Communication terminal device and communication method

A communication terminal apparatus comprising:

• an access point (AP) operation section configured to connect to a communication party to perform short-range radio communication and to relay data transmission between the communication party and a connection destination of the communication party in place of an access point;
• an electric field intensity acquiring section configured to measure an electric field intensity of a signal received from the access point;
• a client disconnecting section configured to determines whether the communication party is located in a communication area of the access point based on the electric field intensity measured by the electric field intensity acquiring section, and to disconnect the connection with the communication party in the AP operation section if having determined that the communication party is located in the communication area;
• a communication monitoring section configured to monitor an communication status between the communication party and the access point;
• and
• an access point (AP) operation controlling section configured to control an operation of the AP operation section based on the communication status.

A communicating method in a communication terminal apparatus configured to operate as an access point, the method comprising:

• a relay step of connecting to a communication party to perform short-range radio communication and relaying data transmission between the communication party and a connection destination of the communication party in place of an access point;
• a measuring step of measuring an electric field intensity of a signal received from the access point;
• a determining step of determining whether the communication party is located in a communication area of the access point based on the measured electric field intensity;
• a disconnecting step of disconnecting the connection with the communication party if the determining step determines that the communication party is located in the communication area;
• a monitoring step of monitoring a communication status between the communication party and the access point;
• and
• a controlling step of controlling an operation of the relay step based on the communication status.