Patent ID: 8861548

Claim:
A transmitter in a cable network, the transmitter comprising: a media access control (MAC) and upper layer data generation unit configured to generate upper layer data including multiplexed data of a plurality of subscriber terminals; a segmentation unit, coupled to the MAC and upper layer data generation unit, and configured to divide the upper layer data into a plurality of segment data; a channel coding unit, coupled to the segmentation unit, and configured to perform channel coding on each segment data; a subscriber information extraction and subscriber identification signal generation unit, coupled to the segmentation unit, and configured to extract information on at least one subscriber terminal included in each segment data to generate subscriber identification signals; a subscriber identification signal insertion unit, coupled to the channel coding unit and the subscriber information extraction and subscriber identification signal generation unit, and configured to insert the subscriber identification signals into each channel-coded segment data; and a modulation and radio frequency (RF) unit, coupled to the subscriber identification signal insertion unit, and configured to modulate and transmit each segment data into which the subscriber identification signals are inserted.