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Harald Welte laforge at gnumonks.orgHi! I've now merged the 'laforge/hopping' branch to master, and wanted to update you on the state of frequency hopping support: First, the bad news: It is still not working with the BS-11 :( All OML attributes that I can think of are set correctly, they have been verified from wireshark, and the BTS acknowledges all those attributes. On RSL, the channels are activated the right way, and even the SYSTEM INFORMATIO 1 (cell channel allocation) as well as the chennel description and mobile allocation parts of the IMMEDIATE ASSIGN are encoded correctly. Still, the MS and BTS fail to establish any hopping channel. Dieter is now trying to get the BS-11 hopping configuration working with his Racal 6113. If that works, the protocol trace should reveal where we still do something wrong. If you want to play with it: The BTS attributes as well as the TRX attributes are not yet 100% finished like they should be. So you need to apply the attached patch as a hack on top of master. Please note that the bs11_attr_radio_trx1 contains hard-coded ARFCN 117 and 119, i.e. you will have to modify this unless your hopping sequence also only consists of those two ARFCN. I've also attached a config file for your reference. -- - Harald Welte <laforge at gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6) -------------- next part -------------- A non-text attachment was scrubbed... Name: hopping.patch Type: text/x-diff Size: 2039 bytes Desc: not available URL: <http://lists.osmocom.org/pipermail/openbsc/attachments/20100620/fcb11781/attachment.bin> -------------- next part -------------- ! ! OpenBSC (0.9.0.845-57c4) 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 auth policy closed location updating reject cause 13 encryption a5 0 neci 0 rrlp mode none mm info 0 handover 0 handover window rxlev averaging 10 handover window rxqual averaging 1 handover window rxlev neighbor averaging 10 handover power budget interval 6 handover power budget hysteresis 3 handover maximum distance 9999 timer t3101 10 timer t3103 0 timer t3105 0 timer t3107 0 timer t3109 0 timer t3111 0 timer t3113 60 timer t3115 0 timer t3117 0 timer t3119 0 timer t3141 0 bts 0 type bs11 band GSM900 cell_identity 0 location_area_code 1 training_sequence_code 7 base_station_id_code 63 ms max power 15 cell reselection hysteresis 4 rxlev access min 0 channel allocator descending rach tx integer 9 rach max transmission 7 oml e1 line 0 timeslot 1 sub-slot full oml e1 tei 25 gprs mode none trx 0 rf_locked 0 arfcn 121 nominal power 24 max_power_red 12 rsl e1 line 0 timeslot 1 sub-slot full rsl e1 tei 1 timeslot 0 phys_chan_config CCCH hopping enabled 0 e1 line 0 timeslot 1 sub-slot full 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 trx 1 rf_locked 0 arfcn 119 nominal power 24 max_power_red 12 rsl e1 line 0 timeslot 1 sub-slot full rsl e1 tei 2 timeslot 0 phys_chan_config SDCCH8 hopping enabled 1 hopping sequence-number 0 hopping maio 0 hopping arfcn add 117 hopping arfcn add 119 timeslot 1 phys_chan_config TCH/F hopping enabled 1 hopping sequence-number 0 hopping maio 0 hopping arfcn add 117 hopping arfcn add 119 e1 line 0 timeslot 4 sub-slot 1 timeslot 2 phys_chan_config TCH/F hopping enabled 1 hopping sequence-number 0 hopping maio 0 hopping arfcn add 117 hopping arfcn add 119 e1 line 0 timeslot 4 sub-slot 2 timeslot 3 phys_chan_config TCH/F hopping enabled 1 hopping sequence-number 0 hopping maio 0 hopping arfcn add 117 hopping arfcn add 119 e1 line 0 timeslot 4 sub-slot 3 timeslot 4 phys_chan_config TCH/F hopping enabled 1 hopping sequence-number 0 hopping maio 0 hopping arfcn add 117 hopping arfcn add 119 e1 line 0 timeslot 5 sub-slot 0 timeslot 5 phys_chan_config TCH/F hopping enabled 1 hopping sequence-number 0 hopping maio 0 hopping arfcn add 117 hopping arfcn add 119 e1 line 0 timeslot 5 sub-slot 1 timeslot 6 phys_chan_config TCH/F hopping enabled 1 hopping sequence-number 0 hopping maio 0 hopping arfcn add 117 hopping arfcn add 119 e1 line 0 timeslot 5 sub-slot 2 timeslot 7 phys_chan_config TCH/F hopping enabled 1 hopping sequence-number 0 hopping maio 0 hopping arfcn add 117 hopping arfcn add 119 e1 line 0 timeslot 5 sub-slot 3