System and method for data transmission between a server unit and a remote unit in a communication network

A method of transmitting data from a baseband unit to a remote unit in a communication network implementing a MIMO wireless communication, the baseband unit being configured to receive data from a backhaul transport network and perform baseband processing, a data signal derived from the processed data being transmitted to the remote unit over a number of MIMO layers, through a fronthaul link, the communication network comprising a physical layer, the data signal transmitted to the remote unit comprising physical user data and physical control data, wherein the method further comprises a step of selecting at least one MIMO layer, and mapping at least a part of the control data to said at least one selected MIMO layers, the method comprising sending a copy of the physical user data on each MIMO layer, and the control data on the selected MIMO layers mapped thereto.

A computer program product embodied on a non-transitory computer-readable medium, said computer-readable medium containing computer program code which, when executed by one or more processors, causes the one or more processors to

• select at least one MIMO layer in a communication network implementing MIMO wireless communication, wherein the communication network includes a baseband unit and a remote unit wherein the baseband unit is configured to receive data from a backhaul transport network and perform baseband processing, a data signal derived from the processed data being transmitted to the remote unit over a number of MIMO layers, through a fronthaul link, the communication network comprising a physical layer, the data signal transmitted to the remote unit comprising physical user data and physical control data, the program code being further configured to cause the one or more processors to map at least a part of the control data to said at least one selected MIMO layers;
• and
• send a copy of the physical user data on each MIMO layer, and the control data on the selected MIMO layers mapped thereto.