AT515452A3 - Zeitsynchronisation in einem Satellitennetzwerk - Google Patents

Zeitsynchronisation in einem Satellitennetzwerk Download PDF

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Publication number
AT515452A3
AT515452A3 ATA50905/2014A AT509052014A AT515452A3 AT 515452 A3 AT515452 A3 AT 515452A3 AT 509052014 A AT509052014 A AT 509052014A AT 515452 A3 AT515452 A3 AT 515452A3
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AT
Austria
Prior art keywords
branch
value
rtc
ncr
office
Prior art date
Application number
ATA50905/2014A
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English (en)
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AT515452B1 (de
AT515452A2 (de
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Vt Idirect 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 Vt Idirect Inc filed Critical Vt Idirect Inc
Publication of AT515452A2 publication Critical patent/AT515452A2/de
Publication of AT515452A3 publication Critical patent/AT515452A3/de
Application granted granted Critical
Publication of AT515452B1 publication Critical patent/AT515452B1/de

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18517—Transmission equipment in earth stations
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
    • G01S19/235—Calibration of receiver components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18578—Satellite systems for providing broadband data service to individual earth stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Electric Clocks (AREA)
  • Computing Systems (AREA)
  • Radio Relay Systems (AREA)

Abstract

Ein Außenstellengerät enthält einen Außenstellen-Uhrenoszillator mit einer verhältnismäßig geringen Präzision, einen Empfänger, der Zeitpakete empfängt, die periodisch vom Zentralstellengerät aus über den Satellit übertragen werden, wobei jedes Zeitpaket einen Zentralstellen- Echtzeituhr(RTC)-Wert und einen Zentralstellen-Netzwerkuhrreferenz(NCR)- Wert aufweist, einen Außenstellen-RTC-Zähler, der einen Außenstellen-RTCWert an der Außenstelle darstellt, einen Außenstellen-NCR-Zähler, der einen Außenstellen-NCR-Wert an der Außenstelle darstellt, und Verarbeitungsschaltungen, die den Zentralstellen-RTC-Wert und den Zentralstellen-NCR-Wert aus einem aktuellen Zeitpaket extrahieren, Inhalte des aktuellen Zeitpakets mit Inhalten eines zuvor empfangenen Zeitpakets vergleichen und den Außenstellen-RTC-Zähler auf Basis des Ergebnisses des Vergleichs anpassen, um den Außenstellen-RTC-Wert an der Außenstelle mit dem Zentralstellen-RTC-Wert zu synchronisieren.
ATA50905/2014A 2013-12-13 2014-12-15 Zeitsynchronisation in einem Satellitennetzwerk AT515452B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201361915918P 2013-12-13 2013-12-13

Publications (3)

Publication Number Publication Date
AT515452A2 AT515452A2 (de) 2015-09-15
AT515452A3 true AT515452A3 (de) 2019-12-15
AT515452B1 AT515452B1 (de) 2020-03-15

Family

ID=53680097

Family Applications (1)

Application Number Title Priority Date Filing Date
ATA50905/2014A AT515452B1 (de) 2013-12-13 2014-12-15 Zeitsynchronisation in einem Satellitennetzwerk

Country Status (2)

Country Link
US (1) US9544079B2 (de)
AT (1) AT515452B1 (de)

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EP3189610B1 (de) * 2014-09-04 2020-06-03 Telefonaktiebolaget LM Ericsson (publ) Kommunikationsnetzwerkknoten und darin durchgeführte verfahren
KR101596756B1 (ko) * 2014-11-03 2016-03-07 현대자동차주식회사 리던던트 그랜드마스터를 이용한 차량 내 네트워크 시간 동기화 제공 방법 및 장치
EP3059865B1 (de) * 2015-02-20 2018-10-31 STMicroelectronics Srl Verfahren und vorrichtung zur uhrenkalibrierung, zugehörige vorrichtung
US10349367B2 (en) * 2015-03-03 2019-07-09 Qualcomm Incorporated Methods and systems for synchronizing devices
US10298344B1 (en) * 2015-03-06 2019-05-21 Marvell International Ltd. Systems and methods for indicating when frames egress a PHY module of a network device
CN105680933B (zh) * 2016-03-28 2018-10-30 南京南瑞集团公司 一种基于北斗的低功耗双向非实时通信方法
CN105954771B (zh) * 2016-04-18 2018-07-10 上海华测导航技术股份有限公司 基于gnss接收机拨号过程的统计方法
US10530468B2 (en) * 2016-10-19 2020-01-07 Vector Launch Inc. State transfer among virtualized nodes in spaceborne or airborne systems
US10805001B2 (en) 2016-10-19 2020-10-13 Lockheed Martin Corporation State transfer among spaceborne and airborne devices
FR3062538B1 (fr) 2017-02-02 2020-07-03 Thales Procede et systeme pour transporter des signaux dans un systeme satellitaire
US10491710B2 (en) 2017-07-19 2019-11-26 Vector Launch Inc. Role-specialization in spaceborne and airborne computing platforms
US10749959B2 (en) 2018-02-09 2020-08-18 Lockheed Martin Corporation Distributed storage management in a spaceborne or airborne environment
JP6879235B2 (ja) * 2018-03-13 2021-06-02 日本電信電話株式会社 時刻同期システム、管理装置、時刻同期方法およびプログラム
KR102670403B1 (ko) * 2018-10-12 2024-05-30 한국전자통신연구원 양방향 위성통신 네트워크에서 gps 및 ncr 기반 혼용 망동기 방법 및 장치
CN110401504B (zh) * 2019-05-21 2021-05-28 广州天链通信科技有限公司 一种基于tdma的卫星通信系统时间同步方法
PH12021552935A1 (en) 2019-05-22 2022-07-25 Vit Tall Llc Multi-clock synchronization in power grids
CN111541582B (zh) * 2020-04-09 2020-12-29 清华大学 卫星网络容量计算方法、装置和电子设备
CN115428534B (zh) * 2020-05-21 2025-01-24 Oppo广东移动通信有限公司 一种传输时钟信息的方法、终端设备及网络设备
US11616587B1 (en) * 2020-11-30 2023-03-28 Meta Platforms, Inc. Remote clock synchronization using network communication and satellite signals
US11502764B2 (en) * 2020-12-28 2022-11-15 Skyworks Solutions, Inc. FSYNC mismatch tracking
CN113708876B (zh) * 2021-08-24 2023-04-11 四川安迪科技实业有限公司 低轨卫星tdma通信系统的前向链路时间同步方法
US20230113968A1 (en) * 2021-09-27 2023-04-13 International Business Machines Corporation Network clock management via data servers
US12457034B2 (en) 2023-04-28 2025-10-28 Hughes Network Systems, Llc Enhanced clock frequency control

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030147426A1 (en) * 2002-02-01 2003-08-07 Viasat, Inc. System and method of timing and frequency control in TDM/TDMA networks
US20040136352A1 (en) * 2003-01-13 2004-07-15 Jiang Fu Method and system for generating digital video broadcast (DVB) transport stream from direct satellite system (DSS) transport stream
US7116894B1 (en) * 2002-05-24 2006-10-03 Digeo, Inc. System and method for digital multimedia stream conversion
EP2139168A1 (de) * 2008-06-25 2009-12-30 Thomson Licensing, Inc. Verfahren und Vorrichtung zur Zeitsynchronisation in einem drahtlosen TDMA-Multihop-Netzwerk
US20100034136A1 (en) * 2008-08-11 2010-02-11 Gilat Satellite Networks Ltd. Transparent Mesh Overlay in Hub-Spoke Satellite Networks

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US4882739A (en) * 1988-01-26 1989-11-21 Computer Sports Medicine, Inc. Method for adjusting clocks of multiple data processors to a common time base
WO2005027353A2 (en) * 2003-09-12 2005-03-24 Ems Technologies Canada, Ltd. Hybrid frequency offset estimator
US7215652B1 (en) * 2003-11-26 2007-05-08 Idirect Incorporated Method, apparatus, and system for calculating and making a synchronous burst time plan in a communication network

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030147426A1 (en) * 2002-02-01 2003-08-07 Viasat, Inc. System and method of timing and frequency control in TDM/TDMA networks
US7116894B1 (en) * 2002-05-24 2006-10-03 Digeo, Inc. System and method for digital multimedia stream conversion
US20040136352A1 (en) * 2003-01-13 2004-07-15 Jiang Fu Method and system for generating digital video broadcast (DVB) transport stream from direct satellite system (DSS) transport stream
EP2139168A1 (de) * 2008-06-25 2009-12-30 Thomson Licensing, Inc. Verfahren und Vorrichtung zur Zeitsynchronisation in einem drahtlosen TDMA-Multihop-Netzwerk
US20100034136A1 (en) * 2008-08-11 2010-02-11 Gilat Satellite Networks Ltd. Transparent Mesh Overlay in Hub-Spoke Satellite Networks

Also Published As

Publication number Publication date
US20150215031A1 (en) 2015-07-30
AT515452B1 (de) 2020-03-15
US9544079B2 (en) 2017-01-10
AT515452A2 (de) 2015-09-15

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HC Change of the firm name or firm address

Owner name: ST ENGINEERING IDIRECT, INC., US

Effective date: 20211018

MM01 Lapse because of not paying annual fees

Effective date: 20221215