CN103188753A - Method and device for data transmission based on different links between heterogeneous networks - Google Patents
Method and device for data transmission based on different links between heterogeneous networks Download PDFInfo
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- CN103188753A CN103188753A CN2011104449196A CN201110444919A CN103188753A CN 103188753 A CN103188753 A CN 103188753A CN 2011104449196 A CN2011104449196 A CN 2011104449196A CN 201110444919 A CN201110444919 A CN 201110444919A CN 103188753 A CN103188753 A CN 103188753A
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Abstract
The invention discloses a method, a device and a system for data transmission based on different links between heterogeneous networks. The method comprises the steps that a receiving terminal sends a message to a network side based on a virtual network card address; one of communication network links corresponding to at least two network cards inserted at the terminal respectively is selected, wherein the communication network links corresponding to at least two inserted network cards respectively are different links between the heterogeneous networks; the virtual network card address serving as a source address in the message is converted to a network card address of the network card corresponding to the selected communication network link; and the message after source address conversion is sent to the network side through the selected communication network link. With the adoption of the technical scheme, the switching efficiency of different communication network links between the heterogeneous networks can be improved better.
Description
Technical field
The present invention relates to network communications technology field, especially relate to a kind of method, Apparatus and system that carries out transfer of data based on different links between the heterogeneous network.
Background technology
Fast development along with mobile communication technology and computer networking technology, the wireless communication technology of a lot of extensive uses is very ripe, as time division CDMA (TD-SCDMA, Time Division-Synchronous Code Division Multiple Access), Wideband Code Division Multiple Access (WCDMA) (WCDMA, Wide-band Code Division Multiple Access), WLAN (wireless local area network) (WLAN, Wirless Local Area Network), micro-wave access global leads to (WiMAX, Worldwide Interoperability for Microwave Access) communication technology such as, multiple communication technology coexistence makes the user can freely select the wireless broadband network of one or more different access waies to communicate service.In order to obtain higher network quality, and use various any wireless network services more flexibly, be convenient to the heterogeneous network handoff technique that the user is freely switched thereby produced between multiple network.
The heterogeneous network handoff technique mainly is divided into the link layer switching and network layer is switched two kinds of switching types.Wherein link layer switches main solution and never changes under the situation that inserts route, guarantees the connectivity of link when terminal is switched between each base station.And network layer is switched, mainly be to realize by the mode that Microsoft Loopback Adapter is set in end side, be specially: for two different communication network A and network B sharing same core net, terminal is when using communication network transmission data, corresponding two different communication network A and network B, there are network link A and network link B, the Microsoft Loopback Adapter that is arranged on end side can be two different different virtual ip address of communication network link configuration, and the user can use the different communication network link corresponding virtual IP address of configuration to carry out transfer of data.Suppose that the current network link A that uses of user is carrying out transfer of data in network A, when needs communicate the network switching, at first need to obtain Microsoft Loopback Adapter and be the virtual ip address of network link B configuration, then according to the IP address information that obtains, select new network link and access point etc., so that the current data of transmitting in network link A are switched among the network link B, behind the handover success, in network link B, continue to destination address transmission data.
In the prior art, realize that based on the Microsoft Loopback Adapter that is arranged on end side terminal carries out network layer and switch between heterogeneous network, in data transmission procedure, need the IP address information according to the new network link correspondence of obtaining, rebulid the communication network link, therefore cause switching efficiency lower.
Summary of the invention
The embodiment of the invention provides a kind of and carries out method, the Apparatus and system of transfer of data based on the different links between the heterogeneous network, to improve the efficient that the different communication network link switches between the heterogeneous network preferably.
The technical scheme that the embodiment of the invention proposes is as follows:
A kind ofly carry out the method for transfer of data based on different links between the heterogeneous network, comprising: the message that receiving terminal sends to network side based on the Microsoft Loopback Adapter address; Respectively in the corresponding communication network link, selects a communication network link at least two network interface cards that terminal is inserted, wherein at least two network interface cards of Cha Ruing respectively the communication network link of correspondence be different links between the heterogeneous network; Change in the described message as the Microsoft Loopback Adapter address of the source address NIC address for the network interface card of the communication network link correspondence selected; And with the message behind the conversion source address, send to network side by the communication network link of selecting.
A kind of method of carrying out transfer of data based on different links between the heterogeneous network, comprise: in advance respectively at each terminal, at least two network interface cards that this terminal is inserted corresponding communication network link are respectively safeguarded as link queue, the terminal iidentification of this terminal is configured to the sign of this link queue, and is this unique formation address of link queue distribution; Follow-up when receiving the message that terminal sends, find the link corresponding formation according to the sign of the terminal that sends message; And the source address of the message that receives of conversion is the formation address of the link queue that finds; Message with behind the conversion source address is transmitted to data gateway.
A kind ofly carry out the method for transfer of data based on different links between the heterogeneous network, comprising: receive the message that data gateway is sent; Destination address in the message that receives as the information of searching the link queue sign, in the link queue of safeguarding respectively for different terminals in advance, is found the link corresponding formation; In the link queue that finds, select a communication network link; The destination address of the message that conversion receives is the NIC address of the network interface card of the link correspondence of selection; Message with behind the conversion destination address sends to end side by the communication network link of selecting.
A kind ofly carry out the device of transfer of data based on different links between the heterogeneous network, comprising: receiving element is used for the message that receiving terminal sends to network side based on the Microsoft Loopback Adapter address; The link management unit is used at least two network interface cards inserting in terminal corresponding communication network links respectively, selects a communication network link, wherein at least two network interface cards of Cha Ruing respectively the communication network link of correspondence be different links between the heterogeneous network; Address conversioning unit, the NIC address of the network interface card of the communication network link correspondence of selecting for the link management unit as the Microsoft Loopback Adapter address of source address in the message that receives of conversion receiving element; Transmitting element is used for the message behind the address conversioning unit conversion source address, and the communication network link of selecting by the link management unit sends to network side.
A kind of device that carries out transfer of data based on different links between the heterogeneous network, comprise: the link queue maintenance unit, be used in advance respectively at each terminal, at least two network interface cards that this terminal is inserted corresponding communication network link are respectively safeguarded as link queue, the terminal iidentification of this terminal is configured to the sign of this link queue, and is this unique formation address of link queue distribution; Link queue is searched the unit, be used for follow-up when receiving the message that terminal sends, the respective links formation of finding the link queue maintenance unit to safeguard according to the sign of the terminal that sends message; Address conversioning unit is the formation address that link queue is searched the link queue that finds the unit for the source address of changing the message that receives; Transmitting element is used for the message behind the address conversioning unit conversion source address, is transmitted to data gateway.
A kind ofly carry out the device of transfer of data based on different links between the heterogeneous network, comprising: receiving element is used for receiving the message that data gateway is sent; Link queue is searched the unit, is used for the destination address of message that receiving element is received as the sign of link queue, in the link queue of safeguarding respectively for different terminals in advance, finds the link corresponding formation; The link selection unit is used for searching communication network link of link queue selection that the unit finds in link queue; The NIC address of the network interface card of the link correspondence that address conversioning unit, the destination address that is used for the message that the conversion receiving element receives are selected for the link selection unit; Transmitting element is used for address conversioning unit is changed message behind the destination address, and the communication network link of selecting by the link selection unit sends to end side.
Based on technique scheme, in up link, the message that receiving terminal sends to network side based on the Microsoft Loopback Adapter address, in the corresponding isomery communication network link of at least two network interface cards difference that terminal is inserted, select a communication network link, and the source address in this message is converted to the NIC address of the communication network link correspondence of selection, message after the conversion is sent to network side, network is after receiving message, find the link corresponding formation by the terminal iidentification that carries in the message, and source address is converted to the link queue address of finding, the message behind the conversion source address is transmitted to data gateway.In down link, receive the message that data gateway is sent, find corresponding terminal links formation according to the destination address that carries in the message, in the terminal links formation of finding, select a communication network link, then the destination address of the message that receives is converted to the NIC address of the communication network link correspondence of selection, with the message after the conversion, be sent to end side by the communication network link of selecting, be transmitted to terminal via Microsoft Loopback Adapter again, thereby make the message that transmits by heterogeneous network, can utilize the heterogeneous network resource of coexistence, be implemented in and carry out seamless switching between the heterogeneous network communication link, improve the efficient of between heterogeneous network different communication network link, switching preferably, and avoided the problem of Network Packet Loss and data delay in the handoff procedure.
Description of drawings
Fig. 1 is in the embodiment of the invention one, proposition carry out the system architecture diagram of transfer of data based on different links between the heterogeneous network;
Fig. 2 is in the embodiment of the invention two, proposition carry out the method flow diagram of transfer of data based on different links between the heterogeneous network;
Fig. 3 is in the embodiment of the invention two, the method flow diagram of setting up the terminal links formation of proposition;
Fig. 4 is in the embodiment of the invention three, proposition carry out the structure drawing of device of transfer of data based on different links between the heterogeneous network;
Fig. 5 is in the embodiment of the invention three, proposition carry out the structure drawing of device of transfer of data based on different links between the heterogeneous network;
Fig. 6 is in the embodiment of the invention three, proposition carry out the structure drawing of device of transfer of data based on different links between the heterogeneous network;
Fig. 7 is in the embodiment of the invention three, proposition carry out the structure drawing of device of transfer of data based on different links between the heterogeneous network.
Embodiment
Realize that based on the Microsoft Loopback Adapter based on being arranged on end side that exists in the prior art terminal carries out network layer and switch between heterogeneous network, in data transmission procedure, need the IP address information according to the new network link correspondence of obtaining, rebulid the communication network link, therefore cause the lower problem of switching efficiency, the embodiment of the invention proposes a kind of technical scheme of carrying out transfer of data based on different links between the heterogeneous network here, at network side, for the network link between the corresponding heterogeneous network of the network interface card difference of all insertions on each terminal is safeguarded a terminal links formation, and be that this link queue disposes a formation address, when the needs message transmission, by in the terminal links formation of this maintenance, selecting corresponding communication network link, and the source address that terminal is sent to the message of network side is converted to the NIC address of the communication network link correspondence of selecting, message behind the conversion source address is sent to network side by the communication network link of selecting, network side is according to unique terminal links formation of safeguarding for this terminal, the source address that receives message is converted to terminal links formation address, and the message behind the conversion source address is forwarded to data gateway.Thereby make the message that transmits by heterogeneous network, can utilize the heterogeneous network resource of coexistence, be implemented in and carry out seamless switching between the heterogeneous network communication link, improve the switching efficiency between the heterogeneous network communication link preferably, and avoided the problem of Network Packet Loss and data delay in the link handoff procedure.
At length set forth to the main realization principle of embodiment of the invention technical scheme, embodiment and to the beneficial effect that should be able to reach below in conjunction with each accompanying drawing.
Embodiment one
As shown in Figure 1, in the embodiment of the invention one, what propose carries out the system architecture diagram of transfer of data based on different links between the heterogeneous network, comprise terminal, Microsoft Loopback Adapter, link management equipment, the first communication network network interface card and corresponding Access Network, second communication network network interface card and corresponding Access Network, terminal links queue management equipment, data gateway thereof thereof, wherein:
Terminal, it is the terminal that to insert at least two network interface cards and all can be connected to the corresponding network side by any network interface card, wherein at least two network interface cards can be the communication network interface cards of corresponding different communication standard respectively, for example can be the desktop computer that is provided with network interface card, notebook computer, mobile phone etc.
Microsoft Loopback Adapter is arranged on a kind of virtual network card equipment on the terminal equipment, and its form can be one section program, also can be an integrated chip.This Microsoft Loopback Adapter disposes device identification and the IP address that is different from all physical network cards simultaneously.In up link, Microsoft Loopback Adapter is used for transmitting all messages that terminal need be sent to network side.In down link, the message that Microsoft Loopback Adapter is used for transmitting from the network side reception is given terminal.
Link management equipment, the link management equipment that the embodiment of the invention one proposes here, be provided with the terminal identification information corresponding with terminal, in up link, be used for the message that receiving terminal sends to network side based on the Microsoft Loopback Adapter address, in the corresponding communication network link of at least two network interface cards difference that terminal is inserted, the loading condition current according to different links, select a communication network link according to the load balancing principle, wherein at least two network interface cards of Cha Ruing respectively the communication network link of correspondence be different links between the heterogeneous network.With receive based on the Microsoft Loopback Adapter address as the NIC address of the Microsoft Loopback Adapter address transition in the message of source address transmission for the network interface card of the communication network link correspondence selected, with the message behind the conversion source address, send to network side by the communication network link of selecting then.In down link, receive the message that network interface card that network side inserts by terminal is transferred to terminal, the destination address in the message that receives is converted to the Microsoft Loopback Adapter address, will change the message behind the destination address then, be transmitted to terminal based on the Microsoft Loopback Adapter address.
The first communication network network interface card is a kind of physical network card, can be plugged on the terminal, thereby make terminal can insert the Access Network corresponding with this first communication network network interface card.Wherein, the first communication network network interface card can but to be not limited to be the TD-SCDMA network interface card, its corresponding Access Network is the TD-SCDMA Access Network, this access network is a kind of network that constitutes the isomery communication network.
Second communication network network interface card also is a kind of physical network card, can be inserted on the terminal, thereby make terminal can insert the Access Network corresponding with this second communication network network interface card.Wherein, here second communication network network interface card can but to be not limited to be the WLAN network interface card, its corresponding Access Network is WLAN (wireless local area network), this Access Network is the another kind of network that constitutes the isomery communication network.
Need to prove, the embodiment of the invention is that example is come the technical scheme that the present invention proposes made and elaborated with two different communication networks only here, in specific implementation process, can also increase more physical network card, namely on a terminal equipment, can insert a plurality of different physical network cards simultaneously, and can guarantee that the communication network link of arbitrary network interface card correspondence that terminal can be inserted by self all can carry out the transmission of message.
Terminal links queue management equipment is used for identification and manages the corresponding communication network link of different network interface cards difference that is inserted on the same terminal.In the up link of transfer of data, terminal links queue management equipment is responsible for transmitting the message that terminal is issued network side, and in down link, being responsible for transmitting terminal need be from the message of network side reception.
Particularly, terminal links queue management equipment is in advance respectively at each terminal, at least two network interface cards that this terminal is inserted corresponding communication network link are respectively safeguarded as link queue, the terminal iidentification of this terminal is configured to the sign of this link queue, and is this unique formation address of link queue distribution.In up link, when receiving the message that terminal sends, find the link corresponding formation according to the sign of the terminal that sends message, and the source address of the message that receives of conversion is the formation address of the link queue that finds; Message with behind the conversion source address is transmitted to data gateway.
Wherein, terminal links queue management equipment is the first link management message sent of the communication network link of at least two network interface card correspondences inserting by self of receiving terminal respectively, the information of the network interface card that wherein carries the terminal iidentification of this terminal in the first link management message and pass through respectively for example can be mac address information with this network interface card corresponding identification information or this network interface card etc.As the sign of distributing to the link queue of safeguarding for this terminal, and the different link maintenances of the network interface card information correspondence of carrying respectively in each first link management message that will receive are in the link queue for this terminal maintenance with the terminal iidentification that carries in the first link management message.Wherein, after setting up corresponding link queue for each terminal, if at a time, receiving the communication network link of terminal in the network interface card correspondence of self inserting when changing, during the second link management message sent, the network interface card information link corresponding of carrying in the second link management message that receives is maintained in the terminal iidentification link corresponding formation that this second link management message carries, to reach being the purpose that link queue that terminal is safeguarded is upgraded.
Particularly, in down link, terminal links queue management equipment, be used for receiving the message that data gateway is sent, with the sign of the destination address in the message that receives as link queue, in the link queue of safeguarding respectively for different terminals in advance, find the link corresponding formation, in the link queue that finds, the loading condition current according to different links selected a communication network link according to the load balancing principle.The destination address of the message that conversion receives is the NIC address of the network interface card of the link correspondence of selection, and the message with behind the conversion destination address sends to end side by the communication network link of selecting.
Data gateway is the outlet gateway of mobile radio communication and ethernet communication, is used in up link, transmits all messages that transfer to Ethernet from end side, and in down link, transmitting end side need be from all message of Ethernet reception.
Wherein, above-mentioned link management equipment and terminal links queue management equipment; when in the corresponding communication network link of the different physical network cards difference that terminal is inserted, selecting link; except adopting the loading condition current according to different links of foregoing description; select according to the load balancing principle outside the mode of communication network link; can also adopt other modes to select; such as taking to choose the best link of communication quality, link that the bandwidth availability factor is the highest etc., these selection modes are all within the protection range of claim of the present invention.
Embodiment two
Further, the embodiment of the invention two is carried out the system of transfer of data based on what introduce in above-described embodiment one based on different links between the heterogeneous network, be example to insert TD-SCDMA and two physical network cards of WLAN on the terminal, elaborate the method for carrying out transfer of data based on heterogeneous networks link between the heterogeneous network, as shown in Figure 2, detailed process is as follows:
Based on the system architecture in above-described embodiment one, in up link:
Step 201, link management equipment receiving terminal are based on the Microsoft Loopback Adapter address, to the message of network side transmission.For example, terminal sends the access request message that needs a certain webpage of visit based on the Microsoft Loopback Adapter address to network side.
Step 202, link management equipment selects one or more of communication network links in order to message transmission in the corresponding communication network link of two network interface cards (TD-SCDMA network interface card and WLAN network interface card) difference that terminal is inserted.Wherein, link management equipment can but to be not limited to according to the load balancing principle be that message waiting for transmission is selected a communication network link.Perhaps according to the size of the message waiting for transmission that receives, the load condition of taking all factors into consideration the communication network link is that message waiting for transmission is selected a communication network link.
Further, to message waiting for transmission, if the Capacity Ratio of this message is bigger, when the communication network link that uses terminal management apparatus to be initially this message selection waiting for transmission transmits, after transmission a period of time, if this selecteed communication network link load is bigger, in the time of can not continuing to transmit this message again, at this moment, link management equipment can be selected another communication network link for the message of remainder, is about to continue transmission on another communication network link that remaining message waiting for transmission switches to selection.For example, receiving the message capacity that terminal sends based on the Microsoft Loopback Adapter address is 50M, the communication network link of selecting for this message during beginning is the communication network link of TD-SCDMA network interface card correspondence, the communication network link that uses TD-SCDMA network interface card correspondence with this message transmissions after the 20M, because the communication network link load of TD-SCDMA network interface card correspondence is bigger, link management equipment switches to the continuous transmission of communication network link trunking of WLAN network interface card correspondence with the 30M message of remainder at this moment.Like this, can be implemented in the message transmission procedure, in the time of need communicating the network link switching, terminal does not need to regain the communication network link corresponding address information that will switch to and rebulids the access route, again message transmission then, can be implemented between the isomerization network different transmission links on carry out seamless switching, and, in handoff procedure problems such as message packet loss, network delay can not appear.
Further, to message waiting for transmission, if the Capacity Ratio of this message is bigger, when the communication network link that uses terminal management apparatus to be initially this message selection waiting for transmission transmits, can also be according to the capacity of message, and the performance of taking all factors into consideration the communication network link that is inserted into a plurality of network interface card correspondences on the terminal, with the message processing that splits, select suitable communication network link for the message after splitting then, use the communication network link transmission message of selecting then.For example, receiving the message capacity that terminal sends based on the Microsoft Loopback Adapter address is 50M, at this moment, two network interface cards are arranged on the terminal, TD-SCDMA network interface card and WLAN network interface card, the communication network link of two network interface card correspondences all is in upstate, can be according to the actual loading situation of the communication network link of two network interface card correspondences, message is split, as use the 20M capacity of this message of communication network link transmission of TD-SCDMA network interface card correspondence, use the 30M capacity of this message remainder of communication network link transmission of WLAN network interface card correspondence.Like this, can improve preferably in the transmission course of message, to the efficiency of transmission of the communication network link that is inserted in the network interface card correspondence on the terminal, improve network quality and promote user's perceptibility.
Step 203, link management equipment is changed the Microsoft Loopback Adapter address as source address in the message, is converted to the NIC address of network interface card of the communication network link correspondence of selection.Wherein, NIC address can but be not limited to the MAC Address of this network interface card.For example, the MAC Address of supposing the TD-SCDMA network interface card is MAC1, the MAC Address of WLAN network interface card is MAC2, Microsoft Loopback Adapter address as source address is MAC99, what select is the communication network link of WLAN network interface card correspondence if link management equipment is message waiting for transmission, then the Microsoft Loopback Adapter address MAC99 in the message waiting for transmission need be converted to WLAN network interface card corresponding address MAC2 this moment.
Step 204, with the message behind the conversion source address, the network interface card by the communication network link correspondence selected transfers to the Access Network corresponding with this network interface card, transfers to core net via Access Network again, transfers to terminal links queue management equipment by core net.
When step 205, terminal links queue management equipment receive the message that terminal sends, find and this terminal iidentification link corresponding formation according to the sign of sending the terminal of carrying in the message.
Wherein, terminal links queue management equipment can be in advance respectively at each terminal, at least two network interface cards that this terminal is inserted corresponding communication network link are respectively safeguarded as link queue, the terminal iidentification of this terminal is configured to the sign of this link queue, and is this unique formation address of link queue distribution.Follow-up when E-Packeting to data gateway, the source address in the message is all used the formation address of this link queue, that is to say, is sent to the message of data gateway, no matter by which bar communication network link transmission, all uses unique formation address this moment.And corresponding each terminal, owing to all safeguard a unique terminal links formation for each terminal, and each link queue has unique formation address, therefore, be equivalent to concerning each terminal, being equivalent to can't influence the use of user's business of networking for this terminal provides a unique public network address information.
Wherein, for this link queue is distributed unique formation address, can but to be not limited to be an address information that sets in advance, also can be that two network interface cards are distinguished one of them in the corresponding network interface card information, for example, if the MAC Address of two network interface cards is respectively MAC1 and MAC2, so, the formation address of distributing for this link queue can be MAC1 or MAC2, also can be the MAC3 that sets in advance, preferably, the embodiment of the invention two adopts the network interface card information of one of them communication network link correspondence of selection as the formation address of this link queue here.
Particularly, under system initial state, with each terminal link corresponding formation be non-existent, and when inserting at least two network interface cards on the terminal, before message transmission, terminal links queue management equipment needs to set up for each terminal in advance and safeguard a link queue, and as shown in Figure 3, the process of setting up also maintenance link formation can realize by following step:
Step 301, terminal links queue management equipment is the first link management message sent of the communication network link of at least two network interface card correspondences inserting by self of receiving terminal respectively, carries the terminal iidentification of this terminal in this first link management message and the information of the network interface card that passes through respectively.
Wherein, carry the unique identification information corresponding with this terminal in the first link management message, for example can but to be not limited to be the terminal identifier information that arranges for each terminal in advance, or the international mobile equipment identification number of this terminal (IMEI, International Mobile Equipment Identity Number) information etc.
Step 302, terminal links queue management equipment obtain the terminal iidentification that carries in the first link management message.
Step 303, as the sign of distributing to the link queue of safeguarding for this terminal, and the different link maintenances of the network interface card information correspondence of carrying respectively in each first link management message that will receive are in the link queue for this terminal maintenance with the terminal iidentification that obtains for terminal links queue management equipment.
At a time follow-up, if when the communication network link of the network interface card correspondence that terminal self is inserted changes, also comprise step 304:
Step 304, when terminal changes at the network interface card that self inserts, for example increased or reduced the network interface card of an insertion, its corresponding communication network link also can change, at this moment, terminal sends the second link management message, and the network interface card information link corresponding of carrying in the second link management message that terminal links queue management equipment will receive is maintained in the terminal iidentification link corresponding formation that this second link management message carries.
Alternatively, if increased a network interface card different with the communication standard of the existing network interface card that has inserted on the terminal again, for example increased a WCDMA network interface card, at this moment, terminal can adopt dual mode to send the second link management message:
First kind of mode: only the communication network link by the WCDMA network interface card correspondence that increases newly sends the second link management message.
The second way: the communication network link of the whole network interface card correspondences that can insert by self sends the second link management message.
Preferably, the embodiment of the invention two adopts first kind of mode here, and only the communication network link by the network interface card correspondence that increases newly sends the second link management message, like this, can save network transmission resource preferably.
Continue above-mentioned process shown in Figure 2, step 206, terminal links queue management equipment is converted to the source address of the message that receives the formation address of the link queue that finds.For example, if the message that receives is during by the communication network link transmission of TD-SCDMA network interface card correspondence, the source address of the message that receives is this TD-SCDMA NIC address, this TD-SCDMA NIC address is converted to the formation address of the link queue of safeguarding into this terminal.
Step 207, the message with behind the conversion source address is transmitted to data gateway, is sent to Ethernet by data gateway.
In down link:
Step 208, the message that terminal links queue management equipment receiving data gateway is sent.For example, can be the response message of terminal request being visited a certain webpage.
Step 209 is extracted the destination address that this message carries in the message that receives, then with the destination address that extracts as the identification information of searching link queue, in the link queue of safeguarding respectively for different terminals in advance, find the link corresponding formation.Wherein, the destination address that carries in the message can but to be not limited to be two kinds of forms, a kind of is that this destination address is exactly and this link queue link corresponding queue identity, another kind is the sign that can index the link corresponding formation according to this destination address, thereby can find the link corresponding formation, for example destination address can be the formation address of this link queue.Preferably, what the embodiment of the invention two adopted here is first kind of mode, and the destination address that carries in the message is the sign of link queue, does not so just need to go to carry out index process again, can save the processing resource of system preferably.
Step 210, in each communication network link that the link queue that finds comprises, the loading condition current according to different links selected a communication network link according to the load balancing principle.
Wherein, select in many communication network links wherein according to the load balancing principle that one specific implementation elaborates in above-mentioned steps 202, repeat no more here.
Step 211, the destination address that terminal links queue management equipment will obtain from the message that receives is converted to the NIC address of selecting communication network link correspondence.For example, the MAC Address of supposing the TD-SCDMA network interface card is MAC1, the MAC Address of WLAN network interface card is MAC2, the destination address that obtains from the message that receives is MAC3, if terminal links queue management equipment is the communication network link of WLAN network interface card correspondence for this message selection waiting for transmission, then the destination address MAC3 in the message waiting for transmission need be converted to WLAN network interface card corresponding address MAC2 this moment.
Step 212 with the message of conversion behind the destination address,, sends on the corresponding network interface card that end side inserts via core net and the Access Network corresponding with this communication network link by the communication network link selected.Be about to destination address for being converted to the message waiting for transmission of MAC2, by the WLAN communication network link message transmission of selecting.
Step 213, when the network interface card of terminal insertion received the message of network side transmitted, the destination address in the message that conversion receives was the Microsoft Loopback Adapter address.
Particularly, when being inserted in WLAN network interface card on the terminal and receiving message by the communication network link transmission corresponding with this network interface card, obtain the destination address that carries in this message, namely MAC2 is converted to Microsoft Loopback Adapter address MAC99 with this destination address MAC2.
Step 214, the message with behind the conversion destination address is transmitted to terminal by the Microsoft Loopback Adapter address.
That uses that the embodiment of the invention two proposes here carries out the method for transfer of data based on different links between the heterogeneous network, to the message by the heterogeneous network transmission, can utilize the heterogeneous network resource of coexistence, principle based on load balancing, automatically the communication network link of multiplexing multiple different network interface card correspondence, realize the seamless switching between the heterogeneous network link, avoided the problem of Network Packet Loss and data delay in the handoff procedure, improve the efficient that the heterogeneous network link switches preferably, made data transmission efficiency be improved.
Embodiment three
Further, based on the step 201～step 204 among the said method embodiment two, the counterpart terminal side, the embodiment of the invention three proposes a kind of in the up link of message transmissions (being that message transmits to network side from end side) here, carry out the device of transfer of data based on different links between the heterogeneous network, its structure is formed as shown in Figure 4, comprising:
Receiving element 401 is used for the message that receiving terminal sends to network side based on the Microsoft Loopback Adapter address.
Particularly, link management unit 402, concrete at least two corresponding communication network links of network interface cards difference that are used for inserting in terminal, the loading condition current according to different links selected a communication network link according to the load balancing principle.
Transmitting element 404 is used for the message behind the address conversioning unit 403 conversion source addresses, and the communication network link of selecting by the link management unit sends to network side.
Correspondingly, based on the step 213 among the said method embodiment two～214, the counterpart terminal side, the embodiment of the invention three proposes a kind of in the down link of message transmissions (being that message transfers to end side from network side) here, carry out the device of transfer of data based on different links between the heterogeneous network, its structure is formed as shown in Figure 5, comprising:
Transmitting element 502 is used for the message behind the address conversioning unit 501 conversion destination addresses is transmitted to terminal by the Microsoft Loopback Adapter address.
Correspondingly, the counterpart terminal side, the embodiment of the invention three also proposes a kind of link management equipment here, this link management equipment can only possess the disposal ability of the down link of message transmissions, also can be only according to the disposal ability of the last phase link of figure message transmission, certainly, the link management equipment of end side can possess the up link of message transmissions and the disposal ability of down link simultaneously, namely comprise in the down link of message transmissions and/or in the up link of message transmissions of the embodiment of the invention three above-mentioned propositions, carry out the device of transfer of data based on different links between the heterogeneous network.Preferably, the link management equipment that proposes here of the embodiment of the invention three possesses the down link of message transmissions and the disposal ability of up link simultaneously.
Correspondingly, according to the step 205 among the said method embodiment two～207, the map network side, the embodiment of the invention three proposes a kind of in the up link of message transmissions here, carry out the device of transfer of data based on different links between the heterogeneous network, its structure is formed as shown in Figure 6, comprising:
Link queue maintenance unit 601, be used in advance respectively at each terminal, at least two network interface cards that this terminal is inserted corresponding communication network link are respectively safeguarded as link queue, the terminal iidentification of this terminal is configured to the sign of this link queue, and is this unique formation address of link queue distribution.
Particularly, link queue maintenance unit 601, concrete be used for the first link management message that receiving terminal is respectively sent by the communication network link of two network interface card correspondences self inserting at least, carry the terminal iidentification of this terminal in the described first link management message and the information of the network interface card that passes through respectively; As the sign of distributing to the link queue of safeguarding for this terminal, and the different link maintenances of the network interface card information correspondence of carrying respectively in each first link management message that will receive are in the link queue for this terminal maintenance with the terminal iidentification that carries in the first link management message.
The link queue maintenance unit, also be used for follow-uply receiving the communication network link of terminal in the network interface card correspondence of self inserting when changing, during the second link management message sent, the network interface card information link corresponding of carrying in the second link management message that receives is maintained in the terminal iidentification link corresponding formation that this second link management message carries.
Link queue is searched unit 602, be used for follow-up when receiving the message that terminal sends, the respective links formation of finding link queue maintenance unit 601 to safeguard according to the sign of the terminal that sends message.
Transmitting element 604 is used for the message behind the address conversioning unit conversion source address, is transmitted to data gateway.
Correspondingly, based on the step 208 in above-described embodiment two～212, the map network side, the embodiment of the invention proposes a kind of in the down link of message transmissions here, carry out the device of transfer of data based on different links between the heterogeneous network, its structure is formed as shown in Figure 7, comprising:
Receiving element 701 is used for receiving the message that data gateway is sent.
Link queue is searched unit 702, is used for the destination address of message that receiving element 701 is received as the sign of link queue, in the link queue of safeguarding respectively for different terminals in advance, finds the link corresponding formation.
Particularly, link selection unit 703, concrete being used for searched each communication network link that link queue that unit 702 finds comprises in link queue, and the loading condition current according to different links selected a communication network link according to the load balancing principle.
Transmitting element 705 is used for the message behind the address conversioning unit 704 conversion destination addresses, and the communication network link of selecting by link selection unit 703 sends to end side.
Correspondingly, the map network side, the embodiment of the invention three here, a kind of terminal links queue management equipment is also proposed, this terminal links queue management equipment can possess the down link of message transmissions and/or the disposal ability of up link, namely comprise the embodiment of the invention three above-mentioned propositions in the down link of message transmissions and/or in the up link based on heterogeneous network between different links carry out the device of transfer of data.Preferably, the terminal links queue management equipment that proposes here of the embodiment of the invention three possesses the down link of message transmissions and the disposal ability of up link simultaneously.
Correspondingly, the up link of corresponding message transmissions, the embodiment of the invention three also proposes a kind ofly to carry out the system of transfer of data based on different links between the heterogeneous network here, and this system comprises link management equipment and the terminal links queue management equipment of carrying out corresponding function in the up link of message transmissions of above-mentioned proposition.
Correspondingly, the down link of corresponding message transmissions, the embodiment of the invention three also proposes a kind ofly to carry out the system of transfer of data based on different links between the heterogeneous network here, and this system comprises link management equipment and the terminal links queue management equipment of carrying out corresponding function in the down link of message transmissions of above-mentioned proposition.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (18)
1. one kind is carried out the method for transfer of data based on different links between the heterogeneous network, it is characterized in that, comprising:
The message that receiving terminal sends to network side based on the Microsoft Loopback Adapter address;
Respectively in the corresponding communication network link, selects a communication network link at least two network interface cards that terminal is inserted, wherein at least two network interface cards of Cha Ruing respectively the communication network link of correspondence be different links between the heterogeneous network;
Change in the described message as the Microsoft Loopback Adapter address of the source address NIC address for the network interface card of the communication network link correspondence selected; And
With the message behind the conversion source address, send to network side by the communication network link of selecting.
2. the method for claim 1 is characterized in that, in the corresponding communication network link of at least two network interface cards difference that terminal is inserted, selects a communication network link, comprising:
In the corresponding communication network link of at least two network interface cards difference that terminal is inserted, the loading condition current according to different links selected a communication network link according to the load balancing principle.
3. one kind is carried out the method for transfer of data based on different links between the heterogeneous network, it is characterized in that, comprising:
In advance respectively at each terminal, at least two network interface cards that this terminal is inserted corresponding communication network link are respectively safeguarded as link queue, the terminal iidentification of this terminal is configured to the sign of this link queue, and is this unique formation address of link queue distribution;
Follow-up when receiving the message that terminal sends, find the link corresponding formation according to the sign of the terminal that sends message; And
The source address of the message that receives of conversion is the formation address of the link queue that finds;
Message with behind the conversion source address is transmitted to data gateway.
4. method as claimed in claim 3, it is characterized in that in advance respectively at each terminal, at least two network interface cards that this terminal is inserted corresponding communication network link are respectively safeguarded as link queue, the terminal iidentification of this terminal is configured to the sign of this link queue, comprises:
The first link management message sent of the communication network link of at least two network interface card correspondences inserting by self of receiving terminal respectively carries the terminal iidentification of this terminal in the described first link management message and the information of the network interface card that passes through respectively;
As the sign of distributing to the link queue of safeguarding for this terminal, and the different link maintenances of the network interface card information correspondence of carrying respectively in each first link management message that will receive are in the link queue for this terminal maintenance with the terminal iidentification that carries in the first link management message.
5. method as claimed in claim 4 is characterized in that, in advance respectively at each terminal, at least two network interface cards that this terminal is inserted corresponding communication network link are respectively safeguarded as link queue, also comprise:
Follow-uply receiving the communication network link of terminal in the network interface card correspondence of self inserting when changing, during the second link management message sent, the network interface card information link corresponding of carrying in the second link management message that receives is maintained in the terminal iidentification link corresponding formation that this second link management message carries.
6. one kind is carried out the method for transfer of data based on different links between the heterogeneous network, it is characterized in that, comprising:
Receive the message that data gateway is sent;
Destination address in the message that receives as the information of searching the link queue sign, in the link queue of safeguarding respectively for different terminals in advance, is found the link corresponding formation;
In the link queue that finds, select a communication network link;
The destination address of the message that conversion receives is the NIC address of the network interface card of the link correspondence of selection;
Message with behind the conversion destination address sends to end side by the communication network link of selecting.
7. method as claimed in claim 6 is characterized in that, selects a communication network link in the link queue that finds, and comprising:
In each communication network link that the link queue that finds comprises, the loading condition current according to different links selected a communication network link according to the load balancing principle.
8. one kind is carried out the device of transfer of data based on different links between the heterogeneous network, it is characterized in that, comprising:
Receiving element is used for the message that receiving terminal sends to network side based on the Microsoft Loopback Adapter address;
The link management unit is used at least two network interface cards inserting in terminal corresponding communication network links respectively, selects a communication network link, wherein at least two network interface cards of Cha Ruing respectively the communication network link of correspondence be different links between the heterogeneous network;
Address conversioning unit, the NIC address of the network interface card of the communication network link correspondence of selecting for the link management unit as the Microsoft Loopback Adapter address of source address in the message that receives of conversion receiving element;
Transmitting element is used for the message behind the address conversioning unit conversion source address, and the communication network link of selecting by the link management unit sends to network side.
9. device as claimed in claim 8, it is characterized in that described link management unit, concrete at least two corresponding communication network links of network interface cards difference that are used for inserting in terminal, the loading condition current according to different links selected a communication network link according to the load balancing principle.
10. one kind is carried out the device of transfer of data based on different links between the heterogeneous network, it is characterized in that, comprising:
The link queue maintenance unit, be used in advance respectively at each terminal, at least two network interface cards that this terminal is inserted corresponding communication network link are respectively safeguarded as link queue, the terminal iidentification of this terminal is configured to the sign of this link queue, and is this unique formation address of link queue distribution;
Link queue is searched the unit, be used for follow-up when receiving the message that terminal sends, the respective links formation of finding the link queue maintenance unit to safeguard according to the sign of the terminal that sends message;
Address conversioning unit is the formation address that link queue is searched the link queue that finds the unit for the source address of changing the message that receives;
Transmitting element is used for the message behind the address conversioning unit conversion source address, is transmitted to data gateway.
11. device as claimed in claim 10, it is characterized in that, described link queue maintenance unit, concrete be used for the first link management message that receiving terminal is respectively sent by the communication network link of two network interface card correspondences self inserting at least, carry the terminal iidentification of this terminal in the described first link management message and the information of the network interface card that passes through respectively; As the sign of distributing to the link queue of safeguarding for this terminal, and the different link maintenances of the network interface card information correspondence of carrying respectively in each first link management message that will receive are in the link queue for this terminal maintenance with the terminal iidentification that carries in the first link management message.
12. device as claimed in claim 11, it is characterized in that, described link queue maintenance unit, also be used for follow-uply receiving the communication network link of terminal in the network interface card correspondence of self inserting when changing, during the second link management message sent, the network interface card information link corresponding of carrying in the second link management message that receives is maintained in the terminal iidentification link corresponding formation that this second link management message carries.
13. one kind is carried out the device of transfer of data based on different links between the heterogeneous network, it is characterized in that, comprising:
Receiving element is used for receiving the message that data gateway is sent;
Link queue is searched the unit, is used for the destination address of message that receiving element is received as the sign of link queue, in the link queue of safeguarding respectively for different terminals in advance, finds the link corresponding formation;
The link selection unit is used for searching communication network link of link queue selection that the unit finds in link queue;
The NIC address of the network interface card of the link correspondence that address conversioning unit, the destination address that is used for the message that the conversion receiving element receives are selected for the link selection unit;
Transmitting element is used for address conversioning unit is changed message behind the destination address, and the communication network link of selecting by the link selection unit sends to end side.
14. device as claimed in claim 13, it is characterized in that, described link selection unit, concrete being used for searched each communication network link that link queue that the unit finds comprises in link queue, the loading condition current according to different links selected a communication network link according to the load balancing principle.
15. a link management equipment is characterized in that, comprises as the arbitrary described device of claim 8～9.
16. a terminal links queue management equipment is characterized in that, comprises as the arbitrary described device of claim 10～12, and/or as the arbitrary described device of claim 13～14.
17. system that carries out transfer of data based on different links between the heterogeneous network, it is characterized in that, comprise link management equipment and terminal links queue management equipment, wherein link management equipment comprises that as the arbitrary described device of claim 8～9, terminal links queue management equipment comprises as the arbitrary described device of claim 10～12.
18. system that carries out transfer of data based on different links between the heterogeneous network, it is characterized in that, comprise terminal links queue management equipment and link management equipment, wherein terminal links queue management equipment comprises as the arbitrary described device of claim 13～14.
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