Wireless communication system using imitation near field communication and authentication method thereof

Abstract

The invention discloses a wireless communication system capable of simulating near field communication and an authentication method thereof. The wireless communication system is arranged in a peripheral application device for being connected with a mobile device. The wireless communication module of the wireless communication system is used for transmitting a control instruction; a radio frequency switch circuit of the wireless communication system is switched to a low-power mode or a normal power mode according to the control instruction; the radio frequency switch circuit comprises a signal attenuation unit for attenuating the frequency of a transmission signal transmitted by the wireless communication module in the low-power mode and maintaining the frequency of the transmission signal in the normal power mode. The wireless communication system can attenuate the signal frequency in the authentication phase to achieve the purpose of near field communication, and after authentication, operation of the peripheral application is executed with the help of the original wireless transmission mechanism.

Description

technical field [0001] The present invention relates to a wireless communication technology, in particular to a wireless communication system and an authentication method using simulated near field communication for performing device authentication. Background technique [0002] With the popularity of mobile devices, more and more peripheral applications (Peripheral Applications) are developed around mobile devices, and the use of high compatibility of low-power wireless communication mechanisms, such as Bluetooth, makes mobile devices do not need additional devices to communicate with peripheral applications. For example, wearable devices and smart home appliances mostly have built-in Bluetooth Low Energy (BLE) modules for users to directly control. This not only improves the convenience of use, but also The cost of hardware equipment can be reduced. [0003] When the mobile device uses the Bluetooth low energy module to control these peripheral applications, most of them ...

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Problems solved by technology

[0004] Since the two devices need to be close to each other to a certain distance to complete the authentication during near-field communication, the security is more secure than the pairing of the general wireless communication mechanism. However, the transmission frequency of near-field communication is low, and the induction coil required is relatively small. If it is integrated with other systems, it will take up part of the space, which does not meet the needs of modern electronic products; in addition, the chip of the NFC reader needs to be equipped with a corresponding supporting operating system to operate, so it is also Narrowed down the scope of application

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