WO2012134057A2 - Procédé pour obtenir un csg local et contrôler l'accès dans un serveur responsable d'un plan de commande dans un réseau de communication mobile - Google Patents

Procédé pour obtenir un csg local et contrôler l'accès dans un serveur responsable d'un plan de commande dans un réseau de communication mobile Download PDF

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WO2012134057A2
WO2012134057A2 PCT/KR2012/001158 KR2012001158W WO2012134057A2 WO 2012134057 A2 WO2012134057 A2 WO 2012134057A2 KR 2012001158 W KR2012001158 W KR 2012001158W WO 2012134057 A2 WO2012134057 A2 WO 2012134057A2
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csg
information
home
nodeb
related information
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PCT/KR2012/001158
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English (en)
Korean (ko)
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WO2012134057A3 (fr
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김현숙
김래영
김태현
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엘지전자 주식회사
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Priority claimed from KR1020110141453A external-priority patent/KR101884348B1/ko
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to US14/006,413 priority Critical patent/US9301105B2/en
Publication of WO2012134057A2 publication Critical patent/WO2012134057A2/fr
Publication of WO2012134057A3 publication Critical patent/WO2012134057A3/fr
Priority to US15/059,938 priority patent/US9872170B2/en

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

Definitions

  • the present invention relates to a mobile communication system, and more particularly to a Home (e) NodeB system in a mobile communication system.
  • the 3GPP which enacts the technical specifications of 3G mobile communication systems, has developed LTE / SAE as part of efforts to optimize and improve the performance of 3GPP technologies since late 2004 in order to respond to various forums and new technologies related to 4G mobile communication. Started research on Long Term Evolution / System Architecture Evolution technology.
  • 3GPP SAE centered on 3GPP SA WG2
  • 3GPP SA WG2 is a study on network technology aimed at determining network structure and supporting mobility between heterogeneous networks in parallel with LTE work of 3GPP TSG RAN.
  • Recent important standardization issues of 3GPP Is one of. This is a work to develop a 3GPP system into a system supporting various radio access technologies based on IP, and has been aimed at an optimized packet-based system that minimizes transmission delay with improved data transmission capability.
  • the SAE high-level reference model defined by 3GPP SA WG2 includes non-roaming cases and roaming cases in various scenarios. For details, see 3GPP standard documents TS 23.401 and TS 23.402. See for more information.
  • the network structure diagram of FIG. 1 is a simple reconfiguration.
  • 1 is a structural diagram of an evolved mobile communication network.
  • the network architecture of FIG. 1 is based on the eNodeB of Evolved UTRAN and the 2 Tier Model of Gateway of Core Network.
  • the eNodeB is similar to the functions of NodeB and RNC of the existing UMTS system, but the gateway has SGSN / GGSN function of the existing system.
  • FIG. 2 is a diagram illustrating (e) NodeB and Home (e) NodeB.
  • femto base stations such as Home (e) NodeB have been proposed during the approach of increasing cell capacity using such small cells.
  • NodeB 20 shown in FIG. 2 corresponds to a macro base station
  • Home (e) NodeB 30 shown in FIG. 2 may be a femto base station.
  • description will be made based on the terminology of 3GPP, and (e) NodeB 20 is used when referring to NodeB or eNodeB together. Also, Home (e) NodeB is used when referring to Home NodeB and Home eNodeB together.
  • the cell of the Home (e) NodeB 30 has an open access mode, a closed access mode, and a hybrid access mode according to an access permission policy.
  • the Home (e) NodeB 30 cell provides a service without limitation for the serviceable terminals.
  • UMTS / EPS of the 3GPP standard proposes to support the cells of the Home (e) NodeB in the unit of Closed Subscriber Group (CSG). That is, one closed subscriber group (CSG) may be configured with one or more Home (e) NodeBs, and the terminal is also provided with a usage right for a cell of Home (e) NodeB in units of closed subscriber groups (CSGs).
  • the terminal may have at least one available closed subscriber group (CSG), and may have time information allowed for each closed subscriber group (CSG). This is called the Allowed CSG List.
  • This allowed CSG list is stored in the terminal and network entities such as MME, SGSN, MSC, HSS, HLR, and the like.
  • FIG. 3 is an exemplary diagram illustrating an operation mode of a Home (e) NodeB.
  • NodeB 30 has an open access mode of FIG. 3 (a), a closed access mode of FIG. 5 (b), and FIG. It can operate in three modes of hybrid access mode of c).
  • the open access mode means that all UEs can access without restricting access to the cell of the Home (e) NodeB 30 as defined above.
  • the connection of the plurality of UEs 11, 12, 13 is all allowed.
  • the Home (e) NodeB 30 operates as a closed subscriber group (CSG) cell.
  • CSG closed subscriber group
  • the Home (e) NodeB 30 allows access to only allowed user terminals.
  • Home (e) NodeBs 30 have a CSG ID (s) that can provide services. Each user is licensed by CSG.
  • FIG. 3 (c) an example of a hybrid access mode is shown.
  • the hybrid access mode operates as a CSG cell for providing a service to a closed subscriber group (CSG), but allows terminal access of a non-closed subscriber group (non-CSG). For example, as shown, even if the first UE 11 is not a CSG member, it may connect to the Home (e) NodeB 30.
  • the Home (e) NodeB in the visited network operates in the mode for the closed subscriber group or when the UE operates in the mixed access mode.
  • the UE accesses the Home (e) NodeB to reduce the load of the macro base station, i.e., the NodeB, and in order to provide a specific service, the access processing of the UE should be prioritized. Techniques for this need to be presented.
  • the present disclosure provides a method for accessing a terminal roaming into a visited network.
  • the access method includes the steps of receiving local CSG related information defined in the visited network; Obtained in the attach request message for accessing a Home (e) NodeB operated as a closed subscriber group (CSG) or in a mixed access mode or a TAU request message for performing a tracking area update (TAU). Adding at least one of local CSG related information and CSG related information defined in the home network; Sending the attach request message or TAU request message to the Home (e) NodeB; And receiving an accept message or a reject message for an attach request or a TAU request from the Home (e) NodeB.
  • CSG closed subscriber group
  • TAU tracking area update
  • information about the priority between the local CSG-related information and the CSG-related information may be further received.
  • the priority information may be included in the attach request message or the TAU request message and transmitted.
  • the priority information includes: a first element indicating a priority between the local CSG related information and the CSG related information; It may further include one or more of the second elements indicating whether the priority is static or can be changed dynamically.
  • the priority information may further include one or more of information on an acceptable level and information on CSG membership when the attachment or TA is allowed.
  • the access control method may include receiving, by the responsible server, an access request message or an update request message by a roaming terminal from Home (e) NodeB.
  • the Home (e) NodeB may be operated in a Closed Subscriber Group (CSG) or in a mixed access mode.
  • the access request message or the update request message may include local CSG related information defined in the visited network.
  • the server may further include transmitting an acceptance message or a rejection message for the access or update request message to Home (e) NodeB according to the access control.
  • the priority information is a first element for instructing to prioritize any one of the CSG information included in the subscriber information and the CSG information defined in the visited network when there is the mismatch; It may include one or more of the second elements indicating whether the criteria of the access control is static or can be changed dynamically.
  • the priority information may further include one or more of information on an allowed level and information on CSG membership when the result is allowed in the access control.
  • the CSG related information or local CSG related information may further include one or more of a CSG ID and an expiration time information.
  • the CSG related information or local CSG related information may further include the priority information.
  • the CSG-related information or local CSG-related information may include: information on whether CSG services are allowed in the visited network, information on CSG-related information allowed by the visited network, information on the level of CSG services allowed on the visited network, and the case where there is a mismatch. It may include one or more of the priority information for.
  • the priority information may be obtained from a server in the visited network that stores the local CSG information.
  • the priority information may be stored in advance in the server in charge.
  • the present disclosure provides a terminal roaming into a visited network.
  • the terminal includes a receiving unit for receiving local CSG related information defined in the visited network; Obtained in the attach request message for accessing a Home (e) NodeB operated as a closed subscriber group (CSG) or in a mixed access mode or a TAU request message for performing a tracking area update (TAU).
  • the receiver may receive an accept message or a reject message for an attach request or a TAU request from the Home (e) NodeB.
  • the roaming UE in the visited network eliminates unnecessary handover procedure that occurs when the roaming UE fails to access the Home (e) NodeB operating as a CSG.
  • 1 is a structural diagram of an evolved mobile communication network.
  • FIG. 2 is a diagram illustrating (e) NodeB and Home (e) NodeB.
  • FIG. 3 is an exemplary diagram illustrating an operation mode of a Home (e) NodeB.
  • FIG. 4 is an exemplary diagram illustrating a structure of a network including a home (e) NodeB.
  • FIG. 5 is an exemplary diagram illustrating an interface between a Home (e) NodeB 300 and an MME 510 illustrated in FIG. 4 as a protocol stack.
  • FIG. 6 shows a structure and an interface of a mobile communication network.
  • FIG. 7 shows a process of attaching, ie, attaching, a UE to a network.
  • FIG. 8 shows a protocol stack between the UE 100, the Home (e) NodeB 300, and the MME 510.
  • FIG. 10 illustrates an interface in a scenario in which a terminal roams to a visited network but tries to continue to use a service of an operator in a home network, when data of a user plane passes through a home network.
  • FIG. 11 illustrates an interface in a scenario in which a terminal roams to a visited network but tries to continue to use a service of an operator in a home network, in which data of a user plane passes through a home network.
  • FIG. 12 illustrates a procedure of a UE roaming to a visited network according to an embodiment.
  • FIG. 13 illustrates the procedure shown in FIG. 12 in more detail.
  • FIG. 14 illustrates a procedure of a UE roaming to a visited network according to another embodiment.
  • 15 illustrates a procedure of a UE roaming to a visited network according to another embodiment.
  • 16 is a block diagram illustrating an MME 510 according to the present invention.
  • the present invention is applied to the Home (e) NodeB system.
  • Home (e) NodeB refers to Home NodeB and Home eNodeB.
  • the present invention is not limited thereto and may be applied to all communication systems and methods to which the technical spirit of the present invention may be applied.
  • first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
  • first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.
  • the term terminal may be referred to as a user equipment (UE), a mobile equipment (ME), or a mobile station (MS).
  • the UE may be a portable device having a communication function such as a mobile phone, a PDA, a smart phone, a laptop, or the like, or may be a non-portable device such as a PC or a vehicle-mounted device.
  • UMTS Abbreviation for Universal Mobile Telecommunication System, which means the third generation mobile communication network.
  • EPS An abbreviation for Evolved Packet System, it means an efficient network structure that simplifies network entities to support Evolved RAN by evolving the core network of the existing 3GPP system architecture and to increase the efficiency of packet networks.
  • NodeB Base station of the UMTS network, the cell coverage size corresponds to a macro cell.
  • the cell coverage size corresponds to a macro cell.
  • NodeB A term referring to NodeB and eNodeB.
  • the base station of the UMTS network the cell coverage size corresponds to the femto cell.
  • a 3GPP-based UE is connected to a mobile operator's network through a UTRAN wireless air interface.
  • Home eNodeB Base station of EPS network, cell coverage size corresponds to femto cell.
  • a 3GPP-based UE is connected to a mobile operator's network through an E-UTRAN wireless air interface.
  • NodeB It refers to the Home NodeB and Home eNodeB.
  • Home (e) NodeB Gateway A gateway that interfaces with one or more Home (e) NodeBs to be connected to the core network.
  • Home (e) NodeB Subsystem Home (e) NodeB gateway is a network structure that is implemented together, it manages wireless network by combining Home (e) NodeB and Home (e) NodeB gateway into one set.
  • the Home (e) NodeB Subsystem and the Home (e) NodeB both manage wireless networks and interoperate with the core network, so they can be thought of as an aggregate. Therefore, hereinafter, the terms Home (e) NodeB and Home (e) NodeB subsystem are used interchangeably.
  • Radio Access Network is a generic term for 3GPP wireless access such as RNC, NodeB, eNodeB.
  • HLR Home Location Register
  • HSS Home Subscriber Server
  • RANAP Abbreviation for Radio Access Network Application Part. It means the interface between RAN and the node (MME / SGSN / MSC) in charge of control of core network.
  • CSG Closed Subscriber Group
  • e Refers to a specific membership group based on subscriber information in order to allow access only to user terminals allowed in a cell of a NodeB.
  • NodeB operates in the same way as a normal cell (normal cell, non-CSG cell) without the concept of CSG. That is, it works like a normal (e) NodeB.
  • NodeB operates as a CSG cell. It refers to operating in a manner that allows access to only user terminals allowed in the cell. That is, only a terminal having authority for specific CSG IDs supported by Home (e) NodeB can be accessed.
  • Hybrid access mode Home (e) NodeB operates as a CSG cell, but allows access to non-CSG subscribers. It is possible to provide a Home (e) NodeB service by allowing access to a user terminal having a specific CSG ID that can be supported in a corresponding cell, and the UE without CSG authority operates in a manner that allows access.
  • CSG cell As part of a PLMN cell, the CSG cell can only access members of the CSG group. To this end, the CSG cell broadcasts a CSG ID. CSG cells sharing the same ID may be identified or managed as a group for mobility management and billing.
  • CSG ID An identifier broadcast by the CSG cell, used to facilitate access of an authenticated member of the CSG.
  • the CSG ID is unique only within one PLMN.
  • Allowed CSG list A list containing CSG identification information of CSGs to which a subscriber belongs, and is stored in the network and the UE.
  • Tracking Area This is a basic unit for tracking the location of the UE 100 operating in idle mode. That is, it is a basic unit for location registration of the UE. This specific area ID is called a Tracking Area Identity (TAI).
  • TAI Tracking Area Identity
  • the terminal may simultaneously register the location to several TAs, and in this case, manage the TAI list.
  • TAI LIST A set of location information, that is, (e) NodeB or Home (e) NodeB where location registration is performed on the HSS or HLR through the MME according to the location movement of the UE.
  • PCC Policy and Charging Control: refers to the operation of operator policy and billing.
  • PCRF Policy and Charging Rule Function
  • FIG. 4 is an exemplary diagram illustrating a structure of a network including a home (e) NodeB.
  • the core network 500 includes an MME 510, a Serving Gateway (S-GW) 520, an SGSN 560, and a Packet Data Network Gateway or PDN (P-GW). Gateway 530.
  • the core network 500 may further include a PCRF 540 and an HSS 590.
  • FIG. 4 (a) shows a Home NodeB 310 by UTRAN (UMTS Terrestrial Radio Access Network) and a Home eNodeB 320 by E-UTRAN (Evolved-UTRAN).
  • the Home NodeB 310 by the UTRAN is connected to the SGSN 560 through a gateway 350.
  • the Home eNodeB 320 by the E-UTRAN is connected to the MME 510 and the S-GW 520.
  • a control signal is transmitted to the MME 510 and a user data signal is transmitted to the S-GW 520.
  • a gateway 350 may exist between the Home eNodeB 320 and the MME 510 by the E-UTRAN.
  • FIG. 5 is an exemplary diagram illustrating an interface between a Home (e) NodeB 300 and an MME 510 illustrated in FIG. 4 as a protocol stack.
  • the Home eNodeB 300 and the MME 510 are each composed of a first layer (physical layer), a second layer (media access control layer), and a third layer (IP) layer. ), Signaling Control Transmission Protocol (SCTP), and S1 Application Protocol (S1-AP).
  • first layer physical layer
  • second layer media access control layer
  • IP third layer
  • SCTP Signaling Control Transmission Protocol
  • S1-AP S1 Application Protocol
  • the S1-AP is an application layer protocol between the Home eNodeB 300 and the MME 510.
  • the SCTP ensures delivery of a signaling message between the Home eNodeB 320 and the MME 510.
  • FIG. 6 shows a structure and an interface of a mobile communication network.
  • the interface is as follows.
  • S1-MME Interface for control plane protocol between E-UTRAN and MME.
  • S1-U The interface between the E-UTRAN and the serving gateway for the bearer user plane and the path switched during handover.
  • S3 Enable the exchange of user and bearer information for mobility in the Idle and / or active states.
  • S4 Enables control and mobility support between the GPRS core and the 3GPP anchor functionality of the serving gateway. It also provides user plane tunneling when the tunnel is not configured.
  • S5 Enable tunneling and management of the user plane between the serving gateway and the PDN gateway. It may be used to reassign the serving gateway as the UE is moved.
  • S6a Enable the transmission of subscriber and authentication data needed to authenticate (authorize / authorize) the evolved network system.
  • Gx Used to transfer policy and charging rules from PCRF to PCEF.
  • S12 Interface between UTRAN and serving gateway for user plane tunneling when tunnel is established.
  • the packet data network may be a public external private or private packet data network, or may be an internal provider packet data network.
  • Rx Interface between AF and PCRF.
  • FIG. 7 illustrates a process of attaching, ie, connecting, a UE to a network
  • FIG. 8 illustrates a protocol stack between the UE 100, the Home (e) NodeB 300, and the MME 510.
  • 9 shows the protocol stack between the MME 510 and the HSS 590.
  • the UE 100 transmits an Attach Request message to the Home (e) NodeB 300.
  • the attach request message is a message transmitted by the UE when initially attaching, such as when the UE is powered on, roaming, or handovers.
  • the Home (e) NodeB 300 may receive the attach request message and transmit the received attach request message to the MME 510.
  • the Attach request message transmitted to the MME 510 is transmitted through the S1-AP protocol on the S1-MME interface.
  • the UE 100 performs an authentication procedure with the HSS 550.
  • the MME 510 requests the HSS 550 to update the location of the UE 100 as necessary (S103).
  • the MME 510 receives a location update response message.
  • the location update message includes subscriber information of the UE (100).
  • the subscriber information is received via the S6a interface, the subscriber information is received via the Diameter protocol.
  • the MME 510 establishes a tunnel with the S-GW 520 and the P-GW 530.
  • the MME 510 transmits a session creation request message, for example, a Create Session Request message, to the S-GW 520.
  • the S-GW 520 transmits the received Create Session Request message to the P-GW 530.
  • the P-GW 530 optionally performs a PCRF 540 and a PCRF Interaction procedure.
  • the P-GW 530 may obtain a network operator policy through a PCRF Interaction procedure.
  • the P-GW 530 transmits a bearer creation response message, eg, a Create Session Response message, to the S-GW 520.
  • a bearer creation response message eg, a Create Session Response message
  • the TEID is a parameter that serves as an address for transmitting and receiving data.
  • the session creation response message may include the aforementioned network operator policy.
  • the P-GW 530 may transmit the generated data to the S-GW 520 through the generated bearer.
  • the S-GW 520 forwards the session creation response message, eg, Create Session Response message, to the MME 510.
  • the session creation response message includes the TEID of the S-GW.
  • the MME 510 includes an attach approval message, for example, an Attach Accept message, in an S1-AP based initial context setting message, for example, an Initial Context Setup message, and transmits it to the Home (e) NodeB 300.
  • an attach approval message for example, an Attach Accept message
  • an S1-AP based initial context setting message for example, an Initial Context Setup message
  • the attach grant message triggers radio bearer setup between the Home (e) NodeB 300 and the UE 100.
  • the Attach accept message is delivered via the S1-AP protocol on the S1-MME interface.
  • the Home (e) NodeB 300 and the UE 100 perform an RRC connection procedure.
  • the Home (e) NodeB 300 transmits an initial context setup response message to the MME 510.
  • the UE 100 transmits an attach complete message, for example, an Attach Complete message, to the Home (e) NodeB 300.
  • the Home (e) NodeB 300 transmits an attach complete message, for example, an Attach Complete message, to the MME 510. As a result, a tunnel is established between the UE 100 and the S-GW 520.
  • the attach complete message includes the TEID of the Home (e) NodeB 300.
  • the UE 100 may transmit its uplink data to the S-GW 520 through the Home (e) NodeB 300.
  • the MME 510 transmits a bearer modification request message, for example, a Modify Bearer Request message, to the S-GW 520 in order to modify the established session, that is, the bearer.
  • the bearer modification request message includes the TEID of the Home (e) NodeB 300.
  • the S-GW 520 transmits the bearer modification request message to the P-GW 530, and the P-GW 530 transmits a response message, for example, an Update Bearer Response message. Then, the S-GW 520 transmits the response message to the MME 520.
  • the S-GW 520 transmits downlink data to the UE 100 through the Home (e) NodeB 300.
  • FIG. 10 illustrates an interface in a scenario in which the terminal roams to the visited network, but the service of the service provider in the home network continues to use the service of the user plane.
  • a description will be given focusing on an interface different from that of FIG. 6.
  • S8 An interface providing a user plane and a control plane between the serving network, that is, the serving gate in Visted-PLMN and the home network, that is, the PDN gateway in Home-PLMN.
  • FIG. 11 illustrates an interface in a scenario in which a terminal roams into a visited network but wants to continue to use a service of an operator in a home network, when data of a user plane is a home network.
  • FIGS. 8 (a) and 8 (b) the application functions are divided into FIGS. 8 (a) and 8 (b) according to whether they are in the home network or the visited network.
  • the data of the user plane is not transmitted from the home network to the terminal in two cases, but is transmitted from the visited network to the terminal.
  • S9 Interface for exchanging policy and audit control information between Home-PCRF and Visited-PCRF.
  • Rx The interface between the application function (AF) and the PCRF.
  • the MME 510 in the visited network should acquire subscriber information from the HSS 590 in the home network of the UE 100. do. CSG related information may be included in the subscriber information.
  • CSG Closed Subscriber Group
  • the Home (e) NodeB 300 operates in the Closed Subscriber Group (CSG) mode
  • the obtained CSG information may be used to determine whether to accept or reject the attach or location update process.
  • LTE and EPC have slightly different technologies depending on their release version.
  • operators can build different release versions of equipment, and thus HSS in the home network.
  • Some of the subscriber information obtained from 590 may be incompatible in the visited network.
  • the release version of the home network does not support the CSG service as Rel-7, but the visited network supports the CSG service
  • a UE a subscriber in the home network, roams to the visited network
  • the UE Since there is no CSG-related information in the HSS in the home network, the UE cannot receive CSG-related services in the visited network.
  • a first operator has established a Rel-7 network
  • a second operator having a roaming agreement with the first operator has established a Rel-8 network.
  • the subscriber UE of the first provider roams to the network of the second provider, the UE cannot receive CSG service in the network of the second provider.
  • CSG services are likely to be provided in enterprise networks such as Starbucks or shopping malls, but there is no opportunity to provide useful services that can be opened to roaming subscribers.
  • VCSG CSG service
  • the MME 510 may not properly provide the CSG service to the roaming UE.
  • the information contained in the subscriber information obtained from the HSS of the home network is said to have membership for CSG IDs 1,3,4, while the CSG related information obtained from the visited network is CSG ID 2,4,5. If it is stored that there is a membership for the MME 510 does not know which CSG ID the roaming UE actually has a membership.
  • the MME ( 510 may not correctly determine whether to provide a CSG service for the roaming UE.
  • the visited network may not receive the CSG service.
  • an MME in a visited network receives an attach request message, it obtains subscriber information from an HSS in a home network, and if there is no CSG related information in the subscriber information, the MME notifies the roaming UE of the attach rejection.
  • the UE accesses to the home (e) NodeB in the visited network can reduce the load of the macro base station (e) NodeB, it is effective to provide CSG service by autonomously managing the CSG membership in the visited network. Can be.
  • the MME 510 in the visited network receives the attach request message from the roaming UE, for example, CSG related information in the subscriber information obtained from the HSS in the home network (any CSG ID1, Expiration-Date valid). If there is a conflict between the CSG related information (any CSG ID1, Expiration-Date not valid) managed autonomously in the visited network, the MME 510 may not process correctly.
  • the MME 510 in the visited network determines whether the roaming UE can access the Home (e) NodeB operating as a CSG using one of the following information.
  • H-PLMN home network
  • CSG information authorized by HPLMN CSG ID and expiration time, etc.
  • the level (to what extent the HPLMN permits the VCSG feature authorization) (e.g. authorization based only on authorization or only on local CSG-related information within the visited network) to the extent that it does not conflict with HPLMN information;
  • HPLMN home network
  • VCSG functionality e.g. subscriber / UE in a specific group
  • FIG. 12 illustrates a procedure of a UE roaming to a visited network according to an embodiment.
  • the HSS 590 in the home network of the roaming UE 100, the Home (e) NodeB 300 and the MME 510 in the visited network are shown.
  • a local VCSG server 550 is included in the visited network.
  • the local VCSG server 550 manages CSG membership autonomously in the visited network.
  • Such a local VCXG server 550 may exist alone on the visited network or may be included in an HSS / HLR in the visited network. Alternatively, the local VCXG server 550 may be included in another node in the visited network.
  • the local VCSG server 550 may transmit local CSG related information to the UE 100.
  • it can be delivered using OMA DM or OTA.
  • the local CSG related information may include at least one of the following information.
  • Table 1 -CSG information (CSG ID and expire time, etc.) authorized (provided) by the visiting network, ie VPLMN-Home network, i.e. the level (to what extent the HPLMN permits VCSG functionality), does not conflict with HPLMN information Permit only to the extent that they do not, or permit use of all local CSG information)-the granularity that the home network, ie HPLMN, authorizes VCSG functionality, e.
  • the local VCSG server 550 is a priority-related information, such as VPLMN- for when there is a mismatch between the CSG related information obtained from the HSS from the local VCSG server 550 in the visited network and the local CSG related information.
  • VCSG-configuration information may be provided to the UE 100.
  • the priority related information for example, information on the VPLMN-VCSG-configuration information, will be described later.
  • the UE 100 transmits an Attach Request message or a Tracking Area Update (TAU) message to the Home (e) NodeB 300.
  • the attach request message is a message transmitted by the UE when initially attaching, such as when the UE is powered on, roaming, or handovers.
  • the attach request message or the TAU message is local CSG-related information acquired by the UE, CSG-related information in a home network (ie, HPLMN) (ie, information previously received by the UE from a local VCSG server or to a Home / Visited network).
  • the Home (e) NodeB 300 receives the attach request message and receives the attachment.
  • An attach request message may be transmitted to the MME 510.
  • MME 510 in the visited network obtains subscriber information of the UE from HSS 590 in the home network.
  • the subscriber information may include roaming agreement information as well as CSG related information.
  • the roaming agreement information may include at least one or more of the following information.
  • the home network i.e., H-PLMN
  • CSG information CSG ID and expiration time, etc.
  • Priority between CSG information for example, where there is a conflict between two information, especially when there is a possibility of receiving both CSG-related information from the network, namely HPLMN and the visited network, VHPLM: for example, always HPLMN information first, always VPLMN Information first, short expiration time first, long expiration time first, etc.-the level (to what extent the HPLMN permits VCSG functionality) by the home network, i.e., to the extent that it does not conflict with HPLMN information Permit only based on only local CSG-related information in the visited network or granularity in which the home network, ie, HPLMN, grants VCSG functionality, e.g.
  • NodeB operator which are stored in MME in pre-configuration form, or are stored in Home (e) NodeB / Home ( e) available from NodeB GW)
  • the MME 510 may access the local VCSG server 550 in the visited network to check whether there is an update on the local CSG related information included in the attach request message.
  • the MME 510 performs access control on the attach request of the roaming UE based on the information obtained as described above.
  • the information obtained according to the above is enumerated again for the purpose of understanding.
  • the access mode of the Home (e) NodeB one of open access mode, closed subscriber group mode and mixed access mode
  • Information can be delivered in either direct indication or implicit form.
  • CSG information authorized by VPLMN CSG ID and expire time, etc.
  • -Home network i.e., HPLMN
  • HPLMN the level for VCSG feature authorization
  • HPLMN home network
  • VCSG functionality e.g. subscriber / UE in a specific group
  • the MME may assign the priority. Access control is performed based on the related information, eg, VPLMN-VCSG-configuration information.
  • the MME 510 prioritizes the CSG information included in the subscriber information received from the home network (HPLMN) according to the priority information, for example, VPLMN-VCSG-configuration.
  • access control is performed by giving priority to local CSG information defined in the visited network (VPLMN).
  • the MME 510 may perform access control according to the priority related information defined in the CSG related information received from the HSS 590. Alternatively, when there is a conflict between the obtained information, the MME 510 may perform access control according to the priority related information defined in the local CSG related information.
  • the MME 510 transmits a message for accepting the attach request / TAU request, for example, an Attach Accept / TAU Accept message, or transmits the attach request / TAU request according to a result of performing the access control.
  • a reject message for example, an Attach Reject / TAU Reject message, may be transmitted to the Home (e) NodeB 300.
  • the Home (e) NodeB 300 transmits the received message to the UE (100).
  • the local VCSG server 550 may transmit CSG related information to the UE 100.
  • CSG related information can be delivered using OMA DM or OTA.
  • FIG. 13 illustrates the procedure shown in FIG. 12 in more detail.
  • the local VCSG server 550 may transmit local CSG related information to the UE 100.
  • it can be delivered using OMA DM or OTA.
  • the local CSG related information may include at least one of the following information.
  • the local VCSG server 550 is a priority-related information, such as VPLMN- for when there is a mismatch between the CSG related information obtained from the HSS from the local VCSG server 550 in the visited network and the local CSG related information.
  • VCSG-configuration information may be provided to the UE 100.
  • the VPLMN-VCSG-configuration may include the following information.
  • permission VCSG-ALLOWED or NOT-VCSG-ALLOWED or VCSG-PART-ALLOWED- VCSG-ALLOWED: indicates that the visited network, ie VPVCN, is authorized to use the VCSG feature-NOT-VCSG-ALLOWED: the visit VCSG-PART-ALLOWED indicates that the granularity using the VCSG function is not in PLMN units, and that the VCSG function is allowed for any particular list or user only.
  • Action type static or dynamic- VCSG information received from home network (HPLMN) and visited network (VPLMN) In case of inconsistency, indicate whether the MME's criteria are statically pre-configured or can be changed dynamically.
  • the UE 100 attaches an Attach Request message to the Home (e) NodeB 300.
  • the attach request message is a message transmitted by the UE when initially attaching, such as when the UE is powered on, roaming, or handovers.
  • the attach request message or the TAU message may be comprehensive without distinguishing the local CSG-related information obtained by the UE, the CSG-related information of the HPLMN (that is, the terminal previously received from the local VCSG server or the information received from the Home / Visited network). CSG information) and one or more of the priority information.
  • the Home (e) NodeB 300 may receive the attach request message and transmit the received attach request message to the MME 510.
  • the Home (e) NodeB 300 includes its configuration information, specifically general configuration information, and connection mode information (open connection mode, closed connection mode, mixed connection mode) in the received attach request message.
  • connection mode information open connection mode, closed connection mode, mixed connection mode
  • the Home (e) NodeB 300 includes the access mode information in the attach request message and transmits the same, so that the MME 510 acquires the access mode information is called a direct acquisition method.
  • the MME 510 may acquire the access mode information through an indirect acquisition method.
  • the Attach request message transmitted to the MME 510 is delivered through the S1-AP protocol on the S1-MME interface.
  • the UE 100 performs an authentication procedure with the HSS 550.
  • the MME 510 requests the HSS 550 to update the location of the UE 100 as needed.
  • the MME 510 receives a location update response message.
  • the location update message includes subscriber information of the UE (100).
  • the subscriber information is received through the S6a interface, as can be seen with reference to Figure 9, the subscriber information is received via the Diameter protocol.
  • the subscriber information may include one or more of CSG related information and roaming agreement information.
  • the CSG related information may include information on a CSG ID and an expiration time.
  • the roaming agreement information may include at least one or more of the following information.
  • the home network i.e., H-PLMN
  • CSG information CSG ID and expiration time, etc.
  • Priority between CSG information for example, where there is a conflict between two information, especially when there is a possibility of receiving both CSG-related information from the network, namely HPLMN and the visited network, VHPLM: for example, always HPLMN information first, always VPLMN Information first, short expiration time first, long expiration time first, etc.-the level (to what extent the HPLMN permits VCSG functionality) by the home network, i.e., to the extent that it does not conflict with HPLMN information Permit only based on only local CSG-related information in the visited network or granularity in which the home network, ie, HPLMN, grants VCSG functionality, e.g.
  • the above location information for example, VPLMN-VCSG-configuration, may be included in the location update response message received from the HSS 550.
  • the MME 510 may access a local VCSG server 550 in the visited network in order to check whether there is an update on local CSG related information included in the attach request message.
  • the MME 510 performs access control on the attach request of the roaming UE based on the information obtained as described above.
  • the access control may be performed before confirming the update of the local CSG related information to the local VCSG server 550.
  • the MME 510 may accept or reject the attach request / TAU request according to a result of performing the access control.
  • the MME (510) is CSG related information in the subscriber information received from the HSS (590), and Home ( e) Access control may be performed based on the access mode information of the NodeB 300 and the local CSG information.
  • the MME 510 may perform access control according to the above-described priority information, for example, contents included in the VPLMN-VCSG-configuration.
  • the MME 510 prioritizes the CSG information included in the subscriber information received from the home network (HPLMN) according to the priority information, for example, VPLMN-VCSG-configuration. Or, access control is performed by giving priority to CSG information received from a visited network (VPLMN).
  • HPLMN home network
  • VPLMN-VCSG-configuration access control is performed by giving priority to CSG information received from a visited network (VPLMN).
  • the MME 510 may perform access control according to the priority related information defined in the CSG related information received from the HSS 590. Alternatively, when there is a conflict between the obtained information, the MME 510 may perform access control according to the priority related information defined in the local CSG related information.
  • the MME 510 While accepting the connection of the UE (100), it may provide a differentiated quality of service.
  • the MME 510 accepts the attach request / TAU request according to a result of performing the access control, the MME 510 is an S-GW 520 and a P-GW. 530 and the tunnel is set up.
  • the MME 510 transmits a session creation request message, for example, a Create Session Request message, to the S-GW 520. Then, the S-GW 520 transmits the received Create Session Request message to the P-GW 530.
  • the P-GW 530 optionally performs a PCRF 540 and a PCRF Interaction procedure.
  • the P-GW 530 may obtain a network operator policy through a PCRF Interaction procedure.
  • the PCRF may store the priority information, for example, VPLMN-VCSG-configuration. Accordingly, the P-GW 530 may obtain the priority information through a PCRF Interaction procedure.
  • the P-GW 530 transmits a bearer creation response message, eg, a Create Session Response message, to the S-GW 520.
  • a bearer creation response message eg, a Create Session Response message
  • the TEID is a parameter that serves as an address for transmitting and receiving data.
  • the session creation response message may include the aforementioned network operator policy.
  • the session creation response message may include the priority information.
  • the P-GW 530 may transmit the generated data to the S-GW 520 through the generated bearer.
  • the S-GW 520 forwards the session creation response message, eg, Create Session Response message, to the MME 510.
  • the session creation response message includes the TEID of the S-GW.
  • the session creation response message may include the priority information.
  • the MME 510 may perform the access control.
  • access control may be performed according to the priority information for inconsistency between the CSG related information.
  • the MME 510 includes an attach grant message, for example, an Attach Accept message, in an S1-AP based initial context setup message, for example, an Initial Context Setup message, and transmits it to the Home (e) NodeB 300.
  • an attach grant message for example, an Attach Accept message
  • an S1-AP based initial context setup message for example, an Initial Context Setup message
  • the Attach accept message is transmitted through the S1-AP protocol on the S1-MME interface, as can be seen with reference to FIG.
  • the attach grant message triggers radio bearer setup between the Home (e) NodeB 300 and the UE 100.
  • the attach accept message may include a result of the access control.
  • the result of the access control may include connection type information.
  • the connection type information may include one of two pieces of information shown in Table 2 below.
  • Table 6 (1) Acceptance as a CSG member Home (e) If the NodeB is operating in closed connection mode or mixed connection mode, and the UE requesting connection is a CSG member that can be serviced by the corresponding Home (e) NodeB, the UE is CSG (2) Accept as a non-CSG member Home (e) NodeB operates in mixed connection mode, and if the requesting UE is not a CSG member provided by the corresponding Home (e) NodeB, Indicates that the UE requesting access is accepted as a non-CSG member.
  • the Home (e) NodeB 300 and the UE 100 perform an RRC connection procedure.
  • the Home (e) NodeB 300 transmits an initial context setup response message to the MME 510.
  • the UE 100 transmits an attach complete message, for example, an Attach Complete message, to the Home (e) NodeB 300.
  • the Home (e) NodeB 300 transmits an attach complete message, for example, an Attach Complete message, to the MME 510. As a result, a tunnel is established between the UE 100 and the S-GW 520.
  • the attach complete message includes the TEID of the Home (e) NodeB 300.
  • the UE 100 may transmit its uplink data to the S-GW 520 through the Home (e) NodeB 300.
  • the MME 510 may perform the aforementioned access control after receiving the attach complete message, for example, an Attach Complete message.
  • the MME 510 transmits a bearer modification request message, for example, a Modify Bearer Request message, to the S-GW 520 in order to modify the established session, that is, the bearer.
  • the bearer modification request message includes the TEID of the Home (e) NodeB 300.
  • the S-GW 520 transmits the bearer modification request message to the P-GW 530, and the P-GW 530 transmits a response message, for example, an Update Bearer Response message. Then, the S-GW 520 transmits the response message to the MME 520.
  • the S-GW 520 transmits downlink data to the UE 100 through the Home (e) NodeB 300.
  • the Home (e) NodeB (300) provides a service to the UE (100).
  • the Home (e) NodeB (300) according to the received connection type information, 'Radio Resource Control (Radio Resource Control), such as rate control (diversion of establishment connection) or the like (Radio Resource Control) ) Function. For example, if there is not enough resources of the Home (e) NodeB, the Home (e) NodeB 300 sets the QoS of the UE corresponding to the non-CSG member to be lower than the QoS of the UE corresponding to the CSG member. Can be. In addition, the Home (e) NodeB 300 may set the priority of data to be transmitted to the UE corresponding to the non-CSG member when scheduling data to be low.
  • Radio Resource Control Radio Resource Control
  • rate control conversion of establishment connection
  • Radio Resource Control Radio Resource Control
  • the Home (e) NodeB 300 is no longer able to provide the service to the UE 100, such as when the CSG membership of the UE 100 expires, or terminates, another Home (e The UE 100 may be handed over to a NodeB cell (ie, another CSG cell) or a (e) NodeB cell (or a non-CSG cell) in charge of a macro cell.
  • a NodeB cell ie, another CSG cell
  • e NodeB cell (or a non-CSG cell) in charge of a macro cell.
  • the Home (e) NodeB 300 instead of stopping the service to replace the CSG member another Home (e) NodeB cell ( That is, the UE 100 may be handed over to (e) NodeB cell (or non-CSG cell) in charge of another CSG cell) or macro cell.
  • FIG. 13 illustrates the MME 510 and the S-GW 520 based on the EPC
  • the concept of the present invention may be applied to the UMTS.
  • both the MME 510 and the S-GW 520 may be integrated into SGSN. Accordingly, the signal transmission and reception between the MME 510 and the S-GW 520 shown in FIG. 7 is not performed, and both are processed in the SGSN.
  • FIG. 14 illustrates a procedure of a UE roaming to a visited network according to another embodiment.
  • the MME 510 acquires only CSG information from the HSS 590 in the home network, and does not acquire roaming agreement information and information on whether to allow VCSG.
  • Roaming agreement information and information on whether to allow VCSG is predefined in the local VCSG server 550, and if it is determined that the UE roams, the MME 510 obtains from the local VCSG server 550 .
  • the local VCSG server 590 is allowed to roam agreement information and VCSG It does not transmit information on whether or not to the MME 510, and only informs that the CSG service is not allowed.
  • 15 illustrates a procedure of a UE roaming to a visited network according to another embodiment.
  • the MME 510 previously stores one or more of information on whether a VCSG is allowed and local CSG information.
  • the MME 510 stores the UE 100 has previously accessed the visited network.
  • the MME 510 has a context related to the UE, and may include one or more of the above information on whether the VCSG is allowed and local CSG information in the context.
  • the MME 510 may recycle one or more of information on whether the VCSG is allowed and local CSG information. Or to the local CSG server 550 to check for recent updates. If there has been a recent update or an expiration time for the stored information has elapsed, the MME can obtain the updated information from the local CSG server.
  • the MME 510 may store information regarding this priority in advance.
  • 16 is a block diagram illustrating an MME 510 according to the present invention.
  • the MME 510 includes a storage unit 511, a controller 512, and a transceiver 513.
  • the storage means 511 stores the method shown in FIGS. 4 to 15.
  • the controller 512 controls the storage means and the transceiver.
  • the controllers execute the methods stored in the storage means, respectively.
  • the controller transmits the aforementioned signals through the transceiver.

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

Abstract

La présente invention concerne un procédé qui permet de contrôler un accès dans un serveur responsable d'un plan de commande dans un réseau visité. Le procédé de contrôle d'accès comprend une étape dans laquelle le serveur responsable reçoit depuis une station de base ("(e)NodeB") domestique un message de demande d'accès ou un message de demande de mise à jour par un terminal itinérant. La (e)NodeB domestique peut fonctionner en tant que groupe fermé d'abonnés (CSG) ou en mode à accès mixte. Le message de demande d'accès ou le message de demande de mise à jour peut comprendre une ou plusieurs informations associées à un CSG local définies dans le réseau visité ou des informations associées à un CSG dans un réseau domestique. Le procédé de contrôle d'accès comprend également les étapes qui consistent : à déterminer l'existence d'un problème entre les informations associées à un CSG dans les informations d'abonnés du terminal itinérant obtenues à partir d'un serveur d'informations d'abonnés situé dans le réseau domestique du terminal itinérant, et les informations associées à un CSG local définies dans le réseau visité ; en présence d'un problème, à contrôler l'accès au moyen d'informations de priorité précédemment définies par le serveur responsable ; et de la part du serveur responsable, à transmettre à la (e)NodeB domestique un message d'acceptation ou un message de refus pour l'accès au message de demande de mise à jour, en fonction du contrôle d'accès.
PCT/KR2012/001158 2011-03-30 2012-02-16 Procédé pour obtenir un csg local et contrôler l'accès dans un serveur responsable d'un plan de commande dans un réseau de communication mobile WO2012134057A2 (fr)

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US14/006,413 US9301105B2 (en) 2011-03-30 2012-02-16 Method for providing local CSG and controlling access in server in charge of control plane in mobile communication network
US15/059,938 US9872170B2 (en) 2011-03-30 2016-03-03 Method for providing local CSG and controlling access in server in charge of control plane in mobile communication network

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US201161469106P 2011-03-30 2011-03-30
US61/469,106 2011-03-30
KR10-2011-0141453 2011-12-23
KR1020110141453A KR101884348B1 (ko) 2011-03-30 2011-12-23 이동통신 네트워크 내에서 제어 평면을 담당하는 서버에서 로컬 ｃｓｇ 제공 및 액세스 제어 방법

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US15/059,938 Continuation US9872170B2 (en) 2011-03-30 2016-03-03 Method for providing local CSG and controlling access in server in charge of control plane in mobile communication network

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100120259A (ko) * 2009-05-05 2010-11-15 엘지전자 주식회사 이동통신 네트워크 내에서 제어 평면（Ｃｏｎｔｒｏｌ Ｐｌａｎｅ）을 담당하는 서버 및 커넥션 설정을 제어하는 방법
KR20110003228A (ko) * 2009-07-03 2011-01-11 삼성전자주식회사 무선 통신 시스템에서 사용자 액세스 제어 방법 및 장치
KR20110012126A (ko) * 2009-07-29 2011-02-09 삼성전자주식회사 무선 통신 시스템에서 사용자 액세스 제어 방법 및 장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100120259A (ko) * 2009-05-05 2010-11-15 엘지전자 주식회사 이동통신 네트워크 내에서 제어 평면（Ｃｏｎｔｒｏｌ Ｐｌａｎｅ）을 담당하는 서버 및 커넥션 설정을 제어하는 방법
KR20110003228A (ko) * 2009-07-03 2011-01-11 삼성전자주식회사 무선 통신 시스템에서 사용자 액세스 제어 방법 및 장치
KR20110012126A (ko) * 2009-07-29 2011-02-09 삼성전자주식회사 무선 통신 시스템에서 사용자 액세스 제어 방법 및 장치

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