WO2023246599A1

WO2023246599A1 - Service resource delivery method of non-contracted content provider, and video service system

Info

Publication number: WO2023246599A1
Application number: PCT/CN2023/100238
Authority: WO
Inventors: 陶长标; 刘群
Original assignee: 中兴通讯股份有限公司
Priority date: 2022-06-22
Filing date: 2023-06-14
Publication date: 2023-12-28
Also published as: CN117319689A

Abstract

The present application discloses a service resource delivery method of a non-contracted content provider, and a video service system. The video service system comprises a multicast service management platform and a multicast server which are deployed on a service layer, and a multicast agent deployed on a terminal. The method comprises: in response to a service request from the terminal, a CDN service node provides a unicast service (S210); the multicast service management platform intercepts the service request by means of a DPI device, and performs service analysis on the service request according to a preset filtering strategy to obtain service information (S220); when the service information satisfies a preset switching condition, the multicast service management platform sends multicast switching information to the multicast server, so that the multicast server creates a multicast channel (S230); the multicast service management platform obtains multicast channel information and sends a multicast switching instruction and the multicast channel information to the terminal, so that the terminal starts the multicast agent (S240); and the multicast agent joins a multicast group of the multicast channel (S250).

Description

Service resource distribution method and video service system for non-contracted content providers

Cross-references to related applications

This application is filed based on a Chinese patent application with application number 202210712657.5 and a filing date of June 22, 2022, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated into this application as a reference.

Technical field

The present application relates to the field of communication technology, and in particular to a service resource distribution method and video service system of a non-contracted content provider.

Background technique

With the rapid development of the Internet and smart mobile devices, OTT (Over The Top) technology has been rapidly and widely used in the operator market. Currently, in the operator market, OTT technology is facing important problems: a large number of users use OTT live broadcast services, but they all use unicast to provide services, which consumes a large amount of CDN (Content Delivery Network content distribution network) resources and network bandwidth. Causes tidal phenomena, seriously affecting operators' daily operations and costs.

Contents of the invention

This application provides a service resource distribution method and video service system for non-contracted content providers.

In the first aspect, embodiments of the present application provide a service resource distribution method for non-contracted content providers, which is applied to a video service system. The video service system includes a multicast service management platform and a multicast server deployed at the service layer and a deployment For the multicast agent of the terminal, the method includes: in response to the service request from the terminal, the CDN service node provides unicast service; the multicast service management platform hijacks all the data through DPI (Deep Packet Inspection, deep packet inspection) equipment. The service request is processed, and service analysis is performed on the service request according to the preset filtering policy to obtain service information; when the service information meets the preset switching conditions, the multicast service management platform sends multicast switching information to the group multicast server, so that the multicast server creates a multicast channel; the multicast service management platform obtains multicast channel information from the multicast server and sends a multicast switching instruction and the multicast channel information to the terminal , so that the terminal starts the multicast agent; the multicast agent joins the multicast group of the multicast channel.

In the second aspect, embodiments of the present application provide a video service system, including a multicast service management platform and a multicast server deployed at the service layer, and a multicast agent deployed at the terminal, wherein: the multicast service management platform is configured This is: hijacking the service request sent by the terminal to the dispatch center through the DPI device, and performing business analysis on the unicast service provided by the CDN service node to the terminal according to the preset filtering policy to obtain service information; when the service information meets the preset Switching conditions: send multicast switching information to the multicast server so that the multicast server creates a multicast channel; obtain multicast channel information from the multicast server and send a multicast switching instruction and the multicast channel information to the terminal, so that the terminal starts the multicast agent; the multicast server is configured to create a multicast channel and send multicast channel information to the multicast service management platform; the multicast agent It is configured to perform authentication and registration with the multicast service management platform, and after successful registration, the multicast group that joins the multicast channel and the multicast service management platform are kept hot-active through heartbeat messages.

In the third aspect, embodiments of the present application provide a video service method, which is applied to multicast service management in a video service system. Management platform, the method includes: hijacking the service request sent by the terminal to the dispatch center through the DPI device, and performing business analysis on the service request according to the preset filtering policy to obtain service information; when the service information meets the preset switching conditions , sending multicast switching information to the multicast server, so that the multicast server creates a multicast channel; obtaining multicast channel information from the multicast server and sending a multicast switching instruction and the multicast channel information to the multicast server. terminal, so that the terminal starts the multicast agent.

In a fourth aspect, embodiments of the present application provide a computer-readable storage medium that stores computer-executable instructions, and the computer-executable instructions are used to cause a computer to execute the steps described in the third embodiment. video service method.

Description of the drawings

Figure 1 is an architectural block diagram of a video service system provided by an embodiment of the present application;

Figure 2 is a flow chart of a service resource distribution method for a non-contracted content provider provided in Embodiment 1 of the present application;

Figure 3 is a flow chart of a service resource distribution method for a non-contracted content provider provided in Embodiment 2 of the present application;

Figure 4 is a flow chart of a service resource distribution method for a non-contracted content provider provided in Embodiment 3 of the present application;

Figure 5 is a flow chart of a service resource distribution method for a non-contracted content provider provided in Embodiment 4 of the present application;

Figure 6 is a flow chart of a service resource distribution method for a non-contracted content provider provided in Embodiment 5 of the present application;

Figure 7 is a flow chart of a service resource distribution method for a non-contracted content provider provided in Embodiment 6 of the present application;

Figure 8 is a flow chart of single-multicast switching of non-contracted CP live broadcast services provided by the embodiment of the present application;

Figure 9 is a flow chart of multicast distribution of non-subscription CP provided by the embodiment of this application;

Figure 10 is a flow chart of a video service method provided by an embodiment of the present application;

Figure 11 is a flow chart of a video service method provided by another embodiment of the present application;

Figure 12 is a flow chart of a video service method provided by yet another embodiment of the present application.

Detailed ways

This section will describe the embodiments of the present application in detail. Some embodiments of the present application are shown in the accompanying drawings. The function of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand the application. Each technical feature and the overall technical solution, however, cannot be understood as limiting the scope of protection of this application.

In the description of this application, if there is a description of first and second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number or implicit indication of the indicated technical features. The sequence relationship of the indicated technical features.

In the description of this application, unless otherwise explicitly limited, words such as setting, installation, and connection should be understood in a broad sense. Those skilled in the art can reasonably determine the meaning of the above words in this application based on the content of the technical solution.

In the IPTV (Internet Protocol Television or Interactive Personal TV) system, IPTV live multicast saves a lot of CDN resources and bandwidth, while in OTT live broadcast services, services are currently provided in the form of unicast. Therefore, operators hope to combine OTT live broadcast with new multicast technology to provide OTT multicast capabilities to cope with the high concurrency and large traffic requirements of OTT live broadcast, especially to cope with the traffic tide of various real-time live broadcasts and Internet celebrity live broadcasts. is very effective

Compared with traditional IPTV services, OTT services have a different characteristic: in addition to traditional CPs (Content Provider content providers), OTT content providers also have a large number of Internet CPs. These Internet CPs are basically useless to operators. They are all non-contracted content provider users. What they need is the operator’s content distribution channel, which can be provided at any time. Ultimately the audience provides the service. For non-subscriber users, operators cannot pre-allocate service resources and configure scheduling strategies to such users according to traditional video service methods.

The embodiments of this application provide a service resource distribution method and video service system for non-contracted content providers, which can reduce the traffic tidal impact effect of operators, reduce operation and maintenance costs, and provide differentiated business services for different users.

The embodiments of the present application will be further described below with reference to the accompanying drawings.

Referring to Figure 1, Figure 1 is an architectural block diagram of a video service system provided by an embodiment of the present application. The video service system mainly includes the multicast service system deployed at the service layer, the BIER network system deployed at the network layer, and the multicast agent deployed at the terminal. The multicast service system includes DPI equipment, multicast service management platform and multicast server. The entire network deploys one set on the system side to centrally manage multicast services; the Bier network system includes BFIR (Bit-Forward Ingress Router, ingress router), BFER (Bit-Forward Egress Router, egress router) and BIER controller. :

Multicast service management platform: main functions include configuring and managing preset switching conditions of unicast switching groups; managing multicast agents, including login, heartbeat, etc.; maintaining multicast channel lists; sending multicasts to multicast servers and multicast agents Switching instructions; interact with the BIER controller to manage multicast channels, BFER, BFIR correspondence, etc.;

Multicast server: obtains multicast channel information, creates multicast physical channels; unicast to multicast and transmits multicast media data; supports unicast retransmission of multicast agents, etc.;

Bier network system: Based on the original BIER network, a BIER controller is added, which is responsible for communicating with the multicast service system to synchronize the information of the BIER equipment; among them,

Terminal: Deployed with a multicast agent, it obtains multicast channel description information from the multicast server and parses the corresponding multicast information; supports the terminal to join the multicast group; receives multicast data packets from BFER; supports multicast to unicast; supports unicast Play retransmission requests, etc.

Referring to Figure 2, one embodiment of the present application provides a service resource distribution method for a non-contracted content provider, which is applied to the video service system shown in Figure 1. The service resource distribution method may include but is not limited to steps S210 to Step S250, wherein:

Step S210: In response to the service request from the terminal, the CDN service node provides unicast service;

Step S220: The multicast service management platform hijacks the service request through the DPI device, and performs business analysis on the service request according to the preset filtering policy to obtain service information;

Step S230: When the service information meets the preset switching conditions, the multicast service management platform sends multicast switching information to the multicast server, so that the multicast server creates a multicast channel;

Step S240: The multicast service management platform obtains multicast channel information from the multicast server and sends a multicast switching instruction and the multicast channel information to the terminal, so that the terminal starts the multicast agent. ;

Step S250: The multicast agent joins the multicast group of the multicast channel.

By conducting business analysis on the terminal's service request, and judging whether to preset switching conditions based on the service information obtained, if the conditions are met, the multicast server will create a multicast channel and notify the terminal to start the multicast agent, and the multicast agent will join the multicast channel. Multicast groups provide centralized multicast capabilities, which can reduce the operator's traffic tidal impact effect, reduce operation and maintenance costs, provide differentiated business services for different users, and can also save the operating costs of high-traffic users and improve user satisfaction. Spend.

Referring to Figure 3, in the above service resource distribution method, in step S210, in response to the service request from the terminal, the CDN service node provides unicast service, which may include but is not limited to steps S310 to step S320:

Step S310: The dispatch center obtains the service request from the terminal and dispatches the service request to the CDN service node according to the load balancing scheduling policy;

Step S320: The CDN service node provides unicast service.

It is understandable that before the preset switching conditions are met, the video service system still uses unicast to provide services to avoid wasting multicast resources.

In the above service resource distribution method, the method further includes: when the terminal starts the multicast agent, the multicast agent performs authentication and registration with the multicast service management platform.

It should be noted that the multicast agent performs authentication and registration with the multicast service management platform to ensure the legitimacy of the multicast agent. After successful registration, the multicast agent joins the multicast group of the multicast channel.

In the above service resource distribution method, after the multicast agent joins the multicast group of the multicast channel, the hot-active processing between the multicast agent and the multicast service management platform is maintained through heartbeat messages.

Referring to Figure 4, the above service resource distribution method may also include steps S410 to S430:

Step S410: The multicast service management platform obtains the BFER information of the terminal reported by the multicast agent and synchronizes it to the BIER controller;

Step S420: The BIER controller updates the distribution link of the BIER network according to the BFER information, and allocates the BFIR entrance address to the multicast service management platform;

Step S430: The multicast service management platform updates the mapping relationship between the multicast channel, BFIR, and BFER according to the BFIR entry address.

It can be understood that after the multicast agent joins the multicast group, it will report the BFER information of the terminal to the multicast service management platform. The multicast service management platform will synchronize the BFER information to the BIER controller and tell the BIER controller that there is a new terminal. Users need to join the distribution link of the BIER network to update the distribution link of the BIER network and update the mapping relationship between multicast channels, BFIR, and BFER, so that terminal users who newly join the BIER network can obtain multicast media streams normally.

Referring to Figure 5, in the above service resource distribution method, the BIER controller in step S420 updates the distribution link of the BIER network according to the BFER information, which may include but is not limited to steps S510 to step S520:

Step S510: The BIER controller synchronizes the BFER information to the corresponding BFIR;

Step S520: The BFIR updates and distributes the BitString string, floods it to all network nodes of the BIER network, and updates the distribution link.

Referring to Figure 6, the above service resource distribution method may also include steps S610 to S640:

Step S610: The multicast service management platform synchronizes the mapping relationship to the multicast server;

Step S620: The multicast server obtains the unicast media stream from the CDN service node, converts the unicast media stream into a multicast media stream, sends the multicast media stream to the corresponding BFIR and through the group The broadcast service management platform sends a multicast service activation notification to the multicast agent;

Step S630: The BFIR distributes the multicast media stream to the corresponding BFER in the BIER network according to the distribution link;

Step S640: After receiving the multicast service startup notification, the multicast agent obtains the multicast media stream from the BFER.

Referring to Figure 7, the above service resource distribution method may also include steps S710 to S720:

Step S710: The multicast agent synchronizes the frames of the multicast media stream and the frames of the unicast media stream;

Step S720: When the frames of the multicast media stream are completely synchronized with the frames of the unicast media stream, the multicast agent sends a stop unicast notification to the terminal so that the terminal stops obtaining data from the CDN service node. Unicast media streaming.

The above service resource distribution method may also include:

The multicast agent responds to the multicast service request of the terminal and converts the multicast media stream into a unicast media stream concurrently. Send it to the terminal for decoding and playing.

In the above service resource distribution method, the multicast server obtains the unicast media stream from the CDN service node, including one of the following two methods:

The multicast server pulls the unicast media stream to the CDN service node; or

The CDN service node pushes the unicast media stream to the multicast server.

In the above service resource distribution method, the service information includes at least one of the number of users, bandwidth occupancy, and bandwidth change trend; the preset switching condition correspondingly includes at least one of the following:

The number of users is greater than the first preset value; or

The bandwidth usage is greater than the second preset value; or

The bandwidth occupancy rate continues to increase within a preset time period.

It can be understood that when the number of users is greater than the first preset value, that is, a certain number of terminals obtain services through unicast, a large amount of network bandwidth of CDN resources is consumed, which is likely to cause a tidal phenomenon and seriously affect the operator's performance. Daily operation and cost; similarly, when the bandwidth usage is greater than the second preset value, it is easy to cause a tidal phenomenon, so it is necessary to switch from unicast service to multicast service to reduce the operator's traffic tidal impact effect and reduce operation and maintenance costs. , to provide differentiated business services for different users; similarly, the bandwidth occupancy continues to rise within the preset time period, indicating that a tidal phenomenon may have been caused, so it is necessary to switch from unicast service to multicast service to reduce the operator's traffic tide shock effect.

In addition, embodiments of the present application also provide a video service system, including a multicast service management platform and a multicast server deployed at the service layer, and a multicast agent deployed at the terminal, wherein:

The multicast service management platform is set to: hijack the service request sent by the terminal to the dispatch center through the DPI device, and perform business analysis on the unicast service provided by the CDN service node to the terminal according to the preset filtering policy to obtain service information ; When the service information meets the preset switching conditions, send multicast switching information to the multicast server so that the multicast server creates a multicast channel; obtain multicast channel information from the multicast server and send the multicast Broadcast the switching instruction and the multicast channel information to the terminal, so that the terminal starts the multicast agent;

The multicast server is configured to create a multicast channel and send multicast channel information to the multicast service management platform;

The multicast agent is configured to perform authentication and registration with the multicast service management platform. After successful registration, the multicast group that joins the multicast channel and the multicast service management platform maintain hot-alive processing through heartbeat messages. .

It can be understood that for other functions and functions of each component in the video service system provided by the embodiment of the present application, reference can be made to the various embodiments provided in the above-mentioned Figures 1 to 7. The video service system provided by the embodiment of the present application is consistent with the above-mentioned implementation. The service resource distribution method provided in the example belongs to the same invention, so the other functions and functions of each component in the video service system will not be described again here.

Next, the service resource distribution method of the present application will be explained with reference to Figures 8 and 9.

Referring to Figure 8, Figure 8 is a flow chart of single-multicast switching of non-contracted CP live broadcast services provided by an embodiment of the present application, including the following steps:

S800: Configure unicast and multicast switching strategies uniformly on the multicast service management platform; it can be understood that the switching strategy includes preset switching conditions, and the preset switching conditions may be that the number of users is greater than the first preset value and/or The bandwidth usage is greater than the second preset value;

S801: After the user successfully logs in to the terminal and authenticates, the user initiates a service request, such as a live broadcast viewing request;

S802: The terminal's service request is sent to the dispatch center, such as GSLB (Global Server Load Balance, global service load balancing);

S803: The dispatch center dispatches the service request to the CDN service node according to the load balancing dispatch policy;

S804-1: The terminal that initiates the service request from the CDN service node first provides the service in unicast mode;

S804-2: At the same time, the terminal's service request is hijacked and split through the DPI device deployed on the GSLB;

S805: The DPI device sends the hijacked service request to the multicast service management platform;

S806: The multicast service management platform performs service analysis on the terminal's service request and obtains service information;

S807: When the preset switching conditions between unicast and multicast are reached, the multicast service management platform initiates multicast switching;

S808: The multicast service management platform sends multicast switching information to the multicast server;

S809: After receiving the multicast switching information, the multicast server creates a multicast channel for this live broadcast and returns the multicast channel information to the multicast service management platform;

S810: The multicast service management platform sends a multicast switching instruction to the terminal, along with multicast channel information;

S811: After receiving the multicast switching instruction, the terminal starts the multicast agent;

S812: The multicast agent performs authentication and registration with the multicast service management platform to ensure its legitimacy;

S813: After successful registration, join the multicast group of this multicast channel according to the multicast channel information;

S814: The multicast agent and the multicast service management platform maintain hot-active processing through heartbeat messages.

Referring below to Figure 9, Figure 9 is a multicast distribution flow chart of a non-signed CP, including the following steps:

S901: After the multicast server receives the multicast switching instruction from the multicast service management platform, it creates a multicast channel;

S902: The multicast agent joins the multicast group of the multicast channel after receiving the multicast switching instruction from the multicast service management platform;

S903: The multicast agent reports the BFER information of the terminal to the multicast service management platform;

S904: The multicast service management platform synchronizes BFER information to the BIER controller and tells the BIER network that there are new terminals that need to be added to the distribution link of the BIER network;

S905: The BIER controller allocates the BFIR entry address according to the BIER network conditions and policies and returns it to the multicast service management platform;

S906: The BIER controller synchronizes the BFER information to the corresponding BFIR;

S907-1: BFIR updates and distributes the BS string, floods it to all network nodes in the BIER network, and refreshes the distribution link;

S907-2: After receiving the BFIR entry address returned by the BIER controller in response, the multicast service management platform updates the mapping relationship between the multicast channel, BFIR, and BFER;

S908: The multicast service management platform synchronizes the mapping relationship to the multicast server;

S909: The multicast server pulls the unicast media stream to the CDN service node, or the CDN service node actively pushes the unicast media stream to the multicast server;

S910: The multicast server converts the unicast media stream into a multicast media stream;

S911: The multicast server sends the multicast media stream to the corresponding BFIR;

S911-1: At the same time, the multicast server sends a multicast service startup notification to the multicast service management platform;

S911-2: The multicast service management platform sends a multicast service startup notification to the multicast agent;

S912: BFIR distributes the multicast media stream in the BIER network, and the BIER network distributes it to the corresponding BFER according to the policy;

S913: After receiving the multicast service startup notification, the multicast agent obtains the multicast media stream from the BFER;

S914: The multicast agent ensures the synchronization of the frames of the original unicast media stream and the frames of the subsequent multicast media stream through unicast compensation and other technologies to prevent problems such as frame loss and black screen when users watch;

S915: When the frames of the unicast media stream are completely synchronized with the frames of the multicast media stream, send a stop unicast notification to notify the terminal to stop the unicast service;

S916: The terminal stops pulling unicast streams from the CDN service node, stops the unicast service, and switches to the multicast service;

S917: The terminal requests multicast service through the multicast proxy;

S918: The multicast agent converts the multicast media stream into a unicast media stream;

S919: The multicast agent returns the media stream to the terminal for decoding and playback.

It can be understood that BFIR (Bit Index Explicit Replication, Bit Index Explicit Replication) technology provides a stateless multicast forwarding mechanism. According to the multicast first node BIER (Bit-Forward Ingress Router, ingress routing) The multicast receiver BFER (Bit-Forward Egress Router, egress router) information generates a forwarding BS (BitString string), which is distributed according to the bit operation of the BS, while the intermediate node BFR (Bit-Forward Router, forwarding router) does not need to maintain any The multicast flow forwarding status information (Group, Ingress, Egress), and the BIER link status library are generated by the BIER extension flooding of the IGP (ISIS/OSPF) protocol.

The embodiments of this application provide video services through centralized multicast in a non-subscription scenario based on Bier technology. Under non-signed CP, in order to facilitate unified management and reduce resource consumption on the client, the server performs centralized unified management of the timing and strategy of multicast distribution:

1) For the user's playback request, the service request is hijacked through the optical splitter DPI (Deep Packet Inspection) and mirrored to the multicast service management platform. The multicast service management platform follows the preset filtering policy (for example, based on CPID, service type, user request protocol type, etc.) to conduct business analysis and collect statistics on hot content information, and then determine whether to perform single-multicast switching based on the preset switching strategy (such as user volume, bandwidth usage, bandwidth change trend, etc.).

2) When the preset switching conditions for single-multicast switching are reached, the multicast service system notifies the client to perform single-multicast streaming switching on the one hand, and interacts with the BIER controller on the other hand to obtain the BFER information corresponding to the user. Synchronized to the BIER controller, the BIER controller notifies the BFIR to update the BS (BitString) series and refresh the distribution link information, and the multicast server converts the unicast media stream into a multicast media stream and pushes it to the BFIR.

3) After receiving the multicast media stream, BFIR forwards it in the BIER network according to the BS string value;

4) The terminal joins the multicast group of the multicast channel of this CP, pulls the multicast media stream from the BFER, and converts it into a unicast media stream through the multicast agent, and the terminal decodes and plays it.

In the existing video service system, operators only need to upgrade the relevant router equipment in the network to support Bier technology, deploy a new multicast service management platform and multicast server on the server, and install a multicast agent in the terminal. , low cost and easy to manage.

The service resource distribution method provided by the embodiment of this application can be applied to new Internet high-traffic live broadcast services in non-contracted CP scenarios, such as Internet celebrity live broadcasts, conference live broadcasts, product live broadcasts, etc. In the scenario of a large number of non-contracted live broadcast CPs on the Internet, due to the sporadic business characteristics anytime and anywhere and the large number of concurrent requests from users, it will have a very large impact on the traffic of the operator's network, and the tidal phenomenon is very obvious. In order to reduce the impact of new live broadcast services on existing network services and networks, existing unicast distribution is optimized to a combination of unicast and multicast. Based on the real-time situation of user volume, the video service system automatically decides whether to use unicast or multicast. At the same time, multicast distribution based on Bier technology can completely decouple applications and transmission, achieving true multicast forwarding at the network layer without paying attention to its business characteristics, further reducing the cost of multicast maintenance and management, and improving multicast distribution. Efficiency, so the solution of the embodiment of this application provides centralized multicast capabilities in non-contracted CP scenarios, can obtain very efficient and stable multicast distribution performance, and ensures that large operators can introduce Internet high-traffic services, effectively reducing operation and maintenance costs. , broaden the operator's video business scope, provide differentiated business services for different users, increase new revenue, and at the same time save the operating costs of high-traffic users and improve user satisfaction.

Referring to Figure 10, an embodiment of the present application also provides a video service method, which is applied to the video service system shown in Figure 1 In the multicast service management platform, the method includes but is not limited to step S1010 to step S1030:

Step S1010: Hijack the service request sent by the terminal to the dispatch center through the DPI device, and conduct business analysis on the service request according to the preset filtering policy to obtain service information;

Step S1020: When the service information meets the preset switching conditions, send the multicast switching information to the multicast server so that the multicast server creates a multicast channel;

Step S1030: Obtain multicast channel information from the multicast server and send a multicast switching instruction and the multicast channel information to the terminal, so that the terminal starts the multicast agent.

Referring to Figure 11, the video service method also includes steps S1110 to S1120:

Step S1110: Obtain the BFER information of the terminal reported by the multicast agent and synchronize it to the BIER controller, so that the BIER controller updates the distribution link of the BIER network according to the BFER information;

Step S1120: Obtain the BFIR entry address assigned by the BIER controller, and update the mapping relationship between the multicast channel, BFIR, and BFER according to the BFIR entry address.

Referring to Figure 12, the video service method also includes steps S1210 to S1220:

Step S1210: Synchronize the mapping relationship to the multicast server, so that the multicast server obtains the unicast media stream from the CDN service node and converts the unicast media stream into a multicast media stream;

Step S1220: Obtain the multicast service startup notification sent by the multicast server, and forward the multicast service startup notification to the multicast agent, so that the multicast agent obtains the multicast service from the BFER. Media streaming.

It can be understood that the functions and effects of the video service method provided by the embodiments of the present application can be referred to the respective embodiments provided in the above-mentioned Figures 1 to 9. The video service method provided by the embodiments of the present application is the same as the service resources provided by the above-mentioned embodiments. The distribution method belongs to the same invented communication, so the functions and functions of the video service method will not be described again here.

Embodiments of the present application also provide a computer-readable storage medium that stores computer-executable instructions, and the computer-executable instructions are used to cause the computer to execute the video service method described in the above embodiments, for example The method steps S1010 to S1030 in FIG. 10 , the method steps S1110 to S1120 in FIG. 11 , and the method steps S1210 to S1220 in FIG. 12 are executed.

Embodiments of the present application include a service resource distribution method, a video service system, a video service method and a computer-readable storage medium of a non-contracted content provider. According to the solution provided by the embodiment of the present application, the service request of the terminal is analyzed, and whether the switching condition is preset is determined based on the obtained service information. If it is met, the multicast server creates a multicast channel and notifies the terminal to start the multicast agent. , the multicast agent joins the multicast group of the multicast channel to provide centralized multicast capabilities, which can reduce the operator's traffic tidal impact effect, reduce operation and maintenance costs, provide differentiated business services for different users, and can also save large traffic operating costs for users and improve user satisfaction.

Those of ordinary skill in the art can understand that all or some steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and appropriate combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit . Such software may be distributed on computer-readable media, which may include computer storage media or non-transitory media and communication media or transitory media. As is known to those of ordinary skill in the art, the term computer storage media includes volatile and nonvolatile media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, Removable and non-removable media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disk, DVD or other optical disk storage, magnetic cassettes, magnetic tape, disk storage or other magnetic storage devices, or may be used Storage period any other medium that contains the desired information and can be accessed by a computer. Additionally, it is known to those of ordinary skill in the art that communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media .

Claims

A service resource distribution method for non-contracted content providers, applied to a video service system. The video service system includes a multicast service management platform and a multicast server deployed at the service layer and a multicast agent deployed at the terminal. Methods include:

In response to service requests from terminals, CDN service nodes provide unicast services;

The multicast service management platform hijacks the service request through the DPI device, and performs business analysis on the service request according to the preset filtering policy to obtain service information;

When the service information meets the preset switching conditions, the multicast service management platform sends multicast switching information to the multicast server, so that the multicast server creates a multicast channel;

The multicast service management platform obtains multicast channel information from the multicast server and sends a multicast switching instruction and the multicast channel information to the terminal, so that the terminal starts the multicast agent;

The multicast agent joins the multicast group of the multicast channel.
The service resource distribution method according to claim 1, wherein in response to a service request from a terminal, the CDN service node provides a unicast service, including:

The dispatch center obtains the service request from the terminal and dispatches the service request to the CDN service node according to the load balancing scheduling policy;

The CDN service node provides unicast service.
The service resource distribution method according to claim 1, further comprising: when the terminal starts the multicast agent, the multicast agent performs authentication registration with the multicast service management platform.
The service resource distribution method according to claim 3, wherein after the multicast agent joins the multicast group of the multicast channel, the multicast agent and the multicast service management platform maintain hot communication through heartbeat messages. Live processing.
The service resource distribution method according to claim 1, wherein the video service system further includes a BIER controller deployed at the network layer, the BIER controller communicates with the multicast service management platform, the method further includes :

The multicast service management platform obtains the BFER information of the terminal reported by the multicast agent and synchronizes it to the BIER controller;

The BIER controller updates the distribution link of the BIER network according to the BFER information, and allocates the BFIR entrance address to the multicast service management platform;

The multicast service management platform updates the mapping relationship between the multicast channel, BFIR, and BFER according to the BFIR entry address.
The service resource distribution method according to claim 5, wherein the BIER controller updates the distribution link of the BIER network according to the BFER information, including:

The BIER controller synchronizes the BFER information to the corresponding BFIR;

The BFIR updates and distributes the BitString string and floods it to all network nodes in the BIER network to update the distribution link.
The service resource distribution method according to claim 5, further comprising:

The multicast service management platform synchronizes the mapping relationship to the multicast server;

The multicast server obtains the unicast media stream from the CDN service node, converts the unicast media stream into a multicast media stream, sends the multicast media stream to the corresponding BFIR and manages the multicast service through the The platform sends a multicast service activation notification to the multicast agent;

The BFIR distributes the multicast media stream to the corresponding BFER in the BIER network according to the distribution link;

After receiving the multicast service startup notification, the multicast agent obtains the multicast media stream from the BFER.
The service resource distribution method according to claim 7, further comprising:

The multicast agent synchronizes frames of the multicast media stream and frames of the unicast media stream;

When the frames of the multicast media stream are completely synchronized with the frames of the unicast media stream, the multicast agent sends a stop unicast notification to the terminal, so that the terminal stops obtaining unicast media from the CDN service node flow.
The service resource distribution method according to claim 8, further comprising:

In response to the multicast service request of the terminal, the multicast agent converts the multicast media stream into a unicast media stream and sends it to the terminal for decoding and playback.
The service resource distribution method according to claim 1, wherein the multicast server obtains the unicast media stream from the CDN service node in one of the following two ways:

The multicast server pulls the unicast media stream to the CDN service node; or

The CDN service node pushes the unicast media stream to the multicast server.
The service resource distribution method according to claim 1, wherein the service information includes at least one of the number of users, bandwidth occupancy, and bandwidth change trend; the preset switching condition correspondingly includes at least one of the following:

The number of users is greater than the first preset value; or

The bandwidth usage is greater than the second preset value; or

The bandwidth occupancy rate continues to increase within a preset time period.
A video service system, including a multicast service management platform and a multicast server deployed at the service layer, and a multicast agent deployed at the terminal, wherein:

The multicast service management platform is set to: hijack the service request sent by the terminal to the dispatch center through the DPI device, and perform business analysis on the unicast service provided by the CDN service node to the terminal according to the preset filtering policy to obtain service information ; When the service information meets the preset switching conditions, send multicast switching information to the multicast server so that the multicast server creates a multicast channel; obtain multicast channel information from the multicast server and send the multicast Broadcast the switching instruction and the multicast channel information to the terminal, so that the terminal starts the multicast agent;

The multicast server is configured to create a multicast channel and send multicast channel information to the multicast service management platform;

The multicast agent is configured to perform authentication and registration with the multicast service management platform. After successful registration, the multicast group that joins the multicast channel and the multicast service management platform maintain hot-alive processing through heartbeat messages. .
A video service method, applied to a multicast service management platform in a video service system, the method includes:

Hijack the service request sent by the terminal to the dispatch center through the DPI device, and conduct business analysis on the service request according to the preset filtering policy to obtain service information;

When the service information meets the preset switching conditions, send the multicast switching information to the multicast server so that the multicast server creates a multicast channel;

Obtain multicast channel information from the multicast server and send a multicast switching instruction and the multicast channel information to the terminal, so that the terminal starts the multicast agent.
The video service method according to claim 13, wherein the method further includes:

Obtain the BFER information of the terminal reported by the multicast agent and synchronize it to the BIER controller, so that the BIER controller updates the distribution link of the BIER network according to the BFER information;

Obtain the BFIR entrance address assigned by the BIER controller, and update the multicast frequency based on the BFIR entrance address. The mapping relationship between Tao, BFIR and BFER.
The video service method according to claim 14, further comprising:

Synchronize the mapping relationship to the multicast server, so that the multicast server obtains the unicast media stream from the CDN service node and converts the unicast media stream into a multicast media stream;

Obtain the multicast service startup notification sent by the multicast server, and forward the multicast service startup notification to the multicast agent, so that the multicast agent obtains the multicast media stream from the BFER.
A computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause a computer to execute the video service method according to any one of claims 13 to 15.