Radio communication system

Abstract

Provided is a radio communication system capable of implementing a state transition related to an intermediate transition between a connected state and an idle state. An aspect of the present invention relates to a radio communication system, including: a user equipment, wherein the user equipment includes a state management unit that manages a communication state of the user equipment, and a state transition unit that causes the communication state of the user equipment to transition, and when a sustenance message for causing the user equipment to transition from a connected state to a sustained state is received from a first base station, the state transition unit causes the user equipment to transition from the connected state to the sustained state, and the state management unit extracts a context identifier specifying radio parameter information for radio communication between the user equipment and the first base station and a base station-based location registration area configured with one or more cells including a cell of the first base station from the sustenance message and retains the radio parameter information, the context identifier, and the base station-based location registration area.

Dependencies are inferred from the claim text.