Patent ID: 11863267
Assignee: INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 2:
3. The channel estimation apparatus of claim 1, wherein the transmission control module comprises:
a signal generation parameter generation module configured to generate a predetermined signal generation parameter for generating a Zadoff-Chu sequence and transmits the generated predetermined signal generation parameter to the pilot signal generation module;
a signal switching switch control module configured to control a switching operation of the signal switching switch to connect the pilot signal generation module or the transmission communication module to the phase shift network;
a precoding vector extraction module configured to receive the phase shift information corresponding thereto from the receiver that receives transmission pilot signals and beamforming information by the pilot signal generation module and the transmission communication module to extract a corresponding precoding vector from a pre-stored codebook using the phase shift information; and
a phase delay value setting module configured to set a phase delay value of each of the phase shifters of the phase shift network as a phase delay value corresponding to each transmission antenna included in the precoding vector extracted from the precoding vector extraction module.