Radio communication system, server, and radio communication method

A server comprising:

• a processor to
• receive, together with an identifier for identifying a base station, communication information transmitted from a plurality of mobile stations via the base station,
• extract, for the base station, a keyword frequently used in communications between the network server and the plurality of mobile stations on the basis of the received communication information and the received identifier, and
• transmit the extracted keyword together with the identifier to another server to request the another server to distribute distribution information corresponding to the keyword to the plurality of mobile stations via a gateway server and the base station.

A radio communication method executed by a radio communication system including a network server and a second server, the radio communication method comprising:

• receiving, by the network server, communication information together with an identifier for identifying a base station, the communication information being transmitted from a plurality of mobile stations via the base station;
• extracting for the base station, by the network server, a keyword frequently used in communications between the network server and the plurality of mobile stations on the basis of the received communication information and the received identifier;
• transmitting, by the network server, the extracted keyword together with the identifier to the second server;
• receiving together with the identifier, by the second server, the keyword transmitted from the network server;
• and
• distributing distribution information corresponding to the received keyword to the plurality of mobile stations via a gateway server and the base station.