WO2008050795A1 - Contexte existant utilisant un procédé et mode mobile utilisé dans son procédé - Google Patents

Contexte existant utilisant un procédé et mode mobile utilisé dans son procédé Download PDF

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Publication number
WO2008050795A1
WO2008050795A1 PCT/JP2007/070710 JP2007070710W WO2008050795A1 WO 2008050795 A1 WO2008050795 A1 WO 2008050795A1 JP 2007070710 W JP2007070710 W JP 2007070710W WO 2008050795 A1 WO2008050795 A1 WO 2008050795A1
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WO
WIPO (PCT)
Prior art keywords
mobile terminal
existing
existing context
communication
context
Prior art date
Application number
PCT/JP2007/070710
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English (en)
Japanese (ja)
Inventor
Toyoki Ue
Takako Hori
Original Assignee
Panasonic Corporation
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 Panasonic Corporation filed Critical Panasonic Corporation
Publication of WO2008050795A1 publication Critical patent/WO2008050795A1/fr

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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
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • 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 of using an existing context of a mobile terminal (mopile node) that performs wireless communication and a mobile terminal used in the method, and in particular, performs wireless communication using a mopile IP (MIP: Mobile Intern et Protocol).
  • MIP Mobile Intern et Protocol
  • the present invention relates to a method of using an existing context in a mobile terminal and a mobile terminal used in the method.
  • MIP Mobile Node
  • MN Mobile Node
  • a connection is first established for the path (TR path: Triangle Route path) that passes through the home agent (HA), and then the optimal path (RO) that does not pass through the HA.
  • TR path Triangle Route path
  • RO optimal path
  • Path Establish Route Optimize path
  • QoS Quality of Service
  • QoS guarantee is first made for the new TR path established after handover from the state where QoS guarantee was made for the old RO path used before handover.
  • Non-Patent Document 1 the ability to use the QoS parameters for the old RO path so as to quickly guarantee the QoS for the new TR path is neglected.
  • Patent Document 1 Japanese Patent Laid-Open No. 2005-167388 (paragraph 0016)
  • Non-Patent Document Il U H. Chaskar, Ed, Requirements of a Quality of Service (QoS) Solution for Mobile IP ", RFC3583, September 2003
  • the present invention can reduce the amount of signaling such as QUERY for the new TR path, increase the speed and efficiency of QoS handover, and minimize the QoS interruption. It is an object of the present invention to provide an existing context usage method that can be used and a mobile terminal used in the method.
  • a plurality of access routers are connected via a communication network and configured to communicate with the access router through wireless communication.
  • the mobile terminal uses an existing context when communicating with a communication partner, and the mobile terminal uses the wireless communication method.
  • the mobile terminal Provided is a method for using an existing context, comprising: acquiring the existing context of a terminal; and performing a process for the mobile terminal to communicate with the communication partner using the acquired existing context. Is done.
  • the amount of signaling such as QUERY for the new TR path can be reduced, speeding up and efficiency of QoS handover can be realized, and instantaneous QoS interruptions can be minimized.
  • the existing context is connected between the access router and the home agent that perform communication through the wireless communication. It is a preferable aspect of the present invention that the existing QoS parameter is used in FIG. With this configuration, QoS guarantees can be quickly established.
  • the terminal when the mobile terminal has handed over from another subnet network in the step of detecting the other mobile terminal having the existing QoS parameter, the mobility It is a preferred aspect of the present invention that the terminal detects the other mobile terminal having the existing QoS parameter from the handover destination subnetwork. With this configuration, it is possible to establish QoS guarantee immediately after handover.
  • a plurality of access routers each of which constitutes a sub-network, is connected via a communication network, and is configured to communicate with the access router through wireless communication.
  • the mobile terminal is used in an existing context utilization method that uses an existing context when communicating with a communication partner, and communicates through the wireless communication.
  • a mobile terminal comprising acquisition means for acquiring a list, and processing means for performing processing for communicating with the communication partner using the acquired existing context.
  • the existing context is an existing QoS parameter used between the access router that performs communication through the wireless communication and the home agent. Is a preferred embodiment of the present invention. With this configuration, QoS guarantees can be quickly established.
  • the detecting means transfers the other mobile terminal having the existing QoS parameter to a handover destination subnetwork. Detection from This is a good mode. With this configuration, QoS guarantee can be established immediately after handover.
  • the existing context utilization method of the present invention and the mobile terminal used in the method have the above-described configuration, reduce the amount of signaling such as QUERY for the new TR path, and realize high-speed and efficient QoS failover. And can minimize QoS interruptions.
  • FIG. 1 is a diagram for explaining an example of a communication network according to an embodiment of the present invention.
  • FIG. 2 is a sequence chart showing an example of a sequence for detecting a QoS parameter in the embodiment of the present invention.
  • FIG. 3 is a sequence chart showing an example of another sequence for detecting a QoS parameter in the embodiment of the present invention.
  • FIG. 4 is a configuration diagram showing an example of a configuration of a mobile terminal according to an embodiment of the present invention.
  • FIG. 1 is a diagram for explaining an example of a communication network according to an embodiment of the present invention.
  • FIG. 2 is a sequence chart showing an example of a sequence for detecting QoS parameters in the embodiment of the present invention.
  • FIG. 3 is a sequence chart showing an example of another sequence for detecting the QoS parameter according to the embodiment of the present invention.
  • FIG. 4 is a configuration diagram showing an example of the configuration of the mobile terminal according to the embodiment of the present invention.
  • the mobile terminal (MN0) belongs to subnetwork 0, and is optimized via an AR (Access Router) (hereinafter referred to as PAR (Previous AR)) that constitutes subnetwork 0. It communicates with CN (Correspondent Node) 0, which is the communication partner, through RO path 11, which is a route.
  • AR Access Router
  • PAR Previous AR
  • NAR New AR
  • the MNO establishes a connection to the TR path 12, which is a path that passes through the HA, and then performs a process of establishing an RO path, which is an optimal path (not shown) that does not pass through the HA.
  • the QoS guarantee at this time is performed for the TR path 12 established from the QoS guarantee made for the RO path 11 used before the handover.
  • MN0 performs QoS guarantee processing for the established RO path.
  • MN0 performs signaling such as QUERY in order to guarantee QoS for TR path 12 after handover, as a result, QoS handover is delayed and QoS interruption occurs. End up. Therefore, MN0 performs the following processing so as to promptly guarantee QoS for TR path 12.
  • the detection method includes a method of detecting by inquiring of HA, and a method of detecting by NAR acting as a server as shown in Fig. 3 described later. Conceivable.
  • MN0 acquires the QoS parameters used by MN1 via NAR, and uses the acquired QoS parameters to guarantee the QoS of TR path 12 Establish.
  • MN0 acquires the QoS parameters used by MN1 via NAR, and uses the acquired QoS parameters to guarantee the QoS of TR path 12 Establish.
  • a QoS path it may be newly established using only parameters, or may be aggregated into an existing QoS path. All of the above processing can be performed partially or partially before handover.
  • MN0 performs handover with the connection established with PAR (S201).
  • MN0 establishes a tunnel connection (tunnel connection) by MIP to HA (S202).
  • MN0 sends a query to the HA to check whether the MN using the TR path using the same HA in the subnetwork 1 is! /, NA! / (S203).
  • the HA that received the query applies It is checked whether or not the MN exists (S204).
  • the HA transmits a RESPONSE including the QoS parameter of the MN (MN1) to MN0 (S205).
  • MN1 the QoS parameter of the MN
  • MN0 receives RESPONS E, MN0 sends a RESERVE requesting QoS guarantee for TR path 12 with the same QoS parameters as MN1 to HA (S206).
  • the HA establishes a QoS guarantee (RES ERVE) (S207).
  • MN0 performs handover with a connection established with PAR (S301).
  • MN0 establishes a MIP tunnel connection (tunnel connection) to the HA (S302).
  • MN0 sends a query to NAR to check whether there is any MN using TR path using the same HA in subnetwork 1 (S303).
  • the NAR that has received the query checks whether the corresponding MN exists (S304).
  • the NAR transmits a RESPONSE including the QoS parameter of the MN (MN1) to MN0 (S305).
  • MN0 Upon receiving the RESPON SE, MN0 sends a RESERVE requesting the QoS guarantee of TR path 12 with the same QoS parameters as MN1 to the HA (S 306).
  • HA establishes QoS guarantee (S307).
  • MN0 sends NOTIFY to NAR notifying that MN0 itself has a tunnel by MIP with guaranteed QoS! / (S308).
  • the NAR that has received it stores the QoS parameter information of MN0 (S309).
  • the MN 0 includes a communication unit 41, a detection unit 42, an acquisition unit 43, a processing unit 44, and a storage unit 45.
  • the communication means 41 is for communicating with an external AR, for example, an interface.
  • the communication means 41 is used to communicate with the outside.
  • the detecting means 42 detects, from the network 1 to which it belongs, a MN having an existing context between the NAR that communicates through wireless communication via the communication means 41 and the same HA as the MN0 itself. It is.
  • the context here is, for example, the QoS parameter described above. It is a parameter. Specifically, as described above, the detection is performed by inquiring and detecting the HA, or by the method in which the NAR detects as the server.
  • the acquiring unit 43 acquires the existing QoS parameter of the MN. Specifically, existing QoS parameters are acquired as in S205 shown in FIG. 2 and S305 shown in FIG.
  • the processing means 44 performs processing for communicating with CN0 using the existing QoS parameters acquired by the acquisition means 43. Specifically, as shown in S206 shown in FIG. 2 and S306 shown in FIG. 3, the QoS guarantee of TR path 12 is established using the acquired QoS parameters. Then, a new RO (not shown) is established with CN0.
  • the storage means 45 stores a control program necessary for the operation of the MN0 and information generated during processing.
  • MN0 when MN0 starts up in subnetwork 1, MN0 communicates with the TR path with guaranteed QoS via the same HA as MN0 in subnetwork 1! Whether or not is detected.
  • the detection method is the detection method described above.
  • MN0 obtains the QoS parameters used by MN1 and uses the obtained QoS parameters to guarantee QoS in TR path 12.
  • Establish. In this case, the configuration of MN0 is the same as the configuration shown in FIG. 4 described above.
  • each functional block used in the description of the above embodiment is typically realized as an LSI which is an integrated circuit. These may be individually made into one chip, or may be made into one chip so as to include a part or all of them. Here, it is sometimes called IC, system LSI, super LSI, or ultra LSI, depending on the difference in power integration.
  • the method of circuit integration is not limited to LSI, and may be realized with a dedicated circuit or a general-purpose processor. Program after LSI manufacturing FPGAs (Field Programmable Gate Arrays) that can be used, and reconfigurable processors that can reconfigure the connection and settings of circuit cells inside the LSI may be used.
  • FPGAs Field Programmable Gate Arrays
  • reconfigurable processors that can reconfigure the connection and settings of circuit cells inside the LSI may be used.
  • integrated circuit technology that replaces LSI emerges as a result of advances in semiconductor technology or other derivative technologies, it is naturally possible to integrate functional blocks using this technology. For example, biotechnology can
  • the existing context utilization method according to the present invention and the mobile terminal used in the method can reduce the amount of signaling such as QUERY for the new TR path, realize faster and more efficient QoS handover, and minimize QoS interruption.
  • the existing context usage method of mobile terminals (mopile nodes) that perform wireless communication and the mobile terminals used in that method are particularly relevant for mobile terminals that perform wireless communication using mobile Internet Protocol (Mopile IP). This is useful for the context usage method and the mobile terminal used in the method.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne une technique de prestation de procédé d'utilisation de contexte existant capable de réduire le montant de signalisation d'une REQUÊTE ou de son équivalent vers un nouveau chemin TR, de réaliser l'accélération et la haute efficacité d'un transfert QoS et de minimiser l'interruption instantanée d'un QoS. La technique se compose d'une étape dans laquelle un noeud mobile détecte un autre nœud mobile ayant un contexte existant entre un routeur d'accès pour réaliser une communication entre une communication radio et le même agent à la maison en tant que noeud mobile lui-même à partir d'un sous-réseau auquel il appartient. Dans cette étape, lorsque l'autre noeud mobile ayant le contexte existant est détecté, ce noeud mobile acquiert le contexte existant d'un autre nœud mobile et une étape dans laquelle le nœud mobile effectue un traitement de communication avec l'entité de communication en utilisant le contexte existant acquis.
PCT/JP2007/070710 2006-10-25 2007-10-24 Contexte existant utilisant un procédé et mode mobile utilisé dans son procédé WO2008050795A1 (fr)

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JP2006290550 2006-10-25
JP2006-290550 2006-10-25

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004166277A (ja) * 2002-11-08 2004-06-10 Samsung Electronics Co Ltd 無線網におけるハンドオフ方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004166277A (ja) * 2002-11-08 2004-06-10 Samsung Electronics Co Ltd 無線網におけるハンドオフ方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MOMONA M. ET AL.: "All-IP Mobile-mo Architecture no Teian (1)", INFORMATION PROCESSING SOCIETY OF JAPAN KENKYU HOKOKU 2002-MBL-21-1, 24 May 2002 (2002-05-24), pages 5, XP003022374 *

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