WO2010150785A1 - 移動通信システム、加入者情報管理装置、位置管理装置及びホーム基地局 - Google Patents
移動通信システム、加入者情報管理装置、位置管理装置及びホーム基地局 Download PDFInfo
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- WO2010150785A1 WO2010150785A1 PCT/JP2010/060563 JP2010060563W WO2010150785A1 WO 2010150785 A1 WO2010150785 A1 WO 2010150785A1 JP 2010060563 W JP2010060563 W JP 2010060563W WO 2010150785 A1 WO2010150785 A1 WO 2010150785A1
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- base station
- mobile terminal
- home base
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/08—Mobility data transfer
- H04W8/082—Mobility data transfer for traffic bypassing of mobility servers, e.g. location registers, home PLMNs or home agents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]
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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 the like.
- 3GPP The 3rd Generation Generation Partnership Project
- EPS Evolved Packet System
- HeNB Home eNodeB
- the home base station constructs a small radio cell called a femto cell and accommodates a UE (User Equipment) using the same radio access technology as that of a normal base station. And it can connect to the core network of a mobile communication system via a broadband line, and can relay the communication data of the accommodated UE.
- a UE User Equipment
- the home base station uses a broadband line as a backhaul and can be installed by a general user, the coverage area of the mobile communication system, particularly the indoor coverage area can be easily expanded.
- the cell radius is small and the cell can be monopolized with a small number of users, the communication speed and frequency utilization efficiency can be expected to be improved as compared to an outdoor macrocell base station that must be shared by many users.
- Non-Patent Document 2 defines a local IP access function as a functional requirement of the home base station.
- Local IP access provides a UE with connectivity to a network directly connected to a home base station such as a home network (hereinafter referred to as “home network”).
- home network a home network
- the local IP access is connected to the home network.
- home network connection service Connected to other information terminals (printers, etc.) from the UE (hereinafter referred to as “home network connection service”), or connected to the Internet without going through the core network of the mobile communication system (hereinafter referred to as this).
- Internet connection service Can be called "Internet connection service").
- a local area communication interface such as a wireless LAN has to be installed in the UE.
- the home base station functions as a gateway between different types of radio access technologies by using local IP access, even a UE equipped with only a cellular communication interface can communicate with other communication terminals in the home network. can do.
- the home base station can grant an access right only to a specific UE from its usage form, and three access modes called closed, open, and hybrid are defined.
- Each home base station is assigned a group identifier called CSGID (Closed Subscriber Group Identification), and in the closed mode, it is possible to set which UE is permitted to connect for each CSGID.
- CSGID Cell Subscriber Group Identification
- the hybrid mode is a combination of the closed mode and the open mode, and can preferentially handle the communication of the UE to which the access right in the closed mode is granted.
- local IP access it is stipulated as a requirement to determine whether or not the function can be used based on user subscription information. Furthermore, when the UE is connected to the home base station, it is defined as a functional requirement that local IP access and connection to the core network can be used simultaneously.
- Non-Patent Document 3 shows architecture candidates for realizing a home base station.
- Non-Patent Document 4 in order to realize the local IP access function of the home base station, when the home base station is communication data to the Internet or the home network according to the destination of the communication data received from the UE Proposed to transfer communication data without going through the core network of the mobile communication system.
- 3GPP TS23.401 General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access 3GPP TS 22.220 3GPP TR 23.830 3GPP S2-093803 (Local IP access principles for single PDN connection solutions)
- GPRS General Packet Radio Service
- Non-Patent Document 3 access control in the home base station is determined by the above-described three access modes and subscription information for determining whether or not the local IP access function can be used. However, considering the usage scenario of the home base station, it is desirable that the home base station owner or the mobile communication carrier can set a finer access authority as described below.
- an advertisement distribution server that distributes advertisement information and the like is installed in the home network, and only the home network connection service using local IP access is permitted for visiting customers.
- the advertisement distribution server but not providing an Internet connection service.
- only the access control based on the access mode and the subscription information described above does not have a mechanism for individually setting access authority for a plurality of services that can be used for local IP access, so that the above usage scenario can be realized. There was a problem that it was not possible.
- Non-Patent Document 1 the home base station is introduced as an extension to the existing mobile communication system, and changes to the current specifications are required to be kept to a minimum. Therefore, the specific means for solving the above-described problem must be realized with the minimum function expansion for the EPS defined in Non-Patent Document 1.
- the present invention has been made in view of such circumstances, the purpose of which is that the home base station owner or the mobile communication carrier for a plurality of services provided using the local IP access function of the home base station, An access authority can be set for each service, and a home base station, a mobile communication system, and the like that can transfer communication data and select a communication path based on the set access authority are provided.
- the mobile communication system of the present invention includes a home network having a home base station to which a mobile terminal is connected, and a core network to which a subscriber information management device, a location management device, and an access control device are connected.
- a mobile communication system connected via an external network wherein the subscriber information management device is associated with a mobile terminal identifier for identifying the mobile terminal, a group identifier for identifying a home base station,
- a subscription storage unit that stores service types that can be used by the mobile terminal as subscription information
- a location information update request receiving unit that receives a location information update request of the mobile terminal from the location management device, and the location
- the service type corresponding to the mobile terminal identifier included in the information update request is the subscription description.
- a position information response transmitter that transmits to the location management device included in the position information update response, characterized in that it comprises a.
- a home network having a home base station to which a mobile terminal is connected and a core network to which the subscriber information management device, the location management device and the access control device are connected via an external network.
- a subscription storage unit that stores, as subscription information, a service type that can be used via the home base station, and a location information update request reception unit that receives a location information update request of the mobile terminal from the location management device;
- a service type corresponding to a mobile terminal identifier included in the location information update request Extracted from tio down the storage unit, a position information response transmitter that transmits to the location management device included in the position information update response, characterized in that it comprises a.
- the service type that can be used by the mobile terminal included in the subscription information indicates whether the mobile terminal is permitted to connect to the Internet and whether to connect to the home network. It is characterized by that.
- the location management device of the present invention connects a home network having a home base station to which a mobile terminal is connected and a core network to which a subscriber information management device, a location management device and an access control device are connected via an external network.
- a location management apparatus included in the mobile communication system an attach request receiving unit for receiving an attach request including a mobile terminal identifier from the mobile terminal, and extracting the mobile terminal identifier from the attach request,
- a location information update request transmitting unit that transmits a location information update request including the location information update request to the subscriber information management device, and a location information update response including a service type that can be used by the mobile terminal from the subscriber information management device
- the service type is extracted from the location information update response receiving unit and the location information update response, and the available service is extracted. Based on the scan, characterized in that it comprises a determining attach request determination unit whether the attach request from the mobile terminal.
- the home base station of the present invention connects a home network having a home base station to which a mobile terminal is connected and a core network to which a subscriber information management device, a location management device and an access control device are connected via an external network.
- a mobile base station included in the mobile communication system an attach permission receiving unit that receives an attach permission including a service type from the location management device, and a service type for controlling communication of the mobile terminal
- a control unit that controls communication route selection for a connected mobile terminal from a packet filtering information storage unit that stores packet filtering information according to the service type, a service type included in the attach permission, and the packet filtering information And a control unit.
- the home base station of the present invention connects a home network having a home base station to which a mobile terminal is connected and a core network to which a subscriber information management device, a location management device and an access control device are connected via an external network. It is a home base station included in a mobile communication system, and includes a local IP access function possession notification unit that notifies the location management device that a local IP access function is provided.
- the home base station owner or a mobile communication business can perform access control on a service basis.
- 1 is a schematic diagram of a mobile communication system in a first embodiment. It is a block diagram of PGW in 1st Embodiment. It is a figure which shows the binding information of PGW in 1st Embodiment. It is a block diagram of SGW in 1st Embodiment. It is a block diagram of HSS in 1st Embodiment. It is a figure which shows an example of HSS subscription DB in 1st Embodiment. It is a block diagram of MME in 1st Embodiment. It is a figure which shows an example of MDB subscription DB in 1st Embodiment. It is a figure which shows an example of APN-IP address conversion DB of MME in 1st Embodiment.
- FIG. 1 is a diagram for explaining an outline of a mobile communication system 1 in the present embodiment.
- the mobile communication system 1 includes a core network and a home network, and the core network and the home network are interconnected via a broadband access network.
- the broadband access network is a wired access network that realizes broadband communication, and is constructed by, for example, ADSL or optical fiber.
- the present invention is not limited to this, and a wireless access network such as WiMAX may be used.
- PGW 10 Packet data GW
- SGW 20 Serving GW
- HSS 30 Home Subscriber Service
- MME 40 Mobility Management Entity
- GW 50 GW 50
- the PGW 10 is an access control device that is connected to an external PDN (Packet Data Network) such as the Internet, functions as a gateway that connects the core network and those PDNs, and transfers communication data of the UE 70 to the SGW 20. is there.
- PDN Packet Data Network
- the SGW 20 is a service control device that is connected to the GW 50 and transfers packets between the PGW 10 and the home base station 60. Note that the PGW 10 and the SGW 20 may be physically configured by the same node.
- the MME 40 is an entity that performs signaling, and is a location management device that leads the location management of the UE 70 and the establishment procedure of the EPS bearer.
- the EPS bearer is a logical path for transferring a user IP packet established between the home base station 60 and the SGW 20 for each UE. Note that the UE 70 can establish a plurality of EPS bearers.
- the GW 50 functions as a gateway between the home base station 60 installed in the home network and a device in the core network.
- the HSS 30 is a subscriber information management device that manages subscription data (subscriber information), performs user authentication, and notifies the MME 40 of subscription data of the UE 70.
- the subscription data stores subscriber service subscription information, a list of CSG IDs for which access is permitted, and the like.
- the home network includes a UE 70, an information terminal 80, and a home base station 60.
- the home network is interconnected with an external PDN via a broadband access network.
- the home base station 60 is a device that forms a femtocell and accommodates the UE 70 as a base station of 3GPP LTE (Long Term Evolution). It also functions as a home gateway in the home network and is connected to a broadband access network.
- 3GPP LTE Long Term Evolution
- UE 70 is a mobile communication terminal equipped with a 3GPP LTE communication interface, and is connected to home base station 60.
- the information terminal 80 is an information terminal connected to the home network, such as a printer or a network file server.
- the PGW 10 is connected to the control unit 100 by a transmission / reception unit 110, a packet transmission / reception unit 120, a storage unit 150, and a PMIP processing unit 160 via a bus.
- the control unit 100 is a functional unit for controlling the PGW 10.
- the control unit implements various processes by reading and executing various programs stored in the storage unit 150.
- the transmission / reception unit 110 is a functional unit that is wired to a router or a switch and transmits and receives packets.
- packets are transmitted and received by Ethernet (registered trademark) or the like generally used as a network connection method.
- the storage unit 150 is a functional unit that stores programs, data, and the like necessary for various operations of the PGW 10, and includes, for example, a semiconductor memory. In addition, the storage unit 150 stores binding information 152.
- the binding information 152 is information used for determining a transmission path for transferring the communication data to the UE 70 when the PGW 10 receives the communication data (packet) addressed to the UE 70.
- An example of the binding information is shown in FIG.
- the IP address prefix (hereinafter referred to as “HNP (Home Network Prefix)”) of the UE 70 and the transmission path to the SGW 20 (for example, “PMIP tunnel 1”) are recorded in association with each other. is doing.
- HNP Home Network Prefix
- PMIP tunnel 1 the transmission path to the SGW 20
- the packet transmitting / receiving unit 120 is a functional unit that transmits and receives specific data (packets). Data received from the upper layer is disassembled as a packet and transmitted. In addition, a function of passing the received packet to an upper layer is realized.
- the PMIP processing unit 160 is a functional unit for establishing a transfer path (referred to as a PMIP tunnel) used between the PGW 10 and the SGW 20.
- SGW 20 is connected to the control unit 200 by a transmission / reception unit 210, a storage unit 250, a bearer establishment processing unit 270, a packet transmission / reception unit 220, and a PMIP processing unit 260 via a bus. ing.
- the control unit 200 is a functional unit for controlling the SGW 20.
- the control unit 200 implements various processes by reading and executing various programs stored in the storage unit 250.
- the transmission / reception unit 210 is a functional unit that is wired to a router or a switch and transmits and receives packets.
- transmission / reception is performed by Ethernet (registered trademark) or the like generally used as a network connection method.
- the storage unit 250 is a functional unit that stores programs, data, and the like necessary for various operations of the SGW 20.
- the bearer establishment processing unit 270 is a functional unit that executes processing for establishing an EPS bearer.
- the packet transmitting / receiving unit 220 is a functional unit that transmits and receives specific data (packets). Data received from the upper layer is disassembled as a packet and transmitted. In addition, a function of passing the received packet to an upper layer is realized.
- the PMIP processing unit 260 is a functional unit for establishing a PMIP tunnel with the PGW 10.
- the HSS 30 is configured such that a transmission / reception unit 310 and a storage unit 350 are connected to a control unit 300 via a bus.
- the control unit 300 is a functional unit for controlling the HSS 30.
- the control unit 300 implements each process by reading and executing various programs stored in the storage unit 350.
- the transmission / reception unit 310 is a functional unit that is wired to a router or a switch and transmits and receives packets.
- transmission / reception is performed by Ethernet (registered trademark) or the like generally used as a network connection method.
- the storage unit 350 is a functional unit that stores programs, data, and the like necessary for various operations of the HSS 30. Furthermore, the storage unit 350 stores a subscription DB (database) 352 that stores subscriber information.
- DB subscription DB
- the subscription DB 352 has a UE identifier (for example, “UE1” generated from IMSI (International Mobile Subscriber Identify) or the like) for a UE managed by the mobile communication system 1, and the UE Using CSGID (for example, “CSGID2”) indicating a group identifier assigned to the home base station 60 to which access is permitted and local IP access, any service (for example, “Type 1 Internet connection service” and “Permitted” or “Not permitted” is stored as to whether the use is permitted for “Type 2 Home Network Connection Service”).
- UE1 generated from IMSI (International Mobile Subscriber Identify) or the like
- CSGID for example, “CSGID2”
- any service for example, “Type 1 Internet connection service” and “Permitted” or “Not permitted” is stored as to whether the use is permitted for “Type 2 Home Network Connection Service”.
- the owner of the home base station 60 or the operator of the mobile communication system 1 can access the subscription DB 352, and for each UE and which UE, for each CSG ID assigned to the home base station 60 that it owns. It is possible to set and change whether to grant appropriate access authority information.
- the control unit 300 provides information on the subscription DB 352 held by the storage unit 350 in response to a request from the MME 40.
- the control unit 400 is a functional unit for controlling the MME 40.
- the control unit 400 implements various processes by reading and executing various programs stored in the storage unit 450.
- the transmission / reception unit 410 is a functional unit that is wired to a router or a switch and transmits and receives packets.
- transmission / reception is performed by Ethernet (registered trademark) or the like generally used as a network connection method.
- the storage unit 450 is a functional unit that stores programs, data, and the like necessary for various operations of the MME 40. Furthermore, the storage unit 450 stores a subscription DB 452 for temporarily storing subscriber information and an APN-IP address conversion DB 454.
- FIG. 8 is a diagram showing an example of the subscription DB 452.
- the structure of the database is the same as the subscription DB 352 held by the HSS 30 shown in FIG. 6, but information is temporarily held only for UEs that are managed by the MME 40.
- FIG. 9 is a diagram showing an example of the APN-IP address conversion DB 454.
- the APN for example, “WEB”
- the IP addresses of the PGW 10 and the SGW 20 for example, “2001: 200: 1: 1: 1” and “2001: 200: 2 :: 1” Is a database that holds a conversion table.
- a transmission / reception unit 510, a packet transmission / reception unit 520, and a storage unit 550 are connected to the control unit 500 via a bus.
- communication between the MME 40 and the home base station 60 and between the SGW 20 and the home base station 60 are performed via the GW 50.
- the control unit 500 is a functional unit for controlling the GW 50.
- the control unit 500 implements various processes by reading and executing various programs stored in the storage unit 550.
- the transmission / reception unit 510 is a functional unit that is wired to a router or a switch and transmits and receives packets.
- transmission / reception is performed by Ethernet (registered trademark) or the like generally used as a network connection method.
- the packet transmission / reception unit 520 is a functional unit that transmits / receives specific data (packets). Data received from the upper layer is disassembled as a packet and transmitted. In addition, a function of passing the received packet to an upper layer is realized.
- the storage unit 550 is a functional unit that stores programs, data, and the like necessary for various operations of the GW.
- FIG. 11 is a diagram illustrating the configuration of the home base station 60.
- the control unit 600 includes a NAT (Network Address Translation) unit 610, an LTE base station unit 630, a storage unit 650, a home network interface unit 660, and a broadband.
- the access network interface unit 670 is connected via a bus.
- the control unit 600 is a functional unit for controlling the home base station 60.
- the control unit 600 implements processing by reading and executing various programs stored in the storage unit 650.
- the NAT unit 610 receives the packet from the LTE base station unit 630, rewrites the transmission source IP address, and transfers the packet to the home network interface unit 660 or the broadband access network interface unit 670 based on the transmission destination IP address.
- a packet is received from the home network interface unit 660 or the broadband access network interface unit 670, and the transmission destination IP address is rewritten and transferred to the LTE base station unit 630.
- the NAT unit 610 stores an address conversion DB 612 as shown in FIG.
- the address translation DB 612 includes an identifier (UE1) of the UE 70, a translation source address of the UE 70 (eg, “UE1_HNP1” as the IP address prefix of the UE 70), and a translation destination address of the UE 70 (eg, “2001: 100: 200: 4000 :: 1 ").
- the LTE base station unit 630 functions as an LTE base station and is a functional unit for accommodating the UE 70.
- An external antenna 635 is connected to the LTE base station unit 630.
- the storage unit 650 is a functional unit that stores programs, data, and the like necessary for various operations of the home base station 60. Further, the storage unit 650 stores packet filtering information 652 and an IP address pool 654.
- FIG. 13 is a table showing an example of the packet filtering information 652 for each service type to be provided when the home base station 60 provides a local IP access function (for example, “type 1: Internet connection”). A rule that determines whether or not the home base station 60 can transfer a packet is stored.
- IPv6 address beginning with “2001: 100: 200: 3000” is assigned to the information terminal 80 connected to the home network.
- IPv6 2001: 100: 200: 3000 :: / 64”. That is, by applying the packet filtering assigned to the type 1, the home base station 60 blocks communication from the UE 70 to the home network and communication from the home network to the UE 70.
- FIG. 14 is a table showing an example of the IP address pool 654, and the IP address block (for example, “2001: 100: 200 :: / 48” given by the home base station 60 from the provider providing the broadband access service). Etc.).
- the home base station 60 performs allocation from this IP address block to the UE 70 that uses local IP access. For example, an IPv6 address prefix of “2001: 100: 200: 4000 :: / 64” is assigned to the UE 70. Shall be assigned. It is assumed that route information that is routed to the home base station 60 is set on the Internet for communication addressed to the IP address belonging to this IP address block.
- the home network interface unit 660 is a functional unit that performs packet transmission / reception with other devices in the home network. For example, transmission / reception is performed by Ethernet (registered trademark) or the like generally used as a network connection method.
- Ethernet registered trademark
- the broadband access network interface unit 670 is a functional unit that performs packet transmission / reception with the broadband access network. For example, transmission / reception is performed by ADSL or the like generally used as a network connection method.
- the configuration of the UE 70 that is a mobile station in the present embodiment will be described.
- a portable terminal connected to the mobile communication system via a radio access interface, a terminal such as a PDA, and the like are assumed.
- an LTE interface unit 710, a packet transmitting / receiving unit 720, a storage unit 750, and a bearer establishment processing unit 770 are connected to the control unit 700 via a bus.
- the control unit 700 is a functional unit for controlling the UE 70.
- the control unit implements various processes by reading and executing various programs stored in the storage unit 750.
- the LTE interface unit 710 is a functional unit for the UE 70 to connect to the home base station 60.
- An external antenna 715 is connected to the LTE interface unit 710.
- the packet transmission / reception unit 720 is a functional unit that transmits / receives specific data (packets). Data received from the upper layer is disassembled as a packet and transmitted. In addition, a function of passing the received packet to an upper layer is realized.
- the storage unit 750 is a functional unit that stores programs, data, and the like necessary for various operations of the UE 70. Further, the storage unit 750 stores an APN list 752.
- the APN list 752 stores APNs that the UE 70 uses as candidates for connection to the Internet.
- FIG. 16 shows an example of the data structure of the APN list 752. As illustrated in FIG. 16, the APN list 752 manages APNs that the UE 70 uses as candidates.
- the bearer establishment processing unit 770 is a functional unit that executes processing for establishing an EPS bearer that is a communication path with the SGW 20 in the core network.
- the control unit 800 is a functional unit for controlling the information terminal 80.
- the control unit 800 implements various processes by reading and executing various programs stored in the storage unit 850.
- the home network interface unit 810 is a functional unit that performs packet transmission / reception with other devices in the home network. For example, transmission / reception is performed by Ethernet (registered trademark) or the like generally used as a network connection method.
- Ethernet registered trademark
- the storage unit 850 is a functional unit that stores programs, data, and the like necessary for various operations of the information terminal 80.
- the home base station 60 transmits an S1 setting request to the MME 40 (S100).
- the S1 setting request is made to establish a communication path between the LTE base station unit 630 of the home base station 60 and the MME 40 and operate the home base station 60 as a base station of the mobile communication system 1.
- CSGID assigned to the home base station 60 and LIPA (Local IP Access) Capability indicating that the home base station 60 has a local IP access function, unlike the conventional case, are included.
- the MME 40 transmits an S1 setting response (S102). The registration process of the home base station 60 is thus completed.
- the UE 70 transmits an attach request to the home base station 60 in accordance with the conventional method defined in Non-Patent Document 1 (S200).
- the attach request includes a UE identifier (UE1), an APN ("WEB") for identifying a connection destination PDN, UE capability indicating a UE possession function, and the like.
- the home base station 60 adds its own CSG ID (for example, “CSGID 1”) to the received attach request and transmits it to the MME 40 (S202).
- CSG ID for example, “CSGID 1”
- the MME 40 extracts the UE identifier included in the attach request according to the conventional method, performs user authentication, and further transmits a location information update request to the HSS 30 in order to acquire the subscription data of the UE 70 (S204).
- the HSS 30 extracts only the information corresponding to the UE identifier “UE1” from the subscription DB 352 shown in FIG. 6, includes the extracted information in the location information update response, and transmits it to the MME 40 (S208).
- the MME 40 S208.
- the MME 40 stores the extracted information as shown in FIG. 8 in the subscription DB 452 of the UE 70 (S210).
- the MME 40 collates the CSGID (CSGID1) of the home base station 60 to which the UE 70 is connected with the acquired subscription data (S212). Thereby, it is collated whether UE70 has the access authority which connects to the home base station 60 (S212). If there is no access authority, the MME 40 transmits an attach rejection to the UE 70 via the home base station 60, and the attach process ends here assuming that the attach process has failed.
- CSGID CSS1
- the MME 40 When it is confirmed that there is an access authority, the MME 40 performs a PDN connection establishment process for the UE 70 that is permitted to connect (S214).
- the PDN connection is a logical path established between the UE 70 and the PDN, and includes an EPS bearer established between the home base station 60 and the SGW 20 and a PMIP tunnel established between the SGW 20 and the PGW 10. Composed.
- the PDN connection establishment process is performed among the UE 70, the home base station 60, the MME 40, the SGW 20, and the PGW 10.
- the MME 40 transmits a bearer setting request to the SGW 20 (S400).
- the bearer setting request includes a UE identifier (UE1) and an APN.
- the SGW 20 receives the bearer setting request and transmits a binding update request to the PGW 10 in order to establish a PMIP tunnel with the PGW 10 (S402).
- the binding update request includes a UE identifier (UE1) and an APN.
- the PGW 10 receives the binding update request, first assigns an HNP to the UE 70, and generates binding information 152 as shown in FIG. 3 (S404). Here, it is assumed that “UE1_HNP1” is assigned as the HNP.
- the PGW 10 establishes the PMIP tunnel 1 with the SGW 20 and, when receiving communication data addressed to the HNP assigned to the UE 70, sets the routing so as to be transferred to the SGW 20 via the PMIP tunnel 1 (S406). ). Then, the PGW 10 returns a binding update response to the SGW 20 (S408).
- the assigned HNP is included in the message.
- the SGW 20 that has received the binding update response transmits a bearer setting response to the MME 40 (S410).
- HNP is included in the bearer setting response.
- the MME 40 receives the bearer setting response, refers to the subscription data corresponding to the UE 70 stored in the subscription DB 452, and confirms whether or not there is an access authority for local IP access (S411).
- the CSG ID of the connected home base station 60 to which the UE 70 is connected is extracted (step S1000).
- the extracted CSGID (CSGID1) of the home base station 60 confirms whether or not an S1 setting request is made as a home base station having a local IP access function in step S100 in the registration process of the home base station (step S1002). ).
- the S1 setting request has been made on the assumption that the local IP access function is not provided (step S1002; No)
- the determination process ends (step S1012).
- step S1002 when an S1 setting request has been made as having a local IP access function (step S1002; Yes), services available with the CSG ID are extracted from the subscription DB 452 (step S1006).
- any one of the access authorities is granted (step S1008; Yes), unlike the conventional case, it is determined to transmit an attach permission including the service type described below to the LTE base station unit 630. (Step S1010). If no access authority is given for any service type (step S1008; No), the MME 40 determines to transmit an attach permission similar to the conventional one to the LTE base station unit 630, and performs an access authority determination process. The process ends (step S1012). In this case, it is assumed that the UE 70 cannot use local IP access.
- the service type to be included in the attach permission in step S1010 includes any of the following information based on the access authority information held in the subscription DB 452.
- Type 1 Internet connection available
- Type 2 Home network connection available
- Type 3 Internet connection and home network connection available For example, if only connection to the home network is permitted, the service type , “Type 2” is stored.
- the MME 40 transmits an attach permission to the LTE base station unit 630 based on the access authority determination process (S412).
- the attach permission includes the APN and the service type based on the determination processing result. Note that the service type is not included when no access authority is given to any service according to the determination processing result.
- the LTE base station unit 630 When the LTE base station unit 630 receives the attach permission and the service type is included, the LTE base station unit 630 refers to the packet filtering information 652 of FIG. 13 based on the service type, and executes a communication path setting process described below. (S416). Whether or not each communication data packet transmitted / received by the home base station 60 can be transferred is determined by this communication path setting process.
- the LTE base station unit 630 receives communication data (step S2000), and determines whether the communication data is received from the UE 70 connected to the home base station 60 (step S2002).
- step S2002 when the communication data is received from the UE 70 (step S2002; Yes), the transmission destination address is extracted, and the packet filtering information 652 is referred to according to the service type of the UE 70 (step S2004). Then, it is determined whether or not the transmission destination address is a permitted address (step S2006).
- step S2006 If it is determined in step S2006 that the destination address is a permitted address (step S2006; Yes), the communication data is transferred to the NAT unit 610 (S2008), and this process ends.
- step S2006 If it is determined in step S2006 that the destination address is not permitted (step S2006; No), it is further determined whether the destination address is an address for the home network (step S2010). If the destination is an address for the home address (step S2010; Yes), the received communication data is discarded (step S2012). Otherwise, the received communication data is transferred to the SGW 20 as an EPS bearer. (S2014), and this process ends.
- step S2002 when the reception of the LTE base station unit 630 is not reception from the UE 70 (step S2002; No), it is determined whether the reception is via the EPS bearer (step S2050 in FIG. 23). And when it determines with it being reception via an EPS bearer (step S2050; Yes), the received communication data are transmitted to UE70 using the LTE base station part 630 (step S2052), and this process is complete
- step S2050 when it is determined in step S2050 that the reception is not via the EPS bearer (step 2050; No), the UE 70 is searched from the transmission destination address and the translation source address of the address translation DB 612 (step S2054). Then, it is determined whether or not the corresponding UE is included in the address translation DB 612 (step S2056).
- step S2056 when the corresponding UE is included in the address translation DB 612 (step S2056; Yes), the source address is extracted, and the packet filtering information 652 is referred to according to the service type of the UE (step S2058). Then, it is determined whether the source address is a permitted address (step S2060). When the transmission source address is a permitted address (step S2060; Yes), the communication data is transmitted to the UE 70 using the LTE base station unit 630 (step S2052), and this process is terminated.
- step S2056 when the UE is not included in step S2056 (step S2056; No), or when the source address is not permitted in step S2060 (step S2060; No), it is received.
- the communication data is discarded and the process is terminated (step S2062).
- the LTE base station unit 630 transmits an attach permission to the UE 70 (S422 in FIG. 20).
- the attach permission includes an APN and does not include the service type.
- the UE 70 transmits RRC connection reconfiguration completion to the LTE base station unit 630 (S218).
- the LTE base station unit 630 transmits a bearer setting response to the MME 40 (S220).
- the MME 40 receives the bearer setting response and transmits a bearer update request including the IP address of the home base station 60 to the SGW 20 (S222).
- the SGW 20 transmits a bearer update response to the MME 40 (S224), acquires the IP address of the home base station 60, and establishes an EPS bearer.
- SGW20 transmits the router advertisement which stored HNP acquired by the PDN connection establishment process to UE70 (S226).
- the UE 70 extracts the HNP from the received router advertisement and generates its own IPv6 address using the HNP (S228).
- the UE 70 completes the establishment of the EPS bearer, and is ready to transmit and receive communication data using the PMIP tunnel 1 and the EPS bearer.
- the UE 70 uses the Internet connection or home network connection service with an application such as a WEB browser, the UE 70 first transmits communication data to the LTE base station unit 630 (S230).
- the LTE base station unit 630 that has received the communication data of the UE 70 selects a communication path of the received communication data based on the communication path setting process described above (step S232). Then, when it is determined to transfer the communication data to the SGW via the EPS bearer based on the determination of the communication path setting process, the communication data is transferred via the EPS bearer and the PMIP tunnel 1, It is sent to the external PDN (S234).
- the NAT unit 610 Based on the address conversion DB 612, NAT processing for rewriting the transmission source address of the communication data is executed (S238). If the destination address is a home network address, the home network interface unit 660 is used to transmit the communication data. In other cases, the communication data is transmitted using the broadband access network interface unit 670.
- the LTE base described above is used. Communication data is discarded by the communication path setting process in the local unit 630.
- the home base station owner and the mobile communication carrier can set the access authority for each service for each UE for the service using the local IP access function of the home base station. Station usage scenarios can be realized.
- the home base station can perform packet filtering according to the service type to which the access authority is given to the UE, and if the UE that is not allowed to use the home network connection service via the local IP access, Even if communication data for the home network is transmitted accidentally or intentionally, the home base station can detect and discard the communication data. Also, packet filtering according to access authority is applied to communication data in the reverse direction.
- the access authority for the local IP access is notified to the home base station, and the access control of the UE is performed according to the authority. By doing so, the home base station does not need to hold access authority information for each UE.
- the group identifier of the home base station connectable for each UE and the access authority information for local IP access are centrally managed in the subscriber information management apparatus, and the information is used for access control in the home base station. This facilitates the setting and management of access authority information by the home base station owner and the mobile communication carrier.
- the PMIP tunnel is established by using the binding update request and the binding update response between the PGW 10 and the SGW 20 as an example.
- the present invention is not limited to this, and instead, a bearer establishment request and a bearer are established.
- a method of establishing a transmission path equivalent to a PMIP tunnel by establishing a GTP (GPRS Tunneling Protocol) tunnel using the establishment response may be used.
- the home base station 60 includes a component as a gateway to the broadband access network has been described as an example.
- the present invention is not limited thereto, and the broadband access network interface unit 670 of the home base station 60 is described.
- Only the home network interface unit 660 as an independent device hereinafter referred to as a home gateway).
- the home base station 60 includes a control unit 600, a NAT unit 610, an LTE base station unit 630, and a storage unit. 650 and home network interface unit 660 may be connected via a bus.
- the home base station 60, the home gateway, and the information terminal 80 are connected to each other via the home network interface.
- IPv4 IP Virtual Private Network Translation
- NAT Network Address Translation
- the home base station 60 is connected to the SGW 20 and the MME 40 via the GW 50 as an example.
- the present invention is not limited to this, and the home base station 60 is directly connected to the SGW 20 and the MME 40. It may be configured.
- FIG. 24 is a diagram showing an example of the configuration of the home base station 62.
- the configuration of the home base station 60 in the first embodiment is that the access authority information 656 is recorded in the storage unit 658 (650). Is different.
- FIG. 25 is a diagram illustrating an example of the access authority information 656.
- a UE identifier for example, “UE1”
- an available service for example, “ “Type 1: Internet connection is not permitted”, “Type 2: Home network connection is permitted”, etc.
- the owner of the home base station 62 can change the access authority information 656.
- the owner of the home base station 62 can newly add information on another UE or change an available service of the specific UE. Shall.
- the home base station 62 may notify the HSS 30.
- the subscription DB 352 of the HSS 30 is changed, and the HSS 30 returns the home information. You may notify the base station 62.
- the home base station 62 performs a registration procedure with the mobile communication system 1. Since this registration process is the same as that of the first embodiment, a description thereof will be omitted.
- the UE 70 performs an attach process via the home base station 62.
- the PDN connection establishment process is different from the first embodiment.
- the PDN connection establishment process of this embodiment will be described.
- FIG. 26 shows a PDN connection establishment process.
- the MME 40 transmits a bearer setting request to the SGW 20 (S500).
- the bearer setting request includes a UE identifier (UE1) and an APN.
- the SGW 20 receives the bearer setting request and transmits a binding update request to the PGW 10 in order to establish a PMIP tunnel with the PGW 10 (S502).
- the binding update request includes a UE identifier (UE1) and an APN.
- the PGW 10 receives the binding update request, first assigns an HNP to the UE 70, and generates binding information as shown in FIG. 3 (S504).
- the PGW 10 establishes the PMIP tunnel 1 with the SGW 20 and, when receiving communication data addressed to the HNP assigned to the UE 70, sets the routing so as to be transferred to the SGW 20 via the PMIP tunnel 1 (S506). ). Then, the PGW 10 returns a binding update response to the SGW 20 (S508).
- the assigned HNP is included in the message.
- the SGW 20 that has received the binding update response transmits a bearer setting response to the MME 40 (S510).
- HNP is included in the bearer setting response.
- the MME 40 receives the bearer setting response and, unlike the first embodiment, transmits an attach permission including only the APN to the LTE base station unit 630 without determining whether or not there is an access right to local IP access (S512). ).
- the LTE base station unit 630 receives the attach permission and confirms whether or not the UE 70 has access authority to the local IP access (S514).
- the determination process executed here is the same as the access authority determination process illustrated in FIG. 21 performed by the MME 40 in the first embodiment, but the access held by the home base station 62 instead of referring to the subscription DB 452 of the MME 40. The difference is based on the authority information 656.
- the LTE base station unit 630 determines whether or not each communication data can be transferred by executing a communication path setting process based on the service type based on the access authority of the UE 70 and the packet filtering information 652 (S516). .
- the communication path setting process is the same as the process in the first embodiment, but is different based on the access authority information 656 stored in the home base station 62.
- the LTE base station unit 630 After completing the communication path setting, the LTE base station unit 630 transmits an attach permission to the UE 70 (S522). With the above procedure, the PDN connection establishment procedure is completed.
- the service authority is added when the MME transmits the attach permission to the LTE base station by holding the access authority information for each UE in the home base station as in the case of the HSS. This additional processing is unnecessary, and the addition of functions to the MME can be minimized.
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Abstract
Description
しかし、前述のアクセスモード及びサブスクリプション情報に基づくアクセス制御だけでは、ローカルIPアクセスで利用可能となる複数サービスについて、個別にアクセス権限を設定する仕組みがないため、上述の利用シナリオを実現することができないという課題があった。
まず、本発明を適用した移動通信システムの第1実施形態について、図面を参照して説明する。
図1は、本実施形態における移動通信システム1の概略を説明するための図である。本図に示すように、移動通信システム1は、コアネットワークとホームネットワークから構成され、コアネットワークとホームネットワークはブロードバンドアクセスネットワークを介して相互接続されている。ブロードバンドアクセスネットワークは、広帯域の通信を実現する有線アクセスネットワークであり、例えばADSLや光ファイバー等によって構築される。ただし、これに限らずWiMAXなどの無線アクセスネットワークであっても良い。
続いて、各装置の構成について図を用いて簡単に説明する。
まず、本実施形態におけるPGW10の構成について説明する。PGW10は、図2に示すように、制御部100に、送受信部110と、パケット送受信部120と、記憶部150と、PMIP処理部160とがバスを介して接続されている。
次に、本実施形態におけるSGW20の構成について説明する。SGW20は、図4に示すように、制御部200に、送受信部210と、記憶部250と、ベアラ確立処理部270と、パケット送受信部220と、PMIP処理部260とがバスを介して接続されている。
次に、本実施形態におけるHSS30の構成について説明する。HSS30は、図5に示すように、制御部300に、送受信部310と、記憶部350とがバスを介して接続されている。
次に、本実施形態におけるMME40の構成について説明する。図7に示すように、制御部400に、送受信部410と、記憶部450とがバスを介して接続されている。
次に、本実施形態におけるGW50の構成について説明する。図10に示すように、制御部500に、送受信部510と、パケット送受信部520と、記憶部550とがバスを介して接続されている。
記憶部550は、GWの各種動作に必要なプログラム、データ等を記憶する機能部である。
次に、本実施形態におけるホーム基地局60の構成について、説明する。図11はホーム基地局60の構成を説明した図であり、制御部600に、NAT(Network Address Translation)部610と、LTE基地局部630と、記憶部650と、ホームネットワークインタフェース部660と、ブロードバンドアクセスネットワーク用インタフェース部670とがバスを介して接続されている。
次に、本実施形態における移動局であるUE70の構成について、説明する。UE70の具体的な一例としては、無線アクセスインタフェースを介して移動通信システムに接続する携帯端末や、PDA等の端末が想定される。図15に示すように、制御部700に、LTEインタフェース部710と、パケット送受信部720と、記憶部750と、ベアラ確立処理部770とがバスを介して接続されている。
次に、本実施形態における情報端末80の構成について説明する。情報端末80は、図17に示すように、制御部800に、ホームネットワークインタフェース部810と、記憶部850とがバスを介して接続されている。
次に、図1に示す移動通信システム1において、UE70がホーム基地局60を介してコアネットワーク及びローカルIPアクセスを利用するための手続きについて、図を用いて説明する。
まず、ホーム基地局60の移動通信システム1への登録手続きについて、図18を用いて説明する。
次に、UE70がホーム基地局60を介してコアネットワークに接続し、APNが「WEB」で識別される外部PDNに接続する手続きについて、図19を用いて説明する。
以下、PDNコネクション確立処理について図20を用いて説明する。
ここで、アクセス権限における判定の処理につき、図21のフローチャートを用いて説明する。
種別2:ホームネットワーク接続が利用可能
種別3:インターネット接続と、ホームネットワーク接続が利用可能
例えば、ホームネットワークへの接続のみが許可されている場合には、サービス種別として、「種別2」を格納する。
以下、再び図20に戻り、次の処理の説明を進める。
この通信路設定処理において、通信経路の設定が完了した後、LTE基地局部630は、アタッチ許可をUE70に送信する(図20のS422)。ここで、アタッチ許可には、APNが含まれ、前記サービス種別は含まない。以上の手続きにより、PDNコネクション確立処理が完了する。
以下、再び図19に戻り、次の処理の説明を進める。
UE70がWEBブラウザなどのアプリケーションでインターネット接続或いはホームネットワーク接続サービスを利用する場合には、UE70は、まず通信データをLTE基地局部630に送信する(S230)。
続いて、本発明の第2実施形態について説明する。本実施形態は、ホーム基地局60の構成を除いて、ネットワーク構成及び装置構成は第1実施形態と同様であり、ホーム基地局60の構成以外の詳細説明は省略する。
まず、各装置構成について図を用いて簡単に説明する。
本実施形態におけるホーム基地局62の構成について、説明する。図24は、ホーム基地局62の構成の一例を示した図であり、第1実施形態におけるホーム基地局60の構成とは、記憶部658(650)にアクセス権限情報656を記録している点が異なる。
まず、第1実施形態と同様にホーム基地局62は、移動通信システム1への登録手続きを行う。本登録処理は第1実施形態と同様であるため説明を省略する。
図26は、PDNコネクション確立処理を示したものである。
10 PGW
100 制御部
110 送受信部
120 パケット送受信部
150 記憶部
152 バインディング情報
160 PMIP処理部
20 SGW
200 制御部
210 送受信部
220 パケット送受信部
250 記憶部
260 PMIP処理部
270 ベアラ確立処理部
30 HSS
300 制御部
310 送受信部
350 記憶部
352 サブスクリプションDB
40 MME
400 制御部
410 送受信部
450 記憶部
452 サブスクリプションDB
454 APN-IPアドレス変換DB
50 GW
500 制御部
510 送受信部
520 パケット送受信部
550 記憶部
60、62 ホーム基地局
600 制御部
610 NAT部
612 アドレス変換DB
630 LTE基地局部
635 外部アンテナ
650、658 記憶部
652 パケットフィルタリング情報
654 IPアドレスプール
656 アクセス権限情報
660 ホームネットワークインタフェース部
670 ブロードバンドアクセスネットワーク用インタフェース部
70 UE
700 制御部
710 LTEインタフェース部
715 外部アンテナ
720 パケット送受信部
750 記憶部
752 APNリスト
770 ベアラ確立処理部
80 情報端末
800 制御部
810 ホームネットワークインタフェース部
850 記憶部
Claims (6)
- 移動端末が接続されたホーム基地局を有するホームネットワークと、加入者情報管理装置、位置管理装置及びアクセス制御装置が接続されるコアネットワークとが外部ネットワークを介して接続されている移動通信システムであって、
前記加入者情報管理装置は、
前記移動端末を識別する移動端末識別子に対応づけて、ホーム基地局を識別するためのグループ識別子と、前記移動端末が利用可能なサービス種別とをサブスクリプション情報として記憶するサブスクリプション記憶部と、
前記位置管理装置より、前記移動端末の位置情報更新要求を受信する位置情報更新要求受信部と、
前記位置情報更新要求に含まれる移動端末識別子に対応するサービス種別を前記サブスクリプション記憶部から抽出し、位置情報更新応答に含めて前記位置管理装置へ送信する位置情報応答送信部と、
を備えることを特徴とする移動通信システム。 - 移動端末が接続されたホーム基地局を有するホームネットワークと、加入者情報管理装置、位置管理装置及びアクセス制御装置が接続されるコアネットワークとが外部ネットワークを介して接続されている移動通信システムに含まれる加入者情報管理装置であって、
前記移動端末を識別する移動端末識別子に対応づけて、ホーム基地局を識別するためのグループ識別子と、前記移動端末が前記ホーム基地局を介して利用可能なサービス種別とをサブスクリプション情報として記憶するサブスクリプション記憶部と、
前記位置管理装置より、前記移動端末の位置情報更新要求を受信する位置情報更新要求受信部と、
前記位置情報更新要求に含まれる移動端末識別子に対応するサービス種別を前記サブスクリプション記憶部から抽出し、位置情報更新応答に含めて前記位置管理装置へ送信する位置情報応答送信部と、
を備えることを特徴とする加入者情報管理装置。 - 前記サブスクリプション情報に含まれる前記移動端末が利用可能なサービス種別は、前記移動端末がインターネットへの接続の許否及びホームネットワークへの接続の許否を示すことを特徴とする請求項2に記載の加入者情報管理装置。
- 移動端末が接続されたホーム基地局を有するホームネットワークと、加入者情報管理装置、位置管理装置及びアクセス制御装置が接続されるコアネットワークとが外部ネットワークを介して接続されている移動通信システムに含まれる位置管理装置であって、
前記移動端末から移動端末識別子を含むアタッチ要求を受信するアタッチ要求受信部と、
前記アタッチ要求から移動端末識別子を抽出し、当該移動識別子を含む位置情報更新要求を、前記加入者情報管理装置へ送信する位置情報更新要求送信部と、
前記加入者情報管理装置から、前記移動端末が利用可能なサービス種別を含む位置情報更新応答を受信する位置情報更新応答受信部と、
前記位置情報更新応答から、サービス種別を抽出し、当該利用可能サービスに基づいて、前記移動端末からのアタッチ要求の可否を判定するアタッチ要求可否判定部と、
を備えることを特徴とする位置管理装置。 - 移動端末が接続されたホーム基地局を有するホームネットワークと、加入者情報管理装置、位置管理装置及びアクセス制御装置が接続されるコアネットワークとが外部ネットワークを介して接続されている移動通信システムに含まれるホーム基地局であって、
前記位置管理装置から、サービス種別を含むアタッチ許可を受信するアタッチ許可受信部と、
前記移動端末の通信を制御するために、サービス種別に応じたパケットフィルタリング情報を記憶するパケットフィルタリング情報記憶部と、
前記アタッチ許可に含まれるサービス種別と、前記パケットフィルタリング情報とから、接続される移動端末に対して通信経路選択の制御を行う通信経路制御部と、
を備えることを特徴とするホーム基地局。 - 移動端末が接続されたホーム基地局を有するホームネットワークと、加入者情報管理装置、位置管理装置及びアクセス制御装置が接続されるコアネットワークとが外部ネットワークを介して接続されている移動通信システムに含まれるホーム基地局であって、
ローカルIPアクセス機能を備えることを前記位置管理装置に通知するローカルIPアクセス機能保有通知部を備えることを特徴とするホーム基地局。
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US20190253871A1 (en) | 2019-08-15 |
KR101397282B1 (ko) | 2014-05-20 |
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US20160112863A1 (en) | 2016-04-21 |
US9258697B2 (en) | 2016-02-09 |
US10582369B2 (en) | 2020-03-03 |
CA2766314A1 (en) | 2010-12-29 |
CN102804822A (zh) | 2012-11-28 |
US20120113937A1 (en) | 2012-05-10 |
JP5947871B2 (ja) | 2016-07-06 |
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US10278059B2 (en) | 2019-04-30 |
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CA2766314C (en) | 2020-09-01 |
EP2448302A4 (en) | 2016-05-25 |
CN102804822B (zh) | 2017-06-06 |
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JPWO2010150785A1 (ja) | 2012-12-10 |
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