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WO2010022570A1 - 基于网际协议电视的信息推送方法、装置及系统 - Google Patents

基于网际协议电视的信息推送方法、装置及系统 Download PDF

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Publication number
WO2010022570A1
WO2010022570A1 PCT/CN2008/073217 CN2008073217W WO2010022570A1 WO 2010022570 A1 WO2010022570 A1 WO 2010022570A1 CN 2008073217 W CN2008073217 W CN 2008073217W WO 2010022570 A1 WO2010022570 A1 WO 2010022570A1
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WO
WIPO (PCT)
Prior art keywords
function entity
control function
information
service control
user equipment
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2008/073217
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English (en)
French (fr)
Inventor
夏宏飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
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 ZTE Corp filed Critical ZTE Corp
Priority to US13/060,603 priority Critical patent/US20110162022A1/en
Priority to EP08876813.0A priority patent/EP2320617B1/en
Priority to RU2011111685/08A priority patent/RU2480936C2/ru
Publication of WO2010022570A1 publication Critical patent/WO2010022570A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1069—Session establishment or de-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/55—Push-based network services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/64—Addressing
    • H04N21/6405—Multicasting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643—Communication protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643—Communication protocols
    • H04N21/64322—IP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • H04N21/6583—Acknowledgement

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, device and system for information push based on a network protocol television.
  • NGN Next Generation Network
  • the IP Multimedia Subsystem (IMS) is a collection of the main functional entities at the service control level. Through IMS, the registration and authentication, authentication, and Quality of Service (QoS) management and guarantee of users and terminal devices can be realized.
  • IMS IP Multimedia Subsystem
  • IMS is a Session Initiation Protocol (SIP)-based system that supports multiple users' access, user nomadic and mobility management, and supports interworking and services with other traditional networks or next-generation networks. Fusion.
  • SIP Session Initiation Protocol
  • IMS has become the main technology and architecture for next-generation network convergence.
  • the interactive network television also known as the Internet Protocol Television (IPTV) refers to the provision of live, on-demand and time-shifted broadcasts of television programs capable of supporting interactive functions through the IP bearer network. The general name of the equipment.
  • IPTV transmits TV signals through the Internet protocol through the telecom channel, using Asymmetric Digital Subscriber Line (ADSL) or Ethernet access broadband network, to set up the TV set-top box (STB) )
  • Asymmetric Digital Subscriber Line (ADSL) or Ethernet access broadband network to set up the TV set-top box (STB)
  • STB TV set-top box
  • IPTV provides a variety of digital media services including TV programs.
  • NGN and IPTV can provide functions such as on-demand, live broadcast, and video recording for user terminals.
  • these functions are implemented based on active requests of user equipments, resulting in too few services implemented by operators, which is not conducive to improvement.
  • the competitiveness of the IPTV system SUMMARY OF THE INVENTION
  • the present invention provides an improved playback technology solution for a live broadcast service, which is used to solve the problem that the service provider can only actively provide services by the user equipment.
  • an IPTV-based information push method is provided, which is applied to a next-generation network system including an Internet Protocol Television IPTV Service Control Function entity, a Service Control Function Entity, and a Transmission Processing Function Entity.
  • the IPTV-based information push method according to the present invention includes: the IPTV service control function entity sends an initial session request for playing information to the user equipment via the service control function entity, where the initial session request carries the identifier of the information; After the initial session request is determined, the user is allowed to join the multicast channel of the information corresponding to the identifier according to the foregoing identifier that is carried in the initial session request and interacts with the foregoing transport processing function entity. Receive multicast stream.
  • an IPTV-based information push system includes: an IPTV service control function entity, a service control function entity, and a transport processing function entity.
  • the IPTV service control function entity is configured to send an initial session request for playing information to the user equipment via the service control function entity;
  • the service control function entity is configured to receive the initial session request from the IPTV service control function entity, and according to the initial session request The information carried in the foregoing forwards the initial session request to the user equipment;
  • the transmission function entity is configured to interact with the user equipment, and send the multicast stream to the user equipment.
  • an IPTV service control function entity is provided.
  • the IPTV service control function entity includes: an obtaining module, configured to acquire an identifier of information recommended to the user; and a sending module, configured to send, by the service control function entity, an initial session request carrying the identifier, to the user equipment, The initial session request is used to request the user equipment to play information corresponding to the foregoing identifier.
  • the initial session request is sent to one or more user equipments on the network side, and the user is requested to play the recommended information.
  • the user who receives the request may choose to immediately view the information recommended by the network side, and solve the problem.
  • the content service can be implemented only by the user equipment, and the content service implemented by the operator can be increased.
  • FIG. 1 is a schematic structural diagram of an NGN-based IPTV system
  • FIG. 2 is a structural block diagram of an IPTV-based information push system according to an embodiment of the present invention
  • FIG. 3A is an IPTV service control function entity according to an embodiment of the present invention
  • FIG. 3B is a structural block diagram of an IPTV service control function entity according to a preferred embodiment of the present invention
  • FIG. 4 is a flowchart of an IPTV-based information push method according to an embodiment of the present invention
  • FIG. 1 is a schematic structural diagram of an NGN-based IPTV system
  • FIG. 2 is a structural block diagram of an IPTV-based information push system according to an embodiment of the present invention
  • FIG. 3A is an IPTV service control function entity according to an embodiment of the present invention
  • FIG. 3B is a structural block diagram of an IPTV service control function entity according to a preferred embodiment of the present invention
  • FIG. 4 is a flowchart of an IPTV-based information push method according to an embodiment of the present invention
  • FIG. 6 is a specific implementation flow of resource reservation in an embodiment of the present invention
  • FIG. 7 is a specific implementation process of another resource reservation in an embodiment of the present invention.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As described above, the present invention is directed to the problem that the content service can only be based on the active request of the user equipment in the prior art, and an IPTV-based information push scheme is proposed, in which IPTV is adopted.
  • the service control function entity sends an initial session request for playing information to one or more user equipments through the service control function, and recommends information to one or more users.
  • the user equipment receiving the initial session request accepts playing the information
  • the user The device interacts with the transport function entity to add the user equipment to the multicast channel.
  • the user equipment starts to receive the multicast stream and plays the information recommended by the network.
  • the initial session request sent by the IPTV service control function entity carries the recommended letter.
  • the identification and description information of the information wherein the description information may be a brief description of the information, and the user may determine whether to play the information according to the description information, such as describing the information as news, weather forecast or interview.
  • the information recommended to the user is a live broadcast service to be played, and the IPTV service control function entity sends the initial session request to the user equipment before the live broadcast service is played.
  • the following description merely provides the exemplary embodiment(s), and is not intended to limit the scope, applicability, or configuration of the disclosure.
  • FIG. 1 is a schematic structural diagram of an NGN-based IPTV system.
  • an NGN-based IPTV system mainly includes: a user equipment (User Equipment, referred to as UE) 11.
  • UE User Equipment
  • a service control function entity (if an IMS is used in the NGN) , is the core IMS - core IMS 12, IPTV Service Control Functions (IPTV Service Control Functions, IPTV SCF for short) 13, IPTV Media Functions (IPTV Media Functions, IPTV MF for short) 14, transmission processing function Transport Processing Functions (TPF) 15. Service Selection Functions (SSF) 16 and Resource and Admission Control Subsystem (RACS) 17.
  • IPTV Service Control Functions IPTV Service Control Functions, IPTV SCF for short
  • IPTV Media Functions IPTV Media Functions, IPTV MF for short
  • TPF Transmission processing function Transport Processing Functions
  • SSF Service Selection Functions
  • RCS Resource and Admission Control Subsystem
  • the UE 11 may specifically be a mobile phone with mobile capability, a set top box for a fixed network, a software-based soft terminal that implements a set-top box function, and a functional entity such as a home gateway. By interacting with the user, the UE can implement IPTV services such as on-demand and live broadcast.
  • the service control function entity 12 is connected to the UE 11 through the Gm interface, and is connected to the resource admission control subsystem 17 through the Gq interface, which is a set of main functional entities of the NGN service control layer, and is mainly used for session control, service authentication, authentication, charging, and the like.
  • the entity is Core IMS.
  • the service control function entity 12 is a Core IMS
  • the entity mainly includes a core module such as a P-CSCF/I-CSCF/S-CSCF core call session control.
  • Core IMS is used to provide a SIP-based session control mechanism for authenticating, authenticating, and requesting resource access control subsystems for resource allocation.
  • the Core IMS performs SIP sessions by interacting with the IPTV terminal, the IPTV application function entity, and the content distribution function entity to perform functions such as security, QoS, charging, and roaming.
  • the IPTV service control function entity 13 is connected to the service control function entity 12 through the ISC interface, and is configured to provide service authentication when the session is initiated or modified, including: checking user information, checking whether the user can legally use the selected content; Credit control; IPTV media control function entity that provides services for the system, etc., the functional entity is mainly for IPTV services such as on-demand, live broadcast, video recording, and time shift.
  • the functional entity is a SIP application server in the case of the IMS network, and is used for actively initiating content push to the UE.
  • the IPTV MF 14 connects to the UE through the Xc and Xd interfaces, wherein the UE is connected to the media stream RTSP control through the Xc interface, and the Xd interface is connected to the UE for media stream transmission and media download.
  • the functional entity can serve as a multicast source for the live media stream, and when the functional entity acts as a multicast source, the multicast stream is delivered from the IPTV MF 14 to the transport processing function entity 15, and then delivered to the UE from the transport processing function entity 15. 11 on.
  • the transmission processing function entity 15 is a network access connection and an IP core function entity, and is responsible for data transmission under the premise of guaranteeing QoS.
  • the transmission processing function entity 15 may specifically include: an elementary control function (ECF), basic Forwarding function (Elementary Forwarding Function, EFF for short) and border gateway function. among them,
  • EFF is used to forward data streams accepted from a point of entry to one or more other point outlets.
  • unicast there is only one point of the outlet; for multicast, Includes multiple flow point outlets.
  • the ECF is used to process control protocol data (e.g., routing protocol data) for unicast and multicast data received from a single point of use.
  • control protocol data e.g., routing protocol data
  • Possible functions include: sending control protocol data to other ECFs (including events that trigger policy estimation;); interacting with one or more EFFs to suggest new or modified EFF presence forwarding push behavior; and other within the transport processing function Functional interaction.
  • the SSF 16 is used to provide service selection information, such as a list of services that the terminal can access.
  • the RACS 17 is configured to complete resource control requests from the Core IMS module, determine resources for available transmissions, and interact with the bearer layer to perform functions such as bandwidth reservation, allocation, packet bypass, network address, and port translation.
  • an IPTV-based information pushing system is first provided, which is used to implement the network side to actively push information to the UE.
  • 2 is a structural block diagram of an IPTV-based information push system according to an embodiment of the present invention.
  • an IPTV-based information push system includes: an IPTV service control function entity 22, and service control. Functional entity 24 and transport processing functional entity 26.
  • the IPTV service control function entity 22 is configured to send an initial session request for playing information to the UE via the service control function entity 24; the service control function entity 24 is connected to the IPTV monthly service control function entity 22 and the UE through the network for receiving the IPTV service.
  • the initial session request of the function entity 22 is controlled, and the initial session request is forwarded to the UE according to the information carried in the initial session request.
  • the service control function entity 24 corresponds to Is the Core IMS in IMS.
  • the transport function entity 26 is connected to the service control function entity 24 and the UE through the network for interacting with the UE and transmitting the multicast stream to the UE.
  • the information includes the live broadcast service, that is, the information recommended by the IPTV service control function entity 22 to the UE through the initial session request is the live broadcast service, and after receiving the initial session request, the UE may select to view the live broadcast program provided by the live broadcast service. Optionally, the viewing is rejected, and the selection result is sent to the IPTV service control function entity 22 through the response message.
  • the transmission processing function entity 26 transmits the multicast of the live service. Lost to the UE.
  • the live broadcast service is obtained according to the analysis and statistics of the favorite information of the selected content of the UE, or the live broadcast program provided by the live broadcast service is a live broadcast program with a high click rate.
  • the IPTV service control function entity is further configured to carry the request parameter in the sent initial session request, where the request parameter includes but is not limited to the following content:
  • Push identifier information used to indicate that the recommended live broadcast service is a live broadcast of a channel that needs to be directly viewed, rather than a media file or stream that needs to be stored, or a push-on-demand program.
  • the request parameter also needs to include a list of the identifiers of the unique identifiers of the UE, indicating which UEs the initial session request needs to be sent to, and the identifiers in the identifier information list may be one or more.
  • the IPTV-based information push system of the embodiment of the present invention can implement that the network side actively pushes the live broadcast service to the UE.
  • an IPTV service control function entity is further provided, and the IPTV service control function entity is applicable to the IPTV-based information push system.
  • 3A is a structural block diagram of an IPTV service control function entity according to an embodiment of the present invention.
  • an IPTV service control function entity includes: an obtaining module 32 and a sending module 34.
  • the above various modules are further described below in conjunction with the drawings.
  • the obtaining module 32 is configured to obtain an identifier of the information recommended by the user.
  • the sending module 34 is connected to the obtaining module 32, and configured to send, by the service control function entity, an initial session request carrying the identifier, where the initial session request is used.
  • the UE is requested to play information corresponding to the target. Further, as shown in FIG.
  • the IPTV service control function entity provided by the embodiment of the present invention may further include: a reservation module 36, configured to perform channel establishment of the foregoing information with the UE, and reserve a user equipment to play the foregoing information. Resources.
  • the above information is a live broadcast service.
  • the foregoing IPTV service control function entity according to the embodiment of the present invention may actively initiate an initial session request to the UE, and recommend information to the UE.
  • an IPTV-based information pushing method is further provided, where the method is applied to a system including an IPTV service control function entity, a service control function entity, and a transmission processing function entity, and the method can utilize the IPTV service control described above. Functional entity or information push system implementation.
  • the IPTV-based information push method mainly includes the following processing (step S402 - step S404) And the IPTV service control function entity sends an initial session request of the play information to the UE, where the initial session request carries the identifier of the information.
  • Step S404 The UE receives the initial session request, and determines After receiving the above information, the user interacts with the transmission processing function entity according to the identifier carried in the initial session request, so that the UE joins the multicast channel of the information corresponding to the identifier and receives the multicast stream. Details of each of the above processes are further described below.
  • Step S402 the processing of the step may be divided into the following two steps: Step 1: The IPTV service control function entity sends an initial session request to the service control function entity, where the initial session request carries the recommended The identifier of the information and the identifier information list of the unique identifier of the UE, the identifier information list indicating that the initial session request is sent to the UE corresponding to one or more identifiers in the identifier information list, and the UE is requested to play the recommended information.
  • the IPTV may further carry description information about the recommendation information in the initial session request, For example, describe the information as belonging to news, sports, or interviews.
  • the IPTV service control function entity in order to reduce the blindness of the recommendation and cause frequent interference to the user, can analyze which type of program the user may like according to the preference of the UE to select the content, thereby making the user prefer.
  • the information type is recommended to the user; or, the IPTV service control function entity recommends the information with the current high click rate to the user.
  • Step 2 The service control function entity forwards the initial session request to the UE corresponding to each identifier in the identifier information list according to the identifier information list carried in the initial session request.
  • the foregoing information may be a live broadcast service.
  • the push identifier information is used to identify that the recommended live broadcast service is directly viewed by the user.
  • the live program of the channel not the media file or stream that needs to be stored, nor the on-demand program that is pushed; the description information of the content of the live program, for example, the title of the program, the starring actor, the approximate plot, etc.; the duration of the program, the start Time or end time, etc.
  • the IPTV service control function entity sends the initial session request to the UE before the direct program provided by the live broadcast service.
  • Step S404 After the service control function entity sends the initial session request to the UE that needs to be recommended, the UE that receives the initial session request determines whether it is required to play the IPTV service control function entity according to the pre-configuration or the user's selection. The information is carried in the response message of the initial session request, and is sent to the IPTV service control function entity via the service control function entity, and the IPTV service control function entity determines whether the UE accepts the broadcast according to the information carried in the response message. information.
  • the UE When the UE determines to accept the above information, the UE sends a request to the transmission processing function entity to request to join the multicast channel of the information corresponding to the identifier according to the identifier of the information carried in the received initial session request, and the transmission processing function
  • the UE and the IPTV service control function entity need to perform signaling delivery and reserve resources for transmitting the information content stream.
  • the process has two implementation manners, which are respectively described below. . Manner 1: The UE initiates the request by the UE.
  • Step 1 The UE sends a media provision request for suggesting one or more content delivery channels to the service control function entity.
  • Step 2 The service control function entity (if the IMS system is used in the next generation network system, Then, the resource reservation is performed according to the information in the media providing request between the P-CSCF in the Core IMS and the resource admission control subsystem;
  • Step 3 The service control function entity (or P-CSCF) controls the functional entity to the IPTV service Initiating a media providing request to establish one or more content delivery channels;
  • Step 4 The IPTV service control function entity returns a media providing response of the content delivery channel to the service control function entity;
  • Step 5 Service Control Function Entity (or P-CSCF) and
  • the resource reservation control subsystem updates the resource reservation; in the specific implementation process, the step may or may not be performed, and may be determined according to specific needs.
  • Step 6 The Service Control Function Entity (or P-CSCF) returns a media offer response to the content delivery channel to the UE.
  • Manner 2 Initiated by the IPTV service control function entity
  • Step 1 The IPTV service control function entity to the service control function entity (the corresponding Core in the IMS)
  • the P-CSCF in the IMS initiates a media provision request to establish one or more content delivery channels;
  • Step 2 resource reservation between the service control function entity (or P-CSCF) and the resource admission control subsystem;
  • Step 3 The service control function entity initiates a media provision request for establishing one or more content delivery channels to the UE;
  • Step 4 The UE returns a media provision response of the content delivery channel to the service control function entity (or P-CSCF);
  • Step 5 Update the resource reservation between the service control function entity (or P-CSCF) and the resource admission control subsystem;
  • Step 6 The service control function entity (or P-CSCF) returns the content delivery channel to the IPTV service control function entity The media provides a response.
  • the UE After determining whether to play the information recommended by the IPTV service control function entity, the UE carries the judgment result in the response message of the initial session request, and sends the result to the IPTV service control function entity via the service control function entity, and the service control function entity according to the response message Whether the UE carries the identification information of the above information, and determines whether the UE plays the above information. If the judgment result is yes, the service control function entity interacts with the resource admission control subsystem to submit the reserved resource, and And forwarding the foregoing response message to the IPTV service control function entity; if the determination result is negative, the service control function entity interacts with the resource admission control subsystem, releases the reserved resource, and forwards the response to the IPTV service control function entity.
  • the IPTV service control function entity After the IPTV service control function entity receives the response message, the IPTV service control function entity determines that the UE refuses to play the information according to the received response message, and ends the process, and no further processing is performed.
  • the network side can actively push the play information to the UE, and the content service implemented by the operator is added.
  • the following information is recommended for the live broadcast industry.
  • FIG. 5 is a flowchart of a specific implementation process of the embodiment.
  • the specific implementation process of the embodiment mainly includes the following steps: Step S502: The IPTV service control function entity actively initiates a live service packet (content, element) A live broadcast service initialization dialog of a complete audio and video program composed of data, etc., the initialization request of the dialog requesting a live broadcast service from the service control function entity.
  • the initialization request carries the request parameter.
  • the request parameter may include: push identifier information, description information of recommended channel live program content, duration of the program, and the like.
  • the request parameter further includes a list of identifier information of the unique identifier of the UE, where the identifier information list may have an identifier of one or more UEs. Moreover, in order to identify the live broadcast service requested to be requested by the UE, the identifier of the live broadcast service needs to be carried in the initialization request.
  • Step S504 The service control function entity forwards the initialization request to the UE corresponding to each identifier in the identifier information list according to the identifier information list carried in the initialization request.
  • Step S506 Whether the UE receives the channel live broadcast service stream that is accepted for playing.
  • Step S508 a signaling process for establishing one or more content delivery channels between the IPTV service control function entity and the UE, where the content delivery channel is used Processing live broadcast services.
  • the main purpose of establishing the signaling process is to reserve resources and allocate bandwidth to ensure the quality of service of channel live broadcast.
  • the response message carries the identifier information of whether the UE accepts the live broadcast service of the channel. If it is determined in step S506 that the UE rejects the channel live broadcast service stream that is played immediately, step S514 is performed, and if no, the step S512 is performed.
  • Step S512 the service control function entity (the P-CSCF corresponding to the Core IMS in the IMS system) and the resource admission control subsystem deliver all the resource information reserved in step S508, and activate the live service package in the transmission network at the edge of the network. Therefore, the UE can join the multicast stream in the multicast channel.
  • Step S514 The service control function entity forwards the session initialization response message sent by the UE to the IPTV service control function entity, if the identifier information carried in the response message indicates that the UE refuses to play the live broadcast of the channel. If the service ends, the process ends. Otherwise, step S516 is performed.
  • Step S516 The UE interacts with the transmission processing function entity in the transmission network, joins the multicast channel, starts accepting the multicast stream, and performs content control and content delivery live stream transmission.
  • step S508 if the UE acquisition network parameter occurs before the session initialization, that is, the step is triggered from the service selection function, step S508 of the embodiment is performed after the UE initiates the live broadcast service request, and FIG. 6 shows the situation.
  • Step S602 The UE sends a media providing request for suggesting one or more content delivery channels to the service control function entity;
  • Step S604 The service control function entity (or P- Resource reservation between the CSCF) and the resource admission control subsystem according to the information in the media provision request;
  • Step S606 The service control function entity (or P-CSCF) initiates a media provision request for establishing one or more content delivery channels to the IPTV monthly control function entity;
  • Step S608 The IPTV service control function entity returns content to the service control function entity.
  • Step S610 The resource reservation is updated between the service control function entity (or P-CSCF) and the resource admission control subsystem; in the specific implementation process, the step may or may not be performed, according to the specific The demand determination is determined;
  • Step S612 The service control function entity (or P-CSCF) returns a media provision response of the content delivery channel to the UE. If the UE obtains the network parameter in the session initialization process, the specific implementation process of step S508 is as shown in FIG.
  • Step S702 The IPTV service control function entity sends a service control function entity (the corresponding P in the IMS in the IMS) -CSCF) initiating a media provision request for establishing one or more content delivery channels; step S704: performing resource reservation between the service control function entity (or P-CSCF) and the resource admission control subsystem; step S706: service control function entity Initiating a media providing request for establishing one or more content delivery channels to the UE; Step S708: The UE returns a media providing response of the content delivery channel to the service control function entity (or P-CSCF); Step S710: The service control function entity (or P -CSCF) and the resource admission control subsystem update the resource reservation; Step S712: The service control function entity (or P-CSCF) returns a media provision response of the content delivery channel to the IPTV monthly service control function entity.
  • a service control function entity the corresponding P in the IMS in the IMS
  • -CSCF resource admission control subsystem
  • the IPTV service control function entity actively sends an initial session request to the UE, requests the UE to play certain information, and pushes information to the UE, and the user who receives the request may select to view immediately.
  • Information recommended by the network side thereby increasing The content service realized by the operator is added, and the competitiveness of the IPTV system is improved.
  • the IPTV service control function entity can push information to the UE in a targeted manner according to the selection or preference of the UE, thereby avoiding the blindness of pushing and improving the user.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention.
  • various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made therein are intended to be included within the scope of the present invention.

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Description

基于网际协议电视的信息推送方法、 装置及系统 技术领域 本发明涉及通信技术领域，尤其涉及一种基于网络协议电视的信息推送 方法、 装置及系统。 背景技术 目前， 下一 4弋网络（ Next Generation Network , 简称为 NGN ) 的才匡架结 构已基本确定。 在 NGN中除了包括管理层面， 还包括用户层面、 传送层面、 业务控制层面和应用层面等。 其中， IP 多媒体子系统 （ IP Multimedia Subsystem, 简称为 IMS ) 是业务控制层面的主要功能实体集合。 通过 IMS 可以实现用户和终端设备的注册、认证、鉴权、月艮务质量（ Quality of Service , 简称为 QoS )管理与保证。 同时， IMS为基于会话初始协议 ( Session Initiation Protocol , 简称为 SIP ) 的系统， 支持多种用户的接入、 用户的游牧和移动性 管理、 并支持与其他传统网络或下一代网络互通及业务的融合。 目前， IMS 已经成为下一代网络融合的主要技术和体系架构。 交互式网络电视， 又称为网际十办议电视 ( Internet Protocol Television, 简称为 IPTV ),是指通过 IP承载网络向用户提供能够支持交互能力的电视节 目的直播、 点播和时移播放等业务的设备总称。 IPTV通过电信通道， 利用非 对称数字用户线路 ( Asymmetrical Digital Subscriber Line, 简称为 ADSL )或 以太网接入宽带网，通过互联网协议来传送电视信号，以电视机加机顶盒（ Set Top Box, 简称为 STB ) 为主要终端， 提供包括电视节目在内的多种数字媒 体月艮务。 目前， 通过 NGN与 IPTV的整合， 能为用户终端提供点播、 直播和录 像等功能， 但这些功能都是基于用户设备的主动请求来实现的， 从而导致运 营商实现的业务太少， 不利于提升 IPTV系统的竟争力。 发明内容 有鉴于此， 本发明提供了一种改进的直播业务的播放技术方案， 用以解 决现有技术中只能提供由用户设备主动请求的内容业务而导致运营商难以主 动实现业务的问题。 根据本发明的一个方面， 提供了一种基于 IPTV的信息推送方法， 该方 法应用于包括网际协议电视 IPTV服务控制功能实体、 业务控制功能实体和 传输处理功能实体的下一代网络系统。 根据本发明的基于 IPTV的信息推送方法包括： IPTV服务控制功能实 体经由业务控制功能实体向用户设备发送播放信息的初始会话请求， 其中， 上述初始会话请求中携带有上述信息的标识； 用户设备接收上述初始会话请 求， 确定接受播放上述信息后， 才艮据上述初始会话请求中携带的上述标识， 与上述传输处理功能实体进行交互， 以使上述用户设备加入上述标识对应的 信息的组播频道并接收组播流。 才艮据本发明的另一个方面， 提供了一种基于 IPTV的信息推送系统。 根据本发明的基于 IPTV的信息推送系统包括： IPTV服务控制功能实 体、 业务控制功能实体和传输处理功能实体。 其中， IPTV服务控制功能实体 用于经由业务控制功能实体向用户设备发送播放信息的初始会话请求； 业务 控制功能实体用于接收来自 IPTV服务控制功能实体的上述初始会话请求， 并根据上述初始会话请求中携带的信息， 将上述初始会话请求转发给用户设 备； 传输功能实体用于与用户设备进行交互， 并向用户设备发送组播流。 根据本发明的另一个方面， 提供了一种 IPTV服务控制功能实体。 才艮据本发明的 IPTV服务控制功能实体包括： 获取模块， 用于获取向用 户推荐的信息的标识； 发送模块， 用于经业务控制功能实体向用户设备发送 携带有上述标识的初始会话请求， 其中， 该初始会话请求用于请求用户设备 播放与上述标识对应的信息。 通过本发明的上述至少一个方案，通过网络侧向一个或多个用户设备发 送初始会话请求， 向用户请求播放推荐的信息， 接收到上述请求的用户可以 选择立即观看网络侧推荐的信息， 解决了只能由用户设备主动请求实现内容 业务的问题， 可以增加运营商实现的内容业务。 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为基于 NGN的 IPTV系统的结构示意图； 图 2为根据本发明实施例的基于 IPTV的信息推送系统的结构框图； 图 3A为根据本发明实施例的 IPTV服务控制功能实体的结构框图； 图 3B为根据本发明优选实施例的 IPTV服务控制功能实体的结构框图； 图 4为根据本发明实施例的基于 IPTV的信息推送方法的流程图； 图 5为本发明实施例的具体实施过程的流程图； 图 6为本发明实施例中一种资源预留的具体实施流程； 图 7为本发明实施例中另一种资源预留的具体实施流程。 具体实施方式 功能相无述 如上所述，本发明针对现有技术中由于内容业务只能基于用户设备的主 动请求进行的问题， 提出了一种基于 IPTV的信息推送方案， 在该方案中， IPTV 服务控制功能实体通过业务控制功能向一个或多个用户设备发送播放 信息的初始会话请求， 向一个或多个用户推荐信息， 在接收到该初始会话请 求的用户设备接受播放该信息时，该用户设备通过与传输功能实体进行交互， 将该用户设备加入组播频道中， 该用户设备开始接收组播流， 播放网络侧推 荐的信息。 其中， IPTV服务控制功能实体发送的初始会话请求中携带有推荐的信 息的标识及描述信息， 其中， 描述信息可以是对该信息的简要描述， 用户可 以根据该描述信息判断是否播放该信息， 比如描述该信息是新闻、 天气预报 或访谈等。 优选地， 向用户推荐的信息为将要播放的直播业务， IPTV服务控制功 能实体在该直播业务播放前， 向用户设备发送上述初始会话请求。 以下的描述仅提供了（多个）示例性实施例， 而不是限制本公开的范围、 可应用性或配置。 相反， （多个）示例性实施例的以下描述将能够向本领域技 术人员提供实现本公开的示例性实施例的描述。 应当了解， 在不背离所附权 利要求阐明的精神和范围的情况下，可以对元件的功能和布置进行各种改变。 此外， 应当注意， 实施例可以被描述为以操作程序图、 流程图、 数据流 程图、 结构图、 或框图描述的处理。 尽管流程图可能将操作描述为顺序处理， 但是很多操作可以平行或并发执行。 另外， 可以重新排列操作的次序。 处理 在其操作完成时终止， 但是可以包括没有在附图中包括的附加步骤。 处理可 以对应于方法、 函数、 流程、 子程序、 辅程序等。 当处理对应于函数时， 其 终点对应于函数到调用函数或主函数的返回点。 以下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。 在不冲突的情况下， 本申请中的实施例及实施例中的特征可以相互组 合。 为了便于理解， 下面首先结合附图 1对基于 NGN的 IPTV系统进行简 要的介绍。 图 1为基于 NGN的 IPTV系统的结构示意图， 如图 1所示， 基于 NGN 的 IPTV系统主要包括： 用户设备 （User Equipment, 简称为 UE ) 11、 业务 控制功能实体（如果在 NGN中釆用 IMS ,则为核心 IMS - core IMS )12、 IPTV 月艮务控制功能实体 ( IPTV Service Control Functions , 简称为 IPTV SCF ) 13、 IPTV媒体功能实体 （ IPTV Media Functions, 简称为 IPTV MF ) 14、 传输处 理功能实体 （Transport Processing Functions, 简称为 TPF ) 15、 业务选择功 能实体（ Service Selection Functions , 简称为 SSF ) 16及资源接纳控制子系统 ( Resource and Admission Control Subsystem, 简称为 RACS ) 17。 以下分另 ll 描述上述各实体。
UE 11 , 具体可以为具有移动能力的手机、 固定网络的机顶盒、 实现机 顶盒功能的基于软件实现的软终端， 还包含家庭网关等功能实体。 UE 通过 与用户交互， 可以实现如点播、 直播等 IPTV业务。 业务控制功能实体 12通过 Gm接口连接 UE 11 ,通过 Gq接口连接资源 接纳控制子系统 17 , 为 NGN业务控制层面的主要功能实体的集合， 主要用 于会话控制、业务认证、鉴权、计费等在 IMS网络情况下，该实体为 Core IMS。 如果业务控制功能实体 12 为 Core IMS , 则该实体主要包含 P-CSCF/I-CSCF/S-CSCF核心呼叫会话控制等核心模块。 Core IMS用于提供 基于 SIP的会话控制机制， 对 IPTV终端用户进行认证、 鉴权， 请求资源接 纳控制子系统进行资源分配等。 Core IMS通过与 IPTV终端、 IPTV应用功能 实体及内容分发功能实体交互进行 SIP会话， 完成安全、 QoS、 计费、 漫游 等功能。
IPTV服务控制功能实体 13通过 ISC接口连接业务控制功能实体 12, 用于在会话启动或者修改的时候提供业务鉴权， 包括： 检查用户的信息、 查 看用户是否能够合法使用选择的内容； 信用限制和信用控制； 为系统选择提 供服务的 IPTV媒体控制功能实体等， 该功能实体主要针对点播、 直播、 录 像、 时移等 IPTV业务。 该功能实体在 IMS网络情况下为一个 SIP应用服务 器， 用于主动发起内容推送到 UE。 IPTV MF 14通过 Xc和 Xd接口连接 UE, 其中， 通过 Xc接口连接 UE 用于媒体流 RTSP控制， Xd接口连接 UE用于媒体流的传输和媒体下载。 该 功能实体可以作为直播媒体流的组播源， 并且当该功能实体作为组播源时， 组播流从 IPTV MF 14交付到传输处理功能实体 15 , 然后再从传输处理功能 实体 15交付到 UE 11上。 传输处理功能实体 15为网络接入连接和 IP核心功能实体，在保障 QoS 的前提下负责数据的传输， 传输处理功能实体 15 具体可以包括： 基本控制 功能 ( Elementary Control Function, 简称为 ECF ),基本转发功能 ( Elementary Forwarding Function, 简称为 EFF ) 及边界网关功能等。 其中，
EFF 用于将从一个流动点入口接受的数据流继续转发到一个或者多个 其它的流动点出口。 对于单播来说， 只有一个流动点出口； 对于组播来说， 包括多个流动点出口。
ECF用于处理从一个流动点接受的单播和组播数据的控制协议数据（例 如路由协议数据）。 可能包括的功能有： 发送控制协议数据到其他的 ECF (包 括触发策略估计的事件；)；与一个或者多个 EFF交互以建议新的或者修改 EFF 存在的转发推送行为； 与传输处理功能内其它功能的交互。
SSF 16用于提供业务选择信息， 如终端可以访问的业务的列表等。
RACS 17 , 用于完成来自 Core IMS模块的资源控制请求、 确定定可用 的传输的资源， 并与承载层交互完成带宽预留、 分配、 包过虑、 网络地址和 端口翻译等功能。 基于上述系统， 根据本发明实施例， 首先提供一种基于 IPTV的信息推 送系统， 用于实现网络侧主动向 UE推送信息。 图 2为才艮据本发明实施例的基于 IPTV的信息推送系统的结构框图， 如 图 2所示， 根据本发明实施例的基于 IPTV的信息推送系统包括： IPTV服务 控制功能实体 22、 业务控制功能实体 24和传输处理功能实体 26。 以下结合 附图进一步描述上述各个实体。
IPTV服务控制功能实体 22用于经由业务控制功能实体 24向 UE发送 播放信息的初始会话请求； 业务控制功能实体 24通过网络与 IPTV月艮务控制功能实体 22和 UE连 接， 用于接收来自 IPTV服务控制功能实体 22的初始会话请求， 并根据初始 会话请求中携带的信息， 将初始会话请求转发给 UE; 在具体实施过程中， 如果应用的系统中釆用 IMS系统， 则业务控制功能实体 24对应为 IMS中的 Core IMS。 传输功能实体 26通过网络与业务控制功能实体 24和 UE连接， 用于与 UE进行交互， 并向 UE发送组播流。 其中， 上述信息包括直播业务， 即 IPTV服务控制功能实体 22通过初 始会话请求向 UE推荐播放的信息为直播业务， UE在接受到该初始会话请求 后， 可选择观看该直播业务提供的直播节目， 也可选择拒绝观看， 并将选择 结果通过响应消息发送给 IPTV服务控制功能实体 22, 在用户选择观看该直 播业务提供的直播节目时， 传输处理功能实体 26 将该直播业务的组播流传 输给 UE。 并且， 上述直播业务是才艮据 UE选择内容的喜好信息分析统计得到的 , 或该直播业务提供的直播节目为目前点击率高的直播节目。 进一步地， 为了方便 UE 判断是否播放该直播业务提供的直播节目， IPTV服务控制功能实体还用于在发送的初始会话请求中可以携带请求参数， 其中， 该请求参数中包括但不限于以下内容：
( 1 ) 推送标示符信息， 用于指示推荐的直播业务为需要直接观看的频 道的直播节目而不是需要存储的媒体文件或者流、 也不是推送点播节目需要
UE直接观看等其他情况； ( 2 ) 推荐的直播节目内容的描述信息， 如节目的片名、 主演演员、 大 概情节等内容；
( 3 ) 节目的持续时间等信息。 当然， 在请求参数中还需要包含 UE的唯一标识的标识信息列表， 指示 该初始会话请求需要发送给哪些 UE, 标识信息列表中标识可以为一个也可 以为多个。 通过本发明实施例的上述基于 IPTV的信息推送系统， 可以实现网络侧 主动向 UE推送直播业务。 根据本发明实施例， 还提供了一种 IPTV服务控制功能实体， 该 IPTV 服务控制功能实体可应用在上述基于 IPTV的信息推送系统中。 图 3A为根据本发明实施例的 IPTV服务控制功能实体的结构框图， 图
3B为根据本发明优选实施例的 IPTV服务控制功能实体的结构框图，如图 3A 所示， 根据本发明实施例的 IPTV服务控制功能实体包括： 获取模块 32和发 送模块 34。 以下结合附图进一步描述上述各个模块。 获取模块 32用于获取向用户推荐的信息的标识； 发送模块 34与获取模块 32连接， 用于经业务控制功能实体向 UE发送 携带有上述标识的初始会话请求， 其中， 该初始会话请求用于请求 UE播放 与该标只对应的信息。 进一步地， 如图 3B所示， 本发明实施例提供的 IPTV服务控制功能实 体还可以包括： 预留模块 36用于与 UE进行上述信息的频道的建立， 预留用 户设备播放上述信息所需的资源。 优选地， 上述信息为直播业务。 根据本发明实施例的上述 IPTV服务控制功能实体， 可以主动向 UE发 起初始会话请求， 向 UE推荐信息。 根据本发明实施例， 还提供了一种基于 IPTV的信息推送方法， 该方法 应用于包括 IPTV服务控制功能实体、 业务控制功能实体和传输处理功能实 体的系统， 该方法可以利用上述的 IPTV服务控制功能实体或信息推送系统 实现。 图 4为才艮据本发明实施例的基于 IPTV的信息推送方法的流程图， 如图 4所示， #居本发明实施例的基于 IPTV 的信息推送方法主要包括以下处理 (步骤 S402 -步骤 S404 ): 步骤 S402: IPTV服务控制功能实体经由业务控制功能实体向 UE发送 播放信息的初始会话请求， 其中， 上述初始会话请求中携带有上述信息的标 识； 步骤 S404: UE接收上述初始会话请求， 确定接受播放上述信息后， 根 据初始会话请求中携带的标识， 与传输处理功能实体进行交互， 以使 UE加 入与标识对应的信息的组播频道并接收组播流。 以下进一步描述上述各个处理的细节。
(一） 步骤 S402 具体地， 该步骤的处理可以分为如下两个的步骤： 步骤 1 : IPTV服务控制功能实体向业务控制功能实体发送初始会话请 求， 其中， 该初始会话请求中携带有推荐的信息的标识以及 UE的唯一标识 的标识信息列表， 该标识信息列表指示向与该标识信息列表中一个或多个标 识对应的 UE发送上述初始会话请求， 请求 UE播放推荐的信息。 优选地， IPTV还可以在初始会话请求中携带有关推荐信息的描述信息， 比如， 描述该信息是属于新闻、 体育或访谈等节目。 在具体实施过程中， 为了减少推荐的盲目性， 造成对用户的频繁干扰， IPTV服务控制功能实体可以才艮据 UE选择内容的喜好，分析用户可能喜好哪 一类的节目， 从而将用户喜好的信息类型推荐给用户； 或者， IPTV服务控制 功能实体将目前点击率比较高的信息推荐给用户。 步骤 2: 业务控制功能实体根据该初始会话请求中携带的标识信息列 表， 向该标识信息列表中的各个标识对应的 UE转发上述初始会话请求。 在具体实施过程中， 上述信息可以为直播业务， 当上述信息为直播业务 时， 可以在上述初始会话请求中携带以下信息： 推送标示符信息，用于标识推荐的直播业务是用户需要直接观看的频道 的直播节目， 而不是需要存储的媒体文件或流， 也不是推送的点播节目； 直播节目内容的描述信息， 比如， 节目的片名、 主演演员、 大概情节等 内容； 节目的持续时间、 开始时间或结束时间等。 并且， 当推荐的信息为直播业务时， IPTV服务控制功能实体是在该直 播业务提供的直接节目播放前向 UE发送上述初始会话请求。
(二） 步骤 S404 业务控制功能实体将上述初始会话请求发送给需要推荐的 UE后，接收 到该初始会话请求的 UE 根据预先配置或用户的选择， 判断是否需要播放 IPTV服务控制功能实体推荐的上述信息，并将判断结果携带在上述初始会话 请求的响应消息中， 经由业务控制功能实体发送给 IPTV服务控制功能实体， IPTV服务控制功能实体根据该响应消息中携带的信息，判断 UE是否接受播 放上述信息。 当 UE确定接受播放上述信息时， UE根据接收到的初始会话请求中携 带的信息的标识， 向传输处理功能实体发出请求， 请求加入与该标识对应的 信息的组播频道， 通过与传输处理功能实体的交互， UE 加入该信息的组播 频道， 接收传输功能实体发送的组播流， 播放上述信息。 在具体实施过程中， 在 UE确定接受播放上述信息时， UE与 IPTV服 务控制功能实体之前需要进行信令交付， 预留传输信息内容流的资源， 该过 程有两种实现方式， 以下分别进行描述。 方式一： 由 UE主动发起请求 步骤 1 : UE向业务控制功能实体发送建议一个或者多个内容交付频道 的媒体提供请求； 步骤 2: 业务控制功能实体（如果下一代网络系统中釆用 IMS系统， 则 对应为 Core IMS中的 P-CSCF )和资源接纳控制子系统之间按照媒体提供请 求中的信息进行资源预留； 步骤 3: 业务控制功能实体 (或 P-CSCF )向 IPTV服务控制功能实体发 起建立一个或者多个内容交付频道的媒体提供请求； 步骤 4: IPTV服务控制功能实体向业务控制功能实体返回内容交付频 道的媒体提供应答； 步骤 5: 业务控制功能实体 （或 P-CSCF ) 和资源接纳控制子系统之间 更新资源预留； 在具体实施过程中该步骤可以执行也可以不执行， 可根据具 体需求确定。 步骤 6: 业务控制功能实体 （或 P-CSCF ) 向 UE返回内容交付频道的 媒体提供应答。 方式二： 由 IPTV服务控制功能实体发起 步骤 1 : IPTV服务控制功能实体向业务控制功能实体（ IMS中对应 Core
IMS中的 P-CSCF ) 发起建立一个或者多个内容交付频道的媒体提供请求； 步骤 2: 业务控制功能实体 （或 P-CSCF ) 和资源接纳控制子系统之间 进行资源预留； 步骤 3: 业务控制功能实体向 UE发起建立一个或者多个内容交付频道 的媒体提供请求； 步骤 4: UE向业务控制功能实体 (或 P-CSCF )返回内容交付频道的媒 体提供应答； 步骤 5: 业务控制功能实体 （或 P-CSCF ) 和资源接纳控制子系统之间 更新资源预留； 步骤 6: 业务控制功能实体 (或 P-CSCF )向 IPTV服务控制功能实体返 回内容交付频道的媒体提供应答。 UE在判断是否播放 IPTV服务控制功能实体推荐的信息后， 会将判断 结果携带在初始会话请求的响应消息中，经由业务控制功能实体发送给 IPTV 服务控制功能实体， 业务控制功能实体根据该响应消息中携带的标识 UE是 否播放上述信息的标识信息， 判断 UE是否播放上述信息， 在判断结果为是 的情况下， 业务控制功能实体与资源接纳控制子系统进行交互， 提交上述预 留的资源， 并向 IPTV服务控制功能实体转发上述响应消息； 在判断结果为 否的情况下， 业务控制功能实体与资源接纳控制子系统进行交互， 释放上述 预留的资源， 并向 IPTV服务控制功能实体转发该响应消息， IPTV服务控制 功能实体接收到该响应消息后， IPTV服务控制功能实体根据接收到的响应消 息确定 UE拒绝播放上述信息， 则结束流程， 不再进行后续的处理。 通过本发明实施例的上述方法， 可以实现网络侧主动向 UE推送播放信 息， 增加了运营商实现的内容业务。 为了进一步描述上述方法的具体实施方式，下面以推荐的信息为直播业
图 5为本实施例的具体实施过程的流程图， 如图 5所示， 该实施例的具 体实施过程主要包括以下步骤： 步骤 S502: IPTV服务控制功能实体主动发起针对直播业务包 （内容、 元数据等的组成的完整的音视频节目 ） 的直播业务初始化对话， 该对话的初 始化请求向业务控制功能实体请求直播业务。 其中， 该初始化请求携带有请求参数， 具体地， 该请求参数中可以包含 有： 推送标示符信息、 推荐的频道直播节目内容的描述信息、 节目的持续时 间等信息。 同时该请求参数中还包括 UE的唯一标识的标识信息列表， 该标 识信息列表中可以有一个或者多个 UE的标识。 并且， 为了标识出请求向 UE请求的直播业务， 需要在该初始化请求携 带该直播业务的标识。 步骤 S504: 业务控制功能实体才艮据上述初始化请求中携带的标识信息 列表， 将该标识信息列表中每个标识对应的 UE转发上述初始化请求； 步骤 S506: UE是否接收接受播放的频道直播业务流， 如果是， 则继续 执行步骤 S508 , 否则， 执行步骤 S510; 步骤 S508: IPTV服务控制功能实体和 UE之间进行一个或者多个内容 交付频道的建立的信令过程， 其中， 上述内容交付频道用于处理直播业务。 建立该信令过程的主要目的是进行资源预留、 分配带宽从而保障频道直播的 服务质量等。 步骤 S510: UE向业务控制功能实体转发会话初始化应答消息。 该应答 消息中携带有 UE是否接受播放上述频道的直播业务的标识信息。 如果步骤 S506中判断 UE拒绝马上播放的频道直播业务流， 则执行步骤 S514, 否贝' J , 执行步骤 S512。 步骤 S512:业务控制功能实体（在 IMS系统中对应 Core IMS的 P-CSCF ) 与资源接纳控制子系统交付提交步骤 S508 中预留的所有资源信息， 激活在 网络边缘的传输网络中的直播业务包， 从而使得 UE可以加入组播流中； 步骤 S514: 业务控制功能实体向 IPTV服务控制功能实体转发 UE发送 的会话初始化应答消息， 如果该应答消息中携带的标识信息指示 UE拒绝播 放上述频道的直播业务， 则结束流程， 否则执行步骤 S516; 步骤 S516: UE与传输网络中的传输处理功能实体进行交互， 加入组播 频道， 开始接受组播流， 进行内容控制和内容交付直播流的传输。 当在执行步骤 S508时，如果 UE获取网络参数发生在会话初始化之前， 即从业务选择功能触发该步骤， 则在 UE发起直播业务请求后执行实施例的 步骤 S508 , 图 6示出了在该情况下步骤 S508的具体实施过程， 如图 6所示 具体包括： 步骤 S602: UE向业务控制功能实体发送建议一个或者多个内容交付频 道的媒体提供请求； 步骤 S604: 业务控制功能实体（或 P-CSCF )和资源接纳控制子系统之 间按照媒体提供请求中的信息进行资源预留； 步骤 S606: 业务控制功能实体 （或 P-CSCF ) 向 IPTV月艮务控制功能实 体发起建立一个或者多个内容交付频道的媒体提供请求； 步骤 S608: IPTV服务控制功能实体向业务控制功能实体返回内容交付 频道的媒体提供应答； 步骤 S610: 业务控制功能实体（或 P-CSCF )和资源接纳控制子系统之 间更新资源预留； 在具体实施过程中该步骤可以执行也可以不执行， 可根据 具体需求确定； 步骤 S612: 业务控制功能实体 (或 P-CSCF ) 向 UE返回内容交付频道 的媒体提供应答。 如果 UE获取网络参数发生在会话初始化过程中， 则步骤 S508的具体 实施过程如图 7所示， 具体包括： 步骤 S702: IPTV服务控制功能实体向业务控制功能实体（ IMS中对应 Core IMS中的 P-CSCF ) 发起建立一个或者多个内容交付频道的媒体提供请 求； 步骤 S704: 业务控制功能实体（或 P-CSCF )和资源接纳控制子系统之 间进行资源预留； 步骤 S706: 业务控制功能实体向 UE发起建立一个或者多个内容交付 频道的媒体提供请求； 步骤 S708: UE向业务控制功能实体 (或 P-CSCF ) 返回内容交付频道 的媒体提供应答； 步骤 S710: 业务控制功能实体 (或 P-CSCF )和资源接纳控制子系统之 间更新资源预留； 步骤 S712: 业务控制功能实体 （或 P-CSCF ) 向 IPTV月艮务控制功能实 体返回内容交付频道的媒体提供应答。 如上所述， 借助本发明实施例提供的技术方案， 通过 IPTV服务控制功 能实体主动向 UE发送初始会话请求， 请求 UE播放某个信息， 向 UE推送 信息， 接收到上述请求的用户可以选择立即观看网络侧推荐的信息， 从而增 加了运营商实现的内容业务， 提高了 IPTV系统的竟争力； 并且， IPTV服务 控制功能实体可以按照 UE的选择或喜好有目的的向 UE推送信息， 避免了 推送的盲目性， 能提高用户体验。 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^^ 凡在本发明的 4青申和 原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的保护 范围之内。

Claims

权 利 要 求 书
1. 一种基于网际协议电视的信息推送方法，应用于包括网际协议电视 IPTV 服务控制功能实体、 业务控制功能实体和传输处理功能实体的下一代网 络系统， 其特征在于， 所述方法包括：
所述 IPTV服务控制功能实体经由所述业务控制功能实体向用户设 备发送播放信息的初始会话请求， 其中， 所述初始会话请求中携带有所 述信息的标识；
所述用户设备接收所述初始会话请求， 确定接受播放所述信息后， 才艮据所述初始会话请求中携带的所述标识， 与所述传输处理功能实体进 行交互， 以使所述用户设备加入所述标识对应的信息的组播频道并接收 组播流。
2. 根据权利要求 1所述的方法， 其特征在于， 所述 IPTV服务控制功能实 体经由业务控制功能实体向用户设备发送播放信息的初始会话请求包 括：
所述 IPTV服务控制功能实体向所述业务控制功能实体发送所述初 始会话请求， 其中， 所述初始会话请求中携带有包括用户设备的标识信 息列表的请求参数；
所述业务控制功能实体才艮据所述初始会话请求中携带的所述标识 信息列表， 将所述会话初始化请求转发给与所述标识信息列表中记录的 各个标识对应的一个或多个用户设备。
3. 根据权利要求 1所述的方法， 其特征在于， 所述用户设备与所述传输处 理功能实体进行交互之前， 所述方法还包括：
所述 IPTV服务功能实体与所述用户设备进行所述信息的频道的建 立， 预留所述用户设备播放所述信息所需的资源。
4. 根据权利要求 3所述的方法， 其特征在于， 在预留所述用户设备播放所 述信息所需的资源之后， 所述方法还包括：
所述业务控制功能实体接收来自用户设备的初始会话应答消息，其 中， 所述初始会话应答消息中携带有用于标识所述用户设备是否播放所 述信息的标识信息； 所述业务控制功能实体根据所述初始会话应答消息中携带的所述 标识信息判断所述用户设备是否接受播放所述信息， 在判断结果为是的 情况下， 提交预留的所述资源， 并将所述初始会话应答消息转发给所述 IPTV服务控制功能实体； 在判断结果为否的情况下， 将所述初始会话应 答消息转发给 IPTV服务控制功能实体， 结束流程。
5. 才艮据权利要求 1至 4中任一项所述的方法， 其特征在于， 所述信息为直 播业务。
6. 根据权利要求 5所述的方法， 其特征在于， 如果所述下一代网络中釆用 多媒体子系统， 则所述业务控制功能实体为核心多媒体子系统。
7. 一种基于 IPTV的信息推送系统， 包括： IPTV服务控制功能实体、 业务 控制功能实体和传输处理功能实体， 其特征在于，
所述 IPTV 艮务控制功能实体， 用于经由所述业务控制功能实体向 用户设备发送播放信息的初始会话请求；
所述业务控制功能实体， 用于接收来自所述 IPTV服务控制功能实 体的所述初始会话请求， 并才艮据所述初始会话请求中携带的信息， 将所 述初始会话请求转发给所述用户设备；
所述传输功能实体， 用于与所述用户设备进行交互， 并向所述用户 设备发送组播流。
8. 根据权利要求 7所述的系统， 其特征在于， 所述业务控制功能实体为核 心多媒体子系统。
9. 根据权利要求 7或 8所述的系统， 其特征在于， 所述信息为直播业务。
10. 一种 IPTV服务控制功能实体， 其特征在于， 包括：
获取模块， 用于获取向用户推荐的信息的标识； 发送模块，用于经业务控制功能实体向所述用户设备发送携带有所 述标只的初始会话请求， 其中， 所述初始会话请求用于请求所述用户设 备播放与所述标识对应的信息。
11. 根据权利要求 10所述的 IPTV服务控制功能实体，其特征在于，所述 IPTV 服务控制功能实体还包括：
预留模块， 用于与所述用户设备进行所述信息的频道的建立， 预留 所述用户设备播放所述信息所需的资源。
12. 根据权利要求 10或 11所述的 IPTV服务控制功能实体， 其特征在于， 所述信息为直播业务。
PCT/CN2008/073217 2008-08-28 2008-11-27 基于网际协议电视的信息推送方法、装置及系统 Ceased WO2010022570A1 (zh)

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