A radio frequency tuning method, terminal and radio frequency front-end device
A radio frequency front-end and radio frequency tuning technology, applied in the field of radio frequency tuning, can solve the problems of increasing cost, limited area used by radio frequency front-end devices, and increasing the complexity of printed circuit board design by devices, so as to save costs and reduce circuit design complexity. , the effect of reducing the number of
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Embodiment 1
[0046] figure 1 It is a schematic diagram of the implementation flow of the radio frequency tuning method in the embodiment of the present invention, such as figure 1 As shown, the method includes:
[0047] Step 101: Obtain a first control instruction for controlling the radio frequency front-end device to work in the first working frequency band;
[0048] Specifically, after the terminal automatically starts the frequency scanning operation after it is turned on, the terminal automatically starts the frequency scanning operation periodically, or the user of the terminal starts the frequency scanning operation through the set operation interface, if the terminal detects a trigger instruction for frequency scanning, according to the protocol Sorting the use priority levels of different working frequency bands in the stack, and obtaining the first control instruction corresponding to the first working frequency band of the first use priority level, the first control instruction...
Embodiment 2
[0107] image 3 It is a schematic diagram of the implementation flow of the radio frequency tuning method in the embodiment of the present invention, such as image 3 As shown, the method includes:
[0108] Step 201: Receive a first control instruction to make the radio frequency front-end device work in the first working frequency band;
[0109] Specifically, the terminal automatically starts the frequency scanning operation after it is turned on, the terminal automatically starts the frequency scanning operation periodically, or the user of the terminal starts the frequency scanning operation through the set operation interface. When the terminal detects the trigger command of the frequency scanning, it obtains the first The first control command corresponding to the working frequency band, the first control command is used to control the radio frequency front-end device to work in the first working frequency band, and send the first control command to the radio frequency f...
Embodiment 3
[0133] The present invention will be further described through a specific example below.
[0134] Figure 5 It is a schematic diagram of the composition and structure of the terminal according to the embodiment of the present invention, such as Figure 5 As shown, the terminal includes a processor 31 , a radio frequency front-end device 32 , and a memory 33 ;
[0135] Here, the radio frequency antenna 321, the radio frequency front end 322, and the radio frequency transceiver chip 323 include a coupler for outputting return loss values when operating in different operating frequency bands; the radio frequency front end 322 includes a power amplifier, a surface acoustic filter Devices, duplexers, etc.
[0136] Here, the control instructions corresponding to the radio frequency front-end device 32 in different operating frequency bands are pre-stored in the memory 33, that is, the control instructions corresponding to the radio frequency antenna 321, the radio frequency fron...
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