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WO2010010945A1 - Système de communication mobile, dispositif de transfert de trafic, et procédé et programme de transfert de trafic - Google Patents

Système de communication mobile, dispositif de transfert de trafic, et procédé et programme de transfert de trafic Download PDF

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Publication number
WO2010010945A1
WO2010010945A1 PCT/JP2009/063266 JP2009063266W WO2010010945A1 WO 2010010945 A1 WO2010010945 A1 WO 2010010945A1 JP 2009063266 W JP2009063266 W JP 2009063266W WO 2010010945 A1 WO2010010945 A1 WO 2010010945A1
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WIPO (PCT)
Prior art keywords
traffic
bearer
client
user terminal
radio access
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.)
Ceased
Application number
PCT/JP2009/063266
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English (en)
Japanese (ja)
Inventor
和彦 原崎
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NEC Corp
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NEC Corp
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Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Publication of WO2010010945A1 publication Critical patent/WO2010010945A1/fr
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    • 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
    • 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 is based on the priority claim of Japanese patent application: Japanese Patent Application No. 2008-191305 (filed on July 24, 2008), the entire contents of which are incorporated herein by reference. Shall.
  • the present invention relates to a mobile communication system, a traffic transfer apparatus, a traffic transfer method, and a program, and more particularly to a mobile communication system, a traffic transfer apparatus, and a traffic transfer that realizes IP mobility by detecting movement of a mobile terminal and managing movement on the network side.
  • the present invention relates to a method and a program.
  • Non-Patent Documents 1 and 2 In recent years, standardization of next-generation networks such as SAE (System Architecture Evolution) and All-IP NETWORK (AIPN) has been studied (see Non-Patent Documents 1 and 2).
  • SAE System Architecture Evolution
  • AIPN All-IP NETWORK
  • PMIPv6 is based on MIPv6 (Mobile IPv6; also referred to as “CMIP”), and is a method for performing movement management by detecting movement of a mobile terminal on the network side.
  • CMIP Mobile IPv6
  • PMIPv6 has an advantage that IP mobility can be realized without adding a protocol-specific function to a mobile terminal (see Non-Patent Document 3).
  • Patent Documents 1 and 2 disclose a mobile communication system using the former MIPv6.
  • Patent Documents 1 and 2 and Non-Patent Documents 1 to 3 are incorporated herein by reference.
  • the following is an analysis of the related art according to the present invention.
  • the problems of the mobile communication systems described in Non-Patent Documents 1 and 2 will be described using FIGS.
  • FIG. 5 shows a case where a local breakout from the mobile access gateway (MAG) 100 on the visited network 600 side is selected.
  • a SIP (Session Initiation Protocol) signal (broken line in FIG. 5) is also locally broken out, and the highly reliable mobile relay network 701 from the SIP server 501 in the home network 500 to the MAG 100 in the visited network 600. Instead, it goes through an unspecified network such as the Internet 700. For this reason, there is a high possibility that the reliability of the signal for controlling the voice call is impaired, or the connection service time is affected by a transmission delay or the like.
  • FIG. 6 shows a case where access via the MAG 100 on the home network 500 side is selected.
  • the SIP signal (broken line in FIG. 6) passes through the reliable mobile relay network 701
  • the voice data (the one-dot chain line in FIG. 6) always passes through the home network 500.
  • a P2P communication via the home network 500 is always performed even in a voice call with the terminal 401 in the visited network, there is an adverse effect on service quality such as voice quality degradation due to meaningless transmission delay. Concerned.
  • the mobile IP client is activated on the terminal 400 side only with the IP version of the SIP signal (broken line in FIG. 7), and the client mobile IP tunnel is established between the home agent (HA) 506 in the home network 500 and the terminal 400. 507 is established, and the SIP signal is always passed through the HA 506 of the home network 500.
  • HA home agent
  • the SIP signal is always passed through the HA 506 of the home network 500.
  • routing from the HA 506 to the client mobile IP tunnel 507 is user traffic routing addressed to the IP address of the terminal 400, there is a problem that there is a high possibility that the routing will be via an unspecified relay network.
  • a packet data network (PDN) is separated for signaling and voice packets, and a radio access bearer 300a and a radio access bearer 300b are established.
  • PDN packet data network
  • a method of using different MAGs 100 and 504 is also conceivable.
  • radio access bearers for different PDNs are always set, and mobility & bearer control is performed under different mobile anchors. Therefore, it is necessary to perform multiple mobility management and bearer control. There is a problem that it becomes complicated.
  • the present invention has been made in view of the above-described circumstances, and the object thereof is to impair the advantages of a system having a route change function on the network side represented by PMIPv6 (Proxy Mobile IPv6) It is an object of the present invention to provide a mobile communication system, a traffic transfer apparatus, a traffic transfer method, and a program that can realize traffic selection routing.
  • PMIPv6 Proxy Mobile IPv6
  • a traffic transfer comprising a proxy mobile IP client that manages the movement of the user terminal, and means (traffic transfer unit) for transferring traffic having a predetermined bearer type to the proxy mobile IP client
  • PDN packet data network
  • PDN packet data network
  • a traffic transfer method implemented in the above-described mobile communication system is provided.
  • the traffic transfer apparatus analyzes the bearer type identification of the radio access bearer established with the user terminal or the flow in the radio access bearer. Then, the traffic transfer device determines whether to use the proxy mobile IP client as a transfer destination or a local breakout based on the bearer type or flow analysis result of the radio access bearer, and controls to transfer the traffic Is done.
  • this method is associated with a specific machine that performs identification of a bearer type of a radio access bearer or a flow in the radio access bearer and performs traffic transfer control based on the result.
  • a program that is executed by a computer constituting the above-described traffic transfer apparatus.
  • This program determines whether the proxy mobile IP client is a forwarding destination according to the means (or flow analysis means) for identifying the bearer type of the radio access bearer and the bearer type (or flow analysis result) of the radio access bearer.
  • the means or flow analysis means
  • This program can be recorded on a computer-readable storage medium. That is, the present invention can be embodied as a computer program product.
  • routing according to the traffic type can be realized without adding a terminal function or complicating radio access bearer control.
  • the reason is that the network-side traffic transfer apparatus is provided with means for estimating the traffic type and means for performing routing based on the estimation result.
  • MAG 101 Bearer type determination unit
  • PMIPv6 client 110 Flow analysis unit 200
  • FIG. 1 is a diagram illustrating a configuration of a mobile communication system according to the first embodiment of the present invention.
  • a home network 500 in which a SIP server 501 and a home agent / mobile anchor point (HA / MAP) 511 are arranged, a packet data network (PDN), and a MAG 100 are arranged to provide services to terminals 400 and 401.
  • a visited network 600, the Internet 700, and a mobile relay network 701 are shown.
  • the MAG 100 includes a PMIPv6 client as described later, and implements IP mobility with the HA / MAP 511 of the home network 500 in place of the terminal 400 that does not have the PMIPv6 client. Further, the MAG 100 establishes a PMIPv6 internode tunnel 510 with high security between the home network 500 and the visited network 600 via the mobile relay network 701 in order to establish a mobility tunnel between network nodes. Furthermore, the MAG 100 according to the present embodiment further includes a bearer type determination unit, and operates as a traffic transfer device described later.
  • the terminal 400 applies IPv6 to the always-connectable IMS SIP signal (broken line in FIG. 1) and dynamically establishes voice data (one point in FIG. 1) when a voice call is actually generated. It is assumed that IPv4 is applied to the chain line.
  • a secure PMIPv6 inter-node tunnel 510 is established between the PMIPv6 client 102 of the MAG 100 of the visited network 600 and the HA / MAP 511 of the home network 500 via the mobile relay network 701. It shall be.
  • FIG. 2 is a block diagram showing a configuration example of the MAG 100 of the present embodiment.
  • a MAG 100 including a bearer type determination unit 101 and a PMIPv6 client 102 is illustrated.
  • Non-Patent Document 1 represents a state in which a default bearer 310 and a dedicated bearer 311 are established in a radio access bearer accommodated by the MAG 100 in accordance with the S5 GTP model (see Non-Patent Document 1) of the SAE architecture.
  • the bearer type determination unit 101 identifies the bearer type in the radio access bearer 300 and performs an operation of changing the traffic forwarding destination based on each bearer type, the PDN 601 and the policy for each user.
  • the bearer type determination unit 101 determines that user traffic in the default bearer 310 is signaling for IMS SIP, and transfers it to the PMIPv6 client 102.
  • the bearer type determination unit 101 determines that traffic in the Dedicated bearer 311 is voice data, and transfers the local breakout to the PDN 601.
  • the bearer type (default bearer / Dedicated bearer) described above can be identified by a tunnel ID (TEID; Tunnel Endpoint ID) given to a tunnel header of GTP (GPRS Tunneling Protocol).
  • the PMIPv6 client 102 is a PMIPv6 client that operates on behalf of the terminal 400 that does not have a PMIPv6 client.
  • the PMIPv6 client 102 transfers the transferred user traffic in the default bearer 310 to the SIP server 501 via the PMIPv6 inter-node tunnel 510.
  • the PMIPv6 client 102 the default bearer 310, and the Dedicated bearer 311 in FIG. 2 are given as specific examples of the present invention and are well known to those skilled in the art. Since it is not directly related to the present invention, its detailed description is omitted.
  • the terminal 400 attaches to the mobile access network 200, the terminal 400 establishes a default bearer 310 in the radio access bearer 300 for PDN 601 access, and assigns it to the IPv6 SIP signal for IMS (broken line in FIG. 1).
  • the bearer type determination unit 101 determines the bearer type. Here, since the traffic is in the default bearer 310, it is determined as IMS SIP signaling, and the bearer type determination unit 101 connects the default bearer 310 and the PMIPv6 client 102.
  • the PMIPv6 client 102 establishes the PMIPv6 internode tunnel 510 with the HA / MAP 511 arranged in the user's home network 500 without passing through the PDN 601 after receiving the establishment of the default bearer 310.
  • the above-described PMIPv6 inter-node tunnel 510 has a policy of passing through the mobile relay network 701 by agreement between mobile operators. Therefore, the SIP signal can always be transmitted and received between the home network 500 and the terminal 400 via a secure network.
  • the terminal 400 establishes an IMS call with the SIP signal (broken line in FIG. 1) via the SIP server 501, the terminal 400 establishes a Dedicated bearer 311 for IPv4 voice data (dashed line in FIG. 1) communication. .
  • the bearer type determination unit 101 transfers the traffic in the Dedicated bearer 311 to the PDN 601 and realizes a local breakout of voice data.
  • the bearer type determination unit 101 transfers the received traffic to the default bearer 310 or the dedicated bearer 311. At that time, the bearer type determination unit 101 performs a rule check on a packet to be received via PMIPv6 (IPv6) and a packet to be received via PDN 601 (IPv4), and has a function of preventing reception of a packet in violation of the rule. Shall have.
  • the proxy mobile IP (PMIP) is applied to the traffic via the home network 500 such as the SIP signal without using the user packet routing logic of the client base mobile IP such as MIPv4 and MIPv6.
  • the secure mobile relay network 701 can be used by routing with inter-node routing logic between the home node and the visited node.
  • the proxy mobile IP (PMIP) is used as described above, it is not necessary to install the mobile IP function in the terminal 400, the terminal function can be simplified, and the mobile access network 200 There is also an advantage that signaling signals and data overhead between the terminal 400 and the MAG network can be reduced.
  • FIG. 3 is a diagram showing the configuration of the mobile communication system according to the second embodiment of the present invention.
  • the difference from the configuration of the first embodiment described above is that there is no bearer type in the radio access bearer 300.
  • the detailed configuration of the MAG 100 which is different from the configuration of the first embodiment, will be described in detail with reference to FIG.
  • FIG. 4 is a block diagram showing a configuration example of the MAG 100 of the present embodiment. Referring to FIG. 4, a MAG 100 including a flow analysis unit 110 and a PMIPv6 client 102 is shown.
  • the flow analysis unit 110 analyzes the user traffic in the radio access bearer 300, and changes the transfer destination of traffic based on the protocol type (IPv6 / v4) of the transfer packet obtained by the analysis, the PDN 601, and the policy for each user. Perform the action.
  • the flow analysis unit 110 determines that the IPv6 traffic is signaling for IMS SIP, and transfers it to the PMIPv6 client 102.
  • the bearer type determination unit 101 determines that the IPv4 traffic is voice data, and transfers the local breakout to the PDN 601.
  • the protocol type (IPv6 / v4) of the transfer packet can be obtained by analyzing information such as the port number of the IP packet header or the UDP header.
  • the PMIPv6 client 102 has been described as being provided in the MAG 100.
  • the PMIPv4 client 102 and a Foreign Agent (FA) may be used.
  • the present invention is based on mobile core networks SAE / EPC (System Architecture Evolution / Evolved PP) standardized for LTE (Long Term Evolution), which is currently being standardized by 3GPP (Third Generation Partnership Project). It can be used in the mobile core network IP-CAN (Internet Protocol-Connectivity Access Network) for UMB (Ultra Mobile Broadband) that is being advanced.
  • SAE / EPC System Architecture Evolution / Evolved PP
  • IP-CAN Internet Protocol-Connectivity Access Network
  • UMB Ultra Mobile Broadband

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

Abstract

Selon l'invention, un routage dépendant du type de trafic est accompli sans ajouter une fonction de terminal ni compliquer le contrôle d'une porteuse d'accès radio. Un MAG (100) agissant en tant que dispositif de transfert de trafic identifie le type de porteuse d'une porteuse d'accès radio (300) paramétrée entre le MAG (100) et un terminal utilisateur, ou analyse le débit dans la porteuse d'accès radio (300). Sur la base des résultats de l'identification du type de porteuse de la porteuse d'accès radio (300) ou de l'analyse de débit, le MAG (100) détermine si la destination de transfert est, ou non, un client IP mobile proxy, et transfère le trafic.
PCT/JP2009/063266 2008-07-24 2009-07-24 Système de communication mobile, dispositif de transfert de trafic, et procédé et programme de transfert de trafic Ceased WO2010010945A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008-191305 2008-07-24
JP2008191305A JP4506883B2 (ja) 2008-07-24 2008-07-24 移動通信システム、トラヒック転送装置、トラヒック転送方法及びプログラム

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WO2010010945A1 true WO2010010945A1 (fr) 2010-01-28

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KR101494729B1 (ko) 2011-02-24 2015-02-23 인터디지탈 패튼 홀딩스, 인크 안정된 로컬 브레이크아웃 개념 및 사용법
WO2017026074A1 (fr) * 2015-08-13 2017-02-16 富士通株式会社 Système et appareil de communication sans fil ainsi que procédé de commande de chemin de communication

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009024182A1 (fr) * 2007-08-20 2009-02-26 Telefonaktiebolaget Lm Ericsson (Publ) Procédé et appareil fournissant une sortie locale àun réseau mobile

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009024182A1 (fr) * 2007-08-20 2009-02-26 Telefonaktiebolaget Lm Ericsson (Publ) Procédé et appareil fournissant une sortie locale àun réseau mobile

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
"Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2 (Release 8)", 3GPP TS 36.300 V8.5.0 (2008-05), V8.5.0, May 2008 (2008-05-01), pages 66, 67 *
"Technical Specification Group Services and System Aspects; Architecture enhancements for non-3GPP accesses(Release 8)", 3GPP TS 23.402 V8. 2.0 (2008-06), V8.2.0, 3GPP, June 2008 (2008-06-01), pages 24 *
"Technical Specification Group Services and System Aspects; General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access(Release 8)", 3GPP TS 23.401 V8.2.0 (2008-06), V8.2.0, 3GPP, June 2008 (2008-06-01), pages 31 *
"Technical Specification Group Services and System Aspects; System enhancements for the use of IMS services in local breakout and optimal routing of media(Release 8)", 3GPP TR 23.894 V0.3.1 (2008-01), V0.3.1, 3GPP, January 2008 (2008-01-01) *

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JP4506883B2 (ja) 2010-07-21

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