CN103686796B - Radio channel selection method for uninterrupted communication - Google Patents

Radio channel selection method for uninterrupted communication Download PDF

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CN103686796B
CN103686796B CN 201310724519 CN201310724519A CN103686796B CN 103686796 B CN103686796 B CN 103686796B CN 201310724519 CN201310724519 CN 201310724519 CN 201310724519 A CN201310724519 A CN 201310724519A CN 103686796 B CN103686796 B CN 103686796B
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ap
sta
wireless
radio
time
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CN103686796A (en )
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李琦
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深圳市双赢伟业科技股份有限公司
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Abstract

本发明提出一种不间断通讯的无线信道选择方法,其用于完成对WIFI应用中AP和STA信道调整的方案,其包括:步骤S1:AP/STA启动后,通过调度服务单元的调度,AP将向WiFi网络内与之连接验证的STA进行授时,建立无线区域内统一的高精度相对时间服务;步骤S2:AP周期性的探测和分析周边无线环境特点,配合本地无线网络的流量统计结果,对相关无线参数进行调整;步骤S3:AP启动无线参数广播、调整、验证的事务流程,STA配合AP,同步完成本地无线参数调整。 The present invention provides a continuous communication radio channel selection method, which is used for WIFI applications of protocol AP and the STA channel adjustment, comprising: Step S1: After the AP / STA starts scheduling by scheduling service unit, AP when connected thereto verified within the WiFi network will grant the STA to establish a unified wireless area with high accuracy relative time services; step S2: AP periodic detection and analysis of the characteristics of the surrounding radio environment, with a local wireless network traffic statistics, relevant wireless parameter adjustment; step S3: AP promoter broadcast radio parameters to adjust, verify the transaction process, the STA with the AP, a wireless local synchronization parameter adjustment is completed. 本发明的不间断通讯的无线信道选择方法对适合应用于住宅区中多家庭无线共存、公共场合多无线共存造成的复杂、拥堵的WIFI环境。 Uninterrupted communications complex radio channel selection method of the present invention suitable for use in residential areas of the wireless coexistence in multi-family, multi-radio coexistence public caused by congestion WIFI environment.

Description

一种不间断通讯的无线信道选择方法 Radio channel selection method for uninterrupted communication

技术领域 FIELD

[0001]本发明涉及无线通信领域,尤其涉及一种不间断通讯的无线信道选择方法。 [0001] The present invention relates to wireless communications, and in particular relates to a method for selecting a radio channel uninterrupted communication.

背景技术 Background technique

[0002] WiFi无线网络使用2.4G/5G作为其工作频段,可以采用的信道无线频段资源十分有限,特别当WiFi标准大量进化到802.1 In最高可支持300Mbps后,频段资源变得十分紧张。 [0002] WiFi wireless network uses a 2.4G / 5G as its operating band, channel radio band resource can be used is very limited, especially when a large number of WiFi standards evolve to support 802.1 In the maximum 300Mbps, band resource becomes very tight. 特别在住宅区或部分公共场合出现小范围空间(直径100M)大量无线AP(Access Point,无线热点)共存,而这些AP受常规技术的限制,不能够动态的调整自身的信道、频段宽度、无线突发参数、节电等内容,造成无线通讯严重拥堵,速率、延迟严重恶化,同时部分频段等无线资源却被浪费无法使用。 It occurs particularly small space in residential or partially public (diameter 100M) number of wireless AP (Access Point, wireless hotspots) coexist, but these AP limited by conventional techniques, can not dynamically adjust its channel width of the band, the radio burst parameters, energy-saving and other content, causing serious congestion of wireless communications, the rate of serious deterioration, delay, while some bands such as radio resource is wasted can not be used.

[0003]当前的无线技术允许AP在最初启动时探测周边信道占用情况,自动选择较空闲的信道工作,但这一功能存在明显的缺陷,主要表现在: [0003] Current technology allows wireless AP peripheral channel occupancy detection, automatic channel selection work less busy at initial startup, but there are significant drawbacks to this feature, the main problems:

[0004] 1.AP启动后不再具有调整信道的功能,不能随周边无线环境的变化调整WiFi网络的参数使其工作在最优状态; After [0004] 1.AP start adjusting a channel having no function can not be adjusted with changes in the surrounding environment of the wireless WiFi network parameters to work in optimal state;

[0005] 2.AP的任何无线参数修改,都需要STA(Stat1n,接入站点)设备的无线网络被长时间(大于30秒)切断、重连接,这在STA设备进行流媒体应用(如视频、音频),以及不支持重试的服务时是不可接受的。 Any wireless parameter modification [0005] 2.AP, requires STA (Stat1n, AP) of the wireless network apparatus is long (more than 30 seconds) cutting, reconnection, which streaming media applications (e.g., video device STA audio), and does not support retry the service is not acceptable.

[0006]随无线城市和家庭无线网络的普及,智能手机等支持WiFi的移动设备的增加,对充分利用现有无线频段资源,改善无线通讯质量的需求越来越紧迫。 [0006] with the wireless city and the popularity of home wireless networks, smart phones and other mobile devices support WiFi increases, the demand for full use of existing wireless spectrum resources and improve the quality of wireless communications more and more urgent.

[0007]因此,如何解决当前WIFI网络出现的多独立网络小范围空间共存,造成无线拥堵同时无线资源被浪费、通讯质量严重下降的缺陷的问题,已成为当前急需解决的技术问题。 [0007] Therefore, how to solve the coexistence of multi-network independent small space appear in the current WIFI network, wireless congestion while causing the radio resources are wasted, a serious decline in the quality of the communication problem of defects has become the current technical problems need to be resolved.

发明内容 SUMMARY

[0008]为了解决现有技术的上述问题,本发明提供一种不间断通讯的无线信道选择方法,以解决当前WIFI网络出现的多独立网络小范围空间共存,造成无线拥堵同时无线资源被浪费,通讯质量严重下降的缺陷。 [0008] In order to solve the aforementioned problems of the prior art, the present invention provides a method for selecting a radio channel uninterrupted communications, to address multiple independent networks coexist small space currently appears WIFI network, causing congestion while wireless radio resources are wasted, communication serious decline in quality defects.

[0009] 一种不间断通讯的无线信道选择方法,其用于完成对WIFI应用中AP和STA信道调整的方案,其包括: [0009] An uninterruptible communication radio channel selection method, which is used for WIFI applications of protocol AP and the STA channel adjustment, comprising:

[0010] 步骤S1:AP/STA启动后,AP将向WiFi网络内与之连接验证的STA进行授时,建立无线区域内统一的高精度相对时间服务; [0010] Step S1: When the AP / STA starts, the AP will validate the WiFi network connected thereto grant the STA, the wireless area to establish uniform precision relative time services;

[0011]步骤S2:AP周期性的探测和分析周边无线环境特点,配合本地无线网络的流量统计结果,对相关无线参数进行调整; [0011] Step S2: AP periodic detection and analysis of the characteristics of the surrounding radio environment, with a local wireless network traffic statistics, radio related parameters adjusted;

[0012] 步骤S3:AP启动无线参数广播、调整、验证的事务流程,STA配合AP,同步完成本地无线参数调整。 [0012] Step S3: AP promoter broadcast radio parameters to adjust, verify the transaction process, the STA with the AP, a wireless local synchronization parameter adjustment is completed.

[0013]其中,所述不间断通讯的无线信道选择方法进一步包括步骤S4:验证并完成参数调整事务处理。 [0013] wherein said uninterrupted communication radio channel selection method further comprises the step S4: verify and the transaction is completed parameter adjustment.

[0014]其中,步骤SI进一步包括 [0014] wherein, further comprising the step SI

[0015]步骤Sll:无线基础驱动及无线直接控制通道的初始化及建立; [0015] Step Sll: initialization and establish a wireless infrastructure and a wireless direct drive of the control channel;

[0016]步骤S12:无线区域高精度时间服务的建立。 [0016] Step S12: establishing a wireless service area precision time.

[0017] 其中,步骤S12进一步包括: [0017] wherein the step S12 further comprises:

[0018] AP端通过本地时间源获取实时时间或开机时间作为本无线区域授时采用的相对时间标准; [0018] AP obtain real time or end time by the local power source as a time relative timing of the present time using standard radio zone;

[0019] AP周期性通过扩展的心跳包向所有STA广播进行授时; [0019] AP periodically broadcasting time service to all the STA through an extended heartbeat packets;

[0020] STA监听到授时命令和时间后,校准本地的相对时间,并传回授时结果; After the [0020] STA listens to the command and the timing when the time alignment relative local time, and returns results when the feedback;

[0021] AP接收STA发回的授时结果,计算无线延迟,参考当前无线通讯流量判定授时是否有效;如果某STA授时时间过长,则在无线包超时范围内多次授时;如发现仍有STA不能通过授时,则通过AP外部API发出警告; [0021] Timing results received by the AP STA sends back, calculating the wireless delay, the current wireless communication traffic is determined whether a valid timing reference; when if a STA feedback time is too long, then repeatedly granted in the radio packet timeout range; found still STA It can not be granted when the warning is issued by the AP outside the API;

[0022] STA通过授时且为首次,启动内部的定时器服务。 [0022] STA through the grant and for the first time, an internal timer is started service.

[0023]步骤S2中,AP周边无线环境特点包括:AP周边各无线信道出现的其他无线网络的数量及信号强度、AP周边其他无线网络宽无线频道的分布情况、无线网络中各通过认证的STA的信道、频道宽度、无线突发模式、无线巨型包等的支持能力、和无线网络当前的网络流量。 [0023] In step S2, the peripheral AP wireless environment features include: the number of other wireless network signal strength of the respective wireless channels occurring outside AP, AP other neighboring wireless networks wide distribution of radio channels, each radio network certified STA channel, the channel width, the radio burst mode, the wireless packet massive support such capabilities, a wireless network and current network traffic.

[0024]其中,无线参数广播、调整、验证的事务流程具体如下: [0024] wherein broadcast radio parameters to adjust, verify the transaction flow as follows:

[0025] AP通过心跳包通知所有STA启动参数调整流程,并提供参数调整的描述; [0025] AP notifies all STA Start heartbeat packet by adjusting process parameters, and provides a description of parameter adjustment;

[0026] STA上报自身参数相关的能力,特别提供保证能够进行参数调整的相对时间; [0026] STA reports related to their ability to parameters, in particular, can be provided to ensure the relative time of parameter adjustment;

[0027] AP验证STA的参数调整能力,同时取各STA上报可以完成操作的相对时间中的最大值,参考各STA的无线延迟,提出执行操作的相对时间; [0027] AP STA's authentication parameter adjustment capability, while the maximum value reported by each STA operation can be completed in a relative time reference radio delay each STA, is proposed to perform an operation relative time;

[0028] AP通过心跳包将本次参数调整的具体内容和执行操作的相对时间广播至所有STA ; [0028] AP by the heartbeat packet of this specific content and parameter adjustment operations performed relative to the broadcast time of all the STA;

[0029] STA收到本次操作具体内容后,确认并通知AP;若确认失败,则向AP提交确认失败信息,及失败原因; [0029] STA after receiving the specific content of this operation, confirm and notify the AP; if validation fails, the failure information, and the reason for the failure to confirm the submission to the AP;

[0030] AP得到所有STA的确认信息后,通过广播启动本次操作;如果仍有STA确认失败,根据失败原因进行调整,或取消本次调整; After the [0030] AP STA to obtain the profile of all, this operation starts by broadcasting; validation fails if there STA, adjusted according to the cause of failure, or cancel the adjustment;

[0031] AP/STA收到启动本次操作信息后,设置定时器,在协商的执行时间通过无线直接控制通道完成本次操作,并提交成功信息; [0031] AP / STA receives this operation information after starting timer is set, the execution time of the negotiation to complete this operation by directly controlling the radio channels, and submit the information successfully;

[0032] AP验证收到的成功信息,完成本次操作。 [0032] AP authentication success information received, to complete this operation.

[0033I其中,所有参数调整和验证均在有限个AP心跳包中完成。 [0033I wherein, all of the parameter adjustment and verification are completed in a finite number of AP heartbeat packets.

[0034] 其中,AP/STA通讯通过心跳包实现。 [0034] wherein, AP / STA communications, heartbeat packet.

[0035]与现有技术相比较,采用本发明的不间断通讯的无线信道选择方法,AP实时对网络环境进行监测,在不影响无线网络通讯的前提下,配合周围STA或AP的变化,调整自身的网络参数,始终使自身网络处于最优状态,可以很好解决现有技术中网络参数配置不能配合无线环境的变化、无线网络变化会造成长时间断网、无线资源被大量浪费等问题。 [0035] Compared with the prior art, the present invention is an uninterruptible communication radio channel selection method, AP network environment in real time to monitor, without the influence of wireless communication network, with the change in the ambient STA or AP, the adjustment own network parameters, always make their own network in an optimal state, can be solved prior art network configuration parameters can not cope with changes in the wireless environment, wireless network changes will result in a long time off the network, wireless resources are wasting a lot of other issues.

附图说明 BRIEF DESCRIPTION

[0036]图1是本发明不间断通讯的无线信道选择方法中无线客户端STA的模块结构图。 [0036] FIG. 1 is a radio channel selection method of the present invention in continuous communication module configuration diagram of a wireless client STA.

[0037]图2是本发明不间断通讯的无线信道选择方法中无线客户端AP的模块结构图。 [0037] FIG. 2 is a block configuration diagram of a radio channel selection method of the present invention, continuous communication in the wireless client AP.

具体实施方式 detailed description

[0038] 如图1和图2所示,在本发明的实施例的AP/STA架构中,AP/STA基础驱动(BasicDriver)为原AP或STA原始驱动,AP/STA直接控制通道(Direct Control Channel)为根据无线网卡芯片的类型,特别实现的无线直接控制通道。 [0038] FIGS. 1 and 2, the AP embodiment of the present invention embodiment / STA architecture, AP / STA base driver (BasicDriver) original AP or STA original drive, AP / STA direct control channel (Direct Control channel) according to the type of wireless network card chip, in particular to achieve direct control of the radio channel. 二者共同实现对无线底层硬件的控制。 Both together to achieve control of the wireless underlying hardware. AP/STA WiFi时间服务单元(Area Time service)包括本地高精度定时器(Local HighResolut1n Timer),高精度时间同步服务单元(High Resolut1n Ticker Sync),这些模块为无线区域内的AP/STA提供统一的高精度相对时间。 AP / STA WiFi service unit time (Area Time service) comprises a high precision local timer (Local HighResolut1n Timer), high-precision time synchronization service unit (High Resolut1n Ticker Sync), these modules provide a unified AP / STA within a radio zone precision relative time. AP/STA无线调整事务服务单元(Command Execute Daemon)为所有无线调整提供事务型服务。 AP / STA wireless transaction service adjustment means (Command Execute Daemon) adjusted to provide all wireless transactional services. AP广播单元(BroadcastDaemon)和STA收听单元(Listen Daemon)为WiFi提供高效的交互通道。 AP broadcasting unit (BroadcastDaemon) and listening STA unit (Listen Daemon) is a WiFi provide efficient interaction channel.

[0039] AP/STA调度服务单元(Schedule Service Daemon)为参数调整等各项AP/STA操作提供核心调度服务。 [0039] AP / STA scheduling service unit (Schedule Service Daemon) provide core services for the scheduling of adjustment parameters AP / STA operation. 无线参数收集服务单元(WiFi Area Informat1n Collect1n)提供周边无线环境参数收集服务。 Wireless parameter collection service unit (WiFi Area Informat1n Collect1n) provides the surrounding radio environment parameter collection services. 信道服务单元(Channel Service Unit)、带宽服务单元(Bandwidth Service Unit)、省电服务单元(Power Saver Service Unit)等为各项进行控制、调整的无线参数对应服务单元。 Channel service unit (Channel Service Unit), the bandwidth of the service unit (Bandwidth Service Unit), power service unit (Power Saver Service Unit) and the like for the various control, adjustment of a radio parameter corresponding to the service unit.

[0040]在本发明的实施例中,不间断通讯的无线信道选择方法包括如下步骤: [0040] In an embodiment of the present invention, the communication radio channel selection method comprises the steps of continuously:

[0041 ] 步骤S1:AP/STA启动后,通过调度服务单元的调度,AP将向WiFi网络内与之连接验证的STA进行授时,建立无线区域内统一的高精度相对时间服务; [0041] Step S1: the AP / STA started, the scheduling by scheduling service unit, the WiFi network will be connected thereto AP verification timing when STA, the wireless area to establish uniform precision relative time services;

[0042]步骤S2:AP周期性的探测和分析周边无线环境特点,配合本地无线网络的流量统计结果,对相关无线参数进行调整; [0042] Step S2: AP periodic detection and analysis of the characteristics of the surrounding radio environment, with a local wireless network traffic statistics, radio related parameters adjusted;

[0043] 步骤S3:AP启动无线参数广播、调整、验证的事务流程,STA配合AP,同步完成本地无线参数调整。 [0043] Step S3: AP promoter broadcast radio parameters to adjust, verify the transaction process, the STA with the AP, a wireless local synchronization parameter adjustment is completed.

[0044] 具体的,在上述步骤中, [0044] Specifically, in the above step,

[0045] 步骤SI进一步包括: [0045] Step SI further comprising:

[0046]步骤Sll:无线基础驱动及无线直接控制通道的初始化及建立。 [0046] Step Sll: initialization and establish a wireless infrastructure and a wireless direct drive of the control channel.

[0047]无线AP/STA启动后,首先完成无线基础驱动相关的各种标准初始化工作;直接控制通道完成私有参数和接口初始化,特别需要激活AP/STA端无线调整事务服务单元、高精度时间服务单元和WIFI时间服务单元。 After [0047] Wireless AP / STA starts, the first to complete the wireless base driver initialization related standards; direct private control channels is completed and the interface initialization parameters, in particular the need to activate AP / STA of the wireless transaction service unit adjustment, high-precision time service WIFI time unit and service unit.

[0048]步骤S12:无线区域高精度时间服务的建立。 [0048] Step S12: establishing a wireless service area precision time.

[0049]高精度时间服务单元激活后,按顺序完成如下操作,为AP/STA提供时间校准服务,其具体步骤如下: [0049] The high-accuracy time after activating the service unit, the following operations are sequentially provide services for time alignment AP / STA, the specific steps are as follows:

[0050] AP端通过本地时间源获取实时时间或开机时间作为本无线区域授时采用的相对时间标准; [0050] AP obtain real time or end time by the local power source as a time relative timing of the present time using standard radio zone;

[0051 ] AP周期性(如3600秒)通过扩展的心跳(Beacon)包向所有STA广播进行授时; [0051] AP periodically (such as 3600 seconds) by extending heartbeats (the Beacon) packets to all the STA broadcasts timing;

[0052] STA监听到授时命令和时间后,校准本地的相对时间,并通过扩展无线发送缓冲中待发送的无线包传回授时结果,如果无线发送缓冲中为空,则主动构建一空无线引导包发送; After the [0052] STA listens to the timing command and time, calibration local relative time, and by extending a wireless packet radio transmission buffer to be transmitted pass feedback when a result, if the wireless transmission buffer is empty, the active construct an empty radio guidance package send;

[0053] AP接收STA发回的授时结果,计算无线延迟,参考当前无线通讯流量判定授时是否有效;如果某STA授时时间过长,则在无线包超时范围内多次授时;如发现仍有STA不能通过授时,则通过AP外部API (外部接口)发出警告; [0053] Timing results received by the AP STA sends back, calculating the wireless delay, the current wireless communication traffic is determined whether a valid timing reference; when if a STA feedback time is too long, then repeatedly granted in the radio packet timeout range; found still STA It can not be granted when the warning is issued by the AP an external API (the external interface);

[0054] STA通过授时且为首次,启动内部的定时器服务。 [0054] STA through the grant and for the first time, an internal timer is started service.

[0055]上述步骤S2中,周期性的进行无线环境分析、无线网络状况分析,并启动无线参数调整流程,具体如下: [0055] S2 periodically subjected to the above procedure of the radio environment analysis, analysis of the wireless network status, and start radio parameter adjustment procedure, as follows:

[0056]根据WIFI时间服务单元的调度,通过无线直接控制通道,无线参数收集服务单元会不断收集无线参数调整相关的各项内容。 [0056] The time schedule WIFI service unit, through direct control of the radio channel, the radio parameter collection service unit will continue to collect radio parameter adjustment related to the content. 主要包括:AP周边各无线信道出现的其他无线网络的数量及信号强度、AP周边其他无线网络宽无线频道(40Mhz)的分布情况、无线网络中各通过认证的STA的信道、频道宽度、无线突发模式、无线巨型包等的支持能力、和无线网络当前的网络流量。 Include: the number and signal strength of another wireless network AP appear around each radio channel, AP other neighboring wireless network bandwidth wireless channel (40Mhz) of the distribution channel in a wireless network STA each certified, channel width, wireless projecting shot mode, the wireless giant rolls and other support capabilities, and wireless network current network traffic.

[0057]收集到的信息会提供至无线调制事务服务单元,无线调制事务服务单元会据此启动或保持无线参数调整。 [0057] The collected information to the wireless modem provides the transaction service unit, a wireless modulation transaction service unit will accordingly start or maintain the wireless parameter adjustment. 特别在无线信道调整中,若当前无线信道出现拥塞,存在更优信道(主要参考信道中其他无线网络数量和其信号强度),则会启动调整信道至最优信道的操作。 In particular, adjustment in the radio channel, if the current radio channel congestion, more preferably present channel (channel other wireless networks mainly refer to the number and signal strength), the optimal operation of adjusting the channel to the channel will be launched.

[0058] 上述步骤S3中,因参数调整的整个过程中无线网络处于不断的通讯过程中,要求不对当前通讯造成影响,故所有STA和AP必须同步完成无线参数调整,主要通过高精度定时器完成。 [0058] In step S3, because the process of adjusting parameters of the wireless network is in constant communication process, it is required not to affect the current traffic, so all the STA and the AP must be synchronized radio parameter adjustment is completed, the main high-precision timer completes . 同时整个参数调整过程为事务处理,或者整体成功,或者自动回滚至原参数,保证无线通讯不受影响。 At the same time the entire parameter adjustment procedure for the transaction, or the overall success or automatically roll back to the original parameters, to ensure that wireless communications will not be affected.

[0059]无线参数广播、调整、验证的事务流程具体如下: [0059] The broadcast radio parameters to adjust, verify the transaction flow as follows:

[0000] AP通过Beacon包通知所有STA启动参数调整流程,并提供参数调整的描述(如信道调整,将调整至的最优信道数); [0000] AP notifies all packet through Beacon STA Start parameter adjustment process, and provides a description of the adjustment parameters (e.g., channel adjustment, the adjustment to the optimal channel);

[0061] STA上报自身参数相关的能力(如信道调整范围),特别提供保证能够进行参数调整的相对时间; [0061] STA reporting capabilities (e.g., channel adjustment range) to their associated parameters, in particular, can be provided to ensure the relative time of parameter adjustment;

[0062] AP验证STA的参数调整能力,同时取各STA上报可以完成操作的相对时间中的最大值,参考各STA的无线延迟,提出执行操作的相对时间; [0062] AP STA's authentication parameter adjustment capability, while the maximum value reported by each STA operation can be completed in a relative time reference radio delay each STA, is proposed to perform an operation relative time;

[0063] AP通过Beacon扩展包将本次参数调整的具体内容和执行操作的相对时间广播至所有STA; [0063] AP Beacon expansion pack through the current broadcast content and the specific parameter adjustment operations performed with respect to time to all the STA;

[0064] STA收到本次操作具体内容后,确认并通知AP;若确认失败,则向AP提交确认失败信息,及失败原因; [0064] STA after receiving the specific content of this operation, confirm and notify the AP; if validation fails, the failure information, and the reason for the failure to confirm the submission to the AP;

[0065] AP得到所有STA的确认信息后,通过广播启动本次操作;如果仍有STA确认失败,根据失败原因进行调整,或取消本次调整; After the [0065] AP STA to obtain the profile of all, this operation starts by broadcasting; validation fails if there STA, adjusted according to the cause of failure, or cancel the adjustment;

[0066] AP/STA收到启动本次操作信息后,设置定时器,在协商的执行时间通过无线直接控制通道完成本次操作;并提交成功信息; [0066] AP / STA receives this operation information after starting timer is set, the execution time of the negotiation to complete this operation directly controlled by the radio channel; success information and submit;

[0067] AP验证收到的成功信息,完成本次操作。 [0067] AP authentication success information received, to complete this operation.

[0068] 在上述步骤S3之后,进一步包括步骤S4:验证并完成参数调整事务处理。 [0068] After the above step S3, the further comprising the step S4: verify and the transaction is completed parameter adjustment.

[0069] AP在完成参数调整后,仍会通过收集STA无线引导的方式对参数调整的结果进行验证,如验证是否所有已知的STA都已正确调整至最优的信道。 [0069] AP after completion of the parameter adjustment, the result will be verified by collecting parameter adjustment guide mode wireless STA, such as STA verify that all known are correctly adjusted to the optimal channel. 如果验证成功,则结束本次参数调整的事务处理,并通知所有STA操作结束。 If authentication is successful, this parameter adjustment of the transaction is terminated, and notify all STA operation ends. 否则AP通知所有STA操作失败,AP和STA均在收到失败信息或超时后进行回滚操作,将无线参数重新设置成原值,并结束本次参数调整。 Otherwise inform all AP STA operation failed, the AP and STA are received rollback operation after a timeout or failure information, the radio parameter is reset to the original value, and ends the parameter adjustment.

[0070] 在上述的无线参数调整的过程中,AP/STA通讯通过心跳包实现,不会对正在进行的无线通讯造成影响和延迟;所有参数调整和验证均在有限个AP心跳包中完成,因Beacon包间隔一般为I OOms,为实现AP/STA同步协同操作,AP和STA建立了统一的高精度时间源,并定期校准;以高精度时间源为基础,建立统一定时器,所有参数调整事物,在AP/STA调度服务单元的控制下,预订时间启动,并在规定时间结束,提交执行结果;参数调整的结果,同样通过心跳包进行验证,不会产生任何额外流量。 [0070] In the above-described process of the radio parameter adjustment, AP / STA communications achieved by a heartbeat packet, and the delay will not affect the ongoing wireless communication; all parameter adjustment and verification are completed in a finite number of heartbeat packets AP, Beacon packet interval because generally I OOms, to achieve AP / STA synchronization cooperating, AP, and STA to establish a uniform high precision time source, and periodically calibrated; high precision time source, based on a unified timers, adjusting all parameters things, under the control of AP / STA scheduling service units, reservation start time and the end of a predetermined time, the execution result submitted; parameter adjustment results also verified by the heartbeat packet, no additional traffic.

[0071]综上所述,采用本发明的不间断通讯的无线信道选择方法,AP实时对网络环境进行监测,在不影响无线网络通讯的前提下,配合周围STA或AP的变化,调整自身的网络参数,始终使自身网络处于最优状态,可以很好解决现有技术中网络参数配置不能配合无线环境的变化、无线网络变化会造成长时间断网、无线资源被大量浪费等问题。 [0071] In summary, the present invention is an uninterruptible communication radio channel selection method, AP network environment in real time to monitor, without the influence of wireless communication network, with the change in the ambient STA or AP, adjusts its network parameters, always make their own network in an optimal state, can be solved prior art network configuration parameters can not cope with changes in the wireless environment, wireless network changes will result in a long time off the network, wireless resources are wasting a lot of other issues.

[0072]以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明,不能认定本发明的具体实施只局限于这些说明。 [0072] The above contents with the specific preferred embodiments of the present invention is further made to the detailed description, specific embodiments of the present invention should not be considered limited to these descriptions. 对于本发明所属技术领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干简单推演或替换,都应当视为属于本发明的保护范围。 Those of ordinary skill in the art for the present invention, without departing from the spirit of the present invention, can make various simple deduction or replacement, should be deemed to belong to the scope of the present invention.

Claims (8)

  1. 1.一种不间断通讯的无线信道选择方法,其用于完成对WIFI应用中AP和STA信道调整的方案,其特征在于包括, 步骤SI: AP/STA启动后,AP将向WiFi网络内与之连接验证的STA进行授时,建立无线区域内统一的高精度相对时间服务; 步骤S2:AP周期性的探测和分析周边无线环境特点,配合本地无线网络的流量统计结果,对相关无线参数进行调整; 步骤S3:AP启动无线参数广播、调整、验证的事务流程,STA配合AP,同步完成本地无线参数调整。 CLAIMS 1. A method of wireless channel selection uninterrupted communication for the completion of the application program AP and the STA WIFI channel adjustment, comprising the step SI: within the AP / STA starts, and WiFi network will AP when the connection verification of the STA grant, establishing a unified wireless area accurately relative time services; step S2: AP periodic detection and analysis of the characteristics of the surrounding radio environment, with a local wireless network traffic statistics, radio related parameters adjusted ; step S3: AP promoter broadcast radio parameters to adjust, verify the transaction process, the STA with the AP, a wireless local synchronization parameter adjustment is completed.
  2. 2.根据权利要求1所述的不间断通讯的无线信道选择方法,其特征在于,进一步包括步骤S4:验证并完成参数调整事务处理。 The radio channel selection method according to claim 1 uninterrupted communications, characterized by further comprising the step S4: verify and the transaction is completed parameter adjustment.
  3. 3.根据权利要求1所述的不间断通讯的无线信道选择方法,其特征在于,步骤SI进一步包括步骤SI 1:无线基础驱动及无线直接控制通道的初始化及建立; 步骤S12:无线区域高精度时间服务的建立。 The radio channel selection method according to claim 1 uninterrupted communication, wherein the step SI SI 1 further comprising the steps: initializing and establishing a wireless base driver direct control and radio channel; Step S12: precision wireless area setup time services.
  4. 4.根据权利要求3所述的不间断通讯的无线信道选择方法,其特征在于, 步骤S12进一步包括: AP端通过本地时间源获取实时时间或开机时间作为本无线区域授时采用的相对时间标准; AP周期性通过扩展的心跳包向所有STA广播进行授时; STA监听到授时命令和时间后,校准本地的相对时间,并传回授时结果; AP接收STA发回的授时结果,计算无线延迟,参考当前无线通讯流量判定授时是否有效;如果某STA授时时间过长,则在无线包超时范围内多次授时;如发现仍有STA不能通过授时,则通过AP外部API发出警告; STA通过授时且为首次,启动内部的定时器服务。 The radio channel selection method according to claim 3 uninterrupted communication, wherein the step S12 further comprises: AP acquires the source end of the real time by the local boot time or relative time as a time standard used in the present radio timing region; AP periodically by expanding the heartbeat packet to all the STA broadcasts timing; the STA listens to the timing command and time, calibration local relative time, and returns feedback results; time service result received by the AP STA sends back, calculating the wireless delay, the reference current wireless communications traffic is determined whether valid timing; when if a STA feedback time is too long, then repeatedly granted in the radio packet timeout range; found when there STA can not be granted, the warning is issued by the AP outside the API; STA by timing and led second, the internal timer is started service.
  5. 5.根据权利要求1所述的不间断通讯的无线信道选择方法,其特征在于,步骤S2中,AP周边无线环境特点包括:AP周边各无线信道出现的其他无线网络的数量及信号强度、AP周边其他无线网络宽无线频道的分布情况、无线网络中各通过认证的STA的信道、频道宽度、无线突发模式、无线巨型包的支持能力、和无线网络当前的网络流量。 The radio channel selection method according to claim 1 ongoing communication, wherein, in the step S2, the peripheral AP wireless environment features include: the number of other wireless networks outside the respective wireless channels occurring AP signal strength, AP other neighboring wireless networks wide distribution of radio channels, each radio network STA authenticated channel, the channel width, the radio burst mode, massive support capability of the wireless packet, the wireless network and current network traffic.
  6. 6.根据权利要求1所述的不间断通讯的无线信道选择方法,其特征在于, 无线参数广播、调整、验证的事务流程具体如下: AP通过心跳包通知所有STA启动参数调整流程,并提供参数调整的描述; STA上报自身参数相关的能力,特别提供保证能够进行参数调整的相对时间; AP验证STA的参数调整能力,同时取各STA上报可以完成操作的相对时间中的最大值,参考各STA的无线延迟,提出执行操作的相对时间; AP通过心跳包将本次参数调整的具体内容和执行操作的相对时间广播至所有STA; STA收到本次操作具体内容后,确认并通知AP;若确认失败,则向AP提交确认失败信息,及失败原因; AP得到所有STA的确认信息后,通过广播启动本次操作;如果仍有STA确认失败,根据失败原因进行调整,或取消本次调整; AP/STA收到启动本次操作信息后,设置定时器,在协商的执行时间 The radio channel selection method according to claim 1 uninterrupted communication, wherein the broadcast radio parameters to adjust, verify the transaction flow as follows: AP STA informs all the parameter adjustment process starts heartbeat packets and provides parameters described adjustment; STA parameters related to report its capabilities, in particular, can be provided to ensure the relative time parameter adjustment; AP verification parameter adjustment capability of the STA, while the maximum value reported by each STA operation can be completed in a relative time reference each STA radio delay, relative proposed action is performed; heartbeat packet to the AP by adjusting the parameters of this particular content and performs operations with respect to time is broadcast to all the STA; STA receives the specific content of this operation, confirm and notify the AP; if validation fails, then submitted to the AP determine the cause of failure information and the failure; the AP STA to obtain the profile of all, this operation starts by broadcasting; validation fails if there STA, adjusted according to the cause of failure, or cancel the adjustment; AP / STA information received after starting this operation, set the timer, the execution time of negotiation 过无线直接控制通道完成本次操作,并提交成功信息; AP验证收到的成功信息,完成本次操作。 Direct control over the wireless channel to complete this operation, and submit the success information; authentication success information received from the AP, to complete this operation.
  7. 7.根据权利要求6所述的不间断通讯的无线信道选择方法,其特征在于,所有参数调整和验证均在有限个AP心跳包中完成。 The radio channel selection method according to claim 6 ongoing communication, characterized in that the adjustment of all parameters and verification are completed in a finite number of AP heartbeat packets.
  8. 8.根据权利要求1所述的不间断通讯的无线信道选择方法,其特征在于,AP/STA通讯通过心跳包实现。 Radio channel selection method according to claim 1, said uninterruptible communication, wherein, AP / STA communication realized by the heartbeat packet.
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