1. A receiving apparatus for a mobile communications system, comprising: a first receiving section configured to demodulate received signals of a first modulation type, the first receiving section comprising a frequency offset estimation unit; and a second receiving section configured to demodulate received signals of a second modulation type, the second receiving section comprising a frequency correction unit configured to correct the frequency offset; wherein the first receiving section is connected to the second receiving section configured to transmit the estimated frequency offset from the first receiving section to the second receiving; and wherein the first modulation type comprises a two-value frequency modulation method, and the second modulation type comprises a modulation method having an M-value of M≧4.