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公开(公告)号：US07532864B2
公开(公告)日：2009-05-12
申请号：US10524213
申请日：2004-02-16
IPC分类号： H04B17/00
CPC分类号： H04B1/7097 , H04B17/345 , H04B2201/70701 , H04L1/20
摘要： A pilot extract section 14 extracts a pilot signal from received signal. An adder 21 in-phase adds a plurality of correlated values of pilot signals for respective subcarriers. Delay devices 201-1 to 201-6 temporarily maintain one in-phase added value. Multiplier 202-1 to 202-6 multiplies a predetermined coefficient to the in-phase added value that is output from the delay device. The predetermined coefficient reflects the result, which is obtained by correcting for multiple times the difference of channel variation in the different subcarriers that is generated when noise power per one subcarrier is calculated. Each of the multiplying results is added by an adder 24, and is squared by a square device 25. A cumulative adder 26 cumulative-adds the squared values for the whole subcarrier. A multiplier 203 averages by multiplying predetermined values to the cumulative-added values. Having such configuration, even if the correlation between adjacent subcarriers becomes lower by frequency selective fading, the accuracy for estimating noise power can be improved.
摘要翻译： 导频提取部分14从接收信号中提取导频信号。 同相的加法器21对各个副载波添加导频信号的多个相关值。 延迟装置201-1至201-6暂时保持一个同相的附加值。 乘法器202-1至202-6将预定系数与从延迟装置输出的同相相加值相乘。 预定系数反映通过多次计算在每个子载波的噪声功率被计算时产生的不同子载波中的信道变化的差异而获得的结果。 乘法结果中的每一个由加法器24相加，并由平方装置25平方。累积加法器26对整个子载波进行累加 - 相加。 乘法器203通过将预定值乘以累积附加值来平均。 具有这样的配置，即使相邻副载波之间的相关性通过频率选择性衰落变得较低，也可以提高估计噪声功率的精度。
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公开(公告)号：US20060154608A1
公开(公告)日：2006-07-13
申请号：US10524213
申请日：2004-02-16
IPC分类号： H04B17/00
CPC分类号： H04B1/7097 , H04B17/345 , H04B2201/70701 , H04L1/20
摘要： A pilot extract section 14 extracts a pilot signal from received signal. An adder 21 in-phase adds a plurality of correlated values of pilot signals for respective subcarriers. Delay devices 201-1 to 201-6 temporarily maintain one in-phase added value. Multiplier 202-1 to 202-6 multiplies a predetermined coefficient to the in-phase added value that is output from the delay device. The predetermined coefficient reflects the result, which is obtained by correcting for multiple times the difference of channel variation in the different subcarriers that is generated when noise power per one subcarrier is calculated. Each of the multiplying results is added by an adder 24, and is squared by a square device 25. A cumulative adder 26 cumulative-adds the squared values for the whole subcarrier. A multiplier 203 averages by multiplying predetermined values to the cumulative-added values. Having such configuration, even if the correlation between adjacent subcarriers becomes lower by frequency selective fading, the accuracy for estimating noise power can be improved.
摘要翻译： 导频提取部分14从接收信号中提取导频信号。 同相的加法器21对各个副载波添加导频信号的多个相关值。 延迟装置201-1至201-6暂时保持一个同相的附加值。 乘法器202-1至202-6将预定系数与从延迟装置输出的同相相加值相乘。 预定系数反映通过多次计算在每个子载波的噪声功率被计算时产生的不同子载波中的信道变化的差异而获得的结果。 乘法结果中的每一个由加法器24相加，并由平方装置25平方。 累积加法器26对整个子载波进行累加 - 相加。 乘法器203通过将预定值乘以累积附加值来平均。 具有这样的配置，即使相邻副载波之间的相关性通过频率选择性衰落变得较低，也可以提高估计噪声功率的精度。
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3.发明授权公开(公告)号：US09462560B2
公开(公告)日：2016-10-04
申请号：US13575433
申请日：2011-02-09
申请人： Takashi Iwai , Akihiko Nishio , Seigo Nakao , Masayuki Hoshino , Atsushi Sumasu , Masaru Fukuoka
发明人： Takashi Iwai , Akihiko Nishio , Seigo Nakao , Masayuki Hoshino , Atsushi Sumasu , Masaru Fukuoka
CPC分类号： H04W52/325 , H04B1/713 , H04J13/0062 , H04L5/0048 , H04L25/0204 , H04L25/0224
摘要： Disclosed are a wireless communication method, a wireless communication base station device, and a wireless communication terminal device that dynamically switch the transmission slot of an SRS of each terminal within a cell while suppressing an increase in the number of signaling bits. A terminal (100) and a base station (200) are each provided with a table wherein FH flags for SRS and transmission power data of each slot are mapped to two-bit notification bits. In this table, transmission power data indicating SRS transmission by slot 1 and slot 2 and FH flags are mapped, and an FH flag is not mapped to transmission power data indicating SRS transmission by slot 1 or slot 2. The base station (200) notifies the terminal (100) of the FH flag data and the SRS transmission power data by means of transmitting scheduling data containing the notification bits to the terminal (100).
摘要翻译： 公开了一种无线通信方法，无线通信基站装置和无线通信终端装置，其在抑制信令比特数的增加的同时动态地切换小区内的各终端的SRS的发送时隙。 终端（100）和基站（200）各自设置有表格，其中用于SRS的FH标志和每个时隙的发送功率数据被映射到两位通知位。 在该表中，映射表示由时隙1和时隙2以及FH标志的SRS发送的发送功率数据，并且FH标志未映射到指示由时隙1或时隙2表示SRS发送的发送功率数据。基站（200）通知 通过向终端（100）发送包含通知位的调度数据，FH标志数据的终端（100）和SRS发送功率数据。
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公开(公告)号：US20110167312A1
公开(公告)日：2011-07-07
申请号：US13063163
申请日：2009-09-28
申请人： Yoshihiko Ogawa , Seigo Nakao , Katsuhiko Hiramatsu , Daichi Imamura , Masayuki Hoshino , Atsushi Sumasu , Ayako Horiuchi , Sadaki Futagi , Masaru Fukuoka , Takashi Iwai
发明人： Yoshihiko Ogawa , Seigo Nakao , Katsuhiko Hiramatsu , Daichi Imamura , Masayuki Hoshino , Atsushi Sumasu , Ayako Horiuchi , Sadaki Futagi , Masaru Fukuoka , Takashi Iwai
IPC分类号： G06F11/14
CPC分类号： H04L1/1887 , H04L1/1893 , H04W74/085
摘要： Provided are a radio transmission device and a radio transmission method which can reduce the transmission packet collision generation ratio even when no resource allocation signal is detected in retransmission. When control information outputted from a decoding unit (204) contains NACK and retransmission Grant, a retransmission resource check unit (205) determines that the resource indicated by the retransmission Grant is the retransmission resource. Moreover, when no retransmission Grant is detected and the initial transmission is a wideband transmission, the retransmission resource check unit (205) determines that no retransmission resource exists and instructs an RB allocation unit (209) to stop retransmission. Moreover, when no retransmission Grant is detected and the initial transmission is a narrow band transmission, a predetermined resource is determined to be the retransmission resource.
摘要翻译： 提供即使在重发中没有检测到资源分配信号的情况下也能够降低发送分组冲突发生率的无线发送装置和无线发送方法。 当从解码单元（204）输出的控制信息包含NACK和重发授权时，重发资源检查单元（205）确定由重发授权指示的资源是重传资源。 此外，当没有检测到重传授权并且初始传输是宽带传输时，重发资源检查单元（205）确定不存在重传资源，并且指示RB分配单元（209）停止重传。 此外，当没有检测到重传授权并且初始发送是窄带传输时，将预定资源确定为重传资源。
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5.发明申请公开(公告)号：US20120300740A1
公开(公告)日：2012-11-29
申请号：US13575433
申请日：2011-02-09
申请人： Takashi Iwai , Akihiko Nishio , Seigo Nakao , Masayuki Hoshino , Atsushi Sumasu , Masaru Fukuoka
发明人： Takashi Iwai , Akihiko Nishio , Seigo Nakao , Masayuki Hoshino , Atsushi Sumasu , Masaru Fukuoka
CPC分类号： H04W52/325 , H04B1/713 , H04J13/0062 , H04L5/0048 , H04L25/0204 , H04L25/0224
摘要： Disclosed are a wireless communication method, a wireless communication base station device, and a wireless communication terminal device that dynamically switch the transmission slot of an SRS of each terminal within a cell while suppressing an increase in the number of signaling bits. A terminal (100) and a base station (200) are each provided with a table wherein FH flags for SRS and transmission power data of each slot are mapped to two-bit notification bits. In this table, transmission power data indicating SRS transmission by slot 1 and slot 2 and FH flags are mapped, and an FH flag is not mapped to transmission power data indicating SRS transmission by slot 1 or slot 2. The base station (200) notifies the terminal (100) of the FH flag data and the SRS transmission power data by means of transmitting scheduling data containing the notification bits to the terminal (100).
摘要翻译： 公开了一种无线通信方法，无线通信基站装置和无线通信终端装置，其在抑制信令比特数的增加的同时动态地切换小区内的各终端的SRS的发送时隙。 终端（100）和基站（200）各自设置有表格，其中用于SRS的FH标志和每个时隙的发送功率数据被映射到两位通知位。 在该表中，映射表示由时隙1和时隙2以及FH标志的SRS发送的发送功率数据，并且FH标志未映射到指示由时隙1或时隙2表示SRS发送的发送功率数据。基站（200）通知 通过向终端（100）发送包含通知位的调度数据，FH标志数据的终端（100）和SRS发送功率数据。
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6.发明申请公开(公告)号：US20120320854A1
公开(公告)日：2012-12-20
申请号：US13575466
申请日：2011-01-28
申请人： Atsushi Sumasu , Akihiko Nishio , Ayako Horiuchi , Masayuki Hoshino , Yoshihiko Ogawa , Takashi Iwai , Shinsuke Takaoka , Daichi Imamura , Seigo Nakao
发明人： Atsushi Sumasu , Akihiko Nishio , Ayako Horiuchi , Masayuki Hoshino , Yoshihiko Ogawa , Takashi Iwai , Shinsuke Takaoka , Daichi Imamura , Seigo Nakao
IPC分类号： H04W72/04
CPC分类号： H04J11/0056 , H04L5/001 , H04L5/0053 , H04L5/0073 , H04L27/2626 , H04W84/045
摘要： A control information transmission apparatus which can reduce the interference power of the control signal of the terminal connected to the femtocell is provided. The control information transmission apparatus comprises an arrangement unit that arranges some or all of control signals for a terminal in an extension part among resources including a compatible part and the extension part; and a transmission unit that transmits some or all of the arranged control signals for the terminal.
摘要翻译： 提供了能够降低与毫微微蜂窝基站连接的终端的控制信号的干扰功率的控制信息发送装置。 所述控制信息传输装置包括：布置单元，其在包括兼容部分和所述扩展部分的资源之间的扩展部分中布置终端的一些或全部控制信号; 以及发送部，其发送用于终端的部分或全部配置的控制信号。
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7.发明授权公开(公告)号：US08279953B2
公开(公告)日：2012-10-02
申请号：US11813722
申请日：2005-12-27
申请人： Mitsuru Uesugi , Eiji Ota , Atsushi Sumasu , Keisuke Ebiko
发明人： Mitsuru Uesugi , Eiji Ota , Atsushi Sumasu , Keisuke Ebiko
CPC分类号： H04L25/022 , H04L5/0007 , H04L5/0048 , H04L25/0232 , H04L25/03159 , H04L25/03891 , H04L2025/03414 , H04L2025/03522
摘要： A transmitting apparatus, a receiving apparatus and a wireless communication method for suppressing interference between codes, while further reducing the ratio of redundant components occupying a signal to improve the transmission efficiency. The transmitting apparatus (100) transmits a signal having a frame structure in which a plurality of symbols follow a pilot symbol to which a guard interval has been added. In the receiving apparatus (200) that receives that signal, a long FFT target section acquiring part (202) acquires, from the received OFDM signal, a long FFT target section that is a target section in which delay waves are to be removed by use of a pilot symbol. A long FFT part (203) performs a fast Fourier transformation of the long FFT target section to convert it to a frequency domain signal. A frequency equalizing part (204) performs a frequency equalization of the long FFT target section by use of an interpolation result of communication line estimation value. A long IFFT part (205) performs an inverse fast Fourier transformation of the long FFT target section as frequency equalized to convert it back to a time domain signal.
摘要翻译： 一种用于抑制代码之间的干扰的发送装置，接收装置和无线通信方法，同时进一步减少占用信号的冗余部件的比率以提高传输效率。 发送装置（100）发送具有帧结构的信号，其中多个符号遵循已经添加有保护间隔的导频符号。 在接收到该信号的接收装置（200）中，长FFT对象部分获取部（202）从接收到的OFDM信号中获取作为要使用的移除延迟波的目标部分的长FFT对象部 的飞行员符号。 长FFT部（203）对长FFT对象部进行快速傅里叶变换，将其变换为频域信号。 频率均衡部分（204）通过使用通信线路估计值的内插结果来执行长FFT对象部分的频率均衡。 长IFFT部分（205）执行长FFT目标部分的快速傅立叶逆变换作为均衡的频率，以将其转换回到时域信号。
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8.发明授权公开(公告)号：US08155227B2
公开(公告)日：2012-04-10
申请号：US13160872
申请日：2011-06-15
IPC分类号： H04K1/10
CPC分类号： H04L1/0026 , H04L1/0003 , H04L1/0009 , H04L1/0029 , H04L1/003 , H04L5/0007 , H04L5/0046 , H04L5/006 , H04L5/0091 , H04L25/022
摘要： A mobile terminal device for performing multi-carrier communication with a base station device can improve communication quality while reducing the data amount without lowering accuracy of feedback information. In the mobile station device (100), a reception level measuring unit (135) measuring SINR as a reception level for each chunk formed by a plurality of sub-carriers according to a known signal; a control information transmission control unit (160) transmits feedback information (CQI information) based on the communication quality of each chunk to a base station device (200); a relative value calculation unit (150) calculates a relative value of MCS corresponding to the reception level between adjacent chunks from the reception level of each chunk; and a CQI information generation unit (155) generates feedback information (CQI information) from an absolute value of MCS corresponding to the reception level of the reference chunk and a relative value of MCS corresponding to the reception level between the adjacent chunks.
摘要翻译： 用于与基站设备进行多载波通信的移动终端设备可以在降低数据量的同时提高通信质量，而不降低反馈信息的准确性。 在所述移动台装置（100）中，根据已知信号，将由SINR构成的每个块的接收电平测量SINR的接收电平测量单元（135） 控制信息发送控制部（160）将基于各块的通信质量的反馈信息（CQI信息）发送到基站装置（200）; 相对值计算单元从每个块的接收电平计算与相邻块之间的接收电平相对应的MCS的相对值; CQI信息生成部（155）根据与基准块的接收电平对应的MCS的绝对值和与相邻的块之间的接收电平相对应的MCS的相对值生成反馈信息（CQI信息）。
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公开(公告)号：US07843887B2
公开(公告)日：2010-11-30
申请号：US11718371
申请日：2005-11-01
CPC分类号： H04W72/02 , H04L25/0206 , H04L25/0248 , H04W36/28 , H04W72/085
摘要： It is possible to surely improve the throughput in a handover area in the MIMO communication and increase the cell coverage. Channel estimation units (104-1, 104-2) perform a channel estimation by using a common pilot signal transmitted from each base station device and acquire a channel matrix for each cell. Singular value decomposition processing units (105-1, 105-2) perform singular value decomposition processing by using a channel matrix corresponding to each cell. Channel capacity calculation units (106-1, 106-2) compare a singular value for each path to a threshold value and calculate the number of singular values above a predetermined threshold value as the channel capacity. A cell selection unit (107) compares the channel capacity sizes and selects a base station device corresponding to a greater channel capacity.
摘要翻译： 可以确保提高MIMO通信中的切换区域的吞吐量并增加小区覆盖。 信道估计单元（104-1,104-2）通过使用从每个基站装置发送的公共导频信号进行信道估计，并获取每个小区的信道矩阵。 奇异值分解处理单元（105-1,105-2）通过使用与每个单元相对应的信道矩阵来执行奇异值分解处理。 信道容量计算单元（106-1,106-2）将每个路径的奇异值与阈值进行比较，并计算高于预定阈值的奇异值的数量作为信道容量。 小区选择单元（107）比较信道容量大小，并选择对应于较大信道容量的基站设备。
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10.发明申请PILOT TRANSMISSION METHOD, MIMO TRANSMISSION DEVICE, AND MIMO RECEPTION DEVICE 审中-公开导频传输方法，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。
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