First the cached CMD sent (struct trx_ctrl_msg) is reworked to have the
cmdname and the params in different buffers for easier comparison with
RSP later.
For the receive path (trx_ctrl_read_cb), new function helpers are added
to parse the buffer into cmdname+params+code (parse_rsp) and to compare
if a given RSP matches the current CMD we sent (cmd_matches_rsp).
The reasoning behind this patch is that a way to check for parameters
when receiving a RSP will be needed in future work, as before this patch
checking of parameters is ignored. This commit is a preparation for commit
to check for duplicated responses.
Change-Id: I2474cbc3e4457cf04f78e1c168768295e1132034
The move includes a small logic change: If there's a mismatch between
the rsp and the cmd, now we bts_shutdown instead of blindly skipping
expected RSP and continuing with sending the next CMD in the queue. The
change is specially not a problem since next patches are improving the
logic furthermore to account for duplicates, different parameters, etc.
Change-Id: I7018ded23fe51f364f248ade111aaa80ef46187e
While debugging other protocol/timing issues between osmobts-trx and osmo-trx,
I found that sometimes two consecutives "POWER OFF" commands are
enqueued and sent to osmo-trx.
There's no point in doing so, as the write queue already maintains state
and retries the command until a RSP is received, then goes for the next
one.
With this change we hence improve timing response as we don't need to
wait for the second command to be processed, and on top we get cleaner
logs and simplified states which are easier to debug.
Change-Id: Ib6a5e7bfac8bc5e1b372da6a1f801c07a3d5ebb7
The upper layers (L1SAP, the common part of L1) *always* require frame
numbers in the uplink direction to be reported as the frame number of
the *first* burst, not the last burst of a given block.
This is particularly important in the case of passing up measurement
information, as we use this frame number to detect if the measurement
interval for that specific timeslot has just ended (and hence we must
process the measurements and send an uplink measurement report to the
BSC.
Before this patch, the measurement results were reported with the *last*
frame number, which caused the common/measurement.c code never detect
the end of a measurement window.
On TS2, tons of the following log messages were observed:
<0004> measurement.c:199 (bts=0,trx=0,ts=2,ss=0) no space for uplink measurement, num_ul_meas=104
With this patch, it behves as expected: the measurements of 25 blocks
(= 100 bursts) are aggregated, after which point the report is computed
and sent. Subsequently, num_ul_meas is reset to 0 and the cycle
restarts.
Related: OS#2329
Change-Id: I1065ae9c400bb5240a63ab8213aee59aeb9ceeff
Almost all log statements in scheduler_trx.c were using the wrong
logging subsystem. Let's fix this. Also, make it more obvious from
the log subsystem help text
Change-Id: I4312f8ab0414eb38db0d62f05c95ab961f500c14
In trx_clk_read_cb(), when calling phy_instance_by_num(), that
function might in error cases return a NULL phy-instance. Let's
put an OSMO_ASSERT() there as safeguard to avoid NULL dereference
when dereferencing pinst->trx->bts.
Fixes: Coverity CID#178657
Change-Id: If6b6b45380368e9ee9e03ca1eb7ac56c21e72b03
In rx_tchf_fn(), if gsm0503_tch_fr_decode() returns a negative
result, we cannot use that result as length argument to
osmo_fr_check_sid()
Change-Id: Ic4080b5bf6c865be3333f923f19a2340e1e272c8
Fixes: Coverity CID#178659
We unconditionally pass "p+1" into sscanf() despite not knowing
if 'p' is NULL or not.
Change-Id: I40a49c3feb3b55ef577eebd7d567afdbcfe0d624
Fixes: Coverity CID#178661
There's a lot of pointer arithmetic in trx_ctrl_read_cb which is
not so nice. While I believe the current code is safe, Coverity
raises "CID 178665: Insecure data handling (INTEGER_OVERFLOW)"
regardin the use of rsp_len in the strcmp().
Let's put some OSMO_ASSERT() in front and hope that makes Coverity
happy.
Change-Id: I5a9b3307f83cdde7c8e9f66932446604f5623b05
On 'write file':
- Write 'osmotrx' before 'maxdly' and 'maxdlynb' (broken since "Introduce new
phy_link and phy_instance abstraction"
d784e50747)
- Fix indenting of 'write file' output, command 'osmotrx timing-advance-loop',
had a stray space in case there is not a 'no' preceding it.
Add some missing instances of OSMOTRX_STR doc strings.
examples/osmo-bts.cfg:
- Drop 'settsc', the command no longer exists.
- Fix indenting of 'osmotrx rx-gain' command.
osmo-bts does not feature VTY tests, so it is pointless to add example files to
test these fixes. We should probably add VTY tests separately. However, I have
briefly tested manually (and hence found all of these issues).
Change-Id: I018eaef40345bfa26e12eb7d09e83a52596c1000
* copy-paste gsm_data_shared.* from OpenBSC master
* remove corresponding configure check and option
* remove .deb dependency
Actual refactoring with removal of unnecessary structures/parts, moving
common OpenBSC/OsmoBSC parts into libraries etc. are left for further
patches.
Current patch will make coexistence with *BSC easier and will simplify
our build infrastructure.
Change-Id: I9f004fb5c4c1db29d4792dfd281d388c7063da13
Related: OS#1923
* do not deactivate lchan when called with LCHAN_REL_ACT_REACT
* add fixme comment
It's unclear yet if any special steps are required for osmo-bts-trx so
let's just make it compatible with setups [1] using BS_AG_BLKS_RES != 1
for now.
Background: CCCH is auto activated by some OsmoBTS - before we receive
SI3, see 4a85828462. To accommodate for
that we deactivate CCCH in common/rsl.c, which triggers BTS-model
specific callback sapi_deactivate_cb() which updates parameters and
activates it again.
In case of osmo-bts-trx there is no auto-activation and (seems to be) no
need in special interaction with hw to activate channel (no
lchan_activate()) hence we can just skip entire
deactivate/setup/activate again routine.
[1] "channel-descrption bs-ag-blks-res N" in OpenBSC config file.
Related: OS#1575
Change-Id: I20b89ba1e43d1414180b083cd1e085eeffe5d513
Original OpenBTS transcievers add 2 bytes of padding to the end of data
bursts, having in total 158 bytes. As those two extra bytes are being
ignored after the initial validation, let's relax this validation a bit
in order to accept transcievers that decide no to send these two extra
bytes.
Change-Id: I94c3cb160bfed0ba9c41ed7ef5f8d8a65b81ad07
* move TA related globals into phy_link
* move power loop related globals into phy_link
* prefix corresponding vty vars with osmotrx
Change-Id: I01d7c1abad67e51b886a4ecf2de072929d67da27
Related: OS#1848
It was introduced in fe6c75d24a1751341bcee91cb45c7ac7f5d07da3:
* fix typo in config write
* add missing vty help string
Change-Id: Id42359dfbb8ad02f34dd2540db66f3ed69ad5181
New libosmocore has some plugin system which requires dlopen(). So we need
to make sure we always link with libdl, even when building statically.
Note that this doesn't fix static build of tests - they are still failing
with some errors.
Change-Id: I8315d6e032e34528def268a49fd88d07bc06ab2e
We tend to start MS with high power to make sure distant phones get good QoS,
but this also means that we need to reduce their power rather quickly. OTOH
we can't make this step too high because this may lead to power output
oscillation. From my (manual, limited) testing 4dB looks like a reasonable
compromise.
Change-Id: I58785513e5739474b881ed7f2a312ecc690e7e60
The following two commits from 2014-12-06 introduced a new variable to control
MS power - ms_power_ctrl, but kept the old ms_power variable in place. They
have also changed the meaning of the ms_power variable - it now keeps original
RSL configured value. So when much later osmo-trx-bts code was merged to master
the code was compiling fine and this change in the meaning was overlooked.
In osmo-bts:
579651bf30 power/sysmobts: Add a manual ms power level control
In OpenBSC:
f6f86b0eec18da165db136b14bf2db87fde4b4ac osmo-bts: Introduce new struct for a power loop in the BTS code
Change-Id: I713e39b882db32a0d17aa04790d16fa79afa1fb1
There are currently two ways to specify power reductions to be sent to
osmo-trx from osmo-bts-trx:
* osmotrx tx-attenuation oml
* osmotrx tx-attenuation <0-50>
None of them is enabled by default, which means if none of them is
specified in the config file of osmo-bts-trx, SETPOWER cmd won't be sent
to osmo-trx, which in turn won't turn on the transciever.
Let's enable osmo tx-attenuation oml by default and leave it up to the
bsc to decide which power reduction to use. If the user wants to
configure a specific tx-attentuation, it can still do so in exactly the
same way he used to do it.
Change-Id: Ia8640751630ee37e5f5d1f470bad892a08e80654
Whether or not we are talking to an OpenBTS (SETBSIC) or OsmoTRX
(SETTSC) transceiver is a property of the phy_link, and not a property
of the BTS. Also, we *really, really* should never use global
variables. I'm very happy this is being cleaned up, finally.
Change-Id: I51aeb17661dfd63ff347f7b2c0d7ffa383ec814c
Those global variable declarations for non-existing variables were
introduced in 8a8d73a691, let's remove
them again. The source / destination IP address is a parameter of the
phy_link, and not a global variable.
Related: OS#1848
Change-Id: I94b5f934fc3bd00b0467d90029d3053b16594186
In bts_model_l1sap_down() we want to identify BCCH/CCCH channel numbers,
but our check is a bit non-specific. Let's make the check more specific
to only cover the BCCH, Uplink CCCH and Downlink CCCH C-bits as defined
n 3GPP TS 08.58 Section 9.3.1
Change-Id: Ia20ab09b96c87c0dfbfaf98e5b2a8d36423fac67
For some reason, osmo-bts-trx attempted to interpret/validate the
contents of the downlink TCH block that it was about to transmit. If
such checks are made, they should clearly be in the common part above
L1SAP, and not in the bts-model specific part.
Also, having the checks in place didn't allow us to send an all-zero
downlink block, as is required for detection of uplink FER in a loopback
testing setup, e.g. with CMU-300.
Change-Id: I6388de98e4a7e20843a1be88a58bba8d2c9aa0d5
l1h is allocated in bts_model_phy_instance_set_defaults() and not in
trx_phy_inst_open(). Hence, trx_phy_inst_close() should not free() it!
Change-Id: I0ac4e57a882e5a31143499c1662d8d8e52320938
Related code / function structure still dates back to the pre-phy_link
days. Let's clean this up to make things less convoluted and reduce the
number of non-static symbols needed between code split over two files.
Change-Id: I1f30ae1f547a5c01c516d4a05032193294c25f2d
The new name makes it clear what the function actually does: Send burst
data via the trx interface.
Change-Id: I5031541d4ae4244a62a18acf71139db2874927fa
There ware some error conditions that the previous code didn't catch
and/or report, such as unparseable TRX control strings, non-terminated
buffers, ...
Change-Id: I354d0c121880553ce1bd59b7394d52b104b7d6da
The layer 1 interface (l1_if.c) for osmo-bts-trx does not include
the frame number into the measurement indications it forwards
to higher layers. The frame number is required to properly
detect the end of a measurement period.
Change-Id: Ife3c791ff50e8a866a97b9783ac7ef3ef2402a70
using gettimeofday() is not suitable for the GSM frame timer, as it
relies on the normal 'wall clock' system time, which may be adjusted by
ntp, gps or other means at runtime.
Switching to a different clock source means we cannot use
osmo_timer_list anymore, but timerfd integrates just fine with our
libosmocore select() loop handling.
Change-Id: I51b19adde14ebb7ef3bb863d45e06243c323e22e
Closes: #2325
Set (possibly incomplete) list of BTS model-specific features and report
them in response to attribute request via OML.
Change-Id: I5f8a6681c3562ec261441e84dde6e085b516d92f
Related: OS#1614
For some reason, osmo-bts-trx did another take at parsing
NM_ATT_CONN_FAIL_CRIT and storing the second octet in
btsb->radio_link_timeout, just like the generic code already does in
oml_rx_set_bts_attr(), but without proper checking and any error
message. Let's remove it.
Change-Id: Idb0179e1443c0b5a97e59919dba684a001e90192
Make more use of TLVP_PRES_LEN() instead of plain TLVP_PRESENT() and
implicitly assuming a certain length of the information element.
What this obviously doesn't introduce is some kind of error
generation/reporting in case the minimum length is not fulfilled. An IE
that's too small is silently ignored by TLVP_PRES_LEN() and treated as
if the IE wouldn't exist in the first place.
Change-Id: If5c4eee65711c49bc8ba4675221b1d5fd16198e9
instead, let's introduce a specific function for that. Also, as this
can be easily determined from the frame number, skip one argument to
tx_tch_common().
Change-Id: Ibbb9b685cf0b6a45339b0874438a500dd6254bc2
gsm0503_conv.c should have been removed as part of
efbef50efc but somehow was left here. It's
not referenced/compiled by the Makefile anymore, and the gsm053_conv.c
in libosmogsm has superseded it anyway.
Change-Id: Icdcca1bc55a83c76ec47918dc4dd301155210091
Currently the channel combination II is used for TCH/H, which
allows only one lchan to be allocated. The reason is that it
saves a bit of CPU by disabling UL burst detection on lchan 1.
There is also the channel combination III, which allows to
increase channel capacity, providing two lchans on a single
TCH/H timeslot.
Ideally we should implement some dynamic II <-> III switching
depending on the network load level. But for now this change
replaces the channel combination of TCH/H by III, until dynamic
switching is implemented.
Fixes issue: https://osmocom.org/issues/1795
Change-Id: I8fd4abb42c153fcd26bcfe22a2554b5c2d02d810
* DTXu: don't set marker for broken frames
* do not attempt to send 0-length bursts to avoid flood of errors after
bts startup
Change-Id: Icb536f951386b9abe34c0dacbb203f3db1e41bb3
This issue occurs in case of osmo-trx restart which leads to losing clock from osmo-trx.
Function bts_shutdown from common/bts.c should be used in this case for proper bts shutdown.
Change-Id: Ie65cf2e8f98cb8bf3314a00048aa53c1f8cd4c25
This issue occurs in case of osmo-nitb restart which leads to abis connection closure.
Function bts_shutdown from common/bts.c should be used in this case for proper bts shutdown.
Change-Id: Id025e703dd5c91896d450d200e88e46552f178f0
According to Table 4 in 3GPP TS 45.003 j=11, b=3 case corresponds to
k=91 and not j=12 as was previously used.
Change-Id: Iad3cf545b2f7e16276466cc37dd7a1e7858467e5
pinst->u.osmotrx.hdl should be allocated before reading phy_instance parameters from config file and applying them.
So allocation of pinst->u.osmotrx.hdl should be moved from l1if_open function to bts_model_phy_instance_set_defaults function,
which is proper place for this allocation according to start-up procedure of osmo-bts.
Change-Id: I6e23f92644400acb268818c9373a8fb10c003da1
Move rxgain and tx-attenuation (power) parameters from phy_link layer to phy_inst layer.
Rxgain and tx-attenuation parameters should be set for each phy_inst and send for each osmo-trx channel accordingly via control commands.
Change-Id: I4861a59d10d1ef91954e0c6ea265e66dec08844f
Use chan_nr for deactivating lchan instead of lchan->nr: chan_nr is the
RSL Channel Number IE value, a bitfield aggregation of lchan type
bits (cbits) and lchan number (lowest three bits). The error was
introduced in 36153239bf.
Change-Id: I6dd7060422ab9d18743c1ff2ab419e3e7299d74d
Previously if multiply phy instances were configured but not used
osmo-bts-trx would segfault. Terminate with clear error message instead
so user can correct configuration. Example configuration which caused
problem:
...
phy 0
instance 0
instance 1
...
trx 0
phy 0 instance 0
Note the 2nd instance of phy 0 which is not used in trx later on.
Change-Id: Id979506731ea92401458f1060e87aeb690901539
Remove lchan deactivation related code duplication to facilitate future
use for dynamic CCCH re-activation.
Change-Id: Id0d3b19dbfaa16d1734321a07a6eb0355bfd77c9
Originally `maxdly` command in osmo-trx was contrlling max TA for Normal Bursts.
This was not a proper behaviour, because it was used to "control maximum
distance a handset can attach from" which is controlled by Access Bursts max TA.
Osmo-trx was corrected to apply `maxdly` to Access Bursts and a new command was
introduced to contrl max TA for Normal Bursts - `maxdlynb`. This patch adds
support for this configuration command into osmo-bts-trx.
If you wonder why would you need that - some test equipment (namely R&S CMD57)
has really bad timing sync and can generate signal a few symbols off. That
prevents osmo-trx from properly receiving otherwise perfectly good bursts
generated by CMD57. This configuration is a solution for this.
Change-Id: Ib5d255299668ac1ef9f0ce95e016f55ba3c82277
The parameters related to support 11bit RACH are initialized in
osmo-trx. These parameter determaine the type of the RACH received
in osmo-pcu.
Change-Id: I164d449303373d0757719d5204f4716975fb517a
SDCCH occupy lchan 0..3 in combined configuration so for CCCH we've
always used lchan[4] - replace it with CCCH_LCHAN define and add
comment.
Change-Id: Ic5d742c292d638f119c6b4672120c1950adeb7f0
Apply similar fixes as for TCH/F_PDCH also for TCH/F_TCH/H_PDCH:
Detect dyn TS in PDCH mode in ts_is_pdch().
In trx_set_ts(), enhance the "if (TCH_F_PDCH)" to a switch statement including
both dynamic channel types. Adjust the comment to include both kinds.
Change-Id: I6669739cd08780cd9ffb9451cdae9f6b9704c4fe
It is not an exceptional situation if the air-interface is experiencing
non-recoverable decoding errors. At bad signal conditions and/or
interference, this is perfectly normal. Let's use DEBUG instead of
NOTICE log level.
Change-Id: Ifd39c53ec22f57cdb5299e5d76ff6ff1482d3beb
As the ARFCN numbers in DCS (1800) and PCS (1900) are not unique,
we need to specify the band in the upper bits of the ARFCN value before
calling gsm_arfcn2freq10().
Change-Id: I637b76bc1fc749eed8e364412d76606589991c02
Fill in values for BER, BTO, Link quality in L1SAP and send them to
PCU. Note: this increases the version of BTS <-> PCU protocol. It also
requires corresponding changes in libosmocore.
All BTS models provide measurements data unless direct DSP access for
PCU is enabled. For BTS-specific notes see below.
Octphy: conversion from sSNRDb to Link Quality uses formulae which works
in practice instead of what's documented for sSNRDb value. Subject to
change in future revisions.
TRX: C / I link quality estimator is not computed.
Change-Id: Ic9693a044756fb1c7bd2ff3cfa0db042c3c4e01c
Related: OS#1616
Allow output of encoded bit count or error count on BER calculation
without requiring both pointers to exist.
Change-Id: I2c78fa6a92a3b3da4aad8f70353e5a43451b0aa5
Fixes: Coverity CID 137963
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
bts_model_ts_disconnect() has nothing to do.
bts_model_ts_connect() merely sets the new pchan on the ts.
Change-Id: Ieb66935d6efc26854e95d238e810c4f8b16cfa88
To be able to set a specific pchan type for dynamic channels, have the
trx_set_ts_as_pchan() function with an explicit pchan argument instead of
using ts->pchan.
Keep trx_set_ts() as a thin wrapper to use ts->pchan directly.
Change-Id: I9eeef05d2a6763f86a5b89ee7c3b4211f6736e4d
Existing interfaces are coded with the implicit expectation of using
a burst sequence length of 148, which is constant with GSM and GPRS.
That changes with EGPRS, where the burst length may be 444 due to
the use of 8-PSK instead of GMSK modulation.
Setup the interface to accept and return a length value with the
burst sequence. This allows 444 length bit vectors to/from the
EGPRS decoder/encoder. Length is explicitly used as a identifier for
8-PSK vs. GMSK modulated sequences.
Change-Id: I90b46b46b11b6ce280e7f8232d5a2fccec2d4f18
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
Handles uplink decoding and downlink encoding procedures for MCS 1-9.
Includes Type 1, 2, and 3 headers and tables from 3GPP TS 44.060 in
order to independently recover coding and puncturing scheme (CPS)
parameters for each coded message.
Change-Id: I0f059ae34c6f36179553cbc972f8becf8179eb55
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
Includes EGPRS specific convolutional codes, interleaving tables
and functions, burst mappings, training sequences, and parity
checks from 3GPP TS 44.060 needed to handle MCS codings 1-9.
Change-Id: Ie270398dd7a72f282ba53e646853d8de1eabee93
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>
When receiving an OPSTART for the BTS object, also set the availability state
to OK.
Before, the availability would remain at NM_AVSTATE_DEPENDENCY, which caused an
unfortunate chain reaction resulting in osmo-bts-trx going through the
initialization sequence twice:
BTS BSC
|<-----| SITE_MANAGER OPSTART
n |----->| BTS state change: OPSTATE_DISABLED, AVSTATE_DEPENDENCY
o | | This signals to nm_statechg_event() in bts_ipaccess_nanobts.c
r | | to (a) Set BTS Attributes and (b) send BTS OPSTART
m |<-----| Set BTS Attributes (a)
a | | When osmo-bts-trx receives a Set BTS Attributes, it sends
l |----->| CHANNEL state change: OPSTATE_DISABLED x8
| | This signals the BSC to Set CHANNEL Attributes and OPSTART
i |<-----| Set CHANNEL Attributes x8
n |<-----| CHANNEL OPSTART x8
i |----->| CHANNEL state change: OPSTATE_ENABLED, AVSTATE_OK x8
t | |
|<-----| BTS OPSTART (b)
| | osmo-bts-trx immediately replies with:
|----->| BTS state change: OPSTATE_ENABLED, AVSTATE_DEPENDENCY
| | Unfortunately, availability is left at DEPENDENCY,
| | and the NM_OC_BTS case in nm_statechg_event() only
| | checks for availability, not for the opstate.
| | Hence nm_statechg_event() again feels inclined to
| | to (a) Set BTS Attributes and (b) send BTS OPSTART,
| |
--+------+----- This is where the second round starts
| |
s |<-----| Set BTS Attributes (a)
e | | When osmo-bts-trx receives a Set BTS Attributes, it sends
c |----->| CHANNEL state change: OPSTATE_DISABLED x8
o | | All channels are disabled again, and then re-launched:
n |<-----| Set CHANNEL Attributes x8
d |<-----| CHANNEL OPSTART x8
|----->| CHANNEL state change: OPSTATE_ENABLED, AVSTATE_OK x8
| |
i |<-----| BTS OPSTART (b)
n | | osmo-bts-trx again sets the OPSTATE_ENABLED, but since
i | | this time it was already enabled, no further state change
t | | is sent back to the BSC.
This nightmare pivots on two hinges:
1. osmo-bts-trx fails to set BTS availability to AVSTATE_OK.
2. nm_statechg_event() fails to heed the OPSTATE_ENABLED of the BTS state
change.
Note, the configured channels from the first round were not actually taken
down, only the OML OPSTATE_DISABLED were sent.
In this commit, fix the osmo-bts-trx side: send AVSTATE_OK for the BTS object
upon sending OPSTATE_ENABLED, so that only the part marked "normal init" above
is run.
This change applies the same fix to other OML objects, which should make sense
in the same manner, within the current hackish OML implementation:
* NM_OC_BTS
* NM_OC_SITE_MANAGER
* NM_OC_BASEB_TRANSC
* NM_OC_GPRS_NSE
* NM_OC_GPRS_CELL
* NM_OC_GPRS_NSVC
This means that the NM_OC_CHANNEL case just above is identical, and thus
collapse NM_OC_CHANNEL onto the other cases. Drop the comments from
NM_OC_CHANNEL since they merely rephrase the commands themselves.
See OS#1770 for BTS and NITB logs.
Fixes: OS#1770
Change-Id: I08aa861f6100568c79750f4fbc9a32e1557b9304
Many erratic PDTCH blocks are expected. To not bloat the log,
notifications for this should be on debug level.
See http://lists.osmocom.org/pipermail/openbsc/2016-June/009457.html
(Thu, 30 Jun 2016 01:49:33 +0300 / Alexander Chemeris
<alexander.chemeris@gmail.com> / Re: GPRS on osmo-trx not working)
Change-Id: Ie318248aa2b8de455174e72a63c602c7aeae312c
Many erratic bursts are expected. To not bloat the log, notifications for this
should be on debug level.
See http://lists.osmocom.org/pipermail/openbsc/2016-July/009482.html
(Tue, 5 Jul 2016 15:38:27 -0700 / Tom Tsou <tom@tsou.cc>
/ Re: osmo-bts-trx error logs -- was: GPRS on osmo-trx not working)
Change-Id: If591c087ba8fd48564139e32930050ee8ab07001
* detect SID and set RTP Marker accordingly (emulate ONSET events)
* set proper FN in TCH_IND
* detect speech pause and do not send dummy 'bad' frames during that
time
Change-Id: Id518e5c667df7773c281effb9e75b66bf898f6fc
Related: OS#1750
Switch to using libosmocodec functions as a preparation step for DTX
support as they expose necessary bits.
Change-Id: Ie7423032fd06779d78876182ee63538d98906328
Related: OS#1750
Enhance bts_model_ API in preparation of dyn PDCH switching. These will be used
to re-connect a TCH/F_PDCH TS in a different mode: either as TCH/F or as PDCH.
All implementations so far return -ENOTSUP, and thus will cause a IPAC PDCH ACT
or DEACT *NACK* to be sent to the BSC as soon as these messages are handled.
Also add stubs in tests.
Change-Id: I21e60c028a1333431c3ed000f788b654d1170b0d
Add vty command (under "phy X instance Y" hierarchy) to manually send
POWERON or POWEROFF command. It's useful for debugging issues related to
BTS/TRX initialization.
Change-Id: I6dfebaf118cdf5ad144516b2b839b17350a73ce4
Related: OS#1648
Previously software activation could have been reported multiple times
which broke proper BTS init. Introduce guard variable to ensure
reporting happens only once.
Note: this is just minimal workaround - ideally proper OML state machine
should be implemented.
Change-Id: Ifffbdb756bc5d2864f985c01a3299b839c4de7af
Related: OS#1648
Previously osmo-bts-octphy have not provided in-band presence
information which cause off-by-one errors and misinterpretation of
ph_data_ind by PCU. This fixed now by adding support for explicitly
passing PH-DATA presence info. Corresponding check and in-band passing
of presence information are removed.
Note: this requires libosmocore version with osmo_ph_pres_info_type
support integrated.
[hfreyther/max: Remove + 1 from the decoded length]
the backend is performing the actual encoding and decoding functions,
while the generic part constsits of the TDMA structures and generating
the RTS.ind
The L1 scheduler is a generally useful component that is unfortunately
tied quite a bit into the OsmoTRX support. Let's try to separate it out
by having separate per-trx/per-ts/per-chan data structures pre-fixed
with l1sched_
Using this patch it should be one step easier to use the scheduler for
other BTS models, such as the intended upcoming virtual BTS.
OpenBSC introduced a naming change in
615ed46a6ab25f71a7ab0d8201d33b4dbf8fc5b0 but osmo-bts fixes were only
about osmo-bts-sysmo, not osmo-bts-trx. This updates osmo-bts-trx
accordingly.
A known issue with this code is that BER is not updated for lost TCH frames,
because osmo-trx doesn't send any indication for them and we don't have
a callback to handle this.
Otherwise the code seem to work fine.
3GPP TS 05.03 "Channel coding" specifies the puncturing matrix (1,0,1)
for class 1 information bits and tail bits valued u(0) to u(103) for a
maximum puncturing index of 311. The puncturing index 313 exceeds the
maximum index and causes osmo_conv_get_output_length() to output the
improper length of 210 instead of 211.
Signed-off-by: Thomas Tsou <tom@tsou.cc>
If frame number is out of range (>= 2715648), the scheduler's process
would end up in an infinite loop. This is because the loop would schedule
bursts until the indicated frame number is reached, which would not be
possible.
The openbts, calypso-bts and osmo-trx might send out out of range clock
indications every 3.5 hour.
RTS (ready-to-send) must be issued in advance, so BTS core and especially
osmo-pcu can provide downlink data frames early enough. In some cases PCU
might provide frames too late, so they must be dropped. If PCU provides
frames too late, due to high system load, this "RTS advance" setting must
be increased.
Instead of limiting the number of TRX at VTY to the actual number of
supported TRX, VTY allows to configure any possible number of TRX. If a
TRX is configured, which is not supported by BTS model, an error message is
returned, which states that the given TRX is not supported.
Handover and assignment may activate channels with ciphering already set,
so we need to tell scheduler to enable/disable ciphering and set the
correct cipher state.
Only if transceiver becomes available, control commands are sent. If
tranceiver is gone, reset scheduler.
The current availability state is sent to BSC via OML state change
commands.
Pau Espin
Harald Welte
Neels Hofmeyr
Philipp Maier
Neels Hofmeyr
Martin Hauke