WO2016086692A1

WO2016086692A1 - Method, apparatus and system for performing update processing on service announcement file

Info

Publication number: WO2016086692A1
Application number: PCT/CN2015/087881
Authority: WO
Inventors: 黄婧
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-12-03
Filing date: 2015-08-24
Publication date: 2016-06-09
Also published as: CN105721525A

Abstract

The present invention provides a method, an apparatus and a system for performing update processing on a service announcement file. The method comprises: a terminal acquires first version information corresponding to a current version SA file delivered by a network side device; the terminal determines whether the first version information is consistent with second version information corresponding to a local SA file; and determine, according to a determining result, whether to perform update processing on the local SA file. By means of the technical solutions provided in the present invention, a problem in related technologies that overheads of a terminal are increased because the terminal can determine whether to update a locally stored SA file only after information comprised in the SA is parsed is resolved; and it is ensured that when an SA version is not a newest version, the terminal receives and parses an SA file delivered by a network side, thereby effectively reducing processing pressure of the terminal, improving processing efficiency and reducing electricity consumption.

Description

Method, device and system for updating business statement file

Technical field

The present invention relates to the field of communications, and in particular to a method, device, and system for updating a Service Announcement (SA) file.

Background technique

With the rapid development of the mobile Internet and the popularization of smart terminals, mobile multimedia services are also growing rapidly, which brings huge network pressure to mobile operators. Mobile operators have to expand and upgrade the network by investing high costs. At the same time, the rapid development of multimedia and data services based on open Internet has led mobile operators to become pipelines, relying only on traffic charges, so their input and output ratio is huge, and there are more and more problems. There is an urgent need for multimedia and A new business model for data services has emerged.

For the mobile multimedia service, there are many concurrent users, large amount of data, long duration and sensitive time delay. The 3rd Generation Partnership Project (3GPP) introduces multimedia broadcast multicast service (Multimedia Broadcast). /Multicast Service (MBMS) is a point-to-multipoint service that pushes the same service data source to a multi-target user in a mobile cellular network. It can not only carry multimedia services but also data services. Less network resources provide multimedia/data services for a large number of users with the same needs, thereby realizing network resource sharing, improving utilization of network resources, and reducing network pressure.

The LTE-based Enhanced Multimedia Broadcast/Multicast Service (eMBMS) evolves the MBMS service based on the MBMS single frequency network (Multicast Broadcast Single Frequency Network). The MBSFN technology is defined as the independent broadcast multicast mode of the MBSFN Area, which improves the performance of the MBMS service and adapts to the new System Architecture Evolution (SAE)/Long-Term Evolution. The system architecture of LTE is more suitable for the transmission of multimedia/data services over mobile cellular networks. Compared with MBMS, eMBMS technology is more mature, and its LTE network has wider bandwidth, so it can provide users with higher quality. The business thus gains a better user experience.

The Service Announcement (SA) can be regarded as the eMBMS service guide or program list, which is the navigation information of the eMBMS service. The data structure mainly includes the metadata encapsulation metadata envelope and the metadata fragment metadata fragment. The metadata envelope is metadata. The index of the fragment identifies additional information such as the type of the metadata fragment. The metadata fragment mainly includes the following types: service information (User Service Description (USD)), scheduling information (schedule), and security information ( Security (Security), session information (Service Discovery Protocol (SDP), error correction coding (Forward Error Correction, FEC for short), file repair and statistical reporting information (related transmission process description) (Associated Delivery Procedure Description, referred to as ADPD), media information (Media Presentation Description (MPD)) and initial fragmentation information (Init Segment). A service statement information is a file in the form of Multipurpose Internet Mail Extensions (MIME), which is carried by a Service Announcement Channel (SACH) or based on a one-way file transfer along with a program stream. The protocol (File Delivery over Unidirectional Transport, FLUTE for short) is broadcast to the user.

Because the SA contains a large amount of information, it has certain advantages in the eMBMS broadcast channel. However, after the terminal completely receives the SA, the terminal parses the metadata envelope and the metadata fragment to consume power, and needs to periodically receive the FLUTE from the network broadcast channel. Packets, after assembling these packets and successfully parsing the information contained in the SA, can update the local storage, often causing a lot of extra overhead to the terminal.

For the related art, the terminal can determine whether to update the locally stored SA file to increase the terminal overhead only after the SA is parsed, and an effective solution has not been proposed.

Summary of the invention

The embodiment of the invention provides a method, a device and a system for updating an SA file to solve at least the above technical problem.

According to an embodiment of the present invention, a method for updating an SA file is provided, including: the terminal acquiring first version information corresponding to a current version SA file delivered by a network side device; the terminal determining the first Whether the version information is consistent with the second version information corresponding to the local SA file; and determining whether to update the local SA file according to the determination result.

Determining whether to update the local SA file according to the determination result includes: when the determination result indicates that the determination is consistent, the terminal prohibits updating the local SA file.

Before the terminal determines whether the first version information is consistent with the second version information, the terminal further includes: acquiring, by the terminal, a first version number corresponding to the metadata piece in the current version SA file.

Determining whether to perform the update process on the local SA file according to the determination result, the terminal determining, according to the determination result indication inconsistency, the second version number corresponding to the metadata segment in the local SA file and the first version a specified metadata piece that is inconsistent; the terminal requests update information of the specified metadata segment from a network side device; the terminal receives the update information from the network side device, and updates the information by using the update information The specified metadata fragment in the local SA file.

The receiving, by the terminal, the incremental update information from the network side device includes: receiving, by the terminal, the incremental update information by using a unicast channel.

Determining whether to perform update processing on the local SA file according to the determination result, the method, when the determination result indicates inconsistency, the terminal receives the SA file from the network side through the broadcast channel; and according to the SA file received from the network side Update the local SA file.

The method further includes: when the terminal does not locally store the SA file, the terminal acquires the current version of the SA document The terminal stores the current version SA file locally.

According to another embodiment of the present invention, an update processing system for an SA file is provided, including: a network side device, configured to deliver first version information corresponding to a current version SA file to a terminal; And determining whether the first version information is consistent with the second version information corresponding to the local SA file, and determining whether to perform update processing on the local SA file according to the determination result.

The network side device is further configured to add the first version information in the FLUTE FDT and send the FDT to the terminal.

The network side device is further configured to synchronously receive the first version information in the FDT when the first version information is added in an SA data structure.

According to another embodiment of the present invention, there is further provided an apparatus for updating an SA file, which is applied to a terminal, comprising: an obtaining module, configured to acquire a first version corresponding to a current version SA file delivered by a network side device The determining module is configured to determine whether the first version information is consistent with the second version information corresponding to the local SA file, and the determining module is configured to determine whether to perform update processing on the local SA file according to the determination result.

The determining module includes: a prohibiting unit, configured to prohibit updating the local SA file when the determination result indicates that the determination is consistent.

The acquiring module is configured to obtain a first version number corresponding to the metadata segment in the current version SA file.

The determining module includes: a determining unit, configured to: when the determination result indicates an inconsistency, determine a specified metadata piece that is inconsistent with the first version number by a second version number corresponding to the metadata fragment in the local SA file; a requesting unit, configured to request incremental update information of the specified metadata segment from a network side device; a receiving unit configured to receive the incremental update information from the network side device; and an update unit configured to utilize the increase The quantity update information updates the specified metadata piece in the local SA file.

The receiving unit is further configured to: when the determination result indicates inconsistency, receive the SA file from the network side through the broadcast channel; the update unit is further configured to update the local SA file according to the SA file received from the network side. .

According to the embodiment of the present invention, the terminal can determine whether the local SA file is the current latest version of the SA file, and determine whether to perform the update processing technology on the local SA file according to the determination result, and solve the related technology, the terminal only analyzes the SA The included information can be used to determine whether to update the locally stored SA file to increase the terminal overhead. The SA file is received and parsed by the network side only when the SA version is not the latest version. The processing pressure of the terminal improves processing efficiency and saves power.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a flowchart of a method for updating an SA file according to an embodiment of the present invention;

2 is a structural block diagram of an update processing system for an SA file according to an embodiment of the present invention;

3 is a structural block diagram of an apparatus for updating an SA file according to an embodiment of the present invention;

4 is a block diagram showing another structure of an update processing apparatus for an SA file according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a network according to a preferred embodiment of the present invention; FIG.

6 is a block diagram of a service claim system module according to a preferred embodiment 2 of the present invention;

7 is a block diagram of a terminal module according to a preferred embodiment 3 of the present invention;

8 is a flow chart of service distribution according to a preferred embodiment 4 of the present invention;

9 is a flowchart of service update according to a preferred embodiment 5 of the present invention;

10 is a flowchart showing a terminal implementation according to a preferred embodiment 6 of the present invention;

Figure 11 is a message flow diagram in accordance with a preferred embodiment 7 of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

Other features and advantages of the invention will be set forth in the description which follows, The objectives and other advantages of the invention may be realized and obtained by means of the structure particularly pointed in the appended claims.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is an embodiment of the invention, but not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

In order to solve the above technical problem, a method for updating an SA file is provided in this embodiment. FIG. 1 is a flowchart of a method for updating an SA file according to an embodiment of the present invention. As shown in FIG. 1, the process includes The following steps:

Step S102: The terminal acquires first version information corresponding to the current version SA file delivered by the network side device.

Step S104: The terminal determines whether the first version information is consistent with the second version information corresponding to the local SA file.

Step S106, determining, according to the determination result, whether to perform update processing on the local SA file.

Through the above steps, the terminal can determine whether the local SA file is the current latest version of the SA file, and determine whether to perform the update processing on the local SA file according to the determination result, and solve the related art, the terminal only analyzes the SA The included information can be used to determine whether to update the locally stored SA file and increase the terminal opening. The problem of the pin is to ensure that the SA file is sent and parsed by the network side only when the SA version is not the latest version, thereby effectively reducing the processing pressure of the terminal, improving the processing efficiency, and saving power.

It should be noted that the current version SA file in the above embodiment can be understood as the current latest version of the SA file.

In the embodiment of the present invention, the foregoing step S106 may have multiple implementation manners. In an optional example of the embodiment of the present invention, there may be multiple situations:

First case

When the foregoing judgment result is consistent, the terminal prohibits updating the local SA file, that is, if the SA file locally stored by the terminal is the latest version of the SA file, the terminal does not need to perform the SA file update.

Second case

It should be noted that before the terminal determines whether the first version information and the second version information are consistent, the following process may be performed: the terminal acquires the first version number corresponding to the metadata segment in the current version SA file.

When the determination result indicates that the determination result is inconsistent, the terminal determines a specified metadata segment whose second version number corresponding to the metadata fragment in the local SA file is inconsistent with the first version number; and the terminal requests the specified metadata fragment from the network side device. Incremental update information; the terminal receives the incremental update information from the network side device, and updates the specified metadata segment in the local SA file by using the incremental update information.

That is, if the locally stored SA file of the terminal is not the latest version, the terminal can selectively update the locally stored metadata segment without updating all local SA files.

In view of the complexity of the SA file format, the format of each type of metadata fragment information is relatively simple. The embodiment of the present invention proposes a type according to the version number of the metadata fragment information without adding a business process. Broadcast and unicast channels combine to distribute SA and can partially update SA files.

The terminal receives the foregoing metadata segment information through a unicast channel.

Third case

If the terminal does not store the SA file, the terminal obtains the current version of the SA file. The terminal stores the current version of the SA file locally. For example, the terminal does not store the SA file locally at the beginning. If the SA file is stored, the obtained current latest version of the SA file is directly stored in the terminal.

Fourth case

When the judgment result indicates inconsistency, the terminal receives the SA file from the network side through the broadcast channel; and updates the local SA file according to the SA file received from the network side, that is, the SA file locally stored in the terminal is not the current latest version. The terminal can also directly obtain the current latest version of the SA file through the broadcast channel, and use it to update the locally stored SA file.

For the various implementations of the foregoing step S106, the embodiments of the present invention provide the following technical solutions in order to better understand the foregoing technical solutions:

If the SA is stored in the local storage but is consistent with the SA version in the broadcast channel, the receiving SA packet is ignored.

If the SA is stored locally, but the version needs to be updated, the metadata fragment information that needs to be updated by the terminal may be requested by the unicast method after comparing with the version number of the locally stored metadata fragment.

If the SA is stored locally, but the version of the metadata fragment is too old, continue to receive the complete SA in the broadcast channel to achieve the purpose of incrementally updating the SA.

If you need to update the SA in full, you need to receive all the SA files in the broadcast channel. For example, if the SA is not stored locally, you can receive the SA file in the broadcast channel, and then parse the metadata envelope and the corresponding metadata fragment information.

In particular, when the user is playing a program, the SA information to be updated broadcasted to the terminal together with the program stream is mainly information related to the play, so as to ensure that the terminal can realize the key fragment related to the play when the program is played. The update, but not related to the fragment, can be obtained by the terminal through the SACH broadcast channel or the unicast channel when the user exits the play, and the acquisition method is as described above.

With the above technical solution provided by the embodiment of the present invention, the terminal can ensure that the terminal obtains the SA or the metadata fragment by using the broadcast or unicast mode without receiving the complete SA and parsing, thereby effectively reducing the processing of the terminal. Pressure, improve processing efficiency, and save power.

In order to better understand the above technical solution, the embodiment of the present invention further provides an SA file update processing system, as shown in FIG. 2, including:

The network side device 20 is configured to deliver the first version information corresponding to the current version SA file to the terminal 22;

The terminal 22 is configured to determine whether the first version information is consistent with the second version information corresponding to the local SA file, and determine whether to perform update processing on the local SA file according to the determination result.

Through the interaction process between the network side device and the terminal, the terminal can determine whether the local SA file is the current latest version of the SA file, and determine whether to update the local SA file according to the determination result, and solve the related art in the terminal. The SA file can be received and parsed by the network side only when the SA version is not the latest version. Therefore, the processing pressure of the terminal is effectively reduced, the processing efficiency is improved, and the power is saved.

Optionally, the network side device 20 is further configured to add the foregoing first version information in the FLUTE protocol FDT, and send the FDT to the terminal, and the first version information added in the SA data structure, in the FDT. The first version information is synchronously received.

In the embodiment, an update processing device for the SA file is provided, which is applied to the terminal, and is configured to implement the foregoing embodiment and the preferred embodiment, and the description has been omitted, and the following is related to the device. The module is explained. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Despite the following The apparatus described in the embodiment is preferably implemented in software, but hardware, or a combination of software and hardware, is also possible and conceivable. FIG. 3 is a structural block diagram of an apparatus for updating an SA file according to an embodiment of the present invention. As shown in Figure 3, the device comprises:

The obtaining module 30 is configured to obtain first version information corresponding to the current version SA file delivered by the network side device;

The determining module 32 is connected to the obtaining module 30, and is configured to determine whether the first version information is consistent with the second version information corresponding to the local SA file.

The determining module 34 is connected to the determining module 32 and configured to determine whether to perform update processing on the local SA file according to the determination result.

Through the comprehensive function of the foregoing modules, the terminal can determine whether the local SA file is the current latest version of the SA file, and determine whether to update the local SA file according to the determination result, and solve the related technology, the terminal only analyzes The information contained in the SA can be used to determine whether to update the locally stored SA file to increase the terminal overhead. The SA file is received and parsed by the network side only when the SA version is not the latest version. Reduce the processing pressure of the terminal, improve processing efficiency, and save power.

Optionally, as shown in FIG. 4, in order to implement the functions performed by the determining module 32, the determining module 32 includes: a prohibiting unit 320 configured to prohibit updating the local SA file when the determination result indicates that the matching is consistent.

In an optional example of the embodiment of the present invention, the obtaining module 30 is configured to obtain a first version number corresponding to the metadata segment in the current version SA file.

Further, the determining module 32 may further include the following unit: the determining unit 322 is configured to: when the determination result indicates that the determination is inconsistent, determine that the second version number corresponding to the metadata segment in the local SA file is inconsistent with the first version number. Specifying a metadata fragment; the requesting unit 324 is connected to the determining unit 322, and is configured to request the network side device to update the information of the specified metadata segment; the receiving unit 326 is connected to the requesting unit 324, and is configured to receive the foregoing from the network side device. The update information 328 is connected to the receiving unit 326 and configured to update the specified metadata segment in the local SA file by using the update information.

In order to further improve the foregoing technical solution, the receiving unit 326 is further configured to: when the determination result indicates inconsistency, receive the SA file from the network side through the broadcast channel; the updating unit 328 is further configured to receive according to the slave network side. The SA file updates the local SA file.

That is to say, in the foregoing embodiment, the data block related to the SA file version is added in the SA data structure, and is set to identify the current latest SA file version, and the FLUTE protocol file in the SACH or the program stream broadcast bearer channel is published. Another data block is added in the (FDT), and the data block identifies the SA version number broadcasted in the current service broadcast bearer channel and the ID of all metadata fragments and their corresponding version numbers. In this way, the terminal can detect the data block before receiving the SA in the service broadcast channel, and compare it with the locally stored data block:

In summary, by redefining the data structure of the business declaration information, it is proposed how to integrate the broadcast and unicast channels. The service declares an effective transmission method for SA distribution and update, thereby improving the processing efficiency of the terminal, reducing the power consumption of the terminal, and improving the user experience.

In order to better understand the method, device and system for updating the SA file in the above embodiments, the above technical solutions are detailed from various aspects with reference to FIG. 5 to FIG. 11 and the following preferred embodiment 1 to the preferred embodiment 7. Description:

Preferred embodiment 1

FIG. 5 is a schematic structural diagram of a network according to a preferred embodiment of the present invention, as shown in FIG. 5:

The management portal editing system 50 can provide a portal interface for the administrator to configure the business information;

The business statement management system 52 is primarily configured to generate and distribute business claims;

The program stream management system 54 is mainly configured to manage and distribute media streams;

An LTE communication network 56 that provides broadcast and unicast channels for eMBMS services;

The terminal 58 is configured to receive, determine, parse the service statement and the media stream, and play the media stream to the user.

Preferred embodiment two

6 is a block diagram of a service claim system module according to a preferred embodiment 2 of the present invention. As shown in FIG. 6, the service claim management system 52 includes:

The service statement generating module 520 is configured to generate a service statement, and add a data block about the SA file version in the SA data structure according to the foregoing requirement, to identify the current latest SA file version;

The service statement distribution module 522 is configured to distribute the service statement in the unicast or broadcast channel, and add another data block in the file distribution (FDT) according to the above requirements, and identify the SA version number and all metadata distributed in the broadcast channel. The ID of the fragment and its corresponding version number.

Based on the technical solution provided by the foregoing embodiments, a flow chart of the process of updating the SA file by the terminal side and the network side is provided. To better understand the interaction process between the terminal side and the network side, the following describes a preferred embodiment:

Step 1. The service statement generation module 520 adds a data block about the SA file version to the SA data structure, and is used to identify the current latest SA file version.

Step 2: The service statement distribution module 522 adds another data block in the FDT based on the FLUTE file transfer protocol, and identifies the SA version number distributed in the broadcast channel and the ID of all the metadata fragments and their corresponding version numbers.

Step 3: The service statement distribution module 522 broadcasts the SA and the foregoing data block to the terminal through the SACH broadcast channel.

Step 4: If a certain metadata fragment in the SA is updated, the service statement generation module 520 updates the SA file version data block, and notifies the service statement distribution module 522 to update the data of the version number of the metadata fragment in the FDT. The block then broadcasts the updated SA file and data block to the terminal through the SACH broadcast channel.

Step 5: If the metadata fragment is related to program play, the program stream management module broadcasts the special SA file containing the metadata fragment information to the terminal through the program stream broadcast channel.

Step 6: The terminal obtains the corresponding data block by parsing the FLUTE FDT table in the SACH broadcast channel, that is, the latest version of the SA file and the ID and version number of all the metadata fragments.

Step 7: If the terminal is compared with the locally stored SA version, the SA is not stored locally, or the SA version is too old, the terminal continues to receive the complete SA file in the SACH broadcast channel and overwrites the local.

Step 8: If the terminal compares with the SA version stored locally, and the SA version is stored locally, but is not up-to-date, the ID of the metadata fragment to be updated is determined by comparing the ID and version number of the metadata fragment, and the service is transmitted through the unicast channel. Declaring a unicast module requesting a metadata fragment, there are three main cases:

Add a metadata fragment. If the ID is not stored locally, it will be added.

Update the metadata fragment. If the ID is stored locally, but the version is old, it is updated.

Delete the metadata fragment. If the local is stored, but the ID is not found in the broadcast channel, it is deleted.

Step 9: The service announcement unicast module receives the request message of the terminal, and sends the metadata fragment required by the terminal to the terminal through the unicast channel response message.

Step 10: The terminal receives the unicast response message and overwrites the local metadata fragment information.

Step 11: If the terminal is playing a program, the updated SA information (including only the metadata fragment related to the playback) is received from the program stream broadcast channel, and the local storage is updated. After the end of the playback, the above steps 6 to 10 are updated. Metadata fragment information.

The above technical solution provided by the preferred embodiment of the present invention improves terminal processing efficiency and reduces power consumption.

Preferred embodiment three

FIG. 7 is a structural diagram of a terminal module according to a preferred embodiment 3 of the present invention. As shown in FIG. 7, the terminal 58 includes:

The FDT receiving module 580 is configured to receive the FDT of the file transfer protocol from the broadcast channel, assemble and parse, and obtain the corresponding data block, that is, the latest version of the SA file and the ID and version number of all the metadata fragments;

The service statement judgment receiving module 582 is configured to compare with the locally stored SA version: if the SA is not stored locally, or the SA version is too old, the terminal needs to receive the complete SA file in the SACH broadcast channel and overwrite the local; The SA version is stored, but not the latest one. The ID of the metadata fragment to be updated is determined by comparing the ID and version number of the metadata fragment, and the metadata fragment is requested by the service declaration distribution module through the unicast channel.

The service announcement broadcast receiving module 584 receives the SA file based on the FLUTE;

The service declaration/sharding parsing module 586 parses the SA or its fragments according to the data structure definition;

The service announcement/sharding update module 588 updates the SA or fragment to the local storage;

The fragment unicast request module 590 determines the fragment to be updated, and requests a fragment from the service claim distribution module in a unicast manner;

The slice unicast receiving module 592 receives the unicast response and parses the message body;

The playing module 594 receives the updated SA information (including only the metadata fragment related to the playback) from the program stream broadcast channel if the terminal is playing the program, and updates the local storage.

Preferred embodiment four

FIG. 8 is a flowchart of service distribution according to a preferred embodiment 4 of the present invention. As shown in FIG. 8, the method includes the following steps:

Step S800: The administrator manually configures SA related information on the management portal, and after the configuration is successful, the notification service statement generation module generates the SA;

Step S802: The service statement generation module adds a data block about the SA file version in the SA data structure, and is used to identify the current latest SA file version.

Step S804, the service statement distribution module adds another data block in the FLUTE FDT, and identifies the SA version number and the ID of all the metadata fragments and the corresponding version number distributed in the broadcast channel;

Step S806: The service announcement distribution module broadcasts the SA and the foregoing data block to the terminal through the SACH broadcast channel.

Preferred embodiment five

FIG. 9 is a flowchart of service update according to a preferred embodiment 5 of the present invention. As shown in FIG. 9, the method includes the following steps:

Step S900: The administrator modifies the SA related information in the management portal, and after the modification succeeds, the notification service statement generation module updates the SA;

Step S902: If a certain metadata fragment in the SA is updated, the service statement generation module updates the SA file version data block;

Step S904, the service statement distribution module updates the data block of the version number of the metadata fragment in the FDT;

Step S906: The service announcement distribution module broadcasts the SA and the data block to the terminal through the SACH broadcast channel. If the metadata fragment is related to the program play, the program stream management module passes the special SA file containing the metadata fragment information through the program. The streaming broadcast channel is broadcast to the terminal.

Preferred embodiment six

FIG. 10 is a flowchart of implementing a terminal according to a preferred embodiment 6 of the present invention. As shown in FIG. 10, the method includes the following steps:

Step S1000: The terminal obtains the corresponding data block by parsing the FLUTE FDT table in the SACH broadcast channel, that is, the latest version of the SA file and the ID and version number of all the metadata fragments;

Step S1002: If the terminal compares with the locally stored SA version, the local SA is not stored, or the SA version is too old, the terminal continues to receive the complete SA file in the SACH broadcast channel and overwrites the local;

Step S1004: If the terminal stores the SA version locally, but is not the latest one, the ID of the metadata fragment to be updated is determined by comparing the ID and the version number of the metadata fragment to the service through the unicast channel. Declaring a unicast module requesting a metadata fragment;

Step S1006: The service announcement unicast module receives the request message of the terminal, and sends the metadata fragment required by the terminal to the terminal by using a unicast channel response message.

Step S1008: The terminal receives the unicast response message, and overwrites the local metadata fragment information.

Step S1010: If the terminal is playing a program, the updated SA information (including only the metadata fragment related to the playback) is received from the program stream broadcast channel, and the local storage is updated. After the playback ends, the other metadata fragment information is updated through the above steps.

Preferred embodiment seven

11 is a message flow diagram according to a preferred embodiment 7 of the present invention. As shown in FIG. 11, the method includes the following steps:

Step S1100: The administrator edits or changes the SA information on the management portal editing system 50. After the editing succeeds, the management portal updates the information to the database;

Step S1102, the management portal editing system 50 notifies the business declaration management system 52 to generate or update the SA;

Step S1104, the service statement management system 52 generates or updates the SA, and distributes the SA to the terminal 58 through the broadcast channel;

In step S1106, if the SA associated with the program being played is changed, the management portal editing system 50 notifies the program stream management system 54 to update the SA fragmentation information.

Step S1108, the program stream and the changed SA fragmentation information are distributed to the terminal 58 through the broadcast channel.

In step S1110, the terminal 58 first receives the file sub-publishing FDT and determines how to perform the SA update.

Step S1112: If the terminal 58 compares with the locally stored SA version, the SA is not stored locally, or the SA version is too old, the terminal 58 continues to receive the complete SA file in the SACH broadcast channel and overwrites the local.

Step S1114: If the terminal 58 compares with the locally stored SA version, and the SA version is stored locally, but is not the latest one, the ID of the metadata fragment to be updated is determined by comparing the ID and the version number of the metadata fragment, and the unicast channel is used. The business statement management system requests a metadata fragment.

Step S1116: The service announcement management system receives the request message of the terminal 58 to determine which metadata fragments are required by the terminal 58;

Step S1118, the service claim management system sends the metadata fragment required by the terminal 58 to the terminal 58 through the unicast channel 104 response message;

Step S1120: The terminal 58 receives the unicast channel message or the SA information of the broadcast channel (including the SA fragment information received from the broadcast program stream channel), and overwrites the local SA or metadata fragment information.

In summary, the embodiment of the present invention achieves the following technical effects: in the related art, the terminal can determine whether to update the locally stored SA file to increase the terminal overhead only after parsing the information included in the SA. Ensure that the SA file is received and parsed by the network side only when the SA version is not the latest version. This effectively reduces the processing pressure of the terminal, improves processing efficiency, and saves power.

In another embodiment, a software is provided that is configured to perform the technical solutions described in the above embodiments and preferred embodiments.

In another embodiment, a storage medium is further provided, wherein the software includes the above-mentioned software, including but not limited to: an optical disk, a floppy disk, a hard disk, an erasable memory, and the like.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order. It is to be understood that the objects so used are interchangeable, where appropriate, so that the embodiments of the invention described herein can be carried out in a sequence other than those illustrated or described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

As described above, the method, device, and system for updating an SA file provided by the embodiment of the present invention have the following beneficial effects: in the related art, the terminal can determine whether to update the local only after parsing the information included in the SA. The problem of increasing the terminal overhead caused by the stored SA file ensures that the SA receives and parses the SA file sent by the network only when the SA version is not the latest version, thereby effectively reducing the processing pressure of the terminal, improving the processing efficiency, and saving. Electricity.

Claims

A method for updating a service statement SA file, including:

The terminal obtains the first version information corresponding to the current version SA file delivered by the network side device;

Determining, by the terminal, whether the first version information is consistent with the second version information corresponding to the local SA file;

Whether to perform update processing on the local SA file is determined according to the judgment result.
The method according to claim 1, wherein determining whether to perform update processing on the local SA file according to the determination result comprises:

When the determination result indicates that the determination is consistent, the terminal prohibits updating the local SA file.
The method according to claim 1, wherein before the terminal determines whether the first version information and the second version information are consistent, the method further includes:

The terminal acquires a first version number corresponding to the metadata segment in the current version SA file.
The method according to claim 3, wherein determining whether to perform update processing on the local SA file according to the determination result comprises:

When the determination result indicates that the determination is inconsistent, the terminal determines a specified metadata piece whose second version number corresponding to the metadata fragment in the local SA file is inconsistent with the first version number;

The terminal requests, by the network side device, incremental update information of the specified metadata segment;

The terminal receives the incremental update information from the network side device, and updates the specified metadata segment in the local SA file by using the incremental update information.
The method according to claim 4, wherein the receiving, by the terminal, the incremental update information from the network side device comprises: the terminal receiving the incremental update information through a unicast channel.
The method according to claim 1, wherein determining whether to perform update processing on the local SA file according to the determination result comprises:

When the judgment result indicates inconsistency, the terminal receives the SA file from the network side through the broadcast channel;

The local SA file is updated according to the SA file received from the network side.
The method according to any one of claims 1 to 6, further comprising:

When the SA file is not stored locally, the terminal acquires the current version SA file;

The terminal stores the current version SA file locally.
An update processing system for a business statement SA file, comprising:

The network side device is configured to deliver the first version information corresponding to the current version SA file to the terminal;

The terminal is configured to determine whether the first version information is consistent with the second version information corresponding to the local SA file, and determine whether to perform update processing on the local SA file according to the determination result.
The system according to claim 8, wherein said network side device is arranged to add said first version information in a one-way file transfer protocol FLUTE file sub-publishing FDT and to transmit said FDT to said terminal.
The system according to claim 9, wherein the network side device is further configured to synchronously receive the first version information in the FDT when the first version information is added in an SA data structure.
An update processing device for a service statement SA file is applied to a terminal, including:

Obtaining a module, configured to obtain first version information corresponding to a current version SA file delivered by the network side device;

a determining module, configured to determine whether the first version information is consistent with the second version information corresponding to the local SA file;

The determining module is configured to determine whether to perform update processing on the local SA file according to the determination result.
The apparatus of claim 11 wherein said determining module comprises:

The prohibiting unit is configured to prohibit updating the local SA file when the judgment result indication is consistent.
The apparatus according to claim 11, wherein the obtaining module is configured to acquire a first version number corresponding to the metadata segment in the current version SA file.
The apparatus of claim 13, wherein the determining module comprises:

a determining unit, configured to: when the determination result indicates an inconsistency, determine a specified metadata piece whose second version number corresponding to the metadata fragment in the local SA file is inconsistent with the first version number;

a requesting unit, configured to request, from the network side device, incremental update information of the specified metadata segment;

a receiving unit, configured to receive the incremental update information from the network side device;

And an update unit configured to update the specified metadata fragment in the local SA file with the incremental update information.
The device according to claim 14, wherein

The receiving unit is further configured to: when the determination result indicates inconsistency, receive the SA file from the network side through the broadcast channel;

The updating unit is further configured to update the local SA file according to the SA file received from the network side.