WO2011134324A1

WO2011134324A1 - Method and system for dynamically controlling data distribution

Info

Publication number: WO2011134324A1
Application number: PCT/CN2011/071810
Authority: WO
Inventors: 周娜; 王静; 梁爽
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-04-28
Filing date: 2011-03-15
Publication date: 2011-11-03
Also published as: CN102238633A; CN102238633B

Abstract

The present invention discloses a method for dynamically controlling data distribution, which comprises that: when a user subscription is modified from non-supporting to supporting distribution or from supporting to non-supporting the distribution, a Mobility Management Entity (MME) sends a message carrying change circumstances of distribution subscription information to a radio side network element or a terminal; a local gateway performs a data distribution control according to the message. The present invention also discloses a system for dynamically controlling data distribution. Since the local gateway can timely acquire the change circumstances of the distribution subscription information from the message sent from the MME to the radio side network element or the terminal or perform a deactivation on a bearer, the present invention can avoid the circumstance that practical running path of data is not consistent with the subscription information.

Description

Dynamic control method and system for data shunting

The present invention relates to mobile communication technologies, and in particular, to a dynamic control method and system for data offloading. Background technique

The Evolved Packet System (EPS) of the 3rd Generation Partnership Project (3GPP) evolved by the Evolved Universal Terrestrial Radio Access Network (E-UTRAN), Mobility Management Entity (MME), Serving Gateway (S-GW), Packet Data Network Gateway (P-GW or PDN GW), Home Subscriber Server (HSS) 3GPP's Authentication, Authorization and Accounting (AAA) server, Policy and Charging Rules Function (PCRF) entity and other supporting nodes.

FIG. 1 is a schematic diagram of an EPS system architecture. As shown in FIG. 1, a mobility management entity is responsible for control planes such as mobility management, non-access stratum signaling processing, and user mobility management context management; S-GW is The E-UTRAN-connected access gateway device forwards data between the E-UTRAN and the P-GW and is responsible for buffering the paging waiting data; the P-GW is an EPS and Packet Data Network (PDN) network. The border gateway is responsible for PDN access and forwarding data between the EPS and the PDN; both the S-GW and the P-GW belong to the core network gateway.

The home base station is a small, low-power base station deployed in indoor places such as homes and offices. Its main function is to provide users with higher service rates and lower the cost of using high-speed services, while making up for existing distributed cellular Insufficient coverage of wireless communication systems. Home base station The advantages are affordable, convenient, low power output, plug and play and more. In the home base station system, the home base station is a wireless side network element. The home base station can access the core network through the home network gateway gateway, or directly connect to the core network. The main functions of the home base station gateway are: verifying the security of the home base station, processing the registration of the home base station, and Perform operation and maintenance management, configure and control the home base station according to the operator's requirements, and exchange data between the core network and the home base station.

2 and 3 are respectively schematic diagrams of connection between two types of wireless communication networks in the prior art. As shown in FIG. 2 and FIG. 3, in the case of a home base station gateway, the local gateway can be not only combined with the home base station (as shown in the figure). 2) or sub-set, can also be combined with the home base station gateway (as shown in Figure 3) or sub-set.

The local gateway may be a local monthly service gateway (Local SGW, L-SGW) and local packet data (Local PGW, L-PGW), or may be a separate L-PGW, or may be a data offload function entity. In addition, the home base station gateway can be combined with the home base station.

In addition to supporting the access of the mobile core network, the mobile communication system (including the home base station system) can also support the IP offload function, and the terminal-to-home can be realized under the condition that the wireless side network element has the IP offload capability and the user subscribes to allow the IP offload. Local access to other IP devices or the Internet on the network.

The implementation of IP offloading in the systems shown in Figure 1, Figure 2 and Figure 3 can provide strong support for IP offloading technology by adding a local gateway. The local gateway acts as a gateway to the external network (such as the Internet) to provide address allocation. , billing, packet filtering, policy control, data offloading, NAS/S 1-AP/RANAP (Radios Access Network Application Part) / General Tunneling Protocol (GTP) I proxy Mobile IP (PMIP) / Mobile IP (MIP) message parsing, Network Address Translation (NAT), IP offloading policy routing and execution. The local gateway can be combined with the wireless side network element. The following is a description of the communication system shown in FIG. 1. FIG. 4 is a schematic diagram of IP split data of a wireless communication system in the prior art, and FIG. 5 is a schematic diagram of IP split data of a wireless communication system in another prior art, as shown in FIG. 4 and FIG. As shown in Figure 5, IP offloading can be implemented by adding (as shown in Figure 5) or not adding (as shown in Figure 4) NAT address translation function on the local gateway, not limited to realizing core network access and IP through one connection. Split access function.

In the prior art, the IP offload function allows information about whether the user or the access point name (APN) of the user can be offloaded, but when the offload subscription information changes, the network side (such as mobility) The management entity cannot indicate the change of the subscription information to the local gateway, which may result in an abnormality in the actual running path of the data and the subscription information, and cannot implement dynamic control of data offloading. Summary of the invention

In view of the above, the main purpose of the present invention is to provide a dynamic control method and system for data offloading, which can timely indicate the change of the offload subscription information to the local gateway, thereby avoiding the situation where the actual running path of the data is inconsistent with the subscription information.

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

A dynamic control method for data offloading, comprising:

When the user subscription does not support the offload modification to support or the support offload modification to the unsupported, the mobility management entity sends a message carrying the change of the offload subscription information to the radio side network element or the terminal;

The local gateway performs data offload control according to the message. The message of the situation is: after the mobility management entity obtains the change of the offload subscription information, the new offload subscription information or the offloaded identifier is carried in the message and sent to the radio side network element or the terminal, and the local gateway according to the message Performing data offload control is: the local gateway obtains the offload information from the message, and determines whether the bearer or the connection is available according to the obtained offload information. Data shunting,

The offloading information is a split subscription information or a split identifier;

The offload identifier is one or any combination of the following: a preset identifier, a mobile subscriber integrated service digital network number, MSISDN, APN, a charging feature, and a charging ID.

The mobility management entity obtains the change of the offload subscription information as follows: the mobility management entity receives the change of the offload subscription information from the subscription database, or the mobility management entity receives the offload subscription information from the subscription database, according to the The split subscription information is used to obtain the change of the offload subscription information.

The mobility management entity carries the new offload subscription information or the offloaded identifier in the message and sends the message to the wireless side network element or the terminal:

The mobility management entity sends a radio access bearer RAB assignment request to the radio side network element, and carries the new offload subscription information or the offload identifier; or

The mobility management entity sends a bearer modification request to the radio side network element, and carries the new offload subscription information or the offload identifier;

Alternatively, the mobility management entity sends a common ID message or a newly defined Iu interface message to the wireless side network element, and carries the new offload subscription information, or the offloaded identifier, or the seven-package identifier and the offload identifier; or, the S1 port message, Carry a new off-sale signing information or a diverted logo; or,

The mobility management entity sends a mobility management notification message or a newly defined NAS message to the terminal, carrying the new offload subscription information or the offload identity. The message of the situation is: after the mobility management entity obtains the change of the offload subscription information, sends a bearer deactivation request message to the wireless side network element or the terminal,

The local gateway performs data offload control according to the message: The local gateway is based on the bearer Deactivate the message to delete the bearer information.

The mobility management entity obtains the change of the offload subscription information as follows: The mobility management entity obtains the change of the offload subscription information according to the offload subscription information or the offload subscription information that changes from the subscription database.

The mobility management entity sends a bearer deactivation request message to the radio side network element or the terminal: the mobility management entity initiates a deactivation packet data protocol PDP context request to the terminal, where the deactivated PDP context request carries a re-establishment/diversion subscription The indication or cause of the change; or, the mobility management entity initiates a deactivation bearer request to the radio side network element, where the deactivated bearer request carries an indication or a reason for the re-establishment/diversion subscription change.

A dynamic control system for data offloading, comprising: a mobility management entity, a local gateway, a wireless side network element or a terminal;

The mobility management entity is configured to send a message carrying the change of the offload subscription information to the wireless side network element or the terminal when the user subscription does not support the offload modification to support or the support offload modification to the unsupported;

The local gateway is configured to perform data offload control according to the message sent by the mobility management entity.

The message that the mobility management entity sends the change of the traffic carrying the subscription information to the wireless network element or the terminal when the traffic distribution management information is changed is: the mobility management entity changes the current subscription information of the current APN, or When the traffic distribution information of the APN is changed, the message carrying the change of the traffic distribution information is sent to the wireless network element or the terminal. The message is: After the mobility management entity obtains the change of the traffic distribution information, the new traffic distribution is performed. The subscription information or the offloading identifier is carried in the message and sent to the wireless side network element or the terminal, and the local gateway performs data offloading control according to the message: the local gateway obtains the offloading information from the message, and according to the obtained The offload information determines whether the bearer or connection is available Data shunting,

The offload information is a split subscription information or a split identifier.

The mobility management entity sends a bearer deactivation request message to the radio side network element or the terminal: the mobility management entity initiates a deactivation PDP context request to the terminal, where the deactivated PDP context request carries an indication of reestablishment/diversion subscription change Or reason; or,

The mobility management entity initiates a deactivation bearer request to the radio side network element, where the deactivation bearer request carries an indication or reason for the reestablishment/diversion subscription change.

The dynamic control method and system for data offloading according to the present invention, when the offload subscription information changes, the mobility management entity sends a message carrying the change of the offload subscription information to the radio side network element or the terminal; the local gateway performs data offload control according to the message. . The present invention can avoid the inconsistency between the actual running path of the data and the subscription information, because the local gateway can obtain the change of the offloading subscription information or deactivate the bearer from the message sent by the mobility management entity to the wireless side network element or the terminal in time. Case. DRAWINGS

Figure 1 is a schematic diagram of an EPS system architecture;

2 is a schematic diagram of connection of a wireless communication network in the prior art;

3 is a schematic diagram of connection of another wireless communication network in the prior art;

4 is a schematic diagram of IP split data of a wireless communication system in the prior art;

5 is a schematic diagram of another IP split data of a wireless communication system in the prior art;

6 is a schematic flow chart of a dynamic control method for data offloading according to the present invention;

7 is a schematic flow chart of another dynamic control method for data offloading according to the present invention;

8 is a flowchart of dynamically controlling service offloading in the case where the subscription information of the UTRAN system is added or modified according to the embodiment 1; 9 is a flowchart of dynamically controlling service offload in the case where the subscription information of the E-UTRAN system is added or modified according to the embodiment 2;

FIG. 10 is a flowchart of dynamically controlling service offloading in the case where the subscription information of the UTRAN system is added or modified according to the UTRAN system;

11 is a flow chart showing dynamic control of service offloading in the case where the subscription information of the E-UTRAN system is added or modified according to the embodiment 4;

FIG. 12 is a flowchart of dynamically controlling service offloading in the case where the subscription information of the UTRAN system is added or modified according to the UTRAN system; FIG.

13 is a flow chart showing dynamic control of service offloading in the case where the subscription information of the E-UTRAN system is added or modified according to the embodiment 6;

Figure 14 is a flow chart showing the dynamic control of the service offload in the case where the subscription information of the UTRAN and the E-UTRAN system is added or modified according to the embodiment 7. detailed description

The basic idea of the present invention is: when the offload subscription information changes, the mobility management entity sends a message carrying the change of the offload subscription information to the radio side network element or the terminal; the local gateway performs data offload control according to the message.

In the present invention, there are two main ways for the mobility management entity to send a message carrying the change of the offload subscription information to the radio side network element or the terminal:

1) When the offloading subscription information changes, the new subscription information or the offloaded identifier is carried in the message and sent to the wireless side network element or the terminal. Here, the changed traffic signing information may be the current subscription information of the APN, or the current subscription information of the APN.

2) When the offload subscription information changes, the bearer deactivation request message is sent to the radio side network element or the terminal.

The above two methods will be described in detail below. FIG. 6 is a schematic flowchart of a dynamic control method for data offloading according to the present invention. As shown in FIG. 6, the method includes:

Step 601: The shunt subscription information changes.

Here, the changed traffic signing information may be the current subscription information of the APN, or the current subscription information of the APN. The offload subscription information may be based on the APN or not based on the APN. The user subscription does not support the offload modification to support, and the change from the support split to the unsupported split subscription information changes.

Step 602: The mobility management entity acquires the change of the offload subscription information, and carries the new offload subscription information or the offload identifier in the message and sends the message to the wireless side network element or the terminal.

Here, the mobility management entity obtains the change of the offload subscription information in two ways: The subscription database storing the offload subscription information may directly send the change of the offload subscription information (that is, the changed offload subscription information) to the mobility management entity. The stored management information may be sent to the mobility management entity, and the mobility management entity may determine the change of the traffic distribution information by the mobility management entity.

The offloading identifier is used to indicate whether to enable or disable the routing policy, or to indicate whether the bearer or the user is allowed to be offloaded, and may be one or any combination of the following: a preset identifier, a mobile subscriber integrated service digital network number MSISDN, APN, and a charging feature. , billing ID.

The mobility management entity carries the new subscription information or the offload identifier in the message and sends the message to the radio side network element or the terminal. The mobility management entity sends the radio access bearer (RAB) assignment to the radio side network element. The requesting, carrying the new offloading subscription information or the offloading identifier; or, the mobility management entity sends a bearer modification request to the wireless side network element, carrying the new offloading subscription information or the offloading identifier; or, the mobility management entity sends the mobility management entity to the wireless side network element The common ID message or the newly defined Iu interface message carries the new offload subscription information, or the offloaded identifier, or the bearer change request message or the newly defined S1 interface message, and carries the new offload subscription information or the offload identifier; Alternatively, the mobility management entity sends a mobility management notification message or a newly defined NAS message to the terminal, and carries the new offload subscription information or the offload identifier. Said the news.

The local gateway obtains new offload subscription information or offload identity to determine whether the bearer can be offloaded. Certainly, in the case that the mobility management entity knows that the local gateway exists, the new offload subscription information or the offloaded identifier may be directly sent to the local gateway, and the local gateway is not required to intercept the network; or, the wireless side network element may also be obtained. After the new offloading subscription information or the offloading identifier is known, the information or the identifier is sent to the local gateway, and the local gateway is not required to intercept.

Step 604: The local gateway obtains the latest offload information according to the subscription information or the offload identifier carried in the message.

Step 605: The local gateway performs data offload control according to the latest offloaded information obtained. FIG. 7 is a schematic flowchart of another method for dynamically controlling data offloading according to the present invention. As shown in FIG. 7, the method includes:

Step 701: The offload subscription information changes.

Here, the user subscription does not support the offload modification to support, and the change from support split to unsupported is the change of the offload subscription information.

Step 702: The mobility management entity acquires a change of the offload subscription information, and sends a bearer deactivation request message to the radio side network element or the terminal.

Here, the subscription database storing the offload subscription information may send the changed offload subscription information to the mobility management entity, or may send all the stored offload subscription information to the mobility management entity when some of the offload subscription information changes. The mobility management entity then determines the change of the offload subscription information. The bearer deactivation request message carries the bearer that needs to be deactivated, that is, includes the change of the shunt subscription information involved.

The mobility management entity can send a bearer deactivation request message to the radio side network element or terminal. For example, the mobility management entity initiates a deactivation PDP context request to the terminal, and may carry an indication or a reason for the re-establishment/diversion subscription change. Alternatively, the mobility management entity initiates a deactivation bearer request to the radio side network element, which may be carried. Re-establish/divert indications or reasons for contract changes.

Step 703: The terminal initiates a PDP context activation or modification, or a PDN connection or a bearer setup or tampering process.

In this step, the local gateway deletes the bearer information according to the bearer deactivation message.

Step 704: The local gateway performs data offload control.

In the present invention, the wireless side network element may be a base station, a home base station, an RNC, a local gateway, and a streaming function entity. The mobility management entity may be an MME, an MSC, or an SGSN. The local gateways may be L-SGWs and L-PGWs, may be separate L-PGWs, may be L-GGSNs and L-SGSNs, may be separate L-GGSNs, and may be data offloading functional entities.

It should be noted that the IP offload connection includes one of the following: a local IP access user local network, a local IP access company local network, a local IP access Internet, a diversion operation of the Internet service, and a specific IP data offload.

The present invention also provides a dynamic control system for data offloading, including: a mobility management entity, a local gateway, a wireless side network element or a terminal;

The message that the mobility management entity sends the change of the traffic carrying the subscription information to the wireless network element or the terminal when the traffic distribution management information is changed is: the mobility management entity changes the current subscription information of the current APN, or When the offloading subscription information of the APN is not changed, the message carrying the change of the diverted subscription information is sent to the radio network element or the terminal. The message of the situation is: after the mobility management entity obtains the change of the offload subscription information, the new offload subscription information or the offloaded identifier is carried in the message and sent to the radio side network element or the terminal, and the local gateway according to the message Performing data offload control is: the local gateway obtains the offload information from the message, and determines whether the bearer or the connection can perform data offload according to the obtained offload information.

The mobility management entity sends a mobility management notification message or a newly defined NAS to the terminal. Interest, carrying a new diversion contract information or a diversion logo. The message of the situation is: after the mobility management entity obtains the change of the offload subscription information, the bearer deactivation request message is sent to the radio side network element or the terminal,

The local gateway performs data offload control according to the message: The local gateway deletes the bearer information according to the bearer deactivation message.

The implementation of the technical solution will be further described in detail below with reference to specific embodiments.

Embodiment 1 This embodiment is based on the system architecture shown in FIG. 1. FIG. 8 is a flowchart of dynamic control of service offloading in the case where the subscription information of the UTRAN system is added or modified according to the UTRAN system, as shown in FIG. The process includes:

Step 801: In the case that the subscription information is added or modified, the subscription database sends an insertion subscription data message to the mobility management entity, and carries the offload related subscription information.

Step 802: Optionally, the mobility management entity determines whether the user's offload subscription changes. Preferably, the mobility management entity determines whether the offload subscription of the APN being used has changed. At this time, after the mobility management entity determines that the user's offload subscription or the offload subscription of the APN being used has changed, the following steps are performed. Alternatively, you may not need to perform this step. In this case, you need to perform the following steps regardless of whether the split contract is changed.

Step 803: The mobility management entity sends an RAB assignment request to the radio side network element, and carries the new offload subscription information or the offload identifier, where the offload identifier is used to indicate that the routing policy is enabled or disabled, or whether the bearer or the user is allowed to be offloaded. .

Step 804: The local gateway acquires new offload subscription information or a offload identifier to determine whether the bearer can be offloaded.

Optionally, the local gateway intercepts the RAB Assignment Request message.

If the radio side network element does not need to modify the bearer, the following steps 805, 806, 808, or step 806, step 808, or step 807, step 808 may be performed.

Step 805: The operation message of establishing, modifying, or releasing the radio bearer is exchanged between the radio network element and the terminal.

Step 806: The radio side network element replies to the mobility management entity RAB to assign a response message.

Step 807: The radio side network element discards the RAB assignment request message without any processing. Step 808: The mobility management entity replies to the subscription database with an insertion subscription data response. Example 2

The embodiment is based on the system architecture shown in FIG. 1. FIG. 9 is a flowchart of dynamic control of service offloading in the case where the subscription information of the E-UTRAN system is added or modified according to the embodiment 2, as shown in FIG. The process includes:

Step 901: In the case that the subscription information is added or modified, the subscription database sends an insertion subscription data message to the mobility management entity, and carries the offload related subscription information.

Step 902: Optionally, the mobility management entity determines whether the user's offload subscription changes. Preferably, the mobility management entity determines whether the offload subscription of the APN being used has changed. At this time, after the mobility management entity determines that the user's offload subscription or the offload subscription of the APN being used has changed, the following steps are performed. Alternatively, you may not need to perform this step. In this case, you need to perform the following steps regardless of whether the split contract is changed.

Step 903: The mobility management entity sends a bearer modification request to the radio side network element, and carries the new traffic distribution subscription information or the traffic distribution identifier. The traffic distribution identifier is used to indicate whether the routing policy is enabled or disabled, or whether the bearer or the user is allowed to be offloaded.

Step 904: The local gateway acquires new offload subscription information or a offload identifier to determine whether the bearer can be offloaded.

Optionally, the local gateway intercepts the bearer request message.

If the radio side network element does not need to modify the bearer, the following steps 905, 906, 908, or 906, step 908, or step 907, step 908 may be performed.

Step 905: Perform an RRC connection reconfiguration process between the wireless side network element and the terminal.

Step 906: The radio side network element replies to the mobility management entity bearer modification response message.

Step 907: The radio side network element discards the bearer request message, and does not perform any processing.

Step 908: The mobility management entity replies to the subscription database with an insertion subscription data response. Example 3

The embodiment is based on the system architecture shown in FIG. 1. FIG. 10 is a flowchart of dynamic control of service offloading in the case where the subscription information of the UTRAN system is added or modified according to the UTRAN system. As shown in FIG. 10, the process includes :

Step 1001: In the case that the subscription information is added or modified, the subscription database sends an insertion subscription data message to the mobility management entity, and carries the offload related subscription information.

Step 1002: Optionally, the mobility management entity determines whether the user's offload subscription changes.

Preferably, the mobility management entity determines whether the offload subscription of the APN being used has changed. At this time, after the mobility management entity determines that the user's offload subscription or the offload subscription of the APN being used has changed, the following steps are performed. Alternatively, you may not need to perform this step. In this case, you need to perform the following steps regardless of whether the split contract is changed.

Step 1003: The mobility management entity sends a common ID message or a newly defined Iu interface message to the wireless side network element, and carries the new offload subscription information or the bearer identifier and/or the offload identifier, where the offload identifier is used to indicate that the routing policy is enabled or disabled. , or indicate whether to allow the bearer or the user to be offloaded.

Step 1004: The local gateway acquires new offload subscription information or offload identifier to determine whether the bearer can be offloaded. Alternatively, the local gateway may intercept the message of step 1003. Example 4

The embodiment is based on the system architecture shown in FIG. 1. FIG. 11 is a flowchart of dynamic control of service offloading in the case where the subscription information of the E-UTRAN system is added or modified according to the embodiment 4, as shown in FIG. The process includes:

Step 1101: In the case that the subscription information is added or modified, the subscription database sends an insertion subscription data message to the mobility management entity, and carries the offload related subscription information.

Step 1102: Optionally, the mobility management entity determines whether the user's offload subscription changes.

Preferably, the mobility management entity determines if the offload subscription of the APN being used has changed. At this time, after the mobility management entity determines that the user's offload subscription or the offload signature of the APN being used has changed, the following steps are performed.

Alternatively, you may not need to perform this step. In this case, you need to perform the following steps regardless of whether the split contract is changed. The information or the newly defined S1 interface message carries the new offloading subscription information or the offloading identifier, where the offloading identifier is used to indicate whether the routing policy is enabled or disabled, or whether the bearer or the user is allowed to be offloaded. Step 1104: The local gateway acquires new offload subscription information or a offload identifier to determine whether the bearer can be offloaded. Alternatively, the local gateway may intercept the message of step 1103.

Step 1105: The radio side network element replies to the mobility management entity user context modification response message. Example 5

The embodiment is based on the system architecture shown in FIG. 1. FIG. 12 is a flowchart of dynamic control of service offloading in the case where the subscription information of the UTRAN system is added or modified according to the UTRAN system. As shown in FIG. 12, the process includes :

Step 1201: In the case that the subscription information is added or modified, the subscription database sends an insertion subscription data message to the mobility management entity, and carries the offload related subscription information.

Step 1202: The mobility management entity determines whether the user's offload subscription changes.

Preferably, the mobility management entity determines if the offload subscription of the APN being used has changed. After the mobility management entity determines that the user's offload subscription or the offload subscription of the APN being used has changed, the following steps are performed.

Step 1203: The mobility management entity initiates a deactivation PDP context request to the terminal, and may bring an indication or reason for reestablishing/diverting the subscription change.

Step 1204: The terminal returns a deactivated PDP context accept message.

Step 1205: Perform a radio bearer release process between the terminal, the wireless side network element, and the mobility management entity.

Step 1206: Perform a process in which the UE initiates a PDP context activation or a secondary activation. Example 6

The embodiment is based on the system architecture shown in FIG. 1. FIG. 13 is a flowchart of dynamic control of service offloading in the case where the subscription information of the E-UTRAN system is added or modified according to the embodiment 6, as shown in FIG. The process includes:

Step 1301: In the case that the subscription information is added or modified, the subscription database is sent and inserted. The subscription data message is sent to the mobility management entity, and carries the offload related subscription information.

Step 1302: The mobility management entity determines whether the user's offload subscription changes.

Step 1303: The mobility management entity initiates a deactivation bearer request to the radio side network element, and may bring an indication or reason for reestablishing/diverting the subscription change.

Step 1304: The radio side network element initiates an RRC connection reconfiguration message to the terminal, and may bring an indication or a reason for reestablishing the split/split subscription change.

Step 1305: The terminal returns a radio side network element RRC connection reconfiguration complete message.

Step 1306: The radio side network element sends a deactivation bearer response message to the mobility management entity. Step 1307: Perform a UE to initiate a bearer or connection establishment or modification process. Example 7

The embodiment is based on the system architecture shown in FIG. 1. FIG. 14 is a flowchart of dynamic control of service offloading in the case where the subscription information of the UTRAN and the E-UTRAN system is added or modified according to the embodiment 7, as shown in FIG. , the process includes:

Step 1401: In the case that the subscription information is added or modified, the subscription database sends an insertion subscription data message to the mobility management entity, and carries the offload related subscription information.

Step 1402: Optionally, the mobility management entity determines whether the user's offload subscription changes. Preferably, the mobility management entity determines if the offload subscription of the APN being used has changed. At this time, after the mobility management entity determines that the user's offload subscription or the offload signature of the APN being used has changed, the following steps are performed.

Alternatively, you do not need to perform this step. In this case, you need to perform the following steps regardless of whether the offload subscription changes.

Step 1403: The mobility management entity sends a mobility management notification message or a new definition to the terminal. The NAS message carries the new offloading subscription information or the offloading identifier, where the offloading identifier is used to indicate whether to enable or disable the routing policy or whether to allow the bearer or the user to be offloaded.

Step 1404: The local gateway acquires new offload subscription information or offload identifier to determine whether the load can be offloaded. Alternatively, the local gateway may intercept the message of step 1403.

The addition or modification of the subscription information may include: adding information to allow the APN to be offloaded in the subscription information, or adding information allowing the UE to perform the offloading, or modifying the APN subscription information to support the APN to support the offloading, or modifying the APN subscription information as the The APN does not support offloading, or modify the UE subscription information to support offloading, or modify the UE subscription information to not support offloading.

In order to simplify the description, the above embodiment only illustrates the management manner of the IP offload connection by taking the case of FIG. 1 as an example. In the case of the local gateway and the radio side network element division, FIG. 2, and FIG. 3 systems in FIG. 1, regardless of the data offloading manner shown in FIG. 4 or FIG. 5, the offload subscription information is added or modified regardless of the UTRAN or E-UTRAN system. The process of dynamically controlling the traffic distribution in the case is similar to the above embodiment, and will not affect the description of the present invention, and therefore will not be described again.

It should be noted that the wireless side network element of the IP offloading can be the same as the local gateway address.

The IP offload connection can be a local IP access user local network, a local IP access company local network, a local IP access Internet, a diversion operation of the Internet service, and a specific IP data offload.

Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

Claim

A dynamic control method for data offloading, characterized in that: the method includes: when the user subscription does not support the offload modification to support or the support offload modification to the unsupported, the mobility management entity sends the radio management entity to the radio side network element or the terminal. a message carrying a change in the diverted contract information;

The local gateway performs data offload control according to the message.

The method according to claim 1, wherein the message of the situation is: after the mobility management entity obtains the change of the offload subscription information, the new offload subscription information or the offload identifier is carried in the message and sent to The wireless side network element or the terminal, the local gateway performs data offload control according to the message: the local gateway obtains the offload information from the message, and determines whether the bearer or the connection can perform data offload according to the obtained offload information.

The offload identifier is one or more of the following: a preset identifier, a mobile subscriber integrated service number network number, MSISDN, APN, a charging feature, and a charging ID.

The method according to claim 2, wherein the mobility management entity obtains the change of the offload subscription information as follows: the mobility management entity receives the change of the offload subscription information from the subscription database, or mobility After receiving the offload subscription information from the subscription database, the management entity obtains the change of the offload subscription information according to the offload subscription information.

The method according to claim 2 or 3, wherein the mobility management entity carries the new offload subscription information or the offloaded identifier in the message and sends the message to the wireless side network element or the terminal:

The mobility management entity sends a radio access bearer RAB assignment request to the radio side network element, and carries the new offload subscription information or the offload identifier; or The mobility management entity sends a bearer modification request to the radio side network element, and carries the new offload subscription information or the offload identifier;

The mobility management entity sends a mobility management notification message or a newly defined NAS message to the terminal, carrying the new offload subscription information or the offload identity.

The method according to claim 1, wherein the message of the situation is: after the mobility management entity obtains the change of the offload subscription information, sending a bearer deactivation request message to the wireless side network element or the terminal,

The method according to claim 5, wherein the mobility management entity obtains the change of the offload subscription information as: the mobility management entity according to the changed subscription information or the offload subscription information from the subscription database, Get the change of the offload subscription information.

The method according to claim 5 or 6, wherein the mobility management entity sends a bearer deactivation request message to the radio side network element or the terminal:

The mobility management entity initiates a deactivation packet data protocol PDP context request to the terminal, where the deactivated PDP context request carries an indication or a reason for the re-establishment/diversion subscription change; or the mobility management entity initiates a deactivation bearer to the radio side network element. The request, the deactivation bearer request carries an indication or a reason for re-establishment/diversion subscription change.

8. A dynamic control system for data shunting, characterized in that the system comprises: mobility a management entity, a local gateway, a wireless side network element, or a terminal;

The system according to claim 8, wherein the mobility management entity sends a message carrying the change of the offload subscription information to the radio side network element or the terminal when the offload subscription information changes: mobility management When the current subscription information of the APN is changed, or when the current subscription information of the APN is changed, the entity sends a message carrying the change of the subscription information to the wireless network element or the terminal. The message is: After the management entity obtains the change of the offloading subscription information, the new offloading subscription information or the offloaded identifier is carried in the message and sent to the wireless side network element or the terminal, and the local gateway performs data offload control according to the message as: The gateway obtains the offload information from the message, and determines whether the bearer or the connection can perform data offload according to the obtained offload information.

The system according to claim 9, wherein the mobility management entity obtains the change of the offload subscription information as follows: the mobility management entity receives the change of the offload subscription information from the subscription database, or mobility After receiving the offload subscription information from the subscription database, the management entity obtains the change of the offload subscription information according to the offload subscription information.

The system according to claim 9 or 10, characterized in that said mobility management The entity carries the new offload subscription information or the offloaded identifier in the message and sends it to the wireless side network element or the terminal:

The system according to claim 8, wherein the message of the situation is: after the mobility management entity obtains the change of the offload subscription information, sending a bearer deactivation request message to the wireless side network element or the terminal,

The system according to claim 12, wherein the mobility management entity obtains the change of the offload subscription information as: the mobility management entity according to the changed subscription information or the offload subscription information from the subscription database, Get the change of the offload subscription information.

The system according to claim 12 or 13, wherein the mobility management entity sends a bearer deactivation request message to the radio side network element or the terminal:

The mobility management entity initiates a deactivation PDP context request to the terminal, where the deactivated PDP is up and down The request carries the indication or reason for the re-establishment/diversion contract change; or