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

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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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WO
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Prior art keywords
mobile
terminal
proxy
data
mag
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Application number
PCT/KR2009/004942
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French (fr)
Korean (ko)
Inventor
고석주
김지인
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경북대학교 산학협력단
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATIONS NETWORKS
    • H04W40/00Communication routing or communication path finding
    • H04W40/02Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/20Communication route or path selection, e.g. power-based or shortest path routing based on geographic position or location

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

Proxy Mobile Internet Protocol version 6 network within a mobile terminal communication path optimization system and method

The invention Proxy Mobile Internet Protocol version 6 network within a mobile terminal communication path optimization system, and relates to a method, in particular a mobile terminal, the proxy mobile Internet Protocol version 6 network that can perform data communication via an optimized data communication path, between within the mobile terminal to a communication route optimization system and method.

Via PMIPv6 (Proxy Mobile Internet Protocol version 6) was developed to support the network based mobility in the next-generation Internet protocol, IPv6 (Internet Protocol version 6) environment is made as to exchange data between the mobile terminal.

Exchange of data between such a mobile terminal is moving anchor region located within the network: is via the (LMA is called Local Mobility Anchor, hereinafter, 'LMA'.).

Transmitting side mobile terminal transmits the data to be transmitted by the transmitting-side MAG governing the transmission side mobile station above, the transmission side MAG is sent to the local mobile anchor, which belongs to the transmitting side mobile terminal the received data LMA . The LMA is sent to the LMA belonging to a recipient mobile terminal to be transmitted to the data received, LMA, and the receiving mobile node transmits the received data to the reception side MAG. By Then, the transmitting data is passed to the receiving MAG recipient mobile terminal, the data exchange takes place between the mobile terminal.

However, such data replacement scheme when the number of the mobile terminal to exchange data becomes large in the proxy mobile IPv6 network, the data to be transmitted and received is therefore both go through a LMA governing the proxy mobile IPv6 network, the number of the LMA the problem is the load will occur.

To solve the problems of the prior art, the present invention by forming a data transmission path of the tunnel between MAG (Mobile Access Gateway) which control the mobile terminal, rather than through a local mobile anchor the LMA, for transferring data to provide a proxy mobile Internet protocol version 6 network within a mobile terminal communication path optimization system.

In addition, the present invention is to request the proxy binding query to the mobile terminal by forming a data transmission path of the tunnel between MAG which control the mobile station, rather than through a local mobile anchor the LMA (Local Mobility Anchor), for transferring data to provide a proxy mobile Internet protocol version 6 network within a mobile terminal communication route optimization method.

Proxy Mobile Internet Protocol version 6 network within a mobile terminal communication path optimization system for optimizing a communication path in which data is transmitted and received between the transmitting side mobile terminal and a receiving side mobile terminal according to one aspect of the present invention for solving the above problems is the (Local Mobility Anchor) LMA retrieving a proxy care-of address that is matched to the received home address of the recipient mobile terminal and; Determine the location information of the recipient mobile terminal located in the found proxy care-of address, and, (Mobile Access Gateway) at least two MAG which control data of the transmission side mobile terminal and a recipient mobile terminal; including, but , the MAG to which the sender mobile terminal location to initialize the data transmission path to the MAG by the mobile terminal the receiving position to form a tunnel between the MAG.

Preferably, the recipient mobile terminal's home address to the proxy binding query requesting the proxy binding query to the LMA including the requested module; The recipient mobile terminal is located with MAG transmitting side mobile terminal is located data transmission path to initialize the data transmission path for data communication between the MAG and the initialization of the module; The tunnel that forms the basis of the initializing data transfer path forming tunnel module; It may include MAG, including; message transmission module for transmitting a response message for the data transmission path initialization.

Preferably, the receiving side proxy care retrieving a proxy care-of address of the mobile node address of the search module that matches the request from the Proxy Binding MAG and query; Including the found proxy care-of address, the message transmission module for transmitting a response message to the proxy binding query request; may include a LMA comprising a.

In particular it may include a LMA further comprising a BCE (Binding Cache Entry) for storing the address of the proxy K that matches the home address of the recipient mobile terminal.

The transmitting side mobile terminal and a receiving optimize the communication path in which data is transmitted and received between side mobile terminal proxy mobile Internet Protocol version 6 network within a mobile terminal communication route optimization method according to a further feature of the present invention for solving the above problems is request, the method comprising the MAG to the transmitting side mobile terminal location request to a proxy binding query containing the home address of the recipient mobile terminal to the LMA; And a search step of searching a proxy care-of address of the recipient mobile terminal that the LMA is matched with the Proxy Binding Request query; Formed to initialize the MAG and the data transmission path to the location transmitting side mobile terminal corresponding to the recipient mobile terminal is located proxy care-of address retrieved MAG is the step of forming a tunnel; And sending and receiving step for transmitting and receiving data through the tunnel, a mobile station the transmitting side mobile terminal and the receiving side is formed above; and a.

Preferably it may include a search step of transmitting a response message to the transmission side MAG containing the proxy care-of address after the search, the retrieved proxy care-of address according to the proxy binding query to which the LMA request.

Preferably, the initialization process of the MAG is that the transmitting mobile terminal location to initialize the data transmission path between the MAG that the movement of the receiving terminal and the location; Formed during the formation of the MAG is that the recipient mobile terminal position the initialization of the data transmission path to a double tunnel with; After the MAG which the recipient mobile terminal position forming the tunnel, response and transmitting a response message according to the initialization data transfer path; may include a forming step comprising a.

In particular, the first process in which the transmitting side mobile terminal transmits data to the MAG to which the sender mobile terminal and the location; A second step of the MAG through the tunnel in which the transmitting side mobile terminal transmits the data to the location formed MAG which the recipient mobile terminal and the location; The MAG in which the recipient mobile terminal location to the recipient mobile terminal 3 and transmitting the data; may include a transmission and reception step including.

As described above, the present invention LMA is to search for the care-of address of the access network to the receiving mobile terminal is moving, the receiving side mobile terminal is located data transmission path initialization between the MAG that corresponding to the care-of address by forming a tunnel through, there is an effect that it is possible to establish a communication route optimization between a sender mobile terminal and the recipient mobile terminal.

In this manner, according to the present invention it is possible to establish a communication route optimization between a mobile terminal, there is an effect that can increase the efficiency of data communication between the mobile terminal.

Furthermore, the present invention has an effect that can do a lot of data even if the number of mobile terminals increases to be transmitted and received in the proxy mobile Internet Protocol version 6 network, the passing through the LMA, prevent a large load on the LMA .

In addition, the present invention has the effect that the data is to minimize the transmission delay caused by the large amount of data because it is not focused on the LMA to be transmitted and received.

Accordingly, there is an effect that can efficiently use network resources in proxy MIP environment.

1 is a schematic diagram of a proxy mobile Internet Protocol version 6 network within a mobile terminal communication path optimization system according to an embodiment of the present invention.

2 is a block diagram of an MAG in the proxy mobile Internet Protocol version 6 network within a mobile terminal communication path optimization system.

Figure 3 is a block diagram of a LMA of the proxy mobile Internet Protocol version 6 network within a mobile terminal communication path optimization system.

Figure 4 is a flow diagram of a proxy mobile Internet Protocol version 6 network within a mobile terminal communication route optimization method according to an embodiment of the present invention.

5 is a view showing a Proxy Binding query request message, the configuration of the flow chart illustrated in FIG.

Figure 6 is a view showing a response message for the Proxy Binding query request of the flowchart of FIG.

*** Description of the Related Art ***

110: a sender mobile terminal 120T: transmitting-side MAG

130: LMA 120R: reception side MAG

140: The receiving side mobile terminal

It will be described below in detail to in the art by the invention to the preferred embodiment with reference to the accompanying drawings to which the invention pertains can easily practice the self-skilled. However, the invention is not, and can be implemented in many different forms, limited to the embodiments set forth herein.

Hereinafter will be described a Proxy Mobile Internet Protocol version 6 network within a mobile terminal communication path optimization system according to an embodiment of the present invention will be described with reference to Figure 1 in detail.

] As described above, the transmitting side mobile terminal and the recipient mobile proxy mobile internet protocol version of the present invention to optimize the communication path between the terminal 6, the network within a mobile terminal communication path optimization system 100 shown in Figure 1 is MAG (120T, 120R: including the Local Mobility Anchor): Mobile Access Gateway) and LMA (130. The present proxy mobile IPv6 network, the mobile terminal communication path optimization system 100 in the invention is a mobile terminal (110, 140) between the data communication upon, that, without going through a LMA (130), the transmitting mobile terminal 110 is located the tunnel between the MAG (120T) and at all times the recipient mobile terminal (140) MAG (120R) of the position is formed, is made of data communication.

Hereinafter reference to FIG. 2, to take a closer look with respect to the MAG (120) of the present invention, Proxy Mobile Internet Protocol version 6 network within a mobile terminal communication path optimization system 100.

The, the MAG (120T, 120R) is a Proxy Binding query request module 122 and the data transmission path initialization module 124 and tunnel formation module 126 and a message transmission module in the present invention 128, as shown in Figure 2, It includes. The MAG (120T, 120R) has a for convenience of description hereinafter, it performs a different function depending on whether belonging where the transmitting mobile terminal 110 and the receiving side mobile terminal 140, the MAG (120T, 120R) It will be described, separated by a transmission side MAG (120T) and the receiving MAG (120R).

Requests the proxy binding query to the LMA (130) including: (Home Address HoA) Proxy Binding query request module 122 is the home address of the recipient mobile terminal (140).

The home address refers to the IP (Internet Protocol) address of the mobile node that is used to keep the same even be a different location connected to a network for data transmission and reception of the mobile terminal.

Data transfer path initialization module 124 initializes the data path so that the data communication performed between the receiving MAG (120R) and the transmitting-side MAG (120T).

Tunnel forming module 126 forms a tunnel to the initialized data transmission path.

Message transmission module 128 transmits the response message to initialize the data transmission path.

With reference to Figure 3, to take a closer look with respect to the LMA (130) of the present invention, Proxy Mobile Internet Protocol version 6 network within a mobile terminal communication path optimization system 100.

As shown in Figure 3, LMA (130) according to the present invention includes a proxy care-of address, the search module 132 and the message transmission module 134.

Proxy care-of address search module 132 is the recipient mobile terminal (140 matching Proxy Binding query and containing the home address of the receiving mobile terminal 140 from the MAG (120T) to a position sender mobile terminal 110 the search for the Care-of address):) proxy Care-of address (proxy CoA's. The proxy care-of address is the recipient mobile used to convey the packet data to the home agent (not shown, Home Agent) is the transmission side mobile terminal the packet data intercepts moving a receiving-side move occurs at the terminal such as a router says the temporary address of the UE.

The message sending module 134 in the proxy care-of address search module 132, a Proxy Binding query request received from including a proxy care-of address, the transmitting MAG (120T) of the receiving mobile terminal 140, a search It transmits a response message to respond.

Such LMA (130) stores the tabulated BCE (Binding Cache Entry) a proxy care-of address that matches the home address of the receiving mobile terminal 140.

Hereinafter, a detailed description of a Proxy Mobile Internet Protocol version 6 network within a mobile terminal communication route optimization method according to one embodiment of the present invention will be described with reference to FIG.

4, the present inventors Proxy Mobile Internet Protocol version 6 network within a mobile communication route optimization between the mobile station the transmitting MAG (120T) LMA (130) which control the data transfer on the transmission side mobile terminal (110) the request to the proxy binding query (S101).

Hereinafter, Referring to Fig. 5 Referring to the request message to the proxy binding query, at least one bit of the transmission side MAG (120T) a bit left blank for the use of other functions of the Proxy Binding query message (Reserved Bit) selection, and sets a 'Q' to the selected bit to the message is identified as proxy binding query message to be transmitted. Further, the transmitting MAG (120T) is that the proxy binding the home address of the Proxy Binding query message to the recipient mobile terminal 140 home address to allocate 32 bits to be stored, the receiving mobile terminal 140 in the It should be sent to the LMA (130) via a query message.

The LMA (130) is stored and retrieved from a BCE the proxy care-of address that matches the home address of the receiving mobile terminal 140 to the interior of the LMA (130) (S102). The BCE refers to a table that stores a proxy care-of address that matches the unique home address of each mobile terminal.

After the LMA (130) is searched for a proxy care-of address that matches the home address of the receiving mobile terminal 140 from the BCE, transmitting a response message to the proxy binding query request to the transmission side MAG (120T) and (S103).

Hereinafter, with reference to Figure 6 and looking for a response message for the requested proxy binding query request, a response message to the proxy binding query request is to be previously transmitted to the LMA (130) comprises a proxy care-of address search do.

At this time, the LMA (130) if from the BCE failed the proxy care-of address detection, transmits a response message including a search failure in MAG (120T), the transmitting side, received the receiving mobile terminal 140 and that the transfer of the home address is not valid.

When the transmitting MAG (120T) receives a response message to the proxy binding query request, through a proxy care-of address contained in the received response message to determine the location information of the recipient mobile terminal (140). Thereafter, the transmitting MAG (120T) initializes the receiving MAG (120R) and a data transmission path which control the receiving mobile terminal (140) (S104).

The receiving side and MAG (120R) is formed in the by using the initialization data transmission path the transmitting MAG (120T) and data to be transferred bi-directional tunnel (S105).

This tunnel formation is the BCE is updated periodically, 1 between the transmitting and the receiving MAG MAG: such that the communication of the first method performed.

After the receiving MAG (120R) is a tunnel, and transmits it to the transmission side MAG (120T) wherein a response message to the data transmission path is received from the transmitting initialization MAG (120T) (S106).

In this way, it performs a data transfer via the transmission side MAG (120T) and the receiving MAG, each mobile station according to the data transmission path is formed between the tunnel (120R) (110. 140) are formed in the tunnel (S107) . This data transfer is the transmission side mobile terminal 110 and transmitted to the MAG (120T), the transmitting-side data to be transmitted, the transmitting MAG (120T) is received, the via formed in the tunnel prior to the data reception side MAG ( transferred to 120R), and transmits the receiving MAG (120R), the data received by the receiving side mobile station (140).

Such, the invention LMA is to search for the care-of address of the new access network to the receiving mobile terminal is moving, the recipient mobile terminal is located initializing data transfer path between the MAG that corresponding to the care-of address described above by forming a tunnel through, there is an effect that it is possible to establish a communication route optimization between a sender mobile terminal and the recipient mobile terminal. The present invention is by building up a communication route optimization between a mobile terminal, it is possible to increase the efficiency of the data communication between the mobile terminal.

Furthermore, the present invention can do a lot of data even if the number of mobile terminals increases to be transmitted and received in the proxy mobile Internet Protocol version 6 network, the passing through the LMA, prevent a large load on the LMA. In addition, the present invention data to be transmitted and received is possible to minimize the transmission delay caused by the large amount of data because it is not focused on the LMA. Accordingly, the efficient use of network resources by the proxy MIP environment.

Over invention Proxy Mobile Internet Protocol version 6 network it has been described to my mobile terminal communication path optimization system and method according to the. Technical configuration of the present invention, it will be appreciated that without the person skilled in the art changing the technical spirit or essential features of the invention may be embodied in other specific forms.

Thus the embodiments described above are exemplary in all respects, it is understood as not to be limiting, and becomes the scope of the invention is indicated by the claims below rather than the foregoing description, the meaning of the claims and and range and all such modifications as are derived from the equivalent concept be construed as being included in the scope of the invention.

According to the invention, without passing through the LMA to be taken for data transmission and reception, by forming a bidirectional tunnel between the mobile terminal MAG and perform data communication directly between the MAG of the mobile station through the formed tunnel, the number of mobile terminals increases Accordingly, when the amount of data, so far as going through the LMA is possible to prevent a large load on the LMA, it is possible to minimize the transmission delay of the data accordingly. In particular, in the field of wireless data communication, as the transmission of large amounts of data without the delay of data is large industrial applicability.

Claims (8)

  1. In the proxy mobile Internet Protocol version 6 network within a mobile terminal communication path optimization system for optimizing a communication path in which data is transmitted and received between the transmitting side mobile terminal and the recipient mobile terminal,
    LMA (Local Mobility Anchor) retrieving a proxy care-of address that matches the home address of the recipient mobile terminal and;
    Determine the location information of the recipient mobile terminal located in the found proxy care-of address, and, (Mobile Access Gateway) at least two MAG which control data of the transmission side mobile terminal and a recipient mobile terminal; including, but ,
    Proxy Mobile Internet Protocol version 6 network within a mobile terminal communication path optimization, characterized in that the MAG to which the sender mobile terminal position to form a tunnel between the MAG to initialize the data transmission path to the MAG by the movement of the receiving-side terminal position system.
  2. According to claim 1,
    The MAG is
    The recipient mobile terminal's home address to the proxy binding query requesting the proxy binding query to the LMA including the requested module;
    The recipient mobile terminal is located with MAG transmitting side mobile terminal is located data transmission path to initialize the data transmission path for data communication between the MAG and the initialization of the module;
    The tunnel that forms the basis of the initializing data transfer path forming tunnel module;
    Proxy Mobile Internet Protocol version 6 network within a mobile terminal communication path optimization system comprising: a; message transmission module for transmitting a response message for the data transmission path initialization.
  3. According to claim 1,
    The LMA is
    The proxy binding request from the MAG to query and retrieve the proxy care-of address of the recipient mobile terminal that matches a proxy care-of address search module;
    Proxy Mobile Internet Protocol version 6 network within a mobile terminal communication path optimization system comprising: a; including the found proxy care-of address, the message transmission module for transmitting a response message to the proxy binding query request.
  4. 4. The method of claim 3,
    The LMA is
    Proxy Mobile Internet Protocol version 6 network within a mobile terminal communication path optimization system further comprising a BCE (Binding Cache Entry) for storing the address of the proxy K that matches the home address of the recipient mobile terminal.
  5. In the proxy mobile Internet Protocol version 6 network within a mobile terminal communication route optimization method of optimizing a communication path in which data is transmitted and received between the transmitting side mobile terminal and the recipient mobile terminal,
    Request, the method comprising the MAG to the transmitting side mobile terminal location request to a Proxy Binding query containing the home address of the recipient mobile terminal to the LMA;
    And a search step of searching a proxy care-of address of the recipient mobile terminal that the LMA is matched with the Proxy Binding Request query;
    Forming step of forming a tunnel to the MAG initialization and data transfer path to the location transmitting side mobile terminal corresponding to the recipient mobile terminal is located proxy care-of address to which the MAG retrieved and;
    Proxy Mobile Internet Protocol version 6 network within a mobile terminal communication route optimization method, comprising: a; transmission and reception method comprising: transmitting and receiving data through the tunnel is the sender mobile terminal and the recipient mobile terminal provided above.
  6. 6. The method of claim 5,
    The search step
    The proxy care-of address search, then, retrieved proxy care-of address, a proxy mobile Internet Protocol version 6 network, the mobile within, characterized in that for transmitting the response message to the transmission side MAG containing accordance with the Proxy Binding query the LMA the request terminal communication route optimization method.
  7. 6. The method of claim 5,
    The forming step
    Initialization process for the MAG to which the sender mobile terminal location to initialize the data transmission path between the MAG that the movement of the receiving terminal and the location;
    Formed during the formation of the MAG is that the recipient mobile terminal position the initialization of the data transmission path to a double tunnel with;
    After the MAG which the recipient mobile terminal position forming the tunnel, the data transmission path response and transmitting a response message in accordance with the initialization; Proxy Mobile Internet Protocol version comprising the six networks within the mobile terminal communication path how to optimize.
  8. 6. The method of claim 5,
    The transmitting and receiving steps are
    A first step in which the transmitting side mobile terminal transmits data to the MAG to which the sender mobile terminal and the location;
    A second step of the MAG through the tunnel in which the transmitting side mobile terminal transmits the data to the location formed MAG which the recipient mobile terminal and the location;
    Proxy Mobile Internet Protocol version 6 network within a mobile terminal communication route optimization method, comprising the; third process of the MAG is that the receiving side mobile terminal transmits the position data to the recipient mobile terminal.
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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