公开(公告)号：US20230147488A1

公开(公告)日：2023-05-11

申请号：US18065533

申请日：2022-12-13

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： YUTAKA MURAKAMI ,  TOMOHIRO KIMURA ,  MIKIHIRO OUCHI

IPC: H04B7/06 ,  H04B7/0452 ,  H04L1/06 ,  H04L1/00 ,  H04B7/0456

CPC classification number: H04B7/0682 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0697 ,  H04L1/0003 ,  H04L1/0618 ,  H04L27/2602

Abstract: A transmission apparatus includes M signal processors that respectively generate modulated signals directed to M reception apparatuses, M being an integer equal to or greater than 2, and an antenna section. Each signal processor modulates a first bit sequence made up of two bits to generate a first modulated signal and a second modulated signal, and modulates a second bit sequence made up of other two bits to generate a third modulated signal and a fourth modulated signal, in a case of transmitting multiple streams to a corresponding one of the M reception apparatuses. The antenna section includes a first antenna that transmits the first modulated signal and the third modulated signal and a second antenna that transmits the second modulated signal and the fourth modulated signal. At least either the signals transmitted from the first antenna or the signals transmitted from the second antenna are phase-changed signals.

公开(公告)号：US20190123792A1

公开(公告)日：2019-04-25

申请号：US16090625

申请日：2017-04-11

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： YUTAKA MURAKAMI ,  TOMOHIRO KIMURA ,  MIKIHIRO OUCHI

IPC: H04B7/0456

Abstract: A precoding process is performed on a first baseband signal and a second baseband signal to generate a first precoding signal and a second precoding signal. A pilot signal is inserted into the first precoding signal and phase change is performed on the second precoding signal. A pilot signal is inserted into the phase changed second precoding signal, and phase change is further performed on the phase-changed second precoding signal with the pilot signal inserted.

公开(公告)号：US20160315733A1

公开(公告)日：2016-10-27

申请号：US15190163

申请日：2016-06-22

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： YUTAKA MURAKAMI ,  TOMOHIRO KIMURA ,  MIKIHIRO OUCHI

IPC: H04L1/00

CPC classification number: H04L1/0041 ,  H03M13/1102 ,  H03M13/1165 ,  H03M13/255 ,  H04B7/0413 ,  H04L1/0045 ,  H04L27/18 ,  H04L27/34

Abstract: In a transmission method according to one aspect of the present disclosure, a encoder performs error correction coding on an information bit string to generate a code word. A mapper modulates a first bit string in which the number of bits is the predetermined integral multiple of (X+Y) in the code word using a first scheme, the first scheme being a set of a modulation scheme in which an X-bit bit string is mapped to generate a first complex signal and a modulation scheme in which a Y-bit bit string is mapped to generate a second complex signal, and modulates a second bit string in which the first bit string is removed from the code word using a second scheme different from the first scheme.

Abstract translation: 在根据本公开的一个方面的传输方法中，编码器对信息位串执行纠错编码以生成代码字。 映射器使用第一方案来调制位数为码字中（X + Y）的预定整数倍的第一位串，第一方案是调制方案的集合，其中X位位 字符串被映射以产生第一复数信号和其中映射Y比特位串以产生第二复数信号的调制方案，并且使用以下方式调制其中从代码字中去除第一位串的第二位串 第二种方案与第一种方案不同。

公开(公告)号：US20250080194A1

公开(公告)日：2025-03-06

申请号：US18951052

申请日：2024-11-18

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： YUTAKA MURAKAMI ,  TOMOHIRO KIMURA ,  MIKIHIRO OUCHI

IPC: H04B7/06 ,  H04B1/707 ,  H04B7/0452 ,  H04B7/0456 ,  H04L1/00 ,  H04L1/06 ,  H04L27/00 ,  H04L27/26

Abstract: A transmission apparatus includes M signal processors that respectively generate modulated signals directed to M reception apparatuses, M being an integer equal to or greater than 2, and an antenna section. Each signal processor modulates a first bit sequence made up of two bits to generate a first modulated signal and a second modulated signal, and modulates a second bit sequence made up of other two bits to generate a third modulated signal and a fourth modulated signal, in a case of transmitting multiple streams to a corresponding one of the M reception apparatuses. The antenna section includes a first antenna that transmits the first modulated signal and the third modulated signal and a second antenna that transmits the second modulated signal and the fourth modulated signal. At least either the signals transmitted from the first antenna or the signals transmitted from the second antenna are phase-changed signals.

公开(公告)号：US20190280755A1

公开(公告)日：2019-09-12

申请号：US16421198

申请日：2019-05-23

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： YUTAKA MURAKAMI ,  TOMOHIRO KIMURA ,  MIKIHIRO OUCHI

IPC: H04B7/06 ,  H04B7/0456 ,  H04L1/06 ,  H04B7/0452

Abstract: A transmission apparatus includes M signal processors that respectively generate modulated signals directed to M reception apparatuses, M being an integer equal to or greater than 2, and an antenna section. Each signal processor modulates a first bit sequence made up of two bits to generate a first modulated signal and a second modulated signal, and modulates a second bit sequence made up of other two bits to generate a third modulated signal and a fourth modulated signal, in a case of transmitting multiple streams to a corresponding one of the M reception apparatuses. The antenna section includes a first antenna that transmits the first modulated signal and the third modulated signal and a second antenna that transmits the second modulated signal and the fourth modulated signal. At least either the signals transmitted from the first antenna or the signals transmitted from the second antenna are phase-changed signals.

公开(公告)号：US20190109628A1

公开(公告)日：2019-04-11

申请号：US16203249

申请日：2018-11-28

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： YUTAKA MURAKAMI ,  TOMOHIRO KIMURA ,  MIKIHIRO OUCHI

IPC: H04B7/06 ,  H04B7/0456

CPC classification number: H04B7/0682 ,  H04B1/707 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0602 ,  H04B7/0697 ,  H04B2201/70703 ,  H04L1/0618 ,  H04L27/0008 ,  H04L27/2602 ,  H04L27/2626 ,  Y02D70/444

Abstract: A transmission apparatus includes M signal processors that respectively generate modulated signals directed to M reception apparatuses, M being an integer equal to or greater than 2, and an antenna section. Each signal processor modulates a first bit sequence made up of two bits to generate a first modulated signal and a second modulated signal, and modulates a second bit sequence made up of other two bits to generate a third modulated signal and a fourth modulated signal, in a case of transmitting multiple streams to a corresponding one of the M reception apparatuses. The antenna section includes a first antenna that transmits the first modulated signal and the third modulated signal and a second antenna that transmits the second modulated signal and the fourth modulated signal. At least either the signals transmitted from the first antenna or the signals transmitted from the second antenna are phase-changed signals.

公开(公告)号：US20190052323A1

公开(公告)日：2019-02-14

申请号：US16164265

申请日：2018-10-18

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： YUTAKA MURAKAMI ,  TOMOHIRO KIMURA ,  MIKIHIRO OUCHI

IPC: H04B7/0456 ,  H04B7/0413

CPC classification number: H04B7/0456 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0628 ,  H04B7/0671

Abstract: Provided are M signal processors that respectively generate modulated signals for M reception apparatuses (where M is an integer equal to 2 or greater), a multiplexing signal processor, and N antenna sections (where N is an integer equal to 1 or greater). When transmitting multiple streams, each of the M signal processors generates two mapped signals, generates first and second precoded signals by precoding the two mapped signals, periodically changes the phase of signal points in the IQ plane with respect to the second precoded signal, outputs the phase-changed signal, and outputs the first precoded signal and the phase-changed second precoded signal as two modulated signals. When transmitting a single stream, each of the M signal processor outputs a single modulated signal. The multiplexing signal processor multiplexes the modulated signals output from the M signal processors, and generates N multiplexed signals. The N antenna sections respectively transmit the N multiplexed signals.

公开(公告)号：US20170048092A1

公开(公告)日：2017-02-16

申请号：US15295162

申请日：2016-10-17

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： YUTAKA MURAKAMI ,  TOMOHIRO KIMURA ,  MIKIHIRO OUCHI

IPC: H04L27/26 ,  H04J11/00

CPC classification number: H04L27/2601 ,  H04B7/0413 ,  H04B7/10 ,  H04J11/00 ,  H04L5/0053 ,  H04L5/0094 ,  H04L27/2602

Abstract: A transmitting apparatus according to one aspect of the present disclosure transmits a plurality of first transmission data and a plurality of second transmission data by using an OFDM (Orthogonal Frequency-Division Multiplexing) method. The transmitting apparatus includes frame configuring circuitry, which in operation, generates a frame including a first period in which a preamble is transmitted, a second period in which the plurality of first transmission data is multiplexed by a time division multiplexing method and is transmitted, and a third period in which the plurality of second transmission data is multiplexed by a frequency division multiplexing method and is transmitted; and transmitting circuitry that transmits the frame.

Abstract translation: 根据本公开的一个方面的发送装置通过使用OFDM（正交频分复用）方法来发送多个第一发送数据和多个第二发送数据。 发送装置包括帧配置电路，其在运行中产生包括其中发送前导码的第一周期的帧，通过时分多路复用方式复用多个第一发送数据并发送的第二周期，以及 第三时段，其中所述多个第二发送数据通过频分复用方法被复用并被发送; 以及发送该帧的发送电路。

公开(公告)号：US20160337012A1

公开(公告)日：2016-11-17

申请号：US15222934

申请日：2016-07-28

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： TOMOHIRO KIMURA ,  YUTAKA MURAKAMI ,  MIKIHIRO OUCHI

IPC: H04B7/04 ,  H04B7/08 ,  H04N21/2365 ,  H04W16/28 ,  H04N21/426 ,  H04B7/06 ,  H04W4/06

CPC classification number: H04B7/0413 ,  H04B1/16 ,  H04B7/0404 ,  H04B7/0697 ,  H04B7/0874 ,  H04B7/10 ,  H04N21/2365 ,  H04N21/42615 ,  H04N21/4263 ,  H04W4/06 ,  H04W16/26 ,  H04W16/28 ,  H04W76/40

Abstract: By a transmission method according to one aspect of the present disclosure, in a broadcasting system that generates a first broadcasting signal and a second broadcasting signal by performing multi-antenna encoding on program data, and wirelessly transmits a first broadcasting signal and a second broadcasting signal, a first transmit station transmits the first broadcasting signal, a second transmit station transmits the second broadcasting signal, the first transmit station and the second transmit station transmit the first broadcasting signal and the second broadcasting signal to an overlapping area at an identical time using an overlapping frequency band, polarized wave transmitted from the first transmit station differs from polarized wave transmitted from the second transmit station, and arrangement of the first transmit station differs from arrangement of the second transmit station.

Abstract translation: 通过根据本公开的一个方面的传输方法，在通过对节目数据执行多天线编码来生成第一广播信号和第二广播信号的广播系统中，并且无线地发送第一广播信号和第二广播信号 第一发射站发送第一广播信号，第二发射台发送第二广播信号，第一发射台和第二发射台在相同的时间使用相同的时间将第一广播信号和第二广播信号发射到重叠区域， 重叠频带，从第一发射台发送的极化波不同于从第二发射台发送的极化波，第一发射台的布置与第二发射台的布置不同。

公开(公告)号：US20160233941A1

公开(公告)日：2016-08-11

申请号：US15134014

申请日：2016-04-20

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： YUTAKA MURAKAMI ,  TOMOHIRO KIMURA ,  MIKIHIRO OUCHI

IPC: H04B7/06

CPC classification number: H04L27/2604 ,  H04B7/0413 ,  H04B7/06 ,  H04B7/0682 ,  H04B7/0697 ,  H04B7/08 ,  H04L1/005 ,  H04L1/0071 ,  H04L27/3405 ,  H04L27/3416 ,  H04L27/36 ,  H04L27/38

Abstract: A transmission method includes mapping processing, phase change processing, and transmission processing. In the mapping processing, a plurality of first modulation signals and a plurality of second modulation signals are generated using a first mapping scheme, and a plurality of third modulation signals and a plurality of fourth modulation signals are generated using a second mapping scheme. In the phase change processing, a phase change is performed on the plurality of second modulation signals and the plurality of fourth modulation signals using all N kinds of phases. In the transmission processing, the first modulation signals and the second modulation signals are respectively transmitted at a same frequency and a same time from different antennas, and the third modulation signals and the fourth modulation signals are respectively transmitted at a same frequency and a same time from the different antennas.

Abstract translation: 传输方法包括映射处理，相变处理和传输处理。 在映射处理中，使用第一映射方式生成多个第一调制信号和多个第二调制信号，并且使用第二映射方案生成多个第三调制信号和多个第四调制信号。 在相变处理中，使用全部N种相位对多个第二调制信号和多个第四调制信号进行相位变化。 在发送处理中，第一调制信号和第二调制信号分别以相同的频率和相同的时间从不同的天线发送，并且第三调制信号和第四调制信号分别以相同的频率和相同的时间发送 从不同的天线。