Patent ID: 11949481
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. A host computer comprising:
processing circuitry configured to provide user data;
a communication interface configured to initiate a transmission carrying the user data to a cellular network for transmission to a user equipment (l E),
wherein the cellular network comprises a base station, the base station comprising a radio interface, memory operable to store instructions and processing circuitry operable to execute the instructions, whereby the base station is operable to:
send, to the UE, a semi-static indication of a Channel State Information, CSI, reporting setting comprising one or more sets of aperiodic Non-Zero Power, NZP, Channel State Information Reference Signal, CSI-RS, resources for channel measurement, wherein each of the one or more sets of aperiodic NZP CSI-RS resources contains a single aperiodic NZP CSI-RS resource with precoded CSI-RS port(s), and one or more sets of aperiodic NZP CSI-RS resources for interference measurement, wherein each of the one or more sets of aperiodic NZP CSI-RS resources for interference measurements contain one or more NZP CSI-RS resources and each CSI-RS port in the one or more NZP CSI-RS resources for interference measurements corresponds to a Multiple User Multiple Input Multiple Output, MU-MIMO, interference layer associated with a co-scheduled UE;
send, to the UE, a dynamic indication requesting a CSI report according to the CSI reporting setting and a first set of aperiodic NZP CSI-RS resources from the one or more sets of aperiodic NZP CSI-RS resources for channel measurement and a second set of aperiodic NZP CSI-RS resources from the one or more sets of aperiodic NZP CSI-RS resources for interference measurement; and
receive, from the UE, a CSI report comprising a rank and a Channel Quality Indicator, CQI.