Patent ID: 11929948
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A base station (BS) configured to transmit a Physical Downlink Shared Channel (PDSCH) in a wireless communication system, the BS comprising:
at least one transceiver;
at least one processor; and
at least one computer memory operably connected to the at least one processor and configured to, when executed, cause the at least one processor to perform operations comprising:
transmitting, to a user equipment (UE), Radio Resource Control (RRC) configuration including first information related to semi-persistent (SP) zero power-channel state information reference signal (ZP CSI-RS) resource sets each consisting of multiple ZP CSI-RS resources;
transmitting, to the UE, Medium Access Control (MAC) signaling including second information for activating a SP ZP CSI-RS resource set among the SP ZP CSI-RS resource sets;
mapping resource elements for the PDSCH based on the first to third information;
transmitting a Physical Downlink Control Channel (PDCCH) carrying Downlink Control Information (DCI) scheduling the PDSCH, the DCI includes third information designating a ZP CSI-RS resource among ZP CSI-RS resources included in the SP ZP CSI-RS resource set activated based on the second information; and
transmitting, to the UE, the PDSCH,
wherein the PDSCH is not mapped to the ZP CSI-RS resource by rate-matching for the PDSCH.