A method of wireless transmission applicable to transmission between a first communication terminal and a second transmission terminal is provided. The first communication terminal transmits data via a first channel selected as a primary transmission channel. The transmission quality of the primary transmission channel is detected. When it is determined that the quality of the primary transmission channel degrades, a third channel replaces the first channel as the primary transmission channel, and a replacement request is sent from the first communication terminal via a second channel. The first communication channel then transmits data via the third channel as the primary transmission channel.