WO2013155916A1 - 应用于wlan的分流信息的获取方法及系统 - Google Patents

应用于wlan的分流信息的获取方法及系统 Download PDF

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Publication number
WO2013155916A1
WO2013155916A1 PCT/CN2013/073000 CN2013073000W WO2013155916A1 WO 2013155916 A1 WO2013155916 A1 WO 2013155916A1 CN 2013073000 W CN2013073000 W CN 2013073000W WO 2013155916 A1 WO2013155916 A1 WO 2013155916A1
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WO
WIPO (PCT)
Prior art keywords
information
wlan
network
terminal
offload
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PCT/CN2013/073000
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English (en)
French (fr)
Inventor
田甜
严为
魏元
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP13778049.0A priority Critical patent/EP2840815B1/en
Publication of WO2013155916A1 publication Critical patent/WO2013155916A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/10Flow control between communication endpoints
    • H04W28/12Flow control between communication endpoints using signalling between network elements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/16Performing reselection for specific purposes
    • H04W36/22Performing reselection for specific purposes for handling the traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/02Access restriction performed under specific conditions
    • H04W48/06Access restriction performed under specific conditions based on traffic conditions

Definitions

  • the present invention relates to the field of communications, and in particular, to a cellular network, a wired fixed network, and a WLAN convergence, and provides a method and system for acquiring offload information applied to a WLAN when performing data service offloading.
  • WLAN Wireless Local Access Network
  • WLAN Wireless Local Access Network
  • It has gradually evolved from the earliest home-grade WLANs using fat APs (Access Point) to enterprise-class and carrier-class WLANs. So far, WLANs using thin AP+AC (Access Controller) architecture are being deployed. And evolving. The network structure has become more complicated, and the network scale is even larger. Therefore, the problem of network operation and management needs is also highlighted.
  • WLAN forms an effective supplement for fixed broadband access and mobile data services:
  • Fixed broadband access WLAN provides wireless extension of the last 100 meters access, which is greatly convenient for users to use, and realizes the mobileization of fixed broadband access;
  • Service WLAN is currently used as an alternative and supplementary means for 3G technology.
  • data traffic offloading operators can solve the problem of excessive data traffic on 3G networks, excessive use of wireless resources and excessive network load.
  • the convergence of WLAN and cellular networks, technologies such as Wifi offloading and stream migration are widely proposed in order to more effectively and fully utilize wireless network resources, reduce network operation costs, and provide rich services and better use for mobile users.
  • Wifi offloading and stream migration are widely proposed in order to more effectively and fully utilize wireless network resources, reduce network operation costs, and provide rich services and better use for mobile users.
  • the flow migration service is a further application of heterogeneous network convergence, for example: after the terminal simultaneously accesses the network through the cellular network and the WLAN, various The IP flows of the traffic are transmitted in the cellular network and the WLAN access, respectively.
  • the user initiates an FTP download service from the cellular network access. Due to the development of the FTP service, the load on the cellular network is increased. To ensure normal access to other services, the IP flows of non-conversation video services and Web access services will be migrated to the WLAN. After the FTP download service ends, the IP flows of the non-conversation video service and the Web access service are migrated back to the cellular network.
  • the WLAN access network is composed of several AP points continuously covering, which can be called a WLAN hot zone.
  • the WLAN terminal can freely move and switch in the WLAN hot zone and maintain business continuity.
  • the WLAN hot zone accesses the cellular core network element through the AC.
  • P-GW PDN GateWay, packet data network gateway.
  • ePDG Evolved Packet
  • Data Gateway Mobility support for WLAN terminals in the WLAN hotspot, and between the WLAN hotspot and the cellular network is provided by the AC of the WLAN network and the network elements of the cellular network.
  • UE1 User Equipment
  • UE2 is a WLAN/cellular multimode terminal, and the terminal can simultaneously access the network through the WLAN and the cellular access network. Smooth mobile switching between WLAN and cellular networks.
  • the correct split traffic decision is a key issue.
  • the network element of the cellular network cannot know the status of the WLAN network where the user is located, for example, the quality of the WLAN link of the user is poor, or the original coverage of the WLAN has left the mobile, this will result in the offloading and After the flow migration service is executed, the service flow is lost, the service is interrupted, and the user experience is reduced.
  • an embodiment of the present invention provides a method for acquiring offload information applied to a WLAN. And the system, to provide the WLAN offload information of the WLAN link quality, the location information, and the load condition of the fixed network or the cellular network, so that the network can accurately determine and trigger whether to perform shunt or flow migration, thereby ensuring The correct implementation of the split and flow migration ensures the user experience and takes into account the large-scale centralized control, high reliability, and overall security required for the carrier-class WLAN.
  • a method for acquiring offload information applied to a wireless local area network comprising: deploying a mobile server in a WLAN;
  • the mobile server obtains WLAN offload information, and sends the WLAN offload information to a traffic off network control network element of the cellular network or the fixed network;
  • the offloading service control network element performs a offloading service decision according to the offloading information.
  • the mobile server obtains the WLAN offload information from the access point AP, the access controller AC, or the terminal itself.
  • the obtaining, by the mobile server, the offload information of the WLAN includes:
  • the mobile server obtains the offload information of the WLAN that is actively reported by the access point AP/access controller AC; or
  • the mobile server acquires the offload information of the WLAN where the terminal is actively reported by the terminal; or
  • the mobile server requests the WLAN offloading information by sending a offloading information query request to the access point AP/access controller AC or terminal.
  • the WLAN offload information includes at least media access control MAC address information, prefix or IP address information of the terminal, access point AP/access controller AC information, security context information, subscription information, and One of the quality of service QoS policy information, the traffic policy information, the link quality information, the location information, and the network load status information of the access point AP/access controller AC to which the terminal is connected.
  • the offloading service control network element of the cellular network is a verification-authorization and accounting AAA server, a policy control function entity PCRF, or a packet data gateway P-GW;
  • the offloaded service control network element of the fixed network is a broadband remote access server BRAS, a service router SR, a broadband network gateway control device BNG, or a resource admission control function entity RACS.
  • the above method further includes:
  • the mobile server When the offloading service control network element decides to trigger the traffic offloading, the mobile server performs the service offloading by using the mobile server or the offloading execution network element in the WLAN.
  • the offloading execution network element in the WLAN is an access point AP, an access controller AC, or a user terminal.
  • An offloading information acquisition system for a wireless local area network comprising a split network service control network element of a cellular network or a fixed network, and a mobile server deployed in the WLAN, wherein the mobile server is configured to obtain a WLAN offload And sending the WLAN offload information to the offloading service control network element;
  • WLAN wireless local area network
  • the offload service control network element is configured to perform a offload service decision according to the WLAN offload information.
  • the mobile server is configured to obtain WLAN offload information of the WLAN network from the access point AP, the access controller AC or the terminal itself.
  • the mobile server is configured to access the access point AP and the access controller in the following manner
  • the AC or the terminal itself obtains the WLAN offload information of the WLAN network:
  • the WLAN offload information includes at least media access control MAC address information, prefix or IP address information of the terminal, access point AP/access controller AC information, security context information, subscription information, and One of the quality of service QoS policy information, the traffic policy information, the link quality information, the location information, and the network load status information of the access point AP/access controller AC to which the terminal is connected.
  • the offload service control network element of the cellular network is a verification-authorization and accounting AAA server, a policy control function entity PCRF, or a packet data gateway P-GW;
  • the offloaded service control network element of the fixed network is a broadband remote access server BRAS, a service router SR, a broadband network gateway control device BNG, or a resource admission control function entity RACS.
  • the offload service control network element is further configured to:
  • the offloading execution in the WLAN performs network traffic offloading.
  • the offloading execution network element in the WLAN is an access point AP, an access controller AC, or a user terminal.
  • a mobile server the mobile server is deployed in a wireless local area network (WLAN), and includes an acquiring unit, configured to acquire WLAN offload information, and send the WLAN offload information to a split network service control network element of a cellular network or a fixed network. And causing the offloading service control network element to perform a traffic offloading service decision according to the WLAN offloading information.
  • WLAN wireless local area network
  • the acquiring unit is configured to acquire WLAN offload information of the WLAN network from the access point AP, the access controller AC, or the terminal itself.
  • the acquiring unit is configured to access the AP from the access point in the following manner.
  • the AC or the terminal itself obtains the WLAN offload information of the WLAN network:
  • the embodiment of the present invention adds a mobile server to the WLAN operation network
  • the mobile server is a WMS (Wi-Fi Mobile Server, Wi-Fi mobile server)
  • the mobile The server provides WLAN offload information such as the WLAN network link quality, location information, and load status of the fixed network on the fixed network or the cellular network, which facilitates the network to accurately determine and trigger whether to perform shunting or flow migration, and ensures the offloading.
  • the correct implementation of the flow migration ensures the user experience and takes into account the large-scale centralized control, high reliability, and overall security required for the carrier-class WLAN.
  • the WMS mobile server has the following specific functions:
  • the WMS mobile server acts as a control plane interface between the cellular network or the fixed network and the WLAN network, and assists the unified management of the converged network and assists the handover and flow migration between the heterogeneous networks;
  • the WMS mobile server assists the terminal in implementing secure fast access and seamless handover in the WLAN network to solve the problem of the terminal positioning, roaming, mobility support and the like in the WLAN network;
  • the WMS mobile server is deployed in a centralized manner to implement unified management of user status information, which can be quickly deployed and simple operation and maintenance.
  • FIG. 1 is a schematic structural diagram of a WLAN hot zone and a cellular convergence network in the related art
  • FIG. 2 is a schematic diagram of a WMS management architecture when a WLAN network hot zone and a heterogeneous network are merged according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of WLAN offloading information for offloading service of a WLAN that is actively reported by an WLAN according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of WLAN offloading information for offloading service of a WLAN that is actively reported by a WLAN according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart of WLAN offloading information used by a WLAN to report a WLAN offloading service for a WLAN network according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a structure of a WMS and a traffic distribution control network element according to an embodiment of the present invention.
  • FIG. 7 is a schematic flowchart of a WMS and a traffic distribution control network element according to an embodiment of the present invention.
  • An embodiment of the present invention provides a method for acquiring offloaded service information applied to a WLAN, which includes the following steps:
  • the mobile server obtains WLAN offload information, and sends the information to a traffic off network control network element of the cellular network or the fixed network.
  • the offload service control network element performs the offload service according to the WLAN offload information.
  • the mobile server may be deployed separately, or may be combined with a traffic distribution control network element of a cellular network or a fixed network.
  • the mobile server may obtain the WLAN offload information of the WLAN network from the access point AP, the access controller AC, or the terminal itself.
  • the method for the mobile server to obtain the WLAN offload information of the WLAN network from the access point AP, the access controller AC, or the terminal itself is:
  • access point AP/access controller AC actively reports WLAN offload information of the WLAN network
  • the terminal actively sends the WLAN offload information of the WLAN network where it is located;
  • the mobile server queries the access point AP/access controller AC or terminal by sending a offload information query request to request WLAN offload information.
  • the offloading service control network element of the cellular network or the fixed network sends a diversion information query request to the mobile server, and then the mobile server determines whether to directly reply the information, or to the access point AP/access controller AC. Or the terminal sends a diversion information query request.
  • the mobile server may be configured according to the WLAN.
  • the mobile server is a WMS (Wi-Fi Mobile Server) mobile server, which is a centralized management.
  • the mode of storing and maintaining the context information of the user terminal is performed by the reporting of the network element, such as an access point (AP), and the AC (Access Controller), where the WLAN offload information includes at least the media access control of the terminal.
  • MAC Media Access Control
  • AP/access controller AC information access point
  • security context information e.g., prefix or IP address information
  • subscription information e.g., quality of service QoS policy information
  • offload Policy information e.g., link quality information, location information, and connected access
  • link quality information e.g., location information, and connected access
  • the offload service control network element of the cellular network is a 3GPP authentication-authorization and AAA (Authentication 3 ⁇ 4 Authorization, Accounting-4 authorized and "i" long server), policy control function entity PCRF (Policy and Charging Rule Function), or Packet Data Network Gateway (P-GW);
  • AAA Authentication 3 ⁇ 4 Authorization, Accounting-4 authorized and "i" long server
  • PCRF Policy and Charging Rule Function
  • P-GW Packet Data Network Gateway
  • the fixed network traffic control network element of the fixed network is a Broadband Remote Access Server (BRAS), a Service Router (Service Router), and a Broadband Network Gateway (BNG).
  • BRAS Broadband Remote Access Server
  • BNG Broadband Network Gateway
  • the broadband network gateway control device or the resource admission control function entity RACS (Resource and Admission Control Function).
  • the offloading service control network element of the cellular network or the fixed network specifically performs service decision.
  • the network element and the service decision method have agreement in the corresponding standard organizations of the cellular network and the fixed network. It will not be described in detail in the embodiments of the invention.
  • the embodiment of the present invention further provides a system for acquiring the offloaded service information applied to the WLAN network.
  • the method includes the offloaded service control network element of the cellular network or the fixed network, and is also in the WLAN network. Deploy a mobile server, where
  • the mobile server is configured to obtain the WLAN offload information, and send the WLAN offload information to the offload service control network element of the cellular network or the fixed network;
  • the offloading service control network element of the cellular network or the fixed network is configured to perform the offloading service according to the WLAN offloading information.
  • the mobile server may be deployed separately, or may be combined with a traffic distribution control network element of a cellular network or a fixed network.
  • the mobile server may obtain WLAN offload information from the access point AP, the access controller AC, or the terminal itself.
  • the manner in which the mobile server obtains the WLAN offload information of the WLAN from the access point AP, the access controller AC, or the terminal itself is:
  • the mobile server queries the access point AP/access controller AC or the terminal by sending the offload information query request to request the WLAN offload information.
  • the offloading service control network element of the cellular network or the fixed network sends a diversion information query request to the mobile server, and then the mobile server determines whether to directly reply the information, or to the access point AP/access controller AC. Or the terminal sends a diversion information query request.
  • the mobile server is a WMS (Wi-Fi Mobile Server) mobile server, which is a centralized management mode, through an AP (Access Point, Access Point) / AC (
  • the information of the user terminal such as the Access Controller, the access controller, stores the context information of the user terminal, and the WLAN offload information includes at least the Media Access Control (MAC) address information and the prefix of the terminal.
  • MAC Media Access Control
  • IP address information, access point AP/access controller AC information, security context information, subscription information, quality of service QoS policy information, traffic policy information, link quality information, location information, and location One of the network load situation information of the connected access point AP/access controller AC
  • the traffic control network element of the cellular network is a verification-authorization and accounting AAA server, a policy control function entity PCRF, or a packet data gateway P-GW;
  • the offloaded service control network element of the fixed network is a broadband remote access server BRAS, a service router SR, a broadband network gateway control device BNG, or a resource admission control function entity RACS.
  • the embodiment of the present invention further provides a mobile server, which is deployed in a WLAN, and includes an acquiring module, configured to acquire WLAN offload information, and send the WLAN offload information to a traffic off network control network element of a cellular network or a fixed network, so that The offload service control network element performs the offload service decision according to the WLAN offload information.
  • a mobile server which is deployed in a WLAN, and includes an acquiring module, configured to acquire WLAN offload information, and send the WLAN offload information to a traffic off network control network element of a cellular network or a fixed network, so that The offload service control network element performs the offload service decision according to the WLAN offload information.
  • FIG. 3 it is a schematic flowchart of WLAN offloading information used by a WLAN to report traffic (through an AP/AC) WLAN for offloading services according to an embodiment of the present invention.
  • the WLAN offloading information is performed by the AC/AP to the WMS. Reported.
  • the AC implements the reporting of related information.
  • the AP can be implemented by the fat AP. The specific steps on the information are as follows:
  • Step 301 The AP/AC sends a WLAN offload information report message to the WMS, where the message includes information such as the link quality, the location of the terminal, and the network load of the AP/AC, and may be extended or used in whole or in use. .
  • the AP/AC can periodically report the WLAN offloading information to the WMS or according to the policy. When the reporting condition of the WLAN offloading information reporting policy is met, the triggering message is reported. For example, when the WLAN signal changes or the load is large, the WLAN is triggered. The traffic distribution information is reported.
  • the policy of the AP/AC can be implemented by using a pre-configured or dynamically obtained method. In the embodiment of the present invention, the AP/AC has been configured with a WLAN offloading information reporting policy.
  • Step 302 After receiving the information reported by the AP/AC, the WMS returns a confirmation message.
  • Step 303 The WMS sends a WLAN offload information report message to the cellular network or the fixed network related network element, where the message includes information such as the link quality, the location of the terminal, and the network load of the AP/AC.
  • the parameters included in the message may be specifically selected as part or all of the above examples or extended for use.
  • Step 304 The related network element in the cellular network or the fixed network performs service decision of the service such as data offloading according to the WLAN offload information obtained from the WMS, for example, whether to perform flow migration.
  • the cellular network or fixed network traffic distribution control network element is a network element responsible for WLAN access, such as a gateway such as a P-GW, and how to make business decisions. These network elements and service decision methods are in standard organizations of the cellular network and the fixed network. There are protocol provisions, which are not described in detail in the embodiments of the present invention.
  • Step 305 The cellular network or the fixed network offload service control network element sends an acknowledgement message to the WMS. Assume that the flow migration condition is reached at this time, and the flow migration is triggered.
  • the message may also carry the information such as the flow migration execution information to the WMS.
  • the WMS can adjust the frequency and amplitude of the message reporting according to the flow migration execution information included in the message. The specific use can be configured by the operator according to the actual situation.
  • Step 306 The WMS may send a flow migration execution message to the AP/AC, and the message may also be directly sent to the AP/AC by the cellular network or the fixed network traffic distribution control network element.
  • WLAN active reporting through the terminal itself
  • FIG. 4 is a WLAN active reporting (through the terminal itself) WLAN provided by an embodiment of the present invention.
  • Step 401 The terminal sends a WLAN offload information report message to the WMS, where the message includes information such as the link quality and the location of the terminal.
  • the parameters included in the message may be specifically selected according to specific conditions. For some or all of the above examples or for further expansion.
  • the terminal can periodically report information to the WMS or according to the policy, and when the condition of the report is met, the message is reported, and the dynamic information is triggered, for example, because the AP signal is weak or the signal is good.
  • the policy that is owned by the terminal can be implemented by pre-configuration or dynamic acquisition. In the embodiment of the present invention, the terminal has already owned the relevant policy.
  • Step 402 After receiving the information reported by the terminal, the WMS feeds back a confirmation message to the terminal.
  • Step 403 The WMS sends a WLAN offload information report message to the cellular network or the fixed network related network element, where the message includes information such as the link quality, the location of the terminal, and the network load of the AP/AC.
  • the parameters included in the message may be specifically selected as part or all of the above examples or extended for use.
  • the traffic control network element in the cellular network or the fixed network performs service decision of the service such as data offloading according to the WLAN offload information obtained from the WMS, for example, whether to perform flow migration.
  • the cellular network or fixed network traffic distribution control network element is a network element responsible for WLAN access, such as a gateway such as a P-GW, and how to make business decisions. These network elements and service decision methods are in standard organizations of the cellular network and the fixed network. There are protocol provisions, which are not described in detail in the embodiments of the present invention.
  • Step 405 The cellular network or the fixed network offload service control network element sends an acknowledgement message to the WMS. Assume that the flow migration condition is reached at this time, and the flow migration is triggered.
  • the message may also carry the information such as the flow migration execution information to the WMS.
  • the WMS can adjust the frequency and amplitude of the message reporting according to the flow migration execution information included in the message. The specific use can be configured by the operator according to the actual situation.
  • Step 406 The WMS may send a flow migration execution message to the AP/AC, and the message may also be directly sent to the AP/AC by the cellular network or the fixed network traffic distribution control network element.
  • FIG. 5 is a schematic diagram of a WLAN passive reporting WLAN for offloading services according to an embodiment of the present invention. Schematic diagram of the WLAN offloading information. The specific steps are as follows:
  • Step 501 The cellular network or the fixed network offloading service control network element sends a WLAN offloading information query request to the WMS, where the message may include a request for multiple information parameters, or may only include a request for a specific information parameter, for example, only requesting the user terminal.
  • the WLAN signal strength or location, etc. Step 502: After receiving the WLAN offload information query request message, the WMS checks whether there is any requested data in the local database in the fresh cycle; if the data in the local database is still in the fresh cycle Then, skip to step 507;
  • Step 503 The WMS sends a WLAN offloading information query request message to the AP/AC.
  • Step 504 If the information is only known by the terminal, the AP/AC sends the WLAN offload information query request message to the terminal. In the process, the WMS can also directly send the WLAN offload information query request message to the terminal;
  • Step 505 The terminal sends a WLAN offload information response message to the AP/AC; if the WMS directly requests the WLAN offload information to the terminal, the terminal sends a WLAN offload information response message to the WMS, and then proceeds to step 507;
  • Step 506 The AP/AC sends a WLAN offload information response message to the WMS.
  • Step 507 The WMS sends a WLAN offload information response message to the cellular network or the fixed network element.
  • Step 509 The cellular network or the fixed network offload service control network element sends an acknowledgement message to the WMS. Assume that the flow migration condition is reached at this time, and the flow migration is triggered.
  • the message may also carry the information such as the flow migration execution information to the WMS.
  • the WMS can adjust the frequency and amplitude of the message reporting according to the flow migration execution information included in the message. The specific use can be configured by the operator according to the actual situation.
  • Step 510 The WMS may send a flow migration execution message to the AP/AC, and the message may also be directly sent to the AP/AC by the cellular network or the fixed network traffic distribution control network element.
  • FIG. 6 is a schematic diagram of a structure of a WMS and a traffic distribution control network element according to an embodiment of the present invention.
  • a WMS offloading service control network element is set up
  • FIG. 7 is a WMS and a traffic distribution service according to an embodiment of the present invention.
  • Step 701 The AP/AC sends a WLAN offload information message to the WMS/offload service control network element, where the message includes information such as the link quality, the location of the terminal, and the network load of the AP/AC.
  • the parameters included in the message may be specifically selected as part or all of the above examples or extended for use.
  • the AP/AC can periodically report information to the WMS/heterogeneous network information acquisition module or according to the policy. When the conditions are reported in a certain policy, the message is reported to be triggered, for example, because the WLAN signal changes or the load is large. The dynamic information is reported.
  • the policy that is owned by the AP/AC can be implemented by pre-configuration or dynamic acquisition. In the embodiment of the present invention, the AP/AC has a related policy.
  • the offloading service control network element may be an AAA server, or a PCRF, or a P-GW; in the fixed network, the offloading service control network element may be a BRAS, SR, BNG or RACS.
  • Step 702 After receiving the information reported by the AP/AC, the WMS/heterogeneous network information obtaining module feeds back the acknowledgement message. In the actual operation, the step is an optional operation step.
  • the server By moving the server to provide WLAN offload information such as WLAN link quality, location information, and load status of the fixed or cellular network, which is beneficial to the network.
  • the traffic distribution or flow migration is accurately judged and triggered to ensure the correct execution of the traffic distribution and the flow migration, ensuring the user experience, and considering the large-scale centralized control, high reliability, and overall security required by the carrier-class WLAN.

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Abstract

本发明实施例公开了一种应用于WLAN的分流信息的获取方法和系统,该方法包括:在WLAN中部署移动服务器;所述移动服务器获取WLAN分流信息,并将所述WLAN分流信息发送至蜂窝网或固网的分流业务控制网元;所述分流业务控制网元依据所述分流信息执行分流业务决策。

Description

应用于 WLAN的分流信息的获取方法及系统
技术领域
本发明涉及通信领域, 具体而言, 涉及蜂窝网、 有线固网和 WLAN融合 且进行数据业务分流时提供一种应用于 WLAN 的分流信息的获取方法及系 统。
背景技术
目前, 随着通信网络的发展和多模终端的普遍使用, 各种数据业务也在 急剧地发展, 例如: 网页浏览、 在线游戏、 媒体点播等, 因此, 用户在数据 业务流量上有了爆炸式增长, 同时对业务体验方面的要求也越来越高, 以致 运营商面临的网络压力也越来越大, 比如由于多用户同时使用数据业务而造 成的网络拥塞问题日趋严重。
目前,具备低成本、高带宽、热点覆盖良好等特点的 WLAN( Wireless Local Access Network, 无线局域网)受到了运营商的青睐, 被广泛部署在酒店、 咖 啡厅、 机场、 会议中心以及大型公共场所, 为用户提供到 Internet以及自营业 务网络的接入。其从最早的使用胖 AP( Access Point,接入点)的家用级 WLAN, 慢慢发展到企业级、运营级的 WLAN,至今,釆用瘦 AP+AC( Access Controller ) 架构的 WLAN正在被部署和演进中。 其网络结构变得更为复杂, 网络规模更 为庞大, 为此对于其网络运营和管理需求问题也凸显出来。
WLAN为固定宽带接入和移动数据业务形成有效的补充: 对于固定宽带 接入, WLAN提供最后 100米接入的无线延伸, 大大方便用户的使用, 实现 固定宽带接入的移动化; 对于移动数据业务, WLAN当前作为 3G技术的替 代和补充手段, 在数据业务分流方面可以帮助运营商解决 3G 网络上数据流 量过大, 占用无线资源过多和网络负荷过重的问题。 WLAN与蜂窝网的融合, Wifi分流 (Offload)和流迁移等技术目前被广泛提出, 以便能够更加有效充分 的利用无线网络资源, 降低网络运营成本, 为移动用户提供丰富的业务以及 更好的使用体验。 对用户业务流进行 Wifi分流, 可以有效緩解蜂窝网络在热点区域的带宽 压力; 流迁移业务是更进一步的异构网络融合的应用, 例如: 终端同时通过 蜂窝网和 WLAN接入网络后 , 各种业务的 IP流分别在蜂窝网和 WLAN接入 中传输。 在某个时刻, 用户从蜂窝网接入发起了 FTP的下载业务。 由于 FTP 业务的开展, 蜂窝网接入的负荷加重, 为了保证其他业务的正常访问, 非对 话类视频业务以及 Web访问业务的 IP流将相继迁移到 WLAN。 当 FTP下载 业务结束后, 非对话类视频业务以及 Web访问业务的 IP流又迁移回蜂窝网。
目前, 相关技术也已经有提出使用 DSMIP或代理移动 IPv6协议来执行 流迁移, 但相关技术提出的方法只涉及具体流迁移的具体执行过程, 例如: 如图 1所示, 其揭示了 WLAN和蜂窝网融合示意图, 图中, WLAN接入 网络是由若干个 AP点连续覆盖组成, 可称为 WLAN热区。 WLAN终端可以 在 WLAN热区内自由移动切换并保持业务连续。 WLAN热区通过 AC接入蜂 窝核心网网元, 例如, 作为可信接入时, 接入 P-GW ( PDN GateWay, 分组 数据网络网关) ; 作为不可信接入时, 接入 ePDG(Evolved Packet Data Gateway)。 WLAN终端在 WLAN热区、 以及在 WLAN热区和蜂窝网络间的 移动性支持通过 WLAN网络的 AC以及蜂窝网的网元来提供。
图 1中 UE1 ( User Equipment, 用户设备)为 WLAN终端, 通过 WLAN 热区接入网络, 访问各种业务; UE2为 WLAN/蜂窝多模终端, 此终端可以同 时通过 WLAN和蜂窝接入网络, 也可以在 WLAN和蜂窝网络间平滑移动切 换。
而无论是 Wifi分流还是流迁移,正确的分流业务决策都是一个关键问题。 在应用过程中, 如果蜂窝网的网元无法知道用户所在的 WLAN 网络状态情 况, 例如, 用户的 WLAN链路质量很差, 或者在移动中已经离开了 WLAN 原来的覆盖范围, 这将导致分流和流迁移业务执行后业务流的丟失, 业务中 断, 降低用户体验。
发明内容
有鉴于此,本发明实施例提供一种应用于 WLAN的分流信息的获取方法 及系统, 以提供固网或蜂窝网关于用户终端所处的 WLAN链路质量、 位置信 息及负载情况等 WLAN分流信息,这样有利于网络对是否进行分流或流迁移 进行精准判断及触发, 保证了分流和流迁移的正确执行, 保障了用户体验, 并考虑了运营级 WLAN所需要的大规模集中管控、 高可靠、 整体安全。
一种应用于无线局域网 (WLAN ) 的分流信息的获取方法, 其包括: 在 WLAN中部署移动服务器;
所述移动服务器获取 WLAN分流信息, 并将所述 WLAN分流信息发送 至蜂窝网或固网的分流业务控制网元;
所述分流业务控制网元依据所述分流信息执行分流业务决策。
较佳的, 移动服务器从接入点 AP、 接入控制器 AC或者终端本身获取所 述 WLAN分流信息。
较佳的, 所述移动服务器获取所述 WLAN的分流信息包括:
所述移动服务器获取接入点 AP/接入控制器 AC主动上报的所述 WLAN 的分流信息; 或,
所述移动服务器获取终端主动上报的所述终端所处 WLAN的分流信息; 或,
所述移动服务器通过发送分流信息查询请求至接入点 AP/接入控制器 AC 或终端 , 以请求所述 WLAN分流信息。
较佳的, 所述 WLAN分流信息至少包括终端的媒体接入控制 MAC地址 信息、 前缀或 IP地址信息、 终端所连接的接入点 AP/接入控制器 AC信息、 安全上下文信息、 订阅信息、 服务质量 QoS策略信息、 分流策略信息、 链路 质量信息、所处位置信息及终端所连接的接入点 AP/接入控制器 AC的网络负 载情况信息中的一种。
较佳的, 蜂窝网的分流业务控制网元为验证 -授权和记账 AAA服务器、 策略控制功能实体 PCRF、 或分组数据网关 P-GW;
固网的分流业务控制网元为宽带远程接入服务器 BRAS、业务路由器 SR、 宽带网络网关控制设备 BNG、 或资源接纳控制功能实体 RACS。 较佳的, 上述方法还包括:
当所述分流业务控制网元决策需要触发业务分流时, 通过所述移动服务 器或接通知所述 WLAN中的分流执行网元执行业务分流。
较佳的, 所述 WLAN中的分流执行网元为接入点 AP、 接入控制器 AC 或用户终端。
一种应用于无线局域网 (WLAN ) 的分流信息的获取系统, 包括蜂窝网 或固网的分流业务控制网元, 以及部署在 WLAN中的移动服务器, 其中, 所述移动服务器设置为, 获取 WLAN分流信息, 并将该 WLAN分流信 息发送至所述分流业务控制网元;
所述分流业务控制网元设置为,依据所述 WLAN分流信息执行分流业务 决策。
较佳的, 所述移动服务器是设置为从接入点 AP、 接入控制器 AC或者终 端本身获取 WLAN网络的 WLAN分流信息。
较佳的, 所述移动服务器是设置为以如下方式从接入点 AP、接入控制器
AC或者终端本身获取 WLAN网络的 WLAN分流信息:
获取接入点 AP/接入控制器 AC主动上报的 WLAN分流信息; 或, 获取终端主动上艮的该终端所处 WLAN网络的 WLAN分流信息; 或, 通过发送分流信息查询请求至接入点 AP/接入控制器 AC或终端,以请求 所述 WLAN分流信息。
较佳的, 所述 WLAN分流信息至少包括终端的媒体接入控制 MAC地址 信息、 前缀或 IP地址信息、 终端所连接的接入点 AP/接入控制器 AC信息、 安全上下文信息、 订阅信息、 服务质量 QoS策略信息、 分流策略信息、 链路 质量信息、所处位置信息及终端所连接的接入点 AP/接入控制器 AC的网络负 载情况信息中的一种。
较佳的, 蜂窝网的分流业务控制网元为验证 -授权和记账 AAA服务器、 策略控制功能实体 PCRF、 或分组数据网关 P-GW; 固网的分流业务控制网元为宽带远程接入服务器 BRAS、业务路由器 SR、 宽带网络网关控制设备 BNG、 或资源接纳控制功能实体 RACS。
较佳的, 所述分流业务控制网元还设置为:
当决策需要触发业务分流时, 通过所述移动服务器或直接通知所述
WLAN中的分流执行网元执行业务分流。
较佳的, 所述 WLAN中的分流执行网元为接入点 AP、 接入控制器 AC 或用户终端。
一种移动服务器, 所述移动服务器部署于无线局域网 (WLAN ) 中, 包 括获取单元, 其设置为, 获取 WLAN分流信息, 并将该 WLAN分流信息发 送至蜂窝网或固网的分流业务控制网元, 使得所述分流业务控制网元依据所 述 WLAN分流信息执行分流业务决策。
较佳的, 所述获取单元是设置为从接入点 AP、 接入控制器 AC或者终端 本身获取 WLAN网络的 WLAN分流信息。
较佳的, 所述获取单元是设置为以如下方式从接入点 AP、 接入控制器
AC或者终端本身获取 WLAN网络的 WLAN分流信息:
获取接入点 AP/接入控制器 AC主动上报的 WLAN分流信息; 或, 获取终端主动上艮的该终端所处 WLAN网络的 WLAN分流信息; 或, 通过发送分流信息查询请求至接入点 AP/接入控制器 AC或终端,以请求 所述 WLAN分流信息。
通过上述本发明的技术方案可以看出,本发明实施例通过在 WLAN运营 网络中新增移动服务器, 例如所述移动服务器为 WMS ( Wi-Fi Mobile Server, Wi-Fi移动服务器),通过该移动服务器以提供固网或蜂窝网关于用户终端所 处的 WLAN网络链路质量、 位置信息及负载情况等 WLAN分流信息, 这样 有利于网络对是否进行分流或流迁移进行精准判断及触发, 保证了分流和流 迁移的正确执行, 保障了用户体验, 并考虑了运营级 WLAN所需要的大规模 集中管控、 高可靠、 整体安全。 所述 WMS移动服务器具有以下具体功能: WMS移动服务器作为蜂窝网或固网和 WLAN网络间的控制面接口, 协 助融合网络的统一管理、 协助异构网络间的切换和流迁移;
WMS移动服务器协助终端实现在 WLAN网络中的安全快速接入和无缝 切换, 以解决终端在 WLAN网络中的定位、 漫游、 移动性支持等问题;
WMS移动服务器集中部署, 实现对用户状态信息的统一管理,可快速部 署, 简单运维。
附图概述
图 1是相关技术中的 WLAN热区和蜂窝融合网络结构示意图;
图 2是本发明实施例提供的 WLAN网络热区和异构网络融合时 WMS管 理架构示意图;
图 3是本发明实施例提供的 WLAN主动上报 (通过 AP/AC ) WLAN的 用于分流业务的 WLAN分流信息的流程示意图;
图 4是本发明实施例提供的 WLAN主动上报 (通过终端本身 ) WLAN的 用于分流业务的 WLAN分流信息的流程示意图;
图 5是本发明实施例提供的 WLAN被动上报 WLAN网络用于分流业务 的 WLAN分流信息的流程示意图;
图 6是本发明实施例提供的 WMS与分流业务控制网元合设架构示意图。 图 7是本发明实施例提供的 WMS与分流业务控制网元合设的流程示意 图。
本发明目的的实现、 功能特点及优异效果, 下面将结合具体实施例以及 附图做进一步的说明。
本发明的较佳实施方式
下面结合附图和具体实施例对本发明所述技术方案作进一步的详细描 述, 以使本领域的技术人员可以更好的理解本发明并能予以实施, 但所举实 施例不作为对本发明的限定。 本发明实施例提供了一种应用于 WLAN的分流业务信息的获取方法,其 包括如下步骤:
501、 在 WLAN中部署移动服务器;
502、 移动服务器获取 WLAN分流信息, 并将该信息发送至蜂窝网或固 网的分流业务控制网元;
S03、 分流业务控制网元依据所述 WLAN分流信息执行分流业务。
具体设计时, 所述移动服务器可以单独进行部署, 也可以将其与蜂窝网 或固网的分流业务控制网元合设。
在所述步骤 S02中, 移动服务器可以从接入点 AP、 接入控制器 AC或者 终端本身获取 WLAN网络的 WLAN分流信息。
例如:移动服务器从接入点 AP、接入控制器 AC或者终端本身获取 WLAN 网络的 WLAN分流信息的方式为:
I)接入点 AP/接入控制器 AC主动上报 WLAN网络的 WLAN分流信息; 或,
(2)终端主动上 ^艮其所处 WLAN网络的 WLAN分流信息; 或,
(3)移动服务器通过发送分流信息查询请求至接入点 AP/接入控制器 AC 或终端, 以请求 WLAN分流信息。 在该实施方式中, 蜂窝网或固网的分流业 务控制网元发送分流信息查询请求给移动服务器, 然后再由移动服务器来决 定是直接回复信息,还是向接入点 AP/接入控制器 AC或终端发送分流信息查 询请求。
所述移动服务器可以依据 WLAN的情况进行设置,依据本发明的一实施 例, 例如所述移动服务器为 WMS ( Wi-Fi Mobile Server, Wi-Fi移动服务器) 移动服务器,是一种集中式的管理方式,通过 AP ( Access Point,接入点)/AC ( Access Controller, 接入控制器)等网元的汇报, 存储维护用户终端的上下 文信息, 所述 WLAN分流信息至少包括终端的媒体接入控制 MAC ( Media Access Control, 媒体接入控制)地址信息、 前缀或 IP地址信息、 其所连接的 接入点 AP/接入控制器 AC信息、安全上下文信息、订阅信息、服务质量 QoS 策略信息、 分流策略信息、 链路质量信息、 所处位置信息及其所连接的接入 点 AP/接入控制器 AC的网络负载情况信息中的一种。
在所述步骤 S02或 S03中, 蜂窝网的分流业务控制网元为 3GPP验证-授 权和己贝长 AAA( Authentication ¾ Authorization、 Accounting,验证 -4受权和 "i己贝长) 服务器、 策略控制功能实体 PCRF ( Policy and Charging Rule Function, 策略控 制功能实体)、 或分组数据网关 P-GW ( Packet data network gateway , 分组数 据网关) ;
固网的分流业务控制网元为宽带远程接入服务器 BRAS ( Broadband Remote Access Server,宽带远程接入服务器)、业务路由器 SR( Service Router, 业务路由器) 、 宽带网络网关控制设备 BNG ( Broadband network gateway, 宽带网络网关控制设备) 、 或资源接纳控制功能实体 RACS ( Resource and Admission Control Function, 资源接纳控制功能) 。
在所述步骤 S03中, 所述蜂窝网或固网的分流业务控制网元具体如何进 行业务决策, 这些网元及业务决策方法在蜂窝网及固网相应的标准组织均有 协议规定, 在本发明实施例中不做详细说明。
相应地,本发明实施例还提供了一种应用于 WLAN网络的分流业务信息 的获取系统, 如图 2所示, 其包括蜂窝网或固网的分流业务控制网元, 以及 在 WLAN网络中还部署移动服务器, 其中,
移动服务器, 设置为获取 WLAN分流信息, 并将该 WLAN分流信息发 送至蜂窝网或固网的分流业务控制网元;
蜂窝网或固网的分流业务控制网元,设置为依据所述 WLAN分流信息执 行分流业务。
具体设计时, 所述移动服务器可以单独进行部署, 也可以将其与蜂窝网 或固网的分流业务控制网元合设。
优选实施方式下, 移动服务器可以从接入点 AP、 接入控制器 AC或者终 端本身获取 WLAN分流信息。
例如,移动服务器从接入点 AP、接入控制器 AC或者终端本身获取 WLAN 的 WLAN分流信息的方式为:
( 1 )接入点 AP/接入控制器 AC主动上报的 WLAN分流信息; 或, ( 2 )终端主动上报其所处 WLAN的 WLAN分流信息; 或,
( 3 )移动服务器通过发送分流信息查询请求至接入点 AP/接入控制器 AC或终端, 以请求 WLAN分流信息。 在该实施方式中, 蜂窝网或固网的分 流业务控制网元发送分流信息查询请求给移动服务器, 然后再由移动服务器 来决定是直接回复信息,还是向接入点 AP/接入控制器 AC或终端发送分流信 息查询请求。
一种实施方式下, 所述移动服务器为 WMS ( Wi-Fi Mobile Server, Wi-Fi 移动服务器)移动服务器,是一种集中式的管理方式,通过 AP ( Access Point, 接入点) /AC ( Access Controller, 接入控制器)等网元的汇报, 存储维护用 户终端的上下文信息, 所述 WLAN分流信息至少包括终端的媒体接入控制 MAC ( Media Access Control,媒体接入控制)地址信息、前缀或 IP地址信息、 其所连接的接入点 AP/接入控制器 AC信息、安全上下文信息、订阅信息、服 务质量 QoS策略信息、 分流策略信息、 链路质量信息、 所处位置信息及其所 连接的接入点 AP/接入控制器 AC的网络负载情况信息中的一种。
蜂窝网的分流业务控制网元为验证 -授权和记账 AAA服务器、 策略控制 功能实体 PCRF、 或分组数据网关 P-GW;
固网的分流业务控制网元为宽带远程接入服务器 BRAS、业务路由器 SR、 宽带网络网关控制设备 BNG、 或资源接纳控制功能实体 RACS。
本发明实施例还提供了一种移动服务器, 部署于 WLAN中, 包括获取模 块, 设置为获取 WLAN分流信息, 并将该 WLAN分流信息发送至蜂窝网或 固网的分流业务控制网元,使得所述分流业务控制网元依据所述 WLAN分流 信息执行分流业务决策。
实施例 1
如图 3所示, 其为本发明实施例提供的 WLAN主动上报(通过 AP/AC ) WLAN的用于分流业务的 WLAN分流信息的流程示意图,该实施例由 AC/AP 向 WMS进行 WLAN分流信息的上报。 在釆用瘦 AP+AC的 WLAN架构中, 由 AC实现相关信息的上报, 在没有部署 AC的场景下, 可由胖 AP来执行相 关信息上 具体步骤如下:
步骤 301 : AP/AC向 WMS发送 WLAN分流信息上报消息, 该消息中包 含例如链路质量、终端所处位置及 AP/AC的网络负载等信息,在具体使用时, 或全部或再进行扩展使用。 AP/AC可釆取定期向 WMS进行 WLAN分流信息 上报或根据策略, 当符合某一 WLAN分流信息上报策略中的上报条件时, 触 发消息上报, 例如由于 WLAN信号变化或负荷较大时, 触发 WLAN分流信 息上报。 值得注意的是, AP/AC中所拥有的策略可以通过预先配置或动态获 得等实现, 本发明实施例中假设 AP/AC已经设置有 WLAN分流信息的上报 策略。
步骤 302: WMS收到 AP/AC上报信息后, 反馈确认消息;
步骤 303: WMS向蜂窝网或固网相关网元发送 WLAN分流信息上报消 息,该消息中包含例如链路质量、终端所处位置及 AP/AC的网络负载等信息, 在具体使用时, 可根据具体情况, 该消息中所包含的参数可以具体选定为上 述例子中的部分或全部或再进行扩展使用。
步骤 304: 蜂窝网或固网内相关网元根据从 WMS获得的 WLAN分流信 息来进行数据分流等业务的业务决策, 例如, 是否进行流迁移。
蜂窝网或固网分流业务控制网元为负责 WLAN接入的网元, 例如 P-GW 等网关, 以及如何进行业务决策, 这些网元及业务决策方法在蜂窝网及固网 相应的标准组织均有协议规定, 在本发明实施例中不做详细说明。
步骤 305:蜂窝网或固网分流业务控制网元向 WMS发送确认消息。假设 此时流迁移条件已达到, 流迁移被触发, 也可在该消息中携带诸如流迁移执 行信息给 WMS, WMS根据此消息中包含的流迁移执行信息可以进行消息上 报频率及幅值的调整, 具体使用可根据实际情况由运营商进行配置。
步骤 306: WMS可向 AP/AC下达流迁移执行消息, 该消息也可以由蜂 窝网或固网分流业务控制网元直接下达给 AP/AC。
实施例 2
图 4是本发明实施例提供的 WLAN主动上报 (通过终端本身) WLAN的 用于分流业务的 WLAN分流信息的流程示意图。 其与实施例 1 的区别是, WLAN的用于分流业务的 WLAN分流信息直接由终端进行上 从而可以让 WMS获得与终端相关的更精确的信息, 具体步骤如下:
步骤 401 : 终端向 WMS发送 WLAN分流信息上报消息, 该消息中包含 例如链路质量、 终端所处位置等信息, 在具体使用时, 可根据具体情况, 该 消息中所包含的参数可以具体选定为上述例子中的部分或全部或再进行扩展 使用。 终端可釆取定期向 WMS进行信息上报或根据策略, 当符合某一策略 中的上报条件, 再触发消息上报, 实现例如由于 AP信号较弱或信号很好等 触发的动态信息上报。 注: 终端中所拥有的策略可以通过预先配置或动态获 得等实现, 本发明实施例中 H没终端已经拥有相关策略。
步骤 402: WMS收到终端上报信息后, 向终端反馈确认消息;
步骤 403: WMS向蜂窝网或固网相关网元发送 WLAN分流信息上报消 息,该消息中包含例如链路质量、终端所处位置及 AP/AC的网络负载等信息, 在具体使用时, 可根据具体情况, 该消息中所包含的参数可以具体选定为上 述例子中的部分或全部或再进行扩展使用。
步骤 404:蜂窝网或固网内分流业务控制网元根据从 WMS获得的 WLAN 分流信息来进行数据分流等业务的业务决策, 例如, 是否进行流迁移。
蜂窝网或固网分流业务控制网元为负责 WLAN接入的网元, 例如 P-GW 等网关, 以及如何进行业务决策, 这些网元及业务决策方法在蜂窝网及固网 相应的标准组织均有协议规定, 在本发明实施例中不做详细说明。
步骤 405:蜂窝网或固网分流业务控制网元向 WMS发送确认消息。假设 此时流迁移条件已达到, 流迁移被触发, 也可在该消息中携带诸如流迁移执 行信息给 WMS, WMS根据此消息中包含的流迁移执行信息可以进行消息上 报频率及幅值的调整, 具体使用可根据实际情况由运营商进行配置。
步骤 406: WMS可向 AP/AC下达流迁移执行消息, 该消息也可以由蜂 窝网或固网分流业务控制网元直接下达给 AP/AC。
实施例 3
图 5是本发明实施例提供的 WLAN被动上报 WLAN用于分流业务的 WLAN分流信息的流程示意图, 具体步骤如下:
步骤 501: 蜂窝网或固网分流业务控制网元向 WMS发送 WLAN分流信 息查询请求, 该消息可以包括多种信息参数的请求, 也可以只包含某一特定 信息参数的请求, 例如只请求用户终端所在 WLAN信号强度或所处位置等; 步骤 502: 收到 WLAN分流信息查询请求消息后, WMS检查本地数据 库中是否有还在新鲜周期内的被请求数据; 如果本地数据库中的数据还在新 鲜周期内, 则跳至步骤 507;
步骤 503: WMS向 AP/AC发送 WLAN分流信息查询请求消息; 步骤 504: 如涉及只有终端所知的信息, 则 AP/AC向终端发送 WLAN分 流信息查询请求消息; 除此之外, 在实际操作过程中, 也可以由 WMS直接 向终端发送 WLAN分流信息查询请求消息;
步骤 505:终端向 AP/AC发送 WLAN分流信息响应消息; 如在由 WMS 直接向终端请求 WLAN分流信息的情况之下, 则终端向 WMS发送 WLAN 分流信息响应消息后跳至步骤 507;
步骤 506: AP/AC向 WMS发送 WLAN分流信息响应消息;
步骤 507: WMS向蜂窝网或固网网元发送 WLAN分流信息响应消息; 步骤 508: 蜂窝网或固网内相关网元根据从 WMS获得的 WLAN分流信 息来进行数据分流等业务的业务决策, 例如, 是否进行流迁移。
步骤 509:蜂窝网或固网分流业务控制网元向 WMS发送确认消息。假设 此时流迁移条件已达到, 流迁移被触发, 也可在该消息中携带诸如流迁移执 行信息给 WMS, WMS根据此消息中包含的流迁移执行信息可以进行消息上 报频率及幅值的调整, 具体使用可根据实际情况由运营商进行配置。
步骤 510: WMS可向 AP/AC下达流迁移执行消息, 该消息也可以由蜂 窝网或固网分流业务控制网元直接下达给 AP/AC。
图 6是本发明一实施例提供的 WMS与分流业务控制网元合设架构示意 图, 在该实施例中, WMS分流业务控制网元合设, 图 7是本发明实施例提供 的 WMS与分流业务控制网元合设的流程示意图, 在该实施例中, 只描述了 WLAN网元主动上报信息的情况, 被动获取情况与之前实施例步骤类似, 区 别仅在于 WMS与分流业务控制网元合设, 省去了 WMS再将信息上报的过 程。 具体步骤如下: 步骤 701: AP/AC向 WMS/分流业务控制网元发送 WLAN分流信息上才艮 消息, 该消息中包含例如链路质量、 终端所处位置及 AP/AC的网络负载等信 息, 在具体使用时, 可根据具体情况, 该消息中所包含的参数可以具体选定 为上述例子中的部分或全部或再进行扩展使用。 AP/AC可釆取定期向 WMS/ 异构网络信息获取模块进行信息上报或根据策略, 当符合某一策略中的上报 条件, 再触发消息上报, 实现例如由于 WLAN信号变化或负荷较大等触发的 动态信息上报。 注: AP/AC中所拥有的策略可以通过预先配置或动态获得等 实现, 本发明实施例中假设 AP/AC已经拥有相关策略。
在蜂窝网中,分流业务控制网元可以为 AAA服务器,或 PCRF,或 P-GW; 在固网中, 分流业务控制网元可以为 BRAS, SR, BNG或 RACS。
步骤 702: WMS/异构网络信息获取模块收到 AP/AC上报信息后, 反馈 确认消息, 在实际操作过程中, 该步骤为可选操作步骤。
以上所述仅为本发明的优选实施例, 并非因此限制本发明的专利范围, 凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换, 或直接 或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 所述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的各模块 /单元可以釆用 硬件的形式实现, 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
工业实用性
通过移动服务器以提供固网或蜂窝网关于用户终端所处的 WLAN链路 质量、位置信息及负载情况等 WLAN分流信息, 这样有利于网络对是否进行 分流或流迁移进行精准判断及触发, 保证了分流和流迁移的正确执行, 保障 了用户体验, 并考虑了运营级 WLAN所需要的大规模集中管控、 高可靠、 整 体安全。

Claims

权 利 要 求 书
1、 一种应用于无线局域网 (WLAN ) 的分流信息的获取方法, 其包括: 在 WLAN中部署移动服务器;
所述移动服务器获取 WLAN分流信息, 并将所述 WLAN分流信息发送 至蜂窝网或固网的分流业务控制网元;
所述分流业务控制网元依据所述分流信息执行分流业务决策。
2、 如权利要求 1所述的方法, 其中, 移动服务器从接入点 AP、 接入控 制器 AC或者终端本身获取所述 WLAN分流信息。
3、 如权利要求 2所述的方法, 其中, 所述移动服务器获取所述 WLAN 的分流信息包括:
所述移动服务器获取接入点 AP/接入控制器 AC主动上报的所述 WLAN 的分流信息; 或,
所述移动服务器获取终端主动上报的所述终端所处 WLAN的分流信息; 或,
所述移动服务器通过发送分流信息查询请求至接入点 AP/接入控制器 AC 或终端 , 以请求所述 WLAN分流信息。
4、 如权利要求 1所述的方法, 其中, 所述 WLAN分流信息至少包括终 端的媒体接入控制 MAC地址信息、 前缀或 IP地址信息、 终端所连接的接入 点 AP/接入控制器 AC信息、 安全上下文信息、 订阅信息、 服务质量 QoS策 略信息、 分流策略信息、 链路质量信息、 所处位置信息及终端所连接的接入 点 AP/接入控制器 AC的网络负载情况信息中的一种。
5、 如权利要求 1所述的方法, 其中, 蜂窝网的分流业务控制网元为验证 -授权和记账 AAA服务器、策略控制功能实体 PCRF、或分组数据网关 P-GW; 固网的分流业务控制网元为宽带远程接入服务器 BRAS、业务路由器 SR、 宽带网络网关控制设备 BNG、 或资源接纳控制功能实体 RACS。
6、 如权利要求 1-5任一项所述的方法, 其还包括:
当所述分流业务控制网元决策需要触发业务分流时, 通过所述移动服务 器或直接通知所述 WLAN中的分流执行网元执行业务分流。
7、 如权利要求 6所述的方法, 其中, 所述 WLAN中的分流执行网元为 接入点 AP、 接入控制器 AC或用户终端。
8、 一种应用于无线局域网 (WLAN )的分流信息的获取系统, 包括蜂窝 网或固网的分流业务控制网元, 以及部署在 WLAN中的移动服务器, 其中, 所述移动服务器设置为, 获取 WLAN分流信息, 并将该 WLAN分流信 息发送至所述分流业务控制网元;
所述分流业务控制网元设置为,依据所述 WLAN分流信息执行分流业务 决策。
9、 如权利要求 8所述的系统, 其中, 所述移动服务器是设置为从接入点 AP、 接入控制器 AC或者终端本身获取 WLAN网络的 WLAN分流信息。
10、 如权利要求 9所述的系统, 其中, 所述移动服务器是设置为以如下 方式从接入点 AP、 接入控制器 AC或者终端本身获取 WLAN网络的 WLAN 分流信息:
获取接入点 AP/接入控制器 AC主动上报的 WLAN分流信息; 或, 获取终端主动上艮的该终端所处 WLAN网络的 WLAN分流信息; 或, 通过发送分流信息查询请求至接入点 AP/接入控制器 AC或终端,以请求 所述 WLAN分流信息。
11、 如权利要求 8所述的系统, 其中, 所述 WLAN分流信息至少包括终 端的媒体接入控制 MAC地址信息、 前缀或 IP地址信息、 终端所连接的接入 点 AP/接入控制器 AC信息、 安全上下文信息、 订阅信息、 服务质量 QoS策 略信息、 分流策略信息、 链路质量信息、 所处位置信息及终端所连接的接入 点 AP/接入控制器 AC的网络负载情况信息中的一种。
12、 如权利要求 8所述的系统, 其中, 蜂窝网的分流业务控制网元为验 证 -授权和记账 AAA服务器、 策略控制功能实体 PCRF、 或分组数据网关 P-GW;
固网的分流业务控制网元为宽带远程接入服务器 BRAS、业务路由器 SR、 宽带网络网关控制设备 BNG、 或资源接纳控制功能实体 RACS。
13、 如权利要求 7-12任一项所述的系统, 其中, 所述分流业务控制网元 还设置为:
当决策需要触发业务分流时, 通过所述移动服务器或直接通知所述 WLAN中的分流执行网元执行业务分流。
14、 如权利要求 13所述的系统, 其中, 所述 WLAN中的分流执行网元 为接入点 AP、 接入控制器 AC或用户终端。
15、 一种移动服务器, 所述移动服务器部署于无线局域网 (WLAN )中, 包括获取单元, 其设置为, 获取 WLAN分流信息, 并将该 WLAN分流信息 发送至蜂窝网或固网的分流业务控制网元, 使得所述分流业务控制网元依据 所述 WLAN分流信息执行分流业务决策。
16、 如权利要求 15所述的移动服务器, 其中, 所述获取单元是设置为从 接入点 AP、 接入控制器 AC或者终端本身获取 WLAN网络的 WLAN分流信 息。
17、 如权利要求 16所述的移动服务器, 其中, 所述获取单元是设置为以 如下方式从接入点 AP、 接入控制器 AC或者终端本身获取 WLAN 网络的 WLAN分流信息:
获取接入点 AP/接入控制器 AC主动上报的 WLAN分流信息; 或, 获取终端主动上艮的该终端所处 WLAN网络的 WLAN分流信息; 或, 通过发送分流信息查询请求至接入点 AP/接入控制器 AC或终端,以请求 所述 WLAN分流信息。
18、 如权利要求 15所述的移动服务器, 其中, 所述 WLAN分流信息至 少包括终端的媒体接入控制 MAC地址信息、 前缀或 IP地址信息、 终端所连 接的接入点 AP/接入控制器 AC信息、安全上下文信息、订阅信息、服务质量 QoS策略信息、 分流策略信息、 链路质量信息、 所处位置信息及终端所连接 的接入点 AP/接入控制器 AC的网络负载情况信息中的一种。
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