Patent ID: 8897275

Claim:
A method comprising: compensating for interference effects within a telecommunication network comprising at least a first base station and a second base station, which serve in a cooperative manner a first user equipment and a second user equipment by using time division duplex, wherein the telecommunication network is in an operational state, in which the first base station is in a downlink mode and the second base station is in an uplink mode, by: determining at least one of a first channel state information between the first base station and the second base station and a second channel state information between the first user equipment and the second user equipment; encoding data signals based on the first channel state information and/or on the second channel state information; transmitting the encoded data signals by the first base station and/or by the second base station; and transmitting the second channel state information to the first base station and/or to the second base station, wherein the second channel state information is only transmitted to the first base station and/or to the second base station if a data retransmission is required; wherein the data retransmission is carried out with a first retransmission data unit, which is transmitted during a first phase of the telecommunication network, during which both the first base station and the second base station are in a downlink mode, and/or with a second retransmission data unit, which is transmitted during a second phase of the telecommunication network, during which the first base station is still in the downlink mode and the second base station is already in an uplink mode.