Re: RBS 2308 Protocol Error

Hi, Maybe its not completely related, but my experience with Nokia Site is to use full E1 timeslots (64kbit) for RSL and OML signalling, otherwise it is not working, and this is not a Nokia limitation. Just try using: rsl e1 line 0 timeslot 1 sub-slot full and for the rest: timeslot 0 phys_chan_config CCCH+SDCCH4 hopping enabled 0 e1 line 0 timeslot 2 sub-slot 0 timeslot 1 phys_chan_config TCH/F hopping enabled 0 e1 line 0 timeslot 2 sub-slot 1 timeslot 2 phys_chan_config TCH/F hopping enabled 0 e1 line 0 timeslot 2 sub-slot 2 timeslot 3 phys_chan_config TCH/F hopping enabled 0 e1 line 0 timeslot 2 sub-slot 3 timeslot 4 phys_chan_config TCH/F hopping enabled 0 e1 line 0 timeslot 3 sub-slot 0 timeslot 5 phys_chan_config TCH/F hopping enabled 0 e1 line 0 timeslot 3 sub-slot 1 timeslot 6 phys_chan_config TCH/F hopping enabled 0 e1 line 0 timeslot 3 sub-slot 2 timeslot 7 phys_chan_config TCH/F hopping enabled 0 e1 line 0 timeslot 3 sub-slot 3 And don't forget to configure the BTS Abis allocation accordingly! Also for DAHDI, you will need to use the correct config with CCS signalling. This is an example for the system.conf for an E1 based BTS: span=1,0,0,ccs,hdb3,crc4 bchan=1-31 Regards, Csaba ----- Eredeti üzenet ----- Feladó: "Labs" <rp.labs(a)gmx.ch> Címzett: "Caleb Pal" <cleb(a)defcon-3.net>et>, openbsc(a)lists.osmocom.org Elküldött üzenetek: Csütörtök, 2016. December 1. 23:07:11 Tárgy: Re: RBS 2308 Protocol Error Hello again, I will reply to my own email because I did a mistake. Sorry for any inconvenience. I mismatched the DAHDI conf with another one that had E1 config inside. DAHDI config is fine for T1 link but OpenBSC is still is not clear if timeslot allocation is OK or maybe someone with more experience can share why they are allocated like that. I checked the default config in osmocom-nitb and also the one attached by Caled and it is not clear for me why we have the following arrangement compared to the E/// documentation for BSS: I would re-write Caleb's config as it is the below one for an Unconcentrated LAPD: oml e1 line 0 timeslot 1 sub-slot 0 -->> CF is only found in timeslot 1 trx 0 rf_locked 0 arfcn 512 nominal power 24 max_power_red 12 rsl e1 line 0 timeslot 1 sub-slot 1 -->> TRXC is multiplexed only for first TRX. The other RSL/TRXC links for other TRXes use the full timeslot. rsl e1 tei 0 timeslot 0 phys_chan_config BCCH+CCCH --> air timeslot 0 runs BCCH and CCCH hopping enabled 0 e1 line 0 timeslot 1 sub-slot 2 timeslot 1 -->> air timeslot 1 runs a SDCCH8 phys_chan_config SDCCH8 hopping enabled 0 e1 line 0 timeslot 2 sub-slot 3 timeslot 2 -->> subrate 0+1 are spare for 1st TRX in LAPD Unconcentrated mode. At least the E/// docs show the following: PCM TS2(spare/spare/TCH0/TCH1) PCM TS3(TCH2 /TCH3 /TCH4/TCH5) so I interpreted that subrate 0+1 are the spare ones. phys_chan_config TCH/F hopping enabled 0 e1 line 0 timeslot 3 sub-slot 2 timeslot 3 phys_chan_config TCH/F hopping enabled 0 e1 line 0 timeslot 3 sub-slot 3 timeslot 4 phys_chan_config TCH/F hopping enabled 0 e1 line 0 timeslot 4 sub-slot 0 timeslot 5 phys_chan_config TCH/F hopping enabled 0 e1 line 0 timeslot 4 sub-slot 1 timeslot 6 phys_chan_config TCH/F hopping enabled 0 e1 line 0 timeslot 4 sub-slot 2 timeslot 7 phys_chan_config TCH/F hopping enabled 0 e1 line 0 timeslot 4 sub-slot 3 Regards, Razvan On 11/29/16 8:43 PM, Labs wrote: