Design method for radio frequency automatic power control module of TD-SCDMA terminal and its circuit
A technology of automatic power control and design method, applied in power management, transmission control/balance, electrical components, etc., can solve problems such as interference, power value rushing out of the time template box, etc.
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[0019] Figure 4 is an automatic power control PvT block diagram of a specific embodiment of the design method of the present invention. In the figure, 1 is the time module frame, 2 is the power control curve, 3 is the duration after the transmission power is maximized, and 4 is the user terminal location. The required transmit power value, 5 is the step length, and 6 is the power value that is increased or decreased for each step adjustment. In this example, the order of the order register (APC_STEP_COUNTER) is 3, that is, it is necessary to gradually increase the transmit power of the user terminal through three steps to reach the required power value. The specific process is: when APC_FLAG changes from 0 to 1, the APC module sends data STEP1, and after the time length of the step (APC_STEP_LENGTH), the APC module sends the data STEP2, and then after the time of the step (APC_STEP_LENGTH), The APC module sends data STEP3. After ABB receives these data in turn, it controls the RF ...
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