CN109302701A

CN109302701A - A kind of Acceditation Area list determines method and device

Info

Publication number: CN109302701A
Application number: CN201710612951.8A
Authority: CN
Inventors: 孙海洋; 朱强华; 熊春山
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-07-25
Filing date: 2017-07-25
Publication date: 2019-02-01
Anticipated expiration: 2037-07-25
Also published as: WO2019020037A1; CN109302701B

Abstract

This application discloses a kind of Acceditation Area lists to determine method and device, wherein method includes: that AMF network element receives N number of Service Area Identification, it is corresponding that each Service Area Identification with one for terminal provides the coverage of UPF network element of service, N number of Service Area Identification is sent by M SMF network element, and N, M are the positive integer greater than 0；The AMF network element determines Acceditation Area list according to the corresponding relationship of the Service Area Identification and the coverage of the UPF network element for providing service for terminal, and the AMF network element sends the Acceditation Area list to the terminal.

Description

A kind of Acceditation Area list determines method and device

Technical field

This application involves fields of communication technology more particularly to a kind of Acceditation Area list to determine method and device.

Background technique

In long term evolution (Long Term Evolution, LTE) system, mobility management entity (Mobile Managenment Entity, MME) be terminal distribution tracking area (Tracking Area, TA) list in tracking area identification (Tracking Area Identifier, TAI) belongs to the service area of the same gateway (Serving Gateway, SGW) Domain, i.e. region indicated by TA list are contained in or the coverage equal to the SGW.

In following 5G communication system, such as new wireless (New Radio, NR) system, use Acceditation Area (Registration Area, RA) replaces tracking area, and is by access and mobile management function to ps domain (Access and Mobility Management Function, AMF) network element be the list of terminal distribution Acceditation Area.Multiple meetings are managed under AMF network element Talk about management function (Session Management Function, SMF) network element, while each SMF network element and multiple user faces function Energy (User Plane Function, UPF) network element docking, synchronization, there may be multiple UPF for belonging to different SMF network elements Network element is terminal service.

Since AMF network element does not manage UPF network element, and synchronization directly, belong to different SMF network elements there may be multiple UPF network element be terminal service, therefore AMF network element be terminal distribution Acceditation Area list indicated by Acceditation Area may not be Optimal region will lead to terminal when moving out Acceditation Area indicated by the Acceditation Area list in this way, some UPF network elements can Service can not be provided for the terminal.

Therefore, how AMF network element is the determining preferably Acceditation Area list of terminal, is a problem to be solved.

Summary of the invention

The application provides a kind of Acceditation Area list and determines method and device, to determine that preferably Acceditation Area arranges for terminal Table.

In a first aspect, the embodiment of the present application, which provides a kind of Acceditation Area list, determines method, this method comprises:

After AMF network element receives N number of Service Area Identification, the AMF network element according to the Service Area Identification with it is described The corresponding relationship that the coverage of the UPF network element of service is provided for terminal determines Acceditation Area list, and sends institute to the terminal State Acceditation Area list.Wherein, each Service Area Identification and one provide the coverage of the UPF network element of service for terminal Corresponding, N number of Service Area Identification is sent by M SMF network element, and N, M are the positive integer greater than 0.

It, can be according to N after AMF network element receives N number of Service Area Identification according to method provided by the embodiments of the present application The corresponding relationship of the coverage of a Service Area Identification and Service Area Identification and UPF network element is determined as terminal and provides service N number of UPF network element coverage, so as to determine Acceditation Area list according to the coverage of N number of UPF network element.By It is determined in the Acceditation Area list by the coverage of N number of UPF network element, therefore AMF network element is the registration that terminal is determined Area's list, with for the coverage of N number of UPF network element of the terminal service it is associated, so as to for terminal determine preferably Acceditation Area list.

Optionally in embodiment, the AMF network element is provided according to the Service Area Identification with described for terminal one kind The corresponding relationship of the coverage of the UPF network element of service determines Acceditation Area list, comprising:

The AMF network element according to the corresponding relationship of the Service Area Identification and the coverage of UPF network element, determine described in The corresponding N number of region of N number of Service Area Identification；For any region in N number of region, which includes that at least one is Terminal provides the coverage of the UPF network element of service；

The AMF network element determines the intersection area in N number of region, determines that the Acceditation Area arranges according to the intersection area Table.

By the way that the intersection area in the corresponding N number of region of N number of Service Area Identification to be determined as to the Acceditation Area of the terminal, eventually End when moving out Acceditation Area, the UPF network element of promising terminal service can not page the terminal, AMF network element so as to To determine the state of terminal, avoids and do not change in AMF network element, the case where terminal but has left the service range of SMF network element Under, in order to keep the continuity for the session having built up between terminal and AMF network element, network side needs additional process to do The reorientation of SMF network element improves system effectiveness to reduce the update signaling of system.

In a kind of optionally embodiment, the Service Area Identification for the transmission Service Area Identification SMF network element institute In the UPF network element of management, the partition identification of the UPF network element of service, the region of each partition identification instruction are provided for the terminal Coverage including at least one UPF network element, and at least one described UPF network element belongs to same SMF NE management and described The classification of at least one UPF network element is identical.

Optionally in embodiment, AMF network element receives before N number of Service Area Identification one kind, further includes:

The AMF network element obtain the partition identification for the UPF network element that each SMF network element is managed in the M SMF network element with And region indicated by the partition identification of UPF network element that is managed of each SMF network element.

It include the coverage of multiple UPF network elements in the region of partition identification instruction, therefore can be same by partition identification When indicate the coverage of multiple UPF network elements, to improve the efficiency that AMF network element determines Acceditation Area list.

In a kind of optionally embodiment, the Service Area Identification for the transmission Service Area Identification SMF network element institute In the UPF network element of management, the UPF mark of the UPF network element of service is provided for the terminal.

UPF identifies the coverage that can uniquely indicate UPF network element, and therefore, AMF network element can be fast by UPF mark Speed, the accurate coverage for determining the UPF network element for terminal service, so that improving AMF network element determines Acceditation Area list Efficiency.

The AMF network element obtain the UPF network element that each SMF network element is managed in the M SMF network element UPF mark with And each UPF identifies the coverage of corresponding UPF network element.

Second aspect, the embodiment of the present application provide a kind of Acceditation Area list and determine method, which comprises

SMF network element is determined as the corresponding Service Area Identification in coverage that terminal provides the UPF network element of service；Service area The corresponding relationship of the coverage of domain identifier and UPF network element is to be pre-configured to be in the SMF network element；

The SMF network element sends the Service Area Identification to access and AMF network element.

According to method provided by the embodiments of the present application, SMF network element will provide the coverage of the UPF network element of service for terminal Corresponding Service Area Identification is sent to AMF network element, so that after AMF network element receives the Service Area Identification, it can To be determined as the coverage that terminal provides the UPF network element of service according to the Service Area Identification, and according to the clothes of UPF network element Business region is the Acceditation Area list that terminal is determined, so as to determine preferably Acceditation Area list for terminal.

In a kind of optionally embodiment, in the UPF network element that the Service Area Identification is managed by the SMF network element, The partition identification of the UPF network element of service is provided for the terminal, the region of each partition identification instruction includes at least one UPF net The coverage of member, and at least one described UPF network element belongs to same SMF NE management and at least one UPF network element Classification is identical.

Optionally in embodiment, SMF network element determines before Service Area Identification one kind, further includes:

The SMF network element to the AMF network element send the UPF network element that the SMF network element is managed partition identification and Region indicated by the partition identification for the UPF network element that the SMF network element is managed.

In a kind of optionally embodiment, in the UPF network element that the Service Area Identification is managed by the SMF network element, The UPF mark of the UPF network element of service is provided for the terminal.

The SMF network element sends UPF mark and the institute for the UPF network element that the SMF network element is managed to the AMF network element State the coverage for the UPF network element that SMF network element is managed.

The SMF network element obtains the coverage of each UPF network element in the UPF network element that the SMF network element is managed.

The third aspect, the embodiment of the present application provide a kind of Acceditation Area list and determine method, which comprises

AMF network element receives N number of serving area list, and each serving area list includes providing service for terminal The coverage of UPF network element, N number of serving area list are sent by M SMF network element, and N, M are the positive integer greater than 0；

The AMF network element determines Acceditation Area list according to N number of serving area list；

The AMF network element sends the Acceditation Area list to the terminal.

It, can be according to the N after AMF network element receives N number of coverage according to method provided by the embodiments of the present application The coverage of a UPF network element determines Acceditation Area list.Since the Acceditation Area list is by the service area of N number of UPF network element Domain determines, therefore AMF network element is the Acceditation Area list that terminal is determined, the service with N number of UPF network element for the terminal service Region is associated, so as to determine preferably Acceditation Area list for terminal.

For one kind optionally in embodiment, the AMF network element determines that Acceditation Area arranges according to N number of serving area list Table, comprising:

The AMF network element determines the intersection area in the region of N number of serving area list instruction, and according to the intersection Region determines the Acceditation Area list.

Fourth aspect, the embodiment of the present application provide a kind of Acceditation Area list determining device, and described device includes:

Transmit-Receive Unit, for receiving N number of Service Area Identification, each Service Area Identification is provided with one for terminal The coverage of the user plane functions UPF network element of service is corresponding, and N number of Service Area Identification is by M conversation management functional SMF Network element is sent, and N, M are the positive integer greater than 0；

Processing unit, for the service according to the Service Area Identification and the UPF network element for providing service for terminal The corresponding relationship in region determines Acceditation Area list；

The Transmit-Receive Unit, for sending the Acceditation Area list to the terminal.

The Acceditation Area list determining device can be also used for realizing, any one in above-mentioned first aspect or first aspect Step in method.

5th aspect, the embodiment of the present application provide a kind of Acceditation Area list determining device, and described device includes:

Processing unit, the corresponding clothes in coverage for providing the user plane functions UPF network element of service for being determined as terminal Business area identification；The corresponding relationship of the coverage of Service Area Identification and UPF network element is to be pre-configured to be in the SMF network element 's；

Transmit-Receive Unit, for sending the Service Area Identification to access and mobile management function to ps domain AMF network element.

The Acceditation Area list determining device can be also used for realizing, any one in above-mentioned second aspect or second aspect Step in method.

6th aspect, the embodiment of the present application provide a kind of Acceditation Area list determining device, and described device includes:

Transmit-Receive Unit, for receiving N number of serving area list, each serving area list includes providing clothes for terminal The coverage of the user plane functions UPF network element of business, N number of serving area list are sent out by M conversation management functional SMF network element It send, N, M are the positive integer greater than 0；

Processing unit, for determining Acceditation Area list according to N number of serving area list；

The Acceditation Area list determining device can be also used for realizing, any one in the above-mentioned third aspect or the third aspect Step in method.

7th aspect, the embodiment of the present application provide a kind of Acceditation Area list determining device, and described device includes:

Transceiver, for receiving N number of Service Area Identification, each Service Area Identification and one provide clothes for terminal The coverage of the user plane functions UPF network element of business is corresponding, and N number of Service Area Identification is by M conversation management functional SMF net Member is sent, and N, M are the positive integer greater than 0；

Processor, for the service area according to the Service Area Identification and the UPF network element for providing service for terminal The corresponding relationship in domain determines Acceditation Area list；

The transceiver, for sending the Acceditation Area list to the terminal.

Eighth aspect, the embodiment of the present application provide a kind of Acceditation Area list determining device, and described device includes:

Processor, the corresponding service in coverage for providing the user plane functions UPF network element of service for being determined as terminal Area identification；The corresponding relationship of the coverage of Service Area Identification and UPF network element is to be pre-configured to be in the SMF network element；

Transceiver, for sending the Service Area Identification to access and mobile management function to ps domain AMF network element.

9th aspect, the embodiment of the present application provide a kind of Acceditation Area list determining device, and described device includes:

Transceiver, for receiving N number of serving area list, each serving area list includes providing service for terminal User plane functions UPF network element coverage, N number of serving area list sent out by M conversation management functional SMF network element It send, N, M are the positive integer greater than 0；

Processor, for determining Acceditation Area list according to N number of serving area list；

The transceiver, for sending the Acceditation Area list to the terminal.

Tenth aspect, the embodiment of the present application provide a kind of computer readable storage medium, including computer-readable instruction, When computer is read and executes the computer-readable instruction, so that computer executes method described in above-mentioned any one.

Tenth on the one hand, and the embodiment of the present application provides a kind of computer program product, including computer-readable instruction, when Computer reads and executes the computer-readable instruction, so that computer executes the method as described in above-mentioned any one.

12nd aspect, the embodiment of the present application provide a kind of chip, and the chip is connected with memory, for reading and holding The software program stored in the row memory, to realize in any of the above-described aspect and either side in various possible designs Method.

Detailed description of the invention

Fig. 1 is the first possible 5G network architecture schematic diagram；

Fig. 2 is second of possible 5G network architecture schematic diagram；

Fig. 3 is the third possible 5G network architecture schematic diagram；

Fig. 4 is that a kind of Acceditation Area list provided by the embodiments of the present application determines method flow schematic diagram；

Fig. 5 is a kind of coverage schematic diagram of UPF network element provided by the embodiments of the present application；

Fig. 6 is that a kind of Acceditation Area list provided by the embodiments of the present application determines method flow schematic diagram；

Fig. 7 is that a kind of Acceditation Area list provided by the embodiments of the present application determines method flow schematic diagram；

Fig. 8 is that a kind of Acceditation Area list provided by the embodiments of the present application determines method flow schematic diagram；

Fig. 9 is that a kind of Acceditation Area list provided by the embodiments of the present application determines method flow schematic diagram；

Figure 10 is a kind of Acceditation Area list determining device structural schematic diagram provided by the embodiments of the present application；

Figure 11 is a kind of Acceditation Area list determining device structural schematic diagram provided by the embodiments of the present application；

Figure 12 is a kind of Acceditation Area list determining device structural schematic diagram provided by the embodiments of the present application；

Figure 13 is a kind of Acceditation Area list determining device structural schematic diagram provided by the embodiments of the present application；

Figure 14 is a kind of Acceditation Area list determining device structural schematic diagram provided by the embodiments of the present application；

Figure 15 is a kind of Acceditation Area list determining device structural schematic diagram provided by the embodiments of the present application.

Specific embodiment

The application is described in further detail below in conjunction with attached drawing.

The embodiment of the present application can be applied to various mobile communication system, such as: global system for mobile telecommunications (Global System of Mobile communication, GSM) system, CDMA (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system System, General Packet Radio Service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) it is system, advanced long term evolution (Advanced long term evolution, LTE-A) system, logical With mobile communication system (Universal Mobile Telecommunication System, UMTS), the long term evolution of evolution Other mobile communication system such as (evolved Long Term Evolution, eLTE) system, 5G (such as NR system).

In the 5G network architecture discussed, there are many possible frameworks.As shown in Figure 1 to Figure 3, respectively the first To the third possible 5G network architecture schematic diagram.It include 1 between RAN network element and DN network element in the network architecture shown in Fig. 1 A UPF network element；It include 2 UPF nets to connect together between RAN network element and DN network element in the network architecture shown in Fig. 2 Member；2 UPF network elements in the network architecture shown in Fig. 1, between RAN network element and DN network element comprising being serially connected.

Fig. 1 includes authentication server function (Authentication Server into system shown in Fig. 3 Function, AUSF) network element, unified database management function (Unified Data Management, UDM), access and movement Property management function (Access and Mobility Management Function, AMF) network element, conversation management functional (Session Management Function, SMF) network element, policy control functions (Policy Control Function, PCF) network element, AF network element, wireless access network (Radio Access Network, RAN) network element (alternatively referred to as access net (Access Network, AN) network element), UPF network element, the network elements such as DN network element.Wherein, SMF network element is responsible for session management, terminal The distribution of the Internet protocol address (Internet Protocol, IP) and management, the distribution of UP anchor point function and selection and bear Blame the (weight) selection etc. of UPF network element and user plane path.AMF network element is responsible for access and mobile management, is that (AMF is set N2 with RAN Interface between standby) interface destination node, the NAS message that terminated, complete registration management, connection management and accessibility management, TA list and mobile management etc. are distributed, and transparent route conversation management (Session Management, SM) message arrives SMF network element.UPF network element is user plane functions equipment, be responsible for terminal provide data packet routing and forwarding, Lawful Interception, with And downlink data packet caches and the service such as trigger downlink data packet notification message.

Fig. 1 also shows the possibility implementation of the interface in each entity, such as access network elements and AMF into Fig. 3 N2 interface between network element, N9 interface between access network elements and UPF network element etc., this is no longer going to repeat them.

Simultaneously, it should be noted that in the embodiment of the present application, terminal, also referred to as user equipment (User Equipment, terminal), it is a kind of equipment for providing a user voice and/or data connectivity, is wirelessly connected function for example, having Handheld device, the mobile unit etc. of energy.Common terminal for example, mobile phone, tablet computer, laptop, palm electricity Brain, mobile internet device (mobile internet device, MID), wearable device, such as smartwatch, intelligent hand Ring, pedometer etc..

It is that a kind of Acceditation Area list provided by the embodiments of the present application determines that method flow shows referring to fig. 4 in conjunction with foregoing description It is intended to.

Referring to fig. 4, this method comprises:

Step 401:SMF network element is determined as the corresponding coverage mark in coverage for the UPF network element that terminal provides service Know；The corresponding relationship of the coverage of Service Area Identification and UPF network element is to be pre-configured to be in the SMF network element.

Step 402: the SMF network element sends the Service Area Identification to AMF network element.

Step 403:AMF network element receives N number of Service Area Identification, and each Service Area Identification is mentioned with one for terminal Corresponding for the coverage of service, N number of Service Area Identification is sent by M SMF network element, and N, M are the positive integer greater than 0.

It should be noted that AMF network element receives N number of coverage mark that M SMF network element is sent altogether in step 403 Know；M can be equal to N, i.e., each SMF network element sends a Service Area Identification；M might be less that N, i.e., each SMF network element hair Give at least one Service Area Identification.

Step 404: the AMF network element provides the UPF network element of service with described according to the Service Area Identification for terminal The corresponding relationship of coverage determine Acceditation Area list, the AMF network element sends the Acceditation Area list to the terminal.

The corresponding relationship of the coverage of Service Area Identification and UPF network element is to be pre-configured to be in the AMF network element.

Correspondingly, SMF network element can first configure each in the UPF network element that the SMF network element is managed before step 401 The Service Area Identification of the coverage of UPF network element and the coverage of each UPF network element, SMF network element configuration above- mentioned information Specific method, the embodiment of the present application do not limit this, and details are not described herein.

In the embodiment of the present application, Service Area Identification can be by UPF network element that SMF network element manages, being the terminal The UPF mark of the UPF network element of service is provided；Or Service Area Identification can be by UPF network element that SMF network element manages The terminal provides the marks such as subregion (partition) mark of the UPF network element of service.

When Service Area Identification is that UPF is identified, the coverage of UPF network element can be identified unique by the UPF of the UPF network element It determines.

When Service Area Identification is partition identification, the region of each partition identification instruction includes at least one UPF network element Coverage.At least one described UPF network element be two UPF network elements or more than two UPF network elements when, it is described at least one UPF network element belongs to same SMF NE management and the classification of at least one UPF network element is identical.Under the scene, AMF network element It may will appreciate that the corresponding relationship of the coverage of partition identification and partition identification instruction, but AMF network element may be not aware that this The coverage of partition identification instruction is that the coverage of which UPF network element is formed.

It should be noted that the coverage of described two UPF network elements is identical when the classification of two UPF network elements is identical, or There is intersection in the coverage of the described two UPF network elements of person.When the classification of two UPF network elements is identical, described two UPF network elements may be used also To there is other same or similar feature, details are not described herein.

In the embodiment of the present application, the corresponding relationship of the coverage of Service Area Identification and UPF network element can be pre-configuration In AMF network element.Specifically, the coverage for the UPF network element that SMF network element can be managed and the clothes with UPF network element The corresponding Service Area Identification in business region, is sent to AMF network element.AMF network element receive UPF network element coverage and with After the corresponding Service Area Identification in the coverage of UPF network element, the coverage and coverage for saving each UPF network element are marked The corresponding relationship of knowledge, to realize the pre-configured service area identification pass corresponding with the coverage of UPF network element in AMF network element System.

For example, SMF network element can send the SMF network element to the AMF network element when Service Area Identification is partition identification Area indicated by the partition identification for the UPF network element that the partition identification of the UPF network element managed and each SMF network element are managed Domain.AMF network element receives and saves the corresponding relationship in region indicated by partition identification and partition identification, to realize in AMF net The corresponding relationship in region indicated by partition identification and partition identification is pre-configured in member.

It should be noted that AMF not can determine that the specific location of the coverage of UPF, but can determine under the scene It include the coverage of at least one UPF in region indicated by each partition identification, when AMF is received point in step 403 When area identifies, the coverage that can be determined as the UPF of terminal service is located in the region of partition identification instruction.

For another example the SMF network element can be to described in the AMF network element transmission when Service Area Identification is that UPF is identified The UPF mark for the UPF network element that SMF network element is managed and each UPF identify the coverage of corresponding UPF network element.AMF net Member receives and saves the corresponding relationship of UPF mark and the coverage of UPF network element, is pre-configured UPF in AMF network element to realize The corresponding relationship of mark and the coverage of UPF network element.

It should be noted that SMF network element can be by N11 request message by the coverage and coverage of UPF network element Mark is sent to AMF network element, can also be sent by other message.Correspondingly, after AMF network element receives N11 request message, N11 request response can be returned.

In step 401, before SMF network element determines Service Area Identification, between SMF network element and AMF network element there may be with Lower interaction message:

AMF network element receives the first request message；First request message can for terminal send login request message or (PDU session association request message includes PDU to Packet Data Unit (Packet Data Unit, PDU) session association request message Foundation, PDU session modification of session etc.) etc., alternatively, the switching request message that the first request message can also send for AN network element Equal request messages.

AMF network element is that terminal selects SMF network element, and sends out to the SMF network element of selection according to the first request message received The second request message including PDU session association request message is sent, second request message is believed for request PDU session management Breath provides information for PDU session management.It wherein, further include conversation strategy, the signing information meeting of terminal in the second request message The information such as words and business continuance (Session and Service Continuity, SSC) mode (Mode).

The RA list that AMF network element can service can be pre-configured in the embodiment of the present application, in AMF network element, AMF network element is logical Crossing RA list can determine the AMF network element can manage which SMF network element, and the model of the Acceditation Area for terminal distribution It encloses, the range, that is, RA list range.The concrete configuration method of RA list, the embodiment of the present application do not limit this, This is repeated no more.

It should be noted that AMF network element is that terminal selects to be contemplated that when SMF network element according to the first request message received Following factor:

Selected data network name (Data Network Name, DNN).

It is the local carrier policy of terminal service.

The loading condition of candidate's SMF network element.

Certainly, the specific method of AMF network element selection SMF network element, the embodiment of the present application are not limited, are specifically repeated no more.

After SMF network element receives the second request message, according to the conversation strategy for the terminal for including in the second request message, The information such as signing information, SSC mode are determined as the terminal and provide the UPF network element of service, so that it is determined that the clothes of UPF network element out The Service Area Identification in business region.Wherein, how SMF network element is specifically according to the conversation strategy of terminal, signing information, SSC mode Etc. information be determined as the UPF network element of the terminal service, the embodiment of the present application does not limit this, specifically can be according to practical feelings Condition determines that details are not described herein.

It should be noted that the type of the second request message can be N11 request message.

In step 402, Service Area Identification can be sent to AMF network element by N11 request response by SMF network element, It can also include the information such as PDU conversational response in N11 request response.

Optionally, SMF network element can also send multilayer Acceditation Area (Registration Area, RA) mark to AMF network element Know, multilayer RA mark, which indicates, can provide the division of multilayer RA for the selected UPF network element of terminal.SMF network element is to AMF network element Send multilayer RA mark, it is meant that SMF network element is that the topology of the selected UPF network element of terminal supports layering RA, that is, AMF net The RA that member can be layered to terminal distribution, terminal is so that it is determined that be oneself assigned RA list be layering.

In step 403, for any one Service Area Identification in N number of Service Area Identification, the service area In the UPF network element that domain identifier can be managed to send the SMF network element of the Service Area Identification, service is provided for the terminal The partition identification of UPF network element.

Alternatively, for any one Service Area Identification in N number of Service Area Identification, the Service Area Identification To send in the UPF network element that the SMF network element of the Service Area Identification is managed, the UPF network element of service is provided for the terminal UPF mark.

Before AMF network element receives N number of Service Area Identification, it is likely to be received the login request message or PDU of terminal initiation Session association request message, or the request messages such as the switching request message that AN network element is initiated are received, then it is selected as terminal clothes N number of SMF network element of business disappears to send the N11 request including PDU session association request message to N number of SMF network element respectively Breath.

In step 404, the AMF network element can be first corresponding with the coverage of UPF network element according to Service Area Identification Relationship determines the corresponding region of N number of Service Area Identification, then determines the intersection area in N number of region, and according to institute It states intersection area and determines the Acceditation Area list.Wherein, for any region in N number of region, which includes at least The coverage of one UPF network element that service is provided for terminal.

In the embodiment of the present application, the intersection area can be directly determined as the Acceditation Area of the terminal by AMF network element, from And determine the Acceditation Area list.

For example, Service Area Identification is partition identification.AMF network element can be according to the clothes of partition identification and UPF network element The corresponding relationship in business region determines the region of N number of partition identification instruction, wherein the region of each partition identification instruction includes this point Area identifies the coverage of corresponding UPF network element.AMF network element is true by the intersection area in the region of N number of partition identification instruction It is set to the Acceditation Area of the terminal.

For example, Service Area Identification is UPF mark.AMF network element can identify the service with UPF network element according to UPF The corresponding relationship in region determines the region of N number of UPF mark instruction, wherein the region of each UPF mark instruction is to mark with the UPF Know the coverage of corresponding UPF network element.The intersection area in the region of N number of UPF mark instruction is determined as institute by AMF network element State the Acceditation Area of terminal.

It should be noted that the corresponding relationship of the coverage of Service Area Identification and UPF network element can be pre-configuration, Specific pre-provisioning procedure can refer to the description of front, and details are not described herein.

By the way that the intersection area in the corresponding N number of region of N number of Service Area Identification to be determined as to the Acceditation Area of the terminal, eventually End when moving out Acceditation Area, the UPF network element of promising terminal service can not page the terminal, AMF network element so as to To determine the state of terminal, avoids and do not change in AMF network element, the case where terminal but has left the service range of SMF network element Under, in order to keep the continuity for the session having built up between terminal and AMF network element, network side needs additional process to do The reorientation (relocation) of SMF network element improves system effectiveness to reduce the update signaling of system.

For example, as shown in figure 5, being a kind of coverage schematic diagram of UPF network element provided by the embodiments of the present application.

In Fig. 5, the coverage of UPF1 includes the overlay area of base station 1 to base station 3；The coverage of UPF2 includes base station 2 to base station 4 overlay area；The coverage of UPF3 includes the overlay area of base station 3 to base station 4.When SMF network element selects After UPF1, UPF2 and UPF3 provide service for terminal, SMF network element sends the service of the coverage of UPF1 to AMF network element The Service Area Identification of the coverage of the Service Area Identification and UPF3 of the coverage of area identification, UPF2.AMF network element According to above-mentioned mark, the overlay area of the overlay area and base station 3 that can determine base station 2 is the corresponding region of above-mentioned mark Intersection area, so as to which intersection area to be determined as to the Acceditation Area of the terminal.It is the every of terminal service in the Acceditation Area A UPF network element all can be the terminal service is provided, if terminal moves out the Acceditation Area, it is meant that network need replacing for The UPF network element of terminal service.Certainly, when moving out Acceditation Area, terminal can still be paged by part UPF network element and be arrived terminal, institute It can not have to send immediately with terminal to update request.

Optionally, AMF network element can also receive the multilayer RA mark of SMF network element transmission, and multilayer RA is identified and is sent To the terminal.

The process of front is described below by specific embodiment.

As shown in fig. 6, being that a kind of Acceditation Area list provided by the embodiments of the present application determines method flow schematic diagram.

The coverage of each UPF network element in the UPF network element that SMF network element described in step 601:SMF network element configuration is managed, And the partition identification of the coverage of each UPF network element.

Step 602:SMF network element sends N11 request message to AMF network element, includes SMF network element in the N11 request message The coverage of the UPF network element of management and the corresponding relationship of partition identification.

Step 603:AMF network element saves coverage and the partition identification of the UPF network element of SMF NE management that receives Corresponding relationship.

Above-mentioned steps 601 to step 603 does not need to be carried out every time, need to only execute at least once.

It should be noted that AMF network element can also configure the service region information of UPF by other means, such as manually The mode of configuration, details are not described herein.

Step 604: terminal sends the first request message to AMF network element, and first request message can be registration request Message or PDU session association request message.

Certainly, to may be AN network element initiate the request messages such as switching request message, switching request to AMF network element to this step Message is used to initiate switching request for terminal.

Step 605:AMF network element is selected as the SMF network element of terminal service according to the first request message received.

Step 606:AMF network element sends the second request message to the SMF network element of selection, includes PDU in the second request message Session association requests.

Step 607:SMF network element is determined as the end according to information such as the conversation strategy of terminal, signing information, SSC modes Hold the UPF network element of service.

Step 608:SMF network element will be sent to AMF for the partition identification of the coverage of the UPF network element of the terminal service Network element.

Optionally, the information such as PDU conversational response can also be sent to AMF network element simultaneously by SMF network element.

Optionally, SMF network element can send multilayer RA mark simultaneously to SMF network element.

Partition identification and institute of the step 609:AMF network element according to the coverage of the UPF network element for the terminal service The corresponding relationship for stating the coverage of partition identification and partition identification and UPF network element determines Acceditation Area list.

Step 610:AMF network element sends the Acceditation Area list to the terminal.

AMF network element can send the Acceditation Area list by registration reply message or PDU session relevant response message.

Optionally, AMF network element can send multilayer RA mark simultaneously to terminal.

As shown in fig. 7, being that a kind of Acceditation Area list provided by the embodiments of the present application determines method flow schematic diagram.

The coverage of each UPF network element in the UPF network element that SMF network element described in step 701:SMF network element configuration is managed, And the UPF mark of the coverage of each UPF network element.

Step 702:SMF network element sends N11 request message to AMF network element, includes SMF network element in the N11 request message The corresponding relationship of the coverage of the UPF network element of management and UPF mark.

Step 703:AMF network element saves coverage and the UPF mark of the UPF network element of the SMF NE management received Corresponding relationship.

Above-mentioned steps 701 to step 703 does not need to be carried out every time, need to only execute at least once.

It should be noted that AMF network element can also configure the service region information of UPF network element by other means, such as The mode of human configuration, details are not described herein.

Step 704:AN network element sends the first request message to AMF network element, and first request message can ask for switching Message is sought, switching request message is used to initiate switching request for terminal.

Certainly, this step may be that login request message that terminal is sent to AMF network element or PDU session association requests disappear The request messages such as breath hair.

Step 705:AMF network element is selected as the SMF network element of terminal service according to the first request message received.

Step 706:AMF network element sends the second request message to the SMF network element of selection, includes PDU in the second request message Session association requests.

Step 707:SMF network element is determined as the end according to information such as the conversation strategy of terminal, signing information, SSC modes Hold the UPF network element of service.

Step 708:SMF network element will be sent to AMF for the UPF of the coverage of the UPF network element of terminal service mark Network element.

Step 709:AMF network element according to the UPF of the coverage of the UPF network element for the terminal service identify and it is described UPF mark and UPF mark and the corresponding relationship of the coverage of UPF network element determine Acceditation Area list.

Step 710:AMF network element sends the Acceditation Area list to the terminal.

As shown in figure 8, being that a kind of Acceditation Area list provided by the embodiments of the present application determines method flow schematic diagram.

Step 801:SMF network element determines serving area list；The serving area list includes that SMF network element is managed In UPF network element, the coverage of the UPF network element of service is provided for terminal.

It should be noted that serving area list includes the coverage of at least one UPF network element, each UPF network element Coverage can be indicated by the location information of the coverage of the UPF network element, can also be by the service area of the UPF network element The mark for n base station for including in domain indicates that n is the positive integer more than or equal to 1, can also be by the coverage of UPF network element In include m cell cell ID instruction, m is positive integer more than or equal to 1.Certainly the above only example, can be with It indicates coverage, no longer to illustrate one by one herein by other means.

Step 802: the SMF network element sends the serving area list to AMF network element.

Step 803:AMF network element receives N number of serving area list, and each serving area list includes providing service for terminal User plane functions UPF network element coverage, N number of serving area list sends by M SMF network element, and N, M are greater than 0 Positive integer.

It should be noted that AMF network element receives N number of coverage column that M SMF network element is sent altogether in step 803 Table；M can be equal to N, i.e., each SMF network element sends a serving area list；M might be less that N, i.e., each SMF network element hair Give at least one serving area list.

Step 804: the AMF network element determines Acceditation Area list, the AMF network element according to N number of serving area list The Acceditation Area list is sent to the terminal.

Before step 801, SMF network element can be pre-configured with the coverage of each UPF network element of its management, concrete configuration Method, the embodiment of the present application do not limit this.

In step 801, before SMF network element determines serving area list, AMF network element is likely to be received the first request message, First request message can be the login request message or Packet Data Unit (Packet Data Unit, PDU) of terminal transmission Session association request message (PDU session association request message includes the foundation of PDU session, PDU session modification etc.) etc., alternatively, The request messages such as the switching request message that the first request message can also send for AN network element.

AMF network element is that terminal selects SMF network element, SMF net of the AMF network element to selection according to the first request message received Member sends the second request message including PDU session association request message, and second request message is used for request PDU session pipe Reason information provides information for PDU session management.Further include in second request message conversation strategy of terminal, signing information, The information such as SSC mode.

It should be noted that can be pre-configured with the RA list that AMF network element can service in AMF network element, AMF network element passes through RA list can determine the AMF network element can manage which SMF network element, and the range of the Acceditation Area for terminal distribution, The range, that is, RA list range.The concrete configuration method of RA list, the embodiment of the present application do not limit this, herein not It repeats again.

After SMF network element receives the second request message, believed according to the conversation strategy of terminal, signing information, SSC mode etc. Breath is determined as the UPF network element of the terminal service, so that it is determined that the coverage of UPF network element out.

In step 802, serving area list can be sent to AMF network element by N11 request response by SMF network element, It can also include the information such as PDU conversational response in N11 request response.

It should be noted that SMF network element is that the coverage of UPF network element each in serving area list is sent to AMF Network element, specifically, the location information etc. for indicating the coverage of UPF network element may be sent to AMF network element by SMF network element, from And AMF network element is made to determine the coverage of UPF network element.

In step 803, after AMF network element receives N number of serving area list, it can determine and be wrapped in each serving area list The coverage of the UPF network element included.

In step 804, the AMF network element can first determine the intersection area in the region of N number of serving area list instruction Then domain determines the Acceditation Area list according to the intersection area.In a kind of possible implementation, AMF network element can be straight The Acceditation Area that the intersection area is determined as to the terminal is connect, so that it is determined that the Acceditation Area list out.

As shown in figure 9, being that a kind of Acceditation Area list provided by the embodiments of the present application determines method flow schematic diagram.

The coverage of each UPF network element in the UPF network element that SMF network element described in step 901:SMF network element configuration is managed.

The RA list that AMF network element can service is pre-configured in step 902:AMF network element.

Above-mentioned steps 901 to step 902 does not need to be carried out every time, need to only execute at least once.

Step 903:AN network element sends the first request message to AMF network element, and first request message can ask for switching Message is sought, switching request message is used to initiate switching request for terminal.

Step 904:AMF network element is selected as the SMF network element of terminal service according to the first request message received.

Step 905:AMF network element sends the second request message to the SMF network element of selection, includes PDU in the second request message Session association requests.

Step 906:SMF network element is determined as the end according to information such as the conversation strategy of terminal, signing information, SSC modes Hold the UPF network element of service.

Step 907:SMF network element by include UPF network element for the terminal service coverage serving area list It is sent to AMF network element.

Step 908:AMF network element determines Acceditation Area list according to the serving area list received.

Step 909:AMF network element sends the Acceditation Area list to the terminal.

Based on the same technical idea, the embodiment of the present application also provides a kind of Acceditation Area list determining device, which can Execute above method embodiment.

As shown in Figure 10, a kind of Acceditation Area list determining device structural schematic diagram is provided for the embodiment of the present application.Optionally, The device can be AMF network element.

Referring to Figure 10, which includes:

Transmit-Receive Unit 1001, for receiving N number of Service Area Identification, each Service Area Identification and one are terminal The coverage for providing the user plane functions UPF network element of service is corresponding, and N number of Service Area Identification is by M session management function Energy SMF network element is sent, and N, M are the positive integer greater than 0；

Processing unit 1002, for according to the Service Area Identification and the UPF network element for providing service for terminal The corresponding relationship of coverage determines Acceditation Area list；

The Transmit-Receive Unit 1001, for sending the Acceditation Area list to the terminal.

Optionally in embodiment, the processing unit 1002 is specifically used for one kind:

According to the corresponding relationship of the Service Area Identification and the coverage of UPF network element, N number of coverage is determined Identify corresponding N number of region；For any region in N number of region, which includes that at least one for terminal provides clothes The coverage of the UPF network element of business；

The intersection area for determining N number of region determines the Acceditation Area list according to the intersection area.

Optionally in embodiment, the Transmit-Receive Unit 1001 is also used to one kind:

Obtain the partition identification and each SMF net of the UPF network element that each SMF network element is managed in the M SMF network element Region indicated by the partition identification for the UPF network element that member is managed.

Obtain the UPF mark and each UPF mark of the UPF network element that each SMF network element is managed in the M SMF network element Know the coverage of corresponding UPF network element.

As shown in figure 11, a kind of Acceditation Area list determining device structural schematic diagram is provided for the embodiment of the present application.Optionally, The device can be SMF network element.

Referring to Figure 11, which includes:

Processing unit 1101, the coverage for being determined as the user plane functions UPF network element that terminal provides service are corresponding Service Area Identification；The corresponding relationship of the coverage of Service Area Identification and UPF network element is to be pre-configured to be in the SMF network element In；

Transmit-Receive Unit 1102, for sending the Service Area Identification to access and mobile management function to ps domain AMF network element.

Optionally in embodiment, the Transmit-Receive Unit 1102 is also used to one kind:

The partition identification and the SMF network element of the UPF network element that the SMF network element is managed are sent to the AMF network element Region indicated by the partition identification of the UPF network element managed.

The UPF for sending the UPF network element that the SMF network element is managed to the AMF network element is identified and the SMF network element institute The coverage of the UPF network element of management.

Obtain the coverage of each UPF network element in the UPF network element that the SMF network element is managed.

As shown in figure 12, a kind of Acceditation Area list determining device structural schematic diagram is provided for the embodiment of the present application.Optionally, The device can be AMF network element.

Referring to Figure 12, which includes:

Transmit-Receive Unit 1201, for receiving N number of serving area list, each serving area list includes mentioning for terminal For the coverage of the user plane functions UPF network element of service, N number of serving area list is by M conversation management functional SMF net Member is sent, and N, M are the positive integer greater than 0；

Processing unit 1202, for determining Acceditation Area list according to N number of serving area list；

The Transmit-Receive Unit 1201, for sending the Acceditation Area list to the terminal.

Optionally in embodiment, the processing unit 1202 is specifically used for one kind:

It determines the intersection area in the region of N number of serving area list instruction, and institute is determined according to the intersection area State Acceditation Area list.

As shown in figure 13, a kind of Acceditation Area list determining device structural schematic diagram is provided for the embodiment of the present application.Optionally, The device can be AMF network element.

Referring to Figure 13, which includes: processor 1301, transceiver 1302, memory 1303；Wherein, processor 1301, transceiver 1302, memory 1303 are connected with each other by bus 1304.

Bus 1304 can be Peripheral Component Interconnect standard (peripheral component interconnect, PCI) Bus or expanding the industrial standard structure (extended industry standard architecture, EISA) bus etc..Always Line can be divided into address bus, data/address bus, control bus etc..Only to be indicated with a thick line in Figure 13, but simultaneously convenient for indicating Only a bus or a type of bus are not indicated.

Memory 1303 may include volatile memory (volatile memory), such as random access memory (random-access memory, RAM)；Memory also may include nonvolatile memory (non-volatile ), such as flash memory (flash memory), hard disk (hard disk drive, HDD) or solid state hard disk memory (solid-state drive, SSD)；Memory 1303 can also include the combination of the memory of mentioned kind.

Processor 1301 can be central processing unit (central processing unit, CPU), network processing unit The combination of (network processor, NP) or CPU and NP.Processor 1301 can further include hardware chip.On Stating hardware chip can be specific integrated circuit (application-specific integrated circuit, ASIC), can Programmed logic device (programmable logic device, PLD) or combinations thereof.Above-mentioned PLD can be complex programmable and patrol It collects device (complex programmable logic device, CPLD), field programmable gate array (field- Programmable gate array, FPGA), Universal Array Logic (generic array logic, GAL) or its any group It closes.

Transceiver 1302, for receiving N number of Service Area Identification, each Service Area Identification is mentioned with one for terminal Corresponding for the coverage of the user plane functions UPF network element of service, N number of Service Area Identification is by M conversation management functional SMF network element is sent, and N, M are the positive integer greater than 0；

Memory 1303 can be also used for storage program instruction, and processor 1301 calls the journey stored in the memory 1303 Sequence instruction, can execute following steps: according to the clothes of the Service Area Identification and the UPF network element for providing service for terminal The corresponding relationship in business region determines Acceditation Area list；

The transceiver 1302, for sending the Acceditation Area list to the terminal.

Optionally in embodiment, the processor 1301 is specifically used for one kind:

Optionally in embodiment, the transceiver 1302 is also used to one kind:

As shown in figure 14, a kind of Acceditation Area list determining device structural schematic diagram is provided for the embodiment of the present application.Optionally, The device can be AMF network element.

Referring to Figure 14, which includes: processor 1401, transceiver 1402, memory 1403；Wherein, processor 1401, transceiver 1402, memory 1403 are connected with each other by bus 1404, and the particular content of above-mentioned module can refer to front Description, details are not described herein.

Memory 1403 can be also used for storage program instruction, and processor 1401 calls the journey stored in the memory 1403 Sequence instruction, can execute following steps: the coverage pair for providing the user plane functions UPF network element of service for being determined as terminal The Service Area Identification answered；The corresponding relationship of the coverage of Service Area Identification and UPF network element is to be pre-configured to be in the SMF net In member；

Transceiver 1402, for sending the Service Area Identification to access and mobile management function to ps domain AMF network element.

Optionally in embodiment, the transceiver 1402 is also used to one kind:

As shown in figure 15, a kind of Acceditation Area list determining device structural schematic diagram is provided for the embodiment of the present application.Optionally, The device can be AMF network element.

Referring to Figure 15, which includes: processor 1501, transceiver 1502, memory 1503；Wherein, processor 1501, transceiver 1502, memory 1503 are connected with each other by bus 1504, and the particular content of above-mentioned module can refer to front Description, details are not described herein.

Transceiver 1502, for receiving N number of serving area list, each serving area list includes providing for terminal The coverage of the user plane functions UPF network element of service, N number of serving area list is by M conversation management functional SMF network element It sends, N, M are the positive integer greater than 0；

Memory 1503 can be also used for storage program instruction, and processor 1501 calls the journey stored in the memory 1503 Sequence instruction, can execute following steps: determine Acceditation Area list according to N number of serving area list；

The transceiver 1502, for sending the Acceditation Area list to the terminal.

Optionally in embodiment, the processor 1501 is specifically used for one kind:

The embodiment of the present application also provides a kind of computer readable storage mediums, execute above-mentioned processor institute for being stored as The computer software instructions that need to be executed comprising the program for execution needed for executing above-mentioned processor.

It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application Apply the form of example.Moreover, the computer in one or more which includes computer usable program code can be used in the application The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage, optical memory etc.) Formula.

The application be referring to according to the present processes, equipment (system) and computer program product flow chart and/or Block diagram describes.It should be understood that each process that can be realized by computer program instructions in flowchart and/or the block diagram and/or The combination of process and/or box in box and flowchart and/or the block diagram.It can provide these computer program instructions to arrive General purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices processor to generate one Machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for realizing flowing The device for the function of being specified in journey figure one process or multiple processes and/or block diagrams one box or multiple boxes.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies Within, then the application is also intended to including these modification and variations.

Claims

1. a kind of Acceditation Area list determines method, which is characterized in that the described method includes:

Access and mobile management function to ps domain AMF network element receive N number of Service Area Identification, each Service Area Identification and one The coverage for providing the user plane functions UPF network element of service for terminal is corresponding, and N number of Service Area Identification is by M session Management function SMF network element is sent, and N, M are the positive integer greater than 0；

The AMF network element is according to the Service Area Identification and the coverage of the UPF network element for providing service for terminal Corresponding relationship determines Acceditation Area list, and the AMF network element sends the Acceditation Area list to the terminal.

2. the method according to claim 1, wherein the AMF network element is according to the Service Area Identification and institute It states and the corresponding relationship of the coverage of UPF network element of service is provided for terminal determines Acceditation Area list, comprising:

The AMF network element determines described N number of according to the corresponding relationship of the Service Area Identification and the coverage of UPF network element The corresponding N number of region of Service Area Identification；For any region in N number of region, which includes at least one for eventually End provides the coverage of the UPF network element of service；

The AMF network element determines the intersection area in N number of region, determines the Acceditation Area list according to the intersection area.

3. method according to claim 1 or 2, which is characterized in that the Service Area Identification is to send the coverage In the UPF network element that the SMF network element of mark is managed, the partition identification of the UPF network element of service, each subregion are provided for the terminal The region of mark instruction includes the coverage of at least one UPF network element, and at least one described UPF network element belongs to same SMF The classification of NE management and at least one UPF network element is identical.

4. according to the method described in claim 3, it is characterized in that, also being wrapped before the N number of Service Area Identification of AMF network element reception It includes:

The AMF network element obtains the partition identification of the UPF network element that each SMF network element is managed in the M SMF network element and every Region indicated by the partition identification for the UPF network element that a SMF network element is managed.

5. the method according to claim 1, wherein the Service Area Identification is to send the Service Area Identification The UPF network element that is managed of SMF network element in, provide the UPF mark of the UPF network element of service for the terminal.

6. according to the method described in claim 5, it is characterized in that, also being wrapped before the N number of Service Area Identification of AMF network element reception It includes:

The AMF network element obtains the UPF mark of the UPF network element that each SMF network element is managed in the M SMF network element and every A UPF identifies the coverage of corresponding UPF network element.

7. a kind of Acceditation Area list determines method, which is characterized in that the described method includes:

The coverage that conversation management functional SMF network element is determined as the user plane functions UPF network element that terminal provides service is corresponding Service Area Identification；The corresponding relationship of the coverage of Service Area Identification and UPF network element is to be pre-configured to be in the SMF network element 's；

The SMF network element sends the Service Area Identification to access and mobile management function to ps domain AMF network element.

8. the method according to the description of claim 7 is characterized in that the Service Area Identification is managed by the SMF network element UPF network element in, provide the partition identification of the UPF network element of service for the terminal, the region of each partition identification instruction includes The coverage of at least one UPF network element, and at least one described UPF network element belong to same SMF NE management and it is described at least The classification of one UPF network element is identical.

9. according to the method described in claim 8, it is characterized in that, before SMF network element determines Service Area Identification, further includes:

The SMF network element sends the partition identification of the UPF network element that the SMF network element is managed and described to the AMF network element Region indicated by the partition identification for the UPF network element that SMF network element is managed.

10. the method according to the description of claim 7 is characterized in that the Service Area Identification is managed by the SMF network element UPF network element in, for the terminal provide the UPF network element of service UPF mark.

11. according to the method described in claim 10, it is characterized in that, also being wrapped before SMF network element determines Service Area Identification It includes:

The SMF network element to the AMF network element send the UPF network element that the SMF network element is managed UPF mark and it is described The coverage for the UPF network element that SMF network element is managed.

12. according to any method of claim 7 to 11, which is characterized in that SMF network element determine Service Area Identification it Before, further includes:

13. a kind of Acceditation Area list determines method, which is characterized in that the described method includes:

Access receives N number of serving area list with mobile management function to ps domain AMF network element, and each serving area list includes being Terminal provides the coverage of the user plane functions UPF network element of service, and N number of serving area list is by M session management function Energy SMF network element is sent, and N, M are the positive integer greater than 0；

The AMF network element sends the Acceditation Area list to the terminal.

14. according to the method for claim 13, which is characterized in that the AMF network element is according to N number of serving area list Determine Acceditation Area list, comprising:

The AMF network element determines the intersection area in the region of N number of serving area list instruction, and according to the intersection area Determine the Acceditation Area list.

15. a kind of Acceditation Area list determining device, which is characterized in that described device includes:

Transmit-Receive Unit, for receiving N number of Service Area Identification, each Service Area Identification and one provide service for terminal User plane functions UPF network element coverage it is corresponding, N number of Service Area Identification is by M conversation management functional SMF network element It sends, N, M are the positive integer greater than 0；

Processing unit, for the coverage according to the Service Area Identification and the UPF network element for providing service for terminal Corresponding relationship determine Acceditation Area list；

16. device according to claim 15, which is characterized in that the processing unit is specifically used for:

According to the corresponding relationship of the Service Area Identification and the coverage of UPF network element, N number of Service Area Identification is determined Corresponding N number of region；For any region in N number of region, which includes that at least one for terminal provides service The coverage of UPF network element；

17. device according to claim 15 or 16, which is characterized in that the Service Area Identification is to send the service area In the UPF network element that the SMF network element of domain identifier is managed, the partition identification of the UPF network element of service, Mei Gefen are provided for the terminal Area mark instruction region include at least one UPF network element coverage, and at least one described UPF network element belong to it is same The classification of SMF NE management and at least one UPF network element is identical.

18. device according to claim 17, which is characterized in that the Transmit-Receive Unit is also used to:

Obtain the UPF network element that each SMF network element is managed in the M SMF network element partition identification and each SMF network element institute Region indicated by the partition identification of the UPF network element of management.

19. device according to claim 15, which is characterized in that the Service Area Identification is to send coverage mark In the UPF network element that the SMF network element of knowledge is managed, the UPF mark of the UPF network element of service is provided for the terminal.

20. device according to claim 19, which is characterized in that the Transmit-Receive Unit is also used to:

Obtain the UPF mark and each UPF mark pair of the UPF network element that each SMF network element is managed in the M SMF network element The coverage for the UPF network element answered.

21. a kind of Acceditation Area list determining device, which is characterized in that described device includes:

Processing unit, the corresponding service area in coverage for providing the user plane functions UPF network element of service for being determined as terminal Domain identifier；The corresponding relationship of the coverage of Service Area Identification and UPF network element is to be pre-configured to be in the SMF network element；

22. device according to claim 21, which is characterized in that the Service Area Identification is managed by the SMF network element In the UPF network element of reason, the partition identification of the UPF network element of service, the region packet of each partition identification instruction are provided for the terminal Include the coverage of at least one UPF network element, and at least one described UPF network element belong to same SMF NE management and it is described extremely The classification of a few UPF network element is identical.

23. device according to claim 22, which is characterized in that the Transmit-Receive Unit is also used to:

The partition identification for the UPF network element that the SMF network element is managed is sent to the AMF network element and the SMF network element is managed Region indicated by the partition identification of the UPF network element of reason.

24. device according to claim 21, which is characterized in that the Service Area Identification is managed by the SMF network element In the UPF network element of reason, the UPF mark of the UPF network element of service is provided for the terminal.

25. device according to claim 24, which is characterized in that the Transmit-Receive Unit is also used to:

The UPF mark for the UPF network element that the SMF network element is managed is sent to the AMF network element and the SMF network element is managed UPF network element coverage.

26. according to any device of claim 21 to 25, which is characterized in that the Transmit-Receive Unit is also used to:

27. a kind of Acceditation Area list determining device, which is characterized in that described device includes:

Transmit-Receive Unit, for receiving N number of serving area list, each serving area list includes providing service for terminal The coverage of user plane functions UPF network element, N number of serving area list are sent by M conversation management functional SMF network element, N, M is the positive integer greater than 0；

28. device according to claim 27, which is characterized in that the processing unit is specifically used for:

It determines the intersection area in the region of N number of serving area list instruction, and the note is determined according to the intersection area Volume area's list.

29. a kind of computer readable storage medium, including computer-readable instruction, when computer is read and executes the computer When readable instruction, so that computer executes the method as described in claim 1-14 any one.

30. a kind of computer program product, including computer-readable instruction, when computer is read and is executed described computer-readable Instruction, so that computer executes the method as described in claim 1-14 any one.