WO2002028004A3 - Method for the measurement of delay times between a clock generator and a communication user in a communication network with catenation - Google Patents

Method for the measurement of delay times between a clock generator and a communication user in a communication network with catenation Download PDF

Info

Publication number
WO2002028004A3
WO2002028004A3 PCT/DE2001/003581 DE0103581W WO0228004A3 WO 2002028004 A3 WO2002028004 A3 WO 2002028004A3 DE 0103581 W DE0103581 W DE 0103581W WO 0228004 A3 WO0228004 A3 WO 0228004A3
Authority
WO
WIPO (PCT)
Prior art keywords
measurement
communication
clock generator
user
delay times
Prior art date
Application number
PCT/DE2001/003581
Other languages
German (de)
French (fr)
Other versions
WO2002028004A2 (en
Inventor
Ulrich Hahn
Steffen Hellmich
Walter Moeller-Nehring
Original Assignee
Siemens Ag
Ulrich Hahn
Steffen Hellmich
Walter Moeller-Nehring
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, Ulrich Hahn, Steffen Hellmich, Walter Moeller-Nehring filed Critical Siemens Ag
Publication of WO2002028004A2 publication Critical patent/WO2002028004A2/en
Publication of WO2002028004A3 publication Critical patent/WO2002028004A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0682—Clock or time synchronisation in a network by delay compensation, e.g. by compensation of propagation delay or variations thereof, by ranging

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Computer And Data Communications (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

A measurement of delay times (ΔT) is achieved, whereby the clock generator transmits a telegram with a known telegram runtime to the communication user, by means of the communication network and starts a measurement process in connection with the above. The time measurement process is ended on receipt of an answer from the communication user and a delay time caused by the transmission calculated from the measured response time (TA), by means of the known telegram runtimes (TTL) and the reaction time of the user (TR). If a delay time for the outward and return leg is the same, then the above may be calculated using the following rule: ΔT = (TA - TR - TTL) /2
PCT/DE2001/003581 2000-09-29 2001-09-17 Method for the measurement of delay times between a clock generator and a communication user in a communication network with catenation WO2002028004A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10048335.6 2000-09-29
DE2000148335 DE10048335A1 (en) 2000-09-29 2000-09-29 Method for measuring delay times between a clock generator and a communication subscriber in a communication network with chaining topology, delay time compensation based thereon and corresponding communication network

Publications (2)

Publication Number Publication Date
WO2002028004A2 WO2002028004A2 (en) 2002-04-04
WO2002028004A3 true WO2002028004A3 (en) 2003-04-10

Family

ID=7658125

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/003581 WO2002028004A2 (en) 2000-09-29 2001-09-17 Method for the measurement of delay times between a clock generator and a communication user in a communication network with catenation

Country Status (2)

Country Link
DE (1) DE10048335A1 (en)
WO (1) WO2002028004A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7366774B2 (en) * 2003-01-31 2008-04-29 Rockwell Automation Technologies, Inc. Network delay monitor for safety control networks
EP1473864B1 (en) 2003-04-28 2011-11-30 Siemens Aktiengesellschaft Collision-free transmission of datagrams via at least one repeater
JP4873220B2 (en) * 2005-11-07 2012-02-08 横河電機株式会社 Field communication system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4594705A (en) * 1983-03-31 1986-06-10 Tokyo Shibaura Denki Kabushiki Kaisha Bus-configured local area network with data exchange capability
EP0247026A2 (en) * 1986-05-16 1987-11-25 Austria Mikrosysteme International Gmbh Method for synchronizing the time clocks of computing devices connected to a communication medium, and the computing devices concerned
DE4105267A1 (en) * 1990-02-27 1991-08-29 Motorola Inc IMPROVED SYNCHRONIZATION TECHNOLOGY
US5124980A (en) * 1989-03-20 1992-06-23 Maki Gerald G Synchronous multiport digital 2-way communications network using T1 PCM on a CATV cable
US5550807A (en) * 1994-03-04 1996-08-27 Fujitsu Limited Method of measuring distance between equipments on lan and distance measuring apparatus
DE19710971A1 (en) * 1997-03-17 1998-09-24 Siemens Ag Propagation timing method for sending telegram between two subscribers in bus system
WO2001003344A1 (en) * 1999-01-15 2001-01-11 Airbiquity Inc. In-band signalling for synchronization in a voice communications network
WO2001050657A2 (en) * 1999-12-30 2001-07-12 Telefonaktiebolaget Lm Ericsson (Publ) Synchronization of nodes

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4594705A (en) * 1983-03-31 1986-06-10 Tokyo Shibaura Denki Kabushiki Kaisha Bus-configured local area network with data exchange capability
EP0247026A2 (en) * 1986-05-16 1987-11-25 Austria Mikrosysteme International Gmbh Method for synchronizing the time clocks of computing devices connected to a communication medium, and the computing devices concerned
US5124980A (en) * 1989-03-20 1992-06-23 Maki Gerald G Synchronous multiport digital 2-way communications network using T1 PCM on a CATV cable
DE4105267A1 (en) * 1990-02-27 1991-08-29 Motorola Inc IMPROVED SYNCHRONIZATION TECHNOLOGY
US5550807A (en) * 1994-03-04 1996-08-27 Fujitsu Limited Method of measuring distance between equipments on lan and distance measuring apparatus
DE19710971A1 (en) * 1997-03-17 1998-09-24 Siemens Ag Propagation timing method for sending telegram between two subscribers in bus system
WO2001003344A1 (en) * 1999-01-15 2001-01-11 Airbiquity Inc. In-band signalling for synchronization in a voice communications network
WO2001050657A2 (en) * 1999-12-30 2001-07-12 Telefonaktiebolaget Lm Ericsson (Publ) Synchronization of nodes

Also Published As

Publication number Publication date
DE10048335A1 (en) 2002-04-25
WO2002028004A2 (en) 2002-04-04

Similar Documents

Publication Publication Date Title
WO2002025878A1 (en) Data transmitting/receiving method, transmitting device, receiving device, transmitting/receiving system, and program
EP1193636A4 (en) Method and system for managing received order
WO2003077432A3 (en) Method for performing ranging functions in an uwb system
CA2408761A1 (en) Method to calculate true round trip propagation delay and user equipment location in wcdma/utran
CA2275408A1 (en) A method for generation of accurate doppler-free local clock in satellite/wireless networks
EP1705918A3 (en) Data transmission control method, data transmitting method, data transmitting apparatus, and receiving apparatus
GB2376547B (en) A system and method to determine the validity of an interaction on a network
WO2001077785A3 (en) Network portal system, apparatus and method
WO2002093777A3 (en) Transmission power level estimation
WO2001039461A3 (en) Network event correlation system using protocol models
WO2001080508A3 (en) Dc offset compensation and bit timing synchronisation using correlations with k nown bit patterns
WO2000039672A3 (en) Model and method for using an interactive rational agent, multiagent server and system implementing same
WO1999065184A3 (en) Accounting in a communications network
ATE297090T1 (en) ENERGY SAVING CIRCUIT OF A RECEIVER
WO2001092992A3 (en) Method and apparatus for varying the rate at which broadcast beacons are transmitted
BR0010088A (en) Channel estimation method used in a radio system and receiver in a radio system
WO2003001684A3 (en) A timing estimation method and apparatus for a location system
AU2002238517A1 (en) Random number generator and method for generating a random number
WO2000062503A3 (en) Apparatus and method for authenticating messages in a multicast
WO2003003577A3 (en) Random pulse width modulation method and device
WO2002053702A3 (en) Developed seed and methods for making the same
WO2002028004A3 (en) Method for the measurement of delay times between a clock generator and a communication user in a communication network with catenation
BR0003994A (en) Method and apparatus for adaptive adjustment of the user poll signal
WO2003025764A3 (en) Method and apparatus for transmitting data over a network
WO2001091375A3 (en) Method and system for measuring one-way delay variation

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): CN US

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase