EA200971089A1 - Система радиочастотных ofdm-mimo передач - Google Patents
Система радиочастотных ofdm-mimo передачInfo
- 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
Links
- 230000005540 biological transmission Effects 0.000 title abstract 6
- 239000000969 carrier Substances 0.000 abstract 1
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).
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)
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 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
2007
- 2007-05-23 GB GB0709899A patent/GB2449470B/en active Active
-
2008
- 2008-05-22 AT AT08750681T patent/ATE545249T1/de active
- 2008-05-22 EP EP08750681A patent/EP2158736B1/en active Active
- 2008-05-22 KR KR1020147017423A patent/KR101529450B1/ko active IP Right Grant
- 2008-05-22 PL PL08750681T patent/PL2158736T3/pl unknown
- 2008-05-22 RS RS20120114A patent/RS52238B/en unknown
- 2008-05-22 EA EA201200040A patent/EA020813B1/ru unknown
- 2008-05-22 KR KR1020097026800A patent/KR101462297B1/ko active IP Right Grant
- 2008-05-22 ES ES08750681T patent/ES2380412T3/es active Active
- 2008-05-22 DK DK08750681.2T patent/DK2158736T3/da active
- 2008-05-22 AU AU2008252671A patent/AU2008252671B2/en active Active
- 2008-05-22 CN CN2008800237147A patent/CN101730990B/zh active Active
- 2008-05-22 ES ES12000123T patent/ES2431029T3/es active Active
- 2008-05-22 EP EP12000123.5A patent/EP2477369B1/en active Active
- 2008-05-22 PL PL12000123T patent/PL2477369T3/pl unknown
- 2008-05-22 WO PCT/GB2008/001758 patent/WO2008142419A1/en active Application Filing
- 2008-05-22 DK DK12000123.5T patent/DK2477369T3/da active
- 2008-05-22 EA EA200971089A patent/EA016296B1/ru not_active IP Right Cessation
-
2009
- 2009-11-23 ZA ZA200908261A patent/ZA200908261B/xx unknown
-
2012
- 2012-04-05 HR HR20120300T patent/HRP20120300T1/hr unknown
Cited By (2)
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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Legal Events
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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 |