METHOD FOR ALLOWING TERMINAL TO REPORT MEASUREMENT RESULT FOR MDT TO BASE STATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR

• US 20130121204A1
• Filed: 08/10/2011
• Published: 05/16/2013
• Est. Priority Date: 08/16/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Chun, Sungduck, Yi, Seungjune, Jung, Sunghoon, Lee, Youngdae, Park, Sungjun, Lee, Kyungjun
• Granted Patent: US 9,560,539 B2
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports

Abstract

The present invention provides a method for a terminal to report the measurement result of a minimization of drive test (MDT) in a wireless communication system. More specifically, the method comprises the steps of: receiving MDT setup information from said base station; performing cell measurement on the basis of said MDT setup information; storing the result of said cell measurement in an MDT log on the basis of a valid time that precedes as much as the second interval from storage times, at every storage time of a first interval unit that is contained in said MDT setup information; and reporting to said base station the MDT log in which the result of said cell measurement is stored.

Claims

1-10. -10. (canceled)

11. A method for reporting a result of a Minimization of Drive Test (MDT) measurement to a base station at a user equipment in a wireless communication system, the method comprising:

receiving MDT configuration information from the base station;

performing a cell measurement based on the MDT configuration information;

logging, at a logging point defined by a first interval, a measurement result within a second interval from the logging point, the information on the first interval is included in the MDT configuration information; and

reporting the measurement result to the base station.

12. The method of claim 11, wherein the first interval is a logging period.

13. The method of claim 11, wherein the second interval is a length of a window within the first interval.

14. The method of claim 11, logging the measurement result comprises:

if there are a plurality of measurement results within the second interval from the logging point, logging the measurement result being nearest from the logging point among the plurality of measurement results.

15. The method of claim 11, logging the measurement result comprises:

if there are a plurality of measurement results within the second interval from the logging point, logging an average value of the plurality of measurement results.

16. The method of claim 11, logging the measurement result comprises:

if there is not any measurement result within the second interval from the logging points, logging a predetermined value.

17. The method of claim 11, wherein the predetermined value is a lowest value among values indicating a result of the cell measurement.

18. The method of claim 11, logging the measurement result comprises:

if there is not any measurement result within the second interval from the logging point, logging a measurement result being nearest from the logging point.

19. The method of claim 18, logging the measurement result comprises:

logging an indicator for indicating that there is not a measurement result within the second interval from the logging point.

20. The method of claim 11, wherein the MDT configuration information includes information on the second interval.

21. The method of claim 11, wherein the user equipment is in a RRC (Radio Resource Control) idle state.

22. The method of claim 11, wherein the first interval and the second interval are defined as multiple of a Discontinuous Reception (DRX) cycle.