ubuntu-phone team mailing list archive

[Michael Zanetti <michael.zanetti@xxxxxxxxxxxxx>]

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On 22.04.2015 13:15, Wayne Ward wrote:
> Thats a relief its funny how it used to show 2g 3g on the nexus 5
> im probably going to flash it when vivid becomes available instead
> of using reset phone option as im sure it resets the phone but not
> the mobile sim stuff ?

If I understand correctly HSPA is actually better than 3G :) It is 3G
with some "High Speed" extensions. Similar as EDGE is "Enhanced Data
rates for GSM Evolution", an upgrade to 2G, also referred to as 2.5G.

Looking at the specs of the devices, it looks like the Nexus 5 has
"only" HSDPA, which would only offer the high speed extensions for the
down link, but not for the uplink while the bq claims to support
HSPA+, in both directions. That could well be the reason why the
indicator shows 3G on one, but H on the other.

That said, I'm not a total expert on this field, so take it with a
grain of salt, but at least it would match with those:

http://www.gsmarena.com/lg_nexus_5-5705.php
http://www.bq.com/gb/products/aquaris-e4-5.html

https://en.wikipedia.org/wiki/2G
https://en.wikipedia.org/wiki/Enhanced_Data_Rates_for_GSM_Evolution
https://en.wikipedia.org/wiki/3G
https://en.wikipedia.org/wiki/High_Speed_Packet_Access

Br,
Michael

> 
> Wayne
> 
> On 22/04/15 12:00, Jonas Drange wrote:
>> On 22 April 2015 at 12:02, Wayne Ward <info@xxxxxxxxxxxxxxx 
>> <mailto:info@xxxxxxxxxxxxxxx>> wrote:
>> 
>> I have the same problem with my connections, ive also used to
>> get 2g 3g on my nexus 5 but on my bq with two sims ive never seen
>> 2 or 3 g just E or H
>> 
>> ​I believe H is High Speed Packet Access (HSPA) [1] which is 3G.
>> 
>> [1] https://en.wikipedia.org/wiki/High_Speed_Packet_Access​;
>> 
> 
> 
> 
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