10 May
2023
10 May
'23
7:07 p.m.
Dear Harald,
A long time passed since I worked with the Nokia Site family and
OpenBSC. I managed to save an UltraSite cabinet from scrap, so I try
to revive it for a museum.
On the old NITB versions I managed to make this work once, now I am
trying with the new (at least to me) Osmo-BSC implementation.
To keep it simple, only one TRX is configured:
OML <--> E1 TS 1 (64kbit)
RSL <--> E1 TS 2 (64kbit)
TRXSIG <--> E1 TS 3 and 4
DAHDI is used with a Digium Wildcard TE110P T1/E1 Board.
Osmo-BSC is able to do the OML bootstrap, but the RSL waits for LAPD endlessly.
My first question is: should Osmo-BSC be able to bootstrap the BTS
fully (all the way to "on air" mode) if it is not (yet) connected to
any other core element (MGW, MSC, STP) ?
This is the Osmo-BSC log (after the NOKIA_BTS_RESET command + the
reset_wait_time passed):
DLLAPD input/lapd.c:245 (0:1-T1-S62): LAPD Allocating SAP for SAPI=62
/ TEI=1 (d l=0x56284cfbd220, sap=0x56284cfbd200)
DLLAPD input/lapd.c:255 (0:1-T1-S62): k=1 N200=3 N201=260 T200=1.0 T203=10.0
DLLAPD input/lapd.c:519 (0:1-T1-S62): LAPD DL-ESTABLISH request TEI=1 SAPI=62
DLLAPD input/lapd.c:654 (0:1-T1-S62) LAPD DL-ESTABLISH confirm TEI=1 SAPI=62
DNM bts_nokia_site.c:63 (bts=0) bootstrapping OML
DNM bts_nokia_site.c:1729 (bts=0) Rx ABIS_OM_MDISC_FOM
DNM bts_nokia_site.c:1573 (bts=0) Rx (0x82) NOKIA_BTS_OMU_STARTED
DNM bts_nokia_site.c:1583 (bts=0) Rx BTS type = 17 (UltraSite GSM 900)
DNM bts_nokia_site.c:1098 (bts=0) Sending NOKIA_BTS_START_DOWNLOAD_REQ
DNM bts_nokia_site.c:1729 (bts=0) Rx ABIS_OM_MDISC_FOM
DNM bts_nokia_site.c:1573 (bts=0) Rx (0x84) NOKIA_BTS_MF_REQ
DNM bts_nokia_site.c:1729 (bts=0) Rx ABIS_OM_MDISC_FOM
DNM bts_nokia_site.c:1573 (bts=0) Rx (0x88) NOKIA_BTS_CONF_REQ
DNM bts_nokia_site.c:1098 (bts=0) Sending NOKIA_BTS_ACK
DNM bts_nokia_site.c:1260 (bts=0) Sending multi-segment 0
DNM bts_nokia_site.c:1260 (bts=0) Sending multi-segment 1
DNM bts_nokia_site.c:1729 (bts=0) Rx ABIS_OM_MDISC_FOM
DNM bts_nokia_site.c:1573 (bts=0) Rx (0x81) NOKIA_BTS_ACK
DNM bts_nokia_site.c:1604 (bts=0) Rx ACK = 1
DLLAPD input/lapd.c:245 (0:2-T1-S0): LAPD Allocating SAP for SAPI=0 /
TEI=1 (dl= 0x56284d252a20, sap=0x56284d252a00)
DLLAPD input/lapd.c:255 (0:2-T1-S0): k=2 N200=3 N201=260 T200=1.0 T203=10.0
DLLAPD input/lapd.c:519 (0:2-T1-S0): LAPD DL-ESTABLISH request TEI=1 SAPI=0
DLLAPD lapd_core.c:421 (0:2-T1-S0) sending MDL-ERROR-IND cause 1 from
state LAPD _STATE_IDLE
DLLAPD input/lapd.c:658 (0:2-T1-S0) LAPD DL-RELEASE indication TEI=1 SAPI=0
DLLAPD input/lapd.c:282 (0:2-T1-S0): LAPD Freeing SAP for SAPI=0 /
TEI=1 (dl=0x5 6284d252a20, sap=0x56284d252a00)
DCHAN lchan_fsm.c:1779
lchan(0-0-0-CCCH_SDCCH4-0)[0x56284d251770]{UNUSED}: (type =NONE) lchan
allocation failed in state UNUSED: LCHAN_EV_TS_ERROR
DCHAN lchan_fsm.c:197
lchan(0-0-0-CCCH_SDCCH4-0)[0x56284d251770]{UNUSED}: (type= NONE) lchan
activation failed (lchan allocation failed in state UNUSED: LCHAN_EV
_TS_ERROR)
DCHAN lchan_fsm.c:1779
lchan(0-0-0-CCCH_SDCCH4-1)[0x56284d2519b0]{UNUSED}: (type =NONE) lchan
allocation failed in state UNUSED: LCHAN_EV_TS_ERROR
DCHAN lchan_fsm.c:197
lchan(0-0-0-CCCH_SDCCH4-1)[0x56284d2519b0]{UNUSED}: (type= NONE) lchan
activation failed (lchan allocation failed in state UNUSED: LCHAN_EV
_TS_ERROR)
DCHAN lchan_fsm.c:1779
lchan(0-0-0-CCCH_SDCCH4-2)[0x56284d251bf0]{UNUSED}: (type =NONE) lchan
allocation failed in state UNUSED: LCHAN_EV_TS_ERROR
DCHAN lchan_fsm.c:197
lchan(0-0-0-CCCH_SDCCH4-2)[0x56284d251bf0]{UNUSED}: (type= NONE) lchan
activation failed (lchan allocation failed in state UNUSED: LCHAN_EV
_TS_ERROR)
DCHAN lchan_fsm.c:1779
lchan(0-0-0-CCCH_SDCCH4-3)[0x56284d251e30]{UNUSED}: (type =NONE) lchan
allocation failed in state UNUSED: LCHAN_EV_TS_ERROR
DCHAN lchan_fsm.c:197
lchan(0-0-0-CCCH_SDCCH4-3)[0x56284d251e30]{UNUSED}: (type= NONE) lchan
activation failed (lchan allocation failed in state UNUSED: LCHAN_EV
_TS_ERROR)
Would be nice to make this old beast running again.
Much appreciate any and all help.
Regards,
Csaba