Configuration handling for subsequent layer 1 or layer 2 triggered mobility in dual connectivity

Abstract

A first candidate secondary base station receives, from a master base station, a secondary node modification request message comprising a first identifier of a first candidate primary secondary cell group cell (PSCell), of the first candidate secondary base station, for a first layer 1 or layer 2 triggered mobility (LTM) associated with a first PSCell change to the first candidate PSCell for a wireless device, a second identifier of a second candidate PSCell for a second LTM associated with a second PSCell change to the second candidate PSCell for the wireless device, wherein the second LTM is initiated by the first candidate secondary base station, a first LTM configuration identifier indicating a first configuration of the first LTM to the first candidate PSCell, and a second LTM configuration identifier indicating a second configuration of the second LTM to the second candidate PSCell.