CN202095097U

CN202095097U - SE module capable of expanding multiple ways SWP protocol interface

Info

Publication number: CN202095097U
Application number: CN201120146036.2U
Authority: CN
Inventors: 付积存; 吴俊军; 黄书伟
Original assignee: Wuhan Tianyu Information Industry Co Ltd
Current assignee: Wuhan Tianyu Information Industry Co Ltd
Priority date: 2011-05-10
Filing date: 2011-05-10
Publication date: 2011-12-28
Anticipated expiration: 2021-05-10

Abstract

The utility model discloses an SE module capable of expanding a multiple ways SWP protocol interface, including: an AP interface connected with a mobile communication terminal application manager, and a slaved SWP interface connected with a mobile communication terminal CLF unit, and an SWP switching unit connected with the AP interface and the slaved SWP interface, and at least two main SWP interfaces connected with the SWP switching unit, each of the main SWP interfaces is connected to an SE business unit. The SE module capable of expanding a multiple ways SWP protocol interface can be realized in a mobile communication terminal using a CLF unit and time sharing to support multiple SE business units, thus only one mobile communication terminal can satisfy business requirements of a plurality of mobile payment dominant business, and the method is simple and feasible, the cost is effective to reduce, the problem of mobile phone circuits with volume restriction is solved.

Description

Can expand the SE module of multichannel SWP protocol interface

Technical field

The utility model relates to the mobile communication equipment field, relate in particular to a kind of at application near-field communication (Near Field Communication, NFC) realize to expand security context (Security Environment, SE) module of multichannel SWP protocol interface in the mobile communication terminal of technology.

Background technology

In recent years, mobile communication terminal, as mobile phone etc., it no longer has been the simple voice communication instrument, but transition is the integrated network application terminal with portable amusement and reliable means of payment function etc., can finish payment in fields such as consumption, shopping, traffic quickly and easily by the mobile phone people.Based on the new application demand of people to mobile phone, mobile payment service arises at the historic moment, and become mobile operator gradually, the hot issue of mobile-phone manufacturers, SIM card manufacturer research.

Mobile payment service is also referred to as the mobile-phone payment business, is meant to allow the user to use its mobile communication terminal (normally mobile phone) that a kind of method of service that account is paid is carried out in the commodity or the service of being consumed.Whole mobile payment value chain comprises mobile operator, payment services merchant, application provider, equipment supplier, system integrator, businessman and terminal use.

The mobile payment service of prior art is followed the wireless communication protocol standards of 13.56MHz mostly, adopts the NFC scheme.NFC is a kind of very-short-reach wireless communication technology, and it makes can directly perceived, convenient, communication safely between the equipment of two compatible NFC.

The main application of NFC is mobile small amount payment, can also be applied to fields such as gate inhibition, public transport in addition.In the NFC scheme, (ContactLess Frontend, CLF) (Security Environment, single-wire-protocol (Single Wire Protocol, SWP) connectivity scenario are used in connection SE) to non-contact front-end for chip and security context.

The SWP connectivity scenario is based on the SWP standard of ETSI (ETSI), this standard code the communication interface between SE and the CLF chip.As shown in Figure 1, SWP is the full-duplex communication that realizes S1 signal and this both direction of S2 signal on a single line, and the both sides of communication are SE and CLF.The S1 signal is a voltage signal, and SIM card adopts the level width modulated by the high-low level of voltmeter detection S1 signal; The S2 signal is a current signal, adopts the load-modulate mode.The S2 signal must be just effective when the S1 signal is high level, its inside of conducting triode when the S1 signal is high level, and the S2 signal just can transmit.S1 signal and S2 signal are superimposed, and realize full-duplex communication on a single line.

According to the SWP agreement, point-to-point communication between CLF and the SE, i.e. corresponding SE business unit in CLF unit, but demand according to existing market, there are mobile operator, banking and other manufacturers in the leading market of mobile payment service, and the form of expression of SE business unit also is various simultaneously, and modes such as SIM card, TF card, chip form are arranged, therefore, this man-to-man NFC scheme has been difficult to satisfy the market demand of more and more polynary change.

The utility model content

The utility model embodiment technical problem to be solved is, a kind of SE module of expanding multichannel SWP protocol interface is provided, this module can be implemented in utilizes a CLF unit timesharing to support a plurality of SE business unit on the mobile communication terminal, thereby only needs a mobile communication terminal can satisfy the leading merchant's of a plurality of mobile payments business demand.

In order to solve the problems of the technologies described above, the utility model embodiment has proposed a kind of SE module of expanding multichannel SWP protocol interface, comprise: the AP interface that is connected with the mobile communication terminal application manager, be connected with mobile communication terminal CLF unit from the SWP interface, with at least two main SWP interfaces that described AP interface is connected with the SWP switch unit that is connected from the SWP interface and with described SWP switch unit, each main SWP interface is connected to a SE business unit.

Preferably, described SWP switch unit includes:

Switch performance element with described AP interface and the SWP switch control unit that is connected from the SWP interface, the SWP that is connected with the SWP switch control unit.

Preferably, described SWP switch control unit adopts safety chip.

Preferably, this module be integrated in SIM card, SD card, TF card, and safety chip in any on.

The SE module of the multichannel the expanded SWP protocol interface of the utility model embodiment, have one connect the CLF unit from SWP interface and a plurality of main SWP interfaces that are used to be connected the SE business unit, and utilize the SWP switch unit to control the switching of described main SWP interface, thereby solved the problem that order previous CLF only supports a SE business, realized in the mobile communication terminal of the support of a CLF unit to multichannel SE business, effectively reduce cost, also solved the problem that mobile phone circuit is subjected to volume restrictions.

Description of drawings

Fig. 1 realizes that by the SWP agreement signal flow of full-duplex communication is to schematic diagram between the SE module of prior art and the CLF unit;

Fig. 2 is a composition structure chart of expanding an embodiment of SE module of multichannel SWP protocol interface of the present utility model;

Fig. 3 is the annexation schematic diagram that embodiment of SE module that expands multichannel SWP protocol interface of the present utility model uses on mobile communication terminal;

Fig. 4 realizes that by the SWP agreement signal flow of full-duplex communication is to schematic diagram between embodiment of SE module that expands multichannel SWP protocol interface of the present utility model and the SE business unit.

Embodiment

Below in conjunction with accompanying drawing, embodiment is elaborated to the utility model.

Fig. 2 is the composition structure chart that the utility model can be expanded an embodiment of SE module of multichannel SWP protocol interface, and Fig. 3 is the annexation schematic diagram that present embodiment is used on mobile communication terminal; As shown in Figures 2 and 3, present embodiment mainly includes: with mobile communication terminal application processor (Application Processor, AP) the AP interface 1 of Lian Jieing, be connected with mobile communication terminal CLF unit from SWP interface 2, with at least two main SWP interfaces 4 that described AP interface 1 is connected with the SWP switch unit 3 that is connected from SWP interface 2 and with described SWP switch unit 3, each main SWP interface 4 is connected to a mobile communication terminal SE business unit.

During specific implementation, described SWP switch unit 3 can specifically include:

Switch performance element 32 with described AP interface 1 and the SWP switch control unit 31 that links to each other from SWP interface 2 and the SWP that links to each other with the main SWP interface 4 of described SWP switch control unit 31 and each.

A kind of way of realization as present embodiment, present embodiment can be integrated in the SE business unit commonly used such as existing SIM card, SD card, TF card, safety chip any, make each SE business function that described SE business unit has except itself also have the function that the SE module of present embodiment is realized.

Describe each part of present embodiment below in detail.

AP interface 1 is the interface that is used to connect AP and SWP switch unit 3, and this interface can adopt the standard interface of ISO7816 agreement, is connected to AP by VCC, GND, RST, CLK, IO interface, thereby receives corresponding AP instruction.AP selects different SE business unit as required, and SWP switch unit 3 is arrived in the instruction that sends the ISO7816 standard agreement by AP interface 1, after data parsing is carried out in 3 pairs of described instructions of SWP switch unit, determines the switching of SWP signal.

From SWP interface 2 are the interfaces that are used to connect the CLF unit, described CLF unit be by being connected to SWP switch unit 3 from SWP interface 2, also can carry out the SWP signal by SWP switch unit 3 and switch to as shown in Figure 3 SE business unit 1, SE business unit 2 or other SE business unit n.

SWP switch unit 3 is as the key process unit of present embodiment, carry out SWP signal hand-off process, after the instruction of receiving from AP or CLF unit, instruct decoding, content according to decoding, determine the SWP signal to be switched to which main SWP signaling interface 4 and carry out corresponding operation, close being connected simultaneously from the main SWP interface 4 of SWP interface 2 and other, make this circuit have only one road SWP signal in running order at any time, avoided the access of multichannel SWP signal to cause the problem that to communicate by letter.

Main SWP interface 4 is the interfaces that are used to connect a plurality of SE business unit, and main SWP interface 4 can be provided with several as required, and each main SWP interface 4 connects a SE business unit.The implementation of the SE module of present embodiment can be SIM card pattern, SD mode card, TF mode card or safety chip pattern etc., and all be that standard interface by the SWP agreement connects between the main SWP interface 4 of above-mentioned various patterns and the SE business unit, as shown in Figure 4, the interface of SWP agreement comprises power supply VCC (not shown), SWP bi-directional communication interface SWPIO, earth terminal GND.

During specific implementation, described SWP switch control unit 31 can adopt safety chip.Safety chip comprises various security algorithms and encryption and decryption agreement etc., can carry out encryption and decryption, the safe storage of data, can guarantee that the CLF unit carries out the safety of wireless short-distance communication; In addition, also be provided with AP interface 1 on the safety chip, the AP interface on the safety chip mainly adopts the standard interface of ISO7816 agreement at present, is connected to AP by VCC, GND, RST, CLK, IO interface.Safety chip is behind the data message that receives from described CLF unit or AP, resolve the order data of CLF or AP, determine which SE business unit the CLF unit need be connected to, control SWP then and switch performance element 32 and carry out the SWP interface and switch, the SWP signal of CLF unit is connected on the passage of the SE business unit that need switch to.After SWP switching performance element 32 receives the order of safety chip, switch to a certain road master SWP interface 4 with what be connected to the CLF unit from SWP interface 2, other main SWP interface 4 and this road signal are isolated simultaneously, therefore a certain moment, have and only have one road SWP signal to be in connection status.

Compared with prior art, advantage of the present utility model has been to solve the problem that order previous CLF only supports a SE, realizes the support of multichannel SE by using a CLF unit, effectively reduced cost, has also solved the problem that mobile phone circuit is subjected to volume restrictions.

The above is an embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection range of the present utility model.

Claims

1. the SE module that can expand multichannel SWP protocol interface, it is characterized in that, comprise: the AP interface that is connected with the mobile communication terminal application manager, be connected with mobile communication terminal CLF unit from the SWP interface, switch performance element with described AP interface and the SWP switch control unit that is connected from the SWP interface, the SWP that is connected with the SWP switch control unit, and at least two main SWP interfaces that are connected with described SWP switching performance element, each main SWP interface is connected to a SE business unit.

2. the SE module of expanding multichannel SWP protocol interface as claimed in claim 1 is characterized in that, described SWP switch unit includes:

SWP switch control unit that links to each other with described AP interface and from the SWP interface and the SWP that links to each other with the main SWP interface of described SWP switch control unit and each switching performance element.

3. the SE module of expanding multichannel SWP protocol interface as claimed in claim 2 is characterized in that, described SWP switch control unit adopts safety chip.

4. as each described SE module of expanding multichannel SWP protocol interface among the claim 1-3, it is characterized in that this module is integrated in SIM card, SD card, TF card, the safety chip any.