METHOD AND APPARATUS FOR MEASURING A CHANNEL STATE WHEN RECEIVING SYSTEM INFORMATION ON A NEIGHBORING CELL IN A WIRELESS COMMUNICATION SYSTEM

• US 20120196593A1
• Filed: 11/02/2010
• Published: 08/02/2012
• Est. Priority Date: 11/03/2009
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Jung, Sung Hoon, Chun, Sung Duck, Yi, Seung June, Lee, Young Dae, Park, Sung Jun
• Granted Patent: US 8,705,453 B2
• Time in Patent Office: Days
• US Class Current: 455/434
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 48/10 using broadcasted information

Abstract

The present invention relates to a method for receiving system information on a neighboring cell by means of a terminal in a wireless communication system, the method comprising the steps of receiving a system information read command for a neighboring cell from a serving cell over a certain period of time; ending communication with the serving cell, and reading system information from the adjacent cell; and relaying the system information to the serving cell after the certain period of time elapses, wherein a reference signal from the adjacent cell is received over the certain period of time to measure a channel state value. If the channel state value is reduced to a preset value or less, a further step may comprise ending the reading of the system information.

Claims

1. A method for receiving system information on a neighboring cell by means of a user equipment in a wireless communication system, the method comprising the steps of:

receiving a system information reading command of a neighboring cell from a serving cell for a certain time period;

suspending communication with the serving cell, and reading system information from the neighboring cell; and

reporting the system information to the serving cell after the certain time period elapses,

wherein a reference signal from the neighboring cell is received for the certain time period to measure a channel status value.

2. The method according to claim 1, further comprising the step of suspending reading of the system information if the channel status value is reduced to a preset value or less.

3. The method according to claim 2, further comprising the step of transferring a system information reading suspension indicator to the serving cell if the reading of the system information is suspended.

4. The method according to claim 2, further comprising the step of resuming communication with the serving cell if the reading of the system information is suspended.

5. The method according to claim 1, wherein the system information reading suspension indicator is transmitted to the serving cell together with the channel status value.

6. A user equipment in a wireless communication system, the user equipment comprising:

a wireless communication module for transmitting and receiving a signal to and from a serving cell and a neighboring cell; and

a processor for processing the signal,

wherein the processor, if a system information reading command of the neighboring cell is received from the serving cell for a certain time period, suspends communication with the serving cell, reads system information from the neighboring cell for the certain time period, and reports the system information to the serving cell, and

the processor receives a reference signal from the neighboring cell for the certain time period to measure a channel status value.

7. The user equipment according to claim 6, wherein the processor suspends reading of the system information if the channel status value is reduced to a preset value or less.

8. The user equipment according to claim 7, wherein the processor transfers a system information reading suspension indicator to the serving cell if the reading of the system information is suspended.

9. The user equipment according to claim 7, wherein the processor resumes communication with the serving cell if the reading of the system information is suspended.

10. The user equipment according to claim 6, wherein the system information reading suspension indicator is transmitted to the serving cell together with the channel status value.