Transmission apparatus and reception apparatus

    公开(公告)号:US10924135B2

    公开(公告)日:2021-02-16

    申请号:US16421624

    申请日:2019-05-24

    摘要: In a multi-antenna communication system using LDPC codes, a simple method is used to effectively improve the received quality by performing a retransmittal of less data without restricting applicable LDPC codes. In a case of a non-retransmittal, a multi-antenna transmitting apparatus transmits, from two antennas, LDPC encoded data formed by LDPC encoding blocks. In a case of a retransmittal, the multi-antenna transmitting apparatus uses a transmission method, in which the diversity gain is higher than in the previous transmission, to transmit only a part of the LDPC encoded data as previously transmitted. For example, the only the part of the LDPC encoded data to be re-transmitted is transmitted from the single antenna.

    Transmission signal generating apparatus and method, and reception data generating apparatus and method
    5.
    发明授权
    Transmission signal generating apparatus and method, and reception data generating apparatus and method 有权
    发送信号生成装置和方法以及接收数据生成装置和方法

    公开(公告)号:US09374195B2

    公开(公告)日:2016-06-21

    申请号:US14678389

    申请日:2015-04-03

    摘要: A transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased. An encoding part subjects transport data to a block encoding process to form block encoded data. A modulating part modulates the block encoded data to form data symbols; and an arranging (interleaving) part arranges (interleaves) the block encoded data in such a manner that the intra-block encoded data of the encoded blocks, which include their respective single different data symbol, get together, and then supplies the arranged (interleaved) block encoded data to the modulating part. In this way, there can be provided a transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased.

    摘要翻译: 一种发射机装置,即使当调制多值的数量增加时,使用相对简单的结构来抑制突发错误,而不改变编码块的块大小。 编码部分将传输数据转移到块编码处理以形成块编码数据。 调制部分调制块编码数据以形成数据符号; 并且排列(交织)部分以这样的方式布置(交织)块编码数据,使得包括它们各自的单个不同数据符号的编码块的块内编码数据在一起,然后提供所安排的(交织的 )块编码数据到调制部分。 以这种方式,可以提供一种发射机装置,即使当调制多值的数量增加时,使用相对简单的结构来抑制突发错误,而不改变编码块的块大小。

    TRANSMISSION APPARATUS AND METHOD, AND RECEPTION APPARATUS AND METHOD
    9.
    发明申请
    TRANSMISSION APPARATUS AND METHOD, AND RECEPTION APPARATUS AND METHOD 审中-公开
    传输装置和方法以及接收装置和方法

    公开(公告)号:US20150244434A1

    公开(公告)日:2015-08-27

    申请号:US14709858

    申请日:2015-05-12

    IPC分类号: H04B7/04 H04L27/00

    摘要: Modulated signal A is transmitted from a first antenna, and modulated signal B is transmitted from a second antenna. As modulated signal B, modulated symbols S2(i) and S2(i+1) obtained from different data are transmitted at time i and time i+1 respectively. In contrast, as modulated signal A, modulated symbols S1(i) and S1(i)′ obtained by changing the signal point arrangement of the same data are transmitted at time i and time i+1 respectively. As a result the reception quality can be changed intentionally at time i and time i+1, and therefore using the demodulation result of modulated signal A of a time when the reception quality is good enables both modulated signals A and B to be demodulated with good error rate performances.

    摘要翻译: 从第一天线发送调制信号A,从第二天线发送调制信号B. 作为调制信号B,分别在时间i和时间i + 1发送从不同数据获得的调制符号S2(i)和S2(i + 1)。 相反,作为调制信号A,分别在时间i和时间i + 1发送通过改变相同数据的信号点排列获得的调制符号S1(i)和S1(i)'。 结果,可以在时间i和时间i + 1有意地改变接收质量,因此当接收质量好的时候使用调制信号A的解调结果使得调制信号A和B能够被良好地解调 错误率表现。