WO2001099330A1 - Procede de synchronisation du mode d'emission et de reception d'emetteurs et de recepteurs dans un reseau de telecommunication destine a la mise en oeuvre de ce procede - Google Patents
Procede de synchronisation du mode d'emission et de reception d'emetteurs et de recepteurs dans un reseau de telecommunication destine a la mise en oeuvre de ce procede Download PDFInfo
- Publication number
- WO2001099330A1 WO2001099330A1 PCT/DE2001/001375 DE0101375W WO0199330A1 WO 2001099330 A1 WO2001099330 A1 WO 2001099330A1 DE 0101375 W DE0101375 W DE 0101375W WO 0199330 A1 WO0199330 A1 WO 0199330A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- time
- signal
- receiver
- transmitter
- transmitters
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
-
- 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
- H04B7/2687—Inter base stations synchronisation
- H04B7/2696—Over the air autonomous synchronisation, e.g. by monitoring network activity
-
- 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
- H04J3/0679—Clock or time synchronisation in a network by determining clock distribution path in a network
Definitions
- At least one transmitter first sends signal pulses with a predefinable and identical width and a predefinable and identical clock rate. In most cases, however, several transmitters send such signal pulses, and the transmission can still be random and unsynchronized.
- the predeterminable period of time from the time t 0 could comprise at least one complete period of the signal pulse sequence sent by the at least one transmitter. Otherwise the determination of the time ⁇ could fail.
- Fig. 1 the relative timing of the reception time window to the transmitter signal pulses is shown in a schematic representation. Three situations are shown, the middle situation showing the greatest overlap between reception time windows and transmitter signal pulses. The first and the third situation show time-shifted and thus unsynchronized time slots. The size of the blackened areas shows the degree of synchronization. 2 shows the received power P as a function of the received time window variation ⁇ t in a diagram. At time ⁇ ⁇ there is extensive synchronization. The blackened areas in the diagram correspond to the blackened areas in FIG. 1.
- the method according to the invention is an auto-synchronization method in which the subscribers in a telecommunication network synchronize successively by repeatedly using the method.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU62029/01A AU6202901A (en) | 2000-06-19 | 2001-04-09 | Method for synchronising the transmitting and receiving modes of transmitters and receivers in a telecommunications network for carrying out this method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10029176.7 | 2000-06-19 | ||
DE10029176 | 2000-06-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001099330A1 true WO2001099330A1 (fr) | 2001-12-27 |
Family
ID=7645618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/001375 WO2001099330A1 (fr) | 2000-06-19 | 2001-04-09 | Procede de synchronisation du mode d'emission et de reception d'emetteurs et de recepteurs dans un reseau de telecommunication destine a la mise en oeuvre de ce procede |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU6202901A (fr) |
WO (1) | WO2001099330A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1416648A1 (fr) * | 2002-10-28 | 2004-05-06 | Siemens Aktiengesellschaft | Procédé de synchronisation décentralisée dans un système de communication radio auto-organisant |
EP1744472A1 (fr) * | 2005-07-13 | 2007-01-17 | NTT DoCoMo, Inc. | Dispositif et Procédé de synchronisation d'un premiere dispositif d'émission et de réception à un deuxième dispositif d'émission et de réception |
EP1852998A1 (fr) * | 2006-05-02 | 2007-11-07 | NTT DoCoMo Inc. | Appareil et procédé pour synchroniser un premier dispositif émetteur ou récepteur à un autre dispositif émetteur ou récepteur |
Citations (3)
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 |
US6028853A (en) * | 1996-06-07 | 2000-02-22 | Telefonaktiebolaget Lm Ericsson | Method and arrangement for radio communication |
US6061343A (en) * | 1996-10-17 | 2000-05-09 | Telefonaktiebolaget Lm Ericsson | Method and device to determine the transmission point in time of a first transfer in relation to another transfer in a radio medium |
-
2001
- 2001-04-09 WO PCT/DE2001/001375 patent/WO2001099330A1/fr active Search and Examination
- 2001-04-09 AU AU62029/01A patent/AU6202901A/en not_active Abandoned
Patent Citations (3)
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 |
US6028853A (en) * | 1996-06-07 | 2000-02-22 | Telefonaktiebolaget Lm Ericsson | Method and arrangement for radio communication |
US6061343A (en) * | 1996-10-17 | 2000-05-09 | Telefonaktiebolaget Lm Ericsson | Method and device to determine the transmission point in time of a first transfer in relation to another transfer in a radio medium |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1416648A1 (fr) * | 2002-10-28 | 2004-05-06 | Siemens Aktiengesellschaft | Procédé de synchronisation décentralisée dans un système de communication radio auto-organisant |
WO2004038959A1 (fr) * | 2002-10-28 | 2004-05-06 | Siemens Aktiengesellschaft | Procede de synchronisation decentralisee dans un systeme de communication radio auto-organise |
US7400894B2 (en) | 2002-10-28 | 2008-07-15 | Siemens Aktiengesellschaft | Method for decentralized synchronization in a self-organizing radio communication system |
EP1744472A1 (fr) * | 2005-07-13 | 2007-01-17 | NTT DoCoMo, Inc. | Dispositif et Procédé de synchronisation d'un premiere dispositif d'émission et de réception à un deuxième dispositif d'émission et de réception |
EP1852998A1 (fr) * | 2006-05-02 | 2007-11-07 | NTT DoCoMo Inc. | Appareil et procédé pour synchroniser un premier dispositif émetteur ou récepteur à un autre dispositif émetteur ou récepteur |
Also Published As
Publication number | Publication date |
---|---|
AU6202901A (en) | 2002-01-02 |
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