APPARATUS AND METHOD FOR USING CODEBOOK WIRELESS COMMUNICATION SYSTEM

摘要

The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). According to various embodiments, an apparatus of a UE in a wireless communication system, the apparatus comprises a transceiver, and a controller operatively coupled with transceiver. The controller is configured to receive, from a base station, downlink signals for indicating parameters for a codebook, and transmit, to the base station, information for at least one precoding matrix indicator (PMI) for the codebook determined based on the parameters. The parameters comprises a first parameter associated with a number of antenna ports for a first dimension, a second parameter associated with a number of antenna ports for a second dimension, a third parameter associated with an oversampling rate for beams in the first dimension, and a fourth parameter associated with an oversampling rate for beams in the second dimension.