Re: [Raw] RAW use-cases draft

["Dr. Corinna Schmitt" <[e-mail]>]

Dear Georgios,

you are well come.
Let us know where you need which input, so we can prepare it directly.
An updated version for LDACS is scheduled in Q1 or Q2 of 2020 from our side.

Regards,
Corinna



Am 04.12.19 um 10:21 schrieb Georgios Z. Papadopoulos:
> Dear Corina,
>
> Thank you so much for this.
> We should work now on the .02 version.
>
> Keep you posted,
> Georgios
>
>
>
>> On Dec 2, 2019, at 14:26, Dr. Corinna Schmitt
>> <[e-mail] <mailto:[e-mail]>> wrote:
>>
>> Dear Georgies,
>>
>> I do not know if Nils already answered as he is currently traveling.
>> So here is some text copied from out LDACS draft
>> (https://tools.ietf.org/html/draft-maeurer-raw-ldacs-00) from Chapter
>> 3 entitled "Motivation and Use Cases:
>>
>>
>>     3
>>     <https://tools.ietf.org/html/draft-maeurer-raw-ldacs-00#section-3>.
>>     Motivation and Use Cases
>>
>>
>>
>>    Aircraft are currently connected to Air-Traffic Control (ATC) and
>>    Airline Operational Control (AOC) via voice and data communications
>>    systems through all phases of a flight.  Within the airport terminal,
>>    connectivity is focused on high bandwidth communications, while
>>    during en-route high reliability, robustness, and range is the main
>>    focus.  Voice communications may use the same or different equipment
>>    as data communications systems.  In the following the main
>>    differences between voice and data communications capabilities are
>>    summarized.  The assumed use cases for LDACS completes the list of
>>    use cases stated in [RAW-USE-CASES <https://tools.ietf.org/html/draft-maeurer-raw-ldacs-00#ref-RAW-USE-CASES>] and the list of reliable and
>>    available wireless technologies presented in [RAW-TECHNOS <https://tools.ietf.org/html/draft-maeurer-raw-ldacs-00#ref-RAW-TECHNOS>].
>>
>>
>>       3.1
>>       <https://tools.ietf.org/html/draft-maeurer-raw-ldacs-00#section-3.1>.
>>       Voice Communications Today
>>
>>
>>
>>    Voice links are used for Air-To-Ground (A/G) and Air-To-Air (A/A)
>>    communications.  The communication equipment is either ground-based
>>    working in the High Frequency (HF) or Very High Frequency (VHF)
>>    frequency band or satellite-based.  All voice communications is
>>    operated via open broadcast channels without any authentication,
>>    encryption or other protective measures.  The use of well-proven
>>    communication procedures via broadcast channels helps to enhance the
>>    safety of communications by taking into account that other users may
>>    encounter communication problems and may be supported, if required.
>>    The main voice communications media is still the analogue VHF Double
>>    Side-Band Amplitude Modulation (DSB-AM) communications technique,
>>    supplemented by HF Single Side-Band Amplitude Modulation (SSB-AM) and
>>    satellite communications for remote and oceanic areas.  DSB-AM has
>>    been in use since 1948, works reliably and safely, and uses low-cost
>>    communication equipment.  These are the main reasons why VHF DSB-AM
>>    communications is still in use, and it is likely that this technology
>>    will remain in service for many more years.  This however results in
>>    current operational limitations and becomes impediments in deploying
>>    new Air-Traffic Management (ATM) applications, such as flight-centric
>>    operation with point-to-point communications.
>>
>>
>>       3.2
>>       <https://tools.ietf.org/html/draft-maeurer-raw-ldacs-00#section-3.2>.
>>       Data Communications Today
>>
>>
>>
>>    Like for voice, data communications into the cockpit is currently
>>    provided by ground-based equipment operating either on HF or VHF
>>    radio bands or by legacy satellite systems.  All these communication
>>    systems are using narrowband radio channels with a data throughput
>>    capacity of some kilobits per second.  While the aircraft is on
>>    ground some additional communications systems are available, like
>>    Aeronautical Mobile Airport Communication System (AeroMACS),
>>    operating in the Airport (APT) domain and able to deliver broadband
>>    communication capability.
>>
>>    The data communication networks used for the transmission of data
>>    relating to the safety and regularity of the flight must be strictly
>>    isolated from those providing entertainment services to passengers.
>>    This leads to a situation that the flight crews are supported by
>>    narrowband services during flight while passengers have access to
>>    inflight broadband services.  The current HF and VHF data links
>>    cannot provide broadband services now or in the future, due to the
>>    lack of available spectrum.  This technical shortcoming is becoming a
>>    limitation to enhanced ATM operations, such as Trajectory-Based
>>    Operations (TBO) and 4D trajectory negotiations.
>>
>>    Satellite-based communications are currently under investigation and
>>    enhanced capabilities are under development which will be able to
>>    provide inflight broadband services and communications supporting the
>>    safety and regularity of the flight.  In parallel, the ground-based
>>    broadband data link technology LDACS is being standardized by ICAO
>>    and has recently shown its maturity during flight tests [SCH191 <https://tools.ietf.org/html/draft-maeurer-raw-ldacs-00#ref-SCH191>].
>>    The LDACS technology is scalable, secure and spectrum efficient and
>>    provides significant advantages to the users and service providers.
>>    It is expected that both - satellite systems and LDACS - will be
>>    deployed to support the future aeronautical communication needs as
>>    envisaged by the ICAO Global Air Navigation Plan (GANP). 
>>
>>
>>
>>
>>
>> Regards,
>> Corinna
>>
>>
>>
>> Am 28.11.19 um 13:01 schrieb Georgios Z. Papadopoulos:
>>> Hello Nils,
>>>
>>> Could you please provide some text about the aeronautical
>>> communications use case thus, we could update the draft accordingly.
>>> Or you could directly integrate it to the draft.
>>>
>>> thanks,
>>> Georgios
>>
>> -- 
>> ******************************************************
>>
>> Dr. Corinna Schmitt
>> Researcher and Laboratory Supervisor
>>
>> Research Institute CODE
>> Universität der Bundeswehr München
>>
>> Werner-Heisenberg-Weg 39
>> 85577 Neubiberg, Germany
>>
>> Phone: [phone]
>> Email: [e-mail]
>> https://www.unibw.de/code
>> https://www.corinna-schmitt.de
>

-- 
******************************************************

Dr. Corinna Schmitt
Researcher and Laboratory Supervisor

Research Institute CODE
Universität der Bundeswehr München

Werner-Heisenberg-Weg 39
85577 Neubiberg, Germany

Phone: [phone]
Email: [e-mail]
https://www.unibw.de/code
https://www.corinna-schmitt.de