Abstract:
Disclosed herein are a method for transmitting and receiving a broadcast signal in which bandwidth scalability using multiples of a basic bandwidth is applied and an apparatus for the same. The method for transmitting a broadcast signal includes generating a multiplexed signal by multiplexing a first broadcast service signal for a first broadcast service and a second broadcast service signal for a second broadcast service, which differs from the first broadcast service; modulating the multiplexed signal in order for the first broadcast service and the second broadcast service to share a compound band, the bandwidth of which is a multiple of a basic bandwidth but is smaller than an entire bandwidth, thereby generating a signal to be transmitted; and transmitting the generated signal using the compound band.
Abstract:
An apparatus and method for multiplexing signals using layered division multiplexing are disclosed. A signal multiplexing apparatus according to an embodiment of the present invention includes a combiner configured to combine a core layer signal and an enhanced layer signal at different power levels, and a time interleaver configured to perform interleaving applied to both the core layer signal and the enhanced layer signal.
Abstract:
Disclosed is an apparatus and method for providing a broadcasting service in a single frequency broadcasting network, and a system thereof. The apparatus for receiving broadcasting signals includes an RF receiver configured to receive an RF broadcasting signal having identification information to identify a broadcasting signal transmitter and down-convert the received RF broadcasting signal; a reception characteristic measurer configured to measure reception characteristics of the RF broadcasting signal based on the identification information and generate reception characteristic information; and a reception characteristic transmitter configured to transmit the reception characteristic information to a broadcasting system.
Abstract:
Provided is an apparatus and method for analyzing identification (ID) signals by converting radio frequency (RF) signals which are transmitted with an ID signal added thereto by a transmitting part, e.g., a plurality of transmitters or repeaters, into signals of a desired band; creating ID signals that are identical to the ID signals added to the RF signals; calculating correlation values between the converted signals and the created ID signals based on partial correlation; and extracting channel profile of multi-path signals caused by a channel between the transmitting part and the ID signal analyzing apparatus from the correlation value. The technology of the present research is applied to broadcasting and communication.