WO2007065738A1 - Dispositif et procede pour prendre en charge des applications de fax t.38 dans des reseaux fmc - Google Patents

Dispositif et procede pour prendre en charge des applications de fax t.38 dans des reseaux fmc Download PDF

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Publication number
WO2007065738A1
WO2007065738A1 PCT/EP2006/065623 EP2006065623W WO2007065738A1 WO 2007065738 A1 WO2007065738 A1 WO 2007065738A1 EP 2006065623 W EP2006065623 W EP 2006065623W WO 2007065738 A1 WO2007065738 A1 WO 2007065738A1
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WO
WIPO (PCT)
Prior art keywords
date
fax
applications
networks
sdp
Prior art date
Application number
PCT/EP2006/065623
Other languages
German (de)
English (en)
Inventor
Klaus Hoffmann
Original Assignee
Nokia Siemens Networks Gmbh & 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 Nokia Siemens Networks Gmbh & Co. Kg filed Critical Nokia Siemens Networks Gmbh & Co. Kg
Publication of WO2007065738A1 publication Critical patent/WO2007065738A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/102—Gateways
    • H04L65/1033—Signalling gateways
    • H04L65/104—Signalling gateways in the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/102—Gateways
    • H04L65/1023—Media gateways
    • H04L65/103—Media gateways in the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1083—In-session procedures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/04—Protocols specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
    • H04N1/00204—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server
    • H04N1/00209—Transmitting or receiving image data, e.g. facsimile data, via a computer, e.g. using e-mail, a computer network, the internet, I-fax
    • H04N1/00214—Transmitting or receiving image data, e.g. facsimile data, via a computer, e.g. using e-mail, a computer network, the internet, I-fax details of transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
    • H04N1/00204—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server
    • H04N1/00209—Transmitting or receiving image data, e.g. facsimile data, via a computer, e.g. using e-mail, a computer network, the internet, I-fax
    • H04N1/00214—Transmitting or receiving image data, e.g. facsimile data, via a computer, e.g. using e-mail, a computer network, the internet, I-fax details of transmission
    • H04N1/0022—Transmitting or receiving image data, e.g. facsimile data, via a computer, e.g. using e-mail, a computer network, the internet, I-fax details of transmission involving facsimile protocols or a combination of facsimile protocols and computer data transmission protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
    • H04N1/00281—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a telecommunication apparatus, e.g. a switched network of teleprinters for the distribution of text-based information, a selective call terminal
    • H04N1/00307—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a telecommunication apparatus, e.g. a switched network of teleprinters for the distribution of text-based information, a selective call terminal with a mobile telephone apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
    • H04N1/00281—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a telecommunication apparatus, e.g. a switched network of teleprinters for the distribution of text-based information, a selective call terminal
    • H04N1/00312—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a telecommunication apparatus, e.g. a switched network of teleprinters for the distribution of text-based information, a selective call terminal with a digital transmission apparatus, e.g. a switched network of teleprinters for the distribution of text-based information, SMS or ISDN device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2203/00—Aspects of automatic or semi-automatic exchanges
    • H04M2203/10—Aspects of automatic or semi-automatic exchanges related to the purpose or context of the telephonic communication
    • H04M2203/1091—Fixed mobile conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2203/00—Aspects of automatic or semi-automatic exchanges
    • H04M2203/65—Aspects of automatic or semi-automatic exchanges related to applications where calls are combined with other types of communication
    • H04M2203/657—Combination of voice and fax calls
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/0008—Connection or combination of a still picture apparatus with another apparatus
    • H04N2201/0015—Control of image communication with the connected apparatus, e.g. signalling capability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/0008—Connection or combination of a still picture apparatus with another apparatus
    • H04N2201/0015—Control of image communication with the connected apparatus, e.g. signalling capability
    • H04N2201/0024—Converting image communication control signals, e.g. group 3 facsimile protocol signals, to non-image communication control signals or vice versa
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/0077—Types of the still picture apparatus
    • H04N2201/0091—Digital copier; digital 'photocopier'

Definitions

  • More recent communication architectures provide for the separation of switching networks into connection service-related units and the transport of user information (bearer control). This results in a decomposition / separation of connection establishment and medium or bearer establishment.
  • the transmission of the user information (switching through the user channel) can be carried out using different high-bit-rate transport technologies such as ATM, IP or Frame Relay can be made.
  • the telecommunication services currently carried out in narrowband networks can also be implemented in broadband networks.
  • the participants are connected either directly (eg via a DSSl protocol) or via switching centers designed as a media gateway controller (MGC) (eg via the ISUP protocol).
  • MSC media gateway controller
  • the user information itself is converted by media gateways (MG) into the transport technology used.
  • the media gateways are controlled by assigned media gateway controllers (MGC).
  • MCC media gateway controllers
  • the media gateway controllers use standardized protocols such as B. the MGCP protocol or the H.248 protocol.
  • BICC Breast Independent Call Control
  • the media gateway controllers use a BICC (Bearer Independent Call Control) protocol standardized by the ITU, which is formed from a number of standardized protocols and thus comprises a protocol family.
  • a protocol that is adequate for the BICC protocol has been developed by the IETF standardization body with the SIP protocol (RFC3261) or the addition SIP-T (RFC3204) / SIP-I. With the latter, ISUP messages - in contrast to the SIP protocol - be transmitted. ISUP messages are generally transmitted through tunnels, ie through transparent transmission. The connection between two or more SIP participants is established with the help of SIP protocol elements. Among other things, SDP (Session Description Protocol) data is exchanged. SDP data is (bearer) end point-related data that contains information about the end devices or codecs, IP port, IP address etc. If a connection is to be established between a SIP subscriber and an H.323 or TDM / ISDN subscriber, these SIP protocol elements must be implemented accordingly in the media gateway controllers involved in H.323, TDM or ISDN protocol elements .
  • SDP Session Description Protocol
  • the ITU-T Q.1912.5 recommendation basically specifies the conditions as they arise between SIP and PSTN participants. No distinction is made between line-bound and mobile subscribers. However, non-mobile subscribers are also used for FMC networks (fixed mobile conversion, i.e. mixed mobile fixed networks). This will result in interworking of all networked units in such FMC networks with different units such as clients and gateway units (MGCF, MGC etc.).
  • FMC networks fixed mobile conversion, i.e. mixed mobile fixed networks.
  • the ITU-T recommendation Q1912.5 supports FAX T.38 applications. With increasing use of SIP clients, too can run on PDAs / cellphones that can be used in the context of 3GPP, there is also a need to perform the FAX service via T.38 (ITU-T recommendation T.38). However, this service is not possible in 3GPP because the IMS architecture FAX T.38 does not support applications.
  • the SDP data are tapped and fed to the PDF function (Policy Decision Function) via the Gq interface. It then decides whether the bearer can be released between the two end devices according to the existing SDP data. Since the device P-CSCF for a T. 38 Endgerat representative SDP date "IMAGE" not preserving or knows, this facility will face over the assigned Gq Inter- therefore not in accordance Adjustab ⁇ len also Baerer. Since the SDP data is currently only tapped when exchanging between the two terminals, it is exchanged unchanged between the terminals via SIP signaling, so the SIP signaling does not notice any problems and, if necessary, the charging begins. However, since the PDF function did not activate the bearer, the user cannot make a FAX T.38 transmission, but is charged for. The invention has for its object to show a way how FAX T.38 applications can be implemented in FMC networks.
  • Policy Decision Function Policy Decision Function
  • Figure 1 shows the basic relationships between PSTN and / or mobile subscribers, between which one
  • Internet network is arranged
  • FIG. 2 shows the concrete design of an FMC network
  • FIG. 3 the IM subsystem according to standard TS24.229, 1 shows the basic relationships between PSTN and / or mobile subscribers, between whom an Internet network is arranged.
  • PSTN networks are disclosed here by way of example, in each of which a plurality of PSTN subscribers are connected in a known manner. These are brought up to local exchanges LE, which in turn are connected to transit exchanges TX. In the transit exchanges TX, the separation between signaling information and useful information is now carried out.
  • the signaling information is supplied by the transit exchange TX directly to an associated media gateway controller MGC (MGC A or MGC B) via an ISUP protocol.
  • MGC media gateway controller
  • the user information is transmitted to a media gateway MG (MG A or MG B), which acts as an interface between the TDM network and an ATM or IP transmission network, and is transmitted in a packet-oriented manner via the transmission network in question.
  • the media gateway MG A is controlled by the media gateway controller MGC A in the same way as the media gateway MG B by the media gateway controller MGC B.
  • the useful information is again under Control of the media gateway controller MGC B assigned to the media gateway MG B is converted into a TDM data stream and fed to the PSTN subscriber in question.
  • the data transmitted between the media gateway controller MGC and the respectively assigned media gateway are supported by a standardized protocol.
  • the SIP protocol is preferably used between the two media gateway controllers MGC A, MGC B.
  • an IMS subsystem with facilities P-CSCF, PDF is introduced at the Media Gateway Controller MGC B.
  • the PSTN participants can be connected. Basically it is about 1 already has an FMC network in its simplest form.
  • FIG. 2 shows an FMC network with a plurality of structures. Accordingly, a plurality of meshed networks can be removed.
  • Networks IM subsystems IMS or domains are arranged as transition points.
  • BGCF Bandout gateway control function
  • facilities CSCF, P-CSCF and other facilities are shown, the interaction of which is also explained in the above standard.
  • the BGCF function breakout gateway control function selects the network (domain, e.g. PSTN) into which the call originating from a SIP terminal UE is to be routed. If the BGCF function determines that the destination is in its own network, i. H. in the network in which the BGCF function is arranged, the BGCF function selects an MGCF functionality that is responsible for interworking with the PSTN network. If the destination is in another network, the BGCF function passes the signaling on to the other network.
  • FIG. 3 shows the device P-CSCF, which functions as control of the interface Gq.
  • a function PDF Policy Description Function
  • FIG. 3 specifies the rules in the network. If, for example, 2 terminal devices exchange SDP data, these are picked up by the P-CSCF device and supplied to the PDF function. If the latter determines that the specified rules have been violated, the bearer is not released and both participants cannot communicate with one another as planned.
  • the interface Gq is extended by the SDP date “IMAGE”. Furthermore, the SDP date “IMAGE” is to be integrated into the function PDF of the device P-CSCF.
  • the tapped SDP data have the following structure in the Media Line field, for example:

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • General Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Human Computer Interaction (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Telephonic Communication Services (AREA)

Abstract

En l'état actuel de la technique, des applications de fax T.38 sont définies dans les réseaux fixes. Une telle définition n'existe pas dans les réseaux mobiles. Aucune application de fax T.38 ne peut ainsi être prise en charge entre un réseau fixe et des abonnés mobiles dans des réseaux FMC mixtes ('fixed mobile conversion', c.-à-d. des réseaux fixes et mobiles intégrés), dans lesquels on assiste à un interfonctionnement de toutes les unités en réseau. Selon l'invention, pour résoudre ce problème, la plage de valeurs de l'interface (Gq) du sous-système (IM) est complétée par la donnée SDP 'IMAGE'. Ainsi, en cas d'apparition d'une donnée 'IMAGE', une application de fax T.38 est reconnue et la donnée 'IMAGE' est transmise au serveur de règles PDF. Celui-ci commande alors la porteuse en conséquence et les deux abonnés peuvent communiquer par l'intermédiaire du fax T.38.
PCT/EP2006/065623 2005-12-05 2006-08-24 Dispositif et procede pour prendre en charge des applications de fax t.38 dans des reseaux fmc WO2007065738A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005058003.3 2005-12-05
DE102005058003 2005-12-05

Publications (1)

Publication Number Publication Date
WO2007065738A1 true WO2007065738A1 (fr) 2007-06-14

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PCT/EP2006/065623 WO2007065738A1 (fr) 2005-12-05 2006-08-24 Dispositif et procede pour prendre en charge des applications de fax t.38 dans des reseaux fmc

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010091562A1 (fr) * 2009-02-13 2010-08-19 上海贝尔股份有限公司 Procédé et appareil pour l'interaction entre un réseau fixe et un réseau tiers ou un serveur d'applications

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6057943A (en) * 1997-06-16 2000-05-02 Electronics And Telecommunications Research Institute G3 facsimile transmission method on CDMA cellular networks
US20010033642A1 (en) * 2000-02-11 2001-10-25 Lsi Logic Corporation Method and system for optimized facsimile transmission speed over a bandwidth limited network
EP1303109A2 (fr) * 2001-10-16 2003-04-16 Microsoft Corporation Résolution de noms virtuels de réseau

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6057943A (en) * 1997-06-16 2000-05-02 Electronics And Telecommunications Research Institute G3 facsimile transmission method on CDMA cellular networks
US20010033642A1 (en) * 2000-02-11 2001-10-25 Lsi Logic Corporation Method and system for optimized facsimile transmission speed over a bandwidth limited network
EP1303109A2 (fr) * 2001-10-16 2003-04-16 Microsoft Corporation Résolution de noms virtuels de réseau

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Procedures for real-time Group 3 facsimile communication over IP networks", ITU-T STANDARD IN FORCE (I), INTERNATIONAL TELECOMMUNICATION UNION, GENEVA,, CH, no. T38 4/4, 22 April 2004 (2004-04-22), XP017403476 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010091562A1 (fr) * 2009-02-13 2010-08-19 上海贝尔股份有限公司 Procédé et appareil pour l'interaction entre un réseau fixe et un réseau tiers ou un serveur d'applications
CN102160356A (zh) * 2009-02-13 2011-08-17 上海贝尔股份有限公司 用于固定网络与第三方网络或应用服务器交互的方法及装置

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