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 PDFInfo
- 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
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
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
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)
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 |
ATE536013T1 (en) | 2003-04-28 | 2011-12-15 | Siemens Ag | COLLISION-FREE TRANSMISSION OF DATA TELEGRAMS USING 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)
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 |
-
2000
- 2000-09-29 DE DE2000148335 patent/DE10048335A1/en not_active Withdrawn
-
2001
- 2001-09-17 WO PCT/DE2001/003581 patent/WO2002028004A2/en active Application Filing
Patent Citations (8)
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 | |
WO2003003040A3 (en) | Enhanced location methodology for a location system | |
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 | |
WO2005008430A3 (en) | System and method for standardizing clocks in a heterogeneous networked environment | |
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 | |
WO2001050677A3 (en) | Method and device for the exchange of data between at least two users linked by means of a bus system | |
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 | |
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 | |
AU2002256475A1 (en) | Transmission power level estimation | |
WO2004061690A3 (en) | Apparatus and method for bus signal termination compensation during detected quiet cycle | |
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 | |
CA2438370A1 (en) | Command synchronization establishment system | |
WO2001069861A3 (en) | Efficient time-division multiplexed addressing protocol | |
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 |
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 |