公开(公告)号：US10771132B2

公开(公告)日：2020-09-08

申请号：US15549221

申请日：2016-02-09

Applicant: NIPPON HOSO KYOKAI ,  NHK Engineering System, Inc.

Inventor： Shingo Asakura ,  Madoka Honda ,  Kenichi Murayama ,  Takuya Shitomi ,  Susumu Saito ,  Yoshikazu Narikiyo ,  Hiroaki Miyasaka ,  Akihiko Satou ,  Tomoaki Takeuchi ,  Kenichi Tsuchida ,  Masahiro Okano ,  Masayuki Takada ,  Kazuhiko Shibuya

IPC: H04B7/0456 ,  H04L5/00 ,  H04L9/08 ,  H04L5/02

Abstract: Disclosed is a MIMO system including a transmitter and a receiver, in which an overall BER characteristic is improved. The transmitter (1) maps data, distributed among transmit antennas, onto an IQ plane to generate carrier symbols, and then, applies an inter-polarization interleave processing in a time direction to the carrier symbols between the transmit antennas, to generate OFDM signals. Receiving the OFDM signals, the receiver (2) demodulates the OFDM signals to generate complex baseband signals, and after that, applies a first deinterleave processing in a time direction to the complex baseband signals to generate time deinterleaved data. Further, the receiver (2) applies a MIMO separation processing to the time deinterleaved data to generate a plurality of sets of MIMO separated data and applies a second deinterleave processing between the receive antennas to the plurality of sets of MIMO separated data, so as to generate carrier symbols.

公开(公告)号：US10009078B2

公开(公告)日：2018-06-26

申请号：US15549550

申请日：2016-02-09

Applicant: NIPPON HOSO KYOKAI ,  NHK Engineering System, Inc.

Inventor： Shingo Asakura ,  Madoka Honda ,  Kenichi Murayama ,  Takuya Shitomi ,  Susumu Saito ,  Yoshikazu Narikiyo ,  Hiroaki Miyasaka ,  Akihiko Satou ,  Tomoaki Takeuchi ,  Kenichi Tsuchida ,  Masahiro Okano ,  Masayuki Takada ,  Kazuhiko Shibuya

IPC: H04L27/10 ,  H04B7/04 ,  H04L5/00 ,  H04B7/06

CPC classification number: H04B7/0469 ,  G01S7/295 ,  H04B7/0697 ,  H04L5/0016 ,  H04L5/023

Abstract: Disclosed is a MIMO system including a transmitter and a receiver, in which an overall BER characteristic is improved. The transmitter (1) maps data, distributed among transmit antennas, onto an IQ plane to generate carrier symbols, and then, applies an inter-polarization interleave processing in a time direction to the carrier symbols between the transmit antennas, to generate OFDM signals. Receiving the OFDM signals, the receiver (2) demodulates the OFDM signals to generate complex baseband signals, and after that, applies a first deinterleave processing in a time direction to the complex baseband signals to generate time deinterleaved data. Further, the receiver (2) applies a MIMO separation processing to the time deinterleaved data to generate a plurality of sets of MIMO separated data and applies a second deinterleave processing between the receive antennas to the plurality of sets of MIMO separated data, so as to generate carrier symbols.

公开(公告)号：US20140321575A1

公开(公告)日：2014-10-30

申请号：US14358980

申请日：2012-11-16

Applicant: NIPPON HOSO KYOKAI

Inventor： Shingo Asakura ,  Kenichi Murayama ,  Makoto Taguchi ,  Takuya Shitomi ,  Kazuhiko Shibuya

IPC: H04B7/06 ,  H04L27/26 ,  H04B7/04

CPC classification number: H04B7/0697 ,  H03M13/1165 ,  H03M13/152 ,  H03M13/2906 ,  H04B7/0413 ,  H04B7/068 ,  H04B7/0848 ,  H04B7/10 ,  H04L1/0071 ,  H04L1/06 ,  H04L27/2626 ,  H04L2001/0093

Abstract: In a MIMO system performing MIMO transmission using a plurality of antennas, BER characteristics are improved. A transmission device includes a mapping unit that maps a transmission signal onto the IQ plane to generate carrier-modulated carrier symbols, a frequency/transmit antenna interleaving unit (frequency/polarized wave interleaving unit) that interleaves the carrier symbols in the frequency domain and between transmit antennas to generate interleaved data for each transmit antenna, and an output processing unit that constructs an OFDM frame for the interleaved data for each transmit antenna and transmits an OFDM signal via the transmit antennas.

Abstract translation: 在使用多个天线执行MIMO传输的MIMO系统中，BER特性得到改善。 传输设备包括映射单元，其将传输信号映射到IQ平面上以生成载波调制的载波符号;频率/发射天线交织单元（频率/偏振波交织单元），其对频域中的载波符号进行交织; 发送天线以产生用于每个发射天线的交织数据，以及输出处理单元，其针对每个发射天线构建用于交织数据的OFDM帧，并且经由发射天线发送OFDM信号。