APPARATUS AND METHOD FOR MEASUREMENTING RADIO CHANNEL

摘要

The present invention relates to a transmitting and receiving apparatus and a method to measure a radio channel based on a reference signal transmitted through a predetermined number of OFDM symbols using multi-antennas at an ultra-high frequency band, and to control a beam width of analog beams formed based on multi-antennas transmission thereof. Therefore, the transmitting apparatus is configured to uniquely distribute the predetermined number of analog beams corresponding to each of the OFDM symbols, and to assign the analog beams distributed in the OFDM symbols respectively by repeating subcarriers inside the corresponding OFDM symbols. However, the receiving apparatus is configured to measures a channel state based on the reference signal transmitted via the analog beam assigned to each subcarrier by receiving a channel measurement instruction message including a resource allocation identification information, a transmission system identification information, and a beam index bitmap information. The receiving apparatus is configured to feedback the results of the measurement of the channel state to the transmitting apparatus.