公开(公告)号：US20080056181A1

公开(公告)日：2008-03-06

申请号：US11575453

申请日：2005-09-15

申请人： Daichi Imamura ,  Kenichi Miyoshi

发明人： Daichi Imamura ,  Kenichi Miyoshi

IPC分类号： H04J1/00

CPC分类号： H04L5/0046 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/006 ,  H04L25/0204

摘要： There is provided a transmission control frame generation device capable of reducing the data amount of feedback information while maintaining a high throughput. In this device, an average quality level calculation unit (182) calculates an average SNR value of a plurality of sub-carriers from a plurality of SNR values corresponding to the plurality of sub-carriers. According to an SNR value corresponding to one of the sub-carriers and the average SNR value, a sub-carrier block configuration unit (185) sets the SNR value of the sub-carrier block containing the sub-carrier. A feedback frame generation unit (187) generates a CSI frame used for controlling transmission in the sub-carrier and indicating the value representing the average SNR value and the value representing the SNR value of the sub-carrier block.

摘要翻译： 提供了一种能够在保持高吞吐量的同时减少反馈信息的数据量的传输控制帧生成装置。 在该装置中，平均质量等级计算单元（182）根据与多个子载波对应的多个SNR值来计算多个子载波的平均SNR值。 根据对应于子载波之一和平均SNR值的SNR值，子载波块配置单元（185）设置包含子载波的子载波块的SNR值。 反馈帧生成部（187）生成用于控制副载波中的发送的CSI帧，并且表示表示平均SNR值的值和表示子载波块的SNR值的值。

公开(公告)号：US08730939B2

公开(公告)日：2014-05-20

申请号：US13258996

申请日：2010-03-25

申请人： Kenichi Miyoshi ,  Yoshiko Saito ,  Daichi Imamura

发明人： Kenichi Miyoshi ,  Yoshiko Saito ,  Daichi Imamura

IPC分类号： H04W56/00

CPC分类号： H04L25/0204 ,  H04J13/10 ,  H04L25/0226 ,  H04L25/0248

摘要： 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.

摘要翻译： 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：US08681686B2

公开(公告)日：2014-03-25

申请号：US13574980

申请日：2011-01-28

申请人： Yoshiko Saito ,  Kenichi Miyoshi ,  Daichi Imamura ,  Yasuaki Yuda

发明人： Yoshiko Saito ,  Kenichi Miyoshi ,  Daichi Imamura ,  Yasuaki Yuda

IPC分类号： H04B7/14

CPC分类号： H04W72/082 ,  H04B7/2606 ,  H04L1/0003 ,  H04L1/0009 ,  H04W84/047

摘要： 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.

摘要翻译： 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：US08520760B2

公开(公告)日：2013-08-27

申请号：US12988251

申请日：2009-04-17

申请人： Ryohei Kimura ,  Daichi Imamura ,  Kenichi Miyoshi

发明人： Ryohei Kimura ,  Daichi Imamura ,  Kenichi Miyoshi

IPC分类号： H04B7/02

CPC分类号： H04L1/0029 ,  H04B7/0621 ,  H04B7/0632 ,  H04B7/0634 ,  H04L1/0026 ,  H04L25/0224

摘要： 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.

摘要翻译： 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：US08422484B2

公开(公告)日：2013-04-16

申请号：US12882032

申请日：2010-09-14

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

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

IPC分类号： H04J3/06

CPC分类号： H04J13/0055 ,  H04J13/0062 ,  H04J13/0066

摘要： 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.

摘要翻译： 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：US08385459B2

公开(公告)日：2013-02-26

申请号：US12665012

申请日：2008-06-17

申请人： Yoshihiko Ogawa ,  Daichi Imamura ,  Kenichi Miyoshi ,  Takashi Iwai ,  Tomofumi Takata

发明人： Yoshihiko Ogawa ,  Daichi Imamura ,  Kenichi Miyoshi ,  Takashi Iwai ,  Tomofumi Takata

IPC分类号： H04L27/00

CPC分类号： H04L25/0258 ,  H04J13/0062 ,  H04J13/10 ,  H04L7/007 ,  H04L7/042 ,  H04W72/042

摘要： Provided is a cyclic shift sequence generation method which can prevent coming of an interference wave into a desired wave detection window even if a cyclic shift sequence has a high mutual correlation in different bandwidths, thereby improving a channel estimation accuracy in a base station. In this method, a cyclic shift sequence number to be allocated to a cell is decided in advance. Moreover, when the cyclic shift amount between cyclic shift sequences allocated in cells is Δ1 and the cyclic shift amount of the cyclic shift sequences allocated between the cells is Δ2, Δ1 and Δ2 are made different when generating a cyclic shift sequence.

摘要翻译： 提供了一种循环移位序列生成方法，即使循环移位序列在不同带宽中具有高相互关系，也能够防止干扰波进入期望的波检测窗口，从而提高基站中的信道估计精度。 在该方法中，预先决定分配给单元的循环移位序列号。 此外，当在单元中分配的循环移位序列之间的循环移位量为＆Dgr1，并且在单元之间分配的循环移位序列的循环移位量为＆Dgr; 2，＆Dgr; 1和＆Dgr; 2在生成 循环移位序列。

公开(公告)号：US20120294229A1

公开(公告)日：2012-11-22

申请号：US13574980

申请日：2011-01-28

申请人： Yoshiko Saito ,  Kenichi Miyoshi ,  Daichi Imamura ,  Yasuaki Yuda

发明人： Yoshiko Saito ,  Kenichi Miyoshi ,  Daichi Imamura ,  Yasuaki Yuda

IPC分类号： H04B7/14

CPC分类号： H04W72/082 ,  H04B7/2606 ,  H04L1/0003 ,  H04L1/0009 ,  H04W84/047

摘要： 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.

摘要翻译： 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：US07852814B2

公开(公告)日：2010-12-14

申请号：US11575453

申请日：2005-09-15

申请人： Daichi Imamura ,  Kenichi Miyoshi

发明人： Daichi Imamura ,  Kenichi Miyoshi

IPC分类号： H04W4/00 ,  H04B7/216 ,  H04W72/00

CPC分类号： H04L5/0046 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/006 ,  H04L25/0204

摘要： There is provided a transmission control frame generation device capable of reducing the data amount of feedback information while maintaining a high throughput. In this device, an average quality level calculation unit (182) calculates an average SNR value of a plurality of sub-carriers from a plurality of SNR values corresponding to the plurality of sub-carriers. According to an SNR value corresponding to one of the sub-carriers and the average SNR value, a sub-carrier block configuration unit (185) sets the SNR value of the sub-carrier block containing the sub-carrier. A feedback frame generation unit (187) generates a CSI frame used for controlling transmission in the sub-carrier and indicating the value representing the average SNR value and the value representing the SNR value of the sub-carrier block.

摘要翻译： 提供了一种能够在保持高吞吐量的同时减少反馈信息的数据量的传输控制帧生成装置。 在该装置中，平均质量等级计算单元（182）根据与多个子载波对应的多个SNR值来计算多个子载波的平均SNR值。 根据对应于子载波之一和平均SNR值的SNR值，子载波块配置单元（185）设置包含子载波的子载波块的SNR值。 反馈帧生成部（187）生成用于控制副载波中的发送的CSI帧，并且表示表示平均SNR值的值和表示子载波块的SNR值的值。

公开(公告)号：US20100279603A1

公开(公告)日：2010-11-04

申请号：US12280792

申请日：2007-02-26

申请人： Ayako Horiuchi ,  Kenichi Miyoshi ,  Daichi Imamura ,  Hiroaki Morino

发明人： Ayako Horiuchi ,  Kenichi Miyoshi ,  Daichi Imamura ,  Hiroaki Morino

IPC分类号： H04B17/02 ,  H04B7/15

CPC分类号： H04B7/2606 ,  H04B7/026 ,  H04B7/155

摘要： A relay transmission method for communication between a base station and a mobile station via a relay station while producing a diversity effect even if the relay station detects an error in the relay signal. A decoding section (104) of the relay station used in this method performs error-correction decoding of a systematic bit by using a parity bit by repetition decoding such as turbo decoding and acquires the results of the decoding composed of the systematic bit having undergone the error-correction decoding. An error judging section (105) judges whether or not any error is present in the decoding results. Coding section (106) performs error-correction coding of the decoding results and acquires the error-correction coded systematic bit and parity bit. A selecting section (107) selects either the decoding results inputted from the decoding section (104) or a bit sequence inputted from the coding section (106) according to the result of the judgment by the error judging section (105) and outputs the selected one to a modulating section (108). A transmission control section (112) controls the operation of a radio transmitting section (109) according to the SNR of the received data symbol and the result of the judgment by the error judging section (105).

摘要翻译： 一种用于在基站和移动站之间通过中继站进行通信同时产生分集效应的中继传输方法，即使中继站检测到中继信号中的错误。 在该方法中使用的中继站的解码部（104）通过使用诸如turbo解码的重复解码，通过使用奇偶校验比特来执行系统比特的纠错解码，并且获取由已经经历的系统比特组成的解码结果 纠错解码。 错误判定部（105）判断解码结果是否存在错误。 编码部（106）对解码结果进行纠错编码，并获取纠错编码的系统比特和奇偶校验位。 选择部（107）根据误差判定部（105）的判断结果，选择从解码部（104）输入的解码结果或从编码部（106）输入的比特序列，并输出所选择的 一个到调制部分（108）。 发送控制部（112）根据接收到的数据符号的SNR和错误判定部（105）的判断结果来控制无线发送部（109）的动作。

公开(公告)号：US20090213813A1

公开(公告)日：2009-08-27

申请号：US12298693

申请日：2007-04-26

申请人： Sadaki Futagi ,  Takashi Iwai ,  Daichi Imamura ,  Kenichi Miyoshi

发明人： Sadaki Futagi ,  Takashi Iwai ,  Daichi Imamura ,  Kenichi Miyoshi

IPC分类号： H04B7/216 ,  H04J3/00

CPC分类号： H04J13/0059 ,  H04L1/1893 ,  H04W72/06 ,  H04W74/0866

摘要： Provided is a mobile station device capable of performing RACH transmission with a small amount of resources. In this device, a RACH generating unit (111) is formed by a signature selection unit (112) and a modulation unit (113). A RACH signal is generated as follows. That is, according to inputted RACH re-transmission quantity information, the signature selection unit (112) selects one code sequence as a signature from a plurality of different code sequences. The modulation unit (113) modulates the signature (code sequence) and generates a RACH signal. A multiplexing unit (116) time-multiplexes the RACH signal inputted from the modulation unit (113) and user data inputted from the modulation unit (115). A radio transmission unit (117) subjects the multiplexed signal to radio processing and transmits it via an antenna (121).

摘要翻译： 提供能够以少量的资源进行RACH传输的移动站装置。 在该装置中，由签名选择部（112）和调制部（113）构成RACH生成部（111）。 如下生成RACH信号。 也就是说，根据输入的RACH重传量信息，签名选择部（112）从多个不同的代码序列中选择一个代码序列作为签名。 调制单元（113）调制签名（代码序列）并产生RACH信号。 复用单元（116）对从调制单元（113）输入的RACH信号和从调制单元（115）输入的用户数据进行时分复用。 无线发送单元（117）对多路复用信号进行无线处理，经由天线（121）发送。