| Age | Commit message (Collapse) | Author | Files | Lines |
|---|
|
After recent libosmocore commit "implement support for 3-digit MNC with leading
zeros" c4fce1425e19d604c199c895e227dc2519110456
Id2240f7f518494c9df6c8bda52c0d5092f90f221, struct gprs_ra_id has a new member,
namely mnc_3_digits. In gprs_ra_id_by_bts(), this new member is now not
initialized and may end up having an arbitrary value, which then may amount to
mnc_3_digits == true. Hence the resulting BCD representation of the MCC-MNC may
inadvertently and randomly indicate a leading zero on the MNC.
Use a struct assignment so that all members are guaranteed to be set, and so
that mnc_3_digits will be zero in all cases.
Since above libosmocore commit, nanobts_omlattr_test fails "randomly", fixed by
this patch.
Change-Id: I872ae3b2b0a0cd8f932f3a5fbc77c0dbfcb28bbf
|
|
The S_L_INP_TEI_UP signal was generated when the first message from a BTS
arrives on the OML/RSL link, rather than when the OML/RSL link comes up.
Instead, generate this signal when the link is brought up, so we
intitialize state regardless of how a particular BTS behaves.
Tested with osmo-bts-virtual and virtphy/mobile programs,
and with a sysmobts.
Change-Id: I3b76ae6b00043e706dddc78209311e00ace85bb7
Related: OS#2719
|
|
We already have other commands that operate on a given bts/trx/ts/ss,
let's make sure they have a shared/common syntax for consistency.
This also fixes the issue that the handover/assignment commands were
active already in VIEW_NODE, while they should only have been in
ENABLE_NODE.
Change-Id: I1f31e9adf9c75348809ebf9f40f6c69fab248e43
|
|
Access Control Class (ACC) ramping is used to slowly make the cell
available to an increasing number of MS. This avoids overload at
startup time in cases where a lot of MS would discover the new
cell and try to connect to it all at once.
Ramping behaviour can be configured with new VTY commands:
[no] access-control-class-ramping
access-control-class-ramping-step-interval (<30-600>|dynamic)
access-control-class-ramping-step-size (<1-10>)
(The minimum and maximum values for these parameters are hard-coded,
but could be changed if they are found to be inadequate.)
The VTY command 'show bts' has been extended to display the
current ACC ramping configuration.
By default, ACC ramping is disabled.
When enabled, the default behaviour is to enable one ACC per
ramping step with a 'dynamic' step interval. This means the
ramping interval (time between steps) is scaled to the channel
load average of the BTS, i.e. the number of used vs. available
channels measured over a certain amount of time.
Below is an example of debug log output with ACC ramping enabled,
while many 'mobile' programs are concurrently trying to connect
to the network via an osmo-bts-virtual BTS. Initially, all ACCs
are barred, and then only one class is allowed. Then the current
BTS channel load average is consulted for scheduling the next
ramping step. While the channel load average is low, ramping
proceeds faster, and while it is is high, ramping proceeds slower:
(bts=0) ACC RAMP: barring Access Control Class 0
(bts=0) ACC RAMP: barring Access Control Class 1
(bts=0) ACC RAMP: barring Access Control Class 2
(bts=0) ACC RAMP: barring Access Control Class 3
(bts=0) ACC RAMP: barring Access Control Class 4
(bts=0) ACC RAMP: barring Access Control Class 5
(bts=0) ACC RAMP: barring Access Control Class 6
(bts=0) ACC RAMP: barring Access Control Class 7
(bts=0) ACC RAMP: barring Access Control Class 8
(bts=0) ACC RAMP: barring Access Control Class 9
(bts=0) ACC RAMP: allowing Access Control Class 0
(bts=0) ACC RAMP: step interval set to 30 seconds based on 0% channel load average
(bts=0) ACC RAMP: allowing Access Control Class 1
(bts=0) ACC RAMP: step interval set to 354 seconds based on 59% channel load average
(bts=0) ACC RAMP: allowing Access Control Class 2
(bts=0) ACC RAMP: step interval set to 30 seconds based on 0% channel load average
(bts=0) ACC RAMP: allowing Access Control Class 3
(bts=0) ACC RAMP: step interval set to 30 seconds based on 0% channel load average
Change-Id: I0a5ac3a08f992f326435944f17e0a9171911afb0
Related: OS#2591
|
|
In the past we used to set this to "-10 dBm" which means that basically
no RACH ever passed that treshold and in the associated CCCH LOAD IND
the number of busy slots was always zero.
Let's set the default to -90dBm. The user can of course always
configure a different value in the VTY.
This means that now any RACH slot signal level >= 90 dBm counts as
"busy" in those CCCH LOAD IND (RACH).
Change-Id: Ib9cbb786d19acc74f0951930b0dc9284854c6000
Closes: OS#3004
Related: OS#3003
|
|
The rate counter BSC_CTR_PAGING_ATTEMPTED does not increment when
a paging request is sent to the BSC. The reson for this is that the
function call to rate_ctr_inc() is located in a dead code section.
- Move the function call to rate_ctr_inc() to osmo_bsc_bssmap.c.
incremanet on any paging attempt (valid or not) that is recived
on the A-Interface.
- Remove dead code from paging.c
Change-Id: Iec3eb6724bc655806c3ce3c28448069590d99f91
|
|
When the cell identifier list of the BSSMAP paging contains an
"No cell is associated with the transaction." entry then the
paging is dropped and no paging is started at all. This is not
correct. When no cell is associated, the BSS should page the
whole BSS instead.
- Replace respective error case with a paging request to all
bts.
Change-Id: Id85e3a7540bdc13cd0e780e7870f16c35c6a6a50
|
|
Fix string format error introduced by recent commit:
"bsc_api: drop unknown RR messages."
I0a4d311f6939a4fcee59129daa18da4a2ab510ae
e4b0ebb25b68d667b9281573638c49358f71007f
Change-Id: Iab11ec6c44eb235d327b3776d5f1d82267ddadaa
|
|
Radio Resource (RR) handling is entirely done inside the BSC. However,
the current implementation forwards unknown RR messages to the MSC.
This is not compliant to the specification.
- Remove the forwarding and drop any unknown RR message.
Change-Id: I0a4d311f6939a4fcee59129daa18da4a2ab510ae
|
|
handover_decision_2:
- lchan->conn should never be NULL, but if it is, don't crash in LOGPHO*
macros.
- make certain to avoid modulo-zero. It's cosmetic since that config item is
not allowed to be zero.
handover_test:
- check return value of gsm_generate_si().
- safer evaluation of main()'s argv.
Fixes: CID#182929, CID#182928, CID#182927, CID#182926
Change-Id: I68e8ed3a1e8659edb47ac3e8a10508f17a3f5670
|
|
The file meas_proc.c seems to be an earlier stage of development of the meas
rep handling now in handover_decision.c, and to have been inadvertently added
to the git tree in:
commit 9af6ddfcec25f43c5b50a6c5a6b80e341ab9a8a7
Date: Sat Jan 1 15:25:50 2011 +0100
License change: We are now AGPLv3+ instead of GPLv2+
The file has never been part of Makefile.am.
Change-Id: If30724e3c638b191d20d00b897731762fb4896d5
|
|
The ALIAS_DEPRECATED causes the legacy commands to no longer show up in the
command listing, hence making it more clear which commands are general and
which are for hodec1 only:
== BEFORE: ==
OsmoBSC(config-net)# list
...
handover (0|1|default)
handover algorithm (1|2|default)
handover1 window rxlev averaging (<1-10>|default)
...
handover2 window rxlev averaging (<1-10>|default)
...
handover2 retries (<0-9>|default)
handover window rxlev averaging (<1-10>|default) <-- legacy
handover window rxqual averaging (<1-10>|default)
handover window rxlev neighbor averaging (<1-10>|default)
handover power budget interval (<1-99>|default)
handover power budget hysteresis (<0-999>|default)
handover maximum distance (<0-9999>|default)
handover2 congestion-check (disabled|<1-999>|now)
OsmoBSC(config-net)# handover ?
0 Disable in-call handover
1 Enable in-call handover
default Enable/disable handover: Use default (0), remove explicit setting on this node
algorithm Choose algorithm for handover decision
window Measurement averaging settings <-- legacy
power Neighbor cell power triggering
maximum Maximum Timing-Advance value (i.e. MS distance) before triggering HO
OsmoBSC(config-net)# handover?
handover Handover general config <-- unchanged
== AFTER: ==
OsmoBSC(config-net)# list
...
handover (0|1|default)
handover algorithm (1|2|default)
handover1 window rxlev averaging (<1-10>|default)
...
handover2 window rxlev averaging (<1-10>|default)
...
handover2 retries (<0-9>|default)
handover2 congestion-check (disabled|<1-999>|now) <-- no more legacy
OsmoBSC(config-net)# handover ?
0 Disable in-call handover
1 Enable in-call handover
default Enable/disable handover: Use default (0), remove explicit setting on this node
algorithm Choose algorithm for handover decision
<-- no more legacy
OsmoBSC(config-net)# handover?
handover Handover general config <-- unchanged
The "Legacy" doc string actually never shows on the VTY console, but it will
show in the reference manual.
(Even with ALIAS(), a 'handover?' would only show the "Handover general config"
doc string, so no loss there from using ALIAS_DEPRECATED().)
Change-Id: I86be674d82242f9ca73a4d0040015c1c79f2422d
|
|
They are based on work by jolly, so it can't hurt to mark his copyright.
Change-Id: Id3856cf34d85d6354510a94960fe5ce810c10bc7
|
|
Handover decision 2 arguments are now configured by 'handover2 foo'. To match
that scheme, rename the previously 'handover foo' args for handover decision 1
to 'handover1 foo'.
For backwards compatibility, still provide aliases of the original VTY
commands. Writing back the config will result in 'handover1' though.
Change-Id: I7305ae7c04cc70082cd80d42b2ba32ffa399f51a
|
|
Change-Id: Ie597eae82722baf32546331e443dd9d94f1f25e6
|
|
Change-Id: I66c4f45afda614f874c9cdf0c22552f492315b71
|
|
Instead of reacting on S_LCHAN* signals in the handover decision code,
introduce callbacks for the handover decision to be invoked by handover_logic.c
at the appropriate time.
The rationale is explained in a comment to struct handover_decision_callbacks,
quoting:
"
All events that are interesting for handover decision are actually communicated
by S_LCHAN_* signals, so theoretically, each handover algorithm could evaluate
those. However, handover_logic.c cleans up handover operation state upon
receiving some of these signals. To allow a handover decision algorithm to take
advantage of e.g. the struct bsc_handover before it is discarded, the handover
decision event handler needs to be invoked before handover_logic.c discards the
state. For example, if the handover decision wants to place a penalty timer
upon a handover failure, it still needs to know which target cell the handover
failed for; handover_logic.c erases that knowledge on handover failure, since
it needs to clean up the lchan's handover state.
The most explicit and safest way to ensure the correct order of event handling
is to invoke the handover decision algorithm's actions from handover_logic.c
itself, before cleaning up. This struct provides the callback functions for
this purpose.
For consistency, also handle signals in this way that aren't actually in danger
of interference from handover_logic.c (which also saves repeated lookup of
handover state for lchans). Thus, handover decision algorithms should not
register any signal handler at all.
"
Also:
- Publish struct bsc_handover to use it as argument to above callbacks.
- Add enum hodec_id to struct bsc_handover, to be able to signal the
appropriate hodec algorithm per event.
- Add hodec_id argument to bsc_handover_start*() to be placed in the
bsc_handover struct.
- Publish the LOGPHO logging macros in handover.h along with struct
bsc_handover, convenient for logging in callback implementations.
Replace handover_decision.c's signal handler with a registered
handover_decision_callbacks instance.
(Upcoming handover_decision_2 will use all of the callbacks introduced here.)
Change-Id: Id5b64504007fe03e0406a4b395cd0359232b77d2
|
|
The function's return value is ignored. An upcoming patch will use this as
callback function and requires a void return.
Change-Id: Id455a8becbb43884e8205d87b0371b216d0119fc
|
|
The conn's penalty timers will be used only for handover decision 2, make it
clear by a sub-struct.
hodec2 will also initialize the penalty timer list on demand only, so no need
to always initialize.
Change-Id: Ie6c2bc2b10dc424dfd94a9e11a9a62f51c48aa10
|
|
Handover decision 2 will also store the last seen mr nr for neighbor cell
measurements and hence can tell whether a neighbor's measurement is outdated.
Change-Id: Ic1148364597f91b5a55666c80c758b61fa56f582
|
|
Do not share config items between the current handover decision and the
upcoming handover_decision_2.
Rename current handover config items to hodec2_* and duplicate the ones
relevant to handover decision algorithm 1 with name prefix of hodec1_*.
I considered moving hodec2 parameters to an entirely separate .c file and
struct, but that causes considerable code bloat. Rather use the nice
handover_cfg net/bts level mechanism as-is, and simply prefix the names.
In the VTY, the hodec1 parameters are configurable by 'handover foo 23'
commands, while the hodec2 parameters are by 'handover2 foo 23'. The generic
VTY commands to enable/disable handover and to choose the algorithm are still
'handover (0|1)' and 'handover algorithm (1|2)'.
(Note, a subsequent commit will rename the 'handover foo' for hodec1 to
'handover1 foo' and add backwards-compat aliases.)
For example, the 'window rxlev averaging 5' command now exists both for
handover decision 1 and handover decision 2, and its values are independent.
This is valid config:
network
# set up handover decision algorithm 1
# (pending rename of these items to 'handover1 ...')
handover window rxlev averaging 5
handover window rxlev neighbor averaging 5
# set up handover decision algorithm 2
handover2 window rxlev averaging 7
handover2 window rxlev neighbor averaging 7
handover2 penalty-time max-distance 10
# enable handover
handover 1
bts 0
handover algorithm 1
bts 1
handover algorithm 2
In this example, bts 0 uses algo 1 with rxlev averaging of 5, while bts 1 uses
algorithm 2 where rxlev averaging of 7 is in effect.
Change-Id: I6475b2543b18d21710a6d774b214cb484f36ec8e
|
|
chan_compat_with_mode() currently only considered the requirements of
voice/csd services. It failed to realize that GSM48_CMODE_SIGN
can also be performed over a SDCCH, resulting in unneeded channel
allocation/assignment to TCH type channels, e.g. for SMS.
This makes TC_assignment_sign pass.
Change-Id: I85ffcbd32ccd2617c897edb3b904f56bacd0684f
Closes: OS#2762
|
|
Change-Id: I85528689b5298a13c60ae80fabd8d66459f730a9
|
|
Change-Id: Iffbdfd7591aaeedf24ff0de5f34093be78e2833a
|
|
The BSSMAP Cause value should give a clear indication of why a given
operation failed. Previously we were unconditionally sending
GSM0808_CAUSE_NO_RADIO_RESOURCE_AVAILABLE even in cases where mandatory
IEs were missing or other errors occurred unrelated to resource
availability.
Closes: OS#2759
Change-Id: I86adcae2950cbea6dcac4551cfde1054cb0abad1
|
|
So far, the administrator had to pick one particular cipher which
would then be used throughout all subscribers/phones. This is a bit
impractical, as e.g. not all phones support A5/3. Extend the VTY
command syntax in a backwards-compatible way to permit for multiple
ciphers.
The bit-mask of permitted ciphers from the MSC (sent in ASSIGNMENT
COMMAND) is intersected with the vty-configured mask a the BSC.
Finally, the best (highest) possible cipher is chosen.
Change-Id: I1d1c8131855bcab2392b4f27f6216bdb2fae10e0
Closes: OS#2461
|
|
About half of our log categories/subsystems were inherited from
OsmoNITB, and are no longer used but may confuse the user.
Change-Id: I8b39429f71c0faefdf8158a82093cfb19f44809e
|
|
osmo_bsc_sigtran.c uses DRANAP instead of DMSC in two places,
this is not correct.
- change wrong DRANAP to DMSC
Change-Id: I1594d1906cf7d053d00fff52e9dc0ddfd097ed6e
|
|
Once upon a time, in the old osmo-bsc-sccplite, there was a restriction
of not being able to handle configurations with both TCH/F and TCH/H
type codecs. This time is long gone, so let's remove this constraint.
Change-Id: Iba0822f57c41cedeeb7f069be540f3a851752a23
Closes: OS#2763
|
|
There was always a 1:1 correspondence between gsm_subscriber_connection
and osmo_bsc_sccp_con, so there's really no point in having two separate
dynamically allocated data structures with pointers back and forth and
another linked list around.
Let's merge osmo_bsc_sccp_con into gsm_subscriber_connection for
simplicity.
The resulting code might not be elegant in places, but I've tried to
do only the most simple changes in this patch, while further
simplifications can be done in later subsequent patches.
As a side-effect, this patch also fixes lchan clearing if the MSC
(or the local SCCP provider) hard-disconnects the SCCP connection.
Change-Id: Idd2b733477ee90d24dec369755a00f1c39c93f39
|
|
Print out the current neighbor cell list, works both for manual and
automatically populated modes.
Examples of output for various configs:
Neighbor Cells: Automatic, ARFCNs: (none)
Neighbor Cells: Automatic, ARFCNs: 868 (1)
Neighbor Cells: Manual, ARFCNs: 123 125 (2)
Neighbor Cells: Manual/separate SI5, ARFCNs: 123 125 (2) SI5: 321 (1)
Change-Id: I57dae0e01b81a6f028b39f3edcaf430251ca8fe2
|
|
Change-Id: I56ee2edc7473dc5e9f3c3463194369024cd64995
|
|
Have expicitly named vty write functions for bts and net levels, so that it is
trivial to add commands that exist only on one of each (like the upcoming
congestion check timer config for hodec2).
Change-Id: Ibea4c20abc50c3d655f6bbb1a643477dfc722c8e
|
|
On BSSMAP Assignment Request received from the MSC, store the Speech Codec List
in the subscr conn, so that we may evaluate available codecs during handover
decision. (Will be used, e.g., by handover_decision_2.)
Change-Id: I8222d73085eb777696e365c94214c05d56e6d129
|
|
Separate penalty timers API from specific struct members and move to own .h/.c
file, so that future code may re-use the API arbitrarily.
Change-Id: Ife975a1c7c17a500b1693be620475a8bea72f86f
|
|
Explicitly log "Handover" or "Assignment", add more info to existing log
statements and add more log statements.
Log ho failure both on RR and HO log categories: RR receives the HO failure
message, while the HO failure is an important event to note when watching the
HO category.
Change-Id: Ia3999755cdd4e0c2861582b20e2dbb7e1538e074
|
|
For re-assignment within the same cell, keep the same MS power. But for
handover to another cell, start off with that cell's configured maximum MS
power.
Change-Id: Ia91766d8bb8f543f514726ce9508b7747bb2bcb5
|
|
We're really only interested in async handover so far.
Set ho->async to true always.
Change-Id: I48715864d4b953987c86d93fe1b3a5456f0c4e0f
|
|
To keep this cosmetic change apart from subsequent functional changes:
have a local do_assigment flag and a local network pointer.
Change-Id: I09684dcf2a00e3d930e058cc1c925ad6e59b1468
|
|
Upcoming handover_decision_2 will want to be able to handover to a differing
TCH type, hence add a parameter to bsc_handover_start(); adjust current callers
to pass the old lchan type.
Tweak the 'bts' argument to 'new_bts'.
Change-Id: I4478ebcaada00897cc38c5a299e07661139ed3c5
|
|
memcpy obviously needs the byte size, not the ARRAY_SIZE. For the uint8_t
arrays, these are incidentally the same number, but semantically it should be
sizeof.
Change-Id: I97b6ac05192ad477b246a23ce00c5c91abfd938a
|
|
Fixes: CID#182318
Change-Id: I3ad9d01cbffa287adce55b3569667b58a2d3556b
|
|
Change-Id: I90eda8405f2d2eddfb041ca38b34fe30c397e09d
|
|
In commit [1], the channel activation kind was modified out-of-context to use
Immediate Assignment in case of intra-cell re-assignment. This so far hasn't
worked out in tests, so instead stay with the strategy to use
RSL_ACT_INTER_ASYNC also for re-assignment within the same cell. We may move to
RSL_ACT_INTRA_IMM_ASS in a separate patch after proper testing.
[1]: 5eaa4fb821751b70ad2b864d8765ff96bd301996,
I2d91765c1f9719c64fd99426a872cecc724215db
"HO: add indicators for inter-cell and async ho, use for chan act type",
Note that so far, no re-assignment within cells is triggered by the current
handover decision algorithm, so the effect will be really noticeable with
handover decision 2 that is coming up.
See feature OS#2949 which asks for implementing actual RR Assignment to
handover within a cell.
Related: OS#2949
Change-Id: Ia3d979094fa16620f1acc5933418797829710ba8
|
|
For unconnected BTS, the channel load would report a "bogus channel load
sample" every second (on RLL debug). Instead, skip unusable BTS.
This follows up on commit 6cee893a0f2c4e53155a2631aff12a5f615b973d /
I57e38f6d6ba3b23cc6e1f9520b90261dbb1f1cec
'Make "waiting indicator" of IMMEDIATE ASSIGN REJECT dynamic.'
Change-Id: I627fe10e1f5c1f2f23745c906320871024b5c8c3
|
|
Add two-space indent to many items.
Change-Id: I34e3c8928871fc41b9551ab0502a42140ccbdda8
|
|
Change-Id: I77039824b85a14b9d7bdfe6d2f717679b6886915
|
|
Change-Id: I07d4a48af3154ee4d904686f230a51b8b8a94ff9
|
|
The gsm_network VTY was partly shared between libmsc and libbsc in the old
openbsc.git; now osmo-bsc.git has its own copy, so merge all of it into
bsc_vty.c.
This leaves common_cs_vty.c practically empty; leave removal of the file to
later, when we drop the entire libcommon-cs in
I07d4a48af3154ee4d904686f230a51b8b8a94ff9.
Note that gsmnet_from_vty() is also already declared in bsc/vty.h.
Change-Id: I6f3a596f31762b48afed39a85a343c400826300f
|
|
These functions were originally shared between libmsc and libbsc in the old
openbsc.git; now osmo-bsc.git has its own copies, so move them into libbsc.
Change-Id: Ie411c2ce8008accee54782a442d6361e50777a54
|
