Prediction and Simulation

7.8.1 Predictions

Path: [Explorer/Operations/Predictions/Properties] User can then select the type of prediction required.

Parameter Description

Prediction Group Selects a coverage prediction group

Tx_ID Indicates the transmitter name, which is set in the properties of a single transmitter in the Transmitters folder.

LTEFTP (UL) Indicates the number of uplink users corresponding to the FTP service. LTEFTP (DL) Indicates the number of downlink users corresponding to the FTP service.

LTE (UL) VideoConferencing Indicates the number of uplink users corresponding to the video conferencing service LTE (DL) VideoConferencing Indicates the number of downlink users corresponding to the video conferencing service

LTEVoIP (UL) Indicates the number of uplink users corresponding to the VoIP service LTEVoIP (DL) Indicates the number of downlink users corresponding to the VoIP service LTE (UL) WebBrowsing Indicates the number of uplink users corresponding to the Web browsing service LTE (DL) WebBrowsing Indicates the number of downlink users corresponding to the Web browsing service

II. Advanced Resolution

Indicates the resolution of the prediction map.

If the precision is not specified for a prediction, the default precision (50m) is used for the prediction. Otherwise, the precision specified for the prediction is used. In general, the prediction precision is the same as the map precision.

Intra-Frequency Handover (dB) Indicates the handover threshold of intra-frequency cells. This parameter is valid during the prediction of the counters Handover Area and Overlapping Zones

Inter-Frequency Handover (dB) Indicates the handover threshold of inter-frequency cells. This parameter is valid during the prediction of the counters Handover Area and Overlapping Zones.

Polygon Indicates the area calculated in coverage prediction.

Neighbour load Loading of Neighbour cells. Please refer to Load Setting section With Shadow Indicates whether shadow fading is considered in the calculation Cell Edge Coverage

Probability

Indicates the probability of cell edge coverage, ie, the probability that the receive signal strength is stronger than the specified threshold at the edge of a cell

Indoor Coverage Indicates whether penetration loss is considered in the calculation

RS Shifting

Indicates whether frequency offset is considered in the calculation.

If RS Shifting is selected during the prediction of the counter DL RS SINR, it indicates that the interference is calculated according to values of cell PCIs after the modulo operation is performed. If cell PCIs are not planned, only the interference on the RS is taken into consideration.

Frequency Name Indicates the name of a frequency band

III. Condition

Parameter Description

Parameter on the left of the inequality

Indicates the lower limit of the predicted value. No calculation is performed if the value of the parameter in the middle of the equality is lower than this value.

Parameter in the middle of

the inequality Indicates the method used for the current prediction. Parameter on the right of the

inequality

Indicates the upper limit of the predicted value. No calculation is performed if the value of the parameter in the middle of the equality is higher than this value.

Service Indicates a service type

Terminal Indicates a terminal type

Mobility Indicates a mobility type

Interferer Reception

Threshold (dBm) Indicates the interference threshold

IV. Viewing Prediction Results

In either Cumulative Distribution Function or Probability Distribution Function format

Or in Table format for other results such as MAC throughput

7.8.2 Simulation

Traffic Map needs to be created prior to running simulations. Once it is ready, Planner can adjust the “Source Traffic” table as below.

Parameter Description

Global Scaling Factor Indicates the scaling factor of user number.

Number of users = Size x User density x Scaling factor of user number Select Traffic Maps Indicates a traffic map to be selected.

Select Calculate Area Indicates a calculation area to be selected. I. Setting

Finally, configuration of “Advance Parameters” Table is also required

Parameter Description

Number of TTI

Indicates the number of transmission time intervals (TTIs) within a snapshot. U-Net adopts the semi-dynamic simulation to obtain the instantaneous network information as per TTI within a snapshot. A larger TTI count allow better reflection of scheduling, therefore increases the precision of simulation results but requires longer calculation period.

Site Corr Indicates the shadow fading factor on the base station side. UL IOT Convergence

Threshold

Indicates the uplink IoT convergence threshold, which is used for checking whether a network is converged.

UL Load Convergence Threshold (%)

Indicates the uplink load convergence threshold, which is use for checking whether a network is converged.

DL Load Convergence Threshold (%)

Indicates the downlink load convergence threshold, which is used for checking whether a network is converged.

UL Throughput Convergence Threshold (%)

Indicates the uplink throughput convergence threshold, which is used for checking whether a network is converged.

DL Throughput Convergence Threshold (%)

Indicates the downlink throughput convergence threshold, which is used for checking whether a network is converged.

TTI Bundling Indicates whether TTI Bundling is considered.

VMIMO Indicates whether the virtual multiple-input and multiple-output (VMIMO) is considered. IRC Indicates whether interference rejection combining (IRC) is considered.

HARQ Indicates whether hybrid automatic repeat request (HARQ) gain is considered. Fix User Position Indicates whether the location of user is fixed.

Individual users’ simulation results can also be seen by pointing the mouse on top of the user locations within the Simulation

II. Simulation Results

Various results can be obtained from the simulation results, including cell loading, IoT, and throughput results. Planners can then see the average value as well as the distributions of these results graphically.