WO2024061075A1

WO2024061075A1 - Network registration method and apparatus

Info

Publication number: WO2024061075A1
Application number: PCT/CN2023/118523
Authority: WO
Inventors: 程志密; 宋雅琴; 刘强
Original assignee: 大唐移动通信设备有限公司
Priority date: 2022-09-19
Filing date: 2023-09-13
Publication date: 2024-03-28
Also published as: CN117768998A

Abstract

Provided in the embodiments of the present disclosure are a network registration method and apparatus. The method applied to a terminal comprises: sending to an access network entity a first registration request message, the first registration request message being used for determining a target network node as well as a target access and mobility management function entity corresponding to the target network node.

Description

Network registration method and device

Cross-references to related applications

This application claims priority to the Chinese patent application with application number 202211147961.6 and the invention title "Network Registration Method and Device" submitted on September 19, 2022, which is fully incorporated herein by reference.

Technical field

The present disclosure relates to the field of communication technology, and in particular, to a network registration method and device.

Background technique

The sixth generation mobile communication standards (6th generation mobile networks, 6G) will be oriented to diverse scenarios and network needs in the air, space, ground and sea. The centralized network architecture cannot uniformly meet all scenarios. To cope with this challenge, the 6G network architecture needs to go beyond centralized control and gradually evolve towards a distributed architecture, extending more network functions (such as authentication and authentication) to the edge of the network, and establishing distributed synchronization with different functional levels. Construct micro-cloud unit.

However, the current terminal network registration method can only realize network registration in the scenario of one network node. Therefore, network registration in the scenario of multiple network nodes has become an urgent problem that needs to be solved.

Contents of the invention

The embodiments of the present disclosure provide a network registration method and device to solve the defect in the related art that network registration can only be performed in a scenario where one network node is connected, and to realize network registration in a scenario where multiple network nodes are connected.

In a first aspect, embodiments of the present disclosure provide a network registration method, which is applied to a terminal and includes:

Send a first registration request message to the access network entity, where the first registration request message is used to determine the target network node and the target access and mobility management function implementation corresponding to the target network node. body.

In some embodiments, the first registration request message carries a target network node identifier and/or terminal information used to determine the target network node.

In some embodiments, the target network node identification is determined based on a preconfigured list of accessible network nodes.

In some embodiments, the method further includes:

Receive a current accessible network node list sent by the target access and mobility management function entity.

In a second aspect, embodiments of the present disclosure also provide a network registration method, applied to access network entities, including:

Receive the first registration request message sent by the terminal;

Based on the first registration request message, determine a target network node;

Based on the preconfigured access and mobility management function information, determine the target access and mobility management function entity corresponding to the target network node;

Send a second registration request message to the target access and mobility management function entity.

In some embodiments, in the case where the first registration request message does not carry a target network node identifier and/or terminal information used to determine the target network node, the determination based on the first registration request message is Target network nodes include:

Determine a first network node based on the first registration request message and the first local policy;

Send the first registration request message to the access and mobility management function entity corresponding to the first network node;

Receive a first response message sent by the access and mobility management function entity corresponding to the first network node;

The target network node is determined based on the first response message.

In some embodiments, when the first network node is a centralized node, the first response message includes a target network node identifier or a candidate network used to determine the target network node. Network node list.

In some embodiments, when the first network node is a distributed node, determining the target network node based on the first response message includes any of the following:

Determine that the distributed node is the target network node based on the first response message;

Determine the target network node based on the first response message carrying the target network node identifier;

Determine the target network node based on the first response message carrying a candidate network node list;

Wherein, the target network node identification and the candidate network node list are obtained by the distributed node by requesting from the centralized node.

In some embodiments, when the first network node is multiple network nodes, the first registration request message carries the registration information and access query indication information of the terminal;

The first response message includes reception information or rejection information, and the first response message is determined by the access and mobility management functional entity corresponding to each network node based on the registration information and the access query indication information. of;

Determining the target network node based on the first response message includes:

In the network node that sends the reception information, the target network node is determined based on a second local policy.

In a third aspect, embodiments of the present disclosure also provide a network registration method, which is applied to the access and mobility management functional entities corresponding to the centralized nodes, including:

Receive a first registration request message sent by the first requesting entity for requesting the target network node;

Send a response message for determining the target network node to the first requesting entity;

Wherein, the first requesting entity is an access network entity or an access and mobility management function entity corresponding to a distributed node, and the first registration request message originates from a terminal.

In some embodiments, before sending a response message for determining the target network node to the first requesting entity, the step further includes:

Determine a target network node identifier or a candidate network node list for determining the target network node based on the first registration request message;

The sending a response message for determining the target network node to the first requesting entity includes:

A response message carrying the target network node identifier or a candidate network node list used to determine the target network node is sent to the first requesting entity.

In some embodiments, when the first requesting entity is an access network entity and the first registration request message carries registration information and access query indication information of the terminal, the method further includes :

Determine whether to receive the terminal based on the registration information and the access query indication information;

Based on whether the terminal is received, a first response message carrying reception information or rejection information is sent to the first requesting entity.

In some embodiments, the method further includes:

Receive a creation context request message sent by the target access and mobility management function entity for requesting the current accessible network node list corresponding to the terminal;

Send the current list of accessible network nodes to the target access and mobility management function entity.

In some embodiments, the method further includes:

Receive a second registration request message sent by the access network entity for terminal registration;

Based on the second registration request message, determine the current accessible network node list corresponding to the terminal;

Send the current list of accessible network nodes to the terminal.

In the fourth aspect, embodiments of the present disclosure also provide a network registration method, which is applied to the access and mobility management functional entities corresponding to the distributed nodes, including:

Receive a first registration request message sent by the access network entity for requesting the target network node, where the first registration request message originates from the terminal;

Determine whether to receive the terminal based on the first registration request message;

Based on whether to receive the terminal, send a message to the access network entity for determining the target network node. first response message.

In some embodiments, when it is determined not to receive the terminal based on the first registration request message, sending a first response for determining the target network node to the access network entity based on whether the terminal is received. Messages, including:

Send the first registration request message to the access and mobility management function entity corresponding to the centralized node;

Receive a second response message carrying a target network node identifier or a candidate network node list for determining the target network node sent by the access and mobility management function entity corresponding to the centralized node;

The first response message carrying the target network node identifier and the candidate network node list is sent to the access network entity.

In some embodiments, in the case where the first registration request message carries the registration information of the terminal and the access query indication information, the determining whether to receive the terminal based on the first registration request message includes:

The step of sending a first response message for determining a target network node to the access network entity based on whether the terminal is received includes:

Based on whether the terminal is received, the first response message carrying reception information or rejection information is sent to the access network entity.

In some embodiments, the method further includes:

Send the current list of accessible network nodes to the terminal.

In some embodiments, determining the current list of accessible network nodes corresponding to the terminal based on the second registration request message includes:

Send a creation context request message for requesting the current accessible network node list corresponding to the terminal to the access and mobility management functional entity corresponding to the centralized node;

Receive the current list of accessible network nodes sent by the access and mobility management functional entity corresponding to the centralized node.

In a fifth aspect, embodiments of the present disclosure also provide a terminal, including a memory, a transceiver, and a processor, wherein:

Memory, used to store computer programs; transceiver, used to send and receive data under the control of the processor; processor, used to read the computer program in the memory and perform the following operations:

A first registration request message is sent to the access network entity, where the first registration request message is used to determine a target network node and a target access and mobility management function entity corresponding to the target network node.

In some embodiments, the operations further include:

Receive the current list of accessible network nodes sent by the target access and mobility management function entity.

In a sixth aspect, embodiments of the present disclosure also provide an access network entity, including a memory, a transceiver, and a processor, wherein:

Memory, used to store computer programs; transceiver, used to send and receive data under the control of the processor; processor, used to read the computer program in the memory and perform the following operations: receive the first registration sent by the terminal request message;

A second registration request message is sent to the target access and mobility management function entity.

In some embodiments, the first registration request message does not carry the target network node identifier and /Or in the case of determining the terminal information of the target network node, determining the target network node based on the first registration request message includes:

The target network node is determined based on the first response message.

In some embodiments, when the first network node is a centralized node, the first response message includes a target network node identifier or a candidate network node list for determining the target network node.

Determine the target network node based on the first response message carrying the candidate network node list;

In the seventh aspect, embodiments of the present disclosure also provide an access and mobility management functional entity corresponding to a centralized node, including a memory, a transceiver and a processor, wherein:

Memory, used to store computer programs; transceiver, used to send and receive data under the control of the processor; processor, used to read the computer program in the memory and perform the following operations: receive the first requesting entity sent A first registration request message used to request the target network node;

In some embodiments, when the first requesting entity is an access network entity and the first registration request message carries registration information and access query indication information of the terminal, the operation further includes:

In some embodiments, the operations further include:

sending the currently accessible network node to the target access and mobility management function entity list.

In some embodiments, the operations further include:

Determine, based on the second registration request message, a current list of accessible network nodes corresponding to the terminal;

Send the current list of accessible network nodes to the terminal.

In an eighth aspect, embodiments of the present disclosure also provide an access and mobility management functional entity corresponding to a distributed node, including a memory, a transceiver and a processor, wherein:

Based on whether the terminal is received, a first response message for determining a target network node is sent to the access network entity.

Receive a second response message carrying a target network node identifier or a candidate network node list for determining the target network node sent by the access and mobility management functional entity corresponding to the centralized node;

Send the first response message carrying the target network node identifier or the candidate network node list to the access network entity.

The sending, based on whether the terminal is received, to the access network entity a first response message for determining a target network node, comprises:

In some embodiments, the operations further include:

The current list of accessible network nodes is sent to the terminal.

In some embodiments, determining, based on the second registration request message, a current list of accessible network nodes corresponding to the terminal includes:

In a ninth aspect, embodiments of the present disclosure also provide a network registration device, applied to a terminal, including:

A first sending unit configured to send a first registration request message to an access network entity, where the first registration request message is used to determine a target network node and the target access and mobility management function entity corresponding to the target network node. .

In some embodiments, the device further includes:

The first receiving unit is configured to receive the current accessible network node list sent by the target access and mobility management function entity.

In a tenth aspect, embodiments of the present disclosure also provide a network registration device, applied to access network entities, including:

The second receiving unit is configured to receive the first registration request message sent by the terminal;

A first determining unit configured to determine a target network node based on the first registration request message;

The first determining unit is also configured to determine the target access and mobility management function entity corresponding to the target network node based on the preconfigured access and mobility management function information;

The second sending unit is configured to send a second registration request message to the target access and mobility management function entity.

In some embodiments, when the first registration request message does not carry a target network node identifier and/or terminal information used to determine the target network node, the first determining unit includes:

A first determination subunit configured to determine the first network node based on the first registration request message and the first local policy;

A first sending subunit, configured to send the first registration request message to the access and mobility management function entity corresponding to the first network node;

The first receiving subunit is configured to receive the first response message sent by the access and mobility management function entity corresponding to the first network node;

The second determination subunit is used to determine the target network node based on the first response message.

In some embodiments, when the first network node is a distributed node, the second determining subunit includes any one of the following:

A first determination module, configured to determine that the distributed node is the target network node based on the first response message;

A second determination module, configured to determine the target network node based on the first response message carrying the target network node identifier;

A third determination module, configured to determine the target network node based on the first response message carrying a candidate network node list;

The second determining subunit includes:

The fourth determination module is configured to determine the target network node based on the second local policy among the network nodes that send the received information.

In an eleventh aspect, embodiments of the present disclosure also provide a network registration device, which is applied to the access and mobility management functional entities corresponding to the centralized nodes, including:

A third receiving unit configured to receive a first registration request message sent by the first requesting entity for requesting the target network node;

A third sending unit configured to send a response message for determining the target network node to the first requesting entity;

In some embodiments, the device further includes:

a second determination unit, configured to determine a target network node identifier based on the first registration request message or to determine a candidate network node list of the target network node;

The third sending unit includes:

The second sending subunit is configured to send a response message carrying the target network node identifier or a candidate network node list for determining the target network node to the first requesting entity.

In some embodiments, when the first requesting entity is an access network entity, and the first registration request message carries registration information and access query indication information of the terminal, the device further includes :

A third determination unit determines whether to receive the terminal based on the registration information and the access query indication information;

The third sending unit includes:

The third sending subunit is configured to send a first response message carrying reception information or rejection information to the first requesting entity based on whether to receive the terminal.

In some embodiments, the device further includes:

The fourth receiving unit is configured to receive a creation context request message sent by the target access and mobility management function entity for requesting the current accessible network node list corresponding to the terminal;

The fourth sending unit is configured to send the current accessible network node list to the target access and mobility management functional entity.

In some embodiments, the device further includes:

A fifth receiving unit configured to receive a second registration request message for terminal registration sent by the access network entity;

A fourth determination unit configured to determine the current accessible network node list corresponding to the terminal based on the second registration request message;

The fifth sending unit is configured to send the current accessible network node list to the terminal.

In a twelfth aspect, an embodiment of the present disclosure further provides a network registration device, which is applied to an access and mobility management function entity corresponding to a distributed node, including:

The sixth receiving unit is configured to receive a first registration request message sent by the access network entity to request the target network node, where the first registration request message originates from the terminal;

A fifth determination unit configured to determine whether to receive the terminal based on the first registration request message;

A sixth sending unit, configured to send a first response message for determining a target network node to the access network entity based on whether to receive the terminal.

In some embodiments, when it is determined not to receive the terminal based on the first registration request message, the sixth sending unit includes:

The fourth sending subunit is used to send the first registration request message to the access and mobility management function entity corresponding to the centralized node;

The second receiving subunit is configured to receive a second response message carrying a target network node identifier or a candidate network node list for determining the target network node sent by the access and mobility management functional entity corresponding to the centralized node. ;

The fifth sending subunit is configured to send the first response message carrying the target network node identifier or the candidate network node list to the access network entity.

In some embodiments, in the case where the first registration request message carries registration information of the terminal and access inquiry indication information, the fifth determining unit includes:

A third determination subunit, configured to determine whether to receive the terminal based on the registration information and the access query indication information;

The sixth sending unit includes:

A sixth sending subunit, configured to send the first response message carrying reception information or rejection information to the access network entity based on whether to receive the terminal.

In some embodiments, the device further includes:

A seventh receiving unit, configured to receive a second registration request message for terminal registration sent by the access network entity;

A sixth determination unit, configured to determine the current accessible network node list corresponding to the terminal based on the second registration request message;

A seventh sending unit is configured to send the current accessible network node list to the terminal.

In some embodiments, the sixth determining unit includes:

A seventh sending subunit, configured to send a creation context request message for requesting the current accessible network node list corresponding to the terminal to the access and mobility management functional entity corresponding to the centralized node;

The third receiving subunit is configured to receive the current list of accessible network nodes sent by the access and mobility management functional entity corresponding to the centralized node.

In the thirteenth aspect, an embodiment of the present disclosure further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the network registration method described in the first aspect, the network registration method described in the second aspect, the network registration method described in the third aspect, or the network registration method described in the fourth aspect.

The network registration method and device provided by the embodiments of the present disclosure can select a suitable network node for a terminal in a scenario where an access network entity is simultaneously connected to multiple network nodes, thereby enabling the terminal to access the network node and enable the network node to provide services for the terminal.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, a brief introduction will be made below to the drawings that need to be used in the description of the embodiments or related technologies. Obviously, the drawings in the following description are of the present invention. For some disclosed embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without exerting creative efforts.

Figure 1 is one of the flow diagrams of a network registration method provided by an embodiment of the present disclosure;

Figure 2 is a second schematic flowchart of a network registration method provided by an embodiment of the present disclosure;

Figure 3 is a third schematic flowchart of the network registration method provided by an embodiment of the present disclosure;

Figure 4 is a schematic flowchart No. 4 of the network registration method provided by an embodiment of the present disclosure;

Figure 5 is a schematic flow chart of the network registration method provided by an embodiment of the present disclosure.

Figure 6 is a schematic flowchart No. 6 of the network registration method provided by an embodiment of the present disclosure;

Figure 7 is a schematic flow chart of the network registration method provided by an embodiment of the present disclosure;

Figure 8 is the eighth flowchart of the network registration method provided by an embodiment of the present disclosure;

Figure 9 is one of the structural schematic diagrams of a network registration device provided by an embodiment of the present disclosure;

Figure 10 is a second structural schematic diagram of a network registration device provided by an embodiment of the present disclosure;

Figure 11 is the third structural schematic diagram of a network registration device provided by an embodiment of the present disclosure;

Figure 12 is the fourth structural schematic diagram of a network registration device provided by an embodiment of the present disclosure;

FIG13 is a schematic diagram of the structure of a terminal provided in an embodiment of the present disclosure;

Figure 14 is a schematic structural diagram of an access network entity provided by an embodiment of the present disclosure;

Figure 15 is an implementation of the access and mobility management functions corresponding to the centralized node provided by the embodiment of the present disclosure. Schematic diagram of the structure of the body;

FIG16 is a schematic diagram of the structure of an access and mobility management functional entity corresponding to a distributed node provided in an embodiment of the present disclosure.

Detailed ways

In the embodiment of the present disclosure, the term "and/or" describes the association relationship of associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone. these three situations. The character "/" generally indicates that the related objects are in an "or" relationship.

In the embodiment of this disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar to it.

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, not all of them. Based on the embodiments in this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this disclosure.

The technical solutions provided by the embodiments of the present disclosure can be applied to a variety of systems, especially the sixth generation mobile communication standards (6th generation mobile networks, 6G). For example, applicable systems may be fifth generation mobile communication technology (5G) systems, global system of mobile communication (GSM) systems, code division multiple access (code division multiple access, CDMA) systems , Wideband Code Division Multiple Access (WCDMA) general packet radio service (GPRS) system, long term evolution (LTE) system, LTE frequency division duplex, FDD) system, LTE time division duplex (TDD) system, long term evolution advanced (LTE-A) system, universal mobile telecommunication system (UMTS), global interconnection microwave access ( worldwide interoperability for microwave access (WiMAX) system, 5G New Radio (NR) system, etc. These various systems include terminal equipment and network equipment. Also in the system It may include core network parts, such as Evolved Packet System (EPS), 5G System (5GS), etc.

The terminal device involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to users, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc. In different systems, the names of terminal equipment may also be different. For example, in a 5G system, the terminal equipment may be called user equipment (User Equipment, UE). Wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via the Radio Access Network (RAN). The wireless terminal equipment can be a mobile terminal equipment, such as a mobile phone (also known as a "cell phone"). "Telephone) and computers with mobile terminal devices, which may be, for example, portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile devices, which exchange speech and/or data with the radio access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (Personal Digital Assistant, PDA) and other equipment. Wireless terminal equipment can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, and an access point. , remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), user device (user device), are not limited in the embodiments of the present disclosure.

The network device involved in the embodiment of the present disclosure may be a base station, and the base station may include multiple cells that provide services for terminals. Depending on the specific application, a base station can also be called an access point, or it can be a device in the access network that communicates with wireless terminal equipment through one or more sectors on the air interface, or it can be named by another name. The network device may be used to exchange received air frames with Internet Protocol (IP) packets and act as a router between the wireless terminal device and the rest of the access network, where the remainder of the access network may include the Internet Protocol (IP) communication network. Network devices also coordinate attribute management of the air interface. For example, the network device involved in the embodiment of the present disclosure may be a network in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA). Equipment (Base Transceiver Station, BTS), or network equipment (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or long term evolution (LTE) The evolved network equipment (evolutional Node B, eNB or e-NodeB) in the system, the 5G base station (gNB) in the 5G network architecture (next generation system), or the home evolved base station (Home evolved Node B, HeNB), Relay nodes, home base stations (femto), pico base stations (pico), etc. are not limited in the embodiments of the present disclosure. In some network structures, network devices may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized units and distributed units may also be arranged geographically separately.

Network equipment and terminal equipment can each use one or more antennas for multi-input multi-output (MIMO) transmission. MIMO transmission can be single-user MIMO (Single User MIMO, SU-MIMO) or multi-user MIMO. (Multiple User MIMO,MU-MIMO). Depending on the shape and number of root antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoding transmission or beamforming transmission, etc.

In order to facilitate understanding of the embodiments of the present disclosure, terminology or background related to the embodiments of the present disclosure is introduced below:

An important trend in the development of 6G networks is centralized and distributed network architecture. The native design of the network architecture of 5G and previous generations is centralized control. With the development of the network, facing the dual driving forces of business scenarios and technology development, the architectural design of the 6G network needs to consider a distributed architecture, and its control is oriented towards distributed Gradually evolve. With the distributed development of intelligence and cloud computing, new connections and new networks will also become distributed.

6G will cater to diverse scenarios and network needs in the air, space, ground, and sea. The centralized network architecture cannot uniformly meet all scenarios. To cope with this challenge, the 6G network architecture needs to go beyond centralized control and gradually evolve towards a distributed architecture, extending more network functions (such as authentication and authentication) to the edge of the network, and establishing distributed synchronization with different functional levels. Construct micro-cloud unit. Therefore, the 6G networking design can also be called the Distributed Autonomous Network (DAN) architecture or distributed network architecture. The DAN network architecture consists of distributed micro cloud units (Small Cloud Unit (SCU). SCU is the most critical module unit that constitutes the DAN architecture. It can support distributed deployment in the network and has self-contained and autonomous capabilities. Each micro-cloud unit is self-contained and has complete control and data forwarding functions. Multiple micro-cloud units can form autonomous micro-networks based on business needs, and provide targeted network services based on specific business scenarios, user scale, geographical environment and other requirements.

In the distributed network architecture of 6G, multiple micro networks composed of SCUs may be included, each micro network being a network node. In multiple micro networks, there may be a centralized network node (hereinafter referred to as a centralized node) and multiple distributed network nodes (hereinafter referred to as distributed nodes).

However, there is only one network node in the 5G network architecture. The current intra-domain registration process in 5GS includes:

Step 1. The terminal equipment (User Equipment, UE) sends a registration request message (Registration Request) to the access network entity;

Step 2. The access network entity selects the Access and Mobility Management Function (AMF) entity;

Step 3. The access network entity sends a registration request message (Registration Request) to the new AMF entity;

Step 4. The new AMF entity sends the AMF communication UE context transfer request message (Namf_Communication_UEContextTransfer Request) to the previous AMF entity;

Step 5. The previous AMF entity sends the AMF communication UE context transfer response message (Namf_Communication_UEContextTransfer Response) to the new AMF entity;

Step 6. The new AMF entity sends an identity request message (Identity Request) to the UE;

Step 7: The UE sends an identity response message (Identity Response) to the new AMF entity.

Currently, when a UE performs network registration, the access network entity does not involve the selection of a network node (which may also be called a network unit). However, the 6G network adopts a decentralized hierarchical network with centralized and distributed collaboration. The 6G network is organized through centralized and distributed collaboration and distributed autonomy. On the one hand, it extends more network functions to the edge of the network, and on the other hand, it centralizes global core functions to support more complex services through cloud-network integration and distributed collaboration. When access network entities (such as base stations) are connected to multiple network nodes (including distributed nodes and centralized nodes) at the same time, how to effectively select appropriate network nodes to serve terminals is a problem that distributed networks need to solve. Therefore, embodiments of the present disclosure propose a network registration method, which is applied to distributed network architecture scenarios.

Figure 1 is one of the schematic flow diagrams of a network registration method provided by an embodiment of the present disclosure. As shown in Figure 1, an embodiment of the present disclosure provides a network registration method, the execution subject of which can be a terminal, such as a mobile phone, etc. The method includes:

Step 110: Send a first registration request message to an access network entity, where the first registration request message is used to determine a target network node and a target access and mobility management function entity corresponding to the target network node.

Specifically, the access network entity can connect to multiple network nodes at the same time. It should be understood that the access network entity can connect to centralized nodes and distributed nodes. For example, the access network entity can connect to a centralized node and multiple distributed nodes. , you can also connect multiple centralized nodes and multiple distributed nodes.

The terminal sends a first registration request message to the access network entity. The first registration request message can be used by the terminal to request the access network entity to determine a target network node for the terminal among multiple network nodes. The target network node can be a service for the terminal. network node, and determine the target access and mobility management functional entity corresponding to the target network node.

Access network entity refers to the physical network that implements the transmission and bearing function between the user network interface (User Network Jnterface, UNI) and the service node interface (Service Network Interface, SNI), such as the Radio Access Network (Radio Access Network, RAN) entity or the (wired) access network (Access Network, AN) entity.

The access and mobility management functional entity refers to the entity responsible for handling connection and mobility management tasks in the network node. For example, it can be responsible for the encryption and integrity of non-access stratum (NAS) messages, registration, access, mobility, authentication and transparent transmission of short messages, and the allocation of evolved packet system bearer identities (EPS Bearer Id) when interacting with the evolved packet system (EPS) network. The names of the access and mobility management functional entities are not specified in the embodiments of the present disclosure. It is limited that as long as the network access and mobility management functions can be realized, such as the access and mobility management function entity in the 5G network can be called the access and mobility management function (Access and Mobility management Function, AMF) entity, and the access and mobility management function entity in the 4G network can be called the mobility management (Mobility Management Entity, MME) entity.

The network registration method provided by the embodiments of the present disclosure can select an appropriate network node for the terminal in a scenario where the access network entity is connected to multiple network nodes at the same time, thereby enabling the terminal to access the network node and enabling the network node to provide services to the terminal. .

Specifically, the target network node identifier is used to identify the target network node, such as the identity identifier (Identity, ID) of the network node, etc.

The terminal information used to determine the target network node refers to the terminal information carried in the first registration request message, which can be used to determine the target network node. The terminal information can be any one of the following or a combination thereof: a globally unique temporary UE identifier, a globally unique AMF identifier (Globally Unique AMF ID, GUAMI) and a permanent equipment identifier (Permanent Equipment Identifier, PEI) of the terminal.

The globally unique temporary UE identity can be called 5G Globally Unique Temporary UE Identity (5G-GUTI) in the 5G network, and the globally unique AMF identifier can be called 5G GUAMI in the 5G network.

It should be understood that the embodiment of the present disclosure does not limit the name, as long as it can identify the UE or identify the access and mobility management functional entity.

It should be understood that the target network node identification and the terminal information used to determine the target network node should be valid, that is, the target network node determined based on the target network node identification or the target network node determined based on the terminal information can serve the terminal. If the target network node identifier carried by the first registration request message is invalid, it is deemed that it does not carry the target network node identifier. Similarly, if the target network node identifier determined by the terminal information carried by the first registration request message is invalid, it is deemed that it does not carry the target network node identifier. It does not carry terminal information.

In the network registration method provided by the embodiments of the present disclosure, the first registration request message carries the target network node identifier and/or terminal information used to determine the target network node. The terminal can send the first registration request message so that the access network entity is The terminal determines the access and mobility management functional entities, thereby enabling the terminal to access the network node and enabling the network node to provide services to the terminal.

Specifically, the terminal side may pre-configure a list of accessible network nodes. The accessible network nodes may include network nodes such as network nodes that are allowed to be accessed and default network nodes. It should be understood that the allowable network nodes among the accessible network nodes are The accessed network node may be the network node updated by the UE when it last accessed the network node.

It should be understood that due to network changes and other reasons, the preconfigured list of accessible network nodes may not conform to the current network, so the target network node identification determined based on the preconfigured list of accessible network nodes may be invalid.

In some embodiments, the method further includes:

Specifically, after the terminal accesses the target access and mobility management functional entity, it may receive the current accessible network node list sent by the target access and mobility management functional entity. The current list of accessible network nodes can be determined by the target access and mobility management functional entity according to the network nodes pre-configured in the network that the UE is allowed to access. For example, the subscription data of the UE can be stored in the network, and the target access The mobility management function entity may determine the UE's current accessible network node list based on the UE's subscription data.

With the network registration method provided by the embodiments of the present disclosure, the terminal can update the list of accessible network nodes and obtain the latest list of accessible network nodes, so that the terminal can directly select available network nodes during the next network switch, improving terminal access. The speed of the network.

Figure 2 is a second schematic flowchart of a network registration method provided by an embodiment of the present disclosure. As shown in Figure 2, an embodiment of the present disclosure provides a network registration method. The execution subject may be an access network entity. The method includes:

Step 210: Receive the first registration request message sent by the terminal;

Specifically, the terminal sends a first registration request message to the access network entity, and the access network learns based on the first registration request message that the terminal requests to initiate registration with the network node. Since the access network entity can connect to multiple network nodes at the same time, it is necessary to further determine which network node to initiate registration to.

Step 220: Determine the target network node based on the first registration request message;

The first registration request message may indicate the target network node that the terminal wishes to access. If the first registration request message does not indicate the target network node that the terminal wishes to access or the target network node that the terminal wishes to access is invalid, the target network node that the terminal wishes to access may be The network access entity selects an appropriate network node for the terminal (such as a network node that can serve the terminal) as the target network node.

Step 230: Determine the target access and mobility management function entity corresponding to the target network node based on the preconfigured access and mobility management function information;

Specifically, the access and mobility management function information may be pre-configured on the access network entity side. The access and mobility management function information may include the network node identification to which each access and mobility management function entity belongs. .

Step 240: Send a second registration request message to the target access and mobility management function entity.

The second registration request message is used by the access network entity to request the target access and mobility management function entity to complete the registration process of the terminal.

For the introduction of target network node identification and terminal information, refer to the above introduction and will not be repeated here.

Determining a first network node based on the first registration request message and a first local policy;

The target network node is determined based on the first response message.

Specifically, the situation in which the first registration request message does not carry the target network node identification and/or the terminal information used to determine the target network node includes any one of the following three situations or a combination thereof:

The first situation means that the first registration request message does not carry the target network node identifier and the terminal information used to determine the target network node;

The second situation means that the access network entity needs to determine the target network node based on the target network node identifier, but the first registration request message does not carry the target network node identifier;

The third situation means that the access network entity needs to determine the target network node based on the terminal information used to determine the target network node, but the first registration request message does not carry the terminal information used to determine the target network node. .

In the above three situations, the access network entity cannot directly determine the target network node according to the first registration request message.

The first network node refers to the network node selected by the access network entity and used to determine the target network node. The first local policy may be pre-configured. For example, the network node with the smallest network load may be selected as the first network node according to the network load. For example, the centralized node may be selected as the first network node based on the network node type. It should be understood that the above examples are provided to facilitate understanding of the present disclosure and should not constitute any limitation on the present disclosure.

Since the access and mobility management functional entity is responsible for functions such as registration, access and mobility, the first registration request message may be sent to the access and mobility management functional entity corresponding to the first network node, The access and mobility management functional entity corresponding to the first network node is responsible for selecting the target network node.

The access and mobility management function entity corresponding to the first network node returns the selected target network node or information related to the target network node selection to the radio access network entity through the first response message;

The radio access network entity determines the target network node based on the target network node or information related to target network node selection carried by the first response message.

The network registration method provided by the embodiment of the present disclosure can enable the access network entity to select the first network node used to determine the target network node when the access network entity cannot directly determine the target network node based on the first registration request message. And determine the target network node according to the first response message sent by the first network node, ensuring that in the scenario where the access network entity is connected to multiple network nodes at the same time, the appropriate network node is selected for the terminal, so that the terminal can access the network node, Implement network nodes to provide services to terminals.

Specifically, when the access network entity selects the centralized node as the first network node, the access network entity sends the first registration request message of the terminal to the centralized node, and the first registration request message may carry the registration of the terminal. Information, such as business requirements, terminal identity, etc.

Since it is the access network entity that sends the first registration request message to the centralized node, the centralized node can determine the location information of the terminal based on the sender (access network entity) of the first registration request message.

For example, the centralized node can determine the identity of the terminal through the first registration request message, and determine the subscription data corresponding to the terminal based on the pre-configured subscription data in the network, combined with other registration information of the terminal carried in the first registration request message ( Such as business requirements), and based on the location information of the terminal determined by the access network entity, select an appropriate network node as the target network node of the terminal to provide services for the terminal.

In some embodiments, the centralized node can select one or more network nodes. When the centralized node selects one network node, the network node selected by the centralized node is the target network node; when the centralized node selects multiple network nodes, Below, the network nodes selected by the centralized nodes are candidate network nodes.

The centralized node may send the identification of the selected target network node (target network node identification) or multiple candidate network nodes (candidate network node list) to the access network entity through the first response message.

In the case where the first response message includes the target network node identifier, the access network entity directly determines the target network node according to the target network node identifier, and accesses the access and mobility management function entity corresponding to the target network node.

In the case where the first response message includes a candidate network node list for determining the target network node, the access network entity also needs to complete the selection of the target network node in the candidate network node list according to the local policy. The local policy may It is pre-configured. For example, the network node with the smallest network load can be selected as the target network node according to the network load; the appropriate network node can be selected as the target network node according to the business needs of the terminal. It should be understood that the above examples are provided to facilitate understanding of the present disclosure and should not constitute any limitation on the present disclosure.

The network registration method provided by the embodiments of the present disclosure can enable the centralized node to select the target network node or candidate network node when the access network entity cannot directly determine the target network node based on the first registration request message, so that the access network entity can In scenarios where multiple network nodes are connected at the same time, an appropriate network node is selected for the terminal, so that the terminal can access the network node and the network node provides services to the terminal.

Specifically, when the access network entity selects the distributed node as the first network node, the access network entity sends the first registration request message of the terminal to the distributed node, and the first registration request message may carry the terminal Registration information, such as business requirements, terminal identity, etc.

Since it is the access network entity that sends the first registration request message to the distributed node, the distributed node can determine the location information of the terminal according to the sending end (access network entity) of the first registration request message.

For example, the distributed node can determine the identity of the terminal through the first registration request message, and determine the subscription data corresponding to the terminal based on the preconfigured subscription data in the network, combined with other registration information of the terminal carried in the first registration request message. (such as business requirements), and based on the location information of the terminal determined by the access network entity, etc., determine whether it can serve the terminal. If it can serve the terminal, receive the terminal and send the first response message to the access network entity, The first response message carries reception information, so that the access network entity can determine that the distributed node is the target network node.

If the distributed node cannot serve the terminal, the first registration request message is sent to the centralized node to which it is connected. The centralized node selects an appropriate network node as the target network node of the terminal to provide services to the terminal.

The centralized node may send the identification of the selected target network node (target network node identification) or multiple candidate network nodes (candidate network node list) to the distributed node through the second response message.

The distributed node then sends the target network node identifier or the candidate network node list to the access network entity through a first response message.

In the case where the first response message includes a candidate network node list for determining the target network node, the access network entity also needs to complete the selection of the target network node in the candidate network node list according to the local policy. The local policy may It is pre-configured. For example, the network node with the smallest network load can be selected as the target network node according to the network load; the appropriate network node can be selected as the target network node according to the business requirements of the terminal. It should be understood that the above examples are provided to facilitate understanding of the present disclosure and should not constitute any limitation on the present disclosure.

The network registration method provided by the embodiments of the present disclosure can enable the distributed node to select the target network node or the candidate network node when the access network entity cannot directly determine the target network node based on the first registration request message, so as to implement the network registration in the access network. In the scenario where the entity is connected to multiple network nodes at the same time, the appropriate network node is selected for the terminal, so that the terminal can access the network node and the network node provides services to the terminal.

Specifically, when the access network entity selects multiple network nodes as the first network node, the access network entity sends the first registration request message of the terminal to each network node. The first registration request message may Carrying the registration information of the terminal and the access query indication information; the registration information of the terminal may include registration-related information such as business requirements, terminal identity, etc., and the access query indication information is used to query each network node whether it can receive the terminal. .

Since it is the access network entity that sends the first registration request message to each network node, each network node can determine the location information of the terminal according to the sending end (access network entity) of the first registration request message.

For example, each network node can determine the identity of the terminal through the first registration request message, and determine the subscription data corresponding to the terminal based on the pre-configured subscription data in the network, combined with other registrations of the terminal carried in the first registration request message. information (such as business requirements), as well as the location information of the terminal determined based on the access network entity, etc., to determine whether it can serve the terminal. If it can serve the terminal, send a first response message containing the received information to the access network entity. ; If it cannot be received, send a first response message containing rejection information to the access network entity.

The network node that sends the received information is used as a candidate network node, and the target network node is determined among the candidate network nodes based on the second local policy. The second local policy can be pre-configured. For example, the network node with the smallest network load can be selected as the target network node according to the network load; the appropriate network node can be selected as the target network node according to the business requirements of the terminal. It should be understood that the above examples are provided to facilitate understanding of the present disclosure and should not constitute any limitation on the present disclosure.

Exemplarily, the access network entity sends first registration request messages to network node A, network node B and network node C respectively. Network node A sends and receives information through the first response message, and network node B sends rejection through the first response message. Information, network node C sends and receives information through the first response message. The access network entity selects the target network node among network node A and network node C. The load of network node A is greater than that of network node C. The second local policy is to select the network node with the smallest current load as the target network node, and then select network node C as the target network node.

The network registration method provided by the embodiment of the present disclosure can, when the access network entity cannot directly determine the target network node based on the first registration request message, determine the target network node based on whether each network node can receive the terminal, thereby realizing the selection of a suitable network node for the terminal in a scenario where the access network entity is simultaneously connected to multiple network nodes, thereby enabling the terminal to access the network node and enable the network node to provide services for the terminal.

Figure 3 is the third flow diagram of the network registration method provided by the embodiment of the present disclosure. As shown in Figure 3, the embodiment of the present disclosure provides a network registration method, the execution subject of which can be the access and mobility management corresponding to the centralized node. Functional entity, the method includes:

Step 310: Receive the first registration request message sent by the first requesting entity for requesting the target network node;

Specifically, when the first requesting entity is an access network entity, it means that the access network entity selects a centralized node as the first network node, and the access network entity requests the target network node from the centralized node.

For the case where the first requesting entity is the access and mobility management function entity corresponding to the distributed node, it means that when the access network entity selects the distributed node as the first network node, the distributed node cannot serve the terminal. , the access and mobility management functional entity corresponding to the distributed node requests the target network node from the centralized node.

Step 320: Send a response message for determining the target network node to the first requesting entity;

Specifically, when the first requesting entity is an access network entity, the access and mobility management function entity corresponding to the centralized node sends a first response message for determining a target network node to the access network entity.

When the first requesting entity is a distributed node, the access and mobility management function entity corresponding to the centralized node sends a second response message for determining the target network node to the access and mobility management function entity corresponding to the distributed node. In some embodiments, the access and mobility management function entity corresponding to the distributed node may send a first response message for determining the target network node to the access network entity.

It should be understood that the response message includes a first response message and a second response message, and the response message is used to determine the target network node. For example, it may include a target network node identifier or a candidate network node list used to determine the target network node.

It should be understood that in a network, the number of centralized network nodes is greater than or equal to 1. The centralized node has the data of all distributed nodes within the management scope, such as the subscription data of the distributed nodes. The data saved by the distributed nodes includes UE context information (including session context information), subscription data of some UEs, and other information.

Specifically, the first registration request message is initially initiated by the terminal and sent to the access network entity, and the access network entity forwards the first registration request message to the centralized node or distributed node.

The network registration method provided by the embodiment of the present disclosure can enable the centralized node to send a request to the first requesting entity when the first requesting entity cannot directly determine the target network node based on the first registration request message. Sending a first response message for determining the target network node enables selecting an appropriate network node for the terminal in a scenario where the access network entity is connected to multiple network nodes at the same time, thereby enabling the terminal to access the network node and realizing that the network node is The terminal provides services.

In some embodiments, before sending a response message for determining a target network node to the first requesting entity, the step further includes:

Specifically, the first registration request message may carry the terminal's registration information, such as business requirements, terminal identity, etc. The centralized node may also determine the location information of the terminal according to the first registration request message.

In some embodiments, the centralized node may select one or more network nodes. When the centralized node selects one network node, the network node selected by the centralized node is the target network node; when the centralized node selects multiple network nodes, the network node selected by the centralized node is the candidate network node.

The centralized node may send the identification of the selected target network node (target network node identification) or multiple candidate network nodes (candidate network node list) to the first requesting entity through a response message.

The network registration method provided by the embodiments of the present disclosure can enable the centralized node to select the target network node or the candidate network node when the first requesting entity cannot directly determine the target network node based on the first registration request message, and ultimately implement the access network In the scenario where the entity is connected to multiple network nodes at the same time, the appropriate network node is selected for the terminal, so that the terminal can access the network node and the network node provides services to the terminal.

Specifically, the first registration request message may carry the registration information of the terminal and the access inquiry indication information; the registration information of the terminal may include registration-related information such as business requirements, terminal identity, etc., and the access inquiry indication information is used for Each network node is asked if it can receive the terminal.

The centralized node may determine the location information of the terminal according to the sender (access network entity) of the first registration request message.

For example, the centralized node can determine the identity of the terminal through the first registration request message, and determine the subscription data corresponding to the terminal based on the pre-configured subscription data in the network, combined with other registration information of the terminal carried in the first registration request message ( Such as business requirements), and based on the location information of the terminal determined by the access network entity, etc., determine whether it can serve the terminal. If it can serve the terminal, then send a first response message containing the reception information to the access network entity; if If it cannot be received, a first response message containing rejection information is sent to the access network entity.

According to the network registration method provided by the embodiments of the present disclosure, the centralized node can send a first response message containing reception information or rejection information to the access network entity based on whether it can serve the terminal, so that the access network entity can based on the first response The message selects the target network node from the network nodes that can serve the terminal, so that in the scenario where the access network entity is connected to multiple network nodes at the same time, the appropriate network node is selected for the terminal, so that the terminal can access the network node, achieving Network nodes provide services to terminals.

In some embodiments, the method further includes:

Specifically, the target access and mobility management function entity is the access mobility management function entity currently serving the terminal. After the target access and mobility management function entity completes the registration process of the terminal, it can determine based on the local policy to send a create context request message to the centralized node during the registration process. The create context request message is used to obtain the current list of accessible network nodes of the terminal, that is, the network nodes currently allowed to access.

It should be understood that in this case, the access and mobility management functional entity corresponding to the centralized node is not the target access and mobility management functional entity.

In the network registration method provided by the embodiments of the present disclosure, the access and mobility management functional entity corresponding to the centralized node can provide the current accessible network node list corresponding to the terminal to the target access and mobility management functional entity, thereby Update the list of accessible network nodes of the terminal so that the terminal can obtain the latest list of accessible network nodes, so that the terminal can directly select available network nodes during the next network switch and improve the speed of the terminal accessing the network.

In some embodiments, the method further includes:

Send the current list of accessible network nodes to the terminal.

Specifically, in this case, the access and mobility management functional entity corresponding to the centralized node is the target access and mobility management functional entity. The second registration request message is used by the access network entity to request the access and mobility management function entity corresponding to the centralized node to complete the registration process of the terminal.

The target access and mobility management function entity completes the registration process of the terminal based on the second registration request message.

The second registration request message may also carry the registration information of the terminal. The access and mobility management functional entity corresponding to the centralized node is determined based on the local policy. During the registration process, based on the terminal's subscription data and related network policies, the terminal's current list of accessible network nodes is obtained, that is, the list of network nodes currently allowed to access. network node. and sending the current accessible network node list to the terminal.

In the network registration method provided by the embodiments of the present disclosure, the access and mobility management functional entity corresponding to the centralized node can provide the current list of accessible network nodes corresponding to the terminal, thereby Update the list of accessible network nodes of the terminal so that the terminal can obtain the latest list of accessible network nodes, so that the terminal can directly select available network nodes during the next network switch and improve the speed of the terminal accessing the network.

Figure 4 is a schematic flow chart of the fourth network registration method provided by an embodiment of the present disclosure. As shown in Figure 4, an embodiment of the present disclosure provides a network registration method, the execution subject of which can be the access and mobility corresponding to the distributed node. To manage functional entities, the method includes:

Step 410: Receive the first registration request message sent by the access network entity for requesting the target network node.

Step 420: Determine whether to receive the terminal based on the first registration request message.

The first registration request message may carry the terminal's registration information, such as business requirements, terminal identity, etc.

For example, the distributed node can determine the identity of the terminal through the first registration request message, and determine the subscription data corresponding to the terminal based on the preconfigured subscription data in the network, combined with other registration information of the terminal carried in the first registration request message. (such as business requirements), and determine whether it can serve the terminal based on the location information of the terminal determined by the access network entity.

Step 430: Based on whether to receive the terminal, send a first response message for determining the target network node to the access network entity.

For example, if the terminal can be served, the terminal is received, a first response message is sent to the access network entity, and the first response message carries reception information, so that the access network entity can determine that the distributed node is the Describe the target network node. If the distributed node cannot serve the terminal, other methods can be used to provide the access network entity with information related to the target network node. For example, the first registration request message can be sent to the centralized node connected to itself. The centralized node selects an appropriate network node as the target network node of the terminal to provide services to the terminal.

In some embodiments, in a case where it is determined based on the first registration request message that the terminal is not received, the sending, based on whether the terminal is received, to the access network entity a first response message for determining a target network node includes:

Sending the first response message carrying the target network node identifier or the candidate network node list to the access network entity.

For the method for the access and mobility management functional entity corresponding to the centralized node to determine the target network node identifier or the method for determining the candidate network node list of the target network node, refer to the above embodiments and will not be described again here.

The first registration request message may carry the registration information of the terminal and the access inquiry indication information; the registration information of the terminal may include registration-related information such as business requirements, terminal identity, etc., and the access inquiry indication information is used to provide each The network node asks if it can receive the terminal.

Exemplarily, the access and mobility management functional entity corresponding to the distributed node can determine the identity of the terminal through the first registration request message, and determine the subscription data corresponding to the terminal based on the pre-configured subscription data in the network, combined with the second registration request message. A registration request message carries other registration information of the terminal (such as business requirements), as well as the location information of the terminal determined based on the access network entity, etc. to determine whether it can serve the terminal.

If the terminal can be served, a first response message containing reception information is sent to the access network entity; if it cannot be received, a first response message containing rejection information is sent to the access network entity.

In the network registration method provided by the embodiments of the present disclosure, the distributed node can send a first response message containing reception information or rejection information to the access network entity based on whether it can serve the terminal, so that the access network entity can based on the first response message. The response message selects the target network node from the network nodes that can serve the terminal, so that in the scenario where the access network entity is connected to multiple network nodes at the same time, the appropriate network node is selected for the terminal, so that the terminal can access the network node. Implement network nodes to provide services to terminals.

In some embodiments, the method further includes:

Send the current list of accessible network nodes to the terminal.

Specifically, in this case, the access and mobility management functional entity corresponding to the distributed node is the target access and mobility management functional entity. The second registration request message is used by the access network entity to request the distributed corresponding access and mobility management function entity to complete the registration process of the terminal.

The second registration request message may also carry the registration information of the terminal. The distributed corresponding access and mobility management functional entity is determined based on the local policy. During the registration process, based on the terminal's subscription data and related network policies, the terminal's current list of accessible network nodes is obtained, that is, the list of network nodes currently allowed to access. network node. and sending the current accessible network node list to the terminal.

Specifically, the access and mobility management functional entity corresponding to the distributed node is the target access and mobility management functional entity. The access and mobility management functional entities corresponding to the distributed nodes complete the The registration process of the UE, and based on the local policy, determines to send a create context request message to the centralized node during the registration process to obtain the network nodes that the UE is currently allowed to access.

In the network registration method provided by the embodiments of the present disclosure, the access and mobility management functional entity corresponding to the distributed node can provide the terminal with the current accessible network node list corresponding to the terminal, thereby realizing the terminal's accessible network node The list update enables the terminal to obtain the latest list of accessible network nodes, so that the terminal can directly select available network nodes during the next network switch, thereby improving the speed of the terminal accessing the network.

Figure 5 is a schematic flow chart of a network registration method provided by an embodiment of the present disclosure. As shown in Figure 5, an embodiment of the present disclosure provides a network registration method. The method is applied to an access network entity to target based on the information carried by the UE. Network node selection scenarios include:

Step 0: Information that needs to be configured in advance, as follows:

Step 0-1: First configure the network nodes that the UE is allowed to access in the network, for example, configure the network nodes that the terminal is allowed to access in the form of subscription data;

Step 0-2, configuring network nodes on the UE side, including network nodes such as network nodes allowed to be accessed and default network nodes;

Step 0-3: Access and mobility management function information configured on the access network entity side, including the identity of the network node to which it belongs.

Step 1: The terminal sends a first registration request message to the access network entity. The information carried includes the requested target network node identification and/or terminal information. The terminal information may include a UE identification, a valid globally unique temporary UE identification, a valid global Unique AMF identifier, configured default network node identification information (list) and other information. The target network node identifier may include a target network node identifier or a list of network node identifiers that can be used as target network nodes.

Step 2, target network node selection: When the access network entity receives the first registration request message from the UE, it selects the target network node based on the valid target network node information or other valid terminal information carried in the first registration request message, such as the UE identity, A valid globally unique temporary UE identifier, a valid globally unique AMF identifier, or further combined with information such as load or local policy of the network node, selects the corresponding network node as the target network node. Then access and mobility management based on local configuration management function information and target network node identification, and selects the access and mobility management functional entity corresponding to the target network node identification.

Step 3: The access network entity sends a second registration request message to the selected target access and mobility management function entity, and carries information such as the UE identifier or a valid globally unique temporary identifier, requested network node identifier information, and UE location information.

Step 4: The target access and mobility management function entity that receives the second registration request message completes the registration process of the UE.

If the current network node that the UE is allowed to access is determined by the centralized node, perform steps 5 and 6; if the current network node that the UE is allowed to access is determined by the target network node, perform step 7. , step 5 and step 6 are omitted.

When the network node currently allowed to be accessed by the UE is determined by the centralized node:

Step 5: If the target access and mobility management function entity cannot determine the terminal's current accessible network node list based on the local policy, it sends a create context request message to the centralized node. The information carried includes the UE identifier or a valid globally unique temporary UE. identification, current target network node identification, UE location information and other information.

Step 6: The centralized node determines the UE's current list of accessible network nodes based on the UE's subscription data, the UE's location information, relevant network policies and other information. The access and mobility management function entity corresponding to the centralized node sends a create context response message to the target access and mobility management function entity. The create context response message may carry information such as the UE's current list of accessible network nodes.

When the network node currently allowed to be accessed by the UE is determined by the target network node:

Step 7: The target network node determines the current list of network nodes that the UE can access based on the acquired subscription data of the UE, the location information of the UE, related network policies and other information.

Step 8: Finally, the access and mobility management function entity corresponding to the target network node sends a registration acceptance message to the UE. The registration acceptance message can carry: the current list of accessible network nodes, a globally unique temporary UE identifier and other information.

Note: The network node can be a distributed network node or a centralized network node. There are no limitations here.

Figure 6 is a schematic flowchart No. 6 of a network registration method provided by an embodiment of the present disclosure. As shown in Figure 6, an embodiment of the present disclosure provides a network registration method, which is applied to connect an access network entity to a centralized node, and is based on The scenario where the first local policy selects the centralized node as the first network node includes:

Step 0: Information that needs to be configured in advance is as follows:

Step 0-2: Configure network nodes on the UE side, including network nodes allowed to be accessed, default network nodes and other network nodes;

Step 1: The terminal sends a first registration request message to the access network entity. The information carried includes the requested target network node identification and/or terminal information. The terminal information may include a UE identification, a valid globally unique temporary UE identification, a valid global Unique AMF identifier, configured default network node identification information (list) and other information. The target network node identifier may include a target network node identifier or a list of network nodes that can be used as target network nodes.

Step 2a: When the access network entity receives the first registration request message from the UE, it based on the valid target network node identifier carried in the first registration request message or other valid terminal information, such as the UE identifier or a valid globally unique Temporary UE identification, the corresponding target network node cannot be selected. The access network entity may select the centralized node as the first network node based on the first local policy, and send the first registration request message to the access and mobility management function entity of the centralized node. The information carried includes requested network node identification information, UE identification or a valid globally unique temporary UE identification, configured default network node identification (list) information, UE location information and other information.

Step 2b: After receiving the first registration request message, the centralized node selects an appropriate network (list) based on the subscription data, requested network node identification, network policy, business requirements and location information and sends the selected target through the first response message. The network node (or candidate network node list) is sent to the access network entity, and the information included includes the candidate target network node identifier or the candidate network node list, and may also include information such as network node load.

Step 3: The access network entity selects a suitable network node as the target network node based on the information obtained in step 2 and based on the local policy, load of the network node and other information, and sends the third node to the access mobility management function entity of the target network node. 2. Registration request message, the information carried includes UE registration information and UE location information.

When the network node that the UE is currently allowed to access is determined by the centralized node:

When the network node that the UE is currently allowed to access is determined by the target network node:

Step 7: The target network node determines a list of network nodes that the UE can currently access based on the acquired UE's subscription data, UE location information, and related network policies.

Figure 7 is a schematic flow chart of the network registration method provided by an embodiment of the present disclosure. As shown in Figure 7, an embodiment of the present disclosure provides a network registration method. The method is applied to the access network entity to select distribution based on the first local policy. Scenarios in which the node is the first network node include:

Step 0: Information that needs to be configured in advance, as follows:

Step 2a: When the access network entity receives the first registration request message from the UE, it based on the valid target network node identifier carried in the first registration request message or other valid terminal information, such as the UE identifier or a valid globally unique Temporary UE identification, the corresponding target network node cannot be selected. The access network entity may select the distributed node as the first network node based on the first local policy, and send the first registration request message to the access and mobility management function entity of the distributed node.

Step 3: The distributed network node as the first network node determines whether it can serve the UE based on the subscription data or load conditions. If it can serve the UE, it receives it; if it cannot serve the UE, it sends the first registration request message. to centralized nodes. After receiving the first registration request message, the access and mobility management function entity corresponding to the centralized node selects the target network node or candidate network node list based on the subscription data, business requirements and location information, and network node load, and responds to the distributed node The access and mobility management functional entity sends a second response message, where the second response message carries a list of target network nodes or candidate network nodes.

Step 2b: The distributed node sends the target network node or candidate network node list selected by the centralized node to the access network entity through the first response message, and may also send information such as network node load to the access network entity.

Step 4: The access network entity determines the target network node based on the target network node or candidate network node list, combined with local policy, network node load and other information, selects the access and mobility management function entity corresponding to the target network node, and adds the The second registration request message is sent to the access and mobility management function entity of the selected target network node.

Step 5: The target access and mobility management function entity that receives the second registration request message completes the registration process of the UE.

When the network node that the UE is currently allowed to access is determined by the centralized node, perform steps 6 and 7; when the network node that the UE is currently allowed to access is determined by the target network node, perform steps 8 and 6. and step 7 omitted.

Step 6: If the target access and mobility management function entity cannot determine the current list of accessible network nodes of the terminal based on the local policy, it sends a create context request message to the centralized node, which carries information including the UE identifier or a valid globally unique temporary UE identifier, the current target network node identifier, the UE location information, and other information.

Step 7: The centralized node determines the UE's current accessible network node list based on the UE's subscription data, the UE's location information, relevant network policies and other information. The access and mobility management function entity corresponding to the centralized node sends a create context response message to the target access and mobility management function entity. The create context response message may carry information such as the UE's current list of accessible network nodes.

Step 8: The target network node determines a list of network nodes that the UE can currently access based on the acquired UE's subscription data, UE location information, and related network policies.

Step 9: Finally, the access and mobility management function entity corresponding to the target network node sends a registration acceptance message to the UE. The registration acceptance message can carry: the current list of accessible network nodes, a globally unique temporary UE identifier and other information.

FIG8 is a flowchart of an eighth network registration method provided by an embodiment of the present disclosure. As shown in FIG8 , an embodiment of the present disclosure provides a network registration method, which is applied to a scenario in which an access network entity first selects multiple network nodes as first network nodes, and then determines a target network node according to a response of the first network node, including:

Step 0: Information that needs to be configured in advance is as follows:

Step 2: When the access network entity receives the first registration request message from the UE, it based on the valid target network node identifier carried in the first registration request message or other valid terminal information, such as the UE identifier or a valid globally unique Temporary UE identification, the corresponding target network node cannot be selected. The access network entity may select multiple network nodes as first network nodes based on the first local policy, or network node load and other information, and send the first registration request message to the access and mobility management functions of these first network nodes. Entity, the information carried in the first registration request message includes registration information, access query instructions and other information.

Step 3: The access and mobility management functional entities of these first network nodes determine whether to accept the first registration request message based on the access query indication information. Then based on the first registration request message and the UE location information, it is determined whether the UE can be served, and the determined result is If sent to the access network entity through the first response message, the information carried includes reception information or rejection information. The first response message may also carry information such as network node identification and load information.

Step 4: Based on the information received in Step 3, the access network entity determines a network node that can serve the UE as the target network node based on the second local configuration, network node load and other information. and sending a second registration request message to the target access and mobility management function entity of the selected target network node.

When the network node that the UE is currently allowed to access is determined by the centralized node, perform steps 5 and 6; when the network node that the UE is currently allowed to access is determined by the target network node, perform steps 7 and 5. and step 6 omitted.

Step 6: If the target access and mobility management functional entity cannot determine the terminal's current accessible network node list based on the local policy, it sends a create context request message to the centralized node. The information carried includes the UE identifier or a valid globally unique temporary UE. identification, current target network node identification, UE location information and other information.

The device provided by the embodiment of the present disclosure will be introduced below with reference to the drawings in the embodiment of the present disclosure.

Referring to Figure 9, Figure 9 is one of the schematic structural diagrams of a network registration device provided by an embodiment of the present disclosure. An embodiment of the present disclosure provides a network registration device that can be applied to a terminal, including:

The first sending unit 910 is configured to send a first registration request message to the access network entity. The first registration request message is used to determine the target network node and the target access and mobility management functions corresponding to the target network node. entity.

In some embodiments, the device further includes:

The methods and devices provided in the various embodiments of the present disclosure are based on the same application concept. Since the network registration method and the network registration device solve problems in similar principles and can achieve the same technical effects, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

Referring to Figure 10, Figure 10 is a second structural schematic diagram of a network registration device provided by an embodiment of the present disclosure. An embodiment of the present disclosure provides a network registration device that can be applied to access network entities, including:

The second receiving unit 1010 is used to receive the first registration request message sent by the terminal;

The first determining unit 1020 is configured to determine the target network node based on the first registration request message;

The first determining unit 1020 is also configured to determine the target access and mobility management function entity corresponding to the target network node based on the preconfigured access and mobility management function information;

The second sending unit 1030 is configured to send a second registration request message to the target access and mobility management function entity.

In some embodiments, when the first registration request message does not carry a target network node identifier and/or terminal information used to determine the target network node, the first determining unit 1020 includes:

In some embodiments, when the first network node is a distributed node, the second determining subunit includes any of the following:

The second determination subunit includes:

The methods and devices provided by each embodiment of the present disclosure are based on the concept of the same application. Since the network registration method and the network registration device solve problems in similar principles and can achieve the same technical effect, the implementation of the device and method can refer to each other. Repeat No further details will be given.

Referring to Figure 11, Figure 11 is a third schematic structural diagram of a network registration device provided by an embodiment of the present disclosure. An embodiment of the present disclosure provides a network registration device that can be applied to access and mobility management functional entities corresponding to centralized nodes, including :

The third receiving unit 1110 is configured to receive the first registration request message sent by the first requesting entity for requesting the target network node;

The third sending unit 1120 is configured to send a response message for determining the target network node to the first requesting entity;

In some embodiments, the device further includes:

The third sending unit 1120 includes:

In some embodiments, the device further includes:

Referring to Figure 12, Figure 12 is a fourth structural schematic diagram of a network registration device provided by an embodiment of the present disclosure. An embodiment of the present disclosure provides a network registration device that can be applied to access and mobility management functional entities corresponding to distributed nodes. include:

The sixth receiving unit 1210 is configured to receive a first registration request message sent by the access network entity to request the target network node, where the first registration request message originates from the terminal;

The fifth determination unit 1220 is configured to determine whether to receive the terminal based on the first registration request message;

The sixth sending unit 1230 is configured to send a first response message for determining a target network node to the access network entity based on whether to receive the terminal.

In some embodiments, when it is determined not to receive the terminal based on the first registration request message, the sixth sending unit 1230 includes:

In some embodiments, when the first registration request message carries the registration information of the terminal and the access inquiry indication information, the fifth determining unit 1220 includes:

The sixth sending unit 1230 includes:

In some embodiments, the device further includes:

In some embodiments, the sixth determining unit includes:

a seventh sending subunit, configured to send, to an access and mobility management function entity corresponding to the centralized node, a create context request message for requesting a current list of accessible network nodes corresponding to the terminal;

The third receiving subunit is configured to receive the current accessible network node list sent by the access and mobility management function entity corresponding to the centralized node.

It should be noted that the division of units in the embodiment of the present disclosure is schematic and is only a logical function division. In actual implementation, there may be other division methods. In addition, each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above integrated units can be implemented in the form of hardware or software functional units.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.

Figure 13 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure. As shown in Figure 13, the terminal includes a memory 1320, a transceiver 1300 and a processor 1310; the processor 1310 and the memory 1320 can also be physically arranged separately.

The memory 1320 is used to store computer programs; the transceiver 1300 is used to send and receive data under the control of the processor 1310; the processor 1310 is used to call the computer program stored in the memory 1320. According to the obtained executable instructions, perform operations corresponding to any of the network registration methods applied to terminals provided by the embodiments of the present disclosure, for example:

Specifically, the transceiver 1300 is used to receive and transmit data under the control of the processor 1310.

In FIG. 13 , the bus interface 1340 may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1310 and various circuits of the memory represented by the memory 1320 are connected together. The bus interface 1340 may also connect various other circuits together, such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be further described herein. The bus interface provides the interface. The transceiver 1300 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, etc. Transmission medium. For different terminals, a user interface 1330 may also be included. The user interface 1330 may also be an interface capable of externally connecting internally required devices. The connected devices include but are not limited to keypads, monitors, speakers, microphones, joysticks, etc.

The processor 1310 is responsible for managing the bus architecture and general processing, and the memory 1320 can store data used by the processor 1310 when performing operations.

Optionally, the processor 1310 may be a central processing unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device ( Complex Programmable Logic Device (CPLD), the processor can also adopt a multi-core architecture.

In some embodiments, the operations further include:

It should be noted here that the above-mentioned terminal provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned network registration method embodiment, and can achieve the same technical effect. The methods in this embodiment will no longer be implemented here. The same parts and beneficial effects will be described in detail.

Figure 14 is a schematic structural diagram of an access network entity provided by an embodiment of the present disclosure. As shown in Figure 14, the access network entity includes a memory 1420, a transceiver 1400, and a processor 1410.

Among them, the memory 1420 is used to store computer programs; the transceiver 1400 is used to send and receive data under the control of the processor 1410; the processor 1410 is used to read the computer program in the memory 1420 and perform the following operations:

Receive the first registration request message sent by the terminal;

Specifically, the transceiver 1400 is used to receive and transmit data under the control of the processor 1410.

In FIG. 14 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1410 and various circuits of memory represented by memory 1420 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface 1430 provides an interface. The transceiver 1400 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium includes a wireless channel, a wired channel, an optical cable, and other transmission media. The processor 1410 is responsible for managing the bus architecture and general processing, and the memory 1420 may store data used by the processor 1410 when performing operations.

The processor 1410 may be a central processing unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field- Programmable Gate Array (FPGA) or Complex Programmable Logic Device (CPLD), the processor can also adopt a multi-core architecture.

The target network node is determined based on the first response message.

It should be noted here that the above-mentioned access network entity provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned network registration method embodiment, and can achieve the same technical effect. No further explanation will be given here. The same parts and beneficial effects as those in the method embodiment will be described in detail.

Figure 15 is a schematic structural diagram of the access and mobility management functional entity corresponding to the centralized node provided by the embodiment of the present disclosure. As shown in Figure 15, the access and mobility management functional entity corresponding to the centralized node includes a memory 1520, a transceiver Machine 1500, processor 1510.

Among them, the memory 1520 is used to store computer programs; the transceiver 1500 is used to send and receive data under the control of the processor 1510; the processor 1510 is used to read the computer program in the memory 1520 and perform the following operations:

The first requesting entity is an access network entity or an access and mobility management function entity corresponding to a distributed node, and the first registration request message originates from a terminal.

Specifically, the transceiver 1500 is used to receive and send data under the control of the processor 1510 .

In FIG. 15 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1510 and various circuits of the memory represented by memory 1520 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein. Bus interface 1530 provides the interface. The transceiver 1500 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media. processor 1510 is responsible for managing the bus architecture and general processing, and memory 1520 can store data used by processor 1510 when performing operations.

Processor 1510 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

In some embodiments, when the first requesting entity is an access network entity and the first registration request message carries registration information and access query indication information of the terminal, the operation further includes :

In some embodiments, the operations further include:

Send the current list of accessible network nodes to the terminal.

It should be noted here that the access and mobility management functional entities corresponding to the above-mentioned centralized nodes provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned network registration method embodiments, and can achieve the same technical effects. The parts and beneficial effects in this embodiment that are the same as those in the method embodiment will not be described in detail here.

Figure 16 is a schematic structural diagram of an access and mobility management functional entity corresponding to a distributed node provided by an embodiment of the present disclosure. As shown in Figure 16, the access and mobility management functional entity corresponding to a distributed node includes a memory 1620 , transceiver 1600, processor 1610.

Among them, the memory 1620 is used to store computer programs; the transceiver 1600 is used to send and receive data under the control of the processor 1610; the processor 1610 is used to read the computer program in the memory 1620 and perform the following operations:

receiving a first registration request message sent by an access network entity for requesting a target network node, wherein the first registration request message originates from a terminal;

Specifically, the transceiver 1600 is used to receive and transmit data under the control of the processor 1610.

In FIG. 16 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1610 and various circuits of the memory represented by memory 1620 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein. Bus interface 1630 provides the interface. The transceiver 1600 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media. processor 1610 is responsible for managing the bus architecture and general processing, and memory 1620 can store data used by processor 1610 when performing operations.

The processor 1610 may be a central processing unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device). ,CPLD), the processor can also adopt a multi-core architecture.

In some embodiments, the operations further include:

Send the current list of accessible network nodes to the terminal.

It should be noted here that the access and mobility management functional entities corresponding to the above-mentioned distributed nodes provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned network registration method embodiments, and can achieve the same technical effects. , the parts and beneficial effects in this embodiment that are the same as those in the method embodiment will not be described in detail here.

On the other hand, embodiments of the present disclosure also provide a processor-readable storage medium. The processor-readable storage medium stores a computer program. The computer program is used to cause the processor to execute the methods provided by the above embodiments. Network registration methods applied to terminals, including:

On the other hand, embodiments of the present disclosure also provide a processor-readable storage medium. The processor-readable storage medium stores a computer program. The computer program is used to cause the processor to execute the methods provided by the above embodiments. Network registration methods applied to access network entities, including:

Receive the first registration request message sent by the terminal;

Determining, based on pre-configured access and mobility management function information, a target access and mobility management function entity corresponding to the target network node;

On the other hand, an embodiment of the present disclosure further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, wherein the computer program is used to cause the processor to execute the above The network registration method provided in each embodiment and applied to the access and mobility management function entity corresponding to the centralized node includes:

On the other hand, embodiments of the present disclosure also provide a processor-readable storage medium. The processor-readable storage medium stores a computer program. The computer program is used to cause the processor to execute the methods provided by the above embodiments. The network registration method applied to the access and mobility management functional entities corresponding to distributed nodes includes:

The processor-readable storage medium may be any available media or data storage device that the processor can access, including but not limited to magnetic storage (such as floppy disks, hard disks, tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor memories (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)), etc.

Those skilled in the art will appreciate that embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment that combines software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) embodying computer-usable program code therein.

The disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each process and/or block in the flowchart illustrations and/or block diagrams, and the functions in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. A combination of processes and/or boxes. These computer-executable instructions may be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a process or processes of a flowchart and/or a block or blocks of a block diagram.

These processor-executable instructions may also be stored in a processor-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the generation of instructions stored in the processor-readable memory includes the manufacture of the instruction means product, the instruction device implements the function specified in one process or multiple processes in the flow chart and/or one block or multiple blocks in the block diagram.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby causing the computer or other programmable device to The instructions that are executed provide steps for implementing the functions specified in a process or processes of the flowchart diagrams and/or a block or blocks of the block diagrams.

Obviously, those skilled in the art can make various changes and modifications to the present disclosure without departing from the spirit and scope of the disclosure. In this way, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and equivalent technologies, the present disclosure is also intended to include these modifications and variations.

Claims

A network registration method, applied to terminals, including:

A first registration request message is sent to the access network entity, where the first registration request message is used to determine a target network node and a target access and mobility management function entity corresponding to the target network node.
The network registration method according to claim 1, wherein the first registration request message carries a target network node identifier and/or terminal information used to determine the target network node.
The network registration method according to claim 2, wherein the target network node identification is determined based on a preconfigured list of accessible network nodes.
The network registration method according to any one of claims 1-3, wherein the method further includes:

Receive the current list of accessible network nodes sent by the target access and mobility management function entity.
A network registration method, applied to access network entities, including:

Receive the first registration request message sent by the terminal;

Based on the first registration request message, determine a target network node;

Based on the preconfigured access and mobility management function information, determine the target access and mobility management function entity corresponding to the target network node;

Send a second registration request message to the target access and mobility management function entity.
The network registration method according to claim 5, wherein the first registration request message carries a target network node identifier and/or terminal information used to determine the target network node.
The network registration method according to any one of claims 5 or 6, wherein when the first registration request message does not carry a target network node identification and/or terminal information used to determine the target network node, Determining the target network node based on the first registration request message includes:

Determine a first network node based on the first registration request message and the first local policy;

Send the first registration request message to the access and mobility management function entity corresponding to the first network node;

Receive a first response message sent by the access and mobility management function entity corresponding to the first network node;

The target network node is determined based on the first response message.
The network registration method according to claim 7, wherein, when the first network node is a centralized node, the first response message includes a target network node identifier or a candidate for determining the target network node. List of network nodes.
The network registration method according to claim 7, wherein when the first network node is a distributed node, determining the target network node based on the first response message includes any of the following:

Determine that the distributed node is the target network node based on the first response message;

Determine the target network node based on the first response message carrying the target network node identifier;

Determine the target network node based on the first response message carrying a candidate network node list;

Wherein, the target network node identification and the candidate network node list are obtained by the distributed node by requesting from the centralized node.
The network registration method according to claim 7, wherein, in the case where the first network node is a plurality of network nodes, the first registration request message carries registration information and access query indication information of the terminal;

The first response message includes reception information or rejection information, and the first response message is determined by the access and mobility management functional entity corresponding to each network node based on the registration information and the access query indication information. of;

Determining the target network node based on the first response message includes:

In the network node that sends the reception information, the target network node is determined based on a second local policy.
A network registration method, applied to the access and mobility management functional entities corresponding to centralized nodes, including:

receiving a first registration request message sent by a first requesting entity for requesting a target network node;

Send a response message for determining the target network node to the first requesting entity;

Wherein, the first requesting entity is an access network entity or an access and mobility management function entity corresponding to a distributed node, and the first registration request message originates from a terminal.
The network registration method according to claim 11, wherein sending a response message for determining a target network node to the first requesting entity further includes:

Determine a target network node identifier or a candidate network node list for determining the target network node based on the first registration request message;

The sending a response message for determining the target network node to the first requesting entity includes:

A response message carrying the target network node identifier or a candidate network node list used to determine the target network node is sent to the first requesting entity.
The network registration method according to claim 11, wherein when the first requesting entity is an access network entity, and the first registration request message carries registration information of the terminal and access query indication information Below, the method also includes:

Determine whether to receive the terminal based on the registration information and the access query indication information;

The sending a response message for determining the target network node to the first requesting entity includes:

Based on whether the terminal is received, a first response message carrying reception information or rejection information is sent to the first requesting entity.
The network registration method according to any one of claims 11-13, wherein the method further includes:

Receive a creation context request message sent by the target access and mobility management function entity for requesting the current accessible network node list corresponding to the terminal;

Send the current list of accessible network nodes to the target access and mobility management function entity.
The network registration method according to any one of claims 11-13, wherein the method further includes:

Receive a second registration request message sent by the access network entity for terminal registration;

Determine, based on the second registration request message, a current list of accessible network nodes corresponding to the terminal;

Send the current list of accessible network nodes to the terminal.
A network registration method, applied to the access and mobility management functional entities corresponding to distributed nodes, including:

Receive a first registration request message sent by the access network entity for requesting the target network node, where the first registration request message originates from the terminal;

Determine whether to receive the terminal based on the first registration request message;

Based on whether the terminal is received, a first response message for determining a target network node is sent to the access network entity.
The network registration method according to claim 16, wherein when it is determined not to receive the terminal based on the first registration request message, the method for determining whether to receive the terminal is sent to the access network entity based on whether the terminal is received. The first response message of the target network node includes:

Sending the first registration request message to an access and mobility management function entity corresponding to the centralized node;

Receive a second response message carrying a target network node identifier or a candidate network node list for determining the target network node sent by the access and mobility management function entity corresponding to the centralized node;

Send the first response message carrying the target network node identifier or the candidate network node list to the access network entity.
The network registration method according to claim 16, wherein, in the case where the first registration request message carries registration information and access query indication information of the terminal, the determining whether to receive the terminal based on the first registration request message comprises:

Determine whether to receive the terminal based on the registration information and the access query indication information;

The step of sending a first response message for determining a target network node to the access network entity based on whether the terminal is received includes:

Based on whether the terminal is received, the first response message carrying reception information or rejection information is sent to the access network entity.
The network registration method according to any one of claims 16-18, wherein the method further includes:

receiving a second registration request message for terminal registration sent by the access network entity;

Based on the second registration request message, determine the current accessible network node list corresponding to the terminal;

Send the current list of accessible network nodes to the terminal.
The network registration method according to claim 19, wherein the determining, based on the second registration request message, a current list of accessible network nodes corresponding to the terminal comprises:

Send a creation context request message for requesting the current accessible network node list corresponding to the terminal to the access and mobility management functional entity corresponding to the centralized node;

Receive the current list of accessible network nodes sent by the access and mobility management functional entity corresponding to the centralized node.
A terminal including memory, transceiver and processor:

Memory, used to store computer programs; transceiver, used to send and receive data under the control of the processor; processor, used to read the computer program in the memory and perform the following operations:

A first registration request message is sent to the access network entity, where the first registration request message is used to determine a target network node and a target access and mobility management function entity corresponding to the target network node.
The terminal according to claim 21, wherein the first registration request message carries a target network node identifier and/or terminal information used to determine the target network node.
The terminal according to claim 22, wherein the target network node identification is determined based on a preconfigured list of accessible network nodes.
The terminal according to any one of claims 21 or 23, wherein the operations further include:

Receive the current list of accessible network nodes sent by the target access and mobility management function entity.
An access network entity, including memory, transceivers and processors:

memory for storing computer programs; a transceiver for receiving data under the control of the processor Send data; processor to read the computer program in the memory and perform the following operations:

Receive the first registration request message sent by the terminal;

Based on the first registration request message, determine a target network node;

Based on the preconfigured access and mobility management function information, determine the target access and mobility management function entity corresponding to the target network node;

Send a second registration request message to the target access and mobility management function entity.
The access network entity according to claim 25, wherein the first registration request message carries a target network node identifier and/or terminal information used to determine the target network node.
The access network entity according to any one of claims 25 or 26, wherein when the first registration request message does not carry a target network node identifier and/or terminal information used to determine the target network node , determining the target network node based on the first registration request message includes:

Determining a first network node based on the first registration request message and a first local policy;

Send the first registration request message to the access and mobility management function entity corresponding to the first network node;

Receive a first response message sent by the access and mobility management function entity corresponding to the first network node;

The target network node is determined based on the first response message.
The access network entity according to claim 27, wherein, when the first network node is a centralized node, the first response message includes a target network node identifier or a target network node used to determine the target network node. List of candidate network nodes.
The access network entity according to claim 27, wherein when the first network node is a distributed node, determining the target network node based on the first response message includes any of the following: :

Determine that the distributed node is the target network node based on the first response message;

Determining the target network node based on the first response message carrying the target network node identifier;

Determine the target network based on the first response message carrying a candidate network node list node;

Wherein, the target network node identification and the candidate network node list are obtained by the distributed node by requesting from the centralized node.
The access network entity according to claim 27, wherein when the first network node is multiple network nodes, the first registration request message carries the registration information of the terminal and an access query indication. information;

The first response message includes reception information or rejection information, and the first response message is determined by the access and mobility management functional entity corresponding to each network node based on the registration information and the access query indication information. of;

Determining the target network node based on the first response message includes:

In the network node that sends the reception information, the target network node is determined based on a second local policy.
An access and mobility management functional entity corresponding to a centralized node, including memory, transceiver and processor:

Memory, used to store computer programs; transceiver, used to send and receive data under the control of the processor; processor, used to read the computer program in the memory and perform the following operations:

Receive a first registration request message sent by the first requesting entity for requesting the target network node;

Send a response message for determining the target network node to the first requesting entity;

Wherein, the first requesting entity is an access network entity or an access and mobility management function entity corresponding to a distributed node, and the first registration request message originates from a terminal.
The access and mobility management function entity corresponding to the centralized node according to claim 31, wherein the sending a response message for determining the target network node to the first requesting entity further includes:

Determine a target network node identifier or a candidate network node list for determining the target network node based on the first registration request message;

The sending a response message for determining the target network node to the first requesting entity includes:

Send to the first requesting entity carrying the target network node identifier or used to determine the Response message for the candidate network node list of the target network node.
The access and mobility management function entity corresponding to the centralized node according to claim 31, wherein the first requesting entity is an access network entity, and the first registration request message carries the registration of the terminal. In the case of information and access inquiry indication information, the operation also includes:

Determining whether to receive the terminal based on the registration information and the access query indication information;

The sending a response message for determining the target network node to the first requesting entity includes:

Based on whether the terminal is received, a first response message carrying reception information or rejection information is sent to the first requesting entity.
The access and mobility management function entity corresponding to the centralized node according to any one of claims 31 to 33, wherein the operation further comprises:

Receive a creation context request message sent by the target access and mobility management function entity for requesting the current accessible network node list corresponding to the terminal;

Send the current list of accessible network nodes to the target access and mobility management function entity.
The access and mobility management functional entity corresponding to the centralized node according to any one of claims 31-33, wherein the operation further includes:

Receive a second registration request message sent by the access network entity for terminal registration;

Based on the second registration request message, determine the current accessible network node list corresponding to the terminal;

Send the current list of accessible network nodes to the terminal.
An access and mobility management functional entity corresponding to a distributed node, including memory, transceiver and processor:

Memory, used to store computer programs; transceiver, used to send and receive data under the control of the processor; processor, used to read the computer program in the memory and perform the following operations:

Receive a first registration request message sent by the access network entity for requesting the target network node, where the first registration request message originates from the terminal;

Determine whether to receive the terminal based on the first registration request message;

Based on whether the terminal is received, a first response message for determining a target network node is sent to the access network entity.
The access and mobility management functional entity corresponding to the distributed node according to claim 36, wherein, in the case where it is determined not to receive the terminal based on the first registration request message, based on whether the terminal is received, The access network entity sends a first response message used to determine the target network node, including:

Send the first registration request message to the access and mobility management function entity corresponding to the centralized node;

Receive a second response message carrying a target network node identifier or a candidate network node list for determining the target network node sent by the access and mobility management function entity corresponding to the centralized node;

Send the first response message carrying the target network node identifier or the candidate network node list to the access network entity.
The access and mobility management functional entity corresponding to the distributed node according to claim 36, wherein in the case where the first registration request message carries the registration information of the terminal and the access query indication information, the based on The first registration request message to determine whether to receive the terminal includes:

Determine whether to receive the terminal based on the registration information and the access query indication information;

The step of sending a first response message for determining a target network node to the access network entity based on whether the terminal is received includes:

Based on whether the terminal is received, the first response message carrying reception information or rejection information is sent to the access network entity.
The access and mobility management functional entity corresponding to the distributed node according to any one of claims 36 to 88, wherein the operation further includes:

Receive a second registration request message sent by the access network entity for terminal registration;

Based on the second registration request message, determine the current accessible network node list corresponding to the terminal;

Send the current list of accessible network nodes to the terminal.
Access and mobility management functions corresponding to the distributed node according to claim 39 Entity, wherein the determining the current list of accessible network nodes corresponding to the terminal based on the second registration request message includes:

Send a creation context request message for requesting the current accessible network node list corresponding to the terminal to the access and mobility management functional entity corresponding to the centralized node;

Receive the current accessible network node list sent by an access and mobility management function entity corresponding to the centralized node.
A network registration device, applied to terminals, including:

A first sending unit configured to send a first registration request message to an access network entity, where the first registration request message is used to determine a target network node and the target access and mobility management function entity corresponding to the target network node. .
The network registration apparatus according to claim 41, wherein the first registration request message carries a target network node identifier and/or terminal information used to determine the target network node.
The network registration device according to claim 42, wherein the target network node identification is determined based on a preconfigured list of accessible network nodes.
The network registration device according to any one of claims 41-43, wherein the device further includes:

The first receiving unit is configured to receive the current accessible network node list sent by the target access and mobility management function entity.
A network registration device, applied to access network entities, including:

The second receiving unit is configured to receive the first registration request message sent by the terminal;

A first determining unit configured to determine a target network node based on the first registration request message;

The first determining unit is also configured to determine the target access and mobility management function entity corresponding to the target network node based on the preconfigured access and mobility management function information;

The second sending unit is configured to send a second registration request message to the target access and mobility management function entity.
The network registration apparatus according to claim 45, wherein the first registration request message carries a target network node identifier and/or terminal information used to determine the target network node.
The network registration apparatus according to claim 45 or 46, wherein in the case that the first registration request message does not carry a target network node identification and/or terminal information used to determine the target network node, the first Identified units include:

A first determination subunit configured to determine the first network node based on the first registration request message and the first local policy;

A first sending subunit, configured to send the first registration request message to the access and mobility management function entity corresponding to the first network node;

The first receiving subunit is configured to receive the first response message sent by the access and mobility management function entity corresponding to the first network node;

The second determination subunit is used to determine the target network node based on the first response message.
The network registration device according to claim 47, wherein when the first network node is a centralized node, the first response message includes a target network node identifier or a candidate network used to determine the target network node. Node list.
The network registration device according to claim 47, wherein when the first network node is a distributed node, the second determining subunit includes any of the following:

A first determination module, configured to determine that the distributed node is the target network node based on the first response message;

A second determination module, configured to determine the target network node based on the first response message carrying the target network node identifier;

A third determination module, configured to determine the target network node based on the first response message carrying a candidate network node list;

Wherein, the target network node identification and the candidate network node list are obtained by the distributed node by requesting from the centralized node.
The network registration device according to claim 47, wherein, when the first network node is a plurality of network nodes, the first registration request message carries the registration information and access query indication information of the terminal;

The first response message includes reception information or rejection information, and the first response message is determined by the access and mobility management functional entity corresponding to each network node based on the registration information and the access query indication information. of;

The second determination subunit includes:

The fourth determination module is configured to determine the target network node based on the second local policy among the network nodes that send the received information.
A network registration device, applied to the access and mobility management functional entities corresponding to centralized nodes, including:

A third receiving unit configured to receive a first registration request message sent by the first requesting entity for requesting the target network node;

A third sending unit configured to send a response message for determining the target network node to the first requesting entity;

Wherein, the first requesting entity is an access network entity or an access and mobility management function entity corresponding to a distributed node, and the first registration request message originates from a terminal.
The network registration device according to claim 51, wherein the device further includes:

a second determination unit, configured to determine a target network node identifier based on the first registration request message or to determine a candidate network node list of the target network node;

The third sending unit includes:

The second sending subunit is configured to send a response message carrying the target network node identifier or a candidate network node list for determining the target network node to the first requesting entity.
The network registration device according to claim 51, wherein when the first requesting entity is an access network entity, and the first registration request message carries registration information of the terminal and access query indication information , the device also includes:

A third determination unit determines whether to receive the terminal based on the registration information and the access query indication information;

The third sending unit includes:

The third sending subunit is configured to send a first response message carrying reception information or rejection information to the first requesting entity based on whether to receive the terminal.
The network registration device according to any one of claims 51-53, wherein the device further includes:

The fourth receiving unit is configured to receive a creation context request message sent by the target access and mobility management function entity for requesting the current accessible network node list corresponding to the terminal;

The fourth sending unit is configured to send the current accessible network node list to the target access and mobility management functional entity.
The network registration device according to any one of claims 51-53, wherein the device further includes:

A fifth receiving unit configured to receive a second registration request message for terminal registration sent by the access network entity;

A fourth determination unit configured to determine the current accessible network node list corresponding to the terminal based on the second registration request message;

The fifth sending unit is configured to send the current accessible network node list to the terminal.
A network registration device, applied to the access and mobility management functional entities corresponding to distributed nodes, including:

The sixth receiving unit is configured to receive a first registration request message sent by the access network entity to request the target network node, where the first registration request message originates from the terminal;

A fifth determining unit, configured to determine whether to receive the terminal based on the first registration request message;

A sixth sending unit configured to send a first response message for determining a target network node to the access network entity based on whether to receive the terminal.
The network registration device according to claim 56, wherein, when it is determined not to receive the terminal based on the first registration request message, the sixth sending unit includes:

The fourth sending subunit is used to send the first registration request message to the access and mobility management function entity corresponding to the centralized node;

A second receiving subunit is configured to receive a second response message sent by an access and mobility management function entity corresponding to the centralized node and carrying a target network node identifier or a candidate network node list for determining the target network node;

The fifth sending subunit is configured to send the first response message carrying the target network node identifier or the candidate network node list to the access network entity.
The network registration device according to claim 56, wherein when the first registration request message carries registration information of the terminal and access inquiry indication information, the fifth determination unit includes:

A third determination subunit, configured to determine whether to receive the terminal based on the registration information and the access query indication information;

The sixth sending unit includes:

A sixth sending subunit, configured to send the first response message carrying reception information or rejection information to the access network entity based on whether to receive the terminal.
The network registration device according to any one of claims 56-58, wherein the device further includes:

A seventh receiving unit, configured to receive a second registration request message for terminal registration sent by the access network entity;

A sixth determination unit, configured to determine the current accessible network node list corresponding to the terminal based on the second registration request message;

A seventh sending unit is configured to send the current accessible network node list to the terminal.
The network registration device according to claim 59, wherein the sixth determining unit includes:

A seventh sending subunit, configured to send a creation context request message for requesting the current accessible network node list corresponding to the terminal to the access and mobility management functional entity corresponding to the centralized node;

The third receiving subunit is configured to receive the current list of accessible network nodes sent by the access and mobility management functional entity corresponding to the centralized node.
A processor-readable storage medium that stores computer Program, the computer program is used to cause the processor to execute the network registration method according to any one of claims 1-20.