DM-RS transmission method and device in wireless mobile communication system

A method by a terminal in a wireless mobile communication system, the method comprising:

• identifying a first antenna port associated with the terminal;
• identifying a service type of the terminal;
• determining a demodulation reference signal (DM-RS) pattern based on the identified service type of the terminal;
• and
• receiving a downlink control channel and a DM-RS based on the DM-RS pattern,
• wherein the DM-RS pattern is determined based on the identified service type of the terminal from among a first DM-RS pattern and a second DM-RS pattern, the first DM-RS pattern being based on a first resource corresponding to the first antenna port, and the second DM-RS pattern being based on a second resource corresponding to the first antenna port and a second antenna port.

A base station of a wireless mobile communication system, the base station comprising:

• a transceiver;
• and
• a controller configured to:
• identify a service type of a terminal, the terminal being associated with a first antenna port;
• determine a demodulation reference signal (DM-RS) pattern based on the identified service type of the terminal from among a first DM-RS pattern and a second DM-RS pattern;
• and
• transmit, to the terminal, a downlink control channel and a DM-RS based on the DM-RS pattern,
• wherein the first DM-RS pattern is based on a first resource corresponding to the first antenna port, and the second DM-RS pattern is based on a second resource corresponding to the first antenna port and a second antenna port.

A terminal of a wireless mobile communication system, the terminal comprising:

• a transceiver;
• and
• a controller configured to:
• identify a first antenna port associated with the terminal;
• identify a service type of the terminal;
• determine a demodulation reference signal (DM-RS) pattern based on the identified service type of the terminal;
• and
• receive a downlink control channel and a DM-RS based on the DM-RS pattern,
• wherein the DM-RS pattern is determined based on the identified service type of the terminal from among a first DM-RS pattern and a second DM-RS pattern, the first DM-RS pattern being based on a first resource corresponding to the first antenna port, and the second DM-RS pattern being based on a second resource corresponding to the first antenna port and a second antenna port.