摘要:
A method of transmitting a neighbor discovery protocol (NDP) message in an IEEE 802.16/Wibro network is provided. The method of transmitting an NDP message in a sub-network formed with access routers and a plurality of base stations connected to the access router through separate interfaces includes: a first base station transmitting a first NDP message received from a first terminal, to the access router; and the access router transmitting the first NDP message to the remaining base stations excluding the first base station. According to the method, a method of processing an NDP message in an environment having multiple base stations which cannot be considered under a conventional environment using a multicast connection ID (CID) can be improved, and problems that can occur when a IPv6 is introduced in an IEEE 802.16/Wibro network can be solved.
摘要:
Provided is a method of performing a handover in a mobile communication environment. The method of performing the handover using a mobile node (MN) that moves from a first access router (AR) network to a second AR network in a mobile Internet protocol (IP) network includes: (a) the MN providing a new care of address (CoA) allocation method to the second AR, the second AR previously obtaining a CoA according to the CoA allocation method; (b) after the MN completely performing the handover to a subnet of the second AR in a layer 2 of the MN, clearly informing the first AR that the MN moves; and (c) allocating a new CoA (NCoA) obtained by the second AR to the MN, the first AR starting to tunnel packets destined for a previous CoA (PCoA) to the NCoA, and normally performing a binding update process for a mobile IP. The method replaces a conventional fast handover method, and simplifies complicated message exchanges.
摘要:
A method of performing a handover is provided. The method of performing the handover includes: a mobile terminal transmitting an access stop message to a first Access Point (AP) when the mobile terminal moves from a first AP area to a second AP area; the first AP transmitting a handover start message to a first Mobility Access Gateway (MAG) corresponding to the first AP in response to the access stop message; the first MAG transmitting the handover start message to a Local Mobile Anchor (LMA); and the LMA performing a buffering of a data packet to be transmitted to the mobile terminal.
摘要:
There is provided a movement detection method of a mobile node in a DSMIP6 environment. The movement detection method includes performing neighbor unreachability detection in a network to which a mobile node moves, confirming network movement detection and simultaneously performing IPv4 address allocation when the neighbor unreachability detection fails, performing router discovery at the same time as the IPv4 address allocation, recognizing the movement detection into the IPv4 network when the IPv4 address allocation succeeds, and recognizing the movement detection into the IPv6 network when the router discovery and the IPv6 router discovery succeed. Therefore, the movement detection method can be useful to continuously perform operations as defined in a DSMIP6 specification so as to confirm whether the network to which the mobile node moves is an IPv6 network or an IPv4 network and detect movement to the confirmed network, and to perform a binding update in time.
摘要:
An automatic tunnel configuration method using a router advertisement message is provided, including: periodically receiving a router advertisement message containing a tunnel end-point address option from an access router of an internet protocol version 6 (IPv6) network when a mobile node moves from a home network to other IPv6 networks; automatically configuring a tunnel using an address allocated from the access router of the IPv6 network to which the mobile node connects, and the tunnel end-point address option included in the router advertisement message when the network to which the mobile node moves to connect is an internet protocol version 4 (IPv4) network; and communicating with a correspondent node via the configured tunnel using a mobile internet protocol (MIP6).
摘要:
A method of performing a handover is provided. The method of performing the handover includes: a mobile terminal transmitting an access stop message to a first Access Point (AP) when the mobile terminal moves from a first AP area to a second AP area; the first AP transmitting a handover start message to a first Mobility Access Gateway (MAG) corresponding to the first AP in response to the access stop message; the first MAG transmitting the handover start message to a Local Mobile Anchor (LMA); and the LMA performing a buffering of a data packet to be transmitted to the mobile terminal.
摘要:
A system for managing mobile routers connected to a PMIP6 (proxy mobile interne protocol version 6) domain is provided with a plurality of MAGs (mobility access gateways) to which the mobile routers are to be connected, an LMA (local mobility anchor), connected to the plurality of MAGs, for managing location information of the mobile routers and packet forwarding information of the mobile routers, and a profile server in which profile information of the mobile routers is registered. Further, the plurality of MAGs and the LMA set up forwarding information of a home prefix of a mobile router that is connected to the PMIP6 domain and a mobile network prefix managed by the connected mobile router, based on the profile information of the mobile routers registered in the profile server.
摘要:
A system for managing mobile routers connected to a PMIP6 (proxy mobile internet protocol version 6) domain is provided with a plurality of MAGs (mobility access gateways) to which the mobile routers are to be connected, an LMA (local mobility anchor), connected to the plurality of MAGs, for managing location information of the mobile routers and packet forwarding information of the mobile routers, and a profile server in which profile information of the mobile routers is registered. Further, the plurality of MAGs and the LMA set up forwarding information of a home prefix of a mobile router that is connected to the PMIP6 domain and a mobile network prefix managed by the connected mobile router, based on the profile information of the mobile routers registered in the profile server.
摘要:
An automatic tunnel configuration method using a router advertisement message is provided, including: periodically receiving a router advertisement message containing a tunnel end-point address option from an access router of an internet protocol version 6 (IPv6) network when a mobile node moves from a home network to other IPv6 networks; automatically configuring a tunnel using an address allocated from the access router of the IPv6 network to which the mobile node connects, and the tunnel end-point address option included in the router advertisement message when the network to which the mobile node moves to connect is an internet protocol version 4 (IPv4) network; and communicating with a correspondent node via the configured tunnel using a mobile internet protocol (MIP6).
摘要:
There is provided a movement detection method of a mobile node in a DSMIP6 environment. The movement detection method includes performing neighbor unreachability detection in a network to which a mobile node moves, confirming network movement detection and simultaneously performing IPv4 address allocation when the neighbor unreachability detection fails, performing router discovery at the same time as the IPv4 address allocation, recognizing the movement detection into the IPv4 network when the IPv4 address allocation succeeds, and recognizing the movement detection into the IPv6 network when the router discovery and the IPv6 router discovery succeed. Therefore, the movement detection method can be useful to continuously perform operations as defined in a DSMIP6 specification so as to confirm whether the network to which the mobile node moves is an IPv6 network or an IPv4 network and detect movement to the confirmed network, and to perform a binding update in time.