CN108900248A - The distribution method and device of access point in a kind of visible light wireless communication system - Google Patents
The distribution method and device of access point in a kind of visible light wireless communication system Download PDFInfo
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- CN108900248A CN108900248A CN201810682181.9A CN201810682181A CN108900248A CN 108900248 A CN108900248 A CN 108900248A CN 201810682181 A CN201810682181 A CN 201810682181A CN 108900248 A CN108900248 A CN 108900248A
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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
- 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
- H04B10/1149—Arrangements for indoor wireless networking of information
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Abstract
The embodiment of the present invention provides the distribution method and device of access point in a kind of visible light wireless communication system, is related to visible light wireless communication field, and user is enabled to not cause the network terminal and time delay because of switching access point when moving.This method includes：Obtain the coverage area of access point；Determine in the coverage area of access point with the non-overlapping part of the coverage area of other access points be independent coverage area, determine in the coverage area of access point with the part of the overlapped coverage of other access points be mix coverage area；Its corresponding access point is transferred to be responsible for the total data flow of independent coverage area；Its total data flow is distributed into the corresponding access point of blend range according to the signal attribute parameter of the corresponding access point of mixing coverage area at various locations；Access point allocation table is formulated according to the allocation result of all coverage areas；The total data flow of user terminal is allocated according to the location information of user terminal and access point allocation table.
Description
Technical field
The present invention relates to a kind of distribution of access point in visible light wireless communication field more particularly to visible light wireless communication
Method and apparatus.
Background technique
Present wireless telecom equipment limitation is very strong, such as mobile phone, need many base stations help its enhance signal into
Row connection, and energy consumption is serious, inefficiency.Therefore technical staff develops new wireless communication technique i.e. visible light channel radio
Letter technology, it is seen that light wireless communication technology is the high speed light and shade being invisible to the naked eye using sendings such as fluorescent lamp or light emitting diodes
Flash signal (similar computer in 010101) transmits information, and the wire device of high-speed Internet is connected to illumination dress
It sets, insertion attaching plug can be used.The network signal that the system being made into using this technology is generated can cover indoor lamp
The range that light reaches has extensive development prospect.With WLAN used at present (WLAN, Wireless Local
Area Networks) it compares, " visible light wireless communication (LiFi, Light Fidelity) " technology can be set using room lighting
Standby that WLAN base station is replaced to emit signal, communication speed is up to per second tens of million to hundreds of million, and future transmission speed is also
It can exceed that fiber optic communication.Using computer and personal digital assistant device dedicated, that be capable of sending and receiving semiotic function, as long as indoors
The place that light shines, so that it may download and upload for a long time the data such as high-resolution portrait and animation.The system also has safety
The high feature of property.Light is covered with curtain, information would not leak to outdoor, while will not influence to communicate using multiple computers
Speed.Due to not using airwave communication, the departments such as hospital sensitive to electromagnetic signal can freely use the system.
But the network environment of existing LiFi system is made of multiple LiFi access points, each LiFi access point
Coverage area be it is fixed, from the coverage area of a LiFi access point be moved to another LiFi when user carries mobile terminal
When the coverage area of access point, the mobile terminal of user needs to switch the LiFi access point of itself access network, and this switches
Process necessarily will cause the interruption and delay of network, if user, using mobile terminal migration indoors, the LiFi of user is used
Experience is just more bad.
Summary of the invention
The embodiment of the present invention provides the distribution method and device of access point in a kind of visible light wireless communication system, can
So that user will not cause the network terminal and time delay because of switching access point when moving.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that：
In a first aspect, a kind of distribution method of access point in visible light wireless communication system is provided, including：Obtain visible light
The coverage area of at least one access point in wireless communication system；
It will be non-overlapping with the coverage area of remaining access point in the coverage area of access point any at least one access point
Part be determined as independent coverage area, by the coverage area of access point any at least one access point with remaining access point
Overlapped coverage part be determined as mix coverage area；
The total data flow of independent coverage area is distributed to the corresponding access point of independent coverage area to be responsible for；
Obtain the signal attribute parameter of the corresponding access point of mixing coverage area each position in mixing coverage area；
It will according to the signal attribute parameter of the corresponding access point of mixing coverage area each position in mixing coverage area
The total data flow of mixing coverage area distributes to the corresponding access point of blend range；
According to the access point allocation result of the total data flow of all independent coverage areas and all mixing coverage areas
The access point allocation result of total data flow formulates access point allocation table；
Obtain the location information of user terminal and according to the location information of user terminal and access point allocation table by user
The total data flow of terminal is allocated.
In technical solution provided by the above embodiment, at least one access point in visible light wireless communication system is obtained first
Coverage area, all covering models of light wireless communication system will be seen that according to the overlapping situation of the coverage area of all access points
It encloses and classifies, wherein only transferring to the access point to bear by all data traffics of the independent coverage area of access point covering
Duty, the mixing coverage area covered by multiple access points are then mixing each position in coverage area according to its corresponding access point
The signal attribute parameter data traffic total to its be responsible for access point and be allocated；Then according to the number of aforementioned all kinds of coverage areas
It is responsible for access point distribution condition access point allocation table according to flow；Finally determined according to user terminal location and access point allocation table
The access point allocation plan of user terminal.So the technical solution can be counted when user terminal is in independent coverage area
It is responsible for entirely by a corresponding access point according to flow；When its be moved to mixing coverage area when then its data traffic by corresponding more
A access point is responsible for, and so, user terminal is in visible light wireless communication system if be moved to from independent coverage area
It can then increase while retaining the access point of data traffic of original responsible user terminal when adjacent mixing coverage area
Other access points in the corresponding access point of mixing coverage area are responsible for the data traffic of user terminal；When user terminal is from mixed
When closing coverage area and being moved to other adjacent independent coverage areas, it is responsible for the access point of the data traffic of user terminal by one
Become multiple, but because the independent covering model for necessarily having this adjacent in the access point of the data traffic of original responsible user terminal
Corresponding access point is enclosed, also allows for summarizing in handoff procedure and not will cause the interruption and time delay of user terminal data flow, is mentioned
The high usage experience of user.
Optionally, it is seen that light wireless communication system is indoor visible light wireless communication system, and visible light wireless communication system
The corresponding interior space of visible light wireless communication system is completely covered in the coverage area of all access points in system.
Optionally, according to the signal attribute of the corresponding access point of mixing coverage area each position in mixing coverage area
The total data flow for mixing coverage area is distributed to the corresponding access point of blend range by parameter：
According to the signal of the corresponding access point each position in mixing coverage area in position each in mixing coverage area
Property parameters will mix coverage area and be classified as different deviation mixing coverage areas；
It is being biased to mix the signal category of each position in coverage area according to the corresponding access point of mixing coverage area is biased to
Property parameter, be arranged according to preset rules and be biased to the responsible data traffic of the corresponding each access point of mixing coverage area to account for deviation mixed
Close the accounting of the total data flow of coverage area.
Optionally, according to the location information of user terminal and access point allocation table by the total data flow of user terminal into
Row distributes：
According to the location information of user terminal determine user terminal belonging to target coverage area, target coverage area be appoint
One independent coverage area or any mixing coverage area；
The target coverage area according to belonging to user terminal and access point allocation table are by the total data flow of user terminal
It is allocated.
Preferably, signal attribute parameter includes signal strength.
Optionally, it is covered according to the access point allocation result and all mixing of the total data flows of all independent coverage areas
The access point allocation result of the total data flow of lid range formulates access point allocation table：
Judge whether the working condition of at least one access point generates change；
When the working condition for determining at least one access point generates change, reacquire in visible light wireless communication system
The coverage area of at least one access point；
When the working condition for determining at least one access point does not generate change, the location information and root of user terminal are obtained
Target coverage area belonging to user terminal is determined according to the location information of user terminal.
Optionally, working condition changes including at least following any one or more：Quantity change, any access of access point
The coverage area of point changes and the replacement of any access point.
Second aspect provides a kind of distributor of access point in visible light wireless communication system, including：Acquisition module,
Categorization module, distribution module and processing module；
Module is obtained, for obtaining the coverage area of at least one access point in visible light wireless communication system；
Categorization module, for will acquire module acquisition at least one access point in any access point coverage area in
The non-overlapping part of the coverage area of remaining access point is determined as independent coverage area, will acquire at least one that module obtains and connects
It is determined as mixing covering model with the part of the overlapped coverage of remaining access point in the coverage area of any access point in access point
It encloses；
Distribution module, the total data flow of the independent coverage area for determining categorization module distribute to independent covering model
Corresponding access point is enclosed to be responsible for；
It obtains module and is also used to obtain the determining corresponding access point of mixing coverage area of categorization module in mixing covering model
Enclose the signal attribute parameter of interior each position；
Distribution module is also used to cover model in mixing according to the corresponding access point of mixing coverage area for obtaining module acquisition
The total data flow for mixing coverage area is distributed to the corresponding access of blend range by the signal attribute parameter for enclosing interior each position
Point；
Processing module, for distributing knot according to access point of the distribution module to the total data flow of all independent coverage areas
The access point allocation result of the total data flow of fruit and all mixing coverage areas formulates access point allocation table；
Obtain the location information that module is also used to obtain user terminal；
Processing module is also used to be connect according to what the location information and processing module that obtain the user terminal that module obtains were formulated
The total data flow of user terminal is allocated by access point allocation table.
Optionally, it is seen that light wireless communication system is indoor visible light wireless communication system, and visible light wireless communication system
The corresponding interior space of visible light wireless communication system is completely covered in the coverage area of all access points in system.
Optionally, distribution module is specifically used for:According to obtaining, each position in the mixing coverage area that module obtains is corresponding
Access point mixing coverage area in each position signal attribute parameter, will mixing coverage area be classified as different deviations
Mix coverage area；
It is being biased to mix the signal category of each position in coverage area according to the corresponding access point of mixing coverage area is biased to
Property parameter, be arranged according to preset rules and be biased to the responsible data traffic of the corresponding each access point of mixing coverage area to account for deviation mixed
Close the accounting of the total data flow of coverage area.
Optionally, processing module is specifically used for：
User terminal is determined according to the location information of user terminal and the classification results of categorization module that obtain module acquisition
Affiliated target coverage area, target coverage area are any independent coverage area or any mixing coverage area；
The target coverage area according to belonging to user terminal and access point allocation table are by the total data flow of user terminal
It is allocated.
Preferably, signal attribute parameter includes signal strength.
Optionally, which further includes judgment module；Judgment module, for formulating access point allocation table in processing module
Judge whether the working condition of at least one access point generates change afterwards；
When judgment module determines the working condition generation change of at least one access point, module is obtained for reacquiring
It can be seen that in light wireless communication system at least one access point coverage area；
When judgment module determines that the working condition of at least one access point does not generate change, obtains module and used for obtaining
The location information of family terminal and according to the location information of user terminal determine user terminal belonging to target coverage area.
Optionally, working condition changes including at least following any one or more：Quantity change, any access of access point
The coverage area of point changes and the replacement of any access point.
The distribution method and device of access point in visible light wireless communication system provided in an embodiment of the present invention, because of the party
Method includes：Obtain the coverage area of at least one access point in visible light wireless communication system；It will appoint at least one access point
The part non-overlapping with the coverage area of remaining access point is determined as independent coverage area in the coverage area of one access point, near
Part in a few access point in the coverage area of any access point with the overlapped coverage of remaining access point is determined as mixing
Close coverage area；The total data flow of independent coverage area is distributed to the corresponding access point of independent coverage area to be responsible for；It obtains
Mix the signal attribute parameter of the corresponding access point of coverage area each position in mixing coverage area；Model is covered according to mixing
Enclose the total data stream that corresponding access point signal attribute parameter of each position in mixing coverage area will mix coverage area
Amount distributes to the corresponding access point of blend range；According to the access point allocation result of the total data flow of all independent coverage areas
Access point allocation table is formulated with the access point allocation result of the total data flow of all mixing coverage areas；Obtain user terminal
Location information and the total data flow of user terminal is carried out according to the location information of user terminal and access point allocation table
Distribution.So technical solution provided in an embodiment of the present invention can be when user terminal be in independent coverage area by its data flow
Amount is responsible for by a corresponding access point entirely；When it is moved to mixing coverage area, then its data traffic multiple is connect by corresponding
Access point is responsible for, and so, user terminal is in visible light wireless communication system if be moved to from independent coverage area adjacent
Mixing coverage area when then it is mixed to increase this while retaining the access point of data traffic of original responsible user terminal
Close the data traffic that other access points in the corresponding access point of coverage area are responsible for user terminal；When user terminal is covered from mixing
When lid range is moved to other adjacent independent coverage areas, the access point for being responsible for the data traffic of user terminal is become from one
It is multiple, but because the independent coverage area pair for necessarily having this adjacent in the access point of the data traffic of original responsible user terminal
The access point answered, also allows for summarizing in handoff procedure and not will cause the interruption and time delay of user terminal data flow, improves
The usage experience of user.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is that the distribution method process of access point in a kind of visible light wireless communication system provided in an embodiment of the present invention is shown
It is intended to；
Fig. 2 is the distribution method process of access point in the visible light wireless communication system of another kind provided in an embodiment of the present invention
Schematic diagram；
Fig. 3 is indoor visible light wireless communication system topology structure chart provided in an embodiment of the present invention；
Fig. 4 is that the distributor structure of access point in a kind of visible light wireless communication system provided in an embodiment of the present invention is shown
It is intended to.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It should be noted that in the embodiment of the present invention, " illustrative " or " such as " etc. words make example, example for indicating
Card or explanation.Be described as in the embodiment of the present invention " illustrative " or " such as " any embodiment or design scheme do not answer
It is interpreted than other embodiments or design scheme more preferably or more advantage.Specifically, " illustrative " or " example are used
Such as " word is intended to that related notion is presented in specific ways.
It should also be noted that, the embodiment of the present invention in, " (English：Of) ", " corresponding (English：
Corresponding, relevant) " and " corresponding (English：Corresponding it) " can use with sometimes, it should be pointed out that
It is that, when not emphasizing its difference, meaning to be expressed is consistent.
The network environment of existing visible light wireless communication system is made of multiple access points, the covering of each access point
Range be it is fixed, when user carries the covering that mobile terminal is moved to from the coverage area of an access point another access point
When range, the mobile terminal of user needs to switch the access point of itself access network, and this handoff procedure necessarily will cause net
The interruption and delay of network, if user uses mobile terminal migration indoors, use of the user to visible light wireless communication system
Experience is just more bad.
In view of the above-mentioned problems, the embodiment of the present invention provides to be accessed in a kind of visible light wireless communication system shown in referring to Fig.1
The distribution method of point, including：
101, the coverage area of at least one access point in visible light wireless communication system is obtained.
Illustratively, in practice, in order in all coverage areas to visible light wireless communication system each position connect
Access point distribution condition is configured, and usually obtains the coverage area of access point all in visible light wireless communication system；When
So, the present invention makees concrete restriction not to this；
Access point mentioned here is the LiFi access point in visible light wireless communication system.
102, by the coverage area of access point any at least one access point with the coverage area of remaining access point without
The part of overlapping is determined as independent coverage area, will connect in the coverage area of access point any at least one access point with remaining
The part of the overlapped coverage of access point is determined as mixing coverage area.
103, the total data flow of independent coverage area the corresponding access point of independent coverage area is distributed to be responsible for.
104, the signal attribute ginseng of the corresponding access point of mixing coverage area each position in mixing coverage area is obtained
Number.
Preferably, the signal attribute parameter in the embodiment of the present invention can be signal strength.
105, mixing is covered by model according to the signal attribute parameter of the corresponding access point in position each in mixing coverage area
The total data flow enclosed distributes to the corresponding access point of blend range.
106, model is covered according to the access point allocation result of the total data flow of all independent coverage areas and all mixing
The access point allocation result of the total data flow enclosed formulates access point allocation table.
Illustratively, access point allocation table meeting cloud storage is in the data center in visible light wireless communication system.
107, the location information of user terminal is obtained.
Specifically, the location information of user terminal refers to user terminal in visible light wireless communication system in embodiments of the present invention
The position of receiving and transmitting signal in all coverage areas of system.
108, the total data flow of user terminal is carried out according to the location information of user terminal and access point allocation table
Distribution.
Optionally, in the embodiment of the present invention, it is seen that light wireless communication system is indoor visible light wireless communication system, and can
The corresponding Interior Space of visible light wireless communication system is completely covered in the coverage area of all access points in light-exposed wireless communication system
Between.
In technical solution provided by the above embodiment, at least one access point in visible light wireless communication system is obtained first
Coverage area, all covering models of light wireless communication system will be seen that according to the overlapping situation of the coverage area of all access points
It encloses and classifies, wherein only transferring to the access point to bear by all data traffics of the independent coverage area of access point covering
Duty, signal attribute parameter of the mixing coverage area covered by multiple access points then according to its corresponding multiple access point are total to its
Data traffic be responsible for access point and be allocated；Then access point distribution is responsible for according to the data traffic of aforementioned all kinds of coverage areas
Situation access point allocation table；Finally determine that the access point of user terminal distributes according to user terminal location and access point allocation table
Scheme.So the technical solution can when user terminal is in independent coverage area by its data traffic entirely by corresponding one
Access point is responsible for；When it is moved to mixing coverage area, then its data traffic is responsible for by corresponding multiple access points, and such one
Come, user terminal is in visible light wireless communication system if when being moved to adjacent mixing coverage area from independent coverage area
Then it is corresponding to increase the mixing coverage area while retaining the access point of data traffic of original responsible user terminal
Other access points in access point are responsible for the data traffic of user terminal；When user terminal is moved to other from mixing coverage area
When adjacent independent coverage area, the access point for being responsible for the data traffic of user terminal becomes multiple from one, but because original
Responsible user terminal data traffic access point in necessarily have this adjacent the corresponding access point of independent coverage area, also
So that summarizing the interruption and time delay that not will cause user terminal data flow in handoff procedure, the usage experience of user is improved.
For clearer explanation technical solution provided in an embodiment of the present invention, referring to shown in Fig. 2, the embodiment of the present invention is also
There is provided access point in another visible light wireless communication system distribution method be used as to it is above-mentioned be embodiment offer visible light
The distribution method of access point further remarks additionally in wireless communication system, and this method includes：
201, the coverage area of at least one access point in visible light wireless communication system is obtained.
Optionally, the visible light wireless communication system in the embodiment of the present invention is indoor visible light wireless communication system, and
It can be seen that the corresponding interior of visible light wireless communication system is completely covered in the coverage area of all access points in light wireless communication system
Space.
202, by the coverage area of access point any at least one access point with the coverage area of remaining access point without
The part of overlapping is determined as independent coverage area, will connect in the coverage area of access point any at least one access point with remaining
The part of the overlapped coverage of access point is determined as mixing coverage area.
203, the total data flow of independent coverage area the corresponding access point of independent coverage area is distributed to be responsible for.
204, the signal attribute ginseng of the corresponding access point of mixing coverage area each position in mixing coverage area is obtained
Number.
Preferably, the signal attribute parameter in the embodiment of the present invention can be signal strength.
205, according to the corresponding access point of mixing coverage area, the signal attribute of each position is joined in mixing coverage area
Number will mix coverage area and be classified as different deviation mixing coverage areas.
For example, a certain region is corresponded to there are three access point A access point, B access point and C access point in mixing coverage area,
Wherein, the signal attribute parameter for the signal that A access point provides in the region is generally greater than B access point and C access point, and B connects
Access point is greater than C access point in the signal attribute parameter for the signal that the region provides again, so can be inclined A times by the territorial classification
BC mixes coverage area, remaining and so on；Other similar mode classification is with no restrictions.
206, according to the letter for being biased to the corresponding access point of mixing coverage area each position in deviation mixing coverage area
Number property parameters are arranged according to preset rules and are biased to the responsible data traffic of the corresponding each access point of mixing coverage area and account for partially
To the accounting of the total data flow of mixing coverage area.
For example, for the inclined A BC in the example in 205 steps mixes coverage area, according to position each in it
Signal attribute parameter, it can be realized that the signal attribute parameter for the signal that wherein A access point provides is maximum, is then followed successively by B
Access point and C access point, then when distributing the total data flow of deviation mixing coverage area, at most to the distribution of A access point,
B access point is secondly, C access point is minimum；Illustratively, it can be 70% to the data traffic that A access point distributes, be connect to B
The data traffic of access point distribution can be 20%, can be 10% to the data traffic that C access point distributes, specific ratio, which is not done, to be had
Body limitation, does more, B access point takes second place, and C access point is minimum as long as meeting A access point.
207, model is covered according to the access point allocation result of the total data flow of all independent coverage areas and all mixing
The access point allocation result of the total data flow enclosed formulates access point allocation table.
Specifically, needing to show the access point of the total data flow of each independent coverage area in access point allocation table
The access point distribution condition of the total flow of distribution condition and deviation mixing coverage area.
208, judge whether the working condition of at least one access point generates change.
If changing, 201 are executed；If having not been changed, 209 are executed；
Optionally, working condition changes including at least following any one or more：Quantity change, any access of access point
The coverage area of point changes and the replacement of any access point；
After making access point allocation table, need to detect the corresponding covering of access point allocation table at regular intervals
Whether each access point in range has replacement or is added with the presence or absence of new access point, if so, being then necessarily required to make again
Table is determined to prevent user terminal from can not provide data traffic using corresponding access point, influences user experience.
209, the location information of user terminal is obtained.
210, according to the location information of user terminal determine user terminal belonging to target coverage area.
Wherein, target coverage area is any independent coverage area or any mixing coverage area.
211, the target coverage area according to belonging to user terminal and access point allocation table are by the total data of user terminal
Flow is allocated.
Illustratively, scheme provided in an embodiment of the present invention is carried out by taking some indoor visible light wireless communication system as an example
Explanation：
Referring to shown in Fig. 3, which is had family by four access point (A, B, C and D) coverings
Interior space；Wherein in the rectangle agent's room of dash area, circle represents the coverage area of access point, the covering of each access point
Range size is identical, and indoors in environment, total area coverage of all access points is more than or equal to careat；
Careat can be divided into 12 by overlapping situation according to the coverage area of each access point, wherein independent covering model
Enclose for：Z1, Z2, Z3 and Z4；Mixing coverage area is：Z5, Z6, Z7 and Z8；
Because each access point is positioned at its coverage area the center point, in the covering of any access point in figure
The signal attribute parameter (signal strength) that the interior position closer from the center of circle of range obtains its any access point is then bigger, so letter
Eight deviation coverage areas can be divided into according to the difference of number of access point again in number mixing coverage area：A B mixing covering partially
Range Z51, inclined A C mix coverage area Z61, inclined B A mixing coverage area Z52, inclined C A mixes coverage area Z62, inclined B
Secondary D mixing coverage area Z81, inclined D B mixing coverage area Z82, inclined C D mixing coverage area Z71 and inclined D C mixing are covered
Lid range Z72；
Access point allocation table such as the following table 1 then finally can specify according to above-mentioned classification：
Table 1
Wherein, main access point is responsible for the 80% of the total data flow of corresponding region, and secondary access point is responsible for the total of corresponding region
The 20% of data traffic；
After obtaining user terminal location, according to the sum for going out user terminal of its position corresponding region and upper table 1
According to the access point allocation plan of flow.
In summary, in visible light wireless communication system provided in an embodiment of the present invention access point distribution method because
This method includes：Obtain the coverage area of at least one access point in visible light wireless communication system；By at least one access point
In any access point coverage area in the part non-overlapping with the coverage area of remaining access point be determined as independent coverage area,
It will be determined in the coverage area of access point any at least one access point with the part of the overlapped coverage of remaining access point
To mix coverage area；The total data flow of independent coverage area is distributed to the corresponding access point of independent coverage area to be responsible for；
Obtain the signal attribute parameter of the corresponding access point of mixing coverage area each position in mixing coverage area；It is covered according to mixing
The corresponding access point of lid range signal attribute parameter of each position in mixing coverage area will mix the sum of coverage area
Give blend range corresponding access point according to assignment of traffic；It is distributed according to the access point of the total data flow of all independent coverage areas
As a result the access point allocation result with the total data flow of all mixing coverage areas formulates access point allocation table；Obtain user
The location information of terminal and according to the location information of user terminal and access point allocation table by the total data flow of user terminal
It is allocated.So technical solution provided in an embodiment of the present invention can be counted when user terminal is in independent coverage area
It is responsible for entirely by a corresponding access point according to flow；When its be moved to mixing coverage area when then its data traffic by corresponding more
A access point is responsible for, and so, user terminal is in visible light wireless communication system if be moved to from independent coverage area
It can then increase while retaining the access point of data traffic of original responsible user terminal when adjacent mixing coverage area
Other access points in the corresponding access point of mixing coverage area are responsible for the data traffic of user terminal；When user terminal is from mixed
When closing coverage area and being moved to other adjacent independent coverage areas, it is responsible for the access point of the data traffic of user terminal by one
Become multiple, but because the independent covering model for necessarily having this adjacent in the access point of the data traffic of original responsible user terminal
Corresponding access point is enclosed, also allows for summarizing in handoff procedure and not will cause the interruption and time delay of user terminal data flow, is mentioned
The high usage experience of user.
Referring to shown in Fig. 4, the embodiment of the present invention also provides a kind of distribution dress of access point in visible light wireless communication system
Set 01, including：Obtain module 41, categorization module 42, distribution module 43 and processing module 44；
Module 41 is obtained, for obtaining the coverage area of at least one access point in visible light wireless communication system；
Categorization module 42, for will acquire the coverage area of any access point at least one access point that module 41 obtains
In the part non-overlapping with the coverage area of remaining access point be determined as independent coverage area, will acquire module 41 and obtain at least
It is determined as mixing with the part of the overlapped coverage of remaining access point in the coverage area of any access point in one access point
Coverage area；
Distribution module 43, the total data flow of the independent coverage area for determining categorization module 42, which is distributed to, independently to be covered
The corresponding access point of lid range is responsible for；
Acquisition module 41 is also used to obtain the corresponding access point of mixing coverage area that categorization module 42 determines and covers in mixing
The signal attribute parameter of each position within the scope of lid；
Distribution module 43 is also used to be covered according to the corresponding access point of mixing coverage area for obtaining the acquisition of module 41 in mixing
It is corresponding to be distributed to blend range by the signal attribute parameter of each position within the scope of lid for the total data flow for mixing coverage area
Access point；
Processing module 44, for the access point point according to distribution module 43 to the total data flow of all independent coverage areas
The access point allocation result of total data flow with result and all mixing coverage areas formulates access point allocation table；
Obtain the location information that module 41 is also used to obtain user terminal；
Processing module 44 is also used to be made according to the location information and processing module 44 that obtain the user terminal that module 41 obtains
The total data flow of user terminal is allocated by fixed access point allocation table.
Optionally, it is seen that light wireless communication system is indoor visible light wireless communication system, and visible light wireless communication system
The corresponding interior space of visible light wireless communication system is completely covered in the coverage area of all access points in system.
Optionally, distribution module 43 is specifically used for：According to each position in the mixing coverage area for obtaining the acquisition of module 41
Mixing coverage area is classified as different by the signal attribute parameter of corresponding access point each position in mixing coverage area
It is biased to mixing coverage area；
It is being biased to mix the signal category of each position in coverage area according to the corresponding access point of mixing coverage area is biased to
Property parameter, be arranged according to preset rules and be biased to the responsible data traffic of the corresponding each access point of mixing coverage area to account for deviation mixed
Close the accounting of the total data flow of coverage area.
Optionally, processing module 44 is specifically used for：
User is determined according to the location information of user terminal and the classification results of categorization module 42 that obtain the acquisition of module 41
Target coverage area belonging to terminal, target coverage area are any independent coverage area or any mixing coverage area；
The target coverage area according to belonging to user terminal and access point allocation table are by the total data flow of user terminal
It is allocated.
Preferably, signal attribute parameter includes signal strength.
Optionally, which further includes judgment module 45；Judgment module 45, for formulating access point point in processing module 44
Change whether is generated with the working condition for judging at least one access point after table；
When judgment module 45 determines the working condition generation change of at least one access point, module 41 is obtained for again
Obtain the coverage area of at least one access point in visible light wireless communication system；
When the working condition of at least one the determining access point of judgment module 45 does not generate change, module 41 is obtained for obtaining
Take the location information of user terminal and according to the location information of user terminal determine user terminal belonging to target coverage area.
Optionally, working condition changes including at least following any one or more：Quantity change, any access of access point
The coverage area of point changes and the replacement of any access point.
The distributor of access point in visible light wireless communication system provided in an embodiment of the present invention, because of the device packet
It includes：Module is obtained, for obtaining the coverage area of at least one access point in visible light wireless communication system；Categorization module is used
Covering model at least one access point that will acquire module acquisition in the coverage area of any access point with remaining access point
It encloses non-overlapping part and is determined as independent coverage area, will acquire any access point at least one access point of module acquisition
It is determined as mixing coverage area with the part of the overlapped coverage of remaining access point in coverage area；Distribution module, being used for will
The total data flow for the independent coverage area that categorization module determines is distributed to the corresponding access point of independent coverage area and is responsible for；It obtains
Module is also used to obtain the corresponding access point of mixing coverage area that categorization module determines and is mixing each position in coverage area
Signal attribute parameter；Distribution module is also used to mixed according to the corresponding access point of mixing coverage area for obtaining module acquisition
It is corresponding to be distributed to blend range by the signal attribute parameter of each position in coverage area for the total data flow for mixing coverage area
Access point；Processing module, for being distributed according to access point of the distribution module to the total data flow of all independent coverage areas
As a result the access point allocation result with the total data flow of all mixing coverage areas formulates access point allocation table；Obtain module
It is also used to obtain the location information of user terminal；Processing module is also used to be distributed according to the location information and access point of user terminal
The total data flow of user terminal is allocated by table.So technical solution provided in an embodiment of the present invention can be at user's end
Its data traffic is responsible for by a corresponding access point full when end is in independent coverage area；When it is moved to mixing covering model
Then its data traffic is responsible for by corresponding multiple access points when enclosing, and so, user terminal is in visible light wireless communication system
In can retain original responsible user terminal if when being moved to adjacent mixing coverage area from independent coverage area
While the access point of data traffic, increases other access points in the corresponding access point of mixing coverage area and be responsible for user's end
The data traffic at end；When user terminal is moved to other adjacent independent coverage areas from mixing coverage area, it is responsible for user
The access point of the data traffic of terminal becomes multiple from one, but the access of the data traffic because of original responsible user terminal
Necessarily there is the adjacent corresponding access point of independent coverage area in point, also allows for summarizing in handoff procedure not will cause user
The interruption and time delay of terminal data flow, improve the usage experience of user.
The step of method in conjunction with described in the disclosure of invention or algorithm can realize in a manner of hardware, can also
It is realized in a manner of being to execute software instruction by processor.The embodiment of the present invention also provides a kind of storage medium, which is situated between
Matter may include memory, soft for storing computer used in the distributor of access point in visible light wireless communication system
Part instruction, it includes program codes designed by the distribution method for access point in the visible light wireless communication system of execution.Specifically
, software instruction can be made of corresponding software module, and software module can be stored on random access memory (Random
Access Memory, RAM), flash memory, read-only memory (Read Only Memory, ROM), the read-only storage of erasable programmable
Device (Erasable Programmable ROM, EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically
EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM (CD-ROM) or any other shape well known in the art
In the storage medium of formula.A kind of illustrative storage medium is coupled to processor, to enable a processor to from the storage medium
Information is read, and information can be written to the storage medium.Certainly, storage medium is also possible to the component part of processor.Processing
Device and storage medium can be located in ASIC.In addition, the ASIC can be located in core network interface equipment.Certainly, processor and
Storage medium can also be used as discrete assembly and be present in core network interface equipment.
The embodiment of the present invention also provides a kind of computer program, which can be loaded directly into memory, and
Containing software code, which is loaded into via computer and can be realized above-mentioned visible light wireless communication system after executing
The distribution method of access point in system.
Those skilled in the art are it will be appreciated that in said one or multiple examples, function described in the invention
It can be realized with hardware, software, firmware or their any combination.It when implemented in software, can be by these functions
Storage in computer-readable medium or as on computer-readable medium one or more instructions or code transmitted.
Computer-readable medium includes computer storage media and communication media, and wherein communication media includes convenient for from a place to another
Any medium of one place transmission computer program.Storage medium can be general or specialized computer can access it is any
Usable medium.
Illustratively, the user terminal in embodiment is specifically as follows：Mobile phone, navigator, personal computer (personal
Computer, PC), net book, personal digital assistant (English：Personal Digital Assistant, referred to as：PDA), take
Business device etc..
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (14)
1. the distribution method of access point in a kind of visible light wireless communication system, which is characterized in that including：
Obtain the coverage area of at least one access point in the visible light wireless communication system；
By at least one described access point in the coverage area of any access point it is non-overlapping with the coverage area of remaining access point
Part be determined as independent coverage area, will be connect in the coverage area of any access point with remaining at least one described access point
The part of the overlapped coverage of access point is determined as mixing coverage area；
The total data flow of the independent coverage area is distributed to the corresponding access point of the independent coverage area to be responsible for；
Obtain the signal attribute ginseng of the corresponding access point of the mixing coverage area each position in the mixing coverage area
Number；
According to the signal attribute ginseng of the corresponding access point of the mixing coverage area each position in the mixing coverage area
The total data flow of the mixing coverage area is distributed to the corresponding access point of the blend range by number；
According to the access point allocation result of the total data flow of all independent coverage areas and all mixing coverage areas
The access point allocation result of total data flow formulates access point allocation table；
The location information of acquisition user terminal simultaneously will according to the location information of the user terminal and described access point allocation table
The total data flow of the user terminal is allocated.
2. the method according to claim 1, wherein the visible light wireless communication system be indoor visible light without
Line communication system, and in the visible light wireless communication system coverage area of all access points be completely covered the visible light without
The corresponding interior space of line communication system.
3. the method according to claim 1, wherein described according to the corresponding access point of the mixing coverage area
The signal attribute parameter of each position in the mixing coverage area, by the total data assignment of traffic of the mixing coverage area
Include to the corresponding access point of the blend range：
According to the signal attribute ginseng of the corresponding access point of the mixing coverage area each position in the mixing coverage area
The mixing coverage area is classified as different deviations and mixes coverage area by number；
According to the corresponding access point of mixing coverage area of being biased in the letter for being biased to each position in mixing coverage area
Number property parameters are arranged according to preset rules and described are biased to the responsible data traffic of the corresponding each access point of mixing coverage area
Account for the accounting of the total data flow for being biased to mixing coverage area.
4. the method according to claim 1, wherein the location information according to the user terminal and described
Access point allocation table by the total data flow of the user terminal be allocated including：
According to the location information of the user terminal determine the user terminal belonging to target coverage area, the target coverage
Range is any independent coverage area or any mixing coverage area；
According to target coverage area belonging to the user terminal and described access point allocation table by the total data of user terminal
Flow is allocated.
5. the method according to claim 1, wherein the signal attribute parameter includes signal strength.
6. the method according to claim 1, wherein in the sum according to all independent coverage areas
Access is formulated according to the access point allocation result of the total data flow of the access point allocation result and all mixing coverage areas of flow
Further include after point allocation table：
Judge whether the working condition of at least one access point generates change；
When the working condition for determining at least one access point generates change, the visible light wireless communication system is reacquired
The coverage area of at least one access point in system；
When the working condition for determining at least one access point does not generate change, the location information and root of user terminal are obtained
Target coverage area belonging to the user terminal is determined according to the location information of the user terminal.
7. according to the method described in claim 6, it is characterized in that, the working condition change include at least it is following any or
It is a variety of：The quantity of access point changes, the coverage area of any access point changes and the replacement of any access point.
8. the distributor of access point in a kind of visible light wireless communication system, which is characterized in that including：Obtain module, classification
Module, distribution module and processing module；
The acquisition module, for obtaining the coverage area of at least one access point in the visible light wireless communication system；
The categorization module, for described in the acquisition module is obtained at least one access point any access point covering
The part non-overlapping with the coverage area of remaining access point is determined as independent coverage area in range, and the acquisition module is obtained
At least one described access point in any access point coverage area in part with the overlapped coverage of remaining access point
It is determined as mixing coverage area；
The total data flow of the distribution module, the independent coverage area for determining the categorization module distributes to institute
The corresponding access point of independent coverage area is stated to be responsible for；
The module that obtains is also used to obtain the determining corresponding access point of the mixing coverage area of the categorization module in institute
State the signal attribute parameter of each position in mixing coverage area；
The corresponding access point of the mixing coverage area that the distribution module is also used to be obtained according to the acquisition module is in institute
The total data flow of the mixing coverage area is distributed to institute by the signal attribute parameter for stating each position in mixing coverage area
State the corresponding access point of blend range；
The processing module, for the access according to the distribution module to the total data flow of all independent coverage areas
The access point allocation result of the total data flow of point allocation result and all mixing coverage areas formulates access point allocation table
Lattice；
The location information for obtaining module and being also used to obtain user terminal；
The location information for the user terminal that the processing module is also used to be obtained according to the acquisition module and the processing
The total data flow of the user terminal is allocated by the described access point allocation table that module is formulated.
9. device according to claim 8, which is characterized in that the visible light wireless communication system be indoor visible light without
Line communication system, and in the visible light wireless communication system coverage area of all access points be completely covered the visible light without
The corresponding interior space of line communication system.
10. device according to claim 8, which is characterized in that the distribution module is specifically used for：
The corresponding access point of the mixing coverage area obtained according to the acquisition module is each in the mixing coverage area
The mixing coverage area is classified as different deviations and mixes coverage area by the signal attribute parameter of a position；
According to the corresponding access point of mixing coverage area of being biased in the letter for being biased to each position in mixing coverage area
Number property parameters are arranged according to preset rules and described are biased to the responsible data traffic of the corresponding each access point of mixing coverage area
Account for the accounting of the total data flow for being biased to mixing coverage area.
11. device according to claim 8, which is characterized in that the processing module is specifically used for：
The location information of the user terminal and the classification results of the categorization module obtained according to the acquisition module determines
Target coverage area belonging to the user terminal, the target coverage area are any independent coverage area or any institute
State mixing coverage area；
According to target coverage area belonging to the user terminal and described access point allocation table by the total of the user terminal
Data traffic is allocated.
12. device according to claim 8, which is characterized in that the signal attribute parameter includes signal strength.
13. device according to claim 8, which is characterized in that further include judgment module；
The judgment module, for judge after the processing module formulates described access point allocation table it is described at least one connect
Whether the working condition of access point generates change；
When the judgment module determines the working condition generation change of at least one access point, the acquisition module is used for
Reacquire the coverage area of at least one access point in the visible light wireless communication system；
When the working condition of determining at least one access point of the judgment module does not generate change, the acquisition module is used
In obtain user terminal location information and according to the location information of the user terminal determine the user terminal belonging to mesh
Mark coverage area.
14. device according to claim 13, which is characterized in that the working condition changes including at least following any
Or it is a variety of：The quantity of access point changes, the coverage area of any access point changes and the replacement of any access point.
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