Method and apparatus for channel estimation in communication system
AssigneeElectronics and Telecommunications Research Institute
InventorsKyeong Pyo Kim, Woo Ram Shin, Young Jo Ko, Kap Seok Chang
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Abstract
An operation method of a transmitter in a communication system may comprise: configuring a first reference signal region for transmission of a first reference signal in the delay-Doppler domain; arranging the first reference signal having a sequence form in a specific region within the first reference signal region; transforming a delay-Doppler domain signal including the first reference signal into a time domain signal; and transmitting the time domain signal to a receiver.
Claims9
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 reference signal region configured for transmission and reception of the delay-Doppler domain signal;
- performing a cross-correlation operation on the reference signal region;
- determining an effective region within the reference signal region based on a result of the cross-correlation operation;
- and
- estimating a channel based on a result of the cross-correlation operation on the effective region.
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.
Dependencies are inferred from the claim text.