CN118828442A - Business establishment method, device, equipment and medium - Google Patents

Abstract

The present invention provides a service establishment method, device, equipment and medium. The method of the present invention comprises: receiving a service fast establishment request message sent by a terminal, the service fast establishment request message is used to request simultaneous execution of registration and PDU session establishment; based on the service fast establishment request message, obtaining the AUSF address and the UDM address, the AUSF address is used for security authentication in the registration process and security authentication in the PDU session establishment process; based on the UDM address, determining the selected first AMF and the first session management function SMF; executing the registration process according to the first AMF, and executing the PDU session establishment process according to the first SMF. Through the above-mentioned processing, the registration process and the PDU session establishment process can be executed synchronously in the present invention, thereby realizing the rapid establishment of the service channel, avoiding unnecessary AMF forwarding steps, and reducing signaling overhead.

Description

Business establishment method, device, equipment and medium

Technical Field

The present invention relates to the field of communication technology, and in particular to a service establishment method, device, equipment and medium.

Background Art

Referring to Figure 1A and Figure 1B, in the traditional network architecture, the control plane connection between the Radio Access Network (RAN) and the Core Network (CN) is only N2, and all control plane Non-Access Stratum (NAS) messages sent by User Equipment (UE) need to be forwarded by the Access and Mobility Management Function (AMF), and the Protocol Data Unit (PDU) session establishment process is after the registration process. This will lead to low service establishment efficiency and high signaling overhead.

Summary of the invention

The object of the present invention is to provide a service establishment method, device, equipment and medium to solve the problems of low efficiency and large signaling overhead in existing service establishment.

In order to achieve the above object, in a first aspect, the present invention provides a service establishment method, which is executed by a first base station and includes:

A service fast establishment request message sent by a receiving terminal is used to request simultaneous execution of registration and protocol data unit (PDU) session establishment;

Based on the service rapid establishment request message, obtain the authentication service function AUSF address and the unified data management UDM address, the AUSF address is used for security authentication in the registration process and security authentication in the PDU session establishment process;

Based on the UDM address, determine the selected first access and mobility management function AMF and the first session management function SMF;

Execute the registration process according to the first AMF, and execute the PDU session establishment process according to the first SMF.

The service fast establishment request message includes a first Hypertext Transfer Protocol HTTP request message and a second HTTP request message, wherein the first HTTP request message is used to request registration, and the second HTTP request message is used to request protocol data unit PDU session establishment.

The service fast establishment request message includes at least one of the following:

A terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, and the second base station is an original base station providing services for the terminal;

Sign the hidden logo SUCI;

The second AMF ID, the second AMF is the original AMF that provides services to the terminal.

The process of quickly establishing a request message based on the service to obtain an authentication service function AUSF address and a unified data management UDM address includes:

Obtaining a first terminal context through a radio access network RAN according to the UE ID;

Obtain the AUSF address and UDM address from the first terminal context.

The process of quickly establishing a request message based on the service to obtain an authentication service function AUSF address and a unified data management UDM address includes:

performing AMF selection based on local configuration, and sending a third request message for requesting to obtain the AUSF address and the UDM address to the selected first AMF, where the third request message includes the SUCI and the second AMF ID;

Receive the AUSF address and the UDM address sent by the first AMF, wherein the AUSF address and the UDM address are obtained by the first AMF through the second AMF from the second terminal context through the second AMF, and then through the network storage function NRF based on the SUPI.

The step of determining the selected first access and mobility management function AMF and the first session management function SMF based on the UDM address includes:

Send a fourth request message for requesting first subscription data and second subscription data to the UDM corresponding to the UDM address, where the first subscription data is the subscription data selected by the AMF, the second subscription data is the subscription data selected by the SMF, and the fourth request message includes the UE ID or the SUCI;

Perform AMF selection based on the first subscription data returned by the UDM to determine the selected first AMF;

Perform SMF selection based on the second subscription data returned by the UDM to determine the selected first SMF.

The performing of the registration process according to the first AMF includes:

Send a registration request message to the first AMF, the registration request message including: SUCI, a first service fast establishment indication, the AUSF address, the UDM address and the selected first SMF address, the first service fast establishment indication is used to instruct the first AMF to perform the registration process and the PDU session establishment process in parallel;

Receive the first indication information sent by the first AMF, where the first indication information is used to indicate that the registration is complete, and the registration request message is used by the first AMF to obtain the access and mobility AM policy.

The executing of the PDU session establishment process according to the first SMF includes:

Send a PDU session establishment request message to the first SMF, where the PDU session establishment request message includes SUCI, a second service fast establishment indication, the AUSF address, the UDM address and the selected first AMF address, and the second service fast establishment indication is used to instruct the first SMF that the PDU session establishment process and the registration process are executed in parallel;

Receive second indication information sent by the first SMF, where the second indication information is used to indicate that the PDU session establishment is complete, and the PDU session establishment request message is used by the first SMF to establish an N4 session with a user plane function UPF selected by the first SMF;

Send a PDU session establishment completion confirmation message to the first SMF.

Before receiving the service fast establishment request message sent by the terminal, the method further includes:

Sending third indication information to the terminal, where the third indication information is used to indicate whether the first base station itself supports a capability of quickly establishing a service.

The third indication information is carried in the system information, and the system information also includes a list of services that the network allows to use the fast service establishment method.

Before receiving the service fast establishment request message sent by the terminal, the method further includes:

receiving fourth indication information sent by the terminal, where the fourth indication information is used to instruct the terminal to use a fast service establishment mode; or,

The fifth indication information sent by the terminal is received, where the fifth indication information is used to indicate a terminal preference, and the terminal preference includes at least one of the following:

Whether the terminal prefers to use a fast service establishment mode;

Terminal services that are quickly established using services;

Use the restriction information established quickly by the business.

The fourth indication information is carried in a radio resource control RRC establishment request message; and the fifth indication information is carried in terminal auxiliary information.

The service fast establishment request message is carried in the RRC establishment completion message.

In a second aspect, the present invention also provides a service establishment method, which is performed by a first AMF, including:

Receiving a registration request message sent by the first base station, the registration request message including: a first service fast establishment indication and registration parameter information;

Based on the registration request message, executing a registration process;

Among them, the first service fast establishment indication is used to instruct the first AMF to execute the registration process and PDU session establishment process in parallel; the registration parameter information is obtained by the first base station based on the service fast establishment request message sent by the terminal, and the service fast establishment request message is used to request the simultaneous execution of registration and protocol data unit PDU session establishment.

Among them, the registration parameter information includes: the contract hidden identifier SUCI, the authentication service function AUSF address, the unified data management UDM address and the first SMF address selected by the first base station.

The service fast establishment request message includes a first Hypertext Transfer Protocol HTTP request message and a second HTTP request message, wherein the first HTTP request message is used to request registration, and the second HTTP request message is used to request protocol data unit PDU session establishment.

The service fast establishment request message includes at least one of the following:

A terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, and the second base station is an original base station providing services for the terminal;

SUCI;

The second access and mobility management function AMF ID, the second AMF is the original AMF that provides services for the terminal.

Before receiving the registration request message sent by the first base station, the method further includes:

receiving a third request message sent by the first base station for requesting to obtain the AUSF address and the UDM address, where the third request message includes the SUCI and the second AMF ID, where the second AMF is the original AMF providing services for the terminal;

Obtaining, through the second AMF, a second terminal context;

Acquire a subscription permanent identity SUPI of the terminal from the second terminal context;

According to SUPI, the AUSF address and the UDM address are obtained through a network storage function NRF; and the AUSF address and the UDM address are sent to the first base station.

The performing of the registration process based on the registration request message includes:

Obtain the mobility management context through the second AMF;

According to the AUSF address, the security authentication related to registration is performed between the AUSF and the terminal; and the security authentication related to registration is performed between the terminal;

According to the UDM address, the first AMF is registered as the AMF providing services for the terminal through the UDM, and the subscription data related to access and mobility AM is obtained;

Select the policy control function PCF according to the contract data related to AM, and obtain the AM policy through the selected PCF;

Send first indication information to the first base station, where the first indication information is used to indicate that registration is completed.

Wherein, the method further comprises:

A first notification message for notifying the completion of registration is sent to the first SMF through the first SMF address, where the first notification message includes a terminal identifier assigned by the first AMF to the terminal.

Wherein, the method further comprises:

Receive a second notification message sent by the first SMF for notifying that the PDU session establishment is complete, where the second notification message includes a terminal identifier allocated by the first SMF to the terminal;

The terminal identifier locally allocated to the terminal is associated with the terminal identifier allocated to the terminal by the first SMF.

In a third aspect, the present invention further provides a service establishment method, which is executed by a first SMF, comprising:

Receiving a PDU session establishment request message sent by the first base station, where the PDU session establishment request message includes a second service fast establishment indication and session establishment parameter information;

Based on the PDU session establishment request message, execute the PDU session establishment process;

Among them, the second service fast establishment indication is used to instruct the first SMF to execute the PDU session establishment process and registration process in parallel; the session establishment parameter information is obtained by the first base station based on the service fast establishment request message sent by the terminal, and the service fast establishment request message is used to request the simultaneous execution of registration and protocol data unit PDU session establishment.

Among them, the session establishment parameter information includes: the contract hidden identifier SUCI, the authentication service function AUSF address, the unified data management UDM address and the first AMF address selected by the first base station.

The service fast establishment request message includes a first Hypertext Transfer Protocol HTTP request message and a second HTTP request message, wherein the first HTTP request message is used to request registration, and the second HTTP request message is used to request protocol data unit PDU session establishment.

The service fast establishment request message includes at least one of the following:

A terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, and the second base station is an original base station providing services for the terminal;

SUCI;

The second access and mobility management function AMF ID, the second AMF is the original AMF that provides services for the terminal.

The executing of the PDU session establishment process based on the PDU session establishment request message includes:

Obtain the PDU session context through the second SMF, where the second SMF is the original SMF providing services for the terminal;

According to the AUSF address, the security authentication related to the PDU session is performed between the AUSF and the terminal; and the security authentication related to the PDU session is performed between the terminal;

According to the UDM address, the first SMF is registered as the SMF providing services for the terminal through the UDM, and the subscription data related to the session management SM is obtained;

Select the policy control function PCF according to the SM-related subscription data, and obtain the policy control and charging PCC policy through the selected PCF;

Select the user plane function UPF according to the PCC policy and establish an N4 session with the selected UPF.

Wherein, the method further comprises:

Sending second indication information to the first base station, where the second indication information is used to indicate that the PDU session establishment is complete;

Receive a PDU session establishment completion confirmation message sent by the first base station.

Wherein, the method further comprises:

Receiving a first notification message sent by the first AMF for notifying the completion of registration, where the first notification message includes a terminal identifier allocated by the first AMF to the terminal;

Associate the terminal identifier locally allocated to the terminal with the terminal identifier allocated to the terminal by the first AMF.

Wherein, the method further comprises:

A second notification message for notifying that the PDU session establishment is completed is sent to the first AMF through the first AMF address, and the second notification message includes the terminal identifier assigned by the first SMF to the terminal.

In a fourth aspect, the present invention further provides a service establishment device, which is executed by a first base station and includes:

A first receiving module, used to receive a service fast establishment request message sent by a terminal, wherein the service fast establishment request message is used to request simultaneous execution of registration and protocol data unit PDU session establishment;

A first acquisition module is used to quickly establish a request message based on the service, obtain an authentication service function AUSF address and a unified data management UDM address, the AUSF address is used for security authentication in a registration process and a security authentication in a PDU session establishment process;

A first processing module, configured to determine a selected first access and mobility management function AMF and a first session management function SMF based on the UDM address;

The service establishment module is used to execute the registration process according to the first AMF and to execute the PDU session establishment process according to the first SMF.

In a fifth aspect, the present invention further provides a service establishment device, which is executed by a first AMF, including:

A second receiving module is used to receive a registration request message sent by the first base station, where the registration request message includes: a first service fast establishment indication and registration parameter information;

A registration module, used to execute a registration process based on the registration request message;

Among them, the first service fast establishment indication is used to instruct the first AMF to execute the registration process and PDU session establishment process in parallel; the registration parameter information is obtained by the first base station based on the service fast establishment request message sent by the terminal, and the service fast establishment request message is used to request the simultaneous execution of registration and protocol data unit PDU session establishment.

In a sixth aspect, the present invention further provides a service establishment device, which is executed by a first SMF, comprising:

A third receiving module is used to receive a PDU session establishment request message sent by the first base station, where the PDU session establishment request message includes a second service fast establishment indication and session establishment parameter information;

A session establishment module, used to execute a PDU session establishment process based on the PDU session establishment request message;

Among them, the second service quick establishment indication is used to instruct the first SMF to execute the PDU session establishment process and registration process in parallel; the session establishment parameter information is obtained by the first base station based on the service quick establishment request message sent by the terminal, and the service quick establishment request message is used to request the simultaneous execution of registration and protocol data unit PDU session establishment.

In a seventh aspect, the present invention further provides a base station, the base station being a first base station, comprising a processor and a transceiver, the transceiver receiving and sending data under the control of the processor, and the processor being configured to perform the following operations:

Receiving, by a transceiver, a service fast establishment request message sent by a terminal, wherein the service fast establishment request message is used to request simultaneous execution of registration and protocol data unit (PDU) session establishment;

Based on the service rapid establishment request message, obtain the authentication service function AUSF address and the unified data management UDM address, the AUSF address is used for security authentication in the registration process and security authentication in the PDU session establishment process;

Based on the UDM address, determine the selected first access and mobility management function AMF and the first session management function SMF;

Execute the registration process according to the first AMF, and execute the PDU session establishment process according to the first SMF.

In an eighth aspect, the present invention further provides an AMF, wherein the AMF is a first AMF, comprising a processor and a transceiver, wherein the transceiver receives and sends data under the control of the processor, and the processor is configured to perform the following operations:

Receiving, by a transceiver, a registration request message sent by a first base station, the registration request message including: a first service fast establishment indication and registration parameter information;

Based on the registration request message, executing a registration process;

Among them, the first service fast establishment indication is used to instruct the first AMF to execute the registration process and PDU session establishment process in parallel; the registration parameter information is obtained by the first base station based on the service fast establishment request message sent by the terminal, and the service fast establishment request message is used to request the simultaneous execution of registration and protocol data unit PDU session establishment.

In a ninth aspect, the present invention further provides an SMF, wherein the SMF is a first SMF, comprising a processor and a transceiver, wherein the transceiver receives and sends data under the control of the processor, and the processor is configured to perform the following operations:

Receiving, through the transceiver, a PDU session establishment request message sent by the first base station, wherein the PDU session establishment request message includes a second service fast establishment indication and session establishment parameter information;

Based on the PDU session establishment request message, execute the PDU session establishment process;

Among them, the second service quick establishment indication is used to instruct the first SMF to execute the PDU session establishment process and registration process in parallel; the session establishment parameter information is obtained by the first base station based on the service quick establishment request message sent by the terminal, and the service quick establishment request message is used to request the simultaneous execution of registration and protocol data unit PDU session establishment.

In the tenth aspect, the present invention also provides a computer-readable storage medium having a computer program stored thereon, characterized in that when the program is executed by a processor, it implements the steps in the service establishment method as described in the first aspect above, or implements the steps in the service establishment method as described in the second aspect above, or implements the steps in the service establishment method as described in the third aspect above.

The above technical solution of the present invention has at least the following beneficial effects:

In an embodiment of the present invention, a service rapid establishment request message sent by a receiving terminal is used to request simultaneous execution of registration and protocol data unit PDU session establishment; based on the service rapid establishment request message, an authentication service function AUSF address and a unified data management UDM address are obtained, and the AUSF address is used for security authentication in the registration process and security authentication in the PDU session establishment process; based on the UDM address, the selected first access and mobility management function AMF and first session management function SMF are determined; the registration process is executed according to the first AMF, and the PDU session establishment process is executed according to the first SMF. In this way, through the above processing, the registration process and the PDU session establishment process can be executed synchronously, thereby realizing the rapid establishment of the service channel, avoiding unnecessary AMF forwarding steps, and reducing signaling overhead.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A is a schematic diagram showing a network architecture of an existing NAS model;

FIG. 1B shows a second schematic diagram of the network architecture of the existing NAS model;

FIG2 is a schematic diagram showing an existing registration process;

FIG3 is a schematic diagram showing a conventional PDU session establishment process;

FIG4 is a schematic diagram showing a network architecture of a NAS model according to an embodiment of the present invention;

FIG5 is a schematic diagram showing one of the flow charts of the service establishment method according to an embodiment of the present invention;

FIG6 is a schematic diagram showing a method 1 for implementing a terminal sending indication information according to an embodiment of the present invention;

FIG7 is a schematic diagram showing a second method for implementing a terminal sending indication information according to an embodiment of the present invention;

FIG8 is a schematic diagram showing one of the embodiments of the present invention using the third method to implement the terminal sending indication information;

FIG9 shows a second schematic diagram of implementing the terminal sending indication information by adopting the third method according to an embodiment of the present invention;

FIG10 is a second flow chart showing a method for establishing a service according to an embodiment of the present invention;

FIG11 is a schematic diagram showing a third flow chart of a service establishment method according to an embodiment of the present invention;

FIG12 is a fourth flow chart showing a method for establishing a service according to an embodiment of the present invention;

FIG13 is a schematic diagram showing one of the modules of the service establishment device according to an embodiment of the present invention;

FIG14 shows a second schematic diagram of a module of a service establishment device according to an embodiment of the present invention;

FIG15 is a schematic diagram showing a third module of the service establishment device according to an embodiment of the present invention;

FIG16 is a schematic diagram showing the hardware structure of a base station according to an embodiment of the present invention;

FIG17 is a schematic diagram showing the hardware structure of the AMF according to an embodiment of the present invention;

FIG18 is a schematic diagram showing the hardware structure of the SMF according to an embodiment of the present invention.

DETAILED DESCRIPTION

In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

For ease of understanding, see Figure 2 for a brief description of the 5G registration process.

Registration is the first process performed by the UE after it is turned on. Through registration, the UE connects to the network and can obtain services from the network. After the UE is connected to the network, the registration process is also performed. There are several types of registration processes:

Initial registration: The UE connects to the network after powering on.

Periodic registration: Connection Management - Idle (CM-IDLE) The UE updates the network to show that the UE is still reachable and updates the periodic AMF configuration.

Mobility registration: When the UE moves out of the registration area, or when the UE needs to update its capabilities or other parameters and needs to negotiate through the registration process.

Emergency Registration: This is used only when the UE is registering for emergency services.

The traditional registration process generally includes the following steps:

A. UE sends a NAS registration request (Registration Request) to AMF through RAN.

If a temporary UE identity (temporary mobile user identity 5G-S-TMSI or globally unique AMF identity GUAMI) is included and RAN can map them to a valid AMF, then RAN sends the NAS message to that AMF; otherwise, RAN selects an AMF based on the requested Network Slice Selection Assistance Information (NSSAI) or the configured default AMF and sends the NAS message to that AMF.

B. If a new AMF is selected and the UE provides the GUAMI containing the old AMF identity, the new AMF obtains the UE context from the old AMF.

That is, the new AMF sends Namf_Communication_UEContextTransfer to the old AMF, and the old AMF returns a Namf_Communication_UEContextTransfer response to the new AMF.

If neither the old AMF nor the new AMF knows the UE's temporary ID (GUTI), the new AMF will request the UE to send SUCI. That is, the new AMF sends an Identity Request to the UE, and the UE returns an Identity Response to the new AMF.

C. Use 5G Authentication and Key Agreement (AKA) or Extensible Authentication Protocol (EAP) AKA for authentication.

D. The new AMF tells the old AMF that it is providing services to the UE.

That is, the new AMF sends Namf_Communication_RegistrationStatusUpdate to the old AMF.

E. AMF can also use the Identity Request message to request the UE to send a permanent equipment identifier (PEI). Use the Equipment Identity Register (Equipment Identity Register, EIR) to check the identity of the mobile device ME, that is, AMF sends N5g-eir_EquipmentIdentifierCheck_Get to the EIR.

F. AMF registers it as the AMF serving the UE under the current access technology through the Unified Data Management (UDM) service. AMF also requests subscription data and subscribes to subscription data updates through the Nudm_SDM service. UDM notifies the old AMF that it has been deregistered.

G. If the Policy Control Function (PCF) is deployed, the AMF will establish an AM policy association with the PCF and obtain the AM policy.

H. If the UE wants to activate the user plane connection for an existing PDU session, the AMF will call the Nsmf_PDUSession_UpdataSMContext (PDU session update short message context) service operation. If the PDU session status in the UE and AMF does not match, the AMF calls the Nsmf_PDUSession_ReleaseSMContext (PDU session release short message context) service operation to request the release of these PDU sessions.

I. If the registration procedure has been successful so far, the AMF shall provide the NAS Registration Accept to the UE. The UE sends a NAS Registration Complete message.

J. If the network deploys UE policy (ANDSP or URSP), the AMF establishes an association with the UE policy of the PCF so that the PCF can provide the UE policy to the UE.

Referring to Figure 3, the 5G PDU session establishment process is briefly described.

When the UE wants to create a new PDU session or switch a PDU session between non-3GPP access and 3GPP access, the UE starts the PDU session establishment process. The process generally includes the following steps:

A. UE sends a 5GSM NAS PDU session establishment message to AMF, which includes PDU session ID, S-NSSAI requested by Digital Data Network (DNN), PDU session type, etc. AMF performs NAS security processing. If the PDU session establishment process is used to establish a new PDU session, AMF will select a new session management function (Session Management Function, SMF). AMF can discover available SMFs through the Network Repository Function (NRF) to serve the selected DNN and S-NSSAI.

B. AMF forwards the NAS-SM container (including the PDU session establishment message) to SMF. SMF obtains the subscription data related to session management from UDM and subscribes to the update of subscription data from UDM.

C. If secondary authentication is required, SMF performs secondary authentication.

D. SMF selects a PCF to establish an SM policy session and obtains the initial Policy Control and Charging (PCC) rules. SMF also selects a UPF, allocates a UE IP address, and establishes an N4 session with the selected UPF.

E. SMF sends a 5GSM NAS PDU session establishment acceptance message to the UE, and sends the UPF GTP-U tunnel endpoint information and quality of service (QoS) information to the RAN. This message is sent through the AMF.

F. AMF creates and sends N2 message, which contains NAS message (PDU session establishment accept) and PDU session information for RAN (GTP-U tunnel information and QoS information). RAN replies to AMF with RAN GTP-U tunnel endpoint information. At this point, the uplink path is ready.

G. AMF forwards the PDU session information received from RAN to SMF so that SMF can provide RAN GTP-U tunnel information to UPF for downlink forwarding. At this point, the downlink path is also ready.

H. SMF registers itself in UDM as the SMF serving this PDU session ID.

As mentioned above, in the existing 5G network, the control plane connection between RAN and CN is only N2, and all control plane NAS messages sent by UE need to be forwarded by AMF, which will lead to large signaling overhead, and the PDU session establishment process occurs after the registration process, so the PDU session establishment time is relatively long, which is mainly limited by the NAS model shown in Figures 1A and 1B. That is, only when a NAS-MM context is established between the UE and AMF, and the AMF uses NAS messages for secure exchange, can other NAS processes be executed. This will lead to low service establishment efficiency.

In order to solve the above problems, the present invention provides a business establishment method, device, equipment and medium, wherein the method and the device are based on the same application concept. Since the principles of solving the problems by the method and the device are similar, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

After the N2 interface is serviced, the RAN service can communicate directly with the CN service through the serviced interface without the need for AMF forwarding. Accordingly, the NAS model can also be changed, that is, the NSA model provided by the embodiment of the present invention, see Figure 4; the NAS message between the UE and the CN may not be dependent on NAS-MM, but may be directly transparently transmitted to other CN NFs (such as SMF, PCF, Short Message Service Function (SMSF), Local Management Function (LMF)) through the RAN. The advantage of the NSA model provided by the embodiment of the present invention is that, since each NAS connection has its own security context (key, integrity and cryptographic algorithm), the destruction of a single NAS connection will not affect other NAS connections, reducing the correlation between NAS messages. The method of the embodiment of the present invention is applicable to this NAS model.

As shown in FIG5 , a flow chart of a service establishment method provided in an embodiment of the present invention is shown. The method is executed by a first base station. The method may include:

Step 501, receiving a service fast establishment request message sent by a terminal, wherein the service fast establishment request message is used to request simultaneous execution of registration and protocol data unit PDU session establishment;

Optionally, the service fast establishment request message includes a first Hypertext Transfer Protocol HTTP request message and a second HTTP request message, wherein the first HTTP request message is used to request registration, and the second HTTP request message is used to request protocol data unit PDU session establishment.

It should be noted that the first HTTP request message is a registration HTTP request message, and the second HTTP request message is a PDU session establishment HTTP request message. The first HTTP request message can be sent to AMF, and the second HTTP request message can be sent to SMF.

Step 502, based on the service rapid establishment request message, obtain the authentication service function AUSF address and the unified data management UDM address, the AUSF address is used for security authentication in the registration process and the security authentication in the PDU session establishment process;

Optionally, the service fast establishment request message includes at least one of the following:

A terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, and the second base station is an original base station providing services for the terminal;

Sign the hidden logo SUCI;

The second AMF ID, the second AMF is the original AMF that provides services to the terminal.

It should be noted that the first base station can obtain the authentication service function (AUSF) address and the UDM address based on the specific content included in the service rapid establishment request message. The specific implementation is detailed in the following embodiment.

Step 503: Determine the selected first access and mobility management function AMF and first session management function SMF based on the UDM address;

Specifically, the AMF selection-related contract data and the SMF selection-related contract data can be obtained through the UDM corresponding to the UDM address, and the AMF and SMF are selected based on the above contract data to determine the selected first AMF and first SMF. The specific implementation is detailed in the following embodiment.

Step 504, execute the registration process according to the first AMF, and execute the PDU session establishment process according to the first SMF.

Through the above processing, the registration process and the PDU session establishment process can be executed synchronously, realizing the rapid establishment of the service channel, avoiding unnecessary AMF forwarding steps, and reducing signaling overhead.

In an optional embodiment, the above step 502 may specifically include:

1-1, obtaining a first terminal context through a radio access network RAN according to the UE ID;

The UE ID here is allocated by the second base station to the terminal. It should be noted that if it corresponds to the base station switching scenario, the second base station is the source base station that previously provided services to the terminal, and the first base station is the target base station after the switching. If it is not a base station switching scenario, the second base station is the first base station.

1-2. Obtain the AUSF address and UDM address from the first terminal context.

Here, the first terminal context may be understood as a RAN side UE context.

In another optional embodiment, the above step 502 may specifically include:

2-1, perform AMF selection based on local configuration, and send a third request message for requesting to obtain the AUSF address and UDM address to the selected first AMF, where the third request message includes the SUCI and the second AMF ID;

2-2. Receive the AUSF address and the UDM address sent by the first AMF, wherein the AUSF address and the UDM address are obtained by the first AMF through the second AMF from the second terminal context through the second AMF, and then through the network storage function NRF based on SUPI.

It should be noted that after the first AMF receives the third request message, it obtains the second terminal context (i.e., the UE context on the core network CN side) from the second AMF, and then obtains the terminal's subscription permanent identifier (SUPI) from the second terminal context; uses SUPI to initiate AUSF and UDM discovery to NRF, thereby obtaining the AUSF address and UDM address, and forwarding them to the first base station.

In an optional embodiment, the above step 503 may specifically include:

Step 5031: Send a fourth request message for requesting first subscription data and second subscription data to the UDM corresponding to the UDM address, where the first subscription data is the subscription data selected by the AMF, and the second subscription data is the subscription data selected by the SMF, and the fourth request message includes the UE ID or the SUCI;

Step 5032: Perform AMF selection based on the first subscription data returned by the UDM to determine the selected first AMF;

Step 5033: Perform SMF selection based on the second contract data returned by the UDM to determine the selected first SMF.

It should be noted that the first base station may also request the UDM for a subscription data change notification. The first base station registers itself as a base station providing services for the terminal.

In an optional embodiment, in the above step 504, executing the registration process according to the first AMF may include:

1. Send a registration request message to the first AMF, where the registration request message includes: SUCI, a first service fast establishment indication, the AUSF address, the UDM address and the selected first SMF address, where the first service fast establishment indication is used to instruct the first AMF to execute the registration process and the PDU session establishment process in parallel;

It should be noted that SUCI, the AUSF address, the UDM address and the selected first SMF address are registration parameter information, which are used when the first AMF registers. Specifically, the registration process on the first AMF side refers to the subsequent description of the service establishment method on the first AMF side.

2. Receive the first indication information sent by the first AMF, where the first indication information is used to indicate that the registration is complete, and the registration request message is used by the first AMF to obtain the access and mobility AM policy.

In an optional embodiment, in the above step 504, executing the PDU session establishment process according to the first SMF may specifically include:

1. Send a PDU session establishment request message to the first SMF, where the PDU session establishment request message includes SUCI, a second service fast establishment indication, the AUSF address, the UDM address and the selected first AMF address, and the second service fast establishment indication is used to instruct the first SMF to execute the PDU session establishment process and the registration process in parallel;

Here, SUCI, the AUSF address, the UDM address and the selected first AMF address are session establishment parameter information, which are used when the first SMF establishes a PDU session. Specifically, the PDU session establishment process on the first SMF side is specifically described in the subsequent description of the service establishment method on the first SMF side.

2. Receive second indication information sent by the first SMF, where the second indication information is used to indicate that the PDU session establishment is complete, and the PDU session establishment request message is used by the first SMF to establish an N4 session with the user plane function UPF selected by the first SMF;

3. Send a PDU session establishment completion confirmation message to the first SMF.

In an optional embodiment, before step 501, the method of the embodiment of the present invention may further include:

Sending third indication information to the terminal, where the third indication information is used to indicate whether the first base station itself supports a capability of quickly establishing a service.

Optionally, the third indication information is carried in system information, and the system information also includes a list of services that the network allows to use the fast service establishment method.

It should be noted that, in this embodiment, the first base station indicates to the terminal whether it supports the capability of quickly establishing the service. Only when the first base station is indicated to support the capability of quickly establishing the service, the above-mentioned step 501 and subsequent steps can be executed. In this way, the terminal can use this as a reference to avoid the terminal sending a request message that the first base station cannot respond to or process (i.e., sending a request message for quickly establishing the service), thereby saving network resources.

In an optional embodiment, before step 501, the method of the embodiment of the present invention may further include:

receiving fourth indication information sent by the terminal, where the fourth indication information is used to instruct the terminal to use a fast service establishment mode; or,

The fifth indication information sent by the terminal is received, where the fifth indication information is used to indicate a terminal preference, and the terminal preference includes at least one of the following:

Whether the terminal prefers to use a fast service establishment mode;

Use terminal services that require rapid service establishment, such as XR and V2X services, when initiating services;

Use the restriction information quickly established by the service, such as it is only applicable to initial registration and periodic registration, and not applicable to mobility registration.

It should be noted that in the previous embodiment, the first base station sends indication information to indicate whether it supports the capability of rapid service establishment; in this embodiment, the terminal sends indication information to instruct the terminal to use the rapid service establishment method, or indicates the terminal's own preference. The specific terminal preference includes at least one of the above, which is conducive to the subsequent first base station side to make an adaptive response to the rapid service establishment request message sent by the terminal or give a suitable processing strategy.

Optionally, the fourth indication information is carried in a radio resource control RRC establishment request message; and the fifth indication information is carried in terminal auxiliary information.

Optionally, the service fast establishment request message is carried in the RRC setup complete message. It should be understood that by carrying the service fast establishment request message in the RRC setup complete message, the terminal is implicitly instructed to use the service fast establishment mode.

That is, the indication is achieved through three methods. Specifically, method 1: through the establishment reason value in the RRC establishment request message, for example, the establishment reason value is: use service fast establishment, see Figure 6; method 2: through the RRC establishment completion message carrying the service fast establishment request message, implicitly instructing the terminal to use the service fast establishment method, see Figure 7; It should be noted that method 1 and method 2 are applicable to a single registration process.

Method 3: reporting the terminal preference through the terminal assistance information UEAssistanceInformation. This method is applicable to the scenario where the UE re-accesses the base station, see Figure 8; it is also applicable to the scenario where the UE accesses a new base station, see Figure 9.

It should be noted that mode 3 is applicable to each registration process. The base station may store the terminal preference in the RANUE context.

The service establishment method of the embodiment of the present invention receives a service fast establishment request message sent by a terminal, wherein the service fast establishment request message is used to request simultaneous execution of registration and protocol data unit (PDU) session establishment; based on the service fast establishment request message, obtains an authentication service function AUSF address and a unified data management (UDM) address, wherein the AUSF address is used for security authentication in the registration process and security authentication in the PDU session establishment process; based on the UDM address, determines the selected first access and mobility management function AMF and first session management function SMF; executes the registration process according to the first AMF, and executes the PDU session establishment process according to the first SMF, so that through the above processing, the registration process and the PDU session establishment process can be executed synchronously, thereby realizing the rapid establishment of the service channel, avoiding unnecessary AMF forwarding steps, and reducing signaling overhead.

As shown in Figure 10, it is a schematic diagram of a flow chart of a service establishment method provided in an embodiment of the present invention, and the method is executed by a first AMF, wherein the method may include:

Step 1001: receiving a registration request message sent by a first base station, wherein the registration request message includes: a first service fast establishment indication and registration parameter information;

Among them, the first service fast establishment indication is used to instruct the first AMF to execute the registration process and PDU session establishment process in parallel; the registration parameter information is obtained by the first base station based on the service fast establishment request message sent by the terminal, and the service fast establishment request message is used to request the simultaneous execution of registration and protocol data unit PDU session establishment.

Optionally, the registration parameter information includes: a contract hidden identifier SUCI, an authentication service function AUSF address, a unified data management UDM address and a first SMF address selected by the first base station.

Step 1002, executing a registration process based on the registration request message;

Optionally, the service fast establishment request message includes a first Hypertext Transfer Protocol HTTP request message and a second HTTP request message, wherein the first HTTP request message is used to request registration, and the second HTTP request message is used to request protocol data unit PDU session establishment.

Optionally, the service fast establishment request message includes at least one of the following:

A terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, and the second base station is an original base station providing services for the terminal;

SUCI;

The second access and mobility management function AMF ID, the second AMF is the original AMF that provides services for the terminal.

In an optional embodiment, before the above step 1001, the method of the present invention may further include:

1) receiving a third request message sent by the first base station for requesting to obtain the AUSF address and the UDM address, where the third request message includes the SUCI and the second AMF ID, where the second AMF is the original AMF providing services for the terminal;

2) obtaining a second terminal context through the second AMF;

3) Acquire the subscription permanent identity SUPI of the terminal from the context of the second terminal;

4) According to SUPI, obtaining the AUSF address and the UDM address through a network storage function NRF; and sending the AUSF address and the UDM address to the first base station.

The purpose of executing this embodiment is to enable the first base station to obtain the AUSF address and the UDM address, so that the first base station performs subsequent AMF selection and SMF selection based on the UDM address, and the AMF performs the security authentication process in the registration process based on the AUSF address.

In an optional embodiment, the above step 1002 may specifically include:

(1) Obtaining the mobility management context through the second AMF;

Here, what is obtained is the mobility management context on the core network side.

(2) Performing security authentication related to registration with the AUSF according to the AUSF address; and performing security authentication related to registration with the terminal;

That is to say, the first AMF initiates the registration-related authentication and security processes.

(3) According to the UDM address, the first AMF is registered as the AMF providing services for the terminal through the UDM, and the subscription data related to access and mobility AM is obtained;

Here, the first AMF registers itself as the AMF providing services to the terminal through the UDM registration process. In addition, the UDM initiates a deregistration process to the second AMF.

The first AMF requests the UDM for access and mobility (AM) related contract data, which may include parameters such as the aggregate maximum rate UE-AMBR of the contracted terminal, the contracted periodic update timer, the radio access technology (RAT) access restriction, and the regional access restriction.

(4) Select a policy control function PCF based on the contract data related to the AM, and obtain the AM policy through the selected PCF;

(5) Sending first indication information to the first base station, where the first indication information is used to indicate that the registration is complete.

In an optional embodiment, the method of the present invention may further include:

A first notification message for notifying the completion of registration is sent to the first SMF through the first SMF address, where the first notification message includes a terminal identifier assigned by the first AMF to the terminal.

Here, the purpose of sending the first notification message to the first SMF is to enable the first SMF to associate the terminal identifier assigned by the first AMF to the terminal with the terminal identifier assigned locally to the terminal.

It should be noted that the first AMF and the first SMF subscribe to event notifications from each other. For example, the SMF subscribes to the UE location change notification from the AMF.

Finally, the first base station (ie, the RAN side) notifies the UE that the service rapid establishment process is completed, that is, the registration is completed and the PDU session establishment is completed.

In an optional embodiment, the method of the present invention may further include:

Receiving a second notification message sent by the first SMF for notifying that the PDU session establishment is complete, wherein the second notification message includes a terminal identifier allocated by the first SMF to the terminal;

The terminal identifier locally allocated to the terminal is associated with the terminal identifier allocated to the terminal by the first SMF.

In this embodiment, by receiving the second notification message sent by the first SMF, the terminal identifier locally assigned to the terminal and the terminal identifier assigned to the terminal by the first SMF are associated to determine that the service rapid establishment process is for the same terminal.

The service establishment method of the embodiment of the present invention receives a registration request message sent by a first base station, wherein the registration request message includes: a first service quick establishment indication and registration parameter information; based on the registration request message, a registration process is executed, wherein the first service quick establishment indication is used to instruct the first AMF to execute the registration process and the PDU session establishment process in parallel; the registration parameter information is obtained by the first base station based on a service quick establishment request message sent by a terminal, wherein the service quick establishment request message is used to request to execute registration and protocol data unit PDU session establishment simultaneously, so that the AMF side executes the registration process while the SMF side executes the PDU session establishment process, thereby realizing the rapid establishment of the service channel and avoiding unnecessary AMF forwarding steps, reducing signaling overhead, and preventing AMF from becoming a forwarding bottleneck.

As shown in FIG. 11 , it is a flow chart of a service establishment method provided in an embodiment of the present invention, and the method is executed by a first SMF, wherein the method may include:

Step 1101: receiving a PDU session establishment request message sent by a first base station, wherein the PDU session establishment request message includes a second service fast establishment indication and session establishment parameter information;

Among them, the second service fast establishment indication is used to instruct the first SMF to execute the PDU session establishment process and registration process in parallel; the session establishment parameter information is obtained by the first base station based on the service fast establishment request message sent by the terminal, and the service fast establishment request message is used to request the simultaneous execution of registration and protocol data unit PDU session establishment.

Optionally, the session establishment parameter information includes: a contract hidden identifier SUCI, an authentication service function AUSF address, a unified data management UDM address and a first AMF address selected by the first base station.

Step 1102, executing a PDU session establishment process based on the PDU session establishment request message;

Optionally, the service fast establishment request message includes a first Hypertext Transfer Protocol HTTP request message and a second HTTP request message, wherein the first HTTP request message is used to request registration, and the second HTTP request message is used to request protocol data unit PDU session establishment.

Optionally, the service fast establishment request message includes at least one of the following:

A terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, and the second base station is an original base station providing services for the terminal;

SUCI;

The second access and mobility management function AMF ID, the second AMF is the original AMF that provides services for the terminal.

In an optional embodiment, the above step 1102 may specifically include:

1. Obtain the PDU session context through the second SMF, where the second SMF is the original SMF that provides services for the terminal;

Here, what is obtained is the CN side PDU session context.

2. Perform security authentication related to the PDU session with the AUSF according to the AUSF address; and perform security authentication related to the PDU session with the terminal;

That is, the first SMF initiates the authentication and security process related to the PDU session.

3. According to the UDM address, the first SMF is registered as the SMF providing services for the terminal through the UDM, and the contract data related to the session management SM is obtained;

Here, the first SMF registers itself as the SMF providing services for the terminal through the UDM registration process. Second, the UDM initiates a deregistration process to the second SMF.

The first SMF requests session management (SM) related contract data from UDM, which may include the contracted slice information and the contracted QoS level (such as AMBR, etc.).

4. Select the policy control function PCF according to the SM-related subscription data, and obtain the policy control and charging PCC policy through the selected PCF;

5. Select the user plane function UPF according to the PCC policy and establish an N4 session with the selected UPF.

From then on, the PDU session establishment on the first SMF side is completed.

Based on this, in an optional embodiment, the method of the present invention may further include:

Sending second indication information to the first base station, where the second indication information is used to indicate that the PDU session establishment is complete;

Receive a PDU session establishment completion confirmation message sent by the first base station.

In an optional embodiment, the present invention may further include:

1. Receive a first notification message sent by the first AMF for notifying the completion of registration, where the first notification message includes a terminal identifier allocated by the first AMF to the terminal;

2. Associate the terminal identifier assigned locally to the terminal with the terminal identifier assigned by the first AMF to the terminal.

In this embodiment, by receiving the first notification message sent by the first AMF, the terminal identifier locally assigned to the terminal is associated with the terminal identifier assigned to the terminal by the first AMF, and it is determined that the service rapid establishment process is for the same terminal.

In an optional embodiment, the method of the present invention may further include:

A second notification message for notifying that the PDU session establishment is completed is sent to the first AMF through the first AMF address, and the second notification message includes the terminal identifier assigned by the first SMF to the terminal.

Here, the purpose of sending the second notification message to the first AMF is to enable the first AMF to associate the terminal identifier assigned by the first SMF to the terminal with the terminal identifier assigned locally to the terminal.

The service establishment method of an embodiment of the present invention receives a PDU session establishment request message sent by a first base station, wherein the PDU session establishment request message includes a second service fast establishment indication and session establishment parameter information; based on the PDU session establishment request message, a PDU session establishment process is executed; wherein the second service fast establishment indication is used to instruct the first SMF to execute the PDU session establishment process and the registration process in parallel; the session establishment parameter information is obtained by the first base station based on a service fast establishment request message sent by a terminal, wherein the service fast establishment request message is used to request to execute registration and protocol data unit PDU session establishment simultaneously, so that the SMF side executes the PDU session establishment process while the AMF side executes the registration process, thereby realizing the rapid establishment of the service channel, avoiding unnecessary AMF forwarding steps, and reducing signaling overhead.

12, the implementation process of the service establishment method of the present invention is described from the perspective of interaction between devices.

1. The UE sends a service fast establishment request message to the new gNB, which carries both the initial registration HTTP request message and the PDU session establishment HTTP request message.

(1) The request message also needs to carry at least one of the following:

①UE ID assigned by the old gNB to the UE (gNB ID + random number, which can also be I-RNTI);

②SUCI and old AMF ID;

2. The new gNB obtains the AUSF address and UDM address in the following two ways:

(1) Through UE context on the RAN side

① The new gNB obtains the RAN UE context based on the old gNB UE ID and obtains the AUSF/UDM address from the context;

(2) Based on CN-side UE context

① The new gNB performs AMF selection based on local configuration and initiates a request message to the new AMF to obtain the AUSF address and UDM address. The request message carries SUCI and old AMF ID.

② The new AMF obtains the CN-side UE context from the old AMF, obtains the UE's SUPI from the context, uses the SUPI to initiate AUSF discovery and UDM discovery to the NRF, thereby obtaining the AUSF address and UDM address, and forwarding them to the new gNB.

3. The new gNB requests the UDM to select the relevant subscription data from the AMF and the SMF to select the relevant subscription data. The request message carries the old gNB UE ID or SUCI. The new gNB can also request the UDM to notify the subscription data change. The new gNB registers itself as the gNB providing services for the UE.

4. The new gNB performs AMF selection based on the subscription data related to AMF selection, and performs SMF selection based on the subscription data related to SMF selection.

It should be noted that steps 5a to 12a are a registration process, and steps 5b to 14b are a PDU session establishment process. The registration process and the PDU session establishment process are executed simultaneously.

5a. The new gNB initiates a registration request to the AMF. The request message carries the SUCI, the service fast establishment indication, and the AUSF address, UDM address, and the selected SMF address. The service fast establishment indication is used to indicate to the AMF that this process is a process for performing registration and PDU session establishment at the same time.

6a. AMF can obtain the CN side mobility management context from the old AMF.

7a. AMF initiates the registration-related authentication/security process.

8a. AMF registers itself as the AMF providing services to the UE through the UDM registration process. UDM initiates a deregistration process to the old AMF.

9a. AMF requests AM-related subscription data from UDM, including the subscribed UE-AMBR, the subscribed periodic update timer, RAT access restriction, regional access restriction and other parameters.

10a. AMF performs PCF selection.

11a. AMF requests the AM policy from the selected PCF.

12a. AMF indicates that the new gNB registration is complete.

5b. The new gNB initiates a PDU session establishment request message to the SMF, which carries the SUCI, the service fast establishment indication, and the AUSF address, UDM address, and the selected AMF address. The service fast establishment indication is used to indicate to the SMF that this process is a process for performing registration and PDU session establishment at the same time.

6b. SMF can obtain the CN side PDU session context from the old SMF.

7b. SMF initiates authentication/security processes related to the PDU session.

8b. The SMF registers itself as the SMF providing services for the UE through the UDM registration process. The UDM initiates a deregistration process to the old SMF.

9b. SMF requests SM-related contract data from UDM, including contracted slice information and contracted QoS level (such as AMBR, etc.).

10b. SMF performs PCF selection.

11b. The SMF requests the selected PCF for the PCC policy.

12b. SMF selects UPF and establishes N4 session with UPF.

13b. SMF indicates that the new gNB PDU session is established. The message carries at least RAN side QoS parameters and uplink tunnel endpoint information.

14b. The new gNB sends a PDU session establishment completion confirmation message to the SMF, which carries at least the downlink tunnel endpoint information.

15. AMF and SMF notify the completion status based on each other's addresses received from the new gNB. During this process, AMF and SMF associate the UE identities assigned to the UE respectively.

16. AMF and SMF subscribe to each other's event notifications, for example, SMF subscribes to UE location change notifications from AMF.

17. RAN notifies UE that the service rapid establishment process is completed, that is, registration is completed and PDU session establishment is completed.

As shown in FIG. 13 , an embodiment of the present invention further provides a service establishment device, which is executed by a first base station and may include:

The first receiving module 1301 is used to receive a service fast establishment request message sent by a terminal, where the service fast establishment request message is used to request simultaneous execution of registration and protocol data unit PDU session establishment;

The first acquisition module 1302 is used to obtain the authentication service function AUSF address and the unified data management UDM address based on the service rapid establishment request message, the AUSF address is used for security authentication in the registration process and security authentication in the PDU session establishment process;

The first processing module 1303 is used to determine the selected first access and mobility management function AMF and the first session management function SMF based on the UDM address;

The service establishment module 1304 is used to execute the registration process according to the first AMF and execute the PDU session establishment process according to the first SMF.

Optionally, the service fast establishment request message includes a first Hypertext Transfer Protocol HTTP request message and a second HTTP request message, wherein the first HTTP request message is used to request registration, and the second HTTP request message is used to request protocol data unit PDU session establishment.

Optionally, the service fast establishment request message includes at least one of the following:

A terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, and the second base station is an original base station providing services for the terminal;

Sign the hidden logo SUCI;

The second AMF ID, the second AMF is the original AMF that provides services to the terminal.

Optionally, the first acquisition module 1302 may include:

A first acquiring unit, configured to obtain a first terminal context through a radio access network RAN according to the UE ID;

The second acquisition unit is used to acquire the AUSF address and the UDM address from the first terminal context.

Optionally, the first acquisition module 1302 may include:

A first selection unit, configured to perform AMF selection based on a local configuration;

A first sending unit, configured to send a third request message for requesting to obtain an AUSF address and a UDM address to the selected first AMF, where the third request message includes a SUCI and the second AMF ID;

The first receiving unit is used to receive the AUSF address and the UDM address sent by the first AMF, wherein the AUSF address and the UDM address are obtained by the first AMF through the second AMF from the second terminal context through the second AMF, and then obtained through the network storage function NRF based on the SUPI.

Optionally, the first processing module 1303 may include:

A second sending unit is used to send a fourth request message for requesting first subscription data and second subscription data to the UDM corresponding to the UDM address, where the first subscription data is the subscription data selected by the AMF, and the second subscription data is the subscription data selected by the SMF, and the fourth request message includes the UE ID or the SUCI;

A first processing unit, configured to perform AMF selection based on the first subscription data returned by the UDM, and determine a selected first AMF;

The second processing unit is used to perform SMF selection based on the second subscription data returned by the UDM to determine the selected first SMF.

Optionally, the service establishment module 1304 may include:

A third sending unit is used to send a registration request message to the first AMF, where the registration request message includes: SUCI, a first service fast establishment indication, the AUSF address, the UDM address and the selected first SMF address, where the first service fast establishment indication is used to instruct the first AMF to perform the registration process and the PDU session establishment process in parallel;

The second receiving unit is used to receive the first indication information sent by the first AMF, where the first indication information is used to indicate that the registration is completed, and the registration request message is used by the first AMF to obtain the access and mobility AM policy.

Optionally, the service establishment module 1304 may include:

A fourth sending unit is used to send a PDU session establishment request message to the first SMF, where the PDU session establishment request message includes SUCI, a second service fast establishment indication, the AUSF address, the UDM address and the selected first AMF address, and the second service fast establishment indication is used to instruct the first SMF that the PDU session establishment process and the registration process are executed in parallel;

A third receiving unit is used to receive second indication information sent by the first SMF, where the second indication information is used to indicate that the PDU session establishment is completed, and the PDU session establishment request message is used by the first SMF to establish an N4 session with the user plane function UPF selected by the first SMF;

The fifth sending unit is used to send a PDU session establishment completion confirmation message to the first SMF.

Optionally, the device in the embodiment of the present invention further includes:

The first sending module is used to send third indication information to the terminal, where the third indication information is used to indicate whether the first base station itself supports the capability of quickly establishing a service.

Optionally, the third indication information is carried in system information, and the system information also includes a list of services that the network allows to use the fast service establishment method.

Optionally, the device in the embodiment of the present invention further includes:

a fourth receiving module, configured to receive fourth indication information sent by a terminal, wherein the fourth indication information is used to instruct the terminal to use a fast service establishment mode; or

A fifth receiving module is used to receive fifth indication information sent by the terminal, where the fifth indication information is used to indicate a terminal preference, and the terminal preference includes at least one of the following:

Whether the terminal prefers to use a fast service establishment mode;

Terminal services that are quickly established using services;

Use the restriction information established quickly by the business.

Optionally, the fourth indication information is carried in a radio resource control RRC establishment request message; and the fifth indication information is carried in terminal auxiliary information.

Optionally, the service fast establishment request message is carried in an RRC establishment completion message.

The service establishment device of the embodiment of the present invention receives a service fast establishment request message sent by a terminal, wherein the service fast establishment request message is used to request simultaneous execution of registration and protocol data unit (PDU) session establishment; based on the service fast establishment request message, obtains an authentication service function AUSF address and a unified data management (UDM) address, wherein the AUSF address is used for security authentication in the registration process and security authentication in the PDU session establishment process; based on the UDM address, determines the selected first access and mobility management function AMF and first session management function SMF; executes the registration process according to the first AMF, and executes the PDU session establishment process according to the first SMF, so that through the above processing, the registration process and the PDU session establishment process can be executed synchronously, thereby realizing the rapid establishment of the service channel, avoiding unnecessary AMF forwarding steps, and reducing signaling overhead.

As shown in FIG. 14, an embodiment of the present invention further provides a service establishment device, which is executed by a first AMF, and the device may include:

The second receiving module 1401 is configured to receive a registration request message sent by the first base station, where the registration request message includes: a first service fast establishment indication and registration parameter information;

A registration module 1402, configured to execute a registration process based on the registration request message;

Among them, the first service fast establishment indication is used to instruct the first AMF to execute the registration process and PDU session establishment process in parallel; the registration parameter information is obtained by the first base station based on the service fast establishment request message sent by the terminal, and the service fast establishment request message is used to request the simultaneous execution of registration and protocol data unit PDU session establishment.

Optionally, the registration parameter information includes: a contract hidden identifier SUCI, an authentication service function AUSF address, a unified data management UDM address and a first SMF address selected by the first base station.

Optionally, the service fast establishment request message includes a first Hypertext Transfer Protocol HTTP request message and a second HTTP request message, wherein the first HTTP request message is used to request registration, and the second HTTP request message is used to request protocol data unit PDU session establishment.

Optionally, the service fast establishment request message includes at least one of the following:

A terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, and the second base station is an original base station providing services for the terminal;

SUCI;

The second access and mobility management function AMF ID, the second AMF is the original AMF that provides services for the terminal.

Optionally, the device of the embodiment of the present invention may further include:

a sixth receiving module, configured to receive a third request message sent by the first base station for requesting to obtain the AUSF address and the UDM address, where the third request message includes the SUCI and the second AMF ID, where the second AMF is the original AMF providing services for the terminal;

A second acquisition module is used to obtain a second terminal context through the second AMF;

A third acquisition module, configured to acquire a subscription permanent identity SUPI of the terminal from the second terminal context;

According to SUPI, the AUSF address and the UDM address are obtained through a network storage function NRF; and the AUSF address and the UDM address are sent to the first base station.

Optionally, the registration module 1402 may include:

A third acquiring unit, configured to acquire a mobility management context through a second AMF;

A first security authentication unit is used to perform security authentication related to registration with the AUSF according to the AUSF address; and to perform security authentication related to registration with the terminal;

A first registration unit is used to register the first AMF as the AMF providing services for the terminal through the UDM according to the UDM address, and obtain the subscription data related to the access and mobility AM;

A third processing unit is used to select a policy control function PCF according to the contract data related to the AM, and obtain the AM policy through the selected PCF;

The sixth sending unit is used to send first indication information to the first base station, where the first indication information is used to indicate that the registration is completed.

Optionally, the device in the embodiment of the present invention further includes:

The second sending module sends a first notification message for notifying the completion of registration to the first SMF through the first SMF address, where the first notification message includes a terminal identifier assigned by the first AMF to the terminal.

Optionally, the device in the embodiment of the present invention further includes:

A seventh receiving module, configured to receive a second notification message sent by the first SMF for notifying that the PDU session establishment is complete, wherein the second notification message includes a terminal identifier allocated by the first SMF to the terminal;

The second processing module is used to associate the terminal identifier allocated locally to the terminal with the terminal identifier allocated by the first SMF to the terminal.

The service establishment device of the embodiment of the present invention receives a registration request message sent by a first base station, wherein the registration request message includes: a first service quick establishment indication and registration parameter information; based on the registration request message, a registration process is executed, wherein the first service quick establishment indication is used to instruct the first AMF to execute the registration process and the PDU session establishment process in parallel; the registration parameter information is obtained by the first base station based on a service quick establishment request message sent by a terminal, wherein the service quick establishment request message is used to request to execute registration and protocol data unit PDU session establishment simultaneously, so that the AMF side executes the registration process while the SMF side executes the PDU session establishment process, thereby realizing the rapid establishment of the service channel and avoiding unnecessary AMF forwarding steps, reducing signaling overhead, and preventing AMF from becoming a forwarding bottleneck.

As shown in FIG. 15 , an embodiment of the present invention further provides a service establishment device, which is executed by a first SMF and may include:

The third receiving module 1501 is used to receive a PDU session establishment request message sent by the first base station, where the PDU session establishment request message includes a second service fast establishment indication and session establishment parameter information;

A session establishment module 1502, configured to execute a PDU session establishment process based on the PDU session establishment request message;

Among them, the second service fast establishment indication is used to instruct the first SMF to execute the PDU session establishment process and registration process in parallel; the session establishment parameter information is obtained by the first base station based on the service fast establishment request message sent by the terminal, and the service fast establishment request message is used to request the simultaneous execution of registration and protocol data unit PDU session establishment.

Optionally, the session establishment parameter information includes: a contract hidden identifier SUCI, an authentication service function AUSF address, a unified data management UDM address and a first AMF address selected by the first base station.

Optionally, the service fast establishment request message includes a first Hypertext Transfer Protocol HTTP request message and a second HTTP request message, wherein the first HTTP request message is used to request registration, and the second HTTP request message is used to request protocol data unit PDU session establishment.

Optionally, the service fast establishment request message includes at least one of the following:

A terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, and the second base station is an original base station providing services for the terminal;

SUCI;

The second access and mobility management function AMF ID, the second AMF is the original AMF that provides services for the terminal.

Optionally, the session establishing module 1502 may include:

A fourth acquisition unit, configured to acquire a PDU session context through a second SMF, where the second SMF is an original SMF providing services for the terminal;

A second security authentication module is used to perform security authentication related to the PDU session with the AUSF according to the AUSF address; and to perform security authentication related to the PDU session with the terminal;

The fourth processing unit is used to register the first SMF as the SMF providing services for the terminal through the UDM according to the UDM address, and obtain the subscription data related to the session management SM;

A fifth processing unit, configured to select a policy control function PCF according to the subscription data related to the SM, and obtain a policy control and charging PCC policy through the selected PCF;

The sixth processing unit is used to select a user plane function UPF according to the PCC policy and establish an N4 session with the selected UPF.

Optionally, the device in the embodiment of the present invention further includes:

A third sending module, used to send second indication information to the first base station, where the second indication information is used to indicate that the PDU session establishment is completed;

An eighth receiving module is used to receive a PDU session establishment completion confirmation message sent by the first base station.

Optionally, the device in the embodiment of the present invention further includes:

a ninth receiving module, configured to receive a first notification message sent by the first AMF for notifying that the registration is completed, where the first notification message includes a terminal identifier allocated by the first AMF to the terminal;

The third processing module is used to associate the terminal identifier assigned locally to the terminal with the terminal identifier assigned by the first AMF to the terminal.

The service establishment device of the embodiment of the present invention receives a PDU session establishment request message sent by a first base station, wherein the PDU session establishment request message includes a second service fast establishment indication and session establishment parameter information; based on the PDU session establishment request message, a PDU session establishment process is executed; wherein the second service fast establishment indication is used to instruct the first SMF to execute the PDU session establishment process and the registration process in parallel; the session establishment parameter information is obtained by the first base station based on the service fast establishment request message sent by the terminal, wherein the service fast establishment request message is used to request to execute registration and protocol data unit PDU session establishment simultaneously, so that the SMF side executes the PDU session establishment process while the AMF side executes the registration process, thereby realizing the rapid establishment of the service channel, avoiding unnecessary AMF forwarding steps, and reducing signaling overhead.

In order to better achieve the above purpose, as shown in FIG16, an embodiment of the present invention further provides a base station, which is a first base station, including a processor 1600 and a transceiver 1610, and the processor 1600 is used to perform the following process:

Receiving, by a transceiver, a service fast establishment request message sent by a terminal, wherein the service fast establishment request message is used to request simultaneous execution of registration and protocol data unit (PDU) session establishment;

Based on the service rapid establishment request message, obtain the authentication service function AUSF address and the unified data management UDM address, the AUSF address is used for security authentication in the registration process and security authentication in the PDU session establishment process;

Based on the UDM address, determine the selected first access and mobility management function AMF and the first session management function SMF;

Execute the registration process according to the first AMF, and execute the PDU session establishment process according to the first SMF.

Optionally, the service fast establishment request message includes a first Hypertext Transfer Protocol HTTP request message and a second HTTP request message, wherein the first HTTP request message is used to request registration, and the second HTTP request message is used to request protocol data unit PDU session establishment.

Optionally, the service fast establishment request message includes at least one of the following:

A terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, and the second base station is an original base station providing services for the terminal;

Sign the hidden logo SUCI;

The second AMF ID, the second AMF is the original AMF that provides services to the terminal.

Optionally, the processor 1600 is further configured to:

Obtaining a first terminal context through a radio access network RAN according to the UE ID;

Obtain the AUSF address and UDM address from the first terminal context.

Optionally, the processor 1600 is further configured to:

Perform AMF selection based on local configuration, and send a third request message for requesting to obtain the AUSF address and the UDM address to the selected first AMF through the transceiver 1610, where the third request message includes the SUCI and the second AMF ID;

The AUSF address and the UDM address sent by the first AMF are received through the transceiver 1610, wherein the AUSF address and the UDM address are obtained by the first AMF through the second AMF from the second terminal context through the second AMF, and then obtained through the network storage function NRF based on the SUPI.

Optionally, the processor 1600 is further configured to:

Sending, through the transceiver 1610, a fourth request message for requesting first subscription data and second subscription data to the UDM corresponding to the UDM address, where the first subscription data is the subscription data selected by the AMF, the second subscription data is the subscription data selected by the SMF, and the fourth request message includes the UE ID or the SUCI;

Perform AMF selection based on the first subscription data returned by the UDM to determine the selected first AMF;

Perform SMF selection based on the second subscription data returned by the UDM to determine the selected first SMF.

Optionally, the transceiver 1610 is further configured to:

Send a registration request message to the first AMF, the registration request message including: SUCI, a first service fast establishment indication, the AUSF address, the UDM address and the selected first SMF address, the first service fast establishment indication is used to instruct the first AMF to perform the registration process and the PDU session establishment process in parallel;

Receive the first indication information sent by the first AMF, where the first indication information is used to indicate that the registration is complete, and the registration request message is used by the first AMF to obtain the access and mobility AM policy.

Optionally, the transceiver 1610 is further configured to:

Send a PDU session establishment request message to the first SMF, where the PDU session establishment request message includes SUCI, a second service fast establishment indication, the AUSF address, the UDM address and the selected first AMF address, and the second service fast establishment indication is used to instruct the first SMF that the PDU session establishment process and the registration process are executed in parallel;

Receive second indication information sent by the first SMF, where the second indication information is used to indicate that the PDU session establishment is complete, and the PDU session establishment request message is used by the first SMF to establish an N4 session with a user plane function UPF selected by the first SMF;

Send a PDU session establishment completion confirmation message to the first SMF.

Optionally, the transceiver 1610 is further configured to:

Sending third indication information to the terminal, where the third indication information is used to indicate whether the first base station itself supports a capability of quickly establishing a service.

Optionally, the third indication information is carried in system information, and the system information also includes a list of services that the network allows to use the fast service establishment method.

Optionally, the transceiver 1610 is further configured to:

Receiving fourth indication information sent by the terminal, where the fourth indication information is used to instruct the terminal to use a fast service establishment mode; or.

The fifth indication information sent by the terminal is received, where the fifth indication information is used to indicate a terminal preference, and the terminal preference includes at least one of the following:

Whether the terminal prefers to use a fast service establishment mode;

Terminal services that are quickly established using services;

Use the restriction information established quickly by the business.

Optionally, the fourth indication information is carried in a radio resource control RRC establishment request message; and the fifth indication information is carried in terminal auxiliary information.

Optionally, the service fast establishment request message is carried in an RRC establishment completion message.

The base station of the embodiment of the present invention receives a service rapid establishment request message sent by a terminal, wherein the service rapid establishment request message is used to request simultaneous execution of registration and protocol data unit (PDU) session establishment; obtains an authentication service function AUSF address and a unified data management (UDM) address based on the service rapid establishment request message, wherein the AUSF address is used for security authentication in the registration process and security authentication in the PDU session establishment process; determines the selected first access and mobility management function AMF and first session management function SMF based on the UDM address; executes the registration process according to the first AMF, and executes the PDU session establishment process according to the first SMF, so that through the above processing, the registration process and the PDU session establishment process can be executed synchronously, thereby realizing the rapid establishment of the service channel, avoiding unnecessary AMF forwarding steps, and reducing signaling overhead.

In order to better achieve the above objectives, as shown in FIG. 17, an embodiment of the present invention further provides an AMF, where the AMF is a first AMF, including a processor 1700 and a transceiver 1710, where the transceiver 1710 receives and sends data under the control of the processor, and the processor 1700 is used to perform the following operations:

Receiving, by a transceiver, a registration request message sent by a first base station, the registration request message including: a first service fast establishment indication and registration parameter information;

Based on the registration request message, executing a registration process;

Among them, the first service fast establishment indication is used to instruct the first AMF to execute the registration process and PDU session establishment process in parallel; the registration parameter information is obtained by the first base station based on the service fast establishment request message sent by the terminal, and the service fast establishment request message is used to request the simultaneous execution of registration and protocol data unit PDU session establishment.

Optionally, the registration parameter information includes: a contract hidden identifier SUCI, an authentication service function AUSF address, a unified data management UDM address and a first SMF address selected by the first base station.

Optionally, the service fast establishment request message includes a first Hypertext Transfer Protocol HTTP request message and a second HTTP request message, wherein the first HTTP request message is used to request registration, and the second HTTP request message is used to request protocol data unit PDU session establishment.

Optionally, the service fast establishment request message includes at least one of the following:

A terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, and the second base station is an original base station providing services for the terminal;

SUCI;

The second access and mobility management function AMF ID, the second AMF is the original AMF that provides services for the terminal.

Optionally, the processor 1700 is further configured to:

Receiving, through the transceiver 1710, a third request message sent by the first base station for requesting to obtain the AUSF address and the UDM address, where the third request message includes the SUCI and the second AMF ID, where the second AMF is the original AMF providing services for the terminal;

Obtaining, through the second AMF, a second terminal context;

Acquire a subscription permanent identity SUPI of the terminal from the second terminal context;

According to SUPI, the AUSF address and the UDM address are obtained through a network storage function NRF; and the AUSF address and the UDM address are sent to the first base station through the transceiver 1710.

Optionally, the processor 1700 is further configured to:

Obtain the mobility management context through the second AMF;

According to the AUSF address, the security authentication related to registration is performed between the AUSF and the terminal; and the security authentication related to registration is performed between the terminal;

According to the UDM address, the first AMF is registered as the AMF providing services for the terminal through the UDM, and the subscription data related to access and mobility AM is obtained;

Select the policy control function PCF according to the contract data related to AM, and obtain the AM policy through the selected PCF;

The transceiver 1710 sends first indication information to the first base station, where the first indication information is used to indicate that the registration is completed.

Optionally, the transceiver 1710 is further configured to:

A first notification message for notifying the completion of registration is sent to the first SMF through the first SMF address, where the first notification message includes a terminal identifier assigned by the first AMF to the terminal.

Optionally, the processor 1700 is further configured to:

Receiving, through the transceiver 1710, a second notification message sent by the first SMF for notifying that the PDU session establishment is complete, wherein the second notification message includes a terminal identifier allocated by the first SMF to the terminal;

The terminal identifier locally allocated to the terminal is associated with the terminal identifier allocated to the terminal by the first SMF.

The AMF of the embodiment of the present invention receives a registration request message sent by a first base station, wherein the registration request message includes: a first service quick establishment indication and registration parameter information; based on the registration request message, a registration process is executed, wherein the first service quick establishment indication is used to instruct the first AMF to execute the registration process and the PDU session establishment process in parallel; the registration parameter information is obtained by the first base station based on a service quick establishment request message sent by the terminal, and the service quick establishment request message is used to request to execute registration and protocol data unit PDU session establishment at the same time, so that the AMF side executes the registration process while the SMF side executes the PDU session establishment process, thereby realizing the rapid establishment of the service channel and avoiding unnecessary AMF forwarding steps, reducing signaling overhead, and preventing AMF from becoming a forwarding bottleneck.

As shown in FIG. 18, an embodiment of the present invention further provides an SMF, where the SMF is a first AMF, including a processor 1800 and a transceiver 1810, where the transceiver 1810 receives and sends data under the control of the processor, and the processor 1800 is used to perform the following operations:

Receiving, through the transceiver, a PDU session establishment request message sent by the first base station, wherein the PDU session establishment request message includes a second service fast establishment indication and session establishment parameter information;

Based on the PDU session establishment request message, execute the PDU session establishment process;

Among them, the second service fast establishment indication is used to instruct the first SMF to execute the PDU session establishment process and registration process in parallel; the session establishment parameter information is obtained by the first base station based on the service fast establishment request message sent by the terminal, and the service fast establishment request message is used to request the simultaneous execution of registration and protocol data unit PDU session establishment.

Optionally, the session establishment parameter information includes: a contract hidden identifier SUCI, an authentication service function AUSF address, a unified data management UDM address and a first AMF address selected by the first base station.

Optionally, the service fast establishment request message includes a first Hypertext Transfer Protocol HTTP request message and a second HTTP request message, wherein the first HTTP request message is used to request registration, and the second HTTP request message is used to request protocol data unit PDU session establishment.

Optionally, the service fast establishment request message includes at least one of the following:

A terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, and the second base station is an original base station providing services for the terminal;

SUCI;

The second access and mobility management function AMF ID, the second AMF is the original AMF that provides services for the terminal.

Optionally, the processor 1800 is further configured to:

Obtain the PDU session context through the second SMF, where the second SMF is the original SMF providing services for the terminal;

According to the AUSF address, the security authentication related to the PDU session is performed between the AUSF and the terminal; and the security authentication related to the PDU session is performed between the terminal;

According to the UDM address, the first SMF is registered as the SMF providing services for the terminal through the UDM, and the subscription data related to the session management SM is obtained;

Select the policy control function PCF according to the SM-related subscription data, and obtain the policy control and charging PCC policy through the selected PCF;

Select the user plane function UPF according to the PCC policy and establish an N4 session with the selected UPF.

Optionally, the transceiver 1810 is further configured to:

Sending second indication information to the first base station, where the second indication information is used to indicate that the PDU session establishment is complete;

Receive a PDU session establishment completion confirmation message sent by the first base station.

Optionally, the processor 1800 is further configured to:

Receiving, through the transceiver 1810, a first notification message sent by the first AMF for notifying that registration is complete, where the first notification message includes a terminal identifier allocated by the first AMF to the terminal;

Associate the terminal identifier locally allocated to the terminal with the terminal identifier allocated to the terminal by the first AMF.

Optionally, the transceiver 1810 is further configured to:

A second notification message for notifying that the PDU session establishment is completed is sent to the first AMF through the first AMF address, and the second notification message includes the terminal identifier assigned by the first SMF to the terminal.

The SMF of the embodiment of the present invention receives a PDU session establishment request message sent by a first base station, wherein the PDU session establishment request message includes a second service fast establishment indication and session establishment parameter information; based on the PDU session establishment request message, a PDU session establishment process is executed; wherein the second service fast establishment indication is used to instruct the first SMF to execute the PDU session establishment process and the registration process in parallel; the session establishment parameter information is obtained by the first base station based on a service fast establishment request message sent by the terminal, wherein the service fast establishment request message is used to request the simultaneous execution of registration and protocol data unit PDU session establishment, so that the SMF side executes the PDU session establishment process while the AMF side executes the registration process, thereby realizing the rapid establishment of the service channel, avoiding unnecessary AMF forwarding steps, and reducing signaling overhead.

An embodiment of the present invention also provides a base station, which is a first base station, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the various processes in the service establishment method embodiment described above are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

An embodiment of the present invention also provides an AMF, which is a first AMF, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the various processes in the service establishment method embodiment described above are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

An embodiment of the present invention also provides an SMF, which is a first SMF, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the various processes in the business establishment method embodiment described above are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

The embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, each process in the above-mentioned service establishment method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. The computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-readable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program code.

The present application is described with reference to the flowchart and/or block diagram of the method, device (system) and computer program product according to the embodiment of the present application. It should be understood that each process and/or box in the flowchart and/or block diagram, and the combination of the process and/or box in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processing machine or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for realizing the function specified in one process or multiple processes and/or one box or multiple boxes in the flowchart.

These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable storage medium produce a paper product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

These computer program instructions may also be loaded onto a computer or other programmable data processing device, causing the computer or other programmable device to execute a series of operating steps to produce computer-implemented processing, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims (36)

1. A service establishment method performed by a first base station, comprising:

Receiving a service quick establishment request message sent by a terminal, wherein the service quick establishment request message is used for requesting to simultaneously execute registration and protocol data unit PDU session establishment;

Based on the service quick establishment request message, acquiring an authentication service function AUSF address and a unified data management UDM address, wherein the AUSF address is used for security authentication in a registration process and security authentication in a PDU session establishment process;

Determining a selected first access and mobility management function AMF and a first session management function SMF based on the UDM address;

and executing a registration procedure according to the first AMF, and executing a PDU session establishment procedure according to the first SMF.

2. The method of claim 1, wherein the service fast setup request message comprises a first hypertext transfer protocol, HTTP, request message and a second HTTP request message, wherein the first HTTP request message is used to request registration and the second HTTP request message is used to request protocol data unit, PDU, session establishment.

3. The method of claim 1, wherein the service quick setup request message comprises at least one of:

A terminal identifier (UE ID) is distributed to the terminal by a second base station, wherein the second base station is a primary base station for providing service for the terminal;

subscription hidden identifier SUCI;

And a second AMF ID, which is the original AMF for providing services for the terminal.

4. A method according to claim 3, wherein said obtaining an authentication service function AUSF address and a unified data management UDM address based on said traffic fast setup request message comprises:

Acquiring a first terminal context through a Radio Access Network (RAN) according to the UE ID;

And obtaining AUSF addresses and UDM addresses from the first terminal context.

5. A method according to claim 3, wherein said obtaining an authentication service function AUSF address and a unified data management UDM address based on said traffic fast setup request message comprises:

Performing AMF selection based on the local configuration and sending a third request message to the selected first AMF requesting acquisition of AUSF address and UDM address, the third request message comprising SUCI and the second AMF ID;

And receiving AUSF addresses and UDM addresses sent by the first AMF, wherein the AUSF addresses and the UDM addresses are obtained by the first AMF through a network storage function NRF based on SUPI after the first AMF obtains a subscription permanent identifier SUPI of the terminal from a second terminal context through the second AMF.

6. A method according to claim 3, characterized in that said determining the selected first access and mobility management function AMF and first session management function SMF based on the UDM address comprises:

Sending a fourth request message for requesting first subscription data and second subscription data to the UDM corresponding to the UDM address, wherein the first subscription data is AMF (advanced mobile unit) selection related subscription data, the second subscription data is SMF selection related subscription data, and the fourth request message comprises UE (user equipment) ID (user equipment) or SUCI;

Performing AMF selection based on the first subscription data returned by the UDM, and determining a selected first AMF;

And executing SMF selection based on the second subscription data returned by the UDM, and determining the selected first SMF.

7. The method of claim 3, wherein the executing the flow according to the first AMF comprises:

Transmitting a registration request message to the first AMF, the registration request message comprising: SUCI, a first service fast establishment instruction, the AUSF address, the UDM address and the selected first SMF address, where the first service fast establishment instruction is used to instruct that the registration process of the first AMF is executed in parallel with the PDU session establishment process;

and receiving first indication information sent by the first AMF, wherein the first indication information is used for indicating that the registration is completed, and the registration request message is used for the first AMF to acquire an access and mobility AM strategy.

8. The method of claim 3 wherein said performing a PDU session establishment procedure in accordance with the first SMF comprises:

Transmitting a PDU session establishment request message to the first SMF, wherein the PDU session establishment request message comprises SUCI, a second service quick establishment instruction, the AUSF address, the UDM address and a selected first AMF address, and the second service quick establishment instruction is used for indicating that the PDU session establishment flow of the first SMF is executed in parallel with a registration flow;

Receiving second indication information sent by the first SMF, wherein the second indication information is used for indicating PDU (protocol data unit) session establishment completion, and the PDU session establishment request message is used for establishing an N4 session between the first SMF and a user plane function UPF selected by the first SMF;

And sending a PDU session establishment completion confirmation message to the first SMF.

9. The method of claim 1, wherein prior to receiving the service quick set-up request message sent by the terminal, the method further comprises:

And sending third indication information to the terminal, wherein the third indication information is used for indicating whether the first base station supports the capability of quickly establishing the service or not.

10. The method of claim 9, wherein the third indication information is carried in system information, and the system information further includes a service list in which the network allows a fast set-up mode of the service to be used.

11. The method of claim 1, wherein prior to receiving the service quick set-up request message sent by the terminal, the method further comprises:

Receiving fourth indication information sent by a terminal, wherein the fourth indication information is used for indicating the terminal to use a service quick establishment mode; or alternatively

Receiving fifth indication information sent by a terminal, wherein the fifth indication information is used for indicating terminal preference, and the terminal preference comprises at least one of the following steps:

whether the terminal tends to use a service quick establishment mode or not;

Terminal service which is quickly established by using service;

and using the limit information of the quick establishment of the service.

12. The method of claim 11, wherein the fourth indication information is carried in a radio resource control, RRC, establishment request message; the fifth indication information is carried in terminal auxiliary information.

13. The method of claim 1, wherein the service fast setup request message is carried in an RRC setup complete message.

14. A service establishment method performed by a first AMF, comprising:

receiving a registration request message sent by a first base station, wherein the registration request message comprises: the first service rapidly establishes indication and registration parameter information;

executing a registration process based on the registration request message;

The first service quick establishment instruction is used for indicating that the registration flow of the first AMF is executed in parallel with the PDU session establishment flow; the registration parameter information is obtained by the first base station based on a service quick establishment request message sent by a terminal, wherein the service quick establishment request message is used for requesting to simultaneously execute registration and protocol data unit PDU session establishment.

15. The method of claim 14, wherein the registration parameter information comprises: subscription hidden identification SUCI, authentication service function AUSF address, unified data management UDM address and first SMF address selected by the first base station.

16. The method of claim 14, wherein the service fast setup request message comprises a first hypertext transfer protocol, HTTP, request message and a second HTTP request message, wherein the first HTTP request message is used to request registration and the second HTTP request message is used to request protocol data unit, PDU, session establishment.

17. The method of claim 14, wherein the service quick setup request message comprises at least one of:

A terminal identifier (UE ID) is distributed to the terminal by a second base station, wherein the second base station is a primary base station for providing service for the terminal;

SUCI；

And a second access and mobility management function AMF ID, the second AMF being the original AMF serving the terminal.

18. The method of claim 14, wherein prior to receiving the registration request message sent by the first base station, the method further comprises:

Receiving a third request message sent by a first base station and used for requesting to acquire AUSF addresses and UDM addresses, wherein the third request message comprises SUCI and a second AMF ID, and the second AMF is an original AMF for providing services for a terminal;

Obtaining a second terminal context through the second AMF;

Acquiring a subscription permanent identifier SUPI of the terminal from the second terminal context;

Acquiring the AUSF address and the UDM address through a network storage function NRF according to SUPI; and sending the AUSF address and the UDM address to the first base station.

19. The method of claim 15, wherein the performing a registration procedure based on the registration request message comprises:

acquiring a mobility management context through a second AMF;

Performing registration-related security authentication with AUSF according to AUSF addresses; and performing security authentication related to registration with the terminal;

registering a first AMF as an AMF for providing service for a terminal through the UDM according to the UDM address, and acquiring subscription data related to access and mobility AM;

selecting a policy control function PCF according to the AM related subscription data, and obtaining an AM policy through the selected PCF;

And sending first indication information to the first base station, wherein the first indication information is used for indicating that registration is completed.

20. The method of claim 15, wherein the method further comprises:

and sending a first notification message for notifying the completion of registration to the first SMF through the first SMF address, wherein the first notification message comprises a terminal identifier distributed by the first AMF for the terminal.

21. The method of claim 14, wherein the method further comprises:

Receiving a second notification message sent by a first SMF and used for notifying completion of PDU session establishment, wherein the second notification message comprises a terminal identifier distributed by the first SMF for a terminal;

And associating the terminal identifier locally distributed for the terminal with the terminal identifier distributed for the terminal by the first SMF.

22. A service establishment method performed by a first SMF, comprising:

receiving a PDU (protocol data unit) session establishment request message sent by a first base station, wherein the PDU session establishment request message comprises a second service quick establishment instruction and session establishment parameter information;

Executing PDU session establishment flow based on the PDU session establishment request message;

The second service quick establishment instruction is used for indicating that the PDU session establishment flow of the first SMF is executed in parallel with the registration flow; the session establishment parameter information is obtained by the first base station based on a service quick establishment request message sent by a terminal, wherein the service quick establishment request message is used for requesting to simultaneously execute registration and protocol data unit PDU session establishment.

23. The method of claim 22, wherein the session establishment parameter information comprises: subscription hidden identification SUCI, authentication service function AUSF address, unified data management UDM address and first AMF address selected by the first base station.

24. The method of claim 22, wherein the service fast setup request message comprises a first hypertext transfer protocol, HTTP, request message and a second HTTP request message, wherein the first HTTP request message is used to request registration and the second HTTP request message is used to request protocol data unit, PDU, session establishment.

25. The method of claim 22, wherein the service quick setup request message comprises at least one of:

A terminal identifier (UE ID) is distributed to the terminal by a second base station, wherein the second base station is a primary base station for providing service for the terminal;

SUCI；

And a second access and mobility management function AMF ID, the second AMF being the original AMF serving the terminal.

26. The method of claim 23, wherein performing a PDU session establishment procedure based on the PDU session establishment request message comprises:

Acquiring a PDU session context through a second SMF, wherein the second SMF is an original SMF for providing service for a terminal;

According to AUSF address, carrying out PDU session related security authentication with AUSF; and carrying out PDU session related security authentication with the terminal;

Registering the first SMF as an SMF for providing service for the terminal through the UDM according to the UDM address, and acquiring subscription data related to the session management SM;

Selecting policy control function PCF according to SM related subscription data, and obtaining policy control and charging PCC policy through the selected PCF;

and selecting a user plane function UPF according to the PCC policy, and establishing an N4 session with the selected UPF.

27. The method of claim 26, wherein the method further comprises:

Transmitting second indication information to the first base station, wherein the second indication information is used for indicating that PDU session establishment is completed;

And receiving a PDU session establishment completion confirmation message sent by the first base station.

28. The method of claim 22, wherein the method further comprises:

Receiving a first notification message sent by a first AMF for notifying that registration is completed, wherein the first notification message comprises a terminal identifier allocated by the first AMF to the terminal;

and associating the terminal identifier locally distributed for the terminal with the terminal identifier distributed for the terminal by the first AMF.

29. The method of claim 23, wherein the method further comprises:

and sending a second notification message for notifying completion of PDU session establishment to the first AMF through the first AMF address, wherein the second notification message comprises a terminal identifier allocated by the first SMF to the terminal.

30. A service creation apparatus, performed by a first base station, comprising:

the first receiving module is used for receiving a service quick establishment request message sent by the terminal, wherein the service quick establishment request message is used for requesting to simultaneously execute registration and protocol data unit PDU session establishment;

the first obtaining module is configured to obtain, based on the service quick establishment request message, an authentication service function AUSF address and a unified data management UDM address, where the AUSF address is used for security authentication in a registration procedure and security authentication in a PDU session establishment procedure;

a first processing module for determining a selected first access and mobility management function AMF and a first session management function SMF based on the UDM address;

and the service establishment module is used for executing a registration process according to the first AMF and executing a PDU session establishment process according to the first SMF.

31. A service creation apparatus, executed by a first AMF, comprising:

the second receiving module is configured to receive a registration request message sent by the first base station, where the registration request message includes: the first service rapidly establishes indication and registration parameter information;

the registration module is used for executing a registration process based on the registration request message;

The first service quick establishment instruction is used for indicating that the registration flow of the first AMF is executed in parallel with the PDU session establishment flow; the registration parameter information is obtained by the first base station based on a service quick establishment request message sent by a terminal, wherein the service quick establishment request message is used for requesting to simultaneously execute registration and protocol data unit PDU session establishment.

32. A service creation apparatus, performed by a first SMF, comprising:

A third receiving module, configured to receive a PDU session establishment request message sent by a first base station, where the PDU session establishment request message includes a second service fast establishment instruction and session establishment parameter information;

A session establishment module, configured to execute a PDU session establishment procedure based on the PDU session establishment request message;

The second service quick establishment instruction is used for indicating that the PDU session establishment flow of the first SMF is executed in parallel with the registration flow; the session establishment parameter information is obtained by the first base station based on a service quick establishment request message sent by a terminal, wherein the service quick establishment request message is used for requesting to simultaneously execute registration and protocol data unit PDU session establishment.

33. A base station, the base station being a first base station, comprising a processor and a transceiver, the transceiver receiving and transmitting data under control of the processor, the processor being configured to:

receiving a service quick establishment request message sent by a terminal through a transceiver, wherein the service quick establishment request message is used for requesting to simultaneously execute registration and protocol data unit PDU session establishment;

Based on the service quick establishment request message, acquiring an authentication service function AUSF address and a unified data management UDM address, wherein the AUSF address is used for security authentication in a registration process and security authentication in a PDU session establishment process;

Determining a selected first access and mobility management function AMF and a first session management function SMF based on the UDM address;

and executing a registration procedure according to the first AMF, and executing a PDU session establishment procedure according to the first SMF.

34. An AMF, the AMF being a first AMF comprising a processor and a transceiver, the transceiver receiving and transmitting data under control of the processor, the processor being configured to:

Receiving, by a transceiver, a registration request message sent by a first base station, the registration request message including: the first service rapidly establishes indication and registration parameter information;

executing a registration process based on the registration request message;

The first service quick establishment instruction is used for indicating that the registration flow of the first AMF is executed in parallel with the PDU session establishment flow; the registration parameter information is obtained by the first base station based on a service quick establishment request message sent by a terminal, wherein the service quick establishment request message is used for requesting to simultaneously execute registration and protocol data unit PDU session establishment.

35. An SMF, the SMF being a first SMF comprising a processor and a transceiver, the transceiver receiving and transmitting data under control of the processor, the processor being configured to:

Receiving a PDU (protocol data unit) session establishment request message sent by a first base station through a transceiver, wherein the PDU session establishment request message comprises a second service quick establishment instruction and session establishment parameter information;

Executing PDU session establishment flow based on the PDU session establishment request message;

The second service quick establishment instruction is used for indicating that the PDU session establishment flow of the first SMF is executed in parallel with the registration flow; the session establishment parameter information is obtained by the first base station based on a service quick establishment request message sent by a terminal, wherein the service quick establishment request message is used for requesting to simultaneously execute registration and protocol data unit PDU session establishment.

36. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the service creation method according to any of claims 1 to 13, or the steps of the service creation method according to any of claims 14 to 21, or the steps of the service creation method according to any of claims 22 to 29.