IN2014MN02416A - - Google Patents

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Publication number
IN2014MN02416A
IN2014MN02416A IN2416MUN2014A IN2014MN02416A IN 2014MN02416 A IN2014MN02416 A IN 2014MN02416A IN 2416MUN2014 A IN2416MUN2014 A IN 2416MUN2014A IN 2014MN02416 A IN2014MN02416 A IN 2014MN02416A
Authority
IN
India
Prior art keywords
hub
polling
clt
approach
furthermore
Prior art date
Application number
Inventor
Bhaskar Udaya
Anita Yezdi
Roy Satyajit
Original Assignee
Hughes Network Systems Llc
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 Hughes Network Systems Llc filed Critical Hughes Network Systems Llc
Publication of IN2014MN02416A publication Critical patent/IN2014MN02416A/en

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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
    • H04B7/204—Multiple access
    • H04B7/2046—SS-TDMA, TDMA satellite switching
    • H04B7/2048—Frame structure, synchronisation or frame acquisition in SS-TDMA systems
    • 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
    • H04B7/18513—Transmission in a satellite or space-based system
    • 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
    • H04B7/204—Multiple access
    • H04B7/212—Time-division multiple access [TDMA]
    • H04B7/2125—Synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Aspects of the invention provide a system and method to allow inroute frame timing synchronization without the aid of hub signal loopback or satellite ephemeris data. Furthermore it allows tracking and compensating of the satellite motion to allow multiple remotes to use TDMA on the inroute frequencies while minimizing the aperture. Two main techniques proposed are CLT and polling based approaches which are used in combination for an optimum solution. In CLT based approach hub transmits remote specific timing correction feedback messages on the outroute on as needed basis. In polling based approach the remotes derive their timing based on a per beam average delay estimate broadcast by the hub and a measured local delay specific to each outroute stream from a remote. An aspect of the invention uses triangulation method to determine satellite position. Furthermore an aspect of the invention uses hub burst arrival method instead of polling approach.
IN2416MUN2014 2012-05-23 2013-05-23 IN2014MN02416A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US13/479,094 US8897206B2 (en) 2012-05-23 2012-05-23 Frame timing synchronization in a geostationary satellite system
US13/538,119 US8711759B2 (en) 2012-05-23 2012-06-29 Frame timing synchronization in a geostationary satellite system
PCT/US2013/042379 WO2013177374A1 (en) 2012-05-23 2013-05-23 Synchronization in a geostationary satellite system

Publications (1)

Publication Number Publication Date
IN2014MN02416A true IN2014MN02416A (en) 2015-08-21

Family

ID=49621544

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2416MUN2014 IN2014MN02416A (en) 2012-05-23 2013-05-23

Country Status (5)

Country Link
US (3) US8897206B2 (en)
EP (1) EP2853043B1 (en)
BR (1) BR112014029314B1 (en)
IN (1) IN2014MN02416A (en)
WO (1) WO2013177374A1 (en)

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ITUB20154134A1 (en) * 2015-10-01 2017-04-01 Univ Degli Studi Dellaquila SYNCHRONIZATION SYSTEM AND METHOD
FR3046313B1 (en) * 2015-12-23 2019-05-31 Thales SOLID SPATIAL DISTRIBUTION SOLUTION FOR CONSTELLATION TELECOM
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CN107566029B (en) * 2017-08-28 2020-04-28 西南电子技术研究所（中国电子科技集团公司第十研究所） Space network on-demand access system
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EP3814804A4 (en) * 2018-05-07 2022-01-26 ATC Technologies, LLC Devices, methods, and systems for uplink synchronization in time division multiple access (tdma) satellite network
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US11589315B2 (en) * 2019-11-22 2023-02-21 Hughes Network Systems, Llc Dynamic resizing of a satellite link outroute or forward channel
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CN113630865A (en) * 2020-05-09 2021-11-09 北京金坤科创技术有限公司 Multi-base-station multi-terminal positioning method
US11595117B2 (en) * 2020-12-30 2023-02-28 Hughes Network Systems, Llc Timing acquisition method for faster beam, gateway, satellite and inter-network handovers
CA3204958A1 (en) * 2021-02-03 2022-08-11 Murali REGUNATHAN Multimodal inroute timing synchronization system
US11490347B2 (en) 2021-02-03 2022-11-01 Hughes Network Systems Multimodal inroute timing synchronization system
CN112837343B (en) * 2021-04-01 2022-12-09 中国船舶重工集团公司第七0九研究所 Low-altitude unmanned-machine prevention and control photoelectric early warning identification method and system based on camera array
KR102661345B1 (en) * 2021-07-16 2024-04-25 에이에스티 앤 사이언스, 엘엘씨 Dynamic time division transmit/receive (DTDD) access for satellite RAN
US20230029644A1 (en) * 2021-07-26 2023-02-02 Hughes Network Systems, Llc Efficient bandwidth utilization for communication systems
CN113708871B (en) * 2021-08-24 2023-04-25 四川安迪科技实业有限公司 Method for estimating time delay of return link of low-orbit satellite TDMA static medium-pass system
CN113708875B (en) * 2021-08-24 2023-04-25 四川安迪科技实业有限公司 Forward link time delay estimation method of low-orbit satellite TDMA communication-in-motion system
CN113708872B (en) * 2021-08-24 2023-04-25 四川安迪科技实业有限公司 Forward link time delay estimation method of low-orbit satellite TDMA static medium-pass system

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Also Published As

Publication number Publication date
US8897206B2 (en) 2014-11-25
BR112014029314B1 (en) 2023-02-28
EP2853043A4 (en) 2016-01-13
US20130315137A1 (en) 2013-11-28
US8711759B2 (en) 2014-04-29
US20130315136A1 (en) 2013-11-28
US9166675B2 (en) 2015-10-20
BR112014029314A2 (en) 2017-06-27
EP2853043B1 (en) 2019-05-01
EP2853043A1 (en) 2015-04-01
WO2013177374A1 (en) 2013-11-28
US20140254474A1 (en) 2014-09-11

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