Methods and Devices for Determination of Beamforming Information

A radio equipment (RE) of an access node, the RE configured for obtaining information for determining beamforming weights for terminal devices, the RE having an interface to a radio equipment controller (REC) of the access node and comprising processing circuitry, wherein the processing circuitry is configured to cause the RE to:

• obtain beamforming information per direction from the REC over the interface;
• transform the beamforming information per direction to beamforming information per antenna, the beamforming information per antenna representing the beamforming weights;
• and
• apply the beamforming weights.

A radio equipment controller (REC) of an access node, the REC configured for providing information for determining beamforming weights for terminal devices, the REC having an interface to a radio equipment (RE) of the access node and comprising processing circuitry, wherein the processing circuitry is configured to cause the REC to:

• obtain beamforming information per antenna, the beamforming information per antenna representing the beamforming weights;
• transform the beamforming information per antenna to beamforming information per direction;
• and
• provide the beamforming information per direction to the RE over the interface.

A radio equipment (RE) of an access node, the RE configured for providing information for determining beamforming weights for terminal devices, the RE having an interface to a radio equipment controller (REC) of the access node and comprising processing circuitry, wherein the processing circuitry is configured to cause the RE to:

• obtain beamforming information per antenna from at least one of the terminal devices, the beamforming information per antenna representing the beamforming weights;
• transform the beamforming information per antenna to beamforming information per direction;
• and
• provide the beamforming information per direction to the REC over the interface.

A radio equipment controller (REC) of an access node, the REC configured for obtaining information for determining beamforming weights for terminal devices, the REC having an interface to a radio equipment (RE) of the access node and comprising processing circuitry, wherein the processing circuitry is configured to cause the REC to:

• obtain beamforming information per direction from the RE over the interface;
• determine the beamforming weights per direction based on the beamforming information per direction;
• and
• provide the beamforming weights per direction to the RE over the interface.