WO2013152640A1 - 地址分配方法及装置 - Google Patents

地址分配方法及装置 Download PDF

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Publication number
WO2013152640A1
WO2013152640A1 PCT/CN2013/071803 CN2013071803W WO2013152640A1 WO 2013152640 A1 WO2013152640 A1 WO 2013152640A1 CN 2013071803 W CN2013071803 W CN 2013071803W WO 2013152640 A1 WO2013152640 A1 WO 2013152640A1
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WO
WIPO (PCT)
Prior art keywords
address
fixed network
bng
gateway
sends
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PCT/CN2013/071803
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English (en)
French (fr)
Inventor
范亮
尤建洁
朱春晖
Original Assignee
中兴通讯股份有限公司
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Publication of WO2013152640A1 publication Critical patent/WO2013152640A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/18Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/10Network architectures or network communication protocols for network security for controlling access to devices or network resources
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/26Network addressing or numbering for mobility support

Definitions

  • the present invention relates to the field of communications, and in particular to an address allocation method and apparatus.
  • BACKGROUND With the development of network technologies and the demand for services by users, terminals are gradually multi-modeled, and access to different types of access networks can be selected to carry diverse services. Because different network connections have different characteristics and transmission capabilities, they can better meet the diverse needs of users.
  • Multimode terminals enable seamless connectivity between different types of wireless access networks, such as Cellular UMTS (Universal Mobile Telecommunications System) / EDGE (Enhanced Data Rate for GSM Evolution), Enhanced Data Rate GSM (Global System) For Mobile communication, Global Technology (GPRS), GPRS (General Packet Radio Service) and IEEE (Institute of Electrical and Electronics Engineers) 802.11 WLAN (Wireless Local Area Networks) , WLAN) connection.
  • 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.
  • multimode terminals use WLAN for data access and VoIP (VoIP over Internet Protocol) applications, while also using overlapping cellular networks for voice calls or media access.
  • BBF Broadband Forum, International Standards Organization Broadband Forum
  • 3GPP are working on the standardization of FMC (Fixed Mobile Convergence, fixed network and mobile network convergence), including 3GPP UE (User Equipment) through RG (Residential Gateway, residential gateway) authentication, address allocation, and policy control from BBF network access.
  • FMC Fixed Mobile Convergence, fixed network and mobile network convergence
  • 3GPP UE User Equipment
  • RG Real Gateway, residential gateway
  • the 3GPP UE initiates access authentication to the RG as the 802. lx client.
  • the RG acts as the 802.
  • the server initiates an authentication request.
  • the address request message initiated by the 3GPP UE requests an IP address from a PDN-GW (Packet Data Network Gateway) via a BNG (Broadband Network Gateway).
  • the S2a session is established between the BNG and the PDN-GW, and is implemented by a GTP (GPRS Tunneling Protocol, GPRS (General Packet Radio Service) tunneling protocol) or a Proxy Mobile Internet Protocol (PMIP) tunnel.
  • GTP GPRS Tunneling Protocol
  • GPRS General Packet Radio Service
  • PMIP Proxy Mobile Internet Protocol
  • BWAG BBF WLAN Access Gateway, BBF WLAN access). Gateway
  • Figure 1 the schematic diagram of the network structure after the introduction of BWAG is shown in Figure 1.
  • an address allocation method to at least solve the problem of how to introduce a fixed network access gateway in a network architecture in the related art.
  • an address allocation method including: after a user equipment UE of a mobile network accessing a fixed network succeeds in mobile network authentication, the fixed network access gateway receives an attach request message sent by the fixed network AAA.
  • the attach request message carries the subscription information of the UE; the fixed network access gateway sends the attach request message to the mobile network gateway, and creates a session with the mobile network gateway according to the subscription information.
  • the fixed network access gateway receives the IP address assigned by the mobile network gateway to the UE, and sends an attach success message to the fixed network AAA, where the attach success message carries the IP address.
  • the method further includes: the fixed network AAA acquiring the IP address from the attach success message; the fixed network AAA Sending the IP address to the UE.
  • the sending, by the fixed network AAA, the IP address to the UE the: the fixed network AAA sending an authentication success response message of the UE to the broadband network gateway device BNG, where the authentication success response message is sent
  • the IP address and the access mode of the UE are carried in the BNG; the BNG obtains the IP address from the authentication success response message, and sends the IP address to the UE.
  • the BNG sends the IP address to the UE, including: when the residential gateway RG is a bridge type, the BNG directly sends the IP address to the UE; or when the RG is a routing type
  • the BNG sends the IP address to the UE via the RG.
  • the BNG directly sends the IP address to the UE, where: the BNG receives an address request message initiated by the UE; and the BNG controls a MAC address according to a media access of the UE and/or The access mode sends the IP address to the UE.
  • the MAC address is obtained in the following manner: After the fixed network AAA sends the authentication success response message to the BNG, the BNG stores the MAC address.
  • the sending, by the NG, the IP address to the UE by the RG the method includes: the BNG sending the authentication success response message to the RG; and the RG from the authentication success response message Obtaining the IP address and transmitting to the UE.
  • the RG sends the IP address to the UE, where: the RG receives an address request message initiated by the UE; and the RG according to the MAC address and/or access mode of the UE The IP address is sent to the UE.
  • the MAC address is obtained in the following manner: After the BNG sends the authentication success response message to the RG, the RG stores the MAC address.
  • the method further includes: establishing a tunnel between the fixed network access gateway and the mobile network gateway.
  • the fixed network access gateway is separated from the BNG, and the fixed network access gateway has an interface with the fixed network AAA.
  • an address allocation apparatus which is disposed in a fixed network access gateway, and includes: a first receiving module, configured to be a user equipment UE of a mobile network accessed from a fixed network in a mobile network After the authentication succeeds, receiving an attach request message sent by the fixed network AAA, where the attach request message carries the subscription information of the UE, and the sending module is configured to send the attach request message to the mobile network gateway, according to the And the second receiving module is configured to receive an IP address assigned by the mobile network gateway to the UE, and send an attach success message to the fixed network AAA, where the attaching information is The success message carries the IP address.
  • the fixed network access gateway receives the attach request message from the fixed network AAA, creates a session with the mobile network gateway, receives the IP address assigned to the UE, and notifies the IP address to the IP address.
  • Fixed network AAA The method provided by the embodiment of the present invention clearly defines how to apply the fixed network access gateway after the introduction of the fixed network access gateway. In other words, the method provided by the embodiment of the present invention clearly defines the fixed network access.
  • the gateway participates in the specific process of assigning an IP address to the UE. In this example, consider the fixed network access gateway to the solid
  • the impact of the network AAA clearly indicates the flow of the signal flow between the fixed network access gateway and the fixed network AAA and the specific information transmitted.
  • FIG. 1 is a FMC architecture diagram according to the related art
  • FIG. 2 is a process flow diagram of an address allocation method according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of an address distribution apparatus according to an embodiment of the present invention
  • 4 is a processing flowchart of an address allocation method when the RG is a routing type according to an embodiment of the present invention
  • FIG. 1 is a FMC architecture diagram according to the related art
  • FIG. 2 is a process flow diagram of an address allocation method according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of an address distribution apparatus according to an embodiment of the present invention
  • 4 is a processing flowchart of an address allocation method when the RG is a routing type according to an embodiment of the present invention
  • FIG. 1 is a FMC architecture diagram according to the related art
  • FIG. 2 is a process flow diagram of an address allocation method according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of an address distribution apparatus according to an embodiment of
  • FIG. 5 is a processing flowchart of an address allocation method when the RG is a bridge type according to an embodiment of the present invention.
  • BEST MODE FOR CARRYING OUT THE INVENTION the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.
  • the reference to the fixed network access gateway can eliminate the need for large-scale upgrade of the BNG equipment and minimize the impact on the existing network.
  • how to apply after introducing the fixed network access gateway does not provide corresponding specifications, especially the impact on BNG and BBF AAA has not been considered.
  • an embodiment of the present invention provides an address allocation method, and the processing flow thereof is as shown in FIG. 2, and includes steps S202 to S206.
  • Step S202 After the UE of the mobile network accessing the fixed network is successfully authenticated by the mobile network, the fixed network access gateway receives the attach request message sent by the fixed network AAA, where the attach request message carries the subscription information of the UE.
  • Step S204 The fixed network access gateway sends an attach request message to the mobile network gateway, and creates a session with the mobile network gateway according to the subscription information.
  • Step S206 The fixed network access gateway receives the IP address assigned by the mobile network gateway to the UE, and sends an attach success message to the fixed network AAA, where the attach success message carries the IP address.
  • the fixed network access gateway receives the attach request message from the fixed network AAA, creates a session with the mobile network gateway, receives the IP address assigned to the UE, and notifies the IP address to the IP address.
  • Fixed network AAA The method provided by the embodiment of the present invention clearly defines how to apply the fixed network access gateway after the introduction of the fixed network access gateway. In other words, the method provided by the embodiment of the present invention clearly defines the fixed network access.
  • the gateway participates in the specific process of assigning an IP address to the UE. In this example, considering the impact of the fixed network access gateway on the fixed network AAA, the flow direction of the signal flow between the fixed network access gateway and the fixed network AAA and the specific information of the transmission are clearly indicated.
  • the fixed network access gateway sends an attach success message to the fixed network AAA in step S206.
  • the fixed network AAA can obtain an IP address from the attach success message, and then the IP address. Send to the UE.
  • the UE receives the IP address assigned by the mobile network gateway, and the entire address allocation process ends. Considering the cheapness of the description, the IP addresses assigned to the UE by the mobile network gateway are referred to as IP addresses.
  • the fixed network AAA sends the IP address to the UE, and the message transmitted between the fixed network AAA and the UE can be used as a carrier for IP address transmission.
  • the UE's authentication success response message is preferably used.
  • the fixed network AAA sends an authentication success response message of the UE to the BNG, where the authentication success response message carries the IP address of the UE and the access mode.
  • the BNG obtains an IP address from the above authentication success response message, and sends the IP address to the UE.
  • the reason why the UE's authentication success response message is preferably used here is: Using the existing message as a carrier, there is no need to reconstruct a new message, which can save network resources and speed up the transmission. Referring to Figure 1, there is a connection between BNG and RG. In the related art, there are different types of RGs, such as bridge type and routing type.
  • the BNG sends the IP address to the UE, and different operations can also be used. Specifically, when the RG is a bridge type, the BNG can directly send the IP address to the UE; when the RG is a route type, the BNG needs to send the IP address to the UE by using the RG. The sending operation will be described in detail separately for different types of RGs. When RG is a bridge type, the BNG can directly send an IP address to the UE. Certainly, considering that the UE itself does not need to receive the IP address assigned by the mobile network gateway, a better and more accurate transmission mode may be adopted, that is, when the BNG receives the address request message initiated by the UE, the BNG is based on the UE.
  • the MAC (Media Access Control) address and/or access method sends the IP address to the UE. If the BNG does not receive the address request message sent by the UE, the BNG does not send the IP address to the UE.
  • the BNG stores the MAC address after the fixed network AAA sends an authentication success response message to the BNG. This ensures that the BNG can accurately locate the UE when it sends an IP address to the UE. What has been described above is how the BNG sends an IP address to the UE when the RG is a bridge type. This example will now explain how the BNG sends an IP address to the UE when the RG is a route type.
  • the BNG sends the UE's authentication success response message to the RG, and then the RG obtains an IP address from the UE's authentication success response message and sends it to the UE.
  • the authentication success response of the UE carries an IP address.
  • the RG receives the address request message initiated by the UE, and the RG is based on the UE.
  • the MAC address and/or access method sends the IP address to the UE. If the RG does not receive the address request message sent by the UE, the RG does not send an IP address to the UE.
  • the RG After the BNG sends the authentication success response message to the RG, the RG stores the MAC address. This ensures that the RG can accurately locate the UE when it sends an IP address to the UE.
  • the fixed network access gateway after the fixed network access gateway establishes a session with the mobile network gateway, the fixed network access gateway needs to establish a tunnel with the mobile network gateway to implement subsequent signal interaction.
  • the fixed network access gateway is separated from the BNG, and the fixed network access gateway has an interface with the fixed network AAA.
  • an embodiment of the present invention further provides an address allocation apparatus, which is disposed in a fixed network access gateway, and a schematic structural diagram thereof is shown in FIG. 3, including:
  • the module 301 is configured to receive an attach request message sent by the fixed network AAA after the UE of the mobile network accessing the fixed network is successfully authenticated in the mobile network, where the attach request message carries the subscription information of the UE, and the sending module 302,
  • the method is configured to send an attach request message to the mobile network gateway, and create a session with the mobile network gateway according to the subscription information.
  • the second receiving module 303 is configured to receive an IP address allocated by the mobile network gateway for the UE, and send an attach success message to the fixed network AAA.
  • the attach success message carries an IP address.
  • the mobile network is 3GPP
  • the UE is a 3GPP UE
  • the mobile network gateway uses a PDN-GW as an example
  • the fixed network access gateway uses a BWAG as an example
  • the fixed network AAA takes a BBF AAA as an example
  • BNG is separated from BWAG
  • BWAG and BBF AAA have interfaces.
  • the trigger mode of the embodiment is as follows: After the UE passes the authentication, the BBF AAA triggers the BWAG to establish a GTP tunnel to the PDN-GW. After the 3GPP UE that initiates the authentication request from the BBF AAA access network succeeds in the 3GPP network authentication, the BBF AAA obtains the subscription information and the access mode of the UE from the response message of the UE authentication success returned by the 3GPP network. Next, the BBF AAA sends an attach request message of the UE to the BWAG, where the subscription information of the UE is carried. Next, the BWAG creates a session with the PDN gateway of the 3GPP network and establishes a tunnel; the PDN gateway provides the BWAG with the IP address of the UE.
  • the BWAG replies to the BBF AAA with the UE's attach success message, which carries the IP address of the UE.
  • the BBF AAA sends an authentication success response message of the UE to the BNG, where the IP address and/or the access mode of the UE is carried; and the BNG saves the MAC address of the UE.
  • the BNG sends an authentication success response message of the UE to the RG. If the RG is a routing type, the response message carries the IP address and/or access mode of the UE; the RG saves the MAC address of the UE.
  • the BNG sends the IP address of the UE to the UE.
  • the BNG sends the IP address of the UE to the UE according to the MAC address and/or the access mode of the UE.
  • the RG is a route type
  • the RG sends the IP address of the UE to the UE.
  • the RG sends the IP address of the UE to the UE according to the MAC address and/or the access mode of the UE.
  • Embodiment 2 This embodiment provides a specific signaling and a corresponding process of a corresponding specification of a fixed network access gateway when the RG is a routing type. For details, refer to FIG. 4, including steps S401 to S412.
  • Step S401 The non-BBF UE sends an EAPoL-Start message to the RG, and performs authentication through the 802.1X protocol.
  • the UE is an 802. IX client, and the RG is an 802.1X authenticator.
  • Step S402 After receiving the EAPoL Start message sent by the UE, the RG sends an EAP Identity Request message to the UE, to notify the UE to report the user name. After receiving the EAP Identity Request message sent by the RG, the UE sends an EAP Identity Response message to the RG, where the message carries the user name. Then, the RG encapsulates the received EAP Identity Response packet into a RADIUS Access Request packet, and sends the RADIUS Access Request packet to the BNG.
  • Step S403 The BNG is used as the RADIUS proxy to send the RADIUS Access Request message received from the RG to the BBF AAA.
  • the BBF AAA forwards the RADIUS Access Request message received from the BNG according to the Network Address Identifier (NAI) of the UE.
  • NAI Network Address Identifier
  • 3GPP AAA If the BBF network uses the RADIUS protocol and the 3GPP network uses the DIAMETER protocol, there is a TA (Translation Agent) between the BBF AAA and the 3GPP AAA for protocol conversion. After the UE is authenticated, the 3GPP AAA returns an authentication success response message to the BBF AAA, where the UE carries the subscription information and the access mode of the UE.
  • TA Transmission Agent
  • the access mode indicates that the access mode is attached to the fixed network access network (such as the BBF access network). Whether the UE is connected to its home core network (such as the 3GPP core network) or from the fixed network.
  • the BBF AAA sends an attach request message of the UE to the BWAG, where the subscription information of the UE is carried.
  • the BWAG creates a session with the PDN gateway of the 3GPP network, and establishes a tunnel.
  • Step S406 The PDN gateway provides the BWAG with the IP address of the UE.
  • the BWAG replies to the BBF AAA with an attach success message of the UE, where the IP address of the UE is carried.
  • Step S408 The BBF AAA sends an authentication success response message of the UE to the BNG, where the IP address and/or the access mode of the UE is carried, and the BNG saves the MAC address of the UE.
  • Step S409 The BNG sends an authentication success response message of the UE to the RG. If the RG is a routing type, the response message carries the IP address and/or the access mode of the UE. The RG saves the MAC address of the UE.
  • Step S410 The RG returns an authentication success response message to the UE.
  • Step S411 The UE sends an address request message, such as a Router Solicitation message (the RS message is optional), and a DHCP Discover message to the RG.
  • Step S412 The RG sends the IP address of the UE to the UE. Or, after receiving the address request message (such as a DHCP Discover message), the RG sends the IP address of the UE to the UE according to the MAC address and/or the access mode of the UE.
  • Implementation 3 This embodiment provides specific signaling and corresponding procedures for the corresponding specifications of the fixed network access gateway when the RG is a bridge type. For the specific process, refer to FIG. 5, including steps S501 to S512.
  • Step S501 The non-BBF UE sends an EAPoL-Start message to the RG, and performs authentication through the 802.1X protocol.
  • the UE is an 802. IX client, and the RG is an 802.1X authenticator.
  • Step S502 After receiving the EAPoL Start message sent by the UE, the RG sends an EAP Identity Request message to the UE, to notify the UE to report the user name. After receiving the EAP Identity Request message sent by the RG, the UE sends an EAP Identity Response message to the RG, where the message carries the user name. Then, the RG encapsulates the received EAP Identity Response packet into a RADIUS Access Request packet, and sends the RADIUS Access Request packet to the BNG.
  • Step S503 The BNG is used as the RADIUS proxy to send the RADIUS Access Request message received from the RG to the BBF AAA.
  • the BBF AAA forwards the RADIUS Access Request message received from the BNG according to the Network Address Identifier (NAI) of the UE.
  • NAI Network Address Identifier
  • 3GPP AAA If the BBF network uses the RADIUS protocol and the 3GPP network uses the DIAMETER protocol, there is a TA (Translation Agent) between the BBF AAA and the 3GPP AAA for protocol conversion.
  • the 3GPP AAA After the UE is authenticated, the 3GPP AAA returns an authentication success response message to the BBF AAA, where the UE carries the subscription information and the access mode of the UE.
  • the access mode indicates that the access mode is attached to the fixed network access network (such as the BBF access network). Whether the UE is connected to its home core network (such as the 3GPP core network) or from the fixed network.
  • Step S504 The BBF AAA sends an attach request message of the UE to the BWAG, where the UE carries the subscription information of the UE.
  • Steps S505, S506, and BWAG create a session with the PDN gateway of the 3GPP network, and establish a tunnel.
  • the PDN gateway provides the IP address of the UE to the BWAG.
  • Step S507 The BWAG replies to the BBF AAA with an attach success message of the UE, where the IP address of the UE is carried;
  • Step S509 The BNG sends an authentication success response message of the UE to the RG.
  • S510. The RG returns an authentication success response message to the UE.
  • Step S511 The UE sends an address request message, such as a Router Solicitation message (the RS message is optional), and a DHCP Discover message to the BNG.
  • the present invention achieves the following technical effects:
  • the fixed network access gateway receives the attach request message from the fixed network AAA, and creates a connection request message with the mobile network gateway.
  • the session receives the IP address assigned to the UE and notifies the fixed network AAA of the IP address.
  • the method provided by the embodiment of the present invention clearly defines how to apply the fixed network access gateway after the introduction of the fixed network access gateway. In other words, the method provided by the embodiment of the present invention clearly defines the fixed network access.
  • the gateway participates in the specific process of assigning an IP address to the UE.
  • the flow direction of the signal flow between the fixed network access gateway and the fixed network AAA and the specific information of the transmission are clearly indicated.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices.
  • they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.

Abstract

本发明公开了一种地址分配方法及装置,该方法包括:从固网接入的移动网络的UE在移动网络认证成功后,固网接入网关接收固网AAA发送的附着请求消息,其中,附着请求消息中携带有UE的签约信息;固网接入网关将附着请求消息发送至移动网络网关,根据签约信息与移动网络网关创建会话;固网接入网关接收移动网络网关为UE分配的IP地址,发送附着成功消息至固网AAA,其中,附着成功消息中携带有IP地址。采用本发明解决了相关技术中网络架构中引入固网接入网关应如何应用的问题。

Description

地址分配方法及装置 技术领域 本发明涉及通信领域, 具体而言, 涉及一种地址分配方法及装置。 背景技术 随着网络技术的发展和用户对业务的需求, 终端逐渐多模化, 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。 由于不同的网络连接具有不同的特性和传 输能力, 从而能更好地满足用户多业务多样的需求。 多模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 UMTS (Universal Mobile Telecommunications System, 通用移动通信系统) /EDGE (Enhanced Data Rate for GSM Evolution, 增强型 数据速率 GSM (Global System for Mobile communication, 全球移动通信系统)演进技 术) /GPRS (General Packet Radio Service, 通用分组无线服务技术)与 IEEE (Institute of Electrical and Electronics Engineers, 美国电气和电子工程师协会) 802.11 WLAN (Wireless Local Area Networks, 无线局域网)的连接。 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, 多模终端利用 WLAN进行数据访问和 VoIP (Voice over Internet Protocol, 网络电话) 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, BBF (Broadband Forum,国际性标准组织宽带论坛)和 3GPP正在进行 FMC (Fixed Mobile Convergence, 固定网络与移动网络融合) 的标准化工作, 涉及的场景 包括 3GPP UE (User Equipment, 用户设备) 通过 RG (Residential Gateway, 住宅网 关)从 BBF网络接入的认证、 地址分配以及策略控制。 在认证过程中, 3GPP UE作为 802. lx客服端向 RG发起接入认证, 此时 RG作为 802. lx认证器及 RADIUS (Remote Authentication Dial In User Service, 远程用户拨号认证系统) 客服端向 BBF AAA (Authentication Authorization Accounting, 认证、 授权、 计费) 月艮务器发起认证请求。 在地址请求过程中, 3GPP UE 发起的地址请求消息经由 BNG (Broadband Network Gateway, 宽带网络网关设备) 向 PDN-GW (Packet Data Network Gateway, 分组数据 网网关)请求 IP地址。其中, BNG与 PDN-GW之间建立 S2a会话,并通过 GTP ( GPRS Tunneling Protocol, GPRS (General Packet Radio Service, 通用分组无线业务) 隧道协 议) 或代理移动因特网协议 (PMIP) 隧道实现。 相关技术中, 每个用户 BNG都需要与 PDN-GW之间建立 S2a会话。 为了在现网 中支持该场景, 需要对所有 BNG设备进行升级, 对现网影响较大, 为解决该问题, 引用了固网接入网关 (例如, BWAG (BBF WLAN Access Gateway, BBF WLAN接入 网关)), 引入 BWAG后的网络结构示意图如图 1所示。 引入固网接入网关后能够不需要对 BNG设备进行大规模升级, 尽量减少对现网 的影响。 但是现有技术中关于引入固网接入网关后如何进行应用并没有提供相应的规 范, 特别是对 BNG、 BBF AAA的影响尚未考虑。 针对相关技术中网络架构中引入固网接入网关应如何应用的问题, 目前尚未提出 有效的解决方案。 发明内容 本发明提供了一种地址分配方法, 以至少解决相关技术中网络架构中引入固网接 入网关应如何应用的问题。 根据本发明的一个方面, 提供了一种地址分配方法, 包括: 从固网接入的移动网 络的用户设备 UE在移动网络认证成功后,固网接入网关接收固网 AAA发送的附着请 求消息, 其中, 所述附着请求消息中携带有所述 UE的签约信息; 所述固网接入网关 将所述附着请求消息发送至移动网络网关, 根据所述签约信息与所述移动网络网关创 建会话; 所述固网接入网关接收所述移动网络网关为所述 UE分配的 IP地址, 发送附 着成功消息至所述固网 AAA, 其中, 所述附着成功消息中携带有所述 IP地址。 优选地, 所述固网接入网关发送所述附着成功消息至所述固网 AAA之后, 还包 括: 所述固网 AAA从所述附着成功消息中获取所述 IP地址; 所述固网 AAA将所述 IP地址发送至所述 UE。 优选地, 所述固网 AAA将所述 IP地址发送至所述 UE, 包括: 所述固网 AAA向 宽带网络网关设备 BNG发送所述 UE的认证成功响应消息, 其中, 所述认证成功响应 消息中携带有所述 UE的所述 IP地址以及接入方式; 所述 BNG从所述认证成功响应 消息中获取所述 IP地址, 并将所述 IP地址发送至所述 UE。 优选地,所述 BNG将所述 IP地址发送至所述 UE,包括:住宅网关 RG为桥型时, 所述 BNG直接将所述 IP地址发送至所述 UE; 或者所述 RG为路由型时, 所述 BNG 经所述 RG将所述 IP地址发送至所述 UE。 优选地, 所述 BNG直接将所述 IP地址发送至所述 UE, 包括: 所述 BNG接收所 述 UE发起的地址请求消息; 所述 BNG根据所述 UE的媒体接入控制 MAC地址和 / 或接入方式将所述 IP地址发送至所述 UE。 优选地, 所述 MAC地址的获取方式如下: 在所述固网 AAA向所述 BNG发送所 述认证成功响应消息之后, 所述 BNG存储所述 MAC地址。 优选地, 所述 BNG经所述 RG将所述 IP地址发送至所述 UE, 包括: 所述 BNG 将所述认证成功响应消息发送至所述 RG;所述 RG从所述认证成功响应消息中获取所 述 IP地址, 并发送至所述 UE。 优选地, 所述 RG将所述 IP地址发送至所述 UE, 包括: 所述 RG接收所述 UE 发起的地址请求消息; 所述 RG根据所述 UE的 MAC地址和 /或接入方式将所述 IP地 址发送至所述 UE。 优选地, 所述 MAC地址的获取方式如下: 所述 BNG将所述认证成功响应消息发 送至所述 RG之后, 所述 RG存储所述 MAC地址。 优选地, 所述固网接入网关与所述移动网络网关创建会话之后, 还包括: 所述固 网接入网关与所述移动网络网关之间建立隧道。 优选地, 所述固网接入网关与 BNG分离, 且所述固网接入网关与所述固网 AAA 间存在接口。 根据本发明的另一方面, 提供了一种地址分配装置, 设置于固网接入网关中, 包 括: 第一接收模块, 设置为从固网接入的移动网络的用户设备 UE在移动网络中认证 成功后, 接收固网 AAA发送的附着请求消息, 其中, 所述附着请求消息中携带有所 述 UE的签约信息; 发送模块, 设置为将所述附着请求消息发送至移动网络网关, 根 据所述签约信息与所述移动网络网关创建会话; 第二接收模块, 设置为接收所述移动 网络网关为所述 UE分配的 IP地址, 发送附着成功消息至所述固网 AAA, 其中, 所 述附着成功消息中携带有所述 IP地址。 在本发明实施例中, UE在认证成功之后, 固网接入网关从固网 AAA接收附着请 求消息, 与移动网络网关创建会话, 接收其为 UE分配的 IP地址, 并将该 IP地址通 知给固网 AAA。 SP, 本发明实施例提供的方法中明确限定了引入固网接入网关之后, 如何对固网接入网关进行应用, 换句话说, 本发明实施例提供的方法中明确限定了固 网接入网关参与为 UE分配 IP地址的具体流程。 在本例中, 考虑到固网接入网关对固 网 AAA的影响, 明确指出固网接入网关与固网 AAA间的信号流的流向以及传输的具 体信息。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部分, 本发 明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的不当限定。 在附图 中: 图 1是根据相关技术的 FMC架构图; 图 2是根据本发明实施例的地址分配方法的处理流程图; 图 3是根据本发明实施例的地址分配装置的结构示意图; 图 4是根据本发明实施例的 RG为路由型时的地址分配方法的处理流程图; 以及 图 5是根据本发明实施例的 RG为桥型时的地址分配方法的处理流程图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在不冲突的 情况下, 本申请中的实施例及实施例中的特征可以相互组合。 相关技术中提及,引用固网接入网关后能够不需要对 BNG设备进行大规模升级, 尽量减少对现网的影响。 但是现有技术中关于引入固网接入网关后如何进行应用并没 有提供相应的规范, 特别是对 BNG、 BBF AAA的影响尚未考虑。 为解决上述技术问题, 本发明实施例提供了一种地址分配方法, 其处理流程如图 2所示, 包括步骤 S202至步骤 S206。 步骤 S202、 从固网接入的移动网络的 UE在移动网络认证成功后, 固网接入网关 接收固网 AAA发送的附着请求消息, 其中, 附着请求消息中携带有 UE的签约信息。 步骤 S204、 固网接入网关将附着请求消息发送至移动网络网关, 根据签约信息与 移动网络网关创建会话。 步骤 S206、固网接入网关接收移动网络网关为 UE分配的 IP地址,发送附着成功 消息至固网 AAA, 其中, 附着成功消息中携带有 IP地址。 在本发明实施例中, UE在认证成功之后, 固网接入网关从固网 AAA接收附着请 求消息, 与移动网络网关创建会话, 接收其为 UE分配的 IP地址, 并将该 IP地址通 知给固网 AAA。 SP, 本发明实施例提供的方法中明确限定了引入固网接入网关之后, 如何对固网接入网关进行应用, 换句话说, 本发明实施例提供的方法中明确限定了固 网接入网关参与为 UE分配 IP地址的具体流程。 在本例中, 考虑到固网接入网关对固 网 AAA的影响, 明确指出固网接入网关与固网 AAA间的信号流的流向以及传输的具 体信息。 如图 2所示流程,步骤 S206中提及固网接入网关发送附着成功消息至固网 AAA, 在该操作步骤实施之后, 固网 AAA可以从附着成功消息中获取 IP地址, 然后将 IP地 址发送至 UE。 UE接收到移动网络网关为其分配的 IP地址, 整个地址分配流程结束。 考虑到描述的便宜性, 后文移动网络网关为 UE分配的 IP地址均称为 IP地址。 在一个优选的实施例中, 固网 AAA将 IP地址发送至 UE, 可以固网 AAA与 UE 间传输的消息作为 IP地址传输的载体。在本例中,优选使用 UE的认证成功响应消息。 即, 固网 AAA向 BNG发送 UE的认证成功响应消息, 其中, 认证成功响应消息中携 带有 UE的 IP地址以及接入方式。 之后, BNG从上述认证成功响应消息中获取 IP地 址, 并将 IP地址发送至 UE。 此处优选使用 UE的认证成功响应消息的原因是: 利用 已有消息作为载体, 不需要重新构建新的消息, 能够节省网络资源, 且能够加快传输 速度。 参见图 1, BNG与 RG间存在连接。 在相关技术中, RG存在不同的类型, 常用 的例如桥型和路由型。 根据 RG的不同的类型, BNG将 IP地址发送至 UE, 也可以采 用不同的操作。 具体的, 当 RG为桥型时, BNG能够直接将 IP地址发送至 UE; 当 RG为路由型时, BNG需要经 RG将 IP地址发送至 UE。 现分别针对 RG的不同类型 对发送操作进行详细说明。 当 RG为桥型时, BNG能够直接将 IP地址发送至 UE。 当然, 考虑 UE自身可能 当前并不需要接收移动网络网关为其分配的 IP地址,可以采用一种更优更为准确的发 送方式, 即: 当 BNG接收 UE发起的地址请求消息, BNG才根据 UE的 MAC (Media Access Control, 媒体接入控制) 地址和 /或接入方式将 IP地址发送至 UE。 若 BNG未接收到 UE发送的地址请求消息, 则 BNG就不发送 IP地址至 UE。 其中,在固网 AAA向 BNG发送认证成功响应消息之后, BNG就存储 MAC地址。 这就保证了 BNG向 UE发送 IP地址的时候能够对 UE进行准确定位。 上文描述的是当 RG为桥型时 BNG如何将 IP地址发送至 UE, 现在本例将对 RG 为路由型时 BNG如何将 IP地址发送至 UE进行说明。 在本例中, BNG将 UE的认证成功响应消息发送至 RG,之后 RG从 UE的认证成 功响应消息中获取 IP地址, 并发送至 UE。上文已经提及, UE的认证成功响应中携带 有 IP地址。 当然, 考虑 UE自身可能当前并不需要接收移动网络网关为其分配的 IP地址, 可 以采用一种更优更为准确的发送方式, 即: RG接收 UE发起的地址请求消息, RG才 根据 UE的 MAC地址和 /或接入方式将 IP地址发送至 UE。若 RG未接收到 UE发送的 地址请求消息, 则 RG就不发送 IP地址至 UE。 其中, BNG将认证成功响应消息发送至 RG之后, RG就存储 MAC地址。 这就 保证了 RG向 UE发送 IP地址的时候能够对 UE进行准确定位。 在上述任意一个的优选实施例中, 固网接入网关与移动网络网关创建会话之后, 固网接入网关需要与移动网络网关之间建立隧道, 以实现后续的信号交互。 在上述任意一个优选的实施例中, 固网接入网关与 BNG分离, 且固网接入网关 与固网 AAA间存在接口。 为支持并实现上述各实施例, 基于同一发明构思, 本发明实施例还提供了一种地 址分配装置, 设置于固网接入网关中, 其结构示意图如图 3所示, 包括: 第一接收模块 301,设置为从固网接入的移动网络的 UE在移动网络中认证成功后, 接收固网 AAA发送的附着请求消息, 其中, 附着请求消息中携带有 UE的签约信息; 发送模块 302, 设置为将附着请求消息发送至移动网络网关, 根据签约信息与移 动网络网关创建会话; 第二接收模块 303, 设置为接收移动网络网关为 UE分配的 IP地址, 发送附着成 功消息至固网 AAA, 其中, 附着成功消息中携带有 IP地址。 为将本发明实施例提供的方法阐述地更清楚更明白, 现以具体实施例对其进行说 明。 为方便描述, 各具体实施例中, 移动网络为 3GPP, UE为 3GPP UE, 移动网络网 关以 PDN-GW为例, 固网接入网关以 BWAG为例, 固网 AAA以 BBF AAA为例, 且 各具体实施例的应用场景前提均为图 1所示: BNG与 BWAG分离, BWAG与 BBF AAA 存在接口。 实施例一 本实施例的触发方式为: UE的认证通过后,由 BBF AAA触发 BWAG向 PDN-GW 建立 GTP隧道 ( Tunnel )。 从 BBF AAA接入网络发起认证请求的 3GPP UE在 3GPP网络认证成功后, BBF AAA从 3GPP网络返回的 UE认证成功的响应消息中获取 UE的签约信息及接入方式。 下一步, BBF AAA向 BWAG发送 UE的附着请求消息, 其中携带 UE的签约信 息。 下一步, BWAG与 3GPP网络的 PDN网关创建会话, 并建立隧道; PDN网关向 BWAG提供 UE的 IP地址。 下一步, BWAG向 BBF AAA回复 UE的附着成功消息,其中携带 UE的 IP地址。 下一步, BBF AAA向 BNG发送 UE的认证成功响应消息, 其中携带 UE的 IP地 址和 /或接入方式; BNG保存 UE的 MAC地址。 下一步, BNG向 RG发送 UE的认证成功响应消息; 如果 RG是路由型, 则该响 应消息中携带 UE的 IP地址和 /或接入方式; RG保存 UE的 MAC地址。 下一步, BNG将 UE的 IP地址发送给 UE。 优选的, BNG在收到 UE发起地址请 求消息后根据 UE的 MAC地址和 /或接入方式将该 UE的 IP地址发送给 UE。 其中, 当 RG是路由型时, 则 RG将 UE的 IP地址发送给 UE。 优选的, RG在收 到 UE发起地址请求消息后根据 UE的 MAC地址和 /或接入方式将该 UE的 IP地址发 送给 UE。 实施例二 本实施例提供了当 RG为路由型时固网接入网关的相应规范的具体信令与相应流 程, 具体流程请参见图 4, 包括步骤 S401至步骤 S412。 步骤 S401、 非 BBF的 UE向 RG发送认证协议开始 (EAPoL-Start) 报文, 通过 802.1X协议进行认证。 UE为 802. IX客户端, RG为 802.1X认证器。 步骤 S402、 收到 UE发送的 EAPoL Start报文后, RG向 UE发送认证协议 ID请 求 (EAP Identity Request) 报文, 用于通知 UE上报用户名。 其中,收到 RG发送的 EAP Identity Request报文后, UE回复认证协议 ID应答( EAP Identity Response) 报文给 RG, 其中报文中携带用户名。 随后, RG将收到的 EAP Identity Response报文封装到认证接入请求 (RADIUS Access Request) 报文中, 将 RADIUS Access Request报文发送给 BNG。 步骤 S403、 BNG作为 RADIUS Proxy将从 RG收到的 RADIUS Access Request报 文发送给 BBF AAA; BBF AAA根据 UE的网络地址标识 (NAI, Network Address Identifier) 将从 BNG收到的 RADIUS Access Request报文转发给 3GPP AAA。 若 BBF 网络使用 RADIUS协议, 而 3GPP网络使用 DIAMETER协议, 则 BBF AAA和 3GPP AAA之间存在 TA (Translation Agent, 翻译代理) 来进行协议转换。 其中, UE通过认证后, 3GPP AAA给 BBF AAA回复认证成功响应消息, 其中携 带 UE的签约信息及接入方式; 具体地, 接入方式表示从固网接入网络 (如 BBF接入 网络) 附着的 UE是连接到其归属核心网 (如 3GPP核心网) 还是从固网分流。 步骤 S404、 BBF AAA向 BWAG发送 UE的附着请求消息, 其中携带 UE的签约 信息。 步骤 S405、 BWAG与 3GPP网络的 PDN网关创建会话, 并建立隧道。 步骤 S406、 PDN网关向 BWAG提供 UE的 IP地址。 步骤 S407、 BWAG向 BBF AAA回复 UE的附着成功消息, 其中携带 UE的 IP地 址。 步骤 S408、 BBF AAA向 BNG发送 UE的认证成功响应消息, 其中携带 UE的 IP 地址和 /或接入方式; BNG保存 UE的 MAC地址。 步骤 S409、 BNG向 RG发送 UE的认证成功响应消息; RG是路由型, 则该响应 消息中携带 UE的 IP地址和 /或接入方式; RG保存 UE的 MAC地址。 步骤 S410、 RG向 UE回复认证成功响应消息。 步骤 S411、 UE向 RG发送地址请求消息, 如 Router Solicitation (路由请求)消息 (RS消息为可选)、 DHCP Discover消息。 步骤 S412、 RG将 UE的 IP地址发送给 UE。 或者, RG在收到 UE发起地址请求 消息 (如 DHCP Discover消息) 后根据 UE的 MAC地址和 /或接入方式将该 UE的 IP 地址发送给 UE。 实施三: 本实施例提供了当 RG为桥型时固网接入网关的相应规范的具体信令与相应流程, 具体流程请参见图 5, 包括步骤 S501至步骤 S512。 步骤 S501、 非 BBF的 UE向 RG发送认证协议开始 (EAPoL-Start) 报文, 通过 802.1X协议进行认证。 UE为 802. IX客户端, RG为 802.1X认证器。 步骤 S502、 收到 UE发送的 EAPoL Start报文后, RG向 UE发送认证协议 ID请 求 (EAP Identity Request) 报文, 用于通知 UE上报用户名。 其中,收到 RG发送的 EAP Identity Request报文后, UE回复认证协议 ID应答( EAP Identity Response) 报文给 RG, 其中报文中携带用户名。 随后, RG将收到的 EAP Identity Response报文封装到认证接入请求 (RADIUS Access Request) 报文中, 将 RADIUS Access Request报文发送给 BNG。 步骤 S503、 BNG作为 RADIUS Proxy将从 RG收到的 RADIUS Access Request报 文发送给 BBF AAA; BBF AAA根据 UE的网络地址标识 (NAI, Network Address Identifier) 将从 BNG收到的 RADIUS Access Request报文转发给 3GPP AAA。 若 BBF 网络使用 RADIUS协议, 而 3GPP网络使用 DIAMETER协议, 则 BBF AAA和 3GPP AAA之间存在 TA (Translation Agent, 翻译代理) 来进行协议转换。 其中, UE通过认证后, 3GPP AAA给 BBF AAA回复认证成功响应消息, 其中携 带 UE的签约信息及接入方式; 具体地, 接入方式表示从固网接入网络 (如 BBF接入 网络) 附着的 UE是连接到其归属核心网 (如 3GPP核心网) 还是从固网分流。 步骤 S504、 BBF AAA向 BWAG发送 UE的附着请求消息, 其中携带 UE的签约 信息; 步骤 S505、 S506、 BWAG与 3GPP网络的 PDN网关创建会话, 并建立隧道; PDN 网关向 BWAG提供 UE的 IP地址; 步骤 S507、 BWAG向 BBF AAA回复 UE的附着成功消息, 其中携带 UE的 IP地 址; 步骤 S508、 BBF AAA向 BNG发送 UE的认证成功响应消息, 其中携带 UE的 IP 地址和 /或接入方式; BNG保存 UE的 MAC地址; 步骤 S509、 BNG向 RG发送 UE的认证成功响应消息; 步骤 S510、 RG向 UE回复认证成功响应消息; 步骤 S511、 UE向 BNG发送地址请求消息, 如 Router Solicitation (路由请求) 消 息 (RS消息为可选)、 DHCP Discover消息; 步骤 S512、 BNG将 UE的 IP地址发送给 UE。 或者, BNG在收到 UE发起地址 请求消息 (如 DHCP Discover消息) 后根据 UE的 MAC地址和 /或接入方式将该 UE 的 IP地址发送给 UE。 从以上的描述中, 可以看出, 本发明实现了如下技术效果: 在本发明实施例中, UE在认证成功之后, 固网接入网关从固网 AAA接收附着请 求消息, 与移动网络网关创建会话, 接收其为 UE分配的 IP地址, 并将该 IP地址通 知给固网 AAA。 SP, 本发明实施例提供的方法中明确限定了引入固网接入网关之后, 如何对固网接入网关进行应用, 换句话说, 本发明实施例提供的方法中明确限定了固 网接入网关参与为 UE分配 IP地址的具体流程。 在本例中, 考虑到固网接入网关对固 网 AAA的影响, 明确指出固网接入网关与固网 AAA间的信号流的流向以及传输的具 体信息。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可以用通用 的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布在多个计算装置所 组成的网络上, 可选地, 它们可以用计算装置可执行的程序代码来实现, 从而, 可以 将它们存储在存储装置中由计算装置来执行, 并且在某些情况下, 可以以不同于此处 的顺序执行所示出或描述的步骤, 或者将它们分别制作成各个集成电路模块, 或者将 它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样, 本发明不限制于任 何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领域的技 术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内, 所作的 任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1. 一种地址分配方法, 包括:
从固网接入的移动网络的用户设备 UE在移动网络认证成功后, 固网接入 网关接收固网认证、 授权、 计费服务器 AAA发送的附着请求消息, 其中, 所 述附着请求消息中携带有所述 UE的签约信息; 所述固网接入网关将所述附着请求消息发送至移动网络网关, 根据所述签 约信息与所述移动网络网关创建会话;
所述固网接入网关接收所述移动网络网关为所述 UE分配的因特网协议 IP 地址, 发送附着成功消息至所述固网 AAA, 其中, 所述附着成功消息中携带有 所述 IP地址。
2. 根据权利要求 1所述的方法, 其中, 所述固网接入网关发送所述附着成功消息 至所述固网 AAA之后, 还包括:
所述固网 AAA从所述附着成功消息中获取所述 IP地址;
所述固网 AAA将所述 IP地址发送至所述 UE。
3. 根据权利要求 2所述的方法, 其中, 所述固网 AAA将所述 IP地址发送至所述 UE, 包括:
所述固网 AAA向宽带网络网关设备 BNG发送所述 UE的认证成功响应消 息, 其中, 所述认证成功响应消息中携带有所述 UE的所述 IP地址以及接入方 式;
所述 BNG从所述认证成功响应消息中获取所述 IP地址,并将所述 IP地址 发送至所述 UE。
4. 根据权利要求 3所述的方法,其中,所述 BNG将所述 IP地址发送至所述 UE, 包括:
住宅网关 RG为桥型时,所述 BNG直接将所述 IP地址发送至所述 UE; 或 者
所述 RG为路由型时,所述 BNG经所述 RG将所述 IP地址发送至所述 UE。
5. 根据权利要求 4所述的方法, 其中, 所述 BNG直接将所述 IP地址发送至所述 UE, 包括:
所述 BNG接收所述 UE发起的地址请求消息;
所述 BNG根据所述 UE的媒体接入控制 MAC地址和 /或接入方式将所述 IP地址发送至所述 UE。
6. 根据权利要求 5所述的方法, 其中, 所述 MAC地址的获取方式如下:
在所述固网 AAA向所述 BNG发送所述认证成功响应消息之后,所述 BNG 存储所述 MAC地址。
7. 根据权利要求 4所述的方法, 其中, 所述 BNG经所述 RG将所述 IP地址发送 至所述 UE, 包括:
所述 BNG将所述认证成功响应消息发送至所述 RG;
所述 RG从所述认证成功响应消息中获取所述 IP地址,并发送至所述 UE。
8. 根据权利要求 7所述的方法, 其中, 所述 RG将所述 IP地址发送至所述 UE, 包括:
所述 RG接收所述 UE发起的地址请求消息;
所述 RG根据所述 UE的 MAC地址和 /或接入方式将所述 IP地址发送至所 述 UE。
9. 根据权利要求 8所述的方法, 其中, 所述 MAC地址的获取方式如下:
所述 BNG将所述认证成功响应消息发送至所述 RG之后,所述 RG存储所 述 MAC地址。
10. 根据权利要求 1至 9任一项所述的方法, 其中, 所述固网接入网关与所述移动 网络网关创建会话之后, 还包括: 所述固网接入网关与所述移动网络网关之间 建立隧道。
11. 根据权利要求 1至 9任一项所述的方法, 其中, 所述固网接入网关与 BNG分 离, 且所述固网接入网关与所述固网 AAA间存在接口。
12. 一种地址分配装置, 设置于固网接入网关中, 包括: 第一接收模块, 设置为从固网接入的移动网络的用户设备 UE在移动网络 中认证成功后,接收固网认证、授权、计费服务器 AAA发送的附着请求消息, 其中, 所述附着请求消息中携带有所述 UE的签约信息;
发送模块, 设置为将所述附着请求消息发送至移动网络网关, 根据所述签 约信息与所述移动网络网关创建会话;
第二接收模块, 设置为接收所述移动网络网关为所述 UE分配的因特网协 议 IP地址, 发送附着成功消息至所述固网 AAA, 其中, 所述附着成功消息中 携带有所述 IP地址。
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