Patent ID: 11901993
Assignee: LG ELECTRONICS INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 9:
10. A base station operating in a wireless communication system,
the base station comprising:
at least one transceiver for transmitting and receiving a wireless signal; and
at least one processor for controlling the at least one transceiver,
wherein the at least one processor configured to:
transmit, to a terminal, configuration information related to channel state information (CSI) resource setting,
wherein the configuration information includes information on a CSI-reference signal (CSI-RS) resource set;
transmit a CSI-RS to the terminal; and
receive, from the terminal, CSI derived using the CSI-RS,
wherein the CSI-RS resource set is configured with a first resource group, a second resource group and N (N is a natural number) resource pairs,
wherein the CSI includes i) one CSI-RS resource indicator (CRI) corresponding to one resource pair of the N resource pairs and ii) two precoding matrix indicators (PMIs) associated to a first resource of the first resource group and a second resource of the second resource group, respectively, of the one resource pair,
wherein the PMIs for the one resource pair are derived based on the one CRI for the one resource pair, and
wherein, for deriving a PMI for the first resource group, interference from the second resource of the one resource pair is derived.