WO2011015092A1 - Procédé et système de commande et notification d'accès ip local - Google Patents

Procédé et système de commande et notification d'accès ip local Download PDF

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Publication number
WO2011015092A1
WO2011015092A1 PCT/CN2010/074250 CN2010074250W WO2011015092A1 WO 2011015092 A1 WO2011015092 A1 WO 2011015092A1 CN 2010074250 W CN2010074250 W CN 2010074250W WO 2011015092 A1 WO2011015092 A1 WO 2011015092A1
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WO
WIPO (PCT)
Prior art keywords
connection
lipa
network
local
capability
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PCT/CN2010/074250
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English (en)
Chinese (zh)
Inventor
霍玉臻
周娜
宗在峰
Original Assignee
中兴通讯股份有限公司
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Publication of WO2011015092A1 publication Critical patent/WO2011015092A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B

Definitions

  • the present invention relates to a home base station system, and more particularly to a method, a notification method, and a system for implementing local operator network protocol (IP, Internet Protocol) access control.
  • IP local operator network protocol
  • EPS 3rd Generation Partnership Project
  • Evolved Packet System evolved packet system
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • PDN GW Packet Data Network Gateway
  • HSS Home Subscriber Server
  • PCRF Policy and Charging Rules Function
  • FIG. 1 is a schematic diagram of a composition of an existing EPS architecture.
  • 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.
  • 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
  • the home base station is a small, low-power base station deployed in indoor places such as homes and offices.
  • the main purpose is to provide users with higher service rates and lower the cost of using high-speed services, while making up for existing distributed 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 , wherein the home base station gateway is mainly used to verify the security of the home base station, and handle 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, responsible for exchanging data of 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 PSGW),
  • the local GGSN (L-GGSN, Local GGSN) may also be a data offloading functional entity.
  • a local access gateway is added, such as Figure 1, 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.
  • FIG. 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.
  • 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 Figure 2, for this The IP access connection, the local IP access data path from the terminal to the wireless 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.
  • L-SGW local access gateway
  • L-PGW local access gateway
  • two connections can be established.
  • the local IP access data path 1 directly accesses the Internet
  • the local IP access data path 2 directly accesses other IP devices on the home network.
  • the mobility management entity needs to determine whether a local IP access connection can be established for this request, and which local IP access connection needs to be established, such as the Internet LIPA (LIPA) To Internet) connection, or LIPA (home to network based network) connection.
  • LIPA Internet LIPA
  • the mobility management entity needs to have the capability of the LIPA to Internet or LIPA to home based network, and whether the different types of users have the capability of LIPA to Internet or LIPA to home based network.
  • the mobility management entity needs to determine whether the existing LIPA connection is valid based on the changed capabilities.
  • the above operations are collectively referred to as LIPA access control.
  • a closed user ie, a CSG user
  • LIPA to Internet capability or LIPA to home based network capability can be achieved by signing up. For non-CSG users, this capability cannot be reflected in the contract.
  • security risks may occur, such as unidentified non-CSG users can access the home network arbitrarily; for some enterprises/publics
  • the home base station and the macro station deployed at the site need non-CSG users to access the home network or the Internet through LIPA. Therefore, it is necessary for the wireless side network element/home base station gateway to set whether the non-CSG user has LIPA to Internet capability or LIPA to home based.
  • the network capability needs to be reported to the core network for the mobility management entity to perform LIPA access control.
  • the mobility management entity performs the access control of the LIPA, it is also necessary to consider whether there is a suitable local access gateway accessible by the wireless side network element/home base station gateway, for example, the wireless side network element/home base station gateway needs to be selected.
  • a local access gateway nearby or with it.
  • the mobility management entity needs to determine whether the LIPA connection established by the user has expired according to the foregoing capability information, for example, the non-CSG user can no longer establish a LIPA to home based network connection, etc., so as to process the failed connection, such as release.
  • the main object of the present invention is to provide two methods for implementing local IP access control, which can reasonably select which type of LIPA connection to create or retain.
  • Another object of the present invention is to provide two systems for implementing local IP access control, which can reasonably select which type of LIPA connection to create or retain.
  • a method for implementing local IP access control comprising:
  • the wireless side network element/home base station gateway reports the Internet local IP access function LIPA capability information to the mobility management entity, and/or the home network LIPA capability information, and/or the wireless side network element/home base station gateway can access the appropriate Local access gateway information;
  • the mobility management entity determines whether to establish LIPA for the user according to the obtained Internet LIPA capability information, and/or the home network LIPA capability information, and/or the appropriate local access gateway information accessible by the wireless side network element/home base station gateway. connection.
  • the method further includes:
  • the wireless side network element/home base station gateway reports the changed capability information to the mobility management entity, and the mobility management entity determines, according to the obtained changed capability information, whether the LIPA connection established by the user has expired and is released. Invalid connection.
  • the method further includes: the mobility management entity sending a specific cause value to the terminal, or sending an Internet LIPA connection, or a home network LIPA connection, or a user local network LIPA connection, or a corporate network local network LIPA connection, or an Internet service
  • a split operation connection, or a specific IP data offload connection failure indication is used to indicate that the terminal LIPA connection is invalid.
  • the mobility management entity directly converts the LIPA connection that cannot be created into a core network connection, and creates a core network connection for the user.
  • the method of reporting the changed capability information to the mobility management entity is: the radio side network element/home base station gateway reports the changed capability information to the mobility management entity by configuring an update request or a registration request.
  • the mobility management entity is a mobility management unit MME, and the mobility management entity releases the invalid LIPA connection, including:
  • the MME Sending, by the MME, a session deletion request to the local packet data network gateway L-PGW, the L-PGW triggers the release of the bearer of the local IP connection, and returns a session deletion response to the MME, and the MME initiates a bearer to the radio side network element.
  • the radio side network element performs an RRC connection configuration process, and sends an RRC connection configuration message to the terminal, where the RRC connection configuration message carries a specific cause value, or carries an Internet LIPA connection, or a home network LIPA connection, or a user local Network LIPA connection, or enterprise network local network LIPA connection, or Internet service traffic distribution connection, or specific IP data offload connection failure indication, used to indicate terminal Internet LIPA connection, or home network LIPA connection, or user local network LIPA connection, or the offload operation connection of the Internet service, or specific IP data offload connection failure;
  • the radio side network element performs an RRC connection configuration process, and sends an RRC connection configuration message to the terminal, where the RRC connection configuration message carries a specific cause value, or carries an Internet LIPA connection, or a home network LIPA connection, or a user local Network LIPA connection, or enterprise network local network LIPA connection, or Internet service traffic distribution connection, or specific IP data offload connection failure indication, used to indicate terminal Internet LIPA connection, or home network LIPA connection,
  • the terminal replies to the radio side network element with an RRC connection configuration complete message, and the radio side network element sends a deactivation response message to the mobility management entity.
  • the information interaction between the mobility management entity and the L-PGW is forwarded by the L-SGW.
  • the L-SGW is set in the radio side network element/home base station gateway; or the L-SGW is located in the core network.
  • the mobility management entity is a serving GPRS support node SGSN, and the mobility management entity releases the failed LIPA connection including:
  • the SGSN sends a PDP context deletion request to the local gateway GPRS support node GGSN; the L-GGSN triggers the release of the bearer of the local IP connection primary connection, and returns a PDP context deletion response to the SGSN;
  • the SGSN sends a PDP context deactivation request to the terminal via the radio side network element, and carries a specific cause value in the PDP context deactivation request, or carries an Internet LIPA connection, or a home network LIPA connection, or a user local network LIPA connection.
  • enterprise network local network LIPA connection, or Internet service shunt operation connection, or specific IP data offload connection failure indication used to indicate terminal Internet LIPA connection, or home network LIPA connection, or user local network LIPA connection, or enterprise network Local network LIPA connection, or offload operation connection of Internet service, or specific IP data offload connection failure; Wireless access 7
  • the reported method includes:
  • the wireless side network element/home base station gateway When the user initiates an attach request, or a packet data network PDN connection setup request, or a service request, or a PDP context activation, the wireless side network element/home base station gateway carries the Internet LIPA capability information in the Sl/Iu initialization connection message, and The home network LIPA capability information, and/or the appropriate local access gateway information accessible by the wireless side network element/home base station gateway, is reported to the mobility management entity.
  • the Internet LIPA capabilities include Internet LIPA connectivity, and/or Internet traffic offload capabilities, and/or specific IP data offload capabilities;
  • the Internet LIPA connection capability information is a capability of a non-closed CSG user Internet LIPA connection, or a capability of a CSG user Internet LIPA connection, or a capability of a wireless side network element/home base station gateway, or any combination of the capability information;
  • the home network LIPA capability includes a home network LIPA connection capability, and/or a user local network LIPA connection capability, and/or an enterprise network local network LIPA connection capability;
  • the home network LIPA connection capability information is a capability of a non-CSG user home network LIPA connection, or a CSG user home network LIPA connection capability, or a non-CSG user local network LIPA connection capability, or a non-CSG user enterprise network local network LIPA connection capability. , CSG user local network LIPA connection capability, or non-CSG user enterprise network local network LIPA connection capability, or wireless side network element / home base station gateway capability, or any combination of the capability information.
  • the wireless side network element is a base station, or a home base station, or a radio network controller RNC;
  • the mobility management entity is a mobility management unit MME, or a mobile switching center MSC, or a serving GPRS support node SGSN.
  • a method for implementing local IP access control, when a home base station gateway is not deployed or in a macro cell includes: When the wireless side network element is registered, the Internet local IP access function LIPA capability information, and/or the home network LIPA capability information, and/or the appropriate local access gateway information accessible by the wireless side network element/home base station gateway are reported. To the mobility management entity;
  • the mobility management entity determines whether to establish LIPA for the user according to the obtained Internet LIPA capability information, and/or the home network LIPA capability information, and/or the appropriate local access gateway information accessible by the wireless side network element/home base station gateway. connection.
  • the Internet LIPA capability information, and/or the home network LIPA capability information, and/or the appropriate local access gateway information that the wireless side network element/home base station gateway can access are carried in the S1 interface setup request message.
  • the method further includes:
  • the wireless side network element reports the changed capability information to the mobility management entity, and the mobility management entity determines, according to the obtained changed capability information, whether the LIPA connection that the user has established has expired, and releases the failed connection.
  • the Internet LIPA capabilities include Internet LIPA connectivity, and/or Internet traffic offload capabilities, and/or specific IP data offload capabilities;
  • the Internet LIPA connection capability information is a capability of a non-closed CSG user Internet LIPA connection, or a capability of a CSG user Internet LIPA connection, or a capability of a wireless side network element/home base station gateway, or any combination of the capability information;
  • the home network LIPA connection capability includes a home network LIPA connection capability, and/or a user local network LIPA connection capability, and/or an enterprise network local network LIPA connection capability;
  • the home network LIPA connection capability information is a capability of a non-CSG user home network LIPA connection, or a CSG user home network LIPA connection capability, or a non-CSG user local network LIPA connection capability, or a non-CSG user enterprise network local network LIPA connection capability. , CSG users Local network LIPA connection capability, or CSG user enterprise network local network LIPA connection capability, or wireless side network element/home base station gateway capability, or any combination of the capability information.
  • a system for implementing local IP access control including a wireless side network element/home base station gateway, a mobility management entity, wherein
  • the wireless side network element/home base station gateway is configured to report the Internet local IP access function LIPA capability information to the mobility management entity, and/or the home network LIPA capability information, and/or the wireless side network element/home base station gateway can access Suitable local access gateway information;
  • a mobility management entity configured to determine, according to received Internet LIPA capability information, and/or home network LIPA capability information, and/or suitable local access gateway information accessible by the wireless side network element/home base station gateway Establish a LIPA connection for the user.
  • the wireless side network element/home base station gateway is further configured to report the changed capability information to the mobility management entity;
  • the mobility management entity is further configured to determine, according to the obtained changed capability information, whether the LIPA connection established by the user has expired, and release the failed connection.
  • the mobility management entity is further configured to send a specific cause value to the terminal, or send an Internet LIPA connection, or a home network LIPA connection, or a user local network LIPA connection, or an enterprise network local network LIPA connection, or a traffic offload of the Internet service.
  • An operational connection, or a specific IP data offload connection failure indication is used to indicate that the terminal LIPA connection is invalid.
  • the mobility management entity is further configured to directly convert a LIPA connection that cannot be created into a core network connection according to an operator policy or a local policy, and create a core network connection for the user.
  • the wireless side network element is a base station, or a home base station, or a radio network controller RNC;
  • the mobility management entity is a mobility management unit MME, or a mobile switching center MSC, or a serving GPRS support node SGSN.
  • the Internet LIPA capabilities include Internet LIPA connectivity, and/or Internet traffic offload capabilities, and/or specific IP data offload capabilities;
  • the home network LIPA connection capability includes a home network LIPA connection capability, and/or a user local network LIPA connection capability, and/or an enterprise network local network LIPA connection capability.
  • the Internet local IP access function LIPA capability information, and/or home network LIPA capability information, and/or the appropriate local access accessible by the wireless side network element/home base station gateway is reported to the mobility management entity;
  • a mobility management entity configured to determine, according to received Internet LIPA capability information, and/or home network LIPA capability information, and/or suitable local access gateway information accessible by the wireless side network element/home base station gateway Establish a LIPA connection for the user.
  • the Internet LIPA capabilities include Internet LIPA connectivity, and/or Internet traffic offload capabilities, and/or specific IP data offload capabilities;
  • the home network LIPA connection capability includes a home network LIPA connection capability, and/or a user local network LIPA connection capability, and/or an enterprise network local network LIPA connection capability.
  • a notification method for implementing local IP access control when the mobility management entity determines that the LIPA connection established by the user has failed and releases the failed connection,
  • the mobility management entity sends a specific cause value to the terminal in the release process, or sends an Internet LIPA connection, or a home network LIPA connection, or a user local network LIPA connection, or an enterprise network local network LIPA connection failure indication, for indicating Terminal Internet LIPA connection or home network LIPA connection is invalid.
  • the terminal After receiving the specific cause value or the failure indication, the terminal initiates a LIPA connection re-establishment process or ignores.
  • the mobility management entity is a mobility management unit MME
  • the release The process includes:
  • the MME Sending, by the MME, a session deletion request to the local packet data network gateway L-PGW, the L-PGW triggers the release of the bearer of the local IP connection, and returns a session deletion response to the MME, and the MME initiates a bearer to the radio side network element.
  • Deactivation request carrying a specific cause value in the bearer deactivation request message, or carrying an Internet LIPA connection, or a home network LIPA connection, or a user local network LIPA connection, or an enterprise network local network LIPA connection failure indication, Used to indicate terminal Internet LIPA connection, or home network LIPA connection, or user local network LIPA connection, or enterprise network local network LIPA connection, or offload operation connection of Internet service, or specific IP data offload connection failure;
  • the radio side network element performs an RRC connection configuration process, and sends an RRC connection configuration message to the terminal, where the RRC connection configuration message carries a specific cause value, or carries an Internet LIPA connection, or a home network LIPA connection, or a user local Network LIPA connection, or enterprise network local network LIPA connection, or Internet service traffic distribution connection, or specific IP data offload connection failure indication, used to indicate terminal Internet LIPA connection, or home network LIPA connection, or user local network LIPA connection, Or the enterprise network local network LIPA connection, or the offload operation connection of the Internet service, or the specific IP data offload connection is invalid;
  • the terminal replies to the radio side network element with an RRC connection configuration complete message, and the radio side network element sends a deactivation response message to the mobility management entity.
  • the mobility management entity is a serving GPRS support node SGSN; the release process includes:
  • the SGSN sends a PDP context deletion request to the local gateway GPRS support node GGSN; the L-GGSN triggers the release of the bearer of the local IP connection primary connection, and returns a PDP context deletion response to the SGSN;
  • the SGSN sends a PDP context deactivation request to the terminal via the radio side network element, on the PDP.
  • the deactivation request below carries a specific cause value, or carries an Internet LIPA connection, or a home network LIPA connection, or a user local network LIPA connection, or a corporate network local network LIPA connection, or a diverted operation connection of an Internet service, or a specific IP data offload connection failure indication, used to indicate terminal Internet LIPA connection, or home network LIPA connection, or user local network LIPA connection, or enterprise network local network LIPA connection, or Internet service shunt operation connection, or specific IP data offload connection Invalid
  • the terminal returns a PDP context deactivation accept message to the SGSN via the radio side network element, and performs a radio access procedure.
  • the wireless side network element/home base station gateway reports the LIPA to Internet capability, and/or the LIPA to home based network capability, and/or the wireless side network element/home to the mobility management entity.
  • the appropriate local access gateway information that the base station gateway can access the mobility management entity establishes a LIPA connection for the user according to the obtained capability information, and determines whether it is an Internet LIPA connection or a home network LIPA connection.
  • the wireless side network element/home base station gateway reports the changed capability information to the mobility management entity, and the mobility management entity determines, according to the obtained changed capability information, whether the LIPA connection established by the user is established. It has expired, and the failed connection is released, and the user is notified of the specific cause value/indication for the user to handle (such as the user re-initiating the creation or non-processing of the LIPA connection). It is reasonable to choose which type of LIPA connection to keep for the user.
  • Figure 1 is a schematic diagram of the composition of an existing EPS architecture
  • FIG. 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
  • FIG. 3 is a flowchart of a method for implementing local IP access control according to the present invention.
  • FIG. 5 is a flowchart of an embodiment of a capability change after access control in a mobile communication system according to the present invention
  • FIG. 6 is a flowchart of an embodiment of a LTE system in which a capability change causes a local IP connection bearer to be released;
  • FIG. 7 is a flow chart of an embodiment of a UTRAN system in the UTRAN system in which a change in capability causes a local IP connection bearer to be released;
  • FIG. 8 is a flowchart of an embodiment of LIPA access control when a user registers in a mobile communication system
  • FIG. 9a is a first schematic diagram of a component structure of a system for implementing local IP access control according to the present invention
  • FIG. 9b is a local IP access according to the present invention
  • the local IP access connection includes an Internet LIPA connection, a home network LIPA connection, a user local network LIPA connection, an enterprise network local network LIPA connection, a diversion operation connection of an Internet service, and a specific IP data offload connection.
  • FIG. 3 is a flowchart of a method for implementing local IP access control according to the present invention. As shown in FIG. 3, the following steps are included:
  • Step 300 The wireless side network element/home base station gateway reports the Internet local IP access function (LIPA to Internet) capability information set on the wireless side network element/home base station gateway to the mobility management entity, and/or the home network LIPA (LIPA) To the home based network, the capability information, and/or the appropriate local access gateway information accessible by the wireless side network element/home base station gateway.
  • LIPA Internet local IP access function
  • LIPA to Internet capabilities include Internet LIPA connectivity, and / or Internet traffic offload capabilities, and / or specific IP data offload capabilities.
  • the capabilities of LIPA to home based network include home network LIPA connectivity, and/or user local network LIPA connectivity, and/or corporate network local network LIPA connectivity.
  • the information, and/or the Internet service offload capability information, and/or the specific IP data offload capability information are set in the radio side network element/home base station gateway according to the intention of the radio side network element/home base station gateway owner.
  • the appropriate local access gateway information accessible by the wireless side network element/home base station gateway can be set in the wireless side network element/home base station gateway.
  • the capability of LIPA to Internet can be the capability of non-CSG users LIPA to Internet, the ability of CSG users LIPA to Internet, and the capability of wireless side network element/home base station gateway.
  • the above three capability information can be arbitrarily combined. It is also possible to send only certain capability information;
  • the capability of LIPA to home based network may be the capability of non-CSG user LIPA to home based network, or the capability of CSG user LIPA to home based network, or the non-CSG user local network LIPA connection capability, or the non-CSG user enterprise network local network.
  • the above capability information can be arbitrarily combined. It is also possible to send only certain capability information.
  • Whether the CSG user and the non-CSG user can have the LIPA to Internet capability or the LIPA to home based network capability can be set by the wireless side network element/home base station gateway. Whether a CSG user can have LIPA to Internet capability or LIPA to home based network capability can also be achieved by signing up.
  • Wireless side network element may be a base station, a home base station, a radio network controller (RNC, Radio Network Controller) 0 mobility management entity may be the MME, the mobile switching center (MSC, Mobile Switching Centre), serving GPRS support node (SGSN, Serving GPRS Support Node).
  • RNC Radio Network Controller
  • MME mobile switching center
  • MSC Mobile Switching Centre
  • SGSN Serving GPRS Support Node
  • the wireless side network element/home base station gateway carries the foregoing Internet LIPA connection capability information in the Sl/Iu initialization connection message, and/or Home network LIPA connection capability information, and / or user local network LIPA connection capability information, and / or enterprise network local network LIPA connectivity Information, and/or Internet traffic offload capability information, and/or specific IP data offload capability information, and/or appropriate local access gateway information accessible by the radio side network element/home base station gateway, and reported to the mobility management entity.
  • the wireless side network element reports its capability to the mobility management entity when registering.
  • the capability information when the capability information is reported, in addition to the capability information carrying the support, the capability information may be supported or not supported by the device information.
  • Step 301 The mobility management entity determines, according to the obtained Internet LIPA capability information, and/or the home network LIPA capability information, and/or the appropriate local access gateway information accessible by the wireless side network element/home base station gateway. The user establishes a LIPA connection.
  • the mobility management entity determines whether to establish an Internet LIPA connection or a home network LIPA connection for the user. For example, when the user needs to create an Internet LIPA connection, it is necessary to determine whether the LIPA to Internet capability of the wireless side network element/home base station gateway is supported. For non-CSG users, it is also necessary to determine whether the non-CSG user LIPA to Internet capability is supported; It is necessary to determine whether there is a suitable local access gateway according to the appropriate local access gateway information accessible by the wireless side network element/home base station gateway. Only when the above capabilities are supported, the mobility management entity can initiate the Internet LIPA for the user. The creation of a connection.
  • the mobility management entity can Create a home network LIPA connection for the user.
  • the method further includes: the wireless side network element/home The base station gateway reports the changed capability information to the mobility management entity by configuring an update request or a registration request.
  • the mobility management entity determines that the user has been determined according to the foregoing capability information. Whether the established LIPA connection has expired and releases the failed connection. It is reasonable to choose which type of LIPA connection to keep for the user.
  • FIG. 9 is a first schematic diagram of a component structure of a system for implementing local IP access control according to the present invention. As shown in FIG. 9a, a wireless side network element/home base station gateway, a mobility management entity, where
  • the wireless side network element/home base station gateway is configured to report the Internet local IP access function LIPA connection capability information, and/or the home network LIPA connection capability information, and/or the user local network LIPA connection capability information to the mobility management entity, and/or Or enterprise network local network LIPA connection capability information, and/or Internet service offload capability information, and/or specific IP data offload capability information, and/or a suitable local access gateway accessible by the wireless side network element/home base station gateway information; a mobility management entity, configured to receive, according to received Internet LIPA connection capability information, and/or home network LIPA connection capability information, and/or user local network LIPA connection capability information, and/or enterprise network local network LIPA connection capability information, And/or Internet service offload capability information, and/or specific IP data offload capability information, and/or appropriate local access gateway information accessible by the radio side network element/home base station gateway, to determine whether to establish a LIPA connection for the user.
  • the mobility management entity is further configured to determine, according to the obtained changed capability information, whether the LIPA connection established by the user has expired, and release the failed connection.
  • the mobility management entity is further configured to send a specific cause value to the terminal, or send an Internet LIPA connection, or a home network LIPA connection, or a user local network LIPA connection, or an enterprise network local network LIPA connection failure indication, for indicating
  • the terminal Internet LIPA connection or home network LIPA connection is disabled for the user to handle (such as the user re-initiating the creation of the LIPA connection or not creating the LIPA connection).
  • the mobility management entity is further configured to directly convert an Internet LIPA connection or a home network LIPA connection that cannot be created into a core network connection according to an operator policy or a local policy, and create a core network connection for the user.
  • the radio side network element is a base station, or a home base station, or an RNC; the mobility management entity is an MME, or an MSC, or an SGSN.
  • FIG. 9b is a second schematic diagram of a component structure of a system for implementing local IP access control according to the present invention.
  • a home base station gateway is not deployed or is in a macro cell, as shown in FIG. 9b, the wireless side network element is included.
  • Dynamic management entity where
  • a mobility management entity configured to receive, according to received Internet LIPA connection capability information, and/or home network LIPA connection capability information, and/or user local network LIPA connection capability information, and/or enterprise network local network LIPA connection capability information, And/or Internet service offload capability information, and/or specific IP data offload capability information, and/or appropriate local access gateway information accessible by the radio side network element/home base station gateway, to determine whether to establish a LIPA connection for the user.
  • FIG. 4 is a flowchart of an embodiment of LIPA access control when a user connection is established in a mobile communication system according to the present invention. As shown in FIG. 4, the method includes:
  • Step 400 The terminal needs to establish a radio resource control (RRC) connection before the communication, as a bearer of the signaling message or the service data.
  • RRC radio resource control
  • Step 401 The terminal sends an initialization non-access stratum (NAS, Non-Access-Stratum) message to perform an attach operation.
  • NAS initialization non-access stratum
  • the user's operation at this time can be an Attach Request, a PDN Connectivity Request.
  • the PDN connection establishment is implemented by the PDP context activation procedure. Therefore, in the UTRAN system, the operation initiated by the user at this time may also be a PDP context activation.
  • Step 402 The radio side network element sends an initial UE message to the mobility management entity, and forwards the NAS message/PDP context activation request to the mobility management entity.
  • the wireless side network element first transfers the initial UE message.
  • the home base station gateway is sent, and then the home base station gateway sends the message to the mobility management entity.
  • the wireless side network element/home base station gateway will set the LIPA to Internet capability and/or LIPA to home based network capability on the wireless side network element/home base station gateway, and/or the wireless side network element/home base station gateway.
  • the appropriate local access gateway information that can be accessed is carried in the initial UE message (ie, Sl/Iu message) and sent to the mobility management entity.
  • LIPA to Internet capabilities include Internet LIPA connectivity, Internet traffic offload capabilities, and specific IP data offload capabilities.
  • the capability of LIPA to Internet can be the capability of non-CSG users LIPA to Internet, the ability of CSG users LIPA to Internet, and the capability of wireless side network element/home base station gateway.
  • the above capability information may be arbitrarily combined, or only some capability information may be transmitted;
  • LIPA to home based network includes LIPA connectivity for home networks, LIPA connectivity for users' local networks, and LIPA connectivity for enterprise networks.
  • the capability of LIPA to home based network may be the capability of non-CSG user LIPA to home based network, or the capability of CSG user LIPA to home based network, or the non-CSG user local network LIPA connection capability, or the non-CSG user enterprise network local network.
  • the above capability information can be combined in two. It is also possible to send only certain capability information.
  • the mobility management entity In the LTE system, the mobility management entity is the MME; in the UMTS system, the mobility management entity is the SGSN.
  • Step 403 The mobility management entity may initiate authentication and security procedures to authenticate the user. This step is an existing process and can be implemented by using an existing method, and is not described here.
  • Step 404 The mobility management entity finds that a local IP connection needs to be established according to an access point name (APN, Access Point Name) or a local access identifier (the identifiers can be carried in the message in step 402).
  • the mobility management entity reports the radio side network element/home base station gateway according to step 402. Capability information, which determines which LIPA connection can be created for the user.
  • the mobility management entity can initiate the creation of the Internet LIPA connection for the user.
  • the user needs to create a home network LIPA connection, it is necessary to determine whether the LIPA to home based network capability of the wireless side network element/home base station gateway is supported; if it is a non-CSG user, it is also necessary to determine whether the non-CSG user LIPA to home based network capability is supported; In addition, it is also required to determine whether there is a suitable local access gateway according to the appropriate local access gateway information accessible by the wireless side network element/home base station gateway, and the mobility management entity can initiate the user for the user only when the above capabilities are supported. Creation of a network LIPA connection.
  • the capability information reported in step 402 is the capability of the wireless side network element/home base station gateway and the capability of the non-CSG user, and the judgment behavior of the mobility management entity is described.
  • Step 405 According to the judgment result of step 404, if the mobility management entity decides that an Internet LIPA connection or a home network LIPA connection can be created for the user, the existing process of user access is continued. According to the process initiated by the user in step 401, the process that the user continues may be an attach process, a PDN connection establishment process, or a PDP context activation process.
  • Step 406 to step 407 According to the judgment result of step 404, if the mobility management entity decides that the Internet LIPA connection or the home network LIPA connection cannot be created for the user, the NAS reject message is sent, and the access is rejected. At the same time, in the reject message, a specific cause value may be carried to indicate that the user cannot establish an Internet LIPA connection or a home network LIPA connection.
  • the process that the user rejects at this time may be an attach process, a PDN connection establishment process, or a PDP context activation process.
  • the denial message may not be sent according to the operator policy or the local policy, and the mobility management entity directly converts the Internet LIPA connection/home network LIPA connection that cannot be created into the core network connection.
  • the mobility management entity leverages existing processes to create core network connections for users.
  • FIG. 5 is a flowchart of an embodiment of access control after capability change in a mobile communication system according to the present invention.
  • LIPA to Internet capability is set on the wireless side network element/home base station gateway, and/or LIPA to The home based network capability, and/or the appropriate local access gateway information accessible by the wireless side network element/home base station gateway, includes the following steps:
  • Step 500 The wireless side network element sends the changed capability information to the mobility management entity of the core network.
  • the radio side network element will change the LIPA to Internet capability and/or LIPA to home based network capability, and/or the appropriate local access gateway information accessible by the radio side network element/home base station gateway, It is carried in the configuration update request message and sent to the mobility management entity. If there is a home base station gateway, the wireless side network element first sends a configuration update message to the home base station gateway, and then the home base station gateway forwards the information to the mobility management entity.
  • the wireless side network element will change the LIPA to Internet capability, and/or the LIPA to home based network capability, and/or the appropriate local access gateway information accessible by the wireless side network element/home base station gateway. It is carried in the registration request message, sent to the home base station gateway, and then forwarded to the mobility management entity by the home base station gateway.
  • the mobility management entity is an MME in the LTE system, and the mobility management entity is an SGSN in the UTRAN system.
  • Step 501 The mobility management entity responds to the wireless side network element, and configures an update response in the LTE system, and registers a response message in the UTRAN system.
  • Step 502 The mobility management entity checks whether the user has a LIPA connection. If yes, it is determined whether the LIPA connection of the user is invalid according to the changed capability reported by the wireless side network element/home base station gateway in step 500.
  • the user has an Internet LIPA connection, it is necessary to determine whether the LIPA to Internet capability of the wireless side network element/home base station gateway is supported. If it is a non-CSG user, it is also necessary to determine whether the non-CSG user LIPA to Internet capability is supported, only when the above capabilities are supported.
  • the mobility management entity can determine that the user's Internet LIPA connection is valid. If the user has a home network LIPA connection, you need to determine whether the LIPA to home based network capability of the wireless network element/home base station gateway is supported.
  • the mobility management entity can determine that the user's home network LIPA connection is valid. If the information of the appropriate local access gateway accessible by the wireless network element/home base station gateway changes, and the local access gateway used by the LIPA connection of the user changes, the LIPA connection is determined to be invalid.
  • the capability information reported in step 500 is the capability of the wireless side network element/home base station gateway and the capability of the non-CSG user as an example.
  • Step 503 According to the determination of the mobility management entity in step 502, if the LIPA connection existing by the user continues to be valid, no operation is performed and the process ends. If the user's existing LIPA connection fails, the mobility management entity releases the failed LIPA connection. The specific release process is described in detail below with respect to Figures 6 and 7.
  • the capability change information of the radio side network element/home base station gateway that triggers the mobility management entity to release the LIPA connection is reported by the radio side network element/home base station gateway to the mobility management entity by using a configuration update request or a registration request.
  • the information may also be obtained by the mobility management entity by other means.
  • the mobility management entity determines whether the LIPA connection is invalid and the processing after the failure remains unchanged, that is, the manner in which the mobility management entity acquires the information. Does not affect the mobility management entity to determine whether the LIPA connection is invalid, and the processing after the failure.
  • the mobility management entity is an MME in the LTE system, and an SGSN in the UTRAN system.
  • the L-SGW is located in the radio side network element/home base station gateway, and the mobility management entity is the MME.
  • the method includes the following steps:
  • Step 600 When the user has attached to the network and has a local IP connection, as described in FIG. 5, the MME determines that the user's Internet LIPA connection/home network LIPA connection is invalid according to the changed capability reported by the wireless side network element/home base station gateway. The MME releases the failed LIPA connection.
  • Step 601 The MME sends a session deletion request message to the L-SGW.
  • Step 602 Receive a message sent by the MME, and the L-SGW sends a session deletion request message to the L-PGW.
  • Step 603 After receiving the session deletion request message, the L-PGW triggers the release of the bearer of the local IP connection. The L-PGW sends a session deletion response message to the L-SGW.
  • Step 604 The L-SGW forwards the session deletion response message to the MME.
  • Step 605 The MME initiates a bearer deactivation request to the radio side network element.
  • the bearer deactivation request message carries a specific cause value, or an Internet LIPA connection or home network LIPA connection or a user local network LIPA connection or a corporate network local network LIPA connection failure indication, for indicating a terminal Internet LIPA connection or a home network LIPA connection Or the user local network LIPA connection or the enterprise network local network LIPA connection is invalid.
  • Step 606 The radio side network element performs an RRC connection configuration process, and sends an RRC connection configuration message to the terminal, where the RRC connection configuration message carries a specific cause value, or an Internet LIPA connection or a home network LIPA connection or a user local network LIPA connection or Enterprise network local network LIPA connection, or Internet service shunt operation connection, or specific IP data offload connection failure indication, used to indicate terminal Internet LIPA connection or home network LIPA connection or user local network LIPA connection or enterprise network local network LIPA connection or The offloading operation connection of the Internet service or the specific IP data offload connection is invalid.
  • the RRC connection configuration message carries a specific cause value, or an Internet LIPA connection or a home network LIPA connection or a user local network LIPA connection or Enterprise network local network LIPA connection, or Internet service shunt operation connection, or specific IP data offload connection failure indication, used to indicate terminal Internet LIPA connection or home network LIPA connection or user local network LIPA connection or enterprise network local network LIPA connection or The offloading operation connection of the Internet service
  • Step 607 The terminal returns an RRC connection configuration complete message to the radio side network element. After receiving the above LIPA connection failure indication in the RRC connection configuration message, the terminal may initiate the LIPA connection. The establishment process can also be done without processing.
  • Step 608 The radio side network element sends a deactivation response message to the MME.
  • the MME determines, according to the changed capability of the wireless side network element/home base station gateway, the user's Internet LIPA connection/home network LIPA connection failure as an example, and describes the processing of the MME releasing the invalid LIPA connection.
  • the change of the wireless side network element/home base station gateway capability information may also be obtained by the mobility management entity by other means.
  • the mobility management entity determines whether the LIPA connection is invalid and the processing after the failure remains unchanged, that is, the mobile The manner in which the sex management entity obtains the wireless side network element/home base station gateway capability change information does not affect whether the mobility management entity determines whether the LIPA connection is invalid or not, and the processing after the failure.
  • the local access gateway is an L-PGW and an L-SGW, and the L-SGW is set in the radio side network element/home base station gateway.
  • the process of releasing the LIPA connection in the absence of the L-SGW is similar to the process shown in Figure 6.
  • the MME needs to directly interact with the L-PGW.
  • the L-SGW does not participate in the process.
  • the process of releasing the LIPA connection when the L-SGW is located in the core network is the same as that shown in Figure 6.
  • the MME needs to perform message interaction with the L-SGW located in the core network, and details are not described herein.
  • FIG. 7 is a flowchart of an embodiment of a UTRAN system in which a capability change causes a local IP connection bearer to be released. As shown in FIG. 7, the method includes:
  • Step 700 When the user has attached to the network and has a local IP connection, as described in FIG. 5, the SGSN determines the user's Internet LIPA connection/home network LIPA connection according to the changed capability reported by the wireless side network element/home base station gateway. User local network LIPA connection/enterprise network local network LIPA connection/Internet service shunt operation connection/specific IP data offload connection failure, SGSN initiates release of invalid LIPA connection.
  • Step 701 The SGSN sends a PDP context deletion request to the L-GGSN.
  • Step 702 The L-GGSN receives the message sent by the SGSN, triggering the local IP connection to connect to the main connection. The connected bearer is released. The L-GGSN responds to the SGSN with a PDP Context Delete Response. Step 703: The SGSN sends a PDP context deactivation request to the terminal via the radio side network element, where the PDP context deactivation request carries a specific cause value, or an Internet LIPA connection or a home network LIPA connection or a user local network LIPA connection or a corporate network local.
  • a network LIPA connection or a traffic offload connection for the Internet service or a specific IP data offload connection failure indication for indicating a terminal Internet LIPA connection or a home network LIPA connection or a user local network LIPA connection or a corporate network local network LIPA connection or an offload operation of the Internet service Connection or specific IP data offload connection is invalid.
  • Step 704 The terminal returns a PDP context deactivation accept message to the SGSN via the radio side network element. After receiving the above LIPA connection failure indication in the PDP context deactivation message, the terminal may initiate the LIPA connection establishment process, or may not process it.
  • Step 705 Perform a radio access bearer release procedure.
  • the SGSN determines the processing of the LIPA connection in which the SGSN releases the failure according to the ability of the SGSN to determine the user's Internet LIPA connection/home network LIPA connection failure according to the changed capability reported by the wireless side network element/home base station gateway.
  • the change of the wireless side network element/home base station gateway capability information may also be obtained by the mobility management entity by other means.
  • the mobility management entity determines whether the LIPA connection is invalid and the processing after the failure remains unchanged, that is, the mobile The manner in which the sex management entity obtains the wireless side network element/home base station gateway capability change information does not affect whether the mobility management entity determines whether the LIPA connection is invalid or not, and the processing after the failure.
  • Step 800 The radio side network element sends an S1 interface setup request message to the mobility management entity to request to establish an S1 connection.
  • the wireless side network element carries the set LIPA to Internet capability information, and/or LIPA to home based network capability information, and/or the appropriate local access gateway information accessible by the wireless side network element/home base station gateway.
  • the S1 interface setup request message is sent to the mobility management entity.
  • LIPA to Internet capabilities include Internet LIPA connectivity, Internet traffic offload capabilities, and specific IP data offload capabilities.
  • the capability of LIPA to Internet can be the capability of non-CSG users LIPA to Internet, the ability of CSG users LIPA to Internet, and the capability of wireless side network element/home base station gateway.
  • the above three kinds of capability information may be arbitrarily combined, or only some capability information may be transmitted.
  • LIPA to home based network includes LIPA connectivity for home networks, LIPA connectivity for users' local networks, and LIPA connectivity for enterprise networks.
  • the capability of LIPA to home based network may be the capability of non-CSG user LIPA to home based network, or the capability of CSG user LIPA to home based network, or the non-CSG user local network LIPA connection capability, or the non-CSG user enterprise network local network.
  • the above three kinds of capability information can be arbitrarily combined. It is also possible to send only certain capability information.
  • the mobility management entity is the MME.
  • Step 801 The mobility management entity sends a response message to the radio side network element to the S1 interface.
  • Step 802 The mobility management entity saves the LIPA to Internet capability information and/or LIPA to home based network capability information obtained by the copper through step 800.
  • the mobility management entity determines which LIPA connection can be created for the user according to the capability of the wireless side network element saved in step 802.
  • the user When the user needs to create an Internet LIPA connection, it is necessary to determine the LIPA to the wireless side network element. Whether the Internet capability is supported; if it is a non-CSG user, it is also necessary to determine whether the non-CSG user LIPA to Internet capability is supported. In addition, it is necessary to determine whether there is a suitable one according to the appropriate local access gateway information accessible by the wireless side network element/home base station gateway.
  • the local access gateway the mobility management entity can initiate the creation of an Internet LIPA connection for the user only when the above capabilities are supported. If you need to create a home network LIPA connection, you need to determine whether the LIPA to home based network capability of the wireless network element/home base station gateway is supported.
  • the capability information reported in step 800 is the capability of the wireless side network element/home base station gateway and the capability of the non-CSG user as an example. Other reported combinations of capabilities are similar and will not be described in detail.

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  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention porte sur un système et sur un procédé de commande et de notification d'un accès IP local (LIPA). Un élément de réseau sans fil/une passerelle de nœud B de rattachement transmet des informations de capacité du LIPA vers Internet et/ou des informations de capacité du LIPA vers un réseau de rattachement, et/ou des informations acceptables selon lesquelles une entité de gestion de mobilité (MME) peut accéder à l'élément de réseau sans fil/ à la passerelle de nœud B de rattachement par l'intermédiaire d'une passerelle d'accès local. Conformément aux informations de capacité obtenues, la MME établit une connexion du LIPA à un abonné, et détermine si la connexion est une connexion du LIPA à Internet ou du LIPA à un réseau de rattachement. Le procédé de la présente invention peut de manière raisonnable sélectionner quel type de connexion établir du LIPA à l'abonné, et assurer la sécurité du LIPA d'abonné non CSG (groupe d'abonnés fermé).
PCT/CN2010/074250 2009-08-06 2010-06-22 Procédé et système de commande et notification d'accès ip local WO2011015092A1 (fr)

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