Connection request for base stations that use the same frequency in the same coverage area

A core network apparatus that is connected to a first base station apparatus and a second base station apparatus, the first base station apparatus being configured to perform data communication with a first communication apparatus by using a predetermined frequency band, the second base station apparatus being configured to perform data communication with a second communication apparatus by using the same frequency band as the frequency band of the first base station apparatus in a coverage area identical with the coverage area of the first base station apparatus, the core network apparatus comprising:

• a determination unit that acquires identification information included in a connection request transmitted from the first or second communication apparatus by using the frequency band, and determines to connect to the first base station apparatus when the identification information indicates the first communication apparatus, and to connect to the second base station apparatus when the identification information indicates the second communication apparatus,
• wherein the identification information is a communication apparatus identifier for identifying the first and second communication apparatuses, and
• wherein a service quality required for communication between the second base station apparatus and the second communication apparatus is lower than a service quality required for communication between the first base station apparatus and the second communication apparatus.

A data communication method that performs data communication with a second communication apparatus by using a frequency band identical with a frequency band used in a first base station that performs data communication with a first communication apparatus, in a coverage area identical with the coverage area of the first base station, the method comprising:

• acquiring, from the first or second communication apparatus, identification information included in a connection request transmitted using the frequency band;
• and
• disconnecting from the first communication apparatus when the identification information indicates the first communication apparatus, and connecting to the second communication apparatus when the identification information indicates the second communication apparatus,
• wherein the identification information is a communication apparatus identifier for identifying the first and second communication apparatuses, and
• wherein a service quality required for communication between the second base station apparatus and the second communication apparatus is lower than a service quality required for communication between the first base station apparatus and the second communication apparatus.