inspect_single_ul_frame.m File Reference

Functions
function	inspect_single_ul_frame (dataset_filename, inspect_frame, verbose) %%Load data from the input file and inspect evm and snr %dataset_filename
id	Data ()
	figure ('Name', ['Ant ' num2str(u) ', Frame ' num2str(inspect_frame) ' Receive WaveForm'])
	tiledlayout (2, 1) %Top(Real) nexttile
	plot (real(combined_rx))
	axis ([0 inf -1 1])
	title ('Rx Real(I)')
	Bottom (Q) nexttile
	plot (imag(combined_rx))

Variables
	inspect_frame = 5
	verbose = "true"
end	samples_per_slot = double(h5readatt(dataset_filename, group_id, 'SLOT_SAMP_LEN'))
	tx_zero_prefix_len = double(h5readatt(dataset_filename, group_id, 'TX_ZERO_PREFIX_LEN'))
	data_size = double(h5readatt(dataset_filename, group_id, 'OFDM_DATA_NUM'))
	data_start = double(h5readatt(dataset_filename, group_id, 'OFDM_DATA_START'))
	data_stop = double(h5readatt(dataset_filename, group_id, 'OFDM_DATA_STOP'))
	fft_size = double(h5readatt(dataset_filename, group_id, 'OFDM_CA_NUM'))
	cp_len = double(h5readatt(dataset_filename, group_id, 'CP_LEN'))
	total_ul_symbols = double(h5readatt(dataset_filename, group_id, 'UL_SLOTS'))
	ul_pilot_symbols = double(h5readatt(dataset_filename, group_id, 'UL_PILOT_SLOTS'))
	total_users = double(h5readatt(dataset_filename, group_id, 'CL_NUM'))
	bs_antennas = double(h5readatt(dataset_filename, group_id, 'ANT_NUM'))
	pilot_symbols = double(h5readatt(dataset_filename, group_id, 'PILOT_SLOTS'))
Choose the downlink data	dataset_id = '/UplinkData'
end Dimensions[Samples, Ant, Symbol, Cells, Frame]	start = [1 1 1 1 inspect_frame]
	count = [(samples_per_slot * 2) bs_antennas total_ul_symbols 1 1]
Generate a int16 array	rx_syms_hdf5 = h5read(dataset_filename, strcat(group_id, dataset_id), start, count)
Convert to double and scale	rx_syms_scaled_double = double(rx_syms_hdf5) ./ double(intmax('int16'))
Convert to complex double Samples x User x Symbol	rx_syms_cxdouble = complex(rx_syms_scaled_double(1:2:end, :, :), rx_syms_scaled_double(2:2:end, :, :))
Split off pilots and data	rx_pilot_cxdouble = rx_syms_cxdouble(:,:,1:ul_pilot_symbols)
	rx_data_cxdouble = rx_syms_cxdouble(:,:,1+ul_pilot_symbols:end)
end Generate a int16 array	rx_pilot_hdf5 = h5read(dataset_filename, strcat(group_id,dataset_id), start, count)
Convert to double and scale	rx_pilot_scaled_double = double(rx_pilot_hdf5) ./ double(intmax('int16'))
Plot Rx waveform for	u

Function Documentation

axis()

axis

(

)

Bottom()

Bottom

(

Q

)

Data()

id Data ( )

virtual

figure()

figure

(

'Name'

)

inspect_single_ul_frame()

function inspect_single_ul_frame	(	dataset_filename	,
		inspect_frame	,
		verbose
	)

plot() [1/2]

plot

(

imag(combined_rx)

)

plot() [2/2]

plot

(

real(combined_rx)

)

tiledlayout()

tiledlayout	(	2	,
		1
	)

title()

title

(

'Rx Real(I)'

)

Variable Documentation

bs_antennas

bs_antennas = double(h5readatt(dataset_filename, group_id, 'ANT_NUM'))

count

clear start count = [(samples_per_slot * 2) bs_antennas total_ul_symbols 1 1]

cp_len

cp_len = double(h5readatt(dataset_filename, group_id, 'CP_LEN'))

data_size

data_size = double(h5readatt(dataset_filename, group_id, 'OFDM_DATA_NUM'))

data_start

data_start = double(h5readatt(dataset_filename, group_id, 'OFDM_DATA_START'))

data_stop

data_stop = double(h5readatt(dataset_filename, group_id, 'OFDM_DATA_STOP'))

dataset_id

Choose the pilot data dataset_id = '/UplinkData'

fft_size

fft_size = double(h5readatt(dataset_filename, group_id, 'OFDM_CA_NUM'))

inspect_frame

inspect_frame = 5

pilot_symbols

pilot_symbols = double(h5readatt(dataset_filename, group_id, 'PILOT_SLOTS'))

rx_data_cxdouble

rx_data_cxdouble = rx_syms_cxdouble(:,:,1+ul_pilot_symbols:end)

rx_pilot_cxdouble

Convert to complex double Samples x User x Symbol rx_pilot_cxdouble = rx_syms_cxdouble(:,:,1:ul_pilot_symbols)

rx_pilot_hdf5

clear rx_pilot_hdf5 = h5read(dataset_filename, strcat(group_id,dataset_id), start, count)

rx_pilot_scaled_double

clear rx_pilot_scaled_double = double(rx_pilot_hdf5) ./ double(intmax('int16'))

rx_syms_cxdouble

Convert to complex double Samples x User x Symbol rx_syms_cxdouble = complex(rx_syms_scaled_double(1:2:end, :, :), rx_syms_scaled_double(2:2:end, :, :))

rx_syms_hdf5

clear rx_syms_hdf5 = h5read(dataset_filename, strcat(group_id, dataset_id), start, count)

rx_syms_scaled_double

clear rx_syms_scaled_double = double(rx_syms_hdf5) ./ double(intmax('int16'))

samples_per_slot

end samples_per_slot = double(h5readatt(dataset_filename, group_id, 'SLOT_SAMP_LEN'))

start

Dimensions [Samples, Ant, Symbol, Cells, Frame] start = [1 1 1 1 inspect_frame]

total_ul_symbols

total_ul_symbols = double(h5readatt(dataset_filename, group_id, 'UL_SLOTS'))

total_users

total_users = double(h5readatt(dataset_filename, group_id, 'CL_NUM'))

tx_zero_prefix_len

tx_zero_prefix_len = double(h5readatt(dataset_filename, group_id, 'TX_ZERO_PREFIX_LEN'))

u

end clear u

Initial value:

= 1:bs_antennas
        combined_rx = reshape(squeeze(rx_syms_cxdouble(:, u, :)), [], 1)

ul_pilot_symbols

ul_pilot_symbols = double(h5readatt(dataset_filename, group_id, 'UL_PILOT_SLOTS'))

verbose

Display Info if verbose = "true"