公开(公告)号：US20190207791A1

公开(公告)日：2019-07-04

申请号：US16296568

申请日：2019-03-08

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Yutaka MURAKAMI ,  Kiyotaka KOBAYASHI ,  Masayuki ORIHASHI ,  Akihiko MATSUOKA

IPC: H04L27/00 ,  H04B7/0413 ,  H04L1/00 ,  H04L5/00 ,  H04L27/34 ,  H04L1/08 ,  H04B7/0417 ,  H04L1/06

CPC classification number: H04L27/0008 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0669 ,  H04L1/0006 ,  H04L1/0026 ,  H04L1/06 ,  H04L1/0618 ,  H04L1/08 ,  H04L5/0046 ,  H04L27/3405 ,  H04W52/42

Abstract: 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.

公开(公告)号：US20150358970A1

公开(公告)日：2015-12-10

申请号：US14825410

申请日：2015-08-13

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Yutaka MURAKAMI ,  Shinichiro TAKABAYASHI ,  Masayuki ORIHASHI ,  Akihiko MATSUOKA

IPC: H04W72/04 ,  H04L27/26 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04L5/0058 ,  H04B1/692 ,  H04L1/0001 ,  H04L1/0003 ,  H04L5/0007 ,  H04L5/0021 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0075 ,  H04L5/0092 ,  H04L27/0008 ,  H04L27/2601 ,  H04W72/0453

Abstract: A wireless communication method is provided for a transmission apparatus that transmits an OFDM (orthogonal frequency division multiplexing) signal using a communication band that comprises a plurality of subcarrier groups each including a plurality of subcarriers. The method includes specifying which subcarrier group and how many subcarriers are to be used to transmit the OFDM signal and determining a configuration of a transmission frame, generating the OFDM signal by mapping data symbols according to the determined configuration of the transmission frame, and transmitting the generated OFDM signal. The number of subcarriers to be used to transmit the OFDM signal is variable, the OFDM signal may be generated using a plurality of modulation schemes including QPSK and 16QAM, and a plurality of mapping patterns are prepared for each of the plurality of modulation schemes.

Abstract translation: 提供一种无线通信方法，用于使用包括多个子载波组的通信频带发送OFDM（正交频分复用）信号的发送装置，每个副载波组包括多个子载波。 该方法包括：确定哪个子载波组和多少个子载波将用于发送OFDM信号，并确定传输帧的配置;通过根据所确定的传输帧的配置映射数据符号来生成OFDM信号，以及发送 生成的OFDM信号。 用于发送OFDM信号的子载波的数量是可变的，可以使用包括QPSK和16QAM的多个调制方案来生成OFDM信号，并且为多个调制方案中的每一个准备多个映射模式。