公开(公告)号：US08315153B2

公开(公告)日：2012-11-20

申请号：US12535723

申请日：2009-08-05

申请人： Yunjian Jia ,  Katsuhiko Tsunehara

发明人： Yunjian Jia ,  Katsuhiko Tsunehara

IPC分类号： H04J11/00

CPC分类号： H04L27/2647 ,  H04J11/00

摘要： A wireless communication equipment includes receive processing and transmit processing. The receive processing includes a Fourier transform unit that transforms all received signals to frequency region signals by Fourier transform. A demodulation unit demodulates the received signals from the Fourier-transformed frequency region signals. A random access detection unit that monitors signals in frequency regions of random access signals of the Fourier-transformed frequency region signals, and detects that the random access signals are received, by a change pattern of the signals in the frequency regions of random access signals in one transmission time interval.

摘要翻译： 无线通信设备包括接收处理和发送处理。 接收处理包括傅立叶变换单元，其通过傅里叶变换将所有接收的信号转换成频域信号。 解调单元解调来自傅立叶变换频率区域信号的接收信号。 一种随机存取检测单元，其通过在随机接入信号的频率区域中的信号的改变模式来监视经傅里叶变换的频域信号的随机接入信号的频率区域中的信号，并且检测随机接入信号的接收信号 一个传输时间间隔。

公开(公告)号：US20070275725A1

公开(公告)日：2007-11-29

申请号：US11802526

申请日：2007-05-23

申请人： Katsuhiko Tsunehara

发明人： Katsuhiko Tsunehara

IPC分类号： H04Q7/20

CPC分类号： H04W36/26 ,  H04L67/04 ,  H04L67/12 ,  H04L67/14 ,  H04L67/148

摘要： A method of determining whether or not the terminal handover is executed in accordance with the communication capability available between the wireless communication terminals, wherein the communication capability is measured when each handover request is generated, when one wireless communication system currently in use is changed to another, and regularly at predetermined intervals; a terminal to be used is selected depending on the measured communication capability; and decision is made on whether or not the terminal handover is executed, depending on the result of selection.

摘要翻译： 一种根据无线通信终端之间可用的通信能力确定终端切换是否被执行的方法，其中当每个切换请求生成时测量通信能力，当一个当前使用的一个无线通信系统改变为另一个时 并且以预定间隔定期进行; 要使用的终端取决于测量的通信能力; 并且根据选择的结果来决定是否执行终端切换。

公开(公告)号：US20060199550A1

公开(公告)日：2006-09-07

申请号：US11349199

申请日：2006-02-08

申请人： Takashi Ishikawa ,  Manabu Kawabe ,  Katsuhiko Tsunehara ,  Hirotake Ishii

发明人： Takashi Ishikawa ,  Manabu Kawabe ,  Katsuhiko Tsunehara ,  Hirotake Ishii

IPC分类号： H04B1/40

CPC分类号： H04B1/0003 ,  H04B1/40

摘要： A radio communication apparatus having a radio modem for processing a signal in a radio frequency band, a signal processor for processing a base band of a transmission or reception signal, and a CPU for processing a protocol. The signal processor includes signal processing blocks implemented by programmable software. Each of the signal processing blocks processes a signal of reception signal data input from the radio modem or from a preceding stage of one of the signal processing blocks or a signal of transmission signal data input from the CPU or from the preceding stage of signal processing block on the basis of a control signal input together with the transmission signal data or the reception signal data. The control signal can include information required by all the signal processing blocks in a common format.

摘要翻译： 一种无线电通信装置，具有用于处理无线电频带中的信号的无线电调制解调器，用于处理发送或接收信号的基带的信号处理器和用于处理协议的CPU。 信号处理器包括由可编程软件实现的信号处理块。 每个信号处理块处理从无线电调制解调器输入的接收信号数据的信号或从信号处理块中的一个输入的传输信号数据的信号或从信号处理块的前一级输入的传输信号数据的信号 基于与发送信号数据或接收信号数据一起输入的控制信号。 控制信号可以包括通用格式的所有信号处理块所需的信息。

公开(公告)号：US07006463B2

公开(公告)日：2006-02-28

申请号：US10262935

申请日：2002-10-03

申请人： Katsuhiko Tsunehara ,  Takashi Yano ,  Nobukazu Doi ,  Takaki Uta ,  Keiji Hasegawa

发明人： Katsuhiko Tsunehara ,  Takashi Yano ,  Nobukazu Doi ,  Takaki Uta ,  Keiji Hasegawa

IPC分类号： H04B7/185 ,  H04B7/216

CPC分类号： H04W52/54 ,  H04W52/146 ,  H04W52/245 ,  H04W52/58 ,  H04W88/08

摘要： An uplink channel transmission power control method is provided for a CDMA mobile communication system performing one way communication. A base station measures the received level of data transmitted from each mobile terminal at each channel, and generates a transmission power control signal of each uplink traffic channel. The generated transmission power control signals are multiplexed, and the multiplexed common transmission power control signal is transmitted to all mobile terminals by using the common channel shared by the mobile terminals. Each mobile terminal derives the transmission power control signal of the uplink traffic channel used by the terminal, from the received common transmission power control signal, and controls the transmission power of a data packet.

公开(公告)号：US20050078626A1

公开(公告)日：2005-04-14

申请号：US10956115

申请日：2004-10-04

申请人： Atsushi Ogino ,  Ryota Yamasaki ,  Katsuhiko Tsunehara ,  Naoto Matsuzawa ,  Hideya Suzuki ,  Takashi Yano

发明人： Atsushi Ogino ,  Ryota Yamasaki ,  Katsuhiko Tsunehara ,  Naoto Matsuzawa ,  Hideya Suzuki ,  Takashi Yano

IPC分类号： G01S5/10 ,  H04L12/28 ,  H04W64/00 ,  H04W84/12 ,  G01C21/28 ,  H04Q7/00 ,  H04Q7/20

CPC分类号： H04W64/00 ,  H04W84/12

摘要： A method and system for detecting the position of a mobile unit efficiently and with high precision in a multipath environment. A wireless position detection system made up of a mobile station containing a wireless communication means to allow sending and receiving multiple to and from mutually different antenna positions and, a base station for performing wireless communication with mobile stations containing a wireless communication means and, multiple wireless receivers for receiving each of the multiple signals sent by the wireless communication means between the base stations and, a server for detecting the position of the mobile station from each wireless receiver and from the position of the base station, and the time relating to received signals measured by the multiple wireless receivers.

摘要翻译： 一种用于在多路径环境中有效且高精度地检测移动单元的位置的方法和系统。 一种由包含无线通信装置的移动站组成的无线位置检测系统，用于允许从互相不同的天线位置发送和接收多个天线;以及基站，用于与包含无线通信装置的移动站进行无线通信，以及多个无线 用于接收由基站之间的无线通信装置发送的多个信号中的每一个的接收机，以及用于从每个无线接收机检测移动台的位置和从基站的位置检测移动台的位置的服务器以及与接收信号有关的时间 由多个无线接收机测量。

公开(公告)号：US08165620B2

公开(公告)日：2012-04-24

申请号：US11209713

申请日：2005-08-24

申请人： Katsuhiko Tsunehara ,  Hirotake Ishii

发明人： Katsuhiko Tsunehara ,  Hirotake Ishii

IPC分类号： H04M1/00

CPC分类号： G06F13/4265

摘要： Disclosed is the hardware construction of a radio communication apparatus that can meet advanced radio communications. A control bus for transferring control signals between a main processor and components is separated from a data bus for transferring transmission/receive signals between processor units including sub-processors and an external interface. The sub-processors constitute the processor units, and a software defined radio of the present invention may include plural processor units. The processor units are connected by a dedicated interunit interface. The processor units may include multiple sub-processors, which are connected serially through an interprocessor interface.

摘要翻译： 公开了能够满足先进无线通信的无线通信装置的硬件结构。 用于在主处理器和组件之间传送控制信号的控制总线与用于在包括子处理器和外部接口的处理器单元之间传送发送/接收信号的数据总线分离。 子处理器构成处理器单元，并且本发明的软件定义的无线电可以包括多个处理器单元。 处理器单元通过专用的互连接口连接。 处理器单元可以包括通过处理器间接口串行连接的多个子处理器。

公开(公告)号：US20090307567A1

公开(公告)日：2009-12-10

申请号：US12473427

申请日：2009-05-28

申请人： Katsuhiko Tsunehara ,  Yunjian Jia

发明人： Katsuhiko Tsunehara ,  Yunjian Jia

IPC分类号： H03M13/45 ,  G06F11/00

CPC分类号： H03M13/3723 ,  H03M13/2957 ,  H03M13/612 ,  H03M13/658

摘要： The error correction capability for wireless communication carried out involving propagation path fluctuation in time and frequency selectivity can be improved. A soft decision likelihood value inputted to an error correction decoder is multiplied by a weight determined according to the distance between the data symbol and pilot symbol corresponding to the soft decision likelihood value. Namely, the soft decision bit likelihood value corresponding to the data symbol is weighted according to the distances in time or frequency between the pilot symbol and data symbol. The weight is made smaller when the distance in time or frequency is larger.

摘要翻译： 可以提高在时间和频率选择性中涉及传播路径波动的无线通信的纠错能力。 输入到纠错解码器的软判决似然值乘以根据数据符号与对应于软判决似然值的导频符号之间的距离确定的加权。 即，对应于数据符号的软判决比特似然值根据导频符号和数据符号之间的时间或频率的距离进行加权。 当时间或频率的距离较大时，重量变小。

公开(公告)号：US07353032B2

公开(公告)日：2008-04-01

申请号：US11633127

申请日：2006-12-04

申请人： Atsushi Ogino ,  Takashi Yano ,  Katsuhiko Tsunehara ,  Ryota Yamasaki ,  Masaaki Shida ,  Hideya Suzuki ,  Nobukazu Doi

发明人： Atsushi Ogino ,  Takashi Yano ,  Katsuhiko Tsunehara ,  Ryota Yamasaki ,  Masaaki Shida ,  Hideya Suzuki ,  Nobukazu Doi

IPC分类号： H04Q7/20

CPC分类号： H04W64/00 ,  G01S5/0054 ,  G01S5/0081 ,  G01S5/021 ,  G01S5/06

摘要： A method, system, and apparatus are provided for detecting a position of a terminal in a network accurately without a GPS receiver. In one example, a method for locating a position of a terminal includes calculating a position of a base station; detecting a clock time difference between the base station and another base station; measuring a reception timing of a signal received by the base station from the terminal; and locating the position of the terminal using at least the position of the base station, the clock time difference, and the reception timing.

摘要翻译： 提供了一种方法，系统和装置，用于在没有GPS接收器的情况下准确地检测终端在网络中的位置。 在一个示例中，用于定位终端的位置的方法包括计算基站的位置; 检测基站与另一基站之间的时钟时间差; 测量由基站从终端接收的信号的接收定时; 以及使用至少基站的位置，时钟时间差和接收定时来定位终端的位置。

公开(公告)号：US07280521B2

公开(公告)日：2007-10-09

申请号：US10790005

申请日：2004-03-02

申请人： Katsuhiko Tsunehara ,  Takashi Yano

发明人： Katsuhiko Tsunehara ,  Takashi Yano

IPC分类号： H04Q7/24

CPC分类号： H04W64/00 ,  G01S5/0221 ,  H04W88/08

摘要： In an access point apparatus for a wireless LAN system equipped with a terminal location detecting function, memory capacity required for the access point apparatus is reduced. A received signal memory control module controls access such that a memory space of a received signal memory can be reused by performing sequentially overwrite operation while stopping capturing of the received signal in response to a packet detection signal outputted from a packet detecting module.

摘要翻译： 在具有终端位置检测功能的无线LAN系统的接入点装置中，减少了接入点设备所需的存储器容量。 接收到的信号存储器控制模块控制接入，使得响应于从分组检测模块输出的分组检测信号，停止接收信号的捕获，通过执行顺序重写操作，可以重新使用接收信号存储器的存储器空间。

公开(公告)号：US07266098B2

公开(公告)日：2007-09-04

申请号：US10956115

申请日：2004-10-04

申请人： Atsushi Ogino ,  Ryota Yamasaki ,  Katsuhiko Tsunehara ,  Naoto Matsuzawa ,  Hideya Suzuki ,  Takashi Yano

发明人： Atsushi Ogino ,  Ryota Yamasaki ,  Katsuhiko Tsunehara ,  Naoto Matsuzawa ,  Hideya Suzuki ,  Takashi Yano

IPC分类号： H04Q7/00 ,  H04Q7/20

CPC分类号： H04W64/00 ,  H04W84/12

摘要： A method and system for detecting the position of a mobile unit efficiently and with high precision in a multipath environment. A wireless position detection system made up of a mobile station containing a wireless communication means to allow sending and receiving multiple to and from mutually different antenna positions and, a base station for performing wireless communication with mobile stations containing a wireless communication means and, multiple wireless receivers for receiving each of the multiple signals sent by the wireless communication means between the base stations and, a server for detecting the position of the mobile station from each wireless receiver and from the position of the base station, and the time relating to received signals measured by the multiple wireless receivers.

摘要翻译： 一种用于在多路径环境中有效且高精度地检测移动单元的位置的方法和系统。 一种由包含无线通信装置的移动站组成的无线位置检测系统，用于允许从互相不同的天线位置发送和接收多个天线;以及基站，用于与包含无线通信装置的移动站进行无线通信，以及多个无线 用于接收由基站之间的无线通信装置发送的多个信号中的每一个的接收机，以及用于从每个无线接收机检测移动台的位置和从基站的位置检测移动台的位置的服务器以及与接收信号有关的时间 由多个无线接收机测量。