CN117998468A

CN117998468A - Data transmission method and related equipment

Info

Publication number: CN117998468A
Application number: CN202211338762.3A
Authority: CN
Inventors: 刘玉冰; 龙彪
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2024-05-07
Also published as: WO2024087942A1

Abstract

The disclosure provides a data transmission method, which relates to the technical field of communication, and comprises the following steps: obtaining a data packet delay budget PDB difference value; generating a PDB list according to the PDB difference value, wherein the PDB list contains PDB values for each service data flow; and sending the PCC rule comprising the PDB list to a Session Management Function (SMF) network element, so that the SMF network element generates a QoS configuration file for the QoS flow and sends the QoS configuration file to the access network device through the AMF network element, wherein the QoS configuration file comprises the PDB list. The method ensures that the PDB value between service data flows can be fully ensured by configuring the data packet delay budget PDB difference value for the service data flows. In PDU conversation scene, network side can control time delay of data transmission to guarantee data packet reordering of network side to maximum extent so as to guarantee whole throughput and transmission performance of communication system.

Description

Data transmission method and related equipment

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a data transmission method, a PCF (Policy Control function ) network element, an SMF (Session Management function ) network element, an access network device, a computer-readable storage medium, and an electronic device.

Background

In the PDU (Protocol Data Unit ) session scenario, the reordering of UDP (User Datagram Protocol ) packets can be done by an upper layer protocol, such as RTP (Real-time Transport Protocol ), but the RTP protocol is a Real-time transport protocol, is very sensitive to delay and jitter, and does not have a large time window to reorder. Thus, there is a need to control the delay and jitter of the good paths to ensure reordering of the packets.

The present disclosure proposes a corresponding solution to solve the technical problem of guaranteeing a reordering requirement for data packet transmission from a network side.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The disclosure aims to provide a data transmission method, a PCF network element, an SMF network element, an access network device, a computer readable storage medium and an electronic device, so as to at least solve the technical problem of reordering of auxiliary received data packets at a network side in a PDU session scene in the related art.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

The technical scheme of the present disclosure is as follows:

According to one aspect of the present disclosure, there is provided a data transmission method performed by a PCF network element of a reception policy control function, the method comprising: obtaining a data packet delay budget PDB difference value; generating a PDB list according to the PDB difference value, wherein the PDB list contains PDB values for each service data flow; and sending policy control and charging PCC rules comprising a PDB list to the session management function, SMF, network element to cause the SMF network element to generate a QoS profile for the QoS flow and send the QoS profile to the access network device via the access and mobility management function, AMF, network element, wherein the QoS profile comprises the PDB list.

In some embodiments of the present disclosure, the step of obtaining the packet delay budget PDB difference comprises: and receiving a quality of service (QoS) parameter request sent by an Application Function (AF) network element and a data Packet Delay Budget (PDB) difference indicated by the QoS parameter request.

In some embodiments of the present disclosure, the step of obtaining the packet delay budget PDB difference comprises: receiving a QoS parameter request sent by an AF network element of an application function; and acquiring a corresponding data packet delay budget PDB difference value from the UDR network element according to the QoS parameter request.

In some embodiments of the present disclosure, the step of generating the PDB list from the PDB difference value includes: and generating a PDB list composed of PDB values corresponding to each service data flow according to the PDB difference value indicated by the QoS parameter request.

In some embodiments of the present disclosure, an access network device includes: one of a 5G access node 5G-AN accessed through a third generation partnership project 3GPP, AN interworking function network element N3IWF accessed through a non-3 GPP, and a trusted non-3 GPP gateway function network element TNGF accessed through a non-3 GPP; or a 5G access node 5G-AN accessed by the third generation partnership project 3GPP and one of the following: an interworking function network element N3IWF through non-3 GPP access and a trusted non-3 GPP gateway function network element TNGF through non-3 GPP access.

According to one aspect of the present disclosure, there is provided a data transmission method performed by a session management function, SMF, network element, comprising: receiving PCC rules sent by PCF network elements of a policy control function, wherein the PCC rules comprise PDB lists generated by the PCF network elements according to PDB difference values of data packet delay budgets, and the PDB lists contain PDB values for each service data flow; generating a QoS configuration file for the QoS flow, wherein the QoS configuration file comprises a PDB list; and sending the QoS configuration file to access network equipment through an access and mobility management function AMF network element.

In some embodiments of the present disclosure, an access network device includes: one of a 5G access node 5G-AN accessed through a third generation partnership project 3GPP, AN interworking function network element N3IWF accessed through a non-3 GPP, and a trusted non-3 GPP gateway function network element TNGF accessed through a non-3 GPP; or a 5G access node 5G-AN accessed by the third generation partnership project 3 GPP), and one of the following: an interworking function network element N3IWF through non-3 GPP access and a trusted non-3 GPP gateway function network element TNGF through non-3 GPP access.

According to one aspect of the present disclosure, there is provided a data transmission method performed by an access network device, comprising: and receiving a QoS configuration file sent by a session management function network element SMF through a multi-access protocol data unit PDU session path, wherein the QoS configuration file comprises a PDB list, the QoS configuration file is generated by the SMF network element for different QoS flows, and the PDB list is generated by the PCF network element according to the PDB difference value.

According to yet another aspect of the present disclosure, there is provided a PCF network element of a reception policy control function, the network element comprising: the PDB difference value acquisition module is used for acquiring a data packet delay budget PDB difference value; the PCC policy control and charging rule generation module is used for generating a PDB list according to the PDB difference value, wherein the PDB list contains PDB values for each service data flow; and a PCC rule sending module, configured to send a PCC rule including a PDB list to a session management function SMF network element, so that the SMF network element generates a QoS profile for the QoS flow and sends the QoS profile to the access network device via the access and mobility management function AMF network element, where the QoS profile includes the PDB list.

According to yet another aspect of the present disclosure, there is provided a session management function, SMF, network element, the network element comprising: the policy receiving module is used for receiving PCC rules sent by the PCF network element of the policy control function, wherein the PCC rules comprise a PDB list generated by the PCF network element according to the PDB difference value of the data packet delay budget, and the PDB list comprises a PDB value for each service data flow; a QoS profile generation module, configured to generate a QoS profile for a QoS flow, where the QoS profile includes a PDB list; and the QoS configuration file sending module is used for sending the QoS configuration file to the access network equipment through the access and mobility management function AMF network element.

According to yet another aspect of the present disclosure, there is provided an access network device comprising: and the QoS configuration file receiving module is used for receiving the QoS configuration file sent by the session management function network element SMF through the session path of the multi-access protocol data unit PDU, wherein the QoS configuration file comprises a PDB list, the QoS configuration file is generated by the SMF network element for different QoS flows, and the PDB list is generated by the PCF network element according to the PDB difference value.

According to still another aspect of the present disclosure, there is provided an electronic apparatus including: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform the data transmission method described above via execution of the executable instructions.

According to yet another aspect of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the above-described data transmission method.

The method of the embodiment of the disclosure ensures that the PDB values among the service data flows can be fully ensured by configuring the data packet delay budget PDB difference value for the service data flows. In PDU conversation scene, network side can control time delay of data transmission to guarantee data packet reordering to maximum extent so as to guarantee whole throughput and transmission performance of communication system.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 is a schematic diagram illustrating a structure of a data transmission system to which a data transmission method is applied in one embodiment of the present disclosure.

Fig. 2 is a flow chart illustrating a data transmission method performed by a PCF network element in an embodiment of the disclosure.

Fig. 3 is a flow chart illustrating a data transmission method performed by an SMF network element in an embodiment of the present disclosure.

Fig. 4 is a signaling interaction schematic diagram of a data transmission method in an embodiment of the disclosure.

Fig. 5 shows a schematic structural diagram of a PCF network element in an embodiment of the disclosure.

Fig. 6 shows a schematic structural diagram of an SMF network element in an embodiment of the present disclosure.

Fig. 7 shows a schematic structural diagram of an access network device in an embodiment of the disclosure.

Fig. 8 shows a schematic block diagram of an electronic device of a data transmission method in an embodiment of the disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present disclosure, the meaning of "a plurality" is at least two, such as two, three, etc., unless explicitly specified otherwise.

In view of the technical problems in the related art, embodiments of the present disclosure provide an encrypted traffic detection method, which is used to at least solve one or all of the technical problems.

It should be noted that, the terms or terms related to the embodiments of the present application may be referred to each other, and are not repeated.

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

Fig. 1 is a schematic diagram of a data transmission system in one embodiment of the present disclosure, where the data transmission method and related devices in various embodiments of the present disclosure may be applied.

As shown in fig. 1, the data transmission system 100 may include: UE (User Equipment) 110 and data network 120, AMF (ACCESS AND Mobility Management Function ) network element 130, SMF network element 140, PCF (Policy Control function, policy and control function) network element 150, NEF network element 160, AF network element 170, UDR network element 180, UPF network element 190, and PMF (Performance Monitor Function, performance monitoring function) network element 190-1.

The UE terminal 110 may be a mobile terminal such as a mobile phone, a game console, a tablet computer, an e-book reader, smart glasses, an MP4 (Moving Picture Experts Group Audio Layer IV, dynamic image expert compression standard audio layer 4) player, a smart home device, an AR (Augmented Reality) device, a VR (Virtual Reality) device, or the like, or the terminal 110 may be a personal computer (Personal Computer, PC), such as a laptop portable computer, a desktop computer, and the like.

In addition, UE 110 may be configured to implement radio access related functionality, which may include third generation partnership project (3rd generation partnership project,3GPP) access networks and non-3GPP access networks. The network device providing the Access service for the UE 110 may be a device for communicating with a mobile device, where the network device may be an Access Point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, a relay station or an Access Point, a vehicle device, a wearable device, a network device (gNB) in NR network, or a network device in PLMN network of future evolution, etc.

Among other things, the data network 120 (DN) may refer to a service network that provides a data transmission service for a user, such as an IP multimedia service (IP multimedia-MEDIA SERVICE, IMS), the internet, etc.

Wherein, the AMF network element 130: the core network control plane network element is mainly responsible for mobility management in the mobile network, such as user location update, user registration network, user handover, etc.

Wherein the SMF network element 140: the core network control surface network element is mainly responsible for session management in the mobile network, such as PDU session establishment, modification and release; specific functions are for example assigning IP addresses to users, selecting UPFs providing message forwarding functions, etc.

Wherein PCF network element 150: the core network Control plane network element mainly supports providing a unified Policy framework to Control network behavior, providing Policy rules to the Control layer network function, and is responsible for acquiring user subscription information related to Policy decisions, for example, PCF network element 150 may generate and send PCC rules (Policy AND CHARGING Control ) to SMF network element 140, SMF network element 140 may generate and send N4 rules to UPF network element 190 according to the received PCC rules, and generate and send ATSSS rules to AMF network element 130 (ACCESS TRAFFIC STEERING, switching, splitting), and AMF network element 130 may be capable of forwarding ATSSS rules to UE 110.

Wherein, the NEF network element 160: the core network control surface network element is mainly used for being responsible for the outward opening of the mobile network capability.

Wherein the AF network element 170: mainly supporting interactions with the 3GPP core network to provide services, for example, AF network element 170 sends a quality of service QoS parameter request to PCF network element 150 via NEF network element 160.

Wherein the UDR network element 180: the unified data warehouse function Unified Data Repository is configured to store subscription data or read subscription data and PCF network element 150 stores policy data or reads policy data.

The UPF network element 190 is responsible for forwarding and receiving user data in the UE, and the PMF (Performance Monitor Function, performance monitoring function) network element 190-1 is used to monitor the forwarding and receiving performance.

Further, in the present application, the communication system may further include: authentication, authorization, and accounting (authentication authorization and accounting, AAA) servers, AAA servers (servers) may also be referred to as AAA-S. The AAA-S may communicate with AMF network element 140b via an intermediary network element supporting AAA-S communication with AMF network element 140b, which may be AUSF network element 140c, NEF network element 140i, nsaaf network element or other network elements for authentication and authorization procedures, etc. Optionally, the communication system may further include: an authentication, authorization and accounting proxy (authentication authorization and accounting proxy, AAA-P). When the AAA-S communicates with the AMF network element 140b, the AAA-S may communicate with the AAA-P first, and the AAA-P sends the communication information of the AAA-S to the AMF network element 140b through intermediate network elements such as AUSF network element 140c, NEF network element 140i, or NSSAAF network element; similarly, AMF network element 140b sends the communication information to AAA-P via AUSF network element 140c, NEF network element 140i, or NSSAAF network element, and the like, and the communication information is sent to AAA-S via AAA-P.

Hereinafter, each step of the data transmission method in the present exemplary embodiment will be described in more detail with reference to the accompanying drawings and examples.

Fig. 2 shows a flowchart of a data transmission method in an embodiment of the present disclosure. The method provided by the embodiment of the disclosure can be applied to the PCF network element shown in fig. 1.

As shown in fig. 2, the method 200 may include the steps of:

in step S210, a packet delay budget PDB difference is obtained.

Wherein the PDB (PACKET DELAY Budget) difference is the maximum difference between the proposed PDB values between the service data flows (SERVICE DATA flows, SDFs).

In step S220, a PDB list is generated according to the PDB difference value, wherein the PDB list contains PDB values for each service data flow.

For example, if the PDB difference is 2 and the generated PDB list includes PDB corresponding to SDF1 with a value of 5, the value of PDB corresponding to SDF2 included in the PDB list does not exceed 7.

In step S230, policy control and charging PCC rules including the PDB list are sent to the session management function SMF network element, such that the SMF network element generates a QoS profile for the QoS flow and sends the QoS profile to the access network device via the access and mobility management function AMF network element, wherein the QoS profile includes the PDB list.

The QoS profile is a transmission condition allocated to a QoS flow by mapping the service data flow to the QoS flow and determining a transmission condition required by the QoS flow according to an identifier of the QoS flow.

The method of the embodiment of the disclosure ensures that the PDB values among the SDFs of the service data flows can be fully ensured by configuring the PDB difference value of the data packet delay budget for the service data flows. In PDU conversation scene, network side can control time delay of data transmission, guarantee data packet reorder to maximum extent, and further guarantee whole throughput and transmission performance of communication system.

The method for performing packet reordering is not particularly limited in this example, and those skilled in the art can refer to the description in the related art when the technical scheme of the present application is put into practice.

In some embodiments of the present disclosure, step S210 may include receiving a quality of service QoS parameter request sent by the application function AF network element, and a packet delay budget PDB difference indicated by the QoS parameter request.

Wherein, the AF network element can send the QoS parameter request of quality of service to the PCF network element through the NEF network element, and the parameter request also comprises the PDB maximum difference value between the service data flows. The PDB difference value is indicated through the QoS parameter request, so that the PCF network element does not need to acquire strategy data, and signaling overhead is saved.

In some embodiments of the present disclosure, step S210 may also include receiving a quality of service QoS parameter request sent by the application function AF network element; and acquiring a corresponding data packet delay budget PDB difference value from the UDR network element according to the QoS parameter request.

The PDB difference value may be configured in the UDR network element in advance as policy data, so that the PCF network element obtains the PDB difference value from the UDR when generating the policy. The advantage of configuring the PDB strategy in the UDR system in advance can not only improve the data processing speed and reliability through the UDR, but also save the traffic overhead in the strategy configuration process in the actual strategy configuration process.

In some embodiments of the present disclosure, the step of generating the PDB list from the PDB difference value includes: and generating a PDB list composed of PDB values corresponding to the SDF of each service data flow according to the PDB difference value indicated by the QoS parameter request.

In some embodiments of the present disclosure, an access network device may include: one of a 5G access node 5G-AN accessed through a third generation partnership project 3GPP, AN interworking function network element N3IWF accessed through a non-3 GPP, and a trusted non-3 GPP gateway function network element TNGF accessed through a non-3 GPP; or a 5G access node 5G-AN accessed by the third generation partnership project 3GPP and at least one of: an interworking function network element N3IWF for non-3 GPP access and a trusted non-3 GPP gateway function network element TNGF.

The embodiment of the disclosure can solve the problem of data packet transmission of a network side when non-3 GPP and 3GPP are simultaneously accessed, so that the PDB value between service data flows can be fully ensured no matter on which access path the service data flows are transmitted, thereby ensuring the requirement of reordering the data packets of the network side under multiple access paths.

Fig. 3 is a flow chart illustrating a data transmission method according to an embodiment of the disclosure. The method provided by the embodiment of the disclosure can be applied to the SMF network element shown in fig. 1.

As shown in fig. 3, the method 300 may include the steps of:

in step S310, a PCC rule sent by a PCF network element of the policy control function is received, where the PCC rule includes a PDB list generated by the PCF network element according to the PDB difference value, where the PDB list contains a PDB value for each service data flow.

In step S320, a QoS profile is generated for the QoS flow, wherein the QoS profile contains a PDB list.

In step S330, the QoS profile is sent to the access network device via the access and mobility management function AMF network element.

The method of the embodiment of the disclosure ensures that the PDB difference between the SDFs of the service data flows can be fully ensured by configuring the PDB difference of the data packet delay budget for the service data flows. In PDU conversation scene, network side can control time delay of data transmission to guarantee data packet reordering to maximum extent so as to guarantee whole throughput and transmission performance of communication system.

In some embodiments of the present disclosure, an access network device may include: one of a 5G access node 5G-AN accessed through a third generation partnership project 3GPP, AN interworking function network element N3IWF accessed through a non-3 GPP, and a trusted non-3 GPP gateway function network element TNGF accessed through a non-3 GPP; or a 5G access node 5G-AN accessed by the third generation partnership project 3 GPP), and one of the following: an interworking function network element N3IWF through non-3 GPP access and a trusted non-3 GPP gateway function network element TNGF through non-3 GPP access. By solving the transmission problem of the network side when the non-3 GPP and the 3GPP are simultaneously accessed, the PDB value between the service data flows can be fully ensured no matter on which access path the service data flows are transmitted, and the requirement of reordering the network side data packets under multiple access paths can be ensured. Further, the method of the embodiment also increases the flexibility and reliability of the communication network through multiple access paths.

Fig. 4 is a signaling interaction schematic diagram of a data transmission method in an embodiment of the disclosure. As shown in fig. 4, the method 400 may include the steps of:

In step S410, a MA PDU session is established by the UE with the access network device (5G-AN and N3 IWF/TNGF).

Wherein the UE establishes a multiple access PDU session and adopts a steering mode such as load balancing such that data packets are transmitted on two access paths (3 GPP and non-3 GPP).

In step S420, the AF network element sends a message to the PCF network element requesting QoS parameters and providing a suggested PDB difference value.

The PDB difference value is the maximum PDB difference value, and may also be referred to as a PDB difference threshold.

In some embodiments of the present disclosure, the PDB difference value may also be configured in advance in the UDR network element as policy data, when the AF network element requests the QoS parameter and indicates the service type thereof, the PCF network element obtains the PDB difference value from the UDR network element when generating the policy, and generates the corresponding policy.

In step S430, the PCF network element generates a PCC rule with reference to the PDB difference value sent by the AF network element, where the PCC rule includes a PDB list generated for each service data flow according to the PDB difference value.

In step S440, the generated PCC rule is sent by the PCF network element to the SMF network element, wherein the PCC rule comprises a PDB list generated for each service data flow.

In step S450, after receiving the PCC rule, the SMF network element generates a corresponding QoS profile according to the received PDB list generated for each service data flow.

In step S460, the SMF network element sends the generated QoS profile to the 5G-AN and the N3IWF/TNGF through the AMF network element.

Wherein the 5G access node (5G-AN) provides connectivity for the UE from the 3GPP access to the core network.

Wherein the Non-3GPP access interworking function (N3 IWF, non-3GPP interworking function) and/or the Trusted Non-3GPP gateway function (TNGF, trusted Non-3GPP Gateway Function) provide a unified connection for the UE from the Non-3GPP access to the core network.

Fig. 5 shows a schematic structural diagram of a PCF network element in an embodiment of the disclosure. As shown in fig. 5, the network element 500 includes:

A PDB difference value obtaining module 510, configured to obtain a packet delay budget PDB difference value; a PCC policy generation module 520 configured to generate a PDB list according to the PDB differences, where the PDB list includes the PDB differences for each service data flow; and a PCC rule sending module 530, configured to send a PCC rule including the PDB list to a session management function SMF network element, so that the SMF network element generates a QoS profile for a QoS flow and sends the QoS profile to an access network device through an access and mobility management function AMF network element, where the QoS profile includes the PDB list.

In some embodiments of the present disclosure, the PDB difference value obtaining module 510 may be further configured to receive a QoS parameter request sent by an AF network element of an application function, and a packet delay budget PDB difference value indicated by the QoS parameter request.

In some embodiments of the present disclosure, the PDB difference value obtaining module 510 may be further configured to receive a quality of service QoS parameter request sent by an application function AF network element; and acquiring a corresponding data packet delay budget PDB difference value from the UDR network element according to the QoS parameter request.

In some embodiments of the present disclosure, the PCC policy generation module 520 may be further configured to generate a PDB list comprising PDB values corresponding to each service data flow according to the PDB difference indicated by the QoS parameter request.

In some embodiments of the present disclosure, an access network device may include: one of a 5G access node 5G-AN accessed through a third generation partnership project 3GPP, AN interworking function network element N3IWF accessed through a non-3 GPP, and a trusted non-3 GPP gateway function network element TNGF accessed through a non-3 GPP; or a 5G access node 5G-AN accessed by the third generation partnership project 3GPP and one of the following: an interworking function network element N3IWF through non-3 GPP access and a non-3 GPP gateway function network element TNGF through trusted.

Fig. 6 shows a schematic structural diagram of an SMF network element in an embodiment of the present disclosure. As shown in fig. 6, the network element 600 includes:

A PCC rule receiving module 610, configured to receive a PCC rule sent by a PCF network element of a policy control function, where the PCC rule includes a PDB list generated by the PCF network element according to a packet delay budget PDB difference, where the PDB list includes a PDB value for each service data flow; a quality of service QoS profile generation module 620 configured to generate a QoS profile for a QoS flow, where the QoS profile comprises a PDB list; the QoS profile sending module 630 is configured to send the QoS profile to the access network device via the AMF network element.

In some embodiments of the present disclosure, an access network device may include: one of a 5G access node 5G-AN accessed through a third generation partnership project 3GPP, AN interworking function network element N3IWF accessed through a non-3 GPP, and a trusted non-3 GPP gateway function network element TNGF accessed through a non-3 GPP; or a 5G access node 5G-AN accessed by the third generation partnership project 3 GPP), and one of the following: an interworking function network element N3IWF through non-3 GPP access and a non-3 GPP gateway function network element TNGF through trusted.

Fig. 7 shows a schematic structural diagram of an access network device in an embodiment of the disclosure. As shown in fig. 7, the apparatus 700 includes:

The QoS profile receiving module 710 is configured to receive, through a multiple access protocol data unit PDU session path, a QoS profile sent by a session management function network element SMF, where the QoS profile includes a PDB list, and the QoS profile is generated by the SMF network element for different QoS flows, and the PDB list is generated by the PCF network element according to the PDB difference.

The specific manner in which the operations of the respective modules are performed in the PCF network element 500, the SMF network element 600, and the access network device 700 in the foregoing embodiments has been described in detail in the embodiments related to the method, and will not be described in detail herein.

Those skilled in the art will appreciate that the various aspects of the present disclosure may be implemented as a system, method, or program product. Accordingly, various aspects of the disclosure may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.

An electronic device 800 according to such an embodiment of the present disclosure is described below with reference to fig. 8. The electronic device 800 shown in fig. 8 is merely an example and should not be construed to limit the functionality and scope of use of embodiments of the present disclosure in any way.

As shown in fig. 8, the electronic device 800 is embodied in the form of a general purpose computing device. Components of electronic device 800 may include, but are not limited to: the at least one processing unit 810, the at least one memory unit 820, and a bus 830 connecting the various system components, including the memory unit 820 and the processing unit 810.

Wherein the storage unit stores program code that is executable by the processing unit 810 such that the processing unit 810 performs steps according to various exemplary embodiments of the present disclosure described in the above section of the present specification. For example, the processing unit 810 may perform step S210 shown in fig. 2 to obtain a packet delay budget PDB difference; step S220, generating a PDB list according to the PDB difference value, wherein the PDB list contains PDB values for each service data flow; step S230, the PCC rule including the PDB list is sent to the session management function SMF network element, so that the SMF network element generates a QoS profile for the QoS flow and sends the QoS profile to the access network device via the AMF network element, where the QoS profile includes the PDB list.

The storage unit 820 may include readable media in the form of volatile storage units, such as Random Access Memory (RAM) 8201 and/or cache memory 8202, and may further include Read Only Memory (ROM) 8203.

The storage unit 820 may also include a program/utility 824 having a set (at least one) of program modules 8205, such program modules 8205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.

Bus 830 may be one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

The electronic device 800 may also communicate with one or more external devices (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 800, and/or any device (e.g., router, modem, etc.) that enables the electronic device 800 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 850. Also, electronic device 800 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 860. As shown, network adapter 860 communicates with other modules of electronic device 800 over bus 830. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 800, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.

In an exemplary embodiment of the present disclosure, a computer-readable storage medium having stored thereon a program product capable of implementing the method described above in the present specification is also provided. In some possible implementations, various aspects of the disclosure may also be implemented in the form of a program product comprising program code for causing a terminal device to carry out the steps according to the various exemplary embodiments of the disclosure as described in the "exemplary methods" section of this specification, when the program product is run on the terminal device.

A program product for implementing the above-described method according to an embodiment of the present disclosure may employ a portable compact disc read-only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present disclosure is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, server, terminal, or device.

The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, server, terminal, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

The computer readable signal medium may include a data signal propagated in baseband or as part of a carrier wave with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, server, terminal, or device.

Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Program code for carrying out operations of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).

According to one aspect of the present disclosure, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the methods provided in the various alternative implementations of the above-described embodiments.

It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.

Furthermore, although the steps of the methods in the present disclosure are depicted in a particular order in the drawings, this does not require or imply that the steps must be performed in that particular order, or that all illustrated steps be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A data transmission method, performed by a PCF network element of a reception policy control function, the method comprising:

Obtaining a data packet delay budget PDB difference value;

Generating a PDB list according to the PDB difference value, wherein the PDB list contains a PDB value for each service data flow; and

And sending policy control and charging PCC rules comprising the PDB list to a Session Management Function (SMF) network element so that the SMF network element generates a QoS configuration file for a QoS flow and sends the QoS configuration file to access network equipment through an access and mobility management function (AMF) network element, wherein the QoS configuration file comprises the PDB list.

2. The method of claim 1, wherein the step of obtaining the packet delay budget PDB difference comprises:

and receiving a quality of service (QoS) parameter request sent by an Application Function (AF) network element and a data Packet Delay Budget (PDB) difference indicated by the QoS parameter request.

3. The method of claim 1, wherein the step of obtaining the packet delay budget PDB difference comprises:

Receiving a QoS parameter request sent by an AF network element of an application function;

And acquiring the corresponding data packet delay budget PDB difference value from the unified data warehouse function UDR network element according to the QoS parameter request.

4. A data transmission method according to claim 2 or 3, wherein the step of generating a PDB list from the PDB differences comprises:

And generating a PDB list composed of PDB values corresponding to each service data flow according to the PDB difference value indicated by the QoS parameter request.

5. The data transmission method according to claim 4, wherein the access network device comprises:

One of a 5G access node 5G-AN accessed through a third generation partnership project 3GPP, AN interworking function network element N3IWF accessed through a non-3 GPP, and a trusted non-3 GPP gateway function network element TNGF accessed through a non-3 GPP;

Or (b)

A 5G access node 5G-AN accessed by a third generation partnership project 3GPP and one of the following: an interworking function network element N3IWF through non-3 GPP access and a trusted non-3 GPP gateway function network element TNGF through non-3 GPP access.

6. A data transmission method, performed by a session management function, SMF, network element, the method comprising:

Receiving PCC rules sent by PCF network elements, wherein the PCC rules comprise PDB lists generated by the PCF network elements according to the PDB difference values of the data packet delay budgets, and the PDB lists contain PDB values for each service data flow;

generating a QoS configuration file for a QoS flow, wherein the QoS configuration file comprises the PDB list; and

And sending the QoS configuration file to access network equipment through an access and mobility management function (AMF) network element.

7. The data transmission method according to claim 6, wherein the access network device comprises:

Or (b)

A 5G access node 5G-AN accessed by a third generation partnership project 3GPP, and one of: an interworking function network element N3IWF through non-3 GPP access and a trusted non-3 GPP gateway function network element TNGF through non-3 GPP access.

8. A method of data transmission performed by an access network device, the method comprising:

and receiving a QoS configuration file sent by a Session Management Function (SMF) through a multi-access Protocol Data Unit (PDU) session path, wherein the QoS configuration file comprises a PDB list, the QoS configuration file is generated by the SMF network element for different QoS flows, and the PDB list is generated by the PCF network element according to the PDB difference value.

9. A receiving policy control function, PCF, network element, the network element comprising:

The PDB difference value acquisition module is used for acquiring a data packet delay budget PDB difference value;

The PCC policy control and charging rule generation module is used for generating a PDB list according to the PDB difference value, wherein the PDB list contains PDB values for each service data flow; and

And the PCC rule sending module is used for sending the PCC rule comprising the PDB list to a Session Management Function (SMF) network element so that the SMF network element generates a QoS configuration file for a QoS stream and sends the QoS configuration file to access network equipment through an access and mobility management function (AMF) network element, wherein the QoS configuration file comprises the PDB list.

10. A session management function, SMF, network element, the network element comprising:

a PCC rule receiving module, configured to receive a PCC rule sent by a PCF network element with a policy control function, where the PCC rule includes a PDB list generated by the PCF network element according to a packet delay budget PDB difference, where the PDB list includes a PDB value for each service data flow;

A QoS profile generating module, configured to generate a QoS profile for a QoS flow, where the QoS profile includes the PDB list; and

And the QoS configuration file sending module is used for sending the QoS configuration file to the access network equipment through the access and mobility management function AMF network element.

11. An access network device, the device comprising:

And the QoS configuration file receiving module is used for receiving a QoS configuration file sent by a session management function network element SMF through a multi-access protocol data unit PDU session path, wherein the QoS configuration file comprises a PDB list, the QoS configuration file is generated by the SMF network element for different QoS flows, and the PDB list is generated by the PCF network element according to the PDB difference value.

12. An electronic device, comprising:

A processor; and

A memory for storing executable instructions of the processor;

Wherein the processor is configured to perform the data transmission method of any one of claims 1 to 5 or claims 6 to 7 or claim 8 via execution of the executable instructions.

13. A computer readable storage medium having stored thereon a computer program, characterized in that the computer program, when executed by a processor, implements the data transmission method of any one of claims 1 to 5 or claims 6 to 7 or claim 8.