Information processing method, device, network equipment and storage medium

Abstract

The embodiment of the present invention discloses an information processing method, device, network device and storage medium. The method comprises: a policy control function (PCF) obtains a slice session number management parameter sent by a network management device; the slice session number management parameter comprises a maximum session number quota allowed by the slice and first indication information, the first indication information is used to indicate whether the slice session number is uniformly managed in the evolved packet system (EPS) and 5GS; the PCF processes the session establishment of the slice based on the slice session number management parameter.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technologies, and in particular to an information processing method, device, network equipment and storage medium. Background Art

[0002] When a user moves between the Evolved Packet System (EPS) and 5GS, the session count value in the network slice remains unchanged. In this case, the counting strategy of the network slice is common between EPS and 5GS, and when a user switches from EPS to 5GS or from 5GS to EPS, there is no need to notify the Policy Control Function (PCF). Summary of the invention

[0003] To solve the existing technical problems, the embodiments of the present invention provide an information processing method, apparatus, network device and storage medium.

[0004] To achieve the above object, the technical solution of the embodiment of the present invention is implemented as follows:

[0005] In a first aspect, an embodiment of the present invention provides an information processing method, which is applied to PCF; the method includes:

[0006] The PCF obtains a slice session number management parameter sent by a network management device; the slice session number management parameter includes a maximum session number quota allowed by the slice and first indication information, and the first indication information is used to indicate whether the slice session number is uniformly managed in the EPS and the 5G system 5GS;

[0007] The PCF processes the session establishment of the slice based on the slice session number management parameter.

[0008] In the above scheme, the PCF processes the session establishment of the slice based on the slice session number management parameter, including: when the first indication information is used to indicate that the slice session number is not uniformly managed by EPS and 5GS:

[0009] When the connection of the user equipment is switched from the protocol data unit (PDU) session corresponding to 5GS to the packet data network (PDN) connection of EPS, the PCF subtracts 1 from the session number count corresponding to the slice.

[0010] In the above scheme, the PCF processes the session establishment of the slice based on the slice session number management parameter, including: when the first indication information is used to indicate that the slice session number is not uniformly managed by EPS and 5GS:

[0011] When the PDN connection of the user equipment switched to EPS is released, the PCF keeps the session number count value corresponding to the slice unchanged.

[0012] In the above scheme, the PCF processes the session establishment of the slice based on the slice session number management parameter, including: when the first indication information is used to indicate that the slice session number is not uniformly managed by EPS and 5GS:

[0013] When the connection of the user equipment is switched from the PDN connection of EPS to the PDU session corresponding to 5GS, if the session number count value corresponding to the slice recorded by the PCF does not exceed the maximum session number quota allowed by the slice, the PCF adds 1 to the session number count value corresponding to the slice.

[0014] In the above solution, the PCF processes the session establishment of the slice based on the slice session number management parameter, including:

[0015] When the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: when the PDU session of the user equipment switches to 5GS and is released, the PCF subtracts 1 from the session number count value corresponding to the slice.

[0016] In the above scheme, the PCF processes the session establishment of the slice based on the slice session number management parameter, including: when the first indication information is used to indicate that the slice session number is not uniformly managed by EPS and 5GS:

[0017] When the connection of the user equipment is switched from the PDN connection of EPS to the PDU session corresponding to 5GS, if the session number count value corresponding to the slice recorded by the PCF reaches the maximum session number quota allowed by the slice, the connection of the user equipment is not allowed to be switched from the PDN connection of EPS to the PDU session corresponding to 5GS.

[0018] In the above scheme, the PCF processes the session establishment of the slice based on the slice session number management parameter, including: when the first indication information is used to indicate that the number of slice sessions is uniformly managed by EPS and 5GS:

[0019] When the connection of the user equipment switches between the PDU session corresponding to the 5GS and the PDN connection of the EPS, the PCF keeps the session number count corresponding to the slice unchanged.

[0020] In the above scheme, the PCF processes the session establishment of the slice based on the slice session number management parameter, including: when the first indication information is used to indicate that the number of slice sessions is uniformly managed by EPS and 5GS:

[0021] When the PDN connection of the user equipment switched to EPS is released, or the PDU session of the user equipment switched to 5GS is released, the PCF reduces the session number count value corresponding to the slice by 1.

[0022] In the above scheme, the PCF processes the session establishment of the slice based on the slice session number management parameter, including: when the first indication information is used to indicate that the number of slice sessions is uniformly managed by EPS and 5GS:

[0023] When establishing a new PDU session or a new PDN connection, if the session number count value corresponding to the slice recorded by the PCF does not exceed the maximum session number quota allowed by the slice, the PCF increases the session number count value corresponding to the slice by 1.

[0024] In the above scheme, the PCF processes the session establishment of the slice based on the slice session number management parameter, including: when the first indication information is used to indicate that the number of slice sessions is uniformly managed by EPS and 5GS:

[0025] When a new PDU session establishment request or a new PDN connection establishment request is received, if the session number count corresponding to the slice recorded by the PCF reaches the maximum session number quota allowed by the slice, the PCF increases the session number count corresponding to the slice by 1 and issues a second indication message, wherein the second indication message is used to indicate that the maximum session number quota allowed by the slice overflows, or the PCF rejects the new PDU session establishment request or the new PDN connection establishment request.

[0026] In the above scheme, before the PCF processes the session establishment of the slice based on the slice session number management parameter, the method further includes:

[0027] The PCF receives a first message sent by a session management function SMF, where the first message includes parameters of a session management policy association establishment message and third indication information, where the third indication information is used to instruct the slice to perform quota management;

[0028] The PCF processes the session establishment of the slice based on the slice session number management parameter, including:

[0029] After obtaining the third indication information, the PCF processes the session establishment of the slice based on the slice session number management parameter.

[0030] In a second aspect, an embodiment of the present invention further provides an information processing method, which is applied to SMF; the method includes:

[0031] When the connection of the user equipment is switched from 5GS to EPS, or from EPS to 5GS, the SMF sends a first message to the PCF, where the first message includes parameters of a session management policy association establishment message and third indication information, and the third indication information is used to indicate quota management of the slice.

[0032] In the above scheme, the method also includes: when the number of slice sessions used by the PCF is not uniformly managed by EPS and 5GS, if the connection of the user equipment is switched from EPS to 5GS, the SMF receives a second message sent by the PCF, and the second message is used to reject the switching of the connection of the user equipment from EPS to 5GS.

[0033] In a third aspect, an embodiment of the present invention further provides an information processing device, which is applied to PCF; the device comprises: an acquisition unit and a processing unit; wherein,

[0034] The acquisition unit is used to obtain a slice session number management parameter sent by a network management device; the slice session number management parameter includes a maximum session number quota allowed by the slice and first indication information, and the first indication information is used to indicate whether the slice session number is uniformly managed in EPS and 5GS;

[0035] The processing unit is used to process the session establishment of the slice based on the slice session number management parameter.

[0036] In the above scheme, the processing unit is used to, when the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: when the connection of the user equipment is switched from the PDU session corresponding to 5GS to the PDN connection of EPS, the session number count value corresponding to the slice is reduced by 1.

[0037] In the above scheme, the processing unit is used to, when the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: when the PDN connection of the user equipment switched to EPS is released, the session number count value corresponding to the slice remains unchanged.

[0038] In the above scheme, the processing unit is used to, when the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: when the connection of the user equipment is switched from the PDN connection of EPS to the PDU session corresponding to 5GS, if the session number count value corresponding to the slice recorded by the PCF does not exceed the maximum session number quota allowed by the slice, the session number count value corresponding to the slice is increased by 1.

[0039] In the above scheme, the processing unit is used to, when the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: when the PDU session of the user equipment switches to 5GS and is released, the session number count value corresponding to the slice is reduced by 1.

[0040] In the above scheme, the processing unit is used to, when the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: when the connection of the user equipment is switched from the PDN connection of EPS to the PDU session corresponding to 5GS, if the session number count value corresponding to the slice recorded by the PCF reaches the maximum session number quota allowed by the slice, the connection of the user equipment is not allowed to be switched from the PDN connection of EPS to the PDU session corresponding to 5GS.

[0041] In the above scheme, the processing unit is used to, when the first indication information is used to indicate that the number of slice sessions is uniformly managed by EPS and 5GS: when the connection of the user equipment switches between the PDU session corresponding to 5GS and the PDN connection of EPS, keep the session number count value corresponding to the slice unchanged.

[0042] In the above scheme, the processing unit is used to, when the first indication information is used to indicate that the number of slice sessions is uniformly managed by EPS and 5GS: when the PDN connection of the user equipment switched to EPS is released, or the PDU session of the user equipment switched to 5GS is released, reduce the session number count value corresponding to the slice by 1.

[0043] In the above scheme, the processing unit is used to, when the first indication information is used to indicate the number of slice sessions under unified management of EPS and 5GS: when a new PDU session or a new PDN connection is established, if the session number count value corresponding to the slice recorded by the PCF does not exceed the maximum session number quota allowed by the slice, the session number count value corresponding to the slice is increased by 1.

[0044] In the above scheme, the processing unit is used to, when the first indication information is used to indicate the number of slice sessions under unified management of EPS and 5GS: when a new PDU session establishment request or a new PDN connection establishment request is received, if the session number count value corresponding to the slice recorded by the PCF reaches the maximum session number quota allowed by the slice, the session number count value corresponding to the slice is increased by 1 and a second indication information is issued, wherein the second indication information is used to indicate that the maximum session number quota allowed by the slice overflows, or the new PDU session establishment request or the new PDN connection establishment request is rejected.

[0045] In the above scheme, the device also includes a first receiving unit, used to receive a first message sent by a session management function SMF, the first message includes parameters of a session management policy association establishment message and third indication information, and the third indication information is used to indicate that the slice is to perform quota management;

[0046] The processing unit is used to process the session establishment of the slice based on the slice session number management parameter after obtaining the third indication information.

[0047] In a fourth aspect, an embodiment of the present invention further provides an information processing device, which is applied to SMF; the device includes a sending unit, which is used to send a first message to PCF when the connection of a user device is switched from 5GS to EPS, or from EPS to 5GS, wherein the first message includes parameters of a session management policy association establishment message and third indication information, and the third indication information is used to indicate quota management of the slice.

[0048] In the above scheme, the device also includes a second receiving unit, which is used to receive the second message sent by the PCF if the connection of the user equipment is switched from EPS to 5GS when the slice session number adopted by the PCF is not uniformly managed by EPS and 5GS. The second message is used to reject the switching of the connection of the user equipment from EPS to 5GS.

[0049] In a fifth aspect, an embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in the first aspect or the second aspect of the embodiment of the present invention.

[0050] In a sixth aspect, an embodiment of the present invention further provides a network device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of the method described in the first aspect or the second aspect of the embodiment of the present invention are implemented.

[0051] The information processing method, device, network device and storage medium provided by the embodiment of the present invention include: PCF obtains slice session number management parameters sent by the network management device; the slice session number management parameters include the maximum session number quota allowed by the slice and the first indication information, the first indication information is used to indicate whether the slice session number is under the unified management of EPS and 5GS; the PCF processes the session establishment of the slice based on the slice session number management parameters. The technical solution of the embodiment of the present invention is adopted, and the first indication information is configured by the network management device to indicate whether the slice session number is under the unified management of EPS and 5GS, and two schemes are given: the slice session number is under the unified management of EPS and 5GS and the slice session number is not under the unified management of EPS and 5GS; especially in the scheme where the slice session number is not under the unified management of EPS and 5GS (i.e., 5GS is independently managed), it can better meet the requirements of the number of session accesses of 5GS and achieve more accurate control of the number of sessions. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 A schematic diagram of a flow chart of an information processing method according to an embodiment of the present invention;

[0053] Figure 2 The interactive process diagram of the information processing method according to the embodiment of the present invention is as follows Figure 1 ;

[0054] Figure 3 The interactive process diagram of the information processing method according to the embodiment of the present invention is as follows Figure 2 ;

[0055] Figure 4 The structure diagram of the information processing device according to the embodiment of the present invention is shown in FIG. Figure 1 ;

[0056] Figure 5 The structure diagram of the information processing device according to the embodiment of the present invention is shown in FIG. Figure 2 ;

[0057] Figure 6 The figure is a schematic diagram of the hardware structure of the network device according to the embodiment of the present invention. DETAILED DESCRIPTION

[0058] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0059] An embodiment of the present invention provides an information processing method, which is applied to PCF. Figure 1 Schematic diagram of the information processing method according to an embodiment of the present invention; Figure 1 As shown, the method includes:

[0060] Step 101: The PCF obtains a slice session number management parameter sent by a network management device; the slice session number management parameter includes a maximum session number quota allowed by the slice and first indication information, and the first indication information is used to indicate whether the slice session number is uniformly managed in EPS and 5GS;

[0061] Step 102: The PCF processes the session establishment of the slice based on the slice session number management parameter.

[0062] In this embodiment, the network management device (or also called the operation and maintenance management (OAM, OperationAdministration and Maintenance) network management device) configures the switching session number management parameters for the PCF, and the slice session number management parameters include the maximum session number quota allowed by the slice and the first indication information for indicating whether 4G and 5G are managed uniformly. In practical applications, the maximum session number quota allowed by the slice can be added through the fill field of a certain type of message; the first indication information for indicating whether the slice session number is uniformly managed by EPS and 5GS can be represented by a certain field in the message. For example, the value of this field can be 1, indicating that the slice session number is uniformly managed by EPS and 5GS, and the value of this field can be 0, indicating that the slice session number is not uniformly managed by EPS and 5GS.

[0063] Among them, the maximum session number quota allowed by the slice refers to the maximum PDU session number quota allowed by the slice, that is, the maximum number of PDU sessions allowed by the slice.

[0064] Among them, the slice session number management parameter is a parameter sent by the network management device to the PCF, or it can also be called a management parameter, slice management parameter, configuration parameter, indication parameter or slice session number quota management parameter, etc.

[0065] In this embodiment, based on the indication of the first indication information, two implementation scenarios may be included: the number of slice sessions is uniformly managed by EPS and 5GS and the number of slice sessions is not uniformly managed by EPS and 5GS (that is, 5GS is independently managed); on the other hand, for the terminal, application scenarios may include switching from 5GS to EPS and switching from EPS to 5GS. The following describes the embodiments of the present invention based on two different implementation scenarios and two different application scenarios as examples.

[0066] In some optional embodiments of the present invention, the PCF processes the session establishment of the slice based on the slice session number management parameter, including: when the first indication information is used to indicate that the slice session number is not uniformly managed by EPS and 5GS: when the connection of the user equipment is switched from the PDU session corresponding to 5GS to the PDN connection of EPS, the PCF subtracts 1 from the session number count value corresponding to the slice.

[0067] In some optional embodiments of the present invention, the PCF processes the session establishment of the slice based on the slice session number management parameter, including: when the first indication information is used to indicate that the slice session number is not uniformly managed by EPS and 5GS: when the PDN connection of the user equipment switching to EPS is released, the PCF keeps the session number count value corresponding to the slice unchanged.

[0068] In some optional embodiments of the present invention, the PCF processes the session establishment of the slice based on the slice session number management parameter, including: when the first indication information is used to indicate that the slice session number is not uniformly managed by EPS and 5GS: when the connection of the user equipment is switched from the PDN connection of EPS to the PDU session corresponding to 5GS, if the session number count value corresponding to the slice recorded by the PCF does not exceed the maximum session number quota allowed by the slice, the PCF adds 1 to the session number count value corresponding to the slice.

[0069] In some optional embodiments of the present invention, the PCF processes the session establishment of the slice based on the slice session number management parameter, including: when the first indication information is used to indicate that the slice session number is not uniformly managed by EPS and 5GS: when the user equipment switches to the 5GS PDU session release, the PCF subtracts 1 from the session number count value corresponding to the slice.

[0070] In some optional embodiments of the present invention, the PCF processes the session establishment of the slice based on the slice session number management parameter, including: when the first indication information is used to indicate that the slice session number is not uniformly managed by EPS and 5GS: when the connection of the user equipment is switched from the PDN connection of EPS to the PDU session corresponding to 5GS, if the session number count value corresponding to the slice recorded by the PCF reaches the maximum session number quota allowed by the slice, the connection of the user equipment is not allowed to be switched from the PDN connection of EPS to the PDU session corresponding to 5GS.

[0071] In this embodiment, if the session number count value corresponding to the slice recorded by the PCF reaches the maximum session number quota allowed by the slice, and the connection of the user equipment is not allowed to switch from the PDN connection of EPS to the PDU session corresponding to 5GS, the PCF may send a message to the SMF to inform the SMF that the session number count value corresponding to the slice currently recorded reaches the maximum session number quota allowed by the slice, and the connection of the user equipment is not allowed (or rejected) to switch from the PDN connection of EPS to the PDU session corresponding to 5GS.

[0072] In some optional embodiments of the present invention, the PCF processes the session establishment of the slice based on the slice session number management parameter, including: when the first indication information is used to indicate that the slice session number is uniformly managed by EPS and 5GS: when the connection of the user equipment switches between the PDU session corresponding to 5GS and the PDN connection of EPS, the PCF keeps the session number count value corresponding to the slice unchanged.

[0073] In some optional embodiments of the present invention, the PCF processes the session establishment of the slice based on the slice session number management parameter, including: when the first indication information is used to indicate that the slice session number is uniformly managed by EPS and 5GS: when the PDN connection of the user equipment switching to EPS is released, or the PDU session of the user equipment switching to 5GS is released, the PCF subtracts 1 from the session number count value corresponding to the slice.

[0074] In some optional embodiments of the present invention, the PCF processes the session establishment of the slice based on the slice session number management parameter, including: when the first indication information is used to indicate the slice session number under unified management of EPS and 5GS: when a new PDU session or a new PDN connection is established, if the session number count value corresponding to the slice recorded by the PCF does not exceed the maximum session number quota allowed by the slice, the PCF adds 1 to the session number count value corresponding to the slice.

[0075] In some optional embodiments of the present invention, the PCF processes the session establishment of the slice based on the slice session number management parameter, including: when the first indication information is used to indicate that the slice session number is uniformly managed by EPS and 5GS: when a new PDU session establishment request or a new PDN connection establishment request is received, if the session number count value corresponding to the slice recorded by the PCF reaches the maximum session number quota allowed by the slice, the PCF adds 1 to the session number count value corresponding to the slice and issues a second indication information, and the second indication information is used to indicate that the maximum session number quota allowed by the slice overflows, or the PCF rejects the new PDU session establishment request or the new PDN connection establishment request.

[0076] In this embodiment, if the session number count value corresponding to the slice recorded by the PCF reaches the maximum session number quota allowed by the slice, and the PCF rejects the new PDU session establishment request or the new PDN connection establishment request, the PCF may send a message to the SMF to inform the SMF that the session number count value corresponding to the slice currently recorded reaches the maximum session number quota allowed by the slice, and the new PDU session establishment request or the new PDN connection establishment request is not allowed (or rejected).

[0077] In some optional embodiments of the present invention, before the PCF processes the session establishment of the slice based on the slice session number management parameter, the method also includes: the PCF receives a first message sent by a session management function (SMF, Session Management Function), the first message includes parameters of a session management policy association establishment message and third indication information, the third indication information is used to instruct the slice to perform quota management; then the PCF processes the session information corresponding to the slice based on the slice session number management parameter, including: after the PCF obtains the third indication information, it processes the session establishment of the slice based on the slice session number management parameter.

[0078] In this embodiment, the PCF receives a first message sent from the SMF, wherein the first message includes at least the third indication information, and the third indication information indicates whether the slice is subject to quota management; if the third indication information indicates that the slice is subject to quota management, the PCF manages the number of slice sessions based on the maximum number of session quotas allowed for the slice contained in the slice session number management parameters and the first indication information used to indicate whether 4G and 5G are managed in a unified manner.

[0079] By adopting the technical solution of the embodiment of the present invention, the first indication information is configured through the network management device to indicate whether 4G and 5G are managed in a unified manner, and two solutions of 4G and 5G unified management and 4G and 5G non-unified management are provided; especially under the solution of 4G and 5G non-unified management (i.e. 5G independent management), it can better meet the requirements of the number of session accesses of 5GS and achieve more precise control of the number of sessions.

[0080] Based on the above embodiments, an embodiment of the present invention also provides an information processing method, which is applied to SMF. The method includes: when the connection of the user equipment is switched from 5GS to EPS, or from EPS to 5GS, the SMF sends a first message to the PCF, and the first message includes parameters of the session management policy association establishment message and third indication information, and the third indication information is used to indicate the slice for quota management.

[0081] In some optional embodiments of the present invention, the method further includes: when the slice session number adopted by the PCF is not uniformly managed by EPS and 5GS, if the connection of the user equipment is switched from EPS to 5GS, the SMF receives a second message sent by the PCF, and the second message is used to reject the switching of the connection of the user equipment from EPS to 5GS.

[0082] The information processing method according to the embodiment of the present invention is described in detail below with reference to specific examples.

[0083] Example 1

[0084] This example is an application scenario example in which a terminal switches from 5GS to EPS, that is, an application scenario example in which the core network accessed by the terminal switches from 5GS to EPS. Figure 2 The interactive process diagram of the information processing method according to the embodiment of the present invention is as follows Figure 1 ;like Figure 2 As shown, the method includes:

[0085] Step 200: The network management OAM device configures slice session number quota management parameters for PCF; wherein the slice session number quota management parameters include: (1) the maximum PDU session number quota allowed for the slice; (2) an indication of whether the slice session number is uniformly managed by EPS and 5GS (i.e., the first indication information in the aforementioned embodiment).

[0086] Among them, PCF can obtain the OAM configureQuota management indication (OAM configureQuota management indication) sent by the network management OAM device, and the OAM configureQuota management indication is the above-mentioned slice session number quota management parameter.

[0087] Step 201: NG-RAN (NG-RAN stands for 5G access network) determines that the UE needs to switch to the Evolved-UMTS Terrestrial Radio Access Network (E-UTRAN) and sends a Handover Required message to the Access and Mobility Management Function (AMF). The Handover Required message may include the identifier of the target base station to be switched.

[0088] Since this example is a switch from 5GS to EPS, the target base station can be an evolved base station (eNB); the target base station identifier can be represented as Target eNB Identifier.

[0089] Step 202a-Step 202c: AMF determines whether to switch to E-UTRAN based on the target base station identifier (Target eNB Identifier), selects the mobility management entity (MME) in a conventional manner, and AMF sends a PDU session context request (Nsmf_PDUSession_ContextRequest) to the packet data network gateway control plane (PGW-C) + session management function (SMF), PGW-C+SMF sends an N4 session modification (N4Session Modification) message to the packet data network gateway user plane (PGW-U) + user plane function (UPF, User Plane Function); PGW-C+SMF sends a PDU session context response (Nsmf_PDUSession_ContextRsp) to AMF.

[0090] Step 203: When the SMF learns that quota management is required for the slice based on the configuration information of the network management OAM device (i.e., the third indication information in the aforementioned embodiment), it sends a session management quota policy association establishment (SM QuotaPolicy Association Establishment) message (i.e., the first message in the aforementioned embodiment) to the PCF. The message includes parameters of the session policy association establishment (SM Policy Association Establishment) message and an indication that quota management is required (i.e., the third indication information in the aforementioned embodiment).

[0091] It can be understood that the SM Policy Association Establishment message is a message used in the conventional technical solution during the UE switching process. In this embodiment, an additional indication that quota management is required (i.e., the third indication information in the aforementioned embodiment) is added based on the conventional message to generate a new SM Quota Policy Association Establishment message, which is sent by the SMF to the PCF.

[0092] The PCF performs the following operations according to the indication of quota management required in the message (i.e., the third indication information in the aforementioned embodiment) and the slice session number quota management parameter obtained in step 200:

[0093] (1) If the number of slice sessions is managed uniformly on EPS and 5GS:

[0094] -When a user moves from 5GS to EPS (i.e. switches from 5GS to EPS) and switches from a PDU session to a PDN connection, the PCF keeps the number of PDU sessions corresponding to the slice unchanged;

[0095] -When a PDN connection of the user switching to EPS is released, the PCF reduces the PDU session count corresponding to the slice by 1;

[0096] -When establishing a new PDN connection:

[0097] a) If the session count value corresponding to the slice does not reach the maximum PDU session quota allowed by the slice, the PCF increases the PDU session count value by 1;

[0098] b) If the session count value corresponding to the slice has reached the maximum PDU session quota allowed by the slice, there are two ways to handle it:

[0099] 1. Allow the PDN connection to be established, add 1 to the count value, and output an indication representing "quota overflow" (i.e., the second indication information in the aforementioned embodiment);

[0100] 2. Refuse to establish a new PDN connection and output an indication message indicating "quota overflow".

[0101] (2) 5G slices are managed separately (i.e., the number of slice sessions is not managed uniformly by EPS and 5GS):

[0102] -When a user moves from 5GS to EPS (i.e. switches from 5GS to EPS) and switches from a PDU session to a PDN connection, the PCF subtracts 1 from the PDU session count corresponding to the slice.

[0103] -When the PDN connection switched to EPS is released, the PDU session count value recorded by the PCF remains unchanged.

[0104] Step 204-Step 211: Complete the subsequent session establishment and switching process in a conventional manner.

[0105] Specifically, step 204: AMF sends a relocation request (Relocation Request) to the selected MME; step 205 to step 206: MME sends a create session request (Create session request) to SGW, and SGW sends a create session response (Create session response) to MME; step 207: MME sends a handover request (Handover request) to E-UTRAN; step 208: E-UTRAN sends a handover request confirmation (Handover request ACK) to MME; step 209: MME sends a relocation response (Relocation response) to AMF; step 210a to step 210b: AMF sends a handover command to UE through NG RAN; step 211a: UE sends a handover complete (Handover complete) to E-UTRAN; step 211b: E-UTRAN sends a handover notification (Handover Notify) to MME.

[0106] Example 2

[0107] This example is an application scenario example in which a terminal switches from EPS to 5GS, that is, an application scenario example in which the core network accessed by the terminal switches from EPS to 5GS. Figure 3 The interactive process diagram of the information processing method according to the embodiment of the present invention is as follows Figure 2 ;like Figure 3 As shown, the method includes:

[0108] Step 300: The network management OAM device configures slice session number quota management parameters for PCF; wherein the slice session number quota management parameters include: (1) the maximum PDU session number quota allowed for the slice; (2) an indication of whether the slice session number is uniformly managed by EPS and 5GS (i.e., the first indication information in the aforementioned embodiment).

[0109] Among them, PCF can obtain the OAM configureQuota management indication (OAM configureQuota management indication) sent by the network management OAM device, and the OAM configureQuota management indication is the above-mentioned slice session number quota management parameter.

[0110] Step 301-Step 303: Based on the switching of S1, refer to the conventional processing method.

[0111] Specifically, step 301: E-UTRAN initiates handover (Handover initiation); step 302: E-UTRAN sends a handover requirement (Handover required) to MME; step 303: MME sends a forward relocation request (Forward Relocation Request) to the initial AMF (intial AMF).

[0112] Step 304: the initial AMF instructs the SMF to perform the handover. Specifically, the initial AMF sends a PDU session creation context request (Nsmf_PDUSession_CreateSMContextRequest) to the PGW-C+SMF.

[0113] Step 305: PGW-C+SMF requests PGW-U+UPF to allocate a CN tunnel for the PDU session. Specifically, PGW-C+SMF and PGW-U+UPF perform the above allocation of a CN tunnel for the PDU session through an N4 Session Modification message.

[0114] Step 306: PGW-C+SMF sends a response message to initial AMF. Specifically, PGW-C+SMF sends a PDU session creation context response (Nsmf_PDUSession_CreateSMContextResponse) to initialAMF.

[0115] Step 307: When the SMF learns that quota management is required for the slice based on the configuration information of the network management OAM device (i.e., the third indication information in the aforementioned embodiment), it sends a session management quota policy association establishment (SM QuotaPolicy Association Establishment) message (i.e., the first message in the aforementioned embodiment) to the PCF. The message includes parameters of the session policy association establishment (SM Policy Association Establishment) message and an indication that quota management is required (i.e., the third indication information in the aforementioned embodiment).

[0116] It can be understood that the SM Policy Association Establishment message is a message used in the conventional technical solution during the UE switching process. In this embodiment, an additional indication that quota management is required (i.e., the third indication information in the aforementioned embodiment) is added based on the conventional message to generate a new SM Quota Policy Association Establishment message, which is sent by the SMF to the PCF.

[0117] The PCF performs the following operations according to the indication of quota management required in the message (i.e., the third indication information in the aforementioned embodiment) and the slice session number quota management parameter obtained in step 300:

[0118] (1) If the number of slice sessions is managed uniformly on EPS and 5GS:

[0119] -When a user moves from EPS to 5GS (i.e., switches from EPS to 5GS), and the PDN connection switches to a PDU session, the PCF keeps the number of PDU sessions corresponding to the slice unchanged;

[0120] -When a PDU session is released when the user switches to 5GS, PCF reduces the PDU session count by 1;

[0121] -When establishing a new PDU session:

[0122] a) If the session count value corresponding to the slice does not reach the maximum PDU session count quota allowed by the slice, the session establishment is allowed and the PDU session count value is increased by 1;

[0123] b) If the session count value corresponding to the slice has reached the maximum PDU session quota allowed by the slice, there are two ways to handle it:

[0124] 1. Allow the PDU session to be established, increase the PDU session count by 1, and output an indication representing "quota overflow" (i.e., the second indication information in the aforementioned embodiment);

[0125] 2. Refuse to establish a new PDU session and output the reason of "quota overflow".

[0126] (2) 5G slices are managed separately (i.e., the number of slice sessions is not managed uniformly by EPS and 5GS):

[0127] -When the user moves from EPS to 5GS (i.e., switches from EPS to 5GS), if the PDU session count value recorded by the PCF does not reach the maximum PDU session count quota allowed by the slice, the PCF increases the PDU session count value by 1 when the PDN connection is switched to a PDU session;

[0128] -When the PDU session of the user switching to 5GS is released, PCF reduces the PDU session count corresponding to the slice by 1;

[0129] -If the PDU session count value recorded by the PCF has reached the maximum PDU session quota allowed by the slice, switching from EPS to 5GS is not allowed (i.e. switching from EPS to 5GS is not allowed).

[0130] Step 308: Based on the S-NSSAI received from PGW-C+SMF, the initial AMF may reselect the target AMF, and the initial AMF sends a create UE context request (Nsmf_Communication_CreateUEContextRequest) to the target AMF.

[0131] Step 309: Target AMF sends a handover request (Handover Request) to NG-RAN.

[0132] Step 310: NG-RAN sends a Handover Request ACK to the target AMF.

[0133] An embodiment of the present invention further provides an information processing device, which is applied to PCF. Figure 4 The structure diagram of the information processing device according to the embodiment of the present invention is shown in FIG. Figure 1 ;like Figure 4 As shown, the device includes: an acquisition unit 41 and a processing unit 42; wherein,

[0134] The acquisition unit 41 is used to obtain a slice session number management parameter sent by a network management device; the slice session number management parameter includes a maximum session number quota allowed by the slice and first indication information, and the first indication information is used to indicate whether the slice session number is uniformly managed in EPS and 5GS;

[0135] The processing unit 42 is used to process the session establishment of the slice based on the slice session number management parameter.

[0136] In some optional embodiments of the present invention, the processing unit 42 is used to, when the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: when the connection of the user equipment is switched from the PDU session corresponding to 5GS to the PDN connection of EPS, reduce the session number count value corresponding to the slice by 1.

[0137] In some optional embodiments of the present invention, the processing unit 42 is used to, when the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: when the PDN connection of the user equipment switching to EPS is released, keep the session number count value corresponding to the slice unchanged.

[0138] In some optional embodiments of the present invention, the processing unit 42 is used to, when the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: when the connection of the user equipment is switched from the PDN connection of EPS to the PDU session corresponding to 5GS, if the session number count value corresponding to the slice recorded by the PCF does not exceed the maximum session number quota allowed by the slice, the session number count value corresponding to the slice is increased by 1.

[0139] In some optional embodiments of the present invention, the processing unit 42 is used to, when the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: when the PDU session of the user equipment switches to 5GS is released, the session number count value corresponding to the slice is reduced by 1.

[0140] In some optional embodiments of the present invention, the processing unit 42 is used to, when the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: when the connection of the user equipment is switched from the PDN connection of EPS to the PDU session corresponding to 5GS, if the session number count value corresponding to the slice recorded by the PCF reaches the maximum session number quota allowed by the slice, the connection of the user equipment is not allowed to be switched from the PDN connection of EPS to the PDU session corresponding to 5GS.

[0141] In some optional embodiments of the present invention, the processing unit 42 is used to, when the first indication information is used to indicate that the number of slice sessions is uniformly managed by EPS and 5GS: when the connection of the user equipment switches between the PDU session corresponding to 5GS and the PDN connection of EPS, keep the session number count value corresponding to the slice unchanged.

[0142] In some optional embodiments of the present invention, the processing unit 42 is used to, when the first indication information is used to indicate that the number of slice sessions is uniformly managed by EPS and 5GS: when the PDN connection of the user equipment switched to EPS is released, or the PDU session of the user equipment switched to 5GS is released, reduce the session number count value corresponding to the slice by 1.

[0143] In some optional embodiments of the present invention, the processing unit 42 is used to, when the first indication information is used to indicate the number of slice sessions under unified management of EPS and 5GS: when a new PDU session or a new PDN connection is established, if the session number count value corresponding to the slice recorded by the PCF does not exceed the maximum session number quota allowed by the slice, the session number count value corresponding to the slice is increased by 1.

[0144] In some optional embodiments of the present invention, the processing unit 42 is used to, when the first indication information is used to indicate the number of slice sessions under unified management of EPS and 5GS: when a new PDU session establishment request or a new PDN connection establishment request is received, if the session number count value corresponding to the slice recorded by the PCF reaches the maximum session number quota allowed by the slice, the session number count value corresponding to the slice is increased by 1 and a second indication information is issued, wherein the second indication information is used to indicate that the maximum session number quota allowed by the slice overflows, or, the new PDU session establishment request or the new PDN connection establishment request is rejected.

[0145] In some optional embodiments of the present invention, the device further includes a first receiving unit 43, configured to receive a first message sent by the SMF, wherein the first message includes parameters of a session management policy association establishment message and third indication information, wherein the third indication information is used to indicate that the slice is to perform quota management;

[0146] The processing unit 42 is used to process the session establishment of the slice based on the slice session number management parameter after obtaining the third indication information.

[0147] In an embodiment of the present invention, the processing unit 42 in the device can be implemented by a central processing unit (CPU), a digital signal processor (DSP), a microcontroller unit (MCU) or a programmable gate array (FPGA) in actual applications; the acquisition unit 41 and the first receiving unit 43 in the device can be implemented by a communication module (including: basic communication kit, operating system, communication module, standardized interface and protocol, etc.) and a transceiver antenna in actual applications.

[0148] It should be noted that: when the information processing device provided in the above embodiment performs information processing, only the division of the above program modules is used as an example. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the information processing device provided in the above embodiment and the information processing method embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0149] An embodiment of the present invention also provides an information processing device, which is applied to SMF; the device includes a sending unit, which is used to send a first message to PCF when the connection of a user device is switched from 5GS to EPS, or from EPS to 5GS, wherein the first message includes parameters of a session management policy association establishment message and third indication information, and the third indication information is used to indicate quota management of the slice.

[0150] In some optional embodiments of the present invention, the device also includes a second receiving unit, which is used to receive a second message sent by the PCF if the connection of the user equipment is switched from EPS to 5GS when the slice session number adopted by the PCF is not uniformly managed by EPS and 5GS, and the SMF is used to reject the switching of the connection of the user equipment from EPS to 5GS.

[0151] In the embodiment of the present invention, the sending unit and the second receiving unit in the device can be implemented in actual applications through a communication module (including: basic communication kit, operating system, communication module, standardized interface and protocol, etc.) and a transceiver antenna.

[0152] It should be noted that: when the information processing device provided in the above embodiment performs information processing, only the division of the above program modules is used as an example. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the information processing device provided in the above embodiment and the information processing method embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0153] The embodiment of the present invention further provides a network device, which may specifically be a PCF or an SMF. Figure 6 FIG. 1 is a schematic diagram of the hardware structure of a network device according to an embodiment of the present invention. Figure 6 As shown, the network device includes a memory 52, a processor 51, and a computer program stored in the memory 52 and executable on the processor 51. When the processor 51 executes the program, the steps of the information processing method described in the embodiment of the present invention are implemented.

[0154] Optionally, the network device further includes a network interface 53. The various components in the network device are coupled together via a bus system 54. It is understood that the bus system 54 is used to achieve connection and communication between these components. In addition to the data bus, the bus system 54 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Figure 6 Various buses are labeled as bus system 54 .

[0155] It can be understood that the memory 52 can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disk, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), and direct RAM bus random access memory (DRRAM, Direct Rambus Random Access Memory).The memory 52 described in the embodiments of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

[0156] The method disclosed in the above embodiment of the present invention can be applied to the processor 51, or implemented by the processor 51. The processor 51 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 51 or the instruction in the form of software. The above processor 51 can be a general-purpose processor, a DSP, or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The processor 51 can implement or execute the methods, steps and logic block diagrams disclosed in the embodiment of the present invention. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in the embodiment of the present invention can be directly embodied as a hardware decoding processor to execute, or the hardware and software modules in the decoding processor can be combined to execute. The software module can be located in a storage medium, which is located in the memory 52. ​​The processor 51 reads the information in the memory 52 and completes the steps of the above method in combination with its hardware.

[0157] In an exemplary embodiment, the present invention also provides a computer-readable storage medium, such as a memory 52 including a computer program, and the computer program can be executed by a processor 51 of a network device to complete the steps of the aforementioned method. The computer-readable storage medium can be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM; or it can be various devices including one or any combination of the above memories.

[0158] The embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the steps of the information processing method described in the embodiment of the present invention are implemented.

[0159] The methods disclosed in several method embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments.

[0160] The features disclosed in several product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0161] The features disclosed in several method or device embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments or device embodiments.

[0162] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0163] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0164] In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0165] A person of ordinary skill in the art can understand that: all or part of the steps of implementing the above-mentioned method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium, which, when executed, executes the steps of the above-mentioned method embodiment; and the aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, disks or optical disks.

[0166] Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention can be essentially or partly reflected in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

[0167] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An information processing method, characterized in that: The method is applied to a policy control function PCF; the method comprises: The PCF obtains a slice session number management parameter sent by a network management device; the slice session number management parameter includes a maximum session number quota allowed by the slice and first indication information, and the first indication information is used to indicate whether the slice session number is uniformly managed in the evolved packet system EPS and the 5G system 5GS; The PCF processes the session establishment of the slice based on the slice session number management parameter.

2. The method according to claim 1, characterized in that The PCF processes the session establishment of the slice based on the slice session number management parameter, including: In the case where the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: When the connection of the user equipment is switched from the protocol data unit PDU session corresponding to 5GS to the packet data network PDN connection of EPS, the PCF subtracts 1 from the session number count corresponding to the slice.

3. The method according to claim 1, characterized in that The PCF processes the session establishment of the slice based on the slice session number management parameter, including: In the case where the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: When the PDN connection of the user equipment switched to EPS is released, the PCF keeps the session number count value corresponding to the slice unchanged.

4. The method according to claim 1, characterized in that: The PCF processes the session establishment of the slice based on the slice session number management parameter, including: In the case where the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: When the connection of the user equipment is switched from the PDN connection of EPS to the PDU session corresponding to 5GS, if the session number count value corresponding to the slice recorded by the PCF does not exceed the maximum session number quota allowed by the slice, the PCF adds 1 to the session number count value corresponding to the slice.

5. The method according to claim 1, characterized in that The PCF processes the session establishment of the slice based on the slice session number management parameter, including: In the case where the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: When the user equipment switches to 5GS and the PDU session is released, the PCF reduces the session number count corresponding to the slice by 1.

6. The method according to claim 1, characterized in that The PCF processes the session establishment of the slice based on the slice session number management parameter, including: In the case where the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: When the connection of the user equipment is switched from the PDN connection of EPS to the PDU session corresponding to 5GS, if the session number count value corresponding to the slice recorded by the PCF reaches the maximum session number quota allowed by the slice, the connection of the user equipment is not allowed to be switched from the PDN connection of EPS to the PDU session corresponding to 5GS.

7. The method according to claim 1, characterized in that The PCF processes the session establishment of the slice based on the slice session number management parameter, including: In the case where the first indication information is used to indicate the number of slice sessions in a unified management of EPS and 5GS: When the connection of the user equipment switches between the PDU session corresponding to the 5GS and the PDN connection of the EPS, the PCF keeps the session number count corresponding to the slice unchanged.

8. The method according to claim 1, characterized in that The PCF processes the session establishment of the slice based on the slice session number management parameter, including: In the case where the first indication information is used to indicate the number of slice sessions in a unified management of EPS and 5GS: When the PDN connection of the user equipment switched to EPS is released, or the PDU session of the user equipment switched to 5GS is released, the PCF reduces the session number count value corresponding to the slice by 1.

9. The method according to claim 1, characterized in that: The PCF processes the session establishment of the slice based on the slice session number management parameter, including: In the case where the first indication information is used to indicate the number of slice sessions in a unified management of EPS and 5GS: When establishing a new PDU session or a new PDN connection, if the session number count value corresponding to the slice recorded by the PCF does not exceed the maximum session number quota allowed by the slice, the PCF increases the session number count value corresponding to the slice by 1.

10. The method according to claim 1, characterized in that The PCF processes the session establishment of the slice based on the slice session number management parameter, including: In the case where the first indication information is used to indicate the number of slice sessions in a unified management of EPS and 5GS: When a new PDU session establishment request or a new PDN connection establishment request is received, if the session number count corresponding to the slice recorded by the PCF reaches the maximum session number quota allowed by the slice, the PCF increases the session number count corresponding to the slice by 1 and issues a second indication message, wherein the second indication message is used to indicate that the maximum session number quota allowed by the slice overflows, or the PCF rejects the new PDU session establishment request or the new PDN connection establishment request.

11. The method according to any one of claims 1 to 10, characterized in that: Before the PCF processes the session establishment of the slice based on the slice session number management parameter, the method further includes: The PCF receives a first message sent by a session management function SMF, where the first message includes parameters of a session management policy association establishment message and third indication information, where the third indication information is used to instruct the slice to perform quota management; The PCF processes the session establishment of the slice based on the slice session number management parameter, including: After obtaining the third indication information, the PCF processes the session establishment of the slice based on the slice session number management parameter.

12. An information processing method, characterized in that: The method is applied to SMF; the method comprises: When the connection of the user equipment is switched from 5GS to EPS, or from EPS to 5GS, the SMF sends a first message to the PCF, where the first message includes parameters of a session management policy association establishment message and third indication information, where the third indication information is used to indicate quota management for the slice, so that the PCF manages the number of slice sessions according to the maximum number of session quotas allowed for the slice contained in the slice session number management parameters and the first indication information used to indicate whether EPS and 5GS are managed in a unified manner.

13. The method according to claim 12, characterized in that The method further comprises: In the case where the number of slice sessions adopted by the PCF is not uniformly managed by EPS and 5GS, if the connection of the user equipment is switched from EPS to 5GS, the SMF receives a second message sent by the PCF, and the second message is used to reject the switching of the connection of the user equipment from EPS to 5GS.

14. An information processing device, characterized in that: The device is applied to PCF; the device comprises: an acquisition unit and a processing unit; wherein, The acquisition unit is used to obtain a slice session number management parameter sent by a network management device; the slice session number management parameter includes a maximum session number quota allowed by the slice and first indication information, and the first indication information is used to indicate whether the slice session number is uniformly managed in EPS and 5GS; The processing unit is used to process the session establishment of the slice based on the slice session number management parameter.

15. The device according to claim 14, characterized in that The processing unit is used to reduce the session number count value corresponding to the slice by 1 when the connection of the user equipment is switched from the PDU session corresponding to the 5GS to the PDN connection of the EPS, when the first indication information is used to indicate that the number of slice sessions is not uniformly managed by the EPS and 5GS.

16. The device according to claim 14, characterized in that The processing unit is used to, when the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: when the PDN connection of the user equipment switching to EPS is released, keep the session number count value corresponding to the slice unchanged.

17. The device according to claim 14, characterized in that The processing unit is used to, when the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: when the connection of the user equipment is switched from the PDN connection of EPS to the PDU session corresponding to 5GS, if the session number count value corresponding to the slice recorded by the PCF does not exceed the maximum session number quota allowed by the slice, add 1 to the session number count value corresponding to the slice.

18. The device according to claim 14, characterized in that The processing unit is used to, when the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: when the user equipment switches to the PDU session release of 5GS, reduce the session number count value corresponding to the slice by 1.

19. The device according to claim 14, characterized in that The processing unit is used to, when the first indication information is used to indicate that the number of slice sessions is not uniformly managed by EPS and 5GS: when the connection of the user equipment is switched from the PDN connection of EPS to the PDU session corresponding to 5GS, if the session number count value corresponding to the slice recorded by the PCF reaches the maximum session number quota allowed by the slice, the connection of the user equipment is not allowed to be switched from the PDN connection of EPS to the PDU session corresponding to 5GS.

20. The device according to claim 14, characterized in that The processing unit is used to, when the first indication information is used to indicate that the number of slice sessions is uniformly managed by EPS and 5GS: when the connection of the user equipment is switched between the PDU session corresponding to 5GS and the PDN connection of EPS, keep the session number count value corresponding to the slice unchanged.

21. The device according to claim 14, characterized in that The processing unit is used to, when the first indication information is used to indicate that the number of slice sessions is uniformly managed by EPS and 5GS: when the PDN connection switched by the user equipment to EPS is released, or the PDU session switched by the user equipment to 5GS is released, reduce the session number count value corresponding to the slice by 1.

22. The device according to claim 14, characterized in that The processing unit is used to, when the first indication information is used to indicate the number of slice sessions under unified management of EPS and 5GS: when a new PDU session or a new PDN connection is established, if the session number count value corresponding to the slice recorded by the PCF does not exceed the maximum session number quota allowed by the slice, the session number count value corresponding to the slice is increased by 1.

23. The device according to claim 14, characterized in that The processing unit is used to, when the first indication information is used to indicate that the number of slice sessions is uniformly managed by EPS and 5GS: when a new PDU session establishment request or a new PDN connection establishment request is received, if the session number count value corresponding to the slice recorded by the PCF reaches the maximum session number quota allowed by the slice, increase the session number count value corresponding to the slice by 1 and issue a second indication information, wherein the second indication information is used to indicate that the maximum session number quota allowed by the slice overflows, or, reject the new PDU session establishment request or the new PDN connection establishment request.

24. The device according to any one of claims 14 to 23, characterized in that The device also includes a first receiving unit, configured to receive a first message sent by a session management function SMF, wherein the first message includes parameters of a session management policy association establishment message and third indication information, wherein the third indication information is used to indicate that the slice is to perform quota management; The processing unit is used to process the session establishment of the slice based on the slice session number management parameter after obtaining the third indication information.

25. An information processing device, characterized in that: The device is applied to SMF; the device includes a sending unit, which is used to send a first message to PCF when the connection of the user equipment is switched from 5GS to EPS, or from EPS to 5GS. The first message includes parameters of the session management policy association establishment message and third indication information. The third indication information is used to indicate that the slice is quota managed, so that the PCF manages the number of slice sessions according to the maximum number of sessions allowed by the slice contained in the slice session number management parameter and the first indication information used to indicate whether EPS and 5GS are managed uniformly.

26. The device according to claim 25, characterized in that The device also includes a second receiving unit, which is used to receive a second message sent by the PCF if the connection of the user equipment is switched from EPS to 5GS when the slice session number adopted by the PCF is not uniformly managed by EPS and 5GS. The second message is used to reject the switching of the connection of the user equipment from EPS to 5GS.

27. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method described in any one of claims 1 to 11 are implemented; or, when the program is executed by a processor, the steps of the method described in claim 12 or 13 are implemented.

28. A network device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the steps of the method described in any one of claims 1 to 11 are implemented; or, when the processor executes the program, the steps of the method described in claim 12 or 13 are implemented.

Images