WO2010140739A1 - System for optimizing communication paths between mobile stations in a proxy mobile internet protocol version 6 network, and method for same - Google Patents

System for optimizing communication paths between mobile stations in a proxy mobile internet protocol version 6 network, and method for same Download PDF

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Publication number
WO2010140739A1
WO2010140739A1 PCT/KR2009/004942 KR2009004942W WO2010140739A1 WO 2010140739 A1 WO2010140739 A1 WO 2010140739A1 KR 2009004942 W KR2009004942 W KR 2009004942W WO 2010140739 A1 WO2010140739 A1 WO 2010140739A1
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mobile terminal
proxy
mag
transmitting
receiving
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PCT/KR2009/004942
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French (fr)
Korean (ko)
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고석주
김지인
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경북대학교 산학협력단
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/20—Communication route or path selection, e.g. power-based or shortest path routing based on geographic position or location
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]

Definitions

  • the present invention relates to a system and a method for optimizing a communication path between mobile terminals in a proxy mobile internet protocol version 6 network, and more particularly, to a proxy mobile internet protocol version 6 network capable of performing data communication through an optimized data communication path.
  • the present invention relates to a communication path optimization system between mobile terminals and a method thereof.
  • PMIPv6 Proxy Mobile Internet Protocol version 6
  • IPv6 Internet Protocol version 6
  • LMA local mobility anchor
  • the transmitting mobile terminal transmits the data to be transmitted to the transmitting MAG in charge of the transmitting mobile terminal, and the transmitting MAG transmits the received data to the LMA which is the local mobile anchor to which the transmitting mobile terminal belongs. .
  • the LMA transmits the received data to the LMA to which the receiving side mobile terminal to which the data is transmitted belongs, and the LMA of the receiving side mobile terminal transmits the received data to the receiving side MAG. Thereafter, the receiving MAG transmits the data transmitted to the receiving mobile terminal, thereby performing data exchange between the mobile terminals.
  • the present invention forms a tunnel, which is a data transmission path between MAGs (Mobile Access Gateways) that manages mobile terminals, so that data can be transmitted without going through an LMA, which is a local mobile anchor.
  • MAGs Mobile Access Gateways
  • LMA Mobile Access Gateways
  • the present invention by requesting a proxy binding query to the mobile terminal to form a tunnel as a data transmission path between the MAGs in charge of the mobile terminal, it is possible to transmit data without going through the local mobility anchor (LMA), which is a local mobile anchor To provide a method for optimizing communication paths between mobile terminals in proxy mobile internet protocol version 6 network.
  • LMA local mobility anchor
  • a system for optimizing communication paths between mobile terminals in a proxy mobile internet protocol version 6 network for optimizing a communication path between data transmission and reception between a transmitting mobile terminal and a receiving mobile terminal is described above.
  • a Local Mobility Anchor (LMA) for retrieving a proxy care of address matched with the home address of the receiving mobile station;
  • At least two Mobile Access Gateway (MAG) to check the location information of the receiving mobile terminal located in the searched proxy care of address, and to control the data transmission of the transmitting mobile terminal and the receiving mobile terminal;
  • the MAG in which the transmitting side mobile terminal is located initializes a data transmission path to the MAG in which the receiving side mobile terminal is located to form a tunnel between the MAGs.
  • a proxy binding query request module for requesting a proxy binding query to the LMA including the home address of the receiving mobile terminal;
  • a data transmission path initialization module for initializing a data transmission path for performing data communication between the MAG where the receiving mobile terminal is located and the MAG where the transmitting mobile terminal is located;
  • a tunnel forming module for forming a tunnel based on the initialized data transmission path; It may include a MAG including a; message transmission module for transmitting a response message for the data transmission path initialization.
  • a proxy care of address search module for searching for a proxy care of address of a receiving mobile terminal that matches a proxy binding query requested from the MAG; It may include a LMA including a; message transmission module for transmitting a response message to the proxy binding query request, including the retrieved proxy care of address.
  • the LMA may further include a binding cache entry (BCE) for storing a proxy Kiob address that matches the home address of the receiving mobile station.
  • BCE binding cache entry
  • a method for optimizing communication paths between mobile terminals in a proxy mobile internet protocol version 6 network for optimizing communication paths between a transmitting mobile station and a receiving mobile terminal is provided.
  • Retrieving a proxy care-of address of a receiving mobile terminal that matches the requested proxy binding query by the LMA Forming a tunnel by initializing a data transmission path with a MAG in which a transmitting mobile station corresponding to the found proxy care of address is located, by the MAG in which a receiving mobile terminal is located;
  • the LMA may include searching for the proxy care of address according to the requested proxy binding query, and then transmitting a response message including the found proxy care of address to the transmitting MAG.
  • an initialization process of initializing a data transmission path between a MAG in which the transmitting side mobile terminal is located and a MAG in which the receiving side mobile terminal is located A step of forming, by the MAG in which the receiving mobile terminal is located, the initialized data transmission path into a bidirectional tunnel; And a response process of transmitting, by the MAG where the receiving mobile terminal is located, a response message according to the data transmission path initialization after the tunnel is formed.
  • a first process of transmitting data to the MAG in which the transmitting mobile terminal is located A second step of transmitting, by the MAG in which the transmitting mobile terminal is located, the data to the MAG in which the receiving mobile terminal is located through the formed tunnel; And a third step of transmitting, by the MAG in which the receiving side mobile terminal is located, the data to the receiving side mobile terminal.
  • the LMA searches for a care of address of a network to which the receiving side mobile terminal moves and accesses, and initializes a data transmission path between MAGs in which a receiving side mobile terminal corresponding to the care of address is located.
  • a tunnel through the channel an optimized communication path between the transmitting mobile station and the receiving mobile station can be established.
  • the present invention has the effect of preventing a lot of load on the LMA, since a large amount of data does not pass through the LMA even if the number of mobile terminals to transmit and receive within the proxy mobile Internet protocol version 6 network increases. .
  • the present invention has the effect of minimizing the transmission delay due to a lot of data because the data to be transmitted and received is not concentrated in the LMA.
  • FIG. 1 is a schematic diagram of a system for optimizing communication paths between mobile stations in a proxy mobile Internet protocol version 6 network according to an embodiment of the present invention.
  • FIG. 2 is a block diagram of a MAG in a system for optimizing communication paths between mobile stations in the proxy mobile Internet protocol version 6 network.
  • FIG. 3 is a block diagram of an LMA in a system for optimizing communication paths between mobile stations in the Proxy Mobile Internet Protocol version 6 network.
  • FIG. 4 is a flowchart illustrating a method for optimizing a communication path between mobile terminals in a proxy mobile internet protocol version 6 network according to an embodiment of the present invention.
  • FIG. 5 is a diagram illustrating the configuration of a proxy binding query request message in the flowchart of FIG. 4.
  • FIG. 6 is a diagram illustrating a configuration of a response message to a proxy binding query request in the flowchart of FIG. 4.
  • the communication path optimization system 100 between the mobile terminals in the proxy mobile internet protocol version 6 network of the present invention for optimizing the communication path between the transmitting mobile terminal and the receiving mobile terminal is MAG (120T, 120R: Mobile Access Gateway) and LMA (Local Mobility Anchor).
  • the communication path optimization system 100 between the mobile terminals 110 and 140 has a location where the transmitting mobile terminal 110 is located without passing through the LMA 130.
  • a tunnel is formed between the MAG 120T and the MAG 120R at which the receiving mobile terminal 140 is always located, thereby performing data communication.
  • the MAG 120 of the mobile communication path optimization system 100 within the proxy mobile Internet protocol version 6 network of the present invention will be described in detail.
  • the MAGs 120T and 120R in the present invention may include the proxy binding query request module 122, the data transmission path initialization module 124, the tunnel formation module 126, and the message transmission module 128. It includes. Since the MAGs 120T and 120R perform different functions depending on where the transmitting-side mobile terminal 110 and the receiving-side mobile terminal 140 belong to, the MAG 120T and 120R are described below for convenience of description. The transmission side MAG 120T and the reception side MAG 120R will be described separately.
  • the proxy binding query request module 122 requests a proxy binding query to the LMA 130 including a home address (HoA) of the receiving mobile station 140.
  • HoA home address
  • the home address refers to an IP (Internet Protocol) address of the mobile terminal that is used the same even when the location of accessing the network is changed during data transmission and reception of the mobile terminal.
  • IP Internet Protocol
  • the data transmission path initialization module 124 initializes a data path such that data communication is performed between the receiving MAG 120R and the transmitting MAG 120T.
  • the tunnel forming module 126 forms a tunnel in the initialized data transmission path.
  • the message transmission module 128 transmits a response message for initializing the data transmission path.
  • the LMA 130 in the present invention includes a proxy care of address search module 132 and a message transmission module 134.
  • the proxy care of address retrieval module 132 receives the mobile terminal 140 matching the proxy binding query including the home address of the mobile terminal 140 from the MAG 120T in which the transmitting mobile terminal 110 is located. Search for Proxy CoA (Care-of Address).
  • the proxy care-of address is a receiving side mobile used to deliver the packet data to a receiving mobile terminal which a home agent (not shown, such as a router) intercepts and moves packet data generated from a transmitting mobile terminal. The temporary address of the terminal.
  • the message transmission module 134 includes the proxy care of address of the receiving mobile terminal 140 searched by the proxy care of address search module 132 and responds to the proxy binding query request received from the transmitting MAG 120T. Send a response message that responds to the request.
  • the LMA 130 stores a BCE (Binding Cache Entry) that lists a proxy care-of address that matches the home address of the receiving mobile station 140.
  • BCE Biting Cache Entry
  • the transmitting side MAG 120T that manages data transmission of the transmitting mobile station 110 is controlled by the LMA 130.
  • the proxy binding query is requested (S101).
  • the request message for the proxy binding query will include at least one bit reserved by the transmitting MAG 120T for use of another function of the proxy binding query message. Selects and sets the selected bit to 'Q' so that the message to be transmitted is recognized as a proxy binding query message. Further, the transmitting side MAG 120T allocates 32 bits of the proxy binding query message so that the home address of the receiving side mobile terminal 140 is stored, so that the home address of the receiving side mobile terminal 140 is the proxy binding. The query message is transmitted to the LMA 130.
  • the LMA 130 searches for a proxy care of address matched with the home address of the receiving mobile terminal 140 from the BCE stored in the LMA 130 (S102).
  • the BCE refers to a table that stores proxy care-of addresses matching each mobile terminal's unique home address.
  • the LMA 130 retrieves a proxy care-of address matching the home address of the receiving mobile terminal 140 from the BCE, and then transmits a response message to the proxy binding query request to the transmitting MAG 120T. (S103).
  • the response message for the requested proxy binding query request is transmitted such that the response message for the proxy binding query request is transmitted including the proxy care of address searched by the LMA 130. do.
  • the transmitting side MAG 120T When the transmitting side MAG 120T receives the response message for the proxy binding query request, it checks the location information of the receiving mobile terminal 140 through the proxy care of address included in the received response message. Thereafter, the transmitting side MAG (120T) initializes the data transmission path with the receiving side MAG (120R) in charge of the receiving side mobile terminal (140) (S104).
  • the receiving side MAG 120R forms a tunnel capable of bidirectionally transmitting data with the transmitting side MAG 120T using the initialized data transmission path (S105).
  • the BCE is periodically updated to allow 1: 1 communication between the transmitting MAG and the receiving MAG.
  • the receiving side MAG 120R After the receiving side MAG 120R forms a tunnel, it transmits a response message for initializing the data transmission path received from the transmitting side MAG 120T to the transmitting side MAG 120T (S106).
  • each mobile terminal 110. 140 performs data transmission through the formed tunnel (S107). .
  • This data transmission transmits data to be transmitted by the transmitting mobile station 110 to the transmitting MAG 120T, and transmits the data received by the transmitting MAG 120T through the receiving side MAG ( And transmits the data received by the receiving side MAG 120R to the receiving side mobile terminal 140.
  • the LMA searches for a care of address of a network to which the receiving side mobile terminal is newly connected, and initializes a data transmission path between MAGs in which a receiving mobile terminal corresponding to the care of address is located.
  • a tunnel through the network an optimized communication path between the transmitting mobile station and the receiving mobile station can be established.
  • the present invention can increase the data communication efficiency between mobile terminals by establishing an optimized communication path between mobile terminals.
  • the present invention even if the number of mobile terminals to be transmitted and received in the proxy mobile Internet protocol version 6 network increases because a large amount of data does not pass through the LMA, it is possible to prevent the load on the LMA. In addition, the present invention can minimize the transmission delay due to a lot of data because the data to be transmitted and received is not concentrated in the LMA. This makes it possible to efficiently use network resources in a proxy MIP environment.
  • the present invention by forming a two-way tunnel between the corresponding MAG of the mobile terminal without passing through the LMA for data transmission and reception, and performing direct data transmission and reception between the corresponding MAC of the mobile terminal through the formed tunnel, the number of mobile terminals is large As the amount of data increased according to the space does not pass through the LMA, a large load on the LMA can be prevented, thereby minimizing the transmission delay of the data. In particular, in the field of wireless data communication, there is great industrial applicability by transmitting a large amount of data without delay of data.

Abstract

The present invention relates to a system for optimizing communication paths between mobile stations in a proxy mobile Internet protocol version 6 network, and to a method for same. The system for optimizing communication paths between mobile stations in a proxy mobile Internet protocol version 6 network, which optimizes the communication path for data transmission/reception between a transmitting side mobile station and a receiving side mobile station, comprises: a local mobility anchor (LMA) which searches for a proxy care-of address matching the home address of the receiving side mobile station; and at least two mobile access gateways (MAGs) which check the location information of the receiving side mobile station located in the searched proxy care-of address, and control the transmitting side mobile station and the receiving side mobile station, wherein the MAG in which the transmitting side mobile station is located initializes a data transmission path to the MAG in which the receiving side mobile station is located to form a tunnel between the two MAGs. The thus-configured system of the present invention enables data transmission/reception to be performed directly between the MAGs of mobile stations without passing through the LMA for data transmission/reception, to thereby reduce the loads on the LMA, and to simultaneously efficiently use a network resource in a proxy MIP environment.

Description

프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말 간 통신경로 최적화 시스템 및 그 방법System and method for optimizing communication path between mobile terminals in proxy mobile internet protocol version 6 network
본 발명은 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말 간 통신 경로 최적화 시스템 및 그 방법에 관한 것으로, 특히 이동단말이 최적화된 데이터 통신경로를 통해 데이터 통신을 수행할 수 있는 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말 간 통신경로 최적화 시스템 및 그 방법에 관한 것이다. The present invention relates to a system and a method for optimizing a communication path between mobile terminals in a proxy mobile internet protocol version 6 network, and more particularly, to a proxy mobile internet protocol version 6 network capable of performing data communication through an optimized data communication path. The present invention relates to a communication path optimization system between mobile terminals and a method thereof.
차세대 인터넷 프로토콜인 IPv6(Internet Protocol version 6)환경에서 망 기반 이동성을 지원하도록 개발된 PMIPv6(Proxy Mobile Internet Protocol version 6)를 통해 이동단말간 데이터 교환이 이루어진다. Data exchange between mobile terminals is achieved through PMIPv6 (Proxy Mobile Internet Protocol version 6), which is developed to support network-based mobility in IPv6 (Internet Protocol version 6) environment.
이러한 이동단말 간의 데이터 교환은 망 내에 위치하는 지역 이동 앵커 (LMA: Local Mobility Anchor, 이하, 'LMA'라고 한다.)를 통해 이루어진다. Such data exchange between mobile terminals is performed through a local mobility anchor (LMA) located in a network.
송신측 이동단말이 전송하고자 하는 데이터를 상기 송신측 이동단말을 관할하는 송신측 MAG로 전송하고, 상기 송신측 MAG는 수신한 데이터를 상기 송신측 이동단말이 속해있는 지역 이동 앵커인 LMA로 전송한다. 상기 LMA는 수신한 데이터를 전송하고자 하는 수신측 이동단말이 속해 있는 LMA로 전송하고, 상기 수신측 이동단말의 LMA는 수신한 데이터를 수신측 MAG로 전달한다. 이 후, 상기 수신측 MAG가 수신측 이동단말로 전달된 데이터를 전송함으로써, 이동단말 간 데이터 교환이 이루어진다. The transmitting mobile terminal transmits the data to be transmitted to the transmitting MAG in charge of the transmitting mobile terminal, and the transmitting MAG transmits the received data to the LMA which is the local mobile anchor to which the transmitting mobile terminal belongs. . The LMA transmits the received data to the LMA to which the receiving side mobile terminal to which the data is transmitted belongs, and the LMA of the receiving side mobile terminal transmits the received data to the receiving side MAG. Thereafter, the receiving MAG transmits the data transmitted to the receiving mobile terminal, thereby performing data exchange between the mobile terminals.
하지만, 이러한 데이터 교환방식은 데이터를 교환하고자 하는 이동단말의 개수가 상기 프록시 모바일 IPv6망 내에 많아지게 되면, 송수신하고자 하는 데이터가 모두 상기 프록시 모바일 IPv6망을 관할하는 LMA를 거치게 되므로, 상기 LMA에 많은 부하가 걸리는 문제점이 발생하게 된다. However, in such a data exchange method, when the number of mobile terminals to exchange data increases in the proxy mobile IPv6 network, since all data to be transmitted and received passes through the LMA that governs the proxy mobile IPv6 network, The problem of the load will occur.
상기와 같은 종래 기술의 문제점을 해결하기 위해, 본 발명은 이동단말을 관할하는 MAG(Mobile Access Gateway)간에 데이터 전송경로인 터널을 형성함으로써, 지역 이동 앵커인 LMA를 통하지 않고, 데이터를 전송할 수 있는 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 시스템을 제공하고자 한다. In order to solve the problems of the prior art as described above, the present invention forms a tunnel, which is a data transmission path between MAGs (Mobile Access Gateways) that manages mobile terminals, so that data can be transmitted without going through an LMA, which is a local mobile anchor. To provide a communication path optimization system between mobile terminals in proxy mobile internet protocol version 6 network.
또한, 본 발명은 이동단말에 프록시 바인딩 질의를 요청하여 상기 이동단말을 관할하는 MAG간에 데이터 전송경로인 터널을 형성함으로써, 지역 이동 앵커인 LMA(Local Mobility Anchor)를 통하지 않고, 데이터를 전송할 수 있는 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말 간 통신경로 최적화 방법을 제공하고자 한다. In addition, the present invention by requesting a proxy binding query to the mobile terminal to form a tunnel as a data transmission path between the MAGs in charge of the mobile terminal, it is possible to transmit data without going through the local mobility anchor (LMA), which is a local mobile anchor To provide a method for optimizing communication paths between mobile terminals in proxy mobile internet protocol version 6 network.
위와 같은 과제를 해결하기 위한 본 발명의 한 특징에 따른 송신측 이동단말과 수신측 이동단말간에 데이터가 송수신되는 통신경로를 최적화하는 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 시스템은 상기 수신측 이동단말의 홈 주소에 매칭되는 프록시 케어오브 주소를 검색하는 LMA(Local Mobility Anchor)와; 상기 검색된 프록시 케어오브 주소에 위치하는 상기 수신측 이동단말의 위치정보를 확인하고, 상기 송신측 이동단말과 수신측 이동단말의 데이터전송을 관할하는 적어도 두 개의 MAG(Mobile Access Gateway);를 포함하되, 상기 송신측 이동단말이 위치하는 MAG가 상기 수신측 이동단말이 위치하는 MAG에 데이터 전송경로를 초기화하여 MAG간에 터널을 형성한다. In order to solve the above problems, a system for optimizing communication paths between mobile terminals in a proxy mobile internet protocol version 6 network for optimizing a communication path between data transmission and reception between a transmitting mobile terminal and a receiving mobile terminal is described above. A Local Mobility Anchor (LMA) for retrieving a proxy care of address matched with the home address of the receiving mobile station; At least two Mobile Access Gateway (MAG) to check the location information of the receiving mobile terminal located in the searched proxy care of address, and to control the data transmission of the transmitting mobile terminal and the receiving mobile terminal; The MAG in which the transmitting side mobile terminal is located initializes a data transmission path to the MAG in which the receiving side mobile terminal is located to form a tunnel between the MAGs.
바람직하게는 수신측 이동단말의 홈 주소를 포함하여 상기 LMA로 프록시 바인딩 질의를 요청하는 프록시바인딩 질의요청모듈과; 수신측 이동단말이 위치하는 MAG와 송신측 이동단말이 위치하는 MAG 사이에 데이터통신을 수행하는 데이터 전송경로를 초기화하는 데이터전송경로 초기화모듈과; 상기 초기화된 데이터 전송경로에 기초하여 터널을 형성하는 터널형성모듈과; 상기 데이터 전송경로 초기화에 대한 응답메시지를 전송하는 메시지 전송모듈;을 포함하는 MAG를 포함할 수 있다. Preferably a proxy binding query request module for requesting a proxy binding query to the LMA including the home address of the receiving mobile terminal; A data transmission path initialization module for initializing a data transmission path for performing data communication between the MAG where the receiving mobile terminal is located and the MAG where the transmitting mobile terminal is located; A tunnel forming module for forming a tunnel based on the initialized data transmission path; It may include a MAG including a; message transmission module for transmitting a response message for the data transmission path initialization.
바람직하게는 상기 MAG로부터 요청된 프록시 바인딩 질의와 매칭되는 수신측 이동단말의 프록시 케어오브 주소를 검색하는 프록시케어오브주소 검색모듈과; 상기 검색된 프록시 케어오브 주소를 포함하여 프록시 바인딩 질의요청에 대한 응답메시지를 전송하는 메시지전송모듈;을 포함하는 LMA를 포함할 수 있다.A proxy care of address search module for searching for a proxy care of address of a receiving mobile terminal that matches a proxy binding query requested from the MAG; It may include a LMA including a; message transmission module for transmitting a response message to the proxy binding query request, including the retrieved proxy care of address.
특히 상기 수신측 이동단말의 홈 주소와 매칭되는 프록시 케이오브 주소를 저장하는 BCE(Binding Cache Entry)를 더 포함하는 LMA를 포함할 수 있다. In particular, the LMA may further include a binding cache entry (BCE) for storing a proxy Kiob address that matches the home address of the receiving mobile station.
위와 같은 과제를 해결하기 위한 본 발명의 또 다른 특징에 따른 송신측 이동단말과 수신측 이동단말간에 데이터가 송수신되는 통신경로를 최적화하는 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 방법은 송신측 이동단말이 위치하는 MAG가 상기 수신측 이동단말의 홈 주소를 포함하는 프록시 바인딩 질의를 LMA로 요청하는 요청단계와; 상기 LMA가 요청된 프록시 바인딩 질의와 매칭되는 수신측 이동단말의 프록시 케어오브 주소를 검색하는 검색단계와; 수신측 이동단말이 위치하는 MAG가 상기 검색된 프록시 케어오브 주소에 해당하는 송신측 이동단말이 위치하는 MAG와 데이터 전송경로를 초기화하여 터널을 형성하는 형성단계; 및 상기 송신측 이동단말과 수신측 이동단말이 상기 형성된 터널을 통해 데이터를 송수신하는 송수신단계;를 포함한다.According to another aspect of the present invention, a method for optimizing communication paths between mobile terminals in a proxy mobile internet protocol version 6 network for optimizing communication paths between a transmitting mobile station and a receiving mobile terminal is provided. Requesting, by the MAG where the transmitting mobile terminal is located, a proxy binding query to the LMA including a home address of the receiving mobile terminal; Retrieving a proxy care-of address of a receiving mobile terminal that matches the requested proxy binding query by the LMA; Forming a tunnel by initializing a data transmission path with a MAG in which a transmitting mobile station corresponding to the found proxy care of address is located, by the MAG in which a receiving mobile terminal is located; And a transmitting / receiving step of transmitting and receiving data between the transmitting side mobile terminal and the receiving side mobile terminal through the formed tunnel.
바람직하게는 상기 LMA가 요청된 프록시 바인딩 질의에 따른 상기 프록시 케어오브 주소 검색한 후, 검색된 프록시 케어오브 주소를 포함하는 응답메시지를 상기 송신측 MAG로 전송하는 검색단계를 포함할 수 있다. Preferably, the LMA may include searching for the proxy care of address according to the requested proxy binding query, and then transmitting a response message including the found proxy care of address to the transmitting MAG.
바람직하게는 상기 송신측 이동단말이 위치하는 MAG가 상기 수신측 이동단말이 위치하는 MAG와의 사이에 데이터 전송경로를 초기화하는 초기화과정과; 상기 수신측 이동단말이 위치하는 MAG가 상기 초기화된 데이터 전송경로를 양방향 터널로 형성하는 형성과정과; 상기 수신측 이동단말이 위치하는 MAG가 상기 터널형성 후, 상기 데이터 전송경로 초기화에 따른 응답메시지를 전송하는 응답과정;을 포함하는 형성단계를 포함할 수 있다. Preferably, an initialization process of initializing a data transmission path between a MAG in which the transmitting side mobile terminal is located and a MAG in which the receiving side mobile terminal is located; A step of forming, by the MAG in which the receiving mobile terminal is located, the initialized data transmission path into a bidirectional tunnel; And a response process of transmitting, by the MAG where the receiving mobile terminal is located, a response message according to the data transmission path initialization after the tunnel is formed.
특히, 상기 송신측 이동단말이 상기 송신측 이동단말이 위치하는 MAG로 데이터를 전송하는 제1과정과; 상기 송신측 이동단말이 위치하는 MAG가 상기 형성된 터널을 통해 상기 수신측 이동단말이 위치하는 MAG로 상기 데이터를 전송하는 제2과정과; 상기 수신측 이동단말이 위치하는 MAG가 상기 수신측 이동단말로 상기 데이터를 전송하는 제3과정;을 포함하는 송수신단계를 포함할 수 있다. In particular, a first process of transmitting data to the MAG in which the transmitting mobile terminal is located; A second step of transmitting, by the MAG in which the transmitting mobile terminal is located, the data to the MAG in which the receiving mobile terminal is located through the formed tunnel; And a third step of transmitting, by the MAG in which the receiving side mobile terminal is located, the data to the receiving side mobile terminal.
상술한 바와 같이, 본 발명은 LMA가 상기 수신측 이동단말이 이동하여 접속한 네트워크의 케어오브 주소를 검색하여, 상기 케어오브 주소에 해당하는 수신측 이동단말이 위치하는 MAG간 데이터 전송경로 초기화를 통해 터널을 형성함으로써, 송신측 이동단말과 수신측 이동단말간 최적화된 통신경로를 구축할 수 있는 효과가 있다. As described above, in the present invention, the LMA searches for a care of address of a network to which the receiving side mobile terminal moves and accesses, and initializes a data transmission path between MAGs in which a receiving side mobile terminal corresponding to the care of address is located. By forming a tunnel through the channel, an optimized communication path between the transmitting mobile station and the receiving mobile station can be established.
이와 같이 본 발명에 의하면 이동단말간 최적화된 통신경로를 구축할 수 있으므로, 이동단말간의 데이터 통신 효율을 증대시킬 수 있는 효과가 있다. As described above, according to the present invention, since an optimized communication path between mobile terminals can be established, data communication efficiency between mobile terminals can be increased.
뿐만 아니라, 본 발명은 프록시 모바일 인터넷 프로토콜 버전6 망 내에 송수신하고자 하는 이동단말의 수가 많아지더라도 많은 양의 데이터가 LMA를 통하지 않으므로, 상기 LMA에 많은 부하가 발생되는 것을 방지할 수 있는 효과가 있다. In addition, the present invention has the effect of preventing a lot of load on the LMA, since a large amount of data does not pass through the LMA even if the number of mobile terminals to transmit and receive within the proxy mobile Internet protocol version 6 network increases. .
또한, 본 발명은 송수신하고자 하는 데이터가 LMA로 집중되지 않기 때문에 많은 데이터로 인한 전송지연을 최소화할 수 있는 효과가 있다. In addition, the present invention has the effect of minimizing the transmission delay due to a lot of data because the data to be transmitted and received is not concentrated in the LMA.
이에 따라, 프록시 MIP 환경에서의 네트워크 자원을 효율적으로 사용할 수 있는 효과가 있다. Accordingly, there is an effect that can efficiently use network resources in the proxy MIP environment.
도 1은 본 발명의 일 실시 예에 따른 프록시 모바일 인터넷 프로토콜 버전6망 내 이동단말간 통신경로 최적화 시스템의 개략도이다.  1 is a schematic diagram of a system for optimizing communication paths between mobile stations in a proxy mobile Internet protocol version 6 network according to an embodiment of the present invention.
도 2는 상기 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 시스템 중 MAG의 블록도이다.  FIG. 2 is a block diagram of a MAG in a system for optimizing communication paths between mobile stations in the proxy mobile Internet protocol version 6 network.
도 3은 상기 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 시스템 중 LMA의 블록도이다.  FIG. 3 is a block diagram of an LMA in a system for optimizing communication paths between mobile stations in the Proxy Mobile Internet Protocol version 6 network.
도 4는 본 발명의 일 실시 예에 따른 프록시 모바일 인터넷 프로토콜 버전6망 내 이동단말간 통신경로 최적화 방법의 순서도이다.  4 is a flowchart illustrating a method for optimizing a communication path between mobile terminals in a proxy mobile internet protocol version 6 network according to an embodiment of the present invention.
도 5는 상기 도 4의 순서도 중 프록시 바인딩 질의 요청메시지 구성을 나타내는 도면이다.  FIG. 5 is a diagram illustrating the configuration of a proxy binding query request message in the flowchart of FIG. 4.
도 6은 상기 도 4의 순서도 중 프록시 바인딩 질의 요청에 대한 응답메시지 구성을 나타내는 도면이다.  FIG. 6 is a diagram illustrating a configuration of a response message to a proxy binding query request in the flowchart of FIG. 4.
***도면의 주요부분에 대한 부호의 설명*** *** Explanation of symbols for main parts of drawing ***
110: 송신측 이동단말 120T: 송신측 MAG 110: transmitting side mobile terminal 120T: transmitting side MAG
130: LMA 120R: 수신측 MAG 130: LMA 120R: Receiver MAG
140: 수신측 이동단말  140: mobile terminal of the receiving side
이하, 본 발명을 바람직한 실시 예와 첨부한 도면을 참고로 하여 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 상세히 설명한다. 그러나 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며, 여기에서 설명하는 실시 예에 한정되는 것은 아니다. Hereinafter, exemplary 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. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.
이하, 도 1을 참조하여 본 발명의 한 실시 예에 따른 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말 간 통신 경로 최적화 시스템을 구체적으로 설명한다.Hereinafter, a system for optimizing communication paths between mobile terminals in a proxy mobile internet protocol version 6 network according to an embodiment of the present invention will be described in detail with reference to FIG. 1.
도 1에 도시된 바와 같이, 송신측 이동단말 및 수신측 이동단말 사이에서 통신경로를 최적화하는 본 발명의 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말 간 통신경로 최적화 시스템(100)은 MAG(120T, 120R: Mobile Access Gateway)와 LMA(130: Local Mobility Anchor)를 포함한다. 이러한 본 발명의 프록시 모바일 IPv6망 내 이동단말 간 통신경로 최적화 시스템(100)은 이동단말(110, 140)간 데이터 통신 시, LMA(130)를 거치지 않고 상기 송신측 이동단말(110)이 위치하는 MAG(120T)와 상시 수신측 이동단말(140)이 위치하는 MAG(120R) 사이에 터널이 형성되어, 데이터 통신이 이루어진다. As shown in FIG. 1, the communication path optimization system 100 between the mobile terminals in the proxy mobile internet protocol version 6 network of the present invention for optimizing the communication path between the transmitting mobile terminal and the receiving mobile terminal is MAG (120T, 120R: Mobile Access Gateway) and LMA (Local Mobility Anchor). In the proxy mobile IPv6 network of the present invention, the communication path optimization system 100 between the mobile terminals 110 and 140 has a location where the transmitting mobile terminal 110 is located without passing through the LMA 130. A tunnel is formed between the MAG 120T and the MAG 120R at which the receiving mobile terminal 140 is always located, thereby performing data communication.
이하 도 2를 참조하여, 본 발명의 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 시스템(100) 중 MAG(120)에 대하여 자세히 살펴보도록 한다.Hereinafter, with reference to FIG. 2, the MAG 120 of the mobile communication path optimization system 100 within the proxy mobile Internet protocol version 6 network of the present invention will be described in detail.
도 2에 도시된 바와 같이, 본 발명에서의 MAG(120T, 120R)는 프록시 바인딩 질의 요청 모듈(122)과 데이터 전송경로 초기화 모듈(124)과 터널형성모듈(126) 및 메시지 전송모듈(128)을 포함한다. 이러한 MAG(120T, 120R)는 송신측 이동단말(110)과 수신측 이동단말(140)이 어디에 속하는지에 따라 상이한 기능을 수행하므로, 이하에서는 설명의 편의를 위해, 상기 MAG(120T, 120R)를 송신측 MAG(120T)와 수신측 MAG(120R)로 구분하여 설명하기로 한다. As shown in FIG. 2, the MAGs 120T and 120R in the present invention may include the proxy binding query request module 122, the data transmission path initialization module 124, the tunnel formation module 126, and the message transmission module 128. It includes. Since the MAGs 120T and 120R perform different functions depending on where the transmitting-side mobile terminal 110 and the receiving-side mobile terminal 140 belong to, the MAG 120T and 120R are described below for convenience of description. The transmission side MAG 120T and the reception side MAG 120R will be described separately.
프록시 바인딩 질의 요청 모듈(122)은 수신측 이동단말(140)의 홈 주소(HoA: Home Address)를 포함하여 상기 LMA(130)로 프록시 바인딩 질의를 요청한다. The proxy binding query request module 122 requests a proxy binding query to the LMA 130 including a home address (HoA) of the receiving mobile station 140.
상기 홈 주소는 이동단말의 데이터 송수신 시, 네트워크에 접속하는 위치가 달라지게 되더라도 계속 동일하게 사용되는 상기 이동단말의 IP(Internet Protocol)주소를 말한다. The home address refers to an IP (Internet Protocol) address of the mobile terminal that is used the same even when the location of accessing the network is changed during data transmission and reception of the mobile terminal.
데이터 전송경로 초기화 모듈(124)은 상기 수신측 MAG(120R)와 송신측 MAG(120T)사이에 데이터통신이 수행되도록 데이터 경로를 초기화한다. The data transmission path initialization module 124 initializes a data path such that data communication is performed between the receiving MAG 120R and the transmitting MAG 120T.
터널형성모듈(126)은 상기 초기화된 데이터 전송경로에 터널을 형성한다. The tunnel forming module 126 forms a tunnel in the initialized data transmission path.
메시지 전송모듈(128)은 상기 데이터 전송경로 초기화에 대한 응답메시지를 전송한다.The message transmission module 128 transmits a response message for initializing the data transmission path.
이하 도 3을 참조하여, 본 발명의 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 시스템(100) 중 LMA(130)에 대하여 자세히 살펴보도록 한다.Hereinafter, the LMA 130 of the communication path optimization system between mobile terminals in the proxy mobile internet protocol version 6 network of the present invention will be described in detail with reference to FIG. 3.
도 3에 도시된 바와 같이, 본 발명에서의 LMA(130)는 프록시 케어오브 주소 검색모듈(132)과 메시지 전송모듈(134)을 포함한다. As shown in FIG. 3, the LMA 130 in the present invention includes a proxy care of address search module 132 and a message transmission module 134.
프록시 케어오브 주소 검색모듈(132)은 송신측 이동단말(110)이 위치하는MAG(120T)로부터 수신측 이동단말(140)의 홈 주소를 포함하는 프록시 바인딩 질의와 매칭되는 수신측 이동단말(140)의 프록시 케어오브 주소(Proxy CoA: Care-of Address)를 검색한다. 상기 프록시 케어오브 주소는 라우터와 같은 홈 에이전트(미도시, Home Agent)가 송신측 이동단말에서 발생된 패킷데이터를 가로채어 이동한 수신측 이동단말로 상기 패킷데이터를 전달하기 위해 사용되는 수신측 이동단말의 임시주소를 말한다. The proxy care of address retrieval module 132 receives the mobile terminal 140 matching the proxy binding query including the home address of the mobile terminal 140 from the MAG 120T in which the transmitting mobile terminal 110 is located. Search for Proxy CoA (Care-of Address). The proxy care-of address is a receiving side mobile used to deliver the packet data to a receiving mobile terminal which a home agent (not shown, such as a router) intercepts and moves packet data generated from a transmitting mobile terminal. The temporary address of the terminal.
메시지 전송모듈(134)은 상기 프록시 케어오브 주소 검색모듈(132)이 검색한 수신측 이동단말(140)의 프록시 케어오브 주소를 포함하여, 송신측 MAG(120T)로부터 수신한 프록시 바인딩 질의 요청에 대하여 응답하는 응답메시지를 전송한다. The message transmission module 134 includes the proxy care of address of the receiving mobile terminal 140 searched by the proxy care of address search module 132 and responds to the proxy binding query request received from the transmitting MAG 120T. Send a response message that responds to the request.
이러한 LMA(130)는 상기 수신측 이동단말(140)의 홈 주소에 매칭되는 프록시 케어오브 주소를 테이블화한 BCE(Binding Cache Entry)를 저장한다. The LMA 130 stores a BCE (Binding Cache Entry) that lists a proxy care-of address that matches the home address of the receiving mobile station 140.
이하, 도 4를 참조하여 본 발명의 한 실시 예에 따른 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 방법을 구체적으로 설명한다. Hereinafter, a method for optimizing a communication path between mobile terminals in a proxy mobile internet protocol version 6 network according to an embodiment of the present invention will be described in detail with reference to FIG. 4.
도 4에 도시된 바와 같이, 본 발명인 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 방법은 송신측 이동단말(110)의 데이터 전송을 관할하는 송신측 MAG(120T)가 LMA(130)로 프록시 바인딩 질의를 요청한다(S101). As shown in FIG. 4, in the method of optimizing the communication path between mobile stations in the proxy mobile Internet protocol version 6 network of the present invention, the transmitting side MAG 120T that manages data transmission of the transmitting mobile station 110 is controlled by the LMA 130. The proxy binding query is requested (S101).
이하, 도 5를 참조하여 상기 프록시 바인딩 질의에 대한 요청메시지를 살펴보면, 상기 송신측 MAG(120T)가 프록시 바인딩 질의 메시지 중 다른 기능의 사용을 위해 비워둔 비트(Reserved Bit) 중 적어도 하나의 비트를 선택하고, 송신하고자 하는 메시지가 프록시 바인딩 질의메시지로 인식되도록 상기 선택된 비트를 'Q'로 설정한다. 또한, 상기 송신측 MAG(120T)는 상기 프록시 바인딩 질의 메시지 중 수신측 이동단말(140)의 홈 주소가 저장되도록 32비트를 할당하여, 상기 수신측 이동단말(140)의 홈 주소가 상기 프록시 바인딩 질의 메시지를 통해 LMA(130)로 전송되도록 한다. Hereinafter, referring to FIG. 5, the request message for the proxy binding query will include at least one bit reserved by the transmitting MAG 120T for use of another function of the proxy binding query message. Selects and sets the selected bit to 'Q' so that the message to be transmitted is recognized as a proxy binding query message. Further, the transmitting side MAG 120T allocates 32 bits of the proxy binding query message so that the home address of the receiving side mobile terminal 140 is stored, so that the home address of the receiving side mobile terminal 140 is the proxy binding. The query message is transmitted to the LMA 130.
상기 LMA(130)가 수신측 이동단말(140)의 홈 주소에 매칭되는 프록시 케어오브 주소를 상기 LMA(130)의 내부에 저장된 BCE로부터 검색한다(S102). 상기 BCE는 각 이동단말의 고유한 홈 주소에 매칭되는 프록시 케어오브 주소를 저장한 테이블을 말한다. The LMA 130 searches for a proxy care of address matched with the home address of the receiving mobile terminal 140 from the BCE stored in the LMA 130 (S102). The BCE refers to a table that stores proxy care-of addresses matching each mobile terminal's unique home address.
상기 LMA(130)가 상기 BCE로부터 상기 수신측 이동단말(140)의 홈 주소에 매칭되는 프록시 케어오브 주소를 검색한 후, 상기 프록시 바인딩 질의 요청에 대한 응답메시지를 송신측 MAG(120T)로 전송한다(S103).The LMA 130 retrieves a proxy care-of address matching the home address of the receiving mobile terminal 140 from the BCE, and then transmits a response message to the proxy binding query request to the transmitting MAG 120T. (S103).
이하, 도 6을 참조하여 상기 요청된 프록시 바인딩 질의요청에 대한 응답메시지에 대하여 살펴보면, 상기 프록시 바인딩 질의 요청에 대한 응답메시지는 앞서 상기 LMA(130)가 검색한 프록시 케어오브 주소를 포함하여 전송되도록 한다. Hereinafter, referring to FIG. 6, the response message for the requested proxy binding query request is transmitted such that the response message for the proxy binding query request is transmitted including the proxy care of address searched by the LMA 130. do.
이 때, 상기 LMA(130)가 상기 BCE로부터 프록시 케어오브 주소검색에 실패한 경우, 검색오류를 포함하는 응답메시지를 상기 송신측 MAG(120T)로 전송하여, 수신한 상기 수신측 이동단말(140)의 홈 주소가 잘못되었음을 전달한다.At this time, when the LMA 130 fails to search for a proxy care of address from the BCE, a response message including a search error is transmitted to the transmitting side MAG 120T, and the received mobile terminal 140 receives the received message. To communicate that the home address is invalid.
상기 송신측 MAG(120T)가 상기 프록시 바인딩 질의요청에 대한 응답메시지를 수신하면, 수신한 응답메시지에 포함된 프록시 케어오브 주소를 통해 수신측 이동단말(140)의 위치정보를 확인한다. 이 후, 상기 송신측 MAG(120T)는 상기 수신측 이동단말(140)을 관할하는 수신측 MAG(120R)와 데이터 전송경로를 초기화 시킨다(S104). When the transmitting side MAG 120T receives the response message for the proxy binding query request, it checks the location information of the receiving mobile terminal 140 through the proxy care of address included in the received response message. Thereafter, the transmitting side MAG (120T) initializes the data transmission path with the receiving side MAG (120R) in charge of the receiving side mobile terminal (140) (S104).
상기 수신측 MAG(120R)가 초기화된 데이터 전송경로를 이용하여 상기 송신측 MAG(120T)와 데이터를 양방향 전송할 수 있는 터널로 형성한다(S105).The receiving side MAG 120R forms a tunnel capable of bidirectionally transmitting data with the transmitting side MAG 120T using the initialized data transmission path (S105).
이러한 터널형성 과정은 상기 BCE가 주기적으로 업데이트되어, 상기 송신측 MAG와 수신측 MAG 사이에 1:1 방식의 통신이 수행되도록 한다. In this tunnel formation process, the BCE is periodically updated to allow 1: 1 communication between the transmitting MAG and the receiving MAG.
상기 수신측 MAG(120R)가 터널을 형성한 후, 상기 송신측 MAG(120T)로부터 수신한 데이터 전송경로 초기화에 대한 응답메시지를 상기 송신측 MAG(120T)로 전송한다(S106).After the receiving side MAG 120R forms a tunnel, it transmits a response message for initializing the data transmission path received from the transmitting side MAG 120T to the transmitting side MAG 120T (S106).
이와 같이, 상기 송신측 MAG(120T)와 수신측 MAG(120R)간에 데이터 전송경로인 터널이 형성됨에 따라, 각 이동단말(110. 140)이 상기 형성된 터널을 통해 데이터 전송을 수행한다(S107). 이러한 데이터 전송은 상기 송신측 이동단말(110)이 전송하고자 하는 데이터를 송신측 MAG(120T)로 전송하고, 상기 송신측 MAG(120T)가 수신한 데이터를 앞서 형성된 터널을 통해 상기 수신측 MAG(120R)로 전송하고, 상기 수신측 MAG(120R)가 수신한 데이터를 수신측 이동단말(140)로 전송한다. As such, as a tunnel, which is a data transmission path, is formed between the transmitting side MAG 120T and the receiving side MAG 120R, each mobile terminal 110. 140 performs data transmission through the formed tunnel (S107). . This data transmission transmits data to be transmitted by the transmitting mobile station 110 to the transmitting MAG 120T, and transmits the data received by the transmitting MAG 120T through the receiving side MAG ( And transmits the data received by the receiving side MAG 120R to the receiving side mobile terminal 140.
상술한 바와 같이, 본 발명은 LMA가 상기 수신측 이동단말이 이동하여 새로 접속한 네트워크의 케어오브 주소를 검색하여, 상기 케어오브 주소에 해당하는 수신측 이동단말이 위치하는 MAG간 데이터 전송경로 초기화를 통해 터널을 형성함으로써, 송신측 이동단말과 수신측 이동단말간 최적화된 통신경로를 구축할 수 있는 효과가 있다. 또한, 본 발명은 이동단말간 최적화된 통신경로를 구축함으로써, 이동단말간의 데이터 통신 효율을 증대시킬 수 있다. As described above, in the present invention, the LMA searches for a care of address of a network to which the receiving side mobile terminal is newly connected, and initializes a data transmission path between MAGs in which a receiving mobile terminal corresponding to the care of address is located. By forming a tunnel through the network, an optimized communication path between the transmitting mobile station and the receiving mobile station can be established. In addition, the present invention can increase the data communication efficiency between mobile terminals by establishing an optimized communication path between mobile terminals.
뿐만 아니라, 본 발명은 프록시 모바일 인터넷 프로토콜 버전6 망 내에 송수신하고자 하는 이동단말의 수가 많아지더라도 많은 양의 데이터가 LMA를 통하지 않으므로, 상기 LMA에 많은 부하가 발생되는 것을 방지할 수 있다. 또한, 본 발명은 송수신하고자 하는 데이터가 LMA로 집중되지 않기 때문에 많은 데이터로 인한 전송지연을 최소화할 수 있다. 이에 따라, 프록시 MIP 환경에서의 네트워크 자원을 효율적으로 사용할 수 있다. In addition, the present invention, even if the number of mobile terminals to be transmitted and received in the proxy mobile Internet protocol version 6 network increases because a large amount of data does not pass through the LMA, it is possible to prevent the load on the LMA. In addition, the present invention can minimize the transmission delay due to a lot of data because the data to be transmitted and received is not concentrated in the LMA. This makes it possible to efficiently use network resources in a proxy MIP environment.
이상 본 발명에 의한 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 시스템 및 그 방법에 대하여 설명하였다. 이러한 본 발명의 기술적 구성은 본 발명이 속하는 기술 분야의 당업자가 본 발명의 그 기술적 사상이나 필수적 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. The communication path optimization system and method between the mobile terminals in the proxy mobile Internet protocol version 6 network according to the present invention have been described above. Such a technical configuration of the present invention will be understood by those skilled in the art that the present invention can be implemented in other specific forms without changing the technical spirit or essential features of the present invention.
그러므로 이상에서 기술한 실시 예는 모든 면에서 예시적인 것이며, 한정적인 것이 아닌 것으로서 이해되어야 하고, 본 발명의 범위는 전술한 상세한 설명보다는 후술하는 특허청구범위에 의하여 나타내어지며, 특허청구범위의 의미 및 범위 그리고 그 등가개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다. Therefore, the embodiments described above are intended to be illustrative in all respects and not to be considered as limiting, the scope of the present invention is indicated by the appended claims rather than the foregoing description, the meaning of the claims and All changes or modifications derived from the scope and the equivalent concept should be construed as being included in the scope of the present invention.
본 발명에 따라, 데이터송수신을 위해 거쳐야 하는 LMA를 거치지 않고, 이동단말의 해당 MAG간에 양방향 터널을 형성하고 상기 형성된 터널을 통해 이동단말의 해당MAG간 직접 데이터 송수신을 수행함으로써, 이동단말의 수가 많아지면 이에 따라 늘어나는 데이터의 양이 LMA를 통하지 않으므로 LMA에 많은 부하가 발생하는 것을 방지할 수 있고, 이에 따라 데이터의 전송지연을 최소화할 수 있다. 특히, 무선 데이터 통신 분야에 있어서, 데이터의 지연없이 많은 양의 데이터를 전송함에 따라 산업상 이용가능성이 크다. According to the present invention, by forming a two-way tunnel between the corresponding MAG of the mobile terminal without passing through the LMA for data transmission and reception, and performing direct data transmission and reception between the corresponding MAC of the mobile terminal through the formed tunnel, the number of mobile terminals is large As the amount of data increased according to the space does not pass through the LMA, a large load on the LMA can be prevented, thereby minimizing the transmission delay of the data. In particular, in the field of wireless data communication, there is great industrial applicability by transmitting a large amount of data without delay of data.

Claims (8)

  1. 송신측 이동단말과 수신측 이동단말간에 데이터가 송수신되는 통신경로를 최적화하는 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 시스템에 있어서, In a communication path optimization system between mobile terminals in a proxy mobile internet protocol version 6 network that optimizes a communication path between data transmission and reception between a transmitting mobile terminal and a receiving mobile terminal,
    상기 수신측 이동단말의 홈 주소에 매칭되는 프록시 케어오브 주소를 검색하는 LMA(Local Mobility Anchor)와; A Local Mobility Anchor (LMA) for searching for a proxy care-of address matched with a home address of the receiving mobile station;
    상기 검색된 프록시 케어오브 주소에 위치하는 상기 수신측 이동단말의 위치정보를 확인하고, 상기 송신측 이동단말과 수신측 이동단말의 데이터 전송을 관할하는 적어도 두 개의 MAG(Mobile Access Gateway);를 포함하되, At least two MAGs (Mobile Access Gateway) for identifying the location information of the receiving mobile terminal located at the retrieved proxy care of address, and for managing data transmission of the transmitting mobile terminal and the receiving mobile terminal; ,
    상기 송신측 이동단말이 위치하는 MAG가 상기 수신측 이동단말이 위치하는 MAG에 데이터 전송경로를 초기화하여 MAG간에 터널을 형성하는 것을 특징으로 하는 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 시스템.  Optimizing the communication path between mobile terminals in the proxy mobile internet protocol version 6 network, wherein the MAG in which the transmitting mobile terminal is located initializes a data transmission path in the MAG in which the receiving mobile terminal is located. system.
  2. 제1항에 있어서, The method of claim 1,
    상기 MAG는 The MAG is
    수신측 이동단말의 홈 주소를 포함하여 상기 LMA로 프록시 바인딩 질의를 요청하는 프록시바인딩 질의요청모듈과; A proxy binding query request module for requesting a proxy binding query to the LMA including a home address of a receiving mobile terminal;
    수신측 이동단말이 위치하는 MAG와 송신측 이동단말이 위치하는 MAG 사이에 데이터통신을 수행하는 데이터 전송경로를 초기화하는 데이터전송경로 초기화모듈과; A data transmission path initialization module for initializing a data transmission path for performing data communication between the MAG where the receiving mobile terminal is located and the MAG where the transmitting mobile terminal is located;
    상기 초기화된 데이터 전송경로에 기초하여 터널을 형성하는 터널형성모듈과; A tunnel forming module for forming a tunnel based on the initialized data transmission path;
    상기 데이터 전송경로 초기화에 대한 응답메시지를 전송하는 메시지전송모듈;을 포함하는 것을 특징으로 하는 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 시스템.  And a message transmission module for transmitting a response message for initializing the data transmission path.
  3. 제1항에 있어서, The method of claim 1,
    상기 LMA는 The LMA is
    상기 MAG로부터 요청된 프록시 바인딩 질의와 매칭되는 수신측 이동단말의 프록시 케어오브 주소를 검색하는 프록시케어오브 주소검색모듈과; A proxy care of address search module for searching for a proxy care of address of a receiving mobile terminal that matches the proxy binding query requested from the MAG;
    상기 검색된 프록시 케어오브 주소를 포함하여 프록시 바인딩 질의요청에 대한 응답메시지를 전송하는 메시지전송모듈;을 포함하는 것을 특징으로 하는 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 시스템.  And a message transmission module configured to transmit a response message to the proxy binding query request including the searched proxy care-of address.
  4. 제3항에 있어서, The method of claim 3,
    상기 LMA는  The LMA is
    상기 수신측 이동단말의 홈 주소와 매칭되는 프록시 케이오브 주소를 저장하는 BCE(Binding Cache Entry)를 더 포함하는 것을 특징으로 하는 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 시스템.  And a Binding Cache Entry (BCE) for storing a proxy Kiob address that matches the home address of the receiving mobile station. 6.
  5. 송신측 이동단말과 수신측 이동단말간에 데이터가 송수신되는 통신경로를 최적화하는 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 방법에 있어서, A method for optimizing communication paths between mobile terminals in a proxy mobile internet protocol version 6 network for optimizing communication paths for data transmission and reception between a transmitting mobile terminal and a receiving mobile terminal,
    송신측 이동단말이 위치하는 MAG가 상기 수신측 이동단말의 홈 주소를 포함하는 프록시 바인딩 질의를 LMA로 요청하는 요청단계와; Requesting, by the MAG where the transmitting mobile terminal is located, a proxy binding query to the LMA including a home address of the receiving mobile terminal;
    상기 LMA가 요청된 프록시 바인딩 질의와 매칭되는 수신측 이동단말의 프록시 케어오브 주소를 검색하는 검색단계와; Retrieving a proxy care-of address of a receiving mobile terminal that matches the requested proxy binding query by the LMA;
    수신측 이동단말이 위치하는 MAG가 상기 검색된 프록시 케어오브 주소에 해당하는 송신측 이동단말이 위치하는 MAG와 데이터 전송경로를 초기화하여 터널을 형성하는 형성단계와;  Forming a tunnel by initializing a data transmission path with a MAG in which a transmitting mobile terminal corresponding to the searched proxy care-of address is located, by the MAG in which a receiving mobile terminal is located;
    상기 송신측 이동단말과 수신측 이동단말이 상기 형성된 터널을 통해 데이터를 송수신하는 송수신단계;를 포함하는 것을 특징으로 하는 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 방법.  And transmitting and receiving data between the transmitting mobile station and the receiving mobile station through the formed tunnel. 6.
  6. 제5항에 있어서, The method of claim 5,
    상기 검색단계는  The search step
    상기 LMA가 요청된 프록시 바인딩 질의에 따른 상기 프록시 케어오브 주소 검색한 후, 검색된 프록시 케어오브 주소를 포함하는 응답메시지를 상기 송신측 MAG로 전송하는 것을 특징으로 하는 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 방법. The LMA searches for the proxy care of address according to the requested proxy binding query, and then transfers a response message including the found proxy care of address to the sender MAG. Method of optimizing communication path between terminals.
  7. 제5항에 있어서, The method of claim 5,
    상기 형성단계는  The forming step
    상기 송신측 이동단말이 위치하는 MAG가 상기 수신측 이동단말이 위치하는 MAG와의 사이에 데이터 전송경로를 초기화하는 초기화과정과; An initialization process of initializing a data transmission path between a MAG in which the transmitting mobile terminal is located and a MAG in which the receiving mobile terminal is located;
    상기 수신측 이동단말이 위치하는 MAG가 상기 초기화된 데이터 전송경로를 양방향 터널로 형성하는 형성과정과; A step of forming, by the MAG in which the receiving mobile terminal is located, the initialized data transmission path into a bidirectional tunnel;
    상기 수신측 이동단말이 위치하는 MAG가 상기 터널형성 후, 상기 데이터 전송경로 초기화에 따른 응답메시지를 전송하는 응답과정;을 포함하는 것을 특징으로 하는 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 방법. And a response process of transmitting a response message according to the data transmission path initialization after the MAG in which the receiving side mobile terminal is located has formed the tunnel; and a communication path between mobile terminals in the proxy mobile internet protocol version 6 network. Optimization method.
  8. 제5항에 있어서, The method of claim 5,
    상기 송수신단계는  The transmitting and receiving step
    상기 송신측 이동단말이 상기 송신측 이동단말이 위치하는 MAG로 데이터를 전송하는 제1과정과; A first step of transmitting data to the MAG in which the transmitting mobile terminal is located;
    상기 송신측 이동단말이 위치하는 MAG가 상기 형성된 터널을 통해 상기 수신측 이동단말이 위치하는 MAG로 상기 데이터를 전송하는 제2과정과; A second step of transmitting, by the MAG in which the transmitting mobile terminal is located, the data to the MAG in which the receiving mobile terminal is located through the formed tunnel;
    상기 수신측 이동단말이 위치하는 MAG가 상기 수신측 이동단말로 상기 데이터를 전송하는 제3과정;을 포함하는 것을 특징으로 하는 프록시 모바일 인터넷 프로토콜 버전6 망 내 이동단말간 통신경로 최적화 방법. And a third step of transmitting, by the MAG in which the receiving mobile terminal is located, to the receiving mobile terminal, the mobile terminal in the proxy mobile internet protocol version 6 network.
PCT/KR2009/004942 2009-06-02 2009-09-02 System for optimizing communication paths between mobile stations in a proxy mobile internet protocol version 6 network, and method for same WO2010140739A1 (en)

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