DE69129794D1 - Verfahren zur Reduzierung von Phasenrauschen verursacht in einem SDH-Netzwerk mittels Zeichenstopftechnik, und integrierte Schaltungen geeignet zur Implementierung dieses Verfahrens - Google Patents

Verfahren zur Reduzierung von Phasenrauschen verursacht in einem SDH-Netzwerk mittels Zeichenstopftechnik, und integrierte Schaltungen geeignet zur Implementierung dieses Verfahrens

Info

Publication number
DE69129794D1
DE69129794D1 DE69129794T DE69129794T DE69129794D1 DE 69129794 D1 DE69129794 D1 DE 69129794D1 DE 69129794 T DE69129794 T DE 69129794T DE 69129794 T DE69129794 T DE 69129794T DE 69129794 D1 DE69129794 D1 DE 69129794D1
Authority
DE
Germany
Prior art keywords
implementing
integrated circuits
phase noise
noise caused
sdh network
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
DE69129794T
Other languages
English (en)
Other versions
DE69129794T2 (de
Inventor
Silvano Frigerio
Stefano Gastaldello
Giovanni Russo
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 Lucent SAS
Original Assignee
Alcatel Alsthom Compagnie Generale dElectricite
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 Alsthom Compagnie Generale dElectricite filed Critical Alcatel Alsthom Compagnie Generale dElectricite
Application granted granted Critical
Publication of DE69129794D1 publication Critical patent/DE69129794D1/de
Publication of DE69129794T2 publication Critical patent/DE69129794T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0478—Provisions for broadband connections
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
    • H03L7/0991—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider
    • H03L7/0994—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider comprising an accumulator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/07—Synchronising arrangements using pulse stuffing for systems with different or fluctuating information rates or bit rates
    • H04J3/076—Bit and byte stuffing, e.g. SDH/PDH desynchronisers, bit-leaking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0089—Multiplexing, e.g. coding, scrambling, SONET

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
DE69129794T 1990-12-21 1991-12-20 Verfahren zur Reduzierung von Phasenrauschen verursacht in einem SDH-Netzwerk mittels Zeichenstopftechnik, und integrierte Schaltungen geeignet zur Implementierung dieses Verfahrens Expired - Lifetime DE69129794T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT02249590A IT1244349B (it) 1990-12-21 1990-12-21 Sistema per la riduzione del rumore di fase introdotto dalla rete sdh (synchronous digital hierarchy) mediante giustificazione di puntatore e circuiti integrati per l'implementazione del sistema.

Publications (2)

Publication Number Publication Date
DE69129794D1 true DE69129794D1 (de) 1998-08-20
DE69129794T2 DE69129794T2 (de) 1999-04-08

Family

ID=11197041

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69129794T Expired - Lifetime DE69129794T2 (de) 1990-12-21 1991-12-20 Verfahren zur Reduzierung von Phasenrauschen verursacht in einem SDH-Netzwerk mittels Zeichenstopftechnik, und integrierte Schaltungen geeignet zur Implementierung dieses Verfahrens

Country Status (5)

Country Link
EP (1) EP0492549B1 (de)
JP (1) JP3273510B2 (de)
DE (1) DE69129794T2 (de)
ES (1) ES2118734T3 (de)
IT (1) IT1244349B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9405748D0 (en) * 1994-03-23 1994-05-11 Plessey Telecomm Complementary justification algorithm
EP0702465A1 (de) * 1994-09-13 1996-03-20 T.R.T. Telecommunications Radioelectriques Et Telephoniques Übertragungssystem und -gerät zum Multiplexieren und Demultiplexieren eines binären Datenstroms, der gestapft sein kann
JP3398593B2 (ja) 1998-03-18 2003-04-21 富士通株式会社 ペイロード相対位置変更要求装置及びそれを含む伝送装置

Also Published As

Publication number Publication date
EP0492549B1 (de) 1998-07-15
EP0492549A2 (de) 1992-07-01
IT1244349B (it) 1994-07-08
DE69129794T2 (de) 1999-04-08
EP0492549A3 (en) 1993-01-20
IT9022495A1 (it) 1992-06-21
IT9022495A0 (it) 1990-12-21
JP3273510B2 (ja) 2002-04-08
JPH0568029A (ja) 1993-03-19
ES2118734T3 (es) 1998-10-01

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: ALCATEL, PARIS, FR

8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: ALCATEL LUCENT, PARIS, FR