CA2313817C - Modulation method for transmitter - Google Patents

Modulation method for transmitter Download PDF

Info

Publication number
CA2313817C
CA2313817C CA002313817A CA2313817A CA2313817C CA 2313817 C CA2313817 C CA 2313817C CA 002313817 A CA002313817 A CA 002313817A CA 2313817 A CA2313817 A CA 2313817A CA 2313817 C CA2313817 C CA 2313817C
Authority
CA
Canada
Prior art keywords
constellation mapping
mapping scheme
time slot
time slots
channel quality
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
CA002313817A
Other languages
English (en)
French (fr)
Other versions
CA2313817A1 (en
Inventor
Rajeev Krishnamoorthy
Xiaodong Li
Shankar Narayanaswamy
Markus Rupp
Harish Viswanathan
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.)
Nokia of America Corp
Original Assignee
Lucent Technologies Inc
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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of CA2313817A1 publication Critical patent/CA2313817A1/en
Application granted granted Critical
Publication of CA2313817C publication Critical patent/CA2313817C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/04—Modulator circuits; Transmitter circuits
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
CA002313817A 1999-07-27 2000-07-12 Modulation method for transmitter Expired - Fee Related CA2313817C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/361,430 US6490270B1 (en) 1999-07-27 1999-07-27 Modulation method for transmitter
US09/361,430 1999-07-27

Publications (2)

Publication Number Publication Date
CA2313817A1 CA2313817A1 (en) 2001-01-27
CA2313817C true CA2313817C (en) 2005-02-15

Family

ID=23422030

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002313817A Expired - Fee Related CA2313817C (en) 1999-07-27 2000-07-12 Modulation method for transmitter

Country Status (9)

Country Link
US (1) US6490270B1 (enExample)
EP (1) EP1073302B1 (enExample)
JP (1) JP2001069189A (enExample)
KR (1) KR100738823B1 (enExample)
CN (1) CN100452660C (enExample)
AU (1) AU4876600A (enExample)
BR (1) BR0002917A (enExample)
CA (1) CA2313817C (enExample)
DE (1) DE60014798T2 (enExample)

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US7215650B1 (en) 1999-08-16 2007-05-08 Viasat, Inc. Adaptive data rate control for narrowcast networks
US7143013B2 (en) * 1999-11-04 2006-11-28 Verticalband, Limited Reliable symbols as a means of improving the performance of information transmission systems
US7085691B2 (en) * 1999-11-04 2006-08-01 Verticalband, Limited Reliable symbols as a means of improving the performance of information transmission systems
US7110923B2 (en) * 1999-11-04 2006-09-19 Verticalband, Limited Fast, blind equalization techniques using reliable symbols
US6700926B1 (en) 1999-12-10 2004-03-02 Nokia Corporation Method and apparatus providing bit-to-symbol mapping for space-time codes
WO2001065703A2 (en) * 2000-02-29 2001-09-07 Inari, Inc. High data-rate powerline network system and method
US7016296B2 (en) 2000-10-16 2006-03-21 Broadcom Corporation Adaptive modulation for fixed wireless link in cable transmission system
US6853681B1 (en) 2000-11-28 2005-02-08 Telefonaktiebolaget L M Ericsson (Publ) Using different channel models for different training sequences
JP3811002B2 (ja) * 2000-12-13 2006-08-16 三菱電機株式会社 受信装置
US20020136331A1 (en) * 2001-01-24 2002-09-26 Leif Wilhelmsson Method and apparatus for performing channel estimation with a limiting receiver
US6912249B2 (en) 2001-03-15 2005-06-28 Telefonaktiebolaget L M Ericsson (Publ) Method and system for training a radio receiver
FI20010963A0 (fi) 2001-05-08 2001-05-08 Nokia Corp Adaptiivinen symbolikuvaus matkaviestinjärjestelmässä
US20030123415A1 (en) * 2001-12-31 2003-07-03 Bysted Tommy Kristensen Transport format combination indicator signalling
US6999439B2 (en) * 2002-01-31 2006-02-14 Mitsubishi Denki Kabushiki Kaisha Information transmission method, mobile communications system, base station and mobile station in which data size of identification data is reduced
US7499709B2 (en) * 2002-02-07 2009-03-03 Alcatel-Lucent Usa Inc. Method and apparatus for closed loop transmit diversity in a wireless communications system
US7116944B2 (en) * 2002-02-07 2006-10-03 Lucent Technologies Inc. Method and apparatus for feedback error detection in a wireless communications systems
AU2002329137A1 (en) * 2002-07-03 2004-01-23 Telefonaktiebolaget LM Ericsson )publ) Embedded keying
JP4353774B2 (ja) * 2002-12-04 2009-10-28 パナソニック株式会社 データ送信方法とデータ受信方法およびそれらを用いた送信装置と受信装置
CN100380831C (zh) * 2003-09-23 2008-04-09 四川大学 用于信息安全传输的数字调制解调方法
TWI271071B (en) * 2003-11-06 2007-01-11 Ind Tech Res Inst Communication method of scalable QAM and scalable QAM system
US7301958B2 (en) * 2003-11-26 2007-11-27 Intel Corporation Cycle-efficient TDM timeslot remapping for network processing engines
WO2005109705A1 (en) 2004-05-01 2005-11-17 Neocific, Inc. Methods and apparatus for communication with time-division duplexing
CN1998247B (zh) * 2004-06-30 2012-05-30 桥扬科技有限公司 用于多载波无线系统中功率控制的方法和装置
KR101015708B1 (ko) * 2004-09-14 2011-02-24 삼성전자주식회사 다중반송파 시스템을 위한 적응적 비트/전력 로딩 기법
JP4554451B2 (ja) * 2005-06-29 2010-09-29 京セラ株式会社 通信装置、通信システム、変調方法、及びプログラム
US8693430B2 (en) 2005-09-28 2014-04-08 Neocific, Inc. Method and system for multi-carrier packet communication with reduced overhead
US7948944B2 (en) * 2005-09-28 2011-05-24 Neocific, Inc. Method and system for multi-carrier packet communication with reduced overhead
US7839948B2 (en) * 2005-12-02 2010-11-23 Qualcomm Incorporated Time slicing techniques for variable data rate encoding
CN101594628B (zh) * 2008-05-27 2011-03-16 普天信息技术研究院有限公司 一种上行发送功率可变系统中的信道质量估计方法
US8588086B2 (en) * 2009-11-30 2013-11-19 Qualcomm Incorporated Reverse link data rate indication for satellite-enabled communications systems
WO2014179794A1 (en) * 2013-05-03 2014-11-06 Marvell World Trade Ltd. Beam change and smoothing recommendation in mixed mode wlan systems

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US5369637A (en) * 1991-04-03 1994-11-29 U.S. Philips Corporation Signal transmission system
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US5335356A (en) * 1991-09-05 1994-08-02 Telefonaktiebolaget L M Ericsson Adaptive resource allocation in a mobile telephone system
US6334219B1 (en) * 1994-09-26 2001-12-25 Adc Telecommunications Inc. Channel selection for a hybrid fiber coax network
US5533004A (en) * 1994-11-07 1996-07-02 Motorola, Inc. Method for providing and selecting amongst multiple data rates in a time division multiplexed system
US5701294A (en) * 1995-10-02 1997-12-23 Telefonaktiebolaget Lm Ericsson System and method for flexible coding, modulation, and time slot allocation in a radio telecommunications network
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EP0956718B1 (en) * 1996-10-09 2004-09-29 Alcatel USA Sourcing, L.P. Call management in a wireless telecommunications system
US5909469A (en) * 1997-08-29 1999-06-01 Telefonaktoebolaget Lm Ericsson Link adaptation method for links using modulation schemes that have different symbol rates

Also Published As

Publication number Publication date
JP2001069189A (ja) 2001-03-16
EP1073302A1 (en) 2001-01-31
KR20010039761A (ko) 2001-05-15
DE60014798D1 (de) 2004-11-18
BR0002917A (pt) 2001-04-03
EP1073302B1 (en) 2004-10-13
DE60014798T2 (de) 2005-06-09
CN1283004A (zh) 2001-02-07
CA2313817A1 (en) 2001-01-27
KR100738823B1 (ko) 2007-07-13
AU4876600A (en) 2001-02-01
US6490270B1 (en) 2002-12-03
CN100452660C (zh) 2009-01-14

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EEER Examination request
MKLA Lapsed

Effective date: 20180712

MKLA Lapsed

Effective date: 20180712