CN105409266B

CN105409266B - A kind of method and apparatus of combined dispatching

Info

Publication number: CN105409266B
Application number: CN201380078491.5A
Authority: CN
Inventors: 姜艳平; 杨浔; 赵牧
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-10-28
Filing date: 2013-10-28
Publication date: 2019-04-12
Anticipated expiration: 2033-10-28
Also published as: WO2015061949A1; CN105409266A

Abstract

The embodiment of the present invention provides a kind of method and apparatus of combined dispatching, it is related to wireless communication field, can guarantee adjacent access point can simultaneously normal communication, the described method includes: the first access point obtains the information of the currently used sector of the second access point, first access point is according to the information, determine the currently used sector of the second access point, wherein second access point is with the same frequency of first access point and coverage area has overlapping access point；First access point determines itself current sector to be used according to the currently used sector of the second access point, so that the interference between the sector and the currently used sector of the second access point that determine is less than preset value；First access point is communicated using the determining sector with its website.The present invention is used for wireless LAN communication.

Description

A kind of method and apparatus of combined dispatching

Technical field

The present invention relates to wireless communication field more particularly to a kind of method and apparatus of combined dispatching.

Background technique

WLAN (Wireless Local Area Network, WLAN) technology due to its wireless penetration, rate height with And the advantages that low in cost and the deep welcome by market.As gradually popularizing for WLAN is continuous with traffic capacity demands Increase, the deployment of WLAN becomes more and more intensive, and adjacent basic service set (Basic Service Set, BSS) is adopted The probability communicated simultaneously with same channel is also higher and higher, wherein a basic service set is by an access point (Access Point, AP) and several be associated websites (Station, STA) composition.

In this case, can guarantee adjacent basic service set it is respective communication simultaneously carry out and between each other Interfere the smaller key for becoming and improving communication quality.For this purpose, there is the technology using directional transmissions in the prior art.It is different from omnidirectional Transmission technology, the region division that directional transmissions technology covers an access point are several sectors (Sector), it is specified that at certain One moment, only one sector was able to carry out communication.In request transmission/clear to send (Request To Send/Clear To Send, RTS/CTS) mechanism close when, two adjacent access points are communicated only with a sector, if the two fan The coverage area in area is not overlapped, then the interference between them will be smaller.Relative to omni-direction transmissions technology in access point In the case where dense distribution, it can not be communicated simultaneously, directional transmissions skill due to being overlapped more between neighboring access point coverage area Art improves communication efficiency really.

But when RTS/CTS mechanism is closed, what is communicated using directional transmissions technology and simultaneously two adjacent is connect The respective sector of access point may overlap in coverage area, although at this point, can lead to simultaneously between adjacent access point Letter, but interfere greatly, or even cause two access points can not normal communication due to interference especially severe；Moreover, in RTS/ When CTS mechanism is opened, in order to avoid interference, listening to neighbouring another communicating access point of access point can select to keep out of the way, Although can not be communicated simultaneously in this way, not interfered between adjacent access point.

Summary of the invention

The embodiment of the present invention provides a kind of method and apparatus of combined dispatching, can be simultaneously with the access point for guaranteeing adjacent Normal communication.

In a first aspect, providing a kind of method of combined dispatching, comprising:

First access point obtains the information of the currently used sector of the second access point, and first access point is according to Information determines the currently used sector of the second access point, wherein second access point be and first access point With frequency and coverage area has the access point of overlapping；

First access point determines that itself is current to be used according to the currently used sector of the second access point Sector, so that the interference between the sector and the currently used sector of the second access point that determine is less than preset value；

First access point is communicated using the determining sector with website.

With reference to first aspect, in the first possible implementation of the first aspect, first access point obtains the The information of the currently used sector of two access points includes:

First access point obtains the medium access control MAC Address of the present communications website of second access point；

First access point is according to the MAC Address and pair between the MAC Address obtained and the information of sector in advance It should be related to, obtain the information of the currently used sector of the second access point.

The possible implementation of with reference to first aspect the first, in second of possible implementation of first aspect In, the medium access control MAC Address that first access point obtains the present communications website of second access point includes:

If first access point is in the coverage area of second access point, described in the first access point reception The control frame or data frame that second access point is sent, or receive the control that the present communications website of second access point is sent The MAC Address of present communications website in frame or data frame, the control frame and the data frame comprising second access point；

Alternatively, if first access point not in the coverage area of second access point, first access point Website into the coverage area simultaneously in first access point and second access point sends MAC Address request and disappears Breath, and receive second access point and pass through covering model described while in first access point and second access point The MAC Address response message that website in enclosing returns, the MAC Address response message include the current logical of second access point Believe the MAC Address of website.

The possible implementation of with reference to first aspect the first, in the third possible implementation of first aspect In, the corresponding relationship that first access point obtains between the MAC Address and the information of sector includes:

If first access point is in the coverage area of second access point, described in the first access point reception The corresponding relationship notice message of second access point periodic broadcast includes the MAC Address in the corresponding relationship notice message Corresponding relationship between the information of sector；

Alternatively, if first access point not in the coverage area of second access point, first access point Website into the coverage area simultaneously in first access point and second access point sends corresponding relationship request and disappears Breath, and receive second access point and pass through covering model described while in first access point and second access point The corresponding relationship response message that website in enclosing returns, the corresponding relationship response message include the MAC Address and sector Corresponding relationship between information.

With reference to first aspect, in a fourth possible implementation of the first aspect, first access point obtains institute The information for stating the currently used sector of the second access point includes:

If first access point is in the coverage area of second access point, described in the first access point reception The control frame that the present communications website of second access point or second access point is sent includes described the in the control frame The information of the currently used sector of two access points；

Alternatively, if first access point not in the coverage area of second access point, first access point Website into the coverage area simultaneously in first access point and second access point sends sector auxiliary information request and disappears Breath, and receive second access point and pass through covering model described while in first access point and second access point The sector auxiliary information response message that website in enclosing returns, the sector auxiliary information response message include the current institute of second access point The information of the sector used.

Second with reference to first aspect or the 4th kind of possible implementation, in the 5th kind of possible reality of first aspect In existing mode, the control frame is that request sends RTS frame and/or clear to send CTS frame.

With reference to first aspect or first aspect the first to the 5th kind of possible any implementation, in first aspect In 6th kind of possible implementation, the information of the currently used sector of the second access point includes: second access The number or main lobe direction of the currently used sector of point.

With reference to first aspect or first aspect the first to the 6th kind of possible any implementation, in first aspect In 7th kind of possible implementation, first access point obtain the currently used sector of the second access point information it Before, the method also includes:

First access point obtains the priority of itself and second access point；

The information that first access point obtains the currently used sector of the second access point includes:

When the priority of second access point is higher than the priority of first access point, first access point is obtained Take the information of the currently used sector of the second access point.

The 7th kind of possible implementation with reference to first aspect, in the 8th kind of possible implementation of first aspect In, second access point is with first access point with frequency and coverage area has overlapping multiple access points, described first Access point obtain the currently used sector of the second access point information include:

First access point obtains that the first access point described in priority ratio in second access point is higher each to be connect The information of the currently used sector of access point；

First access point determines that the currently used sector of the second access point includes: according to the information

First access point determines the first access point described in priority ratio in second access point according to the information The higher currently used sector of each access point；

First access point determines that itself is current to be used according to the currently used sector of the second access point Sector, so that the interference between the sector and the currently used sector of the second access point that determine is less than preset value, Include:

First access point, first access point according to priority ratio in second access point is higher each to be connect The currently used sector of access point determines itself current sector to be used, so that the sector determined each connects with described Interference between the currently used sector of access point is less than preset value.

With reference to first aspect the first is to the 8th kind of possible any implementation, in the 9th kind of possibility of first aspect Implementation in, first access point determines that itself is currently wanted according to the currently used sector of the second access point The sector used, so that the interference between the sector and the currently used sector of the second access point that determine is less than in advance If value includes:

First access point selects currently used with second access point from the sector with communication task Sector is non-overlapping and the relative difference of main lobe direction orientation angle is not less than the sector of threshold value, as itself current fan to be used Area.

The 9th kind of possible implementation with reference to first aspect, in the tenth kind of possible implementation of first aspect In, first access point selected from the sector with communication task with the currently used sector of the second access point without The relative difference of overlapping and main lobe direction orientation angle is not less than the sector of threshold value, as itself current sector packet to be used It includes:

If there are the multiple and current institutes of second access point in the sector that first access point has communication task The sector used is non-overlapping and the relative difference of main lobe direction orientation angle is not less than the sector of threshold value, then first access point The main lobe of main lobe direction orientation angle and the currently used sector of the second access point is selected from multiple sectors The maximum sector of the relative difference of direction orientation angle, as itself current sector to be used.

The 9th kind of possible implementation with reference to first aspect, in a kind of the tenth possible implementation of first aspect In, first access point selected from the sector with communication task with the currently used sector of the second access point without The relative difference of overlapping and main lobe direction orientation angle is not less than the sector of threshold value, as itself current sector packet to be used It includes:

If there are the multiple and current institutes of second access point in the sector that first access point has communication task The sector used is non-overlapping and the relative difference of main lobe direction orientation angle is not less than the sector of threshold value, then first access point Communication time is selected to be not more than the communication time of the currently used sector of the second access point from multiple sectors Sector, as itself current sector to be used.

The tenth kind of possible implementation with reference to first aspect, in the 12nd kind of possible implementation of first aspect In, select main lobe direction orientation angle and second access point current from multiple sectors in first access point The maximum sector of relative difference of the main lobe direction orientation angle of used sector, as itself current sector to be used it Afterwards, the method also includes:

If referring in the main lobe direction orientation angle and the main lobe direction of the currently used sector of the second access point Into the maximum sector of relative difference of angle, there are multiple websites with communication task, then the first access point selections The website of communication task highest priority is as the website communicated with.

Second aspect provides a kind of device of combined dispatching, comprising:

Acquiring unit, for obtaining the information of the currently used sector of the second access point；

Determination unit, the information for being obtained according to the acquiring unit determine the current institute of second access point The sector used, wherein second access point is with the same frequency of the device of the combined dispatching and coverage area has overlapping connect Access point；

The determination unit is also used to determine that itself is currently wanted according to the currently used sector of the second access point The sector used, so that the interference between the sector and the currently used sector of the second access point that determine is less than in advance If value；

Communication unit, for being communicated using the determining sector with website.

In conjunction with second aspect, in the first possible implementation of the second aspect, the acquiring unit includes:

First obtains module, is specifically used for: obtaining the medium access control of the present communications website of second access point MAC Address；

Second obtains module, is specifically used for: obtaining the MAC Address that module obtains according to described first and obtains with preparatory MAC Address and sector information between corresponding relationship, obtain the information of the currently used sector of the second access point.

In conjunction with the first possible implementation of second aspect, in second of possible implementation of second aspect In, the first acquisition module is specifically used for:

If the device of the combined dispatching, in the coverage area of second access point, the first acquisition module connects Control frame or data frame that second access point is sent are received, or receives the present communications website transmission of second access point Control frame or data frame, present communications website in the control frame and the data frame comprising second access point MAC Address；

Alternatively, described first obtains if the device of the combined dispatching is not in the coverage area of second access point Website of the modulus block into the coverage area of device and second access point simultaneously in the combined dispatching is with sending MAC Location request message, and receive second access point and connect by described while in the combined dispatching device and described second The MAC Address response message that website in the coverage area of access point returns, the MAC Address response message connect comprising described second The MAC Address of the present communications website of access point.

In conjunction with the first possible implementation of second aspect, in the third possible implementation of second aspect In, the second acquisition module is specifically used for:

If the device of the combined dispatching, in the coverage area of second access point, the second acquisition module connects The corresponding relationship notice message of the second access point periodic broadcast is received, includes described in the corresponding relationship notice message Corresponding relationship between MAC Address and the information of sector obtains the MAC Address and described that module obtains according to described first Corresponding relationship notice message obtains the information of the currently used sector of the second access point；

Alternatively, described second obtains if the device of the combined dispatching is not in the coverage area of second access point Website of the modulus block into the coverage area of device and second access point simultaneously in the combined dispatching, which is sent, to be corresponded to Relationship request message, and receive second access point and pass through device and described second described while in the combined dispatching The corresponding relationship response message that website in the coverage area of access point returns, the corresponding relationship response message include described Corresponding relationship between MAC Address and the information of sector obtains the MAC Address and described that module obtains according to described first Corresponding relationship response message obtains the information of the currently used sector of the second access point.

In conjunction with second aspect, in the fourth possible implementation of the second aspect, the acquiring unit is specifically used for:

If the device of the combined dispatching, in the coverage area of second access point, the acquiring unit receives institute The control frame of the present communications website transmission of the second access point or second access point is stated, includes described in the control frame The information of the currently used sector of second access point；

Alternatively, the acquisition is single if the device of the combined dispatching is not in the coverage area of second access point Website of the member into the coverage area of device and second access point simultaneously in the combined dispatching sends sector auxiliary information Request message, and receive second access point and pass through described while device in the combined dispatching and second access The sector auxiliary information response message that website in the coverage area of point returns, the sector auxiliary information response message connect comprising described second The information of the currently used sector of access point.

In conjunction with second of second aspect or the 4th kind of possible implementation, in the 5th kind of possible reality of second aspect In existing mode, the control frame is that request sends RTS frame and/or clear to send CTS frame.

In conjunction with the first of second aspect or second aspect to the 5th kind of possible any implementation, in second aspect In 6th kind of possible implementation, the information of the currently used sector of the second access point includes: second access The number or main lobe direction of the currently used sector of point.

In conjunction with the first of second aspect or second aspect to the 6th kind of possible any implementation, in second aspect In 7th kind of possible implementation, the acquiring unit is also used to:

Before the information that the acquiring unit obtains the currently used sector of the second access point, obtains the joint and adjust The priority of the device of degree and second access point；

The acquiring unit is specifically used for:

In the priority for the device that the priority of second access point is higher than the combined dispatching, described second is obtained The information of the currently used sector of access point.

In conjunction with the 7th kind of possible implementation of second aspect, in the 8th kind of possible implementation of second aspect In, second access point is with the same frequency of the device of the combined dispatching and coverage area has overlapping multiple access points, described Acquiring unit is specifically used for:

Obtain the higher each current institute of access point of device of combined dispatching described in priority ratio in second access point The information of the sector used；

The determination unit is specifically used for:

The device of combined dispatching described in priority ratio is more in second access point according to acquired in the acquiring unit The information of the high currently used sector of each access point determines combined dispatching described in priority ratio in second access point The higher each currently used sector of access point of device；

According to the higher each current institute of access point of the device of combined dispatching described in priority ratio in second access point The sector used determines itself current sector to be used, so that the sector determined and each current institute of access point The interference between sector used is less than preset value.

In conjunction with the first of second aspect or second aspect to the 8th kind of possible any implementation, in second aspect In 9th kind of possible implementation, the determination unit is specifically used for:

Selection is non-overlapping with the currently used sector of the second access point and main from the sector with communication task The relative difference of valve direction orientation angle is not less than the sector of threshold value, the current fan to be used of device as the combined dispatching Area.

In conjunction with the 9th kind of possible implementation of second aspect, in the tenth kind of possible implementation of second aspect In, the determination unit is specifically used for:

If working as there are multiple with second access point in the sector that the device of the combined dispatching has communication task Sector is non-overlapping used in preceding and the relative difference of main lobe direction orientation angle is not less than the sector of threshold value, then described determining single Member selects the master of main lobe direction orientation angle Yu the currently used sector of the second access point from multiple sectors The maximum sector of relative difference of valve direction orientation angle, the current sector to be used of device as the combined dispatching.

In conjunction with the 9th kind of possible implementation of second aspect, in a kind of the tenth possible implementation of second aspect In, the determination unit is specifically used for:

If working as there are multiple with second access point in the sector that the device of the combined dispatching has communication task Sector is non-overlapping used in preceding and the relative difference of main lobe direction orientation angle is not less than the sector of threshold value, then described determining single When member selects communication time to be not more than the communication of the currently used sector of the second access point from multiple sectors Long sector, the current sector to be used of device as the combined dispatching.

In conjunction with the tenth kind of possible implementation of second aspect, in the 12nd kind of possible implementation of second aspect In, the determination unit is also used to:

If referring in the main lobe direction orientation angle and the main lobe direction of the currently used sector of the second access point Into the maximum sector of relative difference of angle, there are multiple websites with communication task, then the determination unit selection is logical The website of business highest priority is trusted as the website communicated with the device of the combined dispatching.

The method and apparatus of combined dispatching provided by the invention, the occasion applied to wireless LAN communication.In the present invention In, the second access point is with the same frequency of the first access point and coverage area has overlapping access point.First access point is obtaining To after the information of the currently used sector of the second access point, it can determine that second access point is worked as according to the information Sector used in preceding.Then, first access point is according to the currently used sector of the second access point, determining and institute The sector that the currently used sector interference of the second access point is less than preset value is stated, as itself current sector to be used, and It is communicated using identified sector.In this way, the sector and second access point that first access point determines are worked as It sector used in preceding can normal communication simultaneously.Two adjacent access point RTS/CTS mechanism are closed in compared with the existing technology When closing, the sector of respectively oriented communication causes the interference between the sector big because scheduling is improper, or in RTS/CTS mechanism When unlatching, making between adjacent access point because listening to the communicating access point selection evacuation of neighbouring access point can not be into Row simultaneously communicate, the method for combined dispatching provided in an embodiment of the present invention can ensure adjacent access point can and meanwhile positive normal open Letter.

Detailed description of the invention

Fig. 1 is the flow chart of an embodiment of the method for combined dispatching of the present invention；

Fig. 2A is the schematic diagram that sector divides；

Fig. 2 B is schematic diagram of the sector main lobe direction backwards to the first access point of the second access point；

Fig. 2 C is that the sector main lobe direction of the second access point is directed toward the schematic diagram of the first access point；

Fig. 3 is the schematic diagram of a specific embodiment of the method for combined dispatching of the present invention；

Fig. 4 A is the schematic diagram of beacon frame and communication time；

Fig. 4 B is the contrast schematic diagram of beacon frame and communication time；

Fig. 5 is the schematic diagram of the another specific embodiment of the method for combined dispatching of the present invention；

Fig. 6 is the structural block diagram of one embodiment of device of combined dispatching of the present invention；

Fig. 7 is the structural block diagram of an embodiment of access point of the present invention.

Specific embodiment

The technical solution of the embodiment of the present invention is clearly and completely described with reference to the accompanying drawing, it is clear that described Embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ability Domain those of ordinary skill every other embodiment obtained without making creative work, belongs to the present invention The range of protection.

Fig. 1 is the flow chart of an embodiment of the method for combined dispatching of the present invention.As shown in Figure 1, the embodiment of the present invention mentions The method of the combined dispatching of confession includes:

11, the first access point obtain the currently used sector of the second access point information, first access point according to The information determines the currently used sector of the second access point, wherein second access point is to connect with described first Access point is with frequency and coverage area has the access point of overlapping.

In embodiments of the present invention, first access point is specifically as follows an access point, the second access point tool Body can be another access point or a group of access point other than first access point, wherein second access Point is communicated using identical frequency with first access point, and the coverage area of the two has overlapping, i.e. the two respectively When carrying out directional communication, has and interfere with each other between communication.In the remaining part of this specification, the adjacency of access points table Show that access point carries out communication using identical frequency and coverage area has overlapping.It should be noted that second access point with First adjacency of access points is right based on basic service set corresponding to second access point and the first access point institute The basic service set answered is adjacent, wherein the basic service set is present in the wireless local area planar network architecture of foundation structure type, includes Several websites being associated in one access point and its coverage area.The method of combined dispatching provided in an embodiment of the present invention It can be applied in wireless LAN communication, especially in the wireless LAN communication of basic service set dense distribution, that is, access In the wireless LAN communication of point dense distribution, moreover, RTS/CTS mechanism only need to the unlatching when using control frame.

In the case where only there are two adjacency of access points, is there is communication task (such as downlink data in second access point Packet) when, it is communicated with website corresponding to the communication task, then, in the way of the prior art, most for website selection Excellent sector, the sector where the website are the currently used sector of the second access point.Second access point exists After selecting currently used sector to complete, the information of its currently used sector is sent, wherein described current The information of used sector includes number or main lobe direction of sector etc..The number of the sector is divided by the sector of access point Mode determines that the sector of different main lobe directions corresponds to different sector numbers and (for simplicity, is only with number in explanation below Example).In this way, first access point receives information transmitted by second access point by direct or indirect mode, just The number of the available currently used sector of second access point.

In this step, first access point can by control frame, data frame or MAC Address response message, and Corresponding relationship notice message or corresponding relationship response message determine the currently used sector of the second access point, can also lead to It crosses control frame or sector auxiliary information response message determines the currently used sector of the second access point.The response message be by Website is sent for request message, is carried the requested information of the request message, can be sent in a variety of formats.Under Face is briefly described in two kinds of situation.

The first situation: pass through control frame, data frame or MAC Address response message and right in first access point It should be related to that notice message or corresponding relationship response message determine the feelings of the information of the currently used sector of the second access point Under condition, firstly, first access point can obtain the website that second access point will be communicated in the following way MAC Address and used sector information between corresponding relationship: if first access point is in second access point In coverage area, then the corresponding relationship notice message of the second access point periodic broadcast is received；If first access point Not in the coverage area of second access point, then to covering in first access point and second access point simultaneously Website within the scope of lid sends corresponding relationship request message, and receives the corresponding relationship response message of website return.It is described right It should be related to that notice message is specifically as follows beacon frame or customized frame.Then, first access point can be in the following way Obtain the MAC Address of the present communications website of second access point: if first access point is in second access point In coverage area, then control frame (RTS transmitted when interacting between the website that second access point communicates with is received Frame and/or CTS frame) or data frame；If first access point, can be to not in the coverage area of second access point The website in coverage area simultaneously in first access point and second access point sends MAC Address request message, Then the MAC Address response message of website return is received.In the website that acquisition second access point will be communicated The MAC of the present communications website of corresponding relationship and second access point between MAC Address and the information of used sector After location, first access point can be according to the MAC Address of website and the one-to-one relationship of the number of sector, described in determination The currently used sector of second access point.

Second situation: determine that described second connects by control frame or sector auxiliary information response message in first access point In the case where the currently used sector of access point, first access point can determine second access point in the following way Currently used sector: if first access point receives described second in the coverage area of second access point The control frame that the present communications website of access point or second access point is sent；If first access point is not described It, then can be to the coverage area for being in first access point and second access point simultaneously in the coverage area of two access points Interior website sends sector auxiliary information request message, and receives the sector auxiliary information response message of website return, the control frame and The sector auxiliary information response message includes the number or main lobe direction information of the currently used sector of the second access point.

Further, before data communications task starts, priority can be set for each access point, wherein access The priority of basic service set where the priority of point corresponds to it, the setting of the priority of access point are by setting basic clothes What the priority of business collection was realized.It should be noted that the purpose of setting priority is to provide that an access point should be according to institute There is its currently used sector of high access point of priority ratio to adjust the sector of itself, and cannot be lower than it according to priority The currently used sector of access point adjusts the sector of itself, adjacent access point can be prevented current according to other side mutually in this way Used sector adjusts the sector of itself and interferes.

Priority level initializing is suitable for the case where more than two adjacency of access points.Adjacency of access points with three or more is Example, first access point are an access point, and second access point is multiple accesses with first adjacency of access points Point, then it is current to obtain the higher each access point of the first access point described in priority ratio in the second access point for first access point The information of used sector determines in second access point priority ratio from each of height according to acquired information The currently used sector of access point.

12, first access point determines that itself will currently make according to the currently used sector of the second access point Sector is preset so that the interference between the sector and the currently used sector of the second access point that determine is less than Value.

Interference between sector refers to the beam communication that an access point carries out in a sector with website and another Interference of the access point between the beam communication carried out in another sector with another website.Using identical between different sectors Frequency carry out simultaneously when communicating, if there is overlapping between sector, the interference of sector may very greatly, if sector is not overlapped, Interference can be reduced.In the present invention, purpose to be achieved is exactly Communication Jamming between same frequency access point at least below sector There is interference when overlapping, moreover, the relative difference of the orientation angle of main lobe direction is bigger between non-overlapping sector, between sector Interference it is smaller.Wherein, the relative difference of the orientation angle is equal to the angle of the orientation angle of main lobe direction between sector How the degree at the supplementary angle of degree or angle specifically determines the relative difference of the orientation angle, hereinafter will be in conjunction with attached drawing It is described in detail.If the relative difference of the orientation angle of the main lobe direction between non-overlapping sector is sufficiently large, sector it Between the interference interference that is significantly less than sector when having overlapping.In practice, according to the difference of application scenarios, preset value it is big It is small to be decided according to the actual requirements.In embodiments of the present invention, such as the main lobe direction of two sectors can be mutually directed toward When corresponding interference value be set as preset value, in another example, it is corresponding dry when the main lobe direction of sector can be mutually directed toward The certain percentage for disturbing value is set as preset value, and 85% of the interference value as corresponding to when sector is completely overlapped or 60% etc..? In the remaining part of this specification, the small interference referred between sector of the interference is less than preset value, moreover, in access point Sector divide and determine after, interfere small number to combine between the sector of neighboring access point and just have determined.

With reference to the accompanying drawing to the relative difference of the orientation angle of the interference between sector and the main lobe direction between sector It is illustrated.Assuming that the main lobe direction of access point sector is fixed several directions, such as can be as shown in Figure 2 A, it is fixed as eight The direction that a number consecutively is 1 to 8.As shown in Figure 2 B, if the second access point AP2 currently used sector (5) connects backwards to first Access point AP1, then the sector (1,2 or 8) in the first access point AP1 backwards to the second access point AP2 currently makes with the second access point AP2 Interference between sector (5) is small.As shown in Figure 2 C, it is connect if the second access point AP2 currently used sector (1) is directed toward first Access point AP1, then the sector (1,2 or 8) in the first access point AP1 backwards to the second access point AP2 currently makes with the second access point AP2 Interference between sector (1) is small.Second access point AP2 currently used sector is also to be directed to the first access backwards actually Point AP1, can be determined as follows: draw a ray from the second access point AP2 to the first access point AP1, if second connects The angle of the main lobe direction of access point AP2 currently used sector and the ray is greater than 90 degree, then judges that the second access point AP2 works as The preceding sector used is backwards to the first access point AP1；If the main lobe direction of the second access point AP2 currently used sector is penetrated with described The angle of line then judges that the first access point AP1 is directed toward in the currently used sector the second access point AP2 less than 90 degree.

Determine the currently used sector the second access point AP2 be after be also directed to the first access point AP1, can be with The orientation angle of the main lobe direction between the first access point AP1 and the sector of the second access point AP2 is calculated in the following way Relative difference.As shown in Figure 2 B, the second access point AP2 currently used sector number is 5, backwards to the first access point AP1.First Access point AP1 can choose the sector that number is 1,2 or 8.At this point, degree (the model of the angle of two sector main lobe directions of selection 0 degree is trapped among to 180 degree, including 0 degree and 180 degree) relative difference as orientation angle between sector.For example, number is 1 and 5 The angle of main lobe direction of sector be 180 degree, the angle of the main lobe direction for the sector that number is 2 and 5 is 135 degree, number 8 Angle with the main lobe direction of 5 sector is 135 degree.If as it can be seen that the first access point AP1 select number for 1 sector, first The relative difference of main lobe direction orientation angle between access point AP1 and the sector of the second access point AP2 is maximum, is 180 degree.

As shown in Figure 2 C, the second access point AP2 currently used sector number is 1, is directed toward the first access point AP1.First Access point AP1 can choose the sector that number is 1,2 or 8.At this point, the degree at the supplementary angle of the angle of two sector main lobe directions of selection Relative difference of the number (range at 0 degree to 180 degree, including 0 degree and 180 degree) as orientation angle between sector.Number is 1 and 1 The angle of main lobe direction of sector be 0 degree, the supplementary angle of angle is 180 degree；The folder of the main lobe direction for the sector that number is 2 and 1 Angle is 45 degree, and the supplementary angle of angle is 135 degree；The angle of the main lobe direction for the sector that number is 8 and 1 is 45 degree, the supplementary angle of angle It is 135 degree.As it can be seen that if the first access point AP1 selects to number the sector for 1, the first access point AP1 and the second access point AP2 Sector between main lobe direction orientation angle relative difference it is maximum, be 180 degree.

It is not fixed several directions if the direction of access point sector can be adjusted flexibly, then the small threshold value of sector interference Such as it can be set to 90 degree, that is, the sector of the first access point and the sector of the second access point meet the small main lobe direction of interference Minimum 90 degree of relative difference of orientation angle.At this point, the relative difference of the orientation angle of the main lobe direction between sector Determine that the case where method is with several directions that the main lobe direction of above-mentioned access point sector is fixation is identical.

It is multiple if it exists that there is communication task and meet small with the currently used sector interference of the second access point Sector, then first access point can be selected therefrom and the smallest fan of the currently used sector interference of the second access point Area, as itself current sector to be used.If described minimum with the currently used sector interference of second access point Sector in there are multiple websites that can be communicated with first access point, then first access point can be from multiple The website in select communication task highest priority website, as the website communicated with.

Further, in the sector with communication task, first access point can choose the duration once communicated No more than the sector for the duration that second access point once communicates, as itself current sector to be used.Described first connects Access point can obtain the communication time of second access point from second access point, can also be by accessing with described second The communication time of second access point described in the station for acquiring of point communication.For example, if in the sector of first access point exist with It is respectively AP1.Sector1, AP1.Sector2 or AP1.Sector3 that second access point, which interferes small sector, and described first The communication time of access point and the communication time of site STA 11, first access point and site STA 12 is all not more than described The communication time of two access points and its website, then first access point can choose number AP1.Sector1 and Sector corresponding to AP1.Sector2.At this point, first access point can choose the higher site STA 12 of service priority Corresponding sector AP1.Sector2 is as itself current sector to be used.In addition, passing through the size for obtaining data packet and leading to Believe rate, can equally calculate communication time using the two.

In tool there are three in the case where above adjacency of access points, the first access point can be an access point, and second connects Access point can be a group of access point that priority is higher than first access point.For example, second access point includes the Three access points and priority are higher than the 4th access point of the third access point.It should be pointed out that in first access point Before determining itself current sector to be used, the currently used sector of third access point meets and the 4th access point The small condition of currently used sector interference, the third access point communicate with the communication time of website no more than described the Four access points communicate with the communication time of website.In this way, first access point is determining itself current sector to be used When, identified sector should meet and the third access point and the currently used sector of the 4th access point simultaneously Between interference it is small, the communication time that first access point communicates with website should meet simultaneously to be connect no more than the third Access point communicates with the communication time of website and the 4th access point communicates with the communication time of website, wherein determines Method it is identical as in the case where two adjacency of access points, details are not described herein.In this way, when neighboring access point is expanded to from two At three or more, the method for combined dispatching provided in this embodiment can be equally applicable in.

13, first access point is communicated using the determining sector with website.

After first access point determines itself current sector to be used, first access point is in the determination Website associated with it is communicated on sector.At the same time, second access point also on its currently used sector with Associated website is communicated.Since first access point is according to the currently used sector tune of second access point Whole sector, therefore, the interference of sector and the currently used sector of the second access point that first access point determines It is small, in this way, first access point and second access point can communicate simultaneously and also interfere it is smaller, to reach spatial division multiplexing Effect improves communication efficiency.

In the present embodiment, the method for combined dispatching is applied to the occasion of wireless LAN communication.First access point is in determination Behind the currently used sector of second access point, keep out of the way there is no selection to avoid interfering, but according to second access point Currently used sector, the determining and lesser sector of the currently used sector interference of the second access point, and utilize institute Determining sector is communicated.In this way, proper due to dispatching, the sector and described second that first access point determines is connect The currently used sector of access point can not only communicate simultaneously but also interfere small.Two adjacent accesses in compared with the existing technology For point when RTS/CTS mechanism is closed, the sector of respectively oriented communication causes the interference between the sector big because scheduling is improper, Or when RTS/CTS mechanism is opened, access point selects to avoid due to listening to neighbouring access point and communicating, so that phase It can not be communicated simultaneously between adjacent access point, the method for combined dispatching provided in an embodiment of the present invention can ensure adjacent Access point can be communicated simultaneously and be interfered small.

For a better understanding of the invention, above-mentioned two situations are carried out specifically respectively with several specific embodiments again below It is bright.It is also noted that it is set forth below for embodiment be a part of the embodiments of the present invention, those skilled in the art are by the present invention The content can be easy to expect other embodiments, they are within.

Fig. 3 is the flow chart of a specific embodiment of the method for combined dispatching of the present invention, as shown in figure 3, the present invention is specific The method of combined dispatching that embodiment provides includes:

31, the first access point obtains the priority of itself and the second access point, and knows the preferential of second access point Grade is higher than the priority of itself.

In the present embodiment, first access point is specifically as follows an access point, and second access point specifically may be used Think another access point, wherein second access point is communicated using identical frequency with first access point, And the coverage area of the two has overlapping.

Before data communications task starts, the priority of access point is just had determined.First access point can lead to The priority that access controller (Access Controller, AC) obtains itself and the second access point is crossed, it can also be by comparing The parameter that access point influences priority level initializing between each other judges the height relationship of priority between described access point.The parameter It can be for example the number etc. of the website in access point coverage area.In the present embodiment, first access point is set Priority be lower than second access point.Second access point can be obtained by ordering the same mode with first access Know that the priority of itself is higher than first access point.

32, if first access point, in the coverage area of second access point, first access point receives The corresponding relationship notice message of the second access point periodic broadcast includes described second in the corresponding relationship notice message Corresponding relationship between the MAC Address for the website that access point will be communicated and the information of sector.

If first access point, in the coverage area of second access point, first access point can be direct Receive the message that second access point is sent.Know that the priority of second access point is higher than certainly in first access point After the priority of body, the corresponding relationship notice that first access point can receive the second access point periodic broadcast disappears Breath, wherein the corresponding relationship notice message can be broadcasted in a manner of beacon frame, customized frame etc., the corresponding relationship The MAC Address for the website that will be communicated in notice message comprising second access point and the letter of the used sector of the website Corresponding relationship between breath, that is, one-to-one relationship between the MAC Address of website and the number of sector.

Second access point can be in a manner of broadcast beacon frame (i.e. beacon broadcast), peripherad access point and station Point carries out periodic broadcast, wherein the information that the beacon frame includes is: within next a period of time, described second is connect Access point will be communicated with which website respectively with the sector of which number, i.e., the MAC of the number of the described sector and website Corresponding relationship between location.That is, second access point can be notified by a beacon frame to neighbouring access point or website Its one or many downlink communication task and its corresponding sector correspondingly can be with the one-to-one sector of the website Be it is identical, be also possible to different.First access point can directly receive the beacon frame, it is then possible to according to institute Received beacon frame determines between the number of sector and the MAC Address of website that second access point will be communicated Corresponding relationship.

For example, as shown in Figure 4 A, corresponding three stations of the MAC Address that the beacon frame of the second access point AP2 broadcast includes Point STA21, STA22 and STA23, the number of the corresponding sector of three websites can be respectively AP2.Sector1, AP2.Sector2 and AP2.Sector3.The number of the corresponding sector of certain three websites can also be identical.First access point AP1 After receiving the beacon frame, it can determine that sector AP2.Sector1 corresponds to site STA 21, the corresponding station sector AP2.Sector2 Point STA22, sector AP2.Sector3 correspond to site STA 23.

Further, if first access point is not in the coverage area of second access point, described first is connect Access point cannot directly receive the corresponding relationship notice message from second access point, and can be to simultaneously in described first Website in the coverage area of access point and second access point sends corresponding relationship request message, to request described second to connect Corresponding relationship between the MAC Address for the website that access point will be communicated and the information of sector；It is described while in described the Website in the coverage area of one access point and second access point, can after receiving the corresponding relationship request message To return to the corresponding relationship response message for being directed to the corresponding relationship request message, the corresponding relationship response message includes The corresponding relationship.It should be noted that covering model that is described while being in first access point and second access point Website in enclosing can be and the communicating website of the second access point, or not with second access point communication Website.Website in described while coverage area in first access point and second access point can be by connecing It receives the corresponding relationship notice message of the second access point broadcast and knows the corresponding relationship.Certainly, described at the same be in institute State website the asking it is also not necessary to first access point in the coverage area of the first access point and second access point Triggering is asked, and directly transmits the message comprising the corresponding relationship and is received by first access point.The corresponding pass It is that request message and the corresponding relationship response message can be sent in the form of management frame or customized frame.Described first Access point can determine the corresponding relationship after receiving the corresponding relationship response message.

33, if first access point, in the coverage area of second access point, first access point receives Perhaps the present communications website of data frame or reception second access point is sent the control frame that second access point is sent Control frame or data frame, present communications website in the control frame and the data frame comprising second access point MAC Address.

The control frame can be RTS frame and/or CTS frame, and the data frame is to be led between access point and website The data DATA frame sent when letter.If first access point is in the coverage area of second access point, described first Access point is knowing the corresponding pass between the number of sector and the MAC Address of website that second access point will be communicated After system, the control frame that second access point is sent can be directly received, working as second access point can also be directly received The control frame that preceding communication site is sent includes the MAC Address of the second access point present communications website in the control frame.Separately Outside, for second access point when the website communicated with is communicated, the website that Xiang Suoshu is communicated with sends data frame.Institute The first access point is stated after receiving the data frame, can therefrom determine the second access point present communications website MAC Address.In addition, first access point can receive to be sent out with the website of second access point communication in uplink communication The data frame sent can determine the MAC Address of the second access point present communications website according to the data frame.

Further, if first access point is not in the coverage area of second access point, described first is connect Website of the access point into the coverage area simultaneously in first access point and second access point sends MAC Address request Message, to request the MAC Address of the second access point present communications website；It is described at the same be in first access point and institute The website in the coverage area of the second access point is stated after receiving the MAC Address request message, a needle can be returned To the MAC Address response message of the MAC Address request message, the MAC Address response message includes second access point Present communications website MAC Address.It should be noted that it is described at the same in first access point and it is described second access Website in the coverage area of point is by receiving the control frame of the second access point transmission perhaps data frame or reception institute State the second access point present communications website send control frame or data frame and know second access point it is current lead to Believe the MAC Address of website.The MAC Address request message and the MAC Address response message with management frame or can be made by oneself The mode of adopted frame is sent.First access point can determine that described second connects after receiving the MAC Address response message The MAC Address of access point present communications website.

34, first access point is corresponding with the MAC Address of website according to the number of the sector of second access point The MAC Address of relationship, the website determines the number of the currently used sector of the second access point.

When obtaining second access point will be communicated the information of the MAC Address of used website and sector it Between corresponding relationship and second access point present communications website MAC Address after, first access point can root According to the MAC Address of website and the one-to-one relationship of the number of sector, the currently used sector of the second access point is determined.

For example, the second access point AP2 carries out the interaction of RTS/CTS frame with site STA 21 first, if the first access point AP1 is in the coverage area of the second access point AP2 or site STA 21, then the first access point AP1 can receive the RTS/CTS Frame and determine therefrom that with the MAC Address of the second access point AP2 site STA 21 communicated.First access point is according to pre- The beacon frame first obtained, the number of the MAC Address and sector of knowing the website that second access point will be communicated is one by one Corresponding relationship.As shown in Figure 4 A, since sector AP2.Sector1 corresponds to site STA 21, the first access point AP1 is true Determine after being site STA 21 with the second access point AP2 website communicated, can determine that the second access point AP2 is current Used sector is sector AP2.Sector1.After the communication of the second access point AP2 and site STA 21 is completed, if second Access point AP2 and site STA 22 carry out the interaction of RTS/CTS frame, and the first access point AP1 equally can receive the RTS/CTS Frame simultaneously determines therefrom that the MAC Address communicated with the site STA 22 of the second access point AP2.Due to having known sector in advance AP2.Sector2 corresponds to site STA 22, and therefore, the first access point AP1 can determine in the second access point AP2 and site STA 22 When being communicated, the second currently used sector access point AP2 is sector AP2.Sector2.

35, first access point determines that itself will currently be used according to the currently used sector of the second access point Sector.

First access point can choose therewith after the number for knowing the currently used sector of the second access point Corresponding sector number, so that between selected number corresponding sector and the currently used sector of the second access point Interference is minimum.First access point can be in interfering the smallest sector, and further selection selects communication task priority most High website is as the website communicated with.In addition, first access point can select in the sector there are communication task Communication time is no more than the communication time of the currently used sector of the second access point as itself current fan to be used Area, preferably two communication times differ minimum.

It is illustrated with reference to the accompanying drawing, in Figure 4 A, the first access point AP1 is according to the sector of the second access point AP2 Information selects downlink communication sector, and the corresponding communication time of website selected by the first access point AP1 is T1, the second access point AP2 Corresponding communication time is T21 within the period of the same sector beam communication, when communication time T1 should be no more than communication Long T21.This is because the working method of access point is semiduplex, if communication time T1 is greater than communication time T21 (referring to figure 4B), it will lead to the first access point AP1 transmission data packet to be not over and miss under the new round for receiving the second access point AP2 The sector auxiliary information of row communication；Moreover, because the second access point AP2 of the first access point of priority ratio AP1 high will not be according to first The information of the currently used sector access point AP1 carries out sector adjustment, may result in the new round downlink of the second access point AP2 Big interference is generated between the sector of communication and the first currently used sector access point AP1.It can be seen that by described in regulation The communication time of the selected website of first access point is not more than the communication time of the selected website of the second access point, can To ensure that first access point will not miss the sector auxiliary information of the new round downlink communication of second access point, can also keep away Exempt to generate between the currently used sector of first access point and the sector of the second access point new round downlink communication dry It disturbs.

36, first access point is communicated using the determining sector with website.

First access point is small with the sector interference according to the currently used sector determination of second access point Sector after, communicated on the sector of the determination with its website that will be communicated.At the same time, it described second connects Access point is also communicated on its currently used sector with communication site.In this way, first access point and described second connects Access point can be communicated simultaneously and be interfered smaller.

In the present embodiment, the method for combined dispatching is applied to the occasion of wireless LAN communication.First access point is obtaining To after the information of the currently used sector of the second access point, keep out of the way there is no selection to avoid interfering, but according to described The information of the currently used sector of two access points, determination are lesser with the currently used sector interference of the second access point Sector, and communicated using identified sector.In this way, the fan that first access point determine proper due to dispatching Area and the currently used sector of the second access point, which can not only communicate simultaneously but also interfere, is less than preset value.

Fig. 5 is the flow chart of a specific embodiment of the method for combined dispatching of the present invention, as shown in figure 5, the present invention is specific The method of combined dispatching that embodiment provides includes:

51, the first access point obtains the priority of itself and the second access point, and knows the preferential of second access point Grade is higher than the priority of itself.

In the present embodiment, first access point is specifically as follows an access point, and second access point specifically may be used Think another access point or a group of access point other than first access point, wherein second access point and institute It states the first access point to be communicated using identical frequency, and the coverage area of the two has overlapping.

Before data communications task starts, the priority of access point is just had determined.It is one in second access point In the case where a access point, first access point knows that the priority of second access point is higher than the priority of itself, institute It states the second access point and knows that the first access point priority is lower than the priority of itself, the mode known is identical as step 31, Details are not described herein.

In the case where second access point is a group of access point that priority is higher than first access point, described the Two access points may include the 4th access point that third access point and priority are higher than the third access point.First access Point knows that the priority of third access point and the 4th access point is higher than itself.The third access point knows first access point Priority be lower than itself, know the 4th access point priority be higher than itself.4th access point knows described The priority of one access point and the third access point is lower than itself.

52, if first access point, in the coverage area of second access point, first access point receives The control frame that the present communications website of second access point or second access point is sent includes institute in the control frame State the information of the currently used sector of the second access point.

In the case where two adjacency of access points, if first access point is in the coverage area of second access point Interior, then first access point can directly connect after the priority that the priority for knowing second access point is higher than itself It receives the website that second access point communicates with and sends RTS frame and/or CTS frame in interactive process, according to the RTS frame And/or CTS frame, determine the number of the currently used sector of the second access point.

If first access point is not in the coverage area of second access point, first access point is being known It, can be to simultaneously in first access point and described the after the priority of second access point is higher than itself priority Website in the coverage area of two access points sends sector auxiliary information request message, to request second access point currently used The information of sector；Website in described while coverage area in first access point and second access point is receiving To after the sector auxiliary information request message, a sector auxiliary information for the sector auxiliary information request message can be returned and responded Message, the sector auxiliary information response message include the information of the currently used sector of the second access point.It needs to illustrate It is that the website in described while coverage area in first access point and second access point is by described in reception Control frame that second access point is sent and the information for knowing the currently used sector of the second access point.The sector letter Breath request message and the sector auxiliary information response message can be sent in the form of management frame or customized frame.Described first Access point determines the currently used sector of the second access point according to the received sector auxiliary information response message of institute.

In the case where three or more adjacency of access points, first access point is it needs to be determined that priority is higher than itself The currently used sector of second access point.In second access point, the low access point of priority (such as described third Access point) it needs to be determined that priority ratio from all access points (such as described 4th access point) currently used sector of height.

53, first access point is according to the number or main lobe direction of the currently used sector of the second access point, really Itself fixed current sector to be used.

First access point can choose therewith after the number for knowing the currently used sector of the second access point Corresponding sector number, so that between selected number corresponding sector and the currently used sector of the second access point Interference is minimum.First access point can be in interfering the smallest sector, and further selection selects communication task priority most High website is as the website communicated with.In addition, first access point can select in the sector there are communication task Communication time is no more than the communication time of the currently used sector of the second access point as itself current fan to be used Area, preferably two communication times differ minimum.Further, in the case where three or more adjacency of access points, According to it is above-mentioned like that, the low access point of priority adjusts itself according to the currently used sector of the high access point of priority Sector.

54, first access point is communicated using the determining sector with website.

Corresponding with a kind of method of combined dispatching provided in an embodiment of the present invention, the embodiment of the present invention also provides a kind of Close the device of scheduling.As shown in fig. 6, a kind of device 61 of combined dispatching provided in an embodiment of the present invention includes:

Acquiring unit 611, for obtaining the information of the currently used sector of the second access point；

Determination unit 612, the information for being obtained according to the acquiring unit determine that second access point is current Used sector, wherein second access point is overlapping to have with the device of the combined dispatching together frequency and coverage area Access point；

The determination unit 612 is also used to determine that itself is current according to the currently used sector of the second access point Sector to be used, so that the interference between the sector and the currently used sector of the second access point that determine is less than Preset value；

Communication unit 613, for being communicated using the determining sector with website.

Optionally, the information of the currently used sector of the second access point includes: the current institute of second access point Use the number or main lobe direction of sector.

In the present embodiment, the device of combined dispatching is applied to the occasion of wireless LAN communication.The dress of the combined dispatching It sets after the information for getting the currently used sector of the second access point, keeps out of the way there is no selection to avoid interfering, but root It is determining dry with the currently used sector of the second access point according to the information of the currently used sector of the second access point Lesser sector is disturbed, and is communicated using identified sector.In this way, due to dispatching proper, the device of the combined dispatching The determining sector and the currently used sector of the second access point, which can not only communicate simultaneously but also interfere, to be less than in advance If value.

In another embodiment of the invention, optionally, acquiring unit 611 includes:

First obtains module 6111, is specifically used for: obtaining the medium access of the present communications website of second access point Control MAC Address；

Second obtain module 6112, be specifically used for: according to it is described first obtain module 6111 obtain the MAC Address and Corresponding relationship between the information of the MAC Address and sector that obtain in advance obtains the currently used fan of the second access point The information in area.

Optionally, the first acquisition module 6111 is specifically used for: if the device 61 of combined dispatching is in second access point In coverage area, then the first acquisition module 6111 receives control frame or data frame that second access point is sent, or receives The control frame or data frame that the present communications website of second access point is sent include in the control frame and the data frame The MAC Address of the present communications website of second access point；Alternatively, if the device 61 of combined dispatching is not in second access In the coverage area of point, then first module 6111 is obtained to the device 61 and second access point for being in combined dispatching simultaneously Website in coverage area sends MAC Address request message, and receives second access point described in while in joint The MAC Address response message that website in the coverage area of the device 61 of scheduling and second access point returns, the MAC Location response message includes the MAC Address of the present communications website of second access point.

Optionally, the second acquisition module 6112 is specifically used for: if the device 61 of combined dispatching is in second access point In coverage area, then the second acquisition module 6112 receives the corresponding relationship notice message of the second access point periodic broadcast, Comprising the corresponding relationship between the MAC Address and the information of sector in the corresponding relationship notice message, according to described first The MAC Address and the corresponding relationship notice message that module 6111 obtains are obtained, the current institute of the second access point is obtained The information of the sector used；Alternatively, if the device 61 of combined dispatching not in the coverage area of second access point, second Website of the module 6112 into the coverage area of device 61 and second access point simultaneously in combined dispatching is obtained to send Corresponding relationship request message, and receive second access point and pass through the device 61 for being in combined dispatching simultaneously and described the The corresponding relationship response message that website in the coverage area of two access points returns, the corresponding relationship response message include described Corresponding relationship between MAC Address and the information of sector obtains the MAC Address and described that module obtains according to described first Corresponding relationship response message obtains the information of the currently used sector of the second access point.

In one more embodiment of the present invention, optionally, acquiring unit 611 is specifically used for: if the device 61 of combined dispatching In the coverage area of second access point, then acquiring unit 611 receives second access point or second access The control frame that the present communications website of point is sent, comprising the currently used sector of the second access point in the control frame Information；Alternatively, acquiring unit 611 is to same if the device 61 of combined dispatching is not in the coverage area of second access point When device 61 and second access point in combined dispatching coverage area in website send sector auxiliary information request message, And it receives second access point and passes through the covering model of device 61 and second access point described while in combined dispatching The sector auxiliary information response message that website in enclosing returns, the sector auxiliary information response message include the current institute of second access point The information of the sector used.

In another embodiment of the present invention, optionally, the control frame is RTS frame and/or CTS frame.

Optionally, acquiring unit 611 is also used to: obtaining the currently used sector of the second access point in acquiring unit 611 Information before, obtain the device 61 of combined dispatching and the priority of second access point；Acquiring unit 611 is specifically used for: In the priority for the device 61 that the priority of second access point is higher than combined dispatching, it is current to obtain second access point The information of used sector.

Optionally, second access point is with the device 61 of combined dispatching with frequency and coverage area has overlapping multiple connect Access point, acquiring unit 611 are specifically used for: the device 61 for obtaining priority ratio combined dispatching in second access point is higher each The information of a currently used sector of access point.The determination unit is specifically used for: the institute according to acquired in acquiring unit 611 The information of the higher each currently used sector of access point of device 61 of priority ratio combined dispatching in the second access point is stated, Determine the higher each currently used sector of access point of the device 61 of priority ratio combined dispatching in second access point； According to the higher each currently used sector of access point of the device 61 of priority ratio combined dispatching in second access point, Determine itself current sector to be used so that the sector and each currently used sector of access point that determine it Between interference be less than preset value.

Optionally, the determination unit is specifically used for: selection and second access from the sector with communication task The currently used sector of point is non-overlapping and the relative difference of main lobe direction orientation angle is not less than the sector of threshold value, as joint The current sector to be used of the device 61 of scheduling.

Optionally it is determined that unit 612 is specifically used for: if in sector of the device 61 with communication task of combined dispatching, There are multiple non-overlapping with the currently used sector of the second access point and main lobe direction orientation angle relative difference is not Less than the sector of threshold value, it is determined that unit 612 selects main lobe direction orientation angle and described second from multiple sectors The maximum sector of relative difference of the main lobe direction orientation angle of the currently used sector of access point, the dress as combined dispatching Set 61 current sectors to be used.

Optionally it is determined that unit 612 is specifically used for: if in sector of the device 61 with communication task of combined dispatching, There are multiple non-overlapping with the currently used sector of the second access point and main lobe direction orientation angle relative difference is not Less than the sector of threshold value, it is determined that unit 612 selects communication time no more than second access from multiple sectors The sector of the communication time of the currently used sector of point, the current sector to be used of device 61 as combined dispatching.

Optionally it is determined that unit 612 is also used to: if current in the main lobe direction orientation angle and second access point In the maximum sector of relative difference of the main lobe direction orientation angle of used sector, there are multiple stations with communication task Point, it is determined that the website that unit 612 selects the website of communication task highest priority to communicate as the device 61 with combined dispatching.

Corresponding with a kind of method and apparatus of combined dispatching provided in an embodiment of the present invention, the embodiment of the present invention also provides A kind of access point.As shown in fig. 7, a kind of access point 71 provided in an embodiment of the present invention includes:

Transceiver 711, for obtaining the information of the currently used sector of the second access point；

Processor 712, the information for being obtained according to the transceiver determine that second access point is currently made Sector, wherein second access point is with the same frequency of described access point and coverage area has overlapping access point；

The processor 712 is also used to determine that itself is currently wanted according to the currently used sector of the second access point The sector used, so that the interference between the sector and the currently used sector of the second access point that determine is less than in advance If value；

The transceiver 711 is also used to be communicated using the determining sector with website.

In the present embodiment, access point is applied to the occasion of wireless LAN communication.Described access point connects getting second After the information of the currently used sector of access point, keep out of the way there is no selection to avoid interfering, but according to second access point The information of currently used sector, the determining and lesser sector of the currently used sector interference of the second access point, and It is communicated using identified sector.In this way, the sector and described second that described access point determine proper due to dispatching The currently used sector of access point, which can not only communicate simultaneously but also interfere, is less than preset value.

In another embodiment of the invention, optionally, transceiver 711 is specifically used for: obtaining second access point The medium access control MAC Address of present communications website；The MAC Address that obtains according to the MAC Address and in advance and sector Corresponding relationship between information obtains the information of the currently used sector of the second access point.

Optionally, transceiver 711 is in the medium access for the present communications website for obtaining second access point When controlling MAC Address, it is specifically used for: if access point 71, in the coverage area of second access point, transceiver 711 receives The control frame or data frame that second access point is sent, or receive the present communications website transmission of second access point The MAC of present communications website in control frame or data frame, the control frame and the data frame comprising second access point Address；If access point 71, not in the coverage area of second access point, transceiver 711 is to simultaneously in 71 He of access point Website in the coverage area of second access point sends MAC Address request message, and receives second access point and pass through The MAC Address response message that website in described while coverage area in access point 71 and second access point returns, The MAC Address response message includes the MAC Address of the present communications website of second access point.

Optionally, transceiver 711 is for the MAC Address obtained according to the MAC Address and in advance and sector Corresponding relationship between information is specifically used for when obtaining the information of the currently used sector of the second access point: if access Point 71 is in the coverage area of second access point, then transceiver 711 receives pair of the second access point periodic broadcast It should be related to notice message, include the corresponding pass between the MAC Address and the information of sector in the corresponding relationship notice message System obtains the currently used sector of the second access point according to the MAC Address and the corresponding relationship notice message Information；If access point 71, not in the coverage area of second access point, transceiver 711 is to simultaneously in 71 He of access point Website in the coverage area of second access point sends corresponding relationship request message, and receives second access point and pass through The corresponding relationship response message that website in described while coverage area in access point 71 and second access point returns, The corresponding relationship response message includes the corresponding relationship between the MAC Address and the information of sector, according to the MAC Address With the corresponding relationship response message, the information of the currently used sector of the second access point is obtained.

In one more embodiment of the present invention, optionally, transceiver 711 is specifically used for: if access point 71 is described second In the coverage area of access point, then transceiver 711 receives the present communications of second access point or second access point The control frame that website is sent includes the information of the currently used sector of the second access point in the control frame；If access Point is not 71 in the coverage area of second access point, then transceiver 711 in access point 71 and described second to connecing simultaneously Website in the coverage area of access point sends sector auxiliary information request message, and receives second access point described in while locating In the sector auxiliary information response message that the website in the coverage area of access point 71 and second access point returns, the sector letter Cease the information that response message includes the currently used sector of the second access point.

Optionally, transceiver 711 is also used to: obtaining the letter of the currently used sector of the second access point in transceiver 711 Before breath, the priority of access point 71 and second access point is obtained.Transceiver 711 is specifically used for: in second access When the priority of point is higher than the priority of access point 71, the information of the currently used sector of the second access point is obtained.

Optionally, second access point is with the same frequency of access point 71 and coverage area has overlapping multiple access points, is received Hair device 711 is specifically used for: it is currently used to obtain the higher each access point of priority ratio access point in second access point Sector information.Processor 712 is specifically used for: priority ratio in second access point according to acquired in transceiver 711 The information of the higher each currently used sector of access point of access point 71, determines that priority ratio connects in second access point The higher each currently used sector of access point of access point 71；More according to priority ratio access point 71 in second access point The high currently used sector of each access point determines itself current sector to be used so that the sector determined with Interference between the currently used sector of each access point is less than preset value.

Optionally, processor 712 is specifically used for: selecting to work as with second access point from the sector with communication task Sector is non-overlapping used in preceding and the relative difference of main lobe direction orientation angle is not less than the sector of threshold value, as access point 71 Current sector to be used.

Optionally, processor 712 is specifically used for: if access point 71 have communication task sector in, there are it is multiple with The currently used sector of second access point is non-overlapping and the relative difference of main lobe direction orientation angle is not less than threshold value Sector, then processor 712 selects main lobe direction orientation angle and the current institute of second access point from multiple sectors The maximum sector of relative difference of the main lobe direction orientation angle of the sector used, as the current fan to be used of access point 71 Area.

Optionally, processor 712 is specifically used for: if access point 71 have communication task sector in, there are it is multiple with The currently used sector of second access point is non-overlapping and the relative difference of main lobe direction orientation angle is not less than threshold value Sector, then processor 712 selects communication time currently used no more than second access point from multiple sectors Sector communication time sector, as the current sector to be used of access point 71.

Optionally, processor 712 is also used to: if in the main lobe direction orientation angle and the current institute of second access point In the maximum sector of relative difference of the main lobe direction orientation angle of the sector used, there are multiple stations with communication task Point, then processor 712 selects the website of communication task highest priority as the website communicated with access point 71.

Each embodiment in this specification has to be described with stressing, same and similar portion between each embodiment Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device reality For applying example, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to embodiment of the method Part explanation.

It should be noted that the apparatus embodiments described above are merely exemplary, wherein described be used as separation unit The unit of explanation may or may not be physically separated, and component shown as a unit can be or can also be with It is not physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to actual It needs that some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.In addition, device provided by the invention In embodiment attached drawing, the connection relationship between module indicate between them have communication connection, specifically can be implemented as one or A plurality of communication bus or signal wire.Those of ordinary skill in the art are without creative efforts, it can understand And implement.

It will be recognized by those of ordinary skill in the art that the possibility implementation of various aspects of the invention or various aspects It can be embodied as system, method or computer program product.Therefore, each aspect of the present invention or various aspects Possible implementation can use complete hardware embodiment, complete software embodiment (including firmware, resident software etc.), or The form of the embodiment of integration software and hardware aspect, collectively referred to herein as " circuit ", " module " or " system ".In addition, The possibility implementation of each aspect of the present invention or various aspects can use the form of computer program product, computer journey Sequence product refers to the computer readable program code of storage in computer-readable medium.

Computer-readable medium can be computer-readable signal media or computer readable storage medium.Computer can Read storage medium including but not limited to electronics, magnetism, optics, electromagnetism, infrared or semiconductor system, equipment perhaps device or It is above-mentioned any appropriately combined, such as random access memory (RAM), read-only memory (ROM), the read-only storage of erasable programmable Device (EPROM or flash memory), optical fiber, portable read-only memory (CD-ROM).

Processor in computer reads the computer readable program code of storage in computer-readable medium, so that place Reason device is able to carry out function action specified in the combination of each step or each step in flow charts；It generates and implements in block diagram Each piece or each piece of combination specified in function action device.

Computer readable program code can execute on the user's computer completely, part is held on the user's computer Row, as individual software package, part on the user's computer and part on the remote computer, or completely long-range It is executed on computer or server.It is also noted that in some alternative embodiments, each step or frame in flow charts Each piece of function of indicating may not be occurred by the sequence indicated in figure in figure.For example, depending on related function, show in succession Two steps or two blocks out may be actually executed substantially concurrently or these blocks sometimes may be by with opposite suitable Sequence executes.

The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.

Claims

1. a kind of method of combined dispatching characterized by comprising

First access point obtains the information of the currently used sector of the second access point, and first access point is according to the letter Breath, determines the currently used sector of the second access point, wherein second access point is same with first access point Frequency and coverage area have the access point of overlapping；

First access point determines itself current fan to be used according to the currently used sector of the second access point Area, so that the interference between the sector and the currently used sector of the second access point that determine is less than preset value；

First access point is communicated using the determining sector with its website.

2. the method according to claim 1, wherein first access point, which obtains the second access point, currently to be made The information of sector includes:

Corresponding pass between the MAC Address that first access point is obtained according to the MAC Address and in advance and the information of sector System obtains the information of the currently used sector of the second access point.

3. according to the method described in claim 2, it is characterized in that, first access point obtains working as second access point The medium access control MAC Address of preceding communication site includes:

If first access point, in the coverage area of second access point, first access point receives described second The control frame or data frame that access point is sent, or receive control frame that the present communications website of second access point is sent or The MAC Address of present communications website in data frame, the control frame and the data frame comprising second access point；

Alternatively, first access point is to same if first access point is not in the coverage area of second access point When the coverage area in first access point and second access point in website send MAC Address request message, and Second access point is received to pass through in described while coverage area in first access point and second access point Website return MAC Address response message, the MAC Address response message include second access point current communication site The MAC Address of point.

4. according to the method described in claim 2, it is characterized in that, first access point obtains the MAC Address and sector Information between corresponding relationship include:

If first access point, in the coverage area of second access point, first access point receives described second The corresponding relationship notice message of access point periodic broadcast includes the MAC Address and fan in the corresponding relationship notice message Corresponding relationship between the information in area；

Alternatively, first access point is to same if first access point is not in the coverage area of second access point When the coverage area in first access point and second access point in website send corresponding relationship request message, and Second access point is received to pass through in described while coverage area in first access point and second access point Website return corresponding relationship response message, the corresponding relationship response message include the MAC Address and sector information Between corresponding relationship.

5. the method according to claim 1, wherein first access point acquisition, second access point is current The information of used sector includes:

If first access point, in the coverage area of second access point, first access point receives described second The control frame that the present communications website of access point or second access point is sent is connect comprising described second in the control frame The information of the currently used sector of access point；

Alternatively, first access point is to same if first access point is not in the coverage area of second access point When the coverage area in first access point and second access point in website send sector auxiliary information request message, and Second access point is received to pass through in described while coverage area in first access point and second access point Website return sector auxiliary information response message, the sector auxiliary information response message include second access point it is currently used Sector information.

6. the method according to claim 3 or 5, which is characterized in that the control frame is for request transmission RTS frame and/or clearly Except transmission CTS frame.

7. the method according to claim 1, wherein the information of the currently used sector of the second access point It include: the number or main lobe direction of the currently used sector of the second access point.

8. the method according to claim 1, wherein obtaining the current institute of the second access point in first access point Before the information of the sector used, the method also includes:

First access point obtains the priority of itself and second access point；

When the priority of second access point is higher than the priority of first access point, first access point obtains institute State the information of the currently used sector of the second access point.

9. according to the method described in claim 8, it is characterized in that, second access point is with first access point with frequency And coverage area has multiple access points of overlapping, first access point obtains the letter of the currently used sector of the second access point Breath includes:

First access point obtains the higher each access point of the first access point described in priority ratio in second access point The information of currently used sector；

First access point determines that the first access point described in priority ratio is higher in second access point according to the information The currently used sector of each access point；

First access point determines itself current fan to be used according to the currently used sector of the second access point Area, so that the interference between the sector and the currently used sector of the second access point that determine is less than preset value, packet It includes:

The higher each access point of first access point, first access point according to priority ratio in second access point Currently used sector determines itself current sector to be used, so that the sector determined and each access point Interference between currently used sector is less than preset value.

10. according to the method described in claim 9, it is characterized in that, first access point is worked as according to second access point Sector used in preceding determines itself current sector to be used, so that the sector determined is worked as with second access point Interference used in preceding between sector includes: less than preset value

First access point selects and the currently used sector of the second access point from the sector with communication task Non-overlapping and main lobe direction orientation angle relative difference is not less than the sector of threshold value, as itself current sector to be used.

11. according to the method described in claim 10, it is characterized in that, first access point is from the sector with communication task Middle selection relative difference non-overlapping with the currently used sector of the second access point and main lobe direction orientation angle is not small In the sector of threshold value, include: as itself current sector to be used

If it is currently used with second access point that there are multiple in the sector that first access point has communication task Sector is non-overlapping and the relative difference of main lobe direction orientation angle is not less than the sector of threshold value, then first access point is from more The main lobe direction of main lobe direction orientation angle and the currently used sector of the second access point is selected in a sector The maximum sector of the relative difference of orientation angle, as itself current sector to be used.

12. according to the method described in claim 10, it is characterized in that, first access point is from the sector with communication task Middle selection relative difference non-overlapping with the currently used sector of the second access point and main lobe direction orientation angle is not small In the sector of threshold value, include: as itself current sector to be used

If it is currently used with second access point that there are multiple in the sector that first access point has communication task Sector is non-overlapping and the relative difference of main lobe direction orientation angle is not less than the sector of threshold value, then first access point is from more Select communication time no more than the fan of the communication time of the currently used sector of the second access point in a sector Area, as itself current sector to be used.

13. according to the method for claim 11, which is characterized in that in first access point from multiple sectors Select main lobe direction orientation angle opposite with the main lobe direction orientation angle of the currently used sector of the second access point The maximum sector of difference, after itself current sector to be used, the method also includes:

If the main lobe direction in the main lobe direction orientation angle Yu the currently used sector of the second access point is directed toward angle In the maximum sector of the relative difference of degree, there are multiple websites with communication task, then the first access point selection communications The highest website of task priority is as the website communicated with.

14. a kind of device of combined dispatching characterized by comprising

Determination unit, the information for being obtained according to the acquiring unit determine that second access point is currently used Sector, wherein second access point be with the device of the combined dispatching with frequency and coverage area have overlapping access point；

The determination unit is also used to determine that itself will currently be used according to the currently used sector of the second access point Sector so that the interference between the sector and the currently used sector of the second access point that determine be less than it is default Value；

15. device according to claim 14, which is characterized in that the acquiring unit includes:

First obtains module, is specifically used for: with obtaining the medium access control MAC of the present communications website of second access point Location；

Second obtains module, is specifically used for: the MAC Address that is obtained according to the first acquisition module and obtaining in advance Corresponding relationship between MAC Address and the information of sector obtains the information of the currently used sector of the second access point.

16. device according to claim 15, which is characterized in that the first acquisition module is specifically used for:

If the device of the combined dispatching, in the coverage area of second access point, described first, which obtains module, receives institute The control frame or data frame of the transmission of the second access point are stated, or receives the control that the present communications website of second access point is sent The MAC of present communications website in frame or data frame processed, the control frame and the data frame comprising second access point Location；

Alternatively, described first obtains mould if the device of the combined dispatching is not in the coverage area of second access point Website of the block into the coverage area of device and second access point simultaneously in the combined dispatching, which sends MAC Address, asks Message is sought, and receives second access point and passes through device and second access point described while in the combined dispatching Coverage area in website return MAC Address response message, the MAC Address response message include second access point Present communications website MAC Address.

17. device according to claim 15, which is characterized in that the second acquisition module is specifically used for:

If the device of the combined dispatching, in the coverage area of second access point, described second, which obtains module, receives institute State the corresponding relationship notice message of the second access point periodic broadcast, in the corresponding relationship notice message comprising the MAC Corresponding relationship between location and the information of sector obtains the MAC Address and the correspondence that module obtains according to described first Relationship notice message obtains the information of the currently used sector of the second access point；

Alternatively, described second obtains mould if the device of the combined dispatching is not in the coverage area of second access point Website of the block into the coverage area of device and second access point simultaneously in the combined dispatching sends corresponding relationship Request message, and receive second access point and pass through described while device in the combined dispatching and second access The corresponding relationship response message that website in the coverage area of point returns, the corresponding relationship response message is comprising the MAC Corresponding relationship between location and the information of sector obtains the MAC Address and the correspondence that module obtains according to described first Relationship response message obtains the information of the currently used sector of the second access point.

18. device according to claim 14, which is characterized in that the acquiring unit is specifically used for:

If the device of the combined dispatching, in the coverage area of second access point, the acquiring unit receives described the The control frame that the present communications website of two access points or second access point is sent includes described second in the control frame The information of the currently used sector of access point；

Alternatively, if the device of the combined dispatching not in the coverage area of second access point, the acquiring unit to The website in the coverage area of the device in the combined dispatching and second access point sends sector auxiliary information request simultaneously Message, and receive second access point and pass through device and second access point described while in the combined dispatching The sector auxiliary information response message that website in coverage area returns, the sector auxiliary information response message include second access point The information of currently used sector.

19. device described in 6 or 18 according to claim 1, which is characterized in that the control frame be request send RTS frame and/or Clear to send CTS frame.

20. device according to claim 14, which is characterized in that the letter of the currently used sector of the second access point Breath includes: the number or main lobe direction of the currently used sector of the second access point.

21. device according to claim 14, which is characterized in that the acquiring unit is also used to:

Before the information that the acquiring unit obtains the currently used sector of the second access point, the combined dispatching is obtained The priority of device and second access point；

The acquiring unit is specifically used for:

In the priority for the device that the priority of second access point is higher than the combined dispatching, the acquiring unit is obtained The information of the currently used sector of second access point.

22. device according to claim 21, which is characterized in that second access point is the dress with the combined dispatching It sets with frequency and coverage area has multiple access points of overlapping, the acquiring unit is specifically used for:

The higher each access point of device for obtaining combined dispatching described in priority ratio in second access point is currently used Sector information；

The determination unit is specifically used for:

The device of combined dispatching described in priority ratio is higher in second access point according to acquired in the acquiring unit The information of each currently used sector of access point, determines the dress of combined dispatching described in priority ratio in second access point Set the higher currently used sector of each access point；

It is currently used according to the higher each access point of the device of combined dispatching described in priority ratio in second access point Sector, itself current sector to be used is determined, so that the sector and each access point that determine are currently used Sector between interference be less than preset value.

23. device according to claim 22, which is characterized in that the determination unit is specifically used for:

And main lobe side non-overlapping with the currently used sector of the second access point is selected from the sector with communication task It is not less than the sector of threshold value to the relative difference of orientation angle, the current sector to be used of device as the combined dispatching.

24. device according to claim 23, which is characterized in that the determination unit is specifically used for:

If there are the multiple and current institutes of second access point in the sector that the device of the combined dispatching has communication task The sector used is non-overlapping and the relative difference of main lobe direction orientation angle is not less than the sector of threshold value, then the determination unit from The main lobe side of main lobe direction orientation angle and the currently used sector of the second access point is selected in multiple sectors To the maximum sector of relative difference of orientation angle, the current sector to be used of device as the combined dispatching.

25. device according to claim 23, which is characterized in that the determination unit is specifically used for:

If there are the multiple and current institutes of second access point in the sector that the device of the combined dispatching has communication task The sector used is non-overlapping and the relative difference of main lobe direction orientation angle is not less than the sector of threshold value, then the determination unit from Select communication time no more than the communication time of the currently used sector of the second access point in multiple sectors Sector, the current sector to be used of device as the combined dispatching.

26. device according to claim 24, which is characterized in that the determination unit is also used to:

If the main lobe direction in the main lobe direction orientation angle Yu the currently used sector of the second access point is directed toward angle In the maximum sector of the relative difference of degree, there are multiple websites with communication task, then the determination unit selection communication is appointed The website for highest priority of being engaged in is as the website communicated with the device of the combined dispatching.