Business establishment method, device, equipment and medium

Abstract

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

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a service establishment method, device, equipment and medium. Background Art

[0002] See also Figure 1A and Figure 1B In traditional network architectures, the control plane connection between the Radio Access Network (RAN) and the Core Network (CN) is the only N2. All control plane Non-Access Stratum (NAS) messages sent by User Equipment (UE) must be forwarded by the Access and Mobility Management Function (AMF), and the Protocol Data Unit (PDU) session establishment process occurs after the registration process. This results in low service establishment efficiency and high signaling overhead. Summary of the Invention

[0003] The object of the present invention is to provide a service establishment method, apparatus, device and medium to solve the problems of low efficiency and high signaling overhead in existing service establishment.

[0004] In order to achieve the above-mentioned object, in a first aspect, the present invention provides a service establishment method, which is executed by a first base station and includes:

[0005] receiving 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;

[0006] Based on the business 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;

[0007] Based on the UDM address, determine the selected first access and mobility management function AMF and the first session management function SMF;

[0008] The registration process is performed according to the first AMF, and the PDU session establishment process is performed according to the first SMF.

[0009] The service rapid 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.

[0010] The service rapid establishment request message includes at least one of the following:

[0011] a terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, where the second base station is an original base station providing services for the terminal;

[0012] Sign the hidden logo SUCI;

[0013] Second AMF ID: The second AMF is the original AMF that provides services to the terminal.

[0014] The process of quickly establishing a request message based on the service to obtain the authentication service function AUSF address and the unified data management UDM address includes:

[0015] Obtaining a first terminal context through a radio access network RAN ​​according to the UE ID;

[0016] The AUSF address and UDM address are obtained from the first terminal context.

[0017] The process of quickly establishing a request message based on the service to obtain the authentication service function AUSF address and the unified data management UDM address includes:

[0018] Perform AMF selection based on local configuration, and send a third request message for requesting the AUSF address and UDM address to the selected first AMF, where the third request message includes the SUCI and the second AMF ID;

[0019] Receive the AUSF address and 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 subscription permanent identification SUPI of the terminal, and then obtained through the network storage function NRF based on the SUPI.

[0020] The determining, based on the UDM address, of the selected first access and mobility management function AMF and the first session management function SMF includes:

[0021] 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 subscription data selected by the AMF, and the second subscription data is subscription data selected by the SMF, and the fourth request message includes the UE ID or SUCI;

[0022] Perform AMF selection based on the first subscription data returned by the UDM, and determine the selected first AMF;

[0023] Perform SMF selection based on the second subscription data returned by the UDM to determine the selected first SMF.

[0024] The performing of the registration process according to the first AMF includes:

[0025] 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. 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.

[0026] 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.

[0027] The executing of the PDU session establishment process according to the first SMF includes:

[0028] 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. 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;

[0029] 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;

[0030] Send a PDU session establishment completion confirmation message to the first SMF.

[0031] Before receiving the service fast establishment request message sent by the terminal, the method further includes:

[0032] 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.

[0033] 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.

[0034] Before receiving the service fast establishment request message sent by the terminal, the method further includes:

[0035] 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

[0036] Receive fifth indication information sent by the terminal, where the fifth indication information is used to indicate a terminal preference, where the terminal preference includes at least one of the following:

[0037] Whether the terminal prefers to use a fast service establishment mode;

[0038] Terminal services that are quickly established using services;

[0039] Use the restriction information created quickly by the business.

[0040] The fourth indication information is carried in a radio resource control RRC establishment request message; and the fifth indication information is carried in terminal assistance information.

[0041] The service fast establishment request message is carried in the RRC establishment completion message.

[0042] In a second aspect, the present invention also provides a service establishment method, which is performed by a first AMF, comprising:

[0043] receiving 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;

[0044] Executing a registration process based on the registration request message;

[0045] 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.

[0046] Among them, the registration parameter information includes: contract hidden identifier SUCI, authentication service function AUSF address, unified data management UDM address and the first SMF address selected by the first base station.

[0047] The service rapid 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.

[0048] The service rapid establishment request message includes at least one of the following:

[0049] a terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, where the second base station is an original base station providing services for the terminal;

[0050] SUCI;

[0051] Second access and mobility management function AMF ID, the second AMF is the original AMF that provides services for the terminal.

[0052] Before receiving the registration request message sent by the first base station, the method further includes:

[0053] 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;

[0054] Obtaining a second terminal context through the second AMF;

[0055] Acquire the subscription permanent identity SUPI of the terminal from the second terminal context;

[0056] 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.

[0057] The performing of the registration process based on the registration request message includes:

[0058] Obtain the mobility management context through the second AMF;

[0059] According to the AUSF address, security authentication related to registration is performed between the AUSF and the terminal; and security authentication related to registration is performed between the terminal;

[0060] 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;

[0061] Select the policy control function PCF based on the AM-related contract data, and obtain the AM policy through the selected PCF;

[0062] First indication information is sent to the first base station, where the first indication information is used to indicate that registration is completed.

[0063] The method further comprises:

[0064] 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 the terminal identifier assigned by the first AMF to the terminal.

[0065] The method further comprises:

[0066] 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;

[0067] The terminal identifier locally allocated to the terminal is associated with the terminal identifier allocated to the terminal by the first SMF.

[0068] In a third aspect, the present invention further provides a service establishment method, which is executed by a first SMF, comprising:

[0069] 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;

[0070] Execute a PDU session establishment process based on the PDU session establishment request message;

[0071] 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.

[0072] Among them, the session establishment parameter information includes: subscription hidden identifier SUCI, authentication service function AUSF address, unified data management UDM address and the first AMF address selected by the first base station.

[0073] The service rapid 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.

[0074] The service rapid establishment request message includes at least one of the following:

[0075] a terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, where the second base station is an original base station providing services for the terminal;

[0076] SUCI;

[0077] Second access and mobility management function AMF ID, the second AMF is the original AMF that provides services for the terminal.

[0078] The executing of the PDU session establishment process based on the PDU session establishment request message includes:

[0079] Obtain the PDU session context through the second SMF, where the second SMF is the original SMF providing services to the terminal;

[0080] Based on the AUSF address, security authentication related to the PDU session is performed between the AUSF and the terminal; and security authentication related to the PDU session is performed between the terminal and the terminal;

[0081] 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;

[0082] Select the policy control function (PCF) based on the SM-related subscription data, and obtain the policy control and charging PCC policy through the selected PCF;

[0083] Select the user plane function UPF according to the PCC policy and establish an N4 session with the selected UPF.

[0084] The method further comprises:

[0085] 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;

[0086] Receive a PDU session establishment completion confirmation message sent by the first base station.

[0087] The method further comprises:

[0088] 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;

[0089] Associate the terminal identifier locally allocated to the terminal with the terminal identifier allocated to the terminal by the first AMF.

[0090] The method further comprises:

[0091] Through the first AMF address, a second notification message for notifying the first AMF of the completion of the PDU session establishment is sent, where the second notification message includes the terminal identifier assigned by the first SMF to the terminal.

[0092] In a fourth aspect, the present invention further provides a service establishment device, executed by a first base station, comprising:

[0093] A first receiving module 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;

[0094] The first acquisition module is used to quickly establish a request message based on the service, 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;

[0095] A first processing module is used to determine the selected first access and mobility management function AMF and first session management function SMF based on the UDM address;

[0096] The service establishment module is used to execute the registration process according to the first AMF and the PDU session establishment process according to the first SMF.

[0097] In a fifth aspect, the present invention further provides a service establishment device, executed by a first AMF, comprising:

[0098] A second receiving module 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;

[0099] A registration module, configured to execute a registration process based on the registration request message;

[0100] 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.

[0101] In a sixth aspect, the present invention further provides a service establishment device, which is executed by a first SMF and includes:

[0102] A third receiving module is configured 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;

[0103] A session establishment module, configured to execute a PDU session establishment process based on the PDU session establishment request message;

[0104] 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.

[0105] 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:

[0106] Receiving, through the transceiver, a service fast establishment request message sent by the terminal, wherein the service fast establishment request message is used to request simultaneous execution of registration and protocol data unit (PDU) session establishment;

[0107] Based on the business 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;

[0108] Based on the UDM address, determine the selected first access and mobility management function AMF and the first session management function SMF;

[0109] The registration process is performed according to the first AMF, and the PDU session establishment process is performed according to the first SMF.

[0110] In an eighth aspect, the present invention further provides an AMF, wherein the AMF is a first AMF, including 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:

[0111] Receiving, through the transceiver, 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;

[0112] Executing a registration process based on the registration request message;

[0113] 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.

[0114] In a ninth aspect, the present invention further provides an SMF, wherein the SMF is a first SMF, including 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:

[0115] Receiving, through the transceiver, 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;

[0116] Execute a PDU session establishment process based on the PDU session establishment request message;

[0117] 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.

[0118] 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 described in the first aspect above, or implements the steps in the service establishment method described in the second aspect above, or implements the steps in the service establishment method described in the third aspect above.

[0119] The above technical solution of the present invention has at least the following beneficial effects:

[0120] 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 the 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

[0121] Figure 1A One of the network architecture diagrams representing the existing NAS model;

[0122] Figure 1B The second diagram of the network architecture of the existing NAS model;

[0123] Figure 2 A schematic diagram showing the existing registration process;

[0124] Figure 3 A schematic diagram showing the process of establishing an existing PDU session;

[0125] Figure 4 A schematic diagram showing the network architecture of a NAS model according to an embodiment of the present invention;

[0126] Figure 5 A schematic diagram showing a flow chart of a service establishment method according to an embodiment of the present invention;

[0127] Figure 6 A schematic diagram illustrating a method 1 for implementing sending indication information by a terminal according to an embodiment of the present invention;

[0128] Figure 7 A schematic diagram showing a second method for implementing a terminal sending indication information according to an embodiment of the present invention;

[0129] Figure 8 One of the schematic diagrams showing the third embodiment of the present invention, in which a terminal sends indication information;

[0130] Figure 9 Schematic diagram 2 showing the embodiment of the present invention using method 3 to implement the terminal sending indication information;

[0131] Figure 10 A second flowchart illustrating a method for establishing a service according to an embodiment of the present invention;

[0132] Figure 11 A third flowchart illustrating a method for establishing a service according to an embodiment of the present invention;

[0133] Figure 12 A fourth flowchart illustrating a method for establishing a service according to an embodiment of the present invention;

[0134] Figure 13 One of the module schematic diagrams showing the service establishment device according to an embodiment of the present invention;

[0135] Figure 14 A second schematic diagram showing a module of a service establishment device according to an embodiment of the present invention;

[0136] Figure 15 A third schematic diagram showing a module of a service establishment device according to an embodiment of the present invention;

[0137] Figure 16 A schematic diagram showing the hardware structure of a base station according to an embodiment of the present invention;

[0138] Figure 17 A schematic diagram showing the hardware structure of the AMF according to an embodiment of the present invention;

[0139] Figure 18 A schematic diagram showing the hardware structure of the SMF according to an embodiment of the present invention. DETAILED DESCRIPTION

[0140] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0141] For easier understanding, see Figure 2 , briefly explain the 5G registration process.

[0142] Registration is the first process performed by a UE after it is powered 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:

[0143] Initial registration: The UE connects to the network after powering on.

[0144] Periodic registration: Connection Management - Idle (CM-IDLE) UE updates the network to show that the UE is still reachable and updates the periodic AMF configuration.

[0145] 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.

[0146] Emergency Registration: This is used only when the UE is registering for emergency services.

[0147] The traditional registration process generally includes the following steps:

[0148] A. The UE sends a NAS registration request to the AMF via the RAN.

[0149] 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, 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.

[0150] 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.

[0151] That is, the new AMF sends Namf_Communication_UEContextTransfer to the old AMF, and the old AMF returns Namf_Communication_UEContextTransfer response to the new AMF.

[0152] If the UE's temporary ID (GUTI) is not known to either the old or new AMF, the new AMF will request the UE to send a SUCI. That is, the new AMF sends an Identity Request to the UE, and the UE returns an Identity Response to the new AMF.

[0153] C. Use 5G Authentication and Key Agreement (AKA) or Extensible Authentication Protocol (EAP) AKA for authentication.

[0154] D. The new AMF tells the old AMF that it is providing services to the UE.

[0155] That is, the new AMF sends Namf_Communication_RegistrationStatusUpdate to the old AMF.

[0156] E. The AMF can also use the Identity Request message to request the UE to send the Permanent Equipment Identifier (PEI). The identity of the mobile equipment ME is checked using the Equipment Identity Register (EIR), i.e. the AMF sends N5g-eir_EquipmentIdentifierCheck_Get to the EIR.

[0157] F. The AMF registers it as the AMF serving the UE under the current access technology through the Unified Data Management (UDM) service. The AMF also requests subscription data and subscribes to subscription data updates through the Nudm_SDM service. The UDM notifies the old AMF that it has been deregistered.

[0158] 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.

[0159] H. If the UE wants to activate the user plane connection for an existing PDU Session, the AMF shall call the Nsmf_PDUSession_UpdataSMContext (PDU Session Update Short Message Context) service operation. If the PDU Session states in the UE and AMF do not match, the AMF shall call the Nsmf_PDUSession_ReleaseSMContext (PDU Session Release Short Message Context) service operation to request the release of these PDU Sessions.

[0160] I. If the registration procedure has been successful so far, the AMF provides the NAS Registration Accept to the UE. The UE sends a NAS Registration Complete message.

[0161] 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.

[0162] See also Figure 3 , briefly explain the 5G PDU session establishment process.

[0163] When the UE wants to create a new PDU session or switch a PDU session between non-3GPP access and 3GPP access, the UE initiates the PDU session establishment procedure. The procedure generally includes the following steps:

[0164] A. The UE sends a 5GSM NAS PDU Session Establishment message to the AMF, which includes the PDU Session ID, the S-NSSAI requested by the Digital Data Network (DNN), and the PDU Session Type. The AMF performs NAS security processing. If the PDU Session Establishment procedure is used to establish a new PDU Session, the AMF selects a new Session Management Function (SMF). The AMF can discover an available SMF to serve the selected DNN and S-NSSAI through the Network Repository Function (NRF).

[0165] B. The AMF forwards the NAS-SM container (including the PDU session establishment message) to the SMF. The SMF obtains the subscription data related to session management from the UDM and subscribes to the update of the subscription data from the UDM.

[0166] C. If secondary authentication is required, SMF performs secondary authentication.

[0167] D. The SMF selects a PCF to establish an SM policy session and obtains initial Policy Control and Charging (PCC) rules. The SMF also selects a UPF, allocates a UE IP address, and establishes an N4 session with the selected UPF.

[0168] E. The SMF sends a 5GSM NAS PDU Session Establishment Accept 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 via the AMF.

[0169] F. The AMF creates and sends an N2 message containing the NAS message (PDU Session Establishment Accept) and the PDU session information for the RAN (GTP-U tunnel information and QoS information). The RAN responds to the AMF with the RAN GTP-U tunnel endpoint information. At this point, the uplink path is ready.

[0170] G. The AMF forwards the PDU session information received from the RAN to the SMF so that the SMF can provide the RAN GTP-U tunnel information to the UPF for downlink forwarding. At this point, the downlink path is also ready.

[0171] H. SMF registers itself in UDM as the SMF serving this PDU session ID.

[0172] As mentioned above, in the existing 5G network, the control plane connection between RAN and CN is only N2. All control plane NAS messages sent by UE need to be forwarded by AMF, which will result in large signaling overhead. In addition, the PDU session establishment process occurs after the registration process, so the PDU session establishment time is relatively long, which is mainly limited by Figure 1A and Figure 1B The NAS model shown in the figure. This means that other NAS procedures can only be executed when a NAS-MM context is established between the UE and the AMF and the AMF uses NAS messages for secure exchange. This results in low service establishment efficiency.

[0173] In order to solve the above problems, the present invention provides a service establishment method, device, equipment and medium, wherein the method and device are based on the same application concept. Since the principles of solving the problems by the method and device are similar, the implementation of the device and method can refer to each other, and the repeated parts will not be repeated.

[0174] After the N2 interface is service-oriented, RAN services can communicate directly with CN services through the service-oriented interface without AMF forwarding. Accordingly, the NAS model can also be changed, that is, the NSA model provided by the embodiment of the present invention. Figure 4NAS messages between the UE and CN can be independent of NAS-MM and can instead be transparently transmitted through the RAN to other CN NFs (e.g., SMF, PCF, Short Message Service Function (SMSF), and Location Management Function (LMF)). The NSA model provided by the embodiments of the present invention also offers the advantage that, because each NAS connection has its own security context (keys, integrity, and cryptographic algorithms), the destruction of a single NAS connection will not affect other NAS connections, thus reducing the correlation between NAS messages. The methods of the embodiments of the present invention are applicable to this NAS model.

[0175] like Figure 5 FIG. 1 is a flow chart of a service establishment method provided by an embodiment of the present invention. The method is executed by a first base station. The method may include:

[0176] 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;

[0177] 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.

[0178] 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.

[0179] 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.

[0180] Optionally, the service fast establishment request message includes at least one of the following:

[0181] a terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, where the second base station is an original base station providing services for the terminal;

[0182] Sign the hidden logo SUCI;

[0183] Second AMF ID: The second AMF is the original AMF that provides services to the terminal.

[0184] 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 of the service rapid establishment request message. Specific implementation details are shown in the following embodiments.

[0185] Step 503: Determine the selected first access and mobility management function AMF and first session management function SMF based on the UDM address;

[0186] Specifically, the UDM corresponding to the UDM address can be used to obtain the AMF selection-related contract data and the SMF selection-related contract data, and the AMF and SMF are selected based on the above contract data to determine the selected first AMF and first SMF. For details on the specific implementation, see the following embodiment.

[0187] Step 504: Execute a registration process according to the first AMF and execute a PDU session establishment process according to the first SMF.

[0188] 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.

[0189] In an optional embodiment, the above step 502 may specifically include:

[0190] 1-1, obtaining a first terminal context through a radio access network RAN ​​according to the UE ID;

[0191] The UE ID here is assigned by the second base station to the terminal. It should be noted that if it corresponds to a base station handover scenario, the second base station is the source base station that previously provided service to the terminal, and the first base station is the target base station after the handover. If it is not a base station handover scenario, the second base station is the first base station.

[0192] 1-2. Obtain the AUSF address and UDM address from the first terminal context.

[0193] Here, the first terminal context may be understood as a RAN-side UE context.

[0194] In another optional embodiment, the above step 502 may specifically include:

[0195] 2-1, perform AMF selection based on local configuration, and send a third request message for requesting the AUSF address and UDM address to the selected first AMF, where the third request message includes the SUCI and the second AMF ID;

[0196] 2-2. Receive the AUSF address and 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.

[0197] 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.

[0198] In an optional embodiment, the above step 503 may specifically include:

[0199] Step 5031: Send a fourth request message for requesting first 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. The fourth request message includes the UE ID or SUCI.

[0200] Step 5032: Perform AMF selection based on the first subscription data returned by the UDM to determine the selected first AMF;

[0201] Step 5033: Perform SMF selection based on the second contract data returned by the UDM to determine the selected first SMF.

[0202] It should be noted that the first base station may also request a subscription data change notification from the UDM. The first base station registers itself as a base station providing services to the terminal.

[0203] In an optional embodiment, in step 504, executing the registration process according to the first AMF may include:

[0204] 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. 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.

[0205] It should be noted that SUCI, the AUSF address, the UDM address, and the selected first SMF address are registration parameter information used when the first AMF registers. Specifically, for the registration process on the first AMF side, please refer to the subsequent description of the service establishment method on the first AMF side.

[0206] 2. Receive a first indication message sent by the first AMF, where the first indication message 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.

[0207] In an optional embodiment, in step 504, executing the PDU session establishment process according to the first SMF may specifically include:

[0208] 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. 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.

[0209] Here, SUCI, the AUSF address, the UDM address, and the selected first AMF address are session establishment parameter information, which is 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.

[0210] 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;

[0211] 3. Send a PDU session establishment completion confirmation message to the first SMF.

[0212] In an optional embodiment, before step 501, the method of the embodiment of the present invention may further include:

[0213] 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.

[0214] Optionally, the third indication information is carried in system information, and the system information further includes a list of services that the network allows to use the fast service establishment method.

[0215] It should be noted that, in this embodiment, the first base station indicates to the terminal whether it supports the capability of rapid service establishment. Only when the first base station is indicated to support the capability of rapid service establishment, 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 rapid service establishment), thereby saving network resources.

[0216] In an optional embodiment, before step 501, the method of the embodiment of the present invention may further include:

[0217] 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

[0218] Receive fifth indication information sent by the terminal, where the fifth indication information is used to indicate a terminal preference, where the terminal preference includes at least one of the following:

[0219] Whether the terminal prefers to use a fast service establishment mode;

[0220] Terminal services that require rapid service establishment, such as XR and V2X services, use the rapid service establishment mode when initiating services.

[0221] Use the restriction information quickly established by the service, such as the restriction that it is only applicable to initial registration and periodic registration, but not to mobility registration.

[0222] It should be noted that in the previous embodiment, the first base station sends indication information to indicate whether it supports the ability to quickly establish a service; in this embodiment, the terminal sends indication information to instruct the terminal to use a quick 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 quick service establishment request message sent by the terminal or give a suitable processing strategy.

[0223] 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 assistance information.

[0224] 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.

[0225] That is, the indication is realized in three ways. Specifically, the first way is through the establishment cause value in the RRC establishment request message, for example, the establishment cause value is: use service fast establishment, see Figure 6; Method 2: Carrying a service fast establishment request message in the RRC establishment completion 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.

[0226] Method 3: Report terminal preference through terminal assistance information UEAssistanceInformation. This method is applicable to the scenario where the UE re-accesses the base station, see Figure 8 ; Also applies to scenarios where the UE accesses a new base station, see Figure 9 .

[0227] It should be noted that method 3 is applicable to every registration process. The base station can store the terminal preference in the RANUE context.

[0228] The service establishment method of an 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; based on the service rapid 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 the 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. In this way, through the above processing, the registration process and the PDU session establishment process can be executed synchronously, thereby realizing rapid establishment of the service channel, avoiding unnecessary AMF forwarding steps, and reducing signaling overhead.

[0229] like Figure 10 As shown, it is a flow chart of a service establishment method provided by an embodiment of the present invention, which is performed by a first AMF, wherein the method may include:

[0230] Step 1001: Receive a registration request message sent by a first base station, where the registration request message includes: a first service fast establishment indication and registration parameter information;

[0231] 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.

[0232] Optionally, the registration parameter information includes: a subscription 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.

[0233] Step 1002: Execute a registration process based on the registration request message;

[0234] 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.

[0235] Optionally, the service fast establishment request message includes at least one of the following:

[0236] a terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, where the second base station is an original base station providing services for the terminal;

[0237] SUCI;

[0238] Second access and mobility management function AMF ID, the second AMF is the original AMF that provides services for the terminal.

[0239] In an optional embodiment, before step 1001, the method of the present invention may further include:

[0240] 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;

[0241] 2) Obtaining a second terminal context through the second AMF;

[0242] 3) Acquire the subscription permanent identity SUPI of the terminal from the second terminal context;

[0243] 4) According to the SUPI, obtain the AUSF address and the UDM address through the network storage function NRF; and send the AUSF address and the UDM address to the first base station.

[0244] 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 enables the AMF to perform the security authentication process in the registration process based on the AUSF address.

[0245] In an optional embodiment, the above step 1002 may specifically include:

[0246] (1) Obtaining the mobility management context through the second AMF;

[0247] Here, the mobility management context on the core network side is obtained.

[0248] (2) Performing registration-related security authentication with the AUSF according to the AUSF address; and performing registration-related security authentication with the terminal;

[0249] That is to say, the first AMF initiates the registration-related authentication and security processes.

[0250] (3) Based on the UDM address, the first AMF is registered as the AMF providing services to the terminal through the UDM, and the subscription data related to access and mobility AM is obtained;

[0251] 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.

[0252] The first AMF requests the UDM for access and mobility (AM) related subscription 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.

[0253] (4) Selecting a policy control function (PCF) based on the AM-related contract data and obtaining the AM policy through the selected PCF;

[0254] (5) Sending first indication information to the first base station, where the first indication information is used to indicate that the registration is complete.

[0255] In an optional embodiment, the method of the present invention may further include:

[0256] 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 the terminal identifier assigned by the first AMF to the terminal.

[0257] 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.

[0258] 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 UE location change notifications from the AMF.

[0259] 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 is established.

[0260] In an optional embodiment, the method of the present invention may further include:

[0261] 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;

[0262] The terminal identifier locally allocated to the terminal is associated with the terminal identifier allocated to the terminal by the first SMF.

[0263] In this embodiment, by receiving the second notification message sent by the first SMF, the terminal identifier locally allocated to the terminal and the terminal identifier allocated to the terminal by the first SMF are associated to determine that the service rapid establishment process is for the same terminal.

[0264] The service establishment method of an 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 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, 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, avoiding unnecessary AMF forwarding steps, reducing signaling overhead, and preventing AMF from becoming a forwarding bottleneck.

[0265] like Figure 11 FIG. 1 is a flow chart of a service establishment method provided by an embodiment of the present invention, which is executed by a first SMF. The method may include:

[0266] Step 1101: 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 indication and session establishment parameter information;

[0267] 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.

[0268] Optionally, the session establishment parameter information includes: a subscription 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.

[0269] Step 1102: Execute a PDU session establishment process based on the PDU session establishment request message;

[0270] 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.

[0271] Optionally, the service fast establishment request message includes at least one of the following:

[0272] a terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, where the second base station is an original base station providing services for the terminal;

[0273] SUCI;

[0274] Second access and mobility management function AMF ID, the second AMF is the original AMF that provides services for the terminal.

[0275] In an optional embodiment, the above step 1102 may specifically include:

[0276] 1. Obtain the PDU session context through the second SMF, where the second SMF is the original SMF providing services to the terminal;

[0277] Here, what is obtained is the CN side PDU session context.

[0278] 2. Based on the AUSF address, perform security authentication related to the PDU session with the AUSF; and perform security authentication related to the PDU session with the terminal;

[0279] That is, the first SMF initiates the authentication and security process related to the PDU session.

[0280] 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;

[0281] 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.

[0282] The first SMF requests session management (SM) related contract data from the UDM, which may include the contracted slice information and the contracted QoS level (such as AMBR, etc.).

[0283] 4. Select the policy control function (PCF) based on the SM-related subscription data, and obtain the policy control and charging PCC policy through the selected PCF;

[0284] 5. Select the user plane function UPF according to the PCC policy and establish an N4 session with the selected UPF.

[0285] From then on, the PDU session establishment on the first SMF side is completed.

[0286] Based on this, in an optional embodiment, the method of the present invention may further include:

[0287] 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;

[0288] Receive a PDU session establishment completion confirmation message sent by the first base station.

[0289] In an optional embodiment, the present invention may further include:

[0290] 1. Receive a first notification message sent by the first AMF to notify the terminal of registration completion, where the first notification message includes a terminal identifier allocated by the first AMF to the terminal;

[0291] 2. Associate the terminal identifier locally allocated to the terminal with the terminal identifier allocated by the first AMF to the terminal.

[0292] 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 rapid service establishment process is for the same terminal.

[0293] In an optional embodiment, the method of the present invention may further include:

[0294] Through the first AMF address, a second notification message for notifying the first AMF of the completion of the PDU session establishment is sent, where the second notification message includes the terminal identifier assigned by the first SMF to the terminal.

[0295] Here, the purpose of sending the second notification message to the first AMF is to enable the first AMF to associate the terminal identifier allocated by the first SMF to the terminal with the terminal identifier allocated locally to the terminal.

[0296] 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 quick 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 quick 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 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, 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.

[0297] See below Figure 12 , from the perspective of interaction between devices, the implementation process of the service establishment method of the present invention is explained.

[0298] 1. The UE sends a service fast establishment request message to the new gNB. This request message carries both the initial registration HTTP request message and the PDU session establishment HTTP request message.

[0299] (1) The request message also needs to carry at least one of the following:

[0300] ①UE ID assigned by the old gNB to the UE (gNB ID + random number, which can also be I-RNTI);

[0301] ②SUCI and old AMF ID;

[0302] 2. The new gNB obtains the AUSF address and UDM address in the following two ways:

[0303] (1) Through UE context on the RAN side

[0304] 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;

[0305] (2) Based on CN side UE context

[0306] ① The new gNB performs AMF selection based on local configuration and sends a request message to the new AMF to obtain the AUSF address and UDM address. The request message carries the SUCI and the old AMF ID.

[0307] 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.

[0308] 3. The new gNB requests the UDM to select the relevant subscription data from the AMF and the SMF. The request message carries the old gNB UE ID or SUCI. The new gNB may also request a subscription data change notification from the UDM. The new gNB registers itself as the gNB serving the UE.

[0309] 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.

[0310] It should be noted that steps 5a to 12a are the registration process, and steps 5b to 14b are the PDU session establishment process. The registration process and the PDU session establishment process are executed simultaneously.

[0311] 5a. The new gNB initiates a registration request to the AMF. The request message carries the SUCI, a fast service establishment indication, and the AUSF address, UDM address, and selected SMF address. The fast service establishment indication indicates to the AMF that this process is a simultaneous registration and PDU session establishment process.

[0312] 6a. AMF can obtain the CN side mobility management context from the old AMF.

[0313] 7a. AMF initiates the registration-related authentication / security process.

[0314] 8a. The AMF registers itself as the AMF providing services to the UE through the UDM registration procedure. The UDM initiates a deregistration procedure to the old AMF.

[0315] 9a. AMF requests AM-related subscription data from UDM, including the subscribed UE-AMBR, subscribed periodic update timer, RAT access restriction, regional access restriction and other parameters.

[0316] 10a. AMF performs PCF selection.

[0317] 11a. The AMF requests the AM policy from the selected PCF.

[0318] 12a. The AMF indicates that the new gNB registration is complete.

[0319] 5b. The new gNB initiates a PDU Session Establishment Request message to the SMF. The request message carries the SUCI, a Service Fast Establishment Indication, and the AUSF address, UDM address, and selected AMF address. The Service Fast Establishment Indication indicates to the SMF that this process is a simultaneous registration and PDU session establishment process.

[0320] 6b. SMF can obtain the CN side PDU session context from the old SMF.

[0321] 7b. SMF initiates authentication / security processes related to PDU sessions.

[0322] 8b. The SMF registers itself as the SMF providing services to the UE through the UDM registration process. The UDM initiates a deregistration process to the old SMF.

[0323] 9b. SMF requests SM-related contract data from UDM, including contracted slice information and contracted QoS level (such as AMBR, etc.).

[0324] 10b. SMF performs PCF selection.

[0325] 11b. The SMF requests the selected PCF for the PCC policy.

[0326] 12b. SMF selects UPF and establishes N4 session with UPF.

[0327] 13b. The SMF indicates that the new gNB PDU session is established. The message carries at least RAN-side QoS parameters and uplink tunnel endpoint information.

[0328] 14b. The new gNB sends a PDU session establishment confirmation message to the SMF, which carries at least the downlink tunnel endpoint information.

[0329] 15. The AMF and SMF notify the completion status based on each other's addresses received from the new gNB. During this process, the AMF and SMF associate the UE identities assigned to the UE respectively.

[0330] 16. AMF and SMF subscribe to each other's event notifications, for example, SMF subscribes to UE location change notifications from AMF.

[0331] 17. RAN notifies UE that the service rapid establishment process is completed, that is, registration is completed and PDU session establishment is completed.

[0332] like Figure 13 As shown, an embodiment of the present invention further provides a service establishment device, which is executed by a first base station and may include:

[0333] The first receiving module 1301 is configured 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;

[0334] 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 business rapid establishment request message. The AUSF address is used for security authentication in the registration process and the security authentication in the PDU session establishment process;

[0335] The first processing module 1303 is configured to determine a selected first access and mobility management function AMF and a first session management function SMF based on the UDM address;

[0336] 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.

[0337] 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.

[0338] Optionally, the service fast establishment request message includes at least one of the following:

[0339] a terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, where the second base station is an original base station providing services for the terminal;

[0340] Sign the hidden logo SUCI;

[0341] Second AMF ID: The second AMF is the original AMF that provides services to the terminal.

[0342] Optionally, the first obtaining module 1302 may include:

[0343] A first acquiring unit is configured to obtain a first terminal context through a radio access network RAN ​​according to the UE ID;

[0344] The second acquiring unit is configured to acquire the AUSF address and the UDM address from the first terminal context.

[0345] Optionally, the first obtaining module 1302 may include:

[0346] A first selection unit, configured to perform AMF selection based on a local configuration;

[0347] 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;

[0348] The first receiving unit is configured 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 subscription permanent identification SUPI of the terminal and the network storage function NRF based on the SUPI.

[0349] Optionally, the first processing module 1303 may include:

[0350] A second sending unit is configured 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 subscription data selected by the AMF, and the second subscription data is subscription data selected by the SMF, and the fourth request message includes the UE ID or the SUCI;

[0351] 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;

[0352] 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.

[0353] Optionally, the service establishment module 1304 may include:

[0354] The third sending unit is configured 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. 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.

[0355] 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 complete, and the registration request message is used by the first AMF to obtain the access and mobility AM policy.

[0356] Optionally, the service establishment module 1304 may include:

[0357] A fourth sending unit is configured to send a PDU session establishment request message to the first SMF, where the PDU session establishment request message includes a SUCI, a second service fast establishment indication, the AUSF address, the UDM address, and the selected first AMF address. 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;

[0358] 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 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;

[0359] The fifth sending unit is used to send a PDU session establishment completion confirmation message to the first SMF.

[0360] Optionally, the apparatus according to the embodiment of the present invention further includes:

[0361] The first sending module is configured 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 rapid service establishment.

[0362] Optionally, the third indication information is carried in system information, and the system information further includes a list of services that the network allows to use the fast service establishment method.

[0363] Optionally, the apparatus according to the embodiment of the present invention further includes:

[0364] a fourth receiving module, configured to receive fourth indication information sent by the terminal, wherein the fourth indication information is used to instruct the terminal to use a fast service establishment mode; or

[0365] A fifth receiving module is configured 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:

[0366] Whether the terminal prefers to use a fast service establishment mode;

[0367] Terminal services that are quickly established using services;

[0368] Use the restriction information created quickly by the business.

[0369] 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 assistance information.

[0370] Optionally, the service fast establishment request message is carried in an RRC establishment completion message.

[0371] The service establishment device of an 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. In this way, through the above processing, the registration process and the PDU session establishment process can be executed synchronously, thereby realizing rapid establishment of the service channel, avoiding unnecessary AMF forwarding steps, and reducing signaling overhead.

[0372] like Figure 14 As shown, an embodiment of the present invention further provides a service establishment device, which is executed by the first AMF, and the device may include:

[0373] 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;

[0374] A registration module 1402 is configured to execute a registration process based on the registration request message;

[0375] 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.

[0376] Optionally, the registration parameter information includes: a subscription 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.

[0377] 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.

[0378] Optionally, the service fast establishment request message includes at least one of the following:

[0379] a terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, where the second base station is an original base station providing services for the terminal;

[0380] SUCI;

[0381] Second access and mobility management function AMF ID, the second AMF is the original AMF that provides services for the terminal.

[0382] Optionally, the apparatus according to the embodiment of the present invention may further include:

[0383] 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;

[0384] A second acquisition module is configured to obtain a second terminal context through the second AMF;

[0385] a third acquiring module, configured to acquire the subscription permanent identity SUPI of the terminal from the second terminal context;

[0386] 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.

[0387] Optionally, the registration module 1402 may include:

[0388] A third acquiring unit is configured to acquire a mobility management context through the second AMF;

[0389] A first security authentication unit is configured 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;

[0390] The first registration unit is configured to register the first AMF as the AMF providing services for the terminal through the UDM according to the UDM address, and obtain subscription data related to access and mobility AM;

[0391] The third processing unit is configured to select a policy control function (PCF) according to the AM-related subscription data and obtain the AM policy through the selected PCF;

[0392] 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.

[0393] Optionally, the apparatus according to the embodiment of the present invention further includes:

[0394] 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 the terminal identifier assigned by the first AMF to the terminal.

[0395] Optionally, the apparatus according to the embodiment of the present invention further includes:

[0396] 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, where the second notification message includes a terminal identifier allocated by the first SMF to the terminal;

[0397] 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.

[0398] The service establishment device of an 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 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, 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, avoiding unnecessary AMF forwarding steps, reducing signaling overhead, and preventing AMF from becoming a forwarding bottleneck.

[0399] like Figure 15 As shown, an embodiment of the present invention further provides a service establishment device, which is executed by a first SMF and may include:

[0400] The third receiving module 1501 is configured 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;

[0401] A session establishing module 1502 is configured to execute a PDU session establishing process based on the PDU session establishing request message;

[0402] 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.

[0403] Optionally, the session establishment parameter information includes: a subscription 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.

[0404] 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.

[0405] Optionally, the service fast establishment request message includes at least one of the following:

[0406] a terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, where the second base station is an original base station providing services for the terminal;

[0407] SUCI;

[0408] Second access and mobility management function AMF ID, the second AMF is the original AMF that provides services for the terminal.

[0409] Optionally, the session establishing module 1502 may include:

[0410] A fourth acquiring unit is configured to acquire a PDU session context through a second SMF, where the second SMF is an original SMF providing services for the terminal;

[0411] A second security authentication module is configured 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;

[0412] 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;

[0413] a fifth processing unit, configured to select a policy control function (PCF) according to the SM-related subscription data, and obtain a policy control and charging PCC policy through the selected PCF;

[0414] The sixth processing unit is configured to select a user plane function UPF according to a PCC policy and establish an N4 session with the selected UPF.

[0415] Optionally, the apparatus according to the embodiment of the present invention further includes:

[0416] A third sending module is 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;

[0417] An eighth receiving module is used to receive a PDU session establishment completion confirmation message sent by the first base station.

[0418] Optionally, the apparatus according to the embodiment of the present invention further includes:

[0419] a ninth receiving module, configured to 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;

[0420] The third processing module is used to associate the terminal identifier allocated locally to the terminal with the terminal identifier allocated by the first AMF to the terminal.

[0421] The service establishment device 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 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, 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.

[0422] In order to better achieve the above goals, Figure 16 As shown, 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. The processor 1600 is configured to execute the following process:

[0423] Receiving, through the transceiver, a service fast establishment request message sent by the terminal, wherein the service fast establishment request message is used to request simultaneous execution of registration and protocol data unit (PDU) session establishment;

[0424] Based on the business 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;

[0425] Based on the UDM address, determine the selected first access and mobility management function AMF and the first session management function SMF;

[0426] The registration process is performed according to the first AMF, and the PDU session establishment process is performed according to the first SMF.

[0427] 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.

[0428] Optionally, the service fast establishment request message includes at least one of the following:

[0429] a terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, where the second base station is an original base station providing services for the terminal;

[0430] Sign the hidden logo SUCI;

[0431] Second AMF ID: The second AMF is the original AMF that provides services to the terminal.

[0432] Optionally, the processor 1600 is further configured to:

[0433] Obtaining a first terminal context through a radio access network RAN ​​according to the UE ID;

[0434] The AUSF address and UDM address are obtained from the first terminal context.

[0435] Optionally, the processor 1600 is further configured to:

[0436] Perform AMF selection based on local configuration, and send, through the transceiver 1610, 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;

[0437] The AUSF address and 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.

[0438] Optionally, the processor 1600 is further configured to:

[0439] 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 subscription data selected by the AMF, and the second subscription data is subscription data selected by the SMF, and the fourth request message includes the UE ID or the SUCI;

[0440] Perform AMF selection based on the first subscription data returned by the UDM, and determine the selected first AMF;

[0441] Perform SMF selection based on the second subscription data returned by the UDM to determine the selected first SMF.

[0442] Optionally, the transceiver 1610 is further configured to:

[0443] 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. 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.

[0444] 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.

[0445] Optionally, the transceiver 1610 is further configured to:

[0446] 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. 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;

[0447] 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;

[0448] Send a PDU session establishment completion confirmation message to the first SMF.

[0449] Optionally, the transceiver 1610 is further configured to:

[0450] 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.

[0451] Optionally, the third indication information is carried in system information, and the system information further includes a list of services that the network allows to use the fast service establishment method.

[0452] Optionally, the transceiver 1610 is further configured to:

[0453] 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

[0454] Receive fifth indication information sent by the terminal, where the fifth indication information is used to indicate a terminal preference, where the terminal preference includes at least one of the following:

[0455] Whether the terminal prefers to use a fast service establishment mode;

[0456] Terminal services that are quickly established using services;

[0457] Use the restriction information created quickly by the business.

[0458] 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 assistance information.

[0459] Optionally, the service fast establishment request message is carried in an RRC establishment completion message.

[0460] The base station of an 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. In this way, through the above processing, the registration process and the PDU session establishment process can be executed synchronously, thereby realizing rapid establishment of the service channel, avoiding unnecessary AMF forwarding steps, and reducing signaling overhead.

[0461] In order to better achieve the above goals, Figure 17 As shown, an embodiment of the present invention further provides an AMF, where the AMF is a first AMF and includes a processor 1700 and a transceiver 1710. The transceiver 1710 receives and sends data under the control of the processor. The processor 1700 is configured to perform the following operations:

[0462] Receiving, through the transceiver, 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;

[0463] Executing a registration process based on the registration request message;

[0464] 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.

[0465] Optionally, the registration parameter information includes: a subscription 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.

[0466] 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.

[0467] Optionally, the service fast establishment request message includes at least one of the following:

[0468] a terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, where the second base station is an original base station providing services for the terminal;

[0469] SUCI;

[0470] Second access and mobility management function AMF ID, the second AMF is the original AMF that provides services for the terminal.

[0471] Optionally, the processor 1700 is further configured to:

[0472] Receive, 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;

[0473] Obtaining a second terminal context through the second AMF;

[0474] Acquire the subscription permanent identity SUPI of the terminal from the second terminal context;

[0475] According to SUPI, the AUSF address and the UDM address are obtained through the network storage function NRF; and the AUSF address and the UDM address are sent to the first base station through the transceiver 1710.

[0476] Optionally, the processor 1700 is further configured to:

[0477] Obtain the mobility management context through the second AMF;

[0478] According to the AUSF address, security authentication related to registration is performed between the AUSF and the terminal; and security authentication related to registration is performed between the terminal;

[0479] 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;

[0480] Select the policy control function PCF based on the AM-related contract data, and obtain the AM policy through the selected PCF;

[0481] First indication information is sent to the first base station through the transceiver 1710, where the first indication information is used to indicate that registration is completed.

[0482] Optionally, the transceiver 1710 is further configured to:

[0483] 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 the terminal identifier assigned by the first AMF to the terminal.

[0484] Optionally, the processor 1700 is further configured to:

[0485] Receiving, through the transceiver 1710, 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;

[0486] The terminal identifier locally allocated to the terminal is associated with the terminal identifier allocated to the terminal by the first SMF.

[0487] The AMF of the embodiment of the present invention receives a registration request message sent by a first base station, where 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, where 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, where the service quick establishment request message is used to request the simultaneous execution of registration and protocol data unit PDU session establishment, 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 the AMF from becoming a forwarding bottleneck.

[0488] like Figure 18 As shown, an embodiment of the present invention further provides an SMF, which is a first AMF, including a processor 1800 and a transceiver 1810, wherein the transceiver 1810 receives and sends data under the control of the processor, and the processor 1800 is configured to perform the following operations:

[0489] Receiving, through the transceiver, 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;

[0490] Execute a PDU session establishment process based on the PDU session establishment request message;

[0491] 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.

[0492] Optionally, the session establishment parameter information includes: a subscription 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.

[0493] 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.

[0494] Optionally, the service fast establishment request message includes at least one of the following:

[0495] a terminal identifier UE ID, where the UE ID is allocated to the terminal by a second base station, where the second base station is an original base station providing services for the terminal;

[0496] SUCI;

[0497] Second access and mobility management function AMF ID, the second AMF is the original AMF that provides services for the terminal.

[0498] Optionally, the processor 1800 is further configured to:

[0499] Obtain the PDU session context through the second SMF, where the second SMF is the original SMF providing services to the terminal;

[0500] Based on the AUSF address, security authentication related to the PDU session is performed between the AUSF and the terminal; and security authentication related to the PDU session is performed between the terminal and the terminal;

[0501] 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;

[0502] Select the policy control function (PCF) based on the SM-related subscription data, and obtain the policy control and charging PCC policy through the selected PCF;

[0503] Select the user plane function UPF according to the PCC policy and establish an N4 session with the selected UPF.

[0504] Optionally, the transceiver 1810 is further configured to:

[0505] 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;

[0506] Receive a PDU session establishment completion confirmation message sent by the first base station.

[0507] Optionally, the processor 1800 is further configured to:

[0508] Receiving, through the transceiver 1810, 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;

[0509] Associate the terminal identifier locally allocated to the terminal with the terminal identifier allocated to the terminal by the first AMF.

[0510] Optionally, the transceiver 1810 is further configured to:

[0511] Through the first AMF address, a second notification message for notifying the first AMF of the completion of the PDU session establishment is sent, where the second notification message includes the terminal identifier assigned by the first SMF to the terminal.

[0512] The SMF 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 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, 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.

[0513] 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 on the memory and runnable on the processor. When the processor executes the program, it implements the various processes in the service establishment method embodiment as described above and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0514] 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 runnable 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.

[0515] 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 on the memory and runnable on the processor. When the processor executes the program, it implements the various processes in the above-mentioned service establishment method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0516] The present invention also provides a computer-readable storage medium having a computer program stored thereon. When executed by a processor, the program implements the various processes of the service establishment method embodiment described above and achieves the same technical effects. To avoid repetition, the details are not described here. The computer-readable storage medium may be, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0517] 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 take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-readable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0518] The present application is described with reference to the flow chart 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 flow chart and / or block diagram and the combination of the process and / or box in the flow chart 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 flow chart.

[0519] 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 blocks in the block diagram.

[0520] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that the computer or other programmable device performs a series of operating steps to produce computer-implemented processing, so that 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.

[0521] 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 within the scope of protection of the present invention.

Claims

1. A service establishment method, executed by a first base station, characterized in that: include: receiving 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; Based on the business 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; Based on the UDM address, determine the selected first access and mobility management function AMF and the first session management function SMF; Perform the registration process according to the first AMF and perform the PDU session establishment process according to the first SMF; 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, where the second base station is an original base station providing services for the terminal; Sign the hidden logo SUCI; Second AMF ID: The second AMF is the original AMF that provides services to the terminal; The method of quickly establishing a request message based on the service to obtain the authentication service function AUSF address and the unified data management UDM address includes: Perform AMF selection based on local configuration, and send a third request message for requesting the AUSF address and 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 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 subscription permanent identification SUPI of the terminal, and then obtained through the network storage function NRF based on the SUPI.

2. The method according to claim 1, characterized in that 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.

3. The method according to claim 1, characterized in that The determining, based on the UDM address, of the selected first access and mobility management function AMF and the first session management function SMF 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, and the second subscription data is the subscription data selected by the SMF, and the fourth request message includes the UE ID or SUCI; Perform AMF selection based on the first subscription data returned by the UDM, and determine the selected first AMF; Perform SMF selection based on the second subscription data returned by the UDM to determine the selected first SMF.

4. The method according to claim 1, wherein The process executed according to the first AMF includes: 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. 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.

5. The method according to claim 1, wherein 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. 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 the user plane function UPF selected by the first SMF; Send a PDU session establishment completion confirmation message to the first SMF.

6. The method according to claim 1, characterized in that 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.

7. The method according to claim 6, characterized in that The third indication information is carried in the system information, and the system information further includes a list of services that the network allows to use the fast service establishment mode.

8. The method according to claim 1, characterized in that 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 Receive fifth indication information sent by the terminal, where the fifth indication information is used to indicate a terminal preference, where 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 created quickly by the business.

9. The method according to claim 8, characterized in that The fourth indication information is carried in the radio resource control RRC establishment request message; the fifth indication information is carried in the terminal assistance information.

10. The method according to claim 1, characterized in that The service fast establishment request message is carried in the RRC establishment completion message.

11. A service establishment method, performed by a first AMF, characterized in that: include: receiving 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; Executing a registration process based on the registration request message; 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; 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 simultaneous execution of registration and protocol data unit PDU session establishment; 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 a second terminal context through the second AMF; Acquire the 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.

12. The method according to claim 11, characterized in that The registration parameter information includes: a subscription 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.

13. The method according to claim 11, characterized in that 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.

14. The method according to claim 11, characterized in that 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, where the second base station is an original base station providing services for the terminal; SUCI; Second access and mobility management function AMF ID, the second AMF is the original AMF that provides services for the terminal.

15. The method according to claim 12, characterized in that 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, security authentication related to registration is performed between the AUSF and the terminal; and 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 based on the AM-related contract data, and obtain the AM policy through the selected PCF; First indication information is sent to the first base station, where the first indication information is used to indicate that registration is completed.

16. The method according to claim 12, characterized in that 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 the terminal identifier assigned by the first AMF to the terminal.

17. The method according to claim 11, characterized in that 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.

18. A service establishment method, executed by a first SMF, characterized in that: include: 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; 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 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, and the service fast establishment request message is used to request the simultaneous execution of registration and protocol data unit PDU session establishment; The session establishment parameter information includes: a subscription concealment identifier SUCI, an authentication service function AUSF address, a unified data management UDM address, and an address of a first AMF selected by the first base station, wherein the AUSF address and the UDM address are obtained by the first AMF through a network storage function NRF based on the SUPI after obtaining the subscription permanent identifier SUPI of the terminal from the second terminal context through the second AMF after receiving a third request message sent by the first base station requesting to obtain the AUSF address and the UDM address. The third request message includes the SUCI and the second AMF ID, and the second AMF is the original AMF providing services for the terminal.

19. The method according to claim 18, characterized in that 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.

20. The method according to claim 18, wherein 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, where the second base station is an original base station providing services for the terminal; SUCI; Second access and mobility management function AMF ID, the second AMF is the original AMF that provides services for the terminal.

21. The method according to claim 18, wherein The executing a 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 to the terminal; Based on the AUSF address, security authentication related to the PDU session is performed between the AUSF and the terminal; and security authentication related to the PDU session is performed between the terminal and 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) based on 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.

22. The method according to claim 21, characterized in that 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.

23. The method according to claim 18, 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.

24. The method according to claim 18, wherein The method further comprises: Through the first AMF address, a second notification message for notifying the first AMF of the completion of the PDU session establishment is sent, where the second notification message includes the terminal identifier assigned by the first SMF to the terminal.

25. A service establishment device, executed by a first base station, characterized in that: include: A first receiving module 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 is used to quickly establish a request message based on the service, 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; A first processing module is used to determine the selected first access and mobility management function AMF and first session management function SMF based on the UDM address; A service establishment module, configured to execute a registration process according to the first AMF and a PDU session establishment process according to the first SMF; 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, where the second base station is an original base station providing services for the terminal; Sign the hidden logo SUCI; Second AMF ID: The second AMF is the original AMF that provides services to the terminal; The first acquisition module includes: 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 configured 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 subscription permanent identification SUPI of the terminal and the network storage function NRF based on the SUPI.

26. A service establishment device, executed by a first AMF, characterized in that: include: A second receiving module 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, configured to execute a registration process based on the registration request message; 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; 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 simultaneous execution of registration and protocol data unit PDU session establishment; The device further comprises: 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 configured to obtain a second terminal context through the second AMF; a third acquiring module, configured to acquire the 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.

27. A service establishment device, executed by a first SMF, characterized in that: include: A third receiving module is configured 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, 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 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, and the service fast establishment request message is used to request the simultaneous execution of registration and protocol data unit PDU session establishment; The session establishment parameter information includes: a subscription concealment identifier SUCI, an authentication service function AUSF address, a unified data management UDM address, and an address of a first AMF selected by the first base station, wherein the AUSF address and the UDM address are obtained by the first AMF through a network storage function NRF based on the SUPI after obtaining the subscription permanent identifier SUPI of the terminal from the second terminal context through the second AMF after receiving a third request message sent by the first base station requesting to obtain the AUSF address and the UDM address. The third request message includes the SUCI and the second AMF ID, and the second AMF is the original AMF providing services for the terminal.

28. A base station, the base station being a first base station, comprising a processor and a transceiver, wherein the transceiver receives and sends data under the control of the processor, wherein: The processor is configured to perform the following operations: Receiving, through the transceiver, a service fast establishment request message sent by the 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 business 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; Based on the UDM address, determine the selected first access and mobility management function AMF and the first session management function SMF; Perform the registration process according to the first AMF and perform the PDU session establishment process according to the first SMF; 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, where the second base station is an original base station providing services for the terminal; Sign the hidden logo SUCI; Second AMF ID: The second AMF is the original AMF that provides services to the terminal; The processor is also used to: Perform AMF selection based on local configuration, and send, through the transceiver, a third request message to the selected first AMF for requesting the AUSF address and the UDM address, where the third request message includes the SUCI and the second AMF ID; The AUSF address and UDM address sent by the first AMF are received through the transceiver, 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.

29. An AMF, the AMF being a first AMF, comprising a processor and a transceiver, wherein the transceiver receives and sends data under the control of the processor, characterized in that: The processor is configured to perform the following operations: Receiving, through the transceiver, 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; Executing a registration process based on the registration request message; 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; 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 simultaneous execution of registration and protocol data unit PDU session establishment; The processor is also used to: receiving, through the transceiver, 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 a second terminal context through the second AMF; Acquire the 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 a transceiver.

30. An SMF, the SMF being a first SMF, comprising a processor and a transceiver, wherein the transceiver receives and sends data under the control of the processor, characterized in that: 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, where the PDU session establishment request message includes a second service fast establishment indication and session establishment parameter information; 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 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, and the service fast establishment request message is used to request the simultaneous execution of registration and protocol data unit PDU session establishment; The session establishment parameter information includes: a subscription concealment identifier SUCI, an authentication service function AUSF address, a unified data management UDM address, and an address of a first AMF selected by the first base station, wherein the AUSF address and the UDM address are obtained by the first AMF through a network storage function NRF based on the SUPI after obtaining the subscription permanent identifier SUPI of the terminal from the second terminal context through the second AMF after receiving a third request message sent by the first base station requesting to obtain the AUSF address and the UDM address. The third request message includes the SUCI and the second AMF ID, and the second AMF is the original AMF providing services for the terminal.

31. 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 any one of claims 1 to 10, or implements the steps in the service establishment method as described in any one of claims 11 to 17, or implements the steps in the service establishment method as described in any one of claims 18 to 24.

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