Data volume exchange server, international communication system, data volume exchange method, and data volume exchange program

A data volume exchange method performed by a data volume exchange server including a computer, the data volume exchange method comprising:

• receiving a first exchange request from a first terminal located in a first country and receiving a second exchange request from a second terminal located in a second country, wherein the first exchange request comprises an individual identification number of the first terminal, a subscriber ID of a first subscriber using the first terminal, and the second country to be traveled by the first subscriber, a first travel period, and a first requested data volume, wherein the second exchange request comprises an individual identification number of the second terminal, a subscriber ID of a second subscriber using the second terminal, and the first country to be traveled by the second subscriber, a second travel period, and a second requested data volume, wherein the first travel period overlaps with the second travel period;
• performing matching between the first exchange request and the second exchange request based on the first subscriber travelling from the first country to the second country and the second subscriber travelling from the second country to the first country, wherein performing matching comprises determining an exchange travel period as an overlapping period between the first travel period and the second travel period, and determining an exchange data volume by selecting a smaller one between the first requested data volume and the second requested data volume;
• comparing the smaller one with a usable data volume of the first terminal in the second country or a usable data volume of the second terminal in the first country;
• determining the exchange data volume based on comparison result;
• and
• performing exchange of no more than the determined exchange data volume by the first terminal and the second terminal within the exchange travel period.

A non-transitory computer readable medium storing one or more instructions causing a computer to execute:

• receiving a first exchange request from a first terminal located in a first country and receiving a second exchange request from a second terminal located in a second country, wherein the first exchange request comprises an individual identification number of the first terminal, a subscriber ID of a first subscriber using the first terminal, and the second country to be traveled by the first subscriber, a first travel period, and a first requested data volume, wherein the second exchange request comprises an individual identification number of the second terminal, a subscriber ID of a second subscriber using the second terminal, and the first country to be traveled by the second subscriber, a second travel period, and a second requested data volume, wherein the first travel period overlaps with the second travel period;
• performing matching between the first exchange request and the second exchange request based on the first subscriber travelling from the first country to the second country and the second subscriber travelling from the second country to the first country, wherein performing matching comprises determining an exchange travel period as an overlapping period between the first travel period and the second travel period, and determining an exchange data volume by selecting a smaller one between the first requested data volume and the second requested data volume;
• comparing the smaller one with a usable data volume of the first terminal in the second country or a usable data volume of the second terminal in the first country;
• determining the exchange data volume based on comparison result;
• and
• performing exchange of no more than the determined exchange data volume by the first terminal and the second terminal within the exchange travel period.