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AU2001278896A1 - Satellite communications system using multiple earth stations - Google Patents

Satellite communications system using multiple earth stations

Info

Publication number
AU2001278896A1
AU2001278896A1 AU2001278896A AU7889601A AU2001278896A1 AU 2001278896 A1 AU2001278896 A1 AU 2001278896A1 AU 2001278896 A AU2001278896 A AU 2001278896A AU 7889601 A AU7889601 A AU 7889601A AU 2001278896 A1 AU2001278896 A1 AU 2001278896A1
Authority
AU
Australia
Prior art keywords
satellites
communications system
satellite communications
earth stations
multiple earth
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2001278896A
Inventor
Paul Dent
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ericsson Inc
Original Assignee
Ericsson 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 Inc filed Critical Ericsson Inc
Publication of AU2001278896A1 publication Critical patent/AU2001278896A1/en
Abandoned legal-status Critical Current

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
    • H04B7/18515—Transmission equipment in satellites or space-based relays

Landscapes

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

Abstract

Satellites (100a,100b) provide good coverage of mobile terminal service regions and ground stations (200) can communicate with all satellites if there is an unobstructed view. The ground stations allow a mobile terminal to be connected to a network as near as possible to the other party and feeder link antennas (201) are oriented towards the satellites for transmitting feeder link signals to the satellites in the up-link frequency band. Independent claims are included for a method for communicating between plural satellites and for a method of transmitting signals from a ground station to a satellite.
AU2001278896A 2000-07-26 2001-07-09 Satellite communications system using multiple earth stations Abandoned AU2001278896A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/616,637 US6823170B1 (en) 2000-07-26 2000-07-26 Satellite communications system using multiple earth stations
US09616637 2000-07-26
PCT/US2001/021802 WO2002009318A2 (en) 2000-07-26 2001-07-09 Satellite communications system using multiple earth stations

Publications (1)

Publication Number Publication Date
AU2001278896A1 true AU2001278896A1 (en) 2002-02-05

Family

ID=24470354

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001278896A Abandoned AU2001278896A1 (en) 2000-07-26 2001-07-09 Satellite communications system using multiple earth stations

Country Status (7)

Country Link
US (2) US6823170B1 (en)
EP (2) EP1303927B1 (en)
CN (2) CN1210893C (en)
AT (2) ATE353496T1 (en)
AU (1) AU2001278896A1 (en)
DE (2) DE60126521D1 (en)
WO (1) WO2002009318A2 (en)

Families Citing this family (156)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7227850B2 (en) * 2001-04-04 2007-06-05 Telefonaktiebolaget Lm Ericsson (Publ) Cellular radio communication system with frequency reuse
US7603081B2 (en) * 2001-09-14 2009-10-13 Atc Technologies, Llc Radiotelephones and operating methods that use a single radio frequency chain and a single baseband processor for space-based and terrestrial communications
US7062267B2 (en) * 2001-09-14 2006-06-13 Atc Technologies, Llc Methods and systems for modifying satellite antenna cell patterns in response to terrestrial reuse of satellite frequencies
US7006789B2 (en) * 2001-09-14 2006-02-28 Atc Technologies, Llc Space-based network architectures for satellite radiotelephone systems
US20030119470A1 (en) * 2001-12-21 2003-06-26 Persico Charles J. Generating local oscillator signals for downconversion
US20030134635A1 (en) * 2002-01-11 2003-07-17 Lane Daniel R. Intermediate frequency transponded payload implementation
US7292547B1 (en) * 2002-05-22 2007-11-06 The Directv Group, Inc. Device and method for nodal multiple access into communications channels
US6937857B2 (en) 2002-05-28 2005-08-30 Mobile Satellite Ventures, Lp Systems and methods for reducing satellite feeder link bandwidth/carriers in cellular satellite systems
MXPA05000102A (en) * 2002-06-24 2005-06-06 Qualcomm Inc Method for return link sychronisation in an orthogonal cdma satellite system.
US20040072561A1 (en) * 2002-10-15 2004-04-15 Laprade James Nicholas Direct-to-home-and-mobile satellite internet service
US7826870B2 (en) * 2003-04-22 2010-11-02 Raytheon Company Separating mixed signals in a cellular environment
JP3946666B2 (en) * 2003-05-23 2007-07-18 シャープ株式会社 Low noise block down converter and satellite broadcast receiver
DE10328570B4 (en) * 2003-06-25 2005-08-25 Infineon Technologies Ag Method for reducing the radiation load by a mobile radio terminal with directional radiation and mobile radio terminal with directional radiation
FR2857524B1 (en) * 2003-07-11 2005-09-23 Cit Alcatel AMPLIFICATION DEVICE FOR SATELLITE
US7643438B2 (en) * 2003-08-28 2010-01-05 Alcatel-Lucent Usa Inc. Method of determining random access channel preamble detection performance in a communication system
US20050050130A1 (en) * 2003-09-02 2005-03-03 Dabak Anand G. Ranging in multi-band OFDM communications systems
FR2860648B1 (en) * 2003-10-03 2006-02-24 Agence Spatiale Europeenne MULTI-BEAM COMMUNICATION SATELLITE ANTENNA HAVING FAULT COMPENSATION
US7509144B2 (en) * 2003-12-18 2009-03-24 Vt Idirect, Inc. Scalable communication system, method and apparatus
US8380186B2 (en) * 2004-01-22 2013-02-19 Atc Technologies, Llc Satellite with different size service link antennas and radioterminal communication methods using same
CA2568422C (en) * 2004-05-26 2013-07-23 Wireless Extenders, Inc. Wireless repeater implementing low-level oscillation detection and protection for a duplex communication system
US7502587B2 (en) * 2004-05-28 2009-03-10 Echostar Technologies Corporation Method and device for band translation
FR2871635B1 (en) * 2004-06-14 2006-09-08 Alcatel Sa TERRESTRIAL REPEATER WITH REDISTRIBUTION OF PSEUDO-RANDOM CODES ON DIFFERENT CARRIERS OF FREQUENCIES
JP4492264B2 (en) * 2004-09-13 2010-06-30 株式会社日立製作所 Quadrature detector and quadrature demodulator and sampling quadrature demodulator using the same
WO2006055648A2 (en) * 2004-11-16 2006-05-26 Atc Technologies, Llc Satellite communications systems, components and methods for operating shared satellite gateways
CA2588192C (en) 2005-01-05 2015-06-23 Atc Technologies, Llc Adaptive beam forming with multi-user detection and interference reduction in satellite communication systems and methods
KR100673406B1 (en) * 2005-01-26 2007-01-24 아태위성산업 주식회사 Satellite communication device and method mounted on land mobile phone
US7738837B2 (en) 2005-02-22 2010-06-15 Atc Technologies, Llc Satellites using inter-satellite links to create indirect feeder link paths
US20060198436A1 (en) * 2005-02-23 2006-09-07 Sam Cowan Bandwidth reduction by one half
US20060208945A1 (en) * 2005-02-28 2006-09-21 James Kolanek Space / time / polarization adaptive antenna for ESM / ELINT receivers
US7627285B2 (en) * 2005-03-14 2009-12-01 Atc Technologies, Llc Satellite communications systems and methods with distributed and/or centralized architecture including ground-based beam forming
WO2006099501A1 (en) * 2005-03-15 2006-09-21 Atc Technologies, Llc Methods and systems providing adaptive feeder links for ground based beam forming and related systems and satellites
US8132214B2 (en) 2008-04-03 2012-03-06 Echostar Technologies L.L.C. Low noise block converter feedhorn
US7970345B2 (en) * 2005-06-22 2011-06-28 Atc Technologies, Llc Systems and methods of waveform and/or information splitting for wireless transmission of information to one or more radioterminals over a plurality of transmission paths and/or system elements
US7474262B2 (en) * 2005-07-01 2009-01-06 Delphi Technologies, Inc. Digital beamforming for an electronically scanned radar system
US7526321B2 (en) * 2005-12-08 2009-04-28 Accton Technology Corporation Wireless network apparatus and method of channel allocation for respective radios
US20070155318A1 (en) * 2006-01-04 2007-07-05 Globalstar, Inc. Satellite communication system employing a combination of time slots and orthogonal codes
US7714780B2 (en) * 2006-03-10 2010-05-11 Broadcom Corporation Beamforming RF circuit and applications thereof
US7728766B2 (en) * 2006-03-30 2010-06-01 Itt Manufacturing Enterprises, Inc. Optimized beamforming for satellite communication
US9014619B2 (en) * 2006-05-30 2015-04-21 Atc Technologies, Llc Methods and systems for satellite communications employing ground-based beam forming with spatially distributed hybrid matrix amplifiers
CN101098183B (en) * 2006-06-30 2012-04-25 中国科学院空间科学与应用研究中心 System for monitoring ionosphere scintillation and interference
JP4952135B2 (en) * 2006-08-17 2012-06-13 富士通株式会社 Wireless terminal, relay station, wireless base station, and communication method
US8538323B2 (en) * 2006-09-26 2013-09-17 Viasat, Inc. Satellite architecture
EP2645597B2 (en) 2006-09-26 2024-03-06 ViaSat, Inc. Improved spot beam satellite systems
US8107875B2 (en) 2006-09-26 2012-01-31 Viasat, Inc. Placement of gateways near service beams
US7817101B2 (en) * 2006-10-24 2010-10-19 Com Dev International Ltd. Dual polarized multifilar antenna
EP2087623B1 (en) * 2006-11-03 2010-07-14 RF Magic, Inc. Satellite signal frequency translation and stacking
WO2008118529A2 (en) * 2007-01-30 2008-10-02 Georgia Tech Research Corporation Methods for polarization-based interference mitigation
US8098612B2 (en) * 2007-05-21 2012-01-17 Spatial Digital Systems, Inc. Apparatus and method for remote beam forming for satellite broadcasting systems
US7834807B2 (en) * 2007-05-21 2010-11-16 Spatial Digital Systems, Inc. Retro-directive ground-terminal antenna for communication with geostationary satellites in slightly inclined orbits
US20090161797A1 (en) * 2007-06-08 2009-06-25 Cowles Philip R Satellite detection of automatic identification system signals
US7876865B2 (en) * 2007-06-08 2011-01-25 COM DEV International Ltd System and method for decoding automatic identification system signals
KR100932897B1 (en) * 2007-07-13 2009-12-21 한국전자통신연구원 Apparatus and method for executing remote command of geostationary satellite, apparatus and method for verifying remote command execution for satellite control system
CN101102127B (en) * 2007-07-31 2010-05-19 南京中网通信有限公司 Application method of power modem in emergent communication
US7639171B2 (en) 2007-09-27 2009-12-29 Delphi Technologies, Inc. Radar system and method of digital beamforming
US8497743B2 (en) * 2007-12-24 2013-07-30 Telefonaktiebolaget L M Ericsson (Publ) Passive fourier transform circuits and butler matrices
US8625659B2 (en) * 2008-01-10 2014-01-07 Viasat, Inc. Receiver-based frequency response estimation
FR2928510B1 (en) * 2008-03-04 2011-07-29 Thales Sa SYSTEM FOR FORMING BEAMS WITH DIGITAL TRANSMISSION GROUND-BASED PROCESSING
JP5260131B2 (en) * 2008-04-28 2013-08-14 株式会社エヌ・ティ・ティ・ドコモ Base station, mobile station, and common information communication method
CN101345563B (en) * 2008-08-21 2012-10-10 成都九洲电子信息系统股份有限公司 Multi-diversity launching and receiving equipment of mobile digital multimedia broadcasting system
US8489055B2 (en) * 2008-11-14 2013-07-16 Astrium Limited Active interference suppression in a satellite communication system
GB0820902D0 (en) * 2008-11-14 2008-12-24 Astrium Ltd Active interference suppression in a satellite communication system
US8355470B1 (en) * 2009-05-05 2013-01-15 Rockwell Collins, Inc. Digital polarization correction for DBS systems
US8780788B2 (en) 2009-09-25 2014-07-15 Com Dev International Ltd. Systems and methods for decoding automatic identification system signals
JP4801194B2 (en) * 2009-09-25 2011-10-26 大学共同利用機関法人自然科学研究機構 Low frequency signal light transmission system and low frequency signal light transmission method
US8346162B1 (en) * 2009-09-25 2013-01-01 Emc Satcom Technologies System and method for reducing VSAT apertures via satellite MIMO
US9236934B1 (en) 2009-10-16 2016-01-12 Viasat, Inc. Satellite system architecture for coverage areas of disparate demand
EP2312767A1 (en) * 2009-10-16 2011-04-20 Astrium Limited Broadcast content requests
US8843594B2 (en) 2010-03-26 2014-09-23 Dan Fiul Time shifted transcoded streaming (TSTS) system and method
US8699545B2 (en) 2010-04-08 2014-04-15 Comtech Ef Data Corp. Embedded meta-carrier with code progression message reassembly
US8755425B2 (en) * 2010-06-30 2014-06-17 Comtech Ef Data Corp. Method and system for transmission of identification via metadata for repeating relays using spread-spectrum technology
FR2960364B1 (en) * 2010-05-21 2013-03-29 Thales Sa SATELLITE TELECOMMUNICATION SYSTEM HAVING MECHANISM FOR SEPARATING MESSAGES ISSUED BY A PLURALITY OF TRANSMITTERS
US9331774B2 (en) 2010-06-09 2016-05-03 Exactearth Ltd. Systems and methods for segmenting a satellite field of view for detecting radio frequency signals
US9088346B2 (en) 2010-06-30 2015-07-21 Comtech Ef Data Corp. System and method for a broadcast recovery carrier channel for static and dynamic carrier systems
CN101964448A (en) * 2010-08-27 2011-02-02 中国科学院上海微系统与信息技术研究所 Satellite-borne multi-beam phased-array antenna capable of realizing on-track reconstruction
CN102118818B (en) * 2011-03-03 2013-08-07 北京航空航天大学 Space-based routing forwarding platform and space-based routing exchange system
FR2978889B1 (en) * 2011-08-04 2013-09-20 Centre Nat Etd Spatiales SYSTEM AND METHOD FOR MULTIPLE MANAGEMENT OF TRANSMISSION RESOURCES OF A SPACE RADIO MULTICELLULAR RADIOCOMMUNICATION SYSTEM.
US8989762B1 (en) 2013-12-05 2015-03-24 CBF Networks, Inc. Advanced backhaul services
US9713019B2 (en) * 2011-08-17 2017-07-18 CBF Networks, Inc. Self organizing backhaul radio
CN102307059B (en) * 2011-08-17 2013-12-25 北京大学 Method for forming beam sent from deep space based on periodical downlink time standard signals
US10708918B2 (en) 2011-08-17 2020-07-07 Skyline Partners Technology Llc Electronic alignment using signature emissions for backhaul radios
US10716111B2 (en) 2011-08-17 2020-07-14 Skyline Partners Technology Llc Backhaul radio with adaptive beamforming and sample alignment
US10051643B2 (en) 2011-08-17 2018-08-14 Skyline Partners Technology Llc Radio with interference measurement during a blanking interval
US20220070867A1 (en) * 2011-08-17 2022-03-03 Skyline Partners Technology Llc Backhaul radio with advanced error recovery
US8385305B1 (en) 2012-04-16 2013-02-26 CBF Networks, Inc Hybrid band intelligent backhaul radio
US8467363B2 (en) 2011-08-17 2013-06-18 CBF Networks, Inc. Intelligent backhaul radio and antenna system
US10764891B2 (en) 2011-08-17 2020-09-01 Skyline Partners Technology Llc Backhaul radio with advanced error recovery
US8928542B2 (en) 2011-08-17 2015-01-06 CBF Networks, Inc. Backhaul radio with an aperture-fed antenna assembly
US8761100B2 (en) 2011-10-11 2014-06-24 CBF Networks, Inc. Intelligent backhaul system
US8502733B1 (en) 2012-02-10 2013-08-06 CBF Networks, Inc. Transmit co-channel spectrum sharing
US10548132B2 (en) * 2011-08-17 2020-01-28 Skyline Partners Technology Llc Radio with antenna array and multiple RF bands
US9015567B2 (en) 2012-04-12 2015-04-21 Com Dev International Ltd. Methods and systems for consistency checking and anomaly detection in automatic identification system signal data
US8948747B2 (en) 2013-02-13 2015-02-03 The Boeing Company Overlapping cells for wireless coverage
US9293820B2 (en) 2013-03-13 2016-03-22 The Boeing Company Compensating for a non-ideal surface of a reflector in a satellite communication system
US9608862B2 (en) 2013-03-15 2017-03-28 Elwha Llc Frequency accommodation
US9491637B2 (en) * 2013-03-15 2016-11-08 Elwha Llc Portable wireless node auxiliary relay
US9681311B2 (en) 2013-03-15 2017-06-13 Elwha Llc Portable wireless node local cooperation
US9793596B2 (en) 2013-03-15 2017-10-17 Elwha Llc Facilitating wireless communication in conjunction with orientation position
CN103199910B (en) * 2013-04-24 2015-10-28 清华大学 One is base beamformed transmission system and method in a distributed manner
US9490893B2 (en) * 2013-09-26 2016-11-08 The Boeing Company Interference suppression in a satellite communication system using onboard beamforming and ground-based processing
US20160204853A1 (en) * 2014-05-15 2016-07-14 Leosat, Llc System and method for satellite routing of data
PT3143706T (en) * 2014-05-15 2020-04-24 Leosat Llc System and method for satellite routing of data
CN105630582B (en) * 2014-11-15 2019-07-19 航天恒星科技有限公司 Method and system for handling conflict of receiving resources in satellite ground station
CN104320176B (en) * 2014-11-21 2017-08-29 中国电子科技集团公司第三十八研究所 A kind of satellite communication system and its forward direction Calibration Method
CN104320177B (en) * 2014-11-21 2017-11-24 中国电子科技集团公司第三十八研究所 A kind of satellite communication system and its back Calibration Method
CN105897353A (en) * 2014-12-15 2016-08-24 中国空间技术研究院 Integrated test device
KR101772739B1 (en) * 2014-12-23 2017-08-29 한국과학기술원 Method for rf beamforming, and apparatuses operating the same
CN104683993B (en) * 2015-02-09 2018-05-29 清华大学 Satellite and land domain collaborative multi communication system
US10641901B2 (en) * 2015-03-20 2020-05-05 Qualcomm Incorporated Autonomous satellite automatic gain control
US9900856B2 (en) 2015-03-20 2018-02-20 Qualcomm Incorporated Method and apparatus for time or frequency synchronization in non-geosynchronous satellite communication systems
CN107431494B (en) * 2015-03-25 2020-06-26 华为技术有限公司 Communication receiver apparatus and communication method
HUE059239T2 (en) 2015-04-08 2022-11-28 Stanford Res Inst Int 1d phased array antenna for radar and communications
US10128939B2 (en) 2015-04-10 2018-11-13 Viasat, Inc. Beamformer for end-to-end beamforming communications system
US10187141B2 (en) 2015-04-10 2019-01-22 Viasat, Inc. Cross-band system for end-to-end beamforming
PE20180586A1 (en) * 2015-04-10 2018-04-05 Viasat Inc SATELLITES AND SYSTEMS FOR THE TRAINING OF BEAM FROM END TO END
US10512021B2 (en) 2015-09-08 2019-12-17 Kepler Communications Inc. System and method for providing continuous communications access to satellites in geocentric, non-geosynchronous orbits
CA3006500C (en) * 2015-11-27 2023-08-08 Telesat Canada Satellite system and method for global coverage
BR122020025335B1 (en) * 2015-12-31 2024-02-06 Viasat, Inc SATELLITE COMMUNICATION SYSTEM
SG10201912197YA (en) * 2016-01-13 2020-02-27 Viasat Inc Cross-band system and satellite for end-to-end beamforming
US10182117B2 (en) * 2016-01-28 2019-01-15 Tejas Networks Limited Method and system for transmitting data from telemetry devices to eNodeB over wireless communication network
CN105721042A (en) * 2016-03-02 2016-06-29 天津凯普卫星导航通信技术有限公司 Satellite communication system applicable to small ships
WO2017156449A1 (en) * 2016-03-11 2017-09-14 SEAKR Engineering, Inc. Improving power efficiency in beamforming rf systems
US9960827B2 (en) * 2016-04-14 2018-05-01 Raytheon Company Analog multiple beam feed systems and methods
CN105955896B (en) * 2016-04-27 2019-09-20 南京大学 A reconfigurable DBF algorithm hardware accelerator and control method
CN105790812B (en) * 2016-04-29 2018-08-31 中国人民解放军国防科学技术大学 It is a kind of to receive system and method using the ground station signals enhancing of spaced antenna battle array
CN105915264B (en) * 2016-05-20 2018-05-22 中国电子科技集团公司第十研究所 The method of the double spread-spectrum code signals of multiplexing SMA links
US10368251B1 (en) 2016-07-25 2019-07-30 SpaceWorks Enterprises, Inc. Satellites and satellite-based systems for ground-to-space short-burst data communications
US10084536B1 (en) 2016-08-25 2018-09-25 Star Mesh LLC Radio system using satellites
WO2018042252A2 (en) * 2016-08-31 2018-03-08 Horizon Technologies Consultants, Ltd. Satellite telephone monitoring
AU2017345760B2 (en) * 2016-10-21 2022-03-03 Viasat, Inc. Ground-based beamformed communications using mutually synchronized spatially multiplexed feeder links
CN106533537B (en) * 2016-11-14 2019-12-13 上海微小卫星工程中心 The Method of Injecting Remote Control Commands from Ground Station into Satellites
JP7323941B2 (en) * 2017-08-28 2023-08-09 マイリオタ ピーティーワイ エルティーディー Systems and methods for predicting communication link quality
US10085200B1 (en) * 2017-09-29 2018-09-25 Star Mesh LLC Radio system using nodes with high gain antennas
US10698099B2 (en) 2017-10-18 2020-06-30 Leolabs, Inc. Randomized phase and amplitude radar codes for space object tracking
US10291316B1 (en) 2017-12-11 2019-05-14 Star Mesh LLC Data transmission systems and methods using satellite-to-satellite radio links
US10921427B2 (en) 2018-02-21 2021-02-16 Leolabs, Inc. Drone-based calibration of a phased array radar
EP3537627A1 (en) * 2018-03-06 2019-09-11 Eutelsat S.A. Method for adaptive demodulation and system implementing such a method
AU2019301682B2 (en) 2018-07-12 2024-11-07 Star Mesh LLC Communications systems and methods with stochastically distributed orbiting satellites
EP4075685B1 (en) 2018-10-12 2024-04-03 OQ Technology S.à r.l. Method and system for non-terrestrial cellular wireless communication networks
EP3874789A1 (en) * 2018-11-02 2021-09-08 FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. Terrestrial or non-terrestrial wireless communication systems
CN109471138B (en) * 2019-01-11 2023-01-31 西安雷擎电子科技有限公司 Method for synthesizing multimode satellite navigation signal
US11378685B2 (en) 2019-02-27 2022-07-05 Leolabs, Inc. Systems, devices, and methods for determining space object attitude stabilities from radar cross-section statistics
SG11202110913VA (en) 2019-04-16 2021-10-28 Viasat Inc Past event signal tracking
US11870543B2 (en) 2020-05-18 2024-01-09 Star Mesh LLC Data transmission systems and methods for low earth orbit satellite communications
CN111930025B (en) * 2020-08-06 2024-05-31 北京中科晶上科技股份有限公司 Modeling and simulation method and device for satellite communication system simulation platform
CN112019253A (en) * 2020-08-10 2020-12-01 航天科工空间工程发展有限公司 Ground line feeder test system and method based on low-earth-orbit satellite communication
CN112104411B (en) * 2020-11-10 2021-04-06 四川九洲电器集团有限责任公司 Low-orbit satellite communication-oriented access satellite selection device and method
US11968023B2 (en) 2020-12-02 2024-04-23 Star Mesh LLC Systems and methods for creating radio routes and transmitting data via orbiting and non-orbiting nodes
CN112399450B (en) * 2020-12-11 2023-06-16 中国联合网络通信集团有限公司 A method and device for interference assessment
JPWO2022176893A1 (en) * 2021-02-19 2022-08-25
CN113556168B (en) * 2021-07-19 2023-04-28 电子科技大学 CDMA transmission method for multiple intelligent reflecting surfaces
CN113783591A (en) * 2021-08-20 2021-12-10 北京邮电大学 Precoding method, communication system and apparatus for multiple multi-beam satellite communication
CN113991289A (en) * 2021-08-31 2022-01-28 北京控制工程研究所 High-stability control method based on motion of satellite antenna driving mechanism
CA3230905A1 (en) * 2021-09-09 2023-03-16 Kumud Patel Multi-band radiofrequency transceiver
CN114355388B (en) * 2021-12-30 2023-04-07 浙江时空道宇科技有限公司 Dual-frequency transmitting assembly and system for low-earth-orbit satellite navigation enhancement system
CN117220755B (en) * 2023-10-10 2024-04-09 中国科学院国家空间科学中心 End-to-end communication link system of self-adaptive switching communication satellite
CN117687056B (en) * 2024-02-02 2024-05-07 齐鲁卫星技术(山东)有限责任公司 Communication and electronic signal satellite-ground joint positioning method based on differential time difference

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54143009A (en) 1978-04-28 1979-11-07 Kokusai Denshin Denwa Co Ltd Space diversity system for tdma communication system
US5390245A (en) 1990-03-09 1995-02-14 Telefonaktiebolaget L M Ericsson Method of carrying out an authentication check between a base station and a mobile station in a mobile radio system
US5091942A (en) 1990-07-23 1992-02-25 Ericsson Ge Mobile Communications Holding, Inc. Authentication system for digital cellular communications
US5668837A (en) 1993-10-14 1997-09-16 Ericsson Inc. Dual-mode radio receiver for receiving narrowband and wideband signals
US5619503A (en) 1994-01-11 1997-04-08 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
US5790606A (en) 1994-01-11 1998-08-04 Ericsson Inc. Joint demodulation using spatial maximum likelihood
US5619210A (en) 1994-04-08 1997-04-08 Ericsson Inc. Large phased-array communications satellite
US5642358A (en) 1994-04-08 1997-06-24 Ericsson Inc. Multiple beamwidth phased array
JP3193833B2 (en) 1994-07-25 2001-07-30 ケイディーディーアイ株式会社 Motion vector processor
AU706242B2 (en) 1994-12-12 1999-06-10 Ericsson Inc. Diversity-oriented channel allocation in a mobile communications system
US5533023A (en) * 1994-12-16 1996-07-02 Stanford Telecommunications, Inc. Practical means for dynamic allocation of individual demodulators to a multiplicity of received RF signals
IL112233A (en) 1995-01-03 1998-02-22 State Rafaelel Ministry Of Def Adaptive polarization diversity system
US5966102A (en) * 1995-12-14 1999-10-12 Ems Technologies, Inc. Dual polarized array antenna with central polarization control
US5878093A (en) 1996-12-16 1999-03-02 Ericsson Inc. Interference rejection combining with frequency correction
US5903549A (en) * 1997-02-21 1999-05-11 Hughes Electronics Corporation Ground based beam forming utilizing synchronized code division multiplexing
US6104935A (en) 1997-05-05 2000-08-15 Nortel Networks Corporation Down link beam forming architecture for heavily overlapped beam configuration
US6005515A (en) 1999-04-09 1999-12-21 Trw Inc. Multiple scanning beam direct radiating array and method for its use

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US20040259497A1 (en) 2004-12-23
US7305211B2 (en) 2007-12-04
CN1625078A (en) 2005-06-08
WO2002009318A3 (en) 2002-06-13
EP1303927A2 (en) 2003-04-23
US6823170B1 (en) 2004-11-23
EP1303927B1 (en) 2005-05-11
ATE353496T1 (en) 2007-02-15
WO2002009318A2 (en) 2002-01-31
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CN1210893C (en) 2005-07-13
EP1482659B1 (en) 2007-02-07

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