A method of a terminal in a wireless communication system, the method comprising: identifying demodulation reference signal, DMRS, type information and DMRS symbol length information; identifying port number information for receiving a DMRS, the port number information indicating a port number for the terminal in DMRS information; identifying code division multiplexing, CDM, group information, an offset value, frequency-domain orthogonal cover code, OCC, information, and time-domain OCC information corresponding to the indicated port number for the terminal in the DMRS information, based on the DMRS type information, the DMRS symbol length information, the offset value being 0 or 1, in case that the DMRS type information is a DMRS type 1 and the DMRS symbol length indicates two symbols; identifying at least one symbol and subcarrier mapped to the DMRS based on the identified information; and receiving the DMRS based on the identified at least one symbol and subcarrier, wherein the DMRS information includes parameters for the CDM group information, the offset value associated with a location for a frequency domain, the frequency-domain OCC information, and the time-domain OCC information corresponding to each port number of multiple port numbers, wherein, in a case that the DMRS type information is the DMRS type 1 and the DMRS symbol length indicates two symbols, the parameters are identified according to table 1: [table 1] p CDM group λ Δ w f ( k' ) w t ( l' ) k' = 0 k' = 1 l' = 0 l' = 1 1000 0 0 +1 +1 +1 +1 1001 0 0 +1 -1 +1 +1 1002 1 1 +1 +1 +1 +1 1003 1 1 +1 -1 +1 +1 1004 0 0 +1 +1 +1 -1 1005 0 0 +1 -1 +1 -1 1006 1 1 +1 +1 +1 -1 1007 1 1 +1 -1 +1 -1 wherein p corresponds to the port number, Δ corresponds to the offset information, k' corresponds to a subcarrier index, l' corresponds to a symbol index, w f ( k' ) corresponds to the frequency-domain OCC information, and w t ( l ') corresponds to the time-domain OCC information. identifying demodulation reference signal, DMRS, type information and DMRS symbol length information; identifying port number information for receiving a DMRS, the port number information indicating a port number for the terminal in DMRS information; identifying code division multiplexing, CDM, group information, an offset value, frequency-domain orthogonal cover code, OCC, information, and time-domain OCC information corresponding to the indicated port number for the terminal in the DMRS information, based on the DMRS type information, the DMRS symbol length information, the offset value being 0 or 1, in case that the DMRS type information is a DMRS type 1 and the DMRS symbol length indicates two symbols; identifying at least one symbol and subcarrier mapped to the DMRS based on the identified information; and receiving the DMRS based on the identified at least one symbol and subcarrier, wherein the DMRS information includes parameters for the CDM group information, the offset value associated with a location for a frequency domain, the frequency-domain OCC information, and the time-domain OCC information corresponding to each port number of multiple port numbers, wherein, in a case that the DMRS type information is the DMRS type 1 and the DMRS symbol length indicates two symbols, the parameters are identified according to table 1: [table 1] p CDM group λ Δ w f ( k' ) w t ( l' ) k' = 0 k' = 1 l' = 0 l' = 1 1000 0 0 +1 +1 +1 +1 1001 0 0 +1 -1 +1 +1 1002 1 1 +1 +1 +1 +1 1003 1 1 +1 -1 +1 +1 1004 0 0 +1 +1 +1 -1 1005 0 0 +1 -1 +1 -1 1006 1 1 +1 +1 +1 -1 1007 1 1 +1 -1 +1 -1 wherein p corresponds to the port number, Δ corresponds to the offset information, k' corresponds to a subcarrier index, l' corresponds to a symbol index, w f ( k' ) corresponds to the frequency-domain OCC information, and w t ( l ') corresponds to the time-domain OCC information. <EOS>