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tweiss86
tweiss86
6/1/2019 | 10:41:27 AM
Gogo 5G
Hi, Just to clarify, the 5G ground based network for CONUS/Canada/Alaska (current footprint) is totally separate from the SATCOM network, sorry if it was implied otherwise.  REF the "3G to 5G", that is within the context of Gogo's previous plans to use 4G in the 2.4GHz band that were interrupted by the trade brew-ha-ha with China. Enough time passed such that 5G is now a viable option in 2021. So, within that context, we are 'skipping' 4G. We are well aware of the status of SA vs NSA but as our CEO says we have alot of smart people working on that!
anshulgrover
anshulgrover
5/31/2019 | 12:35:53 AM
Re: Strange choice
I want to add up a couple of more points to this discussion:

 
  • The satellite communication, if used for wireless services have additional challanges of transmitting the wireless signals from an original 3G/LTE/5G base station or transponder to satellite without considerable atmospheric losses along with keeping the Layer1 characteristics (Channel Quality, HARQ) of signals intact. Given 5G may work with very high frequencies (mmWave) which have small distance travel capabilities, sending the signals to a satellite shall be even more difficult probably. The power level of signals may also need to be amplified for feeding to the satellites.
  • Gogo's claim that they may move from 3G to 5G directly may be impractical in today's scenario where most of the 5G solutions work in Non-Standalone (NSA) mode comprising of primary RAN node and complete LTE EPC as core backhaul. Given they don't have 4G infra in place, this becomes even more difficult. Better option would be to let Standalone 5G mature which may take couple of more years and adapt to it with baseline infra at ground for serving their on-the-air customers.
macemoneta
macemoneta
5/30/2019 | 2:56:10 PM
Re: Strange choice
The LEO satelites are moving at 17,000 mph (per FCC filing), so the aircraft are essentially stationary to the constellation. At least in the case of Starlink, the phased array antenna are designed for tracking moving targets like aircraft, ships, and vehicles. They have to be, because the satellites are moving and handing off communications constantly.
Mike Dano
Mike Dano
5/30/2019 | 2:41:01 PM
Re: Strange choice
That's a good question. I don't know the answer, but I suspect it might have to do with the fact that planes travel really fast, and those low-Earth orbit satellites might not be able to keep up.
macemoneta
macemoneta
5/30/2019 | 2:20:33 PM
Strange choice
Deploying short-range infrastructure nationwide to try to communicate with aircraft at up to 6.6 miles of altitude seems like an odd choice. Why not forego the infrasructure cost and use a satellite constellation like Starlink or OneWeb?


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