Patent ID: 11916824
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A reception user equipment (UE) for transmitting a feedback signal in a wireless communication system comprising:
a transceiver; and
a processor,
wherein
the processor is configured to:
receive a first reference signal and a second reference signal from a transmission user equipment (UE); and
transmit the feedback signal to the transmission user equipment (UE) based on the first reference signal and the second reference signal,
wherein
the feedback signal includes information about a time difference between a first FFT (Fast Fourier Transform) window for receiving the first reference signal and a second FFT window for receiving the second reference signal; and
a distance between the transmission user equipment (UE) and the reception user equipment (UE) is calculated based on a time difference between the first FFT window and the second FFT window.