METHOD AND APPARATUS FOR PERFORMING LOGGED MEASUREMENT IN A WIRELESS COMMUNICATION SYSTEM

• US 20130010631A1
• Filed: 03/24/2011
• Published: 01/10/2013
• Est. Priority Date: 03/24/2010
• 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 9,137,697 B2
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04W 16/18 Network planning tools
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states

Abstract

Provided are a method and apparatus for performing logged measurement in a wireless communication system. A terminal receives measurement setup and a terminal selection parameter from a base station. The terminal determines whether to apply the measurement setup on the basis of the terminal selection parameter. If it is determined that the measurement setup is to be applied, the terminal performs measurement logging on the basis of the measurement setup.

Claims

1. A method of performing logged measurement in a wireless communication system, the method comprising:

receiving, by a user equipment (UE), a measurement configuration from a Base Station (BS);

receiving, by the UE, a UE selection parameter from the BS;

determining, by the UE, whether or not to apply the measurement configuration based on the UE selection parameter; and

logging, by the UE, measurement based on the measurement configuration if it is determined to apply the measurement configuration.

2. The method of claim 1, wherein the UE operates in Radio Resource Control (RRC) idle mode.

3. The method of claim 2, wherein the measurement configuration is a Minimization of Driving Tests (MDT) configuration for MDT measurement.

4. The method of claim 3, further comprising:

starting a validity timer if it is determined to apply the measurement configuration,

wherein while the validity timer operates, the UE in the RRC idle mode logs measurement based on the MDT configuration in order to collect logged measurement.

5. The method of claim 4, further comprising:

discarding the MDT configuration and maintaining the logged measurement when the validity timer expires.

6. The method of claim 5, further comprising:

entering, by the UE, RRC connected mode; and

sending, by the UE in the RRC connected mode, a logging indicator, indicating an availability of the logged measurement, to the BS.

7. The method of claim 6, further comprising the steps of:

the UE receiving an information request, requesting the logged measurement, from the BS; and

the UE sending an information response, sending the logged measurement, to the BS.

8. The method of claim 1, wherein the UE selection parameter comprises an identifier of the UE or an identifier of a UE group to which the measurement configuration will be applied.

9. The method of claim 1, wherein the UE selection parameter is broadcasted from the BS.

10. The method of claim 9, wherein the measurement configuration is broadcasted from the BS.

11. An apparatus for performing logged measurement in a wireless communication system,

a Radio Frequency (RF) unit that transmits and receives radio signals;

and

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

receive a measurement configuration from a Base Station (BS);

receive a UE selection parameter from the BS;

determine whether or not to apply the measurement configuration based on the UE selection parameter; and

log measurement based on the measurement configuration if it is determined to apply the measurement configuration.

12. The apparatus of claim 11, wherein the processor is configured to operates in Radio Resource Control (RRC) idle mode.

13. The apparatus of claim 12, wherein the measurement configuration is a Minimization of Driving Tests (MDT) configuration for MDT measurement.

14. A method of performing measurement in a wireless communication system, the method comprising:

receiving, by a user equipment (UE), a measurement configuration from a Base Station (BS);

receiving, by the UE, a Radio Resource Control (RRC) mode indicator, indicating RRC mode to which the measurement configuration is applied, from the BS; and

performing, by the UE, measurement using the measurement configuration in RRC mode indicated by the RRC mode indicator.

15. The method of claim 14, wherein the RRC mode indicator indicates any one of RRC idle mode, RRC connected mode, and both the RRC idle mode and the RRC connected mode.