MX2016012140A - Aparato y metodo para sincronizacion a nivel de red en multiples sistemas de comunicaciones satelitales de orbita baja terrestre (leo). - Google Patents

Aparato y metodo para sincronizacion a nivel de red en multiples sistemas de comunicaciones satelitales de orbita baja terrestre (leo).

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Publication number
MX2016012140A
MX2016012140A MX2016012140A MX2016012140A MX2016012140A MX 2016012140 A MX2016012140 A MX 2016012140A MX 2016012140 A MX2016012140 A MX 2016012140A MX 2016012140 A MX2016012140 A MX 2016012140A MX 2016012140 A MX2016012140 A MX 2016012140A
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MX
Mexico
Prior art keywords
doppler
leo
network
communications systems
satellite communications
Prior art date
Application number
MX2016012140A
Other languages
English (en)
Other versions
MX357494B (es
Inventor
Ravishankar Channasandra
Arur Deepak
VASAVADA Yash
Parr Michael
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 MX2016012140A publication Critical patent/MX2016012140A/es
Publication of MX357494B publication Critical patent/MX357494B/es

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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
    • 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
    • H04B7/195—Non-synchronous stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • 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

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)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)

Abstract

Se proporciona un enfoque de sincronización que compensa el gran desfase Doppler de los satélites en un sistema de satélite de LEO al explotar la naturaleza predecible y determinista de la componente Doppler, y de esta manera simplifica el retraso y los rangos de incertidumbre en el dominio Doppler que tienen que resolver los receptores de la capa física. La compensación se basa en la información conocida de efemérides del satélite de LEO y las posiciones conocidas de la puerta de enlace (GW) y la terminal de usuario (UT) en el suelo. Utilizando la componente determinista del Doppler de LEO, el proceso de sincronización rastrea y compensa continuamente los desfases variables en el tiempo entre la temporización de trama de la GW y la UT, la numeración de trama (FN), las temporizaciones de símbolo, y la escala inducida por Doppler de la frecuencia central y el ancho de banda de la señal.
MX2016012140A 2014-03-19 2015-03-19 Aparato y metodo para sincronizacion a nivel de red en multiples sistemas de comunicaciones satelitales de orbita baja terrestre (leo). MX357494B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201461955750P 2014-03-19 2014-03-19
PCT/US2015/021615 WO2015143252A1 (en) 2014-03-19 2015-03-19 Apparatus and method for network-level synchronization in multiple low earth orbit (leo) satellite communications systems

Publications (2)

Publication Number Publication Date
MX2016012140A true MX2016012140A (es) 2017-05-01
MX357494B MX357494B (es) 2018-07-11

Family

ID=54143062

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2016012140A MX357494B (es) 2014-03-19 2015-03-19 Aparato y metodo para sincronizacion a nivel de red en multiples sistemas de comunicaciones satelitales de orbita baja terrestre (leo).

Country Status (6)

Country Link
US (2) US9749035B2 (es)
EP (1) EP3120466B1 (es)
BR (1) BR112016021569B1 (es)
CA (1) CA2970923C (es)
MX (1) MX357494B (es)
WO (1) WO2015143252A1 (es)

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Also Published As

Publication number Publication date
WO2015143252A1 (en) 2015-09-24
US20180013484A1 (en) 2018-01-11
CA2970923C (en) 2021-01-12
BR112016021569A2 (pt) 2018-07-03
EP3120466A4 (en) 2018-01-17
EP3120466A1 (en) 2017-01-25
US9973264B2 (en) 2018-05-15
CA2970923A1 (en) 2015-09-24
BR112016021569B1 (pt) 2024-02-15
MX357494B (es) 2018-07-11
EP3120466B1 (en) 2021-12-01
US20150270890A1 (en) 2015-09-24
US9749035B2 (en) 2017-08-29

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