Semi-persistent CSI feedback over PUSCH
A user equipment, base station and method for transmitting semi-persistent channel state information (SP-CSI) on a physical uplink shared channel (PUSCH) are provided. The user equipment includes processing circuitry configured to receive a control signaling message the control signaling message configuring the user equipment with at least one SP CSI report configuration on the PUSCH, and the message identifying a SP CSI reporting periodicity. The user equipment also receives physical layer control signaling identifying and activating the at least one SP CSI report configuration. Transmitter circuitry is configured to transmit a plurality of SP CSI reports, the reports being transmitted with the periodicity and according to the physical layer control signaling and the control signaling message.
1. A user equipment for wireless communications, the user equipment comprising:
processing circuitry configured to:
identify a report configuration for semi-persistent Channel State Information, SP CSI, reporting on a physical uplink shared channel, PUSCH; and
deactivate the report configuration, the deactivating being based on a combination of bit fields in a downlink control information, DCI.
2. A base station for adaptively configuring semi-persistent Channel State Information, SP CSI, on a physical uplink shared channel, PUSCH, the base station comprising:
processing circuitry configured to:
cause transmission of a configuring message to configure a user equipment with at least one SP CSI report configuration on the PUSCH, and the configuring message identifying a SP CSI reporting periodicity;
cause transmission of physical layer control signaling identifying and activating the at least one SP CSI report configuration; and
receive a plurality of SP CSI reports, the reports being transmitted with the periodicity and according to the physical layer control signaling and the configuring message.
3. The base station of claim 2 , wherein the at least one SP CSI report configuration includes a slot offset.
4. The base station of claim 2 , wherein the at least one SP CSI report configuration includes at least one selected from a group consisting of:
at least one SP CSI report setting including a slot offset for each of the at least one SP CSI report configuration; and
at least one SP CSI report setting including at least one of a resource for channel measurement and a resource for interference measurement.
5. The base station of claim 2 , wherein the identifying and activating of the at least one SP CSI report configuration is further based on a semi persistent (SP) radio network temporary identifier.
6. The base station of claim 2 , wherein the processing circuitry is further configured to cause the identification and deactivation of the at least one SP CSI configuration.
7. The base station of claim 6 , wherein at least one of the activating and deactivating of the at least one SP CSI report configuration is based a combination of bit fields in downlink control information, DCI.
8. The base station of claim 2 , wherein different components of a plurality of SP CSI reports are coded independently.
9. The base station of claim 2 , wherein the physical layer control signaling indicates a slot offset between a slot carrying the physical layer control signaling and a slot on which the at least one SP CSI report is transmitted.