公开(公告)号：US20190068302A1

公开(公告)日：2019-02-28

申请号：US16103353

申请日：2018-08-14

申请人： FUJITSU LIMITED

发明人： Akihiro WADA ,  Teruhisa Ninomiya ,  Makoto HAMAMINATO ,  Hiromasa Yamauchi ,  Kaoru Yokoo ,  Kensuke SAWADA

IPC分类号： H04B17/318 ,  H04B17/391 ,  H04B17/27 ,  H04B17/29 ,  H04B17/21 ,  H04W4/02 ,  H04W64/00

摘要： An information processing apparatus includes a memory, and a processor coupled to the memory and configured to obtain location information indicating locations of a wireless transmitter and a wireless receiver, simulate a first power of a first reception signal at the wireless receiver in a condition that a radio signal is transmitted from the wireless transmitter, identify a first probability distribution model in accordance with the first reception signal, identify a first parameter of the first probability distribution model in accordance with the first power and a propagation environment defined by the locations of the wireless transmitter and the wireless receiver indicated by the location information, and based on the first probability distribution model using the first parameter, simulate a second power of a second reception signal at around the wireless receiver.

公开(公告)号：US09628249B2

公开(公告)日：2017-04-18

申请号：US14056598

申请日：2013-10-17

申请人： FUJITSU LIMITED

发明人： Kaoru Yokoo

IPC分类号： H04W72/04 ,  H04W74/02 ,  H04L5/00 ,  H04W72/12

CPC分类号： H04L5/0094 ,  H04W72/1242 ,  H04W74/02

摘要： A radio communication device includes: a receiver configured to receive a radio signal; and a processor coupled to the receiver, configured to switch between a first communication mode and a second communication mode in accordance with scheduling of allocation of a time slot to another radio communication device based on the radio signal, communication between the radio communication device and the another radio communication device being executed using time division multiplexing in the first communication mode, and communication between the radio communication device and the another radio communication device being executed using a competitive access method in the second communication mode.

公开(公告)号：US20160255655A1

公开(公告)日：2016-09-01

申请号：US14993227

申请日：2016-01-12

申请人： FUJITSU LIMITED

发明人： Kenichi NISHIKAWA ,  Kazuyuki Ozaki ,  Kaoru Yokoo ,  Hiroshi Fujita ,  HIROO URABE

IPC分类号： H04W74/08 ,  H04W4/00

CPC分类号： H04W4/005 ,  H04B7/086 ,  H04L1/0027 ,  H04L5/00 ,  H04W4/70 ,  H04W52/0216 ,  H04W52/0219 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/444

摘要： A wireless communication apparatus includes antenna elements, each receiving a first signal and a second signal, a first estimator that estimates first channel information of the first signal, a false signal generator that generates false signals that are equal in number to or greater in number than the number of the antenna elements, each of the false signals arriving from a unique direction that is different from a direction of arrival of the first signal, a weight generator that generates first weights, each being associated with a corresponding one of the false signals and forming a null in the direction of arrival of the first signal, a multiplier that multiplies a signals received by the respective antenna elements by the first weights to acquire weight-multiplied signals, and a second estimator that estimates second channel information of the second signal using the weight-multiplied signals.

摘要翻译： 无线通信装置包括各自接收第一信号和第二信号的天线元件，估计第一信号的第一信道信息的第一估计器，产生数量以上数量以上的误信号的伪信号， 所述天线元件的数量，每个所述伪信号从与所述第一信号的到达方向不同的唯一方向到达，所述权重发生器产生第一权重，每个权重发生器与所述假信号中的相应一个相关联， 在第一信号的到达方向上形成零点;乘法器，将由各个天线元件接收的信号乘以第一权重，以获取加权相乘信号;以及第二估计器，其使用第二估计器估计第二信号的第二信道信息 加权信号。

公开(公告)号：US09398600B2

公开(公告)日：2016-07-19

申请号：US13939990

申请日：2013-07-11

申请人： FUJITSU LIMITED

发明人： Tatsuya Kikuzuki ,  Kaoru Yokoo

IPC分类号： H04W72/12

CPC分类号： H04W72/1205 ,  H04W72/1221 ,  H04W72/1278

摘要： A calculation unit computes, based on subsequent information that is added to data transmitted from a terminal device and indicates the presence or absence of untransmitted data reserved in the terminal device when transmitting the data, the number of data in which untransmitted data exists among the certain number of data previously transmitted from the terminal device. A time slot assignment control unit controls the assigned size of a time slot to the terminal device based on the number of the data, in which untransmitted data exists, computed by the calculation unit. A data processing unit notifies the terminal device of the assigned size of the time slot determined by the time slot assignment control unit.

摘要翻译： 计算单元基于从终端装置发送的数据添加的后续信息，并且在发送数据时指示存在或不存在在终端装置中保留的未发送数据的计算单元中存在未确定的数据的数量 先前从终端设备发送的数据的数量。 时隙分配控制单元基于由计算单元计算的存在未发送数据的数据的数量，来控制到终端设备的时隙的分配大小。 数据处理单元向终端设备通知由时隙分配控制单元确定的时隙的分配大小。

公开(公告)号：US09756453B2

公开(公告)日：2017-09-05

申请号：US14993227

申请日：2016-01-12

申请人： FUJITSU LIMITED

发明人： Kenichi Nishikawa ,  Kazuyuki Ozaki ,  Kaoru Yokoo ,  Hiroshi Fujita ,  Hiroo Urabe

IPC分类号： H04W72/04 ,  H04W4/00 ,  H04W52/02 ,  H04L1/00 ,  H04L5/00

CPC分类号： H04W4/005 ,  H04B7/086 ,  H04L1/0027 ,  H04L5/00 ,  H04W4/70 ,  H04W52/0216 ,  H04W52/0219 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/444

摘要： A wireless communication apparatus includes antenna elements, each receiving a first signal and a second signal, a first estimator that estimates first channel information of the first signal, a false signal generator that generates false signals that are equal in number to or greater in number than the number of the antenna elements, each of the false signals arriving from a unique direction that is different from a direction of arrival of the first signal, a weight generator that generates first weights, each being associated with a corresponding one of the false signals and forming a null in the direction of arrival of the first signal, a multiplier that multiplies a signals received by the respective antenna elements by the first weights to acquire weight-multiplied signals, and a second estimator that estimates second channel information of the second signal using the weight-multiplied signals.

公开(公告)号：US10715263B2

公开(公告)日：2020-07-14

申请号：US16103353

申请日：2018-08-14

申请人： FUJITSU LIMITED

发明人： Akihiro Wada ,  Teruhisa Ninomiya ,  Makoto Hamaminato ,  Hiromasa Yamauchi ,  Kaoru Yokoo ,  Kensuke Sawada

IPC分类号： H04B17/318 ,  H04B17/391 ,  H04B17/27 ,  H04W64/00 ,  H04B17/21 ,  H04W4/02 ,  H04B17/29 ,  H04B17/26 ,  G01S1/04 ,  G01S5/02

摘要： An information processing apparatus includes a memory, and a processor coupled to the memory and configured to obtain location information indicating locations of a wireless transmitter and a wireless receiver, simulate a first power of a first reception signal at the wireless receiver in a condition that a radio signal is transmitted from the wireless transmitter, identify a first probability distribution model in accordance with the first reception signal, identify a first parameter of the first probability distribution model in accordance with the first power and a propagation environment defined by the locations of the wireless transmitter and the wireless receiver indicated by the location information, and based on the first probability distribution model using the first parameter, simulate a second power of a second reception signal at around the wireless receiver.

公开(公告)号：US09277479B2

公开(公告)日：2016-03-01

申请号：US14159017

申请日：2014-01-20

申请人： FUJITSU LIMITED

发明人： Kaoru Yokoo ,  Yoji Ohashi ,  Tatsuya Kikuzuki ,  Ichirou Ida ,  Kazumi Kasai

IPC分类号： H04W40/14 ,  H04W36/30 ,  H04L12/00 ,  H04W24/00 ,  H04L12/403 ,  A61B5/00 ,  H04L12/707 ,  H04L12/703 ,  H04B7/12 ,  H04L1/04 ,  H04L1/08 ,  H04B7/08 ,  H04W76/02 ,  H04L29/14 ,  G06F19/00

CPC分类号： H04W40/14 ,  A61B5/0028 ,  G06F19/3418 ,  H04B7/0802 ,  H04B7/12 ,  H04L1/04 ,  H04L1/08 ,  H04L1/1887 ,  H04L1/22 ,  H04L12/00 ,  H04L12/403 ,  H04L45/22 ,  H04L45/28 ,  H04L69/40 ,  H04W24/00 ,  H04W36/30 ,  H04W76/15 ,  H04W76/19

摘要： A wireless communication system includes first and second wireless communication apparatuses. The first wireless communication apparatus includes a plurality of communication units that perform communication in different frequency bands. The plurality of communication units transmits the same control signal and data in the different frequency bands to keep allocation of communication slots for the second wireless communication apparatus on a plurality of paths. When detecting a communication failure while connecting to and communicating with one communication unit through one path, the second wireless communication apparatus switches to another communication unit and continues the communication through another path.

摘要翻译： 无线通信系统包括第一和第二无线通信设备。 第一无线通信装置包括执行不同频带的通信的多个通信单元。 多个通信单元在不同频带中发送相同的控制信号和数据，以便在多个路径上保持第二无线通信装置的通信时隙的分配。 当在通过一个路径连接到一个通信单元并且与一个通信单元通信时检测到通信故障时，第二无线通信设备切换到另一个通信单元并且通过另一个路径继续通信。