CN107466027A

CN107466027A - Data transmission system, method, external equipment and mobile terminal

Info

Publication number: CN107466027A
Application number: CN201710644624.0A
Authority: CN
Inventors: 汤少华; 龙浩
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2017-07-31
Filing date: 2017-07-31
Publication date: 2017-12-12

Abstract

The invention discloses a kind of data transmission system, method, external equipment and mobile terminal, this method is applied to mobile terminal and external equipment, packet to be sent acquired in being split when the second data transmitting server of external equipment, obtains subdata bag corresponding to packet to be sent；Determine the end data packet addition end of identification in subdata bag；Subdata bag is sent to the second application processor being connected with the second data transmitting server, so that subdata bag is sent to mobile terminal by the second application processor by preset interface.When mobile terminal receives the subdata bag containing end of identification, the subdata package received is synthesized into a complete packet, to obtain the complete packet to be sent of external equipment transmission.During carrying out data transmission in external equipment and mobile terminal, by the packet transmitted is excessive, the situation of packet bust this is caused to occur.

Description

Data transmission system, method, external equipment and mobile terminal

Technical field

The present invention relates to communication technical field, more particularly to a kind of data transmission system, method, external equipment and movement are eventually End.

Background technology

With the development of mobile communication technology, mobile terminal has become user and carried with, and essential electronics is set It is standby.Led in operator and major OEM (Original Equipment Manufacturer, original equipment manufacturer) manufacturer Under head, 3G (3rd Generation, 3rd generation mobile communication technology), 4G (the 4th Generation Mobile Communication Technology, fourth generation mobile communication technology), CA (Carrier Aggregation, using carrier wave Polymerization technique) and newest 5G (5th-Generation, the 5th third-generation mobile communication technology) arise at the historic moment, the mesh of these technologies Be to improve the online bandwidth of user.Under such a background, a kind of mode for improving user's online bandwidth is also quietly given birth to, Mobile terminal connects two modems, and each modem has corresponding SIM (Subscriber Identification Module) card, and each modem can independently surf the Net, and then access user on upper strata Network the network speeds of two data networks carried out according to actual conditions be superimposed, so as to reach the purpose for improving online bandwidth.Due to Monopolization and limitation of the operator to legacy user's online bandwidth, manufacturer terminal can pass through the network speed superimposing technique scheme and increase use Family online bandwidth, effectively incorporates the online resource of two SIM cards in mobile terminal, and realize true DSDA (Dual SIM Dual active, double card bilateral), and the double LTE (Long Term Evolution, Long Term Evolution) of double card are standby.

Therefore, in order that mobile terminal connects two modems, by mobile terminal with it is outer containing modem Connect the connection of equipment.But during carrying out data transmission between mobile terminal and external equipment, when external equipment and movement When the packet transmitted between terminal is excessive, the situation of packet bust this can be caused to occur.

The content of the invention

It is a primary object of the present invention to propose a kind of data transmission system, method, external equipment and mobile terminal, it is intended to Solve the data during mobile terminal realizes double LTE communications by external equipment, transmitted between external equipment and mobile terminal Wrap excessive, cause the technical problem of packet bust this.

To achieve the above object, a kind of data transmission system provided by the invention, the data transmission system include movement Terminal and external equipment, the mobile terminal includes the first application processor, and is used with embedded user identification card and entity First modem of family identification card connection, first modem include the first data transmitting server, and described the One application processor includes the first reading and writing data forwarding module and the first data being connected with first data transmitting server Forward client；The external equipment includes the second application processor and second modem, the second modem Including the second data transmitting server, second application processor includes the second reading and writing data forwarding module and with described second Second data forwarding client of data transmitting server connection；

Second data transmitting server, for when getting packet to be sent, splitting the data to be sent Bag, obtains subdata bag corresponding to the packet to be sent；The end data packet in the subdata bag is determined, is the knot Beam data bag adds end of identification；The subdata bag is sent to second application processor；

Second application processor, read for the subdata bag to be sent into first data by preset interface Write forwarding module；

The first reading and writing data forwarding module, for when the subdata bag for receiving the second application processor transmission When, obtain the classification logotype in the subdata bag；If determine that the subdata bag is pending according to the classification logotype Packet, then detect whether to receive the subdata bag containing end of identification；If receive containing described in end of identification Subdata bag, then received subdata bag is combined, to obtain packet to be sent corresponding with the subdata bag.

Alternatively, if the first reading and writing data forwarding module is additionally operable to determine the subdata according to the classification logotype Wrap as packet waiting for transmission, then the subdata bag is sent to the first data forwarding client；

The first data forwarding client, for the subdata bag to be sent into first data forwarding service Device；

First data transmitting server, for when receiving the subdata bag containing the end of identification, combining The subdata bag received, to obtain packet to be sent corresponding with the subdata bag.

Alternatively, second data transmitting server is additionally operable to when getting the packet to be sent, calculates institute State the size of packet to be sent；

If the size of the packet to be sent is more than predetermined threshold value, the packet to be sent is split, is obtained described Subdata bag corresponding to packet to be sent.

Alternatively, second data transmitting server is additionally operable to as other subdata bags in addition to the end data packet Add and identified among identical.

In addition, to achieve the above object, the present invention also proposes a kind of data transmission method, the data transmission method application In external equipment, the second modem includes the second data forwarding service being connected with second application processor Device, the data transmission method include：

When second data transmitting server gets packet to be sent, the packet to be sent is split, is obtained To subdata bag corresponding to the packet to be sent；

The end data packet in the subdata bag is determined, end of identification is added for the end data packet；

The subdata bag is sent to second application processor, preset so that second application processor passes through The subdata bag is sent to mobile terminal by interface.

Alternatively, it is described when second data transmitting server gets packet to be sent, split described pending The step of sending packet, obtaining subdata bag corresponding to the packet to be sent includes：

When second data transmitting server gets the packet to be sent, the packet to be sent is calculated Size；

Alternatively, it is described by the subdata bag be sent to before the step of second application processor, in addition to：

Add for other subdata bags in addition to the end data packet and identified among identical.

In addition, to achieve the above object, the present invention also proposes a kind of data transmission method, the data transmission method application In mobile terminal, the mobile terminal includes the first application processor, and knows with embedded user identification card and entity user Do not block the first modem of connection, first modem includes the first data transmitting server, and described first should Include the first reading and writing data forwarding module and the first data forwarding being connected with first data transmitting server with processor Client, the data transmission method include：

When the first reading and writing data forwarding module receives the subdata bag of the application processor of external equipment second transmission When, obtain the classification logotype in the subdata bag；

If determining that the subdata bag is pending packet according to the classification logotype, detect whether to receive and contain There is the subdata bag of end of identification；

If receiving the subdata bag containing end of identification, the received subdata bag of combination, to obtain and institute State packet to be sent corresponding to subdata bag.

Preferably, it is described to be sent when the first reading and writing data forwarding module receives the application processor of external equipment second Subdata bag when, after the step of obtaining the classification logotype in the subdata bag, in addition to：

If determining that the subdata bag is packet waiting for transmission according to the classification logotype, the subdata bag is sent out Give the first data forwarding client, for the first data forwarding client the subdata bag is sent to it is described First data transmitting server, the subdata bag containing the end of identification is being received by first data transmitting server When, the received subdata bag of combination, to obtain packet to be sent corresponding with the subdata bag.

In addition, to achieve the above object, the present invention also proposes a kind of external equipment, the external equipment includes the second application Processor and second modem, the second modem include the second data transmitting server, second application Processor includes the second reading and writing data forwarding module and the second data forwarding being connected with second data transmitting server visitor Family end；The external equipment is applied to the data transmission method as described above for being applied to external equipment.

In addition, to achieve the above object, the present invention also proposes a kind of mobile terminal, the mobile terminal includes the first application Processor, and the first modem being connected with embedded user identification card and entity user identification card, described first adjusts Modulator-demodulator includes the first data transmitting server, first application processor include the first reading and writing data forwarding module and with First data forwarding client of the first data transmitting server connection；The mobile terminal is applied to as described above should Data transmission method for mobile terminal.

The present invention provides a kind of data transmission system, method, external equipment and mobile terminal, by when the external equipment The second data transmitting server when getting packet to be sent, split the packet to be sent, obtain described to be sent Subdata bag corresponding to packet；The end data packet in the subdata bag is determined, is terminated for end data packet addition Mark；The subdata bag is sent to the second application processor being connected with second data transmitting server, for institute State the second application processor and the subdata bag is sent to by mobile terminal by preset interface.When mobile terminal receive it is external During the packet that equipment is sent, detect whether to receive the subdata bag containing end of identification, if receiving containing end of identification Subdata bag when, by the subdata package received synthesize a complete packet, with obtain external equipment transmission it is complete Whole packet to be sent.Avoid during external equipment and mobile terminal carry out data transmission, by the number transmitted It is excessive according to wrapping, cause the situation of packet bust this to occur.

Brief description of the drawings

Fig. 1 is the schematic diagram of the LTE network framework of one embodiment of the invention；

Fig. 2 is mobile terminal and the first hardware architecture diagram of external equipment communication connection in the embodiment of the present invention；

Fig. 3 is mobile terminal and a kind of entity structure schematic diagram of external equipment communication connection in the embodiment of the present invention；

Fig. 4 is mobile terminal and second of structural representation of external equipment communication connection in the embodiment of the present invention；

Fig. 5 is the schematic flow sheet for the data transmission method preferred embodiment for being applied to external equipment in the present invention；

Fig. 6 is in the embodiment of the present invention when second data transmitting server gets packet to be sent, is split The packet to be sent, obtain a kind of schematic flow sheet of subdata bag corresponding to the packet to be sent；

Fig. 7 is the schematic flow sheet for the data transmission method preferred embodiment for being applied to mobile terminal in the present invention.

The realization, functional characteristics and advantage of the object of the invention will explain referring to the drawings in conjunction with the embodiments.

Embodiment

It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.

Describe to realize the mobile terminal of each embodiment of the present invention referring now to accompanying drawing.In follow-up description, use For represent element such as " module ", " part " or " unit " suffix only for be advantageous to the present invention explanation, itself Not specific meaning.Therefore, " module " can be used mixedly with " part ".

Fig. 1 is the schematic diagram of the LTE network framework of one embodiment of the invention.The LTE network framework of one embodiment of the invention Including：One or more mobile terminals (user equipment, UE) 100, E-UTRAN (Evolved UMTS Terrestrial Radio Access Network, the UMTS Terrestrial radio access network of evolution) (non-label in figure), evolution point Group core (EPC) (non-label in figure), home subscriber servers (HSS) 107, network (for example, internet) (non-label in figure) And circuit switching system (non-label in figure).

E-UTRAN includes evolution B node (eNodeB) 101 and other eNodeB 102.ENodeB 101 is provided towards shifting The user plane of dynamic terminal 100 and the protocol terminations of chain of command.ENodeB 101 can be connected to other eNodeB via X2 interface. ENodeB 101 is alternatively referred to as base station, base transceiver station, radio base station, wireless set, transceiver function, basic service Collection, extended service set or some other suitable terms.ENodeB 101 is that mobile terminal 100 provides the access for going to EPC Point.

ENodeB 101 is connected to EPC by S1 interfaces.EPC includes mobile management entity (EEM) 104, other moving tubes Manage entity 106, gateway 103, and packet data network (PDN) gateway 105.Mobile management entity 104 is processing movement The control node of signaling between terminal 100 and EPC.Mobile management entity 104 provides carrying and connection management.All User IPs Packet is transmitted by gateway 103, and gateway 103 is itself coupled to PDN Gateway 105.PDN Gateway 105 provides UE IP Address is distributed and other functions.PDN Gateway 105 is connected to network, for example, internet.

Circuit switching system includes interaction solution module (IWS) 108, mobile switching centre (MSC) 109, base station 110 With movement station 111.In one aspect, circuit switching system can pass through IWS and MME (Mobility Management Entity, mobile management entity) communicated with EPS (Evolved Packet System, the grouping system of evolution).

Fig. 2 is mobile terminal and a kind of hardware architecture diagram of external equipment communication connection in the embodiment of the present invention. In the embodiment of the present invention, mobile terminal 100 is connected by preset interface with external equipment 200.Mobile terminal 100 is included at first Reason chip 001 and the first radio-frequency module 12 being connected with the first process chip 001.Wherein, the first process chip 001 includes first Application processor (Application Processor) 10, connect with entity user identification card 14 and embedded user identification card 13 The first modem 11 (modem1) and RPM (Resource Power Manager, resource power supervisor) 15 connect.Outside Connecing equipment 200 includes second processing chip 002 and the second radio-frequency module 22 being connected with second processing chip 002.Wherein, second Process chip 002 includes the second application processor 20 and second modem (modem2) 21.

The inner frame of first application processor 10 and the second application processor 20 includes application layer, ccf layer etc., can locate Manage complicated logical operation and carry out task distribution etc..In embodiments of the present invention, application processor refers to Android operations system System, and the various apk (Android Package, Android installation kit) based on Android operation system.First application processing The application processor 20 of device 10 and second is realized by preset interface and connected, and provides the user interactive interface, the behaviour that user is inputted (for example, the operational order for the relevant startup video calling that user is inputted by user interface) is instructed to be transferred to the first modulatedemodulate Device 11 or second modem 21 are adjusted, should for example, carrying out two to realize the definition and transmission of data between two processors Control with chip boot sequence when the dormancy of processor, wake-up, the control of synchronization, switching on and shutting down etc..

First application processor 10 is connected by preset interface with the second application processor 20, to realize mobile terminal 100 With the connection between external equipment 200.In embodiments of the present invention, preset interface be USB (Universal Serial Bus, USB), USB is multiplexed out three data passages, is respectively used to the first application processor 10 and the second application processor The interaction of user data, signaling data and SIM card authorization data between 20.That is the first application processor 10 and the second application processing Device 20 passes through USB transmission user data, signaling data and SIM card authorization data.Wherein, user data includes but is not limited to surf the Net Caused data, picture and chat message data；Signaling data includes but is not limited to the control data of switching on and shutting down, switchs flight mould The control data of formula, the control data of dispaly state signal；SIM card authorization data includes but is not limited to IMSI (International Mobile Subscriber Identification Number, international mobile subscriber identity) and Ki (key identifier, KI).

Specifically, the first application processor 10 and the second application processor 20 enter line number by OTG (On-The-Go) technology According to interaction.By OTG technologies, the first modem 11 in mobile terminal 100 can pass through entity user identification card 14 or embedding Enter the SIM card parameter in formula Subscriber Identity Module 13 to access eNodeB 101, second modem 21 can pass through entity user The SIM card parameter of identification card 14 or embedded user identification card 13 accesses eNodeB 101, and SIM card parameter includes but is not limited to SIM card authorization data.

First modem 11 and second modem 21 include the protocol stack of the network formats of various network interactions, Protocol stack includes LTE/WCDMA (Wideband Code Division Multiple Access, WCDMA)/GSM (Global System for Mobile Communication, global system for mobile communications)/TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, synchronous time division CDMA)/CDMA (Code Division Multiple Access, CDMA)/EDGE (Enhanced Data Rate for GSM Evolution, strong type Data for GSM Evolution) etc. protocol code as defined in inside communication standard.Mobile terminal 100 is logical Agreement is crossed to interact with carrier network, that is, carry out data traffic online, VOLTE (Voice Over LTE) makes a phone call or Make a phone call in CS (Circuit Switched, circuit switching) domain.First modem 11 and second modem 21 are also used In management and control to SIM card etc..

In embodiments of the present invention, it is transmitted to after the data processing that the first radio-frequency module 12 is used to transmit mobile terminal 100 Mobile terminal 100 is transmitted to after eNodeB 101 (base station network), and the data processing for eNodeB 101 to be transmitted.Second ENodeB 101 (base station network) is transmitted to after the data processing that radio-frequency module 22 is used to transmit external equipment 200, and is used for External equipment 200 is transmitted to after the data processing that eNodeB 101 is transmitted.

Wireless access technology involved by first radio-frequency module 12 and the second radio-frequency module 22 can include LTE, GSM, GPRS (General Packet Radio Service, general packet radio service), CDMA, EDGE, WLAN (Wireless Local Area Networks, WLAN), CDMA-2000, TD-SCDMA, WCDMA, WIFI (Wireless Fidelity, Wireless Fidelity) etc..

Embedded user identification card 13 and entity user identification card 14 are connected with the first modem 11.Wherein, it is embedded Formula Subscriber Identity Module 13 is connected by serial ports with the first modem 11, and serial ports includes but is not limited to universal asynchronous receiving-transmitting transmission Device (UART).It should be noted that embedded user identification card 13 is ESIM (Embedded Subscriber Identity Module) block, associated card parameter writes direct the ESIM cards, and the ESIM cards include programmable SIM card chip；The embedded use Family identification card 13 includes memory module and chip operating system (Chip Operating System, COS), and the memory module can For EFS (Encrypting File System, encrypted file system), memory module is used to store embedded user identification card 13 Authorization data.

Embedded user identification card 13 and entity user identification card 14 can store related to similar and different technical standard The user profile of connection, for providing the phase needed for mobile communication business (CS speech businesses, PS data services and PS speech businesses) Data are closed, and in its storage inside user profile, short message, execution authentication arithmetic and produce cryptographic keys etc..In specific non-limit In property example processed, technical standard can be the 2G communication technologys, for example, GSM, EDGE), the 3G communication technologys are (for example, WCDMA, TD- SCDMA), the 4G communication technologys (for example, LTE), or any other mobile communication technology (for example, 4G etc.).

When embedded user identification card 13 needs to carry out network registry, sent out by Wireless Fidelity (WIFI) network of unlatching Send and download request to cloud server corresponding to embedded user identification card 13 comprising service menu data, with from cloud service Device obtains the data message of embedded user identification card 13., will when getting the data message of embedded user identification card 13 In the memory module of data message write-in embedded user identification card 13, to realize that the network of embedded user identification card 13 is noted Volume.Wherein, data message can include：IMSI, Ki (key identifier, KI), ICCID (Integrated Circuit Card Identifier), PIN (personal identification number, Personal Identification Number), PUK (PIN Unlocking Key).It is understood that the card number resource of each operator is stored in cloud server.

Because current mobile terminal 100 only has a set of radio-frequency module, when mobile terminal 100 has two Subscriber Identity Modules When, two Subscriber Identity Modules of mobile terminal 100 are the relation of time-sharing multiplex using the set radio frequency, can not be taken simultaneously.Example Such as, in two Subscriber Identity Module standard-sized sheets, conversed wherein a Subscriber Identity Module only handles GSM, and another Subscriber Identity Module The 4G network informations are handled, which kind of network performed, is not limited herein for which specific Subscriber Identity Module.Therefore current radio frequency double card This framework of time-sharing multiplex has only accomplished that (technical standard is LTE to LTE+GSM i.e. corresponding to a Subscriber Identity Module, another use Technical standard corresponding to the identification card of family is GSM).

It is understood that although existing mobile terminal 100 can support Dual-user identification card, due to mobile terminal 100 in the case of registered network, and what two Subscriber Identity Modules were supported is the network of different technologies standard, one support 2G or 3G, another support 4G, during causing the use of mobile terminal 100, surfing flow speed is slower.In the embodiment of the present invention In, mobile terminal 100 is by USB connections external equipment 200, because external equipment 200 includes second modem 21 and the Two radio-frequency modules 22, and the second radio-frequency module 22 supports 4G networks, therefore, mobile terminal 100 can pass through USB and external equipment 200 interactions, so that mobile terminal 100 possesses double LTE functions (now embedded user identification card 13 and entity user identification The technical standards of the management of card 14 are LTE standard, the wireless access involved by the first radio-frequency module 12 and the second radio-frequency module 22 Technology is LTE).

In embodiments of the present invention, data transmission system includes mobile terminal 100 and external equipment 200, mobile terminal 100 The implementation method for possessing double LTE functions by external equipment 200 has two kinds：1. entity user identification card 14 passes through the second modulatedemodulate Device 21 is adjusted to support LTE, detailed process is：First modem 11 will need to access LTE network in entity user identification card 14 Data be sent to the first application processor 10, received data is sent to external by the first application processor 10 by USB Received data is sent to second modem by the second application processor 20 of equipment 200, the second application processor 20 21, the second radio-frequency module 22 is transmitted to by second modem 21, received data is passed through LTE by the second radio-frequency module 22 Network is sent；Embedded user identification card 13 supports LTE by the first modem 11, to realize mobile terminal 100 Double LTE can be supported.2. embedded user identification card 13 supports LTE by second modem 21, detailed process is：First adjusts The data for needing to access LTE network in embedded user identification card 13 are sent to the first application processor 10 by modulator-demodulator 11, Received data is sent to the second application processor 20 of external equipment 200 by the first application processor 10 by USB, and second Received data is sent to second modem 21 by application processor 20, and second is transmitted to by second modem 21 Radio-frequency module 22, the second radio-frequency module 22 send received data by LTE network；Entity user identification card 14 is logical Cross the first modem 11 and support LTE, to realize that mobile terminal 100 can support double LTE.

When mobile terminal 100 is not connected by USB with external equipment 200, the skill corresponding to entity user identification card 14 Art standard is GSM, and for carrying out speech communication, embedded user identification card 13 supports LTE by the first modem 11, uses In pass through 4G networks carry out data access.

For entity user identification card 14 when being interacted with mobile terminal 100, mobile terminal 100 detects entity user identification card 14 The signal of presence or absence is only in the instantaneous generation of start, in the presence of start can't detect entity user identification card 14, mobile terminal 100 will be prompted to " insertion Subscriber Identity Module ".After mobile terminal 100 is started shooting, mobile terminal 100 and entity user identification card 14 it Between communication in 28 seconds once, complete the communication check (for example, Subscriber Identity Module whether in place etc.) of some fixations.

The RPM15 of mobile terminal 100 is used for the various resources of management and control, including clock sources, bus resource, PMIC (Power Management IC, power management integrated circuit, i.e., the voltage of each chip), DDR (Memory Allocation), and managing chip The deadline that the interruption of dormancy awakening and application processor wake up.The subsystems of mobile terminal 100, needing resource When, apply for resource to RPM15, subsystems include the first application processor 10, the first modem 11, PRONTO respectively (WIFI/ bluetooths, NFC (Near Field Communication, near-field communication) etc.), LPASS (Low power audio Subsystem, low-power consumption audio subsystem), RPM15 is used for determining the resting state of the system of mobile terminal 100, is specifically, Voting mechanisms of the RPM15 based on subsystems realizes that, when subsystems all throw dormancy ticket, RPM15 can just make movement The whole system of terminal 100 carries out dormancy.And working as mobile terminal 100 has a sub or multiple subsystems to throw the ticket for opposing dormancy, The whole system of mobile terminal 100 all can not dormancy.

After the whole system dormancy of mobile terminal 100, if to restart operation, it is necessary to wake up at the first application Reason device 10 is interacted with carrying out the transmission of data.

In the case where mobile terminal 100 and external equipment 200 are by USB communication connections, wake-up mode can be following three Kind：

1st, when the first application processor 10 receives signaling data, by USB send shake hands keyword to second application at Device 20 is managed, to wake up the second application processor 20.

2nd, when second modem 21 receives user data, the second application processor 20 is waken up, by the second application Reason device 20 shakes hands keyword to the first application processor 10 by USB transmission, to wake up the first application processor 10.

3rd, second modem 21 periodically searches paging request, with active activation oneself.If receiving paging request, Second modem 21 then wakes up the second application processor 20, and key of shaking hands is sent by USB by the second application processor 20 Word gives the first application processor 10, to wake up the second application processor 20.

It should be noted that keyword of shaking hands can use the character mark of fixed word length, it is to be not in normal data packet Field.Such as available 0xF9F9F9 or 0x9F9F9F represents keyword of shaking hands, and can be waken up in sleep by keyword of shaking hands The first application processor 10 or the second application processor 20 of state.

In addition, second modem 21 can be with periodic wakeup oneself, to carry out location updating in mobile terminal 100 When, interaction of shaking hands is carried out with base station, need not now wake up the first application processor 10.

Reference picture 3, Fig. 3 are mobile terminal 100 of the present invention and the entity structure schematic diagram of the communication connection of external equipment 200. Mobile terminal 100 is connected by USB and the communication of external equipment 200, wherein, mobile terminal includes but is not limited to mobile phone, PC (Personal Computer, PC) or PAD (Personal Digital Assistant, personal digital assistant), outside Connect equipment 200 and include but is not limited to wireless Internet card and data card.It should be noted that mobile terminal 100 by USB with it is external The link position of equipment 200 is not limited to shown in Fig. 3, and mobile terminal 100 can be set to be set by USB with external according to specific needs Standby 200 link position.

Reference picture 4, as shown in Figure 4, the first modem 11 drive including UIM (User Identity Module) 112nd, the first SIM card module agency 113, remote sim data access server114, the first blocking module 115 and the first data turn Send out server 116 (data forwarding server1).First application processor 10 includes the first data forwarding client 011, and (data turn Send out client1) and the first reading and writing data forwarding module 012.Second modem 21 include modem Non-Access Stratums part 212, Second SIM card module agency 213, remote sim data access client214, the second blocking module 215 and the second data forwarding clothes Business device 216 (data forwarding server2), the second application processor 20 include the second reading and writing data forwarding module 022 and the second number According to forwarding client 021 (data forwarding client2).

Wherein, UIM drivings 112 store data necessary to access network, such as UIM ID, authorization data AKY values, IMSI Number etc..

Remote sim data access server114 and remote sim data access client214 is used to realize the first modulatedemodulate Adjust the transmission of SIM card data between device 11 and second modem 21.

First blocking module 115 is used to intercept the SIM card data transmitted needed for remote sim data access server114； Second blocking module 215 is used to intercept the SIM card data transmitted needed for remote sim data access client214.Pass through first The blocking module 215 of blocking module 115 and second realizes remote sim data access server114 and remote sim data access The interaction of SIM card data in client214.

Second data transmitting server 216 and the second data forwarding client 021 are corresponding, for realizing the second modulatedemodulate Adjust the data transfer between the application processor 20 of device 21 and second；First data transmitting server 116 and the first data forwarding visitor Family end 011 is corresponding, for realizing the data transfer between the first modem 11 and the first application processor 10.

First reading and writing data forwarding module 012 and the second reading and writing data forwarding module 022 are used to realize that second should by USB With the data transfer between the application processor 10 of processor 20 and first.

Hardware configuration based on the communication connection of above-mentioned LTE network framework figure, mobile terminal 100 and external equipment 200 shows The problem of intention, entity structure schematic diagram and prior art are present, propose each embodiment of the present invention.

It is proposed a kind of first embodiment of data transmission system of the present invention.In the present embodiment, data transmission system includes Mobile terminal 100 and external equipment 200, mobile terminal 100 include the first application processor, and with embedded user identification card 13 and entity user identification card 14 connect the first modem 11, the first modem 11 include the first data forwarding clothes Be engaged in device 116, the first application processor 10 include the first reading and writing data forwarding module 012 and with the first data transmitting server 116 First data forwarding client 011 of connection；External equipment 200 includes the second application processor 20 and second modem 21, second modem 21 includes the second data transmitting server 216, and the second application processor 20 includes the second reading and writing data Forwarding module 022 and the second data forwarding client 021 being connected with the second data transmitting server 216.

Second data transmitting server 216, for when getting packet to be sent, splitting packet to be sent, obtaining To subdata bag corresponding to packet to be sent.

When the second data transmitting server 216 of external equipment 200 gets packet to be sent, the second data forwarding Server 216 splits packet to be sent, obtains subdata bag corresponding to packet to be sent.Wherein, packet to be sent can Caused packet when receiving eNodeB 101 request of data for second modem 21, or moved to need to obtain The packet such as caused during the data of embedded user identification card 13 or entity user identification card 14 in dynamic terminal 100.Second Data transmitting server 216 can be split, the fixed size can in process data packet to be sent is split according to fixed size Set according to specific needs, such as may be configured as 8 bytes, or 6 bytes etc..Such as when packet to be sent is 20 words Section, when fixed size is 6 bytes, the subdata bag for splitting gained is the subdata bag that 3 sizes are 6 bytes, one big Small is the subdata bag of 2 bytes.

Second data transmitting server 216 is additionally operable to determine the end data packet in subdata bag, adds for end data packet Add end of identification.

When the second data transmitting server 216 obtains subdata bag corresponding to packet to be sent, the second data forwarding Server 216 determines last packet in fractionation resulting bottle packet, will split gained in process data packet to be sent Last data packet recording be end data packet, for end data packet add end of identification.Wherein, end of identification can be according to tool Body needs and set, and 0 is such as could be arranged to, it can also be provided that other marks that can recognize that end data packet.It can manage Solution, the size of end data packet are less than or equal to fixed size.When during packet to be sent is split, if treating The size for sending packet is less than or equal to fixed size, then does not perform fractured operation to packet to be sent, pending for this Packet is sent to add an end of identification.

Specifically, it is that the process that packet addition identifies is：Addition mark during package operation is carried out to packet, package is just It is to add packet header to one piece of data, packet is divided into packet header and inclusion two parts content.Packet header is fixed-size structure, In head-coating structure body, have individual structure member variable include split after the length of subdata bag and customized, be used for Represent the mark of subdata bag after splitting.

Second data transmitting server 216 is additionally operable to subdata bag being sent to the second application processor 20.

Second application processor 20, for subdata bag to be sent into the first reading and writing data forwarding module by preset interface 012。

After the second data transmitting server 216 is that end data packet adds end of identification, the subdata of gained will be split Wrap (including end data packet), be sent to the second application processor 20 being connected with the second data transmitting server 216, for the Subdata bag is sent to mobile terminal 100 by two application processors 20 by preset interface.In the present embodiment, preset interface is USB, in other embodiments, preset interface are alternatively other interfaces available for data transfer.

Specifically, subdata bag is sent to the second number of the second application processor 20 by the second data transmitting server 216 According to forwarding client 021, after the second data forwarding client 021 receives subdata bag, subdata bag is transmitted into second should With the second reading and writing data forwarding module 022 of processor 20, is sent to by USB by the second reading and writing data forwarding module 022 First reading and writing data forwarding module 012 of one application processor 10.

During subdata bag is sent to the second data forwarding client 021 by the second data transmitting server 216, the Two data transmitting servers 216 are sent to the second data forwarding client from front to back according to the order for splitting resulting bottle packet 021.The sequencing of subdata bag for such as splitting gained is：X1, x2, x3, then the order of subdata bag is sent first to send x1, X2 is retransmited, finally sends x3.

Subdata bag is sent to the detailed process of the second data forwarding client 021 by the second data transmitting server 216 For：Subdata bag is cached to second and sent in extra buffer by the second data transmitting server 216.Now, the second data turn Hair client 021 can get the subdata bag in the second transmission extra buffer by two methods.①：When the second data turn Hair server 216 caches subdata bag to the second transmission extra buffer, and the second data transmitting server 216 sends prompting Message gives the second data forwarding client 021, to prompt the second data forwarding client 021 to cache subdata bag to second Send in extra buffer.When the second data forwarding client 021 receives the prompting message, the second data forwarding client 021 extracts the subdata bag from the second reception extra buffer corresponding with the second transmission extra buffer.Wherein, the second number Prompting message is sent according to forwarding server 216 to take to the communication port of the second data forwarding client 021 and the second data forwarding It is different to the communication port of the second data forwarding client 021 that business device 216 sends subdata bag.Such as the second data forwarding service Device 216 will be prompted to message by GPIO (General Purpose Input Output, general I/O port) port and send To the second data forwarding client 021.

②：Second monitoring in real time of data forwarding client 021 receives with the second transmission extra buffer corresponding second faces When buffering area state.When the second data forwarding client 021 monitors to write subdata bag in the second reception extra buffer When, the second data forwarding client 021 second receives in extra buffer and extracts the subdata bag.It should be noted that second Send extra buffer and the second reception extra buffer correspond to same physical address, therefore second receives extra buffer Synchronously change with the capability value of the second transmission extra buffer.When second sends extra buffer increase, second receives Extra buffer also synchronously increases；When second, which sends extra buffer, reduces, the second reception extra buffer also synchronously reduces. Because the second transmission extra buffer and the second reception extra buffer correspond to same physical address, therefore, when the second number When according to forwarding server 216, subdata bag is cached to the second transmission extra buffer, the second data transmitting server 216 The subdata bag is monitored in the second interim reception buffering area, and extracts the subdata bag.

Further, when the second data forwarding client 021 extracts subdata bag from the second reception extra buffer Afterwards, the second data transmitting server 216 deletes the subdata bag cached in the second transmission extra buffer.

Further, before the application processor 20 of second modem 21 and second transmits data, at the second application Reason device 20 needs to be initialized.Second application processor 20 initialization detailed process be：When the second application processor 20 from When resting state enters wake-up states, the second data forwarding client 021 of the second application processor 20 counts to corresponding second Request message is sent according to forwarding server 216, to ask the second data transmitting server 216 as the second data forwarding client The 021 user's mark of distribution one.It should be noted that in external equipment 200 and mobile terminal 100, the one of modem Individual server correspond to the multiple client of application processor.Turn when the second data transmitting server 216 receives the second data Send out client 021 send request message after, the second data transmitting server 216 according to the request message send user identify to Second data forwarding client 021.When the second data forwarding client 021 is successfully received user mark, the second data Client 021 is forwarded to send test data bag to the second data transmitting server 216, wherein, carried in the test data bag User identifies.When the second data transmitting server 216 is successfully received test data bag, given according to backtracking notification message Second data forwarding client 021.When the second data forwarding client 021 is successfully received notification message, show that second should Initialized successfully with processor 20.After the second application processor 20 initializes successfully, by the He of the second data forwarding client 021 The mark of identification field in second data transmitting server 216 is arranged to specific identifier, to show the second application processor 20 Initialize successfully.It should be noted that in the second data forwarding client 021 and the second data transmitting server 216, mark Multiple flag bits in field be present, different flag bits has different implications, if any flag bit be used for represent second application The init state of processor, some flag bits represent end of identification.

In embodiments of the present invention, have defined in the second data transmitting server 216 and the second data forwarding client 021 For QMI (Qualcomm Message Interface) agreement of data transfer, in QMI agreements, mark is defined (flag) field and data (data) field, wherein, data fields are used for data cached bag.In data fields, there is provided institute The predetermined threshold value of energy transmission packet size.It is understood that the predetermined threshold value of packet can be according to specific in data fields Need and set, such as may be configured as 8 bytes, or 12 bytes etc..

Further, when packet to be sent need not be split, the second data transmitting server 216 is by data to be sent Bag is sent to the process of the first reading and writing data forwarding module 012 with the subdata bag for splitting gained is sent into the first reading and writing data The process of forwarding module 012 is similar, will not be repeated here.

First reading and writing data forwarding module 012, for when receive the second application processor 20 transmission subdata bag when, Obtain the classification logotype in subdata bag；If determining that subdata bag is pending packet according to classification logotype, detection is The no subdata bag received containing end of identification；If receiving the subdata bag containing end of identification, what combination was received Subdata bag, to obtain packet to be sent corresponding with subdata bag.

When the first reading and writing data forwarding module 012 receives the subnumber of the application processor 20 of external equipment 200 second transmission During according to bag, the classification logotype in subdata bag is obtained, and the type of subdata bag is judged according to classification logotype.If according to classification mark Know and determine that subdata bag is pending packet, the first reading and writing data forwarding module 012 then detects whether to receive containing knot The subdata bag of beam identification.If receiving the subdata bag containing end of identification, the first reading and writing data forwarding module 012 then combines The subdata bag received, to obtain complete packet to be sent corresponding with subdata bag.It should be noted that the first number According to read-write forwarding module 012 during received subdata bag is combined, according to the subdata bag received order from Front to back combines subdata bag, complete packet to be sent is obtained, to realize between external equipment 200 and mobile terminal 100 Data transfer.

It should be noted that classification logotype is used for the type for distinguishing packet.In the present embodiment, the type bag of packet Include two kinds, it is a kind of be need not be sent to the first data transmitting server 116, it is necessary to the first reading and writing data forwarding module 012 Carry out handling pending packet, another kind is to need to be sent to 116 packet waiting for transmission of the first data transmitting server. Classification logotype can be set according to specific needs, and such as when classification logotype is 00, it is to send out to show received data bag Give the first data transmitting server 116, it is necessary to the packet that the first reading and writing data forwarding module 012 is handled；Work as class When not being identified as 01, it is the packet for needing to be sent to the first data transmitting server 116 to show received data bag.

The present embodiment by when the second data transmitting server 216 of external equipment 200 gets packet to be sent, Packet to be sent is split, obtains subdata bag corresponding to packet to be sent；The end data packet in subdata bag is determined, is End data packet adds end of identification；Subdata bag is sent to the second application being connected with the second data transmitting server 216 Processor 20, so that subdata bag is sent to mobile terminal 100 by the second application processor 20 by preset interface.When mobile whole When end 100 receives the packet of the transmission of external equipment 200, detect whether to receive the subdata bag containing end of identification, if When receiving the subdata bag containing end of identification, the subdata package received is synthesized into a complete packet, with The complete packet to be sent sent to external equipment 200.Avoid and enter line number in external equipment 200 and mobile terminal 100 According in transmitting procedure, by the packet transmitted is excessive, the situation of packet bust this is caused to occur.

Further, the second embodiment of data transmission system is proposed.The second embodiment of data transmission system and first The difference of embodiment is：

If the first reading and writing data forwarding module 012 is additionally operable to determine that subdata bag is data waiting for transmission according to classification logotype Bag, then be sent to the first data forwarding client 011 by subdata bag；

First data forwarding client 011, for subdata bag to be sent into the first data transmitting server 116；

First data transmitting server 116, for when receiving the subdata bag containing end of identification, combination to be received Subdata bag, to obtain packet to be sent corresponding with subdata bag.

If determining that subdata bag is packet waiting for transmission according to classification logotype, the second reading and writing data forwarding module 022 will The subdata bag received is transmitted to the first data forwarding client 011.First data forwarding client 011 receives subdata Bao Hou, subdata bag is sent to the first data transmitting server 116.When the first data transmitting server 116 receives subnumber During according to bag, detect whether to receive the end data packet containing end of identification.If receiving end data packet, the first data forwarding The subdata bag received is then combined into a complete packet by server 116 from front to back in the order received, with Obtain packet to be sent corresponding with subdata bag.If not receiving the end data packet containing end of identification, the first data turn Hair server 116 then continues to the subdata bag of the first data forwarding client 011 transmission.

It should be noted that have the first transmission extra buffer in the first data forwarding client 011, and it is corresponding, first There is the first reception extra buffer in data transmitting server 116.First data transmitting server 116 and the first data forwarding visitor Between data transmission procedure and the second data transmitting server 216 and the second data forwarding client 021 between family end 011 Data transmission procedure is similar, will not be repeated here.

Further, when the first data transmitting server 116 receives packet to be sent, packet to be sent is led to Cross the first blocking module 115, remote sim data access server114 and the first SIM card module agency 113 and be sent to UIM drivings 112, UIM driving 112 obtained according to packet to be sent from entity user identification card 14 corresponding to data response pending send data Bag, met with a response packet, and response data packet is pressed into backtracking to external equipment 200.UIM drivings 112 are according to be sent Packet obtains corresponding data from entity user identification card 14 and responded in the process data packet to be sent, and UIM drivings 112 will not Directly interacted with the file storage module in entity user identification card 14, but the first COS into entity user identification card 14 (Chip Operating System, chip operating system) operating system sends data acquisition request, and then entity user identifies The COS operating systems of card 14 obtain data based on the data acquisition request in file storage module, then by the data of acquisition UIM drivings 112 are transmitted further to, to realize the response of packet to be sent.

UIM driving 112 obtained according to packet to be sent from embedded user identification card 13 corresponding to data response pending Packet is sent, the principle for the packet that meets with a response send packet with obtaining data response pending from entity user identification card 14 Principle is consistent, will not be repeated here.

The present embodiment is detected whether to receive and contained when mobile terminal 100 receives the packet of the transmission of external equipment 200 There is the subdata bag of end of identification, if receive the subdata bag containing end of identification, the subdata package received is closed Into a complete packet, to obtain the complete packet to be sent of the transmission of external equipment 200, make the He of external equipment 200 The Successful transmissions big data bag of mobile terminal 100.

Further, when the first reading and writing data forwarding module 012 or the first data transmitting server 116 are received containing in Between in the subdata bag that identifies, subdata bag of the storage containing middle mark, until receiving the subdata containing end of identification Bao Hou, the subdata bag containing end of identification and the subdata package containing centre mark are synthesized into a complete subdata Bag, to obtain packet to be sent corresponding to subdata bag.

The present embodiment judges whether to need the operation for performing combination subdata bag, improved by the mark in subdata bag The success rate of data transfer between mobile terminal 100 and external equipment 200.

Further, the 3rd embodiment of data transmission system is proposed.The 3rd embodiment of data transmission system and first The difference of embodiment is：

Second data transmitting server 216 is additionally operable to, when getting packet to be sent, calculate packet to be sent Size.

If the size of packet to be sent is more than predetermined threshold value, packet to be sent is split, obtains packet to be sent Corresponding subdata bag.

When the second data transmitting server 216 of external equipment 200 gets packet to be sent, the second data forwarding Server 216 calculates the size of packet to be sent, and judges whether the size of packet to be sent is more than predetermined threshold value.If treat The size for sending packet is more than predetermined threshold value, and the second data transmitting server 216 then splits packet to be sent, obtained pending Send subdata bag corresponding to packet.It should be noted that in addition to last subdata bag, the subdata bag of gained is split Size should be equal to predetermined threshold value.The predetermined threshold value is data field definitions in the second data transmitting server 216QMI agreements Size.

The detailed process that second data transmitting server 216 calculates data package size to be sent is：Second data forwarding takes Business device 216 parses packet to be sent, obtains the packet header of packet to be sent, the big of packet to be sent is obtained from packet header It is small.Wherein, packet to be sent is TLV forms, and TLV forms are BER (Basic Encoding Rules, BER Basic Encoding Rules) One kind of coding, full name are Type (type), Length (size), Value (value), and T fields represent the class of packet to be sent Type, L field represent the size of packet to be sent, and V fields are often used for depositing the content of packet to be sent.

Further, if the size of packet to be sent is less than or equal to predetermined threshold value, the second data transmitting server 216 do not split packet to be sent then, end of identification are added for packet to be sent, by the data to be sent containing end of identification Bag is sent to the second application processor 20, so that packet to be sent is sent to movement by the second application processor 20 by USB Terminal 100.

The present embodiment is by first calculating data package size to be sent, only when the size of packet to be sent is more than default threshold During value, packet to be sent is just split, is also torn open when preventing the size of packet to be sent to be less than or equal to predetermined threshold value Divide operation, so as to cause the waste of system resource, and reduce the speed of data transfer.

Further, the second data transmitting server 216 is additionally operable to as other subdata Bao Tian in addition to end data packet Add and identified among identical.

After the subdata bag that the second data transmitting server 216 is split, determine in subdata bag except terminating number Other subdata bags outside according to bag, and add for other subdata bags and identified among identical.It should be noted that middle mark It is different with end of identification, such as when representing end of identification with 1, middle mark can be represented with 0.

The present embodiment determines that received data bag is the subdata bag after splitting by middle identify, and is not complete Packet, the subdata bag for after mobile terminal 100 receives a sub- packet, making an immediate response received is prevented, so as to lead The situation of response failure is caused to occur.

It should be noted that the present embodiment is using external equipment as transmitting terminal, mobile terminal is to illustrate exemplified by receiving terminal Data transmission procedure between external equipment and mobile terminal.In other embodiments, can also be using mobile terminal as transmission End, external equipment illustrate the data transmission procedure between external equipment and mobile terminal as receiving terminal.It is understood that Mobile terminal is as transmitting terminal, and external equipment is as receiving terminal and mobile terminal as receiving terminal, and external equipment is as transmitting terminal Data transmission principle it is consistent, will not be repeated here.

The present invention also provides a kind of data transmission method applied to external equipment 200.

Reference picture 5, Fig. 5 are the flow for the data transmission method preferred embodiment for being applied to external equipment 200 in the present invention Schematic diagram.

The present embodiment proposes a kind of data transmission method, in the present embodiment, there is provided the embodiment of data transmission method, , can be with different from herein it should be noted that, although show logical order in flow charts, but in some cases Order performs shown or described step.

Data transmission method is applied to pass through in the external equipment 200 that preset interface is connected with mobile terminal 100, external to set Standby 200 include the second application processor 20 and second modem 21, and second modem 21 includes the second data forwarding Server 216, the second application processor 20 include the second reading and writing data forwarding module 022 and with the second data transmitting server Second data forwarding client 021 of 216 connections.Mobile terminal 100 includes the first application processor, and and embedded user The first modem 11 that identification card 13 and entity user identification card 14 connect, the first modem 11 include the first data Forwarding server 116, the first application processor 10 include the first reading and writing data forwarding module 012 and with the first data forwarding service The first data forwarding client 011 that device 116 connects.Data transmission method includes：

Step S10, when the second data transmitting server 216 gets packet to be sent, packet to be sent is split, Obtain subdata bag corresponding to packet to be sent.

When the second data transmitting server 216 of external equipment 200 gets packet to be sent, the second data forwarding Server 216 splits packet to be sent, obtains subdata bag corresponding to packet to be sent.Wherein, packet to be sent can Caused packet when receiving eNodeB 101 request of data for second modem 21, or moved to need to obtain Caused packet the etc. during data of embedded user identification card 13 or entity user identification card 14 in dynamic terminal 100.Second Data transmitting server 216 can be split, the fixed size can in process data packet to be sent is split according to fixed size Set according to specific needs, such as may be configured as 8 bytes, or 6 bytes etc..Such as when packet to be sent is 20 words Section, when fixed size is 6 bytes, the subdata bag for splitting gained is the subdata bag that 3 sizes are 6 bytes, one big Small is the subdata bag of 2 bytes.

Step S20, the end data packet in subdata bag is determined, end of identification is added for end data packet.

When the second data transmitting server 216 obtains subdata bag corresponding to packet to be sent, the second data forwarding Server 216 determines to split last packet in the subdata bag of gained, will split institute in process data packet to be sent Last data packet recording obtained is end data packet, and end of identification is added for end data packet.Wherein, end of identification can basis Specifically need and set, 0 is such as could be arranged to, it can also be provided that other marks that can recognize that end data packet.Can be with Understand, the size of end data packet is less than or equal to fixed size.When during packet to be sent is split, if The size of packet to be sent is less than or equal to fixed size, then does not perform fractured operation to packet to be sent, treated for this Send packet and add an end of identification.

Specifically, it is that the process that packet addition identifies is：Mark, package are added when carrying out package operation to packet It is exactly to add packet header to one piece of data, packet is divided into packet header and inclusion two parts content.Packet header is fixed-size structure Body, in head-coating structure body, there is individual structure member variable to include the length of subdata bag and customized, use after splitting The mark of subdata bag after mark is split.

Step S30, subdata bag is sent to the second application processor 20, preset so that the second application processor 20 passes through Subdata bag is sent to mobile terminal 100 by interface.

Subdata bag is sent to the detailed process of the second data forwarding client 021 by the second data transmitting server 216 For：Subdata bag is cached to second and sent in extra buffer by the second data transmitting server 216.Now, the second data turn Hair client 021 can get the subdata bag in the second transmission extra buffer by two methods.①：When the second data turn Hair server 216 caches subdata bag to the second transmission extra buffer, and the second data transmitting server 216 sends prompting Message gives the second data forwarding client 021, to prompt the second data forwarding client 021 to cache subdata bag to second Send in extra buffer.When the second data forwarding client 021 receives the prompting message, the second data forwarding client 021 extracts the subdata bag from the second transmission extra buffer.It should be noted that the second transmission extra buffer is used to delay Deposit the packet that the second data transmitting server 216 is sent to the second data forwarding client 021.Wherein, the second data forwarding Server 216 sends communication port and second data transmitting server 216 of the prompting message to the second data forwarding client 021 It is different to the communication port of the second data forwarding client 021 to send subdata bag.As the second data transmitting server 216 is logical GPIO (General Purpose Input Output, general I/O port) port is crossed to will be prompted to message and be sent to second Data forwarding client 021.

In embodiments of the present invention, have defined in the second data transmitting server 216 and the second data forwarding client 021 For QMI (Qualcomm Message Interface) agreement of data transfer, in QMI agreements, mark is defined (flag) field and data (data) field, wherein, data fields are used for data cached bag.In data fields, there is provided number According to the predetermined threshold value of bag size.It is understood that the predetermined threshold value of packet can be set according to specific needs in data fields Put, such as may be configured as 8 bytes, or 12 bytes etc..

The present embodiment by when the second data transmitting server 216 of external equipment 200 gets packet to be sent, Packet to be sent is split, obtains subdata bag corresponding to packet to be sent；The end data packet in subdata bag is determined, is End data packet adds end of identification；Subdata bag is sent to the second application being connected with the second data transmitting server 216 Processor 20, so that subdata bag is sent to mobile terminal 100 by the second application processor 20 by preset interface.Realize During external equipment 200 and mobile terminal 100 carry out data transmission, the subdata bag that packet is split into fixed size enters Row transmission, is avoided during external equipment 200 and mobile terminal 100 carry out data transmission, by the packet transmitted It is excessive, cause the situation of packet bust this to occur.

Further, propose that the present invention is applied to the data transmission method second embodiment of external equipment 200.

Difference applied to the data transmission method second embodiment and first embodiment of external equipment 200 is, reference Fig. 6, step S10 include：

Step S11, when the second data transmitting server 216 gets packet to be sent, calculate packet to be sent Size.

Step S12, if the size of packet to be sent is more than predetermined threshold value, packet to be sent is split, is obtained pending Send subdata bag corresponding to packet.

Data transmission method also includes：

Step a, if the size of packet to be sent is less than or equal to predetermined threshold value, packet to be sent is sent to Second application processor 20, so that bag to be sent is sent to mobile terminal 100 by the second application processor 20 by preset interface.

If the size of packet to be sent is less than or equal to predetermined threshold value, the second data transmitting server 216 is not torn open then Divide packet to be sent, add end of identification for packet to be sent, the packet to be sent containing end of identification is sent to Second application processor 20, so that packet to be sent is sent to mobile terminal 100 by the second application processor 20 by USB.

Further, data transmission method also includes：

Step b, add for other subdata bags in addition to end data packet and identified among identical.

The present invention also provides a kind of data transmission method applied to mobile terminal 100.

Reference picture 7, Fig. 7 are that the flow for the data transmission method preferred embodiment that the present invention is applied to mobile terminal 100 is shown It is intended to.

In the present embodiment, there is provided the embodiment of data transmission method is, it is necessary to illustrate, although showing in flow charts Go out logical order, but in some cases, can be with the step shown or described by being performed different from order herein.

Data transmission method is applied to pass through in the mobile terminal 100 that USB is connected with external equipment 200, mobile terminal 100 Including the first application processor 10, and the first modulation being connected with embedded user identification card 13 and entity user identification card 14 Demodulator 11, the first modem 11 include the first data transmitting server 116, and the first application processor 10 includes the first number According to read-write forwarding module 012 and the first data forwarding client 011 being connected with the first data transmitting server 116.It is external to set Standby 200 include the second application processor 20 and second modem 21, and second modem 21 includes the second data forwarding Server 216, the second application processor 20 include the second reading and writing data forwarding module 022 and with the second data transmitting server Second data forwarding client 021 of 216 connections.Data transmission method includes：

Step S110, sent out when the first reading and writing data forwarding module 012 receives the application processor 20 of external equipment 200 second During the subdata bag sent, the classification logotype in subdata bag is obtained.

Step S120, if determining that subdata bag is pending packet according to classification logotype, detect whether to receive Subdata bag containing end of identification.

Step S130, if receiving the subdata bag containing end of identification, the received subdata bag of combination, to obtain Packet to be sent corresponding with subdata bag.

When the first reading and writing data forwarding module 012 receives the subnumber of the application processor 20 of external equipment 200 second transmission During according to bag, the classification logotype in subdata bag is obtained, and the type of subdata bag is judged according to classification logotype.If according to classification mark Know and determine that subdata bag is pending packet, the first reading and writing data forwarding module 012 then detects whether to receive containing knot The subdata bag of beam identification.If receiving the subdata bag containing end of identification, the first reading and writing data forwarding module 012 then combines The subdata bag received, to obtain complete packet to be sent corresponding with subdata bag.It should be noted that first Reading and writing data forwarding module 012 is during received subdata bag is combined, according to the order of the subdata bag received Combine subdata bag from front to back, obtain complete packet to be sent, with realize external equipment 200 and mobile terminal 100 it Between data transfer.

Further, data transmission method also includes：

Step c, if determining that subdata bag is packet waiting for transmission according to classification logotype, subdata bag is sent to One data forwarding client 011, so that subdata bag is sent to the first data forwarding service by the first data forwarding client 011 Device 116, by the first data transmitting server 116 when receiving the subdata bag containing end of identification, the received son of combination Packet, to obtain packet to be sent corresponding with subdata bag.

Further, the present invention also provides a kind of external equipment 200, and external equipment 200 includes the second application processor 20 With second modem 21, second modem 21 includes the second data transmitting server 216, the second application processor 20 The second data forwarding client being connected including the second reading and writing data forwarding module 022 and with the second data transmitting server 216 021。

When the second data transmitting server 216 gets packet to be sent, packet to be sent is split, is obtained pending Send subdata bag corresponding to packet；

The end data packet in subdata bag is determined, end of identification is added for end data packet；

Subdata bag is sent to the second application processor 20, for the second application processor 20 by preset interface by son Packet is sent to mobile terminal 100.

Further, when the second data transmitting server 216 gets packet to be sent, data to be sent are split The step of wrapping, obtaining subdata bag corresponding to packet to be sent includes：

When the second data transmitting server 216 gets packet to be sent, the size of packet to be sent is calculated；

Further, when the second data transmitting server 216 gets packet to be sent, packet to be sent is calculated Size the step of after, in addition to：

If the size of packet to be sent is less than or equal to predetermined threshold value, packet to be sent is sent into second should With processor 20, so that subdata bag is sent to mobile terminal 100 by the second application processor 20 by preset interface.

Further, by subdata bag be sent to before the step of the second application processor 20, in addition to：

Add for other subdata bags in addition to end data packet and identified among identical.

The embodiment of external equipment 200 of the present invention and the above-mentioned data transmission method applied to external equipment 200 are each Embodiment is essentially identical, will not be repeated here.

Further, the present invention also provides a kind of mobile terminal 100, and mobile terminal 100 includes the first application processor 10, And the first modem 11 being connected with embedded user identification card 13 and entity user identification card 14, the first modulation /demodulation Device 11 includes the first data transmitting server 116, the first application processor 10 include the first reading and writing data forwarding module 012 and with First data forwarding client 011 of the first data transmitting server 116 connection.

When the first reading and writing data forwarding module 012 receives the subnumber of the application processor 20 of external equipment 200 second transmission During according to bag, the classification logotype in subdata bag is obtained；

If determining that subdata bag is pending packet according to classification logotype, detect whether to receive and marked containing end The subdata bag of knowledge；

If receiving the subdata bag containing end of identification, the received subdata bag of combination, to obtain and subdata Packet to be sent corresponding to bag.

Further, sent out when the first reading and writing data forwarding module 012 receives the application processor 20 of external equipment 200 second During the subdata bag sent, obtain subdata bag in classification logotype the step of after, in addition to：

If determining that subdata bag is packet waiting for transmission according to classification logotype, subdata bag is sent to the first data Client 011 is forwarded, so that subdata bag is sent to the first data transmitting server 116 by the first data forwarding client 011, By the first data transmitting server 116 when receiving the subdata bag containing end of identification, the received subdata bag of combination, To obtain packet to be sent corresponding with subdata bag.

The embodiment of mobile terminal 100 of the present invention and the above-mentioned data transmission method applied to mobile terminal 100 are each Embodiment is essentially identical, will not be repeated here.

It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row His property includes, so that process, method, article or system including a series of elements not only include those key elements, and And also include the other key elements being not expressly set out, or also include for this process, method, article or system institute inherently Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this Other identical element also be present in the process of key element, method, article or system.

The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.

Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases The former is more preferably embodiment.Based on such understanding, technical scheme is substantially done to prior art in other words Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium In (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal equipment (can be mobile phone, computer, clothes Be engaged in device, air conditioner, or network equipment etc.) method that performs each embodiment of the present invention.

The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills Art field, is included within the scope of the present invention.

Claims

1. a kind of data transmission system, it is characterised in that the data transmission system includes mobile terminal and external equipment, described Mobile terminal includes the first application processor, and first be connected with embedded user identification card and entity user identification card is adjusted Modulator-demodulator, first modem include the first data transmitting server, and first application processor includes first Reading and writing data forwarding module and the first data forwarding client being connected with first data transmitting server；It is described external to set Standby to include the second application processor and second modem, the second modem includes the second data forwarding service Device, second application processor include the second reading and writing data forwarding module and are connected with second data transmitting server Second data forwarding client；

Second data transmitting server, for when getting packet to be sent, splitting the packet to be sent, obtaining To subdata bag corresponding to the packet to be sent；The end data packet in the subdata bag is determined, is the end number End of identification is added according to bag；The subdata bag is sent to second application processor；

Second application processor, turn for the subdata bag to be sent into first reading and writing data by preset interface Send out module；

The first reading and writing data forwarding module, for when receiving the subdata bag that second application processor is sent, Obtain the classification logotype in the subdata bag；If determine that the subdata bag is pending data according to the classification logotype Bag, then detect whether to receive the subdata bag containing end of identification；If receive the subnumber containing end of identification According to bag, then received subdata bag is combined, to obtain packet to be sent corresponding with the subdata bag.

2. data transmission system as claimed in claim 1, it is characterised in that the first reading and writing data forwarding module is additionally operable to If determining that the subdata bag is packet waiting for transmission according to the classification logotype, the subdata bag is sent to first Data forwarding client；

The first data forwarding client, for the subdata bag to be sent into first data transmitting server；

First data transmitting server, for when receiving the subdata bag containing the end of identification, combination to be connect The subdata bag of receipts, to obtain packet to be sent corresponding with the subdata bag.

3. data transmission system as claimed in claim 1 or 2, it is characterised in that second data transmitting server is also used In when getting the packet to be sent, the size of the packet to be sent is calculated；

If the size of the packet to be sent is more than predetermined threshold value, the packet to be sent is split, is obtained described pending Send subdata bag corresponding to packet.

4. a kind of data transmission method, it is characterised in that the data transmission method is applied to external equipment, the external equipment Including the second application processor and second modem, the second modem includes and second application processor Second data transmitting server of connection, the data transmission method include：

When second data transmitting server gets packet to be sent, the packet to be sent is split, obtains institute State subdata bag corresponding to packet to be sent；

The subdata bag is sent to second application processor, so that second application processor passes through preset interface The subdata bag is sent to mobile terminal.

5. data transmission method as claimed in claim 4, it is characterised in that described when second data transmitting server obtains When getting packet to be sent, the packet to be sent is split, obtains subdata bag corresponding to the packet to be sent Step includes：

When second data transmitting server gets the packet to be sent, the big of the packet to be sent is calculated It is small；

6. the data transmission method as described in claim 4 or 5, it is characterised in that it is described by the subdata bag be sent to Before the step of second application processor, in addition to：

7. a kind of data transmission method, it is characterised in that the data transmission method is applied to mobile terminal, the mobile terminal Including the first application processor, and the first modulation /demodulation being connected with embedded user identification card and entity user identification card Device, first modem include the first data transmitting server, and first application processor is read including the first data Write forwarding module and the first data forwarding client being connected with first data transmitting server, the data transmission method Including：

When the first reading and writing data forwarding module receives the subdata bag of the application processor of external equipment second transmission, obtain Take the classification logotype in the subdata bag；

If determining that the subdata bag is pending packet according to the classification logotype, detect whether to receive containing knot The subdata bag of beam identification；

If receiving the subdata bag containing end of identification, the received subdata bag of combination, to obtain and the son Packet to be sent corresponding to packet.

8. data transmission method as claimed in claim 7, it is characterised in that described to work as the first reading and writing data forwarding module When receiving the subdata bag of the application processor of external equipment second transmission, the step of the classification logotype in the subdata bag is obtained After rapid, in addition to：

If determining that the subdata bag is packet waiting for transmission according to the classification logotype, the subdata bag is sent to The first data forwarding client, so that the subdata bag is sent to described first by the first data forwarding client Data transmitting server, by first data transmitting server when receiving the subdata bag containing the end of identification, The received subdata bag of combination, to obtain packet to be sent corresponding with the subdata bag.

A kind of 9. external equipment, it is characterised in that the external equipment includes the second application processor and second modem, The second modem includes the second data transmitting server, and second application processor turns including the second reading and writing data Hair module and the second data forwarding client being connected with second data transmitting server；The external equipment is applied to such as Data transmission method described in any one of claim 4 to 6.

A kind of 10. mobile terminal, it is characterised in that the mobile terminal includes the first application processor, and with embedded use The first modem that family identification card connects with entity user identification card, first modem turn including the first data Send out server, first application processor include the first reading and writing data forwarding module and with first data transmitting server First data forwarding client of connection；The mobile terminal is applied to the data transfer as described in any one of claim 7 and 8 Method.