So far the we indicated pre-emption in the release cause of denying an
emergency setup, instead indicate protocol error.
When emergency calls are disallowed, it is not pre-emption (making room
for an emergency call) but a protocol error (MS asks for emergency call
when the network does not allow it).
Related: OS#5534
Change-Id: Ia195621165cb7bbe33e6c2e915abc42ab16a2a4f
The range used for this variable is 0-100, so no need to use a signed
integer. Morever, uint8_it is enough for the range.
Change-Id: I863d9531baf5308b45a2ebe60266ba02d1041cc3
Its name is totally misleading, since they seem to be related to
GetAttributes messages rather than SetAttributes.
Change-Id: I306cb407dbd9b98e301b5d93046bdadcb466b82b
Currently, the Tx paging_req queue at the BSC always has new paging
requests adding at the end (as long as the subscriber is not already in
the queue).
That means, if the queue is full of retransmitions, it will take a long
time until the first paging_req is sent towards that subscriber.
The rationale here is that it makes sense to attempt the first paging
ASAP, and give lower prio to paging_req retransmitions, since it may
well be that those other subsribers are not available/reachable and
won't answer.
Related: SYS#5922
Change-Id: I1ae6d97152c458247bc538233b97c2d245196359
Having one paging request being sent every PAGING_TIMER (500msec) is too
slow in case BSC is serving lots of subscribers on a BTS. Hence, we want
to send many paging requests at once while still trying not to fill the
BTS buffer.
Morever, we don't want to send tons of paging requests at once, hence we
limit the amount of paging requests sent in one timer iteration
(MAX_PAGE_REQ_PER_ITER) in order to avoid the BSC doing lots of work
there at once, keeping it busy from processing other tasks.
Related: SYS#5922
Change-Id: I609fa67834b426456f48f6fb2acb601c5905f178
The variables are unsigned, so -1 gets actually translated to UNIT16_MAX
when the value is casted to uint16_t. Let's do that explicitly so that
readers don't think those are signed variables.
Change-Id: I02ad80e5d10f1a47cdf712f7f7c576a2e20fe607
If an lchan needs to be released to make room for an emergency call,
send the proper release cause ("pre-emption").
Related: OS#5534
Change-Id: I0423621d15ace11a53ae1653e5e7f5cb93605edb
Order the features and add a comment that reminds of updating OsmoBTS
to actually report the new features that are assumed to be supported
here.
Related: SYS#5922, OS#5538
Change-Id: I6f041648990db4ae479538cf3970c826bc6703ed
pcu_sock.c: In function ‘pcu_tx_info_ind’:
pcu_sock.c:197:2: error: #warning "isn't dl_tbf_ext wrong?: * 10 and no ntohs" [-Werror=cpp]
197 | #warning "isn't dl_tbf_ext wrong?: * 10 and no ntohs"
| ^~~~~~~
pcu_sock.c:199:2: error: #warning "isn't ul_tbf_ext wrong?: * 10 and no ntohs" [-Werror=cpp]
199 | #warning "isn't ul_tbf_ext wrong?: * 10 and no ntohs"
| ^~~~~~~
they made it here from osmo-bts.git
(b4999b60d4 states that the PCUIF support
was copied from there). The gitlog shows that these warnings were added
in 744f745d7a508605254afa8f78412ad410d153b0 by jolly (in 2012!)
together with the PCUIF support, and before
c1368d4ebe49f8e01f1f5fff3bc3583cb5960c1d these warnings were in German:
"ist dl_tbf_ext nicht falsch?"
As nobody has bothered for the past ten years, degrade them to comments.
Change-Id: I9ef7e18f56aa86b48f0ffeec58406260736170f3
From Vadim in https://gerrit.osmocom.org/c/osmo-bsc/+/27818
By checking !(link_id & 0xc0) we actually make sure that this is not
SACCH. So the comment "but not if the link_id contains a TCH flag" is
wrong, there is simply no such thing like "a TCH flag".
Change-Id: I8f0f6d7bf952426fd2f27802f1499d6ee8981982
If the BTS tells us SAPI=0 is gone, there is no point in trying to keep
the lchan around for SAPI=3, as it is not possible to operate GSM with
SAPI=0 gone.
This occurred with RBS6000, which don't seem to send RLL REL IND for
SAPI3 after doing so for SAPI0. However, rather than an
ericsson-specific hack, let's make this the general rule: If SAPI=0
is gone, don't stop the lchan from being released.
Change-Id: Ia9caa5b0a5efdc459d94621367376927959a6e65
Related: OS#5530
If we receive something unexpected, log it (and free the msgb!)
Change-Id: I43fab6a3a1c5e7a6545d6ef848636f5ba1be1576
Related: OS#5530 (only tangentially related)
The penalty timer low_rxqual_as() is only supposed to apply on an
intra-cell re-assignment. However, a segfault has been reported that
apparently applies it to inter-BSC handover.
Make sure that this timer applies only to re-assignment. In effect this
makes sure that the target bts is non-NULL and avoids the segfault.
Related: OS#5525
Change-Id: Ifdb9891fbe7e3f3423a96371def4fcbf2fc0bc0d
When using 'check_PROGRAMS', autoconf/automake generates smarter
Makefiles, so that the test programs are not being compiled during
the normal 'make all', but only during 'make check'.
Change-Id: I030c88545cdc71b3ad9e83f9c2ba7b27177c2ac8
When responding to a CBSP KILL with a CBSP KILL COMPLETE, make sure
we include the optional "Number of Broadcasts Completed List" IE
in order to inform the CBC about how many times the just-killed
message had been broadcast before it was killed.
It seems some CBCs expect this IE to be present, while 3GPP TS 48.049
lists it as optional. Since we alrady have code to encode it, let's
just always add it - it certainly won't hurt.
Change-Id: I47aebd613dfc6dd9261ea9019a51aff0cd6470d8
Closes: SYS#5906
This is cosmetic change making the default multi-rate configuration
easier to read/understand and modify.
Change-Id: I3d03c2188d007a60a86961a346744400bc81d4e6
Related: SYS#5917, OS#4984
* Always say 'codec mode', not just 'codec'.
* Suggest proper modes in AMR_{TH,HY}_HELP_STR.
* Use 3GPP's definition of threshold and hysteresis.
* Clarify that threshold and hysteresis values are in 0.5 dB steps.
Change-Id: I996eae8aafeb2850e5e1a6f5a7764d745e1289b5
Related: SYS#5917, OS#4984
Now that we have separate header/code files for the power control,
let's move the related definitions there. This change makes the
code consistent with osmo-bts, where it's already done this way.
Change-Id: I1cb3f6bfba0306e8f371dcd5162d1813beb3a088
For the sake of consistency and code readability, initialize the
power loop control interval (P_Con_INTERVAL) for both Uplink and
Downlink directions in the same function.
Change-Id: Ie3d4b481cbfacf27004787616e22b6f8a863b47b
When the assignment succeeds, the assignment_request has taken effect
and whatever it requested should now be in effect.
Hence copy the new RTP information from the assignment_request to the
conn's storage indicating what is currently used, always, not only when
lchan_changed == true. The RTP information may have changed also from a
Mode Modify where the lchan stays the same but changes its mode of use,
e.g. from signalling to voice.
When there is no RTP involved, this data is zero or empty, so there is
no harm in copying it, always.
Related: SYS#5916
Change-Id: I0788d1f013b8f820f559b6ed58a5f9bb8a02e0b4
When the assignment fails, we roll back the MSC side RTP endpoint at the
MGW that may have been created before the failure occured. On success,
we clear the mgcp_ci pointer so it is not rolled back.
Always clear this, not only when lchan_changed == true. That is because
a channel Mode Modify may also have added a voice stream that should
retain the newly created RTP endpoint at the MGW.
If no voice stream is involved, the pointer should already be NULL.
There is no reason to have a condition for clearing this pointer.
Just always clear it.
This fixes all voice calls that modify a TCH lchan from signalling-only
to voice mode. Before this patch, their MSC side RTP endpoint was DLCX'd
right on assignment success.
In particular, this fixes Emergency Calls (which usually get a TCH lchan
assigned right from the start, and hence do a Mode Modify to add voice).
Related: SYS#5916
Change-Id: I5ab10ee7fd9c5d7608e8a06893881d990943feed
The paths were wrong in my previous attempt, add the proper paths now.
I've verified that this file builds, and adjusted the current nightly
rpm spec uploaded to OBS with this change manually this time so it
doesn't block.
Fix for:
File not found: /home/abuild/rpmbuild/BUILDROOT/osmo-bsc-1.8.0.90.e0187.202204061142-1.1.x86_64/etc/osmocom/osmo-bsc-4trx-fh.confmerge
File not found: /home/abuild/rpmbuild/BUILDROOT/osmo-bsc-1.8.0.90.e0187.202204061142-1.1.x86_64/etc/osmocom/osmo-bsc-4trx.cfg
Fixes: e0187bc3 ("contrib/osmo-bsc.spec.in: add new config files")
Change-Id: I92a7d85b64a9659db7ef71af5b00110b582dc4d9
This file was taken from docker-playground.git, and this is basically
what we use when running the ttcn3-bts-test with hopping enabled.
Change-Id: I205eb53901e06ee52dc64e050cfe2374cb9c771e
So far we had no multi-trx config examples at all. Let's add one.
Use unique 'RSL TEI' for each TRX, as this simplifies analyzing the
Abis protocol traces. Also use the new 'TCH/F_TCH/H_SDCCH8_PDCH'.
Change-Id: I20f86fa74dc4bd71538627ec59c5d2cd3678a089
Fixes: OS#4748
According to 3GPP TS 45.002, table 3, unlike the CCCH+SDCCH/4+CBCH
combination, which can only be allocated on C0/TS0, the SDCCH/8+CBCH
can be allocated on C0..n/TS0..3. In other words, having CBCH on
e.g. TRX1/C1 is perfectly legal. This is why in gsm_bts_get_cbch()
we should check all transceivers, not just the C0.
Change-Id: Ie79ccff4f8f0f1134757ec0c35e18b58081cc158
Related: SYS#5905
When bad RxQual causes handover to a cell with weaker RxLev, then
handover oscillation *will* happen, as shown in test_rxqual.ho_vty.
Introduce a penalty timer for a cell where we had bad RxQual.
This delays handover back to the cell with stronger RxLev by the penalty
timeout; hopefully the interference is gone after the timeout.
Usually, we set new configuration elements so that osmo-bsc behaves the
same as before the config item was added. In this instance, this makes
no sense, because no-one ever wants handover oscillation from bad
RxQual, which is guaranteed to happen without the new penalty timer. Set
it to 60 seconds by default, same as other penalty timers.
Related: SYS#5911
Change-Id: I057b156604a104a26a7ce45d1c7adadbf452c932
This add support for handling inbound MESSAGE STATUS QUERY from the CBC,
and responding with MESSAGE STATUS QUERY COMPLETE or MESSAGE STATUS
QUERY FAILURE, as applicable.
Change-Id: I3b738dc29d0ead4f735abeeb6960d3675cb05ae2
Related: SYS#5909
Neels Hofmeyr
Pau Espin
Vadim Yanitskiy
Oliver Smith
Harald Welte