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NFC-SIM system, control method and mobile terminal

A communication terminal and microprocessor technology, applied in the field of communication, can solve the problems that other devices cannot stably identify the NFC signal, the NFC-SIM chip cannot stably identify the terminal device, and the signal strength is affected.

Active Publication Date: 2021-05-14
四川科道芯国智能技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of communication technology, the use of NFC-SIM chips has become more common in mobile terminals, and the NFC-SIM chips in mobile terminals often have insufficient signal strength, and other devices cannot stably recognize NFC signals
Moreover, the existing methods for amplifying NFC signals often affect the signal strength of similar signals such as Bluetooth signals, 4G signals, and 5G signals due to the amplification of NFC signals.
[0003] Therefore, there is a problem that the existing NFC-SIM chip cannot be stably recognized by the terminal device

Method used

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  • NFC-SIM system, control method and mobile terminal
  • NFC-SIM system, control method and mobile terminal
  • NFC-SIM system, control method and mobile terminal

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specific Embodiment approach

[0065] refer to image 3 , according to a specific implementation of the present disclosure, the NFC antenna module 140 includes an active NFC antenna 142 and an NFC chip 141;

[0066] The microprocessor 110 is electrically connected to the NFC chip 141;

[0067] The active NFC antenna 142 is electrically connected to the NFC chip 141;

[0068] The active NFC antenna 142 is used to send the NFC magnetic flux signal and receive the communication signal in the magnetic field, and the NFC chip 141 is used to receive the communication data sent back by the active NFC antenna 142 .

[0069] Specifically, such as image 3 As shown, the active NFC antenna 142 is electrically connected to the NFC chip 141 through the RXN pin and the RXP pin, and the NFC chip 141 is connected to the NFC chip 141 through the 5729RST_POR pin, 5729IRQ pin, 5729CLK pin and 5729DIO pin The microprocessor 110 is electrically connected, so that the NFC chip 141 can receive the magnetic field communication ...

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Abstract

The embodiment of the invention discloses an NFC-SIM system, a control method and a mobile terminal. When a user uses an NFC function, a microprocessor sends preset NFC label information to an NFC antenna module, so that the NFC antenna module sends a magnetic flux signal to form a communication magnetic field with a receiving terminal. After the microprocessor receives magnetic field communication information returned by the NFC antenna module, the microprocessor sends a high level signal to the control end of the analog switch to enable the analog switch to be switched on, the signal amplifier starts to work, an NFC magnetic flux signal sent by the NFC antenna module is amplified, and the NFC antenna module sends the amplified NFC magnetic flux signal to the control end of the analog switch; therefore, the signal strength can be ensured to be stable connection with the receiving terminal. And after the NFC communication is completed, the microprocessor controls the analog switch to be turned off, so that the signal amplifier stops working, and the coupling effect between the signal amplifier and the NFC antenna module is prevented from influencing the connection of other communication signals of the mobile equipment.

Description

technical field [0001] The present invention relates to the communication field, in particular to an NFC-SIM system, a control method and a mobile terminal. Background technique [0002] With the continuous development of communication technology, the use of NFC-SIM chips has become more common in mobile terminals, and the NFC-SIM chips in mobile terminals often have insufficient signal strength, and other devices cannot stably recognize NFC signals. Moreover, the existing methods for amplifying NFC signals often affect the signal strength of similar signals such as Bluetooth signals, 4G signals, and 5G signals due to the amplification of NFC signals. [0003] Therefore, there is a problem that the existing NFC-SIM chip cannot be stably recognized by the terminal device. Contents of the invention [0004] In order to solve the above technical problems, embodiments of the present disclosure provide an NFC-SIM system, a control method, and a mobile terminal, and the specifi...

Claims

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Application Information

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IPC IPC(8): H04B1/3816H04B1/401H04B5/00
CPCH04B1/401H04B1/3816H04B5/70H04B5/26
Inventor 朱琳琳吴建川
Owner 四川科道芯国智能技术股份有限公司
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