A wireless communication method comprising: transmitting (S204; S302; S405; S504) first information from a wireless base station to a first wireless terminal and a second wireless terminal; and the wireless communication method characterized in: transmitting (S205; S303; S406; S505) second information from the wireless base station to the first wireless terminal and the second wireless terminal, wherein the first information and the second information are transmitted within the same wireless signal; receiving the first information by each of the first wireless terminal and the second wireless terminal, the first information being used by the first wireless terminal for transmitting (S206; S305; S408; S507) a first reference signal, and being used by the second wireless terminal for receiving the first reference signal; receiving the second information by each of the first wireless terminal and the second wireless terminal, the second information being used by the second wireless terminal for transmitting (S207; S306; S409; S508) a second reference signal, and being used by the first wireless terminal for receiving the second reference signal; transmitting (S208; S307; S410; S509) third information from the second wireless terminal to the wireless base station, the third information relating to a first wireless quality from the first wireless terminal to the second wireless terminal, the first wireless quality being measured by the second wireless terminal based on the first reference signal transmitted from the first wireless terminal; transmitting (S209; S308; S411; S510) fourth information from the first wireless terminal to the wireless base station, the fourth information relating to a second wireless quality from the second wireless terminal to the first wireless terminal, the second wireless quality being measured by the first wireless terminal based on the second reference signal transmitted from the second wireless terminal; and determining (S210; S309; S412), by the wireless base station, whether device-to-device communication is to be performed between the first wireless terminal and the second wireless terminal based on the third information and the fourth information. transmitting (S205; S303; S406; S505) second information from the wireless base station to the first wireless terminal and the second wireless terminal, wherein the first information and the second information are transmitted within the same wireless signal; receiving the first information by each of the first wireless terminal and the second wireless terminal, the first information being used by the first wireless terminal for transmitting (S206; S305; S408; S507) a first reference signal, and being used by the second wireless terminal for receiving the first reference signal; receiving the second information by each of the first wireless terminal and the second wireless terminal, the second information being used by the second wireless terminal for transmitting (S207; S306; S409; S508) a second reference signal, and being used by the first wireless terminal for receiving the second reference signal; transmitting (S208; S307; S410; S509) third information from the second wireless terminal to the wireless base station, the third information relating to a first wireless quality from the first wireless terminal to the second wireless terminal, the first wireless quality being measured by the second wireless terminal based on the first reference signal transmitted from the first wireless terminal; transmitting (S209; S308; S411; S510) fourth information from the first wireless terminal to the wireless base station, the fourth information relating to a second wireless quality from the second wireless terminal to the first wireless terminal, the second wireless quality being measured by the first wireless terminal based on the second reference signal transmitted from the second wireless terminal; and determining (S210; S309; S412), by the wireless base station, whether device-to-device communication is to be performed between the first wireless terminal and the second wireless terminal based on the third information and the fourth information.