Apparatus and method for transmitting muting information, and apparatus and method for acquiring channel state using same

A method for receiving Channel State Information-Reference Signal (CSI-RS) information, the method comprising:

• receiving CSI-RS information including a CSI-RS zero power configuration associated with a cycle and an offset of zero power transmission subframes and a CSI-RS zero power configuration list having an n-bit bitmap, the n being an integer among 12 to 28, and each bit of the n-bit bitmap indicating whether to apply zero power transmission for resource elements corresponding to a CSI-RS pattern for a specific number of antenna ports;
• and
• receiving a signal including data, mapped to the resource elements using the CSI-RS information.

A user equipment to receive Channel State Information-Reference Signal (CSI-RS) information, the user equipment comprising:

• a processor configured to receive and determine CSI-RS information including a CSI-RS zero power configuration associated with a cycle and an offset of zero power transmission subframes and a CSI-RS zero power configuration list having an n-bit bitmap, the n being an integer among 12 to 28, each bit of the n-bit bitmap indicating whether to apply zero power transmission for resource elements corresponding to a CSI-RS pattern for a specific number of antenna ports;
• and
• a receiver to receive a signal including data, mapped to the resource elements using the CSI-RS information.