WO2003039076A1 - Procede et appareil de transmission de paquets de donnees de multidiffusion explicite dans un reseau ip mobile - Google Patents

Procede et appareil de transmission de paquets de donnees de multidiffusion explicite dans un reseau ip mobile Download PDF

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Publication number
WO2003039076A1
WO2003039076A1 PCT/KR2001/002117 KR0102117W WO03039076A1 WO 2003039076 A1 WO2003039076 A1 WO 2003039076A1 KR 0102117 W KR0102117 W KR 0102117W WO 03039076 A1 WO03039076 A1 WO 03039076A1
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WO
WIPO (PCT)
Prior art keywords
address
data packet
explicit multicast
mobile
mobile node
Prior art date
Application number
PCT/KR2001/002117
Other languages
English (en)
Inventor
Ji-Woong Lee
Myung-Ki Shin
Original Assignee
Ktfreetel Co., Ltd.
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
Application filed by Ktfreetel Co., Ltd. filed Critical Ktfreetel Co., Ltd.
Priority to JP2003541208A priority Critical patent/JP3834037B2/ja
Publication of WO2003039076A1 publication Critical patent/WO2003039076A1/fr

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Classifications

    • 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
    • H04L45/16—Multipoint routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • 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
    • H04L61/50—Address allocation
    • H04L61/5069—Address allocation for group communication, multicast communication or broadcast communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H04W8/28—Number portability ; Network address portability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/604—Address structures or formats
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • 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
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]

Definitions

  • the present invention relates to a method and an apparatus for transmitting explicit
  • Mobile IP means that a terminal or node regularly connecting to a specific network
  • a home network temporarily connects to another network (for example,
  • a mobile node is a terminal or router changing a connection point of a network
  • the mobile node has to register at a home agent located in the home network, and a foreign
  • agent is located in a foreign network for receiving continuously the IP packet when the
  • the mobile node reports a present connection point and a care-of address to the home agent and the foreign agent.
  • the care-of address is called a foreign agent care-of address
  • care-of address is called a co-located care-of address.
  • the home agent monitors traffic of the home network, determines an IP packet has
  • the home agent transmits the extracted IP packet to the mobile node
  • the mobile IP is standardized by IETF (Internet Engineering Task
  • Fig. 1 is a schematic view for illustrating a mobile IP service in Internet version 4,
  • Fig. 2 is a schematic view for illustrating a mobile IP service in Internet version 6.
  • the first mobile node 100-1 is allotted a foreign agent
  • care-of address according to router information of a foreign agent 110 located in the foreign network.
  • the first mobile node 100-1 registers the foreign agent care-of address
  • a second mobile node 100-2 is allotted an address according to
  • DHCP Dynamic Host Configuration Protocol
  • the DHCP server assigns an IP address to a certain node for connecting to the
  • the second mobile node 100-2 registers the co-located care-of address at the home
  • the home agent 120 determines a location of the
  • the home agent 120 determines a care-of address of the first mobile node 100-1 or
  • the second mobile node 100-2 transmits the received data packet to the registered
  • the foreign agent 110 removes tunnel information of the data packet received by de-capsulation, and then transmits the data packet to the first mobile node 100-
  • the second mobile node 100-2 determines the data packet
  • the second mobile node 100-2 has a function for removing the tunnel information
  • the foreign agent 110 is utilized as a gateway router.
  • the binding function is equal to the registration function in Internet version 4.
  • Internet supports the binding function for linking the co-located care-of address to a home
  • the first method is when the home agent 210 receives a data packet from the
  • correspondent node 220 determines the co-located care-of address of the first mobile
  • the home agent 210 transmits the data packet to the co-located care-of
  • mobile node 200-1 or the second mobile node 200-2 having
  • the co-located care-of address determines the data packet received from the correspondent
  • the second method is when the correspondent node 220 transmits a data packet
  • correspondent node 220 having a binding function can determine the co-located
  • the data packet received from the correspondent node 220 is transmitted directly
  • a multicast service transmits a data packet to a plurality of receivers connected to a network that can reduce a transmission bandwidth and increase efficiency of
  • An Internet multicast technique includes a host group model multicast based on an
  • RFC 112 and an explicit multicast is based on a draft-oomx-xcast-basic-spec-xx.txt.
  • a service member transmits a join signal for
  • a highest grade router memorizes a link connected with a low grade router that
  • the highest grade router reproduces data packets in the same number of the highest grade router.
  • the host group multicast service needs preceding
  • the disadvantage of the host group multicast service is that the forwarding
  • link of the join signal should be memorized by group address.
  • FIG. 3 is a schematic view for illustrating an explicit multicast service
  • Fig. 4e are schematic views for illustrating explicit multicast data packets in Internet
  • FIG. 5a to Fig. 5b are schematic views for illustrating explicit multicast data
  • a service offer 300 directly receives a join signal for
  • the service offer 300 determines a service member for offering the service
  • a destination address field of the first data packet comprises an
  • 300 using the service offer terminal 320 comprises an Internet packet header 400, an
  • the Internet packet header 400 has a sender address field 402 and a link local multicast address field 404.
  • address field 404 are composed of 32bits, respectively.
  • 404 is an address for distinguishing an explicit multicast from other multicasts.
  • the link local multicast address is one among the multicast group address
  • the explicit multicast header 400 has an Internet address field 412 of a first
  • an Internet address field 414 of a second terminal an Internet address field 414 of a second terminal, and an Internet address field
  • a first router 330 determines next hops of the first data packet according to the
  • the first router 330 generates a second data packet and a third data
  • the second service member 310-2 comprises a sender address field 430
  • the sender address field 430 and the link local multicast address 432 are in an Internet packet header.
  • address field 436 of the second terminal are in an explicit multicast header.
  • service member 310-3 comprises a sender address field 440, a link local multicast address
  • the sender address field 440 and the link local multicast address field 442 are in
  • the Internet address field 444 of the third terminal is in an
  • a second router 340 determines next hops of the first data packet according to the
  • member 310-1 comprises a sender address field 450, a link local multicast address field
  • the sender address field 450 and the link local multicast address field 452 are in
  • terminal is in an explicit header.
  • the fifth data packet being transmitted to the second service member 310-2 comprises a sender address field 460, a link local multicast address
  • the second router 340 transmits the fourth data packet of Fig. 4d to the first
  • the third router 350 transmits the third data packet to the third terminal 360-3
  • the data packets in Internet version 6 comprise an Internet packet header
  • the Internet packet header comprises a routing extension header.
  • offer 300 using the service offer terminal 320 comprises a sender address field 500, a link
  • a routing extension header has the Internet address field 504 of the first terminal,
  • an Internet packet header has the sender address field 500, the link local
  • terminal 360-1 and the second terminal 360-2 is identical to that of the first data packet in
  • Fig. 5a in addition to an Internet address field 520 of the first terminal and an Internet
  • 360-3 is identical to that of the first data packet in Fig. 5 a, in addition to an Internet address
  • terminal 360-1 is identical to that of the first data packet in Fig. 5a, in addition to an
  • the explicit multicast service in the mobile IP network has the
  • the home agent abandons a data packet having a link local multicast
  • the data packet is transmitted to the home network
  • an object of the present invention is to provide a method and an
  • apparatus for explicit multicast service in mobile IP network for capsulizing an explicit
  • multicast data packet in mobile IP network comprising the steps of:
  • the connected in the mobile IP network has a binding function, the correspondent node .
  • multicast data packet being transmitted to a plurality of mobile nodes in a mobile IP
  • the explicit data packet comprising: a first Internet packet header having a first
  • first explicit multicast data packet is recorded and a first link local multicast address field
  • multicast data packet are recorded and a second link local multicast address field, and a
  • hop is recorded and a data field.
  • a signal having an explicit multicast data packet being transmitted from a correspondent node to a plurality of
  • the explicit multicast data packet comprising an Internet packet header; and a data field
  • the Internet packet header has a sender address field, a link local multicast address
  • Fig. 1 is a schematic view for illustrating a mobile IP service in Internet version 4.
  • Fig. 2 is a schematic view for illustrating a mobile IP service in Internet version 6.
  • Fig. 3 is a schematic view for illustrating an explicit multicast service.
  • Fig. 4a to Fig. 4e are schematic views for illustrating explicit multicast data
  • Fig. 5a to Fig. 5b are schematic views for illustrating explicit multicast data
  • Fig. 6 is a schematic view for illustrating an explicit multicast service in Internet
  • Fig. 7a to Fig. 7g are schematic views for illustrating explicit multicast data
  • Fig. 8 is a flow chart for illustrating an explicit multicast service in Internet
  • Fig. 9 is a schematic view for illustrating an explicit multicast service in Internet
  • Fig 10a to Fig lOg are schematic views for illustrating explicit multicast data
  • Fig .11 is a flow chart for illustrating an explicit multicast service in Internet
  • Fig. 12 is a schematic view for illustrating an apparatus for an explicit multicast
  • Fig. 13a to Fig. 13g are schematic views for illustrating explicit multicast data
  • correspondent node 610 first router
  • 620-1,620-2,620-3,620-4 first mobile node to fourth mobile node 630 : home agent 640 : second router
  • Fig. 6 is a schematic view for illustrating an explicit multicast service in Internet
  • Fig. 7g are schematic views for illustrating explicit multicast data packets in Internet
  • Internet version 4 comprises an Internet packet header, an explicit multicast header, and a
  • the explicit multicast header has a receiver address field where a receiver
  • a correspondent node 600 a first router 610, a first mobile node to a fourth mobile node 620-1,620-2,620-
  • the correspondent node is an Internet node for Internet communication with the correspondent node
  • the home agent 630 is a router for determining connection points of the first
  • the foreign agent 650 is a router for routing service to the third mobile node 620-
  • the second router 640 is a router for transmitting an explicit multicast data packet
  • node 620-2 node 620-2.
  • the first mobile node 620-1 and the second mobile node 620-2 are the correspondent node 600, the first mobile node 620-1 and the second mobile node 620-2.
  • the correspondent node 600 generates a first explicit multicast data
  • correspondent node 600 does not know that the first mobile node to the fourth mobile node
  • 620-1,620-2,620-3,620-4 move from the home network to the foreign network.
  • the first explicit multicast data packet has an Internet packet
  • the Internet packet header 700 includes a sender address field 702 where an
  • a link local multicast address especially defined for distinguishing an
  • a router recognizes a received data packet having the link local multicast address
  • the explicit multicast header 710 includes a receiver address field where a
  • receiver address for receiving the explicit data packet from the correspondent node 600 is
  • the receiver address includes a home network address of the first mobile node
  • the third mobile node 716 and a home network address of the fourth mobile node 718.
  • the home network addresses are Internet addresses allotted to the first mobile
  • the home agent 630 When the home agent 630 receives the first explicit multicast data packet, the
  • home agent 630 determines care-of addresses of the first mobile node to the fourth mobile
  • the first mobile node and the second mobile node 620-1,620-2 have co-located
  • the home agent 630 generates a second explicit multicast data packet for
  • the home agent 630 generates the second explicit multicast data packet
  • multicast data packet includes the home network address of the first mobile node and the
  • an Internet packet header 734 of the second explicit multicast data packet is also included.
  • An Internet packet header 737 of the second explicit multicast data packet includes
  • a sender address field 738 where a home agent address is recorded and a link local
  • the home agent 630 generates the third explicit multicast data packet according to capsulizing an explicit multicast data packet having a first explicit multicast header
  • the fourth mobile node 620-4 are recorded by a second explicit multicast header where the
  • multicast data packet includes the home network address of the third mobile node and the
  • an Internet packet header 744 of the third explicit multicast data packet is also included.
  • sender address field 748 where a home agent address is recorded and a link local
  • the home agent 630 transmits the second explicit multicast data packet
  • home agent 630 transmits the third explicit multicast data packet to the
  • the second router 640 determines the next hops of the second explicit multicast
  • the second router 640 generates a fourth explicit multicast data packet and a
  • multicast data packet includes the home network address of the first mobile node, and a
  • second explicit multicast header 752 includes the co-located care-of address of the first
  • a second Internet packet header 757 includes a sender address field 758 where the home agent address is recorded and a link
  • packet includes the home network address of the second mobile node, and a second
  • explicit multicast header 762 of the fifth multicast data packet includes the co-located care-
  • a first Internet packet header 764 includes a sender address field 765 where
  • a second Internet packet header 767 includes a sender address field 768
  • the second router 640 transmits the fourth explicit multicast data packet to the
  • the second router 640 transmits the fifth explicit multicast data packet to the
  • the first mobile node 620-1 and the second mobile node 620-2 confirm the
  • the foreign agent 650 determines the next hops which are the
  • the foreign agent 650 removes the second explicit multicast header 742 and the
  • multicast data packet includes the home network address of the third mobile node.
  • multicast data packet being transmitted to the fourth mobile node 620-4 includes the home
  • a first Internet packet header 782 of the seventh explicit multicast data packet includes a sender address field 784 where the Internet address of the correspondent
  • Fig. 8 is a flow chart for illustrating an explicit multicast service in Internet
  • the home agent 630 receives the first explicit multicast data packet
  • the first explicit multicast data packet has the Internet packet header 700, the
  • the fourth mobile node 620-1,620-2,620-3,620-4 are recorded respectively.
  • the home agent 630 determines the care-of addresses of the first mobile
  • 1,620-2,620-3,620-4 are comprised of the co-located care-of address and the foreign agent
  • the home agent 630 determines the next hops for transmitting the first
  • the determined next hops are the second router 640 and the foreign agent 650.
  • the home agent 630 generates an explicit multicast data packet having the
  • the home agent 630 generates an explicit multicast data packet having the
  • the home agent 630 generates an explicit multicast data packet having the
  • fourth mobile node 620-4 as receiver address for transmitting the first explicit multicast
  • the home agent 630 generates an explicit multicast header having the
  • the home agent 630 generates the explicit multicast header having the co-
  • the home agent 630 generates the explicit multicast header having the
  • the home agent 630 transmits the second explicit multicast data packet and
  • Fig. 9 is a schematic view for illustrating an explicit multicast service in Internet
  • Fig lOg are schematic views for illustrating explicit multicast data packets in Internet
  • Internet version ⁇ comprises an Internet packet header having a routing extension header
  • correspondent node 900 a first router 910, a first mobile node to a fourth mobile node 920-
  • 1,920-2,920-3,920-4, a second router 930, and a third router 940 1,920-2,920-3,920-4, a second router 930, and a third router 940.
  • the correspondent node 900 is an Internet node for Internet communication with
  • the home agent 950 is a router for determining connection points of the first mobile node to the fourth mobile node 920-1,920-2,920-3,920-4 in a home network and for
  • the second router 930 is a router for transmitting an explicit multicast data packet
  • the third router 940 is a router for transmitting an explicit multicast data packet
  • node 920-1,920-2,920-3,920-4 are allotted co-located care-of addresses, and then report the
  • the correspondent node 900 generates the first explicit multicast data packet
  • the first explicit multicast data packet has an Internet packet
  • header 1000 having a sender address field 1002, a link local multicast address field 1004
  • the sender address field 1002 includes an Internet address of the correspondent
  • 1004 includes a link local multicast address for distinguishing explicit multicast.
  • field 1004 are composed of 128 bits, respectively.
  • the routing extension header 1020 includes home network address fields of the
  • node 1022, 1024, 1026,1028 include Internet addresses allotted in the home network
  • the home agent 950 determines co-located care-of addresses of the first mobile
  • the home agent 950 determines the next hops which are the second router
  • the home agent 950 generates a second explicit multicast data packet and a third
  • the home agent 950 generates the second explicit multicast data packet
  • explicit multicast data packet includes a home network address of the first mobile node
  • packet includes the routing extension header 1030, a sender address field 1033 where an Internet address of the correspondent node is recorded, and a link local multicast field 1034.
  • a second Internet packet header 1035 includes the second extension header 1031,
  • a sender address field 1036 where an address of the home agent is recorded, and a link
  • the home agent 950 generates the third explicit multicast data
  • care-of address of the fourth mobile node address are recorded.
  • the first routing extension header 1040 includes the home
  • the second routing extension header 1041 includes the co-located care-
  • the second routing extension header 1041 includes the second routing extension header 1041, a sender address field where an address of the home agent is recorded, and a link local multicast address field 1047.
  • the home agent 950 then transmits the second explicit multicast data packet to the
  • the home agent 950 transmits the third explicit multicast data packet to the
  • third router 940 by tunneling according to the co-located care-of address of the third
  • the second router 930 determines the next hops which are the first mobile node
  • the second router 930 then generates a fourth explicit multicast data packet and a
  • multicast data packet includes the home network address of the first mobile node, and a
  • second routing extension header 1051 includes the co-located care-of address of the first routing extension header
  • multicast data packet for transmitting to the second mobile node includes the home
  • a second Internet packet header 1065 includes the second routing extension
  • a sender address field 1066 where the address of the home agent is recorded
  • the second router 930 transmits the fourth explicit multicast data packet and the
  • the first mobile node 920-1 and the second mobile node 920-2 confirm the
  • the third router 940 determines the next hops of the third
  • the third router 940 generates a sixth explicit multicast data packet and the
  • multicast data packet includes the home network address of the third mobile node, while a
  • second routing extension header 1071 includes the co-located care-of address of the third
  • the first routing extension header 1070 includes the first routing extension header 1070, a sender address field 1073 where the Internet address of the correspondent node is recorded, and a link local multicast address
  • a second Internet packet header 1075 includes the second routing extension
  • header 1071 a sender address field where the address of the home agent is recorded, and a
  • multicast data packet includes the home network address of the fourth mobile node, and a
  • second routing extension header 1081 has the co-located care-of address of the fourth
  • the third router 940 transmits the sixth explicit multicast data packet to the third
  • the third router 940 transmits the seventh explicit multicast data packet to the third router 940
  • fourth mobile node 920-4 according to the co-located care-of address of the fourth mobile
  • the third mobile node 920-3 confirms the explicit multicast data packet received
  • the fourth mobile node 920-4 confirms the explicit multicast data packet
  • Fig .11 is a flow chart for illustrating an explicit multicast service in Internet
  • the home agent 950 receives the first explicit multicast data packet
  • the first explicit multicast data packet has the Internet packet header 1000 and the
  • the Internet packet header 1000 includes the sender address field where
  • addresses of the first mobile node to the fourth mobile node 920-1,920-2,920-3,920-4 are recorded.
  • the home agent 950 determines the care-of addresses of the first mobile node
  • 1,920-2,920-3,920-4 are co-located care-of addresses.
  • the home agent 950 determines next hops for transmitting the first
  • the determined next hops are the second router 930 and the third router 940.
  • the home agent 950 generates an explicit multicast data packet having home
  • the home agent 950 generates the explicit multicast data packet having
  • the second mobile node 920-2 as destination addresses for transmitting the first explicit
  • the home agent 950 generates the explicit data packet having the home network address of the third mobile node 920-3 and the home network address of the
  • fourth mobile node 920-4 as destination addresses for transmitting the first explicit
  • the home agent 950 generates an Internet packet header having a
  • routing extension header where the co-located care-of addresses of the first mobile node to
  • the home agent 950 generates the Internet packet header having the co-
  • the home agent 950 generates the Internet packet header having the co-
  • the home agent 950 transmits the second explicit multicast data
  • router 940 according to tunneling by the co-located care-of addresses of the first mobile node to the fourth mobile node 920-1,920-2,920-3,920-4.
  • Fig. 12 is a schematic view for illustrating an apparatus for an explicit multicast
  • Fig. 13a to Fig. 13g are schematic views for
  • present invention comprises a correspondent node 1200, a first router 1210, a second router
  • the correspondent node 1200 is an Internet node for Internet communication with
  • the first mobile node to the fourth mobile node 1240-1,1240-2,1240-3,1240-4 via the first router 1210.
  • node 920-1,920-2,920-3,920-4 are allotted co-located care-of addresses, and then report the
  • the second router 1220 transmits an explicit multicast data packet received from
  • the correspondent node 1200 executes a binding function for connecting home
  • the correspondent node 1200 generates a first explicit multicast data packet as
  • router 1210 because the correspondent node 1200 knows that the first mobile node to the fourth mobile node 1240-1,1240-2,1240-3,1240-4 are allotted the co-located care-of
  • the first explicit multicast data packet has an Internet
  • packet header 1300 having a sender address, a link local multicast address and a receiver's
  • the Internet packet header 1300 includes a sender address field 1302, a link local
  • the sender address field 1302 includes an Internet address of the
  • routing extension header 1320 includes a co-located care-of address list
  • the co-located care-of address list field 1322 includes co-located care-of addresses
  • the home network address list field 1324 includes home network addresses
  • the first router 1210 determines next hops which are the second router 1220 and the third router 1230 by the co-located care-of addresses of the first mobile node to the
  • the first router 1210 generates a second explicit multicast data packet and a
  • multicast data packet being transmitted to the second router 1220 includes the co-located
  • the home network address of the first mobile node the home network address of the first mobile node, and the home network
  • an Internet packet header 1332 includes the routing extension header 1330, a
  • sender address field 1334 where the Internet address of the correspondent node is recorded
  • multicast data packet being transmitted to the third router 1230 includes the co-located
  • an Internet packet header 1342 includes the routing extension header 1340, a sender address field 1344 where the Internet address of the correspondent node is recorded,
  • the second router 1220 determines the next hops which are the first mobile node
  • the second router 1220 generates a fourth explicit multicast data packet and a fifth
  • multicast data packet being transmitted to the first mobile node 1240-1 includes the co-
  • an Internet packet header 1352 of the fourth explicit multicast data packet is also included.
  • routing extension header 1350 has the routing extension header 1350, a sender address field 1354 where the Internet
  • an Internet packet header 1362 of the fifth explicit multicast data packet has
  • routing extension header 1360 a sender address field 1364 where the Internet address
  • the third router 1230 determines the next hops which are the
  • the third router 1230 generates a sixth explicit multicast data packet and a seventh
  • multicast data packet being transmitted to the third mobile node 1240-3 includes the co-
  • an Internet packet header 1372 of the sixth explicit multicast data packet is also included.
  • routing extension header 1370 includes the routing extension header 1370, a sender address field 1374 where the Internet
  • a routing extension header 1380 of the seventh explicit multicast data packet being transmitted to the fourjh mobile node 1240-4 includes the co-
  • an Internet packet header 1382 of the seventh explicit multicast data packet is also included.
  • routing extension header 1380 includes the routing extension header 1380, a sender address field 1384 where the Internet
  • the home agent capsulizes the explicit multicast
  • care-of address of the mobile node as receiver address, and then transmits the explicit
  • the advantage of the present invention is that the explicit multicast data
  • routing extension header has the home network address and the care-of address of the mobile node simultaneously.
  • the advantage of the present invention is that the explicit multicast data

Abstract

La présente invention concerne un procédé et un appareil de prestation de services de multidiffusion explicite dans un réseau IP mobile. Ledit procédé de prestation de services de multidiffusion explicite consiste à recevoir un premier paquet de données de multidiffusion explicite présentant des adresses pistes de noeuds mobiles, à déterminer les sauts suivants pour des adresses temporaires des adresses pistes répertoriées dans le premier paquet de multidiffusion explicite, à générer un deuxième paquet de données de multidiffusion explicite adressé à l'adresse piste d'un noeud mobile où les adresses temporaires peuvent être acheminées via chaque saut suivant, à générer un troisième paquet de données de multidiffusion explicite pour chaque saut suivant par encapsulation du deuxième paquet de données de multidiffusion explicite dans un en-tête de multidiffusion explicite adressé à l'adresse temporaire des adresses pistes répertoriées dans le deuxième paquet de multidiffusion explicite, à transmettre le troisième paquet de données de multidiffusion explicite au noeud mobile par routage multidiffusion explicite.
PCT/KR2001/002117 2001-11-02 2001-12-07 Procede et appareil de transmission de paquets de donnees de multidiffusion explicite dans un reseau ip mobile WO2003039076A1 (fr)

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WO2006073284A1 (fr) * 2005-01-07 2006-07-13 Samsung Electronics Co., Ltd. Appareil et procede permettant de transmettre ou de recevoir un paquet multi-utilisateur dans un systeme de communication mobile
US8842695B2 (en) 2005-01-07 2014-09-23 Samsung Electronics Co., Ltd. Apparatus and method for transmitting/receiving multiuser packet in a mobile communication system
US10057729B2 (en) 2005-01-07 2018-08-21 Samsung Electronics Co., Ltd. Apparatus and method for transmitting/receiving multiuser packet in a mobile communication system
WO2006120893A1 (fr) * 2005-05-12 2006-11-16 Matsushita Electric Industrial Co., Ltd. Procede de relais de paquet et agent domestique
JP2006319674A (ja) * 2005-05-12 2006-11-24 Matsushita Electric Ind Co Ltd パケット中継方法およびホームエージェント
JP4558577B2 (ja) * 2005-05-12 2010-10-06 パナソニック株式会社 パケット中継方法およびホームエージェント
US7948927B2 (en) 2005-05-12 2011-05-24 Panasonic Corporation Packet relay method and home agent
WO2008094730A2 (fr) * 2007-01-30 2008-08-07 Sprint Spectrum L.P. Encapsulation d'ipv6 mobile optimisée pour réseaux sans fil
WO2008094730A3 (fr) * 2007-01-30 2009-01-29 Sprint Spectrum Lp Encapsulation d'ipv6 mobile optimisée pour réseaux sans fil
US9154993B1 (en) * 2007-01-30 2015-10-06 Sprint Spectrum L.P. Mobile-IPv6 encapsulation for wireless networks
US7664880B2 (en) 2007-08-15 2010-02-16 Microsoft Corporation Lightweight address for widely-distributed ADHOC multicast groups
WO2009078565A1 (fr) * 2007-12-17 2009-06-25 Electronics And Telecommunications Research Institute Procédé pour supporter des interfaces multiples en ipv6 mobile proxy

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KR20030037128A (ko) 2003-05-12
JP3834037B2 (ja) 2006-10-18
KR100407175B1 (ko) 2003-11-28
JP2005507609A (ja) 2005-03-17

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