Patent ID: 11876737
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A transmission/reception method for an OFDM-based broadcasting system, comprising:
generating multiple transmission frames from multiple pieces of transmission data;
generating an extended frame by combining the multiple transmission frames so that the multiple transmission frames are adjacent to each other based on a frequency;
modulating the extended frame and then generating a modulated signal; and
performing frequency up-conversion on the modulated signal and then generating a transmission signal,
wherein generating each of the multiple transmission frames comprises:
receiving a corresponding one of the multiple pieces of transmission data;
encoding the received transmission data and then generating encoded data; and
framing and interleaving the encoded data and then generating a transmission frame, and

wherein generating the multiple transmission frames comprises:
generating an existing channel transmission frame;
generating a high channel transmission frame; and
generating a low channel transmission frame to be paired with the high channel transmission frame, and

wherein generating the modulated signal is configured to add subcarriers of the modulated signal to a guard band of the existing channel transmission frame.