[Bloat] mobile broadband buffer bloat

Mikael Abrahamsson swmike at swm.pp.se
Fri Nov 1 08:48:15 EDT 2013


On Thu, 31 Oct 2013, Dave Taht wrote:

> I'm really impressed you can get ~72Mbit down and ~4Mbit up. (closer to 
> 8 up when you consider acks) Note also the relationship between 
> bandwidth and latency at T+22...

http://www.induowireless.com/nu/gsm-3g-4g-frekvensband/

Basically the swedish operators have more frequencies available to them 
than the US ones, and the country is more sparsely populated. Especially 
the 20Mhz available per operator in 2600MHz makes a huge difference. Even 
initial deployment of 4G in Sweden meant one was able to regularily get 80 
megabit/s of download speed. Now with a lot of users this is of course 
less, but sometimes if you're alone in the cell you can still get this. 
I'm actually surprised that they only get 8 up, usually much more up speed 
should be possible.

(I used to work for one of the swedish mobile operators)

-- 
Mikael Abrahamsson    email: swmike at swm.pp.se



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