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WO2025017686A1 - Procédé et système de fourniture d'informations de tranche dans un réseau de communication - Google Patents

Procédé et système de fourniture d'informations de tranche dans un réseau de communication Download PDF

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Publication number
WO2025017686A1
WO2025017686A1 PCT/IN2024/051253 IN2024051253W WO2025017686A1 WO 2025017686 A1 WO2025017686 A1 WO 2025017686A1 IN 2024051253 W IN2024051253 W IN 2024051253W WO 2025017686 A1 WO2025017686 A1 WO 2025017686A1
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WIPO (PCT)
Prior art keywords
slice
unit
tracking area
network
nssf
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PCT/IN2024/051253
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English (en)
Inventor
Adityakar Jha
Aayush Bhatnagar
Ankush KHANDELWAL
Hemant Kumar Singh
Meenakshi Sarohi
Santosh Kumar YADAV
Yog VASHISHTH
Anurag Sinha
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Jio Platforms Ltd
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Jio Platforms Ltd
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Publication of WO2025017686A1 publication Critical patent/WO2025017686A1/fr
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Classifications

    • 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
    • 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
    • H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events
    • 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
    • H04W8/12—Mobility data transfer between location registers or mobility servers

Definitions

  • Embodiments of the present disclosure generally relate to wireless communication networks. More particularly, embodiments of the present disclosure relate to provisioning slice information in a communication network.
  • Wireless communication technology has rapidly evolved over the past few decades, with each generation bringing significant improvements and advancements.
  • the first generation of wireless communication technology was based on analog technology and offered only voice services.
  • 2G second-generation
  • 3G Third generation
  • 3G marked the introduction of high-speed internet access, mobile video calling, and location-based services.
  • 4G The fourth generation (4G) technology revolutionized wireless communication with faster data speeds, better network coverage, and improved security.
  • 5G fifth-generation
  • wireless communication technology has become more advanced, sophisticated, and capable of delivering more services to its users.
  • NSSF is one of the key components of a 5G communication system.
  • One such operation relates to assigning of slice to a user equipment (UE) in the 5G wireless communication.
  • UE user equipment
  • the NSSF is an important network function in the 5G wireless communication system.
  • the NSSF is provided to select different slices (for different service types), as per the requirement of different UEs.
  • the 5G communication system can deploy multiple Network Slice Instances delivering exactly the same features for different groups of UEs.
  • the NSSF offers services to the AMF and NSSF in a different PLMN via the NSSF service-based interface.
  • NSSAI Network Slice Selection Assistance Information
  • the NSSF communicates with one or more of the AMF and the NRF, for enabling selection of the slice for the UE.
  • the NSSF communicates with only the AMF to select the slice to the UE.
  • the NSSF employs an NSSF storage unit that is required to store slice data, which may be accessed to enable selection of the slice for the UE.
  • Network slicing enables the creation of separate virtualized sub-networks that can be tailored to meet the specific requirements of different applications.
  • a network is divided into multiple logical partitions or slices, where the multiple logical network partitions are optimised for specific uses, service operations, or for specific requirements pertaining to various users. These partitions have the right construct of isolation, resources, and topology.
  • the process of network slicing creates end-to-end logical networks that have specific characteristics and are operated independently.
  • a cloud-native core for example, may be able to create an instance, or slice, of an entire network virtually. This network slice may be fully customized with network resources for the allocated use case. In fact, these resources may even be dedicated for the purpose if required.
  • TAI Tracking Area Identity
  • PLMN-ID Public Land Mobile Network Identity
  • TAC Tracking Area Code
  • the NSSF storage unit of the NSSF is provisioned with the slice data.
  • “Provisioning” refers to addition/ entry of the slice information into the NSSF storage unit of the NSSF.
  • the NSSF comprises of the NSSF storage unit, and a provisioning application.
  • the slice data, provisioned on the NSSF storage unit of the NSSF includes slice record for each TAC present in range. It may result in a very data intensive set of slice data provisioned on the NSSF storage unit of the NSSF. This may require unnecessary usage of heavy storage on the NSSF storage unit of the NSSF, which may be expensive and may also utilize more resources in the network.
  • An aspect of the present disclosure may relate to a method for provisioning slice information in a communication network.
  • the method includes receiving, at a network slice selection function (NSSF) unit, a slice information request from an access and mobility management function (AMF) unit, wherein the slice information request comprises one or more tracking area identifiers. Further, the method encompasses querying, by the network slice selection function (NSSF) unit, a slice database with the one or more tracking area identifiers. The method further includes identifying, by the network slice selection function (NSSF) unit, a slice information based on a successful matching of the one or more tracking area identifiers with at least one from a list of tracking area identifiers provisioned in the slice database. The method further includes transmitting, by the network slice selection function (NSSF) unit, the slice information to the access and mobility management function (AMF) unit in response to the slice information request and based on the identification of the slice information.
  • NSF network slice selection function
  • AMF access and mobility management function
  • the method further comprises transmitting, by the network slice selection function (NSSF) unit, an error message to the access and mobility management function (AMF) unit in an event the one or more tracking area identifiers fail to match with at least one from the list of tracking area identifiers provisioned in the slice database.
  • NSSF network slice selection function
  • AMF access and mobility management function
  • each TAI in the list of TAIs is associated with a corresponding slice information.
  • the list of TAIs and the corresponding slice information is provisioned based on receiving, at the network slice selection function (NSSF) unit, a slice provisioning request from a provisioning client, wherein the slice provisioning request comprises the list of tracking area identifiers and the corresponding slice information.
  • the method encompasses provisioning, by the network slice selection function (NSSF) unit, the list of tracking area identifiers and the corresponding slice information to the slice database.
  • the method further includes transmitting, by the network slice selection function (NSSF) unit, a slice provisioning acknowledgement to the provisioning client in response to the slice provisioning request.
  • the slice information corresponding to the list of tracking area identifiers is further partitioned based on at least one from among a public land mobile network identifier, a tracking area code and a range of tracking area identifiers in the slice database.
  • the NSSF unit is configured to receive a slice information request from an access and mobility management function (AMF) unit, wherein the slice information request comprises one or more tracking area identifiers.
  • the NSSF unit is further configured to query a slice database with the one or more tracking area identifiers.
  • the NSSF unit is further configured to identify a slice information based on a successful matching of the one or more tracking area identifiers with at least one from a list of tracking area identifiers provisioned in the slice database.
  • the NSSF unit is configured to transmit the slice information to the access and mobility management function (AMF) unit in response to the slice information request, and based on the identification of the slice information.
  • AMF access and mobility management function
  • Yet another aspect of the present disclosure may relate to a user equipment (UE) for availing a service from a communication network.
  • the UE comprises a transceiver unit configured to: transmit to a communication network, a request to avail a service; and receive a response to the request from the communication network.
  • the response is generated by a system configured in the communication network based on: (a) receiving, at a network slice selection function (NSSF) unit, a slice information request from an access and mobility management function (AMF) unit, wherein the slice information request comprises one or more tracking area identifiers; (b) querying, by the network slice selection function (NSSF) unit, a slice database with the one or more tracking area identifiers; (c) identifying, by the network slice selection function (NSSF) unit, a slice information based on a successful matching of the one or more tracking area identifiers with at least one from a list of tracking area identifiers provisioned in the slice database; and (d) transmitting, by the network slice selection function (NSSF) unit, the slice information to the access and mobility management function (AMF) unit in response to the slice information request and based on the identification of the slice information.
  • NSF network slice selection function
  • AMF access and mobility management function
  • Yet another aspect of the present disclosure may relate to a non-transitory computer readable storage medium storing instructions for provisioning slice information in a communication network
  • the instructions include executable code which, when executed by a one or more units of a system, causes: a network slice selection function (NSSF) unit to receive a slice information request from an access and mobility management function (AMF) unit, wherein the slice information request comprises one or more tracking area identifiers.
  • the instructions include executable code, which when executed causes the NSSF unit to query a slice database with the one or more tracking area identifiers.
  • the instructions include executable code, which when executed causes the NSSF unit to identify a slice information based on a successful matching of the one or more tracking area identifiers with at least one from a list of tracking area identifiers provisioned in the slice database. Further, the instructions include executable code, which when executed causes the NSSF unit to transmit the slice information to the access and mobility management function (AMF) unit in response to the slice information request and based on the identification of the slice information.
  • AMF access and mobility management function
  • NSSF network slice selection function
  • FIG. 1 illustrates an exemplary block diagram representation of 5th generation core (5GC) network architecture.
  • 5GC 5th generation core
  • FIG. 2 illustrates an exemplary block diagram of a computing device upon which the features of the present disclosure may be implemented in accordance with exemplary implementation of the present disclosure.
  • FIG. 3 illustrates an exemplary block diagram of a system for provisioning slice information in a communication network, in accordance with exemplary implementations of the present disclosure.
  • FIG. 4 illustrates a method flow diagram for provisioning slice information in a communication network in accordance with exemplary implementations of the present disclosure.
  • exemplary and/or “demonstrative” is used herein to mean serving as an example, instance, or illustration.
  • the subject matter disclosed herein is not limited by such examples.
  • any aspect or design described herein as “exemplary” and/or “demonstrative” is not necessarily to be construed as preferred or advantageous over other aspects or designs, nor is it meant to preclude equivalent exemplary structures and techniques known to those of ordinary skill in the art.
  • the terms “includes,” “has,” “contains,” and other similar words are used in either the detailed description or the claims, such terms are intended to be inclusive in a manner similar to the term “comprising” as an open transition word without precluding any additional or other elements.
  • a “processing unit” or “processor” or “operating processor” includes one or more processors, wherein processor refers to any logic circuitry for processing instructions.
  • a processor may be a general-purpose processor, a special purpose processor, a conventional processor, a digital signal processor, a plurality of microprocessors, one or more microprocessors in association with a (Digital Signal Processing) DSP core, a controller, a microcontroller, Application Specific Integrated Circuits, Field Programmable Gate Array circuits, any other type of integrated circuits, etc.
  • the processor may perform signal coding data processing, input/output processing, and/or any other functionality that enables the working of the system according to the present disclosure.
  • a user equipment As used herein, “a user equipment”, “a user device”, “a smart-user-device”, “a smartdevice”, “an electronic device”, “a mobile device”, “a handheld device”, “a wireless communication device”, “a mobile communication device”, “a communication device” may be any electrical, electronic and/or computing device or equipment, capable of implementing the features of the present disclosure.
  • the user equipment/device may include, but is not limited to, a mobile phone, smart phone, laptop, a general-purpose computer, desktop, personal digital assistant, tablet computer, wearable device or any other computing device which is capable of implementing the features of the present disclosure.
  • the user device may contain at least one input means configured to receive an input from unit(s) which are required to implement the features of the present disclosure.
  • storage unit or “memory unit” refers to a machine or computer-readable medium including any mechanism for storing information in a form readable by a computer or similar machine.
  • a computer-readable medium includes read-only memory (“ROM”), random access memory (“RAM”), magnetic disk storage media, optical storage media, flash memory devices or other types of machine-accessible storage media.
  • the storage unit stores at least the data that may be required by one or more units of the system to perform their respective functions.
  • interface refers to a shared boundary across which two or more separate components of a system exchange information or data.
  • the interface may also be referred to a set of rules or protocols that define communication or interaction of one or more modules or one or more units with each other, which also includes the methods, functions, or procedures that may be called.
  • All modules, units, components used herein, unless explicitly excluded herein, may be software modules or hardware processors, the processors being a general-purpose processor, a special purpose processor, a conventional processor, a digital signal processor (DSP), a plurality of microprocessors, one or more microprocessors in association with a DSP core, a controller, a microcontroller, Application Specific Integrated Circuits (ASIC), Field Programmable Gate Array circuits (FPGA), any other type of integrated circuits, etc.
  • DSP digital signal processor
  • ASIC Application Specific Integrated Circuits
  • FPGA Field Programmable Gate Array circuits
  • the transceiver unit include at least one receiver and at least one transmitter configured respectively for receiving and transmitting data, signals, information or a combination thereof between units/components within the system and/or connected with the system.
  • the current known solutions have several shortcomings.
  • the present disclosure aims to overcome the above-mentioned and other existing problems in this field of technology by providing method and system of provisioning slice information in a communication network.
  • the embodiments of the present disclosure will be explained in reference to the drawings.
  • FIG. 1 illustrates an exemplary block diagram representation of 5th generation core (5GC) network architecture, in accordance with exemplary implementation of the present disclosure.
  • the 5GC network architecture [100] includes a user equipment (UE) [102], a radio access network (RAN) [104], an access and mobility management function (AMF) [106], a Session Management Function (SMF) [108], a Service Communication Proxy (SCP) [110], an Authentication Server Function (AUSF) [112], a Network Slice Specific Authentication and Authorization Function (NSSAAF) [114], a Network Slice Selection Function (NSSF) [116], a Network Exposure Function (NEF) [118], a Network Repository Function (NRF) [120], a Policy Control Function (PCF) [122], a Unified Data Management (UDM) [124], an application function (AF) [126], a User Plane Function (UPF) [128], a data network (DN) [130], wherein all the components are assumed to be connected
  • UE user equipment
  • Radio Access Network (RAN) is the part of a mobile telecommunications system that connects user equipment (UE) [102] to the core network (CN) and provides access to different types of networks (e.g., 5G network). It consists of radio base stations and the radio access technologies that enable wireless communication.
  • Access and Mobility Management Function (AMF) is a 5G core network function responsible for managing access and mobility aspects, such as UE registration, connection, and reachability. It also handles mobility management procedures like handovers and paging.
  • Session Management Function [108] is a 5G core network function responsible for managing session-related aspects, such as establishing, modifying, and releasing sessions. It coordinates with the User Plane Function (UPF) for data forwarding and handles IP address allocation and QoS enforcement.
  • Service Communication Proxy (SCP) [110] is a network function in the 5G core network that facilitates communication between other network functions by providing a secure and efficient messaging service. It acts as a mediator for service-based interfaces.
  • AUSF Authentication Server Function
  • 5G core responsible for authenticating UEs during registration and providing security services. It generates and verifies authentication vectors and tokens.
  • NSSAAF Network Slice Specific Authentication and Authorization Function
  • Network Slice Selection Function (NSSF) [116] is a network function responsible for selecting the appropriate network slice for a UE based on factors such as subscription, requested services, and network policies.
  • Network Exposure Function [118] is a network function that exposes capabilities and services of the 5G network to external applications, enabling integration with third-party services and applications.
  • Network Repository Function (NRF) [120] is a network function that acts as a central repository for information about available network functions and services. It facilitates the discovery and dynamic registration of network functions.
  • PCF Policy Control Function
  • Unified Data Management [124] is a network function that centralizes the management of subscriber data, including authentication, authorization, and subscription information.
  • Application Function [126] is a network function that represents external applications interfacing with the 5G core network to access network capabilities and services.
  • UPF User Plane Function
  • UPF User Plane Function
  • Data Network [130] refers to a network that provides data services to user equipment (UE) in a telecommunications system.
  • the data services may include but are not limited to Internet services, private data network related services.
  • FIG. 2 illustrates an exemplary block diagram of a computing device [200] upon which the features of the present disclosure may be implemented in accordance with exemplary implementation of the present disclosure.
  • the computing device [200] may also implement a method for provisioning slice information in a communication network utilising the system.
  • the computing device [200] itself implements the method for provisioning slice information in a communication network using one or more units configured within the computing device [200], wherein said one or more units are capable of implementing the features as disclosed in the present disclosure.
  • the computing device [200] may include a bus [202] or other communication mechanism for communicating information, and a hardware processor [204] coupled with bus [202] for processing information.
  • the hardware processor [204] may be, for example, a general-purpose microprocessor.
  • the computing device [200] may also include a main memory [206], such as a random-access memory (RAM), or other dynamic storage device, coupled to the bus [202] for storing information and instructions to be executed by the processor [204],
  • the main memory [206] also may be used for storing temporary variables or other intermediate information during execution of the instructions to be executed by the processor [204], Such instructions, when stored in non-transitory storage media accessible to the processor [204], render the computing device [200] into a special-purpose machine that is customized to perform the operations specified in the instructions.
  • the computing device [200] further includes a read only memory (ROM) [208] or other static storage device coupled to the bus [202] for storing static information and instructions for the processor [204],
  • ROM read only memory
  • a storage device [210] such as a magnetic disk, optical disk, or solid-state drive is provided and coupled to the bus [202] for storing information and instructions.
  • the computing device [200] may be coupled via the bus [202] to a display [212], such as a cathode ray tube (CRT), Liquid crystal Display (LCD), Light Emitting Diode (LED) display, Organic LED (OLED) display, etc. for displaying information to a computer user.
  • An input device [214] including alphanumeric and other keys, touch screen input means, etc.
  • a cursor controller [216] such as a mouse, a trackball, or cursor direction keys, for communicating direction information and command selections to the processor [204], and for controlling cursor movement on the display [212].
  • This input device typically has two degrees of freedom in two axes, a first axis (e.g., x) and a second axis (e.g., y), that allow the device to specify positions in a plane.
  • the computing device [200] may implement the techniques described herein using customized hard-wired logic, one or more ASICs or FPGAs, firmware and/or program logic which in combination with the computing device [200] causes or programs the computing device [200] to be a special-purpose machine.
  • the techniques herein are performed by the computing device [200] in response to the processor [204] executing one or more sequences of one or more instructions contained in the main memory [206], Such instructions may be read into the main memory [206] from another storage medium, such as the storage device [210], Execution of the sequences of instructions contained in the main memory [206] causes the processor [204] to perform the process steps described herein.
  • hard-wired circuitry may be used in place of or in combination with software instructions.
  • the computing device [200] also may include a communication interface [218] coupled to the bus [202], The communication interface [218] provides a two-way data communication coupling to a network link [220] that is connected to a local network [222],
  • the communication interface [218] may be an integrated services digital network (ISDN) card, cable modem, satellite modem, or a modem to provide a data communication connection to a corresponding type of telephone line.
  • the communication interface [218] may be a local area network (LAN) card to provide a data communication connection to a compatible LAN.
  • LAN local area network
  • Wireless links may also be implemented.
  • the communication interface [218] sends and receives electrical, electromagnetic or optical signals that carry digital data streams representing various types of information.
  • the computing device [200] can send messages and receive data, including program code, through the network(s), the network link [220] and the communication interface [218],
  • a server [230] might transmit a requested code for an application program through the Internet [228], the ISP [226], the local network [222], the host [224], and the communication interface [218],
  • the received code may be executed by the processor [204] as it is received, and/or stored in the storage device [210], or other non-volatile storage for later execution.
  • the system [300] comprises at least one network slice selection function (NSSF) unit [302], at least one network slice selection function (NSSF) storage unit [304] (or as used herein, the slice database [304]), at least one Access and Mobility Management Function unit [306], and at least one provisioning client unit [308], Also, all of the components/ units of the system [300] are assumed to be connected to each other unless otherwise indicated below. As shown in the FIG. 3 all units shown within the system should also be assumed to be connected to each other. Also, in FIG.
  • system [300] may comprise multiple such units or the system [300] may comprise any such numbers of said units, as required to implement the features of the present disclosure. Further, in an implementation, the system [300] may be present in a network entity.
  • the system [300] is configured for provisioning slice information in a communication network, with the help of the interconnection between the components/units of the system [300],
  • the NSSF unit [302] comprises the NSSF storage unit [304] (interchangeably referred to herein as the slice database [304]) that is provisioned with the slice data.
  • the NSSF storage unit [304] is suitably programmed to receive and store therein a list or range of Tracking Area Identifiers (TAI)s, and slice information corresponding to the list or range of TAIs. Therefore, the slice data encompasses the list of TAIs along with the corresponding slice information.
  • the slice information comprises Network Slice Selection Assistance Information (NSSAI).
  • NSSAI Network Slice Selection Assistance Information
  • the single-NSSAI is made up of two fields, namely, Slice/Service Type (SST) and Service Differentiator (SD).
  • the SST field may have standardized and non-standardized values. Values 0 to 127 belong to the standardized SST, and SD is an optional field. SST has 8-bit field length implying that it can indicate a total of 255 different slice types. SD indicates a kind of slice ID within the SST. SST is a mandatory item in the slice information, whereas SD is an optional item. SD is used to indicate a specific slice when a plurality of slices is supported in the same SST.
  • the Network Slice Selection Function (NSSF) unit [302] implements NSSF which is a network function responsible for selecting the appropriate network slice for a User Equipment based on factors such as subscription, requested services, and network policies.
  • NSSF Network Slice Selection Function
  • the NSSF unit [302] is configured to receive a slice information request from an access and mobility management function (AMF) unit [306], wherein the slice information request comprises one or more tracking area identifiers.
  • AMF access and mobility management function
  • a tracking area identifier is an identifier used to identify tracking areas.
  • the one or more tracking area identifiers (TAIs) associated with the slice information request includes MCC (Mobile Country Code), MNC (Mobile Network Code) and TAC (Tracking Area Code).
  • the NSSF unit [302] is further configured to query a slice database [304] with the one or more tracking area identifiers (TAI), which forms a part of standard query format.
  • TAI tracking area identifiers
  • the NSSF unit [302] is further configured to identify the slice information based on a successful matching of the one or more tracking area identifiers with at least one from a list of tracking area identifiers provisioned in the slice database [304],
  • the list of tracking area identifiers is an exhaustive list of tracking area identifiers provisioned in the slice database [304],
  • the NSSF unit [302] is configured to transmit the slice information to the access and mobility management function (AMF) unit [306] in response to the slice information request and based on the identification of the slice information.
  • AMF access and mobility management function
  • the NSSF unit [302] is further configured to transmit an error message to the access and mobility management function (AMF) unit [306] in an event the one or more tracking area identifiers fail to match with at least one from the list of tracking area identifiers provisioned in the slice database [304],
  • the error message indicates an unavailability of an information requested in the slice information request.
  • each TAI in the list of TAIs is associated with a corresponding slice information.
  • the list of TAIs and the corresponding slice information is provisioned in the slice database [304] based on: (a) receiving, at the network slice selection function (NSSF) unit [302], a slice provisioning request from a provisioning client [308], wherein the slice provisioning request comprises the list of tracking area identifiers and the corresponding slice information; (b) provisioning, by the network slice selection function (NSSF) unit [302], the list of tracking area identifiers and the corresponding slice information to the slice database; and (c) transmitting, by the network slice selection function (NSSF) unit [302], a slice provisioning approval acknowledgement to the provisioning client [308] in response to the slice provisioning request.
  • NSSF network slice selection function
  • the slice information corresponding to the list of tracking area identifiers is further partitioned based on at least one from among a public land mobile network identifier, a tracking area code (TAC) and a range of tracking area identifiers in the slice database.
  • TAC tracking area code
  • the partitioning is done to ease the identification process of corresponding slice information.
  • the slice information may be partitioned into different PLMNs to store the corresponding slice data with TAC information to optimize the query from the database.
  • FIG. 4 an exemplary method flow diagram [400] for provisioning slice information in a communication network, in accordance with exemplary implementations of the present disclosure is shown.
  • the method [400] is performed by the system [300], Further, in an implementation, the system [300] may be present in the communication network to implement the features of the present disclosure. Also, as shown in FIG. 4, the method [400] starts at step [402],
  • the NSSF unit [302] receives a slice information request from an access and mobility management function (AMF) unit [306], wherein the slice information request comprises one or more tracking area identifiers.
  • the Tracking Area identifier is the identifier used to identify tracking areas.
  • the Tracking Area Identifier (TAI) comprises of MCC (Mobile Country Code), MNC (Mobile Network Code) and TAC (Tracking Area Code).
  • the method includes querying, by the network slice selection function (NSSF) unit [302], a slice database [304] with the one or more tracking area identifiers.
  • NSSF network slice selection function
  • the method encompasses identifying, by the network slice selection function (NSSF) unit [302], the slice information based on a successful matching of the one or more tracking area identifiers with at least one from a list of tracking area identifiers provisioned in the slice database [304], The list of tracking area identifiers is an exhaustive list of tracking area identifiers provisioned in the slice database [304], [0076] Further at step [410], the method includes transmitting, by the network slice selection function (NSSF) unit [302], the slice information to the access and mobility management function (AMF) unit [306] in response to the slice information request and based on the identification of the slice information.
  • NSF network slice selection function
  • the method comprises transmitting, by the NSSF unit [302], an error message to the access and mobility management function (AMF) unit [306] in an event the one or more tracking area identifiers fail to match with at least one from the list of tracking area identifiers provisioned in the slice database [304],
  • the error message indicates an unavailability of an information requested in the slice information request.
  • each TAI in the list of TAIs is associated with a corresponding slice information.
  • the list of TAIs and the corresponding slice information is provisioned in the slice database [304] based on: (a) receiving, at the network slice selection function (NSSF) unit [302], a slice provisioning request from a provisioning client [308], wherein the slice provisioning request comprises the list of tracking area identifiers and the corresponding slice information; (b) provisioning, by the network slice selection function (NSSF) unit [302], the list of tracking area identifiers and the corresponding slice information to the slice database [304]; and (c) transmitting, by the network slice selection function (NSSF) unit [302], a slice provisioning approval acknowledgement to the provisioning client [308] in response to the slice provisioning request.
  • NSSF network slice selection function
  • the slice information corresponding to the list of tracking area identifiers is further partitioned based on at least one from among a public land mobile network identifier, a tracking area code and a range of tracking area identifiers in the slice database [304], The partitioning is done to ease the identification process of corresponding slice information.
  • the slice information may be partitioned into different PLMNs to store the corresponding slice data with TAC information to optimize the query from the database.
  • the present disclosure further encompasses a user equipment (UE) for availing a service from a communication network.
  • the UE comprises a transceiver unit configured to: transmit to a communication network, a request to avail a service; and receive a response to the request from the communication network, wherein the response is generated by a system [300] configured in the communication network based on: (a) receiving, at a network slice selection function (NSSF) unit [302], a slice information request from an access and mobility management function (AMF) unit [306], wherein the slice information request comprises one or more tracking area identifiers; (b) querying, by the network slice selection function (NSSF) unit [302], a slice database [102A] with the one or more tracking area identifiers; (c) identifying, by the network slice selection function (NSSF) unit [302], a slice information based on a successful matching of the one or more tracking area identifiers with at least one from a list of tracking area identifiers provisione
  • the present disclosure further encompasses a non-transitory computer readable storage medium storing instructions for provisioning slice information in a communication network
  • the instructions include executable code which, when executed by a one or more units of a system, causes: a network slice selection function (NSSF) unit [302] to receive a slice information request from an access and mobility management function (AMF) unit [306], wherein the slice information request comprises one or more tracking area identifiers.
  • the instructions include executable code, which when executed causes the NSSF unit [302] to query a slice database [304] with the one or more tracking area identifiers.
  • the instructions include executable code, which when executed causes the NSSF unit [302] to identify a slice information based on a successful matching of the one or more tracking area identifiers with at least one from a list of tracking area identifiers provisioned in the slice database [304], Further, the instructions include executable code, which when executed causes the NSSF unit [302] to transmit the slice information to the access and mobility management function (AMF) unit [306] in response to the slice information request, and based on the identification of the slice information.
  • AMF access and mobility management function
  • the present disclosure provides a technically advanced solution for provisioning slice information in a communication network.
  • the present solution addresses the challenge of slice provisioning of large TAI (Tracking Area Identity) ranges efficiently.
  • TAI Tracking Area Identity
  • the present disclosure streamlines the overall provisioning workflow and enhances the overall operational efficiency.
  • the aim of the present disclosure is to reduce the time and complexity associated with provisioning extensive TAI ranges.
  • the present disclosure is advantageous as instead of maintaining slice record for each TAC present in range, a single entry in slice data store is created based on the implementation of features as disclosed in the present disclosure.
  • the present disclosure is advantageous as it reduces the complexity of maintaining multiple individual entries and uses data store optimally.
  • the present disclosure further aims to reduce the query processing time.

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

Abstract

La présente divulgation se rapporte à un procédé et un système de fourniture d'informations de tranche dans un réseau de communication, le procédé consistant : (1) à recevoir, au niveau d'une unité de fonction de sélection de tranche de réseau (NSSF) [302], une demande d'informations de tranche en provenance d'une unité de fonction de gestion d'accès et de mobilité (AMF) [306], la demande d'informations de tranche comprenant des identifiants de zone de suivi (TAI); (2) à interroger, par l'unité NSSF [302], une base de données de tranches [304] à l'aide des TAI; (3) à identifier, par l'unité NSSF [302], des informations de tranche en fonction d'une correspondance réussie des TAI avec au moins un TAI d'une liste de TAI fournis dans la base de données de tranches [304]; (4) à transmettre, par l'unité NSSF [302], les informations de tranche à l'unité AMF [306] en réponse à la demande d'informations de tranche et en fonction de l'identification des informations de tranche.
PCT/IN2024/051253 2023-07-17 2024-07-15 Procédé et système de fourniture d'informations de tranche dans un réseau de communication Pending WO2025017686A1 (fr)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN201817030878A (fr) * 2018-08-17 2018-11-16
US20180368061A1 (en) * 2017-05-09 2018-12-20 Huawei Technologies Co., Ltd. Slice-Based Communications Method And Device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180368061A1 (en) * 2017-05-09 2018-12-20 Huawei Technologies Co., Ltd. Slice-Based Communications Method And Device
IN201817030878A (fr) * 2018-08-17 2018-11-16

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