CN104349480A - Wireless network channel assignment method, device, and system - Google Patents

Wireless network channel assignment method, device, and system Download PDF

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CN104349480A
CN104349480A CN 201310329461 CN201310329461A CN104349480A CN 104349480 A CN104349480 A CN 104349480A CN 201310329461 CN201310329461 CN 201310329461 CN 201310329461 A CN201310329461 A CN 201310329461A CN 104349480 A CN104349480 A CN 104349480A
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ap
interference
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information
according
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CN 201310329461
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肖文平
王舜禹
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华为技术有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATIONS NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/04Wireless resource allocation
    • H04W72/08Wireless resource allocation where an allocation plan is defined based on quality criteria
    • H04W72/082Wireless resource allocation where an allocation plan is defined based on quality criteria using the level of interference

Abstract

The embodiment of the invention provides a wireless network channel assignment method, device, and system. The wireless network channel assignment method comprises that a centralized controller receives signal interference information interfered with by an adjacent AP and reported by at least one AP in a preset domain; that the centralized controller receives load information reported by the at least one AP; that the centralized controller determines comprehensive interference values of the APs according to the received the signal interference information reported by the APs in the at least one AP and the load information of the APs; that the centralized controller determines the target channels of the APs according to the comprehensive interference values of the at least one AP, and transmits the indicative information of the target channels of the APs to the APs. The wireless network channel assignment method achieves more reasonable wireless network channel assignment and especially optimizes channel assignment in dense placement scenes.

Description

无线网络信道分配方法、装置及系统 Wireless LAN channel allocation method, apparatus and system for

技术领域 FIELD

[0001] 本发明实施例涉及通信技术,尤其涉及一种无线网络信道分配方法、装置及系统。 Embodiment [0001] The present invention relates to communication technology, and particularly relates to a radio network channel allocation method, apparatus and system.

背景技术 Background technique

[0002] 目前无线局域网(Wireless Local Access Network,简称WLAN)主要工作在2. 4GHz或者5GHz的无牌频段上,但2. 4GHz或者5GHz的信道数目是有限的,如在2. 4GHz的信道上共有13个信道,但互不干扰的信道只有信道1、信道6和信道11。 [0002] It WLAN (Wireless Local Access Network, abbreviated WLAN) working mainly in the 2. 4GHz band or unlicensed 5GHz, but the number of channels 2. 4GHz or 5GHz is limited, as the channel 2. 4GHz a total of 13 channels, but only the non-interfering channel channel 1, channel 6 and channel 11. 但是随着WLAN设备的广泛普及,接入点(Access Point,简称AP)密度越来越大,有限的信道数量将不可避免的产生AP间的相互干扰和竞争,从而导致网络整体的吞吐量下降。 However, with the widespread adoption of WLAN equipment, an access point (Access Point, abbreviated AP) density increases, the limited number of channels will inevitably interfere with each other and the competition between the AP, resulting in decrease in throughput of the entire network .

[0003] 为了解决上述问题,提高网络的整体性能,现有技术是采用以AP最小的信号干扰I:匕(Signal to Interference Ratio,简称SIR)作为WLAN信道分配的依据,并应用模拟退火算法求解获取最优的WLAN信道分配方式。 [0003] In order to solve the above problems, to improve the overall performance of the network, the prior art is employed to AP the minimum signal to interference I: according dagger (Signal to Interference Ratio, referred to as SIR) allocated as a WLAN channel, and simulated annealing algorithm WLAN obtain optimal channel allocation method. 其中,对AP之间SIR的测量是通过设置观测点(Observation Point,简称0P)进行SIR采样实现的,以此判断信道间干扰的大小,即如果某一AP在其OP处的SIR很低,则表明该AP与附近其他AP之间的干扰很大。 Wherein the measured SIR is SIR between the AP by setting observation points (Observation Point, abbreviated 0P) sampling implemented in order to determine the size of the inter-channel interference, i.e. if a low SIR AP at its OP in, it means that a lot of interference between the AP and other nearby AP.

[0004] 但是,上述现有技术中,在对WLAN信道分配时仅考虑了AP之间的接收信号强度指示(Received Signal Strength Indication,简称RSSI),而没有综合考虑其他可能影响AP 间干扰的因素,所以对WLAN信道的分配性能不高。 [0004] However, the above-described prior art, when the allocation of the WLAN channel is only considered a received signal strength indication between the AP (Received Signal Strength Indication, referred to as the RSSI), without considering other factors may affect the interference between AP , the distribution performance of the WLAN channel is not high.

发明内容 SUMMARY

[0005] 本发明实施例提供一种无线网络信道分配方法、装置及系统,以解决无线网络信道的分配无法实现整体干扰最低的问题,以提高无线网络信道整体分配性能。 Embodiment [0005] The present invention provides a radio network channel allocation method, apparatus and system to solve the problem of allocating wireless network lowest channel interference can not be achieved overall, the wireless network to improve the overall performance of the channel assignment.

[0006] 第一方面,本发明实施例提供一种无线网络信道分配方法,包括: [0006] In a first aspect, embodiments of the present invention provides a wireless channel assignment method, comprising:

[0007] 集中控制器接收预设域内的至少一个接入点AP上报的受相邻AP干扰的信号干扰信息; [0007] The centralized controller receives at least a predetermined domain access point by the neighbor AP information of the interference signal interference reported by the AP;

[0008] 所述集中控制器接收所述至少一个AP上报的负载信息; [0008] The centralized controller receives the load information reported by the at least one AP;

[0009] 所述集中控制器根据接收到的所述至少一个AP中各AP上报的所述信号干扰信息和所述各AP的负载信息确定所述各AP的综合干扰值; [0009] The centralized controller determines that the integrated value of the interference load of each AP according to the received information to the at least one AP in each AP to report the interference information signal and each of the AP;

[0010] 所述集中控制器根据所述至少一个AP的综合干扰值确定所述各AP的目标信道, 并分别将所述各AP的目标信道的指示信息发送给所述各AP。 [0010] The central controller determines from the at least one AP Integrated interference value of the target channel of each AP and the information indicating each target channel to each AP transmits each of the AP.

[0011] 在第一方面的第一种可能的实现方式中,所述集中控制器接收所述至少一个AP 上报的负载信息,包括: [0011] In a first possible implementation manner of the first aspect, the centralized controller receives the load information reported by the at least one AP, comprising:

[0012] 所述集中控制器接收所述至少一个AP周期性上报的所述负载信息。 [0012] The centralized controller receives the load information periodically reported by the at least one AP.

[0013] 根据第一方面或第一方面的第一种可能的实现方式,在第二种可能的实现方式中,所述集中控制器接收预设域内的至少一个AP上报的受相邻AP干扰的信号干扰信息之前,还包括: [0013] According to the first aspect or the first possible implementation of the first aspect, in a second possible implementation, the centralized controller receives at least a predetermined region of AP interference reported by the neighboring AP prior to signal interference information, further comprising:

[0014] 所述集中控制器在达到预设触发条件时,向预设域内的至少一个AP依次发送邻居探测指示信息,以指示所述至少一个AP中各AP通过变换信道探测相邻AP对所述各AP 产生干扰的信号强度; [0014] The centralized controller upon reaching a predetermined trigger condition, the at least one neighbor AP transmits the probe sequence to the preset indication information domain, to indicate that the at least one AP in each AP through the AP changing channels on the neighbor sounding said signal strength of each AP interfere;

[0015] 所述集中控制器接收预设域内的至少一个AP上报的受相邻AP干扰的信号干扰信息,包括: [0015] The centralized controller receives interference information signals by at least one neighbor AP AP interference reported by the predetermined domain, comprising:

[0016] 所述集中控制器接收所述至少一个AP返回的邻居探测结果,所述邻居探测结果包括所述至少一个AP中各AP探测到的相邻AP对所述各AP产生干扰的信号强度。 [0016] The concentration of at least one neighbor AP detection result returned by the receiving controller, the neighbor detection result including the at least one AP in each AP detected interference to the neighbor AP signal strength of each AP .

[0017] 根据第一方面、第一方面的第一种至第二种可能的实现方式,在第三种可能的实现方式中,所述集中控制器根据接收到的所述至少一个AP中各AP上报的所述信号干扰信息和所述各AP的负载信息确定所述各AP的综合干扰值,包括: [0017] According to a first aspect, the first to the second possible implementation of the first aspect, in a third possible implementation, the centralized controller according to the received at least one AP each AP reported by the signal interference information and the load information of each AP determines that the integrated value of each AP of the interference, comprising:

[0018] 所述集中控制器根据公式SijIkiXdij计算所述各AP的综合干扰值,其中S ij为所述至少一个AP中第i个AP受到相邻的第j个AP干扰的综合干扰值,Iii为根据所述第i个AP上报的负载信息确定的负载值,Clij为所述第i个AP受到所述第j个AP干扰的信号干扰信息确定的信号干扰值。 [0018] The centralized controller calculates the integrated values ​​of the disturbance according to the formula AP SijIkiXdij, wherein said at least one S ij is the i-th AP AP interference by the integrated value of the j-th adjacent AP interference, Iii the load value of the i-th AP reported by the determined load information, Clij AP is the i-th value of signal interference by the interference of the j-th signal interference information AP determined.

[0019] 根据第一方面、第一方面的第一种至第二种可能的实现方式,在第四种可能的实现方式中,所述邻居探测指示信息还用于指示所述各AP通过变换信道探测相邻AP的基本服务集标识BSSID和服务集标识SSID,则所述邻居探测结果还包括所述各AP探测到的相邻AP 的BSSID 和SSID ; [0019] According to a first aspect, the first to the second possible implementation of the first aspect, in a fourth possible implementation manner, the probe neighbor indication information for indicating the further transformed by each AP basic service set channel sounding neighboring AP BSSID identifier and a service set identifier SSID, then the neighbor detection result further comprises the respective detected neighboring AP BSSID of the AP and the SSID;

[0020] 所述集中控制器根据接收到的所述至少一个AP中各AP上报的所述信号干扰信息和所述各AP的负载信息确定所述各AP的综合干扰值,包括: [0020] The centralized controller determines that the integrated value of the interference of each AP, comprising according to the received at least one AP in each AP reported by the signal interference information and load information of each AP of:

[0021] 所述集中控制器根据接收到所述至少一个AP中第i个AP上报的相邻的第j个AP 的BSSID,确定所述第j个AP是否为所述预设域内的AP ; [0021] The centralized controller according to the received at least one AP in the i-th AP reported by the j-th adjacent AP's BSSID, of the j-th AP determines whether the preset AP domain;

[0022] 若是,则根据公式Sfki X Clij计算所述第i个AP的综合干扰值,其中Sij为所述第i个AP受到所述第j个AP干扰的综合干扰值,Iii为根据所述第i个AP上报的负载信息确定的负载值,Cli j为所述第i个AP受到所述第j个AP干扰的信号干扰信息确定的信号干扰值; [0022] If the integrated value of the interference, the interference is calculated according to the integrated value of the i-th AP formula Sfki X Clij, wherein Sij by the j-th interfering AP is the i-th AP, according to the Iii the i-th AP load information reported by the determined load value, Cli j is the i-th AP interference signal by the interference of the signal value of the j-th interfering AP information determined;

[0023] 若否,则根据公式SifkiXdijXhj计算所述第i个AP的综合干扰值,其中S ij为所述第i个AP受到所述第j个AP干扰的综合干扰值,Iii为根据所述第i个AP上报的负载信息确定的负载值,Cl ij为所述第i个AP受到所述第j个AP干扰的信号干扰信息确定的信号干扰值,hj为比例因子,所述Ilj的大小是由所述集中控制器根据所述第j个AP的SSID确定的。 [0023] If not, then calculates the integrated value of the i th interference AP according to the formula SifkiXdijXhj, where S ij is the i-th AP by the integrated value of the j-th interfering AP interference, according to the Iii the i-th AP load information reported by the determined load value, Cl ij of the i-th AP interference signal by the interference of the signal value of the j-th interfering AP information determined, HJ is the scale factor, the magnitude of the Ilj the centralized controller is determined according to the j-th SSID of the AP.

[0024] 根据第一方面的第三种或第四种可能的实现方式,在第五种可能的实现方式中, 所述第i个AP受到所述第j个AP干扰的信号干扰信息包括所述第i个AP受到所述第j 个AP干扰的信号强度,所述方法还包括: Signal interference information [0024] According to a first aspect of the third or fourth possible implementation mode, in a fifth possible implementation manner, the i-th AP by the AP j-th interference comprises the signal strength, the method described by the i-th AP AP j-th interference further comprises:

[0025] 根据所述第i个AP受到所述第j个AP干扰的信号强度和公式 [0025] According to the i-th AP AP by the j-th interfering signal strength and formulas

Figure CN104349480AD00081

[0027] 其中,B为所述第i个AP受到所述第j个AP干扰的信号强度,By、By+1和Bm分别为预设的由小到大的第1个、第y个、第y+1个和第m个信号强度门限值,m为设置的信号强度门限值的个数。 [0027] wherein, B represents the i-th AP AP by the j-th interfering signal strength, By, By + 1 and Bm respectively preset first ascending 1, y-th, the first y + 1 th and m-th signal strength threshold, m is the signal strength of the door set threshold number.

[0028] 根据第一方面的第三种至第五种可能的实现方式,在第六种可能的实现方式中, 所述第i个AP上报的负载信息包括下述信息中的至少一种:占空比、关联用户数、并发用户数和流量。 [0028] According to the third through fifth possible implementation of the first aspect, in a sixth possible implementation manner, the i-th AP reported load information comprises at least one information: duty cycle associated with the number of users, number of concurrent users and traffic.

[0029] 根据第一方面的第六种可能的实现方式,在第七种可能的实现方式中,当所述负载信息包括所述占空比时,所述方法还包括: [0029] According to a sixth possible implementation of the first aspect, in the seventh possible implementation manner, when the load information includes the duty cycle, the method further comprising:

[0030] 根据所述第i个AP上报的占空比和公另 [0030] The other reported by the i-th AP and the duty ratio of male

Figure CN104349480AD00091

计算得出所述第i个AP的负载值; Calculated load value of the i-th AP;

[0031] 其中,Dx为所述第i个AP的第X个时间段的占空比,Ax为所述第X个时间段的占空比的加权因子,且满足 [0031] wherein, Dx is the duty of the i-th time period X of the AP, as Ax of the X-th period of the duty ratio weighting factor, and satisfying

Figure CN104349480AD00092

η为选取的时间段的总个数。 η is the total number of the selected time period.

[0032] 根据第一方面、第一方面的第一种至第七种可能的实现方式,在第八种可能的实现方式中,所述集中控制器根据所述至少一个AP的综合干扰值确定所述各AP的目标信道, 包括: [0032] According to a first aspect, the first possible implementation to the seventh embodiment of the first aspect, in the eighth possible implementation manner, the centralized controller determines said at least one integrated disturbance value of AP each of the target AP channel, comprising:

[0033] 所述集中控制器将所述至少一个AP的综合干扰值组成干扰矩阵,并将所述干扰矩阵与初始选取的信道分配矩阵相结合得到初始总干扰值; [0033] The centralized controller of the at least one interfering AP integrated value interference matrix composition, and the interference matrix and an initial allocation matrix selected channel combination to obtain an initial total interference value;

[0034] 所述集中控制器利用模拟退火算法将所述初始总干扰值作为模拟退火算法的初始内能,随机选取信道分配矩阵与所述干扰矩阵作为所述模拟退火算法的新内能,经过预设迭代最终确定所述各AP的目标信道。 The controller uses simulated annealing algorithm [0034] The initial concentration of the total interference value as the initial simulated annealing algorithm can be randomly selected channel allocation matrix as a matrix of the interference within the new simulated annealing algorithm can, after determining a target preset final iteration of the channel of each AP.

[0035] 根据第一方面的第八种可能的实现方式,在第九种可能的实现方式中,将上一次确定的信道分配方案对应的信道分配矩阵确定为本次所述初始选取的信道分配矩阵。 [0035] According to an eighth possible implementation of the first aspect, in the ninth possible implementation manner, the last determined channel allocation scheme corresponding to the channel assignment matrix to determine the time-based channel assignment selected initial matrix.

[0036] 第二方面,本发明实施例提供一种无线网络信道分配方法,包括: [0036] a second aspect, embodiments of the present invention provides a wireless channel assignment method, comprising:

[0037] 接入点AP向集中控制器上报所述AP受相邻AP干扰的信号干扰信息; [0037] interference signals reported by the access point AP receiving neighbor AP of the AP information to the centralized controller interference;

[0038] 所述AP向所述集中控制器上报所述AP的负载信息; [0038] The AP of the AP to report load information to the centralized controller;

[0039] 所述AP接收所述集中控制器发送的目标信道的指示信息,并判断当前使用的信道与所述指示信息指示的目标信道是否一致,若否,则将所述目标信道作为新的使用信道, 所述目标信道是所述集中控制器根据各AP上报的信号干扰信息和负载信息确定的。 [0039] AP receives information indicating the target channel transmitted from the centralized controller, and determines whether the channel currently used and the indication information is consistent with the target channel, if not, then the target channel as a new using the channel, the target channel is determined based on the centralized controller AP reported by the respective signal to interference information, and loading information.

[0040] 在第二方面的第一种可能的实现方式中,所述AP向所述集中控制器上报所述AP 的负载信息,包括: [0040] In a first possible implementation of the second aspect, the load of the AP to report the AP information to the centralized controller, comprising:

[0041] 所述AP周期性的向所述集中控制器上报所述AP的负载信息。 [0041] The AP periodically reported to the centralized controller load of the AP information.

[0042] 根据第二方面或第二方面的第一种可能的实现方式,在第二种可能的实现方式中,所述AP向集中控制器上报所述AP受相邻AP干扰的信号干扰信息,包括: [0042] According to a second aspect, the first possible implementation of the second aspect, in a second possible implementation, the AP signal interference information reported by the AP to the neighbor AP interference centralized controller ,include:

[0043] 所述AP根据接收到的所述集中控制器发送的邻居探测指示信息,向相邻AP发起邻居探测,所述邻居探测包括探测所述相邻AP对所述AP产生干扰的信号强度; [0043] According to the neighbor AP information indicating the detection of the received transmission centralized controller, initiates neighbor to neighbor AP detection, the neighbor detecting comprises detecting the interference to neighboring AP signal strength of the AP ;

[0044] 所述AP将所述邻居探测的结果发送给所述集中控制器,所述邻居探测的结果包括所述AP探测到的相邻AP对所述AP产生干扰的信号强度。 [0044] The results of the neighbor AP transmits the probe to the centralized controller, a result of the neighbor AP detecting comprises detecting the signal strength of neighboring AP interfere with the AP.

[0045] 根据第二方面的第二种可能的实现方式,在第三种可能的实现方式中,所述邻居探测还包括探测所述相邻AP的基本服务集标识BSSID和服务集标识SSID,则所述邻居探测的结果还包括所述探测到的相邻AP的BSSID和SSID。 [0045] According to a second aspect of a second possible implementation manner, in a third possible implementation, the neighbor detecting further comprises detecting said neighboring AP BSSID Basic Service Set Identifier and the SSID Service Set Identifier, then the neighbor detection result of said detecting further comprises adjacent to the AP BSSID and SSID.

[0046] 根据第二方面或第二方面的第一种至第三种可能的实现方式,在第四种可能的实现方式中,所述AP的负载信息包括下述信息中的至少一种:占空比、关联用户数、并发用户数和流量。 [0046] According to a second aspect, the first to third possible implementation of the second aspect, in a fourth possible implementation manner, the load of the AP information includes at least one of the following information: duty cycle associated with the number of users, number of concurrent users and traffic.

[0047] 第三方面,本发明实施例提供一种集中控制器,包括: [0047] a third aspect, embodiments of the present invention provides a centralized controller, comprising:

[0048] 第一接收模块,用于接收预设域内的至少一个接入点AP上报的受相邻AP干扰的信号干扰信息; [0048] a first receiving module, configured to receive the at least one predetermined access point AP within the AP reported by the adjacent interference signal to interference information;

[0049] 第二接收模块,用于接收所述至少一个AP上报的负载信息; [0049] The second receiving module, for receiving the load information, reported by the at least one AP;

[0050] 计算模块,用于根据接收到的所述至少一个AP中各AP上报的所述信号干扰信息和所述各AP的负载信息确定所述各AP的综合干扰值; [0050] calculation means for loading information according to the received at least one AP in each AP signal interference information reported by the AP and each of said interference determining the integrated value of each AP;

[0051] 处理模块,用于根据所述至少一个AP的综合干扰值确定所述各AP的目标信道,并分别将所述各AP的目标信道的指示信息发送给所述各AP。 [0051] The processing module according to at least one AP Integrated interference value is determined for each of the target channel of the AP, and information indicating the respective target channel of each AP transmits to each of the AP.

[0052] 在第三方面的第一种可能的实现方式中,所述第二接收模块具体用于:接收所述至少一个AP周期性上报的所述负载信息。 [0052] In a first possible implementation manner of the third aspect, the second receiving module is configured to: receive the load information periodically reported by the at least one AP.

[0053] 根据第三方面或第三方面的第一种可能的实现方式,在第二种可能的实现方式中,所述第一接收模块具体用于:在达到预设触发条件时,向预设域内的至少一个AP依次发送邻居探测指示信息,以指示所述至少一个AP中各AP通过变换信道探测相邻AP对所述各AP产生干扰的信号强度;接收所述至少一个AP返回的邻居探测结果,所述邻居探测结果包括所述至少一个AP中各AP探测到的相邻AP对所述各AP产生干扰的信号强度。 [0053] According to a third aspect or the first possible implementation of the third aspect, in a second possible implementation manner, the first receiving module is configured to: upon reaching a predetermined trigger condition, the pre sequentially transmitting at least one AP arranged in the art neighbor sounding instruction information, to instruct each of the at least one AP AP converted by the signal intensity detecting adjacent channel interference to the AP in each AP; receiving the at least one neighbor AP return detection result, the detection result of the neighbor AP comprises at least one of each neighboring AP AP detected interfering signal strength for each of the AP.

[0054] 根据第三方面、第三方面的第一种至第二种可能的实现方式,在第三种可能的实现方式中,所述计算模块具体用于:根据公式S ij=Ici X Clij计算所述各AP的综合干扰值,其中Sij为所述至少一个AP中第i个AP受到相邻的第j个AP的综合干扰值,h为根据所述第i个AP上报的负载信息确定的负载值,Clij为所述第i个AP受到所述第j个AP干扰的信号干扰信息确定的信号干扰值。 [0054] According to a third aspect, the first to the second possible implementation of the third aspect, in a third possible implementation, the computing module is configured to: according to the formula S ij = Ici X Clij calculating the integrated values ​​of the interference of the AP, wherein the at least one AP Sij is the i-th AP interference by the integrated value of the j-th adjacent to the AP, h is determined according to the i-th AP load information reported the load value for the i-th AP by the AP of the j-th interfering signal to interference signal interference value information Clij determined.

[0055] 根据第三方面、第三方面的第一种至第二种可能的实现方式,在第四种可能的实现方式中,所述邻居探测指示信息还用于指示所述各AP通过变换信道探测相邻AP的基本服务集标识BSSID和服务集标识SSID,则所述邻居探测结果还包括所述各AP探测到的相邻AP的BSSID和SSID,则所述计算模块具体用于: [0055] According to a third aspect, the first to the second possible implementation of the third aspect, in a fourth possible implementation manner, the probe neighbor indication information for indicating the further transformed by each AP channel sounding neighboring AP BSSID basic service set identifier and a service set identifier SSID, then the detection result further comprises a neighbor AP of the respective detected neighboring AP BSSID and SSID, then the calculation module is configured to:

[0056] 根据接收到所述至少一个AP中第i个AP上报的相邻的第j个AP的BSSID,确定所述第j个AP是否为所述预设域内的AP ; [0056] The received BSSID of the AP j-th adjacent at least one of the i-th AP reported by the AP, the j-th AP determines whether the preset AP domain;

[0057] 若是,则根据公式Sfki X Clij计算所述第i个AP的综合干扰值,其中Sij为所述第i个AP受到所述第j个AP干扰的综合干扰值,Iii为根据所述第i个AP上报的负载信息确定的负载值,Cl ij为所述第i个AP受到所述第j个AP干扰的信号干扰信息确定的信号干扰值; [0057] If the integrated value of the interference, the interference is calculated according to the integrated value of the i-th AP formula Sfki X Clij, wherein Sij by the j-th interfering AP is the i-th AP, according to the Iii signal interference information signal interference value determined in the i-th AP load information reported by the determined load value, Cl ij of the i-th AP by the j-th interfering AP;

[0058] 若否,则根据公式SfkiXdijXhj计算所述第i个AP的综合干扰值,其中S ij为所述第i个AP受到所述第j个AP干扰的综合干扰值,Iii为根据所述第i个AP上报的负载信息确定的负载值,Cl ij为所述第i个AP受到所述第j个AP干扰的信号干扰信息确定的信号干扰值,hj为比例因子,所述hj的大小是由所述集中控制器根据所述第j个AP的SSID确定的。 [0058] If not, then calculates the integrated value of the i th interference AP according to the formula SfkiXdijXhj, where S ij is the i-th AP by the integrated value of the j-th interfering AP interference, according to the Iii the i-th AP load information reported by the determined load value, Cl ij of the i-th AP interference signal by the interference of the signal value of the j-th interfering AP information determined, hj is the scale factor, the magnitude hj the centralized controller is determined according to the j-th SSID of the AP.

[0059] 根据第三方面的第三种或第四种可能的实现方式,在第五种可能的实现方式中, 所述第i个AP受到所述第j个AP干扰的信号干扰信息包括所述第i个AP受到所述第j 个AP干扰的信号强度,所述计算模块还用于: Signal interference information [0059] According to a third aspect of the third or fourth possible implementation mode, in a fifth possible implementation manner, the i-th AP by the AP j-th interference comprises the said i-th AP AP by the j-th interfering signal strength, the computing module is further configured to:

[0060] 根据所述第i个AP受到所述第j个AP干扰的信号强度和公式 [0060] According to the i-th AP AP by the j-th interfering signal strength and formulas

Figure CN104349480AD00111

[0062] 其中,B为所述第i个AP受到所述第j个AP干扰的信号强度,By、By+1和B m分别为预设的由小到大的第1个、第y个、第y+1个和第m个信号强度门限值,m为设置的信号强度门限值的个数。 [0062] wherein, B represents the i-th AP AP by the j-th interfering signal strength, By, By + 1 and B m are preset in ascending 1st, y-th the first y + 1 th and m-th signal strength threshold, the signal strength of the door m is the number of the set value.

[0063] 根据第三方面的第三种至第五种可能的实现方式,在第六种可能的实现方式中, 所述第i个AP上报的负载信息包括下述信息中的至少一种:占空比、关联用户数、并发用户数和流量。 [0063] According to the third through fifth possible implementation of the third aspect, in a sixth possible implementation manner, the i-th AP reported load information comprises at least one information: duty cycle associated with the number of users, number of concurrent users and traffic.

[0064] 根据第三方面的第六种可能的实现方式,在第七种可能的实现方式中,当所述负 [0064] According to a sixth possible implementation manner of the third aspect, in the seventh possible implementation manner, when the negative

Figure CN104349480AD00112

载信息包括所述占空比时,所述计算模块还用于: When the information carrier comprises the duty cycle, the computing module is further configured to:

[0065] 根据所述第i个AP上报的占空比和公式计算得出所述第i个AP的负载值; [0065] The calculated value of the i-th load of the AP according to the duty and the i-th AP formula reported;

[0066] 其中,Dx为所述第i个AP的第X个时间段的占空比,Ax为所述第X个时间段的占空比的加权因子,且满足 [0066] wherein, Dx is the duty of the i-th time period X of the AP, as Ax of the X-th period of the duty ratio weighting factor, and satisfying

Figure CN104349480AD00113

η为选取的时间段的总个数。 η is the total number of the selected time period.

[0067] 根据第三方面、第三方面的第一种至第七种可能的实现方式,在第八种可能的实现方式中,处理模块具体用于:将所述至少一个AP的综合干扰值组成干扰矩阵,并将所述干扰矩阵与初始选取的信道分配矩阵相结合得到初始总干扰值;利用模拟退火算法将所述初始总干扰值作为模拟退火算法的初始内能,随机选取信道分配矩阵与所述干扰矩阵作为所述模拟退火算法的新内能,经过预设迭代最终确定所述各AP的目标信道。 [0067] According to a third aspect, the first to seventh possible implementation of the third aspect, in the eighth possible implementation, the processing module is configured to: at least one of said integrated value AP of interference interference matrix composition, and the interference matrix and an initial allocation matrix selected channel combination to obtain an initial total interference value; simulated annealing algorithm to the initial value as the initial total interference simulated annealing algorithm can be randomly selected channel allocation matrix as the interference matrix within said new simulated annealing algorithm can, for a preset iteration ultimately determine the target channel of each AP.

[0068] 根据第三方面的第八种可能的实现方式,在第九种可能的实现方式中,将上一次确定的信道分配方案对应的信道分配矩阵确定为本次所述初始选取的信道分配矩阵。 [0068] The eighth possible implementation of the third aspect, in the ninth possible implementation manner, the last determined channel allocation scheme corresponding to the channel assignment matrix to determine the time-based channel assignment selected initial matrix.

[0069] 第四方面,本发明实施例提供一种接入点,包括: [0069] a fourth aspect, embodiments of the present invention provides an access point, comprising:

[0070] 第一上报模块,用于向集中控制器上报接入点AP受相邻AP干扰的信号干扰信息; [0070] a first reporting module configured to report interference information signal by the access point AP to the neighbor AP interference centralized controller;

[0071] 第二上报模块,用于向所述集中控制器上报所述AP的负载信息; [0071] a second reporting module adapted to report a load of the AP information to the centralized controller;

[0072] 接收模块,用于接收所述集中控制器发送的目标信道的指示信息,并判断当前使用的信道与所述指示信息指示的目标信道是否一致,若否,则将所述目标信道作为新的使用信道,所述目标信道是所述集中控制器根据各AP上报的信号干扰信息和负载信息确定的。 [0072] a receiving module, information indicating the target channel transmitted from the controller receives the focus, and determines whether the channel currently used and the indication information is consistent with the target channel, if not, then the target channel as the new channel is used, the target channel is determined based on the centralized controller AP reported by the respective signal to interference information, and loading information.

[0073] 在第四方面的第一种可能的实现方式中,所述第二上报模块具体用于:周期性的向所述集中控制器上报所述AP的负载信息。 [0073] In a first possible implementation manner of the fourth aspect, the second reporting module is configured to: periodically reported to the centralized controller load of the AP information.

[0074] 根据第四方面或第四方面的第一种可能的实现方式,在第二种可能的实现方式中,所述第一上报模块具体用于:根据接收到的所述集中控制器发送的邻居探测指示信息, 向相邻AP发起邻居探测,所述邻居探测包括探测所述相邻AP对所述AP产生干扰的信号强度;将所述邻居探测的结果发送给所述集中控制器,所述邻居探测的结果包括所述AP探测到的相邻AP对所述AP产生干扰的信号强度。 [0074] According to the fourth aspect or the second possible implementation of the fourth aspect, in a second possible implementation, the first reporting module is configured to: transmit according to the received centralized controller neighbor sounding instruction information, the neighbor AP initiates neighbor detection, the neighbor detecting signal strength of the interfering AP comprises detecting said adjacent AP; the neighbor detection result is sent to the centralized controller, the neighbor detection result includes signal strength of the detected neighbor AP AP interfering with the AP.

[0075] 根据第四方面的第二种可能的实现方式,在第三种可能的实现方式中,所述邻居探测还包括探测所述相邻AP的基本服务集标识BSSID和服务集标识SSID,则所述邻居探测的结果还包括所述探测到的相邻AP的BSSID和SSID。 [0075] According to a fourth aspect of a second possible implementation manner, in a third possible implementation, the neighbor detecting further comprises detecting said neighboring AP BSSID Basic Service Set Identifier and the SSID Service Set Identifier, then the neighbor detection result of said detecting further comprises adjacent to the AP BSSID and SSID.

[0076] 根据第四方面或第四方面的第一种至第三种可能的实现方式,在第四种可能的实现方式中,所述AP的负载信息包括下述信息中的至少一种:占空比、关联用户数、并发用户数和流量。 [0076] According to the fourth aspect or the first to third possible implementation of the fourth aspect, in a fourth possible implementation manner, the load of the AP information includes at least one of the following information: duty cycle associated with the number of users, number of concurrent users and traffic.

[0077] 第五方面,本发明实施例提供一种无线网络信道分配系统,包括本发明任意实施例所提供的集中控制器和本发明任意实施例所提供的接入点。 [0077] a fifth aspect, embodiments provide a wireless channel assignment system according to the present invention, including the examples provided and the central controller of the present invention to any embodiment of the present invention, an access point provided in any embodiment.

[0078] 第六方面,本发明实施例提供一种集中控制器,包括:发射机、接收机、存储器以及分别与所述发射机、所述接收机和所述存储器连接的处理器,其中,所述存储器中存储一组程序代码,且所述处理器用于调用所述存储器中存储的程序代码,执行本发明第一方面所提供的无线网络信道分配方法。 [0078] The sixth aspect, embodiments of the present invention provides a centralized controller, comprising: a transmitter, a receiver, a memory and a processor connected to the transmitter, the receiver and the memory, wherein, stored in the memory a set of program codes, and the processor is configured to call the program codes stored in the memory, perform a wireless network channel allocation method of the first aspect of the present invention is provided.

[0079] 第七方面,本发明实施例提供一种接入点,包括:发射机、接收机、存储器以及分别与所述发射机、所述接收机和所述存储器连接的处理器,其中,所述存储器中存储一组程序代码,且所述处理器用于调用所述存储器中存储的程序代码,执行本发明第二方面所提供的无线网络信道分配方法。 [0079] a seventh aspect, embodiments of the present invention provides an access point, comprising: a transmitter, a receiver, a memory and a processor connected to the transmitter, the receiver and the memory, wherein, stored in the memory a set of program codes, and the processor is configured to call the program codes stored in the memory, perform a wireless network channel allocation method of the second aspect of the present invention is provided.

[0080] 本发明实施例提供的无线网络信道分配方法、装置及系统,集中控制器在确定预设域内各AP的目标信道时,将各AP的负载信息加入到信道间干扰衡量中,解决了仅利用干扰信号强度确定的分配方案而导致单纯让两个干扰信号强度较大的AP异频,而与干扰信号强度较小的同频,但两个异频的AP中有一个或两个并不繁忙,而干扰信号强度较小同频的AP却工作量大,负载高,从而使整个无线网络系统内实际降低干扰的效果并不优的问题,实现了信道分配的更加合理化,尤其是提高了密集布放场景下的信道的优化分配。 [0080] Wi-Fi channel allocation method according to an embodiment of the present invention, apparatus and system for centralized controller in determining the target channel of each AP preset in the art, each AP load information to the inter-channel interference measure, a solution of allocation scheme using only the interference caused by the signal strength determiner simply let the two interfering signal strength of the AP larger inter-frequency, signal strength and interference with smaller frequency, but two different frequency in the AP and one or two not busy, but the smaller the strength of the interference signal with the frequency of the AP workload, high load, so that the entire wireless network system, the actual effect is not optimal for reducing interference problems, to achieve a more rationalized channel allocated channel, in particular to improve intensive optimized channel allocation in a deployment scenario.

附图说明 BRIEF DESCRIPTION

[0081] 为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。 [0081] In order to more clearly illustrate the technical solutions in the embodiments or the prior art embodiment of the present invention, the accompanying drawings for illustrating the prior art described or needed to be used in an embodiment will be briefly introduced hereinafter, the description below the figures show some embodiments of the present invention, those of ordinary skill in the art is concerned, without any creative effort, and can obtain other drawings based on these drawings.

[0082] 图1为本发明一实施例无线网络信道分配方法的流程图; [0082] FIG. 1 is a flowchart example of a radio channel assignment method according to an embodiment of the present invention;

[0083] 图2为本发明另一实施例无线网络信道分配方法的流程图; Flowchart of channel allocation method of a wireless network of [0083] FIG 2 a further embodiment of the present invention;

[0084] 图3为本发明再一实施例无线网络信道分配方法的流程图; [0084] FIG. 3 flowchart of channel allocation method of a wireless network to another embodiment of the present invention;

[0085] 图4为本发明又一实施例无线网络信道分配方法的流程图; [0085] FIG 4 is a flowchart example of a radio channel assignment method according to another embodiment of the present invention;

[0086] 图5为本发明又一实施例无线网络信道分配方法的信令流程图; [0086] FIG 5 is a signaling radio network channel allocation method according to another embodiment of the present invention, a flow chart;

[0087] 图6为本发明一实施例集中控制器的结构示意图; [0087] FIG 6 schematic structural diagram of a centralized controller in the present embodiment of the invention;

[0088] 图7为本发明一实施例接入点的结构示意图; [0088] FIG. 7 is a schematic configuration of an access point to an embodiment of the present invention;

[0089] 图8为本发明一实施例无线网络信道分配系统的结构示意图; [0089] Figure 8 schematic structural diagram of a wireless network system, a channel assignment embodiment of the present invention;

[0090] 图9为本发明另一实施例集中控制器的结构示意图; [0090] FIG. 9 is a schematic structural diagram of another embodiment of a centralized controller embodiment of the present invention;

[0091] 图10为本发明另一实施例接入点的结构示意图。 [0091] FIG. 10 is a schematic configuration of an access point according to another embodiment of the present invention.

具体实施方式 Detailed ways

[0092] 为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。 [0092] In order that the invention object, technical solutions, and advantages of the embodiments more clearly, the following the present invention in the accompanying drawings, technical solutions of embodiments of the present invention are clearly and completely described, obviously, the described the embodiment is an embodiment of the present invention is a part, but not all embodiments. 基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。 Based on the embodiments of the present invention, those of ordinary skill in the art to make all other embodiments without creative work obtained by, it falls within the scope of the present invention.

[0093] 图1为本发明一实施例无线网络信道分配方法的流程图,该方法适用于WLAN以及GSM网络等类似蜂窝结构的通信系统,对于WLAN,该方法主要适用于由瘦AP构架的组网模式。 [0093] FIG. 1 is a flowchart example of a radio channel assignment method according to an embodiment of the present invention, the method is applicable to a WLAN and GSM networks communication system similar to the honeycomb structure for the WLAN, the method is mainly applied to a thin AP architecture group network mode. 该方法可以由集中控制器来实现,其中该集中控制器可以为无线控制器(Access Controller,简称AC),也可以为服务器,或特定的AP,只要能够实现该集中控制功能即可。 The method may be implemented by a centralized controller, wherein the radio controller may be centralized controller (Access Controller, referred to as the AC), or may be a server, the AP or specific, as long as it can realize the centralized control function. 在以下实施例中,均以WLAN及AC作为集中控制器为例说明,如图1所示,该方法可以按照如下流程进行: In the following examples, as are the centralized controller AC and the WLAN as an example, shown in Figure 1, the method may proceed according to the following procedure:

[0094] S101、集中控制器接收预设域内的至少一个AP上报的受相邻AP干扰的信号干扰信息。 [0094] S101, the central controller receives a signal within a preset interference information by at least one adjacent interfering AP AP reported.

[0095] 具体地,AC对至少一个AP上报的受相邻AP干扰的信号干扰信息,可以通过探测相邻AP对自身产生干扰的方式来获取。 [0095] Specifically, the AC signal interference information by at least one neighboring AP interference reported by AP, AP can be acquired by detecting interference of an adjacent manner itself. 其中,该信号干扰信息用于反映相邻AP对该各AP 造成干扰的信号强度信息,可以为SIR,也可以为产生干扰的信号强度,但不以此为限。 Wherein the interference information signal to the signal strength information to the AP in each AP cause interference with adjacent reflecting, the SIR may be, as may be interfering signal strength, but not limited thereto. 其中,该预设域是由AC管辖的部分或全部AP组成,是AC在做整体使用信道调整时设置的AP 的集合,也可以称为调优组,即AC准备调整使用信道的AP集合,该预设域可以包括AC所管辖的全部AP,也可以包括AC管辖的部分AP,可根据实际调整情况而定,此处不做限制。 Wherein the predetermined region is a part or all of AP by an AC governed composition, is a collection of the AP AC arranged in making overall use of channel adjustment, may also be referred to as a tuning group, i.e., AC ready adjustment AP collection channel used, the default domain may include all AP AC jurisdiction may also include a portion AP AC jurisdiction, can be adjusted according to the actual situation, which is not limited herein.

[0096] S102、该集中控制器接收该至少一个AP上报的负载信息。 [0096] S102, the centralized controller receives the load information reported by the at least one AP.

[0097] 具体地,该AC接收预设域内的AP上报的负载信息,该负载信息可以是AP在一定触发条件下上报给AC的,如AP的负载信息发生变化时可以作为触发条件;该负载信息也可以为AC下达上报指示指令后,预设域内的AP上报的。 [0097] In particular, the art of receiving a preset AC load information reported by the AP, the load information may be reported to the AP AC under certain triggering conditions such as load AP information as a trigger condition may vary; the load after the report indicates that the instruction information can also be issued for the AC, AP reported preset domain.

[0098] 优选地,该步骤可以为该集中控制器分别接收该至少一个AP周期性上报的负载信息。 [0098] Preferably, the step may receive the load information periodically reported by the at least one AP for a centralized controller, respectively.

[0099] 其中,该负载信息可以为占空比、关联用户数、并发用户数和流量等信息的任意组合。 [0099] wherein the load information may be a duty cycle, any combination of the information associated with the number of users, number of concurrent users and flow.

[0100] S102和SlOl的时序并不固定,也可以先执行S102,之后再执行S101。 [0100] S102 and the timing is not fixed SlOl, S102 may be first performed, and then after performing S101.

[0101] S103、该集中控制器根据接收到的该至少一个AP中各AP上报的该信号干扰信息和该各AP的负载信息确定该各AP的综合干扰值。 [0101] S103, the centralized controller according to the received at least one AP in each AP reported by the signal interference information and the load information of each AP determines the integrated value of the interference of each AP.

[0102] 具体地,该集中控制器根据公式(1)计算该各AP的综合干扰值,其中Sij为该至少一个AP中第i个AP受到相邻的第j个AP干扰的综合干扰值,Iii为根据第i个AP上报的负载信息确定的负载值,Clij为该第i个AP受到该第j个AP干扰的信号干扰信息确定的信号干扰值。 [0102] In particular, the centralized controller (1) calculates an integrated value of the interference of each AP according to the formula, wherein the at least one AP Sij for the i-th AP interference by the integrated value of the j-th adjacent AP interference, value signal interference information signal interference Iii determined by the j-th interfering AP value according to the load of the i-th AP reported by the determined load information, Clij for the i-th AP.

[0103] Sij=IiiXdij (1) [0103] Sij = IiiXdij (1)

[0104] 具体地,对于I以占空比作为负载信息为例进行说明。 [0104] In particular, as the load information to Example I at a duty ratio will be described. 根据第i个AP上报的负载信息确定的负载值可以由公式(2)计算得出的,其中D x为该第i个AP的第X个时间段的占空比,Ax为第X个时间段的占空比的加权因子,且满足 Can (2) is calculated based on the load value of the i th AP reported load information determined by the formula obtained, wherein D x duty ratio for the i-th X-th period AP, the Ax of X for the first time duty cycle segment weighting factor, and satisfying

Figure CN104349480AD00141

1为选取时间段的总个数。 1 is the total number of the selected time period.

Figure CN104349480AD00142

[0106] 例如,AP在每1小时中,以10分钟为采样频率,以1分钟为采样时长,采样占空比并将其求平均;记录AP -个周期(24小时)内,每个小时的平均占空比;将一个周期(24小时)内,每个小时域内各个AP的占空比求和,找出一个周期内最忙的4个小时;求各AP在这4个小时内的平均占空比;则AP的平均占空比=最繁忙的4个小时的占空比数之和/4 ;由于调优当天的占空比不可能在当天调优的时候获取到,故基于占空比的数据相关性,利用历史的占空比数据,来预测当天的占空比。 [0106] eg, AP at every one hour, the sampling frequency to 10 minutes, in one minute long sampling, averaging and sampling duty cycle; recording AP - cycles (24 hours), every hour the average duty cycle; the one cycle (24 hours), the duty cycle for each hour of each AP domain summation to find a busiest period of 4 hours; seek each AP within four hours the average duty cycle; the average duty cycle of AP = 4 busiest hour and the duty ratio of the number of / 4; as tuning the duty cycle of the day in the day is not possible to obtain the tuning time, it is based on duty cycle data correlation, using the duty cycle of history data to predict the duty cycle of the day. 可以取前两天的数据作为公式(2冲的D x,即D1 为昨天AP的平均占空比,D2为前天AP的平均占空比,可以5,则Iii=O. 5DJ0. 5D2。 Two days before the data can be taken as the equation (2 red D x, i.e., the average duty cycle D1 is the last AP, D2 is the day before the average duty cycle of the AP, can be 5, the Iii = O. 5DJ0. 5D2.

[0107] 上述对Iii的计算是通过时间序列预测方法得出的,但不以此为限,还可以通过曲线拟合预测、神经网络预测、灰色预测法等方法来得出h。 [0107] The calculation is derived through Iii time series forecasting method, but not limited to, can be derived by curve fitting methods h prediction neural network prediction, gray prediction method and the like.

[0108] 对于Clij,以干扰的信号强度作为信号干扰信息为例进行说明。 [0108] For Clij, the signal intensity of the interference signal interference information as an example. 该第i个AP受到第j个AP干扰的信号强度和公式(3)计算信号干扰值Cl ij The i-th AP AP by the j-th interfering signal strength and Equation (3) calculates a signal to interference value Cl ij

[0109] [0109]

Figure CN104349480AD00143

[0110] 其中,B为该第i个AP受到该第j个AP干扰的信号强度,Bi、By、B y+1和Bm分别为预设的由小到大的第1个、第y个、第y+1个和第m个信号强度门限值,m为设置的信号强度门限值的个数。 [0110] wherein, B for the i-th AP AP by the j-th interfering signal strength, Bi, By, B y + 1 and Bm respectively preset first ascending 1, y-th the first y + 1 th and m-th signal strength threshold, the signal strength of the door m is the number of the set value.

[0111] 例如,设置一个信号强度门限值=B1=-SgdB,此时公式(3)变为公式(4) [0111] For example, setting a signal strength threshold = B1 = -SgdB, at this time the equation (3) becomes equation (4)

[0112] [0112]

Figure CN104349480AD00144

[0113] 即当该第i个AP受到该第j个AP干扰的信号强度B大于等于空闲信道评估(Clear Channel Assessment,简称CCA)门限_89dB 时,(Iij 取1,否则取0。 [0113] That is, when the i-th AP AP by the j-th interfering signal strength of not less than B Clear Channel Assessment (Clear Channel Assessment, abbreviated CCA) threshold when _89dB, (Iij take 1, and 0 otherwise.

[0114] 又例如,设置三个信号强度门限=B1=-^dB, B2=-70dB、B3=-50dB和B4=-30dB,此时公式(3)变为公式(5)。 [0114] As another example, three signal strength threshold = B1 = - ^ dB, B2 = -70dB, B3 = -50dB and B4 = -30dB, at this time the equation (3) becomes equation (5).

[0115] [0115]

Figure CN104349480AD00151

[0116] 其中,该第i个AP与该第j个AP属于同一网络区域内的AP,可以为同一网络运营商布放的AP,也可以为不同运营商布放的AP,还可以是家用AP。 [0116] wherein, the i-th AP and the j-th AP belonging to the AP in the same network area, can operators laying on the same network AP, may be put to different operators cloth AP, it may also be a home AP. 其中,同一网络区域所形成的地理覆盖面积可以根据实际情况而定,此处不做限制。 Wherein the geographical coverage area of ​​the same network may be formed according to the actual situation, which is not limited herein.

[0117] S104、该集中控制器根据该至少一个AP的综合干扰值确定该各AP的目标信道,并分别将该各AP的目标信道的指示信息发送给该各AP。 [0117] S104, the controller determines that the concentration of the target channel of each AP based on the at least one interfering integrated value AP and the target channel information indicative of each of each AP transmits to the AP, respectively.

[0118] 具体地,AC可以根据预设域内各AP的综合干扰值形成一干扰矩阵,再将干扰矩阵与初始选取的信道分配矩阵相结合得到初始总干扰值,以该初始干扰值作为参考,随机选取信道分配矩阵,与干扰矩阵相结合得到新的总干扰值,利用各种求最优解的迭代算法,找到比该初始总干扰值更小的值作为优化的总干扰值,该优化的总干扰值对应的信道分配矩阵即可作为优化的信道分配方案。 [0118] Specifically, the AC may be formed in accordance with an integrated value of each AP interference within a preset matrix interference, interference matrix and then select the initial channel assignment matrix combination to obtain an initial total interference value to the initial value as the reference disturbance, randomly selected channel allocation matrix, combined with the interference matrix to obtain the new total interference value, using various iterative algorithm for finding the optimal solution, to find a smaller value than the initial value of total interference as a total interference value optimization, the optimized the total value of the interference matrix corresponding to the channel allocation as channel allocation scheme optimized. 其中,该求最优解的算法可以为遗传算法、蚁群算法等各类算法,此处不做任何限制。 Among them, the Method of Calculating the optimal solution for all types of possible genetic algorithm, ant colony algorithm, here without any restrictions. 之后,AC将确定的优化的信道分配方案中的各AP的目标信道发送给各AP,以指示该各AP据此进行信道调整。 After, AC channels for each of the target AP optimized channel allocation scheme determined in the transmission to each AP, each AP to indicate that the channel is adjusted accordingly.

[0119] 优选地,本实施例以模拟退火算法作为求最优解的迭代算法,此时S104中确定信道分配方案可以按照如下流程进行: [0119] Preferably, in the present embodiment, the simulated annealing algorithm as the optimal solution of the iterative algorithm, then step S104 determines channel allocation scheme may be performed according to the following procedure:

[0120] 该集中控制器将第i个AP受到第j个AP干扰的综合干扰值Sij组成干扰矩阵,并将该干扰矩阵与初始选取的信道分配矩阵相结合得到初始总干扰值; Integrated interference [0120] The centralized controller will be the i-th AP AP j-th interference value Sij interference matrix composition, and the interference matrix and an initial allocation matrix selected channel combination to obtain an initial total interference value;

[0121] 该集中控制器利用模拟退火算法将该初始总干扰值作为模拟退火算法的初始内能,随机选取信道分配矩阵与该干扰矩阵作为该模拟退火算法的新内能,经过预设迭代最终确定该信道分配方案。 [0121] The centralized controller using the simulated annealing algorithm as the initial value of the initial total interference simulated annealing algorithm can randomly select a new channel assignment matrix within the simulated annealing algorithm can be used as the interference matrix, for a preset final iteration determining that the channel allocation scheme.

[0122] 例如,假设初始选取的信道分配矩阵为 [0122] For example, assume that the initial selection of channel assignment matrix

Figure CN104349480AD00152

,行依次代表API、AP2和AP3 (此处APl〜AP3均为预设域内的AP),列依次代表信道1、信道6和信道11,其中,矩阵中"1"代表对应信道被使用,例如,E33=I表示AP3在使用信道11 ;假设干扰矩阵 , The representative line sequentially API, AP2, and AP3 of (here APl~AP3 AP are default domain), representing the channel sequentially column 1, channel 6 and channel 11, wherein the matrix of "1" representing that the corresponding channel is used, e.g. , E33 = I represents AP3 channel 11 in use; assumed interference matrix

Figure CN104349480AD00153

•此时,从信道分配矩阵E中可以看出,第一列出现了两个"1",即代表APl和AP2均使用信道1,此时APl与AP2相互间有干扰,则此时初始总干扰值W=S12+S21,即W=3+3=6。 • In this case, it can be seen from the channel assignment matrix E, the first column there were two "1", which represents APl and AP2 channel 1 are used, then there is interference between the AP2 and each APl, at this time, the initial total disturbance value W = S12 + S21, i.e., W = 3 + 3 = 6. 又例如,假设初始选取的信道分配矩阵为 As another example, assume that the initial selection of channel assignment matrix

Figure CN104349480AD00161

,则从信道分配矩阵E可以看出,API、AP2和AP3均使用信道1,则API、AP2和AP3之间均有干扰,则初始总干扰值W=S12+S21+S 13+S31+S23+S32,即W=3+3+4+4+5+5=24。 , From the channel assignment it can be seen that the matrix E, API, AP2, and AP3 are use channel 1, the interference between both the API, AP2, and AP3, the initial total interference value W = S12 + S21 + S 13 + S31 + S23 + S32, i.e., W = 3 + 3 + 4 + 4 + 5 + 5 = 24. 其中,干扰矩阵的对角线元素,如Sn、S22、S33,代表第i个AP对自身的干扰,因此对角线元素为0。 Wherein the interference matrix of diagonal elements, such as Sn, S22, S33, the i-th AP representative of the interference of its own, so the diagonal elements to zero. 此处,对信道分配矩阵与干扰矩阵相结合形成总干扰值的方式仅为举例说明,相结合的方式并不限于此,采用不同的计算规则,相结合的方式有所不同, 此处不做任何限制。 Here, the channel assignment matrix of interference matrix and combine to form the total interference value way of illustration only, the combination is not limited thereto, different calculation rules, a combination of different, here not any restrictions.

[0123] 对于模拟退火算法,根据Metropolis准则,粒子在温度T时趋于平衡的概率为exp (- Λ EAkT)),其中E为温度T时的内能,Λ E为其改变量,k为波尔兹曼常数。 [0123] For probabilistic simulated annealing algorithm, according to the Metropolis criterion, the particles tend to equilibrium at the temperature T is exp (- Λ EAkT)), where E is the energy at a temperature T, for the amount of change Lambda E, k is Boltzmann's constant. 可将内能E模拟为目标函数值,温度T转化为控制参数t,即得到解组合优化问题的模拟退火算法: 由初始解和控制参数初值开始,对当前解重复/产生新解y计算目标函数差y接受或舍弃〇的迭代,并逐步衰减t值,模拟退火过程。 The energy E can be modeled as a function of the target value, the control parameter is converted to a temperature T t, i.e. simulated annealing algorithm to obtain Solution combination optimization problem: starting from the initial solution and the initial value of the control parameter, the current deduplication / y calculated to generate new solutions the objective function to accept or discard square difference y iteration and gradually attenuate the value of t, simulated annealing process. 算法终止时的当前解即为所得近似最优解。 The current solution is the optimal solution when a resulting approximate algorithm terminates. 在实际问题中应用模拟退火算法的一个重要问题是如何从当前解产生新解,即邻域的选取。 An important issue in the simulated annealing algorithm practical problem is how to generate the new solutions from the current solution, i.e. selected neighborhood. 在信道分配问题中,可以为所有AP选择同一个信道作为初始解,解的邻域则为以AP的当前信道为中心的相邻1个信道(首尾循环)内的所有信道,新解在当前解的邻域随机选择产生。 In the channel assignment problem, it can be selected for all the AP the same channel as the initial solution, the neighborhood solutions, compared to the current channel of the AP centered adjacent an all channels within a channel (end-around), the new solution in this Solutions neighborhood generated randomly selected.

[0124] 举例来说,在得到初始总干扰值W后,将初始总干扰值W作为模拟退火算法中的初始内能,并随机取一信道分配矩阵与该干扰矩阵相结合得出一个新的总干扰值作为模拟退火算法中的进行迭代的起始解,并设置温度衰减函数a=0. 99,初始温度、=97,结束温度tf=3,马尔科夫链长度Markov_length=100000。 [0124] For example, after obtaining the initial total interference value W, the initial value W is the total interference as the initial simulated annealing algorithm can, and a randomly selected channel assignment matrix of the interference matrix combined with a new draw total interference value as a starting solution annealing algorithm iterates simulation, and set the temperature decay function a = 0. 99, initial temperature = 97, end temperature tf = 3, Markov chain length Markov_length = 100000. 参数设置好后,参考初始干扰值W,进行模拟退火算法得出小于W的总干扰值,将该小于W的总干扰值对应的信道分配矩阵作为更优的信道分配方案。 After the parameters are set, the initial interference reference value W, simulated annealing algorithm derived value of W is less than the total interference, the value of W is less than the total interference channel allocation matrix corresponding to a more optimal channel allocation scheme.

[0125] 优选地,将上一次确定的信道分配方案对应的信道分配矩阵确定为本次该初始选取的信道分配矩阵。 [0125] Preferably, the last determined channel allocation scheme corresponding to the channel assignment matrix to determine the present times of the selected original channel allocation matrix. 即AC在本次要确定信道分配方案时,将上一次的信道分配方案对应的分配矩阵作为本次初始选取的信道分配方案,以此作为参考来最终找出一个更优的信道分配方案。 I.e. AC determined channel allocation scheme in this secondary will be the last channel allocation scheme corresponding allocation matrix as the channel allocation scheme of this initial selected, as a reference to eventually find a more optimal channel allocation scheme.

[0126] 本实施例,集中控制器在确定预设域内各AP的目标信道时,将各AP的负载信息加入到信道间干扰衡量中,解决了仅利用干扰信号强度确定的分配方案而导致单纯让两个干扰信号强度较大的AP异频,而与干扰信号强度较小的同频,但两个异频的AP中有一个或两个并不繁忙,而干扰信号强度较小同频的AP却工作量大,负载高,从而使整个无线网络系统内实际降低干扰的效果并不优的问题,实现了信道分配的更加合理化,尤其是提高了密集布放场景下的信道的优化分配。 [0126] the present embodiment, a centralized controller in determining the target channel of each AP preset in the art, each AP load information to the inter-channel interference measure, the solved only by the allocation interference signal intensity determination result simplex let two interfering AP signal strength greater inter-frequency, less interference with the signal intensity of the same frequency, but in two different frequencies with one or two AP is not busy, and the strength of the interference signal of the same frequency is small AP was workload, high load, so that the entire wireless network system is actually reduce the interference effect is not superior problems, to achieve a more rationalized channel allocated channel, in particular to improve the dense deployment optimal allocation of channels in a scene.

[0127] 图2为本发明另一实施例无线网络信道分配方法的流程图,本实施例在上述实施例的基础上,在SlOl之前还可以包括:该集中控制器在达到预设触发条件时,向预设域内的至少一个AP依次发送邻居探测指示信息,以指示该至少一个AP中各AP通过变换信道探测相邻AP对该各AP产生干扰的信号强度;SlOl可以包括:该集中控制器接收该至少一个AP返回的邻居探测结果,该邻居探测结果包括该至少一个AP中各AP探测到的相邻AP对该各AP产生干扰的信号强度。 When the centralized controller reaches a preset trigger conditions: flow chart illustrating a wireless channel assignment method [0127] FIG 2 a further embodiment of the present invention, the present embodiment based on the above-described embodiment, may further comprise before SlOl , at least one AP sequentially sends a predetermined detection region neighbor indication information to indicate that the at least one AP in each AP signal strength for each neighboring AP to the AP interference is detected by changing channels; the SLOL may include: the centralized controller receiving a neighbor detection result returned by the at least one AP, the neighbor detection result includes the at least one AP in each AP detected neighbor AP of the interfering signal strength of each AP. 如图2所示,该方法可以按照如下流程进行: 2, the process can be carried out according to the following procedure:

[0128] S201、该集中控制器在达到预设触发条件时,向预设域内的至少一个AP依次发送邻居探测指示信息,以指示该至少一个AP中各AP通过变换信道探测相邻AP对该各AP产生干扰的信号强度。 [0128] S201, the focus controller reaches a preset trigger conditions, to at least one AP transmitted sequentially within a predetermined neighbor sounding instruction information to indicate that the at least one AP in each AP converted by the neighboring AP channel sounding each AP interfering signal strength.

[0129] 具体地,AC在达到信道调优的触发条件后,向该AC控制的WLAN预设域内的所有AP依次下发邻居探测指示信息,以指示预设域内的所有AP依次通过变化使用信道来探测相邻AP对自身产生干扰的信号强度。 [0129] Specifically, after the trigger condition is fulfilled AC channel tuning, all the WLAN AP to the AC control within a predetermined detection successively lower neighbor indication information is sent to indicate a predetermined domain by sequentially changes in all the AP using the channel AP signal strength of the interfering adjacent to detect their own.

[0130] 其中,该相邻AP是该至少一个AP向其发送探测请求后,能够接收到其返回的探测响应的AP。 [0130] wherein, after the AP is a neighboring AP to which the at least one probe request, the AP can be received probe response is returned. 该预设触发条件可以为设置的固定时间间隔,也可以为手动输入的触发命令,还可以为WLAN预设域内AP的个数发生变化,但不以此为限。 The trigger condition may be a preset fixed time interval set as the trigger command may be entered manually, you may also be a WLAN AP within a predetermined number of changes, but not limited thereto.

[0131] S202、该集中控制器接收该至少一个AP返回的邻居探测结果,该邻居探测结果包括该至少一个AP中各AP探测到的相邻AP对该各AP产生干扰的信号强度。 [0131] S202, the centralized controller receives the at least one neighbor AP detection result returned by the neighbor detection result includes the at least one AP in each AP detected neighbor AP of the interfering signal strength of each AP.

[0132] S102、该集中控制器接收该至少一个AP上报的负载信息。 [0132] S102, the centralized controller receives the load information reported by the at least one AP.

[0133] S103、该集中控制器根据接收到的该至少一个AP中各AP上报的该信号干扰信息和该各AP的负载信息确定该各AP的综合干扰值。 [0133] S103, the centralized controller according to the received at least one AP in each AP reported by the signal interference information and the load information of each AP determines the integrated value of the interference of each AP.

[0134] S104、该集中控制器根据该至少一个AP的综合干扰值确定该各AP的目标信道,并分别将该各AP的目标信道的指示信息发送给该各AP。 [0134] S104, the controller determines that the concentration of the target channel of each AP based on the at least one interfering integrated value AP and the target channel information indicative of each of each AP transmits to the AP, respectively.

[0135] 图3为本发明再一实施例无线网络信道分配方法的流程图,随着无线网路的发展,在某一网络区域内会出现越来越多的AP,有些AP是AC所管辖预设域内的AP,有些AP 是用户自有的AP,如个人家庭中的wif i热点等,有些AP是其他运营商布放的AP,还有一些AP是同一运营商布放的但不在同一预设域内的AP,通常将这些异于同一预设域内的AP统称为野AP。 [0135] FIG. 3 flowchart of channel allocation method of a wireless network to another embodiment of the present invention, with the development of wireless networks, there will be more and more in a given network area AP, AP is governed by some AC default domain AP, AP is some user's own AP, as wif i hotspots and other personal family, some other operators AP is laying the AP, AP and some are laying the same operator but not in the same default domain AP, AP is usually different from those of the same preset domain referred to as wild AP. 为了更加合理的实现信道优化分配,将野AP的综合干扰情况也一起加入到信道间干扰衡量中。 In order to achieve a more rational distribution channel optimization, the integrated AP wild interference situation also added together to the measured inter-channel interference.

[0136] 本实施例在图2所示实施例的基础上,该邻居探测指示信息还用于指示该各AP通过变换信道探测相邻AP的基本服务集标识(Basic Service Set Identifier,简称BSSID) 和服务集标识(Service Set Identifier,简称SSID),则该邻居探测结果还包括该各AP探测到的相邻AP的BSSID和SSID ;相应地,S103可以包括:该集中控制器根据接收到该至少一个AP中的第i个AP上报的相邻的第j个AP的BSSID确定该第j个AP是否为预设域内的AP ;若是,则该集中控制器根据公式Sij=Iii X Clij计算该i个AP的综合干扰值,其中Sij为该第i个AP受到该第j个AP干扰的综合干扰值,Ic i为根据该第i个AP上报的负载信息确定的负载值,Clij为该第i个AP受到该第j个AP干扰的信号干扰信息确定的信号干扰值; 若否,则该集中控制器根据公式S ij=IiiXdijXhj计算该i个AP的综合干扰值,其中S ij为该第i个AP受到该第j个AP干扰的综合干扰 [0136] In the present embodiment based on the embodiment shown in Figure 2, the neighbor detecting the indication information for indicating further by converting the respective channel sounding AP neighbor AP in a basic service set identifier (Basic Service Set Identifier, referred BSSID) and a service set identifier (service set identifier, SSID for short), the detection result further comprises a neighbor AP of the respective detected neighboring AP BSSID and SSID; accordingly, S103 may comprise: the centralized controller according to the received at least a i-th AP, AP reported by the j-th adjacent BSSID of the AP determining whether or not the j-th preset AP AP domain; if yes, the centralized controller according to the formula Sij = Iii X Clij calculated i an integrated value of the interference of the AP, wherein the interference value Sij integrated by the j-th interfering AP for the i-th AP, Ic i value according to the load of the i-th AP reported by the determined load information, Clij for the i signal interference information signal interference value determined by the AP of a j-th interfering AP; if not, the central controller according to the formula S ij = IiiXdijXhj calculated integrated value of the i-th interfering AP, where S ij for the i AP integrated interference by one of the j-th interfering AP ,Ici为根据该第i个AP上报的负载信息确定的负载值,du为该第i个AP受到该第j个AP干扰的信号干扰信息确定的信号干扰值,I lj 为比例因子,该Iij的大小是由该集中控制器根据该j个AP的SSID确定的。 , Ici load value according to the i-th AP reported by the determined load information, for the i-th AP du signal interference by the value of the j-th interfering signal interference information determined AP, I lj is the scale factor, the Iij the size is determined by the centralized controller according to the j-th AP's SSID. 如图3所示, 该方法可以按照如下流程进行: As shown in FIG. 3, the method may proceed according to the following procedure:

[0137] S301、该集中控制器在达到预设触发条件时,向预设域内的至少一个AP依次发送邻居探测指示信息,以指示该至少一个AP中各AP通过变换信道探测相邻AP对该各AP产生干扰的信号强度及相邻AP的BSSID和SSID。 [0137] S301, the focus controller reaches a preset trigger conditions, to at least one AP transmitted sequentially within a predetermined neighbor sounding instruction information to indicate that the at least one AP in each AP converted by the neighboring AP channel sounding each AP signal strength and interference of neighboring AP BSSID and SSID.

[0138] S302、该集中控制器接收该至少一个AP返回的邻居探测结果,该邻居探测结果包括该至少一个AP中各AP探测到的相邻AP对该各AP产生干扰的信号强度及相邻AP的BSSID 和SSID。 [0138] S302, the centralized controller receives the at least one neighbor AP detection result returned by the neighbor detection result includes the at least one AP in each AP neighbor AP detected interfering signal strength of the AP and the respective adjacent AP's BSSID and SSID.

[0139] S102、该集中控制器接收该至少一个AP上报的负载信息。 [0139] S102, the centralized controller receives the load information reported by the at least one AP.

[0140] S303、该集中控制器根据接收到该至少一个AP中第i个AP上报的相邻的第j个AP 的BSSID,确定该第j个AP是否为该预设域内的AP ;若是,则执行S304 ;如否,则执行S305。 [0140] S303, the central controller according to the j-th AP BSSID of the AP receiving the at least one i-th neighboring AP reported, determining whether or not the j-th AP AP for a preset areas; if, S304, is performed; if not, then performing S305.

[0141] 其中,AC可以根据预设域内AP上报的相邻AP的BSSID确定该相邻AP是否为预设域内AP。 [0141] wherein, AC may be determined whether the AP is a neighboring AP in the art in accordance with the preset BSSID preset region neighboring AP AP reported. 优选地,在判断该相邻AP是否为预设域内AP时,可以根据BSSID和SSID结合分析,这样做的好处在于,由于对BSSID解析时需要对地址池信息进行匹配,而通过BSSID和SSID相结合进行判断时无需匹配地址池信息,提高了解析效率。 Preferably, it is determined whether the AP is a neighboring AP preset in the art, may be combined according to analysis BSSID and SSID, the benefits of this is that, due to the need to address pool information matches BSSID when parsing through the BSSID and SSID phase It needs to match the address pool information in conjunction with the determination to improve the efficiency of analysis.

[0142] S304、该集中控制器根据公式Sij=IiiXdij计算该第i个AP的综合干扰值,其中S ij 为该第i个AP受到该第j个AP干扰的综合干扰值,Ici为根据该第i个AP上报的负载信息确定的负载值,Cl ij为该第i个AP受到该第j个AP干扰的信号干扰信息确定的信号干扰值。 [0142] S304, the central controller is calculated according to the formula Sij = IiiXdij integrated value of the interference of the i-th AP, where S ij for the i-th value of the integrated disturbance by the j-th AP AP interference, according to the Ici the i-th AP load information reported by the determined load value, Cl ij for the i-th AP information determined by the value of the interference signal the interference signal of the interference of the j-th AP.

[0143] 其中,AC对第i个AP受到第j个AP干扰的综合干扰值Sij与上述方式一致,此处不再赘述。 [0143] wherein the integrated AC interference by the interference of the j-th AP i-th AP Sij values ​​consistent with the above-described embodiment, not further described herein.

[0144] S305、该集中控制器根据公式Sij=Iii X ClijXhj计算该第i个AP的综合干扰值,其中Sij为该第i个AP受到该第j个AP干扰的综合干扰值,Ici为根据该第i个AP上报的负载信息确定的负载值,Cl ij为该第i个AP受到该第j个AP干扰的信号干扰信息确定的信号干扰值,h为比例因子,该Ilj的大小是由该集中控制器根据该第j个AP的SSID确定的。 [0144] S305, the central controller calculates the integrated value of the i-th interfering AP according to the formula Sij = Iii X ClijXhj, wherein Sij for the integrated value of the i-th AP interference by the interference of the j-th AP, Ici according the i-th AP load information reported by the determined load value, Cl ij for the i-th AP interference signal by the interference of the signal value of the j-th interfering AP information determined, h is the scale factor, it is determined by the size of the Ilj the centralized controller determines based on the j-th SSID to the AP.

[0145] 具体地,若否,预设域内的AP可以获取该第j个AP对其产生干扰的信号干扰信息,但由于该第j个AP为野AP,则AC将无法衡量其负载情况,此时可以根据预设域内AP上报的SSID来确定该j个AP是运营商布放的AP还是用户家用AP,若为运营商布放的AP,其负载情况相对较大,则h可以预设一个较大的值,如0. 8 ;若是用户家用AP,其负载情况很小,则hj可以预设一个较小的值,如0. 2。 [0145] In particular, if not, the default AP domain can obtain the AP its j-th interfering signal interference information, but because of the j-th AP AP field, it is impossible to measure the AC load, At this time, the domain may be determined according to a preset SSID of the AP reported by the j-th AP is an AP laying operator or user home AP, if operators put cloth AP, which load is relatively large, it may be preset h a large value, such as 0.8; if the user home the AP, which load is small, hj can preset a smaller value, such as 0.2. 通过这种方式,可以进一步细化各AP的综合干扰值Sij,使后续形成的干扰矩阵更加准确。 In this way, interference can further refine the integrated value Sij of each AP, so that interference matrix subsequently formed more accurately. 同时,由于第j个AP为野AP,如果该野AP不为AC 管辖的AP,则AC无法知道该第j个AP的相关情况,则Sji=CL其他参数及公式算法与上述类似,此处不再赘述。 At the same time, due to the j-th AP AP wild, wild AP if the AP is not under the jurisdiction of the AC, the AC can not know the relevant circumstances of the j-th AP, the Sji = CL other parameters and algorithm similar to the above formula, here No longer.

[0146] S104、该集中控制器根据该至少一个AP的综合干扰值确定该各AP的目标信道,并分别将该各AP的目标信道的指示信息发送给该各AP。 [0146] S104, the controller determines that the concentration of the target channel of each AP based on the at least one interfering integrated value AP and the target channel information indicative of each of each AP transmits to the AP, respectively.

[0147] 本实施例,通过在预设域内各AP上报的信号干扰信息中增加BSSID和SSID,进一步精确了综合干扰值的确定,提高了干扰矩阵的准确度,从而使信道分配方案的确定更加合理。 [0147] the present embodiment, the signal interference information in the AP in a preset region reported increased BSSID, and the SSID, further precise determination of the integrated disturbance value, improves the accuracy of the interference matrix, thereby determining a channel allocation scheme is more reasonable.

[0148] 图4为本发明又一实施例无线网络信道分配方法的流程图,该方法可以由AP来执行,如图4所示,该方法可以按照如下流程进行: [0148] FIG 4 is a flowchart example of a radio channel assignment method according to another embodiment of the present invention, the method may be performed by the AP, shown in Figure 4, the method may proceed according to the following procedure:

[0149] S401、AP向集中控制器上报该AP受相邻AP干扰的信号干扰信息。 [0149] S401, AP signal interference information reported by the AP to the neighbor AP interference centralized controller.

[0150] 具体地,该信号干扰信息可以包括该AP受相邻AP干扰的信号强度,可以是AP周期性或事件触发性的主动上报给AC的,也可以是接收AC的指示信息后上报的。 [0150] Specifically, the interference signal information may include signal strength of the neighbor AP by the AP interference may be periodic or event triggered AP active reported to AC, and may be, after receiving the indication information reported by AC .

[0151] 优选地,该步骤可以按照如下流程进行: [0151] Preferably, this step can be carried out according to the following procedure:

[0152] 该AP根据接收到的该集中控制器发送的邻居探测指示信息,向相邻AP发起邻居探测,该邻居探测包括探测该相邻AP对该AP产生干扰的信号强度; [0152] The AP indicates probe according to the received neighbor information sent by the centralized controller, initiates neighbor to neighbor AP detection, the neighbor detecting comprises detecting the signal strength of the AP to the AP interfering adjacent;

[0153] 该AP将该邻居探测的结果发送给该集中控制器,该邻居探测的结果包括该AP探测到的相邻AP对该AP产生干扰的信号强度。 [0153] The neighbor AP sends the result of detection to the centralized controller, neighbor detection result of the signal strength of the AP comprises detecting interference to neighbor AP of the AP generated.

[0154] 进一步,该邻居探测还可以包括探测该相邻AP的BSSID和SSID,则该邻居探测的结果还可以包括该AP探测到的该相邻AP的BSSID和SSID。 [0154] Further, the probe may also include a neighbor of the neighbor detecting the SSID and the BSSID of the AP, the detection result of the neighbor AP may further comprise the detection of the neighboring AP BSSID and SSID.

[0155] S402、该AP向该集中控制器上报该AP的负载信息。 [0155] S402, the AP reports the load information to the central controller of the AP.

[0156] 具体地,该负载信息可以是该AP在接收到AC的指示信息后上报的,也可以是该AP 主动上报的。 [0156] Specifically, the load information may be the AP after receiving the indication information reported by AC, it may be reported by the AP active.

[0157] 优选地,该步骤可以包括:该AP周期性的向该集中控制器上报该AP的负载信息。 [0157] Preferably, the step may include: the AP periodically reports the load information to the central controller of the AP.

[0158] 优选地,该AP的负载信息可以由下述信息中的至少一种信息确定:占空比、关联用户数、并发用户数和流量。 [0158] Preferably, the AP may determine load information from at least one information of the following information: the duty cycle, the associated number of users, number of concurrent users and traffic.

[0159] S403、该AP接收该集中控制器发送的目标信道的指示信息,并判断当前使用的信道与该指示信息指示的目标信道是否一致,若否,则将该目标信道作为新的使用信道,该目标信道是该集中控制器根据各AP上报的信号干扰信息和负载信息确定的。 [0159] S403, the AP receives information indicating the target channel in the set sent by the controller, and determines whether the channel coincides with the target channel the indication information indicating the currently used, and if not, the target channel as a new channel is used the target channel is determined according to the centralized controller AP reported by the respective signal to interference information, and loading information.

[0160] 具体地,该AP在接收到AC发送的指示信息后,首先判断当前所使用的信道与AC 发送的指示信息中指示的目标信道是否一致,若一致,继续使用当前信道,若不一致,表明当前所使用的信道并非WLAN整体相对优化的信道,则AP切换至该指示信息所指示的目标信道,从而使当前整个WLAN处于干扰相对优化的状态。 After [0160] Specifically, the AP receiving the indication information sent by the AC, first determines whether the target channel information indicating the channel currently used by the AC transmission indicated in the same, if they are consistent, continue using the current channel, if not, indicates that the channel is not currently used by optimizing the entire opposing WLAN channel, the AP switches to the target channel indicated by the indication information, so that the entire current WLAN is optimized relative to the state of the interference.

[0161] 本实施例,AP通过向集中控制器发送信号干扰信息和负载信息,以供集中控制器根据这些信息更加合理的确定各AP的目标信道,并根据集中控制器下发的目标信道指示信息切换使用信道,从而实现降低无线网络的整体干扰。 [0161] Examples of the present embodiment, by transmitting the AP signal interference information and load information to the centralized controller, for a more reasonable centralized controller determines the target channel based on the information of each AP, and channel indication sent by the centralized controller in accordance with the target the use channel information, thereby realizing reduce the overall interference in the wireless network.

[0162] 图5为本发明又一实施例无线网络信道分配方法的信令流程图,本实施例以WLAN 由预设域内的AP1、AP2和AP3,以及AC组成为例说明,如图5所示,该方法可以按照如下流程进行: [0162] Figure 5 a signaling flowchart of a further embodiment of a wireless channel assignment method of embodiment 5 of the present invention. In this embodiment, WLAN AP1 by a predetermined domain, AP2, and AP3 of, and an example AC composition as shown, the method may proceed according to the following procedure:

[0163] S501、AP1、AP2、AP3向AC周期性上报各自的负载信息。 [0163] S501, AP1, AP2, AP3 to periodically report their own load information to the AC.

[0164] S502、AC确定达到调整信道分配方案的触发条件。 [0164] S502, AC reaches the trigger condition is determined to adjust a channel allocation scheme.

[0165] S503、AC向API、AP2和AP3依次发送邻居探测指示信息。 [0165] S503, AC probe neighbor indication information transmitted to the API, AP2, and AP3 sequentially.

[0166] S504、AP1、AP2、AP3依次进行邻居探测。 [0166] S504, AP1, AP2, AP3 in turn neighbor detection.

[0167] 具体地,该邻居探测可以包括探测相邻AP对其产生干扰的信号强度,还可以包括探测相邻AP的BSSID和SSID。 [0167] In particular, the neighbor detection may include detecting the signal strength of its neighboring AP interfere, may further comprise detecting neighboring AP BSSID and SSID.

[0168] S505、AP1、AP2、AP3向AC上报邻居探测结果。 [0168] S505, AP1, AP2, AP3 neighbor reported the detection result to the AC.

[0169] S506、AC根据API、AP2、AP3上报的邻居探测结果及各自的负载信息确定干扰矩阵,结合最优解算法确定各AP的目标信道。 [0169] S506, AC interference matrix is ​​determined according to API, AP2, AP3 detection results reported by neighbors and their respective load information, in conjunction with the algorithm determines the optimal solution for each target channel AP.

[0170] 其中,AC根据API、AP2、AP3上报的邻居探测结果及各自的负载信息先确定API、 AP2、AP3的综合干扰值,由这些综合干扰值确定干扰矩阵,再利用如模拟退火算法等最优解迭代算法最终确定最优的信道分配方案,具体过程与前述方式类似,此处不再赘述。 [0170] wherein, the AC in accordance with API, AP2, neighbor detection result AP3 reported and their respective load information to determine an integrated interference value API, AP2, AP3, and these integrated interference value determined interference matrix, and then using such as simulated annealing algorithm optimum iterative algorithm to determine the optimal final channel allocation scheme, the process is similar to the specific embodiment, not further described herein.

[0171] S507、AC向AP1、AP2和AP3发送目标信道的指示信息。 [0171] S507, AC to AP1, AP2 and AP3 transmits information indicating the target channel.

[0172] S508、AP1、AP2、AP3根据该指示信息指示的目标信道调整当前使用信道。 [0172] S508, AP1, AP2, AP3 channel used to adjust the current according to the target channel indicated by the indication information.

[0173] 具体地,若当前使用信道与信道分配方案中指示的信道一致,则保持当前使用信道,若不一致,则切换至信道分配方案中指示的信道。 [0173] Specifically, if the current channel using the channel and channel allocation scheme indicated in the same, the currently used channel is maintained, if not, the channel is switched to channel allocation scheme indicated.

[0174] 图6为本发明一实施例集中控制器的结构示意图,如图6所示,该集中控制器可以包括:第一接收模块61、第二接收模块62、计算模块63和处理模块64。 [0174] FIG 6 schematic structural diagram of a centralized controller in the present embodiment of the invention, shown in FIG. 6, the centralized controller may include: a first receiving module 61, a second receiving module 62, a processing module 63 and calculation module 64 . 其中,该第一接收模块61用于接收预设域内的至少一个AP上报的受相邻AP干扰的信号干扰信息;该第二接收模块62用于接收该至少一个AP上报的负载信息;该计算模块63用于根据接收到的该至少一个AP中各AP上报的该信号干扰信息和该各AP的负载信息确定该各AP的综合干扰值; 该处理模块64用于根据该至少一个AP的综合干扰值确定该各AP的目标信道,并分别将该各AP的目标信道的指示信息发送给该各AP。 Wherein the first receiving module 61 for receiving the preset signal interference information by at least one neighbor AP AP interference reported by the art; the second receiving module 62 for receiving the load information reported by the at least one AP; the calculation the integrated module 63 for determining the interference level of each AP according to the received at least one AP in each AP reported by the signal interference information and the load information of each AP; the processing module 64 for at least one AP based on the synthesis of determining a target interference value for each channel of the AP and the target channel information indicative of each of each AP transmits to the AP, respectively.

[0175] 可选地,该第二接收模块62可以具体用于:接收该至少一个AP周期性上报的该负载信息。 [0175] Alternatively, the second receiving module 62 may be specifically configured to: receive the at least one load information periodically reported by the AP.

[0176] 可选地,该第一接收模块61可以具体用于:在达到预设触发条件时,向预设域内的至少一个AP依次发送邻居探测指示信息,以指示该至少一个AP中各AP通过变换信道探测相邻AP对该各AP产生干扰的信号强度;接收该至少一个AP返回的邻居探测结果,该邻居探测结果包括该至少一个AP中各AP探测到的相邻AP对该各AP产生干扰的信号强度。 [0176] Alternatively, the first receiving module 61 may be specifically configured to: upon reaching a predetermined trigger condition, to at least one AP transmitted sequentially within a predetermined neighbor sounding instruction information to indicate that the at least one AP in each AP by changing channels interfere with the detection of each neighboring AP AP signal strength; receiving the at least one neighbor detection result returned by the AP, the neighbor detection result includes the at least one AP in each AP detected the respective neighbor AP AP generating a signal strength of the interference.

[0177] 可选地,该该计算模块63可以具体用于:根据公式Sfki X Clij计算该各AP的综合干扰值,其中Sij为该至少一个AP中第i个AP受到相邻的第j个AP的综合干扰值,Ic i为根据该第i个AP上报的负载信息确定的负载值,(Iij为该第i个AP受到该第j个AP干扰的信号干扰信息确定的信号干扰值。 [0177] Alternatively, the computing module 63 which may be specifically configured to: calculate an integrated value of the interference of each AP according to the formula Sfki X Clij, wherein the at least one AP Sij for the i-th AP by the j-th adjacent signal interference information signal interference value determined by the integrated value AP interference, Ic i by the j-th interfering AP value according to the load of the i-th AP reported by the determined load information, (Iij for the i-th AP.

[0178] 可选地,该邻居探测指示信息还用于指示该各AP通过变换信道探测相邻AP的基本服务集标识BSSID和服务集标识SSID,则该邻居探测结果还包括该各AP探测到的相邻AP的BSSID和SSID,则该计算模块63可以具体用于:根据接收到该至少一个AP中第i个AP上报的相邻的第j个AP的BSSID,确定该第j个AP是否为该预设域内的AP ;若是,则根据公式Sij=Ici X Clij计算该第i个AP的综合干扰值,其中Sij为该第i个AP受到该第j个AP 干扰的综合干扰值,h为根据该第i个AP上报的负载信息确定的负载值,Clij为该第i个AP 受到该第j个AP干扰的信号干扰信息确定的信号干扰值;若否,则根据公式Sfki X Clij X Ilj 计算该第i个AP的综合干扰值,其中Sij为该第i个AP受到该第j个AP干扰的综合干扰值,&为根据该第i个AP上报的负载信息确定的负载值,Cl ij为该第i个AP受到该第j个AP干扰的信号干扰信息确定的信 [0178] Alternatively, the probe neighbor indication information for indicating further identifies each AP BSSID and SSID Service Set Identifier neighboring AP detection basic service set by changing channels, the detection result further comprises a neighbor AP of the respective detected the neighboring AP BSSID and the SSID, the calculation module 63 may be specifically configured to: according to the j-th adjacent BSSID of the AP receiving the at least one i-th AP reported by the AP, determines whether or not the j-th AP AP is the predetermined domain; if yes, according to the formula Sij = Ici X Clij calculated integrated value of the interference of the i-th AP, where Sij for the integrated value of the i-th AP interference by the interference of the j-th AP, h according to the load value of the i-th AP reported by the determined load information, Clij AP by the i-th interference signal the interference signal information for determining the value of the j-th interference for AP; if not, then according to the formula Sfki X Clij X Ilj calculated integrated value of the interference of the i-th AP, where Sij for the integrated value of the i th interference to the AP by the j-th interfering AP, & load value determined based on the i-th AP reports load information, Cl signal interference ij for the i-th AP AP by the j-th interfering channel information determined 号干扰值,h为比例因子,该卜的大小是由该集中控制器根据该第j个AP的SSID确定的。 No interference value, h is the scale factor, the size of the BU by the centralized controller determines based on the j-th SSID to the AP.

[0179] 可选地,该第i个AP受到该第j个AP干扰的信号干扰信息包括该第i个AP受到该第j个AP干扰的信号强度,该计算模块63还可以用于:根据该第i个AP受到该第j个AP干扰的信号强度和公式 Signal interference information [0179] Alternatively, the i-th AP by the j-th interfering AP includes the i-th AP AP by the j-th interfering signal strength, the computing module 63 may also be used: The the i-th AP AP by the j-th interfering signal strength and formulas

[0180] [0180]

Figure CN104349480AD00201

,计算该dij; , Calculated Dij;

[0181] 其中,B为该第i个AP受到该第j个AP干扰的信号强度,By、By+1和B m分别为预设的由小到大的第1个、第y个、第y+1个和第m个信号强度门限值,m为设置的信号强度门限值的个数。 [0181] wherein, B i-th AP AP by the j-th interfering signal strength for that, By, By + 1 and B m are preset in ascending 1st, y-th, y + 1 th and m-th signal strength threshold, m is the signal strength of the door set threshold number.

[0182] 可选地,该第i个AP上报的负载信息包括下述信息中的至少一种:占空比、关联用户数、并发用户数和流量。 [0182] Alternatively, the i-th AP reported load information comprises at least one of: the duty cycle, the associated number of users, number of concurrent users and traffic.

[0183] 可选地,当该负载信息包括该占空比时,该计算模块63还可以用于: [0183] Alternatively, when the load information includes the duty ratio, the calculation module 63 may be further configured to:

[0184] 根据该第i个AP上报的占空比和公式 [0184] reported by the duty cycle of the i-th AP and the formula

Figure CN104349480AD00211

计算得出该第i个AP的负载值;其中,Dx为该第i个AP的第X个时间段的占空比,Ax为该第X个时间段的占空比的加权因子,且满足 Calculated load value of the i-th AP; wherein, Dx duty ratio for the i-th X-th period of the AP, for the duty ratio Ax of the X-th time weighting factor, and satisfying

Figure CN104349480AD00212

η为选取的时间段的总个数。 η is the total number of the selected time period.

[0185] 可选地,该处理模块64可以具体用于:将该至少一个AP的综合干扰值组成干扰矩阵,并将该干扰矩阵与初始选取的信道分配矩阵相结合得到初始总干扰值;利用模拟退火算法将该初始总干扰值作为模拟退火算法的初始内能,随机选取信道分配矩阵与该干扰矩阵作为该模拟退火算法的新内能,经过预设迭代最终确定该各AP的目标信道。 [0185] Alternatively, the processing module 64 may be specifically configured to: the at least one interfering integrated value AP interference matrix composition, and the interference matrix and an initial allocation matrix selected channel combination to obtain an initial total interference value; using can randomly select the initial simulated annealing algorithm to the initial total interference value as a simulated annealing algorithm for channel allocation matrix of the interference matrix as the new the simulated annealing algorithm can, for a preset iteration ultimately determine the target channel of the respective AP.

[0186] 可选地,将上一次确定的信道分配方案对应的信道分配矩阵确定为本次该初始选取的信道分配矩阵。 [0186] Alternatively, the last determined channel allocation scheme corresponding to the channel assignment matrix to determine the present times of the initial channel assignment matrix selected.

[0187] 本实施例的装置,可以用于执行图1〜图3所示方法实施例的技术方案,其具体功能详见上述方法实施例,此处不再赘述。 [0187] Example apparatus according to the present embodiment may be used to perform the method shown in FIG. 1 ~ 3 technical solutions in the embodiments, their specific functions detailed above Example, is not repeated here.

[0188] 图7为本发明一实施例接入点的结构示意图,如图7所示,该接入点可以包括:第一上报模块71、第二上报模块72和接收模块73。 [0188] FIG. 7 is a schematic configuration of an access point to an embodiment of the present invention, shown in FIG. 7, the access point may include: a first reporting module 71, a second reporting module 72 and a receiving module 73. 其中,该第一上报模块71可以用于向集中控制器上报AP受相邻AP干扰的信号干扰信息;该第二上报模块72可以用于向该集中控制器上报该AP的负载信息;该接收模块73可以用于接收该集中控制器发送的目标信道的指示信息,并判断当前使用的信道与该指示信息指示的目标信道是否一致,若否,则将该目标信道作为新的使用信道,该目标信道是该集中控制器根据各AP上报的信号干扰信息和负载信息确定的。 Wherein the first reporting module 71 may be used by the AP to report the interference information signal interference to neighbor AP centralized controller; the second reporting module 72 may be used to report the load information to the central controller of the AP; the receiver module 73 may be configured to receive information indicating the target channel in the set sent by the controller, and determines whether the channel currently used by the indication information indicates the target channel consistent, if not, the target channel as a new channel is used, the the target channel is determined according to the centralized controller AP reported by the respective signal to interference information, and loading information.

[0189] 可选地,该第二上报模块72可以具体用于:周期性的向该集中控制器上报该AP的负载信息。 [0189] Alternatively, the second reporting module 72 may be specifically configured to: periodically reports the load information to the central controller of the AP.

[0190] 可选地,该第一上报模块71可以具体用于:根据接收到的该集中控制器发送的邻居探测指示信息,向相邻AP发起邻居探测,该邻居探测包括探测该相邻AP对该AP产生干扰的信号强度;将该邻居探测的结果发送给该集中控制器,该邻居探测的结果包括该AP探测到的相邻AP对该AP产生干扰的信号强度。 [0190] Alternatively, the first reporting module 71 may be specifically configured to: according to the received neighbor sounding instruction information transmitted from the centralized controller, initiates neighbor to neighbor AP detection, the neighbor detecting comprises detecting the neighboring AP the interfering AP signal strength; transmitting the result to the detected neighbor centralized controller, neighbor detection result of the signal strength of the AP includes a probe to the neighbor AP interfering AP.

[0191] 可选地,该邻居探测还包括探测该相邻AP的基本服务集标识BSSID和服务集标识SSID,则该邻居探测的结果还包括该探测到的相邻AP的BSSID和SSID。 [0191] Alternatively, the neighbor detecting further comprises detecting the neighboring AP BSSID Basic Service Set Identifier and the SSID Service Set Identifier, then the result of detecting further comprises the neighbor of the neighbor AP of the detected BSSID and SSID.

[0192] 可选地,该AP的负载信息包括下述信息中的至少一种:占空比、关联用户数、并发用户数和流量。 [0192] Alternatively, the AP information includes load information of at least one of: the duty cycle, the associated number of users, number of concurrent users and traffic.

[0193] 本实施例的装置,可以用于执行图4所示方法实施例的技术方案,其具体功能详见上述方法实施例,此处不再赘述。 [0193] Example apparatus according to the present embodiment may be used to perform the method shown in FIG. 4 technical solutions in the embodiments, their specific functions detailed above Example, is not repeated here.

[0194] 图8为本发明一实施例无线网络信道分配系统的结构示意图,如图8所示,该系统可以包括:集中控制器81和接入点82。 Schematic structural diagram of a wireless network system, a channel assignment embodiment shown in [0194] FIG. 8 of the present invention, FIG. 8, the system may include: a central controller 81 and the access point 82. 其中,该集中控制器81可以采用本发明任意实施例所提供的集中控制器,其对应地,可以执行图1〜图3所示方法实施例的技术方案,其实现原理和技术效果类似,此处不再赘述;该接入点82可以采用本发明任意实施例所提供的AP,相应地,可以执行图4所示方法实施例的技术方案,其实现原理和技术效果类似,此处不再赘述。 Wherein the centralized controller 81 may be a centralized controller according to the present invention is provided in any embodiment, which corresponds to, a method may be performed as shown in FIG. 1 ~ FIG technical solution of the embodiment 3, similar to the implementation principles and technical effects of this at omitted; the access point 82 may employ AP embodiment of the present invention provided any embodiment, accordingly, the method may be performed as shown in FIG. 4 technical solutions of the embodiments, principles and techniques which achieve a similar effect, where no repeat.

[0195] 图9为本发明另一实施例集中控制器的结构示意图,如图9所示,该集中控制器可以包括:发射机91、接收机92、存储器93以及分别与该发射机91、该接收机92和该存储器93连接的处理器94,其中,该存储器93中存储一组程序代码,且该处理器94用于调用该存储器93中存储的程序代码,可以执行图1〜图3所示的方法实施例的技术方案,其具体功能详见上述方法实施例,此处不再赘述。 Example schematic structural diagram of another embodiment of the centralized controller shown in [0195] FIG. 9 of the present invention, FIG. 9, the centralized controller may include: a transmitter 91, a receiver 92, a memory 93 and the transmitter 91, respectively, the receiver 92 and a processor 93 is connected to the memory 94, wherein, the memory 93 stores a set of program code, the processor 94 and program code stored in the memory 93 for calling, may be performed in FIG. 1 ~ 3 the method illustrated technical solution of the embodiment, the above-described method refer to the specific embodiment features will not be repeated here.

[0196] 图10为本发明另一实施例接入点的结构示意图,如图10所示,该接入点可以包括:发射机101、接收机102、存储器103以及分别与该发射机101、该接收机102和该存储器103连接的处理器104,其中,该存储器103中存储一组程序代码,且该处理器104用于调用该存储器103中存储的程序代码,可以执行图4所示的方法实施例的技术方案,其具体功能详见上述方法实施例,此处不再赘述。 [0196] FIG 10 a schematic structural diagram of another embodiment of the present invention, the access point shown in FIG. 10, the access point may include: a transmitter 101, a receiver 102, a memory 103, and 101, respectively, to the transmitter, the receiver 102 and the memory 103 connected to processor 104, wherein, the memory 103 stores a set of program code and the program code for the processor 104 stored in memory 103 calls, may be performed as shown in FIG. 4 technical solutions in the embodiments, the specific features detailed above-described method embodiments, will not be repeated here.

[0197] 本领域普通技术人员可以理解:实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。 [0197] Those of ordinary skill in the art will be appreciated that: each of the foregoing methods may be accomplished relevant hardware by a program instructing all or part of the steps of FIG. 前述的程序可以存储于一计算机可读取存储介质中。 The program may be stored in a computer readable storage medium. 该程序在执行时,执行包括上述各方法实施例的步骤;而前述的存储介质包括:ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。 When the program is executed, comprising the step of performing the above-described method of the embodiment; and the storage medium comprising: a variety of medium may store program code ROM, RAM, magnetic disk, or optical disk.

[0198] 最后应说明的是:以上各实施例仅用以说明本发明的技术方案,而非对其限制; 尽管参照前述各实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。 [0198] Finally, it should be noted that: the above embodiments only describe the technical solutions in embodiments of the present invention, rather than limiting;. Although the embodiments of the present invention has been described in detail, those of ordinary skill in the art should appreciated: it still may be made to the technical solutions described embodiments modifications, or to some or all of the technical features equivalents; as such modifications or replacements do not cause the essence of corresponding technical solutions to depart from embodiments of the present invention range of technical solutions.

Claims (33)

  1. 1. 一种无线网络信道分配方法,其特征在于,包括: 集中控制器接收预设域内的至少一个接入点AP上报的受相邻AP干扰的信号干扰信息; 所述集中控制器接收所述至少一个AP上报的负载信息; 所述集中控制器根据接收到的所述至少一个AP中各AP上报的所述信号干扰信息和所述各AP的负载信息确定所述各AP的综合干扰值; 所述集中控制器根据所述至少一个AP的综合干扰值确定所述各AP的目标信道,并分别将所述各AP的目标信道的指示信息发送给所述各AP。 A radio channel assignment method, characterized by comprising: a centralized controller receives at least one signal interference information receiving neighbor AP of interference reported by the access point AP preset in the art; the centralized controller receives the AP reported by the at least one load information; the centralized controller at least one AP in each AP reported by the signal interference information and the load information of each AP determining the integrated values ​​of the interfering AP based on the received; the centralized controller determines that the target channel of each AP according to at least one AP of the integrated value of the interference, and indication information of the respective target channel of each AP transmits to each of the AP.
  2. 2. 根据权利要求1所述的方法,其特征在于,所述集中控制器接收所述至少一个AP上报的负载信息,包括: 所述集中控制器接收所述至少一个AP周期性上报的所述负载信息。 The centralized controller receiving the at least one AP periodically reported: 2. The method according to claim 1, characterized in that the centralized controller receives the load information reported by the at least one AP, comprising load information.
  3. 3. 根据权利要求1或2所述的方法,其特征在于,所述集中控制器接收预设域内的至少一个AP上报的受相邻AP干扰的信号干扰信息之前,还包括: 所述集中控制器在达到预设触发条件时,向预设域内的至少一个AP依次发送邻居探测指示信息,以指示所述至少一个AP中各AP通过变换信道探测相邻AP对所述各AP产生干扰的信号强度; 所述集中控制器接收预设域内的至少一个AP上报的受相邻AP干扰的信号干扰信息, 包括: 所述集中控制器接收所述至少一个AP返回的邻居探测结果,所述邻居探测结果包括所述至少一个AP中各AP探测到的相邻AP对所述各AP产生干扰的信号强度。 3. The method of claim 1 or claim 2, characterized in that said centralized receiving neighbor AP information signal interference interference reported by the at least one AP controller receives the preset prior art, further comprising: a centralized control at a predetermined trigger condition is reached, at least one AP sequentially sends a predetermined detection region neighbor indication information indicating at least one AP in each AP through a channel sounding signal is converted to generate interference to the neighboring AP in each AP intensity; the centralized controller receives within the preset signal receiving interference information reported by at least one neighboring AP AP interference, comprising: a centralized controller receives the at least one neighbor AP detection result returned by the neighbor sounding results comprises a signal strength of each of the at least one AP AP AP detected interference to adjacent said respective AP.
  4. 4. 根据权利要求1〜3任一项所述的方法,其特征在于,所述集中控制器根据接收到的所述至少一个AP中各AP上报的所述信号干扰信息和所述各AP的负载信息确定所述各AP 的综合干扰值,包括: 所述集中控制器根据公式SfkiXc^计算所述各AP的综合干扰值,其中\为所述至少一个AP中第i个AP受到相邻的第j个AP干扰的综合干扰值,&为根据所述第i个AP 上报的负载信息确定的负载值,&为所述第i个AP受到所述第j个AP干扰的信号干扰信息确定的信号干扰值。 The method according to any of claims 1 ~ 3, wherein said centralized controller according to the received at least one AP in each AP signal interference information reported by the AP and each of the determining load information of each AP of the integrated value of the interference, comprising: a central controller according to the formula SfkiXc ^ calculating the integrated values ​​of the interference of the AP, wherein \ the at least one AP in the AP by the i-th adjacent to the integrated values ​​of the j-th interfering AP interference, according to the load value & the i-th AP reported load information determined by signal interference & the j-th interfering AP information to the i-th AP determined signal interference value.
  5. 5. 根据权利要求1〜3任一项所述的方法,其特征在于,所述邻居探测指示信息还用于指示所述各AP通过变换信道探测相邻AP的基本服务集标识BSSID和服务集标识SSID,则所述邻居探测结果还包括所述各AP探测到的相邻AP的BSSID和SSID ; 所述集中控制器根据接收到的所述至少一个AP中各AP上报的所述信号干扰信息和所述各AP的负载信息确定所述各AP的综合干扰值,包括: 所述集中控制器根据接收到所述至少一个AP中第i个AP上报的相邻的第j个AP的BSSID,确定所述第j个AP是否为所述预设域内的AP ; 若是,则根据公式Sfki X扎计算所述第i个AP的综合干扰值,其中Su为所述第i个AP受到所述第j个AP干扰的综合干扰值,&为根据所述第i个AP上报的负载信息确定的负载值,&为所述第i个AP受到所述第j个AP干扰的信号干扰信息确定的信号干扰值; 若否,则根据公式SijikiXdijXhj计算所述第 The method according to any of claims 1 ~ 3, wherein said neighbor detecting indication information further indicates the basic service set for each AP is detected by converting the neighboring AP channels and service set identifier BSSID identified SSID, then the neighbor detection result of each further comprising said AP detected adjacent the SSID and BSSID of the AP; the interference information signal to the controller according to the received at least one AP in each AP reported by the centralized and load information of each AP determining the integrated value of each AP of the interference, comprising: a j-th AP BSSID of the controller according to the received at least one AP in the i-th AP reported by the adjacent set, the j-th AP determines whether the preset AP domain; if yes, according to the formula bar Sfki X calculates the integrated value of the interference of the i-th AP, wherein the first subject Su is the i-th AP integrated interference value of the j-th interfering AP, & load value according to the i-th AP reports the load information determined by the signal & interfere with the interference of the j-th information AP determined for the i-th AP interference value; if not, then according to the formula of calculating the SijikiXdijXhj i个AP的综合干扰值,其中Su为所述第i个AP受到所述第j个AP干扰的综合干扰值,&为根据所述第i个AP上报的负载信息确定的负载值,du为所述第i个AP受到所述第j个AP干扰的信号干扰信息确定的信号干扰值,比为比例因子,所述比的大小是由所述集中控制器根据所述第j个AP的SSID确定的。 Integrated interference value i-th AP, where Su is the i-th AP by the integrated value of the j-th interfering AP interference & according to the i-th AP load information reported by the determined load value, du is signal interference information signal interference value determined by the i-th AP AP of the j-th interference than the size of the scaling factor, the ratio is determined by the centralized controller based on the j-th SSID of the AP definite.
  6. 6. 根据权利要求4或5所述的方法,其特征在于,所述第i个AP受到所述第j个AP干扰的信号干扰信息包括所述第i个AP受到所述第j个AP干扰的信号强度,所述方法还包括: 根据所述第i个AP受到所述第j个AP干扰的信号强度和公式 The method according to claim 4 or claim 5, wherein, the i-th AP signal interference by the interference of the j-th AP information includes the i-th AP by the j-th interfering AP signal strength, the method further comprising: a signal intensity according to the formula and the i-th AP by the j-th interfering AP
    Figure CN104349480AC00031
    其中,B为所述第i个AP受到所述第j个AP干扰的信号强度,Bp By、By+1和Bm分别为预设的由小到大的第1个、第y个、第y+1个和第m个信号强度门限值,m为设置的信号强度门限值的个数。 Wherein, B is subjected to the i-th AP signal strength of the interference of the j-th AP, Bp By, By + 1 and Bm respectively preset first ascending 1, y-th, y +1 and an m-th threshold signal strength, m is the signal strength of the door set threshold number.
  7. 7. 根据权利要求4〜6任一项所述的方法,其特征在于,所述第i个AP上报的负载信息包括下述信息中的至少一种:占空比、关联用户数、并发用户数和流量。 The method according to any of claims 4 ~ 6, wherein the i-th AP reported load information comprises at least one of: a duty ratio, the number of associated users, concurrent users the number and flow.
  8. 8. 根据权利要求7所述的方法,其特征在于,当所述负载信息包括所述占空比时,所述方法还包括: 根据所述第i个AP上报的占空比和公式 8. The method according to claim 7, wherein, when said load information includes the duty, the method further comprising: a duty ratio and reported in accordance with the formula i-th AP
    Figure CN104349480AC00032
    计算得出所述第i个AP的负载值; 其中,Dx为所述第i个AP的第x个时间段的占空比,Ax为所述第x个时间段的占空比 Calculated load value of the i-th AP; wherein, Dx is the duty of the i-th x-th period of the AP, Ax is the duty of the period of time x
    Figure CN104349480AC00033
    n为选取的时间段的总个数。 n is the total number of the selected time period.
  9. 9. 根据权利要求1〜8任一项所述的方法,其特征在于,所述集中控制器根据所述至少一个AP的综合干扰值确定所述各AP的目标信道,包括: 所述集中控制器将所述至少一个AP的综合干扰值组成干扰矩阵,并将所述干扰矩阵与初始选取的信道分配矩阵相结合得到初始总干扰值; 所述集中控制器利用模拟退火算法将所述初始总干扰值作为模拟退火算法的初始内能,随机选取信道分配矩阵与所述干扰矩阵作为所述模拟退火算法的新内能,经过预设迭代最终确定所述各AP的目标信道。 9. The method according to any of claims 1~8, wherein said centralized controller of the target channel of each of said at least one integrated AP interference value determined according to the AP, comprising: a centralized control is the at least one interfering AP integrated value interference matrix composition, and the interference matrix and an initial allocation matrix selected channel combination to obtain an initial total interference value; and a controller using the simulated annealing algorithm to the initial total concentration as the initial disturbance value can be simulated annealing algorithm, randomly selected channel allocation matrix as a matrix of the interference within the new simulated annealing algorithm can, for a preset iteration ultimately determine the target channel of each AP.
  10. 10. 根据权利要求9所述的方法,其特征在于,将上一次确定的信道分配方案对应的信道分配矩阵确定为本次所述初始选取的信道分配矩阵。 10. The method according to claim 9, characterized in that the last determined channel allocation scheme corresponding to the present channel assignment matrix to determine a channel allocation matrix times said initial selected.
  11. 11. 一种无线网络信道分配方法,其特征在于,包括: 接入点AP向集中控制器上报所述AP受相邻AP干扰的信号干扰信息; 所述AP向所述集中控制器上报所述AP的负载信息; 所述AP接收所述集中控制器发送的目标信道的指示信息,并判断当前使用的信道与所述指示信息指示的目标信道是否一致,若否,则将所述目标信道作为新的使用信道,所述目标信道是所述集中控制器根据各AP上报的信号干扰信息和负载信息确定的。 11. A wireless network channel allocation method comprising: an access point (AP) AP to report the interference information to the centralized controller signal interference by neighboring AP; the AP to report to the centralized control of the AP load information; receiving the AP sent by the centralized controller indicating target channel information, and determines whether the channel currently used and the indication information is consistent with the target channel, if not, then the target channel as the new channel is used, the target channel is determined based on the centralized controller AP reported by the respective signal to interference information, and loading information.
  12. 12. 根据权利要求11所述的方法,其特征在于,所述AP向所述集中控制器上报所述AP 的负载信息,包括: 所述AP周期性的向所述集中控制器上报所述AP的负载信息。 12. The method according to claim 11, characterized in that the AP of the AP to report load information to the centralized controller, comprising: the AP periodically reporting to the centralized controller of the AP the load information.
  13. 13. 根据权利要求11或12所述的方法,其特征在于,所述AP向集中控制器上报所述AP受相邻AP干扰的信号干扰信息,包括: 所述AP根据接收到的所述集中控制器发送的邻居探测指示信息,向相邻AP发起邻居探测,所述邻居探测包括探测所述相邻AP对所述AP产生干扰的信号强度; 所述AP将所述邻居探测的结果发送给所述集中控制器,所述邻居探测的结果包括所述AP探测到的相邻AP对所述AP产生干扰的信号强度。 13. The method of claim 11 or 12, characterized in that said AP reporting interference signal information by the AP to the neighbor AP interference centralized controller, comprising: a centralized AP according to the received probe neighbor indication information sent by the controller to initiate neighbor detection neighboring AP, the neighbor detecting signal strength of the interfering AP comprises detecting said adjacent AP; the AP to the neighbor detection result is transmitted to the the centralized controller, the neighbor detection result includes signal strength of the detected neighbor AP AP interfering with the AP.
  14. 14. 根据权利要求13所述的方法,其特征在于,所述邻居探测还包括探测所述相邻AP 的基本服务集标识BSSID和服务集标识SSID,则所述邻居探测的结果还包括所述探测到的相邻AP的BSSID和SSID。 14. The method according to claim 13, wherein said probe further comprises a neighbor detecting the basic service set identification neighboring AP BSSID and the SSID Service Set Identifier, then the result of detecting further comprises the neighbor neighboring AP detected BSSID and SSID.
  15. 15. 根据权利要求11〜14任一项所述的方法,所述AP的负载信息包括下述信息中的至少一种:占空比、关联用户数、并发用户数和流量。 15. A method according to any one of claims 11~14, a load of the AP information comprises at least one of: the duty cycle, the associated number of users, number of concurrent users and traffic.
  16. 16. 一种集中控制器,其特征在于,包括: 第一接收模块,用于接收预设域内的至少一个接入点AP上报的受相邻AP干扰的信号干扰信息; 第二接收模块,用于接收所述至少一个AP上报的负载信息; 计算模块,用于根据接收到的所述至少一个AP中各AP上报的所述信号干扰信息和所述各AP的负载信息确定所述各AP的综合干扰值; 处理模块,用于根据所述至少一个AP的综合干扰值确定所述各AP的目标信道,并分别将所述各AP的目标信道的指示信息发送给所述各AP。 16. A centralized controller comprising: a first receiving means for receiving neighbor AP information signal interference received interference within at least one predetermined access point reported by the AP; a second receiving module, with to receive the load information reported by the at least one AP; calculating module for each AP reported by the AP signal interference information and the load information of each AP is determined according to the received at least one of said respective AP, integrated interference value; processing module, according to at least one AP integrated interference value of each channel determines the target AP and the target channel are each indicative of the AP information to each of the AP.
  17. 17. 根据权利要求16所述的集中控制器,其特征在于,所述第二接收模块具体用于:接收所述至少一个AP周期性上报的所述负载信息。 17. The centralized controller according to claim 16, wherein the second receiving module is configured to: receive the load information periodically reported by the at least one AP.
  18. 18. 根据权利要求16或17所述的集中控制器,其特征在于,所述第一接收模块具体用于:在达到预设触发条件时,向预设域内的至少一个AP依次发送邻居探测指示信息,以指示所述至少一个AP中各AP通过变换信道探测相邻AP对所述各AP产生干扰的信号强度; 接收所述至少一个AP返回的邻居探测结果,所述邻居探测结果包括所述至少一个AP中各AP探测到的相邻AP对所述各AP产生干扰的信号强度。 Centralized controller according to claim 16 or 17, wherein the first receiving module is configured to: upon reaching a predetermined trigger condition is sequentially transmitted to at least one AP neighbor detection indication preset in the art information indicating each of the at least one AP AP AP signal strength of the interfering adjacent each AP by detecting changing channels; receiving the neighbor detection result returned by the at least one AP, the neighbor detection result includes the at least one signal strength of each AP AP AP detected adjacent each of the interfering AP.
  19. 19. 根据权利要求16〜18任一项所述的集中控制器,其特征在于,所述计算模块具体用于:根据公式Sfki X扎计算所述各AP的综合干扰值,其中Su为所述至少一个AP中第i个AP受到相邻的第j个AP的综合干扰值,&为根据所述第i个AP上报的负载信息确定的负载值,&为所述第i个AP受到所述第j个AP干扰的信号干扰信息确定的信号干扰值。 19. The centralized controller according to claim any one of claims 16~18, wherein the calculating module is configured to: calculate the composite tie disturbance value of each AP according to the formula Sfki X, wherein said Su the at least one AP subject to the i-th AP integrated interference value j-th adjacent to the AP, according to the load value & the i-th AP reports the load information determined by the & is the i-th AP AP signal interference j-th interfering signal interference information determined value.
  20. 20. 根据权利要求16〜18任一项所述的集中控制器,其特征在于,所述邻居探测指示信息还用于指示所述各AP通过变换信道探测相邻AP的基本服务集标识BSSID和服务集标识SSID,则所述邻居探测结果还包括所述各AP探测到的相邻AP的BSSID和SSID,则所述计算模块具体用于: 根据接收到所述至少一个AP中第i个AP上报的相邻的第j个AP的BSSID,确定所述第j个AP是否为所述预设域内的AP ; 若是,则根据公式Sfki X dij计算所述第i个AP的综合干扰值,其中Sij为所述第i个AP受到所述第j个AP干扰的综合干扰值,&为根据所述第i个AP上报的负载信息确定的负载值,&为所述第i个AP受到所述第j个AP干扰的信号干扰信息确定的信号干扰值; 若否,则根据公式SijikiXdijXhj计算所述第i个AP的综合干扰值,其中Su为所述第i个AP受到所述第j个AP干扰的综合干扰值,&为根据所述第i个AP上报的负载信息 20. The centralized controller according to claim any one of claims 16~18, wherein the neighbor sounding indication information further indicates the basic service set for each of the AP by detecting changing channels and neighboring AP identified BSSID a service set identifier SSID, then the detection result further comprises a neighbor AP of the respective detected neighboring AP BSSID and SSID, then the calculation module is configured to: at least one AP in the i-th AP according to the received reported the j-th adjacent AP's BSSID, of the j-th AP determines whether the preset AP domain; if yes, calculated according to the formula Sfki X dij the integrated value of the i-th AP interference, wherein Sij is the i-th AP by the integrated value of the j-th interfering AP interference, according to the load value & the i-th AP reported by the determined load information, & subjected to the i-th AP said AP j-th signal interference information to determine the interference signal to interference value; if not, then the integrated value of the i th interference AP according to the calculation formula SijikiXdijXhj, wherein Su by the j-th to the i-th AP AP integrated interference value interference is & reported by the AP to the i-th load information 确定的负载值,&为所述第i个AP受到所述第j个AP干扰的信号干扰信息确定的信号干扰值,比为比例因子,所述比的大小是由所述集中控制器根据所述第j个AP的SSID确定的。 Signal interference information signal interference value determined by the determined load value, by the j-th & AP interference is the i-th AP, than is the scale factor, the magnitude ratio is determined by the centralized controller in accordance with the said j-th SSID of the AP is determined.
  21. 21. 根据权利要求19或20所述的集中控制器,其特征在于,所述第i个AP受到所述第j个AP干扰的信号干扰信息包括所述第i个AP受到所述第j个AP干扰的信号强度,所述计算模块还用于: 根据所述第i个AP受到所述第j个AP干扰的信号强度和公式 21. The centralized controller of claim 19 or claim 20, wherein, the i-th AP information of the interference signal by the j-th interfering AP includes the i-th AP by the j th AP signal strength of the interference, the computing module is further configured to: subject to interference of the j-th AP according to the i-th AP and the signal strength of the formula
    Figure CN104349480AC00051
    其中,B为所述第i个AP受到所述第j个AP干扰的信号强度,Bp By、By+1和Bm分别为预设的由小到大的第1个、第y个、第y+1个和第m个信号强度门限值,m为设置的信号强度门限值的个数。 Wherein, B is subjected to the i-th AP signal strength of the interference of the j-th AP, Bp By, By + 1 and Bm respectively preset first ascending 1, y-th, y +1 and an m-th threshold signal strength, m is the signal strength of the door set threshold number.
  22. 22. 根据权利要求19〜21任一项所述的集中控制器,其特征在于,所述第i个AP上报的负载信息包括下述信息中的至少一种:占空比、关联用户数、并发用户数和流量。 22. The centralized controller according to claim any one of claims 19~21, wherein the i-th AP reported load information comprises at least one of: a duty ratio, the number of associated users, the number of concurrent users and traffic.
  23. 23. 根据权利要求22所述的集中控制器,其特征在于,当所述负载信息包括所述占空比时,所述计算模块还用于: 根据所述第i个AP上报的占空比和公式 23. The centralized controller according to claim 22, wherein, when said load information includes the duty, the computing module is further configured to: report in accordance with the duty ratio of the i-th AP and formulas
    Figure CN104349480AC00052
    计算得出所述第i个AP的负载值; 其中,Dx为所述第i个AP的第x个时间段的占空比,Ax为所述第x个时间段的占空比 Calculated load value of the i-th AP; wherein, Dx is the duty of the i-th x-th period of the AP, Ax is the duty of the period of time x
    Figure CN104349480AC00053
    1为选取的时间段的总个数。 1 is the total number of the selected time period.
  24. 24. 根据权利要求16〜23任一项所述的集中控制器,其特征在于,处理模块具体用于: 将所述至少一个AP的综合干扰值组成干扰矩阵,并将所述干扰矩阵与初始选取的信道分配矩阵相结合得到初始总干扰值;利用模拟退火算法将所述初始总干扰值作为模拟退火算法的初始内能,随机选取信道分配矩阵与所述干扰矩阵作为所述模拟退火算法的新内能, 经过预设迭代最终确定所述各AP的目标信道。 24. The centralized controller according to claim any one of claims 16~23, wherein the processing module is configured to: at least one of said integrated value AP interfering interference matrix composition, and the interference matrix and an initial selecting a channel allocation matrix combination to obtain an initial total interference value; simulated annealing algorithm as the initial value of total interference can randomly select the channel allocation within the original matrix of the interference matrix of simulated annealing algorithm, as the simulated annealing algorithm the new internal energy, for a preset iteration final determination of the target channel of each AP.
  25. 25. 根据权利要求24所述的集中控制器,其特征在于,将上一次确定的信道分配方案对应的信道分配矩阵确定为本次所述初始选取的信道分配矩阵。 25. The centralized controller according to claim 24, characterized in that the last determined channel allocation scheme corresponding to the channel assignment matrix to determine a channel allocation matrix-oriented views of the initial selected.
  26. 26. -种接入点,其特征在于,包括: 第一上报模块,用于向集中控制器上报接入点AP受相邻AP干扰的信号干扰信息; 第二上报模块,用于向所述集中控制器上报所述AP的负载信息; 接收模块,用于接收所述集中控制器发送的目标信道的指示信息,并判断当前使用的信道与所述指示信息指示的目标信道是否一致,若否,则将所述目标信道作为新的使用信道,所述目标信道是所述集中控制器根据各AP上报的信号干扰信息和负载信息确定的。 26. - kind of access point, comprising: a first reporting module configured to report interference information signal by the access point AP to the neighbor AP interference centralized controller; a second reporting module configured to the AP centralized controller to report the load information; receiving means for receiving information indicative of the concentration of the target channel transmitted from the controller, and determines whether the channel coincides with the target channel indication information indicating a currently used, and if not , the target channel will be used as the new channel, the target channel is determined based on the centralized controller AP reported by the respective signal to interference information, and loading information.
  27. 27. 根据权利要求26所述的接入点,其特征在于,所述第二上报模块具体用于:周期性的向所述集中控制器上报所述AP的负载信息。 27. The access point according to claim 26, wherein the reporting module is used for the second: the centralized controller to periodically reporting the load information of the AP.
  28. 28. 根据权利要求26或27所述的接入点,其特征在于,所述第一上报模块具体用于: 根据接收到的所述集中控制器发送的邻居探测指示信息,向相邻AP发起邻居探测,所述邻居探测包括探测所述相邻AP对所述AP产生干扰的信号强度;将所述邻居探测的结果发送给所述集中控制器,所述邻居探测的结果包括所述AP探测到的相邻AP对所述AP产生干扰的信号强度。 28. The access point of claim 26 or claim 27, wherein said first module is configured to report: probe concentration neighbor indication information sent by the controller according to the received, initiates a neighbor AP detecting a neighbor, the neighbor detecting signal strength of the interfering AP AP comprises detecting said adjacent; transmitting the neighbor detection result to the centralized controller, comprising the detection result of the neighbor AP detection neighboring AP to generate interference to the AP signal strength.
  29. 29. 根据权利要求28所述的接入点,其特征在于,所述邻居探测还包括探测所述相邻AP的基本服务集标识BSSID和服务集标识SSID,则所述邻居探测的结果还包括所述探测到的相邻AP的BSSID和SSID。 29. The access point according to claim 28, wherein said probe further comprising a neighbor detection result of the neighbor detecting a basic service set identifier of the neighboring AP BSSID and the SSID Service Set Identifier, then the further comprises the neighboring AP detected BSSID and SSID.
  30. 30. 根据权利要求26〜29所述的接入点,其特征在于,所述AP的负载信息包括下述信息中的至少一种:占空比、关联用户数、并发用户数和流量。 30. The access point according to claim 26~29, wherein the load of the AP information comprises at least one of: the duty cycle, the associated number of users, number of concurrent users and traffic.
  31. 31. -种无线网络信道分配系统,其特征在于,包括如权利要求16〜25任一项所述的集中控制器和如权利要求26〜30任一项所述的接入点。 31. - kind of wireless network channel distribution system, characterized by comprising any of claims 16~25 as a centralized controller and the access point as claimed in claim any one of claims 26~30.
  32. 32. -种集中控制器,其特征在于,包括:发射机、接收机、存储器以及分别与所述发射机、所述接收机和所述存储器连接的处理器,其中,所述存储器中存储一组程序代码,且所述处理器用于调用所述存储器中存储的程序代码,执行如权利要求1〜10任一项所述的方法。 32. - kind of centralized controller comprising: a transmitter, a receiver, a memory and a processor are the transmitter, the receiver and the memory is connected, wherein stored in the memory a group program code, and the processor is configured to call the program codes stored in the memory, the method according to any one of claims 1~10 performed.
  33. 33. -种接入点,其特征在于,包括:发射机、接收机、存储器以及分别与所述发射机、 所述接收机和所述存储器连接的处理器,其中,所述存储器中存储一组程序代码,且所述处理器用于调用所述存储器中存储的程序代码,执行如权利要求11〜15任一项所述的方法。 33. - kind of access point, comprising: a transmitter, a receiver, a memory and a processor are the transmitter, the receiver and the memory is connected, wherein stored in the memory a group program code, and the processor is configured to call the program codes stored in the memory, the method according to any one of claims 11~15 performed.
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