Method and apparatus for transmitting/receiving multiplexed packet stream over single transmission channel

The present invention relates to a multiplexed packet stream in a method and apparatus for transmitting and receiving via a single transmission channel. To the main packet stream is generated by multiplexing a plurality of sub-streams according to one embodiment of the invention, the transmission using a single transmission channel, the method comprising: packetizing a plurality of sub-stream generation sub-stream packet, As the sub-stream-packet the generated sequence, the sub-stream-packet sub-stream the step of assigning the sequence information, based on the order in which the sub-stream packets are input, the method comprising: allocating a main packet stream sequence information to the sub-stream packet and input and a step of generating the main packet stream by multiplexing the sub-stream packet. According to the present invention to transmit and receive multiple packet streams over a single transmission channel, there is an advantage that can be realized a differentiated error recovery for each sub-streams included in the multi-stream packet.