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With "show bts 0" all objects were still listed as dependency.
Once the BTS has been started.. move all the other objects into
the enabled state. Our OpenBSC OML code doesn't care but people
using the VTY to inspect state will be more happy.
One day... we will create proper statemachines inside the BTS
and the BSC instead of changing the state in the BTS impl.
Fixes: ONW#1330
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We would never transition the sitemanager to anything. Our SW
does not support SW activation's so we are always ready.
Related: ONW#1330
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OsmoBSC> show bts 0
...
GPRS NSVC1: Oper 'Disabled', Admin 'unknown 0x0', Avail 'Off line'
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The service file will prevent a re-launch of the sysmobts.service
in case the main process exits with '1'. In case the ethernet is
not available yet the routine would fail and the sysmobts process
will not be restarted.
unable to connect/bind socket: Network is unreachable
<000f> input/ipaccess.c:885 cannot open OML BTS link: Network is unreachable
unable to connect to BSC
root@sysmobts-v2:~# echo $?
2
Fixes: SYS#736
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libosmo-abis doesn't make it easy to have these parameters
as const.. just declare it non-const in the api. We pass
a static string but we know it will not be modified.
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tch.c: In function 'l1_to_rtppayload_amr':
tch.c:247:29: warning: unused variable 'amr_mrc' [-Wunused-variable]
struct amr_multirate_conf *amr_mrc = &lchan->tch.amr_mr;
^
tch.c: In function 'rtppayload_to_l1_amr':
tch.c:335:10: warning: unused variable 'amr_if2_core_len' [-Wunused-variable]
uint8_t amr_if2_core_len = payload_len - 2;
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SI 5*/6 require L2 header of 0x03,0x03. All SI might be less than 23
octets, so they need to be filled with 0x2b.
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We use the completion call-back from L1 to compare the instructed
TRX board output power with the actual value as reported back from
L1.
Right now we only print an error message in case the values disagree.
In the future we might want to either use that value as part of our
calculation or send an OML alarm report to the BSC.
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This reverts commit d0866fe4773918381c80c7362ef2d043845ebf54, as it
was a bit premature. We need to address this more properly.
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We do not have the vty test script to do roundtrip testing. There
is no max-initinal-pout, then there was a typo inside 'initial' and
for the relative step size the unit is dB/mdB. Fix both of that.
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Back in March 2013, some structures and defines related to decoded
measurement reports have been moved from openbsc to libosmocore
(libosmocore e128f4663104ed64e33e362cff2566f36d65e658) so that they can
be used also from osmo-bts. This finally follows up on that.
You need openbsc 7ff4f0e0fc692bfab829da50edb104e58b271e7e or later.
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This sysmobts specific control interface allows for clock calibration
from an external program by means of the "trx.0.clock-info" and
"trx.0.clock-correction" values.
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When enqueueing a command towards the L1, we can now pass along
a private data pointer, which then gets passed to the call-back
upon completion.
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... which is now defined in libosmocore
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Using this control interface, an external program can request
attentuation of the transmitter for thermal management reasons. The
external application doesn't have to know anthing about the actual
transmit power, but it can just configure a certian value of milli-dB
(1/10000 bel) and update (increase/decrease) that value depending on
the thermal environment.
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In order to support transmit power reduction by thermal management
as well as the variety of new internal / external PA configurations
of BTSs, we need a slightly more complex system.
Also, as at high power a single dB can be quite a big difference,
we are now doing all computations in milli-dB(m), i.e. 1/10000 bel.
Ramping is now used both for up and down ramping, as that is useful in
cases where you want to gracefully shut down a cell by shrinking its
radius, gradually handing over subscribers to neighboring cells.
Furthermore, this code is becoming part of the 'common' codebase, as it
is not really specific to how sysmobts is working.
The user can specify a single aggregate value for external system
gain/attenuation. Let's say you have 1dB loss of antenna cable, so you
can put that as 'user-gain -1' into the config, which means that a
'transmit power of 20dBm' will be compensatet for that and the TRX is
instructed to output 21dBm to compensate the cable loss. Similarly,
external PAs can be described by a positive user-gain.
One of the next steps will be to communicate those values and the
nominal power capability of the specific BTS to the BSC, so the BSC will
automatically show correct signal levels in the VTY and log files.
The code includes provisions for future extensions regarding
* an external and an internal PA with calibration tables
* a thermal attenuation setting to be controlled by the site manager
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... which is now available from gsm_data_shared.[ch] of openbsc
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We can use this on both slave and master. But only have the
master switch on the PA.
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The PA will be unconditionally turned. This makes it possible
that in case of a crash, the PA will be turned on and then we
will do the temperature measurement and turn it off again. There
are no known crashes with the sysmobts-mgr right now so the risk
seems to be okay. In case we can't switch off the PA we have no
way to escalate it right now. We have not seen a dead uc either
so the risk is okay as well.
We can't switch the PA back on once we reach the normal level
as the BTS might transmit with full power and we would need more
current than the power supply/rails can carry. So leave the
system off right now.
What is missing is to use the OML router to actually inform
the BSC that something bad has happened at the BTS.
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Check the temperature and move between "NORMAL", "WARNING"
and "CRITICAL" state. We will only return from CRITICAL to
WARNING when the temperature has significantly changed, and
when being in state "WARNING" we enter an intermediate state
to allow an easy hysteris.
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We haven't done anything with the result of the micro controller
query and querying every six hours for the temperature of the
system will not help us. We need to query the temperatures more
frequently but avoid writing to the eeprom too frequently so we
will start another timer for that.
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The idea is that for different parts of the system we can define
thresholds for warning and critical (severe) temperate thresholds.
And once any of these temperatures is reached we will execute an
action. When crossing from NORMAL to WARNING or WARNING to SEVERE
we will need to apply some hysteris before switching back to the
lower level. E.g. when being SEVERE mode, at least wait until we
are below the warning level again. Besides being able to switch
off things we could start reducing the transmit power of the system
until the system is cold enough again.
No action is implemented so far, everything is varpoware!
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Fix the build (provide empty stubs) when the header file is not
present.
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We want to know which componets are enabled and the voltage and
current used by the components.
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Read the sensors that are always present and the ones that
are only present on the sysmoBTS 2050.
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Use it for the ipaccess-find response and for the sysmobts
classification code. This can be used by the vty in a second.
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Initialize the ucinfo with an invalid fd to prevent writing
on fd=0 by accident.
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Move the init and polling into the sysmoBTS related part. In the
future we should have _one_ temperature control.
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Move the code to a separate file to keep things nicely apart
of each other.
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Add VTY support to the manager. This way we can interactively
inspect the state of the system and trigger events.
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