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    Wireless communication apparatus, wireless communication system and wireless communication method
    41.
    发明授权
    Wireless communication apparatus, wireless communication system and wireless communication method 有权
    无线通信装置，无线通信系统及无线通信方式

    公开(公告)号：US08588321B2

    公开(公告)日：2013-11-19

    申请号：US12809701

    申请日：2008-10-23

    申请人： Masayuki Hoshino ,  Katsuhiko Hiramatsu ,  Kenichi Miyoshi

    发明人： Masayuki Hoshino ,  Katsuhiko Hiramatsu ,  Kenichi Miyoshi

    IPC分类号： H04K1/10

    CPC分类号： H04B7/0452 ,  H04B7/0417 ,  H04B7/0426 ,  H04B7/0632 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0036 ,  H04W72/08

    摘要： When power scaling is applied to multi-user MIMO, a reduction in transmission rate is suppressed and transmission efficiency is improved. When signals are transmitted through spatial multiplexing from a wireless base station 11 to a plurality of pieces of user equipment 12 and 13, notification of a transmission parameter (MCS) of the distant user equipment (UE-B) 13 is provided as control information to the adjacent user equipment (UE-A) 12. The user equipment 12 calculates, based on the received control information, a reception quality (CQI) after cancellation of a signal serving as an interference signal and destined for the other user equipment 13, and feeds back the calculated result to the wireless base station 11. Based on this feedback, the wireless base station 11 sets a transmission parameter (MCS) of each piece of the user equipment 12 and 13 using the CQI after the cancellation, and transmits signals intended for respective users through spatial multiplexing after performing power distribution between the users by power scaling.

    摘要翻译： 当对多用户MIMO进行功率缩放时，传输速率的降低被抑制并且传输效率提高。 当通过空中复用将信号从无线基站11发送到多个用户设备12和13时，提供远程用户设备（UE-B）13的传输参数（MCS）的通知作为控制信息 相邻用户设备（UE-A）12。用户设备12基于接收到的控制信息计算在用作干扰信号并发往另一用户设备13的信号的消除之后的接收质量（CQI），以及 将计算结果反馈给无线基站11.基于该反馈，无线基站11在消除之后使用CQI来设置用户设备12和13的每一段的传输参数（MCS），并发送预期的信号 通过功率缩放在用户进行功率分配之后通过空间复用对各个用户进行。

    Base station apparatus, mobile apparatus, and communication method
    42.
    发明授权
    Base station apparatus, mobile apparatus, and communication method 有权
    基站装置，移动装置和通信方法

    公开(公告)号：US08467723B2

    公开(公告)日：2013-06-18

    申请号：US13585621

    申请日：2012-08-14

    申请人： Yoshiko Saito ,  Takashi Aramaki ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu ,  Hidetoshi Suzuki ,  Jun Hirano

    发明人： Yoshiko Saito ,  Takashi Aramaki ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu ,  Hidetoshi Suzuki ,  Jun Hirano

    IPC分类号： H04Q7/20

    CPC分类号： H04W16/26 ,  H04B7/15507 ,  H04W16/24 ,  H04W48/08 ,  H04W84/047

    摘要： A mobile communication system includes a plurality of RAT (Radio Access Technology) and can eliminate the need of a control channel for reporting RAT information. An LTE relay station has a cover area identical to a cover area owned by a WLAN host station and relays/transmits the signal received from an LTE base station to a mobile station in the cover area of the LTE relay station. The LTE relay station adds to the signal received from the LTE base station, one of the offsets: a frequency offset, a time offset, and a power offset as information indicating that the mobile station which receives a relay signal from the local station is located in the cover area of WLAN and transmits the signal after offset addition to the mobile station located in the cover area of the LTE relay station (i.e., the cover area of WLAN).

    摘要翻译： 移动通信系统包括多个RAT（无线接入技术），并且可以消除用于报告RAT信息的控制信道的需要。 LTE中继站具有与WLAN主站所拥有的覆盖区域相同的覆盖区域，并且将从LTE基站接收的信号中继/发送到LTE中继站的覆盖区域中的移动站。 LTE中继站将从LTE基站接收到的信号添加到偏移中的一个：频偏，时间偏移和功率偏移，作为指示从本地站接收到中继信号的移动站位于 在WLAN的覆盖区域中，并且将偏移相加后的信号发送到位于LTE中继站的覆盖区域（即，WLAN的覆盖区域）的移动站。

    Radio communication system, radio communication device, and channel correlation matrix decision method
    46.
    发明授权
    Radio communication system, radio communication device, and channel correlation matrix decision method 有权
    无线电通信系统，无线电通信设备和信道相关矩阵决策方法

    公开(公告)号：US08081702B2

    公开(公告)日：2011-12-20

    申请号：US12280677

    申请日：2007-02-28

    申请人： Masayuki Hoshino ,  Kenichi Miyoshi ,  Yasuaki Yuda ,  Katsuhiko Hiramatsu ,  Ryohei Kimura

    发明人： Masayuki Hoshino ,  Kenichi Miyoshi ,  Yasuaki Yuda ,  Katsuhiko Hiramatsu ,  Ryohei Kimura

    IPC分类号： H04B7/02

    CPC分类号： H04B7/0626 ,  H04B7/0417 ,  H04B7/0434 ,  H04B7/063 ,  H04B7/0689

    摘要： It is possible to prevent lowering of a throughput of a radio communication system even when propagation path environments of an uplink line and downlink line are asymmetric. A maximum proper value calculation unit (115) calculates a maximum proper value from a channel matrix. A maximum proper value comparison unit (116) compares the maximum proper value with a maximum proper value of the downlink line reported separately from a base station. According to the comparison result obtained by the maximum proper value comparison unit (116), a proper mode initiative instruction unit (117) decides to pass the proper mode initiative to a communication partner or to the local device. When the initiative is to be passed to the local device, this fact is reported to a proper bam correction unit (118). When the proper beam correction unit (118) gets the proper mode initiative, the proper beam correction unit (118) corrects the correlation matrix by using the proper values of both of the downlink line and the uplink line and instructs a directivity forming unit (103) to form a proper beam according to the correlation matrix after the correction.

    摘要翻译： 即使上行链路和下行链路的传播路径环境不对称，也可以防止无线通信系统的吞吐量的降低。 最大适当值计算单元（115）从信道矩阵计算最大适当值。 最大适当值比较单元（116）将最大适当值与从基站分开报告的下行线路的最大适当值进行比较。 根据由最大适当值比较单元（116）获得的比较结果，正确的模式主动指示单元（117）决定将适当的模式主动通过通信对方或本地设备。 当该举措传递给本地设备时，这一事实报告给适当的巴姆纠正单位（118）。 当正确的光束校正单元（118）获得适当的模式主动时，适当的光束校正单元（118）通过使用下行链路线路和上行线路两者的适当值来校正相关矩阵，并且指示方向性形成单元（103 ）根据校正后的相关矩阵形成适当的波束。

    WIRELESS RECEIVER AND FEEDBACK METHOD
    47.
    发明申请
    WIRELESS RECEIVER AND FEEDBACK METHOD 审中-公开
    无线接收机和反馈方法

    公开(公告)号：US20110096877A1

    公开(公告)日：2011-04-28

    申请号：US12920030

    申请日：2009-03-05

    申请人： Ryohei Kimura ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu

    发明人： Ryohei Kimura ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu

    IPC分类号： H04L1/02

    CPC分类号： H04L1/003 ,  H04L1/0026 ,  H04L1/0029 ,  H04L1/06 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0248 ,  H04W72/0413 ,  H04W72/085

    摘要： Disclosed is a wireless receiver and feedback method for reducing the amount of CQI feedback in a MIMO channel. A channel estimation unit (103) uses a received pilot signal to estimate the channel matrix for each RB between respective transceiver antennas, and then performs eigenvalue decomposition of the estimated channel matrix to find eigenvalues and eigenvectors. A feedback data generator (104) is provided with a feedback bit table that correlates the number of quantized bits for the averaged CQI to be transmitted for each eigenvalue and the number of quantized bits for the CQI in each RB, and then reduces the number of quantized bits for the averaged CQI Xk commensurate with the magnitude of the eigenvalue number k. The feedback data generator (104) averages eigenvalues found by the channel estimator (103) for each RB, converts the averaged eigenvalue to a CQI for each eigenvalue number, and generates feedback data from the CQI for each eigenvalue with the number of quantized bits according to the feedback table.

    摘要翻译： 公开了一种用于减少MIMO信道中的CQI反馈量的无线接收机和反馈方法。 信道估计单元（103）使用接收到的导频信号来估计各个收发天线之间的每个RB的信道矩阵，然后执行所估计的信道矩阵的特征值分解以找到特征值和特征向量。 反馈数据生成器（104）具有将每个特征值要发送的平均CQI的量化比特数与每个RB中的CQI的量化比特数相关联的反馈比特表，然后减少 用于与特征值k的大小相称的平均CQI Xk的量化比特。 反馈数据生成器（104）对于每个RB对由信道估计器（103）找到的特征值进行平均，将每个特征值数的平均特征值转换为CQI，并且针对每个具有量化比特数的特征值的CQI生成反馈数据， 到反馈表。

    COMMUNICATION DEVICE, BASE STATION, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD
    48.
    发明申请
    COMMUNICATION DEVICE, BASE STATION, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD 有权
    通信设备，基站，通信系统和通信方法

    公开(公告)号：US20110096761A1

    公开(公告)日：2011-04-28

    申请号：US12921549

    申请日：2009-03-12

    申请人： Yoshiko Saito ,  Ayako Horiuchi ,  Seigo Nakao ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu ,  Yuichi Kobayakawa

    发明人： Yoshiko Saito ,  Ayako Horiuchi ,  Seigo Nakao ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu ,  Yuichi Kobayakawa

    IPC分类号： H04B7/00 ,  H04W4/00

    CPC分类号： H04L5/003 ,  H04B7/022 ,  H04B7/026 ,  H04B7/15592 ,  H04B7/2606 ,  H04L1/1812 ,  H04L1/1893 ,  H04L5/0035 ,  H04L2001/0097 ,  H04W72/0406 ,  H04W84/047

    摘要： There are provided a communication device, a base station, a communication system, and a communication method that make it possible to yield a diversity effect by cooperative relay without involvement of disproportionateness in data received by an eNB even when one of parties has unsuccessfully exchanged data. After received an ACK signal from a repeater 1, a repeater 2 which has transmitted a NACK signal in procedure 7 transmits data S2 to the eNB by use of its own resource, thereby making its own resource available for the repeater 1 (the repeater 2 does not use its own resource, and the repeater 1 uses the resource of the repeater 2). In procedures 8, the repeater 1 has received the NACK signal from the repeater 2 and subsequently transmits data S1 to the eNB by use of its own resource. Subsequently, the repeater 1 which has received the MACK signal in procedure 9 determines that the resource of the repeater 2 is available and transmits data P1 to the eNB by use of the resource of the repeater 2. In procedure 10, the repeater 1 transmits previously-generated data P2 to the eNB by use of its own resource.

    摘要翻译： 提供了一种通信设备，基站，通信系统和通信方法，其可以通过协同中继产生分集效应，而不涉及由eNB接收的数据中的不成比例，即使当一方有成功交换的数据 。 在从中继器1接收到ACK信号之后，在过程7中发送了NACK信号的中继器2通过使用其自己的资源向eNB发送数据S2，从而使其自己的资源可用于中继器1（中继器2 不使用自己的资源，中继器1使用中继器的资源2）。 在过程8中，中继器1已经从中继器2接收到NACK信号，并且随后利用自己的资源向eNB发送数据S1。 随后，在过程9中接收到MACK信号的中继器1确定中继器2的资源可用，并且通过使用中继器2的资源将数据P1发送到eNB。在过程10中，中继器1先前 生成的数据P2通过使用其自己的资源到eNB。

    WIRELESS COMMUNICATION DEVICE AND EMERGENCY SIGNAL TRANSMISSION METHOD
    50.
    发明申请
    WIRELESS COMMUNICATION DEVICE AND EMERGENCY SIGNAL TRANSMISSION METHOD 有权
    无线通信设备和应急信号传输方法

    公开(公告)号：US20100093304A1

    公开(公告)日：2010-04-15

    申请号：US12532341

    申请日：2008-03-28

    申请人： Kenichi Miyoshi ,  Ayako Horiuchi ,  Yuichi Kobayakawa ,  Katsuhiko Hiramatsu

    发明人： Kenichi Miyoshi ,  Ayako Horiuchi ,  Yuichi Kobayakawa ,  Katsuhiko Hiramatsu

    IPC分类号： H04M11/04

    CPC分类号： H04L5/0053 ,  H04L5/0007 ,  H04L27/2605 ,  H04W4/90 ,  H04W76/50

    摘要： Provided is a wireless communication device which can transmit an emergency signal without deteriorating data transmission efficiency. In the device, a modulating section (105) performs modulation processing to an emergency signal and generates an emergency signal symbol, an arranging section (106) arranges the emergency signal symbol at a frequency of a guard carrier wherein a normal signal is not arranged, a diffusion section (107) performs diffusion processing to the emergency signal symbol by using an emergency signal diffusion code, and a wireless transmission section (108) performs transmission processing to the diffused emergency signal symbol and transmits the symbol from an antenna (109).

    摘要翻译： 提供一种能够在不恶化数据传输效率的情况下发送紧急信号的无线通信装置。 在该装置中，调制部（105）对紧急信号进行调制处理，生成紧急信号符号，并将紧急信号符号排列在不布置正常信号的保护载波的频率上， 扩散部（107）通过使用紧急信号扩散码对紧急信号符号进行扩散处理，无线发送部（108）对扩散的紧急信号符号进行发送处理，并从天线（109）发送符号。