EA201070567A1 - Способ и устройство для обнаружения сигнала - Google Patents

Способ и устройство для обнаружения сигнала

Info

Publication number
EA201070567A1
EA201070567A1 EA201070567A EA201070567A EA201070567A1 EA 201070567 A1 EA201070567 A1 EA 201070567A1 EA 201070567 A EA201070567 A EA 201070567A EA 201070567 A EA201070567 A EA 201070567A EA 201070567 A1 EA201070567 A1 EA 201070567A1
Authority
EA
Eurasian Patent Office
Prior art keywords
signal
symbol
providing
detection
active portion
Prior art date
Application number
EA201070567A
Other languages
English (en)
Other versions
EA025988B1 (ru
Inventor
Джонатан Хайтон Стотт
Original Assignee
Бритиш Бродкастинг Корпорейшн
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 Бритиш Бродкастинг Корпорейшн filed Critical Бритиш Бродкастинг Корпорейшн
Publication of EA201070567A1 publication Critical patent/EA201070567A1/ru
Publication of EA025988B1 publication Critical patent/EA025988B1/ru

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/95—Arrangements characterised by the broadcast information itself characterised by a specific format, e.g. an encoded audio stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0012—Modulated-carrier systems arrangements for identifying the type of 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
    • H04L27/2602—Signal structure
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H04L27/2607—Cyclic extensions
    • 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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
    • 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
    • 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
    • H04N21/4383—Accessing a communication channel
    • H04N21/4384—Accessing a communication channel involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency
    • 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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2656—Frame synchronisation, e.g. packet synchronisation, time division duplex [TDD] switching point detection or subframe synchronisation
    • 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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/24—Systems for the transmission of television signals using pulse code modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Radio Relay Systems (AREA)

Abstract

Система для определения наличия сигнала DVB-T2 и информации о нем содержит средство для обеспечения символа активной порцией, обеспечения порции повторения и сдвига по частоте порции повторения относительно активной порции в передатчике. В приемнике сигнал умножается на комплексно сопряженное задержанной версии сигнала, чтобы восстановить символ. Символ может именоваться уникальным символом обнаружения сигнала.
EA201070567A 2007-11-05 2008-11-05 Способ и устройство для обнаружения сигнала EA025988B1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0721687A GB2454262B (en) 2007-11-05 2007-11-05 Signal discovery
PCT/GB2008/003723 WO2009060183A2 (en) 2007-11-05 2008-11-05 Method and apparatus for signal discovery

Publications (2)

Publication Number Publication Date
EA201070567A1 true EA201070567A1 (ru) 2010-10-29
EA025988B1 EA025988B1 (ru) 2017-02-28

Family

ID=38834846

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201070567A EA025988B1 (ru) 2007-11-05 2008-11-05 Способ и устройство для обнаружения сигнала

Country Status (11)

Country Link
EP (1) EP2220837B1 (ru)
KR (1) KR101514099B1 (ru)
CN (1) CN101743731B (ru)
AU (1) AU2008324030B2 (ru)
DK (1) DK2220837T3 (ru)
EA (1) EA025988B1 (ru)
ES (1) ES2402520T3 (ru)
GB (1) GB2454262B (ru)
PL (1) PL2220837T3 (ru)
WO (1) WO2009060183A2 (ru)
ZA (1) ZA200908650B (ru)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5446725B2 (ja) * 2009-10-28 2014-03-19 ソニー株式会社 受信装置、受信方法、受信システム
WO2011083535A1 (ja) 2010-01-08 2011-07-14 パナソニック株式会社 Ｏｆｄｍ送信装置、ｏｆｄｍ送信方法、ｏｆｄｍ受信装置及びｏｆｄｍ受信方法
FR2963864B1 (fr) * 2010-08-13 2013-06-14 Enensys Technologies Procede de diffusion dvb-t2 avec insertion de contenu regional et dispositif utilise dans le procede
CN102707157B (zh) * 2012-05-18 2015-10-28 天津理工大学 一种基于功率谱的单频脉冲信号参数估值方法
CN103686985B (zh) * 2012-09-25 2019-03-12 中兴通讯股份有限公司 用于设备到设备通信的设备发现方法及装置
MX2018008687A (es) 2014-08-25 2022-04-25 One Media Llc Configuracion dinamica de preambulo de cuadro de datos de transporte de capa fisica (phy) de multiplexion de division de frecuencia ortoganal flexible.
CN110661590B (zh) 2015-03-09 2021-04-20 第一媒体有限责任公司 系统发现与信令
CN107438043A (zh) * 2016-05-26 2017-12-05 上海高清数字科技产业有限公司 前导符号检测解析方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5627863A (en) * 1994-07-15 1997-05-06 Amati Communications Corporation Frame synchronization in multicarrier transmission systems
US6618452B1 (en) * 1998-06-08 2003-09-09 Telefonaktiebolaget Lm Ericsson (Publ) Burst carrier frequency synchronization and iterative frequency-domain frame synchronization for OFDM
US6549544B1 (en) * 1999-11-10 2003-04-15 Ibiquity Digital Corporation Method and apparatus for transmission and reception of FM in-band on-channel digital audio broadcasting
US20070280257A1 (en) * 2006-05-31 2007-12-06 Nokia Corporation Service discovery section
US7613104B2 (en) * 2006-05-31 2009-11-03 Nokia Corporation Method, apparatus and computer program product providing synchronization for OFDMA downlink signal

Also Published As

Publication number Publication date
AU2008324030A1 (en) 2009-05-14
CN101743731B (zh) 2013-07-31
KR101514099B1 (ko) 2015-04-21
GB2454262B (en) 2011-02-09
GB0721687D0 (en) 2007-12-12
AU2008324030B2 (en) 2013-07-04
DK2220837T3 (da) 2013-04-15
CN101743731A (zh) 2010-06-16
ES2402520T3 (es) 2013-05-06
WO2009060183A3 (en) 2009-06-25
EA025988B1 (ru) 2017-02-28
ZA200908650B (en) 2011-01-26
GB2454262A (en) 2009-05-06
WO2009060183A2 (en) 2009-05-14
PL2220837T3 (pl) 2013-07-31
KR20100075430A (ko) 2010-07-02
EP2220837A2 (en) 2010-08-25
EP2220837B1 (en) 2012-12-26

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