def __init__(self):
gr.hier_block2.__init__(self,
"decode_pbch_vcvf",
gr.io_signature(3, 3, gr.sizeof_gr_complex*240), # Input signature
gr.io_signature(1, 1, gr.sizeof_float*120)) # Output signature
self.message_port_register_hier_out("cell_id")
# Define blocks and connect them
style = "tx_diversity"
self.pre_decoder_1ant = lte.pre_decoder_vcvc(1, style)
self.pre_decoder_2ant = lte.pre_decoder_vcvc(2, style)
self.demapper_1ant = lte.layer_demapper_vcvc(1, style)
self.demapper_2ant = lte.layer_demapper_vcvc(2, style)
self.interleave = gr.interleave(240*gr.sizeof_gr_complex)
self.demod = lte.qpsk_soft_demod_vcvf()
self.descr = lte.descrambling_vfvf()
self.msg_connect(self, "cell_id", self.descr, "cell_id")
self.connect( (self, 0) , (self.pre_decoder_1ant, 0) )
self.connect( (self, 1) , (self.pre_decoder_1ant, 1) )
self.connect( (self, 0) , (self.pre_decoder_2ant, 0) )
self.connect( (self, 1) , (self.pre_decoder_2ant, 1) )
self.connect( (self, 2) , (self.pre_decoder_2ant, 2) )
self.connect( self.pre_decoder_1ant, self.demapper_1ant, (self.interleave, 0) )
self.connect( self.pre_decoder_2ant, self.demapper_2ant, (self.interleave, 1) )
self.connect(self.interleave, self.descr, self)
def __init__(self, N_rb_dl, key, out_key, msg_cell_id_name, msg_N_ant_name, msg_cfi_name):
gr.hier_block2.__init__(self,
"decode_pcfich_vcm",
gr.io_signature(3, 3, gr.sizeof_gr_complex * 12 * N_rb_dl), # Input signature
gr.io_signature(0, 0, 0)) # Output signature
# register message ports
self.message_port_register_hier_out(msg_cell_id_name)
self.message_port_register_hier_out(msg_N_ant_name)
self.message_port_register_hier_in(msg_cfi_name)
# define some variables
cvlen = 16
N_ant = 2 # dummy resetable during runtime
style = "tx_diversity" # PCFICH only uses this value (no spatial multiplexing etc.)
# instatiate blocks with there parameters
self.demux = lte.pcfich_demux_vcvc(N_rb_dl, key, out_key, msg_cell_id_name)
self.predecoder = lte.pre_decoder_vcvc(N_ant, cvlen, style)
self.demapper = lte.layer_demapper_vcvc(N_ant, cvlen, style)
self.qpsk = lte.qpsk_soft_demod_vcvf(cvlen)
self.descrambler = lte.pcfich_descrambler_vfvf(out_key, msg_cell_id_name)
self.unpack = lte.cfi_unpack_vf(out_key, msg_cfi_name)
# Connect defined blocks
self.connect((self, 0), (self.demux, 0), (self.predecoder, 0))
self.connect((self, 1), (self.demux, 1), (self.predecoder, 1))
self.connect((self, 2), (self.demux, 2), (self.predecoder, 2))
self.connect(self.predecoder, self.demapper, self.qpsk, self.descrambler, self.unpack)
# Don't forget the message ports
self.msg_connect(self, msg_N_ant_name, self.predecoder, msg_N_ant_name)
self.msg_connect(self, msg_N_ant_name, self.demapper, msg_N_ant_name)
self.msg_connect(self, msg_cell_id_name, self.demux, msg_cell_id_name)
self.msg_connect(self, msg_cell_id_name, self.descrambler, msg_cell_id_name)
self.msg_connect(self.unpack, msg_cfi_name, self, msg_cfi_name)
def test_001_parts(self):
print "test 001 PARTS!!!"
# This test is for integration
# all parts expect Demux are tested if they decode CFI correctly
self.tb2 = gr.top_block ()
cell_id = 124
N_ant = 2
style = "tx_diversity"
cvlen = 16
key = "subframe"
msg_buf_name = "cfi"
cfi = 1
data = []
exp_pc = []
for ns in range(10):
cfi_seq = get_cfi_sequence(cfi)
scr = scramble_cfi_sequence(cfi_seq, cell_id, 2*ns)
mod = qpsk_modulation(scr)
lay = layer_mapping(mod, N_ant, style)
prc = pre_coding(lay, N_ant, style)
prc_prep = [prc[0][i]+prc[1][i] for i in range(len(prc[0]))]
#print np.shape(prc)
prep = prepare_for_demapper_block(lay, N_ant, style)
exp_pc.extend(prep)
data.extend(prc_prep)
taglist = get_tag_list(len(data)/16, key, 10)
self.src = blocks.vector_source_c(data, False, cvlen, taglist)
h0 = [complex(1,0)]*len(data)
h1 = [complex(1,0)]*len(data)
self.src1 = blocks.vector_source_c(h0, False, cvlen)
self.src2 = blocks.vector_source_c(h1, False, cvlen)
self.predecoder = lte.pre_decoder_vcvc(N_ant, cvlen, style)
self.snk = blocks.vector_sink_c(cvlen)
self.demapper = lte.layer_demapper_vcvc(N_ant, cvlen, style)
self.qpsk = lte.qpsk_soft_demod_vcvf(cvlen)
self.descr = lte.pcfich_descrambler_vfvf(key, msg_buf_name)
self.descr.set_cell_id(cell_id)
self.cfi = lte.cfi_unpack_vf(key, msg_buf_name)
self.tb2.connect(self.src, (self.predecoder, 0))
self.tb2.connect(self.src1, (self.predecoder, 1))
self.tb2.connect(self.src2, (self.predecoder, 2))
self.tb2.connect(self.predecoder, self.demapper)
self.tb2.connect(self.predecoder, self.snk)
self.tb2.connect(self.demapper, self.qpsk, self.descr, self.cfi)
self.tb2.run()
print "test 001 PARTS FINISHED!!!\n"
def test_002_pcfich(self):
print "test_002_pcfich"
# some constants
cell_id = 124
N_ant = 2
style= "tx_diversity"
vlen = 16
ns = 0
# new top_block because even the interface changes
self.tb2 = gr.top_block()
# generate test data together with the expected output
data = []
exp_res = []
for cfi in range(4):
cfi_seq = get_cfi_sequence(cfi+1)
scr_cfi_seq = scramble_cfi_sequence(cfi_seq, cell_id, ns)
mod_cfi_seq = qpsk_modulation(scr_cfi_seq)
lay_cfi_seq = layer_mapping(mod_cfi_seq, N_ant, style)
lay_cfi_prep = prepare_for_demapper_block(lay_cfi_seq, N_ant, style)
exp_res.extend(lay_cfi_prep)
pc_cfi_seq = pre_coding(lay_cfi_seq, N_ant, style)
pc_cfi_seq = [pc_cfi_seq[0][i]+pc_cfi_seq[1][i] for i in range(len(pc_cfi_seq[0]))]
data.extend(pc_cfi_seq)
# dummy channel estimates
intu2 = [complex(1,0)]*len(data)
intu3 = [complex(1,0)]*len(data)
# get blocks
self.src1 = blocks.vector_source_c( data, False, vlen)
self.src2 = blocks.vector_source_c( intu2, False, vlen)
self.src3 = blocks.vector_source_c( intu3, False, vlen)
self.pd = lte_swig.pre_decoder_vcvc(1, vlen, style)
self.snk = blocks.vector_sink_c(vlen)
# connect all blocks
self.tb2.connect(self.src1, (self.pd,0) )
self.tb2.connect(self.src2, (self.pd,1) )
self.tb2.connect(self.src3, (self.pd,2) )
self.tb2.connect(self.pd, self.snk)
self.pd.set_N_ant(N_ant)
# run flowgraph
self.tb2.run()
# compare result with expected result
res = self.snk.data()
self.assertComplexTuplesAlmostEqual(res, exp_res)
def setUp (self):
self.tb = gr.top_block ()
intu1 = [0]*240
intu2 = [0]*240
intu3 = [0]*240
self.src1 = gr.vector_source_c( intu1, False, 240)
self.src2 = gr.vector_source_c( intu2, False, 240)
self.src3 = gr.vector_source_c( intu3, False, 240)
self.pd = lte_swig.pre_decoder_vcvc(2,'tx_diversity')
self.snk = gr.vector_sink_c(240)
self.tb.connect(self.src1,(self.pd,0) )
self.tb.connect(self.src2,(self.pd,1) )
self.tb.connect(self.src3,(self.pd,2) )
self.tb.connect(self.pd,self.snk)
def setUp (self):
self.tb = gr.top_block ()
N_ant = 2
vlen = 240
style = 'tx_diversity'
intu1 = [0]*vlen
intu2 = [0]*vlen
intu3 = [0]*vlen
self.src1 = blocks.vector_source_c( intu1, False, vlen)
self.src2 = blocks.vector_source_c( intu2, False, vlen)
self.src3 = blocks.vector_source_c( intu3, False, vlen)
self.pd = lte_swig.pre_decoder_vcvc(N_ant, vlen, style)
self.snk = blocks.vector_sink_c(vlen)
self.tb.connect(self.src1,(self.pd,0) )
self.tb.connect(self.src2,(self.pd,1) )
self.tb.connect(self.src3,(self.pd,2) )
self.tb.connect(self.pd,self.snk)
def __init__(self):
gr.top_block.__init__(self, "LTE flowgraph")
Qt.QWidget.__init__(self)
self.setWindowTitle("LTE flowgraph")
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
##################################################
# Variables
##################################################
self.fftlen = fftlen = 512
self.cpl0 = cpl0 = 160*fftlen/2048
self.cpl = cpl = 144*fftlen/2048
self.slotl = slotl = 7*fftlen+6*cpl+cpl0
self.samp_rate = samp_rate = slotl/0.0005
self.style = style = "tx_diversity"
self.interp_val = interp_val = int(samp_rate/1e4)
self.N_rb_dl = N_rb_dl = 6
##################################################
# Blocks
##################################################
self.eq = lte.linear_OFDM_equalizer_hier_vcvc(N_rb_dl)
self.descr = lte.descrambling_vfvf()
self.demux = lte.pbch_demux_vcvc(N_rb_dl)
self.daemon = lte.cell_id_daemon(self.eq.eq, self.demux, self.descr)
self.qtgui_sink_x_0 = qtgui.sink_c(
1024, #fftsize
firdes.WIN_BLACKMAN_hARRIS, #wintype
0, #fc
samp_rate, #bw
"QT GUI Plot", #name
True, #plotfreq
True, #plotwaterfall
True, #plottime
True, #plotconst
)
self._qtgui_sink_x_0_win = sip.wrapinstance(self.qtgui_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_sink_x_0_win)
self.lte_viterbi_vfvb_0 = lte.viterbi_vfvb()
self.lte_remove_cp_cvc_1 = lte.remove_cp_cvc(fftlen)
self.lte_rate_unmatch_vff_0 = lte.rate_unmatch_vff()
self.lte_qpsk_soft_demod_vcvf_0 = lte.qpsk_soft_demod_vcvf()
self.lte_pss_sync_hier_cc_0 = lte.pss_sync_hier_cc(fftlen)
self.lte_pre_decoder_vcvc_0_0 = lte.pre_decoder_vcvc(2, style)
self.lte_pre_decoder_vcvc_0 = lte.pre_decoder_vcvc(1, style)
self.lte_mib_unpack_vb_0 = lte.mib_unpack_vb()
self.lte_layer_demapper_vcvc_0_0 = lte.layer_demapper_vcvc(2, style)
self.lte_layer_demapper_vcvc_0 = lte.layer_demapper_vcvc(1, style)
self.lte_hier_sss_sync_cc_0 = lte.hier_sss_sync_cc(self.daemon, fftlen)
self.lte_hier_freq_estimate_cc_0 = lte.hier_freq_estimate_cc(fftlen)
self.lte_extract_occupied_tones_vcvc_0 = lte.extract_occupied_tones_vcvc(N_rb_dl,fftlen)
self.lte_crc_calculator_vbvb_0 = lte.crc_calculator_vbvb()
self.lte_cp_time_freq_sync_cc_0 = lte.cp_time_freq_sync_cc(fftlen)
self.gr_vector_to_stream_0 = gr.vector_to_stream(gr.sizeof_gr_complex*1, 240)
self.gr_throttle_0 = gr.throttle(gr.sizeof_gr_complex*1, samp_rate)
self.gr_interleave_0 = gr.interleave(gr.sizeof_gr_complex*240)
self.gr_file_source_0 = gr.file_source(gr.sizeof_gr_complex*1, "/home/demel/Dokumente/Messungen_31_10_2012/samples_12.5MSps_20dB.iq", False)
self.fft_vxx_0 = fft.fft_vcc(fftlen, True, (window.rectangular(fftlen)), False, 1)
self.blks2_rational_resampler_xxx_0 = blks2.rational_resampler_ccc(
interpolation=interp_val,
decimation=1250,
taps=None,
fractional_bw=None,
)
##################################################
# Connections
##################################################
self.connect((self.gr_file_source_0, 0), (self.blks2_rational_resampler_xxx_0, 0))
self.connect((self.blks2_rational_resampler_xxx_0, 0), (self.gr_throttle_0, 0))
self.connect((self.lte_hier_freq_estimate_cc_0, 0), (self.lte_hier_sss_sync_cc_0, 0))
self.connect((self.lte_pss_sync_hier_cc_0, 0), (self.lte_hier_freq_estimate_cc_0, 0))
self.connect((self.lte_cp_time_freq_sync_cc_0, 0), (self.lte_pss_sync_hier_cc_0, 0))
self.connect((self.gr_throttle_0, 0), (self.lte_cp_time_freq_sync_cc_0, 0))
self.connect((self.lte_hier_sss_sync_cc_0, 0), (self.lte_remove_cp_cvc_1, 0))
self.connect((self.fft_vxx_0, 0), (self.lte_extract_occupied_tones_vcvc_0, 0))
self.connect((self.lte_remove_cp_cvc_1, 0), (self.fft_vxx_0, 0))
self.connect((self.lte_extract_occupied_tones_vcvc_0, 0), (self.eq, 0))
self.connect((self.lte_pre_decoder_vcvc_0, 0), (self.lte_layer_demapper_vcvc_0, 0))
self.connect((self.eq, 0), (self.demux, 0))
self.connect((self.eq, 1), (self.demux, 1))
self.connect((self.eq, 2), (self.demux, 2))
self.connect((self.lte_pre_decoder_vcvc_0_0, 0), (self.lte_layer_demapper_vcvc_0_0, 0))
self.connect((self.lte_layer_demapper_vcvc_0_0, 0), (self.gr_interleave_0, 1))
self.connect((self.demux, 1), (self.lte_pre_decoder_vcvc_0_0, 1))
self.connect((self.demux, 1), (self.lte_pre_decoder_vcvc_0, 1))
self.connect((self.demux, 0), (self.lte_pre_decoder_vcvc_0, 0))
self.connect((self.demux, 2), (self.lte_pre_decoder_vcvc_0_0, 2))
self.connect((self.demux, 0), (self.lte_pre_decoder_vcvc_0_0, 0))
self.connect((self.lte_qpsk_soft_demod_vcvf_0, 0), (self.descr, 0))
self.connect((self.gr_interleave_0, 0), (self.lte_qpsk_soft_demod_vcvf_0, 0))
self.connect((self.lte_layer_demapper_vcvc_0, 0), (self.gr_interleave_0, 0))
self.connect((self.descr, 0), (self.lte_rate_unmatch_vff_0, 0))
self.connect((self.lte_crc_calculator_vbvb_0, 1), (self.lte_mib_unpack_vb_0, 1))
self.connect((self.lte_crc_calculator_vbvb_0, 0), (self.lte_mib_unpack_vb_0, 0))
self.connect((self.lte_viterbi_vfvb_0, 0), (self.lte_crc_calculator_vbvb_0, 0))
self.connect((self.lte_rate_unmatch_vff_0, 0), (self.lte_viterbi_vfvb_0, 0))
self.connect((self.gr_interleave_0, 0), (self.gr_vector_to_stream_0, 0))
self.connect((self.gr_vector_to_stream_0, 0), (self.qtgui_sink_x_0, 0))
def __init__(self): gr.top_block.__init__(self, "LTE flowgraph") ################################################## # Variables ################################################## self.fftlen = fftlen = 2048 self.cpl0 = cpl0 = 160*fftlen/2048 self.cpl = cpl = 144*fftlen/2048 self.slotl = slotl = 7*fftlen+6*cpl+cpl0 self.samp_rate = samp_rate = slotl/0.0005 self.style = style = "tx_diversity" self.interp_val = interp_val = int(samp_rate/1e4) self.N_rb_dl = N_rb_dl = 6 ################################################## # Blocks ################################################## self.eq = lte.linear_OFDM_estimator_hier_vcvc(N_rb_dl) self.descr = lte.descrambling_vfvf() self.demux = lte.pbch_demux_vcvc(N_rb_dl) self.daemon = lte.cell_id_daemon(self.eq.eq, self.demux, self.descr) self.lte_viterbi_vfvb_0 = lte.viterbi_vfvb() self.lte_remove_cp_cvc_1 = lte.remove_cp_cvc(fftlen) self.lte_rate_unmatch_vff_0 = lte.rate_unmatch_vff() self.lte_qpsk_soft_demod_vcvf_0 = lte.qpsk_soft_demod_vcvf() self.lte_pre_decoder_vcvc_0_0 = lte.pre_decoder_vcvc(2, style) self.lte_pre_decoder_vcvc_0 = lte.pre_decoder_vcvc(1, style) self.lte_mib_unpack_vb_0 = lte.mib_unpack_vb() self.lte_layer_demapper_vcvc_0_0 = lte.layer_demapper_vcvc(2, style) self.lte_layer_demapper_vcvc_0 = lte.layer_demapper_vcvc(1, style) self.lte_hier_sss_sync_cc_0 = lte.hier_sss_sync_cc(self.daemon, fftlen) self.lte_hier_pss_sync_cc_0 = lte.hier_pss_sync_cc(fftlen) self.lte_hier_freq_estimate_cc_0 = lte.hier_freq_estimate_cc(fftlen) self.lte_extract_occupied_tones_vcvc_0 = lte.extract_occupied_tones_vcvc(N_rb_dl,fftlen) self.lte_crc_calculator_vbvb_0 = lte.crc_calculator_vbvb() self.lte_cp_time_freq_sync_cc_0 = lte.cp_time_freq_sync_cc(fftlen) self.gr_throttle_0 = gr.throttle(gr.sizeof_gr_complex*1, samp_rate) self.gr_interleave_0 = gr.interleave(gr.sizeof_gr_complex*240) self.gr_file_source_0 = gr.file_source(gr.sizeof_gr_complex*1, "/home/demel/Dokumente/Messungen/Messung_LTE_2012-05-23_12:47:32.dat", False) self.fft_vxx_0 = fft.fft_vcc(fftlen, True, (window.rectangular(fftlen)), False, 1) self.blks2_rational_resampler_xxx_0 = blks2.rational_resampler_ccc( interpolation=interp_val, decimation=1000, taps=None, fractional_bw=None, ) ################################################## # Connections ################################################## self.connect((self.gr_file_source_0, 0), (self.blks2_rational_resampler_xxx_0, 0)) self.connect((self.blks2_rational_resampler_xxx_0, 0), (self.gr_throttle_0, 0)) self.connect((self.lte_hier_freq_estimate_cc_0, 0), (self.lte_hier_sss_sync_cc_0, 0)) self.connect((self.gr_throttle_0, 0), (self.lte_cp_time_freq_sync_cc_0, 0)) self.connect((self.lte_hier_sss_sync_cc_0, 0), (self.lte_remove_cp_cvc_1, 0)) self.connect((self.fft_vxx_0, 0), (self.lte_extract_occupied_tones_vcvc_0, 0)) self.connect((self.lte_remove_cp_cvc_1, 0), (self.fft_vxx_0, 0)) self.connect((self.lte_pre_decoder_vcvc_0, 0), (self.lte_layer_demapper_vcvc_0, 0)) self.connect((self.lte_pre_decoder_vcvc_0_0, 0), (self.lte_layer_demapper_vcvc_0_0, 0)) self.connect((self.lte_layer_demapper_vcvc_0_0, 0), (self.gr_interleave_0, 1)) self.connect((self.demux, 1), (self.lte_pre_decoder_vcvc_0_0, 1)) self.connect((self.demux, 1), (self.lte_pre_decoder_vcvc_0, 1)) self.connect((self.demux, 0), (self.lte_pre_decoder_vcvc_0, 0)) self.connect((self.demux, 2), (self.lte_pre_decoder_vcvc_0_0, 2)) self.connect((self.demux, 0), (self.lte_pre_decoder_vcvc_0_0, 0)) self.connect((self.lte_qpsk_soft_demod_vcvf_0, 0), (self.descr, 0)) self.connect((self.gr_interleave_0, 0), (self.lte_qpsk_soft_demod_vcvf_0, 0)) self.connect((self.lte_layer_demapper_vcvc_0, 0), (self.gr_interleave_0, 0)) self.connect((self.descr, 0), (self.lte_rate_unmatch_vff_0, 0)) self.connect((self.lte_crc_calculator_vbvb_0, 1), (self.lte_mib_unpack_vb_0, 1)) self.connect((self.lte_crc_calculator_vbvb_0, 0), (self.lte_mib_unpack_vb_0, 0)) self.connect((self.lte_viterbi_vfvb_0, 0), (self.lte_crc_calculator_vbvb_0, 0)) self.connect((self.lte_rate_unmatch_vff_0, 0), (self.lte_viterbi_vfvb_0, 0)) self.connect((self.lte_cp_time_freq_sync_cc_0, 0), (self.lte_hier_pss_sync_cc_0, 0)) self.connect((self.lte_hier_pss_sync_cc_0, 0), (self.lte_hier_freq_estimate_cc_0, 0)) self.connect((self.lte_extract_occupied_tones_vcvc_0, 0), (self.eq, 0)) self.connect((self.eq, 0), (self.demux, 0)) self.connect((self.eq, 1), (self.demux, 1)) self.connect((self.eq, 2), (self.demux, 2))
def __init__(self): gr.top_block.__init__(self, "LTE flowgraph") ################################################## # Variables ################################################## self.fftlen = fftlen = 2048 self.cpl0 = cpl0 = 160*fftlen/2048 self.cpl = cpl = 144*fftlen/2048 self.slotl = slotl = 7*fftlen+6*cpl+cpl0 self.samp_rate = samp_rate = slotl/0.0005 self.style = style = "tx_diversity" self.interp_val = interp_val = int(samp_rate/1e4) self.N_rb_dl = N_rb_dl = 6 ################################################## # Blocks ################################################## self.lte_viterbi_vfvb_0 = lte.viterbi_vfvb() self.lte_remove_cp_cvc_1 = lte.remove_cp_cvc(fftlen) self.lte_rate_unmatch_vff_0 = lte.rate_unmatch_vff() self.lte_qpsk_soft_demod_vcvf_0 = lte.qpsk_soft_demod_vcvf() self.lte_pre_decoder_vcvc_0_0 = lte.pre_decoder_vcvc(2, style) self.lte_pre_decoder_vcvc_0 = lte.pre_decoder_vcvc(1, style) self.lte_mib_unpack_vb_0 = lte.mib_unpack_vb() self.lte_layer_demapper_vcvc_0_0 = lte.layer_demapper_vcvc(2, style) self.lte_layer_demapper_vcvc_0 = lte.layer_demapper_vcvc(1, style) self.lte_hier_sss_sync_cc_1 = lte.hier_sss_sync_cc(fftlen) self.lte_hier_pss_sync_cc_0 = lte.hier_pss_sync_cc(fftlen) self.lte_hier_freq_estimate_cc_0 = lte.hier_freq_estimate_cc(fftlen) self.lte_extract_occupied_tones_vcvc_0 = lte.extract_occupied_tones_vcvc(N_rb_dl,fftlen) self.lte_crc_calculator_vbvb_0 = lte.crc_calculator_vbvb() self.lte_cp_time_freq_sync_cc_0 = lte.cp_time_freq_sync_cc(fftlen) self.lte_channel_estimator_0 = lte.channel_estimator(N_rb_dl) self.gr_throttle_0 = gr.throttle(gr.sizeof_gr_complex*1, samp_rate/4) self.gr_interleave_0 = gr.interleave(gr.sizeof_gr_complex*240) self.gr_file_source_0_0 = gr.file_source(gr.sizeof_gr_complex*1, "/home/demel/gr-lte/data/Messung_Resampled_3072MSps.dat", False) self.fft_vxx_0 = fft.fft_vcc(fftlen, True, (window.rectangular(fftlen)), False, 1) self.descr = lte.descrambling_vfvf() self.demux = lte.pbch_demux_vcvc(N_rb_dl) ################################################## # Connections ################################################## self.connect((self.lte_cp_time_freq_sync_cc_0, 0), (self.lte_hier_pss_sync_cc_0, 0)) self.connect((self.lte_hier_pss_sync_cc_0, 0), (self.lte_hier_freq_estimate_cc_0, 0)) self.connect((self.gr_throttle_0, 0), (self.lte_cp_time_freq_sync_cc_0, 0)) self.connect((self.gr_file_source_0_0, 0), (self.gr_throttle_0, 0)) self.connect((self.fft_vxx_0, 0), (self.lte_extract_occupied_tones_vcvc_0, 0)) self.connect((self.lte_remove_cp_cvc_1, 0), (self.fft_vxx_0, 0)) self.connect((self.descr, 0), (self.lte_rate_unmatch_vff_0, 0)) self.connect((self.lte_qpsk_soft_demod_vcvf_0, 0), (self.descr, 0)) self.connect((self.demux, 2), (self.lte_pre_decoder_vcvc_0_0, 2)) self.connect((self.demux, 1), (self.lte_pre_decoder_vcvc_0_0, 1)) self.connect((self.demux, 0), (self.lte_pre_decoder_vcvc_0_0, 0)) self.connect((self.demux, 1), (self.lte_pre_decoder_vcvc_0, 1)) self.connect((self.demux, 0), (self.lte_pre_decoder_vcvc_0, 0)) self.connect((self.lte_channel_estimator_0, 2), (self.demux, 2)) self.connect((self.lte_channel_estimator_0, 1), (self.demux, 1)) self.connect((self.lte_channel_estimator_0, 0), (self.demux, 0)) self.connect((self.lte_extract_occupied_tones_vcvc_0, 0), (self.lte_channel_estimator_0, 0)) self.connect((self.lte_rate_unmatch_vff_0, 0), (self.lte_viterbi_vfvb_0, 0)) self.connect((self.lte_viterbi_vfvb_0, 0), (self.lte_crc_calculator_vbvb_0, 0)) self.connect((self.lte_crc_calculator_vbvb_0, 0), (self.lte_mib_unpack_vb_0, 0)) self.connect((self.lte_crc_calculator_vbvb_0, 1), (self.lte_mib_unpack_vb_0, 1)) self.connect((self.lte_layer_demapper_vcvc_0, 0), (self.gr_interleave_0, 0)) self.connect((self.gr_interleave_0, 0), (self.lte_qpsk_soft_demod_vcvf_0, 0)) self.connect((self.lte_layer_demapper_vcvc_0_0, 0), (self.gr_interleave_0, 1)) self.connect((self.lte_pre_decoder_vcvc_0_0, 0), (self.lte_layer_demapper_vcvc_0_0, 0)) self.connect((self.lte_pre_decoder_vcvc_0, 0), (self.lte_layer_demapper_vcvc_0, 0)) self.connect((self.lte_hier_freq_estimate_cc_0, 0), (self.lte_hier_sss_sync_cc_1, 0)) self.connect((self.lte_hier_sss_sync_cc_1, 0), (self.lte_remove_cp_cvc_1, 0)) ################################################## # Asynch Message Connections ################################################## self.msg_connect(self.lte_hier_sss_sync_cc_1, "cell_id", self.demux, "cell_id") self.msg_connect(self.lte_hier_sss_sync_cc_1, "cell_id", self.descr, "cell_id") self.msg_connect(self.lte_hier_sss_sync_cc_1, "cell_id", self.lte_channel_estimator_0, "cell_id")