APPARATUS FOR TRANSMITTING AND RECEIVING A SIGNAL AND METHOD OF TRANSMITTING AND RECEIVING A SIGNAL

摘要

The disclosure relates to a method for transmitting and receiving a signal and an apparatus for transmitting and receiving a signal with pilot distances changed for enhanced efficiency. The disclosure suggests changing of pilot distances for coincidence between the preamble pilot positions for preamble data symbols and the scattered pilot positions for data symbols, and for reducing overhead by delaying the pilot distance.