Re: [6gip] wanted to ask as a software engineer

[Alexandre Petrescu <[e-mail]>]

Le 13/07/2022 à 17:37, Simon Leinen a écrit :
> Alexandre Petrescu writes:
>> Do you know what bandwidth is possible on a 5G smartphone?
>> (browse www.speedtest.net from a 5G smartphone)
> 
> Some numbers from the real world:
> 
> I've been doing a few tests with the Ookla Speedtest app on my Google
> Pixel 6 phone when connected to 5G service on one of the Swiss mobile
> networks (Sunrise/Yallo).
> 
> The download rates are often 250-300Mb/s.  Upload rates are much lower,
> typical values are 20Mb/s, but I have seen as low as 5Mb/s even when
> downloads are as fast as mentioned.  (OK, 5Mb/s is not too shabby, but
> the down/upload discrepancy impresses me.)

Thanks for the figures.

This 250-300mb/s looks high to me, used to a 4G max around 50mbit/s.

I will try to identify my own figures, but I have to ask someone close 
for a 5G smartphone to try.  I dont myself have a smartphone.

> The base RTT is relatively low (10-20ms), but can easily grow to
> 300-1000ms during download and (especially) upload tests.

Thanks for this report.

For comparison, I did hear about a minim 20ms on a satellite LEO 
Internet link (Starlink).  This is a point of jonction.

> 
> Sunrise seems to be using the 700, 1400, and 3500MHz bands for 5G.
> [citation needed]

I suspect the highest bandwidth is in the 3500MHz bands.

Alex

> 
> Cheers,