CN101631229B - Network individual recording method, device and system - Google Patents

Abstract

Embodiments of the present invention provide a network personal recording processing method, device and system. The method includes receiving a recording request message sent by a user, the recording request message including the program identifier of the target program and/or the start and end time of playing the target program; If the status information is received, send a recording instruction message to the media function module to instruct the media function module to perform the program according to the program identification of the target program included in the recording instruction message and/or the start and end time of the target program playing recording. The network personal recording processing method and equipment provided in this embodiment not only meet the user's recording request, but also avoid repeated recording through the recording status of the program, effectively saving storage resources on the network side, and through the mapping of virtual space and physical space Realize the management of user network space and improve business service quality.

Description

Network personal recording processing method, device and system

technical field

The embodiments of the present invention relate to the technical field of IPTV, and in particular to a method, device and system for network personal recording processing.

Background technique

With the evolution of the Internet into the broadband era, Internet technology and its applications are increasingly integrated into the life, entertainment and work of domestic consumers. The broad prospects of broadband Internet applications are leading the global telecommunications industry to increase Internet applications. Content research and development, cultivation and market promotion. The business model based on "Internet + broadband access + video and multimedia content" has become the basic business model recognized by the whole industry and the new telecom era. The Internet Protocol Television (IPTV for short) that emerged under this background is a broadband value-added service based on broadband, with TV plus set-top box as the main terminal, and providing interactive multimedia services for users. The IPTV service includes audio VOD, karaoke, distance education and interactive advertising are value-added application services suitable for development under the "TV + set-top box" model.

Among them, the Network Personal Video Recorder (hereinafter referred to as: NPVR) service is one of the enhanced IPTV services. NPVR is built on the Media Delivery Network (hereinafter referred to as: MDN) platform, allowing users to view programs they are interested in. The content is recorded and replayed, and the recorded content is stored on the network side. The emergence of NPVR services can not only enhance the personalized features of IPTV services, but also provide strong support for the development of other interactive services.

In the process of realizing the present invention, the inventor found that there are at least the following problems in the prior art: in the prior art, only in the telecommunications and Internet converged services and advanced network protocols (ETSI Technical Committee Telecommunications and Internet converged Services and Protocols for Adv

Contents of the invention

Embodiments of the present invention provide a network personal recording processing method, device and system, and provide a solution for realizing NPVR services.

An embodiment of the present invention provides a network personal recording processing method, including:

receiving a recording request message sent by the user, the recording request message including the program identifier of the target program and/or the start and end time of playing the target program;

If it is learned that the recording state corresponding to the target program is the first state information indicating that it has not been recorded, then send a recording instruction message to the media function module to instruct the media function module to follow the target program included in the recording instruction message program identification and/or the start and end time of the target program broadcasting for program recording;

Wherein, after sending the recording instruction message to the media function module, it also includes:

updating the recording status corresponding to the target program to second status information indicating that it is being recorded; or

After receiving the recording success response returned by the media function module, update the recording status corresponding to the target program to the third status information indicating that it has been recorded.

An embodiment of the present invention provides a network personal recording processing device, including:

A receiving module, configured to receive a recording request message sent by a user, the recording request message including the program identifier of the target program and/or the start and end time of playing the target program;

The sending module is configured to send a recording instruction message to the media function module if it is known that the recording status corresponding to the target program is the first status information indicating that it has not been recorded, so as to instruct the media function module to follow the recording instructions included in the recording instruction message. record the program ID of the target program and/or the start and end time of playing the target program;

A setting module, configured to update the recording status corresponding to the target program to second status information indicating that it is being recorded after the sending module sends a recording indication message to the media function module; After receiving the successful recording response returned by the media function module, update the recording status corresponding to the target program to the third status information indicating that it has been recorded; and, for receiving the media function module at the receiving module After the deletion response is returned, the recording status corresponding to the target program is updated to the first status information indicating that it has not been recorded.

An embodiment of the present invention provides a network personal recording processing system, including:

The user equipment is configured to send a recording request message to the network personal recording processing device, where the recording request message includes the program identifier of the target program and/or the start and end time of playing the target program;

The network personal recording processing device is configured to receive the recording request message sent by the user equipment, and send the message to the central media function module device after learning that the recording status corresponding to the target program is the first status information indicating that it has not been recorded. recording instruction message, to instruct the central media function module device to perform program recording according to the program identifier of the target program included in the recording instruction message and/or the start and end time of playing the target program; the network personal recording processing device also It is used to update the recording state corresponding to the target program to the second state information indicating that it is recording; or after receiving the recording success response returned by the media function module, update the recording state corresponding to the target program to Indicates the third state information that has been recorded;

The central media function module device is used to record programs according to the recording request message sent by the network personal recording processing device.

The network personal recording processing method, device and system provided by the embodiments of the present invention not only meet the user's recording request, but also avoid repeated recording through the recording status of the program, effectively saving storage resources on the network side, and through virtual space and physical Space mapping realizes the management of user network space and improves business service quality.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the traditional IPTV system architecture schematic diagram using the network personal recording processing method of the present invention;

Fig. 2 is a flow chart of Embodiment 1 of the network personal recording processing method of the present invention;

FIG. 3 is a flow chart of Embodiment 2 of the network personal recording processing method of the present invention;

Fig. 4 is a signaling flow chart of scheduled recording in the network personal recording processing method of the present invention;

Fig. 5 is the signaling flowchart of recording immediately in the network personal recording processing method of the present invention;

Fig. 6 is the signaling flowchart of requesting deletion of NPVR recording in the network personal recording processing method of the present invention;

Fig. 7 is a signaling flowchart of NPVR content storage and scheduling in the network personal recording processing method of the present invention;

Fig. 8 is a schematic diagram of multi-request processing of the network personal recording processing method of the present invention;

FIG. 9 is a schematic structural diagram of Embodiment 1 of the network personal recording processing device of the present invention;

FIG. 10 is a schematic structural diagram of Embodiment 2 of the network personal recording processing device of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The following embodiments of the present invention provide a solution for realizing NPVR services. This solution is applicable to both IMS-Based IPTV systems and non-IMS-Based IPTV systems such as traditional IPTV systems. Fig. 1 is a schematic diagram of a traditional IPTV system architecture using the network personal recording processing method of the present invention. The components and interfaces involved in the NPVR business process are described in Fig. 1, and the components involved include:

UE (User Equipment) is the terminal equipment for users to access IPTV services, such as set-top boxes and mobile phones.

SCF (Service Control Function), is an IPTV business logic control function module.

SDF (Service Discovery Function) is responsible for IPTV service discovery and selects the appropriate SSF for the terminal.

SSF (Service Selection Function) is responsible for providing business information display and service selection functions.

The MCF (Media Control Function) media control module is responsible for the control of program recording and provides media flow control and management functions.

MDF: (Media Delivery Function) The media transmission module is responsible for the recording and playback of programs, and provides media storage and transmission functions.

The interfaces involved include:

ISC: The SSF selects an interface through which the UE requests the SDF for the SSF serving it.

Xa: UE acquires content display information through this interface, and sends NPVR recording and canceling requests.

Si: SSF sends NPVR recording or deletion request to SCF through this interface.

Y2: The SCF issues an NPVR content recording or deletion command to the MCF through this interface.

Xp: The MCF issues a record or delete command to the MDF through this interface.

Xc: The UE requests the MCF to play the NPVR recorded content through this interface.

Xd: Through this interface, the UE requests the MDF to record the content media stream of the NPVR and play the content.

In addition, the IP Multimedia Subsystem (IMS), as a multimedia subsystem under the standard architecture of the Next Generation Network (NGN), provides an integrated system architecture for the fixed softswitch network and the mobile softswitch network. IMS-Based IPTV is an IPTV system architecture built on the IMS framework, and it has been the focus of attention in the industry in recent years. In IMS-Based IPTV, IMS provides unified control, dynamic management and supports various communication, entertainment, and information services provided by operators, and integrates fixed and mobile access methods, which is the development direction of future IPTV services.

The solution provided by the present invention is specifically that, after the service control module in the above system receives the recording request message sent by the user, in order to avoid repeated recording and waste of resources, the service control module needs to judge whether the program requested by the user has been recorded before. Recorded, because the service control module will maintain a program table inside, which includes the programs provided by all IPTV services, so the judgment principle in this embodiment can be that the service control module sets the recording status for each program, wherein the recording status has multiple options For example, "first status information" indicates that the corresponding program has not been recorded, "second status information" indicates that the corresponding program is being recorded, "third status information" indicates that the corresponding program has been recorded, and so on. When the user requests to record one or several programs, the service control module judges that if the program is in the state of "first status information", it means that the program has not been recorded and can be recorded, so it sends a recording instruction message to the media function module to indicate The media function module performs program recording according to the program identification of the target program included in the recording instruction message and/or the start and end time of playing the target program. Among them, the program ID indicates that the user needs to record the entire content of the program corresponding to the program ID, and the start and end time indicate that the user needs to record part of the content of a program within a certain period of time. Generally, the start time is the current time of the system, and the end time is generally the time of a program. End Time.

Through this solution, the storage cost of NPVR recording content on the network side can be greatly reduced, the message interaction between the service control module and the media function module components can be reduced, and the service quality of the service can be improved. Since there are various scenarios for a user to record a program, such as immediate recording and scheduled recording, the following embodiments provide implementations for the immediate recording and scheduled recording respectively.

Fig. 2 is a flow chart of Embodiment 1 of the network personal recording processing method of the present invention. This embodiment is aimed at the immediate recording request situation. As shown in Fig. 2, the method includes:

Step 100, receiving an immediate recording request message sent by a user, the immediate recording request message including the program identifier of the target program and/or the start and end time of playing the target program;

In the IMS-Based IPTV system or the traditional IPTV system, there is a service control module (Service Control Function; hereinafter referred to as: SCF) responsible for completing the business logic control, and the user (UE) through the IP multimedia subsystem core network (IMS CORE) Or the service selection module (ServiceSelection Function; hereinafter referred to as: SSF) sends an immediate recording request to the SCF, and the immediate recording request includes the program identification of the program requested to be recorded and/or the start and end time of the program's broadcast.

Step 101, obtaining the recording state corresponding to the target program;

After the SCF receives the user's immediate recording request, it will search the current recording status of the program that the user needs to record in the program list maintained by itself. If it is the first status information, it can record. If it is the second status information or the third status information, it means that a user has requested to record the program before, and the program is currently being recorded or has finished recording, and there is no need to record again. It is only necessary to play the previously recorded program according to the user's request when the user requests to play the recorded program. The start and end time of the recording can be played to the user.

Step 102: If it is learned that the recording status corresponding to the target program is the first status information indicating that it has not been recorded, immediately send a recording instruction message to the media function module to instruct the media function module to The program identification of the target program and/or the start and end time of playing the target program are used for program recording.

The SCF searches the program list and learns that the program that the user requests to record immediately has not been recorded, then the SCF immediately sends a recording indication message to the media function module, and the media function module can follow the program identification of the target program included in the recording indication message and/or the playback time of the target program Start and end time for program recording. The media function module (hereinafter referred to as: MF) mentioned therein specifically includes MCF and MDF.

In the above-mentioned embodiment, since the recording is performed according to the recording state of the program, that is, the SCF filters according to the recording request of the user, and only the program that the user requests to record is recorded, and all the same program recording tasks are only sent to the MF once, and all Only one copy of the NPVR recorded program is stored on the network side. The recording of the same program by multiple users corresponds to the same physical file, and one physical storage corresponds to the virtual storage of multiple users. Realize the management of user network space through the mapping of virtual space and physical space, which can save system resources and facilitate unified management.

In the above-mentioned embodiment, since there is a situation that the user wants to cancel the unrecorded task or request to delete the recorded file after requesting to record a program, but since only one file is stored on the network side, in order to avoid a user requesting to delete Then the program file will be deleted, which will affect the normal business of other users. In this embodiment, a parameter is introduced for each program in the program table maintained by the SCF, that is, the number of references. After that, the SCF adds 1 to the number of references of the program, and it can be seen that the number of references can reflect the number of times the program is requested to be recorded. When a user requests to cancel or delete the recording of a program, the SCF first decrements the reference count corresponding to the program by 1, but does not do other processing; only when the reference count is reduced to 0, the SCF sends a delete task request to the MF Delete the corresponding recording file.

In the network personal recording processing method provided by this embodiment, not only can meet the user's request for immediate recording, but also avoid repeated recording through the recording status of the program, effectively saving the storage resources on the network side, through virtual space and physical space The mapping realizes the management of user network space and improves the service quality of business.

Fig. 3 is a flow chart of Embodiment 2 of the network personal recording processing method of the present invention. This embodiment is aimed at the case of a reserved recording request. As shown in Fig. 3, the method includes:

Step 200, receiving a reservation recording request message sent by a user, the reservation recording request message including the program identifier of the target program and/or the start and end time of playing the target program;

The UE sends a scheduled recording request to the SCF through the IMS CORE or SSF, and the SCF receives the scheduled recording request. Then, the SCF adds 1 to the number of references corresponding to the target program to identify that the scheduled recording request has been received.

Step 201, within a predetermined time before the broadcast of the target program, obtain the recording status and the number of references corresponding to the target program;

The SCF can start a timer before the target program starts to play, and count down to play. The start time can be pre-set. After the timer is started, the SCF will search the program table for relevant information such as the recording status and the number of references of the target program within a predetermined time before playing. Once the status information is received, send a recording instruction message to the MF, and the MF can record the program according to the program identifier of the target program included in the recording instruction message and/or the start and end time of the target program. If it is learned that although the number of references is not zero, but the corresponding recording state is not the first state information, it means that the program has been requested to be recorded before, and there is no need to record again this time.

Step 202: within a predetermined time before the target program is played, if it is known that the number of references corresponding to the target program is not zero, and the recording state corresponding to the target program is the first state information, send a recording indication message to the MF to instruct the MF to follow the Record the program by recording the program ID of the target program and/or the start and end time of the target program included in the recording instruction message.

The SCF learns that the program requested by the user to be recorded meets the conditions for sending a recording instruction message to the MF within a predetermined time before the program is played, and then sends a recording instruction request to the MF to record the program.

In the network personal recording processing method provided by this embodiment, not only can the user's request for scheduled recording be satisfied, but also avoid repeated recording through the recording status of the program, effectively saving storage resources on the network side, through virtual space and physical space The mapping realizes the management of user network space and improves the service quality of business.

In each of the above embodiments, after the SCF sends the recording indication message to the MF, the step of updating the recording status corresponding to the target program in the program table to the second status information indicating that it is being recorded is further included, so as to avoid program recording at the MF Repeated recording occurs during the . After the MF recording is successful, it is necessary to return a successful recording response to the SCF. After receiving the successful recording response returned by the MF, the SCF updates the recording status corresponding to the target program in the program list to the third status information indicating that it has been recorded. In order to avoid repeated recordings from occurring in the future. MF can effectively realize a physical storage corresponding to multiple users' virtual storage by setting the recording status of the program at different stages.

In each of the above embodiments, it may also include that after the SCF receives the immediate recording request message or the scheduled recording request message sent by the UE, it first needs to verify whether the target program is allowed to be recorded, and then authenticates the user after it is known that the target program is allowed to be recorded. Whether the program recording authority and recording storage space of the user meet the recording requirements, in the embodiment of the present invention, the user NPVR network space is managed according to the virtual space with space or duration as the unit, specifically, the user's NPVR network space can be treated as a logical space, and Not actual physical space. In order to maintain the management and billing of the user's cyberspace, the management of the user's cyberspace is realized through "cyberspace products". The cyberspace product defines the validity period of the user's virtual cyberspace and the storage of recorded content. The product defines the network space represented by capacity or duration, and the total network space of the user is the sum of the network space attributes of all the products ordered.

Fig. 4 is the signaling flow chart of reservation recording in the network personal recording processing method of the present invention, and this embodiment is described by taking the realization in the traditional IPTV system as an example, as shown in Fig. 4 , the process includes:

Step 1a, the UE sends a reservation recording request to the SSF, such as a "NPVR offline record request" message;

Step 2a, SSF forwards the "NPVR offline record request" message to SCF;

Step 3a, SCF checks whether the received NPVR request is legal, such as whether the channel supports NPVR, etc.;

Step 4a, SCF checks the authorization, for example, whether the user has the recording permission of the channel, and whether there is enough network space;

Note: The NPVR authorization is consistent with the channel authorization, that is, as long as the user has access to the channel, he has the NPVR recording permission of the channel.

Step 5a, SCF saves the record of user NPVR recording request, and updates the corresponding program reference times to add 1;

Step 6a, the SCF returns the processing result of the NPVR scheduled recording request to the UE, that is, informs the UE that the scheduled recording request has been received and processed accordingly;

Step 7a: Start a timer, send a recording task to the MF before the program starts playing, record the file, and set the recording status of the program as the second status information.

Fig. 5 is the signaling flow chart of immediate recording in the network personal recording processing method of the present invention, and present embodiment is described with the realization in the traditional IPTV system as an example, as shown in Fig. 5, this process comprises:

Step 1b, UE joins the multicast group and starts to watch the program;

In step 2b, the UE sends an immediate recording request to the SSF, such as an "NPVR impulserecordrequest" message;

Step 3b, the SSF forwards the "NPVR impulserecord request" message to the SCF;

Step 4b, SCF checks whether the received NPVR request is legal, such as whether the channel supports NPVR, etc.;

Step 5b, SCF checks the authorization, for example, whether the user has the recording permission of the channel and whether there is enough network space;

Note: The NPVR authorization is consistent with the channel authorization, that is, as long as the user has access to the channel, he has the NPVR recording permission of the channel.

In step 6b, the SCF saves the record of the user's NPVR recording request, and adds 1 to the corresponding number of program references;

In step 7b, the SCF returns the processing result of the NPVR immediate recording request to the UE, that is, informs the UE that the immediate recording request has been received and processed accordingly;

Step 8b, if the recording task for the current program has not yet been issued, that is, the recording state corresponding to the program is the first state information, then the SCF immediately sends the recording task for the current program to the MF, and updates the recording state corresponding to the program to the second state information; If the recording state corresponding to the program is not the first state information, it means that the program has been recorded before, and there is no need to record again this time, that is, there is no need to issue a recording task to the MF.

In this embodiment, step 7b and step 8b may not have a chronological order.

The embodiment of the present invention also provides a mechanism for deleting the recording request. The user accesses the user self-service interface through the set-top box, browses the NPVR recording requests that have been applied, and can select the corresponding recording cancellation/deletion recording application through the platform (Portal) interface. The "cancel" is for the NPVR recording that has not been recorded yet, and the "delete" is for the NPVR recording request that has been recorded. When the user processes the user's NPVR recording cancellation/deletion application, the NPVR reference count of the relevant program is decremented by 1. Deleting the NPVR recording is specifically, after receiving the cancel recording instruction corresponding to the target program or deleting the program instruction sent by the UE, decrement the number of references corresponding to the target program by one, and reduce the number of references corresponding to the target program to zero , send a deletion task to the MF to instruct the MF to delete the recording file corresponding to the target program, and after receiving the deletion response returned by the MF, update the recording status corresponding to the target program to the first status information indicating that it has not been recorded.

It should be noted that if there is a related program that has been successfully recorded but is no longer referenced by other NPVRs, a recording file deletion task is sent to the MF to delete the file. It may also include deleting the recording record corresponding to the target program in the database for presenting historical recording records to the user. The database is used to store the user's historical recording records. When the user requests to record a program, a record is added to the database. When the user logs in through the platform (Portal) interface, all of its historical recording records can be displayed to the user .

Fig. 6 is the signaling flow chart of requesting deletion of NPVR recording in the network personal recording processing method of the present invention, and this embodiment is described by taking the realization in the traditional IPTV system as an example, as shown in Fig. 6 , the process includes:

Step 1c, the UE sends a recording cancel/delete request to the SSF;

Step 2c, SSF forwards recording cancel/delete request to SCF;

Step 3c, when the cancellation/deletion trigger condition of the recording file is reached, the SCF sends a recording cancellation/deletion task to the MF;

The deletion trigger conditions of the recorded files include: the user initiates an NPVR recording cancellation or deletion request, if the related program recording task has been issued; or the SCF starts the timer, and detects that there is no relevant NPVR reference for the file being recorded or has been recorded.

Step 4c, SCF deletes related records in the database;

In step 5c, the MF executes a recording cancellation/deletion task, and deletes the recording file.

Fig. 7 is a signaling flowchart of NPVR content storage and scheduling in the network personal recording processing method of the present invention. This embodiment is described by taking the implementation in a traditional IPTV system as an example. As shown in Fig. 7, the process includes:

Step 1d, SCF sends a program recording request to the central node MF;

Step 2d, the central node MF executes the recording task;

The central MCF sends a program recording command to the central MDF, and the central MDF joins the multicast for program recording;

In step 3d, the central node MF pre-pushes (Push) part of the file content to the edge node MF.

In this embodiment, in the case of MDF hierarchical deployment, the central MDF records a copy, and pushes (Push) part of the file content to the edge MDF in advance. When the UE requests to play a recorded program, the edge MDF determined according to the nearest scheduling principle first plays to the UE part of the content of the recorded file corresponding to the program sent in advance by the central MDF that received the recording request message, and then uses the content downloaded from the central MDF while playing. way to provide services for the UE.

In order to prevent users from indefinitely retaining NPVR recording content and causing unlimited storage growth on the system side, MF formulates an aging policy for NPVR recording content, and regularly deletes the content of edge and regional nodes. If the NPVR content expires and the user does not delete it manually, the system will automatically set it as invalid and delete the corresponding recording file.

Figure 8 is a schematic diagram of multi-request processing of the network personal recording processing method of the present invention. All NPVR recording programs are only stored in one copy at the server end, and multiple users' recordings of the same program correspond to the same physical file. Therefore, not all users All recording requests are sent to the MF. The user requests recording to update the reference times of related programs. The subsequent SCF will send the programs recorded by the user to the MF for recording according to the NPVR request of the program. SCF's solution to multiple requests is as follows: when the user requests immediate recording, if the current program has not been recorded, the SCF immediately sends the recording task to the MF to start recording. If a program that has not yet started is scheduled for recording or included in the immediate recording request, the recording task will be sent to MF a few minutes before the start of the program (configurable), and MF will start recording on time according to the request. When the user applies for deleting the NPVR recording request, if the recording task has been issued and there are no other NPVR recording references for the related program, the recording file deletion task is issued to the MF to delete the recording file. When the SCF is idle, it detects that the program has been recorded successfully but has no NPVR recording reference, and sends a file deletion task to the MF to delete the corresponding recorded file, that is, when the SCF detects that the corresponding recording status is the third status information indicating that it has been recorded, and A program whose reference count is zero indicates that the recording of the program is abnormal, and a deletion task is sent to the MF to instruct the MF to delete the recording file corresponding to the program.

As shown in FIG. 8 , a user's recording request may span multiple programs, and at this time, the reference times of related programs need to be changed. Specifically, the figure shows program 1, program 2 and program 3 which are played sequentially. During the playback of program 1, user 1 requests to record immediately and span the three programs of program 1, program 2 and program 3. Specifically, you can use The logo of program 1 or the start and end time of program 1 is notified to SCF, and the start and end time of program 1 includes the current system time and the end time of program 1; The recording status is the first status information, and since it is an immediate recording request, the SCF immediately sends a recording instruction to the MF to record the program, and simultaneously updates the recording status corresponding to program 1 in the program list to the second status information, and updates the program 1. Add 1 to the reference times corresponding to program 2 and program 3 respectively. Next, user 2 requests to record program 1 immediately. After receiving the immediate request, the SCF first searches the program list and finds that the recording status of program 1 is the second status information, so it only adds 1 to the number of references corresponding to program 1 in the program list. , and do not send the recording task to the MF again. Next, user 3 requests to schedule recording of program 2. After the SCF receives the scheduled recording request, the SCF adds 1 to the number of references corresponding to program 2 in the program list, and waits for program 2 to be played. Within a predetermined period of time before program 2 is played, the SCF learns that the number of references corresponding to program 2 is 2, and the recording status is the first status information, so it sends the task of recording program 2 to the MF, and the SCF can use the ID of program 2 or program The start and end times of 2 notify the MF to record program 2, and simultaneously update the recording status of program 2 to the second status information. Process program 3 in the same way. After the MF finishes recording program 1, program 2 and program 3, the SCF updates the recording status corresponding to program 1, program 2 and program 3 to the third status information.

The implementation plan and process of the network personal recording processing method provided by the embodiment of the present invention in the IMS-Based IPTV system are basically consistent with the above-mentioned embodiments, and the SSF in the process can be replaced by IMSCORE, so you can fully refer to the above-mentioned embodiments , which will not be repeated here. It should be noted that the process of implementing network personal recording based on the traditional IPTV system can be, but not limited to, through the HTTP interface. The process of realizing network personal recording in the IMS-Based IPTV system can be through the SIP interface.

The network personal recording processing method provided by the present invention enables only one copy of the NPVR recording programs owned by multiple users to be saved on the system side, and the recording of the same program by multiple users corresponds to the same physical file, and one physical storage corresponds to multiple The user's virtual storage greatly reduces the storage cost of NPVR recording content; the user's NPVR recording and deletion requests are filtered through SCF, and the issuance of file recording and deletion commands is controlled, which simplifies the message interaction between components; the central MF Record a copy for storage, and push part to the edge MF in advance. When the user requests to play, it will be dispatched to the corresponding edge MF to provide services. Storage overhead while improving service quality.

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

FIG. 9 is a schematic structural diagram of Embodiment 1 of the network personal recording processing device of the present invention. The network personal recording processing device may be the SCF involved in the above method embodiment. As shown in FIG. 9 , the SCF includes a receiving module 11 and a sending module 12, Wherein, the receiving module 11 is used to receive the recording request message sent by the UE, and the recording request message includes the program identifier of the target program and/or the start and end time of playing the target program; the sending module 12 is used to know that the recording state corresponding to the target program is Indicates that the first state information has not yet been recorded, and then sends a recording instruction message to the MF to instruct the MF to record the program according to the program identifier of the target program included in the recording instruction message and/or the start and end time of the target program.

Specifically, after the receiving module 11 in the SCF receives the recording request message sent by the SSF or IMS CORE, in order to avoid repeated recording and waste of resources, the SCF needs to determine whether the program requested by the user has been recorded before. Maintain a program table, which includes all the programs provided by the IPTV service, so the judgment principle in this embodiment can be that the SCF sets multiple recording states for each program, for example, "the first state information" indicates that the corresponding program has not been recorded yet, "the second The second status information" indicates that the corresponding program is being recorded, and the "third status information" indicates that the corresponding program has been recorded and so on. When the user requests to record one or several programs, the SCF judges through the sending module 12 that if the program is in the state of "first status information", it means that the program has not been recorded and can be recorded, so it sends a recording indication message to the MF to indicate The MF performs program recording according to the program identifier of the target program included in the recording instruction message and/or the start and end time of playing the target program. Among them, the program ID indicates that the user needs to record the entire content of the program corresponding to the program ID, and the start and end time indicate that the user needs to record part of the content of a program within a certain period of time. Generally, the start time is the current time of the system, and the end time is generally the time of a program. End Time.

The network personal recording processing device provided in this embodiment can greatly reduce the storage cost of NPVR recording content on the network side, reduce message interaction between SCF and MF components, and improve business service quality.

Figure 10 is a schematic structural diagram of Embodiment 2 of the network personal recording processing device of the present invention. Based on the above embodiment, as shown in Figure 10, the SCF includes a receiving module 11 and a sending module 12, wherein the sending module 12 includes a first sending sub-module 121 and /or the second sending submodule 122, wherein the first sending submodule 121 is configured to receive the immediate recording request message sent by the UE in the receiving module 11, and learn that the recording status corresponding to the target program is the first status information indicating that it has not yet been recorded Afterwards, send the recording indication message to the MF, and add one to the number of references corresponding to the target program; the second sending submodule 122 is used to correspond to the target program after the receiving module 11 receives the scheduled recording request message sent by the UE. Add one to the reference count of the target program, and within the predetermined time before the target program is played, after detecting that the reference count corresponding to the target program is not zero, and the recording state corresponding to the target program is the first state information indicating that it has not been recorded, send the The MF sends a recording indication message.

The first sending sub-module 121 and the second sending sub-module 122 respectively process the immediate recording and scheduled recording received by the receiving module 11. For the specific processing flow, please refer to the above-mentioned embodiments of the network personal recording processing methods, which are not described here. Let me repeat.

In the network personal recording processing settings provided in this embodiment, in order to meet the user’s request to delete the recording, it may also include the deletion module 13 to complete the user’s cancellation/deletion request. Specifically, the deletion module 13 receives the corresponding After canceling the recording instruction of the target program or deleting the program instruction, decrement the reference times corresponding to the target program by 1, and when the reference times corresponding to the target program is reduced to 0, send to the MF to instruct the MF to delete the recording corresponding to the target program File deletion tasks.

Since SCF realizes that only one copy of all NPVR recorded programs is stored on the network side based on the recording status of the programs, the recording of the same program by multiple users corresponds to the same physical file, and one physical storage corresponds to the virtual storage of multiple users Purpose, therefore, it is necessary to update the recording status of the program according to different stages. The task of updating the recording status can be completed through the setting module 14. Specifically, the setting module 14 can set the target The recording state corresponding to the program is updated to represent the second state information being recorded; it is also possible to update the recording state corresponding to the target program to represent the third state information that has been recorded after the receiving module 11 receives the response of the successful recording returned by the MF. ; After receiving the deletion response returned by the MF, the receiving module 11 may update the recording status corresponding to the target program to the first status information indicating that it has not been recorded.

The network personal recording processing device provided by this embodiment can not only satisfy the user's request for immediate and scheduled recording, but also avoid repeated recording through the recording status of the program, effectively saving storage resources on the network side, through virtual space and The mapping of physical space realizes the management of user network space and improves the quality of business services.

This embodiment also provides a network personal recording processing system, including a user equipment such as UE, a network personal recording processing device such as SCF, and a central MF, where the central MF device includes, for example, MDF and MCF. Wherein, the UE sends a recording request message to the SCF, and the recording request message includes the program identifier of the target program and/or the start and end time of playing the target program; after receiving the recording request message sent by the UE, the SCF judges that the target program The recording state corresponding to the program, and after learning that the recording state corresponding to the target program is the first state information indicating that it has not been recorded, send a recording instruction message to the central MF to instruct the central MF to follow all the recording instructions included in the recording instruction message. The program identifier of the target program and/or the start and end time of the target program are recorded; the central MF can record the program according to the recording request message sent by the SCF.

The system of this embodiment may further include an edge MF, and the edge MF provides services for the UE according to the nearest scheduling principle. And, after the recording of the central MF program ends, at first send the partial content of the recorded file corresponding to the program to the edge MF. When the edge MF receives a request from the UE to play a recorded program, it first plays part of the content of the recording file corresponding to the program sent by the central MF in advance, and then downloads from the central MF while playing to provide services for the UE.

It should be noted that both the SCF and the central MF provided in this system embodiment can be applied to the network personal recording methods provided in the foregoing embodiments to realize network personal recording. For specific functions and processing procedures, please refer to the foregoing embodiments. I won't repeat them here.

In the network personal recording processing system provided by this embodiment, not only can meet the user's request for immediate and scheduled recording, but also avoid repeated recording through the recording status of the program, effectively saving storage resources on the network side, through virtual space and The mapping of physical space realizes the management of user network space and improves the quality of business services.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (15)

1. A network personal recording processing method, characterized in that, comprising: receiving a recording request message sent by the user, the recording request message including the program identifier of the target program and/or the start and end time of playing the target program; If it is learned that the recording state corresponding to the target program is the first state information indicating that it has not been recorded, then send a recording instruction message to the media function module to instruct the media function module to follow the target program included in the recording instruction message program identification and/or the start and end time of the target program broadcasting for program recording; Wherein, after sending the recording instruction message to the media function module, it also includes: updating the recording status corresponding to the target program to second status information indicating that it is being recorded; or After receiving the recording success response returned by the media function module, update the recording status corresponding to the target program to the third status information indicating that it has been recorded. 2. The network personal recording processing method according to claim 1, wherein the recording request message is an immediate recording request message; Wherein, the sending the recording indication message to the media function module is: after receiving the immediate recording request message and knowing that the recording state corresponding to the target program is the first state information, sending the recording instruction message to the media function module Record instruction messages. 3. The network personal recording processing method according to claim 2, characterized in that the method further comprises adding one to the reference count corresponding to the target program. 4. The network personal recording processing method according to claim 1, wherein the recording request message is a reservation recording request message, and the method further comprises adding one to the number of references corresponding to the target program; Wherein, the sending of the recording indication message to the media function module is: within a predetermined time before the playing of the target program, if it is known that the number of references corresponding to the target program is not zero, and the recording state corresponding to the target program is Indicates the first status information that has not been recorded, and sends the recording instruction message to the media function module. the 5. The network personal recording processing method according to any one of claims 1 to 4, characterized in that the method further comprises: After receiving the recording request message sent by the user, if it is learned that the recording status corresponding to the target program is the second status information indicating that it is being recorded or the third status information indicating that it has been recorded, no processing is performed. 6. The network personal recording processing method according to any one of claims 1 to 4, characterized in that, after receiving the recording request message sent by the user, further comprising: After the verification is known that the target program is allowed to be recorded, the user's program recording authority and recording storage space are verified. 7. The network personal recording processing method according to claim 3 or 4, wherein the method further comprises: After receiving the cancel recording instruction or delete program instruction corresponding to the target program sent by the user, the reference count corresponding to the target program is reduced by one, and the reference count corresponding to the target program is reduced to At zero o'clock, send a deletion task to the media function module to instruct the media function module to delete the recording file corresponding to the target program; After receiving the deletion response returned by the media function module, update the recording status corresponding to the target program to the first status information indicating that it has not been recorded. 8. The network personal recording processing method according to claim 7, wherein the method further comprises: When it is detected that there is a program whose corresponding recording status is the third status information indicating that it has been recorded, and the corresponding reference count is zero, send a delete task to the media function module to instruct the media function module to delete the program record file corresponding to the above program. 9. The network personal recording processing method according to any one of claims 1 to 4, characterized in that the method further comprises: The edge media function module provides services for the user according to the principle of nearby scheduling. When the user requests to play the recorded program, it first plays part of the content of the recorded file corresponding to the program sent by the media function module in advance, and then uses The service is provided to the user by downloading from the media function module while playing. 10. The network personal recording processing method according to claim 9, wherein the method further comprises: Delete the recording files stored on the edge media function module according to a predetermined aging deletion policy. 11. A network personal recording processing device, characterized in that it comprises: A receiving module, configured to receive a recording request message sent by a user, the recording request message including the program identifier of the target program and/or the start and end time of playing the target program; The sending module is configured to send a recording instruction message to the media function module if it is known that the recording status corresponding to the target program is the first status information indicating that it has not been recorded, so as to instruct the media function module to follow the recording instructions included in the recording instruction message. record the program ID of the target program and/or the start and end time of playing the target program; A setting module, configured to update the recording status corresponding to the target program to second status information indicating that it is being recorded after the sending module sends a recording indication message to the media function module; After receiving the recording success response returned by the media function module, update the recording state corresponding to the target program to the third state information indicating that it has been recorded; and, for receiving the media function module by the receiving module After the deletion response is returned, the recording status corresponding to the target program is updated to the first status information indicating that it has not been recorded. 12. The network personal recording processing device according to claim 11, wherein the sending module comprises: The first sending sub-module is configured to send the media function to The module sends the recording instruction message, and adds one to the number of references corresponding to the target program; and/or The second sending sub-module is used to add one to the number of references corresponding to the target program after the receiving module receives the scheduled recording request message sent by the user, and to process the reference times corresponding to the target program before playing the target program Within a predetermined period of time, after detecting that the number of citations corresponding to the target program is not zero, and the recording state corresponding to the target program is the first state information indicating that it has not been recorded, the recording instruction message is sent to the media function module. 13. The network personal recording processing device according to claim 11 or 12, further comprising: The deletion module is used to reduce the number of references corresponding to the target program by one after the receiving module receives the cancel recording instruction or delete program instruction corresponding to the target program sent by the user. When the number of citations corresponding to the target program decreases to zero, a deletion task is sent to the media function module to instruct the media function module to delete the recording file corresponding to the target program. 14. A network personal recording processing system, characterized in that it comprises: The user equipment is configured to send a recording request message to the network personal recording processing device, where the recording request message includes the program identifier of the target program and/or the start and end time of playing the target program; The network personal recording processing device is configured to receive the recording request message sent by the user equipment, and send the message to the central media function module device after learning that the recording status corresponding to the target program is the first status information indicating that it has not been recorded. recording instruction message, to instruct the central media function module device to perform program recording according to the program identifier of the target program included in the recording instruction message and/or the start and end time of playing the target program; the network personal recording processing device also It is used to update the recording state corresponding to the target program to the second state information indicating that it is recording; or after receiving the recording success response returned by the central media function module device, update the recording state corresponding to the target program to Updated to indicate the third status information that has been recorded; The central media functional module device is used to record programs according to the recording instruction message sent by the network personal recording processing device. 15. The network personal recording processing system according to claim 14, further comprising: The edge media function module provides services for the user equipment according to the principle of nearby scheduling, and when the user equipment requests to play a recorded program, it first plays the recorded file corresponding to the program sent in advance by the central media function module device Part of the content is then downloaded from the central media function module device while playing to provide services for the user equipment. the

Images