Patent ID: 9344922
Filing Date: 2016-05-17
CPC Classification: H04W

Claim Text:
1. A radio communication system comprising: a user equipment; plural base stations; and a gateway device, the plural base stations including: a first base station that executes, via a control-plane path, radio resource control of the user equipment; and a second base station that does not execute radio resource control of the user equipment, the first base station comprising: a measurement report message receiver configured to receive a measurement report message regarding radio waves transmitted from the base stations, the message being transmitted from the user equipment; a determiner configured to determine, based on the measurement report message, whether to establish a third user-plane path between the first base station and the second base station in a case in which a control-plane path and a first user-plane path are established between the user equipment and the first base station, and in which a second user-plane path is established between the first base station and the gateway device; a user-plane path controller configured to, when the determiner determines to establish the third user-plane path, establish the third user-plane path between the first base station and the second base station, and to associate the established third user-plane path with the second user-plane path; and a radio connection configurator configured to transmit, to the user equipment, a radio connection reconfiguration message instructing the user equipment to establish a fourth user-plane path between the user equipment and the second base station, and the second base station comprising: a user-plane path processor configured to associate the fourth user-plane path established by the user equipment with the third user-plane path.