WO2016157753A1 - 制御エンティティ及びその方法 - Google Patents
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- WO2016157753A1 WO2016157753A1 PCT/JP2016/001366 JP2016001366W WO2016157753A1 WO 2016157753 A1 WO2016157753 A1 WO 2016157753A1 JP 2016001366 W JP2016001366 W JP 2016001366W WO 2016157753 A1 WO2016157753 A1 WO 2016157753A1
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
- H04W28/22—Negotiating communication rate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
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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
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
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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
Definitions
- the disclosure herein relates to mobile communication networks, and more particularly to a control entity for exposing services and capabilities provided by network entities within the mobile communication network to external application providers. .
- Non-Patent Document 1 discloses an architecture including a function for exposing services and capabilities provided by a network entity in a mobile communication network to an external application provider. is doing. This function is called Service Capability Exposure Function (SCEF). SCEF provides a means of securely disclosing services and capabilities provided by 3GPP network entities to external application providers via 3GPP network interfaces. SCEF provides access to network capabilities through a network application programming interface (API).
- the network API may be defined by, for example, Open Mobile Alliance (OMA), Global System for Mobile Communications Association (GSMA), or other standardization bodies.
- Non-Patent Document 1 further describes the network resource of a mobile communication network (ie, 3GPP network) based on information about a communication pattern (communication pattern) of a wireless terminal (User Equipment (UE)) provided by an external application provider.
- a communication pattern communication pattern
- UE User Equipment
- the SCEF receives information on the UE communication pattern from an external application provider. Further, the SCEF acquires network parameters for the network entity (e.g., core network node) from the received communication pattern information, and provides the acquired network parameters to an appropriate network entity.
- the network entity e.g., core network node
- the UE communication pattern received by the SCEF from the application provider includes, for example, a data traffic communication pattern (Data traffic pattern), a mobility communication pattern (Mobility communication pattern), or both.
- Data traffic communication patterns are indications indicating whether or not the communication is periodic (Periodiciocommunication indicator), communication duration (communication duration time), communication cycle (periodic time), scheduled communication time (scheduled communication time) ), And average data volume per communication (average data volume per communication).
- Examples of mobility communication patterns are: whether or not it is stationary (Stationary indication), stationary location (Stationary location), mobility area (eg, cell list or tracking area (TA) list), and average moving speed (Average mobility speed).
- the SCEF receives information on the data traffic communication pattern and / or mobility communication pattern from the application provider, and sends the information or the network parameter obtained from the information to the Mobility Management Management Entity (MME) via the Home Subscriber Server (HSS).
- MME Mobility Management Management Entity
- HSS Home Subscriber Server
- the MME obtains Expected
- Expected UE Activity Behaviour includes, for example, the average time that the UE stays in ECM-CONNECTED and the average time that the UE stays in ECM-IDLE.
- the MME may further obtain an Expected Handover Interval based on the mobility communication pattern.
- Expected Handover Interval represents an expected time interval (time interval) of inter-base station (inter-eNB) handover.
- Information obtained by the MME including Expected UE Activity Behaviour and Expected Handover Interval is called core network assistance information (CN Assistance Information).
- the MME supplies CN assistance information related to the UE to the base station (eNB) when setting up the S1 signaling connection in response to the UE attachment or service request.
- the eNB uses CN assistance information, for example, to reduce the number of CONNECTED-IDLE transitions.
- SCEF receives information about communication patterns from external application providers.
- the transmission rate of communication pattern information by an external application provider or the trigger condition (e.g., threshold value) that triggers transmission of communication pattern information may not be set appropriately.
- the transmission rate of communication pattern information from an external application provider is excessive, the load on the SCEF or 3GPP network may increase.
- the transmission trigger condition of the communication pattern information is not appropriate, network resource optimization may not be performed properly.
- One of the objects that the embodiments disclosed herein intend to achieve is to enable a control entity (eg, SCEF) that provides an interface to an external application provider to properly receive communication pattern information. It is to provide a contributing device, method and program. It should be noted that this objective is only one of several objectives that the embodiments disclosed herein intend to achieve. Other objects or problems and novel features will become apparent from the description of the present specification or the accompanying drawings.
- SCEF control entity
- the control entity includes a memory and at least one processor coupled to the memory.
- the at least one processor is configured to communicate with at least one network entity in the mobile communication network.
- the at least one processor is configured to provide at least one interface for making services provided by the mobile communication network available to at least one application layer entity.
- the at least one processor is configured to receive first information regarding a communication pattern of a wireless terminal via the at least one interface.
- the at least one processor is configured to provide the first information or network parameters derived from the first information to the at least one network entity. Further, the at least one processor is configured to perform communication control related to transmission or reception of the first information.
- the communication control includes: (a) filtering a plurality of notification messages carrying the first information according to a filtering rule; and (b) setting or changing a transmission policy of the first information according to the at least one application. Requesting a layer entity and (c) applying different priorities to the plurality of notification messages.
- a method performed by a control entity includes receiving first information regarding a communication pattern of a wireless terminal from at least one application layer entity via at least one interface, the first information Or providing network parameters derived from the first information to at least one network entity, and performing communication control relating to transmission or reception of the first information.
- the communication control includes: (a) filtering a plurality of notification messages carrying the first information according to a filtering rule; and (b) setting or changing a transmission policy of the first information according to the at least one application. Requesting a layer entity and (c) applying different priorities to the plurality of notification messages.
- 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.
- LTE Long Term Evolution
- LTE-Advanced systems
- these embodiments are not limited to LTE / LTE-Advanced systems, but other mobile communication networks or systems such as 3GPP Universal Mobile Telecommunications System (UMTS), 3GPP2 CDMA2000 system, Global System Mobile for communications ( The present invention may be applied to a GSM (registered trademark) / General packet radio service (GPRS) system, a WiMAX system, and the like.
- GSM registered trademark
- GPRS General packet radio service
- FIG. 1 shows a configuration example of a mobile communication network according to some embodiments including this embodiment.
- the Service Capability Exposure Function (SCEF) entity 1 discloses services and capabilities provided by one or more network entities 2 in the mobile communication network to one or more application layer entities 3 ( control entity that acts to expose).
- SCEF1 securely discloses to the application layer entity 3 the services and capabilities provided by the network entity 2 over the 3GPP network interface.
- SCEF entity 1 provides access to network capabilities via a network application programming interface (API).
- API network application programming interface
- Each network entity 2 is connected to the SCEF entity 1 through the 3GPP interface, and provides services and capabilities to the application layer entity 3 through the SCEF entity 1.
- the network entity 2 is a control plane entity of the 3GPP network, such as HSS, MME, Serving GPRS Support Node (SGSN), Policy and Charging Rule Function (PCRF), Short Message Service-Service Centre (SMS-SC), Call Session It includes at least one of Control Function (SCSF) and Machine Type Communication Communication Function (MTC-IWF).
- the network entity 2 may further include a user plane (data plane) entity of the 3GPP network, for example, a Serving Gateway (S-GW) and a Packet Data Network Gateway (P-GW).
- S-GW Serving Gateway
- P-GW Packet Data Network Gateway
- the network entity 2 further includes an entity related to optimization of network resources, such as an Operation Administration and Maintenance (OAM) server, a Software-Defined Network (SDN) controller, and a Self-Organizing (Network (SON) / Element Management System (EMS). May be included.
- OAM Operation Administration and Maintenance
- SDN Software-Defined Network
- EMS Self-Organizing
- SON Network
- EMS Element Management System
- Each application layer entity 3 communicates with the SCEF entity 1 via one or more APIs.
- Each application layer entity 3 is sometimes called an application server (AS), sometimes called an application provider, or simply called an application.
- AS application server
- SCEF entity 1 is controlled by a mobile operator (3GPP operator) or by another operator or a third party trusted by a business partner, eg 3GPP operator.
- the application layer entity 3 may be controlled by a 3GPP operator, or may be controlled by a business partner, eg, another operator trusted by the 3GPP operator or a third party. Alternatively, the application layer entity 3 may be controlled by a third party.
- the trust domain in FIG. 1 indicates the range controlled by the 3GPP operator or its business partner.
- SCEF entity 1 means a functional entity.
- SCEF entity 1 may include multiple sub-functional entities.
- the SCEF entity 1 may be implemented using a plurality of physical entities (i.e., a computer and a network device).
- the intermediation framework between the network entity 2 and the application layer entity 3 such as the SCEF entity 1 is sometimes called a service platform.
- a mechanism such as SCEF entity 1 that provides an API to application layer entity 3 is called an exposure layer in OMA.
- the SCEF entity 1 is configured to receive information (communication pattern information) related to a communication pattern of a wireless terminal (UE) from one or more application layer entities 3 via one or more APIs.
- the SCEF entity 1 is further configured to provide at least one of the received communication pattern information or derived network parameters to one or more network entities 2.
- the communication pattern information received by the SCEF entity 1 includes, for example, a data traffic communication pattern (Data traffic pattern), a mobility communication pattern (Mobility communication pattern), or both.
- Data traffic pattern is an indication of whether or not it is periodic communication (Periodic communication indicator), communication duration (communication duration time), communication period (periodic time), scheduled Includes communication time (scheduled communication time) and average data volume per communication (average data volume perunicommunication).
- Examples of mobility communication patterns are: whether or not it is stationary (Stationary indication), stationary location (Stationary location), mobility area (eg, cell list or tracking area (TA) list), and average moving speed (Average mobility speed).
- the network parameter obtained from the communication pattern information by SCEF entity 1 may be Expected UE UE Behavior information.
- Expected UE Behaviour information includes at least one of Expected UE Activity Behaviour and Expected Handover Interval.
- Behaviour includes the average time for which UE stays in ECM-CONNECTED, and the average time for which ECM-IDLE stays, for example.
- Expected Handover Interval represents an expected time interval (time interval) of inter-base station (inter-eNB) handover.
- the SCEF entity 1 may communicate with the HSS in order to obtain network parameters obtained from the communication pattern information.
- the SCEF entity 1 is configured to perform communication control related to transmission or reception of communication pattern information.
- the communication control relates to at least one of transmission of communication pattern information by the application layer entity 3 and reception of communication pattern information by the SCEF entity 1.
- the communication control may be performed by enforcing or applying a transmission policy of communication pattern information to the application layer entity 3. Additionally or alternatively, the communication control may be performed by enforcing or applying the reception policy of the communication pattern information to the SCEF entity 1.
- the transmission policy means any restriction imposed on (applied to) transmission of communication pattern information
- the reception policy refers to some restriction imposed (applied) on reception of communication pattern information. means.
- communication control by SCEF entity 1 may include filtering a plurality of notification messages carrying communication pattern information according to filtering rules.
- the filtering rule is an example of a reception policy.
- the filtering may be to completely block reception from a specific application layer entity 3 or reception of a specific type of communication pattern information. Alternatively, the filtering may be to reduce the reception rate.
- the communication control by the SCEF entity 1 may include requesting one or more application layer entities 3 to set or change the transmission policy of the communication pattern information.
- the transmission policy includes, for example, at least one of a transmission rate and a transmission trigger condition (e.g., threshold value).
- the transmission trigger condition may be, for example, that a predetermined parameter (e.g., average communication duration, average communication interval, or average moving speed) or a change amount thereof exceeds a threshold value.
- the transmission trigger condition may be that a predetermined parameter or a change amount thereof exceeds a threshold exceeds a predetermined waiting time (hold ⁇ time).
- the waiting time (hold time) may be called a guard time (guard time) or Time ⁇ ⁇ to Trigger (TTT).
- communication control by SCEF entity 1 may apply different priorities to multiple notification messages.
- the priority is an example of a reception policy or a transmission policy.
- SCEF entity 1 has a higher notification message (carrying communication pattern information) from a first application layer entity with a higher priority than a notification message from a second application layer entity with a lower priority. You may receive by frequency.
- the SCEF entity 1 may adjust a reception policy such as a filtering rule or a transmission policy such as a transmission rate and a transmission trigger condition.
- the SCEF entity 1 may perform communication control (eg, execution of a policy) in units of the application layer entity 3 or in units of message types (units of types of communication pattern information). It may be performed in units of UEs or in units of UEs (UE groups). The UE group may be defined by, for example, the type of UE, or may be defined by an application or service used by the UE.
- the SCEF entity 1 may further determine the setting or change of communication control related to reception or transmission of communication pattern information (e.g., setting or changing the reception or transmission policy) as follows.
- the SCEF entity 1 relates to the communication layer pattern 3 when the reception rate (reception frequency) of communication pattern information from a certain application layer entity 3 exceeds a reference rate.
- the communication control eg, reception or transmission policy
- the SCEF entity 1 may discard or ignore communication pattern information exceeding the reference rate according to the filtering rule.
- the SCEF entity 1 may return a rejection message to the transmission source application layer entity 3.
- the SCEF entity 1 may transmit a transmission rate reduction request or a transmission trigger condition change request regarding communication pattern information to the transmission source application layer entity 3 in order to reduce the transmission rate. Thereby, the load of the SCEF entity 1 and one or a plurality of network entities 2 can be reduced.
- the SCEF entity 1 may be configured to determine communication control (e.g., policy) related to communication pattern information based on a network performance indicator (performance indicator).
- the network performance index represents the effect of network optimization (network resource optimization) performed based on communication pattern information from one or a plurality of application layer entities 3.
- Network performance indicators include, for example, paging failure rate, CONNECTED-IDLE transition count, connection request (eg, Service ⁇ Request) reception count for transition from IDLE state to CONNECTED state, and Non-AccessCONNECTStratum (NAS) backoff It relates to at least one of the number of connection rejections based on.
- the SCEF entity 1 determines the priority of the application layer entity 3 or the communication pattern information type that has a large contribution to network resource optimization based on the network performance index (in other words, the contribution to performance improvement is large). It may be increased, the transmission rate may be increased, or the transmission trigger condition may be relaxed.
- the SCEF entity 1 has a small contribution to network resource optimization (in other words, a small contribution to performance improvement), even if the priority of the application layer entity 3 or the communication pattern information type is lowered.
- the transmission rate may be lowered or the transmission trigger condition may be tightened.
- FIG. 2 is a sequence diagram showing an example (process 200) of a communication control procedure related to reception or transmission of communication pattern information.
- SCEF entity 1 receives a message carrying communication pattern information from one or more application layer entities 3.
- the SCEF entity 1 transmits network parameters obtained from the received communication pattern information to one or more network entities 2.
- the network entity 2 may use the received network parameters, for example, for network resource optimization (e.g., tuning of parameters related to CONNECTED-IDLE transition by a base station (eNodeB)).
- the SCEF entity 1 may send network parameters to the HSS as the network entity 2.
- the SCEF entity 1 executes communication control (e.g., reception policy or execution of transmission policy) related to reception or transmission of communication pattern information (or a message carrying this).
- communication control e.g., reception policy or execution of transmission policy
- the SCEF entity 1 determines the communication control content (eg, reception policy or transmission policy), the reception history (e, g., Past reception rate, reception frequency) of communication pattern information, Or you may consider the result of the optimization of the network resource based on communication pattern information.
- the SCEF entity 1 receives a message carrying communication pattern information from one or more application layer entities 3 according to the executed communication control.
- the SCEF entity 1 transmits network parameters obtained from the received communication pattern information to one or more network entities 2.
- FIG. 3 is a flowchart showing an example of communication control operation by the SCEF entity 1 (process 300).
- the SCEF entity 1 generates or updates the filtering rule in units of the application layer entity 3, a unit of message (communication pattern information) type, a unit of UE, or a unit of UE group.
- the SCEF entity 1 filters notification messages (carrying communication pattern information) from one or more application layer entities 3 according to the generated or updated filtering rules.
- FIG. 4 is a flowchart showing an example of communication control operation (process 400) by the SCEF entity 1.
- the SCEF entity 1 generates or updates the priority in units of the application layer entity 3, a unit of message (communication pattern information) type, a unit of UE, or a unit of UE group.
- SCEF entity 1 applies the generated or updated priority to the notification message (carrying communication pattern information) from one or more application layer entities 3.
- FIG. 5 is a flowchart showing an example of communication control operation (process 500) by the SCEF entity 1.
- the SCEF entity 1 generates or updates a transmission policy in units of the application layer entity 3, a unit of message (communication pattern information) type, a unit of UE, or a unit of UE group.
- the transmission policy relates to at least one of a transmission rate and a transmission trigger condition, for example.
- the SCEF entity 1 sends the transmission policy to one or more application layer entities 3 to enforce the generated or updated transmission policy.
- the SCEF entity 1 executes communication control related to reception of communication pattern information by the SCEF entity 1, or communication patterns by one or a plurality of application layer entities 3.
- the communication control related to the transmission of information is configured to be executed. Therefore, the SCEF entity 1 can appropriately receive the communication pattern information.
- FIG. 6 is a sequence diagram showing an example (processing 600) of a communication control procedure related to reception or transmission of communication pattern information.
- SCEF entity 1 receives a message carrying communication pattern information from one or more application layer entities 3.
- the SCEF entity 1 sends the network parameters obtained from the received communication pattern information to one or more network entities 2.
- the one or more network entities 2 use the received network parameters for network resource optimization (e.g., tuning of parameters related to CONNECTED-IDLE transition by a base station (eNodeB)).
- network resource optimization is performed by a network entity 2 (eg, MME, OAM, SON / EMS) that is different from the network entity 2 (eg, HSS) that directly receives network parameters from the SCEF entity 1. May be.
- the SCEF entity 1 receives the network performance index from the network optimization controller 4.
- the network performance index indicates a result of network resource optimization based on the communication pattern information (601) or the network parameter (602) obtained therefrom.
- the network optimization controller 4 may be an OAM server, for example.
- SCEF entity 1 may receive network performance indicators from either one or more network entities 2 instead of network optimization controller 4.
- the network performance index includes, for example, the paging failure rate, the number of CONNECTED-IDLE transitions, the number of receptions of connection requests (eg, Service Request) for transitioning from the IDLE state to the CONNECTED state, and Non-Access Stratum. (NAS) Relates to at least one of connection refusals based on backoff.
- NAS Non-Access Stratum
- the SCEF entity 1 In block 604, the SCEF entity 1 generates or updates communication control content (e.g., reception policy or transmission policy) related to reception or transmission of communication pattern information based on the received network performance index, and executes it. In block 605, the SCEF entity 1 receives a message carrying communication pattern information from one or more application layer entities 3 according to the executed communication control. In block 606, the SCEF entity 1 transmits network parameters obtained from the received communication pattern information to one or more network entities 2.
- communication control content e.g., reception policy or transmission policy
- the SCEF entity 1 optimizes network resources based on communication pattern information when determining the content and execution of communication control related to reception or transmission of communication pattern information. It is configured to take into account the results of optimization. Therefore, the SCEF entity 1 can preferentially handle the application layer entity 3 or the communication pattern type that greatly contributes to the optimization of network resources.
- the SCEF entity 1 of the present embodiment is configured to determine a transmission policy based on the UE default characteristics and transmit the determined transmission policy to one or more application layer entities 3.
- the transmission policy relates to at least one of a transmission rate and a transmission trigger condition, for example.
- the UE default characteristics indicate UE data traffic characteristics or mobility characteristics during normal operation.
- the UE default characteristic may be a reference value (default value) of a data traffic communication pattern, a mobility communication pattern, or both.
- the default characteristics of the UE may include, for example, a communication duration, a communication period, an allowable delay time, or any combination thereof. Additionally or alternatively, the default characteristics of the UE may include, for example, the size of the mobility area or the moving speed, or a combination thereof.
- the SCEF entity 1 may determine at least one of a threshold value and a waiting time included in the transmission trigger condition based on, for example, a reference value indicated by the UE default characteristic.
- FIG. 7 is a flowchart showing an example of a transmission policy determination procedure (process 700) by the SCEF entity 1.
- SCEF entity 1 receives UE default characteristics.
- the SCEF entity 1 determines a transmission policy for communication pattern information based on the UE default characteristics.
- the SCEF entity 1 sends the determined transmission policy to one or more application layer entities 3.
- SCEF entity 1 may receive UE default characteristics from application layer entity 3 as shown in FIG.
- FIG. 8 is a sequence diagram showing an example (process 800) of determining a transmission policy of communication pattern information.
- the application layer entity 3 sends UE default characteristics (ie, default communication pattern) to the SCEF entity 1 either spontaneously or in response to a request from the SCEF entity 1.
- the SCEF entity 1 determines a transmission policy of communication pattern information to be applied for the UE based on the received UE default characteristic.
- the SCEF entity 1 transmits the determined transmission policy to the application layer entity 3 that is the source of the UE default characteristics (801).
- the SCEF entity 1 may transmit the same transmission policy to other application layer entities 3.
- the SCEF entity 1 may receive UE default characteristics from one or a plurality of network entities 2, specifically, the HSS 5.
- the HSS 5 is a database (subscriber server) that manages subscriber information related to the UE.
- FIG. 9 shows an example of a procedure for determining a transmission policy for communication pattern information (processing 900).
- SCEF entity 1 queries HSS5 and receives UE default characteristics from HSS5.
- the SCEF entity 1 determines a transmission policy of communication pattern information to be applied for the UE based on the received UE default characteristics.
- the SCEF entity 1 sends the determined transmission policy to one or more application layer entities 3.
- the SCEF entity 1 is configured to receive the UE default characteristics and determine the transmission policy of the communication pattern information based on the UE default characteristics. Therefore, an appropriate transmission policy can be enforced to one or a plurality of application layer entities 3 according to UE default characteristics (normal characteristics).
- FIG. 10 is a block diagram illustrating a configuration example of the SCEF entity 1.
- the SCEF entity 1 includes a network interface 1001, a processor 1002, and a memory 1003.
- the network interface 1001 is used to communicate with one or more network entities 2 and one or more application layer entities 3.
- the network interface 1001 may include a plurality of logical or physical interfaces.
- the network interface 1001 may include, for example, one or a plurality of network interface cards (NICs) conforming to IEEE 802.3 series.
- NICs network interface cards
- the processor 1002 reads out and executes software (computer program) from the memory 1003 to execute processing related to SCEF.
- the processor 1002 may be, for example, a microprocessor, a Micro Processing Unit (MPU), or a Central Processing Unit (CPU).
- the processor 1002 may include a plurality of processors.
- the memory 1003 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 any combination thereof.
- Memory 1003 may include storage that is physically located away from processor 1002. In this case, the processor 1002 may access the memory 1003 via the network interface 1001 or another I / O interface not shown.
- the memory 1003 may store a software module (computer program) including an instruction group and data for performing processing by the SCEF entity 1 described in the plurality of embodiments.
- the processor 1002 may be configured to perform the processing of the SCEF entity 1 described in the above embodiments by reading the software module from the memory 1003 and executing the software module.
- the memory 1003 is used to store a software module group including a 3GPP interface module 1004, an API module 1005, a message processing module 1006, and a policy control module 1007.
- the 3GPP interface module 1004 includes a group of instructions and data for executing protocol processing related to the 3GPP interface with one or more network entities 2.
- the API module 1005 includes a group of instructions and data for executing API protocol processing for communicating with one or more application layer entities 3.
- the message processing module 1006 includes a group of instructions and data for performing processing to analyze communication pattern information and obtain network parameters.
- the policy control module 1007 includes a group of instructions and data for generating a reception policy (or transmission policy) of communication pattern information and executing processing for executing the reception policy (or transmission policy).
- the processor 1002 reads out these software modules from the memory 1003 and executes them to perform processing by the SCEF entity 1 described in the above embodiment.
- the one or more processors included in the SCEF entity 1 include one or more instructions including instructions for causing a computer to execute the algorithm described with reference to the drawings. Run the program.
- the program can be stored and supplied to a computer using various types of non-transitory computer readable media.
- Non-transitory computer readable media include various types of tangible storage media (tangible storage medium).
- 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 communication pattern information may be communication pattern information regarding a group of UEs.
- the SCEF entity 1 may enforce the reception or transmission policy of communication pattern information in units of UEs.
- the group of UEs may be defined by, for example, the type of UE, or may be defined by an application or service used by the UE.
- the SCEF entity 1 may generate a reception policy for communication pattern information based on UE default characteristics.
- SCS Service Capability Exposure Function
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Abstract
Description
図1は、本実施形態を含むいくつかの実施形態に係る移動通信ネットワークの構成例を示している。Service Capability Exposure Function(SCEF)エンティティ1は、移動通信ネットワーク内の1又は複数のネットワークエンティティ2によって提供されるサービス(services)および能力(capabilities)を1又は複数のアプリケーション・レイヤ・エンティティ3に開示(expose)するよう動作する制御エンティティである。SCEF1は、3GPPネットワークインタフェースによってネットワークエンティティ2から提供されるサービス及び能力をアプリケーション・レイヤ・エンティティ3に安全に開示する。SCEFエンティティ1は、ネットワーク能力(network capabilities)へのアクセスをネットワーク・アプリケーション・プログラミング・インタフェース(API)を介して提供する。
本実施形態では、ネットワークリソースの最適化の結果を利用した通信制御の具体例が説明される。本実施形態に係る移動通信ネットワークの構成例は図1と同様である。
本実施形態では、通信パターン情報の受信又は送信に関する通信制御の変形例が説明される。本実施形態に係る移動通信ネットワークの構成例は図1と同様である。本実施形態のSCEFエンティティ1は、UEデフォルト特性に基づいて送信ポリシを決定し、決定された送信ポリシを1又は複数のアプリケーション・レイヤ・エンティティ3に送信するよう構成されている。当該送信ポリシは、例えば、送信レート及び送信トリガー条件の少なくとも一方に関する。
上述の複数の実施形態は、各々独立に実施されてもよいし、適宜組み合わせて実施されてもよい。
2 ネットワークエンティティ
3 アプリケーション・レイヤ・エンティティ
4 ネットワーク最適化コントローラ
5 Home Subscriber Server(HSS)
Claims (24)
- メモリと、
前記メモリに結合された少なくとも1つのプロセッサと、
を備え、
前記少なくとも1つのプロセッサは、
移動通信ネットワーク内の少なくとも1つのネットワークエンティティと通信するよう構成され、
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少なくとも1つのアプリケーション・レイヤ・エンティティが利用できるようにするための少なくとも1つのインタフェースを提供するよう構成され、
無線端末の通信パターンに関する第1の情報を前記少なくとも1つのインタフェースを介して受信するよう構成され、
前記第1の情報又は前記第1の情報から得られる(derived)ネットワークパラメータを前記少なくとも1つのネットワークエンティティに提供するよう構成され、
前記第1の情報の送信又は受信に関する通信制御を行うよう構成され、
前記通信制御は、
フィルタリングルールに従って、前記第1の情報を運ぶ複数の通知メッセージをフィルタリングすること、
前記第1の情報の送信ポリシの設定または変更を、前記少なくとも1つのアプリケーション・レイヤ・エンティティに要求すること、及び
前記複数の通知メッセージに異なる優先度を適用すること、
のうち少なくとも1つを含む、
制御エンティティ。 - 前記少なくとも1つのプロセッサは、前記第1の情報に基づいて行われたネットワーク最適化の効果を表すネットワーク性能指標に基づいて、前記通信制御を決定するよう構成されている、
請求項1に記載の制御エンティティ。 - 前記ネットワーク性能指標は、ページング失敗率、CONNECTED-IDLE遷移回数、IDLE状態からCONNECTED状態に遷移するための接続要求の受信回数、及びバックオフに基づく接続拒否の回数のうち少なくとも1つに関する、
請求項2に記載の制御エンティティ。 - 前記通信制御は、前記複数の通知メッセージに異なる前記優先度を適用することを含み、
前記優先度を適用することは、優先度の高い第1のアプリケーション・レイヤ・エンティティからの第1の通知メッセージを優先度の低い第2のアプリケーション・レイヤ・エンティティからの第2の通知メッセージよりも高い頻度で受信することを含む、
請求項1~3のいずれか1項に記載の制御エンティティ。 - 前記通信制御は、前記送信ポリシの設定または変更を要求することを含み、
前記送信ポリシの設定または変更を要求することは、前記無線端末のデフォルト特性に基づいて前記送信ポリシを決定し、前記決定された送信ポリシを前記少なくとも1つのアプリケーション・レイヤ・エンティティに送信することを含む、
請求項1~4のいずれか1項に記載の制御エンティティ。 - 前記少なくとも1つのプロセッサは、前記デフォルト特性を前記少なくとも1つのネットワークエンティティから受信するよう構成されている、
請求項5に記載の制御エンティティ。 - 前記少なくとも1つのネットワークエンティティは、加入者サーバを含み、
前記少なくとも1つのプロセッサは、前記デフォルト特性を前記加入者サーバから受信するよう構成されている、
請求項5に記載の制御エンティティ。 - 前記送信ポリシは、前記第1の情報の送信レート及び前記第1の情報の送信のトリガー条件の少なくとも一方を含む、
請求項1~7のいずれか1項に記載の制御エンティティ。 - 前記第1の情報は、トラッフィク量に関する通信パターン、通信継続時間に関する通信パターン、通信間隔に関する通信パターン、及び移動性に関する通信パターンのうち少なくとも1つに関する、
請求項1~8のいずれか1項に記載の制御エンティティ。 - 前記少なくとも1つのインタフェースの各々は、アプリケーション・プログラミング・インタフェース(API)である、
請求項1~9のいずれか1項に記載の制御エンティティ。 - 移動通信ネットワーク内の少なくとも1つのネットワークエンティティと通信するよう構成され、且つ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少なくとも1つのアプリケーション・レイヤ・エンティティが利用できるようにするための少なくとも1つのインタフェースを提供するよう構成された制御エンティティによって行われる方法であって、
無線端末の通信パターンに関する第1の情報を前記少なくとも1つのインタフェースを介して受信すること、
前記第1の情報又は前記第1の情報から得られるネットワークパラメータを前記少なくとも1つのネットワークエンティティに提供すること、及び
前記第1の情報の送信又は受信に関する通信制御を行うこと、
を備え、
前記通信制御は、
フィルタリングルールに従って、前記第1の情報を運ぶ複数の通知メッセージをフィルタリングすること、
前記第1の情報の送信ポリシの設定または変更を、前記少なくとも1つのアプリケーション・レイヤ・エンティティに要求すること、及び
前記複数の通知メッセージに異なる優先度を適用すること、
のうち少なくとも1つを含む、
方法。 - 前記第1の情報に基づいて行われたネットワーク最適化の効果を表すネットワーク性能指標に基づいて、前記通信制御を決定することをさらに備える、
請求項11に記載の方法。 - 前記ネットワーク性能指標は、ページング失敗率、CONNECTED-IDLE遷移回数、IDLE状態からCONNECTED状態に遷移するための接続要求の受信回数、及びバックオフに基づく接続拒否の回数のうち少なくとも1つに関する、
請求項12に記載の方法。 - 前記通信制御は、前記複数の通知メッセージに異なる前記優先度を適用することを含み、
前記優先度を適用することは、優先度の高い第1のアプリケーション・レイヤ・エンティティからの第1の通知メッセージを優先度の低い第2のアプリケーション・レイヤ・エンティティからの第2の通知メッセージよりも高い頻度で受信することを含む、
請求項11~13のいずれか1項に記載の方法。 - 前記通信制御は、前記送信ポリシの設定または変更を要求することを含み、
前記送信ポリシの設定または変更を要求することは、前記無線端末のデフォルト特性に基づいて前記送信ポリシを決定し、前記決定された送信ポリシを前記少なくとも1つのアプリケーション・レイヤ・エンティティに送信することを含む、
請求項11~14のいずれか1項に記載の方法。 - 前記デフォルト特性を前記少なくとも1つのネットワークエンティティから受信することをさらに備える、
請求項15に記載の方法。 - 前記デフォルト特性を、前記少なくとも1つのネットワークエンティティに含まれる加入者サーバから受信することをさらに備える、
請求項15に記載の方法。 - 前記送信ポリシは、前記第1の情報の送信レート及び前記第1の情報の送信のトリガー条件の少なくとも一方を含む、
請求項11~17のいずれか1項に記載の方法。 - 前記第1の情報は、トラッフィク量に関する通信パターン、通信継続時間に関する通信パターン、通信間隔に関する通信パターン、及び移動性に関する通信パターンのうち少なくとも1つに関する、
請求項11~18のいずれか1項に記載の方法。 - 移動通信ネットワーク内の少なくとも1つのネットワークエンティティと通信するよう構成され、且つ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少なくとも1つのアプリケーション・レイヤ・エンティティが利用できるようにするための少なくとも1つのインタフェースを提供するよう構成された制御エンティティによって行われる方法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、
前記方法は、
無線端末の通信パターンに関する第1の情報を前記少なくとも1つのインタフェースを介して受信すること、
前記第1の情報又は前記第1の情報から得られるネットワークパラメータを前記少なくとも1つのネットワークエンティティに提供すること、及び
前記第1の情報の送信又は受信に関する通信制御を行うこと、
を備え、
前記通信制御は、
フィルタリングルールに従って、前記第1の情報を運ぶ複数の通知メッセージをフィルタリングすること、
前記第1の情報の送信ポリシの設定または変更を、前記少なくとも1つのアプリケーション・レイヤ・エンティティに要求すること、及び
前記複数の通知メッセージに異なる優先度を適用すること、
のうち少なくとも1つを含む、
非一時的なコンピュータ可読媒体。 - 移動通信ネットワーク内の少なくとも1つのネットワークエンティティと、
少なくとも1つのアプリケーション・レイヤ・エンティティと、
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前記少なくとも1つのアプリケーション・レイヤ・エンティティが利用できるようにするための少なくとも1つのインタフェースを提供するよう構成された制御エンティティと、
を備え、
前記制御エンティティは、さらに、
無線端末の通信パターンに関する第1の情報を前記少なくとも1つのインタフェースを介して受信するよう構成され、
前記第1の情報又は前記第1の情報から得られるネットワークパラメータを前記少なくとも1つのネットワークエンティティに提供するよう構成され、
前記第1の情報の送信又は受信に関する通信制御を行うよう構成され、
前記通信制御は、
フィルタリングルールに従って、前記第1の情報を運ぶ複数の通知メッセージをフィルタリングすること、
前記第1の情報の送信ポリシの設定または変更を、前記少なくとも1つのアプリケーション・レイヤ・エンティティに要求すること、及び
前記複数の通知メッセージに異なる優先度を適用すること、
のうち少なくとも1つを含む、
システム。 - 前記通信制御は、前記送信ポリシの設定または変更を要求することを含み、
前記送信ポリシの設定または変更を要求することは、前記無線端末のデフォルト特性に基づいて前記送信ポリシを決定し、前記決定された送信ポリシを前記少なくとも1つのアプリケーション・レイヤ・エンティティに送信することを含む、
請求項21に記載のシステム。 - 前記少なくとも1つのネットワークエンティティは、前記デフォルト特性を前記制御エンティティに送信するよう構成されている、
請求項22に記載のシステム。 - 前記少なくとも1つのアプリケーション・レイヤ・エンティティは、前記送信ポリシを受信し、前記送信ポリシに従って前記第1の情報を送信するよう構成されている、
請求項21~23のいずれか1項に記載のシステム。
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