Transmission/Reception Coordination for Over-the-Air Communication Between Uncoordinated Base Stations of an Orthogonal Frequency-Division Multiplexing Based Cellular Radio Network

A non-transitory computer readable memory storing a computer program, the computer program comprising code to:

• divide a subframe of a radio resource dedicated for over-the-air communication between uncoordinated base stations of an orthogonal frequency-division multiplexing based cellular radio network into subchannels;
• obtain, at a mobility management unit of the cellular radio network, deployment information of the uncoordinated base stations;
• determine transmission allocation information at the mobility management unit based on the obtained deployment information, the transmission allocation information comprising for each of the uncoordinated base stations their respective at least one symbol in said subframe of said dedicated radio resource and their respective at least one subchannel for use in their respective over-the-air communication transmissions, such that simultaneous over-the-air communication transmissions between an uncoordinated base station and its target uncoordinated base station are prevented;
• and
• transmit to the uncoordinated base stations their respective determined transmission allocation information.

An apparatus, comprising:

• a divider configured to divide a subframe of a radio resource dedicated for over-the-air communication between uncoordinated base stations of an orthogonal frequency-division multiplexing based cellular radio network into subchannels;
• a deployment information unit configured to obtain deployment information of the uncoordinated base stations;
• a processing unit configured to determine transmission allocation information based on the obtained deployment information, the transmission allocation information comprising for each of the uncoordinated base stations their respective at least one symbol in said subframe of said dedicated radio resource and their respective at least one subchannel for use in their respective over-the-air communication transmissions, such that simultaneous over-the-air communication transmissions between an uncoordinated base station and its target uncoordinated base station are prevented;
• and
• a transmitter configured to transmit to the uncoordinated base stations their respective determined transmission allocation information.