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WO2019035113A1 - Système intégrant un réseau de satellites de communication avec un réseau cellulaire - Google Patents

Système intégrant un réseau de satellites de communication avec un réseau cellulaire Download PDF

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Publication number
WO2019035113A1
WO2019035113A1 PCT/IL2018/050255 IL2018050255W WO2019035113A1 WO 2019035113 A1 WO2019035113 A1 WO 2019035113A1 IL 2018050255 W IL2018050255 W IL 2018050255W WO 2019035113 A1 WO2019035113 A1 WO 2019035113A1
Authority
WO
WIPO (PCT)
Prior art keywords
communication
satellite
communication unit
cellular
mobile devices
Prior art date
Application number
PCT/IL2018/050255
Other languages
English (en)
Inventor
Doron Rainish
Original Assignee
Satixfy Israel 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 Satixfy Israel Ltd. filed Critical Satixfy Israel Ltd.
Publication of WO2019035113A1 publication Critical patent/WO2019035113A1/fr

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/02—Arrangements for relaying broadcast information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks

Definitions

  • the present disclosure relates to the field of communications and in particularly to communications exchanged in satellite and terrestrial cellular communications systems.
  • a communications satellite is an artificial satellite that relays and amplifies radio telecommunications signals via a transponder; it creates a communication channel between a source transmitter and receivers at different locations on Earth. Communications satellites are used for television, radio, internet and military applications.
  • Wireless communication uses electromagnetic waves to carry signals.
  • the purpose of communications satellites is to relay the signal around the curve of the earth allowing communication between widely separated points.
  • Communications satellites use a wide range of radio and microwave frequencies .
  • SMS Tellite system(s)
  • SLEO Low Earth Orbit
  • MEO Medium Earth Orbit
  • HAP High-Altitude Platforms
  • HALE UAV High-altitude unmanned aerial vehicles
  • phased array antenna referred to hereinbelow, should be understood to encompass any one or more members of a group that consists of electrically steering antennas, including antennas that controlls, on top of the phase of each antenna element, the gain of each element and the delay of each element (which may be referred to as "true time delay”), and the like.
  • base station as used herein throughout the specification and claims, should be understood to encompass any one or more members of a group that consists of a cellular base station, a cellular mini base station, a cellular micro base station, a cellular nano base station, a cellular base station that is optimized to support only broadcast services, and the like.
  • a cellular network or mobile network is a communication network where the last link is wireless.
  • the network is distributed over land areas referred to as "cells", each served by at least one fixed-location transceiver referred to as a base station which provides the associated cells with the network coverage which can be used for transmission of voice, data, etc.
  • these cells When joined together these cells provide radio coverage over a wide geographic area. This enables a large number of portable transceivers (e.g., mobile phones, tablets and laptops) to communicate with each other and with fixed transceivers and telephones anywhere in the network, via the base stations, even if some of the transceivers are moving through more than one cell during transmission.
  • portable transceivers e.g., mobile phones, tablets and laptops
  • Terrestrial networks can enhance satellite communications system availability, efficiency and/or economic viability.
  • it is known that it may be difficult for satellite systems to reliably serve densely populated areas, because satellite signals may be blocked by high-rise structures and/or may not penetrate into buildings.
  • satellite spectrum may be underutilized or unutilized in such areas.
  • a terrestrial relaying can reduce or eliminate this potential problem.
  • an overall hybrid system comprising space-based (i.e., satellite) and terrestrial communications capability
  • space-based i.e., satellite
  • terrestrial communications capability may be increased by the introduction of terrestrial relaying.
  • capacity may be enhanced where it may be mostly needed, i.e., in densely populated urban/industrial/commercial areas. As a result, the overall system may become more effectively.
  • terrestrial relay is described in US 5,937,332. It describes satellite telecommunications repeaters which receive, amplify, and locally retransmit the downlink/uplink signal received from a satellite, thereby increasing an effective downlink/uplink margin in the vicinity of the satellite telecommunications repeater and allowing an increase in the penetration of uplink and downlink signals into buildings, foliage, transportation vehicles, and other objects which can reduce link margin.
  • a method is provided a communication unit configured to be wirelessly connected with a plurality of satellites and a plurality of mobile devices, and wherein the communication unit is adapted to be mounted on an object having unobstructed sky view.
  • mobile devices as used herein through the specification and claims, is used to denote a mobile terminal such as a mobile telephone, a laptop, a tablet, a PDA, and the like.
  • the object having unobstructed sky view is a lamp post.
  • the communication unit is configured to receive traffic from the plurality of satellites over respective satellite links and re ⁇ distributes the received traffic over a terrestrial wireless network (e.g. a cellular network) to the plurality of mobile devices, preferably wherein the mobile devices are physically located at the vicinity of the communication unit .
  • the communication unit comprises a multi-beam antenna for transmitting and receiving communications from a plurality of satellites, a multi-satellite transceiver, equipped with a multi-beam phased array, where each beam points to a different satellite, a manager unit for managing traffic being exchanged between the satellites and the mobile devices, at least one cellular base station module.
  • the at least one cellular base station module is compatible with the 4G/5G cellular standard or higher.
  • the at least one cellular base station module is configured to communicate with a plurality of mobile devices associated therewith that are located at its vicinity using MIMO/ Massive MIMO/ or high frequency multi-beamforming .
  • a communication system comprising at least one communication unit described hereinabove, and at least one communication satellite, and wherein the at least one communication satellite is configured for providing the at least one cellular base station module of the communication unit with control and data channels for conveying communications to and from the cellular network to the communication satellite network.
  • the communication system is further configured to enable re-distribution of broadcast traffic along existing broadcast satellite channels to mobile devices, by obtaining direct access to a plurality of communication channels without being required to convey the broadcasted traffic via a central cellular network entity that is connected to cellular base stations of the cellular network.
  • the system provided comprises a plurality of communication satellites, and wherein broadcast transmissions available from several communication satellites are transferable upon demand to the plurality of mobile devices.
  • FIG. 1 - illustrates an embodiment of the present invention, wherein an integrated system which encompasses both a communication satellite part and a cellular part is depicted;
  • FIG. 2 - demonstrates an embodiment showing a communication unit block diagram, which enables exchanging communications between the communication satellite part and the cellular part of the integrated system of FIG. 1.
  • the underlying concept of the solution provided by the present invention relates to a network that integrates operation of a communication satellite component with that of small cells that provide local coverage, so that the latter may be used for offering cellular services (especially 4G and newer) by cellular service providers.
  • the solution provided by the present invention allows re-distribution of broadcast traffic (e.g. video) from existing broadcast satellite channels to mobile devices such as cellular phones and alike. This in turn enables saving cellular infrastructure as well as bandwidth of the cellular network, by obtaining for example direct access to hundreds or thousands of high resolution video channels, without the need to connect the cellular base stations of the cellular network to a central cellular network entity (e.g. a central network station) .
  • broadcast traffic e.g. video
  • mobile devices such as cellular phones and alike.
  • This enables saving cellular infrastructure as well as bandwidth of the cellular network, by obtaining for example direct access to hundreds or thousands of high resolution video channels, without the need to connect the cellular base stations of the cellular network to
  • FIG. 1 illustrates a schematic view of that concept.
  • System 100 presents a number of communication satellites 110, each of which is configured to communicate with a communication unit 120 mounted in this example on a lamp post 130 (or possibly on any other object having unobstructed sky view as much as possible) .
  • Communication unit 120 is configured to receives traffic from communication satellites 110 over respective satellite links and re-distributes it over the terrestrial network to multiple users 140 that are physically located at the vicinity of communication unit 120.
  • the communications may be exchanged between communication satellites 110 and communication unit 120 for example by using DVB-S2 / DVB-S2X standard (EN 302 307, part I and part II) .
  • FIG. 2 exemplifies an embodiment showing a detailed block diagram of a communication unit which enables exchanging communications between the communication satellite part and the cellular part of the integrated system illustrated in FIG. 1.
  • the exemplified communication unit 200 comprises a multi-beam antenna 210 which operates at any applicable band such as for example Ku/Ka, for transmitting and receiving communications from different communication satellites.
  • a multi-beam antenna 210 which operates at any applicable band such as for example Ku/Ka, for transmitting and receiving communications from different communication satellites.
  • Such an antenna that employs for example a Ku and/or a Ka Band for communicating with geostationary satellite, is capable of working at these frequency ranges without the need of any manual change or handling of the system.
  • Communication unit 200 further comprises a multi- satellite transceiver 220, equipped with a multi-beam phased array, where each beam points to a different communication satellite.
  • the transceiver is connected in this example, via a manager unit 230, to cellular (4G/5G) base stations 240 and 240' (preferably of the fifth generation, 5G) serving the users that are located in their vicinity using MIMO/ Massive MIMO/ or high frequency multi-beamforming .
  • the respective communication satellite serves for providing control and data channels, whereas broadcast transmissions, available from several communication satellites could be transferred to the users (the mobile devices), upon demand, e.g. via 5G EMBS (Enhanced Multimedia Broadcast Service), or by other applicable means such as a broadcast transmitter operative according to a terrestrial video broadcast standard (e.g. DVB-T, DVB-T2, ASTC, ISDB-3, DVB-H etc.)
  • a terrestrial video broadcast standard e.g. DVB-T, DVB-T2, ASTC, ISDB-3, DVB-H etc.
  • the solution provided by the present invention may also apply to Verticals such as multimedia and entertainment, transportation, public safety verticals, IoT in underserved area, by providing services to remotely located base stations, and like, and they should all be understood to be encompassed by within the scope of the present invention.

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

Abstract

La présente invention concerne une unité de communication qui est configurée pour recevoir un trafic provenant d'une pluralité de satellites via des liaisons par satellite respectives et pour redistribuer le trafic reçu sur un réseau cellulaire terrestre à une pluralité de dispositifs mobiles situés au voisinage de l'unité de communication, l'unité de communication étant conçue pour être montée sur un objet ayant une vue de ciel non obstruée, telle qu'un poteau de lampe.
PCT/IL2018/050255 2017-08-16 2018-03-07 Système intégrant un réseau de satellites de communication avec un réseau cellulaire WO2019035113A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762546064P 2017-08-16 2017-08-16
US62/546,064 2017-08-16

Publications (1)

Publication Number Publication Date
WO2019035113A1 true WO2019035113A1 (fr) 2019-02-21

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Cited By (3)

* Cited by examiner, † Cited by third party
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CN115189755A (zh) * 2022-07-12 2022-10-14 联通航美网络有限公司 一种vsat与全网通4g&5g基站的一体机及其操作方法
US11792763B2 (en) * 2020-09-21 2023-10-17 Charter Communications Operating, Llc Wireless station location detection and management
US20240107605A1 (en) * 2018-07-11 2024-03-28 L3Vel, Llc Systems and methods for improving wireless mesh networks

Citations (4)

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US20130053095A1 (en) * 2011-08-31 2013-02-28 Robert Buckle Apparatus, method and system for integrating mobile and satellite phone service
US8897770B1 (en) * 2014-08-18 2014-11-25 Sunlight Photonics Inc. Apparatus for distributed airborne wireless communications
US20140375492A1 (en) * 2011-07-13 2014-12-25 Riverside Research Institute Methods and systems for satellite integrated communications
US20170085003A1 (en) * 2015-07-14 2017-03-23 At&T Intellectual Property I, L.P. Apparatus and methods for communicating utilizing an antenna array

Patent Citations (4)

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US20140375492A1 (en) * 2011-07-13 2014-12-25 Riverside Research Institute Methods and systems for satellite integrated communications
US20130053095A1 (en) * 2011-08-31 2013-02-28 Robert Buckle Apparatus, method and system for integrating mobile and satellite phone service
US8897770B1 (en) * 2014-08-18 2014-11-25 Sunlight Photonics Inc. Apparatus for distributed airborne wireless communications
US20170085003A1 (en) * 2015-07-14 2017-03-23 At&T Intellectual Property I, L.P. Apparatus and methods for communicating utilizing an antenna array

Non-Patent Citations (1)

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Title
EVANS, BARRY ET AL.: "Integration of satellite and terrestrial systems in future multimedia communications", EEE WIRELESS COMMUNICATIONS, vol. 12.5, 24 October 2005 (2005-10-24), pages 72 - 80, XP055570694, Retrieved from the Internet <URL:http://epubs.surrey.ac.uk/1850/1/fulltext.pdf> *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240107605A1 (en) * 2018-07-11 2024-03-28 L3Vel, Llc Systems and methods for improving wireless mesh networks
US12267901B2 (en) * 2018-07-11 2025-04-01 L3Vel, Llc Systems and methods for improving wireless mesh networks
US11792763B2 (en) * 2020-09-21 2023-10-17 Charter Communications Operating, Llc Wireless station location detection and management
US20230413222A1 (en) * 2020-09-21 2023-12-21 Charter Communications Operating, Llc Wireless station location detection and management
CN115189755A (zh) * 2022-07-12 2022-10-14 联通航美网络有限公司 一种vsat与全网通4g&5g基站的一体机及其操作方法
CN115189755B (zh) * 2022-07-12 2023-11-21 联通航美网络有限公司 一种vsat与全网通4g&5g基站的一体机及其操作方法

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