User equipment and base station apparatus

Abstract

A user equipment includes a control unit configured to determine, based on a difference between a first timing advance value of a first cell group in dual connectivity and a second timing advance value of a second cell group in the dual connectivity, a transmission timing for the first cell group and a transmission timing for the second cell group, and a transmitting unit configured to perform transmission in the first cell group based on the determined transmission timing for the first cell group, and perform transmission in the second cell group based on the determined transmission timing for the second cell group.

Dependencies are inferred from the claim text.