KR100684612B1 - Home network system and home gateway - Google Patents

Abstract

A home network system and a home gateway are provided to enable addresses of IPv6 nodes of an external network to be managed through the home gateway and enable each Zigbee node to have an intrinsic IPv6 address, thereby easily interworking the IPv6 node with the Zigbee node within a home. A home network system(100) comprises the followings: at least one Zigbee node(120) which inserts an identity code of a destination IPv6(Internet Protocol version 6) node into a specific field of a Zigbee packet which will be transmitted and transmits the packet; and a home gateway(110) which detects an IPv6 address corresponding to the inserted identity code of the IPv6 node after receiving the Zigbee packet transmitted from the Zigbee node(120), translates the received Zigbee packet into an IPv6 packet and transmits the translated packet to an IPv6 node(200) corresponding to the detected IPv6 address.

Description

Home Network System and Home Gateway

1 is a block diagram showing the configuration of a home network system according to a preferred embodiment of the present invention.

2A is an exemplary diagram illustrating a header form of IPv6.

2B is an exemplary diagram illustrating an address form of IPv6.

3 is a block diagram showing the configuration of the home gateway shown in FIG.

4 is a flowchart illustrating a data receiving operation of the home network system shown in FIG. 1.

5 is a block diagram showing the structure of an IPv6 stack.

6A is an exemplary diagram illustrating a form of a basic header structure of a Zigbee protocol.

FIG. 6B is an exemplary diagram showing a form of a header structure that can be added in a key value pair (KVP) packet for transmission of control data.

6C is an exemplary diagram illustrating one type of header structure that may be added in an MSG packet for message transmission.

7 is a flowchart for explaining a data transmission operation of the home network system shown in FIG. 1.

8 is an exemplary view showing one form of an identification code / IPv6 address table stored in a database.

<Description of the symbols for the main parts of the drawings>

100: home network system

110: home gateway

111: IPv6 interface module

112: control module

113: IPv6 node ID extraction unit

114: Zigbee packet generation unit

115: IPv6 address detection unit

116: IPv6 packet generation unit

117: Zigbee Interface Module

118: database

120: Zigbee Node

200: IPv6 node

The present invention relates to a home network system and a home gateway, and more specifically, to an internet protocol version 6 (IPv6) and a zigbee network. It relates to a home network system and a home gateway.

In recent years, the rapid development of wired and wireless data communication technology and the expansion and spread of the communication network on which it is based have led to the popularization of high-speed communication services such as the Internet. In particular, as the high-speed Internet is spreading into homes, existing PC-based network construction technologies are evolving into home network technologies for remote control of digital information appliances in homes.

The home network system is a concept developed from the existing home automation system. It is used to wire or wirelessly connect digital information appliances such as TV, audio, video, computer, refrigerator, washing machine, rice cooker, air conditioner and boiler installed in the home. It refers to a system that allows users to freely control any home appliance anytime and anywhere by connecting to a network.

By using such a home network system, users can not only get functions such as door opening, intruder detection, gas alarm, fire detection, etc., which are basically provided in the home automation system, but also upgraded forms of high quality multimedia service. Entertainment services such as online, distance education and video on demand services, information services such as personal and family information management, home shopping, e-commerce and home security Etc. may be provided with a communication service (Communication Service).

Typically, wired or wireless networking technology is used to construct such a home network system.

In this case, wired networking technology is used for power line communication (PLC) using a power line installed in a home, home phone networking alliance (HomePNA) using a telephone line installed in a home, and real-time high-speed data transmission of AV devices. Institute of Electrical and Electronics Engineers (IEEE) 1394. In addition, wireless networking technology includes IEEE 802.11 series, a wireless LAN that uses the 2.4 GHz or 5 GHz band, and the wireless access industry standard of the 2.4 GHz band for supporting communication between short-range devices. Ultra Wide Band (UWB), a broadband communication technology, and ZigBee, an industry standard for home automation and data networks with low data rates.

Among these home networking technologies, ZigBee is a wireless networking technology based on IEEE 802.15.4. In 2002, the Alliance for Research and Standardization was formed and version 1.0 was released in December 2004. ZigBee is expected to lead the development of short-range wireless networks and sensor networks because of its low cost, low power consumption and low speed.

On the other hand, the home network system is connected to the outside by being connected to an external communication network, for example, wired or wireless Internet. In this case, a user terminal and an internet server for allowing a user to control home appliances from outside may be connected to the Internet.

The Internet conforms to the TCP / IP (Transport Control Protocol / Internet Protocol) protocol which is a standard protocol. At this time, the TCP / IP protocol stack is based on two important protocols, TCP, which is a higher layer and IP, which is a lower layer. The IP protocol corresponds to OSI (Open Systems Interface) Layer 3, which is currently version 4 ( IPv4: Internet Protocol Version 4) is mainly used.

The IPv4 has a 32-bit address system. For example, IPv4 may have an IP address system such as 'XXX: XXX: XXX: XXX'. At this time, since each 'XXX' is 8 bits, the total number of bits is 32 bits. Therefore, the number of addresses that can be allocated in the IPv4 addressing system is about 4.3 billion.

However, the addressing scheme of IPv4 is insufficient to accommodate exponentially increasing IP addresses. In particular, in an environment requiring a large number of addresses such as a home network system, there is a limit to using the IPv4 addressing system.

Although network address translation (NAT) is used as a solution, network address translation is a process of translating an address through a separate mapping process to connect an internal network such as an external Internet and a home network. There is a problem in terms of efficiency, such as the need to update the mapping information when the addition, deletion, etc. of the device is made.

Therefore, to replace this IPv4, Internet Protocol Version 6, also called Internet Protocol next generation (IPng), has been developed.

IPv6 extends the length of IP addresses from 32-bit to 128-bit, eliminating the depletion of Internet address resources, and strengthens security by embedding the Internet Protocol Security Protocol (IPsec) into the protocol. It is also expected to show strength in linking with the system. The IPv6 is described in detail in RFC 2460, a standard draft of the Internet Engineering Task Force (IETF).

Therefore, there is an urgent need for a technology capable of interworking IPv6 and home network systems to solve the shortage of IP addresses and smoothly interworking IPv6 nodes and network nodes in home network systems. In particular, as mentioned above, there is a demand for a technology capable of connecting a Zigbee node, which can be efficiently applied to a short range wireless network and a sensor network, to the Internet having an IPv6 addressing scheme.

SUMMARY OF THE INVENTION The present invention has been made in this background, and a first object of the present invention is to provide a home network system capable of efficiently transmitting and receiving data with an external IPv6 node using a home gateway.

Another object of the present invention is to provide a home gateway that can be easily applied to the home network system.

According to an aspect of the present invention, there is provided a home network system including: at least one ZigBee node inserting and transmitting an identification code of a destination Internet Protocol version 6 (IPv6) node in a specific field of a ZigBee packet to be transmitted; And receiving a Zigbee packet transmitted from the Zigbee node to detect an IPv6 address corresponding to the inserted identification code of the IPv6 node, converting the received Zigbee packet into an IPv6 packet, and converting the received IPv6 address into an IPv6 node corresponding to the detected IPv6 address. Home gateway to send to.

At this time, the home gateway extracts an identification code inserted into the received Zigbee packet, searches an identification code / IPv6 address table, and detects an IPv6 address corresponding to the identification code.

In addition, when the IPv6 packet is received from an external network, the home gateway extracts a node ID from a destination address of the received IPv6 packet, and sets a source address of the IPv6 packet when the extracted node ID corresponds to the Zigbee node. Corresponding to the identification code in the identification code / IPv6 address table.

On the other hand, the home gateway according to the present invention for achieving the second object of the present invention, in the home gateway providing a communication interface between at least one ZigBee node and at least one IPv6 node, identifying the IPv6 node; A database storing an identification code / IPv6 address table in which an identification code and a corresponding IPv6 address are designated; And extracting the identification code from a Zigbee packet received from the Zigbee node, searching an identification code / IPv6 address table stored in the database to detect an IPv6 address corresponding to the identification code, and converting the received Zigbee packet into the IPv6 packet. And a control module for converting the packet into an IPv6 node corresponding to the detected IPv6 address.

The control module extracts the node ID from the IPv6 packet received from the IPv6 packet, converts the received IPv6 packet into a Zigbee packet, and transmits the received ID to a Zigbee node corresponding to the extracted node ID. At this time, the database stores the source address of the received IPv6 packet in the identification code / IPv6 table in correspondence with a predetermined identification code.

The home gateway receives an IPv6 packet transmitted from the IPv6 node, transmits the IPv6 packet to the control module, receives an IPv6 packet provided from the control module, and transmits the IPv6 packet to an IPv6 node corresponding to the address of the IPv6 packet. ; And a Zigbee interface module that receives a Zigbee packet transmitted from the Zigbee node and transmits the Zigbee packet to the control module and transmits a Zigbee packet provided from the control module to a Zigbee node corresponding to the address of the Zigbee packet. .

The control module may include: an IPv6 node ID extracting unit configured to extract the node ID included in a destination address field of an IPv6 packet received from the IPv6 node; A Zigbee packet generation unit processing the header of the received IPv6 packet and converting the header into the Zigbee packet; An IPv6 address detector for extracting the identification code from the received Zigbee packet and detecting an IPv6 address corresponding to the identification code; And an IPv6 packet generator for generating an IPv6 packet by adding a header to the received Zigbee packet.

Meanwhile, data in a Zigbee packet form is inserted into a data field of the IPv6 packet, and the Zigbee packet generator extracts a Zigbee packet type stored in the data field by removing a header of the received IPv6 packet.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. In addition, in describing the preferred embodiment of the present invention illustrated in the drawings, specific technical terms are used for clarity of content. However, it is to be understood that the invention is not limited to these specific selected terms, and that each specific term includes all technical synonyms that operate in a similar manner to achieve a similar purpose.

1 is a block diagram showing the configuration of a home network system according to a preferred embodiment of the present invention.

As shown in FIG. 1, the home network system 100 includes a home gateway 110 and a plurality of Zigbee nodes 120 wirelessly interworking with the home gateway 110 through the Zigbee protocol.

At this time, the home gateway 110 is interworked with the external network through the rules defined in IPv6. That is, the home gateway 110 interworks with at least one IPv6 node 200 existing outside. Therefore, each Zigbee node 120 may be connected to the external IPv6 node 200 via the home gateway 110, for which Zigbee node 120 must have a unique IPv6 address.

The IPv6 node 200 may be a user terminal that communicates through an IPv6 rule, for example, a user computer or a mobile communication terminal.

2A is an exemplary diagram illustrating a header form of IPv6.

Referring to FIG. 2A, a header of an IPv6 is composed of fields "Version", "Traffic Class", "Flow Label", Payload Length "," Next Header "," Hop Limit "," Source Address ", and" Destination Address ". In this case, the "Source Address" field and the "Destination Address" field mean a source address for transmitting a packet and a destination address for receiving a packet, respectively.

2B is an exemplary diagram illustrating an address form of IPv6.

As shown in FIG. 2B, the IPv6 address is composed of 128 bits in total, and may be divided into a 64-bit network ID and a 64-bit node ID. For example, the IPv6 address may be expressed as "1080: 0000: 0000: 0000: 0008: 0800: 200C: 417A". At this time, each "XXXX" is 16 bits and each bit is represented by a hexadecimal number (Hexadecimal).

The network ID consists of the upper 64 bits and is determined by the prefix assigned to each network. In this case, the prefix information may be allocated from a separate router connected to an external network using information predefined by the Internet communication network management regulations. The router may use a home gateway.

The node ID is composed of the lower 64 bits and is configured by using the 48-bit Media Access Control (MAC) address of each device. In this case, a unique 64-bit node ID unique to each device can be generated by using the Extended Unique Identifier (EUI) -64 format.

For example, the IPv6 address of the home gateway 110 uses a 64-bit network ID based on prefix information and a 64-bit node ID obtained by converting a unique MAC address of the home gateway 110 into an EUI-64 format. Can be configured.

Meanwhile, in the case of the IPv6 address of the Zigbee node 120 interworking with the home gateway 110, the network ID is set to the same network ID as the home gateway 110, and the node ID is 64-bit that the Zigbee node 120 has. You can use IEEE address.

All ZigBee hardware has a unique 64-bit IEEE address and a 16-bit short address, of which the IEEE address is used as the node ID of the ZigBee node. For example, if an IEEE address of a specific Zigbee node is "000000000001", the node ID may be configured as "0000: 0000: 0000: 0001".

3 is a block diagram showing the configuration of the home gateway 110 shown in FIG.

Referring to FIG. 3, the home gateway 110 includes an IPv6 interface module 111, a Zigbee interface module 117, a database 118, and a control module 112.

The IPv6 interface module 111 performs a physical interface to exchange IPv6 packets with an external network. That is, an IPv6 packet transmitted from an external network is received and transmitted to the control module 112, and the IPv6 packet transmitted from the control module 112 is transmitted to the corresponding IPv6 node 200 side according to the IPv6 address.

The Zigbee interface module 117 performs an RF (Radio Frequency) interface to exchange Zigbee packets with the Zigbee node 120. That is, a Zigbee packet transmitted from the Zigbee network is received and transmitted to the control module 112, and a Zigbee packet transmitted from the control module 112 is transmitted to the Zigbee node 120 corresponding to the node ID.

The control module 112 extracts the node ID from the destination address of the IPv6 packet transmitted from the IPv6 interface module 111, converts the IPv6 packet into a Zigbee packet form, and transmits it to the Zigbee interface module 117. At this time, the source address of the received IPv6 packet is managed to correspond to a predetermined identification code in the database 118.

In addition, the control module 112 extracts an identification code of the destination IPv6 node 200 from the Zigbee packet transmitted from the Zigbee interface module 117, detects an IPv6 address corresponding to the identification code, and then generates an IPv6 packet. To the IPv6 interface module 111.

The control module 112 may be composed of an IPv6 node ID extractor 113, a Zigbee packet generator 114, an IPv6 address detector 115, and an IPv6 packet generator 116.

The IPv6 node ID extractor 113 extracts a node ID address indicating the address of the lower 64-bit Zigbee node 120 from the 128-bit address included in the destination address field of the IPv6 packet transmitted from the IPv6 interface module 111. do.

The Zigbee packet generation unit 114 processes a header of the IPv6 packet transmitted from the IPv6 interface module 111 and converts the header into a Zigbee packet.

In general, since the header of the IPv6 packet has a size large enough that the ZigBee node 120 cannot process, the ZigBee packet generator 114 must change the packet header to match the ZigBee protocol. At this time, when data is configured in the form of ZigBee packet in the application layer of the external IPv6 stack, the ZigBee packet generation unit 114 may extract only the ZigBee packet after removing the header from the IPv6 packet.

The IPv6 address detecting unit 115 extracts an identification code of the destination IPv6 node 200 from the Zigbee packet transmitted from the Zigbee interface module 117, searches for an identification code / IPv6 address table stored in the database 118, and then searches the destination IPv6 node. Detects an IPv6 address.

The IPv6 packet generator 116 generates an IPv6 packet by adding a header to the Zigbee packet transmitted from the Zigbee interface module 117. At this time, the destination address of the generated IPv6 packet is an IPv6 address detected by the IPv6 address detector 115.

Meanwhile, each Zigbee node 120 may be a device in a home including a Zigbee chip, for example, a home appliance, a sensor device, a security device, a controller device, and the like. That is, a device capable of communicating with the external IPv6 node 200 through the home gateway 110 according to the Zigbee protocol.

The Zigbee node 120 receives a Zigbee packet transmitted from the home gateway 110 to receive control information, status request information, etc. by an external IPv6 node 120, and receives response information corresponding to the received information. The packet is transmitted to the home gateway 110.

At this time, since the number is limited to indicate the address of the destination IPv6 node 200 through the Zigbee packet, the destination address of the Zigbee packet is the address of the home gateway 110, the address of the IPv6 node 200 in a specific field Inserts IPv6 node identification information to identify the.

For example, an identification code is inserted into a destination end point (DEP) field of a Zigbee packet. In this case, the DEP field may insert 0 to 255 codes. Code 0 is a code allocated to device management, and codes 241 to 255 are usually reserved for reserve, so 240 codes may be inserted. . Therefore, by inserting the IPv6 node identification code in the DEP field, 240 IPv6 nodes can be identified.

The IPv6 node address corresponding to the IPv6 identification code is stored in the identification code / IPv6 address table in the database. Since the identification code / IPv6 address table is generally less than 240 terminals for controlling or monitoring the ZigBee node 120 in the home network system 100, the database 118 is basically used. A predetermined number can be stored in advance, and can be updated at any time based on the address information of the IPv6 packet transmitted from the IPv6 node 200. In this case, the upgraded information may be shared in the Zigbee node 120.

Accordingly, the home gateway 110 may detect the address of the destination IPv6 node 200 to be transmitted by extracting the IPv6 node identification code included in the DEP field of the Zigbee packet transmitted from the Zigbee node 120 and searching the database 118. Will be.

Hereinafter, the reception operation and the transmission operation of the home network system 100 described above will be described with reference to FIGS. 4 to 8. Functions and operations of the components 110 to 120 of the home network system 100 will be more clearly described below with reference to the transmission and reception operations.

4 is a flowchart for describing a data receiving operation of the home network system 110 shown in FIG. 1.

Referring to FIG. 4, first, the IPv6 interface module 111 of the home gateway 110 receives an IPv6 packet transmitted from the IPv6 node 200 (step: S1).

At this time, the destination address and source address of the received IPv6 packet is composed of 128 bits, the node ID of the lower 64 bits of the destination address is composed of the IEEE address of the Zigbee node 120. In addition, data in the form of ZigBee packet is inserted into the data field of the IPv6 packet. Such an IPv6 packet may be generated by the IPv6 stack structure shown in FIG. 5.

FIG. 5 is a block diagram illustrating the structure of an IPv6 stack. Referring to FIG. 5, the IPv6 stack includes an application layer 10, a transport layer (TCP / UDP) 20, an IPv6 layer 30, It may be configured as a network interface layer 40.

In the application layer 10, data having a header structure of a Zigbee packet is inserted. In this case, the header structure of the Zigbee packet is illustrated in FIGS. 6A to 6C.

6a shows a form of the basic header structure of the Zigbee protocol. Referring to FIG. 6A, a header of a Zigbee packet includes "Frame type", "Delivery mode", "Indirect address mode", "Security", "Ack. Request", "Resereved", "Destination end Point", and "Cluster Identifier". "," Profile Identifier "field may be included.

6B illustrates a form of a header structure that can be added in a key value pair (KVP) packet for transmission of control data. Referring to FIG. 6B, an additional header of the KVP packet may include a "Frame type", a "Command type identifier", an "Attribute Identifier", an Error Code ", an" Attribute Data "field, and the like.

Figure 6c shows a form of header structure that can be added in the MSG packet for message transmission. Referring to FIG. 6C, an additional header of the MSG packet may include a "Frame type", a "Message Length", a "Message data" field, and the like.

The structure and definition of each field is defined in detail in the ZigBee standard document. When a packet including such a structure is generated at the application layer, the lower layers add headers necessary for IPv6 transmission. Thus an IPv6 packet is generated.

On the other hand, when such an IPv6 packet is received by the IPv6 interface module 111 of the home gateway 110, the control module 112 of the home gateway 110 extracts a node ID from the destination address of the received IPv6 packet (step After recognizing that the corresponding IPv6 packet is transmitted to the Zigbee node 120, the header of the IPv6 packet is removed and converted into a Zigbee packet (step: S3).

In this case, as described above, since the Zigbee-type packet is inserted and transmitted in the data field in the application layer of the IPv6 stack, the Zigbee packet-type data can be easily extracted by removing the header added in the lower layer of the IPv6 stack.

Subsequently, the Zigbee interface module 117 transmits the Zigbee packet converted by the control module 112 to the Zigbee node 120 corresponding to the node ID (step: S4). Accordingly, the Zigbee node 120 may receive control information, status request information, and the like transmitted from the IPv6 node 200.

On the other hand, the database 118 stores the source address of the received IPv6 packet in the identification code / IPv6 address table corresponding to the specific identification code. This can be easily used when transmitting data from the Zigbee node 120 to the IPv6 node 200.

FIG. 7 is a flowchart illustrating a data transmission operation of the home network system 100 shown in FIG. 1.

Referring to FIG. 7, first, the Zigbee node 120 sets a destination address of a Zigbee packet to be transmitted as the home gateway 110, and inserts identification information of the destination IPv6 node 200, for example, an identification code, into the DEP field. Transmit to the home gateway 110 (step: S11). At this time, the identification code may use a number from 1 to 240.

The Zigbee interface module 117 of the home gateway 110 receives the Zigbee packet transmitted from the Zigbee node 120 (step: S12), and transmits it to the control module 112. The control module 112 extracts an identification code of the IPv6 node 200 inserted into the DEP field from the transmitted Zigbee packet (step S13), and searches for the identification code / IPv6 address table stored in the database 118. An IPv6 address corresponding to the identification code is detected (step S14).

FIG. 8 is an exemplary view showing a form of an identification code / IPv6 address table stored in the database 118. Referring to FIG. 8, 1 to 240 identification codes inserted into a DEP field are defined, and each identification code It can be seen that the IPv6 address corresponding to is defined.

For example, if the identification code is "1", the address of the corresponding IPv6 node is 21DA: 00D3: 0000: 2F3B: 02AA: 00FF: FE28: 9C5A ". If the identification code is" 240 ", the corresponding IPv6 node is IPv6. It can be seen that the address of the node is "2001: 0230: ABCD: FFFF: 0000: 0000: FFFF: 1111".

Subsequently, the control module 112 adds a header to the Zigbee packet, converts it to meet the IPv6 standard (step S15), and then transmits it to the IPv6 interface module 111. In this case, the detected IPv6 address is inserted into the address field of the converted IPv6 packet.

The IPv6 interface module 111 transmits the IPv6 packet transmitted from the control module 112 to the external network (step S16). Therefore, the IPv6 packet is transmitted to the IPv6 node 200 corresponding to the IPv6 address detected by the control module 112. Therefore, the IPv6 node 200 may collect control response information, status information, and the like of the Zigbee node 120 that transmitted the packet.

Although the present invention has been described above with reference to its preferred embodiments, those skilled in the art will variously modify the present invention without departing from the spirit and scope of the invention as set forth in the claims below. And can be practiced with modification. Accordingly, modifications to future embodiments of the present invention will not depart from the technology of the present invention.

As described above, according to the present invention, since the addresses of the IPv6 nodes of the external network are managed through the home gateway, and each Zigbee node has a unique IPv6 address, the IPv6 node and the Zigbee node in the home can be easily interworked.

Claims (10)

At least one Zigbee node for inserting and transmitting an identification code of a destination Internet Protocol version 6 (IPv6) node in a specific field of a Zigbee packet to be transmitted; And Receiving a Zigbee packet transmitted from the Zigbee node to detect an IPv6 address corresponding to the identification code of the inserted IPv6 node, converts the received Zigbee packet into an IPv6 packet to an IPv6 node corresponding to the detected IPv6 address A home network system comprising a home gateway for transmitting. The home network of claim 1, wherein the home gateway extracts an identification code inserted into the received Zigbee packet, searches an identification code / IPv6 address table, and detects an IPv6 address corresponding to the identification code. system. The method of claim 2, wherein the home gateway extracts a node ID from a destination address of the received IPv6 packet when an IPv6 packet is received from an external network, and if the extracted node ID corresponds to the Zigbee node. And a source address corresponding to the predetermined identification code and stored in the identification code / IPv6 address table. 2. The home network system of claim 1, wherein the specific field is a destination end point field. A home gateway providing a communication interface between at least one Zigbee node and at least one IPv6 node, A database for storing an identification code for identifying the IPv6 node and an identification code / IPv6 address table for specifying an IPv6 address corresponding thereto; And Extracting the identification code from the Zigbee packet received from the Zigbee node, searching the identification code / IPv6 address table stored in the database to detect the IPv6 address corresponding to the identification code, and converts the received Zigbee packet into the IPv6 packet And a control module for converting the information into an IPv6 node corresponding to the detected IPv6 address. The method according to claim 5, wherein the control module extracts the node ID from the IPv6 packet received from the IPv6 packet, converts the received IPv6 packet into a Zigbee packet form and transmits it to a Zigbee node corresponding to the extracted node ID Home gateway, characterized in that. 7. The home gateway of claim 6, wherein the database stores the source address of the received IPv6 packet in the identification code / IPv6 table in correspondence with a predetermined identification code. The method of claim 6, wherein the home gateway, An IPv6 interface module for receiving an IPv6 packet transmitted from the IPv6 node and transmitting the received IPv6 packet to the control module and receiving an IPv6 packet provided from the control module and transmitting the received IPv6 packet to an IPv6 node corresponding to the address of the IPv6 packet; And And receiving a Zigbee packet transmitted from the Zigbee node to the control module and transmitting a Zigbee packet provided from the control module to a Zigbee node corresponding to the address of the Zigbee packet. Home gateway. The method of claim 5, wherein the control module, An IPv6 node ID extracting unit extracting the node ID included in a destination address field of an IPv6 packet received from the IPv6 node; A Zigbee packet generation unit processing the header of the received IPv6 packet and converting the header into the Zigbee packet; An IPv6 address detector for extracting the identification code from the received Zigbee packet and detecting an IPv6 address corresponding to the identification code; And And an IPv6 packet generator for generating an IPv6 packet by adding a header to the received Zigbee packet. 10. The method of claim 9, wherein a ZigBee packet data is inserted in the data field of the IPv6 packet, and the ZigBee packet generator extracts the ZigBee packet type stored in the data field by removing the header of the received IPv6 packet. Home gateway.

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