Patent ID: 11909480
Assignee: LENOVO (BEIJING) LIMITED
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A method comprises:
receiving a channel state information-reference signal (CSI-RS) resource identifier (CRI) that indicates a resource configuration for CSI-RS for downlink (DL) channel measurement;
measuring a layer 1 reference signal received power (L1-RSRP) on the CSI-RS;
transmitting a report of the L1-RSRP measurement to a base station;
determining a precoding matrix for non-codebook (non-CB) uplink (UL) transmission based on the CRI and the L1-RSRP measurement in response to an UL frequency and a DL frequency being in a same band; and
performing a non-CB UL transmission using the precoding matrix.