KR102209783B1 - Method for providing streaming data packet through streaming server and node linking with base station, and node using the same - Google Patents

Abstract

The present invention relates to a method of providing a streaming data packet, and in particular, using a base station interworking node and a streaming providing server that can be connected to at least one base station, using an MPEG Media Transport (MMT) technology and A method for providing streaming data packets through a streaming providing server and a base station interworking node that adaptively provides streaming content according to the situation, and a base station interworking node therefor, and is connected to at least one base station according to an embodiment of the present invention A base station interworking node, wherein the base station interworking node analyzes an IP header of a streaming data packet transmitted from a streaming providing server to a terminal, and analyzes frame compression type information of video data included in the streaming data packet; And a media processing module that selectively removes the streaming data packet based on the analyzed frame compression type information according to the congestion state of the base station.

Description

A method of providing streaming data packets through a streaming providing server and a base station linking node, and a base station linking node for this {METHOD FOR PROVIDING STREAMING DATA PACKET THROUGH STREAMING SERVER AND NODE LINKING WITH BASE STATION, AND NODE USING THE SAME}

The present invention relates to a method for providing a streaming data packet, and more particularly, adapts a streaming data packet transmitted from a streaming providing server to a terminal according to a traffic situation of a base station by using a base station interworking node that can be connected to at least one base station. The present invention relates to a method for providing streaming data packets through a streaming providing server that can be removed locally, a base station interworking node, and a base station interworking node therefor.

The content described in this section merely provides background information on the present embodiment and does not constitute the prior art.

With the appearance of various video services in the recent Internet environment, the demand for high-definition live broadcasting is gradually increasing. In addition, in recent years, attempts have been made to provide various video services according to a streaming service method.

Streaming service means transmitting content such as video or audio from a server to a terminal through a network such as the Internet. Streaming is called because the transmitted data is treated as if water flows. The server divides the video into packets so that it can be sent to the network, and the terminal collects the packets again, restores them to their original form, and plays them. At this time, playback and packet reception occur simultaneously, and a series of related packets is called a stream, and a set of packets is called streaming data.

In addition, MPEG-2 TS (Transport System) has been mainly used for media transmission in various industries such as terrestrial and satellite digital broadcasting, DMB, and IPTV since standardization. Recently, media storage in digital video cameras or Blu-ray equipment has been The field of use is expanding, such as being used for. However, the recent network environment is rapidly changing, and new requirements such as multimedia transmission technology in various heterogeneous network environments are required. Accordingly, a new technology standard for providing various contents and services in various types of advanced network environments is required, and accordingly, MPEG Media Transport (MMT) technology is being developed.

However, as demand for various media services has recently occurred, there is a problem that traffic is overloaded due to an increase in demand for high-definition media content services and an increase in demand when events such as sports events occur.

In addition, in order to solve this problem, there is a problem in that the server must have contents having various image quality.

Korean Patent Publication No. 2014-0125274, published on October 28, 2014 (Name: Dynamic queue management method and apparatus in broadcasting system)

The present invention has been proposed to solve the above-described conventional problems, and in particular, a service method, apparatus, and system for providing streaming content adaptively according to traffic volume using MPEG Media Transport (MMT) technology. There is a purpose to provide.

However, the object of the present invention is not limited to the above object, and other objects that are not mentioned will be clearly understood from the following description.

As the above-described problem solving means, in a base station interworking node connected to at least one base station, the base station interworking node receives a header of a streaming data packet transmitted from a streaming providing server providing a streaming service of content to a terminal through the base station. An analysis module for analyzing and analyzing frame compression type information of video data included in the streaming data packet; And a media processing module configured to select and remove video data included in the streaming data packet based on the analyzed frame compression type information according to the amount of traffic of the base station to adjust the frame rate of the content. It is possible to provide a base station interworking node.

In the base station interworking node according to a preferred embodiment of the present invention, the streaming data packet may be an MPEG Media Transport (MMT) packet.

In the base station interworking node according to a preferred embodiment of the present invention, the streaming data packet may be transmitted in units of one frame.

In the base station interworking node according to a preferred embodiment of the present invention, the media processing module may remove at least a part of video data of B or P type among I, B, and P type frame compression types at a predetermined ratio.

In the base station interworking node according to a preferred embodiment of the present invention, the analysis module may analyze the frame compression type information from the ToS (Type of Service) field of the header.

In a base station interworking node according to a preferred embodiment of the present invention, the media processing module determines a frame rate according to the amount of traffic of the base station, and the video data based on the analyzed frame compression type information according to the frame rate. You can set the removal rate of.

In the base station interworking node according to a preferred embodiment of the present invention, a monitoring module for monitoring the amount of traffic of the base station may be further included.

In addition, the present invention provides a means for solving the above-described problems, comprising: checking frame compression type information of video data in a streaming providing server; Generating header information including the frame compression information; And generating a streaming data packet by combining the generated header information with the video data.

In a method for providing a streaming data packet according to a preferred embodiment of the present invention, the streaming data packet may be an MPEG Media Transport (MMT) packet.

In the method for providing a streaming data packet according to an exemplary embodiment of the present invention, in the generating of the header information, the frame compression type information may be recorded in the ToS field of the IP header.

In addition, the present invention is a means of solving the above-described problems, in a method for processing a streaming data packet of a base station interworking node connected to at least one base station, transmitting from a streaming providing server providing a streaming service of content through the base station to a terminal Receiving a to-be-streamed data packet; Analyzing frame compression type information in the header of the received streaming data packet; And adjusting the frame rate of the content by selectively removing video data included in the received streaming data packet based on the analyzed frame compression type based on the analyzed frame compression type according to the traffic volume of the base station. It can provide a method for processing streaming data packets through.

In the streaming data packet processing method according to the preferred embodiment of the present invention, the streaming data packet may be an MPEG Media Transport (MMT) packet.

In a streaming data packet processing method according to a preferred embodiment of the present invention, the streaming data packet includes video data in units of one frame.

In the streaming data packet processing method according to an exemplary embodiment of the present invention, the removing step may remove B or P type video data from among I, B, and P type frame compression types at a predetermined ratio.

In the streaming data packet processing method according to an exemplary embodiment of the present invention, the analyzing may analyze the frame compression type information from the ToS (Type of Service) field of the header.

The streaming data packet processing method according to an exemplary embodiment of the present invention includes: determining a frame rate according to the amount of traffic of the base station; And setting a removal rate of the video data based on the frame compression type according to the frame rate.

In addition, the present invention can provide a computer-readable recording medium in which a program for executing the streaming data packet processing method through the base station interlocking node is recorded as a means of solving the above-described problems.

In addition, the present invention can provide a computer program recorded in a computer-readable recording medium by implementing the streaming data packet processing method described above.

The present invention has been proposed to solve the above-described conventional problem, and in particular, interworking with a streaming service server and a base station that uses MPEG Media Transport (MMT) technology and provides streaming content adaptively according to traffic volume. A method of providing streaming data packets through a node, and a base station interworking node for this can be provided.

For this reason, the present invention solves the problem that traffic is overloaded at the base station due to an increase in demand for high-definition media content services and an event such as a sports event, which increases rapidly when various media service demands occur, thereby providing efficient services. , Content consumers' QoE (Quality of Experience) may increase.

In addition, various effects other than the above-described effects may be directly or implicitly disclosed in the detailed description according to an embodiment of the present invention to be described later.

1 is a block diagram schematically illustrating a configuration of a system to which a method for providing streaming data packets through a streaming providing server and a base station interworking node according to an embodiment of the present invention is applied.
2 is a block diagram showing a main configuration of a base station interworking node according to an embodiment of the present invention.
3 is a block diagram showing a main configuration of a streaming providing server according to an embodiment of the present invention.
4 is a diagram illustrating a header structure of a streaming data packet according to an embodiment of the present invention.
5 is a flowchart illustrating a service execution process in a system to which a method for providing streaming data packets through a streaming providing server and a base station interworking node is applied.
6 is a flowchart illustrating a method of providing a streaming data packet in a streaming providing server according to an embodiment of the present invention in a system to which the streaming providing server and the method of providing a streaming data packet through a base station interworking node are applied.
7 is a flowchart illustrating a method of processing a streaming data packet in a base station interworking node according to an embodiment of the present invention in a system to which the above-described method of providing streaming data packets through a streaming providing server and a base station interworking node is applied.
FIG. 8 is a graph showing streaming data packets provided to a terminal according to a traffic amount on a time axis when a streaming data packet according to embodiments of the present invention is provided to a terminal.

In order to clarify the features and advantages of the problem solving means of the present invention, the present invention will be described in more detail with reference to specific embodiments of the present invention shown in the accompanying drawings.

However, in the following description and the accompanying drawings, detailed descriptions of known functions or configurations that may obscure the subject matter of the present invention will be omitted. In addition, it should be noted that the same components are indicated by the same reference numerals as possible throughout the drawings.

The terms or words used in the following description and drawings should not be construed as being limited to their usual or dictionary meanings, and the inventor may appropriately define the concept of terms for describing his or her invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that there is. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all the technical ideas of the present invention, and thus various alternatives that can be substituted for them at the time of application It should be understood that there may be equivalents and variations.

In addition, terms including ordinal numbers such as first and second are used to describe various elements, and are only used for the purpose of distinguishing one element from other elements, and to limit the elements. Not used. For example, without departing from the scope of the present invention, a second component may be referred to as a first component, and similarly, a first component may be referred to as a second component.

In addition, when a component is referred to as being "connected" or "connected" to another component, it means that it is logically or physically connected or can be connected. In other words, it should be understood that a component may be directly connected or connected to another component, but another component may exist in the middle, or may be indirectly connected or connected.

In addition, terms used in the present specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In addition, terms such as "comprises" or "have" described herein are intended to designate the presence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification. It is to be understood that the above other features, or the possibility of the presence or addition of numbers, steps, actions, components, parts, or combinations thereof, are not preliminarily excluded.

In addition, embodiments within the scope of the present invention include computer-readable media having or transferring computer-executable instructions or data structures stored in the computer-readable media. Such computer-readable media may be any available media accessible by a general purpose or special purpose computer system. By way of example, such computer readable media may be in the form of RAM, ROM, EPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage, or computer executable instructions, computer readable instructions, or data structures. It may include, but is not limited to, physical storage media such as any other media that may be used to store or deliver certain program code means, and may be accessed by a general purpose or special purpose computer system. .

In the description and claims that follow, a “network” or “communication network” is defined as one or more data links that enable the transfer of electronic data between computer systems and/or modules. When information is transmitted or provided to a computer system through a network or other (wired, wireless, or a combination of wired or wireless) communication connection, this connection can be understood as a computer-readable medium. Computer-readable instructions include, for example, instructions and data that cause a general purpose computer system or a special purpose computer system to perform a specific function or group of functions. Computer-executable instructions may be, for example, assembly language, or even binary, intermediate format instructions such as source code.

In addition, the present invention relates to a personal computer, a laptop computer, a handheld device, a multiprocessor system, a microprocessor-based or programmable consumer electronics, a network PC, a minicomputer, a mainframe computer, a mobile phone, a PDA, a pager. It can be implemented in a network computing environment having various types of computer system configurations including (pager) and the like.

The invention may also be practiced in a distributed system environment where both local and remote computer systems linked through a network with a wired data link, a wireless data link, or a combination of wired and wireless data links perform tasks. In a distributed system environment, program modules may be located in local and remote memory storage devices.

Prior to describing the embodiments of the present invention, it is assumed that the technical background of the present invention is MPEG MMT (MPEG Media Transport) technology. However, this is only an example for convenience of description, and the present invention is not necessarily applied to MMT technology.

Hereinafter, the meaning of the terms described in the present specification may be defined as follows.

A content component or media component is defined as a media of a single type or a subset of the media of a single type, for example , A video track, movie subtitles, or an enhancement layer of video.

Content is defined as a set of content components, and may be, for example, a movie or a song.

Hereinafter, a structure of a system to which a method for providing streaming content according to an embodiment of the present invention is applied will be described first.

1 is a block diagram schematically showing the configuration of a system to which a method for providing streaming data packets through a streaming providing server and a base station interworking node according to an embodiment of the present invention is applied.

Referring to FIG. 1, a system 100 according to an embodiment of the present invention passes through a plurality of terminals 10, an access network 20, a core network 50, and an Internet network 60 to a plurality of terminals 10. It may be configured to include a streaming providing server 70 that provides a streaming data service. In particular, the system 100 according to an embodiment of the present invention includes a streaming providing server 70 located in the Internet network 60 and a base station interworking node 40 capable of interworking with at least one base station 30 located in the access network 20. There is a technical feature to include.

When describing each component in more detail, first, the terminal 10 is a streaming providing server 70 through a communication network, that is, an access network 20, a core network 50, and an Internet network 60 according to a user's manipulation. It refers to a user's device that can transmit and receive information to and from. The terminal 10 may perform voice or data communication through the access network 20, the core network 50, and the Internet network 60. For this, the terminal 10 of the present invention may include a browser for transmitting and receiving information, a memory storing programs and protocols, and a microprocessor for calculating and controlling by executing various programs. In particular, the terminal 10 according to an embodiment of the present invention plays and processes streaming data transmitted from the streaming providing server 70, particularly MPEG media transport streaming data (hereinafter, referred to as'streaming data'). It may mean a terminal 10 capable of.

The terminal 10 according to an embodiment of the present invention may be implemented in various forms. For example, the terminal 10 described in this specification is a mobile terminal such as a smart phone, a tablet PC, a personal digital assistant (PDA), a portable multimedia player (PMP), an MP3 player, etc. , A fixed terminal such as a smart TV or a desktop computer may be used.

In the terminal 10 of the present invention, the transformation of the portable device is very diverse according to the convergence trend of the digital device, so it is not possible to enumerate all of it, but a unit of the same level as the above-mentioned units is the terminal according to the present invention. It can be applied as (10), and in particular, the streaming provided from the streaming service server 70 and transmits and receives information through the access network 20, the core network 50, and the Internet network 60 Any device that can reproduce and process data can be used as the terminal 10 according to an embodiment of the present invention.

The access network 20 supports the access of the terminal 10 to the core network 50, and may support the access of the terminal 10 to the core network 50 according to a wired or wireless communication method. The access network 20 may include a plurality of base stations 30. Here, the base station 30 may be a concept including a plurality of base stations such as, for example, BS (Base Station), BTS (Base Transceiver Station), NodeB, eNodeB, and the like, a base station and a base station controller (BSC), It may be a concept including all base station controllers such as a radio network controller (RNC). Here, the base station 30 divides the digital signal processing unit and the wireless signal processing unit, which were integrally implemented in the base station, into a digital unit (hereinafter referred to as DU) and a wireless unit (hereinafter referred to as RU), A plurality of RUs (not shown) may be installed in each of a plurality of areas, and a plurality of RUs (not shown) may be connected to a centralized DU (not shown).

The core network 50 constituting the communication network together with the access network 20 may serve to connect the access network 20 and an external network, for example, the Internet network 60.

As described above, the core network 50 is a network system that performs major functions for mobile communication services such as mobility control and switching between access networks 20, and circuit switching or packet switching. And manages and controls the packet flow in the network. In addition, the core network 50 may manage mobility between frequencies, and may play a role of interworking with the access network 20 and the traffic in the core network 50 and other networks, for example, the Internet network 60. The core network 50 further includes a Serving GateWay (SGW), a PDN GateWay (PGW), a Mobile Switching Center (MSC), a Home Location Register (HLR), a Mobile Mobility Entity (MME), and a Home Subscriber Server (HSS). It can also be configured.

In addition, the Internet network 60 refers to a common open communication network, that is, a public network in which information is exchanged according to the TCP/IP protocol, and is connected to the streaming providing server 70 and from the streaming providing server 70 to the terminal. It can play a role of supporting the streaming data transmitted to (10) to be provided to the terminal 10 through the core network 50 and the access network 20. On the other hand, the terminal 10 may transmit various commands for receiving streaming data to the streaming providing server 70 through the access network 20, the core network 50, and the Internet network 60. However, the present invention is not limited thereto, and the streaming providing server 70 may be located in the core network 50 and may be operated by the same operator as the operator operating the core network 50 or different operators.

In addition, the network of the present invention has been described as an example that is implemented with the access network 20, the core network 50, and the Internet network 60, but is not limited thereto, and other widely known or future developments in addition to the above-described communication method. Any form of communication can be included.

The streaming providing server 70 may serve to deliver the streaming data packet according to an embodiment of the present invention to the terminal 10 according to the request of the terminal 10.

In addition, although not shown in the drawings, the system 100 of the present invention may further include a content providing server (not shown), and the streaming providing server 70 is a video transmitted from a content providing server (not shown). The data may be converted into a streaming data packet and transmitted to the terminal 10.

Here, the streaming providing server 70 may receive video data in units of frames, check frame compression type information of the input video data, and generate header information including the checked frame compression type information. In addition, a streaming data packet may be generated by combining the header information and the video data. Here, the header may be an IP header.

Here, the streaming data packet is packetized by dividing video data/audio data into a predetermined unit and then transmitted in a streaming method. In particular, one streaming data packet may be composed of video data in units of one frame. For example, the streaming data packet may be formed by combining an IP header with an MMT packet generated in units of one frame. In this case, the frame compression type information may be recorded in the ToS field of the IP header.

The base station interworking node 40 is located between the access network 20 and the core network 50, and can monitor the amount of traffic between the access network 20 and the core network 50, and can be transmitted to the access network according to the amount of traffic. The frame rate of the frame can be determined, and frame compression type information can be analyzed in the header of the streaming data packet received from the streaming providing server 70, specifically the IP header, and the access network based on the frame compression type according to the frame rate. Video data included in the streaming data packet to be transmitted can be removed. Here, the streaming data packet of the present invention may mean MPEG media transport streaming data.

The main configurations and more specific operation methods of the base station interworking node 40 and the streaming providing server 70 constituting the present invention as described above will be described later, and mounted on each device according to an embodiment of the present invention. The processor can process program instructions for executing the method according to the present invention. In one implementation example, the processor may be a single-threaded processor, and in another implementation example, the processor may be a multithreaded processor. Furthermore, the processor is capable of processing instructions stored in a memory or a storage device.

Hereinafter, the main configuration and operation method of the base station interworking node 50 according to an embodiment of the present invention will be described.

2 is a block diagram showing a main configuration of a base station interworking node according to an embodiment of the present invention.

2, the base station interworking node 40 according to the embodiment of the present invention may be configured to include an interface unit 41, an analysis module 42, a media processing module 43, and a monitoring module 44. have.

Hereinafter, each configuration of the present invention will be described in more detail. First, the interface unit 41 supports transmission and reception of information. In particular, the interface unit 41 transmits and receives information to and from a manager device (not shown), and may receive various information for performing the streaming data packet processing method of the present invention and transmit it to the media processing module 43. For example, information on a traffic amount related to a congestion state of a base station of the present invention, information on a frame rate to be determined according to the traffic amount, or frame compression type information may be transmitted from a manager device (not shown). In addition, the interface unit 41 may transmit response information to the management device (not shown). Here, the manager device (not shown) may be a streaming providing server 70, or a separate server having a different operating entity from the streaming providing server 70.

In addition, the interface unit 41 according to an embodiment of the present invention is a terminal in which the streaming providing server 70 is connected to the base station 30 while being located between the base station 30 and the core network 50 of the access network 20. The streaming data packet transmitted to (10) may be collected and transmitted to the media processing module 43. Further, according to the control of the media processing module 43, the streaming data packet that has not been removed among the streaming data packets may be controlled to be transmitted to the terminal 10.

The analysis module 42 may analyze the header of the streaming data packet transmitted from the streaming providing server to the terminal, and analyze frame compression type information of the video data included in the streaming data packet.

For example, the analysis module 42 may analyze the frame compression type information from the ToS (Type of Service) field of the header recorded by the streaming providing server 70. A detailed description of this will be described in FIG. 4.

The media processing module 43 selects and removes the video data included in the streaming data packet received from the streaming providing server 70 based on the frame compression type information analyzed by the analysis module 42 according to the traffic volume of the base station. You can adjust the frame rate of the content. Here, when the streaming data packet includes video data in units of one frame, and frame compression type information for the video data in units of one frame is recorded in the ToS field of the header, the removal of the video data is performed in units of packets. Will come true.

In this case, the media processing module 43 may determine a frame rate according to the amount of traffic of the base station, and set the removal rate of the video data based on the frame compression type information analyzed by the analysis module 42 according to the frame rate. .

For example, when the frame rate of the content streaming service from the streaming providing server 70 is basically 30FR (Frame Rate), the media processing module 43 is checked by the system administrator or monitored by the monitoring module 44 below. The frame rate can be adjusted to 20FR or 15FR by selectively removing video data according to the amount of traffic. In particular, by removing the video data of the B or P type frame compression type from the I, B, P type frame compression types analyzed by the analysis module 42, decoding and playback are normally performed in the terminal, but only the frame rate is adjusted. Make it possible.

The monitoring module 44 may monitor the traffic volume of the base station 30. The monitoring module 44 may be included in the configuration of the base station interworking node 40 according to the system administrator's selection.

In the above, the base station interworking node 40 according to an embodiment of the present invention has been described.

Hereinafter, a main configuration and operation method of the streaming providing server 70 according to an embodiment of the present invention will be described.

3 is a block diagram showing a main configuration of a streaming providing server according to an embodiment of the present invention.

Referring to FIG. 3, the server communication unit 71 serves to support transmission and reception of information with the terminal 10. For example, the server communication unit 71 may receive a request to transmit streaming data from the terminal 10 and transmit the streaming data to the terminal 10. Here, the streaming data may be composed of one or more streaming data packets. The server communication unit 71 may sequentially transmit a plurality of streaming data packets to the terminal 10 through one channel according to a streaming method. In addition, when the server communication unit 71 transmits and receives information to and from a content providing server (not shown), the server communication unit 71 transmits a request for providing specific content to the content providing server (not shown), and the content providing server (not shown) You can also receive video data transmitted from the city).

The server controller 72 is a component that performs overall control of the streaming providing server 70 according to an embodiment of the present invention, and may be configured to include a data packet generation module 72a and a data packet transmission module 72b. .

Here, the data packet generation module 72a may play a role of generating a streaming data packet. In particular, receiving video data from the server communication unit 71 in units of frames, checking frame compression type information of the input video data, generating header information including the confirmed frame compression type information, and generating header information and Streaming data packets can be created by combining the input video data.

In addition, when the data packet generation module 72a generates header information, frame compression type information may be recorded in the ToS (Type of Service) field of the header.

Also, the data packet generation module 72a may play a role of generating MMT streaming data. For example, it is possible to support a process of converting content delivered from a content providing server (not shown) into a streaming data format supporting the MMT protocol. In this case, the data packet generation module 72a may generate MMT-based streaming data by determining a block size of the MPU and configuring each MPU according to the determined block size of the MPU when converting MMT streaming data. In addition, by inserting the playback time information for each MPU, the terminal 10 may perform a necessary process so that the synchronization is played back.

In addition, the data packet transmission module 72b may perform a role of transmitting the streaming data to the terminal 10 requesting the streaming data. In this case, when the streaming data requested by the terminal 10 is composed of a plurality of streaming data packets, it may play a role of controlling the terminal 10 to sequentially receive them.

The server storage unit 73 may perform a role of storing and managing various types of information required to perform an operation of the streaming providing server 70 according to an embodiment of the present invention.

The main configuration and operation method of the live streaming providing server 70 according to the embodiment of the present invention have been described above.

4 is a diagram illustrating a header structure of a streaming data packet according to an embodiment of the present invention.

Referring to FIG. 4, here, the header may be an IP header. The Type of Service field (hereinafter, the ToS field) 505 may mean frame compression type information of video data included in a streaming data packet according to an embodiment of the present invention. This is one of the features of the present invention.

Specifically, the ToS field 505 can express content related to the normal quality of service, but in most cases it is set only as a default value because high-quality services cannot be provided in an actual communication environment. However, in the present invention, the streaming providing server 70 may input frame compression type information of video data in the ToS field 505 of the header 500. The base station interworking node 40 can analyze the frame compression type information of the video data, which is the ToS field 505 information of the header 500 of the received streaming data packet, and the frame determined based on the analyzed information according to the amount of traffic. Depending on the rate, video data can be selectively removed in units of frames.

The structure diagram of the header 505 of the streaming data packet according to the embodiment of the present invention has been described above.

The streaming providing server 70 according to an embodiment of the present invention has the same configuration as a conventional web server or network server in terms of hardware. However, in terms of software, a program module implemented through a language such as C, C++, Java, Visual Basic, and Visual C is included.

Meanwhile, a memory mounted in each device of the present invention stores information within the device. In one implementation, the memory is a computer-readable medium. In one implementation, the memory may be a volatile memory unit, and in another implementation, the memory may be a non-volatile memory unit. In one implementation, the storage device is a computer-readable medium. In various different implementations, the storage device may include, for example, a hard disk device, an optical disk device, or some other mass storage device.

In addition, the term'~module' used in an embodiment of the present invention refers to a software component, and'~module' performs certain roles. As an example,'~module' refers to components such as software components, object-oriented software components, class components, and task components, processes, functions, properties, procedures, and sub It includes routines, segments of program code, drivers, data, databases, data structures, tables, arrays, and variables. In addition, the components and functions provided in the'~modules' may be combined into a smaller number of components and'~modules' or further separated into additional components and'~modules'.

Although the present specification and drawings describe exemplary device configurations, the functional operations and implementations of the subject described in this specification may be implemented with other types of digital electronic circuits, or the structures disclosed herein and structural equivalents thereof. It may be implemented with computer software, firmware, or hardware, or may be implemented by a combination of one or more of them. Implementations of the subject matter described in this specification are one or more computer program products, that is, one relating to computer program instructions encoded on a tangible program storage medium for execution by or for controlling the operation of a device according to the invention It can be implemented as the above module. The computer-readable medium may be a machine-readable storage device, a machine-readable storage substrate, a memory device, a composition of materials that affect a machine-readable radio wave signal, or a combination of one or more of them.

Hereinafter, a method of providing a streaming data service in a streaming contents service system according to an embodiment of the present invention will be described.

5 is a flowchart illustrating a service execution process in a system to which a method for providing streaming data packets through a streaming providing server and a base station interworking node is applied.

Referring to FIG. 5, the base station interworking node 40 may monitor the amount of traffic at the base station from time to time (S101). Specifically, the monitored information may be received through an external monitoring device, or the amount of traffic may be checked by the monitoring module 40 of the base station interworking node 40.

Accordingly, the base station interworking node 40 may determine a frame rate of streaming data to be transmitted to the terminal 10 according to the amount of traffic (S103).

In this state, the terminal 10 may request a streaming data packet from the streaming providing server 70 (S105).

Accordingly, the streaming providing server 70 may generate a streaming data packet as described in the streaming data packet providing method (S107). The streaming providing server 70 may transmit the generated streaming data packet to the terminal 10, and the streaming data packet may pass through the base station interworking node before reaching the terminal 10 (S109).

The base station interworking node 40 may analyze frame compression type information of video data, which is information on the ToS field 505 of the header 500 of the received streaming data packet (S111). Accordingly, the base station interworking node 40 may determine whether to remove the video data included in the streaming data packet according to a frame rate determined based on the analyzed information according to the amount of traffic (S113). The base station interworking node 40 may remove the video data determined to be removed, and transmit a streaming data packet including the unremoved video data to the terminal 10 (S115 and S117). Here, when the video data included in the streaming data packet is video data in units of one frame, the corresponding streaming data packet is dropped according to the removal of the video data.

In this case, the removal of the video data may be performed at a certain rate for each specific content, that is, for each flow through which the specific content is transmitted. To this end, the base station interworking node 40 may further check the flow information of the received streaming data packet, and remove the video data in a frame unit from the streaming data packet transmitted in a specific flow at a certain rate.

As described above, a method of providing streaming data packets through a streaming providing server and a base station interworking node according to an embodiment of the present invention has been described.

Hereinafter, a method of providing a streaming data packet through a streaming providing server according to an embodiment of the present invention will be described.

6 is a flowchart illustrating a method of providing a streaming data packet in a streaming providing server according to an embodiment of the present invention in a system to which the streaming providing server and the method of providing a streaming data packet through a base station interworking node are applied.

Referring to FIG. 6, the streaming providing server 70 may receive video data in a frame unit (S201). In this case, the video data may be an MMT packet packetized in a frame unit. In addition, the streaming providing server 70 may check frame compression type information of the input video data (S203).

Accordingly, the streaming providing server 70 may generate header information 500 of the streaming data packet including the confirmed frame compression type information (S205). In particular, the streaming providing server 70 may record frame compression type information in the ToS field 505 of the header 500 when generating the header information 500. In this case, the header may be an IP header.

Accordingly, the streaming providing server 70 may generate a streaming data packet by combining the header information 500 of the generated streaming data packet and the input video data (S207). In particular, the streaming data packet may be an MPEG Media Transport (MMT) packet.

Finally, the streaming providing server 70 may transmit the generated streaming data packet to the terminal 10 (S209).

In the above, a method of providing a streaming data packet through a streaming providing server according to an embodiment of the present invention has been described.

Hereinafter, a method of processing a streaming data packet in a base station interworking node according to an embodiment of the present invention will be described.

7 is a flowchart illustrating a method of processing a streaming data packet in a base station interworking node according to an embodiment of the present invention in a system to which the above-described method of providing streaming data packets through a streaming providing server and a base station interworking node is applied.

Referring to FIG. 7, the base station interworking node 40 may monitor the amount of traffic at the base station from time to time (S301). Specifically, the monitored information may be received through an external monitoring device, or the amount of traffic may be checked by the monitoring module 40 of the base station interworking node 40.

Accordingly, the base station interworking node 40 may determine a frame rate of streaming data to be transmitted to the terminal 10 according to the amount of traffic (S303). For example, if the frame rate of streaming data transmitted from the streaming providing server 70 is basically 30FR (Frame Rate), the media processing module 43 is checked by the system administrator or monitored by the monitoring module 44 below. The frame rate can be determined as 20FR or 15FR depending on the amount of traffic.

In addition, the base station interworking node 40 may receive the streaming data packet transmitted from the streaming providing server (S305). In particular, the streaming data packet may be transmitted to the base station interworking node 40 in units of 1 frame. In addition, the streaming data packet may be an MPEG Media Transport (MMT) packet.

Accordingly, the base station interworking node 40 may analyze frame compression type information of video data, which is information of the ToS field 505 of the header 500 of the received streaming data packet (S307). In this case, the header may be an IP header.

Accordingly, the base station interworking node 40 may determine whether to remove the streaming data packet according to a frame rate determined based on the analyzed information according to the amount of traffic (S309). The base station interworking node 40 may remove the streaming data packet determined to be removed and transmit the unremoved streaming data packet to the terminal 10 (S311 and S313). For example, among the I, B, and P type frame compression types analyzed by the base station interworking node 40, the frame rate of the content provided to the terminal is reduced to 20 FR by removing the streaming data packet of the B or P type frame compression type. Or it can be delivered in 15FR.

In the above, a method of processing a streaming data packet in a base station interworking node according to an embodiment of the present invention has been described.

FIG. 8 is a graph showing streaming data packets provided to a terminal according to a traffic amount on a time axis when a streaming data packet according to embodiments of the present invention is provided to a terminal. In FIG. 8, it is assumed that the streaming data packet is composed of video data in units of one frame, and therefore, when the video data in units of frames is removed, the corresponding streaming data packet is deleted.

Referring to FIG. 8, (a) is a graph showing the streaming data packet received from the base station interworking node 40 on the time axis as the streaming providing server 70 transmits the streaming data packet to the terminal 10. Yes. In (b) and (c), the streaming data packet transmitted to the terminal 10 after the streaming data packet is removed based on the frame compression type according to the frame rate determined according to the amount of traffic in the base station interlocking node 40 on the time axis. This is an example of the graph shown in.

For example, it is assumed that the frame rate of streaming data transmitted from the streaming providing server 70 is basically 30FR (Frame Rate). Accordingly, it is assumed that the graph shown on the time axis of the streaming data packet transmitted from the streaming providing server 70 is (a). If the traffic amount checked by the base station interworking node 40 is less than the traffic amount set as the congestion state, the base station interworking node 70 may not remove the received streaming data packet. Accordingly, the base station interworking node 40 may transmit the streaming data packet to the terminal 10 in a received state. As another example, if the traffic amount checked by the base station interworking node 40 is greater than the traffic amount set as the first-stage congestion state, the base station interworking node 70 may remove the received streaming data packet. That is, the base station interworking node 40 may determine the frame rate as 20FR according to the confirmed traffic volume, and among the I, B, P type frame compression types analyzed in the header 500 of the streaming data packet, the P type The frame compression type streaming data packet can be removed and transmitted to the terminal. In this case, the graph on the time axis of the streaming data packet received from the terminal 10 may be (b). Finally, another example is, if the traffic amount identified by the base station interlocking node 40 is greater than the traffic amount set as the second-stage congestion state, the base station interlocking node 70 may remove the received streaming data packet. . That is, the base station interworking node 40 may determine the frame rate as 15FR according to the amount of confirmed traffic, and among the I, B, P type frame compression types analyzed in the header 500 of the streaming data packet, the P type and The streaming data packet of type B frame compression type can be removed and transmitted to the terminal. In this case, the graph on the time axis of the streaming data packet received from the terminal 10 may be (c).

As described above, when a streaming data packet according to an embodiment of the present invention is provided to a terminal, a graph showing the streaming data packet provided to the terminal according to the amount of traffic on the time axis has been described.

The streaming data packet providing method and the streaming data packet processing method of the present invention as described above may be recorded and provided in the form of a computer-readable medium suitable for storing computer program instructions and data. At this time, the program recorded on the recording medium can be read, installed, and executed by a computer to execute the above-described functions.

Here, in order for the computer to read the program recorded on the recording medium and execute the functions implemented as the program, the above-described program is C, C++, which can be read by the computer's processor (CPU) through the computer's device interface. It may include code coded in a computer language such as JAVA and machine language.

This code may include a functional code related to a function defining the above-described functions, and may include a control code related to an execution procedure necessary for the processor of the computer to execute the above-described functions according to a predetermined procedure. In addition, these codes may further include additional information necessary for the processor of the computer to execute the above-described functions, or code related to a memory reference to which location (address address) of the internal or external memory of the computer should be referenced. . In addition, when the computer's processor needs to communicate with any other computer or server in a remote in order to execute the above-described functions, the code is used by the computer's processor using the computer's communication module. It may further include a communication-related code for how to communicate with other computers or servers, and what information or media should be transmitted and received during communication.

Such computer-readable media suitable for storing computer program commands and data include, for example, magnetic media such as hard disks, floppy disks, and magnetic tapes, and compact disk read only memory (CD-ROM). , Optical Media such as DVD (Digital Video Disk), Magneto-Optical Media such as Floptical Disk, and ROM (Read Only Memory), RAM (RAM) , Random Access Memory), flash memory, EPROM (Erasable Programmable ROM), and EEPROM (Electrically Erasable Programmable ROM). The processor and memory can be supplemented by special purpose logic circuits or incorporated into it.

In addition, the computer-readable recording medium is distributed over a computer system connected through a network, so that computer-readable codes can be stored and executed in a distributed manner. In addition, a functional program for implementing the present invention, and related codes and code segments, etc., are programmers in the technical field to which the present invention pertains in consideration of the system environment of a computer that reads the recording medium and executes the program. May be easily inferred or modified by

While this specification includes details of a number of specific implementations, these should not be construed as limiting to the scope of any invention or claim, but rather as a description of features that may be peculiar to a particular embodiment of a particular invention. It must be understood. Certain features described herein in the context of separate embodiments may be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment can also be implemented in multiple embodiments individually or in any suitable sub-combination. Furthermore, although features operate in a particular combination and may be initially described as so claimed, one or more features from a claimed combination may in some cases be excluded from the combination, and the claimed combination may be a subcombination. Or sub-combination variations.

Likewise, although operations are depicted in the drawings in a specific order, it should not be understood that such operations must be performed in that particular order or sequential order shown, or that all illustrated operations must be performed in order to obtain a desired result. In certain cases, multitasking and parallel processing can be advantageous. In addition, separation of the various system components of the above-described embodiments should not be understood as requiring such separation in all embodiments, and the program components and systems described are generally integrated together into a single software product or packaged in multiple software products. You should understand that you can.

The present invention relates to a method of providing a streaming data packet, and more particularly, to a method of providing a streaming data packet through a streaming providing server and a base station interworking node, and a base station interworking node therefor.

The present invention has been proposed in order to solve the above-described conventional problem, and in particular, a service method for providing streaming data packets adaptively according to the amount of traffic in a base station using MPEG Media Transport (MMT) technology. , Devices and systems can be provided. This invention can contribute to the development of the streaming service industry.

In addition, the present invention is not only sufficiently commercially available or commercially possible, but also has industrial applicability because it can be implemented clearly in reality.

10: terminal 20: access network
30: base station 40: base station interlocking node
41: interface unit 42: analysis module
43: media processing module 44: monitoring module
50: core network 60: internet network
70: streaming providing server 71: server communication unit
72: server control unit 72a: data packet generation module
72b: data packet transmission module 73: server storage unit
500: streaming data packet header 505: Type of Servie field

Claims (18)

In a base station interworking node connected to at least one base station,
The base station interworking node
An analysis module for analyzing a header of a streaming data packet transmitted to a terminal through the base station from a streaming providing server providing a streaming service of content, and analyzing frame compression type information of video data included in the streaming data packet; And
Including; a media processing module for adjusting the frame rate of the content by removing video data of the streaming data packet frame by frame based on the analyzed frame compression type information according to the traffic amount of the base station;
The media processing module
The base station interworking node, wherein the removal is made constant for each flow through which the streaming data packet is transmitted. The method of claim 1, wherein the streaming data packet
A base station interworking node, characterized in that it is an MPEG Media Transport (MMT) packet. The method of claim 1,
The streaming data packet includes video data in units of 1 frame. The method of claim 1, wherein the media processing module
A base station interworking node, wherein at least a part of video data of B or P type among I, B, and P type frame compression types is removed at a predetermined ratio. The method of claim 1, wherein the analysis module
The base station interworking node, characterized in that analyzing the frame compression type information from the ToS (Type of Service) field of the header. The method of claim 1, wherein the media processing module
And determining a frame rate according to the amount of traffic of the base station, and setting a removal rate of the video data according to the frame rate. The method of claim 6,
Base station interworking node further comprising a monitoring module for monitoring the traffic volume of the base station. delete delete delete In the streaming data packet processing method of a base station interworking node connected to at least one base station,
Receiving a streaming data packet to be transmitted to a terminal from a streaming providing server that provides a streaming service of content through the base station;
Analyzing frame compression type information in the header of the received streaming data packet; And
Including, according to the traffic volume of the base station, removing video data included in the received streaming data packet frame by frame based on the analyzed frame compression type information to adjust the frame rate of the content;
The adjusting step
The method of processing a streaming data packet through a base station interworking node, wherein the removal is made constant for each flow through which the streaming data packet is transmitted. The method of claim 11, wherein the streaming data packet
A method of processing a streaming data packet through a base station interworking node, characterized in that it is an MPEG Media Transport (MMT) packet. The method of claim 11,
The streaming data packet processing method through a base station interworking node, characterized in that the streaming data packet includes video data in units of one frame. The method of claim 11, wherein the adjusting step
A method for processing a streaming data packet through a base station interworking node, characterized in that among I, B, and P type frame compression types, B or P type video data is removed at a predetermined rate. The method of claim 11, wherein the analyzing step
A method of processing a streaming data packet through a base station interworking node, characterized in that the frame compression type information is analyzed from the ToS (Type of Service) field of the header. The method of claim 11, wherein the adjusting step
Determining a frame rate according to the traffic volume of the base station; And
And setting a removal rate of the video data based on the frame compression type information according to the frame rate. A computer-readable recording medium storing a program for executing the streaming data packet processing method according to any one of claims 11 to 16. A computer program implemented to execute the streaming data packet processing method according to any one of claims 11 to 16 and recorded in a computer-readable recording medium.

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