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51. 发明授权

US07912423B2 Wireless communication system 有权
标题翻译：无线通信系统
公开(公告)号：US07912423B2
公开(公告)日：2011-03-22
申请号：US11908486
申请日：2006-03-13
申请人： Tomohiro Imai , Ayako Horiuchi , Akihiko Nishio , Kenichi Kuri , Hiroaki Morino
发明人： Tomohiro Imai , Ayako Horiuchi , Akihiko Nishio , Kenichi Kuri , Hiroaki Morino
IPC分类号： H04B15/00 , H04B7/15
CPC分类号： H04B7/15557 , H04B7/2606 , H04L1/0003 , H04L1/0009 , H04L2001/0092
摘要： A wireless communication system enabling multihop communication while maintaining the system throughput and preventing degradation of the user throughput. In the system, a BS (base station) determines the relaying method (whether an RS performs reproduction relay or nonreproduction relay) of the RS (relaying station) and the MCS of multihop communication according to the reception quality (the line quality among an MS2, the RS, and the BS) of the pilot for nonreproduction relay, the reception quality (the line quality between the RS and the BS) of the pilot 2 for reproduction relay, and the line quality (the line quality between the MS2 and the RS) measured at the RS. The determination result is transmitted as relay information to the RS and to the MS2 (a mobile station (2)) through the RS. The MS2 encodes and modulates the uplink data with the MCS based on the relay information and transmits the data to the RS. The RS relays the uplink data while selecting nonreproduction relay or reproduction relay according to the relay information.
摘要翻译：一种能够实现多跳通信同时维持系统吞吐量并防止用户吞吐量恶化的无线通信系统。在该系统中，BS（基站）根据接收质量（MS2中的线路质量）确定RS（中继站）的RS中继方法（RS是否执行再生中继或不再生中继）用于非再生继电器的导频的RS，和BS），用于再现中继的导频2的接收质量（RS与BS之间的线路质量）和线路质量（MS2与 RS）。确定结果通过RS作为中继信息发送到RS和MS2（移动台（2））。 MS2通过基于中继信息的MCS对上行数据进行编码和调制，并将数据发送给RS。 RS根据中继信息选择非再生继电器或再生继电器时中继上行数据。

52. 发明申请

US20100260284A1 PILOT TRANSMISSION METHOD, MIMO TRANSMISSION DEVICE, AND MIMO RECEPTION DEVICE 审中-公开
标题翻译：导频传输方法，MIMO传输设备和MIMO接收设备
公开(公告)号：US20100260284A1
公开(公告)日：2010-10-14
申请号：US12742894
申请日：2008-12-09
申请人： Isamu Yoshii , Atsushi Sumasu , Tomohiro Imai , Hidenori Kayama
发明人： Isamu Yoshii , Atsushi Sumasu , Tomohiro Imai , Hidenori Kayama
IPC分类号： H04L27/00
CPC分类号： H04B7/0671 , H04L27/2601 , H04L27/2607
摘要： Provided is a MIMO transmission device which can effectively perform a pilot transmission by using a surplus sample generated in a pilot symbol while maintaining the pilot separation accuracy at a reception side. The MIMO transmission device (100) transmits a pilot symbol as follows. That is, in a first pilot transmission symbol section, a transmission section of a pilot signal transmitted from a first transmission antenna is partially overlapped by a pilot transmission section of a second transmission antenna. In a second pilot transmission symbol section, a pilot transmission section of the first transmission antenna is partially overlapped by a pilot transmission section of a third antenna. Among the pilot signals transmitted from the first antenna, the interference portions overlapped by transmission pilot signals from other antennas are different between the first pilot transmission symbol section and the second pilot transmission symbol section.
摘要翻译：提供一种MIMO传输装置，其可以通过在导频符号中生成的剩余采样同时在接收侧保持导频分离精度来有效地执行导频发送。 MIMO发送装置（100）如下发送导频符号。也就是说，在第一导频发送符号部分中，从第一发送天线发送的导频信号的发送部分由第二发送天线的导频发送部分重叠。在第二导频发送符号部分中，第一发送天线的导频发送部分由第三天线的导频发送部分重叠。在从第一天线发送的导频信号中，与来自其他天线的发送导频信号重叠的干扰部分在第一导频传输符号部分和第二导频传输符号部分之间是不同的。

53. 发明申请

US20100254485A1 PILOT TRANSMISSION METHOD, MIMO TRANSMISSION DEVICE, AND MIMO RECEPTION DEVICE 审中-公开
标题翻译：导频传输方法，MIMO传输设备和MIMO接收设备
公开(公告)号：US20100254485A1
公开(公告)日：2010-10-07
申请号：US12746750
申请日：2008-12-12
申请人： Isamu Yoshii , Atsushi Sumasu , Tomohiro Imai , Hidenori Kayama , Hidenori Matsuo , Yoshiko Saito , Seigo Nakao , Shinsuke Takaoka
发明人： Isamu Yoshii , Atsushi Sumasu , Tomohiro Imai , Hidenori Kayama , Hidenori Matsuo , Yoshiko Saito , Seigo Nakao , Shinsuke Takaoka
IPC分类号： H04L27/00
CPC分类号： H04B7/0671 , H04B7/0413 , H04B7/0613 , H04B7/0684 , H04B7/10
摘要： It is possible to provide a novel pilot transmission method which can calculate an accurate channel estimation value, a MIMO transmission device using the pilot transmission method, and a MIMO reception device which communicates with the MIMO transmission device. The MIMO transmission device (100) includes phase adjustment units (130-1, 130-2) which are controlled by a pilot transmission control unit (170) to multiply parallel pilot signals by a phase adjustment coefficient group so as to adjust the pilot signal transmission timing. The pilot transmission control unit (170) differentiates the order of the transmitting antennas in accordance with the pilot transmission timing between an even-number subcarrier group and an odd-number subcarrier group. At a reception side, a path not influenced by the inter-path interference is extracted for each of the combinations of the transmitting antennas and the subcarrier groups. A channel estimation value is calculated according to the extracted path so as to improve the channel estimation accuracy.
摘要翻译：可以提供一种可以计算准确的信道估计值的新型导频传输方法，使用导频传输方法的MIMO传输装置和与MIMO传输装置进行通信的MIMO接收装置。 MIMO传输设备（100）包括由导频传输控制单元（170）控制以将并行导频信号乘以相位调整系数组的相位调整单元（130-1,130-2），以便调整导频信号传输时机。导频传输控制单元根据偶数子载波组和奇数子载波组之间的导频发送定时来区分发送天线的顺序。在接收侧，针对发送天线和子载波组的每个组合提取不受路径间干扰影响的路径。根据提取的路径计算信道估计值，以提高信道估计精度。

54. 发明授权

US07668510B2 Transmitting/receiving apparatus and transmitting/receiving method 有权
标题翻译：发射/接收装置和发射/接收方法
公开(公告)号：US07668510B2
公开(公告)日：2010-02-23
申请号：US10587166
申请日：2005-01-25
申请人： Tomohiro Imai
发明人： Tomohiro Imai
IPC分类号： H04B1/00
CPC分类号： H04B7/0615 , H04B7/0621 , H04B7/0628 , H04B7/063 , H04B7/0634 , H04L25/0202
摘要： A transmitting/receiving apparatus wherein a decision of performing SDM communication accompanied by a directivity control is correctly performed to improve the transmission efficiency. In the apparatus, a channel estimating part (205) performs channel estimation by use of known symbols included in a received signal. A channel variation deciding part (206) determines a correlation value between a channel estimation result of an immediately preceding process and that of a current process to determines the magnitude of a channel variation, and the determines, based on the magnitude of the channel variation, whether to perform SDM communication accompanied by a directivity control of perform SDM communication not accompanied by the directivity control. When a radio receiving part (107) receives a transmitting weight, a switching part (108) outputs the received transmitting weight to multipliers (103-1 to 103-n). When the receiving part (107) receives a signal an instruction of performing SDM communication not accompanied by the directivity control, the switching part (108) outputs, as the transmitting weight, “1” indicative of performing no directivity control, to the multipliers (103-1 to 103-n).
摘要翻译：一种发送/接收装置，其中正确执行伴随指向性控制的执行SDM通信的决定以提高传输效率。在装置中，信道估计部（205）通过使用包含在接收信号中的已知符号进行信道估计。信道变更决定部（206）确定紧接在前的处理的信道估计结果与当前处理的信道估计结果之间的相关值，以确定信道变化的大小，并且基于信道变化的大小，是否执行SDM通信，伴随执行SDM通信的方向性控制，不伴随方向性控制。当无线电接收部分（107）接收发射权重时，切换部分（108）将接收的发射权重输出到乘法器（103-1至103-n）。当接收部分（107）接收到不伴随方向性控制的执行SDM通信的指令时，切换部分（108）将表示不执行方向性控制的“1”作为发送权重输出到乘法器 103-1〜103-n）。

55. 发明申请

US20090092118A1 INTERLEAVE APPARATUS AND INTERLEAVE METHOD 有权
标题翻译： INTERLEAVE APPARATUS和INTERLEAVE方法
公开(公告)号：US20090092118A1
公开(公告)日：2009-04-09
申请号：US11722144
申请日：2005-12-08
申请人： Katsuyoshi Naka , Daichi Imamura , Tomohiro Imai , Junya Yamazaki
发明人： Katsuyoshi Naka , Daichi Imamura , Tomohiro Imai , Junya Yamazaki
IPC分类号： H04J1/00
CPC分类号： H04L5/006 , H04L1/0071 , H04L1/08 , H04L1/18 , H04L1/1812 , H04L1/1893 , H04L5/0007 , H04L5/0046
摘要： An interleave apparatus and an interleave method for preventing an increase in the number of retransmissions to improve the throughput. In a wireless communication apparatus having the interleave apparatus, a data holding part (1021) two-dimensionally arranges and holds bit sequences. A first index calculating part (1022) sequentially calculates first indexes to be used for reading, in a column direction, the bit sequences arranged in a row direction. A second index calculating part (1023) sequentially calculates second indexes to be used for reversing the order of the upper-order and lower-order bits to be read from the even-numbered columns when the bit sequences are read in accordance with the first indexes. A third index calculating part (1024) sequentially calculates third indexes to be used for reading the bit sequences from a different start position in accordance with the number of retransmissions. A reading part (1025) reads the bit sequences in the order that is in accordance with the third indexes. A mapping part (103) maps the read bit sequences to the respectively corresponding subcarriers.
摘要翻译：一种交织装置和交织方法，用于防止重传次数的增加以提高吞吐量。在具有交织装置的无线通信装置中，数据保持部（1021）二维排列并保持比特序列。第一索引计算部（1022）依次计算用于沿列方向读取沿行方向排列的位序列的第一索引。第二索引计算部分（1023）根据第一索引顺序地计算用于反转从偶数列读取的高阶和低位比特的顺序的第二索引。第三索引计算部分（1024）根据重发次数顺序地计算用于从不同起始位置读取比特序列的第三索引。读取部分（1025）按照与第三索引相符的顺序读取比特序列。映射部分（103）将读取的比特序列映射到分别对应的子载波。

56. 发明申请

US20070286310A1 Wireless Communication Apparatus And Wireless Communication Method 有权
标题翻译：无线通信装置和无线通信方法
公开(公告)号：US20070286310A1
公开(公告)日：2007-12-13
申请号：US11722831
申请日：2005-12-26
申请人： Masaru Fukuoka , Sadaki Futagi , Daichi Imamura , Tomohiro Imai
发明人： Masaru Fukuoka , Sadaki Futagi , Daichi Imamura , Tomohiro Imai
IPC分类号： H03D1/00
CPC分类号： H04B7/02 , H04L1/0071 , H04L1/04 , H04L1/08 , H04L5/0007 , H04L5/0044 , H04L5/0048 , H04L5/0058 , H04L25/0204 , H04L25/0232
摘要： A wireless communication method of repetition system and the like for ensuring that when the same data symbols are combined, a diversity gain is achieved. In a step (ST 420), a data symbol placing part (105) decides destination places of respective replicated data symbols (S1-S4) such that the same data symbols are not placed at destination place numbers (7,8) of data symbols that exhibit poor channel estimation precisions. In a step (ST 430), the data symbol placing part (105) places, in accordance with the decision in the foregoing step (ST 420), the four data symbols (S1-S4), which are received from a repetition part (102), in one frame received from a channel estimation error predicting part (104).
摘要翻译：一种用于确保当相同的数据符号被组合时的重复系统等的无线通信方法，实现了分集增益。在步骤（ST 420）中，数据符号放置部分（105）确定各个复制数据符号（S SUB-S-4）的目的地位置，使得相同的数据符号不会放置在显示较差信道估计精度的数据符号的目的地地点号码（7,8）上。在步骤（ST430）中，数据符号放置部（105）根据上述步骤（ST420）中的判定，设置四个数据符号（S 1 -S

57. 发明申请

US20070005346A1 Mobile terminal device 审中-公开
标题翻译：移动终端设备
公开(公告)号：US20070005346A1
公开(公告)日：2007-01-04
申请号：US10578925
申请日：2004-10-25
申请人： Shinji Ueda , Hiroyuki Motozuka , Tomohiro Imai
发明人： Shinji Ueda , Hiroyuki Motozuka , Tomohiro Imai
IPC分类号： G10L11/00 , G09G5/00
CPC分类号： G06F3/0237 , H04M2250/70
摘要： A mobile terminal apparatus that considers intervals between key input operations when characters are input, and, when there is an interval grater than a certain period of time between operations, or when a shift is made to different character input, reads aloud the voice corresponding to the stored input character and reads aloud only the character the user needs to check. In this apparatus, when other characters are continuously input by the same key input within a predetermined time, character selection fixing section 201 updates the stored content in present candidate storage section 202, outputs the updated candidate character to display control section 204 as a displaying character and displays the updated candidate character on liquid crystal display section 103. At this time, the voice corresponding to the displaying candidate character is not reproduced. When the predetermined time passes without key input, character selection fixing section 201 reads aloud the present candidate character stored in present candidate storage section 202, outputs the present candidate character to reading determination section 206 as a fixed character, and voice reproduction section 105 reproduces the voice corresponding to the fixed character.
摘要翻译：一种移动终端装置，其考虑输入字符时的键输入操作之间的间隔，并且当存在比操作之间的一定时间段更长的间隔时，或者当对不同的字符输入进行移位时，朗读对应于存储的输入字符，并且只朗读用户需要检查的字符。在该装置中，当在预定时间内通过相同的键输入连续地输入其他字符时，字符选择确定部分201更新当前候选存储部分202中存储的内容，将更新的候选字符输出到显示控制部分204作为显示字符并且在液晶显示部103上显示更新的候选字符。此时，不再现与显示候补字符对应的声音。当没有键输入的预定时间过去时，字符选择确定部分201朗读当前候选存储部分202中存储的当前候选字符，将当前候选字符作为固定字符输出到读取确定部分206，并且语音再现部分105再现对应固定字符的声音。

58. 发明授权

US09226301B2 System and method to shorten the time taken to improve inter-cell interference mitigation performance using adaptive fractional frequency reuse 有权
$System and method to shorten the time taken to improve inter-cell interference mitigation performance using adaptive fractional frequency reuse$
标题翻译：使用自适应分数频率重用来缩短提高小区间干扰减轻性能所花费的时间的系统和方法
公开(公告)号：US09226301B2
公开(公告)日：2015-12-29
申请号：US12678099
申请日：2008-09-25
申请人： Isamu Yoshii , Atsushi Sumasu , Tomohiro Imai , Naoya Yosoku , Hidenori Kayama
发明人： Isamu Yoshii , Atsushi Sumasu , Tomohiro Imai , Naoya Yosoku , Hidenori Kayama
IPC分类号： H04W72/08 , H04W72/04 , H04W52/24 , H04L5/00
CPC分类号： H04W72/082 , H04L5/0032 , H04W52/243 , H04W72/0413
摘要： A wireless base station apparatus includes an interference report receiver configured to receive interference reports transmitted on a shared radio resource from a plurality of wireless terminals that are present in a plurality of adjacent cells that are adjacent to a target cell, the shared radio resource being comprised of a plurality of carriers and being shared between the plurality of adjacent cells, and an adaptive fractional frequency reuse controller configured to control adaptive fractional frequency reuse processing in a downlink of the target cell, based on the received interference reports showing a downlink reception quality, wherein the interference reports are transmitted using selected carriers from the plurality of carriers by the plurality of wireless terminals, based on the downlink reception quality.
摘要翻译：无线基站装置包括：干扰报告接收器，被配置为从存在于与目标小区相邻的多个相邻小区中的多个无线终端接收在共享无线资源上发送的干扰报告，所述共享无线资源包括并且在多个相邻小区之间共享，以及自适应分数频率重用控制器，被配置为基于接收到的示出下行链路接收质量的干扰报告来控制目标小区的下行链路中的自适应分数频率重用处理，其中，所述干扰报告基于所述下行链路接收质量，由所述多个无线终端从所述多个载波中使用所选择的载波来发送。

59. 发明授权

US08902764B2 Base station device, terminal device, and closed loop control method 有权
标题翻译：基站装置，终端装置和闭环控制方法
公开(公告)号：US08902764B2
公开(公告)日：2014-12-02
申请号：US12521514
申请日：2007-12-27
申请人： Tomohiro Imai , Shozo Okasaka , Katsuhiko Hiramatsu
发明人： Tomohiro Imai , Shozo Okasaka , Katsuhiko Hiramatsu
IPC分类号： H04L5/00 , H04B7/26 , H04L1/00 , H04L25/02
CPC分类号： H04L5/0053 , H04B7/2615 , H04L1/0015 , H04L1/0029 , H04L5/0051 , H04L25/023
摘要： Provided is a base station device capable of reducing a DL-CSI feedback amount in a TDD type radio communication system in which a DL bandwidth is different from a UL bandwidth. In this device, a demultiplexing unit (133) separates an UL pilot, a DL-CQI, and a DL-CSI fed back from a plurality of UEs as communication partners; a channel estimation unit (134) performs channel sounding by using a UL pilot from a UE in which a DL channel and a UL channel are allocated by overlapping a part of the bandwidth so as to obtain UL-CSI; a control DL-CSI acquisition unit (135) performs interpolation of DL-CSI by using the DL-CSI of some RB contained in the bandwidth where the DL channel and the UL channel fed back from the UE are not overlapped; and a DL close loop control unit (104) combines the estimated UL-CSI and the interpolated DL-CSI so as to use them as DL-CSI for controlling the DL close loop.
摘要翻译：提供一种能够减少DL带宽与UL带宽不同的TDD型无线通信系统中的DL-CSI反馈量的基站装置。在该设备中，解复用单元（133）将从多个UE反馈的UL导频，DL-CQI和DL-CSI分离为通信伙伴; 信道估计单元（134）通过使用来自通过重叠一部分带宽来分配DL信道和UL信道的UE的UL导频来执行信道探测，以获得UL-CSI; 控制DL-CSI获取单元（135）通过使用包含在从UE反馈的DL信道和UL信道不重叠的带宽中的一些RB的DL-CSI来执行DL-CSI的内插; 并且DL闭环控制单元（104）将估计的UL-CSI和内插DL-CSI组合，以便将它们用作用于控制DL闭环的DL-CSI。

60. 发明授权

US08391245B2 Terminal device, base station device, and frequency resource allocation method 有权
标题翻译：终端设备，基站设备和频率资源分配方法
公开(公告)号：US08391245B2
公开(公告)日：2013-03-05
申请号：US12672253
申请日：2008-08-08
申请人： Takaaki Kishigami , Atsushi Sumasu , Isamu Yoshii , Tomohiro Imai
发明人： Takaaki Kishigami , Atsushi Sumasu , Isamu Yoshii , Tomohiro Imai
IPC分类号： H04W4/00
CPC分类号： H04W16/12 , H04B17/382 , H04J11/005 , H04L5/0005 , H04L5/0037 , H04L5/006 , H04L5/0062 , H04L5/0094 , H04W72/082
摘要： It is possible to realize reduction of inter-cell interference by an adaptive FFR with a low delay. A terminal (200) includes: an interference condition detection unit (209) which detects an interference condition of other cell to the local cell; a cell identification unit (210) which acquires signals for cell identification of each base station; and a sub-band selection unit (211) which selects a sub-band used for the downstream line transmission to the local station according to the interference condition detected by the interference condition detection unit (209) and the signals for cell identification of each base station obtained by the cell identification unit (210). Thus, the terminal (200) can autonomously select a small sub-band of inter-cell interference and to realize reduction of the inter-cell interference by the adaptive FFR with a low delay.
摘要翻译：可以通过具有低延迟的自适应FFR来实现小区间干扰的降低。终端（200）包括：干扰状况检测单元（209），其检测其他小区对本地小区的干扰状况; 小区识别单元，其获取每个基站的小区识别信号; 以及根据由干扰条件检测单元（209）检测到的干扰条件和每个基站的小区识别信号，选择用于到本地站的下行线路传输的子带的子带选择单元（211）由小区识别单元（210）获得的站。因此，终端（200）可以自主地选择小区间小区间干扰，并以低延迟实现自适应FFR的小区间干扰减少。

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