WO2013104248A1 - 一种本地访问连接的处理方法和装置 - Google Patents

一种本地访问连接的处理方法和装置 Download PDF

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Publication number
WO2013104248A1
WO2013104248A1 PCT/CN2012/087282 CN2012087282W WO2013104248A1 WO 2013104248 A1 WO2013104248 A1 WO 2013104248A1 CN 2012087282 W CN2012087282 W CN 2012087282W WO 2013104248 A1 WO2013104248 A1 WO 2013104248A1
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WO
WIPO (PCT)
Prior art keywords
local access
csg
local
pdn connection
user
Prior art date
Application number
PCT/CN2012/087282
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English (en)
French (fr)
Inventor
王静
梁爽
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US14/371,047 priority Critical patent/US9629179B2/en
Priority to EP12865098.3A priority patent/EP2790457B1/en
Priority to JP2014551504A priority patent/JP5859680B2/ja
Publication of WO2013104248A1 publication Critical patent/WO2013104248A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/02—Hybrid access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
    • H04L41/0816—Configuration setting characterised by the conditions triggering a change of settings the condition being an adaptation, e.g. in response to network events
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/32—Release of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/38—Connection release triggered by timers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/186—Processing of subscriber group data

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a local access connection processing method and apparatus for use in a local access function (including local IP access, selective IP transmission offload).
  • FIG. 1 shows a schematic structural diagram of an evolved packet domain system. As shown in FIG. 1, the entire EPS system is divided into two parts: a radio access network and a core network. In the core network, a Home Subscriber Server (HSS), a Mobility Management Entity (MME), a Serving GPRS Support Node (SGSN), and a policy are included.
  • HSS Home Subscriber Server
  • MME Mobility Management Entity
  • SGSN Serving GPRS Support Node
  • policy a policy
  • PCRF Policy and Charging Rule Function
  • S-GW Serving Gateway
  • PDN Gateway Packet Data Gateway
  • PDN Packet Data Network
  • the home subscriber server is the permanent storage location of the subscriber's subscription data and is located on the home network to which the subscriber subscribes.
  • the mobility management entity is the location where the user subscription data is stored in the current network, responsible for terminal-to-network non-access layer signaling management, terminal security verification function, terminal mobility management, user idle mode tracking and paging. Management functions and bearer management.
  • GPRS support node is a global mobile communication system (Global System for Mobile)
  • GSM Global System for Mobile communications
  • GSM Enhanced Data Rate for GSM Evolution
  • GSM EDGE Radio Access Network GSM Radio Access Network
  • GERAN Universal Mobile Telecommunications System
  • Universal Mobile Telecommunications System Universal Mobile Telecommunications System
  • UMTS Terrestrial Radio Access Network
  • UTRAN is a service support point for users to access the core network. It is functionally similar to the mobility management entity and is responsible for user location update, paging management, and bearer management.
  • the service gateway is a gateway of the core network to the wireless system, and is responsible for the user plane bearer of the terminal to the core network, the data buffer in the terminal idle mode, the function of initiating the service request by the network side, the lawful interception and the packet data routing and forwarding function; It is responsible for counting the situation in which the user terminal uses the wireless network, and generates the CDR of the terminal using the wireless network, and transmits it to the charging gateway.
  • the packet data gateway is a gateway of the evolved system and the external packet data network of the system. It is connected to the Internet and the packet data network, and is responsible for the Internet Protocol (IP) address allocation, charging function, and packet filtering of the terminal. And functions such as policy control.
  • IP Internet Protocol
  • the packet data network is the operator's IP service network, which provides IP services to users through the carrier's core network.
  • the policy charging rule function entity is a server in the evolved system that provides rules for charging control, online credit control, threshold control, and quality of service (QoS) policies.
  • the radio access network is composed of an evolved base station (Evolved NodeB, eNB for short) and a 3G radio network controller (RNC). It is mainly responsible for transmitting and receiving wireless signals, and is connected through the air interface and the terminal. Radio resources, resource scheduling, and access control for the air interface.
  • Evolved NodeB evolved NodeB
  • RNC 3G radio network controller
  • the service GPRS support node is an upgraded SGSN, which can support the S4 interface between the service gateway and the mobility management entity MME by using GPRS Tunneling Protocol version 2 (GTPv2). Interoperability.
  • GTPv2 GPRS Tunneling Protocol version 2
  • the Packet Switching (PS) domain network architecture is different from that of Figure 1.
  • the SGSN and the MME are connected by the Gn interface, and the GPRS Tunneling Protocol version 1 (hereinafter referred to as GTPvl) is used for interworking.
  • GTPvl GPRS Tunneling Protocol version 1
  • the SGSN cannot be connected to the serving gateway.
  • the Gn interface is connected to the Gateway GPRS Support Node (GGSN) to directly access the packet data network.
  • GGSN Gateway GPRS Support Node
  • a Home NodeB (HNB for short) or an evolved Home eNodeB (HeNB for short) is a small, low-power base station that is exclusive to some users.
  • Resources deployed in private locations such as homes, groups, companies, or schools, primarily to provide users with higher service rates and lower the cost of using high-rate services, while compensating for existing distributed cellular wireless communication systems. insufficient.
  • the advantages of home base stations are affordability, convenience, low power output, plug and play, broadband access, and the use of single mode terminals.
  • the home base station can be directly connected to the core network, as shown in FIG. 2a, or can be accessed by the logical network element of the home base station gateway, as shown in FIG. 2b, where the main function of the home base station gateway is: verifying the home base station Security: Handling the registration of the home base station, performing operation and maintenance management on the home base station, configuring and controlling the home base station according to the operator's requirements, and exchanging data of the core network and the home base station.
  • selective IP traffic offload SIPTO
  • the terminal adds local gateways to other IP devices in the home network, IP devices in the enterprise network, or the Internet access, as shown in Figure 3. Show.
  • IPTO selective IP traffic offload
  • the addition of a local access gateway provides strong support for local access technologies.
  • the local gateway can be combined with the wireless side network element or near the wireless side network element (ie, external).
  • the local gateway includes a local PGW (Local Gateway, L-GW for short) and a local GGSN (Local GGSN, L-GGSN for short), and has the functions of a part of the PGW and the GGSN.
  • the data flow path for local access and traditional core network access is shown in Figure 3.
  • traditional core network access data paths and local access data paths can be established at the same time.
  • the local access data path goes from the terminal to the wireless side network element to the local access gateway (such as L-PGW and L-GGSN), and then accesses the local network resources, and the data transmission does not pass through the core network.
  • the local access gateway such as L-PGW and L-GGSN
  • two connections can be established.
  • the first local access data path directly accesses the Internet (Internet IP connection, ie SIPTO connection).
  • the second local access data path directly accesses other IP devices on the home network (home network IP connection, ie LIPA connection).
  • the local network resources formed by IP devices in the home or enterprise network are only used by users authorized to access the local network.
  • Such users store local access subscription information in the HSS.
  • the local access subscription information changes dynamically, it is not clear how the network handles the activated local access connection. Summary of the invention
  • the technical problem to be solved by the present invention is a processing method and apparatus for a local access connection, which provides a processing scheme for a local access connection when a local access subscription information changes.
  • the present invention provides a method for processing a local access connection, including:
  • the core network mobility management unit When the user terminal is in the connected state and is accessed through the hybrid mode home base station, if the core network mobility management unit detects that the closed subscriber group (CSG) membership of the user terminal has changed or times out, the core network mobility management unit initiates the The affected Local Access Packet Data Network (PDN) connection is released, or the home base station is notified to trigger the local gateway to initiate an affected local access PDN connection release.
  • CSG closed subscriber group
  • PDN Local Access Packet Data Network
  • the CSG membership of the user terminal changes or times out, including: the user terminal changes from a CSG subscription user to a non-CSG subscription user.
  • the released local access PDN connection comprises: all activated local access PDN connections, or a local access PDN corresponding to an access point name (APN) bound by the CSG.
  • APN access point name
  • the core network mobility management unit notifies the home base station to trigger the local gateway to initiate local access PDN connection release, including:
  • the mobility management unit notifies the home base station to trigger the local gateway to initiate a local access PDN connection release by using an indication in the S1 message or the Iu interface message.
  • the S1 message includes: an evolved radio access bearer modification request message;
  • the Iu interface message includes: a radio access bearer modification request message.
  • the indication includes: current CSG membership information of the user terminal;
  • the home base station After receiving the indication, the home base station determines by comparison that if the CSG member relationship of the user terminal changes, the local gateway is triggered to initiate a local access PDN connection release.
  • the indication comprises: a local access deactivation indication; after receiving the indication, the home base station directly triggers the local gateway to initiate a local access PDN connection release.
  • the present invention further provides a processing device for a local access connection, including a detection module and a packet data network (PDN) connection release module, including:
  • the detecting module is configured to: when the user terminal is in the connected state and is accessed by the hybrid mode home base station, detecting whether the closed user group (CSG) membership of the user terminal changes or times out;
  • CSG closed user group
  • the PDN connection release module is configured to: when the detection module detects that the CSG membership of the user terminal changes or times out, initiates an affected local access PDN connection release, or notifies the home base station to trigger the local gateway to be affected. The local access PDN connection is released.
  • the CSG membership of the user terminal changes or times out, including: preferably, the released local access PDN connection includes: all activated local access PDN connections, or APNs bound to the CSG The corresponding local access PDN connection.
  • the PDN connection release module is configured to: notify the home base station to trigger the local gateway to initiate local access PDN connection release in the following manner:
  • the PDN connection release module notifies the home base station to trigger the local gateway by using an indication in the S1 message or the Iu interface message Initiate a local access PDN connection release.
  • the S1 message includes: an evolved radio access bearer modification request message;
  • the Iu interface message includes: a radio access bearer modification request message.
  • the indication comprises: CSG membership information of the user terminal or a local access deactivation indication.
  • the network side can release the local access connection to avoid unnecessary resource waste.
  • 1 is a schematic structural diagram of an evolved packet domain system
  • FIG. 2a and 2b are schematic diagrams of a home base station accessing a core network
  • 3 is a schematic diagram of a data flow path of local access and traditional core network access
  • FIG. 4 is a flowchart of Embodiment 1 of the present invention
  • FIG. 5 is a flow chart of Embodiment 2 of the present invention.
  • FIG. 6 is a schematic structural view of a device according to Embodiment 3 of the present invention.
  • Figure 7 is a flow chart of an application example 1 of the present invention.
  • Figure 8 is a flow chart of an application example 2 of the present invention.
  • Figure 9 is a flow chart of an application example 3 of the present invention.
  • Figure 10 is a flow chart of an application example 4 of the present invention.
  • FIG 11 is a flowchart of an application example 5 of the present invention.
  • Figure 12 is a flow chart of an application example 6 of the present invention.
  • Figure 13 is a flow chart of an application example 7 of the present invention.
  • Figure 14 is a flow chart of an application example 8 of the present invention. Preferred embodiment of the invention
  • Embodiment 1 As shown in Figure 4, the following steps are included:
  • Step 401 When the user is in the connected state and accesses through the hybrid mode home base station, if the core network mobility management unit detects that the CSG (closed user group) membership of the user changes or times out (for example, changes from the CSG subscription user) Non-CSG contracted users);
  • the core network mobility management unit is an MME in the EPC network, and is an SGSN in the GPRS network (including an SGSN supporting a Gn interface, an SGSN supporting a Gp interface, or an SGSN supporting an S4 interface).
  • Step 402 The core network mobility management unit initiates release of all activated local access PDN connections or notifies the home base station to trigger the local gateway to initiate activation of all locally accessed PDN connections.
  • the mobility management unit notifies the home base station to trigger the local gateway to initiate all local access PDN connection activations that have been activated through an indication in the S1 message or the Iu interface message.
  • the home base station receives the above trigger indication, it can notify the local gateway through the Sxx interface or the internal interface to initiate the release of all activated local access PDN connections.
  • the indication in the S1 message e.g., E-RAB modification message
  • the Iu interface message e.g., RAB modification message
  • the home base station If the home base station receives the user CSG membership relationship, the home base station triggers the local gateway to initiate a local access PDN connection release by comparing the previous CSG membership relationship to find that the CSG membership of the user changes from the CSG subscription user to the non-CSG subscription user.
  • the home base station If the home base station receives the local access deactivation indication, the home base station directly triggers the local gateway to initiate a local access PDN connection release.
  • This embodiment is applied to the scenario where the user subscribes to the wild card APN, as shown in FIG. 5, and includes the following steps:
  • Step 501 When the user is in the connected state and accesses through the hybrid mode home base station, when the core network mobility management unit detects that the CSG membership of the user changes or times out (for example, changes from a CSG subscription user to a non-CSG subscription user) ;
  • the core network mobility management unit is an MME in the EPC network, and is an SGSN in the GPRS network (including an SGSN supporting a Gn interface, an SGSN supporting a Gp interface, or an SGSN supporting an S4 interface).
  • Step 502 The core network mobility management unit initiates a local access PDN connection corresponding to the APN bound to the CSG to release or notify the home base station to trigger the local gateway to initiate a local access PDN connection corresponding to the APN bound by the CSG.
  • this embodiment since the user subscribes to the wild card APN, when the PDN connection is released, the local access APN corresponding to the APN bound to the CSG is released. Connect, not all APN connections.
  • the mobility management unit notifies the home base station to trigger the local gateway to initiate a local access PDN connection release corresponding to the ASG bound by the CSG through an indication in the S1 message or the Iu interface message.
  • the home base station may notify the local gateway through the Sxx interface or the internal interface to initiate a local access PDN connection release with the APN subscription.
  • the indication in the S1 message e.g., the E-RAB bearer modification message
  • the Iu interface message e.g., the RAB bearer modification message
  • the home base station If the home base station receives the user CSG membership relationship, the home base station triggers the local gateway to initiate a local access PDN connection release by comparing the previous CSG membership relationship to find that the CSG membership of the user changes from the CSG subscription user to the non-CSG subscription user.
  • the home base station If the home base station receives the local access deactivation indication, the home base station directly triggers the local gateway to initiate a local access PDN connection release.
  • the method includes: a detection module and a PDN connection release module, including:
  • the detecting module is configured to detect, when the user terminal is in a connected state and access through the hybrid mode home base station, whether the CSG membership relationship of the user terminal changes or times out;
  • the PDN connection release module is configured to initiate a local access PDN connection release when the detecting module detects that the CSG membership of the user terminal changes or times out, or notify the home base station to trigger the local gateway to initiate a local access PDN connection release.
  • the above-mentioned released local access PDN connection includes: all local access PDN connections that have been activated, or a local access PDN connection corresponding to the APN bound to the CSG.
  • the PDN connection release module is configured to notify the home base station to trigger the local gateway to initiate a local access PDN connection release by: sending an S1 message (eg, an evolved radio access bearer modification request message) or an Iu interface message (eg, wireless)
  • S1 message eg, an evolved radio access bearer modification request message
  • Iu interface message eg, wireless
  • the indication in the Access Bearer Modification Request message informs the home base station to trigger the local gateway to initiate a local access PDN connection release.
  • the foregoing indications include: CSG membership information of the user terminal or a local access deactivation indication.
  • FIG. 7 is a flowchart of an application example 1 of the present invention.
  • the EPC network is taken as an example to describe a method for processing a local access connection when a user locally accesses subscription data changes, as follows:
  • This embodiment uses the user CSG (closed user group) subscription timeout saved in the core network mobility management unit MME as an example to describe the local access connection processing method.
  • Step 701 The core network mobility management unit MME saves the user's CSG subscription information. If the user is in the connected state and accesses the network through the hybrid mode home base station, the MME detects that the CSG ID corresponding to the home base station times out and causes the CSG membership of the user. When a change occurs (from a CSG subscription user to a non-CSG subscription user), the MME needs to initiate a local access PDN connection release;
  • the MME initiates the release of all locally accessed PDN connections that have been activated. If the user subscribes to the Wildcard APN, the MME initiates the release of the local access PDN connection corresponding to the APN bound to the CSG in the session management context, and the local access PDN connection corresponding to the APN that is not bound to the CSG in the session management context is not # Zhang handled.
  • Each CSG subscription information includes a timeout period for the user to use the CSG ID.
  • a CSG ID timeout period expired by the user expires, indicating that the user's subscription to the CSG ID is invalid, the user's membership in the CSG is from the CSG.
  • the signing user becomes a non-CSG signing user.
  • Step 702 The MME sends a new CSG membership relationship (from a CSG subscription subscriber to a non-CSG subscription subscriber) to the HeNB through the UE context modification request message (hereinafter referred to as SI AP) in the S1 interface application protocol, and the HeNB uses the new CSG.
  • SI AP UE context modification request message
  • the member relationship performs the air interface resource allocation
  • Step 703 The HeNB responds to the SI AP UE context modification response message;
  • Step 704 The MME initiates a local access PDN connection deletion process according to the determination result of step 701.
  • Step 705-706 the user plane tunnel corresponding to the local access connection in the S-GW and the L-GW is released;
  • Step 707 The S-GW sends a session deletion response message to the MME.
  • Steps 708-709 the air interface bearer release corresponding to the local access connection.
  • FIG. 8 is a flowchart of an application example 2 of the present invention.
  • the EPC network is taken as an example to describe a method for processing a local access connection when a user locally accesses subscription data changes, as follows:
  • the subscription data update causes the user CSG subscription saved in the core network mobility management unit MME to be invalid as an example to perform a local access connection processing method.
  • Step 801 The user CSG subscription data is updated in the HSS, and the HSS sends an insert user data request message to the MME, where the updated CSG subscription information is carried.
  • the MME When the MME discovers that the current CSG membership of the user changes according to the new CSG subscription message, that is, the CSG ID subscription corresponding to the currently connected home base station of the connected state fails, and the CSG membership of the user changes (from the CSG subscription user).
  • the subscriber is a non-CSG subscriber, the MME needs to initiate a local access PDN connection release procedure.
  • the MME initiates release of all local access PDN connections that have been activated. If the user subscribes to the Wildcard APN, the MME initiates the release of the local access PDN connection corresponding to the APN bound to the CSG in the session management context, and the local access PDN connection corresponding to the APN that is not bound to the CSG in the session management context is not # Text processing.
  • Step 802 The MME inserts a user data response message into the HSS response.
  • Steps 803 to 810 are the same as steps 702 to 709 of the application example 1, and are not described here.
  • Application example 3
  • FIG. 9 is a flowchart of an application example 3 of the present invention.
  • the EPC network is taken as an example to describe a method for processing a local access connection when a user locally accesses subscription data changes, as follows:
  • a description of a local access connection processing method is performed by taking a user CSG subscription timeout saved in the core network mobility management unit MME as an example.
  • Step 901 The core network mobility management unit MME saves the subscription information of the CSG of the user. If the user is in the connected state and accesses the network through the hybrid mode home base station, the MME detects that the CSG ID corresponding to the home base station times out and causes the CSG member of the user. When the relationship is changed (from the CSG subscription user to the non-CSG subscription user), the MME needs to instruct the HeNB to trigger the local gateway L-GW to initiate local access PDN connection release;
  • the MME instructs the home base station to touch The local gateway initiates the release of all locally accessed PDN connections that have been activated. If the user subscribes to the Wildcard APN, the MME instructs the home base station to trigger the release of the local access PDN connection corresponding to the APN bound to the CSG in the session management context of the local gateway, and the APN that is not bound to the CSG in the session management context. Local access to the PDN connection is not processed.
  • Step 902 The MME sends a user CSG membership or a local access connection deactivation indication to the HeNB by using an evolved radio access bearer (E-RAB) modification request message in the S1 interface message.
  • E-RAB evolved radio access bearer
  • the modification parameters of the radio bearers corresponding to all the local access PDN connections carry the user CSG membership or the local access connection. Deactivate the indication. If the MME needs to instruct the home base station to trigger the local gateway to initiate the PDN connection release corresponding to the APN bound to the CSG in the session management context, the modification of the radio bearer corresponding to the local access PDN connection corresponding to the APN with the binding relationship
  • the parameter carries the user CSG membership or the local access connection deactivation indication.
  • the HeNB may find a corresponding local access connection and an L-GW serving the same according to the radio bearer carrying the indication, and trigger the L-GW to initiate a local access PDN connection release.
  • the MME uses the user CSG membership relationship parameter to indicate that the HeNB triggers the L-GW to initiate a local access PDN connection release
  • the HeNB needs to compare it with the previous CSG membership relationship. If the user is found to change from the CSG member to the non-CSG member, the L is triggered. - The GW initiates the release of the local access PDN connection corresponding to the radio bearer.
  • the HeNB triggers the L-GW to initiate the local access PDN connection release corresponding to the radio bearer after receiving the local access connection deactivation parameter indication.
  • Step 903 The HeNB responds to the MME with the evolved radio access bearer modification response message.
  • Step 904 The HeNB, according to the determination of step 902, notifies the L-GW to initiate corresponding local access by using the Sxx interface or the internal interface between the HeNB and the L-GW.
  • the PDN connection is released, where the Sxx interface is an interface that has not been standardized;
  • Step 905 The L-GW returns a notification response message.
  • Steps 906-909 the L-GW initiates a local access PDN connection release process
  • Step 910-911 the local radio access corresponding to the PDN connection is released.
  • FIG. 10 is a flowchart of an application example 4 of the present invention.
  • the EPC network is taken as an example to describe a method for processing a local access connection when a user locally accesses subscription data changes, as follows:
  • the subscription data update causes the user CSG subscription saved in the core network mobility management unit MME to be invalid as an example to perform a local access connection processing method.
  • Step 1001 The user CSG subscription data is updated in the HSS, and the HSS sends an insert user data request message to the MME, where the updated CSG subscription information is carried;
  • the MME When the MME discovers that the current CSG membership of the user changes according to the new CSG subscription message, that is, the CSG ID subscription corresponding to the currently connected home base station of the connected state fails, and the CSG membership of the user changes (from the CSG subscription user).
  • the MME needs to instruct the HeNB to trigger the local gateway to initiate a local access PDN connection release.
  • the MME instructs the home base station to trigger the local gateway to initiate all local access PDN connection activations that have been activated. If the user subscribes to the Wildcard APN, the MME instructs the home base station to trigger the release of the local access PDN connection corresponding to the APN bound to the CSG in the session management context of the local gateway, and the APN that is not bound to the CSG in the session management context. Local access to the PDN connection is not processed.
  • Step 1002 The MME inserts a user data response message into the HSS response.
  • Step 1003 The MME sends a new CSG membership relationship or a local access connection deactivation indication to the HeNB by using the evolved radio access bearer modification request message in the S1 interface message. According to the determination of step 1001, if the MME needs to indicate that the home base station triggers The local gateway initiates all the activated local access PDN connection release, and the user CSG membership relationship or the local access connection deactivation indication is carried in the modification parameter of the radio bearer corresponding to the PDN connection.
  • the modification of the radio bearer corresponding to the local access PDN connection corresponding to the APN bound to the CSG Carry the user in the parameter CSG membership or local access connection deactivation indication.
  • the HeNB may find a corresponding local access connection and an L-GW serving the same according to the radio bearer carrying the indication, and trigger the L-GW to initiate a local access PDN connection release.
  • the MME uses the user CSG membership relationship parameter to indicate that the HeNB triggers the L-GW to initiate a local access PDN connection release
  • the HeNB needs to compare it with the previous CSG membership relationship. If the user is found to change from the CSG member to the non-CSG member, the L is triggered. - The GW initiates the release of the local access PDN connection corresponding to the radio bearer.
  • the HeNB triggers the L-GW to initiate the local access PDN connection release corresponding to the radio bearer after receiving the local access connection deactivation parameter indication.
  • Step 1004 The HeNB responds to the MME with the evolved radio access bearer modification response message.
  • Step 1005 The HeNB, according to the determination of step 1003, notifies the L-GW to initiate corresponding local access by using the Sxx interface or the internal interface between the HeNB and the L-GW. The PDN connection is released.
  • the Sxx interface is an interface that has not been standardized;
  • Step 1006 The L-GW returns a notification response message.
  • Step 1007-1010 the L-GW initiates a local access PDN connection release process
  • Steps 1011-1012 Local access to the radio bearer corresponding to the PDN connection is released.
  • FIG. 11 is a flowchart of an application example 5 of the present invention.
  • the GPRS network is taken as an example to describe a method for processing a local access connection when a user locally accesses subscription data changes, as follows:
  • a description of the local access connection processing method is performed by taking the user CSG subscription timeout stored in the core network mobility management unit Gn/Gp SGSN (indicating the SGSN supporting the Gn or Gp interface) as an example.
  • Step 1101 The core network mobility management unit Gn/Gp SGSN saves the subscription information of the CSG of the user. If the user is in the connected state and accesses the network through the hybrid mode home base station, when the Gn/Gp SGSN detects the CSG ID corresponding to the home base station. The timeout caused the user's CSG membership to occur. When changing (from a CSG subscription user to a non-CSG subscription user), the SGSN needs to initiate a local access PDN connection deactivation process;
  • the SGSN initiates activation of all local access PDN connections that have been activated. If the user subscribes to the Wildcard APN, the SGSN initiates a local access PDN connection corresponding to the APN bound to the CSG in the session management context, and the local access PDN connection corresponding to the APN that is not bound to the CSG in the session management context is not Do the processing.
  • Step 1102 The Gn/Gp SGSN sends the new CSG membership (from the CSG subscription user to the non-CSG subscription user) to the HNB through the HNB GW through the Iu interface Common ID (Universal Identity) message, so that the HNB uses the new CSG.
  • the member relationship performs air interface resource allocation.
  • Step 1103 The Gn/Gp SGSN initiates a local access connection deactivation process based on the judgment result of step 1101, and the Gn/Gp SGSN sends a PDP context deactivation request message to the L-GGSN. Step 1104, L-GGSN Replying to the PDP context to deactivate the response message;
  • steps 1105-1106 the radio bearer corresponding to the local access connection is released.
  • FIG. 12 is a flowchart of an application example 6 of the present invention.
  • the GPRS network is taken as an example to describe a method for processing a local access connection when a user locally accesses subscription data changes, as follows:
  • the subscription data update causes the CSG subscription of the user saved in the core network mobility management unit Gn/Gp SGSN to be invalidated as an example for performing the local access connection processing method.
  • Step 1201 The user CSG subscribes to the update in the HLR, and the HLR sends an insert user data request message to the Gn/Gp SGSN, where the updated CSG subscription information is carried.
  • the Gn/Gp SGSN needs to initiate a local access connection when the current CSG membership relationship changes according to the new CSG subscription message, that is, when the connected state user currently accesses the CSG ID subscription failure corresponding to the home base station. Deactivate the process.
  • the Gn/Gp SGSN initiates activation of all locally accessed PDN connections that have been activated. If the user subscribes to the Wildcard APN, the MME initiates a local access PDN connection corresponding to the APN bound to the CSG in the session management context. After the activation, the local access PDN connection corresponding to the APN that is not bound to the CSG in the session management context is not processed.
  • Step 1202 The Gn/Gp SGSN inserts a user data response message into the HLR response.
  • Steps 1203 to 1207 are the same as steps 1102 to 1106 of the application example 5, and are not described herein.
  • FIG. 13 is a flowchart of an application example 7 of the present invention.
  • the GPRS network is used as an example to describe a method for processing a local access connection when a user local access subscription data changes, as follows:
  • the timeout is an example of a local access connection processing method.
  • Step 1301 The core network mobility management unit Gn/Gp SGSN saves the subscription information of the CSG of the user. If the user is in the connected state and accesses the network through the hybrid mode home base station, the Gn/Gp SGSN detects the CSG ID corresponding to the home base station. When the timeout causes the CSG membership of the user to change (from the CSG subscription user to the non-CSG subscription user), the Gn/Gp SGSN needs to instruct the HNB to trigger the local gateway to initiate a local access PDN connection deactivation;
  • the Gn/Gp SGSN instructs the home base station to trigger the local gateway to initiate activation of all locally accessed PDN connections. If the user subscribes to the Wildcard APN, the Gn/Gp SGSN instructs the home base station to trigger the local gateway to initiate activation of the local access PDN connection corresponding to the APN bound to the CSG in the session management context, and is not bound to the CSG in the session management context. The local access PDN connection corresponding to the APN is not processed.
  • Step 1302 The Gn/Gp SGSN sends the user CSG membership or the local access connection deactivation indication to the HNB through the HNB GW through the radio access bearer (RAB) modification request message in the Iu interface message.
  • RAB radio access bearer
  • step 1301 if the Gn/Gp SGSN needs to instruct the home base station to trigger the local gateway to initiate all activated local access PDN connection release, the modification parameter of the radio bearer corresponding to all local access PDN connections carries the user CSG membership relationship or The local access connection deactivates the indication. If the Gn/Gp SGSN needs to instruct the home base station to trigger the local gateway to initiate a session The local access PDN connection corresponding to the APN bound to the CSG in the management context is released, and the CSG membership relationship or the local access connection is carried in the modification parameter of the radio bearer corresponding to the local access PDN connection corresponding to the APN bound to the CSG. Deactivate the indication.
  • the HNB can find the corresponding local access connection and the L-GGSN serving the radio bearer according to the above-mentioned radio bearer carrying the indication, and trigger the L-GGSN to initiate a local access PDN connection to be activated.
  • the HNB needs to compare it with the previous CSG membership relationship, and if the user is found to change from a CSG member to a non-CSG member. , triggering the L-GGSN to initiate a local access PDN connection corresponding to the radio bearer to be deactivated.
  • the Gn/Gp SGSN uses the local access connection deactivation parameter to indicate that the HNB triggers the L-GGSN to initiate a local access PDN connection deactivation
  • the HNB triggers the L-GGSN to initiate the local bearer corresponding to the radio bearer after receiving the local access connection deactivation parameter indication. Access the PDN connection to activate.
  • Step 1303 The HNB responds to the radio access bearer modification response message.
  • Step 1304 the HNB determines, according to the determination in step 1302, between the HNB and the L-GGSN.
  • the Sxx interface or the internal interface notifies the L-GGSN to initiate a corresponding local access PDN connection release, wherein the Sxx interface is an interface that has not been standardized;
  • Step 1305 the L-GGSN replies to the notification response message
  • Step 1306-1307 the L-GGSN initiates a PDP context deactivation process
  • Step 1308-1309 the local radio access corresponding to the PDN connection is released.
  • FIG. 14 is a flowchart of an application example 8 of the present invention.
  • the GPRS network is taken as an example to describe a method for processing a local access connection when a local access subscription data changes, as follows:
  • the subscription data update causes the CSG subscription of the user saved in the core network mobility management unit Gn/Gp SGSN to be invalidated as an example for performing the local access connection processing method.
  • Step 1401 The user CSG subscription data is updated in the HLR, and the HLR sends an insert user data request message to the Gn/Gp SGSN, where the updated CSG subscription information is carried.
  • the Gn/Gp SGSN instructs the HNB to trigger the local gateway when the current CSG membership relationship changes according to the new CSG subscription message, that is, when the connected state user currently accesses the CSG ID subscription failure corresponding to the home base station. Initiate a local access PDN connection to deactivate.
  • the Gn/Gp SGSN instructs the home base station to trigger the local gateway to initiate activation of all locally accessed PDN connections. If the user subscribes to the Wildcard APN, the Gn/Gp SGSN instructs the home base station to trigger the local gateway to initiate activation of the local access PDN connection corresponding to the APN bound to the CSG in the session management context, and is not bound to the CSG in the session management context. The local access PDN connection corresponding to the APN is not processed.
  • Step 1402 The Gn/Gp SGSN returns an Insert User Data Response message to the HLR.
  • Step 1403 The Gn/Gp SGSN deactivates the user CSG membership or the local access connection through the radio access bearer modification request message in the Iu interface message.
  • GW sends to HNB;
  • step 1401 if the Gn/Gp SGSN needs to instruct the home base station to trigger the local gateway to initiate all activated local access PDN connection release, the modification parameters of the radio bearers corresponding to all local access PDN connections carry the user CSG membership relationship or The local access connection deactivates the indication. If the Gn/Gp SGSN needs to indicate that the home base station triggers the local gateway to initiate the local access PDN connection release corresponding to the APN bound to the CSG in the session management context, the local access PDN connection corresponding to the APN bound to the CSG is wireless.
  • the modified parameters of the bearer carry the user CSG membership or the local access connection deactivation indication.
  • the HNB can find the corresponding local access connection and the L-GGSN serving the radio bearer according to the above-mentioned radio bearer carrying the indication, and trigger the L-GGSN to initiate a local access PDN connection to be activated.
  • the HNB needs to compare it with the previous CSG membership relationship, and if the user is found to change from a CSG member to a non-CSG member. , triggering the L-GGSN to initiate a local access PDN connection corresponding to the radio bearer to be deactivated. If the Gn/Gp SGSN uses the local access connection deactivation parameter to indicate that the HNB triggers the L-GGSN to initiate a local access PDN connection deactivation, the HNB triggers the L-GGSN to initiate the local bearer corresponding to the radio bearer after receiving the local access connection deactivation parameter indication. Access the PDN connection to activate.
  • Step 1404 The HNB responds to the radio access bearer modification response message.
  • Step 1405 the HNB passes the HNB and the L-GGSN according to the determination of step 1403.
  • the Sxx interface or the internal interface notifies the L-GGSN to initiate a corresponding local access PDN connection release, wherein the Sxx interface is an interface that has not been standardized;
  • Step 1406 The L-GGSN replies to the notification response message.
  • Step 1407-1408 the L-GGSN initiates a PDP context deactivation process
  • Steps 1409 - 1410 the local access PDN connection corresponding radio bearer is released.
  • the local access PDN connection process in the case of the EPC network S4 SGSN is the same as the first embodiment to the fourth embodiment, except that the message used by the Iu interface is different (the same as the fifth to eighth embodiments), and details are not described herein. Should be equally covered.
  • the network side can release the local access connection to avoid unnecessary resource waste.

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Abstract

一种本地访问连接的处理方法，包括：用户终端处于连接状态且通过混合模式家庭基站接入时，如果核心网移动性管理单元检测到该用户终端的闭合用户组（CSG）成员关系发生了改变或者超时（401），核心网移动性管理单元发起已激活的所有本地访问分组数据网络（PDN）连接释放，或者通知家庭基站触发本地网关发起已激活的所有本地访问PDN连接释放（402）。

Description

一种本地访问连接的处理方法和装置
技术领域
本发明涉及移动通信领域， 具体涉及本地访问功能（包括本地 IP接入、 选择性 IP传输分流 )使用情况下的本地访问连接处理方法和装置。
背景技术
为了保持第三代移动通信***在通信领域的竟争力， 为用户提供速率更 快、 时延更低、 以及更加个性化的移动通信服务， 同时， 降低运营商的运营 标准工作组正致力于演进分组***（ Evolved Packet System, 简称 EPS )的研 究。 图 1示出了演进分组域***的结构示意图， 如图 1所示， 整个 EPS*** 分为无线接入网和核心网两部分。在核心网中，包含了归属用户服务器（ Home Subscriber Server,简称为 HSS )、移动性管理实体（ Mobility Management Entity, 简称为 MME )、 服务 GPRS支持节点（ Serving GPRS Support Node, 简称为 SGSN )、策略计费规则功能（ Policy and Charging Rule Function,简称为 PCRF )、 服务网关（ Serving Gateway,简称为 S-GW )、分组数据网关（ PDN Gateway, 简称为 P-GW )和分组数据网络（Packet Data Network, 简称 PDN ) 。 下面 详细描述各部分功能：
归属用户服务器， 是用户签约数据的永久存放地点， 位于用户签约的归 属网。
移动性管理实体， 是用户签约数据在当前网络的存放地点， 负责终端到 网络的非接入层信令管理、 终端的安全验证功能、 终端的移动性管理、 用户 空闲模式下的跟踪和寻呼管理功能和承载管理。
服务 GPRS支持节点， 是全球移动通讯***（Global System for Mobile
Communications, 简称为 GSM )增强数据率 GSM演进（ Enhanced Data Rate for GSM Evolution, 简称为 EDGE )无线接入网 ( GSM EDGE Radio Access Network , 简称为 GERAN ) 和通用移动通信*** （ Universal Mobile Telecommunications System , 简称为 UMTS ) 陆地无线接入网 （UMTS Terrestrial Radio Access Network, 简称为 UTRAN )用户接入核心网络的业务 支持点， 功能上与移动性管理实体类似， 负责用户的位置更新、 寻呼管理和 承载管理等功能。
服务网关， 是核心网到无线***的网关， 负责终端到核心网的用户面承 载、 终端空闲模式下的数据緩存、 网络侧发起业务请求的功能、 合法监听和 分组数据路由和转发功能； 服务网关负责统计用户终端使用无线网的情况， 并产生终端使用无线网的话单， 传送给计费网关。
分组数据网关， 是演进***和该***外部分组数据网络的网关， 它连接 到因特网和分组数据网络上， 负责终端的互联网协议（ Internet Protocol , 简 称为 IP )地址分配、 计费功能、 分组包过滤、 以及策略控制等功能。
分组数据网络，是运营商的 IP业务网络， 该网络通过运营商的核心网为 用户提供 IP服务。
策略计费规则功能实体， 是演进***中负责提供计费控制、 在线信用控 制、 门限控制、 以及服务质量（Quality of Service, 简称为 QoS )策略方面规 则的服务器。
无线接入网， 是由演进基站（ Evolved NodeB, 简称为 eNB )和 3G无线 网络控制器（ Radio Network Controller, 简称为 RNC )组成， 它主要负责无 线信号的收发， 通过空中接口和终端联系， 管理空中接口的无线资源、 资源 调度、 以及接入控制。
上述服务 GPRS支持节点是升级过的 SGSN, 能够支持与服务网关之间 的 S4接口，并与移动性管理实体 MME之间釆用 GPRS隧道协议版本 2( GPRS Tunneling Protocol version 2, 简称为 GTPv2 )进行互通。 而对于支持 3G核 心网的 SGSN来说分组交换（Packet Switching, 简称为 PS )域网络架构与图 1有所不同。此时 SGSN与 MME釆用 Gn接口相连， 互通釆用 GPRS隧道协 议版本 1 ( GPRS Tunneling Protocol version 1 , 简称为 GTPvl ) 。 SGSN不能 与服务网关相连， 通过 Gn接口连接到网关 GPRS支持节点 （ Gateway GPRS Support Node, 简称为 GGSN )直接进行分组数据网络访问。
家庭基站 （Home NodeB , 简称为 HNB )或者演进的家庭基站（Home eNodeB, 简称为 HeNB )是一类小型、 低功率的基站， 作为某些用户的专属 资源， 部署在家庭、 团体、 公司或者学校等私人场所使用， 主要是为了给用 户提供更高的业务速率并降低使用高速率服务所需要的费用， 同时弥补已有 分布式蜂窝无线通信***覆盖的不足。 家庭基站的优点是实惠、 便捷、 低功 率输出、 即插即用、 宽带接入、 以及使用单模终端等。
家庭基站可以直接连接到核心网络，如图 2a所示，也可以通过家庭基站 网关这个逻辑网元接入到核心网络， 如图 2b所示， 其中， 家庭基站网关主要 功能为： 验证家庭基站的安全性， 处理家庭基站的注册， 对家庭基站进行运 行维护管理， 根据运营商要求配置和控制家庭基站， 负责交换核心网和家庭 基站的数据。 或者选择性 IP传输分流（Selected IP Traffic Offload, 简称为 SIPTO ) ) , 即 终端对家用网络其他 IP设备、 企业网络中的 IP设备或者互联网络的本地接 入， 增设了本地网关， 如图 3所示。 本地接入网关的增设可提供对本地访问 技术的有力支持 ,本地网关可以和无线侧网元合设或者在无线侧网元附近（即 外置） 。 本地网关包括本地 PGW ( Local Gateway, 简称为 L-GW ) 、 本地 GGSN ( Local GGSN, 简称为 L-GGSN ) ,具有部分 PGW和 GGSN的功能。
在移动通信网络架构中， 本地访问和传统核心网访问的数据流路径如图 3 所示。 对于支持本地访问的用户， 可以同时建立传统的核心网访问数据路 径和本地访问数据路径。 对于本地访问的连接， 本地访问数据路径从终端至 无线侧网元至本地接入网关（如： L-PGW以及 L-GGSN ) , 进而访问本地网 络资源，数据传输不经过核心网。 为了实现终端对家用网络其他 IP设备或者 互联网络的本地接入， 可以建立两条连接， 第一条本地访问数据路径直接访 问互联网 （互联网 IP连接， 也即 SIPTO连接） 。 第二条本地访问数据路径 直接访问家用网络其他 IP设备（家用网络 IP连接， 也即 LIPA连接 ) 。
家庭或者企业网络中 IP设备所构成的本地网络资源仅为授权访问本地 网络的用户所使用， 这类用户在 HSS中保存有本地访问签约信息。 用户处于 连接状态时， 如果本地访问签约信息发生了动态变化， 网络如何对已激活的 本地访问连接进行处理尚未明确。 发明内容
本发明所要解决的技术问题是一种本地访问连接的处理方法和装置， 在 本地访问签约信息发生变化时提供了本地访问连接的处理方案。
为解决上述技术问题， 本发明提供了一种本地访问连接的处理方法， 包 括：
用户终端处于连接状态且通过混合模式家庭基站接入时， 如果核心网移 动性管理单元检测到该用户终端的闭合用户组（CSG )成员关系发生了改变 或者超时，核心网移动性管理单元发起受影响的本地访问分组数据网络（ PDN ) 连接释放，或者通知家庭基站触发本地网关发起受影响的本地访问 PDN连接 释放。
优选地， 用户终端的 CSG成员关系发生改变或者超时， 包括： 该用户终 端从 CSG签约用户变为非 CSG签约用户。
优选地， 所述释放的本地访问 PDN连接， 包括： 已激活的所有本地访问 PDN连接， 或者与 CSG绑定的接入点名 （ APN )所对应的本地访问 PDN连 接。
优选地， 所述核心网移动性管理单元通知家庭基站触发本地网关发起本 地访问 PDN连接释放， 包括：
所述移动性管理单元通过 S1消息或 Iu接口消息中的指示通知家庭基站 触发本地网关发起本地访问 PDN连接释放。
优选地， 所述 S1 消息包括： 演进的无线接入承载修改请求消息； 所述
Iu接口消息包括： 无线接入承载修改请求消息。
优选地， 所述指示包括： 用户终端当前的 CSG成员关系信息；
家庭基站收到所述指示后，通过比较判断如果该用户终端的 CSG成员关 系发生了改变， 则触发本地网关发起本地访问 PDN连接释放。
优选地， 所述指示包括： 本地访问去激活指示； 家庭基站收到所述指示 后， 直接触发本地网关发起本地访问 PDN连接释放。
为解决上述技术问题， 本发明还提供了一种本地访问连接的处理装置， 包括检测模块和分组数据网络（PDN )连接释放模块， 包括： 所述检测模块， 设置为： 在用户终端处于连接状态且通过混合模式家庭 基站接入时， 检测到该用户终端的闭合用户组（CSG )成员关系是否发生改 变或者超时；
所述 PDN连接释放模块，设置为： 在所述检测模块检测到该用户终端的 CSG成员关系发生改变或者超时时，发起受影响的本地访问 PDN连接释放， 或者通知家庭基站触发本地网关发起受影响的本地访问 PDN连接释放。
优选地， 所述用户终端的 CSG成员关系发生改变或者超时， 包括： 该用 优选地， 所述释放的本地访问 PDN连接， 包括： 已激活的所有本地访问 PDN连接， 或者与 CSG绑定的 APN所对应的本地访问 PDN连接。
优选地，所述 PDN连接释放模块是设置为： 釆用以下方式通知家庭基站 触发本地网关发起本地访问 PDN连接释放： PDN连接释放模块通过 S1消息 或 Iu接口消息中的指示通知家庭基站触发本地网关发起本地访问 PDN连接 释放。
优选地， 所述 S1 消息包括： 演进的无线接入承载修改请求消息； 所述
Iu接口消息包括： 无线接入承载修改请求消息。
优选地，所述指示包括： 用户终端的 CSG成员关系信息或本地访问去激 活指示。
釆用本发明实施例方法和装置， 当本地访问签约信息发生动态变化， 特 别是用户终端从 CSG签约用户变为非 CSG签约用户时， 使网络侧可以释放 本地访问连接， 避免不必要的资源浪费。 附图概述
附图说明用来提供对本发明的进一步理解， 并且构成说明书的一部分， 与本发明的实施例一起用于解释本发明， 并不构成对本发明的限制。 在附图 中：
图 1为演进分组域***的结构示意图；
图 2a、 2b为家庭基站接入核心网示意图； 图 3为本地访问和传统核心网访问的数据流路径示意图； 图 4为本发明实施例 1流程图；
图 5为本发明实施例 2流程图；
图 6为本发明实施例 3装置结构示意图；
图 7为本发明应用示例 1流程图；
图 8为本发明应用示例 2流程图；
图 9为本发明应用示例 3流程图；
图 10为本发明应用示例 4流程图；
图 11为本发明应用示例 5流程图；
图 12为本发明应用示例 6流程图；
图 13为本发明应用示例 7流程图；
图 14为本发明应用示例 8流程图。 本发明的较佳实施方式
下文中将结合附图对本发明的实施例进行详细说明。 需要说明的是， 在 不冲突的情况下， 本申请中的实施例及实施例中的特征可以相互任意组合。
实施例 1 图 4所示， 包括以下步骤：
步骤 401 , 用户处于连接状态且通过混合模式家庭基站接入时， 如果核 心网移动性管理单元检测到用户的 CSG (闭合用户组）成员关系发生了改变 或者超时 （例如， 从 CSG签约用户变为非 CSG签约用户） ；
上述核心网移动性管理单元在 EPC网络中为 MME, 在 GPRS网络中为 SGSN (包括支持 Gn接口的 SGSN、支持 Gp接口的 SGSN或支持 S4接口的 SGSN ) 。
本文所述用户是指用户设备， 或称用户终端。 步骤 402,核心网移动性管理单元发起已激活的所有本地访问 PDN连接 释放或通知家庭基站触发本地网关发起已激活的所有本地访问 PDN连接释 放。
移动性管理单元通过 S1消息或 Iu接口消息中的指示通知家庭基站触发 本地网关发起已激活的所有本地访问 PDN连接释放。当家庭基站收到上述触 发指示后可通过 Sxx接口或者内部接口通知本地网关发起已激活的所有本地 访问 PDN连接释放。 其中， S1消息 （例如 E-RAB修改消息）或 Iu接口消 息 （例如 RAB修改消息） 中的指示可以是用户 CSG成员关系或者本地访问 去激活指示。
如果家庭基站收到的是用户 CSG成员关系， 那么通过比较先前的 CSG 成员关系发现用户的 CSG成员关系从 CSG签约用户变成非 CSG签约用户， 则家庭基站触发本地网关发起本地访问 PDN连接释放。
如果家庭基站收到本地访问去激活指示， 那么家庭基站直接触发本地网 关发起本地访问 PDN连接释放。
实施例 2
本实施例应用于用户签约 wild card APN的场景，如图 5所示， 包括以下 步骤：
步骤 501 , 用户处于连接状态且通过混合模式家庭基站接入时， 当核心 网移动性管理单元检测到用户的 CSG成员关系发生了改变或者超时（例如， 从 CSG签约用户变为非 CSG签约用户） ；
上述核心网移动性管理单元在 EPC网络中为 MME, 在 GPRS网络中为 SGSN (包括支持 Gn接口的 SGSN、支持 Gp接口的 SGSN或支持 S4接口的 SGSN ) 。
步骤 502 , 核心网移动性管理单元发起与 CSG绑定的 APN所对应的本 地访问 PDN连接释放或通知家庭基站触发本地网关发起与 CSG绑定的 APN 所对应的本地访问 PDN连接释放。
本实施例与实施例 1的区别在于： 由于用户签约了 wild card APN, 故在 释放 PDN连接时， 释放的是与 CSG绑定的 APN所对应的本地访问 APN连 接， 而不是所有 APN连接。
移动性管理单元通过 S1消息或 Iu接口消息中的指示通知家庭基站触发 本地网关发起与 CSG绑定的 APN所对应的本地访问 PDN连接释放。当家庭 基站收到上述触发指示后可通过 Sxx接口或者内部接口通知本地网关发起有 APN签约的本地访问 PDN连接释放。 其中， S1消息 （例如 E-RAB承载修 改消息）或 Iu接口消息（例如 RAB承载修改消息）中的指示可以是用户 CSG 成员关系或者本地访问去激活指示。
如果家庭基站收到的是用户 CSG成员关系， 那么通过比较先前的 CSG 成员关系发现用户的 CSG成员关系从 CSG签约用户变成非 CSG签约用户， 则家庭基站触发本地网关发起本地访问 PDN连接释放。
如果家庭基站收到本地访问去激活指示， 那么家庭基站直接触发本地网 关发起本地访问 PDN连接释放。
实施例 3
本实施例描述实现上述方法的装置，如图 6所示，包括：检测模块和 PDN 连接释放模块， 包括：
该检测模块， 用于在用户终端处于连接状态且通过混合模式家庭基站接 入时， 检测到该用户终端的 CSG成员关系是否发生改变或者超时；
该 PDN连接释放模块， 用于在所述检测模块检测到该用户终端的 CSG 成员关系发生改变或者超时时，发起本地访问 PDN连接释放，或者通知家庭 基站触发本地网关发起本地访问 PDN连接释放。
上述释放的本地访问 PDN连接 , 包括： 已激活的所有本地访问 PDN连 接， 或者与 CSG绑定的 APN所对应的本地访问 PDN连接。
优选地，该 PDN连接释放模块是用于釆用以下方式通知家庭基站触发本 地网关发起本地访问 PDN连接释放： 通过 S1消息（例如演进的无线接入承 载修改请求消息）或 Iu接口消息（例如无线接入承载修改请求消息）中的指 示通知家庭基站触发本地网关发起本地访问 PDN连接释放。 上述指示包括： 用户终端的 CSG成员关系信息或本地访问去激活指示。
下面以若干应用示例具体说明本发明方法。 应用示例 1
图 7为本发明应用示例 1流程图， 以 EPC网络为例，描述用户本地访问 签约数据变化时本地访问连接的处理方法， 具体如下：
本实施例以核心网移动性管理单元 MME中保存的用户 CSG (闭合用户 组 )签约超时为例进行本地访问连接处理方法的说明。
步骤 701 , 核心网移动性管理单元 MME中保存用户的 CSG签约信息， 若用户处于连接状态且通过混合模式家庭基站接入网络， 当 MME检测到家 庭基站对应的 CSG ID超时导致用户的 CSG成员关系发生了改变 （从 CSG 签约用户变为非 CSG签约用户） 时， MME需要发起本地访问 PDN连接释 放；
具体地，如果用户没有签约 Wildcard APN (通配接入点名），那么 MME 发起已激活的所有本地访问 PDN连接释放。如果用户签约了 Wildcard APN, 那么 MME发起会话管理上下文中与 CSG绑定的 APN所对应的本地访问 PDN连接释放，对于会话管理上下文中没有与 CSG绑定的 APN所对应的本 地访问 PDN连接不 #丈处理。
每个 CSG签约信息都包括用户使用该 CSG ID的超时时间， 当用户签约 的某个 CSG ID超时时间到期，那么表明用户对该 CSG ID的签约失效，则用 户在该 CSG的成员关系从 CSG签约用户变为非 CSG签约用户。
步骤 702, MME通过 S1接口应用协议中的（以下简称 SI AP ) UE上下 文修改请求消息将用户新的 CSG成员关系（从 CSG签约用户变为非 CSG签 约用户）发送给 HeNB, HeNB使用新的 CSG成员关系执行空口资源分配； 步骤 703 , HeNB响应 SI AP UE上下文修改响应消息；
步骤 704, MME基于步骤 701的判断结果发起本地访问 PDN连接删除 过程；
步骤 705-706 , S-GW和 L-GW中本地访问连接对应的用户面隧道释放； 步骤 707 , S-GW向 MME发送会话删除响应消息；
步骤 708-709 , 本地访问连接对应的空口承载释放。
应用示例 2 图 8为本发明应用示例 2流程图， 以 EPC网络为例，描述用户本地访问 签约数据变化时本地访问连接的处理方法， 具体如下：
本实施例以签约数据更新导致核心网移动性管理单元 MME中保存的用 户 CSG签约失效为例进行本地访问连接处理方法的说明。
步骤 801 , HSS中用户 CSG签约数据更新， HSS向 MME发送***用户 数据请求消息， 其中携带更新后的 CSG签约信息；
MME根据新的 CSG签约消息发现用户当前的 CSG成员关系发生变化 时， 也即连接态用户当前接入家庭基站所对应的 CSG ID签约失效导致用户 的 CSG成员关系发生了改变 （从 CSG签约用户变为非 CSG签约用户） 时， MME需要发起本地访问 PDN连接释放过程。
具体地， 如果用户没有签约 Wildcard APN, 那么 MME发起已激活的所 有本地访问 PDN连接释放。 如果用户签约了 Wildcard APN, 那么 MME发 起会话管理上下文中与 CSG绑定的 APN所对应的本地访问 PDN连接释放， 对于会话管理上下文中没有与 CSG绑定的 APN所对应的本地访问 PDN连接 不#文处理。
步骤 802, MME向 HSS响应***用户数据响应消息；
步骤 803〜步骤 810同应用示例 1的步骤 702〜步骤 709 , 此处不做赘述。 应用示例 3
图 9为本发明应用示例 3流程图， 以 EPC网络为例，描述用户本地访问 签约数据变化时本地访问连接的处理方法， 具体如下：
本实施例以核心网移动性管理单元 MME中保存的用户 CSG签约超时为 例进行本地访问连接处理方法的说明。
步骤 901 ,核心网移动性管理单元 MME中保存用户的 CSG的签约信息， 若用户处于连接状态且通过混合模式家庭基站接入网络， 当 MME检测到家 庭基站对应的 CSG ID超时导致用户的 CSG成员关系发生了改变 （从 CSG 签约用户变为非 CSG签约用户 ) 时， MME需要指示 HeNB触发本地网关 L-GW发起本地访问 PDN连接释放；
具体地， 如果用户没有签约 Wildcard APN, 那么 MME指示家庭基站触 发本地网关发起已激活的所有本地访问 PDN 连接释放。 如果用户签约了 Wildcard APN, 那么 MME指示家庭基站触发本地网关发起会话管理上下文 中与 CSG绑定的 APN所对应的本地访问 PDN连接释放，对于会话管理上下 文中没有与 CSG绑定的 APN所对应的本地访问 PDN连接不做处理。
步骤 902 , MME通过 S 1接口消息中的演进的无线接入承载 ( E-RAB ) 修改请求消息将用户 CSG 成员关系或者本地访问连接去激活指示发送给 HeNB;
根据步骤 901的判定， 如果 MME需要指示家庭基站触发本地网关发起 所有已激活的本地访问 PDN连接释放， 那么在所有本地访问 PDN连接对应 的无线承载的修改参数中携带用户 CSG成员关系或者本地访问连接去激活 指示。 如果 MME需要指示家庭基站触发本地网关发起会话管理上下文中与 CSG绑定的 APN所对应的本地访问 PDN连接释放， 那么在有绑定关系的 APN 所对应的本地访问 PDN连接对应的无线承载的修改参数中携带用户 CSG成员关系或者本地访问连接去激活指示。
HeNB可以根据上述携带指示的无线承载找到相应的本地访问连接及为 其服务的 L-GW, 触发 L-GW发起本地访问 PDN连接释放。
需要说明的是：
如果 MME使用用户 CSG成员关系参数指示 HeNB触发 L-GW发起本地 访问 PDN连接释放，那么 HeNB需要将其和以前的 CSG成员关系进行比较， 如果发现用户从 CSG成员变成非 CSG成员， 就触发 L-GW发起无线承载对 应的本地访问 PDN连接释放。
如果 MME使用本地访问连接去激活参数指示 HeNB触发 L-GW发起本 地访问 PDN连接释放， 那么 HeNB在收到本地访问连接去激活参数指示后 就触发 L-GW发起无线承载对应的本地访问 PDN连接释放。
步骤 903 , HeNB向 MME响应演进的无线接入承载修改响应消息； 步骤 904, HeNB基于步骤 902的判定，通过 HeNB与 L-GW之间的 Sxx 接口或者内部接口通知 L-GW发起相应的本地访问 PDN连接释放，其中 Sxx 接口为尚未标准化的接口； 步骤 905 , L-GW回复通知响应消息；
步骤 906-909, L-GW发起本地访问 PDN连接释放过程；
步骤 910-911 , 本地访问 PDN连接对应的无线承载释放。
应用示例 4
图 10为本发明应用示例 4流程图， 以 EPC网络为例， 描述用户本地访 问签约数据变化时本地访问连接的处理方法， 具体如下：
本实施例以签约数据更新导致核心网移动性管理单元 MME中保存的用 户 CSG签约失效为例进行本地访问连接处理方法的说明。
步骤 1001 , HSS中用户 CSG签约数据更新， HSS向 MME发送***用 户数据请求消息， 其中携带更新后的 CSG签约信息；
MME根据新的 CSG签约消息发现用户当前的 CSG成员关系发生变化 时， 也即连接态用户当前接入家庭基站所对应的 CSG ID签约失效导致用户 的 CSG成员关系发生了改变 （从 CSG签约用户变为非 CSG签约用户） 时， MME需要指示 HeNB触发本地网关发起本地访问 PDN连接释放。
具体地， 如果用户没有签约 Wildcard APN, 那么 MME指示家庭基站触 发本地网关发起已激活的所有本地访问 PDN 连接释放。 如果用户签约了 Wildcard APN, 那么 MME指示家庭基站触发本地网关发起会话管理上下文 中与 CSG绑定的 APN所对应的本地访问 PDN连接释放，对于会话管理上下 文中没有与 CSG绑定的 APN所对应的本地访问 PDN连接不做处理。
步骤 1002 , MME向 HSS响应***用户数据响应消息；
步骤 1003 , MME通过 S1接口消息中的演进的无线接入承载修改请求消 息将用户新的 CSG成员关系或者本地访问连接去激活指示发送给 HeNB; 根据步骤 1001的判定，如果 MME需要指示家庭基站触发本地网关发起 所有已激活的本地访问 PDN连接释放， 那么在所有本地访问 PDN连接对应 的无线承载的修改参数中携带用户 CSG成员关系或者本地访问连接去激活 指示。 如果 MME需要指示家庭基站触发本地网关发起会话管理上下文中与 CSG绑定的 APN所对应的本地访问 PDN连接释放， 那么在与 CSG绑定的 APN 所对应的本地访问 PDN连接对应的无线承载的修改参数中携带用户 CSG成员关系或者本地访问连接去激活指示。
HeNB可以根据上述携带指示的无线承载找到相应的本地访问连接及为 其服务的 L-GW, 触发 L-GW发起本地访问 PDN连接释放。
需要说明的是：
如果 MME使用用户 CSG成员关系参数指示 HeNB触发 L-GW发起本地 访问 PDN连接释放，那么 HeNB需要将其和以前的 CSG成员关系进行比较， 如果发现用户从 CSG成员变成非 CSG成员， 就触发 L-GW发起无线承载对 应的本地访问 PDN连接释放。
如果 MME使用本地访问连接去激活参数指示 HeNB触发 L-GW发起本 地访问 PDN连接释放， 那么 HeNB在收到本地访问连接去激活参数指示后 就触发 L-GW发起无线承载对应的本地访问 PDN连接释放。
步骤 1004 , HeNB向 MME响应演进的无线接入承载修改响应消息； 步骤 1005, HeNB基于步骤 1003的判定， 通过 HeNB与 L-GW之间的 Sxx接口或者内部接口通知 L-GW发起相应的本地访问 PDN连接释放。其中 Sxx接口为尚未标准化的接口；
步骤 1006 , L-GW回复通知响应消息；
步骤 1007-1010, L-GW发起本地访问 PDN连接释放过程；
步骤 1011-1012, 本地访问 PDN连接对应的无线承载释放。
应用示例 5
图 11为本发明应用示例 5流程图，以 GPRS网络为例，描述用户本地访 问签约数据变化时本地访问连接的处理方法， 具体如下：
本实施例以核心网移动性管理单元 Gn/Gp SGSN (表示支持 Gn或 Gp接 口的 SGSN )中保存的用户 CSG签约超时为例进行本地访问连接处理方法的 说明。
步骤 1101 , 核心网移动性管理单元 Gn/Gp SGSN中保存用户的 CSG的 签约信息，若用户处于连接状态且通过混合模式家庭基站接入网络，当 Gn/Gp SGSN检测到家庭基站对应的 CSG ID超时导致用户的 CSG成员关系发生了 改变 （从 CSG签约用户变为非 CSG签约用户） 时， SGSN需要发起本地访 问 PDN连接去激活过程；
具体地， 如果用户没有签约 Wildcard APN, 那么 SGSN发起已激活的所 有本地访问 PDN连接去激活。 如果用户签约了 Wildcard APN, 那么 SGSN 发起会话管理上下文中与 CSG绑定的 APN所对应的本地访问 PDN连接去激 活，对于会话管理上下文中没有与 CSG绑定的 APN所对应的本地访问 PDN 连接不做处理。
步骤 1102, Gn/Gp SGSN通过 Iu接口 Common ID (通用标识） 消息将 用户新的 CSG成员关系（从 CSG签约用户变为非 CSG签约用户）通过 HNB GW发送给 HNB, 以使 HNB使用新的 CSG成员关系执行空口资源分配； 步骤 1103 , Gn/Gp SGSN基于步骤 1101的判断结果发起本地访问连接 去激活过程， Gn/Gp SGSN向 L-GGSN发送 PDP上下文去激活请求消息； 步骤 1104, L-GGSN回复 PDP上下文去激活响应消息；
步骤 1105-1106, 本地访问连接对应的无线承载释放。
应用示例 6
图 12为本发明应用示例 6流程图， 以 GPRS网络为例，描述用户本地访 问签约数据变化时本地访问连接的处理方法， 具体如下：
本实施例以签约数据更新导致核心网移动性管理单元 Gn/Gp SGSN中保 存的用户 CSG签约失效为例进行本地访问连接处理方法的说明。
步骤 1201 , HLR中用户 CSG签约更新， HLR向 Gn/Gp SGSN发送*** 用户数据请求消息， 其中携带更新后的 CSG签约信息；
Gn/Gp SGSN根据新的 CSG签约消息发现用户当前的 CSG成员关系发 生变化时， 也即连接态用户当前接入家庭基站所对应的 CSG ID签约失效导 时， Gn/Gp SGSN需要发起本地访问连接去激活过程。
具体地， 如果用户没有签约 Wildcard APN, 那么 Gn/Gp SGSN发起已激 活的所有本地访问 PDN连接去激活。 如果用户签约了 Wildcard APN, 那么 MME发起会话管理上下文中与 CSG绑定的 APN所对应的本地访问 PDN连 接去激活， 对于会话管理上下文中没有与 CSG绑定的 APN所对应的本地访 问 PDN连接不 #丈处理。
步骤 1202, Gn/Gp SGSN向 HLR响应***用户数据响应消息； 步骤 1203〜步骤 1207, 同应用示例 5的步骤 1102〜步骤 1106, 此处不做 赘述。
应用示例 7
图 13为本发明应用示例 7流程图， 以 GPRS网络为例，描述用户本地访 问签约数据变化时本地访问连接的处理方法， 具体如下： 超时为例进行本地访问连接处理方法的说明。
步骤 1301 , 核心网移动性管理单元 Gn/Gp SGSN中保存用户的 CSG的 签约信息，若用户处于连接状态且通过混合模式家庭基站接入网络，当 Gn/Gp SGSN检测到家庭基站对应的 CSG ID超时导致用户的 CSG成员关系发生了 改变 （从 CSG签约用户变为非 CSG签约用户 ) 时， Gn/Gp SGSN需要指示 HNB触发本地网关发起本地访问 PDN连接去激活；
具体地， 如果用户没有签约 Wildcard APN, 那么 Gn/Gp SGSN指示家庭 基站触发本地网关发起已激活的所有本地访问 PDN连接去激活。如果用户签 约了 Wildcard APN,那么 Gn/Gp SGSN指示家庭基站触发本地网关发起会话 管理上下文中与 CSG绑定的 APN所对应的本地访问 PDN连接去激活，对于 会话管理上下文中没有与 CSG绑定的 APN所对应的本地访问 PDN连接不做 处理。
步骤 1302, Gn/Gp SGSN通过 Iu接口消息中的无线接入承载（RAB )修 改请求消息将用户 CSG成员关系或者本地访问连接去激活指示通过 HNB GW发送给 HNB;
根据步骤 1301的判定， 如果 Gn/Gp SGSN需要指示家庭基站触发本地 网关发起所有已激活的本地访问 PDN连接释放， 那么在所有本地访问 PDN 连接对应的无线承载的修改参数中携带用户 CSG成员关系或者本地访问连 接去激活指示。 如果 Gn/Gp SGSN需要指示家庭基站触发本地网关发起会话 管理上下文中与 CSG绑定的 APN所对应的本地访问 PDN连接释放，那么在 与 CSG绑定的 APN所对应的本地访问 PDN连接对应的无线承载的修改参数 中携带用户 CSG成员关系或者本地访问连接去激活指示。
HNB 可以根据上述携带指示的无线承载找到相应的本地访问连接及为 其服务的 L-GGSN, 触发 L-GGSN发起本地访问 PDN连接去激活。
需要说明的是：
如果 Gn/Gp SGSN使用用户 CSG成员关系参数指示 HNB触发 L-GGSN 发起本地访问 PDN连接去激活， 那么 HNB需要将其和以前的 CSG成员关 系进行比较， 如果发现用户从 CSG成员变成非 CSG成员， 就触发 L-GGSN 发起无线承载对应的本地访问 PDN连接去激活。
如果 Gn/Gp SGSN使用本地访问连接去激活参数指示 HNB触发 L-GGSN 发起本地访问 PDN连接去激活， 那么 HNB在收到本地访问连接去激活参数 指示后就触发 L-GGSN发起无线承载对应的本地访问 PDN连接去激活。
步骤 1303 , HNB响应无线接入承载修改响应消息；
步骤 1304, HNB基于步骤 1302的判定， 通过 HNB与 L-GGSN之间的
Sxx接口或者内部接口通知 L-GGSN发起相应的本地访问 PDN连接释放，其 中 Sxx接口为尚未标准化的接口；
步骤 1305 , L-GGSN回复通知响应消息；
步骤 1306-1307, L-GGSN发起 PDP上下文去激活过程；
步骤 1308-1309, 本地访问 PDN连接对应的无线承载释放。
应用示例 8
图 14为本发明应用示例 8流程图， 以 GPRS网络为例，描述本地访问签 约数据变化时本地访问连接的处理方法， 具体如下：
本实施例以签约数据更新导致核心网移动性管理单元 Gn/Gp SGSN中保 存的用户 CSG签约失效为例进行本地访问连接处理方法的说明。
步骤 1401 , HLR中用户 CSG签约数据更新， HLR向 Gn/Gp SGSN发送 ***用户数据请求消息， 其中携带更新后的 CSG签约信息； Gn/Gp SGSN根据新的 CSG签约消息发现用户当前的 CSG成员关系发 生变化时， 也即连接态用户当前接入家庭基站所对应的 CSG ID签约失效导 时， Gn/Gp SGSN指示 HNB触发本地网关发起本地访问 PDN连接去激活。
具体地， 如果用户没有签约 Wildcard APN, 那么 Gn/Gp SGSN指示家庭 基站触发本地网关发起已激活的所有本地访问 PDN连接去激活。如果用户签 约了 Wildcard APN,那么 Gn/Gp SGSN指示家庭基站触发本地网关发起会话 管理上下文中与 CSG绑定的 APN所对应的本地访问 PDN连接去激活，对于 会话管理上下文中没有与 CSG绑定的 APN所对应的本地访问 PDN连接不做 处理。
步骤 1402, Gn/Gp SGSN向 HLR返回***用户数据响应消息； 步骤 1403 , Gn/Gp SGSN通过 Iu接口消息中的无线接入承载修改请求消 息将用户 CSG成员关系或者本地访问连接去激活指示通过 HNB GW发送给 HNB;
根据步骤 1401的判定， 如果 Gn/Gp SGSN需要指示家庭基站触发本地 网关发起所有已激活的本地访问 PDN连接释放， 那么在所有本地访问 PDN 连接对应的无线承载的修改参数中携带用户 CSG成员关系或者本地访问连 接去激活指示。 如果 Gn/Gp SGSN需要指示家庭基站触发本地网关发起会话 管理上下文中与 CSG绑定的 APN所对应的本地访问 PDN连接释放，那么在 与 CSG绑定的 APN所对应的本地访问 PDN连接对应的无线承载的修改参数 中携带用户 CSG成员关系或者本地访问连接去激活指示。
HNB 可以根据上述携带指示的无线承载找到相应的本地访问连接及为 其服务的 L-GGSN, 触发 L-GGSN发起本地访问 PDN连接去激活。
需要说明的是：
如果 Gn/Gp SGSN使用用户 CSG成员关系参数指示 HNB触发 L-GGSN 发起本地访问 PDN连接去激活， 那么 HNB需要将其和以前的 CSG成员关 系进行比较， 如果发现用户从 CSG成员变成非 CSG成员， 就触发 L-GGSN 发起无线承载对应的本地访问 PDN连接去激活。 如果 Gn/Gp SGSN使用本地访问连接去激活参数指示 HNB触发 L-GGSN 发起本地访问 PDN连接去激活， 那么 HNB在收到本地访问连接去激活参数 指示后就触发 L-GGSN发起无线承载对应的本地访问 PDN连接去激活。
步骤 1404, HNB响应无线接入承载修改响应消息；
步骤 1405, HNB根据步骤 1403的判定， 通过 HNB与 L-GGSN之间的
Sxx接口或者内部接口通知 L-GGSN发起相应的本地访问 PDN连接释放，其 中 Sxx接口为尚未标准化的接口；
步骤 1406 , L-GGSN回复通知响应消息；
步骤 1407-1408, L-GGSN发起 PDP上下文去激活过程；
步骤 1409- 1410, 本地访问 PDN连接对应的无线承载释放。
需要说明的是， EPC网络 S4 SGSN情况下的本地访问 PDN连接处理同 实施例一至四， 不同在于 Iu接口通知釆用的消息不同 （同实施例五至八） ， 此处不做赘述， 实施例应做同等覆盖。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成， 所述程序可以存储于计算机可读存储介质中， 如只读 存储器、 磁盘或光盘等。 可选地， 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地， 上述实施例中的各模块 /单元可以釆用 硬件的形式实现， 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
当然， 本发明还可有其他多种实施例， 在不背离本发明精神及其实质的 但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。
工业实用性
釆用本发明实施例方法和装置， 当本地访问签约信息发生动态变化， 特 别是用户终端从 CSG签约用户变为非 CSG签约用户时， 使网络侧可以释放 本地访问连接， 避免不必要的资源浪费。

Claims

权 利 要 求 书
1、 一种本地访问连接的处理方法， 包括：
用户终端处于连接状态且通过混合模式家庭基站接入时， 如果核心网移 动性管理单元检测到该用户终端的闭合用户组（CSG )成员关系发生了改变 或者超时，核心网移动性管理单元发起受影响的本地访问分组数据网络（ PDN ) 连接释放，或者通知家庭基站触发本地网关发起受影响的本地访问 PDN连接 释放。
2、 如权利要求 1所述的方法， 其中，
用户终端的 CSG成员关系发生改变或者超时，包括：该用户终端从 CSG 签约用户变为非 CSG签约用户。
3、 如权利要求 2所述的方法， 其中，
所述释放的本地访问 PDN连接 , 包括： 已激活的所有本地访问 PDN连 接， 或者与 CSG绑定的接入点名 （ APN )所对应的本地访问 PDN连接。
4、 如权利要求 1或 2或 3所述的方法， 其中，
所述核心网移动性管理单元通知家庭基站触发本地网关发起本地访问
PDN连接释放， 包括：
所述移动性管理单元通过 S1消息或 Iu接口消息中的指示通知家庭基站 触发本地网关发起本地访问 PDN连接释放。
5、 如权利要求 4所述的方法， 其中，
所述 S1消息包括： 演进的无线接入承载修改请求消息； 所述 Iu接口消 息包括： 无线接入承载修改请求消息。
6、 如权利要求 4所述的方法， 其中，
所述指示包括： 用户终端当前的 CSG成员关系信息；
家庭基站收到所述指示后，通过比较判断如果该用户终端的 CSG成员关 系发生了改变， 则触发本地网关发起本地访问 PDN连接释放。
7、 如权利要求 4所述的方法， 其中，
所述指示包括： 本地访问去激活指示； 家庭基站收到所述指示后，直接触发本地网关发起本地访问 PDN连接释 放。
8、一种本地访问连接的处理装置，包括检测模块和分组数据网络( PDN ) 连接释放模块， 包括：
所述检测模块， 设置为： 在用户终端处于连接状态且通过混合模式家庭 基站接入时， 检测到该用户终端的闭合用户组（CSG )成员关系是否发生改 变或者超时；
所述 PDN连接释放模块，设置为： 在所述检测模块检测到该用户终端的 CSG成员关系发生改变或者超时时，发起受影响的本地访问 PDN连接释放， 或者通知家庭基站触发本地网关发起受影响的本地访问 PDN连接释放。
9、 如权利要求 8所述的装置， 其中，
所述用户终端的 CSG成员关系发生改变或者超时， 包括： 该用户终端从 CSG签约用户变为非 CSG签约用户。
10、 如权利要求 9所述的装置， 其中，
所述释放的本地访问 PDN连接， 包括： 已激活的所有本地访问 PDN连 接， 或者与 CSG绑定的 APN所对应的本地访问 PDN连接。
11、 如权利要求 8或 9或 10所述的装置， 其中，
所述 PDN连接释放模块是设置为：釆用以下方式通知家庭基站触发本地 网关发起本地访问 PDN连接释放： PDN连接释放模块通过 S1消息或 Iu接 口消息中的指示通知家庭基站触发本地网关发起本地访问 PDN连接释放。
12、 如权利要求 11所述的装置， 其中，
所述 S1消息包括： 演进的无线接入承载修改请求消息； 所述 Iu接口消 息包括： 无线接入承载修改请求消息。
13、 如权利要求 11所述的装置， 其中，
所述指示包括： 用户终端的 CSG成员关系信息或本地访问去激活指示。
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