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    • 81. 发明授权
    • Radio apparatus
    • 无线电设备
    • US07899413B2
    • 2011-03-01
    • US11521488
    • 2006-09-15
    • Seigo Nakao
    • Seigo Nakao
    • H04B7/02H04B1/02H04B1/04
    • H04B7/0413H04B7/0667H04L1/0003H04L1/0009H04L5/0023H04L5/0048H04L5/0064H04L25/0204H04L25/0226H04L27/2613H04L27/2662
    • A control unit, in cooperation with an interface (IF) unit, a modulation unit and a baseband processing unit, produces a packet signal composed of a plurality of streams. While using as a reference a first known signal assigned to one of the plurality of streams and performing a cyclic timing shift within the first known signal on a first known signal assigned to another stream, the control unit performs a timing shift also on an extensional known signal assigned to a stream where no data is assigned. The amounts of timing shift are given degrees of priority beforehand and for the stream where data signals are assigned the control unit uses the amounts of timing shift in descending degree of priority. For the stream where no data signal is assigned, the control unit uses the amounts of timing shift also in descending degree of priority.
    • 控制单元与接口(IF)单元,调制单元和基带处理单元协同生成由多个流组成的分组信号。 在使用分配给多个流之一的第一已知信号作为第一已知信号并且在分配给另一个流的第一已知信号上在第一已知信号内执行循环定时偏移的情况下,控制单元还对延伸已知的 分配给没有分配数据的流的信号。 定时偏移量预先被给予优先等级,对于分配数据信号的流,控制单元以降序的优先级使用定时偏移量。 对于没有分配数据信号的流,控制单元也以降序的优先级使用定时偏移量。
    • 85. 发明申请
    • WIRELESS TRANSMITTING APPARATUS AND WIRELESS TRANSMITTING METHOD
    • 无线传输设备和无线传输方法
    • US20100302996A1
    • 2010-12-02
    • US12744775
    • 2008-11-17
    • Atsushi MatsumotoAyako HoriuchiDaichi ImamuraSeigo Nakao
    • Atsushi MatsumotoAyako HoriuchiDaichi ImamuraSeigo Nakao
    • H04J3/08
    • H04L1/0057H04B7/15521H04B7/2606H04L1/0083H04L2001/0097H04W88/04
    • There are provided a wireless transmitting apparatus and a wireless transmission method that enable reduction of transmission delay of a system by enhancing receiving performance achieved during transmission of network-coded data. A decoding section 18 subjects a demodulated signal to error correction decoding and outputs the decoded signal to a buffer 17. The buffer 17 holds a data packet for a given period of time and outputs the packet to an encoding section 12. An encoding control section 11 controls an encoding rate for transmission data and outputs control information to the encoding section 12. In accordance with control information from the encoding control section 11, the encoding section 12 subjects a data packet to error correction encoding and outputs the coded data packet to a coding section 13. The coding section 13 subjects data sequences that pair up with each other to XOR processing and outputs a processing result to a modulation section 14. A wireless transmission section 15 subjects a modulated signal to transmission processing, such as digital-to-analogue conversion, up-conversion, and amplification, and transmits the signal subjected to transmission processing from an antenna 16 through wireless communication.
    • 提供了一种无线发送装置和无线传输方法,其能够通过增强在网络编码数据的传输期间实现的接收性能来减少系统的传输延迟。 解码部分18对解调的信号进行纠错解码,并将解码的信号输出到缓冲器17.缓冲器17保持数据分组一段给定的时间段,并将该分组输出到编码部分12.编码控制部分11 控制发送数据的编码率并将控制信息输出到编码部分12.根据来自编码控制部分11的控制信息,编码部分12对数据分组进行纠错编码,并将编码数据分组输出到编码 编码部13将彼此配对的数据序列进行异或处理,并将处理结果输出到调制部14.无线发送部15将调制信号进行发送处理,例如数字到模拟 转换,上变频和放大,并且通过导线从天线16发送经过发送处理的信号 沟通较少
    • 89. 发明申请
    • RADIO COMMUNICATION APPARATUS, RADIO COMMUNICATION METHOD, AND RADIO COMMUNICATION SYSTEM
    • 无线电通信设备,无线电通信方法和无线电通信系统
    • US20100246708A1
    • 2010-09-30
    • US12743640
    • 2008-11-19
    • Ayako HoriuchiDaichi ImamuraSeigo Nakao
    • Ayako HoriuchiDaichi ImamuraSeigo Nakao
    • H04L25/49
    • H04L27/34H04B7/15521H04L1/0002H04L1/0007H04L1/0009H04L1/0041H04L2001/0097
    • A radio communication apparatus, a radio communication method, and a radio communication system, which are capable of improving receiving reliability of predetermined bits such as bits having a high degree of importance, and the like, are provided. A code length L is decided based on the modulation system and the coding rate being specified, and the bit length of S2. The relay station decides a coding rate of S1 from the code length L. In the case of 16 QAM, since a half of all bits correspond to the bits used as the object of the quadrant discrimination, the bit length of S1 is set to L/2. Therefore, the coding rate of S1 is 2(LS1)/L, where the bit length of S1 is LS1. In the present example, S1 is coded and gives S1+P1, and S2 is coded and gives S2+P4. P1 denotes the parity bit of S1, and P4 denotes the parity bit of S2. The relay station changes the bit arrangement such that all bits of the code word (S1+P1) of S1 come to the position of the quadrant discrimination in the constellation of 16 QAM respectively.
    • 提供能够提高诸如具有高度重要度的位的预定位的接收可靠性的无线电通信装置,无线电通信方法和无线电通信系统等。 代码长度L是根据调制方式和指定的编码率,S2的位长决定的。 中继站从码长L确定S1的编码率。在16QAM的情况下,由于所有比特的一半对应于用作象限鉴别的对象的比特,所以将S1的比特长度设置为L / 2。 因此,S1的编码率为2(LS1)/ L,S1的位长为LS1。 在本示例中,S1被编码并给出S1 + P1,S2被编码并给出S2 + P4。 P1表示S1的奇偶校验位,P4表示S2的奇偶校验位。 中继站改变比特布置,使得S1的码字(S1 + P1)的所有比特分别到达16QAM的星座图中的象限鉴别的位置。