WO2011003310A1 - 一种核心网进行接入控制判断的方法、装置及系统 - Google Patents

一种核心网进行接入控制判断的方法、装置及系统 Download PDF

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Publication number
WO2011003310A1
WO2011003310A1 PCT/CN2010/073431 CN2010073431W WO2011003310A1 WO 2011003310 A1 WO2011003310 A1 WO 2011003310A1 CN 2010073431 W CN2010073431 W CN 2010073431W WO 2011003310 A1 WO2011003310 A1 WO 2011003310A1
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Prior art keywords
base station
user
access
access control
home base
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PCT/CN2010/073431
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English (en)
French (fr)
Inventor
王静
王笛
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中兴通讯股份有限公司
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Publication of WO2011003310A1 publication Critical patent/WO2011003310A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • 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 the field of communications, and in particular to a method, device and system for performing an access control judgment on a user in a connected state after a base station access mode is changed. Background technique
  • the home base station is a small, low-power base station deployed in indoor places such as homes and offices. Its role is mainly 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 home base stations are affordability, convenience, low power output, plug and play, broadband access, support for single mode terminals, and more.
  • the home base station can be applied in a third generation (3G, 3 Generation) or Long Term Evolution (LTE) wireless communication network.
  • 3G, 3 Generation 3 Generation
  • LTE Long Term Evolution
  • a new network element that is, a home base station gateway, is introduced in the radio access network.
  • the main functions performed by the home base station gateway are: verifying the security of the home base station, 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 responsible for switching the core network (CN, Core Network). Data information with the home base station.
  • CN Core Network
  • FIG. 1 is a schematic diagram of a 3G wireless network architecture including a home base station.
  • a 3G home base station is connected to a home base station gateway through a newly defined Iuh interface, and the home base station gateway provides an IuCS interface to a core network circuit domain for the home base station. And the IuPS interface to the core network packet domain.
  • the home base station gateway is mandatory in the deployment to shield the impact on the user equipment (UE, User Equipment) and the network side after the introduction of the home base station; for the LTE wireless network, the home base station gateway It is optional in the deployment.
  • the home base station gateway may not integrate the user plane function.
  • the home base station will directly establish a user plane connection with the user plane gateway of the core network, as shown in FIG. In this way, the user plane can be flattened and the data transmission delay can be reduced.
  • the access modes of the home base station are classified into three types: closed mode, mixed mode, and open mode. Since the home base station has a certain degree of privacy as a user-level device, there is a contract restriction for the use of users in different access modes.
  • closed mode only the subscriber of the home base station can access and enjoy the service provided by the home base station; when the access mode of the home base station is in the open mode, any user can access,
  • the home base station at this time is equivalent to the macro base station; when the access mode of the home base station is the hybrid mode, any user can access the same, but it is necessary to distinguish different levels according to whether the user subscribes, that is, the subscribed user is using the hybrid.
  • the mode of the home base station has a higher service priority and can enjoy better quality of service and service categories.
  • Whether to allow the user to use the access control judgment of the home base station may be performed by the home base station gateway, or may be performed by the mobility management entity of the core network, that is, the access control judgment point may be at the home base station gateway or the mobility of the core network.
  • Manage entities The choice between the home base station gateway and the mobility management entity is based on whether the UE has the Closed Subscriber Group (CSG) capability and whether the core network supports the CSG concept. The following is a brief description of the selection and execution mode of the access control decision point.
  • CSG Closed Subscriber Group
  • the CSG concept was proposed after the introduction of a home base station.
  • a home or a user within an enterprise forms a closed subscriber group that is differentiated and identified by a CSG identity (CSG ID); the home base station serving the subscribers within the closed subscriber group has the same CSG identity.
  • CSG ID CSG identity
  • the user can access multiple home base stations corresponding to the CSG, such as the user's office, home, and the like.
  • ACL The concept of Allowed CSG List
  • ACL can be stored in the user's UE and the user data server on the network side.
  • the access control judgment point for the user of the corresponding UE is located in the mobile sexual management entity.
  • the mobility management entity performs the access control judgment on the user by using the ACL delivered by the user data server, the CSG identifier reported by the home base station, and the access mode.
  • the access control decision point for the user of the corresponding UE is located at the home base station gateway.
  • the home base station gateway performs an access control judgment on the user by using the correspondence between the user identifier stored by the configuration server and the home base station.
  • the configuration server may be a database for storing user-related information in the wireless network, and user-related information such as a correspondence between the user identifier and the home base station.
  • the access mode of the home base station changes, there is a certain impact on the user currently connected. For example, if the access mode of the home base station is changed from the hybrid mode or the open mode to the closed mode, then the access control needs to be re-executed for the currently connected user, and the unsigned user is released or switched to another suitable cell.
  • the specific processing is as follows:
  • the access mode of the home base station is changed from the hybrid mode or the open mode to the closed mode.
  • the home base station notifies the home base station gateway and the mobility management entity of the changed access mode, that is, the current access mode; the home base station gateway uses the correspondence between the user identifier and the base station for all users who do not have CSG capability and are in the connected state.
  • the relationship performs the access control judgment; the mobility management entity can determine all the users currently in the connected state by using the home base station identifier reported by the home base station or all the cell identifiers corresponding to the home base station, but the mobility management entity cannot User's CSG ability In other words, it is impossible to distinguish which users should be re-executed the access control judgment, and then the access control judgment of the home base station gateway collides or a miss judgment or a false judgment occurs.
  • the main object of the present invention is to provide a method, device and system for determining access control of a core network, so that the core network accurately performs access control judgment on the user when the access mode of the base station changes.
  • a method for determining access control by a core network, after the access mode of the base station is changed, the method includes:
  • the mobility management entity obtains user access information that needs to perform access control judgment, and performs access control judgment on the corresponding user according to the obtained user access information.
  • the user access information is user information; the mobility management entity obtains user access information that needs to perform control judgment, and the method includes: the base station gateway provides the mobility management entity with user information that needs to perform access control determination.
  • the user information is: a user identifier; or a user air interface connection identifier.
  • the user access information is an access control tag
  • the obtaining, by the mobility management entity, the user access information that needs to perform the control judgment comprises: the mobility management entity recording the access control identifier in the mobility management context generated by the user initializing the access;
  • the mobility management entity obtains the user that needs to perform the access control judgment, and includes: according to the identifier of the base station or all the cell identifiers deployed in the base station, all the users in the connection state under the base station that change the access mode are found, according to the record connection.
  • the incoming control flag determines the user who needs to perform the access control decision.
  • the method further includes:
  • the base station gateway provides the mobility management entity with the base station identity of the base station changing the access mode, or All cell identifiers deployed under the base station; and/or,
  • the base station gateway performs an access control decision for a user who does not have a Closed Subscriber Group (CSG) capability and is in a connected state.
  • CSG Closed Subscriber Group
  • a device for performing access control judgment on a core network comprising:
  • the determining unit is configured to perform an access control determination on the corresponding user according to the user access information.
  • the user access information is an access control flag; the acquiring unit includes:
  • a recording unit configured to record an access control tag in a mobility management context of the user
  • a storage unit configured to store a mobility management context of the user including the access control tag
  • an access unit configured to use, according to the identity of the base station or all deployed under the base station
  • the cell identifier is used to find all the users in the connected state under the base station that change the access mode, and the user who has the CSG capability and is in the connected state is determined by accessing the access control flag of the user stored in the storage unit.
  • the user access information is user information, the user information is from a base station gateway; and/or the user access information is a user identifier or a user air interface connection identifier.
  • a system for determining access control by a core network comprising:
  • the base station gateway after the access mode of the base station is changed, provides the mobility management entity with user access information that needs to perform access control judgment;
  • the mobility management entity is configured to perform an access control judgment on the corresponding user according to the received user access information.
  • the user access information is: a user identifier, or a user air interface connection identifier; and/or, the base station gateway is further configured to provide the mobility management entity with a base station identifier of the base station that changes the access mode, or is deployed under the base station. All cell identifiers; and/or,
  • the base station gateway is further configured to perform an access control determination on a user that does not have CSG capability and is in a connected state.
  • the mobility management entity obtains user access information that needs to perform access control determination, and the mobility management entity performs access to the corresponding user according to the obtained user access information.
  • the control judges that the core network can avoid the conflict with the access control judgment of the base station gateway, and there is no missed or misjudged situation, and the connection state user with different CSG capabilities can be ensured after the access mode of the base station is changed. Accurately complete access control.
  • FIG. 1 is a schematic diagram of a 3G wireless network architecture including a home base station
  • FIG. 2 is a schematic diagram 1 of an LTE wireless network architecture including a home base station;
  • FIG. 3 is a schematic diagram 2 of an LTE wireless network architecture including a home base station;
  • FIG. 4 is a schematic diagram 3 of an LTE wireless network architecture including a home base station;
  • FIG. 5 is a schematic diagram of a message flow according to a specific embodiment 1 of the present invention.
  • FIG. 6 is a schematic flowchart of a message according to a second embodiment of the present invention.
  • FIG. 7 is a schematic flowchart of a message according to a third embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of an apparatus for performing access control judgment in the present invention.
  • FIG. 9 is a schematic structural view of an acquisition unit in the present invention.
  • FIG. 10 is a schematic structural diagram of a system for performing access control judgment on a core network according to the present invention. detailed description
  • the mobility management entity after the access mode of the base station is changed, the mobility management entity obtains the user access information that needs to perform the access control judgment, and the mobility management entity performs the access control judgment on the corresponding user according to the obtained user access information.
  • the user access information may be user information or an access control flag.
  • the home base station gateway provides the mobility management entity with user information that needs to perform access control determination, and the mobility management entity according to the received
  • the user information is used to perform an access control judgment on the corresponding user, and the user information may be a user identifier, or may be a user air interface connection identifier;
  • the mobility management entity records the access control flag in the mobility management context of the user; after the access mode of the base station changes, the mobility management entity determines the corresponding user that needs to perform the access control determination according to the recorded access control flag. Perform access control judgment.
  • the change of the access mode of the home base station may mean that the home base station is changed from the hybrid mode or the open mode to the closed mode, and may also mean that the home base station is changed from the open mode to the hybrid mode.
  • FIG. 5 is a message flow diagram of a first embodiment of the present invention. As shown in FIG. 5, in the embodiment, the specific processing after the home base station access mode is changed includes:
  • Step 501 Under the supervision of the operator, the administrator of the home base station can change the access mode of the home base station.
  • Step 502 After the access mode of the home base station is changed, send a home base station registration request message or other newly defined message to the home base station gateway, and the home base station registration request message or other newly defined message is based on the home base station application part (HNBAP).
  • the protocol includes the home base station identifier and the changed access mode of the home base station, that is, the current access mode of the home base station.
  • Step 503 After receiving the home base station registration request message or the newly defined message, the home base station gateway stores the current access mode of the home base station, and returns an accept message to the home base station.
  • Step 504 When the home base station gateway determines that there is a user in the connected state under the home base station that changes the access mode, the home base station gateway re-executes the access control judgment for the user who does not have the CSG capability and is in the connected state, and is not suitable for the access change.
  • the user of the home base station in the access mode initiates a release or handover operation; for a user with CSG capability and in a connected state, the home base station gateway will instruct the mobility management entity to re-execute the access control decision.
  • Step 505 The home base station gateway sends the radio access network application part to the mobility management entity.
  • (RANAP) information exchange request message if only one home base station cell is deployed in the home base station that changes the access mode, the RANAP information exchange request message includes the home base station identifier, the current access mode of the home base station, and the need to perform the connection. If the home base station that changes the access mode is configured with multiple home base station cells, the RANAP information exchange request message includes all home base station cell identifiers and homes deployed under the home base station that changes the access mode. The current access mode of the base station and the user identity that needs to perform access control judgment.
  • Step 506 After receiving the RANAP information exchange request message, the mobility management entity returns a RANAP information interaction confirmation message to the home base station gateway.
  • Step 507 The mobility management entity searches for the corresponding user in the mobility management (MM) context of all users according to the user identifier reported by the home base station gateway, and re-executes the access control judgment according to the current access mode of the home base station, A user of a home base station adapted to access the changed access mode initiates a release or handover operation.
  • the specific implementation of the access control judgment by the mobility management entity is basically the same as the existing one, and therefore, it will not be described again.
  • FIG. 6 is a message flow diagram of a second embodiment of the present invention. As shown in FIG. 6, in this embodiment, the specific processing after the home base station access mode is changed includes:
  • Step 601 Under the supervision of the operator, the administrator of the home base station can change the access mode of the home base station.
  • Step 602 After the access mode of the home base station is changed, send a home base station registration request message or other newly defined message to the home base station gateway, where the home base station registration request message or other newly defined message is based on the HNBAP protocol, including the home base station identifier and the change.
  • the access mode of the home base station that is, the current access mode of the home base station.
  • Step 603 After receiving the home base station registration request message or other newly defined message, the home base station gateway stores the current access mode of the home base station, and returns an accept message to the home base station.
  • Step 604 When the home base station gateway determines that there is a user in the connected state under the home base station changing the access mode, the home base station gateway is heavy on the user who does not have the CSG capability and is in the connected state. Performing an access control judgment to initiate a release or handover operation for a user of a home base station that is not suitable for accessing the changed access mode; for a user having a CSG capability and being in a connected state, the home base station gateway instructs the mobility management entity to re-instruct it Perform access control judgment.
  • Step 605 The home base station gateway sends a RANAP information exchange request message to the mobility management entity. If only one home base station cell is deployed in the home base station that changes the access mode, the RANAP information exchange request message includes the home base station identifier and the home base station.
  • the air interface connection identifier refers to the user identifier of the interface between the base station and the mobility management entity, and may specifically refer to the Iu interface identifier in this embodiment; If the home base station that changes the access mode is configured with multiple home base station cells, the RANAP information exchange request message includes all home base station cell identifiers deployed under the home base station that change the access mode, the current access mode of the home base station, and The user air interface connection identifier that needs to perform access control judgment.
  • Step 606 After receiving the RANAP information exchange request message, the mobility management entity returns a RANAP information interaction confirmation message to the home base station gateway.
  • Step 607 The mobility management entity searches for the corresponding user in the MM context of all users according to the user air interface connection identifier reported by the home base station gateway, and re-executes the access control judgment according to the current access mode of the home base station, and is not suitable for access.
  • the user of the home base station changing the access mode initiates a release or handover operation.
  • Figure 7 is a message flow diagram of a third embodiment of the present invention. As shown in Figure 7, in the embodiment, the specific processing after the home base station access mode is changed includes:
  • Step 701 The UE of the user initiates a non-access stratum (NAS) message to trigger a radio resource control (RRC) connection between the user and the home base station. At this time, the UE also reports the CSG capability of the UE.
  • NAS non-access stratum
  • RRC radio resource control
  • Step 702 The user's NAS message is sent to the home base station for buffering through the RRC initial direct transmission message.
  • the user registration request message includes the user identifier and the CSG capability of the UE.
  • Step 704 After receiving the user registration request message, the home base station gateway performs an access control judgment on the user who does not have the CSG capability. For the user with the CSG capability, because the access control judgment point is in the mobility management entity, the home base station The gateway always accepts registration requests for CSG-capable users.
  • Step 705 The home base station gateway returns a user registration accept message to the home base station, where the user registration accept message includes a context identifier allocated by the home base station gateway, and is used to identify the user between the home base station and the home base station gateway.
  • Step 706 After receiving the user registration accept message, the home base station sends the cached NAS message to the home base station gateway by using the RANAP connection message.
  • Step 707 After receiving the RANAP connection message, the home base station gateway sends a RANAP connection message to the mobility management entity, where the RANAP connection message includes the NAS message, and the CSG identity and access mode of the home base station, so that the core network completes the access. Control judgment.
  • Step 708 After receiving the RANAP connection message, the mobility management entity performs an access control judgment according to the CSG identity of the home base station, the access mode, and the ACL of the user, and records the access control flag in the MM context of the user after the success.
  • the access control decision is performed by the subsequent mobility management entity.
  • Step 709 Under the supervision of the operator, the administrator of the home base station can change the access mode of the home base station.
  • Step 710 After the access mode of the home base station is changed, send a home base station registration request message or other newly defined message to the home base station gateway, where the home base station registration request message or other newly defined message is based on the HNBAP protocol, including the home base station identity and the change.
  • the access mode of the home base station that is, the current access mode of the home base station.
  • Step 711 After receiving the home base station registration request message, the home base station gateway stores the current access mode of the home base station, and returns an accept message to the home base station.
  • Step 712 When the home base station gateway determines that there is a user in the connected state under the home base station that changes the access mode, the home base station gateway re-executes the access control judgment for the user who does not have the CSG capability and is in the connected state, and is not suitable for the access change.
  • the user of the home base station in the access mode initiates a release or handover operation.
  • Step 713 The home base station gateway sends a RANAP information exchange request message to the mobility management entity. If only one home base station cell is deployed in the home base station that changes the access mode, the RANAP information exchange request message includes the home base station identifier and the home base station. The current access mode; if there are multiple home base station cells deployed in the home base station that changes the access mode, the RANAP information exchange request message includes all home base station cell identifiers and home base stations deployed under the home base station that change the access mode. Current access mode.
  • Step 714 After receiving the RANAP information exchange request message, the mobility management entity returns a RANAP information interaction confirmation message to the home base station gateway.
  • Step 715 The mobility management entity searches for all connected users in the home base station that changes the access mode according to the home base station identifier or all the home base stations deployed in the home base station, and the area identifier, according to the recorded access control flag. Determining the user with the CSG capability and being in the connected state, re-executing the access control judgment in conjunction with the current access mode of the home base station, and initiating a release or handover operation for the user of the home base station that is not suitable for accessing the changed access mode.
  • the specific implementation of the present invention has been described by taking only the home base station as an example.
  • the solution of the present invention is not applicable to the present invention.
  • the solution of the present invention can be applied to the case where any base station has multiple access modes. Therefore, the base station in the solution of the present invention It can be an HNB or HeNB, or any other base station that can work in multiple access modes.
  • FIG. 8 is a schematic structural diagram of an apparatus for performing access control judgment according to the present invention.
  • the apparatus includes: an obtaining unit and a determining unit, where the acquiring unit is used for an access mode of a base station After the change occurs, user access information that needs to be determined by the mobility management entity to perform access control determination is obtained; the determining unit is configured to perform an access control determination on the corresponding user according to the user access information.
  • the user access information may be user information or an access control flag.
  • the device is a mobility management entity of the core network.
  • the user information is from a base station gateway.
  • the user information may be a user identifier or a user air interface connection identifier.
  • FIG. 9 is a schematic structural diagram of an acquiring unit according to the present invention.
  • the user access information is an access control flag
  • the acquiring unit may include a recording unit, a storage unit, and an access unit, where the recording unit is used for the user.
  • the access control tag is recorded in the mobility management context;
  • the storage unit is configured to store the mobility management context of the user including the access control tag;
  • the access unit is configured to find the change access mode according to the identity of the base station or all cell identifiers deployed under the base station All users in the connected state under the base station determine the CSG-capable and connected users by accessing the access control flags of the users stored in the storage unit.
  • the system includes: a base station gateway and a core network, where the base station gateway is used to change the access mode of the base station to the core.
  • the network provides user access information that needs to perform access control judgment; the core network is configured to perform access control judgment on the corresponding user according to the received user access information.
  • the user access information may be a user identifier or a user air interface connection identifier.
  • the base station gateway is further configured to provide the mobility management entity with the base station identity of the base station changing the access mode, or all cell identifiers deployed under the base station.
  • the base station gateway may be further configured to perform an access control decision for a user who does not have CSG capability and is in a connected state.

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Abstract

本发明公开了一种核心网进行接入控制判断的方法、装置及系统。本发明方案中，基站的接入模式发生改变后，移动性管理实体获得需要执行接入控制判断的用户接入信息，移动性管理实体根据获得的用户接入信息对相应用户执行接入控制判断，使得核心网能够避免与基站网关的接入控 制判断发生冲突，不会存在漏判、错判的情况，保证了基站的接入模式发 生改变后，具有不同CSG能力的连接状态用户能够准确地完成接入控制。

Description

一种核心网进行接入控制判断的方法、 装置及系统 技术领域
本发明涉及通信领域， 特别是指一种基站的接入模式发生改变后， 核 心网对处于连接状态的用户进行接入控制判断的方法、 装置及系统。 背景技术
家用基站是一种小型、 低功率的基站， 部署于家庭及办公室等室内场 所， 其作用主要是为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系统的覆盖不足。 家用基站 的优点是实惠、 便捷、 低功率输出、 即插即用、 宽带接入、 支持单模终端 等。
家用基站可以应用在第三代（3G, 3 Generation )或长期演进（ LTE, Long Term Evolution )无线通信网络中。 为了便于对家用基站进行管理， 在 无线接入网引入一个新网元， 即家用基站网关。 家用基站网关主要执行的 功能为： 验证家用基站的安全性， 处理家用基站的注册， 对家用基站进行 运行维护管理，根据运营商要求配置和控制家用基站，负责交换核心网（CN, Core Network )与家用基站之间的数据信息。
图 1为包含家用基站的 3G无线网络架构示意图， 如图 1所示， 3G家 用基站通过新定义的 Iuh接口连接至家用基站网关，家用基站网关为家用基 站提供到核心网电路域的 IuCS接口、 和到核心网分组域的 IuPS接口。 对 于 3G无线网络而言， 家用基站网关在部署中是必选的， 用来屏蔽引入家用 基站后对用户设备（UE, User Equipment )和网络侧的影响； 对于 LTE无 线网络而言， 家用基站网关在部署中是可选的， 因此， LTE 无线网络中， 家用基站与核心网之间有两种连接方式， 一种是家用基站与核心网的网元 直接相连， 如图 2所示； 另一种是家用基站通过家用基站网关与核心网的 网元相连， 如图 3所示。 图 3 中， 对于引入家用基站网关的情况下， 家用 基站网关可以不集成用户面功能， 此时， 家用基站将与核心网的用户面网 关之间直接建立用户面连接， 如图 4所示， 这样， 可以使用户面扁平化， 减小数据传输时延。
家用基站的接入模式分为闭合模式、 混合模式和开放模式三种。 由于 家用基站作为用户级设备具有一定的私有性， 因此， 对于不同接入模式下 用户的使用存在着签约的限制。 家用基站的接入模式为闭合模式时， 只有 该家用基站的签约用户才能够接入， 并享受该家用基站提供的服务； 家用 基站的接入模式为开放模式时， 任何用户均可以接入， 此时的家用基站等 同于宏基站； 家用基站的接入模式为混合模式时， 同样任何用户均可以接 入， 但是需要根据用户是否签约区分不同的级别， 也就是说， 签约的用户 在使用混合模式的家用基站时具有更高的业务优先级， 能够享受更好的服 务质量和业务类别。
是否允许用户使用家用基站的接入控制判断可以由家用基站网关执 行， 也可以由核心网的移动性管理实体执行， 即接入控制判断点可以在家 用基站网关，也可以在核心网的移动性管理实体。根据 UE是否具有闭合用 户组（ CSG , Closed Subscriber Group ) 能力、 以及核心网是否支持 CSG概 念在家用基站网关和移动性管理实体二者之间进行选择。 下面对接入控制 判断点的选择与执行方式进行简单描述。
CSG概念是引入家用基站后提出的。 通常， 一个家庭或者一个企业内 部的用户组成一个闭合用户组， 这个闭合用户组通过 CSG标识（CSG ID ) 进行区分和识别； 为该闭合用户组内用户提供服务的家用基站具有相同的 CSG标识。用户通过与运营商签约可以接入到多个 CSG所对应的家用基站， 例如用户的办公场所、家庭等。这样，又引入了允许闭合用户组列表（ACL, Allowed CSG List )的概念， ACL可以存储在用户的 UE和网络侧的用户数 据服务器中。
如果用户的 UE具有 CSG能力， 即 UE能够识别、 读取 CSG标识等信 息， 并且核心网支持 CSG概念， 即核心网支持 ACL的处理， 那么， 对于 对应 UE 的用户的接入控制判断点位于移动性管理实体。 用户初始化接入 时， 移动性管理实体利用用户数据服务器下发的 ACL、 结合家用基站上报 的 CSG标识及接入模式对用户执行接入控制判断。
如果用户的 UE不具有 CSG能力或核心网不支持 CSG概念， 那么， 对 于对应 UE 的用户的接入控制判断点位于家用基站网关。 用户初始化接入 时， 家用基站网关利用自身存储的或通过配置服务器获取的用户标识与家 用基站之间的对应关系对用户执行接入控制判断。 配置服务器可以是无线 网络中用于存储用户相关信息的数据库， 用户相关信息如用户标识与家用 基站之间的对应关系。
如果家用基站的接入模式发生改变， 对于当前处于连接状态的用户存 在一定的影响。 例如， 家用基站的接入模式由混合模式或开放模式改变为 闭合模式， 那么， 需要对当前处于连接状态的用户重新执行接入控制， 将 未签约的用户释放或者切换到其他适合的小区。
对于核心网支持 CSG概念、并且由于用户的 UE的 CSG能力不同而造 成的接入控制判断点不同的情况下， 具体处理如下： 家用基站的接入模式 由混合模式或开放模式改变为闭合模式， 家用基站会向家用基站网关和移 动性管理实体通知改变后的接入模式、 即当前接入模式； 家用基站网关对 所有不具有 CSG能力且处于连接状态的用户利用用户标识与基站之间的对 应关系执行接入控制判断； 而移动性管理实体虽然可以通过家用基站上报 的家用基站标识或该家用基站所对应的所有小区标识， 确定当前处于连接 状态的所有用户， 但是由于移动性管理实体无法对用户的 CSG能力进行识 别， 从而无法区分应该对哪些用户重新执行接入控制判断， 进而与家用基 站网关的接入控制判断发生沖突或产生漏判、 误判的情况。 发明内容
有鉴于此， 本发明的主要目的在于提供一种核心网进行接入控制判断 的方法、 装置及系统， 使核心网在基站的接入模式发生改变时， 准确对用 户执行接入控制判断。
为解决上述技术问题， 本发明的技术方案是这样实现的：
一种核心网进行接入控制判断的方法， 基站的接入模式发生改变后， 该方法包括：
移动性管理实体获得需要执行接入控制判断的用户接入信息， 根据获 得的用户接入信息对相应用户执行接入控制判断。
所述用户接入信息为用户信息； 所述移动性管理实体获得需要执行控 制判断的用户接入信息， 包括： 基站网关向移动性管理实体提供需要执行 接入控制判断的用户信息。
所述用户信息为： 用户标识； 或用户空口连接标识。
所述用户接入信息为接入控制标记；
所述移动性管理实体获得需要执行控制判断的用户接入信息包括： 移 动性管理实体在用户初始化接入生成的移动管理上下文中记录接入控制标 记；
所述移动性管理实体获得需要执行接入控制判断的用户， 包括： 根据 基站标识或基站下部署的所有小区标识， 查找到改变接入模式的基站下所 有处于连接状态的用户， 根据记录的接入控制标记确定需要执行接入控制 判断的用户。
该方法进一步包括：
基站网关向移动性管理实体提供改变接入模式的基站的基站标识、 或 该基站下部署的所有小区标识； 和 /或，
基站网关对不具有闭合用户组（CSG ) 能力且处于连接状态的用户执 行接入控制判断。
一种核心网进行接入控制判断的装置， 该装置包括：
获取单元， 用于基站的接入模式发生改变后获得需要由移动性管理实 体执行接入控制判断的用户接入信息；
判断单元， 用于根据所述用户接入信息对相应用户执行接入控制判断。 所述用户接入信息为接入控制标记； 所述获取单元包括：
记录单元， 用于在用户的移动管理上下文中记录接入控制标记； 存储单元， 用于存储包含接入控制标记的用户的移动管理上下文； 访问单元， 用于根据基站标识或基站下部署的所有小区标识， 查找到 改变接入模式的基站下所有处于连接状态的用户， 通过访问所述存储单元 中存储的用户的接入控制标记，确定具有 CSG能力且处于连接状态的用户。
所述用户接入信息为用户信息， 所述用户信息来自于基站网关； 和 /或， 所述用户接入信息为用户标识或用户空口连接标识。
一种核心网进行接入控制判断的系统， 该系统包括：
基站网关， 用于基站的接入模式发生改变后向移动性管理实体提供需 要执行接入控制判断的用户接入信息；
移动性管理实体， 用于根据收到的用户接入信息对相应用户执行接入 控制判断。
所述用户接入信息为： 用户标识， 或用户空口连接标识； 和 /或， 所述基站网关进一步用于向移动性管理实体提供改变接入模式的基站 的基站标识、 或该基站下部署的所有小区标识； 和 /或，
所述基站网关进一步用于对不具有 CSG能力且处于连接状态的用户执 行接入控制判断。 本发明提供的方案中， 基站的接入模式发生改变后， 移动性管理实体 获得需要执行接入控制判断的用户接入信息， 移动性管理实体根据获得的 用户接入信息对相应用户执行接入控制判断， 使得核心网能够避免与基站 网关的接入控制判断发生沖突， 不会存在漏判、 错判的情况， 保证了基站 的接入模式发生改变后， 具有不同 CSG能力的连接状态用户能够准确地完 成接入控制。 附图说明
图 1为包含家用基站的 3G无线网络架构示意图；
图 2为包含家用基站的 LTE无线网络架构示意图一；
图 3为包含家用基站的 LTE无线网络架构示意图二；
图 4为包含家用基站的 LTE无线网络架构示意图三；
图 5为本发明中具体实施例一的消息流程示意图；
图 6为本发明中具体实施例二的消息流程示意图；
图 7为本发明中具体实施例三的消息流程示意图；
图 8为本发明中进行接入控制判断的装置结构示意图；
图 9为本发明中获取单元的结构示意图；
图 10为本发明中核心网进行接入控制判断的系统结构示意图。 具体实施方式
本发明中， 基站的接入模式发生改变后， 移动性管理实体获得需要执 行接入控制判断的用户接入信息， 移动性管理实体根据获得的用户接入信 息对相应用户执行接入控制判断。 用户接入信息可以是用户信息， 也可以 是接入控制标记。
具体地， 基站的接入模式发生改变后， 家用基站网关向移动性管理实 体提供需要执行接入控制判断的用户信息， 移动性管理实体根据收到的用 户信息对相应用户执行接入控制判断， 该用户信息可以为用户标识， 也可 以为用户空口连接标识；
或者， 移动性管理实体在用户的移动管理上下文中记录接入控制标记； 基站的接入模式发生改变后， 移动性管理实体根据记录的接入控制标记， 对需要执行接入控制判断的相应用户执行接入控制判断。
下面以家用基站的接入模式发生改变为例， 对本发明中移动性管理实 体对用户进行接入控制判断的具体实现进行详细描述。 家用基站的接入模 式发生改变可以指家用基站由混合模式或开放模式改变为闭合模式， 也可 以指家用基站由开放模式改变为混合模式。
图 5为本发明中具体实施例一的消息流程图， 如图 5所示， 本实施例 中， 家用基站接入模式发生改变后的具体处理包括：
步驟 501 : 在运营商的监督下， 家用基站的管理者可以改变家用基站的 接入模式。
步驟 502: 家用基站的接入模式发生改变后， 向家用基站网关发送家用 基站注册请求消息或者其它新定义的消息， 该家用基站注册请求消息或者 其它新定义的消息基于家用基站应用部分（HNBAP )协议， 包含家用基站 标识和改变后的家用基站的接入模式、 即家用基站的当前接入模式。
步驟 503 : 家用基站网关收到家用基站注册请求消息或者新定义消息 后， 存储家用基站的当前接入模式， 向家用基站返回接受消息。
步驟 504:家用基站网关确定改变接入模式的家用基站下存在处于连接 状态的用户时， 家用基站网关对不具有 CSG能力且处于连接状态的用户重 新执行接入控制判断， 对不适合接入改变接入模式的家用基站的用户发起 释放或者切换操作； 对于具有 CSG能力且处于连接状态的用户， 家庭基站 网关将指示移动性管理实体重新对其执行接入控制判断。
步驟 505: 家用基站网关向移动性管理实体发送无线接入网应用部分 ( RANAP )信息交互请求消息， 如果改变接入模式的家用基站下只部署有 一个家用基站小区， 则该 RANAP信息交互请求消息中包含家用基站标识、 家用基站的当前接入模式、 以及需要执行接入控制判断的用户标识； 如果 改变接入模式的家用基站下部署有多个家用基站小区，则该 RANAP信息交 互请求消息中包含改变接入模式的家用基站下部署的所有家用基站小区标 识、 家用基站的当前接入模式、 以及需要执行接入控制判断的用户标识。
步驟 506: 移动性管理实体收到 RANAP信息交互请求消息后， 向家用 基站网关返回 RANAP信息交互确认消息。
步驟 507:移动性管理实体根据家用基站网关上报的用户标识在所有用 户的移动性管理（MM )上下文中查找到相应的用户， 结合家用基站的当前 接入模式重新执行接入控制判断， 对不适合接入改变接入模式的家用基站 的用户发起释放或者切换操作。 移动性管理实体进行的接入控制判断的具 体实现与现有基本相同， 因此， 不再赘述。
图 6为本发明中具体实施例二的消息流程图， 如图 6所示， 本实施例 中， 家用基站接入模式发生改变后的具体处理包括：
步驟 601 : 在运营商的监督下， 家用基站的管理者可以改变家用基站的 接入模式。
步驟 602: 家用基站的接入模式发生改变后， 向家用基站网关发送家用 基站注册请求消息或者其它新定义消息， 该家用基站注册请求消息或者其 它新定义消息基于 HNBAP协议，包含家用基站标识和改变后的家用基站的 接入模式、 即家用基站的当前接入模式。
步驟 603:家用基站网关收到家用基站注册请求消息或者其它新定义消 息后， 存储家用基站的当前接入模式， 向家用基站返回接受消息。
步驟 604:家用基站网关确定改变接入模式的家用基站下存在处于连接 状态的用户时， 家用基站网关对不具有 CSG能力且处于连接状态的用户重 新执行接入控制判断， 对不适合接入改变接入模式的家用基站的用户发起 释放或者切换操作； 对于具有 CSG能力且处于连接状态的用户， 家庭基站 网关将指示移动性管理实体重新对其执行接入控制判断。
步驟 605: 家用基站网关向移动性管理实体发送 RANAP信息交互请求 消息， 如果改变接入模式的家用基站下只部署有一个家用基站小区， 则该 RANAP信息交互请求消息中包含家用基站标识、 家用基站的当前接入模 式、 以及需要执行接入控制判断的用户空口连接标识， 该空口连接标识指 的是基站和移动性管理实体间接口的用户标识， 本实施例中可以特指 Iu接 口标识； 如果改变接入模式的家用基站下部署有多个家用基站小区， 则该 RANAP信息交互请求消息中包含改变接入模式的家用基站下部署的所有 家用基站小区标识、 家用基站的当前接入模式、 以及需要执行接入控制判 断的用户空口连接标识。
步驟 606: 移动性管理实体收到 RANAP信息交互请求消息后， 向家用 基站网关返回 RANAP信息交互确认消息。
步驟 607:移动性管理实体根据家用基站网关上报的用户空口连接标识 在所有用户的 MM上下文中查找到相应的用户， 结合家用基站的当前接入 模式重新执行接入控制判断， 对不适合接入改变接入模式的家用基站的用 户发起释放或者切换操作。
图 7为本发明中具体实施例三的消息流程图， 如图 7所示， 本实施例 中， 家用基站接入模式发生改变后的具体处理包括：
步驟 701 : 用户的 UE发起非接入层（NAS )消息， 以触发用户与家用 基站之间建立无线资源控制（RRC )连接， 此时， UE还上报 UE的 CSG能 力。
步驟 702:用户的 NAS消息通过 RRC初始直传消息发送到家用基站进 行緩存。 步驟 703: 家用基站收到 RRC初始直传消息后， 向家用基站网关发送 用户注册请求消息， 发起用户注册， 该用户注册请求消息中包含用户标识 及 UE的 CSG能力。
步驟 704: 家用基站网关收到用户注册请求消息后， 对不具有 CSG能 力的用户执行接入控制判断， 对于具有 CSG能力的用户， 由于接入控制判 断点在移动性管理实体， 因此， 家用基站网关对于具有 CSG能力的用户的 注册请求总是接受。
步驟 705: 家用基站网关向家庭基站返回用户注册接受消息， 该用户注 册接受消息中包含家用基站网关分配的上下文标识， 用于在家用基站和家 用基站网关之间标识用户。
步驟 706: 家用基站收到用户注册接受消息后， 通过 RANAP连接消息 将緩存的 NAS消息发送到家用基站网关。
步驟 707: 家用基站网关收到 RANAP连接消息后， 向移动性管理实体 发送 RANAP连接消息， 该 RANAP连接消息中包含 NAS消息、 以及家用 基站的 CSG标识和接入模式， 以使核心网完成接入控制判断。
步驟 708: 移动性管理实体收到 RANAP连接消息后， 根据家用基站的 CSG标识、接入模式以及用户的 ACL执行接入控制判断， 成功后在用户的 MM上下文中记录接入控制标记， 以用于后续移动性管理实体执行接入控 制判断。
步驟 709: 在运营商的监督下， 家用基站的管理者可以改变家用基站的 接入模式。
步驟 710: 家用基站的接入模式发生改变后， 向家用基站网关发送家用 基站注册请求消息或者其它新定义消息， 该家用基站注册请求消息或者其 它新定义消息基于 HNBAP协议，包含家用基站标识和改变后的家用基站的 接入模式、 即家用基站的当前接入模式。 步驟 711 : 家用基站网关收到家用基站注册请求消息后， 存储家用基站 的当前接入模式， 向家用基站返回接受消息。
步驟 712:家用基站网关确定改变接入模式的家用基站下存在处于连接 状态的用户时， 家用基站网关对不具有 CSG能力且处于连接状态的用户重 新执行接入控制判断， 对不适合接入改变接入模式的家用基站的用户发起 释放或者切换操作。
步驟 713： 家用基站网关向移动性管理实体发送 RANAP信息交互请求 消息， 如果改变接入模式的家用基站下只部署有一个家用基站小区， 则该 RANAP信息交互请求消息中包含家用基站标识及家用基站的当前接入模 式； 如果改变接入模式的家用基站下部署有多个家用基站小区， 则该 RANAP信息交互请求消息中包含改变接入模式的家用基站下部署的所有 家用基站小区标识及家用基站的当前接入模式。
步驟 714: 移动性管理实体收到 RANAP信息交互请求消息后， 向家用 基站网关返回 RANAP信息交互确认消息。
步驟 715:移动性管理实体根据家用基站标识或家用基站下部署的所有 家用基站 '』、区标识， 查找到改变接入模式的家用基站下所有处于连接状态 的用户， 根据记录的接入控制标记确定具有 CSG能力且处于连接状态的用 户， 结合家用基站的当前接入模式重新执行接入控制判断， 对不适合接入 改变接入模式的家用基站的用户发起释放或者切换操作。
以上仅以家用基站为例对本发明的具体实现进行了说明， 并非本发明 方案仅适用于此， 本发明方案可以适用于任何基站存在多种接入模式的情 况， 因此， 本发明方案中的基站可以为 HNB或 HeNB, 也可以为其他任何 可工作于多种接入模式的基站。
图 8为本发明中进行接入控制判断的装置结构示意图， 如图 8所示， 该装置包括： 获取单元和判断单元， 其中， 获取单元用于基站的接入模式 发生改变后获得需要由移动性管理实体执行接入控制判断的用户接入信 息； 判断单元用于根据所述用户接入信息对相应用户执行接入控制判断。 用户接入信息可以是用户信息， 也可以是接入控制标记。 所述装置为核心 网的移动性管理实体。
用户接入信息为用户信息时， 所述用户信息来自于基站网关。 具体地， 用户信息可以为用户标识或用户空口连接标识。
图 9为本发明中获取单元的结构示意图， 如图 9所示， 此时， 用户接 入信息为接入控制标记， 获取单元可以包括记录单元、 存储单元和访问单 元， 记录单元用于在用户的移动管理上下文中记录接入控制标记； 存储单 元用于存储包含接入控制标记的用户的移动管理上下文； 访问单元用于根 据基站标识或基站下部署的所有小区标识， 查找到改变接入模式的基站下 所有处于连接状态的用户， 通过访问存储单元中存储的用户的接入控制标 记， 确定具有 CSG能力且处于连接状态的用户。
图 10为本发明中核心网进行接入控制判断的系统结构示意图，如图 10 所示， 该系统包括： 基站网关和核心网， 其中， 基站网关用于基站的接入 模式发生改变后向核心网提供需要执行接入控制判断的用户接入信息； 核 心网用于根据收到的用户接入信息对相应用户执行接入控制判断。 所述用 户接入信息可以为用户标识， 也可以为用户空口连接标识。
基站网关进一步用于向移动性管理实体提供改变接入模式的基站的基 站标识、 或该基站下部署的所有小区标识。
基站网关还可以进一步用于对不具有 CSG能力且处于连接状态的用户 执行接入控制判断。
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围。

Claims

权利要求书
1、 一种核心网进行接入控制判断的方法， 其特征在于， 基站的接入模 式发生改变后， 该方法包括：
移动性管理实体获得需要执行接入控制判断的用户接入信息， 根据获 得的用户接入信息对相应用户执行接入控制判断。
2、 根据权利要求 1所述的方法， 其特征在于， 所述用户接入信息为用 户信息； 所述移动性管理实体获得需要执行控制判断的用户接入信息， 包 括： 基站网关向移动性管理实体提供需要执行接入控制判断的用户信息。
3、 根据权利要求 2所述的方法， 其特征在于， 所述用户信息为： 用户 标识； 或用户空口连接标识。
4、 根据权利要求 1所述的方法， 其特征在于，
所述用户接入信息为接入控制标记；
所述移动性管理实体获得需要执行控制判断的用户接入信息包括： 移 动性管理实体在用户初始化接入生成的移动管理上下文中记录接入控制标 记；
所述移动性管理实体获得需要执行接入控制判断的用户， 包括： 根据 基站标识或基站下部署的所有小区标识， 查找到改变接入模式的基站下所 有处于连接状态的用户， 根据记录的接入控制标记确定需要执行接入控制 判断的用户。
5、 根据权利要求 1至 4任一所述的方法， 其特征在于， 该方法进一步 包括：
基站网关向移动性管理实体提供改变接入模式的基站的基站标识、 或 该基站下部署的所有小区标识； 和 /或，
基站网关对不具有闭合用户组（CSG ) 能力且处于连接状态的用户执 行接入控制判断。
6、 一种核心网进行接入控制判断的装置， 其特征在于， 该装置包括： 获取单元， 用于基站的接入模式发生改变后获得需要由移动性管理实 体执行接入控制判断的用户接入信息；
判断单元， 用于根据所述用户接入信息对相应用户执行接入控制判断。
7、 根据权利要求 6所述的装置， 其特征在于， 所述用户接入信息为接 入控制标记； 所述获取单元包括：
记录单元， 用于在用户的移动管理上下文中记录接入控制标记； 存储单元， 用于存储包含接入控制标记的用户的移动管理上下文； 访问单元， 用于根据基站标识或基站下部署的所有小区标识， 查找到 改变接入模式的基站下所有处于连接状态的用户， 通过访问所述存储单元 中存储的用户的接入控制标记，确定具有 CSG能力且处于连接状态的用户。
8、 根据权利要求 6所述的装置， 其特征在于，
所述用户接入信息为用户信息， 所述用户信息来自于基站网关； 和 /或， 所述用户接入信息为用户标识或用户空口连接标识。
9、 一种核心网进行接入控制判断的系统， 其特征在于， 该系统包括： 基站网关， 用于基站的接入模式发生改变后向移动性管理实体提供需 要执行接入控制判断的用户接入信息；
移动性管理实体， 用于根据收到的用户接入信息对相应用户执行接入 控制判断。
10、 根据权利要求 9所述的系统， 其特征在于，
所述用户接入信息为： 用户标识， 或用户空口连接标识； 和 /或， 所述基站网关进一步用于向移动性管理实体提供改变接入模式的基站 的基站标识、 或该基站下部署的所有小区标识； 和 /或，
所述基站网关进一步用于对不具有 CSG能力且处于连接状态的用户执 行接入控制判断。
PCT/CN2010/073431 2009-07-10 2010-06-01 一种核心网进行接入控制判断的方法、装置及系统 WO2011003310A1 (zh)

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