公开(公告)号：EP2445130A1

公开(公告)日：2012-04-25

申请号：EP10789159.0

申请日：2010-05-26

Applicant: Sharp Kabushiki Kaisha

Inventor： HIRATA, Kozue ,  ONODERA, Takashi ,  NAKANO, Hiroshi ,  KUBOTA, Minoru ,  OKAMOTO, Naoki

IPC: H04J99/00 ,  H04B7/04 ,  H04J11/00

CPC classification number: H04L25/03305 ,  H04B1/7107 ,  H04B1/7117 ,  H04B7/0413 ,  H04B7/0691 ,  H04L1/0048 ,  H04L5/0023 ,  H04L25/03171 ,  H04L25/03216 ,  H04L25/03286 ,  H04L25/03292 ,  H04L25/03318 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: A wireless communication apparatus includes: a channel information acquiring unit that, based on a received signal, acquires a transmitted signal channel matrix that is channel information as a transmitted signal of a pre-interference-removal transmitted signal group and an interference signal channel matrix that is channel information as an interference signal of the non-interference-removed transmitted signal group; an interference signal calculating unit that generates an interference signal group at the time of reception by the non-interference-removed transmitted signal group with respect to the pre-interference-removal transmitted signal group, based on the pre-interference-removal transmitted signal group, the non-interference-removed transmitted signal group, the transmitted signal channel matrix, and the interference signal channel matrix; an interference signal subtracting unit that subtracts the interference signal group from the pre-interference-removal transmitted signal group to generate a post-interference-removal transmitted signal group; and a transmission antenna group that transmits the post-interference-removal transmitted signal group and the non-interference-removed transmitted signal group from mutually different transmission antennas.

Abstract translation: 无线通信装置包括：信道信息获取单元，其基于接收到的信号，获取作为信道信息的发送信号信道矩阵作为预干扰消除发送信号组的发送信号和干扰信号信道矩阵， 是作为干扰去除的发送信号组的干扰信号的信道信息; 干扰信号计算单元，其基于所述预干扰去除发送信号组，生成相对于所述除干扰去除发送信号组的所述不干扰去除发送信号组的接收时的干扰信号组 ，无干扰去除的发送信号组，发射信号信道矩阵和干扰信号信道矩阵; 干扰信号减去单元，其从所述预干扰去除发送信号组中减去所述干扰信号组，以生成干扰去除后的发送信号组; 以及从相互不同的发送天线发送干扰去除后发送信号组和不干扰去除发送信号组的发送天线组。

公开(公告)号：EP2251997A1

公开(公告)日：2010-11-17

申请号：EP09712588.4

申请日：2009-02-19

Applicant: Sharp Kabushiki Kaisha

Inventor： HAMAGUCHI, Yasuhiro ,  NAMBA, Hideo ,  TO, Shimpei ,  YOKOMAKURA, Kazunari ,  KUBOTA, Minoru

IPC: H04J11/00 ,  H04B7/02 ,  H04B7/12 ,  H04L27/01 ,  H04W52/04 ,  H04W72/04

CPC classification number: H04L27/2636 ,  H04B7/12 ,  H04L5/0007 ,  H04L5/0042 ,  H04L27/2614 ,  H04W52/42

Abstract: In a frequency control single carrier system, a frequency diversity gain is obtained in transmission diversity with one symbol. A wireless transmission apparatus, which has a plurality of antennas and performs radio transmission in a single carrier communication system, comprises a DFT unit (4) time-frequency converting a plurality of input time-domain signals to output a plurality of frequency-domain signals, a spectrum encoding unit(5) encoding each of the output frequency-domain signals, and a transmission unit (6-1 to 11-2) frequency-time converting the encoded frequency-domain signal to radio-transmit a time-domain signal using at least one antenna.

Abstract translation: 在一个频率控制单载波系统中，频率分集​​增益，获得在发送分集与一个符号。 一种无线传输装置，其具有天线的多元性和在单载波通信系统中进行无线传输，包括DFT单元（4）的时间 - 频率输入的时域信号的多个转换，以输出频域信号的多元性 中，频谱编码单元（5）编码每个输出频域信号的，以及发送单元（6-1至11-2）的频率 - 时间编码的频域信号转换到无线电发送的时域信号 使用至少一个天线。

公开(公告)号：EP2398204B1

公开(公告)日：2016-12-07

申请号：EP10741289.2

申请日：2010-02-12

Applicant: Sharp Kabushiki Kaisha ,  Suzuki, Hiroshi ,  Fukawa, Kazuhiko ,  Suyama, Satoshi

Inventor： SUZUKI Hiroshi ,  FUKAWA Kazuhiko ,  SUYAMA Satoshi ,  YOSHIMOTO, Takashi ,  KUBOTA, Minoru ,  OKAMOTO, Naoki

IPC: H04L27/38 ,  H04L27/233 ,  H04L27/00

CPC classification number: H04L27/3863 ,  H04L27/0014 ,  H04L27/2337 ,  H04L2027/0026

公开(公告)号：EP2190139B1

公开(公告)日：2013-09-11

申请号：EP08831182.4

申请日：2008-09-12

Applicant: Sharp Kabushiki Kaisha

Inventor： HAMAGUCHI, Yasuhiro ,  KUBOTA, Minoru ,  NAMBA, Hideo ,  TOH, Shimpei ,  YOKOMAKURA, Kazunari

IPC: H04J13/20 ,  H04B1/707 ,  H04J1/00 ,  H04B1/692 ,  H04L27/26 ,  H04L5/02 ,  H04J13/00

CPC classification number: H04B7/15 ,  H04B1/692 ,  H04B1/707 ,  H04B2201/70706 ,  H04J13/0044 ,  H04J13/20 ,  H04L5/0021 ,  H04L5/026 ,  H04L27/2615 ,  H04L27/2636 ,  H04L27/2647 ,  H04W72/0446

公开(公告)号：EP2398204A1

公开(公告)日：2011-12-21

申请号：EP10741289.2

申请日：2010-02-12

Applicant: Sharp Kabushiki Kaisha ,  Suzuki, Hiroshi ,  Fukawa, Kazuhiko ,  Suyama, Satoshi

Inventor： SUZUKI Hiroshi ,  FUKAWA Kazuhiko ,  SUYAMA Satoshi ,  YOSHIMOTO, Takashi ,  KUBOTA, Minoru ,  OKAMOTO, Naoki

IPC: H04L27/38 ,  H04L27/22

CPC classification number: H04L27/3863 ,  H04L27/0014 ,  H04L27/2337 ,  H04L2027/0026

Abstract: A receiver apparatus 200 receiving a quadrature-modulated, modulated wave, includes: a real-zero signal generator 205 for adding a sinusoidal wave to the modulated wave to generate a real-zero signal; an in-phase and quadrature component detector 206 for extracting an in-phase component signal and a quadrature component signal from the real-zero signal; a real-zero sequence generator 207 for generating a real-zero sequence as a sequence of time points at which the in-phase component and quadrature component signals become zero; and a signal reconstruction unit 208 for reproducing the in-phase component and quadrature component from the real-zero sequence. With this, it is possible to provide a receiving apparatus etc. that enables decoding of a received signal with high precision even when sufficient linearity cannot be secured in the analog circuit of the receiver apparatus.

Abstract translation: 接收正交调制调制波的接收机装置200包括：实零信号发生器205，用于将正弦波加到调制波以产生实零信号; 用于从实零信号中提取同相分量信号和正交分量信号的同相和正交分量检测器206; 用于产生实零序列作为同相分量和正交分量信号变为零的时间点序列的实数零序发生器207; 以及用于从实零序列再现同相分量和正交分量的信号重构单元208。 由此，即使在接收装置的模拟电路中不能确保足够的线性度的情况下，也能够提供能够高精度地对接收信号进行解码的接收装置等。

公开(公告)号：EP2293615A1

公开(公告)日：2011-03-09

申请号：EP09762421.7

申请日：2009-06-04

Applicant: Sharp Kabushiki Kaisha

Inventor： NAKAMURA, Osamu ,  KUBOTA, Minoru ,  HAMAGUCHI, Yasuhiro ,  TO, Shimpei ,  YOKOMAKURA, Kazunari

IPC: H04W16/26 ,  H04B7/155 ,  H04W88/06 ,  H04W88/10

CPC classification number: H04B7/2606 ,  H04L1/0003 ,  H04L1/0056 ,  H04L5/0044 ,  H04L25/03159 ,  H04L27/0008 ,  H04L2025/03414

Abstract: It is aimed to expand a coverage area of a transmission apparatus by relay, while improving spectral efficiency (cell throughput). A relay apparatus for transmitting a signal received from a transmission apparatus to a reception apparatus has a received signal processing section 33 that demodulates a signal received from the transmission apparatus, a selecting section 34 that selects a transmission scheme enabling the reception apparatus to demodulate from among a plurality of transmission schemes, and signal generating sections 35a and 35b that generate a signal used in the transmission scheme selected by the selecting section 34 based on the signal demodulated by the received signal processing section 33.

Abstract translation: 旨在通过中继扩展传输装置的覆盖区域，同时提高频谱效率（小区吞吐量）。 用于将从发送装置接收的信号发送到接收装置的中继装置具有对从发送装置接收到的信号进行解调的接收信号处理部33;选择部34，其选择使接收装置能够从 多个发送方式以及信号生成部35a，35b，根据由接收信号处理部33解调出的信号，生成由选择部34选择的发送方式中使用的信号。

公开(公告)号：EP2271011A1

公开(公告)日：2011-01-05

申请号：EP09734509.4

申请日：2009-04-22

Applicant: Sharp Kabushiki Kaisha

Inventor： TO, Shimpei ,  KUBOTA, Minoru ,  HAMAGUCHI, Yasuhiro ,  NAKAMURA, Osamu ,  YOKOMAKURA, Kazunari ,  SAMPEI, Seiichi ,  MIYAMOTO, Shinichi ,  IBI, Shinsuke

IPC: H04J11/00 ,  H04J1/00 ,  H04L27/01 ,  H04W72/04

CPC classification number: H04W72/06 ,  H04J11/00 ,  H04L5/0039 ,  H04L25/03171 ,  H04L27/2636

Abstract: To provide a system that can accommodate a greater number of terminals within a limited band and can obtain a higher transmission rate. While the number of frequency signals (spectrums) output in parallel by performing a spread spectrum from the DFT unit of each terminal is 12, the number of sub-carriers constituting one sub-channel is set at 10 or 11. In this case, the users (users A and G) allocated to the sub-channels at both ends of the band will not perform transmission of one frequency signal at the end (one sub-carrier) of all the frequency signals output from the DFT unit, whereas the users (users B to F) allocated to the other sub-channels will not perform transmission of the frequency signals at the ends (two sub-carriers). This transmission can be realized by deleting (clipping) the associated number of signals from both ends or from one end of the frequency signals output from the DFT unit of each terminal and allocating the frequency signals after clipping, to individual sub-channels.

Abstract translation: 提供一种能够在有限频带内容纳更多数量的终端并且可以获得更高传输速率的系统。 虽然通过从每个终端的DFT单元执行扩展频谱并行输出的频率信号（频谱）的数量是12，但是构成一个子信道的子载波的数量被设置为10或11.在这种情况下， 分配给频带两端的子信道的用户（用户A和G）将不会在从DFT单元输出的所有频率信号的结尾（一个子载波）处执行一个频率信号的传输，而用户 （用户B至F）分配给其他子信道将不会在端部（两个子载波）处执行频率信号的传输。 可以通过从每个终端的DFT单元输出的频率信号的两端或从一端删除（限制）相关数量的信号并且将剪辑后的频率信号分配给各个子信道来实现该传输。

公开(公告)号：EP2271010A1

公开(公告)日：2011-01-05

申请号：EP09734503.7

申请日：2009-04-22

Applicant: Osaka University ,  Sharp Kabushiki Kaisha

Inventor： IBI, Shinsuke ,  SAMPEI, Seiichi ,  MIYAMOTO, Shinichi ,  YOKOMAKURA, Kazunari ,  KUBOTA, Minoru ,  HAMAGUCHI, Yasuhiro ,  TO, Shimpei ,  NAKAMURA, Osamu

IPC: H04J11/00 ,  H04B7/005 ,  H04J1/00 ,  H04L27/01

CPC classification number: H04J11/00 ,  H04L25/03159 ,  H04L25/03834 ,  H04L27/2614 ,  H04L27/2626 ,  H04W52/24 ,  H04W52/346

Abstract: A clipping rate is controlled in spectrum shaping according to a propagation path to thereby improve transmission characteristics and perform communication at a stable transmission rate.
Propagation path characteristics are detected by a propagation path information detection unit 5 for detecting propagation path information fed back from a base station device and a water filling principle for distributing energy by a primary spectrum shaping unit 6 according to the propagation path characteristics is applied to transmission spectrum obtained by a DFT unit 4. Clipping information in secondary spectrum shaping fed back from the base station device is detected by a clipping information detection unit 7 to perform the secondary spectrum shaping by a secondary spectrum shaping unit 8. At this time, with the clipping rate by the secondary spectrum shaping unit 8, clipping rates of all transmission devices multiplexed in a scheduling unit 26 of the base station device are controlled adaptively.

Abstract translation: 根据传播路径在频谱整形中控制限幅率，从而提高传输特性，并以稳定的传输速率进行通信。 传播路径特性由用于检测从基站装置反馈的传播路径信息的传播路径信息检测单元5检测，并且根据传播路径特性将主频谱整形单元6分配能量的灌水原理应用于传输 由DFT单元4获得的频谱。由限幅信息检测单元7检测从基站装置反馈的二次频谱整形中的剪辑信息，以由次频谱整形单元8执行二次频谱整形。此时， 通过二次频谱整形单元8的削波率，自适应地控制在基站装置的调度单元26中复用的所有发送装置的削波率。

公开(公告)号：EP2190139A1

公开(公告)日：2010-05-26

申请号：EP08831182.4

申请日：2008-09-12

Applicant: Sharp Kabushiki Kaisha

Inventor： HAMAGUCHI, Yasuhiro ,  KUBOTA, Minoru ,  NAMBA, Hideo ,  TOH, Shimpei ,  YOKOMAKURA, Kazunari

IPC: H04J11/00 ,  H04B1/707 ,  H04J1/00

CPC classification number: H04B7/15 ,  H04B1/692 ,  H04B1/707 ,  H04B2201/70706 ,  H04J13/0044 ,  H04J13/20 ,  H04L5/0021 ,  H04L5/026 ,  H04L27/2615 ,  H04L27/2636 ,  H04L27/2647 ,  H04W72/0446

Abstract: A transmission apparatus according to the present invention includes: an encoding section; a modulation section; a variable-SF spreading section that performs spreading with variable SF according to control information A from a control section; an IDFT section that performs IDFT on output from the spreading section; a GI inserting section; a parallel/serial conversion section that converts output from the GI inserting section into a serial data sequence; a digital/analog conversion section; and an RF section that transmits a signal from an antenna after converting the signal to a frequency band for analog signal transmission and controlling it to an appropriate transmission power. The control section is configured to generate control information A for determining the variable SF and input the information A to the variable-SF spreading section and the RF section. In control information A, SF is varied depending on transmission power required.

Abstract translation: 根据本发明的发送装置包括：编码部分; 调制部; 可变SF扩展部，其根据来自控制部的控制信息A，以可变SF进行扩展; IDFT部分，用于在扩展部分的输出上执行IDFT; GI插入部分; 并行/串行转换部分，其将来自GI插入部分的输出转换成串行数据序列; 数字/模拟转换部分; 以及在将信号转换成用于模拟信号传输的频带并将其控制到适当的发送功率之后从天线发送信号的RF部分。 控制部分被配置为产生用于确定变量SF并且将信息A输入到可变SF扩展部分和RF部分的控制信息A. 在控制信息A中，SF取决于所需的发射功率而变化。

公开(公告)号：EP2180624A1

公开(公告)日：2010-04-28

申请号：EP08827557.3

申请日：2008-08-13

Applicant: Sharp Kabushiki Kaisha

Inventor： YOKOMAKURA, Kazunari ,  HAMAGUCHI, Yasuhiro ,  TO, Shimpei ,  KUBOTA, Minoru ,  NAMBA, Hideo ,  SAMPEI, Seiichi ,  MIYAMOTO, Shinichi ,  IBI, Shinsuke

IPC: H04J99/00 ,  H04B7/04 ,  H04J11/00

Abstract: Each of first radio communication devices includes; a frequency spread unit which spreads frequency of a transmitted signal to generate a frequency-spread signal; and a mapping unit which allocates the frequency-spread signal to a subcarrier according to the mapping information which specifies a subcarrier. A second radio communication device includes: a demapping unit which extracts from a received signal a signal of the subcarrier specified by the mapping information; and an inverse frequency spread unit which inverse-frequency-spreads the extracted signal. The first radio communication device or the second radio communication device includes a use subcarrier decision unit that decides a subcarrier to which the frequency-spread-signal is allocated according to a communication path capacity of each subcarrier of each antenna used for transmission by the first radio communication devices and generates mapping information used to specify the decided subcarrier.

Abstract translation: 第一无线电通信装置中的每一个包括： 频率扩展单元，其扩展发送信号的频率以产生频率扩展信号; 以及映射单元，其根据指定副载波的映射信息将频率扩展信号分配给子载波。 第二无线电通信装置包括：解映射单元，从接收信号中提取由映射信息指定的副载波的信号; 以及对所提取的信号进行反频率扩展的逆频率扩展单元。 第一无线通信装置或第二无线通信装置包括使用子载波判定单元，根据通过第一无线发送的每个天线的每个副载波的通信路径容量，决定分配了扩频信号的副载波 通信设备并且生成用于指定所确定的子载波的映射信息。