BR9506495A - Esração móvel para uso em um sistema de comunicação por satélite com pelo menos uma estação de retransmissão móvel e processo de corrigir uma ferquencia da estação móvel - Google Patents

Esração móvel para uso em um sistema de comunicação por satélite com pelo menos uma estação de retransmissão móvel e processo de corrigir uma ferquencia da estação móvel

Info

Publication number
BR9506495A
BR9506495A BR9506495A BR9506495A BR9506495A BR 9506495 A BR9506495 A BR 9506495A BR 9506495 A BR9506495 A BR 9506495A BR 9506495 A BR9506495 A BR 9506495A BR 9506495 A BR9506495 A BR 9506495A
Authority
BR
Brazil
Prior art keywords
mobile station
mobile
signal
frequency
station
Prior art date
Application number
BR9506495A
Other languages
English (en)
Inventor
Paul W Dent
Original Assignee
Ericsson Ge Mobile 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 Ericsson Ge Mobile Inc filed Critical Ericsson Ge Mobile Inc
Publication of BR9506495A publication Critical patent/BR9506495A/pt

Links

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
    • H04B7/18513—Transmission in a satellite or space-based system
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • 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
    • H04B7/204—Multiple access
    • H04B7/208—Frequency-division multiple access [FDMA]

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)
BR9506495A 1994-09-14 1995-09-01 Esração móvel para uso em um sistema de comunicação por satélite com pelo menos uma estação de retransmissão móvel e processo de corrigir uma ferquencia da estação móvel BR9506495A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/305,784 US5742908A (en) 1994-09-14 1994-09-14 Frequency error correction in a satellite-mobile communications system
PCT/US1995/012411 WO1996008882A1 (en) 1994-09-14 1995-09-01 Frequency error correction in a satellite-mobile communications system

Publications (1)

Publication Number Publication Date
BR9506495A true BR9506495A (pt) 1997-10-07

Family

ID=23182331

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9506495A BR9506495A (pt) 1994-09-14 1995-09-01 Esração móvel para uso em um sistema de comunicação por satélite com pelo menos uma estação de retransmissão móvel e processo de corrigir uma ferquencia da estação móvel

Country Status (11)

Country Link
US (1) US5742908A (pt)
EP (1) EP0728385B1 (pt)
JP (1) JPH09510067A (pt)
CN (1) CN1090849C (pt)
AT (1) ATE325471T1 (pt)
AU (1) AU693272B2 (pt)
BR (1) BR9506495A (pt)
CA (1) CA2174938A1 (pt)
DE (1) DE69534971T2 (pt)
FI (1) FI962027A (pt)
WO (1) WO1996008882A1 (pt)

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KR100401123B1 (ko) * 2000-12-27 2003-10-10 한국전자통신연구원 비 정지궤도 이동통신 시스템에서의 도플러 천이 주파수보상 방법
FR2819356B1 (fr) * 2001-01-05 2004-06-04 Thomson Csf Procede et dispositif pour compenser des erreurs de mesure dues a une derive d'une horloge de reference
CN1729405A (zh) * 2002-05-17 2006-02-01 摩托罗拉公司(在特拉华州注册的公司) 在通信定位设备中的频率管理
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US7459984B2 (en) * 2005-05-26 2008-12-02 Sirf Technology Holdings, Inc. Method and apparatus for self-calibration and adaptive temperature compensation in GPS receivers
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US7957343B2 (en) * 2008-03-06 2011-06-07 Qualcomm Incorporated Motion-aware mobile time and frequency tracking
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KR20130028397A (ko) 2011-09-09 2013-03-19 삼성전자주식회사 무선 통신 시스템에서 동기 및 시스템 정보 획득을 위한 장치 및 방법
US8842043B2 (en) 2011-12-23 2014-09-23 Delphi Technologies, Inc. Methods to extend the frequency lock range of a received RF signal using a preamble-based frequency estimate
US9548744B2 (en) 2014-08-18 2017-01-17 Qualcomm Incorporated Compensating for hysteretic characteristics of crystal oscillators
KR20160099897A (ko) * 2015-02-13 2016-08-23 한국전자통신연구원 지구국 통신 장치 및 전송 주파수 대역 할당 방법
CN105610752A (zh) * 2015-12-28 2016-05-25 休斯网络技术有限公司 用于高铁或飞机vsat宽带卫星通信的多普勒补偿方法
NL2021054B1 (en) 2018-06-04 2019-12-11 Hiber B V Modem-Satellite transmission with Doppler correction and E-SSA demodulation
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Also Published As

Publication number Publication date
EP0728385A1 (en) 1996-08-28
FI962027A0 (fi) 1996-05-13
CN1090849C (zh) 2002-09-11
MX9601558A (es) 1998-06-30
AU3729695A (en) 1996-03-29
EP0728385B1 (en) 2006-05-03
JPH09510067A (ja) 1997-10-07
CN1135813A (zh) 1996-11-13
DE69534971D1 (de) 2006-06-08
US5742908A (en) 1998-04-21
FI962027A (fi) 1996-05-13
ATE325471T1 (de) 2006-06-15
WO1996008882A1 (en) 1996-03-21
AU693272B2 (en) 1998-06-25
DE69534971T2 (de) 2007-01-04
CA2174938A1 (en) 1996-03-21

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]