EP1327375A1 - Procede de mise a disposition de services dans une zone de raccordement d'abonne - Google Patents

Procede de mise a disposition de services dans une zone de raccordement d'abonne

Info

Publication number
EP1327375A1
EP1327375A1 EP01988005A EP01988005A EP1327375A1 EP 1327375 A1 EP1327375 A1 EP 1327375A1 EP 01988005 A EP01988005 A EP 01988005A EP 01988005 A EP01988005 A EP 01988005A EP 1327375 A1 EP1327375 A1 EP 1327375A1
Authority
EP
European Patent Office
Prior art keywords
atm
information
multiplexer
group
dslam
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP01988005A
Other languages
German (de)
English (en)
Inventor
Thomas Gemmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Solutions and Networks GmbH and Co KG
Original Assignee
Siemens AG
Nokia Siemens Networks GmbH and Co KG
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 Siemens AG, Nokia Siemens Networks GmbH and Co KG filed Critical Siemens AG
Publication of EP1327375A1 publication Critical patent/EP1327375A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478—Provisions for broadband connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5603—Access techniques
    • H04L2012/5609—Topology
    • H04L2012/561—Star, e.g. cross-connect, concentrator, subscriber group equipment, remote electronics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5614—User Network Interface
    • H04L2012/5615—Network termination, e.g. NT1, NT2, PBX
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5614—User Network Interface
    • H04L2012/5616—Terminal equipment, e.g. codecs, synch.
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5629—Admission control
    • H04L2012/563—Signalling, e.g. protocols, reference model
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/564—Connection-oriented
    • H04L2012/5642—Multicast/broadcast/point-multipoint, e.g. VOD
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5664—Support of Video, e.g. MPEG
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5665—Interaction of ATM with other protocols
    • H04L2012/5667—IP over ATM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5672—Multiplexing, e.g. coding, scrambling

Definitions

  • the invention relates to a method according to the preamble of claim 1.
  • Video distribution services such as switched digital video broadcast can be distinguished.
  • the latter are characterized by the fact that the same data stream is distributed to several authorized participants at the same time.
  • FIG. 1 shows schematically the situation in the subscriber access area for the provision of such video services.
  • a device VSU Video Streaming Unit
  • OLT Optical Line Termination
  • the video data are inserted into ATM cells and fed to a multiplexer DSLAM via the core network.
  • the data are generally carried in an ATM cell stream up to the multiplexer DSLAM and then multiplied in this as a "multicast" to all the subscriber connections NT who have subscribed to this data stream at the same time.
  • the Set Top Box STB is connected to the subscriber line NT. From this the information contained in the ATM cell stream is received, evaluated and displayed on a display device such as a screen.
  • the multiplexers DSLAM used in the prior art are generally ATM based, i.e. they do not perform any other functions above the ATM layer.
  • An ATM multicast can usually be implemented simply and efficiently in hardware.
  • IP Internet Protocol
  • the object of the invention is to show a way in which the services using a plurality of different transmission methods can be provided with simple means in the subscriber access area.
  • An advantage of the invention is that the ATM-based multiplexers used in the prior art can continue to be used unchanged. This means that both ATM-based and Ethernet / IP-based can be used with these multiplexers
  • Figure 1 is a schematic representation of the situation in the subscriber line area
  • Figure 2 shows a network architecture for video over ATM
  • FIG. 3 shows the protocol layers between set top box STB and video distributor VSU
  • Figure 4 shows a network architecture for video over IP / Ethernet
  • FIG. 5 shows the protocol layers between set top box STB and video distributor VSU
  • FIG. 6 shows the protocol layers according to the inventive method
  • a known network architecture for video via ATM is shown by way of example in FIG. Accordingly, information designed as video data is supplied to an ATM multiplex device OLT by a video distributor VSU.
  • the video data are integrated and transmitted as data encoded in MPEG format in ATM cells.
  • the ATM multiplex device OLT is optionally offered by an Internet access router IAR services.
  • the ATM cells are received by a multiplexer DSLAM and fed to the subscriber line NT via a broadband connection BB.
  • a standardized signaling protocol DSM-CC is used there for channel selection between the subscriber terminal STB and the multiplexer DSLAM in the ATM-based approach that comes into effect here. there the channels are clearly assigned to ATM connections.
  • a narrowband control connection SB is used between the multiplexer DSLAM and the subscriber line NT.
  • An ATM connection technology such as ATM25 can be used as the transmission method between the subscriber line NT and the subscriber terminal STB.
  • FIG. 3 A schematic representation with the protocol layers used is shown in FIG. 3.
  • the protocol layers between set top box STB and the video distributor VSU are disclosed.
  • the multiplexer DSLAM and the device NT are integrated into these connections.
  • the set top box STB supports the protocols MPEG, AAL5, ATM, ATM25, the subscriber line NT the protocols ATM, ATM25, VDSL etc.
  • the superimposed layers in FIG. 3 describe the layer up to which the respective device must handle the data.
  • the solution with a purely IP-based protocol layer between the subscriber terminal STB and the video distributor VSU is similar, which is shown in FIG.
  • the video data are incorporated here as MPEG data in IP packets and these are fed to the ATM multiplex device OLT and the multiplexer DSLAM in the information part of the ATM cells.
  • the Internet Group Management Protocol IGMP is used as the signaling protocol between the subscriber terminal STB and the multiplexer DSLAM.
  • the task of the multiplexer DSLAM is to process the received IGMP Most Membership Report messages and to switch the corresponding multicast within the IP layer. This means that the received ATM cell stream is terminated, ie unpacked, in the multiplexer DSLAM.
  • IP packets are taken from the ATM cells, reproduced as IP packets in the sense of a multicast, integrated back into ATM cells and sent to the subscriber via the subscriber line NT.
  • mer terminal STB supplied.
  • the Ethernet transmission technology that does not support ATM transmission methods is used here as the transmission method between the subscriber line NT and the terminal STB.
  • FIG. 5 A schematic representation with the protocol layers used is shown in FIG. 5. There the protocol layers between set top box STB and the video distributor VSU are disclosed. Multiplexer DSLAM and subscriber line NT are integrated in these connections. According to FIG. 5, the set top box STB supports the protocols MPEG, UDP / IP, Ethernet etc.
  • the protocol layers of the method according to the invention are now shown in FIG. It is assumed that the DSLAM multiplexer can be retained as a pure ATM multiplexer.
  • the information arriving from the video distributor VSU or from the Internet access router IAR is received by the ATM multiplex device OLT and fed to the multiplexer DSLAM as an ATM cell stream.
  • the information is designed as video data. These are made available to the authorized participants by the multiplexer DSLAM.
  • the ATM cells are reproduced with the video data integrated in the information part in the sense of a multicast and sent over a broadband connection BB to the subscriber line NT of the subscribers in question.
  • the multicast is controlled with the standardized signaling protocol DSM-CC of the ATM transmission process. Since Ethernet transmission technology is generally used in the home, the video data in the subscriber line NT must be taken from the ATM cells, converted into the Ethernet protocol and fed to the subscriber terminal STB.
  • the IP layer is treated exclusively in the subscriber line NT.
  • a message adaptation is to be carried out in the subscriber line NT at the subscriber.
  • the IGMP messages of the IGMP Internet protocol are converted to the DSM-CC messages of the ATM protocol.
  • the proposed solution was described as an example for a video distribution service, but the application is not limited to this, but can be used independently of the content to be distributed (e.g. broadcast or multicast of audio data, stock exchange news, etc.).

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Telephonic Communication Services (AREA)

Abstract

Selon l'état antérieur de la technique, on utilise soit des multiplexeurs ATM soit des multiplexeurs IP. Une combinaison de ces deux types de multiplexeur ne serait pas économique et ne pourrait être atteinte que de façon très complexe. Le procédé selon l'invention constitue dans ce domaine une aide par le fait que le traitement de la couche IP est transféré dans le raccordement d'abonné. Ainsi les multiplexeurs ATM peuvent également être utilisés pour la mise à disposition de services et de fonctions sur Internet.
EP01988005A 2000-10-18 2001-10-18 Procede de mise a disposition de services dans une zone de raccordement d'abonne Withdrawn EP1327375A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10051721 2000-10-18
DE10051721 2000-10-18
PCT/DE2001/003975 WO2002034003A1 (fr) 2000-10-18 2001-10-18 Procede de mise a disposition de services dans une zone de raccordement d'abonne

Publications (1)

Publication Number Publication Date
EP1327375A1 true EP1327375A1 (fr) 2003-07-16

Family

ID=7660249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01988005A Withdrawn EP1327375A1 (fr) 2000-10-18 2001-10-18 Procede de mise a disposition de services dans une zone de raccordement d'abonne

Country Status (5)

Country Link
US (1) US20040022233A1 (fr)
EP (1) EP1327375A1 (fr)
CN (1) CN1253055C (fr)
BR (1) BR0114750A (fr)
WO (1) WO2002034003A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10143105A1 (de) * 2001-09-03 2003-03-27 Siemens Ag Verfahren und Kommunikationsanordnung zur Übertragung von Rundsende-Informationen und/oder abrufbaren Informationen in einem Kommunikationsnetz
GB0311004D0 (en) * 2003-05-13 2003-06-18 Nokia Corp Charging in communication networks
SI21631A (sl) * 2003-09-18 2005-04-30 Telekom Slovenije D.D. Postopek in naprava za kvalitetno distribucijo signalov, prednostno televizijskih in/ali radijskih

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999030242A1 (fr) * 1997-12-05 1999-06-17 Telcordia Technologies, Inc. Routeur d'acces a internet base sur xdsl

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5481542A (en) * 1993-11-10 1996-01-02 Scientific-Atlanta, Inc. Interactive information services control system
US6009099A (en) * 1996-08-30 1999-12-28 Alcatel Usa Sourcing, L.P. Method of delivering video information over a telecommunications network
AU6171598A (en) * 1997-02-18 1998-09-08 Cisco Technology, Inc. Method and apparatus for multiplexing of multiple users on the same virtual circuit
CA2334203C (fr) * 1998-06-04 2004-01-27 Imagictv Inc. Systeme de distribution de programmes televises
DE10206400A1 (de) * 2002-02-15 2003-09-04 Siemens Ag Rufweiterleitung an einen weiteren Anschluss

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999030242A1 (fr) * 1997-12-05 1999-06-17 Telcordia Technologies, Inc. Routeur d'acces a internet base sur xdsl

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
AZCORRA A.; LARRABEITI D.: "IP/ATM Integrated Services over Broadband Access Copper Technologies", IEEE COMMUNICATIONS MAGAZINE, vol. 37, no. 5, May 1999 (1999-05-01), IEEE SERVICE CENTER,NEW YORK, NY, US, pages 90 - 97, XP000830886 *
See also references of WO0234003A1 *

Also Published As

Publication number Publication date
CN1448041A (zh) 2003-10-08
BR0114750A (pt) 2004-02-10
WO2002034003A1 (fr) 2002-04-25
CN1253055C (zh) 2006-04-19
US20040022233A1 (en) 2004-02-05

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Owner name: NOKIA SIEMENS NETWORKS GMBH & CO. KG

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