EFFECTIVE SYSTEM INFORMATION RECEPTION METHOD

• US 20080318566A1
• Filed: 06/20/2008
• Published: 12/25/2008
• Est. Priority Date: 06/20/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yi, Seung-June, Park, Sung-Jun, Lee, Young-Dae, Chun, Sung-Duck
• Granted Patent: US 8,190,144 B2
• Time in Patent Office: Days
• US Class Current: 455/422.1
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information

Abstract

Disclosed is the method for informing, by a wireless communication system, to a terminal about information required for reception when the terminal is connected to the wireless communication system, in which a base station updates system information according to a preset period, and the terminal efficiently receives or checks any update of the system information based on the period.

Claims

1. A method of receiving system information for an uplink access in a wireless communication system, the method comprising:

receiving the system information and period information related to a modification of the system information;

determining whether or not the system information needs to be modified; and

receiving updated system information according to the period information if the system information is determined to be modified.

2. The method of receiving system information of claim 1, wherein the period information comprises at least one of a starting point of a modification period, an ending point of the modification period or total time duration (period) of the modification period.

3. The method of receiving system information of claim 1, wherein the period information indicates a minimum period in which the system information can be modified.

4. The method of receiving system information of claim 1, wherein the period information indicates a minimum period in which a base station can change the system information.

5. The method of receiving system information of claim 1, wherein the period information indicates a minimum time in which the base station should wait for the next updated system information after changing the system information.

6. The method of receiving system information of claim 1, wherein the period information indicates a maximum period in which the terminal checks whether or not the system information has been modified.

7. The method of receiving system information of claim 1, wherein the period information indicates a starting time to receive the modified system information.

8. The method of receiving system information of claim 1, wherein, when the period information is received in a certain modification period, the modified system information is also received in the certain modification period.

9. The method of receiving system information of claim 1, wherein, when the period information is received in a certain modification period, the modified system information is received in another modification period, other than the certain modification period.

10. The method of receiving system information of claim 1, wherein, when the period information is received in a certain modification period, the modified system information is received in the next modification period after the certain modification period.

11. A method of transmitting system information for an uplink access in a wireless communication system, the method comprising:

transmitting the system information and period information related to a modification of the system information;

notifying whether or not the system information needs to be modified; and

transmitting updated system information according to the period information if the system information is determined to be modified.

12. The method of transmitting system information of claim 11, wherein the period information comprises at least one of a starting point of a modification period, an ending point of the modification period or total time duration (period) of the modification period.

13. The method of transmitting system information of claim 11, wherein the period information indicates a minimum period in which the system information can be modified.

14. The method of transmitting system information of claim 11, wherein the period information indicates a minimum period in which a base station can change the system information.

15. The method of transmitting system information of claim 11, wherein the period information indicates a minimum time in which the base station should wait for the next updated system information after changing the system information.

16. The method of transmitting system information of claim 11, wherein the period information indicates a maximum period in which the terminal checks whether or not the system information has been modified.

17. The method of transmitting system information of claim 11, wherein the period information indicates a starting time to transmit the modified system information.

18. The method of transmitting system information of claim 11, wherein, when the period information is transmitted in a certain modification period, the modified system information is also transmitted in the certain modification period.

19. The method of transmitting system information of claim 11, wherein, when the period information is transmitted in a certain modification period, the modified system information is transmitted in another modification period, other than the certain modification period.

20. The method of transmitting system information of claim 11, wherein, when the period information is transmitted in a certain modification period, the modified system information is transmitted in the next modification period after the certain modification period.