WO2024007795A1 - Communication method and communication apparatus - Google Patents

Communication method and communication apparatus Download PDF

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Publication number
WO2024007795A1
WO2024007795A1 PCT/CN2023/098507 CN2023098507W WO2024007795A1 WO 2024007795 A1 WO2024007795 A1 WO 2024007795A1 CN 2023098507 W CN2023098507 W CN 2023098507W WO 2024007795 A1 WO2024007795 A1 WO 2024007795A1
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WIPO (PCT)
Prior art keywords
network slice
plmn
identifier
network
information
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PCT/CN2023/098507
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French (fr)
Chinese (zh)
Inventor
张柔佳
孙飞
Original Assignee
华为技术有限公司
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Publication of WO2024007795A1 publication Critical patent/WO2024007795A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0893—Assignment of logical groups to network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

Definitions

  • the present application relates to the field of communication technology, and in particular, to a communication method and communication device.
  • the fifth generation (5G) mobile communication technology provides users with customized network services through end-to-end network slicing. Through flexible allocation of network resources and on-demand networking, 5G operates on the same set of physical Multiple logical subnets with different characteristics and mutual isolation are virtualized on the facility to provide targeted services to users.
  • the terminal device after the terminal device determines the target network slice group identifier corresponding to the current service, it can obtain the target network slice based on the parameter information based on the network slice group (for example, called slice group) identifier broadcast by the base station. parameter information of the group ID, and then perform some operations based on the parameter information of the target network slice group ID.
  • the network slice group identifier indicates a group of network slices (called a network slice group), and each network slice in the group has its own network slice identifier and also has the same network slice group identifier.
  • the base station sends cell reselection priority parameter information based on the network slicing group identifier or random access parameter information based on the network slicing group identifier, so that the terminal device can reselect the cell priority parameter information based on the network slicing group identifier.
  • the base station when the base station broadcasts parameter information based on the network slice group identification, it usually uses the network slice group identification information in a public land mobile network (public land mobile network, PLMN) as a reference.
  • PLMN public land mobile network
  • a multi-operator core network multiple operator core network
  • MOCN operation core network
  • This application provides a communication method and communication device, which can enable a terminal device that selects a first PLMN to obtain correct parameter information from the broadcast parameter information based on the network slice group identifier in the second PLMN in MOCN mode. to execute the corresponding process.
  • this application provides a communication method, applied to core network equipment.
  • the method includes: receiving first identification information and second identification information from an access network equipment, where the first identification information instructs the terminal equipment to select The first public land mobile network PLMN, the second identification information indicates the second PLMN used by the access network device when broadcasting parameter information based on the network slice group identification, the first PLMN and the second PLMN Different; sending first indication information to the terminal device, the first indication information indicating the mapping relationship between the first network slice identifier and the first target network slice group identifier in the first PLMN, the first target The network slice group identifier is a network slice group identifier associated with the second network slice identifier in the second PLMN, and the first network slice identifier and the second network slice identifier indicate the same network slice service.
  • the first PLMN refers to the public land mobile network selected by the terminal device
  • the second PLMN refers to the public land mobile network or reference public land mobile network used by the access network device when broadcasting parameter information based on the network slice group identifier. mobile network.
  • the first identification information indicates the first PLMN
  • the second identification information indicates the second PLMN
  • the first PLMN and the second PLMN are different PLMNs.
  • the core network device after the core network device receives the first identification information and the second identification information, for the first network slice identifier in the first PLMN, if the core network device determines the network slice indicated by the first network slice identifier, The service also has a network slice identifier in the second PLMN (also referred to as the second network slice identifier in this application), that is, the first network slice identifier in the first PLMN and the second network slice identifier in the second PLMN indicate the same
  • the core network device since the core network device side can learn the network slicing group identifier in each PLMN and the network slicing identifier associated with each network slicing group identifier in each PLMN, the core network device can further determine the network slicing group identifier associated with the network slicing group identifier.
  • the network slice group identifier associated with the second network slice identifier in the second PLMN also referred to as the first target network slice group identifier in this application).
  • the core network device when it determines the network slice group identifier associated with the second network slice identifier in the second PLMN, it will send to the terminal device an indication of the first network slice identifier in the first PLMN and the first target network.
  • Information on the mapping relationship between slice group identifiers also referred to as first indication information in this application).
  • the terminal device that selects the first PLMN receives the mapping relationship indicated by the first indication information, if it is determined that the identifier of the network slice corresponding to the current service is the first network slice identifier, then it can be based on the mapping The relationship determines the first target network slice group identifier, so that when the access network device broadcasts the parameter information based on the network slice group identifier in the second PLMN, the terminal device can obtain the first target network slice group from the broadcast. Identified parameter information to ensure the accuracy of the obtained parameter information, so as to execute the corresponding process.
  • the first indication information includes mapping information between the first network slice identifier and the second network slice identifier and the second network slice identifier in the second PLMN and the first target network Mapping information between slice group identifiers.
  • the first instruction information sent by the core network device includes mapping information between the first network slice identifier and the second network slice identifier, as well as the second network slice identifier and the first target network slice group identifier in the second PLMN. mapping information between.
  • the terminal device determines that the identifier of the network slice corresponding to the current service is the first network slice identifier, it can first determine the second network slice identifier based on the mapping relationship, and then The first target network slice group identifier is determined based on the mapping information between the second network slice identifier and the first target network slice group identifier, so as to implement network slice group identifier-based broadcasting in the second PLMN from the access network device.
  • the first indication information includes mapping information between the first network slice identifier and the first target network slice group identifier.
  • the first indication information sent by the core network device directly includes the first network slice identifier and the Mapping information between the first target network slice group identifiers. It can be understood that, in this implementation manner, when the terminal device determines that the identifier of the network slice corresponding to the current service is the first network slice identifier, the first target network slice group can be determined directly based on the mapping relationship. The identifier is used to obtain the parameter information of the first target network slice group identifier from the parameter information based on the network slice group identifier in the second PLMN broadcast by the access network device.
  • the method further includes: sending second indication information to the terminal device, the second indication information including a third network slice identifier and a second target network slice group Mapping relationship between identifiers, the second target network slice group identifier is the network slice group identifier associated with the third network slice identifier in the first PLMN.
  • the core network device cannot find the network slice group identification information corresponding to the third network slice identification from the second PLMN.
  • the core network device when it cannot find the network slice group identification information corresponding to the third network slice identifier from the second PLMN, it sends an instruction indicating the third network slice identifier and the second target network slice to the terminal device. Indication information of the mapping relationship between group identifiers (also referred to as second indication information in this application), so that the terminal device can learn the network slice group identifier of the current third network slice identifier in the selected first PLMN.
  • the method further includes: receiving first information from the access network device, where the first information includes the network of each PLMN of the N public land mobile networks PLMN.
  • Slice group identifier, network slice identifier associated with each network slice group identifier in each PLMN, the N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
  • this application provides a communication method, applied to access network equipment, including: receiving first identification information from a terminal equipment, where the first identification information indicates the first public land mobile network PLMN selected by the terminal equipment; Send the first identification information and the second identification information to the core network device.
  • the second identification information indicates the second PLMN used by the access network device when broadcasting parameter information based on the network slice group identification.
  • the second PLMN is different from the first PLMN; the parameter information based on the network slice group identifier in the second PLMN is broadcast.
  • the first identification information indicates the first PLMN
  • the second identification information indicates the second PLMN
  • the first PLMN and the second PLMN are different PLMNs.
  • the access network device receives the first identification information of the terminal device, if it is determined that the first PLMN indicated by the first identification information is different from the second PLMN, where the second PLMN is the access network device
  • the PLMN referenced when broadcasting parameter information based on the network slice group identity then sends the first identification information indicating the first PLMN and the identification information indicating the second PLMN to the core network device, so that the core network device can determine the first PLMN.
  • the network slice group identification information corresponding to the network slice service indicated by a certain network slice identifier in the second PLMN.
  • the method further includes: sending third indication information to the terminal device, the third indication information being used to indicate to the terminal device the network slice-based The identification information of the PLMN to which the parameter information of the group identification is applicable or the identification information of the PLMN to which the parameter information of the group identification is not applicable.
  • the terminal device when the access network device broadcasts the parameter information based on the network slice group identifier in the second PLMN, the terminal device is also sent to the terminal device the identification information of the PLMN to which the parameter information of the network slice group identification is applicable or the identification information of the PLMN to which the parameter information of the network slice group identification is not applicable.
  • the method further includes: broadcasting parameter information in the first PLMN based on a second target network slice group identifier, the second target network slice group identifier being the same as the first target network slice group identifier. Three network slice identifiers are associated, and the network slice service indicated by the third network slice identifier does not have a corresponding network slice identifier in the second PLMN.
  • the access network device also broadcasts the parameter information based on the second PLMN in the first PLMN when broadcasting. Parameter information of the target network slicing group identification, so that the terminal device that selects the first PLMN can obtain the parameter information from the broadcast when performing the second network slicing service to execute the corresponding process.
  • the method further includes: sending first information to the core network device, where the first information includes a network slice group of each PLMN of the N public land mobile network PLMNs.
  • Identity, network slice identifier associated with each network slice group identifier in each PLMN, the N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
  • this application provides a communication method, applied to terminal equipment, including: receiving parameter information based on network slicing group identification in the second public land mobile network PLMN broadcast by the access network equipment; receiving parameter information from the core network equipment.
  • First indication information the first indication information indicates the mapping relationship between the first network slice identifier and the first target network slice group identifier in the first PLMN, which is the PLMN selected by the terminal device; determine the first When the network slice identifier corresponding to the target service is the first network slice identifier, parameter information based on the first target network slice group identifier is obtained from the broadcast.
  • the terminal device can receive the mapping relationship between the first network slice identifier in the first PLMN selected by the terminal device and the first target network slice group identifier in the second PLMN sent by the core network device, where , the second PLMN is the PLMN that the access network device refers to when broadcasting parameter information based on the network slice group identifier in the second PLMN; then, for the terminal device, if it is determined that the network slice identifier corresponding to the current service in the first PLMN is When identifying the first network slice, the network slice group identifier of the current service in the second PLMN can be determined as the first target network slice group identifier based on the mapping relationship indicated by the core network device, and then the network slice group identifier can be broadcast from the access network device.
  • the parameter information based on the first target network slice group identifier is obtained from the parameter information based on the network slice group identifier in the second PLMN.
  • the first indication information includes mapping information between the first network slice identifier and the second network slice identifier and the mapping information in the second PLMN. Mapping information between the second network slice identifier and the first target network slice group identifier.
  • the first indication information includes mapping information between the first network slice identifier and the first target network slice group identifier.
  • the method further includes: receiving second indication information from the core network device, the second indication information including a third network slice identifier and a second target network cut Mapping relationship between slice group identifiers, the second target network slice group identifier is the network slice group identifier associated with the third network slice identifier in the first PLMN; receiving the third network slice group identifier broadcast by the access network device Parameter information in a PLMN based on the identity of the second target network slice group.
  • the method further includes: when determining that the network slice identifier corresponding to the second target service is the third network slice identifier, if it is determined based on the first indication information The second target service does not have a corresponding network slice group identifier in the second PLMN, and the second target network slice group identifier is determined based on the second indication information; and the first network slice group identifier is obtained from the broadcast. Parameter information based on the second target network slice group identifier in the PLMN.
  • the method further includes: receiving third indication information, the third indication information being used to indicate the parameter information based on the network slice group identity to the terminal device.
  • the present application provides a communication method, which is applied to a communication system.
  • the method includes: the access network device receives first identification information from the terminal device, and the first identification information indicates the first public address selected by the terminal device.
  • the land mobile network PLMN when determining that the first PLMN is not the second PLMN, sends the first identification information and the second identification information to the core network equipment, and the second identification information indicates that the access network equipment is broadcasting based on network slicing.
  • the second PLMN used when setting the parameter information of the group identification accordingly, after receiving the first identification information and the second identification information, the core network device sends the first indication information to the terminal equipment, and the first indication information Indicates the mapping relationship between the first network slice identifier in the first PLMN and the first target network slice group identifier.
  • the first target network slice group identifier is the second network slice identifier in the second PLMN.
  • the associated network slice group identifier, the first network slice identifier and the second network slice identifier indicate the same network slice service; the access network device broadcasts parameters based on the network slice group identifier in the second PLMN information.
  • the first indication information includes mapping information between the first network slice identifier and the second network slice identifier and the mapping information in the second PLMN. Mapping information between the second network slice identifier and the first target network slice group identifier.
  • the first indication information includes mapping information between the first network slice identifier and the first target network slice group identifier.
  • the method further includes: the access network device sending first information to the core network device, where the first information includes each of the N public land mobile networks PLMN.
  • Network slice group identifiers of PLMNs, network slice identifiers associated with each network slice group identifier in each PLMN, the N PLMNs include the first PLMN and the second PLMN, N is positive integer.
  • the method further includes: the core network device sending second indication information to the terminal device, the second indication information including a third network slice identifier and a second target Mapping relationship between network slice group identifiers, the second target network slice group identifier is the network slice group identifier associated with the third network slice identifier in the first PLMN, and the access network device broadcasts the first network slice group identifier Parameter information based on the second target network slice group identifier in the PLMN; accordingly, when the terminal device determines that the network slice identifier corresponding to the second target service is the third network slice identifier, if it is determined based on the first indication information The second target service does not have a corresponding network slice group identifier in the second PLMN, the second target network slice group identifier is determined based on the second indication information, and the network slice group identifier based on the second target service in the first PLMN is obtained. Parameter information of the second target network slice group identifier.
  • the method further includes: the access network device sending third indication information to the terminal device, the third indication information being used to indicate to the terminal device the The identification information of the PLMN to which the parameter information based on the network slice group identification is applicable or the identification information of the PLMN to which the parameter information based on the network slice group identification is not applicable.
  • this application provides a communication device applied to core network equipment.
  • the device includes: a receiving module configured to receive first identification information and second identification information from access network equipment.
  • the first identification information The information indicates the first public land mobile network PLMN selected by the terminal equipment, the second identification information indicates the second PLMN used by the access network equipment when broadcasting parameter information based on the network slice group identification, the first PLMN and The second PLMN is different;
  • a sending module is configured to send first indication information to the terminal device, where the first indication information indicates the difference between the first network slice identifier and the first target network slice group identifier in the first PLMN.
  • the mapping relationship between, the first target network slice group identifier is the network slice group identifier associated with the second network slice identifier in the second PLMN, the first network slice identifier and the second network slice identifier
  • the identifier indicates the same network slice service.
  • the first indication information includes mapping information between the first network slice identifier and the second network slice identifier, the mapping information in the second PLMN Mapping information between the second network slice identifier and the first target network slice group identifier.
  • the first indication information includes mapping information between the first network slice identifier and the first target network slice group identifier.
  • the sending module is further configured to: send second indication information to the terminal device, where the second indication information includes a third network slice identifier and a second target network Mapping relationship between slice group identifiers, the second target network slice group identifier is the network slice group identifier associated with the third network slice identifier in the first PLMN.
  • the receiving module is further configured to: receive first information from the access network device, where the first information includes each PLMN of the N public land mobile network PLMNs.
  • the network slice group identifier, the network slice identifier associated with each network slice group identifier in each PLMN, the N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
  • the present application provides a communication device, applied to access network equipment, including: a receiving module configured to receive first identification information from a terminal equipment, where the first identification information indicates a first public information selected by the terminal equipment.
  • Land Mobile Network PLMN Land Mobile Network PLMN
  • a sending module configured to send the first identification information and the second identification information to the core network equipment, where the second identification information indicates that the access network equipment is broadcasting parameter information based on the network slice group identification.
  • the second PLMN is used when the second PLMN is different from the first PLMN; the sending module is also configured to broadcast the parameter information based on the network slice group identifier in the second PLMN.
  • the sending module is further configured to: send third indication information to the terminal device, where the third indication information is used to indicate to the terminal device the The identification information of the PLMN to which the parameter information of the network slice group identification is applicable or the identification information of the PLMN to which the parameter information of the network slice group identification is not applicable.
  • the sending module is further configured to: broadcast parameter information in the first PLMN based on a second target network slice group identifier, the second target network slice group identifier Associated with the third network slice identifier, the network slice service indicated by the third network slice identifier does not have a corresponding network slice identifier in the second PLMN.
  • the sending module is also used to: send a message to the core network device Send first information, where the first information includes a network slice group identifier of each PLMN in the N public land mobile network PLMNs, and a network slice identifier associated with each network slice group identifier in each PLMN, said N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
  • the present application provides a communication device, applied to terminal equipment, including: a receiving module configured to receive parameter information based on the network slicing group identifier in the second public land mobile network PLMN broadcast by the access network equipment;
  • the receiving module is also configured to receive first indication information from the core network device, where the first indication information indicates the mapping relationship between the first network slice identifier and the first target network slice group identifier in the first PLMN, so The first PLMN is the PLMN selected by the terminal device; the processing module is used to determine that the network slice identifier corresponding to the first target service is the first network slice identifier, and obtain the information based on the first target network slice from the broadcast. Parameter information for group identification.
  • the first indication information includes mapping information between the first network slice identifier and the second network slice identifier and the mapping information in the second PLMN. Mapping information between the second network slice identifier and the first target network slice group identifier.
  • the first indication information includes mapping information between the first network slice identifier and the first target network slice group identifier.
  • the receiving module is further configured to: receive second indication information from the core network device, where the second indication information includes a third network slice identifier and a second Mapping relationship between target network slice group identifiers, the second target network slice group identifier is the network slice group identifier associated with the third network slice identifier in the first PLMN; receiving the access network device broadcast Parameter information based on the second target network slice group identifier in the first PLMN.
  • the processing module is further configured to: when determining that the network slice identifier corresponding to the second target service is the third network slice identifier, if based on the first indication information It is determined that the second target service does not have a corresponding network slice group identifier in the second PLMN, and the second target network slice group identifier is determined based on the second indication information; and the second target network slice group identifier is obtained from the broadcast. Parameter information based on the second target network slice group identifier in the first PLMN.
  • the receiving module is further configured to: receive third indication information, the third indication information being used to indicate to the terminal device the network slice group identifier-based The identification information of the PLMN to which the parameter information is applicable or the identification information of the PLMN to which the parameter information is not applicable.
  • this application provides a communication system that includes the device described in the fifth aspect and the device described in the sixth aspect, or includes the device described in the sixth aspect and the device described in the seventh aspect, or includes The device according to the fifth aspect, the device according to the sixth aspect and the device according to the seventh aspect.
  • the present application provides a communication device, including: a memory and a processor; the memory is used to store program instructions; the processor is used to call the program instructions in the memory to execute the first aspect or the second aspect. Or the method described in the third aspect or any of the possible implementations.
  • the present application provides a computer-readable medium that stores program code for computer execution.
  • the program code includes a program code for executing the first aspect, the second aspect, the third aspect, or any of them.
  • One possible implementation of the method described is the instruction.
  • the present application provides a computer program product
  • the computer program product includes a computer program Computer program code, when the computer program code is run on a computer, causes the computer to implement the method described in the first aspect or the second aspect or any one of the possible implementations.
  • Figure 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • Figure 2 is a structural schematic diagram of a communication method provided by an embodiment of the present application.
  • Figure 3 is a structural schematic diagram of a communication method provided by another embodiment of the present application.
  • Figure 4 is a structural schematic diagram of a communication method provided by another embodiment of the present application.
  • Figure 5 is a schematic structural diagram of a communication device provided by another embodiment of the present application.
  • Figure 6 is a schematic structural diagram of a communication device provided by another embodiment of the present application.
  • Figure 7 is a schematic structural diagram of a terminal device provided by another embodiment of the present application.
  • Figure 8 is a schematic structural diagram of a communication device provided by another embodiment of the present application.
  • words such as “first” and “second” are used to distinguish the same or similar items with basically the same functions and effects.
  • the first PLMN and the second PLMN are used to distinguish different PLMNs
  • the first message and the second message are used to distinguish different messages, and their order is not limited.
  • words such as “first” and “second” do not limit the number and execution order
  • words such as “first” and “second” do not limit the number and execution order.
  • At least one means one or more
  • plural means two or more.
  • “And/or” describes the association of associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the related objects are in an “or” relationship.
  • “At least one of the following” or similar expressions thereof refers to any combination of these items, including any combination of a single item (items) or a plurality of items (items).
  • At least one of a, b and c can mean: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c, where a, b, c can be single or multiple.
  • 5G network slicing technology provides mutually isolated network environments for different application scenarios by virtualizing independent logical networks on the same network infrastructure, allowing different application scenarios to customize the network according to their own needs. Functions and features can effectively guarantee the QoS requirements of different services.
  • the goal of 5G network slicing is to organically combine terminal equipment, access network resources, core network resources, and network operation and management systems to provide different business scenarios or business types with a complete and mutually isolated network that can be independently operated and maintained. network.
  • 3rd generation partnership project, 3GPP 3rd generation partnership project
  • 3GPP third generation mobile communication project
  • 3GPP third generation mobile communication project
  • network slices should not affect each other. For example, a sudden large number of meter reading services should not affect normal mobile broadband services.
  • relatively independent management and operation and maintenance between businesses are required, and tailor-made business functions and analysis capabilities are provided. Instances of different types of services are deployed on different network slices, and different instances of the same service type can also be deployed on different network slices.
  • the network slice selection process When the core network deploys network slicing, the network slice selection process will be triggered when a user initially attaches to the network.
  • Parameters that need to be considered in the network slicing selection process include: user subscription data, local configuration information, roaming agreements, operator policies, etc. Taking the above parameters into consideration, the appropriate slicing type can be selected for the terminal device.
  • network slicing may be referred to as slice for short.
  • S-NSSAI Single network slice selection assistance information
  • S-NSSAI includes slice type/service type (SST) and slice differentiation identifier (slice differentiator, SD).
  • SST is used to describe the characteristics and service characteristics of network slices
  • SD is used to distinguish the characteristics of network slices. Different network slices of the same SST features.
  • Network slice selection assistance information is a set of S-NSSAI used to identify one or more network slices.
  • the access network device can enable the terminal device to perceive relevant parameter information for the slice through broadcast or dedicated signaling, such as cell reselection priority parameter information for the slice or random access parameter information for the slice.
  • relevant parameter information for the slice through broadcast or dedicated signaling, such as cell reselection priority parameter information for the slice or random access parameter information for the slice.
  • network slice groups are used.
  • the concept of (slice group) is to group one or more slices according to certain rules. For different groups (that is, forming a network slice group), use different identifiers (that is, the identifier of the network slice group, also called slice group ID) to distinguish.
  • one or more S-NSSAI can be mapped to a specific slice group ID, and the same slice group ID supports the same S-NSSAI in a specific area.
  • the network slice group (slice group) involved in this application can also be called other names, such as network slice access layer group (network slice AS group, NSAG).
  • network slice AS group network slice AS group
  • NSAG network slice access layer group
  • the slice group ID becomes NSAG ID.
  • a network slice group (slice group) is used as an example to illustrate the communication method provided by this application.
  • Network infrastructure includes site infrastructure such as site, computer room facilities, towers, and power supply equipment;
  • network equipment includes telecommunications network equipment such as base stations, transmission, and core networks.
  • the multiple operation core network (MOCN) mode also known as the co-carrier frequency sharing mode, is a current network sharing method.
  • MOCN multiple operation core network
  • the communication system includes a terminal device 101, an access network device 102 and a core network device 103.
  • the terminal device 101 may be a device that provides voice and/or data connectivity to users, for example, a handheld device, a vehicle-mounted device, etc. with a wireless connection function.
  • Terminal equipment can also be called user equipment (UE), access terminal (access terminal), user unit (user unit), user station (user station), mobile station (mobile station), mobile station (mobile), Remote station, remote terminal, mobile equipment, user terminal, wireless telecom equipment, user agent, user equipment or user device.
  • UE user equipment
  • access terminal access terminal
  • user unit user unit
  • user station user station
  • mobile station mobile station
  • Remote station remote terminal, mobile equipment, user terminal, wireless telecom equipment, user agent, user equipment or user device.
  • the terminal device can be a station (STA) in a wireless local area network (WLAN), a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (wireless local) loop (WLL) stations, personal digital assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, and next-generation communication systems ( For example, terminals in the fifth-generation (5G) communication network) or terminal equipment in the future evolved public land mobile network (public land mobile network, PLMN) network, etc. Among them, 5G can also be called new radio (new radio, NR).
  • 5G fifth-generation
  • NR new radio
  • the terminal device may also be a terminal device that often works on the ground, such as a vehicle-mounted device.
  • the chip deployed in the above-mentioned device, or the chip may also be called a terminal device.
  • the terms UE and terminal equipment are interchangeable, and the terms base station and access network equipment are also interchangeable.
  • the access network device 102 may be any device with wireless transceiver functions.
  • the equipment includes but is not limited to: evolved NodeB (evolved NodeB, eNB or eNodeB), wireless network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base stationcontroller, BSC) , base transceiver station (BTS), home base station (e.g., homeevolved NodeB, or home Node B, HNB), base band unit (BBU), wireless fidelity (WIFI) system Access point (AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc.
  • 5G such as NR, gNB, or transmission point (TRP or TP) in the system, one or a group (including multiple antenna panels) of antenna panels of the base station in the 5G system or future 6G system, or it can also be the antenna panel that constitutes the gNB or transmission point Network nodes, such as
  • gNB may include centralized units (CUs) and DUs. gNB also A radio unit (RU) may be included. CU implements some functions of gNB, and DU implements some functions of gNB. For example, CU implements radio resource control (RRC) and packet data convergence protocol (PDCP) layer functions, and DU implements wireless link functions of the radio link control (RLC) layer, media access control (MAC) layer and physical (PHY) layer. Since RRC layer information will eventually become physical layer information, or be transformed from physical layer information, in this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by DU , or sent by DU+CU.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • RLC radio link control
  • MAC media access control
  • PHY physical
  • the network device may be a CU node, a DU node, or a device including a CU node and a DU node.
  • the CU can be divided into network equipment in the access network (radio access network, RAN), or the CU can be divided into network equipment in the core network (corenetwork, CN), which is not limited in this application.
  • the access network equipment and the terminal equipment can communicate through the licensed spectrum, the unlicensed spectrum, or the licensed spectrum and the unlicensed spectrum at the same time.
  • the access network equipment and the terminal equipment can communicate through the spectrum below 6 gigahertz (GHZ), they can also communicate through the spectrum above 6 GHZ, and they can also use the spectrum below 6 GHZ and the spectrum above 6 GHZ at the same time. communication.
  • GHZ gigahertz
  • the embodiments of this application do not limit the spectrum resources used between the access network equipment and the terminal equipment.
  • the core network equipment 103 mainly includes user plane functions (user equipment, UPF) of the data plane and control plane functions.
  • the user plane function is mainly responsible for the forwarding of packet data packets, quality of service (QoS) control, billing information statistics and connection to external networks, etc. It includes the service gateway (LTE) of long term evolution technology (LTE). Serving gateway (SGW) and public data network gateway (PDN-GW) related functions.
  • the control plane function is mainly responsible for business process interaction, delivering data packet forwarding strategies, QoS control strategies, etc. to the user plane.
  • the network elements in the control plane functions mainly include: mobility management function (access and mobility function, AMF), session management function (SMF), policy control function (PCF), application Function (application function, AF), network exposure function (network exposure function, NEF), etc.
  • AMF mobility management function
  • SMF session management function
  • PCF policy control function
  • application Function application function, AF
  • network exposure function network exposure function, NEF
  • the AMF network element is connected to the access network equipment 102 through the NG interface, and can manage the access of terminal equipment to the core network, such as: access control of terminal equipment, mobility management of terminal equipment, and attachment and detachment of terminal equipment. , trigger the LMF network element to position the terminal device, and undertake the forwarding of positioning-related messages between the terminal device and the LMF network element, as well as the forwarding of positioning-related messages between the access network device and the LMF network element.
  • the LMF network element can locate the terminal device based on the positioning request of the AMF network element. Specifically, when locating the terminal device, the LMF network element can decide the positioning method to be used for the terminal device and the network device to position the terminal device. It should be understood that the functions of the LMF network element mentioned here can also be called the functions of the LMF. It can also be said that the LMF network element is used to implement the functions of the LMF.
  • the SMF network element is mainly responsible for managing the creation and deletion of user protocol data unit (PDU) sessions, maintaining PDU session context and user plane forwarding pipeline information.
  • PDU user protocol data unit
  • PCF policy and charging rules function
  • LTE long term evolution
  • the AF network element is mainly responsible for providing various business service functions. It can interact with the core network through the NEF network element and interact with the policy management framework for policy management.
  • NEF is used to provide frameworks, authentication and interfaces related to network capability opening, and to transfer information between 5G system network functions and other network functions.
  • the terminal device or the access network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • This hardware layer includes hardware such as central processing unit (CPU), memory management unit (MMU) and memory (also called main memory).
  • the operating system can be any one or more computer operating systems that implement business processing through processes, such as Linux operating system, Unix operating system, Android operating system, iOS operating system or windows operating system, etc.
  • This application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the present application do not specifically limit the specific structure of the execution subject of the method provided by the embodiment of the present application, as long as the program that records the code of the method provided by the embodiment of the present application can be run to provide according to the embodiment of the present application. method to communicate.
  • the execution subject of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call a program and execute the program.
  • computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, tapes, etc.), optical disks (e.g., compact discs (CD), digital versatile discs (DVD)) etc.), smart cards and flash memory devices (e.g. erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • the various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, but is not limited to, wireless channels and various other media capable of storing, containing and/or carrying instructions and/or data.
  • Figure 1 is only an example, and other network devices may also be included in the communication system, which will not be described again here.
  • enhanced mobile broadband eMBB
  • massive machine type communication MMTC
  • ultra-reliable and low latency communications URLLC
  • eMBB enhanced mobile broadband
  • MMTC massive machine type communication
  • URLLC ultra-reliable and low latency communications
  • each network slice is identified using a single network slice selection assistance information (S-NSSAI).
  • S-NSSAI network slice selection assistance information
  • network slicing is also referred to as slice.
  • the access network device 102 in Figure 1 needs to use the network slice group (slice group) identifier in a certain PLMN as a reference to broadcast or use dedicated signaling. Make the terminal device perceive the parameter information based on the slice group identifier, or it is also called using the network slice group (slice group) identifier in a certain PLMN to broadcast or use dedicated signaling to make the terminal device perceive the parameter information based on the slice group identifier. .
  • the target network slice group identifier corresponding to the current service can be determined based on the mapping relationship between the network slice identifier and the network slice group identifier, so as to obtain the broadcast information or
  • the parameter information based on the target network slicing group identifier is obtained from the dedicated information, and some operations are performed based on the parameter information based on the target network slicing group identifier.
  • the network slice group identifier indicates a group of network slices (called a network slice group), and each network slice in the group has its own network slice identifier and also has the same network slice group identifier.
  • cell reselection needs to be performed. process to obtain better quality communities for residence.
  • the terminal device When the terminal device performs the cell reselection process, it needs to use the cell reselection priority parameter information based on the network slicing group identifier. Therefore, in this scenario, the base station will broadcast or use dedicated signaling based on the network slice group identifier in the reference PLMN so that the terminal device can perceive cell reselection priority parameter information based on different network slice group identifiers.
  • the terminal device When the terminal device needs to initiate a cell reselection process due to mobility, the terminal device will first determine the network slice identifier corresponding to the service that may be initiated, and then determine the possible initiated service based on the mapping relationship between the network slice identifier and the network slice group identifier.
  • the target network slicing group ID corresponding to the service and then obtain the cell reselection priority parameter information related to the target network slicing group ID from the broadcast information or dedicated information, where the cell reselection priority related to the target network slicing group ID
  • the parameter information indicates the frequency priority that supports the target network slicing group identity.
  • the terminal device can determine the best cell reselection priority from the serving cell and neighboring cells based on the cell reselection priority parameter information related to the target network slicing group identity. Stay in a good community.
  • random access parameter information based on different network slicing group identifiers. For example, you need to use random access channel partitioning (also called RACH Partition) based on the network slicing group identity and random access priority parameters based on the network slicing group identity (also called RA-Prioritization).
  • RACH Partition random access channel partitioning
  • RA-Prioritization random access priority parameters
  • the base station will broadcast or use dedicated signaling based on the network slice group identifier in the reference PLMN to make the terminal device perceive random access based on different network slice group identifiers. Enter parameter information.
  • the terminal device When the terminal device needs to initiate random access to a certain slice service, the terminal device will first determine the network slice identifier corresponding to the current service, and then determine the current service based on the mapping relationship between the network slice identifier and the network slice group identifier. The corresponding target network slicing group ID is obtained, and the random access parameter information corresponding to the target network slicing group ID is obtained from the broadcast information or dedicated information. Finally, the terminal device can perform execution based on the random access parameter information of the target network slicing group ID. Random access process.
  • the above-mentioned access network device 102 broadcasts or uses dedicated signaling to cause the terminal device to perceive different
  • the network slice group identifier in a PLMN is used as a reference.
  • the communication system uses a multi-operator core network (multiple operation core network, MOCN) mode, that is, certain cells covered by the above-mentioned access network equipment 102 (such as cell 1 and cell 2 in Figure 1 , cell 3 and cell 4) can be used by multiple operator networks, then the network slice identifier and network slice group identifier in the PLMN corresponding to each operator network may be different, and the access network device 102 Broadcasting can only be carried out using the network slicing group identifier in a certain PLMN as a reference.
  • MOCN multiple operation core network
  • the terminal equipment that selects other PLMNs after determining the target network slicing group identifier corresponding to the service, it may result in broadcast messages or dedicated
  • the target parameter information obtained in signaling is incorrect information. Further, this causes the terminal device that selects other PLMNs to fail when executing the corresponding process based on the target parameter information.
  • the description will now be given by taking two operator networks sharing a cell under the access network device 102 as an example.
  • the network now includes 4 network slices, which are assumed to be called the first network slice, the second network slice, the third network slice, and the fourth network slice.
  • slice1 is the identifier of the first network slice
  • slice2 is the identifier of the second network slice
  • slice3 is the identifier of the third network slice
  • slice4 is the identifier of the fourth network slice.
  • the terminal device will first determine the network slice identifier as slice3, and then determine The corresponding network slice group identifier is slice group1. Then obtain the parameter information related to slice group1 from the broadcast information.
  • the terminal device that selects the second PLMN is based on the relevant parameter information obtained by slice group1. It is actually wrong information, making it impossible to perform the corresponding process.
  • embodiments of the present application provide a communication method and a communication device.
  • the terminal device that selects the first PLMN can obtain correct parameter information from the broadcast parameter information based on the network slice group identifier in the second PLMN, so that the corresponding process can be executed.
  • Figure 2 is a schematic flowchart of a communication method provided by an embodiment of the present application. As shown in Figure 2, the method may include: S212, S214, S216, S218 and S220.
  • the terminal device sends first identification information, where the first identification information indicates the first PLMN selected by the terminal device; accordingly, the access network device receives the first identification information.
  • the terminal device refers to a terminal device that needs to obtain parameter information based on the network slicing group identifier from the access network device.
  • the terminal device includes a terminal device that needs to obtain cell reselection priority parameter information based on the network slice group identifier broadcast by the access network device.
  • the terminal device includes a terminal device that needs to obtain random access parameter information based on the network slice group identifier broadcast by the access network device.
  • each terminal device in the communication system needs to select a PLMN to implement communication with other devices.
  • the PLMN selected by the terminal device is called the first PLMN.
  • the identification of the first PLMN is called first identification information.
  • the first identification information when the terminal device initiates initial access, can be carried in the RRC Setup Complete (RRCSetupComplete) signaling and sent to the access network device.
  • the access network device The network device obtains the first identification information from RRCSetupComplete signaling.
  • the first identification information may be a first PLMN identification.
  • the terminal device using the first PLMN can also be considered as using the PLMN configured by the first operator.
  • the access network device sends the first identification information and the second identification information to the core network device.
  • the core network device receives the first identification information and the second identification information; the second identification information indicates the second PLMN used by the access network device when broadcasting the parameter information based on the network slice group identification, and the second PLMN is the same as the second identification information.
  • the first PLMN is different.
  • the access network device determines whether the first PLMN is the second PLMN, and when the first PLMN is not the second PLMN, sends the first identification information and the second identification information to the core network device.
  • the core network device receives the first identification information. and second identification information, the second identification information indicating the second PLMN that the access network device refers to when broadcasting parameter information based on the network slice group identification.
  • the access network equipment usually uses the network slicing group identifier in one PLMN as a reference to broadcast messages based on different network slicing groups. Identified parameter information.
  • the PLMN that the access network device refers to when broadcasting parameter information based on different network slice group identifiers is called the second PLMN.
  • the first PLMN is also called the slave PLMN or the serving PLMN
  • the second PLMN is called the master PLMN.
  • the network slice group identifier corresponds to (or is also called associated with) a group of network slices (called a network slice group).
  • a network slice group Each network slice in the group is distinguished by the network slice identifier and each network slice in the group has the same
  • the network slice group ID For example, the network slice group identifier configured by an operator is as follows: the network slice group identifier is slice group1, which is associated with the network slice with the network slice identifier slice1, the network slice identifier with the network slice identifier slice2, and the network slice identifier with the network slice identifier slice3.
  • the embodiment of the present application does not limit the specific content of the parameter information based on the network slice group identifier.
  • the parameter information based on the network slicing group identifier can be cell reselection priority parameter information based on the network slicing group identifier, or it can be random access parameter information based on the network slicing group identifier, and its specific content can be determined according to the application scenario. .
  • S216 The core network device sends the first instruction information to the terminal device.
  • the terminal device receives the first indication information, which indicates the mapping relationship between the first network slice identifier and the first target network slice group identifier in the first PLMN, and the first target network slice group identifier is the first network slice group identifier. 2.
  • the access network device can know the relevant information of the network slicing group in the PLMN configured by each of the multiple operators.
  • the access network device usually needs to send the relevant information of the network slicing group of each PLMN in multiple PLMNs to the core network device, so that the core network device can know the relevant information of the network slicing group in each PLMN. information.
  • the method in this embodiment also includes S210: the access network device sends first information to the core network device, where the first information includes the network of each PLMN of the N public land mobile network PLMNs.
  • the N PLMNs include the first PLMN and the second PLMN, and N is a positive integer. That is to say, the relevant information of the network slice group in the PLMN configured by each operator may include: the network slice identifier configured for each network slice service, the network slice group identifier associated with each network slice identifier, etc.
  • the relevant information of the configured network slice group is: the network slice identifier of the first network slice service is slice1, the network slice identifier of the second network slice service is slice2, and the network slice of the third network slice service
  • the network slice identified as slice3 and the fourth network slice service are identified as slice4, where slice1 and slice2 are associated with the network slice group identifier slice group1, and slice3 and slice4 are associated with the network slice group identifier slice group2.
  • the relevant information of the configured network slice group is: the network slice identifier of the first network slice service is slice1, the network slice identifier of the second network slice service is slice2, and the network slice identifier of the third network slice service is slice2.
  • the slice identifier is slice3 and the network slice identifier of the fourth network slice service is slice4, where slice1 and slice2 are associated with the network slice group identifier slice group2, and slice3 and slice4 are associated with the network slice group identifier slice group1. It should be noted that this example is only an example used to illustrate that network slice group identifiers configured by different operators are different, and does not constitute a limitation of this application.
  • different operators may configure different network slice identifiers for the same network slice service.
  • the relevant information of the configured network slice group is: the network slice identifier of the first network slice service is slice1, the network slice identifier of the second network slice service is slice2, and the network slice of the third network slice service
  • the network slice identified as slice3 and the fourth network slice service are identified as slice4, where slice1 and slice2 are associated with the network slice group identifier slice group1, and slice3 and slice4 are associated with the network slice group identifier slice group2.
  • the relevant information of the configured network slice group is: the network slice identifier of the first network slice service is slice3, the network slice identifier of the second network slice service is slice4, and the network slice identifier of the third network slice service is slice4.
  • the slice identifier is slice1 and the network slice identifier of the fourth network slice service is slice2.
  • slice3 and slice4 are associated with the network slice group identifier slice group1
  • slice1 and slice2 are associated with the network slice group identifier slice group2. It should be noted here that this example is only an example used to illustrate that network slice identifiers configured by different operators are different, and does not constitute a limitation of this application.
  • the access network device When multiple PLMNs share a certain cell of the access network device, the access network device usually broadcasts the network slice group based on the network slice group identifier.
  • parameter information refers to one PLMN (i.e., the primary PLMN) among multiple PLMNs.
  • the parameter information based on the network slice group identifier obtained from the broadcast by the terminal device in the cell that selects the slave PLMN may be incorrect. , further causing the terminal device to be unable to perform corresponding operations.
  • terminal equipment 1 If the two PLMN networks corresponding to the two operators share cell A, and the relevant information based on the network slicing group used by the access network equipment when broadcasting is the first operator referenced, at this time, for the small For terminal equipment 1 that selects the second operator's PLMN in area A, if terminal equipment 1 wants to perform cell reselection, terminal equipment 1 will first determine that the service that may be initiated is the first network slicing service, and the first network slicing service After the network slice identifier corresponding to the network slicing service is slice1 and the corresponding network slice group identifier is slice group2, terminal device 1 will obtain the cell reselection priority parameter information based on slice group2 from the broadcast message.
  • the cell reselection priority parameter information based on slice group2 in the broadcast message refers to the network slice group identifier configured by the first operator, and the slice3 and slice included in slice group2 configured by the first operator slice4 indicates the third network slice service and the fourth network slice service respectively, but does not indicate the first network slice service.
  • the cell reselection behavior of the terminal device may have the following two situations: 1) The terminal device may be based on this non-corresponding cell.
  • the reselection priority parameter information is used to perform cell reselection, as long as the frequency point terminal device indicated in the cell reselection priority parameter information supports it.
  • the problem with the terminal device performing cell reselection based on the cell reselection priority parameter information is: Reselection can be successful but is not ideal behavior for the terminal. 2) Terminal reselection fails due to mismatch in network indication information.
  • the core network device can learn the relevant information of the network slicing group configured by each operator based on the first information sent by the access network device. Therefore, for the core network device, when receiving the first identification information and the second identification information sent by the access network device, it can be determined whether the network slice service indicated by any network slice identification in the first PLMN is in the second PLMN. There is also a network slice identifier in the PLMN, and if a certain network slice service (also called the first network slice service in this application) is in the second PLMN, it has a network slice identifier (also called the second network slice identifier in this application). When called the first target network slice group ID).
  • the core network device determines that the first network slice service indicated by the first network slice identifier in the first PLMN has a corresponding second network slice identifier in the second PLMN, it sends a message to the terminal device.
  • First indication information the first indication information is used to indicate the mapping relationship between the first network slice identifier and the first target network slice group identifier in the first PLMN, and the first target network slice group identifier is the second PLMN The network slice group identifier associated with the second network slice identifier in .
  • the first indication information sent by the core network device includes mapping information between the first network slice identifier and the second network slice identifier and the second network slice identifier in the second PLMN. Mapping information with the first target network slice group identifier.
  • the terminal device that selects the first PLMN wants to initiate an application (APP) service
  • the APP can be obtained through the network slice selection policy (NSSP)
  • the slice identifier corresponding to the service is the first network slice identifier (for example, slice1) in the first PLMN, and then according to the first indication information, the correspondence between slice1 in the first PLMN and the second network slice identifier (for example, slice2) in the second PLMN is obtained.
  • the association between slice2 in the second PLMN and the first target network slice group identifier (for example, slice group2) in the second PLMN that is, it can be obtained that slice1 in the first PLMN corresponds to slice group2 in the second PLMN.
  • the first indication information sent by the core network device may directly include mapping information between the first network slice identifier and the first target network slice group identifier.
  • the slice identifier corresponding to the APP service can be obtained through NSSP as the first network slice identifier (for example, slice1) in the first PLMN, and then Then, it is directly obtained according to the first indication information that slice1 in the first PLMN corresponds to slice group2 in the second PLMN.
  • the difference between the above-mentioned second implementation and the first implementation is that: in the second implementation, the core network device is based on the difference between the network slice identifier in the first PLMN and the network slice identifier in the second PLMN.
  • the mapping relationship and the identification information of the network slice group in the second PLMN first complete the derivation of the mapping relationship between the network slice identifier in the first PLMN and the network slice group identifier in the second PLMN, and then send it to the terminal device.
  • the access network device broadcasts the parameter information based on the network slicing group identifier in the second PLMN.
  • the terminal device receives the parameter information based on the network slicing group identifier in the second PLMN broadcast by the access network device.
  • the parameter information based on the network slice group identifier broadcast by the access network device is the reference second PLMN.
  • the embodiment of the present application does not limit the order of S216 and S218. That is, in the embodiment of the present application, there is no restriction on the specific time relationship of whether the access network device sends the first identification information and the second identification information to the core network device first, or broadcasts it first. For example, it can be sent to the core network device first. The first identification information and the second identification information are then broadcast, or they may be broadcast first and then the first identification information and the second identification information are sent to the core network device, or they may be performed simultaneously.
  • the terminal device When determining that the network slice identifier corresponding to the first target service is the first network slice identifier, the terminal device obtains parameter information based on the first target network slice group identifier from the broadcast.
  • the terminal device when the terminal device determines that the network slice identifier corresponding to the first target service is the first network slice identifier, because the core network device sends to the terminal device a message indicating that the first network slice identifier in the first PLMN is the same as the first network slice identifier.
  • one type of first indication information sent by the core network device is: directly including mapping information between the first network slice identifier and the first target network slice group identifier.
  • the process for the terminal device to obtain the parameter information based on the first target network slice group identifier from the broadcast is: the terminal device can first obtain the network slice identifier corresponding to the first target service through NSSP. a network slice identifier, and then directly obtain the first network slice identifier corresponding to the first target network slice group identifier in the second PLMN according to the first indication information, and obtain parameter information based on the first target network slice group identifier from the broadcast.
  • Another type of first indication information sent by the core network device is: including mapping information between the first network slice identifier and the second network slice identifier and the second network slice identifier in the second PLMN. Mapping information with the first target network slice group identifier.
  • the process for the terminal device to obtain the parameter information based on the first target network slice group identifier from the broadcast is: the terminal device can first obtain the network slice identifier corresponding to the first target service through NSSP.
  • a network slice identifier and then according to the first instruction information, first obtain the first network slice identifier corresponding to the second network slice identifier in the second PLMN, and then obtain the first network slice identifier based on the second network slice identifier and the first target network slice group identifier.
  • the mapping information obtains the first target network slice group identifier, and obtains parameter information based on the first target network slice group identifier from the broadcast.
  • this embodiment of the present application does not limit the specific content of the terminal device obtaining parameter information based on the network slice group identifier from the broadcast.
  • the terminal device needs to obtain cell reselection priority parameter information based on the network slice group identifier. More specifically, in this application, if it is a cell reselection scenario, the access network device can broadcast the cell reselection priority parameter information based on the network slice group identifier for cell reselection, and select the terminal device of the first PLMN.
  • the non-access stratum (NAS) can first obtain the first target network slice group identifier corresponding to the first target service in the second PLMN based on the first information, and then the NAS of the terminal device can obtain the first target network slice group identifier.
  • network slice group The identification is sent to the access stratum (AS) of the terminal device and the cell reselection process is performed.
  • the terminal device needs to obtain random access parameter information based on the network slice group identifier. More specifically, in this application, if it is a random access scenario, the access network device can broadcast random access parameter information based on the network slice group identifier for random access, and the NAS of the terminal device that selects the first PLMN can First, obtain the first target network slicing group identifier corresponding to the first target service in the second PLMN based on the first information. Then the NAS of the terminal device can send the first target network slicing group identifier to the AS of the terminal device and perform randomization. Access process.
  • the NAS of the terminal device may be used to perform the process of obtaining the first target network slice group identifier corresponding to the first network slice identifier according to the first instruction information, or it may be the NAS of the terminal device.
  • the first instruction information is first sent to the AS of the terminal device, and then the AS of the terminal device performs a process of obtaining the first target network slice group identifier corresponding to the first network slice identifier according to the first instruction information.
  • the method of this embodiment can enable the terminal device belonging to the first PLMN to perform a cell reselection process based on the network slice group identifier based on the broadcast information of the second PLMN within the shared network range. or random access process.
  • the terminal device may also be the terminal device that selects the second PLMN.
  • the communication method in this application may also include: when the access network device determines that the first PLMN is the second PLMN, sending the first identification information to the core network device; the core network device receives After the first identification information, the core network device sends the network slice group identification information in the second PLMN and the network slice identification associated with each network slice group identification in the second PLMN to the terminal device; accordingly, the terminal device receives the core After the network device sends the network slice group identifier information in the second PLMN and the network slice identifier associated with each network slice group identifier in the second PLMN, the terminal device can directly broadcast the network slice group identifier from the access network device. Get the target parameter information from the parameter information to perform the corresponding operation.
  • the core network device can determine that the first network slice identifier in the terminal device that selects the first PLMN and the second network slice identifier in the second PLMN indicate the same network In the scenario of slicing services, how does the terminal device that selects the first PLMN obtain the correct parameter information based on the network slicing group identifier from the broadcast message.
  • the core network device may not be found in the second PLMN.
  • the same network slice identifier as the network slice service indicated by the third network slice identifier also referred to as the fourth network slice identifier in this application.
  • the target network associated with the fourth network slice identifier cannot be found in the second PLMN.
  • Slice group identifier also referred to as the third target network slice group identifier in this application
  • the core network device finds the fourth network slice identifier in the second PLMN but the second PLMN does not match the fourth network slice identifier.
  • both of these situations refer to the scenario where the third network slice identifier in the first PLMN cannot find the corresponding third target network slice group in the second PLMN. It can also be understood that in this scenario, for the terminal device that selects the first PLMN, it is still unable to perform the corresponding process based on the parameter information based on the network slice group identifier in the second PLMN broadcast by the access network device.
  • this application combines Figure 3 to illustrate a method for a terminal that selects the first PLMN in the MOCN scenario.
  • the third network slice identifier in the device When the core network device cannot find the network slice group identifier in the second PLMN, how can the terminal device obtain the parameter information based on the network slice group identifier to execute the corresponding process.
  • the communication method in this implementation includes: S310, S320, S330, S340, S350 and S360.
  • the access network device sends the first information to the core network device.
  • the first information includes the network slicing group identifier of each PLMN in the N public land mobile network PLMN and the network slicing group identifier of each PLMN.
  • the N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
  • the terminal device sends first identification information, where the first identification information indicates the first PLMN selected by the terminal device; accordingly, the access network device receives the first identification information.
  • the access network device determines that the first PLMN is not the second PLMN, the access network device sends the first identification information and the second identification information to the core network device.
  • the core network device receives the first identification information and the second identification information.
  • Information; the second identification information indicates the second PLMN used by the access network device when broadcasting parameter information based on the network slice group identification.
  • the core network device sends the first indication information and the second indication information to the terminal device.
  • the terminal device receives the first indication information and the second indication information.
  • the first indication information indicates that the first network slice identifier in the first PLMN is the same as the first indication information.
  • the mapping relationship between the first target network slice group identifier, the second indication information includes the mapping relationship between the third network slice identifier and the second target network slice group identifier, the first target network slice group identifier is in the second PLMN and The network slice group identifier associated with the second network slice identifier.
  • the first network slice identifier and the second network slice identifier indicate the same network slice service.
  • the second target network slice group identifier is the network slice group identifier associated with the third network slice identifier in the first PLMN. Network slice group ID.
  • the core network device determines that the network slice service indicated by the third network slice identifier in the first PLMN does not have a corresponding network slice group identifier in the second PLMN, in order to enable the terminal device to clearly identify the network slice group identifier in the first PLMN,
  • the third network slice identifier is associated with the second target network slice group identifier.
  • the core network device may send an indication message (also called the second indication information in this embodiment) to the terminal device to indicate the third network to the terminal device.
  • the slice identifier has a mapping relationship with the second target network slice group identifier in the first PLMN.
  • the terminal device if a certain application (APP) service initiated by the terminal device of the first PLMN is selected, the corresponding network is obtained through the network slice selection policy (NSSP).
  • the slice identifier is the third network slice identifier (for example, slice3)
  • the terminal device will The indication information obtains that slice3 in the first PLMN corresponds to the second target network slice group identifier (for example, slice group2) in the first PLMN.
  • the access network device broadcasts parameter information based on the network slice group identifier in the second PLMN and/or parameter information based on the second target network slice group identifier in the first PLMN.
  • the network slice service (for example, called the second target service) indicated by the third network slice identifier in the first PLMN cannot find the corresponding network slice identifier and network slice group identifier in the second PLMN, that is, Second item
  • the target service is only supported by the first PLMN.
  • the access The network device also broadcasts parameter information based on the second target network slice group identification in the first PLMN.
  • the third The second target network slice group identifier in one PLMN may be the same as a certain network slice group identifier in the second PLMN, or the neighboring cells are not shared by all operators.
  • the broadcast based on the second PLMN When the parameter information of the network slice group identifier in the first PLMN is based on the parameter information of the second target network slice group identifier in the first PLMN, indication information (also referred to as third indication information or valid indication in this application) is sent to the terminal device. ), so that the terminal device can distinguish which of the broadcast network slice group identification information is applicable to the first PLMN and which is applicable to the second PLMN.
  • the third indication information may be a PLMN identity/PLMN identity information list broadcast by PLMN in SIB1 (for example, plmn-IdentityInfoList standard cell) or a non-public network identity information list (for example, npn-IdentityInfoList standard cell). ) in the index/TAC and TAI to which different PLMNs in the serving cell belong to indicate whether the parameter information based on the network slice group identification is applicable or not applicable to the PLMN.
  • SIB1 for example, plmn-IdentityInfoList standard cell
  • npn-IdentityInfoList standard cell for example, npn-IdentityInfoList standard cell
  • S360 The terminal device obtains parameter information represented by the target network slice group from the broadcast.
  • the terminal device determines that the network slice identifier corresponding to the first target service is the first network slice identifier
  • the terminal device obtains parameter information based on the first target network slice group identifier in the second PLMN from the broadcast; or, when the terminal device When it is determined that the network slice identifier corresponding to the second target service is the third network slice identifier, parameter information based on the second target network slice group identifier in the first PLMN is obtained from the broadcast.
  • the terminal device when the terminal device determines that the network slice identifier corresponding to the second target service is the third network slice identifier, if the second PLMN does not have the same second target service as the first PLMN, The network slicing group identifier has the same network slicing group identifier. At this time, the terminal device will obtain parameter information based on the second target network slicing group identifier in the first PLMN from the broadcast.
  • the terminal device when the terminal device determines that the network slice identifier corresponding to the second target service is the third network slice identifier, if the second target network slice group identifier in the first PLMN exists in the second PLMN The same network slice group identifier, at this time, the terminal device can obtain parameter information based on the second target network slice group identifier in the first PLMN from the broadcast based on the valid indication.
  • the communication method provided in this embodiment can be applied to scenarios where the network slice identifier supported by the slave PLMN cannot find the corresponding network slice identifier information and network slice group identifier information in the primary PLMN, or in scenarios where neighboring cells are not shared by all operators.
  • the terminal device belonging to the slave PLMN can be configured to obtain the parameter information of the network slice group identifier corresponding to the network slice group identifier only supported by the slave PLMN within the scope of the shared network based on the broadcast information of the master PLMN and/or the slave PLMN. /or instructions from the access network device (optionally) to perform corresponding operations based on the network slice group identification.
  • a terminal device that selects the first PLMN when a terminal device that selects the first PLMN initiates a certain service, after determining the network slice identifier corresponding to the certain service, it first determines whether the second PLMN includes the service based on the first indication information.
  • the network slice group identifier corresponding to the certain service (the first target network slice group identifier). If the corresponding first target network slice group identifier is found based on the first indication information, the network slice group identifier based on the first target network slice group identifier in the second PLMN is obtained from the broadcast.
  • a target network slice Parameter information for group identification for group identification.
  • the network slice group identifier (the second target network slice group identifier) of the certain service in the first PLMN is determined based on the second indication information, and the network slice group identifier based on the first target network slice group identifier is obtained from the broadcast. Parameter information of the second target network slice group identifier in the PLMN.
  • the access network device may also broadcast on demand or send parameter information based on the target network slicing group identifier to the terminal device in a unicast manner.
  • the communication method of this implementation includes: S410, S420, S430, S440, S450, S460 and S470.
  • the terminal device needs to perform cell reselection based on the parameter information of the network slicing group identifier or perform random access based on the parameter information of the network slicing group identifier as an example.
  • the access network device sends the first information to the core network device.
  • the first information includes the network slicing group identifier of each PLMN in the N public land mobile network PLMN and the network slicing group identifier of each PLMN.
  • the N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
  • S420 When the terminal device initiates random access or a connected state, it sends first identification information and the type of the requested system message, where the first identification information indicates the first PLMN selected by the terminal device.
  • the first identification information and the type of the requested system message may be carried through message 1 (MSG1)/message 3 (MSG3)/dedicated SIB request (DedicateSIBRequest).
  • the type of system message request may be to request the existing system information block 1 (SIB1); or it may be to request the existing system information block 16 (SIB16); or it may be Request a new SIB.
  • SIB1 system information block 1
  • SIB16 existing system information block 16
  • the access network device determines, based on the identification information of each network slice group in the slave PLMN and the network slice identifier associated with each network slice group identifier, according to the requested system
  • the type of message generated is based on the parameter information identified from the network slice group of the PLMN.
  • the access network device can obtain the identification information from each network slice group in the PLMN and the information related to each network slice group. Identify the associated network slice identifier, and generate parameter information based on the network slice group identifier of the first PLMN without changing the signaling design of SIB1 or SIB16.
  • the access network device may specifically generate a new SIB for the slave PLMN.
  • the access network device may specifically generate a new SIB for the slave PLMN.
  • the access network device can generate parameter information based on the network slice group identification of other slave PLMNs without changing the signaling design of the new SIB; or, if the terminal device of other slave PLMNs also requests a new SIB, Then the access network equipment can generate a new SIB for different slave PLMNs respectively.
  • Each SIB uses its own PLMN identity/PLMN identity information list broadcast by PLMN in SIB1 (such as plmn-IdentityInfoList standard information element) or non-public network identity.
  • PLMN identity/PLMN identity information list broadcast by PLMN in SIB1 (such as plmn-IdentityInfoList standard information element) or non-public network identity.
  • the index in the information list (such as the npn-IdentityInfoList standard information element)/the TAC and TAI to which different PLMNs in the serving cell belong are distinguished.
  • the access network device sends parameter information based on the network slice group identifier in the first PLMN to the terminal device.
  • this embodiment explains how the access network device sends the network information based on the network in the first PLMN to the terminal device. There are no restrictions on how the parameter information of the slice group identifier can be implemented.
  • the access network device may decide whether to unicast or broadcast based on the number of requested system message types sent by the terminal device that selects the first PLMN. For example, when the access network device receives a total of more than L (L is When a positive integer) requests the parameter information of the network slice group identifier in the first PLMN, the parameter information based on the network slice group identifier in the first PLMN may be provided to the terminal device in a broadcast manner.
  • L is When a positive integer
  • the access network device sends the first identification information to the core network device; accordingly, the core network device receives the first identification information.
  • the core network device sends each network slice group identifier in the first PLMN and the network slice identifier information associated with each network slice group identifier to the terminal device.
  • the terminal device performs cell reselection or random access based on the broadcast and each network slice group identifier in the first PLMN and the network slice identifier information associated with each network slice group identifier.
  • S440 and S450 are executed in no particular order.
  • Figure 5 is a schematic structural diagram of a communication device provided by an embodiment of the present application. Specifically, as shown in Figure 5, the device includes: a receiving module 501 and a sending module 502.
  • the communication device can be applied to core network equipment.
  • the device 500 includes: a receiving module 501, configured to receive first identification information and second identification information from the access network equipment.
  • An identification information indicates the first public land mobile network PLMN selected by the terminal equipment, the second identification information indicates the second PLMN used by the access network equipment when broadcasting parameter information based on the network slice group identification, the first The PLMN is different from the second PLMN;
  • the sending module 502 is configured to send first indication information to the terminal device, the first indication information indicating the first network slice identifier and the first target network slice in the first PLMN
  • the mapping relationship between group identifiers, the first target network slice group identifier is the network slice group identifier associated with the second network slice identifier in the second PLMN, the first network slice identifier and the third network slice identifier
  • the two network slice identifiers indicate the same network slice service.
  • the receiving module 501 may be configured to perform the step of receiving the first identification information and the second identification information sent by the access network device in the method described in FIG. 2 .
  • the receiving module 501 is used to perform S214.
  • the sending module 502 may be configured to perform the step of sending the first indication information to the terminal device in the method described in FIG. 2 .
  • the sending module 502 is used to perform S216.
  • the first indication information includes mapping information between the first network slice identifier and the second network slice identifier and the second network slice identifier in the second PLMN. Mapping information with the first target network slice group identifier.
  • the first indication information includes mapping information between the first network slice identifier and the first target network slice group identifier.
  • the sending module is further configured to: send second indication information to the terminal device, where the second indication information includes a link between a third network slice identifier and a second target network slice group identifier. mapping relationship, so The second target network slice group identifier is a network slice group identifier associated with the third network slice identifier in the first PLMN.
  • the receiving module 501 is further configured to: receive first information from the access network device, where the first information includes the network slice group of each PLMN of the N public land mobile network PLMNs.
  • Identity, network slice identifier associated with each network slice group identifier in each PLMN, the N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
  • the communication device 500 can be applied to access network equipment.
  • the receiving module 501 is used to receive the first identification information from the terminal equipment, and the first identification information indicates the first public land mobile network PLMN selected by the terminal equipment; the sending module 502 is used to send the first identification information to the core network equipment.
  • First identification information and second identification information the second identification information indicates the second PLMN used by the access network device when broadcasting parameter information based on the network slice group identification, the second PLMN is the same as the first The PLMN is different; the sending module 502 is also configured to broadcast parameter information based on the network slice group identifier in the second PLMN.
  • the receiving module 501 may be configured to perform the step of receiving the first identification information from the terminal device in the method described in FIG. 2 .
  • the receiving module 501 is used to perform S212.
  • the sending module 502 may be configured to perform the step of sending the first identification information and the second identification information to the core network device in the method described in FIG. 2 .
  • the sending module 502 is used to perform S214.
  • the sending module 502 is further configured to: send third indication information to the terminal device, where the third indication information is used to indicate to the terminal device the network slicing group identification-based The identification information of the PLMN to which the parameter information is applicable or the identification information of the PLMN to which the parameter information is not applicable.
  • the sending module 502 is further configured to: broadcast parameter information in the first PLMN based on a second target network slice group identifier, where the second target network slice group identifier is the same as the third network slice group identifier.
  • the second target network slice group identifier is the same as the third network slice group identifier.
  • Slice identifier association the network slice service indicated by the third network slice identifier does not have a corresponding network slice identifier in the second PLMN.
  • the sending module 502 is further configured to: send first information to the core network device, where the first information includes the network slice group identifier of each PLMN of the N public land mobile network PLMNs, A network slice identifier associated with each network slice group identifier in each PLMN.
  • the N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
  • Figure 6 is a schematic structural diagram of a communication device provided by an embodiment of the present application. Specifically, as shown in Figure 6, the device 600 includes: a receiving module 601 and a processing module 602. The device 600 is applied to terminal equipment.
  • the receiving module 601 is used to receive the parameter information based on the network slice group identifier in the second public land mobile network PLMN broadcast by the access network device; the receiving module 601 is also used to receive the first parameter information from the core network device.
  • Instruction information indicates the mapping relationship between the first network slice identifier and the first target network slice group identifier in the first PLMN, and the first PLMN is the PLMN selected by the terminal device; the processing module 602 uses When it is determined that the network slice identifier corresponding to the first target service is the first network slice identifier, parameter information based on the first target network slice group identifier is obtained from the broadcast.
  • the receiving module 601 may be configured to perform the step of receiving the first indication information from the core network device in the method described in FIG. 2 .
  • the receiving module 601 is used to perform S216.
  • the processing module 602 may be configured to perform the step of obtaining parameter information based on the first target network slice group identity from the broadcast in the method described in FIG. 2 .
  • the processing module 602 is used to perform S220.
  • the first indication information includes mapping information between the first network slice identifier and the second network slice identifier and the second network slice identifier in the second PLMN. Mapping information with the first target network slice group identifier.
  • the first indication information includes mapping information between the first network slice identifier and the first target network slice group identifier.
  • the receiving module 601 is further configured to receive second indication information from the core network device, where the second indication information includes a third network slice identifier and a second target network slice group. Mapping relationship between identifiers, the second target network slice group identifier is the network slice group identifier associated with the third network slice identifier in the first PLMN; receiving the first PLMN broadcast by the access network device The parameter information based on the second target network slice group identifier in .
  • the processing module 602 is further configured to: when determining that the network slice identifier corresponding to the second target service is the third network slice identifier, if it is determined based on the first indication information that the The second target service does not have a corresponding network slice group identifier in the second PLMN.
  • the second target network slice group identifier is determined based on the second indication information; and the second target network slice group identifier is obtained from the broadcast. parameter information based on the second target network slice group identifier.
  • the receiving module 601 is further configured to: receive third indication information, the third indication information being used to indicate to the terminal device that the parameter information based on the network slice group identity is applicable.
  • FIG. 7 is a schematic structural diagram of a terminal device 700 provided by this application.
  • the terminal device 700 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the terminal device 700 can be applied in the system as shown in Figure 1 to perform the functions of the terminal device in the above method embodiment.
  • the processor is mainly used to process communication protocols and communication data, and to control the entire terminal device, execute software programs, and process data of the software programs. For example, it is used to control the terminal device to perform the actions described in the above method embodiments.
  • Memory is mainly used to store software programs and data.
  • the control circuit is mainly used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals.
  • the control circuit and the antenna together can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and then sends the radio frequency signal out in the form of electromagnetic waves through the antenna.
  • 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.
  • the processor converts the baseband signal into data and processes the data.
  • FIG. 7 only shows one memory and processor. In an actual terminal device, there may be multiple processors and memories.
  • the memory may also be called a storage medium or a storage device, which is not limited in the embodiments of the present application.
  • the processor may include a baseband processor and a central processor.
  • the baseband processor is mainly used to process communication protocols and communication data.
  • the central processor is mainly used to control the entire terminal device. Execute software programs and process data from software programs.
  • the processor in Figure 7 integrates the functions of the baseband processor and the central processor.
  • the baseband processor and the central processor can also be independent processors and are interconnected through technologies such as buses.
  • the terminal device may include multiple baseband processors to adapt to different network standards, the terminal device may include multiple central processors to enhance its processing capabilities, and various components of the terminal device may be connected through various buses.
  • the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the function of processing communication protocols and communication data can be built into the processor, or can be stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.
  • the antenna and the control circuit with the transceiver function can be regarded as the transceiver unit 701 of the terminal device 700
  • the processor with the processing function can be regarded as the processing unit 702 of the terminal device 700
  • the terminal device 700 includes a transceiver unit 701 and a processing unit 702 .
  • the transceiver unit may also be called a transceiver, a transceiver, a transceiver device, etc.
  • the devices used to implement the receiving function in the transceiving unit 701 can be regarded as receiving units
  • the devices used in the transceiving unit 701 used to implement the transmitting function can be regarded as sending units.
  • the transceiving unit 701 includes a receiving unit and a transmitting unit.
  • the receiving unit may also be called a receiver, a receiver, a receiving circuit, etc.
  • the sending unit may be called a transmitter, a transmitter, a transmitting circuit, etc.
  • the terminal device 700 shown in Figure 7 can implement various processes involving the terminal device in the method embodiments shown in Figures 2 to 4.
  • the operations and/or functions of each module in the terminal device 700 are respectively to implement the corresponding processes in the above method embodiment.
  • Figure 8 is a schematic structural diagram of a communication device provided by another embodiment of the present application.
  • the device shown in Figure 8 can be used to perform the method described in any of the aforementioned embodiments.
  • the device 800 in this embodiment includes: a memory 801 , a processor 802 , a communication interface 803 and a bus 804 .
  • the memory 801, the processor 802, and the communication interface 803 implement communication connections between each other through the bus 804.
  • the memory 801 may be a read only memory (ROM), a static storage device, a dynamic storage device or a random access memory (RAM).
  • the memory 801 can store programs. When the program stored in the memory 801 is executed by the processor 802, the processor 802 is used to execute various steps of the methods shown in Figures 2 to 4.
  • the processor 802 may be a general central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits for executing related programs to Implement the methods shown in Figures 2 to 4 of this application.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • the processor 802 may also be an integrated circuit chip with signal processing capabilities. During the implementation process, each step of the method shown in FIGS. 2 to 4 in the embodiment of the present application can be completed by instructions in the form of hardware integrated logic circuits or software in the processor 802 .
  • the above-mentioned processor 802 can also be a general-purpose processor, a digital signal processor (digital signal processing, DSP), an application-specific integrated circuit (ASIC), an off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, Discrete gate or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA field programmable gate array
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • the steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or It is executed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in this field.
  • the storage medium is located in the memory 801, and the processor 802 reads the information in the memory 801, and combines its hardware to complete the functions required to be performed by the units included in the device of the present application. For example, each step of the embodiment shown in Figures 2 to 4 can be executed. /Function.
  • the communication interface 803 may use, but is not limited to, a transceiver device such as a transceiver to implement communication between the device 800 and other devices or communication networks.
  • Bus 804 may include a path that carries information between various components of device 800 (eg, memory 801, processor 802, communication interface 803).
  • the device 800 shown in the embodiment of the present application may be an electronic device, or may also be a chip configured in the electronic device.
  • the above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination.
  • the above-described embodiments may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmit to another website, computer, server or data center through wired (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that contains one or more sets of available media.
  • the usable media may be magnetic media (eg, floppy disk, hard disk, tape), optical media (eg, DVD), or semiconductor media.
  • the semiconductor medium may be a solid state drive.
  • the size of the sequence numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk and other various media that can store program codes.

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Abstract

A communication method and a communication apparatus. In the method, when an access network device determines that a first PLMN, which is selected by a terminal device, is not a second PLMN, which is used when the access network device broadcasts parameter information based on a network slice group identifier, the access network device sends to a core network device first identification information indicating the first PLMN and second identification information indicating the second PLMN; the core network device receives the first identification information and the second identification information; and if it is determined that the network slice service indicated by a first network slice identifier in the first PLMN is the same as a network slice service indicated by a second network slice identifier in the second PLMN, a mapping relationship between the first network slice identifier in the first PLMN and a first target network slice group identifier is sent to the terminal device, such that the terminal device can acquire, from the broadcasted parameter information based on a network slice group identifier in the second PLMN, parameter information related to the first target network slice group identifier.

Description

通信方法与通信装置Communication method and communication device
本申请要求于2022年07月05日提交中国国家知识产权局、申请号为202210784091.7、申请名称为“通信方法与通信装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on July 5, 2022, with application number 202210784091.7 and application name "Communication Method and Communication Device", the entire content of which is incorporated into this application by reference. .
技术领域Technical field
本申请涉及通信技术领域，尤其涉及一种通信方法与通信装置。The present application relates to the field of communication technology, and in particular, to a communication method and communication device.
背景技术Background technique
第五代(the fifth generation，5G)移动通信技术通过端到端的网络切片(network slicing)为用户提供定制化的网络服务，通过对网络资源的灵活分配、按需组网，5G在同一套物理设施上虚拟出多个具有不同特点且相互隔离的逻辑子网，来针对性地为用户提供服务。The fifth generation (5G) mobile communication technology provides users with customized network services through end-to-end network slicing. Through flexible allocation of network resources and on-demand networking, 5G operates on the same set of physical Multiple logical subnets with different characteristics and mutual isolation are virtualized on the facility to provide targeted services to users.
通常，在一些场景中，当终端设备确定出当前业务对应的目标网络切片组标识后，可以从基站广播的基于网络切片组(例如称为slice group)标识的参数信息中获取到基于目标网络切片组标识的参数信息，然后基于目标网络切片组标识的参数信息执行一些操作。其中，网络切片组标识指示了一组网络切片(称为网络切片组)，该组中每个网络切片具有自己的网络切片标识且还具有相同的网络切片组标识。示例性地，基站发送基于网络切片组标识的小区重选优先级参数信息或基于网络切片组标识的随机接入参数信息，以使得终端设备可以基于网络切片组标识的小区重选优先级参数信息执行小区重选流程、或基于网络切片组标识的随机接入参数信息执行随机接入流程。Generally, in some scenarios, after the terminal device determines the target network slice group identifier corresponding to the current service, it can obtain the target network slice based on the parameter information based on the network slice group (for example, called slice group) identifier broadcast by the base station. parameter information of the group ID, and then perform some operations based on the parameter information of the target network slice group ID. Wherein, the network slice group identifier indicates a group of network slices (called a network slice group), and each network slice in the group has its own network slice identifier and also has the same network slice group identifier. Exemplarily, the base station sends cell reselection priority parameter information based on the network slicing group identifier or random access parameter information based on the network slicing group identifier, so that the terminal device can reselect the cell priority parameter information based on the network slicing group identifier. Execute a cell reselection process, or execute a random access process based on the random access parameter information of the network slice group identifier.
但是，基站在广播基于网络切片组标识的参数信息时通常是以一个公共陆地移动网(public land mobile network，PLMN)中的网络切片组标识信息作为参考的，而在多运营商核心网(multiple operation core network，MOCN)模式下，由于各个运营商网络对应的各个PLMN中的网络切片组的标识或者网络切片的标识可能是不同的，从而导致使用其他PLMN的终端设备从广播中获取的参数信息可能是有误的，从而导致终端设备无法执行相应的流程。However, when the base station broadcasts parameter information based on the network slice group identification, it usually uses the network slice group identification information in a public land mobile network (public land mobile network, PLMN) as a reference. However, in a multi-operator core network (multiple operator core network) In operation core network (MOCN) mode, since the identifiers of network slice groups or network slices in each PLMN corresponding to each operator's network may be different, terminal devices using other PLMNs may obtain parameter information from broadcasts. It may be incorrect, causing the terminal device to be unable to execute the corresponding process.
发明内容Contents of the invention
本申请提供了一种通信方法与通信装置，可以在MOCN模式下，实现选择第一PLMN的终端设备从广播的第二PLMN中的基于网络切片组标识的参数信息中获取到正确的参数信息，以可以执行相应的流程。This application provides a communication method and communication device, which can enable a terminal device that selects a first PLMN to obtain correct parameter information from the broadcast parameter information based on the network slice group identifier in the second PLMN in MOCN mode. to execute the corresponding process.
第一方面，本申请提供一种通信方法，应用于核心网设备，所述方法包括：接收来自接入网设备的第一标识信息和第二标识信息，所述第一标识信息指示终端设备选择的第一公共陆地移动网PLMN，所述第二标识信息指示所述接入网设备在广播基于网络切片组标识的参数信息时使用的第二PLMN，所述第一PLMN与所述第二PLMN 不同；向所述终端设备发送第一指示信息，所述第一指示信息指示所述第一PLMN中第一网络切片标识与第一目标网络切片组标识之间的映射关系，所述第一目标网络切片组标识为所述第二PLMN中与所述第二网络切片标识关联的网络切片组标识，所述第一网络切片标识与所述第二网络切片标识指示相同的网络切片业务。In a first aspect, this application provides a communication method, applied to core network equipment. The method includes: receiving first identification information and second identification information from an access network equipment, where the first identification information instructs the terminal equipment to select The first public land mobile network PLMN, the second identification information indicates the second PLMN used by the access network device when broadcasting parameter information based on the network slice group identification, the first PLMN and the second PLMN Different; sending first indication information to the terminal device, the first indication information indicating the mapping relationship between the first network slice identifier and the first target network slice group identifier in the first PLMN, the first target The network slice group identifier is a network slice group identifier associated with the second network slice identifier in the second PLMN, and the first network slice identifier and the second network slice identifier indicate the same network slice service.
本实施例中，第一PLMN是指终端设备选择的公共陆地移动网，第二PLMN是指接入网设备在广播基于网络切片组标识的参数信息时使用的公共陆地移动网或者参考的公共陆地移动网。In this embodiment, the first PLMN refers to the public land mobile network selected by the terminal device, and the second PLMN refers to the public land mobile network or reference public land mobile network used by the access network device when broadcasting parameter information based on the network slice group identifier. mobile network.
本实施例中，第一标识信息指示第一PLMN、第二标识信息指示第二PLMN，且第一PLMN和第二PLMN是不同的PLMN。In this embodiment, the first identification information indicates the first PLMN, the second identification information indicates the second PLMN, and the first PLMN and the second PLMN are different PLMNs.
本实施例中，当核心网设备接收到第一标识信息和第二标识信息后，对于第一PLMN中的第一网络切片标识，若核心网设备确定出该第一网络切片标识指示的网络切片业务在第二PLMN中也存在网络切片标识(本申请中也称为第二网络切片标识)，即第一PLMN中的第一网络切片标识和第二PLMN中的第二网络切片标识指示相同的网络切片业务时，由于核心网设备侧可以获知每个PLMN中的网络切片组标识以及与每个PLMN中的每个网络切片组标识关联的网络切片标识，因此，核心网设备可以进一步确定出与第二PLMN中的第二网络切片标识关联的网络切片组标识(本申请中也称为第一目标网络切片组标识)。In this embodiment, after the core network device receives the first identification information and the second identification information, for the first network slice identifier in the first PLMN, if the core network device determines the network slice indicated by the first network slice identifier, The service also has a network slice identifier in the second PLMN (also referred to as the second network slice identifier in this application), that is, the first network slice identifier in the first PLMN and the second network slice identifier in the second PLMN indicate the same When providing network slicing services, since the core network device side can learn the network slicing group identifier in each PLMN and the network slicing identifier associated with each network slicing group identifier in each PLMN, the core network device can further determine the network slicing group identifier associated with the network slicing group identifier. The network slice group identifier associated with the second network slice identifier in the second PLMN (also referred to as the first target network slice group identifier in this application).
本实施例中，核心网设备在确定出与第二PLMN中的第二网络切片标识关联的网络切片组标识时，会向终端设备发送指示第一PLMN中第一网络切片标识与第一目标网络切片组标识之间的映射关系的信息(本申请中也称为第一指示信息)。可以理解的是，在选择第一PLMN的终端设备接收到第一指示信息指示的映射关系后，如果确定出当前的业务对应的网络切片的标识为第一网络切片标识，那么就可以基于该映射关系确定出第一目标网络切片组标识，这样，当接入网设备在广播第二PLMN中的基于网络切片组标识的参数信息时，该终端设备就可以从广播中获取第一目标网络切片组标识的参数信息，以保证获取的参数信息的正确性，从而执行相应的流程。In this embodiment, when the core network device determines the network slice group identifier associated with the second network slice identifier in the second PLMN, it will send to the terminal device an indication of the first network slice identifier in the first PLMN and the first target network. Information on the mapping relationship between slice group identifiers (also referred to as first indication information in this application). It can be understood that, after the terminal device that selects the first PLMN receives the mapping relationship indicated by the first indication information, if it is determined that the identifier of the network slice corresponding to the current service is the first network slice identifier, then it can be based on the mapping The relationship determines the first target network slice group identifier, so that when the access network device broadcasts the parameter information based on the network slice group identifier in the second PLMN, the terminal device can obtain the first target network slice group from the broadcast. Identified parameter information to ensure the accuracy of the obtained parameter information, so as to execute the corresponding process.
结合第一方面，在一种可能的实现方式中，第一指示信息包括第一网络切片标识与第二网络切片标识之间的映射信息和第二PLMN中第二网络切片标识与第一目标网络切片组标识之间的映射信息。In conjunction with the first aspect, in a possible implementation, the first indication information includes mapping information between the first network slice identifier and the second network slice identifier and the second network slice identifier in the second PLMN and the first target network Mapping information between slice group identifiers.
该实现方式中，核心网设备发送的第一指示信息中包括第一网络切片标识与第二网络切片标识之间的映射信息以及第二PLMN中第二网络切片标识与第一目标网络切片组标识之间的映射信息。可以理解的是，在该实现方式中，当终端设备确定出当前的业务对应的网络切片的标识为第一网络切片标识，那么就可以基于该映射关系先确定出第二网络切片标识，然后再基于第二网络切片标识与第一目标网络切片组标识之间的映射信息确定出所述第一目标网络切片组标识，以实现从接入网设备广播的第二PLMN中的基于网络切片组标识的参数信息中获取第一目标网络切片组标识的参数信息。In this implementation, the first instruction information sent by the core network device includes mapping information between the first network slice identifier and the second network slice identifier, as well as the second network slice identifier and the first target network slice group identifier in the second PLMN. mapping information between. It can be understood that in this implementation, when the terminal device determines that the identifier of the network slice corresponding to the current service is the first network slice identifier, it can first determine the second network slice identifier based on the mapping relationship, and then The first target network slice group identifier is determined based on the mapping information between the second network slice identifier and the first target network slice group identifier, so as to implement network slice group identifier-based broadcasting in the second PLMN from the access network device. Obtain the parameter information of the first target network slice group identifier from the parameter information.
结合第一方面，在一种可能的实现方式中，所述第一指示信息包括所述第一网络切片标识与所述第一目标网络切片组标识之间的映射信息。With reference to the first aspect, in a possible implementation, the first indication information includes mapping information between the first network slice identifier and the first target network slice group identifier.
该实现方式中，核心网设备发送的第一指示信息直接包括第一网络切片标识与所 述第一目标网络切片组标识之间的映射信息。可以理解的是，在该实现方式中，当终端设备确定出当前的业务对应的网络切片的标识为第一网络切片标识，那么就可以直接基于该映射关系确定出所述第一目标网络切片组标识，以实现从接入网设备广播的第二PLMN中的基于网络切片组标识的参数信息中获取第一目标网络切片组标识的参数信息。In this implementation, the first indication information sent by the core network device directly includes the first network slice identifier and the Mapping information between the first target network slice group identifiers. It can be understood that, in this implementation manner, when the terminal device determines that the identifier of the network slice corresponding to the current service is the first network slice identifier, the first target network slice group can be determined directly based on the mapping relationship. The identifier is used to obtain the parameter information of the first target network slice group identifier from the parameter information based on the network slice group identifier in the second PLMN broadcast by the access network device.
结合第一方面，在一种可能的实现方式中，所述方法还包括：向所述终端设备发送第二指示信息，所述第二指示信息包括第三网络切片标识与第二目标网络切片组标识之间的映射关系，所述第二目标网络切片组标识为所述第一PLMN中与所述第三网络切片标识关联的网络切片组标识。With reference to the first aspect, in a possible implementation, the method further includes: sending second indication information to the terminal device, the second indication information including a third network slice identifier and a second target network slice group Mapping relationship between identifiers, the second target network slice group identifier is the network slice group identifier associated with the third network slice identifier in the first PLMN.
可以理解的是，还可能存在某个网络切片业务在第一PLMN中存在网络切片标识信息(本申请中也称为第三网络切片标识)但在第二PLMN中不存在网络切片标识信息，在这种情况下，核心网设备就无法从第二PLMN中找到与第三网络切片标识对应的网络切片组标识信息。鉴于此，该实现方式中，当核心网设备无法从第二PLMN中找到与第三网络切片标识对应的网络切片组标识信息时，向终端设备发送指示第三网络切片标识与第二目标网络切片组标识之间的映射关系的指示信息(本申请中也称为第二指示信息)，以使得终端设备可以获知当前的第三网络切片标识在选择的第一PLMN中的网络切片组标识。It can be understood that there may also be a certain network slice service that has network slice identification information in the first PLMN (also referred to as the third network slice identification in this application) but does not exist in the second PLMN. In this case, the core network device cannot find the network slice group identification information corresponding to the third network slice identification from the second PLMN. In view of this, in this implementation, when the core network device cannot find the network slice group identification information corresponding to the third network slice identifier from the second PLMN, it sends an instruction indicating the third network slice identifier and the second target network slice to the terminal device. Indication information of the mapping relationship between group identifiers (also referred to as second indication information in this application), so that the terminal device can learn the network slice group identifier of the current third network slice identifier in the selected first PLMN.
结合第一方面，在一种可能的实现方式中，所述方法还包括：接收来自接入网设备的第一信息，所述第一信息包括N个公共陆地移动网PLMN中每个PLMN的网络切片组标识、与所述每个PLMN中的每个网络切片组标识关联的网络切片标识，所述N个PLMN中包括所述第一PLMN和所述第二PLMN，N为正整数。In conjunction with the first aspect, in a possible implementation, the method further includes: receiving first information from the access network device, where the first information includes the network of each PLMN of the N public land mobile networks PLMN. Slice group identifier, network slice identifier associated with each network slice group identifier in each PLMN, the N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
第二方面，本申请提供一种通信方法，应用于接入网设备，包括：接收来自终端设备的第一标识信息，所述第一标识信息指示终端设备选择的第一公共陆地移动网PLMN；向核心网设备发送所述第一标识信息和第二标识信息，所述第二标识信息指示所述接入网设备在广播基于网络切片组标识的参数信息时使用的第二PLMN，所述第二PLMN与所述第一PLMN不同；广播所述第二PLMN中的基于网络切片组标识的参数信息。In a second aspect, this application provides a communication method, applied to access network equipment, including: receiving first identification information from a terminal equipment, where the first identification information indicates the first public land mobile network PLMN selected by the terminal equipment; Send the first identification information and the second identification information to the core network device. The second identification information indicates the second PLMN used by the access network device when broadcasting parameter information based on the network slice group identification. The second PLMN is different from the first PLMN; the parameter information based on the network slice group identifier in the second PLMN is broadcast.
本实施例中，第一标识信息指示第一PLMN、第二标识信息指示第二PLMN，且第一PLMN和第二PLMN是不同的PLMN。In this embodiment, the first identification information indicates the first PLMN, the second identification information indicates the second PLMN, and the first PLMN and the second PLMN are different PLMNs.
本实施例中，当接入网设备接收到终端设备第一标识信息后，如果确定出该第一标识信息指示的第一PLMN与第二PLMN不同，其中，该第二PLMN是接入网设备在广播基于网络切片组标识的参数信息时参考的PLMN，则向核心网设备发送指示第一PLMN的第一标识信息和指示第二PLMN的标识信息，以使得核心网设备可以确定第一PLMN中的某个网络切片标识指示的网络切片业务在第二PLMN中对应的网络切片组标识信息。In this embodiment, after the access network device receives the first identification information of the terminal device, if it is determined that the first PLMN indicated by the first identification information is different from the second PLMN, where the second PLMN is the access network device The PLMN referenced when broadcasting parameter information based on the network slice group identity, then sends the first identification information indicating the first PLMN and the identification information indicating the second PLMN to the core network device, so that the core network device can determine the first PLMN. The network slice group identification information corresponding to the network slice service indicated by a certain network slice identifier in the second PLMN.
结合第二方面，在一种可能的实现方式中，所述方法还包括：向所述终端设备发送第三指示信息，所述第三指示信息用于向所述终端设备指示所述基于网络切片组标识的参数信息适用的PLMN的标识信息或者不适用的PLMN的标识信息。With reference to the second aspect, in a possible implementation, the method further includes: sending third indication information to the terminal device, the third indication information being used to indicate to the terminal device the network slice-based The identification information of the PLMN to which the parameter information of the group identification is applicable or the identification information of the PLMN to which the parameter information of the group identification is not applicable.
本实施例中，当接入网设备在广播第二PLMN中的基于网络切片组标识的参数信 息时，还向终端设备发送用于指示网络切片组标识的参数信息适用的PLMN的标识信息或者不适用的PLMN的标识信息。In this embodiment, when the access network device broadcasts the parameter information based on the network slice group identifier in the second PLMN, When receiving the information, the terminal device is also sent to the terminal device the identification information of the PLMN to which the parameter information of the network slice group identification is applicable or the identification information of the PLMN to which the parameter information of the network slice group identification is not applicable.
结合第二方面，在一种可能的实现方式中，所述方法还包括：广播所述第一PLMN中基于第二目标网络切片组标识的参数信息，所述第二目标网络切片组标识与第三网络切片标识关联，所述第三网络切片标识指示的网络切片业务在所述第二PLMN中没有对应的网络切片标识。With reference to the second aspect, in a possible implementation, the method further includes: broadcasting parameter information in the first PLMN based on a second target network slice group identifier, the second target network slice group identifier being the same as the first target network slice group identifier. Three network slice identifiers are associated, and the network slice service indicated by the third network slice identifier does not have a corresponding network slice identifier in the second PLMN.
可以理解的是，当某个网络切片业务(本申请中也称为第二网络切片业务)在第一PLMN中存在网络切片标识信息(本申请中也称为第三网络切片标识)以及存在与第三网络切片标识关联的网络切片组标识(本申请中也称为第二目标网络切片组标识)、但该网络切片业务在第二PLMN中不存在网络切片标识信息时，选择第一PLMN的终端设备将从广播的第二PLMN中的基于网络切片组标识的参数信息中获取不到参数信息，鉴于此，本实施例中，接入网设备在广播时还广播第一PLMN中基于第二目标网络切片组标识的参数信息，以使得选择第一PLMN的终端设备在第二网络切片业务时，可以从广播中获取到参数信息，以执行相应的流程。It can be understood that when a certain network slice service (also called a second network slice service in this application) has network slice identification information (also called a third network slice identification in this application) in the first PLMN and there is When the network slice group identifier associated with the third network slice identifier (also called the second target network slice group identifier in this application), but the network slice service does not have network slice identifier information in the second PLMN, select the first PLMN The terminal device will not be able to obtain parameter information from the parameter information based on the network slice group identifier in the broadcast second PLMN. In view of this, in this embodiment, the access network device also broadcasts the parameter information based on the second PLMN in the first PLMN when broadcasting. Parameter information of the target network slicing group identification, so that the terminal device that selects the first PLMN can obtain the parameter information from the broadcast when performing the second network slicing service to execute the corresponding process.
结合第二方面，在一种可能的实现方式中，所述方法还包括：向核心网设备发送第一信息，所述第一信息包括N个公共陆地移动网PLMN中每个PLMN的网络切片组标识、与所述每个PLMN中的每个网络切片组标识关联的网络切片标识，所述N个PLMN中包括所述第一PLMN和所述第二PLMN，N为正整数。With reference to the second aspect, in a possible implementation, the method further includes: sending first information to the core network device, where the first information includes a network slice group of each PLMN of the N public land mobile network PLMNs. Identity, network slice identifier associated with each network slice group identifier in each PLMN, the N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
第三方面，本申请提供一种通信方法，应用于终端设备，包括：接收接入网设备广播的第二公共陆地移动网PLMN中的基于网络切片组标识的参数信息；接收来自核心网设备的第一指示信息，所述第一指示信息指示第一PLMN中第一网络切片标识与第一目标网络切片组标识之间的映射关系，所述第一PLMN为终端设备选择的PLMN；确定第一目标业务对应的网络切片标识为所述第一网络切片标识时，从所述广播中获取基于所述第一目标网络切片组标识的参数信息。In a third aspect, this application provides a communication method, applied to terminal equipment, including: receiving parameter information based on network slicing group identification in the second public land mobile network PLMN broadcast by the access network equipment; receiving parameter information from the core network equipment. First indication information, the first indication information indicates the mapping relationship between the first network slice identifier and the first target network slice group identifier in the first PLMN, which is the PLMN selected by the terminal device; determine the first When the network slice identifier corresponding to the target service is the first network slice identifier, parameter information based on the first target network slice group identifier is obtained from the broadcast.
本申请提供的通信方法，终端设备可以接收核心网设备发送的指示终端设备选择的第一PLMN中第一网络切片标识与第二PLMN中的第一目标网络切片组标识之间的映射关系，其中，第二PLMN为接入网设备广播第二PLMN中的基于网络切片组标识的参数信息时参考的PLMN；然后，对于终端设备，若确定出当前业务在第一PLMN中对应的网络切片标识为第一网络切片标识时，就可以先根据核心网设备指示的映射关系确定出当前业务在第二PLMN中的网络切片组标识为第一目标网络切片组标识，然后就可以从接入网设备广播的第二PLMN中的基于网络切片组标识的参数信息中获取到基于第一目标网络切片组标识的参数信息。In the communication method provided by this application, the terminal device can receive the mapping relationship between the first network slice identifier in the first PLMN selected by the terminal device and the first target network slice group identifier in the second PLMN sent by the core network device, where , the second PLMN is the PLMN that the access network device refers to when broadcasting parameter information based on the network slice group identifier in the second PLMN; then, for the terminal device, if it is determined that the network slice identifier corresponding to the current service in the first PLMN is When identifying the first network slice, the network slice group identifier of the current service in the second PLMN can be determined as the first target network slice group identifier based on the mapping relationship indicated by the core network device, and then the network slice group identifier can be broadcast from the access network device. The parameter information based on the first target network slice group identifier is obtained from the parameter information based on the network slice group identifier in the second PLMN.
结合第三方面，在一种可能的实现方式中，所述第一指示信息包括所述第一网络切片标识与所述第二网络切片标识之间的映射信息和所述第二PLMN中所述第二网络切片标识与所述第一目标网络切片组标识之间的映射信息。Combined with the third aspect, in a possible implementation, the first indication information includes mapping information between the first network slice identifier and the second network slice identifier and the mapping information in the second PLMN. Mapping information between the second network slice identifier and the first target network slice group identifier.
结合第三方面，在一种可能的实现方式中，所述第一指示信息包括所述第一网络切片标识与所述第一目标网络切片组标识之间的映射信息。With reference to the third aspect, in a possible implementation manner, the first indication information includes mapping information between the first network slice identifier and the first target network slice group identifier.
结合第三方面，在一种可能的实现方式中，所述方法还包括：接收来自所述核心网设备的第二指示信息，所述第二指示信息包括第三网络切片标识与第二目标网络切 片组标识之间的映射关系，所述第二目标网络切片组标识为所述第一PLMN中与所述第三网络切片标识关联的网络切片组标识；接收所述接入网设备广播的第一PLMN中的基于第二目标网络切片组标识的参数信息。Combined with the third aspect, in a possible implementation, the method further includes: receiving second indication information from the core network device, the second indication information including a third network slice identifier and a second target network cut Mapping relationship between slice group identifiers, the second target network slice group identifier is the network slice group identifier associated with the third network slice identifier in the first PLMN; receiving the third network slice group identifier broadcast by the access network device Parameter information in a PLMN based on the identity of the second target network slice group.
结合第三方面，在一种可能的实现方式中，所述方法还包括：确定第二目标业务对应的网络切片标识为所述第三网络切片标识时，若基于所述第一指示信息确定出所述第二目标业务在所述第二PLMN中不存在对应的网络切片组标识，基于所述第二指示信息确定所述第二目标网络切片组标识；从所述广播中获取所述第一PLMN中的基于第二目标网络切片组标识的参数信息。Combined with the third aspect, in a possible implementation, the method further includes: when determining that the network slice identifier corresponding to the second target service is the third network slice identifier, if it is determined based on the first indication information The second target service does not have a corresponding network slice group identifier in the second PLMN, and the second target network slice group identifier is determined based on the second indication information; and the first network slice group identifier is obtained from the broadcast. Parameter information based on the second target network slice group identifier in the PLMN.
结合第三方面，在一种可能的实现方式中，所述方法还包括：接收第三指示信息，所述第三指示信息用于向所述终端设备指示所述基于网络切片组标识的参数信息适用的PLMN的标识信息或者不适用的PLMN的标识信息。With reference to the third aspect, in a possible implementation, the method further includes: receiving third indication information, the third indication information being used to indicate the parameter information based on the network slice group identity to the terminal device. The identification information of the applicable PLMN or the identification information of the inapplicable PLMN.
第四方面，本申请提供一种通信方法，应用于通信***，所述方法包括：接入网设备接收来自终端设备的第一标识信息，所述第一标识信息指示终端设备选择的第一公共陆地移动网PLMN，在判断第一PLMN不为第二PLMN时，向核心网设备发送第一标识信息和第二标识信息，所述第二标识信息指示所述接入网设备在广播基于网络切片组标识的参数信息时使用的第二PLMN；相应的，核心网设备接收到所述第一标识信息和第二标识信息后，向所述终端设备发送第一指示信息，所述第一指示信息指示所述第一PLMN中第一网络切片标识与第一目标网络切片组标识之间的映射关系，所述第一目标网络切片组标识为所述第二PLMN中与所述第二网络切片标识关联的网络切片组标识，所述第一网络切片标识与所述第二网络切片标识指示相同的网络切片业务；所述接入网设备广播所述第二PLMN中的基于网络切片组标识的参数信息。In a fourth aspect, the present application provides a communication method, which is applied to a communication system. The method includes: the access network device receives first identification information from the terminal device, and the first identification information indicates the first public address selected by the terminal device. The land mobile network PLMN, when determining that the first PLMN is not the second PLMN, sends the first identification information and the second identification information to the core network equipment, and the second identification information indicates that the access network equipment is broadcasting based on network slicing. The second PLMN used when setting the parameter information of the group identification; accordingly, after receiving the first identification information and the second identification information, the core network device sends the first indication information to the terminal equipment, and the first indication information Indicates the mapping relationship between the first network slice identifier in the first PLMN and the first target network slice group identifier. The first target network slice group identifier is the second network slice identifier in the second PLMN. The associated network slice group identifier, the first network slice identifier and the second network slice identifier indicate the same network slice service; the access network device broadcasts parameters based on the network slice group identifier in the second PLMN information.
结合第四方面，在一种可能的实现方式中，所述第一指示信息包括所述第一网络切片标识与所述第二网络切片标识之间的映射信息和所述第二PLMN中所述第二网络切片标识与所述第一目标网络切片组标识之间的映射信息。With reference to the fourth aspect, in a possible implementation, the first indication information includes mapping information between the first network slice identifier and the second network slice identifier and the mapping information in the second PLMN. Mapping information between the second network slice identifier and the first target network slice group identifier.
结合第四方面，在一种可能的实现方式中，所述第一指示信息包括所述第一网络切片标识与所述第一目标网络切片组标识之间的映射信息。With reference to the fourth aspect, in a possible implementation manner, the first indication information includes mapping information between the first network slice identifier and the first target network slice group identifier.
结合第四方面，在一种可能的实现方式中，所述方法还包括：所述接入网设备向核心网设备发送第一信息，所述第一信息包括N个公共陆地移动网PLMN中每个PLMN的网络切片组标识、与所述每个PLMN中的每个网络切片组标识关联的网络切片标识，所述N个PLMN中包括所述第一PLMN和所述第二PLMN，N为正整数。With reference to the fourth aspect, in a possible implementation, the method further includes: the access network device sending first information to the core network device, where the first information includes each of the N public land mobile networks PLMN. Network slice group identifiers of PLMNs, network slice identifiers associated with each network slice group identifier in each PLMN, the N PLMNs include the first PLMN and the second PLMN, N is positive integer.
结合第四方面，在一种可能的实现方式中，所述方法还包括：核心网设备向所述终端设备发送第二指示信息，所述第二指示信息包括第三网络切片标识与第二目标网络切片组标识之间的映射关系，所述第二目标网络切片组标识为所述第一PLMN中与所述第三网络切片标识关联的网络切片组标识，所述接入网设备广播第一PLMN中的基于第二目标网络切片组标识的参数信息；相应的，终端设备确定第二目标业务对应的网络切片标识为所述第三网络切片标识时，若基于所述第一指示信息确定出所述第二目标业务在所述第二PLMN中不存在对应的网络切片组标识，基于所述第二指示信息确定所述第二目标网络切片组标识、并获取所述第一PLMN中的基于第二目标网络切片组标识的参数信息。 With reference to the fourth aspect, in a possible implementation, the method further includes: the core network device sending second indication information to the terminal device, the second indication information including a third network slice identifier and a second target Mapping relationship between network slice group identifiers, the second target network slice group identifier is the network slice group identifier associated with the third network slice identifier in the first PLMN, and the access network device broadcasts the first network slice group identifier Parameter information based on the second target network slice group identifier in the PLMN; accordingly, when the terminal device determines that the network slice identifier corresponding to the second target service is the third network slice identifier, if it is determined based on the first indication information The second target service does not have a corresponding network slice group identifier in the second PLMN, the second target network slice group identifier is determined based on the second indication information, and the network slice group identifier based on the second target service in the first PLMN is obtained. Parameter information of the second target network slice group identifier.
结合第四方面，在一种可能的实现方式中，所述方法还包括：接入网设备向所述终端设备发送第三指示信息，所述第三指示信息用于向所述终端设备指示所述基于网络切片组标识的参数信息适用的PLMN的标识信息或者不适用的PLMN的标识信息。With reference to the fourth aspect, in a possible implementation, the method further includes: the access network device sending third indication information to the terminal device, the third indication information being used to indicate to the terminal device the The identification information of the PLMN to which the parameter information based on the network slice group identification is applicable or the identification information of the PLMN to which the parameter information based on the network slice group identification is not applicable.
第五方面，本申请提供一种通信装置，应用于核心网设备，所述装置包括：接收模块，用于接收来自接入网设备的第一标识信息和第二标识信息，所述第一标识信息指示终端设备选择的第一公共陆地移动网PLMN，所述第二标识信息指示所述接入网设备在广播基于网络切片组标识的参数信息时使用的第二PLMN，所述第一PLMN与所述第二PLMN不同；发送模块，用于向所述终端设备发送第一指示信息，所述第一指示信息指示所述第一PLMN中第一网络切片标识与第一目标网络切片组标识之间的映射关系，所述第一目标网络切片组标识为所述第二PLMN中与所述第二网络切片标识关联的网络切片组标识，所述第一网络切片标识与所述第二网络切片标识指示相同的网络切片业务。In a fifth aspect, this application provides a communication device applied to core network equipment. The device includes: a receiving module configured to receive first identification information and second identification information from access network equipment. The first identification information The information indicates the first public land mobile network PLMN selected by the terminal equipment, the second identification information indicates the second PLMN used by the access network equipment when broadcasting parameter information based on the network slice group identification, the first PLMN and The second PLMN is different; a sending module is configured to send first indication information to the terminal device, where the first indication information indicates the difference between the first network slice identifier and the first target network slice group identifier in the first PLMN. The mapping relationship between, the first target network slice group identifier is the network slice group identifier associated with the second network slice identifier in the second PLMN, the first network slice identifier and the second network slice identifier The identifier indicates the same network slice service.
结合第五方面，在一种可能的实现方式中和所述第一指示信息包括所述第一网络切片标识与所述第二网络切片标识之间的映射信息、所述第二PLMN中所述第二网络切片标识与所述第一目标网络切片组标识之间的映射信息。With reference to the fifth aspect, in a possible implementation manner, the first indication information includes mapping information between the first network slice identifier and the second network slice identifier, the mapping information in the second PLMN Mapping information between the second network slice identifier and the first target network slice group identifier.
结合第五方面，在一种可能的实现方式中，所述第一指示信息包括所述第一网络切片标识与所述第一目标网络切片组标识之间的映射信息。With reference to the fifth aspect, in a possible implementation, the first indication information includes mapping information between the first network slice identifier and the first target network slice group identifier.
结合第五方面，在一种可能的实现方式中，所述发送模块还用于：向所述终端设备发送第二指示信息，所述第二指示信息包括第三网络切片标识与第二目标网络切片组标识之间的映射关系，所述第二目标网络切片组标识为所述第一PLMN中与所述第三网络切片标识关联的网络切片组标识。In conjunction with the fifth aspect, in a possible implementation, the sending module is further configured to: send second indication information to the terminal device, where the second indication information includes a third network slice identifier and a second target network Mapping relationship between slice group identifiers, the second target network slice group identifier is the network slice group identifier associated with the third network slice identifier in the first PLMN.
结合第五方面，在一种可能的实现方式中，所述接收模块还用于：接收来自接入网设备的第一信息，所述第一信息包括N个公共陆地移动网PLMN中每个PLMN的网络切片组标识、与所述每个PLMN中的每个网络切片组标识关联的网络切片标识，所述N个PLMN中包括所述第一PLMN和所述第二PLMN，N为正整数。In conjunction with the fifth aspect, in a possible implementation, the receiving module is further configured to: receive first information from the access network device, where the first information includes each PLMN of the N public land mobile network PLMNs. The network slice group identifier, the network slice identifier associated with each network slice group identifier in each PLMN, the N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
第六方面，本申请提供一种通信装置，应用于接入网设备，包括：接收模块，用于接收来自终端设备的第一标识信息，所述第一标识信息指示终端设备选择的第一公共陆地移动网PLMN；发送模块，用于向核心网设备发送所述第一标识信息和第二标识信息，所述第二标识信息指示所述接入网设备在广播基于网络切片组标识的参数信息时使用的第二PLMN，所述第二PLMN与所述第一PLMN不同；所述发送模块，还用于广播所述第二PLMN中的基于网络切片组标识的参数信息。In a sixth aspect, the present application provides a communication device, applied to access network equipment, including: a receiving module configured to receive first identification information from a terminal equipment, where the first identification information indicates a first public information selected by the terminal equipment. Land Mobile Network PLMN; a sending module, configured to send the first identification information and the second identification information to the core network equipment, where the second identification information indicates that the access network equipment is broadcasting parameter information based on the network slice group identification. The second PLMN is used when the second PLMN is different from the first PLMN; the sending module is also configured to broadcast the parameter information based on the network slice group identifier in the second PLMN.
结合第六方面，在一种可能的实现方式中，所述发送模块还用于：向所述终端设备发送第三指示信息，所述第三指示信息用于向所述终端设备指示所述基于网络切片组标识的参数信息适用的PLMN的标识信息或者不适用的PLMN的标识信息。With reference to the sixth aspect, in a possible implementation, the sending module is further configured to: send third indication information to the terminal device, where the third indication information is used to indicate to the terminal device the The identification information of the PLMN to which the parameter information of the network slice group identification is applicable or the identification information of the PLMN to which the parameter information of the network slice group identification is not applicable.
结合第六方面，在一种可能的实现方式中，所述发送模块还用于：广播所述第一PLMN中基于第二目标网络切片组标识的参数信息，所述第二目标网络切片组标识与第三网络切片标识关联，所述第三网络切片标识指示的网络切片业务在所述第二PLMN中没有对应的网络切片标识。Combined with the sixth aspect, in a possible implementation manner, the sending module is further configured to: broadcast parameter information in the first PLMN based on a second target network slice group identifier, the second target network slice group identifier Associated with the third network slice identifier, the network slice service indicated by the third network slice identifier does not have a corresponding network slice identifier in the second PLMN.
结合第六方面，在一种可能的实现方式中，所述发送模块还用于：向核心网设备 发送第一信息，所述第一信息包括N个公共陆地移动网PLMN中每个PLMN的网络切片组标识、与所述每个PLMN中的每个网络切片组标识关联的网络切片标识，所述N个PLMN中包括所述第一PLMN和所述第二PLMN，N为正整数。Combined with the sixth aspect, in a possible implementation manner, the sending module is also used to: send a message to the core network device Send first information, where the first information includes a network slice group identifier of each PLMN in the N public land mobile network PLMNs, and a network slice identifier associated with each network slice group identifier in each PLMN, said N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
第七方面，本申请提供一种通信装置，应用于终端设备，包括：接收模块，用于接收接入网设备广播的第二公共陆地移动网PLMN中的基于网络切片组标识的参数信息；In a seventh aspect, the present application provides a communication device, applied to terminal equipment, including: a receiving module configured to receive parameter information based on the network slicing group identifier in the second public land mobile network PLMN broadcast by the access network equipment;
所述接收模块，还用于接收来自核心网设备的第一指示信息，所述第一指示信息指示第一PLMN中第一网络切片标识与第一目标网络切片组标识之间的映射关系，所述第一PLMN为终端设备选择的PLMN；处理模块，用于确定第一目标业务对应的网络切片标识为所述第一网络切片标识时，从所述广播中获取基于所述第一目标网络切片组标识的参数信息。The receiving module is also configured to receive first indication information from the core network device, where the first indication information indicates the mapping relationship between the first network slice identifier and the first target network slice group identifier in the first PLMN, so The first PLMN is the PLMN selected by the terminal device; the processing module is used to determine that the network slice identifier corresponding to the first target service is the first network slice identifier, and obtain the information based on the first target network slice from the broadcast. Parameter information for group identification.
结合第七方面，在一种可能的实现方式中，所述第一指示信息包括所述第一网络切片标识与所述第二网络切片标识之间的映射信息和所述第二PLMN中所述第二网络切片标识与所述第一目标网络切片组标识之间的映射信息。With reference to the seventh aspect, in a possible implementation manner, the first indication information includes mapping information between the first network slice identifier and the second network slice identifier and the mapping information in the second PLMN. Mapping information between the second network slice identifier and the first target network slice group identifier.
结合第七方面，在一种可能的实现方式中，所述第一指示信息包括所述第一网络切片标识与所述第一目标网络切片组标识之间的映射信息。With reference to the seventh aspect, in a possible implementation manner, the first indication information includes mapping information between the first network slice identifier and the first target network slice group identifier.
结合第七方面，在一种可能的实现方式中，所述接收模块还用于：接收来自所述核心网设备的第二指示信息，所述第二指示信息包括第三网络切片标识与第二目标网络切片组标识之间的映射关系，所述第二目标网络切片组标识为所述第一PLMN中与所述第三网络切片标识关联的网络切片组标识；接收所述接入网设备广播的第一PLMN中的基于第二目标网络切片组标识的参数信息。In conjunction with the seventh aspect, in a possible implementation, the receiving module is further configured to: receive second indication information from the core network device, where the second indication information includes a third network slice identifier and a second Mapping relationship between target network slice group identifiers, the second target network slice group identifier is the network slice group identifier associated with the third network slice identifier in the first PLMN; receiving the access network device broadcast Parameter information based on the second target network slice group identifier in the first PLMN.
结合第七方面，在一种可能的实现方式中，所述处理模块还用于：确定第二目标业务对应的网络切片标识为所述第三网络切片标识时，若基于所述第一指示信息确定出所述第二目标业务在所述第二PLMN中不存在对应的网络切片组标识，基于所述第二指示信息确定所述第二目标网络切片组标识；从所述广播中获取所述第一PLMN中的基于第二目标网络切片组标识的参数信息。Combined with the seventh aspect, in a possible implementation, the processing module is further configured to: when determining that the network slice identifier corresponding to the second target service is the third network slice identifier, if based on the first indication information It is determined that the second target service does not have a corresponding network slice group identifier in the second PLMN, and the second target network slice group identifier is determined based on the second indication information; and the second target network slice group identifier is obtained from the broadcast. Parameter information based on the second target network slice group identifier in the first PLMN.
结合第七方面，在一种可能的实现方式中，所述接收模块还用于：接收第三指示信息，所述第三指示信息用于向所述终端设备指示所述基于网络切片组标识的参数信息适用的PLMN的标识信息或者不适用的PLMN的标识信息。With reference to the seventh aspect, in a possible implementation, the receiving module is further configured to: receive third indication information, the third indication information being used to indicate to the terminal device the network slice group identifier-based The identification information of the PLMN to which the parameter information is applicable or the identification information of the PLMN to which the parameter information is not applicable.
第八方面，本申请提供一种通信***，包括第五方面所述的装置以及第六方面所述的装置，或者包括第六方面所述的装置和第七方面所述的装置，又或者包括第五方面所述的装置、第六方面所述的装置以及第七方面所述的装置。In an eighth aspect, this application provides a communication system that includes the device described in the fifth aspect and the device described in the sixth aspect, or includes the device described in the sixth aspect and the device described in the seventh aspect, or includes The device according to the fifth aspect, the device according to the sixth aspect and the device according to the seventh aspect.
第九方面，本申请提供一种通信装置，包括：存储器和处理器；所述存储器用于存储程序指令；所述处理器用于调用所述存储器中的程序指令执行如第一方面或第二方面或第三方面或其中任意一种可能的实现方式所述的方法。In a ninth aspect, the present application provides a communication device, including: a memory and a processor; the memory is used to store program instructions; the processor is used to call the program instructions in the memory to execute the first aspect or the second aspect. Or the method described in the third aspect or any of the possible implementations.
第十方面，本申请提供一种计算机可读介质，所述计算机可读介质存储用于计算机执行的程序代码，该程序代码包括用于执行第一方面或第二方面或第三方面或其中任意一种可能的实现方式所述的方法的指令。In a tenth aspect, the present application provides a computer-readable medium that stores program code for computer execution. The program code includes a program code for executing the first aspect, the second aspect, the third aspect, or any of them. One possible implementation of the method described is the instruction.
第十一方面，本申请提供一种计算机程序产品，所述计算机程序产品中包括计算 机程序代码，当所述计算机程序代码在计算机上运行时，使得所述计算机实现如第一方面或第二方面或其中任意一种可能的实现方式所述的方法。In an eleventh aspect, the present application provides a computer program product, the computer program product includes a computer program Computer program code, when the computer program code is run on a computer, causes the computer to implement the method described in the first aspect or the second aspect or any one of the possible implementations.
附图说明Description of the drawings
图1为本申请一个实施例提供的通信***的结构性示意图；Figure 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application;
图2为本申请一个实施例提供的通信方法的结构性示意图；Figure 2 is a structural schematic diagram of a communication method provided by an embodiment of the present application;
图3为本申请另一个实施例提供的通信方法的结构性示意图；Figure 3 is a structural schematic diagram of a communication method provided by another embodiment of the present application;
图4为本申请又一个实施例提供的通信方法的结构性示意图；Figure 4 is a structural schematic diagram of a communication method provided by another embodiment of the present application;
图5为本申请另一个实施例提供的通信装置的结构性示意图；Figure 5 is a schematic structural diagram of a communication device provided by another embodiment of the present application;
图6为本申请另一个实施例提供的通信装置的结构性示意图；Figure 6 is a schematic structural diagram of a communication device provided by another embodiment of the present application;
图7为本申请另一个实施例提供的终端设备的结构性示意图；Figure 7 is a schematic structural diagram of a terminal device provided by another embodiment of the present application;
图8为本申请另一个实施例提供的通信装置的结构性示意图。Figure 8 is a schematic structural diagram of a communication device provided by another embodiment of the present application.
具体实施方式Detailed ways
为了便于清楚描述本申请实施例的技术方案，在本申请的实施例中，采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分。例如，第一PLMN和第二PLMN是为了区分不同的PLMN，第一消息和第二消息是为了区分不同的消息，并不对其先后顺序进行限定。本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定，并且“第一”、“第二”等字样也并不限定一定不同。In order to facilitate a clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as “first” and “second” are used to distinguish the same or similar items with basically the same functions and effects. For example, the first PLMN and the second PLMN are used to distinguish different PLMNs, and the first message and the second message are used to distinguish different messages, and their order is not limited. Those skilled in the art can understand that words such as "first" and "second" do not limit the number and execution order, and words such as "first" and "second" do not limit the number and execution order.
需要说明的是，本申请中，“示例性地”或者“例如”等词用于表示作例子、例证或说明。本申请中被描述为“示例性地”或者“例如”的任何实施例或设计方案不应被解释为比其他实施例或设计方案更优选或更具优势。确切而言，使用“示例性地”或者“例如”等词旨在以具体方式呈现相关概念。It should be noted that in this application, words such as "exemplarily" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "such as" is not intended to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the words "exemplarily" or "for example" is intended to present the relevant concepts in a concrete manner.
此外，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a、b和c中的至少一项(个)，可以表示：a，或b，或c，或a和b，或a和c，或b和c，或a、b和c，其中a，b，c可以是单个，也可以是多个。In addition, "at least one" means one or more, and "plurality" means two or more. "And/or" describes the association of associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the related objects are in an "or" relationship. "At least one of the following" or similar expressions thereof refers to any combination of these items, including any combination of a single item (items) or a plurality of items (items). For example, at least one of a, b and c can mean: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c, where a, b, c can be single or multiple.
下面，结合附图，对本申请实施例进行详细描述。Below, the embodiments of the present application are described in detail with reference to the accompanying drawings.
为便于理解，下面对本申请实施例所涉及的术语进行简单介绍。To facilitate understanding, the terms involved in the embodiments of this application are briefly introduced below.
1.网络切片(network slice)1. Network slice
5G时代有数以千亿的物联网设备接入网络，不同类型的应用场景对网络的需求是差异化的，有的甚至是相互冲突的。通过单一网络同时为不同类型的应用场景提供服务，可能会导致网络架构异常复杂，网络管理效率和资源利用率低下。In the 5G era, hundreds of billions of IoT devices are connected to the network. Different types of application scenarios have different demands on the network, and some even conflict with each other. Providing services for different types of application scenarios through a single network at the same time may lead to extremely complex network architecture and low network management efficiency and resource utilization.
5G网络切片技术通过在同一网络基础设施上虚拟独立逻辑网络的方式为不同的应用场景提供相互隔离的网络环境，使得不同应用场景可以按照各自的需求定制网络 功能和特性，能够切实保障不同业务的QoS需求。5G network slicing technology provides mutually isolated network environments for different application scenarios by virtualizing independent logical networks on the same network infrastructure, allowing different application scenarios to customize the network according to their own needs. Functions and features can effectively guarantee the QoS requirements of different services.
5G网络切片要实现的目标是将终端设备、接入网资源、核心网资源以及网络运维和管理***等进行有机组合，为不同商业场景或者业务类型提供能够独立运维的、相互隔离的完整网络。多种多样的场景对第三代移动通信项目(3rd generation partnership project，3GPP)生态***提出了不同的需要，例如，计费、策略、安全、移动性等。3GPP强调了网络切片之间不相互影响，例如突发的大量的抄表业务不应该影响正常的移动宽带业务。为了满足多样性需求和切片间的隔离，需要业务间相对独立的管理和运维，并提供量身定做的业务功能和分析能力。不同类型业务的实例部署在不同的网络切片上，相同业务类型的不同实例也可部署在不同的网络切片上。The goal of 5G network slicing is to organically combine terminal equipment, access network resources, core network resources, and network operation and management systems to provide different business scenarios or business types with a complete and mutually isolated network that can be independently operated and maintained. network. A variety of scenarios have put forward different needs for the third generation mobile communication project (3rd generation partnership project, 3GPP) ecosystem, such as billing, policy, security, mobility, etc. 3GPP emphasizes that network slices should not affect each other. For example, a sudden large number of meter reading services should not affect normal mobile broadband services. In order to meet the diverse needs and isolation between slices, relatively independent management and operation and maintenance between businesses are required, and tailor-made business functions and analysis capabilities are provided. Instances of different types of services are deployed on different network slices, and different instances of the same service type can also be deployed on different network slices.
当核心网部署了网络切片，如果用户初始附着到网络时，会触发网络切片的选择过程。网络切片的选择过程需要考虑的参数包括：用户的签约数据、本地配置信息、漫游协议、运营商的策略等，综合考虑上述参数可以为终端设备选择合适的切片类型。When the core network deploys network slicing, the network slice selection process will be triggered when a user initially attaches to the network. Parameters that need to be considered in the network slicing selection process include: user subscription data, local configuration information, roaming agreements, operator policies, etc. Taking the above parameters into consideration, the appropriate slicing type can be selected for the terminal device.
本申请实施例中可以将网络切片简称为切片。In the embodiment of this application, network slicing may be referred to as slice for short.
2.网络切片的标识2. Identification of network slices
单个网络切片选择辅助信息(single network slice selection assistance information，S-NSSAI)用于标识单个网络切片。S-NSSAI包括切片类型/业务类型(slice/service type，SST)和切片差异化标识(slice differentiator，SD)，其中，SST用于描述网络切片的特性和业务方面的特征；SD用于区分具有相同SST特征的不同网络切片。Single network slice selection assistance information (S-NSSAI) is used to identify a single network slice. S-NSSAI includes slice type/service type (SST) and slice differentiation identifier (slice differentiator, SD). Among them, SST is used to describe the characteristics and service characteristics of network slices; SD is used to distinguish the characteristics of network slices. Different network slices of the same SST features.
网络切片选择辅助信息(network slice selection assistance information，NSSAI)是一组S-NSSAI的集合，用于标识一个或多个网络切片。Network slice selection assistance information (NSSAI) is a set of S-NSSAI used to identify one or more network slices.
3.网络切片组的标识3. Identification of the network slicing group
接入网设备可以通过广播或者专用信令使得终端设备感知到针对切片的相关参数信息，例如针对切片的小区重选优先级参数信息或者针对切片的随机接入参数信息。但考虑到基于切片粒度的广播会带来比较大的信令开销并存在安全隐患的问题，因此当前在广播或者使用专用信令来使得终端设备感知针对切片的相关参数信息时，使用网络切片组(slice group)的概念，即将一个或多个切片按照一定的规则进行分组，对于不同的分组(即形成了一个网络切片组)，使用不同的标识(即网络切片组的标识，也称为slice group ID)来进行区分。The access network device can enable the terminal device to perceive relevant parameter information for the slice through broadcast or dedicated signaling, such as cell reselection priority parameter information for the slice or random access parameter information for the slice. However, considering that broadcasting based on slice granularity will bring relatively large signaling overhead and pose security risks, currently when broadcasting or using dedicated signaling to make terminal devices perceive relevant parameter information for slices, network slice groups are used. The concept of (slice group) is to group one or more slices according to certain rules. For different groups (that is, forming a network slice group), use different identifiers (that is, the identifier of the network slice group, also called slice group ID) to distinguish.
具体地，一个或多个S-NSSAI经映射可得到特定的slice group ID，在特定区域内相同的slice group ID支持相同的S-NSSAI。Specifically, one or more S-NSSAI can be mapped to a specific slice group ID, and the same slice group ID supports the same S-NSSAI in a specific area.
在此说明的是，本申请中所涉及的网络切片组(slice group)也可以被称为其他名称，例如是网络切片接入层组(network slice AS group，NSAG)。同理，当网络切片组被称为是NSAG时，slice group ID就变为NSAG ID。It should be noted here that the network slice group (slice group) involved in this application can also be called other names, such as network slice access layer group (network slice AS group, NSAG). In the same way, when the network slice group is called NSAG, the slice group ID becomes NSAG ID.
应理解，在未来的标准中，该名称仍有可能发生变化，但只要所起的功能与本申请相同，也应归属于本申请的构思。It should be understood that this name may still change in future standards, but as long as it serves the same function as this application, it should also be attributed to the concept of this application.
还在此说明的是，本申请中，为便于描述，以网络切片组(slice group)为例说明本申请提供的通信方法。It should also be noted that in this application, for convenience of description, a network slice group (slice group) is used as an example to illustrate the communication method provided by this application.
4.多运营商核心网模式4. Multi-operator core network model
运营商独立建网时，面临高昂的频谱牌照和网络部署成本、以及短期内完成较高 网络覆盖的要求和站点部署的挑战，为此引入了网络共享的概念。其中，网络共享是指多家运营商(或第三方)对网络基础设施、网络设备及频谱资源的任何程度的合作或共享。网络基础设施包括站址、机房设施、铁塔、电源设备等站点基础设施；网络设备包括基站、传输、核心网等电信网络设备。When operators build networks independently, they face high spectrum license and network deployment costs, as well as high costs to complete in a short period of time. Network coverage requirements and site deployment challenges have led to the introduction of the concept of network sharing. Among them, network sharing refers to any degree of cooperation or sharing of network infrastructure, network equipment and spectrum resources by multiple operators (or third parties). Network infrastructure includes site infrastructure such as site, computer room facilities, towers, and power supply equipment; network equipment includes telecommunications network equipment such as base stations, transmission, and core networks.
多运营商核心网(multiple operation core network，MOCN)模式，也称为共载频共享模式，是当前的一种网络共享方式。当多个运营商应用MOCN模式时，多个运营商共享站点的基础设施和网络设备，并且也共享小区，该共享小区同时归属于多个运营商。The multiple operation core network (MOCN) mode, also known as the co-carrier frequency sharing mode, is a current network sharing method. When multiple operators apply the MOCN mode, multiple operators share site infrastructure and network equipment, and also share cells, and the shared cells belong to multiple operators at the same time.
结合图1，说明适用于本申请实施例的通信***的结构性示意图。如图1所示，该通信***包括终端设备101、接入网设备102和核心网设备103。With reference to FIG. 1 , a schematic structural diagram of a communication system suitable for embodiments of the present application is described. As shown in Figure 1, the communication system includes a terminal device 101, an access network device 102 and a core network device 103.
其中，终端设备101可以是一种向用户提供语音和/或数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。终端设备也可以称为用户设备(user equipment，UE)、接入终端(access terminal)、用户单元(user unit)、用户站(user station)、移动站(mobile station)、移动台(mobile)、远方站(remote station)、远程终端(remote terminal)、移动设备(mobile equipment)、用户终端(user terminal)、无线通信设备(wireless telecom equipment)、用户代理(user agent)、用户装备(user equipment)或用户装置。终端设备可以是无线局域网(wireless local Area networks，WLAN)中的站点(station，STA)，可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant，PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备以及下一代通信***(例如，第五代(fifth-generation，5G)通信网络)中的终端或者未来演进的公共陆地移动网络(public land mobile network，PLMN)网络中的终端设备等。其中，5G还可以被称为新空口(new radio，NR)。本申请一种可能的应用的场景中，终端设备也可以为经常工作在地面的终端设备，例如车载设备。在本申请中，为了便于叙述，部署在上述设备中的芯片，或者芯片也可以称为终端设备。The terminal device 101 may be a device that provides voice and/or data connectivity to users, for example, a handheld device, a vehicle-mounted device, etc. with a wireless connection function. Terminal equipment can also be called user equipment (UE), access terminal (access terminal), user unit (user unit), user station (user station), mobile station (mobile station), mobile station (mobile), Remote station, remote terminal, mobile equipment, user terminal, wireless telecom equipment, user agent, user equipment or user device. The terminal device can be a station (STA) in a wireless local area network (WLAN), a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (wireless local) loop (WLL) stations, personal digital assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, and next-generation communication systems ( For example, terminals in the fifth-generation (5G) communication network) or terminal equipment in the future evolved public land mobile network (public land mobile network, PLMN) network, etc. Among them, 5G can also be called new radio (new radio, NR). In a possible application scenario of this application, the terminal device may also be a terminal device that often works on the ground, such as a vehicle-mounted device. In this application, for convenience of description, the chip deployed in the above-mentioned device, or the chip, may also be called a terminal device.
本申请实施例中，UE与终端设备两个术语之间可以互换，基站与接入网设备两个术语之间也可以互换。In the embodiments of this application, the terms UE and terminal equipment are interchangeable, and the terms base station and access network equipment are also interchangeable.
接入网设备102可以是任意一种具有无线收发功能的设备。该设备包括但不限于：演进型节点B(evolved NodeB，eNB或eNodeB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base stationcontroller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，homeevolved NodeB，或home Node B，HNB)、基带单元(base band unit，BBU)，无线保真(wireless fidelity，WIFI)***中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and receptionpoint，TRP)等，还可以为5G，如，NR，***中的gNB，或，传输点(TRP或TP)，5G***或未来6G***中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)或分布式单元(distributed unit，DU)等。The access network device 102 may be any device with wireless transceiver functions. The equipment includes but is not limited to: evolved NodeB (evolved NodeB, eNB or eNodeB), wireless network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base stationcontroller, BSC) , base transceiver station (BTS), home base station (e.g., homeevolved NodeB, or home Node B, HNB), base band unit (BBU), wireless fidelity (WIFI) system Access point (AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc., can also be 5G, such as NR, gNB, or transmission point (TRP or TP) in the system, one or a group (including multiple antenna panels) of antenna panels of the base station in the 5G system or future 6G system, or it can also be the antenna panel that constitutes the gNB or transmission point Network nodes, such as baseband unit (BBU) or distributed unit (DU), etc.
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还 可以包括射频单元(radio unit，RU)。CU实现gNB的部分功能，DU实现gNB的部分功能，例如，CU实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能，DU实现无线链路控制(radio link control，RLC)层、媒体接入控制(media access control，MAC)层和物理(physical，PHY)层的功能。由于RRC层的信息最终会变成物理层的信息，或者，由物理层的信息转变而来，因而，在这种架构下，高层信令，如RRC层信令，也可以认为是由DU发送的，或者，由DU+CU发送的。可以理解的是，网络设备可以为CU节点、或DU节点、或包括CU节点和DU节点的设备。此外，CU可以划分为接入网(radio access network，RAN)中的网络设备，也可以将CU划分为核心网(corenetwork，CN)中的网络设备，本申请对此不做限定。In some deployments, gNB may include centralized units (CUs) and DUs. gNB also A radio unit (RU) may be included. CU implements some functions of gNB, and DU implements some functions of gNB. For example, CU implements radio resource control (RRC) and packet data convergence protocol (PDCP) layer functions, and DU implements wireless link functions of the radio link control (RLC) layer, media access control (MAC) layer and physical (PHY) layer. Since RRC layer information will eventually become physical layer information, or be transformed from physical layer information, in this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by DU , or sent by DU+CU. It can be understood that the network device may be a CU node, a DU node, or a device including a CU node and a DU node. In addition, the CU can be divided into network equipment in the access network (radio access network, RAN), or the CU can be divided into network equipment in the core network (corenetwork, CN), which is not limited in this application.
本申请中，接入网设备和终端设备之间可以通过授权频谱进行通信，也可以通过非授权频谱进行通信，也可以同时通过授权频谱和免授权频谱进行通信。接入网设备和终端设备之间可以通过6千兆赫(gigahertz，GHZ)以下的频谱进行通信，也可以通过该6GHZ以上的频谱进行通信，还可以同时使用6GHZ以下的频谱和6GHZ以上的频谱进行通信。本申请实施例对接入网设备和终端设备之间所使用的频谱资源不做限定。In this application, the access network equipment and the terminal equipment can communicate through the licensed spectrum, the unlicensed spectrum, or the licensed spectrum and the unlicensed spectrum at the same time. The access network equipment and the terminal equipment can communicate through the spectrum below 6 gigahertz (GHZ), they can also communicate through the spectrum above 6 GHZ, and they can also use the spectrum below 6 GHZ and the spectrum above 6 GHZ at the same time. communication. The embodiments of this application do not limit the spectrum resources used between the access network equipment and the terminal equipment.
核心网设备103主要包括数据面的用户面功能(user equipment，UPF)和控制面功能。其中，用户面功能主要负责分组数据包的转发、服务质量(quality ofservice，QoS)控制、计费信息统计和连接外部网络等，其包括了长期演进技术(long term evolution，LTE)的服务网关(serving gateway，SGW)和共用数据网网关(public data network gateway，PDN-GW)的相关功能。控制面功能主要负责业务流程交互、向用户面下发数据包转发策略、QoS控制策略等。示例性地，控制面功能中的网元主要包括：移动性管理功能(acess and mobility function，AMF)、会话管理功能(session management function，SMF)、策略控制功能(policy control function，PCF)、应用功能(application function，AF)、网络开放功能(network exposure function，NEF)等。其中，AMF网元与接入网设备102通过NG接口相连，可以对终端设备接入核心网络进行管理，例如：终端设备的接入控制、终端设备的移动性管理、终端设备的附着与去附着、触发LMF网元对终端设备定位，承担终端设备与LMF网元之间的定位相关消息的转发，以及接入网设备与LMF网元之间的定位相关消息的转发。LMF网元可以基于AMF网元的定位请求对终端设备定位，具体地，在对终端设备定位时，LMF网元可以决定对终端设备使用的定位方法，以及，对终端设备定位的网络设备。应理解，这里所说的LMF网元的功能也可以称为是LMF的功能。也可以说，LMF网元用于实现LMF的功能。SMF网元主要负责管理用户协议数据单元(protocol data unit，PDU)会话的创建、删除等，维护PDU会话上下文以及用户面转发管道信息。PCF主要负责执行策略控制，类似于长期演进技术(long term evolution，LTE)中的策略与计费规则功能(policy and charging rules function，PCRF)网元，包括生成、管理用户、会话、服务质量(quality of service，QoS)流处理策略、服务质量以及计费规则的生成，并将相应规则通过SMF下发到UPF网元。AF网元主要负责提供各种业务服务的功能，能够通过NEF网元与核心网交互，以及能够和策略管理框架交互进行策略管理。 NEF用于提供网络能力开放相关的框架、鉴权和接口，在5G***网络功能和其他网络功能之间传递信息。The core network equipment 103 mainly includes user plane functions (user equipment, UPF) of the data plane and control plane functions. Among them, the user plane function is mainly responsible for the forwarding of packet data packets, quality of service (QoS) control, billing information statistics and connection to external networks, etc. It includes the service gateway (LTE) of long term evolution technology (LTE). Serving gateway (SGW) and public data network gateway (PDN-GW) related functions. The control plane function is mainly responsible for business process interaction, delivering data packet forwarding strategies, QoS control strategies, etc. to the user plane. Exemplarily, the network elements in the control plane functions mainly include: mobility management function (access and mobility function, AMF), session management function (SMF), policy control function (PCF), application Function (application function, AF), network exposure function (network exposure function, NEF), etc. Among them, the AMF network element is connected to the access network equipment 102 through the NG interface, and can manage the access of terminal equipment to the core network, such as: access control of terminal equipment, mobility management of terminal equipment, and attachment and detachment of terminal equipment. , trigger the LMF network element to position the terminal device, and undertake the forwarding of positioning-related messages between the terminal device and the LMF network element, as well as the forwarding of positioning-related messages between the access network device and the LMF network element. The LMF network element can locate the terminal device based on the positioning request of the AMF network element. Specifically, when locating the terminal device, the LMF network element can decide the positioning method to be used for the terminal device and the network device to position the terminal device. It should be understood that the functions of the LMF network element mentioned here can also be called the functions of the LMF. It can also be said that the LMF network element is used to implement the functions of the LMF. The SMF network element is mainly responsible for managing the creation and deletion of user protocol data unit (PDU) sessions, maintaining PDU session context and user plane forwarding pipeline information. PCF is mainly responsible for executing policy control, similar to the policy and charging rules function (PCRF) network element in long term evolution (LTE), including generating, managing users, sessions, quality of service ( Quality of service (QoS) flow processing policy, service quality and charging rules are generated, and the corresponding rules are delivered to UPF network elements through SMF. The AF network element is mainly responsible for providing various business service functions. It can interact with the core network through the NEF network element and interact with the policy management framework for policy management. NEF is used to provide frameworks, authentication and interfaces related to network capability opening, and to transfer information between 5G system network functions and other network functions.
可以理解的是，图1中示出的终端设备的数量仅是一种示例。在实际过程中终端设备的数量还可以为其它数量。在此说明的是，本申请实施例中对于网络设备和终端设备的具体形式不进行限定。It can be understood that the number of terminal devices shown in Figure 1 is only an example. In the actual process, the number of terminal devices can also be other numbers. It should be noted here that the specific forms of network equipment and terminal equipment are not limited in the embodiments of the present application.
应注意，在本申请实施例中，终端设备或接入网设备包括硬件层、运行在硬件层之上的操作***层，以及运行在操作***层上的应用层。该硬件层包括中央处理器(central processing unit，CPU)、内存管理单元(memory management unit，MMU)和内存(也称为主存)等硬件。该操作***可以是任意一种或多种通过进程(process)实现业务处理的计算机操作***，例如，Linux操作***、Unix操作***、Android操作***、iOS操作***或windows操作***等。该应用层包含浏览器、通讯录、文字处理软件、即时通信软件等应用。并且，本申请实施例并未对本申请实施例提供的方法的执行主体的具体结构特别限定，只要能够通过运行记录有本申请实施例的提供的方法的代码的程序，以根据本申请实施例提供的方法进行通信即可。例如，本申请实施例提供的方法的执行主体可以是终端设备或网络设备，或者，是终端设备或网络设备中能够调用程序并执行程序的功能模块。It should be noted that in this embodiment of the present application, the terminal device or the access network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. This hardware layer includes hardware such as central processing unit (CPU), memory management unit (MMU) and memory (also called main memory). The operating system can be any one or more computer operating systems that implement business processing through processes, such as Linux operating system, Unix operating system, Android operating system, iOS operating system or windows operating system, etc. This application layer includes applications such as browsers, address books, word processing software, and instant messaging software. Moreover, the embodiments of the present application do not specifically limit the specific structure of the execution subject of the method provided by the embodiment of the present application, as long as the program that records the code of the method provided by the embodiment of the present application can be run to provide according to the embodiment of the present application. method to communicate. For example, the execution subject of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call a program and execute the program.
另外，本申请的各个方面的方法可以使用编程方式实现，并形成计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括，但不限于:磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(compact disc，CD)、数字通用盘(digital versatile disc，DVD)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(erasable programmable read-only memory，EPROM)、卡、棒或钥匙驱动器等)。另外，本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于，无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。In addition, the methods of various aspects of the present application can be implemented using programming and form a computer program accessible by a computer-readable device, a carrier, or a medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, tapes, etc.), optical disks (e.g., compact discs (CD), digital versatile discs (DVD)) etc.), smart cards and flash memory devices (e.g. erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). Additionally, the various storage media described herein may represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and/or carrying instructions and/or data.
应理解，图1仅为示例，通信***中还可以包括其他网络设备，此处不再赘述。It should be understood that Figure 1 is only an example, and other network devices may also be included in the communication system, which will not be described again here.
应注意，本申请实施例描述的网络架构以及业务场景是为了更加清楚地说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。It should be noted that the network architecture and business scenarios described in the embodiments of this application are for the purpose of more clearly explaining the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. Those of ordinary skill in the art will know that With the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.
随着移动通信技术的发展，各类新业务以及应用场景不断涌现，示例性地，这些业务例如包括增强的移动宽带(enhanced mobile broadband，eMBB)业务、海量机器类型通信(massive machine type communication，MMTC)业务、超可靠低延迟通信(ultra-reliable and low latency communications，URLLC)业务。这些业务对网络功能、连接性能以及安全性等方面的需求存在很大的差别。如果利用单一网络去承载这些业务，将很难同时满足高带宽、低时延、高可靠性等需求。另外，为每种业务去单独新建网络又会带来巨大的成本。这就要求5G在具备灵活、可拓展性的同时，能够满足不同的业务需求。With the development of mobile communication technology, various new services and application scenarios continue to emerge. For example, these services include enhanced mobile broadband (eMBB) services, massive machine type communication (MMTC) ) business, ultra-reliable and low latency communications (URLLC) business. These businesses have very different requirements for network functions, connection performance, and security. If a single network is used to carry these services, it will be difficult to meet the requirements of high bandwidth, low latency, and high reliability at the same time. In addition, building a separate network for each service will bring huge costs. This requires 5G to be flexible and scalable while also being able to meet different business needs.
为此，对于图1所示的通信***，可以通过端到端的网络切片(network slice)为用户提供定制化的网络服务，通过对网络资源的灵活分配、按需组网，在同一套物理 设施上虚拟出多个具有不同特点且相互隔离的逻辑子网，来针对性地为用户提供服务。目前，对于图1所示的通信***，为了区分不同的网络切片，对每个网络切片使用单个网络切片选择辅助信息(single network slice selection assistance information，S-NSSAI)来进行标识。本申请中，将网络切片也简称为切片。To this end, for the communication system shown in Figure 1, customized network services can be provided for users through end-to-end network slices. Through flexible allocation of network resources and on-demand networking, the same set of physical Multiple logical subnets with different characteristics and mutual isolation are virtualized on the facility to provide targeted services to users. Currently, for the communication system shown in Figure 1, in order to distinguish different network slices, each network slice is identified using a single network slice selection assistance information (S-NSSAI). In this application, network slicing is also referred to as slice.
通常，当引入上述所述的网络切片后，在一些场景中，图1中的接入网设备102需要以某个PLMN中的网络切片组(slice group)标识作为参考来广播或使用专用信令使得终端设备感知到基于slice group标识的参数信息，或者也称为使用某个PLMN中的网络切片组(slice group)标识来广播或使用专用信令使得终端设备感知到基于slice group标识的参数信息。而对于终端设备，在确定出当前业务对应的网络切片标识后，可以基于网络切片标识与网络切片组标识之间的映射关系，确定出当前业务对应的目标网络切片组标识，以从广播信息或专用信息中获取到基于目标网络切片组标识的参数信息，并基于目标网络切片组标识的参数信息执行一些操作。其中，网络切片组标识指示了一组网络切片(称为网络切片组)，该组中每个网络切片具有自己的网络切片标识且还具有相同的网络切片组标识。Generally, when the above-mentioned network slicing is introduced, in some scenarios, the access network device 102 in Figure 1 needs to use the network slice group (slice group) identifier in a certain PLMN as a reference to broadcast or use dedicated signaling. Make the terminal device perceive the parameter information based on the slice group identifier, or it is also called using the network slice group (slice group) identifier in a certain PLMN to broadcast or use dedicated signaling to make the terminal device perceive the parameter information based on the slice group identifier. . For the terminal device, after determining the network slice identifier corresponding to the current service, the target network slice group identifier corresponding to the current service can be determined based on the mapping relationship between the network slice identifier and the network slice group identifier, so as to obtain the broadcast information or The parameter information based on the target network slicing group identifier is obtained from the dedicated information, and some operations are performed based on the parameter information based on the target network slicing group identifier. Wherein, the network slice group identifier indicates a group of network slices (called a network slice group), and each network slice in the group has its own network slice identifier and also has the same network slice group identifier.
示例性地，在引入切片技术后的小区重选场景中，当终端设备从连接态转移到空闲态、非激活态或终端设备选择了PLMN初始驻留到某个小区后，需要执行小区重选流程，以获得质量更好的小区进行驻留。For example, in the cell reselection scenario after the introduction of slicing technology, when the terminal equipment transfers from the connected state to the idle state, inactive state or the terminal equipment selects a PLMN to initially camp in a certain cell, cell reselection needs to be performed. process to obtain better quality communities for residence.
而终端设备在执行小区重选流程时，需要使用到基于网络切片组标识的小区重选优先级参数信息。因此，在这种场景中，基站会基于参考的PLMN中的网络切片组标识，来广播或使用专用信令使得终端设备感知到基于不同网络切片组标识的小区重选优先级参数信息。而当终端设备由于移动性需要发起小区重选流程时，终端设备会先确定可能发起的业务对应的网络切片标识，然后基于网络切片标识与网络切片组标识之间的映射关系，确定出可能发起的业务对应的目标网络切片组标识，然后从广播信息或专用信息中获取与目标网络切片组标识相关的小区重选优先级参数信息，其中，与目标网络切片组标识相关的小区重选优先级参数信息指示了支持目标网络切片组标识的频点优先级，最后，终端设备便可以基于该与目标网络切片组标识相关的小区重选优先级参数信息，从服务小区和邻区中确定出最佳小区进行驻留。When the terminal device performs the cell reselection process, it needs to use the cell reselection priority parameter information based on the network slicing group identifier. Therefore, in this scenario, the base station will broadcast or use dedicated signaling based on the network slice group identifier in the reference PLMN so that the terminal device can perceive cell reselection priority parameter information based on different network slice group identifiers. When the terminal device needs to initiate a cell reselection process due to mobility, the terminal device will first determine the network slice identifier corresponding to the service that may be initiated, and then determine the possible initiated service based on the mapping relationship between the network slice identifier and the network slice group identifier. The target network slicing group ID corresponding to the service, and then obtain the cell reselection priority parameter information related to the target network slicing group ID from the broadcast information or dedicated information, where the cell reselection priority related to the target network slicing group ID The parameter information indicates the frequency priority that supports the target network slicing group identity. Finally, the terminal device can determine the best cell reselection priority from the serving cell and neighboring cells based on the cell reselection priority parameter information related to the target network slicing group identity. Stay in a good community.
示例性地，在引入切片技术后的随机接入场景中，终端设备在进行接入时，需要使用到基于不同网络切片组标识的随机接入参数信息。例如，需要使用基于网络切片组标识的随机接入信道分区(也称为RACH Partition)和基于网络切片组标识的随机接入优先级参数也称为RA-Prioritization)。For example, in a random access scenario after slicing technology is introduced, when a terminal device performs access, it needs to use random access parameter information based on different network slicing group identifiers. For example, you need to use random access channel partitioning (also called RACH Partition) based on the network slicing group identity and random access priority parameters based on the network slicing group identity (also called RA-Prioritization).
具体地，在在引入切片技术后的随机接入场景中，基站会基于参考的PLMN中的网络切片组标识，来广播或使用专用信令使得终端设备感知到基于不同网络切片组标识的随机接入参数信息。而当终端设备需要发起某个切片业务的随机接入时，终端设备会先确定当前的业务对应的网络切片标识，然后基于网络切片标识与网络切片组标识之间的映射关系，确定出当前业务对应的目标网络切片组标识，并从广播信息或专用信息中获取与目标网络切片组标识的随机接入参数信息，最后，终端设备便可以基于该目标网络切片组标识的随机接入参数信息执行随机接入的流程。Specifically, in the random access scenario after the introduction of slicing technology, the base station will broadcast or use dedicated signaling based on the network slice group identifier in the reference PLMN to make the terminal device perceive random access based on different network slice group identifiers. Enter parameter information. When the terminal device needs to initiate random access to a certain slice service, the terminal device will first determine the network slice identifier corresponding to the current service, and then determine the current service based on the mapping relationship between the network slice identifier and the network slice group identifier. The corresponding target network slicing group ID is obtained, and the random access parameter information corresponding to the target network slicing group ID is obtained from the broadcast information or dedicated information. Finally, the terminal device can perform execution based on the random access parameter information of the target network slicing group ID. Random access process.
但是，应理解，上述接入网设备102广播或使用专用信令来使终端设备感知基于不同 网络切片组标识的参数信息时，均是以一个PLMN中的网络切片组标识作为参考的。However, it should be understood that the above-mentioned access network device 102 broadcasts or uses dedicated signaling to cause the terminal device to perceive different When providing the parameter information of the network slice group identifier, the network slice group identifier in a PLMN is used as a reference.
在这种情况下，若通信***使用的是多运营商核心网(multiple operation core network，MOCN)模式，即上述接入网设备102覆盖的某些小区(例如图1中的小区1、小区2、小区3和小区4)可以被多个运营商网络共同使用时，那么由于各个运营商网络对应的PLMN中的网络切片标识以及网络切片组标识可能是不一样的，而接入网设备102又只能以某一个PLMN中的网络切片组标识作为参考来进行广播，因此，对于选择其他PLMN的终端设备，在确定出业务对应的目标网络切片组标识后，就可能会导致从广播消息或专用信令中获取到的目标参数信息是错误的信息。进一步地，导致选择其他PLMN的终端设备在基于目标参数信息执行相应的流程时失败。In this case, if the communication system uses a multi-operator core network (multiple operation core network, MOCN) mode, that is, certain cells covered by the above-mentioned access network equipment 102 (such as cell 1 and cell 2 in Figure 1 , cell 3 and cell 4) can be used by multiple operator networks, then the network slice identifier and network slice group identifier in the PLMN corresponding to each operator network may be different, and the access network device 102 Broadcasting can only be carried out using the network slicing group identifier in a certain PLMN as a reference. Therefore, for terminal equipment that selects other PLMNs, after determining the target network slicing group identifier corresponding to the service, it may result in broadcast messages or dedicated The target parameter information obtained in signaling is incorrect information. Further, this causes the terminal device that selects other PLMNs to fail when executing the corresponding process based on the target parameter information.
为方便理解，现以两个运营商网络共享上述接入网设备102下的小区为例进行说明。例如，现在网络中包括4个网络切片，假设称为第一个网络切片、第二个网络切片、第三个网络切片和第四个网络切片。For ease of understanding, the description will now be given by taking two operator networks sharing a cell under the access network device 102 as an example. For example, the network now includes 4 network slices, which are assumed to be called the first network slice, the second network slice, the third network slice, and the fourth network slice.
对于第一个运营商配置的第一PLMN中的切片信息如下：slice group1＝{slice1和slice2}；slice group2＝{slice3和slic4}，slice group1和slice group2分别为两个网络切片组标识；而对于第二个运营商配置的第二PLMN中的切片信息如下：slice group1＝{slice3和slice4}；slice group2＝{slice1和slic2}，slice group1和slice group2分别为两个网络切片组标识。其中，slice1为第一个网络切片的标识、slice2为第二个网络切片的标识、slice3为第三个网络切片的标识、slice4为第四个网络切片的标识。The slice information in the first PLMN configured by the first operator is as follows: slice group1={slice1 and slice2}; slice group2={slice3 and slic4}, slice group1 and slice group2 are two network slice group identifiers respectively; and The slice information in the second PLMN configured by the second operator is as follows: slice group1={slice3 and slice4}; slice group2={slice1 and slic2}, slice group1 and slice group2 are two network slice group identifiers respectively. Among them, slice1 is the identifier of the first network slice, slice2 is the identifier of the second network slice, slice3 is the identifier of the third network slice, and slice4 is the identifier of the fourth network slice.
这个时候，对于选择第二PLMN的终端设备，假设该终端设备支持且可能发起或者想要发起第三个网络切片的业务时，那么该终端设备会先确定出网络切片标识为slice3，然后再确定出对应的网络切片组标识是slice group1。然后从广播的信息中去获取与slice group1相关的参数信息。但是，应理解，若当前广播是以第一PLMN作为参考，而第一PLMN中的slice group1中是不关联slice3的，因此，导致选择第二PLMN的终端设备基于slice group1获取的相关的参数信息实际上是错误的信息，从而无法执行相应的流程。At this time, for the terminal device that selects the second PLMN, assuming that the terminal device supports and may initiate or wants to initiate the third network slice service, the terminal device will first determine the network slice identifier as slice3, and then determine The corresponding network slice group identifier is slice group1. Then obtain the parameter information related to slice group1 from the broadcast information. However, it should be understood that if the current broadcast is based on the first PLMN as a reference, and slice group1 in the first PLMN is not associated with slice3, therefore, the terminal device that selects the second PLMN is based on the relevant parameter information obtained by slice group1. It is actually wrong information, making it impossible to perform the corresponding process.
鉴于此，本申请实施例提出一种通信方法和通信装置。可以在MOCN模式下，实现选择第一PLMN的终端设备从广播的第二PLMN中的基于网络切片组标识的参数信息中获取到正确的参数信息，以可以执行相应的流程。In view of this, embodiments of the present application provide a communication method and a communication device. In the MOCN mode, the terminal device that selects the first PLMN can obtain correct parameter information from the broadcast parameter information based on the network slice group identifier in the second PLMN, so that the corresponding process can be executed.
图2为本申请一个实施例提供的通信方法的流程性示意图。如图2所示，该方法可以包括：S212、S214、S216、S218和S220。Figure 2 is a schematic flowchart of a communication method provided by an embodiment of the present application. As shown in Figure 2, the method may include: S212, S214, S216, S218 and S220.
S212，终端设备发送第一标识信息，所述第一标识信息指示终端设备选择的第一PLMN；相应的，接入网设备接收第一标识信息。S212: The terminal device sends first identification information, where the first identification information indicates the first PLMN selected by the terminal device; accordingly, the access network device receives the first identification information.
本实施例中，终端设备是指需要从接入网设备获取基于网络切片组标识的参数信息的终端设备。In this embodiment, the terminal device refers to a terminal device that needs to obtain parameter information based on the network slicing group identifier from the access network device.
例如，终端设备包括需要获取接入网设备广播的基于网络切片组标识的小区重选优先级参数信息的终端设备。又例如，终端设备包括需要获取接入网设备广播的基于网络切片组标识的随机接入参数信息的终端设备。For example, the terminal device includes a terminal device that needs to obtain cell reselection priority parameter information based on the network slice group identifier broadcast by the access network device. For another example, the terminal device includes a terminal device that needs to obtain random access parameter information based on the network slice group identifier broadcast by the access network device.
可以理解的是，通信***中的每个终端设备都需要选择一个PLMN来实现与其他设备的通信。本实施例中，将终端设备选择的PLMN称为第一PLMN。It can be understood that each terminal device in the communication system needs to select a PLMN to implement communication with other devices. In this embodiment, the PLMN selected by the terminal device is called the first PLMN.
本实施例中，为了区分不同的PLMN，对不同的PLMN使用不同的标识信息来进行标 识。其中，在本申请中，将第一PLMN的标识称为第一标识信息。In this embodiment, in order to distinguish different PLMNs, different identification information is used to label different PLMNs. knowledge. In this application, the identification of the first PLMN is called first identification information.
作为一种可实现方式，本实施例中，当终端设备发起初始接入时，可以将第一标识信息携带在RRC建立完成(RRCSetupComplete)信令中发送给接入网设备，相应的，接入网设备从RRCSetupComplete信令中获取到所述第一标识信息。可选地，第一标识信息可以为第一PLMN标识。As an implementation method, in this embodiment, when the terminal device initiates initial access, the first identification information can be carried in the RRC Setup Complete (RRCSetupComplete) signaling and sent to the access network device. Correspondingly, the access network device The network device obtains the first identification information from RRCSetupComplete signaling. Optionally, the first identification information may be a first PLMN identification.
在此说明的是，不同的运营商使用(或配置)不同的PLMN，即运营商和PLMN之间是具有对应关系的。因此本实施例中，终端设备使用第一PLMN也可以认为是使用的第一运营商的配置的PLMN。What is explained here is that different operators use (or configure) different PLMNs, that is, there is a corresponding relationship between operators and PLMNs. Therefore, in this embodiment, the terminal device using the first PLMN can also be considered as using the PLMN configured by the first operator.
S214，接入网设备向核心网设备发送第一标识信息和第二标识信息。S214. The access network device sends the first identification information and the second identification information to the core network device.
相应的，核心网设备接收第一标识信息和第二标识信息；所述第二标识信息指示接入网设备在广播基于网络切片组标识的参数信息时使用的第二PLMN，第二PLMN与所述第一PLMN不同。Correspondingly, the core network device receives the first identification information and the second identification information; the second identification information indicates the second PLMN used by the access network device when broadcasting the parameter information based on the network slice group identification, and the second PLMN is the same as the second identification information. The first PLMN is different.
接入网设备判断第一PLMN是否为第二PLMN，在第一PLMN不是第二PLMN时，向核心网设备发送第一标识信息和第二标识信息，相应的，核心网设备接收第一标识信息和第二标识信息，所述第二标识信息指示所述接入网设备在广播基于网络切片组标识的参数信息时参考的第二PLMN。The access network device determines whether the first PLMN is the second PLMN, and when the first PLMN is not the second PLMN, sends the first identification information and the second identification information to the core network device. Correspondingly, the core network device receives the first identification information. and second identification information, the second identification information indicating the second PLMN that the access network device refers to when broadcasting parameter information based on the network slice group identification.
需要说明的是，不同的运营商使用不同的PLMN，而当多个运营商处于MOCN模式时，接入网设备通常是以一个PLMN中的网络切片组标识作为参考，来广播基于不同网络切片组标识的参数信息的。本申请中，将接入网设备在广播基于不同网络切片组标识的参数信息时参考的PLMN称为第二PLMN。为便于区分，本实施例中也将第一PLMN称为从PLMN或服务PLMN，将第二PLMN称为主PLMN。It should be noted that different operators use different PLMNs, and when multiple operators are in MOCN mode, the access network equipment usually uses the network slicing group identifier in one PLMN as a reference to broadcast messages based on different network slicing groups. Identified parameter information. In this application, the PLMN that the access network device refers to when broadcasting parameter information based on different network slice group identifiers is called the second PLMN. To facilitate distinction, in this embodiment, the first PLMN is also called the slave PLMN or the serving PLMN, and the second PLMN is called the master PLMN.
其中，网络切片组标识对应(或也称为关联)了一组网络切片(称为网络切片组)，该组中每个网络切片通过网络切片标识进行区分且该组中每个网络切片具有相同的网络切片组标识。示例性地，某个运营商配置的网络切片组标识如下：标识为slice group1的网络切片组关联网络切片标识为slice1的网络切片、网络切片标识为slice2的网络切片以及网络切片标识为slice3的网络切片，例如可以表示为：slice group1＝{slice1，slice2，slice3}。Among them, the network slice group identifier corresponds to (or is also called associated with) a group of network slices (called a network slice group). Each network slice in the group is distinguished by the network slice identifier and each network slice in the group has the same The network slice group ID. For example, the network slice group identifier configured by an operator is as follows: the network slice group identifier is slice group1, which is associated with the network slice with the network slice identifier slice1, the network slice identifier with the network slice identifier slice2, and the network slice identifier with the network slice identifier slice3. Slice, for example, can be expressed as: slice group1={slice1, slice2, slice3}.
在此说明的是，本申请实施例对基于网络切片组标识的参数信息的具体内容不做限制。例如，基于网络切片组标识的参数信息可以是基于网络切片组标识的小区重选优先级参数信息，也可以是基于网络切片组标识的随机接入参数信息，其具体内容可以根据应用场景而定。It should be noted here that the embodiment of the present application does not limit the specific content of the parameter information based on the network slice group identifier. For example, the parameter information based on the network slicing group identifier can be cell reselection priority parameter information based on the network slicing group identifier, or it can be random access parameter information based on the network slicing group identifier, and its specific content can be determined according to the application scenario. .
S216，核心网设备向终端设备发送第一指示信息。S216: The core network device sends the first instruction information to the terminal device.
相应的，终端设备接收第一指示信息，所述第一指示信息指示第一PLMN中第一网络切片标识与第一目标网络切片组标识之间的映射关系，第一目标网络切片组标识为第二PLMN中与第二网络切片标识关联的网络切片组标识，第一网络切片标识与第二网络切片标识指示相同的网络切片业务。Correspondingly, the terminal device receives the first indication information, which indicates the mapping relationship between the first network slice identifier and the first target network slice group identifier in the first PLMN, and the first target network slice group identifier is the first network slice group identifier. 2. A network slice group identifier associated with the second network slice identifier in the PLMN, where the first network slice identifier and the second network slice identifier indicate the same network slice service.
需要说明的是，通常情况下，当多个运营商处于MOCN模式时，接入网设备能够知道多个运营商中每个运营商配置的PLMN中的网络切片组的相关信息。此外，为了进行通信，接入网设备通常需要将多个PLMN中每个PLMN的网络切片组的相关信息发送给核心网设备，以使得核心网设备可以知道每个PLMN中的网络切片组的相关信息。 It should be noted that, usually, when multiple operators are in MOCN mode, the access network device can know the relevant information of the network slicing group in the PLMN configured by each of the multiple operators. In addition, in order to communicate, the access network device usually needs to send the relevant information of the network slicing group of each PLMN in multiple PLMNs to the core network device, so that the core network device can know the relevant information of the network slicing group in each PLMN. information.
因此，在执行本步骤之前，本实施例中的方法还包括S210：接入网设备向核心网设备发送第一信息，所述第一信息包括N个公共陆地移动网PLMN中每个PLMN的网络切片组标识、与每个PLMN中的每个网络切片组标识关联的网络切片标识，N个PLMN中包括第一PLMN和第二PLMN，N为正整数。也就是说，每个运营商配置的PLMN中的网络切片组的相关信息可以包括：为每个网络切片业务配置的网络切片标识、为每个网络切片标识关联的网络切片组标识等。Therefore, before executing this step, the method in this embodiment also includes S210: the access network device sends first information to the core network device, where the first information includes the network of each PLMN of the N public land mobile network PLMNs. Slice group identifier, network slice identifier associated with each network slice group identifier in each PLMN. The N PLMNs include the first PLMN and the second PLMN, and N is a positive integer. That is to say, the relevant information of the network slice group in the PLMN configured by each operator may include: the network slice identifier configured for each network slice service, the network slice group identifier associated with each network slice identifier, etc.
应理解，不同的运营商配置的PLMN中的网络切片的相关信息可能是不一样的。现以两个运营商网络为例进行说明。It should be understood that the relevant information of network slices in PLMNs configured by different operators may be different. Now we take two operator networks as an example for explanation.
例如，在第一种示例中，假设现在包括4个业务，假设称为第一网络切片业务、第二网络切片业务、第三网络切片业务和第四网络切片业务。对于第一个运营商网络，配置的网络切片组的相关信息为：第一网络切片业务的网络切片标识为slice1、第二网络切片业务的网络切片标识为slice2、第三网络切片业务的网络切片标识为slice3和第四网络切片业务的网络切片标识为slice4，其中，slice1和slice2与网络切片组标识slice group1关联，slice3和slice4与网络切片组标识slice group2关联。而对于第二个运营商网络，配置的网络切片组的相关信息为：第一网络切片业务的网络切片标识为slice1、第二网络切片业务的网络切片标识为slice2、第三网络切片业务的网络切片标识为slice3和第四网络切片业务的网络切片标识为slice4，其中，slice1和slice2与网络切片组标识slice group2关联，slice3和slice4与网络切片组标识slice group1关联。在此说明的是，该示例仅是用于说明不同的运营商配置的网络切片组标识为不同的一种示例，不构成本申请的限制。For example, in the first example, it is assumed that four services are now included, which are assumed to be called the first network slice service, the second network slice service, the third network slice service and the fourth network slice service. For the first operator network, the relevant information of the configured network slice group is: the network slice identifier of the first network slice service is slice1, the network slice identifier of the second network slice service is slice2, and the network slice of the third network slice service The network slice identified as slice3 and the fourth network slice service are identified as slice4, where slice1 and slice2 are associated with the network slice group identifier slice group1, and slice3 and slice4 are associated with the network slice group identifier slice group2. For the second operator network, the relevant information of the configured network slice group is: the network slice identifier of the first network slice service is slice1, the network slice identifier of the second network slice service is slice2, and the network slice identifier of the third network slice service is slice2. The slice identifier is slice3 and the network slice identifier of the fourth network slice service is slice4, where slice1 and slice2 are associated with the network slice group identifier slice group2, and slice3 and slice4 are associated with the network slice group identifier slice group1. It should be noted that this example is only an example used to illustrate that network slice group identifiers configured by different operators are different, and does not constitute a limitation of this application.
例如，在另一种示例中，不同运营商对于同一个网络切片业务配置的网络切片标识也可能是不一样的。For example, in another example, different operators may configure different network slice identifiers for the same network slice service.
假设现在包括4个业务，假设称为第一网络切片业务、第二网络切片业务、第三网络切片业务和第四网络切片业务。对于第一个运营商网络，配置的网络切片组的相关信息为：第一网络切片业务的网络切片标识为slice1、第二网络切片业务的网络切片标识为slice2、第三网络切片业务的网络切片标识为slice3和第四网络切片业务的网络切片标识为slice4，其中，slice1和slice2与网络切片组标识slice group1关联，slice3和slice4与网络切片组标识slice group2关联。而对于第二个运营商网络，配置的网络切片组的相关信息为：第一网络切片业务的网络切片标识为slice3、第二网络切片业务的网络切片标识为slice4、第三网络切片业务的网络切片标识为slice1和第四网络切片业务的网络切片标识为slice2，其中，slice3和slice4与网络切片组标识slice group1关联，slice1和slice2与网络切片组标识slice group2关联。在此说明的是，该示例仅是用于说明不同的运营商配置的网络切片标识为不同的一种示例，不构成本申请的限制。It is assumed that four services are now included, which are assumed to be called the first network slice service, the second network slice service, the third network slice service and the fourth network slice service. For the first operator network, the relevant information of the configured network slice group is: the network slice identifier of the first network slice service is slice1, the network slice identifier of the second network slice service is slice2, and the network slice of the third network slice service The network slice identified as slice3 and the fourth network slice service are identified as slice4, where slice1 and slice2 are associated with the network slice group identifier slice group1, and slice3 and slice4 are associated with the network slice group identifier slice group2. For the second operator network, the relevant information of the configured network slice group is: the network slice identifier of the first network slice service is slice3, the network slice identifier of the second network slice service is slice4, and the network slice identifier of the third network slice service is slice4. The slice identifier is slice1 and the network slice identifier of the fourth network slice service is slice2. Among them, slice3 and slice4 are associated with the network slice group identifier slice group1, and slice1 and slice2 are associated with the network slice group identifier slice group2. It should be noted here that this example is only an example used to illustrate that network slice identifiers configured by different operators are different, and does not constitute a limitation of this application.
应理解，不同的运营商配置的PLMN中的网络切片组的相关信息不一样，使得多个PLMN共享接入网设备的某个小区时，由于接入网设备通常在广播基于网络切片组标识的参数信息时，是参考的多个PLMN中的一个PLMN(即主PLMN)，这样，会导致该小区中选择从PLMN的终端设备从广播中获取到的基于网络切片组标识的参数信息可能是错误的，进一步地导致终端设备无法执行相应的操作。以上述第一种示例中的两个运营商配置的网络切片组的相关信息为例。若该两个运营商对应的两个PLMN网络共享小区A，且接入网设备在广播时使用的基于网络切片组的相关信息是参考的第一个运营商，此时，对于该小 区A中选择第二个运营商的PLMN的终端设备1而言，如果终端设备1要进行小区重选，则终端设备1会先确定可能发起的业务为第一网络切片业务，且该第一网络切片业务对应的网络切片标识为slice1和对应的网络切片组标识为slice group2后，终端设备1会从广播消息中获取基于slice group2的小区重选优先级参数信息。然而，应理解，广播消息中的基于slice group2的小区重选优先级参数信息是参考的第一个运营商配置的网络切片组标识，而第一个运营商配置的slice group2中包括的slice3和slice4分别指示第三网络切片业务和第四网络切片业务，而不指示第一网络切片业务，导致终端设备的小区重选行为可能存在以下两种情况：1)终端设备可以基于这个不对应的小区重选优先级参数信息进行小区重选，只要该小区重选优先级参数信息中指示的频点终端设备支持，但是，终端设备基于该小区重选优先级参数信息进行小区重选的问题在于：能重选成功但并不是终端的理想行为。2)由于网络指示信息的不对应使得终端重选失败。It should be understood that the relevant information of network slice groups in PLMNs configured by different operators is different. When multiple PLMNs share a certain cell of the access network device, the access network device usually broadcasts the network slice group based on the network slice group identifier. When parameter information is referenced, it refers to one PLMN (i.e., the primary PLMN) among multiple PLMNs. In this way, the parameter information based on the network slice group identifier obtained from the broadcast by the terminal device in the cell that selects the slave PLMN may be incorrect. , further causing the terminal device to be unable to perform corresponding operations. Take the related information of network slicing groups configured by two operators in the first example above as an example. If the two PLMN networks corresponding to the two operators share cell A, and the relevant information based on the network slicing group used by the access network equipment when broadcasting is the first operator referenced, at this time, for the small For terminal equipment 1 that selects the second operator's PLMN in area A, if terminal equipment 1 wants to perform cell reselection, terminal equipment 1 will first determine that the service that may be initiated is the first network slicing service, and the first network slicing service After the network slice identifier corresponding to the network slicing service is slice1 and the corresponding network slice group identifier is slice group2, terminal device 1 will obtain the cell reselection priority parameter information based on slice group2 from the broadcast message. However, it should be understood that the cell reselection priority parameter information based on slice group2 in the broadcast message refers to the network slice group identifier configured by the first operator, and the slice3 and slice included in slice group2 configured by the first operator slice4 indicates the third network slice service and the fourth network slice service respectively, but does not indicate the first network slice service. As a result, the cell reselection behavior of the terminal device may have the following two situations: 1) The terminal device may be based on this non-corresponding cell. The reselection priority parameter information is used to perform cell reselection, as long as the frequency point terminal device indicated in the cell reselection priority parameter information supports it. However, the problem with the terminal device performing cell reselection based on the cell reselection priority parameter information is: Reselection can be successful but is not ideal behavior for the terminal. 2) Terminal reselection fails due to mismatch in network indication information.
由上述可知，核心网设备基于接入网设备发送的第一信息，可以获知每个运营商配置的网络切片组的相关信息。因此，对于核心网设备，当接收到接入网设备发送的第一标识信息和第二标识信息时，可以确定出第一PLMN中的任意一个网络切片标识指示的网络切片业务是否在第二PLMN中也具有网络切片标识，以及若某个网络切片业务(本申请中也称为第一网络切片业务)在第二PLMN中时具有网络切片标识(本申请中也称为第二网络切片标识)时，核心网设备可以进一步地根据第二PLMN中的网络切片组标识与网络切片标识之间的映射关系，确定出第一网络切片业务在第二PLMN中的网络切片组标识(本申请中也称为第一目标网络切片组标识)。It can be seen from the above that the core network device can learn the relevant information of the network slicing group configured by each operator based on the first information sent by the access network device. Therefore, for the core network device, when receiving the first identification information and the second identification information sent by the access network device, it can be determined whether the network slice service indicated by any network slice identification in the first PLMN is in the second PLMN. There is also a network slice identifier in the PLMN, and if a certain network slice service (also called the first network slice service in this application) is in the second PLMN, it has a network slice identifier (also called the second network slice identifier in this application). When called the first target network slice group ID).
因此，本实施例中，若核心网设备确定出第一PLMN中的第一网络切片标识所指示的第一网络切片业务在第二PLMN中存在对应的第二网络切片标识时，向终端设备发送第一指示信息，所述第一指示信息用于指示第一PLMN中第一网络切片标识与第一目标网络切片组标识之间的映射关系，所述第一目标网络切片组标识为第二PLMN中与第二网络切片标识关联的网络切片组标识。Therefore, in this embodiment, if the core network device determines that the first network slice service indicated by the first network slice identifier in the first PLMN has a corresponding second network slice identifier in the second PLMN, it sends a message to the terminal device. First indication information, the first indication information is used to indicate the mapping relationship between the first network slice identifier and the first target network slice group identifier in the first PLMN, and the first target network slice group identifier is the second PLMN The network slice group identifier associated with the second network slice identifier in .
在第一种实施方案中，核心网设备发送的第一指示信息包括第一网络切片标识与所述第二网络切片标识之间的映射信息和所述第二PLMN中所述第二网络切片标识与所述第一目标网络切片组标识之间的映射信息。In the first embodiment, the first indication information sent by the core network device includes mapping information between the first network slice identifier and the second network slice identifier and the second network slice identifier in the second PLMN. Mapping information with the first target network slice group identifier.
可以理解的是，在该实施方案中，如果选择第一PLMN的终端设备想要发起某个应用程序(application，APP)业务，可以通过网络切片选择策略(network slice selection policy，NSSP)得到该APP业务对应的切片标识为第一PLMN中的第一网络切片标识(例如slice1)，再根据第一指示信息，得到第一PLMN中的slice1与第二PLMN中第二网络切片标识(例如slice2)对应，最后再得到第二PLMN中的slice2与第二PLMN内的第一目标网络切片组标识(例如slice group2)关联。即可以得到第一PLMN内的slice1对应第二PLMN中的slice group2。It can be understood that in this implementation, if the terminal device that selects the first PLMN wants to initiate an application (APP) service, the APP can be obtained through the network slice selection policy (NSSP) The slice identifier corresponding to the service is the first network slice identifier (for example, slice1) in the first PLMN, and then according to the first indication information, the correspondence between slice1 in the first PLMN and the second network slice identifier (for example, slice2) in the second PLMN is obtained. , and finally obtain the association between slice2 in the second PLMN and the first target network slice group identifier (for example, slice group2) in the second PLMN. That is, it can be obtained that slice1 in the first PLMN corresponds to slice group2 in the second PLMN.
在第二种实施方案中，核心网设备发送的第一指示信息可以直接包括第一网络切片标识与第一目标网络切片组标识之间的映射信息。In the second implementation, the first indication information sent by the core network device may directly include mapping information between the first network slice identifier and the first target network slice group identifier.
可以理解的是，在该实施方案中，如果终端设备想要发起某个APP业务，可以通过NSSP得到该APP业务对应的切片标识为第一PLMN中的第一网络切片标识(例如slice1)，然后再根据第一指示信息直接得到第一PLMN中的slice1对应第二PLMN中的slice group2。 It can be understood that in this embodiment, if the terminal device wants to initiate an APP service, the slice identifier corresponding to the APP service can be obtained through NSSP as the first network slice identifier (for example, slice1) in the first PLMN, and then Then, it is directly obtained according to the first indication information that slice1 in the first PLMN corresponds to slice group2 in the second PLMN.
可以看出，上述第二种实施方案与第一种实施方案的区别在于：第二种实施方案是核心网设备根据第一PLMN中的网络切片标识与第二PLMN中的网络切片标识之间的映射关系、以及第二PLMN中的网络切片组的标识信息先完成第一PLMN中网络切片标识与第二PLMN中网络切片组标识的映射关系的推导，然后再将其发送给终端设备。It can be seen that the difference between the above-mentioned second implementation and the first implementation is that: in the second implementation, the core network device is based on the difference between the network slice identifier in the first PLMN and the network slice identifier in the second PLMN. The mapping relationship and the identification information of the network slice group in the second PLMN first complete the derivation of the mapping relationship between the network slice identifier in the first PLMN and the network slice group identifier in the second PLMN, and then send it to the terminal device.
S218，接入网设备广播第二PLMN中的基于网络切片组标识的参数信息，相应的，终端设备接收接入网设备广播的第二PLMN中的基于网络切片组标识的参数信息。S218: The access network device broadcasts the parameter information based on the network slicing group identifier in the second PLMN. Correspondingly, the terminal device receives the parameter information based on the network slicing group identifier in the second PLMN broadcast by the access network device.
本实施例中，接入网设备广播的基于网络切片组标识的参数信息是参考的第二PLMN。In this embodiment, the parameter information based on the network slice group identifier broadcast by the access network device is the reference second PLMN.
在此说明的是，本申请实施例对S216和S218的前后顺序不做限制。即，本申请实施例中，对接入网设备是先向核心网设备发送第一标识信息和第二标识信息，还是先广播的具体时间关系不做限制，例如可以是先向核心网设备发送第一标识信息和第二标识信息再广播，也可以是先广播再向核心网设备发送第一标识信息和第二标识信息，又或者可以同时进行。It should be noted that the embodiment of the present application does not limit the order of S216 and S218. That is, in the embodiment of the present application, there is no restriction on the specific time relationship of whether the access network device sends the first identification information and the second identification information to the core network device first, or broadcasts it first. For example, it can be sent to the core network device first. The first identification information and the second identification information are then broadcast, or they may be broadcast first and then the first identification information and the second identification information are sent to the core network device, or they may be performed simultaneously.
S220，终端设备在确定第一目标业务对应的网络切片标识为第一网络切片标识时，从广播中获取基于第一目标网络切片组标识的参数信息。S220: When determining that the network slice identifier corresponding to the first target service is the first network slice identifier, the terminal device obtains parameter information based on the first target network slice group identifier from the broadcast.
本实施例中，当终端设备确定出第一目标业务对应的网络切片标识为第一网络切片标识时，由于核心网设备向终端设备发送了用于指示第一PLMN中第一网络切片标识与第二PLMN中的第一目标网络切片组标识之间的映射关系的第一指示信息，因此，终端设备可以基于第一指示信息确定出应该从广播中获取基于第一目标网络切片组标识的参数信息。In this embodiment, when the terminal device determines that the network slice identifier corresponding to the first target service is the first network slice identifier, because the core network device sends to the terminal device a message indicating that the first network slice identifier in the first PLMN is the same as the first network slice identifier. The first indication information of the mapping relationship between the first target network slice group identifiers in the two PLMNs. Therefore, the terminal device can determine based on the first indication information that the parameter information based on the first target network slice group identifier should be obtained from the broadcast. .
具体地，由S216可知，核心网设备发送的第一指示信息的一种类型为：直接包括第一网络切片标识与第一目标网络切片组标识之间的映射信息。可以理解的是，在该实施方案中，终端设备从广播中获取基于第一目标网络切片组标识的参数信息的过程为：终端设备可以先通过NSSP得到第一目标业务对应的网络切片标识为第一网络切片标识，然后再根据第一指示信息直接得到第一网络切片标识对应第二PLMN中的第一目标网络切片组标识，并从广播中获取基于第一目标网络切片组标识的参数信息。Specifically, it can be seen from S216 that one type of first indication information sent by the core network device is: directly including mapping information between the first network slice identifier and the first target network slice group identifier. It can be understood that in this embodiment, the process for the terminal device to obtain the parameter information based on the first target network slice group identifier from the broadcast is: the terminal device can first obtain the network slice identifier corresponding to the first target service through NSSP. a network slice identifier, and then directly obtain the first network slice identifier corresponding to the first target network slice group identifier in the second PLMN according to the first indication information, and obtain parameter information based on the first target network slice group identifier from the broadcast.
具体地，由S216可知，核心网设备发送的第一指示信息的另一种类型为：包括第一网络切片标识与第二网络切片标识之间的映射信息和第二PLMN中第二网络切片标识与第一目标网络切片组标识之间的映射信息。可以理解的是，在该实施方案中，终端设备从广播中获取基于第一目标网络切片组标识的参数信息的过程为：终端设备可以先通过NSSP得到第一目标业务对应的网络切片标识为第一网络切片标识，然后再根据第一指示信息，先得到第一网络切片标识对应第二PLMN中的第二网络切片标识，然后在基于第二网络切片标识与第一目标网络切片组标识之间的映射信息得到第一目标网络切片组标识，并从广播中获取基于第一目标网络切片组标识的参数信息。Specifically, it can be seen from S216 that another type of first indication information sent by the core network device is: including mapping information between the first network slice identifier and the second network slice identifier and the second network slice identifier in the second PLMN. Mapping information with the first target network slice group identifier. It can be understood that in this embodiment, the process for the terminal device to obtain the parameter information based on the first target network slice group identifier from the broadcast is: the terminal device can first obtain the network slice identifier corresponding to the first target service through NSSP. A network slice identifier, and then according to the first instruction information, first obtain the first network slice identifier corresponding to the second network slice identifier in the second PLMN, and then obtain the first network slice identifier based on the second network slice identifier and the first target network slice group identifier. The mapping information obtains the first target network slice group identifier, and obtains parameter information based on the first target network slice group identifier from the broadcast.
在此说明的是，本申请实施例对终端设备从广播中获取基于网络切片组标识的参数信息的具体内容不做限制。It should be noted that this embodiment of the present application does not limit the specific content of the terminal device obtaining parameter information based on the network slice group identifier from the broadcast.
例如，在小区重选场景中，终端设备需要获取基于网络切片组标识的小区重选优先级参数信息。更具体地，本申请中，若为小区重选场景，则接入网设备可以广播用于小区重选的基于网络切片组标识的小区重选优先级参数信息，选择第一PLMN的终端设备的非接入层(non-access stratum，NAS)可以先根据第一信息得到第一目标业务在第二PLMN中对应的是第一目标网络切片组标识，然后终端设备的NAS可以将该第一目标网络切片组 标识发送给终端设备的接入层(access stratum，AS)并执行小区重选流程。For example, in a cell reselection scenario, the terminal device needs to obtain cell reselection priority parameter information based on the network slice group identifier. More specifically, in this application, if it is a cell reselection scenario, the access network device can broadcast the cell reselection priority parameter information based on the network slice group identifier for cell reselection, and select the terminal device of the first PLMN. The non-access stratum (NAS) can first obtain the first target network slice group identifier corresponding to the first target service in the second PLMN based on the first information, and then the NAS of the terminal device can obtain the first target network slice group identifier. network slice group The identification is sent to the access stratum (AS) of the terminal device and the cell reselection process is performed.
又例如，在随机接入场景中，终端设备需要获取基于网络切片组标识的随机接入参数信息。更具体地，本申请中，若为随机接入场景，则接入网设备可以广播用于随机接入的基于网络切片组标识的随机接入参数信息，选择第一PLMN的终端设备的NAS可以先根据第一信息得到第一目标业务在第二PLMN中对应的是第一目标网络切片组标识，然后终端设备的NAS可以将该第一目标网络切片组标识发送给终端设备的AS并执行随机接入流程。For another example, in a random access scenario, the terminal device needs to obtain random access parameter information based on the network slice group identifier. More specifically, in this application, if it is a random access scenario, the access network device can broadcast random access parameter information based on the network slice group identifier for random access, and the NAS of the terminal device that selects the first PLMN can First, obtain the first target network slicing group identifier corresponding to the first target service in the second PLMN based on the first information. Then the NAS of the terminal device can send the first target network slicing group identifier to the AS of the terminal device and perform randomization. Access process.
在此说明的是，本申请中，可以是终端设备的NAS来执行根据第一指示信息，得到与第一网络切片标识对应的第一目标网络切片组标识的过程，也可以是终端设备的NAS先将第一指示信息发送给终端设备的AS，然后由终端设备的AS来执行根据第一指示信息，得到与第一网络切片标识对应的第一目标网络切片组标识的过程。It should be noted that in this application, the NAS of the terminal device may be used to perform the process of obtaining the first target network slice group identifier corresponding to the first network slice identifier according to the first instruction information, or it may be the NAS of the terminal device. The first instruction information is first sent to the AS of the terminal device, and then the AS of the terminal device performs a process of obtaining the first target network slice group identifier corresponding to the first network slice identifier according to the first instruction information.
本实施例提供的通信方法中，在第一PLMN与第二PLMN处于MOCN模式时，如果核心网设备确定出选择第一PLMN的终端设备中的第一网络切片标识与第二PLMN中的第二网络切片标识指示的是同一个网络切片业务，则本实施例的方法可以使得属于第一PLMN的终端设备在共享网络范围内基于第二PLMN的广播信息进行基于网络切片组标识的小区重选流程或随机接入流程。In the communication method provided by this embodiment, when the first PLMN and the second PLMN are in the MOCN mode, if the core network device determines that the first network slice identifier in the terminal device that selects the first PLMN is the same as the second network slice identifier in the second PLMN. If the network slice identifier indicates the same network slice service, the method of this embodiment can enable the terminal device belonging to the first PLMN to perform a cell reselection process based on the network slice group identifier based on the broadcast information of the second PLMN within the shared network range. or random access process.
可选地，本实施例中，终端设备还可能是选择第二PLMN的终端设备。可以理解的是，在这种情况下，本申请中的通信方法还可以包括：当接入网设备判断第一PLMN为第二PLMN时，向核心网设备发送第一标识信息；核心网设备接收第一标识信息后，核心网设备向终端设备发送第二PLMN中的网络切片组标识信息、以及第二PLMN中的每个网络切片组标识关联的网络切片标识；相应的，终端设备接收到核心网设备发送的第二PLMN中的网络切片组标识信息、以及第二PLMN中的每个网络切片组标识关联的网络切片标识后，终端设备可以直接从接入网设备广播的基于网络切片组标识的参数信息中获取目标参数信息以执行相应的操作。Optionally, in this embodiment, the terminal device may also be the terminal device that selects the second PLMN. It can be understood that in this case, the communication method in this application may also include: when the access network device determines that the first PLMN is the second PLMN, sending the first identification information to the core network device; the core network device receives After the first identification information, the core network device sends the network slice group identification information in the second PLMN and the network slice identification associated with each network slice group identification in the second PLMN to the terminal device; accordingly, the terminal device receives the core After the network device sends the network slice group identifier information in the second PLMN and the network slice identifier associated with each network slice group identifier in the second PLMN, the terminal device can directly broadcast the network slice group identifier from the access network device. Get the target parameter information from the parameter information to perform the corresponding operation.
以上，通过图2所示的实施例介绍了核心网设备如果可以确定出选择第一PLMN的终端设备中的第一网络切片标识与第二PLMN中的第二网络切片标识指示的是同一个网络切片业务的场景下，选择第一PLMN的终端设备如何从广播的消息中获取到正确的基于网络切片组标识的参数信息。Above, through the embodiment shown in Figure 2, it is introduced that if the core network device can determine that the first network slice identifier in the terminal device that selects the first PLMN and the second network slice identifier in the second PLMN indicate the same network In the scenario of slicing services, how does the terminal device that selects the first PLMN obtain the correct parameter information based on the network slicing group identifier from the broadcast message.
然而，在另一些场景中，对于选择第一PLMN的终端设备中的某个网络切片标识(本申请中也称为第三网络切片标识)，可能存在核心网设备在第二PLMN中找不到与第三网络切片标识指示的网络切片业务相同的网络切片标识(本申请中也称为第四网络切片标识)，进一步地，无法在第二PLMN中找到与第四网络切片标识关联的目标网络切片组标识(本申请中也称为第三目标网络切片组标识)的情况，或者，存在核心网设备在第二PLMN中找到了第四网络切片标识但第二PLMN中没有与第四网络切片标识关联的第三网络切片组标识的情况。可以理解的是，该两种情况均是指第一PLMN中的第三网络切片标识在第二PLMN中找不到对应的第三目标网络切片组的场景。还可以理解的是，在这种场景下，对于选择第一PLMN的终端设备，仍然无法基于接入网设备广播的基于第二PLMN中的网络切片组标识的参数信息执行相应的流程。However, in other scenarios, for a certain network slice identifier (also referred to as the third network slice identifier in this application) in the terminal device that selects the first PLMN, the core network device may not be found in the second PLMN. The same network slice identifier as the network slice service indicated by the third network slice identifier (also referred to as the fourth network slice identifier in this application). Furthermore, the target network associated with the fourth network slice identifier cannot be found in the second PLMN. Slice group identifier (also referred to as the third target network slice group identifier in this application), or there is a situation where the core network device finds the fourth network slice identifier in the second PLMN but the second PLMN does not match the fourth network slice identifier. Identifies the situation associated with the third network slice group identification. It can be understood that both of these situations refer to the scenario where the third network slice identifier in the first PLMN cannot find the corresponding third target network slice group in the second PLMN. It can also be understood that in this scenario, for the terminal device that selects the first PLMN, it is still unable to perform the corresponding process based on the parameter information based on the network slice group identifier in the second PLMN broadcast by the access network device.
鉴于此，本申请结合图3，说明一种在MOCN场景下，对于选择第一PLMN的终端 设备中的第三网络切片标识，当核心网设备在第二PLMN中找不到网络切片组标识时，如何让终端设备获取到基于网络切片组标识的参数信息以执行相应的流程。In view of this, this application combines Figure 3 to illustrate a method for a terminal that selects the first PLMN in the MOCN scenario. The third network slice identifier in the device. When the core network device cannot find the network slice group identifier in the second PLMN, how can the terminal device obtain the parameter information based on the network slice group identifier to execute the corresponding process.
如图3所示，本实施的通信方法包括：S310、S320、S330、S340、S350和S360。As shown in Figure 3, the communication method in this implementation includes: S310, S320, S330, S340, S350 and S360.
S310，接入网设备向核心网设备发送第一信息，所述第一信息包括N个公共陆地移动网PLMN中每个PLMN的网络切片组标识、与每个PLMN中的每个网络切片组标识关联的网络切片标识，N个PLMN中包括第一PLMN和第二PLMN，N为正整数。S310. The access network device sends the first information to the core network device. The first information includes the network slicing group identifier of each PLMN in the N public land mobile network PLMN and the network slicing group identifier of each PLMN. The associated network slice identifier. The N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
其中，该步骤的详细描述可以参考图2所示实施例中的S210中的描述，此处不再赘述。For a detailed description of this step, reference may be made to the description in S210 in the embodiment shown in FIG. 2 , which will not be described again here.
S320，终端设备发送第一标识信息，所述第一标识信息指示终端设备选择的第一PLMN；相应的，接入网设备接收第一标识信息。S320: The terminal device sends first identification information, where the first identification information indicates the first PLMN selected by the terminal device; accordingly, the access network device receives the first identification information.
S330，接入网设备判断第一PLMN不是第二PLMN时，接入网设备向核心网设备发送第一标识信息和第二标识信息，相应的，核心网设备接收第一标识信息和第二标识信息；所述第二标识信息指示接入网设备在广播基于网络切片组标识的参数信息时使用的第二PLMN。S330. When the access network device determines that the first PLMN is not the second PLMN, the access network device sends the first identification information and the second identification information to the core network device. Correspondingly, the core network device receives the first identification information and the second identification information. Information; the second identification information indicates the second PLMN used by the access network device when broadcasting parameter information based on the network slice group identification.
其中，S320和S330的详细描述可以参考图2所示实施例中的描述，此处不再赘述。For detailed descriptions of S320 and S330, reference may be made to the description in the embodiment shown in FIG. 2 and will not be described again here.
S340，核心网设备向终端设备发送第一指示信息和第二指示信息，相应的，终端设备接收第一指示信息和第二指示信息，第一指示信息指示第一PLMN中第一网络切片标识与第一目标网络切片组标识之间的映射关系，第二指示信息包括第三网络切片标识与第二目标网络切片组标识之间的映射关系，第一目标网络切片组标识为第二PLMN中与第二网络切片标识关联的网络切片组标识，第一网络切片标识与第二网络切片标识指示相同的网络切片业务，第二目标网络切片组标识为第一PLMN中与第三网络切片标识关联的网络切片组标识。S340. The core network device sends the first indication information and the second indication information to the terminal device. Correspondingly, the terminal device receives the first indication information and the second indication information. The first indication information indicates that the first network slice identifier in the first PLMN is the same as the first indication information. The mapping relationship between the first target network slice group identifier, the second indication information includes the mapping relationship between the third network slice identifier and the second target network slice group identifier, the first target network slice group identifier is in the second PLMN and The network slice group identifier associated with the second network slice identifier. The first network slice identifier and the second network slice identifier indicate the same network slice service. The second target network slice group identifier is the network slice group identifier associated with the third network slice identifier in the first PLMN. Network slice group ID.
其中，有关核心网设备向终端设备发送第一指示信息的相关内容可以参考图2所示实施例中的描述，该实施例中不再赘述。For information about the core network device sending the first instruction information to the terminal device, reference may be made to the description in the embodiment shown in FIG. 2 , which will not be described again in this embodiment.
本实施例中，当核心网设备确定第一PLMN中的第三网络切片标识指示的网络切片业务在第二PLMN中不存在对应的网络切片组标识时，为了能够让终端设备明确第一PLMN中的第三网络切片标识关联的是第二目标网络切片组标识，核心网设备可以向终端设备发送一个指示信息(本实施例中也称为第二指示信息)，以向终端设备指示第三网络切片标识与第一PLMN中的第二目标网络切片组标识具有映射关系。In this embodiment, when the core network device determines that the network slice service indicated by the third network slice identifier in the first PLMN does not have a corresponding network slice group identifier in the second PLMN, in order to enable the terminal device to clearly identify the network slice group identifier in the first PLMN, The third network slice identifier is associated with the second target network slice group identifier. The core network device may send an indication message (also called the second indication information in this embodiment) to the terminal device to indicate the third network to the terminal device. The slice identifier has a mapping relationship with the second target network slice group identifier in the first PLMN.
可以理解的是，在该实施方案中，如果选择第一PLMN的终端设备发起的某个应用程序(application，APP)业务，在通过网络切片选择策略(network slice selection policy，NSSP)得到对应的网络切片标识为第三网络切片标识(例如slice3)后，如果第一指示信息中没有指示第一PLMN中的slice3与第二PLMN中的网络切片组标识之间的映射关系，终端设备便根据第二指示信息得到第一PLMN中的slice3对应第一PLMN中的第二目标网络切片组标识(例如slice group2)。It can be understood that in this implementation, if a certain application (APP) service initiated by the terminal device of the first PLMN is selected, the corresponding network is obtained through the network slice selection policy (NSSP). After the slice identifier is the third network slice identifier (for example, slice3), if the first indication information does not indicate the mapping relationship between slice3 in the first PLMN and the network slice group identifier in the second PLMN, the terminal device will The indication information obtains that slice3 in the first PLMN corresponds to the second target network slice group identifier (for example, slice group2) in the first PLMN.
S350，接入网设备广播基于第二PLMN中的网络切片组标识的参数信息和/或第一PLMN中基于第二目标网络切片组标识的参数信息。S350: The access network device broadcasts parameter information based on the network slice group identifier in the second PLMN and/or parameter information based on the second target network slice group identifier in the first PLMN.
本实施例中，若第一PLMN中的第三网络切片标识指示的网络切片业务(例如称为第二目标业务)在第二PLMN中找不到对应的网络切片标识以及网络切片组标识，即第二目 标业务仅被第一PLMN支持，在这种情况下，为了使得支持第二目标业务的终端设备能够获取到基于网络切片组标识的参数信息以完成相应的操作时，本实施例中，接入网设备还广播基于第一PLMN中的第二目标网络切片组标识的参数信息。In this embodiment, if the network slice service (for example, called the second target service) indicated by the third network slice identifier in the first PLMN cannot find the corresponding network slice identifier and network slice group identifier in the second PLMN, that is, Second item The target service is only supported by the first PLMN. In this case, in order to enable the terminal device that supports the second target service to obtain the parameter information based on the network slice group identifier to complete the corresponding operation, in this embodiment, the access The network device also broadcasts parameter information based on the second target network slice group identification in the first PLMN.
可选地，需要理解的是，在接入网设备广播基于第二PLMN中的网络切片组标识的参数信息以及基于第一PLMN中的第二目标网络切片组标识的参数信息时，考虑到第一PLMN中的第二目标网络切片组标识与第二PLMN中的某个网络切片组标识可能相同，或者邻区非所有运营商共享的场景，本实施例中，还可以在广播基于第二PLMN中的网络切片组标识的参数信息和/或基于第一PLMN中的第二目标网络切片组标识的参数信息时，向终端设备发送指示信息(本申请中也称为第三指示信息或有效指示)，以使得终端设备可以区分广播的基于网络切片组标识信息中哪些适用于第一PLMN，哪些适用于第二PLMN。Optionally, it should be understood that when the access network device broadcasts parameter information based on the network slice group identifier in the second PLMN and parameter information based on the second target network slice group identifier in the first PLMN, the third The second target network slice group identifier in one PLMN may be the same as a certain network slice group identifier in the second PLMN, or the neighboring cells are not shared by all operators. In this embodiment, the broadcast based on the second PLMN When the parameter information of the network slice group identifier in the first PLMN is based on the parameter information of the second target network slice group identifier in the first PLMN, indication information (also referred to as third indication information or valid indication in this application) is sent to the terminal device. ), so that the terminal device can distinguish which of the broadcast network slice group identification information is applicable to the first PLMN and which is applicable to the second PLMN.
在一种可实现方式中，第三指示信息可以通过PLMN标识/PLMN在SIB1广播的PLMN标识信息列表(例如plmn-IdentityInfoList标准信元)或非公共网络标识信息列表(例如npn-IdentityInfoList标准信元)中的索引/服务小区内不同PLMN所属TAC、TAI来指示基于网络切片组标识的参数信息适用或不适用的PLMN。In an implementable manner, the third indication information may be a PLMN identity/PLMN identity information list broadcast by PLMN in SIB1 (for example, plmn-IdentityInfoList standard cell) or a non-public network identity information list (for example, npn-IdentityInfoList standard cell). ) in the index/TAC and TAI to which different PLMNs in the serving cell belong to indicate whether the parameter information based on the network slice group identification is applicable or not applicable to the PLMN.
S360，终端设备从广播中获取目标网络切片组表示的参数信息。S360: The terminal device obtains parameter information represented by the target network slice group from the broadcast.
具体地，终端设备在确定第一目标业务对应的网络切片标识为第一网络切片标识时，从广播中获取基于第二PLMN中的第一目标网络切片组标识的参数信息；或者，当终端设备确定第二目标业务对应的网络切片标识为第三网络切片标识时，从广播中获取基于第一PLMN中的第二目标网络切片组标识的参数信息。Specifically, when the terminal device determines that the network slice identifier corresponding to the first target service is the first network slice identifier, the terminal device obtains parameter information based on the first target network slice group identifier in the second PLMN from the broadcast; or, when the terminal device When it is determined that the network slice identifier corresponding to the second target service is the third network slice identifier, parameter information based on the second target network slice group identifier in the first PLMN is obtained from the broadcast.
其中，有关在确定第一目标业务对应的网络切片标识为第一网络切片标识时，从广播中获取基于第二PLMN中的第一目标网络切片组标识的参数信息的详细描述可以参考图2所示实施例中的描述，此处不再赘述。For a detailed description of obtaining parameter information based on the first target network slice group identifier in the second PLMN from the broadcast when it is determined that the network slice identifier corresponding to the first target service is the first network slice identifier, please refer to Figure 2 The description in the embodiment is not repeated here.
本实施例中，在一种可能的场景中，当终端设备在确定第二目标业务对应的网络切片标识为第三网络切片标识时，若第二PLMN中没有与第一PLMN中的第二目标网络切片组标识相同的网络切片组标识，此时，终端设备会从广播中获取基于第一PLMN中的第二目标网络切片组标识的参数信息。在另一种可能的场景中，当终端设备在确定第二目标业务对应的网络切片标识为第三网络切片标识时，如果第二PLMN中存在与第一PLMN中的第二目标网络切片组标识相同的网络切片组标识，此时，终端设备可以基于有效指示，从广播中获取基于第一PLMN中的第二目标网络切片组标识的参数信息。In this embodiment, in a possible scenario, when the terminal device determines that the network slice identifier corresponding to the second target service is the third network slice identifier, if the second PLMN does not have the same second target service as the first PLMN, The network slicing group identifier has the same network slicing group identifier. At this time, the terminal device will obtain parameter information based on the second target network slicing group identifier in the first PLMN from the broadcast. In another possible scenario, when the terminal device determines that the network slice identifier corresponding to the second target service is the third network slice identifier, if the second target network slice group identifier in the first PLMN exists in the second PLMN The same network slice group identifier, at this time, the terminal device can obtain parameter information based on the second target network slice group identifier in the first PLMN from the broadcast based on the valid indication.
本实施例提供的通信方法，可以适用于从PLMN支持的网络切片标识在主PLMN中找不到对应的网络切片标识信息以及网络切片组标识信息的场景或邻区非所有运营商共享的场景。具体地，本实施例中，可以使得属于从PLMN的终端设备在共享网络的范围内根据主PLMN的广播信息和/或从PLMN仅支持的网络切片标识对应的网络切片组标识的参数信息，和/或接入网设备的指示(可选地)来执行基于网络切片组标识的相应操作。The communication method provided in this embodiment can be applied to scenarios where the network slice identifier supported by the slave PLMN cannot find the corresponding network slice identifier information and network slice group identifier information in the primary PLMN, or in scenarios where neighboring cells are not shared by all operators. Specifically, in this embodiment, the terminal device belonging to the slave PLMN can be configured to obtain the parameter information of the network slice group identifier corresponding to the network slice group identifier only supported by the slave PLMN within the scope of the shared network based on the broadcast information of the master PLMN and/or the slave PLMN. /or instructions from the access network device (optionally) to perform corresponding operations based on the network slice group identification.
更具体地，本申请中，选择第一PLMN的终端设备在发起某个业务时，在确定出该某个业务对应的网络切片标识后，先基于第一指示信息来确定第二PLMN中是否包括与该某个业务对应的网络切片组标识(第一目标网络切片组标识)，如果基于第一指示信息找到对应的第一目标网络切片组标识，则从广播中获取基于第二PLMN中的第一目标网络切片 组标识的参数信息。而如果没有找到对应的网络切片组标识，再基于第二指示信息确定该某个业务在第一PLMN中的网络切片组标识(第二目标网络切片组标识)，并从广播中获取基于第一PLMN中的第二目标网络切片组标识的参数信息。More specifically, in this application, when a terminal device that selects the first PLMN initiates a certain service, after determining the network slice identifier corresponding to the certain service, it first determines whether the second PLMN includes the service based on the first indication information. The network slice group identifier corresponding to the certain service (the first target network slice group identifier). If the corresponding first target network slice group identifier is found based on the first indication information, the network slice group identifier based on the first target network slice group identifier in the second PLMN is obtained from the broadcast. a target network slice Parameter information for group identification. If the corresponding network slice group identifier is not found, the network slice group identifier (the second target network slice group identifier) of the certain service in the first PLMN is determined based on the second indication information, and the network slice group identifier based on the first target network slice group identifier is obtained from the broadcast. Parameter information of the second target network slice group identifier in the PLMN.
作为一个可选地实施例，本申请实施例中，接入网设备还可以按需广播或者以单播的方式来向终端设备发送基于目标网络切片组标识的参数信息。As an optional embodiment, in this embodiment of the present application, the access network device may also broadcast on demand or send parameter information based on the target network slicing group identifier to the terminal device in a unicast manner.
具体地，如图4所示，本实施的通信方法包括：S410、S420、S430、S440、S450、S460和S470。Specifically, as shown in Figure 4, the communication method of this implementation includes: S410, S420, S430, S440, S450, S460 and S470.
在此说明的是，该实施例中以终端设备需要基于网络切片组标识的参数信息进行小区重选或基于网络切片组标识的参数信息进行随机接入为例进行说明。It is explained here that in this embodiment, the terminal device needs to perform cell reselection based on the parameter information of the network slicing group identifier or perform random access based on the parameter information of the network slicing group identifier as an example.
S410，接入网设备向核心网设备发送第一信息，所述第一信息包括N个公共陆地移动网PLMN中每个PLMN的网络切片组标识、与每个PLMN中的每个网络切片组标识关联的网络切片标识，N个PLMN中包括第一PLMN和第二PLMN，N为正整数。S410. The access network device sends the first information to the core network device. The first information includes the network slicing group identifier of each PLMN in the N public land mobile network PLMN and the network slicing group identifier of each PLMN. The associated network slice identifier. The N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
其中，该步骤的详细描述可以参考图2所示实施例中的S210中的描述，此处不再赘述。For a detailed description of this step, reference may be made to the description in S210 in the embodiment shown in FIG. 2 , which will not be described again here.
S420，终端设备发起随机接入或者连接态时，发送第一标识信息和请求的***消息的类型，其中，第一标识信息指示终端设备选择的第一PLMN。S420: When the terminal device initiates random access or a connected state, it sends first identification information and the type of the requested system message, where the first identification information indicates the first PLMN selected by the terminal device.
在一种实现方式中，可以通过消息1(MSG1)/消息3(MSG3)/专用SIB请求(DedicateSIBRequest)携带第一标识信息和请求的***消息的类型。In one implementation, the first identification information and the type of the requested system message may be carried through message 1 (MSG1)/message 3 (MSG3)/dedicated SIB request (DedicateSIBRequest).
例如，***消息请求的类型可以是请求现有的***消息块1(system information block1，SIB1)；或者，可以是请求现有的***消息块16(system information block16，SIB16)；又或者，可以是请求新的SIB。For example, the type of system message request may be to request the existing system information block 1 (SIB1); or it may be to request the existing system information block 16 (SIB16); or it may be Request a new SIB.
S430，当接入网设备判断第一PLMN为从PLMN时，接入网设备基于从PLMN中的每个网络切片组标识信息以及与每个网络切片组标识关联的网络切片标识，按照请求的***消息的类型生成基于从PLMN的网络切片组标识的参数信息。S430. When the access network device determines that the first PLMN is the slave PLMN, the access network device determines, based on the identification information of each network slice group in the slave PLMN and the network slice identifier associated with each network slice group identifier, according to the requested system The type of message generated is based on the parameter information identified from the network slice group of the PLMN.
例如，在一种可能的实现方式中，当终端设备请求的是现有的SIB1或的SIB16，则接入网设备可以根据从PLMN中的每个网络切片组标识信息以及与每个网络切片组标识关联的网络切片标识，在不改变SIB1或的SIB16的信令设计的情况下，生成基于第一PLMN的网络切片组标识的参数信息。For example, in a possible implementation, when the terminal device requests the existing SIB1 or SIB16, the access network device can obtain the identification information from each network slice group in the PLMN and the information related to each network slice group. Identify the associated network slice identifier, and generate parameter information based on the network slice group identifier of the first PLMN without changing the signaling design of SIB1 or SIB16.
又例如，在另一种可能的实现方式中，当终端设备请求的是新的SIB时，则接入网设备可以专门为从PLMN生成一个新的SIB。可选地，在该方案中，若从PLMN有多个，则接入网设备在为一个PLMN生成一个新的SIB后，对于选择其他从PLMN的终端设备，若也请求了新的SIB，则接入网设备可以在不改变新的SIB的信令设计的情况下，生成基于其他从PLMN的网络切片组标识的参数信息；或者，若选择其他从PLMN的终端设备也请求了新的SIB，则接入网设备可以分别为不同的从PLMN各自生成一个新的SIB，各个SIB通过各自的PLMN标识/PLMN在SIB1广播的PLMN标识信息列表(例如plmn-IdentityInfoList标准信元)或非公共网络标识信息列表(例如npn-IdentityInfoList标准信元)中的索引/服务小区内不同PLMN所属TAC、TAI来区分。For another example, in another possible implementation manner, when the terminal device requests a new SIB, the access network device may specifically generate a new SIB for the slave PLMN. Optionally, in this solution, if there are multiple slave PLMNs, after the access network device generates a new SIB for one PLMN, if the terminal device that selects other slave PLMNs also requests a new SIB, then The access network device can generate parameter information based on the network slice group identification of other slave PLMNs without changing the signaling design of the new SIB; or, if the terminal device of other slave PLMNs also requests a new SIB, Then the access network equipment can generate a new SIB for different slave PLMNs respectively. Each SIB uses its own PLMN identity/PLMN identity information list broadcast by PLMN in SIB1 (such as plmn-IdentityInfoList standard information element) or non-public network identity. The index in the information list (such as the npn-IdentityInfoList standard information element)/the TAC and TAI to which different PLMNs in the serving cell belong are distinguished.
S440，接入网设备向终端设备发送基于第一PLMN中的网络切片组标识的参数信息。S440: The access network device sends parameter information based on the network slice group identifier in the first PLMN to the terminal device.
在此说明的是，本实施例对接入网设备如何向终端设备发送基于第一PLMN中的网络 切片组标识的参数信息的实现方式不做限制。What is explained here is that this embodiment explains how the access network device sends the network information based on the network in the first PLMN to the terminal device. There are no restrictions on how the parameter information of the slice group identifier can be implemented.
例如，接入网设备可以根据选择第一PLMN的终端设备发送的请求的***消息的类型的数量来决定单播还是广播，比如当接入网设备在某一时刻一共收到超过L(L为正整数)个请求第一PLMN中的网络切片组标识的参数信息时，可以通过广播的方式向终端设备提供基于第一PLMN中的网络切片组标识的参数信息。For example, the access network device may decide whether to unicast or broadcast based on the number of requested system message types sent by the terminal device that selects the first PLMN. For example, when the access network device receives a total of more than L (L is When a positive integer) requests the parameter information of the network slice group identifier in the first PLMN, the parameter information based on the network slice group identifier in the first PLMN may be provided to the terminal device in a broadcast manner.
在此说明的是，本申请实施例对L的具体取值不做限制，可以根据具体的应用场景而定。It should be noted here that the embodiment of the present application does not limit the specific value of L, and it can be determined according to the specific application scenario.
S450，接入网设备向核心网设备发送第一标识信息；相应的，核心网设备接收第一标识信息。S450: The access network device sends the first identification information to the core network device; accordingly, the core network device receives the first identification information.
S460，核心网设备向终端设备发送第一PLMN中的每个网络切片组标识以及与每个网络切片组标识关联的网络切片标识信息。S460: The core network device sends each network slice group identifier in the first PLMN and the network slice identifier information associated with each network slice group identifier to the terminal device.
S470，终端设备基于广播和第一PLMN中的每个网络切片组标识以及与每个网络切片组标识关联的网络切片标识信息，执行小区重选或随机接入。S470: The terminal device performs cell reselection or random access based on the broadcast and each network slice group identifier in the first PLMN and the network slice identifier information associated with each network slice group identifier.
在此说明，其中S450至S470的具体实现可以参考本申请前述实施例中的描述，此处不再赘述。It should be noted that for the specific implementation of S450 to S470, reference may be made to the descriptions in the previous embodiments of this application, and they will not be described again here.
并且，本实施例中，S440和S450的执行不分先后顺序。Moreover, in this embodiment, S440 and S450 are executed in no particular order.
上文中结合图2至图4，详细描述了根据本申请实施例的通信方法，下面将结合图5至图7详细描述根据本申请实施例的通信装置。The communication method according to the embodiment of the present application is described in detail above with reference to FIGS. 2 to 4 , and the communication device according to the embodiment of the present application will be described in detail below with reference to FIGS. 5 to 7 .
图5为本申请一个实施例提供的通信装置的结构性示意图。具体地，如图5所示，该装置包括：接收模块501和发送模块502。Figure 5 is a schematic structural diagram of a communication device provided by an embodiment of the present application. Specifically, as shown in Figure 5, the device includes: a receiving module 501 and a sending module 502.
在第一个实施例中，该通信装置可以应用于核心网设备，所述装置500包括：接收模块501，用于接收来自接入网设备的第一标识信息和第二标识信息，所述第一标识信息指示终端设备选择的第一公共陆地移动网PLMN，所述第二标识信息指示所述接入网设备在广播基于网络切片组标识的参数信息时使用的第二PLMN，所述第一PLMN与所述第二PLMN不同；发送模块502，用于向所述终端设备发送第一指示信息，所述第一指示信息指示所述第一PLMN中第一网络切片标识与第一目标网络切片组标识之间的映射关系，所述第一目标网络切片组标识为所述第二PLMN中与所述第二网络切片标识关联的网络切片组标识，所述第一网络切片标识与所述第二网络切片标识指示相同的网络切片业务。In a first embodiment, the communication device can be applied to core network equipment. The device 500 includes: a receiving module 501, configured to receive first identification information and second identification information from the access network equipment. An identification information indicates the first public land mobile network PLMN selected by the terminal equipment, the second identification information indicates the second PLMN used by the access network equipment when broadcasting parameter information based on the network slice group identification, the first The PLMN is different from the second PLMN; the sending module 502 is configured to send first indication information to the terminal device, the first indication information indicating the first network slice identifier and the first target network slice in the first PLMN The mapping relationship between group identifiers, the first target network slice group identifier is the network slice group identifier associated with the second network slice identifier in the second PLMN, the first network slice identifier and the third network slice identifier The two network slice identifiers indicate the same network slice service.
作为一种示例，接收模块501可以用于执行图2所述的方法中的接收接入网设备发送第一标识信息和第二标识信息的步骤。例如，接收模块501用于执行S214。As an example, the receiving module 501 may be configured to perform the step of receiving the first identification information and the second identification information sent by the access network device in the method described in FIG. 2 . For example, the receiving module 501 is used to perform S214.
作为另一种示例，发送模块502可以用于执行图2所述的方法中的向终端设备发送第一指示信息的步骤。例如发送模块502用于执行S216。As another example, the sending module 502 may be configured to perform the step of sending the first indication information to the terminal device in the method described in FIG. 2 . For example, the sending module 502 is used to perform S216.
在一种可能的实现方式中，所述第一指示信息包括所述第一网络切片标识与所述第二网络切片标识之间的映射信息和所述第二PLMN中所述第二网络切片标识与所述第一目标网络切片组标识之间的映射信息。In a possible implementation, the first indication information includes mapping information between the first network slice identifier and the second network slice identifier and the second network slice identifier in the second PLMN. Mapping information with the first target network slice group identifier.
在一种可能的实现方式中，所述第一指示信息包括所述第一网络切片标识与所述第一目标网络切片组标识之间的映射信息。In a possible implementation manner, the first indication information includes mapping information between the first network slice identifier and the first target network slice group identifier.
在一种可能的实现方式中，所述发送模块还用于：向所述终端设备发送第二指示信息，所述第二指示信息包括第三网络切片标识与第二目标网络切片组标识之间的映射关系，所 述第二目标网络切片组标识为所述第一PLMN中与所述第三网络切片标识关联的网络切片组标识。In a possible implementation, the sending module is further configured to: send second indication information to the terminal device, where the second indication information includes a link between a third network slice identifier and a second target network slice group identifier. mapping relationship, so The second target network slice group identifier is a network slice group identifier associated with the third network slice identifier in the first PLMN.
在一种可能的实现方式中，所述接收模块501还用于：接收来自接入网设备的第一信息，所述第一信息包括N个公共陆地移动网PLMN中每个PLMN的网络切片组标识、与所述每个PLMN中的每个网络切片组标识关联的网络切片标识，所述N个PLMN中包括所述第一PLMN和所述第二PLMN，N为正整数。In a possible implementation, the receiving module 501 is further configured to: receive first information from the access network device, where the first information includes the network slice group of each PLMN of the N public land mobile network PLMNs. Identity, network slice identifier associated with each network slice group identifier in each PLMN, the N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
在第二个实施例中，该通信装置500可以应用于接入网设备。In the second embodiment, the communication device 500 can be applied to access network equipment.
其中，接收模块501，用于接收来自终端设备的第一标识信息，所述第一标识信息指示终端设备选择的第一公共陆地移动网PLMN；发送模块502，用于向核心网设备发送所述第一标识信息和第二标识信息，所述第二标识信息指示所述接入网设备在广播基于网络切片组标识的参数信息时使用的第二PLMN，所述第二PLMN与所述第一PLMN不同；所述发送模块502，还用于广播所述第二PLMN中的基于网络切片组标识的参数信息。Among them, the receiving module 501 is used to receive the first identification information from the terminal equipment, and the first identification information indicates the first public land mobile network PLMN selected by the terminal equipment; the sending module 502 is used to send the first identification information to the core network equipment. First identification information and second identification information, the second identification information indicates the second PLMN used by the access network device when broadcasting parameter information based on the network slice group identification, the second PLMN is the same as the first The PLMN is different; the sending module 502 is also configured to broadcast parameter information based on the network slice group identifier in the second PLMN.
作为一种示例，接收模块501可以用于执行图2所述的方法中的接收来自终端设备的第一标识信息的步骤。例如接收模块501用于执行S212。As an example, the receiving module 501 may be configured to perform the step of receiving the first identification information from the terminal device in the method described in FIG. 2 . For example, the receiving module 501 is used to perform S212.
作为另一种示例，发送模块502可以用于执行图2所述的方法中的向核心网设备发送第一标识信息和第二标识信息的步骤。例如，发送模块502用于执行S214。As another example, the sending module 502 may be configured to perform the step of sending the first identification information and the second identification information to the core network device in the method described in FIG. 2 . For example, the sending module 502 is used to perform S214.
在一种可能的实现方式中，所述发送模块502还用于：向所述终端设备发送第三指示信息，所述第三指示信息用于向所述终端设备指示所述基于网络切片组标识的参数信息适用的PLMN的标识信息或者不适用的PLMN的标识信息。In a possible implementation, the sending module 502 is further configured to: send third indication information to the terminal device, where the third indication information is used to indicate to the terminal device the network slicing group identification-based The identification information of the PLMN to which the parameter information is applicable or the identification information of the PLMN to which the parameter information is not applicable.
在一种可能的实现方式中，所述发送模块502还用于：广播所述第一PLMN中基于第二目标网络切片组标识的参数信息，所述第二目标网络切片组标识与第三网络切片标识关联，所述第三网络切片标识指示的网络切片业务在所述第二PLMN中没有对应的网络切片标识。In a possible implementation, the sending module 502 is further configured to: broadcast parameter information in the first PLMN based on a second target network slice group identifier, where the second target network slice group identifier is the same as the third network slice group identifier. Slice identifier association, the network slice service indicated by the third network slice identifier does not have a corresponding network slice identifier in the second PLMN.
在一种可能的实现方式中，所述发送模块502还用于：向核心网设备发送第一信息，所述第一信息包括N个公共陆地移动网PLMN中每个PLMN的网络切片组标识、与所述每个PLMN中的每个网络切片组标识关联的网络切片标识，所述N个PLMN中包括所述第一PLMN和所述第二PLMN，N为正整数。In a possible implementation, the sending module 502 is further configured to: send first information to the core network device, where the first information includes the network slice group identifier of each PLMN of the N public land mobile network PLMNs, A network slice identifier associated with each network slice group identifier in each PLMN. The N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
图6为本申请一个实施例提供的通信装置的结构性示意图。具体地，如图6所示，该装置600包括：接收模块601和处理模块602。该装置600应用于终端设备。Figure 6 is a schematic structural diagram of a communication device provided by an embodiment of the present application. Specifically, as shown in Figure 6, the device 600 includes: a receiving module 601 and a processing module 602. The device 600 is applied to terminal equipment.
其中，接收模块601，用于接收接入网设备广播的第二公共陆地移动网PLMN中的基于网络切片组标识的参数信息；所述接收模块601，还用于接收来自核心网设备的第一指示信息，所述第一指示信息指示第一PLMN中第一网络切片标识与第一目标网络切片组标识之间的映射关系，所述第一PLMN为终端设备选择的PLMN；处理模块602，用于确定第一目标业务对应的网络切片标识为所述第一网络切片标识时，从所述广播中获取基于所述第一目标网络切片组标识的参数信息。Among them, the receiving module 601 is used to receive the parameter information based on the network slice group identifier in the second public land mobile network PLMN broadcast by the access network device; the receiving module 601 is also used to receive the first parameter information from the core network device. Instruction information, the first instruction information indicates the mapping relationship between the first network slice identifier and the first target network slice group identifier in the first PLMN, and the first PLMN is the PLMN selected by the terminal device; the processing module 602 uses When it is determined that the network slice identifier corresponding to the first target service is the first network slice identifier, parameter information based on the first target network slice group identifier is obtained from the broadcast.
作为一种示例，接收模块601可以用于执行图2所述的方法中的接收来自核心网设备的第一指示信息的步骤。例如接收模块601用于执行S216。As an example, the receiving module 601 may be configured to perform the step of receiving the first indication information from the core network device in the method described in FIG. 2 . For example, the receiving module 601 is used to perform S216.
作为另一种示例，处理模块602可以用于执行图2所述的方法中的从广播中获取基于第一目标网络切片组标识的参数信息的步骤。例如，处理模块602用于执行S220。 As another example, the processing module 602 may be configured to perform the step of obtaining parameter information based on the first target network slice group identity from the broadcast in the method described in FIG. 2 . For example, the processing module 602 is used to perform S220.
在一种可能的实现方式中，所述第一指示信息包括所述第一网络切片标识与所述第二网络切片标识之间的映射信息和所述第二PLMN中所述第二网络切片标识与所述第一目标网络切片组标识之间的映射信息。In a possible implementation, the first indication information includes mapping information between the first network slice identifier and the second network slice identifier and the second network slice identifier in the second PLMN. Mapping information with the first target network slice group identifier.
在一种可能的实现方式中，所述第一指示信息包括所述第一网络切片标识与所述第一目标网络切片组标识之间的映射信息。In a possible implementation manner, the first indication information includes mapping information between the first network slice identifier and the first target network slice group identifier.
在一种可能的实现方式中，所述接收模块601还用于：接收来自所述核心网设备的第二指示信息，所述第二指示信息包括第三网络切片标识与第二目标网络切片组标识之间的映射关系，所述第二目标网络切片组标识为所述第一PLMN中与所述第三网络切片标识关联的网络切片组标识；接收所述接入网设备广播的第一PLMN中的基于第二目标网络切片组标识的参数信息。In a possible implementation, the receiving module 601 is further configured to receive second indication information from the core network device, where the second indication information includes a third network slice identifier and a second target network slice group. Mapping relationship between identifiers, the second target network slice group identifier is the network slice group identifier associated with the third network slice identifier in the first PLMN; receiving the first PLMN broadcast by the access network device The parameter information based on the second target network slice group identifier in .
在一种可能的实现方式中，所述处理模块602还用于：确定第二目标业务对应的网络切片标识为所述第三网络切片标识时，若基于所述第一指示信息确定出所述第二目标业务在所述第二PLMN中不存在对应的网络切片组标识，基于所述第二指示信息确定所述第二目标网络切片组标识；从所述广播中获取所述第一PLMN中的基于第二目标网络切片组标识的参数信息。In a possible implementation, the processing module 602 is further configured to: when determining that the network slice identifier corresponding to the second target service is the third network slice identifier, if it is determined based on the first indication information that the The second target service does not have a corresponding network slice group identifier in the second PLMN. The second target network slice group identifier is determined based on the second indication information; and the second target network slice group identifier is obtained from the broadcast. parameter information based on the second target network slice group identifier.
在一种可能的实现方式中，所述接收模块601还用于：接收第三指示信息，所述第三指示信息用于向所述终端设备指示所述基于网络切片组标识的参数信息适用的PLMN的标识信息或者不适用的PLMN的标识信息。In a possible implementation, the receiving module 601 is further configured to: receive third indication information, the third indication information being used to indicate to the terminal device that the parameter information based on the network slice group identity is applicable. The identification information of the PLMN or the identification information of the inapplicable PLMN.
图7为本申请提供的一种终端设备700的结构示意图。为了便于说明，图7仅示出了终端设备的主要部件。如图7所示，终端设备700包括处理器、存储器、控制电路、天线以及输入输出装置。该终端设备700可应用于如图1所示的***中，执行上述方法实施例中终端设备的功能。Figure 7 is a schematic structural diagram of a terminal device 700 provided by this application. For ease of explanation, FIG. 7 shows only the main components of the terminal device. As shown in FIG. 7 , the terminal device 700 includes a processor, a memory, a control circuit, an antenna, and an input and output device. The terminal device 700 can be applied in the system as shown in Figure 1 to perform the functions of the terminal device in the above method embodiment.
处理器主要用于对通信协议以及通信数据进行处理，以及对整个终端设备进行控制，执行软件程序，处理软件程序的数据，例如用于控制终端设备执行上述方法实施例中所描述的动作。存储器主要用于存储软件程序和数据。控制电路主要用于基带信号与射频信号的转换以及对射频信号的处理。控制电路和天线一起也可以叫做收发器，主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。The processor is mainly used to process communication protocols and communication data, and to control the entire terminal device, execute software programs, and process data of the software programs. For example, it is used to control the terminal device to perform the actions described in the above method embodiments. Memory is mainly used to store software programs and data. The control circuit is mainly used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals. The control circuit and the antenna together can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users.
当终端设备开机后，处理器可以读取存储单元中的软件程序，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。当有数据发送到终端设备时，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，处理器将基带信号转换为数据并对该数据进行处理。When the terminal device is turned on, the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and then sends the radio frequency signal out in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, 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. The processor converts the baseband signal into data and processes the data.
本领域技术人员可以理解，为了便于说明，图7仅示出了一个存储器和处理器。在实际的终端设备中，可以存在多个处理器和存储器。存储器也可以称为存储介质或者存储设备等，本申请实施例对此不做限制。Those skilled in the art can understand that, for convenience of explanation, FIG. 7 only shows one memory and processor. In an actual terminal device, there may be multiple processors and memories. The memory may also be called a storage medium or a storage device, which is not limited in the embodiments of the present application.
作为一种可选的实现方式，处理器可以包括基带处理器和中央处理器，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个终端设备进行控制， 执行软件程序，处理软件程序的数据。图7中的处理器集成了基带处理器和中央处理器的功能，本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。本领域技术人员可以理解，终端设备可以包括多个基带处理器以适应不同的网络制式，终端设备可以包括多个中央处理器以增强其处理能力，终端设备的各个部件可以通过各种总线连接。该基带处理器也可以表述为基带处理电路或者基带处理芯片。该中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储单元中，由处理器执行软件程序以实现基带处理功能。As an optional implementation method, the processor may include a baseband processor and a central processor. The baseband processor is mainly used to process communication protocols and communication data. The central processor is mainly used to control the entire terminal device. Execute software programs and process data from software programs. The processor in Figure 7 integrates the functions of the baseband processor and the central processor. Those skilled in the art can understand that the baseband processor and the central processor can also be independent processors and are interconnected through technologies such as buses. Those skilled in the art can understand that the terminal device may include multiple baseband processors to adapt to different network standards, the terminal device may include multiple central processors to enhance its processing capabilities, and various components of the terminal device may be connected through various buses. The baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data can be built into the processor, or can be stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.
示例性的，在图7的实施例中，可以将具有收发功能的天线和控制电路视为终端设备700的收发单元701，将具有处理功能的处理器视为终端设备700的处理单元702。如图7所示，终端设备700包括收发单元701和处理单元702。收发单元也可以称为收发器、收发机、收发装置等。可选的，可以将收发单元701中用于实现接收功能的器件视为接收单元，将收发单元701中用于实现发送功能的器件视为发送单元，即收发单元701包括接收单元和发送单元。示例性的，接收单元也可以称为接收机、接收器、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。For example, in the embodiment of FIG. 7 , the antenna and the control circuit with the transceiver function can be regarded as the transceiver unit 701 of the terminal device 700 , and the processor with the processing function can be regarded as the processing unit 702 of the terminal device 700 . As shown in FIG. 7 , the terminal device 700 includes a transceiver unit 701 and a processing unit 702 . The transceiver unit may also be called a transceiver, a transceiver, a transceiver device, etc. Optionally, the devices used to implement the receiving function in the transceiving unit 701 can be regarded as receiving units, and the devices used in the transceiving unit 701 used to implement the transmitting function can be regarded as sending units. That is, the transceiving unit 701 includes a receiving unit and a transmitting unit. For example, the receiving unit may also be called a receiver, a receiver, a receiving circuit, etc., and the sending unit may be called a transmitter, a transmitter, a transmitting circuit, etc.
图7所示的终端设备700能够实现图2至图4所示的方法实施例中涉及终端设备的各个过程。终端设备700中的各个模块的操作和/或功能，分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述，为避免重复，此处适当省略详述描述。The terminal device 700 shown in Figure 7 can implement various processes involving the terminal device in the method embodiments shown in Figures 2 to 4. The operations and/or functions of each module in the terminal device 700 are respectively to implement the corresponding processes in the above method embodiment. For details, please refer to the description in the above method embodiments. To avoid repetition, the detailed description is appropriately omitted here.
图8为本申请另一个实施例提供的通信装置的结构性示意图。图8所示的装置可以用于执行前述任意一个实施例所述的方法。Figure 8 is a schematic structural diagram of a communication device provided by another embodiment of the present application. The device shown in Figure 8 can be used to perform the method described in any of the aforementioned embodiments.
如图8所示，本实施例的装置800包括：存储器801、处理器802、通信接口803以及总线804。其中，存储器801、处理器802、通信接口803通过总线804实现彼此之间的通信连接。As shown in FIG. 8 , the device 800 in this embodiment includes: a memory 801 , a processor 802 , a communication interface 803 and a bus 804 . Among them, the memory 801, the processor 802, and the communication interface 803 implement communication connections between each other through the bus 804.
存储器801可以是只读存储器(read only memory，ROM)，静态存储设备，动态存储设备或者随机存取存储器(random access memory，RAM)。存储器801可以存储程序，当存储器801中存储的程序被处理器802执行时，处理器802用于执行图2至图4所示的方法的各个步骤。The memory 801 may be a read only memory (ROM), a static storage device, a dynamic storage device or a random access memory (RAM). The memory 801 can store programs. When the program stored in the memory 801 is executed by the processor 802, the processor 802 is used to execute various steps of the methods shown in Figures 2 to 4.
处理器802可以采用通用的中央处理器(central processing unit，CPU)，微处理器，应用专用集成电路(application specific integrated circuit，ASIC)，或者一个或多个集成电路，用于执行相关程序，以实现本申请图2至图4所示的方法。The processor 802 may be a general central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits for executing related programs to Implement the methods shown in Figures 2 to 4 of this application.
处理器802还可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，本申请实施例图2至图4的方法的各个步骤可以通过处理器802中的硬件的集成逻辑电路或者软件形式的指令完成。The processor 802 may also be an integrated circuit chip with signal processing capabilities. During the implementation process, each step of the method shown in FIGS. 2 to 4 in the embodiment of the present application can be completed by instructions in the form of hardware integrated logic circuits or software in the processor 802 .
上述处理器802还可以是通用处理器、数字信号处理器(digital signal processing，DSP)、专用集成电路(ASIC)、现成可编程门阵列(field programmable gate array，FPGA)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、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。The above-mentioned processor 802 can also be a general-purpose processor, a digital signal processor (digital signal processing, DSP), an application-specific integrated circuit (ASIC), an off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, Discrete gate or transistor logic devices, discrete hardware components. Each method, step and logical block diagram disclosed in the embodiment of this application can be implemented or executed. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或 者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器801，处理器802读取存储器801中的信息，结合其硬件完成本申请装置包括的单元所需执行的功能，例如，可以执行图2至图4所示实施例的各个步骤/功能。The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or It is executed by a combination of hardware and software modules in the decoding processor. The software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in this field. The storage medium is located in the memory 801, and the processor 802 reads the information in the memory 801, and combines its hardware to complete the functions required to be performed by the units included in the device of the present application. For example, each step of the embodiment shown in Figures 2 to 4 can be executed. /Function.
通信接口803可以使用但不限于收发器一类的收发装置，来实现装置800与其他设备或通信网络之间的通信。The communication interface 803 may use, but is not limited to, a transceiver device such as a transceiver to implement communication between the device 800 and other devices or communication networks.
总线804可以包括在装置800各个部件(例如，存储器801、处理器802、通信接口803)之间传送信息的通路。Bus 804 may include a path that carries information between various components of device 800 (eg, memory 801, processor 802, communication interface 803).
应理解，本申请实施例所示的装置800可以是电子设备，或者，也可以是配置于电子设备中的芯片。It should be understood that the device 800 shown in the embodiment of the present application may be an electronic device, or may also be a chip configured in the electronic device.
上述实施例，可以全部或部分地通过软件、硬件、固件或其他任意组合来实现。当使用软件实现时，上述实施例可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令或计算机程序。在计算机上加载或执行所述计算机指令或计算机程序时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以为通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集合的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质。半导体介质可以是固态硬盘。The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented using software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmit to another website, computer, server or data center through wired (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that contains one or more sets of available media. The usable media may be magnetic media (eg, floppy disk, hard disk, tape), optical media (eg, DVD), or semiconductor media. The semiconductor medium may be a solid state drive.
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。It should be understood that in the various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.
在本申请所提供的几个实施例中，应该理解到，所揭露的***、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。 In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk and other various media that can store program codes.
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。 The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims (33)

  1. 一种通信方法，其特征在于，应用于核心网设备，所述方法包括：A communication method, characterized in that it is applied to core network equipment, and the method includes:
    接收来自接入网设备的第一标识信息和第二标识信息，所述第一标识信息指示终端设备选择的第一公共陆地移动网PLMN，所述第二标识信息指示所述接入网设备在广播基于网络切片组标识的参数信息时使用的第二PLMN，所述第一PLMN与所述第二PLMN不同；Receive first identification information and second identification information from the access network device, the first identification information indicates the first public land mobile network PLMN selected by the terminal equipment, and the second identification information indicates that the access network equipment is in A second PLMN used when broadcasting parameter information based on the network slice group identity, where the first PLMN is different from the second PLMN;
    向所述终端设备发送第一指示信息，所述第一指示信息指示所述第一PLMN中第一网络切片标识与第一目标网络切片组标识之间的映射关系，所述第一目标网络切片组标识为所述第二PLMN中与所述第二网络切片标识关联的网络切片组标识，所述第一网络切片标识与所述第二网络切片标识指示相同的网络切片业务。Send first indication information to the terminal device, where the first indication information indicates a mapping relationship between a first network slice identifier and a first target network slice group identifier in the first PLMN, and the first target network slice The group identifier is a network slice group identifier associated with the second network slice identifier in the second PLMN, and the first network slice identifier and the second network slice identifier indicate the same network slice service.
  2. 根据权利要求1所述的方法，其特征在于，所述第一指示信息包括所述第一网络切片标识与所述第二网络切片标识之间的映射信息和所述第二PLMN中所述第二网络切片标识与所述第一目标网络切片组标识之间的映射信息。The method of claim 1, wherein the first indication information includes mapping information between the first network slice identifier and the second network slice identifier and the second network slice identifier in the second PLMN. Mapping information between the second network slice identifier and the first target network slice group identifier.
  3. 根据权利要求1所述的方法，其特征在于，所述第一指示信息包括所述第一网络切片标识与所述第一目标网络切片组标识之间的映射信息。The method of claim 1, wherein the first indication information includes mapping information between the first network slice identifier and the first target network slice group identifier.
  4. 根据权利要求2或3所述的方法，其特征在于，所述方法还包括：The method according to claim 2 or 3, characterized in that, the method further includes:
    向所述终端设备发送第二指示信息，所述第二指示信息包括第三网络切片标识与第二目标网络切片组标识之间的映射关系，所述第二目标网络切片组标识为所述第一PLMN中与所述第三网络切片标识关联的网络切片组标识。Send second instruction information to the terminal device, where the second instruction information includes a mapping relationship between a third network slice identifier and a second target network slice group identifier, and the second target network slice group identifier is the third network slice group identifier. A network slice group identifier associated with the third network slice identifier in a PLMN.
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 1 to 4, characterized in that the method further includes:
    接收来自接入网设备的第一信息，所述第一信息包括N个公共陆地移动网PLMN中每个PLMN的网络切片组标识、与所述每个PLMN中的每个网络切片组标识关联的网络切片标识，所述N个PLMN中包括所述第一PLMN和所述第二PLMN，N为正整数。Receive first information from an access network device, where the first information includes a network slice group identifier of each PLMN in the N public land mobile network PLMNs, and a network slice group identifier associated with each network slice group identifier in each PLMN. Network slice identifier. The N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
  6. 一种通信方法，其特征在于，应用于接入网设备，包括：A communication method, characterized in that it is applied to access network equipment, including:
    接收来自终端设备的第一标识信息，所述第一标识信息指示终端设备选择的第一公共陆地移动网PLMN；Receive first identification information from the terminal equipment, the first identification information indicating the first public land mobile network PLMN selected by the terminal equipment;
    向核心网设备发送所述第一标识信息和第二标识信息，所述第二标识信息指示所述接入网设备在广播基于网络切片组标识的参数信息时使用的第二PLMN，所述第二PLMN与所述第一PLMN不同；Send the first identification information and the second identification information to the core network device. The second identification information indicates the second PLMN used by the access network device when broadcasting parameter information based on the network slice group identification. The second PLMN is different from the first PLMN;
    广播所述第二PLMN中的基于网络切片组标识的参数信息。Broadcast parameter information based on the network slice group identifier in the second PLMN.
  7. 根据权利要求6所述的方法，其特征在于，所述方法还包括：The method of claim 6, further comprising:
    向所述终端设备发送第三指示信息，所述第三指示信息用于向所述终端设备指示所述基于网络切片组标识的参数信息适用的PLMN的标识信息或者不适用的PLMN的标识信息。Send third indication information to the terminal device, where the third indication information is used to indicate to the terminal device the identification information of the PLMN to which the parameter information based on the network slice group identification is applicable or the identification information of the PLMN to which the parameter information based on the network slice group identification is not applicable.
  8. 根据权利要求7所述的方法，其特征在于，所述方法还包括：The method of claim 7, further comprising:
    广播所述第一PLMN中基于第二目标网络切片组标识的参数信息，所述第二目标网络切片组标识与第三网络切片标识关联，所述第三网络切片标识指示的网络切片业 务在所述第二PLMN中没有对应的网络切片标识。Broadcast parameter information in the first PLMN based on a second target network slice group identifier, the second target network slice group identifier is associated with a third network slice identifier, and the network slice industry indicated by the third network slice identifier The service does not have a corresponding network slice identifier in the second PLMN.
  9. 根据权利要求6至8中任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 6 to 8, characterized in that the method further includes:
    向核心网设备发送第一信息，所述第一信息包括N个公共陆地移动网PLMN中每个PLMN的网络切片组标识、与所述每个PLMN中的每个网络切片组标识关联的网络切片标识，所述N个PLMN中包括所述第一PLMN和所述第二PLMN，N为正整数。Send first information to the core network device, where the first information includes the network slice group identifier of each PLMN in the N public land mobile network PLMN, and the network slice associated with each network slice group identifier in each PLMN. Identification, the N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
  10. 一种通信方法，其特征在于，应用于终端设备，包括：A communication method, characterized in that it is applied to terminal equipment, including:
    接收接入网设备广播的第二公共陆地移动网PLMN中的基于网络切片组标识的参数信息；Receive parameter information based on the network slice group identifier in the second public land mobile network PLMN broadcast by the access network device;
    接收来自核心网设备的第一指示信息，所述第一指示信息指示第一PLMN中第一网络切片标识与第一目标网络切片组标识之间的映射关系，所述第一PLMN为终端设备选择的PLMN；Receive first indication information from a core network device, the first indication information indicating a mapping relationship between a first network slice identifier and a first target network slice group identifier in a first PLMN selected by the terminal device PLMN;
    确定第一目标业务对应的网络切片标识为所述第一网络切片标识时，从所述广播中获取基于所述第一目标网络切片组标识的参数信息。When it is determined that the network slice identifier corresponding to the first target service is the first network slice identifier, parameter information based on the first target network slice group identifier is obtained from the broadcast.
  11. 根据权利要求10所述的方法，其特征在于，所述第一指示信息包括所述第一网络切片标识与所述第二网络切片标识之间的映射信息和所述第二PLMN中所述第二网络切片标识与所述第一目标网络切片组标识之间的映射信息。The method according to claim 10, wherein the first indication information includes mapping information between the first network slice identifier and the second network slice identifier and the first network slice identifier in the second PLMN. Mapping information between the second network slice identifier and the first target network slice group identifier.
  12. 根据权利要求10所述的方法，其特征在于，所述第一指示信息包括所述第一网络切片标识与所述第一目标网络切片组标识之间的映射信息。The method according to claim 10, wherein the first indication information includes mapping information between the first network slice identifier and the first target network slice group identifier.
  13. 根据权利要求11或12所述的方法，其特征在于，所述方法还包括：The method according to claim 11 or 12, characterized in that, the method further includes:
    接收来自所述核心网设备的第二指示信息，所述第二指示信息包括第三网络切片标识与第二目标网络切片组标识之间的映射关系，所述第二目标网络切片组标识为所述第一PLMN中与所述第三网络切片标识关联的网络切片组标识；Receive second indication information from the core network device, where the second indication information includes a mapping relationship between a third network slice identifier and a second target network slice group identifier, where the second target network slice group identifier is the the network slice group identifier associated with the third network slice identifier in the first PLMN;
    接收所述接入网设备广播的第一PLMN中的基于第二目标网络切片组标识的参数信息。Receive parameter information based on the second target network slice group identifier in the first PLMN broadcast by the access network device.
  14. 根据权利要求13所述的方法，其特征在于，所述方法还包括：The method of claim 13, further comprising:
    确定第二目标业务对应的网络切片标识为所述第三网络切片标识时，若基于所述第一指示信息确定出所述第二目标业务在所述第二PLMN中不存在对应的网络切片组标识，基于所述第二指示信息确定所述第二目标网络切片组标识；When it is determined that the network slice identifier corresponding to the second target service is the third network slice identifier, if it is determined based on the first indication information that the second target service does not have a corresponding network slice group in the second PLMN identification, determining the second target network slice group identification based on the second indication information;
    从所述广播中获取所述第一PLMN中的基于第二目标网络切片组标识的参数信息。Obtain parameter information based on the second target network slice group identifier in the first PLMN from the broadcast.
  15. 根据权利要求13所述的方法，其特征在于，所述方法还包括：The method of claim 13, further comprising:
    接收第三指示信息，所述第三指示信息用于向所述终端设备指示所述基于网络切片组标识的参数信息适用的PLMN的标识信息或者不适用的PLMN的标识信息。Receive third indication information, the third indication information being used to indicate to the terminal device the identification information of the PLMN to which the parameter information based on the network slice group identification is applicable or the identification information of the PLMN to which the parameter information based on the network slice group identification is not applicable.
  16. 一种通信装置，其特征在于，应用于核心网设备，所述装置包括：A communication device, characterized in that it is applied to core network equipment, and the device includes:
    接收模块，用于接收来自接入网设备的第一标识信息和第二标识信息，所述第一标识信息指示终端设备选择的第一公共陆地移动网PLMN，所述第二标识信息指示所述接入网设备在广播基于网络切片组标识的参数信息时使用的第二PLMN，所述第一PLMN与所述第二PLMN不同；A receiving module configured to receive first identification information and second identification information from the access network device, the first identification information indicating the first public land mobile network PLMN selected by the terminal equipment, and the second identification information indicating the A second PLMN used by the access network device when broadcasting parameter information based on the network slice group identifier, where the first PLMN is different from the second PLMN;
    发送模块，用于向所述终端设备发送第一指示信息，所述第一指示信息指示所述第一PLMN中第一网络切片标识与第一目标网络切片组标识之间的映射关系，所述第 一目标网络切片组标识为所述第二PLMN中与所述第二网络切片标识关联的网络切片组标识，所述第一网络切片标识与所述第二网络切片标识指示相同的网络切片业务。A sending module, configured to send first indication information to the terminal device, where the first indication information indicates a mapping relationship between a first network slice identifier and a first target network slice group identifier in the first PLMN, the No. A target network slice group identifier is a network slice group identifier associated with the second network slice identifier in the second PLMN, and the first network slice identifier and the second network slice identifier indicate the same network slice service.
  17. 根据权利要求16所述的装置，其特征在于，所述第一指示信息包括所述第一网络切片标识与所述第二网络切片标识之间的映射信息和所述第二PLMN中所述第二网络切片标识与所述第一目标网络切片组标识之间的映射信息。The apparatus according to claim 16, wherein the first indication information includes mapping information between the first network slice identifier and the second network slice identifier and the first network slice identifier in the second PLMN. Mapping information between the second network slice identifier and the first target network slice group identifier.
  18. 根据权利要求16所述的装置，其特征在于，所述第一指示信息包括所述第一网络切片标识与所述第一目标网络切片组标识之间的映射信息。The apparatus according to claim 16, wherein the first indication information includes mapping information between the first network slice identifier and the first target network slice group identifier.
  19. 根据权利要求17或18所述的装置，其特征在于，所述发送模块还用于：The device according to claim 17 or 18, characterized in that the sending module is also used to:
    向所述终端设备发送第二指示信息，所述第二指示信息包括第三网络切片标识与第二目标网络切片组标识之间的映射关系，所述第二目标网络切片组标识为所述第一PLMN中与所述第三网络切片标识关联的网络切片组标识。Send second instruction information to the terminal device, where the second instruction information includes a mapping relationship between a third network slice identifier and a second target network slice group identifier, and the second target network slice group identifier is the third network slice group identifier. A network slice group identifier associated with the third network slice identifier in a PLMN.
  20. 根据权利要求16至19中任一项所述的装置，其特征在于，所述接收模块还用于：The device according to any one of claims 16 to 19, characterized in that the receiving module is also used for:
    接收来自接入网设备的第一信息，所述第一信息包括N个公共陆地移动网PLMN中每个PLMN的网络切片组标识、与所述每个PLMN中的每个网络切片组标识关联的网络切片标识，所述N个PLMN中包括所述第一PLMN和所述第二PLMN，N为正整数。Receive first information from an access network device, where the first information includes a network slice group identifier of each PLMN in the N public land mobile network PLMNs, and a network slice group identifier associated with each network slice group identifier in each PLMN. Network slice identifier. The N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
  21. 一种通信装置，其特征在于，应用于接入网设备，包括：A communication device, characterized in that it is applied to access network equipment, including:
    接收模块，用于接收来自终端设备的第一标识信息，所述第一标识信息指示终端设备选择的第一公共陆地移动网PLMN；A receiving module, configured to receive first identification information from the terminal equipment, the first identification information indicating the first public land mobile network PLMN selected by the terminal equipment;
    发送模块，用于向核心网设备发送所述第一标识信息和第二标识信息，所述第二标识信息指示所述接入网设备在广播基于网络切片组标识的参数信息时使用的第二PLMN，所述第二PLMN与所述第一PLMN不同；A sending module configured to send the first identification information and the second identification information to the core network device, where the second identification information indicates the second identification information used by the access network device when broadcasting parameter information based on the network slicing group identification. PLMN, the second PLMN is different from the first PLMN;
    所述发送模块，还用于广播所述第二PLMN中的基于网络切片组标识的参数信息。The sending module is also configured to broadcast the parameter information based on the network slice group identifier in the second PLMN.
  22. 根据权利要求21所述的装置，其特征在于，所述发送模块还用于：The device according to claim 21, characterized in that the sending module is also used to:
    向所述终端设备发送第三指示信息，所述第三指示信息用于向所述终端设备指示所述基于网络切片组标识的参数信息适用的PLMN的标识信息或者不适用的PLMN的标识信息。Send third indication information to the terminal device, where the third indication information is used to indicate to the terminal device the identification information of the PLMN to which the parameter information based on the network slice group identification is applicable or the identification information of the PLMN to which the parameter information based on the network slice group identification is not applicable.
  23. 根据权利要求22所述的装置，其特征在于，所述发送模块还用于：The device according to claim 22, characterized in that the sending module is also used to:
    广播所述第一PLMN中基于第二目标网络切片组标识的参数信息，所述第二目标网络切片组标识与第三网络切片标识关联，所述第三网络切片标识指示的网络切片业务在所述第二PLMN中没有对应的网络切片标识。Broadcast parameter information in the first PLMN based on a second target network slice group identifier, where the second target network slice group identifier is associated with a third network slice identifier, and the network slice service indicated by the third network slice identifier is located there There is no corresponding network slice identifier in the second PLMN.
  24. 根据权利要求21至23中任一项所述的装置，其特征在于，所述发送模块还用于：The device according to any one of claims 21 to 23, characterized in that the sending module is also used to:
    向核心网设备发送第一信息，所述第一信息包括N个公共陆地移动网PLMN中每个PLMN的网络切片组标识、与所述每个PLMN中的每个网络切片组标识关联的网络切片标识，所述N个PLMN中包括所述第一PLMN和所述第二PLMN，N为正整数。Send first information to the core network device, where the first information includes the network slice group identifier of each PLMN in the N public land mobile network PLMN, and the network slice associated with each network slice group identifier in each PLMN. Identification, the N PLMNs include the first PLMN and the second PLMN, and N is a positive integer.
  25. 一种通信装置，其特征在于，应用于终端设备，包括：A communication device, characterized in that it is applied to terminal equipment and includes:
    接收模块，用于接收接入网设备广播的第二公共陆地移动网PLMN中的基于网络 切片组标识的参数信息；A receiving module, configured to receive network-based information in the second public land mobile network PLMN broadcast by the access network equipment. Parameter information of slice group identification;
    所述接收模块，还用于接收来自核心网设备的第一指示信息，所述第一指示信息指示第一PLMN中第一网络切片标识与第一目标网络切片组标识之间的映射关系，所述第一PLMN为终端设备选择的PLMN；The receiving module is also configured to receive first indication information from the core network device, where the first indication information indicates the mapping relationship between the first network slice identifier and the first target network slice group identifier in the first PLMN, so The first PLMN is the PLMN selected by the terminal device;
    处理模块，用于确定第一目标业务对应的网络切片标识为所述第一网络切片标识时，从所述广播中获取基于所述第一目标网络切片组标识的参数信息。A processing module configured to obtain parameter information based on the first target network slice group identifier from the broadcast when it is determined that the network slice identifier corresponding to the first target service is the first network slice identifier.
  26. 根据权利要求25所述的装置，其特征在于，所述第一指示信息包括所述第一网络切片标识与所述第二网络切片标识之间的映射信息和所述第二PLMN中所述第二网络切片标识与所述第一目标网络切片组标识之间的映射信息。The apparatus according to claim 25, wherein the first indication information includes mapping information between the first network slice identifier and the second network slice identifier and the first network slice identifier in the second PLMN. Mapping information between the second network slice identifier and the first target network slice group identifier.
  27. 根据权利要求25所述的装置，其特征在于，所述第一指示信息包括所述第一网络切片标识与所述第一目标网络切片组标识之间的映射信息。The apparatus according to claim 25, wherein the first indication information includes mapping information between the first network slice identifier and the first target network slice group identifier.
  28. 根据权利要求26或27所述的装置，其特征在于，所述接收模块还用于：The device according to claim 26 or 27, characterized in that the receiving module is also used for:
    接收来自所述核心网设备的第二指示信息，所述第二指示信息包括第三网络切片标识与第二目标网络切片组标识之间的映射关系，所述第二目标网络切片组标识为所述第一PLMN中与所述第三网络切片标识关联的网络切片组标识；Receive second indication information from the core network device, where the second indication information includes a mapping relationship between a third network slice identifier and a second target network slice group identifier, where the second target network slice group identifier is the the network slice group identifier associated with the third network slice identifier in the first PLMN;
    接收所述接入网设备广播的第一PLMN中的基于第二目标网络切片组标识的参数信息。Receive parameter information based on the second target network slice group identifier in the first PLMN broadcast by the access network device.
  29. 根据权利要求28所述的装置，其特征在于，所述处理模块还用于：The device according to claim 28, characterized in that the processing module is also used to:
    确定第二目标业务对应的网络切片标识为所述第三网络切片标识时，若基于所述第一指示信息确定出所述第二目标业务在所述第二PLMN中不存在对应的网络切片组标识，基于所述第二指示信息确定所述第二目标网络切片组标识；When it is determined that the network slice identifier corresponding to the second target service is the third network slice identifier, if it is determined based on the first indication information that the second target service does not have a corresponding network slice group in the second PLMN identification, determining the second target network slice group identification based on the second indication information;
    从所述广播中获取所述第一PLMN中的基于第二目标网络切片组标识的参数信息。Obtain parameter information based on the second target network slice group identifier in the first PLMN from the broadcast.
  30. 根据权利要求29所述的装置，其特征在于，所述接收模块还用于：The device according to claim 29, characterized in that the receiving module is also used for:
    接收第三指示信息，所述第三指示信息用于向所述终端设备指示所述基于网络切片组标识的参数信息适用的PLMN的标识信息或者不适用的PLMN的标识信息。Receive third indication information, the third indication information being used to indicate to the terminal device the identification information of the PLMN to which the parameter information based on the network slice group identification is applicable or the identification information of the PLMN to which the parameter information based on the network slice group identification is not applicable.
  31. 一种通信装置，其特征在于，包括：存储器和处理器；A communication device, characterized by including: a memory and a processor;
    所述存储器用于存储程序指令；The memory is used to store program instructions;
    所述处理器用于调用所述存储器中的程序指令执行如权利要求1至5或权利要求6至9或权利要求10至15中任一项所述的方法。The processor is configured to call program instructions in the memory to execute the method as described in any one of claims 1 to 5, 6 to 9, or 10 to 15.
  32. 一种计算机可读介质，其特征在于，所述计算机可读介质存储用于计算机执行的程序代码，该程序代码包括用于执行如权利要求1至5或权利要求6至9或权利要求10至15中任一项所述的方法的指令。A computer-readable medium, characterized in that the computer-readable medium stores program code for computer execution, and the program code includes instructions for executing claims 1 to 5 or claims 6 to 9 or claims 10 to 10. Instructions for the method described in any one of 15.
  33. 一种计算机程序产品，所述计算机程序产品中包括计算机程序代码，其特征在于，当所述计算机程序代码在计算机上运行时，使得所述计算机实现如权利要求1至5或权利要求6至9或权利要求10至15中任一项所述的方法。 A computer program product, the computer program product includes computer program code, characterized in that when the computer program code is run on a computer, the computer implements claims 1 to 5 or claims 6 to 9 Or the method of any one of claims 10 to 15.
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