Re: [Openbts-discuss] First installation problems

[Pierre B. <agm...@ag...>]

Hi Balthasar,


I see that you use UHD master.
Consider using a released UHD version, even the latest one, such as
release_003_009_002 ; as it is known to work with OpenBTS
To do this, uninstall the UHD you built (ensure there is no remaining
library installed /usr/local/lib/libuhd*), checkout a released
version, build and install it. Then, rebuild OpenBTS.
You might need to unplug and plug back your SDR hardware to be able to
execute uhd_usrp_probe again, as the installed FPGA image and firmware
can mismatch your UHD setup.

Then, can you share some information about your hardware setup ? What
kind of antennas are used, how are they placed ?

2016-01-23 22:10 GMT+01:00 Balthasar Indermuehle <ba...@in...>:
> Hi guys
>
> I'm a bit at a loss here... Still no luck registering the phone on my
> network. The O'Reilly book doesn't provide a lot of debugging help for my
> problem, do any of you have some pointers / ideas / resources that could
> assist me in debugging this?
>
> The most useful part in the book is that sentence likening RF engineering to
> black magic, and stating that by the time we're done reading it we will be
> surprised that it works at all. I'm still hopeful to get there eventually...
>
> Cheers
>
> Balt
>
>
> On Saturday, 23 January 2016, Balthasar Indermuehle <ba...@in...> wrote:
>>
>> I also reset the MCC and MNC codes to 001/01, which makes the iPhone see
>> the network as Test PLMN 1-1
>>
>> Do I need to change the colour code?
>>
>> Still no luck and getting this false SOS Only indication when connected
>> with no welcome or rejection SMS being sent. Trying to send an SMS to 411
>> results in a send error.
>>
>> On Saturday, 23 January 2016, Balthasar Indermuehle <ba...@in...>
>> wrote:
>>>
>>> Yes, I even rebooted the computer.
>>>
>>> On Saturday, 23 January 2016, at ion Pandeya <nee...@et...>
>>> wrote:
>>>>
>>>> After enabling open registration, you need to re-start OpenBTS. Did you
>>>> already do this?
>>>>
>>>>
>>>>
>>>> On 22 January 2016 at 03:40, Balthasar Indermuehle <ba...@in...>
>>>> wrote:
>>>>>
>>>>> Yes I think so. Am I missing anything?
>>>>>
>>>>> OpenBTS> config Control.LUR.Open
>>>>> Control.LUR.OpenRegistration .*
>>>>> Control.LUR.OpenRegistration.Message You're in a radio quiet zone. Turn
>>>>> off
>>>>> Control.LUR.OpenRegistration.Reject (disabled)     [default]
>>>>> Control.LUR.OpenRegistration.ShortCode 101     [default]
>>>>>
>>>>>
>>>>>
>>>>> On 22 January 2016 at 20:55, Ralph A. Schmid, dk5ras <ra...@sc...>
>>>>> wrote:
>>>>> > Did you enable
>>>>> open registration, to allow all phones logging on without
>>>>> > first manually registering their IMSI?
>>>>> >
>>>>> > Ralph.
>>>>> >
>>>>> >> -----Original Message-----
>>>>> >> From: Balthasar Indermuehle [mailto:ba...@in...]
>>>>> >> Sent: Friday, January 22, 2016 7:51 AM
>>>>> >> To: Tom Tsou
>>>>> >> Cc: OpenBTS Discuss
>>>>> >> Subject: Re: [Openbts-discuss] First installation problems
>>>>> >>
>>>>> >> Back at the office now, and it seems to transmit the cell
>>>>> >> information just
>>>>> > fine.
>>>>> >> I can see and decode the OpenBTS signal with the other B200 running
>>>>> >> airspy/gsmprobe, it reports the correct MCC/MNC/LAC/CID that I've
>>>>> >> set via
>>>>> >> the OpenBTSCLI interface.
>>>>> >>
>>>>> >> With the iPhone I can see and manually select my network. However,
>>>>> >> when I
>>>>> >> select it, the iPhone 5 displays first No Service for 10-20 seconds,
>>>>> >> then
>>>>> > SOS
>>>>> >> Only, and stays on SOS Only with my network selected (which would be
>>>>> >> OK
>>>>> >> as the IMSI is not yet registered on that network).
>>>>> >> Starting the iPhone engineering console never completes (not sure if
>>>>> > that's
>>>>> >> by design, i.e. you need to be a subscriber to get the network info,
>>>>> >> probably).
>>>>> >>
>>>>> >> On the OpenBTS side nothing seems to happen at all. stats shows no
>>>>> >> count
>>>>> >> increase on anything other than the OpenBTSCLI commands. The power,
>>>>> >> gain
>>>>> >> and noise all seem to be in OK ranges. Looking at the spectrum I
>>>>> >> selected
>>>>> > it is
>>>>> >> clean before the access point is started (see spectrum plot here:
>>>>> >> https://cloud.inside.net/index.php/s/k4zQRGTcGxzrjsk, ARFCN 1 is at
>>>>> >> 935.2 MHz, left most peak in the plot. At the bottom of the
>>>>> >> waterfall you
>>>>> > can
>>>>> >> see the clean spectrum before I switched it on, there's nothing else
>>>>> > there).
>>>>> >>
>>>>> >> OpenBTS> power
>>>>> >> current downlink power -20 dB wrt full scale
>>>>> >>
>>>>> >> OpenBTS> rxgain
>>>>> >> current RX gain is 10 dB
>>>>> >>
>>>>> >> OpenBTS> noise
>>>>> >> noise RSSI is -79 dB wrt full scale
>>>>> >> MS RSSI target is -50 dB wrt full scale
>>>>> >> INFO: the current noise level is acceptable.
>>>>> >>
>>>>> >> tmsis displays nothing. About once every 30 odd seconds, this log
>>>>> >> entry is
>>>>> >> made in syslog:
>>>>> >> Jan 22 17:34:49 x transceiver: NOTICE 8449:9083
>>>>> >> 2016-01-22T17:34:49.7
>>>>> >> Transceiver.cpp:192:pushRadioVector: dumping STALE burst in
>>>>> >> TRX->USRP
>>>>> >> interface
>>>>> >>
>>>>> >> Not sure if that says anything.
>>>>> >>
>>>>> >> What else can I check?
>>>>> >>
>>>>> >>
>>>>> >> On 22 January 2016 at 12:41, Balthasar Indermuehle <ba...@in...>
>>>>> >> wrote:
>>>>> >> > Many thanks for your help Tom! I think the patch did the trick.
>>>>> >> >
>>>>> >> > I can now run the OpenBTSCLI and set up the network, I can see the
>>>>> >> > B200 putting out power at the right frequencies (benefits of
>>>>> >> > having
>>>>> >> > two I guess!).
>>>>> >> >
>>>>> >> > On 22 January 2016 at 11:17, Tom Tsou <tom...@et...> wrote:
>>>>> >> >> On Thu, Jan 21, 2016 at 4:01 PM, Balthasar Indermuehle
>>>>> >> <ba...@in...> wrote:
>>>>> >> >>> Jan 22 10:56:33 x openbts: EMERG 3594:3603 2016-01-22T10:56:33.5
>>>>> >> >>> OpenBTS.cpp:185:startTransceiver: Transceiver quit with status
>>>>> >> >>> 32512.
>>>>> >> >>> Exiting.
>>>>> >> >>
>>>>> >> >> There is no way to pass device arguments into OpenBTS to pass
>>>>> >> >> down to
>>>>> >> >> transceiver.
>>>>> >> >>
>>>>> >> >> I would disable the OpenBTS transceiver start and run the
>>>>> >> >> transceiver
>>>>> >> >> manually from the command line with the device arguments.
>>>>> >> >>
>>>>> >> >>   -TT
>>>>> >>
>>>>> >>
>>>>> >
>>>>> > ----------------------------------------------------------------------------
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>>>>>
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>>>>
>
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