公开(公告)号：US08774107B2

公开(公告)日：2014-07-08

申请号：US12293516

申请日：2007-03-20

Applicant: Masaru Fukuoka ,  Akihiko Nishio ,  Kenichi Miyoshi

Inventor： Masaru Fukuoka ,  Akihiko Nishio ,  Kenichi Miyoshi

IPC: H04W4/00 ,  H04B7/212 ,  H04L1/00 ,  H04W28/04

CPC classification number: H04L1/0003 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/1825 ,  H04L1/1887 ,  H04L1/1893 ,  H04L5/0032 ,  H04L5/006 ,  H04L27/2601 ,  H04W28/04 ,  Y02D50/10

Abstract: Provided is a retransmission method capable of improving reception quality in retransmission control. In this method, for the first transmission, LRB (Localized Resource Block) method is selected as a resource allocation method according to the CQI fed back from the mobile station. A frequency resource having the best reception quality according to the LRB format is allocated for the transmission data. For the second transmission, the same resource allocation method (LRB) as the first transmission is used and the transmission data is allocated fro the same frequency resource. For the third transmission, the resource allocation method is switched from the method of the first and the second transmission and transmission data is allocated to the frequency resource by using DRB (Distributed Resource Block) format.

Abstract translation: 提供了能够提高重发控制的接收质量的重发方法。 在该方法中，对于第一次发送，根据从移动台反馈的CQI，选择LRB（Localized Resource Block：方法）作为资源分配方法。 针对发送数据分配具有根据LRB格式的最佳接收质量的频率资源。 对于第二传输，使用与第一传输相同的资源分配方法（LRB），并且以相同的频率资源分配传输数据。 对于第三次传输，资源分配方法从第一和第二传输方式切换，并且通过使用DRB（分布式资源块）格式将传输数据分配给频率资源。

公开(公告)号：US08730939B2

公开(公告)日：2014-05-20

申请号：US13258996

申请日：2010-03-25

Applicant: Kenichi Miyoshi ,  Yoshiko Saito ,  Daichi Imamura

Inventor： Kenichi Miyoshi ,  Yoshiko Saito ,  Daichi Imamura

IPC: H04W56/00

CPC classification number: H04L25/0204 ,  H04J13/10 ,  H04L25/0226 ,  H04L25/0248

Abstract: Provided is a wireless transmitter capable of accurately specifying the number of multiplexed streams and correctly decoding the data signals when a preamble sequence transmitted from any antenna of a wireless transmitter is detected. In this device, a multiplex count determination unit (101) determines the number of streams used by the device itself from the same number of candidates as the number of spatially multiplexed streams. A sequence group generator (104) forms a plurality of preamble sequences into the same number of groups as the number of candidates, which is the number of streams. A sequence group selector (105) selects the group matching the number of streams determined by the multiplex count determination unit (101) from a plurality of groups. A preamble generator (106) selects the same number of preamble sequences as the number of streams in the group selected by the sequence group selector (105) and generates the preamble sequence used by the device itself.

Abstract translation: 提供一种当检测到从无线发射机的任何天线发送的前导码序列时，能够精确地指定多路复用流的数量并正确解码数据信号的无线发射机。 在该装置中，多路复用计数确定单元（101）从与空间多路复用流数相同的候选数量确定装置本身使用的流数。 序列组生成器（104）形成与作为流的数量的候选数相同数量的组的多个前同步码序列。 序列组选择器（105）从多个组中选择与由多路复用计数确定单元（101）确定的流数相匹配的组。 前导码生成器（106）选择与由序列组选择器（105）选择的组中的流的数量相同数量的前同步码序列，并生成由设备本身使用的前同步码序列。

公开(公告)号：US08693585B2

公开(公告)日：2014-04-08

申请号：US13599947

申请日：2012-08-30

Applicant: Daichi Imamura ,  Akihiko Nishio ,  Kenichi Kuri ,  Kenichi Miyoshi

Inventor： Daichi Imamura ,  Akihiko Nishio ,  Kenichi Kuri ,  Kenichi Miyoshi

IPC: H04L27/06

CPC classification number: H04L25/0202 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0048 ,  H04L27/2611

Abstract: A wireless communication apparatus and a wireless communication method wherein even when the permissible delay amount of data is small, the permissible delay thereof can be satisfied. A data type determining part (101) determines whether the delay of transport data or control information should be allowed or not. A pilot signal insertion control part (102) decides, based on pilot insertion interval information and allowable delay information, that a pilot signal is placed adjacently to data that is not allowed to delay. A multiplexing part (106) multiplexes encoded and modulated transport data with the pilot signal generated by a pilot signal generating part (105) in such a manner that realizes the placement decided by the pilot signal insertion control part (102).

Abstract translation: 一种无线通信装置和无线通信方法，其中即使当允许的数据延迟量小时，也可以满足其允许的延迟。 数据类型确定部分（101）确定是否允许传输数据或控制信息的延迟。 导频信号插入控制部（102）根据导频插入间隔信息和容许延迟信息，判定导频信号与不允许延迟的数据相邻配置。 复用部分（106）以编码和调制的传输数据与由导频信号产生部分（105）产生的导频信号以实现由导频信号插入控制部分（102）确定的布局的方式进行复用。

公开(公告)号：US08681686B2

公开(公告)日：2014-03-25

申请号：US13574980

申请日：2011-01-28

Applicant: Yoshiko Saito ,  Kenichi Miyoshi ,  Daichi Imamura ,  Yasuaki Yuda

Inventor： Yoshiko Saito ,  Kenichi Miyoshi ,  Daichi Imamura ,  Yasuaki Yuda

IPC: H04B7/14

CPC classification number: H04W72/082 ,  H04B7/2606 ,  H04L1/0003 ,  H04L1/0009 ,  H04W84/047

Abstract: When a terminal (200) is capable of connecting to two relay devices that are adjacent to the terminal, from among a plurality of relay devices, a receiving unit (208) receives signals in a first period and a second period for communication among the plurality of relay stations, which are transmitted from the higher order device to the lower order device toward other terminal devices. An interference removal unit (209) obtains a signal transmitted toward the terminal (200) from the higher order relay device by employing the signals toward the other terminal devices that are received in the first period and the second period and removing a signal toward other terminal devices that is transmitted in a third period for communication between the plurality of relay devices and the terminal device from the lower order device from a signal that is received in the third period.

Abstract translation: 当终端（200）能够连接到与终端相邻的两个中继设备时，从多个中继设备中，接收单元（208）在第一周期和第二周期中接收多个中继设备之间的通信信号 的中继站，其从高阶设备向低阶设备发送到其他终端设备。 干扰去除单元（209）通过在第一周期和第二周期中接收到的其他终端设备的信号获得从高阶中继设备向终端（200）发送的信号，并且去除朝向其他终端的信号 在第三时段中从在第三时段接收到的信号中在多个中继设备和来自低级设备的终端设备之间进行通信的设备。

公开(公告)号：US08588321B2

公开(公告)日：2013-11-19

申请号：US12809701

申请日：2008-10-23

Applicant: Masayuki Hoshino ,  Katsuhiko Hiramatsu ,  Kenichi Miyoshi

Inventor： Masayuki Hoshino ,  Katsuhiko Hiramatsu ,  Kenichi Miyoshi

IPC: H04K1/10

CPC classification number: H04B7/0452 ,  H04B7/0417 ,  H04B7/0426 ,  H04B7/0632 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0036 ,  H04W72/08

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08520760B2

公开(公告)日：2013-08-27

申请号：US12988251

申请日：2009-04-17

Applicant: Ryohei Kimura ,  Daichi Imamura ,  Kenichi Miyoshi

Inventor： Ryohei Kimura ,  Daichi Imamura ,  Kenichi Miyoshi

IPC: H04B7/02

CPC classification number: H04L1/0029 ,  H04B7/0621 ,  H04B7/0632 ,  H04B7/0634 ,  H04L1/0026 ,  H04L25/0224

Abstract: Provided are a radio reception device, a radio transmission device, and a feedback method which can uniformly guarantee the feedback accuracy of an average channel quality indicator (CQI) even when the transmission band width is different. A channel estimation unit uses a pilot signal to obtain SINR for each RB. A feedback information generation unit converts SINR of each RB into a corresponding CQI. Moreover, as the transmission band width increases, the number X of the quantization bits is decreased when quantizing the average CQI, thereby generating feedback information. A radio transmission unit transmits feedback information from an antenna.

Abstract translation: 提供即使在传输带宽不同的情况下也能够均匀地保证平均信道质量指示符（CQI）的反馈精度的无线接收装置，无线发送装置和反馈方法。 信道估计单元使用导频信号来获得每个RB的SINR。 反馈信息生成部将各RB的SINR变换为对应的CQI。 此外，随着传输带宽的增加，量化位数的数量X在量化平均CQI时减少，从而产生反馈信息。 无线发送单元从天线发送反馈信息。

公开(公告)号：US08467723B2

公开(公告)日：2013-06-18

申请号：US13585621

申请日：2012-08-14

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

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

IPC: H04Q7/20

CPC classification number: H04W16/26 ,  H04B7/15507 ,  H04W16/24 ,  H04W48/08 ,  H04W84/047

Abstract: 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).

Abstract translation: 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。

公开(公告)号：US08422578B2

公开(公告)日：2013-04-16

申请号：US13282207

申请日：2011-10-26

Applicant: Kenichi Miyoshi ,  Hidetoshi Suzuki ,  Akihiko Nishio ,  Daichi Imamura

Inventor： Kenichi Miyoshi ,  Hidetoshi Suzuki ,  Akihiko Nishio ,  Daichi Imamura

IPC: H04K1/10

CPC classification number: H04L1/0041 ,  H04L1/0067 ,  H04L1/0071 ,  H04L1/04 ,  H04L1/08 ,  H04L5/0007 ,  H04L5/0046 ,  H04L27/2647

Abstract: A base station allowing mobile stations to efficiently remove interference signals. In this base station, an encoding part performs an error correction encoding of transport data to generate a bit sequence comprising systematic bits and parity bits; a repetition part repeats, as a repetition subject, only the parity bits out of the plurality of bits included in the bit sequence, which is generated by the encoding part, so as to perform a rate matching; a modulating part modulates, after the repetition, the bit sequence to generate symbols; an S/P part parallel converts the symbols serially inputted from the modulating part (103) and then outputs them to an IFFT part; and the IFFT part performs an IFFT processing of the symbols inputted from the S/P part and then maps them onto subcarriers in accordance with a predetermined mapping pattern, thereby generating OFDM symbols.

Abstract translation: 基站允许移动台有效地去除干扰信号。 在该基站中，编码部对传输数据进行纠错编码，生成包含系统位和奇偶位的比特序列; 重复部分作为重复对象重复由编码部分生成的比特序列中包含的多个比特中的奇偶校验位，以便执行速率匹配; 调制部分在重复之后调制比特序列以产生符号; S / P部分并行转换从调制部分（103）串行输入的符号，然后将其输出到IFFT部分; 并且IFFT部分对从S / P部分输入的符号执行IFFT处理，然后根据预定的映射模式将它们映射到子载波上，从而生成OFDM符号。

公开(公告)号：US08422484B2

公开(公告)日：2013-04-16

申请号：US12882032

申请日：2010-09-14

Applicant: Takashi Iwai ,  Daichi Imamura ,  Kenichi Miyoshi ,  Sadaki Futagi ,  Atsushi Matsumoto ,  Tomofumi Takata

Inventor： Takashi Iwai ,  Daichi Imamura ,  Kenichi Miyoshi ,  Sadaki Futagi ,  Atsushi Matsumoto ,  Tomofumi Takata

IPC: H04J3/06

CPC classification number: H04J13/0055 ,  H04J13/0062 ,  H04J13/0066

Abstract: Provided are a radio transmission device and a radio transmission method, which prevent the deterioration of a preamble detecting performance while reducing the collision probability of a RACH. In this radio transmission device, a Signature table storage unit (103) divides the magnitudes of transmission loss levels into individual levels corresponding to the distances from a base station, to cause CAZAC series and circulation shift quantities to correspond to each other at the individual levels, and is provided with a table containing a plurality of Signatures created from the CAZAC series and the circulation shift quantities caused to correspond to each other. A Signature selecting unit (104) selects one of the corresponding Signatures at random from the Signature table storage unit (103), on the basis of the magnitude of the transmission loss level outputted from a transmission loss level deciding unit (102). A RACH signal generating unit (105) generates the RACH signal with the Signature selected.

Abstract translation: 提供一种无线传输装置和无线传输方法，其防止前导码检测性能的劣化，同时降低RACH的冲突概率。 在该无线发送装置中，签名表存储部（103）将传输损耗级别的大小划分为与基站的距离对应的各个级别，使得CAZAC序列和循环移位量在各个级别彼此对应 并且设置有包含从CAZAC系列创建的多个签名和导致彼此对应的循环移位量的表。 签名选择单元（104）根据从传输损失等级决定单元（102）输出的传输损耗电平的大小，从签名表存储单元（103）中随机选择一个对应的签名。 RACH信号生成单元（105）在选择了签名的情况下生成RACH信号。

公开(公告)号：US08391411B2

公开(公告)日：2013-03-05

申请号：US11997892

申请日：2006-08-04

Applicant: Kenichi Miyoshi ,  Hidetoshi Suzuki ,  Katsuhiko Hiramatsu ,  Christian Wengerter ,  Alexander Golitschek Edler Von Elbwart

Inventor： Kenichi Miyoshi ,  Hidetoshi Suzuki ,  Katsuhiko Hiramatsu ,  Christian Wengerter ,  Alexander Golitschek Edler Von Elbwart

IPC: H04L27/20

CPC classification number: H04B1/40 ,  H04B15/00 ,  H04L1/0042 ,  H04L5/0046 ,  H04L25/0202 ,  H04L25/0212 ,  H04L25/0224 ,  H04L27/04 ,  H04L27/18 ,  H04L27/183 ,  H04L27/34 ,  H04L27/36 ,  H04L27/38

Abstract: Provided is a wireless communication apparatus wherein channel estimation accuracy is improved while keeping the position of each bit in a frame, even when a modulation system having a large modulation multiple value is used for a data symbol. In the wireless communication apparatus (100), an encoding section (101) encodes and outputs transmitting data (bit string) to a bit converting section (102), and the bit converting section (102) converts at least one bit of a plurality of bits constituting a data symbol to be used for channel estimation, among the encoded bit strings, into ‘1’ or ‘0’ and outputs it to a modulating section (103). The modulating section (103) modulates the bit string inputted from the bit converting section (102) by using a single modulation mapper and a plurality of data symbols are generated.

Abstract translation: 提供了一种无线通信装置，其中即使当具有大的调制多值的调制系统用于数据符号时，信道估计精度也被保持在帧中每个位的位置而得到改善。 在无线通信装置（100）中，编码部（101）对位转换部（102）进行编码并输出发送数据（比特串），比特变换部（102）将多个 在编码比特串中构成要用于信道估计的数据符号的比特成1或0并将其输出到调制部分（103）。 调制部（103）通过使用单个调制映射器来调制从比特变换部（102）输入的比特串，生成多个数据符号。