Method, device and system for sending and receiving messages

A method for receiving a message, comprising:

• acquiring, by an evolved Node B (eNB), a serial number in a system message;
• and
• sending an Earthquake and Tsunami Warning System (ETWS) message carried in a system message to a User Equipment (UE) if the serial number is different from the received serial number.

A User Equipment (UE), comprising:

• an executing unit configured to acquire an area identifier carried by a system message of a neighboring cell B to which the UE is handed over or reselected, wherein the area identifier indicates an area that covers the cell B;
• and
• an acquiring unit configured to acquire an Earthquake and Tsunami Warning System (ETWS) message carried in the system message if the area identifier is different from the area identifier stored by the UE.

An evolved Node B (eNB), comprising:

• an operating unit configured to acquire a serial number in a system message;
• and
• a sending unit configured to send an Earthquake and Tsunami Warning System (ETWS) message carried in the system message if the serial number is different from the received serial number.