Importance

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Abstract

The disclosure relates to wireless communications, and, in particular, to devices and methods for wireless communication using advanced demodulation reference signals (DMRSs). A method by a user equipment (UE) in a wireless communication system is provided. The method includes receiving, by the UE from a base station, at least one configuration information associated with a demodulation reference signal (DMRS), identifying, by the UE, at least one of a code division multiplexing (CDM) group, a frequency domain (FD) orthogonal cover code (OCC), and a time domain (TD) OCC for the DMRS based on the at least one configuration information; and receiving, by the UE from the base station, the DMRS based on the at least one of the CDM group, the FD OCC, and the TD OCC, wherein a number of CDM groups is 4, wherein the FD OCC includes at least one of (+1,+1,+1,+1), (+1,−j,+1,+j), (+1,−1,+1,−1), and (+1,+j,−1,−1), and wherein the TD OCC includes at least one of (+1,+1,+1,+1), (+1,−j,+1,+j), (+1,−1,+1,−1), and (+1,+j,−1,−1).

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First Claim