公开(公告)号：US08180300B2

公开(公告)日：2012-05-15

申请号：US12474710

申请日：2009-05-29

申请人： Hiroaki Takano ,  Ryou Sawai

发明人： Hiroaki Takano ,  Ryou Sawai

IPC分类号： H04B17/00

CPC分类号： H04B17/21

摘要： A wireless communication apparatus includes a plurality of antenna branches through which radio signals are transmitted and received; a calibration factor acquiring unit that acquires a calibration factor for compensating an unbalance of phase and amplitude between the antenna branches for every predetermined frequency band; a factor memory storing the calibration factor acquired for every predetermined frequency band; a reliability determining unit that determines a reliability of the calibration factor acquired by the calibration factor acquiring unit; and a calibration factor multiplying unit that reads out the calibration factor from the factor memory to multiply a transmission signal or a reception signal to be calibrated by the readout calibration factor.

摘要翻译： 无线通信装置包括发送和接收无线电信号的多个天线分支; 校准因子获取单元，用于获取用于补偿每个预定频带的天线分支之间的相位和幅度不平衡的校准因子; 存储存储针对每个预定频带获取的校准因子的因子存储器; 可靠性确定单元，确定由校准因子获取单元获取的校准因子的可靠性; 以及校准因子乘法单元，其从因子存储器读出校准因子，以乘以通过读出校准因子来校准的发送信号或接收信号。

公开(公告)号：US08185074B2

公开(公告)日：2012-05-22

申请号：US12473404

申请日：2009-05-28

申请人： Seiichi Izumi ,  Hiroaki Takano ,  Ryou Sawai ,  Tomoya Yamaura ,  Masanori Sato

发明人： Seiichi Izumi ,  Hiroaki Takano ,  Ryou Sawai ,  Tomoya Yamaura ,  Masanori Sato

IPC分类号： H04B1/06 ,  H04B7/00

CPC分类号： H04B7/084

摘要： There is provided a receiving apparatus including a plurality of antennas, a phase difference detection unit to detect a phase difference of each of a plurality of received signals received by the plurality of antennas, a phase adjustment unit to align phase of the plurality of received signals based on the phase difference detected by the phase difference detection unit, an adding unit to add the plurality of received signals with the phase aligned by the phase adjustment unit together, and a synchronous detection unit to perform synchronous detection using a signal obtained by addition in the adding unit.

摘要翻译： 提供了一种包括多个天线的接收装置，相位差检测单元，用于检测由多个天线接收的多个接收信号中的每一个的相位差;相位调整单元，用于调整多个接收信号的相位 基于由所述相位差检测单元检测出的相位差，添加单元，将由所述相位调整单元相位对准的所述多个接收信号相加在一起;同步检测单元，使用通过加法获得的信号进行同步检测; 添加单元。

公开(公告)号：US08064502B2

公开(公告)日：2011-11-22

申请号：US12477573

申请日：2009-06-03

申请人： Ryou Sawai ,  Hiroaki Takano

发明人： Ryou Sawai ,  Hiroaki Takano

IPC分类号： H04B1/38 ,  H04L5/16

CPC分类号： H04L25/03343 ,  H04B17/12 ,  H04B17/21 ,  H04L1/0025 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/0618 ,  H04L25/03006 ,  H04L2025/03414 ,  H04L2025/03426

摘要： A wireless communication apparatus compensates for phase and amplitude imbalances existing among transmit and receive branches, while also preventing likelihood information and SNR estimation error produced by such imbalance compensation. In an apparatus having a plurality of transmit and receive antennas and respective branches for each antenna, a calibration processor multiplies receive signals in each receive branch by antenna calibration coefficients, in order to correct phase and amplitude imbalances existing among the receive branches. A transmit beamforming matrix estimator then estimates a transmit beamforming matrix by using the multiplied receive signals. An estimator then solves for estimated values such as the noise power, likelihood information, and channel waveform equalization values for each receive branch, and in addition, derives a final estimated value that takes the multiplication by correction coefficients into account when averaging the estimated values for each receive branch or when computing a weighted average according to likelihood.

摘要翻译： 无线通信装置补偿发送和接收分支之间存在的相位和幅度不平衡，同时还防止由这种不平衡补偿产生的似然信息和SNR估计误差。 在具有多个发射和接收天线以及每个天线的相应分支的装置中，校准处理器将每个接收分支中的接收信号乘以天线校准系数，以校正存在于接收分支之间的相位和幅度不平衡。 然后，发射波束成形矩阵估计器通过使用相乘的接收信号来估计发射波束形成矩阵。 估计器然后解决诸如每个接收分支的噪声功率，似然信息和信道波形均衡值的估计值，并且另外，导出最终估计值，其在将估计值估计值平均时考虑校正系数乘以的最终估计值 每个接收分支或根据可能性计算加权平均值。

公开(公告)号：US20090305629A1

公开(公告)日：2009-12-10

申请号：US12473404

申请日：2009-05-28

申请人： Seiichi Izumi ,  Hiroaki Takano ,  Ryou Sawai ,  Tomoya Yamaura ,  Masanori Sato

发明人： Seiichi Izumi ,  Hiroaki Takano ,  Ryou Sawai ,  Tomoya Yamaura ,  Masanori Sato

IPC分类号： H04B7/24 ,  H04B1/06

CPC分类号： H04B7/084

摘要： There is provided a receiving apparatus including a plurality of antennas, a phase difference detection unit to detect a phase difference of each of a plurality of received signals received by the plurality of antennas, a phase adjustment unit to align phase of the plurality of received signals based on the phase difference detected by the phase difference detection unit, an adding unit to add the plurality of received signals with the phase aligned by the phase adjustment unit together, and a synchronous detection unit to perform synchronous detection using a signal obtained by addition in the adding unit.

摘要翻译： 提供了一种包括多个天线的接收装置，相位差检测单元，用于检测由多个天线接收的多个接收信号中的每一个的相位差;相位调整单元，用于调整多个接收信号的相位 基于由所述相位差检测单元检测出的相位差，添加单元，将由所述相位调整单元相位对准的所述多个接收信号相加在一起;同步检测单元，使用通过加法获得的信号进行同步检测; 添加单元。

公开(公告)号：US09521660B2

公开(公告)日：2016-12-13

申请号：US13819346

申请日：2011-08-11

申请人： Atsushi Yoshizawa ,  Hiroaki Takano

发明人： Atsushi Yoshizawa ,  Hiroaki Takano

IPC分类号： H04W72/04 ,  H04W74/00 ,  H04W4/00 ,  H04W4/08

CPC分类号： H04W72/0406 ,  H04W4/08 ,  H04W4/70 ,  H04W74/008

摘要： There is provided a base station including a receiving section that receives information on a plurality of wireless terminals from a representative wireless terminal representing the plurality of wireless terminals, a control information setting section that sets control information for controlling random access by the plurality of wireless terminals based on the information on the plurality of wireless terminals received by the receiving section, and a transmitting section that transmits the control information set by the control information setting section to the plurality of wireless terminals.

摘要翻译： 提供了一种基站，包括从表示多个无线终端的代表无线终端接收关于多个无线终端的信息的接收部分，控制信息设置部分，其设置用于控制多个无线终端的随机接入的控制信息 基于由所述接收部接收的所述多个无线终端的信息，以及发送部，其将由所述控制信息设定部设定的控制信息发送给所述多个无线终端。

公开(公告)号：US09374838B2

公开(公告)日：2016-06-21

申请号：US13514163

申请日：2010-12-02

申请人： Hiroaki Takano ,  Yuichi Morioka ,  Ryo Sawai

发明人： Hiroaki Takano ,  Yuichi Morioka ,  Ryo Sawai

IPC分类号： H04W74/00 ,  H04W74/08 ,  H04W36/00 ,  H04W36/18 ,  H04W36/30 ,  H04W56/00 ,  H04W72/14 ,  H04L1/16

CPC分类号： H04W36/08 ,  H04W24/02 ,  H04W36/00 ,  H04W36/0016 ,  H04W36/0088 ,  H04W36/30 ,  H04W56/001 ,  H04W72/0453 ,  H04W74/004 ,  H04W74/008 ,  H04W74/0833 ,  H04W88/08

摘要： A mobile station in a wireless communication network. The mobile station includes a radio communication that transmits an access request message to a base station via a first communication resource, and receives a timing adjustment in response to the access request message from the base station. The mobile station also includes an adjustment value storage unit that stores the timing adjustment, and a control unit that adjusts access timing corresponding to a second communication resource based on the timing adjustment value stored in the adjustment value storage unit. The radio communication unit then communicates with the base station via the first communication resource and the second communication resource.

摘要翻译： 无线通信网络中的移动台。 移动站包括：无线电通信，其经由第一通信资源向基站发送接入请求消息，并且响应于来自基站的接入请求消息接收定时调整。 移动站还包括存储定时调整的调整值存储单元，以及控制单元，其基于存储在调整值存储单元中的定时调整值来调整与第二通信资源相对应的访问定时。 然后，无线电通信单元经由第一通信资源和第二通信资源与基站进行通信。

公开(公告)号：US09337971B2

公开(公告)日：2016-05-10

申请号：US14113235

申请日：2012-04-16

申请人： Hiroaki Takano

发明人： Hiroaki Takano

IPC分类号： H04L5/00 ,  H04W72/08

CPC分类号： H04L5/0032 ,  H04W72/082

摘要： An allocation of wireless resources is performed to avoid interference caused as an uplink and a downlink are mismatched between neighboring cells. When interference at a base station is desired to be reduced, in each portion causing interference at a base station side, an ABS is applied to any one of downlink and uplink sub frames. When interference at a terminal is desired to be reduced, in each portion causing interference at a terminal side, transmission or reception of a terminal is stopped. When both interference at a base station side and interference at a terminal side are desired to be reduced, basically, it is desirable to stop the same portion as when interference between base stations is reduced.

摘要翻译： 执行无线资源的分配以避免作为上行链路造成的干扰，并且下行链路在相邻小区之间不匹配。 当希望减少在基站处的干扰时，在每个部分引起基站侧的干扰的情况下，将ABS应用于下行链路和上行链路子帧中的任何一个。 当期望减少终端的干扰时，在终端侧的每个部分中引起干扰，停止终端的发送或接收。 当希望基站侧的干扰和终端侧的干扰都降低时，基本上希望停止与基站之间的干扰相同的部分。

公开(公告)号：US09282583B2

公开(公告)日：2016-03-08

申请号：US13641752

申请日：2011-05-19

申请人： Hiroaki Takano

发明人： Hiroaki Takano

IPC分类号： H04W76/02 ,  H04W92/20

CPC分类号： H04W76/023 ,  H04W76/14 ,  H04W92/20

摘要： There is provided a base station including a communication unit for communicating with a user equipment according to a frame format where subframes for uplink and subframes for downlink are structured in a time division manner, and a scheduler for moving a boundary between a subframe for downlink and a subframe for uplink. The communication unit wirelessly communicates with another base station by using a subframe between the boundary before movement by the scheduler and the boundary after the movement.

摘要翻译： 提供了一种基站，包括：用于与用户设备通信的通信单元，所述通信单元根据帧格式进行通信，所述帧格式以时分方式构成用于上行链路和下行链路的子帧的子帧，以及调度器，用于移动用于下行链路的子帧和 用于上行链路的子帧。 通信单元通过使用由调度器移动之前的边界和移动后的边界之间的子帧与另一个基站无线通信。

公开(公告)号：US09225487B2

公开(公告)日：2015-12-29

申请号：US14113749

申请日：2012-04-16

申请人： Hiroaki Takano

发明人： Hiroaki Takano

IPC分类号： H04W72/04 ,  H04L5/00 ,  H04W72/08 ,  H04L5/14

CPC分类号： H04L5/0037 ,  H04L5/0073 ,  H04L5/1469 ,  H04W72/082

摘要： Inter-cell interference is avoided in a cellular system operated in a TDD scheme. An order of a plurality of configurations are rearranged in the ascending order of the number of downlink sub frames and in the descending order of the number of uplink sub frames, and configurations are switched between neighboring cells according to the rearranged order when different configurations are used in the neighboring cells. Further, an order of at least some configurations is further rearranged so that interference between adjacent configurations is reduced while maintaining the ascending order of the number of downlink sub frames.

摘要翻译： 在TDD方案中操作的蜂窝系统中避免了小区间干扰。 多个配置的顺序按照下行链路子帧的数量的升序排列，并按照上行链路子帧的数量的降序重新排列，并且当使用不同的配置时，根据重新排列的顺序在相邻的小区之间切换配置 在相邻的单元格中。 此外，至少一些配置的顺序被进一步重新排列，使得相邻配置之间的干扰减小，同时保持下行链路子帧的数量的升序。

公开(公告)号：US09077395B2

公开(公告)日：2015-07-07

申请号：US13580171

申请日：2011-02-21

申请人： Hiroaki Takano

发明人： Hiroaki Takano

IPC分类号： H04B17/00 ,  H04B7/02 ,  H04B17/21

CPC分类号： H04B7/024 ,  H04B17/21

摘要： Provided is a base station including a plurality of branches that perform CoMP transmission with another base station, a multiplying unit that multiplies a transmission signal from each of the plurality of branches by a calibration coefficient of each of the plurality of branches, wherein the calibration coefficient is a coefficient obtained by adjusting an individual calibration coefficient acquired by branch calibration between the plurality of branches in the base station based on a branch calibration result between a branch of the base station and a branch of the other base station.

摘要翻译： 提供了一种包括与另一基站执行CoMP传输的多个分支的基站，乘法单元，用于将来自多个分支中的每一个的发送信号乘以多个分支中的每一个的校准系数，其中校准系数 是通过基于基站的分支与另一个基站的分支之间的分支校准结果调整在基站的多个分支之间通过分支校准而获得的各个校准系数而获得的系数。