Patent ID: 9369189
Filing Date: 2016-06-14
CPC Classification: H04B,H04L

Claim Text:
1. A method for transmitting channel information by a receiver in a communication system using beam forming, the method comprising: receiving reference signals transmitted through transmission beams of a transmitter by a first radio frequency chain using reception beams of the receiver during a first period; determining a reception beam among reception beams of the receiver based on receive strengths of the reference signals received by the first radio frequency chain; receiving reference signals transmitted through the transmission beams by a second radio frequency chain using the determined reception beam during a second period; determining a transmission beam among the transmission beams of a transmitter based on receive strengths of the reference signals received by the second radio frequency chain; and measuring a channel state based on a reference signal corresponding to determined transmission beam and the determined reception beam, and transmitting channel information related to the channel state to the transmitter.