WO2016107044A1 - 无线扩展网络控制接入方法及系统 - Google Patents

无线扩展网络控制接入方法及系统 Download PDF

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Publication number
WO2016107044A1
WO2016107044A1 PCT/CN2015/078714 CN2015078714W WO2016107044A1 WO 2016107044 A1 WO2016107044 A1 WO 2016107044A1 CN 2015078714 W CN2015078714 W CN 2015078714W WO 2016107044 A1 WO2016107044 A1 WO 2016107044A1
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network
wireless
network card
card
destination
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PCT/CN2015/078714
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English (en)
French (fr)
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黄秋钧
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北京极科极客科技有限公司
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Publication of WO2016107044A1 publication Critical patent/WO2016107044A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service

Definitions

  • the present invention belongs to the field of wireless communication technologies, and in particular, to a wireless extended network control access method and system.
  • the Wireless Extension Service Set (ESS) consists of multiple Basic Service Sets (BSS) of the same network name.
  • BSS Basic Service Sets
  • ESS When we use the network card, we can only see one network, that is, the ESS named after the common network name.
  • the BSS with the strongest signal is preferentially connected. However, the strongest BSS is not the best choice.
  • ESS consisting of 2.4G BSS and 5G BSS. Because 5G BSS has small interference and smooth communication, it can give priority to dual-frequency network cards. Access 5G BSS.
  • the distance between the wireless repeater and the wireless router is generally not very close, and the signal from the wireless repeater to the wireless router is generally not strong. If the network card is located between the wireless router and the wireless repeater close to the wireless repeater, and connected to the strongest network wireless repeater, resulting in the network card can directly communicate with the wireless router, but must first pass through the wireless Relay relay, and wireless repeater to wireless router communication is worse than the network card to the wireless router, further leading to the signal is full, the Internet experience is not ideal.
  • the network card connected to the wireless relay communicates with the external network through the wireless repeater and then to the wireless router, the two links are on the same channel, so the two steps are not performed at the same time, and each step must contend for the channel. Contrast directly to wireless The communication of the router increases the communication delay and increases the load of the wireless channel.
  • the wireless protocol does not specify how the NIC should choose a BSS connection when it is connected to the ESS. Therefore, the implementation in the current technology is the BSS with the strongest connection signal of the network card. In this way, although the user's network card will connect to the BSS with the strongest signal when connecting to the ESS, the BSS with the strongest signal is not guaranteed to be the best.
  • the technical problem to be solved by the present invention is how to control a network card to selectively access a certain BSS in a wireless extended service set network to improve the user's online experience.
  • the present invention provides a wireless extended network control access method, the method comprising:
  • Step S1 Obtaining wireless network card access capability information
  • Step S2 The wireless network card initiates a wireless connection request, and acquires the destination network according to the signal strength of the wireless network card to the wireless router and/or the wireless repeater;
  • Step S3 determining whether the wireless network card is connected to the destination network, and if the wireless network card is connected to the destination network, allowing the wireless network card to access the destination network.
  • the acquiring the wireless network card access capability information specifically includes:
  • the wireless network card sends a detection frame to the wireless router
  • the wireless router determines that the wireless network card is a dual-frequency network card, and acquires the destination network according to the signal strength of the two networks in the dual-frequency network card.
  • obtaining the destination network according to the signal strength of the two networks in the dual-frequency network card specifically includes:
  • the network threshold In the dual-frequency network card, if the first network is greater than the network threshold, obtain the first network as the destination network; if the first network is smaller than the network threshold and the second network is greater than the network threshold, obtain the second network. For the purpose of the network.
  • the acquiring the wireless network card access capability information specifically includes:
  • the wireless network card wireless router and the wireless repeater send detection frames
  • the wireless router and the wireless repeater receive the detection frame, and acquire the destination network according to the signal strength of the wireless network card to the wireless router and the wireless repeater.
  • the acquiring the destination network according to the signal strength of the wireless network card to the wireless router and the wireless repeater specifically includes:
  • the network of the wireless network card to the wireless repeater is obtained as the destination network.
  • the present invention also provides a wireless extended network control access system, including:
  • An obtaining unit configured to acquire wireless network card access capability information
  • a requesting unit configured to initiate a wireless connection request by the wireless network card, and acquire the destination network according to the signal strength of the wireless network card to the wireless router and/or the wireless repeater;
  • the access unit is configured to determine whether the wireless network card is connected to the destination network, and if the wireless network card is connected to the destination network, the wireless network card is allowed to access the destination network.
  • the acquiring unit specifically includes:
  • a first sending unit configured to enable the wireless network card to send a detection frame to the wireless router
  • the first determining unit is configured to: if the wireless router receives two detection frames, determine that the wireless network card is a dual-frequency network card, and obtain the destination network according to the signal strength of the two networks in the dual-frequency network card.
  • the first determining unit specifically includes:
  • the first setting unit is configured to set a network threshold.
  • the first network is greater than the network threshold, the first network is obtained as the destination network; if the first network is smaller than the network threshold and the second network is greater than the network valve When the value is obtained, the second network is acquired as the destination network.
  • the acquiring unit specifically includes:
  • a second sending unit configured to implement a wireless network card wireless router and a wireless repeater to send a detection frame
  • the comparing unit is configured to implement the wireless router and the wireless repeater to receive the detection frame, and acquire the destination network according to the signal strength of the wireless network card to the wireless router and the wireless repeater.
  • the comparing unit specifically includes:
  • a second setting unit configured to set a network threshold, and if it is determined that the signal strength of the wireless network card to the wireless router is greater than a network threshold, acquiring a network of the wireless network card to the wireless router as the destination network;
  • the network of the wireless network card to the wireless repeater is obtained as the destination network.
  • the control network card when an ESS is established, the control network card preferentially accesses a certain BSS, and when the NIC is connected, the BSS that selects the strongest signal is connected, and if If you don't, you will try to connect to other BSS. Select a destination BSS. If the network card is connected to the ESS, if the connection is not the destination BSS, the access is denied, and the network card will switch to another BSS; The card connection destination BSS allows access, thereby enabling the user to select the best wireless Internet access option in the ESS and improving the user's online experience.
  • FIG. 1 is a schematic flowchart of selecting a wireless network connection access by a wireless extension network in the prior art
  • FIG. 2 is a schematic flowchart of a method for controlling access of a wireless extended network according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic diagram of application scenario 1 of a wireless extended network control access method according to Embodiment 1 of the present invention.
  • FIG. 4 is a schematic diagram of application scenario 2 of a wireless extended network control access method according to Embodiment 1 of the present invention.
  • FIG. 5 is a schematic structural diagram of a wireless extended network control access system according to Embodiment 2 of the present invention.
  • the wireless protocol does not explicitly specify how to select a BSS connection when the network card is connected to the ESS.
  • the current implementation situation is that the network card has the strongest connection BSS.
  • the BSS with the strongest signal is preferentially connected. In some cases, it is not a good choice.
  • the control network card preferentially accesses a certain BSS, and uses the NIC behavior to select the BSS of the strongest signal to connect when connecting to the ESS, and if it fails to connect, it will try to connect with other BSS.
  • the dual-frequency network card can be selected to access the best network, the network transmission is smoother, and the Internet experience is better.
  • FIG. 2 is a schematic flowchart of a wireless extended network control access method according to Embodiment 1 of the present invention. As shown in FIG. 2, the method includes:
  • Step S1 Obtaining wireless network card access capability information
  • Step S2 The wireless network card initiates a wireless connection request, and acquires the destination network according to the signal strength of the wireless network card to the wireless router and/or the wireless repeater;
  • Step S3 determining whether the wireless network card is connected to the destination network, and if the wireless network card is connected to the destination network, allowing the wireless network card to access the destination network.
  • the wireless network BSS that selects the strongest signal is connected, and if it is not connected, it tries to connect to other wireless network BSS.
  • the acquiring the wireless network card access capability information comprises: the wireless network card sending the detection frame to the wireless router; if the wireless router receives the two detection frames, determining that the wireless network card is a dual-frequency network card, and according to the two-frequency network card The signal strength of the network acquires the destination network.
  • the acquiring the destination network according to the signal strength of the two networks in the dual-frequency network card comprises: setting a network threshold, where, in the dual-frequency network card, if the first network is greater than the network threshold, obtaining the first network as the destination network; When the network is smaller than the network threshold and the second network is greater than the network threshold, the second network is acquired as the destination network.
  • FIG. 3 is a schematic flowchart of application scenario 1 of a wireless extended network control access method according to Embodiment 1 of the present invention.
  • a detection frame is sent on each channel supported by the wireless network card ( Probe request frame).
  • the 2.4G network card is only transmitted on each channel of 2.4G.
  • the dual-frequency network card can be transmitted on each channel of the 2.4G network and the 5G network.
  • Each router constituting the ESS can obtain the signal strength of the wireless network card by receiving a probe request frame sent by the wireless network card.
  • the dual-band network card connects to the dual-band router and preferentially accesses the 5G network.
  • the 2.4G network (BSS) and the 5G network (BSS) of the dual-band router form a wireless extension network (ESS).
  • the router controls the network card to preferentially access the 5G network.
  • the execution steps specifically include:
  • the first step is to obtain information about the access capability of the network card.
  • the probe request frame is sent on each channel it supports (the 2.4G network card is only transmitted on each channel of 2.4G.
  • the dual-frequency network card can be sent on each channel of the 2.4G network and the 5G network.).
  • the router can obtain the signal strength of the wireless network card by receiving the probe request frame sent by the wireless network card.
  • the second step is to select the destination BSS to be preferentially accessed according to the type of the network card and the signal strength of the network card to the router. If the router can receive the probe request frame of the same network card on both the 2.4G network and the 5G network, it can be judged that the network card is a dual-frequency network card.
  • the 5G signal strength is strong, choose to preferentially access the 5G network; if the 5G signal strength is weak, the 2.4G signal strength is strong. Select the priority access to the 2.4G network; in other cases, you do not need to control the access behavior of the network card, you can arbitrarily choose to access; if the single-frequency network card, you can only access the 2.4G network, without controlling the access behavior of the network card.
  • the stronger here refers to being stronger than a threshold, and the weaker is weaker than a threshold.
  • the acquiring the wireless network card access capability information specifically includes: the wireless network card wireless router and the wireless repeater transmitting the detection frame; the wireless router and the wireless repeater receiving the detection frame, according to the signal of the wireless network card to the wireless router and the wireless repeater. Intensity acquisition network.
  • the acquiring the destination network according to the signal strength of the wireless network card to the wireless router and the wireless repeater specifically includes:
  • the network of the wireless network card to the wireless repeater is obtained as the destination network.
  • FIG. 4 is a schematic flowchart of application scenario 2 of a wireless extended network control access method according to Embodiment 1 of the present invention.
  • an ESS composed of a wireless repeater and a wireless router preferentially accesses a wireless router.
  • a Wireless Repeater Network (BSS) and a Wireless Router Network (BSS) form a Wireless Extension Network (ESS).
  • BSS Wireless Repeater Network
  • BSS Wireless Router Network
  • the execution steps specifically include:
  • the first step is to obtain information about the access capability of the network card.
  • the wireless network card sends a probe request, and the router and the repeater can obtain the signal strength of the wireless network card when receiving the wireless frame.
  • the signal strength information of the network card is exchanged between the router and the repeater.
  • the destination BSS with priority access is selected according to the signal strength of the network card.
  • the signal from the NIC to the router is strong, and the router is preferentially connected to the router;
  • the signal from the NIC to the router is weak, the signal from the NIC to the repeater is strong, and the repeater is preferentially accessed. In other cases, the access behavior of the NIC is not controlled. It should be noted that the stronger here refers to being stronger than a threshold, and the weaker is weaker than a threshold.
  • the quality of the wireless connection is improved by connecting the user's network card to the ESS network and connecting a best BSS.
  • the user's network card would connect to the BSS with the strongest signal when connecting to the ESS, and the BSS with the strongest signal would not guarantee the best.
  • the invention can select the best wireless internet selection for the user in the ESS.
  • the present invention also provides a wireless extended service set control access system.
  • the system includes: an acquiring unit. 501.
  • the obtaining unit 501 is configured to obtain the wireless network card access capability information
  • the requesting unit 502 is configured to use the wireless network card to initiate a wireless connection request, and acquire the destination network according to the signal strength of the wireless network card to the wireless router and/or the wireless repeater
  • the unit 503 is configured to determine whether the wireless network card is connected to the destination network, and if the wireless network card is connected to the destination network, the wireless network card is allowed to access the destination network.
  • the obtaining unit 501 specifically includes: a first sending unit 5011, configured to enable the wireless network card to send a detection frame to the wireless router; and a first determining unit 5012, configured to determine, if the wireless router receives two types of detection frames, the wireless network card It is a dual-frequency network card and acquires the destination network according to the signal strength of the two networks in the dual-frequency network card.
  • the first determining unit 5012 specifically includes: a first setting unit 50121, configured to set a network threshold, in the dual-frequency network card, if the first network is greater than the network threshold, acquiring the first network as the destination network; When the network is smaller than the network threshold and the second network is greater than the network threshold, the second network is acquired as the destination network.
  • a first setting unit 50121 configured to set a network threshold, in the dual-frequency network card, if the first network is greater than the network threshold, acquiring the first network as the destination network; When the network is smaller than the network threshold and the second network is greater than the network threshold, the second network is acquired as the destination network.
  • the obtaining unit 501 specifically includes: a second sending unit 5013, configured to implement a wireless network card wireless router and a wireless repeater to send a detection frame; and a comparing unit 5014, configured to receive the detection frame by the wireless router and the wireless repeater, according to the wireless The signal strength of the NIC to the wireless router and the wireless repeater acquires the destination network.
  • a second sending unit 5013 configured to implement a wireless network card wireless router and a wireless repeater to send a detection frame
  • a comparing unit 5014 configured to receive the detection frame by the wireless router and the wireless repeater, according to the wireless The signal strength of the NIC to the wireless router and the wireless repeater acquires the destination network.
  • the comparing unit 2014 specifically includes:
  • the second setting unit 50141 is configured to set a network threshold, and if it is determined that the signal strength of the wireless network card to the wireless router is greater than a network threshold, acquiring a network of the wireless network card to the wireless router as the destination network;
  • the network of the wireless network card to the wireless repeater is acquired as the destination network.
  • the control network card when an ESS is set up, preferentially accesses a certain BSS, and when the NIC is connected, the BSS of the strongest signal is selected for connection when the ESS is connected, and if it is not connected, an attempt is made. Connect with other BSS. Select a destination BSS. When the network card is connected to the ESS, if the connection is not the destination BSS, the access is denied, and the network card is connected to another BSS. If the network card is connected to the destination BSS, the access is allowed, and the dual-band ESS network can be implemented.
  • the dual-frequency network card is controlled to preferentially access the 5G network; the extended network composed of the wireless router and the wireless repeater controls the network card to preferentially access the wireless router network. Therefore, it is possible to select the best wireless Internet access option for the user in the ESS, and improve the user's online experience.

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Abstract

本发明提供了一种无线扩展网络控制接入方法及系统，属于无线通信技术领域。该方法包括：步骤S1、获取无线网卡接入能力信息；步骤S2、无线网卡发起无线连接请求，根据无线网卡到无线路由器和/或无线中继器的信号强度，获取目的网络；步骤S3、判断无线网卡是否连接到目的网络，若无线网卡连接到目的网络时，则允许无线网卡接入所述目的网络。本发明的技术方案可以实现在双频ESS网络中，控制双频网卡优先接入5G网络；由无线路由器和无线中继器组成的扩展网络，控制网卡优先接入无线路由器网络。在ESS中为用户选择最好的无线上网选择，提升用户上网体验。

Description

无线扩展网络控制接入方法及系统 技术领域
本发明属于无线通信技术领域，具体涉及一种无线扩展网络控制接入方法及系统。
背景技术
无线扩展服务集(ESS)由多个相同网络名称的基本服务集(BSS)构成。我们使用网卡时只能看到一个网络，即以共同的网络名称命名的ESS。通常，网卡连接这个ESS时，会优先连接信号最强的一个BSS。但信号最强的BSS并不是最好的选择，很多情况下我们可以做很多的优化，比如由2.4G BSS和5G BSS组成的ESS，因为5G BSS干扰小，通信流畅，可以让双频网卡优先接入5G BSS。
为了达到扩展网络的效果，无线中继器到无线路由器的距离一般不会很近，无线中继器到无线路由器的信号一般不会很强。如果网卡位于无线路由器与无线中继器之间靠近无线中继器，而连上了信号最强的网络无线中继器，从而导致出现网卡本可直接与无线路由器通信，却要先经无线中继器中转，而无线中继器到无线路由器的通信要比网卡到无线路由器差的情况，进一步导致出现信号满满的，上网体验却不理想的情况。由于连上无线中继的网卡与外网通信时需经过无线中继器中转，再到无线路由器，这两链路在同一信道，所以两步不是同时进行的，且每步都要竞争信道。对比直接连无线 路由器的通信，既增加了通信时延又增加了无线信道的负载。
无线协议中并无明确规定网卡在连ESS时，应该怎样选择一个BSS连接。因此，现在技术中的实现情况是网卡优先连接信号最强的BSS。这种方式中，虽然用户的网卡在连接ESS时会连接信号最强的BSS，但信号最强的BSS并不能保证是最好的。
发明内容
针对现有技术的上述缺陷，本发明所要解决的技术问题是如何实现在无线扩展服务集网络中控制网卡选择性地优先接入某个BSS，提升用户上网体验。
为实现上述目的，一方面，本发明提供一种无线扩展网络控制接入方法，该方法包括：
步骤S1、获取无线网卡接入能力信息；
步骤S2、无线网卡发起无线连接请求，根据无线网卡到无线路由器和/或无线中继器的信号强度，获取目的网络；
步骤S3、判断无线网卡是否连接到目的网络，若无线网卡连接到目的网络时，则允许无线网卡接入所述目的网络。
优选地，获取无线网卡接入能力信息具体包括：
无线网卡向无线路由器发送检测帧；
若无线路由器接收到两种检测帧，则判断出无线网卡为双频网卡，并根据双频网卡中两种网络的信号强度获取目的网络。
优选地，根据双频网卡中两种网络的信号强度获取目的网络具体包括：
设置网络阈值，在双频网卡中，若第一网络大于网络阀值时，获取第一网络为目的网络；若第一网络小于网络阀值且第二网络大于网络阀值时，获取第二网络为目的网络。
优选地，获取无线网卡接入能力信息具体包括：
无线网卡无线路由器和无线中继器发送检测帧；
无线路由器和无线中继器接收检测帧，根据无线网卡到无线路由器和无线中继器的信号强度获取目的网络。
优选地，所述根据无线网卡到无线路由器和无线中继器的信号强度获取目的网络具体包括：
设置网络阈值，若判断出无线网卡到无线路由器的信号强度大于网络阈值，则获取无线网卡到无线路由器的网络作为目的网络；
若判断出无线网卡到无线路由器的信号强度小于网络阈值且无线网卡到无线中继器的信号强度大于网络阈值，则获取无线网卡到无线中继器的网络作为目的网络。
另一方面，本发明还同时提供一种无线扩展网络控制接入系统，包括：
获取单元，用于获取无线网卡接入能力信息；
请求单元，用于无线网卡发起无线连接请求，根据无线网卡到无线路由器和/或无线中继器的信号强度，获取目的网络；
接入单元，用于判断无线网卡是否连接到目的网络，若无线网卡连接到目的网络时，则允许无线网卡接入所述目的网络。
优选地，所述获取单元具体包括：
第一发送单元，用于实现无线网卡向无线路由器发送检测帧；
第一判断单元，用于若无线路由器接收到两种检测帧，则判断出无线网卡为双频网卡，并根据双频网卡中两种网络的信号强度获取目的网络。
优选地，所述第一判断单元具体包括：
第一设置单元，用于设置网络阈值，在双频网卡中，若第一网络大于网络阀值时，获取第一网络为目的网络；若第一网络小于网络阀值且第二网络大于网络阀值时，获取第二网络为目的网络。
优选地，所述获取单元具体包括：
第二发送单元，用于实现无线网卡无线路由器和无线中继器发送检测帧；
比较单元，用于实现无线路由器和无线中继器接收检测帧，根据无线网卡到无线路由器和无线中继器的信号强度获取目的网络。
优选地，所述比较单元具体包括：
第二设置单元，用于设置网络阈值，若判断出无线网卡到无线路由器的信号强度大于网络阈值，则获取无线网卡到无线路由器的网络作为目的网络；
若判断出无线网卡到无线路由器的信号强度小于网络阈值且无线网卡到无线中继器的信号强度大于网络阈值，则获取无线网卡到无线中继器的网络作为目的网络。
本发明提供的无线扩展服务集控制接入方法及系统中，通过组建一个ESS时，控制网卡优先接入某个BSS，利用网卡行为在连接ESS时，选最强信号的BSS进行连接，若连不上会尝试连其它BSS。选出一个目的BSS，网卡连接ESS时，若连接的不是目的BSS，就拒绝接入，网卡会转而连接另外的BSS；若网 卡连接目的BSS，则允许接入，从而能够实现在ESS中为用户选择最好的无线上网选择，提升用户上网体验。
附图说明
图1为现有技术中的无线扩展网络选择无线网络连接接入的流程示意图；
图2为本发明实施例一提供无线扩展网络控制接入方法的流程示意图；
图3为本发明实施例一中的无线扩展网络控制接入方法的应用场景一的示意图；
图4为本发明实施例一提供无线扩展网络控制接入方法的应用场景二的示意图；
图5为本发明实施例二提供的无线扩展网络控制接入系统的结构示意图。
具体实施方式
为使本领域技术人员更好地理解本发明的技术方案，下面结合附图和具体实施方式对本发明作进一步详细描述。
现有技术中，无线协议中并无明确规定网卡在连ESS时，应该怎样选择一个BSS连接，现在的实现情况是网卡优先连接信号最强的BSS。网卡连接一个ESS时，优先连接信号最强的BSS。在一些情况下，不是一个好的选择。本发明通过组建一个无限扩展网络ESS时，控制网卡优先接入某个BSS，利用网卡行为在连接ESS时，选最强信号的BSS进行连接，若连不上会尝试连其它BSS， 同时可以让双频网卡选择接入最好的网络，网络传输更流畅，上网体验更好。
图2为本发明实施例一提供的无线扩展网络控制接入方法的流程示意图，如图2所示，该方法包括：
步骤S1、获取无线网卡接入能力信息；
步骤S2、无线网卡发起无线连接请求，根据无线网卡到无线路由器和/或无线中继器的信号强度，获取目的网络；
步骤S3、判断无线网卡是否连接到目的网络，若无线网卡连接到目的网络时，则允许无线网卡接入所述目的网络。
具体地，在连接无线拓展网络ESS时，选最强信号的无线网络BSS进行连接，若连不上会尝试连其它无线网络BSS。
优选地，获取无线网卡接入能力信息具体包括：无线网卡向无线路由器发送检测帧；若无线路由器接收到两种检测帧，则判断出无线网卡为双频网卡，并根据双频网卡中两种网络的信号强度获取目的网络。
优选地，根据双频网卡中两种网络的信号强度获取目的网络具体包括：设置网络阈值，在双频网卡中，若第一网络大于网络阀值时，获取第一网络为目的网络；若第一网络小于网络阀值且第二网络大于网络阀值时，获取第二网络为目的网络。
图3为本发明实施例一中的无线扩展网络控制接入方法的应用场景一的流程示意图，如图3所示，具体地，无线网卡工作时，在其支持的各信道上发送检测帧(probe request帧)。其中，2.4G网卡只在2.4G的各信道发送。双频网卡能在2.4G网络和5G网络的各信道发送。组成ESS的各路由器，通过接收无线网卡发送的probe request帧，能够得到无线网卡的信号强度。 双频网卡连接双频路由器，优先接入5G网络。双频路由器的2.4G网络(BSS)与5G网络(BSS)组成无线扩展网络(ESS)，双频网卡连接这个网络时，路由器控制网卡优先接入5G网络。执行步骤具体包括：
第一步、获取网卡接入能力信息。无线网卡工作时，在其支持的各信道上发送probe request帧(2.4G网卡只在2.4G的各信道发送。双频网卡能在2.4G网络和5G网络的各信道发送。)。路由器通过接收无线网卡发送的probe request帧，能够得到无线网卡的信号强度。
第二步、根据网卡的类型和网卡到路由器的信号强度选择应优先接入的目的BSS。若路由器在2.4G网络和5G网络都能收到同一块网卡的probe request帧，则可以判断这个网卡为双频网卡。
若为双频网卡，若5G信号强度较强，选择优先接入5G网络；若5G信号强度较弱，2.4G信号强度较强。选择优先接入2.4G网络；其它情况，不用控制网卡的接入行为，可以任意选择接入；若单频网卡，只可能接入2.4G网络，不用控制网卡的接入行为。需要说明的是，这里的较强是指强于一个门限值，较弱是弱于一个门限值。
优选地，获取无线网卡接入能力信息具体包括：无线网卡无线路由器和无线中继器发送检测帧；无线路由器和无线中继器接收检测帧，根据无线网卡到无线路由器和无线中继器的信号强度获取目的网络。
优选地，根据无线网卡到无线路由器和无线中继器的信号强度获取目的网络具体包括：
设置阈值，若判断出无线网卡到无线路由器的信号强度大于网络阈值，则获取无线网卡到无线路由器的网络作为目的网络；
若判断出无线网卡到无线路由器的信号强度小于网络阈值且无线网卡到无线中继器的信号强度大于网络阈值，则获取无线网卡到无线中继器的网络作为目的网络。
图4为本发明实施例一提供无线扩展网络控制接入方法的应用场景二的流程示意图，如图4所示，具体地，无线中继器与无线路由器组成的ESS中，优先接入无线路由器。无线中继器网络(BSS)与无线路由器网络(BSS)组成无线扩展网络(ESS)。网卡连接这个ESS时，优先接入无线路由器网络。执行步骤具体包括：
第一步、获取网卡接入能力信息。
无线网卡发probe request，路由器与中继器收到这个无线帧时，能得到无线网卡的信号强度。路由器与中继器之间交换网卡的信号强度信息。
第二步、根据网卡的信号强度选择优先接入的目的BSS。
网卡到路由器的信号较强，优先接入路由器；
网卡到路由器的信号较弱，网卡到中继器的信号较强，优先接入中继器，其它情况则不控制网卡的接入行为。需要说明的是，这里的较强是指强于一个门限值，较弱是弱于一个门限值。
本发明提供的无限扩展服务集控制接入方法中，通过将用户的网卡在ESS网络中，连接一个最好的BSS，提高无线连接的质量。如果没有本发明，用户的网卡在连接ESS时会连接信号最强的BSS，而信号最强的BSS并不能保证是最好的。本发明能够在ESS中为用户选择最好的无线上网选择。
本领域技术人员应理解，与本发明的方法一一对应的，本发明还同时提供一种无线扩展服务集控制接入系统，如图5所示，该系统包括：获取单元 501、请求单元502和接入单元503。其中，获取单元501用于获取无线网卡接入能力信息；请求单元502用于无线网卡发起无线连接请求，根据无线网卡到无线路由器和/或无线中继器的信号强度，获取目的网络；接入单元503用于判断无线网卡是否连接到目的网络，若无线网卡连接到目的网络时，则允许无线网卡接入所述目的网络。
优选地，获取单元501具体包括：第一发送单元5011，用于实现无线网卡向无线路由器发送检测帧；第一判断单元5012，用于若无线路由器接收到两种检测帧，则判断出无线网卡为双频网卡，并根据双频网卡中两种网络的信号强度获取目的网络。
优选地，第一判断单元5012具体包括：第一设置单元50121，用于设置网络阈值，在双频网卡中，若第一网络大于网络阀值时，获取第一网络为目的网络；若第一网络小于网络阀值且第二网络大于网络阀值时，获取第二网络为目的网络。
优选地，获取单元501具体包括：第二发送单元5013，用于实现无线网卡无线路由器和无线中继器发送检测帧；比较单元5014，用于无线路由器和无线中继器接收检测帧，根据无线网卡到无线路由器和无线中继器的信号强度获取目的网络。
优选地，比较单元2014具体包括：
第二设置单元50141，用于设置网络阈值，若判断出无线网卡到无线路由器的信号强度大于网络阈值，则获取无线网卡到无线路由器的网络作为目的网络；
若判断出无线网卡到无线路由器的信号强度小于网络阈值且无线网卡 到无线中继器的信号强度大于网络阈值，则获取无线网卡到无线中继器的网络作为目的网络。
本发明提供的无线扩展网络接入系统中，通过组建一个ESS时，控制网卡优先接入某个BSS，利用网卡行为在连接ESS时，选最强信号的BSS进行连接，若连不上会尝试连其它BSS。选出一个目的BSS，网卡连接ESS时，若连接的不是目的BSS，就拒绝接入，网卡会转而连接另外的BSS；若网卡连接目的BSS，则允许接入，可以实现双频ESS网络，控制双频网卡优先接入5G网络；由无线路由器和无线中继器组成的扩展网络，控制网卡优先接入无线路由器网络。从而能够实现在ESS中为用户选择最好的无线上网选择，提升用户上网体验。
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本发明的保护范围。

Claims (10)

  1. 一种无线扩展网络控制接入方法，其特征在于，包括：
    步骤S1、获取无线网卡接入能力信息；
    步骤S2、无线网卡发起无线连接请求，根据无线网卡到无线路由器和/或无线中继器的信号强度，获取目的网络；
    步骤S3、判断无线网卡是否连接到目的网络，若无线网卡连接到目的网络时，则允许无线网卡接入所述目的网络。
  2. 根据权利要求1所述的无线扩展网络控制接入方法，其特征在于，获取无线网卡接入能力信息具体包括：
    无线网卡向无线路由器发送检测帧；
    若无线路由器接收到两种检测帧，则判断出无线网卡为双频网卡，并根据双频网卡中两种网络的信号强度获取目的网络。
  3. 根据权利要求2所述的无线扩展网络控制接入方法，其特征在于，所述根据双频网卡中两种网络的信号强度获取目的网络具体包括：
    设置网络阈值，在双频网卡中，若第一网络大于网络阀值时，获取第一网络为目的网络；若第一网络小于网络阀值且第二网络大于网络阀值时，获取第二网络为目的网络。
  4. 根据权利要求1所述的无线扩展网络控制接入方法，其特征在于， 所述获取无线网卡接入能力信息具体包括：
    无线网卡无线路由器和无线中继器发送检测帧；
    无线路由器和无线中继器接收检测帧，根据无线网卡到无线路由器和无线中继器的信号强度获取目的网络。
  5. 根据权利要求4所述的无线扩展网络控制接入方法，其特征在于，所述根据无线网卡到无线路由器和无线中继器的信号强度获取目的网络具体包括：
    设置网络阈值，若判断出无线网卡到无线路由器的信号强度大于网络阈值，则获取无线网卡到无线路由器的网络作为目的网络；
    若判断出无线网卡到无线路由器的信号小于网络阈值且无线网卡到无线中继器的信号强度大于网络阈值，则获取无线网卡到无线中继器的网络作为目的网络。
  6. 一种无线扩展网络控制接入系统，其特征在于，包括：
    获取单元，用于获取无线网卡接入能力信息；
    请求单元，用于无线网卡发起无线连接请求，根据无线网卡到无线路由器和/或无线中继器的信号强度，获取目的网络；
    接入单元，用于判断无线网卡是否连接到目的网络，若无线网卡连接到目的网络时，则允许无线网卡接入所述目的网络。
  7. 根据权利要求6所述的无线扩展网络控制接入系统，其特征在于， 所述获取单元具体包括：
    第一发送单元，用于实现无线网卡向无线路由器发送检测帧；
    第一判断单元，用于若无线路由器接收到两种检测帧，则判断出无线网卡为双频网卡，并根据双频网卡中两种网络的信号强度获取目的网络。
  8. 根据权利要求7所述的无线扩展网络控制接入系统，其特征在于，所述第一判断单元具体包括：
    第一设置单元，用于设置网络阈值，在双频网卡中，若第一网络大于网络阀值时，获取第一网络为目的网络；若第一网络小于网络阀值且第二网络大于网络阀值时，获取第二网络为目的网络。
  9. 根据权利要求6所述的无线扩展网络控制接入系统，其特征在于，所述获取单元具体包括：
    第二发送单元，用于实现无线网卡无线路由器和无线中继器发送检测帧；
    比较单元，用于无线路由器和无线中继器接收检测帧，根据无线网卡到无线路由器和无线中继器的信号强度获取目的网络。
  10. 根据权利要求9所述的无线扩展网络控制接入系统，其特征在于，所述比较单元具体包括：
    第二设置单元，用于设置网络阈值，若判断出无线网卡到无线路由器的信号强度大于网络阈值，则获取无线网卡到无线路由器的网络作为目的网 络；
    若判断出无线网卡到无线路由器的信号强度小于网络阈值且无线网卡到无线中继器的信号强度大于网络阈值，则获取无线网卡到无线中继器的网络作为目的网络。
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