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Method of ramping up output level of power amplifier of radio communication system,communication semiconductor integrated circuit,amp; radio communication system
Method of ramping up output level of power amplifier of radio communication system,communication semiconductor integrated circuit,amp; radio communication system
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机译:无线通信系统中功率放大器的输出电平的上升方法,通信半导体集成电路和无线通信系统
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摘要
In a radio communication system having a phase control loop for phase modulation and an amplitude control loop for amplitude modulation and being capable of time divisional transmission and reception under a predetermined time management, when transmission in a first mode is switched to transmission in a second mode or when transmission in the second mode is switched to transmission in the first mode, the output level of the power amplifier is lowered once to a predetermined level higher than the level when transmission related circuits are activated, and thereafter the output level of the power amplifier is again ramped after the settings have been changed but without starting of a transmission oscillator, establishing of the phase control loop and the amplitude control loop.
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