Patent ID: 8891556

Claim:
An apparatus for generating a signal for transmission in a single-carrier communication system, comprising: a reference signal inserter, which multiplexes data symbols with reference signal symbols in time domain to form a plurality of symbol blocks as the signal for transmission, wherein the plurality of symbol blocks include symbol blocks of a first type and symbol blocks of a second type, wherein each of the symbol blocks of the first type includes only data symbols, and wherein each of the symbol blocks of the second type includes both data symbols and reference signal symbols; a Discrete Fourier Transform unit which performs Discrete Fourier Transform on each of the plurality of symbol blocks to produce a respective one of a plurality of first frequency-domain sequences; a sub-carrier mapping unit which maps elements of each of the first frequency-domain sequences onto a set of sub-carriers to produce a respective one of a plurality of second frequency-domain sequences; an Inverse Fast Fourier Transform unit which performs Inverse Fast Fourier Transform on each of the second frequency-domain sequences to produce a respective one of a plurality of second symbol blocks; and, a cyclic prefix inserter which inserts a cyclic prefix for each of the plurality of second symbol blocks.