A radio communications system, comprising: a plurality of terminal communication units (105-1 to 105-8), each having one antenna, adapted to conduct radio communication with a plurality of terminals (102-1 to 102-6); at least one baseband modem (103-1, 103-2) adapted to generate and decrypt data signals, and a switch unit for connecting the baseband modem to the plurality of terminal communication units, wherein the baseband modem is adapted to divide a radio frequency band used for the radio communication into two or more subbands, to generate and decrypt the data signals specific to the respective divided subbands, and to allocate the data signals specific to the respective subbands to the terminal communication units, and wherein the switch unit is adapted to receive the data signals specific to the respective subbands from the baseband modem, and to allocate paths for transmitting the data signals specific to the respective subbands to subsets of the plurality of the terminal communication units such as to configure, by the respective antennas of the subsets of terminal communication units, cells (101-1, 101-2) with different cell boundaries for the respective subbands, wherein the terminal communication units are adapted to receive the data signals specific to the respective subbands generated by the baseband modem via the paths allocated by the switch unit and to transmit them to the terminals. a plurality of terminal communication units (105-1 to 105-8), each having one antenna, adapted to conduct radio communication with a plurality of terminals (102-1 to 102-6); at least one baseband modem (103-1, 103-2) adapted to generate and decrypt data signals, and a switch unit for connecting the baseband modem to the plurality of terminal communication units, wherein the baseband modem is adapted to divide a radio frequency band used for the radio communication into two or more subbands, to generate and decrypt the data signals specific to the respective divided subbands, and to allocate the data signals specific to the respective subbands to the terminal communication units, and to divide a radio frequency band used for the radio communication into two or more subbands, to generate and decrypt the data signals specific to the respective divided subbands, and to allocate the data signals specific to the respective subbands to the terminal communication units, and wherein the switch unit is adapted to receive the data signals specific to the respective subbands from the baseband modem, and to allocate paths for transmitting the data signals specific to the respective subbands to subsets of the plurality of the terminal communication units such as to configure, by the respective antennas of the subsets of terminal communication units, cells (101-1, 101-2) with different cell boundaries for the respective subbands, to receive the data signals specific to the respective subbands from the baseband modem, and to allocate paths for transmitting the data signals specific to the respective subbands to subsets of the plurality of the terminal communication units such as to configure, by the respective antennas of the subsets of terminal communication units, cells (101-1, 101-2) with different cell boundaries for the respective subbands, wherein the terminal communication units are adapted to receive the data signals specific to the respective subbands generated by the baseband modem via the paths allocated by the switch unit and to transmit them to the terminals.