US20020055971A1 - Method and system for a low-overhead mobility management protocol in the internet protocol layer - Google Patents

Method and system for a low-overhead mobility management protocol in the internet protocol layer Download PDF

Info

Publication number
US20020055971A1
US20020055971A1 US10/026,060 US2606001A US2002055971A1 US 20020055971 A1 US20020055971 A1 US 20020055971A1 US 2606001 A US2606001 A US 2606001A US 2002055971 A1 US2002055971 A1 US 2002055971A1
Authority
US
United States
Prior art keywords
host
nat
network
home
address
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/026,060
Other languages
English (en)
Inventor
Sharif Shahrier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
InterDigital Technology Corp
Original Assignee
InterDigital Technology Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US09/997,922 external-priority patent/US20020154613A1/en
Application filed by InterDigital Technology Corp filed Critical InterDigital Technology Corp
Priority to US10/026,060 priority Critical patent/US20020055971A1/en
Assigned to INTERDIGITAL TECHNOLOGY CORPORATION reassignment INTERDIGITAL TECHNOLOGY CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SHAHRIER, SHARIF M.
Priority to CNB028052730A priority patent/CN100505739C/zh
Priority to KR1020037010956A priority patent/KR100604170B1/ko
Priority to KR1020077013445A priority patent/KR100787085B1/ko
Priority to KR1020077019555A priority patent/KR100914697B1/ko
Priority to KR1020087002942A priority patent/KR20080025755A/ko
Priority to EP20060009962 priority patent/EP1701507B1/en
Priority to MXPA03007522A priority patent/MXPA03007522A/es
Priority to KR1020037013811A priority patent/KR100789797B1/ko
Priority to KR1020087016492A priority patent/KR100935121B1/ko
Priority to AU2002244005A priority patent/AU2002244005A1/en
Priority to AT02709525T priority patent/ATE327627T1/de
Priority to CA 2704835 priority patent/CA2704835A1/en
Priority to ES02709525T priority patent/ES2262783T3/es
Priority to DE2002611657 priority patent/DE60211657T2/de
Priority to JP2002570503A priority patent/JP2004530327A/ja
Priority to KR1020097003776A priority patent/KR100974256B1/ko
Priority to CNA2009101498371A priority patent/CN101605320A/zh
Priority to PCT/US2002/004372 priority patent/WO2002071718A2/en
Priority to CN2009101394156A priority patent/CN101600194B/zh
Priority to CA 2438929 priority patent/CA2438929C/en
Priority to EP20020709525 priority patent/EP1362462B1/en
Priority to TW92126762A priority patent/TWI272809B/zh
Priority to TW91102715A priority patent/TW558891B/zh
Priority to US10/078,946 priority patent/US7136389B2/en
Priority to ARP020100591 priority patent/AR032817A1/es
Priority to MYPI20020603A priority patent/MY127553A/en
Assigned to INTERDIGITAL TECHNOLOGY CORPORATION reassignment INTERDIGITAL TECHNOLOGY CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHITRAPU, PRABHAKAR R., SHAHRIER, SHARIF M.
Publication of US20020055971A1 publication Critical patent/US20020055971A1/en
Priority to NO20033676A priority patent/NO20033676L/no
Priority to HK04110319A priority patent/HK1067476A1/xx
Priority to US11/542,842 priority patent/US7573890B2/en
Priority to JP2008032217A priority patent/JP5042874B2/ja
Priority to US12/414,021 priority patent/US8213385B2/en
Priority to HK10105654.4A priority patent/HK1138981A1/xx
Priority to US13/540,424 priority patent/US8792323B2/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00835—Determination of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C43/00—Ethers; Compounds having groups, groups or groups
    • C07C43/30—Compounds having groups
    • C07C43/313—Compounds having groups containing halogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/62—Halogen-containing esters
    • C07C69/63—Halogen-containing esters of saturated acids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
    • C07D307/79—Benzo [b] furans; Hydrogenated benzo [b] furans with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/26—Route discovery packet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/25—Mapping addresses of the same type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/25—Mapping addresses of the same type
    • H04L61/2503—Translation of Internet protocol [IP] addresses
    • H04L61/2514—Translation of Internet protocol [IP] addresses between local and global IP addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/25—Mapping addresses of the same type
    • H04L61/2503—Translation of Internet protocol [IP] addresses
    • H04L61/2521—Translation architectures other than single NAT servers
    • H04L61/2535—Multiple local networks, e.g. resolving potential IP address conflicts
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/25—Mapping addresses of the same type
    • H04L61/2503—Translation of Internet protocol [IP] addresses
    • H04L61/255—Maintenance or indexing of mapping tables
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/34—Modification of an existing route
    • H04W40/36—Modification of an existing route due to handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/082—Mobility data transfer for traffic bypassing of mobility servers, e.g. location registers, home PLMNs or home agents
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/105—PBS [Private Base Station] network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/005—Data network PoA devices

Definitions

  • the present invention relates to a system and method of mobile Internet communication. Specifically the present invention relates to managing the mobility of Mobile Nodes (MNs) within multiple administrative domains employing Network Address Translation enabled routers (NATs) for Internet communications.
  • MNs Mobile Nodes
  • NATs Network Address Translation enabled routers
  • NATs Network Address Translation enabled routers
  • IANA Internet Address Numbers Authority
  • MNs Mobile Nodes
  • a system and method for supporting mobile Internet communication has a plurality of networks.
  • Each network has a Network Address Translation router (NAT) with a unique global address, at least one Host associated with the NAT and at least one Mobile Node (MN).
  • NAT Network Address Translation router
  • MN Mobile Node
  • the Mobile Nodes (MNs) communicate within the system via the Hosts.
  • Each Host is associated with one NAT and has a service area in which it can communicate data to the MNs.
  • Each MN has a home Host within a home network which defines a default local address which is paired with the global address of the home network's NAT to define a default binding of the MN.
  • the invention provides the NAT of each network with an associated Mobile-Home Database (MHD) which identifies each MN, which has the network as its home network, with a) a local address of a current association of the MN with a Host within the network or b) a binding defined by a local address of an association of the MN with a Host within a different network and the global address of the different network's NAT.
  • MHD Mobile-Home Database
  • Each network's NAT's MHD also identifies each visiting MN, i.e. an MN which is currently associated with a Host associated with the NAT, but has a different home network, with a local address of the current Host association of the MN.
  • Each MN can be moved from a location where the MN communicates data via a first associated Host within a first network having a first NAT to a location within the service area of a second Host within the first network to communicate data via the second Host.
  • MN communication via the second host is enabled by communicating to the MHB of the first NAT a local address reflecting the MN's association with the second Host.
  • Each MN can also be moved from a location where the MN communicates data via the first associated Host within the first network to a location within the access range of a third Host within a different second network having a second NAT to communicate data via the third Host.
  • MN communication via the third Host is enabled by communicating to the MHB of the second NAT a local address reflecting the MN's association with the third Host.
  • the MN also communicates to the MHB of the MN's home network's NAT a binding including a new local address reflecting the MN's association with the third Host and the global address of the second NAT.
  • the system enables a data communication from a corresponding node (CN) to a selected MN to be communicated to the selected MN by establishing a binding based on the MN's default binding or the binding reflected in the MHB of the MN's home network's NAT.
  • the NAT with which the binding is established directs the communication to the local address identified in its MHB for the MN.
  • a preferred the system includes at least one network associated with a plurality of Hosts and at least one Host which is the home Host for a plurality of MNs. Nodes that are not mobile may also be associated with the Hosts within the system. These nodes can be identified in the Host's network's MHD or the network's NAT can be configured to bypass the MHD for communications directed to non-mobile nodes.
  • the NAT's MHD of each network identifies 24 bit local and global addresses and a location field.
  • Each MN which has the network as its home network, is identified in the NAT's MHD with a) a local address of a current association of the MN with a Host within the network, a null global address, and a home flag in the location field or b) a binding defined by a local address of an association of the MN with a Host in a different network and a global address of the different network's NAT and an away flag in the location field.
  • Each visiting MN is preferably identified in the visited network's NAT's MHD with a local address of the current Host association of the MN, a null global address, and a home flag in the location field.
  • a binding is established between a source/corresponding node (CN) and an MN based on the binding reflected in the MHD of the MN's home network's NAT when the corresponding location field has an away flag.
  • CN source/corresponding node
  • the present invention can be used to implement an Internet architecture consisting of a large number private networks, individually connected to the Internet backbone via NATs. Hosts within the same private network can communicate with one another, and also with external Hosts via the Internet backbone.
  • the routers in each private network maintain their own local routes and routers in the backbone maintain their own external routes. More specifically, the routers within a particular domain are not cognizant of routes outside that domain. Likewise, the backbone (public) routers are not cognizant of the routes to any local addresses.
  • FIG. 1 is a schematic diagram of an architecture and topology of a mobile network associated with the Internet.
  • FIG. 2 is a diagram of a conventional Internet communication binding.
  • FIG. 3 illustrates a portion of a Mobile-Home Database (MHD) of one of the Network Address Translation Routers (NATs) illustrated in FIG. 1 in accordance with the teachings of the present invention.
  • MHD Mobile-Home Database
  • FIG. 4 illustrates a portion of a Mobile-Home Database (MHD) of one of the Network Address Translation Routers (NATs) illustrated in FIG. 1 in accordance with the teachings of the present invention.
  • MHD Mobile-Home Database
  • private networks 10 , 12 , 20 are connected to an external Internet backbone via Network Address Translation enabled routers (NATs).
  • NATs Network Address Translation enabled routers
  • large number of private networks can be connected to the external Internet backbone.
  • Hosts within different private networks can communicate with each other via the backbone, using the NAT registered addresses assigned by IANA.
  • Hosts within the same private network can communicate with each other using one of the unregistered addresses.
  • the registered addresses are globally unique, while unregistered addresses have local significance only.
  • the local addresses and the global addresses are mutually exclusive and are conventionally 24 bits each.
  • networks 10 , 12 and 20 are connected to the Internet via NAT enabled routers NAT-A, NAT-B and NAT-N, respectively.
  • NAT-A, NAT-B and NAT-N are each assigned a unique Global Address by IANA.
  • Nodes within each private network 10 , 12 , 20 are assigned local address based upon the Host to which the node is connected.
  • node MN 0,A0 is illustrated as connected to the private network 10 via Host A0 , so the local address of node MN 0,A0 at Host A0 is a 24 bit code which indicates this connection.
  • the global address of a NAT is identified by the NAT name and the local address indicating a connection between a particular node MN X and a Host X is represented as MN X @Host X .
  • a conventional NAT table is set up.
  • the node initiating contact is referred to as a corresponding node (CN).
  • the first set of actions is to establish a binding by the NATs for the networks to which the nodes are currently connected.
  • the conventional process is described by the Internet Engineering Task Forces (IETF) Request for Comments (RFCs) 1631 and 3032.
  • IP Internet Protocol
  • FIG. 2 illustrates the format the conventional binding table established between the CN and the receiving node.
  • the bindings are made up of the nodes' global and local address combinations.
  • node MN 0,A0 in network 10 as CN may communicate node MN 0,B0 in network 20 .
  • the binding data is the combined Global Address NAT-A and the local address MN 0,A0 @Host A0 .
  • node MN 0,B0 the binding data is the combined Global Address NAT-B and local address MN 0,B0 @Host B0 .
  • the procedure for sending out a data packet from node MN 0,A0 to node MN 0,B0 is as follows.
  • the packet is encoded with the global address NAT-A as the source address and the global address NAT-B as the destination address is sent from the source node MN 0,A0 .
  • the receiving NAT, NAT-B in this example, checks the binding in its table, and retrieves the local address of the receiving node's Host, Host 0B in this example.
  • the packet is then forwarded to that Host through which it is received by the node MN 0,B0 .
  • its binding data represents a permanent address to which any CN may send data under the conventional binding system and protocols.
  • mobile nodes MN may change location so that simply addressing data to a prior known address does not assure delivery without some system to accommodate connection changes by the MN.
  • FIGS. 3 and 4 illustrate the architecture used to implement a micro-mobility protocol between the private networks shown.
  • the architecture includes an entity called a Mobile-Home Database (MHD) associated with each NAT. This is a large directory, tightly coupled to each NAT, for keeping track of the MNs within the private network. It also indicates when the MN has moved to a foreign network (FN).
  • MHD Mobile-Home Database
  • the MHD for each NAT preferably includes an index field for each mobile node, a home/away flag field indicating whether a mobile node is associated with the NAT, a local address or care of address (COA) field and a NAT address field.
  • Each MN has a home Host in a home network which defines a Home Address (HA) which is analogous to the permanent local address of a non-mobile node in that it is the address that a CN will use to contact the MN.
  • HA Home Address
  • the default binding for an MN is a combination of the global address of the MN's home network's NAT and the MN's home address. If at home, the MN's default binding will be used to establish a NAT/NAT connection for the CN/MN communication.
  • One convenient way to identify the mobile nodes is using their default or home address (HA), so the index field of a network's NAT's MHD preferably lists the HAs of all of the MNs whose home network is that network to identify the data record for each MN.
  • HA home address
  • the flag field represents a logical field, preferably having a value 0 or a value 1 to represent a home or an away status with respect to the network.
  • 0 is used to indicate that the MN has a connection with a Host in the network
  • 1 is used to indicate that the MN has a connection with a different network.
  • the local address field (COA) is used to indicate to which Host the MN is currently connected.
  • the local address field entry is a Host associated with a foreign network
  • the global address field contains the global address of that foreign network's NAT. In such case the flag field is set to 1.
  • the flag field is 0, the global address value is not needed since the relevant global address is that of the MHB's NAT.
  • FIGS. 3 and 4 illustrate various example records for the MHDs of NAT-B and NAT-N of the networks 12 and 20 , respectively, at a given point in time as illustrated in FIG. 1.
  • a MN is in communication with its home Host, as illustrated with respect to mobile nodes MN 0,B0 , MN B1 and MN 0,NK , the associated flag field is set to 0 and the local or COA field entry is the same as the home address. No NAT address information is required.
  • the MHD of the MN's home network's NAT has data entries for the flag field as 0 and the local address (COA) as the current association of the MN with its non-home Host.
  • COA local address
  • mobile node MN 1,B0 has a home host Host B0 , but is illustrated in FIG. 1 as connected to host Host B1 .
  • the MN is identified in the index field by its HA, MN 1,B0 @HoSt B0 , has 0 in the flag field and has MN 1,B0 @Host B1 as the COA as set forth in FIG. 3.
  • the NAT address field information is not needed since the global address remains the same because Host B1 and Host B0 are associated with the same network with the associated global address, namely NAT-B.
  • a MN from one network connects with a host of a different network
  • the MN is registered in that network's NAT with a visiting address.
  • node MN i,Nk has as its home host Host Nk in network 20 which communicates with the Internet via NAT-N.
  • node MN i,Nk is illustrated as visiting network 12 in connection with Host B1 which is associated with NAT-B.
  • mobile node MN i,Nk is assigned a visiting address VA represented as MN i,Nk @Host B1 in the MHD of NAT-B with a flag field 0 indicating its communication with the Internet through NAT-B and a local address of
  • the mobile node such as MN i,Nk
  • a communication is sent to the NAT of its home network, in this case, NAT-N, to enable efficient redirection of communications.
  • the communication to the MNs home network's NAT changes the NAT's MHD data with respect to the listing for the MN by setting the flag field to 1 and providing binding data for further Internet communications.
  • the binding data is comprised of the assigned visiting address VA and the global address of the NAT of the network which the MN is visiting.
  • the MHD of NAT-N in FIG. 4 reflects a flag value of 1, a local address of MN i,Nk @Host B1 and a NAT address of NAT-B.
  • a corresponding node attempting to communicate with mobile Node MN i,Nk will not be able to establish a binding with NAT-N since the flag in NAT-N's MHD is set to 1.
  • the binding is established with the binding represented by the local address and NAT address fields for MN i,Nk 's entry in NAT-N's MHD. Communication is then conducted establishing a binding with the foreign NAT, in the example NAT-B.
  • the visiting MN So long as the visiting MN does not establish an association with a Host of a different network, it will preferably retain its visiting address VA identification in the MHD of the NAT whose network is visiting, which VA will be also reflected in the MHD of the mobile node's home network's NAT.
  • the visiting mobile node If the visiting mobile node establishes an association with another Host within the same network that it is visiting, it will retain its same VA identification in the MHD of the NAT which is visiting, but will be provided with a new local address. That new local address will be stored in the visiting MN's MHD record's COA field and the visited network's NAT will direct communications to the MN based on that COA data. No change is required in the MN's home network's NAT's MHD in such case.
  • the hosts will periodically determine whether a connection is still established with a visiting MN. If the visited host determines that the MN has disconnected and the MN has not established a connection with another host, the visited host can communicate this fact to its associated NAT which will change the COA for the visiting MN's entry to a null data state.
  • An example of this is the entry for visiting node MN h,Pq in FIG. 3. That entry indicates that MN h,Pq had connected with foreign Host B1 , but is no longer connected to network 12 . Thus, no connection of MN h,Pq is illustrated with any Host in FIG. 1.
  • Such an entry will also indicate to a CN that the MN has not established a connection with another host, since the CN will only contact network 12 via the VA of MN h,Pq , namely MN h,Pq @Host B1 , if MN h,Pq 's home network's NAT's MHD record has not been updated. If a CN attempts to communicate with the visiting node at that time and is referred to the visited network's NAT by the MN's home Host's NAT, a binding will not be established and the communication will fail.
  • a MN's home network's NAT When a MN's home network's NAT receives a communication to change the binding information for the MN from one foreign NAT to another, it preferably sends a message to the first foreign NAT reflecting the the MN is no longer visiting that NAT's network, so that the visiting node record can be deleted from the first foreign NAT's MHD. Such a message is preferably also sent, when a MN returns to its home network after visiting other networks.
  • the CN never needs to know the current location of the MN.
  • the CN only needs to be aware of the static, default binding based on a MN's home address (HA) and home network's global address. This arrangement saves the flurry of registration messages from being sent over the global Internet.
  • HA home address
  • the tight coupling of the MHDs to the NATs means that an IP data packet does not have to travel first to the home network.
  • the packet can be tunneled directly to the foreign network where the MN is located. This avoids the infamous triangle routing problem.
  • the micro-mobility protocol for MNs roaming across multiple foreign networks starts with the CN's NAT trying to establish a binding with the MN's home network's NAT.
  • the process fails, when the status-bit in the MN's home network's NAT's MHD is a 1. This indicates that the MN is not currently in its home network (HN); it is in a FN.
  • the FN has assigned a VA to the MN which is stored in the MN's home network's NAT's MHD along with the static global address of the FN. That binding data is sent back to the CN's NAT and the CN's NAT then establishes binding with the FN's NAT.
  • the rest of the protocol then proceeds the same way as if the MN were connected with a host in its home network.
  • the entries for the MN in the MHD of FN 1 are preferably set 0, NULL, NULL when the MN loses contact with the FN 1 .
  • the MN then moves to the different FN 2 , it communicates with FN 2 via a host, Host 2 , associated with the NAT of FN 2 , NAT-FN 2 .
  • the MN is assigned a VA of MN@Host 2 such that the entries for that VA in the MHD of NAT-FN 2 are set to 0, MN@Host 2 , NULL.
  • the binding data (MN@Host 2 , NAT-FN 2 ) is sent to the MN's home network's NAT and the CN's NAT. A new binding is established between the CN's NAT and NAT-FN 2 . The rest of the protocol then proceeds as described above.
  • a MN moves from a foreign network FN 1 to back to its home network HN
  • the entry for the MN in the MHD of the NAT of FN 1 is preferably set 0, NULL, NULL when the MN loses contact with the FN 1 .
  • the MN then moves to its HN, it communicates with its HN via a host, Host HN , associated with its HN's NAT, NAT-HN.
  • Host HN may or may not be the MN's home host, Host Home .
  • the MN already has a data record for its HA of MN@Host Home .
  • That record is preferably then changed to set the associated data fields to 0, MN@Host HN , NULL.
  • the binding data (MN@Host Home , NAT-HN) is sent to the CN's NAT. A new binding is established between the CN's NAT and NAT-HN. The rest of the protocol then proceeds as described above.
  • the CN's NAT in the above cases would normally be the CN's home network's NAT. However, if the CN is a MN which is visiting a FN, the CN's NAT is the NAT of the FN being visited.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)
US10/026,060 1999-11-01 2001-12-19 Method and system for a low-overhead mobility management protocol in the internet protocol layer Abandoned US20020055971A1 (en)

Priority Applications (34)

Application Number Priority Date Filing Date Title
US10/026,060 US20020055971A1 (en) 1999-11-01 2001-12-19 Method and system for a low-overhead mobility management protocol in the internet protocol layer
CA 2438929 CA2438929C (en) 2001-02-21 2002-02-14 A method and system for a low-overhead mobility management protocol in the internet protocol layer
EP20020709525 EP1362462B1 (en) 2001-02-21 2002-02-14 A method and system for a low-overhead mobility management protocol in the internet protocol layer
KR1020077013445A KR100787085B1 (ko) 2001-02-21 2002-02-14 인터넷 프로토콜 층 안에서의 낮은-오버헤드 이동성 관리프로토콜을 위한 방법 및 시스템
CN2009101394156A CN101600194B (zh) 2001-02-21 2002-02-14 互联网协议层中低架空移动率管理协议的方法与系统
CNA2009101498371A CN101605320A (zh) 2001-02-21 2002-02-14 互联网协议层中低架空移动率管理协议的方法与系统
KR1020037010956A KR100604170B1 (ko) 2001-02-21 2002-02-14 인터넷 프로토콜 층 안에서의 낮은-오버헤드 이동성 관리프로토콜을 위한 방법 및 시스템
KR1020087002942A KR20080025755A (ko) 2001-02-21 2002-02-14 인터넷 프로토콜 층 안에서의 낮은-오버헤드 이동성 관리프로토콜을 위한 방법 및 시스템
EP20060009962 EP1701507B1 (en) 2001-02-21 2002-02-14 A method and system for a low-overhead mobility management protocol in the internet protocol layer
MXPA03007522A MXPA03007522A (es) 2001-02-21 2002-02-14 Metodo y sistema para un protocolo de administracion de movilidad con poca informacion suplementaria en la capa de protocolo de internet.
KR1020037013811A KR100789797B1 (ko) 2001-02-21 2002-02-14 인터넷 프로토콜 층 안에서의 낮은-오버헤드 이동성 관리프로토콜을 위한 방법 및 시스템
KR1020087016492A KR100935121B1 (ko) 2001-02-21 2002-02-14 복수의 이동 노드들의 인터넷을 통한 통신을 용이하게 하도록 구성된 통신 네트워크 장치
AU2002244005A AU2002244005A1 (en) 2001-02-21 2002-02-14 A method and system for a low-overhead mobility management protocol in the internet protocol layer
AT02709525T ATE327627T1 (de) 2001-02-21 2002-02-14 System und verfahren für ein mobilitätsverwaltungsprotokoll mit geringem zusatzaufwand in einer internet protokollschicht
CA 2704835 CA2704835A1 (en) 2001-02-21 2002-02-14 A method and system for a low-overhead mobility management protocol in the internet protocol layer
ES02709525T ES2262783T3 (es) 2001-02-21 2002-02-14 Un metodo y sistema para un protocolo de gestion de movilidad de tara reducida en la capa de protocolo internet.
DE2002611657 DE60211657T2 (de) 2001-02-21 2002-02-14 System und verfahren für ein mobilitätsverwaltungsprotokoll mit geringem zusatzaufwand in einer internet protokollschicht
JP2002570503A JP2004530327A (ja) 2001-02-21 2002-02-14 インターネットプロトコルレイヤーにおける低オーバーヘッド移動度管理プロトコルのための方法およびシステム
KR1020097003776A KR100974256B1 (ko) 2001-02-21 2002-02-14 복수의 이동 노드들의 인터넷을 통한 통신을 용이하게 하도록 구성된 통신 네트워크 장치
CNB028052730A CN100505739C (zh) 2001-02-21 2002-02-14 互联网协议层中低架空移动率管理协议的方法与系统
KR1020077019555A KR100914697B1 (ko) 2001-02-21 2002-02-14 인터넷 프로토콜 층 안에서의 낮은-오버헤드 이동성 관리프로토콜을 위한 방법 및 시스템
PCT/US2002/004372 WO2002071718A2 (en) 2001-02-21 2002-02-14 A method and system for a low-overhead mobility management protocol in the internet protocol layer
TW91102715A TW558891B (en) 2001-02-21 2002-02-18 A method and system for a low-overhead mobility management protocol in the internet protocol layer
TW92126762A TWI272809B (en) 2001-02-21 2002-02-18 A method and system for a low-overhead mobility management protocol in the internet protocol layer
US10/078,946 US7136389B2 (en) 2001-02-21 2002-02-20 Method and system for a low-overhead mobility management protocol in the internet protocol layer
ARP020100591 AR032817A1 (es) 2001-02-21 2002-02-21 Un metodo y un sistema para un protocolo de gerenciamiento de movilidad de bajo rendimiento en la capa de protocolo de internet
MYPI20020603A MY127553A (en) 2001-02-21 2002-02-21 A method and system for a low-overhead mobility management protocol in the internet protocol layer.
NO20033676A NO20033676L (no) 2001-02-21 2003-08-19 Fremgangsmåte og system for lav administrasjonsmobilitetshåndtering i Internett protokollaget
HK04110319A HK1067476A1 (en) 2001-02-21 2004-12-29 A method and system for a low-overhead mobility management protocol in the internet protocol layer
US11/542,842 US7573890B2 (en) 2001-02-21 2006-10-04 Method and system for a low-overhead mobility management protocol in the internet protocol layer
JP2008032217A JP5042874B2 (ja) 2001-02-21 2008-02-13 インターネットプロトコルレイヤーにおける低オーバーヘッド移動度管理プロトコルのための方法およびシステム
US12/414,021 US8213385B2 (en) 2001-02-21 2009-03-30 Method and apparatus for wireless communication with low-overhead mobility management
HK10105654.4A HK1138981A1 (en) 2001-02-21 2010-06-09 A method and system for a low-overhead mobility management protocol in the internet protocol layer
US13/540,424 US8792323B2 (en) 2001-02-21 2012-07-02 Method and apparatus for wireless communication with low-overhead mobility management

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP311703/1999 1999-11-01
US27019001P 2001-02-21 2001-02-21
US27076701P 2001-02-22 2001-02-22
US29384701P 2001-05-25 2001-05-25
US29616801P 2001-06-06 2001-06-06
US30904601P 2001-07-31 2001-07-31
US09/997,922 US20020154613A1 (en) 2001-02-21 2001-11-30 Method and system for a low-overhead mobility management protocol in the internet protocol layer
US10/026,060 US20020055971A1 (en) 1999-11-01 2001-12-19 Method and system for a low-overhead mobility management protocol in the internet protocol layer

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
US09/997,922 Continuation-In-Part US20020154613A1 (en) 1999-11-01 2001-11-30 Method and system for a low-overhead mobility management protocol in the internet protocol layer
US09/997,992 Continuation-In-Part US6433195B1 (en) 1999-11-01 2001-11-30 Production methods of 5-phthalancarbonitrile compound and an intermediate therefor

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US09/997,922 Continuation-In-Part US20020154613A1 (en) 1999-11-01 2001-11-30 Method and system for a low-overhead mobility management protocol in the internet protocol layer
US10/078,946 Continuation-In-Part US7136389B2 (en) 2001-02-21 2002-02-20 Method and system for a low-overhead mobility management protocol in the internet protocol layer

Publications (1)

Publication Number Publication Date
US20020055971A1 true US20020055971A1 (en) 2002-05-09

Family

ID=39880327

Family Applications (5)

Application Number Title Priority Date Filing Date
US10/026,060 Abandoned US20020055971A1 (en) 1999-11-01 2001-12-19 Method and system for a low-overhead mobility management protocol in the internet protocol layer
US10/078,946 Expired - Fee Related US7136389B2 (en) 2001-02-21 2002-02-20 Method and system for a low-overhead mobility management protocol in the internet protocol layer
US11/542,842 Expired - Fee Related US7573890B2 (en) 2001-02-21 2006-10-04 Method and system for a low-overhead mobility management protocol in the internet protocol layer
US12/414,021 Expired - Fee Related US8213385B2 (en) 2001-02-21 2009-03-30 Method and apparatus for wireless communication with low-overhead mobility management
US13/540,424 Expired - Fee Related US8792323B2 (en) 2001-02-21 2012-07-02 Method and apparatus for wireless communication with low-overhead mobility management

Family Applications After (4)

Application Number Title Priority Date Filing Date
US10/078,946 Expired - Fee Related US7136389B2 (en) 2001-02-21 2002-02-20 Method and system for a low-overhead mobility management protocol in the internet protocol layer
US11/542,842 Expired - Fee Related US7573890B2 (en) 2001-02-21 2006-10-04 Method and system for a low-overhead mobility management protocol in the internet protocol layer
US12/414,021 Expired - Fee Related US8213385B2 (en) 2001-02-21 2009-03-30 Method and apparatus for wireless communication with low-overhead mobility management
US13/540,424 Expired - Fee Related US8792323B2 (en) 2001-02-21 2012-07-02 Method and apparatus for wireless communication with low-overhead mobility management

Country Status (16)

Country Link
US (5) US20020055971A1 (ko)
EP (2) EP1362462B1 (ko)
JP (2) JP2004530327A (ko)
KR (5) KR100787085B1 (ko)
CN (3) CN101600194B (ko)
AR (1) AR032817A1 (ko)
AT (1) ATE327627T1 (ko)
AU (1) AU2002244005A1 (ko)
CA (2) CA2438929C (ko)
DE (1) DE60211657T2 (ko)
ES (1) ES2262783T3 (ko)
HK (1) HK1067476A1 (ko)
MX (1) MXPA03007522A (ko)
NO (1) NO20033676L (ko)
TW (2) TW558891B (ko)
WO (1) WO2002071718A2 (ko)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002071718A2 (en) * 2001-02-21 2002-09-12 Interdigital Technology Corporation A method and system for a low-overhead mobility management protocol in the internet protocol layer
US20030193912A1 (en) * 2002-02-04 2003-10-16 O'neill Alan Packet forwarding methods for use in handoffs
US20030193952A1 (en) * 2002-02-04 2003-10-16 O'neill Alan Mobile node handoff methods and apparatus
US20040013099A1 (en) * 2002-04-15 2004-01-22 O'neill Alan Method and apparatus for extending mobile IP
US20040047348A1 (en) * 2002-02-04 2004-03-11 O'neill Alan Methods and apparatus for aggregating MIP and AAA messages
EP1439673A2 (en) * 2003-01-09 2004-07-21 NTT DoCoMo, Inc. Mobile communications system and routing management apparatus used in the mobile communications system
US20050041650A1 (en) * 2002-02-04 2005-02-24 O'neill Alan Method for extending mobile IP and AAA to enable integrated support for local access and roaming access connectivity
US20070043876A1 (en) * 2005-08-19 2007-02-22 Nokia Corporation Stimulation traffic for binding refreshment
US7260649B1 (en) * 2002-04-16 2007-08-21 Cisco Technology, Inc. Apparatus and methods for forwarding data between public networks via a private network
US20080259788A1 (en) * 2005-10-28 2008-10-23 Huawei Technologies Co., Ltd. Method For Routing Mobile Node In Wireless Mesh Network And A Communication System Thereof
US20100061380A1 (en) * 2008-09-05 2010-03-11 Cisco Technology, Inc., A Corporation Of California Load Balancing across Multiple Network Address Translation (NAT) Instances and/or Processors
EP2371154A1 (en) * 2008-12-31 2011-10-05 Nortel Networks Limited Creating a globally unique indentifier of a subscriber device
US20190215300A1 (en) * 2018-01-09 2019-07-11 Circle Media Labs Inc. Devices, networks, storage media, and methods for identifying client devices across a network address translation border

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7486958B2 (en) * 2001-09-05 2009-02-03 Networks In Motion, Inc. System and method for maintaining an online point-of-interest directory
US7711819B2 (en) * 2001-10-31 2010-05-04 Fujitsu Limited Load balancer
US7574492B2 (en) * 2002-09-12 2009-08-11 Broadcom Corporation Optimizing network configuration from established usage patterns of access points
US8254935B2 (en) 2002-09-24 2012-08-28 Fujitsu Limited Packet transferring/transmitting method and mobile communication system
KR100510127B1 (ko) * 2002-12-31 2005-08-25 삼성전자주식회사 무선랜 환경에서 핸드오버 방법 및 모바일 노드의핸드오버 장치
JP2004242019A (ja) * 2003-02-05 2004-08-26 Ntt Docomo Inc 移動通信制御システム、ネットワーク管理サーバ、モバイルノード、アクセスノード及びアンカーノード
JP2004253914A (ja) * 2003-02-18 2004-09-09 Ntt Docomo Inc 通信システム、アドレス管理方法、中継装置および管理装置
US7535878B2 (en) * 2003-03-28 2009-05-19 Intel Corporation Method, apparatus and system for ensuring reliable access to a roaming mobile node
US7162253B2 (en) * 2003-09-08 2007-01-09 Nokia Corporation Geographical position extension in messaging for a terminal node
US7580396B2 (en) 2003-11-05 2009-08-25 Intel Corporation Method, apparatus and system for obtaining and retaining a mobile node home address
US20050111380A1 (en) * 2003-11-25 2005-05-26 Farid Adrangi Method, apparatus and system for mobile nodes to dynamically discover configuration information
US20050113109A1 (en) * 2003-11-25 2005-05-26 Farid Adrangi Method, apparatus and system for context-based registrations based on intelligent location detection
US20050111454A1 (en) * 2003-11-25 2005-05-26 Narjala Ranjit S. Method, apparatus and system for intelligently and dynamically routing mobile internet protocol packets
US8000297B2 (en) * 2003-11-26 2011-08-16 Electronics And Telecommunciations Research Institute Access router based mobile IPv6 fast handover method
US20050136924A1 (en) * 2003-12-04 2005-06-23 Farid Adrangi Method, apparatus and system for enabling roaming mobile nodes to utilize private home IP addresses
US8064427B2 (en) 2004-01-07 2011-11-22 Panasonic Corporation Communication system, mobile terminal and access router
BRPI0506722A (pt) * 2004-01-07 2007-05-02 Matsushita Electric Ind Co Ltd sistema de comunicação, terminal móvel, e, roteador de acesso
US7330726B2 (en) * 2004-06-07 2008-02-12 Spyder Navigation Llc Determining geographical position in IPv6 networks
US7894383B2 (en) 2004-11-04 2011-02-22 Panasonic Corporation Multi-interface communication device, terminal, and path switching method
US7760720B2 (en) * 2004-11-09 2010-07-20 Cisco Technology, Inc. Translating native medium access control (MAC) addresses to hierarchical MAC addresses and their use
KR100813793B1 (ko) 2004-12-23 2008-03-13 주식회사 케이티 다중 이동 라우터 구조에 의한 휴대 인터넷 서비스를 위한이동 라우터 대치 방법
US20060245362A1 (en) * 2005-01-07 2006-11-02 Choyi Vinod K Method and apparatus for providing route-optimized secure session continuity between mobile nodes
CN100442751C (zh) * 2005-01-19 2008-12-10 华为技术有限公司 移动主机开展组播业务的系统及其方法
CN100372417C (zh) * 2005-02-07 2008-02-27 华为技术有限公司 本地子网发现相关子网中目的边界对象的方法
US7894407B2 (en) * 2005-03-25 2011-02-22 Alcatel-Lucent Usa Inc. Method and apparatus for seamless roaming for wireless networks
WO2006129858A1 (en) * 2005-05-31 2006-12-07 Matsushita Electric Industrial Co., Ltd. Method and apparatus for controlling packet forwarding
EP1739893A1 (en) 2005-06-30 2007-01-03 Matsushita Electric Industrial Co., Ltd. Optimized reverse tunnelling for packet switched mobile communication systems
WO2007101628A1 (en) * 2006-03-08 2007-09-13 Matsushita Electric Industrial Co., Ltd. Mobile ipv6 optimised reverse tunnelling for multi-homed terminals
WO2007087110A2 (en) 2005-12-22 2007-08-02 Padcom Holdings, Inc Multi-network seamless roaming mobile router with auto-discovery and migration of downstream devices on the mobile network
US9161205B2 (en) * 2006-02-14 2015-10-13 Alcatel Lucent Route optimization at a packet data switch node
JP4990920B2 (ja) * 2006-03-08 2012-08-01 パナソニック株式会社 マルチホーム端末のためのモバイルＩＰｖ６の最適化リバース・トンネリング
CN100456742C (zh) * 2006-04-30 2009-01-28 国家数字交换系统工程技术研究中心 移动互联网协议路由处理方法和系统及路由器
JP2008015880A (ja) * 2006-07-07 2008-01-24 Fuji Xerox Co Ltd ネットワークシステム、画像処理装置、およびコンピュータプログラム
US8595357B2 (en) * 2007-03-01 2013-11-26 Cisco Technology, Inc. System and method for hosted network management
DE602007009575D1 (de) * 2007-04-04 2010-11-11 Ericsson Telefon Ab L M Mobilnetz-adressenübersetzung auf grossem massstab
ATE431035T1 (de) * 2007-07-05 2009-05-15 Conveneer Ab Verfahren, vorrichtung und system zur mobilitätsverwaltung und leistungsfähigen informationsauffindung in einem kommunikationsnetz
US7986667B2 (en) 2007-10-19 2011-07-26 Ericsson Ab Forwarding data path optimization in a distributed environment for achieving micro-mobility
JP4571968B2 (ja) * 2007-10-29 2010-10-27 富士通株式会社 移動通信システム及び同システムにおける転送方法及び基地局
US8179859B2 (en) * 2008-02-21 2012-05-15 Wang Ynjiun P Roaming encoded information reading terminal
US9025563B2 (en) 2008-03-13 2015-05-05 Qualcomm Incorporated Supporting communications in a wireless network using an IP address
US20090262702A1 (en) * 2008-04-18 2009-10-22 Amit Khetawat Method and Apparatus for Direct Transfer of RANAP Messages in a Home Node B System
US8165090B2 (en) 2008-05-15 2012-04-24 Nix John A Efficient handover of media communications in heterogeneous IP networks
CN101605367A (zh) * 2008-06-13 2009-12-16 三星电子株式会社 Ue在家用基站之间切换的方法
US8165091B2 (en) * 2008-06-27 2012-04-24 Nix John A Efficient handover of media communications in heterogeneous IP networks using LAN profiles and network handover rules
US8228861B1 (en) 2008-09-12 2012-07-24 Nix John A Efficient handover of media communications in heterogeneous IP networks using handover procedure rules and media handover relays
US8072975B2 (en) * 2008-11-12 2011-12-06 Dell Products, Lp Host discovery across different address spaces
US8191785B2 (en) 2009-03-05 2012-06-05 Hand Held Products, Inc. Encoded information reading terminal operating in infrastructure mode and ad-hoc mode
US20110185083A1 (en) * 2010-01-27 2011-07-28 Electronics And Telecommunications Research Institute Identifier and locator structure, and communication method based on the structure
CN102869122B (zh) 2011-07-05 2018-08-28 北京三星通信技术研究有限公司 避免切换失败的方法
CN103580880B (zh) * 2012-08-03 2017-12-29 华为技术有限公司 一种快速通知cgn异常的方法、设备及系统
US9871717B2 (en) * 2014-04-25 2018-01-16 Metaswitch Networks Ltd Data processing
US9954777B2 (en) 2016-01-14 2018-04-24 International Business Machines Corporation Data processing
CN106658479B (zh) * 2016-11-16 2020-12-11 广东新岸线科技有限公司 一种无线网络融合的实现方法
US10142903B2 (en) 2016-12-07 2018-11-27 Wistron Neweb Corporation Inter-domain handover method and system for user equipment and relay gateway device
CN110730116B (zh) * 2019-10-21 2021-10-29 杭州鸿雁智能科技有限公司 局域网内的通信设备的操作方法、通信设备及网关设备
US11589188B1 (en) 2021-05-27 2023-02-21 T-Mobile Usa, Inc. Device-based timely emergency call routing

Family Cites Families (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3411159B2 (ja) 1996-08-02 2003-05-26 株式会社日立製作所 移動計算機サポートシステム
JPH10117207A (ja) 1996-10-11 1998-05-06 Matsushita Electric Ind Co Ltd モバイル端末接続方法およびネットワーク用ルータ
JPH10178421A (ja) * 1996-10-18 1998-06-30 Toshiba Corp パケット処理装置、移動計算機装置、パケット転送方法及びパケット処理方法
US6173007B1 (en) * 1997-01-15 2001-01-09 Qualcomm Inc. High-data-rate supplemental channel for CDMA telecommunications system
US6587882B1 (en) * 1997-08-01 2003-07-01 Kabushiki Kaisha Toshiba Mobile IP communication scheme using visited site or nearby network as temporal home network
JP3641112B2 (ja) * 1997-09-05 2005-04-20 株式会社東芝 パケット中継装置、移動計算機装置、移動計算機管理装置、パケット中継方法、パケット送信方法及び移動計算機位置登録方法
US6577643B1 (en) * 1997-10-14 2003-06-10 Lucent Technologies Inc. Message and communication system in a network
US6535493B1 (en) * 1998-01-15 2003-03-18 Symbol Technologies, Inc. Mobile internet communication protocol
JP3641128B2 (ja) * 1998-02-20 2005-04-20 株式会社東芝 移動計算機装置、移動計算機管理装置、移動計算機管理方法及び通信制御方法
US6058431A (en) * 1998-04-23 2000-05-02 Lucent Technologies Remote Access Business Unit System and method for network address translation as an external service in the access server of a service provider
JPH11353360A (ja) 1998-06-04 1999-12-24 Hitachi Ltd 作業計画設計方法及び作業支援方法
JP3581251B2 (ja) * 1998-06-16 2004-10-27 株式会社東芝 通信システム、データパケット転送方法、ルータ装置及びパケット中継装置
US6115580A (en) * 1998-09-08 2000-09-05 Motorola, Inc. Communications network having adaptive network link optimization using wireless terrain awareness and method for use therein
JP4057715B2 (ja) 1998-09-16 2008-03-05 株式会社東芝 ルータ装置、無線端末装置、無線基地局及びメッセージ送信制御方法
US6328098B1 (en) 1998-11-10 2001-12-11 Valeo Inc. Side member for heat exchanger and heat exchanger incorporating side plate
JP2000149104A (ja) 1998-11-12 2000-05-30 Fuji Electric Co Ltd 情報収集機能付き自動販売機及びそのシステム
US6353607B1 (en) * 1998-11-20 2002-03-05 Ericsson Inc. IP base GSM inter-MSC handover
CA2287613A1 (en) * 1998-12-07 2000-06-07 Kenneth Carl Budka Methods and apparatus for route optimization in a communications system
US6654359B1 (en) * 1998-12-11 2003-11-25 Lucent Technologies Inc. Wireless access to packet-based networks
US6496505B2 (en) * 1998-12-11 2002-12-17 Lucent Technologies Inc. Packet tunneling optimization to wireless devices accessing packet-based wired networks
US6434134B1 (en) * 1998-12-11 2002-08-13 Lucent Technologies, Inc. Dynamic address assignment for wireless devices accessing packet-based wired networks
US6452920B1 (en) * 1998-12-30 2002-09-17 Telefonaktiebolaget Lm Ericsson Mobile terminating L2TP using mobile IP data
FI108834B (fi) * 1999-03-29 2002-03-28 Nokia Corp IP-liikkuvuudenhallinta matkaviestinjärjestelmässä
GB2348570B (en) * 1999-03-31 2003-03-05 Ericsson Telefon Ab L M Mobile internet access
JP3764016B2 (ja) * 1999-05-10 2006-04-05 財団法人流通システム開発センタ− 統合ｉｐ転送網
US6621810B1 (en) * 1999-05-27 2003-09-16 Cisco Technology, Inc. Mobile IP intra-agent mobility
KR100298371B1 (ko) 1999-06-09 2001-11-01 서평원 패킷 이동 통신망의 핸드 오버 수행 방법
US6487406B1 (en) * 1999-06-16 2002-11-26 Telcordia Technologies, Inc. PCS-to-mobile IP internetworking
WO2001006707A1 (en) * 1999-07-19 2001-01-25 British Telecommunications Public Limited Company Telecommunications routing
EP1204250A4 (en) * 1999-07-22 2009-04-01 Hitachi Ltd MOBILE IP NETWORK SYSTEM AND CONNECTION SWITCHING METHOD
US20020055971A1 (en) * 1999-11-01 2002-05-09 Interdigital Technology Corporation Method and system for a low-overhead mobility management protocol in the internet protocol layer
US6310222B1 (en) 1999-11-01 2001-10-30 Sumika Fine Chemicals Co., Ltd. Production method of 5-phthalancarbonitrile compound, intermediate therefor and production method of the intermediate
US7197017B1 (en) * 2000-01-04 2007-03-27 Qualcomm, Incorporated Method and apparatus for channel optimization during point-to-point protocol (PPP) session requests
JP3633430B2 (ja) * 2000-03-27 2005-03-30 三菱電機株式会社 通信方法、通信システム、通信装置、及び記録媒体
US6907017B2 (en) * 2000-05-22 2005-06-14 The Regents Of The University Of California Mobility management in wireless internet protocol networks
ATE469522T1 (de) * 2000-10-18 2010-06-15 Ericsson Telefon Ab L M Nahtlose weiterreichung bei mobile ip
EP1329076A1 (en) * 2000-10-26 2003-07-23 BRITISH TELECOMMUNICATIONS public limited company Telecommunications routing
JP3814185B2 (ja) * 2000-11-13 2006-08-23 松下電器産業株式会社 基地局装置、移動通信端末装置、及びそれらを用いた無線アクセスシステム
US7079511B2 (en) * 2000-12-06 2006-07-18 Qualcomm, Incorporated Method and apparatus for handoff of a wireless packet data services connection
US7333482B2 (en) * 2000-12-22 2008-02-19 Interactive People Unplugged Ab Route optimization technique for mobile IP
US6856624B2 (en) * 2001-02-21 2005-02-15 Alcatel Temporary unique private address
US7480272B2 (en) * 2001-04-02 2009-01-20 Toshiba America Research, Inc Soft handoff in IP-based CDMA networks by IP encapsulation
EP1418713A4 (en) * 2001-08-08 2010-01-06 Fujitsu Ltd SERVER, MOBILE COMMUNICATION TERMINAL, RADIO, COMMUNICATION PROCESS FOR A COMMUNICATION SYSTEM AND COMMUNICATION SYSTEM
US6993335B2 (en) * 2002-11-15 2006-01-31 Motorola, Inc. Apparatus and method for mobile/IP handoff between a plurality of access technologies
US7686641B2 (en) * 2008-06-20 2010-03-30 Nexus, Incorporated Wire piercing electrical connector
KR20110082541A (ko) * 2008-11-07 2011-07-19 파나소닉 주식회사 핸드오버 방법, 그 방법에서 이용되는 이동 단말 및 홈 에이전트

Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1701507A1 (en) * 2001-02-21 2006-09-13 Interdigital Technology Corporation A method and system for a low-overhead mobility management protocol in the internet protocol layer
WO2002071718A3 (en) * 2001-02-21 2003-02-06 Interdigital Tech Corp A method and system for a low-overhead mobility management protocol in the internet protocol layer
US8792323B2 (en) 2001-02-21 2014-07-29 Interdigital Technology Corporation Method and apparatus for wireless communication with low-overhead mobility management
US8213385B2 (en) 2001-02-21 2012-07-03 Interdigital Technology Corporation Method and apparatus for wireless communication with low-overhead mobility management
US20090238145A1 (en) * 2001-02-21 2009-09-24 Interdigital Technology Corporation Method and apparatus for wireless communication with low-overhead mobility management
US7573890B2 (en) 2001-02-21 2009-08-11 Interdigital Technolgy Corporation Method and system for a low-overhead mobility management protocol in the internet protocol layer
WO2002071718A2 (en) * 2001-02-21 2002-09-12 Interdigital Technology Corporation A method and system for a low-overhead mobility management protocol in the internet protocol layer
KR100787085B1 (ko) * 2001-02-21 2007-12-21 인터디지탈 테크날러지 코포레이션 인터넷 프로토콜 층 안에서의 낮은-오버헤드 이동성 관리프로토콜을 위한 방법 및 시스템
US20070025366A1 (en) * 2001-02-21 2007-02-01 Interdigital Technology Corporation Method and system for a low-overhead mobility management protocol in the internet protocol layer
US7136389B2 (en) 2001-02-21 2006-11-14 Interdigital Technology Corporation Method and system for a low-overhead mobility management protocol in the internet protocol layer
US7525937B2 (en) 2002-02-04 2009-04-28 Qualcomm Incorporated Method for extending mobile IP and AAA to enable integrated support for local access and roaming access connectivity
US20030193952A1 (en) * 2002-02-04 2003-10-16 O'neill Alan Mobile node handoff methods and apparatus
US20030193912A1 (en) * 2002-02-04 2003-10-16 O'neill Alan Packet forwarding methods for use in handoffs
US20050041650A1 (en) * 2002-02-04 2005-02-24 O'neill Alan Method for extending mobile IP and AAA to enable integrated support for local access and roaming access connectivity
US8649352B2 (en) 2002-02-04 2014-02-11 Qualcomm Incorporated Packet forwarding methods for use in handoffs
US20060111102A1 (en) * 2002-02-04 2006-05-25 O'neill Alan Controlling hand-off in a mobile node with two mobile IP clients
US8179840B2 (en) 2002-02-04 2012-05-15 Qualcomm Incorporated Method for extending mobile IP and AAA to enable integrated support for local access and roaming access connectivity
US8095130B2 (en) 2002-02-04 2012-01-10 Qualcomm Incorporated Controlling hand-off in a mobile node with two mobile IP clients
US20090247155A1 (en) * 2002-02-04 2009-10-01 Qualcomm Incorporated Controlling hand-off in a mobile node with two mobile ip clients
US7509123B2 (en) 2002-02-04 2009-03-24 Qualcomm Incorporated Controlling hand-off in a mobile node with two mobile IP clients
US20090225688A1 (en) * 2002-02-04 2009-09-10 Qualcomm Incorporated Method for extending mobile ip and aaa to enable integrated support for local access and roaming access connectivity
US7564824B2 (en) 2002-02-04 2009-07-21 Qualcomm Incorporated Methods and apparatus for aggregating MIP and AAA messages
US20040047348A1 (en) * 2002-02-04 2004-03-11 O'neill Alan Methods and apparatus for aggregating MIP and AAA messages
US20040013099A1 (en) * 2002-04-15 2004-01-22 O'neill Alan Method and apparatus for extending mobile IP
US9226139B2 (en) 2002-04-15 2015-12-29 Qualcomm Incorporated Methods and apparatus for extending mobile IP
US7623497B2 (en) 2002-04-15 2009-11-24 Qualcomm, Incorporated Methods and apparatus for extending mobile IP
US7734819B1 (en) 2002-04-16 2010-06-08 Cisco Technology, Inc. Apparatus and methods for forwarding data between public networks via a private network
US7260649B1 (en) * 2002-04-16 2007-08-21 Cisco Technology, Inc. Apparatus and methods for forwarding data between public networks via a private network
EP1439673A3 (en) * 2003-01-09 2005-10-19 NTT DoCoMo, Inc. Mobile communications system and routing management apparatus used in the mobile communications system
EP1439673A2 (en) * 2003-01-09 2004-07-21 NTT DoCoMo, Inc. Mobile communications system and routing management apparatus used in the mobile communications system
US7307967B2 (en) 2003-01-09 2007-12-11 Ntt Docomo, Inc. Mobile communications system and routing management apparatus used in the mobile communications system
US20040196818A1 (en) * 2003-01-09 2004-10-07 Ntt Docomo, Inc. Mobile communications system and routing management apparatus used in the mobile communications system
US20070043876A1 (en) * 2005-08-19 2007-02-22 Nokia Corporation Stimulation traffic for binding refreshment
US8165040B2 (en) 2005-10-28 2012-04-24 Huawei Technologies Co., Ltd. Method for routing mobile node in wireless mesh network and a communication system thereof
US20080259788A1 (en) * 2005-10-28 2008-10-23 Huawei Technologies Co., Ltd. Method For Routing Mobile Node In Wireless Mesh Network And A Communication System Thereof
US20100061380A1 (en) * 2008-09-05 2010-03-11 Cisco Technology, Inc., A Corporation Of California Load Balancing across Multiple Network Address Translation (NAT) Instances and/or Processors
US8005098B2 (en) * 2008-09-05 2011-08-23 Cisco Technology, Inc. Load balancing across multiple network address translation (NAT) instances and/or processors
CN102273238A (zh) * 2008-12-31 2011-12-07 北方电讯网络有限公司 创建订户装置的全局唯一标识符
EP2371154A1 (en) * 2008-12-31 2011-10-05 Nortel Networks Limited Creating a globally unique indentifier of a subscriber device
EP2371154A4 (en) * 2008-12-31 2012-08-22 Nortel Networks Ltd CREATING A GLOBALLY UNIQUE IDENTIFIER OF A SUBSCRIBER DEVICE
US8811988B2 (en) 2008-12-31 2014-08-19 Apple Inc. Dynamically creating a globally unique identified of a subscriber device based on an identified of an aggregation device and identification information of the subscriber device for circuit-switched and packet-switched communication systems
KR101503569B1 (ko) 2008-12-31 2015-03-17 애플 인크. 가입자 장치의 전역 고유 식별자의 생성
US20190215300A1 (en) * 2018-01-09 2019-07-11 Circle Media Labs Inc. Devices, networks, storage media, and methods for identifying client devices across a network address translation border

Also Published As

Publication number Publication date
KR100935121B1 (ko) 2010-01-06
HK1067476A1 (en) 2005-04-08
DE60211657T2 (de) 2007-01-11
NO20033676L (no) 2003-10-16
CA2704835A1 (en) 2002-09-12
JP2008136243A (ja) 2008-06-12
EP1362462B1 (en) 2006-05-24
TW558891B (en) 2003-10-21
US20070025366A1 (en) 2007-02-01
WO2002071718A3 (en) 2003-02-06
DE60211657D1 (de) 2006-06-29
CN101605320A (zh) 2009-12-16
US20090238145A1 (en) 2009-09-24
US7573890B2 (en) 2009-08-11
KR20070086200A (ko) 2007-08-27
TW200405705A (en) 2004-04-01
TWI272809B (en) 2007-02-01
CN100505739C (zh) 2009-06-24
CN101600194A (zh) 2009-12-09
US8792323B2 (en) 2014-07-29
AR032817A1 (es) 2003-11-26
ES2262783T3 (es) 2006-12-01
ATE327627T1 (de) 2006-06-15
KR100974256B1 (ko) 2010-08-06
KR20080025755A (ko) 2008-03-21
CA2438929C (en) 2010-07-20
KR20080078041A (ko) 2008-08-26
EP1701507A1 (en) 2006-09-13
JP2004530327A (ja) 2004-09-30
KR100914697B1 (ko) 2009-08-28
KR20070102575A (ko) 2007-10-18
EP1362462A2 (en) 2003-11-19
CN1511404A (zh) 2004-07-07
JP5042874B2 (ja) 2012-10-03
US20020154638A1 (en) 2002-10-24
US20130142167A1 (en) 2013-06-06
EP1701507B1 (en) 2012-09-26
NO20033676D0 (no) 2003-08-19
WO2002071718A2 (en) 2002-09-12
KR100787085B1 (ko) 2007-12-21
CN101600194B (zh) 2013-05-01
CA2438929A1 (en) 2002-09-12
AU2002244005A1 (en) 2002-09-19
US7136389B2 (en) 2006-11-14
KR20090039805A (ko) 2009-04-22
MXPA03007522A (es) 2003-12-04
US8213385B2 (en) 2012-07-03

Similar Documents

Publication Publication Date Title
US20020055971A1 (en) Method and system for a low-overhead mobility management protocol in the internet protocol layer
US8005093B2 (en) Providing connection between networks using different protocols
JP2008136243A6 (ja) インターネットプロトコルレイヤーにおける低オーバーヘッド移動度管理プロトコルのための方法およびシステム
US20040184465A1 (en) Mobile IP communication system using dual stack transition mechanism and method thereof
US8369293B2 (en) Mobile router, home agent, and terminal position management method
JP4426580B2 (ja) ２つのネットワークを含む電気通信システム
RU2417556C2 (ru) Система и способ для маршрутизации и поддержки системы доменных имен мобильного узла
US7706327B2 (en) Mobile communication system and mobile communication terminal
US20020154613A1 (en) Method and system for a low-overhead mobility management protocol in the internet protocol layer
JP4425757B2 (ja) モバイルネットワークシステム
KR100789797B1 (ko) 인터넷 프로토콜 층 안에서의 낮은-오버헤드 이동성 관리프로토콜을 위한 방법 및 시스템
KR20050050455A (ko) 프리픽스 위임 프로토콜을 이용한 경로 최적화 방법

Legal Events

Date Code Title Description
AS Assignment

Owner name: INTERDIGITAL TECHNOLOGY CORPORATION, DELAWARE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SHAHRIER, SHARIF M.;REEL/FRAME:012402/0432

Effective date: 20011218

AS Assignment

Owner name: INTERDIGITAL TECHNOLOGY CORPORATION, DELAWARE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SHAHRIER, SHARIF M.;CHITRAPU, PRABHAKAR R.;REEL/FRAME:012505/0967

Effective date: 20020306

STCB Information on status: application discontinuation

Free format text: EXPRESSLY ABANDONED -- DURING EXAMINATION