| 54 |
Title |
TI |
[DE] Verfahren zur Erkennung eines Synchronisierungsfehlers einer transparenten Uhr und damit im Zusammenhang stehende Schutzschemata
[EN] Method for detecting a synchronization failure of a transparent clock and related protection schemes
[FR] Procédé pour détecter une erreur de synchronisation dans une horloge transparente et schémas de protection associés |
| 71/73 |
Applicant/owner |
PA |
ALCATEL LUCENT, FR
|
| 72 |
Inventor |
IN |
BUI DINH THAI, FR
;
LE PALLEC MICHEL, FR
|
| 22/96 |
Application date |
AD |
Feb 10, 2010 |
| 21 |
Application number |
AN |
10153237 |
|
Country of application |
AC |
EP |
|
Publication date |
PUB |
Sep 21, 2011 |
33
31
32 |
Priority data |
PRC
PRN
PRD |
|
| 51 |
IPC main class |
ICM |
H04J 3/06
(2006.01)
|
| 51 |
IPC secondary class |
ICS |
|
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IPC additional class |
ICA |
|
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IPC index class |
ICI |
|
|
Cooperative patent classification |
CPC |
H04J 3/0641
H04J 3/0661
H04J 3/0673
H04J 3/14
H04L 7/04
|
|
MCD main class |
MCM |
H04J 3/06
(2006.01)
|
|
MCD secondary class |
MCS |
H04L 45/24
(2022.01)
H04L 69/40
(2022.01)
|
|
MCD additional class |
MCA |
|
| 57 |
Abstract |
AB |
[EN] The invention relates to a method for detecting and managing a synchronization failure (300) of a transparent clock (102 6 ) used in a packet network (100) in order to determine and correct residence time of time-stamped packets within a traversed element (104 6 ) of said network (100), the transparent clock (102 6 ) being part of a Master (106) /Slave (108) synchronization path (112) comprising a plurality of network elements (104 5 , 104 6, 104 7 ) and their associated transparent clocks (102 5 , 102 6 , 102 7 ), wherein it comprises the following steps:
- The step of transmitting time-stamped packets from the Master (106) to the Slave (108) through different synchronization paths (110, 112) in order to have the Slave (108) receiving multiple time signals transmitted through different paths (110, 112), and
- The step of determining a failure (300) within a transparent clock (102 6 ) of a failed/failing synchronization path (112) if the time signal provided by said failed/failing path (112) differs from the time signal provided by the other transmitting path(s) (110). |
| 56 |
Cited documents identified in the search |
CT |
|
| 56 |
Cited documents indicated by the applicant |
CT |
|
| 56 |
Cited non-patent literature identified in the search |
CTNP |
"IEEE Standard for a Precision Clock Synchronization Protocol for Networked Measurement and Control Systems", STANDARD NO.: IEEE STD 1588 (2008) IEEE, USA IEEE NEW YORK, NY, USA, 24 July 2008 (2008-07-24), XP002588173, ISBN: 978-0-7381-5400-8 0;
DINH THAI BUI ET AL: "Packet delay variation management for a better IEEE1588V2 performance", PRECISION CLOCK SYNCHRONIZATION FOR MEASUREMENT, CONTROL AND COMMUNICATION, 2009. ISPCS 2009. INTERNATIONAL SYMPOSIUM ON, IEEE, PISCATAWAY, NJ, USA, 12 October 2009 (2009-10-12), pages 1 - 6, XP031570876, ISBN: 978-1-4244-4391-8 0;
SVEN MEIER ET AL: "IEEE 1588 applied in the environment of high availability LANs", INFORMATION SCIENCES AND SYSTEMS, 2007. CISS '07. 41ST ANNUAL CON FERENCE ON, IEEE, PI, 1 October 2007 (2007-10-01), pages 100 - 104, XP031161286, ISBN: 978-1-4244-1063-7 0
|
| 56 |
Cited non-patent literature indicated by the applicant |
CTNP |
"IEEE 1588 applied in the environment of high availability LANs", CISS'07 41 ST ANNUAL CONFERENCE ON IEEE, PI, 1 October 2007 (2007-10-01) 1;
"IEEE Standard for a Precision Clock Synchronization Protocol for Networked Measurement and Control Systems", STANDARD NO: IEEE STD 1588 (2008) IEEE, 24 July 2008 (2008-07-24) 1
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Citing documents |
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Determine documents
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Sequence listings |
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Search file IPC |
ICP |
H04J 3/06
H04L 45/24
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