Two conditions are counted as outage.
- A mobile station, which is not able to transmit the required amount of power to meet the received Eb/N0_target due to maximum power limitations. This mobile is counted as part of the specified traffic load N_UL. However, the mobile is assumed to be transmitting no power.
- In the case of Act_MS < N_UL, no more mobile stations can be added to the set of active users because of noise rise limits. In this event, N_UL - Act_MS outages are counted.
For each event, the number of optimised users is being re-calculated