def __init__(self, burst_file, timeslot, subchannel, mode, fnr_start):
gr.top_block.__init__(self, "Top Block")
self.burst_file_source = grgsm.burst_file_source(burst_file)
self.timeslot_filter = grgsm.burst_timeslot_filter(timeslot)
self.fnr_filter_start = grgsm.burst_fnr_filter(grgsm.FILTER_GREATER_OR_EQUAL, fnr_start)
# we only listen for a timespan of 12 SDCCH messages for the CMC
self.fnr_filter_end = grgsm.burst_fnr_filter(grgsm.FILTER_LESS_OR_EQUAL, fnr_start + 51 * 10000)
if mode == "BCCH_SDCCH4":
self.subchannel_filter = grgsm.burst_sdcch_subslot_filter(grgsm.SS_FILTER_SDCCH4, subchannel)
self.demapper = grgsm.gsm_bcch_ccch_sdcch4_demapper(timeslot_nr=timeslot, )
else:
self.subchannel_filter = grgsm.burst_sdcch_subslot_filter(grgsm.SS_FILTER_SDCCH8, subchannel)
self.demapper = grgsm.gsm_sdcch8_demapper(timeslot_nr=timeslot, )
self.demapper = grgsm.gsm_sdcch8_demapper(timeslot_nr=timeslot, )
self.decoder = grgsm.control_channels_decoder()
self.extract_cmc = grgsm.extract_cmc()
self.msg_connect((self.burst_file_source, 'out'), (self.timeslot_filter, 'in'))
self.msg_connect((self.timeslot_filter, 'out'), (self.subchannel_filter, 'in'))
self.msg_connect((self.subchannel_filter, 'out'), (self.fnr_filter_start, 'in'))
self.msg_connect((self.fnr_filter_start, 'out'), (self.fnr_filter_end, 'in'))
self.msg_connect((self.fnr_filter_end, 'out'), (self.demapper, 'bursts'))
self.msg_connect((self.demapper, 'bursts'), (self.decoder, 'bursts'))
self.msg_connect((self.decoder, 'msgs'), (self.extract_cmc, 'msgs'))
def __init__(self, timeslot, burst_file, mode, show_gprs):
gr.top_block.__init__(self, "Top Block")
self.gsm_burst_file_source = grgsm.burst_file_source(burst_file)
self.gsm_burst_timeslot_filter = grgsm.burst_timeslot_filter(timeslot)
if mode == 'BCCH_SDCCH4':
self.demapper = grgsm.gsm_bcch_ccch_sdcch4_demapper(
timeslot_nr=timeslot, )
else:
self.demapper = grgsm.gsm_sdcch8_demapper(timeslot_nr=timeslot, )
self.gsm_control_channels_decoder = grgsm.control_channels_decoder()
self.gsm_extract_cmc = grgsm.extract_cmc()
self.gsm_extract_immediate_assignment = grgsm.extract_immediate_assignment(
False, not show_gprs, True)
self.gsm_extract_system_info = grgsm.extract_system_info()
self.msg_connect((self.gsm_burst_file_source, 'out'),
(self.gsm_burst_timeslot_filter, 'in'))
self.msg_connect((self.gsm_burst_timeslot_filter, 'out'),
(self.demapper, 'bursts'))
self.msg_connect((self.demapper, 'bursts'),
(self.gsm_control_channels_decoder, 'bursts'))
self.msg_connect((self.gsm_control_channels_decoder, 'msgs'),
(self.gsm_extract_cmc, 'msgs'))
self.msg_connect((self.gsm_control_channels_decoder, 'msgs'),
(self.gsm_extract_immediate_assignment, 'msgs'))
self.msg_connect((self.gsm_control_channels_decoder, 'msgs'),
(self.gsm_extract_system_info, 'msgs'))
def __init__(self):
gr.hier_block2.__init__(
self, "Cmc Analyzer Block",
gr.io_signature(0, 0, 0),
gr.io_signature(0, 0, 0),
)
self.message_port_register_hier_in("in")
self.decoder = grgsm.control_channels_decoder()
self.extract_system_info = grgsm.extract_system_info()
self.extract_cmc = grgsm.extract_cmc()
self.collect_system_info = grgsm.collect_system_info()
self.msg_connect((self.decoder, 'msgs'), (self.extract_cmc, 'msgs'))
self.msg_connect((self.decoder, 'msgs'), (self.extract_system_info, 'msgs'))
self.msg_connect((self.decoder, 'msgs'), (self.collect_system_info, 'msgs'))
self.msg_connect((self, 'in'), (self.decoder, 'bursts'))