CN110838927A - Slice mapping remapping method and access network element - Google Patents
Slice mapping remapping method and access network element Download PDFInfo
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- CN110838927A CN110838927A CN201810930072.4A CN201810930072A CN110838927A CN 110838927 A CN110838927 A CN 110838927A CN 201810930072 A CN201810930072 A CN 201810930072A CN 110838927 A CN110838927 A CN 110838927A
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
Abstract
The invention provides a slice mapping remapping method and an access network element, and belongs to the technical field of wireless communication. The slice mapping remapping method is applied to an access network element, and comprises the following steps: slice mapping information and/or slice remapping information for a slice is received. The technical scheme of the invention can solve the remapping problem of the slices.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a slice mapping remapping method and an access network element.
Background
The 5G network slice is an important tool for an operator to meet highly differentiated 5G vertical application scenes and provide a horizontal support platform. Important features of network slicing include satisfying differentiated service requirements, and achieving resource sharing and isolation. Different network coverage areas are adapted to different communication requirements, and different network slices can be configured, so that the problem of availability (slice availability) of the network slices exists. In the prior art, a flow is designed for transmitting network slice information, so that slice capability information and slice information of a current session can be interacted between sites.
Although existing networks support the delivery of slice information from a flow. However, the prior art has not provided a sophisticated solution for network slicing strategies, such as when a user terminal moves to a cell that does not support a current slice.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a slice mapping remapping method and an access network element, which can solve the slice remapping problem.
To solve the above technical problem, embodiments of the present invention provide the following technical solutions:
in one aspect, a slice mapping remapping method is provided, which is applied to an access network element, and the method includes:
slice mapping information and/or slice remapping information for a slice is received.
Further, the method further comprises:
remapping the slice to other slices.
Further, the slice mapping information includes slice mapping policy information; the slice remapping information comprises slice remapping policy information.
Further, the access network element performs slice remapping based on one or more of the following information: slice identification information, slice characteristic information, slice index information, and slice remapping strategy.
Further, the slice identification information is network slice selection auxiliary information NSSAI; and/or
The slice characteristic information includes at least one of: service continuity information or slice continuity information, service QoS parameter information or slice QoS information; and/or
The slice index information is slice load information.
Further, the mapping policy of the slice is pre-configured in the access network element or received from other devices;
the other device includes at least one of: user terminal, other access network elements, core network elements and network management.
Further, the access network element receives the mapping policy of the slice through a PDU session management procedure, a user context management procedure, a user mobility procedure, a paging procedure, a non-access stratum NAS message transmission procedure, an interface management procedure, a user capability management procedure, and/or a configuration transfer procedure.
Further, the access network element receives the mapping policy of the slice sent by the core network element through an interface establishment response, an initial user context establishment, a user context modification request, a handover request, a session establishment request, a session modification request, a session establishment notification, a session modification notification, a session establishment indication, a session modification indication, a handover command, a path handover request acknowledgement PATH SWITH REQUEST NOWLGENT, a page, a downlink NAS transmission, an interface establishment response, a RAN configuration update acknowledgement, an AMF configuration update and/or a user capability check response.
Further, the access network element updates and receives the mapping policy of the slice sent by other access network elements through a handover request, an access network paging, a user context extraction response, a secondary base station addition request, a secondary base station modification request, a secondary base station replacement confirmation, an interface establishment request, an interface establishment response and/or an access network node.
Further, the access network element receives a slice mapping policy sent by the user terminal through RRC signaling.
Further, the access network element receives a slice mapping policy sent by the network manager through the network manager configuration message.
Further, the mapping strategy of the slice includes:
remapping the slice to other slices, and/or rejecting the slice.
Further, when the slice is not supported by the access network element and the access network element does not configure a slice support capability corresponding to the slice, the mapping policy of the slice further includes: the access network element temporarily configures slice support capability corresponding to the slice and/or remaps the slice to other slices;
and/or
When the slice is not supported by the access network element and the access network element does not support the resource of the slice, the mapping policy of the slice further includes: the access network element sets an address resolution protocol for the slice so that the slice can preempt resources and/or remap the slice to other slices, and the requirements of the other slices on the resources are lower than the requirements of the slice on the resources;
when the serving access network element does not configure the slice support capability, the slice mapping policy further includes: and the access network element temporarily configures the slice support capability corresponding to the slice.
Further, the traffic QoS parameter information or the slice QoS information includes traffic reliability parameter information and/or slice reliability information.
The embodiment of the invention also provides an access network element, which comprises a processor and a transceiver,
the transceiver is configured to receive slice mapping information and/or slice remapping information for a slice.
Further, the processor is configured to remap the slice to other slices.
Further, the slice mapping information includes slice mapping policy information; the slice remapping information comprises slice remapping policy information.
Further, the processor is specifically configured to perform slice remapping based on one or more of the following information: slice identification information, slice characteristic information, slice index information, and slice remapping strategy.
Further, the slice identification information is network slice selection auxiliary information NSSAI; and/or
The slice characteristic information includes at least one of: service continuity information or slice continuity information, service QoS parameter information or slice QoS information; and/or
The slice index information is slice load information.
Further, the mapping policy of the slice is pre-configured in the access network element or received from other devices;
the other device includes at least one of: user terminal, other access network elements, core network elements and network management.
Further, the transceiver is specifically configured to receive the mapping policy of the slice through a PDU session management procedure, a user context management procedure, a user mobility procedure, a paging procedure, a non-access stratum NAS message transmission procedure, an interface management procedure, a user capability management procedure, and/or a configuration transfer procedure.
Further, the transceiver is specifically configured to receive the mapping policy of the slice sent by the core network element through an interface establishment response, an initial user context establishment, a user context modification request, a handover request, a session establishment request, a session modification request, a session establishment notification, a session modification notification, a session establishment indication, a session modification indication, a handover command, a path handover request acknowledgement PATH SWITH request for new node location, a page, a downlink NAS transport, an interface establishment response, a RAN configuration update acknowledgement, an AMF configuration update, and/or a user capability check response.
Further, the transceiver is specifically configured to receive, through a handover request, an access network page, a user context extraction response, a secondary base station addition request, a secondary base station modification request, a secondary base station replacement confirmation, an interface establishment request, an interface establishment response, and/or an access network node update, a mapping policy of a slice sent by another access network element.
Further, the transceiver is specifically configured to receive, through RRC signaling, a mapping policy of a slice sent by a user terminal.
Further, the transceiver is specifically configured to receive, through a network management configuration message, a mapping policy of a slice sent by a network management.
Further, the mapping strategy of the slice includes:
remapping the slice to other slices, and/or rejecting the slice.
Further, when the slice is not supported by the access network element and the access network element does not configure a slice support capability corresponding to the slice, the mapping policy of the slice further includes: the access network element temporarily configures slice support capability corresponding to the slice and/or remaps the slice to other slices;
and/or
When the slice is not supported by the access network element and the access network element does not support the resource of the slice, the mapping policy of the slice further includes: the access network element sets an address resolution protocol for the slice so that the slice can preempt resources and/or remap the slice to other slices, and the requirements of the other slices on the resources are lower than the requirements of the slice on the resources;
when the serving access network element does not configure the slice support capability, the slice mapping policy further includes: and the access network element temporarily configures the slice support capability corresponding to the slice.
Further, the traffic QoS parameter information or the slice QoS information includes traffic reliability parameter information and/or slice reliability information.
The embodiment of the invention also provides an access network element, which comprises a memory, a processor and a computer program which is stored on the memory and can be run on the processor; the processor, when executing the program, implements the slice map remapping method as described above.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the slice mapping remapping method as described above.
The embodiment of the invention has the following beneficial effects:
in the above scheme, when the slice is remapped, the access network element receives the slice mapping information and/or the slice remapping information of the slice, so that the access network remaps the slice to other slices according to the slice mapping information and/or the slice remapping information, and the problem that the current network slice of the user terminal may face remapping based on unbalanced distribution of the network slice between sites is solved.
Drawings
FIG. 1 is a flowchart illustrating a slice mapping remapping method according to an embodiment of the invention;
FIG. 2 is a diagram illustrating a user terminal moving out of a currently sliced service area in the prior art;
FIG. 3 is a diagram illustrating a slice mapping strategy according to an embodiment of the present invention;
fig. 4 is an interaction diagram of an access network element, other access network elements, and a core network element according to an embodiment of the present invention;
fig. 5 is an interaction diagram of an access network element, a core network element and a user terminal according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an access network element according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention provides a slice mapping remapping method and an access network element, which can solve the remapping problem of slices.
An embodiment of the present invention provides a slice mapping remapping method, which is applied to an access network element, and as shown in fig. 1, the method includes:
step 101: slice mapping information and/or slice remapping information for a slice is received.
In this embodiment, when a slice is remapped, the access network element receives slice mapping information and/or slice remapping information of the slice, so that the access network remaps the slice to other slices according to the slice mapping information and/or the slice remapping information, and a problem that a current network slice of the user terminal may face remapping based on unbalanced distribution of the network slice between sites is solved.
Further, the method further comprises:
remapping the slice to other slices.
Further, the slice mapping information includes slice mapping policy information; the slice remapping information comprises slice remapping policy information.
Further, the access network element performs slice remapping based on one or more of the following information: slice identification information, slice characteristic information, slice index information, and slice remapping strategy.
Further, the slice identification information is network slice selection auxiliary information NSSAI; and/or
The slice characteristic information includes at least one of: service continuity information or slice continuity information, service QoS parameter information or slice QoS information; and/or
The slice index information is slice load information.
Further, the mapping policy of the slice is pre-configured in the access network element or received from other devices;
the other device includes at least one of: user terminal, other access network elements, core network elements and network management.
Further, the access network element receives the mapping policy of the slice through a PDU session management procedure, a user context management procedure, a user mobility procedure, a paging procedure, a non-access stratum NAS message transmission procedure, an interface management procedure, a user capability management procedure, and/or a configuration transfer procedure.
Further, the access network element receives the mapping policy of the slice sent by the core network element through an interface establishment response, an initial user context establishment, a user context modification request, a handover request, a session establishment request, a session modification request, a session establishment notification, a session modification notification, a session establishment indication, a session modification indication, a handover command, a path handover request acknowledgement PATH SWITH REQUEST NOWLGENT, a page, a downlink NAS transmission, an interface establishment response, a RAN configuration update acknowledgement, an AMF configuration update and/or a user capability check response.
Further, the access network element updates and receives the mapping policy of the slice sent by other access network elements through a handover request, an access network paging, a user context extraction response, a secondary base station addition request, a secondary base station modification request, a secondary base station replacement confirmation, an interface establishment request, an interface establishment response and/or an access network node.
Further, the access network element receives a slice mapping policy sent by the user terminal through RRC signaling.
Further, the access network element receives a slice mapping policy sent by the network manager through the network manager configuration message.
Further, the mapping strategy of the slice includes:
remapping the slice to other slices, and/or rejecting the slice.
Further, when the slice is not supported by the access network element and the access network element does not configure a slice support capability corresponding to the slice, the mapping policy of the slice further includes: the access network element temporarily configures slice support capability corresponding to the slice and/or remaps the slice to other slices;
and/or
When the slice is not supported by the access network element and the access network element does not support the resource of the slice, the mapping policy of the slice further includes: the access network element sets an address resolution protocol for the slice so that the slice can preempt resources and/or remap the slice to other slices, and the requirements of the other slices on the resources are lower than the requirements of the slice on the resources;
when the serving access network element does not configure the slice support capability, the slice mapping policy further includes: and the access network element temporarily configures the slice support capability corresponding to the slice.
Further, the traffic QoS parameter information or the slice QoS information includes traffic reliability parameter information and/or slice reliability information.
As shown in fig. 2, after the user terminal moves out of the service area of the current slice, the slice can be admitted and occupy other slice resources; other slices may also be remapped; slices may also be rejected. For example, for a sliced service requiring isolation of the user terminal, once the user terminal leaves the slice coverage area, the user terminal may not access the corresponding service. At this point the network should reject the slicing request to the user terminal. Or, possibly, the user terminal under a certain slice isolates other related information interaction on the standard interface that may be necessary to implement the corresponding slice policy. However, when the user terminal needs to remap to other slices, the prior art does not provide a mature solution for what the mapping policy of the slice is formulated and configured, who decides, who is assigned, what interactions are involved, and what mapping decision the mapping policy of the slice is based on what inputs to get, what the inputs are, who is provided, and what interactions are involved.
In order to solve the problem that a current network slice of a user terminal may face remapping based on unbalanced distribution of network slices among access network elements, an embodiment of the present invention provides a slice remapping scheme, where an access network element configures a slice supporting capability to support a slice and/or remap the slice to other slices according to information of the slice, a mapping policy of the slice, and a parameter required for slice mapping execution.
The mapping policy of the slice is a mapping relationship policy between slices, or the mapping policy of the slice specifies a default slice, or the mapping policy of the slice is a mapping relationship from APP (service) to the slice, and the mapping policy of the slice may also include a slice rejection policy.
Wherein the information includes service information, and the service information includes at least one of: service continuity information, service QoS parameter information. The service QoS parameter information includes service reliability parameter information.
Further, the service information and the mapping policy of the slice are the service quality indicator of the slice.
Further, the parameters required for the slice mapping execution include at least one of: service identification, remapping optional slice information.
As shown in fig. 3, the mapping strategy of the slice includes: when the slice is not supported by the access network element and the access network element does not configure the slice support capability corresponding to the slice, the access network element temporarily configures the slice support capability corresponding to the slice and/or remaps the slice to other slices; when the slice is not supported by the access network element and the access network element does not support the resource of the slice, the access network element sets an address resolution protocol for the slice so that the slice can preempt the resource and/or remap the slice to other slices, and the requirement of the other slices on the resource is lower than that of the slice.
In a specific embodiment, as shown in fig. 4, an access network element (access network element two) in this embodiment queries, to other access network elements (access network element one) or core network elements, slice information, a mapping policy of a slice, and/or information required for executing the mapping policy of a slice, such as APP ID, and optionally slice information is remapped. In another specific embodiment, as shown in fig. 5, an access network element (access network element one) of this embodiment queries, to a user terminal or a core network element, slice information, a mapping policy of a slice, and/or information required for executing the mapping policy of a slice, such as APP ID, and remaps optional slice information.
Further, the mapping policy of the slice may also be preconfigured in the access network element.
By the technical scheme of the embodiment, the problem of continuity in the moving process of the slicing service can be solved. In a specific scenario, suppose that user 1 moves from base station 1 to base station 2, but its original slice is now not supported by base station 2 for reasons including: if the base station 2 does not configure the corresponding capability, the base station 2 may temporarily configure the corresponding slice support capability, or remap to another slice, or reject the slice; or the base station 2 does not support the slice temporarily because of the resource relation, the base station 2 can set a high ARP, and slice admission can be ensured; or the method can be reversed to obtain the second slice, and the slice with low resource occupation is adopted; or reject the slice. For some slices, better guaranteed service continuity may be needed to guarantee user experience, in which case slices cannot be rejected.
An embodiment of the present invention further provides an access network element, as shown in fig. 6, including a processor 21 and a transceiver 22,
the transceiver 22 is configured to receive slice mapping information and/or slice remapping information for a slice.
In this embodiment, when a slice is remapped, the access network element receives slice mapping information and/or slice remapping information of the slice, so that the access network remaps the slice to other slices according to the slice mapping information and/or the slice remapping information, and a problem that a current network slice of the user terminal may face remapping based on unbalanced distribution of the network slice between sites is solved.
Further, the processor 21 is configured to remap the slice to other slices.
Further, the slice mapping information includes slice mapping policy information; the slice remapping information comprises slice remapping policy information.
Further, the processor 21 is specifically configured to perform slice remapping based on one or more of the following information: slice identification information, slice characteristic information, slice index information, and slice remapping strategy.
Further, the slice identification information is network slice selection auxiliary information NSSAI; and/or
The slice characteristic information includes at least one of: service continuity information or slice continuity information, service QoS parameter information or slice QoS information; and/or
The slice index information is slice load information.
Further, the mapping policy of the slice is pre-configured in the access network element or received from other devices;
the other device includes at least one of: user terminal, other access network elements, core network elements and network management.
Further, the transceiver 22 is specifically configured to receive the mapping policy of the slice through a PDU session management procedure, a user context management procedure, a user mobility procedure, a paging procedure, a non-access stratum NAS message transmission procedure, an interface management procedure, a user capability management procedure, and/or a configuration transfer procedure.
Further, the transceiver 22 is specifically configured to receive the mapping policy of the slice sent by the core network element through an interface setup response, an initial user context setup, a user context modification request, a handover request, a session setup request, a session modification request, a session setup notification, a session modification notification, a session setup indication, a session modification indication, a handover command, a path switch request acknowledgement PATH SWITH request for new node location, a page, a downlink NAS transport, an interface setup response, a RAN configuration update acknowledgement, an AMF configuration update, and/or a user capability check response.
Further, the transceiver 22 is specifically configured to receive, through a handover request, an access network page, a user context extraction response, a secondary base station addition request, a secondary base station modification request, a secondary base station replacement confirmation, an interface establishment request, an interface establishment response, and/or an access network node update, a mapping policy of a slice sent by another access network element.
Further, the transceiver 22 is specifically configured to receive, through RRC signaling, a mapping policy of a slice sent by a user terminal.
Further, the transceiver 22 is specifically configured to receive, through a network management configuration message, a mapping policy of a slice sent by a network management.
Further, the mapping strategy of the slice includes:
remapping the slice to other slices, and/or rejecting the slice.
Further, when the slice is not supported by the access network element and the access network element does not configure a slice support capability corresponding to the slice, the mapping policy of the slice further includes: the access network element temporarily configures slice support capability corresponding to the slice and/or remaps the slice to other slices;
and/or
When the slice is not supported by the access network element and the access network element does not support the resource of the slice, the mapping policy of the slice further includes: the access network element sets an address resolution protocol for the slice so that the slice can preempt resources and/or remap the slice to other slices, and the requirements of the other slices on the resources are lower than the requirements of the slice on the resources;
when the serving access network element does not configure the slice support capability, the slice mapping policy further includes: and the access network element temporarily configures the slice support capability corresponding to the slice.
Further, the traffic QoS parameter information or the slice QoS information includes traffic reliability parameter information and/or slice reliability information.
The embodiment of the invention also provides an access network element, which comprises a memory, a processor and a computer program which is stored on the memory and can be run on the processor; the processor, when executing the program, implements the slice map remapping method as described above.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the slice mapping remapping method as described above.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (30)
1. A slice mapping remapping method applied to an access network element, the method comprising:
slice mapping information and/or slice remapping information for a slice is received.
2. The slice map remapping method of claim 1, said method further comprising:
remapping the slice to other slices.
3. The slice mapping remapping method of claim 1, wherein said slice mapping information comprises slice mapping policy information; the slice remapping information comprises slice remapping policy information.
4. The slice mapping remapping method of claim 2, wherein said access network element performs slice remapping based on one or more of the following information: slice identification information, slice characteristic information, slice index information, and slice remapping strategy.
5. The slice mapping remapping method of claim 4, wherein said slice identification information is network slice selection assistance information NSSAI; and/or
The slice characteristic information includes at least one of: service continuity information or slice continuity information, service QoS parameter information or slice QoS information; and/or
The slice index information is slice load information.
6. The slice mapping remapping method of claim 1, wherein said mapping policy of a slice is pre-configured in said access network element or received from other devices;
the other device includes at least one of: user terminal, other access network elements, core network elements and network management.
7. The slice mapping remapping method of claim 6, wherein said access network element receives said slice mapping policy through a PDU session management procedure, a user context management procedure, a user mobility procedure, a paging procedure, a non-access stratum NAS message transport procedure, an interface management procedure, a user capability management procedure and/or a configuration transfer procedure.
8. The slice mapping remapping method of claim 6, wherein said access network element receives mapping policy of a slice sent by a core network element via an interface setup response, initial user context setup, user context modification request, handover request, session setup request, session modification request, session setup notification, session modification notification, session setup indication, session modification indication, handover command, path switch request acknowledgement PATH SWITH REQUEST NOWLGEMENT, paging, downlink NAS transport, interface setup response, RAN configuration update acknowledgement, AMF configuration update and/or user capability check response.
9. The slice mapping remapping method of claim 6, wherein said access network element updates a mapping policy for receiving slices sent by other access network elements through a handover request, an access network page, a user context extraction response, a secondary base station addition request, a secondary base station modification request, a secondary base station replacement acknowledgement, an interface establishment request, an interface establishment response and/or an access network node.
10. The slice mapping remapping method of claim 6, wherein said access network element receives a mapping policy of a slice sent by a user terminal through RRC signaling.
11. The slice mapping remapping method of claim 6, wherein said access network element receives a mapping policy of a slice sent by a network manager through a network manager configuration message.
12. The slice mapping remapping method of claim 1, wherein said slice mapping strategy comprises:
remapping the slice to other slices, and/or rejecting the slice.
13. The slice mapping remapping method of claim 12, wherein when said slice is not supported by said access network element and said access network element is not configured with a slice support capability corresponding to said slice, said mapping policy of said slice further comprises: the access network element temporarily configures slice support capability corresponding to the slice and/or remaps the slice to other slices;
and/or
When the slice is not supported by the access network element and the access network element does not support the resource of the slice, the mapping policy of the slice further includes: the access network element sets an address resolution protocol for the slice so that the slice can preempt resources and/or remap the slice to other slices, and the requirements of the other slices on the resources are lower than the requirements of the slice on the resources;
when the serving access network element does not configure the slice support capability, the slice mapping policy further includes: and the access network element temporarily configures the slice support capability corresponding to the slice.
14. The slice mapping remapping method of claim 5, wherein said traffic QoS parameter information or slice QoS information comprises traffic reliability parameter information and/or slice reliability information.
15. An access network element comprising a processor and a transceiver,
the transceiver is configured to receive slice mapping information and/or slice remapping information for a slice.
16. The access network element of claim 15, wherein the processor is configured to remap the slice to other slices.
17. The access network element of claim 15, wherein the slice mapping information comprises slice mapping policy information; the slice remapping information comprises slice remapping policy information.
18. The network element of claim 16, wherein the processor is specifically configured to perform slice remapping based on one or more of the following information: slice identification information, slice characteristic information, slice index information, and slice remapping strategy.
19. The network element of claim 18, wherein the slice identification information is network slice selection assistance information NSSAI; and/or
The slice characteristic information includes at least one of: service continuity information or slice continuity information, service QoS parameter information or slice QoS information; and/or
The slice index information is slice load information.
20. The access network element of claim 15, wherein the mapping policy for the slice is pre-configured in the access network element or received from another device;
the other device includes at least one of: user terminal, other access network elements, core network elements and network management.
21. The access network element of claim 20, wherein the transceiver is specifically configured to receive the sliced mapping policy via a PDU session management procedure, a user context management procedure, a user mobility procedure, a paging procedure, a non-access stratum, NAS, message transport procedure, an interface management procedure, a user capability management procedure, and/or a configuration transfer procedure.
22. The access network element of claim 20, wherein the transceiver is specifically configured to receive the mapping policy for the slice sent by the core network element via an interface setup response, an initial user context setup, a user context modification request, a handover request, a session setup request, a session modification request, a session setup notification, a session modification notification, a session setup indication, a session modification indication, a handover command, a path switch request acknowledgement PATH SWITH REQUEST NOWLGEMENT, a page, a downlink NAS transport, an interface setup response, a RAN configuration update acknowledgement, an AMF configuration update, and/or a user capability check response.
23. The access network element of claim 20, wherein the transceiver is specifically configured to receive the mapping policy of the slice sent by the other access network element via a handover request, an access network page, a user context extraction response, a secondary base station addition request, a secondary base station modification request, a secondary base station replacement acknowledgement, an interface establishment request, an interface establishment response, and/or an access network node update.
24. The network element of access network of claim 20, wherein the transceiver is specifically configured to receive the mapping policy of the slice sent by the user terminal through RRC signaling.
25. The network element of claim 20, wherein the transceiver is specifically configured to receive a mapping policy of a slice sent by a network manager through a network management configuration message.
26. The network element of claim 15, wherein the sliced mapping policy comprises:
remapping the slice to other slices, and/or rejecting the slice.
27. The network element of claim 26, wherein when the slice is not supported by the network element and the network element is not configured with a slice support capability corresponding to the slice, the mapping policy for the slice further comprises: the access network element temporarily configures slice support capability corresponding to the slice and/or remaps the slice to other slices;
and/or
When the slice is not supported by the access network element and the access network element does not support the resource of the slice, the mapping policy of the slice further includes: the access network element sets an address resolution protocol for the slice so that the slice can preempt resources and/or remap the slice to other slices, and the requirements of the other slices on the resources are lower than the requirements of the slice on the resources;
when the serving access network element does not configure the slice support capability, the slice mapping policy further includes: and the access network element temporarily configures the slice support capability corresponding to the slice.
28. The network element of claim 19, wherein the traffic QoS parameter information or the slice QoS information comprises traffic reliability parameter information and/or slice reliability information.
29. An access network element comprising a memory, a processor and a computer program stored on said memory and executable on said processor; wherein the processor, when executing the program, implements the slice map remapping method of any one of claims 1-14.
30. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the slice map remapping method of any one of claims 1-14.
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| WO2020034983A1 (en) | 2020-02-20 |
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