,  Shinji Mizuta ,  Yasushi Yamao

    发明人： Yasunori Suzuki ,  Shinji Mizuta ,  Yasushi Yamao

    IPC分类号： H04L25/49

    CPC分类号： H03F1/3258 ,  H03F1/3247 ,  H03F1/3294 ,  H03F2200/336 ,  H03F2201/3209

    摘要： A digital predistorter compensates for nonlinear distortion of a power amplifier using a power series model. The digital predistorter includes a distortion generating unit configured to introduce a nonlinear distortion component of a prescribed order into a digital input signal supplied to the digital predistorter. The distortion generating unit has a multiplier configured to raise the digital input signal to a power consistent with the prescribed order of the nonlinear distortion component, and a finite impulse response filter connected in series with the multiplier. The digital predistorter also includes an adaptive controller configured to receive a reference signal and adaptively adjust the tap coefficient of the finite impulse response filter so as to bring the reference signal to a desired level.

    摘要翻译： 数字预失真器补偿使用功率系列模型的功率放大器的非线性失真。 数字预失真器包括：失真产生单元，被配置为将规定顺序的非线性失真分量引入到提供给数字预失真器的数字输入信号中。 失真产生单元具有被配置为将数字输入信号提升到与非线性失真分量的规定顺序一致的功率的乘法器和与乘法器串联连接的有限脉冲响应滤波器。 数字预失真器还包括自适应控制器，其被配置为接收参考信号并且自适应地调整有限脉冲响应滤波器的抽头系数，以使参考信号达到期望的水平。