DE602007000199D1 - System und Verfahren zum ASK-OFDM-Senden und -Empfangen - Google Patents

System und Verfahren zum ASK-OFDM-Senden und -Empfangen

Info

Publication number
DE602007000199D1
DE602007000199D1 DE602007000199T DE602007000199T DE602007000199D1 DE 602007000199 D1 DE602007000199 D1 DE 602007000199D1 DE 602007000199 T DE602007000199 T DE 602007000199T DE 602007000199 T DE602007000199 T DE 602007000199T DE 602007000199 D1 DE602007000199 D1 DE 602007000199D1
Authority
DE
Germany
Prior art keywords
ask
ofdm
symbol
reception
signal
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.)
Active
Application number
DE602007000199T
Other languages
English (en)
Inventor
Shouxing Qu
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.)
BlackBerry Ltd
Original Assignee
Research in Motion Ltd
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 Research in Motion Ltd filed Critical Research in Motion Ltd
Publication of DE602007000199D1 publication Critical patent/DE602007000199D1/de
Active 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
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • 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
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/06—Demodulator circuits; Receiver circuits
    • 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
    • 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
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
    • 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
    • H04L27/2649—Demodulators
    • H04L27/26524—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Circuits Of Receivers In General (AREA)
  • Radar Systems Or Details Thereof (AREA)
DE602007000199T 2006-02-13 2007-02-13 System und Verfahren zum ASK-OFDM-Senden und -Empfangen Active DE602007000199D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77257406P 2006-02-13 2006-02-13

Publications (1)

Publication Number Publication Date
DE602007000199D1 true DE602007000199D1 (de) 2008-12-11

Family

ID=37963721

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602007000199T Active DE602007000199D1 (de) 2006-02-13 2007-02-13 System und Verfahren zum ASK-OFDM-Senden und -Empfangen

Country Status (5)

Country Link
US (2) US8406318B2 (de)
EP (1) EP1819121B1 (de)
AT (1) ATE413050T1 (de)
CA (1) CA2578464C (de)
DE (1) DE602007000199D1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100826529B1 (ko) * 2006-09-29 2008-04-30 한국전자통신연구원 다수의 송수신 안테나를 갖는 직교주파수 분할 다중 접속시스템에서 효율적인 신호 수신 장치 및 방법
WO2008054322A2 (en) * 2006-11-02 2008-05-08 Telefonaktiebolaget Lm Ericsson (Publ) Cyclically shifting a signal in frequency and time domain
US20090135922A1 (en) * 2007-11-28 2009-05-28 Chang Yong Kang Power savings in ofdm-based wireless communication
US9806926B2 (en) * 2013-11-04 2017-10-31 Samsung Electronics Co., Ltd. Multistage beamforming of multiple-antenna communication system
CN110166399A (zh) * 2019-06-17 2019-08-23 桂林电子科技大学 一种基于分数阶c变换的多载波系统抗衰落的方法
CN116266806A (zh) * 2021-12-16 2023-06-20 华为技术有限公司 一种通信方法及装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5317596A (en) * 1992-12-01 1994-05-31 The Board Of Trustees Of The Leland Stanford, Junior University Method and apparatus for echo cancellation with discrete multitone modulation
DE19857821A1 (de) * 1998-12-15 2000-06-29 Siemens Ag Verfahren und Kommunikationsanordnung zur Übermittlung von Informationen mit Hilfe eines Multiträgerverfahrens
US20030227867A1 (en) * 2002-06-07 2003-12-11 Fuqin Xiong M-ary ask OFDM
TWI257794B (en) * 2003-01-24 2006-07-01 Ind Tech Res Inst System and method of protecting and transmitting side information for multicarrier communication systems with reduced peak-to-average power ratio
US7103106B2 (en) * 2003-06-16 2006-09-05 Motorola, Inc. System and method for generating a modified IOTA pulse for reducing adjacent channel interference (ACI) in an isotropic orthogonal transfer algorithm (IOTA) orthogonal frequency division multiplexing (OFDM) system
US8484272B2 (en) * 2004-08-20 2013-07-09 Qualcomm Incorporated Unified pulse shaping for multi-carrier and single-carrier waveforms
US7382717B2 (en) * 2004-09-30 2008-06-03 Motorola, Inc. Method for generating better than root raised cosine orthogonal frequency division multiplexing (BTRRC OFDM)

Also Published As

Publication number Publication date
EP1819121B1 (de) 2008-10-29
CA2578464A1 (en) 2007-08-13
CA2578464C (en) 2011-08-30
US8842759B2 (en) 2014-09-23
US20070189405A1 (en) 2007-08-16
ATE413050T1 (de) 2008-11-15
US20130148764A1 (en) 2013-06-13
EP1819121A1 (de) 2007-08-15
US8406318B2 (en) 2013-03-26

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Legal Events

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8328 Change in the person/name/address of the agent

Representative=s name: MERH-IP, 80336 MUENCHEN

8364 No opposition during term of opposition