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DE10334431A1 - Time synchronization of mobile stations method e.g. for self organizing radio communication system, involves having mobile station with assigned time reference value and signal, sent by second mobile station - Google Patents

Time synchronization of mobile stations method e.g. for self organizing radio communication system, involves having mobile station with assigned time reference value and signal, sent by second mobile station Download PDF

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Publication number
DE10334431A1
DE10334431A1 DE10334431A DE10334431A DE10334431A1 DE 10334431 A1 DE10334431 A1 DE 10334431A1 DE 10334431 A DE10334431 A DE 10334431A DE 10334431 A DE10334431 A DE 10334431A DE 10334431 A1 DE10334431 A1 DE 10334431A1
Authority
DE
Germany
Prior art keywords
mobile station
reference value
communication system
radio communication
signal
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
DE10334431A
Other languages
German (de)
Other versions
DE10334431B4 (en
Inventor
Andre Ebner
Ruediger Halfmann
Matthias Lott
Hermann Rohling
Egon Schulz
Lars Wischhof
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Corp
Original Assignee
Siemens Corp
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 Corp filed Critical Siemens Corp
Priority to DE10334431A priority Critical patent/DE10334431B4/en
Publication of DE10334431A1 publication Critical patent/DE10334431A1/en
Application granted granted Critical
Publication of DE10334431B4 publication Critical patent/DE10334431B4/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2662—Arrangements for Wireless System Synchronisation
    • H04B7/2671—Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation
    • H04B7/2678—Time synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
    • H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
    • H04W56/007—Open loop measurement
    • H04W56/0075—Open loop measurement based on arrival time vs. expected arrival time
    • 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)
  • Mobile Radio Communication Systems (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Zeitsynchronisation von Mobilstationen in einem selbstorganisierenden Funkkommunikationssystem, bei dem eine erste Mobilstation mit einem zugeordneten ersten Zeitreferenzwert ein von einer zweiten Mobilstation gesendetes Signal empfängt und mit einem entsprechenden Signal der ersten Mobilstation zur Bestimmung eines Zeitversatzes vergleicht. Erfindungsgemäß passt die erste Mobilstation den ihr zugeordneten ersten Zeitreferenzwert zur Zeitsynchronisation nur dann an, wenn der ermittelte Zeitversatz einen negativen Wert aufweist.The invention relates to a method for time synchronization of mobile stations in a self-organizing radio communication system, wherein a first mobile station with an associated first time reference value receives a signal transmitted from a second mobile station and compares it with a corresponding signal of the first mobile station to determine a time offset. According to the invention, the first mobile station adjusts the first time reference value assigned to it for time synchronization only when the determined time offset has a negative value.

DE10334431A 2003-07-28 2003-07-28 Method for time synchronization of mobile stations in a self-organizing radio communication system Expired - Fee Related DE10334431B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10334431A DE10334431B4 (en) 2003-07-28 2003-07-28 Method for time synchronization of mobile stations in a self-organizing radio communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10334431A DE10334431B4 (en) 2003-07-28 2003-07-28 Method for time synchronization of mobile stations in a self-organizing radio communication system

Publications (2)

Publication Number Publication Date
DE10334431A1 true DE10334431A1 (en) 2005-03-10
DE10334431B4 DE10334431B4 (en) 2005-06-16

Family

ID=34177229

Family Applications (1)

Application Number Title Priority Date Filing Date
DE10334431A Expired - Fee Related DE10334431B4 (en) 2003-07-28 2003-07-28 Method for time synchronization of mobile stations in a self-organizing radio communication system

Country Status (1)

Country Link
DE (1) DE10334431B4 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1879421A1 (en) * 2006-07-12 2008-01-16 Sagem Communication S.A. System for direct mobile telephony, and mobile telephone therefor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5363375A (en) * 1993-07-30 1994-11-08 Bell Communications Research, Inc. Method and apparatus for synchronizing timing among radio ports in wireless communications systems using hierarchical scheme
JPH0946762A (en) * 1995-07-27 1997-02-14 Nippon Telegr & Teleph Corp <Ntt> Frame synchronization method between mobile stations

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5363375A (en) * 1993-07-30 1994-11-08 Bell Communications Research, Inc. Method and apparatus for synchronizing timing among radio ports in wireless communications systems using hierarchical scheme
JPH0946762A (en) * 1995-07-27 1997-02-14 Nippon Telegr & Teleph Corp <Ntt> Frame synchronization method between mobile stations

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"1.28 Mops Functionality for UTRA TDD Physical Layer", 3 GPP, Technical Specification Group Radio Access Network, 3G TR 25.928, V4.0.1., März 2001 *
AKAIWA, Y., ANDOH, H., KOHAMA, T.: "Autonomous Decentralized Inter-Base-Station Synchronization for TDMA Microcellular Systems", IEEE Vehicular Technology Conference, May 1991, S. 257-262 *
Japan Abstract zu JP 09046762 A *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1879421A1 (en) * 2006-07-12 2008-01-16 Sagem Communication S.A. System for direct mobile telephony, and mobile telephone therefor
FR2903848A1 (en) * 2006-07-12 2008-01-18 Sagem Comm DIRECT MOBILE TELEPHONY SYSTEM.

Also Published As

Publication number Publication date
DE10334431B4 (en) 2005-06-16

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OP8 Request for examination as to paragraph 44 patent law
8364 No opposition during term of opposition
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee