Patent ID: 8897120
Filing Date: 2014-11-25
Classification: H04L,H04N

Abstract:
1. A transmitting apparatus for transmitting signals in a multi-carrier system on the basis of a frame structure, said transmitting apparatus comprising: a frame former configured to form frames of said frame structure, each frame comprising at least two preamble patterns adjacent to each other in the frequency direction and at least two data patterns following the at least two preamble patterns in the time direction, wherein all data patterns following each other in the time direction have a same frequency direction structure, each of the at least two preamble patterns and the at least two data patterns comprising a plurality of frequency carriers, wherein a length of each of the at least two preamble patterns is equal to or smaller than the effective receiving bandwidth of a receiving apparatus configured to receive said signals, a pilot mapper configured to map pilot signals on frequency carriers of each of said at least two preamble patterns in a frame, each preamble pattern having a same length, a data mapper configured to map data on frequency carriers of said at least two data patterns in a frame, a transformer configured to transform said at least two preamble patterns and said at least two data patterns from the frequency domain into the time domain in order to generate a time domain transmission signal, and a transmitter configured to transmit said time domain transmission signal.