PROBLEM TO BE SOLVED: To provide a wireless terminal capable of determining which communication environment of its own terminal or a communication partner terminal is deteriorated when received data of its own terminal are not correct. SOLUTION: The wireless terminal includes: an antenna section 1 for receiving a wireless signal; an RF section 2 for converting the wireless signal into a baseband signal; a baseband processing section 3 for detecting errors when decoding the baseband signal to produce coded data; a multimedia processing section 4 for detecting errors when decoding the coded data to produce received data; and a communication quality determination section 5 for determining that uplink communication quality of the communication partner terminal is deteriorated on the basis of a result of the error detection by the multimedia processing section 4. COPYRIGHT: (C)2007,JPO&INPIT