Has any one here taken a look at building a BTS?
There some interesting Baseband chips available:
http://www.octasic.com/en/applications/wireless/gsm_edge.php
It would avoid NDAs and maybe we could just get the transmitter.
Since we are not looking at building high availability stuff it could cut
costs to get more interest in developing the software.
P.S. There are transmitters that are being scraped by the telcos due to
upgrades.
Barnaby J Astles
Solutions Saminov inc
166 rue Cowie
Suite 201
Granby, QC, Canada
J2G 3V3
Cell: (450) 522-7153
Fax: (450) 372-8430
hello,
built 2 bs11 interconnect cables + termination today. but the second
bs11's not recongnised. i tried the 2-2 cfg-file, and mine. i want to
use only one trx per bts. my cfg-file look like this:
!
! OpenBSC configuration saved from vty
! !
password foo
!
line vty
no login
!
network
network country code 262
mobile network code 10
short name T-Net
long name Test-Netz
timer t3101 10
timer t3113 60
bts 0
type bs11
band GSM900
cell_identity 1
location_area_code 1
training_sequence_code 7
base_station_id_code 63
oml e1 line 0 timeslot 1 sub-slot full
oml e1 tei 25
trx 0
arfcn 121
max_power_red 0
rsl e1 line 0 timeslot 1 sub-slot full
rsl e1 tei 1
timeslot 0
phys_chan_config CCCH+SDCCH4
e1 line 0 timeslot 1 sub-slot full
timeslot 1
phys_chan_config TCH/F
e1 line 0 timeslot 2 sub-slot 1
timeslot 2
phys_chan_config TCH/F
e1 line 0 timeslot 2 sub-slot 2
timeslot 3
phys_chan_config TCH/F
e1 line 0 timeslot 2 sub-slot 3
timeslot 4
phys_chan_config TCH/F
e1 line 0 timeslot 3 sub-slot 0
timeslot 5
phys_chan_config TCH/F
e1 line 0 timeslot 3 sub-slot 1
timeslot 6
phys_chan_config TCH/F
e1 line 0 timeslot 3 sub-slot 2
timeslot 7
phys_chan_config TCH/F
e1 line 0 timeslot 3 sub-slot 3
bts 1
type bs11
band GSM900
location_area_code 2
training_sequence_code 7
base_station_id_code 63
oml e1 line 1 timeslot 4 sub-slot full
oml e1 tei 25
trx 0
arfcn 122
max_power_red 0
rsl e1 line 1 timeslot 4 sub-slot full
rsl e1 tei 1
timeslot 0
phys_chan_config CCCH+SDCCH4
e1 line 1 timeslot 5 sub-slot 0
timeslot 1
phys_chan_config SDCCH8
e1 line 1 timeslot 5 sub-slot 1
timeslot 2
phys_chan_config TCH/F
e1 line 1 timeslot 5 sub-slot 2
timeslot 3
phys_chan_config TCH/F
e1 line 1 timeslot 5 sub-slot 3
timeslot 4
phys_chan_config TCH/F
e1 line 1 timeslot 6 sub-slot 0
timeslot 5
phys_chan_config TCH/F
e1 line 1 timeslot 6 sub-slot 1
timeslot 6
phys_chan_config TCH/F
e1 line 1 timeslot 6 sub-slot 2
timeslot 7
phys_chan_config TCH/F
e1 line 1 timeslot 6 sub-slot 3
i modified the 2-2 cfg file in a way that made sense to me. when i
connect only the 2nd bs11 to the pc, it isnt recognised as well.
firmware is on, an due to people who works there, this bs11 was once
operational. did i forget any setup procedures maybe?
2nd problem: bs11_config
i tried bs11_config -p /dev/ttyUSB0 as described in the page, but seems
this device ttyUSB0 doesnt exist.the lmt cable is connected and telnet
localhost 4242 from other console also works.
3rd problem:
during bsc_hack running, i get strange messages. my 2 favorites are:
gsm04_08.c: 873 location updating reject on channel 0
abis_nm.c:1799 Invalid channel combination!!
is there any faq or something else, where these messages are explanined?
answers in german preferred. increases enormously the readability on my
pc.
T.
--
Wer Rechtschreibfehler findet, darf sie behalten!
did you push it? my head of sylvain/testing is:
commit cbf5ba125a70bd18c5919d51203d836fd26fa98a
[WIP] Voice IND
-----Ursprüngliche Nachricht-----
Von: openbsc-bounces(a)lists.gnumonks.org [mailto:openbsc-bounces@lists.gnumonks.org] Im Auftrag von Sylvain Munaut
Gesendet: Sonntag, 28. November 2010 20:58
An: OpenBSC list
Betreff: Optional cell reselection parameters setting
Hi,
I've just pushed a patch in sylvain/testing with vty commands (and
support code) to support settings things such as the Cell Reselection
Offset (which is in the re tst octet).
If someone could just have a quick look before I put it in master.
The main thing is the vty setting to support things like:
penalty time <20-620>
penalty time infinite
I had to create two commands it seems (can specify that an arg is
either a range or a keyword if I'm not mistaken).
Cheers,
Sylvain
Hello,
About introducing myself: I am a network engineer working in the fields of
VoIP and Radio Communications services at NEWITEC CONSULTING Tunisia (
www.newtechtn.com).
Some of my projects done are:
1- Integration of custom SCTP and M3UA layers into the Dialogic SS7 stack
for a french client.
2- Integration of a solution for SIP traversal over firewalls and nats.
3- Collaboration in the development of a GSM IP client (does
authentification to a GSM network with the classic method but over IP). This
work is a part of a roaming hub solution.
4- VoIP switching, billing and security.
If you find my work interesting, please involve me in the development of the
project.
Thank you.
Hi,
I've just pushed a patch in sylvain/testing with vty commands (and
support code) to support settings things such as the Cell Reselection
Offset (which is in the re tst octet).
If someone could just have a quick look before I put it in master.
The main thing is the vty setting to support things like:
penalty time <20-620>
penalty time infinite
I had to create two commands it seems (can specify that an arg is
either a range or a keyword if I'm not mistaken).
Cheers,
Sylvain
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Hi There,
It occured to me the other day that I have been spending many hours
sat next to my nanoBTS in a lab environment and have never given
thought about the amount of power that the device is outputting.
Looking through the bsc_hack config settings I can see the ms max
power setting, at present I have this setting set to 15. I am also not
sure at which levels to set my nominal power and max_power_red settings.
What are everyone's opinions on a safe power setting at which to set
the nanoBTS? Is 15 to high or low? What do other people have there
power settings set too? Does anyone have any reading material on the
wider health implications of using such a device as the nanoBTS in
close proximity to a person for long periods of time?
Many thanks for the help, advice and suggestions.
Matthew
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Hello,
Has anyone integrated or tested the integration of the three projects SCCP,
TCAP and MAP to build an SS7 stack?
What is the advancement of these projets? is it possible to use them in a
real network?
Any help is very appreciated.
Thank you.
Hello,
I have a problem in sccp.c.
537--543
udt->type = SCCP_MSG_TYPE_UDT;
udt->proto_class = class;
udt->variable_called = 3;
udt->variable_calling = 5 + out->gti_len;
if(out->use_poi) udt->variable_calling += 2;
udt->variable_data = 7 + out->gti_len + in->gti_len;
if(in->use_poi) udt->variable_calling += 2;
I add these two 'if' lines in the code. I'm not sure if it is right.
In source code, before it calls 'create_sccp_addr', it sets the length only
using gti_len. But in 'create_sccp_addr', if I use poi, the length should be
add 2.
Am I right?
OK so does anyone have used or knows where to get used BS11 GSM900 hardware
?
Barnaby J Astles
On Wed, Nov 24, 2010 at 20:04, Seungju Kim <admin(a)manateeshome.com> wrote:
> Look for someone in this mailing list. That will be the most doable way I
> think
>
> Sent from my iPhone
>
> On Nov 24, 2010, at 7:03 PM, Barnaby Astles <bjastles(a)gmail.com> wrote:
>
> Do you know where there are used ones ?
>
> Barnaby J Astles
>
>
> On Wed, Nov 24, 2010 at 14:00, Seungju Kim < <admin(a)manateeshome.com>
> admin(a)manateeshome.com> wrote:
>
>> looking for an used one or contacting manufacturer and ordering a new one
>>
>> Sent from my iPhone
>>
>> On Nov 24, 2010, at 12:48 PM, Barnaby Astles < <bjastles(a)gmail.com>
>> bjastles(a)gmail.com> wrote:
>>
>> Hello,
>>
>> This is a test to see if I can make it to the mail list.
>>
>> And a little question: If one wants to get involved in development, how
>> does one get a hold of some hardware?
>>
>> Barnaby J Astles
>> Solutions Saminov inc
>>
>> 166 rue Cowie
>> Suite 201
>> Granby, QC, Canada
>> J2G 3V3
>>
>> Cell: (450) 522-7153
>> Fax: (450) 372-8430
>>
>>
>
Do you know where there are used ones ?
Barnaby J Astles
On Wed, Nov 24, 2010 at 14:00, Seungju Kim <admin(a)manateeshome.com> wrote:
> looking for an used one or contacting manufacturer and ordering a new one
>
> Sent from my iPhone
>
> On Nov 24, 2010, at 12:48 PM, Barnaby Astles <bjastles(a)gmail.com> wrote:
>
> Hello,
>
> This is a test to see if I can make it to the mail list.
>
> And a little question: If one wants to get involved in development, how
> does one get a hold of some hardware?
>
> Barnaby J Astles
> Solutions Saminov inc
>
> 166 rue Cowie
> Suite 201
> Granby, QC, Canada
> J2G 3V3
>
> Cell: (450) 522-7153
> Fax: (450) 372-8430
>
>
