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Method and device for modifying routing table of non-contact front-end chip

A non-contact, routing table technology, applied in digital transmission systems, data exchange networks, electrical components, etc., can solve the problems of limiting the number of user download card applications, unfavorable business development, and limited routing table space, etc. Insufficient space, meeting business development needs, and improving user experience

Active Publication Date: 2020-01-14
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the space of the routing table in the CLF chip is very limited, it is not conducive to the needs of business development, which greatly limits the number of card applications that users can download

Method used

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  • Method and device for modifying routing table of non-contact front-end chip
  • Method and device for modifying routing table of non-contact front-end chip
  • Method and device for modifying routing table of non-contact front-end chip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] The modification method of the CLF chip routing table in this embodiment, such as image 3 As shown, the method includes the following steps:

[0056] Step 301: judging whether the routing table of the CLF chip is in the first state;

[0057] Here, the first state is used to indicate that the number of AID routing entries in the AID routing area in the routing table of the CLF chip is greater than or equal to a preset value.

[0058] The CLF chip routing table refers to: the routing table in the CLF chip.

[0059] Such as figure 1 As shown, the CLF chip routing table includes: a default routing area and an AID routing area, and the default routing area includes default AID routing information; it also includes: default routing (Default ISO-DEProute) information related to file types and related technologies type of default route (Default technology route) information; the AID route area includes: non-default AID route information.

[0060] The default AID routing in...

Embodiment 2

[0087]In this embodiment, on the basis of Embodiment 1, taking Android as an OS as an example, how to modify the AID routing information in the routing table of the CLF chip is described in detail.

[0088] In this embodiment, the CLF chip routing table includes: a default routing area and an AID routing area, and the default routing area includes default AID routing information; it also includes: default routing (Default ISO-DEProute) information related to file types and related Default technology route (Default technology route) information of the technology type; the AID routing area includes: non-default AID routing information.

[0089] Wherein, the default AID routing information includes: routing pointing; the non-default AID routing information includes: AID information and corresponding routing pointing.

[0090] The method for modifying the routing table of the CLF chip in this embodiment, such as Figure 4 shown, including the following steps:

[0091] Step 401: ...

Embodiment 3

[0112] In order to realize the method of the embodiment of the present invention, the present embodiment provides a device for modifying the routing table of the CLF chip, such as Figure 9 As shown, the device includes: a judging unit 91 and a modifying unit 92; wherein,

[0113] The judging unit 91 is configured to judge whether the CLF chip routing table is in a first state; the first state is used to indicate that the number of AID routing entries in the AID routing area in the CLF chip routing table is greater than or equal to a preset value;

[0114] The modifying unit 92 is configured to modify the default AID routing information and non-default AID routing information so that the CLF chip routing table is in the second state when the judgment result indicates that the CLF chip routing table is in the first state ; The second state is used to indicate that the number of AID routing entries in the AID routing area is less than a preset value.

[0115] Wherein, the CLF ...

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Abstract

The invention discloses a method for modifying a contactless front-end (CLF) chip routing table. The CLF chip routing table includes: a default routing area and an application identification (AID) routing area, and the default routing area includes default AID routing information The AID routing area includes: non-default AID routing information; the method includes: judging whether the CLF chip routing table is in a first state; the first state is used to characterize the AID routing area of ​​the CLF chip routing table The number of AID routing entries is greater than or equal to a preset value; when the judgment result indicates that the CLF chip routing table is in the first state, modify the default AID routing information and non-default AID routing information so that the CLF chip routing table It is in a second state; the second state is used to indicate that the number of AID routing entries in the AID routing area is less than a preset value. The invention also discloses a device for modifying the routing table of the CLF chip.

Description

technical field [0001] The present invention relates to near-field communication (NFC, Near Field Communication) technology, in particular to a method and device for modifying a contactless front-end (CLF, Contactless Frontend) chip routing table. Background technique [0002] Android (Android) 4.4 version of the operating system (OS, Operating System) has added a host-based card emulation (HCE, Host-based Card Emulation) function. The HCE function enables the terminal to operate without a secure element (SE, Secure Element) ( In the case of SIM (Subscriber Identity Module) card, built-in security chip), the card simulation operation in mobile payment is realized. Therefore, after Android 4.4, the NFC terminal of Android OS will have two card simulation environments, namely HCE and SIM card. [0003] When performing contactless communication, the CLF chip of the terminal needs to identify which card simulation environment the command of the external card reader is sent to. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/751H04L45/02
CPCH04L45/02
Inventor 罗烽
Owner CHINA MOBILE COMM GRP CO LTD
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