METHOD OF LOGGING MEASUREMENT RESULT AT HANDOVER FAILURE IN WIRELESS COMMUNICATION SYSTEM

• US 20120064886A1
• Filed: 06/25/2010
• Published: 03/15/2012
• Est. Priority Date: 06/26/2009
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Jung, Sunghoon, Yi, Seungjune, Chun, Sungduck, Park, Sungjun, Kim, Sunhee
• Granted Patent: US 8,880,078 B2
• Time in Patent Office: Days
• US Class Current: 455/423
• CPC Class Codes: H04W 16/18 Network planning tools
• CPC Class Codes: H04W 24/04 Arrangements for maintaining operational condition
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 36/0094 Definition of hand-off measurement parameters

Abstract

Disclosed is related to a wireless communication system and a mobile terminal providing a wireless communication service and to a method by which a base station and a mobile terminal transmit and receive data in an evolved universal mobile telecommunications system (E-UMTS) evolved from universal mobile telecommunications system (UMTS), a long term evolution (LTE) system, or a LTE-advanced (LTE-A) system and more particularly, to a method of logging a measurement result at a handover failure.

Claims

1. A method of transmitting a measurement result at a handover failure in a wireless communication system, the method comprising:

receiving, from a first network, a measurement configuration (MDT configuration) to be used at detecting the handover failure;

detecting the handover failure;

storing a measurement result if the handover failure is detected; and

transmitting the stored measurement result to a second network.

2. The method of claim 1, wherein the measurement configuration is received in a RRC connected mode.

3. The method of claim 1, wherein the measurement configuration is a minimization driving test (MDT) configuration.

4. The method of claim 1, wherein the handover failure is detected when a dedicated resource of a target network is not configured during a certain time period.

5. The method of claim 1, wherein the stored measurement result is a measured value at the handover failure is detected.

6. The method of claim 1, wherein the stored measurement result is a most recently measured value before the handover failure is detected.

7. The method of claim 1, wherein the first network is same as the second network.

8. The method of claim 1, wherein the handover failure is detected if a terminal does not find a target network node for certain time period.