Radio terminal and base station

Abstract

A base station in a system supporting WWAN-WLAN aggregation communication in which a radio terminal performs communication using WWAN communication and WLAN communication simultaneously. The base station includes a controller configured to acquire capability information indicating a function of the radio terminal, wherein a first function and a second function are defined. The first function splits a bearer of the radio terminal in a PDCP layer of the WWAN communication, and uses the WWAN communication and the WLAN communication for radio communication of the bearer. The second function uses only the WLAN communication for the radio communication of the bearer without splitting the bearer going through the PDCP layer. The controller is configured to acquire capability information of the second function as information different from capability information of the first function.

Dependencies are inferred from the claim text.