SG11201803640SA - Method for maintaining signal-to-noise ratio at a user terminal in a satellite system - Google Patents

Method for maintaining signal-to-noise ratio at a user terminal in a satellite system

Info

Publication number
SG11201803640SA
SG11201803640SA SG11201803640SA SG11201803640SA SG11201803640SA SG 11201803640S A SG11201803640S A SG 11201803640SA SG 11201803640S A SG11201803640S A SG 11201803640SA SG 11201803640S A SG11201803640S A SG 11201803640SA SG 11201803640S A SG11201803640S A SG 11201803640SA
Authority
SG
Singapore
Prior art keywords
international
user terminal
noise ratio
satellite
maintaining signal
Prior art date
Application number
SG11201803640SA
Inventor
Melvin Ni
Original Assignee
Worldvu Satellites Ltd
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 Worldvu Satellites Ltd filed Critical Worldvu Satellites Ltd
Publication of SG11201803640SA publication Critical patent/SG11201803640SA/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
    • 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
    • H04B7/18519—Operations control, administration or maintenance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • 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
    • H04B7/2041—Spot beam multiple access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/165—Performing reselection for specific purposes for reducing network power consumption

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Electromagnetism (AREA)
  • Radio Relay Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 20 April 2017 (20.04.2017) WIPOIPCT (10) International Publication Number WO 2017/064676 A1 (51) International Patent Classification: H04B 7/185 (2006.01) (21) International Application Number: PCT/IB2016/056188 (22) International Filing Date: (25) Filing Language: (26) Publication Language 14 October 2016 (14.10.2016) English (30) Priority Data: 62/241,449 14 October 2015 (14.10.2015) US (71) Applicant: WORLDVU SATELLITES LIMITED [GB/US]; 1400 Key Boulevard, Floor A, Arlington, Vir­ ginia 22209 (US). (72) Inventor: NI, Melvin; 10205 Bret Avenue, Cupertino, California 95014 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. English (§4) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: with international search report (Art. 21(3)) (54) Title: METHOD FOR MAINTAINING SIGNAL-TO-NOISE RATIO AT A USER TERMINAL IN A SATELLITE SYSTEM r* j r\ A r!^. ! Tf n O 10' (57) : A system and method for maintaining signal-to-noise ratio when a user terminal switches beams includes a user ter minal that generates beam-pointing information. The beam- pointing information is used either to alter the time at which the user ter minal switches communications from a first beam to a second beam transmitted from a satellite or to adjust the attitude of the satel lite, thereby correcting any error in pointing angle of the beams transmitted from the satellite to the user terminal.
SG11201803640SA 2015-10-14 2016-10-14 Method for maintaining signal-to-noise ratio at a user terminal in a satellite system SG11201803640SA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562241449P 2015-10-14 2015-10-14
PCT/IB2016/056188 WO2017064676A1 (en) 2015-10-14 2016-10-14 Method for maintaining signal-to-noise ratio at a user terminal in a satellite system

Publications (1)

Publication Number Publication Date
SG11201803640SA true SG11201803640SA (en) 2018-06-28

Family

ID=57218956

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201803640SA SG11201803640SA (en) 2015-10-14 2016-10-14 Method for maintaining signal-to-noise ratio at a user terminal in a satellite system

Country Status (9)

Country Link
US (1) US10051547B2 (en)
EP (1) EP3363126A1 (en)
JP (1) JP6695969B2 (en)
KR (1) KR102058673B1 (en)
CN (1) CN108604922B (en)
CA (1) CA3003801C (en)
IL (1) IL258669B (en)
SG (1) SG11201803640SA (en)
WO (1) WO2017064676A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10084536B1 (en) * 2016-08-25 2018-09-25 Star Mesh LLC Radio system using satellites
EP3763059A1 (en) * 2018-03-09 2021-01-13 Isotropic Systems Ltd Dynamic interference reduction for antenna beam tracking systems
US11463980B2 (en) * 2019-02-22 2022-10-04 Huawei Technologies Co., Ltd. Methods and apparatuses using sensing system in cooperation with wireless communication system
US11711140B2 (en) * 2020-12-29 2023-07-25 Hughes Network Systems, Llc Pointing error mitigation
CN113473545B (en) * 2021-07-14 2022-07-12 东方红卫星移动通信有限公司 Data transmission method, QoS guarantee method and system for inter-satellite and feeder link
CN115396009B (en) * 2022-08-23 2023-07-18 北京航空航天大学 Satellite anti-interference method based on beam switching and optimization
CN117214924A (en) * 2023-09-11 2023-12-12 中国人民解放军32039部队 Synchronous satellite multi-beam antenna pointing calibration method and device and electronic equipment

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5439190A (en) * 1991-04-22 1995-08-08 Trw Inc. Medium-earth-altitude satellite-based cellular telecommunications
CN1154022A (en) * 1995-08-23 1997-07-09 环球星有限合伙人公司 Satellite beam steering reference using terrestrial beam steering terminals
US5758260A (en) * 1995-08-23 1998-05-26 Globalstar L.P. Satellite beam steering reference using terrestrial beam steering terminals
US5835847A (en) * 1996-04-02 1998-11-10 Qualcomm Incorporated Pilot signal strength control for a low earth orbiting satellite communications system
JPH1019683A (en) * 1996-06-28 1998-01-23 Hiroshi Nakamura Method and device for certifying existence of electromagnetic ether
CA2554336A1 (en) * 2004-01-26 2005-08-04 Cambridge Positioning Systems Limited Transfer of calibrated time information in a mobile terminal
EP2595131A3 (en) * 2004-11-12 2013-06-12 VFS Technologies Limited Particle detector, system and method related applications
US7667645B2 (en) * 2006-05-25 2010-02-23 The Boeing Company GPS gyro calibration
US8723724B2 (en) 2012-07-18 2014-05-13 Viasat, Inc. Ground assisted satellite antenna pointing system
CN103955138B (en) * 2014-04-15 2016-06-01 北京控制工程研究所 A kind of dynamic middle imaging satellite attitude control method based on increment type drift angle

Also Published As

Publication number Publication date
CA3003801A1 (en) 2017-04-20
CN108604922B (en) 2022-01-11
IL258669A (en) 2018-06-28
EP3363126A1 (en) 2018-08-22
IL258669B (en) 2020-02-27
US20170111845A1 (en) 2017-04-20
WO2017064676A1 (en) 2017-04-20
KR102058673B1 (en) 2019-12-23
KR20180096584A (en) 2018-08-29
CN108604922A (en) 2018-09-28
JP2018536338A (en) 2018-12-06
US10051547B2 (en) 2018-08-14
CA3003801C (en) 2020-07-21
JP6695969B2 (en) 2020-05-20

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