WO2024007795A1 - Procédé de communication et appareil de communication - Google Patents

Procédé de communication et appareil de communication 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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English (en)
Chinese (zh)
Inventor
张柔佳
孙飞
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华为技术有限公司
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Publication of WO2024007795A1 publication Critical patent/WO2024007795A1/fr

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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

L'invention concerne un procédé de communication et un appareil de communication. Dans le procédé, lorsqu'un dispositif de réseau d'accès détermine qu'un premier PLMN, qui est sélectionné par un dispositif terminal, n'est pas un second PLMN, qui est utilisé lorsque le dispositif de réseau d'accès diffuse des informations de paramètre sur la base d'un identifiant de groupe de tranches de réseau, le dispositif de réseau d'accès envoie à un dispositif de réseau central des premières informations d'identification indiquant le premier PLMN et des secondes informations d'identification indiquant le second PLMN; le dispositif de réseau central reçoit les premières informations d'identification et les secondes informations d'identification; et s'il est déterminé que le service de tranche de réseau indiqué par un premier identifiant de tranche de réseau dans le premier PLMN est le même qu'un service de tranche de réseau indiqué par un second identifiant de tranche de réseau dans le second PLMN, une relation de correspondance entre le premier identifiant de tranche de réseau dans le premier PLMN et un premier identifiant de groupe de tranches de réseau cible est envoyée au dispositif terminal, de telle sorte que le dispositif terminal puisse acquérir, à partir des informations de paramètre diffusées sur la base d'un identifiant de groupe de tranches de réseau dans le second PLMN, des informations de paramètre relatives au premier identifiant de groupe de tranches de réseau cible.
PCT/CN2023/098507 2022-07-05 2023-06-06 Procédé de communication et appareil de communication WO2024007795A1 (fr)

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CN113766581A (zh) * 2020-06-03 2021-12-07 华为技术有限公司 通信方法以及相关联的通信装置、介质和芯片
WO2022009772A1 (fr) * 2020-07-08 2022-01-13 Sharp Kabushiki Kaisha Sélection/resélection de cellule pour découpage en tranches de réseau
CN112153751A (zh) * 2020-09-08 2020-12-29 中国联合网络通信集团有限公司 一种网络切片的确定方法、基站及用户设备

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