Patent ID: 11949607
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A terminal in a communication system, the terminal comprising:
a transceiver; and
a controller coupled with the transceiver and configured to:
receive, from a base station, configuration information for a channel state information reference signal (CSI-RS), the configuration information including information on a number of CSI-RS antenna ports, a type of code division multiplexing (CDM), and a plurality of CSI-RS configurations, wherein a CSI-RS configuration is associated with locations of CSI-RS resource elements (REs) of the CSI-RS configuration,
receive, from the base station, the CSI-RS based on the configuration information for the CSI-RS,
obtain channel state information (CSI) based on the received CSI-RS, and
transmit, to the base station, the CSI,
wherein in case that the number of CSI-RS antenna ports is 24 or 32 and the type of CDM indicates CDM-8, the CSI-RS is based on a plurality of RE sets for a plurality of CDM-8 patterns, respectively, and an RE set includes 8 REs in a subframe, and
wherein the 8 REs are composed of a plurality of REs from each of the plurality of CSI-RS configurations.