MH/T 9010.1-2018Ground-air high-speed data link technical specifications based on LET technology. Part 1: General technical specifications (English PDF)
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Issued by
Civil Aviation Administration of China
Level / Type
National · Recommended
Issue date
December 14, 2018
Implementation date
April 1, 2019
Scope
MH/T 9010.1-2018 (Ground-air high-speed data link technical specifications based on LET technology. Part 1: General technical specifications) is available as an English-translated PDF.
MH/T 9010.1-2018 — This part of MH/T 9010 specifies the overall architecture of civil aviation ground-to-air high-speed data link based on LTE technology (hereinafter referred to as ATG system) Requirements for structure, system function, system performance, airborne system, and airworthiness of airborne system.
This section applies to the design, development, testing, installation and acceptance of ATG systems for civil transport aircraft (including business jets).
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Document preview — MH/T 9010.1-2018
National Standard of the People's Republic of China
- ICS
- 49.090
- Classification
- V 08
Issued by: Civil Aviation Administration of China
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Abbreviations
- 5 Composition and functions of various parts of the ground ATG system
- 6 Overall architecture
- 7 Function and performance
- 7.1 Business
- 7.2 Mobility
- 7.3 Network coverage
- 7.4 Transmission delay
- 7.5 Cell access capacity
- 7.6 Operating frequency and duplex mode
- 7.7 MIMO support
- 7.8 Spectrum efficiency
- 7.9 Frequency bandwidth
- 7.10 RF characteristics
- 7.11 Model approval of radio transmitting equipment
- 7.12 Network interconnection
- 7.13 QoS
- 7.14 Airborne equipment unit
- 7.15 Airborne data communication
- 7.16 Interface with aircraft
- 7.17 System Maintenance
- 8 Test
- 8.1 Environment
- 8.2 Electromagnetic compatibility
- 8.3 Flame resistance
- 9 Security
- 9.1 System equipment safety
- 9.2 Cyber Security
- 9.3 Front and rear compartment isolation
Foreword
MH/T 9010 "Ground-to-air high-speed data link technical specifications based on LTE technology" is divided into the following four parts.
--Part 1: General technical specifications;
--Part 2: Airborne terminal specifications;
--Part 3: Airborne antenna specifications;
--Part 4: Installation and acceptance requirements;
This part is part 1 of MH/T 9010.
This section was drafted in accordance with the rules given in GB/T 1.1-2009.
This part was proposed by the Aircraft Airworthiness Certification Department of the Civil Aviation Administration of China.
This part is under the jurisdiction of China Academy of Civil Aviation Science and Technology.
Drafting organizations of this section. Shenzhen Institute of Avionics Technology, Shenzhen Donica Avionics Co., Ltd.
1 Scope
This part of MH/T 9010 specifies the overall architecture of civil aviation ground-to-air high-speed data link based on LTE technology (hereinafter referred to as ATG system) Requirements for structure, system function, system performance, airborne system, and airworthiness of airborne system.
This section applies to the design, development, testing, installation and acceptance of ATG systems for civil transport aircraft (including business jets).
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document.
For undated references, the latest version (including all amendments) applies to this document.
3 Terms and definitions
The following terms and definitions apply to this document.
Ground-to-air high-speed data link system based on LTE technology() technical specification of high rate air-to-grounddata linkbased on long term evolution Utilizes a system based on LTE (Long Term Evolution) technology to provide high-bandwidth data communication services between aircraft and ground dedicated communication networks, Referred to as ATG system.
Airborne terminal
Installed on the aircraft, responsible for accessing the ground system of the ground-to-air high-speed data link system based on LTE technology, and provide the aircraft with ground-to-air high-speed data According to the channel's airborne communication equipment.
Airborne antenna
Installed on the outside of the aircraft body, connected to the on-board terminal through radio frequency cables, responsible for the transmission and reception of wireless electromagnetic signals.
4 Abbreviations
5 Composition and functions of various parts of the ground ATG system
The ground ATG system is composed of ATG base stations, IP transmission networks, ATG core networks, ATG network management and business support systems.
ATG base station. set along the route, responsible for communicating with the aircraft's onboard ATG system through wireless signals.
IP transmission network. between ATG base stations, and between ATG base stations and ATG core network, as the communication channel of the IP transmission network.
ATG core network. Responsible for the mobility management of the ATG network, airborne terminal access management, signaling bearer, call management, switch routing management Wait.
ATG network management and business support system. responsible for ATG network operation and maintenance, daily monitoring, network security, user billing management, quality Network management and business support systems such as OoS management.
6 Overall architecture
The ATG system consists of the airborne ATG system (including the airborne terminal and the airborne antenna) and the ground ATG system. From the ground ATG base station and the aircraft the onboard ATG system performs two-way communication, and the ATG onboard system communicates with the onboard data application system through the data line.
The aircraft can seamlessly switch between multiple ground ATG base stations.
7 Function and performance
7.1 Business
It can support two-way communication based on IP data such as data, pictures, and videos.
7.2 Mobility
7.2.1 When the moving speed of the ATG airborne terminal supports 1.200 km/h, it can communicate normally in both directions.
7.2.2 The ATG system can effectively overcome the impact of Doppler shift caused by the aircraft's high-speed movement (at a ground speed of 1.200 km/h).
7.2.3 The ATG airborne terminal CPE can maintain normal communication when switching between ATG base stations, and the switching delay is not higher than 150 ms.
7.3 Network coverage
7.3.1 The farthest coverage radius of a single ATG base station supports 150 km, and the edge rate at this time is not less than 1 Mbps.
7.4 Transmission delay
When the wireless channel conditions are good, the maximum air interface delay for two-way data communication between the ATG airborne terminal CPE and the ground ATG base station does not exceed 50 ms.
7.5 Cell access capacity
The maximum number of ATG airborne terminal CPEs that an ATG base station can access in a single cell is not less than 16.
7.6 Operating frequency and duplex mode
7.6.1 The frequency used by the system should be the frequency licensed by the civil aviation authority or the national radio regulatory authority.
7.6.2 Duplex mode can choose TDD or FDD.
7.7 MIMO support
The ATG system can support the MIMO function, and the airborne terminal should at least support the dual receiving function.
7.8 Spectrum efficiency
7.8.1 The maximum downlink spectrum efficiency is not less than 5 bps/Hz.
7.8.2 The highest uplink spectrum efficiency is not less than 2.5 bps/Hz.
7.9 Frequency bandwidth
7.9.1 Supported frequency bandwidths include but are not limited to. 5 MH z, 10 MH z, 15 MH z and 20 MH z.
7.9.2 Support frequency carrier aggregation function.
7.10 RF characteristics
The transmission power of the ATG airborne terminal and the maximum transmission power of the ATG base station shall meet the requirements of the civil aviation authority and the national radio regulatory authority.
related requirements.
ATG airborne terminal's out-of-band emission, spurious emission, receiving sensitivity, in-channel selectivity, adjacent channel selectivity, narrowband blocking and other radio frequencies the indicators should meet the requirements of "YD/T 2578-2013 LTE FDD Digital Cellular Mobile Communication Network Terminal Equipment Test Method (Phase 1)" or "YD/T 2576-2013 TD-LTE Digital Cellular Mobile Communication Network Terminal Equipment Test Method (Phase 1)".
ATG base station's out-of-band emission, spurious emission, receiving sensitivity, in-channel selectivity, adjacent channel selectivity, narrowband blocking and other radio frequency indicators should meet "YD/T 2573-2013 LTE FDD Digital Cellular Mobile Communication Network Base Station Equipment Technical Requirements (Phase 1)" or "YD/T 2571-2013 TD-LTE Digital Cellular Mobile Communication Network Base Station Equipment Technical Requirements (Phase 1)".
7.11 Model approval of radio transmitting equipment
ATG airborne terminal and ATG base station equipment should obtain the approval of the Ministry of Industry and Information Technology's radio transmission equipment type approval.
The radio frequency characteristic test method of ATG airborne terminal in the process of radio transmission equipment type approval should refer to "YD/T 2578-2013 LTE FDD Digital Cellular Mobile Communication Network Terminal Equipment Test Method (Phase 1)" or "YD/T 2576-2013 TD-LTE Digital Cellular Mobile Relevant requirements in "Test Methods for Mobile Communication Network Terminal Equipment (Phase 1)".
The radio frequency characteristic test method of ATG base station in the process of radio transmission equipment type approval should refer to "YD/T 2574-2013 LTE FDD Digital Cellular Mobile Communication Network Base Station Equipment Test Method (Phase 1)" or "YD/T 2572-2013 TD-LTE Digital Cellular Mobile Communication Relevant requirements in "Test Method for Network Base Station Equipment (Phase 1)".
7.12 Network interconnection
The ground ATG network should support docking with other IP networks for two-way data transmission. Other IP networks connected to include the Internet, Civil aviation dedicated network, etc.
7.13 QoS
The ATG system should be able to provide different levels of QoS services for different business flows in the cabin.
7.14 Airborne equipment unit
The airborne equipment unit includes ATG airborne terminal and ATG airborne antenna.
7.15 Airborne data communication
It has the functions of two-way data communication with other airborne communication equipment and maintenance and management.
7.16 Interface with aircraft
7.16.1 It shall be possible to obtain power from the aircraft, and be able to directly or indirectly read the aircraft bus data.
7.16.2 The read data interface should have safety protection measures to prevent writing data to the aircraft data bus.
7.17 System Maintenance
The ATG system supports the following maintenance information.
a) Network topology management function;
b) Measurement report for coverage optimization;
c) System monitoring function;
d) Equipment parameters can be configured;
e) System performance monitoring capability;
f) The ability to find, alarm and locate faults;
g) Logging function.
8 Test
8.1 Environment
Should meet the requirements for environmental testing in RTCA/DO-160G.
8.2 Electromagnetic compatibility
Should meet the requirements for electromagnetic compatibility test in RTCA/DO-160G.
8.3 Flame resistance
Should meet RTCA/DO-160G requirements for flame retardancy.
9 Security
9.1 System equipment safety
The equipment hardware design should meet the requirements of RTCA/DO-254, and the equipment software design should meet the requirements of RTCA/DO-178C.
9.2 Cyber Security
9.2.1 Two-way authentication management should be carried out for airborne terminals to join the ground network. Only authorized airborne terminals can access the ground-to-air broadband network.
Airborne terminals should also identify and access ground-to-air networks to avoid illegal network access in disguise.
9.2.2 All connection log data should be retained to ensure data integrity and confidentiality.
9.2.3 Adopt security protection strategies for various security attacks and defenses.
9.3 Front and rear compartment isolation
When the airborne ATG system is applied to aircraft passenger information and entertainment services, technical means should be adopted to ensure aircraft passenger information and entertainment services.
Le service business is safely isolated from ATC and AOC business systems.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 7 pages — is available in the English PDF.
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Related Standards
MH/T 9010.2-2018 — Ground-air high-speed data link technical specifications based on LET technology. Part 2: Airborne terminal specifications
MH/T 9010.3-2018 — Ground-air high-speed data link technical specifications based on LET technology. Part 3: Airborne antenna specifications
MH/T 9010.4-2018 — Ground-air high-speed data link technical specifications based on LET technology. Part 4: Installation and acceptance requirements
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