| abstract |
A communication method and apparatus through analog and digital hybrid beamforming is disclosed. The method according to the present invention comprises: receiving, from a base station, a first message including measurement and selection conditions for hybrid beamforming, and performing channel measurement on a plurality of base station transmission beams based on the measurement / selection conditions And selecting at least one base station transmission beam according to the measurement / selection condition based on the channel measurement result, transmitting report information on the selected base station transmission beam to the base station, and Receiving from the second message including measurement and reporting conditions for digital beamforming for the base station transmission beam finally selected by the base station, and an effective channel for the selected base station transmission beam according to the measurement / reporting condition. Estimating a matrix, and determining a matrix at the base station based on the effective channel matrix. Determining information for full beamforming, feeding back the determined information to the base station, and receiving a data burst transmitted from the base station according to a scheduled MIMO mode and / or configuration based on the fed back information. It includes. The present invention can maximize system efficiency / diversity performance while overcoming large propagation loss in the ultra-high frequency band. |