Exemple #1
0
    def __init__(self, ):

        gr.hier_block2.__init__(self, "decode_bch_vfvb",
				gr.io_signature(1,1, gr.sizeof_float*120),  # Input signature
				gr.io_signature2(2,2, gr.sizeof_char*24, gr.sizeof_char)) # Output signature
        
        # Define blocks        
        self.rate_unmatch = lte.rate_unmatch_vff()
        self.viterbi = lte.viterbi_vfvb()
        self.crc = lte.crc_calculator_vbvb()

        self.connect(self, self.rate_unmatch, self.viterbi, (self.crc, 0), (self, 0))
        self.connect((self.crc, 1), (self, 1))
	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))
Exemple #3
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))
Exemple #4
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.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")
 def setUp (self):
     self.tb   = gr.top_block ()
     self.src  = gr.vector_source_f( [0]*120 , False, 120)
     self.lru  = lte_swig.rate_unmatch_vff()
     self.snk = gr.vector_sink_f(120)
     self.tb.connect(self.src, self.lru, self.snk)