| 摘要 |
<p>A power calculation unit (105) calculates power of a transmission signal which has passed through transmission frame creation units (101a to 101c), modulation units (102a to 102c), spread units (103a to 103c), and a multiplexing unit (104). A burst signal detection unit (106) detects a burst signal from this power. When the burst signal is detected, a gain calculation unit (107) outputs a predetermined gain. An attenuation amount calculation unit (108) calculates an attenuation amount according to the gain calculated by the gain calculation unit (107). A transmission signal is subjected to multiplication by the aforementioned gain in a gain multiplication unit (109), a predetermined radio processing in a transmission radio unit (110), and attenuation processing by the aforementioned attenuation amount in an a attenuation unit (111) before transmitted from an antenna (112). Thus, it is possible to suppress excessive gain switching operation and suppress deterioration of the modulation accuracy and deterioration of adjacent channel leak power attenuation ratio.</p> |
