Mobile IP communication system using dual stack transition mechanism and method thereof
First Claim
Patent Images
1. A method for assigning a mobile Internet protocol (IP) in an access node of a mobile communication system having the mobile IP, the method comprising the steps of:
- assigning a first mobile IP (Mobile IPv6) address available in the access node upon receiving a request for assignment of the first mobile IP (Mobile IPv6) address from a mobile node;
assigning a second mobile IP (Mobile IPv4) address upon receiving a request for assignment of the second mobile IP address (Mobile IPv4) from a mobile node which was assigned the first mobile IP address; and
assigning a fifth mobile IP (Mobile IPv6) address when a mobile node that was assigned a third mobile IP (Mobile IPv6) address and a fourth mobile IP (Mobile IPv4) address has moved from another access node to the access node.
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Abstract
A system and method for assigning and managing a mobile IP in an access node for communicating with a mobile node supporting IP version 6 (IPv6) technology, assigning an IPv6 address to the mobile node, and using a dual stack transition mechanism capable of providing an IP version 4 (IPv4) address upon receiving an IPv4 address request from the mobile node, and a border router for interfacing between an IPv4 native network and an IPv6 native network.
59 Citations
30 Claims
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1. A method for assigning a mobile Internet protocol (IP) in an access node of a mobile communication system having the mobile IP, the method comprising the steps of:
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assigning a first mobile IP (Mobile IPv6) address available in the access node upon receiving a request for assignment of the first mobile IP (Mobile IPv6) address from a mobile node;
assigning a second mobile IP (Mobile IPv4) address upon receiving a request for assignment of the second mobile IP address (Mobile IPv4) from a mobile node which was assigned the first mobile IP address; and
assigning a fifth mobile IP (Mobile IPv6) address when a mobile node that was assigned a third mobile IP (Mobile IPv6) address and a fourth mobile IP (Mobile IPv4) address has moved from another access node to the access node. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for assigning a mobile Internet protocol (IP) in an access node of a mobile communication system having the mobile IP, the apparatus comprising:
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means for assigning a first mobile IP (Mobile IPv6) address available in the access node upon receiving a request for assignment of the first mobile IP (Mobile IPv6) address from a mobile node;
means for assigning a second mobile IP (Mobile IPv4) address upon receiving a request for assignment of the second mobile IP address (Mobile IPv4) from a mobile node which was assigned the first mobile IP address; and
means for assigning a fifth mobile IP (Mobile IPv6) address when a mobile node that was assigned a third mobile IP (Mobile IPv6) address and a fourth mobile IP (Mobile IPv4) address has moved from another access node to the access node. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for transmitting data between a first mobile communication network and a second mobile communication network in a border router of a mobile communication system utilizing a mobile Internet protocol (IP), the method comprising the steps of:
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receiving a first mobile IP (Mobile IPv6) address and a second mobile IP (Mobile IPv4) address from a mobile node;
storing the received first mobile IP (Mobile IPv6) address and second mobile IP (Mobile IPv4) address;
updating a third mobile IP being one of (Mobile IPv6) and (Mobile IPv4) address included in a location update message when the location update message is received from the mobile node; and
transmitting a packet using the stored mobile IP addresses when packet data transmitted from a mobile node belonging to the first mobile communication network to the second mobile communication network is received. - View Dependent Claims (16, 17, 18)
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19. An apparatus for transmitting data between a first mobile communication network and a second mobile communication network in a border router of a mobile communication system utilizing a mobile Internet protocol (IP), the apparatus comprising:
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means for receiving a first mobile IP (Mobile IPv6) address and a second mobile IP (Mobile IPv4) address from a mobile node;
means for storing the received first mobile IP (Mobile IPv6) address and second mobile IP (Mobile IPv4) address;
means for updating a third mobile IP being one of (Mobile IPv6) and (Mobile IPv4) address included in a location update message when the location update message is received from the mobile node; and
means for transmitting a packet using the stored mobile IP addresses when packet data transmitted from a mobile node belonging to the first mobile communication network to the second mobile communication network is received. - View Dependent Claims (20, 21, 22)
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23. A method for transmitting/receiving data between a first mobile communication network and a second mobile communication network in a mobile node of a mobile communication system utilizing a mobile Internet protocol (IP), the method comprising the steps of:
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receiving a first mobile 1P (Mobile IPv6) address assigned from the first mobile communication network;
receiving a second mobile IP (Mobile IPv4) address assigned by sending a request for the second mobile IP (Mobile IPv4) address to an access node when communication with the second mobile communication network is required;
transmitting the assigned first mobile IP (Mobile IPv6) address and second mobile IP (Mobile IPv4) address to a border router; and
receiving and assigning a third mobile IP (Mobile IPv6) address, and transmitting the assigned third mobile IP address to the border router when the mobile node moves to another access node in the first mobile communication network. - View Dependent Claims (24, 25, 26)
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27. An apparatus for transmitting/receiving data between a first mobile communication network and a second mobile communication network in a mobile node of a mobile communication system utilizing a mobile Internet protocol (IP), the apparatus comprising:
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means for receiving a first mobile IP (Mobile IPv6) address assigned from the first mobile communication network;
means for receiving a second mobile IP (Mobile IPv4) address assigned by sending a request for the second mobile IP (Mobile IPv4) address to an access node when communication with the second mobile communication network is required;
means for transmitting the assigned first mobile IP (Mobile IPv6) address and second mobile IP (Mobile IPv4) address to a border router; and
means for receiving and assigning a third mobile IP (Mobile IPv6) address and transmitting the assigned third mobile IP address to the border router, when the mobile node moves to another access node in the first mobile communication network. - View Dependent Claims (28, 29, 30)
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Specification