Wireless communication device and power controller using multi-channel feedback technology
A technology of wireless communication device and power controller, applied in wireless communication, power management, electrical components and other directions, can solve the problem of affecting the quality of single-ended signals, the accuracy and anti-interference ability of single-channel power feedback signals are difficult to be guaranteed, and the output power not accurate enough
Active Publication Date: 2019-09-13
WISTRON NEWEB +1
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[0003] However, in practical applications, the accuracy and anti-interference ability of the single-channel power feedback signal are difficult to be guaranteed. The main reason is that the single-channel power feedback technology cannot predict the influence of the transmission path loss of the single-channel power feedback signal on the signal, resulting in The calculated output power is not accurate enough
Since the single-ended signal is the level difference between the signal transmitted on a single wire and the reference plane, the single-ended signal is affected by the reference plane, and the quality of the single-ended signal will be affected when the reference plane suffers from noise interference.
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[0038] Please refer to figure 1 , which is a functional block diagram of a wireless communication device 1 according to the first embodiment of the present invention. The wireless communication device 1 includes a power controller 10 , a radio frequency transceiver 11 , a power amplifier 12 , a duplexer 13 , a coupler 14 and an antenna 15 .
[0039] Structurally, the antenna 15 is coupled to the coupler 14 and the power controller 10 for transmitting a transmit signal TX_sig and receiving a receive signal RX_sig. The coupler 14 is coupled to the antenna 15 , the duplexer 13 and the power controller 10 for coupling and collecting a part of the transmitted signal TX_sig to generate power feedback signals PDET_1 and PDET_2 to the power controller 10 . The duplexer 13 is coupled to the coupler 14 , the power amplifier 12 and the radio frequency transceiver 11 , and is used to realize the simultaneous operation of the antenna 15 for transmitting and receiving. The power amplifier...
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The invention discloses a wireless communication device and a power controller employing a multi-channel feedback technology. The wireless communication device is used for precisely controlling the output power of a transmitted signal, and comprises a power controller used for generating a monitoring output power according to a first t power feedback signal and a second power feedback signal, and a radio frequency transceiver coupled to the power controller and used for generating an output signal to a power amplifier, adjusting the output power of the output signal according to the monitoring output power output by the power controller and generating a control signal to the power amplifier to adjust the working mode of the power amplifier so as to adjust the output power of the transmitted signal.
Description
technical field [0001] The invention discloses a power controller and a wireless communication device adopting multi-channel feedback technology, which are used to precisely control the output power of a transmission signal. Background technique [0002] In the prior art, the output power monitoring mechanism of the wireless signal generally adopts a single-channel feedback form. Specifically, a coupler (coupler) can be set on the transmission path of the antenna, and a part of the wireless signal is coupled through the coupler to generate a single-end power feedback signal and send it back to the wireless transceiver end, and then according to The single power feedback signal is used to calculate the output power, so as to determine to increase, decrease or maintain the output power of the wireless transceiver and at the same time control the working mode of the power amplifier to achieve the purpose of controlling the output power. [0003] However, in practical applicati...
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IPC IPC(8): H04W52/14
Inventor 范杰臧建国
Owner WISTRON NEWEB