KR20170060561A - Method and System for Internetworking among Heterogeneous Thing Networks based on ID/LOC Split Architecture with Unified Thing Identifier - Google Patents

Abstract

In order to solve the problem of the internetworking structure between the existing IPv6-based heterogeneous networks, the present invention uses an ID / LOC (Identifier and Locator) separation structure for the integrated object ID, And more particularly, to a new object-ID inter-networking method and system based on object ID suitable for a limited environment of objects or objects networks while minimizing network changes.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and system for internetworking between heterogeneous networks using an integrated object ID and an ID /

The present invention relates to a method and system for internetworking between heterogeneous networks, and more particularly, to a method and system for internetworking between heterogeneous networks using an ID / LOC (Identifier and Locator) separation structure using an integrated object ID.

Currently, most Internet objects are implemented as applications that are dependent on specific network technologies and are often referred to as silo (SILO) schemes. This silo system has limitations on interworking between heterogeneous networks, and thus has limitations in interworking between different object networks or providing interworking services through them. In order to overcome these limitations, it is proposed to use IP (Internet Protocol) technology, which is a networking technology of the current Internet, for interworking between heterogeneous networks. Of the two versions of IP, Internet Protocol version 4 (IPv4) uses Internet Protocol version 6 (IPv6), which uses a 128-bit wide address space, because most of the current address is used and there is no extra address space. The method is the mainstream.

FIG. 1 is a basic structure of internetworking between a conventional IPv6-based heterogeneous network.

As shown in FIG. 1, the conventional IPv6-based heterogeneous network interworking architecture is a system in which the IP networking technology considers the object Internet having a special environment (for example, a large-scale property, limitation in objects and object networks) And thus have the following problems.

First, support for large-scale mobility objects by address-based routing is inefficient. Also, because of the end to end principle, it requires the implementation of many functions on highly restrictive objects. In addition, there are difficulties in implementation due to limitations on termination objects when additional functions such as security are added. In addition, a new addition of the IPv6 protocol stack to the existing object network is needed. It is also required to change the existing IPv4-based core / Internet to IPv6.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide an integrated object ID and an ID / LOC Identifier and Locator) This paper proposes a new method and system for internetworking between heterogeneous networks based on object ID, which is suitable for limited environment of object or object network while minimizing change of existing network in the environment where various object networks coexist. .

The technical problems of the present invention are not limited to the above-mentioned technical problems, and other technical problems which are not mentioned can be understood by those skilled in the art from the following description.

According to another aspect of the present invention, there is provided an internetworking method for managing at least one object on an object network, Registering the ID / LOC information including the object ID and the LOC information in the mapping system interworking with the core network based on the relay of the object gateway of the object network in each object using the interlocking; And transmitting information to the receiving object on another one of the plurality of object networks by referring to the LOC information about the receiving object requested and received by the mapping system by the transmitting object gateway in the transmitting object on the one object network .

The internetworking method uses an integrated object ID that uniquely identifies each object on the entire network as the object ID, and the object ID and the LOC information are used for ID / LOC separation And to provide internetworking.

And the LOC information is an IP address of the object gateway of the corresponding object network. The IP address may be an IPv4 or IPv6 address.

The step of registering the ID / LOC information comprises the steps of: transmitting, from each of the objects, a registration message including the object ID to the object gateway of the corresponding object network; Storing and managing mapping information on a geographical address in a storage means according to the object ID in the object gateway of the object network; Transmitting, at the object gateway of the object network, the registration request message including the object ID and its own IP address to the mapping system; And storing the object ID and the IP address of the object gateway of the object network corresponding to the object ID in the mapping system in the storage means as the ID / LOC information. The local address may include an IP address, a Medium Access Control (MAC) address, or a domain name.

Moving to another object network managed by another object gateway, the object updates the ID / LOC information to the mapping system.

The step of transmitting information to the receiving object may include transmitting information including transmission object information, an ID of the transmitting object, and an ID of the receiving object to the transmitting-side object gateway in the transmitting object; Obtaining, at the transmitting-side gateway, an IP address of a receiving-side gateway corresponding to the ID of the receiving object by querying the mapping system; Wherein the transmission object gateway encapsulates information including the transmission object information, the ID of the transmission object, the ID of the reception object, and the IP address of the reception gateway of the receiving object to send the encapsulated information to the reception side Transmitting to the object gateway; And the receiving-side gateway decapsulates and encapsulates the encapsulated information, refers to the storage means storing the mapping information for the local address according to the object ID, and transmits the transmission object information to the receiving object .

When the object network and the core network have different delivery mechanisms, the object gateway can relay transmission and reception of information to both sides through conversion of transmission / reception data.

According to another aspect of the present invention, there is provided an internetworking system comprising: a respective object gateway for managing one or more objects on a object network and interworking with a core network including the Internet; And a mapping system linked with the core network, each of the object gateways relaying each object of the object network to interwork with the core network and the mapping system, LOC information including LOC information is registered in the mapping system and the object gateway of the transmission side that manages a transmission object on a certain object network transmits the ID / LOC information to the LOC And transmits the transmission object information of the transmission object to the reception object on the other object network with reference to the information.

The method includes providing, as the object ID, an integrated object ID that uniquely identifies each object on the entire network, and provides inter-object inter-networking based on the ID / LOC separation in which the object ID and the LOC information are separately used . And the LOC information is an IP address of the object gateway of the corresponding object network. The IP address may be an IPv4 or IPv6 address.

Each of the object gateways receives a registration message including the object ID from each object to register the ID / LOC information in the mapping system, stores the mapping information for the local address in the storage means for each object ID And transmits a registration request message including the object ID and its own IP address to the mapping system, and the mapping system transmits the object ID and the IP address of the object gateway of the corresponding object network corresponding thereto to the ID / LOC information in the storage means. The local address may include an IP address, a Medium Access Control (MAC) address, or a domain name.

The object gateway of the other object network that manages the object moved to another object network managed by another object gateway can relay the update of the ID / LOC information to the mapping system.

The object gateway on the transmission side receives information including the transmission object information, the ID of the transmission object, and the ID of the reception object from the transmission object in order to transmit the transmission object information to the reception object, An object ID of the object to be transmitted, an IP address of the object gateway of the receiving object, and an IP address of the object gateway of the receiving object by inquiring the mapping system, acquiring the IP address of the receiving object gateway corresponding to the ID of the receiving object, And transmits the encapsulated information to the receiving object gateway. The receiving object gateway decapsulates and encapsulates the encapsulated information, and transmits the decoded information to the local address And transmits the transmission object information to the reception object.

When the object network and the core network have different delivery mechanisms, the object gateway can relay transmission and reception of information to both sides through conversion of transmission / reception data.

According to the method and system for inter-networking between heterogeneous networks according to the present invention, by using an integrated object ID and an ID / LOC (Identifier and Locator) separation structure, it is possible to minimize the change of existing networks in an environment in which various object networks coexist And inter-networking between heterogeneous networks based on object IDs suitable for a limited environment of objects or objects, it is possible to efficiently support not only information transfer between object and server but also information transfer between object and object.

In addition, since the network-based communication using the gateway (the device is based on the identification function) is used, it is possible to minimize the implementation burden on objects having high limitations.

In addition, it is possible to easily provide real-time information transmission on a large scale (eg, more than 50 billion) required by the Internet of Things (IOT) using an ID / LOC separation structure and a large-scale sex mapping system. Also, based on the mapping system, structural support of the mobility of the object and object network itself is possible.

Also, it is unnecessary to newly implement IPv6 in the existing object network, and even if it is implemented in IPv6, it can be implemented using only the minimum ID stack. In addition, it is possible to reuse existing IPv4 cores, to provide compatibility with existing object IDs by using an integrated object ID having compatibility with existing object ID systems, and to allow the use of an information transfer mechanism unique to each object network, It is easy to introduce object network.

FIG. 1 is a basic structure of internetworking between a conventional IPv6-based heterogeneous network.
2 is a diagram for explaining the concept of inter-networking between object ID based heterogeneous networks according to an embodiment of the present invention.
FIG. 3 is a diagram for explaining a configuration of an object-ID based inter-object network inter-networking system according to an embodiment of the present invention.
4 is a flowchart illustrating a network registration / update procedure for an integrated object ID in an object of an internetworking system between heterogeneous networks according to an embodiment of the present invention.
5 is a flowchart illustrating information transfer between objects in an internetworking system between heterogeneous networks according to an embodiment of the present invention.
FIG. 6 is a view for explaining an example of a method for implementing an object-ID based inter-object network inter-networking system according to an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. Also, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted in an ideal or overly formal sense unless explicitly defined in the present application Do not.

2 is a diagram for explaining the concept of inter-networking between object ID based heterogeneous networks according to an embodiment of the present invention.

As shown in FIG. 2, the concept of the present invention is mainly composed of a Unified Thing Identifier (Unified TID) (1) and an ID / LOC separation structure (2).

The integrated object ID (1) is uniquely defined in the network and is used to identify each object. Also, the ID of each object is not used as the LOC information as before, and the location information (LOC information) of each object is used as the IP address of the object gateway (TGW, Thing GateWay) of the object network ID / LOC separation (2) is used. Each network, such as an IPv4 (or IPv6) core network, a variety of constrained networks, and other unconstrained networks, is composed of its own autonomous networks. Each network has its own delivery mechanism (same as IPv4 / IPv6 Or otherwise). The information transfer between different networks is carried out by transferring the objects identified by the integrated object ID (1) to respective delivery mechanisms in each network and finally transmitting to the destination object ID. It is assumed that the transport layer and applications (Transports and Applications) operate on the basis of the integrated object ID (1) rather than the socket type as in the existing IP network.

The concept of the present invention is similar to the hourglass model of the existing Internet. The most important difference is that in the hourglass model of the current Internet, IP technology is used as the middle common layer, but object ID (1) is used in the present invention. Based on this new hourglass model, the present invention is based on the integrated object ID (1) and accommodates a variety of applications, including constrained / unconstrained networks, IPv4 / IPv6 based core networks, and others And accommodates unconstrained networks based on communication protocols such as WiFi (Wireless Fidelity) or LTE (Long Term Evolution). Through the introduction of this new hourglass model, the internetworking architecture proposed by the present invention can naturally accommodate various applications and subnetwork technologies present or present in the future.

FIG. 3 is a diagram for explaining a configuration of an inter-networking system 100 between object ID-based heterogeneous networks according to an embodiment of the present invention.

3, an object-ID-based inter-object network inter-networking system 100 according to an embodiment of the present invention includes a plurality of object ID receiving units 110 for receiving objects 111 identified by an integrated object ID 1, A network 110, a core network 120, and a mapping system 130. Each of the networks 110 and 120 and the mapping system 130 of the system 100 cooperate with each other on the integrated network.

The object network 110 includes not only a conventional object network based on short-range wireless communication such as ZigBee and Bluetooth but also a variety of communication-based object networks and IPv4 / IPv6-based object networks to be introduced in the future , A general network based on a communication protocol such as WiFi (Wireless Fidelity) or LTE (Long Term Evolution) as well as the object network.

Each object 111 stored in the object network 110 is uniquely identified by the object ID. In this case, the object ID includes various existing object IDs such as IEEE (Institute of Electrical and Electronics Engineers) series and EPC (Evolved Packet Core) (1) designed to have compatibility with the integrated object ID (1). For example, the object 111 may be an electronic product (e.g., a TV, a refrigerator, a mobile communication terminal, etc.) or a sensor (e.g., fire detection, intruder detection, etc.), an actuator / Off < / RTI > or an electronic device for driving according to a control value), and the like. An object of a certain object network can communicate with objects in the network and can be interlocked with each other. Also, the object network can communicate with objects of another object network through the core network 120, And can be linked with various devices that can be connected to the Internet.

The core network 120 may be a variety of IPv4-based networks such as the current IPv4-based Internet or an IPv4-based 5G (Generation) core network to be introduced later. IPv6-based networks can also be used as needed and do not rely on specific delivery mechanisms.

The mapping system 130 interfaces with the object network 110 (including the object 111 and the object gateway 112) via the core network 120 and provides an integrated object (ID / LOC information) of the ID (1) and the location (LOC information) of the object network where the object is located (e.g., the IP address of the object gateway (TGW) 112 of the object network) Maintain, and provide.

Each object 111 is assumed to communicate based on a unique range or globally unique object ID, unlike current IPv6-based internetworking using an IP address. In addition, a standard network object gateway 112 is used for converting transmission / reception data between a network protocol of the IPv4 / IPv6-based core network 120 and an independent network protocol of each object network 110.

In the configuration shown in FIG. 3, each of the object network 110 and the core network 120 independently transmits information (transmission / reception data) in its own network without changing the existing protocol. Information transmission between the object networks 110 and the object networks 110 can be classified as follows.

Within each object network 110, information is communicated between objects in a proprietary protocol. In this case, the integrated object ID 1 may be used, the integrated object ID 1 may not be used, and a unique ID in the network may be used. Information about the real-time position corresponding to the object of the integrated object ID (1) is registered, maintained and managed in the mapping system 130 on the ID / LCO separation structure, so that the objects among the hetero- The information can be transmitted and received through the interworking through the object gateway 112. [

3, a communication procedure between objects among the heterogeneous networks 110 will be briefly described as follows.

First, a transmission object (S-Thing) of one object network that transmits information (or data) includes an integrated object ID (1) of a reception object (D-Thing) of another object network as a destination ID, And transmits the information to the object gateway 112 to which it belongs using the protocol of the object network.

The object gateway 112 queries the mapping system 130 using the integrated object ID 1 of the received object D-Thing and the mapping system 130 searches the integrated object ID of the received object D- 1 in response to the IP address of the object gateway 112 in the object network. The transmission object S-Thing is positioned at the position corresponding to the integrated object ID 1 of the received object (D-Thing) in the direct mapping system 130 using the integrated object ID 1 of the received object (D-Thing) (E.g., the IP address of the object gateway 112), which is an implementation-dependent option.

Information is transferred between the object gateway on the S-Thing side and the object gateway on the D-Thing side in the core network 120 in accordance with the IP protocol (IPv4 / IPv6).

When the object gateway on the transmission object (S-Thing) transmits the information on the transmission object (S-Thing) to the object gateway on the reception object (D-Thing) side, the object gateway on the reception object (D- The information is finally delivered to the D-Thing according to the delivery mechanism inherent to the object network. When the information delivery mechanism according to the network protocol in the core network 120 is different from the information delivery mechanism according to the unique network protocol in each object network 110, the object gateway 110 transmits / So that information can be transmitted and received.

The basic procedure for information transfer in the present invention can be roughly classified into a network registration / update procedure and an information transfer procedure between objects for the integrated object ID (1) in the object 111. [

First, the network registration / update procedure for the integrated object ID (1) in the object 111 will be described with reference to FIG.

4 is a flowchart illustrating a network registration / update procedure for an integrated object ID (1) in an object 111 of an inter-networking system 100 between heterogeneous networks according to an exemplary embodiment of the present invention.

Referring to FIG. 4, a Thing 111 firstly transmits a registration message including its integrated object ID 1 to a matter gateway (TGW) 112 that manages its own object network Registration is requested (S11).

The object gateway (TGW) 112 receives mapping information (e.g., object ID: local address) for a local address in the object network managed by the object ID (1) of the object 111 (Thing) And stores and maintains it in a storage means such as its own cache (S12). For example, the local address may be a unique number transmitted by a Thing 111, a domain name, and the like. An IP address, a medium access control (MAC) address, or the like may be used as the unique number.

Then, the object gateway (TGW) 112 maps the registration request message including the integrated object ID (1) of the registration message and its own IP (IPv4 / IPv6) address for registration in the mapping system 130 To the system 130 (S13).

The mapping system 130 uses the registration request message to obtain mapping information for the IP (IPv4 / IPv6) address of the object gateway (TGW) 112, that is, ID / LOC information ID: the IP address of the TGW) is stored and maintained in a storage means such as a database (S14).

If the corresponding Thing 111 moves to another object network managed by another object gateway, the above-described registration process S11 to S14 is performed in the corresponding location, and the corresponding object gateway and the mapping system 130 The above-described registration information can be updated.

After the network registration for the integrated object ID (1) is performed as described above, the inter-object information transfer can be performed as shown in FIG. Not only between objects-objects, but also between objects and various servers on the network can be transmitted in a similar way.

5 is a flowchart illustrating information transfer between objects 111 in an inter-networking system 100 between heterogeneous networks according to an embodiment of the present invention.

5, first, a transmission object (S-Thing) simply transmits transmission object information (e.g., collection information, control information, and the like) to be transmitted by itself to a transmission object To the gateway (S-TGW), the information transmission can be started (S21). At this time, the transmission object (S-Thing) includes the transmission object information and the integrated object ID (S-ID) of the transmitted object (S-Thing) and the integrated object ID (D-ID) of the received object (S-TGW) to request transmission of the transmission object information. At this time, the delivery mechanism used for information transmission uses the inherent mechanism of the object network. For example, if the object network is using a ZigBee network, the S-Thing transmits the corresponding information to the S-TGW using the ZigBee transmission mechanism.

Upon receiving a request for transmission of the transmission object information from the transmission object (S-Thing), the transmission object gateway S-TGW performs integration of the reception object (D-Thing) And sends a query message including the object ID (D-ID) to the mapping system 130 (S22). Accordingly, the mapping system 130 refers to the integrated object ID (D-ID) of the D-Thing to determine whether or not the D-Thing (D-TGW) (LOC information) of the IP address (IPv4 / IPv6) of the destination gateway S-TGW (S23).

The transmission object gateway S-TGW then transmits the transmission object information S-ID and D-ID from the transmission object S-Thing to its own IP (IPv4 / IPv6) address and the reception object gateway D- Encapsulates the message with the IP (IPv4 / IPv6) address of the destination gateway D-TGW (S24).

The receiving-side gateway gateway (D-TGW) receiving the encapsulated information decapsulates this information and restores it to original information (S25). After confirming the ID of the object to be finally received from the restored information, the receiving-side gateway gateway (D-TGW) uses the delivery mechanism of the relevant object network as the destination address of the receiving object (D-Thing) (S26). Mapping information (e.g., object ID: local address) previously registered in the cache of the receiving-side object gateway (D-TGW) (see FIG. 4) is used in advance .

FIG. 6 is a diagram for explaining an example of a method for implementing an object-ID based inter-object network inter-networking system 100 according to an embodiment of the present invention. The object 111, the object gateway 112, the core network 120, the mapping system 130, and the like of the internetworking system 100 between heterogeneous networks according to an embodiment of the present invention may be implemented as hardware, software, Lt; / RTI > For example, object 111, object gateway 112, core network 120, and mapping system 130 may be implemented in computing system 1000 as shown in FIG.

The computing system 1000 includes at least one processor 1100, a memory 1300, a user interface input device 1400, a user interface output device 1500, a storage 1600, And an interface 1700. The processor 1100 may be a central processing unit (CPU) or a memory device 1300 and / or a semiconductor device that performs processing for instructions stored in the storage 1600. Memory 1300 and storage 1600 may include various types of volatile or non-volatile storage media. For example, the memory 1300 may include a ROM (Read Only Memory) 1310 and a RAM (Random Access Memory)

Thus, the steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by processor 1100, or in a combination of the two. The software module may reside in a storage medium (i.e., memory 1300 and / or storage 1600) such as a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a removable disk, You may. An exemplary storage medium is coupled to the processor 1100, which can read information from, and write information to, the storage medium. Alternatively, the storage medium may be integral to the processor 1100. [ The processor and the storage medium may reside within an application specific integrated circuit (ASIC). The ASIC may reside within the user terminal. Alternatively, the processor and the storage medium may reside as discrete components in a user terminal.

As described above, in the inter-networking system 100 of a heterogeneous network according to the present invention, by using the integrated object ID 1 and the ID / LOC (Identifier and Locator) separation structure, It supports efficient communication between object and object as well as communication between object and server through inter-networking between heterogeneous object networks based on object ID, which is suitable for restricted environment of object or object network while minimizing change of existing network. . Further, since the network-based communication using the gateway 112 (the device is based on the identification function) is used, it is possible to minimize the implementation burden on objects having high limitations.

In addition, it is possible to easily provide real-time information transmission on a large scale (for example, more than 50 billion) required by the Internet of Things (IOT) using the ID / LOC separation structure and the large-scale sex mapping system 130 . Also, based on the mapping system 130, structural support of the mobility of the object and object network itself is possible. Also, it is unnecessary to newly implement IPv6 in the existing object network, and even if it is implemented in IPv6, it can be implemented using only the minimum ID stack. In addition, it is possible to reuse existing IPv4 cores, to provide compatibility with existing object IDs by using an integrated object ID having compatibility with existing object ID systems, and to allow the use of an information transfer mechanism unique to each object network, It is easy to introduce object network.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

The object network (110)
Things (111)
The object gateway (112)
Core network 120,
The mapping system 130,
S-Thing
Receiving object (D-Thing)

Claims (1)

There is provided a mapping system for interworking with the core network based on the relay of the object gateway of the object network in each object using interworking between each object gateway for managing one or more objects on the object network and a core network including the Internet Registering ID / LOC information including ID and LOC information; And
Referring to the LOC information of a reception object requested and received by the mapping system by the transmission gateway in the transmission object on one object network and transmitting the information to the reception object on the other object network
The method comprising the steps of:

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