WO2011147332A1 - Procédé, appareil et système de communication permettant de traiter des messages de réseau - Google Patents

Procédé, appareil et système de communication permettant de traiter des messages de réseau Download PDF

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Publication number
WO2011147332A1
WO2011147332A1 PCT/CN2011/074870 CN2011074870W WO2011147332A1 WO 2011147332 A1 WO2011147332 A1 WO 2011147332A1 CN 2011074870 W CN2011074870 W CN 2011074870W WO 2011147332 A1 WO2011147332 A1 WO 2011147332A1
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Prior art keywords
network
message
gateway
mobile communication
request message
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PCT/CN2011/074870
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English (en)
Chinese (zh)
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戚彩霞
银宇
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华为技术有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16—Gateway arrangements

Definitions

  • the mobile management network element may be a Gn/Gp GPRS service support node (hereinafter referred to as Gn/Gp SGSN), and the data gateway may be a GPRS gateway support node (Gateway GPRS Support Node, hereinafter referred to as GGSN).
  • Gn/Gp SGSN Gn/Gp GPRS service support node
  • GGSN Gateway GPRS Support Node
  • 2 is a network architecture diagram of a next-generation mobile communication network. As shown in FIG. 2, the user equipment passes through a local radio access network, such as an Evolved Universal Terrestrial Radio Access Network (hereinafter referred to as E- UTRAN) access,
  • E- UTRAN Evolved Universal Terrestrial Radio Access Network
  • the service gateway is the local access gateway of the user equipment, and is responsible for access technology related connection management and data forwarding.
  • the data gateway is the user equipment. Access to the gateway of the external data network.
  • the mobility management network element and the service gateway serve as convergence points of the access network, and are also referred to as access nodes.
  • the mobility management network element may be a mobility management entity (Mobility Management Entity, hereinafter referred to as MME) or an S4 GPRS service support node (hereinafter referred to as S4 SGSN), and the service gateway may be a serving gateway (Serving Gateway) , hereinafter referred to as: SGW), the data gateway may be a packet data network gateway (Packet Data Network Gateway, hereinafter referred to as PGW) in order to realize the roaming between the UE in the next generation mobile communication network and the existing 2G/3G mobile communication network.
  • MME Mobility Management Entity
  • S4 SGSN S4 GPRS service support node
  • SGW serving gateway
  • PGW Packet Data Network Gateway
  • next-generation mobile communication networks need to be deployed so that mobile management network elements in next-generation mobile communication networks need to support the functions of mobile management network elements in 2G/3G mobile communication networks, while in the next generation mobile communication networks.
  • the data gateway needs to support the data gateway function in the 2G/3G mobile communication network. This deployment increases the network deployment and operational costs of the operator.
  • the embodiment of the invention provides a gateway device, the gateway device and a next generation mobile communication network and
  • a first receiving module configured to: when the visited network is a next-generation mobile communication network, and the home network is a 2G/3G mobile communication network, the SGW that receives the visited network as the PGW sends the first network message, where the first network message has the first a version processing format, configured to convert the first network message received by the first receiving module into a second network message, where the second network message has a second version format; Sending, by the SGSN, the second network message to the GGSN of the home network; or
  • An embodiment of the present invention provides an access node device, including:
  • a second receiving module configured to receive a message sent by the user equipment, where the message includes user information
  • an acquiring module configured to acquire, according to the user information, a gateway capable of converting the first network message into a second network message Address information of the device, the first network message has a first version format, and the second network message has a second version format;
  • a GW device is deployed between a next-generation mobile communication network and a 2G/3G mobile communication network, and a version format of the network message transmitted between the next-generation mobile communication network and the 2G/3G mobile communication network is performed by the GW device.
  • the conversion eliminates the need for functional improvement of the existing network element devices in the next generation mobile communication network and the 2G/3G mobile communication network, thereby reducing the network deployment and operation costs of the operator.
  • Figure 1 is a network architecture diagram of a 2G/3G mobile communication network
  • FIG. 2 is a network architecture diagram of a next generation mobile communication network
  • Embodiment 3 is a flowchart of Embodiment 1 of a network message processing method according to the present invention.
  • FIG. 4 is a signaling flowchart of Embodiment 2 of a network message processing method according to the present invention
  • FIG. 5 is a signaling flowchart of Embodiment 3 of a network message processing method according to the present invention.
  • FIG. 6 is a flowchart of Embodiment 4 of a network message processing method according to the present invention.
  • FIG. 7 is a schematic structural diagram of an embodiment of a gateway device according to the present invention.
  • FIG. 9 is a schematic structural diagram of an embodiment of a communication system according to the present invention.
  • FIG. 3 is a flowchart of Embodiment 1 of a network message processing method according to the present invention. As shown in FIG. 3, the method in this embodiment may include:
  • Step 101 Receive a first network message sent by an access node of the visited network, where the first network message has a first version format.
  • the mobile management network element and the data gateway use the GTPvl protocol for communication, and in the next generation mobile communication network shown in FIG. 2, the mobile management network element
  • next-generation mobile communication networks In order to communicate with the GGSN supporting the GTPvl protocol in the home network; when the visited network is a 2G/3G mobile communication network, and the home network is a next generation mobile communication network, the PGW in the home network must support the GTPvl protocol to Gn/Gp SGSN supporting GTPvl in the network is used for communication. Therefore, operators deploying next-generation mobile communication networks use the above-mentioned network deployment methods, which increases the cost of network deployment and maintenance of the evolved packet system, and is also disadvantageous for the smooth evolution of the network.
  • the present embodiment can deploy a gateway (Gateway, hereinafter referred to as GW) device between the next generation mobile communication network and the 2G/3G mobile communication network. Interworking between the next generation mobile communication network and the 2G/3G mobile communication network is realized by the GW device. It should be noted that a plurality of GW devices can be deployed by a person skilled in the art as needed, so that multiple mobile communication networks can communicate with each other.
  • GW gateway
  • the GW device may receive the first network message sent by the visited network, where the first network message has a first version format, and the first version format is a version format supported by the visited network.
  • the GW device can receive the first network message in the GTPv1 format sent by the 2G/3G mobile communication network. That is, in this case, the first version format is GTPvl format; if the UE's home network is a 2G/3G mobile communication network, and the current visited network is a next-generation mobile communication network, the GW device can receive the next generation mobile
  • the first network message in the GTPv2 format sent by the communication network that is, in this case, the first version format is the GTPv2 format.
  • Step 102 Convert the first network message to a second network message, where the second network message has a second version format.
  • the GW device may convert the first network message of the first version format to the second network message of the second version format.
  • the GW device may convert the first network message in the GTPv1 format to the second network message in the GTPv2 format; Receiving the first network message in the GTPv2 format sent by the next generation mobile communication network, the GW device may convert the first network message in the GTPv2 format into the second network message in the GTPv1 format.
  • the first network message in the GTPv1 format is converted into the second network message in the GTPv2 format, or the first network message in the GTPv2 format is converted into the second network in the GTPv1 format.
  • the message can be implemented by using the existing technology, and will not be described here.
  • Step 103 Send the second network message to a data gateway of the home network.
  • the GW device After converting the version format of the network message, the GW device can send the second network message with the second version format to the data gateway of the home network.
  • the GW device may send the second network message to the PGW in the next generation mobile communication network;
  • the first network message in the GTPv2 format is converted into the second network message in the GTPv1 format, and the GW device can send the second network message to the GGSN in the 2G/3G mobile communication network.
  • the method provided in this embodiment deploys a GW device between a next-generation mobile communication network and a 2G/3G mobile communication network, and the network message transmitted between the next-generation mobile communication network and the 2G/3G mobile communication network is performed by the GW device.
  • the version format conversion eliminates the need for functional improvements to the existing network element devices in the next generation mobile communication network and the 2G/3G mobile communication network, thereby reducing the network deployment and operation costs of the operator.
  • a home network of a UE is a 2G/3G mobile communication network
  • a visited network is a next-generation mobile communication network.
  • the access node of the visited network SGW and S4 SGSN support GTPv2, and the data gateway of the home network GGSN supports GTPv1.
  • the method of this embodiment may include:
  • Step 201 The UE sends a Packet Data Protocol (PDP) context request message to the S4 SGSN.
  • PDP Packet Data Protocol
  • the U E may initiate a PDP activation procedure, and the activated PDP context request message is forwarded through the access network UTRAN or GERAN.
  • the active PDP context request message may include user information of the UE, for example, an International Mobile Subscriber Identity (hereinafter referred to as IMSI) of the UE.
  • IMSI International Mobile Subscriber Identity
  • the UE in this embodiment may include a mobile terminal responsible for wireless receiving and transmitting and related functions.
  • Mobile Termination hereinafter referred to as MT
  • TE Terminal Equipment
  • Step 202 The S4 SGSN sends a setup session request message to the SGW.
  • the S4 SGSN can obtain the correspondence and the address of the GW device from other network devices.
  • the S4 SGSN does not perceive the GTP version supported by the home network, and obtains the GW address directly through the Domain Name System (DNS).
  • DNS Domain Name System
  • the S4 SGSN can pass the default operator identifier (Operator Identifier, hereinafter referred to as OI).
  • OI Operator Identifier
  • the access point name (Access Point Name, APN) domain name (Full Qualified Domain Name, FQDN) is constructed, and a query request is sent to the DNS to obtain the address information of the GW device.
  • the activated PDP context request message may further include user location information, and the S4 SGSN may obtain an address of the SGW according to the user location information, thereby sending a setup session request message to the SGW.
  • Step 203 The SGW sends a setup session request message to the GW device.
  • the setup session request message has a GTPv2 format.
  • Step 204 The GW device sends a PDP Context Request message to the GGSN of the home network. After receiving the setup session request message, the GW device may convert the GTPv2 format setup session request message into a GTPv1 format setup PDP context request message, and send the setup PDP context request message to the GGSN in the UE's home network. .
  • the GW device serves as the PGW of the SGW and also serves as the Gn/Gp SGSN of the GGSN to the UE.
  • the GW device can also serve as a gateway for the UE to access the external data network in the current visited network. Specifically, after receiving the session establishment request message, the GW device may determine whether the user is a roaming user according to user information, such as APN OI, included in the establishment session request message. If the user is determined to be a non-roaming user according to the user information, the GW device accesses the external data network as an exit of the UE, and sends a message to the external data network. When it is determined that the user is a roaming user, the establishment PDP context request message is sent to the GGSN in the home network.
  • user information such as APN OI
  • Step 205 The GGSN sends a PDP context response message to the GW device.
  • the GGSN in the UE's home network sends a PDP context response message in the GTPv1 format to the GW device.
  • the GGSN can also be used as a dynamic host configuration protocol (DHCP) client to request the IP address information of the UE from the DHCP server.
  • DHCP dynamic host configuration protocol
  • the session response message is established in the GTPv2 format, and the setup session response message is sent to the SGW.
  • Step 209 The S4 SGSN sends an update bearer request message to the SGW.
  • the message is used to inform the SGW to establish a direct tunnel directly to the radio access network.
  • Step 211 The S4 SGSN sends an Activate PDP Context Response message to the UE through the UTRAN/GERAN network.
  • the active PDP context response message is sent to the MT.
  • Step 212 The UE sends a DHCP discovery message to the GGSN in the home network. If the UE needs to obtain IP address information through DHCP, the UE may send a DHCP discovery message to the GGSN in the home network. If the MT and the TE are separated, the DHCP discovery message is sent by the TE.
  • Step 213 If the IP address information is allocated by the external network, the GGSN sends a DHCP discovery message to the DHCP server.
  • Step 214 The DHCP server sends a DHCP offer message to the GGSN.
  • the DHCP providing message may include the IP address information of the UE. Therefore, the GGSN can obtain the IP address information of the UE.
  • Step 215 The GGSN sends a DHCP offer message to the UE.
  • Step 216 The UE sends a DHCP request message to the GGSN.
  • Step 217 If the IP address information is allocated by the external network, the GGSN sends a DHCP request message to the DHCP server.
  • Step 218 The DHCP server sends a DHCP confirmation message to the GGSN.
  • Step 219 The GGSN sends a DHCP acknowledgement message to the UE.
  • Step 220 The GGSN sends an update PDP context notification message to the GW device.
  • the update PDP context notification message has the GTPvl format.
  • the update PDP context notification message includes the IP address information of the UE sent by the DHCP server to the GGSN in step 214 or the IP address information sent to the U E when the GGSN is used as the D H C P server.
  • the GW device may convert the updated PDP context notification message in the GTPv1 format into an update bearer notification message in the GTPv2 format, and send the update bearer notification message to the SGW.
  • the update bearer message includes the IP address information of the UE.
  • Step 223 The S4 SGSN sends an update bearer notification message to the UE.
  • the S4 SGSN notifies the MT of the IP address information. At this point, the MT can obtain the IP address information.
  • Step 224 The UE sends an update bearer response message to the S4 SGSN. If the MT and TE are separated, the message is sent by the MT.
  • Step 225 The S4 SGSN sends an update bearer response message to the SGW.
  • Step 226 The SGW sends an update bearer response message to the GW device.
  • Step 227 The GW device sends an update PDP context response message to the GGSN.
  • step 221 to the step 226 may be omitted, that is, the GW device may not directly notify the SGW, the S4 SGSN, and the UE, but directly send the update PDP context response message to the GGSN.
  • the method provided in this embodiment deploys a GW device between a next-generation mobile communication network and a 2G/3G mobile communication network.
  • the home network of the UE is a 2G/3G mobile communication network
  • the visited network is a next-generation mobile communication network
  • a version of the network message transmitted between the next-generation mobile communication network and the 2G/3G mobile communication network is performed by the GW device.
  • the format conversion eliminates the need for functional improvement of the existing network element devices in the next generation mobile communication network and the 2G/3G mobile communication network, thereby reducing the network deployment and operation costs of the operator.
  • FIG. 5 is a signaling flowchart of a method for processing a network message according to Embodiment 3 of the present invention.
  • a visited network of a UE is a 2G/3G mobile communication network
  • a home network is a next-generation mobile communication network.
  • the access node of the visited network Gn/Gp SGSN supports GTPvl
  • the data gateway of the home network PGW supports GTP version 2.
  • the method of this embodiment may include:
  • Step 301 The UE sends an Activate PDP Context Request message to the Gn/Gp SGSN.
  • the active PDP context request message is forwarded via the access network UTRAN or GERAN.
  • the activated PDP context request message may include user information of the UE, such as the IMSI of the UE.
  • the Activate PDP Context Request message is sent by the MT.
  • Step 302 The Gn/Gp SGSN sends a PDP Context Request message to the GW device.
  • the setup PDP context request message has a GTPvl format.
  • the Gn/Gp SGSN obtains the address of the gateway GW through the APN to the DNS query.
  • Step 303 The GW device sends a setup session request message to the PGW of the home network.
  • the replacement OI can be stored on the GW device, or the GW device can be obtained from other devices.
  • the GW device serves as the GGSN of the Gn/Gp SGSN, and also serves as the SGW of the PGW to provide services to the UE.
  • Step 304 The PGW device sends a setup session response message to the GW device.
  • the PGW in the home network of the U E sends a setup session response message in the GTPv2 format to the GW device.
  • the PGW can also serve as a DHCP client, requesting the IP address information of the UE from the DHCP server.
  • Step 305 The GW device sends a setup PDP context response message to the Gn/Gp SGSN.
  • Step 308 The GW device sends an update PDP context response message to the Gn/Gp SGSN.
  • Step 309 The Gn/Gp SGSN sends an activation PDP to the UE through the UTRAN/GERAN network.
  • the active PDP context response message is sent to the MT.
  • Step 310 The UE sends a DHCP discovery message to the GW device.
  • the UE may send a DHCP discovery message to the GW device. If the MT and the TE are separated, the DHCP discovery message is sent by the TE.
  • Step 311 The GW device sends a DHCP discovery message to the DHCP server through the PGW.
  • Step 312 The DHCP server sends a DHCP offer message to the GW device through the PGW.
  • the DHCP providing message includes the IP address information of the UE. Therefore, the GW device can obtain the IP address information of the UE.
  • Step 313 The GW device sends a DHCP offer message to the UE.
  • Step 314 The UE sends a DHCP request message to the GW device.
  • Step 315 The GW device sends a DHCP request message to the DHCP server through the PGW.
  • Step 316 The DHCP server sends a DHCP acknowledgement message to the GW device through the PGW.
  • Step 317 The GW device sends a DHCP acknowledgement message to the UE.
  • Step 318 The GW device sends an update PDP context notification message to the Gn/Gp SGSN.
  • Step 319 The Gn/Gp SGSN sends a modify PDP context notification message to the UE.
  • Step 320 The UE sends a modify PDP context response message to the Gn/Gp SGSN.
  • the S4 SGSN or the Gn/Gp SGSN may learn the home network of the UE according to the user information included in the received activated PDP context request message.
  • the S4 SGSN can store a correspondence table between the home network information and the GTP version.
  • the S4 SGSN can obtain the GTP version format supported by the home network information from the correspondence table, and obtain the address information of the corresponding GW device according to the GTP version format.
  • the GW device corresponding to the address information has a conversion function between the GTPvl protocol and the GTPv2 protocol.
  • the S4 SGSN can be obtained from other network devices.
  • the correspondence may be stored on the DNS, and the S4 SGSN may construct an APN FQDN by using 01 and send a query request to the DNS to query the address information of the GW device.
  • Step 403 Send the first network message to a gateway device corresponding to the address information.
  • the S4 SGSN or the Gn/Gp SGSN may send the first network message to the corresponding GW device, so that the GW device can convert the first network message into the second network message.
  • the first network message sent by the S4 SGSN may be a session establishment request message
  • the first network message sent by the Gn/Gp SGSN may be a PDP context request message.
  • gateway device For the specific function of the gateway device, refer to the detailed description of any of the embodiments in FIG. 1 to FIG. 3, and details are not described herein again. The specific structure of the gateway device will be described in detail below.
  • the gateway device in this embodiment may be used to perform the method in the method embodiment shown in FIG. 5, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • the obtaining module 22 may include a determining unit 221 and an obtaining unit 222, where the determining unit 221 Determining, according to the user information, the home network information of the user equipment; the obtaining unit 222 is configured to obtain, from the correspondence between the stored home network and a version format supported by the home network, the home network The version format information corresponding to the information, and obtaining the address of the gateway device according to the version format information. Interest; or, from the correspondence table stored in the domain name server, querying the home network version information corresponding to format information, and acquiring the address information according to the format of the version information.
  • the second sending module 23 is configured to send the first network message to a gateway device corresponding to the address information.
  • the access node device in this embodiment may be used to perform the method in the method embodiment shown in FIG. 6.
  • the principle and the technical effect are similar, and details are not described herein again.
  • FIG. 9 is a schematic structural diagram of an embodiment of a communication system according to the present invention.
  • the system of this embodiment may include: a next-generation mobile communication network device 1, a gateway device 2, and a 2G/3G mobile communication network device 3 connected in sequence. connection.
  • the gateway device 2 is configured to: when the visited network is a next-generation mobile communication network, and the home network is a 2G/3G mobile communication network, the SGW that receives the visited network as the PGW sends the first network message, where the first network message has the first version format.
  • the network is a 2G/3G mobile communication network.
  • the home network is a next-generation mobile communication network
  • the SGSN that receives the visited network as the GGSN sends a first network message, where the first network message has a first version format; and the first network message is converted into a second network message.
  • the second network message has a second version format; and is used to send the second network message as a SGW to the PGW of the home network.

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

Abstract

La présente invention se rapporte, dans les modes de réalisation, à un procédé, à un appareil et à un système de communication permettant de traiter des messages de réseau. Le procédé consiste à : recevoir un premier message de réseau envoyé par un nœud d'accès d'un réseau visité, le premier message de réseau étant pourvu d'un premier format de version (101); convertir le premier message de réseau en un second message de réseau, le second message de réseau étant pourvu d'un second format de version (102); et envoyer le second message de réseau à une passerelle de données d'un réseau domestique (103). Les modes de réalisation de la présente invention agencent un équipement de passerelle (GW) entre un réseau de communication mobile de la prochaine génération et un réseau de communication mobile de deuxième génération/troisième génération (2G/3G) et effectuent, au moyen de l'équipement de passerelle (GW), une conversion de format de version pour les messages de réseau qui sont transmis entre le réseau de communication mobile de la prochaine génération et le réseau de communication mobile 2G/3G sans améliorer les fonctions de chaque équipement d'élément de réseau actuel dans le réseau de communication mobile de la prochaine génération et le réseau de communication mobile 2G/3G, ce qui permet de réduire les coûts de déploiement du réseau et de fonctionnement des opérateurs.
PCT/CN2011/074870 2010-09-20 2011-05-30 Procédé, appareil et système de communication permettant de traiter des messages de réseau WO2011147332A1 (fr)

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