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WO2012042297A1 - Application et mise en œuvre de la fourniture d'une couverture mobile pour un convoi en mouvement au moyen d'une liaison satellite de bts à bsc - Google Patents

Application et mise en œuvre de la fourniture d'une couverture mobile pour un convoi en mouvement au moyen d'une liaison satellite de bts à bsc Download PDF

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Publication number
WO2012042297A1
WO2012042297A1 PCT/IB2010/054391 IB2010054391W WO2012042297A1 WO 2012042297 A1 WO2012042297 A1 WO 2012042297A1 IB 2010054391 W IB2010054391 W IB 2010054391W WO 2012042297 A1 WO2012042297 A1 WO 2012042297A1
Authority
WO
WIPO (PCT)
Prior art keywords
satellite
bts
implementation
convoy
moving
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.)
Ceased
Application number
PCT/IB2010/054391
Other languages
English (en)
Inventor
Ali Hamad Ali Nasser Bin Alwan
Mohamed Ali Abdulla Al Hammdi
Nasser Ali Sultan Obaid Abayed Al Ali
Ali Hassan Abdulla Hassan Alqatan Harmoodi
Nasser Ahmed Sultan Humaid Mater Al Suwaidi
Jacob Philip
Abu Baker Mohamed Al Marzooqi
Mohammed Kunju Hameed
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.)
Emirates Telecommunications Corp
Original Assignee
Emirates Telecommunications Corp
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 Emirates Telecommunications Corp filed Critical Emirates Telecommunications Corp
Priority to PCT/IB2010/054391 priority Critical patent/WO2012042297A1/fr
Publication of WO2012042297A1 publication Critical patent/WO2012042297A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18563—Arrangements for interconnecting multiple systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/12—Interfaces between hierarchically different network devices between access points and access point controllers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/005—Moving wireless networks
    • 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

  • GSM Global System for Mobile Communication
  • BTS Base Transceiver Station
  • BSC Base Station Controller
  • the BTS consists of communication equipment for providing wireless communication between customer handset (Mobile Station) and the GSM network.
  • BTS is normally having a huge tower mounted with communication antenna and . associated transmit /receive equipments in an enclosure.
  • Each BTS covers certain fixed ceil area only. In order to have wide coverage, the number of BTS has to be increased. It is not economical to provide more BTS to cover the entire area; hence coverage is designed only for more populated area. When the customer is in the vicinity of this coverage area communication is possible.
  • the signal transmitted by the handset is picked up by the BTS and transmitted back to the GSM network, so as to reach the desired customer at the distant end.
  • the signal transmitted back from the BTS is received by the handset and the comrrrunication link with the distant customer is established.
  • BTS Base Transceiver Station
  • MS mobile station
  • the existing Global System Mobile communication provides the means of communication to people on the move locally and internationally by way of roaming arrangement with different mobile operators across the globe. Coverage is also limited with the individual operator.
  • mobile communication is provided to the subscriber through the same domestic operator either from local or international destinations. No roaming arrangement is required with any other operator.
  • the convoy moving to various locations can access their domestic network by using this system even if there is no coverage by the local GSM.
  • the BTS and the traveller are moving simultaneously and Linked to its parent BSC; irrespective of the location and communication is always made possible.
  • Figure 1 Provision of mobile coverage for a moving convoy using satellite
  • FIG. 1 Equipment arrangement in the limited rack space.
  • FIG. 3 Power supply system circuitry.
  • Figure 4 Physical location of battery bank and inverters in the vehicle.
  • FIG. 1 Power switching arrangement.
  • GSM Global System Mobile communication
  • BTS Base Transceiver Stations
  • BSC Base Station Controllers
  • the new invention provides an effective solution for the above problem and communication is made possible while moving anywhere.
  • the idea is conceived for providing -mobile communication solution for the convoy moving to various destinations.
  • the convoy is always linked to their domestic network operator through a satellite -BTS- to- BSC link.
  • This idea can be utilized to meet the requirement of any potential customer.
  • the technique adopted for providing mobile coverage is based on our expertise in satellite communication and GSM applications. It is decided to combine these technologies together to provide a viable solution on the move.
  • the basic idea is to provide uninterrupted coverage, creating a coverage pattern using a single BTS which is moving with the traveller. This BTS is always linked through satellite to the assigned BSC at the home destination.
  • the mobile coverage is provided to the customer irrespective of his location.
  • the system is capable of transmitting voice /data to the public network through satellite -BTS-to- BSC link.
  • a moving BTS with the traveller is designed in a transportable vehicle.
  • a 4-wheel drive vehicle is selected for implementing the design so that it can move easily in any uneven terrain.
  • the basic principle of implementing mobile coverage moving with convoy- is shown in Figure 1.
  • the BTS is housing the radio transceivers which transmits and receives signals on the allocated frequencies. This in-turn communicates with its BSC at the home location through the satellite link as shown in Figure 1.
  • the BSC Manages the radio resource of the BTS and also the connection between the mobile station (MS) and the external network subsystem.
  • the BSC is interconnected to the mobile switching centre (MSG). It acts as the normal switching node for the mobile or land line telephone in the home network.
  • MSG mobile switching centre
  • the signal transmitted from the mobile station (MS) 101 that is from the subscriber handset is picked up by the GSM Omini antenna 102 as shown in Figure 1.
  • the signal is processed by the Micro BTS 103 which is passed to the satellite modem 104.
  • the modem output , the intermediate frequency (IF) signal is up converted and amplified by block up converter inside the TX System 105 to the desired satellite communication frequency band and transmitted through the satellite communication antenna 106 inside the radome 205 shown in Figure 2.
  • This antenna automatically tracks and locks to the specified satellite and maintains the communication link.
  • the signal is received at the distant earth station 107, fed to earth station receive system 108 , where it is down converted and demodulated to the desired base band frequency .
  • This base band signal is transmitted to its Base Station Controller (BSC) 109. There the signal is processed and switched to the public network 1 10, and routed to the designated subscriber 1 1 1.
  • BSC Base Station Controller
  • the reverse process takes place.
  • the signal is received from the BSC at the earth station is transmitted back to the transportable vehicle through the satellite.
  • the signal is received and frequency translated to the desired band by the LNB in RX path 105 placed below the antenna base plate 206 shown in Figure 2.
  • the IF signal thus received is demodulated by the satellite modem 104 and processed by the Micro BTS .103.
  • Omni Antenna 102 radiates this signal from the BTS. If the traveller is within the vicinity of the BTS coverage range, the signal will be picked up by the mobile station 101. Thus a two way communication is established. The idea is successfully tested.
  • the Micro BTS is mounted in an anti shock rack housed in a 4-wheel drive.
  • a rapidly deployable mast is mounted on top of the vehicle as shown in Figure 2.
  • the Omini antenna mounted over the GSM mast will create the radiation. pattern so that the signal can be transmitted / Received by the Mobile handsetlO l within the coverage range. So any mobile station with in this range can access the BTS.
  • the BTS Since the BTS is mounted in the vehicle and is moving: the coverage pattern also moving along with the traveller. However the traveller has the freedom to move away from the vehicle and can communicate from anywhere within the coverage area.
  • the overall system idea is briefed as follows.
  • the internal space of the 4- wheel drive is redesigned to accommodate all mobile communication equipment and satellite communication equipments inside the vehicle as shown in Figure 2.
  • Anti shock 19 inch rack 201 is bolted to the chassis.
  • 60 mm GI pipe is used to reinforce structure 202 to bear the antenna load while moving.
  • the entire structure is fixed on a base plate and attached to the vehicle main frame203.
  • Interface panel 204 is provided to terminate all input output signals to the system.
  • Micro BTS 103 is placed inside the rack201 over a perforated sheet for ventilation and heat transfer.
  • the signal from Micro BTS 103 is interconnected to satellite modem 104, in order to maintain the link integrity and performance an automatic EIRP control is incorporated in transmit path either side of the link. This ensures constant Eb/No at the receiver on both ends, enhancing link stability irrespective of footprint regression and weather condition.
  • Main and standby modems are provided in the rack. Internally generated AC power is made available in the power distribution panel 319
  • the power required for the smooth operation of the system is required to be generated internally. Since it is operating on a moving vehicle, wired connection from external source is not possible. On board equipment needs AC and DC power of various voltages and power rating. This is met internally by designing a suitable power supply.
  • To operate satellite modem and micro BTS requires 230 V AC power.
  • RF system (BUC and LNB), antenna control unit and GPS operate on 24 V DC. As shown in Figure 3, provision is also made to operate system from external source when it is not in motion. Selection is done by a switch.
  • 230Volt AC power is generated using 12 V car alternators and fed to inverters.
  • Figure 3 shows the circuit idea of 'the power supply design and Figure 4 shows the exact location of power system components. Design details included in a separate article.
  • Effective cooling arrangement is essential for the proper functioning of all communication equipment inside the vehicle.
  • Built in vehicle AC system is effectively utilized for cooling equipments by proper planning of equipment layout.
  • the mobile communication antenna is mounted on a rapidly deployable mast.
  • Mast mounting arrangement is made in such a way to hold the Mast in vertical position with minimal vibration during movement and also provision is made for rapid deployment as required.
  • Figure 5 shows the power switching arrangement for various communication equipments in the vehicle. To resist the ingress of dust and rain water to the equipment a transparent plastic adhesive type protection hanger is incorporated in the design.
  • Provision of mobile coverage for the moving convoy is achieved using satellite- BTS- to- BSC link.
  • the invention can be widely used in emergency situation for disaster recovery operations.
  • a traveller on the move can have his communication intact irrespective of the location .
  • Expedition teams can make use of this to communicate from uneven terrain and can even adapt as communication solution in critical fronts.

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

La présente invention se rapporte à un système adapté pour fournir un service de communication mobile à un convoi en mouvement au moyen d'une liaison satellite de BTS à BSC, quelle que soit la position. Une station de base émettrice-réceptrice ayant un motif de couverture qui se déplace en même temps qu'un convoi est créée. La BTS établit une liaison radio entre la station mobile et un contrôleur de station de base à la position nominale via la liaison satellite. L'idée est mise en œuvre en combinant la technologie de la communication par satellite et la technologie GSM. Pour atteindre cet objectif, un système transportable est conçu, le système comprenant tous les équipements de communication nécessaires. D'une façon générale, le système comprend un véhicule tout-terrain équipé : d'une micro station de base émettrice-réceptrice (BTS) ; d'antennes de transmission GSM sur un mât à déploiement rapide ; d'un terminal de réception/transmission par satellite ; et d'une antenne sophistiquée qui trace le satellite et se verrouille sur lui dans toutes les conditions de tangage, roulis et lacet. De cette manière, l'utilisateur final distant bénéficie d'un contact sans faille via le satellite chaque fois que l'utilisateur final distant se trouve dans la zone de couverture du satellite.
PCT/IB2010/054391 2010-09-29 2010-09-29 Application et mise en œuvre de la fourniture d'une couverture mobile pour un convoi en mouvement au moyen d'une liaison satellite de bts à bsc Ceased WO2012042297A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2010/054391 WO2012042297A1 (fr) 2010-09-29 2010-09-29 Application et mise en œuvre de la fourniture d'une couverture mobile pour un convoi en mouvement au moyen d'une liaison satellite de bts à bsc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2010/054391 WO2012042297A1 (fr) 2010-09-29 2010-09-29 Application et mise en œuvre de la fourniture d'une couverture mobile pour un convoi en mouvement au moyen d'une liaison satellite de bts à bsc

Publications (1)

Publication Number Publication Date
WO2012042297A1 true WO2012042297A1 (fr) 2012-04-05

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PCT/IB2010/054391 Ceased WO2012042297A1 (fr) 2010-09-29 2010-09-29 Application et mise en œuvre de la fourniture d'une couverture mobile pour un convoi en mouvement au moyen d'une liaison satellite de bts à bsc

Country Status (1)

Country Link
WO (1) WO2012042297A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014147561A1 (fr) * 2013-03-21 2014-09-25 Telefonaktiebolaget L M Ericsson (Publ) Sélection de contrôleur de station de base pour une station de base radio d'itinérance et son procédé de fonctionnement
WO2015063739A1 (fr) * 2013-10-31 2015-05-07 Telefonaktiebolaget L M Ericsson (Publ) Gestion de priorité d'applications machine à machine maritimes
CN104929442A (zh) * 2014-03-21 2015-09-23 戴海彬 智能防盗锁

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5729826A (en) * 1996-07-26 1998-03-17 Gavrilovich; Charles D. Mobile communication system with moving base station
AU5958199A (en) * 1998-12-07 2000-06-08 Alcatel Transportable mobile base station
US20020123344A1 (en) * 2001-03-01 2002-09-05 Alcatel Cellular mobile telephone system that can be used on board a vehicle
US6603967B1 (en) * 1997-09-03 2003-08-05 Nokia Corporation Call routing in a radio system
WO2005122429A1 (fr) * 2004-06-11 2005-12-22 Geolink Systeme de communication mobile pour etre utilise a bord d'une structure mobile et pour utiliser une liaison par satellite

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5729826A (en) * 1996-07-26 1998-03-17 Gavrilovich; Charles D. Mobile communication system with moving base station
US6603967B1 (en) * 1997-09-03 2003-08-05 Nokia Corporation Call routing in a radio system
AU5958199A (en) * 1998-12-07 2000-06-08 Alcatel Transportable mobile base station
US20020123344A1 (en) * 2001-03-01 2002-09-05 Alcatel Cellular mobile telephone system that can be used on board a vehicle
WO2005122429A1 (fr) * 2004-06-11 2005-12-22 Geolink Systeme de communication mobile pour etre utilise a bord d'une structure mobile et pour utiliser une liaison par satellite

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014147561A1 (fr) * 2013-03-21 2014-09-25 Telefonaktiebolaget L M Ericsson (Publ) Sélection de contrôleur de station de base pour une station de base radio d'itinérance et son procédé de fonctionnement
US9408115B2 (en) 2013-03-21 2016-08-02 Telefonaktiebolaget L M Ericsson (Publ) Base station controller selection for a roaming radio base station and method of operating the same
WO2015063739A1 (fr) * 2013-10-31 2015-05-07 Telefonaktiebolaget L M Ericsson (Publ) Gestion de priorité d'applications machine à machine maritimes
US9407380B2 (en) 2013-10-31 2016-08-02 Telefonaktiebolaget L M Ericsson (Publ) Maritime machine-to-machine (M2M) application priority management
CN104929442A (zh) * 2014-03-21 2015-09-23 戴海彬 智能防盗锁

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