Method of receiving a disaster warning message in mobile communication system

1. A method of receiving a warning message in mobile communication system, the method comprising:

monitoring a physical downlink control channel (PDCCH);

receiving a specific Radio Network Temporary Identifier (RNTI) through the PDCCH;

decoding the received specific RNTI on the PDCCH,

wherein the specific RNTI is a System Information-RNTI (SI-RNTI), and

wherein a time-domain scheduling is acquired from the decoded SI-RNTI;

receiving system information through a downlink shared channel (DL-SCH) using the RNTI; and

receiving the warning message based on the received system information,

wherein the warning message is an Earthquake and Tsunami Warning System (ETWS) message,

wherein the ETWS message is divided into a primary ETWS notification and a secondary ETWS notification, and

wherein the primary ETWS notification is contained in a system information block (SIB) type 10 and the secondary ETWS notification is contained in a system information block (SIB) type 11 .

2. The method of claim 1 , wherein PDCCH is periodically monitored for a time period for broadcasting the warning message.

3. The method of claim 1 , wherein the received system information contains the primary ETWS notification and the secondary ETWS notification.

4. The method of claim 3 , wherein the primary ETWS notification is firstly received before a reception of the secondary ETWS notification.

5. The method of claim 1 , wherein the system information is transmitted by a network within periodically occurring time domain windows.

6. The method of claim 5 , wherein the time domain windows is system information windows (SI-windows).

7. The method of claim 6 , wherein the DL-SCH is received from a start of the SI-windows to an end of the SI-windows.

8. The method of claim 6 , wherein the DL-SCH is received until the system information is received.