WO2008154847A1 - Procédé d'indication d'opération, dispositif et système - Google Patents

Procédé d'indication d'opération, dispositif et système Download PDF

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Publication number
WO2008154847A1
WO2008154847A1 PCT/CN2008/071297 CN2008071297W WO2008154847A1 WO 2008154847 A1 WO2008154847 A1 WO 2008154847A1 CN 2008071297 W CN2008071297 W CN 2008071297W WO 2008154847 A1 WO2008154847 A1 WO 2008154847A1
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WO
WIPO (PCT)
Prior art keywords
indication
operation indication
service
function entity
message
Prior art date
Application number
PCT/CN2008/071297
Other languages
English (en)
French (fr)
Inventor
Ting Zou
Zhenjian Zheng
Original Assignee
Huawei Technologies Co., Ltd.
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.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to EP08757708A priority Critical patent/EP2117179A4/en
Publication of WO2008154847A1 publication Critical patent/WO2008154847A1/zh
Priority to US12/607,960 priority patent/US20100046422A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/70Admission control; Resource allocation
    • H04L47/80Actions related to the user profile or the type of traffic
    • H04L47/805QOS or priority aware
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/50Network service management, e.g. ensuring proper service fulfilment according to agreements
    • H04L41/5003Managing SLA; Interaction between SLA and QoS
    • H04L41/5019Ensuring fulfilment of SLA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/70Admission control; Resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/08Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/0892Network architectures or network communication protocols for network security for authentication of entities by using authentication-authorization-accounting [AAA] servers or protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/09Mapping addresses
    • H04L61/25Mapping addresses of the same type
    • H04L61/2503Translation of Internet protocol [IP] addresses

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an operation indication method, device, and system.
  • Ethernet technology has become one of the main technologies for building a triple play and metropolitan area network in the future.
  • the Ethernet business will have great development in the future market.
  • a RACS Resource Admission Control Subsystem
  • NGN Next Generation Internet
  • RACS mainly includes SPDF (business-based policy decision function) and A-RACF (access-resource admission control function).
  • the other parts in Figure 1 describe the relationship and interface between related functional entities and RACS architecture.
  • the AF application function entity
  • the AF interacts with the SPDF through the Gq' interface to deliver information related to the session service; the AF may specifically be: P-CSCF (Proxy-Call Session Control Function Entity), IBCF (Interconnect Boundary Control Function); BGF (Boundary Gateway Functional Entity) and RCEF (Resource Control Execution Function) are passed
  • P-CSCF Proxy-Call Session Control Function Entity
  • IBCF Interconnect Boundary Control Function
  • BGF Border Gateway Functional Entity
  • RCEF Resource Control Execution Function
  • NAT solves the problem of address conflict by replacing the unregistered address written on the IP packet with a valid, registered IP address. That is to say: use the internal address in the internal network, translate the internal address into a legal IP address through NAT and use it on the Internet; after NAT conversion, replace the address in the IP packet with a legal IP address, you can Meet the needs of a large number of internal hosts accessing the Internet with a small number of IP addresses.
  • Request, authentication and authorization request only carries media information.
  • the SPDF only performs QoS processing. If the A AR of the AF only carries the NAT binding information, the S1SPDF only performs NAT control processing, if the AF AAR carries the media information. Binding information with NAT is the same as QoS and NAT processing. That is: In the existing RACS standard, the AAR message of the Gq' interface does not carry the AVP (Attrib ute Value) indicating NAT and/or QoS operations.
  • the embodiments of the present invention provide an operation indication method, device, and system, which solve the problem that the implementation of the existing SPDF identification N AT operation or the QoS resource reservation operation is complicated and the flexibility is poor.
  • An embodiment of the present invention provides an operation indication method, including:
  • the application function entity After receiving the trigger message, the application function entity determines an operation indication, where the operation indication includes indicating a quality of service resource reservation operation and/or a network address translation control operation;
  • the application function entity sends the operation indication to the service-based policy decision function entity
  • the business-based policy decision function entity accepts and identifies the operational indication and performs a corresponding operation in accordance with the operational indication.
  • An embodiment of the present invention provides an application function entity, including:
  • an operation indication determining module configured to determine an operation indication, where the operation indication includes indicating a quality of service resource reservation operation and/or a network address translation control operation;
  • the operation indication sending module is configured to send the operation indication determined by the operation instruction determining module.
  • An embodiment of the present invention provides a service-based policy decision function entity, including:
  • an operation indication identification module configured to receive a message and identify an operation indication carried in the message, where the operation indication includes indicating a quality of service resource reservation operation and/or a network address translation control operation;
  • An operation execution module configured to perform a corresponding operation according to the recognition result of the operation instruction identification module.
  • An embodiment of the present invention provides an operation indication system, including:
  • an application function entity configured to determine and send a carrying operation indication message after being triggered, where the operation indication includes indicating a quality of service resource reservation operation and/or a network address translation control operation;
  • a service-based policy decision function entity configured to receive and identify an operation indication in a message sent by the application function entity, and perform a corresponding operation according to the operation instruction.
  • the foregoing technical solution provided by the embodiment of the present invention adds the field indicating the operation indication to the message that the application function entity interacts with the service-based policy decision function entity, so that the service is based on the service.
  • the policy decision function entity can quickly and easily identify whether it needs to perform QoS resource reservation, NAT control operation, or both, which increases the flexibility of operation and reduces the complexity of implementation.
  • FIG. 1 is a diagram showing an RACS architecture defined in a prior art NGN
  • FIG. 3 is a flowchart of Embodiment 2 of the present invention.
  • FIG. 5 is a schematic structural view of Embodiment 5 of the present invention. [36] Mode for carrying out the invention
  • the embodiment of the present invention adds an operation indication field to the interface message by extending an interface between the application function entity and the service-based policy decision entity, so that the service-based policy decision entity can be configured according to the operation indication. Quickly and accurately identify the specific actions that need to be performed.
  • the two entities may be an application function entity and a service-based policy decision function entity.
  • the following example illustrates the two entities, AF and SPDF, of the TISPAN (Telecommunications and Internet Convergence Service and Advanced Network Protocol) system.
  • TISPAN Telecommunications and Internet Convergence Service and Advanced Network Protocol
  • the AVP enables the SPDF to distinguish whether the AF needs to perform NAT control or QoS resource reservation, or both need to be executed.
  • AAR message after the AVP is defined as follows:
  • Binding Information (binding information)
  • the AVP message format of Operation-Indication can be an integer 32-bit format, which can be defined as:
  • NAT(O) indicates the NAT function indication
  • QoS (1) indicates QoS function indication
  • NAT(O) and QoS (1) Instruct peers to do NAT and QoS.
  • the QoS resource reservation is required, and the operation-indication value is set to 1 in advance, indicating that the SPDF is required to perform the QoS resource reservation operation.
  • the following operations are specifically included:
  • Step 1 The AF is triggered to send an AAR carrying an operation indication to the SPDF;
  • the AF may be triggered according to the received trigger message, and the trigger message may include: a session signaling message or an internal operation message of the AF itself, and the specific trigger type may be a resource request, a resource modification, or the like.
  • the AF may specifically be a P-CSCF or an IBCF.
  • the AF After the AF is triggered, the AF obtains a QoS resource reservation operation for the user according to the local policy, and the AF acquires a local QoS resource reservation operation indication Operation-Indication, and carries the operation indication to send an AAR to the SPDF. ;
  • Step 2 The SPDF obtains the AAR from the AF, and the Operation-Indication value is "1", then it can be determined A QoS resource reservation operation is required, and after the QoS resource reservation is successful, a successful AA A (AA Answer, AAR message response) message is returned to the AF;
  • SPDF interacts with C-BGF and I-BGF to complete QoS resource reservation according to the indication of AF (P-CSCF or IBCF);
  • Step 3 AF receives the AAA from SPDF and performs subsequent processing.
  • the SPDF can perform a specific operation according to the operation instruction, which increases the flexibility of operation, and is simple and easy to implement.
  • the operation-indication value is set to 0, which indicates that the SPDF is required to perform the NAT control operation. As shown in FIG. 3, the following operations are specifically performed:
  • Step 1 The AF is triggered to send an AAR carrying an operation indication to the SPDF;
  • the AF may be triggered by the received session signaling message or triggered by an internal operation of the AF itself, and the specific trigger type may be a resource request, a resource modification, or the like;
  • the AF may specifically be a P-CSCF or an IBCF.
  • the user After the AF is triggered, according to the local policy, the user needs to perform NAT control on the user, and then obtains a local NAT control operation indication Operation-Indication, and carries the operation indication to send an AAR to the SPDF;
  • Step 2 The SPDF obtains an AAR from the AF, and if the Operation-Indication value is "0", it may determine that a NAT control operation is required, and after the NAT control operation succeeds, return a successful AAA message to the AF;
  • SPDF interacts with C-BGF and I-BGF to complete NAT control operations according to the indication of AF (P-CSCF or IBCF);
  • Step 3 AF receives the AAA from SPDF and performs subsequent processing.
  • the above embodiment is to perform local NAT control in the AF, and by carrying an indication indicating that the NAT control operation is performed in the AAR message, the SPDF can perform a specific operation according to the operation instruction, thereby increasing the flexibility of operation. And the implementation is simple and easy to implement.
  • the third embodiment is a case where both QoS resource reservation and NAT control are required, and the operation-indication value is set to 0 ⁇ ', which indicates that the SPDF is required to perform the NAT control operation; the Operation-Indication value is 1. ⁇ , indicating that the SPDF is required to perform the QoS resource reservation operation; as shown in FIG. 4, the following operations are specifically included: [88] Step 1: The AF is triggered to send an AAR carrying an operation indication to the SPDF;
  • the AF may be triggered by a received session signaling message or triggered by an internal operation of the AF itself, and the specific trigger type may be a resource request, a resource modification, or the like;
  • the AF may specifically be a P-CSCF or an IBCF.
  • Step 2 The SPDF obtains an AAR from the AF, and the Operation-Indication values are “0” and “1”, and the Bay IJ can determine that both QoS resource reservation and NAT control are required, and the QoS resource is pre- After the NAT control operation succeeds, a successful AAA message is returned to the AF;
  • SPDF interacts with C-BGF and I-BGF to complete QoS resource reservation and NAT operation according to the indication of AF (P-CSCF, IBCF);
  • Step 3 AF receives the AAA from SPDF and performs subsequent processing.
  • the AF carries a field indicating an operation indication by transmitting an AAR message to the SPDF.
  • the SPDF can perform the corresponding operations according to the instructions, which is simple to implement, increases the flexibility of the operation, and reduces the implementation complexity.
  • the operation indication value is defaulted, and the AF does not send the indication value "0" or "1" to the SPD.
  • the fifth embodiment of the present invention provides an operation indication system.
  • the system composition shown in this embodiment is as shown in FIG. 5, and includes an application function entity and a service-based policy decision entity.
  • the application function entity is configured to determine and send an AAR message carrying an operation indication when triggered
  • the operation indication includes indicating a QoS resource reservation operation and/or a NAT control operation.
  • the application function entity includes at least the following modules:
  • an operation indication determining module configured to determine an operation indication, and the operation instruction may be obtained according to a local policy
  • the operation indication may be: indicating that a QoS resource reservation and/or a NAT control operation is performed;
  • the operation indication sending module is configured to send the operation indication obtained by the operation indication determining module, and may be sent by carrying the operation indication in an AAR message.
  • the application function entity may be a P-CSCF or an IBCF.
  • the service-based policy decision entity is configured to receive and identify an operation indication in a message sent by the application function entity, where the operation indication includes indicating a QoS resource reservation operation and/or a NAT control operation, The operation instruction indicates that the corresponding operation is performed; to complete the function, the service-based policy decision entity includes at least:
  • an operation indication identification module configured to receive a message and identify an operation indication carried in the message, where the operation indication includes indicating a QoS resource reservation operation and/or a NAT control operation;
  • An operation execution module configured to perform a specific operation according to the recognition result of the operation instruction identification module.
  • the embodiment of the present invention adds an Operation-Indication indicating an operation indication to an AAR message by extending an interface between the AF and the SPDF.
  • AVP enables SPDF to quickly and easily identify whether it needs to perform QoS resource reservation or NAT control operation, which increases the flexibility of operation and reduces the complexity of implementation.

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Description

一种操作指示方法、 设备及系统
[1] 本申请要求于 2007年 06月 15日提交中国专利局、 申请号为 200710118993.2、 发 明名称为"一种操作指示方法、 设备及系统"的中国专利申请的优先权, 其全部内 容通过引用结合在本申请中。
[2] 技术领域
[3] 本发明涉及通信技术领域, 尤其涉及一种操作指示方法、 设备及系统。
[4] 发明背景
[5] 随着 Internet (互联网) 规模的不断增大, 各种各样的网络服务争相涌现, 先进 的多媒体通信系统层出不穷。 一方面, 由于实吋业务对网络传输吋延、 延吋抖 动等特性较为敏感, 当网络上有突发性高的 FTP (文件传送协议) 或者含有图像 文件的 HTTP (超文本传输协议) 等业务吋, 实吋业务就会受到很大影响; 另一 方面, 由于多媒体业务占去了大量的带宽, 现有网络要保证的关键业务就难以 得到可靠的传输。 于是, 各种 QoS (服务质量) 技术应运而生。
[6] 运营商和企事业用户对以太网技术和端对端以太网技术有较高的认知程度。 以 太网技术成为未来搭建三网合一、 城域网的主要技术之一, 以太网业务在未来 市场将会有极大的发展。
针对这些状况, 在 NGN (ETSI的 TISPAN的分组网络架构) 中, 在应用层和传 送层之间引入了 RACS (资源接纳控制子系统) 子系统, 用于统一管理承载网的 资源, 并提供基于策略的控制, 包括承载网的 QoS、 NAT (网络地址转换) 等, 都需经过 RACS来访问和控制。 NGN (下一代互联网) 中定义的 RACS架构如图 1 所示。
RACS主要包括 SPDF (基于业务的策略决策功能) 和 A-RACF (接入—资源接 纳控制功能) , 图 1中其它部分表述了相关功能实体和 RACS架构的关系和接口 。 AF (应用功能实体) 通过 Gq'接口与 SPDF交互, 传递会话业务相关的信息; 所述 AF具体可以为: P-CSCF (代理 -呼叫会话控制功能实体) 、 IBCF (互连边 界控制功能) ; BGF (边界网关功能实体) 和 RCEF (资源控制执行功能) 是传 输层的策略执行点, SPDF主要通过和 BGF交互, 使其执行 QoS控制策略和 /或 NA
T控制。
其中 NAT原理为: NAT通过将写在 IP包上的未经注册的地址替换为合法的、 已 获注册的 IP地址来解决地址冲突的问题。 也就是说: 在内部网络中使用内部地址 , 通过 NAT把内部地址翻译成合法的 IP地址在 Internet上使用; 在进行 NAT转换 吋, 将 IP包内的地址用合法的 IP地址来替换, 就可以满足大量内部主机用少量的 IP地址访问互联网的需求了。
但是, 在实现本发明过程中, 发明人发现上述技术至少存在如下缺点: 在现有的运营商网络中, NAT控制和 QoS资源预留的实现可以单独执行, 也可 以同吋执行; 如果 AF的 AAR (Authentication Authorization
Request, 认证授权请求) 中只携带媒体信息贝 l」SPDF只做 QoS处理, 如果 AF的 A AR只携带 NAT绑定信息, 贝 l」SPDF只做 NAT控制处理, 如果 AF的 AAR携带了媒 体信息和 NAT绑定信息贝 l」SPDF同吋做 QoS和 NAT处理。 即: 在现有的 RACS标准 中, Gq'接口的 AAR消息中没有携带关于指示 NAT和 (或) QoS操作的 AVP (Attrib ute Value
Pair, 特征值对) , 因此在运营商要求只做 NAT或只做 QoS或者两者都做的情况 下, SPDF就只能根据媒体信息或 NAT绑定信息进行区分, 这样操作比较复杂, 灵活性差。
发明内容
本发明实施例提供一种操作指示方法、 设备及系统, 解决了现有的 SPDF识别 N AT操作或 QoS资源预留操作中的实现复杂、 灵活性差的问题。
本发明实施例是通过以下技术方案实现的:
本发明实施例提供一种操作指示方法, 包括:
应用功能实体接收到触发消息后, 确定操作指示, 所述操作指示包括指示服务 质量资源预留操作和 /或网络地址转换控制操作;
应用功能实体发送所述操作指示给基于业务的策略决策功能实体;
基于业务的策略决策功能实体接受并识别所述操作指示, 并根据所述操作指示 执行相应的操作。 [19] 本发明实施例提供一种应用功能实体, 包括:
[20] 操作指示确定模块, 用于确定操作指示, 所述操作指示包括指示服务质量资源 预留操作和 /或网络地址转换控制操作;
[21] 操作指示发送模块, 用于发送所述操作指示确定模块确定的操作指示。
[22] 本发明实施例提供一种基于业务的策略决策功能实体, 包括:
[23] 操作指示识别模块, 用于接收消息并识别所述消息中携带的操作指示, 所述操 作指示包括指示服务质量资源预留操作和 /或网络地址转换控制操作;
[24] 操作执行模块, 用于根据所述操作指示识别模块的识别结果执行相应的操作。
[25] 本发明实施例提供一种操作指示系统, 包括:
[26] 应用功能实体, 用于在被触发后确定并发送携带操作指示消息, 所述操作指示 包括指示服务质量资源预留操作和 /或网络地址转换控制操作;
[27] 基于业务的策略决策功能实体, 用于接收并识别所述应用功能实体发送的消息 中的操作指示, 根据所述操作指示执行相应的操作。
[28] 由上述本发明实施例提供的技术方案可以看出, 本发明实施例通过在应用功能 实体与基于业务的策略决策功能实体交互的消息中增加表示操作指示的字段, 使所述基于业务的策略决策功能实体能快速简便的识别是需要执行 QoS资源预留 , 还是 NAT控制操作, 或者两者都做, 增加了操作的灵活性, 降低了实现的复 杂度。
[29] 附图简要说明
[30] 为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实施例或 现有技术描述中所需要使用的附图作一简单地介绍, 显而易见地, 下面描述中 的附图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出 创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。
[31] 图 1为现有技术 NGN中定义的 RACS架构图;
[32] 图 2为本发明实施例一流程图;
[33] 图 3为本发明实施例二流程图;
[34] 图 4为本发明实施例三流程图;
[35] 图 5为本发明实施例五结构示意图。 [36] 实施本发明的方式
[37] 下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是全部 的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有作出创造性劳 动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
[38] 本发明实施例通过扩展应用功能实体与基于业务的策略决策实体之间的接口, 在所述接口消息中增加操作指示字段, 使所述基于业务的策略决策实体可以根 据所述操作指示快速准确识别需要执行的具体操作。
[39] 所述两实体可以为应用功能实体与基于业务的策略决策功能实体。
[40] 下面的实施例以 TISPAN (电信和互联网融合业务及高级网络协议) 系统的 AF 和 SPDF两实体为例进行说明。 通过扩展 AF与 SPDF之间的接口 Gq', 在 Gq'的 AA R消息中增加操作指示 Operation-Indication
AVP, 使 SPDF能区分所述 AF需要执行的是 NAT控制还是 QoS资源预留, 或者两 者都需要执行。
[41] 在 ETSI TISPAN RTS 183
017 (欧洲电信标准化协会, 电信和互联网融合业务及高级网络协议) 规定的 AF 与 SPDF之间的接口 Gq'上, 增加了 Operation-Indication
AVP (操作指示字段) 后的 AAR消息, 一种实施例的定义如下:
<AA Request> ::= < Diameter Header: 265, REQ, PXY >
< Session Id > (会话标识)
{ Auth Application Id } (应用标识)
{ Origin Host } (源主机)
{ Origin Realm } (源域)
{ Destination Realm } (目的域)
[Operation-Indication] (NAT和 /或 QoS的操作指示)
*[ Media Component Description ] (媒体咅 牛描述)
*[ Flow Grouping ] (流分组)
[ AF Charging Identifier ] (AF计费标识) [52] [ SIP Forking Indication ] (SIP分叉指示)
[53] *[ Specific Action ] (特定操作)
[54] [ User Name ] (用户名)
[55] [ Binding Information ] (绑定信息)
[56] [ Latching Indication ] (锁定指示)
[57] [ Reservation Priority ] (预留优先级)
[58] [ Globally Unique Address ] (全局统一地址)
[59] [ Authorization Lifetime ] (授权生命期)
[60] *[ Proxy Info ] (代理信息)
[61] * [ Route Record ] (路由记录)
[62] *[ AVP ]其它属性值对 (AVP, attribute-value pair)
[63] Operation-Indication的 AVP消息格式可以是整型 32位的, 可以定义为:
[64] NAT(O): 表示 NAT功能指示;
[65] QoS (1): 表示 QoS功能指示;
[66] NAT(O)和 QoS (1): 指示同吋做 NAT和 QoS。
[67] 上述只是一种实例, 实际操作中可以根据需要设定不同的值代表不同的指示。
[68] 下面以不同实施例详细说明所述 Operation-Indication AVP的应用。
[69] 实施例一为需要 QoS资源预留的情况, 预先设定 Operation-Indication值为 1吋, 表示需要 SPDF进行 QoS资源预留操作; 如图 2所示, 具体包括如下操作:
[70] 步骤 1 : AF被触发向 SPDF发送携带操作指示的 AAR;
[71] 所述 AF可以根据接收到的触发消息被触发, 该触发消息可以包括: 会话信令 消息或 AF本身的内部操作消息, 具体的触发类型可以是资源请求, 资源修改等
[72] 依据组网, 所述 AF具体可以为 P-CSCF或 IBCF。
[73] 所述 AF被触发后, AF依据本地策略获取到需要对用户进行 QoS资源预留操作 , 则 AF获取本地 QoS资源预留操作指示 Operation-Indication, 并携带所述操作指 示向 SPDF发送 AAR;
[74] 步骤 2: 所述 SPDF获取来自 AF的 AAR, Operation-Indication值为" 1", 则可确定 需要进行 QoS资源预留操作, 在所述 QoS资源预留成功后, 向 AF返回成功的 AA A (AA- Answer, AAR消息的响应) 消息;
[75] SPDF依据 AF (P-CSCF或 IBCF) 的指示与 C-BGF、 I-BGF交互完成 QoS资源预 留;
[76] 步骤 3: AF接收来自 SPDF的 AAA后, 执行后续处理。
[77] 上述实施例为通过在 AF发送的 AAR消息中携带指示 QoS资源预留操作指示, 使 得 SPDF可以根据所述操作指示执行具体的操作, 增加了操作的灵活性, 且实现 简便易于实现。
[78] 实施例二为需要 NAT控制的情况, 预先设定 Operation-Indication值为 0吋, 表示 需要 SPDF进行 NAT控制操作; 如图 3所示, 具体包括如下操作:
[79] 步骤 1 : AF被触发向 SPDF发送携带操作指示的 AAR;
[80] 所述 AF可以由收到的会话信令消息触发或由 AF本身的内部操作触发, 具体的 触发类型可以是资源请求, 资源修改等;
[81] 依据组网, 所述 AF具体可以为 P-CSCF或 IBCF。
[82] 所述 AF被触发后, 依据本地策略获取到需要对用户执行 NAT控制, 则获取到 本地 NAT控制操作指示 Operation-Indication, 并携带所述操作指示向 SPDF发送 A AR;
[83] 步骤 2: 所述 SPDF获取来自 AF的 AAR, Operation-Indication值为 "0", 则可确定 需要进行 NAT控制操作, 在所述 NAT控制操作成功后, 向 AF返回成功的 AAA消 息;
[84] SPDF依据 AF (P-CSCF或 IBCF) 的指示与 C-BGF、 I-BGF交互完成 NAT控制操 作;
[85] 步骤 3: AF接收来自 SPDF的 AAA后, 执行后续处理。
[86] 上述实施例为在 AF需要 SPDF执行本地 NAT控制吋, 通过在 AAR消息中携带指 示 NAT控制操作的指示, 使得 SPDF可以根据所述操作指示执行具体的操作, 增 加了操作的灵活性, 且实现简便易于实现。
[87] 实施例三为既需要 QoS资源预留, 又需要 NAT控制的情况, 预先设定 Operation- Indication值为 0吋 ' 表示需要 SPDF进行 NAT控制操作; Operation-Indication值为 1 吋, 表示需要 SPDF进行 QoS资源预留操作; 如图 4所示, 具体包括如下操作: [88] 步骤 1 : AF被触发向 SPDF发送携带操作指示的 AAR;
[89] 所述 AF可以由收到的会话信令消息触发或由 AF本身的内部操作触发, 具体的 触发类型可以是资源请求, 资源修改等;
[90] 依据组网, 所述 AF具体可以为 P-CSCF或 IBCF。
[91] 所述 AF被触发后, 依据本地策略获取本地 NAT控制操作指示 Operation-Indicatio n, 并携带所述操作指示向 SPDF发送 AAR;
[92] 步骤 2: 所述 SPDF获取来自 AF的 AAR, Operation-Indication值为" 0"和" 1", 贝 IJ 可确定既需要 QoS资源预留, 又需要 NAT控制, 在所述 QoS资源预留及 NAT控制 操作成功后, 向 AF返回成功的 AAA消息;
[93] SPDF依据 AF (P-CSCF、 IBCF) 的指示与 C-BGF、 I-BGF交互完成 QoS资源预 留和 NAT操作;
[94] 步骤 3: AF接收来自 SPDF的 AAA后, 执行后续处理。
[95] 上述实施例中, AF通过在发送给 SPDF的 AAR消息中携带表示操作指示的字段
, 使得 SPDF可以根据所述指示执行相应的操作, 实现简便, 增加了操作的灵活 性, 降低了实现复杂度。
[96] 本发明实施例四为操作指示值缺省的情况, AF没有发送指示值 "0"或" 1"给 SPD
F, 但是存在 NAT绑定, 将会导致 SPDF默认同吋执行 QoS资源预留和 NAT操作。 若不存在 NAT绑定吋, 也不存在操作指示吋, 则执行 QoS资源预留。
[97] 本发明实施例五提供一种操作指示系统, 本实施例所述系统组成如图 5所示, 包括应用功能实体、 基于业务的策略决策实体。
[98] 所述应用功能实体, 用于在被触发情况下确定并发送携带操作指示的 AAR消息
, 所述操作指示包括指示 QoS资源预留操作和 /或 NAT控制操作; 为完成所述功 能, 所述应用功能实体至少包括如下模块:
[99] 操作指示确定模块, 用于确定操作指示, 可以根据本地策略获取所述操作指示
, 所述操作指示可以为: 指示执行 QoS资源预留和 /或 NAT控制操作;
[100] 操作指示发送模块, 用于发送所述操作指示确定模块获取的操作指示, 可以通 过将所述操作指示携带于 AAR消息中发送。 [101] 依据组网, 所述应用功能实体可以为 P-CSCF或 IBCF。
[102] 所述基于业务的策略决策实体, 用于接收并识别所述应用功能实体发送的消息 中的操作指示, 所述操作指示包括指示 QoS资源预留操作和 /或 NAT控制操作, 根据所述操作指示执行相应的操作; 为完成所述功能, 所述基于业务的策略决 策实体至少包括:
[103] 操作指示识别模块, 用于接收消息并识别所述消息中携带的操作指示, 所述操 作指示包括指示 QoS资源预留操作和 /或 NAT控制操作;
[104] 操作执行模块, 用于根据所述操作指示识别模块的识别结果执行具体的操作。
[105] 综上所述, 本发明实施例通过扩展 AF与 SPDF之间的接口, 在 AAR消息中增加 表示操作指示的 Operation-Indication
AVP, 使 SPDF能快速简便的识别是需要执行 QoS资源预留还是 NAT控制操作, 增加了操作的灵活性, 降低了实现的复杂度。
[106] 虽然上面描述的仅仅是实施例, 但并不意味着本发明的保护范围仅限于所述的 实施例。 基于本发明中的实施例, 本领域普通技术人员在没有作出创造性劳动 前提下通过修改、 等同、 替代所获得的所有其他实施例, 都属于本发明保护的 范围。

Claims

权利要求书
[1] 一种操作指示方法, 其特征在于, 包括:
应用功能实体接收到触发消息后, 确定操作指示, 所述操作指示包括指示 服务质量资源预留操作和 /或网络地址转换控制操作;
应用功能实体发送所述操作指示给基于业务的策略决策功能实体; 基于业务的策略决策功能实体接受并识别所述操作指示, 并根据所述操作 指示执行相应的操作。
[2] 如权利要求 1所述的方法, 其特征在于, 所述确定操作指示的方法包括: 所述应用功能实体根据本地策略确定所述操作指示。
[3] 如权利要求 1所述的方法, 其特征在于, 所述发送所述操作指示的方法包括 将所述操作指示承载于认证授权请求 AAR消息中发送。
[4] 如权利要求 1至 3任一项所述的方法, 其特征在于, 所述方法还包括:
预先确定操作指示与所述服务质量资源预留操作和 /或网络地址转换控制操 作之间的对应关系。
[5] 一种应用功能实体, 其特征在于, 包括:
操作指示确定模块, 用于确定操作指示, 所述操作指示包括指示服务质量 资源预留操作和 /或网络地址转换控制操作;
操作指示发送模块, 用于发送所述操作指示确定模块确定的操作指示。
[6] 一种基于业务的策略决策功能实体, 其特征在于, 包括:
操作指示识别模块, 用于接收消息并识别所述消息中携带的操作指示, 所 述操作指示包括指示服务质量资源预留操作和 /或网络地址转换控制操作; 操作执行模块, 用于根据所述操作指示识别模块的识别结果执行相应的操 作。
[7] 一种操作指示系统, 其特征在于, 包括:
应用功能实体, 用于在被触发后确定并发送携带操作指示消息, 所述操作 指示包括指示服务质量资源预留操作和 /或网络地址转换控制操作; 基于业务的策略决策功能实体, 用于接收并识别所述应用功能实体发送的 消息中的操作指示, 根据所述操作指示执行相应的操作。
[8] 如权利要求 7所述的系统, 其特征在于, 所述应用功能实体进一步包括: 操作指示确定模块, 用于确定操作指示, 所述操作指示包括指示服务质量 资源预留操作和 /或网络地址转换控制操作;
操作指示发送模块, 用于发送所述操作指示确定模块确定的操作指示。
[9] 如权利要求 7或 8所述的系统, 其特征在于, 所述基于业务的策略决策功能 实体进一步包括:
操作指示识别模块, 用于接收消息并识别所述消息中携带的操作指示, 所 述操作指示包括指示服务质量资源预留操作和 /或网络地址转换控制操作; 操作执行模块, 用于根据所述操作指示识别模块的识别结果执行相应的操 作。
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