FIELD: radio engineering, communication.
SUBSTANCE: invention discloses user equipment in a Radio Resource Control (RRC) connected mode, which receives from a base station a Minimisation of Drive Tests (MDT) configuration and triggers an applicability timer after receiving the MDT configuration. The user equipment in RRC idle mode logs measurements based on the MDT configuration in order to collect logged measurements while the applicability timer is active. When the applicability timer expires, the user equipment drops the MDT configuration and triggers the storage timer. When the storage timer expires, logged measurements are dropped.
EFFECT: dropping logged measurements without affecting available memory.
9 cl, 11 dwg
