Patent ID: 11398930

Abstract:
A wireless device receives radio resource control (RRC) message(s) indicating a plurality of control resource set (coreset) groups for a cell and a plurality of sounding reference signal (SRS) resource sets for the cell. Each of the plurality of coreset groups correspond with a respective one of the plurality of SRS resource sets. The wireless device receives, via a coreset group of the plurality of coreset groups, a downlink control information (DCI) comprising resource assignments and an SRS resource indication (SRI) index for an uplink channel of the cell. The wireless device determines an SRS resource set, from the plurality of SRS resource sets, corresponding to the coreset group. The wireless device determines an SRS resource from the SRS resource set based on the SRI and the wireless device may transmit the uplink channel with a spatial domain filter determined based on the SRS resource.