Patent ID: 11888774
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. An operation method of a receiver in a communication system, the operation method comprising:
receiving a time domain signal from a transmitter;
transforming the time domain signal into a delay-Doppler domain signal;
separating a first reference signal region configured for transmission and reception of a first reference signal and a second reference signal region configured for transmission and reception of a second reference signal in the delay-Doppler domain signal;
determining a first effective region by performing a first cross-correlation operation on the first reference signal region;
determining a second effective region by performing a second cross-correlation operation on, the second reference signal region; and, estimating a channel based on a combination of a result of the first cross-correlation operation on the first effective region and a result of the second cross-correlation operation on the second effective region.