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 PDF

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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
Application number
PCT/JP2008/065698
Other languages
English (en)
French (fr)
Inventor
Takeshi Chinda
Kazuo Takayama
Hidenori Gohhara
Kohzoh Nishiwaki
Takumi Yoshimoto
Original Assignee
Fujitsu Ten Limited
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
Priority claimed from JP2007226678A external-priority patent/JP4708400B2/ja
Priority claimed from JP2007253312A external-priority patent/JP4551432B2/ja
Application filed by Fujitsu Ten Limited filed Critical Fujitsu Ten Limited
Priority to CN2008801048886A priority Critical patent/CN101790862B/zh
Priority to EP08828735.4A priority patent/EP2200201B8/en
Publication of WO2009028711A1 publication Critical patent/WO2009028711A1/ja

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。
PCT/JP2008/065698 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 WO2009028711A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
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
EP08828735.4A EP2200201B8 (en) 2007-08-31 2008-09-01 Diversity receiving device, diversity receiving method, and digital television receiving apparatus

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
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
JP2007-253312 2007-09-28

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (9)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Title
See also references of EP2200201A4 *

Also Published As

Publication number Publication date
EP2200201B8 (en) 2017-08-09
CN101790862A (zh) 2010-07-28
EP2200201B1 (en) 2017-01-11
EP2200201A1 (en) 2010-06-23
EP2200201A4 (en) 2015-06-17
CN101790862B (zh) 2013-03-27

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