CN104469959B

CN104469959B - A kind of channel arrangement method and system, access controller

Info

Publication number: CN104469959B
Application number: CN201310416374.7A
Authority: CN
Inventors: 庄宏成
Original assignee: Huawei Technologies Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2013-09-12
Filing date: 2013-09-12
Publication date: 2018-10-09
Anticipated expiration: 2033-09-12
Also published as: WO2015035927A1; CN104469959A

Abstract

The embodiment of the invention discloses a kind of channel arrangement method and system, access controllers.Present invention method includes：Access controller AC receives the business demand satisfaction that each access point AP of AC management is sent；AC judges whether to need to carry out channel optimization according to business demand satisfaction；If so, the estimation load according to all AP of AC management calculates each corresponding network performance index of channel configuration scheme in optional channel configuration scheme set；The channel configuration scheme for selecting network performance index optimal from channel configuration scheme set, the experience of the time variation and Cell Edge User of network service can be considered, it can effectively realize the time variation of network service and the optimization of Cell Edge User experience, improve the performance of system.

Description

A kind of channel arrangement method and system, access controller

Technical field

The present invention relates to field of communication technology more particularly to a kind of channel arrangement method and system, access controller (English Full name is：Access Controller, are abbreviated as：AC).

Background technology

Frequency spectrum is planned and optimization is an important topic of network, and main purpose is to maximize the utilization rate and effect of frequency spectrum Rate, while ensureing the experience of edge cell.Basic method is that adjacent cell is made to use different frequency ranges as far as possible, i.e., orthogonal Channel, however, (full name in English is in WLAN：Wireless Local Access Network, are abbreviated as： WLAN in), available orthogonal channel is limited, and adjacent area will more or less have co-channel interference, and plus the distinctive carrier wave prisons of WLAN Mechanism is listened, the user experience of cell edge will be caused poor.

Currently, WLAN uses industry, science and medicine, (full name in English is：Industrial, Scientific and Medical is abbreviated as ISM) frequency range, it is easy by external disturbance, in addition the dynamic of user terminal load, access point (English Full name is：Access Point, are abbreviated as：AP the demand of frequency spectrum optimization) is increasingly frequent, and traditional frequency spectrum optimization is based on a certain Specific objective such as maximizes power system capacity, carries out channel distribution to cell according to the loading condition of cell, is adapted to business Dynamic.But this method is not suitable with wlan network, because maximum capacity is easy preferential distribution channel to closer from access point User terminal, do not account for the experience of the Cell Edge User in WLAN.

In existing technology, system can greatly improve the capacity of center of housing estate by way of channel reuse, from And the capacity of network is improved, however, the business demand of user terminal and mobile time variation, will make the business substep of network simultaneously Not average price, the mode of simple channel reuse do not adapt to the variation of network service, and due to the ISM band that WLAN is used, It is difficult to ensure that cell has required orthogonal channel, will further decrease the experience of Cell Edge User.Therefore, in the prior art Channel distribution mode be difficult to adapt to network service variation and meet the experience of Cell Edge User.

Invention content

An embodiment of the present invention provides a kind of channel arrangement method and system, access controller, for access controller into Row channel configuration, and obtained channel configuration scheme can take into account the time variation of network service and improve the body of Cell Edge User It tests.

First aspect present invention provides a kind of channel arrangement method, including：

Access controller AC receives the business demand satisfaction that each access point AP of the AC management is sent；

The AC judges whether to need to carry out channel optimization according to the business demand satisfaction；

If so, being calculated according to the estimation load of all AP of AC management every in optional channel configuration scheme set The corresponding network performance index of one channel configuration scheme, the estimation load is to be estimated the load of the AP Value；

The channel configuration scheme for selecting the network performance index optimal from the channel configuration scheme set.

In first aspect in the first possible realization method, the estimation of all AP according to AC management loads Each the corresponding network performance index of channel configuration scheme calculated in optional channel configuration scheme set includes：

Each in optional channel configuration scheme set is calculated according to the estimation load of all AP of AC management The corresponding AC business demands dissatisfaction of channel configuration scheme, Service disruption ratio and average load.

The possible realization method of with reference to first aspect the first, it is described from institute in second of possible realization method Stating the channel configuration scheme for selecting the network performance index optimal in channel configuration scheme set includes：

Select AC business demands dissatisfaction, Service disruption ratio and average load equal from the channel configuration scheme set Minimum channel configuration scheme.

Second of possible realization method of the first possible realization method or first aspect with reference to first aspect, In three kinds of possible realization methods, the method further includes：

Judge whether the number of the currently available orthogonal channels of the AC is less than or equal to pre-set first numerical value；

If so, the access controller AC receives the business demand satisfaction packet that each AP of the AC management is sent It includes：

Receive the business demand satisfaction that each AP of AC management is sent, the business demand satisfaction be based on What the satisfaction of ensures bit rate business and the satisfaction of non-ensured bit rate service in all subregions of the AP obtained Value.

The third possible realization method with reference to first aspect, it is described according to institute in the 4th kind of possible realization method State each channel configuration scheme pair in the optional channel configuration scheme set of estimation load calculating of all AP of AC management Include before the packet-switching networks answered：

Estimation loads of each AP based on all subregions is calculated in accordance with the following steps：

Transmission duration needed for each sub-regions according to AP obtains total transmission needed for all subregions of the AP Duration, the transmission duration needed for the subregion be according to the average value of the rate requirement of the user terminal in the subregion and The adjacent AP's of the practical average value that can get rate of user terminal, the load increase parameter in interference domain and domain transmission and the AP What the actual transmissions duration needed for all subregions obtained；

According to all sons in the nominal rate of the AP, the protocol efficiency factor of media access control MAC layer and the AP Being averaged for rate obtained by the reality of user terminal in region is worth to the available total transmission of all subregions of the AP Duration；

Calculate the available total biography of all subregions of total the transmission duration and the AP needed for all subregions of the AP Ratio between defeated duration, the ratio are estimation loads of the AP based on all subregions.

4th kind of possible realization method with reference to first aspect, it is described according to institute in the 5th kind of possible realization method State each channel configuration scheme pair in the optional channel configuration scheme set of estimation load calculating of all AP of AC management The AC business demand dissatisfactions answered include：

The corresponding AC business demands dissatisfaction of channel configuration option b is calculated as follows：

Wherein, f_UDB(B, M) is the corresponding AC business demands dissatisfaction of the channel configuration option b,It is managed for the AC The AP of reason_cEstimation load based on all subregions, M_cFor the AP of AC management_cSubregion sum, A_pFor the AC institutes The set of the AP of management, M are the sum of the subregion of all AP of AC management.

4th kind of possible realization method with reference to first aspect, in the 6th kind of possible realization method,

The estimation load of all AP according to AC management calculates each in optional channel configuration scheme set The corresponding Service disruption ratio of a channel configuration scheme includes：

The corresponding Service disruption ratio of channel configuration option b is calculated as follows：

Wherein, f_SI(B, B^pre, M) and it is the corresponding Service disruption ratio of the channel configuration option b, b_cFor the channel configuration It is AP in option b_cThe channel of distribution,For AP_cCurrently used channel,For the AP of AC management_cBased on all sub-districts The estimation in domain loads, M_cFor the AP of AC management_cSubregion sum, A_pBy the set of the AC AP managed, M is The sum of the subregion of all AP of the AC management.

4th kind of possible realization method with reference to first aspect, it is described according to institute in the 7th kind of possible realization method It is corresponding to state each channel configuration scheme in the optional channel configuration scheme set of all AP estimation load calculating of AC management Average load includes：

The corresponding average load of channel configuration option b is calculated as follows：

Wherein, f_m-load(B, M) is the corresponding average load of the channel configuration option b,For the AP of AC management_cBase It is loaded in the estimation of all subregions, A_pBy the set of the AC AP managed, | A_p| for the number of the AP of AC management, M For the sum of the subregion of all AP of AC management.

The third possible realization method with reference to first aspect, in the 8th kind of possible realization method, the method is also Including：

If the number of the orthogonal channel currently available AC is more than pre-set first numerical value, the access Controller AC receives the business demand satisfaction that each AP that the AC is managed is sent：

Receive the business demand satisfaction that each AP of AC management is sent, the business demand satisfaction be based on The satisfaction of ensures bit rate business in all subregions for belonging to outskirt of the AP and the satisfaction of non-ensured bit rate service Obtained value is spent, the subregion for belonging to outskirt refers to that the average value of the access signal of the user terminal in subregion is less than in advance The subregion for the second value being first arranged.

8th kind of possible realization method with reference to first aspect, it is described according to institute in the 9th kind of possible realization method State each channel configuration scheme pair in the optional channel configuration scheme set of estimation load calculating of all AP of AC management Include before the network performance index answered：

Estimation loads of each AP based on all subregions for belonging to outskirt is calculated in accordance with the following steps：

Belong to the transmission duration needed for the subregion of outskirt according to each of AP and obtain all of the AP and belong to outskirt Subregion needed for total transmission duration, the transmission duration of the subregion for belonging to outskirt is the son for belonging to outskirt according to The average value and user terminal of the rate requirement of user terminal in region can get average value, interference domain and the domain transmission of rate All actual transmissions durations belonged to needed for the subregion of outskirt of the load adjacent AP that increases parameter and the AP obtain；

According to all sub-districts for belonging to outskirt of the nominal rate of the AP, the protocol efficiency factor of MAC layer and the AP The reality of user terminal in domain can get rate be averaged be worth to the AP all subregions for belonging to outskirt it is available Total transmission duration；

It calculates all total transmission durations belonged to needed for the subregion of outskirt of the AP and the AP is all belongs to outskirt The available total transmission duration of subregion between ratio, the ratio is that all subregions for belonging to outskirt of the AP are estimated Meter load.

9th kind of possible realization method with reference to first aspect, it is described according to institute in the tenth kind of possible realization method State each channel configuration scheme pair in the optional channel configuration scheme set of estimation load calculating of all AP of AC management The AC business demand dissatisfactions answered include：

Wherein, f '_UDB(B, M ') is the corresponding AC business demands dissatisfaction of the channel configuration option b,For the AC The AP of management_cEstimation load based on all subregions for belonging to outskirt, M '_cFor the AP of AC management_cThe son for belonging to outskirt The number in region, A_pBy the set of the AC AP managed, M ' is the sub-district for belonging to outskirt of all AP of AC management The sum in domain.

9th kind of possible realization method with reference to first aspect, in a kind of the tenth possible realization method, the basis The estimation load of all AP of the AC management calculates each channel configuration scheme pair in optional channel configuration scheme set The Service disruption ratio answered includes：

Wherein, f '_SI(B, B^pre, M ') and it is the corresponding Service disruption ratio of the channel configuration option b, b_cMatch for the channel Set in option b is AP_cThe channel of distribution,For AP_cCurrently used channel,For the AP of AC management_cBased on all categories In the estimation load of the subregion of outskirt, M '_cFor the AP of AC management_cThe subregion for belonging to outskirt number, A_pIt is described The set for the AP that AC is managed, M ' are the sum of the subregion for belonging to outskirt of all AP of AC management.

9th kind of possible realization method with reference to first aspect, in the 12nd kind of possible realization method, the basis The estimation load of all AP of the AC management calculates each channel configuration scheme pair in optional channel configuration scheme set The average load answered includes：

Wherein, f '_m-load(B, M ') is the corresponding average load of the channel configuration option b,For AC management AP_cEstimation load based on all subregions for belonging to outskirt, A_pBy the set of the AC AP managed, | A_p| it is the AC The number of the AP of management, M ' are the sum of the subregion for belonging to outskirt of all AP of AC management.

The 9th kind of possible realization method of 8th kind of possible realization method or first aspect with reference to first aspect, In 13 kinds of possible realization methods, the method further includes：

The currently available orthogonal channels of the AC are removed to the orthogonal channel obtained after the channel configuration scheme of selection All subregions for belonging to inner region of the AP of the AC management are distributed to, the subregion for belonging to inner region refers in subregion The average value of the access signal of user terminal is greater than or equal to the subregion of pre-set second value.

In the 14th kind of possible realization method of first aspect, the method further includes：

Judge whether the network performance index of the optimal channel configuration scheme of the network performance index of selection is better than institute State the network performance index of the currently used channel configuration schemes of AC；

If so, using the optimal channel configuration scheme of the selected network performance index.

The first possible realization method with reference to first aspect, in the 15th kind of possible realization method, the AC roots Judge whether that needing to carry out channel optimization includes according to the business demand satisfaction：

The AC calculates the average value of the business demand satisfaction got；

Judge whether the average value is greater than or equal to pre-set first numerical value；

If not, it is determined that need to carry out channel optimization.

In the 16th kind of possible realization method of first aspect, the AC is according to business demand satisfaction judgement It is no need carry out channel optimization include：

The business demand satisfaction got is compared with pre-set 4th numerical value by the AC respectively, really Surely it is greater than or equal to the number of the business demand satisfaction of pre-set 4th numerical value；

Judge whether the ratio of the number for the business demand satisfaction that the number is received with AC is greater than or equal to set in advance The 5th numerical value set；

If not, it is determined that need to carry out channel optimization.

Second aspect of the present invention provides a kind of access controller AC, including：

Receiving module, the business demand satisfaction that each access point AP for receiving the AC management is sent；

First judgment module, the business demand that each AP for receiving the AC management in the receiving module is sent After satisfaction, judge whether to need to carry out channel optimization according to the business demand satisfaction；

Computing module, for when first judgment module determination needs to carry out channel optimization, being managed according to the AC The estimation load of all AP calculate each corresponding network of channel configuration scheme in optional channel configuration scheme set Performance indicator, the estimation load is the value estimated the load of the AP；

Selecting module, for each channel configuration scheme pair in obtaining the channel configuration scheme in the computing module After the network performance index answered, the channel for selecting the network performance index optimal from the channel configuration scheme set is matched Set scheme.

The first possible realization method in conjunction with second aspect, in second of possible realization method,

The computing module is specifically used for being matched according to the optional channel of the estimation of the AC all AP managed load calculating It sets the corresponding AC business demands dissatisfaction of each channel configuration scheme in scheme set, Service disruption ratio and averagely bears It carries；

The selecting module is specifically used for selecting AC business demands dissatisfaction, industry from the channel configuration scheme set The channel configuration scheme for interruption rate and the average load minimum of being engaged in.

In conjunction with second of possible realization method of second aspect, in the third possible realization method, the AC is also wrapped It includes：

Second judgment module, for judging it is advance whether the number of the currently available orthogonal channels of the AC is less than or equal to The first numerical value being arranged；

If then the receiving module determines the currently available orthogonal channels of the AC specifically for second judgment module Number be less than or equal to pre-set first numerical value, receive the business demand satisfaction that each AP of AC management is sent Degree, the business demand satisfaction are the satisfaction of the ensures bit rate business in all subregions based on the AP and non-guarantor The value that the satisfaction of card bit rate service obtains.

The third possible realization method in conjunction with second aspect, in the 4th kind of possible realization method, the AC is also wrapped It includes：

First load computing module, matches for each channel in calculating the channel configuration scheme in the computing module Before setting the corresponding network performance index of scheme, estimation loads of each AP based on all subregions is calculated；

Described first, which loads computing module, includes：

First computing module obtains all sons of the AP for the transmission duration needed for each sub-regions according to AP Total transmission duration needed for region, the transmission duration needed for the subregion are the speed according to the user terminal in the subregion The load of the practical average value that can get rate of the average value and user terminal of rate demand, interference domain and domain transmission increase parameter and What the actual transmissions duration needed for all subregions of the adjacent AP of the AP obtained；

Second computing module, for the protocol efficiency factor according to the nominal rate of the AP, media access control MAC layer And being averaged for rate obtained by the reality of the user terminal in the AP in all subregions is worth to all sons of the AP The available total transmission duration in region；

Third computing module, for obtaining total transmission needed for all subregions of the AP in first computing module After duration and second computing module obtain the available total transmission duration of all subregions of the AP, calculate the AP's Ratio between the available total transmission duration of all subregions of total transmission duration needed for all subregions and the AP, it is described Ratio is estimation loads of the AP based on all subregions.

In conjunction with the 4th kind of possible realization method of second aspect, in the 5th kind of possible realization method, the AC is also wrapped It includes：

The computing module includes：

4th computing module, it is discontented for calculating the corresponding AC business demands of channel configuration option b as follows Meaning degree：

Wherein, f_UDB(B, M) is the corresponding AC business demands dissatisfaction of the channel configuration option b,It is managed for the AC The AP of reason_cEstimation load based on all subregions, M_cFor the AP of AC management_cSubregion sum, A_pFor the AC institutes The set of the AP of management, M are the sum of the subregion of all AP of AC management；

5th computing module, for calculating the corresponding Service disruption ratio of channel configuration option b as follows：

Wherein, f_SI(B, B^pre, M) and it is the corresponding Service disruption ratio of the channel configuration option b, b_cFor the channel configuration It is AP in option b_cThe channel of distribution,For AP_cCurrently used channel,For the AP of AC management_cBased on all sub-districts The estimation in domain loads, M_cFor the AP of AC management_cSubregion sum, A_pBy the set of the AC AP managed, M is The sum of the subregion of all AP of the AC management；

6th computing module, for calculating the corresponding average load of channel configuration option b as follows：

Wherein, f_m-load(B, M) is the corresponding average load of the channel configuration option b,For the AP of AC management_c Estimation load based on all subregions, A_pBy the set of the AC AP managed, | A_p| for the number of the AP of AC management Mesh, M are the sum of the subregion of all AP of AC management.

The first possible realization method in conjunction with second aspect, in the 6th kind of possible realization method, the reception mould If block is additionally operable to second judgment module and determines that the number of the currently available orthogonal channels of the AC is more than described pre-set The first numerical value, receive the business demand satisfaction that each AP of AC management is sent, the business demand satisfaction is Satisfaction and non-ensured bit rate service based on the ensures bit rate business in all subregions for belonging to outskirt of the AP The value that satisfaction obtains, the subregion for belonging to outskirt refer to that the average value of the access signal of the user terminal in subregion is small In the subregion of pre-set second value.

In conjunction with the 6th kind of possible realization method of second aspect, in the 7th kind of possible realization method, the AC is also wrapped It includes：

Second load computing module, matches for each channel in calculating the channel configuration scheme in the computing module Before setting the corresponding network performance index of scheme, estimation loads of each AP based on all subregions for belonging to outskirt is calculated；

Described second, which loads computing module, includes：

7th computing module, for belonged to according to each of AP the transmission duration needed for the subregion of outskirt obtain it is described All total transmission durations belonged to needed for the subregion of outskirt of AP, the transmission duration of the subregion for belonging to outskirt is basis The average value and user terminal of the rate requirement of user terminal in the subregion for belonging to outskirt can get being averaged for rate The load of value, interference domain and domain transmission increases parameter and all realities belonged to needed for the subregion of outskirt of the adjacent AP of the AP Border transmission duration obtains；

8th computing module, for the institute according to the nominal rate of the AP, the protocol efficiency factor of MAC layer and the AP There is the reality of the user terminal in the subregion for belonging to outskirt to can get being averaged for rate to be worth to all of the AP and belong to outer The available total transmission duration of subregion in area；

9th computing module, for respectively obtaining the AP's in the 7th computing module and the 8th computing module All available total biographies of all subregions for belonging to outskirt for belonging to total transmission duration and the AP needed for the subregion of outskirt After defeated duration, calculates all total transmission durations belonged to needed for the subregion of outskirt of the AP and the AP is all belongs to outer Ratio between the available total transmission duration of subregion in area, the ratio is all subregions for belonging to outskirt of the AP Estimation load.

In conjunction with the 7th kind of possible realization method of second aspect, in the 8th kind of possible realization method, the calculating mould Block further includes：

Tenth computing module, it is discontented for calculating the corresponding AC business demands of channel configuration option b as follows Meaning degree：

Wherein, f '_UDB(B, M ') is the corresponding AC business demands dissatisfaction of the channel configuration option b,For the AC The AP of management_cEstimation load based on all subregions for belonging to outskirt, M '_cFor the AP of AC management_cThe son for belonging to outskirt The number in region, A_pBy the set of the AC AP managed, M ' is the sub-district for belonging to outskirt of all AP of AC management The sum in domain；

11st computing module, for calculating the corresponding Service disruption ratio of channel configuration option b as follows：

Wherein, f '_SI(B, B^pre, M ') and it is the corresponding Service disruption ratio of the channel configuration option b, b_cMatch for the channel Set in option b is AP_cThe channel of distribution,For AP_cCurrently used channel,For the AP of AC management_cBased on all categories In the estimation load of the subregion of outskirt, M '_cFor the AP of AC management_cThe subregion for belonging to outskirt number, A_pIt is described The set for the AP that AC is managed, M ' are the sum of the subregion for belonging to outskirt of all AP of AC management；

12nd computing module, for calculating the corresponding average load of channel configuration option b as follows：

In conjunction with the 8th kind of possible realization method of the 7th kind of possible realization method of second aspect or second aspect, In nine kinds of possible realization methods, the AC further includes：

Distribution module, after the channel configuration scheme for the currently available orthogonal channels of the AC to be removed to selection To orthogonal channel distribute to AC management AP all subregions for belonging to inner region, the subregion for belonging to inner region is The average value for referring to the access signal of the user terminal in subregion is greater than or equal to the subregion of pre-set second value.

In the tenth kind of possible realization method of second aspect, the AC further includes：

Third judgment module judges the net of selection after selecting channel configuration scheme in the selecting module Whether the network performance index of the optimal channel configuration scheme of network performance indicator is better than the currently used channel configurations of the AC The network performance index of scheme；

Execution module, for determining that the network performance of the selected channel configuration scheme refers in the third judgment module After mark is better than the network performance index of the currently used channel configuration schemes of the AC, the selected internetworking is used It can the optimal channel configuration scheme of index.

Third aspect present invention provides a kind of channel configuration system, including the access control that second aspect of the present invention provides All access point AP of device AC and AC management.

As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages：

After AC obtains the business demand satisfaction of each AP of its management, it will be satisfied with according to the business demand got Degree judges whether to need to carry out channel optimization, and in the case where needing to carry out channel optimization, AC is according to the AC AP's managed Estimation load calculates each corresponding network performance index of channel configuration scheme in optional channel configuration scheme set, and The optimal channel configuration scheme of network performance index is selected from channel configuration scheme set, can consider network service when It is excellent can effectively to realize that the time variation of network service and Cell Edge User are experienced for denaturation and the experience of Cell Edge User Change, improves the performance of system.

Description of the drawings

Fig. 1 is a schematic diagram of channel arrangement method in the embodiment of the present invention；

Fig. 2 is another schematic diagram of channel arrangement method in the embodiment of the present invention；

Fig. 3 is another schematic diagram of channel arrangement method in the embodiment of the present invention；

Fig. 4 is a schematic diagram of the structure of AC in the embodiment of the present invention；

Fig. 5 is another schematic diagram of the structure of AC in the embodiment of the present invention；

Fig. 6 is another schematic diagram of the structure of AC in the embodiment of the present invention；

Fig. 7 is the structure chart of channel configuration system in the embodiment of the present invention.

Specific implementation mode

An embodiment of the present invention provides a kind of channel arrangement method and system, access controller, for access controller into Row channel configuration, and obtained channel configuration scheme can take into account the time variation of network service and improve the body of Cell Edge User It tests, improves the performance of system.

Referring to Fig. 1, for a kind of embodiment of channel arrangement method in the embodiment of the present invention, including：

101, AC receives the business demand satisfaction that each AP of AC management is sent；

In embodiments of the present invention, AC is responsible for the management etc. of the access control of wireless network, forwarding and statistics, AP, and Channel configuration can be carried out to AP.

In embodiments of the present invention, AP will periodically carry out the calculating of business demand satisfaction, and the industry that will be calculated Business demand satisfaction is sent to the AC for managing the AP, and therefore, AC will receive the business demand satisfaction of each AP of its management, Such as：If AC manages 5 AP, AC will receive the corresponding business demand satisfaction of 5 AP transmissions.

102, AC judges whether to need to carry out channel optimization according to business demand satisfaction；

In embodiments of the present invention, the business demand satisfaction sent according to received AP is judged whether needs by AC Carry out channel optimization.

103, channel optimization is if desired carried out, optional channel configuration is calculated according to the estimation load of all AP of AC management Each corresponding network performance index of channel configuration scheme in scheme set, estimation load are to estimate the load of AP Obtained value；

In embodiments of the present invention, if AC according to receive its management AP business demand satisfaction determination need into Row channel optimizes, then calculating each in optional channel configuration scheme set according to the estimation load of all AP of AC management believes The corresponding network performance index of road allocation plan, wherein estimation load is the value estimated the load of AP, optionally Channel configuration scheme set is related with the number of currently available orthogonal channel, and the number of currently available orthogonal channel determines it Afterwards, optional channel configuration scheme set can determine, and the method for determination of optional channel configuration scheme set is existing skill Art, details are not described herein again, wherein network performance index can be：AC business demands dissatisfaction, Service disruption ratio and average negative It carries, in addition, network performance index can also be other performance parameters, does not limit herein.

104, the channel configuration scheme for selecting network performance index optimal from channel configuration scheme set.

In embodiments of the present invention, each channel configuration of AC in optional channel configuration scheme set is calculated After the corresponding network performance index of scheme, network performance index will be selected optimal from the optional channel configuration scheme set Channel configuration scheme, such as：Using genetic algorithm AC business demands are selected from the optional channel configuration scheme set not The minimum channel configuration scheme of satisfaction, Service disruption ratio and average load, then in AC business demands dissatisfaction, the business The channel configuration scheme of disconnected rate and average load minimum is the optimal channel configuration scheme of network performance index.

It in embodiments of the present invention, will be according to receiving after AC receives the business demand satisfaction of the AP of its management The business demand satisfaction of AP judge whether to need to carry out channel optimization, and in the case where needing to carry out channel optimization, AC Each channel configuration scheme in optional channel configuration scheme set is calculated according to the estimation load of all AP of AC management Corresponding network performance index, and the channel configuration scheme for selecting network performance index optimal from channel configuration scheme set, It can effectively realize the time variation of network service and the optimization of Cell Edge User experience, improve the performance of system.

Technical solution in embodiment in order to better understand the present invention, referring to Fig. 2, in the embodiment of the present invention, one The embodiment of kind channel arrangement method, including：

201, judge whether the number of the currently available orthogonal channels of AC is less than or equal to pre-set first numerical value；

In embodiments of the present invention, AC will determine that whether the number of currently available orthogonal channel is less than or equal to and set in advance The first numerical value set, such as：If pre-set first numerical value, which is 3, AC, judges that the number of currently available orthogonal channel is It is no to be less than or equal to 3.

If 202, the number of orthogonal channel currently available AC is less than or equal to pre-set first numerical value, AC is received The business demand satisfaction that each AP of AC management is sent, the business demand satisfaction are in all subregions based on AP The value that the satisfaction of ensures bit rate business and the satisfaction of non-ensured bit rate service obtain；

In embodiments of the present invention, if the number of orthogonal channel currently available AC is less than or equal to pre-set first Numerical value, then the business demand satisfaction that each AP of AC receptions AC management is sent, which is based on AP's The value that the satisfaction of ensures bit rate business and the satisfaction of non-ensured bit rate service in all subregions obtain.

In embodiments of the present invention, the regional extent that each AP is managed is divided into multiple subregions, works as in AC In the case that the number of preceding available orthogonal channel is less than or equal to pre-set first numerical value, AC can utilize AP to be based on its institute There are the satisfaction of ensures bit rate business and the satisfaction of non-ensured bit rate service in subregion to obtain the business of the AP Demand satisfaction.

In embodiments of the present invention, AP can obtain the business of the business demand based on its all subregion as follows Demand satisfaction：

S_c=k·S_{GBR, c}+(1-k)S_{Non-GBR, c}, 0 ＜ k ＜ 1

Wherein,

Wherein, S_cFor AP_cThe business demand satisfaction of business demand based on all subregions, S_{GBR, c}For AP_cAll sons (full name in English is ensures bit rate business in region：Guarantee the Bit Rate, are abbreviated as：GBR satisfaction), V_iFor the average value of the actual speed rate of the ensures bit rate business in i-th of subregion, V_{I, 0}For the guarantee in i-th of subregion The average value of the Theoretical Rate of bit rate service；S_{Non-GBR, c}For AP_cAll subregions in non-ensured bit rate service expire Meaning degree,For AP_cAll subregions in non-ensured bit rate service actual speed rate average value, V_AMBRFor AP_cIt is all (full name in English is the accumulative Maximum Bit Rate of non-ensured bit rate service in subregion：Aggregated Maximum Bit Rate is abbreviated as：AMBR) average value；The AMBR average values are generally constant, wherein the actual average of ensures bit rate business Speed is in the measurement period, and the average value of the numerical value that AP is counted, the Theoretical Rate of ensures bit rate business is synchronous Constant, depend on the subregion in ensures bit rate business rate requirement average value.

In embodiments of the present invention, the business of WLAN can be divided into ensures bit rate business and non-ensured bit rate service, It, can be to the ensures bit rate business and non-ensured bit rate in every sub-regions after its range of management is divided into subregion by AP Business is counted to obtain the satisfaction and non-ensured bit rate of the ensures bit rate business in all subregions of above-mentioned AP The satisfaction of business, and then obtain the business demand satisfaction of AP.

In embodiments of the present invention, if the number of orthogonal channel currently available AC is more than pre-set first numerical value, Then AC receives the business demand satisfaction that each AP of AC management is sent, which is all categories based on AP In the value that the business demand of the subregion of outskirt obtains, wherein the subregion for belonging to outskirt refers to the user terminal in subregion Access signal average value be less than pre-set second value subregion, it should be noted that it is currently available in AC The number of orthogonal channel carries out channel configuration method in the case of being more than pre-set first numerical value will be in next implementation It is described in detail in example, details are not described herein again.

It should be noted that in embodiments of the present invention, AC will periodically carry out channel configuration, AP can be carried out according to AC The period of channel configuration sends the business demand satisfaction and/or its base that its business demand based on all subregions obtains to AC In the business demand satisfaction that the business demand of all subregions for belonging to outskirt obtains, alternatively, AC can need AP to be sent out to it When sending business demand satisfaction, feedback triggering message is sent to all AP of its management, is carried in the message and needs AP feedbacks The type of business demand satisfaction, such as：The type, which can be the business that the business demand based on all subregions of AP obtains, to be needed Satisfaction is sought, or can be the business demand satisfaction that the business demand based on all subregions for belonging to outskirt of AP obtains.

203, AC judges whether to need to carry out channel optimization according to business demand satisfaction, if so, continuing to execute step 204；

In embodiments of the present invention, AC is obtained according to the business demand of the AP received all subregions based on AP sent To business demand satisfaction judge whether to need to carry out channel optimization, wherein AC judges the mode for needing to carry out channel optimization There are many, such as：AC can calculate the industry that the business demand based on all subregions of the AP transmissions of its management received obtains The average value of business demand satisfaction；It is advance to judge whether the average value of the business demand satisfaction being calculated is greater than or equal to The first numerical value being arranged；If the average value is greater than or equal to pre-set first numerical value, AC, which can determine, need not carry out letter Road optimizes；If the average value is less than pre-set first numerical value, AC, which can determine, to be needed to carry out channel optimization.It is exemplified as：If AC receive its management 5 AP send business demand satisfaction, respectively 0.7,0.8,0.75,0.85,0.7, then calculate The average value of the business demand satisfaction of 5 AP, which is 0.76, can if pre-set first numerical value is 0.7 It determines that the average value 0.76 for the business demand satisfaction that AC is calculated is more than pre-set first numerical value 0.7, does not then need Carry out channel optimization.In another example：The business that AC obtains the AP received the business demands based on all subregions sent needs It asks satisfaction to be compared respectively with pre-set 4th numerical value, determines the AP more than or equal to pre-set 4th numerical value The number of the business demand satisfaction of transmission；And judge that the business demand of the AP more than or equal to pre-set 4th numerical value expires Whether the number of meaning degree and the ratio of the number of the AC business demand satisfactions received are greater than or equal to the pre-set 5th Numerical value；If more than or equal to the 5th numerical value, then AC, which can determine, need not carry out channel optimization；If being less than the 5th numerical value, AC It can determine and need to carry out channel optimization.It is exemplified as：If AC receives the business demand satisfaction that 5 AP of its management are sent, point Not Wei 0.6,0.7,0.75,0.8,0.85, if pre-set 4th numerical value is 0.75, can determine more than or equal to setting in advance The number of the business demand satisfaction for the 4th numerical value 0.75 set is 3, then 3 and 5 ratio is 0.6, if the pre-set 5th Numerical value is 0.7, then ratio 0.6 is less than pre-set 5th numerical value 0.7, and AC determinations need to carry out channel optimization.

204, if it is determined that needing to carry out channel optimization, then estimations of each AP based on all subregions of AC management is calculated Load；

In embodiments of the present invention, if AC determinations need to carry out channel optimization, AC will count each AP of AC management Estimation load based on all subregions matches the channel for being continuing with current if AC determinations need not carry out channel optimization Set scheme.

In embodiments of the present invention, AC can calculate estimation loads of each AP based on all subregions in accordance with the following steps, Transmission duration needed for each sub-regions including AC according to AP obtains total transmission duration needed for all subregions of the AP, Wherein, the transmission duration needed for subregion is whole according to the average value of the rate requirement of the user terminal in the subregion and user The load of the average value, interference domain and domain transmission of the practical available rate in end increases parameter and all sub-districts of the adjacent AP of the AP What the actual transmissions duration needed for domain obtained；Then, AC according to the nominal rate of the AP, the protocol efficiency factor of MAC layer and is somebody's turn to do All subregions that being averaged of rate obtained by the reality of user terminal in AP in all subregions is worth to the AP are available Total transmission duration；Finally, all subregions for calculating the total transmission duration and the AP needed for all subregions of the AP are available Total transmission duration between ratio, the estimation which is the AP loads.

For a better understanding, calculating AP with AC_cEstimation load for illustrate, AC can be obtained as follows AP_cAll subregions needed for total transmission duration T_c：

Wherein, D_iFor AP_cIn i-th of subregion in user terminal rate requirement average value, R_iFor AP_cIn The practical average value that can get rate of user terminal in i-th of subregion；ANR_cFor with AP_cThe set of adjacent AP,For with AP_cAdjacent AP_dAll subregions needed for actual transmissions duration, a_{I, d}And x_{C, d}For interference domain and biography The load in defeated domain increases parameter.

Wherein, AP_cIn i-th of subregion in user terminal reality obtained by the average value of rate be：

Wherein,For AP_cScheduler, η^BWFor AP_cChannel width, η^SINRFor AP_cSignal-to-noise ratio coefficient, W is channel Bandwidth, SINR_iFor the signal-to-noise ratio of i-th of subregion.

In embodiments of the present invention, AP_cIn i-th of subregion signal-to-noise ratio SINR_iFor：

Wherein, P_cFor AP_cTransmission power, P_dFor AP_dTransmission power, ANR_cFor with AP_cThe set of adjacent AP, P^noise For AP_cNoise power；

Wherein,For AP_cIn i-th of subregion to AP_cChannel gain,For AP_cIn i-th Subregion is to AP_dChannel gain, wherein p_{I, c}For AP_cIn user terminal in i-th of subregion useful signal that receives Mean power, p_{I, d}For AP_cIn the mean power of interference signal that receives of user terminal in i-th of subregion.

Wherein,CCA_iFor the detection threshold value of i-th of subregion；If a_{I, d}Value be 0 Then indicate that the load that interference domain is brought increases, if a_{I, d}Value be 1 and indicate that the load that domain transmission brings increases.

Wherein,

It should be noted that in embodiments of the present invention, calculating total transmission duration institute needed for all subregions of AP The T used_cThe first item of calculation formula consider the signal interference between neighboring community, Section 2 considers neighboring community's biography The interference in defeated domain, therefore, the load increase that AC can consider interference domain and domain transmission is brought so that obtain more accurately estimating Meter load, in order to which AC can be carried out effectively the optimization of channel configuration.

In embodiments of the present invention, AC can obtain AP as follows_cThe available total transmission duration of all subregions：

Wherein, T_{Total, c}For AP_cThe available total transmission duration of all subregions, C_cFor AP_cNominal rate, η_cFor AP_c Media access control (full name in English is：MediaAccess Control, are abbreviated as：MAC) the protocol efficiency factor of layer, R_{Avg, c}For AP_cIn user terminal in all subregions reality obtained by rate average value.

In embodiments of the present invention, AP_cIn all subregions in user terminal reality obtained by rate it is flat Mean valueWherein, M_cFor AP_cSubregion sum, R_iIt is practical for the user terminal in i-th of subregion The average value of obtainable rate.

In embodiments of the present invention, the ratio of total transmission duration needed for AP and the available total transmission durations of AP is the AP Estimation load, calculation formula is：The estimation loads the carrier sense characteristic and co-channel interference for considering WLAN, The accuracy for greatly improving load estimation, can effectively react the relationship between channel so that AC can be effective Carry out channel configuration.

205, each in optional channel configuration scheme set is calculated according to the estimation load of all AP of AC management The corresponding AC business demands dissatisfaction of channel configuration scheme, Service disruption ratio and average load；

In embodiments of the present invention, AC is in the estimation for rates of each AP based on its all subregion is calculated obtaining It, will be according to each letter in each the optional channel configuration scheme set of estimation load calculating being calculated after load The corresponding AC business demands dissatisfaction of road allocation plan, Service disruption ratio and average load.

In embodiments of the present invention, optional channel configuration scheme set and the number of currently available orthogonal channel have It closes, after the number determination of currently available orthogonal channel, optional channel configuration scheme set can determine, and optional letter The method of determination of road allocation plan set is the prior art, and details are not described herein again.

For a better understanding, below will be to calculate AC business demands dissatisfaction, the service disconnection of channel configuration option b Illustrate AC business demands dissatisfaction, Service disruption ratio and the computational methods of average load for rate and average load, including：

Wherein, f_UDB(B, M) is the corresponding AC business demands dissatisfaction of channel configuration option b,For the AP of AC management_cBase It is loaded in the estimation of all subregions, M_cFor the AP of AC management_cSubregion sum, A_pBy the set of the AC AP managed, M For the sum of the subregion of all AP of AC management.

Wherein, f_SI(B, B^pre, M) and it is the corresponding Service disruption ratio of channel configuration option b, b_cTo be in channel configuration option b AP_cThe channel of distribution,For AP_cCurrently used channel,AP is managed for AC_cBased on all subregions estimation load, M_cFor the AP of AC management_cSubregion sum, A_pBy the set of the AC AP managed, M is the subregion of all AP of AC management Sum.

Wherein, f_m-load(B, M) is the corresponding average load of channel configuration option b,For the AP of AC management_cBased on all sons The estimation in region loads, A_pBy the set of the AC AP managed, | A_p| for the number of the AP of AC management, M is all AP of AC management Subregion sum.

206, AC business demands dissatisfaction, Service disruption ratio are selected from channel configuration scheme set using genetic algorithm And the channel configuration scheme that average load is minimum；

In embodiments of the present invention, AC will select AC business demands not using genetic algorithm from channel configuration scheme set The minimum channel configuration scheme of satisfaction, Service disruption ratio and average load, it is alternatively that channel configuration scheme.

In embodiments of the present invention, the channel configuration scheme of the selection can effectively be realized dissatisfied to AC business demands Degree, Service disruption ratio and the optimization of average load, and the optimization of AC business demand dissatisfactions can effectively promote cell edge The experience of user, the optimization of Service disruption ratio can effectively reduce the cost of spectrum disposition, further improve user experience, and flat The optimization loaded can effectively promote network capacity.

In embodiments of the present invention, AC can determine the utility function for carrying out genetic algorithm, if utility function is minmize {f_UDB, f_m-load, f_SI, then can be found by genetic algorithm according to the utility function enable to AC business demands dissatisfaction, The channel configuration scheme of Service disruption ratio and average load minimum；If utility function is minmize { f_UDB, f_m-load, then AC The set of the channel configuration scheme of optimization can be found by genetic algorithm according to the utility function, and the channel for calculating the optimization is matched The Service disruption ratio for setting each channel configuration scheme in scheme set is selected from the set of the channel configuration scheme of the optimization Select the channel configuration scheme of Service disruption ratio minimum.

It should be noted that in embodiments of the present invention, the channel configuration scheme of condition is met using genetic algorithm selection Method be the prior art, details are not described herein again.

207, judge whether the channel configuration scheme of selection is better than the currently used channel configuration schemes of AC；

208, if so, using selection channel configuration scheme.

In embodiments of the present invention, AC also will determine that the channel of the selection after determining the channel configuration scheme of selection Whether allocation plan is better than the currently used channel configuration schemes of AC, and if it is determined that the channel configuration scheme of the selection is better than AC Currently used channel configuration scheme will then use the channel configuration scheme of the selection, however, it is determined that the channel configuration of the selection Scheme is not better than the currently used channel configuration schemes of AC, then is continuing with currently used channel configuration scheme.It needs Illustrate, in embodiments of the present invention, AC is that all subregions based on AP carry out channel configuration, therefore, the selection Channel configuration scheme is the channel configuration scheme that all subregions based on the AC AP managed obtain, the channel configuration with the selection The currently used channel configuration schemes of AC that scheme is compared are also to refer to that all subregions of the AP of AC management are current The channel configuration scheme used.

In embodiments of the present invention, AC judges whether the channel configuration scheme of selection matches better than the currently used channels of AC The method for setting scheme can be：AC judges the AC business demands dissatisfaction of channel configuration scheme of choosing, Service disruption ratio and flat Load AC business demands dissatisfaction, the Service disruption ratio for whether being respectively less than the currently used channel configuration schemes of AC And average load, it should be noted that also other modes can be used to determine whether the channel configuration scheme of selection is better than AC for AC Currently used channel configuration scheme, details are not described herein again.

In embodiments of the present invention, AC is less than or equal to pre-set in the number for determining currently available orthogonal channel In the case of first numerical value, after AC receives the business demand satisfaction of AP transmissions of its management, the business demand satisfaction For the value that the business demand of all subregions based on AP obtains, and AC will judge whether needs according to the business demand satisfaction Channel optimization is carried out, if so, calculating the institute of total the transmission duration and AP needed for all subregions of each AP of AC management There are the ratio between the available total transmission duration of subregion, the estimation which is corresponding A P to load, and according to obtained estimation Load calculates AC business demands dissatisfaction, the service disconnection of each channel configuration scheme in optional channel configuration scheme Rate and average load select AC business demands dissatisfaction, industry using genetic algorithm from optional channel configuration scheme set The channel configuration scheme for interruption rate and the average load minimum of being engaged in, and it is currently used better than AC in the minimal configuration scheme of the selection Channel configuration scheme in the case of, using the channel configuration scheme of the selection, considered network service time variation and The experience of Cell Edge User can effectively realize the time variation of network service and the optimization of Cell Edge User experience, improve The performance of system.

In the embodiment depicted in figure 2, describe the number in the current workable orthogonal channels of AC be less than or equal to it is advance In the case of the first numerical value being arranged, the method that AC carries out channel configuration is described more fully below currently workable just in AC In the case of handing over the number of channel to be more than pre-set first numerical value, the method that AC carries out channel configuration, referring to Fig. 3, Including：

301, judge whether the number of the currently available orthogonal channels of AC is less than or equal to pre-set first numerical value；

If 302, the number of orthogonal channel currently available AC is more than pre-set first numerical value, AC receives AC management Each AP send business demand satisfaction, the business demand satisfaction be all subregions for belonging to outskirt based on AP In the ensures bit rate moon satisfaction and the obtained value of the satisfaction of the non-ensured bit rate moon；

In embodiments of the present invention, if the number of orthogonal channel currently available AC is more than pre-set first numerical value, Then AC can receive the business demand satisfaction that each AP of AC management is sent, which is based on all categories of AP In the value that the business demand of the subregion of outskirt obtains, wherein the subregion for belonging to outskirt refers to the user terminal in subregion Access signal average value be less than pre-set second value subregion.

In embodiments of the present invention, AP obtains business of the AP based on all subregions for belonging to outskirt as follows needs The business demand satisfaction asked：

S′_c=kS '_{GBR, c}+(1-k)S′_{Non-GBR, c}, 0 ＜ k ＜ 1

Wherein,

Wherein, S '_cFor AP_cThe business demand satisfaction of business demand based on all subregions for belonging to outskirt, S '_{GBR, c} For AP_cAll subregions for belonging to outskirt in ensures bit rate business satisfaction, V_i' it is i-th of sub-district for belonging to outskirt The average value of the actual speed rate of ensures bit rate business in domain, V '_{I, 0}Belong to the guarantee ratio in the subregion of outskirt for i-th The average value of the Theoretical Rate of special rate business；S′_{Non-GBR, c}For AP_cAll subregions for belonging to outskirt in non-guaranteed bit The satisfaction of rate business,For AP_cAll subregions for belonging to outskirt in non-ensured bit rate service actual speed rate Average value, V '_AMBRFor AP_cAll subregions for belonging to outskirt in non-ensured bit rate service AMBR average values.

303, AC judges whether to need to carry out channel optimization according to business demand satisfaction, if so, continuing to execute step 304；

In embodiments of the present invention, AC is according to the business demands of the AP all subregions for belonging to outskirt based on AP sent Obtained business demand satisfaction judges whether to need to carry out channel optimization, wherein AC judges the side for needing to carry out channel optimization There are many formulas, such as：AC can calculate all subregions for belonging to outskirt based on AP of the AP transmissions of its management received The average value for the business demand satisfaction that business demand obtains；It is advance to judge whether the average value being calculated is greater than or equal to The first numerical value being arranged；If the average value is greater than or equal to pre-set first numerical value, AC, which can determine, need not carry out letter Road optimizes；If the average value is less than pre-set first numerical value, AC, which can determine, to be needed to carry out channel optimization.It is exemplified as：If AC receive its management 5 AP send business demand satisfaction, respectively 0.7,0.8,0.75,0.85,0.7, then calculate The average value of the business demand satisfaction of 5 AP, which is 0.76, can if pre-set first numerical value is 0.7 It determines that the average value 0.76 for the business demand satisfaction that AC is calculated is more than pre-set first numerical value 0.7, does not then need Carry out channel optimization.In another example：AC needs the business of the AP received all subregions for belonging to outskirt based on AP sent The business demand satisfaction asked is compared with pre-set 4th numerical value respectively, and determination, which is greater than or equal to, to be pre-set The 4th numerical value AP send business demand satisfaction number；And judge more than or equal to pre-set 4th numerical value Whether the ratio of the number for the business demand satisfaction that the number of the business demand satisfaction of AP is received with AC is greater than or equal to Pre-set 5th numerical value；If more than or equal to the 5th numerical value, then AC, which can determine, need not carry out channel optimization；If less than should 5th numerical value, then AC, which can determine, needs to carry out channel optimization.It is exemplified as：If AC receives the business that 5 AP of its management are sent Demand satisfaction, respectively 0.6,0.7,0.75,0.8,0.85, if pre-set 4th numerical value is 0.75, can determine big In or equal to pre-set 4th numerical value 0.75 business demand satisfaction number be 3, then 3 and 5 ratio be 0.6, if Pre-set 5th numerical value is 0.7, then ratio 0.6 is less than pre-set 5th numerical value 0.7, and AC determinations need to carry out channel Optimization.

304, if it is determined that needing to carry out channel optimization, then each AP of AC management is calculated based on all sons for belonging to outskirt The estimation in region loads；

In embodiments of the present invention, if AC determinations need to carry out channel optimization, each AP base of AC management will be calculated It loads, is specifically as follows in the estimation of all subregions for belonging to outskirt：Belong to the subregion institute of outskirt according to each of AP The transmission duration needed obtains all total transmission durations belonged to needed for the subregion of outskirt of the AP, wherein belongs to the son of outskirt The transmission duration in region is average value and the user's end for the rate requirement for belonging to the user terminal in the subregion of outskirt according to this Average value, the load increase parameter in interference domain and domain transmission and all of adjacent AP of the AP that end can get rate belong to outskirt Subregion needed for actual transmissions durations obtain；And according to the nominal rate of the AP, MAC layer the protocol efficiency factor and should The reality of user terminal in all subregions for belonging to outskirt of AP can get being averaged for rate and be worth to all categories of the AP In the available transmission duration of the subregion of outskirt；Calculate all total transmission durations belonged to needed for the subregion of outskirt of the AP with Ratio between the available total transmission duration of all subregions for belonging to outskirt of the AP, which is that the AP is based on all belong to The estimation of the subregion of outskirt loads.

AP is calculated with AC_cEstimation load for illustrate, AC can obtain AP as follows_cAll belong to outer Total transmission duration T ' needed for the subregion in area_cFor：

Wherein, D '_iFor AP_cIn i-th of subregion for belonging to outskirt in user terminal rate requirement average value, R′_iFor AP_cIn i-th of subregion for belonging to outskirt in user terminal reality obtained by rate average value；ANR_cFor with AP_cThe set of adjacent AP,For with AP_cAdjacent AP_dAll practical biographies belonged to needed for the subregion of outskirt Defeated duration, a_{I, d}And x_{C, d}Increase parameter for the load of interference domain and domain transmission.

Wherein, AP_cIn i-th of subregion for belonging to outskirt in user terminal reality obtained by rate average value For：

Wherein,For AP_cScheduler, η^BWFor AP_cChannel width, η^SINRFor AP_cSignal-to-noise ratio coefficient, W is channel Bandwidth, SINR_iThe signal-to-noise ratio for the subregion for belonging to outskirt for i-th.

In embodiments of the present invention, AP_cIn i-th of subregion for belonging to outskirt signal-to-noise ratio SINR_iFor：

Wherein,For AP_cIn i-th of subregion for belonging to outskirt to AP_cChannel gain,For AP_cIn i-th of subregion for belonging to outskirt to AP_dChannel gain, wherein p_{I, c}For AP_cIn i-th of son for belonging to outskirt The mean power for the useful signal that user terminal in region receives, p_{I, d}For AP_cIn i-th of subregion for belonging to outskirt The mean power for the interference signal that interior user terminal receives.

Wherein,

Wherein, P '_{I, d}The user terminal belonged to for i-th in the subregion of outskirt receives and AP_cAdjacent AP_dWork( The average value of rate, CCA '_iThe detection threshold value for the subregion for belonging to outskirt for i-th；

Wherein,

Wherein, the available total transmission duration T ' of all subregions for belonging to outskirt of AP_total,cFor：

Wherein, C_cFor AP_cNominal rate, η_cFor AP_cMedia access control MAC layer the protocol efficiency factor, R '_{Avg, c} For AP_cIn user terminal in all subregions for belonging to outskirt reality obtained by rate average value.

305, each in optional channel configuration scheme set is calculated according to the estimation load of all AP of AC management The corresponding AC business demands dissatisfaction of channel configuration scheme, Service disruption ratio and average load；

In embodiments of the present invention, AC will calculate optional channel according to the estimation load of the AP for its management being calculated AC business demands dissatisfaction, Service disruption ratio and the average load of each channel configuration scheme in allocation plan set, The estimation load of the AP is estimation loads of the AP based on all subregions for belonging to outskirt.

For a better understanding, below will be to calculate AC business demands dissatisfaction, the service disconnection of channel configuration option b Illustrate business demand satisfaction, Service disruption ratio and the computational methods of average load for rate and average load, including：

Wherein, f '_UDB(B, M ') is the corresponding AC business demands dissatisfaction of channel configuration option b,For AC management AP_cEstimation load based on all subregions for belonging to outskirt, M '_cFor the AP of AC management_cThe subregion for belonging to outskirt number Mesh, A_pBy the set of the AC AP managed, M ' is the sum of the subregion for belonging to outskirt of all AP of AC management.

Wherein, f '_SI(B, B^pre, M ') and it is the corresponding Service disruption ratio of channel configuration option b, b_cFor in channel configuration option b For AP_cThe channel of distribution,For AP_cCurrently used channel,For the AP of AC management_cBased on all subregions for belonging to outskirt Estimation load, M '_cFor the AP of AC management_cThe subregion for belonging to outskirt number, A_pBy the set of the AC AP managed, M ' For the sum of the subregion for belonging to outskirt of all AP of AC management.

Wherein, f '_m-load(B, M ') is the corresponding average load of channel configuration option b,For the AP of AC management_cBased on institute There is the estimation for the subregion for belonging to outskirt to load, A_pBy the set of the AC AP managed, | A_p| for the number of the AP of AC management, M ' For the sum of the subregion for belonging to outskirt of all AP of AC management.

306, AC business demands dissatisfaction, Service disruption ratio are selected from channel configuration scheme set using genetic algorithm And the channel configuration scheme that average load is minimum；

In embodiments of the present invention, the allocation plan of the selection can be realized effectively to AC business demands dissatisfaction, industry The optimization of business interruption rate and average load, and the optimization of AC business demand dissatisfactions can effectively promote Cell Edge User Experience, the optimization of Service disruption ratio can effectively reduce the cost of spectrum disposition, further improve user experience, and average load Optimization can effectively promote network capacity.

In embodiments of the present invention, AC can determine the utility function for carrying out genetic algorithm, if utility function is minmize {f′_UDB(B, M '), f '_m-load(B, M '), f '_SI(B, B^pre, M ') }, then energy can be found by genetic algorithm according to the utility function Enough so that the channel configuration scheme of AC business demands dissatisfaction, Service disruption ratio and average load minimum；If utility function For minmize { f '_UDB(B, M '), f '_m-load(B, M ') }, then AC can find optimization according to the utility function by genetic algorithm The set of channel configuration scheme, and calculate the business of each channel configuration scheme in the channel configuration scheme set of the optimization Interruption rate selects the channel configuration scheme of Service disruption ratio minimum from the set of the channel configuration scheme of the optimization.

307, judge whether the channel configuration scheme of selection is better than the currently used channel configuration schemes of AC；

308, if so, using selection channel configuration scheme.

In embodiments of the present invention, AC also will determine that the channel of the selection after determining the channel configuration scheme of selection Whether allocation plan is better than the currently used channel configuration schemes of AC, wherein the channel configuration scheme of the selection is AC pipes The channel configuration scheme that all subregions for belonging to outskirt of the AP of reason determine, therefore, in the network performance index for judging selection It is the channel configuration for judging the selection when whether optimal channel configuration scheme is better than AC currently used channel configuration schemes Scheme channel arrangement method whether currently used better than all subregions for belonging to outskirt of the AP of AC management.And if it is determined that The channel configuration scheme of the selection channel configuration currently used better than all subregions for belonging to outskirt of the AP of AC management Scheme, then the channel configuration scheme that the network performance index of the selection will be used optimal, however, it is determined that the channel configuration side of the selection Case channel arrangement method currently used better than all subregions for belonging to outskirt of the AP of AC management, then be continuing with Currently used channel configuration scheme.

In embodiments of the present invention, all outskirts that belong to of the channel configuration scheme of the selection better than the AP of AC management The currently used channel configuration scheme of subregion refers to：The channel configuration option A C business demands dissatisfaction, business of the selection Interruption rate and average load are that the currently used channel of all subregions for belonging to outskirt for the AP for being respectively less than AC management is matched Set AC business demands dissatisfaction, Service disruption ratio and the average load of scheme.It should be noted that determining the channel of the selection Whether allocation plan is better than the side of the currently used channel configuration scheme of all subregions for belonging to outskirt of the AP of AC management Formula can also have other many kinds, and details are not described herein again.

It should be noted that the channel configuration scheme in all subregions for belonging to outskirt for the AP for determining AC management is selected After the channel configuration scheme selected, AC also removes the AC currently available orthogonal channels after the channel configuration scheme of the selection To orthogonal channel distribute to the AC management AP all subregions for belonging to inner region, wherein belonging to the subregion of inner region is The average value for referring to the access signal of the user terminal in subregion is greater than or equal to the subregion of pre-set second value.

In embodiments of the present invention, it is more than pre-set first numerical value in the number of orthogonal channel currently available AC In the case of, AC receives the industry that the business demand of all subregions for belonging to outskirt based on the AP of the AP transmissions of its management obtains Business demand satisfaction, and judge whether to need to carry out channel optimization according to the business demand satisfaction, it needs to carry out letter in determination Road optimize in the case of, AC calculate its management each AP all total transmission durations belonged to needed for the subregion of outskirt and Ratio between the available total transmission duration of all subregions for belonging to outskirt of AP, the estimation which is corresponding AP are negative It carries, and calculates each channel configuration scheme pair in optional channel configuration scheme set according to the estimation load being calculated AC business demands dissatisfaction, Service disruption ratio and the average load answered, and it is full using the business demand of genetic algorithm selection AC The minimum channel configuration scheme of meaning degree, Service disruption ratio and average load, if the channel configuration scheme is currently used better than AC Channel configuration scheme, then use the channel configuration scheme, the time variation and cell edge of network service can have been considered The experience of user can effectively realize the time variation of network service and the optimization of Cell Edge User experience, improve system Performance.

Referring to Fig. 4, for the embodiment of the structure of AC in the embodiment of the present invention, including：

Receiving module 401, the business demand satisfaction that each AP for receiving AC management is sent；

First judgment module 402, the business demand that each AP for receiving AC management in receiving module 401 is sent are full After meaning degree, judge whether to need to carry out channel optimization according to business demand satisfaction；

Computing module 403, for when the determination of the first judgment module 402 needs to carry out channel optimization, being managed according to AC The estimation load of all AP calculates each corresponding internetworking of channel configuration scheme in optional channel configuration scheme set It can index；

Selecting module 404 is corresponded to for each channel configuration scheme in obtaining channel configuration scheme in computing module 403 Network performance index after, the optimal channel configuration scheme of network performance index is selected from channel configuration scheme set.

In embodiments of the present invention, the receiving module 401 in AC receives the business demand that each AP of AC management is sent Satisfaction；Then the first judgment module 402 judges whether to need to carry out channel optimization according to business demand satisfaction；And if first The determination of judgment module 402 needs to carry out channel optimization, then is loaded and counted according to the estimation of the AC all AP managed by computing module 403 Calculate each corresponding network performance index of channel configuration scheme in optional channel configuration scheme set；Finally, mould is selected Block 404 selects the optimal channel configuration scheme of network performance index from channel configuration scheme set.

AC in embodiment in order to better understand the present invention, referring to Fig. 5, for the structure of the AC in the embodiment of the present invention Another embodiment, including：

Receiving module 401 described in embodiment as shown in Figure 4, the first judgment module 402, computing module 403, selection mould Block 404, and the technology contents as shown in figure 3 described in embodiment are similar, details are not described herein again.

In embodiments of the present invention, computing module 403 is specifically used for being loaded according to the estimation of the AC all AP managed and calculate The corresponding AC business demands dissatisfaction of each channel configuration scheme, service disconnection in optional channel configuration scheme set Rate and average load；

Selecting module 404 is specifically used for selecting in AC business demands dissatisfaction, business from channel configuration scheme set The channel configuration scheme of disconnected rate and average load minimum.

In embodiments of the present invention, AC further includes：

Second judgment module 501, for judging it is advance whether the number of the currently available orthogonal channels of AC is less than or equal to The first numerical value being arranged；

If then receiving module 401 is specifically used for the number that the second judgment module 501 determines the currently available orthogonal channels of AC Less than or equal to pre-set first numerical value, the business demand satisfaction that each AP of AC management is sent is received, business needs It is the satisfaction of ensures bit rate business and the expiring for non-ensured bit rate service in all subregions based on AP to seek satisfaction The value that meaning degree obtains.

In embodiments of the present invention, AC further includes：

First load computing module 502, for each channel configuration in calculating channel configuration scheme in computing module 403 Before the corresponding network performance index of scheme, estimation loads of each AP based on all subregions is calculated；

First, which loads computing module 502, includes：

First computing module 5021 obtains all sons of AP for the transmission duration needed for each sub-regions according to AP Total transmission duration needed for region, the transmission duration needed for subregion are the rate requirements according to the user terminal in subregion The load of average value and the user terminal practical average value that can get rate, interference domain and domain transmission increases the adjacent of parameter and AP What the actual transmissions duration needed for all subregions of AP obtained；

Second computing module 5022, for the protocol efficiency factor according to the nominal rate of AP, media access control MAC layer And rate obtained by the reality of the user terminal in AP in all subregions be averaged be worth to AP all subregions it is available Total transmission duration；

Third computing module 5023, for obtaining total transmission needed for all subregions of AP in the first computing module 5021 After duration and the second computing module 5022 obtain the available total transmission duration of all subregions of AP, all sub-districts of AP are calculated Ratio between the available total transmission duration of all subregions of total transmission duration needed for domain and AP, ratio is AP based on all The estimation of subregion loads.

In embodiments of the present invention, computing module 403 includes：

4th computing module 503, for calculating the corresponding AC business demands of channel configuration option b as follows not Satisfaction：

Wherein, f_UDB(B, M) is the corresponding AC business demands dissatisfaction of channel configuration option b,For the AP of AC management_c Estimation load based on all subregions, M_cFor the AP of AC management_cSubregion sum, A_pBy the set of the AC AP managed, M is the sum of the subregion of all AP of AC management；

5th computing module 504, for calculating the corresponding Service disruption ratio of channel configuration option b as follows：

Wherein, f_SI(B, B^pre, M) and it is the corresponding Service disruption ratio of channel configuration option b, b_cTo be in channel configuration option b AP_cThe channel of distribution,For AP_cCurrently used channel,For the AP of AC management_cEstimation load based on all subregions, M_c For the AP of AC management_cSubregion sum, A_pBy the set of the AC AP managed, M is the subregion of all AP of AC management Sum；

6th computing module 505, for calculating the corresponding average load of channel configuration option b as follows：

In embodiments of the present invention, if receiving module 401 is additionally operable to the second judgment module 501 and determines that AC is currently available just It hands over the number of channel to be more than pre-set first numerical value, receives the business demand satisfaction that each AP of AC management is sent, Business demand satisfaction is satisfaction based on the ensures bit rate business in all subregions for belonging to outskirt of AP and non-guaranteed The value that the satisfaction of bit rate service obtains, the subregion for belonging to outskirt refer to the access signal of the user terminal in subregion Average value is less than the subregion of pre-set second value.

In embodiments of the present invention, AC further includes：

Second load computing module 506, for each channel configuration in calculating channel configuration scheme in computing module 403 Before the corresponding network performance index of scheme, estimation loads of each AP based on all subregions for belonging to outskirt is calculated；

Second, which loads computing module 506, includes：

7th computing module 5061 is obtained for belonging to the transmission duration needed for the subregion of outskirt according to each of AP All total transmission durations belonged to needed for the subregion of outskirt of AP, the transmission duration for belonging to the subregion of outskirt are that basis belongs to The average value and user terminal of the rate requirement of user terminal in the subregion of outskirt can get the average value of rate, interference domain It is growed when all actual transmissions belonged to needed for the subregion of outskirt for the adjacent AP that the load with domain transmission increases parameter and AP It arrives；

8th computing module 5062, for all categories according to the nominal rate of AP, the protocol efficiency factor of MAC layer and AP Being averaged for rate, which is can get, in the reality of the user terminal in the subregion of outskirt is worth to all sub-districts for belonging to outskirt of AP The available total transmission duration in domain；

9th computing module 5063, for respectively obtaining AP's in the 7th computing module 5061 and the 8th computing module 5062 When the available total transmission of all subregions for belonging to outskirt for belonging to total transmission duration and AP needed for the subregion of outskirt After length, all total transmission durations belonged to needed for the subregion of outskirt and all subregions for belonging to outskirt of AP that calculate AP can Ratio between total transmission duration, ratio are the estimation load of all subregions for belonging to outskirt of AP.

In embodiments of the present invention, computing module 403 further includes：

Tenth computing module 507, for calculating the corresponding AC business demands of channel configuration option b as follows not Satisfaction：

Wherein, f '_UDB(B, M ') is the corresponding AC business demands dissatisfaction of channel configuration option b,For AC management AP_cEstimation load based on all subregions for belonging to outskirt, M '_cFor the AP of AC management_cThe subregion for belonging to outskirt number Mesh, A_pBy the set of the AC AP managed, M ' is the sum of the subregion for belonging to outskirt of all AP of AC management；

11st computing module 508, for calculating the corresponding Service disruption ratio of channel configuration option b as follows：

Wherein, f '_SI(B, B^pre, M ') and it is the corresponding Service disruption ratio of channel configuration option b, b_cFor in channel configuration option b For AP_cThe channel of distribution,For AP_cCurrently used channel,For the AP of AC management_cBased on all subregions for belonging to outskirt Estimation load, M '_cFor the AP of AC management_cThe subregion for belonging to outskirt number, A_pBy the set of the AC AP managed, M ' For the sum of the subregion for belonging to outskirt of all AP of AC management；

12nd computing module 509, for calculating the corresponding average load of channel configuration option b as follows：

In embodiments of the present invention, AC further includes：

Distribution module 510 obtains after the channel configuration scheme for the currently available orthogonal channels of AC to be removed to selection Orthogonal channel distributes to all subregions for belonging to inner region of the AP of AC management, and the subregion for belonging to inner region refers in subregion The average value of the access signal of user terminal is greater than or equal to the subregion of pre-set second value.

In embodiments of the present invention, AC further includes：

Third judgment module 511 judges the described of selection after selecting channel configuration scheme in selecting module 404 Whether the network performance index of the optimal channel configuration scheme of network performance index is better than the currently used channel configuration sides AC The network performance index of case；

Execution module 512, the network performance index of the channel configuration scheme for determining selection in third judgment module 511 After the network performance index of the channel configuration scheme currently used better than AC, the channel configuration scheme of selection is used.

In embodiments of the present invention, the second judgment module 501 in AC judges the number of the currently available orthogonal channels of AC Whether pre-set first numerical value is less than or equal to；If the second judgment module 501 determines the currently available orthogonal channels of AC Number is less than or equal to pre-set first numerical value, then receiving module 401 receives the business that each AP of AC management is sent Demand satisfaction, the business demand satisfaction are the satisfaction of ensures bit rate business in all subregions based on AP and non- The value that the satisfaction of ensures bit rate business obtains；Then the first judgment module 402 judges whether according to business demand satisfaction It needs to carry out channel optimization；If desired channel optimization is carried out, then the first load computing module 502 calculates each AP and is based on all sons The estimation in region loads, and specific calculation is：Biography needed for each sub-regions of first computing module 5021 according to AP Defeated duration obtains total transmission duration needed for all subregions of AP, and the transmission duration needed for subregion is according in subregion The practical average value that can get rate of the average value and user terminal of the rate requirement of user terminal, interference domain and domain transmission it is negative Carry what the actual transmissions duration needed for all subregions for the adjacent AP for increasing parameter and AP obtained；Second computing module 5022 According to the user terminal in all subregions in the nominal rate of AP, the protocol efficiency factor of media access control MAC layer and AP Being averaged for rate obtained by reality is worth to the available total transmission duration of all subregions of AP；Third computing module 5023 exists First computing module 5021 obtains total transmission duration needed for all subregions of AP and the second computing module 5022 obtains AP's After all available total transmission durations of subregion, all sons of total the transmission duration and AP needed for all subregions of AP are calculated Ratio between the available total transmission duration in region, ratio are estimation loads of the AP based on all subregions.AC is being calculated After the estimation load of each AP of AC management, all AP that computing module 403 is managed according to AC are based on all subregions It is discontented that estimation load calculates the corresponding AC business demands of each channel configuration scheme in optional channel configuration scheme set Meaning degree, Service disruption ratio and average load specifically calculate the AC business demands of channel configuration scheme not by the 4th computing module 503 Satisfaction, Service disruption ratio is calculated by the 5th computing module 504, and average load is calculated by the 6th computing module 505, then, choosing It selects module 404 and selects AC business demands dissatisfaction, Service disruption ratio and average load most from channel configuration scheme set Small channel configuration scheme, and the optimal channel configuration scheme of the network performance index of selection is judged by third judgment module 511 Network performance index whether be better than the currently used channel configuration schemes of AC network performance index；And judge mould in third Block 511 determines that the network performance index of the channel configuration scheme of selection is better than the internetworking of the currently used channel configuration schemes of AC After energy index, execution module 512 uses the channel configuration scheme of selection.

In embodiments of the present invention, if the second judgment module 501 determines that the number of the currently available orthogonal channels of AC is more than Pre-set first numerical value, then the business demand satisfaction that each AP of the reception of receiving module 401 AC management is sent, business Demand satisfaction is satisfaction and non-guaranteed bit based on the ensures bit rate business in all subregions for belonging to outskirt of AP The value that the satisfaction of rate business obtains, wherein the subregion for belonging to outskirt refers to the access signal of the user terminal in subregion Average value be less than pre-set second value subregion, then the first judgment module 402 is according to business demand satisfaction Judge whether to need to carry out channel optimization；If desired channel optimization is carried out, the second load computing module 506 calculates each AP and is based on The estimation of all subregions for belonging to outskirt loads；Specifically：7th computing module 5061 belongs to outskirt according to each of AP Subregion needed for transmission duration obtain all total transmission durations belonged to needed for the subregion of outskirt of AP, belong to outskirt The transmission duration of subregion is whole according to the average value of the rate requirement of the user terminal belonged in the subregion of outskirt and user End can get the average value of rate, interference domain and domain transmission load increase parameter and AP adjacent AP all outskirts that belong to What the actual transmissions duration needed for subregion obtained；8th computing module 5062 is imitated according to the nominal rate of AP, the agreement of MAC layer The reality of user terminal in all subregions for belonging to outskirt of the rate factor and AP can get being averaged for rate and be worth to AP's All available total transmission durations of the subregion for belonging to outskirt；9th computing module 5063 is in the 7th computing module 5061 and the 8th Computing module 5062 respectively obtains all total transmission durations belonged to needed for the subregion of outskirt of AP and all of AP belong to outer After the available total transmission duration of subregion in area, calculate all total transmission durations belonged to needed for the subregion of outskirt of AP with Ratio between the available total transmission duration of all subregions for belonging to outskirt of AP, ratio is all sub-districts for belonging to outskirt of AP The estimation in domain loads.AC is after the estimation load for obtaining all subregions for belonging to outskirt based on AP, by computing module 403 Each channel configuration scheme in optional channel configuration scheme set is calculated according to the estimation load of all AP of AC management Corresponding AC business demands dissatisfaction, Service disruption ratio and average load specifically calculate AC's by the tenth computing module 507 Business demand dissatisfaction is calculated the Service disruption ratio of AC by the 11st computing module 508, is counted by the 12nd computing module 509 Calculate the average load of AC.And the optimal channel configuration scheme of the network performance index of selection is judged by third judgment module 511 Whether network performance index is better than the network performance index of the currently used channel configuration schemes of AC；And in third judgment module 511 determine that the network performance index of the channel configuration scheme of selection is better than the network performance of the currently used channel configuration schemes of AC After index, execution module 512 uses the channel configuration scheme of selection.And by distribution module 510 by currently available orthogonal of AC Channel removes all sons for belonging to inner region that the orthogonal channel obtained after the channel configuration scheme of selection distributes to the AP of AC management Region, the subregion for belonging to inner region refer to the access signal of the user terminal in subregion average value be greater than or equal to set in advance The subregion for the second value set.

Referring to Fig. 6, for one embodiment of the structure of AC in the embodiment of the present invention, including：

Processor 601, reception device 602, sending device 603, memory 604；

Wherein, reception device 602 receives the business demand satisfaction that each AP of the AC management is sent；And it is receiving After device 602 receives the business demand satisfaction of AP transmissions, processor 601 is according to business demand satisfaction judgement It is no to need to carry out channel optimization；And channel optimization is if desired carried out, it is loaded and is calculated according to the estimation of all AP of AC management Each corresponding network performance index of channel configuration scheme in optional channel configuration scheme set；And match from the channel Set the channel configuration scheme for selecting the network performance index optimal in scheme set.

Referring to Fig. 7, for the embodiment of the structure of channel configuration system in the embodiment of the present invention, including：

Access controller 701 and all access points 702 of the access controller 701 management, wherein access controller 701 be the AC described in any one figure illustrated embodiment in fig. 4 to fig. 6.

One of ordinary skill in the art will appreciate that implement the method for the above embodiments be can be with Relevant hardware is instructed to complete by program, the program can be stored in a kind of computer readable storage medium, on It can be read-only memory, disk or CD etc. to state the storage medium mentioned.

A kind of channel arrangement method provided by the present invention and system, access controller are described in detail above, For those of ordinary skill in the art, the thought of embodiment according to the present invention, in specific embodiments and applications It will change, in conclusion the content of the present specification should not be construed as limiting the invention.

Claims

1. a kind of channel arrangement method, which is characterized in that including：

If so, calculating each in optional channel configuration scheme set according to the estimation load of all AP of AC management The corresponding network performance index of channel configuration scheme, the estimation load is the value estimated the load of the AP； The network performance index includes：AC business demands dissatisfaction, Service disruption ratio and average load；

2. channel arrangement method according to claim 1, which is characterized in that described from the channel configuration scheme set The channel configuration scheme for selecting the network performance index optimal includes：

Select AC business demands dissatisfaction, Service disruption ratio and average load minimum from the channel configuration scheme set Channel configuration scheme.

3. channel arrangement method according to claim 2, which is characterized in that the method further includes：

If so, the business demand satisfaction that the access controller AC receives each AP transmissions of the AC management includes：

The business demand satisfaction that each AP of the AC management is sent is received, the business demand satisfaction is based on described The value that the satisfaction of ensures bit rate business and the satisfaction of non-ensured bit rate service in all subregions of AP obtain.

4. channel arrangement method according to claim 3, which is characterized in that all AP's according to AC management Estimation load calculate each corresponding packet-switching networks of channel configuration scheme in optional channel configuration scheme set it Before include：

Transmission duration needed for each sub-regions according to AP obtains total transmission duration needed for all subregions of the AP, Transmission duration needed for the subregion is average value and the user of the rate requirement according to the user terminal in the subregion The adjacent AP's of the practical average value that can get rate of terminal, the load increase parameter in interference domain and domain transmission and the AP is all What the actual transmissions duration needed for subregion obtained；

According to all subregions in the nominal rate of the AP, the protocol efficiency factor of media access control MAC layer and the AP Being averaged for rate obtained by the reality of interior user terminal is worth to the available total transmission duration of all subregions of the AP；

When calculating the available total transmission of all subregions of total transmission duration needed for all subregions of the AP and the AP Ratio between length, the ratio are estimation loads of the AP based on all subregions.

5. channel arrangement method according to claim 4, which is characterized in that all AP's according to AC management It is discontented that estimation load calculates the corresponding AC business demands of each channel configuration scheme in optional channel configuration scheme set Meaning degree includes：

Wherein, f_UDB(B, M) is the corresponding AC business demands dissatisfaction of the channel configuration option b,For AC management AP_cEstimation load based on all subregions, M_cFor the AP of AC management_cSubregion sum, A_pIt is managed by the AC AP set, M be the AC management all AP subregion sum.

6. channel arrangement method according to claim 4, which is characterized in that all AP's according to AC management Estimation load calculates each corresponding Service disruption ratio of channel configuration scheme in optional channel configuration scheme set：

Wherein, f_SI(B,B^pre, M) and it is the corresponding Service disruption ratio of the channel configuration option b, b_cFor the channel configuration option b In be AP_cThe channel of distribution,For AP_cCurrently used channel,For the AP of AC management_cBased on estimating for all subregions Meter load, M_cFor the AP of AC management_cSubregion sum, A_pBy the set of the AC AP managed, M is the AC The sum of the subregion of all AP of management.

7. channel arrangement method according to claim 4, which is characterized in that all AP according to AC management estimate Meter load calculates each corresponding average load of channel configuration scheme in optional channel configuration scheme set：

Wherein, f_m-load(B, M) is the corresponding average load of the channel configuration option b,For the AP of AC management_cBased on institute There is the estimation of subregion to load, A_pBy the set of the AC AP managed, | A_p| for the number of the AP of AC management, M is institute State the sum of the subregion of all AP of AC management.

8. channel arrangement method according to claim 3, which is characterized in that the method further includes：

If the number of the orthogonal channel currently available AC is more than pre-set first numerical value, the access control Device AC receives the business demand satisfaction that each AP that the AC is managed is sent：

The business demand satisfaction that each AP of the AC management is sent is received, the business demand satisfaction is based on described The satisfaction of ensures bit rate business and the satisfaction of non-ensured bit rate service in all subregions for belonging to outskirt of AP obtain The value arrived, the subregion for belonging to outskirt refer to the access signal of the user terminal in subregion average value be less than set in advance The subregion for the second value set.

9. channel arrangement method according to claim 8, which is characterized in that all AP's according to AC management Estimation load calculate each corresponding network performance index of channel configuration scheme in optional channel configuration scheme set it Before include：

Belong to the transmission duration needed for the subregion of outskirt according to each of AP and obtain all sons for belonging to outskirt of the AP The transmission duration of total transmission duration needed for region, the subregion for belonging to outskirt is the subregion for belonging to outskirt according to The average value and user terminal of the rate requirement of interior user terminal can get the negative of the average value of rate, interference domain and domain transmission What all actual transmissions durations belonged to needed for the subregion of outskirt of the adjacent AP of load increase parameter and the AP obtained；

Belonged in the subregion of outskirt according to the nominal rate of the AP, the protocol efficiency factor of MAC layer and all of the AP User terminal reality can get being averaged for rate be worth to the available total biography of all subregions for belonging to outskirt of the AP Defeated duration；

Calculate all total transmission durations belonged to needed for the subregion of outskirt and all sons for belonging to outskirt of the AP of the AP Ratio between the available total transmission duration in region, the ratio is that the estimation of all subregions for belonging to outskirt of the AP is negative It carries.

10. channel arrangement method according to claim 9, which is characterized in that all AP managed according to the AC Estimation load calculate the corresponding AC business demands of each channel configuration scheme in optional channel configuration scheme set not Satisfaction includes：

Wherein, f'_UDB(B, M') is the corresponding AC business demands dissatisfaction of the channel configuration option b,It is managed for the AC AP_cEstimation load based on all subregions for belonging to outskirt, M'_cFor the AP of AC management_cThe subregion for belonging to outskirt Number, A_pBy the set of the AC AP managed, M' is the subregion for belonging to outskirt of all AP of AC management Sum.

11. channel arrangement method according to claim 9, which is characterized in that all AP managed according to the AC Estimation load calculate each corresponding Service disruption ratio of channel configuration scheme in optional channel configuration scheme set and include：

Wherein, f'_SI(B,B^pre, M') and it is the corresponding Service disruption ratio of the channel configuration option b, b_cFor the channel configuration side It is AP in case B_cThe channel of distribution,For AP_cCurrently used channel,For the AP of AC management_cBelong to outer based on all The estimation of the subregion in area loads, M'_cFor the AP of AC management_cThe subregion for belonging to outskirt number, A_pFor the AC institutes The set of the AP of management, M' are the sum of the subregion for belonging to outskirt of all AP of AC management.

12. channel arrangement method according to claim 9, which is characterized in that all AP managed according to the AC Estimation load calculate each corresponding average load of channel configuration scheme in optional channel configuration scheme set and include：

Wherein, f'_m-load(B, M') is the corresponding average load of the channel configuration option b,For the AP of AC management_cBase It is loaded in the estimation of all subregions for belonging to outskirt, A_pBy the set of the AC AP managed, | A_p| for AC management The number of AP, M' are the sum of the subregion for belonging to outskirt of all AP of AC management.

13. channel arrangement method according to claim 8 or claim 9, which is characterized in that the method further includes：

The currently available orthogonal channels of the AC are removed to the orthogonal channel distribution obtained after the channel configuration scheme of selection To all subregions for belonging to inner region of the AP of AC management, the subregion for belonging to inner region refers to the user in subregion The average value of the access signal of terminal is greater than or equal to the subregion of pre-set second value.

14. channel arrangement method according to claim 1, which is characterized in that the method further includes：

Judge whether the network performance index of the optimal channel configuration scheme of the network performance index of selection is better than the AC The network performance index of currently used channel configuration scheme；

15. channel arrangement method according to claim 1, which is characterized in that the AC is satisfied with according to the business demand Degree judges whether that needing to carry out channel optimization includes：

The AC calculates the average value of the business demand satisfaction got；

If not, it is determined that need to carry out channel optimization.

16. channel arrangement method according to claim 1, which is characterized in that the AC is satisfied with according to the business demand Degree judges whether that needing to carry out channel optimization includes：

The business demand satisfaction got is compared with pre-set 4th numerical value by the AC respectively, is determined big In or equal to pre-set 4th numerical value the business demand satisfaction number；

It is pre-set to judge whether the ratio of the number and the number of the AC business demand satisfactions received is greater than or equal to 5th numerical value；

If not, it is determined that need to carry out channel optimization.

17. a kind of access controller AC, which is characterized in that including：

First judgment module, the business demand satisfaction that each AP for receiving the AC management in the receiving module is sent After degree, judge whether to need to carry out channel optimization according to the business demand satisfaction；

Computing module, the institute for when first judgment module determination needs to carry out channel optimization, being managed according to the AC There is the estimation load of AP to calculate each corresponding network performance of channel configuration scheme in optional channel configuration scheme set Index, the estimation load is the value estimated the load of the AP；The network performance index includes：AC business Demand dissatisfaction, Service disruption ratio and average load；

Selecting module, it is corresponding for each channel configuration scheme in obtaining the channel configuration scheme in the computing module After network performance index, the channel configuration side that selects the network performance index optimal from the channel configuration scheme set Case.

18. AC according to claim 17, which is characterized in that the AC further includes：

Second judgment module is pre-set for judging whether the number of the currently available orthogonal channels of the AC is less than or equal to The first numerical value；

If then the receiving module is specifically used for the number that second judgment module determines the currently available orthogonal channels of the AC Mesh is less than or equal to pre-set first numerical value, receives the business demand satisfaction that each AP of the AC management is sent, The business demand satisfaction is the satisfaction of ensures bit rate business in all subregions based on the AP and non-guaranteed The value that the satisfaction of bit rate service obtains.

19. AC according to claim 18, which is characterized in that the AC further includes：

First load computing module, for each channel configuration side in calculating the channel configuration scheme in the computing module Before the corresponding network performance index of case, estimation loads of each AP based on all subregions is calculated；

Described first, which loads computing module, includes：

First computing module obtains all subregions of the AP for the transmission duration needed for each sub-regions according to AP Required total transmission duration, the transmission duration needed for the subregion are the rate need according to the user terminal in the subregion The load of the practical average value that can get rate of the average value and user terminal asked, interference domain and domain transmission increases parameter and described What the actual transmissions duration needed for all subregions of the adjacent AP of AP obtained；

Second computing module, for according to the nominal rate of the AP, the protocol efficiency factor of media access control MAC layer and institute It states being averaged for rate obtained by the reality of the user terminal in AP in all subregions and is worth to all subregions of the AP Available total transmission duration；

Third computing module, for obtaining total transmission duration needed for all subregions of the AP in first computing module And after second computing module obtains the available total transmission duration of all subregions of the AP, all of the AP are calculated Ratio between the available total transmission duration of all subregions of total transmission duration needed for subregion and the AP, the ratio Being the AP, the estimation based on all subregions loads.

20. AC according to claim 19, which is characterized in that the computing module includes：

4th computing module, for calculating the corresponding AC business demands dissatisfaction of channel configuration option b as follows：

Wherein, f_UDB(B, M) is the corresponding AC business demands dissatisfaction of the channel configuration option b,For AC management AP_cEstimation load based on all subregions, M_cFor the AP of AC management_cSubregion sum, A_pIt is managed by the AC AP set, M be the AC management all AP subregion sum；

Wherein, f_SI(B,B^pre, M) and it is the corresponding Service disruption ratio of the channel configuration option b, b_cFor the channel configuration option b In be AP_cThe channel of distribution,For AP_cCurrently used channel,For the AP of AC management_cBased on estimating for all subregions Meter load, M_cFor the AP of AC management_cSubregion sum, A_pBy the set of the AC AP managed, M is the AC The sum of the subregion of all AP of management；

21. AC according to claim 18, which is characterized in that if the receiving module is additionally operable to second judgment module It determines that the number of the currently available orthogonal channels of the AC is more than pre-set first numerical value, receives the AC management The business demand satisfaction that each AP is sent, the business demand satisfaction are based on all sub-districts for belonging to outskirt of the AP Value that the satisfaction of ensures bit rate business and the satisfaction of non-ensured bit rate service in domain obtain, the outskirt that belongs to Subregion refers to that the average value of the access signal of the user terminal in subregion is less than the subregion of pre-set second value.

22. AC according to claim 21, which is characterized in that the AC further includes：

Second load computing module, for each channel configuration side in calculating the channel configuration scheme in the computing module Before the corresponding network performance index of case, estimation loads of each AP based on all subregions for belonging to outskirt is calculated；

Described second, which loads computing module, includes：

7th computing module obtains the AP's for belonging to the transmission duration needed for the subregion of outskirt according to each of AP The transmission duration of all total transmission durations belonged to needed for the subregion of outskirt, the subregion for belonging to outskirt is according to Belong to the average value of the rate requirement of the user terminal in the subregion of outskirt and user terminal can get the average value of rate, do The load for disturbing domain and domain transmission increases parameter and all practical biographies belonged to needed for the subregion of outskirt of the adjacent AP of the AP What defeated duration obtained；

8th computing module, for all categories according to the nominal rate of the AP, the protocol efficiency factor of MAC layer and the AP Being averaged for rate, which is can get, in the reality of the user terminal in the subregion of outskirt is worth to all outskirts that belong to of the AP The available total transmission duration of subregion；

9th computing module, for respectively obtaining all of the AP in the 7th computing module and the 8th computing module When belonging to the available total transmission of all subregions for belonging to outskirt of the total transmission duration and the AP needed for the subregion of outskirt After length, all outskirts that belong to of all total transmission durations belonged to needed for the subregion of outskirt of the AP and the AP are calculated Ratio between the available total transmission duration of subregion, the ratio is the estimation of all subregions for belonging to outskirt of the AP Load.

23. AC according to claim 22, which is characterized in that the computing module further includes：

Tenth computing module, for calculating the corresponding AC business demands dissatisfaction of channel configuration option b as follows：

Wherein, f'_UDB(B, M') is the corresponding AC business demands dissatisfaction of the channel configuration option b,It is managed for the AC AP_cEstimation load based on all subregions for belonging to outskirt, M'_cFor the AP of AC management_cThe subregion for belonging to outskirt Number, A_pBy the set of the AC AP managed, M' is the subregion for belonging to outskirt of all AP of AC management Sum；

Wherein, f'_SI(B,B^pre, M') and it is the corresponding Service disruption ratio of the channel configuration option b, b_cFor the channel configuration side It is AP in case B_cThe channel of distribution,For AP_cCurrently used channel,For the AP of AC management_cBelong to outer based on all The estimation of the subregion in area loads, M'_cFor the AP of AC management_cThe subregion for belonging to outskirt number, A_pFor the AC institutes The set of the AP of management, M' are the sum of the subregion for belonging to outskirt of all AP of AC management；

24. the AC according to claim 22 or 23, which is characterized in that the AC further includes：

Distribution module obtains after the channel configuration scheme for the currently available orthogonal channels of the AC to be removed to selection Orthogonal channel distributes to all subregions for belonging to inner region of the AP of the AC management, and the subregion for belonging to inner region refers to son The average value of the access signal of user terminal in region is greater than or equal to the subregion of pre-set second value.

25. AC according to claim 17, which is characterized in that the AC further includes：

Third judgment module judges the internetworking of selection after selecting channel configuration scheme in the selecting module Whether the network performance index of the energy optimal channel configuration scheme of index is better than the currently used channel configuration schemes of the AC Network performance index；

Execution module, for determining that the network performance index of the selected channel configuration scheme is excellent in the third judgment module After the network performance index of channel configuration the scheme currently used AC, referred to using the selected network performance Mark optimal channel configuration scheme.

26. a kind of channel configuration system, which is characterized in that including：Access control as described in any one of claim 17 to 25 All access point AP of device AC processed and AC management.