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An adaptive method and device for terminal NFC matching

A self-adaptive, terminal technology, applied in telephone communication, electrical components, connection management, etc., can solve problems that are unrealistic and affect user experience, and achieve the effect of satisfying user experience

Active Publication Date: 2016-03-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the NFC function is integrated by the SIM card, and the cards produced by different SIM card manufacturers have different impedances at the output ports, this requires that the mobile phone must design different matching circuits for the cards of different SIM card manufacturers. is unrealistic
At present, the industry does not have a good solution to this problem. The only way is to adjust the frequency of the antenna wide enough to be compatible with cards from different SIM card manufacturers. However, this adjustment is realized at the expense of the NFC communication effect. User experience

Method used

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  • An adaptive method and device for terminal NFC matching

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Embodiment Construction

[0028] The basic idea of ​​the present invention is: a matching circuit for changing the impedance of the NFC radio frequency path is set at the terminal; the terminal records the initial matching circuit information and the strength of the NFC signal, and after adjusting the matching circuit for changing the impedance of the NFC radio frequency path each time, the terminal Detect the current NFC signal strength of the NFC antenna, record the information of the matching circuit with the strongest NFC signal strength and the NFC signal strength; after all adjustments are completed, set the matching circuit according to the recorded matching circuit information.

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] The present invention implements an adaptive method for terminal NFC matching, such as figure 1 As shown, the method includes the following steps:

[0031] Step 101: set...

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Abstract

The invention discloses an adaptive method for terminal near-field communication (NFC) matching. A matching circuit for changing the impedance of the NFC radio frequency path is set in the terminal; After changing the matching circuit of the NFC radio frequency path impedance, the terminal detects the current NFC signal strength of the NFC antenna, and records the information of the matching circuit with the strongest NFC signal strength and the NFC signal strength; after all adjustments are completed, set the matching circuit according to the recorded matching circuit information. circuit; the present invention also discloses an adaptive device for terminal NFC matching; through the scheme of the present invention, the best matching circuit can be selected according to the current NFC communication state so that the terminal obtains the best NFC communication state and satisfies the needs of users. experience feelings.

Description

technical field [0001] The present invention relates to a near field communication (NFC) function of a terminal, in particular to an adaptive method and device for NFC matching of a terminal. Background technique [0002] Nowadays, mobile payment has gradually entered people's lives. As long as there is a mobile phone with NFC function, it can replace the bus card, bank card, and credit card used in daily travel. NFC can solve all problems. Now NFC mainly has two standards, 2.5GHz and 13.56MHz. 2.5GHz is mainly used in the financial field, while 13.56MHz is mostly used in closed environments, such as bus cards, meal cards, etc. Operators are currently promoting the 13.56MHz solution, which integrates the NFC function into the Subscriber Identity Module (SIM, Subscriber Identity Module) card, and the mobile phone only needs to provide an NFC antenna to complete the card swiping function. This design can effectively reduce the design complexity of NFC and facilitate the pop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B5/02H04M1/725H04M1/72412
CPCH04W84/18H04W76/14
Inventor 刘双霖张宇
Owner ZTE CORP