KR20220032229A - Method for controlling data transmission in distributed network and appratuses perfroming the same - Google Patents

Abstract

Disclosed are a method for controlling data transmission in a distributed network and apparatuses for performing the same. A data transmission control method according to an embodiment includes setting a data transmission control policy of a peer participating in a distributed network, and transmitting a message including the data transmission control policy to the distributed network.

Description

Data transmission control method in a distributed network and devices for performing the same

The present disclosure relates to a data transmission control method in a distributed network and apparatuses for performing the same.

In various services based on a distributed network, terminals can freely transmit data. In general, in a distributed network, a terminal that is a data source divides data into pieces and transmits the data and exchanges pieces between terminals, so that when receiving pieces from a plurality of terminals, data can be quickly received. In particular, distributed network-based data transmission methods are being used in applications where any participating terminal can be a data source, such as distributing data from IoT terminals or multi-party video conferences.

On the other hand, among applications in which a plurality of terminals can be a data source, there is a case where it is necessary to control the authority to become a data source. For example, in a video conference, a chairperson may give a voice to a participant who is requesting a voice to speak. The data transmission method through the existing distributed network does not consider data transmission authority when configuring the distributed network. In addition, when a plurality of terminals become data sources and transmit data, the data sources transmit data at a high data rate, thereby giving a load to the physical network, but there is no method for limiting the transmission speed or amount when configuring the overlay network.

Embodiments may provide a technique for controlling data transmission authority of a terminal participating in a distributed network or controlling a data transmission level.

However, the technical tasks are not limited to the above-described technical tasks, and other technical tasks may exist.

A data transmission control method according to an embodiment includes setting a data transmission control policy of a peer participating in a distributed network, and transmitting a message including the data transmission control policy to the distributed network.

The data transmission control policy may include setting of data transmission authority.

The data transmission control policy may further include setting a data transmission level.

The setting of the data transmission level may include at least one of a setting of a transmission bit rate and a setting of the number of pieces to be transmitted.

Only one value of the transmission bit rate and the number of pieces to be transmitted may be set.

The data transmission control policy may further include peer information related to the data transmission right.

The setting may include, by the peer requesting the creation of the distributed network, setting the data transmission control policy when the creation of the distributed network is requested.

The transmitting may include transmitting a message requesting creation of the distributed network including the data transmission control policy to the distributed network management server.

The method may further include changing the data transmission control policy and transmitting a message including the changed data transmission control policy to the distributed network.

The method may further include informing peers constituting the distributed network of data transmission rights set by the data transmission control policy.

A terminal according to an embodiment includes a memory for storing one or more instructions and a processor for executing the instructions, and when the instructions are executed, the processor sets a data transmission control policy of a peer participating in a distributed network and transmits a message including the data transmission control policy to the distributed network.

The data transmission control policy may include setting of data transmission authority.

The data transmission control policy may further include setting a data transmission level.

The setting of the data transmission level may include at least one of a setting of a transmission bit rate and a setting of the number of pieces to be transmitted.

The processor may set only one of the transmission bit rate and the number of pieces to be transmitted.

The data transmission control policy may further include peer information related to the data transmission right.

The processor may set the data transmission control policy when the creation of the distributed network is requested, and transmit a message requesting creation of the distributed network including the data transmission control policy to the distributed network management server.

The processor may change the data transmission control policy and transmit a message including the changed data transmission control policy to the distributed network.

The processor may notify peers constituting the distributed network of the data transmission right set by the data transmission control policy.

A data transmission control method according to an embodiment comprises the steps of: an establishment peer requesting creation of a distributed network sets data transmission rights; and, by the establishment peer, a message requesting creation of the distributed network including the data transmission rights transmitting to a distributed network management server; receiving, by the establishment peer, a response message to the request message from the distributed network management server; receiving a request for the data transmission right from a peer; and changing, by the establishing peer, the data transmission right so that the data transmission right is granted to the one peer in response to the request for the data transmission right. do.

1 schematically shows a distributed network system according to an embodiment.
2 shows a structure related to data transmission right.
3 shows a request message transmitted by an establishing peer to a HOMS to create an overlay network.
4 shows a response message transmitted by the HOMS to an establishing peer in response to an overlay network creation request.
5 shows an OverlayQuery response message.
6 shows an OverlayModification request message,
7 shows an OverlayModification response message.
8 shows an OverlayJoin response message.
9 is a diagram for explaining message transmission between peers.
10 shows a CTRL_AUTH request message for requesting data transmission authority.
11 shows a CTRL_AUTH response message to a request for data transmission right.
12 shows a schematic block diagram of a peer according to an embodiment.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, since various changes may be made to the embodiments, the scope of the patent application is not limited or limited by these embodiments. It should be understood that all modifications, equivalents and substitutes for the embodiments are included in the scope of the rights.

The terms used in the examples are used for the purpose of description only, and should not be construed as limiting. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprise" or "have" are intended to designate that a feature, number, step, operation, component, part, or a combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiment belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

In addition, in the description with reference to the accompanying drawings, the same components are given the same reference numerals regardless of the reference numerals, and the overlapping description thereof will be omitted. In describing the embodiment, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the embodiment, the detailed description thereof will be omitted.

In addition, in describing the components of the embodiment, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms. When it is described that a component is "connected", "coupled" or "connected" to another component, the component may be directly connected or connected to the other component, but another component is between each component. It will be understood that may also be "connected", "coupled" or "connected".

Components included in one embodiment and components having a common function will be described using the same names in other embodiments. Unless otherwise stated, descriptions described in one embodiment may be applied to other embodiments as well, and detailed descriptions within the overlapping range will be omitted.

1 schematically shows a distributed network system according to an embodiment.

The distributed network system 10 includes one or more peers 110 to 150 and an overlay management server (HOMS, 200). In FIG. 1 , five peers 110 to 150 are illustrated for convenience of description, but the present invention is not limited thereto, and there may be one or more peers 110 to 150 .

The distributed network system 10 may transmit data in a distributed network environment. The distributed network may be an overlay network. In the overlay network, data transmission may be performed according to the configuration shown in FIG. 1 . For example, services such as multimedia streaming or IoT data distribution may also be available in the configuration shown in FIG. 1 .

Each peer 110 to 150 may participate in an overlay network configured to provide a service. Each peer 110 to 150 may be a terminal. The terminal may be implemented as an Internet of Things (IoT) device, a desktop, a server, and a portable electronic device. Portable electronic devices include laptop computers, mobile phones, smart phones, tablet PCs, mobile internet devices (MIDs), personal digital assistants (PDAs), and enterprise digital assistants (EDAs). ), digital still camera, digital video camera, PMP (portable multimedia player), PND (personal navigation device or portable navigation device), handheld game console, e-book It may be implemented as an (e-book) or a smart device. For example, the smart device may be implemented as a smart watch or a smart band.

Each peer 110 to 150 may interwork with the HOMS 200 when participating in the overlay network.

In this case, the topology of the overlay network may be in the form of a tree or a mesh. However, the topology of the overlay network configured by the peers 110 to 150 is not limited thereto, and may be configured in various types of topologies.

In this process, each peer 110 to 150 may acquire information on data transmission control. It is assumed that the peer 110 among the peers 110 to 150 is a peer that establishes an overlay network.

First, the establishing peer 110 that establishes the overlay network may set a data transmission control policy to be applied to the overlay network as a whole. The data transmission control policy is set by a structure (TRANS_POLICY) for the data transmission control policy, and the structure (TRANS_POLICY) is a request and/or response message transferred between each of the components 110 to 200 of the distributed network system 10. may be included.

The structure (TRANS_POLICY) is included in the message and delivered to each peer 110-150, so that the data transmission authority of the peers 110-150 participating in the overlay network is controlled or the data transmission level is controlled by the structure (TRANS_POLICY). that can be controlled.

2 shows a structure related to data transmission right, FIG. 3 shows a request message sent by an establishing peer to the HOMS to create an overlay network, and FIG. 4 is a response message sent by the HOMS to the establishing peer in response to an overlay network creation request indicates

Referring to FIG. 2 , the establishing peer 100 may set a structure (TRANS_POLICY) related to data transmission authority.

The structure (TRANS_POLICY) may include transmission-authority-control. If the establishing peer 110 sets the value of transmission-authority-control to yes, the peers 120 to 150 excluding the establishing peer 110 can transmit only when they have transmission authority. .

The structure (TRANS_POLICY) further includes a transmission bitrate (rate-control-bitrate) and/or a fragment transmission number (rate-control-quantity), and the opening peer 110 transmits the transmission bitrate independently of the transmission authority control setting. (rate-control-bitrate) and/or the number of fragment transmissions (rate-control-quantity) may be set.

First, when the opening peer 110 sets the transmission bitrate (rate-control-bitrate), it cannot transmit in excess of the corresponding transmission bitrate, and when it is set to 0, there is no restriction on the transmission bitrate. In this case, the unit may be set to kbps. The transmission bitrate (rate-control-bitrate) may mean the maximum bitrate.

When the opening peer 110 sets the rate-control-quantity, it cannot transmit fragments (eg, data fragments) exceeding the set number per minute from the time when transmission starts, and if set to 0, There is no limit on the number of transmissions. The number of fragment transmissions (rate-control-quantity) may mean the maximum number of fragment transmissions per minute.

However, the establishing peer 110 cannot set both the values of the transmission bitrate (rate-control-bitrate) and the number of fragment transmissions (rate-control-quantity) at the same time. That is, both values must be set to 0 and both must be cleared, or at least one must be set to 0.

The establishing peer 110 sets two types of transmission capability settings, that is, a transmission bit rate (rate-control-bitrate) and a setting of a fragment transmission number (rate-control-quantity) together with a transmission authority control (transmission-authority-control). can be set.

The structure (TRANS_POLICY) may further include peer information (auth-list) related to transmission authority, and the establishing peer 110 may put information of a peer that will allow transmission when establishing an overlay network in peer information (auth_list). .

As shown in FIG. 3 , when an overlay network creation request is made, the establishing peer 110 sets a structure (TRANS_POLICY) related to data transmission authority, and sends an OverlayCreation request message including the structure (TRANS_POLICY) to the HOMS 200 . can be transmitted The establishment peer 100 requests the HOMS 200 to create an overlay network while transmitting the OverlayCreation request message, which is a request message for requesting creation of the overlay network, to the HOMS 200 .

The HOMS 200 receives the OverlayCreation request message, responds to the structure (TRANS_POLICY) included in the OverlayCreation request message, and returns the same value as the request message in the OverlayCreation response message to check the corresponding setting. The OverlayCreation response message is as shown in FIG. 4 .

The setting of the data transmission right may be checked through messages other than the OverlayCreation request message and the response message, which will be described below.

5 shows an OverlayQuery response message.

The setting of this data transmission right may be confirmed through OverlayQuery in which the peers 110 to 150 request information on the overlay network. When the peers 110 to 150 transmit an OverlayQuery request message to the HOMS 200, the HOMS 200 includes a structure (TRANS_POLICY) related to the data transmission authority in the OverlayQuery response message to the data transmission authority and / or data transmission level. You can inform the setting value for

6 shows an OverlayModification request message, and FIG. 7 shows an OverlayModification response message.

The establishing peer 110 may change the control of the preset data transmission right. The opening peer 110 may change the setting value of the structure (TRANS_POLICY) related to the data transmission authority, and transmit an OverlayModification request message including the structure (TRANS_POLICY) of the changed setting value to the HOMS 200 . The HOMS 200 may notify that a preset value for data transmission right and/or data transmission level has changed by outputting an OverlayModification response message in response to the OverlayModification request message.

8 shows an OverlayJoin response message.

Peers 120 to 150 excluding the establishing peer 110 may transmit an OverlayJoin request message to the HOMS 200 in order to participate in the overlay network established by the establishing peer 110 . The HOMS 200 may transmit an OverlayJoin response message for information of the overlay network to the peers 120 to 150 in response to the OverlayJoin request message. If information on data transmission authority is set, the HOMS 200 includes information about data transmission authority in the OverlayJoin response message, that is, a structure (TRANS_POLICY) related to data transmission authority to the data transmission authority and/or data transmission level. You can inform the setting value for

9 is a diagram for explaining a message transmission for a transmission permission permission request operation between peers, and in particular, a transmission operation between peers in a tree-type overlay network.

When the data transmission authority is set, the establishing peer 110 may transmit a BROADCAST_DATA message to the peers 120 to 150 . The BROADCAST_DATA message may be a message for the establishing peer 110 to provide (or notify) data transmission authority to the peers 120 to 150 constituting the overlay network.

The BROADCAST_DATA message includes peer IDs of peers that the establishing peer 110 will allow transmission, and can be sequentially delivered to all of the peers 120 to 150 constituting the overlay network as in steps 810 to 840 of FIG. .

The opening peer 110 periodically transmits a BROADCAST_DATA message, and through this, information of a peer leaving the overlay network or participating newly in the middle of the service is identified and transmitted to the peers 120 to 150 participating in the overlay network at the same time. You can provide up-to-date information about your authority.

When the overlay network is configured in a tree form, each peer 120 to 150 may transmit data to other peers 120 to 150 when data is received. In this type of configuration, data may be delivered to all peers 120 to 150 . At this time, each of the peers 120 to 150 may receive the BROADCAST_DATA message and check which peers have the transmission authority.

On the other hand, a peer without transmission authority may attempt to transmit data. A peer that receives data sent by a peer without sending permission removes the data sent by a peer without sending permission without forwarding it to other peers, unlike forwarding data sent by a peer with sending permission. It may respond with a failure to transmit data to a peer that does not exist.

10 shows a CTRL_AUTH request message for a request for data transmission right, and FIG. 11 shows a CTRL_AUTH response message for a request for data transmission right.

When the peers 120 to 150 without transmission authority want to transmit data, it may transmit a CTRL_AUTH message to the establishing peer 110 to request data transmission authority. The format of the CTRL_AUTH request message may be as shown in FIG. 10 .

In the tree-type overlay network, when the establishing peer 110 permits the request for the data transmission authority of the peers 120 to 150, after transmitting a CTRL_AUTH response message to the peers 120 to 150, as described in FIG. Similarly, information on the peer that has allowed the transmission right is added to the BROADCAST_DATA message and transmitted to the overlay network, for example, the peers 120 to 150 and/or the HOMS 200 . In addition, the establishing peer 110 may transmit an OverlayModification request message of the form shown in FIG. 6 to the HOMS 200 including the latest information of the peer that has permitted the transmission right, if necessary. In this case, the latest information of the peer that has permitted the transmission authority may be included in the peer information (auth-list) of the structure (TRANS_POLICY) shown in FIG. 2 . The format of the CTRL_AUTH response message is as shown in FIG. 11 .

Meanwhile, in the mesh-type overlay network, the establishing peer 110 may transmit a CTRL_AUTH response message to the peers 120 to 150 when permitting the request for data transmission authority of the peers 120 to 150 . Unlike the tree-type overlay network, in the mesh-type overlay network, there is no concept of data transfer, so the operation up to allowing the data transfer right is performed by exchanging messages directly between the opening peer 110 and the peer requesting the transfer right. can be done The establishing peer 110 may transmit an OverlayModification request message of the form shown in FIG. 6 to the HOMS 200 including the latest information of the peer that has permitted the transmission right, if necessary. In this case, the latest information of the peer that has permitted the transmission authority may be included in the peer information (auth-list) of the structure (TRANS_POLICY) shown in FIG. 2 .

12 shows a schematic block diagram of a peer according to an embodiment.

The peer 1200 may be the establishing peer 110 or the peers 120 to 150 described with reference to FIGS. 1 to 11 , and may perform the operation of the establishing peer 110 or the peers 120 to 150 . The peer 1200 may include a memory 1210 and a processor 1230 .

The memory 1210 may store instructions (or programs) executable by the processor 1230 . For example, the instructions may include instructions for executing an operation of the processor 1230 and/or an operation of each component of the processor 1230 .

The processor 1230 may process data stored in the memory 1210 . The processor 1230 may execute computer-readable code (eg, software) stored in the memory 1210 and instructions induced by the processor 1230 .

The processor 1230 may be a hardware-implemented data processing device having a circuit having a physical structure for executing desired operations. For example, desired operations may include code or instructions included in a program.

For example, a data processing device implemented as hardware includes a microprocessor, a central processing unit, a processor core, a multi-core processor, and a multiprocessor. , an Application-Specific Integrated Circuit (ASIC), and a Field Programmable Gate Array (FPGA).

An operation performed by the processor 1230 is substantially the same as that of the establishing peer 110 or peers 120 to 150 described with reference to FIGS. 1 to 12 . Accordingly, detailed description will be omitted.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the embodiment, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

Software may comprise a computer program, code, instructions, or a combination of one or more thereof, which configures a processing device to operate as desired or is independently or collectively processed You can command the device. The software and/or data may be any kind of machine, component, physical device, virtual equipment, computer storage medium or apparatus, to be interpreted by or to provide instructions or data to the processing device. , or may be permanently or temporarily embody in a transmitted signal wave. The software may be distributed over networked computer systems and stored or executed in a distributed manner. Software and data may be stored in one or more computer-readable recording media.

As described above, although the embodiments have been described with reference to the limited drawings, those skilled in the art may apply various technical modifications and variations based on the above. For example, the described techniques are performed in an order different from the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (20)

setting a data transmission control policy of peers participating in a distributed network; and
transmitting a message including the data transmission control policy to the distributed network;
Containing, data transmission control method.
According to claim 1,
The data transmission control policy is,
A data transmission control method, comprising setting data transmission rights.
3. The method of claim 2,
The data transmission control policy is,
A data transmission control method, further comprising setting a data transmission level.
4. The method of claim 3,
The setting of the data transmission level is,
setting of the transmission bitrate; and
Setting the number of pieces to be transmitted
A data transmission control method comprising one or more of:
5. The method of claim 4,
The data transmission control method, wherein only one value of the transmission bit rate and the number of pieces to be transmitted is set.
4. The method of claim 3,
The data transmission control policy is,
The method of claim 1, further comprising peer information related to the data transmission right.
According to claim 1,
The setting step is
setting the data transmission control policy when the peer requesting creation of the distributed network requests creation of the distributed network
Containing, data transmission control method.
8. The method of claim 7,
The transmitting step is
Transmitting a message requesting creation of the distributed network including the data transmission control policy to a distributed network management server
Containing, data transmission control method.
According to claim 1,
changing the data transmission control policy; and
Transmitting a message including the changed data transmission control policy to the distributed network
Further comprising, a data transmission control method.
According to claim 1,
Informing peers constituting the distributed network of data transmission rights set by the data transmission control policy
Further comprising, a data transmission control method.
a memory storing one or more instructions; and
a processor for executing the instructions
including,
When the instruction is executed, the processor,
A terminal for setting a data transmission control policy of a peer participating in a distributed network, and transmitting a message including the data transmission control policy to the distributed network.
12. The method of claim 11,
The data transmission control policy is,
Including the setting of data transmission authority, the terminal.
13. The method of claim 12,
The data transmission control policy is,
Further comprising the setting of the data transmission level, the terminal.
14. The method of claim 13,
The setting of the data transmission level is,
setting of the transmission bitrate; and
Setting the number of pieces to be transmitted
A terminal comprising at least one of them.
15. The method of claim 14,
The processor is
A terminal that sets only one of the transmission bit rate and the number of pieces to be transmitted.
14. The method of claim 13,
The data transmission control policy is,
The terminal further comprises peer information related to the data transmission right.
12. The method of claim 11,
The processor is
The terminal sets the data transmission control policy when the creation of the distributed network is requested, and transmits a message requesting creation of the distributed network including the data transmission control policy to a distributed network management server.
12. The method of claim 11,
The processor is
The terminal changes the data transmission control policy and transmits a message including the changed data transmission control policy to the distributed network.
12. The method of claim 11,
The processor is
A terminal that notifies peers constituting the distributed network of data transmission rights set by the data transmission control policy.
setting data transmission rights by an opening peer requesting creation of a distributed network;
transmitting, by the establishing peer, a message requesting creation of the distributed network including the data transmission right to a distributed network management server;
receiving, by the establishing peer, a response message to the request message from the distributed network management server;
receiving, by the establishing peer, a request for the data transmission right from any one of peers constituting the distributed network; and
changing, by the establishing peer, the data transmission right so that the data transmission right is granted to the one peer in response to the request for the data transmission right
Containing, data transmission control method.

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