BR112017020107A2 - método e aparelho para sincronização de tempo ou frequência em sistemas de comunicação via satélite não-geossíncrono - Google Patents

método e aparelho para sincronização de tempo ou frequência em sistemas de comunicação via satélite não-geossíncrono

Info

Publication number
BR112017020107A2
BR112017020107A2 BR112017020107A BR112017020107A BR112017020107A2 BR 112017020107 A2 BR112017020107 A2 BR 112017020107A2 BR 112017020107 A BR112017020107 A BR 112017020107A BR 112017020107 A BR112017020107 A BR 112017020107A BR 112017020107 A2 BR112017020107 A2 BR 112017020107A2
Authority
BR
Brazil
Prior art keywords
satellite
satellite communication
frequency synchronization
user terminals
gateway
Prior art date
Application number
BR112017020107A
Other languages
English (en)
Other versions
BR112017020107B1 (pt
Inventor
John Black Peter
Wu Qiang
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR112017020107A2 publication Critical patent/BR112017020107A2/pt
Publication of BR112017020107B1 publication Critical patent/BR112017020107B1/pt

Links

Classifications

    • 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
    • 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
    • H04B7/01—Reducing phase shift
    • 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
    • H04B7/18502—Airborne stations
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0035—Synchronisation arrangements detecting errors in frequency or phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time

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)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

trata-se de um método e aparelho para sincronização de tempo ou frequência de sinais de rádio transmitidos por terminais de usuário em comunicação com um gateway através de um satélite. o satélite pode ser parte de um sistema de comunicação via satélite não síncrono, tal como um sistema de comunicação via satélite de órbita terrestre baixa (leo) para comunicações de dados, voz ou vídeo. os tempos de transmissão de sinais de rádio de enlace de retorno a partir dos terminais de usuário podem ser ajustados de modo que os sinais cheguem no satélite ou no gateway sem grandes diferenciais de retardo de tempo. as frequências portadoras de sinais de rádio de enlace de retorno transmitidos a partir dos terminais de usuário podem ser ajustadas de modo que os sinais cheguem no satélite ou no gateway sem grandes diferenciais de deslocamento de frequências.
BR112017020107-0A 2015-03-20 2016-03-11 Método e aparelho para controlar um tempo de transmissão e radiofrequência e memória legível por computador BR112017020107B1 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201562136137P 2015-03-20 2015-03-20
US62/136,137 2015-03-20
US14/862,822 US9900856B2 (en) 2015-03-20 2015-09-23 Method and apparatus for time or frequency synchronization in non-geosynchronous satellite communication systems
US14/862,822 2015-09-23
PCT/US2016/022180 WO2016153823A1 (en) 2015-03-20 2016-03-11 Method and apparatus for time or frequency synchronization in non-geosynchronous satellite communication systems

Publications (2)

Publication Number Publication Date
BR112017020107A2 true BR112017020107A2 (pt) 2018-05-29
BR112017020107B1 BR112017020107B1 (pt) 2024-03-05

Family

ID=56923940

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112017020107-0A BR112017020107B1 (pt) 2015-03-20 2016-03-11 Método e aparelho para controlar um tempo de transmissão e radiofrequência e memória legível por computador

Country Status (7)

Country Link
US (1) US9900856B2 (pt)
EP (1) EP3272032A1 (pt)
JP (1) JP2018512786A (pt)
KR (1) KR102449637B1 (pt)
CN (1) CN107408978B (pt)
BR (1) BR112017020107B1 (pt)
WO (1) WO2016153823A1 (pt)

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Also Published As

Publication number Publication date
KR102449637B1 (ko) 2022-09-29
US9900856B2 (en) 2018-02-20
BR112017020107B1 (pt) 2024-03-05
JP2018512786A (ja) 2018-05-17
US20160278033A1 (en) 2016-09-22
KR20170129747A (ko) 2017-11-27
CN107408978A (zh) 2017-11-28
WO2016153823A1 (en) 2016-09-29
WO2016153823A9 (en) 2017-05-11
CN107408978B (zh) 2020-07-07
EP3272032A1 (en) 2018-01-24

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B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

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