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* Enable sending RLC3
* Use values from the trace..
This is not intended to be merged to master as this enables the
RLC3 that the comment claims to only work on EGPRS enabled models
and it is changing timers to hex indicating a change where none
happened... This is mostly for testing.
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Take the timeouts from the struct.
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Be able to tune the RACH settings of the BTS via the vty interface,
by default they are initialized to -1 which means we will use the
content of the static array (BTS default) and can be changed via
the VTY interface. I have verified the setting on the nanoBTS with
wireshark and I have tested writing the config file.
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Only page if we have a load that is acceptable for paging. This
option is off by default, and can be enabled per bts. The idea
is that when we have no resources right now we will not page as
it will only create more RACHs and increase the load.
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Conflicts:
openbsc/include/openbsc/abis_rsl.h
openbsc/include/openbsc/mgcp.h
openbsc/src/abis_rsl.c
openbsc/src/chan_alloc.c
openbsc/src/handover_logic.c
openbsc/src/mgcp/mgcp_network.c
openbsc/src/vty/command.c
openbsc/src/vty_interface.c
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This causes some config file breakage but sounds like a much cleaner
approach than to have two separate config variables for this.
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Add two new counters to count the RF Failures and the RLL Release
failure and make them available via the vty interface.
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Add two new counters to count the RF Failures and the RLL Release
failure and make them available via the vty interface.
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When we issue a RF Channel Release in case of a failure we receive
RLL release indications after the channel was tearn down and we
issue another RF Channel Release as a result. The channel allocator
might have already allocated this channel and we release the channel
again with another MS on it.
Make rsl_rf_chan_release take an error argument and make it set
a new state in case of an error and change the RF Channel Release
ack to not set the state back to none in case of an error but wait
for a timeout that is a bit higher than T3111.
I tested this with removing the battery during a phonecall and
waiting for the channel failure. With this test we only send the
release once.
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Store the mapping from request to channel type in the GSM Network
struct as there is some policy involved with handling the request.
E.g. in a half rate network we don't want emergy calls to be getting
a TCH/F, or we want to have a different policy for early/late assignment
of phone calls.
Update the table when creating the network and when the neci is changed.
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Keep a static version as the shell script is not dealing well
with branch tags/names containing text.
Resolve merge conflict in the Makefile.am by adding both sides
to the list of sources for the libbsc.a
Conflicts:
openbsc/configure.in
openbsc/src/Makefile.am
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* Move to libosmocore
* Move to new debugging architecture
* Register the BTS types
* Has only been compile tested
Conflicts:
openbsc/include/openbsc/Makefile.am
openbsc/include/openbsc/gsm_data.h
openbsc/include/openbsc/ipaccess.h
openbsc/include/openbsc/mgcp.h
openbsc/include/openbsc/msgb.h
openbsc/include/openbsc/tlv.h
openbsc/src/Makefile.am
openbsc/src/abis_rsl.c
openbsc/src/bsc_init.c
openbsc/src/bsc_mgcp.c
openbsc/src/chan_alloc.c
openbsc/src/debug.c
openbsc/src/gsm_subscriber_base.c
openbsc/src/msgb.c
openbsc/src/rest_octets.c
openbsc/src/sccp/sccp.c
openbsc/src/vty/command.c
openbsc/src/vty_interface.c
openbsc/tests/Makefile.am
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This new gprs-conf branch is intended to contain everything needed
to configure GPRS in the nanoBTS, but without implementing the SGSN/GGSN
functionality.
The SGSN/GGSN development will happen in a branch based on this branch
called "gprs-sgsn"
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This library is intended to collect all generic/common funcitionality
of all Osmocom.org projects, including OpenBSC but also OsmocomBB
The library currently includes the following modules:
bitvec, comp128, gsm_utils, msgb, select, signal, statistics, talloc, timer,
tlv_parse, linuxlist
msgb allocation error debugging had to be temporarily disabled as it depends on
'debug.c' functionality which at the moment remains in OpenBSC
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In 39315c47989326275823d1589425ee62d15bc823 we introduced
per-bts OML attribute parser definitions and disallowed
a BTS of type unknown.
However, the VTY code first allocates a BTS with unknown type.
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Some NM attributes are defined differently depending on
the BTS type. Having one big nm_att_tlvdef[] table for
all BTS types is no longer sufficient. This patch
* introduces 'struct gsm_bts_model' to describe a BTS model
* adds definitions of gsm_bts_model for BS-11 and nanoBTS
* changes the abis_nm_tlv_parse() function: include a bts pointer
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Currently "write memory" will not store the rtp_base_port of the
network. Fix that by writing it out in write_net. Also set it to
4000 by default in the MGCP and in the BSC.
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Currently starting with the opencfg.cfg.nanobts and writing it out
and then trying to start again will not work. The network reject_cause
is initialized to 0 which is not a valid reject reason and when writing
this to the config file and trying to parse it will fail.
Pick roaming not allowed as a harmless option to those phones
accidently trying to connect to the BTS.
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* Be able to have a country code in the air but use a different
country code when talking to the core network.
* Now both country and network code can be different on air and
on the MSC communication.
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* Make it possible to have a different MNC in the RSL traffic
than in the core network.
* Introduce the "core network code NUMBER" variable. If it is
set this network code will be used in traffic with the MSC.
* Use the core_network_code number when sending a packet to
the MSC
* Regenerate the LAI (this is where I could have a bug) when
sending packets to the BTS.
* Add size checks.
This is not tested, I might got something wrong.
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* On start the vty code will call the abis_nm method and this
will set the administrative state to unlock/lock
* During startup the BTS will report its state as well and would
possible overwrite the set administrative. We are only going
to update the administrative if it was 0 before. This appears
to work on all of my tests. In case this will not be the case
for others we will have to split the administrative into two
sets one for the BTS and one for the BSC.
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Also, use this new function to dump lchan state on VTY and to
improve readability of RSL log messages.
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In many cases we actually want a name / unique ID for the lchan,
not just for the on-air timeslot... especially in SDCCH/8 case,
where 8 SDCCHs share one timeslot...
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this makes bsc_mgcp and ipaccess-proxy compile again
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This has the advantage that counters can be added all over the code
very easily, while having only one routine that stores all of the
current counter values to the database. The counters are synced
every 60 seconds, providing relatively fine grained statistics
about the network usage as time passes by.
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Tweaking theses can be useful especially tx-integer that influence
both the spread of rach attemps and the delay between two attemps.
Looking up GSM 04.08 3.3.1.1.2 & 10.5.2.29 can help determine good
values. The default are choosed with a wide spacing between attemps
(tx integer = 9 -> T=12 & S=217 (non-combined CCCH/SDCCH) or 115 (for
combined CCCH/SDCCH)). This alleviates the problem of responding to
several RACH attempts by a same MS, allocating several RF channels when
only 1 is needed.
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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This implements the handover algorithm (and associated parameters)
as described in Chapter 8 of the book "Performance Enhancements in
a Frequency |Hopping GSM Network" by Thomas Toftegard Nielsen and Jeroen
Wigard.
The parameters such as averaging windows are configured in struct
gsm_network. We keep some state to trakc up to 10 neighbors as
they are being reported from the MS.
This has so far only been tested in a network with two BTS that
have each other as neighbor. Networks with morge neighbors might
encounter bugs.
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When looking for the gsm_bts of a neighbor cell, use BSIC and ARFCN
tuple rather than just ARFCN for better identification purpose.
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We will need this for the actual handover algorithm implementation, as we will
only know the current BTS and the BCCH ARFCN of the strongest cell in the
measurement reports. Using this new function, we can resolve the matching
gsm_bts.
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We use a 1024-bit-sized bitvec to generate the BA and neighbor frequency list.
This bitvec is still generated from the list of all BTS's inside the BSC, but
this patch is the first step to generalize this, i.e. generate arbitrary
neighbor lists.
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We now support different RRLP modes (including "none" to disable RRLP),
you can configure it via "rrlp mode" in the "network" section of
openbsc.cfg.
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allow setting of 'cell reselection hysteresis' and 'rxlev access min' from VTY
for experiments with cell reselection.
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Without those default values, old config files will no longer work
after commit 23975e718fd456ff8be7effbb915903f1bc173be
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- Make sure that on runtime the Radio Carrier can be
locked and unlocked. The vty code calls into the
Abis NM to lock/unlock the channel and the state is
stored there.
- Make sure that on start the Radio Carries remains
offline and we are not starting it. On start the
radio carrier is either locked or unlocked. This means
the RSL will not connect until the RF is unlocked. It
will connect then. To see RSL bringup failures one
needs to parse the RSL nack message.
- When the TRX is locked on startup the RSL link will
only be established after it will be unlocked.
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