WO2023102420A1 - Terminal de mobilité intégré pour communications par satellite - Google Patents

Terminal de mobilité intégré pour communications par satellite Download PDF

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Publication number
WO2023102420A1
WO2023102420A1 PCT/US2022/080656 US2022080656W WO2023102420A1 WO 2023102420 A1 WO2023102420 A1 WO 2023102420A1 US 2022080656 W US2022080656 W US 2022080656W WO 2023102420 A1 WO2023102420 A1 WO 2023102420A1
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WO
WIPO (PCT)
Prior art keywords
mobility terminal
integrated mobility
bfa
integrated
terminal
Prior art date
Application number
PCT/US2022/080656
Other languages
English (en)
Inventor
Reza RASOULIAN
John Schmid
Original Assignee
Hughes Network Systems, Llc
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 Hughes Network Systems, Llc filed Critical Hughes Network Systems, Llc
Priority to CA3238631A priority Critical patent/CA3238631A1/fr
Priority claimed from US18/060,217 external-priority patent/US20230179290A1/en
Publication of WO2023102420A1 publication Critical patent/WO2023102420A1/fr

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
    • H04B7/18517—Transmission equipment in earth stations

Definitions

  • An integrated mobility terminal for satellite communications provides data communications to end users on a mobile platform.
  • the mobile platform includes aeronautical, maritime and land mobile vehicles.
  • the prior technology implementations include multiple Line Replaceable Units (LRUs) necessitating a larger Size, Weight, and Power consumption (SWaP) in the mobile platform.
  • LRUs Line Replaceable Units
  • SWaP Size, Weight, and Power consumption
  • the larger size of the multiple LRUs can degrade the performance of the mobile platform due to aerodynamic drag and SWaP.
  • the prior technology is based on the ARINC 791/792 industry standards specifying that the mobility terminal is to be implemented as multiple Line Replaceable Units (LRUs) that are separately installed on the aircraft. This results in more physical space, weight and power consumption.
  • some of the multiple LRUs of the prior art include climate control environments that can further tax the mobile platform.
  • An integrated mobility terminal enables the placement on mobile platforms where prior technology placement would not be possible.
  • the integrated mobility terminal is integrated into a single LRU.
  • the LRU integrates satellite components to support a mobility application, for example, a satellite modem, a Radio Frequency (RF) transceiver, an antenna aperture, a Beam Forming Array (BFA), a terminal control manager, position sensors, attitude sensors and power supply conditioning into a single LRU.
  • RF Radio Frequency
  • BFA Beam Forming Array
  • a single LRU significantly reduces the integrated mobility terminal’s size and weight.
  • the single LRU eliminates interface components between the multiple LRUs.
  • by integrating functions into a single LRU results in a significant reduction in power consumption and climate control.
  • the techniques described herein relate to an integrated mobility terminal including: a modem to modulate/demodulate digital data to an intermediate frequency (IF) signal; an RF Conversion Module (RCM) to communicate between the IF signal a Radio Frequency (RF) signal for satellite communications; a Beam Forming Array (BFA) to transceive the RF signal; a Common Control Module (CCM) to manage the modem, the RCM and the BFA; and a chassis to house the modem, the RCM, the BFA and the CCM, wherein the chassis is of an integrated-unitary construction.
  • IF intermediate frequency
  • RCM Radio Frequency
  • BFA Beam Forming Array
  • CCM Common Control Module
  • chassis to house the modem, the RCM, the BFA and the CCM, wherein the chassis is of an integrated-unitary construction.
  • the techniques described herein relate to an integrated mobility terminal, further including a power supply unit.
  • the techniques described herein relate to an integrated mobility terminal, further including a Global Navigation Satellite System (GNSS) to provide a geographic location of the integrated mobility terminal.
  • GNSS Global Navigation Satellite System
  • the techniques described herein relate to an integrated mobility terminal, wherein the GNSS includes a Global Positioning System (GPS) providing time, frequency and geographic location information.
  • GPS Global Positioning System
  • the techniques described herein relate to an integrated mobility terminal, further including an Attitude Heading Reference System (AHRS), wherein the AHRS provides roll, pitch and yaw measurements needed to properly point the BFA to a satellite.
  • AHRS Attitude Heading Reference System
  • the techniques described herein relate to an integrated mobility terminal, wherein the AHRS is self-aligning and a disposition of the integrated mobility terminal on a mobile platform is agnostic as to an attitude of the mobile platform.
  • the techniques described herein relate to an integrated mobility terminal, further including a data port configured to communicate via digital packets.
  • the techniques described herein relate to an integrated mobility terminal, further including an ethernet port configured to communicate via digital packets.
  • the techniques described herein relate to an integrated mobility terminal, further including a radome forming an exterior wall of the integrated mobility terminal, wherein the radome is disposed above the BFA.
  • the techniques described herein relate to an integrated mobility terminal, further including a polarizer disposed above the BFA.
  • the techniques described herein relate to an integrated mobility terminal, wherein the BFA has an operational range including 10.7 to 12.7 GHz for reception, the BFA has an operational range including 14 to 14.5 GHz for transmission, the BFA has a field of view from 45 to 90 degrees elevation and 360 degrees in azimuth.
  • the techniques described herein relate to an integrated mobility terminal, further including an AHRS and a GNSS.
  • the techniques described herein relate to an integrated mobility terminal including: a modem to modulate/demodulate digital data to an intermediate frequency (IF) signal; an RF Conversion Module (RCM) to communicate between the IF signal a Radio Frequency (RF) signal for satellite communications; a Beam Forming Array (BFA) to transceive the RF signal; a Common Control Module (CCM) to manage the modem, the RCM and the BFA; and an Attitude Heading Reference System (AHRS), wherein the AHRS provides roll, pitch and yaw measurements needed to properly point the BFA to a satellite, wherein the AHRS is self-aligning and a disposition of the integrated mobility terminal on a mobile platform is agnostic as to an attitude of the mobile platform.
  • IF intermediate frequency
  • RCM Radio Frequency
  • BFA Radio Frequency
  • CCM Common Control Module
  • AHRS Attitude Heading Reference System
  • the techniques described herein relate to an integrated mobility terminal, further including a power supply unit.
  • the techniques described herein relate to an integrated mobility terminal, further including a Global Navigation Satellite System (GNSS) to provide a geographic location of the integrated mobility terminal.
  • GNSS Global Navigation Satellite System
  • the techniques described herein relate to an integrated mobility terminal, further including a data port configured to communicate via digital packets.
  • the techniques described herein relate to an integrated mobility terminal, further including a radome forming an exterior wall of the integrated mobility terminal, wherein the radome is disposed above the BFA.
  • the techniques described herein relate to an integrated mobility terminal, further including a polarizer disposed above the BFA.
  • the techniques described herein relate to an integrated mobility terminal, wherein the BFA has an operational range including 10.7 to 12.7 GHz for reception, the BFA has an operational range including 14 to 14.5 GHz for transmission, the BFA has a field of view from 45 to 90 degrees elevation and 360 degrees in azimuth.
  • the techniques described herein relate to an integrated mobility terminal, wherein the chassis is of an integrated-unitary construction.
  • FIG. 1 illustrates an integrated mobility terminal disposed on an outer surface of a platform according to various embodiments.
  • FIG. 2 illustrates a block diagram of an integrated mobility terminal according to various embodiments.
  • FIG. 3 illustrates an integrated mobility terminal according to various embodiments.
  • FIG. 4 illustrates an integrated mobility terminal according to various embodiments.
  • a single LRU greatly simplifies the installation process.
  • the single LRU operates using, for example, one power input and one or more user data interfaces.
  • the user data interfaces may be selected from standardized interfaces, such as Ethernet or optical fiber.
  • control and data communications may use the same interface, such as, an Ethernet interface.
  • the control and data communications may use discrete interfaces, possibly of the same type.
  • a compact integrated mobility terminal for use with satellite data communications systems on mobile platforms such as, aeronautical, maritime and land vehicles is disclosed.
  • the satellite system can be Geosynchronous (GEO), Medium Earth Orbit (MEO) or Low Earth Orbit (LEO) or a combination of the three.
  • the integrated mobility terminal may be of an integrated unitary construction, for example, as an assembled package ready to be mounted to the mobile platform.
  • the mounting may or may not use a mounting (adapter) plate.
  • the integrated mobility terminal may support mechanical mounting.
  • the integrated mobility terminal may have thermal management features.
  • the integrated mobility terminal may be used with a radome.
  • the radome may be part of the integrated mobility terminal or provided separately. The radome protects against the environment, birds or direct lightning strikes. Operation of the integrated mobility terminal is independent of connecting to or accessing a mobile platform’s navigation data, for example, aircraft navigation data per ARINC A429.
  • the integrated mobility terminal may operate as a receiver for RF signals ranging from 10.7 to 12.7 GHz. In exemplary embodiments, the integrated mobility terminal may operate as a transmitter for RF signals ranging from 14 to 14.5 GHz.
  • the integrated mobility terminal may have a field of view ranging from 45 to 90 degrees in elevation and 360 degrees across the azimuth.
  • the integrated mobility terminal may support simplex, duplex or half-duplex communications. In exemplary embodiments, the integrated mobility terminal may operate in half-duplex mode with a switching time of less than 5 milliseconds, less than 1 millisecond or the like.
  • the integrated mobility terminal may provide a forward data rate (from gateway to mobility terminal) of 50 Mbps with a peak rate of 70 Mbps. In exemplary embodiments, the integrated mobility terminal may provide a return data rate (from gateway to mobility terminal of 5 Mbps with a peak rate 10 Mbps.
  • the integrated mobility terminal may have height of less than 6 inches, less than 2 inches, or the like. In some embodiments, the integrated mobility terminal may have width of less than 2 feet, less than 14 inches, less than 1 foot, less than 7 inches, or the like. In some embodiments, the integrated mobility terminal may have length of less than 3 feet, less than 2 feet, less than 1 foot or the like.
  • FIG. 1 illustrates an integrated mobility terminal disposed on an outer surface of a platform according to various embodiments.
  • An integrated mobility terminal 100 is integrated into a single LRU.
  • the integrated mobility terminal 100 may provide a low profile such that it does not produce any significant wind load drag on the mobile platform while in motion.
  • the integrated mobility terminal 100 may be a compact totally integrated unit.
  • the integrated mobility terminal 100 may be a single Line Replaceable Unit (LRU).
  • LRU Line Replaceable Unit
  • the integrated mobility terminal 100 integrates various satellite terminal functions to support a mobility application.
  • the integrated mobility terminal 100 may include a radome 102 to protect the terminal circuitry and components from the outside environment including water ingress, lightning protection, and protection against corrosion.
  • the integrated mobility terminal 100 may include a Beam Forming Array (BFA) 104 that may be implemented as a low-profile flat panel antenna aperture to provide the Beam Forming Array.
  • the BFA may enable communication with a satellite by tracking the mobile platform and/or satellite motion.
  • the BFA 104 may include a low-profile flat panel Electrically Steerable Antenna (ESA).
  • ESA Electrically Steerable Antenna
  • the BFA 104 may operate in the Ku band.
  • the BFA 104 may operate in the Ka band.
  • the BFA 104 may include a circular polarizer. The circular polarizer may be switchable.
  • the integrated mobility terminal 100 may include an Attitude Heading Reference System (AHRS) 106 for use in antenna pointing.
  • AHRS Attitude Heading Reference System
  • the AHRS 106 may provide roll, pitch, and yaw reference and orientation information of the integrated mobility terminal 100 (as opposed to the attitude of the mobile platform) to a targeted satellite (not shown).
  • the mobility terminal may be self-aligning, and the attitude determination does not include additional attitude data nor precision alignment of the BFA 104 to the mobile platform.
  • the integrated mobility terminal 100 may include a GNSS 108, such as, the Global Positioning System (GPS), to provide the geographical position of the integrated mobility terminal 100.
  • the geographical position may be used to select the targeted satellite (based on ephemeris data for example) and to accurately track the targeted satellite with the BFA 104.
  • the geographic location determination of the integrated mobility terminal 100 does not include additional navigation data nor precision alignment to the mobile platform.
  • the integrated mobility terminal 100 may intermittently determine its geographic location and orientation using the GNSS 108.
  • the integrated mobility terminal 100 may integrate the GNSS 108 and the AHRS 106 therein, for example, in the BFA 104.
  • the GNSS 108 may provide position, time and frequency reference information.
  • the integrated mobility terminal 100 may include a Common Control Module (CCM) 110 to provide the overall control and monitoring functions.
  • the CCM 110 may provide both local and remote network management functions including fault management, configuration, authentication, performance monitoring and access security.
  • the CCM 110 may include a modem 114.
  • the CCM 110 may include a control processor.
  • the prior art fails to integrate the terminal manager into a single terminal LRU and includes external components to provide any management or control functions.
  • the integrated mobility terminal 100 may include an RF conversion module (RCM) 112 to provide frequency conversion and amplification of the modem modulated signals to frequencies that are compatible with satellite systems including but not limited to the Ku and Ka frequency bands.
  • the RCM 112 may be included in a satellite band RF transceiver. This prior art fails to integrate the RCM into a signal terminal LRU and includes external components to provide the RF transceiver.
  • the integrated mobility terminal 100 may include a modem 114 to provide the modulation and demodulation of the user data received via a data port 120 into signals that can be communicated over the satellite system.
  • baseband data is modulated and demodulated into signals using the modem, which signals can be transmitted and received over the air.
  • the data port 120 communicates digital data, for example, data packets such as Internet Protocol (IP) packets.
  • IP Internet Protocol
  • the integrated mobility terminal 100 may include a Power Supply Unit (PSU) 116 to accept power either as AC or DC via power port 122 and convert into the voltages for the satellite terminal circuitry.
  • PSU Power Supply Unit
  • the power available on a mobile platform may be limited.
  • a single LRU enables the operation of the satellite terminal where prior technology would not be possible.
  • the inoperability of the prior art technology may be due to environment controls for some of the multiple LRUs (heat dissipation or the like). For example, for some components of a multiple LRU mobility terminal, significant heat dissipation adversely affects the performance of the satellite terminal.
  • the integrated mobility terminal 100 may include a mounting plate 118.
  • the mounting plate 118 may be affixed to a substrate 130 of a mobile platform (not shown) having an outer surface 132 and an inner surface 134.
  • the integrated mobility terminal 100 may be affixed to the outer surface 132 with the radome 102 being oriented away from the mobile platform.
  • the integrated mobility terminal 100 may be disposed as outside aircraft equipment.
  • the integrated mobility terminal 100 may connect to inside aircraft equipment.
  • Exemplary inside equipment may include a network router 136 connected to the integrated mobility terminal 100 via the data port 120, for example, a GigE LAN.
  • Exemplary inside equipment may include a platform power 138 connected to the integrated mobility terminal 100 via the power port 122.
  • the platform power 138 may provide a power holdup, for example, of 200 milliseconds.
  • the platform power 138 may supply DC power at about 12 Volts, at about 28 Volts, at about 50 Volts or the like.
  • the platform power 138 may supply AC power at about 120 Volts, at about 240 Volts, at about 480 Volts or the like.
  • FIG. 2 illustrates a block diagram of an integrated mobility terminal according to various embodiments.
  • An integrated mobility terminal 200 may include a Common Control Module (CCM) 202 including a modem 204.
  • the modem 204 may modulate/demodulate signals at an Intermediate Frequency (IF).
  • the integrated mobility terminal 200 may include a RF Conversion Module (RCM) 206.
  • the RCM 206 may include an IF to satellite frequency band (such as Ku or Ka band) transceiver.
  • the CCM 202 may communicate the IF signals between the modem 204 and the RCM 206 via an IF line 216.
  • the RCM 206 may convert between the IF signals and Radio Frequency (RF) signals communicated with a satellite (not shown) via an RF line 214.
  • the integrated mobility terminal 200 may include an AHRS 208.
  • the integrated mobility terminal 200 may include an GNSS 210.
  • the integrated mobility terminal 200 may include a BFA 212.
  • FIG. 3 illustrates an integrated mobility terminal according to various embodiments.
  • An integrated mobility terminal 300 may include a radome 302, a polarizer 304, a polarizer gasket 306, a chassis 308, a chassis baseplate 312 and a baseplate 314.
  • the chassis 308 may include a beam forming array 316 and a CCM 310.
  • the radome 302 may form an exterior wall of the integrated mobility terminal 300.
  • the chassis baseplate 312 may form an exterior wall of the integrated mobility terminal 300.
  • the radome 302 may include screw holes 318 corresponding to nuts 320 included in the baseplate 314.
  • the integrated mobility terminal 300 may be disposed on the mobile platform (not shown) affixing the screw holes 318 to the nuts 320.
  • FIG. 4 illustrates an integrated mobility terminal according to various embodiments.
  • An integrated mobility terminal 400 may include a radome 402, a polarizer gasket 406, a chassis 408, and a chassis baseplate 412.
  • the chassis 408 may include a sidewall 418, a beam forming array 416 and a CCM 410.
  • the radome 402 may form an exterior wall of the integrated mobility terminal 400.
  • the chassis baseplate 412 may form an exterior wall of the integrated mobility terminal 400.
  • the sidewall 418 of the chassis 408 may form an exterior wall of the integrated mobility terminal 400.
  • the sidewall 418 may include vertical mounting holes 420.
  • the integrated mobility terminal 300 may be disposed on the mobile platform (not shown) using the vertical mounting holes 420 along the sidewall 418.

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  • 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)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)

Abstract

Un terminal de mobilité intégré peut comprendre un modem pour moduler/démoduler des données numériques vers un signal de fréquence intermédiaire (IF) ; un module de conversion RF (RCM) pour communiquer entre le signal IF et une fréquence radio (RF) pour des communications par satellite ; un réseau de formation de faisceau (BFA) pour émettre et recevoir le signal RF et un module de commande commun (CCM) pour gérer le modem, le RCM et le BFA. Le terminal de mobilité intégré peut comprendre un châssis pour loger le modem, le RCM, le BFA et le CCM, le châssis étant d'une construction unitaire intégrée.
PCT/US2022/080656 2021-12-03 2022-11-30 Terminal de mobilité intégré pour communications par satellite WO2023102420A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA3238631A CA3238631A1 (fr) 2021-12-03 2022-11-30 Terminal de mobilite integre pour communications par satellite

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US202163264937P 2021-12-03 2021-12-03
US63/264,937 2021-12-03
US18/060,217 US20230179290A1 (en) 2021-12-03 2022-11-30 Integrated mobility terminal for satellite communications
US18/060,217 2022-11-30

Publications (1)

Publication Number Publication Date
WO2023102420A1 true WO2023102420A1 (fr) 2023-06-08

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PCT/US2022/080656 WO2023102420A1 (fr) 2021-12-03 2022-11-30 Terminal de mobilité intégré pour communications par satellite

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WO (1) WO2023102420A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120249366A1 (en) * 2011-04-04 2012-10-04 Raytheon Company Communications on the move antenna system
US20150011159A1 (en) * 2013-07-05 2015-01-08 Gilat Satellite Networks Ltd. System for dual frequency range mobile two-way satellite communications
US10574341B1 (en) * 2015-10-13 2020-02-25 Loon Llc Channel reconfigurable millimeter-wave RF system
CN111130627A (zh) * 2019-12-26 2020-05-08 中国科学院国家空间科学中心 一种海上相控阵卫星通信终端
WO2021096812A1 (fr) * 2019-11-12 2021-05-20 Viasat, Inc. Compensation de dérive de lacet pour pointer une antenne

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120249366A1 (en) * 2011-04-04 2012-10-04 Raytheon Company Communications on the move antenna system
US20150011159A1 (en) * 2013-07-05 2015-01-08 Gilat Satellite Networks Ltd. System for dual frequency range mobile two-way satellite communications
US10574341B1 (en) * 2015-10-13 2020-02-25 Loon Llc Channel reconfigurable millimeter-wave RF system
WO2021096812A1 (fr) * 2019-11-12 2021-05-20 Viasat, Inc. Compensation de dérive de lacet pour pointer une antenne
CN111130627A (zh) * 2019-12-26 2020-05-08 中国科学院国家空间科学中心 一种海上相控阵卫星通信终端

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