METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNAE Russian patent published in 2014 - IPC H04B7/04 

FIELD: radio engineering, communication.

SUBSTANCE: method and apparatus for transmitting a downlink reference signal in a wireless communication system supporting multiple antennae are disclosed. The method of transmitting Channel State Information-Reference Signals (CSI-RSs) for eight or less antenna ports includes steps of selecting one of a plurality of CSI-RS Resource Element (RE) groups defined in a data region of a downlink subframe and mapping CSI-RS for the eight or less antenna ports to the selected CSI-RS RE group, and transmitting the downlink subframe in which the CSI-RS for the eight or less antenna ports are mapped. The plurality of CSI-RS RE groups are defined such that a transmission diversity RE pair for data transmitted in the downlink subframe is not broken.

EFFECT: high transmission channel throughput.

12 cl, 36 dwg