WO2016009579A1 - モビリティ管理のための方法および装置 - Google Patents
モビリティ管理のための方法および装置 Download PDFInfo
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- WO2016009579A1 WO2016009579A1 PCT/JP2015/002419 JP2015002419W WO2016009579A1 WO 2016009579 A1 WO2016009579 A1 WO 2016009579A1 JP 2015002419 W JP2015002419 W JP 2015002419W WO 2016009579 A1 WO2016009579 A1 WO 2016009579A1
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- mtc
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- mobility
- mtc device
- mobility management
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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
- H04W8/10—Mobility data transfer between location register and external networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4588—Network directories; Name-to-address mapping containing mobile subscriber information, e.g. home subscriber server [HSS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/04—User notification, e.g. alerting and paging, for incoming communication, change of service or the like multi-step notification using statistical or historical mobility data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/12—Inter-network notification
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
- H04W60/02—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration by periodical registration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/005—Transmission of information for alerting of incoming communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W8/24—Transfer of terminal data
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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
Definitions
- the disclosure herein relates to a mobile communication network, and in particular to mobility management of a Machine Type Communication (MTC) device.
- MTC Machine Type Communication
- MTC Machine Type Communication
- M2M Machine-to-Machine
- 3GPP defines mobile stations (Mobile station (MS), Mobile terminal (MT), User Equipment (UE)) mounted on machines and sensors for MTC as “MTC devices”.
- MTC devices are installed in various devices such as machinery (e.g., firewood vending machines, gas meters, electric meters, automobiles, railway vehicles) and sensors (e.g., sensors related to the environment, agriculture, traffic, etc.).
- the MTC device connects to the Public Land Mobile Network (PLMN) and communicates with the MTC application server (Application Server (AS)).
- PLMN Public Land Mobile Network
- AS Application Server
- the MTC application server is arranged outside the PLMN (external network), executes the MTC application, and communicates with the MTC UE application mounted on the MTC device.
- An MTC application server is generally controlled by an MTC service provider (M2M service provider).
- 3GPP provides network elements, reference points, and procedures, including Service Capability Server (SCS) and Machine Type Communication Interworking Functions (MTC-IWF), to enable MTC application servers to communicate with MTC devices.
- SCS Service Capability Server
- MTC-IWF Machine Type Communication Interworking Functions
- a reference point is also called an interface.
- the SCS is an entity that connects the MTC application server to the 3GPP PLMN and enables the MTC application server to communicate with the UE (that is, the MTC device) via the PLMN service defined by 3GPP.
- the SCS also enables the MTC application server to communicate with the MTC-IWF. That is, the SCS provides an application programming interface (Application Programming Interface (API)) to the MTC application server so that the service or capabilities provided by 3GPP PLMN can be used. It is assumed that the SCS is controlled by a PLMN operator or an MTC service provider.
- a framework for mediation that includes one or more SCSs is sometimes referred to as an M2M service platform or an MTC service platform.
- the framework that provides an API to the MTC application server is called an “exposure layer” in Open Mobile Alliance (OMA).
- OMA Open Mobile Alliance
- MTC-IWF is a control plane entity belonging to PLMN.
- MTC-IWF has a signaling interface (reference point) with M2M service platform including SCS, and nodes in PLMN (for example, Home Subscriber Server (HSS), Short Message Service-Service Center (SMS-SC), It has a signaling interface (reference point) to Serving GPRS Support Node (SGSN), Mobility Management Entity (MME), and Mobile Switching Center (MSC).
- the MTC-IWF acts as a control plane interface for the MTC application server or M2M service platform and 3GPP PLMN to interwork while hiding the details of the 3GPP PLMN topology.
- the MTC application server or M2M service platform communicates with the MTC device through 3GPP PLMN.
- the MTC application server or M2M service platform may communicate with the MTC device on the user plane or via a device trigger.
- the inventor of the present case examined various use cases of the MTC application.
- the magnitude of mobility of an MTC device is expected to vary depending on the operation mode, usage state, or usage environment of the MTC device.
- the magnitude of mobility of the MTC device changes depending on whether the vehicle is running or stopped. Further, it may be possible to estimate the mobility of the MTC device depending on whether or not the vehicle engine is started.
- the MTC device is a wearable device (eg, smartwatch or wristband device)
- the mobility of the MTC device depends on whether the person wearing the wearable device is out or at home. The size changes.
- the operation mode, usage state, or usage environment of the MTC device may be more easily known in the MTC application server or M2M service platform (eg, SCS) than in the PLMN. .
- MTC application server or the M2M service platform can freely communicate with the MTC device and the user plane (at the application layer) through the PLMN.
- the MTC application server or the M2M service platform may be able to know the usage status and usage environment of the MTC device via a machine on which the MTC device is mounted or other communication means mounted on the sensor.
- the MTC application server or the M2M service platform may be able to know the operation mode, use state, or use environment of the MTC device based on weather or marine alerts announced by government agencies or private organizations.
- Non-Patent Document 1 does not assume such a control operation or control procedure.
- one of the objects to be achieved by the embodiments disclosed herein is to utilize the mobility characteristics of the MTC device obtained in the MTC application server or the M2M service platform for mobility management of the MTC device within the PLMN.
- a mobility management method for an MTC device includes (A) a first message indicating mobility characteristics of the MTC device at a first entity in a core network, the core network and a radio access network. Receiving an application programming interface (API) from an MTC service platform that provides an MTC application server to make available services provided by the mobile communication network; and (B) in the core network Updating at least one of a length of a periodic position update timer and a size of a paging area individually applied to the MTC device based on the mobility characteristics in a second entity.
- API application programming interface
- a method performed by a service capability entity that provides an application programming interface (API) to an MTC application server includes sending a first message indicating the mobility characteristics of an MTC device to a network in the core network. Including sending to an entity.
- the first message causes an update in the core network of at least one of a length of a periodic location update timer and a size of a paging area that are individually applied to the MTC device.
- a subscriber server located in the core network is coupled to the memory configured to store subscriber information of the MTC device and to support the mobility management of the MTC device.
- a processor configured to perform the control procedure.
- the control procedure includes: (A) receiving mobility characteristics of the MTC device from an MTC service platform via a network entity in the core network; and (B) a period applied individually to the MTC device. Updating the length of a typical location update timer based on the movement characteristics.
- the mobility management entity located in the core network includes a memory and a processor coupled to the memory and configured to perform mobility management of the MTC device.
- the mobility management includes: (A) receiving mobility characteristics of the MTC device from an MTC service platform via a network entity in the core network; and (B) paging applied individually to the MTC device. Updating the size of the area based on the movement characteristics.
- a service capability entity that provides an application programming interface (API) to an MTC application server is coupled to the memory and to the memory to perform the method according to the second aspect described above. And a configured processor.
- API application programming interface
- the program includes a group of instructions (software code) for causing the computer to perform a control procedure performed by the subscriber server arranged in the core network when read by the computer.
- the control procedure includes: (A) receiving mobility characteristics of the MTC device from an MTC service platform via a network entity in the core network; and (B) a periodicity individually applied to the MTC device. Updating the length of a position update timer based on the movement characteristics.
- the program includes a group of instructions (software code) for causing the computer to perform a control procedure performed by the mobility management entity arranged in the core network when read by the computer.
- the control procedure includes: (A) receiving mobility characteristics of an MTC device from an MTC service platform via a network entity in the core network; and (B) a paging area individually applied to the MTC device. Updating the size based on the movement characteristics.
- the program includes a group of instructions (software code) for causing the computer to perform the method according to the second aspect described above when read by the computer.
- the above-described aspect can provide a method, an apparatus, and a program that contribute to performing mobility management of an MTC device in the PLMN by using the mobility characteristics of the MTC device obtained in the MTC application server or the M2M service platform.
- FIG. 1 shows a configuration example of a mobile communication network, that is, a PLMN according to an embodiment of the present invention.
- the mobile communication network provides communication services such as voice communication and / or packet data communication.
- the mobile communication network will be described as EvolvedvolvePacket System (EPS).
- EPS can also be called LongLTerm Evolution (LTE) system or LTE-Advanced system).
- LTE LongLTerm Evolution
- UMTS Universal Mobile Telecommunications System
- the E-UTRAN 110 includes an MTC device (MTC UE) 111 and an eNodeB 112.
- the EPC 120 includes an MME 121, an HSS / Home location register (HLR) 122, an MTC-IWF 123, a Serving gateway (S-GW) 124, and a packet data network (P-GW) 125.
- the M2M service platform 130 includes an SCS 131. As already mentioned, the M2M service platform 130 can also be referred to as an MTC service platform or exposure layer.
- the MTC UE 111 executes the MTC UE application and behaves as an MTC device.
- the MTC UE 111 as the MTC device establishes a signaling connection (that is, a Non-Access Stratum (NAS) connection) with the MME 121 via the E-UTRAN 110, and also uses the MTC application via the S-GW 124 and the P-GW 125. Communicate with the server 132 on the user plane.
- NAS Non-Access Stratum
- the MTC UE 111 may be an MTC gateway device.
- MTC gateway devices have 3GPP mobile communication capabilities (ie UE capabilities) and connect to neighboring devices (eg sensors, radio frequency identification (RFID) tags, car navigation devices) via personal / local area connection technology To do.
- Specific examples of the personal / local area connection technology include IEEE 802.15, ZigBee (registered trademark), Bluetooth (registered trademark), and IEEE 802.11a.
- the neighboring device connected to the MTC gateway device is typically a device that does not have a 3GPP mobile communication function, but may be a device that has a 3GPP mobile communication function (that is, an MTC device). .
- the terms MTC device and MTC gateway device are used without any particular distinction. That is, the term MTC device as used herein encompasses an MTC gateway device.
- the eNodeB 112 establishes a Radio Resource Control (RRC) connection with the MTC UE 111 and sets a signaling radio bearer (Signaling Radio Bearer (SRB)) with the MTC UE 111. Then, the eNodeB 112 performs RRC signaling for setting and modifying the data radio bearer (Data Radio Bearer (DRB)) and NAS message transfer between the EPC 120 (that is, the MME 121) and the MTC UE 111 in the SRB. provide.
- the NAS message is not terminated by the E-UTRAN 110 and is transmitted and received transparently between the MTC UE 111 and the MME 121. Furthermore, the eNodeB 112 transfers the user data of the MTC UE 111 in the DRB with the MTC UE 111.
- the MME 121, the HSS / HLR 122, and the MTC-IWF 123 are control plane nodes or entities.
- the MME 121 performs mobility management and bearer management of a plurality of UEs (UEs) including the MTC-UE 111 attached to the EPC 120 (that is, EMM-REGISTERED-state).
- Mobility management is used to keep track of the UE's current location (keep track) and includes maintaining a mobility management context (MM context) for the UE.
- Bearer management includes controlling the establishment of an EPS bearer for the UE to communicate with an external network (Packet Data Network (PDN)) via the E-UTRAN 110 and the EPC 120 and maintaining an EPS bearer context for the UE.
- PDN Packet Data Network
- HSS / HLR 122 manages subscriber information of UEs including MTC UE 111. In addition, the HSS / HLR 122 records information (such as MME Identity) of the MME that manages each UE attached to the EPC 120 (EMM-REGISTERED state).
- MTC-IWF123 is a control plane entity belonging to EPC120.
- the MTC-IWF 123 communicates with other network entities including the MME 121 and the HSS / HLR 122 via a signaling interface (reference point).
- the MTC-IWF 123 is a control plane interface or gateway for the MTC application server 132 or the M2M service platform 130 and 3GPP PLMN to interwork while hiding the details of the 3GPP PLMN topology. Behave as.
- the MTC-IWF 123 communicates with SCS 131 via a Tsp reference point.
- the SCS 131 connects the MTC application server 132 to the PLMN including the E-UTRAN 110 and the EPC 120 so that the MTC application server 132 can communicate with the MTC UE 111 (that is, the MTC device) via the PLMN service defined by 3GPP.
- the Tsp reference point may be used, for example, for transmitting a device trigger transmission request (Device Trigger Request (DTR)) from the SCS 131 to the MTC-IWF 123 and reporting the device trigger result from the MTC-IWF 123 to the SCS 131.
- DTR Device Trigger Request
- the MTC-IWF 123 communicates with the HSS / HLR 122 via the S6m reference point.
- the S6m reference point may be used, for example, to transmit an inquiry of subscriber information from the MTC-IWF 123 to the HSS / HLR 122 and to transmit subscriber information from the HSS / HLR 122 to the MTC-IWF 123.
- the MTC-IWF 123 communicates with the MME 121 via the T5b reference point.
- the T5b reference point may be used, for example, to transmit a device trigger request from the MTC-IWF 123 to the MME 121 and to report the success or failure of the device trigger from the MME 121 to the MTC-IWF 123.
- the S-GW 124 is a user plane packet transfer node arranged in the EPC 120, and transfers user data packets of the MTC UE 111.
- the S-GW 124 plays a role of a gateway with the E-UTRAN 110.
- the S-GW 124 has a user plane tunneling interface (ie, S1-U reference point) with the E-UTRAN 110, and a user plane tunneling interface (ie, S5 / S8) with the P-GW 125. Reference point).
- the S-GW 124 has a signaling interface (i.e., S11 reference point) with the MME 121.
- the P-GW 125 is a user plane packet transfer node arranged in the EPC 120, as with the S-GW 124, and transfers the user data packet of the MTC UE 111.
- the P-GW 125 plays a role of a gateway with a PDN outside the 3GPP PLMN, and provides connectivity with the PDN to the MTC UE 111.
- the PDN includes an SCS 131 and an application server 132.
- the SCS 131 provides one or more APIs to the MTC application server 132 so that the MTC application server 132 can communicate with the MTC-IWF 123.
- the SCS 131 is controlled by a PLMN operator or an MTC service provider.
- the SCS 131 is also called an MTC server, an M2M server, or an API Gateway Function (API-GWF).
- API-GWF API Gateway Function
- the SCS 131 may communicate with the MTC UE 111 on the user plane or via a device trigger.
- the SCS 131 may be a single independent physical entity or a functional entity added to another network element (for example, the MTC-IWF 123 or the MTC application server 132).
- the MTC application server 132 executes the MTC application and communicates with the MTC UE application installed in the MTC UE 111.
- the MTC application server 132 is also called an M2M application server.
- the mobile communication network (PLMN) including the E-UTRAN 110 and the EPC 120 receives device information indicating the behavior or characteristics of the MTC UE 111 from the M2M service platform 130.
- the device information related to MTC UE 111 indicates the movement characteristics of MTC UE 111.
- the PLMN including the E-UTRAN 110 and the EPC 120 based on the device information of the MTC UE 111 notified from the M2M service platform 130, (a) a periodic location update timer (ie, periodic) individually applied to the MTC UE 111 At least one of the length of Tracking Area Update (TAU) timer) and (b) the size of the paging area individually applied to MTC UE 111 is updated.
- TAU Tracking Area Update
- the periodic TAU timer specifies the interval of periodic position update (ie, TAU) by the MTC UE 111.
- the periodic TAU timer is called T3412 timer.
- the MME 121 sends the value of the periodic TAU timer to the MTC UE 111 using a NAS message (specifically, an ATTACH ACCEPT message or a TAU ACCEPT message).
- the MTC UE 111 uses the timer value received from the MME 121 and executes periodic TAU.
- the paging area is determined by the MME 121 and defines a range in which a paging message transmitted from the MME 121 to call (page) the MTC UE 111 is wirelessly transmitted.
- the paging area is generally determined based on the location registration area of the MTC UE 111 known in the MME 121 (that is, tracking area (TA)), and includes a plurality of cells and a plurality of base stations (eNodeBs).
- the M2M service platform 130 may transmit device information related to the MTC UE 111 to the MTC-IWF 123.
- MTC-IWF123 should just transmit the said device information to MME121 or HSS / HLR122, or both.
- the device information sent to the MME 121 and / or the HSS / HLR 122 or both via the MTC-IWF 123 is used to determine the value of the periodic TAU timer for the MTC UE 111 and / or the size of the paging area. .
- the EPC 120 including the MME 121 and the HSS / HLR 122 is periodically applied to the MTC UE 111.
- the timer may be shortened.
- the EPC 120 may shorten the periodic TAU timer for MTC UE 111 as the mobility of MTC UE 111 increases.
- the EPC 120 can accurately grasp the current position of the MTC UE 111 in the idle state (ECM_IDLE state).
- the EPC 120 may lengthen the periodic TAU timer for MTC ⁇ ⁇ ⁇ UE 111 as the mobility of MTC UE 111 decreases. Thereby, EPC120 can reduce the signaling load resulting from frequent TAU.
- the EPC 120 increases the size of the paging area individually applied to the MTC UE 111. Also good. In other words, the EPC 120 may increase the size of the paging area for the MTC UE 111 as the mobility of the MTC UE 111 increases. Thereby, the EPC 120 can reduce paging failures. On the contrary, the EPC 120 may reduce the size of the paging area for the MTC UE 111 as the mobility of the MTC UE 111 decreases. Thereby, the E-UTRAN 110 and the EPC 120 can reduce the paging load caused by calling (page) the MTC UE 111 in many cells.
- the device information related to the MTC UE 111 notified to the MTC-IWF 123 from the M2M service platform 130 e.g., SCS 131
- the device information indicates the movement characteristics of MTC UE 111.
- UE111 may show the magnitude
- M2M service is the Intelligent Transport Systems (ITS) service.
- the MTC UE 111 is a device mounted on a vehicle
- the movement characteristic indicated by the device information may indicate whether the vehicle is running or whether the engine of the vehicle is started. . From the fact that the vehicle is traveling, it can be inferred that the mobility of MTC UE 111 is greater than in the case where the vehicle is not. Also, it can be estimated that the mobility of MTC UE 111 is greater than when the engine of the vehicle has been started.
- M2M service is tracking cargo in logistics services. If the MTC UE 111 is a device attached to a cargo, the movement characteristics indicated by the device information may indicate whether the cargo is being transported or placed at a distribution center. From the fact that the cargo is being transported, it can be inferred that the mobility of MTC UE 111 is greater than when the cargo is placed at the distribution center.
- a further example of an M2M service is a healthcare service or home security service using a wearable device.
- the MTC UE 111 is a wearable device
- the movement characteristic indicated by the device information may indicate whether the person wearing the MTC UE 111 is out or at home. From the fact that the person is out, it can be inferred that the mobility of MTC UE 111 is greater than when the person is at home.
- M2M service is a pet monitoring service. If the MTC UE 111 is a device that is attached to an animal and used to monitor the animal, the mobility characteristics indicated by the device information may indicate whether the animal is out of the home or at home. From the fact that the animal is out, it can be estimated that the mobility of MTC UE 111 is greater than when the animal is at home.
- step S ⁇ b> 101 the SCS 131 transmits a UE CHARACTERISTICS NOTIFY message to the MTC-IWF 123.
- the SCS 131 may transmit a UE-CHARACTERISTICS-NOTIFY message in response to detecting a change in UE characteristics (specifically, movement characteristics) of the MTC-UE 111.
- the UE CHARACTERISTICS NOTIFY message indicates the MTC UE 111 external identifier (External ID) and the MTC UE 111 movement information.
- the external identifier is used for identifying the MTC UE 111 in the M2M service platform 130 or the MTC application server 132.
- the external identifier may be, for example, Mobile Subscriber Integrated Services Digital Network Number (MSISDN).
- MSISDN Mobile Subscriber Integrated Services Digital Network Number
- UE111 shows the movement characteristic of MTC
- the MTC-IWF 123 transfers the UE-CHARACTERISTICS-NOTIFY message to the HSS / HLR 122.
- the HSS / HLR 122 receives the UE CHARACTERISTICS NOTIFY message and searches for the internal identifier (Internal ID) of the MTC UE 111 based on the external identifier of the MTC UE 111.
- the internal identifier may be, for example, International Mobile Subscriber Identity (IMSI).
- step S104 the value of the periodic TAU timer for MTC UE 111 stored in association with the internal identifier (e.g., IMSI) of MTC UE 111 is updated.
- the value of the periodic TAU timer may be stored in the HSS / HLR 122 as part of the subscriber information of the MTC UE 111.
- step S105 the HSS / HLR 122 returns a response message (ACK message) to the MTC-IWF 123.
- step S106 the MTC-IWF 123 returns a response message (ACK message) to the SCS 131.
- the HSS / HLR 122 notifies the MME 121 of the update of the value of the periodic TAU timer applied individually to the MTC UE 111.
- the HSS / HLR 122 can use the Diameter message sent on the S6a interface between the MME 121 and the HSS / HLR 122 to inform the updated periodic TAU timer value.
- an INSERT-SUBSCRIBER-DATA message may be used.
- the INSERT SUBSCRIBER DATA message is used by the HSS / HLR 122 to voluntarily inform the MME 121 of subscriber information.
- the SUBSCRIBER DATA message indicates the internal identifier (MSISDN) of MTC UE 111 and subscriber information (here, the value of the updated periodic TAU timer).
- the MME 121 notifies the MTC UE 111 of the updated value of the periodic TAU timer.
- the MME 121 uses the NAS message to notify the updated periodic TAU timer value.
- the MME 121 indicates the updated periodic TAU timer value in the TAU procedure performed after the updated periodic TAU timer value is notified from the HSS / HLR 122.
- a message may be sent to the MTC UE 111.
- the MTC UE 111 executes periodic TAU using the updated value of the periodic TAU timer notified from the MME 121.
- FIG. 3 shows a specific example of the procedure for updating the size of the paging area.
- the processing performed in steps S201 to S203 is the same as the processing performed in steps S101 to S103 in FIG.
- the HSS / HLR 122 transmits a UE CHARACTERISTICS NOTIFY message to the MME 121 that performs mobility management of the MTC UE 111.
- the UE CHARACTERISTICS NOTIFY message transmitted in step S204 includes an internal identifier (e.g., IMSI) to specify MTC UE111.
- the MME 121 updates the size of the paging area for the MTC UE 111 stored in association with the internal identifier (e.g., IMSI) of the MTC UE 111.
- the MME 121 may hold the size of the paging area as part of the MM context of the MTC UE 111.
- the MME 121 determines the paging area according to the updated size of the paging area.
- step S206 the MME 121 returns a response message (ACK message) to the HSS / HLR 122.
- the HSS / HLR 122 returns a response message (ACK message) to the MTC-IWF 123.
- step S208 the MTC-IWF 123 returns a response message (ACK message) to the SCS 131.
- FIG. 4 shows another specific example of the procedure for updating the size of the paging area.
- the MME 121 receives a UE CHARACTERISTICS NOTIFY message indicating the mobility characteristic of the MTC UE 111 from the HSS / HLR 122 via the S6a reference point.
- the MME 121 receives a UE CHARACTERISTICS NOTIFY message indicating the movement characteristics of the MTC UE 111 from the MTC-IWF 123 via the T5b reference point.
- step S301 in FIG. 4 The process performed in step S301 in FIG. 4 is the same as the process performed in step S101 in FIG. 2 and step S201 in FIG.
- step S302 the MTC-IWF 123 inquires of the HSS / HLR 122 for an internal identifier corresponding to the external identifier (e.g., MSISDN) of the MTC UE 111 in order to acquire the internal identifier (e.g., IMSI) of the MTC UE 111.
- the MTC-IWF 123 may request the subscriber information corresponding to the external identifier of the MTC-UE 111 from the HSS / HLR 122.
- step S303 the HSS / HLR 122 searches for the internal identifier of the MTC UE 111 based on the external identifier of the MTC UE 111. Then, the HSS / HLR 122 transmits to the MTC-IWF 123 a response message indicating the internal identifier (e.g., IMSI) of the MTC UE 111 and the identifier of the MME (MME Identity) performing the mobility management of the MTC UE 111.
- MME Identity may be, for example, Globally Unique Unique MME Identity (GUMMEI), MME IP address, or both.
- GUMMEI Globally Unique Unique MME Identity
- steps S302 and S303 may be omitted.
- step S304 the MTC-IWF 123 transmits a UE-CHARACTERISTICS-NOTIFY message to the MME 121 that is managing the mobility of the MTC-UE 111.
- the UE CHARACTERISTICS NOTIFY message transmitted in step S304 includes an internal identifier (e.g., IMSI) to specify MTC UE111.
- step S305 The process performed in step S305 is the same as the process performed in step S205 of FIG.
- step S306 the MME 121 returns a response message (ACK message) to the MTC-IWF 123.
- step S307 the MTC-IWF 123 returns a response message (ACK message) to the SCS 131.
- the MTC-IWF 123 in the EPC 120 transmits a message (eg, UE CHARACTERISTICS NOTIFY message) indicating the mobility characteristic of the MTC UE 111 to the entity (eg, SCS 131). Then, the MME 121 in the EPC 120 determines the size of the periodic TAU timer and / or paging area individually applied to the MTC UE 111 based on the mobility characteristics of the MTC UE 111 notified from the M2M service platform 130.
- a message eg, UE CHARACTERISTICS NOTIFY message
- the EPC 120 shows the mobility characteristics of the MTC device (ie, MTC UE111) obtained in the M2M service platform 130 or the MTC application server 132 by managing the mobility of the MTC device (ie, MTC UE111) in the PLMN. It can be done using it.
- FIG. 5 shows a configuration example of the MME 121.
- the MME 121 includes a network interface 1210, a processor 1211, and a memory 1212.
- the network interface 1210 is used to communicate with other network nodes (e.g., eNodeB 112, HSS / HLR 122, MTC-IWF 123, and S-GW 124).
- the network interface 1210 may include, for example, a network interface card (NIC) compliant with IEEE 802.3 series.
- NIC network interface card
- the processor 1211 executes communication control (e.g., mobility management and bearer management) by reading and executing software (computer program) from the memory 1212.
- the processor 1211 may be, for example, a microprocessor, a Micro Processing Unit (MPU), or a Central Processing Unit (CPU).
- the processor 1211 may include a plurality of processors.
- the memory 1212 is configured by a combination of a volatile memory and a nonvolatile memory.
- the volatile memory is, for example, Static Random Access Memory (SRAM), Dynamic RAM (DRAM), or a combination thereof.
- the nonvolatile memory is, for example, a mask Read Only Memory (MROM), Programmable ROM (PROM), flash memory, hard disk drive, or a combination thereof.
- the memory 1212 may include storage that is physically separated from the processor 1211. In this case, the processor 1211 may access the memory 1212 via the network interface 1210 or another I / O interface not shown.
- the memory 1212 includes an S1-MME module 1213, an S6a module 1214, an S10 module 1215, an S11 module 1216, a NAS module 1217, and an EPS Mobility Management (EMM) and EPS Session Management (ESM) module 1218.
- EMM EPS Mobility Management
- ESM EPS Session Management
- the EMM and ESM module 1218 is for executing the procedure for updating the value of the periodic TAU timer and the size of the paging area based on the mobility characteristics of the MTC UE 111 informed from the M2M service platform 130 described in the above embodiment. Contains instructions and data.
- the processor 1211 reads out the EMM module and the ESM module 1218 from the memory 1212 and executes them, thereby performing the operation of the MME 121 related to the procedure for updating the periodic TAU timer value and the paging area size described in the above embodiment. it can.
- FIG. 6 shows a configuration example of the HSS / HLR 122.
- the HSS / HLR 122 includes a network interface 1220, a processor 1221, and a memory 1222.
- the network interface 1220 is used to communicate with other network nodes (e.g., MME 121 and MTC-IWF 123).
- the network interface 1220 may include, for example, a network interface card (NIC) compliant with IEEE 802.3 series.
- NIC network interface card
- the processor 1221 reads out and executes software (computer program) from the memory 1222, thereby executing communication control including management of subscriber information.
- the processor 1221 may be, for example, a microprocessor, MPU, or CPU.
- the processor 1221 may include a plurality of processors.
- the memory 1222 is configured by a combination of a volatile memory and a nonvolatile memory.
- the volatile memory is, for example, SRAM or DRAM or a combination thereof.
- the non-volatile memory is, for example, an MROM, PROM, flash memory, hard disk drive, or a combination thereof.
- Memory 1222 may include storage located physically separate from processor 1221. In this case, the processor 1221 may access the memory 1222 via the network interface 1220 or other I / O interface not shown.
- the memory 1222 is used to store a software module group including an S6a module 1223, an S6m module 1224, and a subscriber information management module 1225, and subscriber information data 1226.
- the subscriber information management module 1225 performs the update procedure of the periodic TAU timer value and the paging area size based on the mobility characteristics of the MTC UE 111 informed from the M2M service platform 130 described in the above embodiment. Instruction group and data.
- the processor 1221 reads out the subscriber information management module 1225 from the memory 1222 and executes it, thereby performing the operation of the HSS / HLR 122 regarding the updating procedure of the periodic TAU timer value and the paging area size described in the above embodiment. It can be carried out.
- FIG. 7 shows a configuration example of the SCS 131.
- the SCS 131 includes a network interface 1310, a processor 1311, and a memory 1312.
- the network interface 1310 is used to communicate with other network nodes (e.g., MTC-IWF 123 and MTC application server 132).
- the network interface 1310 may include, for example, a network interface card (NIC) compliant with IEEE 802.3 series.
- NIC network interface card
- the processor 1311 reads out and executes software (computer program) from the memory 1312 to execute communication control for the MTC device (e.g., device trigger, acquisition of communication characteristics of the MTC device).
- the processor 1311 may be, for example, a microprocessor, MPU, or CPU.
- the processor 1311 may include a plurality of processors.
- the memory 1312 is configured by a combination of a volatile memory and a nonvolatile memory.
- the volatile memory is, for example, SRAM or DRAM or a combination thereof.
- the non-volatile memory is, for example, an MROM, PROM, flash memory, hard disk drive, or a combination thereof.
- the memory 1312 may include storage that is physically located away from the processor 1311. In this case, the processor 1311 may access the memory 1312 via the network interface 1310 or another I / O interface not shown.
- the memory 1312 is used to store a software module group including a Tsp module 1313, an SGi module 1314, and a UE characteristic management module 1315.
- the UE characteristic management module 1315 executes the procedure described in the above embodiment to inform the EPC 120 (ie, MTC-IWF123) of the mobility characteristic of the MTC UE 111 grasped by the M2M service platform 130 or the MTC application server 132. Instruction group and data.
- the processor 1311 reads the UE characteristic management module 1315 from the memory 1312 and executes it, thereby performing the operation of the SCS 131 related to the procedure for updating the periodic TAU timer value and the paging area size described in the above embodiment. it can.
- each of the processors included in the MME 121, the HSS / HLR 122, and the SCS 131 causes the computer to execute the algorithm described using the sequence diagram and the like.
- One or a plurality of programs including the instruction group is executed.
- Non-transitory computer readable media include various types of tangible storage media (tangible storage medium). Examples of non-transitory computer-readable media are magnetic recording media (eg flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (eg magneto-optical discs), Compact Disc Read Only Memory (CD-ROM), CD-ROM R, CD-R / W, semiconductor memory (for example, mask ROM, Programmable ROM (PROM), Erasable PROM (EPROM), flash ROM, Random Access Memory (RAM)).
- the program may also be supplied to the computer by various types of temporary computer-readable media. Examples of transitory computer readable media include electrical signals, optical signals, and electromagnetic waves.
- the temporary computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.
- the architecture shown in FIG. 1 is only an example of an architecture for MTC in 3GPP.
- functions and entities located in the M2M service platform 130 (MTC service platform, exposure layer) and their names may change in future releases or versions.
- the SCS 131 described in the present embodiment may be called an API Gateway Function (API-GWF).
- API-GWF API Gateway Function
- the function of SCS131 may be divided
- the technical idea described in the above embodiment can be applied to the architecture for these modified MTCs.
- UMTS Universal Mobile Telecommunications System
- HRPD High Rate Packet Data
- GSM Global System for Mobile Communications
- GPRS General packet radio service
- Evolved Universal Terrestrial Radio Access Network 111 User Equipment (UE) 112 eNodeB 120 Evolved Packet Core (EPC) 121 Mobility Management Entity (MME) 122 Home Subscriber Server (HSS) 123 Machine Type Communication Inter Working Function (MTC-IWF) 124 Serving Gateway (S-GW) 125 Packet Data Network Gateway (P-GW) 130 Machine-to-Machine (M2M) Service Platform 131 Service Capability Server (SCS) 132 MTC Application Server (AS)
- EPC Evolved Packet Core
- MME Mobility Management Entity
- HSS Home Subscriber Server
- MTC-IWF Machine Type Communication Inter Working Function
- S-GW Serving Gateway
- P-GW Packet Data Network Gateway
- M2M Machine-to-Machine
- SCS Service Capability Server
- AS MTC Application Server
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Abstract
Description
図1に示されたアーキテクチャは、3GPPにおけるMTCのためのアーキテクチャの一例に過ぎない。例えば、M2Mサービスプラットフォーム130(MTCサービスプラットフォーム、エクスポージャーレイヤ)内に配置されるファンクション及びエンティティ並びにこれらの名称は、将来のリリース又はバージョンにおいて変更されるかもしれない。例えば、本実施形態において説明されたSCS131は、API Gateway Function(API-GWF)と呼ばれるかもしれない。あるいは、SCS131の機能は、SCSとAPI-GWFに分割して配置されるかもしれない。上述の実施形態で説明された技術思想は、これらの変形されたMTCのためのアーキテクチャにも適用することができる。
111 User Equipment (UE)
112 eNodeB
120 Evolved Packet Core (EPC)
121 Mobility Management Entity (MME)
122 Home Subscriber Server (HSS)
123 Machine Type Communication Inter Working Function (MTC-IWF)
124 Serving Gateway (S-GW)
125 Packet Data Network Gateway (P-GW)
130 Machine-to-Machine (M2M) サービスプラットフォーム
131 Service Capability Server (SCS)
132 MTC Application Server (AS)
Claims (24)
- Machine Type Communication(MTC)デバイスのモビリティ管理方法であって、
コアネットワーク内の第1のエンティティにおいて、前記MTCデバイスの移動特性を示す第1のメッセージを、前記コアネットワーク及び無線アクセスネットワークを含む移動通信ネットワークによって提供されるサービスを利用できるようにするためのアプリケーション・プログラミング・インタフェース(API)をMTCアプリケーションサーバに対して提供するMTCサービスプラットフォームから受信すること、及び
前記コアネットワーク内の第2のエンティティにおいて、(a)前記MTCデバイスに個別に適用される周期的な位置更新タイマの長さ及び(b)前記MTCデバイスに個別に適用されるページングエリアのサイズのうち少なくとも一方を前記移動特性に基づいて更新すること、
を備える、モビリティ管理方法。 - 前記第1のエンティティは、前記MTCサービスプラットフォームとの第1のシグナリング・インタフェースを有するとともに、前記第2のエンティティとの第2のシグナリング・インタフェースを有するコントロールプレーン・エンティティであり、
前記第2のエンティティは、前記MTCデバイスの加入者情報を管理する加入者サーバであり、
前記更新することは、前記第2のシグナリング・インタフェースを介して前記第1のエンティティから受信した前記移動特性に基づいて前記位置更新タイマの長さを更新することを含む、
請求項1に記載のモビリティ管理方法。 - 前記第1のエンティティは、MTC Interworking Function(MTC-IWF)エンティティを含み、
前記第2のエンティティは、Home subscriber Server(HSS)を含む、
請求項2に記載のモビリティ管理方法。 - 前記第1のエンティティは、前記MTCサービスプラットフォームとの第1のシグナリング・インタフェースを有するとともに、前前記MTCデバイスの加入者情報を管理する加入者サーバとの第2のシグナリング・インタフェースを有するコントロールプレーン・エンティティであり、
前記第2のエンティティは、前記MTCデバイスのモビリティ管理を行うエンティティであり、
前記モビリティ管理方法は、前記第1のエンティティから前記加入者サーバに前記移動特性を知らせることを更に備え、
前記更新することは、前記加入者サーバから受信した前記移動特性に基づいて前記ページングエリアのサイズを更新することを含む、
請求項1に記載のモビリティ管理方法。 - 前記第1のエンティティは、前記MTCサービスプラットフォームとの第1のシグナリング・インタフェースを有するとともに、前記第2のエンティティとの第2のシグナリング・インタフェースを有するコントロールプレーン・エンティティであり、
前記第2のエンティティは、前記MTCデバイスのモビリティ管理を行うエンティティであり、
前記モビリティ管理方法は、
前記第1のエンティティにおいて、前記MTCデバイスの加入者情報を管理する加入者サーバに問い合わせることによって前記MTCデバイスの前記モビリティ管理を行っている前記第2のエンティティを特定すること、及び
前記第1のエンティティから前記第2のエンティティに前記移動特性を知らせること、
を更に備え、
前記更新することは、前記第1のエンティティから受信した前記移動特性に基づいて前記ページングエリアのサイズを更新することを含む、
請求項1に記載のモビリティ管理方法。 - 前記第1のエンティティは、MTC Interworking Function(MTC-IWF)エンティティを含み、
前記第2のエンティティは、Mobility Management Entity(MME)を含む、
請求項4又は5に記載のモビリティ管理方法。 - 前記移動特性は、前記MTCデバイスの移動性の大きさを示す、請求項1~6のいずれか1項に記載のモビリティ管理方法。
- 前記MTCデバイスは、車両に取り付けられるデバイスであり、
前記移動特性は、前記車両が走行中であるか否か、又は前記車両のエンジンが始動されているか否かを示す、
請求項1~6のいずれか1項に記載のモビリティ管理方法。 - 前記MTCデバイスは、貨物に取り付けられるデバイスであり、
前記移動特性は、前記貨物が輸送中であるか否かを示す、
請求項1~6のいずれか1項に記載のモビリティ管理方法。 - 前記MTCデバイスは、ウェアラブルデバイスであり、
前記移動特性は、前記MTCデバイスを身に付けた人が外出中であるか又は家にいるかを示す、
請求項1~6のいずれか1項に記載のモビリティ管理方法。 - 前記MTCデバイスは、動物に取り付けられて動物を監視するにために使用されるデバイスであり、
前記移動特性は、前記動物が外出中であるか又は家にいるかを示す、
請求項1~6のいずれか1項に記載のモビリティ管理方法。 - コアネットワーク及び無線アクセスネットワークを含む移動通信ネットワークを介してMachine Type Communication(MTC)デバイスと通信するMTCアプリケーションサーバに対して前記移動通信ネットワークによって提供されるサービスを利用できるようにするためのアプリケーション・プログラミング・インタフェース(API)を提供するサービス能力エンティティによって行われる方法であって、
前記MTCデバイスの移動特性を示す第1のメッセージを前記コアネットワーク内のネットワーク・エンティティに送信することを備え、
前記第1のメッセージは、(a)前記MTCデバイスに個別に適用される周期的な位置更新タイマの長さ及び(b)前記MTCデバイスに個別に適用されるページングエリアのサイズのうち少なくとも一方の前記コアネットワークにおける更新を引き起こす、
方法。 - 前記移動特性は、前記MTCデバイスの移動性の大きさを示す、請求項12に記載の方法。
- 前記MTCデバイスは、車両に取り付けられるデバイスであり、
前記移動特性は、前記車両が走行中であるか否か、又は前記車両のエンジンが始動されているか否かを示す、
請求項12に記載の方法。 - 前記MTCデバイスは、貨物に取り付けられるデバイスであり、
前記移動特性は、前記貨物が輸送中であるか否かを示す、
請求項12に記載の方法。 - 前記MTCデバイスは、ウェアラブルデバイスであり、
前記移動特性は、前記MTCデバイスを身に付けた人が外出中であるか又は家にいるかを示す、
請求項12に記載の方法。 - 前記MTCデバイスは、動物に取り付けられて動物を監視するにために使用されるデバイスであり、
前記移動特性は、前記動物が外出中であるか又は家にいるかを示す、
請求項12に記載の方法。 - コアネットワーク内に配置される加入者サーバであって、
Machine Type Communication(MTC)デバイスの加入者情報を格納するよう構成されたメモリと、
前記メモリに結合され、前記MTCデバイスのモビリティ管理を支援するための制御手順を行うよう構成されたプロセッサと、
を備え、
前記制御手順は、
前記MTCデバイスの移動特性を、MTCサービスプラットフォームから、前記コアネットワーク内のネットワーク・エンティティを介して受信すること、及び
前記MTCデバイスに個別に適用される周期的な位置更新タイマの長さを前記移動特性に基づいて更新すること、
を含む、加入者サーバ。 - 前記制御手順は、前記移動特性に基づいて更新された前記位置更新タイマを、前記MTCデバイスのモビリティ管理を行うエンティティに知らせることを更に含む、請求項18に記載の加入者サーバ。
- コアネットワーク内に配置されるモビリティ管理エンティティであって、
メモリと、
前記メモリに結合され、Machine Type Communication(MTC)デバイスのモビリティ管理を行うよう構成されたプロセッサと、
を備え、
前記モビリティ管理は、
前記MTCデバイスの移動特性を、MTCサービスプラットフォームから、前記コアネットワーク内のネットワーク・エンティティを介して受信すること、及び
前記MTCデバイスに個別に適用されるページングエリアのサイズを前記移動特性に基づいて更新すること、
を含む、モビリティ管理エンティティ。 - コアネットワーク及び無線アクセスネットワークを含む移動通信ネットワークを介してMachine Type Communication(MTC)デバイスと通信するMTCサービスプラットフォームに対して前記移動通信ネットワークによって提供されるサービスを利用できるようにするためのアプリケーション・プログラミング・インタフェース(API)を提供するサービス能力エンティティであって、
メモリと、
前記メモリに結合され、請求項12~17のいずれか1項に記載の方法を実行するよう構成されたプロセッサと、
を備える、サービス能力エンティティ。 - コアネットワーク内に配置される加入者サーバによって行われる制御手順をコンピュータに行わせるためのプログラムを格納した非一時的なコンピュータ可読媒体であって、
前記制御手順は、
Machine Type Communication(MTC)デバイスの移動特性を、MTCサービスプラットフォームから、前記コアネットワーク内のネットワーク・エンティティを介して受信すること、及び
前記MTCデバイスに個別に適用される周期的な位置更新タイマの長さを前記移動特性に基づいて更新すること、
を備える、非一時的なコンピュータ可読媒体。 - コアネットワーク内に配置されるモビリティ管理エンティティによって行われる制御手順をコンピュータに行わせるためのプログラムを格納した非一時的なコンピュータ可読媒体であって、
前記制御手順は、
Machine Type Communication(MTC)デバイスの移動特性を、MTCサービスプラットフォームから、前記コアネットワーク内のネットワーク・エンティティを介して受信すること、及び
前記MTCデバイスに個別に適用されるページングエリアのサイズを前記移動特性に基づいて更新すること、
を備える、非一時的なコンピュータ可読媒体。 - コアネットワーク及び無線アクセスネットワークを含む移動通信ネットワークを介してMachine Type Communication(MTC)デバイスと通信するMTCサービスプラットフォームに対して前記移動通信ネットワークによって提供されるサービスを利用できるようにするためのアプリケーション・プログラミング・インタフェース(API)を提供するサービス能力エンティティによって行われる制御手順をコンピュータに行わせるためのプログラムを格納した非一時的なコンピュータ可読媒体であって、
前記制御手順は、前記MTCデバイスの移動特性を示す第1のメッセージを前記コアネットワーク内のネットワーク・エンティティに送信することを備え、
前記第1のメッセージは、(a)前記MTCデバイスに個別に適用される周期的な位置更新タイマの長さ及び(b)前記MTCデバイスに個別に適用されるページングエリアのサイズのうち少なくとも一方の前記コアネットワークにおける更新を引き起こす、
非一時的なコンピュータ可読媒体。
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JPWO2016009579A1 (ja) | 2017-05-25 |
US20170150343A1 (en) | 2017-05-25 |
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