Csi feedback for multi-trp urllc schemes

A method performed by a base station for enabling Channel State Information, CSI, reporting, the method comprising:

• transmitting, to a wireless device, a configuration for a plurality of Non-Zero Power, NZP, CSI Reference Signal, CSI-RS, resources;
• and
• receiving, from the wireless device, calculated CSI parameters including one or more of:
• one Rank Indicator, RI, N Precoding Matrix Indicators, PMIs, one Channel Quality Indicator, CQI, along with one or more of the following as part of CSI reporting:
• a single CSI-RS Resource Indicator, CRI, indicating the selected N NZP CSI-RS resources;
• N CRIs indicating the selected N NZP CSI-RS resources;
• and
• no CRI.

A wireless device to support Physical Uplink Shared Channel, PUSCH, multiple Transmission/Reception Point, multi-TRP, transmission comprising:

• one or more transmitters;
• one or more receivers;
• and
• processing circuitry associated with the one or more transmitters and the one or more receivers, the processing circuitry configured to cause the wireless device to:
• receive a configuration for a plurality of Non-Zero Power, NZP, Channel State Information Reference Signal, CSI-RS, resources from a base station;
• perform channel measurement on the plurality of NZP CSI-RS resources;
• select N of the plurality of NZP CSI-RS resources;
• perform Channel State Information, CSI computations and/or calculating CSI parameters including one or more of:
• one Rank Indicator, RI, N Precoding Matrix Indicators, PMIs, and one Channel Quality Indicator, CQI;
• and
• report the calculated CSI parameters including one or more of:
• one RI, N PMIs, one CQI along with one or more of the following as part of CSI reporting:
• a single CSI-RS Resource Indicator, CRI, indicating the selected N NZP CSI-RS resources;
• N CRIs indicating the selected N NZP CSI-RS resources;
• and
• no CRI.

A base station to support Physical Uplink Shared Channel, PUSCH, multiple Transmission/Reception Point, multi-TRP, transmission, comprising:

• one or more transmitters;
• one or more receivers;
• and
• processing circuitry associated with the one or more transmitters and the one or more receivers, the processing circuitry configured to cause the base station to perform one or more of:
• transmit, to a wireless device, a configuration for a plurality of Non-Zero Power, NZP, Channel State Information Reference Signal, CSI-RS, resources;
• and
• receive, from the wireless device, calculated Channel State Information, CSI, parameters including one or more of:
• one Rank Indicator, RI, N Precoding Matrix Indicators, PMIs, one Channel Quality Indicator, CQI, along with one or more of the following as part of CSI reporting:
• a single CSI-RS Resource Indicator, CRI, indicating the selected N NZP CSI-RS resources;
• N CRIs indicating the selected N NZP CSI-RS resources;
• and
• no CRI.