Message broadcast system, base station and method for message broadcast

A base station for broadcasting messages to user devices that perform radio communications based on LTE, the base station comprising:

• a message identifier information obtaining unit configured to obtain message identifier information included in a message from a cell broadcast center;
• a second table associating the message identifier information with a priority for controlling the order of messages to be broadcasted,
• a priority obtaining unit configured to obtain the priority from the second table, the priority corresponding to the message identifier information obtained by the message identifier information obtaining unit, and
• a broadcast controlling unit configured to control the order of messages to be broadcasted based on the priority obtained by the priority obtaining unit.

A message broadcast method in a message broadcast system for broadcasting messages to user devices that perform radio communications based on LTE, the message broadcast system comprising a cell broadcast center and a base station, the message broadcast method comprising:

• as steps performed by the cell broadcast center,
• a sender identifier obtaining step of obtaining a sender identifier of a message broadcast request from the message broadcast request,
• a message identifier information selecting step of selecting message identifier information, corresponding to the sender identifier obtained by the sender identifier obtaining step, from a first table associating the sender identifier of the message broadcast request with message identifier information that is used for identifying a message to be added to the message and that is corresponding to a priority for controlling the order of messages to be broadcasted from the base station,
• a message generating step of generating a message including the message identifier information selected by the message identifier selecting step, and
• a transmission step of transmitting the message, generated by the message generating step, to the base station;
• and
• as steps performed by the base station,
• a message identifier obtaining step of obtaining message identifier information included in the message from the cell broadcast center,
• a priority obtaining step of obtaining, from a second table associating the message identifier information with the priority for controlling the order of messages to be broadcasted, a priority that corresponds to the message identifier information obtained by the message identifier information obtaining step, and
• a broadcast controlling step of controlling the order of broadcast messages based on the priority obtained by the priority obtaining step.