WO2023072054A1 - 切片服务获取方法及相关装置 - Google Patents

切片服务获取方法及相关装置 Download PDF

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Publication number
WO2023072054A1
WO2023072054A1 PCT/CN2022/127319 CN2022127319W WO2023072054A1 WO 2023072054 A1 WO2023072054 A1 WO 2023072054A1 CN 2022127319 W CN2022127319 W CN 2022127319W WO 2023072054 A1 WO2023072054 A1 WO 2023072054A1
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Prior art keywords
message
information
slice
vplmn
target
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PCT/CN2022/127319
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English (en)
French (fr)
Inventor
张燕
张咏霞
武海峰
吕学礼
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展讯通信(上海)有限公司
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Publication of WO2023072054A1 publication Critical patent/WO2023072054A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing 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
    • H04W8/08Mobility data transfer
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08Configuration management of networks or network elements
    • H04L41/0893Assignment of logical groups to network elements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition

Definitions

  • the present application relates to the communication field, and in particular to a slice service acquisition method and a related device.
  • Network slicing divides the operator's physical network into multiple virtual networks, and each virtual network flexibly responds to different network application scenarios according to different service requirements, such as the fifth-generation communication technology (5 th -generation, 5G) It involves enhanced mobile broadband (eMBB) scenarios, ultra-reliable low latency communication (uRLLC) scenarios, and massive machine type communication (mMTC) scenarios.
  • 5G fifth-generation communication technology
  • eMBB enhanced mobile broadband
  • uRLLC ultra-reliable low latency communication
  • mMTC massive machine type communication
  • a user equipment can subscribe to multiple network slices from a home public land mobile network (home public land mobile network, HPLMN), so as to obtain slice services provided by the network slices.
  • a home public land mobile network home public land mobile network, HPLMN
  • the UE registers with the most preferred visited public land mobile network (VPLMN), so as to obtain information from the most preferred VPLMN.
  • VPLMN visited public land mobile network
  • the present application provides a slice service acquisition method and a related device, which can quickly acquire a specific slice service in a roaming scenario.
  • the present application provides a slice service acquisition method, the method may include: sending a first message, the first message includes description information, the description information is used to describe the requested network slice, and the first message is used to request and the Slice information matching the description information; receive a second message, the second message includes slice information; determine a target VPLMN according to the slice information, and the target VPLMN is one or more of the various PLMNs corresponding to the visited location; obtain from the target VPLMN The slicing service provided by the above network slicing.
  • the terminal device acquires a specific slice service from the target VPLMN by carrying description information in the first message.
  • the slice service provided by the requested network slice can be understood as a specific slice service.
  • the above description information includes network slice selection assistance information (network slice selection assistance information, NSSAI) and/or NSSAI rules, where the NSSAI rules are used to indicate location information and/or time information. Describe the requested network slice through NSSAI and/or NSSAI rules, so as to obtain matching slice information.
  • NSSAI network slice selection assistance information
  • NSSAI rules are used to indicate location information and/or time information. Describe the requested network slice through NSSAI and/or NSSAI rules, so as to obtain matching slice information.
  • the first message further includes indication information, where the indication information is used to indicate that the first message includes the description information.
  • the first message is sent when it is known that the terminal device will move to the visited location; or, the first message is sent when there is no slice information matching the description information.
  • the target VPLMN is different from or the same as the most preferred PLMN among the multiple PLMNs corresponding to the visited location.
  • the above-mentioned first message is a policy configuration request message
  • the above-mentioned second message is a management policy instruction or a policy configuration rejection message.
  • the foregoing first message is a registration request message
  • the foregoing second message is a management policy instruction
  • the present application provides a communication device, the communication device includes a communication unit and a processing unit, wherein: the communication unit is used to send a first message, the first message includes description information, and the description information is used to describe the request The first message is used to request slice information matching the description information; the second message is received, and the second message includes slice information; the processing unit is used to determine the target VPLMN according to the slice information, and the target VPLMN is a visited One or more of the various PLMNs corresponding to the ground; the communication unit is also used to obtain the slicing service provided by the above-mentioned network slicing from the target VPLMN.
  • the present application provides a communication device, the communication device includes a processor, a memory, and a transceiver, the transceiver is used to receive signals or send signals; the memory is used to store program codes; The processor is configured to call the program code from the memory to execute the method in the first aspect and any possible implementation manner thereof.
  • the present application provides a chip, the chip is used to send a first message, the first message includes description information, the description information is used to describe the requested network slice, and the first message is used to request and describe information Matching slice information; receiving the second message, the second message includes slice information; determining the target VPLMN according to the slice information, the target VPLMN is one or more of the various PLMNs corresponding to the visited place; obtaining the above-mentioned network from the target VPLMN The slicing service provided by slicing.
  • the present application provides a module device, which includes a communication module, a power module, a storage module, and a chip module, wherein: the power module is used to provide power for the module device ; the storage module is used for storing data and instructions; the communication module is used for internal communication of the module device, or for the module device to communicate with external devices; the chip module is used for: sending the first message, The first message includes description information, the description information is used to describe the requested network slice, the first message is used to request slice information matching the description information; receive the second message, the second message includes slice information; according to the slice information
  • the target VPLMN is determined, and the target VPLMN is one or more of the various PLMNs corresponding to the visited location; and the slice service provided by the above network slice is obtained from the target VPLMN.
  • the present application provides a computer-readable storage medium, in which computer-readable instructions are stored, and when the computer-readable instructions are run on a communication device, the communication device is made to execute the above-mentioned first aspect and methods in any of its possible implementations.
  • the present application provides a computer program or a computer program product, including codes or instructions, which, when the codes or instructions are run on a computer, cause the computer to execute the computer program described in the first aspect and any possible implementation thereof. method.
  • FIG. 1 is a schematic diagram of a 5G system architecture
  • FIG. 2 is a schematic diagram of a network architecture applying an embodiment of the present application
  • FIG. 3 is a schematic flowchart of a method for obtaining a slice service provided in an embodiment of the present application
  • FIG. 4 is a schematic flowchart of another method for obtaining slice services provided by the embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • Fig. 7 is a schematic structural diagram of a module device provided by an embodiment of the present application.
  • the embodiment of the present application can be applied to a 5G system, which can also be called a new air interface (new radio, NR) system; or can also be applied to a sixth generation (6th generation, 6G) system, or a seventh generation (7th generation, 7G) system system, or other communication systems in the future; or it can also be used in device to device (device to device, D2D) system, machine to machine (machine to machine, M2M) system, etc.
  • the embodiments of the present application can be applied to the field of vehicle to everything (V2X), and can also be applied to other fields.
  • Figure 1 is a schematic diagram of a 5G system architecture.
  • Figure 1 can be a 5G non-roaming system architecture based on reference points, which can include terminal equipment, access network and core network.
  • the terminal device is a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons and satellites, etc.).
  • Terminal equipment can be mobile phone, tablet computer (Pad), computer with wireless transceiver function, virtual reality (virtual reality, VR) terminal equipment, augmented reality (augmented reality, AR) terminal equipment, industrial control (industrial control) ), wireless terminals in vehicle-mounted terminal equipment, wireless terminals in self driving, etc.
  • Terminal equipment may also sometimes be referred to as a terminal, UE, access terminal equipment, vehicle terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal equipment, mobile device, UE agent, or UE device wait. Terminal equipment can also be fixed or mobile. Applied in this embodiment of the application, the terminal device is mobile.
  • the access network is used to implement access-related functions, which can provide network access functions for authorized users in a specific area, and can determine transmission tunnels of different qualities to transmit user data according to user levels and service requirements.
  • the access network forwards control signals and user data between the terminal equipment and the core network.
  • the access network may include access network devices, and the access network devices may be devices that provide access for terminal devices.
  • the name of the access network equipment may be different, for example, in a 5G system, it is called a next-generation base station (next-generation Node basestation, gNB) or ng-eNB, etc.
  • gNB next-generation Node basestation
  • ng-eNB ng-eNB
  • the core network is responsible for maintaining the subscription data of the mobile network, and providing functions such as session management, mobility management, policy management, and security authentication for the UE.
  • the core network may include the following network elements: user plane function (user plane function, UPF), authentication server function (authentication server function, AUSF), access and mobility management function (access and mobility management function, AMF), session management function (session management function, SMF), network slice selection function (network slice selection function, NSSF), network exposure function (network exposure function, NEF), network function storage function (NF repository function, NRF), policy control function (policy control function, PCF), unified data management (unified data management, UDM) and application function (application function, AF).
  • AMF is mainly responsible for mobility management in the mobile network, such as user location update, user registration network, user handover, etc.
  • SMF is mainly responsible for session management in mobile networks, such as session establishment, modification, and release. Specific functions such as assigning Internet protocol (internet protocol, IP) addresses to users, selecting UPFs that provide message forwarding functions, and the like.
  • UPF is responsible for the forwarding and receiving of user data in the terminal equipment. It can receive user data from the data network and transmit it to the terminal equipment through the access network equipment; it can also receive user data from the terminal equipment through the access network equipment and forward it to the data network.
  • PCF mainly supports the provision of a unified policy framework to control network behavior, provides policy rules to the network functions of the control layer, and is responsible for obtaining user subscription information related to policy decisions.
  • the PCF can provide policies to the AMF and SMF, such as quality of service (quality of service, QoS) policies, slice selection policies, and the like.
  • AUSF is used to perform security authentication of UE.
  • NSSF is used to select a network slice for the UE.
  • NEF is mainly used to support the opening of capabilities and events.
  • NRF is used to provide storage function and selection function of network function entity information for other network elements.
  • UDM is used to store user data, such as subscription data, authentication/authorization data, etc.
  • AF mainly supports interaction with the 3GPP core network to provide services, such as influencing data routing decisions, policy control functions, or providing some third-party services to the network side.
  • the data network (data network, DN) is used to provide business services for users, and it can be a private network, such as a local area network; it can also be an external network that is not controlled by the operator, such as the Internet (Internet); Deployed proprietary network, such as a network providing an IP multimedia subsystem (IP multimedia subsystem, IMS).
  • IP multimedia subsystem IP multimedia subsystem
  • Network slicing a logical network characterized by end-to-end, on-demand customization and isolation, can provide differentiated network services for different businesses or user groups through flexible design of functions, performance, connection relationships, operation and maintenance, etc. .
  • End-to-end means that network slicing requires not only the core network, but also the access network, transmission network, and management network; on-demand customization means that the business, function, capacity, quality of service, and connection relationship of network slicing can be customized on demand.
  • slice lifecycle management can be performed on demand; isolation includes security isolation, resource isolation, and operation and maintenance isolation.
  • NSSAI is a collection of single network slice selection assistance information (S-NSSAI) used to identify a group of network slices. S-NSSAI is used to uniquely identify a network slice.
  • S-NSSAI single network slice selection assistance information
  • the types of NSSAI can be divided into:
  • the configured NSSAI (configured NSSAI), the NSSAI pre-configured in the UE, the NSSAI can also be generated by the NSSF or AMF and sent to the UE, mainly used to generate the requested NSSAI (requested NSSAI) used during initial registration.
  • Rejected NSSAI rejecting slices accessed by the UE. For slices not supported by the PLMN, the UE cannot access them under the PLMN; for slices not supported by the current registration area, the UE cannot access them again before moving out of the registration area.
  • the requested NSSAI (requested NSSAI), which is generated by the UE according to the configured NSSAI and allowed NSSAI, can be carried in the radio resource control (radio resource control, RRC) and non-access-stratum (non-access- stratum, NAS) message, indicates the NSSAI that the UE requests to use in this registration.
  • RRC radio resource control
  • NAS non-access-stratum
  • FIG. 2 is a schematic diagram of a network architecture applying the embodiment of the present application.
  • the network architecture is a network architecture in a roaming scenario, including UE, HPLMN and VPLMN.
  • the HPLMN includes the access network and the core network shown in FIG. 1
  • the VPLMN also includes the access network and the core network shown in FIG. 1 .
  • HPLMN is the PLMN to which the UE belongs, the mobile country code (MCC) and The mobile network code (mobile network code, MNC) is consistent with the MCC and MNC on the HPLMN.
  • MCC mobile country code
  • MNC mobile network code
  • the VPLMN is the PLMN accessed by the UE, and the MCC and MNC in the IMSI on the USIM card are not exactly the same as the MCC and MNC on the VPLMN.
  • MCC mobile country code
  • MNC mobile network code
  • the embodiment of the present application can be applied to the scenario where the UE moves from HPLMN to VPLMN, for example, the UE moves from country A to country B, and can also be applied to the scenario where the UE will move from HPLMN to VPLMN, for example, the UE will move from country A to VPLMN two hours later.
  • City C in country A flies to city D in country B.
  • the UE sends a first message including description information to a VPLMN, where the description information is used to describe the requested network slice, and the first message is used to request slice information matching the description information;
  • the VPLMN cannot provide the slice service of the network slice, obtain slice information matching the description information from the HPLMN, and send a second message including the slice information to the UE;
  • the UE determines the target VPLMN according to the slice information, and obtains the target VPLMN from the target VPLMN
  • the slice service provided by the network slice is obtained, so that the UE can quickly obtain a specific slice service.
  • the slice service provided by the requested network slice can be understood as a specific slice service.
  • the UE sends a first message including description information to the HPLMN, where the description information is used to describe the requested network slice, and the first message is used to request slice information matching the description information;
  • the HPLMN provides slice information matching the description information to the UE, and sends the slice information through the second message;
  • the UE determines the target VPLMN according to the slice information, and obtains the slice service provided by the network slice from the target VPLMN, so that the UE can quickly Get a specific slice service.
  • FIG. 3 is a schematic flowchart of a method for obtaining a slice service provided by an embodiment of the present application.
  • the method may include but not limited to the following steps:
  • the description information is used to describe the requested network slice, and the requested network slice can also be understood as a required network slice.
  • the slicing service provided by the requested network slicing can be understood as a specific slicing service, or a purposeful slicing service, or a targeted slicing service.
  • the description information includes NSSAI and/or NSSAI rule (rule).
  • the NSSAI is the requested NSSAI, which can be defined in the protocol 3GPP TS 24 501clause 9.11.3.37.
  • the NSSAI rules are used to indicate location information and/or time information, and describe required network slices through the location information and/or time information. It should be noted that the description information, requested NSSAI, and NSSAI rules are used as examples, and do not constitute limitations to the embodiments of the present application.
  • the description information includes NSSAI
  • the first message includes requested NSSAI, which is used to indicate the requested network slice
  • the description information includes an NSSAI rule, which is used to indicate that the requested network slice satisfies the rule.
  • the requested NSSAI can be carried in the first message; when the UE needs to obtain a network slice that meets the location information and/or time information, it can be in the first message
  • the NSSAI rule is carried in the first message; when the UE needs to obtain a specific network slice that satisfies the location information and/or time information, the requested NSSAI and the NSSAI rule can be carried in the first message.
  • the NSSAI rule information element (information element, IE) can be referred to in Table 1 below.
  • validity area ind 3GPP loc ind, WLAN loc ind, Geo loc ind, time of day ind, Validity area and Time of day can refer to the description in 3GPP TS 24.526.
  • validity area ind, 3GPP loc ind, WLAN loc ind, Geo loc ind and Validity area can represent location information
  • time of day ind and Time of day can represent time information.
  • Validity area can be expressed in multiple location types, which can be different location accuracy. For example, when expressed by 3GPP, it can be expressed as an invalid value other than MCC to represent the country. It can also be further expanded to set the scope of the Validity area, such as geofencing, etc., which will not be expanded here.
  • the first message may be a policy configuration request message, such as a UE POLICY PROVISIONING REQUEST message, or a registration request message, such as a REGISTRATION REQUEST message.
  • a policy configuration request message such as a UE POLICY PROVISIONING REQUEST message
  • a registration request message such as a REGISTRATION REQUEST message.
  • the UE after the UE learns that it will move to a visited place, for example, the UE will fly from city C in country A to city D in country B in 5 hours, and there is no information about the visited place in the UE and the USIM card.
  • network slicing information if the UE is registered with HPLMN in country A, then send the first message to HPLMN to pre-obtain the slice information of city D from HPLMN.
  • the slice information may include the VPLMN of city D contracted with HPLMN slice information; if UE is registered in country A as VPLMN-A, then send the first message to VPLMN-A, and VPLMN-A obtains slice information from HPLMN and sends it to UE, so that UE can obtain slice information of city D in advance .
  • the UE roams from the home location to the visited location, and the most preferred VPLMN in the visited location cannot support all required network slices, but there is a VPLMN in the visited location that supports slices that are not available in the most preferred VPLMN.
  • the UE enters the visiting place for the first time and the UE and the USIM card do not have any pre-configured network slice information, register with the most preferred VPLMN and send the first message, so that the most preferred VPLMN obtains the slice information from the HPLMN.
  • the first message is sent to a VPLMN in the visited location.
  • the UE has stored the network slice information of the visited site, but because the storage capacity is valid, the relevant data has been cleared.
  • the UE sends a first message to a VPLMN of the visited site.
  • the first message further includes indication information, where the indication information is used to indicate that the first message includes description information.
  • the indication information is 1 bit, and when the value is "0", it indicates that the first message does not include the description information, and when the value is "1", it indicates that the first message includes the description information.
  • the slice information may include the slice information of the visited VPLMN contracted with the HPLMN, and may be used to determine the corresponding relationship between the network slice and the PLMN.
  • the home operator has agreements with various other operators to support the same network slices for roaming UEs. It can be understood that the VPLMN can obtain the correspondence between the network slice and the PLMN from the HPLMN based on the protocol.
  • the UE receives a second message from the HPLMN, or receives a second message from the most preferred VPLMN of the visited location, where the second message includes slice information, where the slice information is NSSAI configuration information that matches the description information, and is used for Indicates the correspondence between the requested network slice and the PLMN.
  • slice information is NSSAI configuration information that matches the description information, and is used for Indicates the correspondence between the requested network slice and the PLMN.
  • the second message may be a management policy instruction or a policy configuration rejection message.
  • the first message is a registration request message
  • the second message may be a management policy instruction.
  • Management policy commands such as MANAGE UE POLICY COMMAND
  • policy configuration rejection messages such as UE POLICY PROVISIONING REJECT messages.
  • the UE determines the VPLMN corresponding to the requested network slice, that is, the target VPLMN, according to the correspondence included in the slice information.
  • the target VPLMN may be different from the optimal PLMN among the various PLMNs corresponding to the visited location.
  • the target VPLMN is different from the most preferred PLMN when the most preferred PLMN cannot provide the slicing service of the required network slice.
  • the optimal PLMN among the various PLMNs corresponding to the target VPLMN and the visited location may be the same. For example, if the slice information is known in advance, the PLMN corresponding to the required network slice includes the most preferred PLMN, or the target PLMN is the most preferred PLMN.
  • the PLMN corresponding to the visited location includes VPLMN-A, VPLMN-B, and VPLMN-C, where VPLMN-B and VPLMN-C can provide slice services for required network slices, without considering the required network slices , according to the network selection rule VPLMN-A is the most preferred PLMN, that is, the UE registers with VPLMN-A. If the UE knows the corresponding relationship between VPLMN-B and VPLMN-C and the required network slice in advance, then the UE registers with the VPLMN-B or VPLMN-C to obtain the slice service of the required network slice. If the UE does not know the corresponding relationship between VPLMN-B and VPLMN-C and required network slices in advance, then the UE registers with VPLMN-A and sends the first message to VPLMN-A.
  • VPLMN-A is the most preferred PLMN, that is, the UE registers with VPLMN-A.
  • the UE When the target VPLMN is determined, the UE registers with the target VPLMN to obtain the slice service provided by the required network slice.
  • the PLMNs corresponding to city D include VPLMN-A, VPLMN-B and VPLMN-C, and the UE will register to the most PLMN is preferred, ie VPLMN-A.
  • the UE sends a first message to VPLMN-A, and VPLMN-A learns from the HPLMN that the network slice is available on the VPLMN-C protocol, and forwards the corresponding relationship to the UE.
  • the UE When the UE knows that the network slice protocol is available on VPLMN-C, it can automatically select a network, disconnect from VPLMN-A, and register with VPLMN-C; or manually select a network to disconnect Connect with VPLMN-A and register with VPLMN-C. After obtaining the slice service provided by network slice 1 from VPLMN-C, disconnect from VPLMN-C and reconnect with VPLMN-A.
  • the UE acquires a specific slice service from the target VPLMN by carrying description information in the first message.
  • FIG. 4 is a schematic flowchart of another method for obtaining slice services provided by the embodiment of the present application.
  • the method may include but not limited to the following steps:
  • the UE sends a UE policy configuration request message to VPLMN-A.
  • VPLMN-A receives the UE policy configuration request message from the UE.
  • the UE policy configuration request message may be a UE POLICY PROVISIONING REQUEST message. Specifically, the UE sends a UE policy configuration request message to the AMF in the VPLMN-A.
  • the UE policy configuration request message includes description information, and the description information includes NSSAI and/or NSSAI rules. See Table 2 below for the content included in the UE POLICY PROVISIONING REQUEST message.
  • the VPLMN-A acquires slice information from the HPLMN.
  • the VPLMN-A obtains slice information from the HPLMN may include: when the AMF receives the UE policy configuration request message, it sends an Npcf_UE PolicyControl_Updata request to the V-PCF in the VPLMN-A (ie, the PCF in the visited network); the V-PCF Send Npcf_UE PolicyControl_Updata request to H-PCF (PCF in the home network), H-PCF sends Npcf_UE PolicyControl_Updata response to V-PCF; V-PCF sends Npcf_UE PolicyControl_Updata response to AMF.
  • H-PCF sends Npcf_UE PolicyControl_Updata Notify request to V-PCF
  • V-PCF sends Npcf_UE PolicyControl_Updata Notify response to H-PCF.
  • the Npcf_UE PolicyControl_Updata response may include slice information.
  • the VPLMN-A sends a UE management policy instruction to the UE.
  • the UE receives the UE management policy instruction from the VPLMN-A.
  • the UE management policy instruction includes slice information.
  • the UE determines the VPLMN-C according to the slice information.
  • the UE obtains the slice service provided by the network slice from the VPLMN-C.
  • VPLMN-C is the VPLMN corresponding to the required network slice.
  • steps 403 to 405 reference may be made to the specific description of steps 302 to 304, which will not be repeated here.
  • the UE acquires a specific slice service from the target VPLMN by carrying description information in the first message.
  • the UE if the UE is registered with the HPLMN, then the UE sends the first message to the HPLMN, and when the HPLMN receives the first message, it directly obtains the slice information from the H-PCF, and sends the message to the UE
  • the second message includes the slice information, so that the UE can determine the target VPLMN according to the slice information.
  • the UE sends a UE policy configuration request message including description information to obtain slice information matching the description information.
  • the UE sends a registration request message including description information.
  • the network HPLMN or VPLMN
  • the content included in the registration request message can be referred to in Table 3 below.
  • the first message sent by the UE can be used to search for available network slices within a small range, for example, to search for available network slices within a certain hotel range; if the UE is in a certain range If the UE is active in a certain area within a time period, the first message sent by the UE can be used to find valid network slices in the area; if the UE needs one or several network slices, the first message sent by the UE can be used It is used to find the corresponding network slice; if the storage space of the UE is large enough, then the first message sent by the UE can be used to find network slices within a sufficient range of locations.
  • FIG. 5 shows a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device shown in FIG. 5 may be used to perform part or all of the functions of the UE in FIG. 3 or FIG. 4 above.
  • the device may be a UE, or a device in the UE, or a device that can be matched and used with the UE.
  • the communication device may also be a system on a chip.
  • the communication device shown in FIG. 4 may include a communication unit 501 and a processing unit 502 .
  • the processing unit 502 is configured to perform data processing.
  • a communication unit 501 configured to communicate with other devices.
  • the communication unit 501 is integrated with a receiving unit and a sending unit.
  • the communication unit 501 may also be called a transceiver unit.
  • the communication unit 501 may also be split into a receiving unit and a sending unit.
  • the communication unit 501 is configured to send a first message, the first message includes description information, the description information is used to describe the requested network slice, and the first message is used to request slice information matching the description information; receiving the second message, the second message includes slice information; the processing unit 502 is used to determine the target VPLMN according to the slice information, and the target VPLMN is one or more of the various PLMNs corresponding to the visited place; the communication unit 501 is also used for The VPLMN obtains the slicing service provided by the above network slicing.
  • the foregoing description information includes NSSAI and/or NSSAI rules, where the NSSAI rules are used to indicate location information and/or time information.
  • the foregoing first message further includes indication information, where the indication information is used to indicate that the first message includes description information.
  • the communication unit 501 is specifically configured to send the first message when it is known that the terminal device will move to the visited place; or, when there is no slice matching the description information In case of information, send the first message.
  • the target VPLMN is different from or the same as the most preferred PLMN among the multiple PLMNs corresponding to the visited location.
  • the above-mentioned first message is a policy configuration request message
  • the second message is a management policy instruction or a management configuration rejection message.
  • the foregoing first message is a registration request message
  • the second message is a management policy instruction
  • the embodiment of the present application further provides a chip, which can execute the UE-related steps in the foregoing method embodiments.
  • the chip is used to: send a first message, the first message includes description information, the description information is used to describe the requested network slice, and the first message is used to request slice information matching the description information; receive the second message , the second message includes slice information; determine the target VPLMN according to the slice information, and the target VPLMN is one or more of the various PLMNs corresponding to the visited location; obtain the slice service provided by the above network slice from the target VPLMN.
  • a communication device 60 provided in the embodiment of the present application is used to realize the functions of the above-mentioned terminal equipment.
  • the device may be a terminal device or a device for a terminal device.
  • the apparatus for a terminal device may be a chip system or a chip in the terminal device.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • the communication device 60 includes at least one processor 620, configured to implement the data processing function of the terminal device in the method provided by the embodiment of the present application.
  • the apparatus 60 may further include a communication interface 610, configured to implement the transceiving operation of the terminal device in the method provided by the embodiment of the present application.
  • the communication interface may be a transceiver, a circuit, a bus, a module or other types of communication interfaces for communicating with other devices through a transmission medium.
  • the communication interface 610 is used for devices in the device 60 to communicate with other devices.
  • the processor 620 uses the communication interface 610 to send and receive data, and is used to implement the method described in FIG. 2 of the above method embodiment.
  • Apparatus 60 may also include at least one memory 630 for storing program instructions and/or data.
  • the memory 630 is coupled to the processor 620 .
  • the coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
  • Processor 620 may cooperate with memory 630 .
  • Processor 620 may execute program instructions stored in memory 630 . At least one of the at least one memory may be included in the processor.
  • the processor 620 can read the software program in the memory 630, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor 620 performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 620, and the processor 620 converts the baseband signal into data and processes the data deal with.
  • the radio frequency circuit and antenna can be set independently from the processor 620 for baseband processing. layout.
  • a specific connection medium among the communication interface 610, the processor 620, and the memory 630 is not limited.
  • the memory 630, the processor 620, and the communication interface 610 are connected through the bus 640.
  • the bus is represented by a thick line in FIG. 6, and the connection mode between other components is only for schematic illustration. , is not limited.
  • the bus can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in FIG. 6 , but it does not mean that there is only one bus or one type of bus.
  • the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or Execute the methods, operations and logic block diagrams disclosed in the embodiments of the present application.
  • a general purpose processor may be a microprocessor or any conventional processor or the like. The operations of the method disclosed in the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.
  • FIG. 7 is a schematic structural diagram of a module device provided by an embodiment of the present application.
  • the module device 70 can execute the relevant steps of the terminal device in the foregoing method embodiments, and the module device 70 includes: a communication module 701 , a power module 702 , a storage module 703 and a chip module 704 .
  • the power supply module 702 is used to provide electric energy for the module device; the storage module 703 is used to store data and instructions; the communication module 701 is used for internal communication of the module device, or for The module device communicates with external devices.
  • the chip module 704 is configured to send a first message, the first message includes description information, the description information is used to describe the requested network slice, and the first message is used to request slice information matching the description information; Receive the second message, the second message includes slice information; determine the target VPLMN according to the slice information, the target VPLMN is one or more of the various PLMNs corresponding to the visited location; obtain the slice service provided by the above network slice from the target VPLMN.
  • the embodiment of the present application also provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instruction is run on a processor, the method flow of the above-mentioned method embodiment is implemented.
  • the embodiment of the present application further provides a computer program product.
  • the computer program product is run on a processor, the method flow of the above method embodiment is implemented.

Abstract

本申请公开了一种切片服务获取方法及相关装置,在漫游场景下,可以快速获取特定的切片服务。该方法可包括:发送包括描述信息的第一消息,该描述信息用于描述请求的网络切片,第一消息用于请求与该描述信息相匹配的切片信息;接收包括该切片信息的第二消息;根据该切片信息确定目标VPLMN,目标VPLMN为拜访地对应的多种PLMN中的一种或多种;从目标VPLMN获取网络切片提供的切片服务。

Description

切片服务获取方法及相关装置 技术领域
本申请涉及通信领域,尤其涉及切片服务获取方法及相关装置。
背景技术
网络切片,将运营商的物理网络划分为多个虚拟网络,每个虚拟网络根据不同的服务需求,以灵活的应对不同的网络应用场景,例如第五代通信技术(5 th-generation,5G)涉及的增强移动带宽(enhanced mobile broadband,eMBB)场景,高可靠低时延传输(ultra-reliable low latency communication,uRLLC)场景,大规模机器类型通信(massive machine type of communication,mMTC)场景。
在非漫游场景下,用户设备(user equipment,UE)可以从归属地公共陆地移动网络(home public land mobile network,HPLMN)订阅多个网络切片,以获得网络切片提供的切片服务。在漫游场景下,UE首次进入拜访地并且UE上不存在任何预置切片信息时,UE向最优选的拜访地公共陆地移动网络(visited public land mobile network,VPLMN)注册,以从最优选的VPLMN获得网络切片提供的切片服务。
在漫游场景下,如何快速获取特定的切片服务是亟待解决的技术问题。
发明内容
本申请提供一种切片服务获取方法及相关装置,在漫游场景下,可以快速获取特定的切片服务。
第一方面,本申请提供一种切片服务获取方法,该方法可包括:发送第一消息,第一消息包括描述信息,该描述信息用于描述请求的网络切片,第一消息用于请求与该描述信息相匹配的切片信息;接收第二消息,第二消息包括切片信息;根据该切片信息确定目标VPLMN,目标VPLMN为拜访地对应的多种PLMN中的一种或多种;从目标VPLMN获取上述网络切片提供的切片服务。
通过第一方面所描述的方法,终端设备通过在第一消息中携带描述信息,以从目标VPLMN获取特定的切片服务。请求的网络切片提供的切片服务可以理解为特定的切片服务。
在一种可能的实现方式中,上述描述信息包括网络切片选择辅助信息(network slice selection assistance information,NSSAI)和/或NSSAI规则,该NSSAI规则用于指示位置信息和/或时间信息。通过NSSAI和/或NSSAI规则来描述请求的网络切片,以便获取相匹配的切片信息。
在一种可能的实现方式中,上述第一消息还包括指示信息,该指示信息用于指示第一消息包括上述描述信息。
在一种可能的实现方式中,在获知终端设备将移动至拜访地的情况下,发送第一消息;或,在不存在与描述信息相匹配的切片信息的情况下,发送第一消息。
在一种可能的实现方式中,上述目标VPLMN与拜访地对应的多种PLMN中的最优选PLMN不同或相同。
在一种可能的实现方式中,上述第一消息为策略配置请求消息,上述第二消息为管理策略指令或策略配置拒绝消息。
在一种可能的实现方式中,上述第一消息为注册请求消息,上述第二消息为管理策略指令。
第二方面,本申请提供了一种通信装置,该通信装置包括通信单元和处理单元,其中:该通信单元,用于发送第一消息,第一消息包括描述信息,该描述信息用于描述请求的网络切片,第一消息用于请求与该描述信息相匹配的切片信息;接收第二消息,第二消息包括切片信息;该处理单元,用于根据该切片信息确定目标VPLMN,目标VPLMN为拜访地对应的多种PLMN中的一种或多种;该通信单元,还用于从目标VPLMN获取上述网络切片提供的切片服务。
第三方面,本申请提供了一种通信装置,所述通信装置包括处理器、存储器和收发器,所述收发器,用于接收信号或者发送信号;所述存储器,用于存储程序代码;所述处理器,用于从所述存储器调用所述程序代码执行如第一方面及其任一种可能的实现方式中的方法。
第四方面,本申请提供了一种芯片,该芯片,用于发送第一消息,第一消息包括描述信息,该描述信息用于描述请求的网络切片,第一消息用于请求与该描述信息相匹配的切片信息;接收第二消息,第二消息包括切片信息;根据该切片信息确定目标VPLMN,目标VPLMN为拜访地对应的多种PLMN中的一种或多种;从目标VPLMN获取上述网络切片提供的切片服务。
第五方面,本申请提供了一种模组设备,该模组设备包括通信模组、电源模组、存储模组以及芯片模组,其中:该电源模组用于为该模组设备提供电能;该存储模组用于存储数据和指令;该通信模组用于进行模组设备内部通信,或者用于该模组设备与外部设备进行通信;该芯片模组用于:发送第一消息,第一消息包括描述信息,该描述信息用于描述请求的网络切片,第一消息用于请求与该描述信息相匹配的切片信息;接收第二消息,第二消息包括切片信息;根据该切片信息确定目标VPLMN,目标VPLMN为拜访地对应的多种PLMN中的一种或多种;从目标VPLMN获取上述网络切片提供的切片服务。
第六方面,本申请提供了一种计算机可读存储介质,该计算机存储介质中存储有计算机可读指令,当该计算机可读指令在通信装置上运行时,使得该通信装置执行上述第一方面及其任一种可能的实现方式中的方法。
第七方面,本申请提供一种计算机程序或计算机程序产品,包括代码或指令,当代码或指令在计算机上运行时,使得计算机执行如第一方面的及其任一种可能的实现方式中的方法。
附图说明
为了更清楚地说明本申请实施例技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图是本申请的一些实施例,对于本邻域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是一种5G系统架构示意图;
图2是应用本申请实施例的网络架构示意图;
图3是本申请实施例提供的一种切片服务获取方法的流程示意图;
图4是本申请实施例提供的另一种切片服务获取方法的流程示意图;
图5是本申请实施例提供的一种通信装置的结构示意图;
图6是本申请实施例提供的又一种通信装置的结构示意图;
图7是本申请实施例提供的一种模组设备的结构示意图。
具体实施方式
本申请以下实施例中所使用的术语只是为了描述特定实施例的目的,而并非旨在作为对本申请的限制。如在本申请的说明书和所附权利要求书中所使用的那样,单数表达形式“一个”、“一种”、“该”、“上述”、“该”和“这一”旨在也包括复数表达形式,除非其上下文中明确地有相反指示。还应当理解,本申请中使用的术语“和/或”是指并包含一个或多个所列出项目的任何或所有可能组合。
需要说明的是,本申请的说明书和权利要求书中及上述附图中的属于“第一”、“第二”、“第三”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本申请的实施例能够以除了在这里图示或描述以外的顺序实施。此外,术语“包括”及其任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或服务器不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
本申请实施例可以应用于5G系统,也可以称为新空口(new radio,NR)系统;或者还可以应用于第六代(6th generation,6G)系统,或者第七代(7th generation,7G)系统,或未来的其他通信系统;或者还可用于设备到设备(device to device,D2D)系统,机器到机器(machine to machine,M2M)系统等等。本申请实施例可以应用于车联网(vehicle to everything,V2X)领域,还可以应用于其他领域。
请参考图1,是一种5G系统架构示意图。图1可以是5G非漫游基于参考点的系统架构,可以包括终端设备、接入网和核心网。
其中,终端设备是一种具有无线收发功能的设备,可以部署在陆地上,包括室内或室外、手持、穿戴或车载;也可以部署在水面上(如轮船等);还可以部署在空中(例如飞机、气球和卫星上等)。终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备、工业控制(industrial control)中的无线终端、车载终端设备、无人驾驶(self driving)中的无线终端等等。终端设备有时也可以称为终端、UE、接入终端设备、车载终端、工业控制终端、UE单元、UE站、移动站、移动台、远方站、远程终端设备、移动设备、UE代理或UE装置等。终端设备也可以是固定的或者移动的。应用在本申请实施例中,终端设备是移动的。
其中,接入网用于实现接入有关的功能,可以为特定区域的授权用户提供入网功能, 并能够根据用户的级别,业务的需求等确定不同质量的传输隧道以传输用户数据。接入网在终端设备与核心网之间转发控制信号和用户数据。
接入网可以包括接入网设备,接入网设备可以是为终端设备提供接入的设备。在采用不同的无线接入技术的系统中,接入网设备名称可能会有所不同,例如,在5G系统中,称为下一代基站(next-generation Node basestation,gNB)或ng-eNB等。
其中,核心网负责维护移动网络的签约数据,为UE提供会话管理、移动性管理、策略管理以及安全认证等功能。核心网可以包括如下网元:用户面功能(user plane function,UPF)、认证服务功能(authentication server function,AUSF)、接入和移动性管理功能(access and mobility management function,AMF)、会话管理功能(session management function,SMF)、网络切片选择功能(network slice selection function,NSSF)、网络开放功能(network exposure function,NEF)、网络功能仓储功能(NF repository function,NRF)、策略控制功能(policy control function,PCF)、统一数据管理(unified data management,UDM)和应用功能(application function,AF)。
AMF,主要负责移动网络中的移动性管理,例如用户位置更新、用户注册网络、用户切换等。SMF,主要负责移动网络中的会话管理,例如会话建立、修改、释放。具体功能例如为用户分配互联网协议(internet protocol,IP)地址,选择提供报文转发功能的UPF等。UPF,负责终端设备中用户数据的转发和接收,可以从数据网络接收用户数据,通过接入网络设备传输给终端设备;还可以通过接入网络设备从终端设备接收用户数据,转发至数据网络。PCF,主要支持提供统一的策略框架来控制网络行为,提供策略规则给控制层网络功能,同时负责获取与策略决策相关的用户签约信息。PCF可以向AMF、SMF提供策略,例如服务质量(quality of service,QoS)策略、切片选择策略等。AUSF,用于执行UE的安全认证。NSSF,用于为UE选择网络切片。NEF,主要用于支持能力和事件的开放。NRF,用于为其它网元提供网络功能实体信息的存储功能和选择功能。UDM,用于存储用户数据,例如签约数据、鉴权/授权数据等。AF,主要支持与3GPP核心网交互来提供服务,例如影响数据路由决策,策略控制功能或者向网络侧提供第三方的一些服务。
其中,数据网络(data network,DN)用于为用户提供业务服务,可以是私有网络,例如局域网;也可以是不受运营商管控的外部网络,例如互联网(Internet);还可以是运营商共同部署的专有网络,例如提供IP多媒体子系统(IP multimedia subsystem,IMS)的网络。
首先,对本申请实施例涉及的部分名词进行解释,以便于本领域技术人员的理解。
1、网络切片
网络切片,以端到端、按需定制和隔离为特征的逻辑网络,其通过对功能、性能、连接关系、运维等的灵活设计,可以为不同的业务或用户群提供差异化的网络服务。端到端是指网络切片不仅需要核心网,还要包括接入网、传输网、管理网络等;按需定制是指可按需定制网络切片的业务、功能、容量、服务质量与连接关系,同时还可以按需进行切片的生命周期管理;隔离性包括安全隔离、资源隔离与操作维护隔离等。
2、NSSAI
NSSAI是单一网络切片选择辅助信息(single network slice selection assistance  information,S-NSSAI)的集合,用于标识一组网络切片。S-NSSAI用于唯一标识一个网络切片。NSSAI的种类可分为:
(1)配置的NSSAI(configured NSSAI),预先配置在UE中的NSSAI,该NSSAI也可由NSSF或AMF生成并下发至UE,主要用于生成初始注册时使用的请求的NSSAI(requested NSSAI)。
(2)签约的NSSAI(subscribed NSSAI),存储在UDM中的用户签约的NSSAI信息。
(3)允许的NSSAI(allowed NSSAI),允许UE在当前注册去接入的NSSAI。
(4)拒绝的NSSAI(rejected NSSAI),拒绝UE接入的切片。对于PLMN不支持的切片,UE在该PLMN下不能再接入;对于当前注册区不支持的切片,UE在移出该注册区前不能再接入。
(5)请求的NSSAI(requested NSSAI),由UE根据配置的NSSAI和允许的NSSAI生成,可携带在初始注册消息的无线资源控制(radio resource control,RRC)与非接入层(non-access-stratum,NAS)消息中,表示UE在本次注册中请求使用的NSSAI。本申请实施例涉及请求的NSSAI。
请参见图2,是应用本申请实施例的网络架构示意图。该网络架构为漫游场景下的网络架构,包括UE、HPLMN和VPLMN。HPLMN包括图1所示的接入网和核心网,VPLMN也包括图1所示的接入网和核心网。
HPLMN为UE归属的PLMN,全球用户识别模块(universal subscriber identity module,USIM)卡上的国际移动用户识别码(International mobile subscriber identification number,IMSI)中包含的移动国家码(mobile country code,MCC)和移动网络码(mobile network code,MNC)与HPLMN上的MCC和MNC是一致的。对单卡UE而言,其HPLMN有一个,对双卡UE而言,其HPLMN有一个或两个。VPLMN为UE访问的PLMN,USIM卡上的IMSI中MCC和MNC与VPLMN上的MCC和MNC不完全相同。对UE而言,其VPLMN有一个或多个,视拜访地网络情况而定。
本申请实施例可以应用于UE从HPLMN移动至VPLMN的场景,例如UE从国家A移动至国家B,也可以应用于UE将要从HPLMN移动至VPLMN的场景,例如UE将于两个小时后从国家A的城市C飞往国家B的城市D。
在本申请的一种实施方式中,UE向一个VPLMN发送包括描述信息的第一消息,该描述信息用于描述请求的网络切片,第一消息用于请求与该描述信息相匹配的切片信息;该VPLMN无法提供该网络切片的切片服务,从HPLMN获取与该描述信息相匹配的切片信息,并向UE发送包括该切片信息的第二消息;UE根据该切片信息确定目标VPLMN,并从目标VPLMN获取该网络切片提供的切片服务,从而使得UE可以快速获取特定的切片服务。请求的网络切片提供的切片服务可以理解为特定的切片服务。
在本申请的另一种实施方式中,UE向HPLMN发送包括描述信息的第一消息,该描述信息用于描述请求的网络切片,第一消息用于请求与该描述信息相匹配的切片信息;HPLMN向UE提供与该描述信息相匹配的切片信息,通过第二消息发送该切片信息;UE根据该切片信息确定目标VPLMN,并从目标VPLMN获取该网络切片提供的切片服务,从而使得UE可以快速获取特定的切片服务。
请参考图3,是本申请实施例提供的一种切片服务获取方法的流程示意图,该方法可以包括但不限于如下步骤:
301,发送第一消息,第一消息包括描述信息,该描述信息用于描述请求的网络切片,第一消息用于请求与描述信息相匹配的切片信息。
其中,描述信息用于描述请求的网络切片,请求的网络切片也可以理解为所需的网络切片。请求的网络切片提供的切片服务可以理解为特定的切片服务,或目的性明确的切片服务,或具有针对性的切片服务。描述信息包括NSSAI和/或NSSAI规则(rule),该NSSAI即为requested NSSAI,可参考协议3GPP TS 24 501clause 9.11.3.37对其的定义。NSSAI规则用于指示位置信息和/或时间信息,通过位置信息和/或时间信息描述所需的网络切片。需要说明的是,描述信息、requested NSSAI以及NSSAI规则用于举例,并不构成对本申请实施例的限定。
可以理解的是,描述信息包括NSSAI,第一消息包括requested NSSAI,用于指示请求使用的网络切片;描述信息包括NSSAI规则,用于指示请求使用满足该规则的网络切片。当UE需要获取特定的一个或多个网络切片提供的切片服务时,可以在第一消息中携带requested NSSAI;当UE需要获取满足位置信息和/或时间信息的网络切片时,可以在第一消息中携带NSSAI规则;当UE需要获取特定的且满足位置信息和/或时间信息的网络切片时,可以在第一消息中携带requested NSSAI和NSSAI规则。
在一种实现方式中,NSSAI规则信息单元(information element,IE)可参见下表1所示。
Figure PCTCN2022127319-appb-000001
表1
表1中,validity area ind,3GPP loc ind,WLAN loc ind,Geo loc ind,time of day ind,Validity area和Time of day的定义可以参考3GPP TS 24.526的描述。其中,validity area ind,3GPP loc ind,WLAN loc ind,Geo loc ind和Validity area可表示位置信息,time of day ind和Time of day可表示时间信息。Validity area可以用多种位置类型表达,可以是不同的位置精度,如3GPP表达时,可以通过除MCC之外其它表示为无效值来代表国家。也可以进一步扩充,设置Validity area的范围,如地理围栏等,此处不再展开。
第一消息可以是策略配置请求消息,例如UE POLICY PROVISIONING REQUEST消息,也可以是注册请求消息,例如REGISTRATION REQUEST消息。
在一种实现方式中,UE在获知其将移动至拜访地,例如,UE在5小时后将从国家A的城市C飞往国家B的城市D,且UE和USIM卡中不存在拜访地的网络切片信息的情况下,若UE在国家A注册上的是HPLMN,那么向HPLMN发送第一消息,以从HPLMN预先获得城市D的切片信息,该切片信息可以包括与HPLMN签约的城市D的VPLMN的 切片信息;若UE在国家A注册上的是VPLMN-A,那么向VPLMN-A发送第一消息,VPLMN-A从HPLMN获取切片信息并发送至UE,以使UE预先获得城市D的切片信息。
在一种实现方式中,UE从归属地漫游至拜访地,拜访地的最优选VPLMN不能支持所有需要的网络切片,但是拜访地中存在一个VPLMN支持在最优选VPLMN中不可用的切片。当UE首次进入拜访地且UE和USIM卡无任何预配置网络切片信息时,向最优选VPLMN注册并发送第一消息,以便最优选VPLMN从HPLMN获取切片信息。
在一种实现方式中,在UE上不存在与描述信息相匹配的切片信息的情况下,向拜访地的一个VPLMN发送第一消息。例如,UE曾经保存过拜访地的网络切片信息,但是由于存储容量有效,相关数据已被清除,在需要使用某个网络切片时,向拜访地的一个VPLMN发送第一消息。
可选的,第一消息还包括指示信息,该指示信息用于指示第一消息包括描述信息。例如,该指示信息为1比特,其取值为“0”时,表示第一消息不包括描述信息,其取值为“1”时,表示第一消息包括描述信息。
302,接收第二消息,第二消息包括切片信息。
其中,切片信息可以包括与HPLMN签约的拜访地的VPLMN的切片信息,可用于确定网络切片与PLMN之间的对应关系。归属地运营商与各种其他运营商具有协议,以支持用于漫游UE的相同网络切片。可以理解的是,VPLMN可基于协议从HPLMN获取网络切片与PLMN之间的对应关系。
可选的,UE接收来自HPLMN的第二消息,或接收来自拜访地的最优选VPLMN的第二消息,该第二消息包括切片信息,该切片信息为与描述信息匹配的NSSAI配置信息,用于指示请求的网络切片与PLMN之间的对应关系。
在第一消息为策略配置请求消息的情况下,第二消息可以是管理策略指令或策略配置拒绝消息。在第一消息为注册请求消息的情况下,第二消息可以是管理策略指令。管理策略指令,例如MANAGE UE POLICY COMMAND;策略配置拒绝消息,例如UE POLICY PROVISIONING REJECT消息。
303,根据切片信息确定目标VPLMN,目标VPLMN为拜访地对应的多种PLMN中的一种或多种。
可选的,UE根据切片信息包括的对应关系,确定请求的网络切片对应的VPLMN,即目标VPLMN。可以理解的是,目标VPLMN支持请求的网络切片。目标VPLMN与拜访地对应的多种PLMN中的最优PLMN可以不同,例如在最优选PLMN无法提供所需网络切片的切片服务时,目标VPLMN与最优选PLMN不同。目标VPLMN与拜访地对应的多种PLMN中的最优PLMN可以相同,例如,在提前获知切片信息的情况下,所需网络切片对应的PLMN包括最优选PLMN,或将目标PLMN作为最优选PLMN。
示例性的,拜访地对应的PLMN包括VPLMN-A、VPLMN-B和VPLMN-C,其中VPLMN-B和VPLMN-C可以提供所需网络切片的切片服务,在不考虑所需网络切片的情况下,按照选网规则VPLMN-A为最优选PLMN,即UE向VPLMN-A进行注册。若UE提前获知了VPLMN-B和VPLMN-C与所需网络切片之间的对应关系,那么UE向VPLMN-B或VPLMN-C进行注册,以获得所需网络切片的切片服务。若UE未提前获知VPLMN-B 和VPLMN-C与所需网络切片之间的对应关系,那么UE向VPLMN-A进行注册,并向VPLMN-A发送第一消息。
304,从目标VPLMN获取网络切片提供的切片服务。
在确定目标VPLMN的情况下,UE向目标VPLMN进行注册,以获取所需网络切片提供的切片服务。
示例性的,在UE从国家A的城市C漫游至国家B的城市D的情况下,城市D对应的PLMN包括VPLMN-A、VPLMN-B和VPLMN-C,按照选网规则UE将注册到最优选PLMN,即VPLMN-A。当UE上的某个应用需要使用网络切片1时,UE向VPLMN-A发送第一消息,VPLMN-A从HPLMN获知网络切片在VPLMN-C上协议可用,并将该对应关系转发给UE。UE在获知网络切片在VPLMN-C上协议可用的情况下,可自动选网,断开与VPLMN-A之间的连接,并向VPLMN-C注册;或可通过手动选网的方式,断开与VPLMN-A之间的连接,并向VPLMN-C注册,在从VPLMN-C获得网络切片1提供的切片服务之后,断开与VPLMN-C之间的连接,重新与VPLMN-A连接。
在图3所示的实施例中,UE通过在第一消息中携带描述信息,以从目标VPLMN获取特定的切片服务。
请参考图4,是本申请实施例提供的另一种切片服务获取方法的流程示意图,该方法可以包括但不限于如下步骤:
401,UE向VPLMN-A发送UE策略配置请求消息。相应的,VPLMN-A接收来自UE的UE策略配置请求消息。
在图4所示实施例中,假设UE注册上的是VPLMN-A,VPLMN-A为拜访地对应的PLMN中的最优选PLMN。UE策略配置请求消息可以是UE POLICY PROVISIONING REQUEST消息。具体的,UE向VPLMN-A中的AMF发送UE策略配置请求消息。
其中,UE策略配置请求消息包括描述信息,描述信息包括NSSAI和/或NSSAI规则。UE POLICY PROVISIONING REQUEST消息包括的内容可参见下表2。
Figure PCTCN2022127319-appb-000002
表2
表2中,最后两行为可用于表示描述信息。NSSAI Rule可参见表1。
402,VPLMN-A从HPLMN获取切片信息。
具体的,VPLMN-A从HPLMN获取切片信息可包括:AMF接收到UE策略配置请求消息时,向VPLMN-A中的V-PCF(即拜访地网络中的PCF)发送Npcf_UE PolicyControl_Updata request;V-PCF向H-PCF(即归属地网络中的PCF)发送Npcf_UE PolicyControl_Updata request,H-PCF向V-PCF发送Npcf_UE PolicyControl_Updata response;V-PCF向AMF发送Npcf_UE PolicyControl_Updata response。可选的,还包括:H-PCF向V-PCF发送Npcf_UE PolicyControl_Updata Notify request,V-PCF向H-PCF发送Npcf_UE PolicyControl_Updata Notify response。其中,Npcf_UE PolicyControl_Updata response可包括切片信息。
403,VPLMN-A向UE发送UE管理策略指令。相应的,UE接收来自VPLMN-A的UE管理策略指令。其中,UE管理策略指令包括切片信息。
404,UE根据切片信息确定VPLMN-C。
405,UE从VPLMN-C获取网络切片提供的切片服务。
在图4所示的实施例中,假设VPLMN-C为所需网络切片对应的VPLMN。步骤403至步骤405可参考步骤302至步骤304的具体描述,在此不再赘述。
在图4所示的实施例中,UE通过在第一消息中携带描述信息,以从目标VPLMN获取特定的切片服务。
作为一种可选的实施例,若UE注册上的是HPLMN,那么UE向HPLMN发送第一消息,HPLMN在接收到第一消息的情况下,直接从H-PCF获得切片信息,并向UE发送包括切片信息的第二消息,以便UE根据切片信息确定目标VPLMN。
图4所示实施例中,UE发送包括描述信息的UE策略配置请求消息,以获得与描述信息相匹配的切片信息,在另一种实现方式中,UE发送包括描述信息的注册请求消息,在完成注册之后,网络(HPLMN或VPLMN)向UE发送包括切片信息的管理策略指令。
其中,注册请求消息包括的内容可参见下表3。
Figure PCTCN2022127319-appb-000003
Figure PCTCN2022127319-appb-000004
Figure PCTCN2022127319-appb-000005
表3
表3中,最后两行为可用于表示描述信息。NSSAI Rule可参见表1。需要说明的是,表3中最后两行的名称用于举例,并不构成对本申请实施例的限定。
采用本申请实施例,若UE为移动范围小的终端,那么UE发送的第一消息可用于查找一个小范围内的可用网络切片,例如查找某个酒店范围内的可用网络切片;若UE在某个时间段内在某个区域活动,那么UE发送的第一消息可用于查找该区域该时间段内有效的网络切片;若UE需要某个或某几个网络切片,那么UE发送的第一消息可用于查找对应的网络切片;若UE存储空间足够大,那么UE发送的第一消息可用于查找足够多位置范围内的网络切片。
请参见图5,图5示出了本申请实施例的一种通信装置的结构示意图。图5所示的通信装置可以用于执行上述图3或图4中UE的部分或全部功能。该装置可以是UE,也可以是UE中的装置,或者是能够和UE匹配使用的装置。其中,该通信装置还可以为芯片系统。图4所示的通信装置可以包括通信单元501和处理单元502。其中,处理单元502,用于进行数据处理。通信单元501,用于与其他设备进行通信。通信单元501集成有接收单元和发送单元。通信单元501也可以称为收发单元。或者,也可将通信单元501拆分为接收单元和发送单元。
其中,通信单元501,用于发送第一消息,第一消息包括描述信息,该描述信息用于描述请求的网络切片,第一消息用于请求与该描述信息相匹配的切片信息;接收第二消息,第二消息包括切片信息;处理单元502,用于根据该切片信息确定目标VPLMN,目标VPLMN为拜访地对应的多种PLMN中的一种或多种;通信单元501,还用于从目标VPLMN获取上述网络切片提供的切片服务。
在一种可能的实现方式中,上述描述信息包括NSSAI和/或NSSAI规则,所述NSSAI规则用于指示位置信息和/或时间信息。
在一种可能的实现方式中,上述第一消息还包括指示信息,该指示信息用于指示第一 消息包括描述信息。
在一种可能的实现方式中,通信单元501,具体用于在获知终端设备将移动至所述拜访地的情况下,发送第一消息;或,在不存在与所述描述信息相匹配的切片信息的情况下,发送第一消息。
在一种可能的实现方式中,目标VPLMN与拜访地对应的多种PLMN中的最优选PLMN不同或相同。
在一种可能的实现方式中,上述第一消息为策略配置请求消息,第二消息为管理策略指令或管理配置拒绝消息。
在一种可能的实现方式中,上述第一消息为注册请求消息,第二消息为管理策略指令。
本申请实施例还提供一种芯片,该芯片可以执行前述方法实施例中UE相关步骤。该芯片用于:用于发送第一消息,第一消息包括描述信息,该描述信息用于描述请求的网络切片,第一消息用于请求与该描述信息相匹配的切片信息;接收第二消息,第二消息包括切片信息;根据该切片信息确定目标VPLMN,目标VPLMN为拜访地对应的多种PLMN中的一种或多种;从目标VPLMN获取上述网络切片提供的切片服务。
如图6所示为本申请实施例提供的一种通信装置60,用于实现上述终端设备的功能。该装置可以是终端设备或用于终端设备的装置。用于终端设备的装置可以为终端设备内的芯片系统或芯片。其中,芯片系统可以由芯片构成,也可以包含芯片和其他分立器件。
通信装置60包括至少一个处理器620,用于实现本申请实施例提供的方法中终端设备的数据处理功能。装置60还可以包括通信接口610,用于实现本申请实施例提供的方法中终端设备的收发操作。在本申请实施例中,通信接口可以是收发器、电路、总线、模块或其它类型的通信接口,用于通过传输介质和其它设备进行通信。例如,通信接口610用于装置60中的装置可以和其它设备进行通信。处理器620利用通信接口610收发数据,并用于实现上述方法实施例图2所述的方法。
装置60还可以包括至少一个存储器630,用于存储程序指令和/或数据。存储器630和处理器620耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接,可以是电性,机械或其它的形式,用于装置、单元或模块之间的信息交互。处理器620可能和存储器630协同操作。处理器620可能执行存储器630中存储的程序指令。所述至少一个存储器中的至少一个可以包括于处理器中。
当装置60开机后,处理器620可以读取存储器630中的软件程序,解释并执行软件程序的指令,处理软件程序的数据。当需要通过无线发送数据时,处理器620对待发送的数据进行基带处理后,输出基带信号至射频电路,射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到装置60时,射频电路通过天线接收到射频信号,将射频信号转换为基带信号,并将基带信号输出至处理器620,处理器620将基带信号转换为数据并对该数据进行处理。
在另一种实现中,所述的射频电路和天线可以独立于进行基带处理的处理器620而设置,例如在分布式场景中,射频电路和天线可以与独立于通信装置,呈拉远式的布置。
本申请实施例中不限定上述通信接口610、处理器620以及存储器630之间的具体连接介质。本申请实施例在图6中以存储器630、处理器620以及通信接口610之间通过总 线640连接,总线在图6中以粗线表示,其它部件之间的连接方式,仅是进行示意性说明,并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示,图6中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。
装置60具体是用于终端设备时,例如装置60具体是芯片或者芯片系统时,通信接口610所输出或接收的可以是基带信号。装置60具体是终端设备时,通信接口610所输出或接收的可以是射频信号。在本申请实施例中,处理器可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件,可以实现或者执行本申请实施例中的公开的各方法、操作及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的操作可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。
如图7所示,图7是本申请实施例提供的一种模组设备的结构示意图。该模组设备70可以执行前述方法实施例中终端设备的相关步骤,该模组设备70包括:通信模组701、电源模组702、存储模组703以及芯片模组704。
其中,所述电源模组702用于为所述模组设备提供电能;所述存储模组703用于存储数据和指令;所述通信模组701用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信。
其中,所述芯片模组704,用于发送第一消息,第一消息包括描述信息,该描述信息用于描述请求的网络切片,第一消息用于请求与该描述信息相匹配的切片信息;接收第二消息,第二消息包括切片信息;根据该切片信息确定目标VPLMN,目标VPLMN为拜访地对应的多种PLMN中的一种或多种;从目标VPLMN获取上述网络切片提供的切片服务。
本申请实施例还提供一种计算机可读存储介质,该计算机可读存储介质中存储有指令,当其在处理器上运行时,上述方法实施例的方法流程得以实现。
本申请实施例还提供一种计算机程序产品,当所述计算机程序产品在处理器上运行时,上述方法实施例的方法流程得以实现。
需要说明的是,对于前述的各方法实施例,为了简单描述,故将其都表述为一系列的动作组合,但是本领域技术人员应该知悉,本申请并不受所描述的动作顺序的限制,因为依据本申请,某些操作可以采用其他顺序或者同时进行。其次,本领域技术人员也应该知悉,说明书中所描述的实施例均属于优选实施例,所涉及的动作和模块并不一定是本申请所必须的。
本申请提供的各实施例的描述可以相互参照,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见其他实施例的相关描述。为描述的方便和简洁,例如关于本申请实施例提供的各装置、设备的功能以及执行的操作可以参照本申请方法实施例的相关描述,各方法实施例之间、各装置实施例之间也可以互相参考、结合或引用。
最后应说明的是:以上各实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述各实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (21)

  1. 一种切片服务获取方法,其特征在于,所述方法包括:
    发送第一消息,所述第一消息包括描述信息,所述描述信息用于描述请求的网络切片,所述第一消息用于请求与所述描述信息相匹配的切片信息;
    接收第二消息,所述第二消息包括所述切片信息;
    根据所述切片信息确定目标拜访地公共陆地移动网络VPLMN,所述目标VPLMN为拜访地对应的多种公共陆地移动网络PLMN中的一种或多种;
    从所述目标VPLMN获取所述网络切片提供的切片服务。
  2. 根据权利要求1所述的方法,其特征在于,所述描述信息包括网络切片选择辅助信息NSSAI和/或NSSAI规则,所述NSSAI规则用于指示位置信息和/或时间信息。
  3. 根据权利要求1所述的方法,其特征在于,所述第一消息还包括指示信息,所述指示信息用于指示所述第一消息包括所述描述信息。
  4. 根据权利要求1所述的方法,其特征在于,所述发送第一消息包括:
    在获知终端设备将移动至所述拜访地的情况下,发送第一消息;
    或,在不存在与所述描述信息相匹配的切片信息的情况下,发送第一消息。
  5. 根据权利要求1所述的方法,其特征在于,所述发送第一消息包括:
    在首次进入所述拜访地且不存在预配置网络切片信息的情况下,发送第一消息。
  6. 根据权利要求1所述的方法,其特征在于,所述目标VPLMN与所述拜访地对应的多种PLMN中的最优选PLMN不同或相同。
  7. 根据权利要求1至6任一项所述的方法,其特征在于,所述第一消息为策略配置请求消息,所述第二消息为管理策略指令或策略配置拒绝消息。
  8. 根据权利要求1至6任一项所述的方法,其特征在于,所述第一消息为注册请求消息,所述第二消息为管理策略指令。
  9. 根据权利要求1至6任一项所述的方法,其特征在于,所述切片信息用于确定所述网络切片与PLMN之间的对应关系;
    所述根据所述切片信息确定目标VPLMN,包括:
    根据所述对应关系,确定所述网络切片对应的目标VPLMN。
  10. 一种通信装置,其特征在于,所述通信装置包括处理单元和通信单元,
    所述通信单元,用于发送第一消息,所述第一消息包括描述信息,所述描述信息用于描述请求的网络切片,所述第一消息用于请求与所述描述信息相匹配的切片信息;接收第二消息,所述第二消息包括所述切片信息;
    所述处理单元,用于根据所述切片信息确定目标VPLMN,所述目标VPLMN为拜访地对应的多种PLMN中的一种或多种;
    所述通信单元,还用于从所述目标VPLMN获取所述网络切片提供的切片服务。
  11. 根据权利要求10所述的通信装置,其特征在于,所述描述信息包括网络切片选择辅助信息NSSAI和/或NSSAI规则,所述NSSAI规则用于指示位置信息和/或时间信息。
  12. 根据权利要求10所述的通信装置,其特征在于,所述第一消息还包括指示信息,所述指示信息用于指示所述第一消息包括所述描述信息。
  13. 根据权利要求10所述的通信装置,其特征在于,所述通信单元,具体用于在获知终端设备将移动至所述拜访地的情况下,发送第一消息;或,在不存在与所述描述信息相匹配的切片信息的情况下,发送第一消息。
  14. 根据权利要求10所述的通信装置,其特征在于,所述通信单元,具体用于在首次进入所述拜访地且不存在预配置网络切片信息的情况下,发送第一消息。
  15. 根据权利要求10所述的通信装置,其特征在于,所述目标VPLMN与所述拜访地对应的多种PLMN中的最优选PLMN不同或相同。
  16. 根据权利要求10至15任一项所述的通信装置,其特征在于,所述第一消息为策略配置请求消息,所述第二消息为管理策略指令或策略配置拒绝消息。
  17. 根据权利要求10至15任一项所述的通信装置,其特征在于,所述第一消息为注册请求消息,所述第二消息为管理策略指令。
  18. 根据权利要求10至15任一项所述的通信装置,其特征在于,所述切片信息用于确定所述网络切片与PLMN之间的对应关系;
    所述处理单元,具体用于根据所述对应关系,确定所述网络切片对应的目标VPLMN。
  19. 一种芯片,其特征在于,
    所述芯片,用于发送第一消息,所述第一消息包括描述信息,所述描述信息用于描述请求的网络切片,所述第一消息用于请求与所述描述信息相匹配的切片信息;接收第二消息,所述第二消息包括所述切片信息;根据所述切片信息确定目标VPLMN,所述目标 VPLMN为拜访地对应的多种PLMN中的一种或多种;从所述目标VPLMN获取所述网络切片提供的切片服务。
  20. 一种模组设备,其特征在于,所述模组设备包括通信模组、电源模组、存储模组以及芯片模组,其中:
    所述电源模组用于为所述模组设备提供电能;
    所述存储模组用于存储数据和指令;
    所述通信模组用于进行模组设备内部通信,或者用于所述模组设备与外部设备进行通信;
    所述芯片模组用于:发送第一消息,所述第一消息包括描述信息,所述描述信息用于描述请求的网络切片,所述第一消息用于请求与所述描述信息相匹配的切片信息;接收第二消息,所述第二消息包括所述切片信息;根据所述切片信息确定目标VPLMN,所述目标VPLMN为拜访地对应的多种PLMN中的一种或多种;从所述目标VPLMN获取所述网络切片提供的切片服务。
  21. 一种计算机可读存储介质,其特征在于,所述计算机存储介质中存储有计算机程序,当所述计算机程序在通信装置上运行时,使得所述通信装置执行权利要求1~9中任一项所述的方法。
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