Methods, systems, and devices for
wireless communication are described. An encoding device (e.g., a
user equipment (UE) or a
base station) may divide one or more data units (e.g., packet data convergence protocol (
PDCP) protocol data units (PDUs)) into sets of data blocks. The encoding device may
encode the set of data blocks using the
fountain code, and may generate a set of data units (e.g.,
Radio Link Control (RLC) PDUs) based on encoding the set of data blocks using the
fountain code. The UE may assign a first subset of the set of data units to a first carrier and a second subset of the set of data units to a second carrier, and may transmit the first subset on the first carrier and the second subset on the second carrier.