Hello all,
I seem to have fallen at the last hurdle to achieving my first milestone - being able to see an available network from our BS-11/OpenBSC combi on a variety of MEs. Fingers crossed it's something trivial that has been overlooked. I've included some output from bs11_config and bsc_hack below in the hope that someone may spot the issue.
Output from bs11_config during bootup:
PHASE: 1 Load SMU Intended Abis-link: Down PHASE: 1 Load SMU Intended Abis-link: Down PHASE: 2 Load MBCCU MBCCU0: No Load MBCCU1: No Load Abis-link: Down PHASE: 2 Load MBCCU MBCCU0: Load BTSCAC MBCCU1: No Load Abis-link: Down PHASE: 2 Load MBCCU MBCCU0: Load BTSCAC MBCCU1: Load BTSCAC Abis-link: Down PHASE: 2 Load MBCCU MBCCU0: Load BTSDRX MBCCU1: Load BTSCAC Abis-link: Down PHASE: 2 Load MBCCU MBCCU0: Load BTSDRX MBCCU1: Load BTSDRX Abis-link: Down PHASE: 2 Load MBCCU MBCCU0: Load BTSBBX MBCCU1: Load BTSDRX Abis-link: Down PHASE: 2 Load MBCCU MBCCU0: Load BTSBBX MBCCU1: Load BTSBBX Abis-link: Down PHASE: 2 Load MBCCU MBCCU0: Load BTSBBX MBCCU1: Load BTSBBX Abis-link: Down PHASE: 2 Load MBCCU MBCCU0: Load BTSARC MBCCU1: Load BTSBBX Abis-link: Down PHASE: 2 Load MBCCU MBCCU0: Load BTSARC MBCCU1: Load BTSARC Abis-link: Down PHASE: 2 Load MBCCU MBCCU0: Load MBCCU1: Load BTSARC Abis-link: Down PHASE: 2 Load MBCCU MBCCU0: Load MBCCU1: Load BTSARC Abis-link: Down PHASE: 2 Load MBCCU MBCCU0: Load MBCCU1: Load Abis-link: Down PHASE: 3 Normal MBCCU0: Load MBCCU1: Load Abis-link: Restoring
BS11 ATTRIBUTES:
SITE MANAGER ATTRIBUTES: E1 Channel: Port=0 Timeslot=1 (Full Slot) TEI: 25
BS11 Line Interface ATTRIBUTES: PLL Mode: E1 Locked
BS11 CCLK ATTRIBUTES:
BS11 Power Amplifier 0 ATTRIBUTES: TRX Power: 30mW (GSM) LMT LOGOFF: ACK
************************************************************ Output from bs11_config with query:
LMT LOGON: ACK
PHASE: 3 Normal MBCCU0: Load MBCCU1: Load Abis-link: Up
BS11 ATTRIBUTES:
SITE MANAGER ATTRIBUTES: E1 Channel: Port=0 Timeslot=1 (Full Slot) TEI: 25
BS11 Line Interface ATTRIBUTES: PLL Mode: Standalone
BS11 CCLK ATTRIBUTES:
BS11 Power Amplifier 0 ATTRIBUTES: TRX Power: 30mW (GSM) LMT LOGOFF: ACK
************************************************************ bsc_hack startup:
DB: Database initialized. DB: Database prepared. e1_reconfig_bts(0) e1_reconfig_ts(0,0,0) e1_reconfig_ts(0,0,1) e1_reconfig_ts(0,0,2) e1_reconfig_ts(0,0,3) e1_reconfig_ts(0,0,4) e1_reconfig_ts(0,0,5) e1_reconfig_ts(0,0,6) e1_reconfig_ts(0,0,7) 1 device found id: 0 Dprotocols: 00000018 Bprotocols: 0000000e protocol: 4 nrbchan: 30 name: hfc-e1.1 activate bchan activate bchan bootstrapping OML for BTS 0 <0020> abis_nm.c:1724 Set BTS Attr (bts=0) <0020> abis_nm.c:1741 Set TRX Attr (bts=0,trx=0) <0020> abis_nm.c:1821 Set Chan Attr (bts=0,trx=0,ts=0) <0020> abis_nm.c:1821 Set Chan Attr (bts=0,trx=0,ts=1) <0020> abis_nm.c:1824 Invalid Channel Combination!!! <0020> abis_nm.c:1821 Set Chan Attr (bts=0,trx=0,ts=2) <0020> abis_nm.c:1704 CONNECT TERR TRAF Um=(bts=0,trx=0,ts=2) E1=(0,2,2) <0020> abis_nm.c:1821 Set Chan Attr (bts=0,trx=0,ts=3) <0020> abis_nm.c:1704 CONNECT TERR TRAF Um=(bts=0,trx=0,ts=3) E1=(0,2,3) <0020> abis_nm.c:1821 Set Chan Attr (bts=0,trx=0,ts=4) <0020> abis_nm.c:1704 CONNECT TERR TRAF Um=(bts=0,trx=0,ts=4) E1=(0,3,0) <0020> abis_nm.c:1821 Set Chan Attr (bts=0,trx=0,ts=5) <0020> abis_nm.c:1704 CONNECT TERR TRAF Um=(bts=0,trx=0,ts=5) E1=(0,3,1) <0020> abis_nm.c:1821 Set Chan Attr (bts=0,trx=0,ts=6) <0020> abis_nm.c:1704 CONNECT TERR TRAF Um=(bts=0,trx=0,ts=6) E1=(0,3,2) <0020> abis_nm.c:1821 Set Chan Attr (bts=0,trx=0,ts=7) <0020> abis_nm.c:1704 CONNECT TERR TRAF Um=(bts=0,trx=0,ts=7) E1=(0,3,3) bootstrapping RSL for BTS/TRX (0/0) using MCC=1 MNC=1 BSIC=63 TSC=7 <0020> abis_nm.c:606 OC=RACK(a4) INST=(00,ff,ff) STATE CHG: OP_STATE=Enabled <0020> abis_nm.c:985 LMT Event LOGON Level=2 Username=FACTORY <0020> abis_nm.c:985 LMT Event LOGOFF Level=2 Username=FACTORY
************************************************************
bsc_hack config used was the vanilla cfg included with the source (openbsc.cfg.1-1).
Any help you guys could give is much appreciated!
Regards, Paul
Hi Paul,
On Wed, Dec 02, 2009 at 10:36:53PM +0000, s4dd@losers.yore.ma wrote:
<0020> abis_nm.c:1824 Invalid Channel Combination!!!
This really sounds wrong. Can you send your openbsc.cfg along?
Hi Harald,
<0020> abis_nm.c:1824 Invalid Channel Combination!!!
This really sounds wrong. Can you send your openbsc.cfg along?
After changing the appropriate phys_chan_config of timeslot 1 from its default "SDCCH8" to "TCH/F", we are no longer getting the above warning. However, none of our MEs can see the network. Below is our current openbsc.cfg... if you can think of anything for us to try that would be fantastic!
Thanks, Paul
****************************************************************
openbsc.cfg:
! ! OpenBSC configuration saved from vty ! ! password foo ! line vty no login ! network network country code 1 mobile network code 1 short name OpenBSC long name OpenBSC timer t3101 10 timer t3113 60 bts 0 type bs11 band GSM900 cell_identity 1 location_area_code 1 training_sequence_code 7 base_station_id_code 63 oml e1 line 0 timeslot 1 sub-slot full oml e1 tei 25 trx 0 arfcn 123 rsl e1 line 0 timeslot 1 sub-slot full rsl e1 tei 1 timeslot 0 phys_chan_config CCCH+SDCCH4 e1 line 0 timeslot 1 sub-slot full timeslot 1 phys_chan_config TCH/F e1 line 0 timeslot 2 sub-slot 1 timeslot 2 phys_chan_config TCH/F e1 line 0 timeslot 2 sub-slot 2 timeslot 3 phys_chan_config TCH/F e1 line 0 timeslot 2 sub-slot 3 timeslot 4 phys_chan_config TCH/F e1 line 0 timeslot 3 sub-slot 0 timeslot 5 phys_chan_config TCH/F e1 line 0 timeslot 3 sub-slot 1 timeslot 6 phys_chan_config TCH/F e1 line 0 timeslot 3 sub-slot 2 timeslot 7 phys_chan_config TCH/F e1 line 0 timeslot 3 sub-slot 3
*************************************************
On Fri, Dec 04, 2009 at 01:53:22PM +0000, s4dd@losers.yore.ma wrote:
Hi Harald,
<0020> abis_nm.c:1824 Invalid Channel Combination!!!
This really sounds wrong. Can you send your openbsc.cfg along?
After changing the appropriate phys_chan_config of timeslot 1 from its default "SDCCH8" to "TCH/F", we are no longer getting the above warning.
Ok, as it turns out this issue is unrelated. I really don't have any other ideas as of now. Do you have any spectrum analyzer or other receiver that can be used to detect if the BTS is actually transmitting? A USRP would also do...
-
Harald Welte -
s4dd＠losers.yore.ma