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Data transmission methods and devices

A data transmission method and data encapsulation technology, applied in the field of data transmission methods and devices, can solve problems affecting user experience, small payment range, queue congestion, etc., and achieve the effects of improving user experience, improving flexibility, and ensuring security

Active Publication Date: 2016-02-03
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even if near-field payment is used, customers still need to be close to the POS machine at the cashier counter when paying, and the cashier needs to input the amount charged. The payment range is small and the flexibility is low. , it is inevitable that there will be crowded queues, which will affect the user experience

Method used

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  • Data transmission methods and devices
  • Data transmission methods and devices
  • Data transmission methods and devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0173] The system structure of Embodiment 1 of the present invention is as follows Figure 8 As shown, this embodiment adds a WIFI hotspot and a product information server on the basis of the existing near-field payment, wherein the WIFI hotspot is used to provide WIFI signals and provide communication means for mobile terminals and POS machines. Commodity information server mainly stores commodity information and provides inquiry service, using commodity information server can make the payment process more convenient.

[0174] In this embodiment, the NFC chip on the mobile terminal has a P2P function, then the mobile terminal enters the P2P mode, and the NFC mobile terminal sends a payment request. Figure 9 It is a schematic flow chart of the payment method described in Embodiment 1 of the present invention, as Figure 9 As shown, the method includes:

[0175] Step 901: the NFC mobile terminal queries the commodity information server for specified commodity information thr...

Embodiment 2

[0183] For the system structure of the embodiment of the present invention, see Figure 8 , in this embodiment, the NFC chip of the mobile terminal only has a card simulation function, and the mobile terminal needs to access the commodity information server through WIFI, and the commodity information server orders the POS machine to issue a payment request.

[0184] Figure 10 It is a schematic flow chart of the payment method described in Embodiment 2 of the present invention, such as Figure 10 As shown, the method includes:

[0185] Step 1001: the NFC mobile terminal queries the commodity information server for specified commodity information through WIFI;

[0186] Step 1002: The commodity information server returns the information of the specified commodity to the NFC mobile terminal.

[0187] Step 1003: The NFC mobile terminal works in the card simulation mode, and sends a request to the commodity information server to pay for the specified commodity through WIFI.

[...

Embodiment 3

[0195] This embodiment describes the encapsulation and decapsulation of the NFC frame.

[0196] NFC data follows the NFC Data Exchange Format standard (NDEF, NFCDataExchangeFormat). An NDEF message or NFC frame consists of several records, such as Figure 11 As shown, each record format is as Figure 12 As shown, where MB indicates that the record is the first record in the frame, ME indicates that the record is the last record in the frame, and CF indicates the block identifier. SR indicates a short record, if SR=1, the payload length field is 1 byte, otherwise it is 4 bytes. IL indicates whether there is an ID length field, and TNF is the message payload type.

[0197]There are three frame types in WIFI: data frame, control frame and management frame. The data frame is divided into a data frame carrying data and a data frame not carrying data. In this embodiment, the NFC frame is encapsulated in a data frame carrying data, so the discussion of other frames is omitted. ...

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PUM

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Abstract

An embodiment of the invention discloses a data transmission method, being applied to a data transmitting end. The method comprises steps of encapsulating near field communication (NFC) data into an NFC frame; and encapsulating the NFC frame into a WIFI frame and then sending the WIFI frame out. An embodiment of the invention also discloses a data transmission method, being applied to a data receiving end. The method comprises steps of receiving the WIFI frame; decapsulating the NFC frame from the WIFI frame; and acquiring the NFC data from the NFC frame. Correspondingly, embodiments of the invention also disclose data transmission devices and a payment system. According to the technical scheme, a mobile terminal user can finish payment without getting close to a cashier desk, so that the payment distance is expanded while the payment security is guaranteed, the payment flexibility is improved, and the user experience is improved.

Description

technical field [0001] The invention relates to the field of data transmission, in particular to a data transmission method and device. Background technique [0002] Near Field Communication (NFC) is a short-distance (2-20cm) wireless data transmission technology. In recent years, as the cost of components has dropped, relevant specifications have matured one after another, especially with the emergence of a large number of mobile smart terminals, and the integration of NFC technology in mobile terminals has become more and more common. [0003] A typical scenario for using NFC technology on mobile terminals is near-field payment, and the entire payment system consists of mobile terminals, POS machines and payment platforms. Among them, the buyer puts the mobile terminal with NFC function close to the POS machine provided by the merchant. The POS machine with NFC function sends a payment request through electromagnetic waves of a specific frequency band. The NFC mobile term...

Claims

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Application Information

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IPC IPC(8): H04B5/00H04L29/06H04W84/12
Inventor 邓小宁刘玮哲
Owner CHINA MOBILE COMM GRP CO LTD
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