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MX2016002319A - Modo de interferencia de canal adyacente bajo para un sistema de television digital. - Google Patents

Modo de interferencia de canal adyacente bajo para un sistema de television digital.

Info

Publication number
MX2016002319A
MX2016002319A MX2016002319A MX2016002319A MX2016002319A MX 2016002319 A MX2016002319 A MX 2016002319A MX 2016002319 A MX2016002319 A MX 2016002319A MX 2016002319 A MX2016002319 A MX 2016002319A MX 2016002319 A MX2016002319 A MX 2016002319A
Authority
MX
Mexico
Prior art keywords
adjacent channel
channel interference
digital television
television system
interference mode
Prior art date
Application number
MX2016002319A
Other languages
English (en)
Inventor
Sidney Stewart John
Ward Muterspaugh Max
Original Assignee
Thomson Licensing
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 Thomson Licensing filed Critical Thomson Licensing
Publication of MX2016002319A publication Critical patent/MX2016002319A/es

Links

Classifications

    • 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
    • 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
    • H04L25/03821—Inter-carrier interference cancellation [ICI]
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0066—Requirements on out-of-channel emissions

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Transmitters (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Se proporcionan métodos y aparatos con una solución para la interferencia de canal adyacente cuando el sistema de modulación de múltiples portadores (por ejemplo, OFDM) reemplaza un sistema de modulación heredado y co-existe con él por un período de tiempo. La interferencia de canal adyacente puede reducirse al bloquear (ajustar en 0) y no usar ciertos de los portadores en el borde del espectro durante el período de transición. Esto reduce efectivamente el ancho de banda del canal y en consecuencia, la interferencia de canal adyacente provocada por la señal de múltiples portadores. Sin embargo, en cierto punto en el tiempo, el sistema heredado se apagará y la interferencia de canal adyacente dentro de los canales originales ya no será importante. Los presentes principios proponen un mecanismo para permitir el desbloqueo de los portadores removidos una vez que el problema de interferencia se vuelve menos espectro.
MX2016002319A 2013-08-22 2014-08-11 Modo de interferencia de canal adyacente bajo para un sistema de television digital. MX2016002319A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361868786P 2013-08-22 2013-08-22
PCT/US2014/050477 WO2015026547A1 (en) 2013-08-22 2014-08-11 Low adjacent channel interference mode for a digital television system

Publications (1)

Publication Number Publication Date
MX2016002319A true MX2016002319A (es) 2018-04-20

Family

ID=51392436

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2016002319A MX2016002319A (es) 2013-08-22 2014-08-11 Modo de interferencia de canal adyacente bajo para un sistema de television digital.

Country Status (2)

Country Link
MX (1) MX2016002319A (es)
WO (1) WO2015026547A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102553322B1 (ko) * 2015-04-20 2023-07-10 한국전자통신연구원 레이어드 디비전 멀티플렉싱을 이용한 방송 신호 프레임 생성 장치 및 방송 신호 프레임 생성 방법

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2431337T3 (es) * 2008-06-04 2013-11-26 Sony Corporation Nueva estructura de trama para sistemas de múltiples portadoras
TWI429284B (zh) * 2009-07-06 2014-03-01 Mstar Semiconductor Inc 數位電視訊號參數偵測裝置與方法

Also Published As

Publication number Publication date
WO2015026547A1 (en) 2015-02-26

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Legal Events

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