WO2009028711A1 - ダイバシティ受信装置、ダイバシティ受信方法およびデジタルテレビジョン受信装置 - Google Patents
ダイバシティ受信装置、ダイバシティ受信方法およびデジタルテレビジョン受信装置 Download PDFInfo
- Publication number
- WO2009028711A1 WO2009028711A1 PCT/JP2008/065698 JP2008065698W WO2009028711A1 WO 2009028711 A1 WO2009028711 A1 WO 2009028711A1 JP 2008065698 W JP2008065698 W JP 2008065698W WO 2009028711 A1 WO2009028711 A1 WO 2009028711A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reception device
- diversity
- diversity reception
- ratio
- unit
- Prior art date
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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving 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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0848—Joint weighting
- H04B7/0857—Joint weighting using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]
-
- 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
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
-
- 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
- H04L27/2647—Arrangements specific to the receiver only
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Radio Transmission System (AREA)
Abstract
本発明のダイバシティ受信装置10aは、OFDM変調信号をダイバシティ受信するために、第1ブランチ100a~第4ブランチ400aの4つのブランチを有する。例えば、第1ブランチ100aにおいて、直交復調部103によって検波された複素ベースバンド信号が位相差補正部104へ入力されるとともにSN比算出部105へ入力され、SN算出部105が、複素ベースバンド信号のシンボル出力の1次の計算式に基づきSN比を算出し、合成部500は、これらのSN比に応じて、復調部700による復調のための入力信号を合成する。この様にすることによって、OFDM変調信号のダイバシティ受信において、良好なSN比(またはCN比)を得て、受信結果の品質向上を図ることができる。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08828735.4A EP2200201B8 (en) | 2007-08-31 | 2008-09-01 | Diversity receiving device, diversity receiving method, and digital television receiving apparatus |
CN2008801048886A CN101790862B (zh) | 2007-08-31 | 2008-09-01 | 分集接收装置、分集接收方法和数字电视机接收装置 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-226678 | 2007-08-31 | ||
JP2007226678A JP4708400B2 (ja) | 2007-08-31 | 2007-08-31 | ダイバシティ受信装置、ダイバシティ受信方法およびデジタルテレビジョン受信装置 |
JP2007-253312 | 2007-09-28 | ||
JP2007253312A JP4551432B2 (ja) | 2007-09-28 | 2007-09-28 | ダイバシティ受信装置およびダイバシティ受信方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009028711A1 true WO2009028711A1 (ja) | 2009-03-05 |
Family
ID=40387414
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/065698 WO2009028711A1 (ja) | 2007-08-31 | 2008-09-01 | ダイバシティ受信装置、ダイバシティ受信方法およびデジタルテレビジョン受信装置 |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2200201B8 (ja) |
CN (1) | CN101790862B (ja) |
WO (1) | WO2009028711A1 (ja) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09284191A (ja) * | 1996-04-12 | 1997-10-31 | Nippon Hoso Kyokai <Nhk> | ダイバーシチ受信装置 |
JPH09312602A (ja) | 1996-05-21 | 1997-12-02 | Oki Electric Ind Co Ltd | ダイバーシティ受信回路 |
JPH10256967A (ja) * | 1997-03-13 | 1998-09-25 | Nippon Telegr & Teleph Corp <Ntt> | 検波後ダイバーシチ受信回路 |
JP2000183844A (ja) * | 1998-12-16 | 2000-06-30 | Sharp Corp | 受信機及び受信方法 |
JP2000252950A (ja) * | 1999-02-26 | 2000-09-14 | Toyota Central Res & Dev Lab Inc | マルチキャリア受信装置用同期回路及びマルチキャリア受信装置 |
JP2001230752A (ja) * | 2000-02-15 | 2001-08-24 | Mitsubishi Electric Corp | マルチキャリア無線受信装置およびマルチキャリア無線伝送装置 |
JP2003051768A (ja) | 2001-08-06 | 2003-02-21 | Nippon Hoso Kyokai <Nhk> | ダイバーシティ受信機 |
JP2006253915A (ja) | 2005-03-09 | 2006-09-21 | Megachips Lsi Solutions Inc | Ofdmダイバーシティ受信装置 |
JP2007208748A (ja) * | 2006-02-02 | 2007-08-16 | Sharp Corp | Ofdm復調装置、ofdm復調方法、プログラム及びコンピュータ読み取り可能な記録媒体 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5351274A (en) * | 1993-08-20 | 1994-09-27 | General Electric Company | Post detection selection combining diversity receivers for mobile and indoor radio channels |
US20040081131A1 (en) * | 2002-10-25 | 2004-04-29 | Walton Jay Rod | OFDM communication system with multiple OFDM symbol sizes |
-
2008
- 2008-09-01 WO PCT/JP2008/065698 patent/WO2009028711A1/ja active Application Filing
- 2008-09-01 CN CN2008801048886A patent/CN101790862B/zh not_active Expired - Fee Related
- 2008-09-01 EP EP08828735.4A patent/EP2200201B8/en not_active Not-in-force
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09284191A (ja) * | 1996-04-12 | 1997-10-31 | Nippon Hoso Kyokai <Nhk> | ダイバーシチ受信装置 |
JPH09312602A (ja) | 1996-05-21 | 1997-12-02 | Oki Electric Ind Co Ltd | ダイバーシティ受信回路 |
JPH10256967A (ja) * | 1997-03-13 | 1998-09-25 | Nippon Telegr & Teleph Corp <Ntt> | 検波後ダイバーシチ受信回路 |
JP2000183844A (ja) * | 1998-12-16 | 2000-06-30 | Sharp Corp | 受信機及び受信方法 |
JP2000252950A (ja) * | 1999-02-26 | 2000-09-14 | Toyota Central Res & Dev Lab Inc | マルチキャリア受信装置用同期回路及びマルチキャリア受信装置 |
JP2001230752A (ja) * | 2000-02-15 | 2001-08-24 | Mitsubishi Electric Corp | マルチキャリア無線受信装置およびマルチキャリア無線伝送装置 |
JP2003051768A (ja) | 2001-08-06 | 2003-02-21 | Nippon Hoso Kyokai <Nhk> | ダイバーシティ受信機 |
JP2006253915A (ja) | 2005-03-09 | 2006-09-21 | Megachips Lsi Solutions Inc | Ofdmダイバーシティ受信装置 |
JP2007208748A (ja) * | 2006-02-02 | 2007-08-16 | Sharp Corp | Ofdm復調装置、ofdm復調方法、プログラム及びコンピュータ読み取り可能な記録媒体 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2200201A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP2200201B8 (en) | 2017-08-09 |
CN101790862B (zh) | 2013-03-27 |
EP2200201A4 (en) | 2015-06-17 |
CN101790862A (zh) | 2010-07-28 |
EP2200201A1 (en) | 2010-06-23 |
EP2200201B1 (en) | 2017-01-11 |
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