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Downlink Cell Aggregate and Cell Edge User Throughput Criteria in LTE KPI

DL Cell Aggregate Throughput

The DL Cell Aggregate throughput (Effective RLC Aggregate Throughput) is the sum of the throughputs to all the users in the cell at an instant in time. This is to be measured following Monte Carlo simulations only.

Design KPI for DL Cell Aggregate Throughput:

10MHz Channel Bandwidth: 13.4 Mbps per cell

5MHz Channel Bandwidth: 6.7 Mbps per cell

A minimum of 90% of the cells in the LTE design reference area (Cluster or Polygon) should have the DL Cell Aggregate Throughput (Effective RLC Aggregate Throughput) exceeding the minimum design KPI values specified above.

No cells should have Aggregate DL Throughput (Effective RLC Aggregate Throughput) less than 50% of this KPI target.

DL Cell Edge User Throughput

The DL Cell Edge User Throughput (Effective RLC Aggregate Throughput) is established as the minimum throughput for users at the cell edge of the network at 50% loading. This is to be measured following Monte Carlo simulations only.

Design KPI for DL Cell Edge User Throughput:

10MHz Channel Bandwidth: 1000 kbps per user

5MHz Channel Bandwidth: 500 kbps per user

A minimum of 90% of all users in the LTE design reference area should have the DL Cell Edge User Throughput (Effective RLC Aggregate Throughput) exceeding the minimum design KPI values specified above.

No more than 2% of the users should have a DL Cell Edge User Throughput (Effective RLC Aggregate Throughput) less than 50% of this KPI target.

All the statistics for the LTE designs must be generated on a cluster by cluster or super cluster basis.

In addition to the quantitative evaluation of the LTE design using the KPIs stated above, a qualitative evaluation of the design will also be carried out as outlined in the design evaluation.The exit criteria of a design are met when both the quantitative (KPIs) and qualitative evaluation of the designs are successfully completed.

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