A network access method, device, system and product

Abstract

The application provides a network access method, device, system and product, aiming at solving the problem that the traditional threshold network selection mechanism is difficult to meet the multiple service transmission requirements of the 5G industry virtual network terminal. The method is applied to a core network device, comprising: in the case that the quality of service (QoS) state of a data flow of a terminal changes at a first frequency point, determining a second frequency point matched with the QoS state according to a first mapping table between the QoS state and a network access frequency point; and requesting a base station to schedule the data flow of the terminal to the second frequency point.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a network access method, apparatus, system and product. Background Technology

[0002] Although 5G networks are experiencing large-scale development, compared to the widely covered 4G, 5G frequency bands have limited coverage. Therefore, the old and new mobile networks will continue to coexist and complement each other for a long time.

[0003] In such a converged networking scenario, because the network selection method of 5G industry virtual network terminals still uses the traditional threshold network selection method, the 5G industry virtual network terminals can only select the network corresponding to the frequency point with the larger signal threshold value according to the signal threshold of the frequency point under the standard, which makes it difficult to meet the diverse service transmission needs of 5G industry virtual network terminals. Summary of the Invention

[0004] In view of the above problems, embodiments of this application provide a network access method, apparatus, system, and product to overcome or at least partially solve the above problems.

[0005] A first aspect of this application provides a network access method applied to a core network device, the method comprising:

[0006] When the QoS status of the terminal's data stream changes at the first frequency point, the second frequency point matching the QoS status is determined according to the first mapping table between the set QoS status and the network access frequency point.

[0007] The base station is requested to schedule the data stream of the terminal to the second frequency point.

[0008] Optionally, the core network equipment includes at least Session Management Function (SMF) and Policy Control Function (PCF);

[0009] The step of determining the second frequency point matched by the QoS state according to the first mapping table between the set QoS state and the network access frequency point includes:

[0010] The PCF receives an access policy update request carrying QoS parameters from the SMF, the QoS parameters being used to indicate the QoS status;

[0011] The PCF determines the second frequency point that matches the QoS parameters based on the QoS parameters and the first mapping table.

[0012] Optionally, the core network equipment further includes a User Plane Function (UPF);

[0013] Before the PCF receives an access policy update request carrying QoS parameters from the SMF, the method further includes:

[0014] The UPF detects whether the QoS parameter of the terminal's data stream at the first frequency point is not less than the QoS change threshold.

[0015] If the QoS parameter is not less than the QoS change threshold, the UPF sends a QoS status change indication carrying the QoS parameter to the SMF.

[0016] The SMF sends an access policy update request carrying the QoS parameters to the PCF based on the QoS status change indication.

[0017] Optionally, before the UPF detects whether the QoS parameter of the terminal's data stream at the first frequency point is not less than the QoS change threshold, the method further includes:

[0018] The PCF sends a first trigger indication carrying the QoS change threshold to the SMF according to the access policy indication in the terminal's subscription information. The first trigger indication is used to enable the SMF to send an access policy update request carrying the QoS parameters to the PCF when it receives a QoS status change indication carrying the QoS parameters from the SMF.

[0019] According to the first triggering indication, the SMF sends a second triggering indication carrying the QoS change threshold to the UPF. The second triggering indication is used to cause the UPF to send a QoS status change indication carrying the QoS parameter to the SMF when the QoS parameter is not less than the QoS change threshold.

[0020] Optionally, the core network equipment includes at least an Access Mobility Management Function (AMF) and a Policy Control Function (PCF);

[0021] The request for the base station to schedule the terminal's data stream to the second frequency point includes:

[0022] The PCF sends access policy information carrying the index value of the second frequency point to the AMF;

[0023] The AMF sends configuration update information carrying the index value of the second frequency point to the terminal according to the access policy information, so that the terminal requests the base station to schedule the data stream to the second frequency point.

[0024] A second aspect of this application provides another network access method applied to a terminal, the method comprising:

[0025] Data streams are transmitted by accessing the network corresponding to the first frequency point through the base station;

[0026] The system receives configuration update information from the core network device, carrying an index value of a second frequency point. The second frequency point is determined by the core network device based on the QoS status of the terminal's data stream at the first frequency point and a first mapping table between the set QoS status and the network access frequency point.

[0027] The system sends an access request carrying the index value of the second frequency point to the base station, so that the base station schedules the data stream of the terminal to the second frequency point.

[0028] Optionally, before generating a data stream by accessing the network corresponding to the first frequency point, the method further includes:

[0029] A subscription request is sent to the core network device to enable the core network device to generate subscription information containing an access policy indication. The access policy indication is used to enable the core network device to request the base station to schedule the terminal's data stream to the second frequency point when the QoS status of the terminal's data stream changes at the first frequency point.

[0030] A third aspect of this application provides another network access method applied to a base station, the method comprising:

[0031] Connect the terminal to the network corresponding to the first frequency point;

[0032] The system receives an access request from the terminal carrying an index value of a second frequency point, which is determined by the core network device based on the QoS status of the terminal's data stream at the first frequency point and a first mapping table between the set QoS status and the network access frequency point.

[0033] According to the second mapping table between the set frequency point index value and frequency point information, the data stream of the terminal is scheduled to the second frequency point.

[0034] A fourth aspect of this application provides a network access device applied to a core network device, the device comprising:

[0035] The core network processing module is used to determine the second frequency point matched by the QoS state according to the first mapping table between the set QoS state and the network access frequency point when the QoS state of the terminal's data stream changes at the first frequency point.

[0036] The core network request module is used to request the base station to schedule the data stream of the terminal to the second frequency point.

[0037] A fifth aspect of this application provides a network access device applied to a terminal, the device comprising:

[0038] The terminal transmission module is used to transmit data streams by accessing the network corresponding to the first frequency point through the base station;

[0039] The terminal receiving module is used to receive configuration update information from the core network device carrying the index value of the second frequency point. The second frequency point is determined by the core network device based on the QoS status of the terminal's data stream at the first frequency point and a first mapping table between the set QoS status and the network access frequency point.

[0040] The terminal sending module is used to send an access request carrying the index value of the second frequency point to the base station, so that the base station schedules the data stream of the terminal to the second frequency point.

[0041] A sixth aspect of the embodiments of this application provides a network access device applied to a base station, the device comprising:

[0042] The base station access module is used to connect the terminal to the network corresponding to the first frequency point;

[0043] The base station receiving module is used to receive an access request from the terminal carrying an index value of a second frequency point. The second frequency point is determined by the core network equipment based on the QoS status of the terminal's data stream at the first frequency point and a first mapping table between the set QoS status and the network access frequency point.

[0044] The base station scheduling module is used to schedule the data stream of the terminal to the second frequency point according to the second mapping table between the set frequency point index value and the frequency point information.

[0045] A seventh aspect of the present application provides a network access system, the system comprising: core network equipment, a terminal, and a base station;

[0046] The core network device is used to execute the network access method as described in the first aspect when the QoS status of the terminal's data stream at the first frequency point changes, in order to request the base station to schedule the terminal's data stream to the second frequency point.

[0047] An eighth aspect of this application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the steps of the network access method described in the first aspect, the second aspect, or the third aspect.

[0048] A ninth aspect of this application provides a computer-readable storage medium having a computer program / instructions stored thereon. When executed by a processor, the computer program / instructions implement the steps of the network access method as described in the first aspect; or, when executed by a processor, the computer program / instructions implement the steps of the network access method as described in the second aspect; or, when executed by a processor, the computer program / instructions implement the steps of the network access method as described in the third aspect.

[0049] A tenth aspect of this application provides a computer program product, including a computer program / instructions that, when executed by a processor, implement the steps of the network access method described in the first aspect, the second aspect, or the third aspect.

[0050] The embodiments of this application have the following advantages:

[0051] In this embodiment, when the QoS status of the terminal's data stream changes at the first frequency point, the core network device can select a second frequency point matching the current QoS status for the terminal according to the set first mapping table, and schedule the terminal's data stream to the second frequency point through the base station. Thus, by sensing the change in the terminal's service transmission requirements through the change in QoS status, and when the terminal's service transmission requirements change, it can promptly select a suitable frequency point for the terminal to access and transmit the data stream, thereby meeting the terminal's various service transmission requirements. Attached Figure Description

[0052] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0053] Figure 1 This is a schematic diagram of the existing 5G industry virtual network terminal network selection and access process;

[0054] Figure 2 This is a flowchart illustrating an implementation of a network access method according to an embodiment of this application;

[0055] Figure 3 This is a schematic diagram of an adaptive optimization access method according to an embodiment of this application;

[0056] Figure 4 This is a flowchart illustrating another network access method implemented in this application.

[0057] Figure 5This is a flowchart illustrating another network access method implemented in this application.

[0058] Figure 6 This is a schematic diagram of the structure of a network access device according to an embodiment of this application;

[0059] Figure 7 This is a schematic diagram of another network access device according to an embodiment of this application;

[0060] Figure 8 This is a schematic diagram of another network access device according to an embodiment of this application;

[0061] Figure 9 This is a schematic diagram of an electronic device according to an embodiment of this application. Detailed Implementation

[0062] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0063] While 5G networks are experiencing large-scale development, compared to the widely covered 4G, 5G frequency bands have limited coverage. For the foreseeable future, new and old mobile networks (such as 4G and 5G) will coexist and complement each other. Furthermore, due to the contiguous nature of operator frequency bands—meaning multiple operators share certain bands—5G virtual private network (VPN) services often need to operate within this complex environment of shared wireless resources.

[0064] In such a converged and shared networking scenario, traditional terminal network selection mechanisms are limited to a single mechanism, relying solely on signal thresholds for specific frequency bands. However, 5G industry virtual networks offer diverse service models, particularly in scenarios involving various IoT data transmissions. Since most terminals are fixed and cannot move, they cannot select other networks based on location changes. For example... Figure 1 The diagram shows the existing 5G industry virtual network terminal network selection and access process, which includes the following steps:

[0065] 1. When a 5G industry virtual network's UE (User Equipment) is powered on, it scans the threshold value rsrp (reference signal receiving power) of the allowed access frequency points according to the standard of its own wireless module.

[0066] 2. If the terminal (i.e., the UE) detects a high RSRP value for a certain base station, it will be forced to switch to that base station on that frequency, regardless of whether the network at that frequency can meet the terminal's service transmission type. This means the base station is... Figure 1The RAN (Radio Access Network) shown is a physical entity device.

[0067] 3. Unless the base station is in a state of extreme congestion and activates a flow control mechanism to force the terminal out of the base station, forcing the terminal to select another base station for access based on the second signal threshold, the terminal (in 5G industry virtual networks, most terminal locations are fixed) can only passively select the base station on that frequency during the entire service transmission process and cannot change its location.

[0068] Because existing terminals still use the traditional network selection method of mobile phones, it is too simplistic and cannot differentiate between terminal service transmission preferences (such as whether there is a preference for 5G, bandwidth, or latency). It uniformly selects frequencies with high signal thresholds based on the network standard. This one-size-fits-all approach fails to rationally allocate wireless resources, resulting in services that could be offloaded to 4G being squeezed onto 5G bands, and services that do not require high bandwidth occupying high-frequency resources. For example, terminals with high network quality requirements are often forced to select frequencies with high signal strength but poor network quality due to the threshold measurement mechanism, leading to abnormal service transmission situations such as dropped frames and stuttering in video transmission, and delays in AVG (Analog Devices) commands.

[0069] To address the problems existing in the aforementioned related technologies, this application proposes an adaptive optimization access scheme based on core network awareness, which selects appropriate frequency points for access for various types of terminals in 5G industry virtual networks according to the service transmission needs of the terminals and the wireless environment they are in under converged networking.

[0070] The network access method provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0071] Firstly, referring to Figure 2 The diagram shown is an implementation flowchart of a network access method provided in this application embodiment, applied to a core network device. The method may include the following steps:

[0072] Step S11: When the QoS status of the terminal's data stream at the first frequency point changes, determine the second frequency point that matches the QoS status according to the first mapping table between the set QoS status and the network access frequency point.

[0073] The first frequency point can be a network access frequency point determined according to a traditional network selection mechanism (such as a threshold network selection mechanism), or it can be a network access frequency point determined according to the network selection method based on QoS (Quality of Service) status and the first mapping table provided in this application.

[0074] In practical implementation, when the QoS status of a terminal's data stream at the first frequency point changes (e.g., data transmission quality deteriorates), the core network equipment will re-determine the access policy for the terminal based on its current QoS status and a first mapping table, thereby selecting a network access frequency point suitable for the current QoS status. It can be understood that the mapping relationship between QoS status and network access frequency points reflected in this first mapping table can be determined based on the service transmission type supported by the terminal and the network environment in which the terminal is located. For example, for a terminal primarily transmitting video data, the QoS status of the data stream can be divided according to network quality, and suitable network access frequency points (such as frequency points with network speeds lower than the terminal's current access frequency point speed, but whose network quality meets the terminal's video transmission requirements) can be matched to QoS statuses representing low network quality, thus obtaining the first mapping table. Through this first mapping table, the core network equipment can reschedule a suitable frequency point for the terminal based on the service transmission requirements (i.e., QoS status) of the terminal in its network environment and the mapping relationship between the wireless frequency points.

[0075] Step S12: Request the base station to schedule the data stream of the terminal to the second frequency point.

[0076] In practical implementation, after determining the second frequency point suitable for the current QoS state, the core network equipment can request the base station corresponding to the second frequency point to connect the terminal to the network corresponding to the second frequency point, so that the terminal can continue to transmit data using the network corresponding to the second frequency point. It can be understood that after the terminal's data stream is scheduled to the second frequency point, this second frequency point can be regarded as a new first frequency point. When the QoS state of the data stream at this new first frequency point changes, the core network equipment can execute the above steps S11 to S12, select a new second frequency point, and request the base station to schedule the terminal's data stream to the new second frequency point.

[0077] By adopting the technical solution of this application embodiment, when the QoS status of the terminal's data stream at the first frequency point changes, the core network device can select a second frequency point matching the current QoS status for the terminal according to the set first mapping table, and schedule the terminal's data stream to the second frequency point through the base station. Thus, by sensing the change in the terminal's service transmission requirements through the change in the QoS status, and when the terminal's service transmission requirements change, it can promptly select a suitable frequency point for the terminal to access and transmit the data stream, thereby meeting the terminal's various service transmission requirements.

[0078] The following combination Figure 3 The above technical solutions will be further explained below. Figure 3 As shown in the figure, this application provides an adaptive optimization access method, including:

[0079] 1. The terminal sends a subscription request to the core network equipment. The PCF (Policy Control Function) in the core network equipment sends a first trigger indication carrying a QoS change threshold to the SMF (Session Management Function) in the core network equipment according to the access policy indication in the terminal's subscription information. This first trigger indication is used to cause the SMF to send an access policy update request carrying the QoS parameters to the PCF when it receives a QoS status change indication carrying QoS parameters from the SMF. According to the first trigger indication, the SMF sends a second trigger indication carrying a QoS change threshold to the UPF (User Plane Function) in the core network equipment. This second trigger indication is used to cause the UPF to send a QoS status change indication carrying the QoS parameters to the SMF when the QoS parameters are not less than the QoS change threshold.

[0080] In practice, based on the terminal's subscription requirements on the PCF (i.e., the access policy indication in the subscription information), when the PCF establishes a session with the SMF, that is, when the PCF receives the Npcf_smpolicycontrol_request (session management policy control request) message from the SMF, it sends a data flow QoS change reporting trigger (i.e., the first trigger indication) to the SMF through the Npcf_smpolicycontrol_response (session management policy control response) message.

[0081] When SMF establishes a session with UPF through the N4 interface, it sends a QoS state change trigger (i.e., a second trigger indication) to UPF through a PCFP Session Modification Request message, requiring UPF to report this information to SMF when it detects a change in the QoS state of the data transmission stream.

[0082] Understandably, the implementation of this solution requires modifications to the UPF and PCF. The UPF needs to add the ability to sense the quality of user data stream transmission and report the current data stream's QoS parameters to the SMF via the N4 interface. After a user session is established, the SMF sends a user plane transmission QoS status change trigger to the UPF via the PFCP Session Modification Request message on the N4 interface. This trigger includes QoS change thresholds related to QoS parameters such as latency and jitter of the user plane data stream. The UPF is required to monitor the data stream, and if the QoS status deteriorates (i.e., the corresponding QoS parameters reach the QoS change threshold), it must immediately report to the SMF, which then synchronizes the information to the PCF. Simultaneously, the PCF also needs modification. The PCF needs to link the session management policy and access management policy. When it receives QoS performance degradation information from the SMF's session management information, it automatically correlates with the access management policy, updates and re-decides the access policy, thereby selecting a new network access frequency for the terminal and establishing a new wireless transmission path for data stream transmission.

[0083] 2. The UPF detects whether the QoS parameter of the data stream of the detection terminal at the first frequency point is not less than the QoS change threshold. This QoS parameter is used to indicate the QoS status. If the QoS parameter is not less than the QoS change threshold, the UPF sends a QoS status change indication carrying the QoS parameter to the SMF. The SMF sends an access policy update request carrying the QoS parameter to the PCF according to the QoS status change indication.

[0084] For example, when a terminal accesses the network, it can select frequency point A (i.e., the first frequency point) for access based on a signal threshold. Simultaneously, the AMF (Access and Mobility Management Function) in the core network equipment will report the frequency point A currently accessed by the terminal to the PCF. The AMF can report the frequency point A currently accessed by the terminal to the PCF via the Npcf_ampolicycontrol_AmPolicyAssociationCreate_Request message.

[0085] After receiving an am policy association creation request message carrying frequency point A, the PCF will return an Npcf_ampolicycontrol_AmPolicyAssociationCreate_Response (Access Policy Association Creation Response) message to the AMF. Subsequently, the SMF will establish a session with the PCF and configure relevant triggering indicators.

[0086] After the UPF is configured using the second trigger indication, the terminal begins to transmit data streams (such as video data streams). During the data transmission process between the UPF and the RAN-side equipment (i.e., the base station), the UPF detects that the terminal is performing a high-bandwidth transmission service (i.e., video data stream transmission) by parsing user packets. At this time, due to the poor quality of the wireless network at frequency point A, the video transmission requirements cannot be met (i.e., data stream QoS degradation), causing QoS parameters such as data transmission delay and packet loss rate to reach the reporting threshold (i.e., QoS change threshold).

[0087] UPF reports QoS parameters to SMF via the PCFP Session Modification Response message (i.e., QoS state change indication) on the N4 port. Upon receiving the QoS state change indication, SMF reports the QoS parameters to PCF and requests an update to the terminal's network access policy via the Npcf_SMPolicyControl_Update_Request message (i.e., access policy update request).

[0088] After becoming aware of changes in QoS parameters and QoS status, the PCF returns an Npcf_SMPolicyControl_Update_Response (Session Management Policy Control Update Response) message to the SMF.

[0089] 3. After receiving an access policy update request carrying QoS parameters from the SMF, the PCF determines the second frequency point that matches the QoS parameters based on the QoS parameters and the first mapping table.

[0090] In practice, after receiving the access policy update request from the SMF, the PCF generates a new access-side QoS policy (i.e., the second frequency point) based on the QoS parameters and the first mapping table and after policy decision-making.

[0091] 4. The PCF sends access policy information carrying the index value of the second frequency point to the AMF; the AMF sends configuration update information carrying the index value of the second frequency point to the terminal according to the access policy information, so that the terminal requests the base station to schedule the data stream to the second frequency point.

[0092] In practice, the PCF sends the RFSP (Random Frequency Selection Priority) index value (i.e., the index value of the second frequency point) that meets the terminal's service transmission requirements to the AMF via an Npcf_AMPolicyControl_Update_Request message (i.e., access policy information). Upon receiving the access policy information, the AMF returns an Npcf_AMPolicyControl_Update_Response message to the PCF and simultaneously sends a RAN ConfigurationUpdate Request message containing the RFSP index value to the terminal. The terminal then sends an RRCconnection Setup Request message carrying the RFSP index value to the base station, requesting the base station to schedule the data stream to the new frequency point. The base station then relocates the data stream to a newer frequency point with better network quality to meet the terminal's service transmission requirements and returns a RANConfiguration Update Response message to the terminal, indicating that the base station agrees to access and a new transmission channel is established on the radio side, thus completing the core network-aware adaptive frequency optimization process.

[0093] For example, when the data transmission quality of a terminal deteriorates (e.g., latency, packet loss rate, or bandwidth QoS parameters fail to meet service transmission requirements), the UPF can detect that the QoS parameters have reached the QoS change threshold. Since the SMF previously issued a second trigger indication to the UPF, the UPF will report this information to the SMF, allowing the controller to make new decisions regarding the transmission method and line, thereby optimizing the data transmission path. Specifically, when the operator activates a SIM card for a terminal in the 5G industry virtual network, it simultaneously subscribes to an access policy indication on the PCF. The PCF then sends a first trigger indication to the SMF based on the access policy indication. Upon receiving the increased latency information reported by the UPF, the SMF will synchronously update this information to the PCF. The PCF thus learns that the data transmission quality of the current terminal has deteriorated, and therefore re-determines the access policy. Based on the correspondence between the planned service usage scenarios and wireless frequency points (i.e., the first mapping table), it re-schedules suitable frequency points for the service and sends this frequency point index to the AMF. The AMF then executes the frequency point selection action. AMF sends the frequency index value to the base station through the terminal. The base station schedules the data stream to the new frequency point according to the preset mapping table (i.e., the second mapping table), thus completing the automatic frequency point optimization of data stream transmission.

[0094] Understandably, while the forms and services of virtual network terminals in the 5G industry are diverse, most terminals have fixed locations and simple network selection mechanisms, only able to select access points based on signal level thresholds. This results in poor user experience and wasted radio resources. Furthermore, due to the fragmented functions of various network elements within the core network equipment, it is impossible to provide users with real-time QoS guarantees on the radio side.

[0095] This application leverages the linkage between QoS awareness in the core network user plane and control plane, the linkage between core network session management and mobility, and the linkage between resource allocation on the core network side and the radio side. By detecting quality issues in data transmission in real time on the user forwarding plane and feeding them back to the control plane through a trigger mechanism, it provides a frequency-optimized network access method based on control plane policy decisions. This method can perform frequency optimization on top of terminal frequency (i.e., threshold) optimization. This ensures that 5G industry virtual network terminals can flexibly select networks even in fixed locations, enabling them to choose wireless networks that meet their service transmission requirements. It also achieves reasonable resource allocation on the wireless network side, preventing situations where services that can be offloaded to 4G are crowding out 5G frequency bands, or where services that do not require high bandwidth occupy high-frequency resources.

[0096] Secondly, such as Figure 4 As shown in the embodiments of this application, another network access method is also provided, applied to a terminal, the method including the following steps:

[0097] Step S21: Access the network corresponding to the first frequency point through the base station to transmit the data stream;

[0098] Step S22: Receive configuration update information from the core network device carrying the index value of the second frequency point, wherein the second frequency point is determined by the core network device based on the QoS status of the terminal's data stream at the first frequency point and the first mapping table between the set QoS status and the network access frequency point;

[0099] Step S23: Send an access request carrying the index value of the second frequency point to the base station so that the base station schedules the data stream of the terminal to the second frequency point.

[0100] By adopting the technical solution of this application embodiment, when the QoS status of the terminal's data stream at the first frequency point changes, the core network device can select a second frequency point matching the current QoS status for the terminal according to the set first mapping table, and schedule the terminal's data stream to the second frequency point through the base station. Thus, by sensing the change in the terminal's service transmission requirements through the change in the QoS status, and when the terminal's service transmission requirements change, it can promptly select a suitable frequency point for the terminal to access and transmit the data stream, thereby meeting the terminal's various service transmission requirements.

[0101] Optionally, before generating a data stream by accessing the network corresponding to the first frequency point, the method further includes:

[0102] A subscription request is sent to the core network device to enable the core network device to generate subscription information containing an access policy indication. The access policy indication is used to enable the core network device to request the base station to schedule the terminal's data stream to the second frequency point when the QoS status of the terminal's data stream changes at the first frequency point.

[0103] The implementation methods of the network access method on the terminal side are similar to those in the relevant embodiments of the network access method on the core network equipment side, and will not be described in detail here.

[0104] Thirdly, such as Figure 5 As shown in the embodiments of this application, another network access method is provided, applied to a base station, the method comprising the following steps:

[0105] Step S31: Connect the terminal to the network corresponding to the first frequency point;

[0106] Step S32: Receive an access request from the terminal carrying the index value of a second frequency point, wherein the second frequency point is determined by the core network device based on the QoS status of the terminal's data stream at the first frequency point and a first mapping table between the set QoS status and the network access frequency point;

[0107] Step S33: According to the second mapping table between the set frequency point index value and frequency point information, schedule the data stream of the terminal to the second frequency point.

[0108] By adopting the technical solution of this application embodiment, when the QoS status of the terminal's data stream at the first frequency point changes, the core network device can select a second frequency point matching the current QoS status for the terminal according to the set first mapping table, and schedule the terminal's data stream to the second frequency point through the base station. Thus, by sensing the change in the terminal's service transmission requirements through the change in the QoS status, and when the terminal's service transmission requirements change, it can promptly select a suitable frequency point for the terminal to access and transmit the data stream, thereby meeting the terminal's various service transmission requirements.

[0109] The implementation methods of the network access method on the base station side are similar to those in the relevant embodiments of the network access method on the core network equipment side, and will not be described in detail here.

[0110] For the sake of simplicity, the method embodiments are described as a series of actions. However, those skilled in the art should understand that the embodiments of this application are not limited to the described order of actions, because according to the embodiments of this application, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions involved are not necessarily essential to the embodiments of this application.

[0111] Fourthly, Figure 6 This is a schematic diagram of a network access device according to an embodiment of this application, applied to core network equipment. The device includes:

[0112] The core network processing module is used to determine the second frequency point matched by the QoS state according to the first mapping table between the set QoS state and the network access frequency point when the QoS state of the terminal's data stream changes at the first frequency point.

[0113] The core network request module is used to request the base station to schedule the data stream of the terminal to the second frequency point.

[0114] By adopting the technical solution of this application embodiment, when the QoS status of the terminal's data stream at the first frequency point changes, the core network device can select a second frequency point matching the current QoS status for the terminal according to the set first mapping table, and schedule the terminal's data stream to the second frequency point through the base station. Thus, by sensing the change in the terminal's service transmission requirements through the change in the QoS status, and when the terminal's service transmission requirements change, it can promptly select a suitable frequency point for the terminal to access and transmit the data stream, thereby meeting the terminal's various service transmission requirements.

[0115] Optionally, the core network equipment includes at least Session Management Function (SMF) and Policy Control Function (PCF);

[0116] The core network processing module is specifically used for:

[0117] The PCF receives an access policy update request carrying QoS parameters from the SMF, the QoS parameters being used to indicate the QoS status;

[0118] The PCF determines the second frequency point that matches the QoS parameters based on the QoS parameters and the first mapping table.

[0119] Optionally, the core network equipment further includes a User Plane Function (UPF);

[0120] Before the PCF receives an access policy update request carrying QoS parameters from the SMF, the device further includes a core network detection module.

[0121] The core network detection module is used for:

[0122] The UPF detects whether the QoS parameter of the terminal's data stream at the first frequency point is not less than the QoS change threshold.

[0123] If the QoS parameter is not less than the QoS change threshold, the UPF sends a QoS status change indication carrying the QoS parameter to the SMF.

[0124] The SMF sends an access policy update request carrying the QoS parameters to the PCF based on the QoS status change indication.

[0125] Optionally, before the UPF detects whether the QoS parameter of the terminal's data stream at the first frequency point is not less than the QoS change threshold, the device further includes a core network configuration module;

[0126] The core network configuration module is used for:

[0127] The PCF sends a first trigger indication carrying the QoS change threshold to the SMF according to the access policy indication in the terminal's subscription information. The first trigger indication is used to enable the SMF to send an access policy update request carrying the QoS parameters to the PCF when it receives a QoS status change indication carrying the QoS parameters from the SMF.

[0128] According to the first triggering indication, the SMF sends a second triggering indication carrying the QoS change threshold to the UPF. The second triggering indication is used to cause the UPF to send a QoS status change indication carrying the QoS parameter to the SMF when the QoS parameter is not less than the QoS change threshold.

[0129] Optionally, the core network equipment includes at least an Access Mobility Management Function (AMF) and a Policy Control Function (PCF);

[0130] The core network request module is used for:

[0131] The PCF sends access policy information carrying the index value of the second frequency point to the AMF;

[0132] The AMF sends configuration update information carrying the index value of the second frequency point to the terminal according to the access policy information, so that the terminal requests the base station to schedule the data stream to the second frequency point.

[0133] Fifthly, Figure 7 This is a schematic diagram of another network access device according to an embodiment of this application, applied to a terminal. The device includes:

[0134] The terminal transmission module is used to transmit data streams by accessing the network corresponding to the first frequency point through the base station;

[0135] The terminal receiving module is used to receive configuration update information from the core network device carrying the index value of the second frequency point. The second frequency point is determined by the core network device based on the QoS status of the terminal's data stream at the first frequency point and a first mapping table between the set QoS status and the network access frequency point.

[0136] The terminal sending module is used to send an access request carrying the index value of the second frequency point to the base station, so that the base station schedules the data stream of the terminal to the second frequency point.

[0137] By adopting the technical solution of this application embodiment, when the QoS status of the terminal's data stream at the first frequency point changes, the core network device can select a second frequency point matching the current QoS status for the terminal according to the set first mapping table, and schedule the terminal's data stream to the second frequency point through the base station. Thus, by sensing the change in the terminal's service transmission requirements through the change in the QoS status, and when the terminal's service transmission requirements change, it can promptly select a suitable frequency point for the terminal to access and transmit the data stream, thereby meeting the terminal's various service transmission requirements.

[0138] Optionally, before generating a data stream by accessing the network corresponding to the first frequency point, the device further includes a terminal subscription module;

[0139] The terminal signing module is used for:

[0140] A subscription request is sent to the core network device to enable the core network device to generate subscription information containing an access policy indication. The access policy indication is used to enable the core network device to request the base station to schedule the terminal's data stream to the second frequency point when the QoS status of the terminal's data stream changes at the first frequency point.

[0141] Sixth aspect, Figure 8 This is a schematic diagram of another network access device according to an embodiment of this application, applied to a base station. The device includes:

[0142] The base station access module is used to connect the terminal to the network corresponding to the first frequency point;

[0143] The base station receiving module is used to receive an access request from the terminal carrying an index value of a second frequency point. The second frequency point is determined by the core network equipment based on the QoS status of the terminal's data stream at the first frequency point and a first mapping table between the set QoS status and the network access frequency point.

[0144] The base station scheduling module is used to schedule the data stream of the terminal to the second frequency point according to the second mapping table between the set frequency point index value and the frequency point information.

[0145] By adopting the technical solution of this application embodiment, when the QoS status of the terminal's data stream at the first frequency point changes, the core network device can select a second frequency point matching the current QoS status for the terminal according to the set first mapping table, and schedule the terminal's data stream to the second frequency point through the base station. Thus, by sensing the change in the terminal's service transmission requirements through the change in the QoS status, and when the terminal's service transmission requirements change, it can promptly select a suitable frequency point for the terminal to access and transmit the data stream, thereby meeting the terminal's various service transmission requirements.

[0146] In a seventh aspect, embodiments of this application also provide a network access system, the system comprising: core network equipment, a terminal, and a base station;

[0147] The core network device is used to execute the network access method as described in the first aspect when the QoS status of the terminal's data stream at the first frequency point changes, in order to request the base station to schedule the terminal's data stream to the second frequency point.

[0148] It should be noted that the device embodiments are similar to the method embodiments, so the description is relatively simple. For relevant details, please refer to the method embodiments.

[0149] This application also provides an electronic device, see embodiments thereof. Figure 9 , Figure 9This is a schematic diagram of the electronic device proposed in an embodiment of this application. Figure 9 As shown, the electronic device 100 includes a memory 110 and a processor 120. The memory 110 and the processor 120 are connected via a bus for communication. The memory 110 stores a computer program that can run on the processor 120 to implement the steps in the network access method disclosed in the embodiments of this application.

[0150] This application also provides a computer-readable storage medium storing a computer program / instructions thereon, which, when executed by a processor, implements the network access method disclosed in this application.

[0151] This application also provides a computer program product, including a computer program / instructions that, when executed by a processor, implement the network access method disclosed in this application.

[0152] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0153] Those skilled in the art will understand that embodiments of this application can be provided as methods, apparatus, or computer program products. Therefore, embodiments of this application can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, embodiments of this application can take the form of computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0154] This application describes embodiments of methods, systems, devices, storage media, and program products according to embodiments of this application with reference to flowchart illustrations and / or block diagrams. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0155] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing terminal device to operate in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0156] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal equipment, causing a series of operational steps to be performed on the computer or other programmable terminal equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable terminal equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0157] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0158] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0159] The above provides a detailed description of a network access method, apparatus, system, and product provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A network access method, characterized in that, Applied to core network equipment, the method includes: When the QoS status of the terminal's data stream changes at the first frequency point, the second frequency point matching the QoS status is determined according to the first mapping table between the set QoS status and the network access frequency point. The base station is requested to schedule the data stream of the terminal to the second frequency point; The core network equipment includes at least Session Management Function (SMF) and Policy Control Function (PCF); The step of determining the second frequency point matched by the QoS state according to the first mapping table between the set QoS state and the network access frequency point includes: The PCF receives an access policy update request carrying QoS parameters from the SMF, the QoS parameters being used to indicate the QoS status; The PCF determines the second frequency point matched by the QoS parameters based on the QoS parameters and the first mapping table; The PCF links the session management policy and the access management policy. When it receives QoS performance degradation information in the session management information reported by the SMF, it automatically associates the access management policy and updates and re-decides the access policy. The core network equipment also includes a User Plane Function (UPF); Before the PCF receives an access policy update request carrying QoS parameters from the SMF, the method further includes: The UPF detects whether the QoS parameter of the terminal's data stream at the first frequency point is not less than the QoS change threshold. If the QoS parameter is not less than the QoS change threshold, the UPF sends a QoS status change indication carrying the QoS parameter to the SMF. The SMF sends an access policy update request carrying the QoS parameters to the PCF according to the QoS status change indication; The core network equipment also includes an Access Mobility Management Function (AMF); The request for the base station to schedule the terminal's data stream to the second frequency point includes: The PCF sends access policy information carrying the index value of the second frequency point to the AMF; The AMF sends configuration update information carrying the index value of the second frequency point to the terminal according to the access policy information, so that the terminal requests the base station to schedule the data stream to the second frequency point.

2. The method according to claim 1, characterized in that, Before the UPF detects whether the QoS parameter of the terminal's data stream at the first frequency point is not less than the QoS change threshold, the method further includes: The PCF sends a first trigger indication carrying the QoS change threshold to the SMF according to the access policy indication in the terminal's subscription information. The first trigger indication is used to enable the SMF to send an access policy update request carrying the QoS parameters to the PCF when it receives a QoS status change indication carrying the QoS parameters from the SMF. According to the first triggering indication, the SMF sends a second triggering indication carrying the QoS change threshold to the UPF. The second triggering indication is used to cause the UPF to send a QoS status change indication carrying the QoS parameter to the SMF when the QoS parameter is not less than the QoS change threshold.

3. A network access method, characterized in that, Applied to a terminal, the method includes: Data streams are transmitted by accessing the network corresponding to the first frequency point through the base station; Receive configuration update information from the core network equipment carrying an index value of a second frequency point, wherein the second frequency point is determined by the network access method of claim 1; The system sends an access request carrying the index value of the second frequency point to the base station, so that the base station schedules the data stream of the terminal to the second frequency point.

4. The method according to claim 3, characterized in that, Before generating a data stream by accessing the network corresponding to the first frequency point, the method further includes: A subscription request is sent to the core network device to enable the core network device to generate subscription information containing an access policy indication. The access policy indication is used to enable the core network device to request the base station to schedule the terminal's data stream to the second frequency point when the QoS status of the terminal's data stream changes at the first frequency point.

5. A network access method, characterized in that, Applied to a base station, the method includes: Connect the terminal to the network corresponding to the first frequency point; Receive an access request from the terminal carrying an index value of a second frequency point, wherein the second frequency point is determined by the network access method of claim 1; According to the second mapping table between the set frequency point index value and frequency point information, the data stream of the terminal is scheduled to the second frequency point.

6. A network access device, characterized in that, Applied to core network equipment, the device includes: The core network processing module is used to determine the second frequency point matched by the QoS state according to the first mapping table between the set QoS state and the network access frequency point when the QoS state of the terminal's data stream changes at the first frequency point. The core network request module is used to request the base station to schedule the data stream of the terminal to the second frequency point; The core network equipment includes at least Session Management Function (SMF) and Policy Control Function (PCF); The core network processing module is also used for: The PCF receives an access policy update request carrying QoS parameters from the SMF, the QoS parameters being used to indicate the QoS status; The PCF determines the second frequency point matched by the QoS parameters based on the QoS parameters and the first mapping table; The PCF links the session management policy and the access management policy. When it receives QoS performance degradation information in the session management information reported by the SMF, it automatically associates the access management policy and updates and re-decides the access policy. The device further includes a core network detection module, the core network detection module being used for: UPF detects whether the QoS parameter of the terminal's data stream at the first frequency point is not less than the QoS change threshold; If the QoS parameter is not less than the QoS change threshold, the UPF sends a QoS status change indication carrying the QoS parameter to the SMF. The SMF sends an access policy update request carrying the QoS parameters to the PCF according to the QoS status change indication; The core network equipment includes at least an Access Mobility Management Function (AMF) and a Policy Control Function (PCF); The core network request module is used for: The PCF sends access policy information carrying the index value of the second frequency point to the AMF; The AMF sends configuration update information carrying the index value of the second frequency point to the terminal according to the access policy information, so that the terminal requests the base station to schedule the data stream to the second frequency point.

7. A network access device, characterized in that, Applied to a terminal, the device includes: The terminal transmission module is used to transmit data streams by accessing the network corresponding to the first frequency point through the base station; The terminal receiving module is used to receive configuration update information from the core network equipment carrying the index value of a second frequency point, wherein the second frequency point is determined by the network access method according to claim 1; The terminal sending module is used to send an access request carrying the index value of the second frequency point to the base station, so that the base station schedules the data stream of the terminal to the second frequency point.

8. A network access device, characterized in that, Applied to a base station, the device includes: The base station access module is used to connect the terminal to the network corresponding to the first frequency point; A base station receiving module is used to receive an access request from the terminal carrying an index value of a second frequency point, wherein the second frequency point is determined by the network access method according to claim 1; The base station scheduling module is used to schedule the data stream of the terminal to the second frequency point according to the second mapping table between the set frequency point index value and the frequency point information.

9. A network access system, characterized in that, The system includes: core network equipment, terminals, and base stations; The core network device is used to execute the network access method as described in claim 1 or 2 when the QoS status of the terminal's data stream at the first frequency point changes, in order to request the base station to schedule the terminal's data stream to the second frequency point.

10. An electronic 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, it implements the steps of the network access method according to claim 1 or 2, or the steps of the network access method according to claim 3 or 4, or the steps of the network access method according to claim 5.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the program implements the steps of the network access method according to claim 1 or 2, or the steps of the network access method according to claim 3 or 4, or the steps of the network access method according to claim 5.

12. A computer program product comprising a computer program / instructions, characterized in that, When the computer program / instruction is executed by the processor, it implements the steps of the network access method according to claim 1 or 2, or the steps of the network access method according to claim 3 or 4, or the steps of the network access method according to claim 5.

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