EA200971089A1 - Система радиочастотных ofdm-mimo передач - Google Patents

Система радиочастотных ofdm-mimo передач

Info

Publication number
EA200971089A1
EA200971089A1 EA200971089A EA200971089A EA200971089A1 EA 200971089 A1 EA200971089 A1 EA 200971089A1 EA 200971089 A EA200971089 A EA 200971089A EA 200971089 A EA200971089 A EA 200971089A EA 200971089 A1 EA200971089 A1 EA 200971089A1
Authority
EA
Eurasian Patent Office
Prior art keywords
inverted
pilot signals
phase
pilot
transmissions
Prior art date
Application number
EA200971089A
Other languages
English (en)
Other versions
EA016296B1 (ru
Inventor
Оливер Пол Хэффенден
Кристофер Райан Ноукс
Джонатан Хайтон Стотт
Original Assignee
Бритиш Бродкастинг Корпорейшн
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Бритиш Бродкастинг Корпорейшн filed Critical Бритиш Бродкастинг Корпорейшн
Publication of EA200971089A1 publication Critical patent/EA200971089A1/ru
Publication of EA016296B1 publication Critical patent/EA016296B1/ru

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H04L1/0625—Transmitter arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Radio Transmission System (AREA)
  • Transmitters (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Система радиочастотных OFDM-MIMO передач принимает форму системы DVB-T, которая модифицирована таким образом, что фазы выбранных одних из передач пилот-сигналов, в частности, рассеянных пилот-сигналов, выбирают или изменяют в передатчиках так, что некоторые из соответствующих передач пилот-сигналов от двух (или больше) каскадов передатчиков MIMO имеют одну и ту же фазу, а другие из передач имеют относительно инвертированную фазу. В приемнике принимаемые пилот-сигналы (30) извлекают и объединяют так, чтобы получать индикацию относительно характеристик канала передач. Имеется три усовершенствования: i) любые непрерывные пилот-сигналы на той же несущей, что и инвертированные рассеянные пилот-сигналы, также являются инвертированными по фазе (1), ii) эти рассеянные пилот-сигналы на чередующихся несущих пилот-сигналов являются инвертированными по фазе, даже если это означает, что данный символ имеет некоторые инвертированные и некоторые неинвертированные, и iii) в приемнике неинвертированные (34) и инвертированные пилот-сигналы (36) разделяют, интерполируют по частоте и времени (38, 40), а затем суммируют и вычитают (42, 44).
EA200971089A 2007-05-23 2008-05-22 Система радиочастотных ofdm-mimo передач EA016296B1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0709899A GB2449470B (en) 2007-05-23 2007-05-23 OFDM-MIMO radio frequency transmission system
PCT/GB2008/001758 WO2008142419A1 (en) 2007-05-23 2008-05-22 Ofdm-mimo radio frequency transmission system

Publications (2)

Publication Number Publication Date
EA200971089A1 true EA200971089A1 (ru) 2010-06-30
EA016296B1 EA016296B1 (ru) 2012-03-30

Family

ID=38265230

Family Applications (2)

Application Number Title Priority Date Filing Date
EA201200040A EA020813B1 (ru) 2007-05-23 2008-05-22 Система радиочастотных ofdm-mimo передач
EA200971089A EA016296B1 (ru) 2007-05-23 2008-05-22 Система радиочастотных ofdm-mimo передач

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EA201200040A EA020813B1 (ru) 2007-05-23 2008-05-22 Система радиочастотных ofdm-mimo передач

Country Status (14)

Country Link
EP (2) EP2158736B1 (ru)
KR (2) KR101529450B1 (ru)
CN (1) CN101730990B (ru)
AT (1) ATE545249T1 (ru)
AU (1) AU2008252671B2 (ru)
DK (2) DK2158736T3 (ru)
EA (2) EA020813B1 (ru)
ES (2) ES2380412T3 (ru)
GB (1) GB2449470B (ru)
HR (1) HRP20120300T1 (ru)
PL (2) PL2158736T3 (ru)
RS (1) RS52238B (ru)
WO (1) WO2008142419A1 (ru)
ZA (1) ZA200908261B (ru)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014088465A2 (ru) * 2012-12-04 2014-06-12 Popik Pavel Ivanovich Устройство формирования, передачи и приема частотно-временной матрицы шумоподобного сигнала

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CN101689912B (zh) * 2007-06-22 2013-03-27 松下电器产业株式会社 发送装置、接收装置及ofdm传输方法
JP5278173B2 (ja) * 2009-06-04 2013-09-04 ソニー株式会社 受信装置および方法、プログラム、並びに受信システム
JP5392554B2 (ja) * 2009-07-24 2014-01-22 ソニー株式会社 受信装置及び方法、プログラム、並びに受信システム
JP5267874B2 (ja) * 2009-07-24 2013-08-21 ソニー株式会社 信号処理装置、及び、信号処理方法
EP2346224A1 (en) 2010-01-13 2011-07-20 Panasonic Corporation Pilot Patterns for OFDM Systems with Four Transmit Antennas
GB2482122B (en) * 2010-07-19 2014-02-19 Intellectual Ventures Holding 81 Llc Communication unit and pilot method for time varying channels
US9484993B2 (en) 2010-12-14 2016-11-01 Lg Electronics Inc. Broadcast signal transmitter/receiver and broadcast signal transmitting/receiving method
CN102148667B (zh) * 2010-12-15 2013-07-03 上海交通大学 用于单频网信号的收发方法及其实现装置
JP2012227848A (ja) * 2011-04-22 2012-11-15 Sony Corp 受信装置、受信方法、プログラム、および受信システム
US8879472B2 (en) * 2011-04-24 2014-11-04 Broadcom Corporation Long training field (LTF) for use within single user, multiple user, multiple access, and/or MIMO wireless communications
KR101273358B1 (ko) * 2011-05-31 2013-06-12 한국항공대학교산학협력단 통신 시스템에서 차세대 지상파 디지털 멀티미디어 신호 송수신 방법 및 장치
CN103237182A (zh) * 2013-05-08 2013-08-07 无锡北斗星通信息科技有限公司 Mimo型的dvb-t发射机
CN103281109B (zh) * 2013-06-08 2015-12-09 海安欣凯富机械科技有限公司 多输入多输出mimo型收发环境测试装置
CN107251589B (zh) * 2015-03-09 2020-11-13 Lg电子株式会社 广播信号发送装置、广播信号接收装置、广播信号发送方法和广播信号接收方法
JP7324094B2 (ja) * 2019-09-12 2023-08-09 日本放送協会 測定装置及びプログラム

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US5345599A (en) 1992-02-21 1994-09-06 The Board Of Trustees Of The Leland Stanford Junior University Increasing capacity in wireless broadcast systems using distributed transmission/directional reception (DTDR)
DE69610650T2 (de) 1995-01-31 2001-05-03 Mbt Holding Ag Zuerich Zementdispergiermittel
US6473467B1 (en) 2000-03-22 2002-10-29 Qualcomm Incorporated Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system
EP2262157A3 (en) * 2000-07-05 2011-03-23 Sony Deutschland Gmbh Pilot pattern design for a STTD scheme in an OFDM system
GB2370952B (en) * 2001-01-05 2003-04-09 British Broadcasting Corp Improvements in channel state measurement and in discriminating digital values from a received signal suitable for use with OFDM signals
US7248559B2 (en) * 2001-10-17 2007-07-24 Nortel Networks Limited Scattered pilot pattern and channel estimation method for MIMO-OFDM systems
KR20030094778A (ko) * 2002-06-07 2003-12-18 삼성전자주식회사 오에프디엠 신호에 파일럿신호를 삽입하는오에프디엠송신기 및 그의 파일럿신호 삽입방법
EA016627B1 (ru) 2005-10-31 2012-06-29 Шарп Кабусики Кайся Беспроводное передающее устройство
GB2436414A (en) * 2006-02-20 2007-09-26 British Broadcasting Corp OFDM - MIMO radio frequency transmission system
US8619746B2 (en) * 2006-10-10 2013-12-31 Qualcomm Incorporated Channel estimation for multi-carrier communication

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014088465A2 (ru) * 2012-12-04 2014-06-12 Popik Pavel Ivanovich Устройство формирования, передачи и приема частотно-временной матрицы шумоподобного сигнала
WO2014088465A3 (ru) * 2012-12-04 2014-07-31 Popik Pavel Ivanovich Устройство формирования, передачи и приема частотно-временной матрицы шумоподобного сигнала

Also Published As

Publication number Publication date
EA201200040A1 (ru) 2012-05-30
EP2158736A1 (en) 2010-03-03
PL2158736T3 (pl) 2012-07-31
EA020813B1 (ru) 2015-01-30
CN101730990B (zh) 2013-08-21
ES2380412T3 (es) 2012-05-11
ZA200908261B (en) 2010-08-25
GB0709899D0 (en) 2007-07-04
PL2477369T3 (pl) 2014-01-31
DK2158736T3 (da) 2012-05-29
AU2008252671B2 (en) 2013-03-28
AU2008252671A1 (en) 2008-11-27
ATE545249T1 (de) 2012-02-15
KR20100021623A (ko) 2010-02-25
GB2449470A (en) 2008-11-26
RS52238B (en) 2012-10-31
EP2477369B1 (en) 2013-08-28
EP2477369A1 (en) 2012-07-18
GB2449470B (en) 2011-06-29
HRP20120300T1 (hr) 2012-04-30
ES2431029T3 (es) 2013-11-22
KR20140101818A (ko) 2014-08-20
KR101529450B1 (ko) 2015-06-18
DK2477369T3 (da) 2013-11-25
CN101730990A (zh) 2010-06-09
EP2158736B1 (en) 2012-02-08
WO2008142419A9 (en) 2009-02-19
EA016296B1 (ru) 2012-03-30
WO2008142419A1 (en) 2008-11-27
KR101462297B1 (ko) 2014-11-14

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MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AM AZ BY KZ KG MD TJ TM