Method and apparatus for transmitting reference signal in multiple input multiple output communication system

摘要

Disclosed is a method for allocating a reference signal, in a method for transmitting a Channel State Information-Reference Signal (CSI-RS) for measuring a transmission channel according to each antenna and a data signal in a broadband wireless communication system based on a multiple input multiple output (MIMO) scheme through a plurality of antennas.

主权项

1. A method for transmitting a Channel State Information-Reference Signal (CSI-RS) for measuring a transmission channel by a device in a wireless communication system, the method comprising:
transmitting CSI-RS configuration information, wherein the CSI-RS configuration information comprises:
subframe configuration information indicating a subframe in which the CSI-RS is transmitted, andresource configuration information indicating an allocation pattern of the CSI-RS; and transmitting the CSI-RS according to the CSI-RS configuration information such that, when the CSI-RS is transmitted on two or more antenna ports of the device, the allocation pattern of the CSI-RS within a single subcarrier includes only two consecutive resource elements (REs) in only one slot among two slots of the subframe.