EP 1078314 A1 20010228 - METHOD AND APPARATUS FOR SYNCHRONISATION OF NODES
Title (en)
METHOD AND APPARATUS FOR SYNCHRONISATION OF NODES
Title (de)
VERFAHREN UND GERÄT ZUR SYNCHRONISATION VON KNOTENPUNKTEN
Title (fr)
PROCEDE ET APPAREIL DE SYNCHRONISATION DE NOEUDS
Publication
Application
Priority
- SE 9900613 W 19990416
- SE 9801631 A 19980511
Abstract (en)
[origin: WO9959052A1] The present invention relates to a method and apparatus for synchronising at least one node (N1-N4) in a net (n), which node (N1-N4) is used as an example for packet oriented transmission. A server (C), generating a stable frequency (fs), and the node (N1-N4) measures the number of cycles of the stable frequency (fs) respective the number of cycles of a local frequency (f1-f4), generated by the node (N1-N4). These measurements are started respective stopped at the instant of time when a phase of a signal, generated by a power network (PN) connected to the server (C) and the node (N1-N4), equals zero. The results of the measurements are compared and the node (N1-N4) is adjusted accordingly. Measurements can continuously be performed by the server (C) and the node (N1-N4).
IPC 1-7
IPC 8 full level
H04B 7/26 (2006.01); H04J 3/06 (2006.01); H04L 7/00 (2006.01); H04Q 7/36 (2006.01); H04W 56/00 (2009.01); H04W 92/00 (2009.01)
CPC (source: EP)
H04B 3/54 (2013.01); H04J 3/0658 (2013.01)
Citation (search report)
See references of WO 9959052A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 9959052 A1 19991118; AU 4400899 A 19991129; CA 2331963 A1 19991118; CN 1309786 A 20010822; EP 1078314 A1 20010228; JP 2002514877 A 20020521; SE 512034 C2 20000117; SE 9801631 D0 19980511; SE 9801631 L 19991112
DOCDB simple family (application)
SE 9900613 W 19990416; AU 4400899 A 19990416; CA 2331963 A 19990416; CN 99808517 A 19990416; EP 99927008 A 19990416; JP 2000548796 A 19990416; SE 9801631 A 19980511