[Anne]

Hello
When I change LTE_sim_main_launcher_femtocells to ‘omnidirectional_eNodeBs’
meet this error:
Reference to non-existent field ‘network_geometry’.

Error in LTE_load_params_dependant (line 450)
switch LTE_config.network_geometry

Error in LTE_sim_main (line 31)
LTE_config = LTE_load_params_dependant(LTE_config);

Error in LTE_sim_main_launcher_femtocells (line 60)
output_results_file = LTE_sim_main(LTE_config);

How can i solve it?
Thank You
Best Regards

[Martin Müller]

Hi Anne,

I suggest that you use the femtocell config file (by leaving the simulation type as ‘tri_sector_plus_femtocells’).

In order to get a hexagonalgrid of macro-BS with omnidirectional antennas, add

LTE_config.antenna.antenna_gain_pattern = ‘omnidirectional’;

in the launcher file or in the femto-confic file.

Best,
Martin

[Anne]

Hi
Thank you for your answer and guidance
(femtocell config file)
in Which sub file is located?
At First Which m.file to start with?

[Anne]

Hi Dr.Martin
I Change simulation type to comment.
you mean that?

[Martin Müller]

Hi Anne:

1. use the launcher file sim_main_launcher_files/LTE_sim_main_launcher_demo_femtocells.m

2. open the associated config file +simulation_config/hex_grid_tilted_with_femtocells.m

3. add the line “LTE_config.antenna.antenna_gain_pattern = ‘omnidirectional’;” to the config file.

This will create a hexagonal grid of macros with omnidirectional antennas and two femto cells per macro BS.

Best regards,
Martin

[Anne]

Hi Dr.Martin
According to what you said
I did three steps above But meet These Errors nevertheless:

Reference to non-existent field ‘network_geometry’.

Error in LTE_load_params_dependant (line 450)
switch LTE_config.network_geometry

Error in LTE_sim_main (line 31)
LTE_config = LTE_load_params_dependant(LTE_config);

Error in LTE_sim_main_launcher_demo_femtocells (line 42)
output_results_file = LTE_sim_main(LTE_config);

Thanks a lot for your guidance

[Martin Müller]

Hi Anne,

do you use the default configuration of the launcher and config files?

Please make sure that the simulation type is set to

simulation_type = ‘tri_sector_plus_femtocells’;

as it is in default in the femto launcher file. In the femtocell config file, network geometry is set by default, therefore no error should occur.

Best,
Martin

[Anne]

Hi Dr.Martin
Thank You.
The Previous Error Solved. I Installation Simulator Again and dont change simulation type. And Repeat Three Steps again.
But new problem: The program run the middle true and produce fig1 and fig2 But these Errors occur:

Error using dipole (line 88)
Expected a string for the parameter name, instead the input type was ‘double’.

Error in
channel_gain_wrappers.winnerChannelFactory/generate_winner_channel_model_antenna_array (line
247)
pattern(1,:,1,:) = dipole(Az,TX_pol);

Error in channel_gain_wrappers.winnerChannelFactory/load_antenna_array (line 101)
winner_antenna_array = obj.generate_winner_channel_model_antenna_array;

Error in channel_gain_wrappers.winnerChannelFactory/generate_FF_trace (line 503)
obj.load_antenna_array;

Error in phy_modeling.generateChannelMatrix (line 18)
H_trace0 = channel_factory_H0.generate_FF_trace(config.trace_length_s/config.TTI_length);

Error in LTE_init_get_microscale_fading_SL_trace>generate_trace_v2 (line 149)
[H_0_RB, H_i_RB] = phy_modeling.generateChannelMatrix(…

Error in LTE_init_get_microscale_fading_SL_trace (line 113)
pregenerated_ff = generate_trace_v2(LTE_config, config);

Error in LTE_sim_main (line 93)
pregenerated_ff = LTE_init_get_microscale_fading_SL_trace(LTE_config);

Error in LTE_sim_main_launcher_demo_femtocells (line 42)
output_results_file = LTE_sim_main(LTE_config);

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