CN107969026A - The wireless method and wireless controller AC for throwing screen is realized in a wireless local area network - Google Patents
The wireless method and wireless controller AC for throwing screen is realized in a wireless local area network Download PDFInfo
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- CN107969026A CN107969026A CN201711284804.9A CN201711284804A CN107969026A CN 107969026 A CN107969026 A CN 107969026A CN 201711284804 A CN201711284804 A CN 201711284804A CN 107969026 A CN107969026 A CN 107969026A
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- wireless terminal
- wireless
- access point
- around
- correspondence
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
Abstract
The embodiment of the present invention, which provides a kind of method for realizing wireless throwing screen in a wireless local area network and wireless controller, method, to be included:Obtain the first maximum signal;The first correspondence of first wireless terminal and corresponding first AP are established according to the first maximum signal;Obtain the second maximum signal;Described first, which is established, according to the second maximum signal throws screen equipment and the second correspondence of corresponding 2nd AP;First wireless terminal and the described first the 3rd correspondence for throwing screen equipment are determined according to first correspondence and second correspondence;When first wireless terminal initiates to throw screen service request, corresponding with first wireless terminal first is sent to the associated AP of first wireless terminal according to the 3rd correspondence and throw screen equipment information.Wireless screen technology of throwing is applied in the wireless network environment of certain scale.
Description
Technical field
It is especially a kind of to realize the wireless method and nothing for throwing screen in a wireless local area network the present invention relates to data communication field
Lane controller AC.
Background technology
Wireless image-sound transmits, and is exactly by the content in equipment by video-audio signal by certain transport protocol in simple terms
Shared, for example the picture that mobile phone is shown can be wirelessly incident upon on large screen television with miscellaneous equipment.Current existing skill
Art mainly has three kinds:DLNA, AirPlay, Miracast, these three have bigger difference in application of function, but in equipment
Connection, which is established in thinking, before common part, and the technology of this paper is realized to be established in coupling part mainly around between equipment
Hold, therefore be described herein for AirPlay.
Bonjour is computer, equipment and the protocol name of service on the IP network found automatically in AirPlay in LAN
Claim, its setting network standard of opening zero based on multicast domain name service (multicast DNS), the course of work of Bonjour,
Mainly include:Notice and inquiry:
Notice:Any one supports the equipment for providing service to access in network, is required for the letter of notice the whole network oneself equipment
Whether breath, such as IP address, port, service type, have cipher authentication etc.For example notice oneself and File Transfer Protocol FTP is provided
Service, IP address is 192.168.1.101, and port is 21.
Inquiry:Whether there is oneself desired service in inquiry whole network or whether there are some clothes accessed for oneself
Business, inquires about in network with the presence or absence of conflicting, inquires about the IP address of destination host.Such as B hosts access network, to look in LAN
Ftp server.It is 192.168.1.101 finally to tell that B hosts obtain an IP address, and port numbers are 21 A hosts, also
It is that A hosts provide FTP service, so B hosts have been known that the IP address and port numbers of A hosts.Support setting for Bonjour
It is standby, it is necessary to monitored data bag and refresh list in real time.
But in the network for possess certain scale may there are the following problems, such as in meeting room, in hotel
In room, when wanting using screen service is thrown, since LAN is there are substantial amounts of optional equipment, it is possible that it is such the problem of, than
As mobile phone can by mistake and next door TV establish connect, cause to service unavailable.
To solve the above problems, existing technical solution provides following two solutions:
Scheme one:With reference to the isolation mech isolation test of interchanger so that not chummery Bonjour agreements not intercommunication, with this realize every
From when user terminal connects the Wireless Fidelity Wi-Fi in this upper room, being merely able to find the throwing screen equipment in this room.The program
The defects of be:When Wi-Fi usually provides identical network service at the same time by numerous wireless access point AP equipment, user can not be ensured
Terminal connects the signal in next door by mistake, so that the service in this room can not be used at any time, there is a kind of scheme, different AP on this basis
Equipment provides the network of different names respectively, for example 301 Room Wi-Fi networks are named as 301, and this scheme is big in mobility of people
Very difficult in scene to be applicable in, management service work is also extremely difficult, roams that there is also problem.
Scheme two:Some support that throwing the Wi-Fi signal that screen equipment manufacturer allows TV to release specific name causes user terminal
Go to select specific equipment to connect and use unique throwing screen service, so when specifying Wi-Fi in connection, can only find unique
Equipment, once withdraw from a room, change meeting room, it is necessary to carry out heterogeneous networks switching, it is very cumbersome, while work as Wi-Fi signal mistake
When more, unified management and control can not be done, easily occurs wirelessly experiencing poor, wireless security hidden danger.
To sum up, the problems such as above scheme is there may be using cumbersome, user misoperation, service error.
The content of the invention
In order to solve the above-mentioned technical problem, the embodiment of the present invention adopts the following technical scheme that:
A kind of method for realizing wireless throwing screen in a wireless local area network, including:
First wireless terminal and each wireless access around first wireless terminal in WLAN belonging to acquisition
The first maximum signal between point AP;First wireless terminal and corresponding are established according to the first maximum signal
The first correspondence of one AP;
First throws screen equipment and throws each wireless access around screen equipment described first in WLAN belonging to acquisition
The second maximum signal between point AP;Described first, which is established, according to the second maximum signal throws screen equipment and corresponding the
The second correspondence of two AP;
First wireless terminal and described first is determined according to first correspondence and second correspondence
Throw the 3rd correspondence of screen equipment;
When first wireless terminal initiates to throw screen service request, according to the 3rd correspondence to first nothing
The AP of line terminal association sends the first throwing screen equipment information corresponding with first wireless terminal, in order to described first wireless
Terminal throws screen equipment information according to described first and throws screen equipment foundation connection with described first.
Optionally, first wireless terminal and institute are determined according to first correspondence and second correspondence
The step of three correspondence for stating the first throwing screen equipment, specifically includes:
When the mark and the mark of the 2nd AP in second correspondence of the first AP in first correspondence
When identical, first in the first wireless terminal in first correspondence and second correspondence is thrown into screen equipment pair
It should get up and establish the 3rd correspondence.
Optionally, the first wireless terminal and each nothing around first wireless terminal in WLAN belonging to acquisition
The step of the first maximum signal between line access point AP, specifically includes:
Asked when first wireless terminal sends detection to each wireless access point AP around first wireless terminal
When asking, determine that each wireless access point AP around first wireless terminal receives time of the probe requests thereby and is not above
Threshold value, then obtain belonging to the first wireless terminal and each wireless access point around first wireless terminal in WLAN
The first maximum signal between AP.
Optionally, visited when first wireless terminal is sent to each wireless access point around first wireless terminal
When surveying request, determine that the time that each wireless access point around first wireless terminal receives the probe requests thereby does not have to surpass
Threshold value is crossed, then the first wireless terminal and each wireless access around first wireless terminal in WLAN belonging to acquisition
The step of the first maximum signal between point AP, specifically includes:
When first wireless terminal sends probe requests thereby to each wireless access point around first wireless terminal
When, determine that each wireless access point around first wireless terminal receives time of the probe requests thereby and is not above first
Between signal strength when each wireless access point AP around threshold value and first wireless terminal receives the probe requests thereby
Discrimination when being more than second threshold, then obtain belonging in WLAN the first wireless terminal with first wireless terminal
The first maximum signal between the wireless access point AP of surrounding.
Optionally, the first wireless terminal and each nothing around first wireless terminal in WLAN belonging to acquisition
The step of the first maximum signal between line access point AP, specifically includes:
When first wireless terminal sends probe requests thereby to the wireless access point around first wireless terminal,
Determine each wireless access point around first wireless terminal receive the probe requests thereby time exceed first threshold or
The differentiation between signal strength when each wireless access point AP around first wireless terminal receives the probe requests thereby
When degree is less than second threshold, indicate each wireless access point around first wireless terminal according to the differentiation between signal strength
Spend to first wireless terminal and initiate n active probe, obtain the first wireless terminal during the n active probe and
The first maximum signal between each wireless access point AP around first wireless terminal, wherein, n be more than or equal to
1 natural number.
The another aspect of the embodiment of the present invention, also provides a kind of wireless access for realizing wireless throwing screen in a wireless local area network
Controller AC, including:
First acquisition module, for the first wireless terminal in WLAN belonging to obtaining with first wireless terminal
The first maximum signal between each wireless access point AP of surrounding;
First establishes module, for establishing first wireless terminal and corresponding first according to the first maximum signal
The first correspondence of AP;
Second acquisition module, screen equipment is thrown with throwing screen equipment described first in WLAN belonging to obtaining first
The second maximum signal between each wireless access point AP of surrounding;
Second establishes module, and screen equipment and corresponding second is thrown for establishing described first according to the second maximum signal
The second correspondence of AP;
Determining module, for determining that described first is wireless whole according to first correspondence and second correspondence
End and the described first the 3rd correspondence for throwing screen equipment;
Sending module, for when first wireless terminal initiates to throw screen service request, corresponding to and closing according to the described 3rd
It is to send corresponding with first wireless terminal first to the associated AP of first wireless terminal to throw screen equipment information, so as to
Screen equipment information is thrown according to described first throw screen equipment foundation connection with described first in first wireless terminal.
Optionally, the determining module is specifically used for:
When the mark and the mark of the 2nd AP in second correspondence of the first AP in first correspondence
When identical, first in the first wireless terminal in first correspondence and second correspondence is thrown into screen equipment pair
It should get up and establish the 3rd correspondence.
Optionally, first acquisition module is specifically used for:
Asked when first wireless terminal sends detection to each wireless access point AP around first wireless terminal
When asking, determine that each wireless access point AP around first wireless terminal receives time of the probe requests thereby and is not above
Threshold value, then obtain belonging to the first wireless terminal and each wireless access point around first wireless terminal in WLAN
The first maximum signal between AP.
Optionally, when the first acquisition module is specifically used for:
When first wireless terminal sends probe requests thereby to each wireless access point around first wireless terminal
When, determine that each wireless access point around first wireless terminal receives time of the probe requests thereby and is not above first
Between signal strength when each wireless access point AP around threshold value and first wireless terminal receives the probe requests thereby
Discrimination when being more than second threshold, then obtain belonging in WLAN the first wireless terminal with first wireless terminal
The first maximum signal between the wireless access point AP of surrounding.
Optionally, the first acquisition module is specifically used for:
When first wireless terminal sends probe requests thereby to the wireless access point around first wireless terminal,
Determine each wireless access point around first wireless terminal receive the probe requests thereby time exceed first threshold or
The differentiation between signal strength when each wireless access point AP around first wireless terminal receives the probe requests thereby
When degree is less than second threshold, indicate each wireless access point around first wireless terminal according to the differentiation between signal strength
Spend to first wireless terminal and initiate n active probe, obtain the first wireless terminal during the n active probe and
The first maximum signal between each wireless access point AP around first wireless terminal, wherein, n be more than or equal to
1 natural number.
The beneficial effect of the embodiment of the present invention is:Wireless throwing screen technology is enabled to apply to the wireless network of certain scale
In network environment;Pass through the expense of intelligent decision, as far as possible reduction active probe.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art
Required attached drawing is briefly described, it should be apparent that, drawings in the following description are only some realities of the present invention
Example is applied, for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of method flow diagram of the embodiment of the present invention;
Fig. 2 is a kind of system structure diagram of the embodiment of the present invention;
Fig. 3 is a kind of structure drawing of device of the embodiment of the present invention.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment, belongs to the scope of protection of the invention.
The embodiment of the present invention provides a kind of method for realizing wireless throwing screen in a wireless local area network, as shown in Figure 1, including:
S101, the first wireless terminal and each wireless around first wireless terminal in WLAN belonging to acquisition
The first maximum signal between access point AP;
Wherein, in one embodiment of the present of invention A, as illustrated in fig. 2, it is assumed that have around the first wireless terminal A AP1,
AP2, AP3 totally three wireless access point, signal interaction is carried out in the first wireless terminal A with these three wireless access point respectively,
In interaction, three signal strengths of the first wireless terminal A respectively between these three wireless access point can be obtained, are selected
Maximum one is the first maximum signal in these three signal strengths.
S103, establish first wireless terminal and corresponding first AP according to the first maximum signal first correspond to
Relation;
Wherein, in one embodiment of the present of invention A, when first maximum signal is wireless terminal A and corresponding
During signal strength between AP3, then the correspondence of the first wireless terminal A and AP3 is established as the first correspondence.
S105, in WLAN belonging to acquisition first throw screen equipment with described first throw around screen equipment it is each wirelessly
The second maximum signal between access point AP;
Wherein, in one embodiment of the present of invention A, it is assumed that have AP1, AP2, AP3 totally three around the first throwing screen equipment A
Wireless access point, throws screen equipment A first and carries out signal interaction with these three wireless access point respectively, can in interaction
Screen equipment A three signal strengths between these three wireless access point respectively are thrown to obtain first, select these three signals strong
Maximum one is the second maximum signal in degree.
S107, establishes described first according to the second maximum signal and throws screen equipment and the second correspondence of corresponding 2nd AP
Relation;
Wherein, in one embodiment of the present of invention A, when second maximum signal is the first throwing screen equipment A and right
During signal strength between the AP3 answered, then the correspondence of the first throwing screen equipment A and AP3 is established as the second correspondence.
S109, according to first correspondence and second correspondence determine first wireless terminal with it is described
First throws the 3rd correspondence of screen equipment;
S111, when first wireless terminal initiates to throw screen service request, according to the 3rd correspondence to described
The associated AP of first wireless terminal sends the first throwing screen equipment information corresponding with first wireless terminal, in order to described the
One wireless terminal throws screen equipment information according to described first and throws screen equipment foundation connection with described first.
Optionally, step S109 is specifically included:
When the mark and the mark of the 2nd AP in second correspondence of the first AP in first correspondence
When identical, first in the first wireless terminal in first correspondence and second correspondence is thrown into screen equipment pair
It should get up and establish the 3rd correspondence.
Wherein, in one embodiment of the present of invention A, it is assumed that there is the mark of AP3 in the first correspondence, and second corresponds to
Also there is the mark of AP3 in relation, then by the throwing screen equipment A in the wireless terminal A and the second correspondence in the first correspondence
It is mapped, establishes the 3rd correspondence.
Optionally, step S101 is specifically included:
Asked when first wireless terminal sends detection to each wireless access point AP around first wireless terminal
When asking, determine that each wireless access point AP around first wireless terminal receives time of the probe requests thereby and is not above
Threshold value, then obtain belonging to the first wireless terminal and each wireless access point around first wireless terminal in WLAN
The first maximum signal between AP.
Optionally, visited when first wireless terminal is sent to each wireless access point around first wireless terminal
When surveying request, determine that the time that each wireless access point around first wireless terminal receives the probe requests thereby does not have to surpass
Threshold value is crossed, then the first wireless terminal and each wireless access around first wireless terminal in WLAN belonging to acquisition
The step of the first maximum signal between point AP, specifically includes:
When first wireless terminal sends probe requests thereby to each wireless access point around first wireless terminal
When, determine that each wireless access point around first wireless terminal receives time of the probe requests thereby and is not above first
Between signal strength when each wireless access point AP around threshold value and first wireless terminal receives the probe requests thereby
Discrimination when being more than second threshold, then obtain belonging in WLAN the first wireless terminal with first wireless terminal
The first maximum signal between the wireless access point AP of surrounding.
Optionally, step S101 is specifically included:
When first wireless terminal sends probe requests thereby to the wireless access point around first wireless terminal,
Determine each wireless access point around first wireless terminal receive the probe requests thereby time exceed first threshold or
The differentiation between signal strength when each wireless access point AP around first wireless terminal receives the probe requests thereby
When degree is less than second threshold, indicate each wireless access point around first wireless terminal according to the differentiation between signal strength
Spend to first wireless terminal and initiate n active probe, obtain the first wireless terminal during the n active probe and
The first maximum signal between each wireless access point AP around first wireless terminal, wherein, n be more than or equal to
1 natural number.
Wherein, for discrimination determine, terminal signaling intensity can be received for all AP and be ranked up, to highest with
Secondary high signal difference is judged, when the difference is more than the threshold value of setting, then it is assumed that discrimination is high, is set when the difference is less than
During fixed threshold value, then it is assumed that discrimination is low, and n active probe can be initiated to first wireless terminal when discrimination is low.
In an embodiment of the present invention, the method for initiating active probe can have two kinds:
First, when terminal supports 802.11K agreements, then initiation 802.11K probe messages, obtain different AP between terminal
Signal strength information.
2nd, when terminal does not support 802.11K agreements, according to terminal access situation, the adjacent AP of control terminal initiates terminal
Probe messages, signal strength analysis is carried out to the response message of terminal.
The another aspect of the embodiment of the present invention, also provides a kind of wireless access for realizing wireless throwing screen in a wireless local area network
Controller AC, as shown in figure 3, including:
First acquisition module 201, for the first wireless terminal in WLAN belonging to obtaining with it is wireless described first
The first maximum signal between each wireless access point AP of terminal surrounding;
First establishes module 203, for establishing first wireless terminal and corresponding according to the first maximum signal
The first correspondence of first AP;
Second acquisition module 205, shields for obtaining the first throwing screen equipment in affiliated WLAN with being thrown described first
The second maximum signal between each wireless access point AP around equipment;
Second establishes module 207, and screen equipment and corresponding is thrown for establishing described first according to the second maximum signal
The second correspondence of 2nd AP;
Determining module 209, for determining first nothing according to first correspondence and second correspondence
Line terminal and the described first the 3rd correspondence for throwing screen equipment;
Sending module 211, for when first wireless terminal initiates to throw screen service request, being corresponded to according to the described 3rd
Relation sends corresponding with first wireless terminal first to the associated AP of first wireless terminal and throws screen equipment information, with
Screen equipment information is thrown according to described first throw screen equipment foundation connection with described first easy to first wireless terminal.
Optionally, the determining module specific 209 is used for:
When the mark and the mark of the 2nd AP in second correspondence of the first AP in first correspondence
When identical, first in the first wireless terminal in first correspondence and second correspondence is thrown into screen equipment pair
It should get up and establish the 3rd correspondence.
Optionally, first acquisition module 201 is specifically used for:
Asked when first wireless terminal sends detection to each wireless access point AP around first wireless terminal
When asking, determine that each wireless access point AP around first wireless terminal receives time of the probe requests thereby and is not above
Threshold value, then obtain belonging to the first wireless terminal and each wireless access point around first wireless terminal in WLAN
The first maximum signal between AP.
Optionally, when the first acquisition module 201 is specifically used for:
When first wireless terminal sends probe requests thereby to each wireless access point around first wireless terminal
When, determine that each wireless access point around first wireless terminal receives time of the probe requests thereby and is not above first
Between signal strength when each wireless access point AP around threshold value and first wireless terminal receives the probe requests thereby
Discrimination when being more than second threshold, then obtain belonging in WLAN the first wireless terminal with first wireless terminal
The first maximum signal between the wireless access point AP of surrounding.
Optionally, the first acquisition module 201 is specifically used for:
When first wireless terminal sends probe requests thereby to the wireless access point around first wireless terminal,
Determine each wireless access point around first wireless terminal receive the probe requests thereby time exceed first threshold or
The differentiation between signal strength when each wireless access point AP around first wireless terminal receives the probe requests thereby
When degree is less than second threshold, indicate each wireless access point around first wireless terminal according to the differentiation between signal strength
Spend to first wireless terminal and initiate n active probe, obtain the first wireless terminal during the n active probe and
The first maximum signal between each wireless access point AP around first wireless terminal, wherein, n be more than or equal to
1 natural number.
Wherein, for discrimination determine, terminal signaling intensity can be received for all AP and be ranked up, to highest with
Secondary high signal difference is judged, when the difference is more than the threshold value of setting, then it is assumed that discrimination is high, is set when the difference is less than
During fixed threshold value, then it is assumed that discrimination is low, and n active probe can be initiated to first wireless terminal when discrimination is low.
The beneficial effect of the embodiment of the present invention is:Wireless throwing screen technology is enabled to apply to the wireless network of certain scale
In network environment;Pass through the expense of intelligent decision, as far as possible reduction active probe.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or square frame in journey and/or square frame and flowchart and/or the block diagram.These computer programs can be provided
The processors of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices, which produces, to be used in fact
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or
The instruction performed on other programmable devices is provided and is used for realization in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a square frame or multiple square frames.
Finally it should be noted that:The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that:It still may be used
To modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic;
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical solution spirit and
Scope.
Claims (10)
1. a kind of realize the wireless method for throwing screen in a wireless local area network, it is characterised in that including:
First wireless terminal and each wireless access point AP around first wireless terminal in WLAN belonging to acquisition
Between the first maximum signal;First wireless terminal and corresponding first AP are established according to the first maximum signal
The first correspondence;
First throws screen equipment and throws each wireless access point AP around screen equipment described first in WLAN belonging to acquisition
Between the second maximum signal;Described first, which is established, according to the second maximum signal throws screen equipment and corresponding 2nd AP
The second correspondence;
Determine that first wireless terminal is thrown with described first according to first correspondence and second correspondence to shield
3rd correspondence of equipment;
It is wireless whole to described first according to the 3rd correspondence when first wireless terminal initiates to throw screen service request
Hold associated AP to send corresponding with first wireless terminal first and throw screen equipment information, in order to first wireless terminal
Screen equipment information, which is thrown, according to described first throws screen equipment foundation connection with described first.
2. the method as described in claim 1, it is characterised in that according to first correspondence and second correspondence
The step of three correspondence for determining first wireless terminal and the described first throwing screen equipment, specifically includes:
When the mark of the first AP in first correspondence is identical with the mark of the 2nd AP in second correspondence
When, the first wireless terminal in first correspondence is thrown into corresponding of screen equipment with first in second correspondence
To establish the 3rd correspondence.
3. the method as described in claim 1, it is characterised in that in WLAN belonging to acquisition the first wireless terminal with institute
The step of stating the first maximum signal between each wireless access point AP around the first wireless terminal specifically includes:
When first wireless terminal sends probe requests thereby to each wireless access point AP around first wireless terminal,
Determine that each wireless access point AP around first wireless terminal receives time of the probe requests thereby and is not above threshold value,
Belonging to then obtaining in WLAN the first wireless terminal and each wireless access point AP around first wireless terminal it
Between the first maximum signal.
4. method as claimed in claim 3, it is characterised in that when first wireless terminal is in first wireless terminal
When each wireless access point of surrounding sends probe requests thereby, determine that each wireless access point around first wireless terminal receives
The time of the probe requests thereby is not above threshold value, then obtain belonging in WLAN the first wireless terminal with described first
The step of the first maximum signal between each wireless access point AP around wireless terminal, specifically includes:
When first wireless terminal sends probe requests thereby to each wireless access point around first wireless terminal, really
The time that each wireless access point around fixed first wireless terminal receives the probe requests thereby is not above first threshold
And the area between signal strength of each wireless access point AP around first wireless terminal when receiving the probe requests thereby
Indexing is when being more than second threshold, then the first wireless terminal and around first wireless terminal in WLAN belonging to acquisition
Wireless access point AP between the first maximum signal.
5. the method as described in claim 1, it is characterised in that in WLAN belonging to acquisition the first wireless terminal with institute
The step of stating the first maximum signal between each wireless access point AP around the first wireless terminal specifically includes:
When first wireless terminal sends probe requests thereby to the wireless access point around first wireless terminal, determine
The time that each wireless access point around first wireless terminal receives the probe requests thereby exceedes first threshold or described
The discrimination between signal strength when each wireless access point AP around first wireless terminal receives the probe requests thereby is small
When second threshold, indicate each wireless access point around first wireless terminal according to the discrimination between signal strength to
First wireless terminal initiates n active probe, obtains the first wireless terminal during the n active probe and in institute
The first maximum signal between each wireless access point AP around the first wireless terminal is stated, wherein, n is more than or equal to 1
Natural number.
6. a kind of realize the wireless Radio Access Controller AC for throwing screen in a wireless local area network, it is characterised in that including:
First acquisition module, for the first wireless terminal in WLAN belonging to obtaining and around first wireless terminal
Each wireless access point AP between the first maximum signal;
First establishes module, for establishing first wireless terminal and corresponding first AP according to the first maximum signal
First correspondence;
Second acquisition module, in WLAN belonging to obtaining first throw screen equipment with around the described first throwing screen equipment
Each wireless access point AP between the second maximum signal;
Second establishes module, and screen equipment and corresponding 2nd AP are thrown for establishing described first according to the second maximum signal
Second correspondence;
Determining module, for according to first correspondence and second correspondence determine first wireless terminal with
Described first throws the 3rd correspondence of screen equipment;
Sending module, for when first wireless terminal initiate throw screen service request when, according to the 3rd correspondence to
The associated AP of first wireless terminal sends corresponding with first wireless terminal first and throws screen equipment information, in order to institute
State the first wireless terminal and throw screen equipment information and the described first throwing screen equipment foundation connection according to described first.
7. AC as claimed in claim 6, it is characterised in that the determining module is specifically used for:
When the mark of the first AP in first correspondence is identical with the mark of the 2nd AP in second correspondence
When, the first wireless terminal in first correspondence is thrown into corresponding of screen equipment with first in second correspondence
To establish the 3rd correspondence.
8. AC as claimed in claim 6, it is characterised in that first acquisition module is specifically used for:
When first wireless terminal sends probe requests thereby to each wireless access point AP around first wireless terminal,
Determine that each wireless access point AP around first wireless terminal receives time of the probe requests thereby and is not above threshold value,
Belonging to then obtaining in WLAN the first wireless terminal and each wireless access point AP around first wireless terminal it
Between the first maximum signal.
9. AC as claimed in claim 8, it is characterised in that when the first acquisition module is specifically used for:
When first wireless terminal sends probe requests thereby to each wireless access point around first wireless terminal, really
The time that each wireless access point around fixed first wireless terminal receives the probe requests thereby is not above first threshold
And the area between signal strength of each wireless access point AP around first wireless terminal when receiving the probe requests thereby
Indexing is when being more than second threshold, then the first wireless terminal and around first wireless terminal in WLAN belonging to acquisition
Wireless access point AP between the first maximum signal.
10. AC as claimed in claim 6, it is characterised in that the first acquisition module is specifically used for:
When first wireless terminal sends probe requests thereby to the wireless access point around first wireless terminal, determine
The time that each wireless access point around first wireless terminal receives the probe requests thereby exceedes first threshold or described
The discrimination between signal strength when each wireless access point AP around first wireless terminal receives the probe requests thereby is small
When second threshold, indicate each wireless access point around first wireless terminal according to the discrimination between signal strength to
First wireless terminal initiates n active probe, obtains the first wireless terminal during the n active probe and in institute
The first maximum signal between each wireless access point AP around the first wireless terminal is stated, wherein, n is more than or equal to 1
Natural number.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711284804.9A CN107969026B (en) | 2017-12-07 | 2017-12-07 | Method for realizing wireless screen projection in wireless local area network and wireless controller AC |
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CN110662209A (en) * | 2019-10-11 | 2020-01-07 | 北京奇艺世纪科技有限公司 | Screen projection equipment connection method and device in isolated network |
CN110876115A (en) * | 2018-08-29 | 2020-03-10 | 中国移动通信集团有限公司 | Projection method, terminal, projection equipment and storage medium |
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CN112383500A (en) * | 2020-06-15 | 2021-02-19 | 岭博科技(北京)有限公司 | Method and system for controlling access request related to screen projection equipment |
CN115580602A (en) * | 2021-06-30 | 2023-01-06 | 星络家居云物联科技有限公司 | Streaming media pushing method, mobile terminal and computer readable storage medium |
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