23 Jan
2014
23 Jan
'14
7:12 p.m.
OpenBTS supports GPRS, but at least for me it does not work very reliably, I consider this
only a proof of concept. While voice/SMS range is up to 200m, GPRS breaks down after 5m
(!) distance, and the connection stalls after a while, requiring a restart of OpenBTS. I
am using an USRP1 with WBX board.
Ralph.
From: openbsc-bounces(a)lists.osmocom.org [mailto:openbsc-bounces@lists.osmocom.org] On
Behalf Of Sipos Csaba
Sent: Thursday, 23 January, 2014 18:37
To: Don Fanning
Cc: openbsc(a)lists.osmocom.org
Subject: Re[2]: GPRS, EDGE support
Hi Don,
Thanks for the answer.
THe problem with nanobts that it is unaccessible, and even when it turns up on ebay, it
costs a fortune.
I'd rather pay that fortune for an USRP or half that fortune for a bladerf, and I will
have an SDR which I can use not only as a BTS.
So, at the moment GPRS/EDGE is only possible with nanoBTS? What about USRP or BladeRF
running OpenBTS?
BR,
Csaba
There has been a working GPRS stack for a while now:
http://openbsc.osmocom.org/trac/wiki/OpenBSC_GPRS
As for USRP or OpenBTS, I cannot comment upon having never used either platform.
23 Jan
23 Jan
11 p.m.
New subject: GPRS, EDGE support
Ralph -
I realize this is off topic, but if you have such severe range differences between CS and
PS performance, it is probably a GPRS uplink power control configuration problem.
Note: I am no longer affiliated with Range Networks, just trying to be helpful.
— David
On Jan 23, 2014, at 20:12, Ralph A. Schmid, dk5ras <ralph(a)schmid.xxx> wrote:
OpenBTS supports GPRS, but at least for me it does not
work very reliably, I consider this only a proof of concept. While voice/SMS range is up
to 200m, GPRS breaks down after 5m (!) distance, and the connection stalls after a while,
requiring a restart of OpenBTS. I am using an USRP1 with WBX board.
Ralph.
24 Jan
24 Jan
5:33 a.m.
New subject: GPRS, EDGE support
Yes, this also is my idea, but configuration of this is somehow difficult, and I do not
get clear, reliable results from changing the parameters.
I have noticed that you're not a "Ranger" anymore; hopefully your broad
knowledge is still available for the GSM world :)
Ralph.
From: David A. Burgess [mailto:dburgess@jcis.net]
Sent: Thursday, 23 January, 2014 23:01
To: Ralph A. Schmid, dk5ras
Cc: metro4; Don Fanning; openbsc(a)lists.osmocom.org
Subject: Re: GPRS, EDGE support
Ralph -
I realize this is off topic, but if you have such severe range differences between CS and
PS performance, it is probably a GPRS uplink power control configuration problem.
Note: I am no longer affiliated with Range Networks, just trying to be helpful.
- David
On Jan 23, 2014, at 20:12, Ralph A. Schmid, dk5ras <ralph(a)schmid.xxx> wrote:
OpenBTS supports GPRS, but at least for me it does not work very reliably, I consider this
only a proof of concept. While voice/SMS range is up to 200m, GPRS breaks down after 5m
(!) distance, and the connection stalls after a while, requiring a restart of OpenBTS. I
am using an USRP1 with WBX board.
Ralph.
4166
days inactive
4167
days old
2 comments
2 participants
participants (2)
-
David A. Burgess -
Ralph A. Schmid, dk5ras