Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an uplink packet duplication configuration that indicates a set of configured carriers and a number of copies of an uplink packet to transmit. In some examples, the UE may receive the uplink packet duplication configuration from a base station. The UE may select a subset of the set of configured carriers based on a selection criterion and the number of copies of the uplink packet to transmit, and transmit an uplink packet transmission that includes the copy of the uplink packet on each carrier of the subset of the set of configured carriers based on the uplink packet duplication configuration.