EP1430702A1 - Procede pour l'insertion d'une sequence acoustique - Google Patents

Procede pour l'insertion d'une sequence acoustique

Info

Publication number
EP1430702A1
EP1430702A1 EP01982159A EP01982159A EP1430702A1 EP 1430702 A1 EP1430702 A1 EP 1430702A1 EP 01982159 A EP01982159 A EP 01982159A EP 01982159 A EP01982159 A EP 01982159A EP 1430702 A1 EP1430702 A1 EP 1430702A1
Authority
EP
European Patent Office
Prior art keywords
compression
subscriber
air interface
mobile radio
voice channel
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Withdrawn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
EP01982159A
Other languages
German (de)
English (en)
Inventor
Frank Bachmann
Bart Baekelandt
Herbert Heiss
Werner Kober
Thierry Nedelec
Norbert Seitter
Josef Weinhappl
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 AG
Original Assignee
Siemens 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 AG filed Critical Siemens AG
Publication of EP1430702A1 publication Critical patent/EP1430702A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/487—Arrangements for providing information services, e.g. recorded voice services or time announcements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • H04M19/041—Encoding the ringing signal, i.e. providing distinctive or selective ringing capability
    • 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
    • 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 devices and methods for importing an acoustic sequence into a voice channel of an air interface of a mobile radio network provided for a subscriber of a mobile radio network.
  • a participant's conversation is compressed (e.g. using an AMR codec for UMTS) and transmitted over a voice channel of an air interface of a mobile radio network.
  • An RNC radio network controller or base station / base station controller of a mobile radio network negotiates a set of AMR modes with a switching center via which the voice connection is to run before establishing a (e.g. UMTS) voice connection.
  • the RNC can request a change of the current AMR mode by deleting negotiated AMR modes. Such a change in the AMR mode can thus also take place during the import of acoustic sequences such as tones and announcements in the exchange.
  • the object of the present invention is to enable an efficient recording of acoustic sequences in a conversation of a mobile radio subscriber via an air interface, on which a change between several transmission modes, each characterized by a different compression of the conversation, can take place.
  • tones and announcements can be imported quickly, easily and efficiently during a conversation when the permitted transmission modes are changed.
  • a transcoding before the import is not necessary.
  • a playable acoustic sequence is expedient in all selectable ones
  • the compression data records are preferably stored in a switching center of the mobile radio network, via which the subscriber's voice sequences are transmitted, from where they are easily accessible
  • Figure 1 schematically shows the transmission of voice over for one
  • Subscriber of a mobile radio network provided voice channel of an air interface of a mobile radio network
  • Figure 2 shows schematically the insertion of an acoustic sequence (announcement, sounds, etc.) in a voice connection of a mobile radio subscriber.
  • FIG. 1 shows a subscriber 2 with a mobile station, a node B (base station), an RNC 20, an air interface 4, a first switching center 5, a further switching center 6, a further NodeB and a further RNC, a further subscriber 7, uncompressed speech sequences 8 of the subscriber 2, compressed speech sequences 9 of the subscriber 2, a memory 10 with (at least) one acoustic sequence 11-18 (of which is stored as a data record (with the same linguistic content or sound but in different compressions of the linguistic content or sound)) one is to be sent to subscriber 2 via an air interface 4).
  • FIG. 2 shows several temporal sections (sequences “1”, “m-1”, “last”) from a sound transmitted in compressed form via a voice channel of an air interface of a mobile radio network or an announcement for playing in for two Subscriber 2.7 of one or more telecommunications networks.
  • Sequence 1 is in a first one (used in a first transmission mode)
  • the time axis is indicated as an arrow.
  • the data record AI is shorter than sequence 1, since AI is a compression (with known compression methods, e.g. AMR) of the content of sequence 1.
  • AI is a compression (with known compression methods, e.g. AMR) of the content of sequence 1.
  • Bl is shorter than Sequence 1 and shorter than AI because Bl is a stronger one
  • Compression of the content of sequence 1 is as AI.
  • Cl is shorter than Sequence 1 and shorter than AI and shorter than Bl because Cl is a greater compression of the content of Sequence 1 than AI and B2.
  • a stronger compression can e.g. with a higher quality one
  • a switching center circuit or packet switching center; MSC or media gateway etc
  • linearized signal sampled at 8 kHz or a 64kbps A-law coded signal of a subscriber 20 msec long speech samples 1 (time segments of the conversation) converted into the currently valid transmission mode (AMR mode etc) A or B or C ( transcoded ).
  • AMR mode 8 transmission modes
  • 3 transmission modes A, B, C corresponding to "AMR mode 7.5.0" according to FIG. 2
  • announcements are recorded in the same transmission mode A
  • the packet AI contains an announcement compressed in transmission mode A instead of a time segment from the conversation of the subscriber. Since the (at least one) announcement is stored in compressed form in all possible (e.g. 8) transmission modes, only the announcement (from 11-18) needs to be selected for the import, the compression of which is the compression currently used on the voice channel (e.g. A according to the AMR Mode 1) corresponds.
  • Sounds and announcements are as e.g. 8 compression data sets (samples 11-18) in all 8 AMR modes transcoded in the memory 10 in FIG. 1.
  • the resulting samples are e.g. each 20msec long (an announcement can contain several consecutive samples 11 of the same or different
  • Compression include) and are stored centrally in the exchange.
  • the number of samples per tone and announcement are always the same and differ only in the byte size per 20msec sample.
  • the RNC has e.g. negotiated a mode set consisting of the following AMR modes with an exchange 5:
  • Mode A 12.20kbps with 244 bits or 31 bytes (including bit stuffing) per
  • Mode B 7.95kbps with 159 bits or 20 bytes (including bit stuffing) per
  • Mode C 4.75kbps with 95 bits or 12 bytes (including bit stuffing) per
  • AMR mode determined and the associated sample with the number 11 selected and sent, z. B. in mode A. Then the next sample with the number 2 and so on is sent in the same mode A.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)
  • Transceivers (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

L'invention vise à permettre une insertion efficace de sons et d'annonces dans une conversation d'un utilisateur de radiotéléphone mobile par l'intermédiaire d'une interface hertzienne (4) sur laquelle une commutation entre plusieurs modes de transmission caractérisés chacun par une compression différente de la conversation est possible. A cet effet, l'invention propose un dispositif et un procédé servant à introduire une séquence acoustique (11, 12, 13, 14, 15, 16, 17, 18) dans une voie de conversation, destinée à un abonné (2) d'un réseau radiotéléphonique mobile (4, 3, 5), d'une interface hertzienne (4) d'un réseau radiotéléphonique mobile (4, 3, 5). Selon l'invention, un mode de transmission (A, B, C...) à utiliser sur la voie de conversation peut être sélectionné (3, 5) parmi plusieurs modes de transmission définis par la compression plus ou moins importante de séquences de conversation (8) de l'abonné (2) à transmettre sur l'interface hertzienne. Une séquence acoustique insérable est sauvegardée dans plusieurs enregistrements de compression (11, 12, 13, 14, 15, 16, 17, 18) dont la compression correspond respectivement à la compression d'au moins un des modes de transmission (A, B, C...). Pour l'insertion d'une séquence acoustique (11, 12, 13, 14, 15, 16, 17, 18) dans la voie de conversation de l'interface hertzienne (4), l'enregistrement de compression (11) dont la compression (A) correspond à la compression (A) actuellement utilisée dans la voie de conversation est sélectionné parmi plusieurs enregistrements de compression sauvegardés (11, 12, 13, 14, 15, 16, 17, 18) et est injecté dans la voie de conversation.
EP01982159A 2001-09-26 2001-09-26 Procede pour l'insertion d'une sequence acoustique Withdrawn EP1430702A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2001/003715 WO2003028354A1 (fr) 2001-09-26 2001-09-26 Procede pour l'insertion d'une sequence acoustique

Publications (1)

Publication Number Publication Date
EP1430702A1 true EP1430702A1 (fr) 2004-06-23

Family

ID=5648292

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01982159A Withdrawn EP1430702A1 (fr) 2001-09-26 2001-09-26 Procede pour l'insertion d'une sequence acoustique

Country Status (9)

Country Link
US (1) US20050033570A1 (fr)
EP (1) EP1430702A1 (fr)
JP (1) JP2005504486A (fr)
KR (1) KR20040037118A (fr)
CN (1) CN1550095A (fr)
BR (1) BR0117139A (fr)
DE (1) DE10196903D2 (fr)
MX (1) MXPA04002743A (fr)
WO (1) WO2003028354A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4791660A (en) * 1986-08-27 1988-12-13 American Telephone And Telegraph Company Variable data compression announcement circuit
US5511119A (en) * 1993-02-10 1996-04-23 Bell Communications Research, Inc. Method and system for compensating for coupling between circuits of quaded cable in a telecommunication transmission system
US6038294A (en) * 1994-09-28 2000-03-14 Intel Corporation Method and apparatus for configuring a modem capable of operating in a plurality of modes
US6810257B1 (en) * 1997-06-26 2004-10-26 At&T Wireless Services, Inc. Method and apparatus for providing partitioned telecommunication services
FI974558A (fi) * 1997-12-18 1999-06-19 Nokia Mobile Phones Ltd Resurssin varaus liikkuvassa Internet-protokollassa
US6507591B1 (en) * 1998-04-17 2003-01-14 Advanced Micro Devices, Inc. Handshaking between repeater and physical layer device in a variable rate network transceiver
CN1196373C (zh) * 1999-07-05 2005-04-06 诺基亚公司 选择编码方法的方法
US6842768B1 (en) * 2000-03-01 2005-01-11 Siemens Communications, Inc. Apparatus and method for selectable compression
DE10013798C1 (de) * 2000-03-20 2001-09-20 Siemens Ag Verfahren zur Überwachung der Übertragungsqualität in einem zellularen Funk-Kommunikationssystem
US7133694B2 (en) * 2001-07-10 2006-11-07 Siemens Aktiengesellschaft Method and apparatus for transmitting voice information in a mobile radio network

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03028354A1 *

Also Published As

Publication number Publication date
KR20040037118A (ko) 2004-05-04
US20050033570A1 (en) 2005-02-10
CN1550095A (zh) 2004-11-24
DE10196903D2 (de) 2004-08-05
BR0117139A (pt) 2004-10-13
WO2003028354A1 (fr) 2003-04-03
MXPA04002743A (es) 2004-07-29
JP2005504486A (ja) 2005-02-10

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