Method and Device for Performing a Logged Measurement in a Wireless Communication System

• US 20130196604A1
• Filed: 10/10/2011
• Published: 08/01/2013
• Est. Priority Date: 10/10/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Jung, Sung Hoon, Yi, Seung June, Lee, Young Dae, Chun, Sung Duck, Park, Sung Jun
• Granted Patent: US 9,185,580 B2
• Time in Patent Office: Days
• US Class Current: 455/67.11
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports

Abstract

A method for performing a logged measurement in wireless communication system is provided. The method includes receiving measurement configuration from a network, logging MDT (Minimization of Driving Tests) measurement, detecting whether a condition for state transition has occurred, performing state transition when the condition for state transition has occurred, and logging state transition information related to said state transition.

Claims

1. A method for performing a logged measurement in wireless communication system, which comprises:

receiving, by a user equipment (UE), measurement configuration from a network,

logging, by the UE, MDT (Minimization of Driving Tests) measurement,

detecting, by the UE, whether a condition for state transition has occurred,

performing by the UE, state transition when the condition for state transition has occurred, and

logging, by the UE, state transition information related to said state transition.

2. The method of claim 1, wherein the step of performing state transition includes transiting to the state of suspending logging when the condition occurred for state transition is a condition for suspending logging.

3. The method of claim 2, wherein the state transition information includes an indicator indicating that state transition has been made to the state of suspending logging.

4. The method of claim 3, wherein the state transition information further includes the condition for suspending logging.

5. The method of claim 4, wherein the state transition information further includes the time that the terminal performed state transition.

6. The method of claim 5, wherein the condition for suspending logging includes at least one of:

leaving of the UE from the RRC (radio resource control) state which is configured to perform logging,

leaving of the UE from the RAT (Radio Access Technology) which is configured to perform logging,

leaving of the UE from logging area,

leaving of the UE from logging PLMN (Public Land Mobile Network),

leaving of the EU from the state of normal camping, and

whether total sum of the contents of the log including the logged MDT measurement and the state transition information reaches a predetermined value.

7. The method of claim 2, wherein the state transition includes

state transition of the UE to the state in which logging is available, and

logging of MDT measurement by the UE

when the condition for state transition occurred is a condition for resuming logging.

8. The method of claim 7, wherein the state transition information includes an indicator indicating that stat transition has been made to the state in which logging is available.

9. The method of claim 8, wherein the state transition information further includes the condition for resuming logging.

10. The method of claim 9, wherein the state transition information further includes the time that the terminal has performed state transition.

11. The method of claim 10, wherein the condition for resuming logging includes at least one of:

entering of the UE to RRC (radio resource control) which is configured to perform logging,

entering of the UE to RAT which is configured to perform logging,

entering of the UE to logging area,

entering of the UE to logging PLMN, and

entering of the UE to the state of normal camping.

12. The method of claim 1, wherein the UE is configured to periodically perform logging of the MDT measurement.

13. The method of claim 1, wherein the UE is configured to perform logging based on the generation of events.

14. The method of claim 1, further comprising

receiving, by the UE, request for reporting log contents from said network, and

transferring, by the UE, in response to the request for reporting, log contents including the logged MDT measurement and the state transition information to the network.

15. A device for performing logged measurement in wireless communication system, which comprises:

a RF (Radio Frequency) unit for receiving and transmitting radio signal; and

a processor connected to the RF unit, wherein the processor being configured to;

receive measurement configuration from a network,

log MDT measurement,

detect occurrence of a condition for state transition,

transit the state when the condition for state transition occurs, and

perform logging state transition information related to the state transition.