WO2001080491A2 - Assemblage de paquets de transport en paquets ip par utilisation d'un signal d'horloge en provenance du flux de transport - Google Patents

Assemblage de paquets de transport en paquets ip par utilisation d'un signal d'horloge en provenance du flux de transport Download PDF

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Publication number
WO2001080491A2
WO2001080491A2 PCT/US2001/012560 US0112560W WO0180491A2 WO 2001080491 A2 WO2001080491 A2 WO 2001080491A2 US 0112560 W US0112560 W US 0112560W WO 0180491 A2 WO0180491 A2 WO 0180491A2
Authority
WO
WIPO (PCT)
Prior art keywords
packets
packet
transport packets
clock signal
stream
Prior art date
Application number
PCT/US2001/012560
Other languages
English (en)
Other versions
WO2001080491A3 (fr
Inventor
Augusto Cardoso
John Passmore
Original Assignee
B2C2, Inc.
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 B2C2, Inc. filed Critical B2C2, Inc.
Priority to AU2001255444A priority Critical patent/AU2001255444A1/en
Publication of WO2001080491A2 publication Critical patent/WO2001080491A2/fr
Publication of WO2001080491A3 publication Critical patent/WO2001080491A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/166—IP fragmentation; TCP segmentation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/324—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/325—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the network layer [OSI layer 3], e.g. X.25
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/618—Details of network addresses
    • H04L2101/622—Layer-2 addresses, e.g. medium access control [MAC] addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/28—Timers or timing mechanisms used in protocols

Definitions

  • Satellite communications channels are not under the control of local utility providers.
  • One embodiment of the present invention provides a system that converts transport packets into Internet Protocol (IP) packets using circuitry that is driven by an incoming clock signal from the transport stream.
  • IP Internet Protocol
  • the system operates by receiving a stream of transport packets along with an associated incoming clock signal at an interface module.
  • the system assembles an IP packet from a plurality of transport packets using circuitry that is driven by the incoming clock signal.
  • the IP packet is stored into a memory.
  • the system sends the IP packet across a network to a destination IP address using circuitry that is driven by an interface module clock signal. This interface module clock signal is generated locally within the system containing the interface module.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Communication Control (AREA)

Abstract

Dans un mode de réalisation, cette invention concerne un système qui convertit des paquets de transport en paquets protocole Internet (IP) par utilisation d'un circuit conduit par un signal d'horloge entrant en provenance du flux de transport. Ce système fonctionne par la réception d'un flux de paquets de transport avec un signal d'horloge entrant associé au niveau d'un module interface. Puis, ce système assemble un paquet IP à partir d'une pluralité de paquets de transport en utilisant un circuit conduit par le signal d'horloge entrant. Ensuite, ce paquet IP est stocké dans une mémoire. Enfin, le système envoie ce paquet IP dans un réseau à destination d'une adresse IP en utilisant un circuit conduit par un signal d'horloge de module interface. Ce signal d'horloge de module interface est généré localement dans le système contenant ce module interface. Dans un mode de réalisation de l'invention, le système assemble une pluralité de paquets IP dans une trame de commande de liaison de données à haut niveau (HDLC). Cette opération permet de réduire le nombre d'interruptions causées dans les systèmes en aval car seule une interruption s'impose pour traiter une trame HDLC, même si celle-là contient de multiples paquets IP, au lieu d'une interruption pour chaque paquet IP. Par ailleurs, le système envoie périodiquement la trame HDLC avec n'importe quels paquets IP disponibles à l'envoi, au lieu d'attendre de disposer d'un nombre minimum de paquets IP. Dans un mode de réalisation de l'invention, le système introduit des états d'attente de durée programmable entre les trames HDLC de façon à ménager suffisamment de temps à un récepteur en aval pour traiter les trames HDLC successives.
PCT/US2001/012560 2000-04-18 2001-04-17 Assemblage de paquets de transport en paquets ip par utilisation d'un signal d'horloge en provenance du flux de transport WO2001080491A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001255444A AU2001255444A1 (en) 2000-04-18 2001-04-17 Assembling transport packets into ip packets using a clock signal from the transport stream

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55125300A 2000-04-18 2000-04-18
US09/551,253 2000-04-18

Publications (2)

Publication Number Publication Date
WO2001080491A2 true WO2001080491A2 (fr) 2001-10-25
WO2001080491A3 WO2001080491A3 (fr) 2002-07-25

Family

ID=24200480

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/012560 WO2001080491A2 (fr) 2000-04-18 2001-04-17 Assemblage de paquets de transport en paquets ip par utilisation d'un signal d'horloge en provenance du flux de transport

Country Status (2)

Country Link
AU (1) AU2001255444A1 (fr)
WO (1) WO2001080491A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003058897A1 (fr) 2002-01-04 2003-07-17 Scientific-Atlanta, Inc. Emission de flux sur des reseaux asynchrones
GB2466259A (en) * 2008-12-17 2010-06-23 Paul Jason Rogers System for use in the home to convert a digital TV signal into IP data packets for transmission to IP devices or a home IP network

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5566174A (en) * 1994-04-08 1996-10-15 Philips Electronics North America Corporation MPEG information signal conversion system
WO1997020413A1 (fr) * 1995-11-30 1997-06-05 Oy Nokia Ab Systeme de commutation par paquets dans lequel une transmission par telephone et par satellite est utilisee

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5566174A (en) * 1994-04-08 1996-10-15 Philips Electronics North America Corporation MPEG information signal conversion system
WO1997020413A1 (fr) * 1995-11-30 1997-06-05 Oy Nokia Ab Systeme de commutation par paquets dans lequel une transmission par telephone et par satellite est utilisee

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CLAUSEN H D ET AL: "MPEG-2 AS A TRANSMISSION SYSTEM FOR INTERNET TRAFFIC" 1998 IEEE INTERNATIONAL PERFORMANCE, COMPUTING AND COMMUNICATIONS CONFERENCE. IPCCC '98. TEMPE/PHOENIX, AZ, FEBR. 16 - 18, 1998, IEEE INTERNATIONAL PERFORMANCE, COMPUTING AND COMMUNICATIONS CONFERENCE, NEW YORK, NY: IEEE, US, February 1998 (1998-02), pages 101-107, XP000668934 ISBN: 0-7803-4469-3 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003058897A1 (fr) 2002-01-04 2003-07-17 Scientific-Atlanta, Inc. Emission de flux sur des reseaux asynchrones
EP1470673A1 (fr) * 2002-01-04 2004-10-27 Scientific-Atlanta, Inc. Emission de flux sur des reseaux asynchrones
EP1470673A4 (fr) * 2002-01-04 2007-08-15 Scientific Atlanta Emission de flux sur des reseaux asynchrones
GB2466259A (en) * 2008-12-17 2010-06-23 Paul Jason Rogers System for use in the home to convert a digital TV signal into IP data packets for transmission to IP devices or a home IP network

Also Published As

Publication number Publication date
WO2001080491A3 (fr) 2002-07-25
AU2001255444A1 (en) 2001-10-30

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