WO2007046597A1 - Procede de support du protocole neighbor discovery ipv6 dans un reseau sans fil a bande large oriente point a point - Google Patents

Procede de support du protocole neighbor discovery ipv6 dans un reseau sans fil a bande large oriente point a point Download PDF

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Publication number
WO2007046597A1
WO2007046597A1 PCT/KR2006/004116 KR2006004116W WO2007046597A1 WO 2007046597 A1 WO2007046597 A1 WO 2007046597A1 KR 2006004116 W KR2006004116 W KR 2006004116W WO 2007046597 A1 WO2007046597 A1 WO 2007046597A1
Authority
WO
WIPO (PCT)
Prior art keywords
neighbor discovery
discovery message
wireless network
broadband wireless
address
Prior art date
Application number
PCT/KR2006/004116
Other languages
English (en)
Inventor
Hong-Seok Jeon
Jung-Hoon Jee
Jong-Hwa Yi
Original Assignee
Electronics And Telecommunications Research Institute
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 KR1020050124054A external-priority patent/KR100656378B1/ko
Application filed by Electronics And Telecommunications Research Institute filed Critical Electronics And Telecommunications Research Institute
Priority to US12/090,346 priority Critical patent/US20080320165A1/en
Priority to JP2008535455A priority patent/JP4686609B2/ja
Publication of WO2007046597A1 publication Critical patent/WO2007046597A1/fr

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Classifications

    • 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
    • H04L61/10—Mapping addresses of different types
    • H04L61/103—Mapping addresses of different types across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/167—Adaptation for transition between two IP versions, e.g. between IPv4 and IPv6
    • 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
    • H04L2101/618—Details of network addresses
    • H04L2101/659—Internet protocol version 6 [IPv6] addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • 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
    • 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 for supporting Internet Protocol version 6
  • IPv6 Neighbor Discovery and more particularly, to a method and system for supporting IPv6 Neighbor Discovery in a point-to-point oriented broadband wireless network.
  • the proposed method can transmit IPv6 Neighbor Discovery messages and support multicast transmission of the messages where hosts in the point-to-point oriented broadband wireless network share one or multiple prefixes.
  • Patents and Trademark Office (2004-0233907) relates to a tunnel for multicast data transmission, the tunnel formed between an Internet Protocol (IP) router (i.e., gateway GPRS support node, GGSN) and a serving node in a telecommunication network (i.e., service GPRS support node, SGSN) to provide a multicast service in a point-to-point oriented telecommunication network.
  • IP Internet Protocol
  • GGSN gateway GPRS support node
  • SGSN serving node in a telecommunication network
  • the current invention is effective in providing a method of generating a multicast tree in a point-to-point oriented network.
  • an access network distributes a channel for multicast service transmission between the access network and a subscriber station using a signaling conversation between subscriber stations that belong to the access network and a multicast group. Disclosure of Invention
  • the present invention provides a method and system for supporting Internet
  • IPv6 Protocol version 6 Neighbor Discovery in a point-to-point oriented broadband wireless network.
  • the proposed method can transmit IPv6 Neighbor Discovery messages and support multicast transmission of the messages where hosts in the point- to-point broadband wireless network share one or multiple prefixes.
  • IPv6 Internet Protocol version 6
  • a method of supporting Internet Protocol version 6 (IPv6) Neighbor Discovery in a broadband wireless network having a point-to-point link between a subscriber station and a base station including: an access router in the broadband wireless network receiving messages from a first subscriber station in the broadband wireless network; the access router detecting IPv6 Neighbor Discovery messages from the received messages; and the access router relaying the IPv6 Neighbor Discovery messages to a second subscriber station in the broadband wireless network.
  • IPv6 Internet Protocol version 6
  • a method of supporting IPv6 Neighbor Discovery in a broadband wireless network having a point- to-point link between a subscriber station and a base station including: a base station in the broadband wireless network receiving messages from a first subscriber station in the broadband wireless network; the base station detecting IPv6 Neighbor Discovery messages from the received messages; and the base station relaying the IPv6 Neighbor Discovery messages to a second subscriber station in the broadband wireless network.
  • an IPv6 Neighbor Discovery protocol can be used without any problem where hosts in a point-to-point oriented broadband wireless network share one or multiple prefixes, such as WiMax, WiBro, IEEE 802.16(e).
  • a conventional IPv6 Neighbor Discovery method is not required to be modified.
  • the present invention provides a multicast service in a broadband wireless network where a multicast service of IP data is not provided.
  • IPv6 Neighbor Discovery is possible, but also transmitting data having another link-local scope multicast address as a destination address is possible in a broadband wireless network.
  • FlG. 1 is a diagram illustrating a structure of a broadband wireless network according to an embodiment of the present invention, wherein a network subnet consists of an access router and a plurality of base stations;
  • FlG. 2 is a diagram illustrating a structure of a broadband wireless network according to another embodiment of the present invention, wherein a network subnet consists of an access router and a single base station;
  • FlG. 3 is a diagram for explaining a method and system for supporting IPv6
  • FlG. 4 is a diagram for explaining a method and system for supporting IPv6
  • Neighbor Discovery in a point-to-point oriented broadband wireless network using a MEP-MU according to another embodiment of the present invention.
  • the present invention relates to structures and methods for supporting a conventional Internet Protocol version 6 (IPv6) Neighbor Discovery transmission where hosts in a point-to-point oriented broadband wireless network share one or multiple prefixes.
  • IPv6 Internet Protocol version 6
  • a base station hereinafter, referred to as 'BS'
  • a subscriber station hereinafter, referred to as 'SS'
  • the point-to-point link limits an IPv6 Neighbor Discovery message from one SS to be transmitted directly to other SSs.
  • an access router hereinafter, referred to as 'AR'
  • IPv6 determines neighboring IP node by performing a longest prefix match against the assigned prefix list. Accordingly, when SSs under an AR share same prefix, all the SSs can be neighboring hosts to each other. Due to the different definitions of a neighboring host as described above, problems may occur while transmitting IPv6 Neighbor Discovery messages to neighboring hosts.
  • IPv6 Neighbor Discovery messages are relayed by AR (or BS) in order to be transmitted to neighboring SSs and multicast transmission of the IPv6 Neighbor Discovery messages is emulated by setting up a common connection to all SSs or repeatedly unicasting.
  • a method of relaying IPv6 Neighbor Discovery messages is to define a Multicast Relay Part (hereinafter, referred to as 'MRP') in order to receive IPv6 Neighbor Discovery messages and forward the IPv6 Neighbor Discovery messages.
  • Data to be relayed by MRP are IPv6 Neighbor Discovery messages having a link- local scope multicast address as the destination address. Accordingly, a method of selecting the IPv6 Neighbor Discovery messages is required. In the current embodiment of the present invention, the selecting methods in case of IPv6 over Ethernet and IPv6 are as follows.
  • Neighbor Discovery messages in a point-to-point oriented broadband wireless network is to define a Multicast Emulation Part (hereinafter, referred to as 'MEP) in order to transmit multicast data in the wireless network.
  • 'MEP Multicast Emulation Part
  • Examples of the method include a MEP-Common Connection ID (hereinafter, referred to as 'MEP-CCID') method which the MEP assigns a special connection ID (hereinafter, referred to as 'CID') for the link-local scope multicast data and a MEP-Multi Unicast (hereinafter, referred to as 'MEP-MU') method which uses replicated unicast.
  • a special CID is assigned for the link-local scope multicast data transmission. All SSs under a same BS generate the special CID in common, thereby called a common CID (CCID). Data transmitted via the CCID can be received by all SSs.
  • CCID common CID
  • a MEP-CCID function is added on the BS and the SS.
  • a CCID generating method may use the same method of generating MBS-CID.
  • MRP on an AR or a BS
  • data having an Ethernet destination address starting with '33-33' when IPv6 over Ethernet is supported in a broadband wireless network or data having an IPv6 destination address starting with 'FF02' when only IPv6 is supported in a broadband wireless network are mapped with the CCID.
  • the mapping information can be generated while generating the CCID.
  • an IPv6 Neighbor Discovery message is transmitted to corresponding SSs using replicated unicast. It can be achieved by managing information on SSs which need to receive the IPv6 Neighbor Discovery message.
  • the MEP-MU method of transmitting an IPv6 Neighbor Discovery message includes the following processes. First, an MEP-MU on the SS generates a its own solicited-node multicast address using the last 24 bits of its own interface identifier (IEEE EUI-64 address). Seconds, the MEP-MU on the SS transmits the information on the generated solicited-node multicast address and its own link-local address to a MEP-MU on the AR.
  • the link-local address of the SS is an address not yet proven to be unique by a Duplicate Address Detection (hereinafter, referred to as 'DAD') method.
  • the MEP-MU on the AR manages a table mapping the solicited-node multicast address and the corresponding link-local address based on the received information. The uniqueness of the link-local address can be proved using the table without performing the DAD method. If the link-local address is not unique, following processes are not performed.
  • the MRP on the AR determines an IPv6 Neighbor Discovery message that is to be relayed.
  • the MRP on the AR transmits the IPv6 Neighbor Discovery message to all SSs by replicated unicast after changing an IP destination address of the IPv6 Neighbor Discovery message to a link-local address of each SSs based on the table when the IP destination address is a link-local all node multicast address. Also, when the IP destination address is a solicited-node multicast address, a link-local address of the solicited-node multicast address is searched using the table. Then the IP destination address is changed to the searched link-local address in order to transmit the IPv6 Neighbor Discovery message to corresponding SSs by replicated unicast.
  • a conventional IPv6 Neighbor Discovery message transmission can be performed where hosts in the point-to-point oriented broadband wireless network share one or multiple prefixes.
  • FIG. 1 is a diagram illustrating a structure of a broadband wireless network according to an embodiment of the present invention, wherein an AR locates several BSs into the same network subnet.
  • an MRP in the AR receives an IPv6 Neighbor Discovery message from a SS and relays the IPv6 Neighbor Discovery message to other SSs through each BS.
  • FIG. 2 is a diagram illustrating a structure of a broadband wireless network according to another embodiment of the present invention, wherein an AR locates each BS into a separate network subnet.
  • an MRP in the AR or BS receives an IPv6 Neighbor Discovery message from a SS and relays the IPv6 Neighbor Discovery message to other SSs under the same BS.
  • FIG. 3 is a diagram for explaining a method and system for supporting IPv6
  • FIG. 3 there are two SSs, i.e. SSl and SS2, and an AR including an MRP.
  • MEP-CCIDs on SS 1 and SS2 send a message (CCID_Req message) to a BS in order to request a CCID in operation 1.
  • a MEP-CCID on the BS generates a CCID mapping table after receiving the CCID_Req message in operation 2.
  • the CCID mapping table has mapping information of data having an Ethernet destination address starting with '33-33' and the CCID.
  • the CCID mapping table has mapping information of data having an IPv6 destination address starting with 'FF02' and the CCID.
  • the MEP-CCID of the BS sends a reply (CCID_Rep message) to SSl and SS2 to assign the CCID in operation 3.
  • the CCID may be assigned by BS without the CCID_Req message from SS.
  • SSl sends an IPv6 Neighbor Discovery message
  • the IPv6 Neighbor Discovery message is transmitted to the AR through the BS in operation 4.
  • the transmitted IPv6 Neighbor Discovery message arriving at the lower layer of the AR is provided to an MRP of the AR before being transmitted to the IPv6 layer of the AR in operation 5.
  • the MRP of the AR selects data to be relayed among data coming from the lower layer in operation 6.
  • IPv6 Neighbor Discovery messages having a link-local scope multicast address as a destination address.
  • the MRP of the AR delivers the data to the IPv6 layer and at the same time, copies the data in order to forward the data to the network in operation 7.
  • the copied IPv6 Neighbor Discovery messages are transmitted through the CCID by referring the CCID mapping table in operation 8. Accordingly, all SSs allotted with the CCID receive the IPv6 Neighbor Discovery message in operation 9.
  • FIG. 4 is a diagram for explaining a method and system for supporting IPv6
  • FIG. 4 there are two SSs, i.e. SSl and SS2, and an AR including an MRP.
  • MEP-MUs on SS 1 and SS2 generate their own solicited-node multicast addresses using the last 24 bits from their own interface identifier (IEEE EUI-64 address) in operation 1.
  • the MEP-MUs on SSl and SS2 transmit the information on the generated solicited-node multicast addresses and their own link-local addresses to an MEP-MU on the AR through a notify message in operation 2.
  • the link-local addresses are addresses not yet proven to be unique using a DAD method.
  • the MEP-MU on the AR manages a table mapping the solicited-node multicast address and the corresponding link-local address based on the received information in operation 3.
  • the uniqueness of the link-local address can be proved using the table without performing the DAD method. If the link-local address is not unique, the following operations are not performed.
  • the IPv6 Neighbor Discovery message is transmitted to the AR through the BS in operation 4.
  • the transmitted IPv6 Neighbor Discovery message arriving at the lower layer of the AR is provided to an MRP of the AR before being transmitted to the IPv6 layer of the AR in operation 5.
  • the MRP of the AR selects data to be relayed among data coming from the lower layer in operation 6.
  • Data that needs to be relayed among data coming from the lower layer are IPv6 Neighbor Discovery messages having a link-local scope multicast address as a destination address. There are two cases in selecting data.
  • IPv6 Neighbor Discovery message When an IP destination address of the IPv6 Neighbor Discovery message is a link-local all node multicast address, the IP destination address is changed to the link-local address of each SSs based on the table.
  • IP destination address of the IPv6 Neighbor Discovery message is the solicited-node multicast address, a link-local address of the corresponding solicited- node multicast address is searched using the table, and then the IP destination address is changed to the searched link-local address.
  • the IPv6 Neighbor Discovery message with the changed IP destination address is transmitted to SSl and SS2 by replicated unicast in operation 8.
  • FIGS. 3 and 4 are described when an MRP is in an AR, it is well known to one of ordinary skill in the art that a multicast transmission when an MRP is in a BS can be applied referring to FIGS. 3 and 4. Accordingly, detailed descriptions thereof will be omitted.
  • the present invention can also be embodied as computer readable codes on a computer readable recording medium.
  • the computer readable recording medium is any data storage device that can store data which can be thereafter read by a computer system. Examples of the computer readable recording medium include read-only memory (ROM), random-access memory (RAM), CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, and carrier waves (such as data transmission through the Internet).
  • ROM read-only memory
  • RAM random-access memory
  • CD-ROMs compact discs
  • magnetic tapes magnetic tapes
  • floppy disks optical data storage devices
  • carrier waves such as data transmission through the Internet
  • carrier waves such as data transmission through the Internet
  • the computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. Also, functional programs, codes, and code segments which embody the present invention are obvious to programmers in the related art.

Abstract

L'invention concerne un procédé et un système de support du protocole Neighbor Discovery IPv6 dans un réseau sans fil à bande large orienté point à point. Le procédé comprend la réception par un routeur d'accès du réseau sans fil à bande large d'un message d'une première station d'abonné du réseau sans fil à bande large, le routeur d'accès détectant ensuite un message du protocole Neighbor Discovery dans le message reçu, puis relayant le message du protocole Neighbor Discovery à une seconde station d'abonné du réseau sans fil à bande large. Le procédé assure le support du protocole Neighbor Discovery IPv6 dans lequel les hôtes du réseau sans fil à bande large orienté point à point partagent un ou plusieurs préfixes.
PCT/KR2006/004116 2005-10-15 2006-10-13 Procede de support du protocole neighbor discovery ipv6 dans un reseau sans fil a bande large oriente point a point WO2007046597A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/090,346 US20080320165A1 (en) 2005-10-15 2006-10-13 Method for Supporting Ipv6 Neighbor Discovery in Point-To-Point Oriented Broadband Wireless Network
JP2008535455A JP4686609B2 (ja) 2005-10-15 2006-10-13 ポイントツーポイント指向の広帯域無線ネットワークにおいてＩＰｖ６近隣者発見を支援する方法

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20050097263 2005-10-15
KR10-2005-0097263 2005-10-15
KR1020050124054A KR100656378B1 (ko) 2005-10-15 2005-12-15 단대단（Ｐｏｉｎｔ－ｔｏ－Ｐｏｉｎｔ）성격의 광대역무선 접속망에서의 ｌＰｖ６ 이웃 탐색 지원 방법 및시스템
KR10-2005-0124054 2005-12-15

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WO2007046597A1 true WO2007046597A1 (fr) 2007-04-26

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008065114A1 (fr) * 2006-11-29 2008-06-05 Nokia Corporation Support de diffusion pour systèmes mobiles
JP2009111929A (ja) * 2007-10-31 2009-05-21 Fujitsu Ltd 無線通信システムにおけるコネクション識別子の割当て方法
WO2009109141A1 (fr) * 2008-03-06 2009-09-11 华为技术有限公司 Procédé, appareil et système de détection de l'activité d'une session ipv6
US8050196B2 (en) 2009-07-09 2011-11-01 Itt Manufacturing Enterprises, Inc. Method and apparatus for controlling packet transmissions within wireless networks to enhance network formation
WO2012100494A1 (fr) * 2011-01-27 2012-08-02 中兴通讯股份有限公司 Procédé et appareil destinés à améliorer la sécurité de la recherche pour la découverte du voisinage
GB2503508A (en) * 2012-06-29 2014-01-01 Renesas Mobile Corp Peer discovery of proximity services

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5574860A (en) * 1993-03-11 1996-11-12 Digital Equipment Corporation Method of neighbor discovery over a multiaccess nonbroadcast medium
US20040106408A1 (en) * 2001-05-02 2004-06-03 James Beasley Wireless base station neighbor discovery in a communication system, such as a system employing a short-range frequency hopping scheme
US6845091B2 (en) * 2000-03-16 2005-01-18 Sri International Mobile ad hoc extensions for the internet

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5574860A (en) * 1993-03-11 1996-11-12 Digital Equipment Corporation Method of neighbor discovery over a multiaccess nonbroadcast medium
US6845091B2 (en) * 2000-03-16 2005-01-18 Sri International Mobile ad hoc extensions for the internet
US20040106408A1 (en) * 2001-05-02 2004-06-03 James Beasley Wireless base station neighbor discovery in a communication system, such as a system employing a short-range frequency hopping scheme

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008065114A1 (fr) * 2006-11-29 2008-06-05 Nokia Corporation Support de diffusion pour systèmes mobiles
US7715389B2 (en) 2006-11-29 2010-05-11 Nokia Corporation Broadcast support for mobile systems
JP2009111929A (ja) * 2007-10-31 2009-05-21 Fujitsu Ltd 無線通信システムにおけるコネクション識別子の割当て方法
WO2009109141A1 (fr) * 2008-03-06 2009-09-11 华为技术有限公司 Procédé, appareil et système de détection de l'activité d'une session ipv6
US8050196B2 (en) 2009-07-09 2011-11-01 Itt Manufacturing Enterprises, Inc. Method and apparatus for controlling packet transmissions within wireless networks to enhance network formation
WO2012100494A1 (fr) * 2011-01-27 2012-08-02 中兴通讯股份有限公司 Procédé et appareil destinés à améliorer la sécurité de la recherche pour la découverte du voisinage
GB2503508A (en) * 2012-06-29 2014-01-01 Renesas Mobile Corp Peer discovery of proximity services
GB2503508B (en) * 2012-06-29 2014-09-17 Broadcom Corp Apparatus and method for peer discovery
US9344955B2 (en) 2012-06-29 2016-05-17 Broadcom Corporation Apparatus and method for peer discovery

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