CN102378303A - Method and device for selecting WIFI (Wireless Fidelity) access point to access to network - Google Patents
Method and device for selecting WIFI (Wireless Fidelity) access point to access to network Download PDFInfo
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Abstract
The invention provides a method and device for selecting a WIFI (Wireless Fidelity) access point to access to a network. The method specifically comprises the following steps that: when a terminal initiates a network connection request, the terminal is matched with the access range of each usable WIFI access point according to a target address contained in the network connection request; and when at least one WIFI access point of which the access range can reach a target network appointed by the network connection request exists, any one WIFI access point can be selected for the terminal to access to the target network. Each selectable WIFI access point is the usable WIFI access point and can realize the access function, and the connection range meets the requirements of the network connection request, so that the terminal can successfully access to the target network appointed by the network connection request, and services can be executed smoothly.
Description
Technical field
The present invention relates to field of wireless, relate in particular to a kind of method and device of the WIFI of selection access point access network.
Background technology
Wireless Fidelity (WIFI; Wireless Fidelity) technology is the same with Bluetooth technology; Belong to the short-distance wireless communication technology that in office or family, uses, the WIFI network is by WIFI access point (AP, the wireless network of AccessPoint) forming with wireless network card; Wherein, AP is the bridge between cable network and the wireless network, and any terminal that wireless network card is housed all can see through the resource that AP shares cable LAN even wired wide area network, and its operation principle is equivalent to the hub (HUB) or the router of a built-in wireless launcher; Wireless network card then is to be responsible for receiving by the client device that AP transmitted, and realizes fast that through AP the terminal with wireless network card is connected to objective network.
When the terminal of supporting to realize wireless Internet access through the WIFI network; Like notebook computer, net book, mobile phone, personal digital assistant (PDA, Personal Digital Assistant), mobile internet device (MID, Mobile Internet Device) etc.; When being in the environment that a plurality of AP are arranged; The terminal will be carried out network according to the configuration of acquiescence and connected, in the case, if the Network that the AP of acquiescence provides and the Network of terminal actual needs do not match; Then possibly cause access failure, the business that makes can't be carried out.For example: the terminal actual needs is linked into local area network (LAN) A, and the AP that acquiescence is selected be can only support to be linked into local area network (LAN) B the time, utilizes the AP that acquiescence selects can not access to LAN A, will cause the professional failure of carrying out.
Therefore, need badly and introduce the method that a kind of WIFI of selection access point inserts objective network, thereby guarantee that the terminal can connect the network that actual needs inserts through the WIFI access point after selecting, and guarantees professional carrying out smoothly.
Summary of the invention
The embodiment of the invention provides a kind of method and device of the WIFI of selection access point access network; Be used for solving prior art when inserting objective network through the WIFI access point, the WIFI access point that acquiescence is selected can't guarantee the problem of professional smooth execution probably.
A kind of method of selecting Wireless Fidelity WIFI access point access network, this method comprises:
When receiving the network connecting request at terminal, confirm the destination address that comprises in the said network connecting request;
Confirm WIFI access point available in the environment of living in of said terminal, and confirm the access range information of each available WIFI access point;
According to the access range information of each available WIFI access point in the terminal environment of confirming of living in, confirm to insert the WIFI access point of range information and said matching destination address;
The said WIFI access point access network of indicating terminal through confirming.
A kind of device of selecting WIFI access point access network, this device comprises:
The destination address determination module is used for when receiving the network connecting request at terminal, confirming the destination address that comprises in the said network connecting request;
Available WIFI access point determination module is used for confirming the available WIFI access point of said terminal environment of living in, and confirms the access range information of each available WIFI access point;
The access point decision-making module is used for the access range information according to each available WIFI access point of terminal environment of living in of confirming, confirms to insert the WIFI access point of range information and said matching destination address;
The WIFI link block is used for the said WIFI access point access network of indicating terminal through confirming.
When the present invention initiates network connecting request at the terminal; According to the destination address that comprises in the network connecting request; Mate with the access range information of each available WIFI access point in the environment of living in of terminal; When existing at least one access scope can reach the WIFI access point of the objective network that network connecting request points to, can in this at least one WIFI access point, choose a WIFI access point objective network is inserted at the terminal, owing to each optional WIFI access point is available WIFI access point; All can realize access function; And join domain satisfies the requirement of network connecting request, thereby has guaranteed the terminal objective network that points to of access network connection request smoothly, guarantees that business can carry out smoothly.
Description of drawings
The method flow sketch map of the information of each available WIFI access point in a kind of definite terminal environment of living in that Fig. 1 provides for the embodiment of the invention one;
The method flow sketch map of a kind of WIFI of selection access point access network that Fig. 2 provides for the embodiment of the invention two;
The structural representation of the device of a kind of WIFI of selection access point access network that Fig. 3 provides for the embodiment of the invention three;
The structural representation of the device of a kind of WIFI of selection access point access network that Fig. 4 provides for the embodiment of the invention three.
Embodiment
When in the residing environment in terminal, having a plurality of WIFI access point to prior art; Can only utilize default setting to select the WIFI access point; Can not guarantee the problem of professional smooth execution; The embodiment of the invention provides a kind of scheme that a plurality of WIFI access points are selected, and therefrom selects the WIFI access point that meets terminal actual WIFI network needs, to guarantee professional correct execution.
Below in conjunction with Figure of description various embodiments of the present invention are described in detail.
Embodiment one:
In the scheme of the embodiment of the invention; Before the suitable WIFI access point of the access network service selection that is the terminal; At first should confirm the information of the available WIFI access point in the environment of living in of terminal; And these information are recorded in the terminal, so that when the terminal request access network, utilize the information of the available WIFI access point that has write down to select the WIFI access point.Clearly decide the method for the information of the available WIFI access point in the environment of living in of terminal below through embodiment one.
As shown in Figure 1, for confirming the method for the information of each available WIFI access point in the environment of living in of terminal in the embodiment of the invention one, method flow is following:
In confirming terminal environment of living in, before the available WIFI access point, at first need confirm all WIFI access points of terminal environment of living in.In embodiments of the present invention, all WIFI access points of the residing current environment in terminal are that interface through operating system obtains.After having obtained all WIFI access points of terminal environment of living in, can generate the WIFI access point tabulation List A of terminal environment of living in.
Determine after the WIFI access points all in the environment of living in of terminal, further confirm available WIFI access point in all WIFI access points, all can realize access function when guaranteeing to select any WIFI access point access network.To the arbitrary WIFI access point among the ListA, operation below carrying out successively:
Through sending a request message, confirm whether the WIFI access point need carry out authentication to the terminal of inserting, if do not need to the WIFI access point; Confirm that then this WIFI access point is available WIFI access point; If desired, then continue to judge whether the terminal has disposed corresponding authorization information, like authorization informations such as associated user's name/password and agencies; If the terminal has disposed corresponding authorization information; Then this WIFI access point is available WIFI access point, otherwise, confirm that this WIFI access point is disabled WIFI access point.
From List A, obtained in the residing environment in terminal behind all available WIFI access points, can generate available WIFI access point tabulation List B in the residing environment in terminal.
The access scope of considering different WIFI access points is different; The WIFI access point that has can access to LAN (LAN) and the Internet (Internet), and the WIFI access point that has is only with access to LAN, and the local area network (LAN) that different WIFI access point can insert is different; Therefore; Need to confirm the access range information of all available WIFI access points, so that when selecting suitable WIFI access point for the terminal, the destination address that need be connected to the terminal matees.In embodiments of the present invention, the detection method of the access scope of concrete WIFI access point can for:
At first send access request to a reliable Internet address through each available WIFI access point; Judge whether this WIFI access point can insert Internet; If response is arranged in time-out time then can judge that this WIFI access point support inserts Internet; Otherwise, judge that this WIFI access point do not support to insert Internet;
Secondly; To all available WIFI access points; Use operating system interface to obtain the access network segment that this WIFI access point is supported; Confirm the network range that this WIFI access point can insert according to the access network segment of this WIFI access point support, and then confirm the local area network (LAN) that this WIFI access point can insert.
In order to guarantee that business improves the efficient of access objective network and the quality of raising data transmit-receive when carrying out smoothly, the embodiment of the invention also provides following preferred steps:
More excellent; In obtaining terminal environment of living in after the access range information of each available WIFI access point; Can divide into groups to the WIFI access point according to the access range information of each available WIFI access point; Be divided in same group inserting the identical WIFI access point of range information, said access range information is identical, and the information whether the access network segment and this WIFI access point that is meant the support of WIFI access point supports to insert the Internet is all identical.
Be divided in the same grouping inserting the identical available WIFI access point of range information; Make follow-uply when receiving network connecting request,, select WIFI access point to divide into groups at first according to the destination address of said network connecting request; Continue from this grouping, to select the WIFI access point again; Dwindle the scope that the WIFI access point is selected, thereby reduced the time that the WIFI access point is selected, improved the efficient of utilizing the WIFI access point to insert objective network.
In embodiments of the present invention; Can confirm the access capability value of each WIFI access point according to the one or more combinations of parameters in the parameters such as signal strength signal intensity, signal quality and bandwidth rank of WIFI access point; Said signal strength signal intensity, signal quality obtain through operating system interface, and the bandwidth rank is sent request through each WIFI access point to particular address, and also the recording responses time is confirmed.
This step is not limited to after step 103, carry out; Also can be after step 102, to carry out; Promptly no matter whether available WIFI access point is carried out division operation; All can confirm the access capability value of each available WIFI access point, be used for the higher WIFI access point of follow-up selection access capability, the data transmit-receive quality when improving professional the execution.
It is to be noted; All possibly cause in the residing environment in terminal available access point and relevant information thereof to change because the state of WIFI access point changes or the terminal is moved; Ageing in order to guarantee that the WIFI access point is selected, need in time WIFI access point and relevant information thereof available in the environment of living in of terminal to be upgraded.Renewal to WIFI access point available in the environment of living in of terminal and relevant information thereof can be to carry out in the cycle, and as can after step 104, starting and upgrade timer (Timer), when Timer was overtime, execution in step 101 again; Also can be that condition triggers,, trigger execution in step 101 as when receiving network connecting request.
Embodiment two:
As shown in Figure 2, the embodiment of the invention two provides a kind of method of the WIFI of selection access point access network, and method flow is following:
When the terminal has application program to initiate network connecting request, trigger selection to the WIFI access point, determine the destination address that comprises in the said network connecting request.
This step can be the trigger condition of embodiment one, also can when this step is carried out, in the terminal, write down the relevant information of available WIFI according to the mode of embodiment one.
The said available WIFI access-in point information and the access range information of said available WIFI access point can obtain after this step triggers embodiment one by step 201 before; This step is confirmed the WIFI access point with said matching destination address according to the access range information of the available WIFI access point that obtains; The access range information of the information of perhaps said available WIFI access point and available WIFI access point cycle before step 201 carries out embodiment one and preserves in advance; This step reads the access range information of the available WIFI access point of preserving in advance, and the WIFI access point of definite and matching destination address.
In the embodiment of the invention two; Said access range information comprises the access network segment of WIFI access point support and the information whether this WIFI access point supports to insert the Internet, because the destination address that obtains in the step 201 possibly be domain name (DN, Domain Name) information or Internet protocol (IP; Internetprotocol) address; Therefore need utilize domain name system (DNS, Domain Name System) to resolve to the destination address of the network connecting request that obtains in the step 201, judge the pairing objective network of destination address after; Mate with the access range information of WIFI access point, confirm to be used to insert the WIFI access point of objective network.This step specifically comprises:
If said destination address is a domain-name information; Then destination address is resolved through the Internet DNS; If resolve successfully; Then the objective network of decision network connection request sensing is Internet; With there being a WIFI access point that support to insert Internet information to confirm as the WIFI access point with matching destination address in the fixed access range information, otherwise, dns resolution supported for the corresponding local area network (LAN) that inserts of available WIFI access point; Through the corresponding local area network (LAN) DNS that inserts of each available WIFI access point destination address is resolved successively; It is the objective network that network connecting request is pointed to that judgement is resolved successful local area network (LAN) to destination address, and the WIFI access point that this local area network (LAN) is corresponding is confirmed as the WIFI access point with matching destination address, and the corresponding local area network (LAN) that inserts does not support the available WIFI access point of dns resolution to confirm as and the unmatched WIFI access point of destination address;
If said destination address is the IP address; At first destination address and available WIFI access point are inserted the access network segment coupling of supporting in the range information; Confirm as the objective network that network connecting request is pointed to inserting the access network segment of supporting in the range information with the corresponding local area network (LAN) of available WIFI access point of matching destination address; The WIFI access point that this local area network (LAN) is corresponding is confirmed as the WIFI access point with matching destination address; Otherwise the objective network that the decision network connection request points to is Internet, and the WIFI access point that the access scope can be reached Internet is confirmed as the WIFI access point with matching destination address.
It is pointed out that when determining a plurality of access scopes and can reach the WIFI access point of objective network, can select the access point of the conduct of a WIFI access point and said matching destination address arbitrarily.
Special circumstances to the WIFI access point that does not have access scope and matching destination address; Can the set basis default setting, utilize the WIFI access point of acquiescence to insert objective network, concrete; Said default setting can be provided with access point for empty, promptly is free of attachment to objective network.
Behind the access point of determining access scope and said matching destination address, indicating terminal carries out attended operation through the WIFI access point of determining.
Need to prove; Utilize the WIFI access-in point information after dividing into groups in embodiment one scheme to handle if in the present embodiment two be; Grouping information can trigger embodiment one by step 201 and obtain before step 202; Or before the step 201 cycle carry out that embodiment one preserves in advance, then after definite WIFI access point access range information, and before the WIFI access point of definite and said matching destination address; When also further obtaining at least one WIFI access point grouping according to the access range information, then step 202 specifically comprises:
If said destination address is a domain-name information, then destination address is resolved through the DNS of internet domain name system; If resolves successfully, then from first divides into groups, select the WIFI access point of the conduct of a WIFI access point and said matching destination address, the information of support access the Internet is arranged in the said first access range information that comprise in dividing into groups; Otherwise, through each corresponding local area network (LAN) DNS that divides into groups destination address is resolved successively, from destination address being resolved the WIFI access point of the conduct of a WIFI access point of selection and said matching destination address the successful local area network (LAN) DNS corresponding packet;
If said destination address is the Internet protocol IP address, then judge whether to exist second grouping that inserts range information and said matching destination address; If exist second to divide into groups, then from second divides into groups, select the WIFI access point of the conduct of a WIFI access point and said matching destination address; Otherwise, the WIFI access point of selecting the conduct of a WIFI access point and said matching destination address in the packets of information of supporting to insert the Internet is arranged the range information from comprising to insert.
When determining a plurality of access scopes and can reach the WIFI access point of objective network when dividing into groups (comprise when not dividing into groups with); Can further obtain the access capability value of each WIFI access point of access scope and matching destination address; The access capability value of each WIFI access point of said access scope and matching destination address can be to obtain in the access capability value of predetermined all available WIFI access points from embodiment one; And in order to reduce amount of calculation; Practice thrift turn-on time; Further improve access efficiency, also can in present embodiment two, determine after the WIFI access point that the access scope can reach objective network, only further confirm the access capability value of each WIFI access point of access scope and matching destination address.
Can confirm the access capability value of each WIFI access point of access scope and matching destination address according to the one or more combinations of parameters in the parameters such as signal strength signal intensity, signal quality and bandwidth rank of WIFI access point; In present embodiment two; A kind of computational methods of concrete access capability value are provided, and computing formula is following:
Wherein: wherein, R representes the access capability value of the WIFI access point of definite access capability value;
can reach the mean value of each WIFI access point signals intensity of objective network for the access scope;
can reach the mean value of each WIFI access point signals quality of objective network for the access scope; S representes the signal strength signal intensity of the WIFI access point of definite access capability value; Q representes the signal quality of the WIFI access point of definite access capability value; The WIFI access point that B representes to confirm the access capability value can reach the bandwidth rank in each WIFI access point of objective network in the access scope.
Select access point according to the access capability of each access point, then from a plurality of access scopes can reach the WIFI access point of objective network, select a WIFI access point specifically to comprise in the step 202 as the access point of access scope and said matching destination address:
The access capability value of utilizing each WIFI access point is selected a WIFI access point from a plurality of access scopes can reach the WIFI access point of objective network; Can but be not limited to select the access capability value to be higher than any access point in the access point of setting threshold value; Special, can select the access point of the highest access point of access capability value as access scope and said matching destination address.
Embodiment three,
The embodiment of the invention provides a kind of device of the WIFI of selection access point access network, and this device comprises destination address determination module 31, available WIFI access point determination module 32, access point decision-making module 33 and WIFI link block 34:
Destination address determination module 31 is used for when receiving the network connecting request at terminal, confirming the destination address that comprises in the said network connecting request; Available WIFI access point determination module 32 is used for confirming the available WIFI access point of said terminal environment of living in, and confirms the access range information of each available WIFI access point; Access point decision-making module 33 is used for the access range information according to each available WIFI access point of terminal environment of living in of confirming; Confirm to insert the WIFI access point of range information and said matching destination address, said access range information comprises the access network segment of WIFI access point support and the information whether this WIFI access point supports to insert the Internet; WIFI link block 34 is used for the said WIFI access point access network of indicating terminal through confirming.
Said device also comprises grouping module 35, and grouping module 35 is used for the access range information according to each available WIFI access point of confirming, is divided in the same grouping inserting the identical available WIFI access point of range information.
Need to prove; Can under multiple trigger condition, trigger available WIFI access point determination module 32 and grouping module 35 operations; For example: receive at destination address determination module 31 before the network connecting request at terminal; With the cycle is trigger condition; Require available WIFI access point determination module 32 and grouping module 35 periodically to confirm available WIFI access point and the access range information of confirming available WIFI access point, in the case, the apparatus structure sketch map of the selection WIFI access point access network in the present embodiment three is as shown in Figure 3.
The network connecting request that present embodiment three also is not limited to receive with destination address determination module 31 terminal is a trigger condition; Trigger available WIFI access point determination module 32 and periodically confirm available WIFI access point and the access range information of confirming available WIFI access point with grouping module 35; In the case, the apparatus structure sketch map of the selection WIFI access point access network in the present embodiment three is as shown in Figure 4.
Said available WIFI access point determination module 32 specifically is used for confirming all WIFI access points of terminal environment of living in; And will wherein not need authentication; Or need authentication but the WIFI access point that disposed corresponding authorization information in the said terminal is confirmed as available WIFI access point, and confirm the access range information of each available WIFI access point.
Said access point decision-making module 33 specifically is used to confirm comprise the grouping that inserts range information and said matching destination address, and the WIFI access point of the WIFI access point conduct in this grouping that will confirm and said matching destination address.
Said access range information comprises the access network segment of WIFI access point support and the information whether this WIFI access point supports to insert the Internet.
If it is domain-name information that said access point decision-making module 33 specifically is used for said destination address; Then destination address is resolved through the DNS of internet domain name system; If resolve successfully; Then from first divides into groups, select the WIFI access point of the conduct of a WIFI access point and said matching destination address, in the access range information of the said first WIFI access point that comprise in dividing into groups the information of supporting to insert the Internet is arranged, otherwise; Through each corresponding local area network (LAN) DNS that divides into groups destination address is resolved successively, from destination address being resolved the WIFI access point of the conduct of a WIFI access point of selection and said matching destination address the successful local area network (LAN) DNS corresponding packet.
If it is the Internet protocol IP address that said access point decision-making module 33 specifically is used for said destination address; Then judge whether to exist second grouping that inserts range information and said matching destination address; If exist second to divide into groups; Then from second divides into groups, select the WIFI access point of the conduct of a WIFI access point and said matching destination address; Otherwise, the WIFI access point of selecting the conduct of a WIFI access point and said matching destination address in the packets of information of supporting to insert the Internet is arranged the range information from comprising to insert.
Said access point decision-making module 33 specifically is used for confirming according to following formula the access capability value of WIFI access point:
Wherein, R representes the access capability value of the WIFI access point of definite access capability value;
can reach the mean value of each WIFI access point signals intensity of objective network for the access scope;
can reach the mean value of each WIFI access point signals quality of objective network for the access scope; S representes the signal strength signal intensity of the WIFI access point of definite access capability value; Q representes the signal quality of the WIFI access point of definite access capability value; The WIFI access point that B representes to confirm the access capability value with each WIFI access point of said matching destination address in the bandwidth rank.
Said access point decision-making module 33 also is used for the access capability value of each WIFI access point of definite and said matching destination address, and selects the access capability value greater than a WIFI access point setting threshold value.
Said WIFI link block 34 specifically is used for indicating terminal and passes through the WIFI access point access network of the access capability value of selection greater than the setting threshold value.
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, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (15)
1. method of selecting Wireless Fidelity WIFI access point access network is characterized in that this method comprises:
When receiving the network connecting request at terminal, confirm the destination address that comprises in the said network connecting request;
Confirm WIFI access point available in the environment of living in of said terminal, and confirm the access range information of each available WIFI access point;
According to the access range information of each available WIFI access point of confirming, confirm to insert the WIFI access point of range information and said matching destination address;
The said WIFI access point access network of indicating terminal through confirming.
2. the method for claim 1 is characterized in that, confirms WIFI access point available in the environment of living in of said terminal, comprising:
Confirm WIFI access points all in the environment of living in of terminal, and will be wherein do not need authentication, or need authentication but the WIFI access point that disposed corresponding authorization information in the said terminal is confirmed as available WIFI access point.
3. the method for claim 1 is characterized in that, according to the access range information of each available WIFI access point of confirming, confirms to insert the WIFI access point of range information and said matching destination address, specifically comprises:
According to the access range information of each available WIFI access point of confirming, be divided in the same grouping inserting the identical available WIFI access point of range information;
Confirm to comprise the grouping that inserts range information and said matching destination address, and the WIFI access point of the WIFI access point conduct in this grouping that will confirm and said matching destination address.
4. method as claimed in claim 3 is characterized in that, said access range information comprises the access network segment of WIFI access point support and the information whether this WIFI access point supports to insert the Internet;
Confirm to insert the WIFI access point of range information and said matching destination address, specifically comprise:
If said destination address is a domain-name information, then destination address is resolved through the DNS of internet domain name system;
If resolves successfully, then from first divides into groups, select the WIFI access point of the conduct of a WIFI access point and said matching destination address, the information of support access the Internet is arranged in the said first access range information that comprise in dividing into groups;
Otherwise, through each corresponding local area network (LAN) DNS that divides into groups destination address is resolved successively, from destination address being resolved the WIFI access point of the conduct of a WIFI access point of selection and said matching destination address the successful local area network (LAN) DNS corresponding packet.
5. method as claimed in claim 3 is characterized in that, said access range information comprises the access network segment of WIFI access point support and the information whether this WIFI access point supports to insert the Internet;
Confirm to insert the WIFI access point of range information and said matching destination address, specifically comprise:
If said destination address is the Internet protocol IP address, then judge whether to exist second grouping that inserts range information and said matching destination address;
If exist second to divide into groups, then from second divides into groups, select the WIFI access point of the conduct of a WIFI access point and said matching destination address;
Otherwise, the WIFI access point of selecting the conduct of a WIFI access point and said matching destination address in the packets of information of supporting to insert the Internet is arranged the range information from comprising to insert.
6. like the arbitrary described method of claim 1～5, it is characterized in that determine after the WIFI access point with said matching destination address, indicating terminal is through before the said WIFI access point access network of confirming, said method also comprises:
Confirm the access capability value with each WIFI access point of said matching destination address, and select the access capability value greater than a WIFI access point setting threshold value;
The said WIFI access point access network of indicating terminal through confirming specifically comprises:
The access capability value that indicating terminal passes through to select is greater than the WIFI access point access network of setting threshold value.
7. method as claimed in claim 6 is characterized in that, the access capability value of said WIFI access point is confirmed by following at least one parameter or parameter combinations: signal strength signal intensity, signal quality and bandwidth rank.
8. method as claimed in claim 7 is characterized in that, the access capability value of said WIFI access point is definite by following formula,
Wherein, R representes the access capability value of the WIFI access point of definite access capability value;
can reach the mean value of each WIFI access point signals intensity of objective network for the access scope;
can reach the mean value of each WIFI access point signals quality of objective network for the access scope; S representes the signal strength signal intensity of the WIFI access point of definite access capability value; Q representes the signal quality of the WIFI access point of definite access capability value; The WIFI access point that B representes to confirm the access capability value with each WIFI access point of said matching destination address in the bandwidth rank.
9. a device of selecting WIFI access point access network is characterized in that, this device comprises:
The destination address determination module is used for when receiving the network connecting request at terminal, confirming the destination address that comprises in the said network connecting request;
Available WIFI access point determination module is used for confirming the available WIFI access point of said terminal environment of living in, and confirms the access range information of each available WIFI access point;
The access point decision-making module is used for the access range information according to each available WIFI access point of confirming, confirms to insert the WIFI access point of range information and said matching destination address;
The WIFI link block is used for the said WIFI access point access network of indicating terminal through confirming.
10. device as claimed in claim 9 is characterized in that,
Said available WIFI access point determination module; Specifically be used for confirming all WIFI access points of terminal environment of living in; And will wherein not need authentication; Or need authentication but the WIFI access point that disposed corresponding authorization information in the said terminal is confirmed as available WIFI access point, and confirm the access range information of each available WIFI access point.
11. device as claimed in claim 9 is characterized in that, said device also comprises:
Grouping module is used for the access range information according to each available WIFI access point of confirming, is divided in the same grouping inserting the identical available WIFI access point of range information;
Said access point decision-making module specifically is used to confirm comprise the grouping that inserts range information and said matching destination address, and the WIFI access point of the WIFI access point conduct in this grouping that will confirm and said matching destination address.
12. device as claimed in claim 11 is characterized in that,
Said access point decision-making module; Specifically be used for when whether the access network segment and this WIFI access point that said access range information comprises the support of WIFI access point are supported to insert the information of the Internet; If said destination address is a domain-name information; Then destination address is resolved through the DNS of internet domain name system, if resolves successfully, the WIFI access point of the conduct of a WIFI access point of selection and said matching destination address from first grouping then; In the access range information of the WIFI access point that comprises in said first grouping information of supporting to insert the Internet is arranged; Otherwise, through each corresponding local area network (LAN) DNS that divides into groups destination address is resolved successively, from destination address being resolved the WIFI access point of the conduct of a WIFI access point of selection and said matching destination address the successful local area network (LAN) DNS corresponding packet.
13. device as claimed in claim 11 is characterized in that,
Said access point decision-making module; Specifically be used for when whether the access network segment and this WIFI access point that said access range information comprises the support of WIFI access point are supported to insert the information of the Internet; If said destination address is the Internet protocol IP address; Then judge whether to exist and insert range information and divide into groups with second of said matching destination address, if exist second to divide into groups, the WIFI access point of the conduct of a WIFI access point of selection and said matching destination address from second divides into groups then; Otherwise, the WIFI access point of selecting the conduct of a WIFI access point and said matching destination address in the packets of information of supporting to insert the Internet is arranged the range information from comprising to insert.
14. like the arbitrary described device of claim 9～13, it is characterized in that,
Said access point decision-making module also is used for the access capability value of each WIFI access point of definite and said matching destination address, and selects the access capability value greater than a WIFI access point setting threshold value;
Said WIFI link block specifically is used for indicating terminal and passes through the WIFI access point access network of the access capability value of selection greater than the setting threshold value.
15. device as claimed in claim 14 is characterized in that,
Said access point decision-making module specifically is used for confirming according to following formula the access capability value of WIFI access point:
Wherein, R representes the access capability value of the WIFI access point of definite access capability value;
can reach the mean value of each WIFI access point signals intensity of objective network for the access scope;
can reach the mean value of each WIFI access point signals quality of objective network for the access scope; S representes the signal strength signal intensity of the WIFI access point of definite access capability value; Q representes the signal quality of the WIFI access point of definite access capability value; The WIFI access point that B representes to confirm the access capability value with each WIFI access point of said matching destination address in the bandwidth rank.
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