OpenBSC January 2018

openbsc@lists.osmocom.org

29 participants
54 discussions

Handover log
by Alexander Chemeris 08 Jan '18

08 Jan '18

Hello, all, I wonder if anyone has thought about introducing a handover log (to a file or a DB) to OsmoBSC/OsmoNITB? For small deployments <6 BTS you can just add every BTS to neighbor lists of each other and don't worry, but once you get above that, you face a handover optimization issue. I.e. which BTS should be neighbors of which other ones. Initial assigning of the neighbors can be done by simply looking at coverage maps of each BTS. But once the network is actually used there is a lot of useful information about the network performance which can be extracted from the handover history - which cells have issues handing over to each other, etc. -- Regards, Alexander Chemeris. CTO/Founder, Fairwaves, Inc. https://fairwaves.co

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Unable to make calls
by Anindya Sankar Roy 03 Jan '18

03 Jan '18

Hello, I have built osmo-bsc, osmo-msc, osmo-hlr, osmo-stp, osmo-mgcp and connected them successfuly in the same computer. When I try to make calls it gives the folowing error in MGCP osmo-mgw -c newmgw.cfg <0001> telnet_interface.c:104 telnet at 127.0.0.1 4243 <0011> mgw_main.c:336 Configured for MGCP. <0011> mgcp_protocol.c:827 DLCX: endpoint:0x1 deleting connection ... <0011> mgcp_protocol.c:832 DLCX: endpoint:0x1 endpoint is not holding a connection. <0011> mgcp_protocol.c:827 DLCX: endpoint:0x2 deleting connection ... <0011> mgcp_protocol.c:832 DLCX: endpoint:0x2 endpoint is not holding a connection. <0011> mgcp_protocol.c:453 CRCX: creating new connection ... <0011> mgcp_protocol.c:79 endpoint:1 RTP-setup: Endpoint is in loopback mode, stopping here! <0000> mgcp_network.c:188 endpoint:0x1 Failed to send dummy RTP packet. <0011> mgcp_protocol.c:650 CRCX: endpoint:0x1 connection successfully created <0011> mgcp_protocol.c:827 DLCX: endpoint:0x1 deleting connection ... <0011> mgcp_protocol.c:895 DLCX: endpoint:0x1 missing ci (connectionIdentifier), will remove all connections at once <0011> mgcp_protocol.c:453 CRCX: creating new connection ... <0011> mgcp_protocol.c:79 endpoint:1 RTP-setup: Endpoint is in loopback mode, stopping here! <0000> mgcp_network.c:188 endpoint:0x1 Failed to send dummy RTP packet. PFA configuration files for all the blocks that I have been using to run the system and also the pcap trace. Please tell me what am I doing wrong due to which I am unable to make calls. Thanks Anindya calltrace.pcap <https://drive.google.com/a/toshniwalcontrols.com/file/d/1vmDuNJuePVDB9XCHtw…>

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GPS Timing Out-of-Sync Monitoring
by Ron 02 Jan '18

02 Jan '18

Hi All, Happy New Year. I’m not sure if it is appropriate to asked this in this forum or to the SDR vendor but here goes. Is there a way to monitor if the GPS Timing is still sync or not while all the OSMO elements are running? We are using an Ettus B210 with a GPSDO, osmo-trx, osmo-bts-trx, and osmo-nitb running in UBUNTU 16.04 TIA. Best Regard, Ron Menez ron.menez(a)entropysolution.com<mailto:ron.menez@entropysolution.com>

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Osmocom Year 2017 Review
by Harald Welte 02 Jan '18

02 Jan '18

Dear all, I've written up a "short" review of what I perceive as the most important events in the Osmocom Cellular Infrastructure projects in 2017. See http://osmocom.org/news/84 for all details, or below for a raw copy+paste: h1. Osmocom Review 2017 This is a review of the most significant changes and events in the Osmocom Cellular Infrastructure projects in 2017 h2. January 2017 * announce of first ever public [[OsmoCon:]] conference in April * osmo-bts ** Add Abis OML failure event reporting ** fix memory leaks in osmo-bts-{sysmo,lc15} at every channel activation * openbsc/osmo-bsc ** support multiple UARFCNs in SI2quater * osmo-hlr ** add test suite for 2G and 3G authentication ** fix UMTS AKA re-sync h2. February 2017 * weekly manual testing with related weekly test reports to mailing list * "heads-up about the (lack of a )future of osmo-nitb":http://lists.osmocom.org/pipermail/openbsc/2017-February/010300.html * "heads-up about libosmo-sccp SIGTRAN work":http://lists.osmocom.org/pipermail/openbsc/2017-February/010274.html * "sysmo-usim-tool":http://lists.osmocom.org/pipermail/openbsc/2017-February/010317.html * libosmo-abis ** unix domain socket support (for Ericsson L2TP) * osmo-bts ** fix AMR HR DTX FSM logic ** fix SACCH sending fo system information with enum value > 7 ** osmo-bts-trx: fix RXGAIN and POWER parameters on second TRX ** fix TCH/H interleaving table bit position ** sysmoBTS 1020/1100: slow power ramp-up on TRX enable * osmo-sgsn ** fix PDP context activation memory allocation bug ** integrate support for UMTS AKA * openggsn ** fix kernel-gtp tunnel creation/removal for GTPv1 ** release 0.93 h3. March 2017 * "cgit improvements":http://lists.osmocom.org/pipermail/openbsc/2017-March/010448.html (about page, change-ID hyperlinks, issue hyperlinks) * Add README.md files to all our repositories * libosmocore ** migrate gsm 05.03 coding from OsmoBTS to libosmocore ** fix SQN / SEQ handling in UMTS AKA ** 3GPP AoIP message encoding/decoding * libosmo-abis ** fix ever-increasing jitter buffer * libosmo-netif ** handle SCTP in in stream server ** doxygen documentation on stream an datagram modules * osmo-bts ** octphy: CBCH support ** include MS timing offset in RSL measurements * osmo-sgsn ** handle IMSIs with leading zeroes * osmo-bsc ** fix T3186 encoding in SI13 ** Improved Ericsson OM2000/RBS2000 support ** new ctrl2soap proxy in python * osmo-hlr ** add CTRL interface ** fix SQN/SEQ handling in UMTS AKA h3. April 2017 * "update of coding style for longer line lengths":http://lists.osmocom.org/pipermail/openbsc/2017-April/010502.html * [[osmo-dev-con:OsmoCon2017]] and [[osmo-dev-con:OsmoDevCon2017]] * libosmocore ** "control interface for osmo_fsm":http://lists.osmocom.org/pipermail/openbsc/2017-April/010542.html * libosmo-netif ** fix file descriptor leak in error paths ** work around linux kenrel SCTP bug with sender_dry_events ** RTP marker bit support * libosmo-sccp ** Add new [[libosmo-sigtran:]] library with SS7 AS/ASP Link/Linkset handling, M3UA support, new FSM based SCCP implementation ** Add [[osmo-stp:]] program * osmo-bts ** inform BSC of PCU disconnect ** fix measurement reporting period ** exclude idle channels from uplink measurement processing ** octphy: measurement reports h3. May 2017 * libosmocore ** fix embedded builds ** import and generalise 'sercomm' from osmocom-bb into libosmocore ** SSE optimized convolutional coder ** fix wrong GSM FR codec SID frame generation ** doxygen docs for libosmocoding * osmo-bsc ** TS 04.14 mobile station side loop control * osmo-bts ** consistently check all RSL and OML TLVs for minimum length value ** fix bit-order in every HR codec parameter (spec compliance) ** OML get/set attribute handling ** SI2quater support ** bypass radio link timeout for lab testing * osmo-bsc ** PCU socket support for BSC-colocated PCU for Ericsson RBS2000 ** reelase 1.0.1 * "M3UA and SUA testing as part of jenkins":http://lists.osmocom.org/pipermail/openbsc/2017-May/010698.html * "osmo-gsm-tester produces successful runs with NITB as well as new AoIP":http://lists.osmocom.org/pipermail/openbsc/2017-May/010760.html h3. June 2017 * libosmocore ** doxygen autobrief ** doxygen documentation for libosmogb * osmo-bts ** use CLOCK_MONOTONIC timer for GSM frame timer ** PDTCH loopback support h3. July 2017 * "Plan for openbsc.git split and code review":http://lists.osmocom.org/pipermail/openbsc/2017-July/010914.html * libosmocore ** PDP charging characteristics in GSUP ** PRBS sequence generators ** multicast IP related helper functions ** 'make release' target * libosmo-sccp ** SCCP address book * osmo-bts ** new virtual BTS @osmo-bts-virtual@ for testing without radio hardware ** don't send dummy UI frames on unused BCCH slots on TC=5 ** GSMTAP: don't log/send fill frames consisting of only padding * osmo-hlr ** change to default GSUP port 4222 h3. August 2017 * "Support for SMPP Delivery Receipt / GSM03.40 Status Report":http://lists.osmocom.org/pipermail/openbsc/2017-August/011023.html * "Jenkins now executing M3UA, SUA and GGSN testsuite":http://lists.osmocom.org/pipermail/openbsc/2017-August/011043.html * libosmocore ** fix crash in lapd_est_req() * libosmo-abis ** release 0.4.0 * osmo-bts ** osmo-bts-trx: fix MS power control loop ** release 0.6.0 ** support sending/removing SI13 to/from PCU * osmo-bsc ** indicate R99+ MSC in SI3 to enable UMTS AKA over GERAN * osmo-sgsn ** properly report GERAN/UTRAN mode in PDP CTX ACT REQ to GGSN * osmo-msc ** implement IuCS support ** split openbsc.git into osmo-bsc.git, osmo-msc.git and osmo-sgsn.git * openggsn ** Add IPv6 address pool and IPV6 user (inner) plane support ** release 0.94 h3. September 2017 * libosmocore.git ** "'show talloc-context' VTY introspection":http://lists.osmocom.org/pipermail/openbsc/2017-June/010771.html ** CTRL parsing unit tests ** unification of vty exit/end commands * osmo-hlr ** CTRL interface tests -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

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OpenBSC January 2018