WO2010056357A3 - Fec frame header design for cable television signals - Google Patents

Fec frame header design for cable television signals Download PDF

Info

Publication number
WO2010056357A3
WO2010056357A3 PCT/US2009/006130 US2009006130W WO2010056357A3 WO 2010056357 A3 WO2010056357 A3 WO 2010056357A3 US 2009006130 W US2009006130 W US 2009006130W WO 2010056357 A3 WO2010056357 A3 WO 2010056357A3
Authority
WO
WIPO (PCT)
Prior art keywords
fec
header
frame header
modulation
fec frame
Prior art date
Application number
PCT/US2009/006130
Other languages
French (fr)
Other versions
WO2010056357A2 (en
Inventor
Wen Gao
Hou-Shin Chen
Marten Kabutz
Wei Zhou
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 WO2010056357A2 publication Critical patent/WO2010056357A2/en
Publication of WO2010056357A3 publication Critical patent/WO2010056357A3/en

Links

Classifications

    • 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
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • 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
    • 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
    • H04L1/0072—Error control for data other than payload data, e.g. control data

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

Efficient and reliable FEC frame header improvements suitable for headers for data packets in a digital cable television transmission system are provided. In one embodiment, the DVB-C2 Standard, Adaptive Coding and Modulation (ACM) or Variable Coding and Modulation (VCM) is applied to each FEC block to provide as much flexibility as possible. As a result, a frame header is attached in front of each FEC frame to inform the coding rate, modulation type and physical layer pipe identifier. Besides the signaling of physical layer related information, the FEC frame header has to provide a structure so that it can be easily and reliably detected in the receiver. A frame header for Forward Error Correction (FEC) encoded frames is designed for use in the DVB-C2 Standard with an extra bit to convey additional information. The FEC frame block can also include the FEC header for the subsequent FEC data block to increase robustness. The power level of the FEC header can also be increased relative to the data portion. Different modulation methods can be used for the FEC frame header depending on the modulation method used for the FEC frame data portion. These techniques increase the flexibility and robustness of FEC header detection.
PCT/US2009/006130 2008-11-17 2009-11-16 Fec frame header design for cable television signals WO2010056357A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11512508P 2008-11-17 2008-11-17
US61/115,125 2008-11-17

Publications (2)

Publication Number Publication Date
WO2010056357A2 WO2010056357A2 (en) 2010-05-20
WO2010056357A3 true WO2010056357A3 (en) 2010-07-29

Family

ID=41723054

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/006130 WO2010056357A2 (en) 2008-11-17 2009-11-16 Fec frame header design for cable television signals

Country Status (1)

Country Link
WO (1) WO2010056357A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114079534B (en) * 2020-08-20 2023-03-28 腾讯科技（深圳）有限公司 Encoding method, decoding method, apparatus, medium, and electronic device
CN117397188A (en) * 2021-06-08 2024-01-12 华为技术有限公司 Communication method and communication device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030069963A1 (en) * 2001-09-27 2003-04-10 Nikil Jayant System and method of quality of service signaling between client and server devices
EP1528702A2 (en) * 2003-11-03 2005-05-04 Broadcom Corporation FEC (forward error correction) decoder with dynamic parameters

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030069963A1 (en) * 2001-09-27 2003-04-10 Nikil Jayant System and method of quality of service signaling between client and server devices
EP1528702A2 (en) * 2003-11-03 2005-05-04 Broadcom Corporation FEC (forward error correction) decoder with dynamic parameters

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CCSDS ET AL: "DVB-S2 coding & modulation standard use for high data rate TM links. Experimental specification", INTERNET CITATION, June 2007 (2007-06-01), XP002571391 *
QINGGUO ZHAO ET AL: "A New FEC Scheme for Real-time Transmission of High Definition Video over IP Network", INTELLIGENT PERVASIVE COMPUTING, 2007. IPC. THE 2007 INTERNATIONAL CON FERENCE ON, IEEE, PI, 1 October 2007 (2007-10-01), pages 232 - 235, XP031207626, ISBN: 978-0-7695-3006-0 *

Also Published As

Publication number Publication date
WO2010056357A2 (en) 2010-05-20

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