Abstract: An approach for bandwidth-efficient transmission of signals is provided, e.g. as an apparatus, as a method or as a computer program. According to an example embodiment, the approach comprising storing, in one or more data buffers, information descriptive of data transmitted from respective one or more data sources to a destination, identifying reference data in said one or more data buffers on basis of data to be transmitted by an apparatus and on basis of information stored in said one or more data buffers, determining residual data descriptive of the data to be transmitted by the apparatus in relation to the said reference data, and transmitting the residual data to the destination.

Abstract: A method includes operating a transmitter connected with nt transmit antennas serving K users having nr receive antennas each; and scheduling which users are to be simultaneously served in a same time-frequency-code slot. A particular user pairing configuration is denoted by ? within a set of all configurations ?, and scheduling includes expressing mutual information as an additive objective function and maximizing the additive objective function over a particular choice of ???.

Abstract: A method includes operating a receiver connected with nr receive antennas to receive uplink signals from K users having nt transmit antennas each; and scheduling which users are to transmit in a same time-frequency-code slot. A particular user pairing configuration is denoted by ? within a set of all configurations ?, and scheduling includes expressing mutual information as an additive objective function and maximizing the additive objective function over a particular choice of ???.

Abstract: The disclosure relates to resource allocation. In accordance with the disclosed method first information regarding a first direction of a duplex communication link and second information regarding a second direction of the duplex communication link is provided for a node. The first information and the second information are processed, and channel resources are allocated for the first direction and the second direction of the duplex communication link based at least partially on said processing.

Abstract: A method includes operating a transmitter connected with nt transmit antennas serving K users having nr receive antennas each; and scheduling which users are to be simultaneously served in a same time-frequency-code slot. A particular user pairing configuration is denoted by ? within a set of all configurations ?, and scheduling includes expressing mutual information as an additive objective function and maximizing the additive objective function over a particular choice of ???.

Abstract: A method includes operating a receiver connected with nr receive antennas to receive uplink signals from K users having nt transmit antennas each; and scheduling which users are to transmit in a same time-frequency-code slot. A particular user pairing configuration is denoted by ? within a set of all configurations ?, and scheduling includes expressing mutual information as an additive objective function and maximizing the additive objective function over a particular choice of ???.