Outdoor vs Indoor Propagation

Open NetSim, Select Examples ->5G NR -> Outdoor vs Indoor then click on the tile in the middle panel to load the example as shown in below screenshot

Graphical user interface, application Description automatically generated

Figure 4‑37: List of scenarios for the example of Outdoor vs Indoor

The following network diagram illustrates, what the NetSim UI displays when you open the example configuration file.

Figure 4‑38: Network set up for studying the Outdoor

Outdoor#

Settings done in example config file:

  1. Set grid length as 1000m from Environment setting.

  2. Set the following property as shown in below Table 4‑35.

General Properties
X Coordinates Y Coordinates
gNB Properties 300 200
UE Properties 150 400

Table 4‑35: Device Positions

  1. Go to gNB properties à Interface (5G_RAN), set the following properties as shown below Table 4‑36.
Properties
Physical Layer Properties
gNB Height (m) 10
Tx_Power (dBm) 40
Duplex Mode TDD
CA_Type Inter Band CA
CA Configuration CA_2DL_1UL_n39_n41
DL_UL_Ratio 1:1

CA-1

Numerology

Bandwidth (MHz)

0

5

CA-2

Numerology

Bandwidth (MHz)

0

10

Channel Model
Pathloss Model 3G99TR38.901-7.4.1
Outdoor Scenario Rural Macro
LOS_NLOS_Selection User Defined
LOS Probability 1
Shadow Fading Model LOG_NORMAL
ShadowFading_Standard_Deviation 3G99TR38.901-7.4.1-1
Fading _and_Beamforming NO_FADING_MIMO_UNIT_GAIN
O2I Building Penetration Model LOW_LOSS_MODEL

Table 4‑36: gNB >Interface (5G_RAN) >Physical layer properties

  1. Set TX_Antenna_Count as 2 and RX_Antenna_Count as 1 in gNB properties.

  2. Set TX_Antenna_Count as 1 and RX_Antenna_Count as 2 in UE properties.

  3. Set the CBR application between source id 10 and destination id 8 with Packet Size 1460 B and IAT 20000 µs and Transport Protocol is set to UDP.

  4. Set application start time as 1 sec.

  5. The log file can enable per the information provided in Section 3.18.

  6. Plots are enabled in NetSim GUI.

  7. Run simulation for 11 sec.

Go to metrics window expand Log Files option and open LTENR.log file.

Figure 4‑39: Results Window

Note down the Total Propagation Loss, Pathloss, Shadow Fading Loss, O2I Penetration Loss, Thermal Noise, and SNR values for downlink Layer1 ad Uplink Layer1.

Figure 4‑40: LTENR Log file

Indoor#

The following network diagram illustrates, what the NetSim UI displays when you open the example configuration file.

Figure 4‑41: Network set up for studying the Indoor

Settings done in example config file:

  1. Set grid length as 1000m from Environment setting.

  2. Set the following property as shown in below Table 4‑37.

General Properties
X Coordinate Y Coordinate
Building Properties 50 100
gNB Properties 300 200
UE Properties 150 400

Table 4‑37: Devices Positions

  1. Go to the building properties, set Length_X as 105.52m and Breadth_Y as 118.51m.

  2. Go to gNB properties à Interface (5G_RAN), set the following properties as shown below Table 4‑38.

Properties
Physical Layer Properties
gNB Height (m) 10
Tx_Power (dBm) 40
Duplex Mode TDD
CA_Type Inter Band CA
CA Configuration CA_2DL_1UL_n39_n41
DL_UL_Ratio 1:1

CA-1

Numerology

Bandwidth (MHz)

0

5

CA-2

Numerology

Bandwidth (MHz)

0

10

Channel Model
Pathloss Model 3G99TR38.901-7.4.1
Outdoor Scenario Rural Macro
LOS_NLOS_Selection User Defined
LOS Probability 1
Shadow Fading Model LOG_NORMAL
ShadowFading_Standard_Deviation 3G99TR38.901-7.4.1-1
Fading _and_Beamforming NO_FADING_MIMO_UNIT_GAIN
O2I Building Penetration Model LOW_LOSS_MODEL

Table 4‑38: gNB >Interface (5G_RAN) >Physical layer properties

  1. Set TX_Antenna_Count as 1 and RX_Antenna_Count as 1 in gNB properties.

  2. Set TX_Antenna_Count as 1 and RX_Antenna_Count as 1 in UE properties.

  3. Set the CBR application between source id 10 and destination id 8 with Packet Size 1460 B and IAT 20000 µs and Transport Protocol is set to UDP.

  4. Set application Start_Time as 1 sec.

  5. The log file can enable per the information provided in Section 3.18.

  6. Plots are enabled in NetSim GUI.

  7. Run simulation for 11 sec.

Note down the Total Propagation Loss, Pathloss, Shadow Fading Loss, O2I Penetration Loss, Thermal Noise, and Signal to Noise Ratio (SNR)

Result:

Note: The values of Carrier_Id=0 present in the log file have been considered in the tables given below. (SNR values shown for downlink Layer1 ad Uplink Layer1).

Outdoor Indoor
Total Propagation Loss (dB) 90.16 108.38
PathLoss (dB) 86.77 86.77
Shadow Fading Loss (dB) 3.38 3.38
O2I Penetration Loss (dB) 0 18.22
Thermal Noise (dB) -106.84 -106.84
Uplink Signal to Noise Ratio (SNR) (dB) 39.67 21.45
Downlink Signal to Noise Ratio (SNR) of Layer 1 53.66 38.45

Table 4‑39: Outdoor and Indoor result comparisons