A1 abstract a method for transmitting a signal according to the present invention comprises spreading a control channel data through a pn code and generating a diffused control channel data time division multiplexing the diffused control channel data and a service channel data and generating a multiplexed signal and inverse fourier transforming the multiplexed signal and generating an inverse fourier transformed signal accordingly in multi hop communication frequency efficiency is improved by not using different rf frequencies between a control channel and service channel and applying a control channel and service channel through the tdm method and the channel efficiency is improved by wave channel switching application_number US 1379208 A description in the following detailed description only certain exemplary embodiments of the present invention have been shown and described simply by way of illustration as those skilled in the art would realize the described embodiments may be modified in various ways all without departing from the spirit or scope of the present invention accordingly the drawings and description are to be regarded as illustrative in nature and not restrictive in addition unless explicitly described to the contrary the word u201c comprise u201d and variations such as u201c comprises u201d or u201c comprising u201d will be understood to imply the inclusion of stated elements but not the exclusion of any other elements as used in this application a mobile station.