Method for estimating reception delay time of reference signal and apparatus using the same
AssigneeLocaila, Inc
InventorJaihyung Cho
Life of this patent
Estimating the term…
Abstract
Disclosed is a method of estimating, by a user equipment, a reception delay time of a reference signal, the method including 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.
Claims18
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.
A user equipment comprising:
- a communication interface device configured to communicate with another apparatus;
- a processor;
- and
- a memory configured to store at least one instruction executed through the processor,
- wherein the processor is configured to receive a reference signal from a base station, to set a plurality of summation time intervals within a time interval in which the reference signal is receive, and acquire a plurality of snapshot vectors corresponding to the plurality of summation time intervals, to calculate a covariance matrix based on the plurality of snapshot vectors, and to estimate a reception delay time of the reference signal based on the covariance matrix;
- wherein the plurality of summation time intervals 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.
A method of estimating, by a first base station, a reception delay time of a reference signal, the method comprising:
- receiving a reference signal from a second 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.
Dependencies are inferred from the claim text.