WO2017157016A1 - 无线接入的方法 - Google Patents

无线接入的方法 Download PDF

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Publication number
WO2017157016A1
WO2017157016A1 PCT/CN2016/103898 CN2016103898W WO2017157016A1 WO 2017157016 A1 WO2017157016 A1 WO 2017157016A1 CN 2016103898 W CN2016103898 W CN 2016103898W WO 2017157016 A1 WO2017157016 A1 WO 2017157016A1
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WO
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Prior art keywords
access point
wireless access
priority
wireless
mobile terminal
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PCT/CN2016/103898
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English (en)
French (fr)
Inventor
王斌
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上海斐讯数据通信技术有限公司
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Publication of WO2017157016A1 publication Critical patent/WO2017157016A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point

Definitions

  • the present invention relates to a method of network access, and more particularly to a method of wireless access.
  • a wireless access point is the most commonly used device for building a small wireless LAN. It is equivalent to a bridge connecting a wired network and a wireless network. Its main function is to connect the wireless network clients together and then connect the wireless network to the Ethernet.
  • Wireless access points are often used in places that require a wide range of wireless coverage, such as large shopping malls, companies, hospitals, etc.
  • the coverage of a wireless access point is only about 30 meters to 100 meters, so multiple wireless access points are often networked to form a local area network supporting an SSID (Service Set Identifier) to increase its coverage.
  • SSID Service Set Identifier
  • the mobile terminal when the mobile terminal needs to access the local area network, it listens to the BEACON frame (beacon frame) or sends a Probe frame (probe frame) to the wireless access point. After the authentication, the signal is selected in the AP supporting the same SSID. The strongest connection. Similarly, when the mobile terminal is moving from one area to another, the mobile terminal is also the wireless access point with the strongest selection signal to implement roaming.
  • this way of selecting access to the wireless access point may result in congestion of a large number of mobile terminals connecting a plurality of mobile terminals, and some of the wireless access points are idle, thereby causing a certain waste of resources.
  • the technical problem to be solved by the present invention is: in a network system in which multiple wireless access points support one service set identifier, the mobile terminal selects a wireless access point according to the signal strength to establish a connection, so that some wireless access points are overcrowded and partially The access point is idle, resulting in unreasonable use of resources.
  • the present invention provides a method for wireless access, which is used to control at least one mobile terminal to access at least one wireless access point by using a wireless controller, where the method for wireless access includes:
  • the wireless access point sends a priority query request to the wireless controller
  • the wireless controller Receiving, by the wireless controller, the priority query request, generating a priority identifier, and transmitting a priority identifier to the wireless access point, where the priority identifier is used to indicate that the wireless access point is moved by the wireless access point Priority of terminal access;
  • the mobile terminal receives the priority identifier, and selects a wireless access point to establish a connection according to the priority identifier.
  • the step of generating a priority identifier comprises:
  • the wireless controller calculates a priority of the wireless access point according to a load of the wireless access point, and generates a priority identifier.
  • the wireless access point sends the priority identifier to the mobile terminal in the wireless coverage of the wireless access point, including:
  • the wireless access point adds the priority identifier to the access information, where the access information includes a beacon frame and/or a probe response frame;
  • the wireless access point transmits the access information to the mobile terminal.
  • the invention also provides a wireless access network system, comprising a mobile terminal, a wireless controller and at least one wireless access point,
  • the wireless access point is configured to send a priority query request to the wireless controller, receive a priority identifier sent by the wireless controller, and send the priority identifier to the wireless access point wireless The mobile terminal within coverage;
  • the wireless controller is configured to receive a priority query request sent by the wireless access point, generate a priority identifier, and send a priority identifier to the wireless access point, where the priority identifier is used to indicate Determining a priority of the access point of the wireless access point by the mobile terminal;
  • the mobile terminal is configured to receive the priority identifier sent by the wireless access point, and select one of the wireless access points to establish a connection according to the priority identifier.
  • the present invention also provides a method for a wireless access point to send priority information to a mobile terminal, including:
  • a priority identifier is used to indicate a priority of the wireless access point being accessed by the mobile terminal
  • the invention also provides a wireless access point, comprising:
  • An access point sending module configured to send a priority query request to the wireless controller, and send a priority identifier to the mobile terminal, where the priority identifier is used to indicate a priority of the wireless access point being accessed by the mobile terminal ;
  • the access point receiving module is configured to receive a priority identifier sent by the wireless controller.
  • the present invention also provides a method for a wireless controller to send priority information to a wireless access point, including:
  • the invention also provides a wireless controller, comprising:
  • a controller receiving module configured to receive a priority query request sent by the wireless access point
  • a controller sending module configured to send a priority identifier to the wireless access point, where the priority identifier is used to indicate a priority of the wireless access point being accessed by the mobile terminal.
  • the present invention also provides a method for a mobile terminal to access a wireless access point
  • the invention also provides a mobile terminal
  • a terminal receiving module configured to receive a priority identifier sent by the wireless access, where the priority identifier is used to indicate a priority of the wireless access point being accessed by the mobile terminal;
  • the access module establishes a connection with the highest priority wireless access point.
  • the present invention calculates the priority of the wireless access point by the wireless access controller to generate a priority identifier, and then sends the priority identifier to the mobile terminal through the wireless access point, and the mobile terminal selects the priority according to the received priority identifier.
  • the most powerful wireless access point to establish a connection, realizing a fast mobile terminal Choosing the right wireless access point improves the user experience and the resources are effectively utilized.
  • FIG. 1 is a schematic diagram of a method for wireless access according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a network system for wireless access according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic diagram of a method for a wireless access point to send priority information to a mobile terminal according to Embodiment 3 of the present invention
  • FIG. 4 is a schematic diagram of a wireless access point according to Embodiment 4 of the present invention.
  • FIG. 5 is a schematic diagram of a method for a wireless controller to send priority information to a wireless access point according to Embodiment 5 of the present invention
  • FIG. 6 is a schematic diagram of a wireless controller according to Embodiment 6 of the present invention.
  • FIG. 7 is a schematic diagram of a method for a mobile terminal to access a wireless access point according to Embodiment 7 of the present invention.
  • FIG. 8 is a schematic diagram of a mobile terminal according to Embodiment 8 of the present invention.
  • the first embodiment of the present invention is a method for wireless access, which is used to control at least one mobile terminal to access at least one wireless access point by using a wireless controller, as shown in FIG.
  • the wireless access point sends a priority query request to the wireless controller.
  • the wireless controller receives the priority query request, generates a priority identifier, and sends the priority identifier to the wireless access point, where the priority identifier is used to indicate a priority of the wireless access point being accessed by the mobile terminal.
  • the wireless access point receives the priority identifier, and sends the priority identifier to the mobile terminal in the wireless coverage of the wireless access point.
  • the mobile terminal receives the priority identifier, and selects a wireless access point to establish a connection according to the priority identifier.
  • the radio access controller calculates the priority of the wireless access point to generate a priority identifier, and then sends the priority identifier to the mobile terminal through the wireless access point, and the mobile terminal identifies the received priority according to the priority.
  • the mobile terminal can quickly select a suitable wireless access point, improve the user experience, and the resources are also effectively utilized.
  • the wireless access point may periodically send a priority query request to the wireless controller, or the wireless access point may send a priority query request to the wireless controller upon receiving the probe frame (Probe frame) of the mobile terminal.
  • the wireless access point sends a priority inquiry request to the wireless controller before transmitting the beacon frame and the probe response frame.
  • the priority query request includes a wireless access point identifier and load information, and the load information includes one of a CPU usage of the wireless access point, a mobile terminal access number of the wireless access point, and a traffic of the wireless access point. Multiple.
  • the wireless controller receives the priority query request sent by the wireless access point, and obtains parameters included in the priority query request, such as the wireless access point identifier and the CPU usage of the wireless access point, and the mobile terminal of the wireless access point. Enter one or more of the number and traffic of the wireless access point and store the parameters.
  • the wireless controller calculates the priority of the wireless access point according to the parameters of each stored wireless access point, and generates a priority identifier, which may be a priority for calculating a wireless access point for sending a priority query request.
  • the level may also be a priority for calculating all wireless access points managed by the wireless controller.
  • the priority query request includes the load information of the wireless access point, so that the access controller can calculate the priority of the wireless access point according to the load information of the wireless access point, thereby avoiding the mobile terminal accessing the high-load wireless access.
  • the wireless access point After receiving the priority identifier, the wireless access point adds the priority identifier to the Vendor Specific IE of the beacon frame or probe response frame sent to the mobile terminal.
  • the use of the beacon frame or the probe response frame to transmit the priority identifier ensures that the mobile terminal knows the priority of the wireless access point before establishing a connection with the wireless access point, and can directly associate with the highest priority after establishing the association for the first time.
  • Wireless access point This method also avoids interaction with other modes of the protocol, reducing the occupation of wireless bandwidth by the interaction process. Moreover, it is also beneficial to simplify the management of the wireless access point by the wireless controller, and the management process is simple and clear.
  • the mobile terminal After the mobile terminal receives the beacon frame or the probe response frame, obtains the priority identifier therein, and The priority identifier is stored in the storage module to update the priority identification information.
  • the mobile terminal compares the priority identifiers of the wireless access points in the memory, and selects the wireless access point with the highest priority to establish a connection.
  • the second embodiment of the present invention is a wireless access network system, as shown in FIG. 2, including a mobile terminal 21, a wireless controller 22, and at least one wireless access point 23.
  • a wireless access point 23 configured to send a priority query request to the wireless controller 22, receive a priority identifier sent by the wireless controller 22, and send the priority identifier to the wireless access point 23 The mobile terminal 21 within the wireless coverage.
  • the wireless controller 22 is configured to receive a priority query request sent by the wireless access point 23, generate a priority identifier, and send a priority identifier to the wireless access point 23, where the priority identifier is used to indicate The priority of the wireless access point 23 being accessed by the mobile terminal 21.
  • the mobile terminal 21 is configured to receive the priority identifier sent by the wireless access point 23, and select one of the wireless access points 23 to establish a connection according to the priority identifier.
  • the present invention does not limit the number of mobile terminals 21, wireless access points 22, and wireless controllers 23.
  • the wireless controller 22 calculates the priority of the wireless access point 23 to generate a priority identifier, and then sends the priority identifier to the mobile terminal 21 through the wireless access point 23, and the mobile terminal 21 receives the received
  • the priority identifier is used to select the wireless access point 23 with the highest priority to establish a connection, so that the mobile terminal quickly selects a suitable wireless access point, improves the user experience, and the resources are also effectively utilized.
  • the wireless access point 23 may periodically send a priority inquiry request to the wireless controller 22, or the wireless access point 23 may send a priority inquiry request to the wireless controller 22 upon receiving the sounding frame of the mobile terminal 21. In order to ensure the timeliness of the priority, the wireless access point 23 sends a priority inquiry request to the wireless controller 22 each time before transmitting the beacon frame and the probe response frame.
  • the priority query request includes a wireless access point identifier and load information, and the load information includes one of a CPU usage of the wireless access point, a mobile terminal access number of the wireless access point, and a traffic of the wireless access point. Multiple.
  • the wireless controller 22 receives the priority query request sent by the wireless access point 23, and acquires parameters included in the priority query request, such as the wireless access point identifier and the CPU usage of the wireless access point, One or more of the number of mobile terminal accesses of the line access point and the traffic of the wireless access point, and storing parameters.
  • the wireless controller 22 calculates the priority of the wireless access point according to the parameters of the stored wireless access points 23, and generates a priority identifier, which may be a wireless access point for calculating a certain transmission priority query request.
  • the priority may also be to calculate the priority of all wireless access points managed by the wireless controller.
  • the priority query request includes the load information of the wireless access point, so that the access controller can calculate the priority of the wireless access point according to the load information of the wireless access point, thereby avoiding the mobile terminal accessing the high-load wireless access.
  • the wireless access point 23 After receiving the priority identifier, the wireless access point 23 adds the priority identifier to the Vendor Specific IE of the beacon frame or probe response frame transmitted to the mobile terminal 21. Sending the priority identifier by using the beacon frame or the probe response frame ensures that the mobile terminal 21 knows the priority of the wireless access point before the wireless access point establishes the connection, and can directly associate with the highest priority when establishing the association for the first time. Wireless access point. This method also avoids interaction with other modes of the protocol, reducing the occupation of wireless bandwidth by the interaction process. Moreover, it is also beneficial to simplify the management of the wireless access point by the wireless controller, and the management process is simple and clear.
  • the mobile terminal 21 After receiving the beacon frame or the probe response frame, the mobile terminal 21 acquires the priority identifier therein, and stores the priority identifier in the storage module to update the priority identifier information. The mobile terminal 21 compares the priority identifiers of the wireless access points 23 in the memory, and selects the wireless access point with the highest priority to establish a connection.
  • the third embodiment of the present invention is a method for a wireless access point to send priority information to a mobile terminal. As shown in FIG. 3, the method includes:
  • S32 Receive a priority identifier sent by the wireless controller, where the priority identifier is used to indicate a priority that the wireless access point is accessed by the mobile terminal.
  • the wireless access point may periodically send a priority query request to the wireless controller, or the wireless access point may send a priority query request to the wireless controller upon receiving the probe frame (Probe frame) of the mobile terminal.
  • the wireless access point sends a priority inquiry request to the wireless controller before transmitting the beacon frame and the probe response frame.
  • Priority inquiry request includes wireless access point mark And load information, the load information includes one or more of the CPU usage of the wireless access point, the number of mobile terminal accesses of the wireless access point, and the traffic of the wireless access point.
  • the priority query request includes the load information of the wireless access point, so that the access controller can calculate the priority of the wireless access point according to the load information of the wireless access point, thereby avoiding the mobile terminal accessing the high-load wireless access.
  • the wireless access point After receiving the priority identifier, the wireless access point adds the priority identifier to the vendor specific field of the beacon frame or probe response frame sent to the mobile terminal.
  • the use of the beacon frame or the probe response frame to transmit the priority identifier ensures that the mobile terminal knows the priority of the wireless access point before establishing a connection with the wireless access point, and can directly associate with the highest priority after establishing the association for the first time.
  • Wireless access point. This method also avoids interaction with other modes of the protocol, reducing the occupation of wireless bandwidth by the interaction process. Moreover, it is also beneficial to simplify the management of the wireless access point by the wireless controller, and the management process is simple and clear.
  • the fourth embodiment of the present invention is a wireless access point, as shown in FIG. 4, including:
  • the access point sending module 41 is configured to send a priority query request to the wireless controller, and send a priority identifier to the mobile terminal, where the priority identifier is used to indicate that the wireless access point is preferentially accessed by the mobile terminal. level;
  • the access point receiving module 42 is configured to receive a priority identifier sent by the wireless controller.
  • the wireless access point may periodically send a priority query request to the wireless controller, or the wireless access point may send a priority query request to the wireless controller upon receiving the probe frame (Probe frame) of the mobile terminal.
  • the wireless access point sends a priority inquiry request to the wireless controller before transmitting the beacon frame and the probe response frame.
  • the priority query request includes a wireless access point identifier and load information, and the load information includes one of a CPU usage of the wireless access point, a mobile terminal access number of the wireless access point, and a traffic of the wireless access point. Multiple.
  • the priority query request includes the load information of the wireless access point, so that the access controller can calculate the priority of the wireless access point according to the load information of the wireless access point, thereby avoiding the mobile terminal accessing the high-load wireless access.
  • the wireless access point After receiving the priority identifier, the wireless access point adds the priority identifier to the vendor specific field of the beacon frame or probe response frame sent to the mobile terminal. Use a beacon frame or probe response frame to send priority
  • the level identification ensures that the mobile terminal knows the priority of the wireless access point before establishing a connection with the wireless access point, and can directly associate with the highest priority wireless access point by establishing the association for the first time. This method also avoids interaction with other modes of the protocol, reducing the occupation of wireless bandwidth by the interaction process. Moreover, it is also beneficial to simplify the management of the wireless access point by the wireless controller, and the management process is simple and clear.
  • a fifth embodiment of the present invention is a method for a wireless controller to send priority information to a wireless access point, as shown in FIG. 5, including:
  • the wireless access point may periodically send a priority query request to the wireless controller, or the wireless access point may send a priority query request to the wireless controller upon receiving the probe frame (Probe frame) of the mobile terminal.
  • the wireless access point sends a priority inquiry request to the wireless controller before transmitting the beacon frame and the probe response frame.
  • the priority query request includes a wireless access point identifier and load information, and the load information includes one of a CPU usage of the wireless access point, a mobile terminal access number of the wireless access point, and a traffic of the wireless access point. Multiple.
  • the wireless controller receives the priority query request sent by the wireless access point, and obtains parameters included in the priority query request, such as the wireless access point identifier and the CPU usage of the wireless access point, and the mobile terminal of the wireless access point. Enter one or more of the number and traffic of the wireless access point and store the parameters.
  • the wireless controller calculates the priority of the wireless access point according to the parameters of each stored wireless access point, and generates a priority identifier, which may be a priority for calculating a wireless access point for sending a priority query request.
  • the level may also be a priority for calculating all wireless access points managed by the wireless controller.
  • Embodiment 6 of the present invention is a wireless controller, as shown in FIG. 6, comprising:
  • the controller receiving module 61 is configured to receive a priority query request sent by the wireless access point
  • the controller sending module 62 is configured to send a priority identifier to the wireless access point, where the priority identifier is A priority for indicating that the wireless access point is accessed by the mobile terminal.
  • the wireless access point may periodically send a priority query request to the wireless controller, or the wireless access point may send a priority query request to the wireless controller upon receiving the probe frame (Probe frame) of the mobile terminal.
  • the wireless access point sends a priority query request to the AC before sending the beacon frame and the probe response frame.
  • the priority query request includes a wireless access point identifier and load information, and the load information includes one of a CPU usage of the wireless access point, a mobile terminal access number of the wireless access point, and a traffic of the wireless access point. Multiple.
  • the wireless controller receives the priority query request sent by the wireless access point, and obtains parameters included in the priority query request, such as the wireless access point identifier and the CPU usage of the wireless access point, and the mobile terminal of the wireless access point. Enter one or more of the number and traffic of the wireless access point and store the parameters.
  • the wireless controller calculates the priority of the wireless access point according to the parameters of each stored wireless access point, and generates a priority identifier, which may be a priority for calculating a wireless access point for sending a priority query request.
  • the level may also be a priority for calculating all wireless access points managed by the wireless controller.
  • the seventh embodiment of the present invention is a method for a mobile terminal to access a wireless access point, including:
  • S71 Receive a priority identifier sent by a wireless access point, where the priority identifier is used to indicate a priority that the wireless access point is accessed by the mobile terminal.
  • S72 Select a wireless access point with the highest priority to establish a connection.
  • the priority identifier is first calculated by the wireless controller according to the load information of the wireless access point, and then sent by the wireless controller to the wireless access point.
  • the load information includes one or more of a CPU usage of the wireless access point, a mobile terminal access number of the wireless access point, and a traffic of the wireless access point.
  • the priority identifier is added in a vendor specific field of a beacon frame or probe response frame sent to the mobile terminal.
  • the use of the beacon frame or the probe response frame to transmit the priority identifier ensures that the mobile terminal knows the priority of the wireless access point before the wireless access point establishes the connection, and can directly associate with the highest priority wireless after establishing the association for the first time. Access Point.
  • This method also avoids interaction with other modes of the protocol, reducing the occupation of wireless bandwidth by the interaction process.
  • it is also beneficial to simplify the wireless controller to wireless connection The management of the entry point is simple and clear.
  • the mobile terminal After receiving the beacon frame or the probe response frame, the mobile terminal acquires the priority identifier therein, and stores the priority identifier in the storage module to update the priority identifier information. The mobile terminal compares the priority identifiers of the wireless access points in the memory, and selects the wireless access point with the highest priority to establish a connection.
  • Embodiment 8 of the present invention is a mobile terminal, including:
  • the terminal receiving module 81 is configured to receive a priority identifier sent by the wireless access, where the priority identifier is used to indicate a priority of the wireless access point being accessed by the mobile terminal;
  • the access module 82 establishes a connection with the highest priority wireless access point.
  • the priority identifier is first calculated by the wireless controller according to the load information of the wireless access point, and then sent by the wireless controller to the wireless access point.
  • the load information includes one or more of a CPU usage of the wireless access point, a mobile terminal access number of the wireless access point, and a traffic of the wireless access point.
  • the priority identifier is added in a vendor specific field of a beacon frame or probe response frame sent to the mobile terminal.
  • the use of the beacon frame or the probe response frame to transmit the priority identifier ensures that the mobile terminal knows the priority of the wireless access point before the wireless access point establishes the connection, and can directly associate with the highest priority wireless after establishing the association for the first time. Access Point.
  • This method also avoids interaction with other modes of the protocol, reducing the occupation of wireless bandwidth by the interaction process.
  • the mobile terminal After receiving the beacon frame or the probe response frame, the mobile terminal acquires the priority identifier therein, and stores the priority identifier in the storage module to update the priority identifier information. The mobile terminal compares the priority identifiers of the wireless access points in the memory, and selects the wireless access point with the highest priority to establish a connection.

Abstract

本发明提出了一种无线接入的方法，其特征在于，用于通过无线控制器控制至少一移动终端接入至少一无线接入点，所述无线接入的方法包括：所述无线接入点向无线控制器发送优先级询问请求；所述无线控制器接收所述优先级询问请求，生成优先级标识，并将优先级标识发送给所述无线接入点，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；所述无线接入点接收所述优先级标识，并将所述优先级标识发送给所述无线接入点无线覆盖范围内的所述移动终端；所述移动终端接收所述优先级标识，根据所述优先级标识选择无线接入点建立连接。本发明实现了移动终端快速选择合适的无线接入点，提高了用户体验，而且资源也得到了有效利用。

Description

无线接入的方法 技术领域
本发明涉及网络接入的方法，尤其是无线接入的方法。
背景技术
近几年，移动智能终端的快速发展激发了人们对移动互联网需求，移动办公、移动社交等大量的移动互联网应用进入了爆发式的发展阶段。人们已不满足于线缆束缚的上网体验。而网络设备AP(无线接入点)扮演着不可或缺的角色。无线接入点是组建小型无线局域网时最常用的设备，相当于一个连接有线网和无线网的桥梁，其主要作用是将各个无线网络客户端连接到一起，然后将无线网络接入以太网。
无线接入点常用于要求无线覆盖面较广的场所，比如大型商场、公司、医院等。一个无线接入点的覆盖范围大概只有30米至100米，所以经常将多个无线接入点组网形成支持一个SSID(服务集标识)的局域网，以增加其覆盖面。
在传统技术中，移动终端需要接入局域网时，侦听BEACON帧(信标帧)或向无线接入点发送Probe帧(探测帧)，通过认证后，在支持同一个SSID的AP中选择信号最强的进行连接。同样的，当移动终端处于从一个区域移动到另外一个区域，移动终端也是选择信号最强的无线接入点来实现漫游。但是，这种选择接入无线接入点的方式会出现部分无线接入点连接大量移动终端的拥挤，而部分无线接入点被闲置，从而造成一定的资源浪费。
发明内容
本发明解决的技术问题是：在多个无线接入点支持一个服务集标识的网络系统中，移动终端根据信号强度来选择无线接入点来建立连接从而出现部分无线接入点过于拥挤和部分接入点被闲置，造成资源得不到合理利用。
为解决上述问题，本发明提供一种无线接入的方法，用于通过一无线控制器控制至少一移动终端接入至少一无线接入点，所述无线接入的方法包括：
所述无线接入点向无线控制器发送优先级询问请求；
所述无线控制器接收所述优先级询问请求，生成优先级标识，并将优先级标识发送给所述无线接入点，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
所述无线接入点接收所述优先级标识，并将所述优先级标识发送给所述无线接入点无线覆盖范围内的所述移动终端；
所述移动终端接收所述优先级标识，根据所述优先级标识选择无线接入点建立连接。
优选地，所述生成优先级标识的步骤包括：
所述无线控制器根据所述无线接入点的负载来计算所述无线接入点的优先级，并生成优先级标识。
优选地，所述无线接入点将所述优先级标识发送给所述无线接入点无线覆盖范围内的所述移动终端，包括：
所述无线接入点将所述优先级标识添加在接入信息中，所述接入信息包括信标帧和/或探测响应帧；
无线接入点将所述接入信息发送给所述移动终端。
本发明还提供一种无线接入的网络系统，包括移动终端、无线控制器和至少一个无线接入点，
所述无线接入点，用于向所述无线控制器发送优先级询问请求，接收由所述无线控制器发送的优先级标识，并将所述优先级标识发送给所述无线接入点无线覆盖范围内的所述移动终端；
所述无线控制器，用于接收所述无线接入点发送的优先级询问请求，生成优先级标识，并将优先级标识发送给所述无线接入点，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
所述移动终端，用于接收所述由所述无线接入点发送的优先级标识，根据所述优先级标识选择所述无线接入点的其中之一建立连接。
本发明还提供一种无线接入点向移动终端发送优先级信息的方法，包括：
向无线控制器发送优先级询问请求；
接收无线控制器发送的优先级标识，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
向移动终端发送所述优先级标识。
本发明还提供一种无线接入点，包括：
接入点发送模块，用于向无线控制器发送优先级询问请求和向移动终端发送优先级标识，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
接入点接收模块，用于接收无线控制器发送的优先级标识。
本发明还提供一种无线控制器向无线接入点发送优先级信息的方法，包括：
接收无线接入点发送的优先级询问请求；
生成优先级标识，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
发送所述优先级标识至所述无线接入点。
本发明还提供一种无线控制器，包括：
控制器接收模块，用于接收无线接入点发送的优先级询问请求；
控制器发送模块，用于向无线接入点发送优先级标识，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级。
本发明还提供一种移动终端接入无线接入点的方法，
接收无线接入点发送的优先级标识，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
选择优先级最高的无线接入点建立连接。
本发明还提供一种移动终端，
终端接收模块，用于接收无线接入发送的优先级标识，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
接入模块，与优先级最高的无线接入点建立连接。
本发明由无线接入控制器计算得到无线接入点的优先级而生成优先级标识，再将优先级标识通过无线接入点发送给移动终端，移动终端根据接收到的优先级标识来选择优先级最强的无线接入点来建立连接，实现了移动终端快速 选择合适的无线接入点，提高了用户体验，而且资源也得到了有效利用。
附图说明
图1是本发明实施例一无线接入的方法的示意图；
图2是本发明实施例二无线接入的网络系统的示意图；
图3是本发明实施例三无线接入点向移动终端发送优先级信息的方法的示意图；
图4是本发明实施例四无线接入点的示意图；
图5是本发明实施例五无线控制器向无线接入点发送优先级信息的方法的示意图；
图6是本发明实施例六无线控制器的示意图；
图7是本发明实施例七移动终端接入无线接入点的方法的示意图；
图8是本发明实施例八移动终端的示意图。
具体实施方式
为了使本领域相关技术人员更好地理解本发明的技术方案，下面将结合本发明实施方式的附图，对本发明实施方式中的技术方案进行清楚、完整地描述，显然，所描述的实施方式仅仅是本发明一部分实施方式，而不是全部的实施方式。
实施例一
本发明实施例一是一种无线接入的方法，用于通过无线控制器控制至少一移动终端接入至少一无线接入点，如图1所示，包括：
S11，无线接入点向无线控制器发送优先级询问请求；
S12，无线控制器接收优先级询问请求，生成优先级标识，并将优先级标识发送给无线接入点，优先级标识用于指明无线接入点被移动终端接入的优先级；
S13，无线接入点接收优先级标识，并将所述优先级标识发送给无线接入点无线覆盖范围内的移动终端；
S14，移动终端接收所述优先级标识，根据优先级标识选择无线接入点建立连接。
在本实施例中，无线接入控制器计算得到无线接入点的优先级而生成优先级标识，再将优先级标识通过无线接入点发送给移动终端，移动终端根据接收到的优先级标识来选择优先级最强的无线接入点来建立连接，实现了移动终端快速选择合适的无线接入点，提高了用户体验，而且资源也得到了有效利用。
无线接入点可以是周期性地向无线控制器发送优先级询问请求，也可以是无线接入点在接收到移动终端的探测帧(Probe帧)时向无线控制器发送优先级询问请求。为了保证优先级的及时性，无线接入点每次发送信标帧和探测响应帧前要向无线控制器发送优先级询问请求。优先级询问请求包括无线接入点标识和负载信息，负载信息包括无线接入点的CPU使用情况、无线接入点的移动终端接入数量和无线接入点的流量三者之中的一个或多个。
无线控制器接收无线接入点发送的优先级询问请求，获取包含在优先级询问请求中的参数，如无线接入点标识和无线接入点的CPU使用情况、无线接入点的移动终端接入数量和无线接入点的流量三者之中的一个或多个，并存储参数。无线控制器根据其所存储的各个无线接入点的参数来计算无线接入点的优先级，并生成优先级标识，这一步可以是计算某个发送优先级询问请求的无线接入点的优先级也可以是计算所有该无线控制器所管理的无线接入点的优先级。
优先级询问请求包括无线接入点的负载信息，使得接入控制器可以根据无线接入点的负载信息来计算无线接入点的优先级，这样避免了移动终端接入高负载的无线接入点而出现一些掉线、速度慢等问题，提升了用户上网的体验。
无线接入点接收优先级标识后，将优先级标识添加在发送给移动终端的信标帧或探测响应帧的供应商特定字段(Vendor Specific IE)中。利用信标帧或探测响应帧来发送优先级标识，保证了移动终端在与无线接入点建立连接之前知道无线接入点的优先级，可以第一次建立关联就直接关联到最高优先级的无线接入点。此种方式也避免了与其他方式的协议交互，降低了交互过程对无线带宽的占用。再者，也有利于简化无线控制器对无线接入点的管理，管理过程简洁、明了。
当移动终端接收到信标帧或探测响应帧后，获取其中的优先级标识，并将 优先级标识存储在存储模块内以更新优先级标识信息。移动终端再比较存储器内各无线接入点的优先级标识，选择优先级最高的无线接入点建立连接。
实施例二
本发明实施例二是一种无线接入的网络系统，如图2所示，包括移动终端21、无线控制器22和至少一个无线接入点23。
无线接入点23，用于向所述无线控制器22发送优先级询问请求，接收由所述无线控制器22发送的优先级标识，并将所述优先级标识发送给所述无线接入点23无线覆盖范围内的所述移动终端21。
无线控制器22，用于接收所述无线接入点23发送的优先级询问请求，生成优先级标识，并将优先级标识发送给所述无线接入点23，所述优先级标识用于指明所述无线接入点23被所述移动终端21接入的优先级。
移动终端21，用于接收所述由所述无线接入点23发送的优先级标识，根据所述优先级标识选择所述无线接入点23的其中之一建立连接。
本发明对移动终端21、无线接入点22和无线控制器23的数量不做限定。
在本实施例中，无线控制器22计算得到无线接入点23的优先级而生成优先级标识，再将优先级标识通过无线接入点23发送给移动终端21，移动终端21根据接收到的优先级标识来选择优先级最强的无线接入点23来建立连接，实现了移动终端快速选择合适的无线接入点，提高了用户体验，而且资源也得到了有效利用。
无线接入点23可以是周期性地向无线控制器22发送优先级询问请求，也可以是无线接入点23在接收到移动终端21的探测帧时向无线控制器22发送优先级询问请求。为了保证优先级的及时性，无线接入点23每次发送信标帧和探测响应帧前要向无线控制器22发送优先级询问请求。优先级询问请求包括无线接入点标识和负载信息，负载信息包括无线接入点的CPU使用情况、无线接入点的移动终端接入数量和无线接入点的流量三者之中的一个或多个。
无线控制器22接收无线接入点23发送的优先级询问请求，获取包含在优先级询问请求中的参数，如无线接入点标识和无线接入点的CPU使用情况、无 线接入点的移动终端接入数量和无线接入点的流量三者之中的一个或多个，并存储参数。无线控制器22根据其所存储的各个无线接入点23的参数来计算无线接入点的优先级，并生成优先级标识，这一步可以是计算某个发送优先级询问请求的无线接入点的优先级也可以是计算所有该无线控制器所管理的无线接入点的优先级。
优先级询问请求包括无线接入点的负载信息，使得接入控制器可以根据无线接入点的负载信息来计算无线接入点的优先级，这样避免了移动终端接入高负载的无线接入点而出现一些掉线、速度慢等问题，提升了用户上网的体验。
无线接入点23接收优先级标识后，将优先级标识添加在发送给移动终端21的信标帧或探测响应帧的Vendor Specific IE中。利用信标帧或探测响应帧来发送优先级标识，保证了移动终端21在于无线接入点建立连接之前知道无线接入点的优先级，可以第一次建立关联就直接关联到最高优先级的无线接入点。此种方式也避免了与其他方式的协议交互，降低了交互过程对无线带宽的占用。再者，也有利于简化无线控制器对无线接入点的管理，管理过程简洁、明了。
当移动终端21接收到信标帧或探测响应帧后，获取其中的优先级标识，并将优先级标识存储在存储模块内以更新优先级标识信息。移动终端21再比较存储器内各无线接入点23的优先级标识，选择优先级最高的无线接入点建立连接。
实施例三
本发明实施例三是一种无线接入点向移动终端发送优先级信息的方法，如图3所示，包括：
S31，向无线控制器发送优先级询问请求；
S32，接收无线控制器发送的优先级标识，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
S33，向移动终端发送所述优先级标识。
无线接入点可以是周期性地向无线控制器发送优先级询问请求，也可以是无线接入点在接收到移动终端的探测帧(Probe帧)时向无线控制器发送优先级询问请求。为了保证优先级的及时性，无线接入点每次发送信标帧和探测响应帧前要向无线控制器发送优先级询问请求。优先级询问请求包括无线接入点标 识和负载信息，负载信息包括无线接入点的CPU使用情况、无线接入点的移动终端接入数量和无线接入点的流量三者之中的一个或多个。
优先级询问请求包括无线接入点的负载信息，使得接入控制器可以根据无线接入点的负载信息来计算无线接入点的优先级，这样避免了移动终端接入高负载的无线接入点而出现一些掉线、速度慢等问题，提升了用户上网的体验。
无线接入点接收优先级标识后，将优先级标识添加在发送给移动终端的信标帧或探测响应帧的供应商特定字段中。利用信标帧或探测响应帧来发送优先级标识，保证了移动终端在与无线接入点建立连接之前知道无线接入点的优先级，可以第一次建立关联就直接关联到最高优先级的无线接入点。此种方式也避免了与其他方式的协议交互，降低了交互过程对无线带宽的占用。再者，也有利于简化无线控制器对无线接入点的管理，管理过程简洁、明了。
实施例四
本发明实施例四是一种无线接入点，如图4所示，包括：
接入点发送模块41，用于向无线控制器发送优先级询问请求和向移动终端发送优先级标识，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
接入点接收模块42，用于接收无线控制器发送的优先级标识。
无线接入点可以是周期性地向无线控制器发送优先级询问请求，也可以是无线接入点在接收到移动终端的探测帧(Probe帧)时向无线控制器发送优先级询问请求。为了保证优先级的及时性，无线接入点每次发送信标帧和探测响应帧前要向无线控制器发送优先级询问请求。优先级询问请求包括无线接入点标识和负载信息，负载信息包括无线接入点的CPU使用情况、无线接入点的移动终端接入数量和无线接入点的流量三者之中的一个或多个。
优先级询问请求包括无线接入点的负载信息，使得接入控制器可以根据无线接入点的负载信息来计算无线接入点的优先级，这样避免了移动终端接入高负载的无线接入点而出现一些掉线、速度慢等问题，提升了用户上网的体验。
无线接入点接收优先级标识后，将优先级标识添加在发送给移动终端的信标帧或探测响应帧的供应商特定字段中。利用信标帧或探测响应帧来发送优先 级标识，保证了移动终端在与无线接入点建立连接之前知道无线接入点的优先级，可以第一次建立关联就直接关联到最高优先级的无线接入点。此种方式也避免了与其他方式的协议交互，降低了交互过程对无线带宽的占用。再者，也有利于简化无线控制器对无线接入点的管理，管理过程简洁、明了。
实施例五
本发明实施例五是一种无线控制器向无线接入点发送优先级信息的方法，如图5所示，包括：
S51，接收无线接入点发送的优先级询问请求；
S52，生成优先级标识，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
S53，发送所述优先级标识至所述无线接入点。
无线接入点可以是周期性地向无线控制器发送优先级询问请求，也可以是无线接入点在接收到移动终端的探测帧(Probe帧)时向无线控制器发送优先级询问请求。为了保证优先级的及时性，无线接入点每次发送信标帧和探测响应帧前要向无线控制器发送优先级询问请求。优先级询问请求包括无线接入点标识和负载信息，负载信息包括无线接入点的CPU使用情况、无线接入点的移动终端接入数量和无线接入点的流量三者之中的一个或多个。
无线控制器接收无线接入点发送的优先级询问请求，获取包含在优先级询问请求中的参数，如无线接入点标识和无线接入点的CPU使用情况、无线接入点的移动终端接入数量和无线接入点的流量三者之中的一个或多个，并存储参数。无线控制器根据其所存储的各个无线接入点的参数来计算无线接入点的优先级，并生成优先级标识，这一步可以是计算某个发送优先级询问请求的无线接入点的优先级也可以是计算所有该无线控制器所管理的无线接入点的优先级。
实施例六
本发明实施例六是一种无线控制器，如图6所示，包括：
控制器接收模块61，用于接收无线接入点发送的优先级询问请求；
控制器发送模块62，用于向无线接入点发送优先级标识，所述优先级标识 用于指明所述无线接入点被所述移动终端接入的优先级。
无线接入点可以是周期性地向无线控制器发送优先级询问请求，也可以是无线接入点在接收到移动终端的探测帧(Probe帧)时向无线控制器发送优先级询问请求。为了保证优先级的及时性，无线接入点每次发送信标帧和探测响应帧前要向AC发送优先级询问请求。优先级询问请求包括无线接入点标识和负载信息，负载信息包括无线接入点的CPU使用情况、无线接入点的移动终端接入数量和无线接入点的流量三者之中的一个或多个。
无线控制器接收无线接入点发送的优先级询问请求，获取包含在优先级询问请求中的参数，如无线接入点标识和无线接入点的CPU使用情况、无线接入点的移动终端接入数量和无线接入点的流量三者之中的一个或多个，并存储参数。无线控制器根据其所存储的各个无线接入点的参数来计算无线接入点的优先级，并生成优先级标识，这一步可以是计算某个发送优先级询问请求的无线接入点的优先级也可以是计算所有该无线控制器所管理的无线接入点的优先级。
实施例七
本发明实施例七是一种移动终端接入无线接入点的方法，包括：
S71，接收无线接入点发送的优先级标识，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
S72，选择优先级最高的无线接入点建立连接。
所述优先级标识首先由无线控制器根据无线接入点的负载信息计算所得，再由无线控制器发送给无线接入点。所述负载信息包括无线接入点的CPU使用情况、无线接入点的移动终端接入数量和无线接入点的流量三者之中的一个或多个。
所述优先级标识添加在发送给移动终端的信标帧或探测响应帧的供应商特定字段中。利用信标帧或探测响应帧来发送优先级标识，保证了移动终端在于无线接入点建立连接之前知道无线接入点的优先级，可以第一次建立关联就直接关联到最高优先级的无线接入点。此种方式也避免了与其他方式的协议交互，降低了交互过程对无线带宽的占用。再者，也有利于简化无线控制器对无线接 入点的管理，管理过程简洁、明了。
当移动终端接收到信标帧或探测响应帧后，获取其中的优先级标识，并将优先级标识存储在存储模块内以更新优先级标识信息。移动终端再比较存储器内各无线接入点的优先级标识，选择优先级最高的无线接入点建立连接。
实施例八
本发明实施例八是一种移动终端，包括：
终端接收模块81，用于接收无线接入发送的优先级标识，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
接入模块82，与优先级最高的无线接入点建立连接。
所述优先级标识首先由无线控制器根据无线接入点的负载信息计算所得，再由无线控制器发送给无线接入点。所述负载信息包括无线接入点的CPU使用情况、无线接入点的移动终端接入数量和无线接入点的流量三者之中的一个或多个。
所述优先级标识添加在发送给移动终端的信标帧或探测响应帧的供应商特定字段中。利用信标帧或探测响应帧来发送优先级标识，保证了移动终端在于无线接入点建立连接之前知道无线接入点的优先级，可以第一次建立关联就直接关联到最高优先级的无线接入点。此种方式也避免了与其他方式的协议交互，降低了交互过程对无线带宽的占用。再者，也有利于简化无线控制器对无线接入点的管理，管理过程简洁、明了。
当移动终端接收到信标帧或探测响应帧后，获取其中的优先级标识，并将优先级标识存储在存储模块内以更新优先级标识信息。移动终端再比较存储器内各无线接入点的优先级标识，选择优先级最高的无线接入点建立连接。
以上仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种无线接入的方法，其特征在于，用于通过无线控制器控制至少一移动终端接入至少一无线接入点，所述无线接入的方法包括：
    所述无线接入点向无线控制器发送优先级询问请求；
    所述无线控制器接收所述优先级询问请求，生成优先级标识，并将优先级标识发送给所述无线接入点，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
    所述无线接入点接收所述优先级标识，并将所述优先级标识发送给所述无线接入点无线覆盖范围内的所述移动终端；
    所述移动终端接收所述优先级标识，根据所述优先级标识选择无线接入点建立连接。
  2. 根据权利要求1所述的无线接入的方法，其特征在于，所述生成优先级标识的步骤包括：
    所述无线控制器根据所述无线接入点的负载来计算所述无线接入点的优先级，并生成优先级标识。
  3. 根据权利要求1所述的无线接入的方法，其特征在于，所述无线接入点将所述优先级标识发送给所述无线接入点无线覆盖范围内的所述移动终端，包括：
    所述无线接入点将所述优先级标识添加在接入信息中，所述接入信息包括信标帧和/或探测响应帧；
    无线接入点将所述接入信息发送给所述移动终端。
  4. 一种无线接入的网络系统，包括移动终端、无线控制器和至少一个无线接入点，其特征在于，
    所述无线接入点，用于向所述无线控制器发送优先级询问请求，接收由所述无线控制器发送的优先级标识，并将所述优先级标识发送给所述无线接入点无线覆盖范围内的所述移动终端；
    所述无线控制器，用于接收所述无线接入点发送的优先级询问请求，生成优先级标识，并将优先级标识发送给所述无线接入点，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
    所述移动终端，用于接收所述由所述无线接入点发送的优先级标识，根据 所述优先级标识选择所述无线接入点的其中之一建立连接。
  5. 一种无线接入点向移动终端发送优先级信息的方法，其特征在于，包括：
    向无线控制器发送优先级询问请求；
    接收无线控制器发送的优先级标识，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
    向移动终端发送所述优先级标识。
  6. 一种无线接入点，其特征在于，包括：
    接入点发送模块，用于向无线控制器发送优先级询问请求和向移动终端发送优先级标识，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
    接入点接收模块，用于接收无线控制器发送的优先级标识。
  7. 一种无线控制器向无线接入点发送优先级信息的方法，其特征在于，包括：
    接收无线接入点发送的优先级询问请求；
    生成优先级标识，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
    发送所述优先级标识至所述无线接入点。
  8. 一种无线控制器，其特征在于，包括：
    控制器接收模块，用于接收无线接入点发送的优先级询问请求；
    控制器发送模块，用于向无线接入点发送优先级标识，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级。
  9. 一种移动终端接入无线接入点的方法，其特征在于，包括：
    接收无线接入点发送的优先级标识，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
    选择优先级最高的无线接入点建立连接。
  10. 一种移动终端，其特征在于，包括：
    终端接收模块，用于接收无线接入发送的优先级标识，所述优先级标识用于指明所述无线接入点被所述移动终端接入的优先级；
    接入模块，与优先级最高的无线接入点建立连接。
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