CSI Reporting on Protocol Layer 2

A method for receiving CSI reporting on protocol layer 2, the method being performed by an access network node, wherein the access network node serves a wireless device on a serving beam, the method comprising:

• configuring the wireless device with event conditions as to when the wireless device is to provide the CSI reporting to the access network node and with reporting configuration as to how the wireless device is to provide the CSI reporting to the access network node;
• transmitting reference signals in candidate beams;
• and
• receiving the CSI reporting from the wireless device as a protocol layer 2 CSI report and in accordance with the reporting configuration.

A wireless device for CSI reporting on protocol layer 2, the wireless device being configured to be served by an access network node on a serving beam, wherein the wireless device is configured with event conditions as to when to provide the CSI reporting to the access network node and with reporting configuration as to how to provide the CSI reporting to the access network node, the wireless device comprising processing circuitry, the processing circuitry being configured to cause the wireless device to:

• obtain CSI values by monitoring candidate beams in which reference signals are transmitted by the access network node;
• determine, based on comparing the CSI values to the event conditions, that at least one of the event conditions for CSI reporting is fulfilled;
• and
• send the CSI reporting to the access network node as a protocol layer 2 CSI report and in accordance with the reporting configuration.

An access network node for receiving CSI reporting on protocol layer 2, the access network node being configured to serve a wireless device on a serving beam, the access network node comprising processing circuitry the processing circuitry being configured to cause the access network node to:

• configure the wireless device with event conditions as to when the wireless device is to provide the CSI reporting to the access network node and with reporting configuration as to how the wireless device is to provide the CSI reporting to the access network node
• transmit reference signals in candidate beams;
• and
• receive the CSI reporting from the wireless device as a protocol layer 2 CSI report and in accordance with the reporting configuration.

A computer program for CSI reporting on protocol layer 2, the computer program comprising computer code which, when run on processing circuitry of a wireless device, the wireless device being configured to be served by an access network node on a serving beam, wherein the wireless device is configured with event conditions as to when to provide the CSI reporting to the access network node and with reporting configuration as to how to provide the CSI reporting to the access network node, causes the wireless device to:

• obtain CSI values by monitoring candidate beams in which reference signals are transmitted by the access network node;
• determine, based on comparing the CSI values to the event conditions, that at least one of the event conditions for CSI reporting is fulfilled;
• and
• send the CSI reporting to the access network node as a protocol layer 2 CSI report and in accordance with the reporting configuration.

A computer program for receiving CSI reporting on protocol layer 2, the computer program comprising computer code which, when run on processing circuitry of an access network node the access network node being configured to serve a wireless device on a serving beam, causes the access network node to:

• configure the wireless device with event conditions as to when the wireless device is to provide the CSI reporting to the access network node and with reporting configuration as to how the wireless device is to provide the CSI reporting to the access network node;
• transmit reference signals in candidate beams;
• and
• receive the CSI reporting from the wireless device as a protocol layer 2 CSI report and in accordance with the reporting configuration.