CN108401275A - user equipment registration method, network controller and network communication system - Google Patents
user equipment registration method, network controller and network communication system Download PDFInfo
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- 238000004891 communication Methods 0.000 title abstract description 3
- 230000004044 response Effects 0.000 claims abstract description 30
- 238000007726 management method Methods 0.000 claims description 42
- 230000005540 biological transmission Effects 0.000 claims description 34
- 230000008569 process Effects 0.000 claims description 29
- 238000003860 storage Methods 0.000 claims description 9
- 238000013523 data management Methods 0.000 claims description 8
- 230000003993 interaction Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 8
- 230000005484 gravity Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
Abstract
A user equipment registration method, a network controller and a network communication system for selecting a network slice are provided. The method comprises the following steps: receiving a registration request of a User Equipment (UE); in response to receiving a registration request including slice selection information, determining whether the UE is capable of serving according to the slice selection information, and transmitting a first network function discovery request including the slice selection information or a second network function discovery request for finding a target access and mobility management function; after receiving a network function discovery reply corresponding to the first network function discovery request, selecting a network function for serving the UE according to the network function discovery reply to perform a registration setting operation, or after receiving another network function discovery reply corresponding to the second network function discovery request, transmitting an interface connection release message to the access node.
Description
Technical field
The present invention is about a kind of user equipment registration method to select network to be sliced and using the network of the method
Controller and network communicating system.
Background technology
In nearest trend, in order to support the 5th Generation Mobile Communication System (5th generation mobile
Networks, 5G) different service requests, network slice be a solution.Network operator can pass through software definition
Network (Software-Defined Networking, SDN) and network function virtualize (Network Function
Virtualization, NFV) etc. tools carry out network slice, a physical network, which is divided into multiple corresponding differences, answers
With the virtual logical network of service context.Be sliced by network, 5G networks can be directed to the following diversification using situation provide optimization,
Has the communication service of dynamic and elasticity.
UE in 5G networks can access multiple and different network slices, these networks slice can respectively provide different answer
With service.Similar to existing network communicating system, the UE under 5G networks can equally be registered to network.Also that is, asking
Before asking these networks slice to provide the service that registration limits, UE can be to 5G network registries.If UE to 5G network registries it
Afterwards, UE can be immediately accessed to the network for meeting demand and is sliced, and UE can be allow to be carried as early as possible using 5G networks according to its permission
The service of confession.Therefore, how to be the most appropriate network slice of user equipment selection in real time, to match the service class of user equipment
Type and working condition, actually one of those skilled in the art's important issue of concern.
Invention content
In view of this, the present invention provide it is a kind of to select network be sliced user equipment registration method and use this side
The network controller and network communicating system of method.
The present invention provides a kind of user equipment registration method to select network to be sliced, and is suitable for having and accesses and mobile
The network controller of management function, the method includes but be not limited to：The registration request for receiving user equipment, wherein the registration
Request includes slice selection information；In response to receiving the registration request, judge whether have according to slice selection information
Service the ability of the user equipment, and transmit include the slice selection information first network function explore ask or to
The second network function for finding target access and mobile management function explores request；And correspond to the first network receiving
After function explores the network function exploration reply of request, is explored according to the network function and reply selection to service the use
The network function of family equipment and execute registration setting operation with selected network function, or correspond to the second network function receiving
After another network function exploration reply for exploring request, transmission interface Connection Release information to access node.
The present invention provides a kind of network controller, can be a part for network communicating system.Network controller includes
But it is not limited to：Transceiver and processor.Processor is coupled to transceiver.Processor is configured at least execute：Receive user
The registration request of equipment, wherein the registration request includes slice selection information；In response to receiving the registration request, according to institute
Slice selection information is stated to judge whether with the ability for servicing the user equipment, and it includes the slice selection information to transmit
First network function explores request or explores request to the second network function for finding target access and mobile management function；With
And after receiving the network function exploration for corresponding to first network function exploration request and replying, according to the network function
It explores to reply and selects to execute registration setting operation with selected network function to service the network function of the user equipment,
Or after receiving another network function exploration for corresponding to the exploration request of the second network function and replying, transmission interface Connection Release
Information is to access node.
The present invention provides a kind of network communicating system comprising but be not limited to：First network controller and the second network control
Device processed.Second network controller is connected to first network controller.First network controller receives the registration request of user equipment,
Wherein registration request includes slice selection information.First network controller is in response to receiving registration request, according to slice selection letter
Breath judges whether the ability with served user equipment, and it includes that slice selects the first network function exploration of information to ask to transmit
It asks.It includes that slice selects the first network function of information to explore request, and believes according to slice selection that second network controller, which receives,
Breath determines the candidate network function of being associated with candidate network slice.Second network controller corresponds to first network work(by transmission
The network function that request can be explored explores reply, and provides candidate network function and give first network function.In first network control
Device reception processed corresponds to after the network function exploration reply that first network function explores request, and first network controller is according to net
Network function explores the network function for replying selection to served user equipment, to execute registration setting behaviour with selected network function
Make.
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and coordinate institute's accompanying drawings
It is described in detail below.
Description of the drawings
Fig. 1 is a kind of point-to-point framework of 5G networks.
Fig. 2 is a kind of service type framework of 5G networks.
Fig. 3 is the registration management state model in UE.
Fig. 4 is the user equipment registration method reconfigured without reference to AMF depicted in an embodiment according to the present invention
Schematic diagram.
Fig. 5 is the signal for being related to the user equipment registration method that AMF is reconfigured depicted in an embodiment according to the present invention
Figure.
Fig. 6 is the signal for being related to the user equipment registration method that AMF is reconfigured depicted in an embodiment according to the present invention
Figure.
Fig. 7 is the signal of the user equipment registration method about mobile registration depicted in an embodiment according to the present invention
Figure.
Fig. 8 is the signal of the user equipment registration method about mobile registration depicted in an embodiment according to the present invention
Figure.
Fig. 9 is the flow chart of the user equipment registration method depicted in an embodiment according to the present invention.
Figure 10 is the flow chart of the user equipment registration method depicted in an embodiment according to the present invention.
Figure 11 is the block diagram of the network controller depicted in an embodiment according to the present invention.
Symbol description
10：Point-to-point framework
20：Service type framework
101：User equipment
102：(wireless) access network
103：User-plane function
104：It accesses and mobile management function
105：Conversation management functional
106：Policy management function
107：Data network
108：Application function
109：Network is sliced selection function
110：Authentication server functions
111：Uniform data management
112：Network function storage function
113：Network exposing functional
301：Registration management-not registered state
302：Registration management-login state
S401~S415, S501~S519, S601~S621, S701~S716, S801~S817, S901~S903,
S1001~S1002：Step
1100：Network controller
1200：Accessing points
1101：Transceiver
1102：Processor
R2：Registration request
Specific implementation mode
Next the section Example of the present invention will coordinate attached drawing to be described in detail, the element cited in description below
Symbol will be regarded as same or analogous element when identical component symbol occur in different attached drawings.These embodiments are the present invention
A part, do not disclose the embodiment of all present invention.In fact, many can be used not in various embodiments of the present invention
It is embodied with form, and should not be construed as limited to the embodiment illustrated in the disclosure.
In an embodiment of the present invention, the definition of term " network slice " (Network slice) for example can refer to " 3GPP
23.501 " specifications of TS.Network slice is the logical network that can provide particular network ability and network characteristic, network slice systems
Network appropriate can be selected to be sliced according to the service type that UE needs.For 5G networks, network slice can be considered 5G nets
A group network function (Network Function, NF) is formed by logical network in network.
In an embodiment of the present invention, the definition of term " network function " (Network Function, NF) can for example be joined
According to " 3GPP TS 23.501 " specification.The network function is, for example, the network element that may include in (but not limited to) specific hardware
Part, the software entity executed on specific hardware or the virtual functions realized on appropriate platform (such as high in the clouds infrastructure).
Fig. 1 depicts two kinds of different frameworks of 5G networks from Fig. 2 respectively.Fig. 1 is a kind of point-to-point framework of 5G networks
(Point-to-point architecture), and Fig. 2 is a kind of service type framework (Service-based of 5G networks
architecture).Please refer to Fig. 1 and Fig. 2, point-to-point framework 10 and the network entity and network function in service type framework 20
It may include：User equipment (User Equipment, UE) 101, (wireless) access network ((Radio) Access node, (R)
AN) 102, user-plane function (User plane Function, UPF) 103, access and mobile management function (Access and
Mobility Management Function, AMF) 104, conversation management functional (Session Management
Function, SMF) 105, policy management function (Policy Control function, PCF) 106, data network (Data
Network, DN) 107, application function (Application Function, AF) 108, network slice selection function (Network
Slice Selection Function, NSSF) 109, authentication server functions (Authentication Server
Function, AUSF) 110, uniform data management (Unified Data Management, UDM) 111, network function store work(
Can (NF Repository Function, NRF) 112 and network exposing functional (Network Exposure Function,
NEF)113.UE 101 can be come via (R) AN 102 is connected to by the network function of the responsible different business service in 5G networks
Service, to be communicated with other devices in DN 107.Fundamental norms for 5G networks and definition can refer to " 3GPP TS
23.501V0.1.1”。
Fig. 1 is please referred to, Fig. 1 depicts the point-to-point framework 10 in the case of non-roaming (non-roaming).Point-to-point framework
10 display outgoing interface interactions are present between network function service, and the above-mentioned interface interaction between two network functions is to be based on point
It is defined to Jie's point (point-to-point reference point).For example, the N11 between AMF 104 and SMF 105
Jie's point.Fig. 2 is please referred to, Fig. 2 depicts the service type framework 20 in the case of non-roaming (non-roaming).Service type framework 20
Network function in middle control plane access control can be put down by service type interface (service-based interfaces)
The service of other network functions on face.For example, AMF 104 can come enable, other authorize network work(by service type interface Namf
The service of the offers of AMF 104 can be provided.When executing various system programs, the interaction between these network functions is transmitted with information
It can refer to " 3GPP TS 23.501V0.1.1 " and " 3GPP TS 23.502V0.1.1 " specification.
Network slice can be considered the logical network made of these above-mentioned network function institute construction.Different types of network is cut
Piece supports different demands for services, therefore user equipment needs to access to the network for meeting its demand for services slice to obtain suitably
5G network services.After the business demand in response to UE picks out network slice, correspond to the network of selected network slice
Therefore function can also determine according to this.
In an embodiment of the present invention, term " user equipment " (UE) can indicate various embodiments, be, for example, that may include
(but not limited to) mobile station, advanced mobile station (advanced mobile station, AMS), server, client, desktop
Computer, laptop computer, network computer, work station, personal digital assistant (personal digital
Assistant, PDA), tablet-type personal computer (personal computer, PC), scanner, telephone device, beeper,
Camera, TV, handheld video game device, music apparatus, wireless sensor and so on.In some applications, UE can
For the fixed computer device operated in the mobile environment such as such as bus, train, aircraft, ship, automobile.
In an embodiment of the present invention, (wireless) of the core network (Core Network, CN) between UE in 5G networks
It includes an at least access node to access network ((R) AN) (such as (R) AN 102 of Fig. 1 and Fig. 2), and UE can be wire or wirelessly
The access node in (R) AN is connected to obtain 5G network services.For example, (R) AN of 5G networks may include nothing of new generation
Line access node (NG-RAN node) seems next-generation node B (gNodeB or gNB).Alternatively, (R) AN of 5G networks can also be wrapped
Include family expenses evolved node B (Home Evolved Node B, HeNB), evolution node B (eNB) or non-3 GPP access node etc..
Fig. 3 is the registration management state model in UE.Fig. 3 is please referred to, UE can be in the non-registered (RM- of registration management-
DEREGISTERED) switch between state 301 and registration management-registration (RM-REGISTERED) state 302.When UE is in RM-
DEREGISTERED states 301, UE may execute following operation.When UE is in RM-DEREGISTERED states 301, if UE thinks
The service that registration limits is obtained, UE will be tasted by accreditation process for the first time (Initial Registration Procedure)
It tries to register to public land mobile network network (Public land mobile network, PLMN).When UE is in RM-
DEREGISTERED states 301, if UE receives the registration reject information of accreditation process for the first time, UE can be maintained at RM-
DEREGISTERED states 301.When UE is in RM-DEREGISTERED states 301, if UE receives the registration of accreditation process for the first time
Information is received, UE will enter from RM-DEREGISTERED states 301 in RM-REGISTERED states 302.
On the other hand, when UE is in RM-REGISTERED states 302, UE may execute following operation.When UE is in RM-
REGISTERED states 302, if the current TAI of serving cell is not appeared in the TAI lists stored by UE, UE will be executed
Mobile accreditation process (or being referred to as mobile register update program).When UE is in RM-REGISTERED states 302, UE may also
Periodically or non-periodically register update program is executed, it is that active is still with informing network UE or renegotiate with network
Protocol parameter.When UE is in RM-REGISTERED states 302, UE can perform deregistration procedure (Deregistration
Procedure) and from RM-REGISTERED states 302 enter RM-DEREGISTERED states 301, or registered in response to receiving
Refuse information or log-off message and enters RM-DEREGISTERED states 301 from RM-REGISTERED states 302.
In an embodiment of the present invention, a kind of accreditation process to assist UE selections/gravity treatment that network is taken to be sliced is suggested.
In other words, the accreditation process registered to 5G networks can be used to that UE is assisted to choose network slice appropriate.In the reality of the present invention
It applies in example, the accreditation process to assist UE selections/gravity treatment that network is taken to be sliced may include that UE is in RM-DEREGISTERED states
(for example, UE is just switched on) and the accreditation process for the first time executed, or because UE be moved to different trace regions (Tracking Area,
TA the mobile accreditation process (Mobility Registration procedure)) executed.
In an embodiment of the present invention, a kind of network communicating system of e.g. 5G network systems, which includes at least, has first
The first network controller of network function and the second network controller of the second network function.Second on second network controller
Network function can be connected to the first network function of first network controller via software definition interface or entity interface.First
Network function receives the registration request of UE, and wherein registration request includes slice selection information.First network functional response is in reception
The registration request of UE judges whether the ability with service UE according to slice selection information, and it includes slice selection information to transmit
First network function explore request (Network Function Discovery Request).Second network function receives packet
The first network function of including slice selection information explores request, and is associated with candidate network slice according to slice selection information decision
Candidate network function.The network function that second network function corresponds to the exploration request of first network function by transmission is explored back
Multiple (Network Function Discovery Response), and candidate network function is provided and gives first network function.
One network function receive correspond to first network function explore request network function explore reply after, first network function according to
It is explored according to network function and replys selection to service the network function of UE, to execute registration setting behaviour with selected network function
Make.Thereby, the network communicating system of the embodiment of the present invention can pick out the network slice of suitable UE during the accreditation process of UE.
In order to further clearly illustrate the embodiment of the present invention, introduces be related to by taking the 5G network architectures 20 of Fig. 2 as an example below
The various network functions of accreditation process.In an embodiment of the present invention, aforementioned receiving the first network function of registration request
Can be AMF (Access and Mobility Function) 104, AMF 104 it be RAN control planes (CP) interface and non-visit
It asks the terminal of a layer information (Non Access Stratum message, NAS message), is responsible for managing with the relevant registrations of UE
Reason, connection management, with mobile management.In addition, AMF 104 can also be responsible for and the relevant access mandates of UE and access registrar.Yu Yi
In embodiment, AMF 104 can be a network controller for having access and mobile management function.
In an embodiment of the present invention, aforementioned second network function can be NRF 112, and NRF 112 can support service to visit
Suo Gongneng, and provided in response to receiving network function exploration request (NF Discovery Request) from other network functions
The information of network function is explored to other network functions.In addition, NRF112 can safeguard the network function shelves of network functional entity
The service that case (NF profile) and network functional entity are supported.In an embodiment, NRF 112 can one have clothes
The network controller of function is explored in business.
In an embodiment of the present invention, SMF 105 can be responsible for the setting of some user planes, UPF 103 and RAN node it
Between packet data unit (Packet data unit, PDU) session foundation, modification and release, seem determine package road
By path.UPF 103 can be responsible for routing and turn biography of package, for handover within/between processing radio access technologies
The positioning anchor point of (Intra-/Inter-RAT mobility), the also external PDU sessions point to be interconnected with DN 107.Yu Yishi
It applies in example, SMF 105 can be a network controller for having conversation management functional, and UPF 103 can one have user
The network controller of plane function.
In an embodiment of the present invention, PCF 106 can support to unify policy framework to manage network behavior, and provide policy
Rule is abided by the network function in control plane.AUSF 110 can be used to whether certification UE is legal service requester,
It supports the authentication server functions that SAWG3 working groups formulate.UDM 111 can support Service Ticket storage and processing function,
It can store for the long-term of authentication and key protocol (Authentication and Key Agreement, AKA) certification
Save voucher from damage.Also that is, UDM 111 can be used to store some authentication datas related with UE.In an embodiment, PCF 106 can
To be a network controller for having policy management function, and UDM 111 can be a net for having uniform data management function
Network controller.
Fig. 4 is the schematic diagram of the user equipment registration method depicted in an embodiment according to the present invention.The implementation example of Fig. 4
It is to be illustrated with accreditation process for the first time, but the present invention is not restricted to this.Fig. 4 is please referred to, is transmitted in step S401, UE 101
Registration request and some accessed node parameters to (R) AN 102, this registration request include slice selection information.This slice selection letter
Breath can be network slice selection assistance information (Network Slice Selection Assistance Information,
NSSAI).In this, (R) AN 102 to receive registration request can be considered the access node in access network.
In an embodiment of the present invention, above-mentioned registration request can further include registration type, user's permanent identifier
(Subscriber Permanent Identifier, SUPI), tentative user identification code (Temporary User ID) (such as
The unique temporarily other code (5G-Globally Unique Temporary ID, 5G-GUTI) in the whole world 5G), security parameter, previous make
TAI, PDU session status of visit etc..In addition, some accessed node parameters about RAN, seem selected PLMN identification codes, small
Area's identification code, location information or RAT types etc., it is also possible to be sent to together to (R) AN 102 with registration request.It must note
It anticipates, the registration type in registration request can be used to indicate that UE is to execute accreditation process, mobile accreditation process, or week for the first time
Phase property accreditation process.
In an embodiment of the present invention, network slice selection assistance information (NSSAI) can be used to identify network slice.Network
Slice selection assistance information for example may include slice/service type (Slice/Service Type, SST) and service auxiliary information
(Slice Differentiator, SD).Slice/service type to indicate UE want access network slice type, and
Service auxiliary information can further distinguish the slice of the network under same slice/service type.Table 1 is different slice/services
A kind of example of type and the correspondence of SST indicated values.
Table 1
In response to receiving the registration request of the transmissions of UE 101, the selection of AMF is carried out in step S402, (R) AN 102.It
Afterwards, in step S403, (R) AN 102 transmits the registration request of UE 101 to initial AMF 104.In an embodiment of the present invention,
(R) AN 102 can select AMF appropriate according to the NSSAI in registration request.It is provided if (R) AN 102 can not be based on UE 101
NSSAI select AMF appropriate, then the UE information (that is, registration request) sent can be transferred to one by (R) AN 102
Default AMF.Above-mentioned default AMF can be one have an AMF selection functions be configured AMF.
Then, registration request is received in response to initial AMF 104, judges whether have in step S404, initial AMF 104
Service the ability of UE 101.In an embodiment of the present invention, when by (R) AN 102 determine Lai initial AMF 104 receive
Registration request, initial AMF 104 can inquire subscription information (subscriptions of the UDM 111 about UE
information).Later, the NSSAI and UE subscription information that initial AMF 104 can be provided according to UE 101 is verified, with
Confirm whether oneself has the qualification of service UE 101.
In the flow example of Fig. 4, it is assumed that initial AMF 104 confirms that oneself has service UE in step S404
101 ability.Under the premise of herein, transmits network function in step S405, initial AMF 104 and explore request to NRF 112, this net
Network function explores request and may include NSSAI and other registration relevant informations.In an embodiment of the present invention, initial AMF 104 can
Service (Nnrf_NFDiscovery Service) is explored come the network function for utilizing NRF 112 to be provided by Nnrf interfaces,
It is sent to NRF 112 so that the network function for carrying NSSAI is explored request.In this, Nnrf interfaces are NRF 112 receiving and dispatching letter
The service type interface of breath allows other network functions that can access function (such as Fig. 2 institutes that NRF 112 is provided via Nnrf interfaces
Show).
Network function is received in response to NRF 112 and explores request, will be handled in registration request in step S406, NRF 112
Parameter, and determine to be associated at least candidate network slice according to NSSAI and other log-on messages in registration request
An at least candidate network function.Then, network function is corresponded to by transmission in step S407, NRF 112 and explores request
Network function, which is explored, replys, and provides candidate network function to initial AMF 104.
In an embodiment of the present invention, NRF 112 can be obtained according to the NSSAI in registration request with other information
Candidate network slice information, seems slice type, the slice identification code of candidate network slice, or is associated with candidate network slice
Candidate SMF, candidate PCF, candidate UDM etc..In other words, NRF 112 can select symbol according to the NSSAI in registration request to realize
Close the function of the network slice of UE demands.After NRF 112 determines candidate network function, NRF 112 will transmit network work(
The network function exploration that request can be explored returns back to initial AMF 104.At this point, the network function that NRF 112 is replied is explored back
It may include the address information of an at least candidate network function for candidate network slice again.For example, the net that NRF 112 is replied
Network function explores the IP address or Fully-Qualified Domain Name (Fully Qualified Domain replied and may include candidate network function
Name, FQDN).
Specifically, since NRF 112 can safeguard the network function archives (NF profile) of each network functional entity,
And the network function archives (NF profile) of a network functional entity may include that NF entity identifiers, NF types, PLMN know
Other code, network slice associated identification code, FQDN or IP address, NF special services authentication information, support Service name at NF ability informations
Claim etc..Therefore, after NRF 112 determines candidate network slice according to NSSAI, NRF 112 can be sieved according to NF profile
Select the one or more candidate network functions being sliced about one or more candidate networks.Then, NRF 112 can be according to candidate
NF profile corresponding to network function and the FQDN or IP address for obtaining candidate network function, and pass through network function in turn
It explores and replys and the FQDN of candidate network function or IP address are returned into initial AMF 104.
After receiving the network function exploration for corresponding to network function exploration request and replying, in step S408, initial AMF
104 explore reply selection to service one or more network functions of UE 101 according to network function.In the implementation of the present invention
In example, the network function exploration by receiving to provide candidate network function is replied, such as the relevant information of foundation UE 101,
The information such as the associated identification code of network residing for UE 101, local operator's policy (Local operator policies), initially
AMF 104 can pick out to service the network function of UE 101 from candidate network function.For example, NRF 112 can be carried
Initial AMF 104 is given for the address information of multiple candidate AUSF, and initial AMF 104 can be picked out according to the SUPI of UE 101
To service the AUSF 110 of UE 101.
In the exemplary embodiment of Fig. 4, the network function to service UE 101 that initial AMF 104 is selected may include
AUSF 110, UDM 111, PCF 106 and SMF 105.Later, in step S409~S412, initial AMF 104 can with by
Each network function selected initial AMF 104 executes registration setting operation.
Certification and security procedure can be executed in step S409, initial AMF 104 with selected AUSF 110.In step
S410, initial AMF 104 can be with selected 111 execution positions of UDM more new procedures.It can be assisted in step S411, initial AMF 104
It helps selected PCF 106 to execute UE contexts and establishes (UE contest establishment).In step S412, initial AMF
104 can perform the setting program about PDU states with selected SMF 105.
In the accreditation process of the embodiment of the present invention, the implementation of step S413 is selective.When UE 101 provide it is adjoint
When the service request information of registration request, relevant UPF can be set in step S413, SMF 105.Otherwise, step S413 can
To ignore.In other words, when UE 101 is provided with the relevant information about service request, selected SMF 105 can be according to clothes
The relevant information asked be engaged in carry out the related setting of package routed path, related setting is carried out with relevant UPF with to.
Then, in step S414, the transmission registrations of initial AMF 104 receive information to UE 101.In step S415, UE 101
Transmission registration completes information to initial AMF 104.In an embodiment of the present invention, when the registration of UE 101 is received, initial AMF
The registrations of 104 transmission receive information may include tentative user identification code, registration area, mobile limitation, PDU session status,
NSSAI, period register update timer etc..Information is received in response to receiving to register, UE 101 can return registration and complete information
To initial AMF 104 a tentative user identification code (such as 5G-GUTI) has been assigned to confirm.
Other embodiment will be enumerated below to illustrate to be related to the case where AMF is reconfigured.Fig. 5 is an embodiment according to the present invention
The depicted schematic diagram for being related to the user equipment registration method that AMF is reconfigured.It is to register for the first time in the implementation example of Fig. 5
Program illustrates, but the present invention is not restricted to this.
Fig. 5 is please referred to, registration request and some accessed node parameters to (R) AN 102 are transmitted in step S501, UE 101,
This registration request includes network slice selection assistance information (NSSAI).In this, (R) AN 102 to receive registration request can
The access node being considered as in access network.In response to receiving the registration request of UE101 transmissions, in step S502, (R) AN
102 carry out the selection of AMF.Later, in step S503, (R) AN 102 transmits the registration request of UE 101 to initial AMF 104_
1.Registration request is received in response to initial AMF 104_1, judges whether have service UE in step S504, initial AMF 104_1
101 network capabilities.Also that is, initial AMF 104_1 can confirm whether oneself is suitable for service UE by inquiring UDM 111
101.The detailed operation of step S501~step S504 is similar to the detailed operation of step S401~step S404, no longer superfluous in this
It states.
In the flow example of Fig. 5, it is assumed that initial AMF 104_1 confirm that oneself does not have service in step S504
The ability of UE 101.Under the premise of herein, AMF reconfiguration procedures (AMF re-allocation procedure) are triggered to hold
Row.
If initial AMF 104_1 judge the ability for oneself not having service UE 101, in step S505, initial AMF 104_
1 transmission explores request to NRF 112 to find the network function of target AMF, and it includes to weight that this network function, which explores request,
Select the information of AMF.Then, the network function exploration that network function exploration request is transmitted in step S506, NRF 112 returns back to just
Beginning AMF 104_1, this network function explore the information that reply includes target AMF 104_2.In an embodiment of the present invention, network
Function explores the set that for example may include the NF types and candidate AMF that are set as AMF in request to the information of gravity treatment AMF.NRF
112, by the set of the candidate AMF explored according to network function in request, are explored using network function and are replied the phase of candidate AMF
It closes information and is supplied to initial AMF 104_1.
In the implementation example of Fig. 5, target AMF 104_2 are determined by (R) AN 102.Therefore, in step S507, initially
AMF 104_1 transmission N2 interfaces release information and information about target AMF 104_2 are to (R) AN 102.In other words, in
(R) after AN 102 receives the relevant information of candidate AMF, (R) AN 102 can determine target AMF 104_2 from candidate AMF.
Then, in step S508, the foundation of (R) AN 102 is connect with the N2 interfaces of target AMF 104_2, and the registration for transmitting UE 101 is asked
It asks to target AMF 104_2.Include namely exploring reply to the network function of the information of gravity treatment AMF in response to receiving, just
Beginning AMF 104_1 is by transmission interface Connection Release information and about the access in the information to (R) AN 102 of target AMF 104_2
Node, it includes that slice selects the registration request of information to target AMF 104_ to be sent with the access node in triggering (R) AN 102
2。
Then, include the registration request of NSSAI in response to reception, network work(is transmitted in step S509, target AMF 104_2
Request can be explored to NRF 112, it includes NSSAI and other registration relevant informations that this network function, which explores request,.In step S510,
NRF 112 will handle the parameter in registration request, and determine to close with other log-on messages according to the NSSAI in registration request
It is coupled to an at least candidate network function at least candidate network slice.It can be corresponded to by sending in step S511, NRF 112
The network function that network function explores request explores reply, and provides candidate network function and give target AMF 104_2.In step
S512, target AMF 104_2 are explored according to network function replys selection to service one or more network functions of UE 101.
In the exemplary embodiment of Fig. 5, the network function to service UE 101 that target AMF 104_2 are selected can wrap
Include AUSF 110, UDM 111, PCF 106 and SMF 105.Later, in step S513~S516, target AMF 104_2 with
Registration setting operation is executed by each network function that target AMF 104_2 are selected.In step S513, target AMF 104_2 can
Certification and security procedure are executed with selected AUSF 110.In step S514, target AMF 104_2 can be with selected UDM 111
Execution position more new procedures.Selected PCF 106 can be assisted to execute UE contexts in step S515, target AMF 104_2 to establish
(UE contest establishment).In step S516, target AMF 104_2 and selected SMF 105 it is executable about
The setting program of PDU states.
When UE 101 provides the service request information along with registration request, phase can be set in step S517, SMF105
The UPF of pass.Then, in step S518, target AMF 104_2 transmission registrations receive information to UE 101.In step S519, UE
101 transmission registrations complete information to target AMF 104_2.Step S509~S519's in Fig. 5 performed by target AMF 104_2
Operation is similar to the operation in detail of step S405~S415 performed by initial AMF 104 in Fig. 4 in detail, is repeated no more in this.
Other embodiment will be enumerated below to illustrate to be related to the case where AMF is reconfigured.Fig. 6 is an embodiment according to the present invention
The depicted schematic diagram for being related to the user equipment registration method that AMF is reconfigured.It is to register for the first time in the implementation example of Fig. 6
Program illustrates, but the present invention is not restricted to this.Embodiment shown in fig. 6 be by the initial AMF of reception registration request Lai
Determine target AMF.
Fig. 6 is please referred to, registration request and some accessed node parameters to (R) AN 102 are transmitted in step S601, UE 101,
This registration request includes network slice selection assistance information (NSSAI).In this, (R) AN 102 to receive registration request can
The access node being considered as in access network.In response to receiving the registration request of the transmissions of UE 101, in step S602, (R) AN
102 carry out the selection of AMF.Later, in step S603, (R) AN 102 transmits the registration request of UE 101 to initial AMF 104_
1.Registration request is received in response to initial AMF 104_1, judges whether have service UE in step S604, initial AMF 104_1
101 network capabilities.Also that is, initial AMF 104_1 can confirm whether oneself is suitable for service UE by inquiring UDM 111
101.The detailed operation of step S601~step S604 is similar to the detailed operation of step S401~step S404, no longer superfluous in this
It states.
Specifically, in the flow example of Fig. 6, it is assumed that initial AMF 104_1 confirm certainly in step S604
Oneself does not have the ability of service UE 101.Under the premise of herein, AMF reconfiguration procedures (AMF re-allocation
Procedure it) is triggered to execute.
If initial AMF 104_1 judge the ability for oneself not having service UE 101, in step S605, initial AMF 104_
1 transmission explores request to NRF 112 to find the network function of target AMF, and it includes to weight that this network function, which explores request,
Select the information of AMF.Then, the network function exploration that network function exploration request is transmitted in step S606, NRF 112 returns back to just
Beginning AMF 104_1, this network function explore the information that reply includes target AMF 104_2.In an embodiment of the present invention, network
Function explores the set that for example may include the NF types and candidate AMF that are set as AMF in request to the information of gravity treatment AMF.NRF
112 by the set of the candidate AMF explored according to network function in request, and utilizes network function to explore and reply candidate AMF's
Relevant information is supplied to initial AMF 104_1.
In the implementation example of Fig. 6, target AMF 104_2 are determined by initial AMF 104_1, and by the registration of UE 101
Request is directly re-routed to target AMF 104_2.Specifically, exploring the correlation for replying interior candidate AMF according to network function
Information, initial AMF 104_1 can determine target AMF 104_2 from candidate AMF.Therefore, include in initial AMF 104_1 receptions
The network function of the relevant information of candidate AMF explore reply and after determining target AMF 104_2, in step S607, initial AMF
It includes that slice selects the registration request of information (NSSAI) to target AMF 104_2 that 104_1, which turns to pass,.When target AMF 104_2 are completed
The reception of registration request, in step S608, target AMF 104_2 transmission, which confirms, returns back to initial AMF 104_1.Then, Yu Bu
Rapid S609, initial AMF 104_1 transmission N2 interfaces discharge information to (R) AN 102, with release (R) AN 102 and initial AMF
Resource between 104_1.It sends N2 interfaces in step S610, (R) AN 102 and establishes information, to establish and target AMF 104_2
N2 interfaces between (R) AN 102 are connect.
After target AMF 104_2 confirm that oneself has the ability of service UE 101, in step S611, target AMF
104_2 transmits network function and explores request to NRF 112, and it includes NSSAI related to other registrations that this network function, which explores request,
Information.The parameter in registration request will be handled in step S612, NRF 112, and according to the NSSAI and other notes in registration request
Volume information come determine to be associated with an at least candidate network slice an at least candidate network function.In step S613, NRF 112
The network function exploration that network function exploration request can be corresponded to by transmission is replied, and provides candidate network function to target
AMF 104_2.It is explored according to network function in step S614, target AMF 104_2 and replys selection to service the one of UE 101
A or multiple network functions.
In the exemplary embodiment of Fig. 6, the network function to service UE 101 that target AMF 104_2 are selected can wrap
Include AUSF 110, UDM 111, PCF 106 and SMF 105.Later, in step S615~S618, target AMF 104_2 with
Registration setting operation is executed by each network function that target AMF 104_2 are selected.When UE 101 is provided along with registration request
Service request information when, in step S619, SMF 105, relevant UPF can be set.Finally, in step S620, target AMF
104_2 transmission registrations receive information to UE 101.In step S621, the transmission registrations of UE 101 complete information to target AMF 104_
2.The detailed operation of step S611~S621 in Fig. 6 performed by target AMF 104_2 with performed by initial AMF 104 in Fig. 4
Step S405~S415 operation in detail it is similar, repeated no more in this.
Fig. 4 to fig. 6 is to execute to illustrate for accreditation process for the first time by UE 101, will enumerate below other embodiment with
Illustrate the case where UE 101 executes mobile accreditation process.Fig. 7 is being registered about mobile depicted in an embodiment according to the present invention
User equipment registration method schematic diagram.It is to be illustrated with moving accreditation process in the implementation example of Fig. 7, but the present invention
It is not restricted to this.
Position near the UE that trace regions (TA) are serviced for tracking network.Each trace regions will have unique
Global recognition (global identity), the unique global recognition are that trace regions identify (Tracking Area
Identity, TAI).TAI lists would generally be distributed to UE by network-side, and the TAI lists have one or more tracing Areas
Domain.When network-side must get in touch with UE, network-side will attempt to call the trace regions in TAI lists so that UE is positioned
Without calling each of existing possible cell.
Please refer to Fig. 7, in step S701, UE 101 because it is mobile and with initial (R) AN 102_1 and target (R) AN
102_2 executes changeover program.In this, initial (R) AN 102_1 and target (R) AN 102_2 can be considered in access network not
Same access node.In general, initial (R) AN 102_1 can decide whether to start switching journey according to the measurement report of reference signal
Sequence.If selection starts changeover program, via initial negotiation between (R) AN 102_1 and target (R) AN 102_2, UE 101 can
Target (R) AN 102_2 are switched to from initial (R) AN 102_1.In this, in an embodiment of the present invention, due to changeover program
It executes, UE 101 may be moved to another trace regions from a trace regions, and find the tracking of target (R) AN 102_2
Region does not come across the TAI lists of UE storages.Accordingly, in response to judging that the trace regions of target (R) AN 102_2 do not go out
Now in the TAI lists of UE storages, mobile accreditation process (the Mobility Registration that UE 101 will further perform
procedure)。
Later, after triggering executes mobile accreditation process, registration request and some visits are transmitted in step S702, UE 101
Node parameter is asked to target (R) AN 102_1, this registration request includes network slice selection assistance information (NSSAI).In step
S703, target (R) AN 102_2 carry out the selection of AMF.The registration request of UE 101 is transmitted in step S704, (R) AN 102 extremely
Initial AMF 104.In the ability that step S705, initial AMF 104 judge whether to have service UE 101.
In the flow example of Fig. 7, it is assumed that initial AMF 104 confirms that oneself has service UE in step S705
101 ability.Under the premise of herein, transmits network function in step S706, initial AMF 104 and explore request to NRF 112, this net
Network function explores request and may include NSSAI and other registration relevant informations.Registration request will be handled in step S707, NRF 112
In parameter, and cut with other log-on messages to determine to be associated with an at least candidate network according to the NSSAI in registration request
An at least candidate network function for piece.Correspond to the network that network function explores request by transmission in step S708, NRF 112
Function, which is explored, replys, and provides candidate network function to initial AMF 104.In step S709, initial AMF 104 is according to network work(
It can explore and reply selection to service one or more network functions of UE 101.However, in Fig. 7 performed by initial AMF 104
Step S702~S716 detailed operation and step S401~S415 performed by initial AMF 104 in Fig. 4 detailed operation
It is similar, it is repeated no more in this.The NSSAI in mobile registration request is sent to NRF 112 to cut by initial AMF 104
Piece selects, and the selection/reselection that UE 101 can complete network slice by mobile accreditation process is selected.
Other embodiment will be enumerated below to illustrate to be related to the case where AMF is reconfigured.Fig. 8 is an embodiment according to the present invention
The schematic diagram of the depicted user equipment registration method about mobile registration.In the implementation example of Fig. 8 registered with mobile
Program illustrates, but the present invention is not restricted to this.
Step S801~step S805 is similar to step S701~step S705 shown in Fig. 7, can refer to Fig. 4 to Fig. 7's
Illustrate and understands.In contrast to the embodiment of FIG. 7 in the flow example of Fig. 8, it is assumed that initial AMF 104_1 are in step
The ability for oneself not having service UE 101 is judged in S805.Under the premise of herein, in step S806, target (R) AN 102_
2, initial AMF 104_1, target AMF 104_2 and NRF 112 can perform AMF and reconfigure, and cause the mobile registration of UE 101
Request can be re-routed to target AMF 104_2.In this, step S505~S508 that step S806 for example can be as shown in Figure 5 comes
Implement, or step S605~S610 as shown in Figure 6 is implemented.It is asked in the registration that target AMF 104_2 acquisitions include NSSAI
After asking, the detailed operation phase of step S807~step S817 and step S706~S716 performed by initial AMF 104 in Fig. 7
Seemingly, it is repeated no more in this
Fig. 9 is the flow chart of the user equipment registration method depicted in an embodiment according to the present invention.Each step example of Fig. 9
It is executed in this way by the network controller with AMF.In step S901, the registration request of user equipment is received, wherein registration is asked
It asks and selects information including slice.In step S902, in response to receiving registration request, judge whether have according to slice selection information
The ability of served user equipment, and it includes that slice selects the first network function of information to explore request or to find target to transmit
It accesses to explore with the second network function of mobile management function and ask.In step S903, correspond to first network function receiving
After the network function exploration reply for exploring request, the network replied and selected to served user equipment is explored according to network function
Function and execute a registration setting operation with the selected network function, or correspond to the second network function receiving and explore request
Another network function explore reply after, transmission interface Connection Release information to access node.
Figure 10 is the flow chart of the user equipment registration method depicted in an embodiment according to the present invention.Each step of Figure 10
E.g. executed by the network controller with NRF.Include slice choosing from the reception of first network controller in step S1001
The first network function of selecting information explores request, and determines the candidate net for being associated with candidate network slice according to slice selection information
Network function.In step S1002, the network function exploration that the exploration request of first network function is corresponded to by transmission is replied, and
Candidate network function is provided and gives first network controller.In this, first network controller described in Figure 10 is, for example, to have AMF
Network controller.
Figure 11 is the block diagram of the network controller depicted in an embodiment according to the present invention.Network controller 1100 can wrap
Include but be not limited to processor 1102 and transceiver 1101.Transceiver 1101 may include meeting the receiver and hair that N2 interfaces define
Device is sent, to carry out signal and data transmission with the accessing points 1200 of (R) AN.Seem that network controller 1100 can pass through transceiver
1101 receive the registration request R1 of UE from accessing points 1200.Processor 1101 is configured to execute revealed with Fig. 9 or Figure 10
User equipment registration method and/or the aforementioned relevant function of all or part of embodiments.The function of processor 1101 can be by
One or more programmable units are realized with the circuit that has storage function, for example, microprocessor, microcontroller, DSP cores
Piece, FPGA etc..The function of processor 1101 can also realize by different electronic equipment or IC, and real by processor 1101
The function of applying can be realized by hardware and software.
In conclusion according to an embodiment of the invention, in accreditation process for the first time or mobile accreditation process, being suitable for service UE
AMF can by UE send registration request in NSSAI be transferred to NRF.Corresponding, NRF can be explored by network function and be asked
With reply with AMF interactions, and according to the NSSAI in registration request come determine the network slice for being suitble to UE and by some candidate nets
Network function is supplied to AMF.Thereby, the network function that AMF can be provided according to NRF, which is explored, replys to select to service the network of UE
Function, and cause UE that can smoothly access to suitable network slice by accreditation process.
Although the present invention is disclosed as above with embodiment, however, it is not to limit the invention, any technical field
Technical staff, without departing from the spirit and scope of the present invention, when can make some changes and embellishment, therefore the protection of the present invention
Range is when subject to the attached claims institute defender.
Claims (27)
1. a kind of user equipment registration method to select network to be sliced is suitable for the net accessed with mobile management function
Network controller, including：
The registration request of user equipment is received, wherein the registration request includes slice selection information；
In response to receiving the registration request, judge whether with the service user equipment according to the slice selection information
Ability, and it includes that the slice selects the first network function of information to explore request or to find target access and movement to transmit
Second network function of management function explores request；And
After receiving the network function exploration for corresponding to first network function exploration request and replying, according to the network work(
It can explore to reply and select to execute registration setting behaviour with selected network function to service the network function of the user equipment
Make, or after reception explores reply corresponding to another network function of second network function exploration request, transmission interface
Connection Release information is to access node.
2. the user equipment registration method according to claim 1 to select network to be sliced, wherein the slice selects
Information includes network slice selection auxiliary information.
3. the user equipment registration method according to claim 1 to select network to be sliced, wherein according to the slice
Selection information judges whether with the ability for servicing the user equipment, and transmit include the slice select information described the
One network function is explored request or is explored to second network function for finding the target access and mobile management function
The step of request includes：
If it is determined that with the ability for servicing the user equipment, transmission includes that the network function of the slice selection information is visited
Rope is asked to network function storage function.
4. the user equipment registration method according to claim 3 to select network to be sliced, wherein described to service
The network function of user equipment includes authentication server functions, and executes the registration with the selected network function and set
Surely operate the step of include：The certification for being associated with the user equipment and safe journey are executed with selected authentication server functions
Sequence.
5. the user equipment registration method according to claim 3 to select network to be sliced, wherein described to service
The network function of user equipment includes uniform data management, and executes the registration with the selected network function and set
The step of operation includes：The update location procedure for being associated with the user equipment is executed with selected uniform data management.
6. the user equipment registration method according to claim 3 to select network to be sliced, wherein described to service
The network function of user equipment includes policy management function, and executes the registration with the selected network function and set
The step of operation includes：It executes with selected policy management function and is established above under user equipment.
7. the user equipment registration method according to claim 3 to select network to be sliced, wherein described to service
The network function of user equipment includes conversation management functional, and executes the registration with the selected network function and set
The step of operation includes：The interaction for being associated with packet data unit session is executed with selected conversation management functional.
8. the user equipment registration method according to claim 1 to select network to be sliced, wherein being selected with described
Network function execute the registration setting operation the step of after, further include：
Transmission receives information corresponding to the registration of the registration request；And
Information is received in response to sending the registration, the registration transmitted by the user equipment is received and completes information.
9. the user equipment registration method according to claim 1 to select network to be sliced, wherein according to the slice
Selection information judges whether with the ability for servicing the user equipment, and transmit include the slice select information described the
One network function is explored request or is explored to second network function for finding the target access and mobile management function
The step of request includes：
If judging not having the ability for servicing the user equipment, transmit to find the target access and mobile management function
Second network function explore request to network function storage function.
10. the user equipment registration method according to claim 9 to select network to be sliced, wherein corresponding in reception
After second network function explores another network function exploration reply of request, the interface Connection Release letter is sent
It ceases to the step of access node and includes：
Another network function that request is explored in response to receiving second network function explores reply, sends the interface
Connection Release information and the information about the target access and mobile management function to the access node accessed in network,
Sent with to trigger the access node includes that the slice selects the registration request of information to the target access and movement
Management function.
11. the user equipment registration method according to claim 9 to select network to be sliced, wherein corresponding in reception
After second network function explores another network function exploration reply of request, the interface Connection Release letter is sent
It ceases to the step of access node and includes：
Another network function that request is explored in response to receiving second network function explores reply, and it includes described to turn to pass
The registration request of slice selection information is to the target access and mobile management function；And
The access node in the interface Connection Release information to access network is sent, is sent with triggering the access node
Interface connection establishes information to the target access and mobile management function.
12. the user equipment registration method according to claim 1 to select network to be sliced, wherein the registration request
It is that accreditation process for the first time is executed based on the user equipment and is generated.
13. the user equipment registration method according to claim 1 to select network to be sliced, wherein the registration request
It is that mobile accreditation process is executed based on the user equipment and is generated.
14. a kind of network controller, including：
Transceiver；And
Processor is coupled to the transceiver, and is configured at least execute：
The registration request of user equipment is received by the transceiver, wherein the registration request includes slice selection information；
In response to receiving the registration request, judge whether with the service user equipment according to the slice selection information
Ability, and by transmission include it is described slice selection information first network function explore request or to find target access and
Second network function of mobile management function explores request；And
After receiving the network function exploration for corresponding to first network function exploration request and replying, according to the network work(
It can explore to reply and select to execute registration setting behaviour with selected network function to service the network function of the user equipment
Make, or after reception explores reply corresponding to another network function of second network function exploration request, transmission interface
Connection Release information is to access node.
15. network controller according to claim 14, wherein slice selection information includes that network slice selection is auxiliary
Supplementary information.
16. network controller according to claim 14, wherein the processor is also configured to execute：
If it is determined that with the ability for servicing the user equipment, transmission includes that the network function of the slice selection information is visited
Rope is asked to network function storage function.
17. network controller according to claim 16, wherein to service the network function of the user equipment
Including authentication server functions, and the processor is also configured to execute：It is associated with selected authentication server functions execution
Certification in the user equipment and security procedure.
18. network controller according to claim 16, wherein to service the network function of the user equipment
Including uniform data management, and the processor is also configured to execute：It is associated with institute with selected uniform data management execution
State the update location procedure of user equipment.
19. network controller according to claim 16, wherein to service the network function of the user equipment
Including policy management function, and the processor is also configured to execute：User equipment is executed with selected policy management function
It is lower to establish above.
20. network controller according to claim 16, wherein to service the network function of the user equipment
Including conversation management functional, and the processor is also configured to execute：It is associated with envelope with selected conversation management functional execution
The interaction of bag data unit session.
21. network controller according to claim 14, wherein executing the registration with the selected network function
After the step of setting operation, and the processor is also configured to execute：
Transmission receives information corresponding to the registration of the registration request；And
Information is received in response to sending the registration, the registration transmitted by the user equipment is received and completes information.
22. network controller according to claim 14, wherein the processor is also configured to execute：
If judging not having the ability for servicing the user equipment, transmit to find the target access and mobile management function
Second network function explore request to network function storage function.
23. network controller according to claim 22, wherein the processor is also configured to execute：
Another network function that request is explored in response to receiving second network function explores reply, sends the interface
Connection Release information and the information about the target access and mobile management function to the access node accessed in network,
Sent with to trigger the access node includes that the slice selects the registration request of information to the target access and movement
Management function.
24. network controller according to claim 22, wherein the processor is also configured to execute：
Another network function that request is explored in response to receiving second network function explores reply, and it includes described to turn to pass
The registration request of slice selection information is to the target access and mobile management function；And
The access node in the interface Connection Release information to access network is sent, is sent with triggering the access node
Interface connection establishes information to the target access and mobile management function.
25. network controller according to claim 14, wherein the registration request is executed based on the user equipment
For the first time accreditation process and generate.
26. network controller according to claim 14, wherein the registration request is executed based on the user equipment
It moves accreditation process and generates.
27. a kind of network communicating system, including：
First network controller；And
Second network controller is connected to the first network controller,
The wherein described first network controller receives the registration request of user equipment, is selected wherein the registration request includes slice
Information；
The first network controller judges whether have in response to receiving the registration request, according to slice selection information
The ability of the user equipment is serviced, and it includes that the slice selects the first network function of information to explore request to transmit；
It includes the first network function exploration request for being sliced selection information that second network controller, which receives, and according to institute
It states slice selection information and determines the candidate network function of being associated with candidate network slice；
The network function that second network controller corresponds to first network function exploration request by transmission is explored back
It is multiple, and the candidate network function is provided to the first network function；And
The network function exploration explored and asked corresponding to the first network function is received in the first network controller to reply
Later, the first network function is explored according to the network function replys selection to service the network work(of the user equipment
Can, to execute registration setting operation with selected network function.
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| US201762455561P | 2017-02-06 | 2017-02-06 | |
| US62/455,561 | 2017-02-06 | ||
| TW106144939A TWI655877B (en) | 2017-02-06 | 2017-12-21 | User equipment registration method for selecting network slicing, and network controller and network communication system using the method |
| TW106144939 | 2017-12-21 |
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