CN102413531A - Network switching device and method of multimode terminal - Google Patents
Network switching device and method of multimode terminal Download PDFInfo
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- CN102413531A CN102413531A CN2011103892261A CN201110389226A CN102413531A CN 102413531 A CN102413531 A CN 102413531A CN 2011103892261 A CN2011103892261 A CN 2011103892261A CN 201110389226 A CN201110389226 A CN 201110389226A CN 102413531 A CN102413531 A CN 102413531A
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Abstract
The invention discloses a network switching device of a multimode terminal. The device comprises an upper application module, a wireless equipment module, a wireless interface module, a signal measurement module, a switch decision module and a message routing control module, wherein the wireless equipment module comprises a wireless honeycomb equipment module and a WIFI (wireless fidelity) equipment module; the signal measurement module is used for measuring the signal indexes of a wireless local area network and a wireless honeycomb network, and sending the index measurement result to the switch decision module; the switch decision module is used for performing switch decision calculation according to the index measurement result, judging whether to switch between the wireless local area network and the wireless honeycomb network, and sending the switch decision result to the message routing control module; and the message routing control module is used for selecting a data channel according to the switch decision result, and controlling to send out a data message through the wireless honeycomb equipment module or the WIFI equipment module.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of network switching device shifter and method of multimode terminal.
Background technology
Along with the evolution of mobile cellular network technology, mobile operator is accelerating to advance to 3G so that the deployment of LTE wireless cellular network.But because be subject to the environmental protection pressure in residential block and commercial building, in the more cellular radio base station more and more difficult of densely populated urban place addressing construction.And WLAN (Wireless Local Area Networks, WLAN) focus is little owing to volume, and radiation and power consumption are lower, then seldom face the location problem of similar cellular radio base station.
Present domestic operator more and more payes attention to the operation and the fusion of full-service.Be that master's operator is constantly increasing the investment that fixed network is built to move originally, original was that main operator is in the investment that constantly increases mobile network's construction with fixed network services.Wireless lan network is as the extension of fixed broadband network, and its construction cost is low, dispose more flexible,
The terminal that disposes a plurality of wireless modules is called as multimode terminal; Research and realization support how the bimodulus of WLAN and wireless cellular technology or multimode terminal carry out network selecting and professional the switching under two kinds of network insertion patterns; Improve the flow distribution of network focus for operator; Make full use of wireless lan network and shunt the wireless cellular network flow, have very urgent realistic meaning.For manufacturer terminal, this also is a fine attraction that attracts the user simultaneously.
Switching between existing wireless lan network and the wireless cellular network all is based on MIP or the PMIP technology realizes, has provided the changing method between wireless lan network and the 3GPP wireless cellular network like 3GPP 23.402 agreements.Realize that through PMIP (proxy-mobile IP) technology the IP address of terminal in moving process is constant by the ePDG network element of disposing in the network, PGW network element, make the terminal when the rete mirabile internetwork roaming, keep business continuance; Perhaps directly realize MIP by the terminal, the IP address when realizing the rete mirabile roaming is constant.
Above-mentioned handoff technique requires the MIP (moving IP) or the PMIP of realization; Concerning the multimode terminal and the network equipment, realize more complicated, and need core network to dispose the relevant network equipment of MIP, like HA (Home agent; Home agent) etc., realize that cost is higher.
Summary of the invention
Technical problem to be solved by this invention is that a kind of network switching device shifter and method of multimode terminal is provided.Switch between existing WLAN and the wireless cellular network and all be based on MIP or PMIP realization; Concerning the multimode terminal and the network equipment, realize more complicated; And need core network to dispose the relevant network equipment of MIP, like home agent etc., realize the cost problem of higher.
In order to address the above problem; The invention provides a kind of network switching device shifter of multimode terminal; Comprise upper application module, wireless device module and radio interface module; Said wireless device module comprises radio honeycomb EM equipment module and WIFI EM equipment module, it is characterized in that: said device further comprises a signal measurement module, a switching judging module and a message routing control module; Said signal measurement module is used for the signal index of wireless lan network and wireless cellular network is measured, and the index measurement result is sent to said switch decision module; Said switch decision module is used for according to said index measurement result; Carry out the switch decision computing; Judge whether to carry out the switching between said wireless lan network and the said wireless cellular network; And the objective network that switches, and handoff decision result sent to said message routing control module; Said message routing control module is used for according to said handoff decision result, selects data channel, controls the data message that said upper application module sends and sends through said radio honeycomb EM equipment module or said WIFI EM equipment module; Said radio interface module provides the interface of the said radio honeycomb EM equipment module of visit.
Further, said radio honeycomb EM equipment module is one or more radio honeycomb equipment.
Further, said radio interface module provides the interface of the said radio honeycomb EM equipment module of visit, adopts radio interface layer or be employed in to add the serial ports/network interface modular converter realization that is used to carry out radio honeycomb equipment and network equipment conversion on the serial port drive module.
Further; This device further comprises message intercepting and capturing and processing module; After the data message that is used for sending for said upper application module carries out the encapsulation process of special package form, send via said wireless device module again, and the data message of intercepting and capturing the special package form of receiving from the wireless device module; After said data message carried out decapsulation; Issue said upper application module, said special package form is relevant with concrete network application, adopts the data format of standard agreement or custom protocol.
Further, this device further comprises an access control module, is used to realize the control protocol and the session protocol that require when inserting based on said WIFI EM equipment module.
Further, this device comprises that further a PPP processing module is to accomplish the PPP session switching of said multimode terminal and network equipment; Said PPP processing module is used to accomplish the mutual of ppp protocol control message, and PPP session link is controlled and managed, and accomplishes the encapsulation and the decapsulation of PPP header, and the framing reconciliation frame of accomplishing in the PPP message is handled; Pairing wireless device module of switching target network and said message routing control module are carried out the socket port binding; The socket port of said message routing control module after the binding literary composition that sends datagram perhaps is responsible for collecting data message from the socket port of correspondence; Said radio honeycomb EM equipment module is controlled session link and data message processing through said radio interface module as modulator-demodulator; Said WIFI EM equipment module controls the session link through the WLAN network port driving and data message is handled.
This device comprises that further a plurality of PPP processing modules are to accomplish the PPP session switching of said multimode terminal and network equipment; Said a plurality of PPP processing module all is used to accomplish the mutual of ppp protocol control message, and PPP session link is controlled and managed, and accomplishes the encapsulation and the decapsulation of PPP header, and the framing reconciliation frame of accomplishing in the PPP message is handled; The one PPP processing module of the pairing Wireless Communication Equipment of switching target network copies the PPP session parameter from the 2nd PPP processing module of initial access network corresponding wireless network equipment, copy in the said PPP processing module.
To achieve these goals, the present invention also provides a kind of network switching device shifter of multimode terminal that adopts to carry out the method that network switches, and comprises the steps:
(a) multimode terminal start signal measurement module is measured wireless cellular network and wireless lan network signal;
(b) multimode terminal reads the configuration information of wireless device in the wireless module, according to the access network priority of configuration and first measurement result of said signal measurement module, selects initial access network;
(c) said multimode terminal selects corresponding wireless device to insert said initial access network according to step (a) and information (b);
(d) said multimode terminal calls the switch decision module, according to second measurement result of said signal measurement module, carries out the switch decision computing, need to judge whether to switch, and the objective network that need switch to;
(e) switch to accomplish, said multimode terminal through the corresponding wireless device completion of said objective network and said objective network or and upper layer application between the transmission of data message.
Further, said initial access network is a wireless cellular network, and said objective network is a wireless lan network, or said initial access network is wireless lan network, and said objective network is a wireless cellular network; Said wireless device is radio honeycomb equipment or WIFI equipment, and said radio honeycomb equipment is one or more radio honeycomb equipment.
Further, the access network priority of said wireless module configuration is wireless cellular network when preferential, and step (b) further is selected from any in following three steps:
(b1) said multimode terminal selects the high wireless cellular network of configuration preference level to insert automatically; When the high wireless cellular network of said priority can not maybe can't insert, said multimode terminal selected wireless cellular network to insert according to the configuration preference level automatically from high to low successively;
(b2) said multimode terminal is according to first measurement result of said signal measurement module; Automatically select the high wireless cellular network of network signal quality grade to insert; When the high wireless cellular network of signals selected credit rating can not maybe can't insert, said multimode terminal selected wireless cellular network to insert according to the network signal quality grade automatically from high to low successively;
(b3) user manually selects a wireless cellular network to insert.
The invention has the advantages that; The present invention proposes multimode terminal and realize network insertion selection and changing method between wireless lan network and wireless cellular network; The seamless handover method that adopts is to realize through simple IP, does not need the terminal to support MIP, realizes fairly simple; Core network there is not the newly-increased or scrap build requirement of equipment; Be suitable for disposing fast and realizing, can realize professional intelligent seamless switching, be particularly useful for the Android system at the stack area of coverage of wireless lan network and wireless cellular network based on existing network.Android be a kind of with Linux be the basis open source code operating system, mainly be used in portable equipment.Based on the intelligent multimode terminal of Android system, support WLAN and radio honeycomb standard simultaneously, comprise mobile phone, panel computer and other industry or commercial Application terminal, use more and more universal.
Description of drawings
Shown in Figure 1 is the network switching device shifter Organization Chart of multimode terminal according to the invention;
Shown in Figure 2 is the method for switching network schematic flow sheet of multimode terminal according to the invention;
Fig. 3 realizes the configuration diagram of the embodiment that the PPP session is switched for the network switching device shifter that adopts multimode terminal according to the invention;
Fig. 4 realizes the configuration diagram of another embodiment that the PPP session is switched for the network switching device shifter that adopts multimode terminal according to the invention.
Embodiment
Below in conjunction with accompanying drawing the network switching device shifter of multimode terminal of the present invention and the embodiment of method are elaborated.
Be the network switching device shifter Organization Chart of multimode terminal according to the invention shown in the accompanying drawing 1, comprise upper application module M11, wireless device module M12, radio interface module M13, signal measurement module M14, switch decision module M15, message routing control module M16, message intercepting and capturing and processing module M17 and access control module M18; The wireless device module comprises radio honeycomb EM equipment module M122 and WIFI EM equipment module M121.
Upper layer application (Application is called for short APP) module M11 is used to send data message and receives through the data message after the decapsulation.
Wireless device module M12 comprises radio honeycomb EM equipment module M122 and WIFI EM equipment module M121.The WIFI EM equipment module is used for wireless lan network is inserted at the terminal; The radio honeycomb EM equipment module is used for wireless cellular network is inserted at the terminal.The radio honeycomb EM equipment module can be one or more radio honeycomb equipment, and a plurality of radio honeycomb equipment of outfit can be different agreement or system types.Radio honeycomb EM equipment module on the terminal is different according to protocol type, can be divided into 2G module, 3G module and LTE module, and it is 3GPP or 3GPP2 standard that these modules can be divided into again on the consensus standard standard.
Radio interface module M13 is used for the data message that APP is sent or the data message of transmitting through message routing control module M16 mail to radio honeycomb EM equipment module M122, sends through radio honeycomb equipment; And the data message that radio honeycomb EM equipment module M122 receives issued APP, or after handling through message routing control module M16, finally issue APP.Radio interface module M13 can adopt radio interface layer (Radio Interface Layer is called for short RIL) or be employed in and add the serial ports/network interface modular converter realization that is used to carry out radio honeycomb equipment and network equipment conversion on the serial port drive module.RIL is the unified interface storehouse of the visit radio honeycomb equipment that provides of Android.
Signal measurement module M14 is used for the signal index of wireless lan network and wireless cellular network is measured, and the index measurement result is sent to switch decision module M15.
Switch decision module M15 is used for carrying out the switch decision computing according to the index measurement result, judges whether to carry out the switching between wireless lan network and the wireless cellular network, and handoff decision result is sent to message routing control module M16.
Message routing control module M16 is used for according to handoff decision result, selects data channel, and the control data message is to send through radio honeycomb EM equipment module M122 or WIFI EM equipment module M121.
After the data message that message is intercepted and captured and processing module M17 is used for sending for APP carries out the encapsulation process of special package form; Send via wireless device module M12 again; And intercept and capture from wireless device module M12 receive the special package form data message; After said data message carried out decapsulation, issue APP.Said special package form is relevant with concrete network application, can adopt the data format of standard agreement or custom protocol.
If network equipment and the mutual data message of terminal wireless cellular device module M122 are specific format, after then said data message process message intercepting and capturing and processing module M17 carry out the specific format encapsulation process, send via radio honeycomb EM equipment module M122 again; The data message of the specific format that the terminal receives also to pass through message intercept and capture carry out the decapsulation processing with processing module M17 after, issue APP.
If the mutual data message of network equipment and WIFI EM equipment module M122 is a specific format, after then said data message process message intercepting and capturing and processing module M17 carry out the specific format encapsulation process, send via WIFI EM equipment module M122 again; The data message of the specific format that the terminal receives also to pass through message intercept and capture carry out the decapsulation processing with processing module M17 after, issue APP.
Access control module M18: when the terminal was selected to insert wireless lan network, access control module M18 realized control protocol and the session protocol that WIFI EM equipment module M122 requires.Data message that is used for APP is sent or the data message of transmitting through message routing control module M16 mail to WIFI EM equipment module M122, send through WIFI equipment; And the data message forwarding that WIFI EM equipment module M122 is received gives APP, or is sent to after message routing control module M16 handles, and finally issues APP.
Be the method for switching network schematic flow sheet of multimode terminal according to the invention shown in the accompanying drawing 2, comprise the steps:
S11: multimode terminal start signal measurement module, wireless cellular network and wireless lan network signal are measured.
Multimode terminal is opened, and then signal measurement module also is in opening, and the Measurement Network signal quality obtains corresponding measurement result in real time.
S12: multimode terminal reads the configuration information of wireless device in the wireless module, according to the access network priority of configuration and first measurement result of said signal measurement module, selects initial access network.
Said initial access network is wireless cellular network or wireless lan network.
To be configured to wireless lan network preferential when wireless module, and then preferential selection of multimode terminal inserted wireless lan network via WIFI equipment; Otherwise preferential selection of multimode terminal inserted wireless cellular network via radio honeycomb equipment.
If disposed a plurality of radio honeycomb equipment on the wireless module, then multimode terminal is that automatic or manual is selected to the system of selection of a plurality of wireless cellular networks.
Automatically the method for selecting is: multimode terminal selects the high wireless cellular network of configuration preference level to insert automatically; Because channel congestion or capacity can not maybe can't insert inadequately the time, multimode terminal selects wireless cellular network to insert according to the configuration preference level automatically from high to low successively when selected wireless cellular network; Perhaps multimode terminal is according to first measurement result of said signal measurement module; Automatically select the high wireless cellular network of network signal quality grade to insert; When selected wireless cellular network can not maybe can't insert, select wireless cellular network to insert from high to low successively according to wireless cellular network signal quality grade.
The method of manually selecting is: the user manually selects certain wireless cellular network, and multimode terminal is inserted via this wireless cellular network.
S13: multimode terminal selects corresponding wireless device to insert said initial access network through step S11 and the determined initial access network of S12.
If initial access network is wireless to be local net network, then multimode terminal is selected to insert wireless lan network via WIFI equipment; Otherwise multimode terminal is selected to insert wireless cellular network via radio honeycomb equipment.
S14: multimode terminal calls the switch decision module, according to second measurement result of signal measurement module, carries out the switch decision computing, need to judge whether to switch, and the objective network that need switch to.
Said objective network is wireless cellular network or wireless lan network.
Because of signal measurement module is in opening always, real-time Measurement Network signal quality.When the network environment of multimode terminal changed, respective change also took place in the measurement result that obtains thereupon.
When the multimode terminal judgement need be when wireless lan network switches to wireless cellular network; Switch decision module indication message routing control module is revised the data message route; The data message that APP is sent or mail to radio honeycomb equipment through radio interface module through the data message that the message routing control module is transmitted is sent by radio honeycomb equipment; The data message that radio honeycomb equipment is received is directly issued APP through radio interface module, or after radio interface module is sent to the processing of message routing control module, issues APP.Said radio interface module can adopt radio interface layer (Radio Interface Layer is called for short RIL) or be employed in and add the serial ports/network interface modular converter realization that is used to carry out radio honeycomb equipment and network equipment conversion on the serial port drive module.RIL is the unified interface storehouse of the visit radio honeycomb equipment that provides of Android.If the mutual data message of the network equipment and multimode terminal radio honeycomb equipment is a specific format, after then said data message process message intercepting and capturing and processing module are carried out the specific format encapsulation process, send via radio honeycomb equipment again; The data message of the specific format that radio honeycomb equipment receives also will intercept and capture through message earlier and processing module is carried out the decapsulation processing.
When the multimode terminal judgement need be when wireless cellular network switches to wireless lan network; Switch decision module indication message routing control module is revised message routing, and data message that APP is sent or the data message of transmitting through the message routing control module send via WIFI equipment; The data message that WIFI equipment is received is directly issued APP, or after the message routing control module is handled, issues APP.If the mutual data message of the network equipment and multimode terminal WIFI equipment is a specific format, after then said data message process message intercepting and capturing and processing module are carried out the specific format encapsulation process, send via WIFI equipment again; The data message of the specific format that WIFI equipment receives also will intercept and capture through message earlier and processing module is carried out the specific format encapsulation process.
S15: switch to accomplish, multimode terminal through the corresponding wireless device completion of objective network and objective network or and upper layer application between the transmission of data message.
Like this, multimode terminal is realized the network insertion selection between wireless lan network and wireless cellular network, and the seamless handover method that adopts is to realize through simple IP; Do not need the terminal to support MIP; Realize fairly simplely, core network is not had the newly-increased or scrap build requirement of equipment, be suitable for disposing fast and realizing based on existing network; Can realize professional intelligent seamless switching at the stack area of coverage of wireless lan network and wireless cellular network, be particularly useful for the Android system.Android be a kind of with Linux be the basis open source code operating system; Mainly be used in portable equipment; Intelligent multimode terminal based on the Android system; Support WLAN and radio honeycomb standard simultaneously, comprise mobile phone, panel computer and other industry or commercial Application terminal, use more and more universal.
When multimode terminal and network equipment need use ppp protocol (Point to Point Protocol; Point is to communication protocol) when setting up session link and deal with data message; Can on the basis of the network switching device shifter of multimode terminal according to the invention, increase the PPP processing module, realize that the PPP session switches.
The function of PPP processing module is accomplish ppp protocol control message mutual, and PPP session link is controlled and managed; Accomplish the encapsulation and the decapsulation of PPP header, and the framing of accomplishing in the PPP message is conciliate the frame processing.
Fig. 3 realizes the configuration diagram of the embodiment that the PPP session is switched for the network switching device shifter that adopts multimode terminal according to the invention.
Present embodiment is to adopt unified PPP processing modules implement PPP session to switch, and comprises upper application module M31, PPP processing module M32, message routing control module M33, wireless cellular network EM equipment module M34 and wireless lan network EM equipment module M35; Wireless cellular network EM equipment module M34 comprises serial ports/network interface modular converter M341, serial port drive module M342 and radio honeycomb EM equipment module M343; Wireless lan network EM equipment module M35 comprises WLAN network port driving module M351 and WIFI EM equipment module M352.
Upper application module M31 is used to send data message and receives through the data message after the decapsulation.
PPP processing module M32 is used to accomplish the mutual of ppp protocol control message, and PPP session link is controlled and managed; Accomplish the encapsulation and the decapsulation of PPP header, and the framing of accomplishing in the PPP message is conciliate the frame processing.
Message routing control module M33 is used to select data channel, to the selected Socket port literary composition that sends datagram, perhaps is responsible for collecting data message from the Socket port of correspondence.
Wireless cellular network EM equipment module M34 and message routing control module M33 carry out Socket (socket makes application program can read and write and receive and dispatch the program of communications protocol (protocol) and data) port binding.Radio honeycomb EM equipment module M343 controls session link and data message processing through radio interface module as modulator-demodulator (Modem).Said radio interface module can be employed in serial port drive module M342 and go up add and to be used to carry out radio honeycomb equipment and to realize with network equipment conversion serial ports/network interface modular converter M341, also can adopt the unified interface storehouse RIL realization of the visit radio honeycomb equipment that Android provides.
Wireless lan network EM equipment module M35 and message routing control module M33 carry out the Socket port binding.WIFI EM equipment module M352 controls the session link through WLAN network port driving module M351 and data message is handled.
Can all can regard radio honeycomb equipment and WiFi equipment as Wireless Communication Equipment like this, can adopt unified strategy to manage.
After using method that multimode terminal network according to the invention switches to confirm initial access network and the objective network that will switch; The terminal network appliance module that the selected target network is corresponding; The data message that send at the terminal selects data message to send via selected terminal network appliance module via message routing control module M33 after accomplishing protocol processes through PPP processing module M32.The data message of receiving for the terminal, the Socket port through correspondence is accomplished and is sent to upper application module M31 after the protocol processes and handle via send to PPP processing module M32 to message routing control module M33.
Use same PPP processing module M32 on the terminal, can pass through radio honeycomb EM equipment module M343 or WIFI equipment M352 respectively, the PPP session control flow process and the PPP information message interaction of completion and network equipment.
Fig. 4 realizes the configuration diagram of another embodiment that the PPP session is switched for the network switching device shifter that adopts multimode terminal according to the invention.
This embodiment is to adopt different PPP processing modules implement PPP sessions to switch, and comprises upper application module M41, message routing control module M42, first network equipment module M43 and second network equipment module M44; First network equipment module M43 comprises a PPP processing module M431 and wireless cellular network EM equipment module M432; Second network equipment module M44 comprises the 2nd PPP processing module M441 and wireless lan network EM equipment module M442;
Upper application module M41 is used to send data message and receives through the data message after the decapsulation.
Message routing control module M42 is used to select data channel, and copy PPP session parameter copies in the corresponding PPP processing module of the selected network equipment from the data channel of the original network equipment.
Present embodiment is particularly useful for the Android system; Wireless cellular network equipment on the Android multimode terminal can use independent hardware processor to handle the data message of wireless cellular network, and promptly a PPP processing module M431 can adopt hardware processor to realize that independently the PPP message is handled.
The PPP processing module that the 2nd PPP processing module M441 Android system kernel capable of using provides, i.e. the PPP processing modules implement PPP message that WIFI equipment utilization Android system kernel provides is handled.
After using method that multimode terminal network according to the invention switches to confirm initial access network and the objective network that will switch; The terminal network appliance module that the selected target network is corresponding is accomplished and the foundation of the PPP session link of network equipment by the corresponding PPP processing module of selected network equipment module.
If terminal initial is to insert wireless cellular network via radio honeycomb equipment; Need be when radio honeycomb equipment switches to WIFI equipment; Message routing control module M42 copies the PPP session parameter from a PPP processing module M431 of radio honeycomb equipment; Copy among the 2nd corresponding PPP processing module M441 of WIFI equipment, make different PPP processing modules keep PPP session consistency.
If terminal initial is to insert wireless lan network via WIFI equipment; Need be when WIFI equipment switches to radio honeycomb equipment; Message routing control module M42 copies the PPP session parameter from the 2nd PPP processing module M441 of WIFI equipment; Copy among the corresponding PPP processing module M431 of radio honeycomb equipment, make different PPP processing modules keep PPP session consistency.
Through the method that above-mentioned PPP session parameter duplicates, kept PPP session consistency based on the heterogeneous networks EM equipment module.No matter the terminal switches to WIFI equipment from radio honeycomb equipment; Still switch to radio honeycomb equipment from WIFI equipment; The IP address that protocol parameter in the mutual PPP message of terminal and network equipment and terminal obtain from the PPP session interaction; Can both remain unchanged, make terminal APP and the service application between network equipment be carried in the PPP session can keep continuity, realize the seamless switching of PPP session.
When terminal or network equipment were closed the PPP session, by current radio honeycomb equipment that is using in terminal or WIFI device processes PPP chain rupture flow process, and optional notice miscellaneous equipment was removed PPP session and PPP parameter.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. the network switching device shifter of a multimode terminal; Comprise upper application module, wireless device module and radio interface module; Said wireless device module comprises radio honeycomb EM equipment module and WIFI EM equipment module, it is characterized in that: said device further comprises a signal measurement module, a switching judging module and a message routing control module; Said signal measurement module is used for the signal index of wireless lan network and wireless cellular network is measured, and the index measurement result is sent to said switch decision module; Said switch decision module is used for according to said index measurement result; Carry out the switch decision computing; Judge whether to carry out the switching between said wireless lan network and the said wireless cellular network; And the objective network that switches, and handoff decision result sent to said message routing control module; Said message routing control module is used for according to said handoff decision result, selects data channel, controls the data message that said upper application module sends and sends through said radio honeycomb EM equipment module or said WIFI EM equipment module; Said radio interface module provides the interface of the said radio honeycomb EM equipment module of visit.
2. according to the network switching device shifter of the said multimode terminal of claim 1, it is characterized in that: said radio honeycomb EM equipment module is one or more radio honeycomb equipment.
3. according to the network switching device shifter of the said multimode terminal of claim 1; It is characterized in that: said radio interface module provides the interface of the said radio honeycomb EM equipment module of visit, adopts radio interface layer or be employed in to add the serial ports/network interface modular converter realization that is used to carry out radio honeycomb equipment and network equipment conversion on the serial port drive module.
4. according to the network switching device shifter of the said multimode terminal of claim 1; It is characterized in that: this device further comprises message intercepting and capturing and processing module; After the data message that is used for sending for said upper application module carries out the encapsulation process of special package form, send via said wireless device module again, and the data message of intercepting and capturing the special package form of receiving from the wireless device module; After said data message carried out decapsulation; Issue said upper application module, said special package form is relevant with concrete network application, adopts the data format of standard agreement or custom protocol.
5. according to the network switching device shifter of the said multimode terminal of claim 1, it is characterized in that: this device further comprises an access control module, is used to realize the control protocol and the session protocol that require when inserting based on said WIFI EM equipment module.
6. according to the network switching device shifter of the said multimode terminal of claim 1, it is characterized in that: this device comprises that further a PPP processing module is to accomplish the PPP session switching of said multimode terminal and network equipment; Said PPP processing module is used to accomplish the mutual of ppp protocol control message, and PPP session link is controlled and managed, and accomplishes the encapsulation and the decapsulation of PPP header, and the framing reconciliation frame of accomplishing in the PPP message is handled; Pairing wireless device module of switching target network and said message routing control module are carried out the socket port binding; The socket port of said message routing control module after the binding literary composition that sends datagram perhaps is responsible for collecting data message from the socket port of correspondence; Said radio honeycomb EM equipment module is controlled session link and data message processing through said radio interface module as modulator-demodulator; Said WIFI EM equipment module controls the session link through the WLAN network port driving and data message is handled.
7. according to the network switching device shifter of the said multimode terminal of claim 1, it is characterized in that: this device comprises that further a plurality of PPP processing modules are to accomplish the PPP session switching of said multimode terminal and network equipment; Said a plurality of PPP processing module all is used to accomplish the mutual of ppp protocol control message, and PPP session link is controlled and managed, and accomplishes the encapsulation and the decapsulation of PPP header, and the framing reconciliation frame of accomplishing in the PPP message is handled; The one PPP processing module of the pairing Wireless Communication Equipment of switching target network copies the PPP session parameter from the 2nd PPP processing module of initial access network corresponding wireless network equipment, copy in the said PPP processing module.
8. one kind is adopted the described network switching device shifter of claim 1 to carry out the method that network switches, and it is characterized in that, comprises the steps:
(a) multimode terminal start signal measurement module is measured wireless cellular network and wireless lan network signal;
(b) multimode terminal reads the configuration information of wireless device in the wireless module, according to the access network priority of configuration and first measurement result of said signal measurement module, selects initial access network;
(c) said multimode terminal selects corresponding wireless device to insert said initial access network according to step (a) and information (b);
(d) said multimode terminal calls the switch decision module, according to second measurement result of said signal measurement module, carries out the switch decision computing, need to judge whether to switch, and the objective network that need switch to;
(e) switch to accomplish, said multimode terminal through the corresponding wireless device completion of said objective network and said objective network or and upper layer application between the transmission of data message.
9. changing method according to claim 8; It is characterized in that: said initial access network is a wireless cellular network; Said objective network is a wireless lan network, or said initial access network is wireless lan network, and said objective network is a wireless cellular network; Said wireless device is radio honeycomb equipment or WIFI equipment, and said radio honeycomb equipment is one or more radio honeycomb equipment.
10. changing method according to claim 8 is characterized in that, the access network priority of said wireless module configuration is wireless cellular network when preferential, and step (b) further is selected from any in following three steps:
(b1) said multimode terminal selects the high wireless cellular network of configuration preference level to insert automatically; When the high wireless cellular network of said priority can not maybe can't insert, said multimode terminal selected wireless cellular network to insert according to the configuration preference level automatically from high to low successively;
(b2) said multimode terminal is according to first measurement result of said signal measurement module; Automatically select the high wireless cellular network of network signal quality grade to insert; When the high wireless cellular network of signals selected credit rating can not maybe can't insert, said multimode terminal selected wireless cellular network to insert according to the network signal quality grade automatically from high to low successively;
(b3) user manually selects a wireless cellular network to insert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| WO2014166246A1 (en) * | 2013-04-12 | 2014-10-16 | 华为技术有限公司 | Method, device and system for balancing load among wireless networks |
| CN105391470A (en) * | 2015-11-28 | 2016-03-09 | 广东欧珀移动通信有限公司 | Network switching method, apparatus and terminal |
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| CN102752825A (en) * | 2012-07-19 | 2012-10-24 | 德明通讯(上海)有限公司 | Seamless switch fusion method for mobile terminal in long term evolution (LTE) network and wireless fidelity (Wi-Fi) hot spot network |
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| CN105391470A (en) * | 2015-11-28 | 2016-03-09 | 广东欧珀移动通信有限公司 | Network switching method, apparatus and terminal |
| CN105725975A (en) * | 2016-02-04 | 2016-07-06 | 中国人民解放军总医院 | Selection method of remote real-time psychological and physiological information collection data transmission channel |
| CN105847243A (en) * | 2016-03-18 | 2016-08-10 | 北京小米移动软件有限公司 | Method and device for accessing smart camera |
| CN109073758A (en) * | 2016-12-13 | 2018-12-21 | 苏州宝时得电动工具有限公司 | From mobile device, automatic working system, network RTK positioning system, calculate equipment and operation method |
| CN110249661B (en) * | 2017-02-15 | 2021-09-17 | Oppo广东移动通信有限公司 | Network connection method and device |
| CN110249661A (en) * | 2017-02-15 | 2019-09-17 | Oppo广东移动通信有限公司 | Method for connecting network and device |
| CN108174378A (en) * | 2018-03-21 | 2018-06-15 | 广东欧珀移动通信有限公司 | Number identification method, device, terminal and storage medium |
| CN113316199A (en) * | 2020-02-26 | 2021-08-27 | 华为技术有限公司 | Connection management method and related equipment |
| CN113316199B (en) * | 2020-02-26 | 2023-06-20 | 华为技术有限公司 | Connection management method and related equipment |
| CN114363119A (en) * | 2021-12-31 | 2022-04-15 | 汕头市超声仪器研究所股份有限公司 | Method for simultaneously using C + + socket communication and cellular network under Android system |
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