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1. 发明授权

US07995663B2 Multicarrier transmitting apparatus and multicarrier transmitting method 失效
标题翻译：多载波发射装置和多载波发射方法
公开(公告)号：US07995663B2
公开(公告)日：2011-08-09
申请号：US11917745
申请日：2006-06-21
申请人： Yuta Seki , Mitsuru Uesugi , Eiji Ota
发明人： Yuta Seki , Mitsuru Uesugi , Eiji Ota
IPC分类号： H04L27/28
CPC分类号： H04L27/2623
摘要： To narrow the dynamic range of multicarrier signals and prevent both the increment of cost and the degradation of power efficiency. A modulating part (101) modulates transport data. An S/P converting part (102) performs an S/P conversion of a modulated symbol and outputs the modulated symbols, the number of which is the same as the number of all subcarriers, to an IFFT part (103) in parallel. The IFFT part (103) assigns the modulated symbols to the subcarriers, the frequencies of which are orthogonal to each other, to perform an inverse fast Fourier transform. A P/S converting part (104) performs a P/S conversion of the signals of time domain. When the instantaneous amplitude level of an OFDM signal is lower than a predetermined threshold value, a pit clip part (105) replaces this amplitude level by the predetermined threshold value. In other words, when the instantaneous power of the OFDM signal is close to zero, the pit clip part (105) converts a power value to a value that is greater than the actual power value.
摘要翻译：缩小多载波信号的动态范围，防止成本增加和功率效率的退化。调制部（101）调制传输数据。 S / P转换部分（102）执行调制符号的S / P转换，并且将其数量与所有子载波数相同的调制符号并行地输出到IFFT部分（103）。 IFFT部分（103）将调制符号分配给彼此正交的频率的子载波，以执行快速傅立叶逆变换。 P / S转换部（104）进行时域信号的P / S转换。当OFDM信号的瞬时幅度电平低于预定阈值时，凹坑夹部分（105）将该幅度电平取代预定阈值。换句话说，当OFDM信号的瞬时功率接近零时，凹坑夹部分（105）将功率值转换成大于实际功率值的值。

2. 发明申请

US20110128882A1 RADIO TRANSMITTER AND RADIO RECEIVER 审中-公开
标题翻译：无线电发射机和无线接收机
公开(公告)号：US20110128882A1
公开(公告)日：2011-06-02
申请号：US13055446
申请日：2009-08-27
申请人： Noriyuki Shimizu , Yuta Seki
发明人： Noriyuki Shimizu , Yuta Seki
IPC分类号： H04L12/26
CPC分类号： H04J11/0069 , H04L1/0045 , H04L1/0061 , H04L1/0072 , H04L5/0053
摘要： A radio transmitter and a radio receiver which reduce the number of blind determinations of control signals while maintaining resource utilization efficiency. A radio transmitter (100) includes a hash value calculating section (131) for calculating a hash value from a bit sequence indicating the device ID of each device or a transmission destination, and arranges a plurality of control channel signals in the order in which the calculated hash value of the each device increases or decreases monotonously in a frequency region which is the mapping resource range of the control channel signals. A radio receiver (200) acquires the order in which the control channel signals arranged according to the hash value are arranged. Even when the terminal ID included in the control channel signal decoded first is not the terminal ID of the radio receiver (200), the radio receiver (200) predicts the range in which the control channel signal including the terminal ID of the radio receiver (200) exists in the order by comparing the hash values obtained from both the terminal IDs with each other.
摘要翻译：一种无线电发射机和无线电接收机，其在保持资源利用效率的同时减少控制信号的盲确定次数。无线发射机（100）包括：哈希值计算部（131），用于根据表示各设备的设备ID或发送目的地的比特序列来计算哈希值，并按照以下顺序排列多个控制信道信号：每个设备的计算散列值在作为控制信道信号的映射资源范围的频率区域中单调增加或减小。无线电接收机（200）获取根据哈希值排列的控制信道信号的顺序。即使当包括在首先解码的控制信道信号中的终端ID不是无线电接收机（200）的终端ID时，无线电接收机（200）预测包括无线电接收机的终端ID的控制信道信号的范围 200）通过比较从两个终端ID获得的哈希值彼此之间的顺序存在。

3. 发明申请

US20110019697A1 SC-FDMA TRANSMISSION DEVICE AND SC-FDMA TRANSMISSION SIGNAL FORMATION METHOD 失效
标题翻译： SC-FDMA传输设备和SC-FDMA传输信号形成方法
公开(公告)号：US20110019697A1
公开(公告)日：2011-01-27
申请号：US12934129
申请日：2009-02-06
申请人： Yuta Seki , Richol Ku
发明人： Yuta Seki , Richol Ku
IPC分类号： H04J1/00
CPC分类号： H04L25/03343 , H04L5/0007 , H04L5/003
摘要： It is possible to provide an SC-FDMA transmission device and an SC-FDMA transmission signal formation method which improve the transmission efficiency of the SC-FDMA transmission signal. The SC-FDMA transmission device (100) performs the discrete Fourier transform process on a primary modulation signal sequence formed by N primary modulation symbols to obtain a plurality of frequency components, which are respectively mapped onto different subcarriers. The obtained SC-FDMA symbol is subjected to the inverse Fourier transform process before being transmitted. A propagation path information decoding unit (155) acquires frequency selection characteristic in a propagation path to/from a reception side. A cyclic shift unit (110) and a correlation characteristic judgment unit (115) adjust the frequency response of the SC-FDMA symbol according to the frequency selection characteristic. The adjustment is performed by a result of correlation obtained by performing a correlation calculation between the propagation path frequency selection characteristic and the SC-FDMA symbol.
摘要翻译：可以提供提高SC-FDMA传输信号的传输效率的SC-FDMA传输设备和SC-FDMA传输信号形成方法。 SC-FDMA发送装置（100）对由N个一次调制符号构成的一次调制信号序列进行离散付里叶变换处理，得到分别映射到不同子载波上的多个频率成分。所获得的SC-FDMA符号在发送之前进行傅立叶逆变换处理。传播路径信息解码单元（155）获取与接收侧的传播路径中的频率选择特性。循环移位单元（110）和相关特性判断单元（115）根据频率选择特性调整SC-FDMA符号的频率响应。通过在传播路径频率选择特性和SC-FDMA符号之间进行相关计算得到的相关结果来进行调整。

4. 发明申请

US20100008402A1 TRANSMITTER AND SYNCHRONIZATION CHANNEL FORMING METHOD 审中-公开
标题翻译：发射机和同步通道的形成方法
公开(公告)号：US20100008402A1
公开(公告)日：2010-01-14
申请号：US12523976
申请日：2007-01-23
申请人： Tomohiro Sugawara , Yuta Seki , Hiroki Haga
发明人： Tomohiro Sugawara , Yuta Seki , Hiroki Haga
IPC分类号： H04B1/69
CPC分类号： H04B1/69 , H04B2001/6912
摘要： Reduction in the detection accuracy of synchronization timing at the receiving end is prevented even if a GCL system changes in response to a GCL ID. A transmitter (100) has a GCL system generating section (101) for generating a GCL system signal, a scramble processing section (102) for scrambling the GCL system signal, and a sub-carrier mapping section (103) for arranging the scrambled GCL system signal in a sub-carrier in the direction of a frequency. With this, the peak width of the differential correlation value of the GCL system at the receiving end is narrowed, so that accurate synchronization timing can be detected at the receiving end.
摘要翻译：即使GCL系统响应于GCL ID而改变，也可以防止接收端的同步定时的检测精度的降低。发射机（100）具有用于产生GCL系统信号的GCL系统产生部分（101），用于对GCL系统信号进行加扰的加扰处理部分（102）和用于安排加扰的GCL的子载波映射部分（103）系统信号在子载波中的频率方向。由此，接收端的GCL系统的差分相关值的峰值宽度变窄，能够在接收端检测精确的同步定时。

5. 发明申请

US20130237222A1 COMMUNICATION TERMINAL DEVICE AND METHOD OF RECONNECTING WITH CELL 审中-公开
标题翻译：通信终端设备及其与小区重新配置的方法
公开(公告)号：US20130237222A1
公开(公告)日：2013-09-12
申请号：US13885892
申请日：2011-11-25
申请人： Yuta Seki
发明人： Yuta Seki
IPC分类号： H04W76/02
CPC分类号： H04W76/19 , H04W36/0079 , H04W36/08 , H04W36/305 , H04W48/16
摘要： A communication terminal device capable of increasing the success rate of reconnection while suppressing signal volume. A communication terminal (100) connects to and communicates with any cell from among a plurality of cells under the control of a base station. A neighboring cell information decoding unit (105) acquires neighboring cell information from a cell that is currently connected. A neighboring cell searching unit (106), when reconnection with a cell becomes necessary, initiates the search for a cell, while detecting from among the cells in the neighboring cell information the cell coinciding with a cell detected by the search as the cell to be reconnected. A reconnection request information generating unit (107) generates a reconnection request message for the cell to be reconnected, which is detected by the neighboring cell searching unit (106).
摘要翻译：一种通信终端装置，其能够在抑制信号容量的同时提高重新连接的成功率。通信终端（100）在基站的控制下连接到多个小区中的任何小区并与其通信。相邻小区信息解码单元（105）从当前连接的小区获取周边小区信息。相邻小区搜索单元（106）当与小区重新连接成为必要时，开始对小区的搜索，同时从相邻小区信息中的小区中检测出与由搜索检测到的小区一致的小区作为要被作为的小区重新连接再连接请求信息生成部（107）生成由相邻小区搜索部（106）检测出的要重新连接的小区的重新连接请求消息。

6. 发明授权

US08276036B2 Coding apparatus, coding processing target sequence forming method and viterbi decoding apparatus 有权
标题翻译：编码装置，编码处理对象序列形成方法和维特比解码装置
公开(公告)号：US08276036B2
公开(公告)日：2012-09-25
申请号：US12479572
申请日：2009-06-05
申请人： Yuta Seki
发明人： Yuta Seki
IPC分类号： H04L1/16
CPC分类号： H03M13/3994 , H03M13/09 , H03M13/235 , H03M13/4123 , H03M13/413 , H03M13/6306 , H03M13/6312 , H03M13/6356 , H03M13/6525 , H04L1/0041 , H04L1/0059 , H04L1/0071 , H04L1/0072 , H04L1/1896
摘要： The coding apparatus, coding processing target sequence forming method and Viterbi decoding apparatus of the present invention can realize low delay processing with a minimum number of repetitive processing and suppress the degradation of the accuracy of decoding at the ends of a decoded sequence due to truncation error. In the coding apparatus mounted on the transmitting apparatus (100), a control information rearranging section (130) receives as input a control information sequence, in which a plurality of control information blocks are arranged in a predetermined order, and forms a coding processing target sequence by rearranging the order of the plurality of control information blocks to form an assembled sequence grouping control information blocks comprised of predictable bit sequences in the plurality of control information blocks, and to allocate the assembled sequence to a predetermined position in the control information sequence. Further, an encoding section (140) encodes the coding target sequence using the tail-biting convolutional coding scheme.
摘要翻译：本发明的编码装置，编码处理对象序列形成方法和维特比解码装置可以以最小数量的重复处理实现低延迟处理，并且抑制由于截断误差导致的解码序列的末尾处的解码精度的劣化。在安装在发送装置（100）的编码装置中，控制信息重排部（130）接收作为输入的控制信息序列，其中以预定顺序排列多个控制信息块，并且形成编码处理目标通过重新排列多个控制信息块的顺序来形成由多个控制信息块中的可预测位序列组成的组合序列分组控制信息块，并将组合序列分配给控制信息序列中的预定位置。此外，编码部（140）使用尾咬卷积编码方式对编码对象序列进行编码。

7. 发明申请

US20120172076A1 RADIO BASE STATION APPARATUS, RADIO TERMINAL APPARATUS AND WIRELESS COMMUNICATION METHOD 有权
标题翻译：无线基站装置，无线终端装置和无线通信方法
公开(公告)号：US20120172076A1
公开(公告)日：2012-07-05
申请号：US13395593
申请日：2010-09-13
申请人： Yuta Seki
发明人： Yuta Seki
IPC分类号： H04W72/04
CPC分类号： H04L5/0035 , H04B7/024 , H04B7/0658 , H04W24/10 , H04W28/06 , H04W88/06
摘要： A radio base station apparatus wherein even when a single-base-station transmission and a plural-base-station cooperative transmission are implemented at the same time, the terminal-to-base-station feedback information amount and the ICI can be reduced, thereby improving the reception characteristic of a terminal existing in the vicinity of a cell edge. A base station (100) uses a first transmission mode, in which only the base station implements a signal transmission, and a second transmission mode, in which the base station implements a cooperative signal transmission together with another radio base station apparatus, to communicate with one or more radio terminal apparatuses. A setting unit (103) sets, as a particular frequency band the reception quality of which is to be measured, one of first and second frequency bands that are parts of a band used for communications with the terminals. A deciding unit (101) decides, as the transmission mode for the terminals, one of the first and second transmissions on the basis of the reception quality of the particular frequency band.
摘要翻译：一种无线基站装置，即使在同时实现单基站发送和多基站协作发送的情况下，也可以减少终端到基站反馈信息量和ICI，从而改善存在于小区边缘附近的终端的接收特性。基站（100）使用仅基站实现信号发送的第一发送模式和基站与其他无线基站装置一起实施协作信号发送的第二发送模式，与第二发送模式进行通信一个或多个无线电终端装置。设置单元（103）将作为其测量的接收质量的特定频带设置为用于与终端通信的频带的一部分的第一和第二频带中的一个。决定单元（101）基于特定频带的接收质量来决定作为终端的发送模式的第一和第二发送中的一个。

8. 发明申请

US20100189092A1 TRANSMITTER, TRANSMITTING METHOD, RECEIVER, AND RECEIVING METHOD 审中-公开
标题翻译：发射机，发射方法，接收机和接收方法
公开(公告)号：US20100189092A1
公开(公告)日：2010-07-29
申请号：US12666273
申请日：2007-06-28
申请人： Yuta Seki
发明人： Yuta Seki
IPC分类号： H04B7/208 , H04L27/00
CPC分类号： H04J11/00 , H04L5/0007 , H04L5/0044 , H04L5/006 , H04L5/0083
摘要： A transmitter which alleviates the effect of delayed waves without reducing the transmission efficiency to prevent degradation in overall throughput. In the transmitter for transmitting the SC-FDMA signals, a data realignment section (130) assigns a signal with better error characteristics or a signal requiring no high error characteristics toward the end of a symbol length of the SC-FDMA signal to obtain a time-region signal, and a time/frequency converter section (140) forms the SC-FDMA signal using the time-region signal. This allows the signal to be realigned by selecting the symbol end subject to the effect of delayed waves and the symbol center less subject to the effect of delayed waves out of the SC-FDMA symbol length. As a result, the influence of an error at the symbol end subject to the effect of delayed waves on the overall packet is reduced to prevent degradation in overall throughput.
摘要翻译：一种减轻延迟波影响而不降低传输效率以防止整体吞吐量下降的发射机。在用于发送SC-FDMA信号的发射机中，数据重新对准部分（130）向SC-FDMA信号的符号长度的末端分配具有更好误差特性的信号或不需要高误差特性的信号，以获得时间和时间/频率转换器部分（140）使用时域信号形成SC-FDMA信号。这允许信号通过选择受到延迟波影响的符号结束而符号中心较少受SC-FDMA符号长度之外的延迟波的影响而重新对准。结果，降低了符合延迟波对整个分组的影响的符号结束处的误差的影响，以防止整体吞吐量的降低。

9. 发明授权

US09379861B2 Radio base station apparatus, radio terminal apparatus and wireless communication method 有权
标题翻译：无线基站装置，无线终端装置及无线通信方式
公开(公告)号：US09379861B2
公开(公告)日：2016-06-28
申请号：US13395593
申请日：2010-09-13
申请人： Yuta Seki
发明人： Yuta Seki
IPC分类号： H04L5/00 , H04B7/02 , H04B7/06 , H04W24/10 , H04W28/06 , H04W88/06
CPC分类号： H04L5/0035 , H04B7/024 , H04B7/0658 , H04W24/10 , H04W28/06 , H04W88/06
摘要： A radio base station apparatus wherein even when a single-base-station transmission and a plural-base-station cooperative transmission are implemented at the same time, the terminal-to-base-station feedback information amount and the inter-cell interference (ICI) can be reduced. A base station uses a first transmission mode, in which only the base station implements a signal transmission, and a second transmission mode, in which the base station implements a cooperative signal transmission together with another radio base station apparatus, to communicate with one or more radio terminal apparatuses. A setting unit sets, as a particular frequency band whose reception quality is to be measured, one of first and second frequency bands that are parts of a band used for communication with the terminals. A deciding unit decides, as the transmission mode for the terminals, one of the first and second transmissions based on the reception quality of the particular frequency band.
摘要翻译：一种无线基站装置，即使在同时实现单基站发送和多基站协作发送的情况下，终端到基站反馈信息量和小区间干扰（ICI ）可以减少。基站使用仅基站实现信号传输的第一传输模式和基站与另一无线基站装置一起实施协作信号传输的第二传输模式，以与一个或多个无线终端装置。设置单元将作为要测量接收质量的特定频带设置为用于与终端通信的频带的一部分的第一和第二频带中的一个。决定单元基于特定频带的接收质量来决定作为终端的传输模式的第一和第二传输中的一个。

10. 发明授权

US08218681B2 OFDM transmitter and OFDM receiver 有权
标题翻译： OFDM发射机和OFDM接收机
公开(公告)号：US08218681B2
公开(公告)日：2012-07-10
申请号：US12440894
申请日：2006-09-11
申请人： Yuta Seki
发明人： Yuta Seki
IPC分类号： H04L27/00
CPC分类号： H04L27/2656 , H04J11/0076 , H04L5/0007 , H04L5/0053 , H04L5/0082 , H04L7/042 , H04L25/03866 , H04L27/2613 , H04L27/2655 , H04L27/2675
摘要： An OFDM transmitter and receiver realizing high-speed cell search and having a reducible circuit scale. An OFDM transmitter includes an SCH inserting section for constructing a frame where a synchronization sequence in a predetermined position from the head of a first sub-frame is arranged and a synchronization sequence composed of the symbols of the former synchronization sequence and the symbols whose I, Q components are interchanged is arranged in a predetermined position from the head of a second sub-frame adjacent in the time-axis direction to the former sub-frame, an IFFT section, a P-SCH conversion section, and an RF transmitting section for transmitting this frame. Thus, the receiving end of the frame can locate the position of either synchronization sequence and determine the frame timing from that position, thereby increasing the speed of the cell search.
摘要翻译：实现高速小区搜索并具有可缩减电路规模的OFDM发射机和接收机。 OFDM发送器包括：SCH插入部，用于构成从第一子帧的头部配置有预定位置的同步序列的帧，以及由前同步序列的符号和I， Q分量被交换在从时间轴方向相邻的第二子帧的头部到前一个子帧的预定位置，IFFT部分，P-SCH转换部分和RF发送部分传输这个帧。因此，帧的接收端可以定位任一同步序列的位置，并从该位置确定帧定时，从而增加小区搜索的速度。

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