user equipment on a mobile communication system, method for operating user equipment on a mobile communication system and radio base station

摘要

this disclosure relates to user equipment in a mobile communication system. the eu comprises a set of processing circuits which determines whether the eu is located in a first radio access network notification area, first rna, is moving to a second radio access network notification area, second rna, different from the first rna. the eu is in an idle state outside an idle state, a connected state and the idle state that the user equipment can be in. the eu further comprises a transmitter, which transmits identification information on the first rna to a second radio base station of the second rna, when determining that the eu is moving to the second rna. the eu further comprises a receiver which receives, from the second radio base station, context information related to the eu usable by the eu to exchange uplink and downlink data with the second radio base station.