An apparatus and a method for transmitting multimedia transport stream
hierarchically and recovering the multimedia transmission stream are
disclosed. The apparatus includes: an input matching unit for dividing
the multimedia data transport stream into packets; a sequence number
inserting unit for inserting a sequence number to the packet; an error
check code (ECC) inserting unit for inserting an ECC to the sequence
number inputted packet, to thereby generate a user packet; a layer
information storing unit for storing layer information for the user
packet; a layer dividing unit for dividing the user packet; a layer
storing unit for storing the divided user packet in each layer; and a
hierarchical framing and transmitting unit for generating a hierarchical
transport frame by combining a predetermined number of the user packets
with the layer information, and transmitting the hierarchical frame in a
different transmission method for a different layer.