ATE441984T1 - System und verfahren zum korrigieren des taktdriftens und zum aufrechterhalten der synchronisation in drahtlosen netzwerken - Google Patents

System und verfahren zum korrigieren des taktdriftens und zum aufrechterhalten der synchronisation in drahtlosen netzwerken

Info

Publication number
ATE441984T1
ATE441984T1 AT03742411T AT03742411T ATE441984T1 AT E441984 T1 ATE441984 T1 AT E441984T1 AT 03742411 T AT03742411 T AT 03742411T AT 03742411 T AT03742411 T AT 03742411T AT E441984 T1 ATE441984 T1 AT E441984T1
Authority
AT
Austria
Prior art keywords
clock
wireless networks
clock drift
maintaining synchronization
correcting clock
Prior art date
Application number
AT03742411T
Other languages
English (en)
Inventor
John Belcea
Original Assignee
Meshnetworks Inc
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 Meshnetworks Inc filed Critical Meshnetworks Inc
Application granted granted Critical
Publication of ATE441984T1 publication Critical patent/ATE441984T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • 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
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • 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
    • H04J3/0685—Clock or time synchronisation in a node; Intranode synchronisation
    • H04J3/0697—Synchronisation in a packet node
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Small-Scale Networks (AREA)
AT03742411T 2002-07-05 2003-07-03 System und verfahren zum korrigieren des taktdriftens und zum aufrechterhalten der synchronisation in drahtlosen netzwerken ATE441984T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/188,982 US7072432B2 (en) 2002-07-05 2002-07-05 System and method for correcting the clock drift and maintaining the synchronization of low quality clocks in wireless networks
PCT/US2003/020909 WO2004006493A1 (en) 2002-07-05 2003-07-03 A system and method for correcting the clock drift and maintaining the synchronization in wireless networks

Publications (1)

Publication Number Publication Date
ATE441984T1 true ATE441984T1 (de) 2009-09-15

Family

ID=29999584

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03742411T ATE441984T1 (de) 2002-07-05 2003-07-03 System und verfahren zum korrigieren des taktdriftens und zum aufrechterhalten der synchronisation in drahtlosen netzwerken

Country Status (9)

Country Link
US (1) US7072432B2 (de)
EP (1) EP1520365B1 (de)
JP (1) JP4224025B2 (de)
KR (1) KR20050025582A (de)
AT (1) ATE441984T1 (de)
AU (1) AU2003281454A1 (de)
CA (1) CA2490258A1 (de)
DE (1) DE60329102D1 (de)
WO (1) WO2004006493A1 (de)

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US7072432B2 (en) 2006-07-04
DE60329102D1 (de) 2009-10-15
AU2003281454A1 (en) 2004-01-23
JP4224025B2 (ja) 2009-02-12
WO2004006493A1 (en) 2004-01-15
EP1520365A1 (de) 2005-04-06
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US20040005902A1 (en) 2004-01-08
JP2005536919A (ja) 2005-12-02

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