RADIO COMMUNICATION SYSTEM, BASE STATION, MOBILE STATION, COMMUNICATION CONTROL METHOD, AND COMPUTER READABLE MEDIUM

摘要

A first base station (1) is configured to send, to a second base station (2), first configuration information that is necessary to establish a data bearer and a data radio bearer in the second base station (2) for a C/U-plane split scenario (S105). Further, the first base station (1) is configured to keep the first configuration information in the first base station (1) even after the data bearer and the data radio bearer are established in the second base station (2) (S109). It is thus, for example, possible to contribute to a reduction in a path switch delay when a UE moves between cells in the C/U-plane split scenario.

主权项

1. A radio communication system comprising:
a first base station that operates a first cell; a second base station that operates a second cell; a core network comprising a mobility management apparatus and a data transfer apparatus; and a mobile station, wherein the first base station is configured to establish a first signaling bearer with the mobility management apparatus, establish a second signaling bearer with the second base station, and establish a signaling radio bearer with the mobile station in the first cell, the second base station is configured to establish the second signaling bearer with the first base station, establish a data bearer with the data transfer apparatus, and establish a data radio bearer with the mobile station in the second cell, the first base station is further configured to send, to the second base station via the second signaling bearer, first configuration information that is necessary to establish the data bearer and the data radio bearer in the second base station, and the first base station is further configured to keep the first configuration information in the first base station even after the data bearer and the data radio bearer are established in the second base station.