METHOD AND APPARATUS FOR REPORTING A CELL QUALITY MEASUREMENT RESULT FOR MDT BY A TERMINAL

• US 20130034013A1
• Filed: 04/27/2011
• Published: 02/07/2013
• Est. Priority Date: 04/28/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Jung, Sung Hoon, Chun, Sung Duck, Yi, Seung June, Lee, Young Dae, Park, Sung Jun
• Granted Patent: US 9,107,102 B2
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic

Abstract

The present invention relates to a method and apparatus for reporting a cell quality measurement result for minimization of drive test (MDT) to a base station in an efficient manner by a terminal. The method for reporting a quality measurement result for MDT by a terminal according to one aspect of the present invention comprises: receiving from a base station a first message that contains logging configuration information of a quality measurement result for the MDT; performing quality measurement for the MDT and logging the quality measurement result according to logging configuration information contained in the first message; receiving from the base station a second message that contains information regarding whether the base station supports the report of the quality measurement result; and transmitting to the base station a message notifying the existence of the logged quality measurement result, if the second message contains the information regarding the support of the measurement result.

Claims

1. A method of reporting a quality measurement result for minimization of drive test (MDT) by a user equipment (UE), the method comprising:

receiving a first message including logging configuration information of the quality measurement result for MDT from a base station (BS);

performing quality measurement for MDT and logging the quality measurement result according to the logging configuration information included in the first message;

receiving a second message including information indicating whether the BS supports reporting of the quality measurement result from the BS; and

transmitting, to the BS, a message indicating that the logged quality measurement result is present, if the second message includes information indicating that reporting of the quality measurement result is supported.

2. The method according to claim 1, wherein the second message includes one of information indicating that the BS supports reporting of the logged quality measurement result or information indicating that the BS does not support reporting of the logged quality measurement result.

3. The method according to claim 1, wherein the second message is received via a UE-specific channel.

4. The method according to claim 1, wherein the second message is received via a broadcast channel.

5. The method according to claim 1, further comprising:

operating a predetermined first timer after logging the quality measurement result; and

deleting the logged quality measurement result if the operated first timer has expired.

6. The method according to claim 5, further comprising stopping operation of the first timer if the second message includes information indicating that reporting of the quality measurement result is not supported.

7. The method according to claim 6, further comprising, if a second message including information indicating that reporting of the quality measurement result is supported is further received after stopping operation of the first timer,

transmitting, to the BS, a message indicating that the logged quality measurement result is present;

and resuming operation of the first timer.

8. A method of reporting a quality measurement result for minimization of drive test (MDT) by a user equipment (UE), the method comprising:

receiving a first message including logging configuration information of the quality measurement result for MDT from a serving base station (BS);

performing quality measurement for MDT and logging the quality measurement result according to the logging configuration information included in the first message;

receiving a handover command message including information indicating whether a target BS supports reporting of the quality measurement result from the serving BS; and

transmitting, to the target BS, a handover complete message including information indicating that the logged quality measurement result is present, if the handover command message includes information indicating that the target BS supports reporting of the quality measurement result.

9. The method according to claim 8, wherein the handover command message includes one of information indicating that the target BS supports reporting of the logged quality measurement result or information indicating that the target BS does not support reporting of the logged quality measurement result.

10. The method according to claim 8, further comprising:

operating a predetermined first timer after logging the quality measurement result; and

deleting the logged quality measurement result if the operated first timer has expired.

11. The method according to claim 10, further comprising stopping operation of the first timer if the handover command message includes information indicating that reporting of the quality measurement result is not supported.

12. The method according to claim 11, further comprising, if a message including information indicating that reporting of the quality measurement result is supported is further received from the target BS after stopping operation of the first timer,

transmitting, to the target BS, a message indicating that the logged quality measurement result is present;

and

resuming operation of the first timer.

13. A user equipment (UE) for reporting a quality measurement result for minimization of drive test (MDT), the UE comprising:

a reception module;

a transmission module; and

a processor configured to perform quality measurement for MDT if a first message including logging configuration information of the quality measurement result for MDT is received from a base station (BS) through the reception module and to log the quality measurement result according to the logging configuration information included in the first message,

wherein the processor is further configured to receive a second message including information indicating whether the BS supports reporting of the quality measurement result from the BS through the reception module and transmit, to the BS, a message indicating that the logged quality measurement result is present, if the second message includes information indicating that reporting of the quality measurement result is supported.

14. The UE according to claim 13, wherein the second message includes one of information indicating that the BS supports reporting of the logged quality measurement result or information indicating that the BS does not support reporting of the logged quality measurement result.

15. The UE according to claim 13, wherein:

the processor is configured to operate a predetermined first timer after logging the quality measurement result and deletes the logged quality measurement result if the operated first timer has expired, and

the processor is configured to stop operation of the first timer if the second message includes information indicating that reporting of the quality measurement result is not supported.

16. A user equipment (UE) for reporting a quality measurement result for minimization of drive test (MDT), the UE comprising:

a reception module;

a transmission module; and

a processor configured to perform quality measurement for MDT if a first message including logging configuration information of the quality measurement result for MDT is received from a serving base station (BS) through the reception module and to log the quality measurement result according to the logging configuration information included in the first message,

wherein the processor is further configured to receive a handover command message including information indicating whether a target BS supports reporting of the quality measurement result from the serving BS through the reception module and transmits, to the BS, a handover complete message indicating that the logged quality measurement result is present through the transmission module, if the handover command message includes information indicating that the target BS supports reporting of the quality measurement result.

17. The UE according to claim 16, wherein the handover command message includes one of information indicating that the target BS supports reporting of the logged quality measurement result or information indicating that the target BS does not support the logged quality measurement result.

18. The UE according to claim 16, wherein:

the processor is configured to operate a predetermined first timer after logging the quality measurement result, and delete the logged quality measurement result if the operated first timer has expired, and

the processor is configured to stop operation of the first timer if the handover command message includes information indicating that reporting of the quality measurement result is not supported.