Apparatus and method of performing measurements logging in wireless communication system

• US 8,219,127 B2
• Filed: 04/08/2011
• Issued: 07/10/2012
• Est. Priority Date: 04/11/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Young Dae, Jung, Sung Hoon, Yi, Seung June, Chun, Sung Duck, Park, Sung Jun
• Primary Examiner(s): DOAN, PHUOC HUU
• Application Number:
  US13/082,619
• Publication Number:
  US 20110250910A1
• Time in Patent Office: 459 Days
• Field of Search: 455/466, 455/418, 455/405, 455/67.11, 455/411, 455/458, 370/252, 370/329, 370/328, 370/230, 709/224
• US Class Current: 455/466
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports

Abstract

A method and apparatus for performing measurements logging in a mobile communications system is provided. An user equipment receives a first measurement configuration message including a first measurement configuration and receives a second measurement configuration message. The user equipment discards the first measurement configuration upon receiving the second measurement configuration message.

Claims

1. A user equipment (UE) configured to perform measurements logging in a mobile communications system, comprising:

a transceiver configured to transmit and receive data; and

a controller operatively connected to the transceiver and configured to;

receive a first measurement configuration message including a first measurement configuration,

log a first measurement using the first measurement configuration while the UE is in a radio resource control (RRC) idle mode,

receive a second measurement configuration message including a second measurement configuration, and

discard the first measurement configuration upon receiving the second measurement configuration message.

2. The UE of claim 1, wherein the controller is configured to discard the logged first measurement upon receiving the second measurement configuration message.

3. The UE of claim 2, wherein the first measurement configuration and the second measurement configuration are for a Minimization of Drive Test (MDT).

4. The UE of claim 1, wherein the controller is further configured to

store the first measurement configuration in the first measurement configuration message.

5. The UE of claim 4, wherein the controller is further configured to log a second measurement using the second measurement configuration in the second measurement configuration message while the UE is in the radio resource control (RRC) idle mode.

6. The UE of claim 1, wherein the first measurement configuration includes at least one of

a logging interval indicating a periodicity for storing a measurement result,

a reference time indicating when to send a logged measurement report, and

an area configuration indicating an area for performing measurement logging.

7. The UE of claim 1,

wherein the controller is further configured to store the second measurement configuration in the second configuration message.

8. The UE of claim 7, wherein the second measurement configuration includes at least one of

a logging interval indicating a periodicity for storing a measurement result,

a reference time indicating when to send a logged measurement report, and

an area configuration indicating an area for performing measurement logging.

9. The UE of claim 1,

wherein the controller is configured to receive the first measurement configuration message in a first RRC connected mode and receive the second measurement configuration message in a second RRC connected mode,

wherein the first RRC connected mode corresponds to a RRC connection between the UE and a first cell of the mobile communications system, and

wherein the second RRC connected mode corresponds to a RRC connection between the UE and a second cell of the mobile communications system.

10. A method for performing measurements logging by a user equipment (UE) in a mobile communications system, the method comprising:

receiving, by the UE, a first measurement configuration message including a first measurement configuration;

logging, by the UE, a first measurement using the first measurement configuration while the UE is in a radio resource control (RRC) idle mode;

receiving, by the UE, a second measurement configuration message including a second measurement configuration; and

discarding, by the UE, the first measurement configuration upon receiving the second measurement configuration message.

11. The method of claim 10, further comprising:

discarding, by the UE, the logged first measurement upon receiving the second measurement configuration message.

12. The method of claim 11, wherein the first measurement configuration and the second measurement configuration are for a Minimization of Drive Test (MDT).

13. The method of claim 10, further comprising:

storing, by the UE, the first measurement configuration in the first measurement configuration message.

14. The method of claim 13, further comprising:

logging, by the UE, a second measurement using the second measurement configuration in the second measurement configuration message while the UE is in the RRC idle mode.

15. The method of claim 10, wherein the first measurement configuration includes at least one of

a logging interval indicating a periodicity for storing a measurement result,

a reference time indicating when to send a logged measurement report, and

an area configuration indicating an area for performing measurement logging.

16. The method of claim 10, further comprising:

storing, by the UE, the second measurement configuration in the second configuration message.

17. The method of claim 16, wherein the second measurement configuration includes at least one of

a logging interval indicating a periodicity for storing a measurement result,

a reference time indicating when to send a logged measurement report, and

an area configuration indicating an area for performing measurement logging.

18. The method of claim 10,

wherein the step of receiving the first measurement configuration message includes receiving the first measurement configuration message in a first radio RRC connected mode,

wherein the step of receiving the second measurement configuration message includes receiving the second measurement configuration message in a second RRC connected mode,

wherein the first RRC connected mode corresponds to a RRC connection between the UE and a first cell of the mobile communications system, and

wherein the second RRC connected mode corresponds to a RRC connection between the UE and a second cell of the mobile communications system.