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1.发明申请FREQUENCY ASSIGNMENT DEVICE, FREQUENCY ASSIGNMENT METHOD AND WIRELESS COMMUNICATION SYSTEM 审中-公开频率分配装置，频率分配方法和无线通信系统公开(公告)号：US20170013474A1
公开(公告)日：2017-01-12
申请号：US15272891
申请日：2016-09-22
Applicant: FUJITSU LIMITED
Inventor： Kazuaki Ando , Hiroyuki Seki
CPC classification number: H04W16/28 , H04W16/14 , H04W24/02 , H04W28/16 , H04W72/0453 , H04W72/082 , H04W76/16
Abstract: A processor configured to select a first propagation scheme when a distance over which a radio wave transmitted from a transmission device in the second system at a frequency not used by the first system can travel from a position of the transmission device is greater than a threshold, and select a second propagation scheme resulting in a propagation distance smaller than a propagation distance of the first propagation scheme when the distance over which the radio wave can travel is smaller than the threshold. The processor configured to calculate a propagation distance of the transmission radio wave by using a propagation scheme selected by the selection unit, and to determine that the second system can utilize the transmission radio wave when a propagation distance of the transmission device does not reach a propagation scope of a radio wave of a frequency that can be used by the first system.
Abstract translation: 一种处理器，被配置为当以第一系统不使用的频率从第二系统中的传输设备发送的无线电波从传输设备的位置行进的距离大于阈值时，选择第一传播方案， 并且当无线电波可以行进的距离小于阈值时，选择导致传播距离小于第一传播方案的传播距离的传播距离。 所述处理器被配置为通过使用由所述选择单元选择的传播方案来计算所述传输无线电波的传播距离，并且当所述传输设备的传播距离未达到传播时确定所述第二系统可以利用所述传输无线电波 可以由第一系统使用的频率的无线电波的范围。
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公开(公告)号：US09019980B2
公开(公告)日：2015-04-28
申请号：US14481487
申请日：2014-09-09
Applicant: Fujitsu Limited
Inventor： Hiroyuki Seki
CPC classification number: H04W72/0406 , H04B7/0413 , H04L1/0001 , H04L1/0006 , H04L1/0025 , H04L1/0029 , H04L1/003 , H04L1/0075 , H04L1/1812 , H04L5/1453 , H04W52/262 , H04W72/00 , H04W72/042
Abstract: A method used in a communication system including a base station and a terminal, the method includes: transmitting from the base station to the terminal a control channel with use of a control channel format selected from among a plurality of control channel formats, each including modulation scheme information, according to whether Multiple Input Multiple Output (MIMO) transmission is applied or not, and receiving the control channel by the terminal, wherein a number of bits indicating a modulation scheme included in a control channel format to be selected when the MIMO transmission is applied is greater than that included in a control channel format to be selected when the MIMO transmission is not applied.
Abstract translation: 一种在包括基站和终端的通信系统中使用的方法，所述方法包括：使用从多个控制信道格式中选择的控制信道格式，从基站向终端发送控制信道，每个控制信道格式包括调制 方案信息，根据是否应用多输入多输出（MIMO）传输，以及由终端接收控制信道，其中指示在MIMO传输时要选择的控制信道格式中包括的调制方案的比特数 被应用大于在不应用MIMO传输时要选择的控制信道格式中包含的格式。
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3.发明申请WIRELESS COMMUNICATION METHOD, WIRELESS COMMUNICATION SYSTEM, BASE STATION, AND WIRELESS TERMINAL 有权无线通信方法，无线通信系统，基站和无线终端公开(公告)号：US20150072692A1
公开(公告)日：2015-03-12
申请号：US14546593
申请日：2014-11-18
Applicant: FUJITSU LIMITED
Inventor： Hiroyuki Seki
CPC classification number: H04W52/0206 , H04W36/0072 , H04W36/165 , H04W52/0245 , H04W52/143 , H04W52/282 , H04W52/34 , H04W52/343 , H04W52/40 , Y02D70/1262 , Y02D70/1264
Abstract: A wireless communication method includes: transmitting, by a base station, a signal subjected to reduction of transmission power that is reduced compared with specific transmission power of the base station; and giving notice of, by a wireless terminal, when the wireless terminal detects a signal of the base station, a reduction cancellation request to the base station based on information relating to the reduction of the transmission power of the base station and a reception level of the signal of the base station, the reduction cancellation request being used for cancelling the reduction of the transmission power in the base station.
Abstract translation: 无线通信方法包括：由基站发送与基站的特定发送功率相比减少发送功率降低的信号; 并且通过无线终端通知无线终端在无线终端检测到基站的信号时，基于与基站的发送功率的降低有关的信息到基站的减少取消请求，以及基站的接收电平 基站的信号，减少取消请求被用于抵消基站中发送功率的降低。
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公开(公告)号：US08737341B2
公开(公告)日：2014-05-27
申请号：US13720270
申请日：2012-12-19
Applicant: Fujitsu Limited
Inventor： Hiroyuki Seki
IPC: H04W4/00
CPC classification number: H04W72/0406 , H04B7/0413 , H04L1/0001 , H04L1/0006 , H04L1/0025 , H04L1/0029 , H04L1/003 , H04L1/0075 , H04L1/1812 , H04L5/1453 , H04W52/262 , H04W72/00 , H04W72/042
Abstract: A terminal that includes a control channel demodulating part configured to have a control channel format notified from a base station which transmits a control channel with the use of the control channel format, selected from among a plurality of control channel formats, each including modulation scheme information, having different number of types of control parameters according to whether Multiple Input Multiple Output (MIMO) transmission is applied or not, and demodulate the control channel received from the base station; and a data channel demodulating part configured to demodulate a data channel received from the base station with the use of a result of the demodulation of the control channel carried out by the control channel demodulating part, and when the number of bits indicating a modulation scheme selected format when the MIMO transmission is applied is greater than when the MIMO transmission is not applied.
Abstract translation: 一种终端，其包括：控制信道解调部，被配置为具有从基站通知的控制信道格式，所述控制信道格式从使用控制信道格式发送控制信道，所述控制信道格式从多个控制信道格式中选出，每个控制信道格式包括调制方案信息 根据是否应用多输入多输出（MIMO）传输，具有不同数量的控制参数，并解调从基站接收的控制信道; 以及数据信道解调部，其被配置为使用由所述控制信道解调部执行的控制信道的解调结果来解调从所述基站接收的数据信道，并且当指示选择的调制方案的比特数 当应用MIMO传输时的格式大于不应用MIMO传输时的格式。
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公开(公告)号：US10523298B2
公开(公告)日：2019-12-31
申请号：US15835611
申请日：2017-12-08
Applicant: FUJITSU LIMITED
Inventor： Daisuke Jitsukawa , Takashi Dateki , Hiroyuki Seki
Abstract: A method performed by a transmission device and a reception device in a wireless communication system, the method including: executing a process for receiving a reference signal, which is transmitted from each of plural transmit antennas of the transmission device, through a specific receive antenna which is one of at least one receive antenna of the reception device; executing a process for deciding a transmit antenna weight and a receive antenna weight based on the reference signal, the transmit antenna weight and the receive antenna weight being applied in a case where only the specific receive antenna receives a signal which is transmitted by each of the plural transmit antennas based on same transmission data; and executing a process for transmitting first information about the transmit antenna weight and second information about the receive antenna weight to the transmission device.
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Patent Agency Ranking
公开(公告)号：US20160353286A1
公开(公告)日：2016-12-01
申请号：US15232399
申请日：2016-08-09
Applicant: FUJITSU LIMITED
Inventor： Yoshiharu Tajima , Tsuyoshi Shimomura , Hiroyuki Seki
IPC: H04W16/14 , H04B17/318 , H04W72/08
CPC classification number: H04W16/14 , H04B17/318 , H04W48/18 , H04W72/082 , H04W74/0808
Abstract: A wireless communication device is in a communication system that includes a first wireless system employing a first communication method in which communication is started when a sensed power value is smaller than a first set value of a threshold, and includes a second wireless system employing a second communication method in which communication is performed by scheduling performed by a base station. The wireless communication device employs the first communication method. The wireless communication device includes: a processor that executes a process including: determining presence or absence of interference from the second wireless system based on information received from a different wireless communication device employing the first communication method; and changing the threshold to a second set value when it is determined that there is the interference.
Abstract translation: 无线通信装置在通信系统中，包括采用第一通信方法的第一无线系统，其中当感测到的功率值小于阈值的第一设定值时，开始通信，并且包括采用第二通信方法的第二无线系统 通过由基站进行的调度进行通信的通信方式。 无线通信装置采用第一通信方式。 所述无线通信装置包括：处理器，其执行处理，所述处理包括：基于从采用所述第一通信方法的不同无线通信装置接收的信息来确定来自所述第二无线系统的干扰的存在或不存在; 以及当确定存在所述干扰时，将所述阈值改变为第二设定值。
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7.发明授权Pilot arrangement method in mobile radio communication system and transmitter/receiver adopting same 有权采用移动无线通信系统的发射机/接收机的导频排列方法公开(公告)号：US09485067B2
公开(公告)日：2016-11-01
申请号：US13970015
申请日：2013-08-19
Applicant: FUJITSU LIMITED
Inventor： Kenji Suda , Hiroyuki Seki
CPC classification number: H04L5/0048 , H04L5/0005 , H04L5/0007 , H04L5/005 , H04W72/0413
Abstract: A mobile communication system in which a working frequency band is divided into a plurality of predetermined frequency bands, and time division multiplexing is performed, the mobile communication system includes a base station to insert a known pilot symbol into the plurality of predetermined frequency bands at a predetermined reference interval, and to insert to arrange the known pilot symbol into at least one of the plurality of predetermined bands at a smaller interval than the predetermined reference interval, wherein a frequency band in which the known pilot symbol is inserted at a smaller interval than the predetermined reference interval is to be set cyclically in time; and a mobile terminal to receive the known pilot symbol transmitted from the base station.
Abstract translation: 一种移动通信系统，其中工作频带被划分为多个预定频带，并且执行时分复用，所述移动通信系统包括：基站，用于将已知导频符号插入到多个预定频带中 预定的参考间隔，并且以比预定参考间隔更小的间隔将已知导频符号排列成多个预定频带中的至少一个，其中以较小间隔插入已知导频符号的频带， 预定的参考间隔将在时间上周期性地设定; 以及移动终端，用于接收从基站发送的已知导频符号。
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公开(公告)号：US09432976B2
公开(公告)日：2016-08-30
申请号：US14663036
申请日：2015-03-19
Applicant: FUJITSU LIMITED
Inventor： Hiroyuki Seki
CPC classification number: H04W72/0406 , H04B7/0413 , H04L1/0001 , H04L1/0006 , H04L1/0025 , H04L1/0029 , H04L1/003 , H04L1/0075 , H04L1/1812 , H04L5/1453 , H04W52/262 , H04W72/00 , H04W72/042
Abstract: A method used by a terminal in a wireless communication system, the method includes: receiving a control channel transmitted from a base station with use of a control channel format selected from among a plurality of control channel formats, each including modulation scheme information, according to whether Multiple Input Multiple Output (MIMO) transmission is applied or not, and wherein a number of bits indicating a modulation scheme included in a control channel format to be selected when the MIMO transmission is applied is greater than that included in a control channel format to be selected when the MIMO transmission is not applied.
Abstract translation: 一种终端在无线通信系统中使用的方法，所述方法包括：使用从多个控制信道格式中选择的控制信道格式接收从基站发送的控制信道，每个控制信道格式包括调制方案信息，根据 是否应用多输入多输出（MIMO）传输，并且其中指示在应用MIMO传输时要选择的控制信道格式中包括的调制方案的比特数大于包括在控制信道格式 当不应用MIMO传输时被选择。
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9.发明申请公开(公告)号：US20180102824A1
公开(公告)日：2018-04-12
申请号：US15835611
申请日：2017-12-08
Applicant: FUJITSU LIMITED
Inventor： Daisuke JITSUKAWA , TAKASHI DATEKI , Hiroyuki Seki
IPC: H04B7/06
Abstract: A method performed by a transmission device and a reception device in a wireless communication system, the method including: executing a process for receiving a reference signal, which is transmitted from each of plural transmit antennas of the transmission device, through a specific receive antenna which is one of at least one receive antenna of the reception device; executing a process for deciding a transmit antenna weight and a receive antenna weight based on the reference signal, the transmit antenna weight and the receive antenna weight being applied in a case where only the specific receive antenna receives a signal which is transmitted by each of the plural transmit antennas based on same transmission data; and executing a process for transmitting first information about the transmit antenna weight and second information about the receive antenna weight to the transmission device.
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公开(公告)号：US09408088B2
公开(公告)日：2016-08-02
申请号：US13790029
申请日：2013-03-08
Applicant: FUJITSU LIMITED
Inventor： Kotaro Shiizaki , Hiroyuki Seki , Kenji Suda , Daisuke Jitsukawa
CPC classification number: H04W24/02 , H04L1/0003 , H04L1/0009 , H04L1/0028 , H04L1/0031 , H04L1/0038 , H04L1/0079 , H04L1/0088
Abstract: A wireless communication system including a transmitting and receiving device that performs communications with the transmitting device, using a radio frame containing control information and data, wherein the transmitting device includes: a first generating unit that generates first control information able to be estimated by the receiving device; a second generating unit that generates second control information used for control of communication from the receiving device to the transmitting device and unable to be estimated by the receiving device; a multiplexing unit that multiplexes the control and data information so that the first control information is allocated in the control information and the second control information is allocated in the data in the radio frame; a transmitting unit a signal multiplexed by the multiplexing unit; the receiving device includes a receiving unit that receives the signal wherein the second control information is allocated in the data from the transmitting device.
Abstract translation: 一种无线通信系统，包括使用包含控制信息和数据的无线帧与所述发送装置进行通信的发送和接收装置，其中，所述发送装置包括：第一生成单元，其生成能够由所述接收来估计的第一控制信息 设备; 第二生成单元，其生成用于从所述接收装置到所述发送装置的通信的控制的第二控制信息，并且不能被所述接收装置估计; 复用单元，其将控制信息和数据信息进行多路复用，使得在控制信息中分配第一控制信息，并将第二控制信息分配给无线电帧中的数据; 发送单元，由复用单元复用的信号; 接收装置包括接收单元，接收单元，其接收来自发送设备的数据中分配了第二控制信息的信号。
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