CN101795478A - Method for data bypass, network side equipment and access gateway - Google Patents

Abstract

An embodiment of the present invention provides a data bypass method, a network side device, and an access gateway. The data bypass method includes: the network side device receives a first request message sent by the user equipment; the network side device determines the After the access point name in the first request message is the access point name identifying the bypass service, modify the access point name identifying the bypass service to the access point name pointing to the GGSN; the network side device Sending a second request message to the GGSN, where the second request message carries the name of the access point pointing to the GGSN, so as to establish a tunnel between the access gateway and the GGSN; the GGSN is associated with the access gateway The deployed GGSN or the GGSN integrated with the access gateway. The embodiment of the present invention realizes the function of the access gateway supporting data bypass.

Description

Data bypass method, network side device and access gateway

technical field

The embodiments of the present invention relate to the technical field of communications, and in particular, to a data bypass method, network side equipment and access gateway.

Background technique

An Access Point (hereinafter referred to as: AP) is a network device that provides wireless access services for families or businesses based on a fixed Internet Protocol (Internet Protocol; hereinafter referred to as: IP) transmission network.

User Equipment (hereinafter referred to as: UE) can access the AP through the air interface, and the AP accesses the IP transmission network through the home gateway (Home Gateway; hereinafter referred to as: HGW), and then connects to the security network in the mobile core network through the IP transmission network. The gateway (Security Gateway; hereinafter referred to as: SeGW), and then connected to the access gateway (Access Gateway; hereinafter referred to as: AG), and then the AG is connected to the circuit switched (Circuit Switched; hereinafter referred to as: CS) domain core network and packet switched ( Packet Switched; hereinafter referred to as: PS) domain core network.

If the UE accesses the Internet through the AP, it needs to connect to the Internet through the Gi interface of the Gateway General Packet Radio Service Support Node (Gateway General Packet Radio Service Support Node; hereinafter referred to as: GGSN) network element of the PS domain core network.

Existing data bypass solutions are generally implemented through the Gi interface provided by the AP, that is, the AP provides the Gi interface, and then the UE accesses the home network or the Internet directly through the Gi interface of the AP; at this time, the UE accesses the home network. The data flow of the network or the Internet does not need to pass through the mobile core network, that is, the data flow of the UE accessing the home network or the Internet no longer passes through the GGSN and the Service General Packet Radio Service Support Node (hereinafter referred to as: SGSN), to achieve The purpose of data bypass.

However, the existing data bypass solutions are generally implemented through the Gi interface provided by the AP, and the existing technology does not provide a method for realizing data bypass through the AG; in addition, the existing data bypass through the AP The scheme does not support lawful interception of bypass traffic, nor does it support accounting for bypass traffic.

Contents of the invention

Embodiments of the present invention provide a data bypass method, a network side device and an access gateway, so as to realize the function of the access gateway supporting data bypass.

An embodiment of the present invention provides a data bypass method, including:

The network side device receives a first request message sent by the user equipment, where the first request message carries an access point name identifying the bypass service;

After the network side device determines that the access point name in the first request message is the access point name identifying the bypass service, it modifies the access point name identifying the bypass service to point to the gateway general packet radio service The access point name of the support node GGSN;

The network side device sends a second request message to the GGSN, and the second request message carries the name of the access point pointing to the GGSN, so as to establish a tunnel between the access gateway and the GGSN; the GGSN It is the GGSN jointly deployed with the access gateway or the GGSN integrated with the access gateway.

The embodiment of the present invention also provides a network side device, including:

A receiving module, configured to receive a first request message sent by a user equipment, where the first request message carries an access point name identifying a bypass service;

A determining module, configured to determine that the access point name in the first request message received by the receiving module is the access point name identifying the bypass service;

A modifying module, configured to, after the determining module determines that the access point name in the first request message received by the receiving module is the name of the access point identifying the bypass service, change the access point identifying the bypass service to The name is changed to point to the access point name of the Gateway General Packet Radio Service Support Node GGSN;

A sending module, configured to send a second request message to the GGSN, the second request message carrying the name of the access point pointing to the GGSN, so as to establish a tunnel between the access gateway and the GGSN; the GGSN It is the GGSN jointly deployed with the access gateway or the GGSN integrated with the access gateway.

The embodiment of the present invention also provides a data bypass method, including:

Receiving a first request message sent by a serving general packet radio service support node SGSN, where the first request message carries an access point name identifying a bypass service; the first request message is that the SGSN receives the The first request message is sent after determining that the access point name in the first request message is the access point name identifying the bypass service;

Sending a second request message to the gateway general packet radio service support node GGSN, where the second request message carries the name of the access point identifying the bypass service;

receiving a response message corresponding to the second request message sent by the GGSN, and sending the response message to the SGSN, so as to establish a tunnel between the access gateway and the GGSN; The GGSN jointly deployed by the ingress gateway or the GGSN integrated with the access gateway.

The embodiment of the present invention also provides an access gateway, including:

The message receiving module is configured to receive the first request message sent by the serving general packet radio service support node SGSN, the first request message carries the name of the access point identifying the bypass service; the first request message is received by the SGSN receiving the first request message sent by the user equipment, and sending it after determining that the access point name in the first request message is the access point name identifying the bypass service;

A message sending module, configured to send a second request message to a gateway general packet radio service support node GGSN, where the second request message carries the name of the access point identifying the bypass service;

The message receiving module is further configured to receive a response message sent by the GGSN and corresponding to the second request message;

The message sending module is further configured to send the response message to the SGSN, so as to establish a tunnel between the access gateway and the GGSN; the GGSN is a GGSN jointly deployed with the access gateway or a The GGSN integrated with the above-mentioned access gateway.

Through the embodiment of the present invention, after the access gateway or the serving GPRS support node determines that the access point name in the first request message is the access point name identifying the bypass service, it sends the second request message to the GGSN, so that Establish a tunnel between the access gateway and the GGSN; wherein, the GGSN is a GGSN deployed jointly with the access gateway or a GGSN integrated with the access gateway. Therefore, the access gateway can directly send the bypass traffic to the GGSN jointly deployed with the access gateway or the GGSN integrated with the access gateway, and then the above GGSN sends the bypass traffic to the home network or the Internet, realizing the support of the access gateway The function of data bypass, and realize the function of charging and/or lawful interception of the bypass business.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a flow chart of Embodiment 1 of the data bypass method of the present invention;

FIG. 2 is a flow chart of Embodiment 2 of the data bypass method of the present invention;

FIG. 3 is a flow chart of Embodiment 3 of the data bypass method of the present invention;

FIG. 4 is a flow chart of Embodiment 4 of the data bypass method of the present invention;

FIG. 5 is a flow chart of Embodiment 5 of the data bypass method of the present invention;

FIG. 6 is a schematic structural diagram of Embodiment 1 of the network side device of the present invention;

FIG. 7 is a schematic structural diagram of Embodiment 1 of the access gateway of the present invention;

FIG. 8 is a schematic diagram of Embodiment 1 of the data bypass system of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Fig. 1 is a flow chart of Embodiment 1 of the data bypass method of the present invention. As shown in Fig. 1, the data bypass method may include:

Step 101, the network side device receives a first request message sent by a user equipment, where the first request message carries an access point name identifying a bypass service.

In this embodiment, the first request message may be an activation packet data protocol (Packet Data Protocol; hereinafter referred to as: PDP) context request message.

Step 102: After determining that the AP name in the first request message is the AP name identifying the bypass service, the network side device modifies the AP name identifying the bypass service to the AP name pointing to the GGSN.

Specifically, the network side device may compare the access point name in the first request message with the pre-configured access point name identifying the bypass service; if the access point name in the first request message is different from the pre-configured If the names of the access points identifying the bypass service are the same, it may be determined that the name of the access point in the first request message is the name of the access point identifying the bypass service.

In this embodiment, the network side device is locally configured with an IP address corresponding to the access point name pointing to the GGSN, and the IP address is the IP address of the GGSN; according to the above access point name pointing to the GGSN, the network side device can obtain the The IP address of the GGSN.

In this embodiment, unless otherwise specified, the GGSN is a GGSN deployed jointly with the access gateway or a GGSN integrated with the access gateway, as shown in FIG. 8, the first GGSN 85 in FIG. The deployed GGSN or the GGSN integrated with the access gateway. Wherein, the GGSN jointly deployed with the access gateway includes a GGSN directly connected to the access gateway, or a GGSN connected to the access gateway through a router or a switch.

Step 103, the network side device sends a second request message to the GGSN, the second request message carries the name of the access point pointing to the GGSN, so as to establish a tunnel between the access gateway and the GGSN; further, it is also convenient for the GGSN to Bypass traffic for billing and/or lawful interception.

In this embodiment, the network side device may be an SGSN or an access gateway. When the network side device is an access gateway, sending the second request message to the GGSN may be: the access gateway sends the access point name pointing to the GGSN to the serving general packet radio service support node SGSN through the first request message, so that the The SGSN sends the second request message to the GGSN according to the access point name pointing to the GGSN. Wherein, according to the access point name pointing to the GGSN, the SGSN can obtain the IP address of the GGSN, and then the SGSN can send the second request message to the GGSN according to the IP address of the GGSN.

In this embodiment, the tunnel between the access gateway and the GGSN can be a direct tunnel (Directtunnel), that is, through the tunnel, the access gateway can directly send the bypass traffic to the GGSN, so that the bypass traffic does not need to go through the SGSN .

The GGSN in this embodiment can perform charging and/or lawful interception on the bypass service. Specifically, the GGSN may collect the charging information of the bypass service, generate a call detail record according to the charging information, and send the call detail record to the charging system through the charging gateway functional entity; and/or,

The GGSN can receive the interception control information sent by the legal interception gateway, and intercept the communication information of the user equipment according to the interception control information, and send the intercepted communication information of the user equipment to the above-mentioned legal interception gateway; the above-mentioned interception control Messages include listener active, listener off, or status queries.

In this embodiment, the above-mentioned second request message may be a PDP context creation request message.

In the above embodiment, after the access gateway or SGSN determines that the access point name in the first request message is the access point name identifying the bypass service, it modifies the access point name identifying the bypass service to point to the access point of the GGSN Point the name, and send a second request message to the GGSN to establish a tunnel between the access gateway and the GGSN; wherein, the GGSN is a GGSN deployed jointly with the access gateway or a GGSN integrated with the access gateway. Therefore, the access gateway can directly send the bypass traffic to the GGSN jointly deployed with the access gateway or the GGSN integrated with the access gateway, and then the above GGSN sends the bypass traffic to the home network or the Internet, realizing the support of the access gateway The function of data bypass; and the above embodiment realizes the function of charging and/or lawful interception on the bypass service.

FIG. 2 is a flow chart of Embodiment 2 of the data bypass method of the present invention. In this embodiment, the first request message is an activation PDP context request message, and the second request message is a PDP context creation request message as an example for illustration.

As shown in Figure 2, the data bypass method may include:

Step 201, when the UE has a service to initiate, it sends an activation PDP context request message to the AG, and the activation PDP context request message carries an Access Point Name (AccessPoint Name; hereinafter referred to as: APN) identifying the bypass service to access the bypass service .

In step 202, after the AG determines that the APN in the activation PDP context request message is the APN identifying the bypass service, it modifies the APN identifying the bypass service to the APN pointing to the GGSN, and performs step 203.

Specifically, the AG can compare the APN in the activation PDP context request message with the preconfigured APN identifying the bypass service; if the APN in the activating PDP context request message is the same as the preconfigured APN identifying the bypass service, then It may be determined that the APN in the activate PDP context request message is the APN identifying the bypass service.

In this embodiment, the AG is locally configured with an IP address corresponding to the name of the access point pointing to the GGSN, and the IP address is the IP address of the GGSN.

In this embodiment, unless otherwise specified, the GGSN is a GGSN jointly deployed with the AG or a GGSN integrated with the AG. As shown in FIG. 8, the first GGSN 85 in FIG. GGSN integrated with access gateway. Wherein, the GGSN jointly deployed with the AG includes a GGSN directly connected to the AG, or a GGSN connected to the AG through a router or a switch.

In addition, if the AG determines that the APN in the Activation PDP Context Request message is not the APN that identifies the bypass service, the AG can process the Activation PDP Context Request message according to the normal process, transparently transmit the Activation PDP Context Request message to the SGSN, and follow the The normal PDP context activation process proceeds with subsequent processes.

In step 203, the AG sends an activation PDP context request message to the SGSN, and the activation PDP context request message carries an APN pointing to the GGSN.

Step 204, SGSN carries out user subscription information inspection according to the APN in the activation PDP context request message; After the APN in the activation PDP context request message is checked by the user subscription information of SGSN, SGSN selects GGSN according to the APN in the activation PDP context request message, It then sends a Create PDP Context Request message to the selected GGSN.

In this embodiment, the user subscription information includes a wild card APN (wild card APN), so the APN pointing to the GGSN in the activation PDP context request message will pass the user subscription information check of the SGSN. After the APN pointed to the GGSN in the Activate PDP Context Request message passes the user subscription information check of the SGSN, the SGSN can select the GGSN jointly deployed with the AG or the GGSN integrated with the AG according to the APN pointed to the GGSN in the Activate PDP Context Request message, and The APN pointing to the GGSN obtains the IP address of the GGSN, and then sends a PDP context creation request message to the selected GGSN according to the obtained IP address.

In step 205, the GGSN sends a create PDP context response message to the SGSN.

Step 206, optionally, the SGSN triggers the process of establishing a radio access bearer (Radio Access Bearer; RAB for short).

In step 207, the SGSN determines that the direct tunnel (Direct tunnel) function has been opened, and the SGSN sends an update PDP context request message to the GGSN, so as to establish a tunnel between the AG and the GGSN. In this embodiment, the tunnel between the AG and the GGSN is a direct tunnel (Direct tunnel), that is, through the tunnel, the AG can directly send the bypass traffic to the GGSN, so that the bypass traffic does not need to pass through the SGSN again.

In step 208, the GGSN sends an update PDP context response message to the SGSN.

In step 209, the SGSN sends an Activation PDP Context Accept message to the UE.

At this time, the AP can send the bypass traffic to the AG, and then the AG sends the bypass traffic to the GGSN, and then the GGSN sends the bypass traffic to the home network or the Internet.

In the above embodiment, after the AG determines that the APN in the activation PDP context request message is the APN that identifies the bypass service, it modifies the APN that identifies the bypass service to the APN pointing to the GGSN, and forwards the activation PDP context request message to the SGSN to establish A tunnel between the AG and the GGSN, where the GGSN is a GGSN deployed jointly with the access gateway or a GGSN integrated with the access gateway. Therefore, the access gateway can directly send the bypass traffic to the GGSN jointly deployed with the access gateway or the GGSN integrated with the access gateway, and then the above GGSN sends the bypass traffic to the home network or the Internet, realizing AG support data bypass and further, the GGSN co-deployed with the access gateway or the GGSN integrated with the access gateway in the above embodiments can also implement the functions of charging and/or lawful interception of the bypass traffic.

FIG. 3 is a flow chart of Embodiment 3 of the data bypass method of the present invention. In this embodiment, the first request message is an activation PDP context request message, and the second request message is a PDP context creation request message.

As shown in Figure 3, the data bypass method may include:

Step 301, when the UE has a service to initiate, it sends an activate PDP context request message to the SGSN, and the activate PDP context request message carries an APN identifying the bypass service to access the bypass service.

Step 302: After determining that the APN in the activate PDP context request message is the APN identifying the bypass service, the SGSN modifies the APN identifying the bypass service to point to the APN of the GGSN.

Specifically, the SGSN can compare the APN in the activation PDP context request message with the pre-configured APN identifying the bypass service; if the APN in the activating PDP context request message is the same as the pre-configured APN identifying the bypass service, then It may be determined that the APN in the activate PDP context request message is the APN identifying the bypass service.

In this embodiment, the SGSN is locally configured with an IP address corresponding to the name of the access point pointing to the GGSN, and the IP address is the IP address of the GGSN.

In this embodiment, unless otherwise specified, the GGSN is a GGSN jointly deployed with the AG or a GGSN integrated with the AG. As shown in FIG. 8, the first GGSN 85 in FIG. GGSN integrated with access gateway. Wherein, the GGSN jointly deployed with the AG includes a GGSN directly connected to the AG, or a GGSN connected to the AG through a router or a switch.

In addition, if the SGSN determines that the APN in the activation PDP context request message is not the APN that identifies the bypass service, then the SGSN can process the activation PDP context request message according to the normal flow, send the creation PDP context request message to the GGSN in the core network, and Follow the normal PDP context activation process for subsequent processes.

Step 303, SGSN carries out user subscription information inspection according to the APN in the activation PDP context request message; After the APN in the activation PDP context request message is checked by the user subscription information of SGSN, SGSN selects GGSN according to the APN in the activation PDP context request message, It then sends a Create PDP Context Request message to the selected GGSN.

In this embodiment, the user subscription information includes wild card APN, so the APN pointing to the GGSN in the activation PDP context request message will pass the user subscription information check of the SGSN. After the APN in the Activate PDP Context Request message passes the user subscription information check of the SGSN, the SGSN can select the GGSN jointly deployed with the AG or the GGSN integrated with the AG according to the APN pointed to the GGSN in the Activate PDP Context Request message, and according to the APN pointed to the GGSN The APN obtains the IP address of the GGSN, and then sends a PDP context creation request message to the selected GGSN according to the obtained IP address.

In step 304, the GGSN sends a create PDP context response message to the SGSN.

Step 305, optionally, the SGSN triggers the process of establishing the RAB.

In step 306, the SGSN determines that the direct tunnel function is enabled, and the SGSN sends an update PDP context request message to the GGSN to establish a tunnel between the AG and the GGSN. In this embodiment, the tunnel between the AG and the GGSN is a direct tunnel, that is, through this tunnel, the AG can directly send the bypass traffic to the GGSN, so that the bypass traffic does not need to pass through the SGSN.

In step 307, the GGSN sends an update PDP context response message to the SGSN.

In step 308, the SGSN sends an Activation PDP Context Accept message to the UE.

At this time, the AP can send the bypass traffic to the AG, and then the AG sends the bypass traffic to the GGSN, and then the GGSN sends the bypass traffic to the home network or the Internet.

In the above embodiment, after the SGSN determines that the APN in the activation PDP context request message is the APN that identifies the bypass service, it modifies the APN that identifies the bypass service to the APN that points to the GGSN, and sends a create PDP context request message to the GGSN to establish A tunnel between the AG and the GGSN, where the GGSN is a GGSN deployed jointly with the access gateway or a GGSN integrated with the access gateway. Therefore, the access gateway can directly send the bypass traffic to the GGSN jointly deployed with the access gateway or the GGSN integrated with the access gateway, and then the above GGSN sends the bypass traffic to the home network or the Internet, realizing AG support data bypass and further, the GGSN co-deployed with the access gateway or the GGSN integrated with the access gateway in the above embodiments can also implement the functions of charging and/or lawful interception of the bypass traffic.

The embodiments shown in Figure 2 and Figure 3 of the present invention not only realize the function of AG supporting data bypass, further, in the embodiments shown in Figure 2 and Figure 3 of the present invention, the GGSN deployed jointly with the access gateway or the access The GGSN integrated in the gateway can also implement legal interception and charging of bypass services, and real-time charging. Specifically, the GGSN can count the charging information of the bypass service, generate call detail records (Calling Detail Records; hereinafter referred to as: CDR) according to the charging information, and then the GGSN sends the CDR to the charging gateway function (Charging Gateway Function; hereinafter Abbreviation: CGF) entity, and then the CGF entity sends the CDR to the charging system, so as to implement charging for the bypass service.

In addition, the GGSN can receive the interception control information sent by the Lawful Interception Gateway (Lawful Interception Gateway; hereinafter referred to as: LIG), and intercept the communication information of the UE according to the interception control information, and send the intercepted communication information of the UE sent to the LIG; the above-mentioned interception control information includes interception activation, interception deactivation, or status query; thereby realizing legal interception of the bypass service.

FIG. 4 is a flow chart of Embodiment 4 of the data bypass method of the present invention. As shown in FIG. 4, the data bypass method may include:

Step 401, receiving the first request message sent by the SGSN, the first request message carries the name of the access point identifying the bypass service; the first request message is that the SGSN receives the first request message sent by the user equipment, and determines the first request message The access point name in a request message is sent after identifying the access point name of the bypass service.

Specifically, the SGSN can compare the access point name in the first request message with the pre-configured access point name identifying the bypass service; if the access point name in the first request message and the pre-configured identification bypass service If the service access point names are the same, the SGSN may determine that the access point name in the first request message is the access point name identifying the bypass service. Then, the SGSN sends the first request message to the access gateway.

In this embodiment, the first request message may be a PDP context activation request message.

Step 402: Send a second request message to the GGSN, where the second request message carries the name of the access point identifying the bypass service.

In this embodiment, unless otherwise specified, the GGSN is a GGSN deployed jointly with the access gateway or a GGSN integrated with the access gateway, as shown in FIG. 8 . Wherein, the GGSN jointly deployed with the access gateway includes a GGSN directly connected to the access gateway, or a GGSN connected to the access gateway through a router or a switch.

Step 403: Receive a response message sent by the GGSN corresponding to the second request message, and send the response message to the SGSN, so as to establish a tunnel between the access gateway and the GGSN.

In this embodiment, after receiving the second request message sent by the access gateway, the GGSN sends a response message corresponding to the second request message to the access gateway, and then the access gateway sends the received response message to To the SGSN, so as to establish a tunnel between the access gateway and the GGSN; further, it is also convenient for the GGSN to perform charging and/or lawful interception on the bypass service.

In this embodiment, the tunnel between the access gateway and the GGSN is a direct tunnel (Directtunnel), that is, through the tunnel, the access gateway can directly send the bypass traffic to the GGSN, so that the bypass traffic does not need to pass through the SGSN.

The GGSN in this embodiment can perform charging and/or lawful interception on the bypass service. Specifically, the GGSN may collect the charging information of the bypass service, generate a call detail record according to the charging information, and send the call detail record to the charging system through the charging gateway functional entity; and/or,

The GGSN can receive the interception control information sent by the legal interception gateway, and intercept the communication information of the user equipment according to the interception control information, and send the intercepted communication information of the user equipment to the above-mentioned legal interception gateway; the above-mentioned interception Control messages include listener activation, listener deactivation, or status queries.

In this embodiment, the second request message may be a PDP context creation request message.

In the above embodiment, after the access gateway receives the first request message sent by the SGSN, it sends a second request message to the GGSN to establish a tunnel between the access gateway and the GGSN; wherein, the first request message is that the SGSN determines the first The access point name in the request message is sent after identifying the access point name of the bypass service, and the GGSN is the GGSN deployed jointly with the access gateway or the GGSN integrated with the access gateway. Therefore, the access gateway can directly send the bypass traffic to the GGSN jointly deployed with the access gateway or the GGSN integrated with the access gateway, and then the above GGSN sends the bypass traffic to the home network or the Internet, realizing the support of the access gateway The function of data bypass; and the above embodiment realizes the function of charging and/or legally intercepting the bypass service.

FIG. 5 is a flow chart of Embodiment 5 of the data bypass method of the present invention. In this embodiment, the first request message is an activation PDP context request message, and the second request message is a PDP context creation request message as an example for illustration.

As shown in Figure 5, the data bypass method may include:

Step 501, when the UE has a service to initiate, it sends an activate PDP context request message to the SGSN, and the activate PDP context request message carries an APN identifying the bypass service to access the bypass service.

In step 502, the SGSN checks the user subscription information according to the APN in the activate PDP context request message.

In this embodiment, the user subscription information includes wild card APN, so the APN in the activation PDP context request message will pass the user subscription information check of the SGSN.

Step 503: After determining that the APN in the activate PDP context request message is the APN identifying the bypass service, the SGSN sends a create PDP context request message to the AG.

Specifically, the SGSN can compare the APN in the activation PDP context request message with the pre-configured APN identifying the bypass service; if the APN in the activating PDP context request message is the same as the pre-configured APN identifying the bypass service, then It may be determined that the APN in the activate PDP context request message is the APN identifying the bypass service. After determining that the APN in the activate PDP context request message is the APN identifying the bypass service, the SGSN sends a create PDP context request message to the AG.

In this embodiment, unless otherwise specified, the GGSN is a GGSN jointly deployed with the AG or a GGSN integrated with the AG. As shown in FIG. 8, the first GGSN 85 in FIG. GGSN integrated with access gateway. Wherein, the GGSN jointly deployed with the AG includes a GGSN directly connected to the AG, or a GGSN connected to the AG through a router or a switch.

In addition, if the SGSN determines that the APN in the Activation PDP Context Request message is not the APN that identifies the bypass service, the SGSN can process the Activation PDP Context Request message according to the normal flow, send the Create PDP Context Request message to the GGSN in the core network, and follow the The normal PDP context activation process proceeds with subsequent processes.

In step 504, the AG sends a PDP context creation request message to the GGSN.

In step 505, the GGSN sends a create PDP context response message to the AG.

In step 506, the AG sends a create PDP context response message to the SGSN.

Step 507, optionally, the SGSN triggers the process of establishing the RAB.

In step 508, the SGSN judges that the direct tunnel function is enabled, and the SGSN sends an update PDP context request message to the AG, so as to establish a tunnel between the AG and the GGSN. In this embodiment, the tunnel between the AG and the GGSN is a direct tunnel, that is, through this tunnel, the AG can directly send the bypass traffic to the GGSN, so that the bypass traffic does not need to pass through the SGSN.

In step 509, the AG sends an update PDP context request message to the GGSN.

In step 510, the GGSN sends an update PDP context response message to the AG.

In step 511, the AG sends an update PDP context response message to the SGSN.

In step 512, the SGSN sends an Activation PDP Context Accept message to the UE.

At this time, the AP can send the bypass traffic to the AG, and then the AG sends the bypass traffic to the GGSN, and then the GGSN sends the bypass traffic to the home network or the Internet.

In the above embodiment, after the SGSN determines that the APN in the received Activation PDP Context Request message is the APN that identifies the bypass service, it sends a Create PDP Context Request message to the AG, and then the AG sends a Create PDP Context Request message to the GGSN, so as to establish The tunnel between the AG and the GGSN, where the GGSN is a GGSN jointly deployed with the AG or a GGSN integrated with the AG, so that the access gateway can directly send the bypass traffic to the GGSN jointly deployed with the access gateway or the GGSN integrated with the access gateway The integrated GGSN, and then the above-mentioned GGSN sends the bypass traffic to the home network or the Internet, realizing the function of the access gateway supporting data bypass; and further, the GGSN deployed jointly with the access gateway or the The GGSN integrated in the access gateway can also implement the function of charging and/or legally intercepting the bypass service, wherein the GGSN performs the charging and/or legally intercepting operation on the bypass service, which is the same as that shown in Figure 2 of the present invention. The operation of the GGSN performing charging and/or lawful interception on the bypass service in the embodiment shown in FIG. 3 is the same and will not be repeated here.

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

FIG. 6 is a schematic structural diagram of Embodiment 1 of the network side device of the present invention. The network side device in this embodiment can implement the process of the embodiment shown in FIG. 1 of the present invention. As shown in FIG. 6 , the network side device may include: receiving Module 61 , determination module 62 , modification module 63 and sending module 64 .

Wherein, the receiving module 61 is configured to receive a first request message sent by the user equipment, where the first request message carries an access point name identifying the bypass service.

The determining module 62 is configured to determine that the name of the access point in the first request message received by the receiving module 61 is the name of the access point identifying the bypass service; specifically, the determining module 62 may use the name of the access point in the first request message The name is compared with the pre-configured access point name identifying the bypass service; if the access point name in the first request message is the same as the pre-configured access point name identifying the bypass service, the first request can be determined The access point name in the message is the access point name identifying the bypass service.

A modification module 63, configured to modify the name of the access point identifying the bypass service after the determining module 62 determines that the name of the access point in the first request message received by the receiving module 61 is the name of the access point identifying the bypass service The name of the access point pointing to the GGSN; in this embodiment, the network side device is locally configured with an IP address corresponding to the name of the access point pointing to the GGSN, and the IP address is the IP address of the GGSN; according to the above-mentioned access point pointing to the GGSN Name, the network side device can obtain the IP address of the GGSN.

In this embodiment, unless otherwise specified, the GGSN can be a GGSN jointly deployed with the access gateway or a GGSN integrated with the access gateway, as shown in Figure 8, the first GGSN 85 in Figure 8 is the GGSN integrated with the access gateway A jointly deployed GGSN or a GGSN integrated with an access gateway. Wherein, the GGSN jointly deployed with the access gateway includes a GGSN directly connected to the access gateway, or a GGSN connected to the access gateway through a router or a switch.

The sending module 64 is configured to send a second request message to the above-mentioned GGSN, the second request message carries the name of the access point pointing to the GGSN, so as to establish a tunnel between the access gateway and the above-mentioned GGSN; further, it is also convenient for the GGSN to Billing and/or lawful interception of bypass traffic.

The network side device in this embodiment may be an SGSN or an access gateway. When the network device is an access gateway, the sending module 64 may send the name of the access point pointing to the GGSN to the SGSN through the first request message, so that the SGSN may send the name of the access point pointing to the GGSN to the SGSN according to the Point to the access point name of the GGSN, and send the second request message to the GGSN. Wherein, according to the access point name pointing to the GGSN, the sending module 64 can obtain the IP address of the GGSN, and then the sending module 64 can send the second request message to the GGSN according to the IP address of the GGSN.

In this embodiment, the tunnel between the access gateway and the GGSN is a direct tunnel (Directtunnel), that is, through the tunnel, the access gateway can directly send the bypass traffic to the GGSN, so that the bypass traffic does not need to pass through the SGSN.

In the above embodiment, after the determining module 62 determines that the access point name in the first request message is the access point name identifying the bypass service, the modifying module 63 modifies the access point name identifying the bypass service to an access point pointing to the GGSN. The entry point name, and the second request message is sent to the GGSN by the sending module 64 to establish a tunnel between the access gateway and the GGSN, wherein the GGSN is a GGSN jointly deployed with the access gateway or a GGSN integrated with the access gateway . Therefore, the access gateway can directly send the bypass traffic to the GGSN jointly deployed with the access gateway or the GGSN integrated with the access gateway, and then the above GGSN sends the bypass traffic to the home network or the Internet, realizing the support of the access gateway The function of data bypass; and the above embodiment realizes the function of charging and/or lawful interception on the bypass service.

Fig. 7 is a schematic structural diagram of Embodiment 1 of the access gateway of the present invention. The access gateway in this embodiment can implement the process of the embodiment shown in Fig. 4 of the present invention. As shown in Fig. 7, the access gateway may include: message A receiving module 71 and a message sending module 72 .

Wherein, the message receiving module 71 is configured to receive the first request message sent by the SGSN, the first request message carries the name of the access point identifying the bypass service; the first request message is that the SGSN receives the first request sent by the user equipment message, and determine that the access point name in the first request message is sent after the access point name identifying the bypass service;

The message sending module 72 is configured to send a second request message to the GGSN, where the second request message carries an access point name identifying the bypass service. In this embodiment, unless otherwise specified, the GGSN is a GGSN deployed jointly with the access gateway or a GGSN integrated with the access gateway, as shown in FIG. 8, the first GGSN 85 in FIG. The deployed GGSN or the GGSN integrated with the access gateway. Wherein, the GGSN jointly deployed with the access gateway includes a GGSN directly connected to the access gateway, or a GGSN connected to the access gateway through a router or a switch.

In this embodiment, the message receiving module 71 is also configured to receive a response message sent by the GGSN and corresponding to the second request message;

The message sending module 72 is also configured to send the above-mentioned response message to the SGSN, so as to establish a tunnel between the access gateway and the above-mentioned GGSN; further, it is also convenient for the GGSN to perform charging and/or lawful interception on the bypass service .

In this embodiment, the tunnel between the access gateway and the GGSN is a direct tunnel (Directtunnel), that is, through the tunnel, the access gateway can directly send the bypass traffic to the GGSN, so that the bypass traffic does not need to pass through the SGSN.

In the above embodiment, after the message receiving module 71 receives the first request message sent by the SGSN, the message sending module 72 sends a second request message to the GGSN to establish a tunnel between the access gateway and the GGSN; wherein the first request message It is sent by the SGSN after determining that the access point name in the first request message is the access point name identifying the bypass service, and the GGSN is the GGSN deployed jointly with the access gateway or the GGSN integrated with the access gateway. Therefore, the access gateway can directly send the bypass traffic to the GGSN jointly deployed with the access gateway or the GGSN integrated with the access gateway, and then the above GGSN sends the bypass traffic to the home network or the Internet, realizing the support of the access gateway The function of data bypass; and the above embodiment realizes the function of charging and/or lawful interception on the bypass service.

Figure 8 is a schematic diagram of Embodiment 1 of the data bypass system of the present invention. As shown in Figure 8, the data bypass system may include: UE 81, AP 82, AG 83, SGSN 84, first GGSN 85 and second GGSN 86.

Wherein, the first GGSN 85 is a GGSN jointly deployed with AG 83 or a GGSN integrated with AG 83; wherein, the GGSN jointly deployed with the access gateway includes a GGSN directly connected to the access gateway, or is connected to the access gateway through a router Or the GGSN connected by the switch; the second GGSN 86 is the GGSN in the core network.

In this embodiment, UE 81, AP 82, AG 83, SGSN 84, first GGSN 85, and second GGSN 86 can use the flow of the embodiment shown in FIG. 2, FIG. 3 or FIG. 5 of the present invention to interact. Among them, AG 83 can be realized by the network side equipment shown in Figure 6 of the present invention or the access gateway shown in Figure 7 of the present invention; SGSN 84 can be realized by the network side equipment shown in Figure 6 of the present invention.

It should be noted that the content of the embodiment shown in FIGS. 1 to 5 of the present invention can also be used as a supplement to the content of the embodiment shown in FIG. 6 , FIG. 7 and FIG. 8 of the present invention.

Those skilled in the art can understand that the drawing is only a schematic diagram of a preferred embodiment, and the modules or processes in the drawing are not necessarily necessary for implementing the present invention.

Those skilled in the art can understand that the modules in the device in the embodiment can be distributed in the device in the embodiment according to the description in the embodiment, or can be located in one or more devices different from the embodiment according to corresponding changes. The modules in the above embodiments can be combined into one module, and can also be further split into multiple sub-modules.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (12)

1. the method for a data bypass is characterized in that, comprising:

Network equipment receives first request message that subscriber equipment sends, and described first request message carries the APN of sign pass-through service;

Described network equipment determines that the Access Point Name in described first request message is called after the APN that identifies pass-through service, the APN of described sign pass-through service is revised as the APN of sensing ggsn GGSN;

Described network equipment sends second request message to described GGSN, and described second request message carries the APN of described sensing GGSN, so that set up the tunnel between IAD and the described GGSN; Described GGSN for IAD unite deployment GGSN or with the integrated GGSN of described IAD.

2. method according to claim 1 is characterized in that, described network equipment determines that the Access Point Name in described first request message is called the APN that identifies pass-through service and comprises:

Described network equipment compares the APN of APN in described first request message and pre-configured sign pass-through service;

If the APN in described first request message is identical with the APN of described pre-configured sign pass-through service, then described network equipment determines that the Access Point Name in described first request message is called the APN that identifies pass-through service.

3. method according to claim 2 is characterized in that, described network equipment is an IAD;

Described network equipment sends second request message to described GGSN and comprises:

Described IAD sends to service universal grouping wireless business supporting node SGSN by described first request message with the described APN that points to GGSN, so that described SGSN sends described second request message according to the APN of described sensing GGSN to described GGSN.

4. method according to claim 2 is characterized in that, described network equipment is SGSN.

5. method according to claim 1 is characterized in that, also comprises:

Described GGSN adds up the charge information of described pass-through service, generates call detail record according to described charge information, and by charging gateway function body described call detail record is sent to charge system;

And/or,

Described GGSN receives the control information of intercepting of Lawful interception gateway transmission, and intercepts the communication information that described subscriber equipment is intercepted in control information according to described, and the communication information of the described subscriber equipment that will listen to sends to described Lawful interception gateway; Describedly intercept control information and comprise and monitor to activate, monitor and close or status poll.

6. a network equipment is characterized in that, comprising:

Receiver module is used to receive first request message that subscriber equipment sends, and described first request message carries the APN of sign pass-through service;

Determination module, the Access Point Name that is used for first request message of definite described receiver module reception is called the APN that identifies pass-through service;

Modified module, be used for after described determination module determines that the Access Point Name of first request message that described receiver module receives is called the APN that identifies pass-through service, the APN of described sign pass-through service being revised as the APN of sensing ggsn GGSN;

Sending module is used for sending second request message to described GGSN, and described second request message carries the APN of described sensing GGSN, so that set up the tunnel between IAD and the described GGSN; Described GGSN for IAD unite deployment GGSN or with the integrated GGSN of described IAD.

7. network equipment according to claim 6 is characterized in that, described determination module specifically is used for the APN of the APN of described first request message and pre-configured sign pass-through service is compared; If the APN in described first request message is identical with the APN of pre-configured sign pass-through service, determine that then the Access Point Name in described first request message is called the APN that identifies pass-through service.

8. network equipment according to claim 7, it is characterized in that, described sending module specifically is used for when described network equipment is IAD, by described first request message described APN that points to GGSN is sent to service universal grouping wireless business supporting node SGSN, so that described SGSN sends described second request message according to the APN of described sensing GGSN to described GGSN.

9. the method for a data bypass is characterized in that, comprising:

Receive first request message that service universal grouping wireless business supporting node SGSN sends, described first request message carries the APN of sign pass-through service; Described first request message is that described SGSN receives described first request message that subscriber equipment sends, and determines that Access Point Name in described first request message is called transmission after the APN that identify pass-through service;

Send second request message to ggsn GGSN, described second request message carries the APN of described sign pass-through service;

Receive described GGSN that send with the described second request message corresponding response message, described response message is sent to described SGSN, so that set up the tunnel between IAD and the described GGSN; Described GGSN for IAD unite deployment GGSN or with the integrated GGSN of described IAD.

10. method according to claim 9 is characterized in that, described SGSN determines that the Access Point Name in described first request message is called the APN that identifies pass-through service and comprises:

Described SGSN compares the APN of APN in described first request message and pre-configured sign pass-through service;

If the APN in described first request message is identical with the APN of pre-configured sign pass-through service, then described SGSN determines that the Access Point Name in described first request message is called the APN that identifies pass-through service.

11. method according to claim 9 is characterized in that, also comprises:

Described GGSN adds up the charge information of described pass-through service, generates call detail record according to described charge information, and by charging gateway function body described call detail record is sent to charge system;

And/or,

Described GGSN receives the control information of intercepting of Lawful interception gateway transmission, and intercepts the communication information that described subscriber equipment is intercepted in control information according to described, and the communication information of the described subscriber equipment that will listen to sends to described Lawful interception gateway; Describedly intercept control information and comprise and monitor to activate, monitor and close or status poll.

12. an IAD is characterized in that, comprising:

The message sink module is used to receive first request message that service universal grouping wireless business supporting node SGSN sends, and described first request message carries the APN of sign pass-through service; Described first request message is that described SGSN receives described first request message that subscriber equipment sends, and determines that Access Point Name in described first request message is called transmission after the APN that identify pass-through service;

Message transmission module is used for sending second request message to ggsn GGSN, and described second request message carries the APN of described sign pass-through service;

Described message sink module, also be used to receive described GGSN that send with the described second request message corresponding response message;

Described message transmission module also is used for described response message is sent to described SGSN, so that set up the tunnel between IAD and the described GGSN; Described GGSN for IAD unite deployment GGSN or with the integrated GGSN of described IAD.

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