公开(公告)号：EP2475196A1

公开(公告)日：2012-07-11

申请号：EP10812054.4

申请日：2010-08-30

Applicant: Sharp Kabushiki Kaisha ,  Osaka University

Inventor： YOKOMAKURA, Kazunari ,  HAMAGUCHI, Yasuhiro ,  TAKAHASHI, Hiroki ,  GOTO, Jungo ,  NAKAMURA, Osamu ,  IBI, Shinsuke ,  SAMPEI, Seiichi ,  MIYAMOTO, Shinichi

IPC: H04W16/28 ,  H04B7/04 ,  H04B7/15 ,  H04L1/00 ,  H04W16/26

CPC classification number: H04B7/15521 ,  H04L1/0065

Abstract: A wireless communication system includes: a multiple number of mobile station apparatuses that transmit coded bits obtained by applying error-correction coding to information bits; a relay station apparatus that receives coded bits from the multiple mobile station apparatuses, applies network coding on the coded bits and transmits the network-coded bits; and a base station apparatus that receives and decodes the codedbits and the network-codedbits, wherein the base station apparatus, when decoding the received coded bits, performs iterative decoding by regarding the received coded bits as a serially concatenated code of network coding and error correction coding. Accordingly, decoding is performed by regarding the network code and the error correction code as a serial concatenated code, it is possible to obtain diversity with a simple configuration. Further, since no lamination is imposed on the error correction codingmethod, it is possible to provide a wireless communication system and the like which allow flexible system design.

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：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。

公开(公告)号：EP2180624B1

公开(公告)日：2020-08-05

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: H04L5/00 ,  H04L25/02 ,  H04L25/03 ,  H04L27/26 ,  H04W72/04

公开(公告)号：EP2475196B1

公开(公告)日：2017-08-23

申请号：EP10812054.4

申请日：2010-08-30

Applicant: Sharp Kabushiki Kaisha ,  Osaka University

Inventor： YOKOMAKURA, Kazunari ,  HAMAGUCHI, Yasuhiro ,  TAKAHASHI, Hiroki ,  GOTO, Jungo ,  NAKAMURA, Osamu ,  IBI, Shinsuke ,  SAMPEI, Seiichi ,  MIYAMOTO, Shinichi

IPC: H04W16/28 ,  H04B7/04 ,  H04B7/155 ,  H04L1/00 ,  H04W16/26

CPC classification number: H04B7/15521 ,  H04L1/0065

公开(公告)号：EP2405598A1

公开(公告)日：2012-01-11

申请号：EP10748766.2

申请日：2010-03-03

Applicant: Sharp Kabushiki Kaisha ,  Osaka University

Inventor： YOKOMAKURA, Kazunari ,  HAMAGUCHI, Yasuhiro ,  NAKAMURA, Osamu ,  GOTO, Jungo ,  TAKAHASHI, Hiroki ,  IBI, Shinsuke ,  SAMPEI, Seiichi ,  MIYAMOTO, Shinichi

IPC: H04J11/00 ,  H04L27/01

CPC classification number: H04L25/022 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0058 ,  H04L5/0094 ,  H04L25/0228

Abstract: Based on a data signal and a known reference signal, a frequency response of a channel is predicted, and the state of the channel over the entire transmission band is predicted such that frequency allocation is performed in a short period of time. A reception apparatus that receives a signal from a transmission apparatus which distributedly arranges signals in a frequency domain into a plurality of frequencies and which performs wireless transmission, the reception apparatus including: a channel property prediction unit (57) that predicts a channel property over an entire transmission band based on the distributedly arranged channel estimation reference signal; an allocation frequency determination unit (58) that determines the plurality of frequencies in which the signals in the frequency domain are distributedly arranged; and a frequency allocation information generation unit (59) that generates frequency allocation information indicating the determined plurality of frequencies. The reception apparatus transmits the frequency allocation information to the transmission apparatus.

Abstract translation: 基于数据信号和已知参照信号，信道的频率响应被预测，并且信道在整个传输频带的状态被预测搜索没有频率分配在很短的时间周期内执行。 一种接收装置没有从该分布式排列在频域信号转换成频率处的多个并执行无线传输，接收装置包括发送装置接收的信号：（57）做了一个信道特性预测单元预测到的信道特性 基于该分散配置的信道估计的参考信号的整个传输带; 分配频度判定单元（58）做了确定性的地雷，其中在频域中的信号分散配置频率的多元性; 以及频率分配信息生成单元（59）那样生成速率的频率分配信息指示的频率的确定性开采多元性。 的接收装置发送该频率分配信息的发送装置。