Patent ID: 8396042

Claim:
A control apparatus for use in wireless communications, the apparatus comprising: an antenna unit having antennas, the number of the antennas being equal to a maximum allowable number of connections in a specific frequency band; and a controller for receiving a connection request signal from each terminal attempting to connect to the control apparatus via the antenna unit, transmitting a data for each terminal connected to the control apparatus and obtaining a data signal transmitted from each terminal connected to the control apparatus, by using a multiple-input-multiple-output scheme, wherein the controller transmits the data for each terminal connected to the control apparatus by calculating a signal to be transmitted via each antenna based on a channel matrix between the antennas and the terminals connected to the control apparatus and the number and types of the terminals connected to the control apparatus via the antennas, and wherein the controller obtains the data signal transmitted from each terminal connected to the control apparatus from a received signal of each antenna according to the multiple-input-multiple-output scheme.