WO2011015086A1

WO2011015086A1 - Access control method and system for local ip access

Info

Publication number: WO2011015086A1
Application number: PCT/CN2010/073852
Authority: WO
Inventors: 卢飞; 霍玉臻; 宗在峰
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-08-03
Filing date: 2010-06-11
Publication date: 2011-02-10
Also published as: CN101990321A

Abstract

An access control method and system for local Internet Protocol(IP) access are provided. The internet Local IP Access(LIPA) access capability information and/or the home network LIPA access capability information are/is notified to a user terminal through a broadcast message by a wireless side network element/home basestation gateway; the user terminal selects wireless side network element/home basestation to access LIPA according to the obtained internet LIPA access capability information and/or the home network LIPA access capability information. Because the internet LIPA access capability information and/or the home network LIPA access capability information are/is notified to the user terminal by the wireless side network element/home basestation gateway, it is ensured that the user terminal can select the wireless side network element which has internet LIPA access capability or the home basestation gateway which has home network LIPA access capability to access the network. As a result, unnecessary refusion to access to the LIPA is avoided, the successful access of the local IP access function is guaranteed and the success rate of user access is improved.

Description

Method and system for local IP access control

The present invention relates to a home base station system, and more particularly to a local network protocol (IP, Internet Protocol) access control method and system. Background technique

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

FIG. 1 is a schematic diagram of a composition of an existing EPS architecture. As shown in FIG. 1 , the MME is responsible for control planes such as mobility management, non-access stratum signaling processing, and user mobility management context management. The access gateway includes S. - GW and P-GW, wherein the S-GW is an access gateway device connected to the E-UTRAN, configured to forward data between the E-UTRAN and the P-GW, and is responsible for buffering the paging waiting data; -GW is a border gateway between EPS and Packet Data Network (PDN), responsible for PDN access and forwarding data between EPS and PDN; authentication authorization server includes HSS, AAA server; PCRF is policy and meter The fee-based functional entity, the PCRF is connected to the IP service network through the Rx receiving interface to obtain service information. In addition, the PCRF is connected to the gateway device in the network through the Gx/Gxa/Gxc interface, and is responsible for initiating the IP bearer. Establish, guarantee the quality of service (QoS) of service data, and perform charging control.

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. Insufficient coverage of cellular wireless communication systems. The advantages of a home base station are affordability, convenience, low power output, plug and play, and more.

The home base station can be directly connected to the core network, or can be accessed to the core network through the logical network element of the home base station gateway, as shown in FIG. 1 , where the home base station gateway is mainly used to verify the security of the home base station, and process the home base station. Registration, operation and maintenance management of the home base station, configuration and control of the home base station according to the operator's requirements, and exchange of data between the core network and the home base station. The access gateway may be an S-GW, a P-GW, a Serving GPRS Support Node (SGSN), or a Gateway GPRS Support Node (GGSN). The local access gateway may be a local SGW (L-SGW, Local SGW), a local PGW (L-PGW, Local PGW), a virtual SGW (V-SGW, Virtual SGW), a virtual PGW (V-PGW, Virtual PGW), Local GGSN (L-GGSN, Local GGSN).

In order to implement local IP access (LIPA, Local IP Access), that is, the local access of the terminal to other IP devices or the Internet in the home network, a local access gateway is added, as shown in Figure 1 and Figure 2. The local access gateway can provide strong support for the local IP access technology. The local access gateway can be set up with the wireless side network element or set in the vicinity of the wireless side network element, or can be set up with the home base station gateway or set in the home base station gateway. nearby.

2 is a schematic diagram of a data flow path of local IP access and traditional core network IP access in a mobile communication network architecture. As shown in FIG. 2, a traditional core network IP access data path can be established for a user supporting local IP access. Local IP access data path. As shown in FIG. 2, for the local IP access connection, the local IP access data path from the terminal to the radio side network element/home base station gateway to the local access gateway (L-SGW, L-PGW), and the data transmission does not pass through the core network. . For the sake of Now with the LIPA function, two connections can be established. As shown in Figure 2, the local IP access data path 1 directly accesses the Internet, and the local IP access data path 2 directly accesses other IP devices on the home network.

In order to ensure successful access of the local IP access function, the UE first needs to select a wireless side network element with Internet LIPA access (LIPA to Internet) capability, or a home base station with LIPA to home based network capability. Gateway access. In the current architecture and process, the UE randomly selects to access the wireless side network element/home base station gateway, so that if the accessed wireless side network element/home base station gateway does not have the Internet LIPA access capability/home network LIPA access The capability will inevitably reject the LIPA access of the UE, causing unnecessary rejection of the LIPA access and reducing the user's access success rate. Summary of the invention

In view of this, the main purpose of the present invention is to provide a method and system for local IP access control, which can avoid unnecessary rejection of LIPA access and improve user access success rate.

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

A method for local IP access control, the method comprising:

The wireless side network element/home base station gateway notifies the user terminal of the Internet local IP access function LIPA access capability information and/or the home network LIPA access capability information by using a broadcast message; the user terminal according to the obtained Internet LIPA access capability information and / or home network LIPA access capability information, select the wireless side network element / home base station gateway access LIPA.

The Internet LIPA access capability information is an Internet LIPA access capability information of a wireless side network element/home base station gateway; and the home network LIPA access capability information is a home network LIPA access capability of a wireless side network element/home base station gateway. Information

The selecting the radio side network element/home base station gateway access LIPA specifically includes:

When the user needs to create an Internet LIPA connection, the wireless side network element/home base station supporting the Internet LIPA access capability is selected for connection access;

When the user needs to create a home network LIPA connection, choose to support the home network LIPA access. The capable wireless side network element/home base station gateway performs connection access.

The Internet LIPA access capability information further includes a non-closed subscription group CSG user Internet LIPA access capability information; the home network LIPA access capability information further includes non-CSG user home network LIPA access capability information;

For non-CSG users, the method also includes:

When the user needs to create an Internet LIPA connection, further determine that the home network LIPA access capability information is to support the non-CSG user's Internet LIPA access capability, and then connect to access; when the user needs to create a home network LIPA connection, further determine the home. The network LIPA access capability information is connected to the LIPA access capability of the home network supporting non-CSG users.

When the Internet LIPA access capability and/or the home network LIPA access capability set on the wireless side network element/home base station gateway are changed, the method further includes:

The wireless side network element/home base station gateway notifies the user terminal of the changed Internet LIPA access capability information and/or the home network LIPA access capability information by using a broadcast message.

The method also includes:

The user terminal reports the received Internet LIPA access capability information and/or the home network LIPA access capability information to the mobility management unit by initializing the non-access stratum NAS message, and the mobility management unit finally determines whether the capability is based on the capability. Accept the access request.

The mobility management unit is a mobility management entity MME, or a mobile switching center MSC, or a serving GPRS support node SGSN.

The wireless side network element is a base station, or a home base station, or a radio network controller RNC.

A system for local IP access control, including a user terminal, a wireless side network element/home base station gateway, wherein

a user terminal, configured to receive a broadcast message from a wireless side network element/home base station gateway, obtain an Internet LIPA access capability information and/or a home network LIPA access capability information from the broadcast message; and obtain the Internet LIPA connection capability information according to the obtained / or home network LIPA connection ability letter Interest, select the wireless side network element / home base station access LIPA;

a radio side network element/home base station gateway, configured to send a broadcast message to the user terminal, where the broadcast message carries the Internet LIPA access capability information and/or the home network LIPA access capability information, the radio side network element/home base station The gateway is further configured to send a broadcast message to the user terminal when the Internet LIPA access capability information and/or the home network LIPA access capability is changed, where the broadcast message carries the changed Internet LIPA access capability information and/or Or home network LIPA access capability information.

The system also includes a mobility management unit.

The user terminal is further configured to report the received network LIPA access capability information and/or the home network LIPA access capability information to the mobility management unit by initializing the non-access stratum NAS message;

The mobility management unit is configured to determine whether to accept the access request according to the obtained Internet LIPA access capability information and/or the home network LIPA access capability information.

As can be seen from the technical solution provided by the present invention, the wireless side network element/home base station gateway notifies the user terminal of the Internet LIPA access capability information and/or the home base station network LIPA access capability information by using a broadcast message; Obtaining the Internet LIPA access capability information and/or the home network LIPA access capability information, and selecting the wireless side network element/home base station gateway to access the LIPA. The wireless side network element/home base station gateway notifies the user terminal of the Internet LIPA access capability information and/or the home base station network LIPA access capability information, thereby ensuring that the user terminal selects the wireless side network element having the Internet LIPA connection capability, or Home base station gateway access with home network LIPA access capability. Thereby avoiding unnecessary rejection of LIPA access, guaranteeing local IP Successful access to the access function improves the user's access success rate. DRAWINGS

Figure 1 is a schematic diagram of the composition of an existing EPS architecture;

2 is a schematic diagram of a data flow path of local IP access and traditional core network IP access in a mobile communication network architecture;

3 is a flowchart of a method for accessing local IP access control according to the present invention;

FIG. 4 is a schematic structural diagram of a system for accessing a local IP access control according to the present invention. detailed description

FIG. 3 is a flowchart of a method for ensuring successful access of local IP access control according to the present invention. As shown in FIG. 3, the method includes the following steps:

Step 300: The radio side network element/home base station gateway notifies the user terminal of the Internet LIPA access capability information and/or the home network LIPA access capability information by using a broadcast message.

Internet LIPA access capability information and/or home network LIPA access capability information is set in the wireless side network element/home base station gateway according to the network policy.

Among them, the ability of LIPA to Internet can be wireless side network element / home base station gateway LIPA to

The ability of the Internet to further include the ability of the non-closed Subscriber Group (CSG, Close Subscriber Group) user LIPA to Internet;

The capability of the LIPA to home based network may be the capability of the radio side network element/home base station gateway LIPA to home based network, and further includes the capability of the non-CSG user LIPA to home based network.

Whether a non-CSG user can have LIPA to Internet capability or LIPA to home based network capability can be set by the wireless side network element/home base station gateway.

The radio side network element may be a base station, a home base station, or a radio network controller (RNC). Step 301: The user terminal selects the radio side network element/home base station gateway to access the LIPA according to the obtained Internet LIPA access capability information and/or the home network LIPA access capability information.

When the user initiates an attach request, a PDN connection setup request, or a PDP context activation, if the user wants to access LIPA (Internet LIPA access or home network LIPA access;), the user terminal obtains access capability information based on the Internet LIPA obtained through the broadcast channel. And/or the home network LIPA access capability information, and selecting the radio side network element/home base station gateway to access the LIPA, specifically including:

When the user needs to create an Internet LIPA connection, select the wireless side network element/home base station gateway that supports LIPA to Internet capability, and then connect and access. For non-CSG users, it is further determined that the non-CSG users support the LIPA to Internet capability before the connection is accessed. When the user needs to create the home network LIPA connection, select the wireless side network element/home that supports the LIPA to home based network capability. The base station gateway is connected and connected. For non-CSG users, it is further determined that the non-CSG users support the LIPA to home based network capability before the connection is accessed.

It can be seen from the method of the present invention that the wireless side network element/home base station gateway notifies the user terminal of the Internet LIPA access capability information and/or the home network LIPA access capability information, thereby ensuring that the user terminal selects the Internet LIPA access capability. The wireless side network element/home base station gateway, or the wireless side network element/home base station gateway with the home network LIPA access capability. Therefore, the unnecessary rejection of the LIPA access is avoided, the successful access of the local IP access function is ensured, and the access success rate of the user is improved.

Further, in establishing the connection, the user terminal reports the received Internet LIPA access capability information and/or the home network LIPA access capability information to the mobile by initializing a non-access stratum (NAS, Non-Access-Stratum) message. The management unit, the mobility management unit finally decides whether to accept the access request according to the above capabilities. The specific implementation of how the mobile management unit makes decisions is not relevant to the present invention and is not intended to limit the scope of the present invention.

Further, the method of the present invention further includes: when setting on the radio side network element/home base station gateway When the LIPA to Internet capability and/or the LIPA to home based network capability change, the wireless side network element/home base station gateway notifies the changed LIPA to Internet capability information and/or LIPA to home based network capability information to the broadcast message through the broadcast message. User terminal.

4 is a schematic structural diagram of a system for a local IP access control system according to the present invention, as shown in FIG. 4, including a user terminal, a wireless side network element/home base station gateway, where

a user terminal, configured to receive a broadcast message from a wireless side network element/home base station gateway, obtain an Internet LIPA access capability information and/or a home base station network LIPA access capability information from the broadcast message; and obtain an access capability of the Internet LIPA according to the obtained Information and/or home network LIPA access capability information, select the wireless side network element/home base station gateway to access LIPA.

The wireless side network element/home base station gateway is configured to send a broadcast message to the user terminal, where the broadcast message carries the Internet LIPA access capability information and/or the home network LIPA access capability information.

The radio side network element/home base station gateway is further configured to send a broadcast message to the user terminal, where the broadcast message carries the changed LIPAto Internet capability information and/or LIPAto home based network capability information.

The system of the present invention also includes a mobility management unit.

The user terminal is further configured to report the received Internet LIPA access capability information and/or the home network LIPA access capability information to the mobility management by initializing a non-access stratum (NAS, Non-Access-Stratum) message. entity.

The wireless side network element can be a base station, or a home base station, or an RNC.

The mobility management unit is an MME, or a Mobile Switching Center (MSC), or an SGSN.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included. Within the scope of protection of the present invention.

Claims

Claim

A method for local IP access control, characterized in that: the method comprises: a radio side network element/home base station gateway transmitting a local IP access function by using a broadcast message

The LIPA access capability information and/or the home network LIPA access capability information are notified to the user terminal; the user terminal selects the radio side network element/home base station according to the obtained Internet LIPA access capability information and/or the home network LIPA access capability information. The gateway accesses LIPA.

2. The method according to claim 1, wherein the Internet LIPA access capability information is: Internet LIPA access capability information of a wireless side network element/home base station gateway; and the home network LIPA access capability The information is: the home network LIPA access capability information of the wireless side network element/home base station gateway;

When the user needs to create a home network LIPA connection, the wireless side network element/home base station gateway supporting the home network LIPA access capability is selected for connection access.

The method according to claim 2, wherein the Internet LIPA access capability information further comprises: a non-closed subscription group CSG user Internet LIPA access capability information; and the home network LIPA access capability information is further Including: LIPA access capability information of non-CSG user home network;

For non-CSG users, the method also includes:

When the user needs to create an Internet LIPA connection, the user network LIPA access capability information is further determined to support the non-CSG user's Internet LIPA access capability, and then the connection is accessed; when the user needs to create a home network LIPA connection, the home network is further determined. The LIPA access capability information is the LIPA access capability of the home network that supports non-CSG users before the connection is accessed.

The method according to claim 1, wherein when the Internet LIPA access capability and/or the home network LIPA access capability set on the radio side network element/home base station gateway changes, the method Also includes:

The method according to claim 1, wherein the method further comprises: receiving, by the user terminal, the received non-access stratum NAS message, the received Internet LIPA access capability information and/or the home network LIPA The incoming capability information is reported to the mobility management unit, and the mobility management unit finally determines whether to accept the access request according to the foregoing capabilities.

The method according to claim 5, wherein the mobility management unit is a mobility management entity MME, or a mobile switching center MSC, or a serving GPRS support node SGSN.

The method according to claim 1, 4 or 5, wherein the radio side network element is a base station, or a home base station, or a radio network controller RNC.

A system for local IP access control, comprising: a user terminal, a wireless side network element/home base station gateway, wherein

a user terminal, configured to receive a broadcast message from a wireless side network element/home base station gateway, obtain an Internet LIPA access capability information and/or a home network LIPA access capability information from the broadcast message; and obtain the Internet LIPA connection capability information according to the obtained / or home network LIPA connection capability information, select the wireless side network element / home base station access LIPA;

The wireless side network element/home base station gateway is configured to send a broadcast message to the user terminal, where the broadcast message carries the Internet LIPA access capability information and/or the home network LIPA access capability letter.

The system according to claim 8, wherein the wireless side network element/home base station gateway is further configured to: when the Internet LIPA access capability information and/or the home network LIPA access capability change, The user terminal sends a broadcast message, where the broadcast message carries the changed Internet LIPA access capability information and/or home network LIPA access capability information.

10. The system of claim 8 or 9, wherein the system further comprises a mobility management unit,

The system according to claim 10, wherein the mobility management unit is a mobility management entity MME, or a mobile switching center MSC, or a serving GPRS support node SGSN.

The system according to claim 8 or 9, wherein the wireless side network element is a base station, or a home base station, or a radio network controller RNC.