ATE205031T1 - System und verfahren zur bestimmung der end-zu- end-eigenschaften eines kommunikationskanals - Google Patents

System und verfahren zur bestimmung der end-zu- end-eigenschaften eines kommunikationskanals

Info

Publication number
ATE205031T1
ATE205031T1 AT98910176T AT98910176T ATE205031T1 AT E205031 T1 ATE205031 T1 AT E205031T1 AT 98910176 T AT98910176 T AT 98910176T AT 98910176 T AT98910176 T AT 98910176T AT E205031 T1 ATE205031 T1 AT E205031T1
Authority
AT
Austria
Prior art keywords
data communication
signal
communication devices
communication channel
determining
Prior art date
Application number
AT98910176T
Other languages
English (en)
Inventor
Bert A Davenport
James A Renkel
Peter P Jankus
Original Assignee
3Com Corp
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
Priority claimed from US08/816,699 external-priority patent/US6088334A/en
Application filed by 3Com Corp filed Critical 3Com Corp
Application granted granted Critical
Publication of ATE205031T1 publication Critical patent/ATE205031T1/de

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
    • H04Q11/0435—Details
    • H04Q11/045—Selection or connection testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/12—Arrangements providing for calling or supervisory signals
    • H04J3/125—One of the channel pulses or the synchronisation pulse is also used for transmitting monitoring or supervisory signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4917—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes
    • H04L25/4927—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes using levels matched to the quantisation levels of the channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1438—Negotiation of transmission parameters prior to communication
    • 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
    • H04Q11/0435—Details
    • H04Q11/0457—Connection protocols

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Communication Control (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Small-Scale Networks (AREA)
AT98910176T 1997-03-07 1998-03-04 System und verfahren zur bestimmung der end-zu- end-eigenschaften eines kommunikationskanals ATE205031T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US4048797P 1997-03-07 1997-03-07
US08/816,699 US6088334A (en) 1997-03-13 1997-03-13 System and method for determining end-to-end characteristics of a data communication channel
PCT/US1998/004271 WO1998039866A1 (en) 1997-03-07 1998-03-04 System and method for determining end-to-end characteristics of a data communication channel

Publications (1)

Publication Number Publication Date
ATE205031T1 true ATE205031T1 (de) 2001-09-15

Family

ID=26717102

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98910176T ATE205031T1 (de) 1997-03-07 1998-03-04 System und verfahren zur bestimmung der end-zu- end-eigenschaften eines kommunikationskanals

Country Status (6)

Country Link
EP (1) EP0916202B1 (de)
AT (1) ATE205031T1 (de)
AU (1) AU6447798A (de)
CA (1) CA2254960C (de)
DE (1) DE69801477T2 (de)
WO (1) WO1998039866A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6480549B1 (en) * 1997-04-08 2002-11-12 Vocal Technologies, Ltd. Method for determining attenuation in a digital PCM channel
US6332009B2 (en) 1997-09-03 2001-12-18 Conexant Systems, Inc. Method and apparatus for generating a line impairment learning signal for a data communication system
US6574280B1 (en) 1998-07-28 2003-06-03 Conexant Systems, Inc. Method and apparatus for detecting and determining characteristics of a digital channel in a data communication system
EP1001579A1 (de) * 1998-11-10 2000-05-17 Siemens Aktiengesellschaft Verfahren und Vorrichtung zur Bestimmung der Eigenschaften eines Übertragungskanals

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH551112A (de) * 1972-10-24 1974-06-28 Hasler Ag Verfahren zur dauernden ueberwachung von coder und decoder in einer pcm-endstelle.
DE2659512B1 (de) * 1976-12-30 1978-05-24 Wandel & Goltermann Verfahren und Schaltungsanordnung zum Erzeugen eines Digitalsignals zum Pruefen einer PCM-Endstelle
ATA300485A (de) * 1985-10-17 1991-05-15 Siemens Ag Oesterreich Einrichtung zur ueberwachung einer schaltstelle fuer die zeitmultiplexe zusammenfuegung mehrerer nachrichtenkanaele fuer digitalsignale, insbesondere fuer pulscodemodulierte signale
IE922760A1 (en) * 1992-10-21 1994-05-04 Digital Equipment Internat Ltd DS-O Loop-back detection on a DS-1 line
DE4343982C1 (de) * 1993-12-22 1995-08-17 Siemens Ag Anschlußleitungsnetz

Also Published As

Publication number Publication date
EP0916202A1 (de) 1999-05-19
WO1998039866A1 (en) 1998-09-11
DE69801477T2 (de) 2002-05-08
DE69801477D1 (de) 2001-10-04
CA2254960C (en) 2003-01-07
AU6447798A (en) 1998-09-22
CA2254960A1 (en) 1998-09-11
EP0916202B1 (de) 2001-08-29

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Legal Events

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