US 2019/0163846 A1 · METHOD AND APPARATUS OF USING DRIVE TEST DATA FOR PROPAGATION MODEL CALIBRATION

Abstract

A method using drive test data for propagation model calibration includes: step 1, obtaining original drive test data; step 2, selecting the data from the drive test data according to predefined conditions as effective drive test data; and step 3, extracting the effective drive test data to form a data file used for propagation model calibration. An apparatus using drive test data for propagation model calibration includes: a drive test data obtaining module, configured to obtain the drive test data in the regions to be calibrated; an effective drive test data generation module, configured to generate effective drive test data from the drive test data according to predefined conditions; and a data file generation module, configured to extract the effective drive test data to form a data file used for propagation model calibration. The present invention utilizes drive test data of existing networks to largely decrease the CW test work and reduce the network building cost. It is believed that the calibrated model can relatively accurately reflect the propagation characteristics in the field. Furthermore, base stations can be optimally allocated.

Claims12

Dependent claims

An apparatus configured to perform propagation model calibration, wherein the apparatus is configured to:

obtain, with a drive test data obtaining module, original drive test data;
select, with an effective drive test data generation module, data from the original drive test data according to predefined conditions as effective drive test data by:
deleting data without at least one of a longitude, a latitude, a signal strength value, or an identification number of a cell to be calibrated, or
deleting data with a signal strength not within a predetermined range;
and
extract, with a data file generation module, the effective drive test data to form a data file used for propagation model calibration;
wherein the original drive test data is obtained based on drive test times for the propagation model calibration or data amount for the propagation model calibration;
when the original drive test data is obtained based on the drive test times for the propagation model calibration, compare the drive test times for the propagation model calibration with the drive test times in a real test;
and
if the drive test times in the real test are larger than or equal to the drive test times for the propagation model calibration, it satisfies a data sufficiency requirement.

7 more elements

An apparatus configured to perform propagation model calibration, wherein the apparatus is configured to:

obtain, with a drive test data obtaining module, original drive test data;
select, with an effective drive test data generation module, data from the original drive test data according to predefined conditions as effective drive test data by:
deleting data without at least one of a longitude, a latitude, a signal strength value, or an identification number of a cell to be calibrated, or
deleting data with a signal strength not within a predetermined range;
and
extract, with a data file generation module, the effective drive test data to form a data file used for propagation model calibration;
wherein the original drive test data is obtained based on drive test times for the propagation model calibration or data amount for the propagation model calibration;
when the original drive test data are obtained based on a data amount for the propagation model calibration, compare the data amount for the propagation model calibration with an amount of the effective drive test data;
if the amount of the effective drive test data is larger than or equal to the data amount for the propagation model calibration, it satisfies a data sufficiency requirement;
and
if the amount of the effective drive test data is not larger than or equal to the data amount for the propagation model calibration, obtain original drive test data.

8 more elements

Dependencies are inferred from the claim text.

Method and apparatus of using drive test data for propagation model calibration

Life of this patent

Method and apparatus of using drive test data for propagation model calibration

Life of this patent

Abstract

Claims12