WO2012129997A1 - Procédé et dispositif pour traiter une connexion d'accès à un réseau local - Google Patents

Procédé et dispositif pour traiter une connexion d'accès à un réseau local Download PDF

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Publication number
WO2012129997A1
WO2012129997A1 PCT/CN2012/071247 CN2012071247W WO2012129997A1 WO 2012129997 A1 WO2012129997 A1 WO 2012129997A1 CN 2012071247 W CN2012071247 W CN 2012071247W WO 2012129997 A1 WO2012129997 A1 WO 2012129997A1
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WO
WIPO (PCT)
Prior art keywords
local access
network element
side network
permission list
list information
Prior art date
Application number
PCT/CN2012/071247
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English (en)
Chinese (zh)
Inventor
王静
周娜
Original Assignee
中兴通讯股份有限公司
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Filing date
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Publication of WO2012129997A1 publication Critical patent/WO2012129997A1/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
    • H04W48/02—Access restriction performed under specific conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release

Definitions

  • 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.
  • a Home Subscriber Server HSS
  • MME Mobility Management Entity
  • SGSN Serving GPRS Support Node
  • 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 subscription data, and is located in 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.
  • Service GPRS support node is a global mobile communication system (Global System for Mobile)
  • GSM Global System for Mobile Communications
  • EDGE Enhanced Data Rate for GSM Evolution
  • GERAN GSM EDGE Radio Access Network
  • UMTS Universal Mobile Telecommunications System
  • UTRAN Universal Mobile Telecommunications System
  • the service support point for users to access the core network similar in function to the mobility management entity, responsible for user location update, paging management, and bearer management. And other functions.
  • the service gateway is the 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.
  • the function gateway is responsible for counting the situation in which the user terminal uses the wireless network, and generates the CDRs of the terminal using the wireless network, and transmits the CDRs 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 operator's core network.
  • the policy charging rule function entity is a server in the evolution system responsible for providing charging control, online credit control, threshold control, and quality of service (QoS) policy aspects.
  • the radio access network is composed of an evolved base station (Evolved NodeB, referred to as e B) and a 3G radio network controller (Radio Network Controllor, RNC for short), which is mainly responsible for receiving and receiving wireless signals and contacting the terminal through the air interface. Manage radio resources, resource scheduling, and access control for the air interface.
  • the service GPRS support node is an upgraded SGSN, which can support the S4 interface with the service gateway, and communicates with the mobility management unit by using GPRS Tunneling Protocol version 2 (GTPv2).
  • GTPv2 GPRS Tunneling Protocol version 2
  • PS Packet Switching
  • the SGSN and the MME are connected by using a Gn interface, and the interworking uses GPRS Tunneling Protocol version 1, hereinafter referred to as GTPvl.
  • 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 (He B) is a small, low-power base station that is deployed as a dedicated resource for some users in a home, group, company, or
  • the use of private places such as schools is mainly to provide users with higher service rates and lower the cost of using high-speed services, while at the same time making up for the shortage of existing distributed cellular wireless communication systems.
  • 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.
  • the home base station gateway can also access the core network, as shown in FIG. 2b.
  • 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.
  • a local gateway is added to the local access of the IP device or the Internet, as shown in Figure 2a-2c.
  • the addition of the local access gateway can provide strong support for the local access technology.
  • the local gateway can be combined with the wireless side network element or in the vicinity of the wireless side network element (ie, external), or can be combined with the home base station gateway or at home. Near the base station gateway (ie external).
  • the local gateway includes a local PGW (Local PGW, abbreviated as L-GW), and a local GGSN (Local GGSN, abbreviated as L-GGSN).
  • Figure 3 shows the data flow path for local access and traditional core network access in a mobile communication network architecture. For users who support local access, traditional core network access data paths and local access data paths can be established at the same time. As shown in FIG. 3, for a locally accessed connection, the local access data path is from the terminal to the wireless side network element to the local access gateway (eg, L-GW, and L-GGSN), and the data transmission does not pass through the core network.
  • the local access gateway eg, L-GW, and L-GGSN
  • the local access function is a way for the home or enterprise to provide access to resources by internal private users.
  • the application is not open to all users on the network, and there is no need to move the user out of the home or enterprise range. To provide such access resources.
  • the local access service does not need to support the mobility of the entire network, and only provides the mobility of the local mobile range, thereby conforming to the application characteristics of the local access function, and also reducing the network. Additional processing by the operator to support local access.
  • the present invention provides a method and apparatus for processing a local access connection to at least solve the problem in the related art that it is impossible to determine whether a local access connection needs maintenance.
  • a processing method of a local access connection is provided.
  • the processing method of the local access connection includes: the wireless side network element receives the local access permission list information sent by the core network mobility management unit; the wireless side network element maintains the local access connection or releases the local according to the local access permission list information. Access the connection.
  • the receiving, by the wireless side network element, the local access permission list information sent by the core network mobility management unit includes: in the process of establishing the user context by the wireless side network element, the wireless side network element receives the local access permission list sent by the core network mobility management unit.
  • Information wherein the core network mobility management unit transmits local access permission list information by a message including one of: an initial context establishment request message, a downlink non-access stratum transmission message, and a handover request message.
  • the core network mobility management unit sends local access permission list information through an interface message including one of the following: an Iu interface message, an S1 interface message.
  • the receiving, by the wireless side network element, the local access permission list information sent by the core network mobility management unit includes: the wireless side network element sending a local access permission list obtaining message to the core network mobility management unit, where the local access permission list obtaining message is used for the request Obtaining the local access permission list information; the wireless side network element receives the local access permission list response message sent by the core network mobility management; the wireless side network element obtains the local access permission list information carried in the local access permission list response message.
  • the radio side network element maintains the local access connection according to the local access permission list information: the radio side network element selects the target radio side network element, and determines the target radio side network element according to the local access permission list information. Supports local access service continuity; the wireless side network element selects a target radio side network element that supports local access service continuity according to local access permission list information.
  • the determining, by the radio side network element, the target radio side network element to support the local access service continuity according to the local access permission list information includes: if the radio side network element determines that the information of the target radio side network element is included in the local access permission list information, The radio side network element determines that the target radio side network element supports local access service continuity, where the information of the target radio side network element includes at least one of the following: a closed subscriber group CSG identifier, a base station identifier, and a base station address. In the case that the target radio side network element does not support local access service continuity or does not select a target radio side network element that supports local access service continuity, the radio side network element releases the local access connection.
  • the target radio side network element does not support the local access service continuity, wherein the information of the target radio side network element includes at least one of the following: CSG Identification, base station identification, base station address.
  • the core network mobility management unit includes one of the following: a mobility management entity, a service general packet radio service support node; and a radio side network element including one of the following: a home base station, a home base station gateway.
  • the local access permission list information includes at least one of the following: closed user group identification information corresponding to the APN that has activated the local access connection, and the contracted closed user group identification set information used to represent the mobility range, for the table
  • the locating area information of the local access connection service is supported, wherein the area information for characterizing the contiguous local access connection service includes at least one of the following: a base station identification set, an address set, and an address part.
  • the local access connection includes one of the following: a local IP access access connection, a selective IP transport offload access connection.
  • the above local access permission list information is used to indicate an area that supports local access service continuity.
  • the processing device of the local access connection may be applied to a wireless side network element, including a receiving module, configured to receive local access permission list information sent by the core network mobility management unit; and a processing module configured to be based on the local access permission list Information, maintain a local access connection or release a local access connection.
  • the core network mobility management unit is used to send the local access permission list information, so that the wireless side network element performs the determination according to the local access permission list information, thereby providing the user with the mobility within the local access area, which is consistent with
  • the application features of the local access feature can also reduce the additional processing that the network operator does to support local access.
  • FIG. 1 is a schematic structural diagram of an evolved packet domain system according to the related art
  • FIG. 2a is a schematic diagram of a radio side network element accessing a core network according to the related art
  • FIG. 2b is a radio side network element connection according to the related art.
  • FIG. 2 is a schematic diagram of a data flow path of a local side access and a core network access according to the related art;
  • FIG. 3 is a schematic diagram of a data flow path according to the related art
  • FIG. 5 is an interaction flowchart of a method for processing a local access connection according to a preferred embodiment of the present invention
  • FIG. 6 is an interaction flowchart of a processing method of a local access connection according to a preferred embodiment 2 of the present invention
  • FIG. 7 is a structural block diagram of a processing apparatus for a local access connection according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of a method for processing a local access connection according to an embodiment of the present invention. As shown in FIG. 4, the following steps S402 to S404 are included. Step S402, the radio side network element receives the local access permission list information sent by the core network mobility management unit. Step S404, the wireless side network element maintains the local access connection or releases the local access connection according to the local access permission list information. In the related art, it is impossible to determine whether the local access connection requires maintenance.
  • the core network mobility management unit is used to send the local access permission list information, so that the wireless side network element performs the determination according to the local access permission list information, so that the mobility of the local access area can be provided for the user, so that It not only meets the application characteristics of the local access function, but also reduces the additional processing that the network operator does to support local access.
  • the receiving, by the wireless network element, the local access permission list information sent by the core network mobility management unit includes: in the process of establishing the user context by the wireless side network element, the wireless side network element receives the local information sent by the core network mobility management unit.
  • Access permission list information wherein the core network mobility management unit transmits local access permission list information by a message including one of: an initial context establishment request message, a downlink non-access stratum transmission message, and a handover request message.
  • the core network mobility management unit sends the local access permission list information through an interface message including one of: an Iu interface message, an S1 interface message.
  • the receiving, by the wireless side network element, the local access permission list information sent by the core network mobility management unit comprises: the wireless side network element sending a local access permission list obtaining message to the core network mobility management unit, where the local access permission list obtains the message And the wireless side network element obtains the local access permission list response message sent by the local network access permission response message; the wireless side network element obtains the local access permission list information carried in the local access permission list response message.
  • the wireless side network element maintains the local access connection according to the local access permission list information: the wireless side network element selects the target wireless side network element, and determines the target wireless according to the local access permission list information.
  • the side network element supports the local access service continuity; the wireless side network element selects the target wireless side network element that supports the local access service continuity according to the local access permission list information.
  • the method further includes: initiating user switching to the target wireless side network element in the foregoing situation.
  • the determining, by the radio side network element, the target radio side network element to support the local access service continuity according to the local access permission list information includes: if the radio side network element determines that the information of the target radio side network element is included in the local access permission list information, The radio side network element determines that the target radio side network element supports local access service continuity, where the information of the target radio side network element includes at least one of the following: a closed subscriber group CSG identifier, a base station identifier, and a base station address.
  • the radio side network element releases the local access connection.
  • the target radio side network element does not support the local access service continuity, wherein the information of the target radio side network element includes at least one of the following: CSG Identification, base station identification, base station address.
  • the core network mobility management unit comprises one of the following: a mobility management entity, a serving general packet radio service support node; and a radio side network element comprising one of the following: a home base station, a home base station gateway.
  • the local access permission list information includes at least one of the following: closed user group identification information corresponding to the APN of the activated local access connection, subscription closed user group identification set information for characterizing the mobility range, used to represent the support local And accessing the continuous area information of the connection service, where the area information used to represent the continuation of the local access connection service includes at least one of the following: a base station identity set, an address set, and an address segment.
  • the core network mobility management unit may obtain the foregoing information by signing or configuring, and further, the core network mobility management unit may also combine the foregoing information to generate local access permission list information.
  • the local access connection comprises one of the following: a local IP access access connection, a selective IP transmission offload access connection.
  • FIG. 5 is an interaction flowchart of a method for processing a local access connection according to a preferred embodiment of the present invention.
  • the embodiment includes two parts, and a part of the wireless side network element enters a connection state.
  • the user context is generated, and the local access permission list information is retained in the user context, as described in step 5A below.
  • the other part is the mobility management of the local access connection according to the local access permission list information when the wireless side network element initiates the handover to the user, as described in step 5B below.
  • the step 5A includes the following three scenarios: the core network mobility management unit sends the local access permission list information to the wireless side network element when the user enters the connection state, and the wireless side network element saves the locally accessed user context in the locally generated user context.
  • Scenario 1 When a user initiates a NAS (Non-Access Stratum) message, such as an attach, a service request, a PDN connection setup request, etc., the core network mobility management unit is caused to establish the necessary initial user context.
  • Step 5A01 The core network mobility management unit carries the local access permission list information in the initial context setup request message sent to the wireless side network element. The wireless side network element saves it in the locally generated user context until the user enters the idle state.
  • NAS Non-Access Stratum
  • Step 5A02 The radio side network element returns an initial context setup response message.
  • Scenario 2 The core network mobility management unit is transmitting a downlink NAS message (for example, responding to an uplink NAS message or a session management type downlink message).
  • Step 5A03 The core network mobility management unit may carry the local access permission list information when transmitting the downlink NAS message, and the wireless side network element saves the foregoing information in the local context.
  • Scenario 3 The user initiates a handover to the target radio side network element, and the mobility management unit sends the local access permission list information to the target radio side network element for local storage.
  • the mobility management unit carries the local access permission list information in the handover request message sent to the target radio side network element.
  • Step 5A05 the target radio side network element replies to the handover request acknowledgement information.
  • the S1 handover is taken as an example.
  • the handover request message carrying the local access permission list information may be directly transmitted between the radio side network elements.
  • step 5B includes the following steps: Step 5B01: The source radio side network element selects a target radio side network element suitable for handover according to the measurement report information reported by the user, and determines whether the target radio side network element supports local access according to the local access permission list information in 5A before performing the handover. Business continuity.
  • the specific determination method is as follows:
  • the measurement report information reported by the user includes information such as a CSG identifier, a base station identifier, and an address of the target radio side network element, and the source radio side network element may use the foregoing information to compare with the local access permission list information for determining. If the foregoing information of the target radio side network element is included in the local access permission list information, the source radio side network element determines that the local access connection can be maintained, and otherwise initiates the release.
  • the source radio side network element may also perform switching according to the local access permission list information, which preferably supports the continuous access to the radio side network element of the local access service.
  • step 5B02 if the target radio side network element selected by the source radio side network element does not support the local access service continuous or cannot select the target radio side network element that supports the local access service, the source radio side network element notifies or cooperates with it.
  • the separate offload gateway initiates the release of the local access connection.
  • the notification message is an internal message (the combination of the wireless side network element and the offload gateway) or a newly defined Sxx interface message between the wireless side network element and the divided distribution gateway (the wireless side network element and the distribution gateway are separated).
  • Step 5B03 If the target radio side network element selected by the source radio side network element supports the local access service continuity, the local access connection is not processed, and the normal handover process is performed.
  • Step 601 The source radio side network element determines to initiate a handover process for the user according to the measurement report information reported by the user, and optionally performs the target radio side network element selection. Before performing the handover procedure, the source radio side network element discovers that the currently active local access connection is based on the local access bearer information (eg, L-GW TEID information, etc.), and then initiates a local access permission list acquisition message to the mobility management unit.
  • Step 602 The core network mobility management unit sends the local access permission list information to the source radio side network element in the response message.
  • the source radio side network element determines whether to support the local access service continuity according to the information, and optionally the source radio side network element preferably supports the local access service continuous radio side network element to perform handover according to the local access permission list information.
  • Step 603 The radio side network element determines whether to support the local access service connection.
  • the specific determination method is as follows: The measurement report information reported by the user includes information such as a CSG identifier, a base station identifier, and an address of the target radio side network element, and the source radio side network element may use the foregoing information to compare with the local access permission list information for determining.
  • the source radio side network element determines that the local access connection can be maintained, and otherwise initiates the release.
  • Step 604 If the target radio side network element selected by the source radio side network element does not support the local access service continuity, the source radio side network element notifies the shunt gateway that is set up or divided to initiate the local access connection release.
  • the notification message is an internal message (the combination of the wireless side network element and the offload gateway) or a newly defined Sxx interface message between the wireless side network element and the branching distribution gateway (the wireless side network element and the offload gateway are separated).
  • Step 605 If the target radio side network element selected by the source radio side network element supports the local access service continuity, the local access connection is not processed, and the normal handover process is performed.
  • the steps shown in the flowchart of the accompanying drawings may be performed in a computer system such as a set of computer executable instructions, and, although the logical order is shown in the flowchart, in some cases, The steps shown or described may be performed in an order different than that herein.
  • the embodiment of the present invention provides a processing device for a local access connection, and the processing device of the local access connection may be configured as a wireless side network element, and the processing device of the local access connection may be used to implement the processing method of the local access connection.
  • FIG. 7 is a structural block diagram of a processing apparatus for a local access connection according to an embodiment of the present invention.
  • a receiving module 72 and a processing module 74 are included.
  • the structure is described in detail below.
  • the receiving module 72 is configured to receive the local access permission list information sent by the core network mobility management unit.
  • the processing module 74 is connected to the receiving module 72, and configured to maintain the local access connection according to the local access permission list information received by the receiving module 72. Release the local access connection.
  • the processing device of the local access connection described in the device embodiment corresponds to the foregoing method embodiment, and the specific implementation process has been described in detail in the method embodiment, and details are not described herein again.
  • a method and apparatus for processing a local access connection are provided.
  • the core network mobility management unit is used to send the local access permission list information, so that the wireless side network element performs the determination according to the local access permission list information, thereby providing the user with the mobility within the local access area, which is consistent with
  • the application features of the local access feature can also reduce the additional processing that the network operator does to support local access.
  • the computing device may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or Implementing multiple modules or steps in them as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

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

Abstract

La présente invention se rapporte à un procédé et à un dispositif adaptés pour traiter une connexion d'accès à un réseau local. Le procédé selon l'invention comprend les étapes suivantes : un élément de réseau sur le côté radio reçoit des données de liste d'autorisation d'accès à un réseau local envoyées par une unité de gestion de la mobilité d'un cœur de réseau (S402); et l'élément de réseau sur le côté radio maintient une connexion d'accès à un réseau local ou libère la connexion d'accès à un réseau local sur la base des données de la liste d'autorisation d'accès à un réseau local (S404). Dans la présente invention, l'unité de gestion de la mobilité du cœur de réseau est utilisée pour envoyer des données de liste d'autorisation d'accès à un réseau local. De cette manière, l'élément de réseau sur le côté radio prend la décision, sur la base des données de la liste d'autorisation d'accès à un réseau local, d'accorder à l'utilisateur une mobilité dans la plage de la zone d'accès au réseau local. Dans ces conditions, des caractéristiques d'application de la fonction d'accès à un réseau local sont satisfaites, et un volume de traitement supplémentaire accompli par l'opérateur de réseau pour prendre en charge l'accès au réseau local peut être réduit.
PCT/CN2012/071247 2011-03-28 2012-02-17 Procédé et dispositif pour traiter une connexion d'accès à un réseau local WO2012129997A1 (fr)

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CN103796249A (zh) * 2014-01-15 2014-05-14 长春电信工程设计院股份有限公司 家庭基站系统中区域业务核心网流量卸载方法

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CN101990313A (zh) * 2009-08-06 2011-03-23 中兴通讯股份有限公司 实现本地ip访问控制的方法、通知方法及系统

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