WO2003081927A1 - Transmission d'informations vocales dans un reseau oriente paquets - Google Patents

Transmission d'informations vocales dans un reseau oriente paquets Download PDF

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Publication number
WO2003081927A1
WO2003081927A1 PCT/EP2003/003101 EP0303101W WO03081927A1 WO 2003081927 A1 WO2003081927 A1 WO 2003081927A1 EP 0303101 W EP0303101 W EP 0303101W WO 03081927 A1 WO03081927 A1 WO 03081927A1
Authority
WO
WIPO (PCT)
Prior art keywords
mobile terminal
packet
oriented
software
connection
Prior art date
Application number
PCT/EP2003/003101
Other languages
German (de)
English (en)
Inventor
Ramin Mirbaha
Vahid Mirbaha
Original Assignee
Fg Microtec Gmbh
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 Fg Microtec Gmbh filed Critical Fg Microtec Gmbh
Priority to AU2003223987A priority Critical patent/AU2003223987A1/en
Publication of WO2003081927A1 publication Critical patent/WO2003081927A1/fr

Links

Classifications

    • 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
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • 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
    • H04L65/70—Media network packetisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/253—Telephone sets using digital voice transmission
    • H04M1/2535—Telephone sets using digital voice transmission adapted for voice communication over an Internet Protocol [IP] network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • the invention relates to a method and a mobile terminal for a packet-oriented network, in particular UMTS, which by default transmits voice information in a connection-oriented manner.
  • the networks currently used are hybrid in nature due to the high level of real-time certification that mobile devices place when transmitting voice information. On the one hand, they are packet-oriented when it comes to information that does not have high real-time requirements. On the other hand, you are connection-oriented when it comes to voice transmissions.
  • Dedicated channels are generally used in these voice transmissions. Due to the strong fluctuations that occur especially with mobile devices with regard to the connection quality, high-quality transmission of voice information by packets can only take place if
  • Registration it has already been described in a registration that was submitted in advance. Rather it is Object of this invention to provide a transparent method in which the choice of the type of transmission is transparent to the user.
  • the object of the invention is to transmit voice information in a transparent form in a packet-oriented manner.
  • UMTS packet-oriented network
  • This terminal is provided with a module, which can preferably be installed retrospectively, which intercepts the voice information before it is connection-oriented be transmitted.
  • a module which can preferably be installed retrospectively, which intercepts the voice information before it is connection-oriented be transmitted.
  • no connection is established using the conventional connection-oriented method.
  • codec is used before the speech information is broken down into packets and packed accordingly.
  • the choice of codec depends on how the quality of the connection is currently and how it can be expected in the future.
  • the assessment of future behavior is calculated using an appropriate algorithm, which is preferably based on stochastic considerations. However, it is also possible to use other algorithms, such as e.g. B. neural networks.
  • the RTP protocol is preferably taken into account for the packet-oriented dispatch of the packets. After the packets have been packaged in this way, they are transmitted via the packet-oriented connection to a software switch / media gateway, which then forwards the packets.
  • the software switch / media gateway can u. You may also unpack the packages and repack them into other packages. This depends on who the other party is on the opposite side and how the connection to him can be established.
  • this software layer can decide that the information is transmitted in a conventional manner.
  • the functionality can also be an integral part of the terminal device and is implemented by appropriate hardware components.
  • the software described is integrated as a layer in the existing software of the mobile device, so that none Changes which are visible to the user must be made in the applications which access software layers which are above the module according to the invention. With this approach, the user appears to be communicating in a conventional manner.
  • the layer is therefore transparent to him, since he generally only works with applications such as browsers, telephone books, address books, voters, which are arranged on the highest software layer.
  • the module is designed as a driver, which is placed over the packet stack and over the driver, which is provided for connection-oriented communication.
  • the software provides interfaces that applications can directly access. In this case, it is not a transparent embodiment, but a special one for developers. This provides APIs that other software can access directly.
  • the invention also includes an RTCP handler which checks the quality of the transmission in order to possibly make changes to the settings.
  • the exact structure of this RTCP handler can be found in the RFCs listed below.
  • Another component of the present invention is a module for compensating for jitter losses. This compensates for distortion and packet loss, preferably using a buffer.
  • Another component of the present invention is a method for the transmission of voice information in a packet-oriented radio network, in particular UMTS, which by default voice-oriented connection information transmits, in which voice information of a mobile terminal is intercepted, which is to be transmitted in a connection-oriented manner.
  • the speech information is encoded, unless this has already been done in sufficient form. Depending on the quality of a packet-oriented connection, a different code can be selected.
  • the encoded voice information is packetized, preferably RTP packets being generated.
  • future-looking algorithms in particular stochastic or neuronal algorithms, select a codec and / or determine the form of the packaging.
  • the packet-oriented voice connection is initialized and set up via a softswitch / media gateway, which forwards the information to the recipient.
  • Another component is a computer program that can run on different platforms and implements the method described above. This can be a machine-independent code or machine-specific code.
  • the existing drivers are replaced or expanded, and the libraries are replaced and / or expanded.
  • Another component of the invention is a data carrier with a data structure, which executes the method according to the invention after loading into a main memory of a mobile terminal.
  • Figure 1 is a schematic overview of the different layers and their arrangement in the present invention and the structure of the corresponding modules.
  • FIG. 2 shows a detailed structure of the schematic representation of Figure 1 with different sub-components and their corresponding connections.
  • the module fmQ is a quality assurance system that constantly checks the quality and makes estimates for the future. On the basis of these estimates, a different codec is selected at an early stage, or other parameters are changed which, for. B. concern the signal power or type of packaging.
  • the real-time packet processor which is responsible for the packaging, is located above the transport layers, as represented by IP, UDP and TCP. Above this layer is the module that is responsible for coding the speech information. Further language applications are based on this module.
  • the module fmQ is a quality assurance system that constantly checks the quality and makes estimates for the future. On the basis of these estimates, a different codec is selected at an early stage, or other parameters are changed which, for. B. concern the signal power or type of packaging.
  • the real-time packet processor which is responsible for the packaging, is located above the transport layers, as represented by IP, UDP and TCP. Above this layer is the module that is responsible for coding the speech information. Further language applications are based on this module.
  • Multimedia control is used to provide the APIs
  • Fig. 2 shows the detailed structure with information paths between the individual modules.
  • the codec module consists of an interface unit that accesses the voice information.
  • the arrivals Information is filtered so that an echo can be eliminated and the volume is adjusted accordingly.
  • the information is then transferred to a coding unit, which is responsible for both coding and decoding (AMR and AMR-WB codecs, see 3GPP documents in the appendix).
  • This real-time packet processor consists on the one hand of a distortion and loss compensator, an RTP packetizer and an RTCP handler.
  • the functionalities can be found in the corresponding RFCs, which are listed at the end of the registration.
  • the distortion and loss compensator has already been described above. It essentially consists of a memory area.
  • the unit for packaging packages is designed in such a way that it can take other transport protocols into account at any time by simply expanding it.
  • the real-time packet processor has access to the underlying network levels. In the present illustration, the real-time packet processor accesses the UDP level. However, it is also possible for him to access the IP level or TCP level directly.
  • the real-time processor has interfaces to the TCP / IP stack and offers APIs for multimedia applications and APIs for the RTCP.
  • the multimedia control unit is responsible for establishing connections, managing and checking these connections. Furthermore, this unit has access to the encoder via a corresponding control unit.
  • This module plays a major role in the communication with other modules.
  • the communication functionality is implemented in the session control unit.
  • the module allows other applications to be started if corresponding signals are communicated by SIP or if other modules request this.
  • On Example is e.g. B. a jpg viewer, or an Internet browser that starts with the appropriate data.
  • a corresponding administration is there, which recognizes, based on the extensions of the information, the programs which are to be started for processing the information.
  • the signal control unit which is responsible for the physical signals, is below the multimedia control unit.
  • One of the main tasks of this unit is to map the SIP protocol.
  • the implementation of this unit uses methods from the 3GPP document as described below.
  • This unit also realizes the PDP context activation, the data connection to the UMTS network and to the USIM, whereby users are authenticated and connections can be established with the appropriate connection properties (quality of service).
  • connection properties quality of service
  • SDP is used in some SIP methods to describe the properties of the terminal that is responsible for the RTP stream and to negotiate the properties of the devices that are involved in the multimedia call.
  • the unit also has module interfaces to the multimedia control unit (MC) and to the IP stack.
  • RTP A Transport Protocol for Real-Time Applications
  • RTP A Transport Protocol for Real-Time Applications

Landscapes

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

Abstract

La présente invention concerne un terminal mobile destiné à un réseau orienté paquets, notamment à un système UMTS, qui transmet de façon orientée connexion des informations vocales de façon standard. Ledit terminal mobile comprend un module qui peut être installé de préférence rétroactivement, intercepte les informations vocales avant de les transmettre de façon orientée connexion, afin de les répartir en paquets qui sont alors transmis de façon orientée paquets.
PCT/EP2003/003101 2002-03-26 2003-03-15 Transmission d'informations vocales dans un reseau oriente paquets WO2003081927A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003223987A AU2003223987A1 (en) 2002-03-26 2003-03-15 Transmission of speech information in a packet-oriented network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10213733A DE10213733B4 (de) 2002-03-26 2002-03-26 Paket Prozessor für ein mobiles Endgerät
DE10213733.1 2002-03-26

Publications (1)

Publication Number Publication Date
WO2003081927A1 true WO2003081927A1 (fr) 2003-10-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/003101 WO2003081927A1 (fr) 2002-03-26 2003-03-15 Transmission d'informations vocales dans un reseau oriente paquets

Country Status (5)

Country Link
CN (1) CN1643956A (fr)
AU (1) AU2003223987A1 (fr)
DE (1) DE10213733B4 (fr)
RU (1) RU2313195C2 (fr)
WO (1) WO2003081927A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9042388B2 (en) 2008-07-24 2015-05-26 Telefonaktiebolaget L M Ericsson (Publ) Lawful interception for 2G/3G equipment interworking with evolved packet system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101141682B (zh) * 2007-10-09 2010-12-08 中兴通讯股份有限公司 移动通信系统中无线网与核心网间编解码协商的方法
CN101667888B (zh) * 2009-09-16 2013-09-11 中兴通讯股份有限公司 自适应多速率调整方法及装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001020946A1 (fr) * 1999-09-15 2001-03-22 Ericsson Inc. Procede et systeme permettant de definir une qualite de service pour des communications entre une station mobile et un reseau de communications sans fil par paquets
DE10123639A1 (de) * 2000-05-08 2001-11-29 Vtech Communications Ltd Verfahren zur Kanalauswahl und zur digitalen Datenübertragung über eine drahtlose Kommunikationsverbindung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001020946A1 (fr) * 1999-09-15 2001-03-22 Ericsson Inc. Procede et systeme permettant de definir une qualite de service pour des communications entre une station mobile et un reseau de communications sans fil par paquets
DE10123639A1 (de) * 2000-05-08 2001-11-29 Vtech Communications Ltd Verfahren zur Kanalauswahl und zur digitalen Datenübertragung über eine drahtlose Kommunikationsverbindung

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
POPPE F ET AL: "Guaranteeing quality of service to packetised voice over the UMTS air interface", IEEE, 5 June 2000 (2000-06-05), pages 84 - 91, XP010500885 *
SCHULZRINNE H ET AL: "RFC 1889: RTP: A Transport Protocol for Real-Time Applications", NETWORK WORKING GROUP REQUEST FOR COMMENTS, XX, XX, January 1996 (1996-01-01), pages 1 - 38, XP002229836 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9042388B2 (en) 2008-07-24 2015-05-26 Telefonaktiebolaget L M Ericsson (Publ) Lawful interception for 2G/3G equipment interworking with evolved packet system
US9762620B2 (en) 2008-07-24 2017-09-12 Telefonaktiebolaget Lm Ericsson (Publ) Lawful interception for 2G/3G equipment interworking with evolved packet system

Also Published As

Publication number Publication date
RU2313195C2 (ru) 2007-12-20
DE10213733B4 (de) 2012-12-06
AU2003223987A1 (en) 2003-10-08
CN1643956A (zh) 2005-07-20
DE10213733A1 (de) 2003-10-09
RU2004131555A (ru) 2005-04-10

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