Wireless terminal device and method of establishing communication connection with an access point

A wireless terminal device for communicating with one of a plurality of base stations, comprising:

• a detector for generating at least one probe request to detect at least one of a plurality of channels communicating the wireless terminal device with the plurality of base stations;
• a transceiver for transferring the at least one probe request to and receiving signals from the plurality of base stations, the received signals comprising data packets and beacons;
• an analyzer for analyzing the received signals to obtain workload indices and received signal strength indications (RSSIs) of the plurality of base stations at the wireless terminal device as analysis result;
• an execution module configured for generating a comprehensive index for each of the plurality of base stations according to the analysis result, thus generating comprehensive indices of the plurality of base stations, and for finding a best comprehensive index from the generated comprehensive indices of the plurality of base stations;
• and
• a connection module configured for establishing wireless communication between the wireless terminal device and the base station corresponding to the best comprehensive index.