A method of arranging, in a mobile communication network , transmission of data ( S* INFO i,n ,S* CTRL n ) between user equipments ( UE i ) and at least one base station (BS) comprising a central unit (CU) and at least one remote unit ( RU j ) associated therewith, wherein said data ( S* INFO i,n ,S* CTRL n ) comprise information data ( S* INFO i , n ) and control data ( S* CTRL n ) from the central unit (CU) to the at least one remote unit ( RU j ), or from the at least one remote unit ( RU j ) to the central unit (CU), the method comprising: allocating , among a plurality of available radio resources, radio resources for said data ( S* INFO i,n ,S* CTRL n ) to/from the at least one remote unit ( RU j ) thereby obtaining allocated radio resources (P PRB p ) and non-allocated radio resources for said data ( S* INFO i,n ,S* CTRL n ) to/from the at least one remote unit ( RU j ), grouping the allocated radio resources (P PRB p ) into at least one allocated radio resources group ( AG g,n ) each one comprising at least one radio resource (P PRB p ) allocated for data ( S* INFO i,n ,S* CTRL n ) to/from a respective remote unit ( RU j ), the non-allocated radio resources being not included in said respective at least one allocated radio resource group, including in each allocated radio resources group ( AG g,n ) association data ( A SS D ) indicative of an association of the at least one allocated radio resource (P PRB p ) of that allocated radio resources group ( AG g,n ) with the respective remote unit ( RU j ), including in each allocated radio resources group ( AG g,n ) allocation data ( A LL D ) indicative of the allocated radio resources ( P PRB p ), among said at least one allocated radio resource ( P PRB p ), that have been allocated at least for the information data ( S* INFO i,n ), and transmitting said at least one allocated radio resources group ( AG g,n ) in the frequency-domain between the central unit (CU) and the respective at least one remote unit ( RU j ), the non-allocated radio resources being not transmitted thereto. allocating , among a plurality of available radio resources, radio resources for said data ( S* INFO i,n ,S* CTRL n ) to/from the at least one remote unit ( RU j ) thereby obtaining allocated radio resources (P PRB p ) and non-allocated radio resources for said data ( S* INFO i,n ,S* CTRL n ) to/from the at least one remote unit ( RU j ), grouping the allocated radio resources (P PRB p ) into at least one allocated radio resources group ( AG g,n ) each one comprising at least one radio resource (P PRB p ) allocated for data ( S* INFO i,n ,S* CTRL n ) to/from a respective remote unit ( RU j ), the non-allocated radio resources being not included in said respective at least one allocated radio resource group, including in each allocated radio resources group ( AG g,n ) association data ( A SS D ) indicative of an association of the at least one allocated radio resource (P PRB p ) of that allocated radio resources group ( AG g,n ) with the respective remote unit ( RU j ), including in each allocated radio resources group ( AG g,n ) allocation data ( A LL D ) indicative of the allocated radio resources ( P PRB p ), among said at least one allocated radio resource ( P PRB p ), that have been allocated at least for the information data ( S* INFO i,n ), and transmitting said at least one allocated radio resources group ( AG g,n ) in the frequency-domain between the central unit (CU) and the respective at least one remote unit ( RU j ), the non-allocated radio resources being not transmitted thereto. <EOS>