RADIO TRANSMISSION DEVICE AND RADIO TRANSMISSION METHOD

摘要

A power calculation section (105) calculates the power of a transmit signal that has passed through transmit frame generation sections (101a through 101c), modulation sections (102a through 102c), spreading sections (103a through 103c), and a multiplexing section (104). A burst signal detection section (106) detects a burst signal fromthispower. Againcalculationsection (107) outputs fixed gain when a burst signal is detected. An attenuation amount calculation section (108) calculates an attenuation amount based on the gain calculated by the gain calculation section (107). The transmit signal is subjected to multiplication by the aforementioned gain in a gain multiplication section (109), predetermined radio processing in a transmitting radio section (110), and attenuation processing in accordance with the aforementioned attenuation amount in an attenuation section (111), and is transmitted from an antenna (112). By this means, it is possible to suppress excessive gain switching operations, and suppress modulation precision degradation and adjacent channel leakage power ratio degradation.