A device, comprising: a setting unit configured to variably set at least one of an interval between subcarriers and a time length of a subsymbol included in a unit resource constituted by one or more subcarriers or one or more subsymbols and to which a target signal is allocated; and a transmission processing unit configured to perform filtering for every predetermined number of subcarriers, wherein the transmission processing unit is configured to apply a filter in which a filter coefficient with a sharp band limitation characteristic is set when the interval between subcarriers is less than a threshold and to apply a filter in which a filter coefficient with a gentle band limitation characteristic is set when the interval between subcarriers is equal to or more than the threshold, wherein the filter coefficient with the sharp band limitation is a filter coefficient corresponding to a raised-cosine filter or has a smaller roll-off factor, and wherein the filter coefficient with the gentle band limitation is a filter coefficient corresponding to a root-raised-cosine filter or has a characteristic of having larger roll-off factor, wherein the setting unit is configured to i) set the time lengths of the subsymbols included in the unit resource on the basis of a combination of parameters usable in the unit resource and intervals between the subcarriers and time lengths of the subsymbols corresponding to a reception device of the target signal allocated to said unit resource and/or a type of reception device of the target signal allocated to said unit resource and ii) set the intervals between the subcarriers included in the unit resource on the basis of a combination of parameters usable in the unit resource and intervals between the subcarriers and time lengths of the subsymbols corresponding to a type of information carried by the target signal allocated to said unit resource and/or a type of application related to the information carried by the target signal allocated to said unit resource. a setting unit configured to variably set at least one of an interval between subcarriers and a time length of a subsymbol included in a unit resource constituted by one or more subcarriers or one or more subsymbols and to which a target signal is allocated; and a transmission processing unit configured to perform filtering for every predetermined number of subcarriers, wherein the transmission processing unit is configured to apply a filter in which a filter coefficient with a sharp band limitation characteristic is set when the interval between subcarriers is less than a threshold and to apply a filter in which a filter coefficient with a gentle band limitation characteristic is set when the interval between subcarriers is equal to or more than the threshold, wherein the filter coefficient with the sharp band limitation is a filter coefficient corresponding to a raised-cosine filter or has a smaller roll-off factor, and wherein the filter coefficient with the gentle band limitation is a filter coefficient corresponding to a root-raised-cosine filter or has a characteristic of having larger roll-off factor, wherein the setting unit is configured to i) set the time lengths of the subsymbols included in the unit resource on the basis of a combination of parameters usable in the unit resource and intervals between the subcarriers and time lengths of the subsymbols corresponding to a reception device of the target signal allocated to said unit resource and/or a type of reception device of the target signal allocated to said unit resource and ii) set the intervals between the subcarriers included in the unit resource on the basis of a combination of parameters usable in the unit resource and intervals between the subcarriers and time lengths of the subsymbols corresponding to a type of information carried by the target signal allocated to said unit resource and/or a type of application related to the information carried by the target signal allocated to said unit resource. i) set the time lengths of the subsymbols included in the unit resource on the basis of a combination of parameters usable in the unit resource and intervals between the subcarriers and time lengths of the subsymbols corresponding to a reception device of the target signal allocated to said unit resource and/or a type of reception device of the target signal allocated to said unit resource and ii) set the intervals between the subcarriers included in the unit resource on the basis of a combination of parameters usable in the unit resource and intervals between the subcarriers and time lengths of the subsymbols corresponding to a type of information carried by the target signal allocated to said unit resource and/or a type of application related to the information carried by the target signal allocated to said unit resource.