NO996420L - Arrangement for synkronisering av noder i VDSL-systemer - Google Patents
Arrangement for synkronisering av noder i VDSL-systemerInfo
- Publication number
- NO996420L NO996420L NO996420A NO996420A NO996420L NO 996420 L NO996420 L NO 996420L NO 996420 A NO996420 A NO 996420A NO 996420 A NO996420 A NO 996420A NO 996420 L NO996420 L NO 996420L
- Authority
- NO
- Norway
- Prior art keywords
- synchronization
- nodes
- vdsl
- arrangement
- vdsl systems
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/0035—User-machine interface; Control console
-
- 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
- H04J3/0644—External master-clock
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Optical Communication System (AREA)
Abstract
Det beskrives et arrangement for synkronisering av noder i VDSL-systemer, eller nærmere bestemt synkronisering av optiske VDSL-noder (2) som deler en felles del av* en kabel i aksessnettverket mellom abonnentene (3) og den lokale stasjon (1). Oppfinnelsen tilveiebringer en tids- synkronisering mot et eksternt system (7), f.eks. GPS, som gir en tidsreferanse hvorved de forskjellige noder kan synkroniseres. Synkroniseringen reduserer "near end cross talk" mellom VDSL-systemene i de forskjellige noder. Fortrinnsvis så inkluderer en respektiv node en mottaker (6) for et synkroniseringssignal og en indre oscillator med høy stabilitet til å avgi et stabilt klokkesignal.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9702481A SE9702481L (sv) | 1997-06-26 | 1997-06-26 | Arrangemang för synkronisering av noder i VDSL-system |
PCT/SE1998/001115 WO1999000928A2 (en) | 1997-06-26 | 1998-06-10 | Arrangement for synchronization of nodes in vdsl-systems |
Publications (2)
Publication Number | Publication Date |
---|---|
NO996420D0 NO996420D0 (no) | 1999-12-23 |
NO996420L true NO996420L (no) | 2000-02-24 |
Family
ID=20407553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO996420A NO996420L (no) | 1997-06-26 | 1999-12-23 | Arrangement for synkronisering av noder i VDSL-systemer |
Country Status (8)
Country | Link |
---|---|
US (1) | US6731707B1 (no) |
EP (1) | EP0992138B1 (no) |
JP (1) | JP4102892B2 (no) |
DE (1) | DE69807486D1 (no) |
EE (1) | EE9900609A (no) |
NO (1) | NO996420L (no) |
SE (1) | SE9702481L (no) |
WO (1) | WO1999000928A2 (no) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11220439A (ja) * | 1998-01-30 | 1999-08-10 | Fujikura Ltd | 光ファイバ通信回線の同期切替方式 |
ATE345610T1 (de) | 2000-06-16 | 2006-12-15 | Cit Alcatel | Verfahren zur übertragung eines referenztaktsignals |
GB2373400B (en) * | 2001-01-17 | 2003-04-09 | Marconi Comm Ltd | Real time clocks in communications networks |
KR20060007048A (ko) * | 2003-05-07 | 2006-01-23 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 운전자에게 정보를 전달하기 위한 교통 정보 시스템 |
US7738611B2 (en) * | 2006-08-07 | 2010-06-15 | Harris Stratex Networks, Inc. | Remote monitoring and calibration of system reference clock using network timing reference |
CN101848193B (zh) * | 2009-03-27 | 2013-11-06 | 华为技术有限公司 | 网络同步的方法、系统和网络节点 |
US8804748B2 (en) * | 2011-03-31 | 2014-08-12 | Nokia Siemens Networks Ethernet Solutions Ltd. | Hitless node insertion for Ethernet networks |
EP2690805B1 (en) | 2012-07-23 | 2020-05-27 | Lantiq Beteiligungs-GmbH & Co.KG | Spectrum management and timing optimization over multiple distribution points |
FI20135112L (fi) * | 2013-02-05 | 2014-08-06 | Tellabs Oy | Satelliittivastaanotinmoduuli tietoliikennelaitteistoa varten |
US9276678B1 (en) * | 2014-07-23 | 2016-03-01 | Google Inc. | Scalable multi-source GPS signal distribution network |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5245634A (en) * | 1992-03-23 | 1993-09-14 | Motorola, Inc. | Base-site synchronization in a communication system |
US5666330A (en) * | 1994-07-21 | 1997-09-09 | Telecom Solutions, Inc. | Disciplined time scale generator for primary reference clocks |
US5727034A (en) * | 1995-07-26 | 1998-03-10 | Nokia Telecommunications Oy | Apparatus and method for synchronizing base sites individually in a communication system |
FI103307B1 (fi) * | 1997-02-11 | 1999-05-31 | Nokia Telecommunications Oy | Tietoliikenneverkon synkronointi |
US6373834B1 (en) * | 1997-12-19 | 2002-04-16 | Telefonaktiebolaget Lm Ericsson | Synchronization for cellular telecommunications network |
-
1997
- 1997-06-26 SE SE9702481A patent/SE9702481L/ not_active IP Right Cessation
-
1998
- 1998-06-10 US US09/446,120 patent/US6731707B1/en not_active Expired - Lifetime
- 1998-06-10 EE EEP199900609A patent/EE9900609A/xx unknown
- 1998-06-10 WO PCT/SE1998/001115 patent/WO1999000928A2/en active IP Right Grant
- 1998-06-10 DE DE69807486T patent/DE69807486D1/de not_active Expired - Lifetime
- 1998-06-10 JP JP50548399A patent/JP4102892B2/ja not_active Expired - Lifetime
- 1998-06-10 EP EP98929976A patent/EP0992138B1/en not_active Expired - Lifetime
-
1999
- 1999-12-23 NO NO996420A patent/NO996420L/no unknown
Also Published As
Publication number | Publication date |
---|---|
DE69807486D1 (de) | 2002-10-02 |
NO996420D0 (no) | 1999-12-23 |
WO1999000928A2 (en) | 1999-01-07 |
EP0992138A2 (en) | 2000-04-12 |
EP0992138B1 (en) | 2002-08-28 |
SE508460C2 (sv) | 1998-10-05 |
SE9702481L (sv) | 1998-10-05 |
SE9702481D0 (sv) | 1997-06-26 |
JP2002506591A (ja) | 2002-02-26 |
EE9900609A (et) | 2000-08-15 |
WO1999000928A3 (en) | 1999-03-25 |
US6731707B1 (en) | 2004-05-04 |
JP4102892B2 (ja) | 2008-06-18 |
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