KR20190074370A - Home network service system and method for providing home network service - Google Patents

Abstract

The present invention relates to a home network service system and a method of providing a home network service, capable of differentiating the quality of service according to a request of a user or a content provider. According to an embodiment of the present invention, the home network service system comprises: a portal server which receives a terminal reference policy for controlling quality of service (QoS) of a network service to be provided to each home customer terminal included in a home network from a home customer terminal, and receives a flow reference policy for controlling quality of service for a flow of each content service provided from a content provider server to the home network; and a software defined network (SDN) controller which controls an access network according to the terminal reference policy and flow reference policy received from the portal server and controls quality of service of the network service and a content service provided to the home network.

Description

[0001] The present invention relates to a home network service system and a method for providing a home network service,

The present invention relates to a home network service system and a home network service providing method, and more particularly, to a home network service system and a home network service providing method capable of differentiating service quality according to a request of a user or a content provider.

The home network is a system that allows a separate communication function to be provided in a home appliance so that it can be connected to the Internet as well as between the terminals. That is, it is a technology that can control major household appliances such as refrigerator, air conditioner, microwave oven, TV through wired and wireless Internet. It is possible to control the terminals using a remote controller or a portable terminal outside the house or the house.

In recent years, the home network has been developed to provide services using voice and video data such as VoIP, VOD, and IPTV. Accordingly, many methods for smoothly supporting the services have been researched.

In general, there is not a big problem to operate as a conventional Internet and data network in a state where the function of quality of service (QoS) is insufficient on a home network constructed and operated. However, when differentiated services such as VoIP, VOD, and IPTV services are accommodated, the quality of voice and video is inevitably degraded depending on the usage environment of the home network.

In the past, the Internet service provider controlled the quality of service by utilizing differentiated services (DiffServ), but in this case, since the Internet service provider controls the service provider unilaterally, there is a problem that it can not meet various demands of the home network user.

The present application provides a home network service system and a home network service providing method that can differentiate service quality according to a request of a user or a content provider.

A home network service system according to an embodiment of the present invention includes a terminal reference policy for controlling a quality of service (QoS) of a network service provided to each home customer terminal included in a home network from a home customer terminal, A portal server for receiving a flow policy from a content provider server for controlling a quality of service for a flow of each content service provided by the content provider server to the home network; And a SDN (Software Defined Network) controller for controlling an access network according to the terminal reference policy and flow reference policy received from the portal server and controlling a service quality of a network service and a content service provided to the home network .

Herein, the portal server may provide a configuration interface through which the home customer terminal accesses the terminal reference policy, and the priority or minimum set bandwidth for each home customer terminal included in the home network may be provided to the terminal It can be included in the standard policy.

Here, the portal server may provide an open API (Application Programming Interface) to the contents provider server and dynamically receive the flow reference policy through the open API (Application Programming Interface).

The SDN controller can control an optical line terminal (OLT), a home gateway of the home network, and can be implemented based on a Software Defined Network (SDN) have.

Wherein the SDN controller checks a priority order and a minimum set bandwidth of the home customer terminal according to the terminal reference policy when receiving a new flow from the home customer terminal, The acceptability of the flow and the acceptance condition can be determined.

The SDN controller may reduce the available bandwidth allocated to the existing flow to the minimum set bandwidth of the existing flow and allocate the new flow to the new flow using the bandwidth corresponding to the difference between the available bandwidth and the minimum set bandwidth have.

Wherein the SDN controller receives from the portal server information on an on-demand flow for which application of the flow reference policy is requested among a plurality of flows formed in the home network, and for the on-demand flow, The priority and available bandwidth can be allocated accordingly.

Here, the SDN controller may apply the flow reference policy to the flow prior to the UE reference policy, when the flow reference policy is received.

A portal server according to an embodiment of the present invention receives a terminal reference policy for controlling a quality of service (QoS) of a network service to be provided to each home customer terminal included in a home network from a home customer terminal A terminal reference policy setting unit; A flow reference policy setting unit configured to receive a flow reference policy for controlling a service quality of a flow of each content service provided from the content provider server to the home network by the content provider server; And a transmission unit for transmitting the terminal reference policy and flow reference policy to a SDN (Software Defined Network) controller.

A SDN (Software Defined Network) controller according to an embodiment of the present invention includes a receiving unit for receiving a terminal reference policy and a flow reference policy from a portal server; And a control unit for controlling the quality of service of the network service and the content service provided to the home network by adjusting the access network according to the terminal reference policy and the flow reference policy.

A method for providing a home network service according to an embodiment of the present invention is a method for controlling a quality of service (QoS) of a network service provided to each home customer terminal included in a home network from a home customer terminal A terminal-based policy setting step of receiving a terminal-based policy; A flow reference policy setting step in which the portal server receives a flow reference policy for controlling a service quality of a flow of each content service provided by the contents provider server from the contents provider server to the home network; The portal server transmitting the terminal reference policy and flow reference policy to a SDN (Software Defined Network) controller; The SDN controller receiving a terminal reference policy and a flow reference policy from a portal server; And a control step of controlling an access network according to the terminal reference policy and the flow criterion policy to control the quality of service of the network service and the content service provided to the home network by the SDN controller.

In addition, the means for solving the above-mentioned problems are not all enumerating the features of the present invention. The various features of the present invention and the advantages and effects thereof will be more fully understood by reference to the following specific embodiments.

According to the home network service system and the home network service providing method according to an embodiment of the present invention, service quality can be differentiated and provided according to a request of a user of the home network or a content provider.

According to the home network service system and the home network service providing method according to an embodiment of the present invention, a user can set a service quality such as a priority order for each home customer terminal included in the home network. Accordingly, various demands of the home network users can be satisfied, and the user's satisfaction with the home network service can be improved.

According to the home network service system and the home network service providing method according to an embodiment of the present invention, it is possible to apply a high quality of service to a specific content service provided by the content provider server. Accordingly, the content provider server can provide various types of content services such as a premium service.

1 is a schematic diagram illustrating a home network service system according to an embodiment of the present invention.
2 is a block diagram illustrating a portal server according to an embodiment of the present invention.
3 is a block diagram illustrating an SDN controller according to an embodiment of the present invention.
4 is a table showing a terminal reference policy and a flow reference policy according to an embodiment of the present invention.
5 is a flowchart illustrating a home network service method according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, in order that those skilled in the art can easily carry out the present invention. In the following detailed description of the preferred embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In the drawings, like reference numerals are used throughout the drawings.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . Also, to "include" an element means that it may include other elements, rather than excluding other elements, unless specifically stated otherwise. Also, the terms "module "," module "and the like described in the specification mean units for processing at least one function or operation, which may be implemented by hardware or software or by a combination of hardware and software.

1 is a schematic diagram illustrating a home network service system according to an embodiment of the present invention.

1, a home network service system according to an exemplary embodiment of the present invention includes a home network 10, a content provider server 20, an access network 30, a portal server 100, and an SDN controller 200 can do.

Hereinafter, a home network service system according to an embodiment of the present invention will be described with reference to FIG.

The home network 10 may be connected to an external communication network such as the Internet through the access network 30. The home network 10 may be a wired or wireless network formed between various home customer terminals 11 located at home. That is, various types of wired or wireless networks may be formed in the home, but when connecting to an external communication network such as the Internet, a wired network (Internet service provider) provided by an Internet service provider (ISP) Lt; / RTI >

The home customer terminals 11 included in the home network 10 may be terminals supporting wired or wireless communication. The wired terminal may include a personal computer (PC), an Internet Protocol Television (IPTV), a set-top box, a notebook-sized personal computer or a laptop computer. The wireless terminal includes a smart phone, A hand-held terminal such as a PC (Tablet PC), various IoT (Internet Of Things) devices, and the like. In addition, the wireless terminal may include anything that can perform voice or data communication wirelessly with different terminals, servers, systems, and the like. The home customer terminals 11 may be connected to the content provider server 20 via the Internet and may receive various content services from the content provider server 20. [

When the home network 10 is connected to an external communication network such as the Internet through the access network 30, the quality of service (QoS) can be controlled by the Internet service provider. There may be no problem when traffic is small in the home network 1. Various home customer terminals 11 using Internet services such as IPTV, IoT devices, smart phones, tablet PCs and the like are increasing in the home network 10 The service quality such as the bandwidth of the Internet service requested by the home network 1 such as VOD (Video on Demand) service, VoIP (Voice over Internet Protocol) service, online game or VR (Virtual Reality) Therefore, when the available resources are insufficient compared to the Internet service requested by the home network 10, a problem may arise in the service quality or the like provided to the home network 10. In the past, an Internet service provider uniformly controlled and provided a service quality such as a priority or a bandwidth. In this case, however, there were many cases in which the service quality required by users in the home network 1 is different. That is, conventionally, there is an inconvenience for users who use the Internet service because the request of the users of the home network is not reflected in the service quality control.

The content provider server 20 can provide various contents to the home network 10 through the Internet or the like. The content provider server 20 can access the home network 10 through the access network 30 provided by the Internet service provider and can transmit the contents to the home customer terminal 11 according to a request received from the user of the home network 10. [ And the like. Here, the content provided by the content provider server 20 may include movies, music, various application services such as games, software, and the like. The contents provided by the contents provider server 20 can be provided to the home customer terminal 11 in the home network 1 according to the service quality set by the Internet service provider. That is, in the related art, contents are provided according to a policy set by a service provider unilaterally, and a content provider has difficulty in providing a content service, for example, contents quality sensitive to users can not guarantee quality.

The access network 30 is a network for connecting the home network 10 with an external network such as the Internet. The access network 30 can connect the home network 10 to a wired optical communication network provided by an Internet service provider. The access network 30 may include an optical line terminal (OLT) 31 and a home gateway 32. The access network 30 may include a service of an Internet service provided to each home network 10 Quality (QoS) and the like can be controlled. The access network 30 may be implemented as a Software Defined Network (SDN), and may control the optical line terminal 31 and the home gateway 32 based on the software.

Conventionally, the Internet service is provided to each of the home customer terminals 11 located in the home network 1 according to the service quality set by the Internet service provider. For example, when simultaneous IPTV viewing and downloading of large-capacity data using a notebook computer are performed in the home network 10, IPTV data of which real-time performance is important is preferentially processed, and large-capacity data downloading is relatively delayed . However, from the viewpoint of the user, there may be a pressing need to urgently download and process important documents, in which case the user may want the download to be processed first rather than IPTV. As described above, when the Internet service provider provides the Internet service according to a standard unilaterally set by the Internet service provider, the service may be provided without matching the actual demand of the user using the Internet service.

The content provider server 20 may wish to provide a premium service of a predetermined quality or more to the home customer terminal 11 in the home network 10. Conventionally, since the service quality in the home network 10 is unilaterally set on the side of the Internet service provider, the service quality of the premium service may not be constantly maintained according to the circumstances of the home network 10. For example, when the content provider server 20 provides a high-quality premium VOD service in the home network 10, it is possible to provide a premium VOD service such as a VoIP service among various Internet services requested in the home network 1 Lt; / RTI > may be included. In this case, the quality of service is controlled so that the VoIP is preferentially processed rather than the premium VOD service, and the service quality of the premium VOD service may deteriorate.

On the other hand, in the home network service system according to an embodiment of the present invention, the user of the home network 10 or the content provider server 20 receives input on the service quality setting, respectively, Quot; service quality " Specifically, the portal server 100 and the SDN controller 200 according to an embodiment of the present invention allow the user to directly access the home client terminal 11 and the home client terminal 11, The set bandwidth and the like can be set. That is, the Internet service provider does not unilaterally set the quality of service provided to the home network 10, but rather, the priority of each of the home customer terminals 11 located at home through the portal server 100, It is possible to set the terminal reference policy for the service quality such as the set bandwidth. Therefore, it is possible to solve problems such as not meeting the demand of the user in the past.

In addition, the portal server 100 and the SDN controller 200 according to an embodiment of the present invention can set a service quality for a specific service flow through negotiation with the content provider server 20. [ That is, for content services that are sensitive to service quality, it is possible to set a certain quality of service through negotiation.

Therefore, according to the home network service system according to the embodiment of the present invention, since the service quality provided by the user of the home network 10, the content provider server 20, etc. to the home network 10 can be set, It is possible to provide customized services for each of the home customer terminals 11 included in the network 10 and to provide various types of content services such as high quality premium services.

Hereinafter, the portal server 100 and the SDN controller 200 according to an embodiment of the present invention will be described in detail.

The portal server 100 can communicate with the home customer terminal 11 or the content provider server 20 and can receive the service provided from the home customer terminal 11 or the content provider server 20 in the home network 10 An input to the quality can be received. That is, conventionally, the service quality of the Internet service provider is unilaterally controlled, but it is possible that the home customer terminal 11 or the content provider server 20 directly sets the service quality through the portal server 100.

Specifically, the portal server 100 can receive the terminal reference policy for controlling the service quality of the network service to be provided to each of the home customer terminals 11 included in the home network 10 from the home client terminal 11 have. Here, when the home customer terminal 11 accesses the portal server 100, the portal server 100 may provide a setting interface so that the home customer terminal 11 can input the terminal reference policy. That is, the home customer terminal 11 can easily set the terminal reference policy using the setting interface. The terminal reference policy is a policy for setting the quality of service for each of the home customer terminals 11 included in the home network 10 and is a policy for setting the priority among the home customer terminals 11, And a minimum set bandwidth to provide to the UEs. That is, when a plurality of home customer terminals 11 included in the home network 10 each connect to the Internet, it is possible to prioritize which home customer terminal 11 is to be provided with the Internet service, The minimum set bandwidth to be provided to each of the home customer terminals 11, and the like.

For example, service quality for each home customer terminal 11 can be set according to the terminal reference policy shown in the table of FIG. That is, the home customer terminals 11 can distinguish between "ID", "owner", "terminal type", "MAC address" Minimum setting bandwidth "and the like can be set. In the case of FIG. 4, since the priority of the laptop computer used by the father is higher than that of the IPTV, the service quality of the IPTV used by the family may be somewhat lowered when the father receives large files from the laptop computer for business purposes. If the Internet service provider unilaterally controls the service quality as in the conventional art, the service of the IPTV whose real-time property is important may be set higher than that of the Laptop computer. Here, the terminal reference policy can be set through consultation among users who use each home customer terminal 11 included in the home network 10. In this case, when the Internet service provider side unilaterally sets The convenience and reliability of all users in the home network 10 can be improved.

Meanwhile, the portal server 100 may receive the flow reference policy from the content provider server 20. [ The content provider server 20 can provide the content services to the home network 10. At this time, in order to control the quality of service for the flows of the respective content services, a flow policy is sent to the portal server 100 Can be input. Conventionally, an Internet service provider has unilaterally controlled the quality of content provided by the content provider server 20. However, among the various content services provided by the content provider server 20, content services sensitive to service quality may exist, and it is necessary to maintain predetermined service quality for the content services.

To this end, the portal server 100 may receive the flow-based policy from the content provider server 20 and transmit the flow-based policy to the SDN controller 200 to maintain the service quality according to the flow- . That is, the service provider of the Internet service provider can determine the service quality of each content service, rather than determining the service quality of the content service unilaterally. Here, when a flow reference policy is received, it can be applied with priority to other terminal reference policies and the like. The flow policy set by the content provider server 20 can be represented as a table in FIG. In other words, it is possible to confirm which content provider server 20 requests the flow-based policy through the "requestor" item, and the flow reference policy can be confirmed through the items "SRC IP / PORT", "DST IP / PORT" Can specify the flow of the content service to which the content service is to be applied. In addition, the minimum bandwidth required for the flow can be set through the item of "minimum setting bandwidth ".

In addition, the portal server 100 may provide an open API (application programming interface) to the content provider server 20 and may receive the flow policy from the content provider server 20 through the open API. That is, when the flow-based policy needs to be applied, the content provider server 20 may request the portal server 100 using the open API, and the portal server 100 may request the content provider server 20 You can dynamically apply flow-based policies for each flow. For example, the content provider server 20 can monitor the quality of the premium content service provided to the home customer terminal 11, and when the quality of the premium content service falls to a predetermined threshold, To the portal server (100). In this case, the portal server 100 may dynamically set the flow reference policy to be applied to the flow according to a request from the content provider server 20. [ Here, a flow in which a flow reference policy is set dynamically can be referred to as an on demand flow.

The portal server 100 can receive the terminal reference policy or the flow reference policy for the service quality from the home client terminal 11 or the content provider server 20 and then the portal server 100 can receive the SDN The controller 200 may transmit the terminal reference policy or the flow reference policy. That is, the SDN controller 200 can control the actual service quality by transmitting the respective terminal reference policies and flow reference policies for the service quality to the SDN controller 200.

The SDN controller 200 can control the quality of service of the network service and the content service provided to the home network 10. [ Here, the SDN controller 200 controls the access network 30 and can control the access network 30 through a software defined network (SDN). Accordingly, when the SDN controller 200 receives the terminal reference policy, the flow reference policy, and the like from the portal server 100, the SDN controller 200 can control the access quality of the access network 30 according to the received reference policies. The access network 30 may include an optical line terminal (OLT) 31 and a home gateway 32 connected to the home network 10. The SDN controller 200 may include an optical line terminal (31) and the home gateway (32), respectively.

Specifically, when the SDN controller 200 receives a request for a new flow from the home customer terminal 11, the priority order and minimum set bandwidth of the home customer terminals 11 can be checked according to the terminal reference policy. Thereafter, it is possible to determine the acceptance and acceptance conditions of the new flow in comparison with the existing flow formed in the home network 10. [ First, the SDN controller 200 can confirm the amount of traffic for a predetermined unit time (for example, 5 minutes) with respect to home customer terminals having an order higher than that of the home customer terminal requesting a new flow. That is, it is possible to confirm whether the bandwidth that can be allocated to the new flow remains by confirming the amount of traffic of the home customer terminals 11 of the prior ranking. If the bandwidth is insufficient, the available bandwidth set in excess of the minimum set bandwidth among the service flows of the home clients 11 in the prior order can be reduced to the minimum set bandwidth. If a minimum set bandwidth of the new flow is provided, a new flow can be added. In this case, the SDN controller 200 can accept the new flow and set the available bandwidth of the new flow. On the other hand, even when the minimum setting bandwidth is changed, the request for the new flow can be rejected when the minimum setting bandwidth for the new flow is not provided.

On the other hand, the SDN controller 200 can receive, from among a plurality of flows formed in the home network 10 from the portal server 100, information about the on-demand flow for which the application of the flow reference policy is requested. Here, the SDN controller 200 can receive contents included in the table table as shown in FIG. 4 with the on-demand flow. Accordingly, the SDNS controller 200 can determine which content provider server 20 has requested a flow-based policy application for which flow, and can set a priority and an available bandwidth for the flow according to the flow-based policy have. Here, the SDN controller 200 may apply the flow criterion policy in preference to the terminal criterion policy for the flow in which the flow criterion policy is received.

2 is a block diagram illustrating a portal server according to an embodiment of the present invention.

Referring to FIG. 2, the portal server according to an embodiment of the present invention may include a terminal reference policy receiving unit 110, a flow reference policy receiving unit 120, and a transmitting unit 130.

A portal server according to an embodiment of the present invention will be described with reference to FIG.

The terminal reference policy receiving unit 110 receives the terminal reference policy received from the home client terminal 11 by a terminal controlling the quality of service (QoS) of the network service to be provided to each of the home customer terminals 11 included in the home network 10. [ The base policy can be received. When the home customer terminal 11 accesses the portal server 100, the terminal reference policy receiving unit 110 may provide a setting interface so that the home customer terminal 11 can input the terminal reference policy. That is, the home customer terminal 11 can easily set the terminal reference policy using the setting interface. The terminal reference policy is a policy for setting the quality of service for each of the home customer terminals 11 included in the home network 10 and is a policy for setting the priority among the home customer terminals 11, And a minimum set bandwidth to provide to the UEs. That is, when a plurality of home customer terminals 11 included in the home network 10 each connect to the Internet, it is possible to prioritize which home customer terminal 11 is to be provided with the Internet service, The minimum set bandwidth to be provided to each of the home customer terminals 11, and the like.

The flow reference policy receiving unit 120 receives from the content provider server 20 a flow reference policy for controlling the quality of service for each content service provided by the content provider server 20 to the home network 10 .

Of the various content services provided by the content provider server 20, there may be content services that are sensitive to service quality, and it is necessary to maintain a predetermined quality of service for the content services. To this end, the flow reference policy receiving unit 120 may receive the flow reference policy from the content provider server 20, and may transmit the flow reference policy to the SDN controller 200, Can be maintained. That is, the service provider of the Internet service provider can determine the service quality of each content service, rather than determining the service quality of the content service unilaterally. Here, when a flow reference policy is received, it can be applied with priority to other terminal reference policies and the like.

The flow reference policy receiving unit 120 may provide an open API (application programming interface) to the content provider server 20 and may receive the flow reference policy from the content provider server 20 through the open API. That is, the content provider server 20 may request the flow-based policy receiving unit 120 using the open API when the flow-based policy needs to be applied.

The transmission unit 130 may transmit the terminal reference policy and the flow reference policy to the SDN (Software Defined Network) controller 200. The transmission unit 130 can receive the terminal reference policy or the flow reference policy for the service quality from the home customer terminal 11 or the content provider server 20 and then transmit the terminal reference policy or the flow reference policy to the SDN controller 200 You can pass the policy. That is, the SDN controller 200 can control the actual service quality by transmitting the respective terminal reference policies and flow reference policies for the service quality to the SDN controller 200.

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

Referring to FIG. 3, the SDN controller according to an embodiment of the present invention may include a receiving unit 210 and a control unit 220.

Hereinafter, an SDN controller according to an embodiment of the present invention will be described with reference to FIG.

The receiving unit 210 may receive the terminal reference policy and the flow reference policy from the portal server 100. The receiving unit 210 can receive the terminal reference policy, the flow reference policy, and the like through the wired or wireless communication with the portal server 100, and then the control unit 220 can perform control by utilizing the same.

The control unit 220 may control the quality of service of the network service and the content service provided to the home network 10 by adjusting the access network 30 according to the terminal reference policy and the flow reference policy. Here, the control unit 220 controls the access network 30 and can control the access network 30 through a software defined network (SDN). The access network 30 may include an optical line terminal (OLT) 31 and a home gateway 32 connected to the home network 10. The control unit 220 may include an optical line terminal 31 and the home gateway 32, respectively.

Specifically, when the control unit 220 receives a request for a new flow from the home customer terminal 11, the priority order and the minimum setting bandwidth of the home customer terminals 11 can be checked according to the terminal reference policy. Thereafter, it is possible to determine the acceptance and acceptance conditions of the new flow in comparison with the existing flow formed in the home network 10. [ Also, the controller 220 can receive information on the on-demand flow requested to be applied to the flow reference policy among the plurality of flows formed in the home network 10 from the portal server 100. [ The control unit 220 can determine which content provider server 20 has requested the application of the flow reference policy to which flow through the information of the received on-demand flow and, based on the flow reference policy, You can set the rank and available bandwidth. The control unit 220 can apply the flow criterion policy in preference to the terminal criterion policy for the flow in which the flow criterion policy is received.

5 is a flowchart illustrating a method of providing a home network service according to an embodiment of the present invention.

Referring to FIG. 5, a home network service providing method according to an embodiment of the present invention includes setting a terminal reference policy S10, a flow reference policy setting step S20, a policy transmitting step S30, and a controlling step S40. . ≪ / RTI >

Hereinafter, a method of providing a home network service according to an embodiment of the present invention will be described with reference to FIG.

In the terminal reference policy setting step S10, the portal server receives a terminal reference policy for controlling the quality of service (QoS) of the network service provided to each home customer terminal included in the home network from the home customer terminal can do. Here, when the home customer terminal accesses the portal server, the portal server may provide a setting interface so that the home customer terminal can input the terminal reference policy. That is, the home customer terminal can easily set the terminal reference policy using the setting interface. The terminal reference policy is a policy for setting a service quality for each of the home customer terminals included in the home network, and may include a priority among the home customer terminals, a minimum setting bandwidth to be provided to each of the home customer terminals, have. That is, when a plurality of home customer terminals included in the home network respectively access the Internet, it is possible to prioritize which home customer terminals are to be provided with the Internet service, and provide them to the respective home customer terminals And the minimum setting bandwidth to be set in advance. In this case, the terminal reference policy can be set through consultation among users who use each home customer terminal included in the home network. In this case, compared to the case where the Internet service provider side is unilaterally set, It is possible to improve convenience and reliability.

In the flow reference policy setting step S20, the portal server can control the quality of service for each content service provided from the content provider server to the home network by the content provider server. Among the various content services provided by the content provider server, content services sensitive to service quality may exist, and it is necessary to maintain a predetermined quality of service for the content services. To this end, the portal server can receive the flow reference policy from the content provider server, and can transmit the flow reference policy to the SDN controller to maintain the service quality according to the flow reference policy for the flow. That is, the service provider of the Internet service provider can not determine the service quality of the content service unilaterally, but the service provider server can determine the service quality of each content service. Here, when a flow reference policy is received, it can be applied with priority to other terminal reference policies and the like. Additionally, the portal server may provide an open API (application programming interface) to the content provider server, and may receive the flow policy from the content provider server through the open API. That is, the content provider server can make a request to the portal server using the open API when the flow criterion policy needs to be applied.

In the policy transfer step S30, the portal server can transmit the terminal reference policy and the flow reference policy to the SDN (Software Defined Network) controller. The portal server can receive the terminal reference policy or the flow reference policy for the service quality from the home customer terminal or the content provider server. The portal server can then transmit the terminal reference policy or the flow reference policy to the SDN controller. That is, the SDN controller can control the actual service quality by transmitting the respective terminal reference policy, flow reference policy for the service quality to the SDN controller.

In the control step S40, the SDN controller can control the service quality of the network service and the content service provided to the home network by adjusting the access network according to the terminal reference policy and the flow reference policy received from the portal server. Here, the SDN controller controls the access network, and can control the access network through a software defined network (SDN). Accordingly, when the SDN controller receives the terminal reference policy, the flow reference policy, and the like from the portal server, the SDN controller can control the access network according to each received reference policy to control the service quality. The access network may include an optical line terminal (OLT) and a home gateway connected to the home network, and the SDN controller may control the optical line terminal and the home gateway, respectively.

Specifically, when the SDN controller receives a request for a new flow from a home customer terminal, the priority order and minimum set bandwidth of the home customer terminals can be confirmed according to the terminal reference policy. Thereafter, the acceptance and acceptance conditions of the new flow can be determined in comparison with existing flows formed in the home network. First, the SDN controller can confirm the amount of traffic for a predetermined unit time (for example, 5 minutes) with respect to home customer terminals having an order higher than that of the home customer terminal requesting a new flow. That is, it is possible to confirm whether the bandwidth that can be allocated to the new flow remains by checking the amount of traffic of the home customer terminals of the previous ranking. If the bandwidth is insufficient, the available bandwidth set in excess of the minimum set bandwidth among the service flows of the prior-ranked home customer terminals can be reduced to the minimum set bandwidth. If a minimum set bandwidth of the new flow is provided, a new flow can be added. In this case, the SDN controller can accept the new flow and set the available bandwidth of the new flow. On the other hand, even when the minimum setting bandwidth is changed, the request for the new flow can be rejected when the minimum setting bandwidth for the new flow is not provided.

On the other hand, among the plurality of flows formed in the home network from the portal server, the SDN controller can receive information about the on-demand flow for which the application of the flow reference policy is requested. Accordingly, the SDNS controller can determine which content provider server has requested the application of the flow reference policy to which flow, and can set the priority and the available bandwidth for the flow according to the flow reference policy. Here, the SDN controller can apply the flow criterion policy in preference to the terminal criterion policy for the flow in which the flow criterion policy is received.

The methods according to embodiments of the present invention may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable recording medium. The computer readable recording medium may include a program command, a data file, a data structure, and the like, either singly or in combination. The computer-readable recording medium may include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like. In addition, the computer-readable recording medium may be distributed over a network-connected computer system so that computer readable codes can be stored and executed in a distributed manner.

The present invention is not limited to the above-described embodiments and the accompanying drawings. It will be apparent to those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: home network 11: home customer terminal
20: content provider server 30: access network
31: optical line terminal 32: home gateway
100: Portal server 110: Terminal reference policy receiving unit
120: Flow reference policy receiving unit 130:
200: SDN controller 210:
220:
S10: Terminal-based policy setting S20: Flow-based policy setting
S30: Policy transmission S40: Quality control of service

Claims (13)

A method of receiving a terminal reference policy for controlling quality of service (QoS) of a network service to be provided to each home customer terminal included in a home network from a home customer terminal, A portal server for receiving a flow reference policy for controlling a quality of service for a flow of each content service provided to the network; And
And a SDN (Software Defined Network) controller for controlling an access network in accordance with the terminal reference policy and the flow reference policy received from the portal server and controlling a service quality of a network service and a content service to be provided to the home network Network service system.
The system according to claim 1, wherein the portal server
Wherein the home interface provides the setting interface through which the home customer terminal accesses and inputs the terminal reference policy.
The system according to claim 1, wherein the portal server
And receives a priority or minimum set bandwidth for each of the home customer terminals included in the home network by including the priority or minimum set bandwidth in the terminal reference policy.
The system according to claim 1, wherein the portal server
(API) to the contents provider server, and dynamically receives the flow reference policy through the open API (Application Programming Interface).
2. The apparatus of claim 1, wherein the SDN controller
An optical line terminal (OLT), and a home gateway of the home network.
2. The apparatus of claim 1, wherein the SDN controller
Wherein the home network service system is implemented based on a Software Defined Network (SDN).
2. The apparatus of claim 1, wherein the SDN controller
And when the new flow is requested from the home customer terminal, checking the priority order and the minimum set bandwidth of the home customer terminal according to the terminal reference policy and comparing the priorities and the minimum set bandwidth with the existing flow formed in the home network, And determines a condition of the home network service.
8. The apparatus of claim 7, wherein the SDN controller
And allocates the available flow to the new flow using a bandwidth corresponding to a difference between the available bandwidth and the minimum set bandwidth, system.
2. The apparatus of claim 1, wherein the SDN controller
Claims: What is claimed is: 1. A home network system, comprising: a home server for receiving an on-demand flow from a portal server, To the home network service system.
10. The apparatus of claim 9, wherein the SDN controller
Wherein when the flow policy is received, the flow policy is applied to the flow in preference to the terminal policy.
A terminal reference policy setting unit for receiving a terminal reference policy for controlling quality of service (QoS) of a network service to be provided from each home customer terminal to each home customer terminal included in the home network;
A flow reference policy setting unit configured to receive a flow reference policy for controlling a service quality of a flow of each content service provided from the content provider server to the home network by the content provider server; And
And a transmitting unit for transmitting the terminal reference policy and the flow reference policy to a SDN (Software Defined Network) controller.
A receiving unit for receiving a terminal reference policy and a flow reference policy from the portal server; And
And a controller for controlling an access network according to the terminal reference policy and a flow reference policy to control a service quality of a network service and a content service provided to the home network.
A terminal reference policy setting step of the portal server receiving a terminal reference policy for controlling a quality of service (QoS) of a network service provided from each home customer terminal to each home customer terminal included in the home network;
A flow reference policy setting step in which the portal server receives a flow reference policy for controlling a service quality of a flow of each content service provided by the contents provider server from the contents provider server to the home network;
A policy transmitting step of the portal server transmitting the terminal reference policy and the flow reference policy to a SDN (Software Defined Network) controller; And
The SDN controller controls the access network according to the terminal reference policy and the flow reference policy received from the portal server and controls the service quality of the network service and the content service provided to the home network, Way.

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