CN1705290A - Method for accessing WLAN - Google Patents
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- CN1705290A CN1705290A CN 200410046339 CN200410046339A CN1705290A CN 1705290 A CN1705290 A CN 1705290A CN 200410046339 CN200410046339 CN 200410046339 CN 200410046339 A CN200410046339 A CN 200410046339A CN 1705290 A CN1705290 A CN 1705290A
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Abstract
A method for accessing wireless area local network, which contains 1, wireless area local network (WLAN) user end selecting a Service Set Identifier (SSID) and sending access request carrying said SSID to corresponded WLAN, 2, WLAN user end judging whether said access is successful, if it is, then jumping out said process otherwise executing step 1, in step 1, WLAN selecting SSID form high to low sequence in the prestored WLAN priority list or according to automatically monitored SSID combined with stored SSID priority.
Description
Technical field
The present invention relates to the wireless lan (wlan) technology, particularly relate to a kind of method that inserts WLAN (wireless local area network).
Background technology
The WLAN technology is the product that computer network combines with wireless communication technology.WLAN need not cable medium, and with wireless channel as transmission medium, utilize electromagnetic wave in air, to transmit and receive data.Therefore WLAN can be used as the expansion of cable LAN, also can be used as the alternative facility of cable LAN, provides very strong networking flexibility, can make the user really realize at any time, everywhere, accessing to wide band network optionally.
Compare with cable LAN, WLAN has the following advantages: it is convenient to install, and is not subjected to the restriction of wiring pad position, has the incomparable flexibility of cable LAN; Wide coverage, maximum transmitted scope can reach tens kilometers; Be easy to expansion, can select the various configurations mode as required flexibly, and the characteristic that provides cable network such as roaming to provide; The transmission rate height can reach 11Mbit/s or 54Mbit/s; Strong interference immunity is set up, is disposed and safeguards more or less freely.
Has above-mentioned many-sided advantage just because of WLAN, so its development is very rapid.At present, WLAN in the hotel, public arenas such as airport, hospital, coffee shop, market and school have obtained using widely, and have progressively entered into family.
In wlan network, (Service Set Identifier, SSID) mechanism is the most basic a kind of authentication mechanism to service set identifier identifier.In each wlan network zone, (AccessPoint AP) has oneself SSID sign to WAP (wireless access point), and the SSID sign of each AP is set by the owner of AP, and the owner of AP can be WLAN operator, place owner or individual consumer etc.
When WLAN user will insert certain wlan network zone, the user must know the SSID sign of this wlan network, the user sends the access request of carrying the SSID sign by the AP of wlan client in this wlan network zone, after AP receives the request of access, judge whether SSID sign that client sends and the SSID of itself identify identical, if identical, AP allows this user access network so, if different, AP will refuse this user access network so.
But the user can not understand the SSID sign in WLAN zone, its place at any time, such as, when the user roamed into other city, which operator the wlan network that can't understand its airport, place belonged to, and also can't obtain the SSID sign of this wlan network.
In order to make the user can obtain the SSID sign of its place wlan network, present solution is: the AP in each wlan network sends the form of its SSID sign with broadcast, after wlan client receives broadcast, from the broadcast that receives, obtain the SSID sign of each wlan network in its region.
Fig. 1 is that the user inserts the flow chart of WLAN (wireless local area network) in the prior art.Referring to Fig. 1, in the prior art, the detailed process that the user inserts WLAN (wireless local area network) may further comprise the steps:
Step 101:WLAN client receives the broadcast that has wlan network SSID sign that AP sends.
Step 102:WLAN client detects the signal strength signal intensity of each wlan network, and acquisition can reach wlan network.
Here, wlan client detects the signal strength signal intensity of each wlan network, with signal strength values greater than the wlan network of threshold value as reaching wlan network.
Step 103: the user manually searches the wlan network that can insert on wlan client, from reached at the wlan network SSID sign that wlan client shows, selects one arbitrarily as current SSID sign.
Here, can reach wlan network SSID sign is in step 101, is obtained from broadcast by wlan client.
Step 104: the access request that the user will carry current SSID sign by wlan client is sent to the AP in the corresponding wlan network of this SSID sign.
Step 105:WLAN client judges that by the access success message that whether receives AP return in setting-up time this inserts whether success, if receive, think that then this inserts successfully, execution in step 106, otherwise it is unsuccessful to think that this inserts, execution in step 107.
Step 106:WLAN client shows to the user and inserts successfully, directly execution in step 108.
Step 107:WLAN client shows access failure to the user, if the user need proceed access attempts, then returns step 103, if the user does not proceed access attempts, then execution in step 108.
Step 108: process ends.
AP constantly broadcasts its SSID and identifies, though can make wlan client obtain SSID sign back access wlan network, also can make some other equipment to attack or destruction AP in acquisition SSID sign back.Therefore, the AP of some wlan network does not broadcast its SSID sign from security standpoint, even the user is in this wlan network zone, still can't learn the SSID sign of AP in this wlan network.The user will insert the not wlan network of Broadcast SSIDs sign of this kind, then can carry out access attempts under the situation of knowing its SSID sign in advance.
As seen, there is following shortcoming in prior art:
When 1, the user will insert wlan network, must carry out checking the SSID sign of AP in its current wlan network that inserts by wlan client, current SSID sign is set, and sends a series of loaded down with trivial details operations such as inserting message, thereby make troubles for user's use.
2, because the wlan network overlay area is less, when the change of user's the band of position, its wlan network that can insert changes possibly, the user will insert wlan network, then must check the SSID sign of AP in its current wlan network that inserts again, again insert the sequence of operations process of wlan network, thereby taken user's time, reduced the service quality of wlan network.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method that inserts WLAN (wireless local area network), makes wlan client can finish all processes that inserts WLAN (wireless local area network) automatically.
In order to achieve the above object, technical scheme of the present invention is achieved in that
A kind of method that inserts WLAN (wireless local area network) may further comprise the steps:
A, wlan client are selected a SSID, and send the access request of carrying this SSID to the wlan network of this SSID correspondence;
B, wlan client judge whether this inserts successful, if this flow process is then jumped out in success, otherwise execution in step A.
Preserve at least one SSID in advance in wlan client, SSID described in the steps A is that wlan client is selected from the SSID that self preserves.
This method further comprises: wlan client receives the broadcast that has its SSID sign that AP sends, and obtains SSID from broadcast;
SSID described in the steps A selects among the SSID of wlan client from broadcast.
Steps A comprises:
A11, wlan client judge among the SSID in the broadcast whether have the not SSID of selected mistake, if exist, and execution in step A12 then, otherwise process ends;
Select a not SSID of selected mistake among A12, the wlan client SSID from broadcast, and send the access request of carrying this SSID to the wlan network of this SSID correspondence.
Be provided with in wlan client in advance and preserve at least one SSID and priority thereof, SSID described in the steps A is select from wlan client according to priority one the not SSID of selected mistake.
Before steps A, this method further comprises: wlan client receives the broadcast that has its SSID sign that AP sends, and obtains SSID from broadcast, and wlan client judges whether the SSID of self preservation is identical with SSID in the broadcast,
If it is identical, then in steps A, wlan client is at first judged the SSID all selected mistake whether in the broadcast, if, then jump out this flow process, otherwise, wlan client is according to the priority of the SSID that self preserves, select a not SSID of the limit priority of selected mistake among the SSID from broadcast, and then send the access request of carrying this SSID to the corresponding wlan network of this SSID
If inequality, then jump out this flow process.
Steps A comprises:
A21, wlan client judge among the SSID that self preserves whether have the not SSID of selected mistake, if exist, and execution in step A22 then, otherwise jump out this flow process;
A22, wlan client are selected a not SSID of the limit priority of selected mistake from the SSID that self preserves, and send the access request of carrying this SSID to the wlan network of this SSID correspondence.
Described SSID and priority thereof are provided with by user or operator.
Two parts that are provided with operator that described SSID and priority thereof comprise that the user is provided with; Described wlan client is at first selected SSID according to SSID and priority thereof that the user is provided with, and then according among the set SSID and priority thereof of operator, with the user SSID inequality and priority thereof is set, and selects SSID.
In step B, described wlan client judges that by the access success message that whether receives AP return in setting-up time this inserts whether success.
As seen, the method for the present invention's proposition has the following advantages:
1, in the present invention, wlan client can be selected the SSID sign automatically according to the wlan network prioritised list of its storage inside, and insert corresponding wlan network zone, whole access procedure need not the user and participates in, therefore, the user need not to carry out inserting in the prior art sequence of operations process of wlan network again, thereby convenient for users to use.
2, in the present invention, user or operator can be arranged in the wlan network prioritised list using the SSID sign always, and the user also can insert wlan network commonly used under the situation of the SSID sign that need not to remember AP in the wlan network.
3, in the present invention, the user can define SSID sign and its priority in the wlan network prioritised list according to service needed or the hobby of oneself, so according to the order of the wlan network of each time of priority selection of SSID sign and access, being the needs according to the user, wlan client carries out.And, owing to the user can change the wlan network prioritised list of its definition, thus the needs that satisfied the customer service development and changed.
Description of drawings
Fig. 1 is that the user inserts the flow chart of WLAN (wireless local area network) in the prior art.
Fig. 2 is a flow chart of realizing embodiments of the invention one.
Fig. 3 is a flow chart of realizing embodiments of the invention two.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with drawings and the specific embodiments.
In the present invention, in order wlan client can be finished automatically select and insert all processes of wlan network, the function of wlan client is strengthened the wlan network prioritised list that storage sets in advance in wlan client.The wlan network prioritised list can be defined by the user or be defined by operator.The user selects to use one or both in the wlan network prioritised list of user-defined wlan network prioritised list and operator's definition in wlan client according to the needs of oneself.If the user selects to use this two kinds of tabulations simultaneously, the priority of then user-defined wlan network prioritised list is higher than the wlan network prioritised list of operator's definition, be that wlan client reads user-defined wlan network prioritised list earlier, and then read the wlan network prioritised list of operator's definition.
The form of the wlan network prioritised list of user or operator's definition is a lot, but must comprise the SSID sign of a limit priority in the tabulation at least.Such as, the wlan network prioritised list can be defined as form as shown in table 1.
| SSID identifies 1 (limit priority) |
| SSID identifies 2 (the 2nd priority) |
| SSID identifies 3 (the 3rd priority) |
| SSID identifies 4 (the 4th priority) |
| SSID identifies 5 (the 5th priority) |
| SSID identifies 6 (the 6th priority) |
| SSID identifies 7 (the 7th priority) |
| SSID identifies 8 (lowest priorities) |
Table 1
For user-defined wlan network prioritised list, the user can identify and priority level according to the SSID that the service needed of oneself is changed in the tabulation at any time.For the wlan network prioritised list of operator's definition, the user can not revise voluntarily.
In the present invention, wlan client comprises according to the automatic method of selecting and insert wlan network of the wlan network prioritised list of its storage: the priority according to the Broadcast SSIDs sign that receives is selected and is inserted; Priority according to the sign of the SSID in the wlan network prioritised list is selected and is inserted.
Select and insert the process of WLAN (wireless local area network) according to the priority of the sign of the SSID in the broadcast that receives below in conjunction with embodiment one explanation wlan client.
Embodiment one:
Fig. 2 is a flow chart of realizing embodiments of the invention one.As shown in Figure 2, present embodiment realizes that the detailed process of automatic access of radio network may further comprise the steps:
Step 201:WLAN client receives the broadcast that has wlan network SSID sign that AP sends.
Here, AP sends broadcast at regular intervals, and wlan client detects and receive the broadcast that AP sends at any time.
Step 202:WLAN client detects the signal strength signal intensity of each wlan network, judges whether to exist to reach wlan network, if exist, then execution in step 203, otherwise, execution in step 212.
Here, wlan client detects the signal strength signal intensity of each wlan network, if there be the wlan network of signal strength values, then think to exist to reach wlan network greater than threshold value, otherwise, think not exist to reach wlan network.
Step 203:WLAN client judges whether that the SSID sign that can reach wlan network is included in the wlan network prioritised list, if having, then execution in step 204, otherwise execution in step 208.
Here, the SSID sign wlan client in step 201 that can reach wlan network obtains from broadcast.
Step 204:WLAN client is according to the priority level of each SSID sign of storing in the wlan network prioritised list, determines the priority of SSID sign of reached at the wlan network of its acquisition.
Here, referring to table 1, be SSID sign 1, SSID sign 3 and SSID sign 11 such as what wlan client obtained from broadcast, because SSID sign 11 is not in the wlan network prioritised list of wlan client storage, so priority level according to SSID sign 1 of storing in the wlan network prioritised list and SSID sign 3, the priority level of determining SSID sign 1 is the highest, and the priority level of SSID sign 3 is inferior high.
Step 205:WLAN client is from reached at the wlan network SSID sign of determining priority, select a not SSID sign of the limit priority of selected mistake, initiate to insert request to the corresponding wlan network of this SSID sign, and in this access request, carry this SSID sign.
Step 206:WLAN client judges whether this inserts successful, if success, then execution in step 211, otherwise execution in step 207.
During step 207:WLAN client judges that reached at the wlan network SSID that determines priority identifies, whether there is the not SSID sign of selected mistake,, then returns step 205 if exist, otherwise execution in step 208.
During step 208:WLAN client judges that reached at the wlan network SSID that is not included in the wlan network prioritised list identifies, whether have the not SSID sign of selected mistake, if exist, then execution in step 209, otherwise, execution in step 212.
Step 209:WLAN client never is included in the SSID sign of reached at the wlan network in the wlan network prioritised list, select a not SSID sign of selected mistake arbitrarily, initiate to insert request to the corresponding wlan network of this SSID sign, and in this access request, carry this SSID sign.
Step 210:WLAN client judges whether this inserts successful, if success, then execution in step 211, otherwise return step 208.
Step 211:WLAN client shows access success message, process ends.
Step 212:WLAN client shows access failure message, process ends.
Because the AP in current some wlan network that inserts of user does not broadcast its SSID sign, and the sign of the SSID in the wlan network prioritised list of wlan client storage is identical with the SSID sign of AP in the wlan network that the user can insert probably, therefore, select and insert the process of WLAN (wireless local area network) according to the priority of SSID sign in the wlan network prioritised list below in conjunction with embodiment two explanation wlan clients.
Embodiment two:
Fig. 3 is a flow chart of realizing embodiments of the invention two.As shown in Figure 3, present embodiment realizes that the detailed process of automatic access of radio network may further comprise the steps:
Step 301:WLAN client receives the broadcast that has wlan network SSID sign that AP sends.
Step 302:WLAN client detects the signal strength signal intensity of each wlan network, judges whether to exist to reach wlan network, if exist, then execution in step 303, otherwise, execution in step 311.
Step 303:WLAN client is selected a not SSID sign of the limit priority of selected mistake from the wlan network prioritised list, initiate to insert request to the corresponding wlan network of this SSID sign, and carry this SSID sign in this access request.
Step 304:WLAN client judges whether this inserts successful, if success, then execution in step 310, otherwise execution in step 305.
Step 305:WLAN client judges whether there is the not SSID sign of selected mistake in the wlan network prioritised list, if exist, then return step 303, otherwise, execution in step 306.
Step 306:WLAN client judges whether that the SSID sign that can reach wlan network is not included in the wlan network prioritised list, if having, then execution in step 307, otherwise execution in step 311.
Here, the SSID sign wlan client in step 301 that can reach wlan network obtains from broadcast.
During step 307:WLAN client judges that the SSID of reached at the wlan network in not being included in the wlan network prioritised list identifies, whether have the not SSID sign of selected mistake, if exist, then execution in step 308, otherwise, execution in step 311.
Step 308:WLAN client never is included in the SSID sign of reached at the wlan network in the wlan network prioritised list, select arbitrarily a not SSID sign of selected mistake, and this SSID sign is carried at sends to this SSID in the request of access and identify pairing wlan network.
Step 309:WLAN client judges whether this inserts successful, if success, then execution in step 310, otherwise return step 307.
Step 310:WLAN client shows access success message, process ends.
Step 311:WLAN client shows access failure message, process ends.
In the foregoing description 1 and embodiment 2, wlan client is to select the SSID sign according to the priority of preserving in its Internal-WLAN network prioritised list, in realizing other embodiments of the invention, wlan client also can be from the wlan network prioritised list or select the SSID sign arbitrarily from the SSID sign of reached at the wlan network that obtains.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, 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, a kind of method that inserts WLAN (wireless local area network) is characterized in that, this method may further comprise the steps:
A, WLAN (wireless local area network) wlan client are selected a service set identifier identifier SSID, and send the access request of carrying this SSID to the wlan network of this SSID correspondence;
B, wlan client judge whether this inserts successful, if this flow process is then jumped out in success, otherwise execution in step A.
2, method according to claim 1 is characterized in that, preserves at least one SSID in advance in wlan client, and SSID described in the steps A is that wlan client is selected from the SSID that self preserves.
3, method according to claim 1 is characterized in that, this method further comprises: wlan client receives the broadcast that has its SSID sign that access point AP sends, and obtains SSID from broadcast;
SSID described in the steps A selects among the SSID of wlan client from broadcast.
4, method according to claim 3 is characterized in that, steps A comprises:
A11, wlan client judge among the SSID in the broadcast whether have the not SSID of selected mistake, if exist, and execution in step A12 then, otherwise process ends;
Select a not SSID of selected mistake among A12, the wlan client SSID from broadcast, and send the access request of carrying this SSID to the wlan network of this SSID correspondence.
5, method according to claim 1 is characterized in that, is provided with in wlan client in advance and preserves at least one SSID and priority thereof, and SSID described in the steps A is select from wlan client according to priority one the not SSID of selected mistake.
6, method according to claim 5, it is characterized in that, before steps A, this method further comprises: wlan client receives the broadcast that has its SSID sign that AP sends, and from broadcast, obtain SSID, wlan client judges whether the SSID that self preserves is identical with SSID in the broadcast
If it is identical, then in steps A, wlan client is at first judged the SSID all selected mistake whether in the broadcast, if, then jump out this flow process, otherwise, wlan client is according to the priority of the SSID that self preserves, select a not SSID of the limit priority of selected mistake among the SSID from broadcast, and then send the access request of carrying this SSID to the corresponding wlan network of this SSID
If inequality, then jump out this flow process.
7, method according to claim 5 is characterized in that, steps A comprises:
A21, wlan client judge among the SSID that self preserves whether have the not SSID of selected mistake, if exist, and execution in step A22 then, otherwise jump out this flow process;
A22, wlan client are selected a not SSID of the limit priority of selected mistake from the SSID that self preserves, and send the access request of carrying this SSID to the wlan network of this SSID correspondence.
8, method according to claim 5 is characterized in that, described SSID and priority thereof are provided with by user or operator.
9, method according to claim 5 is characterized in that, two parts that are provided with operator that described SSID and priority thereof comprise that the user is provided with; Described wlan client is at first selected SSID according to SSID and priority thereof that the user is provided with, and then according among the set SSID and priority thereof of operator, with the user SSID inequality and priority thereof is set, and selects SSID.
10, method according to claim 1 is characterized in that, in step B, described wlan client judges that by the access success message that whether receives AP return in setting-up time this inserts whether success.
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| CN 200410046339 CN1705290A (en) | 2004-06-03 | 2004-06-03 | Method for accessing WLAN |
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| CN 200410046339 CN1705290A (en) | 2004-06-03 | 2004-06-03 | Method for accessing WLAN |
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