A method and an apparatus for transmitting and receiving packets in a broadcasting system are provided. The present disclosure allocates a padding size field by using padding octets, and thus can increase transmission efficiency. Also, the present disclosure does not restrict the number of padding octets while maintaining compatibility with existing disclosures, and thus can carry out as much padding as desired and as necessary. In addition, the present disclosure variably allocates the padding size field depending on the number P of padding octets, and thus can increase header efficiency. Furthermore, since the number of padded octets in a header is immediately known, the size of an actual payload is known in advance, and thus rapid transmission is possible.

The disclosure relates to a coding module for an Ethernet transceiver. The coding module may include circuitry configured to: receive data-signaling representative of one or more data words; encode the data-signaling into one or more DC-balanced words each having a DC-balanced-word-length; provide a prepended-word for a first transmission, where a length of the prepended-word is at least as long as the DC-balanced-word-length; and provide the one or more DC-balanced words for a second transmission, where the second transmission is subsequent to the first transmission. The coding module may include circuitry configured to: receive a prepended-word and provide a logic-high signal to an Energy Detect terminal; receive one or more DC-balanced words each having a DC-balanced-word-length; remove a DC-balanced coding from the one or more DC-balanced words to generate data signaling representative of one or more data words; and provide the data signaling to an output terminal.