determination of the real Tracking Area when dynamic TA lists or smart TA techniques are applied

摘要

CONTEXT: operator has configured the mobile network to apply one of: "dynamic Tracking Area (TA) List" or "smart paging" for more efficient paging; PROBLEM: the "real" size of the TA, i. e., the number of cells over which a S1AP-paging is broadcasted on average, becomes difficult to calculate in real time; SOLUTION: obtain average number of paging records per cell and divide it by average number of RRC-Connection-Setup (for terminated calls) per cell; the result is proportional to the real TA size; the obtained value is proposed as a new Key Performance Indicator (KPI).