CN106454939B - Control method, control device and wireless local area network access point - Google Patents
Control method, control device and wireless local area network access point Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
- H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/14—Access restriction or access information delivery, e.g. discovery data delivery using user query or user detection
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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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- 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]
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- H04W84/12—WLAN [Wireless Local Area Networks]
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Abstract
The invention discloses a control method for controlling an access point of a wireless local area network. The control method comprises the following steps: the method comprises the steps of controlling a light source to periodically send an identification signal, processing feedback information of at least one user of a wireless local area network to identify the identification signal received by the user, and dividing the at least one user into at least one user set, wherein the identification signal of each user in each user set is the same; the method comprises the steps of obtaining interference information of one user of a user set, obtaining the interference information of other corresponding users of the user set by utilizing the interference information of the user to obtain a data transmission mode of the user set, and carrying out data transmission on the data transmission mode and all users of the user set. The invention also discloses a control device and an access point of the wireless local area network. According to the invention, the sharing of interference information among users in the same light source irradiation range is realized by utilizing the visible light communication positioning capability, the overhead of interference information feedback is reduced, and the information transmission efficiency is improved.
Description
Technical Field
The present invention relates to a control method and a control device, and more particularly, to a control method and a control device for controlling a wireless local area network access point.
Background
With the development of communication technology, wlans have been widely used and densely deployed, and therefore, mutual interference between adjacent wlans may occur, which affects the accuracy of data transmission, and therefore, interference information of the wlans is required to be obtained, and since the transmission rate (including modulation and coding scheme) of the wlans is determined by the signal-to-interference-and-noise ratio (i.e., the ratio of signal power to interference and noise power) of a received signal, the mutual interference affects the transmission rate of the wlans. At present, an access point of a wireless local area network needs to acquire interference information existing in a transmission channel of each user, so that the overhead of non-data transmission of the wireless local area network is high, and the transmission rate of the wireless local area network is influenced.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the present invention needs to provide a control method and a control device for controlling an access point of a wireless lan.
A control method for controlling an access point of a wireless local area network, the access point including a light source, the control method comprising:
controlling the light source to periodically send an identification signal;
processing feedback information for at least one user of the wireless local area network to identify the identification signal received by the user;
dividing the at least one user into at least one user set, wherein the identification signal of each user in each user set is the same;
acquiring interference information of one user of the user set;
acquiring interference information of other users of the corresponding user set by utilizing the interference information of the users to obtain a data transmission mode of the user set; and
and carrying out data transmission with all the users of the user set by utilizing the data transmission mode.
In some embodiments, the users of the set of users include users in a strong interference state or users in a non-strong interference state.
In some embodiments, the decision criteria for the strong interference state includes that the access point did not receive feedback information for said one of the users of the set of users.
In some embodiments, the interference information in the non-strong interference state includes:
average interference power over various time scales;
probability of occurrence of an interfering signal;
a probability distribution of the interfering signal;
transition probabilities of the interference signals between different power levels; and
an average interference power and a transmit interference power of a stronger interferer in the vicinity of the one of the set of users.
In some embodiments, the obtaining interference information of other users of the corresponding user set by using the interference information of the user to obtain the data transmission mode of the user set includes the following sub-steps:
predicting interference information of other users of the user set by using the interference information of the user;
sending the interference information to other users of the user set;
determining whether all of the users of the set of users are in the strong interference state;
if all the users are in the non-strong interference state, receiving the data transmission modes fed back by all the users in the non-strong interference state; and if all the users are in the strong interference state, suspending the communication with all the users in the strong interference state.
In some embodiments, said transmitting said interference information to other said users of said set of users comprises transmitting said interference information using visible light of said light source.
In some embodiments, the receiving the data transmission mode fed back by all the users in the non-strong interference state includes feeding back the data transmission mode by using a wireless local area network.
In certain embodiments, the control method further comprises the steps of:
and for all the users of the user set in the non-strong interference state, judging whether the interference states of all the users change, if the interference states of all the users change, returning to the step to acquire the interference information of one user of the user set, and if the interference states of all the users do not change, returning to the step to perform data transmission with all the users of the user set by using the data transmission mode.
In certain embodiments, the control method further comprises the steps of:
and for all the users in the user set in the strong interference state, judging whether the strong interference state of all the users is finished, if the strong interference state of all the users is finished, returning to the step, if all the users are in the non-strong interference state, receiving the data transmission mode fed back by all the users in the non-strong interference state, and if the strong interference state of all the users is not finished, returning to the step, if all the users are in the strong interference state, pausing the communication with all the users in the strong interference state.
In some embodiments, for interference information fed back by the user of the multiple user sets, if the interference information is different among the multiple user sets, all the users of the user set with lower interference probability in the interference information are preferentially selected for data transmission.
A control device is used for controlling an access point of a wireless local area network, the access point comprises a light source, and the control device comprises a control module, a first processing module, a dividing module, a first obtaining module, a second obtaining module and a transmission module. The control module is used for controlling the light source to periodically send an identification signal, the first processing module is used for processing feedback information of at least one user of the wireless local area network to identify the identification signal received by the user, the dividing module is configured to divide the at least one user into at least one user set, the identification signal of each user in each user set is the same, the first obtaining module is configured to obtain interference information of one of the users of the set of users, the second obtaining module is configured to obtain interference information of other users of the corresponding user set by using the interference information of the user to obtain a data transmission mode of the user set, the transmission module is used for performing data transmission with all the users of the user set by using the data transmission mode.
In some embodiments, the second obtaining module includes a predicting module, a sending module, a first determining module, a second processing module, and a third processing module. The prediction module is configured to predict interference information of other users of the user set by using the interference information of the user, the sending module is configured to send the interference information to the other users of the user set, the first determining module is configured to determine whether all the users of the user set are in the strong interference state, the second processing module is configured to process the data transmission mode fed back by all the users in the non-strong interference state when all the users are in the non-strong interference state, and the third processing module is configured to process that communication between all the users in the strong interference state is suspended when all the users are in the strong interference state.
In certain embodiments, the control module further comprises a second determination module. The second judging module is configured to judge whether interference states of all the users of the user set in the non-strong interference state change, if the interference states of all the users change, return to the step to acquire interference information of one user of the user set, and if the interference states of all the users do not change, return to the step to perform data transmission with all the users of the user set by using the data transmission method.
In certain embodiments, the control device further comprises a third determining module. The third determining module is configured to determine whether the strong interference state of all the users in the set of users in the strong interference state is over, if the strong interference state of all the users is over, return to the step, if all the users are in the non-strong interference state, receive the data transmission manner fed back by all the users in the non-strong interference state, and if the strong interference state of all the users is not over, return to the step, if all the users are in the strong interference state, suspend communication with all the users in the strong interference state.
An access point of a wireless local area network, the wireless local area network comprising the control device.
In some embodiments, an access point of the wireless local area network includes a plurality of light sources.
The control method, the control device and the wireless local area network access point of the embodiment of the invention utilize the communication positioning capability of visible light to realize the sharing of interference information among all users in the same light source irradiation range, reduce the overhead of interference information feedback, greatly avoid invalid information transmission between users subjected to strong interference and improve the transmission efficiency of the wireless local area network.
Drawings
Fig. 1 is a flowchart illustrating a control method according to an embodiment of the present invention.
Fig. 2 is a functional block diagram of a control device according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of the operation of an embodiment of the present invention.
Fig. 4 is another flow chart of the control method according to the embodiment of the invention.
Fig. 5 is a schematic diagram of another functional block of the control device according to the embodiment of the present invention.
Fig. 6 is a schematic diagram of another functional block of the control device according to the embodiment of the present invention.
Description of the main element symbols:
the access point comprises an access point 100, a control device 10, a control module 11, a first processing module 12, a dividing module 13, a first obtaining module 14, a second obtaining module 15, a predicting module 151, a sending module 152, a first judging module 153, a second processing module 154, a third processing module 155, a transmitting module 16, a third judging module 17 and a fourth judging module 18.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout.
The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Referring to fig. 1, a control method according to an embodiment of the present invention is used for controlling an access point of a wireless local area network, and the control method includes the following steps:
s11: controlling the light source to periodically send an identification signal;
s12: processing feedback information for at least one user of the wireless local area network to identify the identification signal received by the user;
s13: dividing the at least one user into at least one user set, wherein the identification signal of each user in each user set is the same;
s14: acquiring interference information of one user of the user set;
s15: acquiring interference information of other users of the corresponding user set by utilizing the interference information of the users to obtain a data transmission mode of the user set; and
s16: and carrying out data transmission with all the users of the user set by utilizing the data transmission mode.
Referring to fig. 2 to 3, an access point of a wireless lan according to an embodiment of the present invention includes a control device 10. The control method according to the embodiment of the present invention may be implemented by the control device 10 according to the embodiment of the present invention, and used to control the wireless lan access point 100.
The control device 10 includes a control module 11, a first processing module 12, a dividing module 13, a first obtaining module 14, a second obtaining module 15, and a transmission module 16. The control module 11 is configured to control the light source to periodically send an identification signal, the first processing module 12 is configured to process feedback information of at least one user of the wireless local area network to identify the identification signal received by the user, the dividing module 13 is configured to divide the at least one user into at least one user set, the identification signal of each user in each user set is the same, the first obtaining module 14 is configured to obtain interference information of one user of the user sets, the second obtaining module 15 is configured to obtain interference information of other users of the corresponding user set by using the interference information of the user to obtain a data transmission mode of the user set, and the transmission module 16 is configured to perform data transmission with all the users of the user set by using the data transmission mode.
That is, step S11 may be implemented by the control module 11, step S12 may be implemented by the first processing module 12, step S13 may be implemented by the dividing module 13, step S14 may be implemented by the first acquiring module 14, step S15 may be implemented by the second acquiring module 15, and step S16 may be implemented by the transmitting module 16.
The control method of the invention utilizes visible light communication as the supplement of the downlink transmission of the existing wireless local area network. In the downlink direction, data may be transmitted by the wireless local area network and visible light communication, respectively, according to a schedule, and aggregated at the access point 100. Since the position of the light source, i.e., the LED lamp, for data transmission is fixed, and the user must be located near the relevant LED lamp for visible light communication transmission, the geographical position of the user can be obtained by determining which LED lamp the user communicates with. The wireless local area network communication method has similarity with the wireless local area network channels experienced by users belonging to the same LED lamp illumination range, so that the access point can estimate the interference information of other users belonging to the same illumination range according to the interference information only by obtaining the interference information fed back by a certain user. Therefore, on one hand, feedback of interference information frequently performed between the access point 100 and each user in the conventional wireless communication method can be avoided, overhead of interference information feedback is reduced, and data transmission efficiency is improved, and on the other hand, invalid data transmission performed by the user in a strong interference state can be greatly avoided. In addition, the visible light communication has the characteristics of low energy consumption, environmental protection, high transmission rate, good safety and the like, and the auxiliary transmission of the downlink communication by utilizing the visible light is favorable for improving the performance of the wireless local area network communication system.
In some embodiments, the users in the user set include users in a strong interference state or users in a non-strong interference state.
When the user is in a strong interference state, the access point 100 will have a large interference in the communication with the user due to the poor channel quality, and thus the access point will suspend the data transmission with the user. If the user is in a non-strong interference state, the access point can realize the communication with each user by adopting a reasonable data transmission mode according to the current interference information of the user.
In some embodiments, the decision criteria for a high interference state includes that the access point does not receive feedback information for a user of the set of users.
Some communication protocols are used for communication between the user and the access point. In the embodiment of the present invention, by using the RTS/CTS protocol, when the access point 100 sends the request to send signal RTS to the user, if the user feeds back the clear to send signal CTS to the access point 100, indicating that the user is ready, the user may perform data transmission with the access point 100. If the user does not feed back the CTS clear to send to the ap 100, it indicates that the user is in a strong interference state, and cannot perform reliable data transmission with the ap 100.
In some embodiments, the interference information in the non-strong interference state includes an average interference power on each of different time scales, a probability of occurrence of an interference signal, a probability distribution of an interference signal, a transition probability of an interference signal between different power levels, an average interference power and a transmission interference power of a stronger interference source in the vicinity of the one of the users in the user set.
When a user performs data transmission with the access point 100 of the wireless lan, the interference of the channel mainly includes the following parts: path loss caused by building material type, building internal structure, window type and the like, thermal noise existing in the wireless local area network access point 100, namely a receiver, cascade system noise caused by cascading of components such as an antenna, an amplifier, a filter, a mixer and the like which form the wireless local area network receiver, co-channel interference and the like. The user acquires the interference information of the channel, including the average interference power, the probability of occurrence of the interference signal, the probability distribution of the interference signal, and the like on different time scales, and is helpful for the access point 100 to reasonably schedule the data transmission mode with the user so as to realize reliable data transmission.
Referring to fig. 4, step S15 of the control method according to the embodiment of the present invention includes the following sub-steps:
step S151: predicting interference information of other users of the user set by using the interference information of the user;
step S152: sending the interference information to other users of the user set;
step S153: determining whether all of the users of the set of users are in the strong interference state;
step S154: if all the users are in the non-strong interference state, receiving the data transmission modes fed back by all the users in the non-strong interference state;
step S155: if all the users are in the strong interference state, suspending the communication with all the users in the strong interference state;
referring to fig. 5, in some embodiments, the second obtaining module 15 includes a predicting module 151, a sending module 152, a first determining module 153, a second processing module 154, and a third processing module 155. The predicting module 151 is configured to predict interference information of other users of the user set by using the interference information of the user, the sending module 152 is configured to send the interference information to the other users of the user set, the first determining module 153 is configured to determine whether all the users of the user set are in the strong interference state, the second processing module 154 is configured to process the data transmission manner fed back by all the users in the non-strong interference state when all the users are in the non-strong interference state, and the third processing module 155 is configured to process that when all the users are in the strong interference state, the communication with all the users in the strong interference state is suspended.
That is, step S151 may be implemented by the prediction module 151, step S152 may be implemented by the transmission module 152, step S153 may be implemented by the first judgment module 153, step S154 may be implemented by the first processing module S154, and step S155 may be implemented by the third processing module 155.
If all users in the user set have the same identification signal, which indicates that all users in the user set are within the illumination range of the same light source, the geographic positions of all users in the user set are similar, and therefore, interference information of channels used for data transmission between each user and the access point 100 has similarity, and after the access point acquires interference information fed back by a certain user in the associated user set, the interference information of other users in the user set can be estimated by using the fed-back interference information. When the users in the user set are in a strong interference state, the access point 100 needs to suspend the communication with the user set due to poor channel quality, and if the users in the user set are in a non-strong interference state, the access point 100 may perform data transmission according to a data transmission mode fed back by the users in the user set. Therefore, on one hand, invalid data transmission between the access point 100 and the user in the strong interference state can be avoided, and on the other hand, interference information of other users in the user set is obtained by using interference information fed back by one user in the set, so that the overhead of non-data transmission of the wireless local area network can be reduced, and the transmission efficiency of the wireless local area network is improved.
In some embodiments, sending the interference information to other users in the set of users includes sending the interference information using visible light of a light source.
The visible light communication has the characteristics of low energy consumption, environmental protection, high transmission rate, good safety and the like, and the transmission of the interference information by using the visible light is favorable for improving the performance of the wireless local area network communication system.
In some embodiments, receiving the data transmission mode fed back by all users in the non-strong interference state comprises feeding back the data transmission mode by using the wireless local area network.
In the uplink transmission direction, since the user cannot provide a light source with sufficient brightness to perform data transmission by using visible light, the user needs to use the wireless lan to feed back the data transmission method.
Referring to fig. 4, the control method according to the embodiment of the present invention further includes the steps of:
s17: for all the users in the user set in the non-strong interference state, judging whether the interference states of all the users change; if the interference status of all the users changes, returning to step S14 to obtain the interference information of one user of the user set, and if the interference status of all the users does not change, returning to step S16 to perform data transmission with all the users of the user set by using the data transmission method.
Referring to fig. 6, the control device 10 further includes a second determining module 17. The second determining module 17 is configured to determine whether the interference states of all the users of the user set in the non-strong interference state change, if the interference states of all the users change, return to the step to obtain the interference information of one user of the user set, and if the interference states of all the users do not change, return to the step to perform data transmission with all the users of the user set by using the data transmission method.
That is, step S17 may be implemented by the second determination module 17.
Therefore, when the interference state of the user in the user set changes, the access point 100 needs to update the interference information in time and feed back new interference information to the access point 100, and the access point 100 obtains the interference information of other users in the user set according to the new interference information and performs communication in a reasonable data transmission mode according to the interference information, so that the accuracy of data transmission can be ensured.
Referring to fig. 4, the control method according to the embodiment of the present invention further includes the steps of:
s18: and for all the users in the user set in the strong interference state, judging whether the strong interference state of all the users is finished, if the strong interference state of all the users is finished, returning to the step, if all the users are in the non-strong interference state, receiving the data transmission mode fed back by all the users in the non-strong interference state, and if the strong interference state of all the users is not finished, returning to the step, if all the users are in the strong interference state, pausing the communication with all the users in the strong interference state.
Referring to fig. 6, the control device 10 includes a third determining module 18. The third determining module 18 is configured to determine whether the strong interference state of all the users in the set of users in the strong interference state is finished, if the strong interference state of all the users is finished, return to step S154, if all the users are in the non-strong interference state, receive the data transmission manner fed back by all the users in the non-strong interference state, and if the strong interference state of all the users is not finished, return to step S155, if all the users are in the strong interference state, suspend communication with all the users in the strong interference state.
That is, step S18 may be implemented by the third determination module 18.
In this way, when the strong interference state of all users in the user set in the strong interference state is ended, the users in the user set can timely feed back the available data transmission mode to the access point 100, thereby implementing communication with the access point 100.
Referring to fig. 3, an access point of a wireless lan according to an embodiment of the present invention includes a plurality of light sources.
A plurality of light sources may be included within the range that an ap of a wlan can radiate. The plurality of light sources constitute a user set. The interference information of other users in the user set is obtained by using the interference information of one user in the user set corresponding to each light source, so that the feedback overhead of non-data transmission is greatly reduced.
In some embodiments, for interference information fed back by the user of the multiple user sets, if the interference information is different among the multiple user sets, all the users of the user set with lower interference probability in the interference information are preferentially selected for data transmission.
Because the channel with lower interference probability in the interference information has better quality, the user set with lower interference probability in the interference information is preferentially selected for communication, so that the correctness of data transmission can be ensured.
In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (15)
1. A control method for controlling an access point of a wireless local area network, the access point including a light source, the control method comprising:
controlling the light source to periodically send an identification signal;
processing feedback information for at least one user of the wireless local area network to identify the identification signal received by the user;
dividing the at least one user into at least one user set, wherein the identification signal of each user in each user set is the same, and the users of the user set comprise users in a strong interference state or users in a non-strong interference state;
acquiring interference information of one user of the user set;
acquiring interference information of other users of the corresponding user set by utilizing the interference information of the users to obtain a data transmission mode of the user set; and
and carrying out data transmission with all the users of the user set by utilizing the data transmission mode.
2. The method of claim 1, wherein the decision criteria for the strong interference state includes that the access point did not receive feedback information for said one of the users of the set of users.
3. The control method of claim 1, wherein the interference information in the non-strong interference state comprises:
average interference power over various time scales;
probability of occurrence of an interfering signal;
a probability distribution of the interfering signal;
transition probabilities of the interference signals between different power levels; and
an average interference power and a transmit interference power of a stronger interferer in the vicinity of the one of the set of users.
4. The control method according to claim 1, wherein the obtaining interference information of other users of the corresponding user set by using the interference information of the user to obtain the data transmission mode of the user set comprises the following sub-steps:
predicting interference information of other users of the user set by using the interference information of the user;
sending the interference information to other users of the user set;
determining whether all of the users of the set of users are in the strong interference state;
if all the users are in the non-strong interference state, receiving the data transmission modes fed back by all the users in the non-strong interference state;
and if all the users are in the strong interference state, suspending the communication with all the users in the strong interference state.
5. The control method of claim 4, wherein said sending the interference information to other said users of the set of users comprises sending the interference information using visible light of the light source.
6. The method of claim 4, wherein the receiving the data transmission mode fed back by all the users in the non-strong interference state comprises feeding back the data transmission mode by using a wireless local area network.
7. The control method according to claim 1, characterized by further comprising the steps of:
and for all the users of the user set in the non-strong interference state, judging whether the interference states of all the users change, if the interference states of all the users change, returning to the step to acquire the interference information of one user of the user set, and if the interference states of all the users do not change, returning to the step to perform data transmission with all the users of the user set by using the data transmission mode.
8. The control method according to claim 4, characterized by further comprising the steps of:
and for all the users in the user set in the strong interference state, judging whether the strong interference state of all the users is finished, if the strong interference state of all the users is finished, returning to the step, if all the users are in the non-strong interference state, receiving the data transmission mode fed back by all the users in the non-strong interference state, and if the strong interference state of all the users is not finished, returning to the step, if all the users are in the strong interference state, pausing the communication with all the users in the strong interference state.
9. The method according to claim 1, wherein for the interference information fed back by said one of the plurality of user sets, if the interference information is different among the plurality of user sets, all the users of the user set with lower interference probability in the interference information are preferentially selected for data transmission.
10. A control apparatus for controlling an access point of a wireless local area network, the access point including a light source, the control apparatus comprising:
the control module is used for controlling the light source to periodically send an identification signal;
a first processing module, configured to process feedback information of at least one user of the wireless local area network to identify the identification signal received by the user;
a dividing module, configured to divide the at least one user into at least one user set, where the identification signal of each user in each user set is the same, and users in the user set include users in a strong interference state or users in a non-strong interference state;
a first obtaining module, configured to obtain interference information of one user of the user set;
a second obtaining module, configured to obtain, by using the interference information of the user, interference information of other users of the corresponding user set to obtain a data transmission mode of the user set; and
and the transmission module is used for carrying out data transmission with all the users of the user set by utilizing the data transmission mode.
11. The control apparatus as claimed in claim 10, wherein said second obtaining module comprises:
a prediction module for predicting interference information of other said users of said set of users using interference information of said one said user;
a sending module, configured to send the interference information to other users of the user set;
a first determining module, configured to determine whether all the users of the user set are in the strong interference state;
a second processing module, configured to process the data transmission manner fed back by all the users in the non-strong interference state when all the users are in the non-strong interference state;
a third processing module, configured to process, when all the users are in the strong interference state, suspending communication with all the users in the strong interference state.
12. The control device according to claim 10, characterized in that the control device further comprises:
a second determining module, configured to determine whether interference states of all the users of the user set in the non-strong interference state change, if the interference states of all the users change, return to the step of obtaining interference information of one user of the user set, and if the interference states of all the users do not change, return to the step of performing data transmission with all the users of the user set by using the data transmission manner.
13. The control device according to claim 11, characterized in that the control device further comprises:
a third determining module, configured to determine whether the strong interference state of all the users in the set of users in the strong interference state is over, if the strong interference state of all the users is over, return to the step to receive the data transmission manner fed back by all the users in the non-strong interference state when all the users are in the non-strong interference state, and if the strong interference state of all the users is not over, return to the step to suspend communication with all the users in the strong interference state when all the users are in the strong interference state.
14. An access point of a wireless local area network, characterized in that the access point of the wireless local area network comprises a control device according to any one of claims 10-13.
15. The access point of a wireless local area network of claim 14, wherein the access point of the wireless local area network comprises a plurality of light sources.
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