Method of Transmitting Measurement Report in Wireless Communication System

• US 20100330921A1
• Filed: 06/23/2010
• Published: 12/30/2010
• Est. Priority Date: 06/24/2009
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: PARK, Sung Jun, YI, Seung June, CHUN, Sung Duck, JUNG, Sung-Hoon, KIM, Sunhee
• Granted Patent: US 8,478,200 B2
• Time in Patent Office: Days
• US Class Current: 455/67.11
• CPC Class Codes: H04B 17/24 with feedback of measurements to the transmitter
• CPC Class Codes: H04B 17/309 Measuring or estimating channel quality parameters
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]

Abstract

Disclosed is a wireless communication system and terminal for providing a wireless communication service, and more particularly, a method of transmitting a measurement log from a terminal to a network when a RRC connected terminal has not found a RRC connectable network, although a wireless dedicated channel is not allocated between the terminal and the network, in an Evolved Universal Mobile Telecommunications System (E-UMTS) evolved from a UMTS, Long Term Evolution (LTE) System or LTE-Advanced (LTE-A) system.

Claims

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

receiving, from a first network, a measurement configuration to be used at detecting an out-of-service area in a dormant state;

moving into the dormant state, wherein the dormant state is a state that a dedicated radio resource is not allocated to a radio resource control (RRC) connected mode terminal;

detecting the out-of-service area in the dormant state;

storing the measurement result if the out-of-service area is detected; and

transmitting, to a second network, the stored measurement result.

2. The method of claim 1, wherein the measurement configuration is received in a CELL_DCH state or CELL_FACH.

3. The method of claim 1, wherein the dormant state is at least one of a CELL_PCH state, a CELL_FACH state and a URA_PCH state.

4. The method of claim 1, wherein the stored measurement result is a measured value when the out-of-service area is detected.

5. The method of claim 1, wherein the stored measurement result is a most recently measured value before the out-of-service area is detected.

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

7. The method of claim 1, wherein the out-of-service area is detected if a terminal does not find a RRC connectable network for a certain time period in the dormant state.

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

9. A method of transmitting a measurement log in a wireless communication system, the method comprising:

finding a radio resource control (RRC) connectable network for a certain time period when a terminal is not allocated with a dedicated radio resource while the terminal is in a RRC connected mode;

storing the measurement log if the terminal does not find the RRC connectable network for the certain time period; and

transmitting the stored measurement log to a network.

10. The method of claim 9, wherein the radio resource control (RRC) connectable network is a RRC connectable radio network control (RNC) or a RRC connectable cell.

11. The method of claim 9, wherein the RRC connected mode is at least one of a CELL_PCH mode, a CELL_FACH mode and a URA_PCH mode.

12. The method of claim 9, wherein the stored measurement log is a measured value when the terminal does not find the RRC connectable network for the certain time period.

13. The method of claim 9, wherein the stored measurement log is a most recently measured value before the terminal does not find the RRC connectable network for the certain time period.