CN101569152B - Qam解调 - Google Patents

Qam解调 Download PDF

Info

Publication number
CN101569152B
CN101569152B CN200780047575.7A CN200780047575A CN101569152B CN 101569152 B CN101569152 B CN 101569152B CN 200780047575 A CN200780047575 A CN 200780047575A CN 101569152 B CN101569152 B CN 101569152B
Authority
CN
China
Prior art keywords
symbols
signal
qam
data
information
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN200780047575.7A
Other languages
English (en)
Chinese (zh)
Other versions
CN101569152A (zh
Inventor
新华·王
妮可蕾·韦伯特在弗
施坎德·赛特赫施
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lenovo Innovations Co ltd Hong Kong
Original Assignee
Lenovo Innovations Co ltd Hong Kong
NEC Corp
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 AU2006907293A external-priority patent/AU2006907293A0/en
Application filed by Lenovo Innovations Co ltd Hong Kong, NEC Corp filed Critical Lenovo Innovations Co ltd Hong Kong
Publication of CN101569152A publication Critical patent/CN101569152A/zh
Application granted granted Critical
Publication of CN101569152B publication Critical patent/CN101569152B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3809—Amplitude regulation 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
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03292—Arrangements for operating in conjunction with other apparatus with channel estimation circuitry

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
CN200780047575.7A 2006-12-22 2007-12-12 Qam解调 Expired - Fee Related CN101569152B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU2006907293 2006-12-22
AU2006907293A AU2006907293A0 (en) 2006-12-22 QAM demodulation
PCT/JP2007/074347 WO2008078613A1 (en) 2006-12-22 2007-12-12 Qam demodulation

Publications (2)

Publication Number Publication Date
CN101569152A CN101569152A (zh) 2009-10-28
CN101569152B true CN101569152B (zh) 2015-08-26

Family

ID=39562406

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200780047575.7A Expired - Fee Related CN101569152B (zh) 2006-12-22 2007-12-12 Qam解调

Country Status (5)

Country Link
US (1) US8284869B2 (enExample)
EP (1) EP2119167A4 (enExample)
JP (1) JP5418835B2 (enExample)
CN (1) CN101569152B (enExample)
WO (1) WO2008078613A1 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101902429B (zh) * 2009-05-31 2014-03-12 中兴通讯股份有限公司南京分公司 手机电视业务中正交振幅调制的软解调方法及装置
US9453091B2 (en) 2010-03-17 2016-09-27 Nippon Shokubai Co., Ltd. Method of producing water absorbent resin

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1392691A (zh) * 2002-08-01 2003-01-22 上海交通大学 模拟正交调制失衡补偿方法
CN1404309A (zh) * 2002-10-24 2003-03-19 上海交通大学 正交频分复用系统的突发信号检测和自动增益控制方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001045084A (ja) * 1999-05-24 2001-02-16 Ricoh Co Ltd 検波方式及び検波回路
JP4362954B2 (ja) * 2000-07-11 2009-11-11 ソニー株式会社 復調装置及び復調方法
JP2003046588A (ja) * 2001-07-27 2003-02-14 Fujitsu General Ltd 多値ｑａｍ復調方法および装置
JP3985644B2 (ja) * 2002-09-20 2007-10-03 株式会社富士通ゼネラル 多値ｑａｍ復調方法および装置
AU2002952566A0 (en) * 2002-11-07 2002-11-21 Dspace Pty Ltd Pilot symbol patterns in communication systems
JP3994870B2 (ja) * 2002-12-12 2007-10-24 日本電気株式会社 多値ｑａｍを用いた無線装置及びしきい値推定方法
US7342974B2 (en) * 2003-03-20 2008-03-11 Silicon Integrated Systems Corp. Channel estimation in OFDM systems
GB2412552A (en) * 2004-03-26 2005-09-28 Sony Uk Ltd Receiver

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1392691A (zh) * 2002-08-01 2003-01-22 上海交通大学 模拟正交调制失衡补偿方法
CN1404309A (zh) * 2002-10-24 2003-03-19 上海交通大学 正交频分复用系统的突发信号检测和自动增益控制方法

Also Published As

Publication number Publication date
EP2119167A4 (en) 2017-03-01
JP2010514230A (ja) 2010-04-30
US8284869B2 (en) 2012-10-09
JP5418835B2 (ja) 2014-02-19
WO2008078613A1 (en) 2008-07-03
CN101569152A (zh) 2009-10-28
US20100014612A1 (en) 2010-01-21
EP2119167A1 (en) 2009-11-18

Similar Documents

Publication Publication Date Title
JP5105448B2 (ja) Ｏｆｄｍ受信機におけるチャネル推定及び等化
CN101714966B (zh) 接收装置和接收方法
US20040218519A1 (en) Apparatus and method for estimation of channel state information in OFDM receivers
CN101669312B (zh) Ofdm接收装置、ofdm接收方法、ofdm接收电路及集成电路
CN101778067B (zh) 基于物理层前导和导频的信道均衡方法及系统
US8660200B2 (en) Dual-pass joint channel estimation and data demodulation for OFDM systems
CN101199173A (zh) 具有基于csi的llr度量的ofdm接收机
CN102664850A (zh) 无线局域网多载波模式的低复杂度信道降噪方法及其装置
JP2000013353A (ja) Ｏｆｄｍ信号復調装置
KR20010042709A (ko) 멀티-캐리어 복조 시스템내 에코 위상 오프셋 정정
CN101138150A (zh) 基于先前、当前和/或未来的自相关矩阵估计执行块均衡的无线通信装置及相关方法
KR20180052003A (ko) Ofdm 시스템에서 단일 탭 등화기를 이용한 부반송파의 왜곡 보상 방법 및 그를 위한 장치
JP3594828B2 (ja) マルチキャリア変調信号復調器
JP4272665B2 (ja) Ｏｆｄｍ伝送システムのチャネルを推定する装置、方法、及びコンピュータプログラム
US20100074346A1 (en) Channel estimation in ofdm receivers
JP4215084B2 (ja) 等化器及び等化方法
CN101569152B (zh) Qam解调
CN104202282A (zh) 一种基于相位补偿的分布式信道估计方法及系统
WO2011065878A1 (en) Bit soft value normalization
JP4362954B2 (ja) 復調装置及び復調方法
JP4352035B2 (ja) Ｏｆｄｍ復調装置、方法およびプログラム
JP2004072469A (ja) 伝搬路推定を行うｏｆｄｍ受信装置
JP2004159084A (ja) 伝搬路推定を行うｏｆｄｍ受信装置
KR20130070338A (ko) Ｏｆｄｍ 시스템의 상호상관 기반 채널 추정 방법 및 그 장치
JP5347720B2 (ja) 復調回路、復調方法、及び受信システム

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
ASS Succession or assignment of patent right

Owner name: LENOVO INNOVATION CO., LTD. (HONGKONG)

Free format text: FORMER OWNER: NEC CORP.

Effective date: 20141125

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; TO: HONG KONG, CHINA

TA01 Transfer of patent application right

Effective date of registration: 20141125

Address after: Hongkong, China

Applicant after: LENOVO INNOVATIONS Co.,Ltd.(HONG KONG)

Address before: Tokyo, Japan

Applicant before: NEC Corp.

C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150826

Termination date: 20171212