WO2012100684A1 - Procédé et dispositif de commande d'accès à un réseau local - Google Patents

Procédé et dispositif de commande d'accès à un réseau local Download PDF

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Publication number
WO2012100684A1
WO2012100684A1 PCT/CN2012/070309 CN2012070309W WO2012100684A1 WO 2012100684 A1 WO2012100684 A1 WO 2012100684A1 CN 2012070309 W CN2012070309 W CN 2012070309W WO 2012100684 A1 WO2012100684 A1 WO 2012100684A1
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WIPO (PCT)
Prior art keywords
local network
access
network
local
remotely
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PCT/CN2012/070309
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English (en)
Chinese (zh)
Inventor
康艳超
周燕飞
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电信科学技术研究院
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Publication of WO2012100684A1 publication Critical patent/WO2012100684A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/14—Access restriction or access information delivery, e.g. discovery data delivery using user query or user detection

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and apparatus for controlling access to a local network.
  • BACKGROUND H(e)B (Home (Evolved) NodeB, a home base station) is a base station device that improves indoor wireless coverage, and also provides a local access function, that is, a UE can access a local network associated with a home base station through a home base station. For example: home network and corporate network.
  • LIPA Local IP Access
  • a UE User Equipment
  • a local network for example, a home network or a corporate network
  • the UE accesses the local network through the LGW (Local Gateway).
  • the local gateway can be implemented on the same physical entity as the home base station, or can be located in different physical entities.
  • the PDN packet data network (PDN) connection of the LTE Long Term Evolution (LTE) system is an IP connection established between the UE and the packet data network.
  • the network After receiving the PDN connection establishment request of the UE, the network will select the appropriate PDN GW packet data gateway (PDN Gateway, the packet data gateway can be written as PDN GW or can be written as PGW).
  • PDN Gateway the packet data gateway can be written as PDN GW or can be written as PGW.
  • the PDN GW recorded in the PDN subscription context of the user is preferentially selected.
  • the PDN network is a local network, such as a home network or a corporate network
  • the PGW is an LGW (local gateway).
  • a direct user path is used between the home base station and the local gateway, and user data can directly enter the local network or access the Internet (Internet) through the home base station and the local gateway.
  • LIPA access control is for each APN (Access Point Name, access point name, used to identify the PDN network) and each CSG (Closed Subscriber Group), specifically by MME (Mobility Management Entity, The mobility management entity) controls based on the PDN subscription context of the UE. Therefore, in the PDN subscription context of the UE, the CSG cell LIPA corresponding to which CSG IDs (CSG identifiers) can be accessed by the UE can be used to access the local networks corresponding to the APNs.
  • the UE can access the PDN network through the home base station to access the PLMN (Public Land Mobile Network), and can also use the LIPA technology to pass between the home base station and the local gateway. Direct user access to the local network.
  • PLMN Public Land Mobile Network
  • Embodiments of the present invention provide a method and apparatus for controlling access to a local network, which are used to control a UE to remotely access a local network.
  • the UE When determining that the APN is an APN of a local network, the UE has local IP access rights of the local network, and the UE is a UE that needs to remotely access the local network, according to packet data corresponding to the UE
  • the network PDN subscription context determines whether the UE is allowed to access the local network remotely.
  • An APN obtaining unit configured to acquire an access point name APN of a network that the user equipment UE requests to access; a determining processing unit, configured to: when determining that the APN is an APN of a local network, where the UE has a local network The IP access right, and the UE is a UE that needs to remotely access the local network, and determines whether to allow the UE to remotely access the local network according to the packet data network PDN subscription context corresponding to the UE.
  • the access point name APN of the network that the user equipment UE requests to access is obtained; when the APN is determined to be the APN of the local network, the UE has the local IP access right of the local network, and the UE When it is required to remotely access the UE of the local network, according to the packet data network PDN signing context corresponding to the UE, determining whether to allow the UE to remotely access the local network, thereby implementing control of the UE remotely accessing the local network, when In the case that the UE is allowed to access the local network remotely, the UE may be further accessed by the remote network.
  • FIG. 1 is a schematic flowchart of a method for controlling access to a local network according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a network of a local home base station according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a specific process of controlling a core network control node to access a local network according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of an attach process initiated by a UE
  • FIG. 5 is a schematic diagram of a PDN connection process initiated by a UE
  • FIG. 6 is a schematic flowchart of a method according to Embodiment 3 of the present disclosure.
  • FIG. 7 is a schematic structural diagram of an apparatus for controlling access to a local network according to an embodiment of the present disclosure
  • FIG. 8 is a schematic diagram of two user paths connected to a PDN network and a local network according to the prior art
  • FIG. 9 is a schematic diagram of a user path of a user remotely accessing a local network according to an embodiment of the present invention.
  • a method and apparatus for controlling access to a local network are used to control a UE to remotely access a local network.
  • the embodiment of the present invention proposes that when a CSG member (that is, a UE having the access right of the CSG cell) has the LIPA access right of the local network of the CSG cell and is not within the access range of the CSG cell, the CSG member can pass the PLMN.
  • a CSG member that is, a UE having the access right of the CSG cell
  • the CSG member can pass the PLMN.
  • VPN visited PLMN
  • the technical solution provided by the embodiment of the present invention is applicable to an LTE system and a UMTS (Universal Mobile Telecommunication System).
  • a method for controlling a core network control node to access a local network includes the following steps:
  • the UE When determining that the APN is the APN of the local network, the UE has the LIPA (Local IP Access) right of the local network, and the UE is a UE that needs to remotely access the local network, according to the packet data network corresponding to the UE.
  • the PDN subscription context determines whether the UE is allowed to access the local network remotely.
  • the core network control node in the embodiment of the present invention is an MME (Mobility Management Entity) or an SGSN (GPRS Service Support Node).
  • MME Mobility Management Entity
  • SGSN GPRS Service Support Node
  • the UE is determined to be a UE that needs to remotely access the local network, and includes:
  • the UE When the CSG ID (closed user group identifier) is not carried in the Attach Request message or the service request message sent by the UE, the UE is determined to be a UE that needs to remotely access the local network.
  • the CSG ID (closed user group identifier) of the CSG cell is carried in the attach request message or the service request message sent by the HeNB.
  • the determining, according to the packet data network PDN subscription context corresponding to the UE, determining whether to allow the UE to remotely access the local network includes:
  • the core network control node may obtain the PDN corresponding to the UE from the HSS (Home Subscriber Server) or the Home Location Register (HLR) in the UE-initiated attach process or the service request process. Sign the contract and save it, which can be applied directly.
  • HSS Home Subscriber Server
  • HLR Home Location Register
  • the identifier of the local network in the local network corresponding to different UEs in the HSS and the HLR is added in advance, and the identifier of the local network may be allowed to be remotely accessed, for example: Remote Access Permission ).
  • the identifier is set based on the subscription information of the user and the home network operator, and is used to identify whether the user can remotely access the local network. For example, when the identifier is set to 1, the UE is allowed to remotely access the local network, and the identifier is set. When 0, it means that the UE is not allowed to access the local network remotely.
  • the identifier of the local network in the roaming state may be allowed to be remotely accessed in the PDN subscription context of the local network corresponding to the different UEs in the HSS and the HLR.
  • the identifier may be: VPLMN Remote Access Allowed (VPLMN Remote Access Allowed).
  • the identifier is set in the roaming agreement between the home network operator and the roaming network operator to identify whether the user can remotely access the local network in the roaming network having the roaming agreement. For example, when the identifier is set to 1, it indicates that the UE in the roaming state is allowed to access the local network remotely. When the identifier is set to 0, the UE in the roaming state is not allowed to remotely access the local network.
  • the method further includes:
  • the method further includes:
  • the UE in the roaming state is controlled to remotely access the local network.
  • the controlling the UE to access the local network remotely includes:
  • the UE remotely accessing the local network in the roaming state includes:
  • the LGW address recorded in the PDN subscription context corresponding to the UE in the roaming state is taken as the PDN of the UE.
  • the determining the local gateway LGW address of the local network includes:
  • the home base station and the local gateway may be separate physical entities, and the local home base station network (LHN) is as shown in FIG. 2, where a Packet Data Network (PDN) is also a local network.
  • LHN local home base station network
  • PDN Packet Data Network
  • An LHN consists of a set of H(e) Bs that can obtain IP connections to the local network through one or more LGWs.
  • An LHN is identified by an LHN ID.
  • the LHN has the following characteristics:
  • a home base station can only belong to one LHN;
  • An LGW can only belong to one LHN
  • the network When the network selects the PDN GW, it will preferentially choose to record the PDN GW in the user's PDN subscription context. If the PDN GW address is not provided in the subscription information, the network can use the subscription information to obtain the address of the PDN GW by querying the DNS.
  • the LGW address of the local network may be recorded in advance in the PDN GW entry in the PDN subscription context of the local network corresponding to different UEs in the HSS, and may be different in the HLR and different UEs.
  • the GGSN (Gateway GPRS Support Node) identifier of the GGSN (Gateway GPRS Support Node) in the PDN subscription context of the corresponding local network records the LGW address of the local network, or increases the record and the APN allowing remote access.
  • the LGW address can be an FQDN (Fully Qualified Domain Name) or an IP address (address).
  • the PDN GW recorded in the PDN subscription context of the user is preferentially selected, so the PDN GW entry in the PDN subscription context of the local network corresponding to the different UEs in the HSS is recorded locally here.
  • the LGW address of the network, and the GGSN identity entry in the PDN subscription context of the local network corresponding to different UEs in the HLR record the LGW address of the local network, which can improve the efficiency of remote access to the local network without waiting for the HeNB to report the LGW. address.
  • the MME may check the remote location for establishing the UE to the local network from the DNS according to the LHN ID and the APN.
  • the LGW address to be accessed, the specific method can be:
  • the MME sends a query LGW address request to the DNS, where the LHN ID and the APN are carried;
  • the DNS determines the LGW address corresponding to the LHN according to the LHN ID (possibly including multiple LGW addresses);
  • the DNS determines the LGW address corresponding to the APN from the LGW address corresponding to the LHN according to the APN, and sends the LGW address to the MME.
  • the LGW address can be used as a PDN GW when remotely accessing the local network, providing access to the local network. Specific explanations are given below.
  • the UE When the user needs to initiate remote access, the UE sends the APN of the local network that needs to be remotely accessed to the network side. Specifically, the PDN connection request message or the Activate Packet Data Protocol Context Request may be activated. Context Request) The APN unit (IE) in the message is transmitted.
  • the core network control node determines according to the subscription data: This is an APN of the local network, and the UE has the LIPA access right of the local network identified by the APN, and the UE is not An access request is initiated in a CSG cell of the local network of the APN that allows LIPA access. Then, the core network control node determines whether the UE has subscription information for remote access to the local network, and if so, allows the UE to perform remote access. Further, in the user roaming scenario, the core network control node determines whether the UE has subscription information for remote access in the VPLMN.
  • the specific judgment process of the core network control node is shown in Figure 3, including the steps:
  • the core network control node determines whether the APN sent by the UE is an APN of the local network, and if yes, performs step S203; otherwise, performs step S202.
  • the core network control node accesses according to the existing process, and the determining process is terminated.
  • the core network control node further determines whether the UE has the LIPA access right of the local network that accesses the APN identifier. If yes, step S205 is performed. Otherwise, step S204 is performed.
  • the core network control node rejects the access request of the UE, and the determining process is terminated.
  • the core network control node determines whether the cell that the UE initiates the connection request is a CSG cell that is allowed to access the LIPA by the local network identified by the APN. If yes, step S206 is performed; otherwise, step S207 is performed.
  • the cell in which the UE initiates the connection request is a CSG cell that the local network of the APN identity allows the LIPA to access, if the UE initiates the connection request.
  • the cell is a CSG cell that the local network of the APN identity allows the LIPA to access.
  • the CSG ID is included in the attach request message or the service request message sent by the UE. Otherwise, the CSG ID is not included in the attach request message or the service request message sent by the UE. . Therefore, it can be determined whether the cell in which the UE initiates the connection request is a CSG cell that the local network that the APN identifies allows the LIPA to access, that is, whether the UE needs to remotely access the local network.
  • the core network control node performs the LIPA access procedure according to the provisions of the existing protocol, and the determining process is terminated.
  • the core network control node determines, according to the user subscription information, whether the UE has the right to remotely access the local network of the APN identifier. If yes, step S208 is performed. Otherwise, step S211 is performed.
  • the core network control node determines, according to the PLMN ID submitted by the UE, whether the user is a diffuse The user is logged, if yes, step S209 is performed, otherwise, step S211 is performed.
  • the core network control node determines, according to the user subscription information, whether the user has the right to remotely access the local network of the APN identifier from the VPLMN. If yes, step S210 is performed; otherwise, step S211 is performed.
  • the core network control node accepts the remote access, and the judgment process is terminated.
  • the core network control node rejects the remote access, and the determining process is terminated.
  • the core network control node After determining that the UE accepts the remote access to the local network identified by the APN from the PLMN or the VPLMN, the core network control node completes the process of the UE accessing the local network identified by the APN remotely from the PLMN or the VPLMN by using the procedure specified by the existing protocol.
  • the local network identified by the APN may be regarded as a normal PDN network, and obtained locally from a PDN GW item or a GGSN identity item in a PDN subscription context of a local network corresponding to different UEs in the HSS or HLR.
  • the LGW address of the network is used as the PDN GW of the remote access local network, or if the LGW address of the local network is not recorded in the PDN subscription context of the local network corresponding to the UE, the LHN ID is recorded (local
  • the home base station network identifier can be used to determine the LHN ID, and the APN determines the LGW address, and then completes the process of the UE remotely accessing the local network identified by the APN according to the existing procedure.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the user-initiated Attach process is shown in Figure 4.
  • the user accesses the local network remotely through the LTE system through the Attach process.
  • the UE sets a Ciphered Options Transfer Flag in the Attach Request message sent to the network side, indicating that the APN will be provided to the network side in subsequent messages. And, the subsequent UE sends an APN of the local network that initiates the remote access to the MME in the Ciphered Options Response message sent to the network side.
  • the MME obtains the PDN subscription context corresponding to the UE saved in the HSS through the Update Location Ack message sent by the HSS, and saves it locally. Then, the MME performs a remote access control step, that is, performs remote access control according to the remote access determination logic shown in FIG. 2: If the remote access is accepted, the MME allocates the local network of the APN identifier recorded in the PDN subscription context to the UE.
  • Corresponding LGW or, according to the LHN ID and APN recorded in the PDN subscription context, allocate the LGW address to the UE, and use the existing procedure to establish a remote access to the local network for the UE; if the remote access is rejected, the MME may reject the UE The PDN connection request, and returns the reason for the rejection.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the PDN connection process initiated by the UE is as shown in FIG. 5, and the user requests to remotely access the local network through the LTE system through the PDN connection process initiated by the UE.
  • the UE sends the APN of the local network that needs to be remotely accessed to the MME in the PDN Connectivity Request. Then, the MME performs a remote access control step, that is, remote access as shown in FIG. Determining logic, performing remote access control: If the remote access is accepted, the MME allocates the LGW corresponding to the local network of the APN identifier recorded in the PDN subscription context to the UE, or uses the LHN ID and the APN recorded in the PDN subscription context as the UE. The LGW address is allocated, and the existing procedure is used to establish remote access to the local network for the UE; if the remote access is rejected, the MME may reject the PDN connection request of the UE and return the reason for the rejection.
  • a remote access control step that is, remote access as shown in FIG. Determining logic, performing remote access control: If the remote access is accepted, the MME allocates the LGW corresponding to the local network of the APN identifier recorded in the PDN subscription context to the UE, or
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the PDP Context Activation Procedure is shown in Figure 5.
  • the user requests remote access to the local network through the UMTS system through the PDP Context Activation Procedure.
  • the MS mobile terminal
  • the MS sends an APN of the local network that needs to be remotely accessed to the SGSN in the Activate PDP context request message.
  • the SGSN performs a remote access control step, that is, performs remote access control according to the remote access judgment logic shown in FIG. 3: If the remote access is accepted, the SGSN allocates the local network of the APN identifier recorded in the PDN subscription context to the MS.
  • Corresponding LGW or, according to the LHN ID and APN recorded in the PDN subscription context, allocate an LGW address to the UE, and use the existing process to establish a remote access to the local network for the MS; if the remote access is rejected, the SGSN may reject the MS The PDN connection request, and returns the reason for the rejection.
  • an apparatus for controlling access to a local network includes:
  • the APN obtaining unit 101 is configured to acquire an access point name APN of the network that the user equipment UE requests to access; the determining processing unit 102 is configured to: when determining that the APN is an APN of a local network, where the UE has the local network The local IP access right, and the UE is a UE that needs to remotely access the local network, and determines whether to allow the UE to remotely access the local network according to the packet data network PDN subscription context corresponding to the UE.
  • the determining processing unit 102 determines that the UE is a UE that needs to remotely access the local network when the CSG ID is not carried in the attach request message or the service request message sent by the UE.
  • the determining processing unit 102 determines whether to allow the UE to remotely access the local network according to whether the UE is allowed to remotely access the identifier of the local network in the PDN subscription context corresponding to the UE.
  • the determining processing unit 102 determines, when the UE is allowed to remotely access the local network, whether the UE is a UE in a roaming state; if yes, according to a PDN subscription context corresponding to the UE in the roaming state Whether the UE in the roaming state is allowed to remotely access the identity of the local network, and whether the UE in the roaming state is allowed to remotely access the local network; otherwise, the UE is controlled to remotely access the local network.
  • the determining processing unit 102 controls the UE in the roaming state to remotely access the local network when determining that the UE in the roaming state is allowed to remotely access the local network.
  • the determining processing unit 102 establishes a remote access of the UE to the local network by using the local gateway LGW address recorded in the PDN subscription context corresponding to the UE as the PDN gateway address of the UE;
  • the LGW address recorded in the PDN signing context corresponding to the UE is used as the PDN gateway address of the UE, and the flood is established.
  • the determining processing unit 102 obtains a local home base station network identifier LHN ID of the local network recorded in the PDN subscription context corresponding to the UE, and determines the LGW address according to the LHN ID and the APN.
  • the device may be an MME or an SGSN.
  • the UE may access the PDN network through the home base station to access the PDN network, or may access the local through the direct user path between the home base station and the local gateway by using the LIPA technology.
  • the network cannot access the local network remotely when the UE is in the PLMN.
  • the access point name APN of the network that the user equipment UE requests to access is obtained.
  • the APN is determined to be the APN of the local network, and the UE has the local IP access right of the local network, And if the UE is a UE that needs to remotely access the local network, determine whether to allow the UE to access the local network remotely according to the packet data network PDN subscription context corresponding to the UE, so that the UE can remotely control the local network.
  • the UE may further access the local network according to the existing protocol, as shown in FIG. 9 .
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention is in the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) in which computer usable program code is embodied.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

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

Abstract

La présente invention concerne un procédé et un dispositif permettant la commande d'accès à un réseau local, notamment la commande d'un équipement d'utilisateur (UE) pour qu'il accède à distance au réseau local. Le procédé consiste à : acquérir un nom de point d'accès (nom APN) envoyé par un UE et faisant partie d'un réseau auquel un accès est demandé ; et lorsqu'il est déterminé que le nom APN est un nom APN d'un réseau local, que l'UE a l'autorité d'effectuer un accès IP local au réseau local, et que l'UE est un UE demandant un accès distant au réseau local, déterminer, selon un contexte de souscription à un réseau de données en mode paquets (PDN) correspondant à l'UE, si l'UE est autorisé à accéder à distance au réseau local.
PCT/CN2012/070309 2011-01-25 2012-01-13 Procédé et dispositif de commande d'accès à un réseau local WO2012100684A1 (fr)

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CN2011100265634A CN102083174A (zh) 2011-01-25 2011-01-25 一种控制接入本地网络的方法及装置
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CN201110192651.1 2011-07-11
CN201110192651.1A CN102291800B (zh) 2011-01-25 2011-07-11 一种控制接入本地网络的方法及装置

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