KT Corporation
Method for multiplexing DMRS and data in new radio and apparatuses thereof

Abstract:

The provided are a method of transmitting and receiving data using empty resource elements (REs) located in a demodulation reference signal (DMRS) symbol in a next-generation/5G radio access network. The method of a base station for transmitting DMRS port allocation information to a terminal may include configuring one or more available RE patterns; transmitting, to the terminal, information indicating an available RE pattern to be used by the terminal among the available RE patterns; and transmitting the DMRS port allocation information to the terminal. The available RE pattern is composed of REs to which no DMRSs are allocated among REs located on a symbol to which DMRSs are to be allocated, and through the REs in the available RE pattern, the base station receives uplink data from the terminal or transmits downlink data to the terminal.