KR102098807B1 - Method of providing service about Quality of Service by Internet Service Provider system, and IP address allocation server of ISP system for QoS service - Google Patents

Abstract

In a method of providing a quality of service (QoS) service of an ISP (Internet Service Provider) system, an IP (internet protocol) address allocation system included in the ISP system is included in the ISP system by a network bootstrap operation of the terminal. Checking the type information or service type information of the terminal transmitted through the network equipment, and the IP address allocation system based on the identified type information or service type information of the terminal, QoS service policy information for the terminal network equipment And provisioning through the process.

Description

Method of providing IP service of ISP system, and IP address allocation server of ISP system for providing IP service {Method of providing service about Quality of Service by Internet Service Provider system, and IP address allocation server of ISP system for QoS service}

The present invention relates to a machine to machine communication (M2M) technology, more specifically, to provide services such as IP (internet protocol)-CCTV (Closed Circuit Television) or home monitoring (home monitoring) QoS (Quality of Service) defined by an ISP system (ISP network) for an end-to-end section between a terminal (or gateway) and a service or application server (eg, a smart home service server) A method for providing a QoS service by an ISP system, which provides a service policy, and an IP address allocation server of the ISP system for providing QoS services.

The M2M market or the range of M2M solutions is gradually expanding from enterprise-oriented to consumer markets. Mainly, the corporate market such as telematics, remote meter reading, or location tracking was mainstream, but now, due to the expansion of user terminals targeting consumers, u-health, e-book, or smart home, etc. Expansion into the consumer market is progressing rapidly.

As the M2M market is gradually expanding to consumers who are sensitive to quality of service (QoS), the controversy over quality of service (QoS) has become an issue. The method of providing QoS for the M2M market is currently being discussed by standard organizations such as the European Telecommunications Standards Institute (ETSI), but there is no clear direction. The M2M terminal is subject to network quality competition with a general purpose terminal (for example, a personal computer (PC)) based on a best effort service (such as an Internet service), and competes in a network congestion situation. The dropped terminal may be a structure in which service provision is impossible. In particular, the terminal related to security control such as security (for example, home security) or monitoring (for example, home monitoring) is related to the life, property, or safety of an individual, and thus guarantees the quality of service (QoS). It must be done.

Regarding the QoS related progress of the M2M standard group, the requirements for the QoS field are still not established in the M2M standard group. The cause of this is that standard organizations (ETSI, etc.) activities are mainly performed on vendor / gateway (GW) and platform standards, and Internet service provider (ISP) activities are insufficient. In the state, it may not be easy to derive the requirements of the QoS field in the ISP's network domain. Therefore, in order to guarantee the quality of service (QoS) in a network congestion situation occurring in the network, the standard organization needs to establish requirements for QoS automatic provisioning and M2M Device / GW provided by the ISP.

1 is a view showing an example of a QoS service configuration according to the prior art.

A home network service providing method may be described as follows with reference to FIG. 1. In the M2M terminal (Device) or M2M gateway (Gateway) terminal, the service data of the web server application service server (application / svc server) is related to the type of the terminal or the service provided to the terminal through network equipment included in the ISP. It is provided with the best service (Best Effort), which is the same level of quality of service (QoS) as the general purpose terminal. That is, the general purpose terminal provided by the ISP network and all terminals in the M2M Device or Gateway are provided with services (service data) with the same quality of service. Therefore, since the service system shown in FIG. 1 has a structure in which loss of M2M data is forced to occur in a network congestion with general traffic due to Best Effort competition, data such as home security service in the service system of FIG. 1 In the event of a loss, it can be directly linked to an individual's property or life, causing serious consequences.

As another example of the prior art, a method of provisioning a QoS policy between a terminal and a platform (service server) in some Home Service Providers or solution vendors that are independent of the ISP system (ISP network) has been proposed. In the service method, QoS may be guaranteed within a Home Network Domain (device domain), but it may be a structure in which QoS service cannot be provided from an end-to-end perspective between a terminal and a service server.

In other words, QoS service is provided between a specific service terminal and a platform (service server) regardless of the QoS policy of the ISP system. In the above service providing method, a terminal in which QoS is to be guaranteed from the perspective of an ISP system may be provided with the same quality of service (QoS) as a general-purpose terminal.

The prior art has the following problems.

First, in establishing the QoS policy of a specific service provider or solution vendor that is not related to the ISP (Internet Service Provider) system, the specific service provider / solution vendor establishes a QoS policy that distinguishes the terminal type (terminal type). QoS within the domain (eg, Home Network Domain) is guaranteed, but it may be a structure in which end-to-end QoS service cannot be provided. In addition, since the QoS policy is determined during the bootstrap process of the terminal for providing a specific service, the corresponding process may also have a loss of traffic during the network congestion process, so it may be impossible to guarantee QoS in the local domain. .

Second, in the ISP system, it may not be possible to establish QoS policies for specific service providers or solution vendors. Due to the inability to distinguish the terminal type or service provided by a specific service provider / solution vendor, it may not be possible to establish QoS policy by an ISP system in the prior art.

Third, the prior art may have a structure in which collaboration between a service provider and an ISP for providing end-to-end QoS is impossible. In a situation in which a service provider and an ISP (or NSP: Network Service Provider) are physically or logically separated, provision of end-to-end QoS services may not be possible in the prior art.

The technical problem (object) to be solved by the present invention is not a QoS policy arbitrarily set by a user or a network service provider, but when a terminal such as an M2M terminal accesses an ISP system through a network bootstrap process. , ISP system to determine the QoS policy of the terminal and provisioning (provisioning) it, to provide a method for providing QoS service of the ISP system, and an IP address allocation server of the ISP system for providing QoS service.

In order to achieve the above technical problem, a method of providing a quality of service (QoS) service of an ISP (Internet Service Provider) system according to an embodiment of the present invention includes an IP (internet protocol) address allocation system included in the ISP system. Checking type information or service type information of the terminal transmitted through network equipment included in the ISP system by a network bootstrap operation of the network; And the IP address allocation system provisioning QoS service policy information for the terminal through the network equipment based on the identified type information or service type information of the terminal.

The method for providing QoS service of the ISP system enables the network equipment of the ISP system to check the trust of the provisioned QoS service policy information when the terminal requests Internet service through the network equipment. The method may further include checking the QoS service policy information using a QoS mapping table including a prefix corresponding to the terminal type information or service type information.

The terminal, in the IP address allocation system, IP address allocation request information having vendor specific information in a dynamic host configuration protocol option field (DHCP) including type information or service type information of the terminal. Can pass.

In the ISP address assignment system, when the type information of the terminal is a machine to machine communication (M2M) terminal and the service type information of the terminal is a security service, QoS service policy information of the M2M terminal is compared to gold policy information. It can be determined by silver policy information with low QoS.

The ISP address allocation system, when the type information of the terminal is an M2M gateway terminal, the QoS service policy information of the home monitoring terminal connected to the M2M gateway terminal has a lower QoS than silver policy information. It may be determined as information, and the QoS service policy information of the home appliance connected to the M2M gateway terminal may be determined as best effort policy information having a lower QoS than bronze policy information.

In order to achieve the above technical problem, an IP address allocation server of an ISP system for providing QoS service according to an embodiment of the present invention includes: a storage unit that stores QoS service policy information corresponding to type information or service type information of a terminal; A communication unit that receives IP address allocation request information including terminal type information or service type information from a terminal through network equipment included in the ISP system; And QoS service policy information for the type information or service type information of the terminal stored in the storage unit corresponding to the type information or the service type information of the terminal included in the IP address allocation request information of the terminal received by the communication unit. Determines the QoS service policy information of the terminal, allocates an IP address corresponding to the IP address allocation request information of the terminal received in the communication unit, and the communication unit is configured to determine the QoS service policy information and the assigned IP address of the determined terminal. It may include a control unit to control the provisioning (provisioning) to the terminal through the network equipment.

The IP address allocation request information may include vendor specification information of a DHCP option field including type information or service type information of the terminal.

When the type information of the terminal is an M2M terminal and the service type information of the terminal is a security service, the controller may determine QoS service policy information of the M2M terminal as silver policy information having a lower QoS than gold policy information.

When the type information of the terminal is an M2M gateway terminal, the QoS service policy information of the home monitoring terminal connected to the M2M gateway terminal is determined as bronze policy information having a lower QoS than silver policy information, and the M2M gateway terminal QoS service policy information of the home appliance connected to the service may be determined as best effort policy information having a lower QoS than bronze policy information.

A method for providing QoS service in an ISP system according to the present invention, and an IP address allocation server in an ISP system for providing QoS service, is an ISP network configuration method for providing M2M terminal and gateway QoS service, and is used for driving an ISP system. It is possible to ensure end-to-end QoS (End-to-End QoS) provision according to the QoS policy. Therefore, the present invention can construct an infrastructure for providing high quality at a reasonable cost without incurring a separate investment cost for infrastructure construction or infrastructure for providing QoS policies to the M2M market. That is, the present invention may be able to create various business models related to service quality and new revenue sources through the provision of the Network (ISP) Driven QoS policy rather than the Market (specific service provider) Driven. In addition, the present invention can secure integrity or reliability for service provision through QoS mapping table management.

The present invention can improve the quality of M2M service according to the provision of an optional QoS policy for a terminal in an M2M Device / Gateway domain. More specifically, the present invention can improve the quality of service through providing selective QoS according to the type of the terminal or the service type of the terminal for M2M IoT communication. The present invention can improve differentiated service provisioning and reliability through QoS provisioning mapped to a terminal type or a service type of the terminal. That is, it is possible to improve the reliability of service provision and high quality service through QoS guarantee of mission critical services such as security or security.

The present invention is an effective QoS provision method for guaranteeing service quality, and can overcome the limitations and implementation constraints of the local service quality guarantee provision method in the local domain.

The present invention can establish QoS requirements in standard organizations such as ETSI, and establish QoS requirements from an end-to-end perspective rather than a method for providing QoS in a local local domain.

In order to better understand the drawings used in the detailed description of the present invention, a brief description of each drawing is provided.
1 is a view showing an example of a QoS service configuration according to the prior art.
2 is a diagram for explaining a QoS service providing system 100 to which a method for providing QoS service in an ISP system according to an embodiment of the present invention is applied.
3 is a view for explaining a method for providing QoS service in an ISP system according to an embodiment of the present invention.
4 is a view for explaining an example of the QoS providing method compared to the present invention shown in FIG.
5 is a table illustrating an example of a QoS mapping table structure.
FIG. 6 is a diagram (information flow chart) for explaining an example of the operation of the QoS service providing system 100 to which the QoS service providing method of the ISP system shown in FIG. 2 or 3 is applied.
7 is a diagram (signal flow diagram) for explaining another operation example of the QoS service providing system 100 to which the QoS service providing method of the ISP system shown in FIG. 2 or 3 is applied.
8 is a view showing another example of the configuration of the QoS service compared with the present invention.
9 is a diagram illustrating a method of providing QoS service in an ISP system according to an embodiment of the present invention compared to FIG. 8.
FIG. 10 is a block diagram illustrating an embodiment 300 of the IP address assignment system of the ISP system shown in FIG. 2 or FIG. 3 or FIG. 6 or FIG. 7 or FIG. 9.

In order to fully understand the present invention and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the contents described in the accompanying drawings, which illustrate embodiments of the present invention.

Hereinafter, the present invention will be described in detail by explaining embodiments of the present invention with reference to the accompanying drawings. In describing the present invention, when it is determined that detailed descriptions of related known configurations or functions may obscure the subject matter of the present invention, detailed descriptions thereof will be omitted. The same reference numerals in each drawing may denote the same components.

The terms used herein are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, the terms “include” or “have” are intended to indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, one or more other features. It should be understood that the existence or addition possibilities of fields or numbers, steps, operations, components, parts or combinations thereof are not excluded in advance.

Unless defined otherwise, terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains. Terms such as those defined in a commonly used dictionary should be interpreted as having meanings consistent with meanings in the context of related technologies, and should not be interpreted as ideal or excessively formal meanings unless explicitly defined herein. Does not.

2 is a view for explaining a QoS service providing system 100 to which a method for providing QoS service of an ISP system according to an embodiment of the present invention is applied.

Referring to FIG. 2, the QoS service providing system 100 is, for example, a smart home system, a terminal and a gateway domain (device / gateway domain) 110, and a network domain (network domain) 145 It includes. The QoS service providing system 100 may be an ISP network configuration system for providing QoS services for M2M terminals and gateways.

The terminal and gateway domain (device / gateway domain) 110 is, for example, a terminal and a gateway system that is arranged (installed) in a home, and may be installed in a front door of a home (M2M device) ), IP-CCTV 115, M2M terminal, sensor information collection terminal (M2M device) 125, and M2M gateway terminal 130. The sensor information collection terminal (M2M device) 125 may collect sensor information from various sensor devices 120 such as a video camera (for example, an infrared video camera) that may be installed in a window of a home. . The M2M gateway terminal 130 includes a home monitoring terminal 135, such as a web camera, which can be installed in a personal computer (PC) such as a room in a home through a wireless communication network or a wired communication network, and a general purpose ( general purpose) A home appliance such as a refrigerator 140, which is an M2M terminal, is connected.

The network domain (network domain) 145 is a network system, an IP address assignment system 150 and network equipment 155 included in an ISP system, and a web server application or service system (application / svc system) 160 It includes. The application / svc system 160 includes a CCTV service server (CCTV), a security service server (SEC), a home monitoring service server (MON), and a home appliance service server (HOME).

The CCTV service server (CCTV) may be a server that manages security information (secure video information) collected by the IP-CCTV 115 or operation control such as on or off of the IP-CCTV 115. The security service server (SEC) may be a server that manages security sensor information collected by the sensor information collection terminal 125 or operation control such as on or off of the sensor information collection terminal 125. The home monitoring service server (MON) may be a server that manages security information (security video information) collected by the home monitoring terminal 135 or operation control such as on or off of the home monitoring terminal 135. The home appliance service server (HOME) may be a server that manages operation control such as on or off of the home appliance 140.

Network equipment 155 and IP address assignment system included in the IP-CCTV 115, the sensor information collection terminal (M2M device) 125, and the M2M gateway terminal 130, respectively, in the network domain 145 When a network bootstrap operation is performed on the 150, the IP address allocation system 150 may perform an IP-CCTV 115 through the network equipment 155, and a sensor information collection terminal (M2M device) 125. , And provisioning operation for providing QoS service policy information for each of the M2M gateway terminals 130.

After the QoS provisioning operation is performed, each of the IP-CCTV 115, the sensor information collection terminal (M2M device) 125, and the M2M gateway terminal 130 each application / svc through the network equipment 155 By accessing the system 160, information related to a corresponding service can be transmitted or received. When each of the IP-CCTV 115, the sensor information collection terminal (M2M device) 125, and the M2M gateway terminal 130 uses the corresponding service, QoS priority, which is QoS service policy information in a service packet, is used. (Or QoS class) is marked (or set). The network equipment 155 may remark (or modify) QoS for an unregistered terminal accessing the network equipment 155. That is, the network equipment 155 may modify the QoS priority of the corresponding terminal when the QoS priority, which is QoS service policy information, in the delivered service packet is not the QoS priority registered in the corresponding terminal.

2, an embodiment of a method for providing QoS service in an ISP system according to the present invention can be described as follows.

An embodiment of the method for providing QoS service of the ISP system includes an IP-CCTV 115, a sensor information collection terminal (M2M device) 125, and a home monitoring terminal 135 and an M2M gateway connected to the home appliance 140. The process of classifying the type of the terminal or the service type of the terminal in the IP address allocation system 150 of the ISP system through the network bootstrap process of the terminal 130 (step), the type or terminal of the terminal The process of determining the QoS policy (QoS service policy information) mapped to the service type of the ISP in the IP address allocation system 150 of the ISP system, the mapped QoS to the corresponding terminal through the network bootstrap process ISP system for the process of automatically provisioning (or applying) the policy (QoS service policy information), and for securing the reliability of the mapped QoS policy and remarking the QoS of the unauthorized (unregistered) terminal. It may include a process of mapping the QoS policy of the terminal in the network equipment 155 of the. Through the above process (step), the IP-CCTV 115, the sensor information collection terminal (M2M device) 125, and the home monitoring terminal 135 and the M2M gateway terminal 130 connected to the home appliance 140 are , QoS policy provided by ISP system enables end-to-end QoS (between device / gateway domain 110 and application / svc system 160 with ISP system as intermediate network) even in network competition. Guaranteed services are available.

In relation to the classification of the type of M2M terminal (eg, IP-CCTV 115) or M2M gateway terminal 130 or the service type of the terminal for QoS policy determination in the IP address allocation system 150 of the ISP system , The present invention uses Network Bootstrap (DHCP (dynamic host configuration protocol), etc.), which is an essential element for providing Internet service in an ISP. Since Network Bootstrap is an essential process for providing Internet service, QoS priority may be mapped to a high level (for example, a gold grade). In the standard protocol for allocating the IP address, an option field capable of distinguishing the type of the terminal or the service type of the terminal may be used in DHCP. That is, the type of the terminal or the service type of the terminal may be identified through a DHCP option 60 (vendor class identifier) or option 77 (user class identifier) field.

The IP address allocation system 150 of the ISP system determines the QoS policy through a specific terminal type or service classification included in the option 60 or 77 field value of DHCP, which is an IP address allocation protocol. The IP address assignment system 150 of the ISP system may determine the QoS policy using vendor specific information of a DHCP option used in a network bootstrap process (vendor specific information set in a DHCP option). If the field value is not mapped in the IP address allocation system 150 of the ISP system, automatic provisioning of the QoS policy for the terminal is not performed.

On the other hand, the network equipment 155 included in the Access Network and the Core Network of the Network Domain 145 manages a QoS mapping table for providing a QoS policy to secure integrity and reliability for the QoS policy. That is, the QoS policy set arbitrarily is not trusted.

In the QoS remarking policy performed in the network equipment 155, the QoS priority generated in the terminal not registered in the QoS mapping table is not trusted, and the QoS priority is remarked as Best Effort. )do.

As described above, the QoS service providing method of the ISP system according to the present invention provides QoS policy (QoS service policy information) for the M2M terminal in the Device / Gateway Domain 110. Specifically, the present invention prioritizes QoS for a terminal in which data transmission itself is important (eg, IP-CCTV 115 and sensor information collection terminal (M2M device) 125) in connection with personal property or life. The priority (priority) is provided as high as Gold (or Gold class (Gold class) or Silver (Silver class (Gold class)), for the simple home monitoring terminal 135, QoS medium priority Bronze (Bronze class (Gold class) )), And may be provided as a best-effort service (Best Effort), which is a lower priority of QoS, for a general-purpose M2M terminal (eg, refrigerator 140, audio, or PC).

In addition, the present invention provides QoS policy determination and automatic provisioning operation for the M2M terminal using the Network Bootstrap process in the IP address allocation system 150 of the ISP system for providing E2E (end-to-end) QoS. To perform. In general, since the Network Bootstrap process is directly related to the use of the Internet service, the QoS priority is set high in the IP address allocation system 150 of the ISP system (generally, Gold Priority is set). Therefore, the Network Bootstrap process, which has no possibility of data loss at the initial stage of service, can be used for QoS policy decision and provisioning. In addition, in the present invention, the IP address allocation system 150 of the ISP system recognizes whether the M2M terminal (eg, IP-CCTV 115) or the type of the M2M gate terminal 130 or the service type of the terminal is recognized in the Network Bootstrap process. You can perform QoS policy decision and automatic provisioning by performing in. The M2M terminal or the M2M gate terminal may apply the QoS policy provisioned by the IP address allocation system 150 of the ISP system to its own terminal.

In addition, the present invention can provide the integrity and reliability of the QoS policy determined by the IP address allocation system 150 of the ISP system. That is, the present invention can check the integrity and reliability of the QoS policy applied to the M2M terminal (eg, IP-CCTV 115) or M2M gateway terminal 130 through the network equipment 155 of the ISP system. In case of trust in the QoS policy arbitrarily set by the user, there is a possibility of misuse or abuse of QoS, so the QoS mapping table of the terminal to secure the integrity or reliability of the determined QoS in the network equipment 155 of the ISP system Can manage.

In addition, the present invention can constitute an end-to-end QoS providing infrastructure. That is, the present invention provides the IP address allocation system 150 of the ISP system, performs the QoS priority determination and QoS provisioning of the M2M terminal or M2M gateway terminal using the Network Bootstrap process, and then automatically provisions the QoS (provisioning). The applied QoS priority is applied by the M2M terminal or the M2M gateway terminal, and the integrity and reliability of the QoS policy are provided through the network equipment 155 of the ISP system in the Network Domain 145, and the terminal ↔ Network Domain 145 It provides End-to-End QoS service between ISP system ↔ Application Domain (160).

3 is a view for explaining a method for providing QoS service in an ISP system according to an embodiment of the present invention.

3 and 2, an ISP platform capable of responding to an IP address assignment system (150 in FIG. 2) of an ISP system, which is an ISP network, is a broadband home router (BHR) that is a gateway of a home network. ) And a terminal that connects to the ISP platform by a network bootstrap operation through a network equipment (155 in FIG. 2) of an ISP network (IP-CCTV 115 having a high QoS priority such as a video providing terminal) ) Or, for example, by determining the QoS policy for the terminal by classifying the type or service type of the lowest priority PC (personal computer), and then determining the QoS for the terminal through network equipment (155 in FIG. 2). Provision policies. A home service provider corresponding to the application or service system of FIG. 2 (160 of FIG. 2) may be connected (connected) to the ISP platform through a network. When the video providing terminal starts the corresponding Internet service after applying the provisioned QoS policy, the network equipment 155 checks the integrity and reliability of video traffic. Since the video data has a high QoS priority (reliability), video traffic is not lost in a network congestion situation. When the PC starts the corresponding Internet service by arbitrarily setting QoS (for example, a silver grade) without applying the provisioned QoS policy, the network equipment 155 provides integrity and integrity of PC data. Check the reliability. Since the PC data may be set (registered) as the best effort with the lowest QoS priority in the network equipment 155 or the QoS policy of the PC may not be set in the QoS policy of the network equipment 155, the network equipment ( 155) may cause loss of PC traffic in a network congestion situation by remarking the QoS policy of PC data with non-trust best effort. Accordingly, the present invention provides an end-to-end QoS service from a home terminal (for example, a video providing terminal or a PC) which is an M2M terminal that is disposed in a home using the ISP platform and network equipment to a service provider home service system. Can be guaranteed.

4 is a view for explaining an example of a QoS providing method compared to the present invention shown in FIG.

Referring to FIG. 4, an example of providing a QoS service provided between a home service provider and a terminal irrelevant to an ISP system (ISP network) is provided. In the case of the system shown in FIG. 4, it is a method of provisioning a QoS policy between a terminal and a Home Service Provider by a Home Service Provider (QoS manager of the Home Service Provider) independent of the ISP system. Therefore, since it is a QoS policy that operates independently of the ISP system, QoS within a Device / Gateway Domain including a video providing terminal and a PC can be guaranteed, but the QoS providing system shown in FIG. 4 is an ISP system that is a Network Domain. It has a structure that cannot guarantee QoS by QoS Remarking policy of. That is, the ISP network (network equipment of the ISP network) may remark (correct) the QoS policy values that are not trusted. As a result, loss of video or PC traffic may occur in a network congestion situation in an ISP network.

An operation embodiment of the method for providing QoS service of the ISP system shown in FIG. 2 or 3 will be described as follows.

2 or 3, the IP address allocation system 150 of the ISP system determines the QoS policy mapped to the terminal type of the M2M terminal (Device) or the M2M gateway terminal (Gateway) or the service type of the terminal, and the M2M Automatic provisioning is performed with a device or an M2M gateway terminal. QoS policy mapping mapped to the type or service type of the M2M terminal may be made through an M2M terminal type or a service type prefix (or identifier) of the M2M terminal in the ISP system.

For example, when the separator is M2M_SEC_xxxx, since the terminal type is M2M and indicates that the service is SEC (security), the QoS policy may be determined as a silver policy. When the separator (prefix) is M2M_HOME_MON_xxxx (or M2M_HOME_SEC), since the terminal type is M2M and indicates that the service is home monitoring, the QoS policy may be determined as a bronze policy. When the separator (prefix) is M2M_GW_TOTAL, the terminal type is M2M and indicates that it corresponds to the gateway (130 in FIG. 2), so the QoS policy can be determined as a multi-QoS policy. That is, when the separator (prefix) is M2M_HOME_SEC among M2M_GW_TOTAL, the QoS policy may be determined as a bronze policy, and when the separator (prefix) is M2M_HOME_REFRI among the M2M_GW_TOTAL, the QoS policy may be determined as a best effort (Best Effort) service. For other terminals, it may be determined as a low QoS policy, Best Effort. In the case of QoS policy automatic provisioning, provisioning may be performed on the analyzed information through a network bootstrap process. In addition, in the case of automatic provisioning of QoS policies, the dynamic address configuration protocol (DHCP) option 43 (vendor specific information) includes a QoS policy value mapped to the type or service type of the M2M terminal, and the IP system of the ISP system is assigned. The 150 may perform provisioning on an M2M terminal or an M2M gate terminal.

The QoS policy integrity and reliability management operation by the network equipment 155 of the ISP system is described as follows.

In the case of QoS mapping table management, a delimiter (Prefix) for managing the QoS mapping table is set in the network equipment 155 in the Network Domain 145 as shown in FIG. 5. That is, when a specific option value starts with 'M2M_' in the Network Bootstrap process by the M2M terminal, it is set to manage in the QoS mapping table. This may mean pre-configuration. 5 is a table illustrating an example of a QoS mapping table structure. M2M_HOME_MON_xxx in FIG. 5 may indicate M2M_HOME_SEC in FIG. 2.

In the case of the operation of performing QoS remarking by the network equipment 155 of the ISP system, the QoS policy generated in the terminal managed by the QoS mapping table is trusted, and remarking is not performed. However, it does not trust the QoS policy set arbitrarily in the terminal not managed by the QoS mapping table, and performs remarking with Best Effort.

In the QoS Enforcement (enforcement) of the M2M terminal or the M2M gateway terminal 130 such as the IP-CCTV 115 of FIG. 2, the QoS policy determined by the IP address allocation system 150 of the ISP system by the Network Bootstrap process is M2M. Applied to the terminal or M2M gateway terminal. The M2M terminal or the M2M gateway terminal generates service or application data mapped to the applied QoS policy. However, the M2M gate terminal must generate data corresponding to the QoS mapped to the corresponding M2M terminal (Device) accessing the M2M gate terminal after managing the QoS profile.

FIG. 6 is a diagram (information flow chart) for explaining an example of the operation of the QoS service providing system 100 to which the QoS service providing method of the ISP system shown in FIG. 2 or 3 is applied. FIG. 6 shows marking with a relatively high class QoS (high QoS) such as an M2M terminal 115 including a Device Service Capabilities Layer (DSCL) and optionally a silver class (silver policy information). It may indicate (or set) the service flow of the PC. The M2M terminal 115 may include any one of the IP-CCTV 115 and the M2M terminal 125 shown in FIG. 2.

6, and 2 or 3 or 5, first, the network equipment 155 included in the access network (access network) set the QoS rule, such as Gold Queue or Silver Queue, IP address allocation system ( 150) maps the type of terminal or the service type of the terminal and QoS policy to each other.

Next, the M2M terminal 115 performs the following network bootstrap process. The M2M terminal 115 requests the IP address allocation system 150 through the network equipment 155 to allocate an IP address with DHCP option 60: M2M_SEC_xxxx. In response to the IP address allocation request of the M2M terminal 115, the network equipment 155 uses the QoS mapping table included in the network equipment 155, such as the QoS mapping table of FIG. 5, to secure the M2M terminal as a security terminal ( For 115), QoS trust is mapped. In addition, in response to the IP address allocation request of the M2M terminal 115 through the network equipment 155, the IP address allocation system 150 may check the DHCP option and determine the QoS policy (QoS service policy information) as silver. have. Thereafter, the IP address allocation system 150 provisions the QoS policy determined by the IP address and the silver to the M2M terminal 115 through the network equipment 155.

Next, the M2M terminal 115 applies the QoS policy in silver in response to provisioning information of the IP address allocation system 150 (or enforces) the security included in the application or service system 160 A security service connection to a security system (CCTV or SEC in FIG. 2) is requested from the network equipment 155. The network equipment 155 and the M2M terminal 115 by confirming a trust mapping through the QoS mapping table of the network equipment 155 such as the QoS mapping table of FIG. 5 in response to the request. For the Internet communication service between the security systems 160, even in a network congestion situation, it is possible to always guarantee the silver QoS priority.

A personal computer (PC) whose QoS class is set to silver (silver) requests the Internet service to the network equipment 155. The network equipment 155 confirms a mismatch of the trust mapping through the QoS mapping table of the network equipment 155 such as the QoS mapping table of FIG. 5 in response to the request of the PC and confirms (mismatch) the PC. Remarking (modifying) QoS with Best Effort. As a result, traffic (data) between a PC and a server in a network domain may be lost in a network congestion situation. The QoS policy of the PC may be stored (registered) with the best effort in the QoS mapping table or may not be stored in the QoS mapping table.

7 is a diagram (signal flow diagram) for explaining another operation example of the QoS service providing system 100 to which the QoS service providing method of the ISP system shown in FIG. 2 or 3 is applied. 7 may show a service flow of the M2M gateway terminal 130 including the Gateway Service Capabilities Layer (GSCL). The REFRI and SEC included in the gateway domain (GW domain) 116 may indicate the home monitoring terminal 135 and the refrigerator terminal 140 shown in FIG. 2.

7, and 2 or 3 or 5, first, the network equipment 155 included in the access network (access network) set the QoS rule, such as Gold Queue or Silver Queue, IP address allocation system ( 150) maps the type of terminal or the service type of the terminal and QoS policy to each other.

Next, the M2M gateway terminal 130 performs the following network bootstrap process. The M2M gateway terminal 130 requests the IP address assignment system 150 through the network equipment 155 to allocate an IP address with DHCP option 60: M2M_GW_TOTAL. In response to the IP address allocation request of the M2M gateway terminal 130, the network equipment 155 uses the QoS mapping table of the network equipment 155, such as the QoS mapping table of FIG. 5, to provide QoS reliability for the M2M gate terminal 130. Map (trust). In addition, in response to the IP address allocation request of the M2M gate terminal 130 through the network equipment 155, the IP address allocation system 150 checks the DHCP option and QoS of the home monitoring terminal 135, which is a home security device (SEC). The policy (QoS service policy information) may be determined as silver (or bronze) and the QoS policy of the refrigerator 140 other than the home security device (SEC) as the best effort. Then, the IP address allocation system 150 provisions the QoS policy determined by the IP address and the Silver and best effort to the M2M gate terminal 130 through the network equipment 155.

Next, the M2M gateway terminal 130 accesses the QoS policy determined as Silver and best effort in response to the provisioning information of the IP address allocation system 150 to the M2M gateway terminal 130 This is applied (or enforced) to the home monitoring terminal 135 and the refrigerator 140.

Next, the home monitoring terminal 135 in which the QoS level is set to silver is a home security system (home security) included in the application or service system 160 through the M2M gateway terminal 130. 2, the network service 155 is requested to access the secure service. The network equipment 155 and the M2M terminal 115 by confirming a trust mapping through the QoS mapping table of the network equipment 155 such as the QoS mapping table of FIG. 5 in response to the request. For the Internet communication service between the home security systems 160, even in a network congestion situation, it is possible to always guarantee the silver QoS priority.

Next, the home appliance service server (home appliance) in which the refrigerator 140 having the QoS class set as the best effort is included in the application or service system 160 through the M2M gateway terminal 130 ) (Home of FIG. 2) requests the network equipment 155 to access the home appliance control service. The network equipment 155 confirms trust mapping through the QoS mapping table of the network equipment 155 such as the QoS mapping table of FIG. 5 in response to the request of the refrigerator 140. Since the QoS policy of the refrigerator 140 is the best effort, traffic (data) between the refrigerator 140 and the home appliance service server in the network domain may be lost in a network congestion situation. have.

A method for providing QoS service in an ISP system according to an embodiment of the present invention will be described as follows with reference to FIGS. 2, 3, 5, 6, or 7.

In the method of providing QoS service of the ISP system, the IP address allocation system 150 included in the ISP system is network equipment included in the ISP system by a network bootstrap operation of the terminal such as the IP-CCTV 115. Checking the type information or service type information (for example, M2M_SEC_xxxx) of the terminal transmitted through (155), and the IP address assignment system based on the identified type information or service type information of the terminal, the terminal It may include provisioning QoS service policy information for the network equipment 155 through the provisioning (provisioning).

In the method for providing QoS service of the ISP system, when the network equipment 155 of the ISP system requests the Internet service through the network equipment 155, the reliability of the provisioned QoS service policy information is trusted. The method may further include checking the QoS service policy information by using a QoS mapping table including a prefix corresponding to the type information or service type information of the terminal so as to check. In the QoS mapping table, QoS service policy information corresponding to terminal type information or service type information may be stored. In another embodiment of the present invention, the IP address allocation system may control to store (set) QoS service policy information corresponding to type information or service type information of the terminal in the QoS mapping table.

The terminal requests an IP address assignment to the IP address allocation system 150 with vendor specific information of a dynamic host configuration protocol option field including type information or service type information of the terminal. Information can be delivered.

In the ISP address assignment system, when the type information of the terminal is an M2M terminal such as IP-CCTV 115 and the service type information of the terminal is a security service, the QoS service policy information of the M2M terminal is a gold policy. It can be determined by silver policy information with lower QoS than information. The ISP address allocation system, when the type information of the terminal is an M2M gateway terminal (130 in FIG. 2), the QoS service policy information of the home monitoring terminal 135 connected to the M2M gateway terminal 130 is gold. It is determined as bronze policy information having a lower QoS than policy information, and the QoS service policy information of a household appliance such as a refrigerator 140 connected to the M2M gateway terminal 130 has a lower QoS than bronze policy information. (best effort) policy information. In order of gold policy information, silver policy information, bronze policy information, and best effort policy information, the bandwidth may be reduced.

8 is a view showing another example of the configuration of the QoS service compared to the present invention. 8 may be a diagram corresponding to FIG. 4.

Referring to FIG. 8, QoS is guaranteed in the home terminal or the home gateway 11, but the QoS policy is provided by an ISP system including a Layer 3 switch 12, an edge router 13, and an IP address assignment system 14. Layer 3 switch (12) and edge router (13) included in the network equipment of the ISP system disposed outside the home terminal or Home gateway (11) by determining the QoS policy by the home service provider (15) without being determined , And QoS in the network including the Home service provider (15).

9 is a diagram illustrating a method of providing QoS service in an ISP system according to an embodiment of the present invention compared to FIG. 8. 9 may be a diagram corresponding to FIG. 3.

Referring to FIG. 9, the QoS policy is determined by the IP address allocation system 104 of the ISP system, and the layer 3 switch 102, which is an IP switch included in the network equipment of the ISP system, and the edge router 103, which is an end router, are shown. By guaranteeing the integrity and reliability of the QoS policy (again), unlike the QoS service providing method of FIG. 8, end-between the home terminal or the Home gateway 101 and the Home service server, the Home service provider 105 The to-end QoS service can be guaranteed.

FIG. 10 is a block diagram illustrating an embodiment 300 of the IP address assignment system of the ISP system shown in FIG. 2 or FIG. 3 or FIG. 6 or FIG. 7 or FIG. 9.

Referring to FIGS. 10 and 2 or 3 or 6 or 7 or 9, an IP address allocation server (or DHCP server) 300 for providing QoS service, which is an IP address allocation system of an ISP system, of the terminal As a server capable of controlling QoS, a communication unit 305, a storage unit 310, and a control unit 315 are included.

The storage unit 310 stores QoS service policy information corresponding to type information or service type information (eg, M2M_SEC_xxxx) of the terminal, such as IP-CCTV 115.

The communication unit 305 receives the IP address allocation request information including the terminal type information or the service type information from the terminal through the network equipment 155 included in the ISP system. The IP address allocation request information may include vendor specification information of a DHCP option field including type information or service type information of the terminal.

The control unit 315 is connected to the type information or service type information of the terminal stored in the storage unit 310 corresponding to the type information or service type information of the terminal included in the IP address allocation request information of the terminal received by the communication unit 305. The QoS service policy information of the terminal is determined by referring to the QoS service policy information for the terminal, and an IP address corresponding to the received IP address allocation request information of the terminal is assigned to the communication unit 305, and the communication unit 305 determines the determined terminal The QoS service policy information and the assigned IP address are controlled to be provisioned (transmitted or provided) to the terminal through the network equipment 155.

When the type information of the terminal is an M2M terminal and the service type information of the terminal is a security service, the controller 315 may provide QoS service policy information of the M2M terminal with a lower QoS than gold policy information. It can be decided by policy information. On the other hand, when the type information of the terminal is the M2M gateway terminal 130, the control unit 315 provides QoS service policy information of the home monitoring terminal 135 connected to the M2M gateway terminal 130 rather than silver policy information. It can be determined as low bronze policy information, and QoS service policy information of a home appliance such as a refrigerator 140 connected to the M2M gateway terminal 130 can be determined as best effort policy information having a lower QoS than bronze policy information.

The control unit 315 performs the function of a central processing unit (CPU) and controls the overall operation of the components (communication unit 305 and storage unit 310) included in the IP address allocation server 300. In another embodiment of the present invention, the storage unit 310 may be disposed in the control unit 315.

The components or “~ units” or blocks or modules used in the present embodiment are software, such as tasks, classes, subroutines, processes, objects, execution threads, and programs performed in a predetermined area in memory or , May be implemented with hardware such as a field programmable gate array (FPGA) or an application-specific integrated circuit (ASIC), and may also be made of a combination of the software and hardware. The component or '~ unit' may be included in a computer-readable storage medium, or a part of the computer may be distributed and distributed.

As described above, the embodiments have been disclosed in the drawings and specifications. Here, although specific terms are used, they are used only for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible from the present invention. Therefore, the true technical protection scope of the invention should be determined by the technical spirit of the appended claims.

110: device / gateway domain
115: IP-CCTV
125: M2M device
130: M2M gateway
135: home monitoring terminal
140: refrigerator
150: IP address allocation system
155: network equipment
160: application / service system
300: IP address assignment server
305: communication unit
310: storage
315: control unit

Claims (9)

IP (internet protocol) address allocation system included in the ISP (Internet Service Provider) system, the type information of the terminal transmitted through the network equipment included in the ISP system by the network bootstrap (network bootstrap) operation of the terminal, or Checking service type information; And
The IP address allocation system, based on the type information or service type information of the identified terminal, comprising the step of provisioning QoS service policy information for the terminal through the network equipment (provisioning),
The step of checking the type information or service type information of the terminal is
The method for providing QoS service of an ISP system, wherein the IP address assignment system checks the type information or the service type information of the terminal by using an option field of DHCP (dynamic host configuration protocol), which is an IP address assignment protocol. The method of claim 1, wherein the ISP system provides a QoS service,
A prefix corresponding to the type information or the service type information of the terminal so that the network equipment of the ISP system can check the reliability of the provisioned QoS service policy information when the terminal requests Internet service through the network equipment. And confirming the QoS service policy information using a QoS mapping table including a QoS service providing method of an ISP system. IP (internet protocol) address allocation system included in the ISP (Internet Service Provider) system, the type information of the terminal transmitted through the network equipment included in the ISP system by the network bootstrap (network bootstrap) operation of the terminal, or Checking service type information; And
The IP address allocation system, based on the type information or service type information of the identified terminal, comprising the step of provisioning QoS service policy information for the terminal through the network equipment (provisioning),
The terminal, in the IP address allocation system, IP address allocation request information having vendor specific information in a dynamic host configuration protocol option field (DHCP) including type information or service type information of the terminal. Method of providing QoS service of an ISP system that delivers data. According to claim 1,
In the IP address allocation system, when the type information of the terminal is an M2M terminal and the service type information of the terminal is a security service, the QoS service policy information of the M2M terminal is lower in silver than the gold policy information. ) How to provide QoS service of ISP system determined by policy information. According to claim 1,
The IP address allocation system, when the type information of the terminal is an M2M gateway terminal, determines QoS service policy information of a home monitoring terminal connected to the M2M gateway terminal as bronze policy information having a lower QoS than silver policy information. And, the QoS service providing method of the ISP system that determines the QoS service policy information of the home appliance connected to the M2M gateway terminal as best effort policy information having a lower QoS than bronze policy information. In the ISP system IP address assignment server for providing QoS service,
A storage unit that stores QoS service policy information corresponding to type information or service type information of the terminal;
A communication unit that receives IP address allocation request information including terminal type information or service type information from a terminal through network equipment included in the ISP system; And
The terminal with reference to QoS service policy information for the type information or service type information of the terminal stored in the storage unit corresponding to the type information or the service type information of the terminal included in the IP address allocation request information of the terminal received in the communication unit Determines the QoS service policy information, allocates an IP address corresponding to the IP address allocation request information of the terminal received in the communication unit, and the communication unit determines the QoS service policy information and the assigned IP address of the determined terminal in the network It includes a control unit for controlling to provision to the terminal through the equipment,
The control unit
An IP address allocation server of an ISP system, characterized in that the type information or service type information of the terminal is checked by using an option field of DHCP (dynamic host configuration protocol), which is an IP address allocation protocol. In the ISP system IP address assignment server for providing QoS service,
A storage unit that stores QoS service policy information corresponding to type information or service type information of the terminal;
A communication unit that receives IP address allocation request information including terminal type information or service type information from a terminal through network equipment included in the ISP system; And
The terminal with reference to QoS service policy information for the type information or service type information of the terminal stored in the storage unit corresponding to the type information or the service type information of the terminal included in the IP address allocation request information of the terminal received in the communication unit Determines the QoS service policy information, allocates an IP address corresponding to the IP address allocation request information of the terminal received in the communication unit, and the communication unit determines the QoS service policy information and the assigned IP address of the determined terminal in the network It includes a control unit for controlling to provision to the terminal through the equipment,
The IP address allocation request information, IP address allocation server of the ISP system having the vendor-specific information of the DHCP option field including the type information or service type information of the terminal. The method of claim 6,
When the type information of the terminal is an M2M terminal and the service type information of the terminal is a security service, the controller determines the QoS service policy information of the M2M terminal as silver policy information having a lower QoS than gold policy information. IP address assignment server. The method of claim 6,
When the type information of the terminal is an M2M gateway terminal, the QoS service policy information of the home monitoring terminal connected to the M2M gateway terminal is determined as bronze policy information having a lower QoS than silver policy information, and the M2M gateway terminal The IP address allocation server of the ISP system that determines the QoS service policy information of the home appliance connected to the Internet as the best policy information having a lower QoS than the bronze policy information.

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