CN101668322B - Network switching method of terminal and terminal equipment - Google Patents
Network switching method of terminal and terminal equipment Download PDFInfo
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- CN101668322B CN101668322B CN2009101903245A CN200910190324A CN101668322B CN 101668322 B CN101668322 B CN 101668322B CN 2009101903245 A CN2009101903245 A CN 2009101903245A CN 200910190324 A CN200910190324 A CN 200910190324A CN 101668322 B CN101668322 B CN 101668322B
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Abstract
The embodiment of the invention relates to the field of E-communication, in particular to a network switching method of a terminal and an terminal equipment. The terminal establishes connection with a first network by a first network card; signals of all networks are scanned to determine a second network conforming to the switching requirement; and finally, the terminal establishes connection with a second network by a second network card so as to automatically switch from the first network to the second network. In the whole network scanning and switching process, user intervention and network selection are not required, the terminal automatically determines the second network conforming to the switching requirement, and automatically switches from the first network to the second network, thus having simple switching operation, high switching efficiency and good availability.
Description
Technical field
The embodiment of the invention relates to electronic communication field, especially a kind of method for switching network of terminal and a kind of terminal equipment.
Background technology
Along with popularizing of WiFi (Wireless Fidelity, wireless network) and 3G (3rd Generation, 3G (Third Generation) Moblie), wireless network becomes the most frequently used network access of people.We can use 3G to insert Internet on train or automobile; Get into places such as airport, coffee shop, with connecting the free WiFi focus of going up the there; Come back home, we can use HomeWiFi or LAN (Local Area Network, local area network (LAN)) netting twine more easily.
When around when having a plurality of WiFi focuses to insert, need the user according to environment manual switchover various network.The user at first inserts a WiFi focus WiFi A, if the user is dissatisfied to this focus speed, can attempt switching to another WiFi focus WiFi B.Like this, the user can attempt the speed of each focus through manually between different WiFi focuses, switching, so that manually select best WiFi focus.
In realizing process of the present invention, the inventor finds to have following problem in the prior art at least: in the prior art, need user's manual switchover network; If unstable networks, then the user needs constantly to repeat the process of manual switchover, complicated operation; Switching efficiency is low, poor availability.
Summary of the invention
The method that the embodiment of the invention provides a kind of network of terminal to switch on the one hand provides a kind of terminal equipment on the other hand, can realize the automatic switchover of network.
The method for switching network at the terminal that the embodiment of the invention provides comprises:
Through first network interface card, foundation is connected with first network;
Scan the signal of each network, confirm to meet one second network that switches requirement;
Through second network interface card, foundation is connected with second network, switches to second network from first network automatically.
The terminal equipment that the embodiment of the invention provides is characterized in that, said equipment comprises:
First link block is used for through first network interface card, and foundation is connected with first network;
Scan module is used to scan the signal of each network, confirms to meet to switch one second network that requires;
Second link block is used for through second network interface card, and foundation is connected with second network, switches to second network from first network automatically.
Can know by above technical scheme; In the embodiment of the invention; The terminal is set up and being connected of first network through first network interface card; And the signal that scans each network switches second network that requires to confirm to meet, and the terminal is set up and being connected of second network through second network interface card afterwards, switches to second network from first network automatically.In whole network sweep and handoff procedure; Do not need user intervention and select network; The terminal confirms to meet second network that switches requirement automatically; And switch to second network from first network automatically, thus the method and apparatus that the embodiment of the invention provides, handover operation is simple, switching efficiency is high, availability is good.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention; To do to introduce simply to the accompanying drawing of required use among the embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of method for switching network flow chart of the embodiment of the invention;
Fig. 2 is the another kind of method for switching network flow chart of the embodiment of the invention;
Fig. 3 is the structural representation of a kind of terminal equipment of the embodiment of the invention;
Fig. 4 is the structural representation of the another kind of terminal equipment of the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Method embodiment
Shown in accompanying drawing 1, the embodiment of the invention provides a kind of method for switching network, and this method may further comprise the steps:
First network interface card here can be WiFi network interface card, wired network adapter, 3G network interface card etc.
Wherein, the WiFi network interface card is used to set up the wireless connections with the WiFi focus, so that the Internet is inserted through the WiFi focus in the terminal; Wired network adapter is used for the wired connection of foundation and lan device or internet (internet), so that the terminal is through lan device or directly insert the Internet; The 3G network interface card is used to set up the wireless connections with base station equipment, so that the terminal is through base station equipment access communications network, and further inserts the Internet.
Through scanning the signal of each network, can learn the connection situation and the signal strength signal intensity of each network; Wherein, For wireless network, when the signal strength signal intensity of wireless network is higher than (comprise and equaling) preset threshold value, think that then this wireless networks conform switches requirement; Otherwise; When if the signal strength signal intensity of wireless network is lower than preset threshold value, think that then this wireless network does not meet the switching requirement, different wireless network (for example WiFi and 3G) can corresponding different threshold value; For cable network, as long as the terminal has connected cable network, then giving tacit consent to cable network is to meet to switch the network that requires.
As a plurality of when meeting the network that switch to require, the terminal can from said meet to switch select one the network that requires as second network.Therefore, scan the signal of each network, confirm that second network that meets the switching requirement can be: the signal that scans each network in a certain order successively; When scanning first network that meets the switching requirement; Select this first to meet the network that switch to require as second network, at this moment, owing to selected second network; Therefore other do not have the network of scanning no longer to scan, so that save the total time of scanning and reduce the power consumption of terminal in scanning process; Perhaps, scan the signal of each network in a certain order successively, when having scanned whole network, select one each network that requires as second network from meeting to switch.
Wherein, in a certain order, can be to scan successively during scanning according to the priority orders of setting, for example, the cable network access priority is the highest, and the WiFi focus inserts and takes second place, and NodeB inserts minimum.Like this, at first, whether the terminal can connect cable network through wired network adapter by end of scan, if, then select cable network as second network, here, meet the network that switches requirement and be cable network; Then; If be not connected with spider lines through wired network adapter; Then the signal strength signal intensity of each WiFi focus can be further scanned at the terminal; Be higher than the WiFi network that meeting of threshold value switch to require so that determine whether signal strength signal intensity,, then select to meet switch in the WiFi network that requires one as second network if having; At last; If the signal strength signal intensity through WiFi network interface card connection WiFi network or each WiFi network all is not lower than threshold value; Then the signal strength signal intensity of each NodeB can be further scanned at the terminal; Be higher than the 3G network that meeting of threshold value switch to require so that determine whether signal strength signal intensity, if having then select 3G network as second network, otherwise the terminal can keep and being connected or breaking off network and connect of first network.
After in step 12, having selected a network as second network, the terminal is set up and being connected and breaking off and being connected of first network of second network in the step 13, thereby switches to second network from first network automatically.
Wherein, before step 13, whether the terminal can further be judged current in that to carry out big capaciated flow network professional, for example data download etc.; To carry out big capaciated flow network professional if the terminal is current, then postpone switching, when postponing one section after or wait for switching again after the big capaciated flow network service ending; Not carry out big capaciated flow network professional if the terminal is current, and when promptly the current flow in terminal was low, then execution in step 13 was accomplished and automaticallyed switch immediately.Like this, there is not the professional well afoot of big capaciated flow network in the time of can guaranteeing to switch, so can reduce the influence of the user being gone up network process as far as possible.
In addition, before step 13, can judge further whether the terminal is stable with being connected of first network; If being connected of terminal and first network is stable, can provide preferably that network connects, then the terminal can keep and being connected of first network, and does not switch to second network; If the terminal is unstable with being connected of first network, promptly first network can not provide network connection preferably, and then the terminal can switch to second network, and disconnection is connected with first network.Wherein, Whether being connected of terminal and first network be stable, can adopt following mode to judge: a network speed threshold value is set, when being higher than (comprise and equaling) network speed threshold value when the terminal with the speed that is connected of first network; Think that then the terminal is stable with being connected of first network; Otherwise, when the speed that connects is lower than the network speed threshold value, then think to connect instability.Further; Terminal and first network to be connected with the terminal all be stable with being connected of second network, the priority that then can compare two connections is switched determining whether, for example: if terminal and the priority that is connected of first network are higher than the priority that is connected of terminal and second network; Then the terminal switches to second network from first network; Otherwise,, then do not switch if terminal and the priority that is connected of first network are not higher than the priority that is connected of terminal and second network.
Among other embodiment, when first network and second network were the network of same nature, for example, second network was the different corresponding respectively WiFi subnets of WiFi focus with second network, and first network interface card and second network interface card can be same network interface cards.For instance, first network (being the corresponding WiFi subnet of WiFi A) is at first inserted through a WiFi focus WiFi A in the terminal; Afterwards; Each network of terminal scanning; Include spider lines, WiFi network, 3G; And from each network, confirm to meet the network that switches requirement, suppose that the terminal is not connected with spider lines this moment, and WiFi subnet and these three networks of 3G network that the network that requires comprises the corresponding WiFi subnet of the 2nd WiFi focus WiFi B, the 3rd WiFi focus WiFi C correspondence are switched in meeting of determining; Then; The terminal is selected one as second network from meeting to switch three networks (the WiFi subnet that the 2nd WiFi focus WiFi B is corresponding, WiFi subnet and 3G network that the 3rd WiFi focus WiFi C is corresponding) that require, and supposes that the second selected network is the corresponding WiFi subnet of the 2nd WiFi focus WiFi B; At last, terminal equipment inserts second network (i.e. the corresponding WiFi subnet of the 2nd WiFi focus WiFi B) through the 2nd WiFi focus WiFi B.Can find out, switch to the 2nd WiFi focus WiFi B from a WiFi focus WiFi A, the network interface card that use at the terminal before and after switching all is the WiFi network interface card, and promptly first network interface card is identical network interface card with second network interface card.
In the embodiment of the invention; The terminal is set up and being connected of first network through first network interface card; And the signal that scans each network switches second network that requires to confirm to meet, and the terminal is set up and being connected of second network through second network interface card afterwards, switches to second network from first network automatically.In whole network sweep and handoff procedure, do not need user intervention and select network, the terminal is confirmed to meet second network that switches requirement automatically, and switches to second network from first network automatically, thus handover operation is simple, switching efficiency is high, availability is good.
Method embodiment
Shown in accompanying drawing 2, the embodiment of the invention provides a kind of method for switching network, and this method may further comprise the steps:
Step 21, the starting terminal network connects;
According to preset priority, attempt from high to low successively connecting network, till connecting some networks.
Step 22, the starting terminal automatic switching function scans the signal of each network;
Each network can be scanned with this according to priority order from high in the end in the terminal, switches the objective network of network for switching that requires so that confirm the highest the meeting of priority; Wherein, consider that the connection of cable network is the most stable, and the relative 3G network of the rate of WiFi network is lower, it is following therefore can to set priority orders: cable network is higher than the WiFi network, and the WiFi network is higher than 3G network; The cable network here can be cable LAN or the internet that inserts through netting twine.
Wherein, the terminal can further be judged the connective stability of current network.If the connection of terminal current network is stable, explain that then the current network quality is better, can satisfy user's demand; Then the terminal can not start automatic switching function, perhaps, though the terminal starts automatic switching function and confirms objective network; But does not switch immediately at the terminal; But with objective network as backup network, when the stability decreases of current network, the terminal switches to objective network from current network again.Whether the connection of judging current network is stable, can adopt the mode that a flow threshold is set, and related content that specifically can reference implementation example one repeats no more here.
Step 23 judges whether the terminal has access to spider lines;
Because the priority of acquiescence cable network is the highest; So the cable network port is at first scanned at the terminal; When the terminal has access to spider lines; As objective network, then the terminal can switch to cable network (step 28) immediately or judge whether that earlier big data on flows business carrying out (step 26) with cable network at the terminal, and breaks off current wireless network and connect (for example WiFi or 3G connect); Otherwise, if the terminal has access to spider lines, the further wireless network of terminal scanning then; Certainly, the terminal has access to spider lines if the terminal starts network in step 21 when connecting, even then the terminal has detected cable network and effectively also needn't switch again in step 23, because cable network has been inserted at the terminal in step 21.
Step 24 judges whether to exist to meet and switches the WiFi network that requires; Switch the WiFi network that requires if exist to meet, then from said meeting selecting one the WiFi network that switches requirement as objective network;
The priority of setting the WiFi network is lower than cable network, but is higher than 3G network; Each wireless WiFi network of terminal scanning is to confirm the signal strength signal intensity of each WiFi network; If exist the signal strength signal intensity of WiFi network to be higher than preset first threshold, think that then the WiFi network that signal strength signal intensity is higher than first threshold value is to meet to switch the WiFi network that requires; If do not exist the signal strength signal intensity of WiFi network to be higher than preset first threshold, promptly the signal strength signal intensity of all WiFi networks all is lower than first threshold value, does not then exist to meet to switch the WiFi network that requires, and at this moment, further 3G network is scanned.
Step 25 judges whether to exist to meet and switches the 3G network that requires; Switch the 3G network that requires if exist to meet, then from said meeting selecting one the 3G network that switches requirement as objective network;
Because it is a plurality of that 3G network also has, thus can scan each 3G network, to confirm the signal strength signal intensity of each 3G network; If exist the signal strength signal intensity of 3G network to be higher than the preset second threshold value, think that then the 3G network that signal strength signal intensity is higher than second threshold value is to meet to switch the 3G network that requires; If do not exist the signal strength signal intensity of 3G network to be higher than the preset second threshold value, promptly the signal strength signal intensity of all 3G networks all is lower than second threshold value, does not then exist to meet to switch the 3G network that requires, and at this moment, can return step 22 and again each network scanned.
Wherein, first threshold value in the step 24 and second threshold value in the step 25 can be that first threshold value and second threshold value can be the same or different, and do not do qualification here according to the network speed value of actual conditions setting or the characterization value of other signal strength signal intensities.
Step 26 is judged and current whether the connection through network of terminal is carried out big data on flows business;
Uploading rate and/or the downloading rate of this moment can be checked in the terminal; And judge the relation between uploading rate and/or downloading rate and the rate-valve value of presetting; For uploading rate and/or downloading rate rate-valve value can be set respectively; For example the uploading rate correspondence is uploaded threshold value, downloading rate corresponding that download threshold value, uploading rate and downloading rate and the total threshold value of correspondence, uploads threshold value, downloads threshold value, total threshold value three can use separately or any a plurality of being used in combination wherein; For instance, when total speed (uploading rate and downloading rate with) during greater than total threshold value (for example 20kbps), it is professional to judge that then big data on flows is being carried out at the terminal, so wouldn't switch, delay a period of time (step 27) is in order to avoid influence customer experience; When total speed during less than total threshold value (for example 20kbps), it is professional to judge that then big data on flows is not carried out at the terminal, can initiate to switch (step 28).
Step 27 is being carried out big data on flows when professional when the terminal is current, postpone a period of time after, initiate to switch (step 28);
Here, postpone a period of time, can be: the time span that postpones setting; Perhaps, monitoring uploading rate and/or downloading rate are delayed to uploading rate and/or downloading rate less than corresponding threshold value.
Step 28 is carried out network automatically and is switched, and switches to objective network from current network;
The terminal is at first set up and being connected of objective network, break off then with being connected of current network (the current network here refer to set up with being connected of objective network before the network of terminal connection); Because the terminal is set up earlier and being connected of objective network, and then being connected of disconnection and current network, so the moment switching can be realized in the terminal, let the user experience process, thereby reach the purpose of virtual seamless switching less than switching.
Wherein, Step 26 is an optional step; The purpose of this step is professional in order not influence big data on flows, and in practical application, when step 23, step 24 or step 25 have been confirmed an objective network; Terminal can not improve rapid 26 the judgement and the time-delay of step 27, and directly carry out the switching of step 28.At this moment; Owing to adopted virtual seamless switching (set up earlier, disconnection and current network is connected again) in the step 28 with being connected of objective network; So network is not to be communicated with to break off for the user always; Transmit owing to changing and big data on flows is professional, promptly again data are carried out route, therefore have of short duration pause or interruption by various network; When having adopted step 26 and step 27 because the terminal switches in business datum flow very little (even not having the business datum flow) time, so business datum the speed of route is fast again, business can not produce and pause or interrupt for the user.
In addition; Because it is a plurality of that the WiFi network generally has, therefore can three WiFi networks for example be arranged to the further prioritization of WiFi network; Be respectively WiFi A, WiFi B, WiFi C, priority then can be set be WiFi A＞WiFi B＞WiFi C from high to low.When current network and objective network are the network of same nature, for example all be the WiFi network, then can decide to connect which WiFi network according to the height of priority.For instance, suppose that the current network that the terminal connects is WiFi B; If the signal of WiFi B is fine, even terminal scanning meets to switch the network that requires to WiFi A and/or WiFi B, the terminal also can be selected not switch, and maintenance is connected with WiFi B's; When the signal of WiFi B very poor (when for example being lower than certain thresholding),, attempt connecting WiFi A so if the signal of WiFi A is higher than thresholding; If the signal of WiFi A is lower than thresholding equally or connects WiFi A failure, reexamine WiFi C, if WiFi C signal is higher than thresholding, then attempt connecting WiFi C, otherwise the connection that continues to keep WiFi B.
In the handoff procedure of step 28, if when attempting at the terminal connecting with objective network, the network connection failure thinks that then this objective network is unstable at present, can postpone to connect retry behind the certain hour.Wherein, if carried out repeatedly connecting retry, the delay time lag between then per twice adjacent connection attempted can be regular length or variable-length.For example, delay time lag T can set according to frequency of failure n, delay time lag T=2
nIndividual chronomere promptly attempts connecting after the failure with objective network at terminal initial, and at interval 2
1=2 chronomeres carry out connecting retry the first time, if first connect retry and also failed, then first connect the retry failure after more at interval 2
2=4 chronomeres carry out connecting the second time retry, by that analogy; In addition, maximum delay time can be set at interval, 10 chronomeres for example are so after terminal second connects the retry failure, owing to connect the delay time lag (2 of retry correspondence for the third time
4=16 chronomeres) 10 chronomeres have been surpassed; Connect retry for the third time so no longer be carried out at, like this, can guarantee that the number of times that connects retry is defined within the specific limits; Can undying execution not connect retry; Avoid thereby the inefficacy network is constantly connected retry waste Internet resources, also optimized efficient simultaneously, strengthened user experience.
In the embodiment of the invention, the terminal is at first set up and being connected of current network, and the signal that scans each network switches the objective network that requires to confirm to meet, and the terminal is set up and being connected of objective network afterwards, switches to objective network from current network automatically.In whole network sweep and handoff procedure, do not need user intervention and select network, the terminal is confirmed to meet the objective network that switches requirement automatically, and switches to objective network from current network automatically, thus handover operation is simple, switching efficiency is high, availability is good.
Apparatus embodiments
Shown in accompanying drawing 3, the embodiment of the invention provides a kind of terminal equipment, and this equipment comprises with lower module:
Wherein, said first link block 31 also is used for, second link block 33 set up through second network interface card with being connected of second network after, disconnected end is connected with first network.
Optional, said scan module 32 may further include: priority unit 321 is used to be provided with the priority orders of each network; With network sweep unit 322; Be used for scanning successively the signal of each network according to the priority orders that priority unit 321 is set; When scanning first when meeting the network that switch to require, select this first to meet and switch the network that requires as second network, perhaps scan the signal of each network successively according to the priority orders of setting; When having scanned whole network, select one each network that requires as second network from meeting to switch.
With reference to figure 4, optional, said terminal equipment can also comprise: rate judge module 34 is used to judge that whether terminal current network flow speed is greater than rate-valve value; After if terminal current network flow speed greater than rate-valve value, then postpones a period of time, reinform second link block 33 and set up and being connected of second network through second network interface card; Otherwise, if terminal current network flow speed less than rate-valve value, then notifies second link block 33 to set up and being connected of second network through second network interface card immediately.
With reference to figure 4, optional, said terminal equipment can also comprise: priority judge module 35 is used to judge the priority of first network and second network; If the priority of first network is higher than second network, then do not notify second link block 33 to set up and being connected of second network through second network interface card; Otherwise,, then notify second link block 33 to set up and being connected of second network through second network interface card if the priority of second network is higher than first network.
With reference to figure 4, optional, said terminal equipment can also comprise: judgement of stability module 36 is used to judge the connection stability of the terminal and first network; If being connected of terminal and first network is stable, then do not notify second link block 33 to set up and being connected of second network through second network interface card; Otherwise,, then notify second link block 33 to set up and being connected of second network through second network interface card if being connected of terminal and first network is unstable.
Wherein, with reference to figure 4, above-mentioned terminal equipment can comprise any one or a plurality of combination arbitrarily in rate judge module 34, priority judge module 35, the judgement of stability module 36 simultaneously.When above-mentioned terminal equipment comprises a plurality of combination arbitrarily in rate judge module 34, priority judge module 35, the judgement of stability module 36 simultaneously, can set the order of judgement, the module in each combination is judged according to the order of setting successively; Here, the order of judgement can freely be set, and does not do qualification.
In above-mentioned terminal equipment, the said network that switches requirement that meets can be: if the terminal has connected cable network, then this cable network is to meet to switch the network that requires; Perhaps, if the terminal is not connected with spider lines, then when the signal strength signal intensity of wireless network was higher than preset threshold value, then this wireless network was to meet to switch the network that requires.Said first network can be a kind of in WiFi network, cable network, the 3G network; Said second network can be a kind of in WiFi network, cable network, the 3G network; Said first network and said second network can be networks of different nature, or the different sub-network of the network of same nature (for example, first network is the different corresponding WiFi subnets of WiFi focus with second network).Preferably, the priority orders that can set each network is followed successively by cable network, WiFi network, 3G network from high to low.
Wherein, in above-mentioned terminal equipment, the related content that the concrete mode of various judgements etc. can reference method embodiment repeats no more at this.Above-mentioned terminal equipment can be used for carrying out aforesaid method embodiment.
In the embodiment of the invention; The terminal is set up and being connected of first network through first network interface card; And the signal that scans each network switches second network that requires to confirm to meet, and the terminal is set up and being connected of second network through second network interface card afterwards, switches to second network from first network automatically.In whole network sweep and handoff procedure, do not need user intervention and select network, the terminal is confirmed to meet second network that switches requirement automatically, and switches to second network from first network automatically, thus handover operation is simple, switching efficiency is high, availability is good.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method; Be to instruct relevant hardware to accomplish through computer program; Described program can be stored in the computer read/write memory medium; This program can comprise the flow process like the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
In a word, the above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the method for switching network at a terminal is characterized in that, said method comprises:
Through first network interface card, foundation is connected with first network;
Scan the signal of each network, confirm to meet one second network that switches requirement;
Through second network interface card, foundation is connected with second network, switches to second network from first network automatically;
Wherein, said first network is a kind of in WiFi network, cable network, the 3G network; Said second network is a kind of in WiFi network, cable network, the 3G network; Said first network and said second network are networks of different nature;
And, automatically when first network switches to second network, the terminal set up through second network interface card with being connected of second network after, disconnection is connected with first network;
Said pass through second network interface card set up with being connected of second network before, said method also comprises:
Judge that whether terminal current network flow speed is greater than rate-valve value;
After if terminal current network flow speed greater than rate-valve value, then postpones a period of time, set up and being connected of second network through second network interface card again; Otherwise, if terminal current network flow speed less than rate-valve value, is then set up and being connected of second network through second network interface card immediately.
2. the method for claim 1 is characterized in that, said confirm to meet switch one second network that requires and comprise:
Scan the signal of each network successively according to the priority orders of setting, meet when switching the network that requires, select this first to meet and switch the network that requires as second network when scanning first; Perhaps
Scan the signal of each network successively according to the priority orders of setting, when scan whole network, one of selection is as second network from meet each network that switches requirement.
3. method as claimed in claim 2 is characterized in that, the said network that switches requirement that meets is: if the terminal has connected cable network, then this cable network is to meet to switch the network that requires; Perhaps, if the terminal is not connected with spider lines, then when the signal strength signal intensity of wireless network was higher than preset threshold value, then this wireless network was to meet to switch the network that requires.
4. the method for claim 1 is characterized in that, said pass through second network interface card set up with being connected of second network before, said method also comprises:
Judge the priority of first network and second network;
If the priority of first network is higher than second network, then do not set up and being connected of second network through second network interface card; Otherwise,, then set up and being connected of second network through second network interface card if the priority of second network is higher than first network.
5. the method for claim 1 is characterized in that, said pass through second network interface card set up with being connected of second network before, said method also comprises:
Judge the connection stability of the terminal and first network;
If being connected of terminal and first network is stable, then do not set up and being connected of second network through second network interface card; Otherwise,, then set up and being connected of second network through second network interface card if being connected of terminal and first network is unstable.
6. like each described method of claim 1 to 5, it is characterized in that the priority orders of setting each network is followed successively by cable network, WiFi network, 3G network from high to low.
7. a terminal equipment is characterized in that, said equipment comprises:
First link block is used for through first network interface card, and foundation is connected with first network;
Scan module is used to scan the signal of each network, confirms to meet to switch one second network that requires;
Second link block is used for through second network interface card, and foundation is connected with second network, switches to second network from first network automatically;
Wherein, said first network is a kind of in WiFi network, cable network, the 3G network; Said second network is a kind of in WiFi network, cable network, the 3G network; Said first network and said second network are networks of different nature;
And said first link block also is used for, second link block set up through second network interface card with being connected of second network after, disconnected end is connected with first network;
Said equipment also comprises: rate judge module is used to judge that whether terminal current network flow speed is greater than rate-valve value; After if terminal current network flow speed greater than rate-valve value, then postpones a period of time, reinform second link block and set up and being connected of second network through second network interface card; Otherwise, if terminal current network flow speed less than rate-valve value, then notifies second link block to set up and being connected of second network through second network interface card immediately.
8. equipment as claimed in claim 7 is characterized in that, said scan module comprises:
Priority unit is used to be provided with the priority orders of each network;
The network sweep unit is used for scanning successively according to the priority orders of setting the signal of each network, meets when switching the network that requires when scanning first, selects this first to meet and switch the network that requires as second network; Perhaps scan the signal of each network successively, when having scanned whole network, select one each network that requires as second network from meeting to switch according to the priority orders of setting.
9. like claim 7 or 8 described equipment, it is characterized in that said equipment also comprises:
The priority judge module is used to judge the priority of first network and second network; If the priority of first network is higher than second network, then do not notify second link block to set up and being connected of second network through second network interface card; Otherwise,, then notify second link block to set up and being connected of second network through second network interface card if the priority of second network is higher than first network.
10. like claim 7 or 8 described equipment, it is characterized in that said equipment also comprises:
The judgement of stability module is used to judge the connection stability of the terminal and first network; If being connected of terminal and first network is stable, then do not notify second link block to set up and being connected of second network through second network interface card; Otherwise,, then notify second link block to set up and being connected of second network through second network interface card if being connected of terminal and first network is unstable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101903245A CN101668322B (en) | 2009-09-17 | 2009-09-17 | Network switching method of terminal and terminal equipment |
Applications Claiming Priority (1)
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