WO2012151902A1

WO2012151902A1 - Multi-mode terminal and sim card information transmitting system and method

Info

Publication number: WO2012151902A1
Application number: PCT/CN2011/082244
Authority: WO
Inventors: 梁国和; 冯德娟
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-09-19
Filing date: 2011-11-15
Publication date: 2012-11-15
Also published as: CN102368878A

Abstract

Disclosed are a multi-mode terminal and a SIM card information transmitting system, including: a multi-mode terminal, a SIM card and an SPI interface, with the multi-mode terminal further including at least one first communication module, wherein the first communication module is used for sending a read instruction regarding the required SIM card information to the SIM card via the SPI interface; the SIM card is used for receiving the read instruction from the first communication module and returning the corresponding SIM card information to the first communication information via the SPI interface; and the SPI interface is used for realizing communication between the first communication module and the SIM card. Also disclosed are a multi-mode terminal and a SIM card information transmitting method. The present invention can enable the communication module in the multi-mode terminal to access with a high speed and manage the SIM card, and support data concurrency processing, thereby increasing the interface data transmitting speed and the access efficiency of the SIM card.

Description

Multi-mode terminal and SIM card information transmission system and method

The present invention relates to information transmission technologies in mobile communication, and in particular, to a multimode terminal and SIM card information transmission system and method. Background technique

After entering the third generation of 3rd Generation Telecommunication (3G) era, mobile operators will face the second generation of mobile communication technology (2nd Generation Telecommunication, 2G), 3G and Long Term Evolution (LTE). In the case of long-term coexistence, many mobile operators regard multi-network collaboration as an operational target and optimization strategy, and support customized multi-mode terminals for service promotion and multi-network operation.

The current multi-mode terminal and SIM card information transmission are divided into single card and dual card/multi-card, namely: multi-mode terminal and single SIM card for information transmission, and multi-mode terminal and two or more SIM cards There are two situations in which information is transmitted.

Multi-mode terminals use multiple Subscriber Identity Modules (SIMs). Each SIM card corresponds to a separate communication system, which can reside in different communication systems. Single-card multi-mode terminals use one. A SIM card, which resides according to a certain terminal policy, network policy or business policy and completes the corresponding communication function.

A single card is generally issued by an operator. The information of multiple communication modules is placed on a SIM card. With a SIM card, multimode terminals can reside in different network modes, that is, single card multimode More waiting for the terminal. In this way, not only the burden of the single card user to purchase the card but also the overall power consumption of the multimode terminal is reduced. However, since a SIM card supports only one IS07816 interface, all the information in the SIM card must be read by one of the communication modules in the case of a single card, and then forwarded to other communication modules through the communication module. Due to the limitation of IS07816 interface speed The rate is slow, and the communication modules are transferred through the internal interface, so the total transmission efficiency is low. In the case of dual card/multi-card, each communication module reads the corresponding information in the SIM card through the IS07816 interface, and each communication module corresponds to the SIM card, and the information interaction between the SIM cards cannot be performed. Multimode terminals provide services to users on different communication networks, and each communication module must obtain information on the corresponding SIM card. However, limited by the SIM card interface, if the IS07816 interface is used, the free access of the multimode terminal to the SIM card cannot be achieved.

Therefore, in order to adapt to the development trend of multi-mode terminals and meet the information exchange reading and transmission efficiency between multiple communication modules and SIM cards, a multi-mode terminal is required to implement high-speed access and information sharing for SIM cards. Summary of the invention

In view of this, the present invention provides a multi-mode terminal and SIM card information transmission system and method, which can realize high-speed access and management of a SIM card by a communication module in a multi-mode terminal, and support data concurrent processing, thereby improving interface data transmission rate. And SIM card access efficiency.

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

The invention discloses a multi-mode terminal and a SIM card information transmission system, including: a multi-mode terminal,

a SIM card and an SPI interface, the multimode terminal further comprising at least one first communication module; wherein

The first communication module is configured to send a read instruction of the required SIM card information to the SIM card through the SPI interface;

The SIM card is configured to receive a read instruction of the first communication module, and return corresponding SIM card information to the first communication module by using an SPI interface;

The SPI interface is configured to implement communication between the first communication module and the SIM card.

Further, the multimode terminal further includes an application module and an internal interface, where the application module is configured to complete interaction with the user, process local services related to the network, local logic of the communication service, and a communication module performs communication control; The internal interface is configured to implement communication between the application module and the first communication module.

Further, the multimode terminal further includes an IS07816 interface and a second communication module, where the second communication module is configured to send a read instruction of the required SIM card information to the SIM card through the IS07816 interface;

Correspondingly, the SIM card is configured to receive a read instruction of the second communication module, and return corresponding SIM card information to the second communication module through the IS07816 interface.

Further, the multi-mode terminal further includes a third communication module, which is connected to the first communication module through an internal interface, and is configured to receive, by the internal interface, the first communication module that is required by the first communication module, and the first communication module passes the SPI through the internal interface. The SIM card information obtained by the interface from the SIM card.

Further, the first communication module includes a SIM card proxy unit, configured to forward the SIM card information required by the third communication module acquired by the first communication module to the third communication module.

Further, the system further includes an SPI bus controller, wherein the first communication module is connected to the SPI interface through an SPI bus controller, and the SPI bus controller is configured to gate the communication module in the multimode terminal.

Further, the first communication module or the second communication module includes a SIM card management unit and a SIM card driving unit;

The SIM card management unit is configured to complete a read instruction for sending the required SIM card information to the SIM card, read the information of the SIM card to the multimode terminal, and perform corresponding protocol processing;

The SIM card driving unit is configured to complete driving control of the SPI interface or the IS07816 interface. The invention also discloses a multi-mode terminal and SIM card information transmission method, comprising: at least one first communication module of the multi-mode terminal sends a read instruction of the required SIM card information to the SIM card through the SPI interface;

After receiving the read command, the SIM card returns the corresponding SIM card information to the first communication module that sends the read command through the SPI interface.

Further, the method further includes: the second communication module in the multimode terminal passes IS07816 The interface sends an information read command to the SIM card to obtain the SIM card information required by the SIM card. The SIM card returns the corresponding SIM card information to the second communication module that sends the read command through the IS07816 interface.

Further, the method further includes: after receiving the required SIM card information, the first communication module sends the SIM card information required by the third communication module to the third communication module through the internal interface.

Further, after receiving the required SIM card information, the first communication module forwards the acquired SIM card information required by the third communication module to the third communication module via the internal interface through the SIM card proxy unit.

Further, the reading instruction that the first communication module sends the required SIM card information to the SIM card through the SPI interface is: the first communication module is connected to the SPI interface through the SPI bus controller, via the SPI bus controller and the SPI The interface sends a read instruction of the required SIM card information to the SIM card to obtain the required SIM card information.

In summary, in the prior art, the single-mode terminal communication module transmits information through the IS07816 interface and the SIM card. However, limited by the SIM card interface, the access and management of the multi-mode terminal communication module to the SIM card cannot be realized only through the IS07816 interface. . The system and method provided by the present invention take advantage of the advantages of the traditional IS07816 interface and the lack of a SIM card interface, and fully utilize the characteristics of good SPI interface scalability and high data transmission efficiency, and adopt the SPI interface as the first communication in the multimode terminal. Interface between the module and the SIM card, direct high-speed access through the SPI interface, or through the combination of the SPI interface and the SIM card proxy unit forwarding, to realize the communication module and SIM card information transmission in the multi-mode terminal, to obtain the communication in the multi-mode terminal The information required by the module, namely: multiple communication modules to directly access or forward the required SIM card information in a single card or dual card/multi-card, and complete high-speed access and management of the SIM card by the communication module in the multi-mode terminal, In this way, not only the single card and dual card/multi-card multi-mode terminal implementation scheme is extended, but also data concurrent processing can be supported, thereby improving the interface data transmission rate and the access efficiency of the SIM card. DRAWINGS

1 is a schematic diagram showing the overall structure of a multimode terminal and a SIM card information transmission system according to the present invention; 2 is a schematic diagram of a multimode terminal and SIM card information transmission method according to the present invention;

3 is a schematic diagram of a preferred embodiment of a single-card dual-mode terminal structure when the SPI interface is used in the present invention; FIG. 4 is a schematic diagram of a preferred embodiment of a single-card dual-mode terminal structure when the SPI bus controller is used in the present invention;

5 is a schematic diagram of a preferred embodiment of a single card multimode terminal structure in a forwarding manner of a SIM card proxy unit according to the present invention;

6 is a schematic diagram of a preferred embodiment of a dual-card/multi-card multi-mode terminal structure in a forwarding manner of a SIM card proxy unit according to the present invention;

Figure 7 is a schematic diagram showing a preferred embodiment of the SIM card information reading structure when the SIM card proxy unit of the present invention is located in the application module. detailed description

The basic idea of the present invention is: at least one first communication module in the multimode terminal sends a read instruction of the required SIM card information to the SIM card through the SPI interface; after receiving the read command, the SIM card reads and sends the read message through the SPI interface. The first communication module of the instruction returns the corresponding SIM card information.

Considering different descriptions of smart cards of different communication modules, for convenience of description, the present invention replaces various telecommunication smart cards with SIM cards, including UIM cards, UICC cards, USIM cards, and the like.

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

1 is a schematic diagram of the overall structure of a multimode terminal and a SIM card information transmission system according to the present invention. As shown in FIG. 1, the system includes a multimode terminal, an SPI interface, and a SIM card. The multimode terminal and the SIM card are connected through an SPI interface. Information transfer.

The multimode terminal is configured to perform interaction with the user, process local services that are not related to the network, complete drive control of the SPI interface, read information of the SIM card, and perform corresponding protocol processing.

The multimode terminal further includes an application module, a first communication module, and an internal interface, wherein the application module is a main control module of the multimode terminal, and can be configured in an independent central processor (Central) On the processing unit, CPU, it can also be on the same processor as a communication module; the application module is responsible for completing the interaction with the user, processing the local business related to the network, the local logic part of the communication service, and The first communication module performs communication control.

The first communication module has one or more, used to complete the driving control of the SPI interface, and sends a read instruction of the required SIM card information to the SIM card through the SPI interface; normally, the first communication module includes SIM card management a unit and a SIM card driving unit; wherein, the SIM card management unit is mainly used for completing a reading instruction for transmitting the required SIM card information to the SIM card through the SPI interface, reading the information of the SIM card to the multimode terminal, and correspondingly Protocol processing; SIM card driver unit, mainly used to complete the drive control of the SPI interface.

The application module communicates with the first communication module through an internal interface, wherein the communication protocol can be transmitted by using an AT command.

a SIM card, configured to receive a read command of the first communication module, and return corresponding SIM card information to the first communication module through the SPI interface; specifically, the SIM card stores information for performing identity authentication on multiple networks; It is used to complete the client identity authentication and client information encryption process; update and manage the SIM card service through the wireless air interface method; manage the personal information of the user such as the phone number and the short message stored in the SIM card.

The multi-mode terminal may further include an IS07816 interface, and a second communication module for transmitting information with the SIM card through the IS07816 interface, where the second communication module is used to complete the driving control of the IS07816 interface, and send the required information to the SIM card through the IS07816 interface. The reading instruction of the SIM card information reads the information of the SIM card to the multi-mode terminal and performs corresponding protocol processing; correspondingly, the SIM card driving unit in the second communication module is used to complete the driving control of the IS07816 interface.

The multi-mode terminal may further include a third communication module connected to the first communication module only through the internal interface, where the third communication module receives the first communication module and sends the first communication module from the SIM card through the SPI interface through the internal interface. The obtained SIM card information required by the third communication module itself. The first communication module, the second communication module, and the third communication module respectively represent different types of communication modules, which may be collectively referred to as a communication module.

The first communication module of the multimode terminal in FIG. 1 may be one or more, represented by the communication module 1 to the communication module n; the SIM card may also be a single card, a dual card or a multi-card, which respectively corresponds to the communication module 1 ~ Communication module 1 information to communication module n information of communication module n; the case shown in Fig. 1 is only an example.

Here, the first communication module can adopt multiple communication systems, such as a time division (TD), a Global System for Mobile Communications (GSM), LTE, and the like; in addition, the first communication module can pass Multi-chip implementation, can also be based on a single chip; internal interfaces include serial port, USB and other types.

2 is a schematic flowchart of an implementation process of a multimode terminal and a SIM card information transmission method according to the present invention. As shown in FIG. 2, the method includes the following steps:

Step 201: At least one first communication module in the multimode terminal sends an information read command to the SIM card through the SPI interface.

Specifically, at least one first communication module of the multimode terminal sends a read instruction of the required SIM card information to the SIM card through the SPI interface to obtain the SIM card information required by each.

In this step, if the multimode terminal further includes the second communication module, the step further includes: the second communication module sends a read instruction of the required SIM card information to the SIM card through the IS07816 interface, and obtains the SIM card information required by the second communication module. If the multi-mode terminal further includes the third communication module, the step further includes the third communication module receiving, by the internal communication interface, an operation of the SIM card information required by the first communication module and sent by the first communication module.

Step 202: After receiving the read command, the SIM card returns corresponding SIM card information to the first communication module that sends the read command through the SPI interface.

The SIM card is a dual card or a multiple card.

In this step, if the multimode terminal further includes the second communication module, the step further includes the SIM. The card returns the corresponding SIM card information to the second communication module that sends the read command through the IS07816 interface. If the multimode terminal further includes the third communication module, the step further includes the first communication module receiving the required SIM card information. Sending, by the internal interface, the SIM card information required by the third communication module to the third communication module.

In practical applications, the multimode terminal can simultaneously include two or more communication modules connected to the SIM card through different interfaces, and each communication module obtains the SIM card information required by the different modes: For example, the multimode terminal includes the first a communication module and a second communication module, the first communication module is connected to the SIM card through the SPI interface, and the second communication module is connected to the SIM card through the IS07816 interface; wherein the first communication module sends the SIM card to the SIM card through the SPI interface. The SIM card information read instruction acquires the SIM card information required by the first communication module itself; the second communication module sends a read instruction of the SIM card information required by the SIM card to the SIM card through the IS07816 interface, and acquires the second communication module itself. Required SIM card information.

For another example, the multimode terminal includes a first communication module, a second communication module, and a third communication module. The first communication module is connected to the SIM card through the SPI interface, and the second communication module is connected to the SIM card through the IS07816 interface. The third communication module is connected to the first communication module through an internal interface;

The first communication module sends a read instruction of the SIM card information required by the first communication module to the SIM card through the SPI interface, acquires the SIM card information required by the first communication module and the third communication module, and acquires the third communication module through the internal interface. The required SIM card information is forwarded to the third communication module; the second communication module sends a read instruction of the SIM card information required by the SIM card to the SIM card through the IS07816 interface, and acquires the SIM card information required by the second communication module itself; The communication module receives the SIM card information required by the first communication module and the third communication module itself through the internal interface.

For another example, the multi-mode terminal includes a first communication module and a third communication module, the first communication module is connected to the SIM card through an SPI interface, and the third communication module is connected to the first communication module through an internal interface, where The communication module acquires the first communication module and the first through the SPI interface The SIM card information required by the third communication module is forwarded to the third communication module, and the third communication module receives the third communication module forwarded by the first communication module through the internal interface. The SIM card information required by itself.

The first communication module may include a SIM card proxy unit, wherein the SIM card proxy unit forwards the SIM card information required by the third communication module acquired by the first communication module to the third communication module via the internal interface.

In practical applications, the first communication module can be connected to the SPI interface through the SPI bus controller, and send a read instruction of the SIM card information required by the SIM card to the SIM card via the SPI bus controller and the SPI interface to obtain the required SIM card information. . Here, the acquired SIM card information may be required by the first communication module, and/or the third communication module.

Further, the first communication module or the second communication module includes a SIM card management unit and a SIM card driving unit, where the SIM card management unit is configured to read information of the SIM card to the multimode terminal, and perform Corresponding protocol processing; the SIM card driving unit is used to complete the driving control of the SPI interface or the IS07816 interface.

In order to better understand the technical solution of the present invention, the following description will be respectively made for different multimode terminals and SIM card modes.

Consider the simpler case in single card mode, namely: access and management of the SIM card by the dual mode terminal in single card mode.

3 is a schematic diagram of a preferred embodiment of a single-card dual-mode terminal structure when the SPI interface is used in the present invention. In FIG. 3, the dual-mode terminal includes a first communication module and a second communication module, both of which are identical in structure, including SIM card management. Unit and SIM card drive unit, both support IS07816 interface and SPI interface. The first communication module and the second communication module respectively access the SIM card through the SPI interface and the IS07816 interface, and obtain the SIM card information required by each, that is, the information of the first communication module in the SIM card and the information of the second communication module information. Wherein, the SIM card driving unit of the first communication module and the second communication module support the SPI interface, occupying the C3, C4, C8, C6 ports of the SIM card (not shown); also supports IS07816 interface, occupying SIM card Cl, C2, C3,

The C5 and C7 ports (not shown in the figure), the specific implementation process belongs to the prior art, and details are not described herein again.

4 is a schematic diagram of a preferred embodiment of a single-card multi-mode terminal structure when the SPI interface is used in the present invention. In this embodiment, two communication modules of the dual-mode terminal are respectively connected to the SPI bus controller, and the SPI bus controller passes the SPI. The interface is connected to the SIM card, so that the high speed access of the two communication modules to the same SIM card can be realized by the SPI bus controller. The communication module 1 and the communication module 2 in FIG. 4 may be a first communication module, and/or a second communication module, both supporting an IS07816 interface and an SPI interface. The SPI interface multi-mode multiplexing and parallel access can be implemented by the SPI bus controller. The specific implementation process belongs to the prior art and will not be described here.

The main features of this embodiment are as follows: The multi-mode terminal can realize high-speed access to the SIM card in parallel without using the SIM card proxy unit forwarding mode, but the terminal hardware changes greatly.

Secondly, consider the more complicated situation in the single card mode, namely: access and management of the SIM card by the multimode terminal in the single card mode.

In this case, if the method shown in Figure 3 is used, it is obviously impossible to implement access and management of the SIM card by the multimode terminal. If the method shown in FIG. 4 is still adopted, although the access and management of the SIM card by the multi-mode terminal can be realized, since the communication modules can only access and manage the SIM card at the same time, the data transmission rate is bound to be affected. Impact, may not meet the real needs of higher data transfer rates. To this end, the present invention proposes to implement a multi-mode terminal to access and manage a SIM card by using a combination of an SPI interface and a SIM card proxy unit forwarding, as shown in FIG.

FIG. 5 is a schematic diagram of a preferred embodiment of a single card multimode terminal structure in a forwarding manner of a SIM card proxy unit according to the present invention. For convenience of description, all communication modules except the first communication module and the second communication module are referred to as a third communication module in this embodiment; and, assuming that the first communication module adopts the LTE standard, and the second communication module adopts the GSM standard The third communication module adopts the TD standard and the like. In this embodiment, the second communication module includes a SIM card driving unit and a SIM card management unit, and directly accesses the SIM card through the traditional IS07816 interface. The first communication module includes a SIM card proxy unit in addition to the SIM card drive unit and the SIM card management unit, and implements high-speed access to the SIM card through the SPI interface. The third communication module does not have to consider the SIM card hardware and driver design, and only includes the SIM card management unit. The SIM card proxy unit serves as an intermediate module, and the plurality of communication modules can coordinate and cooperate with each other through the SIM card proxy unit, and realize the forwarding or sharing of the SIM card information.

The SIM card management unit of the second communication module completes the transmission and management of the second communication module information in the SIM card, and performs corresponding protocol processing; the SIM card management unit of the first communication module is mainly used to complete the acquisition of the SIM card. First communication module information and third communication module information, and corresponding protocol processing; SIM card driving unit is mainly used to complete drive control of interfaces such as SPI interface or IS07816 interface; SIM card management unit of third communication module supports SIM card The proxy mode is capable of receiving SIM card information forwarded by the SIM card proxy unit in the first communication module.

It should be noted that the SIM card proxy unit can be combined with the SIM card management unit or the SIM card drive unit in a specific implementation.

This embodiment is also applicable to other high-speed SIM card interfaces. The main advantages are: The terminal hardware changes are small, and the third communication module can obtain the required SIM card information through the SIM card proxy unit forwarding mode, which not only satisfies the data transmission rate well. The requirements can also save the hardware cost and design cost of the communication module. It should be noted that the second communication module accesses the SIM card through the traditional IS07816 interface. For example, considering the transmission efficiency, the second communication module information can also be acquired and forwarded through the first communication module.

On the other hand, consider the case of dual-card/multi-card mode, namely: access and management of the SIM card by the multimode terminal in dual card/multi-card mode.

6 is a schematic diagram of a preferred embodiment of a dual-card/multi-card multi-mode terminal structure in a forwarding mode of a SIM card proxy unit according to the present invention, and considering the characteristics of the forwarding mode of the SIM card proxy unit, In this way, the multimode terminal is used to access and manage two or more SIM cards. As shown in FIG. 6, a first communication module of the multimode terminal implements direct high-speed access of the SPI interface to two or more SIM cards, and the first communication module is also compatible with the IS07816 interface, and the third communication module of the multimode terminal. It is not necessary to consider the SIM card hardware and driver design, and the SIM card information unit can be used to transfer and share the SIM card information through the SIM card proxy unit forwarding mode.

In this embodiment, the first communication module includes a SIM card driving unit, a SIM card management unit, a SIM card agent, and the like; the first communication module SIM card driving unit supports an SPI interface, and can support two ways of accessing the SIM card: IS07816 interface, occupying the Cl, C2, C3, C5, C7 ports of the SIM card (not shown); the other is the SPI interface, occupying the C3, C4, C8, C6 ports of the SIM card (not shown in the figure) ). The third communication module does not include the SIM card driving unit and the SIM card proxy, and only includes the SIM card management unit, etc., does not support the SIM card interface, but supports the SIM card proxy unit forwarding mode.

The SIM card management unit of the first communication module completes the transmission and management of the SIM card information, and performs corresponding protocol processing; the SIM card management unit of the third communication module can receive the SIM forwarded by the SIM card proxy unit in the first communication module. Card information.

Figure 6 shows the case of two SIM cards. The first communication module is connected to SIM card 1 and SIM card 2 via the traditional IS07816 interface and SPI interface. When there are more than three SIM card multi-card cases, the communication module of the multi-mode terminal can still access multiple SIM cards at the same time by using SPI technology. The SPI interface is a synchronous protocol interface that supports one master device to control multiple slave devices. Through the SPI interface, the communication module can easily realize high-speed access to multiple SIM cards. Among them, one SPI interface can control four SIM cards. The specific implementation process belongs to the prior art, and details are not described herein again.

This embodiment is also applicable to other high-speed SIM card interfaces. The main advantages are: access to two or more SIM cards can be easily realized by using the SPI interface to expand the features, and the third communication module can complete the SIM through its own SIM card management unit. Card information transmission and sharing. Finally, it should be noted that the internal interface in FIG. 5 includes an application module and a communication module, and a communication physical interface between the communication module and the communication module, wherein the application module and each communication module have an internal interface, and the plurality of communication modules There is also an internal interface; here, the communication module includes a first communication module, a second communication module, and a third communication module; and the application module can employ a separate application processor. In practical applications, the internal interfaces may not exist between multiple communication modules, but the transmission of the transmission and sharing information is completed by the application module, as shown in FIG. 7 .

FIG. 7 is a schematic diagram of a preferred embodiment of a SIM card information reading structure when the SIM card proxy unit is located in an application module according to the present invention. In this embodiment, a smart phone architecture is adopted, and the application module adopts an independent CPU, that is, an application processor, and the application processor passes The internal interface communicates with two communication modules.

The multimode terminal includes a 3G communication module and a 2G communication module; wherein, the 3G communication module is the first communication module, adopts the TD system; the 2G communication module is the second communication module, adopts the GSM standard; the application processor adds the SIM card proxy unit And SIM card drive unit. The SIM card driving unit uses the SPI interface to complete the access control of the SIM card by the application processor; the SIM card proxy unit acts as an intermediate module, and the application processor coordinates with the first communication module and the second communication module through the SIM card proxy unit. And cooperate, and realize the forwarding or sharing of the SIM card information by the application processor; the SIM card proxy unit is responsible for forwarding the SIM card information required by the 3G communication module for the 3G communication module.

The internal interface completes the communication between the application processor and the 3G communication module and the 2G communication module, and the internal interface may include a serial port, a USB, and the like; the communication protocol is transmitted by using an AT command.

To illustrate the transmission purpose and flow of the SIM card information in this embodiment, the SIM card information is correspondingly divided into 3G communication module information, 2G communication module information, and application information. The 3G communication module information and the 2G communication module information are respectively SIM card information required for the 3G communication module and the 2G communication module to implement the corresponding network communication function, such as encryption authentication and the like; and the application information is required for the application processor application. SIM card information, such as SIM card phone book and other information.

The 2G communication module directly reads the 2G communication module information in the SIM card through the IS07816 interface. Because there is no communication interface between the 2G communication module and the 3G communication module, the 3G communication module information needs to be forwarded by the application processor to the 3G communication module, and the forwarding process is completed by the SIM card proxy unit; the 3G communication module supports the SIM card proxy unit in the application processor. The forwarding function obtains the 3G communication module information forwarded by the SIM card proxy unit through the SIM card management unit.

In addition to the 3G communication module information, the application processor also reads the application information through the SPI interface. This embodiment is also applicable to the case where an application module is on the same processor as a communication module, and is also applicable to other high-speed access interfaces, such as a USB interface.

The main advantages of this embodiment are: The transformation of the multimode terminal is mainly focused on the application processor, so that the 3G communication module is changed little, and the 2G communication module can be modified.

One of ordinary skill in the art will appreciate that all or a portion of the steps described above can be accomplished by controlling the associated hardware, which can be stored in a computer readable storage medium, such as a read only memory, a magnetic disk, or an optical disk. Optionally, all or part of the steps of the foregoing embodiments may also be implemented by using one or more integrated circuits. Accordingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware, or may be implemented by using a software function module. Formal realization. The invention is not limited to any specific form of combination of hardware and software.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

Claim

A multi-mode terminal and a SIM card information transmission system, the system comprising: a multi-mode terminal, a SIM card, and an SPI interface, the multi-mode terminal further comprising at least one first communication module;

2. The system according to claim 1, wherein the multimode terminal further comprises an application module and an internal interface;

The application module is configured to complete interaction with a user, process a local service related to the network, a local logic part of the communication type service, and perform communication control on the first communication module;

The internal interface is configured to implement communication between the application module and the first communication module.

The system according to claim 1, wherein the multimode terminal further includes an IS07816 interface and a second communication module;

The second communication module is configured to send a read instruction of the required SIM card information to the SIM card through the IS07816 interface;

The system according to claim 2 or 3, wherein the multimode terminal further comprises a third communication module, which is connected to the first communication module through an internal interface, and is configured to receive the first communication module through the internal interface. The SIM card information obtained by the first communication module from the SIM card through the SPI interface.

5. The system of claim 4, wherein the first communication module comprises The SIM card proxy unit is configured to forward the SIM card information required by the third communication module acquired by the first communication module to the third communication module.

6. The system according to claim 1, wherein the system further comprises an SPI bus controller, wherein the first communication module is connected to the SPI interface through an SPI bus controller; the SPI bus controller is configured to The communication module in the multimode terminal is gated.

The system according to claim 3, wherein the first communication module or the second communication module comprises a SIM card management unit and a SIM card driving unit;

The SIM card driving unit is configured to complete driving control of the SPI interface or the IS07816 interface.

8. A multimode terminal and SIM card information transmission method, the method comprising: transmitting, by a SPI interface, at least one first communication module in a multimode terminal to a SIM card

Reading instruction of SIM card information;

The method according to claim 8, wherein the method further comprises: the second communication module in the multimode terminal sends a read instruction of the required SIM card information to the SIM card through the IS07816 interface, to obtain the required The SIM card information; the SIM card returns the corresponding SIM card information to the second communication module that sends the read command through the IS07816 interface.

The method according to claim 8 or 9, wherein the method further comprises: after receiving the required SIM card information, the first communication module sends the third communication module to the third communication module through the internal interface. Required SIM card information.

The method according to claim 10, wherein after the first communication module receives the required SIM card information, the SIM required by the third communication module is acquired by the SIM card proxy unit via the internal interface. The card information is forwarded to the third communication module.

The method according to claim 8 or 9, wherein the first communication module sends the required SIM card information to the SIM card through the SPI interface: the first communication module passes through the SPI bus The controller is connected to the SPI interface, and sends a read instruction of the required SIM card information to the SIM card via the SPI bus controller and the SPI interface to obtain the required SIM card information.