Packet Duplication Activation Signaling

A method comprising:

• receiving, by a base station distributed unit from a base station central unit, information elements comprising:
• at least one bearer configuration information element indicating that packet data convergence protocol (PDCP) packet duplication is configured for at least one first bearer of a wireless device;
• and
• at least one information element indicating activation of the PDCP packet duplication of the at least one first bearer;
• transmitting, by the base station distributed unit to the wireless device, a radio resource control message comprising at least one configuration parameter indicating that the PDCP packet duplication is configured for the at least one first bearer;
• transmitting, by the base station distributed unit to the wireless device and in response to the at least one information element indicating the activation of the PDCP packet duplication, a medium access control control element indicating the activation of the PDCP packet duplication of the at least one first bearer;
• and
• receiving, by the base station distributed unit and based on the medium access control control element:
• PDCP packets of the at least one first bearer;
• and
• duplicated PDCP packets of the at least one first bearer.