摘要:
Disclosed is a technique in which, when respective addresses of multiple interfaces of a mobile node are registered with a mobile management device, a delay in transmission of packets destined to addresses other than the source address of a bulk registration message is prevented. According to the technique, an MN 100 uses each of addresses associated with IFs 1000 and 1001 as a source address, respectively, to send a HA 101 an individual registration BU message S30, S31 for registering the source address individually. When receiving the individual registration BU message S30, S31, the HA 101 registers the source address as having been verified through ingress filtering of a foreign network domain 11, and sends a BA message S32, S33 to authorize bulk registration for updating the respective addresses in bulk.
摘要:
A technology is disclosed for preventing packet and transferring packets to a switched interface with minimal delay, when a mobile node switches a using interface. According to the technology, when a MN 200 is communicating with a MAG (WLAN) 232, a PBU message 301 has already been transmitted from the MAG (WLAN) 232 to the LMA 220, and binding related to a WLAN connection 242 is already registered in the LMA 220. When an interface switching event 300 is generated, the MN 200 transmits to the MAG (WLAN) 232 via the WLAN connection 242, a binding in-advance registration message 302 for registering a binding in advance. When the MAG (WLAN) 232 detects disconnection 310 of the WLAN connection 242, the MAG (WLAN) 232 transmits a registration delete/trigger message 312a to the LMA 220, registers and triggers in the LMA 220 the in-advance registration binding registered in the MAG (WLAN) 232, and deletes the PBU message 301.
摘要:
Disclosed is a technique to eliminate wasted tunneling encapsulation processing during redirection of a packet. According to the technique, when a packet of a first connection passing through a local mobility anchor (“LMA”) 111 and a mobile access gateway (“MAG”) 121 using a first prefix of an interface 131 of a mobile node (“MN”) 130 is redirected to a second connection passing through a LMA 112 and a MAG 122 using a second prefix of an interface 132 of the MN 130, a redirection tunnel T1 is established between the LMA 111 and the LMA 112. When the MAG 122 knows the first prefix, the LMA 112 encapsulates a packet addressed to the first prefix that is redirected via the tunnel T to be addressed to the MAG 122 for transferring.
摘要:
A path switching system is provided, in which when UE has been offloaded from a first PDN-GW to a second PDN-GW, if there is an additional connection of the UE to the first PDN-GW, processing related to the additional connection can be performed on the UE side. The system includes: a control unit for sending a mobile terminal a message including information indicative of having switched relay devices, which relay a packet between the mobile terminal and a communication device, from a first relay device to a second relay device; and the mobile terminal for determining whether there is an added path other than part of a path from the mobile device before movement to the communication device and capable of being managed by the control unit, established between the mobile terminal and the first relay device, and when there is the added path, performing processing on the added path.
摘要:
A path switching system is provided, in which when UE has been offloaded from a first PDN-GW to a second PDN-GW, if there is an additional connection of the UE to the first PDN-GW, processing related to the additional connection can be performed on the UE side. The system includes: a control unit for sending a mobile terminal a message including information indicative of having switched relay devices, which relay a packet between the mobile terminal and a communication device, from a first relay device to a second relay device; and the mobile terminal for determining whether there is an added path other than part of a path from the mobile device before movement to the communication device and capable of being managed by the control unit, established between the mobile terminal and the first relay device, and when there is the added path, performing processing on the added path.
摘要:
The invention provides a technique to reduce a packet size of signaling to request vertical handoff in case a mobile node has static vertical handoff rules. According to this technique, MN 500, which has an If1, a WiMAX If2 and a WLAN If3, each being communicable with a PMIPv6 domain 511, roams within the PMIPv6 domain 511, and when the WiMAX If2 or the WLAN If3 is selectively and newly connected to WiMAX or WLAN, a prefix P2 to uniquely transfer the prefix P1 relating to If1 without transferring the prefix P1 relating to If1 to the WiMAX-If2 and the WLAN-If3, and to uniquely transfer from the WiMAX If2 previously connected or the WLAN If3 previously connected to the WiMAX If2 or the WLAN If3 newly connected to the LMA/HA 512 so that ID's of If2 and If3 are not contained in a trigger message of the vertical handoff as transmitted by MN 500.
摘要:
Disclosed is a technique to, when a mobile node including a plurality of interfaces roams in a home domain, reduce signaling to create a client-based binding cache in a home agent and manages the same. When a MN (10) refers to a home MIPv6 prefix (P1) via an interface (If1) to find attachment to a home MIPv6 domain, the MN (10) predicts a high probability that another WLAN interface (If2) of the MN (10) connects with the same home MIPv6 domain (100) and an LMA/HA (40) and transmits a CMIPv6 cache creation•maintenance/management request message (308) to the LMA/HA (40). Receiving the request message (308), the LMA/HA (40) creates a CMIPv6 cache relating to the PMIPv6 cache of the WLAN interface (If2) and maintains/manages the CMIPv6 cache without being refreshed by the MN (10).
摘要:
Disclosed is a technique to reduce the number of messages to register mobile node position information with a home agent when a mobile node roams into a foreign network domain having a roaming relationship with a home network domain. Upon reception of network information 40, when the network information 40 contains a foreign prefix, a MN 11 creates a care-of address (CoA) using the foreign prefix (Step S44). The MN 11 further checks whether the network information 40 contains a home prefix (Step S45). When no home prefix is included in the prefix 203, a BU message is transmitted to a home MAP 1000 (Step S46). When a home prefix exists in the prefix 203, the BU message is not transmitted to the home MAP 1000 (Step S47).
摘要:
A technique of acquiring a binding ID when a mobile node performs handover is disclosed. According to the technique, when an MN 10 is initially booted on a Non-3GPP network 30, a AAA server 50 generates and stores the binding ID, transmits it to a proxy node 31, and transmits, to the MN, allocation information indicating that the binding ID is allocated to the proxy node. When performing handover to a 3GPP network 20, the MN requests an HA 32 for the binding ID. Then, the HA requests the AAA server for the binding ID, and the AAA server transmits the binding ID to the HA. The HA receives the binding ID and transmits it to the MN.
摘要:
A technique is disclosed to decrease unnecessary routing during communication between a mobile node and a correspondent node in case a home agent of the mobile node is a mobile home agent. According to this technique, HA 112 positioned in a home network 102 and HA 114 of MN 130 are included. In a communication system, where HA 114 is a mobile home agent, and a mobile network 104 of HA 114 is hierarchized under the home network 102, HA 114, which is a home agent, discovers HA 112 positioned in the home network 102 when it is detected that it is away from the home network 102 and delegates binding cache entry of MN 130 under its own management to HA 112 so that HA 112 acts as a home agent for MN 130.