EA201991901A1 - Способ и устройство для осуществления связи между космическим летательным аппаратом, работающим на орбите, и наземными телекоммуникационными устройствами, которые используют связь с наземной базовой станцией - Google Patents

Способ и устройство для осуществления связи между космическим летательным аппаратом, работающим на орбите, и наземными телекоммуникационными устройствами, которые используют связь с наземной базовой станцией

Info

Publication number
EA201991901A1
EA201991901A1 EA201991901A EA201991901A EA201991901A1 EA 201991901 A1 EA201991901 A1 EA 201991901A1 EA 201991901 A EA201991901 A EA 201991901A EA 201991901 A EA201991901 A EA 201991901A EA 201991901 A1 EA201991901 A1 EA 201991901A1
Authority
EA
Eurasian Patent Office
Prior art keywords
orbit
terrestrial
transceiver
mobile station
communication
Prior art date
Application number
EA201991901A
Other languages
English (en)
Inventor
Тайге Роберт Спейдел
Эндрю Гербер
Original Assignee
Линк Глобал, Инк.
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 Линк Глобал, Инк. filed Critical Линк Глобал, Инк.
Publication of EA201991901A1 publication Critical patent/EA201991901A1/ru

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/204Multiple access
    • H04B7/212Time-division multiple access [TDMA]
    • H04B7/2125Synchronisation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851Systems using a satellite or space-based relay
    • H04B7/18515Transmission equipment in satellites or space-based relays
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851Systems using a satellite or space-based relay
    • H04B7/18513Transmission in a satellite or space-based system
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/18521Systems of inter linked satellites, i.e. inter satellite service
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18532Arrangements for managing transmission, i.e. for transporting data or a signalling message
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/18578Satellite systems for providing broadband data service to individual earth stations
    • H04B7/1858Arrangements for data transmission on the physical system, i.e. for data bit transmission between network components
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/18578Satellite systems for providing broadband data service to individual earth stations
    • H04B7/18582Arrangements for data linking, i.e. for data framing, for error recovery, for multiple access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/19Earth-synchronous stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/195Non-synchronous stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/204Multiple access
    • H04B7/212Time-division multiple access [TDMA]
    • H04B7/2121Channels assignment to the different stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/204Multiple access
    • H04B7/212Time-division multiple access [TDMA]
    • H04B7/2121Channels assignment to the different stations
    • H04B7/2123Variable assignment, e.g. demand assignment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/0035Synchronisation arrangements detecting errors in frequency or phase
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/004Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045Synchronisation 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)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)

Abstract

Приемопередатчик множественного доступа осуществляет связь с мобильными станциями в среде, условия которой превышают расчетные условия мобильной станции, без необходимости модернизации мобильных станций. Одна такая среда находится на орбите Земли. Приемопередатчик множественного доступа выполнен с возможностью осуществления связи с мобильными станциями с одновременным превышением расчетных условий работы мобильной станции, таких как большее расстояние, большее относительное перемещение и/или другие условия, обычно существующие там, где функции наземного приемопередатчика должны выполняться орбитальным приемопередатчиком. Орбитальный приемопередатчик может содержать анализатор данных, который выполняет синтаксический анализ структуры данных фрейма, блок синхронизации сигналов, который корректирует синхронизацию на основании нахождения на орбите до соответствия наземным задержкам распространения, преобразователь частоты и программируемое радиооборудование, выполненное с возможностью связи с орбиты Земли с использованием протокола множественного доступа, так что связь является совместимой со связью между наземной сотовой базовой станцией и наземной мобильной станцией или выглядит как связь между наземной сотовой базовой станцией и наземной мобильной станцией.
EA201991901A 2017-03-02 2018-02-28 Способ и устройство для осуществления связи между космическим летательным аппаратом, работающим на орбите, и наземными телекоммуникационными устройствами, которые используют связь с наземной базовой станцией EA201991901A1 (ru)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201762465945P 2017-03-02 2017-03-02
US201762490298P 2017-04-26 2017-04-26
US15/857,073 US20180254825A1 (en) 2017-03-02 2017-12-28 Method and apparatus for handling communications between spacecraft operating in an orbital environment and terrestrial telecommunications devices that use terrestrial base station communications
PCT/US2018/020205 WO2018160682A1 (en) 2017-03-02 2018-02-28 Method and apparatus for handling communications between spacecraft operating in an orbital environment and terrestrial telecommunications devices

Publications (1)

Publication Number Publication Date
EA201991901A1 true EA201991901A1 (ru) 2020-01-28

Family

ID=63355925

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201991901A EA201991901A1 (ru) 2017-03-02 2018-02-28 Способ и устройство для осуществления связи между космическим летательным аппаратом, работающим на орбите, и наземными телекоммуникационными устройствами, которые используют связь с наземной базовой станцией

Country Status (10)

Country Link
US (1) US20180254825A1 (ru)
EP (2) EP3574614A4 (ru)
JP (3) JP7029478B2 (ru)
KR (2) KR102112345B1 (ru)
CN (3) CN110582992B (ru)
AU (3) AU2018227806B2 (ru)
CA (2) CA3054931C (ru)
EA (1) EA201991901A1 (ru)
IL (1) IL268968B (ru)
WO (2) WO2018160682A1 (ru)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180254825A1 (en) * 2017-03-02 2018-09-06 UbiquitiLink, Inc. Method and apparatus for handling communications between spacecraft operating in an orbital environment and terrestrial telecommunications devices that use terrestrial base station communications
US10742311B2 (en) * 2017-03-02 2020-08-11 Lynk Global, Inc. Simplified inter-satellite link communications using orbital plane crossing to optimize inter-satellite data transfers
US10084535B1 (en) 2017-04-26 2018-09-25 UbiquitiLink, Inc. Method and apparatus for handling communications between spacecraft operating in an orbital environment and terrestrial telecommunications devices that use terrestrial base station communications
US10863547B2 (en) * 2017-11-09 2020-12-08 Qualcomm Incorporated Adapting timing advance for multiple RACH transmission in backhaul networks
US10727965B2 (en) 2017-11-21 2020-07-28 Western Digital Technologies, Inc. System and method for time stamp synchronization
US10719100B2 (en) * 2017-11-21 2020-07-21 Western Digital Technologies, Inc. System and method for time stamp synchronization
US10959201B2 (en) * 2018-04-05 2021-03-23 Qualcomm Incorporated Techniques for initial access in wireless systems
US10951305B2 (en) 2018-04-26 2021-03-16 Lynk Global, Inc. Orbital base station filtering of interference from terrestrial-terrestrial communications of devices that use protocols in common with orbital-terrestrial communications
WO2020051508A1 (en) 2018-09-06 2020-03-12 Lynk Global, Inc. Cellular core network and radio access network infrastructure and management in space
US10841890B2 (en) 2018-11-09 2020-11-17 SRS Space Limited Delay tolerant node
CN111225450B (zh) * 2018-11-26 2022-05-13 华为技术有限公司 适用于卫星通信的随机接入方法和装置
US11917696B2 (en) * 2019-03-01 2024-02-27 Nec Corporation Control device, control method, non-transitory computer-readable medium, and communication system
GB2582136B (en) * 2019-03-11 2022-08-03 Airspan Ip Holdco Llc Timing adjustment within a wireless communication system for a moving vehicle
CN109977576A (zh) * 2019-04-03 2019-07-05 北京理工大学 一种基于代理模型的卫星星座系统多学科设计优化方法
CN114845375A (zh) * 2019-04-23 2022-08-02 华为技术有限公司 一种通信方法、终端、网络设备及存储介质
CN110557169B (zh) * 2019-07-24 2022-01-04 西安空间无线电技术研究所 一种基于跳频跳时定位授时功能的低轨移动通信卫星系统
NL2023820B1 (nl) * 2019-09-12 2021-05-17 Nedap Nv Systeem voor het bepalen van posities van een veelvoud van labels.
US11563484B2 (en) * 2020-02-28 2023-01-24 Qualcomm Incorporated Uplink frequency and timing compensation in a non-terrestrial network
US11659599B2 (en) * 2020-04-28 2023-05-23 Qualcomm Incorporated Random access preamble transmission timing offset
CN112073287B (zh) * 2020-08-20 2022-04-12 湖南三一智能控制设备有限公司 数据传输装置、控制方法、传输方法和tcp服务装置
JP7502685B2 (ja) 2020-12-24 2024-06-19 日本電信電話株式会社 無線通信システム、中継装置、無線通信方法及びプログラム
WO2022150518A1 (en) 2021-01-06 2022-07-14 Lynk Global, Inc. Satellite communication system transmitting navigation signals using a wide beam and data signals using a directive beam
EP4087158A1 (en) 2021-05-05 2022-11-09 Mitsubishi Electric R&D Centre Europe B.V. Timing advance acquisition for leo systems
US11848747B1 (en) * 2021-06-04 2023-12-19 Apple Inc. Multiple user access channel
EP4371247A2 (en) 2021-07-16 2024-05-22 AST & Science, LLC Dynamic time division duplex (dtdd) access for satellite ran
WO2023216112A1 (en) * 2022-05-10 2023-11-16 Huawei Technologies Co., Ltd. Methods and apparatus for sensing-assisted doppler compensation
CN114630366B (zh) * 2022-05-17 2023-05-09 深圳传音控股股份有限公司 控制方法、通信设备及存储介质
US20230412263A1 (en) * 2022-06-15 2023-12-21 Satelles, Inc. Low cost, size, weight, and power (cswap) geolocation capability utilizing signal characteristics passed through to backhaul network
FR3139690A1 (fr) 2022-09-14 2024-03-15 Universite de Bordeaux Transmission Bluetooth d’un satellite vers un terminal de télécommunication au sol
CN115549760B (zh) * 2022-09-19 2024-07-26 航天宏图信息技术股份有限公司 一种卫星网络安全分析方法和系统

Family Cites Families (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349398A (en) * 1964-08-27 1967-10-24 Itt Satellite communication system
JPH04207529A (ja) * 1990-11-30 1992-07-29 Toshiba Corp 衛星通信方式
US6101177A (en) 1992-03-30 2000-08-08 Telefonaktiebolaget Lm Ericsson Cell extension in a cellular telephone system
US5740164A (en) * 1993-02-09 1998-04-14 Teledesic Corporation Traffic routing for satellite communication system
JPH0787424B2 (ja) * 1993-06-30 1995-09-20 日本電気株式会社 バースト信号送信システム
US5943324A (en) * 1994-01-11 1999-08-24 Ericsson, Inc. Methods and apparatus for mobile station to mobile station communications in a mobile satellite communication system
US5467345A (en) * 1994-05-31 1995-11-14 Motorola, Inc. Packet routing system and method therefor
WO1996019049A1 (en) 1994-12-12 1996-06-20 Ericsson Inc. Diversity-oriented channel allocation in a mobile communications system
US5642355A (en) 1995-09-29 1997-06-24 Telefonaktiebolaget Lm Ericsson Method of supporting extended range in a TDMA system
US5661724A (en) * 1995-12-18 1997-08-26 Ericsson Inc. Satellite diversity scheme
US6226493B1 (en) * 1996-05-31 2001-05-01 Motorola, Inc. Geosynchronous satellite communication system and method
US6404769B1 (en) * 1996-06-26 2002-06-11 Motorola, Inc. Directional routing of packets in a satellite network
US5978653A (en) * 1997-05-02 1999-11-02 Motorola, Inc. Method and apparatus for providing additional resources in a satellite communication system
US6307840B1 (en) * 1997-09-19 2001-10-23 Qualcomm Incorporated Mobile station assisted timing synchronization in CDMA communication system
US6008758A (en) * 1998-05-26 1999-12-28 Rockwell International Corporation Method and apparatus for Doppler compensation in a satellite communications system
US6553225B1 (en) 1999-02-03 2003-04-22 Wei Zhao Apparatus and method for positioning single-offset zones in a spot beam coverage area to maximize call duration in a satellite-based communications network
GB2347828B (en) * 1999-03-05 2004-05-19 Internat Mobile Satellite Orga Communication methods and apparatus
US7139324B1 (en) * 2000-06-02 2006-11-21 Nokia Networks Oy Closed loop feedback system for improved down link performance
CN1119909C (zh) * 2000-09-29 2003-08-27 华为技术有限公司 一种全球移动通信系统的基站收发信机
GB2379581B (en) 2001-09-11 2005-08-31 Nec Technologies Apparatus and method of compensation for signal time-of-arrival variation in a UMTS handset
JP2003134022A (ja) 2001-10-22 2003-05-09 Mitsubishi Electric Corp 衛星通信システムにおけるドップラーシフト補償装置及びその方法
US7257371B1 (en) * 2003-11-26 2007-08-14 Idirect Incorporated Method, apparatus, and system for using a synchronous burst time plan in a communication network
US7319878B2 (en) * 2004-06-18 2008-01-15 Qualcomm Incorporated Method and apparatus for determining location of a base station using a plurality of mobile stations in a wireless mobile network
US20050288012A1 (en) * 2004-06-23 2005-12-29 William Morgan Timing compensation method and means for a terrestrial wireless communication system having satelite backhaul link
US7502382B1 (en) * 2004-09-30 2009-03-10 Itt Manufacturing Enterprises, Inc. Method and apparatus for multicast packet distribution in a satellite constellation network
US7515566B2 (en) * 2004-12-09 2009-04-07 Viasat, Inc. Partial mesh communication in hub based system
CN102833685B (zh) * 2005-03-25 2016-01-27 桥扬科技有限公司 用于数据通信的方法和设备以及数据分发设备
US20060246913A1 (en) 2005-04-27 2006-11-02 Merboth Lawrence J Method for handling propagation delay in a wireless communication system
US7574224B2 (en) * 2005-06-13 2009-08-11 Qualcomm Incorporated Methods and apparatus for performing timing synchronization with base stations
US7769375B2 (en) 2006-02-09 2010-08-03 Eagle River Holdings Llc System and method for communication utilizing time division duplexing
US8705436B2 (en) * 2006-02-15 2014-04-22 Atc Technologies, Llc Adaptive spotbeam broadcasting, systems, methods and devices for high bandwidth content distribution over satellite
CN101166360A (zh) * 2006-10-18 2008-04-23 明基电通股份有限公司 基站选择方法及其通讯系统
US7742738B2 (en) * 2006-12-27 2010-06-22 Nortel Networks Limited Method and system for diversity using orthogonal frequency/division multiplexing
CN101400136A (zh) * 2007-09-29 2009-04-01 华为技术有限公司 上行数据传输方法及装置、转变间隙配置方法及装置
US8538327B2 (en) * 2010-04-15 2013-09-17 Alcatel Lucent User equipment adjustment of uplink satellite communications
CN102307167B (zh) * 2011-09-22 2015-02-04 京信通信系统(中国)有限公司 调整上行定时提前量的方法、装置及基站系统
KR102127836B1 (ko) * 2012-05-08 2020-06-29 한국전자통신연구원 엘티이기반 이동통신시스템에서 낮은 피에이피알을 가지는 향상된 하향링크 전송 방법
KR102039065B1 (ko) * 2012-05-08 2019-10-31 한국전자통신연구원 큰 셀 반경을 가지는 이동 통신 시스템에서의 랜덤 액세스 방법 및 랜덤 액세스 채널 구조
CN103036607B (zh) * 2012-12-12 2015-02-04 南京邮电大学 一种适用于低轨卫星网络的信道动态预留分配方法
CN103546211B (zh) * 2013-10-31 2016-03-23 中国人民解放军国防科学技术大学 基于时空先验建链信息的空分时分星间链路快速建链方法
CN103905306B (zh) * 2014-04-02 2017-03-15 中国人民解放军西安通信学院 一种适用于geo/leo双层星座网络的路由交换方法
US9763167B2 (en) * 2014-08-03 2017-09-12 Hughes Network Systems, Llc Centralized ground-based route determination and traffic engineering for software defined satellite communications networks
EP3442135B1 (en) * 2014-09-17 2024-10-16 Iridium Satellite LLC Satellite communications networking
US9647749B2 (en) * 2014-09-30 2017-05-09 Google Inc. Satellite constellation
US9491635B2 (en) * 2015-01-13 2016-11-08 Smartsky Networks LLC Architecture for simultaneous spectrum usage by air-to-ground and terrestrial networks
KR20170087303A (ko) * 2016-01-20 2017-07-28 주식회사 푸른밤 출퇴근을 모니터링하기 위한 방법, 시스템 및 비일시성의 컴퓨터 판독 가능 기록 매체
CN105227483A (zh) * 2015-08-21 2016-01-06 北京空间飞行器总体设计部 基于leo卫星网络的低复杂度负载均衡路由算法
US20180254825A1 (en) * 2017-03-02 2018-09-06 UbiquitiLink, Inc. Method and apparatus for handling communications between spacecraft operating in an orbital environment and terrestrial telecommunications devices that use terrestrial base station communications
US10084535B1 (en) * 2017-04-26 2018-09-25 UbiquitiLink, Inc. Method and apparatus for handling communications between spacecraft operating in an orbital environment and terrestrial telecommunications devices that use terrestrial base station communications

Also Published As

Publication number Publication date
AU2023214345A1 (en) 2023-08-31
WO2018222235A2 (en) 2018-12-06
EP3574591A4 (en) 2020-12-16
NZ756976A (en) 2020-11-27
CA3076387A1 (en) 2018-09-07
WO2018222235A3 (en) 2019-01-03
EP3574614A4 (en) 2021-07-28
JP7029478B2 (ja) 2022-03-03
EP3574614A1 (en) 2019-12-04
CN110710135A (zh) 2020-01-17
AU2021240280C1 (en) 2024-05-23
CN110582992A (zh) 2019-12-17
AU2018227806B2 (en) 2021-07-01
US20180254825A1 (en) 2018-09-06
JP2024054144A (ja) 2024-04-16
KR102487683B1 (ko) 2023-01-13
KR20190117783A (ko) 2019-10-16
CN110582992B (zh) 2023-04-14
WO2018160682A1 (en) 2018-09-07
KR20200055160A (ko) 2020-05-20
AU2021240280A1 (en) 2021-10-28
AU2018227806A1 (en) 2019-09-26
CA3054931A1 (en) 2018-09-07
IL268968B (en) 2020-10-29
KR102112345B1 (ko) 2020-05-19
EP3574591A2 (en) 2019-12-04
AU2021240280B2 (en) 2023-05-11
JP2020515202A (ja) 2020-05-21
JP2022078122A (ja) 2022-05-24
IL268968A (en) 2019-10-31
CN110710135B (zh) 2022-02-08
CN116388841A (zh) 2023-07-04
CA3054931C (en) 2021-11-23
WO2018222235A9 (en) 2019-01-24

Similar Documents

Publication Publication Date Title
EA201991901A1 (ru) Способ и устройство для осуществления связи между космическим летательным аппаратом, работающим на орбите, и наземными телекоммуникационными устройствами, которые используют связь с наземной базовой станцией
MX2018003082A (es) Metodo y aparato para uso con un sistema de antenas de radio distribuidas que tiene un canal de control de banda ultra-ancha.
WO2020146506A3 (en) Random access procedure for nr based satellite communication
EP4220974A4 (en) L-PA MID RADIO FREQUENCY DEVICE, RADIO FREQUENCY TRANSMIT-RECEIVE SYSTEM AND COMMUNICATION EQUIPMENT
ATE476797T1 (de) Luftgestützte onboard-basissender-/ - empfängerstation für mobilkommunikation
ATE545218T1 (de) Systeme und verfahren zur terrestrischen wiederverwendung eines zellulären satellitenfrequenzspektrums im zeitteilungsduplex-oder im frequenzteilungsduplex-modus
EP4344072A4 (en) RADIO FREQUENCY SYSTEM, ANTENNA SWITCHING METHOD AND COMMUNICATION DEVICE
PH12018501632A1 (en) Narrowband wireless communications cell search
WO2016153823A9 (en) Method and apparatus for time or frequency synchronization in non-geosynchronous satellite communication systems
CY1121308T1 (el) Συστημα κυψελοειδους επικοινωνιας για την μειωση των επιπτωσεων της ραδιενεργειας που εκπεμπεται απο τις κεραιες κυψελοειδους επικοινωνιας
EP4254808A4 (en) HIGH FREQUENCY L-PA-MID DEVICE, HIGH FREQUENCY TRANSMITTER-RECEIVE SYSTEM AND COMMUNICATION DEVICE
EP4236225A3 (en) Concurrent wireless communications over licensed and unlicensed spectrum
WO2004098207A3 (ja) 無線中継器
DE60318892D1 (de) Systeme und verfahren für vergrösserte kapazität uen und satelliten-systemen, die terrestrischen empfang von satellitenbandfrequenzen verwenden
MX2011011102A (es) Sistema de localizacion inalambrico autonomo respecto a la red.
WO2006123227A3 (en) Arrangement, system, and method for communicating with aircraft through cellular base station towers
MX2021014381A (es) Metodos y sistemas de redes satelitales y terrestres autoorganizables.
WO2011145857A3 (ko) 단말간 직접 연결 통신 및 단말 릴레이를 위한 단말간 직접 데이터 송수신 방법
WO2010035987A3 (en) Downlink channel transmission method and apparatus and common channel reception method and apparatus in cellular communication system supporting bandwidth scalability
SE9304325D0 (sv) Förfarande och anordning vid ett radiokommunikationssystem
US9497720B2 (en) Apparatus, method and system of synchronizing between wireless communication devices
WO2019143785A1 (en) Frequency re-bander with ue and doppler correction
EP4254812A4 (en) RADIO FREQUENCY TRANSMISSION-RECEIVING SYSTEM AND COMMUNICATION DEVICE
CA2447914A1 (en) Methods and apparatuses for using mobile gps stations to synchronize basestations
EP4258562A4 (en) RADIO FREQUENCY TRANSMITTING-RECEIVING SYSTEM AND COMMUNICATION DEVICE