WO2006076861A1 - Procede pour traiter un service de multidiffusion et systeme correspondant - Google Patents

Procede pour traiter un service de multidiffusion et systeme correspondant Download PDF

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Publication number
WO2006076861A1
WO2006076861A1 PCT/CN2006/000084 CN2006000084W WO2006076861A1 WO 2006076861 A1 WO2006076861 A1 WO 2006076861A1 CN 2006000084 W CN2006000084 W CN 2006000084W WO 2006076861 A1 WO2006076861 A1 WO 2006076861A1
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WO
WIPO (PCT)
Prior art keywords
user
program
template
module
multicast
Prior art date
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PCT/CN2006/000084
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English (en)
French (fr)
Inventor
Xiaofeng Huang
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 EP06705505.3A priority Critical patent/EP1843519B1/en
Publication of WO2006076861A1 publication Critical patent/WO2006076861A1/zh
Priority to US11/826,904 priority patent/US7841012B2/en
Priority to HK07113990.6A priority patent/HK1109262A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/16Arrangements for providing special services to substations
    • H04L12/18Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • 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
    • H04L63/102Entity profiles

Definitions

  • the present invention relates to a multicast technology, and more particularly to an Internet-based multicast service processing method and system. Background of the invention
  • the method for transmitting multicast services in the prior art adopts a package mode, that is, the terminal users in the local area are divided into user groups with different viewing requirements, and different templates are provided to different user groups to enable the users to obtain services within the scope of authority.
  • the so-called template is the viewing permission of a series of programs. For example, suppose the local system has three channels, namely channels Cl, C2 and C3, and there are six users in the area, namely users U1 ⁇ U6. After the customer needs analysis, three templates are set separately.
  • the templates P1, P2, and P3 configure the viewing rights of the channels in each template, wherein the template P1 has the viewing authority of the channel C1, the template P2 has the viewing rights of the channel C1 and the channel C2, and the template P3 has the channels C1, C2, and C3. View permissions.
  • the user needs to be bound to one of the templates, for example, the user U1 is bound to the template P1, then the user authority of the user U1 can only watch the program of the channel C1; If the user U1 is bound to the template P3, the user rights of the user U1 can watch the programs of the channels C1, C2 and C3.
  • the work of the multicast service processing system in the multicast service processing mainly includes two aspects: one is the establishment of a template and the binding of a template; the second is the identification of user program rights.
  • the establishment of the template is to add the permission of the related program table in the template table;
  • the binding of the template refers to adding a related template in the user table, so that the user table, the template table and the program table are established in three relationships;
  • the identification of the program permission is based on the source port and the multicast address carried in the Internet Multicast Management Protocol (IGMP) message from the user, and the relationship between the user table, the template table, and the program table is determined by querying the association relationship between the user table, the template table, and the program table. Whether the user of the port and the multicast address has the viewing right of a certain program, and forwards the corresponding program stream to the authorized user, and vice versa.
  • IGMP Internet Multicast Management Protocol
  • the permission configuration is not flexible. Since user permissions are configured in the template mode, users can only bind to one of the templates, or do not bind to any template without any permission.
  • the new template must be generated. Satisfy. In actual use, the source of the program is very rich. It is usually impossible to exhaust all the combinations of the program sources with different templates, which limits the flexibility of user rights configuration;
  • the privileged user implementation has a large limitation.
  • a privileged user refers to a user who does not need user program permission authentication.
  • the prior art template mode configuration is usually to generate a template containing program rights of all channels, and then bind the template to the privileged user; this method achieves the use of privileged users to a certain extent.
  • its essence is to treat privileged users as super ordinary users, which is manifested in several aspects: First, when the program source increases, the templates of all privileged users must be modified, and the privileged users cannot be implemented. The zero configuration and immediate effect; both, because on the system side, the privileged user and the ordinary user cannot be distinguished, so that the code stream classification and priority processing of the privileged user cannot be realized; Permissions, and the modification of the template affects all bound users.
  • the main purpose of the present invention is to provide a multicast service processing method, which can enhance the flexibility of multicast service processing and realize personalized service of users.
  • Another object of the present invention is to provide a multicast service processing system, which can enhance the flexibility of multicast service processing and realize personalized user services.
  • a multicast service processing method adding a program table permission in a template table, adding a user-bound default template and/or a package template to the user table, the method comprising the following steps:
  • the multicast service processing system receives the The user requests the program request, queries the default template or the package template, and determines whether the program currently requested by the user has the right. If yes, the multicast service processing system forwards the program that the current user clicks on; otherwise, the current user on-demand is not forwarded. Program.
  • the method for determining whether the program currently requested by the user has permission is:
  • the multicast service processing system queries the default template, and determines whether the program currently broadcast by the user has rights, if yes, proceeds to step C; if not, proceeds to step B;
  • step B Query the package template, and determine whether the program currently broadcast by the user has rights Limit, if yes, proceed to step C; otherwise, proceed to step D;
  • the multicast service processing system forwards the program currently requested by the user, and ends the process
  • the multicast service processing system does not forward the programs that the current user clicks on.
  • the method for determining whether the program currently requested by the user has permission is:
  • the multicast service processing system queries the package template, and determines whether the program currently broadcast by the user has rights, if yes, proceeds to step C; if not, proceeds to step B;
  • step B Query the default template, and determine whether the program currently requested by the user has rights, if yes, proceed to step C; otherwise, proceed to step D;
  • the multicast service processing system forwards the current user-on-demand program, and ends the process
  • the multicast service processing system does not forward the programs that the current user clicks on.
  • the method further includes: the multicast service processing system querying the user table and determining whether the current user is a privileged user, and if yes, proceeding to step C; otherwise, continuing Perform step A.
  • the user on-demand program request carries: a user data structure, a template data structure, and a program data structure;
  • the user data structure includes: a user identifier for uniquely identifying a user in the system, a privilege flag for indicating whether the user is a privileged user, a personality template bit table for saving a personalized right of the user to the program; Saving a binding template bit table of the corresponding package template bound to the user;
  • the template data structure includes: a template index for uniquely identifying a template of the system, a template name, and a program bit table for saving a program having the permission of the template;
  • the program data structure includes: a program index for uniquely identifying a program in the system, a program name, a program IP address for storing a multicast address of the program.
  • the method for determining whether the current user is a privileged user is: Determining whether the privilege flag in the user data structure indicates that the current user is a privileged user, and if yes, the current user is a privileged user; otherwise, the current user is not a privileged user.
  • the method for determining whether the current user's requested party has the permission of the program list in the default template is:
  • the method for determining whether the program currently requested by the user has the permission of the program list in the package template is:
  • the multicast service processing system superimposes the rights in each template by multiple comparisons to obtain the final permission of the user for the program, and judges according to the final authority. Whether the user has the right to broadcast a program.
  • the method for forwarding a program that is currently requested by a user is:
  • the multicast service processing system invokes the program data structure by using the program bit table and the personality template bit table, and the user data structure is invoked by using the binding template bit table; and the current user on demand is obtained according to the multicast address.
  • the program is sent to the current user.
  • the method before the forwarding of the current user-on-demand program, the method further includes: the multicast service processing system requests the backbone network router to forward the program that the user clicks on.
  • the user-on-demand program request is an Internet multicast management protocol IGMP report message.
  • a multicast service processing system comprising:
  • the multicast forwarding module receives the user-on-demand program request from the user to obtain the user-on-demand information and transmits the information to the controlled multicast module; receives the program stream from the controlled multicast module, and forwards the program stream to Receiving, by the user, the received user-on-demand program request to the multicast protocol processing module when receiving the notification from the controlled multicast module to forward the user's on-demand program request;
  • a controlled multicast module configured to receive user-on-demand information from the multicast forwarding module, traverse in a user template module to obtain a user's authority for the on-demand program; and send the program stream stored in the program library module to The multicast forwarding module, or notifying the multicast forwarding module to forward the user-on-demand program request to the multicast protocol processing module;
  • a multicast protocol processing module configured to convert information of interaction between the multicast service processing system and the backbone router
  • a user template module configured to store a user-bound template
  • the program library module is used to store the program stream.
  • the system also includes:
  • a user interface module configured to manage user information of the multicast service processing system, receive user-on-demand information from the controlled multicast module, and convert the internal information that can be recognized by the multicast service processing system to the controlled multicast module;
  • the controlled multicast module further includes: sending the received user-on-demand information to the user interface module; and receiving internal information from the user interface module.
  • the user template module includes: a default template for configuring a program permission for a user and/or a package template for one or more pre-programmed program combinations and rights.
  • the default template records user personalized configuration information; the user selects one or more of the package services.
  • the user on-demand information includes: a program and a user port identifier broadcast by the user.
  • the multicast service processing system is an independent entity or is set in a digital subscriber line concentrator
  • a multicast service processing system comprising: a controlled multicast module, a multicast forwarding module, a multicast protocol processing module, a user template module, and a user interface module;
  • the controlled multicast module is configured to receive user-on-demand information from the user interface module, and traverse in the user template module to obtain the user's right to the on-demand program;
  • the multicast forwarding module forwards the program stream to the user port module;
  • the protocol of the multicast protocol processing module is used to convert the information exchanged between the multicast service processing system and the backbone network router;
  • the user template module stores a default template bound to each user to configure the program permission for the user separately. Or / and pre-made program combinations and permissions of the package template.
  • the multicast service processing system After receiving the user-on-demand program and the user port identifier, the multicast service processing system performs the following steps: transmitting the user-on-demand program and the user port identifier to the controlled multicast module; traversing the controlled multicast module a template in the user template module that has all the user port identifiers bound to the user, and obtains the current user's right to the user's on-demand program; if the user does not have the right to view, no program stream is forwarded; If the program has the rights of the program and the program stream has been forwarded to the multicast service processing system, the program stream is directly forwarded by the multicast forwarding module to the user port; if the user has the right to the program and the program stream has not been delivered to the multicast service
  • the processing system sends an IGMP report message to the upper-layer router through the multicast protocol processing module, and requests the program to be forwarded by the user.
  • the multicast service processing method and system provided by the present invention provide a flexible solution for the rights configuration of the multicast user by combining the privilege mode and the personalized mode, and also provide the multicast service operator with more efficient and flexible rights.
  • the transmission mode enhances the flexibility of the multicast service processing and implements the personalized service of the user.
  • the invention also supports a user binding multiple templates, and provides a richer permission transmission mode for the multicast user's permission configuration. .
  • the present invention also proposes a privileged user handling mode that provides privileged users with truly efficient and convenient privilege processing without being affected by increased traffic. BRIEF DESCRIPTION OF THE DRAWINGS
  • 1 is a schematic structural diagram of a composition of a multicast service processing system according to the present invention
  • 2 is a flow chart of the multicast service processing of the present invention
  • FIG. 3 is a schematic diagram of another component structure of the multicast service processing system of the present invention. Mode for carrying out the invention
  • the multicast service processing system of the present invention includes a user interface module 101, a controlled multicast module 102, a multicast forwarding module 103, and multicast protocol processing.
  • the multicast service processing system of the present invention may be an independent entity or a digital subscriber line concentrator (DSLAM).
  • DSLAM digital subscriber line concentrator
  • the user interface module 101 is configured to manage user information of the multicast service processing system, receive user-on-demand information from the controlled multicast module 102 during the on-demand process, and convert the received user-on-demand information into a multicast service processing system. Internally identifiable internal information is sent to the controlled multicast module 102;
  • the controlled multicast module 102 is configured to receive the user-on-demand information from the multicast forwarding module 103 and send it to the user interface module 101, receive internal information from the user interface module 101, and traverse the user in the user template module 105 according to the internal information.
  • the already bound template is obtained to obtain the user's authority for the program to be broadcasted; if the controlled multicast module 102 has received the program stream transmitted through the backbone router, the program stream stored in the program library module 100 is stored.
  • the multicast forwarding module 103 receives the IGMP report message from the user, and parses the IGMP report message to obtain user-on-demand information, such as a program broadcasted by the user and a user port identifier. And transmitting to the controlled multicast module 102; receiving the program stream from the controlled multicast module 102, and forwarding it to the user, or receiving a notification from the controlled multicast module 102 to forward the IGMP report message, The received IGMP report message is forwarded to the multicast protocol processing module 104; the multicast protocol processing module 104 is configured to convert the information exchanged between the multicast service processing system and the backbone network router;
  • the user template module 105 is configured to store a user-bound default template and a package template.
  • the user template module 105 stores a default template and/or one or more modules for each user to configure program permissions for the user. Pre-made package combination and permission package template.
  • the default template records user personalized configuration information, and each user can arbitrarily change the default template belonging to the user.
  • the package template is a packaged combination service provided by the operator. The operator can provide a plurality of packages, and any one of the users can select one or more of the package services. In this case, the user is not only bound with the default template in the user template module 105, but also meets the individual needs that the package service cannot satisfy. There are also multiple package templates bundled.
  • the program library module 100 is configured to store a program stream, and the program stream is converted by a protocol of the multicast protocol processing module 104 through a backbone network router, and becomes a program stream conforming to the multicast service processing system protocol, and is in the controlled multicast module 102. It is stored in the program library module 100 under control.
  • the multicast service processing system includes a user interface module 101, a controlled multicast module 102, a multicast forwarding module 103, and multicast protocol processing.
  • the module 104 and the user template module 105 wherein the user template module 105 stores a default template for each user binding to configure a program permission for the user or/and a package template of one or more pre-programmed program combinations and rights. .
  • the default template records user personalized configuration information. Each user can arbitrarily change the default template that belongs to the user.
  • the package template is a packaged combination service provided by the operator.
  • the operator can provide a plurality of packages, and any one of the users can select one or more of the package services.
  • the user is not only bound with the default template in the user template module 105 to satisfy the package.
  • the personality needs are also bound to multiple package templates.
  • the following steps are performed: transmitting the user-on-demand program and the user port identifier to the controlled multicast module 102;
  • the multicast module 102 traverses the template that the user with the user port identifier in the user template module 105 has been bound to, and obtains the permission of the current user for the user to order the program; if the user does not have the right to view, the multicast module 102 does not forward the template.
  • any program stream if the user has the right to the program and the program stream has been forwarded to the multicast service processing system, the program stream is directly forwarded by the multicast forwarding module 103 to the user port; if the user has the rights of the program and the program stream After being sent to the multicast service processing system, the multicast protocol processing module 104 sends an IGMP report message to the upper-layer router, requesting to forward the program that the user clicks on.
  • FIG. 2 is a flowchart of the multicast service processing of the present invention.
  • various templates that is, the permission of adding related program tables in the template table, and the binding of the template is already in the user table.
  • the related template is added and the user binding is set at the same time, that is, the default template and/or the pre-programmed program combination and the permission template template for the user to separately configure the program permission for the user, and the multicast service processing method of the present invention Includes the following steps:
  • Step 200 to step 201 After receiving the request for the user's on-demand program from the user, the multicast service processing system queries the user table, and determines whether the current user is a privileged user according to the user data structure of the user requested by the on-demand program, and if yes, proceeds to step 204; Otherwise, go to step 202.
  • the data structure carried by the user on-demand program request in the present invention mainly has three data structures: a user data structure, a template data structure and a program data structure, and the specific description is as follows:
  • the user data structure includes four fields: user ID, privilege tag, personality template bit table, and binding template bit table.
  • the user identifier is used to uniquely identify the user in the system;
  • the privilege flag is used to indicate whether the user is a privileged user;
  • the personality template bit table is used to save the user's personalized permission for the program, that is, the default template; For saving the corresponding binding to the user Package template.
  • the template data structure includes three fields: a template index, a template name, and a program bit table.
  • the template index is used to uniquely identify a template of the system; the template name is a meaningful name for the template name; and the program bit table is used to save the section g to which the template has permission.
  • the program data structure includes three fields of a program index, a program name, and a program IP address.
  • the program index is used to uniquely identify a program in the system; the program name is a meaningful name for the program naming; and the program IP address is used to store the multicast IP address corresponding to the program.
  • the program data structure is called by the template data structure and the user data structure through the program bit table and the personality template bit table respectively; the user data structure invokes the template data structure by binding the template bit table.
  • the current user is a privileged user. If the user is a non-privileged user or has no tag, the current user is not a privileged user.
  • Step 202 Query the personalized template of the current user, that is, the default template, by using the personality template bit table in the user data structure of the current user. If the program table in the personalized template indicates that the current user has the right to the program that is requested, enter Step 204; Otherwise, proceed to step 203.
  • the personalized method is to play the authorized program for the user according to the default template for the user to configure the program permission separately.
  • Step 203 Query the binding template bit table in the user data structure of the current user. If the permission of the user to broadcast the program is found in the binding template bit table, proceed to step 204; otherwise, proceed to step 205.
  • the method of the present invention may also first determine whether the program requested by the user has the permission of the program list in the package template. If yes, the multicast service processing system forwards the program that the current user clicks on; otherwise, further determines the program that the user orders on-demand. Whether there is permission of the program table in the default template, if yes, the multicast service processing system forwards the program that the current user clicks on; if not, the multicast service processing system does not forward the program that the current user orders.
  • Step 204 The multicast service processing system forwards the program that the current user clicks on, and ends the process.
  • the step further includes: before the forwarding of the program stream, the multicast service processing system requests the backbone network router to forward the user-on-demand program.
  • Step 205 The multicast service processing system does not forward the program that the current user clicks on.
  • the multicast forwarding module 103 obtains the program and the user port identifier broadcasted by the user from the IGMP report message from the user, and sends the program to the controlled multicast module 102.
  • the controlled multicast module 102 traverses the template that the user has bound in the user interface module 101 and the user template module 105.
  • the user may bind a template, or may bind multiple templates at the same time, and obtain the template from the user template module 105.
  • the type of permission of the program obtains the final permission of the user for the program through multiple comparisons.
  • the user may bind multiple templates, and multiple times are required to complete the reading.
  • each template may have different rights to the same program, such as previewing, viewing all programs, viewing part of the program, etc.
  • the final permission of the user for the program needs to be superimposed on the permissions in each template.
  • the program stream is not forwarded to the user; if the user finally has the right to the program If the program stream has been forwarded to the multicast service processing system, the program stream is forwarded directly to the user by the multicast forwarding module 103.
  • the controlled multicast module 102 Under control, the multicast forwarding module 103 forwards the IGMP report message to the backbone router through the multicast protocol processing template 104, and requests to forward the program that the user orders.
  • the template P1 has the rights of the program C1 and the program C2, and the permission of the program C1 is to watch all the programs, the permission of the program C2 is the preview; the template P2 has the authority of the program C1, and the permission of the program C1 is the preview.
  • the privilege level of the preview is lower than the privilege level for viewing all the programs, and the system sets the superimposed privilege to the final privilege.
  • the system queries the template P1 and the template P2 bound by the user, and obtains two rights of the user to the program C1: View all programs and previews, at this time, according to the system setting, the superposition is low.
  • the level of permissions is the final privilege, so the user's final privilege on program C1 is a preview.
  • the multicast forwarding module 103 obtains the program and user port identifier of the user's point of interest from the IGMP report message from the user, and transmits the program to the controlled multicast module 102.
  • the controlled multicast module 102 traverses the program list that the user has bound in the user interface module 101 and the user template module 105, from which the permission type of the program is obtained. If the user does not have the right to view, the program stream is not forwarded to the user; if the user has the right to the program and the program stream has been forwarded to the multicast service processing system, the multicast forwarding module 103 directly forwards the program stream to the user port; The program stream has not been delivered to the multicast service processing system. Under the control of the controlled multicast module 102, the multicast forwarding module 103 forwards the IGMP report message to the backbone router through the multicast protocol processing module 104. Forward the program that the user clicks on.
  • the difference between the controlled process of the personalized method and the package method is that the program permission is obtained.
  • the process is different.
  • the present invention realizes the package and personalized setting of simultaneously implementing the multicast service in the same multicast service processing system by the following two aspects:
  • the binding of multiple templates is used, that is, one user can have any number of users.
  • Template binding and one of the templates is a default template that is bound to the default settings of the user.
  • the default template is used for user personalization, which enhances the flexibility of service configuration. Still using the foregoing example, if a user wants to watch only the programs of channel C1 and channel C3, on the basis of only three templates, the template P1 has the viewing authority of the channel C1, the template P2 has the channel C1 and the channel.
  • the viewing permission of the C2, the template P3 has the viewing rights of the channels C1, C2, and C3.
  • the user when binding the template to the user, the user can be bound to the template P1 first, and then given on the default binding template. Viewing the rights of the program of channel C3, the default template is invisible to the user, and appears as a setting for the personalized attribute;
  • the controlled process of the user's on-demand program is the same as the traditional process, and there is no complication, but the template user is not visible. Only. Therefore, in the user-on-demand controlled process, in order to check the user's permission type for a certain program, it is still traversing all the templates bound by the user, and finding the highest program permission from it, as the basis for the program stream broadcast.
  • the multicast service processing system can perform special processing for the privileged user. , including flow control, priority, etc. Specifically, for the privileged user, since the special identifier is set in the user port identifier, the multicast service processing system receives the user port identifier carrying the user-on-demand program and including the special tag.
  • the multicast forwarding module 103 directly forwards the program stream to the user. Otherwise, the template 104 is processed by the multicast protocol.
  • the upper-layer router forwards the IGMP report message and requests the program to be forwarded by the user.

Description

组播业务处理方法和系统
技术领域
本发明涉及组播技术, 尤指一种基于互联网的组播业务处理方法和 系统。 发明背景
随着宽带业务的发展和用户需求的多样化, 用户已不再满足于基本 的网页浏览和文件下载等传统互联网业务, 而对视频点播、 远程教育、 股票信息和视频会议等的需求迅速增长。 随着组播业务尤其是视频业务 的扩展, 除了对设备提出了支持组播的功能和性能要求外, 为与传统广 播电视网络展开竟争, 互联网中对组播业务的快速、 安全和灵活的营运 提出了更高要求。
组播业务处理的关键技术之一是业务权限的发送方式, 也就是运营 商如何给终端用户授予观看视频节目或提供其它业务的权限, 业务权限 的发送方式直接决定了组播业务的灵活性和提供形式。 现有技术的组播 业务发送方法采用套餐方式, 即将本地区的终端用户划分为不同观看需 求的用户群, 向不同的用户群提供不同的模板以使用户获得权限范围内 的业务。 所谓模板, 就是一系列节目的观看权限, 比如, 假设本地系统 有三个频道即频道 Cl、 C2和 C3 , 而该地区有六个用户即用户 Ul ~ U6; 经过客户需求分析, 分别设置三种模板即模板 Pl、 P2和 P3并配置各模板 中频道的观看权限, 其中, 模板 P1具有频道 C1的观看权限、 模板 P2具有 频道 C1和频道 C2的观看权限、模板 P3具有频道 Cl、 C2和 C3的观看权限。 为了实现用户观看节目, 需要将用户与其中一个模板绑定, 比如将用户 U1绑定模板 P1 , 那么用户 U1的用户权限就只能观看频道 C1的节目; 再 如将用户 Ul绑定模板 P3 , 那么用户 Ul的用户权限就可以观看频道 C1、 C2和 C3的节目。
目前, 组播业务处理中组播业务处理系统的工作主要包括两个方 面: 一是模板的建立和模板的绑定; 二是用户节目权限的鉴定。 其中, 模板的建立就是在模板表中添加相关节目表的权限; 模板的绑定是指在 用户表中添加相关模板, 这样用户表、 模板表和节目表三个表就建立了 关联关系; 用户节目权限的鉴定是根据来自用户的 Internet组播管理协议 ( IGMP )报文中携带的源端口和组播地址, 通过查询用户表、 模板表 和节目表三个表的关联关系来判断属于该源端口和组播地址的用户是 否具有某个节目的观看权限, 并对有权限的用户转发对应的节目流, 反 之则不转发。
上述现有技术组播业务处理存在以下缺点:
一方面, 权限配置不灵活。 由于是采用模板方式配置用户权限, 用 户只能与其中一种模板绑定, 或者不与任何模板绑定即没有任何权限。 在上述实例中, 如果希望某个用户只能观看频道 C1和频道 C3的节目,原 有的三种模板都无法满足这个用户权限的要求, 按照现有技术的处理, 必须通过生成新的模板来满足。而在实际使用中,节目源是非常丰富的, 如果要想用不同的模板穷举各节目源的所有组合方式通常是不可能的, 这就局限了用户权限配置的灵活性;
另一方面, 特权用户实现方式存在较大局限性, 特权用户是指无需 用户节目权限鉴定的用户。 为实现特权用户的观看, 现有技术的模板方 式配置通常是生成一个包含全部频道的节目权限的模板, 然后将该模板 与特权用户绑定; 这种方法在一定程度上实现了特权用户的使用, 但其 实质是将特权用户当作超级普通用户处理了, 表现在几个方面: 一者, 当节目源增加时, 所有特权用户的模板都要修改, 无法实现对特权用户 的零配置和即时生效; 二者, 由于在系统端, 无法区分特权用户和普通 用户, 从而无法实现对特权用户的码流分类和优先级的处理; 三者, 无 法单独修改某个用户的节目权限, 而模板的修改会影响所有绑定用户。
综上, 在现有技术中, 由于是通过模板与用户的绑定为用户配置用 户权限, 所以无法为单个用户添加或删除节目权限, 大大限制了组播业 务处理的灵活性; 对某用户绑定的模板的修改必然会影响到所有绑定该 模板的用户的权限, 影响了用户的个性化服务。 发明内容
有鉴于此, 本发明的主要目的在于提供一种组播业务处理方法, 能 够增强组播业务处理的灵活性, 实现用户的个性化服务。
本发明另一目的在于提供一种组播业务处理系统, 能够增强组播业 务处理的灵活性, 实现用户的个性化^ I良务。
为达到上述目的, 本发明的技术方案具体是这样实现的:
一种组播业务处理方法, 在模板表中添加节目表的权限, 在用户表 中添加用户绑定的缺省模板和 /或套餐模板, 该方法包括以下步骤: 组播业务处理系统根据接收到的用户点播节目请求, 查询所述缺省 模板或套餐模板, 判断当前用户所点播的节目是否具有权限, 若具有, 则组播业务处理系统转发当前用户点播的节目; 否则, 不转发当前用户 点播的节目。
所述判断当前用户所点播的节目是否具有权限的方法为:
A. 所述组播业务处理系统查询所述缺省模板, 并判断当前用户所 点播的节目是否具有权限, 若具有, 则进入步骤 C; 若不具有, 则进入 步骤 B;
B. 查询所述套餐模板, 并判断当前用户所点播的节目是否具有权 限, 若具有, 则进入步骤 C; 否则, 进入步骤 D;
C. 组播业务处理系统转发当前用户点播的节目 , 结束本流程;
D. 组播业务处理系统不转发当前用户点播的节目。
所述判断当前用户所点播的节目是否具有权限的方法为:
A. 所述组播业务处理系统查询所述套餐模板, 并判断当前用户所 点播的节目是否具有权限, 若具有, 则进入步骤 C; 若不具有, 则进入 步驟 B;
B. 查询所述缺省模板, 并判断当前用户所点播的节目是否具有权 限, 若具有, 则进入步骤 C; 否则, 进入步骤 D;
C. 组播业务处理系统转发当前用户点播的节目, 结束本流程;
D. 组播业务处理系统不转发当前用户点播的节目。
步骤 A中, 所述组播业务处理系统查询之前, 该方法还包括: 所述组播业务处理系统查询所述用户表并判断当前用户是否为特权 用户, 若是, 则进入步骤 C; 否则, 继续执行步骤 A。
, 所述用户点播节目请求中携带有: 用户数据结构、 模板数据结构和 节目数据结构;
所述用户数据结构包括: 用于唯一标识系统中的用户的用户标识、 用于表明该用户是否是特权用户的特权标记、 用于保存用户对节目的个 性化权限的个性模板位表; 用于保存与该用户绑定的对应的套餐模板的 绑定模板位表;
所述模板数据结构包括:用于唯一标识系统的一个模板的模板索引、 模板名称、 用于保存该模板有权限的节目的节目位表;
所述节目数据结构包括: 用于唯一标识系统中的一个节目的节目索 引、 节目名称、 用于存储该节目的組播地址的节目 IP地址。
所述判断当前用户是否为特权用户的方法为: 判断所述用户数据结构中的特权标记是否表明当前用户是特权用 户, 若表明是, 则当前用户为特权用户; 否则, 当前用户不为特权用户。
所述判断当前用户所点播的节司是否具有所述缺省模板中节目表的 权限的方法为:
通过当前用户的所述用户数据结构中的个性模板位表, 查询当前用 户的所述缺省模板, 若缺省模板中的节目表指示当前用户所点播的节目 具有节目权限, 则具有所述缺省模板中节目表的权限; 否则, 不具有。
所述判断当前用户所点播的节目是否具有所述套餐模板中节目表的 权限的方法为:
查询当前用户的所述用户数据结构中的绑定模板位表, 若在该绑定 模板位表中查出该用户有点播节目的权限, 则具有所述套餐模板中节目 表的权限; 否则, 不具有。
若所述用户绑定的套餐模块为一个以上, 则所述组播业务处理系统 通过多次比较, 将各模板中的权限进行叠加后获得用户对该节目的最终 权限, 并按照该最终权限判断该用户是否具有有点播节目的权限。
所述转发当前用户点播的节目的方法为:
所述组播业务处理系统通过所述节目位表和个性模板位表调用所述 节目数据结构, 通过所述绑定模板位表调用所述用户数据结构; 根据所 述组播地址获得当前用户点播的节目并发送给当前用户。
在步骤 C中, 所述转发当前用户点播的节目之前, 该方法还包括: 所述组播业务处理系统向骨干网路由器要求转发用户点播的节目。
所述用户点播节目请求为 Internet组播管理协议 IGMP报告报文。 一种组播业务处理系统, 该系统包括:
组播转发模块, 接收来自用户的用户点播节目请求以获得用户点播 信息并传给受控组播模块; 接收来自受控组播模块的节目流, 并转发给 用户, 或者在接收到来自受控组播模块的通知转发用户点播节目请求的 通知时, 将接收到的用户点播节目请求转发给组播协议处理模块;
受控组播模块, 用于接收来自组播转发模块的用户点播信息, 在用 户模板模块中遍历以获得用户对该所点播节目的权限; 将所述存储在节 目库模块中的节目流发送给组播转发模块, 或者通知组播转发模块将用 户点播节目请求转发给组播协议处理模块;
组播协议处理模块, 用于转换组播业务处理系统与骨干网路由器之 间交互的信息的协议;
用户模板模块, 用于存储用户绑定的模板;
节目库模块用于存储节目流。
该系统还包括:
用户接口模块, 用于管理组播业务处理系统的用户信息, 接收来自 受控组播模块的用户点播信息并转换成组播业务处理系统内部能够识 别的内部信息后发送给受控组播模块;
所述受控组播模块还包括: 将接到的用户点播信息发送给用户接口 模块; 接收来自用户接口模块的内部信息。
所述用户模板模块包括: 一个为用户单独配置节目权限的缺省模板 和 /或一个或一个以上预制节目组合及权限的套餐模板。
所述缺省模板记录用户个性化配置信息; 所述用户选择其中一个或 多个套餐月良务。
所述用户点播信息包括: 用户要点播的节目和用户端口标识。
所述组播业务处理系统为独立实体, 或设置在数字用户线集中器
DSLAM中。
一种组播业务处理系统, 其特征在于, 包括受控组播模块、 组播转 发模块、 组播协议处理模块、 用户模板模块和用户接口模块; 所述受控组播模块用于接收来自用户接口模块的用户点播信息 , 在 用户模板模块中遍历以获得用户对该所点播节目的权限; 所述组播转发 模块转发节目流给用户端口模块; 所述组播协议处理模块用于转换组播 业务处理系统与骨干网路由器之间交互的信息的协议; 所述用户模板模 块存储有每个用户绑定的为用户单独配置节目权限的缺省模板或 /和预 制节目组合及权限的套餐模板。
在所述组播业务处理系统收到用户点播节目及用户端口标识后执 行以下步骤: 将用户点播节目及用户端口标识传给所述受控组播模块; 由所述受控组播模块遍历所述用户模板模块中具有所述用户端口标识 的用户全部已经绑定的模板, 从中获得当前用户对所述用户点播节目的 权限; 如果用户没有观看的权限, 则不转发任何节目流; 如果用户有该 节目的权限且节目流已经转发到组播业务处理系统, 则直接由所述组播 转发模块转发节目流给用户端口; 如果用户有该节目的权限且节目流还 未下发到组播业务处理系统, 则通过组播协议处理模块向上层路由器发 送 IGMP报告报文, 要求转发用户点播的节目。
本发明提供的组播业务处理方法和系统, 通过套餐方式和个性化方 式结合, 为组播用户的权限配置提供了灵活的解决方案, 也为组播业务 运营商提供了更高效更灵活的权限发送方式, 从而增强了組播业务处理 的灵活性, 实现了用户的个性化服务; 本发明还支持一个用户绑定多个 模板, 同时为组播用户的权限配置提供了更丰富的权限发送方式。另夕卜, 本发明还提出了特权用户的处理方式, 为特权用户提供了真正的高效和 方便的特权处理而不受业务增加的影响。 附图简要说明
图 1是本发明组播业务处理系统组成结构示意图; 图 2是本发明组播业务处理的流程图;
图 3是本发明組播业务处理系统另一组成结构示意图。 实施本发明的方式
为使本发明的目的、 技术方案及优点更加清楚明白, 以下参照附图 并举较佳实施例, 对本发明进一步详细说明。
图 1是本发明组播业务处理系统组成结构示意图, 如图 1所示, 本发 明组播业务处理系统包括用户接口模块 101、 受控组播模块 102、 组播转 发模块 103、 组播协议处理模块 104、 用户模板模块 105 , 以及节目库模 块 100。 本发明组播业务处理系统可以是独立的实体, 也可以设置在数 字用户线集中器(DSLAM ).中。
其中, 用户接口模块 101用于管理组播业务处理系统的用户信息 , 在点播过程中接收来自受控组播模块 102的用户点播信息, 并将接收到 的用户点播信息转换成组播业务处理系统内部能够识别的内部信息后 发送给受控组播模块 102;
受控组播模块 102用于接收来自组播转发模块 103的用户点播信息 并发送给用户接口模块 101 , 接收来自用户接口模块 101的内部信息并按 照该内部信息, 在用户模板模块 105中遍历用户已经绑定的模板, 以获 得用户对所点播节目的权限; 若受控组播模块 102已接收到通过骨干网 路由器发送来的节目流, 则将所述存储在节目库模块 100中的节目流发 送给组播转发模块 103; 若受控组播模块 102未接收到通过骨干网路由器 发送来的节目流, 则通知组播转发模块 103将 IGMP报告报文转发给组播 协议处理模块 104;
組播转发模块 103 , 接收来自用户的 IGMP报告报文, 解析该 IGMP 报告报文获得用户点播信息, 比如用户要点播的节目和用户端口标识, 并传给受控组播模块 102; 接收来自受控組播模块 102的节目流, 并转发 给用户, 或在接收到来自受控组播模块 102的通知转发 IGMP报告报文的 通知时, 将接收到的 IGMP报告报文转发给组播协议处理模块 104; 组播协议处理模块 104用于转换组播业务处理系统与骨干网路由器 之间交互的信息的协议;
用户模板模块 105用于存储用户绑定的缺省模板、 套餐模板; 在用 户模板模块 105中存储有每个用户绑定的一个为用户单独配置节目权限 的缺省模板和 /或一个或一个以上预制节目组合及权限的套餐模板。 其 中, 缺省模板记录用户个性化配置信息, 每个用户可以任意更改属于该 用户的缺省模板, '套餐模板是运营商提供的打包式组合服务。 运营商可 以提供多种套餐, 任何一个用户可以选择其中一个或多个套餐服务, 此 时, 该用户在用户模板模块 105中, 不仅绑定有缺省模板以满足套餐服 务不能满足的个性需求, 还绑定有多个套餐模板。
节目库模块 100用于存储节目流, 节目流通过骨干网路由器, 经组 播协议处理模块 104的协议转换后, 成为符合组播业务处理系统协议的 节目流, 并在受控组播模块 102的控制下存储到节目库模块 100中。
图 3是本发明组播业务处理系统另一组成结构示意图, 如图 3所示, 组播业务处理系统包括用户接口模块 101、 受控组播模块 102、 组播转发 模块 103、 组播协议处理模块 104和用户模板模块 105 , 其中, 在用户模 板模块 105中存储有每个用户绑定的一个为用户单独配置节目权限的缺 省模板或 /和一个或一个以上预制节目组合及权限的套餐模板。 其中, 缺 省模板记录用户个性化配置信息, 每个用户可以任意更改属于该用户的 缺省模板, 套餐模板是运营商提供的打包式组合服务。 运行商可以提供 多种套餐, 任何一个用户可以选择其中一个或多个套餐服务, 此时, 该 用户在用户模板模块 105中, 不仅绑定有缺省模板以满足套餐不能满足 的个性需求, 还绑定有多个套餐模板。
图 3中, 在所述组播业务处理系统收到用户点播节目及用户端口标 识后执行以下步骤: 将用户点播节目及用户端口标识传给所述受控组播 模块 102; 由所述受控组播模块 102遍历所述用户模板模块 105中具有所 述用户端口标识的用户全部已经绑定的模板, 从中获得当前用户对所述 用户点播节目的权限;如果用户没有观看的权限,则不转发任何节目流; 如果用户有该节目的权限且节目流已经转发到組播业务处理系统, 则直 接由所述组播转发模块 103转发节目流给用户端口; 如果用户有该节目 的权限且节目流还未下发到组播业务处理系统, 则通过组播协议处理模 块 104向上层路由器发送 IGMP报告报文, 要求转发用户点播的节目。
图 2是本发明组播业务处理的流程图, 如图 2所示, 假设已建立了 各种模板即在模板表中添加相关节目表的权限, 并完成模板的绑定即已 在用户表中添加了相关模板同时设置了用户绑定, 也就是已为每个用户 绑定为用户单独配置节目权限的缺省模板和 /或预制节目组合及权限的 套餐模板, 本发明组播业务处理的方法包括以下步骤:
步驟 200 ~步骤 201: 组播业务处理系统接收到来自用户的用户点 播节目请求后, 查询用户表, 根据点播节目请求的用户的用户数据结构 判断当前用户是否为特权用户, 若是则进入步骤 204; 否则, 进入步骤 202。
本发明中用户点播节目请求携带的数据结构主要有三种数据结构: 用户数据结构、 模板数据结构和节目数据结构, 具体描述如下:
用户数据结构包括用户标识、 特权标记、 个性模板位表和绑定模板 位表四个字段。 其中, 用户标识用于唯一标识系统中的用户; 特权标记 用于表明该用户是否是特权用户; 个性模板位表用于保存用户对节目的 个性化权限即缺省模板; 绑定模板位表用于保存与该用户绑定的对应的 套餐模板。
模板数据结构包括模板索引、模板名称和节目位表三个字段。其中, 模板索引用于唯一标识系统的一个模板; 模板名称是模板命名的有意义 的名称; 节目位表用于保存该模板有权限的节 g 。
节目数据结构包括节目索引、节目名称和节目 IP地址三个字段。其 中, 节目索引用于唯一标识系统中的一个节目; 节目名称是节目命名的 有意义的名称; 节目 IP地址用于存储该节目对应的组播 IP地址。
其中, 节目数据结构被模板数据结构和用户数据结构分别通过节目 位表和个性模板位表调用; 用户数据结构通过绑定模板位表来调用模板 数据结构。 '
本步骤中, 若用户数据结构中特权标记位显示为特权用户或存在标 记, 则当前用户为特权用户, 若显示为非特权用户或无标记, 则当前用 户不是特权用户。
步骤 202: 通过当前用户的用户数据结构中的个性模板位表, 查询 当前用户的个性化模板即缺省模板, 若个性化模板中的节目表指示当前 用户具有所点播的节目的权限, 则进入步驟 204; 否则, 进入步骤 203。
本步骤中, 若个性化模板中的节目位表指示当前用户具有所点播的 节目的权限, 那么, 按照个性化方式进行用户点播。 个性化方式就是按 照为用户单独配置节目权限的缺省模板为用户播放有权限的节目。
步骤 203: 查询当前用户的用户数据结构中的绑定模板位表, 如果 在该绑定模板位表中查出该用户有点播节目的权限, 则进入步骤 204; 否则, 进入步骤 205。
本步骤中, 若在绑定模板位表中查出该用户有点播节目的权限, 那 么, 按套餐方式进行用户点播。 套餐方式就是按照预制节目组合及权限 的套餐模板为用户播放有权限的节目。 需要说明的是, 本发明方法也可以先判断用户点播的节目是否具有 套餐模板中节目表的权限, 若具有, 则组播业务处理系统转发当前用户 点播的节目; 否则, 进一步判断用户点播的节目是否具有缺省模板中节 目表的权限, 若具有, 则组播业务处理系统转发当前用户点播的节目; 若不具有, 则组播业务处理系统不转发当前用户点播的节目。
步骤 204: 组播业务处理系统转发当前用户点播的节目, 结束本流 程。
这里假设节目流已转发给组播业务处理系统。
若节目流未转发给组播业务处理系统, 则本步骤在转发节目流之 前, 还包括: 组播业务处理系统向骨干网路由器要求转发用户点播的节 目。
步骤 205: 组播业务处理系统不转发当前用户点播的节目。
下面结合图 1 , 对按套餐方式或个性化方式用户点播的受控过程及 特权用户的处理分别说明如下:
( 1 )按套餐方式进行用户点播的受控过程。
组播转发模块 103从来自用户的 IGMP报告报文中获得用户要点播 的节目和用户端口标识, 并发送给受控组播模块 102。 受控组播模块 102 在用户接口模块 101和用户模板模块 105中遍历用户已经绑定的模板, 此 时, 用户可能绑定一个模板, 也可同时绑定多个模板, 从用户模板模块 105获得该节目的权限类型, 通过多次比较获得用户对该节目的最终权 限, 这里, 多次是指用户可能绑定多个模板, 需要多次才能读取完毕。 由于各模板可能对同一个节目有不同的权限如预览、 观看全部节目、 观 看部分节目等, 那么, 用户对该节目的最终权限就需要将各模板中的权 限进行叠加后得到。 对于点播的节目, 若获得的最终权限类型是用户不 能观看的权限, 则不转发节目流给用户; 若用户最终权限有该节目的权 限且节目流已经转发到组播业务处理系统, 则直接由组播转发模块 103 转发节目流给用户; 若节目流还未下发到组播业务处理系统, 则在受控 组播模块 102的控制下, 组播转发模块 103通过组播协议处理模板 104向 骨干网路由器转发所述 IGMP报告报文, 要求转发用户点播的节目。
对于叠加后获得最终权限, 这里举例进行说明。 假设模板 P1具有节 目 C1和节目 C2的权限, 且节目 C1的权限是观看全部节目, 节目 C2的权 限是预览; 模板 P2具有节目 C1的权限, 且节目 C1的权限是预览。 这里假 定预览的权限级别低于观看全部节目的权限级别, 且系统设定叠加后按 照低级别的权限为最终权限。 那么, 若用户点播节目 C1 , 系统对用户绑 定的模板 P1和模板 P2进行查询,得出用户对节目 C1的两个权限: 观看全 部节目和预览, 此时, 由于系统设定叠加后按照低级别的权限为最终权 限, 所以用户对节目 C1的最终权限为预览。
容易得出, 如果系统设定叠加后按照高级别的权限为最终权限, 那 么用户对节目 C1的最终权限为观看全部节目。
( 2 )按个性化方式进行用户点播的受控过程。
组播转发模块 103从来自用户的 IGMP报告报文中获得用户要点播 的节目和用户端口标识, 并传给受控组播模块 102。 受控组播模块 102在 用户接口模块 101和用户模板模块 105中遍历用户已经绑定的节目表, 从 中获得该节目的权限类型。 若用户没有观看的权限, 则不转发节目流给 用户; 若用户有该节目的权限且节目流已经转发到组播业务处理系统, 则直接由组播转发模块 103转发节目流给用户端口; 若节目流还未下发 到组播业务处理系统, 则在受控组播模块 102的控制下, 组播转发模块 103通过組播协议处理模块 104向骨干网路由器转发所述 IGMP报告报 文, 要求转发用户点播的节目。
个性化方式的受控过程与套餐方式的区别就在于获得节目权限的 过程有所不同。
从本发明组播业务处理系统及按套餐方式 /个性化方式用户点播的 受控过程来看, 由于在用户模板模块 105中, 并存有一个也可以是多个 套餐模板及一个缺省模板, 无论哪一种, 均以模板方式统一处理, 实现 了套餐与个性化业务形式并存。 换言之, 本发明通过以下两个方面, 实 现了在同一组播业务处理系统中同时实现组播业务的套餐和个性化设 置:
一方面是表项设置及模板的设置。 现有技术中, 用户只能绑定特定 的某个模板, 如果要想更换模板只能重新绑定; 而本发明中, 釆用多模 板的绑定, 也就是说一个用户可以和任意多个模板绑定, 而其中有一个 模板是和用户缺省设置绑定的缺省模板, 该缺省模板用于用户的个性化 设置, 从而增强了业务配置的灵活性。 仍以前述的例子说明, 如果想让 某个用户只能观看频道 C1和频道 C3的节目, 在只有三个模板的基础上, 其中模板 P1有频道 C1的观看权限、 模板 P2有频道 C1和频道 C2的观看权 限、 模板 P3有频道 Cl、 C2和 C3的观看权限, 利用本发明方案, 在为用 户绑定模板时, 可以先给用户绑定模板 P1 , 然后在缺省的绑定模板上赋 予观看频道 C3的节目的权限, 该缺省模板对用户是不可见, 而表现为对 个性化属性的设置;
另一方面是, 由于记录个性化设置属性的缺省模板对系统来说仍然 是某个模板, 使得用户点播节目的受控过程与传统的过程相同, 并没有 复杂化, 只是该模板用户不可见而已。 所以, 在用户点播受控过程中, 要想查阅用户对某个节目的权限类型, 仍然是遍历用户的绑定的全部模 板, 从中找到最高的节目权限, 以此作为节目流转播的依据。
( 3 )对特权用户的处理。
对特权用户以特殊标记进行标识, 而不将其作为超级普通用户处 理, 主要是考虑到用户配置的方便性, 这样就无须对特权用户绑定各种 权限的模板或授予全部节目的权限; 另一方面, 对于组播业务处理系统 可以针对特权用户进行特殊的处理, 包括流控、 优先级等。 具体地说, 对特权用户, 由于在用户端口标识设置一个特殊标记, 在组播业务处理 系统收到携带有用户点播节目及包含所述特殊标记的用户端口标识的
IGMP报告报文后, 根据所述特殊标记直接判断点播节目流是否已经转 发到组播业务处理系统, 若是则直接由组播转发模块 103转发节目流给 用户, 否则, 通过组播协议处理模板 104向上层路由器转发 IGMP报告 报文, 要求转发用户点播的节目。 此处, 无须进行权限获取及判断的程 序, 因此, 具有真正的特权而不受业务增加的影响。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的 保护范围, 凡在本发明的精神和原则之内所做的任何修改、 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、 一种组播业务处理方法, 其特征在于, 在模板表中添加节目表的 权限, 在用户表中添加用户绑定的缺省模板和 /或套餐模板, 该方法包括 以下步驟:
组播业务处理系统根据接收到的用户点播节目请求, 查询所述缺省 模板或套餐模板, 判断当前用户所点播的节目是否具有权限, 若具有, 则组播业务处理系统转发当前用户点播的节目; 否则, 不转发当前用户 点播的节目。
2、 居权利要求 1 所述的方法, 其特征在于, 所述判断当前用户 所点播的节目是否具有权限的方法为:
A. 所述組播业务处理系统查询所述缺省模板, 并判断当前用户所 点播的节目是否具有权限, 若具有, 则进入步骤 C; 若不具有, 则进入 步驟 B;
B. 查询所述套餐模板, 并判断当前用户所点播的节目是否具有权 限, 若具有, 则进入步驟 C; 否则, 进入步骤 D;
C. 组播业务处理系统转发当前用户点播的节目, 结束本流程;
D. 组播业务处理系统不转发当前用户点播的节目。
3、 居权利要求 1 所述的方法, 其特征在于, 所述判断当前用户 所点播的节目是否具有权限的方法为:
A. 所述组播业务处理系统查询所述套餐模板, 并判断当前用户所 点播的节目是否具有权限, 若具有, 则进入步驟 C; 若不具有, 则进入 步驟 B;
B. 查询所述缺省模板, 并判断当前用户所点播的节目是否具有权 限, 若具有, 则进入步骤 C; 否则, 进入步骤 D; C. 组播业务处理系统转发当前用户点播的节目, 结束本流程;
D. 组播业务处理系统不转发当前用户点播的节目。
4、 根据权利要求 2或 3所述的方法, 其特征在于, 步骤 A中, 所 述组播业务处理系统查询之前, 该方法还包括:
所述组播业务处理系统查询所述用户表并判断当前用户是否为特权 用户, 若是, 则进入步骤 C; 否则, 继续执行步骤 A。
5、根据权利要求 4所述的方法, 其特征在于, 所述用户点播节目请 求中携带有: 用户数据结构、 模板数据结构和节目数据结构;
所述用户数据结构包括: 用于唯一标识系统中的用户的用户标识、 用于表明该用户是否是特权用户的特权标记、 用于保存用户对节目的个 性化权限的个性模板位表; 用于保存与该用户绑定的对应的套餐模板的 绑定模板位表;
所述模板数据结构包括:用于唯一标识系统的一个模板的模板索引、 模板名称、 用于保存该模板有权限的节目的节目位表;
所述节目数据结构包括: 用于唯一标识系统中的一个节目的节目索 引、 节目名称、 用于存储该节目的组播地址的节目 IP地址。
6、根据权利要求 5所述的方法, 其特征在于, 所述判断当前用户是 否为特权用户的方法为:
判断所述用户数据结构中的特权标记是否表明当前用户是特权用 户, 若表明是, 则当前用户为特权用户; 否则, 当前用户不为特权用户。
7、 根据权利要求 5 所述的方法, 其特征在于, 所述判断当前用户 所点播的节目是否具有所述缺省模板中节目表的权限的方法为:
通过当前用户的所述用户数据结构中的个性模板位表, 查询当前用 户的所述缺省模板, 若缺省模板中的节目表指示当前用户所点播的节目 具有节目权限, 则具有所述缺省模板中节目表的权限; 否则, 不具有。
8、 根据权利要求 5 所述的方法, 其特征在于, 所述判断当前用户 所点播的节目是否具有所述套餐模板中节目表的权限的方法为:
查询当前用户的所述用户数据结构中的绑定模板位表, 若在该绑定 模板位表中查出该用户有点播节目的权限, 则具有所述套餐模板中节目 表的权限; 否则, 不具有。
9、根据权利要求 8所述的方法, 其特征在于, 若所述用户绑定的套 餐模块为一个以上, 则所述组播业务处理系统通过多次比较, 将各模板 中的权限进行叠加后获得用户对该节目的最终权限, 并按照该最终权限 判断该用户是否具有有点播节目的权限。
10、 根据权利要求 5所述的方法, 其特征在于, 所述转发当前用户 点播的节目的方法为:
所述组播业务处理系统通过所述节目位表和个性模板位表调用所述 节目数据结构, 通过所述绑定模板位表调用所述用户数据结构; 根据所 述组播地址获得当前用户点播的节目并发送给当前用户。
11、 根据权利要求 10所述的方法, 其特征在于, 在步骤 C中, 所 述转发当前用户点播的节目之前, 该方法还包括: 所述组播业务处理系 统向骨干网路由器要求转发用户点播的节目。
12、 根据权利要求 1所述的方法, 其特征在于: 所述用户点播节目 请求为 Internet组播管理协议 IGMP报告报文。
13、 一种组播业务处理系统, 其特征在于, 该系统包括:
组播转发模块, 接收来自用户的用户点播节目请求以获得用户点播 信息并传给受控组播模块; 接收来自受控组播模块的节目流, 并转发给 用户, 或者在接收到来自受控组播模块的通知转发用户点播节目请求的 通知时, 将接收到的用户点播节目请求转发给組播协议处理模块;
受控组播模块, 用于接收来自组播转发模块的用户点播信息, 在用 户模板模块中遍历以获得用户对该所点播节目的权限; 将所述存储在节 目库模块中的节目流发送给组播转发模块, 或者通知组播转发模块将用 户点播节目请求转发给组播协议处理模块;
组播协议处理模块, 用于转换组播业务处理系统与骨干网路由器之 间交互的信息的协议; - 用户模板模块, 用于存储用户绑定的模板;
节目库模块用于存储节目流。
14、 根据权利要求 13所述的系统, 其特征在于, 该系统还包括: 用户接口模块, 用于管理组播业务处理系统的用户信息, 接收来自 受控组播模块的用户点播信息并转换成组播业务处理系统内部能够识 别的内部信息后发送给受控组播模块;
所述受控组播模块还包括: 将接到的用户点播信息发送给用户接口 模块; 接收来自用户接口模块的内.部信息。
15、 根据权利要求 13所述的系统, 其特征在于, 所述用户模板模块 包括:一个为用户单独配置节目权限的缺省模板和 /或一个或一个以上预 制节目组合及权限的套餐模板。
16、 根据权利要求 15所述的系统, 其特征在于, 所述缺省模板记录 用户个性化配置信息; 所述用户选择其中一个或多个套餐服务。
17、 根据权利要求 13所述的系统, 其特征在于, 所述用户点播信息 包括: 用户要点播的节目和用户端口标识。
18、 根据权利要求 13所述的系统, 其特征在于: 所述組播业务处理 系统为独立实体, 或设置在数字用户线集中器 DSLAM中。
19、 一种组播业务处理系统, 其特征在于, 包括受控组播模块、 组 播转发模块、 组播协议处理模块、 用户模板模块和用户接口模块;
所述受控组播模块用于接收来自用户接口模块的用户点播信息, 在 用户模板模块中遍历以获得用户对该所点播节目的权限; 所述组播转发 模块转发节目流给用户端口模块; 所述组播协议处理模块用于转换组播 业务处理系统与骨干网路由器之间交互的信息的协议; 所述用户模板模 块存储有每个用户绑定的为用户单独配置节目权限的缺省模板或 /和预 制节目组合及权限的套餐模板。
20、 根据权利要求 19所述的系统, 其特征在于, 在所述组播业务处 理系统收到用户点播节目及用户端口标识后执行以下步骤: 将用户点播 节目及用户端口标识传给所述受控组播模块; 由所述受控组播模块遍历 所述用户模板模块中具有所述用户端口标识的用户全部已经绑定的模 板, 从中获得当前用户对所述用户点播节目的权限; 如果用户没有观看 的权限, 则不转发任何节目流; 如果用户有该节目的权限且节目流已经 转发到组播业务处理系统, 则直接由所述组播转发模块转发节目流给用 户端口模块; 如果用户有该节目的权限且节目流还未下发到組播业务处 理系统, 则通过组播协议处理模块向上层路由器发送 IGMP报告报文, 要求转发用户点播的节目。
PCT/CN2006/000084 2005-01-19 2006-01-19 Procede pour traiter un service de multidiffusion et systeme correspondant WO2006076861A1 (fr)

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