KR101477714B1 - Method for providing contents with resource recognition - Google Patents

Abstract

A method of providing resource-aware content, comprising: receiving a first content quality required from a first device; receiving available computing resources and available networking resources of each device from a plurality of available devices; Searching and determining computing resources and networking resources that satisfy the received first content quality within a range of available networking resources and determining a first transcoder having the determined computing resources and networking resources in the plurality of available devices And a step of selecting the step of selecting the step.

Description

{METHOD FOR PROVIDING CONTENTS WITH RESOURCE RECOGNITION}

The present invention relates to a resource-aware content providing method.

With the recent explosion of Internet users, the Internet is playing a more than a channel of information communication. Since various application services are provided through the Internet, the user can enjoy a more convenient and enriching life, and the Internet creates various added value that are not available in the past.

However, it is difficult to reproduce the common contents and quality in the proper form and quality because the devices connected to the network share and transmit contents in different computing ability and networking capability.

In this regard, U.S. Patent Application (Publication No. 2007-00871522) discloses a video conference system and method, and discloses a method of modifying the content quality to match the network connection speed. However, in the specific method, But does not disclose techniques for identifying computing resources and available networking resources and selecting or arranging the subject of transcoding.

U.S. Published Patent Application No. 2007-00871522

Some embodiments of the present invention are directed to providing a resource-aware content providing method capable of enhancing a user's experience of quality (QoE) by reproducing the format and quality of content according to various devices .

In some embodiments of the present invention, after the available resources of the media server and the plurality of devices are grasped, the content and the strength of the transcoding of the content are adjusted so that the resource- And to provide a method of providing the same.

According to a first aspect of the present invention, there is provided a resource-aware content providing method comprising: receiving a first content quality required from a first device; receiving, from a plurality of available devices, The method comprising the steps of: receiving available computing resources and available networking resources; searching and determining computing and networking resources that satisfy the received first content quality within the range of the available computing resources and available networking resources; And selecting a first transcoder having the determined computing resources and networking resources in the plurality of available apparatuses.

A resource-aware content providing method according to a second aspect of the present invention includes: receiving each content quality required from a plurality of devices; receiving available computing resources and available networking resources of each device from a plurality of available devices And searching and determining a computing resource and a networking resource satisfying a first content quality among the received plurality of content qualities within a range of the received available computing resources and available networking resources, determining the determined computing resources and networking resources Selecting within the plurality of available devices a first transcoder having available computing resources and available networking resources within a range that is less than the computing and networking resources used due to the selection of the first transcoder in the received available computing resources and available networking resources , Computing resources that satisfy the second content quality, The step of re-crystallization by re-search for resources, and the second transcoder having the recrystallized computing resources and network resources, characterized in that it comprises the step of selecting in said plurality of available devices.

A regulator for providing resource-aware content according to the third aspect of the present invention includes a content quality receiver for receiving a first content quality required from a first device and a second content quality required from a second device, The method comprising the steps of: searching for a computing resource and a networking resource that satisfy the first content quality within the range of the available computing resource and the available networking resource, receiving the available computing resources and the available networking resources from each device And selecting a first transcoder having the determined computing resources and networking resources in the plurality of available apparatuses.

According to any one of the above-mentioned objects of the present invention, it is possible to enhance the quality of experience (QoE) of a user by processing and providing the format and quality of contents according to various devices, It is possible to provide a resource-aware content providing method capable of continuing resource-efficient N-screen service by adjusting the subject and strength of transcoding of the content after grasping the available resources of the device of the device.

1 is a block diagram illustrating a resource-aware content providing system according to an embodiment of the present invention.
2 is a configuration diagram showing transcoding and streaming in a resource-aware content providing system according to an embodiment of the present invention.
3 is a block diagram illustrating a mediator according to an embodiment of the present invention.
4 is a graph for explaining a resource adjustment method performed by the arbitrator according to an embodiment of the present invention.
5 is a diagram illustrating a signal flow according to a subject of a resource-aware content providing system according to an embodiment of the present invention.
6 is a flowchart illustrating a resource-aware content providing method according to an embodiment of the present invention.
FIG. 7 is a graph illustrating connection relationships among components of a resource-aware content providing system according to another embodiment of the present invention.
8 is a diagram illustrating a process of determining a location of a transcoder in a resource-aware content providing system according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the embodiments of the present invention in the drawings, parts not related to the description are omitted, and like parts are denoted by similar reference numerals throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between . Also, when an element is referred to as "including" an element, it is to be understood that the element may include other elements as well as other elements, And does not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. In each step, the identification code is used for convenience of explanation, and the identification code does not describe the order of the steps, and each step may be performed differently from the stated order unless clearly specified in the context. have. That is, each of the steps may be performed in the same order as described, or may be performed substantially concurrently or in the reverse order.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram for explaining a resource-aware content providing system according to an embodiment of the present invention. FIG. 2 is a block diagram of a system for providing a resource-aware content providing system according to an embodiment of the present invention. Fig.

The media server 100, the regulator 300, the device 500, and the transcoder disclosed in Figs. 1 and 2 are merely illustrated for convenience of explanation, so that the apparatus and the server of the present invention are shown in Figs. 1 and 2 But is not limited to the illustrated ones.

1, a resource-aware content system 1 according to an embodiment of the present invention includes a media server 100, a coordinator 300, and one or more devices 500 connected to a network 700 .

The media server 100 may be implemented as a computer or software for providing services or content to the device 500 via the network 700. [ The media server 100 may stream content such as video, graphics, messages, and web documents to the device 500 in a predetermined format.

The mediator 300 selects and arranges a transcoder that transforms the content provided from the media server 100 into a data format suitable for each device 500 considering the networking and computing resources of the plurality of available devices . For example, a plurality of usable devices are controlled by the regulator 300, and the regulator 300 determines whether the format of the content provided by the media server 100 matches the content format (quality) set by the device 500 , The transcoder may be arranged to resolve the format (quality) discrepancy. At this time, the plurality of usable devices may include, for example, a media server 300, one or more devices 500, and the like.

The device 500 may be implemented as a computer that is capable of accessing the media server 100 at a remote location via the network 700. [ Here, the computer may include, for example, a notebook, a desktop, a laptop, and the like on which a WEB browser is installed. In addition, the device 500 may be implemented as a terminal capable of connecting to the media server 100 at a remote location via the network 700. [ The device 500 is, for example, a wireless communication device with guaranteed portability and mobility. The device 500 includes a PCS (Personal Communication System), a GSM (Global System for Mobile communications), a PDC (Personal Digital Cellular), a PHS PDA (Personal Digital Assistant), IMT (International Mobile Telecommunication) -2000, CDMA (Code Division Multiple Access) -2000, W-CDMA (W-CDMA), Wibro (Wireless Broadband Internet) ), A Tablet PC, and the like. ≪ RTI ID = 0.0 > [0002] < / RTI >

For example, the device 500 may include a user who performs a video conference with another device 500, shares a screen and sends and receives messages, a plurality of users who stream content, a tiled display The user of the N-screen service, such as a user viewing the N-screen service.

In addition, when the device 500 receives the content from the media server 100, the device 500 can receive the content in two ways, for example. The first method is a method in which the media server 300 directly acts as a transcoder and provides the content converted by the device 500 in accordance with the requested content quality. The second method is a method in which a content delivered from the media server 300 is converted by one of the devices 500 to perform a function of a transcoder according to the quality requested by the other device 500 . At this time, the device 500 and the other device 500 represent the same subjects but different subjects.

Network 700 may be a wired network such as, for example, a local area network (LAN), a wide area network (WAN) or a value added network (VAN) ) Or a satellite communication network or the like.

In this manner, the regulator 300 can select and place a transcoder, which is the subject of transcoding, in consideration of networking resources and computing resources of a plurality of available devices. This will be described in detail with reference to FIG.

2, the respective components, the computing resources (Computing Resource, R ^(com)), network resources (Networking Resource, R ^(net) of a resource that the mold content system 1 according to one embodiment of the present invention ), And a storage resource (Storage Resource, R ^{( stor )} ). The computing resources, networking resources, and storage resources of the plurality of available devices may vary depending on the performance of each available device.

The arrows shown in FIG. 2 illustratively show the types of streaming. The white arrows can be Low-Compressed and High-Volume Streaming, the black arrows can be High-Compressed and Low-Volume Streaming, and the shaded arrows indicate medium-pressure axis medium capacity streaming Mid-Compressed and Mid-Volume).

The size of the prototype represented by the computing resources, networking resources, and storage resources shown in FIG. 2 is defined as representing a greater or lesser amount of computing resources, networking resources, and storage resources. The media server 100 typically has an amount of computing resources, networking resources, and storage resources. The first upper left device 500 of the device 500 typically has a small amount of computing resources and networking resources, but a small amount of storage resources. The second upper left device 500 of the device 500 typically has a small amount of computing resources and storage resources, but a small amount of networking resources. The third upper left device 500 of the device 500 has a large number of computing resources, networking resources, and storage resources. The fourth upper left device 500 among the devices 500 is usually a computing resource and a storage resource, but the amount of networking resources is small.

A white arrow connects the media server 100 and the third device 500. The third device 500 may be a device with a tiled display. Both the media server 100 and the third device 500 are capable of transcoding anywhere because computing resources, networking resources, and storage resources are common or abundant.

A black arrow connects the third device 500 with the second device 500, the third device 500 and the fourth device 500. The second device 500 may be a desktop, and the fourth device 500 may be a laptop. Although the second device 500 and the fourth device 500 are usually a computing resource and a storage resource, since the networking resources are somewhat lacking, the content of the third device 500 is compressed at a high compression rate to reduce the amount of streaming through the network It is possible to perform transcoding with a high compression and low capacity. That is, the third device 500 may serve as a transcoder.

A shaded arrow connects the media server 100 and the first device 500. The first device 500 may be a smart phone. Since the first device 500 is usually a computing resource and a networking resource, the media server 100 may transcodate the content into a medium capacity medium capacity.

Here, the high compression low capacity stream refers to a flow of content that has undergone weight transcoding, which is performed when the computing resources are relatively high, while the capacity is reduced as the compression rate of the content is high. Here, the weight means that the higher the compression ratio based on the computing resource, the more computing resources are used, so that the computing resource is used more frequently.

The low compression high capacity stream refers to the flow of lightweight transcoded content that is performed when the computing resource is relatively low compared to the networking resources being relatively high since the capacity increases as the compression rate of the content is low. Here, the lightweight means that as the compression ratio is low based on the computing resources, less computing resources are used, which means that less computing resources are used.

As shown in FIG. 2, a plurality of usable devices are available as either the media server 100 or the plurality of devices 500. The controller 300 controls the content transmitted from the media server 100 in accordance with the content format requested by each device 500 in consideration of networking resources, computing resources, storage resources, etc. of all the available devices connected to the network 700 Quality), and may select the strength of the transcoding to implement the streaming service.

Here, the order of selecting and arranging the subject of transcoding and determining the strength of the transcoding may not be sequential, and may occur simultaneously or in reverse order.

The resource-aware content providing method according to an embodiment of the present invention will be described as follows.

Users of videoconferencing may have different videoconferencing systems. In addition, the network connection location of users who have video conferencing may be various in Asia, Europe, and the United States, and the situation of the network, the reception bandwidth, and the transmission bandwidth may vary. When each user having such various networking resources and computing resources share the same content and conduct video conferencing, the same content must be transformed into various content formats in accordance with each device 500, Should be shared in real time.

In this case, assuming that there is media content transmitted from Asia, in order to share it in real time, it is necessary to transform it into a media format suitable for each device 500 and perform streaming. At this time, the regulator 300 grasps computing resources, networking resources, and storage resources of each user in Asia, Europe, and the United States, and receives the content quality requested by each user.

The media content must be transcoded to suit each device 500 in order to match the content quality required by the users and the regulator 300 is controlled to act as a transcoder to the device 500 which is rich in both networking resources and computing resources can do. Alternatively, the media server 100 itself may perform a transcoder function to stream content in a media format suitable for each device 500. Alternatively, both of these methods may be used.

In this case, networking resources and computing resources can be shared and used via the network 700, and contents can be shared in real time without any interruption or buffering in a media format suited to each of the devices 500, And a resource-aware content providing method adaptively when the computing resources are changed.

Here, the video conference is merely an example of sharing content using the resource-aware content providing system. Accordingly, the resource-aware content providing method according to an embodiment of the present invention can be utilized not only for video conferencing but also various N screen services such as a video streaming service.

3 is a block diagram illustrating a regulator according to an embodiment of the present invention.

The coordinator 300 according to an embodiment of the present invention may include a content quality receiving unit 310, an available resource receiving unit 330, and a control unit 350.

The content quality receiving unit 310 can receive the first content quality requested from the first device and the second content quality requested from the second device. At this time, the first device and the second device may refer to any one of the plurality of devices 500

At this time, the first content quality may be a quality determined according to specifications, specifications, etc. of the first device, or a quality set by the user. For example, the quality of the content that can be received by the first device is HD (High Definition). If the quality set by the user is set to Full HD, the quality may be determined based on the low quality HD. Or, if the quality set by the user is lower than the quality determined according to the specification or the like, the quality set by the user may be prioritized. On the contrary, when the quality set by the user is higher than the quality determined according to the specification or the like, the first device can not reproduce the content with the resolution of the quality set by the user, so that the first device can set the first content quality based on the low value. The second content quality may also be determined on the same principle as the first content quality.

The available resource receiving unit 330 may receive the available computing resources and the available networking resources of each device from the plurality of available devices 100 and 500. At this time, the networking resources can be received by distinguishing the reception bandwidth and transmission bandwidth of each device. At this time, the available resource receiving unit 330 grasps the available resources of the available devices by using networking resources and computing resources of all the devices connected to the network, and transcoding the contents according to the content quality suited to each device And then streaming.

The control unit 350 can search for and determine computing resources and networking resources that satisfy the first content quality received within the range of the available computing resources and the available networking resources. In addition, the location of the first transcoder with the determined computing and networking resources may be selected within the plurality of available devices (100, 500).

The control unit 350 can search for computing resources and networking resources while simultaneously searching for computing resources and networking resources. At this time, the strength of the transcoding can be determined within the range of the computing resources and the networking resources possessed by the usable device selected as the first transcoder. Depending on the strength of the transcoding thus determined, the content can be transcoded and transmitted to the first device.

In addition, the control unit 350 determines whether or not the computation resources that satisfy the received second content quality within a range obtained by subtracting the computing resources and the networking resources used due to the selection of the first transcoder from the received available computing resources and the available networking resources And networking resources can be rediscovered and redetermined. A second transcoder with recalculated computing resources and networking resources may be selected within the plurality of available devices 100,500. Here, the media server may be selected as the first transcoder and the second transcoder, or one of the plurality of devices may be selected.

At this time, the first content quality may be higher than the second content quality. For example, if limited networking and computing resources are present, it may be easier to provide transcoding and streaming services for devices requiring the highest quality, and to satisfy the quality of the remaining devices. Therefore, it is possible to set a device requiring the highest quality as a first device, to satisfy a first content quality of a first device as a first priority, and then to set a second device satisfying a second content quality lower than the first content quality Transcoding can be performed. The devices requesting the content quality are not limited to the first device and the second device but may be more than that, and even when there are a plurality of devices, transcoding is performed so as to conform to the content quality required by each device can do.

The controller 350 can determine the strength of the transcoding within the range of the computing resources and the networking resources possessed by the second transcoder. Depending on the strength of the transcoding thus determined, the content can be transcoded and transmitted to the second device. At this time, the plurality of usable devices 100 and 500 may include a media server and a plurality of display devices.

The controller 300 including the content quality receiving unit 310, the available resource receiving unit 330 and the control unit 350 may be a gateway connected to the media server and the display device through a network. Or an N-screen management server that can share content while efficiently utilizing limited computing resources and networking resources, for example.

Transcoding may include weight transcoding to produce a high compression low capacity stream, lightweight transcoding to produce a low compression high capacity stream, and when the computing and resource resources are searched for and determined, the controller 350 may include computing resources and networking resources And may search only considering computing resources, or may search for only changing networking resources.

The coordinator 300 according to another embodiment of the present invention may receive the respective content quality required from the device and receive the available computing resources and networking resources of each device from the available devices. At this time, it is possible to determine the transcoding strength that satisfies the content quality received within the range of the available available computing resources and the available networking resources, and to select the transcoder for transcoding the content according to the determined transcoding strength It is possible. That is, the order of determining the transcoding strength and selecting the location of the transcoder may be reversed, occurring simultaneously, or sequential.

4 is a graph for explaining a resource adjustment method performed by the arbitrator according to an embodiment of the present invention. Referring to FIG. 4, the transcoding intensity at the starting point is high compression low capacity stream, but it can be seen that the transcoding intensity has changed toward low compression high capacity streaming.

That is, initially there were many available computing resources and less available networking resources, but because of the environment in which available computing resources have diminished as time has changed and the available networking resources have increased, regulators have been instructed to use lightweight transcoding instead of heavy transcoding will be.

At this time, although the computing resources and the networking resources used for the heavy transcoding and the lightweight transcoding are different, the content quality can be maintained substantially constant. That is, in order to satisfy the content quality of the user using any device, the content is transcoded to fit the changed computing resources and networking resources, but the content quality can be kept substantially constant.

Thus, although content quality such as a video stream provides substantially the same quality, the computing resources and networking resources used for transcoding are different, and one of the methods of weight transcoding and lightweight transcoding may be used to provide the same media source So that a video stream of substantially the same quality can be supplied.

5 is a diagram illustrating a signal flow according to a subject of a resource-aware content providing system according to an embodiment of the present invention.

The resource-aware content providing system according to an embodiment of the present invention may be implemented by connecting the media server 100 and a plurality of devices 500, with the coordinator 300 as a center.

First, each device 500 sends the desired content quality to the coordinator 300 (S5100), and when the coordinator 300 begins to grasp the available computing resources and the available networking resources, each device 500 determines its availability Computing resources and available networking resources (S5200). At this time, each device 500 may include one or more display terminals and a media server 100.

The coordinator 300 searches and determines computing resources and networking resources that satisfy the content quality (S5300), selects a transcoder having the determined computing resources and networking resources from the available devices (S5400), and determines the transcoding intensity (S5500).

In this manner, when the subject of the determined transcoding is, for example, the media server 100, the regulator 300 transmits the strength of the transcoding to the media server 100 (S5600) And performs a role of a coder (S5700).

Finally, the media server 100 streams the transcoded content to the device 500 with the content quality and format requested by the device 500 (S5700), and the device 500 can play the content.

The order between the above-described steps (S5100 to S5800) is merely an example, but is not limited thereto. That is, the order between the above-described steps S5100 to S5800 may be mutually varied, and some of the steps may be executed simultaneously.

6 is a flowchart illustrating a resource-aware content providing method according to an embodiment of the present invention.

First, the first content quality requested from the first device is received (S610).

In step S620, the available computing resources and the available networking resources of the respective devices are received from the plurality of available devices. In step S620, the computation resources and the networking resources satisfying the first content quality received within the range of the available and available networking resources, The resource can be searched and determined (S630).

Finally, the location of the first transcoder with the determined computing and networking resources may be selected within a plurality of available devices (S640).

The resource-aware content providing method described with reference to FIG. 6 may also be implemented in the form of a recording medium including instructions executable by a computer, such as a program module executed by a computer. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. In addition, the computer-readable medium may include both computer storage media and communication media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Communication media typically includes any information delivery media, including computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave, or other transport mechanism.

FIG. 7 is a graph illustrating a connection relationship among components of a resource-aware content providing system according to another embodiment of the present invention. FIG. In which the position of the light source is determined.

 With reference to Fig. 7, a method for the arbiter to select any of the devices as a transcoder in the resource-aware content providing system will be described.

That is, Fig. 7 is a method for the regulator to select the position of the transcoder and set the transcoding strength of the transcoder, and begins by receiving the required content quality from each device. At this time, the content quality should be equal to or lower than the content quality supplied by the media server. This is because it can not be processed with higher quality than the original image.

Next, a complete graph is drawn as shown in FIG. 7 so that available networking resources and available computing resources of a plurality of usable devices appear. In each circle, the computing resources of each usable device are indicated, and each arrow indicates the networking resources of each usable device.

Then, the content quality received from each device is sorted in descending order from the highest order, and then the highest content quality is selected. In order to identify the quality of the content requested by each device, the regulator can be stored in the database as shown in Table 1 as an identifier and real number of the device, as shown in Table 1.

Device identifier Content quality requirements Device 1 10 Device 2 7 Device 3 3 ... ...

After constructing a supplier set and a consumer set for the content quality required for each device, create a complete bipartite graph between the two sets. At this time, the consumer set is a set of devices requiring the same quality of content, and the supplier set is a set of devices that stream the content requested by the consumer set to the consumer set or transcoded to stream the modified content format. The consumer and the supplier belong to the circular shape of the full graph as shown in FIG. 7, that is, the vertex set.

In the full bipartite graph, the weight (w) is indicated in the arrow as shown in the following equation (1). At this time, if w is negative, the corresponding arrow is deleted from the full bipartite graph. At this time, the arrow is a networking resource including the reception bandwidth and the transmission bandwidth of each device.

In Equation (1), w is a weight,? Is a weight of a computing resource, R (com) is a computing resource, and R (net) is a networking resource. Where alpha is a real number between 0 and 1 to represent the ratio of computing and networking resources. In other words, it is decided which resource, computing resource and networking resource, should be given a weight and indicated by an arrow.

In the case of the empty set through the weight w of Equation 1, it means that all the devices are streaming the content with the desired content quality. Therefore, the resource-aware content providing method according to the embodiment of the present invention And terminates.

Or, if there is a circular shape, that is, a vertex, in a consumer set that does not have any arrows, the consumer can not stream the content with a desired quality of content. That is, the absence of an arrow means that there is no networking resource such as a reception bandwidth or a transmission bandwidth, but only a computing resource. Therefore, it is notified that the resource content providing method according to the embodiment of the present invention can not be performed any more and the desired quality can not be satisfied with the device, and a method of providing the resource aware content according to the embodiment of the present invention And terminates.

Alternatively, there is a case in which a supplier set and a consumer set are paired among a supplier set and a consumer set. This will be described with reference to FIG. When a maximum weight semi-matching algorithm is performed on a full bipartite graph, a set of providers that can supply content to all users is obtained. In other words, you can get an arrow that connects the provider with the most available networking and available computing resources, and the consumer connected to that provider.

In FIG. 8 (a), R1 is a provider for transmitting a media source with a content quality of 90, R2 and R3 are recipients for receiving a media source with a content quality of 25, R4, R5 are medium And R6 defines a media source of a content quality of 15 as a receiver to be transmitted.

In FIG. 8 (b), R1 may first transmit content to R2 and R3 that require the highest quality of content. In (c) of FIG. 8, R2 and R3 may be providers that are able to transcode and transmit to R4 and R5 because the content has been streamed. Finally, in FIG. 9 (d), R2, R3, R4, and R5 may be providers that may have transcoded and transmitted to R6 because the content has been streamed.

 In this way, transcoding and streaming are performed in the order of higher quality of content, but when the maximum weighting semi-matching algorithm is used, the subject of transcoding and streaming is determined as shown in FIG. 8 (e). Here, the arrows not indicated by the dark arrows indicate a connection that can not be transcoded or streamed to another device because of insufficient networking resources or computing resources.

Thus, this method can be repeated to locate the transcoder for all devices. In addition, a screen provided on the display device of another device may be received.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

Claims (21)

In a resource-aware content providing method,
Receiving a first content quality required from a first device,
Receiving available computing resources and available networking resources of each device from a plurality of available devices,
A first transcoder of a computing resource and a networking resource that satisfies the received first content quality based on a weight set in accordance with the weight between the computing resource and the networking resource within the range of the available computing resources and the available networking resources, Selecting, and
Determining the strength of the transcoding within the range of computing resources and networking resources possessed by the first transcoder,
Wherein selecting the first transcoder comprises:
A consumer group configured by the available devices requesting the first content quality of the plurality of available devices and the available devices streaming the content to the consumer group with the content quality requested by the consumer group Determining a supplier set; And
A complete graph corresponding to the computing resources of each usable device in the consumer set and each available device in the supplier set and networking resources reflecting the weight between each usable device in the consumer set and each usable device in the supplier set, ), ≪ / RTI >
And selecting the first transcoder through the generated complete graph.
delete delete The method according to claim 1,
And transcoding the content according to the determined strength of the transcoding and transmitting the transcoded content to the first device.
The method according to claim 1,
Receiving a second content quality required from a second device, and
A second transcoder for receiving the first content and the second content from the second transcoder; a second transcoder for receiving the second content from the second transcoder; And selecting a second transcoder of the resource and the networking resource.
6. The method of claim 5,
Determining the strength of the transcoding within the range of computing resources and networking resources possessed by the second transcoder
Further comprising the steps of:
The method according to claim 6,
Transcoding the content according to the determined intensity of the transcoding and transmitting the transcoded content to the second device
Further comprising the steps of:
The method according to claim 1,
Wherein the plurality of available devices include a media server and a display device.
9. The method of claim 8,
Wherein the main body of each of the steps is a gateway connected to the media server and the display device through a network.
The method according to claim 1,
Wherein the first content quality is determined to be lower than the quality according to the specification of the first device and the quality by the user input of the first device.
In a resource-aware content providing method,
Receiving respective content qualities required from a plurality of devices,
Receiving available computing resources and available networking resources of each device from a plurality of available devices,
A computing resource and a networking resource satisfying a first content quality among the received content qualities based on a weight set in accordance with a ratio between a computing resource and a networking resource within a range of the received available computing resource and available networking resources, Selecting a first transcoder of the first transcoder,
Determining the strength of the transcoding within the range of computing resources and networking resources possessed by the first transcoder;
A second transcoder configured to transmit the second content, the second content, and the second content, based on the weight, within a range obtained by subtracting the computing resources and the networking resources used due to the selection of the first transcoder from the received available computing resource and the available networking resource, Selecting a second transcoder of computing resources and networking resources that satisfy the quality, and
And determining the strength of the transcoding within the range of computing resources and networking resources possessed by the second transcoder,
Wherein selecting the first transcoder comprises:
A consumer group configured by the available devices requesting the first content quality of the plurality of available devices and the available devices streaming the content to the consumer group with the content quality requested by the consumer group Determining a supplier set; And
A complete graph corresponding to the computing resources of each usable device in the consumer set and each available device in the supplier set and networking resources reflecting the weight between each usable device in the consumer set and each usable device in the supplier set, ), ≪ / RTI >
Selecting the first transcoder via the generated complete graph and method can be provided.
12. The method of claim 11,
Wherein the first content quality is higher than the second content quality.
delete delete 12. The method of claim 11,
Wherein the transcoding is one of weight transcoding to produce a high compression low capacity stream and lightweight transcoding to produce a low compression high capacity stream.
delete delete In a resource-aware content providing method,
Receiving a respective content quality required from the device,
Receiving available computing resources and available networking resources of each device from an available device,
Selecting a transcoder of a computing resource and a networking resource that satisfy the received content quality within a range of the available computing resources and the available networking resources based on a weight set according to a ratio between a computing resource and a networking resource, Selecting within the available device, and
Determining the strength of the transcoding within a range of computing resources and networking resources possessed by the selected transcoder,
The step of selecting the transcoder
Determining a supplier set composed of a consumer set composed of the available devices requesting the received content quality and usable devices streaming the contents to the consumer set with the content quality requested by the consumer set; And
A complete graph corresponding to the computing resources of each usable device in the consumer set and each available device in the supplier set and networking resources reflecting the weight between each usable device in the consumer set and each usable device in the supplier set, ), ≪ / RTI >
And selecting the transcoder through the generated complete graph.
19. The method of claim 18,
Wherein the transcoding is one of weight transcoding to produce a high compression low capacity stream and lightweight transcoding to generate a low compression high capacity stream.
A coordinator for providing resource-aware content,
A content quality receiving unit for receiving a first content quality requested from the first device and a second content quality requested from the second device,
An available resource receiving unit for receiving available computing resources and available networking resources of each device from a plurality of available devices, and
A first transcoder of a computing resource and a networking resource that satisfies the received first content quality based on a weight set in accordance with the weight between the computing resource and the networking resource within the range of the available computing resources and the available networking resources, And a control unit which selects within the plurality of usable devices,
The control unit
A provider group configured by a consumer group that is configured by the available devices that request the first content quality among the plurality of available devices and an available device that streams the content to the consumer group with a content quality requested by the consumer group, Lt; / RTI >
A complete graph corresponding to the computing resources of each usable device in the consumer set and each available device in the supplier set and networking resources reflecting the weight between each usable device in the consumer set and each usable device in the supplier set, To select the first transcoder.
21. The method of claim 20,
Wherein the control unit is further operable to, within a range obtained by subtracting the computing resources and the networking resources used due to the selection of the first transcoder from the received available computing resources and the available networking resources, And a second transcoder of computing resources and networking resources that satisfies said first transcoder in said plurality of available devices.

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