WO2013000325A1 - Bbf网络地址分配和策略执行的方法及系统 - Google Patents

Bbf网络地址分配和策略执行的方法及系统 Download PDF

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Publication number
WO2013000325A1
WO2013000325A1 PCT/CN2012/074294 CN2012074294W WO2013000325A1 WO 2013000325 A1 WO2013000325 A1 WO 2013000325A1 CN 2012074294 W CN2012074294 W CN 2012074294W WO 2013000325 A1 WO2013000325 A1 WO 2013000325A1
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Prior art keywords
user terminal
address
bbf network
ipv6 prefix
authentication
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PCT/CN2012/074294
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English (en)
French (fr)
Inventor
尤建洁
宗在峰
金利忠
范亮
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中兴通讯股份有限公司
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Publication of WO2013000325A1 publication Critical patent/WO2013000325A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/50Address allocation
    • H04L61/5007Internet protocol [IP] addresses
    • H04L61/503Internet protocol [IP] addresses using an authentication, authorisation and accounting [AAA] protocol, e.g. remote authentication dial-in user service [RADIUS] or Diameter

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and system for address allocation and policy execution of a user in a Broadband Forum (BBF) network.
  • BBF Broadband Forum
  • multi-mode user terminals can realize seamless connection between different types of wireless access networks, such as cellular universal mobile communication system (UMTS, Universal Mobile Telecommunications System), enhanced data rate GSM evolution technology (EDGE, Enhanced Data Rate). For GSM Evolution), a seamless connection between General Packet Radio Service (GPRS) and Wireless Local Area Networks (WLAN) in IEEE 802.11.
  • UMTS Universal Mobile Telecommunications System
  • EDGE enhanced Data rate GSM evolution technology
  • GPRS General Packet Radio Service
  • WLAN Wireless Local Area Networks
  • WLANs provide high data rates in a small range of homes and hotspots, while cellular networks offer greater flexibility and ubiquitous coverage, but at lower data rates; if combined with the advantages of both, users will Benefited from.
  • multi-mode user terminals use WLAN for data access and Voice over Internet Protocol (VoIP) applications, while also using overlapping cellular networks for voice calls or media access.
  • VoIP Voice over Internet Protocol
  • the research scenario includes user terminals accessing from the BBF network through RG (Residential Gateway) and accessing mobile or fixed network services. Due to the heterogeneity of the network, when the user terminal accesses the BBF network, the user There are differences in authentication, address allocation, and billing from ordinary BBF users.
  • RG Residential Gateway
  • the RG is authenticated first: RG authenticates with the Authentation Authorization Account (AAA) server of the BBF through the Broadband Network Gateway (BNG). After that, the DHCP v6 server assigns an IP v6 prefix to the RG via the BNG; the second is the authentication of the user terminal: At this time, the RG acts as an AAA client to interact with the BBF AAA server and the Home AAA server via the BNG to complete user authentication. After the user terminal is authenticated, a Router Solicitation (RS) message is sent to request an IPv6 address, and the RG replies with a Router Advertisement (RA) message, which includes an IPv6 prefix.
  • AAA Authentation Authorization Account
  • BNG Broadband Network Gateway
  • the user terminal After receiving the IPv6 prefix, the user terminal uses SLAAC (Stateless Address Auto Configuration) to generate an IPv6 address. After the user authentication and address assignment are completed, the RG sends the IP address of the user to the BNG to perform accounting information statistics and traffic statistics for the user terminal. Further, the BNG interacts with the BBF AAA server to bill the user.
  • SLAAC Stateless Address Auto Configuration
  • the user terminal can generate multiple IPv6 addresses after receiving the IPv6 prefix sent by the RG, and the RG sends an IPv6 address to the BNG after the user authentication succeeds (step 6 in Figure 1).
  • the terminal uses another IPv6 address, if the RG does not notify the BNG again in time, the BNG cannot identify the data packet sent from the user using another IPv6 address again.
  • the BBF network cannot sense the user, and cannot perform correct traffic statistics and accounting for the user. Summary of the invention
  • the main purpose of the present invention is to provide a method and a system for performing BBF network address allocation and policy enforcement.
  • the BBF network cannot sense the change of the user address. , technical problems that cannot perform correct quality of service policies and/or charging policies for users.
  • a broadband forum BBF network address allocation and policy enforcement method includes: after the home gateway RG assigns an IPv6 prefix to the user terminal, the RG sends the IPv6 prefix allocated to the user terminal to the broadband network gateway BNG;
  • the BNG performs a quality of service policy and/or a charging policy based on an IPv6 prefix assigned to the user terminal.
  • the quality of service policy includes at least one or more of the following: bandwidth control, priority setting; and the charging policy includes at least statistics of charging information.
  • the method further includes:
  • the RG performs authentication on the BBF network. After the RG passes the authentication on the BBF network, the BBF network assigns an IPv6 prefix to the RG. The user terminal authenticates on the BBF network.
  • the IPv6 prefix assigned by the RG to the user terminal is a subset of the IPv6 prefix assigned by the BBF network to the RG.
  • the embodiment of the present invention further provides a BBF network address allocation and policy execution system, where the system includes:
  • An RG authentication module configured to perform an authentication process of the RG on the BBF network
  • a first prefix allocation module configured to: after the RG passes the authentication on the BBF network, the BBF network allocates an IPv6 prefix to the RG;
  • a user authentication module configured to perform an authentication process of the user terminal in the BBF network
  • a second prefix allocation module configured to allocate, by the RG, an IPv6 prefix to the user terminal
  • a prefix notification module configured to notify, by the RG, an IPv6 prefix assigned to the user terminal
  • a policy execution module configured to perform, by the BNG, a quality of service policy and/or a charging policy based on an IPv6 prefix allocated to the user terminal.
  • the embodiment of the present invention further provides another method for BBF network address allocation and policy execution.
  • the RG detects a new IP address of the user terminal after detecting an IP address change of the user terminal. The address is sent to the BNG, and the BNG performs a quality of service policy and/or a charging policy according to the new IP address of the user terminal.
  • the quality of service policy includes at least one or more of the following: bandwidth control, priority setting; and the charging policy includes at least statistics of charging information.
  • the method further includes:
  • the RG performs authentication on the BBF network. After the RG passes the BBF network authentication, the BBF network assigns an IPv6 prefix to the RG.
  • the user terminal performs authentication on the BBF network. After the user terminal passes the BBF network authentication, the RG assigns an IPv6 prefix to the user terminal, and the user terminal generates an IPv6 address according to the assigned IPv6 prefix.
  • the embodiment of the present invention further provides another system for BBF network address allocation and policy execution, and the system includes:
  • An RG authentication module configured to perform an authentication process of the RG on the BBF network
  • a first prefix allocation module configured to: after the RG passes the authentication on the BBF network, the BBF network allocates an IPv6 prefix to the RG;
  • a user authentication module configured to perform an authentication process of the user terminal in the BBF network
  • a second prefix allocation module configured to allocate, by the RG, an IPv6 prefix to the user terminal
  • the address change detection module is configured to detect, by the RG, the IP address change of the user terminal, and the new address notification module is configured to send, by the RG, the new IP address of the user terminal to the BNG after detecting the change of the IP address of the user terminal;
  • the policy execution module is configured to perform, by the BNG, a quality of service policy and/or a charging policy according to the new IP address of the user terminal.
  • the RG sends the IPv6 prefix allocated to the user terminal to the BNG.
  • BBF AAA uses the IPv6 prefix assigned to the user terminal as the basis for charging; or is checked by RG. The address of the user terminal is changed, and the new IPv6 address is sent to the BNG in time. This prevents the user terminal from changing the address. Because the RG does not notify the RG, the BBF network cannot detect the user address change. Billing phenomenon. DRAWINGS
  • FIG. 2 is a flowchart of a method for address allocation and policy execution of a user in a BBF network according to Embodiment 1 of the present invention
  • FIG. 3 is a flowchart of a method for address allocation and policy execution of a user in a BBF network according to Embodiment 2 of the present invention
  • FIG. 4 is a schematic structural diagram of a system for address allocation and policy execution of a user in a BBF network according to Embodiment 3 of the present invention.
  • FIG. 5 is a schematic structural diagram of a system for address allocation and policy execution of a user in a BBF network according to Embodiment 4 of the present invention. detailed description
  • FIG. 2 is a flowchart of a method for performing address allocation and policy enforcement of a user in a BBF network according to Embodiment 1 of the present invention.
  • a routing type RG allocates an IPv6 prefix to a user terminal, and sends the prefix information to the user terminal.
  • the BNG performs billing information statistics or performs related policies on the user. The process includes the following steps:
  • Step 201 The RG performs authentication on the BBF network.
  • Step 202 After the RG passes the authentication, the IPv6 version of the dynamic host configuration protocol prefix delegation (DHCPv6 Prefix Delegation) message is sent to the BNG to request the IPv6 prefix, and the BNG forwards the request message to the DHCPv6 server, and the DHCPv6 server allocates the IPv6 prefix to the RG through the BNG.
  • DHCPv6 Prefix Delegation the IPv6 version of the dynamic host configuration protocol prefix delegation
  • the DHCPv6 can assign a short prefix to the RG to ensure that the RG can be a sub-prefix of the RG when assigning an IPv6 prefix to the user terminal.
  • Step 203 The user terminal accesses the BBF network and performs authentication.
  • the RG acts as an AAA client to interact with the BBF AAA server via BNG to complete user authentication. If the user terminal is a non-BBF user, the user's Home AAA service crying table 1 is required.
  • Step 204 After the user terminal passes the authentication, the router sends a route request Router Solicitation message to the RG, requesting the RG to allocate an IPv6 address.
  • Step 205 The RG returns a route broadcast Router Advertisement message to the user terminal, where the IPv6 prefix allocated to the user terminal is included.
  • the IPv6 prefix is a sub-prefix of the RG.
  • the user terminal uses the SLAAC (Stateless address auto configuration) method to generate an IPv6 address.
  • SLAAC Stateless address auto configuration
  • Step 206 The RG sends the IPv6 prefix allocated to the user terminal to the BNG, and the BNG performs a quality of service policy and/or a charging policy based on the IPv6 prefix allocated to the user terminal.
  • the RG can send the IPv6 prefix assigned to the user terminal to the BNG through a RADIUS-Accounting-Start message in the Remote Authentication Dial In User Service (RADIUS).
  • RADIUS-Accounting-Start message in the Remote Authentication Dial In User Service (RADIUS).
  • the BNG collects charging information such as user traffic that should be prefixed and sends it to the BBF AAA server, and the BBF AAA server performs charging based on the IPv6 prefix assigned to the user terminal.
  • BNG can also perform quality control such as bandwidth control and priority setting based on IPv6 prefix. Strategy.
  • the RG sends the IPv6 prefix allocated to the user terminal to the BNG, and the BBF AAA uses the IPv6 prefix allocated to the user terminal as a basis for policy execution, thereby avoiding the user terminal.
  • the address changes, because the RG does not notify the user in time, the BBF network cannot detect the change of the user address, and the correct traffic statistics and accounting cannot be performed for the user.
  • Example 2
  • FIG. 3 is a flowchart of another BBF network user address allocation and policy execution method according to Embodiment 2 of the present invention.
  • the RG is responsible for The address change of the user terminal is detected, and a new IPv6 address is sent to the BNG.
  • the process includes the following steps:
  • Step 301 The RG performs authentication on the BBF network.
  • the BNG participates in the RG authentication process, and sends an authentication request message from the RG to the BBF AAA server for authentication.
  • Step 302 After the RG passes the authentication, the DHCPv6 Prefix Delegation message is sent to the BNG, and the IPv6 prefix is requested.
  • the BNG forwards the request message to the DHCPv6 server, and the DHCPv6 server allocates an IPv6 prefix to the RG through the BNG.
  • Step 303 The user terminal accesses the BBF network and performs authentication.
  • the RG acts as an AAA client to interact with the BBF AAA server via BNG to complete user authentication. If the user terminal is a non-BBF user, the user's Home AAA service crying table 1 is required.
  • Step 304 After the user terminal passes the authentication, the router sends a route request Router Solicitation message to the RG, requesting the RG to allocate an IPv6 address.
  • Step 305 The RG returns a route broadcast Router Advertisement message to the user terminal, where the IPv6 prefix is allocated to the user terminal. After receiving the IPv6 prefix, the user terminal automatically configures the SLAAC mode to generate an IPv6 address by using a stateless address.
  • Step 306 The RG sends the IPv6 address of the user terminal to the BNG.
  • the RG can detect the IPv6 address of the user terminal through the Duplicate Address Detection (DAD) message sent by the user terminal, and send the message to the BNG through the RADIUS-Accounting-Start message.
  • the BNG collects information such as user traffic corresponding to the IPv6 address and sends it to the BBF AAA for charging reference.
  • Step 307 The user terminal generates a new IPv6 address based on application requirements or security reasons.
  • the RG may detect that the IPv6 address of the user terminal is changed by the address repeated detection DAD message sent by the user terminal. Since the RG can maintain the binding relationship between the MAC address of the user terminal and the corresponding IP address, when the IP address from the MAC address changes, the RG will update the binding relationship.
  • Step 309 The RG sends the new IPv6 address of the user terminal to the BNG, and the BNG performs the quality of service policy and/or the charging policy based on the new IPv6 address.
  • the BNG updates the binding relationship between the user identifier (for example, the username/international mobile identifier IMSI/MAC address) and the corresponding IP address, and collects the accounting information such as the traffic corresponding to the IPv6 address, and sends the information to the BBF AAA. Server, and quality of service policies such as bandwidth control and priority settings.
  • the user identifier for example, the username/international mobile identifier IMSI/MAC address
  • the accounting information such as the traffic corresponding to the IPv6 address
  • the RG is responsible for detecting the address change of the user terminal, and transmitting the new IPv6 address to the BNG in time, and the BNG can timely update the binding of the user identifier and the corresponding IP address.
  • the relationship is avoided, so that the BBF network cannot detect the change of the user address due to the RG not being notified in time, and the correct traffic statistics and charging cannot be performed for the user.
  • Example 3 This embodiment provides a system for address allocation and policy enforcement of a BBF network user based on Embodiment 1.
  • the system structure is as shown in FIG. 4, and the system 400 includes:
  • the RG authentication module 401 is configured to perform an authentication process of the RG in the BBF network
  • the first prefix allocation module 402 is configured to: after the RG passes the authentication in the BBF network, the BBF network allocates an IPv6 prefix to the RG;
  • the user authentication module 403 is configured to perform an authentication process of the user terminal in the BBF network.
  • a second prefix allocation module 404 configured to allocate, by the RG, an IPv6 prefix to the user terminal;
  • the IPv6 prefix allocated by the RG to the user terminal is a sub-prefix notification module 405 of the IPv6 prefix allocated by the BBF network to the RG, where the RG allocates Notifying the BNG of the IPv6 prefix of the user terminal;
  • the policy execution module 406 is configured to perform, by the BNG, a quality of service policy and/or a charging policy based on an IPv6 prefix allocated to the user terminal.
  • Example 4
  • This embodiment provides a system for BBF network user address allocation and policy execution based on Embodiment 2.
  • the system structure is as shown in FIG. 5, and the system includes:
  • the RG authentication module 501 is configured to perform an authentication process of the RG in the BBF network
  • the first prefix allocation module 502 is configured to: after the RG passes the authentication in the BBF network, the BBF network allocates an IPv6 prefix to the RG;
  • the user authentication module 503 is configured to perform an authentication process of the user terminal in the BBF network.
  • the second prefix allocation module 504 is configured to allocate an IPv6 prefix to the user terminal by the RG.
  • the address change detection module 505 is configured to detect, by the RG, the IP address change of the user terminal, and the new address notification module 506 is configured to: after detecting the change of the IP address of the user terminal, the RG sends the new IP address of the user terminal to the BNG;
  • the policy execution module 507 is configured to perform, by the BNG, the service quality according to the new IP address of the user terminal. Volume policy and / or billing strategy.
  • the functional modules or functional units included in the foregoing system embodiments are all configured to implement the steps in the foregoing method embodiments, and the functions can be directly implemented from the foregoing methods.
  • the function module or the execution unit that can be extracted or derived from the foregoing method embodiment should be included in the protection scope of the system embodiment of the present invention. To save space, no further details are provided herein.
  • the invention can avoid that after the user terminal address changes, the RG is not notified in time, resulting in
  • the BBF network cannot detect the change of the user address and cannot perform correct traffic statistics and accounting for the user.

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Abstract

本发明公开了一种BBF网络地址分配和策略执行的方法及系统,方案为:RG将分配给用户终端的IPv6前缀发送给BNG,BBFAAA以分配给用户终端的IPv6前缀作为计费的依据;或由RG负责检测用户终端的地址变化,并及时把新的IPv6地址发送给BNG。本发明能够避免当用户终端地址变化,由于RG未及时通知,导致BBF网络无法感知用户地址变化,无法对用户进行正确流量统计和计费的现象。

Description

BBF网络地址分配和策略执行的方法及系统 技术领域
本发明涉及通信领域,尤其涉及一种宽带论坛( Broadband Forum, BBF ) 网络中用户的地址分配和策略执行的方法及系统。 背景技术
随着网络技术的发展和用户对业务的需求,用户终端( User Equipment, UE )逐渐多模化, 可以选择在不同类型的接入网络接入, 以承载多样性的 业务。 不同的网络连接具有不同的特性和传输能力, 以便能够更好地满足 用户对业务多样的需求。 目前, 多模用户终端可以实现不同类型的无线访 问网络之间的无缝连接, 如蜂窝的通用移动通信系统 (UMTS , Universal Mobile Telecommunications System ) , 增强型数据速率 GSM 演进技术 ( EDGE , Enhanced Data Rate for GSM Evolution )、 通用分组无线服务技术 ( GPRS, General Packet Radio Service )与 IEEE 802.11中的无线局域网络 ( WLAN , Wireless Local Area Networks )之间的无缝连接。 WLAN可在小 范围的家庭和热点区域提供很高的数据速率, 而蜂窝网络可以提供更高的 灵活性和无处不在的覆盖, 但数据速率较低; 如果能够结合两者的优点, 用户将从中受益。在 WLAN访问点的覆盖范围内,多模用户终端利用 WLAN 进行数据访问和网络电话 ( VoIP , Voice over Internet Protocol ) 的应用, 同 时还能使用重叠的蜂窝网络, 进行语音呼叫或媒体访问。
目前, 国际性标准组织宽带论坛 BBF正在进行 FMC ( Fixed Mobile
Convergence, 固定移动融合) 的标准化工作, 研究的场景包括用户终端通 过 RG ( Residential Gateway, 家庭网关)从 BBF网络接入, 并访问移动或 固网的业务。 由于网络的异构性, 当用户终端在 BBF网络接入时, 在用户 认证、 地址分配及计费方面与普通 BBF用户存在差异。
如图 1所示, 在认证过程中, 首先是 RG的认证: RG通过宽带网络网 关( Broadband Network Gateway, BNG )与 BBF的认证授权计费( Authtication Authorization Account, AAA )服务器交互进行认证,通过认证后, DHCP v6 服务器经由 BNG给 RG分配 IP v6前缀; 其次是用户终端的认证: 此时 RG 作为 AAA客户端经由 BNG与 BBF AAA服务器、 归属网 Home AAA服务 器交互, 完成用户认证。 用户终端通过认证后, 发送路由请求 (Router Solicitation , RS ) 消息请求 IPv6 地址, RG 回复路由广播 ( Router Advertisement, RA ) 消息, 其中包含 IPv6前缀。 用户终端收到 IPv6前缀 后利用 SLAAC( Stateless Address Auto Configuration,无状态地址自动配置) 生成一个 IPv6地址。 完成用户认证和地址分配后, RG将用户的 IP地址发 送给 BNG, 以便对该用户终端进行计费信息统计和流量统计。 进一步地, BNG与 BBF AAA服务器交互, 以便对用户进行计费。
上述的流程中, 由于用户终端在收到 RG发给它的 IPv6前缀后可以生 成多个 IPv6地址, 而 RG在用户认证成功后发给 BNG的是一个 IPv6地址 (图 1步驟 6 ), 当用户终端使用其它 IPv6地址时, 若 RG没有及时再次通 知 BNG, 则 BNG无法再次识别来自该用户使用其它 IPv6地址发送的数据 包。 此时 BBF网络无法感知该用户, 也无法对该用户进行正确流量统计和 计费。 发明内容
有鉴于此, 本发明的主要目的在于提供一种 BBF网络地址分配和策略 执行的方法及系统, 用于解决用户终端对应多个 IPv6地址时, 由于 RG未 及时通知, BBF 网络无法感知用户地址变化, 无法对用户执行正确服务质 量策略和 /或计费策略的技术问题。
为达到上述目的, 本发明的技术方案是这样实现的: 一种宽带论坛 BBF网络地址分配和策略执行的方法, 该方法包括: 在家庭网关 RG给用户终端分配 IPv6前缀后, RG将分配给所述用户 终端的 IPv6前缀发送给宽带网络网关 BNG;
BNG基于分配给所述用户终端的 IPv6前缀执行服务质量策略和 /或计 费策略。
优选地, 所述服务质量策略至少包含以下一项或多项: 带宽控制、 优 先级设置; 所述计费策略至少包含计费信息的统计。
优选地, 在 RG给用户终端分配 IPv6前缀前, 所述方法还包括:
RG在 BBF网络进行认证, 在 RG在 BBF网络通过认证后 , BBF网络 给 RG分配 IPv6前缀; 用户终端在 BBF网络进行认证。
优选地, RG给用户终端分配的 IPv6前缀是 BBF网络给 RG分配的 IPv6 前缀的子集。
基于上述方法, 本发明实施例还提供一种 BBF网络地址分配和策略执 行的系统, 该系统包括:
RG认证模块, 用于执行 RG在 BBF网络的认证过程;
第一前缀分配模块,用于 RG在 BBF网络通过认证后, BBF网络给 RG 分配 IPv6前缀;
用户认证模块, 用于执行用户终端在 BBF网络的认证过程;
第二前缀分配模块, 用于 RG给用户终端分配 IPv6前缀;
前缀通知模块, 用于 RG将分配给所述用户终端的 IPv6 前缀通知给
BNG;
策略执行模块, 用于 BNG基于分配给所述用户终端的 IPv6前缀执行 服务质量策略和 /或计费策略。 本发明实施例还提供另一种 BBF网络地址分配和策略执行的方法, 该 方法中: RG检测到其下用户终端的 IP地址改变后, 将用户终端新的 IP地 址发送给 BNG, BNG根据该用户终端新的 IP地址执行服务质量策略和 /或 计费策略。
优选地, 所述服务质量策略至少包含以下一项或多项: 带宽控制、 优 先级设置; 所述计费策略至少包含计费信息的统计。
优选地, 在 RG检测其下的用户终端的 IP地址改变之前, 所述方法还 包括:
RG在 BBF网络进行认证, 在 RG在 BBF网络认证通过后 , BBF网络 给 RG分配 IPv6前缀;
用户终端在 BBF网络进行认证 , 在用户终端在 BBF网络认证通过后 , RG给用户终端分配的 IPv6前缀,用户终端根据所分配的 IPv6前缀生成 IPv6 地址。
基于上述方法, 本发明实施例还提供另一种 BBF网络地址分配和策略 执行的系统, 该系统包括:
RG认证模块, 用于执行 RG在 BBF网络的认证过程;
第一前缀分配模块,用于 RG在 BBF网络通过认证后, BBF网络给 RG 分配 IPv6前缀;
用户认证模块, 用于执行用户终端在 BBF网络的认证过程;
第二前缀分配模块, 用于 RG给用户终端分配 IPv6前缀;
地址变化检测模块, 用于 RG对用户终端的 IP地址变化进行检测; 新地址通知模块, 用于 RG在检测到用户终端的 IP地址改变后, 将用 户终端新的 IP地址发送给 BNG;
策略执行模块, 用于 BNG根据该用户终端新的 IP地址执行服务质量 策略和 /或计费策略。
本发明提供方案中, RG将分配给用户终端的 IPv6前缀发送给 BNG,
BBF AAA以分配给用户终端的 IPv6前缀作为计费的依据;或由 RG负责检 测用户终端的地址变化, 并及时把新的 IPv6地址发送给 BNG,从而避免了 当用户终端地址变化, 由于 RG未及时通知, 导致 BBF网络无法感知用户 地址变化, 无法对用户进行正确流量统计和计费的现象。 附图说明
图 1为现有技术经由 RG的用户终端认证流程图;
图 2为本发明实施例 1提供的一种 BBF网络中用户的地址分配和策略 执行的方法流程图;
图 3为本发明实施例 2提供的一种 BBF网络中用户的地址分配和策略 执行的方法流程图;
图 4为本发明实施例 3提供的一种 BBF网络中用户的地址分配和策略 执行的系统结构示意图;
图 5为本发明实施例 4提供的一种 BBF网络中用户的地址分配和策略 执行的系统结构示意图。 具体实施方式
为使本发明的目的、 技术方案和优点更加清楚明白, 以下举实施例并 参照附图, 对本发明进一步详细说明。
实施例 1
图 2为本发明实施例 1提供的一种 BBF网络中用户的地址分配和策略 执行的方法流程图, 该方法中, 由路由型的 RG给用户终端分配 IPv6前缀, 并将该前缀信息发送给 BNG, 以对该用户进行计费信息统计或执行相关策 略, 该流程包括以下步驟:
步驟 201、 RG在 BBF网络进行认证;
RG在 BBF网络进行认证过程中 , BNG参与 RG的认证过程, 并将来 自 RG的认证请求消息发送给 BBF AAA服务器进行认证。 步驟 202、 RG通过认证后, 向 BNG发送 IPv6版本的动态主机配置协 议前缀委派( DHCPv6 Prefix Delegation )消息, 请求 IPv6前缀, BNG将该 请求消息转发给 DHCPv6服务器, DHCPv6服务器通过 BNG给 RG分配 IPv6 前缀。
根据网络配置或 RG属性, DHCPv6可以给 RG分配短前缀, 以保证 RG在给用户终端分配 IPv6前缀时, 可以是 RG的子前缀。
步驟 203、 用户终端在 BBF网络接入, 并进行认证。
此时 RG作为 AAA客户端经由 BNG与 BBF AAA服务器交互, 完成 用户认证。 若该用户终端是非 BBF用户, 则需要该用户的 Home AAA服务 哭口表一。
步驟 204、用户终端通过认证后,发送路由请求 Router Solicitation消息 给 RG, 请求 RG为其分配 IPv6地址。
步驟 205、 RG回复路由广播 Router Advertisement消息给用户终端, 其 中包含分配给用户终端的 IPv6前缀。
具体地, 该 IPv6前缀是 RG的子前缀。 用户终端收到 IPv6前缀后利用 SLAAC ( Stateless address auto configuration, 无状态地址自动配置 )方式生 成 IPv6地址。
步驟 206、 RG将分配给用户终端的 IPv6前缀发送给 BNG, BNG基于 分配给所述用户终端的 IPv6前缀执行服务质量策略和 /或计费策略。
RG 可以通过远程用户拨号认证业务(Remote Authentication Dial In User Service, RADIUS )中的 RADIUS计费开始( RADIUS-Accounting- Start ) 消息发送所述分配给用户终端的 IPv6前缀给 BNG。
BNG收集对应该前缀的用户流量等计费信息发送给 BBF AAA服务器, BBF AAA服务器基于分配给用户终端的 IPv6前缀进行计费。
BNG还可基于 IPv6前缀执行带宽控制、 优先级设置等服务质量 Qos 策略。
该实施例提供的用户地址分配和计费的方法中, RG将分配给用户终端 的 IPv6前缀发送给 BNG, BBF AAA以分配给用户终端的 IPv6前缀作为策 略执行的依据,从而避免了当用户终端地址变化, 由于 RG未及时通知, 导 致 BBF网络无法感知用户地址变化, 无法对用户进行正确流量统计和计费 的情况出现。 实施例 2
图 3为本发明实施例 2提供的另一种 BBF网络用户地址分配和策略执 行的方法流程图, 该方法中, 用户终端利用 RG发给它的 IPv6前缀生成新 的 IPv6地址后, 由 RG负责检测用户终端的地址变化, 并把新的 IPv6地址 发送给 BNG。 该流程包括以下步驟:
步驟 301、 RG在 BBF网络进行认证;
RG在 BBF网络进行认证过程中 , BNG参与 RG的认证过程, 并将来 自 RG的认证请求消息发送给 BBF AAA服务器进行认证。
步驟 302、 RG通过认证后, 向 BNG发送 DHCPv6 Prefix Delegation消 息, 请求 IPv6前缀, BNG将该请求消息转发给 DHCPv6服务器, DHCPv6 服务器通过 BNG给 RG分配 IPv6前缀。
步驟 303、 用户终端在 BBF网络接入, 并进行认证。
此时 RG作为 AAA客户端经由 BNG与 BBF AAA服务器交互, 完成 用户认证, 若该用户终端是非 BBF用户, 则需要该用户的 Home AAA服务 哭口表一。
步驟 304、用户终端通过认证后,发送路由请求 Router Solicitation消息 给 RG, 请求 RG为其分配 IPv6地址。
步驟 305、 RG回复路由广播 Router Advertisement消息给用户终端, 其 中包含分配给用户终端的 IPv6前缀。 用户终端收到 IPv6前缀后利用无状态地址自动配置 SLAAC方式生成 IPv6地址。
步驟 306、 RG将用户终端的 IPv6地址发送给 BNG。
该步驟中, RG 可以通过用户终端发送的地址重复检测 (Duplicate Address Detection , DAD ) 消息检测到用户终端的 IPv6 地址, 并通过 RADIUS-Accounting-Start消息发送给 BNG。相应地, BNG收集对应该 IPv6 地址的用户流量等信息后发送给 BBF AAA作计费参考。
步驟 307、 用户终端基于应用需求或安全等原因生成新的 IPv6地址。 步驟 308、 RG检测到用户终端的 IPv6地址发生改变。
该步驟中, RG可以通过用户终端发送的地址重复检测 DAD消息检测 到用户终端的 IPv6地址发生改变。 由于在 RG可以维护用户终端的 MAC 地址与对应的 IP地址的绑定关系, 当来自该 MAC地址的 IP地址发生改变 时, RG将更新该绑定关系。
步驟 309、 RG将用户终端的新的 IPv6地址发送给 BNG, BNG基于新 的 IPv6地址执行服务质量策略和 /或计费策略。
该步驟中, BNG 更新用户标识 (例如: 用户名 /国际移动识别码 IMSI/MAC地址 )与对应的 IP地址的绑定关系, 并收集对应该 IPv6地址的 流量等计费信息后发送给 BBF AAA服务器, 以及执行带宽控制、优先级设 置等服务质量策略。
该实施例提供的用户地址分配和计费的方法中,由 RG负责检测用户终 端的地址变化, 并及时把新的 IPv6地址发送给 BNG, BNG能够及时更新 用户标识与对应的 IP地址的绑定关系, 从而避免了由于 RG未及时通知, 导致 BBF网络无法感知用户地址变化, 无法对用户进行正确流量统计和计 费的情况出现。 实施例 3 该实施例基于实施例 1提供一种 BBF网络用户的地址分配和策略执行 的系统, 该系统结构如图 4所示, 该系统 400包括:
RG认证模块 401 , 用于执行 RG在 BBF网络的认证过程;
第一前缀分配模块 402 , 用于 RG在 BBF网络通过认证后, BBF网络 给 RG分配 IPv6前缀;
用户认证模块 403 , 用于执行用户终端在 BBF网络的认证过程。
第二前缀分配模块 404, 用于 RG给用户终端分配 IPv6前缀; 所述 RG 给用户终端分配的 IPv6前缀是所述 BBF网络给 RG分配的 IPv6前缀的子 前缀通知模块 405, 用于 RG将分配给所述用户终端的 IPv6前缀通知 给 BNG;
策略执行模块 406,用于 BNG基于分配给所述用户终端的 IPv6前缀执 行服务质量策略和 /或计费策略。 实施例 4
该实施例基于实施例 2提供一种 BBF网络用户地址分配和策略执行的 系统, 该系统结构如图 5所示, 该系统包括:
RG认证模块 501 , 用于执行 RG在 BBF网络的认证过程;
第一前缀分配模块 502, 用于 RG在 BBF网络通过认证后, BBF网络 给 RG分配 IPv6前缀;
用户认证模块 503 , 用于执行用户终端在 BBF网络的认证过程。
第二前缀分配模块 504, 用于 RG给用户终端分配 IPv6前缀。
地址变化检测模块 505 , 用于 RG对用户终端的 IP地址变化进行检测; 新地址通知模块 506, 用于 RG在检测到用户终端的 IP地址改变后, 将用户终端新的 IP地址发送给 BNG;
策略执行模块 507,用于 BNG根据该用户终端新的 IP地址执行服务质 量策略和 /或计费策略。
由于上述系统实施例基于前述方法实施例实现, 因此上述系统实施例 中所包含的功能模块或功能单元都是为实现前述方法实施例中的步驟流程 而设, 其功能都可直接从前述方法实施例的步驟流程中导出, 任何能从前 述方法实施例中提取或导出的功能模块或执行单元都应当属于本发明系统 实施例的保护范围之内, 为节省篇幅, 此处不再赘述。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。 工业实用性
本发明能够避免当用户终端地址变化后, 由于 RG 未及时通知, 导致
BBF 网络无法感知用户地址变化, 无法对用户进行正确流量统计和计费的 现象。

Claims

权利要求书
1、 一种宽带论坛 BBF网络地址分配和策略执行的方法, 该方法包括: 在家庭网关 RG给用户终端分配 IPv6前缀后, RG将分配给所述用户 终端的 IPv6前缀发送给宽带网络网关 BNG;
BNG基于分配给所述用户终端的 IPv6前缀执行服务质量策略和 /或计 费策略。
2、 根据权利要求 1所述的方法, 其中, 所述服务质量策略至少包含以 下一项或多项: 带宽控制、 优先级设置; 所述计费策略至少包含计费信息 的统计。
3、 根据权利要求 1 所述的方法, 其中, 在 RG给用户终端分配 IPv6 前缀前, 所述方法还包括:
RG在 BBF网络进行认证, 在 RG在 BBF网络通过认证后 , BBF网络 给 RG分配 IPv6前缀; 用户终端在 BBF网络进行认证。
4、 根据权利要求 3所述的方法, 其中,
RG给用户终端分配的 IPv6前缀是 BBF网络给 RG分配的 IPv6前缀的 子集。
5、 一种 BBF网络地址分配和策略执行的系统 , 该系统包括:
RG认证模块, 设置为执行 RG在 BBF网络的认证过程;
第一前缀分配模块, 设置为 RG在 BBF网络通过认证后, BBF网络给
RG分配 IPv6前缀;
用户认证模块, 设置为执行用户终端在 BBF网络的认证过程; 第二前缀分配模块, 设置为 RG给用户终端分配 IPv6前缀;
前缀通知模块, 设置为 RG将分配给所述用户终端的 IPv6前缀通知给
BNG; 策略执行模块, 设置为 BNG基于分配给所述用户终端的 IPv6前缀执 行服务质量策略和 /或计费策略。
6、 根据权利要求 5所述的系统, 其中, 所述系统还包括:
所述 RG给用户终端分配的 IPv6前缀是所述 BBF网络给 RG分配的 IPv6前缀的子集。
7、 一种 BBF网络地址分配和策略执行的方法, 该方法包括:
RG检测到其下用户终端的 IP地址改变后, 将用户终端新的 IP地址发 送给 BNG, BNG根据该用户终端新的 IP地址执行服务质量策略和 /或计费 策略。
8、 根据权利要求 7述的方法, 其中, 所述服务质量策略至少包含以下 一项或多项: 带宽控制、 优先级设置; 所述计费策略至少包含计费信息的 统计。
9、 根据权利要求 7述的方法, 其中, 在 RG检测其下的用户终端的 IP 地址改变之前, 所述方法还包括:
RG在 BBF网络进行认证, 在 RG在 BBF网络认证通过后 , BBF网络 给 RG分配 IPv6前缀;
用户终端在 BBF网络进行认证 , 在用户终端在 BBF网络认证通过后 , RG给用户终端分配的 IPv6前缀,用户终端根据所分配的 IPv6前缀生成 IPv6 地址。
10、 一种 BBF网络地址分配和策略执行的系统 , 该系统包括:
RG认证模块, 设置为执行 RG在 BBF网络的认证过程;
第一前缀分配模块, 设置为 RG在 BBF网络通过认证后, BBF网络给 RG分配 IPv6前缀;
用户认证模块, 设置为执行用户终端在 BBF网络的认证过程; 第二前缀分配模块, 设置为 RG给用户终端分配 IPv6前缀; 地址变化检测模块, 设置为 RG对用户终端的 IP地址变化进行检测; 新地址通知模块, 设置为 RG在检测到用户终端的 IP地址改变后, 将 用户终端新的 IP地址发送给 BNG;
策略执行模块, 设置为 BNG根据该用户终端新的 IP地址执行服务质 量策略和 /或计费策略。
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