Patent ID: 11963122
Assignee: LOCAILA, INC
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 0:
1. A method of estimating, by a user equipment, a reception delay time of a reference signal, the method comprising:
receiving a reference signal from a base station;
setting a plurality of summation time intervals within a time interval in which the reference signal is received, and acquiring a plurality of snapshot vectors corresponding to the plurality of summation time intervals;
calculating a covariance matrix based on the plurality of snapshot vectors; and
estimating a reception delay time of the reference signal based on the covariance matrix; wherein the plurality of summation time intervals is set by shifting a start point of a summation time interval within the time interval in which the reference signal is received by an integer multiple of a sample time that is determined based on a sampling rate.