WO2008069520A1 - Passerelle d'accès mobile à convergence ip et procédé de service correspondant - Google Patents

Passerelle d'accès mobile à convergence ip et procédé de service correspondant Download PDF

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Publication number
WO2008069520A1
WO2008069520A1 PCT/KR2007/006205 KR2007006205W WO2008069520A1 WO 2008069520 A1 WO2008069520 A1 WO 2008069520A1 KR 2007006205 W KR2007006205 W KR 2007006205W WO 2008069520 A1 WO2008069520 A1 WO 2008069520A1
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WO
WIPO (PCT)
Prior art keywords
packet
routing
transport
control
base station
Prior art date
Application number
PCT/KR2007/006205
Other languages
English (en)
Inventor
Dong-Jin Shin
Young-Jick Bahg
Yeong-Jin Kim
Original Assignee
Electronics And Telecommunications Research Institute
Samsung Electronics.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
Priority claimed from KR1020070083980A external-priority patent/KR100885812B1/ko
Application filed by Electronics And Telecommunications Research Institute, Samsung Electronics.Co., Ltd. filed Critical Electronics And Telecommunications Research Institute
Priority to US12/517,770 priority Critical patent/US20100008299A1/en
Publication of WO2008069520A1 publication Critical patent/WO2008069520A1/fr

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Classifications

    • 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 an Internet protocol (IP) converged mobile access gateway for a 3rd generation (3G) mobile service and a service method using the same; and, more particularly, to an IP converged mobile access gateway for a 3G mobile service, which is usable for a 3G evolution or a post-3G IP mobile access network, and a service method using the same.
  • IP Internet protocol
  • the present invention relates to an converged mobile access gateway for efficiently providing a 3G evolution IP mobile service in a 3G evolution IP mobile access network by converging IP technologies such as IP packet routing, and mobile access control functions such as efficient transfer of a control signal and a traffic signal, and mobility management and session management with respect to a base station and a terminal, and a service method using the same.
  • Examples of an IP mobile access network include an IP transport radio access network (IPTRAN) using an IP transport network, and an IP converged radio access network (IPCRAN) where an IP technology and a mobile access control technology are converged.
  • IPTRAN IP transport radio access network
  • IPCRAN IP converged radio access network
  • the IPTRAN is an IP access network at an initial stage.
  • an IP is used for access between network elements while existing mobile network elements such as Node-B/base transceiver station (BTS) or a radio network controller (RNC)/base station controller (BSC) are maintained.
  • BTS Node-B/base transceiver station
  • RNC radio network controller
  • BSC base station controller
  • the IPTRAN allows the use of an existing system and is enabled just by changing an interface into an IP base, thereby realizing easy application thereof.
  • the IPTRAN has limitations in efficiency of network configuration because an Internet technology and a mobile communications technology independently exist.
  • FIG. 1 is a block diagram of a conventional distributed IP mobile access network.
  • a network illustrated in Fig. 1 has a configuration where a 3G evolution base station
  • a base station controller (BSC) 13 and a user data transmitter 14 are connected about an IP access network 12.
  • a router 15 is provided as in a general Internet network.
  • the conventional access network illustrated in Fig. 1 is a general 3G evolution access network, and is characterized in that the BSC 13 and the user data transmitter 14 are separated.
  • the router 15 for IP matching with an external core network is also separated.
  • Such a conventional access network has flexibility in configuring an IP network, but has limitations in that control information required for access network control cannot be exchanged between the router 15 and the user data transmitter 14 or between the router 15 and the BSC 13, and it operates independently from the router 15.
  • Examples of the control information may include service quality information session information, IP address information of a terminal, and mobility management information thereof.
  • the aforementioned information used in an Internet network cannot be exchanged, and must be separately re-generated to be suitable for mobile communication.
  • Standardization organizations including the 3GPP are conducting many studies on post 3G system technologies to solve the limitations described above and achieve effective convergence of the Internet technology and the mobile communication technology. Those studies are being conducted in order to achieve extensibility and easy reconfiguration and allow flexible system configuration by distributing an access network according to each function by taking advantage of easy networking of the Internet technology.
  • An embodiment of the present invention is directed to providing an IP converged mobile access gateway in which an Internet technology and a mobile communication technology are organically converged with each other while a distributed characteristic is maintained and an IP is used in configuring a mobile access gateway, which is a component of a post 3G evolution access network, and a service method using the same.
  • an Internet protocol (IP) converged mobile access gateway for a third-generation (3G) mobile service which is placed between a base station and an IP core network to provide an IP mobile service to a terminal
  • the IP converged mobile access gateway including: an access controller adapted to exchange a control signal with the base station and perform mobility control for the terminal and session control for a service request; a transport controller adapted to perform routing database information management and routing protocol processing for packet routing; and a transport executor adapted to set a tunnel with the base station for user data transmission according to control information sent from the access controller, configure a packet data convergence protocol (PDCP) for a logical connection with the terminal, and interwork with the transport controller to perform packet routing and forwarding.
  • PDCP packet data convergence protocol
  • a service method using an Internet protocol (IP) converged mobile access gateway placed between a base station and an internet protocol (IP) core network and having an access controller, a transport controller and a transport executor including: at the access controller, performing authentication and security setting in response to a service request of a terminal; at the access controller, requesting the transport executor to set a tunnel in response to a context activation request; at the access controller, requesting the base station to assign a bearer when a tunnel is set at the transport executor; at the access controller, requesting the transport executor to configure a packet data convergence protocol (PDCP) for a logical connection with the terminal in response to a PDCP configuration request of the base station; and at the access controller, sending a PDCP configuration response to the base station, and reporting that the context activation request is accepted when a bearer assignment response is received from the base station.
  • IP Internet protocol
  • IP internet protocol
  • a control plane and a user plane are separated, and a mobile communication function and an IP-based function are effectively converged, so that a mobile access network can be efficiently controlled, and a service for a 3G evolution or post 3G base station and terminal using a framing protocol (FP) and a packet data convergence protocol (PDCP) can be effectively supported.
  • FP framing protocol
  • PDCP packet data convergence protocol
  • a mobile communication function and an Internet function are organically converged, so that mobile access can be effectively performed.
  • a base station system e.g., a 3G evolution base station which is eNode B or an enhanced base station thereof, which is one of important elements of an access network contributes to effectively providing a service such as mobility control, session control, and a multimedia broadcasting/group transmission service such as multicast broadcast multimedia service (MBMS).
  • MBMS multicast broadcast multimedia service
  • a framing protocol (FP) and a packet data convergence protocol (PDCP) processing functions, and an IP packet routing function can be effectively converged so as to effectively support 3G evolution and post 3G base stations and terminals.
  • an access control service such as mobility control and session control for a 3G evolution mobile service can be efficiently performed.
  • FIG. 1 is a block diagram of a conventional IP distributed mobile access network.
  • FIG. 2 is a block diagram of a mobile access network in accordance with an embodiment of the present invention.
  • FIG. 3 is a block diagram of a mobile access gateway in accordance with an embodiment of the present invention.
  • FIG. 4 is a block diagram of a transport executor in accordance with an embodiment of the present invention.
  • FIG. 5 is a block diagram of a transport controller in accordance with an embodiment of the present invention.
  • FIG. 6 is a block diagram of an access controller in accordance with an embodiment of the present invention.
  • Fig. 7 is a flow diagram illustrating a service method in accordance with an embodiment of the present invention.
  • FIG. 2 is a block diagram of an IP converged mobile access network in accordance with an embodiment of the present invention.
  • the IP converged mobile access gateway 23 in accordance with an embodiment of the present invention is placed between an IP access network 22 and an IP core network.
  • the converged access gateway 23 in accordance with an embodiment of the present invention includes an access controller, a transport controller, and a transport executor to converge a mobile communication function and an Internet function together.
  • the IP converged mobile access gateway in accordance with an embodiment of the present invention contributes to simplifying access network configuration and achieving flexible system extension. Also, the converged access gateway can provide an advanced mobile service to a 3G evolution base station or an enhanced base station thereof and a terminal.
  • FIG. 3 is a block diagram of an IP converged access gateway in accordance with an embodiment of the present invention.
  • the converged access gateway 23 in accordance with an embodiment of the present invention includes an access controller 101, a transport controller 102, and a transport executor 103.
  • the access controller 101 For reliable transfer of a control signal to a base station, the access controller 101 performs protocol processing for radio network application, and mobility control and session control. That is, the access controller 101 interworks with the base station to process authentication and security in response to a service request of a terminal, and interworks with the transport controller 102 and the transport executor 103 in response to the service request of the terminal to control tunnel setting and logical configuration of a packet data convergence protocol (PDCP). The access controller performs session control and mobility control for handover of the terminal.
  • PDCP packet data convergence protocol
  • the transport controller 102 controls processing of a framing protocol (FP) operating at the transport executor 102, PDCP processing and packet forwarding, and sends operation information of the transport executor 103 to the access controller 101.
  • FP framing protocol
  • the transport controller 102 also performs routing database information management and routing protocol processing for routing.
  • the transport executor 103 executes an FP required for user data transmission to the base station, performs tunnel setting and management with the base station according to control information of the access controller 101. Also, the transport executor 103 is logically connected to a user terminal to perform PDCP processing for processing compression and extension of a packet header, and packet routing and forwarding. The detailed operations of the access controller 101, the transport controller 102, and the transport executor 103 will be described with reference to Figs. 4 to 7.
  • FIG. 4 is a block diagram of a transport executor of an IP converged mobile access gateway in accordance with an embodiment of the present invention.
  • the transport executor 103 includes an IP packet forwarding unit 203, an FP processing unit 201, a PDCP processing unit 202, a protocol processing control unit 205, a packet forwarding control unit 204, and a matching unit 206 for matching with the transport controller 102 for control-message transfer.
  • the IP packet forwarding unit 203 performs packet intercept and routing according to routing control information sent from the packet forwarding controller 204.
  • the IP packet forwarding unit 203 performs table management for packet filtering, paging reporting for a received packet, packet buffering, and control message processing for a multimedia packet for broadcasting and group transmission.
  • the FP processing unit 201 converts a packet transmitted from the PDCP processing unit 202 into an FP packet according to mobile management information and session management information sent from the protocol processing control unit 205. Then, the FP processing unit 201 sends the FP packet to the base station. Also, the FP processing unit 201 performs tunnel generation, release and management with the base station for a transmission bearer under the control of the protocol processing control unit 205, and performs error processing of the FP.
  • the PDCP processor 202 is logically connected to a user terminal under the control of the protocol processing control unit 205 to receive an IP packet from the terminal.
  • the PDCP processing unit 202 compresses a header of the IP packet sent from the IP packet forwarding unit 203 and transmits to the FP processing unit 201. Then, the PDCP processing unit 202 extends a header of an IP packet sent from the FP processing unit 201 and transmits to the IP packet forwarding unit 203.
  • the packet forwarding control unit 204 controls the IP packet forwarding unit 203 according to routing control information, which is an IP packet control message sent from the transport controller 102 via the matching unit 206.
  • the protocol processing control unit 205 receives control information via the matching unit 20 to perform tunnel generation, release and management on the FP processing unit 201 and the PDCP processing unit 202.
  • the control information is associated with bearer setting, which is sent from a mobility management unit and a session management unit of the access controller 101.
  • FIG. 5 is a block diagram of a transport controller of an IP converged mobile access gateway in accordance with an embodiment of the present invention.
  • the transport controller 102 includes a matching unit 304 for matching with the access controller 101, a control unit 303 for controlling the transport executor 103, a routing protocol processing unit 302, and a routing database 301.
  • the matching unit 304 for the matching with the access controller 101 performs matching to exchange a control message with the access controller 101.
  • the routing database 301 and the routing protocol processing unit 302 perform storage and management of an adjacent routing address required for routing, and routing-protocol execution to perform IP packet routing in packet forwarding of the transport executor 103. That is, the routing protocol processing unit 302 acquires routing information for the IP packet routing from the routing database 301 upon a request of the control unit 303, and sends the routing information to the control unit 303.
  • the control unit 303 controlling the transport executor 103 sends routing control information to the transport executor 103, and sends the mobility management information and the session management information sent from the access controller 101 via the matching unit 304 to the matching unit 206 of the transport executor 103.
  • FIG. 6 is a block diagram of an access controller of an IP converged mobile access gateway in accordance with an embodiment of the present invention.
  • the access controller 101 includes a base station (BS) access protocol processing unit 402, a mobility management unit 403, a session management unit 404, and a matching unit 401.
  • the BS access protocol processing unit 402 performs matching with a base station, and protocol processing.
  • the mobility management unit 403 manages mobility such as handover of a user terminal.
  • the session management unit 404 performs session setting, release and management required for user data transfer.
  • the matching unit 401 performs matching with the transport controller 102.
  • the BS access protocol processing unit 402 processes a protocol for radio access network control application to exchange bearer- setting control information required for user data transfer between the base station and the access gateway.
  • the BS access protocol processing unit 402 exchanges mobility management information and session management information with the base station through the protocol for the radio access network control application.
  • the mobility management unit 403 performs access and release with respect to a user terminal according to the mobility management information sent from the BS access protocol processing unit 402. Also, the mobility management unit 403 performs routing-area update processing of the terminal, terminal service request processing, paging processing, authentication and encoding processing, message transfer processing, and context management for a multimedia broadcasting/group transmission service.
  • the session management unit 404 performs service session management such as setting and closing of a session according to the session management information. Also, the session management unit 404 performs multi-session management, and management of a packet data protocol (PDP) context and a multicast broadcast multimedia service (MBMS) context. The session management unit 404 also performs session management for the multimedia broadcasting/group transmission service.
  • PDP packet data protocol
  • MBMS multicast broadcast multimedia service
  • the matching unit 401 sends the mobility management information sent from the mobility management unit 403 and the session management information sent from the session management unit 404 to the transport controller 102.
  • FIG. 7 is a flow diagram for explaining a process of processing a service request of a terminal in an IP converged mobile access gateway in accordance with an embodiment of the present invention.
  • the mobility management unit 403 of the access controller 101 authenticates the terminal and sets a password mode to process authentication and security of the terminal in step S702.
  • the access controller 101 makes a response indicating that the service request of the terminal is accepted in step S703.
  • the terminal requests activation of a packet data protocol (PDP) context through the base station.
  • PDP packet data protocol
  • the session management unit 404 of the access controller 101 requests the transport executor 103 to set a tunnel through the transport controller 102 in step S705.
  • the protocol processing control unit 205 of the transport executor 103 controls the FP processing unit 201 to set a tunnel with the base station.
  • the transport executor 103 sends a response about the tunnel setting to the access controller 101 through the transport controller 102.
  • step S707 when the access controller 101 receives a response indicating that the tunnel setting is completed, the access controller 101 requests the base station to assign a radio bearer for data transfer.
  • the access controller 101 receives a request for PDCP configuration from the base station in response to the request for the radio bearer assignment in step S708, the access controller 101 requests the protocol processing control unit 205 of the transport executor 103 to configure a PDCP through the transport controller 102 in step S709.
  • the protocol processing control unit 205 of the transport executor 103 controls the PDCP processing unit 202 to control to configure the PDCP for a logical connection to the terminal. Then, the protocol processing control unit 205 sends a result of the control to the access controller 101 through the transport controller 102.
  • the access controller 101 When the access controller 101 receives a response about the PDCP configuration through the transport controller 102 in step S710, the access controller 101 sends a response with respect to the PDCP configuration to the base station in step S711. Then, the base station sets a radio bearer with the terminal, and sends a radio bearer assignment response to the access controller 101 in step S712.
  • the access controller 101 informs the base station that the request for the PDP context activation is accepted.
  • the terminal can transmit packet data via the IP core network.
  • the packet data sent from the terminal is processed by the transport executor 103 of the access gateway.
  • the packet data is processed and transmitted by the FP processing unit 201, the PDCP processing unit 202, and the IP packet forwarding unit 203 of the transport executor 103.
  • the technology of the present invention can be realized as a program and stored in a computer-readable recording medium, such as CD-ROM, RAM, ROM, floppy disk, hard disk and magneto-optical disk. Since the process can be easily implemented by those skilled in the art of the present invention, further description will not be provided herein.

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

Abstract

Passerelle d'accès mobile à convergence IP pour service mobile de 3ème génération et procédé de service correspondant. Ladite passerelle comprend les éléments suivants: unité de commande d'accès conçue pour échanger un signal de commande avec la station de base et gérer la mobilité pour le terminal et la session pour une demande de service; unité de commande d'acheminement conçue pour gérer les informations sur une base de données d'acheminement et traiter un protocole de routage pour l'acheminement de paquets; et unité de mise en oeuvre de transport conçue pour créer un tunnel avec la station de base aux fins de transmission de données utilisateur conformément aux informations de commande reçue de l'unité de commande d'accès, configurer un protocole de convergence de données par paquets (PDCP) pour une connexion logique avec le terminal, et interagir avec l'unité de commande d'acheminement pour le routage et la transmission de paquets.
PCT/KR2007/006205 2006-12-07 2007-12-03 Passerelle d'accès mobile à convergence ip et procédé de service correspondant WO2008069520A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/517,770 US20100008299A1 (en) 2006-12-07 2007-12-03 Ip converged mobile access gateway for 3g mobile service and service method using the same

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2006-0124032 2006-12-07
KR20060124032 2006-12-07
KR1020070083980A KR100885812B1 (ko) 2006-12-07 2007-08-21 인터넷 프로토콜 기반의 이동통신 서비스 액세스게이트웨이 장치 및 이를 이용한 서비스 방법
KR10-2007-0083980 2007-08-21

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010081411A1 (fr) * 2009-01-13 2010-07-22 华为技术有限公司 Système de communication, entité de contrôle d'accès et procédé de contrôle d'accès d'un équipement d'utilisateur
WO2011009258A1 (fr) * 2009-07-23 2011-01-27 中兴通讯股份有限公司 Procédé et dispositif pour transmettre des données de protocole de convergence de données en paquets (pdcp)
US20110307621A1 (en) * 2009-02-27 2011-12-15 China Iwncomm Co.,Ltd Method for implementing a convergent wireless local area network (wlan) authentication and privacy infrastructure (wapi) network architecture in a local mac mode
US8813199B2 (en) 2009-02-27 2014-08-19 China Iwncomm Co., Ltd. Method for realizing convergent WAPI network architecture with separate MAC mode
US8855018B2 (en) 2009-02-27 2014-10-07 China Iwncomm Co., Ltd. Method for realizing convergent WAPI network architecture with split MAC mode
EP2894824A4 (fr) * 2012-09-27 2015-12-30 Huawei Tech Co Ltd Procédé et dispositif de transmission d'informations sans fil

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KR20020076518A (ko) * 2001-03-29 2002-10-11 한국전자통신연구원 Ｉｍｔ-2000 이동통신 네트워크에서 ｉｐ 패킷 기반핵심망 접속을 위한 무선 액세스 게이트웨이 장치 및 그방법과 그를 이용한 무선 데이터 서비스 시스템
US6714987B1 (en) * 1999-11-05 2004-03-30 Nortel Networks Limited Architecture for an IP centric distributed network

Patent Citations (2)

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US6714987B1 (en) * 1999-11-05 2004-03-30 Nortel Networks Limited Architecture for an IP centric distributed network
KR20020076518A (ko) * 2001-03-29 2002-10-11 한국전자통신연구원 Ｉｍｔ-2000 이동통신 네트워크에서 ｉｐ 패킷 기반핵심망 접속을 위한 무선 액세스 게이트웨이 장치 및 그방법과 그를 이용한 무선 데이터 서비스 시스템

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010081411A1 (fr) * 2009-01-13 2010-07-22 华为技术有限公司 Système de communication, entité de contrôle d'accès et procédé de contrôle d'accès d'un équipement d'utilisateur
US20110307621A1 (en) * 2009-02-27 2011-12-15 China Iwncomm Co.,Ltd Method for implementing a convergent wireless local area network (wlan) authentication and privacy infrastructure (wapi) network architecture in a local mac mode
US8813199B2 (en) 2009-02-27 2014-08-19 China Iwncomm Co., Ltd. Method for realizing convergent WAPI network architecture with separate MAC mode
US8855018B2 (en) 2009-02-27 2014-10-07 China Iwncomm Co., Ltd. Method for realizing convergent WAPI network architecture with split MAC mode
US9015331B2 (en) * 2009-02-27 2015-04-21 China Iwncomm Co., Ltd. Method for implementing a convergent wireless local area network (WLAN) authentication and privacy infrastructure (WAPI) network architecture in a local MAC mode
WO2011009258A1 (fr) * 2009-07-23 2011-01-27 中兴通讯股份有限公司 Procédé et dispositif pour transmettre des données de protocole de convergence de données en paquets (pdcp)
EP2894824A4 (fr) * 2012-09-27 2015-12-30 Huawei Tech Co Ltd Procédé et dispositif de transmission d'informations sans fil

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