WO2017056966A1 - 通信制御装置選択方法および通信システム - Google Patents
通信制御装置選択方法および通信システム Download PDFInfo
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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
- H04W8/183—Processing at user equipment or user record carrier
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/17—Selecting a data network PoA [Point of Attachment]
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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
- H04W88/16—Gateway arrangements
Definitions
- FIG. 1 is a system configuration diagram of a communication system 1A according to an embodiment of the present invention.
- the communication system 1A includes an eNodeB 20, a default MME (Mobility Management Entity) 30, an HSS 40, a selected MME 50 (route setting device), an SGW (Serving Gateway) selection device 60A, a DNS server 70A, and an SGW 80 (communication). Control device).
- a UE (User Equipment) 10 terminal) including a smartphone and a tablet terminal can perform communication by connecting to the communication system 1A.
- UE10 has memorize
- the HSS 40 is a server that manages subscriber information including contract information, authentication information, communication service information, terminal type information, and location information of communication terminals such as the UE 10 in a database (for example, the user attribute storage unit 41).
- the communication service information is information defining the type of communication service used by each UE 10.
- the communication service information includes information for identifying the UE 10 (for example, IMSI (International Mobile Subscriber Identity)) and a service type indicating requirements of the communication service used by the UE 10. An example of this information is shown in FIG. As illustrated in FIG. 2, the communication service information includes an IMSI for identifying a terminal and a service type (service type). In the example illustrated in FIG.
- the SGW selection device 60A and the DNS server 70A include one or a plurality of CPUs 101, a RAM 102 and a ROM 103 as main storage devices, and a communication module 104 (Transmitter as a data transmission / reception device). or Receiver), an auxiliary storage device 105 (Memory) exemplified by a hard disk, a flash memory, etc., an input device 106 exemplified by a touch panel and a keyboard as input devices, an output device 107 such as a display, etc.
- the communication module 104, the input device 106, and the output device are controlled under the control of the CPU 101.
- a series of functions in each device is realized by operating 107 and reading and writing data in the RAM 102 and the auxiliary storage device 105.
- software, instructions, etc. may be transmitted / received via a transmission medium.
- software may use websites, servers, or other devices using wired technology such as coaxial cable, fiber optic cable, twisted pair and digital subscriber line (DSL) and / or wireless technology such as infrared, wireless and microwave.
- wired technology such as coaxial cable, fiber optic cable, twisted pair and digital subscriber line (DSL) and / or wireless technology such as infrared, wireless and microwave.
- DSL digital subscriber line
- wireless technology such as infrared, wireless and microwave.
- the address storage unit 73A is a part that stores information in which a service type is associated with an SGW address corresponding to the service type.
- An example of information stored in the address storage unit 73A is shown in FIG. As shown in FIG. 5, “Service type” indicating the service type and “Address” indicating the address of the SGW are stored in association with each other.
- the address search unit 72A refers to the information shown in FIG. 5 and extracts the address “192.168.0.1” if the service type is “low latency”, while the address if the service type is “High Security”. Extract “192.168.0.3”.
- the address request unit 62A of the SGW selection device 60A transmits all the service types acquired by the service acquisition unit 61 to the DNS server 70A and makes an address request (DNS query request) of the SGW 80 (step S8).
- the request receiving unit 71A of the DNS server 70A receives the service type and receives an address request.
- the request reception unit 71A sends the received service type to the address search unit 72A.
- the address search unit 72A acquires the address of each SGW corresponding to the service type from the address storage unit 73A using the service type as a search key.
- the address search unit 72A of the DNS server 70A acquires the SGW address
- the address search unit 72A sends the SGW address to the address notification unit 74A.
- the request reception unit 71A of the DNS server 70A receives a plurality of service types
- the address search unit 72A sends out an address corresponding to each service type.
- the address notification unit 74A transmits the list of the SGW addresses to the SGW selection device 60A (Step S9, DNS query response).
- the UE 10 makes an attach request by transmitting an Attach Request signal to the eNodeB 20 (step S21).
- the eNodeB 20 makes an attach request (AttachMERequest) to the default MME 30 (step S22).
- the address request unit 62B of the SGW selection device 60B transmits the service type and UE Usage Type acquired by the service acquisition unit 61 to the DNS server 70B, and makes an address transmission request between the address of the selected MME 50 and the address of the SGW 80.
- the address receiving unit 63B of the SGW selecting device 60B is a part that receives the address of the selected MME 50 and the address of the SGW 80 from the DNS server 70B.
- the address search unit 72B searches the address storage unit 73B that stores the address of the selected MME 50B corresponding to the service type or UE Usage Type, and corresponds to the search key using the service type or UE Usage ⁇ ⁇ Type as a search key.
- the address of the selected MME 50 to be acquired is acquired.
- the address notification unit 74B is a part that transmits the address extracted by the address search unit 72B to the SGW selection device 60B.
- the UE 10 makes an attach request to the eNodeB 20 by transmitting the service type and UE Usage Type stored by the own device together with the Attach Request signal (step S41).
- the eNodeB 20 makes an MME search request to the SGW selection device 60B using an MME Selection Request signal (step S42).
- the request reception unit 71B of the DNS server 70B receives the received service type and UE Usage Type, and transmits the received service type and UE Usage Type to the address search unit 72B.
- the address search unit 72B acquires the address of the SGW 80 corresponding to the service type, and acquires the address of the selected MME 50 corresponding to the service type or UE Usage Type.
- the address search unit 72B notifies the acquired address to the address notification unit 74B.
- the address notification unit 74B transmits the acquired address to the SGW selection device 60B (Step S44, DNS query response).
- the address receiving unit 63B When receiving the address of the selected MME 50 and the address of the SGW 80 from the DNS server 70B, the address receiving unit 63B sends the addresses of the selected MME 50 and the SGW 80 to the connection request unit 64B.
- the eNodeB 20 In response to receiving the MME Selection Response signal, the eNodeB 20 transmits an Attach request Message indicating an attach request together with the address of the SGW 80 to the address of the selected MME 50 (step S46).
- step S47 Authentication
- the selected MME 50 transmits a Create Session Request signal indicating a session generation request to the device (selected SGW) indicated by the received SGW address (step S48).
- a bearer establishment process between the known UE 10 and the SGW 80 is performed (for example, a process subsequent to Create
- the UE 10 makes an attach request by transmitting an Attach Request signal to the eNodeB 20 (step S51).
- the eNodeB 20 sends an MME Selection Request signal to the SGW selection device 60B to make an MME selection request (step S52).
- the SGW selection device 60B transmits a service type transmission request to the HSS 40 together with an Update-Location-Request signal indicating a request for location registration (step S53), receives the Update-Location-Response signal from the HSS 40, and supports the IMSI of the UE 10.
- Service type to be used, UE Usage Type is acquired (step S54).
- Steps S55 to S61 are the same as steps S43 to S49 shown in FIG.
- the address search unit 72A acquires an address indicating the selected MME 50 using the service type acquired by the request reception unit 71A.
- the process for determining the selected MME 50 and the process for determining the SGW 80 can be performed in a lump, the process can be simplified by comparing the determination of the selected MME 50 and the determination of the SGW 80 by another device. can do. That is, the connection process between the UE 10 and the SGW 80 can be simplified.
- the address storage unit 73C of the DNS server 70C stores a plurality of tables in which “Service type” and “Address” are associated with each other. Specifically, a table in which the address of the C-Plane entity is set in “Address” and a table in which the address of the U-Plane entity is set in “Address” are stored.
- the DNS server 70C receives the service type from the entity selection device 120 and receives the transmission request for the address of the C-Plane entity and the address of the U-Plane entity
- the DNS server 70C receives the address of the C-Plane entity corresponding to the service type and The address of the U-Plane entity is transmitted to the entity selection device 120.
- the DNS server 70C refers to the table in which the C-Plane entity address is set, acquires the C-Plane entity address corresponding to the service type, and sets the U-Plane entity address. The address of the U-Plane entity corresponding to the service type is acquired by referring to the table. Then, the DNS server 70C transmits the acquired address to the entity selection device 120.
- the entity selection device 120 has a function corresponding to each of the service acquisition unit 61, the address request unit 62B, the address reception unit 63B, and the connection request unit 64B shown in FIG. Specifically, the entity selection device 120 acquires a service type from the eNodeB 20. Further, the entity selection device 120 transmits the service type to the DNS server 70C, and requests transmission of the address of the C-Plane entity and the address of the U-Plane entity. In addition, the entity selection device 120 acquires one or more addresses of the C-Plane entity corresponding to the service type and one or more addresses of the U-Plane entity corresponding to the service type from the DNS server 70C. The entity selection device 120 selects one or more addresses of the C-Plane entity and one or more addresses of the U-Plane entity from the acquired address, notifies the selected address to the eNodeB 20, and makes a connection request.
- the UE 10 makes an attach request by transmitting an Attach Request signal to the eNodeB 20 (step S71).
- the eNodeB 20 transmits a service type together with an Entity Selection Request signal to the entity selection device 120, thereby making an entity selection request (step S72).
- the entity selection device 120 transmits the service type to the DNS server 70C and makes a CPE and UPE address request (DNS query request) (step S73).
- Steps S74 to S78 are the same as steps S44 to S48 shown in FIG.
- the entity selection device 120 can also select the C-Plane entity according to the communication service.
- a table in which service types and APNs (Access Point Names) are associated with each other as shown in FIG. 14 (a), or a service type and DCN (Dedicated Core Network) as shown in FIG. 14 (b).
- the SGW selection device 60A stores a table (DCN table) in which IDs are associated with each other. That is, the APN or DCN ID is associated with the service type.
- the table which matched APN or DCN ID and the address of SGW80 as shown in FIG.14 (c) is memorize
- the SGW selection device 60A searches the APN table or the DCN table and acquires the APN or DCN ID (information indicating the service) corresponding to the service type.
- the SGW selection device 60A transmits the acquired APN or DCN ID to the DNS server 70A and requests an address of the SGW 80.
- the DNS server 70A searches the table, acquires an address corresponding to the received APN or DCN ID, and transmits the acquired address to the SGW selection device 60A.
- the SGW selection device 60B or the entity selection device 120 stores the APN table or the DCN table as in the above example, and the APN or DCN ID corresponding to the received service type is sent to the DNS server 70B or the DNS server 70C. It is also possible to send an address request.
- RAN Radio Access Network
- software, instructions, etc. may be transmitted / received via a transmission medium.
- software may use websites, servers, or other devices using wired technology such as coaxial cable, fiber optic cable, twisted pair and digital subscriber line (DSL) and / or wireless technology such as infrared, wireless and microwave.
- wired technology such as coaxial cable, fiber optic cable, twisted pair and digital subscriber line (DSL) and / or wireless technology such as infrared, wireless and microwave.
- DSL digital subscriber line
- wireless technology such as infrared, wireless and microwave.
- the channel and / or symbol may be a signal.
- the signal may be a message.
- the component carrier (CC) may be called a carrier frequency, a cell, or the like.
- system and “network” used in this specification are used interchangeably.
- information, parameters, and the like described in this specification may be represented by absolute values, may be represented by relative values from a predetermined value, or may be represented by other corresponding information.
- the radio resource may be indicated by an index.
- the base station can accommodate one or a plurality of (for example, three) cells (also called sectors). When the base station accommodates a plurality of cells, the entire coverage area of the base station can be divided into a plurality of smaller areas, and each smaller area can be divided into a base station subsystem (for example, an indoor small base station RRH: Remote).
- a communication service can also be provided by Radio Head).
- the term “cell” or “sector” refers to part or all of the coverage area of a base station and / or base station subsystem that provides communication services in this coverage. Further, the terms “base station”, “eNB”, “cell”, and “sector” may be used interchangeably herein.
- a base station may also be called in terms such as a fixed station (fixed station), a NodeB, an eNodeB (eNB), an access point (access point), a femto cell, and a small cell.
- a mobile station is defined by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless It may also be called terminal, remote terminal, handset, user agent, mobile client, client, or some other appropriate terminology.
- determining encompasses a wide variety of actions. “Decision” can be, for example, judgment, calculating, computing, processing, deriving, investigating, looking up (eg, table, database or another Search of the data structure), ascertaining what has been confirmed, and so on. Also, “determining” includes receiving (eg, receiving information), transmitting (eg, transmitting information), input (input), output (output), and access (accessing) ( For example, it may include “determining” that the data in the memory has been accessed. Also, “determining” may include resolving, selecting, selecting, establishing, comparing, and the like as “determined”. In other words, “determining” can include considering some action as “determining”.
- connection means any direct or indirect connection between two or more elements, and one between two elements “connected” to each other. Or it can include the presence of more intermediate elements.
- the connection between the elements may be physical, logical, or a combination thereof.
- the two elements are radio frequency by using one or more wires, cables and / or printed electrical connections, and as some non-limiting and non-inclusive examples
- electromagnetic energy such as electromagnetic energy having wavelengths in the region
- the microwave region and the light (both visible and invisible) region can be considered “connected” to each other.
- the phrase “based on” does not mean “based only on”, unless expressly specified otherwise. In other words, the phrase “based on” means both “based only on” and “based at least on.”
- any reference to elements using designations such as “first”, “second”, etc. as used herein does not generally limit the amount or order of those elements. These designations can be used herein as a convenient way to distinguish between two or more elements. Thus, a reference to the first and second elements does not mean that only two elements can be employed there, or that in some way the first element must precede the second element.
- notification of information is not limited to the aspect / embodiment described in this specification, and may be performed by other methods.
- notification of information includes physical layer signaling (for example, DCI (Downlink Control Information), UCI (Uplink Control Information)), upper layer signaling (for example, RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling), It may be implemented by broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination thereof.
- the RRC signaling may be referred to as an RRC message, and may be, for example, an RRC connection setup (RRC Connection Setup) message, an RRC connection reconfiguration (RRC Connection Reconfiguration) message, or the like.
- each aspect / embodiment described in this specification includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G, 5G, FRA (Future Radio Access), W -CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, UWB (Ultra-WideBand) ), Bluetooth (registered trademark), other appropriate systems, and / or next-generation systems extended based on these systems.
- LTE Long Term Evolution
- LTE-A LTE-Advanced
- SUPER 3G IMT-Advanced
- 4G 5G
- FRA Full Radio Access
- W -CDMA registered trademark
- GSM registered trademark
- CDMA2000 Code Division Multiple Access 2000
- UMB User Data Management Entity
- IEEE 802.11 Wi-Fi
- IEEE 802.16 WiMAX
- the specific operation performed by the base station in the present specification may be performed by the upper node in some cases.
- various operations performed for communication with a terminal may be performed by the base station and / or other network nodes other than the base station (for example, Obviously, this can be done by MME or S-GW, but not limited to these.
- MME Mobility Management Entity
- S-GW Serving Mobility Management Entity
- the above information can be output from the upper layer (or lower layer) to the lower layer (or upper layer).
- Input / output may be performed via a plurality of network nodes.
- the input / output information or the like may be stored in a specific place (for example, a memory) or may be managed by a management table. Input / output information and the like can be overwritten, updated, or additionally written. The output information or the like may be deleted. The input information etc. may be deleted. The input information or the like may be transmitted to another device.
- the determination may be performed by a value represented by 1 bit (0 or 1), may be performed by a true / false value (Boolean: true or false), or may be performed by comparing numerical values (for example, a predetermined value) Comparison with the value).
- notification of predetermined information is not limited to explicitly performed, but is performed implicitly (for example, notification of the predetermined information is not performed). Also good.
- SYMBOLS 1A, 1B ... Communication system 10 ... UE (terminal), 20 ... eNodeB, 30 ... Default MME, 60A, 60B ... SGW selection apparatus, 61 ... Service acquisition part, 62A, 62B ... Address request part, 63A, 63B ... Address Receiving unit, 64A, 64B ... connection requesting unit, 70A, 70B ... DNS server, 71A, 71B ... request receiving unit, 72A, 72B ... address searching unit, 73A, 73B ... address storage unit, 74A, 74B ... address notifying unit, 80 ... SGW.
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Abstract
Description
図1は、本発明の一実施形態の通信システム1Aのシステム構成図である。この通信システム1Aは、eNodeB20、デフォルトMME(Mobility Management Entity)30、HSS40、選択されたMMEである選択MME50(経路設定装置)、SGW(Serving Gateway)選択装置60A、DNSサーバ70A、及びSGW80(通信制御装置)を含んで構成されている。スマートフォン、タブレット端末を含むUE(User Equipment)10(端末)は、この通信システム1Aと通信接続することにより通信を行うことができる。また、UE10は、自装置が使用可能な複数の通信サービスを示す情報を記憶しており、当該情報をeNodeB20へ送信する。通信サービスとは、通信を用いたサービスであり、動画配信や車車間通信等のサービスである。それぞれのサービスにおいて、要求されるネットワーク要件が異なる。UE10は、通信サービスを示す情報として、上記ネットワーク要件を示す情報であるサービスタイプを記憶している。
上述の実施形態では、選択MME50に含まれるSGW選択装置60Aについて述べたが、本実施形態では、SGW選択装置60Bは、UE10と接続するMMEも選択要求する。図8に本発明の第2実施形態の通信システム1Bのシステム構成図である。第2実施形態の通信システム1Bは、第1実施形態の通信システム1AのデフォルトMME30を含まず、SGW選択装置60Bが、第1実施形態の通信システム1AのデフォルトMME30の機能(選択MME50の決定)を担う。また、SGW選択装置60Bは、選択MME50から独立している。
上述の第2実施形態では、SGW選択装置60Bが、MMEリストによって特定される選択MME50へ接続し、当該選択MME50がSGWのリストで特定されるSGW80へ接続要求する場合について述べた。本実施形態では、図12に示す通信システム1Cのシステム構成図のように、SGW選択装置60Bに対応するエンティティ選択装置120が、C-Planeエンティティ及びU-Planeエンティティを選択する。ここで、C-Planeエンティティとは、UE10が利用する通信サービス提供に利用される制御信号を伝送する経路である制御プレーンを用いて当該制御信号を送受信するノードである。また、U-Planeエンティティとは、UE10が利用する通信サービス提供に利用されるユーザ信号を伝送する経路であるユーザプレーンを用いて当該ユーザ信号を送受信するノードである。
上述の実施形態では、SGW選択装置60Aがサービスタイプを受信し、当該サービスタイプをDNSサーバ70Aへ送信することにより、SGW80のアドレス要求をする場合について述べたが、SGW選択装置60Aが、サービスタイプとは異なるサービスを示す情報をDNSサーバ70Aへ送信して、SGW80のアドレス要求をするようにしてもよい。
Claims (7)
- 第1通信サービス及び前記第1通信サービスとは異なる第2通信サービスを利用可能な端末と、前記第1通信サービス又は前記第2通信サービスを利用するためのデータを送受信する通信制御装置とを含む通信システムにおいて、前記端末と接続させる前記通信制御装置を選択する通信制御装置選択方法であって、
前記第1通信サービス及び前記第2通信サービスのうちから、前記端末が利用する通信サービスを特定し、特定した前記通信サービスと、当該通信サービスを利用するためのデータを送受信する通信制御装置とを対応付けた情報を参照して、特定した前記通信サービスが前記第1通信サービスである場合、第1通信制御装置を選択する一方、前記情報を参照して、特定した前記通信サービスが前記第2通信サービスである場合、前記第1通信制御装置とは異なる第2通信制御装置を選択する選択ステップを含む、通信制御装置選択方法。 - 前記選択ステップで選択された通信制御装置に対して前記端末を接続する接続ステップをさらに含む、請求項1に記載の通信制御装置選択方法。
- 前記特定した通信サービスに基づいて、前記第1通信制御装置又は前記第2通信制御装置と、前記端末との間のデータの経路設定を行う経路設定装置を選択する第2選択ステップをさらに含む、請求項1又は2に記載の通信制御装置選択方法。
- 前記端末が利用する通信サービスを示す情報を前記端末から取得し、当該通信サービスを示す情報を用いて前記通信サービスを特定する、請求項1~3の何れか一項に記載の通信制御装置選択方法。
- 前記端末を識別する情報に基づいて他の装置から前記端末が利用する通信サービスを示す情報を取得し、当該通信サービスを示す情報を用いて前記通信サービスを特定する、請求項1~3の何れか一項に記載の通信制御装置選択方法。
- 前記選択ステップでは、前記端末が利用する通信サービスのための制御信号を伝送する経路である制御プレーンを用いて当該制御信号を、前記通信サービスを利用するためのデータとして送受信する、請求項1~5の何れか一項に記載の通信制御装置選択方法。
- 第1通信サービス及び前記第1通信サービスとは異なる第2通信サービスを利用可能な端末と、前記第1通信サービス又は前記第2通信サービスを利用するためのデータを送受信する通信制御装置とを含む通信システムにおいて、
前記第1通信サービス及び前記第2通信サービスのうちから、前記端末が利用する通信サービスを特定し、特定した前記通信サービスと、当該通信サービスを利用するためのデータを送受信する通信制御装置とを対応付けた情報を参照して、特定した前記通信サービスが前記第1通信サービスである場合、第1通信制御装置を選択する一方、前記情報を参照して、特定した前記通信サービスが前記第2通信サービスである場合、前記第1通信制御装置とは異なる第2通信制御装置を選択する選択手段を備える、通信システム。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/758,567 US10492134B2 (en) | 2015-09-28 | 2016-09-13 | Communication control device selection method and communications system |
EP16851140.0A EP3300433B1 (en) | 2015-09-28 | 2016-09-13 | Communication control device selection method and communications system |
JP2017543094A JPWO2017056966A1 (ja) | 2015-09-28 | 2016-09-13 | 通信制御装置選択方法および通信システム |
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JPWO2017056966A1 (ja) | 2018-05-31 |
US10492134B2 (en) | 2019-11-26 |
EP3300433B1 (en) | 2019-05-22 |
JP6768116B2 (ja) | 2020-10-14 |
EP3300433A1 (en) | 2018-03-28 |
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