CN101155048A

CN101155048A - Method and system for implementing network television service

Info

Publication number: CN101155048A
Application number: CNA2006101394824A
Authority: CN
Inventors: 李金成; 严军; 吴向阳
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2006-09-25
Filing date: 2006-09-25
Publication date: 2008-04-02
Anticipated expiration: 2026-09-25
Also published as: CN100525195C; WO2008037219A1

Abstract

The invention discloses a method of implementing IPTV service in DVB-H network. A terminal obtains electronic program EPG and/or control information by interactive network. A service application entity SA transfers the media flow to the terminal. The terminal plays the media flow corresponding with the program in EPG using the said control information. The invention also discloses a system of implementing IPTV service in DVB-H network. In the DVB-H network, the associated information with IPTV service such as EPG is alternated by interactive channel, therefore the IPTV service is provided more flexibly and the service taste of user is increased.

Description

A kind of method and system that realize network TV business

Technical field

The present invention relates to digital video broadcasting (DVB-H) networking technology area, particularly a kind of method and system that realize that in the DVB-H network Web TV (IPTV) is professional at handheld device.

Background technology

Background technology of the present invention relates to IPTV business, next generation network (NGN), based on IP data broadcasting (IPDC over DVB-H), condition receiving system (the Conditional Access of DVB-H, CA) and the 2-of Motion Picture Experts Group (MPEG) transport stream technology such as (TS), introduce these technology below respectively.

IPTV is the live television service on the IP network that grew up in recent years, and this business is incorporated into traditional television services in the IP network, has expanded the consumer group of television services greatly, has caused the very big attention of operator.In traditional live television service, subscriber equipment carries out the adding of channel by transmission Internet Group Management Protocol (IGMP) message and leaves: add (Join) message request by IGMP and watch certain television channel, leave (Leave) message by IGMP and stop to watch certain channel.

NGN is based on the pattern of fusion network of group technology, based on packet switching, and the framework that adopts carrying to separate with control, it has inherited all business of original PSTN fixed network, has also enough inherited mobile network's professional ability simultaneously.NGN combines the advantage of fixed-line telephone network, mobile telephone network and IP network, makes analog subscriber, digital subscriber, mobile subscriber, Asymmetrical Digital Subscriber Line (ADSL) user, Integrated Service Digital Network user, IP narrowband network user, IP broadband network user or even the user who inserts via satellite to intercom mutually as a member among the NGN.

The framework of IPDC over DVB-H network as shown in Figure 1.With reference to Fig. 1, comprise following entity in this network architecture: content source (Content Creation) is used to provide content metadata and media content; Service application entity (Service Application, SA) be in the IPDC system and the entity of content source interface, be responsible for the collection of content metadata, and be transmitted to service management entity (ServiceManagement, SM) entity, and providing of responsible media content and providing of service logic; SM is responsible for generation, the distribution of electronic program list (EPG), also is responsible for controlled function such as authentication, charging; Radio network (Broadcast Network) is the radio network among the DVB-H; The Internet (InteractiveNetwork) is as universal mobile telecommunications system GSM network, third generation 3G network etc.; Terminal (Terminal) is used for request and consumption streaming media service.IPDC over DVB-H framework also comprises IP package implementation (the IP Encapsulator for drawing among Fig. 1, IPE), IPE is positioned at the border of IP network and DVB-H network, it is the communication center of IP network and DVB-H network, be responsible for obtaining media content, and carry out transport stream (TS) encapsulation, and be transmitted to the user.

Each interface is as follows among Fig. 1: BroadCast MultiCast Service fusion interface 1 (CBMS-1) is used for Program Specific Information/business information (PSI/SI) information and issues; CBMS-2 is used for Media Stream and issues; CBMS-3 is used for to put the form distributing electronic programme EPG of multiple spot; CBMS-4 is used for the form distribution EPG with point-to-point; CBMS-5 is an exchange channels, and it is mutual to be used for carrying out between terminal and SA short message, as short message service (SMS), Multimedia Message (MMS); CBMS-6 is used for notification broadcast Network bandwidth, and PSI/SI desired parameters such as professional number; CBMS-7 is used for SA notice SM content metadata information.

In traditional television services, by the CA system Media Stream is protected, the CA system uses the multilayer key protection mechanism, as shown in Figure 2.With reference to Fig. 2, (Control Word CW) carries out scrambling to Media Stream by control word; (Service Key SK) protects control word, and (Entitle Control Message ECM) sends terminal to by Entitlement Control Message with business cipher key; (Personal Distribution Key PDK) protects business cipher key, and (EntitleManage Message EMM) sends terminal to by Entitlement Management Message with individual distributed key.

MPEG2-TS abbreviates TS as, is in DVB, be multiplexed into together the unified data mode that sends terminal to such as various Media Streams such as audio frequency, video and some control informations and business information such as PSI/SI information etc.

In IPDC over DVB-H network, the DVB-H network is a radio network, and exchange channels is optional.So main consideration utilizes broadcast channel that providing of IPTV business is provided in the IPDC over DVB-H framework, not only Media Stream issues by broadcast channel, and PSI/SI information, EPG information, comprises that the CA information of EMM information and ECM information also issues by broadcast channel.

In the prior art, the business information that IPTV is relevant is carried out the TS encapsulation by IPE and is issued by the DVB-H broadcast channel.But along with the evolution of network, the encapsulation point of TS and packaged type all may change, and only carry out the optimal selection of TS encapsulation under may not all network environment by IPE.In addition, user's business cipher key is included in the EMM message, is handed down to the user by broadcast channel.Because EMM message is protected by PDK, and each user's PDK has nothing in common with each other,, lack flexibility so EMM message need travel through poll and be broadcast to each user.The number of users of IPTV system is very huge, and this polling mode produces very big delay, even can't watch program in a period of time after causing the user to start shooting.

In addition, prior art is carried out issuing of EPG by broadcast channel, and such EPG is the same to all users, and the EPG of customization can't be provided, and greatly reduces the flexibility of IPTV business.

Summary of the invention

In view of this, the present invention proposes a kind of method that in the DVB-H network, realizes the IPTV business, in order to improve the flexibility of IPTV business.Another object of the present invention is, proposes a kind of system that realizes the IPTV business in the DVB-H network.

According to above-mentioned purpose, the invention provides a kind of method that in the DVB-H network, realizes the IPTV business, this method may further comprise the steps:

Terminal is obtained EPG and/or control information by the Internet;

SA sends Media Stream to terminal;

Terminal utilizes described control information to play the Media Stream of the program correspondence among the described EPG.

Described terminal comprises by the step that the Internet obtains EPG and/or control information:

SM sends to terminal by exchange channels with EPG and control information; Perhaps,

SM sends to IPE by exchange channels with EPG and control information, and IPE sends to terminal by broadcast channel with EPG and control information; Perhaps,

SM sends to terminal by exchange channels with EPG, and the interface of SM by itself and IPE sends to IPE with control information, and IPE sends to terminal by broadcast channel with control information; Perhaps,

SM sends to terminal by exchange channels with EPG, and SM sends to IPE by exchange channels with control information, and IPE sends to terminal by broadcast channel with control information; Perhaps,

SM sends to IPE by the interface of itself and IPE with EPG, and IPE sends to terminal by broadcast channel with EPG, and SM sends to terminal by exchange channels with control information; Perhaps,

SM sends to IPE by the interface of itself and IPE with EPG, and IPE sends to terminal by broadcast channel with EPG, and SM sends to IPE by exchange channels with control information, and IPE sends to terminal by broadcast channel with control information; Perhaps,

SM sends to IPE by exchange channels with EPG, and IPE sends to terminal by broadcast channel with EPG, and SM sends to terminal by exchange channels with control information; Perhaps,

SM sends to IPE by exchange channels with EPG, and IPE sends to terminal by broadcast channel with EPG, and the interface of SM by itself and IPE sends to IPE with control information, and IPE sends to terminal by broadcast channel with control information.

This method further comprises:

SM sends to terminal by exchange channels with media description information; Perhaps,

SM sends to IPE by the interface of itself and IPE with media description information, and IPE sends to terminal by broadcast channel with media description information; Perhaps,

SM sends to IPE by exchange channels with media description information, and IPE sends to terminal by broadcast channel with media description information; Perhaps,

SM sends to SA by the interface of itself and SA with media description information, and SA sends to terminal by broadcast channel with media description information.

Described SA comprises the step that Media Stream sends terminal to: SA sends to IPE with Media Stream, and IPE carries out sending terminal to after the transport stream TS encapsulation to medium.

Described SA comprises the step that Media Stream sends terminal to: SA carries out Media Stream to send to IPE after the TS encapsulation, and IPE sends this Media Stream to terminal.

Described SA comprises the step that Media Stream sends terminal to: SA adopts the IP transmission means to send Media Stream to terminal.

Described control information comprises business cipher key and/or media description information.

Described media description information is: PSI/SI, perhaps IP address/port number and SDP sign.

Described terminal further comprises before obtaining EPG by the Internet: terminal obtains the address of EPG, and asks EPG according to this address to SM.

The step that described terminal obtains the EPG address comprises: in the bootstrapping process that adopts traditional DVB-H, perhaps by the attaching process of the Internet, perhaps network is notified terminal behind the endpoint registration, obtains the address of EPG.

SA comprises before sending Media Stream to terminal:

Terminal is by the program among the described EPG of Internet request;

The Internet obtains the positional information of the radio network at user place from radio network, and is carrying this positional information in the message of SM request program;

SM is according to the IPE at described positional information consumer positioning place, and notifies this IPE to ask program to SA.

This method further comprises:

SM transmits the configuration information of the identification information comprise radio network to radio network, and radio network sends the identification information of described radio network to terminal;

Terminal is carried out service subscribing/request or to the positional information of SA/SM reporting terminal by the Internet to SA, and carries the identification information of described radio network in message;

SA and/or SM carry out business control according to the identification information of described radio network.

The identification information of described radio network comprises the sign of IPE in DVB network identity and/or the network.

This method comprises that further SM carries out the step of professional control to radio network.

The present invention also provides a kind of system that realizes the IPTV business in the DVB-H network, and this system comprises:

Terminal is used to obtain EPG, receives the Media Stream of being transmitted by radio network, and the Media Stream of playing program correspondence among the described EPG;

The Internet is used for transmitting described EPG and/or control information to terminal.

Radio network is used for transmitting Media Stream to terminal, and/or EPG, and/or control information

SA is used for sending Media Stream to terminal;

SM is used for providing EPG and control information to terminal.

This system further comprises: the CBMS-4 interface between SM and terminal and through the Internet, is used for transmitting EPG to terminal.

Described CBMS-4 interface is further used for transmitting control messages.

This system further comprises IPE, and the Media Stream that is used for not carrying out the TS encapsulation directly is transmitted to terminal.

This system further comprises: the CBMS-6 interface between SM and radio network, is used for transmitting to the configuration information of radio network and/or to the configuration information of IPE to radio network.

This system further comprises: the CBMS-4 interface between SM and terminal and through the Internet, is used to transmit the customer service control information.

Between the Internet and radio network, there is the X-4 interface, is used between the Internet and radio network, finishing the transmission of IPTV business information, and be used for mutual broadcast network information and Internet information between the Internet and radio network.

When this system was arranged in NGN, this system further comprised entity of carrying control function, was used to control the mutual of described broadcast network information and Internet information.

Described carrying controlled entity is resource grant control subsystem RACS in Tispan, is resource grant controlled function RACF in ITU.

This system further comprises: the CBMS-1 interface, be located between radio network and the terminal, and be used for transmitting the sign of radio network to terminal.

Described CBMS-1 interface is further used for transmitting EPG and/or Entitlement Management Message EMM.

This system further comprises: the CBMS-3 interface between radio network and terminal, is used to transmit EPG.

Described SA is further used for Media Stream is carried out the TS encapsulation.

This system further comprises IPE, is used for Media Stream is carried out the TS encapsulation, and is transmitted to terminal.

This system further comprises IPE, is used for providing to terminal the identification information of radio network; Described terminal is being carried out service subscribing/request or during to the positional information of SA/SM reporting terminal, is being carried the identification information of described radio network in message to SA by the Internet; Described SA and/or SM carry out business control according to the identification information of described radio network.

From such scheme, as can be seen,,, thereby can improve user's business experience so that providing of IPTV business is more flexible by IPTV service related informations such as the mutual EPG of exchange channels owing to the present invention proposes in the DVB-H network.

Description of drawings

Fig. 1 is the configuration diagram of IPDC over DVB-H in the prior art;

Fig. 2 is the schematic diagram of the multilayer key mechanism of CA system;

Fig. 3 is the system architecture schematic diagram behind the introducing X-4 interface in the embodiment of the invention;

System architecture schematic diagram when Fig. 4 carries out the TS encapsulation for SA in the embodiment of the invention;

System architecture schematic diagram when Fig. 5 no longer carries out the TS encapsulation for adopting direct IP load mode and radio network in the embodiment of the invention;

Fig. 6 is the schematic flow sheet of first embodiment of the invention;

Fig. 7 is the schematic flow sheet of second embodiment of the invention;

Fig. 8 is the schematic flow sheet of third embodiment of the invention;

Fig. 9 is the schematic flow sheet of fourth embodiment of the invention;

Figure 10 is the schematic flow sheet of fifth embodiment of the invention.

Embodiment

For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in more detail by the following examples.

Along with the development of network and technology, terminal supports exchange channels very general, and such as for 3G terminal and IMS terminal, exchange channels has become essential.Therefore,, the present invention proposes the relevant information that in the DVB-H network, transmits the IPTV business, and new system and the new method that realizes the IPTV business in the DVB-H network is provided on this basis by exchange channels at above-mentioned technical problem of the prior art.

In the DVB-H network, utilize exchange channels to transmit the IPTV service related information, comprise EPG information, PSI/SI information, business control information (as business cipher key information).

(1) utilize the CBMS-4 interface to transmit the IPTV business information.

By the CBMS-4 interface, SM transmits EPG information separately to each user by the mode of point-to-point.In this kind mode, SM can generate the EPG of customization according to specific CAMEL-Subscription-Information of user and configuration information for the user.

Simultaneously, can pass through this interface, the user carries out the subscription of IPTV business, and SM can give the user as the business cipher key of certain channel by the relevant control information of exchange channels issuing service.Perhaps, the user asks the IPTV business information dynamically by this interface in the process of watching the IPTV business, and as business cipher key, and SM dynamically issues relevant information to the user.

Can also transmit PSI/SI information by this interface in addition and give terminal.

(2) utilize the X-4 interactive interfacing that increases newly, transmit the IPTV business information.

As shown in Figure 3 be the system architecture diagram of introducing behind the X-4 interface.With reference to Fig. 3, described X-4 interface is between the radio network and the Internet.

In traditional DVB-H network, not mutual between the radio network and the Internet.The scheme 1 of the embodiment of the invention has increased the X-4 interface between the radio network and the Internet, this X-4 interface is finished:

A) IPTV business information, the issuing of bearer network configuration information.

In traditional DVB-H network, SM issues the IPTV business information by the CBMS-6 interface, as information such as programm name, playing programs times; And the configuration information of DVB-H network, as service bandwidth.Professional numbers etc. are given radio network.After introducing the X-4 interface, can carry out issuing of relevant information by X-3, X-4 interface.

B) user's beared information is mutual.

Because the user both had been linked into radio network, be linked into the Internet again simultaneously, by the X-4 interface, can carry out the mutual of radio network and Internet information, be which IPE the user is arranged on and the positional information of the Internet as the user at radio network.

In the NGN network, the radio network and the Internet are controlled by entity of carrying control function all, above-mentioned IP business information and user's beared information alternately can by the carrying controlled entity carry out alternately.

Above-mentioned carrying controlled entity is resource grant control subsystem RACS/ (Network Attachment Subsystem NASS) in Tispan, carries out for RACF/NACF in ITU.

(3) strengthen the CBMS-1 interface.Carry the identification information of radio network by broadcast channel and give terminal, then terminal, can be carried the identification information of radio network and give network, thereby optimize the management of IPTV business when mutual by the Internet.

The identification information of radio network described here comprises: sign of IPE etc. in DVB network identity, the network.

Radio network can carry the identification information of radio network to terminal by the SI information among the TS.Terminal can be carried the identification information of radio network and give service application entity when carry out service subscribing/request.And terminal can directly be reported the identification information of radio network to network, as being responsible for the entities/servers of location management in the network.

(4) variation of CBMS-1 interface.

In traditional DVB-H network, this interface transmits PSI/SI, EPG, EMM, medium stream information by TS stream.

If EPG, EMM information transmit by exchange channels, then this interface can select to continue to transmit EPG, EMM information; Also can no longer transmit EPG, EMM information, and only transmit by exchange channels.

(5) variation of CBMS-3 interface.

In traditional DVB-H network, transmit EPG information by this interface.If EPG information transmits by exchange channels, then this interface can be selected to continue to transmit EPG information, also can no longer transmit EPG information, and only transmit by exchange channels.

According to the different load modes of above-mentioned information, there is following typical scheme in the difference in conjunction with entity that carries out the TS encapsulation in the network and encapsulation packaged type:

Scheme 1: carry out the TS encapsulation by IPE;

The transmission of A, PSI/SI information has three kinds of modes: a) SM sends terminal to by exchange channels (CBMS-4); B) method of employing prior art, SM sends IPE to by the direct interface (CBMS-6) with IPE, and IPE sends terminal to by broadcast channel (CBMS-1) then; C) method that at first adopts the embodiment of the invention to propose, (X-3 X-4) sends IPE to, adopts existing method then, sends terminal by IPE to by broadcast channel (CBMS-1) by exchange channels by SM;

The transmission of B, EPG information and control information is identical with the transmission of PSI/SI information among the B.

Scheme 2:SA carries out the TS encapsulation.

With reference to Fig. 4, Comparatively speaking scheme 2 is distinguished not quite with scheme 1, but variation has taken place the TS encapsulation point, so framework is had following influence:

(1) the CBMS-8 interface of increase between SM and SA, SM transmits EPG by the CBMS-8 interface and gives SA, so that SA carries out the encapsulation of TS.Certainly, SM also can utilize existing C BMS-7 port to transmit.

What (2) the CBMS-2 interface transmitted is TS stream, comprises PSI/SI information and each Media Stream etc.

(3) the needed PSI/SI information of SA sends SA to by CBMS-7 interface or CBMS-8 interface.

(4),, then keep this three interfaces if IPE also carries out the TS encapsulation for CBMS-6 interface, CBMS-3 interface, CBMS-1 interface; If IPE does not carry out the TS encapsulation, then can delete this three interfaces.

(5) transmission of PSI/SI information is similar to the load mode in the scheme 1, repeats no more here.

Therefore, scheme 2 can be summarized as follows:

A, carry out the encapsulation of TS by SA;

The transmission of B, PSI/SI information also has dual mode: a) SM sends terminal to by exchange channels (CBMS-4); B) SM sends SA to by the direct interface (CBMS-7 or CBMS-8) with SA, and SA sends terminal to by broadcast channel (CBMS-2) then, wherein no longer by exchange channels, seems simple than scheme 1;

The transmission of C .EPG information and control information is identical with the transmission of PSI/SI information among the B.

In the such scheme 2,, can carry out the encapsulation of TS by MRF specific to the IMS network.

In the

such scheme

1 and 2, media description information is used to identify each medium composition, and the attribute of each medium composition and the relation between each medium composition are described.Media description information can transmit by broadcast channel and/or exchange channels.These information can be by the form tissue of PSI/SI, also can be by other signaling form tissues: distinguish different medium compositions as adopting the IP address/port number, identify each medium composition attribute and relation each other thereof by Session Description Protocol (SDP).

Scheme 3: in DVB over DVB-H network, SA adopts direct IP load mode, and radio network no longer carries out the TS encapsulation.In scheme 3, media description information can adopt the IP address/port number to distinguish different medium compositions, identifies each medium composition attribute and relation each other thereof by SDP.

In traditional broadcast television service, Media Stream adopts the TS mode to send terminal to, and SA or the IPE that is positioned at radio network are responsible for the encapsulation of TS.Along with the evolution of technology, Media Stream is gradually to the evolution of direct IP packaged type, this moment IPE can be directly the media stream bearing of receiving from SA on the DVB passage, need not carry out the encapsulation of TS.

The system architecture diagram of scheme 3 as shown in Figure 5, following variation has also taken place in the function of each entity, interface:

(1) working method of IPE taken place variation: IPE directly the media stream bearing of receiving from SA on the DVB passage, do not carry out the encapsulation of TS.

(2) EPG no longer transmits by broadcast channel, and EPG utilizes the CBMS-4 interface to transmit by exchange channels, therefore can delete the CBMS-3 interface.

(3) because SA adopts direct IP load mode, IPE does not carry out the TS encapsulation yet, thus need not carry out PSI/SI information, so scheme 3 can be deleted the CBMS-1 interface.But exchange channels need identify each medium composition by signaling, and the attribute of each medium composition and the relation between each medium composition are described.As adopt the IP address/port number to distinguish different medium compositions, identify relation between each medium composition by SDP.

(4) variation of CBMS-6 interface: SM sends in the information of radio network, no longer comprises the information that encapsulates PSI/SI, but comprises radio network and the configuration information that is positioned at the entity IPE of radio network.

(5) customer service control information such as business cipher key information no longer transmit by the CBMS-1 interface, can send terminal to by SM by the CBMS-4 interface, perhaps send terminal by the CBMS-5 interface to by SA.

To sum up, scheme 3 may be summarized to be:

A, adopt direct IP load mode media stream by SA, transparent to IPE;

B, each medium composition of needs sign illustrate the attribute of each medium composition and the relation between each medium composition.As adopting the IP address/port number to distinguish different medium compositions, identify each medium composition attribute and relation each other thereof by SDP.

C EPG information then transmits by exchange channels.

Below with reference to scheme 1, scheme 2 and scheme 3 are described embodiments of the invention as mentioned above.

First embodiment: the user obtains EPG, carries out service subscribing and obtains business control information by exchange channels.

Fig. 6 is the schematic flow sheet of first embodiment of the invention.With reference to Fig. 6, the flow process of first embodiment of the invention may further comprise the steps:

Step 101, terminal obtains the address of EPG.Also can adopt the bootstrapping process of traditional DVB-H in this step,, obtain the address of EPG perhaps by the attaching process of the Internet.

Step 102, terminal are according to the address of acquisition EPG, to SM request EPG.

Step 103, SM returns EPG and gives terminal.

Step 104, the user browses EPG information, selects to subscribe to certain program.

Step 105, terminal send the program ordering request to SM.

Step 106, SM returns program ordering response, and issuing service control information simultaneously is as the business cipher key of program etc.

It should be noted that above-mentioned steps 105 and step 106 can adopt sip subscribe (Subscribe)/notice (Notify) message when service management face adopts IMS to control.

Second embodiment: the Internet and radio network carry out determining customer position information alternately, the carrying out of auxiliary IPTV business.

Fig. 7 is the schematic flow sheet of second embodiment of the invention.With reference to Fig. 7, the flow process of second embodiment of the invention may further comprise the steps:

Step 201, the user asks certain program by the Internet.When adopting IMS to carry out business control, this request can be adopted SIP request (Invite) message.

Step 202, the Internet and radio network are mutual, obtain the positional information of the radio network at user place.

In the NGN network, can being undertaken by RACS/NACS alternately of above-mentioned information.

Step 203, the user asks program to SM, carries the positional information of radio network

Step 204, SM finds the program that this IPE does not also have the user and asked, and by the positional information location IPE of radio network, and notifies this IPE to ask program to SA.

Step 205, the IPE at user place asks program to SA.

Step 206, SA issues the program of request and gives IPE.

Step 207, radio network notice SM, the success of request program.

Step 208, SM is by the Internet, and notice terminal request program is successful.

Step 209, IPE transmits program and gives terminal.

The 3rd embodiment: carry the identification information of radio network by broadcast channel, the user carries this information when carrying out service request by the Internet, thereby optimizes the management of IPTV business

Fig. 8 is the schematic flow sheet of third embodiment of the invention.With reference to Fig. 8, the flow process of third embodiment of the invention may further comprise the steps:

Step 301, SM issues configuration information and gives radio network.Described configuration information may comprise the identification information such as the DVB network identity of radio network, and the sign of the IPE in the network.

Step 302, radio network is preserved configuration information.

Step 303, radio network are carried the identification information such as the DVB network identity of radio network by SI information, and the sign of the IPE that TS is encapsulated etc.

Step 304, terminal is carried out service subscribing/request to SA, perhaps to the positional information of the direct reporting terminal of SA/SM.Carry the identification information of above-mentioned radio network in the message.

Step 305, the Internet is transmitted message and is given SA/SM.

Step 306, SA/SM carries out business control according to the identification information of the radio network in the message.For example, SA issues the radio network that medium flow to appointment.

The 4th embodiment: SA carries out the encapsulation of TS, and the user watches the IPTV business.

Fig. 9 is the schematic flow sheet of fourth embodiment of the invention.With reference to Fig. 9, the flow process of fourth embodiment of the invention may further comprise the steps:

Step 401, SM carries out business configuration, for example information such as service bandwidth, professional number.

Step 402, SM transmits EPG and gives SA.

If EPG sends terminal to by exchange channels, then can not carry out this step, and execution in step 406.

Step 403, SA carries out the TS encapsulation to Media Stream.

Step 404, the SA media stream is given radio network.

Step 405, radio network is transmitted Media Stream and is given terminal.

If radio network carries out multiplexing between many TS, then need carry out the multiplexing of a plurality of TS this moment.Otherwise radio network is just transmitted single TS.

Step 406, the user obtains EPG by the Internet.

If EPG issues by broadcast channel, then can not carry out this step.

Step 407, the user browses program and selects to watch certain program.

Step 408, the user obtains business control information from SA or SM, as business cipher key by the Internet.

Step 409, the user watches the program of receiving.

The 5th embodiment: when adopting direct IP load mode, the user enjoys the IPTV business.

Figure 10 is the schematic flow sheet of fifth embodiment of the invention.With reference to Figure 10, the flow process of fifth embodiment of the invention may further comprise the steps:

Step 501, SM carries out business configuration, may comprise information such as service bandwidth, professional number.

Step 502, the SA media stream is given radio network.Whether wherein the Media Stream of SA can adopt UDP or RTP carrying, and can further select to encapsulate with TS.

Step 503, radio network is transmitted Media Stream and is given terminal.Need not to carry out the TS encapsulation this moment.

Step 504, user terminal obtains EPG by the Internet.

Step 505, the user browses program and selects to watch certain program.

Step 506, the user obtains business control information from SA or SM, as business cipher key by the Internet.

Step 507, the user watches the program of receiving.

The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. method that realizes the network TV IPTV business at the digital video broadcasting DVB-H network of handheld device is characterized in that this method may further comprise the steps:

Terminal is obtained electronic program EPG and/or control information by the Internet;

Service application entity SA sends Media Stream to terminal;

2. method according to claim 1 is characterized in that, described terminal comprises by the step that the Internet obtains EPG and/or control information:

SM sends to package implementation IPE by exchange channels with EPG and control information, and IPE sends to terminal by broadcast channel with EPG and control information; Perhaps,

3. method according to claim 1 is characterized in that, this method further comprises:

4. according to claim 1,2 or 3 described methods, it is characterized in that described SA comprises the step that Media Stream sends terminal to: SA sends to IPE with Media Stream, IPE carries out sending terminal to after the transport stream TS encapsulation to medium.

5. according to claim 1,2 or 3 described methods, it is characterized in that described SA comprises the step that Media Stream sends terminal to: SA carries out Media Stream to send to IPE after the TS encapsulation, and IPE sends this Media Stream to terminal.

6. according to claim 1,2 or 3 described methods, it is characterized in that described SA comprises the step that Media Stream sends terminal to: SA adopts the IP transmission means to send Media Stream to terminal.

7. method according to claim 1 is characterized in that described control information comprises business cipher key and/or media description information.

8. according to claim 3 or 7 described methods, it is characterized in that described media description information is: Program Specific Information/business information PSI/SI, perhaps IP address/port number and Session Description Protocol SDP sign.

9. method according to claim 1 is characterized in that, described terminal further comprises before obtaining EPG by the Internet: terminal obtains the address of EPG, and asks EPG according to this address to SM.

10. method according to claim 9, it is characterized in that the step that described terminal obtains the EPG address comprises: in the bootstrapping process that adopts traditional DVB-H, the perhaps attaching process by the Internet, perhaps network is notified terminal behind the endpoint registration, obtains the address of EPG.

11. method according to claim 1 is characterized in that, SA comprises before sending Media Stream to terminal:

Terminal is by the program among the described EPG of Internet request;

SM is according to the IPE at described positional information consumer positioning place, and notifies this IPE to service application entity SA request program.

12. method according to claim 1 is characterized in that, this method further comprises:

13. method according to claim 11 is characterized in that, the identification information of described radio network comprises the sign of IPE in DVB network identity and/or the network.

14. method according to claim 1 is characterized in that, this method comprises that further SM carries out the step of professional control to radio network.

15. a system that realizes the IPTV business in the DVB-H network is characterized in that this system comprises:

The Internet is used for transmitting described EPG and/or control information to terminal;

Radio network is used for transmitting Media Stream to terminal, and/or EPG, and/or control information;

SA is used for sending Media Stream to terminal;

SM is used for providing EPG and control information to terminal.

16. system according to claim 15 is characterized in that, this system further comprises:

The CBMS-4 interface between SM and terminal and through the Internet, is used for transmitting EPG to terminal.

17. system according to claim 16 is characterized in that, described CBMS-4 interface is further used for transmitting control messages.

18. system according to claim 15 is characterized in that, this system further comprises IPE, and the Media Stream that is used for not carrying out the TS encapsulation directly is transmitted to terminal.

19. system according to claim 15 is characterized in that, this system further comprises:

The CBMS-6 interface between SM and radio network, is used for transmitting to the configuration information of radio network and/or to the configuration information of IPE to radio network.

20. system according to claim 15 is characterized in that, this system further comprises:

The CBMS-4 interface between SM and terminal and through the Internet, is used to transmit the customer service control information.

21. system according to claim 15, it is characterized in that, between the Internet and radio network, there is the X-4 interface, be used between the Internet and radio network, finishing the transmission of IPTV business information, and be used for mutual broadcast network information and Internet information between the Internet and radio network.

22. system according to claim 21 is characterized in that, when this system was arranged in next generation network NGN, this system further comprised entity of carrying control function, was used to control the mutual of described broadcast network information and Internet information.

23. system according to claim 22 is characterized in that, described carrying controlled entity is resource grant control subsystem RACS in Tispan, is resource grant controlled function RACF in ITU.

24. system according to claim 21 is characterized in that, this system further comprises:

The CBMS-1 interface is located between radio network and the terminal, is used for transmitting to terminal the sign of radio network.

25. system according to claim 24 is characterized in that, described CBMS-1 interface is further used for transmitting EPG and/or Entitlement Management Message EMM.

26. system according to claim 21 is characterized in that, this system further comprises:

The CBMS-3 interface between radio network and terminal, is used to transmit EPG.

27., it is characterized in that described SA is further used for Media Stream is carried out the TS encapsulation according to claim 15 or 21 described systems.

28. system according to claim 21 is characterized in that, this system further comprises IPE, is used for Media Stream is carried out the TS encapsulation, and is transmitted to terminal.

29. according to claim 15 or 21 described systems, it is characterized in that this system further comprises IPE, be used for providing the identification information of radio network to terminal;

Described terminal is being carried out service subscribing/request or during to the positional information of SA/SM reporting terminal, is being carried the identification information of described radio network in message to SA by the Internet;

Described SA and/or SM carry out business control according to the identification information of described radio network.