WO2009049457A1 - Iptv network interconnecting architecture and interconnecting method - Google Patents
Iptv network interconnecting architecture and interconnecting method Download PDFInfo
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- WO2009049457A1 WO2009049457A1 PCT/CN2007/003882 CN2007003882W WO2009049457A1 WO 2009049457 A1 WO2009049457 A1 WO 2009049457A1 CN 2007003882 W CN2007003882 W CN 2007003882W WO 2009049457 A1 WO2009049457 A1 WO 2009049457A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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- the present invention relates to an IPTV network, and in particular to an IPTV network interconnection architecture and interconnection method, which mainly relates to a Non-NGN-Based IPTV network and an NGN-Based IPTV network interconnection. Specifically, including roaming and interconnection with third-party providers. Background technique
- IPTV is an interactive network TV. It is a brand-new technology that utilizes a broadband cable TV network and integrates various technologies such as Internet, multimedia, and communication to provide home users with a variety of interactive services including digital TV. Typically, users can enjoy IPTV services in two ways at home: (1) computers, (2) network set-top boxes + regular TV sets.
- One of the characteristics of IPTV is to use the infrastructure of broadband cable television networks to provide home TV sets as the main terminal appliances and to provide a variety of digital media services including television programs through Internet Protocol.
- IPTV involves a variety of value-added services, and these value-added services are beyond the scope of traditional telecommunication services, involving all aspects of the industry chain, many of which involve the work of third-party services, and therefore, for IPTV networks. It is necessary to conduct roaming and interaction with third-party service providers.
- IPTV Focus Group IPTV Focus Group
- Non-NGN-Based lPTV network architecture (2) NGN-Based IPTV (without IMS) network architecture
- NGN-Based IPTV (with IMS) network architecture The architecture diagram corresponding to the three types of IPTV architecture is given in the working document "Working Document: IPTV Architecture" of the ITU-T IPTV Focus Group. Is a simplified diagram of figure8-2 in the working document, which describes the IPTV functional architecture of Non-NGN-BASED, and Figure 2 is a simplified diagram of figure8-3 in the working document, which describes the IPTV of NGN-BASED Functional Architecture (without IMS), Figure 3 is a simplified diagram of figure 8-4 in this working document, which describes the IPTV functional architecture of NGN-BASED (with IMS). In the working document The IPTV network interconnection and third-party access based on NGN (Next Generation Network) are given.
- NGN Next Generation Network
- NGN refers to the next generation network.
- PSTN public switched telephone network
- NGN is gradually turning to packet switching in the traditional PSTN (public switched telephone network) network. Mainly, it carries all the services of the original PSTN network, and at the same time, a large amount of data transmission of 4 bar is offloaded into the IP network to alleviate the heavy load of the PSTN network, and new and old services are added and enhanced with the new features of IP technology.
- the IPTV network is based on the Non-NGN functional architecture.
- NGN interoperability with existing and future networks is an important aspect of seamless operation between networks.
- the progressive realization of the NGN network is made possible, and the user can obtain rich NGN services and at the same time obtain the services provided by the traditional network.
- NGN networks must coexist with existing telecommunications networks and must rely on these networks.
- NGN is one of the carrier-class service networks of telecom operators.
- IP networks are a planar model network architecture, it is difficult for NGN networks to construct with a single or purely planar model network architecture. The network. Between different operators, the NGN network is required to be divided into different transmission domains, control domains, and management domains.
- an IPTV network interconnection architecture for interconnecting IPTV networks of different standards, including an end user functional entity, an application functional entity, a content transmission functional entity, a network functional entity or a transmission functional entity, wherein , network function entity or transport function entity
- the step includes a boundary function entity, the boundary function entity is connected to the core function entity in the network function entity or the transport function entity, and the transport layer interconnection when the IPTV network interconnection of different standards is implemented by the interconnection of the boundary function entities.
- the foregoing boundary function entity is configured to implement at least one of the following functions: data transmission connection, routing, network address and port conversion, media stream relay, and firewall function.
- the boundary function entity can implement the above functions by executing a border gateway protocol.
- IPTV networks include: IPTV networks that are not based on next-generation networks, and IPTV networks that are based on next-generation networks.
- IPTV network interconnection method for interconnection of an IPTV network not based on a next generation network and an IPTV network based on a next generation network.
- the method includes the following processes: setting a first boundary function entity in a network function entity of a network architecture of a non-next network-based IPTV network, and setting a second in a transport function entity of a network architecture of the IPTV network based on the next generation network a boundary function entity, where the first boundary function entity and the second boundary function entity are used to implement at least one of the following functions: data transmission connection, routing, network address and port conversion, media stream relay, and firewall function; A boundary functional entity and a second boundary functional entity are interconnected to implement interconnection of a non-next-generation network-based IPTV network and an IPTV network transport layer based on the next J network.
- the above method further processes the following: In the network architecture of the IPTV network that is not based on the next generation network, a service control function entity controls a resource control function entity, requests resources and performs admission control through the first service control function entity; in a network architecture of the IPTV network based on the next generation network, controls resources and standards through the second service control function entity The control function entity; the communication between the IPTV service control function entity of the first service control function entity and the second service control function entity is implemented by the interconnection of the SCF, and the resource control information interaction of the two networks is implemented through a control or a session protocol.
- the above method further processes the following: resource control function in the network architecture of the IPTV network that is not based on the next network
- resource control function entity in the network architecture of the IPTV network that is not based on the next network
- the interaction of the resource and the admission control function entity of the network architecture of the entity and the IPTV network based on the next generation network realizes the resource control information interaction of the two networks.
- the resource control function entity and the interface between the resource and the admission control function entity are used to request the network resource of the home network or the visited network; the resource of the home network or the visited network and the admission control function entity or the resource control function entity are respectively used for Requesting network resources from the resource control function entity or the resource and admission control function entity of the other network.
- the above method further includes the following processing: in the network architecture of the IPTV network that is not based on the next generation network, by the first The service control function entity controls the resource control function entity; in the network architecture of the IPTV network based on the next generation network, the resource and the admission control function entity are controlled by the second service control function entity; the first service control function entity and the second The IPTV service control function entities of the service control function entity implement resource control information interaction between the two networks through a control or session protocol.
- the application function entity and the content providing function entity of the third-party service provider can provide the IPTV service; the third-party service provider requests the network resource from the resource and the admission control function entity, and the service control function entity of the home network provides the resource to the resource.
- the control function entity requests network resources.
- Figure 1 is a related technology of Non-NGN-BASED (non-generation based network)
- FIG. 1 Schematic diagram of the IPTV network function architecture
- Figure 2 is a schematic diagram of the IPTV network functional architecture of the NGN-BASED (based on the next generation network) without the IMS (IP multimedia subsystem)
- 3 is a schematic diagram of an IPTV functional architecture with IMS of NGN-BASED according to the related art
- FIG. 4 is a schematic diagram of a Non-NGN-BASED (non-next-generation network-based) IPTV network interconnection architecture of the system embodiment of the present invention
- Figure 5 is a schematic diagram of an NGN-BASED (Next Generation Network-based) IPTV network interconnection architecture without IMS in accordance with an embodiment of the present invention
- Figure 6 is an IMS-BASED IMS with IMS in accordance with an embodiment of the present invention
- FIG. 7 is a flowchart of an IPTV network interconnection method according to an embodiment of the method of the present invention
- FIG. 8 is an NGN-BASED IPTV network according to an embodiment of the present invention.
- FIG. 9 Schematic diagram of interconnection of IPTV network (with SCF) of Non-NGN-BASED
- FIG. 9 is a schematic diagram of interconnection of IPTV network of NGN-BASED and IPTV network of Non-NGN-BASED (without SCF) according to an embodiment of the present invention
- 10 is a schematic diagram of an IPTV network of Non-NGN-BASED and an NGN third party service provider interconnection according to an embodiment of the present invention
- FIG. 11 shows an IPTV network of NGN-BASED and an IPTV network of Non-NGN-BASED; Implementation process of roaming of on-demand services when interconnected.
- the End-User Function provides an interface between the end user and the IPTV network.
- the Application Function provides the End-User Function (EUF) for the IPTV content. Interface for selection and operation.
- a Service Control Function (SCF) is used to request and release network and service resources used to support IPTV services. For example, it can request a Content Delivery Function (CDF) in a content transmission and storage function entity. (Content Delivery & Storage function, CDSF) allocates the capacity required to store content.
- CDF Content Delivery Function
- CDSF Content Delivery & Storage function
- the Transport Function (TF) of the requesting network and the Control Function (CF) reserve network bandwidth for the media stream.
- Network attachment control function NACF is mainly responsible for assigning IP addresses to user terminals and transmitting other network configuration parameters to user terminals.
- Resource & Admission Control Function is an important function located on the bearer control layer. It shields the service layer from the specific details of the transport network, and supports the separation of service control and transport functions. And admission control to ensure that users use the transmission network resources correctly and reasonably.
- the present invention includes, in addition to an End User Function Entity (EUF), an Application Function Entity (AF), a Content Transfer Function Entity (CDF), a Network Function Entity (NF), or a transmission.
- EUF End User Function Entity
- AF Application Function Entity
- CDF Content Transfer Function Entity
- NF Network Function Entity
- TF Boarder Function
- the BF can be located in the NF or TF, and is connected to a Core Transport Facility (CTF).
- CTF Core Transport Facility
- the foregoing BF entity is configured to implement at least one of the following functions: data transmission connection, routing, network address and port conversion, media stream relay, and firewall function.
- the BF can implement the foregoing functions by performing a Border Gateway Protocol (BGP) or the like.
- BGP Border Gateway Protocol
- 4 shows an IPTV network architecture of Non-NGN-BASED according to an embodiment of the present invention. As shown in FIG. 4, BF is located in NF and is connected to CTF; FIG. 5 shows NGN according to an embodiment of the present invention.
- FIG. 5 shows an IMS-enabled IPTV functional architecture of NGN-BASED according to an embodiment of the present invention, such as Figure 6, shown in the BF bit TF, and connected to the CTF.
- Figure 6 shows an IMS-enabled IPTV functional architecture of NGN-BASED according to an embodiment of the present invention, such as Figure 6, shown in the BF bit TF, and connected to the CTF.
- the connections between the CTFs are achieved by interconnections between the BFs.
- the method embodiment provides an IPTV network interconnection method according to the method embodiment of the present invention.
- the interconnected network is a non-NGN network, and the other network is an NGN network.
- the core IMS or IPTV service control function of the NGN network depends on the capabilities of the network.
- the method includes the following processing: Step S702, setting a first BF (Boundary Function Entity) in a NF of a network architecture of a Non-NGN-BASED IPTV network, and a network of an IPTV network in the NGN-BASED A second BF is set in the TF of the architecture, where the first BF and the second BF are used to implement at least one of the following functions: data transmission connection, routing, network address and port conversion, media stream relay, and firewall function; Step S704, interconnecting the first BF and the second BF to implement Non-NGN-BASED
- Step S702 interconnecting the first BF and the second BF to implement Non-NGN-BASED
- FIG. 8 shows a schematic diagram (roaming) of interconnection between an NGN-BASED IPTV network and a Non-NGN-BASED IPTV network (with SCF).
- the resource control function (Resource Control, RC) is controlled by the SCF.
- the SCF requests resources and the Resource & Admission Control Function (RACF), and the communication between the ISCFs in the two network SCFs is realized through the interconnection of the SCF, and The resource control information interaction of the two networks is completed by a control or a session protocol (C/S Protocol).
- RCF Resource & Admission Control Function
- the above method further includes the following processing: In the network architecture of the Non-NGN-BASED IPTV network, the SCF (referred to as the first) SCF) Control RC; In the network architecture of the NGN-BASED IPTV network > Control the RACF through the SCF (referred to as the second SCF); pass between the IPTV Service Control Function Entity (ISCF) of the first SCF and the second SCF
- the control or session protocol implements resource control information interaction between the two networks.
- Example 2 Figure 9 shows an interconnection diagram (roaming) of an NGN-BASED IPTV network and a Non-NGN-BASED IPTV network (without SCF).
- the interconnection between the two networks is required.
- the resource-controlled interaction information is transmitted through the interaction between Non-NGN-BASED's RC and NGN-BASED's IPTV network's RACF (Resource and Admission Control Subsystem).
- the above method further includes the following processing: RC and NGN-BASED IPTV network in the network architecture of the IPTV network through the Non-NGN-BASED
- the RACF interaction of the network architecture implements resource control information interaction between the two networks.
- FIG. 10 shows a schematic diagram of a Non-NGN-BASED IPTV network and an NGN third party service provider interconnection.
- the use of core IMS or IPTV service control functions by third-party providers depends on the capabilities of third-party networks. Both the application function (AF) and the content providing function (CDF) of the third-party service provider can provide the IPTV service.
- AF application function
- CDF content providing function
- the third-party service provides a network resource to its RACF functional entity, and the service control function of the home network requests network resources from its resource control function.
- the resource control information interaction between the two networks is performed by the ISCF between the two network SCFs through control or C/S Protocol.
- the above method further includes the following processing:
- SCF In the network architecture of the Non-NGN-BASED IPTV network, SCF (referred to as the first SCF) controls RC; in the network architecture of the NGN-BASED IPTV network, the RACF is controlled by the SCF (referred to as the second SCF); the first service control function entity and the second service control function entity
- the communication between the IPTV service control function entities is implemented by the interconnection of the SCF, and the IPTV service control function entity (ISCF) of the first SCF and the second SCF implement resource control information interaction between the two networks through a control or session protocol.
- ISCF IPTV service control function entity
- FIG. 11 shows an implementation process of roaming of a content on demand (VOD) when an NGN-BASED IPTV network is interconnected with a Non-NGN-BASED IPTV network. As shown in Figure 10, the following processing can be included (1-11):
- the IPTV terminal obtains an IP address through an Access Network Function (ANF), authentication, and IP Address Assignment (AIA);
- ANF Access Network Function
- AIA IP Address Assignment
- ANF establishes an IP address for the IPTV terminal to establish a connection.
- the ANF acquires the user policy rule from the RACF of the home network, and opens the signaling channel by accessing the resource control function (RC) of the network;
- RC resource control function
- the IPTV terminal registers on the IMS in the home network by performing a SIP registration mechanism
- the IPTV terminal sends a SIP INVITE message to the Core IMS to request an IPTV application session, and the Core IMS sends the message to the application function (AF, Application Functions);
- the application function AF, Application Functions
- the AF requests resource allocation for the IPTV terminal to the Content Delivery Function (CDF) signaling;
- CDF Content Delivery Function
- the Content Delivery Function requests resource allocation from the IPTV terminal to the Core IMS; the Core IMS sends the IPTV body information to the home RACF, and the RC in the home RACF request visited network opens the access to the IPTV media stream.
- the access network (AN) channel is transmitted to the AN through this channel 4 bar Policy rules;
- the IPTV terminal requests the AF to send the media stream
- the AF request content delivery function starts to send the media stream; (11) the IPTV terminal receives the media stream sent by the IPTV from the CDF of the home network, and the media stream passes the CTF and the BF from the CDF of the home network. (Boundary Functional Entity) is transmitted to the IPTV terminal of the visited network.
- an IPTV network of different standards that is, an interconnection of a Non-NGN-Based IPTV network and an NGN-Based IPTV network, can be realized, thereby ensuring a smooth and stable transition of the network, thereby realizing network-to-network communication. Seamless operation.
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Abstract
An IPTV network interconnecting architecture and an interconnecting method for interconnecting some different type of IPTV networks. The IPTV network interconnecting architecture includes a terminal user function entity, an application function entity, a content delivery function entity, a network function entity or a transport function entity, and the network function entity or the transport function entity further includes a border function entity connected to a core transport function entity of the network function entity or the transport function entity, with which the transport layers of these different type of IPTV networks could be interconnected .
Description
IPTV网络互连架构及互连方法 技术领域 本发明涉及 IPTV网络, 具体地, 涉及 IPTV网络互连架构及互连方法, 其主要针对 Non-NGN-Based IPTV网络和 NGN-Based IPTV网络互连情况, 具体包括漫游情况以及与第三方提供商互连情况。 背景技术 TECHNICAL FIELD The present invention relates to an IPTV network, and in particular to an IPTV network interconnection architecture and interconnection method, which mainly relates to a Non-NGN-Based IPTV network and an NGN-Based IPTV network interconnection. Specifically, including roaming and interconnection with third-party providers. Background technique
IPTV即交互式网络电视, 是一种利用宽带有线电视网, 集互联网、 多 媒体、 通讯等多种技术于一体, 向家庭用户提供包括数字电视在内的多种交 互式服务的崭新技术。 通常, 用户在家中可以有两种方式享受 IPTV服务: (1 )计算机, (2 ) 网络机顶盒 + 普通电视机。 IPTV的特点之一就是利用宽带有线电视网的基 础设施, 以家用电视机作为主要终端电器, 通过互联网络协议来提供包括电 视节目在内的多种数字媒体服务。 同时, IPTV涉及多种增值业务, 而这些增 值业务超出了传统电信业务的范畴, 涉及产业链的各个环节, 很多都涉及到 和第三方业务 'ί火伴的' ^作, 因此, 对 IPTV网络间的漫游以,及与第三方业务 提供商的交互技术进行研究是十分必要的„ IPTV is an interactive network TV. It is a brand-new technology that utilizes a broadband cable TV network and integrates various technologies such as Internet, multimedia, and communication to provide home users with a variety of interactive services including digital TV. Typically, users can enjoy IPTV services in two ways at home: (1) computers, (2) network set-top boxes + regular TV sets. One of the characteristics of IPTV is to use the infrastructure of broadband cable television networks to provide home TV sets as the main terminal appliances and to provide a variety of digital media services including television programs through Internet Protocol. At the same time, IPTV involves a variety of value-added services, and these value-added services are beyond the scope of traditional telecommunication services, involving all aspects of the industry chain, many of which involve the work of third-party services, and therefore, for IPTV networks. It is necessary to conduct roaming and interaction with third-party service providers.
ITU-T的研究小组 - IPTV焦点工作小组 ( IPTV Focus Group ) 居网络 的组成和技术提出将 IPTV体系功能架构分为三类: The ITU-T Research Group - IPTV Focus Group ( IPTV Focus Group ) The composition and technology of the network proposes to divide the functional architecture of the IPTV system into three categories:
( 1 ) Non-NGN-Based lPTV 网络架构 ( 2 ) NGN-Based IPTV (不带 IMS ) 网络架构 (1) Non-NGN-Based lPTV network architecture (2) NGN-Based IPTV (without IMS) network architecture
( 3 ) NGN-Based IPTV (带 IMS ) 网络架构 在 ITU-T的 IPTV Focus Group的工作文档" Working Document: IPTV Architecture"中给出了三类 IPTV体系架构对应的架构图, 其中, 附图 1是该 工作文档中的 figure8-2的简化图, 其描述了 Non-NGN-BASED 的 IPTV功 能架构,附图 2是该工作文档中的 figure8-3的简化图,其描述了 NGN-BASED 的 IPTV功能架构 (不带 IMS ), 附图 3是该工作文档中的 figure8-4的简化 图, 其描述了 NGN-BASED 的 IPTV功能架构 (带 IMS )。 在该工作文档中
给出了基于 NGN ( Next Generation Network, 下一" 网络) 的 IPTV网络互 连和第三方接入。 如上所述, NGN是指下一代网络。 所谓"下一代网络", 从字面上理解, 应该是以当前网络为基点的下一代网络。 从发展的角度来看, NGN是在传统 的以电路交换为主的 PSTN ( public switched telephone network, 公共交换电 话网络) 网络中逐渐转向了以分组交换为主, 它承载了原有 PSTN网络的所 有业务, 同时 4巴大量的数据传输卸载到 IP网络中以减轻 PSTN网络的重荷, 又以 IP技术的新特性增加和增强了许多新老业务。 现有的 IPTV网络是基于 Non-NGN功能架构的。 目前, "ί午多运营商逐 步引入 NGN- BASED的 IPTV网络, 但是这需要一个过程, 因此必然会存在 一个两种网絡共存的时期, 为了保证网络平滑稳定地发展和过渡, 有必要提 出两种网络互连的体系架构。 (3) NGN-Based IPTV (with IMS) network architecture The architecture diagram corresponding to the three types of IPTV architecture is given in the working document "Working Document: IPTV Architecture" of the ITU-T IPTV Focus Group. Is a simplified diagram of figure8-2 in the working document, which describes the IPTV functional architecture of Non-NGN-BASED, and Figure 2 is a simplified diagram of figure8-3 in the working document, which describes the IPTV of NGN-BASED Functional Architecture (without IMS), Figure 3 is a simplified diagram of figure 8-4 in this working document, which describes the IPTV functional architecture of NGN-BASED (with IMS). In the working document The IPTV network interconnection and third-party access based on NGN (Next Generation Network) are given. As mentioned above, NGN refers to the next generation network. The so-called "next generation network", literally understood, should It is a next-generation network based on the current network. From a development perspective, NGN is gradually turning to packet switching in the traditional PSTN (public switched telephone network) network. Mainly, it carries all the services of the original PSTN network, and at the same time, a large amount of data transmission of 4 bar is offloaded into the IP network to alleviate the heavy load of the PSTN network, and new and old services are added and enhanced with the new features of IP technology. The IPTV network is based on the Non-NGN functional architecture. At present, "the company has gradually introduced the NGN-BASES IPTV network, but this requires a process, so there must be a period when two networks coexist, in order to ensure the network. Smooth and stable development and transition, it is necessary to propose two network interconnection architecture.
NGN 和现有以及未来的各种网络互通是实现网络之间无缝操作的重要 方面。 通过 NGN和传统网洛互通, 使 NGN网络的逐步实现成为可能, 并且 使用户既能够获得丰富的 NGN业务, 同时又能够获得传统网络提供的业务。 为了确保提供端到端业务的能力, NGN 网络必须与现有的各种电信网络共 存, 并且必须依赖于这些网络。 此外, NGN作为电信运营商电信级业务网络 中的一种, 尽管 IP网络是一种平面模型的网络架构, 但是, 对于 NGN网络, 很难采用一种单一的或者纯平面模型的网络架构来构造该网络。 在不同的运 营商之间, 要求将 NGN 网络划分为不同的传输域、 控制域、 和管理域, 而 且, 每一个运营商的网络也需要划分为不同等级的运营域与管理域。 因此, 在不同类型的网络, 不同的运营商以及不同的控制 i或和管理 i或之间, 构造 NGN和各种网络之间的互通模型将是十分重要的。 目前, 尚未提供 NGN和各种网络之间的互通模型。 发明内容 考虑到相关技术中存在的上述问题而提出本发明, 即, 为了保证网络平 滑稳.定的过渡, 实现 NGN和现有各种网络互通以实现网络之间无缝操作。 据本发明, 首先提供了一种 IPTV 网络互连架构, 用于不同制式的 IPTV网络的互连, 包括终端用户功能实体、 应用功能实体、 内容传输功能实 体、 网络功能实体或传输功能实体, 其中, 网络功能实体或传输功能实体进
一步包括边界功能实体, 边界功能实体连接至网络功能实体或传输功能实体 中的核心传输功能实体,并且通过边界功能实体的互连实现不同制式的 IPTV 网络互连时的传输层互连。 、 其中, 上述边界功能实体用于实现以下功能至少之一: 数据传输连接、 路由选择、 网络地址和端口的转换、 媒体流中继和防火墙功能。 此外, 边界 功能实体可以通过执行边界网关协议来实现上述功能。 上述的不同制式的 IPTV网络包括: 非基于下一代网络的 IPTV网络、 基于下一代网络的 IPTV网络。 根据本发明, 还提供了一种 IPTV网络互连方法, 用于非基于下一代网 絡的 IPTV网络和基于下一代网络的 IPTV网络的互连。 该方法包括以下处理: 在非基于下一代网络的 IPTV网络的网络架构的 网络功能实体中设置第一边界功能实体, 并在基于下一代网络的 IPTV 网络 的网络架构的传输功能实体中设置第二边界功能实体, 其中, 第一边界功能 实体和第二边界功能实体用于实现以下功能至少之一: 数据传输连接、 路由 选择、 网络地址和端口的转换、 媒体流中继和防火墙功能; 将第一边界功能 实体和第二边界功能实体互连, 以实现非基于下一代网络的 IPTV 网络和基 于下一^ J网络的 IPTV网络传输层的互连。 在非基于下一代网絡的 IPTV网络的网络架构包括业务控制功能实.体的 情况下, 上述方法进一步包 4舌以下处理: 在非基于下一.代网络的 IPTV 网络 的网络架构中, 通过第一业务控制功能实体控制资源控制功能实体, 通过第 一业务控制功能实体请求资源和进行准入控制; 在基于下一代网络的 IPTV 网络的网络架构中, 通过第二业务控制功能实体控制资源和准入控制功能实 体; 第一业务控制功能实体和第二业务控制功能实体的 IPTV业务控制功能 实体之间的通信通过 SCF的互联实现,并通过控制或会话协议实现两种网络 的资源控制信息交互。 在非基于下一代网络的 IPTV网络的网络架构不包括业务控制功能实体 的情况下, 上述方法进一步包 4舌以下处理: 通过非基于下一^ ^网络的 IPTV 网络的网络架构中的资源控制功能实体和基于下一代网络的 IPTV 网絡的网 络架构的资源和准入控制功能实体的交互实现两种网络的资源控制信息交 互。
其中,资源控制功能实体和资源和准入控制功能实体间的接口用于请求 归属网络或拜访网络的网络资源; 归属网络或拜访网络的资源和准入控制功 能实体或资源控制功能实体分别用于向对方网络的资源控制功能实体或资源 和准入控制功能实体请求网络资源。 在非基于下一代网络的 IPTV网络和下一代网络第三方业务提供商互连 的情况下, 上述方法进一步包括以下处理: 在非基于下一 '代网络的 IPTV 网 络的网络架构中, 通过第一业务控制功能实体控制资源控制功能实体; 在基 于下一,代网络的 IPTV 网络的网络架构中, 通过第二业务控制功能实体控制 资源和准入控制功能实体; 第一业务控制功能实体和第二业务控制功能实体 的 IPTV业务控制功能实体之间通过控制或会话协议实现两种网络的资源控 制信息交互。 其中,第三方业务提供商的应用功能实体和内容提供功能实体均能够提 供 IPTV业务; 第三方业务提供商向其资源和准入控制功能实体请求网络资 源, 归属网络的业务控制功能实体向其资源控制功能实体请求网络资源。 通过本发明,可以实现不同制式的 IPTV网络,即 Non-NGN-Based IPTV 网络和 NGN-Based IPTV网络的互连, 保证网络平滑稳定的过渡, 从而实现 网络之间无缝操作。 本发明的其它特征和优点将在随后的说明书中阐述, 并且, 部分地从说 明书中变得显而易见, 或者通过实施本发明而了解。 本发明的目的和其他优 点可通过在所写的说明书、 权利要求书、 以及附图中所特别指出的结构来实 现和获得。 附图说明 附图用来提供对本发明的进一步理解, 并且构成说明书的一部分, 与本 发明的实施例一起用于解释本发明, 并不构成对本发明的限制。 在附图中: 图 1 是 居相关技术的 Non-NGN-BASED (非基于下一代网络的) 的NGN interoperability with existing and future networks is an important aspect of seamless operation between networks. Through the interworking of NGN and traditional network, the progressive realization of the NGN network is made possible, and the user can obtain rich NGN services and at the same time obtain the services provided by the traditional network. To ensure the ability to provide end-to-end services, NGN networks must coexist with existing telecommunications networks and must rely on these networks. In addition, NGN is one of the carrier-class service networks of telecom operators. Although IP networks are a planar model network architecture, it is difficult for NGN networks to construct with a single or purely planar model network architecture. The network. Between different operators, the NGN network is required to be divided into different transmission domains, control domains, and management domains. Moreover, each operator's network also needs to be divided into different levels of operational domains and administrative domains. Therefore, it is important to construct an interworking model between NGN and various networks between different types of networks, different operators, and different controls i or between management i or. Currently, an interworking model between NGN and various networks has not been provided. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems in the related art, that is, in order to ensure a smooth and stable transition of the network, NGN and existing various networks are interoperable to achieve seamless operation between networks. According to the present invention, an IPTV network interconnection architecture is first provided for interconnecting IPTV networks of different standards, including an end user functional entity, an application functional entity, a content transmission functional entity, a network functional entity or a transmission functional entity, wherein , network function entity or transport function entity The step includes a boundary function entity, the boundary function entity is connected to the core function entity in the network function entity or the transport function entity, and the transport layer interconnection when the IPTV network interconnection of different standards is implemented by the interconnection of the boundary function entities. The foregoing boundary function entity is configured to implement at least one of the following functions: data transmission connection, routing, network address and port conversion, media stream relay, and firewall function. In addition, the boundary function entity can implement the above functions by executing a border gateway protocol. The above different IPTV networks include: IPTV networks that are not based on next-generation networks, and IPTV networks that are based on next-generation networks. According to the present invention, there is also provided an IPTV network interconnection method for interconnection of an IPTV network not based on a next generation network and an IPTV network based on a next generation network. The method includes the following processes: setting a first boundary function entity in a network function entity of a network architecture of a non-next network-based IPTV network, and setting a second in a transport function entity of a network architecture of the IPTV network based on the next generation network a boundary function entity, where the first boundary function entity and the second boundary function entity are used to implement at least one of the following functions: data transmission connection, routing, network address and port conversion, media stream relay, and firewall function; A boundary functional entity and a second boundary functional entity are interconnected to implement interconnection of a non-next-generation network-based IPTV network and an IPTV network transport layer based on the next J network. In the case that the network architecture of the IPTV network that is not based on the next generation network includes the service control function, the above method further processes the following: In the network architecture of the IPTV network that is not based on the next generation network, a service control function entity controls a resource control function entity, requests resources and performs admission control through the first service control function entity; in a network architecture of the IPTV network based on the next generation network, controls resources and standards through the second service control function entity The control function entity; the communication between the IPTV service control function entity of the first service control function entity and the second service control function entity is implemented by the interconnection of the SCF, and the resource control information interaction of the two networks is implemented through a control or a session protocol. In the case that the network architecture of the IPTV network that is not based on the next generation network does not include the service control function entity, the above method further processes the following: resource control function in the network architecture of the IPTV network that is not based on the next network The interaction of the resource and the admission control function entity of the network architecture of the entity and the IPTV network based on the next generation network realizes the resource control information interaction of the two networks. The resource control function entity and the interface between the resource and the admission control function entity are used to request the network resource of the home network or the visited network; the resource of the home network or the visited network and the admission control function entity or the resource control function entity are respectively used for Requesting network resources from the resource control function entity or the resource and admission control function entity of the other network. In the case where the IPTV network that is not based on the next generation network and the third-party service provider of the next generation network are interconnected, the above method further includes the following processing: in the network architecture of the IPTV network that is not based on the next generation network, by the first The service control function entity controls the resource control function entity; in the network architecture of the IPTV network based on the next generation network, the resource and the admission control function entity are controlled by the second service control function entity; the first service control function entity and the second The IPTV service control function entities of the service control function entity implement resource control information interaction between the two networks through a control or session protocol. The application function entity and the content providing function entity of the third-party service provider can provide the IPTV service; the third-party service provider requests the network resource from the resource and the admission control function entity, and the service control function entity of the home network provides the resource to the resource. The control function entity requests network resources. Through the invention, the IPTV network of different standards, that is, the interconnection of the Non-NGN-Based IPTV network and the NGN-Based IPTV network can be realized, and the smooth and stable transition of the network is ensured, thereby achieving seamless operation between the networks. Other features and advantages of the invention will be set forth in the description which follows, and The objectives and other advantages of the invention will be realized and attained by the <RTI The drawings are intended to provide a further understanding of the invention, and are intended to be a part of the description of the invention. In the drawings: Figure 1 is a related technology of Non-NGN-BASED (non-generation based network)
IPTV网络功能架构示意图; 图 2是 居相关 4支术的 NGN-BASED (基于下一代网络的) 不带 IMS ( IP multimedia subsystem , IP多媒体子*** )的 IPTV网络功能架构示意图;
图 3是根据相关技术的 NGN-BASED的带 IMS的 IPTV功能架构示意 图; 图 4是 居本发明***实施例的 Non-NGN-BASED (非基于下一代网 络的 ) 的 IPTV网络互连架构的示意图; 图 5是.根据本发明***实施例的 NGN-BASED (基于下一代网络的) 不带 IMS的 IPTV网络互连架构的示意图; 图 6是根据本发明***实施例的 NGN-BASED的带 IMS的 IPTV网絡 互连架构的示意图; 图 7是 >据本发明方法实施例的 IPTV网络互连方法的流程图; 图 8 是根据本发明 实施例的 NGN-BASED 的 IPTV 网络与Schematic diagram of the IPTV network function architecture; Figure 2 is a schematic diagram of the IPTV network functional architecture of the NGN-BASED (based on the next generation network) without the IMS (IP multimedia subsystem); 3 is a schematic diagram of an IPTV functional architecture with IMS of NGN-BASED according to the related art; FIG. 4 is a schematic diagram of a Non-NGN-BASED (non-next-generation network-based) IPTV network interconnection architecture of the system embodiment of the present invention; Figure 5 is a schematic diagram of an NGN-BASED (Next Generation Network-based) IPTV network interconnection architecture without IMS in accordance with an embodiment of the present invention; Figure 6 is an IMS-BASED IMS with IMS in accordance with an embodiment of the present invention; Schematic diagram of an IPTV network interconnection architecture; FIG. 7 is a flowchart of an IPTV network interconnection method according to an embodiment of the method of the present invention; FIG. 8 is an NGN-BASED IPTV network according to an embodiment of the present invention.
Non-NGN-BASED的 IPTV网络(带 SCF ) 的互连示意图; 图 9 是根据本发明 实施例的 NGN-BASED 的 IPTV 网络与 Non-NGN-BASED的 IPTV网络 (不带 SCF ) 的互连示意图; 图 10是根据本发明实施例的 Non-NGN-BASED的 IPTV网络和 NGN 第三方业务提供商互连的示意图; 图 11示出了 NGN-BASED的 IPTV网络与 Non-NGN-BASED的 IPTV 网络互连时的点播业务的漫游的实现流程。 具体实施方式 首先说明在现有网络架构图 1-图 3中的几个比较重要的功能实体。终端 用户功能实体 ( End-User Function , EUF ) 提供了终端用户和 IPTV网络的 接口,应用功能实体( Application function , AF )为终端用户功能实体( End-User Function , EUF )提供了对 IPTV内容进行选择和操作的接口。 业务控制功能 实体 ( Service Control Function, SCF ) 用来请求和释放用来支持 IPTV业务 的网络和业务资源, 例如, 它可以请求内容传输功能实体 (Content delivery function , CDF ) 在内容传输和存储功能实体 ( Content Delivery & Storage function , CDSF ) 中分配存储内容需要的容量, 请求网络的传输功能实体 ( Transport Function, TF ) 和控制功能实体 ( Control Function, CF ) 为媒体 流预留网络带宽。 网络配置功能实体 ( Network attachment control function ,
NACF ) 主要负责为用户终端分配 IP地址, 并可以向用户终端传送其它网络 配置参数。 资源接纳 4空制功能实'体 ( Resource & Admission control function ' ACF ) 是位于承载控制层上的一个重要功能, 向业务层屏蔽传送网络的具 体细节, 支持业务控制与传送功能相分离, 通过资源和接纳的控制, 确保用 户正确合理的使用传送网络资源。 基于上述内容, 以下将结合附图对本发明的优选实施例进行说明, 应当 理解, 此处所描述的优选实施例仅用于说明和解释本发明, 并不用于限定本 发明。 ***实施例 ■据本发明实施例, 提供了一种 IPTV网络互连架构, 用于不同制式的Schematic diagram of interconnection of IPTV network (with SCF) of Non-NGN-BASED; FIG. 9 is a schematic diagram of interconnection of IPTV network of NGN-BASED and IPTV network of Non-NGN-BASED (without SCF) according to an embodiment of the present invention 10 is a schematic diagram of an IPTV network of Non-NGN-BASED and an NGN third party service provider interconnection according to an embodiment of the present invention; FIG. 11 shows an IPTV network of NGN-BASED and an IPTV network of Non-NGN-BASED; Implementation process of roaming of on-demand services when interconnected. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, several important functional entities in the existing network architecture diagrams 1 - 3 will be described. The End-User Function (EUF) provides an interface between the end user and the IPTV network. The Application Function (AF) provides the End-User Function (EUF) for the IPTV content. Interface for selection and operation. A Service Control Function (SCF) is used to request and release network and service resources used to support IPTV services. For example, it can request a Content Delivery Function (CDF) in a content transmission and storage function entity. (Content Delivery & Storage function, CDSF) allocates the capacity required to store content. The Transport Function (TF) of the requesting network and the Control Function (CF) reserve network bandwidth for the media stream. Network attachment control function NACF) is mainly responsible for assigning IP addresses to user terminals and transmitting other network configuration parameters to user terminals. Resource & Admission Control Function (ACF) is an important function located on the bearer control layer. It shields the service layer from the specific details of the transport network, and supports the separation of service control and transport functions. And admission control to ensure that users use the transmission network resources correctly and reasonably. Based on the above, the preferred embodiments of the present invention are described with reference to the accompanying drawings, and the preferred embodiments described herein are intended to illustrate and explain the invention. System Embodiments According to an embodiment of the present invention, an IPTV network interconnection architecture is provided for different standards.
IPTV网絡 ( Non-NGN-BASED的 IPTV网络、 NGN-BASED的 IPTV网络) 的互连。 相比于图 1-图 3 所示的现有架构, 本发明除了包括终端用户功能实体 ( EUF )、 应用功能实体 (AF )、 内容传输功能实体 (CDF )、 网络功能实体 ( NF ) 或传输功能实体 ( TF ), 还增加了边界功能实体 ( Boarder Function, 简称为 BF )。 其中, 该 BF可以.位于 NF或 TF中, 并连接至其中的核心传输 功能实体 ( Core transport fonction, CTF ), 通过 BF的互连可以实现不同制式 的 IPTV网络互连时的传输层互连。 其中, 上述 BF实体用于实现以下功能至少之一: 数据传输连接、 路由 选择、 网络地址和端口的转换、 媒体流中继和防火墙功能。 具体地, BF可以 通过执行边界网关协议( Border Gateway Protocol, BGP )等来实现上述功能。 图 4示出了 ■据本发明实施例的 Non-NGN-BASED的 IPTV网络架构, 如图 4所示, BF位于 NF中, 且连接至 CTF; 图 5示出了根据本发明实施例 的 NGN-BASED的不带 IMS的 IPTV功能架构, 如图 5所示, BF位 TF中, 且连接至 CTF; 图 6示出了根据本发明实施例的 NGN-BASED 的带 IMS的 IPTV功能架构, 如图 6所示, BF位 TF 中, 且连接至 CTF。 从图 4至图 6 可以看出, CTF之间的连接通过 BF之间的互连来实现。 方法实施例 才艮据本发明方法实施例, 提供了一种 IPTV 网络互连方法,
Non-NGN-BASED的 IPTV网络和 NGN-BASED的 IPTV网络的互连。其中, 互连的一方网络是非 NGN网络, 另一方网絡是 NGN网络, 该 NGN网络采 用核心 IMS或者 IPTV业务控制功能要取决于网络的能力。 如图 7所示, 该方法包括以下处理: 步骤 S702, 在 Non- NGN-BASED的 IPTV网络的网络架构的 NF中设 置第一 BF (边界功能实体), 并在 NGN-BASED的 IPTV网络的网络架构的 TF中设置第二 BF, 其中, 第一 BF和第二 BF用于实现以下功能至少之一: 数据传输连接、 路由选择、 网络也址和端口的转换、 媒体流中继和防火墙功 能; 步骤 S704 , 将第一 BF和第二 BF互连, 以实现 Non-NGN-BASED的Interconnection of IPTV networks (Non-NGN-BASED IPTV networks, NGN-BASED IPTV networks). Compared to the existing architecture shown in Figures 1-3, the present invention includes, in addition to an End User Function Entity (EUF), an Application Function Entity (AF), a Content Transfer Function Entity (CDF), a Network Function Entity (NF), or a transmission. The functional entity (TF) also adds a Boarder Function (BF). The BF can be located in the NF or TF, and is connected to a Core Transport Facility (CTF). The interconnection of the BF can realize the transport layer interconnection when the IPTV networks of different standards are interconnected. The foregoing BF entity is configured to implement at least one of the following functions: data transmission connection, routing, network address and port conversion, media stream relay, and firewall function. Specifically, the BF can implement the foregoing functions by performing a Border Gateway Protocol (BGP) or the like. 4 shows an IPTV network architecture of Non-NGN-BASED according to an embodiment of the present invention. As shown in FIG. 4, BF is located in NF and is connected to CTF; FIG. 5 shows NGN according to an embodiment of the present invention. -BASED's IPTV functional architecture without IMS, as shown in Figure 5, in the BF-bit TF, and connected to the CTF; Figure 6 shows an IMS-enabled IPTV functional architecture of NGN-BASED according to an embodiment of the present invention, such as Figure 6, shown in the BF bit TF, and connected to the CTF. As can be seen from Figures 4 to 6, the connections between the CTFs are achieved by interconnections between the BFs. The method embodiment provides an IPTV network interconnection method according to the method embodiment of the present invention. The interconnection of the Non-NGN-BASED IPTV network and the NGN-BASED IPTV network. The interconnected network is a non-NGN network, and the other network is an NGN network. The core IMS or IPTV service control function of the NGN network depends on the capabilities of the network. As shown in FIG. 7, the method includes the following processing: Step S702, setting a first BF (Boundary Function Entity) in a NF of a network architecture of a Non-NGN-BASED IPTV network, and a network of an IPTV network in the NGN-BASED A second BF is set in the TF of the architecture, where the first BF and the second BF are used to implement at least one of the following functions: data transmission connection, routing, network address and port conversion, media stream relay, and firewall function; Step S704, interconnecting the first BF and the second BF to implement Non-NGN-BASED
IPTV网络和 NGN-BASED的 IPTV网络传输层的互连。 实例 1 图 8示出了 NGN-BASED的 IPTV网络与 Non-NGN-BASED的 IPTV 网络 (带 SCF ) 的互连示意图 (漫游)。 如图 8 所示, 在两种网络互连需要 交互资源和准入控制信息时,在带有 SCF的 Non-NGN-BASED的 IPTV网络 中, 通过 SCF控制资源控制功能(Resource Control, RC ), 在 NGN-BASED 的 IPTV 网络中, 通过 SCF 请求资源和进 准入 4空制功能 (Resource & Admission control function, RACF ) , 并且两个网络 SCF中的 ISCF之间的通 信通过 SCF的互联实现, 并通过控制或者会话协议 ( C/S Protocol )来完成两 种网络的资源控制信息交互。 这样, 在 Non-NGN-BASED的 IPTV网絡的网络架构包括 SCF的情况 下, 上述方法进一步包括以下处理: 在 Non-NGN-BASED的 IPTV网络的网 络架构中, 通过其中的 SCF (记为第一 SCF ) 控制 RC; 在 NGN-BASED的 IPTV网络的网络架构中 > 通过其中的 SCF (记为第二 SCF )控制 RACF; 第 一 SCF和第二 SCF的 IPTV业务控制功能实体 ( ISCF )之间通过控制或会话 协议实现两种网络的资源控制信息交互。 实例 2 图 9示出了 NGN-BASED的 IPTV网络与 Non-NGN-BASED的 IPTV 网络 (不带 SCF ) 的互连示意图 (漫游)。 如图 9 所示, 在两种网络互连需
要交互资源和准入控制信息时, 通过 Non-NGN-BASED 的 RC 和 NGN-BASED的 IPTV 网络的 RACF (资源和准入控制子***) 的交互传输 资源控制的交互信息。 这样, 在 Non-NGN-BASED的 IPTV网络的网络架构不包括 SCF的情 况下, 上述方法进一步包括以下处理: 通过 Non-NGN-BASED的 IPTV网络 的网络架构中的 RC和 NGN-BASED的 IPTV网络的网络架构的 RACF的交 互实现两种网络的资源控制信息交互。 资源控制功能和 RACF功能实体间的接口用来请求一方 (如拜访网络) 的网络资源。 另一方 (比如归属网络) 的 RACF向对方 (拜访网络) 的资源 控制功能请求对方 (比如拜访网络) 的网络资源。 实例 3 图 10示出了 Non-NGN-BASED的 IPTV网络和 NGN第三方业务提.供 商互连的示意图。 其中, 第三方提供商釆用核心 IMS或者 IPTV业务控制功 能要取决于第三方网络的能力。 第三方业务提供商的应用功能(AF )和内容 提供功能 ( CDF ) 都可以提供 IPTV业务。 第三方业务提供方向它的 RACF 功能实体请求网络资源, 归属网络的业务控制功能向他的资源控制功能请求 网络资源。 从图 10中可以看出, 两个网絡 SCF中 ISCF之间通过控制或者^ ί舌协 议 ( C/S Protocol ) 来完成两种网络的资源控制信息交互。 这样, 在 Non-NGN-BASED的 IPTV网络和 NGN第三方业务提供商互 连的情况下, 上述方法进一步包 4舌以下处理: 在 Non-NGN-BASED的 IPTV 网络的网络架构中, 通过其中的 SCF (记为第一 SCF ) 控制 RC ; 在 NGN-BASED的 IPTV网络的网络架构中, 通过其中的 SCF (记为第二 SCF ) 控制 RACF; 第一业务控制功能实体和第二业务控制功能实体的 IPTV业务 控制功能实体之间的通信通过 SCF的互联实现,第一 SCF和第二 SCF的 IPTV 业务控制功能实体(ISCF )之间通过控制或会话协议实现两种网络的资源控 制信息交互。 其中, 第三方提供商采用核心 IMS或者 IPTV业务控制功能要 取决于第三方网络的能力。 图 11示出了 NGN-BASED的 IPTV网络与 Non-NGN-BASED的 IPTV 网络网络互连时的点 业务( Content on demand, VoD ) 的漫游的实现流程。
如图 10所示, 可以包 以下处理 ( 1-11 ): The interconnection of the IPTV network and the IPTV network transport layer of NGN-BASED. Example 1 FIG. 8 shows a schematic diagram (roaming) of interconnection between an NGN-BASED IPTV network and a Non-NGN-BASED IPTV network (with SCF). As shown in Figure 8, when the two network interconnections require interworking resources and admission control information, in the IPTV network with Non-NGN-BASED with SCF, the resource control function (Resource Control, RC) is controlled by the SCF. In the NGN-BASED IPTV network, the SCF requests resources and the Resource & Admission Control Function (RACF), and the communication between the ISCFs in the two network SCFs is realized through the interconnection of the SCF, and The resource control information interaction of the two networks is completed by a control or a session protocol (C/S Protocol). Thus, in the case that the network architecture of the Non-NGN-BASED IPTV network includes the SCF, the above method further includes the following processing: In the network architecture of the Non-NGN-BASED IPTV network, the SCF (referred to as the first) SCF) Control RC; In the network architecture of the NGN-BASED IPTV network > Control the RACF through the SCF (referred to as the second SCF); pass between the IPTV Service Control Function Entity (ISCF) of the first SCF and the second SCF The control or session protocol implements resource control information interaction between the two networks. Example 2 Figure 9 shows an interconnection diagram (roaming) of an NGN-BASED IPTV network and a Non-NGN-BASED IPTV network (without SCF). As shown in Figure 9, the interconnection between the two networks is required. To exchange resource and admission control information, the resource-controlled interaction information is transmitted through the interaction between Non-NGN-BASED's RC and NGN-BASED's IPTV network's RACF (Resource and Admission Control Subsystem). In this way, in the case that the network architecture of the Non-NGN-BASED IPTV network does not include the SCF, the above method further includes the following processing: RC and NGN-BASED IPTV network in the network architecture of the IPTV network through the Non-NGN-BASED The RACF interaction of the network architecture implements resource control information interaction between the two networks. The interface between the resource control function and the RACF functional entity is used to request network resources of a party (such as a visited network). The RACF of the other party (such as the home network) requests the network resources of the other party (such as the visited network) from the resource control function of the other party (visiting the network). Example 3 FIG. 10 shows a schematic diagram of a Non-NGN-BASED IPTV network and an NGN third party service provider interconnection. Among them, the use of core IMS or IPTV service control functions by third-party providers depends on the capabilities of third-party networks. Both the application function (AF) and the content providing function (CDF) of the third-party service provider can provide the IPTV service. The third-party service provides a network resource to its RACF functional entity, and the service control function of the home network requests network resources from its resource control function. As can be seen from FIG. 10, the resource control information interaction between the two networks is performed by the ISCF between the two network SCFs through control or C/S Protocol. In this way, in the case where the Non-NGN-BASED IPTV network and the NGN third-party service provider are interconnected, the above method further includes the following processing: In the network architecture of the Non-NGN-BASED IPTV network, SCF (referred to as the first SCF) controls RC; in the network architecture of the NGN-BASED IPTV network, the RACF is controlled by the SCF (referred to as the second SCF); the first service control function entity and the second service control function entity The communication between the IPTV service control function entities is implemented by the interconnection of the SCF, and the IPTV service control function entity (ISCF) of the first SCF and the second SCF implement resource control information interaction between the two networks through a control or session protocol. Among them, the use of core IMS or IPTV service control functions by third-party providers depends on the capabilities of third-party networks. FIG. 11 shows an implementation process of roaming of a content on demand (VOD) when an NGN-BASED IPTV network is interconnected with a Non-NGN-BASED IPTV network. As shown in Figure 10, the following processing can be included (1-11):
( 1 ) IPTV终端通过接入网络 ( Access Network Function, ANF )、 鉴 权和 IP地址分配功能 ( Authentication& IP Allocation, AIA)获取 IP地址; (1) The IPTV terminal obtains an IP address through an Access Network Function (ANF), authentication, and IP Address Assignment (AIA);
( 2-3 ) 完成用户授权和鉴权后 , ANF为 IPTV终端分配 IP地址建立连 接 ( 2-3 ) After the user authorization and authentication are completed, ANF establishes an IP address for the IPTV terminal to establish a connection.
( 4 ) ANF获取从归属网络的 RACF获取用户策略规则, 通过拜访网络 的资源控制功能 (Resource control, RC ) 打开信令通道; (4) The ANF acquires the user policy rule from the RACF of the home network, and opens the signaling channel by accessing the resource control function (RC) of the network;
( 5 ) IPTV终端通过执行 SIP注册机制在归属网络中的 IMS上注册; (5) The IPTV terminal registers on the IMS in the home network by performing a SIP registration mechanism;
( 6 ) IPTV终端发送 SIP INVITE消息给 Core IMS来请求 IPTV应用会 话, Core IMS将这个消息发送到应用功能 (AF, Application Functions ); (6) The IPTV terminal sends a SIP INVITE message to the Core IMS to request an IPTV application session, and the Core IMS sends the message to the application function (AF, Application Functions);
( 7 )AF为 IPTV终端到内容传输功能( Content Delivery Function, CDF ) 信令请求资源分配; (7) The AF requests resource allocation for the IPTV terminal to the Content Delivery Function (CDF) signaling;
( 8 ) 内容传输功能 ( Content Delivery Function, CDF )为 IPTV终端到 Core IMS请求资源分配; Core IMS发送 IPTV 某体信息到归属 RACF , 归属 RACF 请求拜访网络中的 RC 为 IPTV 媒体流打开到接入网络 (Access Network, AN)的通道, 通过这个通道 4巴 Policy rules传送给 AN; (8) The Content Delivery Function (CDF) requests resource allocation from the IPTV terminal to the Core IMS; the Core IMS sends the IPTV body information to the home RACF, and the RC in the home RACF request visited network opens the access to the IPTV media stream. The access network (AN) channel is transmitted to the AN through this channel 4 bar Policy rules;
( 9 ) IPTV 终端请求 AF发送媒体流; (9) The IPTV terminal requests the AF to send the media stream;
( 10 ) AF请求内容传输功能 ( Content Delivery Function, CDF ) 开始 发送媒体流; ( 11 ) IPTV终端收到 IPTV从归属网络的 CDF发送来的媒体流, 媒体 流从归属网絡的 CDF通过 CTF和 BF (边界功能实体)传送到拜访网络的 IPTV终端。 综上,借助于本发明提供的技术方案,可以实现不同制式的 IPTV网络, 即 Non-NGN-Based IPTV 网络和 NGN-Based IPTV网络的互连, 保证网络平 滑稳定的过渡, 从而实现网络之间无缝操作。 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 4青神和
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。
(10) The AF request content delivery function (CDF) starts to send the media stream; (11) the IPTV terminal receives the media stream sent by the IPTV from the CDF of the home network, and the media stream passes the CTF and the BF from the CDF of the home network. (Boundary Functional Entity) is transmitted to the IPTV terminal of the visited network. In summary, by means of the technical solution provided by the present invention, an IPTV network of different standards, that is, an interconnection of a Non-NGN-Based IPTV network and an NGN-Based IPTV network, can be realized, thereby ensuring a smooth and stable transition of the network, thereby realizing network-to-network communication. Seamless operation. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Where in the invention 4 Qingshen and Within the principles, any modifications, equivalent substitutions, improvements, etc., are intended to be included within the scope of the present invention.
Claims
权 利 要 求 书 一种 IPTV网络互连架构, 用于不同制式的 IPTV网络的互连, 包括终端 用户功能实体、 应用功能实体、 内容传输功能实体、 网络功能实体或传 输功能实体, 其特征在于, 所述网络功能实体或所述传输功能实体进一 步包括边界功能实体, 所述边界功能实体连接至所述网络功能实体或所 述传输功能实体中的核心传输功能实体, 并且通过所述边界功能实体的 互连实现不同制式的 IPTV网络互连时的传输层互连。 根据权利要求 1 所述的 IPTV 网络互连架构, 其特征在于, 所述边界功 能实体用于实现以下功能至少之一: 数据传输连接、 路由选择、 网络地 址和端口的转换、 i体流中继和防火墙功能。 根据权利要求 2所述的 IPTV 网络互连架构, 其特征在于, 所述边界功 能实体通过执行边界网关协议来实现所述功能。 根据权利要求 1至 3中任一项所述的 IPTV网络互连架构, 其特征在于, 所述不同制式的 IPTV网络包括: 非基于下一代网络的 IPTV网络、 基于 下一代网络的 IPTV网络。 一种 IPTV网络互连方法,用于非基于下一代网络的 IPTV网络和基于下 一代网络的 IPTV网络的互连, 其特 4正在于, 包括以下处理: The present invention provides an IPTV network interconnection architecture for interconnecting IPTV networks of different standards, including an end user function entity, an application function entity, a content transmission function entity, a network function entity or a transmission function entity, wherein The network function entity or the transport function entity further includes a boundary function entity connected to the network function entity or a core transport function entity in the transport function entity, and through the mutual boundary function entities The transport layer interconnection when interconnecting IPTV networks of different standards is implemented. The IPTV network interconnection architecture according to claim 1, wherein the boundary function entity is configured to implement at least one of the following functions: data transmission connection, routing, network address and port conversion, and i body stream relay. And firewall features. The IPTV network interconnection architecture according to claim 2, wherein said boundary function entity implements said function by executing a border gateway protocol. The IPTV network interconnection architecture according to any one of claims 1 to 3, wherein the IPTV network of different standards comprises: an IPTV network not based on a next generation network, and an IPTV network based on a next generation network. An IPTV network interconnection method for interconnecting an IPTV network that is not based on a next generation network and an IPTV network based on a next generation network, which is in the following, including the following processing:
在非基于下一代网络的 IPTV网络的网络架构的网络功能实体中设 置第一边界功能实体, 并在基于下一代网络的 IPTV 网络的网络架构的 传输功能实体中设置第二边界功能实体, 其中, 所述第一边界功能实体 和所述第二边界功能实体用于实现以下功能至少之一: 数据传输连接、 路由选择、 网络地址和端口的转换、 媒体流中继和防火墙功能; Setting a first boundary function entity in a network function entity of a network architecture of the IPTV network that is not based on the next generation network, and setting a second boundary function entity in a transmission function entity of the network architecture of the IPTV network based on the next generation network, where The first boundary function entity and the second border function entity are configured to implement at least one of the following functions: data transmission connection, routing, network address and port conversion, media stream relay, and firewall function;
将所述第一边界功能实体和所述第二边界功能实体互连, 以实现所 述非基于下一代网络的 IPTV网络和所述基于下一代网络的 IPTV网络传 输层的互连。 根据权利要求 5所述的 IPTV 网络互连方法, 其特征在于, 在所述非基 于下一代网络的 IPTV网络的网络架构包括业务控制功能实体的情况下, 进一步包括以下处理:
在所述非基于下一代网络的 IPTV网络的网络架构中, 通过第一业 务控制功能实体控制资源控制功能实体, 通过所述第一业务控制功能实 体请求资源和进行准入控制; The first boundary function entity and the second border function entity are interconnected to implement interconnection of the non-Next Generation Network-based IPTV network and the Next Generation Network-based IPTV network transport layer. The IPTV network interconnection method according to claim 5, wherein, in a case where the network architecture of the non-based network-based IPTV network includes a service control function entity, the method further includes the following processing: In the network architecture of the IPTV network that is not based on the next generation network, the resource control function entity is controlled by the first service control function entity, and the resource and the admission control are requested by the first service control function entity;
在所述基于下一代网络的 IPTV网络的网络架构中, 通过第二业务 控制功能实体控制资源和准入控制功能实体; In the network architecture of the IPTV network based on the next generation network, the resource and the admission control function entity are controlled by the second service control function entity;
所述第一业务控制功能实体和所述第二业务控制功能实体的 IPTV 业务控制功能实体之间的通信通过 SCF的互联实现, 并通过控制或会话 协议实现两种网络的资源控制信息交互。 根据权利要求 5所述的 IPTV 网络互连方法, 其特征在于, 在所述非基 于下一代网络的 IPTV 网络的网络架构不包括业务控制功能实体的情况 下, 进一步包^ "以下处理: The communication between the first service control function entity and the IPTV service control function entity of the second service control function entity is implemented by using an SCF interconnection, and resource control information interaction between the two networks is implemented through a control or session protocol. The IPTV network interconnection method according to claim 5, wherein, in a case where the network architecture of the non-next network-based IPTV network does not include a service control function entity, further processing is as follows:
通过所述非基于下一代网络的 IPTV网络的网络架构中的资源控制 功能实体和所述基于下一代网絡的 IPTV 网络的网絡架构的资源和准入 控制功能实体的交互实现两种网络的资源控制信息交互。 根据权利要求 7所述的 IPTV 网络互连方法, 其特征在于, 所述资源控 制功能实体和所述资源和准入控制功能实体间的接口用于请求归属网络 或拜访网络的网络资源; 归属网络或拜访网络的资源和准入控制功能实 体或资源控制功能实体分别用于向对方网络的资源控制功能实体或资源 和准入控制功能实体请求网络资源。 根据权利要求 5述的 IPTV 网络互连方法, 其特征在于, 在所述非基于 下一代网络的 IPTV网络和下一代网络第三方业务^:供商互连的情况下, 进一步包 4舌以下处理: Realizing resource control of two networks by interaction between a resource control function entity in a network architecture of the non-initial network-based IPTV network and a network architecture resource of the next-generation network-based IPTV network and an admission control function entity Information exchange. The IPTV network interconnection method according to claim 7, wherein the resource control function entity and the interface between the resource and the admission control function entity are used to request a network resource of a home network or a visited network; Or the resource and admission control function entity or the resource control function entity of the visited network are respectively used to request network resources from the resource control function entity or the resource and admission control function entity of the counterpart network. The IPTV network interconnection method according to claim 5, wherein in the case that the non-next network-based IPTV network and the next-generation network third-party service are connected to each other, further processing is performed :
在所述非基于下一代网络的 IPTV网络的网络架构中, 通过第一业 务控制功能实体控制资源控制功能实体; In the network architecture of the non-next network-based IPTV network, the resource control function entity is controlled by the first service control function entity;
在所述基于下一代网络的 IPTV网络的网络架构中, 通过第二业务 控制功能实体控制资源和准入控制功能实体; In the network architecture of the IPTV network based on the next generation network, the resource and the admission control function entity are controlled by the second service control function entity;
所述第一业务控制功能实体和所述第二业务控制功能实体的 IPTV 业务控制功能实体之间通过控制或会话协议实现两种网络的资源控制信 息交互。
The IPTV service control function entity of the first service control function entity and the second service control function entity implements resource control information interaction between the two networks by using a control or session protocol.
10. 根据权利要求 9所述的 IPTV网络互连方法, 其特征在于, 所述第三方 业务提供商的应用功能实体和内容提供功能实体均能够提供 IPTV业务; 所述第三方业务提供商向其资源和准入控制功能实体请求网络资源, 归 属网络的业务控制功能实体向其资源控制功能实体请求网络资源。
The IPTV network interconnection method according to claim 9, wherein the application function entity and the content providing function entity of the third-party service provider are both capable of providing an IPTV service; The resource and admission control function entity requests network resources, and the service control function entity of the home network requests network resources from its resource control function entity.
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CN1310540A (en) * | 2001-03-16 | 2001-08-29 | 巨龙信息技术有限责任公司 | Network intercommunication implementing server |
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