WO2011147332A1

WO2011147332A1 - Method, apparatus and communication system for processing network messages

Info

Publication number: WO2011147332A1
Application number: PCT/CN2011/074870
Authority: WO
Inventors: 戚彩霞; 银宇
Original assignee: 华为技术有限公司
Priority date: 2010-09-20
Filing date: 2011-05-30
Publication date: 2011-12-01
Also published as: CN101945362A

Abstract

The embodiments of the present invention provide a method, an apparatus and a communication system for processing network messages. The method includes: receiving a first network message sent by an access node of a visited network, wherein the first network message is provided with a first version format (101); converting the first network message into a second network message, wherein the second network message is provided with a second version format (102); and sending the second network message to a data gateway of a home network (103). The embodiments of the present invention arrange a gateway (GW) equipment between a next generation mobile communication network and a second generation / third generation (2G/3G) mobile communication network, and perform, through the GW equipment, version format conversion for the network messages that are transmitted between the next generation mobile communication network and the 2G/3G mobile communication network, without improving the functions of current each network element equipment in the next generation mobile communication network and the 2G/3G mobile communication network, thus reducing costs of network deployment and operation of operators.

Description

Network message processing method, device and communication system The application is filed on September 20, 2010, the Chinese Patent Office, the application number is 201010295164. 3 , the invention name is "network message processing method, device and communication system" Chinese patent application Priority is hereby incorporated by reference in its entirety. Technical field

The embodiments of the present invention relate to communication technologies, and in particular, to a network message processing method, apparatus, and communication system.

Background technique

With the continuous evolution of the network, the existing mature 2G/3G mobile communication networks are gradually developing into the next generation mobile communication networks. For example, the 2G/3G mobile communication network can be a Global System for Mobile Communications (GSM) network, a General Packet Radio Service (hereinafter referred to as GPRS) network, or a universal mobile communication. The system (Universal Mobile Telecommunications System, hereinafter referred to as UMTS) network, the next-generation mobile communication network may be an Evolved Packet System (hereinafter referred to as EPS) network.

Figure 1 is a network architecture diagram of a 2G/3G mobile communication network. As shown in Figure 1, a user equipment (User Equipment, hereinafter referred to as UE) passes through a local radio access network, such as a universal terrestrial radio access network (Universal Terrestrial Radio). Access Network, hereinafter referred to as: UTRAN) access, the mobility management network element serves as the aggregation point of the access network, and is responsible for access technology related connection management and data forwarding. The mobility management network element is also called an access node. 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). 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, The mobility management network element is responsible for the location management, connection management, security authentication, and gateway selection of the user equipment. 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. Operators of 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.

Summary of the invention

The embodiment of the invention provides a network message processing method, device and communication system, which solves the problem of high network deployment and operation cost when the next generation mobile communication network and the 2G/3G mobile communication network are intercommunicated.

The embodiment of the invention provides a network message processing method, including:

Receiving a first network message sent by an access node of the visited network, where the first network message has a first version format;

Converting the first network message into a second network message, where the second network message has a second version format;

Sending the second network message to a data gateway of the home network.

An embodiment of the present invention provides another network message processing method, including:

Receiving a message sent by the user equipment, where the message includes user information; Obtaining, according to the user information, address information of a gateway device capable of converting a first network message into a second network message, where the first network message has a first version format, and the second network message has a second version format;

Sending the first network message to a gateway device corresponding to the address information

The embodiment of the invention provides a gateway device, the gateway device and a next generation mobile communication network and

The 2G/3G mobile communication network is connected, and the gateway device includes:

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

a first receiving module, configured to: when the visited network is a 2G/3G mobile communication network, and the home network is a next-generation mobile communication network, the SGSN that is the GGSN receiving the visited network sends the first network message, where the first network message has the first a version processing module, 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, and a first sending module, configured to: The second network message is sent by the SGW to the PGW of the home network.

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, and 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;

And a second sending module, configured to send the first network message to a gateway device corresponding to the address information.

A further embodiment of the present invention provides a communication system, including: a next-generation mobile communication network connected in sequence Network equipment, gateway equipment and 2G/3G mobile communication network equipment connection;

The gateway device 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 is the PGW receiving the visited network sends the first network message, where the first network message has the first a version format; converting the first network message into a second network message, the second network message having a second version format; and transmitting the second network message to the GGSN of the home network as the SGSN; or

When the visited network is a 2G/3G mobile communication network, and the home network is a next-generation mobile communication network, the SGSN that receives the visited network as the GGSN sends the first network message, where the first network message has the first version format; The first network message is converted into a second network message, and 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.

In the embodiment of the present invention, 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.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

Figure 1 is a network architecture diagram of a 2G/3G mobile communication network;

2 is a network architecture diagram of a next generation mobile communication network;

3 is a flowchart of Embodiment 1 of a network message processing method according to the present invention;

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;

6 is a flowchart of Embodiment 4 of a network message processing method according to the present invention;

7 is a schematic structural diagram of an embodiment of a gateway device according to the present invention;

8 is a schematic structural diagram of an embodiment of an access node 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.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of 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.

In the 2G/3G mobile communication network shown in FIG. 1, 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

When roaming between the next-generation mobile communication network of the GTPv2 protocol and the 2G/3G network of the GTPvl protocol, the UE needs to access from the radio access network of the visited network, and connect to the data gateway located in the home network through the mobile management network element of the visited network. . In order to avoid major changes to the already mature 2G/3G mobile communication network, when the visited network is a next-generation mobile communication network and the home network is a 2G/3G mobile communication network, the S4 SGSN in the visited network must support the GTPvl protocol. 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.

To this end, 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.

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.

Specifically, if the home network of the UE is a next-generation mobile communication network, and the current visited network is a 2G/3G mobile communication 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.

Specifically, if the GW device receives the first network message in the GTPv1 format sent by the 2G/3G mobile communication network, 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.

In this embodiment, whether 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.

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.

Specifically, if the GW device converts the first network message in the GTPv1 format to the second network message in the GTPv2 format, 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.

The technical solutions of the present invention will be described in detail below using several specific embodiments.

4 is a signaling flowchart of a second embodiment of a network message processing method according to the present invention. As shown in FIG. 4, in this embodiment, a home network of a UE is a 2G/3G mobile communication network, and 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.

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.

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) and Terminal Equipment (hereinafter referred to as TE) responsible for running end-to-end high-level applications. If the MT and the TE are separate devices, the Activate PDP Context Request message is sent by the MT.

Step 202: The S4 SGSN sends a setup session request message to the SGW.

The S4 SGSN can 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 and the GTP version supported by the home network, and the S4 SGSN learns from the correspondence table that the UE's home network only supports GTPv1. The S4 SGSN further obtains the address of the configured GW device, and the GW device has a conversion function between the GTPvl protocol and the GTPv2 protocol.

Alternatively, the S4 SGSN can obtain the correspondence and the address of the GW device from other network devices.

Alternatively, 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). The S4 SGSN can pass the default operator identifier (Operator Identifier, hereinafter referred to as OI). 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.

In addition, 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. . In this embodiment, the GW device serves as the PGW of the SGW and also serves as the Gn/Gp SGSN of the GGSN to the UE.

In this embodiment, 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.

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.

Optionally, 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.

Step 206: The GW device sends a setup session response message to the SGW in the visited network of the U E. Specifically, the GW device converts the setup PDP context response message in the GTPv1 format to

The session response message is established in the GTPv2 format, and the setup session response message is sent to the SGW.

Step 207: The SGW sends a setup session response message to the S4 SGSN.

Step 208: The S4 SGSN establishes a radio bearer with the UE through the UTRAN/GERAN network.

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 210: The SGW sends an update bearer response message to the S4 SGSN.

Step 211: The S4 SGSN sends an Activate PDP Context Response message to the UE through the UTRAN/GERAN network.

If the MT and TE are separated, 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.

Step 221: The GW device sends an update bearer notification message to the SGW.

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 222: The SGW sends an update bearer notification message to the S4 SGSN.

Step 223: The S4 SGSN sends an update bearer notification message to the UE.

If the MT is separated from the TE, 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.

It should be noted that the 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. In the case that the home network of the UE is a 2G/3G mobile communication network, and 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. As shown in FIG. 5, in this embodiment, a visited network of a UE is a 2G/3G mobile communication network, and a home network is a next-generation mobile communication network. . The access node of the visited network Gn/Gp SGSN supports GTPvl, and 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.

If the MT and TE are separate devices, 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.

After receiving the setup PDP context request message, the GW device converts the setup PDP context request message in the GTPv1 format into the setup session request message in the GTPv2 format. After receiving the PDP context request message in the GTPv1 format, the GW device obtains the IP address of the PGW through the DNS according to the user information carried in the message, such as the APN. The GW device can also obtain the PGW in the UE's home province through the DNS according to the APN and the replacement OI.

The replacement OI can be stored on the GW device, or the GW device can be obtained from other devices.

In this embodiment, 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.

Optionally, 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.

Specifically, the GW device may convert the setup session response message in the GTPv2 format to

The PDP context response message is established in the GTPvl format, and the setup PDP context response message is sent to the Gn/Gp SGSN.

Step 306: The Gn/Gp SGSN establishes a radio bearer with the UE through the UTRAN/GERAN network. Step 307: The Gn/Gp SGSN sends an update PDP context request message to the GW device.

The update PDP context request message may contain the negotiated quality of service ( Quality of

Service, hereinafter referred to as: QoS) parameter and / or direct tunnel indication, and the update PDP context request message has the GTPvl format. The negotiated QoS parameters are used to change the QoS, and the direct tunnel indication is used to notify the GW device to establish a user plane direct link with the access network.

Step 308: The GW device sends an update PDP context response message to the Gn/Gp SGSN.

If the updated PDP context request message in step 307 includes the negotiated QoS information, the updated context response message may further include information indicating that the QoS change is accepted or information indicating that the QoS change is rejected.

Step 309: The Gn/Gp SGSN sends an activation PDP to the UE through the UTRAN/GERAN network. The response message below.

Step 310: The UE sends a DHCP discovery message to the GW device.

If the UE needs to obtain the IP address information through the DHCP mode, 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.

The update PDP context notification message includes the IP address information of the UE sent by the DHCP server to the GW device in step 312.

Step 319: The Gn/Gp SGSN sends a modify PDP context notification message to the UE.

If the MT is separated from the TE, the Gn/Gp SGSN notifies the MT of the IP address information. At this point, the MT can obtain the IP address information.

Step 320: The UE sends a modify PDP context response message to the Gn/Gp SGSN.

Step 321: The Gn/Gp SGSN sends an update PDP context response message to the GW device.

In this embodiment, the PGW can also implement the function of the DHCP server.

The method provided in this embodiment deploys a GW device between a next-generation mobile communication network and a 2G/3G mobile communication network. In the case where the UE's home network is a next-generation mobile communication network and the visited network is a 2G/3G mobile communication network, the next-generation mobile communication network and 2G/3G mobile communication are passed through the GW device. The network message transmitted between the network is formatted, so that there is no need to improve the functions of the existing network elements in the next-generation mobile communication network and the 2G/3G mobile communication network, thereby reducing the network deployment and operation of the operator. cost.

FIG. 6 is a flowchart of Embodiment 4 of a network message processing method according to the present invention. As shown in FIG. 6, the method in this embodiment may include:

Step 401: Receive a message sent by a user equipment.

The message contains user information.

For example, if the home network of the UE is a next-generation mobile communication network, and the current visited network is a 2G/3G mobile communication network, the Gn/Gp SGSN may receive a message sent by the UE, and the message may be the step in FIG. 5 above. The Activate PDP Context Request message shown in 301.

If the home network of the UE is a 2G/3G mobile communication network, and the current visited network is a next-generation mobile communication network, the S4 SGSN may receive the message sent by the UE, and the message may be the activated PDP shown in step 201 in FIG. 4 above. Context request message.

The activated PDP context request message may include user information of the UE, such as the IMSI of the UE. Step 402: Acquire, according to the user information, address information of a gateway device capable of converting the first network message into the second network message.

The first network message has a first version format and the second network message has a second version format. Specifically, the S4 SGSN or the Gn/Gp SGSN may determine the home network information of the user equipment according to the user information, and obtain the address information of the gateway device according to the home network information.

For example, 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. Or, the S4 SGSN can be obtained from other network devices. The correspondence. For example, the correspondence table 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. For example, 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, and the first network message sent by the Gn/Gp SGSN may be a PDP context request message.

For the specific implementation process of the method in this embodiment, refer to the specific execution steps of the S4 SGSN in the signaling flowchart shown in FIG. 4 and the specific execution steps of the Gn/Gp SGSN in the signaling flowchart shown in FIG. I will not repeat them here.

The method provided in this embodiment deploys a GW device between a next-generation mobile communication network and a 2G/3G mobile communication network. In the case that the UE's home network is a 2G/3G mobile communication network and the visited network is a next-generation mobile communication network, the selection of the GW device by the S4 SGSN or the Gn/Gp SGSN may enable the selected GW device to be used for the next generation mobile communication. The network message transmitted between the network and the 2G/3G mobile communication network is format-converted, thereby reducing the operation of the network element devices in the next-generation mobile communication network and the 2G/3G mobile communication network. Network deployment and operational costs.

The embodiment of the present invention further provides a gateway device, where the gateway device is connected to a next-generation mobile communication network and a 2G/3G mobile communication network; and the gateway device is configured to: if the user equipment accesses the GGSN of the home location through the next-generation mobile communication network Then, as the PGW terminates the visited place and connects to the home as the Gn/Gp SGSN; if the user equipment accesses the PGW of the home location through the 2G/3G mobile communication network, the GGSN terminates the visited place and connects to the home location as the SGW.

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.

FIG. 7 is a schematic structural diagram of an embodiment of a gateway device according to the present invention. As shown in FIG. 7, the gateway device in this embodiment is connected to a next-generation mobile communication network and a 2G/3G mobile communication network, and the gateway device includes: The first receiving module 1 1 is used to: if the visited network is a next-generation mobile communication network, and the home network is a 2G/3G mobile communication network, the first receiving module 1 1 is used for: The SGW that is the PGW receiving the visited network sends the first network message, where the first network message has a first version format, and the conversion processing module 12 is configured to convert the first network message received by the first receiving module 11 For the second network message, the second network message has a second version format; the first sending module 13 is configured to send the second network message to the GGSN of the home network as the SGSN; or, the first receiving module 1 1 When the visited network is a 2G/3G mobile communication network, and the home network is a next-generation mobile communication network, the SGSN that receives the visited network as the GGSN sends the first network message, and the first network message has the first version format; the conversion processing module 12 for converting the first network message received by the first receiving module 11 into a second network message, where the second network message has a second version format; A sending module 13 is configured to send the second network message as a SGW to the PGW of the home network.

The gateway device in this embodiment may be used to perform the method in the method embodiment shown in FIG. 3, and the implementation principle and the technical effect are similar, and details are not described herein again.

In another embodiment of the gateway device of the present invention, the first receiving module 11 is specifically configured to receive a setup session request message sent by a serving gateway in the visited network. The conversion processing module is specifically configured to convert the setup session request message into an establishment context. The first sending module is configured to send the setup context request message to the GGSN in the home network; more specifically, the first sending module first sending module 13 is configured to: according to the establishment context request message The included user information determines that the user is a roaming user, and sends the establishment context request message to the GGSN of the home network.

The gateway device in this embodiment may be used to perform the method in the method embodiment shown in FIG. 4, and the implementation principle and the technical effect are similar, and details are not described herein again.

In a further embodiment of the gateway device of the present invention, the first receiving module 11 is specifically configured to receive a setup context request message sent by the SGSN in the visited network. The first receiving module 11 is further configured to receive the transmission between the user equipment and the DHCP server. The DHCP message is used by the first sending module to send a DHCP message transmitted between the user equipment and the DHCP server. The conversion processing module 12 is specifically configured to use the The establishment of the context request message is converted into a session establishment request message. The first sending module 13 is specifically configured to send the establishment session request message to the message data network gateway in the home network.

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.

FIG. 8 is a schematic structural diagram of an embodiment of an access node device according to the present invention. As shown in FIG. 8, the access node device in this embodiment may include: a second receiving module 21, an obtaining module 22, and a second sending module 23, where The second receiving module 21 is configured to receive a message sent by the user equipment, where the message includes user information, and the acquiring module 22 is configured to obtain, according to the user information, a gateway that can convert the first network message into a second network message. The address information of the device, the first network message has a first version format, and the second network message has a second version format. Specifically, 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. As shown in FIG. 9, 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. Translating the first network message into a second network message, where the second network message has a second version format; and sending the second network message to the GGSN of the home network as an SGSN; or The network is a 2G/3G mobile communication network. When 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.

The communication system of this embodiment may be specifically used to perform the method of the method embodiment shown in FIG. 4 or FIG. 5, and the implementation principle and the technical effect are similar, and details are not described herein again.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk. It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Claim

A network message processing method, comprising:

Sending the second network message to a data gateway of the home network.

The network message processing method according to claim 1, wherein the receiving the first network message sent by the access node of the visited network comprises:

Receiving a setup session request message sent by a service gateway in the visited network;

The converting the first network message into the second network message includes:

Converting the setup session request message into a setup context request message;

Sending the second network message to the data gateway of the home network, including:

The setup context request message is sent to the GGSN in the home network.

The network message processing method according to claim 2, wherein the sending the context request message to the GGSN in the home network comprises:

And if the user is the roaming user according to the user information included in the session establishment request message, the establishment context request message is sent to the GGSN of the home network.

The network message processing method according to claim 2 or 3, wherein after the establishing the context request message is sent to the GGSN in the home network, the method further includes:

Receiving a setup context response message sent by the GGSN in the home network, where the setup context response message has a second version format;

Converting the setup context response message to a setup session response message and transmitting the setup session response message to a serving gateway in the visited network, the setup session response message having a first version format.

Receiving a setup context request message sent by the SGSN in the visited network;

Converting the establishment context request message into a setup session request message;

Sending the setup session request message to the message data network gateway in the home network.

The network message processing method according to claim 5, wherein the sending the session request message to the message data network gateway in the home network comprises:

Determining the address information of the packet data network gateway of the home network according to the user information included in the establishment session request message, and sending the establishment session request message to the message data network gateway corresponding to the address information; or ,

Determining the address information of the packet data network gateway of the home network according to the replacement operator identifier and the user information included in the setup session request message, and sending the setup session request message to the packet corresponding to the address information Data network gateway.

The network message processing method according to claim 5 or 6, wherein after the establishing the session request message is sent to the packet data network gateway in the home network, the method further includes:

Receiving a setup session response message sent by the packet data network gateway in the home network, where the establishment session response message has a second version format;

Transmitting the setup session response message to a setup context response message and transmitting the setup context response message to the SGSN in the visited network, the setup context response message having a first version format.

The network message processing method according to claim 7, wherein after the sending the context response message to the SGSN in the visited network, the method further includes:

Receiving an update context request message sent by the SGSN in the visited network, where the update context request message includes a negotiated quality of service parameter and/or a direct tunnel indication and the update context is requested The message is requested to have a first version format; an update context response message is sent to the SGSN in the visited network, the update context response message having a first version format.

The network message processing method according to claim 8, wherein, if the updated context request message includes the negotiated quality of service parameter, the update context response message further includes Information that is changed or used to indicate a denial of service quality change.

The network message processing method according to claim 9, wherein after the sending the context response message to the SGSN in the visited network, the method further includes:

The DHCP message transmitted between the user equipment and the packet data network gateway is forwarded.

The network message processing method according to claim 10, after the forwarding of the DHCP message transmitted between the user equipment and the message data network gateway, the method further includes: sending the SGSN to the SGSN in the visited network Updating a context request message, where the update context request message includes address information of the user equipment;

12. A network message processing method, comprising:

Receiving a message sent by the user equipment, where the message includes user information;

Obtaining, according to the user information, address information of a gateway device capable of converting a first network message into a second network message, where the first network message has a first version format, and the second network message has a second version format;

Sending the first network message to a gateway device corresponding to the address information.

The network message processing method according to claim 12, wherein the obtaining the address information of the gateway device capable of converting the first network message into the second network message according to the user information comprises:

Determining the home network information of the user equipment according to the user information;

Obtaining address information of the gateway device according to the home network information.

The network message processing method according to claim 13, wherein: according to said return The network information is obtained, and the address information of the gateway device is obtained, including:

Obtaining, from the mapping between the stored home network and the version format supported by the home network, the version format information corresponding to the home network information, and acquiring the address information of the gateway device according to the version format information; or ,

The version format information corresponding to the home network information is queried from the corresponding relationship table stored in the domain name server, and the address information is obtained according to the version format information.

15. A gateway device, characterized in that the gateway device and a next generation mobile communication network and

The gateway device according to claim 15, wherein the first receiving module is specifically configured to receive a setup session request message sent by a serving gateway in the visited network; the conversion processing module is specifically configured to: The establishment of the session request message is converted into a context request message. The first sending module is specifically configured to send the setup context request message to the GGSN in the home network.

The gateway device according to claim 16, wherein the first sending module is specifically configured to learn, according to the user information included in the establishment context request message, that the user is roaming The user sends the setup context request message to the GGSN of the home network.

The gateway device according to claim 15, wherein the first receiving module is specifically configured to receive a setup context request message sent by an SGSN in a visited network; the conversion processing module is specifically configured to: The context request message is converted into a session establishment request message; the first sending module is specifically configured to send the establishment session request message to a message data network gateway in the home network.

The gateway device according to claim 18, wherein the first receiving module is further configured to receive a DHCP message transmitted between the user equipment and the DHCP server; the first sending module is further configured to send the user equipment. DHCP messages transmitted between the DHCP server and the DHCP server.

The gateway device according to claim 19, wherein the first sending module is further configured to send an update context request message to the SGSN in the visited network, where the update context request message includes the user Address information of the device; the first sending module is further configured to receive an update context response message sent by the SGSN in the visited network.

An access node device, comprising:

The access node device according to claim 21, wherein the acquiring module comprises:

a determining unit, configured to determine, according to the user information, home network information of the user equipment, and an acquiring unit, configured to obtain, from a correspondence table between the stored home network and a version format supported by the home network, The version format information corresponding to the home network information, the address information of the gateway device is obtained according to the version format information; or the corresponding information stored on the domain name server In the relationship table, the version format information corresponding to the home network information is queried, and the address information is obtained according to the version format information.

A communication system, comprising: a next-generation mobile communication network device, a gateway device, and a 2G/3G mobile communication network device connected in sequence;

The gateway device is configured to: if the visited network is a next-generation mobile communication network, the home network is

In the 2G/3G mobile communication network, the SGW that receives the visited network as the PGW transmits the 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, where the The second network message has a second version format; and sends the second network message to the GGSN of the home network as the SGSN; or