FIELD: radio engineering, communication.
SUBSTANCE: mobile station UE according to the present invention includes a control unit 12 configured, upon determination based on EPC-MO-LR support included in attach accept or TAU accept received from a mobility management node MME that EPC-MO-LR is not supported in an E-UTRAN mobile communication system, to switch the E-UTRAN to a UTRAN after establishing a connection in the E-UTRAN mobile communication system, and then transmit a NAS MO-LR request to a mobile switching centre SGSN/MSC.
EFFECT: reduced delay when implementing services.
3 cl, 9 dwg
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