公开(公告)号：US09112595B2

公开(公告)日：2015-08-18

申请号：US13891027

申请日：2013-05-09

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Yutaka Murakami ,  Shinichiro Takabayashi ,  Masayuki Orihashi ,  Akihiko Matsuoka

IPC: H04B1/711 ,  H04B1/707 ,  H04B1/7075 ,  H04J13/00 ,  H04L1/00 ,  H04L27/18 ,  H04L27/227 ,  H04L27/26 ,  H04L27/34 ,  H04L27/38 ,  H04L5/00 ,  H04L27/00

CPC classification number: H04B1/711 ,  H04B1/707 ,  H04B1/7075 ,  H04B2201/70705 ,  H04B2201/70716 ,  H04B2201/70728 ,  H04J13/00 ,  H04L1/0003 ,  H04L1/0023 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0044 ,  H04L5/0048 ,  H04L27/18 ,  H04L27/227 ,  H04L27/2602 ,  H04L27/2662 ,  H04L27/34 ,  H04L27/364 ,  H04L27/38 ,  H04L2027/004 ,  H04L2027/0061

Abstract: A transmitting apparatus includes an OFDM modulator that generates a first modulation symbol by modulating a first information signal using a first modulation scheme, a signal point of the first modulated information signal being at a first position in an in-phase quadrature-phase plane. A second modulation symbol by modulating a second information signal using the first modulation scheme, and by changing a second position at which a signal point of the modulated second information signal is arranged to a third position in the in-phase quadrature-phase plane, and an OFDM modulation signal including the first modulation symbol and the second modulation symbol, wherein the OFDM modulation signal comprises a plurality of subcarriers.

Abstract translation: 发送装置包括OFDM调制器，其通过使用第一调制方式调制第一信息信号来生成第一调制符号，第一调制信息信号的信号点处于同相正交相位平面中的第一位置。 第二调制符号，通过使用第一调制方案调制第二信息信号，并且通过改变调制的第二信息信号的信号点被布置在同相正交相位平面中的第三位置的第二位置，以及 包括第一调制符号和第二调制符号的OFDM调制信号，其中OFDM调制信号包括多个子载波。

公开(公告)号：US09143302B2

公开(公告)日：2015-09-22

申请号：US14153466

申请日：2014-01-13

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yutaka Murakami ,  Shinichiro Takabayashi ,  Masayuki Orihashi ,  Akihiko Matsuoka

IPC: H04J11/00 ,  H04L5/00 ,  H04B1/692 ,  H04L1/00 ,  H04L27/00 ,  H04W72/04

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 communication method of a base station transmits a modulation signal based on an OFDM (orthogonal frequency division multiplexing) modulation scheme to a plurality of communication terminals. The method includes forming a transmission frame on which a first subcarrier group and a second subcarrier group are arranged, and determining on a per frame basis, which subcarrier group of the first subcarrier group and the second subcarrier group is allocated to each of the plurality of communication terminals and what number of subcarriers are selected from the subcarrier group that is allocated to each of the plurality of communication terminals. The method further includes forming the transmission frame based on the determined subcarrier group and the determined number of subcarriers, transmitting the modulation signal including the transmission frame, and receiving feedback information including radio propagation condition estimation information from each of the plurality of communication terminals.

Abstract translation: 基站的通信方法将OFDM（正交频分复用）调制方式的调制信号发送到多个通信终端。 该方法包括形成其上布置有第一子载波组和第二副载波组的传输帧，并且基于每帧确定第一副载波组和第二副载波组的哪个子载波组被分配给多个 通信终端以及从分配给多个通信终端中的每一个的子载波组中选择多少副载波。 该方法还包括基于所确定的子载波组和所确定的子载波数，形成传输帧，发送包括传输帧的调制信号，以及从多个通信终端中的每一个接收包括无线传播条件估计信息的反馈信息。