EP1920573A1 - Procede pour manipuler des paquets voix dans une passerelle sur ip - Google Patents

Procede pour manipuler des paquets voix dans une passerelle sur ip

Info

Publication number
EP1920573A1
EP1920573A1 EP06754471A EP06754471A EP1920573A1 EP 1920573 A1 EP1920573 A1 EP 1920573A1 EP 06754471 A EP06754471 A EP 06754471A EP 06754471 A EP06754471 A EP 06754471A EP 1920573 A1 EP1920573 A1 EP 1920573A1
Authority
EP
European Patent Office
Prior art keywords
gateway
bgw
alg
packets
rtp
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Withdrawn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
EP06754471A
Other languages
German (de)
English (en)
Inventor
Peter Goldstein
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.)
Siemens Schweiz AG
Original Assignee
Siemens Schweiz AG
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 Schweiz AG filed Critical Siemens Schweiz AG
Priority to EP06754471A priority Critical patent/EP1920573A1/fr
Publication of EP1920573A1 publication Critical patent/EP1920573A1/fr
Withdrawn legal-status Critical Current

Links

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
    • H04L65/1023—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
    • H04L65/10—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
    • H04L65/40—Support for services or applications
    • H04L65/401—Support for services or applications wherein the services involve a main real-time session and one or more additional parallel real-time or time sensitive sessions, e.g. white board sharing or spawning of a subconference
    • 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
    • H04L65/60—Network streaming of media packets
    • H04L65/75—Media network packet handling
    • H04L65/765—Media network packet handling intermediate

Definitions

  • the present invention relates to a method for manipulating voice packets in an iP gateway according to the preamble of patent claim 1.
  • the present invention relates to the field of voice connections over multiple IP based networks and their gateways.
  • a gateway there may be a need to perform one or more of the following functions:
  • TFO Tandem Free Operation
  • PCM Pulse code modulation
  • Voice over Internet means telephoning over the public Internet, while the Border Gateway merely implements a reaction on the lower layers (lower layers) without the content to consider the transmitted packets in any way.
  • This simple mechanism is shown in Figure 1, with the numbers 1, 2 and 3, the respective layers are numbered.
  • the IP packets are forwarded tel quel from the network Net A to the network Net B or Net C without the user information being manipulated.
  • VoIP means that the transmission takes place in the backbone of a carrier with certain quality characteristics known under QoS and carrier-grade service.
  • Next Generation Network NGN a work item "IP2IP Gateway" with the focus on language was initiated at ITU-T.
  • Border Gateway Protocol BGP The basic functions of a Border Gateway can be found in RFC 1771 [1], where a Border Gateway Protocol BGP is specified. Which rules can be implemented in detail with the BGP protocol or can not be implemented can be found in document RFC 1772 [2].
  • the present invention is therefore based on the object for the service "VoIP" specify a method for the manipulation of voice packets in an IP gateway, can be manipulated in the language-containing IP packets targeted depending on the traffic relationship in question.
  • a database is assigned in the IP gateway which defines predetermined IP addresses of the voice packets, which manipulations to be executed by a
  • Voice processing functions to be performed on the respective language packs is a procedure created, based on the desired
  • Traffic relationship allows a targeted manipulation of language packages, this is saved by comparing the
  • IP addresses with the IP addresses of each incoming IP addresses with the IP addresses of each incoming IP addresses.
  • FIG. 1 Router with border gateway functions for networking IP-based networks according to the prior art
  • Figure 4 state diagram of the procedure rule on the iP layer.
  • the application level gateway ALG has an application called a voice processing function or "speech processing", which is capable of carrying out various types of manipulation of the voice packets; a table introduced via network management Mgt contains the destinations defined by the destination IP address and the signal processing functions that must be applied to the relevant voice packets.
  • the Application Level Gateway ALG has an RTP / UDP / IP protocol stack in each of the connected IP-based networks.
  • the application level gateway ALG has a procedure (routing) rule which describes that all non-RTP packets are routed directly to the corresponding IP-based network.
  • the direct forwarding, the so-called IP forwarding is shown symbolically in Figure 2 on layer 3 with a double arrow.
  • the above-mentioned routing rule further specifies that all RTP packets plus the IP source and IP destination addresses must be delivered to the application "Speech Processing". After manipulating the voice packets, the voice processing application passes the protocol data unit PDU plus the IP source and IP destination addresses to the RTP / UDP / IP protocol stack for forwarding to the appropriate network.
  • the routing rule does not exist on the IP layer, since only RTP packets which require manipulation are delivered directly to the ALG.
  • All non-RTP packets and all RTP packets of traffic relationships which are not subject to any processing of the voice packets are supplied by the routers R to the corresponding border gateway BGW, that is to say: the IP gateway is in an application gateway ALG and in a border Gateway BGW structured.
  • the application gateway ALG has no IP forwarding in relation to the application gateway ALG according to the first exemplary embodiment.
  • a call server is provided, which is connected to the application level gateway ALG via a protocol, eg based on H.248. This allows dynamic, connection-specific manipulation of the voice packets in the IP gateway or in the application level gateway ALG.
  • H.248 ITU-T stands for a whole family of Recommendations on «Gateway control protocols».
  • R-Policy is the initial state of the routing specification.
  • FTP the direct forwarding FW takes place.
  • the RTP packet it is then checked whether an entry is contained in the Routing rule table for the relevant address. This is shown in the figure with the query "Mark”.
  • Y ie, it is to carry out a manipulation, the transfer of "-> Sp Proc" of the language pack to the application "speech processing", as detailed above for the first embodiment in detail.
  • SNMP the creation and storage of a table takes place in accordance with the exemplary structure given below.
  • Border Gateway Protocol 4 (BGP-4)

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Computer And Data Communications (AREA)

Abstract

A une transition de réseau dans une passerelle sur IP (IP) entre deux réseaux IP, il peut être nécessaire d'exécuter une ou plusieurs des fonctions suivantes : le transcodage Codec X <- -> Codec Y, la modification du groupage par paquets, par ex. 10 ms <= => 20 ms, etc., ces fonctions devant être exécutées en fonction du trafic. L'invention concerne donc un procédé selon lequel une base de données associée à la passerelle sur IP (ALG) définit, pour des adresses IP prédéterminées des paquets voix, quelles manipulations doivent être réalisées sur ces paquets voix par une fonction de traitement vocal.
EP06754471A 2005-08-24 2006-06-21 Procede pour manipuler des paquets voix dans une passerelle sur ip Withdrawn EP1920573A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06754471A EP1920573A1 (fr) 2005-08-24 2006-06-21 Procede pour manipuler des paquets voix dans une passerelle sur ip

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP05018340A EP1758333A1 (fr) 2005-08-24 2005-08-24 Procédé pour manipulation de paquets de voix dans une passerelle IP
PCT/EP2006/005927 WO2007022818A1 (fr) 2005-08-24 2006-06-21 Procede pour manipuler des paquets voix dans une passerelle sur ip
EP06754471A EP1920573A1 (fr) 2005-08-24 2006-06-21 Procede pour manipuler des paquets voix dans une passerelle sur ip

Publications (1)

Publication Number Publication Date
EP1920573A1 true EP1920573A1 (fr) 2008-05-14

Family

ID=35617572

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05018340A Withdrawn EP1758333A1 (fr) 2005-08-24 2005-08-24 Procédé pour manipulation de paquets de voix dans une passerelle IP
EP06754471A Withdrawn EP1920573A1 (fr) 2005-08-24 2006-06-21 Procede pour manipuler des paquets voix dans une passerelle sur ip

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05018340A Withdrawn EP1758333A1 (fr) 2005-08-24 2005-08-24 Procédé pour manipulation de paquets de voix dans une passerelle IP

Country Status (2)

Country Link
EP (2) EP1758333A1 (fr)
WO (1) WO2007022818A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101277309B (zh) * 2007-03-29 2012-07-25 汪涛 一种ip地址系统及在其中建立用户间通信连接的方法
FI20075575L (fi) 2007-08-16 2009-02-17 Teliasonera Ab Konversiojärjestelmä ja menetelmä monioperaattoriympäristössä
EP2081349A1 (fr) 2008-01-16 2009-07-22 Nokia Siemens Networks Oy Procédé et système pour éviter le transcodage dans une passerelle de frontière
EP2107753A1 (fr) 2008-04-02 2009-10-07 Nokia Siemens Networks Oy Procédé de traitement de signal et équipement de réseau de traitement de signal pour amélioration de média

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7444418B2 (en) * 2001-05-11 2008-10-28 Bytemobile, Inc. Transcoding multimedia information within a network communication system
US20040258063A1 (en) * 2003-03-25 2004-12-23 Raith Alex Krister Multimedia message processing
US7715412B2 (en) * 2003-12-09 2010-05-11 At&T Corp. Decomposed H.323 network border element for use in a voice-over-internet protocol network

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007022818A1 *

Also Published As

Publication number Publication date
WO2007022818A1 (fr) 2007-03-01
EP1758333A1 (fr) 2007-02-28

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