Dear osmocom developpers,
This is just to let you know that the Python library pycrate has a new home
: https://github.com/pycrate-org/pycrate. The packages on Pypi are now
feeded from there. This library can be used in many cases dealing with
mobile signalling.
I wanted to let you know, as even if I am not aware of any osmocom projects
depending on it, some of you may use the library from time to time, or
could have local applications depending on it.
Best Regards
Benoit
> I don't understand. This callback will be called with data you need to
write
> to the network. In case of MTP Level3 you will need to wrap that around
the
> msgb you got.
I means: is the interaction with mtp3 layer implemented (is sending sccp
data by mtp3 implemented by the library?)?
Also, what about the reception of data from mtp3 layer. is that implemented
in the sccp lib.
I am asking these questions because I see the code of mtp3 in the lib but no
significant call is present in the sccp part of the lib.
Thank you for your help.
Hi all,
Just wanted to share an issue and a quick workaround I found for it in case
anyone else has the same problem. I believe a cmd2 update is causing
pySim-shell to fail. After installing it on a fresh install of Ubuntu
Server 20.04 and getting the following error when I run "python3
pySim-shell -p0":
>Using PC/SC reader interface
>Autodetected card type: sysmoUSIM-SJS1
>AIDs on card:
> USIM: a0000000871002ffffffff8907090000
>Traceback (most recent call last):
> File "pySim-shell.py", line 512, in <module>
> app = PysimApp(card, rs, opts.script)
> File "pySim-shell.py", line 59, in __init__
> super().__init__(persistent_history_file='~/.pysim_shell_history',
allow_cli_args=False, use_ipython=True, auto_load_commands=False,
command_sets=basic_commands, >startup_script=script)
>TypeError: __init__() got an unexpected keyword argument 'use_ipython'
If you run into this you can fix it by uninstalling cmd2 and reinstalling
cmd2 with "pip3 install cmd2==1.5".
Best,
Bryan
On Tue, Jun 28, 2016 at 10:05:28AM +0200, Harald Welte wrote:
> [translated from german]
> is it certain that we switch a channel to PDCH only when
> gprs mode != none?
A TS can be GSM_PCHAN_TCH_F_PDCH; those are the only ones for which we
send a PDCH ACT message.
We send a PDCH ACT message
- during init (CHANNEL OML's state changed to enabled -> send PDCH ACT),
- and upon channel release ack when pchan == GSM_PCHAN_TCH_F_PDCH.
So the question is, when we receive a channel release ack, could that be
the PDCH release and we switch PDCH right back on by accident? No, because
we only receive a chan rel ack when the *TCH/F* is being released.
That is because the PDCH release is initiated "internally" from the PDCH
DEACT, and thus this condition in common/rsl.c rsl_tx_rf_rel_ack() catches
on, which existed before dyn PDCH:
if (lchan->rel_act_kind != LCHAN_REL_ACT_RSL) {
LOGP(DRSL, LOGL_NOTICE, "%s not sending REL ACK\n",
gsm_lchan_name(lchan));
return 0;
}
In rsl_rx_rf_chan_rel() the rel_act_kind is set to LCHAN_REL_ACT_RSL, but
not in the rsl_rx_dyn_pdch().
This is analogous to the ip.access way -- the ip.access nanobts replies to
a PDCH DEACT with a PDCH DEACT ACK and doesn't send a separate channel
release ack.
Maybe we could set rel_act_kind to some new LCHAN_REL_ACT_IPAC_DYN_PDCH
for clarity? (But we shouldn't actually send a release ack, to stay
compatible.)
Even though it works as-is, we should indeed add another flag check:
- We do check the flags that no ACT/DEACT is already pending;
- And we do send a PDCH DEACT only if ts->flags & TS_F_PDCH_ACTIVE;
- But we would send a PDCH ACT despite ts->flags & TS_F_PDCH_ACTIVE.
This should never happen, but it would make sense to ensure that.
~Neels
Hi,
I am using osmo-bts-trx with a B205-mini-i, using only CS services. I am currently running the following elements on Ubuntu 22.04, all built from source from the latest version:
- osmo-trx-uhd
- osmo-bts-trx
- osmo-bsc
- osmo-msc
- osmo-hlr
- osmo-mgw
- osmo-stp
- osmo-sip-connector
I have been testing the range of the cell, and I can't seem to get more than around 50 meters, even when I transmit at ~21 dBm using a power amplifier at TX. I find this range too low, since I am used to getting 200-300 meters out of the box when running 4G and 5G networks with the same device, so I suspect I am not configuring the network correctly. I've tried looking at every parameter, so far I've only noticed improvements when setting the min-qual-* to the minimum values and ms_max_power to the maximum.
These are my configs for TRX, BTS and BSC:
OsmoTRX:
```
log stderr
...
!
line vty
no login
!
cpu-sched
policy rr 18
trx
bind-ip 127.0.0.1
remote-ip 127.0.0.1
egprs disable
tx-sps 4
rx-sps 4
clock-ref gpsdo
chan 0
```
```
!
! OsmoBTS () configuration saved from vty
!!
!
log stderr
...
!
line vty
no login
!
phy 0
instance 0
osmotrx tx-attenuation 0
osmotrx rx-gain 50
osmotrx ip local 127.0.0.1
osmotrx ip remote 127.0.0.1
bts 0
band GSM900
ipa unit-id 1234 0
oml remote-ip 127.0.0.1
gsmtap-remote-host 127.0.0.1
gsmtap-sapi enable-all
min-qual-rach -100
min-qual-norm -100
trx 0
phy 0 instance 0
nominal-tx-power 10
```
```
! osmo-bsc default configuration
! (assumes STP to run on 127.0.0.1 and uses default point codes)
!
log stderr
logging color 1
logging print category-hex 0
logging print category 1
logging timestamp 0
logging print file basename last
logging print level 1
e1_input
e1_line 0 driver ipa
network
network country code 1
mobile network code 1
encryption a5 0
neci 1
paging any use tch 0
handover 0
handover algorithm 1
handover1 window rxlev averaging 10
handover1 window rxqual averaging 1
handover1 window rxlev neighbor averaging 10
handover1 power budget interval 6
handover1 power budget hysteresis 3
handover1 maximum distance 9999
! T3212 is in units of 6min, so below we set 5 * 6 = 30min
timer net T3212 5
mgw 0
remote-ip 127.0.0.1
remote-port 2427
local-port 2727
bts 0
type osmo-bts
band GSM900
cell_identity 1234
location_area_code 0x0001
base_station_id_code 63
ms max power 40
!default: cell reselection hysteresis 4
cell reselection hysteresis 14
radio-link-timeout 32
channel allocator mode set-all ascending
rxlev access min 0
rach tx integer 9
rach max transmission 7
channel-description attach 1
channel-description bs-pa-mfrms 5
channel-description bs-ag-blks-res 1
early-classmark-sending forbidden
ipa unit-id 1234 0
oml ipa stream-id 255 line 0
codec-support fr
gprs mode none
trx 0
rf_locked 0
! 945M DL/900M UL
arfcn 50
nominal power 10
max_power_red 0
rsl e1 tei 0
timeslot 0
phys_chan_config CCCH+SDCCH4
hopping enabled 0
timeslot 1
phys_chan_config TCH/F
hopping enabled 0
timeslot 2
phys_chan_config TCH/F
hopping enabled 0
timeslot 3
phys_chan_config TCH/F
hopping enabled 0
timeslot 4
phys_chan_config TCH/F
hopping enabled 0
timeslot 5
phys_chan_config TCH/F
hopping enabled 0
timeslot 6
phys_chan_config TCH/F
hopping enabled 0
timeslot 7
phys_chan_config TCH/F
hopping enabled 0
ms-power-control
mode dyn-bts
rxlev-thresh lower 0 upper 63
msc 0
allow-emergency allow
amr-config 12_2k forbidden
amr-config 10_2k forbidden
amr-config 7_95k forbidden
amr-config 7_40k forbidden
amr-config 6_70k forbidden
amr-config 5_90k allowed
amr-config 5_15k forbidden
amr-config 4_75k forbidden
bsc
mid-call-timeout 0
```
You might notice I am using the gpsdo as the clock-ref. That's because I've also tried with a B210 with the internal GPSDO, but the results are the same.
Thanks in advance,
Jonathan Pichel
Hello,
How can I utilize the iCE40 E1 USB adapter to transition from E1 to IP in a
GSM network, connecting a physical Siemens BSC (which has a BTS
connected) to OsmoMSC?
Only the BTS and BSC are physical. I already have osmo-e1d installed.
Should I use osmo-e1d or dahdi version for this transition?
What would be the best approach to begin the process?
Regards,
Alina
Hi
Do you know if the packet osmo-smlc should work with osmo-bsc, osmo-stp last versions?
I just tested, saw errors and tried to debug but perhaps I made mistakes (link, as, asp are up between BSC and SMLC via osmo-stp)
osmo-smlc 0.2.4
DLSCCP DEBUG <0011> sccp_user.c:176 Delivering N-PCSTATE.indication to SCCP User 'SCCP Management'
DLSCCP DEBUG <0011> sccp_scmg.c:298 Ignoring SCCP user primitive N-PCSTATE.indication
DLSCCP DEBUG <0011> sccp_user.c:176 Delivering N-PCSTATE.indication to SCCP User 'OsmoSMLC-Lb'
DLB ERROR <0002> sccp_lb_inst.c:167 (Lb) sccp_lb_sap_up(N-PCSTATE.indication) unsupported
Many thanks in advance
Best regards
Jean-Marc
