WO2002052862A3 - Method for multimedia communication over packet channels - Google Patents

Method for multimedia communication over packet channels Download PDF

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Publication number
WO2002052862A3
WO2002052862A3 PCT/US2001/045131 US0145131W WO02052862A3 WO 2002052862 A3 WO2002052862 A3 WO 2002052862A3 US 0145131 W US0145131 W US 0145131W WO 02052862 A3 WO02052862 A3 WO 02052862A3
Authority
WO
WIPO (PCT)
Prior art keywords
packets
communication over
group
multimedia communication
over packet
Prior art date
Application number
PCT/US2001/045131
Other languages
French (fr)
Other versions
WO2002052862A2 (en
Inventor
Igor Kozintsev
Minerva Yeung
Daniel Sachs
Original Assignee
Intel Corp
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 Intel Corp filed Critical Intel Corp
Priority to DK01272472T priority Critical patent/DK1346578T3/en
Priority to AU2002217993A priority patent/AU2002217993A1/en
Priority to KR1020037008505A priority patent/KR100554062B1/en
Priority to EP01272472A priority patent/EP1346578B1/en
Priority to JP2002553836A priority patent/JP4002183B2/en
Priority to DE60123280T priority patent/DE60123280T2/en
Publication of WO2002052862A2 publication Critical patent/WO2002052862A2/en
Publication of WO2002052862A3 publication Critical patent/WO2002052862A3/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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1621—Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1657—Implicit acknowledgement of correct or incorrect reception, e.g. with a moving window
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L2001/125—Arrangements for preventing errors in the return channel

Abstract

In one embodiment, a forward error correction code is applied to a group of data packets to create a coded group of packets by supplementing a set of parity packets for each group of data packets. The data packets of a first group of packets and a set of parity packets corresponding to the data packets are transmitted. If an acknowledgement is received, sending of additional packets is ceased. If an acknowledgment is not received, parity bits continue to be transmitted.
PCT/US2001/045131 2000-12-22 2001-11-27 Method for multimedia communication over packet channels WO2002052862A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DK01272472T DK1346578T3 (en) 2000-12-22 2001-11-27 Process for multimedia communication over packet channels
AU2002217993A AU2002217993A1 (en) 2000-12-22 2001-11-27 Method for multimedia communication over packet channels
KR1020037008505A KR100554062B1 (en) 2000-12-22 2001-11-27 Method for multimedia communication over packet channels
EP01272472A EP1346578B1 (en) 2000-12-22 2001-11-27 Method for multimedia communication over packet channels
JP2002553836A JP4002183B2 (en) 2000-12-22 2001-11-27 Method for multimedia communication over a packet channel
DE60123280T DE60123280T2 (en) 2000-12-22 2001-11-27 METHOD FOR MULTIMEDIA COMMUNICATION VIA PACKAGE CHANNELS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/746,486 US7095729B2 (en) 2000-12-22 2000-12-22 Method for multimedia communication over packet channels
US09/746,486 2000-12-22

Publications (2)

Publication Number Publication Date
WO2002052862A2 WO2002052862A2 (en) 2002-07-04
WO2002052862A3 true WO2002052862A3 (en) 2003-01-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/045131 WO2002052862A2 (en) 2000-12-22 2001-11-27 Method for multimedia communication over packet channels

Country Status (11)

Country Link
US (1) US7095729B2 (en)
EP (1) EP1346578B1 (en)
JP (1) JP4002183B2 (en)
KR (1) KR100554062B1 (en)
CN (1) CN100375538C (en)
AT (1) ATE340483T1 (en)
AU (1) AU2002217993A1 (en)
DE (1) DE60123280T2 (en)
DK (1) DK1346578T3 (en)
TW (1) TW552783B (en)
WO (1) WO2002052862A2 (en)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7095729B2 (en) 2000-12-22 2006-08-22 Intel Corporation Method for multimedia communication over packet channels
GB0110125D0 (en) 2001-04-25 2001-06-20 Koninkl Philips Electronics Nv Radio communication system
US6587697B2 (en) * 2001-05-14 2003-07-01 Interdigital Technology Corporation Common control channel uplink power control for adaptive modulation and coding techniques
US20070074269A1 (en) * 2002-02-22 2007-03-29 Hai Hua Video processing device, video recorder/playback module, and methods for use therewith
US7584404B2 (en) * 2002-12-19 2009-09-01 Intel Corporation Method and apparatus for multimedia communication over packet channels
CN101656731B (en) * 2003-10-08 2015-04-15 数字方敦股份有限公司 FEC-based reliability control protocols
DE10353974A1 (en) * 2003-11-19 2005-06-30 Siemens Ag Method for transmitting digital information packets in a data network
JP4349114B2 (en) * 2003-12-10 2009-10-21 ソニー株式会社 Transmission device and method, reception device and method, recording medium, and program
KR100894235B1 (en) 2004-01-28 2009-04-20 닛본 덴끼 가부시끼가이샤 Content distribution method, encoding method, reception/reproduction method and device, and program
US7995517B2 (en) * 2004-03-24 2011-08-09 Lg Electronics Inc. System and method for transmitting units of messages in a mobile communication system
US7328393B2 (en) 2004-04-13 2008-02-05 Cisco Technology, Inc. Forward error correction in packet networks
US7606222B2 (en) * 2004-05-19 2009-10-20 Agere Systems, Inc. System and method for increasing the range or bandwidth of a wireless digital communication network
TWI397287B (en) * 2004-07-30 2013-05-21 Ericsson Telefon Ab L M Method and system for providing information of related communication sessions in hybrid telecommunication networks
US7681100B2 (en) * 2004-08-18 2010-03-16 Pine Valley Investments, Inc. System and method for retransmission of voice packets in wireless communications
EP1732331A1 (en) * 2005-06-08 2006-12-13 BRITISH TELECOMMUNICATIONS public limited company Video coding
WO2007073362A1 (en) * 2005-08-30 2007-06-28 Thomson Licensing Cross-layer optimization for scalable video multicast over ieee 802.11 wireless local area networks
US20090207790A1 (en) * 2005-10-27 2009-08-20 Qualcomm Incorporated Method and apparatus for settingtuneawaystatus in an open state in wireless communication system
JPWO2007069406A1 (en) * 2005-12-15 2009-05-21 三菱電機株式会社 COMMUNICATION SYSTEM, TRANSMITTER COMMUNICATION DEVICE, AND RECEPTION COMMUNICATION DEVICE
EP1961145B1 (en) * 2005-12-16 2012-12-12 Telefonaktiebolaget L M Ericsson (Publ) A method and a transmitter / receiver for reduced signaling in a retransmission system using hybrid automatic repeat
US7480848B2 (en) * 2006-02-10 2009-01-20 The Directv Group, Inc. Methods and apparatus to select tornado error correction parameters
JP4808054B2 (en) * 2006-03-17 2011-11-02 富士通株式会社 DATA TRANSFER METHOD, COMMUNICATION SYSTEM AND PROGRAM USING THE SAME
KR101300810B1 (en) * 2006-04-03 2013-08-26 삼성전자주식회사 Method and apparatus for encoding and decoding data, storage medium and storage medium driving system thereof
WO2008013528A1 (en) * 2006-07-25 2008-01-31 Thomson Licensing Recovery from burst packet loss in internet protocol based wireless networks using staggercasting and cross-packet forward error correction
JP4250654B2 (en) * 2006-11-17 2009-04-08 株式会社東芝 COMMUNICATION DEVICE, COMMUNICATION METHOD, AND COMMUNICATION PROGRAM
US8767839B2 (en) * 2007-01-22 2014-07-01 Qualcomm Incorporated Error filter to differentiate between reverse link and forward link video data errors
CA2577030A1 (en) * 2007-01-31 2008-07-31 Unlimi-Tech Software Inc. Improved data transfer method, system and protocol
KR101337288B1 (en) 2007-03-16 2013-12-06 삼성전자주식회사 Digital broadcasting transmission/reception apparatus and method
CN101663821A (en) * 2007-05-03 2010-03-03 汤姆森许可贸易公司 Method and apparatus for improving throughput and error performance of rateless coding systems
FR2922401B1 (en) * 2007-10-10 2010-04-16 Sagem Comm DEVICE FOR CONTINUOUSLY RECEIVING AUDIO AND / OR VIDEO DATA PACKETS
KR101571145B1 (en) * 2007-10-23 2015-11-23 톰슨 라이센싱 Method and apparatus for adaptive forward error correction with merged automatic repeat request for reliable multicast in wireless local area networks
WO2009058118A1 (en) * 2007-11-01 2009-05-07 Thomson Licensing A method and apparatus for streaming scalable multimedia data streams
US20090178096A1 (en) * 2008-01-03 2009-07-09 Microsoft Corporation Intelligent over-transmission of media data segments
US8787384B2 (en) * 2008-05-05 2014-07-22 Qualcomm Incorporated Pre-emptive acknowledgement for data transmission in a communication system
US8265099B2 (en) * 2008-12-22 2012-09-11 Gn Resound A/S Error correction scheme in a hearing system wireless network
US8325764B2 (en) * 2009-02-24 2012-12-04 Verivue, Inc. Canonical scheduling for heterogeneous content delivery
CN104467872B (en) * 2009-11-13 2018-02-02 松下电器（美国）知识产权公司 Coding method and decoder
JP5768332B2 (en) * 2010-06-24 2015-08-26 ソニー株式会社 Transmitter, receiver and communication system
DE102010032218A1 (en) * 2010-07-26 2012-01-26 Siemens Aktiengesellschaft Method for packet-switched data transmission, in particular between a means of transport and an infrastructure communicating with the means of transport
WO2013111976A1 (en) * 2012-01-25 2013-08-01 한국전자통신연구원 Graceful degradation-forward error correction method and apparatus for performing same
KR101970684B1 (en) 2012-02-28 2019-04-19 삼성전자주식회사 Apparatus and method for transmitting feedback information in wireless communication system
CN102710943B (en) * 2012-05-29 2014-10-29 罗天明 Real-time video transmission method based on forward error correction encoding window expanding
US9088612B2 (en) * 2013-02-12 2015-07-21 Verizon Patent And Licensing Inc. Systems and methods for providing link-performance information in socket-based communication devices
WO2015007750A1 (en) 2013-07-15 2015-01-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Cluster-based dependency signaling
EP3062456B1 (en) 2013-10-22 2018-09-05 Nec Corporation Encoding based on data packet delay probability
US9374201B2 (en) * 2013-12-17 2016-06-21 Qualcomm Incorporated Packet number determination mechanism
JP2016001773A (en) * 2014-06-11 2016-01-07 日本電信電話株式会社 Data transfer system, transmitter, receiver, program, and data transfer method
US10425307B2 (en) 2015-01-26 2019-09-24 Sun Patent Trust Communication system, transmitting device and receiving device
JP6558563B2 (en) * 2015-01-26 2019-08-14 パナソニックＩｐマネジメント株式会社 COMMUNICATION SYSTEM, TRANSMISSION DEVICE, AND RECEPTION DEVICE
JP6558562B2 (en) * 2015-01-26 2019-08-14 パナソニックＩｐマネジメント株式会社 COMMUNICATION SYSTEM, TRANSMISSION DEVICE, AND RECEPTION DEVICE
FR3041850B1 (en) * 2015-09-30 2018-05-25 Vogo METHOD FOR ENCODING VIDEO STREAMS BASED ON IMAGE GROUP (GOP)
GB2580867B (en) * 2018-10-25 2021-12-29 Cisco Tech Inc Methods, apparatuses and system for error control
US20200412483A1 (en) * 2019-06-25 2020-12-31 Cisco Technology, Inc. Xor forward error correction for isolated and burst losses over a software-defined-wide area network
WO2022209257A1 (en) * 2021-03-31 2022-10-06 ソニーグループ株式会社 Communication device, communication method, and communication system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0924890A2 (en) * 1997-12-15 1999-06-23 The Whitaker Corporation Adaptive error correction for a communication link
US5983382A (en) * 1996-12-31 1999-11-09 Lucent Technologies, Inc. Automatic retransmission query (ARQ) with inner code for generating multiple provisional decodings of a data packet
WO2000021236A1 (en) * 1998-10-08 2000-04-13 Telefonaktiebolaget Lm Ericsson (Publ) Data communication method and system using an adaptive hybrid-arq scheme

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2578703B1 (en) * 1985-03-05 1987-06-26 Europ Agence Spatiale SELF-ADAPTIVE AND HYBRID DATA TRANSMISSION METHOD, PARTICULARLY FOR SPATIAL TELECOMMUNICATION
US5754754A (en) * 1995-07-26 1998-05-19 International Business Machines Corporation Transmission order based selective repeat data transmission error recovery system and method
US5968197A (en) * 1996-04-01 1999-10-19 Ericsson Inc. Method and apparatus for data recovery
US5974028A (en) * 1997-02-24 1999-10-26 At&T Corp. System and method for improving transport protocol performance in communication networks having lossy links
US6421387B1 (en) * 1998-05-15 2002-07-16 North Carolina State University Methods and systems for forward error correction based loss recovery for interactive video transmission
US6307487B1 (en) * 1998-09-23 2001-10-23 Digital Fountain, Inc. Information additive code generator and decoder for communication systems
US6366622B1 (en) * 1998-12-18 2002-04-02 Silicon Wave, Inc. Apparatus and method for wireless communications
US6421803B1 (en) * 1999-06-25 2002-07-16 Telefonaktiebolaget L M Ericsson (Publ) System and method for implementing hybrid automatic repeat request using parity check combining
US6629285B1 (en) * 2000-01-04 2003-09-30 Nokia Corporation Data transmission
US7095729B2 (en) 2000-12-22 2006-08-22 Intel Corporation Method for multimedia communication over packet channels

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5983382A (en) * 1996-12-31 1999-11-09 Lucent Technologies, Inc. Automatic retransmission query (ARQ) with inner code for generating multiple provisional decodings of a data packet
EP0924890A2 (en) * 1997-12-15 1999-06-23 The Whitaker Corporation Adaptive error correction for a communication link
WO2000021236A1 (en) * 1998-10-08 2000-04-13 Telefonaktiebolaget Lm Ericsson (Publ) Data communication method and system using an adaptive hybrid-arq scheme

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BYERS J W ET AL: "Accessing multiple mirror sites in parallel: using Tornado codes to speed up downloads", INFOCOM '99. EIGHTEENTH ANNUAL JOINT CONFERENCE OF THE IEEE COMPUTER AND COMMUNICATIONS SOCIETIES. PROCEEDINGS. IEEE NEW YORK, NY, USA 21-25 MARCH 1999, PISCATAWAY, NJ, USA,IEEE, US, 21 March 1999 (1999-03-21), pages 275 - 283, XP010323769, ISBN: 0-7803-5417-6 *
SHU LIN ET AL: "AUTOMATIC-REPEAT-REQUEST ERROR-CONTROL SCHEMES", IEEE COMMUNICATIONS MAGAZINE, IEEE SERVICE CENTER. PISCATAWAY, N.J, US, vol. 22, no. 12, 1 December 1984 (1984-12-01), pages 5 - 17, XP000674086, ISSN: 0163-6804 *

Also Published As

Publication number Publication date
CN100375538C (en) 2008-03-12
DK1346578T3 (en) 2007-01-29
ATE340483T1 (en) 2006-10-15
JP4002183B2 (en) 2007-10-31
KR100554062B1 (en) 2006-02-22
CN1483289A (en) 2004-03-17
US7095729B2 (en) 2006-08-22
US20020080802A1 (en) 2002-06-27
KR20030064867A (en) 2003-08-02
EP1346578B1 (en) 2006-09-20
WO2002052862A2 (en) 2002-07-04
EP1346578A2 (en) 2003-09-24
AU2002217993A1 (en) 2002-07-08
DE60123280D1 (en) 2006-11-02
TW552783B (en) 2003-09-11
DE60123280T2 (en) 2007-05-10
JP2004517534A (en) 2004-06-10

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