One tab gives statistics of the simulation results. Other tabs in the simulation properties dialogue contain simula-tion results as identified by the tab title.
The Statistics tab: The Statistics tab contains the following sections:
- Request: Under Request, is data on the connection requests:
- Atoll calculates the total number of users who try to connect. This number is the result of the first random trial; radio resource allocation has not yet finished. The result depends on the traffic description and traffic input.
- During the first random trial, each user is assigned a service and an activity status. The number of users per activity status and the UL and DL throughput demands that all users could theoretically generate are provided.
- The breakdown per service (total number of users, number of users per activity status, and UL and DL throughput demands) is given.
- Results: Under Results, is data on the connection results:
- The number of iterations that were run in order to converge.
- The number and percentage users connected to a cell, the number of users per activity status, and the total UL and DL throughputs they generate. These data are also given per service.
The Sites tab: The Sites tab contains the following information per site:
- Peak RLC User Throughput (DL) (kbps): The sum of peak RLC user throughputs of all the users connected in the downlink in all the cells of the site.
- Effective RLC User Throughput (DL) (kbps): The sum of effective RLC user throughputs of all the users connected in the downlink in all the cells of the site.
- Application Level User Throughput (DL) (kbps): The sum of application level throughputs of all the users connected in the downlink in all the cells of the site.
- Peak RLC User Throughput (UL) (kbps): The sum of peak RLC user throughputs of all the users connected in the uplink in all the cells of the site.
- Effective RLC User Throughput (UL) (kbps): The sum of effective RLC user throughputs of all the users connected in the uplink in all the cells of the site.
- Application Level User Throughput (UL) (kbps): The sum of application level throughputs of all the users connected in the uplink in all the cells of the site.
- Peak RLC User Throughput (DL) (kbps) For Each Service: For each service, the sum of peak RLC user throughputs of the users connected in the downlink in all the cells of the site.
- Effective RLC User Throughput (DL) (kbps) For Each Service: For each service, the sum of effective RLC user throughputs of the users connected in the downlink in all the cells of the site.
Figure 0.51: Displaying the traffic simulation results using tool tips
- Application Level User Throughput (DL) (kbps) For Each Service: For each service, the sum of application level throughputs of the users connected in the downlink in all the cells of the site.
- Peak RLC User Throughput (UL) (kbps) For Each Service: For each service, the sum of peak RLC user throughputs of the users connected in the uplink in all the cells of the site.
- Effective RLC User Throughput (UL) (kbps) For Each Service: For each service, the sum of effective RLC user throughputs of the users connected in the uplink in all the cells of the site.
- Application Level User Throughput (UL) (kbps) For Each Service: For each service, the sum of application level throughputs of the users connected in the uplink in all the cells of the site.
The Cells tab: The Cells tab contains the following information, per site and transmitter:
- Traffic Load (DL) (%): The traffic loads of the cells calculated on the downlink during the simulation.
- Traffic Load (UL) (%): The traffic loads of the cells calculated on the uplink during the simulation.
- UL Noise Rise (dB): The noise rise of the cells calculated on the uplink during the simulation.
- Peak RLC User Throughput (DL) (kbps): The sum of peak RLC user throughputs of all the users connected in the downlink.
- Effective RLC User Throughput (DL) (kbps): The sum of effective RLC user throughputs of all the users connected in the downlink.
- Application Level User Throughput (DL) (kbps): The sum of application level throughputs of all the users connected in the downlink.
- Peak RLC User Throughput (UL) (kbps): The sum of peak RLC user throughputs of all the users connected in the uplink.
- Effective RLC User Throughput (UL) (kbps): The sum of effective RLC user throughputs of all the users connected in the uplink.
- Application Level User Throughput (UL) (kbps): The sum of application level throughputs of all the users connected in the uplink.
- Peak RLC User Throughput (DL) (kbps) For Each Service: For each service, the sum of peak RLC user throughputs of the users connected in the downlink.
- Effective RLC User Throughput (DL) (kbps) For Each Service: For each service, the sum of effective RLC user throughputs of the users connected in the downlink.
- Application Level User Throughput (DL) (kbps) For Each Service: For each service, the sum of application level throughputs of the users connected in the downlink.
- Peak RLC User Throughput (UL) (kbps) For Each Service: For each service, the sum of peak RLC user throughputs of the users connected in the uplink.
- Effective RLC User Throughput (UL) (kbps) For Each Service: For each service, the sum of effective RLC user throughputs of the users connected in the uplink.
- Application Level User Throughput (UL) (kbps) For Each Service: For each service, the sum of application level throughputs of the users connected in the uplink.
The Mobiles tab: The Mobiles tab contains the following information:
- X and Y: The coordinates of users who attempt to connect (the geographic position is determined by the second random trial).
- Height: The height of the user terminal (antenna).
- User Profile: The assigned user profile. Atoll uses the assigned service and activity status to determine the terminal and the user profile.
- Service: The service assigned during the first random trial during the generation of the user distribution.
- Terminal: The assigned terminal. Atoll uses the assigned service and activity status to determine the terminal and the user profile.
- Mobility: The mobility type assigned during the first random trial during the generation of the user distribution.
- Activity Status: The assigned activity status. It can be DL, UL, or DL+UL.
- Connection Status: The connection status indicates whether the user is connected or rejected at the end of the simulation. If connected, the connection status corresponds to the activity status. If rejected, the rejection cause is given.
- Clutter Class: The code of the clutter class where the user is located.
- Subscriber ID: The ID of the user if the user is generated from a subscriber list and not from a traffic map.
- Subscriber List: The subscriber list of the user if the user is generated from a subscriber list and not from a traffic map.
- Indoor: This field indicates whether indoor losses have been added or not.
- Serving Base Station: The serving transmitter of the subscriber.
- Reference Cell: The reference cell of the serving transmitter of the subscriber.
- Total Path Loss (dB): The path loss calculated for the user.
- Received Power (DL) (dBm): The signal level received at the user location in the downlink.
- Azimuth: The orientation of the user’s terminal antenna in the horizontal plane. Azimuth is always considered with respect to the North. Atoll points the user antenna towards its serving base station.
- Downtilt: The orientation of the user’s terminal antenna in the vertical plane. Mechanical downtilt is positive when it is downwards and negative when upwards. Atoll points the user antenna towards its serving base sta-tion.
- Interference + Noise (DL) (dBm): The interference + noise level experienced at the user location in the down-link.
- C/(I+N) (DL) (dB): The C/(I+N) at the user location in the downlink.
- Bearer (DL): The highest LTE bearer available for the C/(I+N) level at the user location in the downlink.
- BLER (DL): The Block Error Rate read from the user terminal’s reception equipment for the C/(I+N) level at the user location in the downlink.
- Peak RLC Channel Throughput (DL) (kbps): The maximum RLC channel throughput attainable using the
- Effective RLC Channel Throughput (DL) (kbps): The effective RLC channel throughput attainable using the highest bearer available at the user location in the downlink. It is calculated from the peak RLC throughput and the BLER.
- Application Level Channel Throughput (DL) (kbps): The application level throughput is the net throughput without coding (redundancy, overhead, addressing, etc.). It is calculated from the effective RLC throughput, the throughput scaling factor of the service and the throughput offset.
- Peak RLC User Throughput (DL) (kbps): The maximum RLC user throughput attainable using the highest bearer available at the user location in the downlink.
- Effective RLC User Throughput (DL) (kbps): The effective RLC user throughput attainable using the highest bearer available at the user location in the downlink. It is calculated from the peak RLC throughput and the BLER.
- Application Level User Throughput (DL) (kbps): The application level throughput is the net throughput without coding (redundancy, overhead, addressing, etc.). It is calculated from the effective RLC throughput, the throughput scaling factor of the service and the throughput offset.
- Received Power (UL) (dBm): The signal level received at the serving transmitter from the user terminal in the uplink.
- Interference + Noise (UL) (dBm): The interference + noise level experienced at the serving transmitter of the user in the uplink.
- C/(I+N) (UL) (dB): The C/(I+N) at the serving transmitter of the user in the uplink.
- Bearer (UL): The highest LTE bearer available for the C/(I+N) level at the serving transmitter of the user in the uplink.
- BLER (UL): The Block Error Rate read from the reference cell’s reception equipment for the C/(I+N) level at the serving transmitter of the user in the uplink.
- Transmission Power (UL) (dBm): The transmission power of the user terminal after power control in the uplink.
- Number of Used Resource Blocks (UL): The number of resource blocks being used by the user in the uplink.
- Peak RLC Channel Throughput (UL) (kbps): The maximum RLC channel throughput attainable using the highest bearer available at the serving transmitter of the user in the uplink.
- Effective RLC Channel Throughput (UL) (kbps): The effective RLC channel throughput attainable using the highest bearer available at the serving transmitter of the user in the uplink. It is calculated from the peak RLC throughput and the BLER.
- Application Level Channel Throughput (UL) (kbps): The application level throughput is the net throughput without coding (redundancy, overhead, addressing, etc.). It is calculated from the effective RLC throughput, the throughput scaling factor of the service and the throughput offset.
- Peak RLC User Throughput (UL) (kbps): The maximum RLC user throughput attainable using the highest bearer available at the serving transmitter of the user in the uplink.
- Effective RLC User Throughput (UL) (kbps): The effective RLC user throughput attainable using the highest bearer available at the serving transmitter of the user in the uplink. It is calculated from the peak RLC throughput and the BLER.
- Application Level User Throughput (UL) (kbps): The application level throughput is the net throughput without coding (redundancy, overhead, addressing, etc.). It is calculated from the effective RLC throughput, the throughput scaling factor of the service and the throughput offset.
The Initial Conditions tab: The Initial Conditions tab contains the following information:
- The global transmitter parameters:
- The default cyclic prefix
- The PDCCH and PUCCH fixed overheads
- The TDD-specific parameter: Switching point periodicity - The UL power control margin
- The input parameters specified when creating the simulation:
- The maximum number of iterations
- The uplink and downlink traffic load convergence thresholds - The uplink noise rise convergence threshold
- The names of the traffic maps and subscriber lists used.
- The parameters related to the clutter classes, including the default values.
0.3.5.5 Displaying the Average Results of a Group of Simulations
After you have created a group of simulations, as explained in "Creating Simulations" on page 66, you can display the average results of the group. If you wish to display the results of a single simulation in a group, see "Displaying the Results of a Single Simulation" on page 70.
To display the averaged results of a group of simulations:
1. Click the Data tab in the Explorer window.
2. Click the Expand button ( ) to expand the LTE Parameters folder.
Notes:
• In Atoll, channel throughputs are peak RLC, effective RLC, or application level throughputs achieved at a given location using the highest LTE bearer with the entire channel resources.
• If a user is rejected, his user throughput is zero.
3. Right-click the group of simulations whose results you want to display.