A user equipment, UE, comprising: a transceiver arranged to communicate with a source base station and a target base station , wherein the transceiver is further configured to receive measurement control signals from the source base station and to transmit measurement feedback to the source base station based on the received measurement control signals; and processing circuitry arranged to: configure the transceiver to receive from the source base station a reconfiguration message comprising reconfiguration information comprising at least one parameter indicating that physical layer and layer 2 reconfiguration and a security key update is to be avoided during handover of the UE from the source base station to the target base station, wherein the reconfiguration information is dependent on whether the source base station and the target base station are configured to communicate with the UE using a same frequency; and engage in handover from the source base station to the target base station free from physical layer and layer 2 reconfiguration and transmission of a security key to the target base station , based on the reconfiguration message ; and initiate handover from the source base station to the target base station based on reception of the reconfiguration message . a transceiver arranged to communicate with a source base station and a target base station , wherein the transceiver is further configured to receive measurement control signals from the source base station and to transmit measurement feedback to the source base station based on the received measurement control signals; and processing circuitry arranged to: configure the transceiver to receive from the source base station a reconfiguration message comprising reconfiguration information comprising at least one parameter indicating that physical layer and layer 2 reconfiguration and a security key update is to be avoided during handover of the UE from the source base station to the target base station, wherein the reconfiguration information is dependent on whether the source base station and the target base station are configured to communicate with the UE using a same frequency; and engage in handover from the source base station to the target base station free from physical layer and layer 2 reconfiguration and transmission of a security key to the target base station , based on the reconfiguration message ; and initiate handover from the source base station to the target base station based on reception of the reconfiguration message . configure the transceiver to receive from the source base station a reconfiguration message comprising reconfiguration information comprising at least one parameter indicating that physical layer and layer 2 reconfiguration and a security key update is to be avoided during handover of the UE from the source base station to the target base station, wherein the reconfiguration information is dependent on whether the source base station and the target base station are configured to communicate with the UE using a same frequency; and engage in handover from the source base station to the target base station free from physical layer and layer 2 reconfiguration and transmission of a security key to the target base station , based on the reconfiguration message ; and initiate handover from the source base station to the target base station based on reception of the reconfiguration message . <EOS>