CN100576782C - 能改善多载波接收系统接收效率的多载波发送系统及方法 - Google Patents

能改善多载波接收系统接收效率的多载波发送系统及方法 Download PDF

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Publication number
CN100576782C
CN100576782C CN03123259A CN03123259A CN100576782C CN 100576782 C CN100576782 C CN 100576782C CN 03123259 A CN03123259 A CN 03123259A CN 03123259 A CN03123259 A CN 03123259A CN 100576782 C CN100576782 C CN 100576782C
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CN
China
Prior art keywords
information
signal
unit
sequence
synchronizing
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
CN03123259A
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English (en)
Chinese (zh)
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CN1490953A (zh
Inventor
金正振
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of CN1490953A publication Critical patent/CN1490953A/zh
Application granted granted Critical
Publication of CN100576782C publication Critical patent/CN100576782C/zh
Anticipated expiration legal-status Critical
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    • 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
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041—Arrangements at the transmitter end
    • H04L1/0042—Encoding specially adapted to other signal generation operation, e.g. in order to reduce transmit distortions, jitter, or to improve signal shape
    • 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
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
    • H04N5/40—Modulation circuits

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Television Systems (AREA)
CN03123259A 2002-10-19 2003-04-24 能改善多载波接收系统接收效率的多载波发送系统及方法 Expired - Fee Related CN100576782C (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020020064082A KR100920734B1 (ko) 2002-10-19 2002-10-19 다중반송파 수신시스템의 성능을 향상시킬 수 있는다중반송파 전송시스템 및 그 방법
KR64082/02 2002-10-19
KR64082/2002 2002-10-19

Publications (2)

Publication Number Publication Date
CN1490953A CN1490953A (zh) 2004-04-21
CN100576782C true CN100576782C (zh) 2009-12-30

Family

ID=34192038

Family Applications (1)

Application Number Title Priority Date Filing Date
CN03123259A Expired - Fee Related CN100576782C (zh) 2002-10-19 2003-04-24 能改善多载波接收系统接收效率的多载波发送系统及方法

Country Status (2)

Country Link
KR (1) KR100920734B1 (ko)
CN (1) CN100576782C (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100996417B1 (ko) * 2006-02-03 2010-11-25 삼성전자주식회사 디지털 멀티미디어 방송시스템에서 시그널링 파라미터를 송수신하는 방법 및 장치
CN101018221B (zh) * 2006-02-10 2013-05-01 中兴通讯股份有限公司 正交频分复用系统发送信号的方法及小区搜索的方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100236039B1 (ko) * 1997-06-30 1999-12-15 전주범 직교분할대역 시스템에서의 간략시간획득 추적회로
KR100859878B1 (ko) * 2002-05-30 2008-09-24 삼성전자주식회사 서비스모드에 따라 오에프디엠 심볼 당 의사잡음열정보를가변적으로 삽입할 수 있는 오에프디엠 송신기 및 이를이용한 오에프디엠 송신방법
KR100886124B1 (ko) * 2002-05-30 2009-02-27 삼성전자주식회사 서비스모드에 따라 의사잡음열의 레벨값을 가변하여오에프디엠신호에 삽입할 수 있는 오에프디엠 송신기

Also Published As

Publication number Publication date
KR20040035294A (ko) 2004-04-29
CN1490953A (zh) 2004-04-21
KR100920734B1 (ko) 2009-10-07

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Granted publication date: 20091230

Termination date: 20170424

CF01 Termination of patent right due to non-payment of annual fee