ES2196516T3 - Tecnica y dispositivo de recuperacion de temporizacion con baja fluctuacion para cargas utiles de tasa de bits constante (cbr) en modo de transferencia asincrono (atm). - Google Patents

Tecnica y dispositivo de recuperacion de temporizacion con baja fluctuacion para cargas utiles de tasa de bits constante (cbr) en modo de transferencia asincrono (atm).

Info

Publication number
ES2196516T3
ES2196516T3 ES98440243T ES98440243T ES2196516T3 ES 2196516 T3 ES2196516 T3 ES 2196516T3 ES 98440243 T ES98440243 T ES 98440243T ES 98440243 T ES98440243 T ES 98440243T ES 2196516 T3 ES2196516 T3 ES 2196516T3
Authority
ES
Spain
Prior art keywords
transfer mode
asynchronous transfer
cbr
atm
seal
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.)
Expired - Lifetime
Application number
ES98440243T
Other languages
English (en)
Inventor
William Edward Powell
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.)
Alcatel CIT SA
Alcatel Lucent SAS
Original Assignee
Alcatel CIT SA
Alcatel SA
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 Alcatel CIT SA, Alcatel SA filed Critical Alcatel CIT SA
Application granted granted Critical
Publication of ES2196516T3 publication Critical patent/ES2196516T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/062—Synchronisation of signals having the same nominal but fluctuating bit rates, e.g. using buffers
    • H04J3/0632—Synchronisation of packets and cells, e.g. transmission of voice via a packet network, circuit emulation service [CES]
    • 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
    • H04L2012/5638—Services, e.g. multimedia, GOS, QOS
    • H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
    • H04L2012/5652—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly
    • H04L2012/5653—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly using the ATM adaptation layer [AAL]
    • H04L2012/5654—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly using the ATM adaptation layer [AAL] using the AAL1
    • 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
    • H04L2012/5674—Synchronisation, timing recovery or alignment

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Hardware Design (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

UN ALGORITMO (76, 78, 80, 82, 106, 104) DEL SELLO DE LA HORA RESIDUAL SINCRONO EXISTENTE (SHRS) SE USA JUNTO CON INFORMACION (74) PARA EL LLENADO DE MEMORIA INTERMEDIA FILTRADA ADAPTATIVAMENTE, A FIN DE RECONSTRUIR UNA VELOCIDAD DE RELOJ DE CARGA (102) A VELOCIDAD DE BITS CONSTANTE ORIGINAL (VBC) PARA CARGAS VBC (88, 96) EN MODO DE TRANSFERENCIA ASINCRONA (MTA). EL SELLO DE LA HORA SHRS (96) SE USA COMO FACTOR PRIMARIO PARA RECUPERAR LA VELOCIDAD DE RELOJ DE LA CARGA, PERO SE GENERA UN FACTOR DE CORRECCION DE FRECUENCIA DE CARGA SECUNDARIO (112) POR FILTRACION (118, 120) DE LA POSICION DE RELLENO DE LA MEMORIA INTERMEDIA DEL DESINCRONIZADOR. ESTE FACTOR DE CORRECCION SE DETERMINA COMO PARTE DE UNA DISPOSICION DE REALIMENTACION QUE ALTERA ADAPTATIVAMENTE (128) LA CONSTANTE DE TIEMPO DE FILTRACION BASADA EN LA POSICION DE LA MEMORIA INTERMEDIA DESVIADA DE SU CENTRO. DE ESTA MANERA, SE CORRIGE LA FRECUENCIA DE RELOJ DE CARGA (102), INCLUSO EN PRESENCIA DE LA PERDIDA DE SEGUIBILIDAD DE LA SINCRONIZACION PRS ENTRE LOS NODOS DE TRAZADO DE MAPAS Y DESINCRONIZADOR PARA IMPEDIR EL DESBORDAMIENTO DE LA MEMORIA INTERMEDIA DEL DESINCRONIZADOR.
ES98440243T 1997-11-04 1998-11-02 Tecnica y dispositivo de recuperacion de temporizacion con baja fluctuacion para cargas utiles de tasa de bits constante (cbr) en modo de transferencia asincrono (atm). Expired - Lifetime ES2196516T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/963,786 US6111878A (en) 1997-11-04 1997-11-04 Low jitter timing recovery technique and device for asynchronous transfer mode (ATM) constant bit rate (CBR) payloads

Publications (1)

Publication Number Publication Date
ES2196516T3 true ES2196516T3 (es) 2003-12-16

Family

ID=25507712

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98440243T Expired - Lifetime ES2196516T3 (es) 1997-11-04 1998-11-02 Tecnica y dispositivo de recuperacion de temporizacion con baja fluctuacion para cargas utiles de tasa de bits constante (cbr) en modo de transferencia asincrono (atm).

Country Status (5)

Country Link
US (1) US6111878A (es)
EP (1) EP0915587B1 (es)
CA (1) CA2250387A1 (es)
DE (1) DE69813148T2 (es)
ES (1) ES2196516T3 (es)

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US6157646A (en) 1998-01-26 2000-12-05 Adc Telecommunications, Inc. Circuit and method for service clock recovery
WO1999048234A1 (en) * 1998-03-16 1999-09-23 Telefonaktiebolaget Lm Ericsson Synchronous method for the clock recovery for cbr services over the atm network
US6400683B1 (en) * 1998-04-30 2002-06-04 Cisco Technology, Inc. Adaptive clock recovery in asynchronous transfer mode networks
US6556573B1 (en) * 1998-06-05 2003-04-29 Nokia Telecommunications Oy Synchronization of ATM-based network system using variable bit rate ATM adaptation layer protocols
JP3296297B2 (ja) * 1998-07-23 2002-06-24 ヤマハ株式会社 同期制御方式
US6791987B1 (en) * 1998-10-23 2004-09-14 Nortel Networks Limited Maintaining synchronization over asynchronous interface
JP3946886B2 (ja) * 1998-11-06 2007-07-18 富士通株式会社 タイミングリカバリｐｌｌの制御方法及び信号処理回路
US6885661B1 (en) 1998-12-30 2005-04-26 Nortel Networks Limited Private branch exchange built using an ATM Network
US6804229B2 (en) 1998-12-30 2004-10-12 Nortel Networks Limited Multiple node network architecture
US6768736B1 (en) * 1998-12-30 2004-07-27 Nortel Networks Limited Using an ATM switch to grow the capacity of a switching stage
US6778538B2 (en) 1998-12-30 2004-08-17 Nortel Networks Limited Virtual junctors
US6788703B2 (en) 1998-12-30 2004-09-07 Nortel Networks Limited DS0 on ATM, mapping and handling
US6751228B1 (en) * 1999-03-23 2004-06-15 Yamaha Corporation Packet handler of audio data by isochronous mode
US6937613B1 (en) * 1999-06-14 2005-08-30 Lucent Technologies Inc. Method and apparatus for synchronization of high-bit-rate digital subscriber line signals
IT1308746B1 (it) * 1999-06-22 2002-01-10 Cselt Centro Studi Lab Telecom Dispositivo per la ricostruzione della temporizzazione di un canaledati trasportato su rete a pacchetto e relativo procedimento.
FI115494B (fi) 1999-09-08 2005-05-13 Nokia Corp Tukiaseman taajuussynkronointi
US6721328B1 (en) * 1999-11-19 2004-04-13 Adc Telecommunications, Inc. Adaptive clock recovery for circuit emulation service
ES2238991T3 (es) * 2000-01-27 2005-09-16 Telefonaktiebolaget Lm Ericsson (Publ) Un receptor para la recuperacion del reloj en el transporte de servicios cbr, originados tanto desde transmisores dcti como desde transmisores srts.
ATE322784T1 (de) 2001-01-19 2006-04-15 Verfahren und vorrichtung zur zuweisung der dateneinheiten von zellen zu aufeinanderfolgenden speicherspositionen von datenrahmen durch anwendung einer schätzung der zeigersposition
US20020172229A1 (en) * 2001-03-16 2002-11-21 Kenetec, Inc. Method and apparatus for transporting a synchronous or plesiochronous signal over a packet network
US7187697B1 (en) * 2001-04-19 2007-03-06 Bigband Networks, Inc. Method and system for delivering MPEG video over bursty communication channels
US7106758B2 (en) * 2001-08-03 2006-09-12 Adc Telecommunications, Inc. Circuit and method for service clock recovery
US6990109B2 (en) * 2001-10-31 2006-01-24 Adtran, Inc. Method and apparatus for providing reliable voice and voice-band data transmission over asynchronous transfer mode (ATM) network
GB0205350D0 (en) * 2002-03-07 2002-04-24 Zarlink Semiconductor Inc Clock synchronisation over a packet network using SRTS without a common network clock
AU2003253825A1 (en) * 2002-07-08 2004-01-23 Globespanvirata Incorporated System and method for providing network timing recovery
GB2399263A (en) * 2003-03-07 2004-09-08 Zarlink Semiconductor Ltd Clock synchronisation over a packet network
US7313181B2 (en) * 2003-09-10 2007-12-25 Intel Corporation Calibration of scale factor in adaptive equalizers
JP4571518B2 (ja) * 2005-02-14 2010-10-27 富士通株式会社 伝送装置
US7646836B1 (en) * 2005-03-01 2010-01-12 Network Equipment Technologies, Inc. Dynamic clock rate matching across an asynchronous network
US7623539B2 (en) * 2005-03-31 2009-11-24 Agere Systems Inc. Apparatus and method for processing cells in an ATM adaptation layer device in a communications system that exhibits cell delay variation
US7894489B2 (en) * 2005-06-10 2011-02-22 Symmetricom, Inc. Adaptive play-out buffers and adaptive clock operation in packet networks
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Also Published As

Publication number Publication date
DE69813148T2 (de) 2003-10-16
EP0915587A2 (en) 1999-05-12
EP0915587B1 (en) 2003-04-09
CA2250387A1 (en) 1999-05-04
DE69813148D1 (de) 2003-05-15
US6111878A (en) 2000-08-29
EP0915587A3 (en) 2000-10-11

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