CN111586601B

CN111586601B - Network auxiliary information providing method and related equipment

Info

Publication number: CN111586601B
Application number: CN202010334902.4A
Authority: CN
Inventors: 张卓筠
Original assignee: Tencent Technology Shenzhen Co Ltd
Current assignee: Tencent Technology Shenzhen Co Ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2024-03-29
Anticipated expiration: 2040-04-24
Also published as: CN111586601A

Abstract

The disclosure provides a network auxiliary information providing method and related equipment. The method comprises the following steps: a request message is sent, wherein the request message carries a user terminal analysis and prediction request cell, the user terminal analysis and prediction request cell comprises a target analysis identifier, a target user terminal identifier, a target service flow identifier and a target protocol data unit session identifier, so that a subscription message is sent to a target network data analysis function according to the user terminal analysis and prediction request cell, and the subscription message comprises the user terminal analysis and prediction request cell; and receiving a first notification message, wherein the first notification message carries a user terminal analysis response cell, the user terminal analysis response cell comprises network auxiliary information and a target analysis identifier, and the network auxiliary information is generated by a target network data analysis function in response to the subscription message. The method provided by the embodiment of the disclosure provides the network auxiliary information for the user terminal, and can be applied to data transmission in cloud technology.

Description

Network auxiliary information providing method and related equipment

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method and apparatus for providing network auxiliary information, an electronic device, and a computer readable storage medium.

Background

In the 3GPP (3 rd Generation Partnership Project, third generation partnership project) standard protocols, it is proposed to use network assistance information to improve the QoE (Quality ofExperience, quality of experience, referring to subjective perception of quality and performance of devices, networks and systems, applications or services by users), but no existing standard is given how to provide this network assistance information to UEs (User Equipment).

Accordingly, there is a need for a new network assistance information providing method and apparatus, an electronic device, and a computer-readable storage medium.

It should be noted that the information disclosed in the foregoing background section is only for enhancing understanding of the background of the present disclosure.

Disclosure of Invention

The embodiment of the disclosure provides a network auxiliary information providing method and device, electronic equipment and a computer readable storage medium, which can realize that network auxiliary information is provided for a user terminal so as to improve the experience quality of a streaming media session of the user terminal.

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 embodiment of the disclosure provides a network auxiliary information providing method, which comprises the following steps: a request message is sent, wherein the request message carries a user terminal analysis and prediction request cell, the user terminal analysis and prediction request cell comprises a target analysis identifier, a target user terminal identifier, a target service flow identifier and a target protocol data unit session identifier, so that a subscription message is sent to a target network data analysis function according to the user terminal analysis and prediction request cell, and the subscription message comprises the user terminal analysis and prediction request cell; and receiving a first notification message, wherein the first notification message carries a user terminal analysis response cell, the user terminal analysis response cell comprises network auxiliary information and the target analysis identifier, and the network auxiliary information is generated by the target network data analysis function in response to the subscription message.

The embodiment of the disclosure provides a network auxiliary information providing method, which comprises the following steps: receiving a request message sent by a target user terminal, wherein the request message carries a user terminal analysis and prediction request cell, and the user terminal analysis and prediction request cell comprises a target analysis identifier, a target user terminal identifier, a target service flow identifier and a target protocol data unit session identifier; sending a subscription message to a target network data analysis function according to the user terminal analysis prediction request cell, wherein the subscription message comprises the user terminal analysis prediction request cell; receiving a second notification message returned by the target network data analysis function for the subscription message, wherein the second notification message comprises a user terminal analysis response cell, the user terminal analysis response cell comprises network auxiliary information and the target analysis identifier, and the network auxiliary information is generated by the target network data analysis function in response to the subscription message; and sending a first notification message to the target user terminal, wherein the first notification message carries the user terminal analysis response cell.

The embodiment of the disclosure provides a network auxiliary information providing method, which comprises the following steps: receiving a subscription message, wherein the subscription message comprises a user terminal analysis and prediction request cell, and the user terminal analysis and prediction request cell comprises a target analysis identifier, a target user terminal identifier, a target service flow identifier and a target protocol data unit session identifier; generating a second notification message, wherein the second notification message comprises a target user terminal identifier and a user terminal analysis response cell, the user terminal analysis response cell comprises network auxiliary information and the target analysis identifier, and the network auxiliary information is generated in response to the subscription message; and sending the second notification message.

An embodiment of the present disclosure provides a network assistance information providing apparatus, including: a request message sending unit, configured to send a request message, where the request message carries a user terminal analysis and prediction request cell, and the user terminal analysis and prediction request cell includes a target analysis identifier, a target user terminal identifier, a target service flow identifier, and a target protocol data unit session identifier, so that a subscription message is sent to a target network data analysis function according to the user terminal analysis and prediction request cell, where the subscription message includes the user terminal analysis and prediction request cell; the first notification message receiving unit is configured to receive a first notification message, where the first notification message carries a user terminal analysis response cell, where the user terminal analysis response cell includes network auxiliary information and the target analysis identifier, and the network auxiliary information is generated by the target network data analysis function in response to the subscription message.

An embodiment of the present disclosure provides a network assistance information providing apparatus, including: a request message receiving unit, configured to receive a request message sent by a target user terminal, where the request message carries a user terminal analysis and prediction request cell, and the user terminal analysis and prediction request cell includes a target analysis identifier, a target user terminal identifier, a target service flow identifier, and a target protocol data unit session identifier; a subscription message sending unit, configured to send a subscription message to a target network data analysis function according to the user terminal analysis prediction request cell, where the subscription message includes the user terminal analysis prediction request cell; a second notification message receiving unit, configured to receive a second notification message returned by the target network data analysis function for the subscription message, where the second notification message includes a user terminal analysis response cell, and the user terminal analysis response cell includes network auxiliary information and the target analysis identifier, where the network auxiliary information is generated by the target network data analysis function in response to the subscription message; and the first notification message sending unit is used for sending a first notification message to the target user terminal, wherein the first notification message carries the user terminal analysis response cell.

An embodiment of the present disclosure provides a network assistance information providing apparatus, including: a subscription message receiving unit, configured to receive a subscription message, where the subscription message includes a user terminal analysis and prediction request cell, and the user terminal analysis and prediction request cell includes a target analysis identifier, a target user terminal identifier, a target service flow identifier, and a target protocol data unit session identifier; a second notification message generating unit, configured to generate a second notification message, where the second notification message includes a target user terminal identifier and a user terminal analysis response cell, where the user terminal analysis response cell includes network auxiliary information and the target analysis identifier, and the network auxiliary information is generated in response to the subscription message; and the second notification message sending unit is used for sending the second notification message.

The embodiment of the present disclosure provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the network assistance information providing method as described in the above embodiment.

The embodiment of the disclosure provides an electronic device, comprising: one or more processors; and a storage configured to store one or more programs that, when executed by the one or more processors, cause the one or more processors to implement the network assistance information providing method as described in the above embodiments.

In some embodiments of the present disclosure, a target ue sends a request message carrying a ue analysis and prediction request cell to send a subscription message to a target ue, where the subscription message includes the ue analysis and prediction request cell, so that the target ue can determine, according to a target analysis identifier and a target traffic flow identifier included in the ue analysis and prediction request cell, which network elements acquire target data for analysis, and predict network assistance information required for acquiring the target ue, and return the network assistance information to the target ue through a ue analysis response cell, so that the target ue can improve quality of experience of a streaming media session based on the received network assistance information.

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. In the drawings:

Fig. 1 is a schematic diagram showing an exemplary system architecture to which a network assistance information providing method or a network assistance information providing apparatus of an embodiment of the present disclosure may be applied;

FIG. 2 illustrates a schematic diagram of a computer system suitable for use in implementing embodiments of the present disclosure;

fig. 3 schematically illustrates a flowchart of a network assistance information providing method according to an embodiment of the present disclosure;

FIG. 4 schematically illustrates an FLUS frame diagram in the relevant standard;

fig. 5 schematically illustrates a schematic diagram of a network assistance information providing method according to an embodiment of the present disclosure;

fig. 6 schematically illustrates a schematic diagram of a network assistance information providing method according to an embodiment of the present disclosure;

fig. 7 schematically illustrates a schematic diagram of a network assistance information providing method according to an embodiment of the present disclosure;

fig. 8 schematically illustrates a schematic diagram of a network assistance information providing method according to an embodiment of the present disclosure;

fig. 9 schematically illustrates a flowchart of a network assistance information providing method according to an embodiment of the present disclosure;

fig. 10 schematically illustrates a flowchart of a network assistance information providing method according to an embodiment of the present disclosure;

fig. 11 schematically illustrates a block diagram of a network assistance information providing apparatus according to an embodiment of the present disclosure;

Fig. 12 schematically illustrates a block diagram of a network assistance information providing apparatus according to an embodiment of the present disclosure;

fig. 13 schematically shows a block diagram of a network assistance information providing apparatus according to an embodiment of the present 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.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the disclosed aspects may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, the 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.

The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.

Fig. 1 shows a schematic diagram of an exemplary system architecture 100 to which a network assistance information providing method or a network assistance information providing apparatus of an embodiment of the present disclosure may be applied.

As shown in fig. 1, a system architecture 100 may include user terminals 101, 102, a network 103, and a server 104. The network 103 is used as a medium for providing communication links between the user terminals 101, 102 and the server 104. The network 103 may include various connection types, such as wired, wireless communication links, or fiber optic cables, among others.

A user may interact with the server 104 via the network 103 using the user terminals 101, 102 to receive or send messages or the like. The user terminals 101, 102 may be various electronic devices having a display screen and supporting web browsing with access to the network 103, including but not limited to smart phones, tablet computers, laptop computers, desktop computers, wearable devices, virtual reality devices, smart homes, etc.

The ue 101, 102 may, for example, send a request message, where the request message carries a ue analysis and prediction request cell, where the ue analysis and prediction request cell includes a target analysis identifier, a target ue identifier, a target traffic flow identifier, and a target protocol data unit session identifier, so as to send a subscription message to a target network data analysis function according to the ue analysis and prediction request cell, where the subscription message includes the ue analysis and prediction request cell. The ue 101, 102 may, for example, receive a first notification message, where the first notification message carries a ue analysis response cell, where the ue analysis response cell includes network assistance information and the target analysis identifier, where the network assistance information is generated by the target network data analysis function in response to the subscription message.

The server 104 may be a server providing various services, such as a background management server providing support for devices operated by users using the user terminals 101, 102. The background management server can analyze and process the received data such as the request and the like, and feed back the processing result to the user terminal.

It should be understood that the number of user terminals, networks and servers in fig. 1 is merely illustrative and that any number of user terminals, networks and servers may be provided as desired.

The server 104 may be an independent physical server, a server cluster or a distributed system formed by a plurality of physical servers, or a cloud server providing cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDNs (Content Delivery Network, content delivery networks), basic cloud computing services such as big data and artificial intelligent platforms, and the like. The terminal may be, but is not limited to, a smart phone, a tablet computer, a notebook computer, a desktop computer, a smart speaker, a smart watch, etc. The terminal and the server may be directly or indirectly connected through wired or wireless communication, which is not limited herein.

Fig. 2 shows a schematic diagram of a computer system suitable for use in implementing embodiments of the present disclosure.

It should be noted that the computer system 200 of the electronic device shown in fig. 2 is only an example, and should not impose any limitation on the functions and the application scope of the embodiments of the present disclosure.

As shown in fig. 2, the computer system 200 includes a central processing unit (CPU, central Processing Unit) 201, which can perform various appropriate actions and processes according to a program stored in a Read-Only Memory (ROM) 202 or a program loaded from a storage section 208 into a random access Memory (RAM, random Access Memory) 203. In the RAM 203, various programs and data required for the system operation are also stored. The CPU 201, ROM 202, and RAM 203 are connected to each other through a bus 204. An input/output (I/O) interface 205 is also connected to bus 204.

The following components are connected to the I/O interface 205: an input section 206 including a keyboard, a mouse, and the like; an output section 207 including a Cathode Ray Tube (CRT), a liquid crystal display (LCD, liquid Crystal Display), and the like, and a speaker, and the like; a storage section 208 including a hard disk or the like; and a communication section 209 including a network interface card such as a LAN (Local Area Network ) card, a modem, or the like. The communication section 209 performs communication processing via a network such as the internet. The drive 210 is also connected to the I/O interface 205 as needed. A removable medium 211 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is installed on the drive 210 as needed, so that a computer program read therefrom is installed into the storage section 208 as needed.

In particular, according to embodiments of the present disclosure, the processes described below with reference to flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable storage medium, the computer program comprising program code for performing the method shown in the flowcharts. In such an embodiment, the computer program may be downloaded and installed from a network via the communication portion 209, and/or installed from the removable medium 211. The computer program, when executed by a Central Processing Unit (CPU) 201, performs the various functions defined in the methods and/or apparatus of the present application.

It should be noted that the computer readable storage medium shown in the present disclosure may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM (Erasable Programmable Read Only Memory, erasable programmable read-only memory) or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this disclosure, a computer-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, apparatus, or device. In the present disclosure, however, the computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, with the computer-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 computer readable signal medium may also be any computer readable storage medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF (Radio Frequency), and the like, or any suitable combination of the foregoing.

The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of methods, apparatus, and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units involved in the embodiments of the present disclosure may be implemented by means of software, or may be implemented by means of hardware, and the described units may also be provided in a processor. Wherein the names of the units do not constitute a limitation of the units themselves in some cases.

As another aspect, the present application also provides a computer-readable storage medium that may be included in the electronic device described in the above embodiments; or may exist alone without being incorporated into the electronic device. The computer-readable storage medium carries one or more programs which, when executed by the electronic device, cause the electronic device to implement the methods described in the embodiments below. For example, the electronic device may implement the steps shown in fig. 3 or fig. 9 or fig. 10.

Cloud technology (Cloud technology) refers to a hosting technology for integrating hardware, software, network and other series resources in a wide area network or a local area network to realize calculation, storage, processing and sharing of data. The cloud technology is based on the general names of network technology, information technology, integration technology, management platform technology, application technology and the like applied by the cloud computing business mode, can form a resource pool, and is flexible and convenient as required. Cloud computing technology will become an important support. Background services of technical networking systems require a large amount of computing, storage resources, such as video websites, picture-like websites, and more portals. Along with the high development and application of the internet industry, each article possibly has an own identification mark in the future, the identification mark needs to be transmitted to a background system for logic processing, data with different levels can be processed separately, and various industry data needs strong system rear shield support and can be realized only through cloud computing.

Big data (Big data) refers to a data set which cannot be captured, managed and processed by a conventional software tool within a certain time range, and is a massive, high-growth-rate and diversified information asset which needs a new processing mode to have stronger decision-making ability, insight discovery ability and flow optimization ability. With the advent of the cloud age, big data has attracted more and more attention, and special techniques are required for big data to effectively process a large amount of data within a tolerant elapsed time. Technologies applicable to big data include massively parallel processing databases, data mining, distributed file systems, distributed databases, cloud computing platforms, the internet, and scalable storage systems.

First, some terms related to embodiments of the present disclosure will be described.

NEF (Network Exposure Function, open network capability): the control plane network element of the 5G core network realizes the capability opening of the 5G network towards the application server. Providing information inside the 5G network, such as terminal location information, terminal roaming status, etc., to the application server may be implemented.

AN (access network): refers to an implementation system consisting of a series of transport entities between a core network and a terminal interface in a mobile communication system that provides the required transport bearer capability for transporting telecommunications traffic. It may be referred to herein at least one access network comprising a 4G base station, or a 5G base station RAN (radio access network ) and/or a non-3GPP (non-3 rdGeneration Partnership Project, non-third generation partnership project) access network, connected to a 5G core network.

RAN: is part of a mobile communication system. It exists between a device (e.g., a mobile phone, a computer, or any remotely controlled machine) and the Core Network (CN) providing a wireless communication connection between the two.

NF (network function): the 3GPP adopts or 3GPP defined network processing functions in a network, which possess defined functional behavior and 3GPP defined interfaces.

AMF (Access and Mobility Management Function, access and mobility management functions): is mainly responsible for access authentication, authorization and mobility management, and may provide transmission and the like for SM messages between a UE (User Equipment) and an SMF (Session Management Function ).

SMF: is mainly responsible for session management and IP (Internet Protocol ) address assignment. All or part of the SMF functions may be supported in a single instance of SMF: session management, e.g., session establishment, modification and release, including maintenance of channels between the UPF (User Plane Function ) and AN node; UE IP address assignment and management (including optional authorization); configuring the flow control of the UPF, routing the traffic to the correct destination, etc.

UPF: the data packets of the user plane are transmitted by establishing a PDU (Protocol Data Unit ) Session (Session), which is responsible for routing, forwarding, policy enforcement of packet data, etc. Some or all of the UPF functionality may be supported in a single instance of UPF: packet routing and forwarding (e.g., supporting an uplink classifier, ul cl, to offload traffic flows to a local data network, supporting a Branch Point (BP) to support multi-homed PDU sessions), etc.

NRF (NF Repository Function, NF storage function): this functional network element may support a service discovery function. And receiving a network element discovery request from a network element functional entity and feeding back the network element entity information needing to be discovered. At the same time, this network element is also responsible for maintaining information of available network function entities and services they each support. This discovery procedure is triggered by the demand network element function (NF) by providing the type or specific service for which the NRF expects to discover the NF, the NRF providing the IP address or FQDN (Fully Qualified Domain Name, fully qualified domain name/fully qualified domain name) or the corresponding identity of the corresponding NF instance or NF service.

AF (Application Function ): this functionality interacts with the 5G core network with the aim of providing services, e.g. supporting the following functions: (1) application impact on traffic routing; (2) access to network open capability; and (3) interacting with the policy framework to conduct policy management.

NWDAF (Network Data Analytics Function, network data analysis function): and a predictive analysis function of network data managed by the representative operator. NWDAF provides on-demand network data analysis for NF.

FLUS (Framework for Live Uplink Streaming, real-time upstream multimedia framework): architecture for describing related entities providing an upstream multimedia service.

DNN, date Network Name, data network name.

S-nsai, single Network Slice Selection Assistance Information, single network slice selection assistance information.

PCF, policy Control Function, policy control function.

Streaming media (media streaming): may be of the following type: video, audio, text or metadata, etc.

Fig. 3 schematically illustrates a flowchart of a network assistance information providing method according to an embodiment of the present disclosure. The method provided by the embodiments of the present disclosure may be performed by a target user terminal (target UE), which may be any user terminal, such as the user terminals 101 and 102 in fig. 1 described above, but the present disclosure is not limited thereto. As shown in fig. 3, the method provided by the embodiment of the present disclosure may include the following steps.

In step S310, a request message is sent, where the request message carries a user terminal analysis and prediction request cell, and the user terminal analysis and prediction request cell includes a target analysis identifier, a target user terminal identifier, a target service flow identifier, and a target protocol data unit session identifier, so that a subscription message is sent to a target network data analysis function according to the user terminal analysis and prediction request cell, where the subscription message includes the user terminal analysis and prediction request cell.

In an exemplary embodiment, the target traffic flow identifier may include a target protocol data unit session identifier, and/or a target quality of service flow identifier (hereinafter simply referred to as QFI, i.e., qoS (Quality of Service, quality of service) flow Identity (ID)).

In an exemplary embodiment, the target traffic flow identification may further include a target application identification.

In an exemplary embodiment, the target traffic identification may also include internet protocol filter information, a fully qualified domain name.

In an exemplary embodiment, the user terminal analysis prediction request cell may further include region of interest information therein.

In an exemplary embodiment, the request message may further include a target network data analysis function identifier.

In an exemplary embodiment, sending the request message may include: and sending the request message to an access mobility management function (AMF), wherein the request message comprises an N1 session management cell (N1 SM container) and the user terminal analysis and prediction request cell, so that the access mobility management function sends the subscription message to the target network data analysis function according to the user terminal analysis and prediction request cell. Reference is made in particular to the description of the embodiment of figures 5 and 6 below.

In an exemplary embodiment, sending the request message may include: the request message is sent to a Session Management Function (SMF), the request message includes an N1 session management cell (N1 SM container), the N1 session management cell (N1 SM container) includes the user terminal analysis and prediction request cell, so that the session management function analyzes the N1 session management cell (N1 SM container) to obtain the user terminal analysis and prediction request cell, and sends the subscription message to the target network data analysis function according to the user terminal analysis and prediction request cell. Reference is made in particular to the description of the embodiment of figures 7 and 8 below.

In an exemplary embodiment, the method may further include: and receiving a response message returned for the request message, wherein the response message comprises the acceptance or rejection of the subscription message by the target network data analysis function.

In step S320, a first notification message is received, where the first notification message carries a user terminal analysis response cell, where the user terminal analysis response cell includes network auxiliary information and the target analysis identifier, and the network auxiliary information is generated by the target network data analysis function in response to the subscription message.

In an exemplary embodiment, the user terminal analysis response cell may further include one or more of time stamp information, validity time, validity place, and prediction confidence of the network assistance information.

In an exemplary embodiment, receiving the first notification message may include: receiving the first notification message in a protocol data unit session establishment or modification procedure; or receiving the first notification message in a configuration updating flow; or receiving the first notification message in a subsequent protocol data unit session modification procedure.

For example, the user terminal may be included in a PDU session establishment or PDU session modification procedure, analyze the prediction request cell, and receive the first notification message in the procedure. However, in general, after the target NWDAF receives the subscription message, there is no existing network auxiliary information that satisfies the analysis and prediction request of the UE, so it is required to trigger to acquire target data from the target network element and to perform analysis and prediction on the target data before obtaining the network auxiliary information, so it is not possible to return the network auxiliary information to the target UE in the PDU session establishment or PDU session modification procedure at the same time, and therefore, after the PDU session establishment or PDU session modification procedure is completed, the configuration update procedure may be triggered again, and the first notification message may be issued through the configuration update procedure. In the following embodiments of fig. 5 and 7, the first notification message is issued in the configuration update procedure as an example.

In an exemplary embodiment, the network assistance information may include a data transmission rate prediction value of the target traffic flow corresponding to the target traffic flow identification.

In an exemplary embodiment, the network auxiliary information may include a packet delay prediction value of the target traffic flow corresponding to the target traffic flow identifier.

In an exemplary embodiment, the user terminal analysis prediction request cell may further include a target analysis sub-identifier, wherein the network assistance information is determined according to the target analysis identifier and the target analysis sub-identifier.

In an exemplary embodiment, if the target analysis identifier is set to be a user terminal analysis and the target analysis sub-identifier is set to be a service experience, the network auxiliary information may include at least one of a data transmission rate predicted value and a data packet delay predicted value of a target traffic flow corresponding to the target traffic flow identifier.

In an exemplary embodiment, if the target analysis identifier is set to be a service experience or a user terminal analysis, and the target analysis sub-identifier is set to be a bit rate recommendation, the network assistance information may include a data transmission rate prediction value of a target traffic flow corresponding to the target traffic flow identifier.

In an exemplary embodiment, if the target analysis identifier is set to service experience or user terminal analysis, and the target analysis sub-identifier is set to delay, the network auxiliary information may include a packet delay prediction value of a target traffic flow corresponding to the target traffic flow identifier.

In an exemplary embodiment, if the target analysis identifier is set to be a service experience or a user terminal analysis, and the target analysis sub-identifier is set to be a bit rate recommendation and a delay, the network auxiliary information may include a data transmission rate predicted value and a data packet delay predicted value of a target traffic flow corresponding to the target traffic flow identifier.

According to the network auxiliary information providing method provided by the embodiment of the disclosure, the target user terminal sends the request message carrying the user terminal analysis prediction request cell to send the subscription message to the target network data analysis function, and the user terminal analysis prediction request cell is included in the subscription message, so that the target network data analysis function can determine which network elements acquire target data for analysis according to the target analysis identifier and the target service flow identifier contained in the user terminal analysis prediction request cell, and predicts network auxiliary information required by the target user terminal, and returns the network auxiliary information to the target user terminal through the user terminal analysis response cell, so that the target user terminal can improve the experience quality of the streaming media session based on the received network auxiliary information.

It should be noted that, the method provided by the embodiment of the present disclosure is not limited to being applicable to uplink streaming media, but may also be applicable to downlink streaming media. In the following embodiments, the uplink streaming media is exemplified.

Fig. 4 schematically shows an FLUS framework diagram in the relevant standard.

The upstream service architecture shown in fig. 4 includes an FLUS source (FLUS source) located at the UE (hereinafter referred to as target UE) side, and an FLUS sink (FLUS receiver) located at another UE or network (network). The FLUS source obtains media content from one or more Capture devices (Capture devices), which may be part of the UE or may be devices connected to the UE. The FLUS sink may be located in another UE or in the network.

The upstream network assistance function, uplink Network Assistance (UNA), is defined in the FLUS architecture. The upstream network assistance function, which allows the FLUS source to improve the QoE (Quality of Experience ) of upstream streaming media sessions, is provided by Network Assistance Server (NAssS, network assistance server). The NAssS provides network assistance information through a different transmission path than the upstream media. The communication of the UNA does not depend on the communication paths of the F-U (Media Source and Sink ) and F-C (Control Source and Sink, control source and sink), and therefore the communication of the UNA occurs on a completely different path than the FLUS streaming media. FLUS sink also does not need to be aware of UNA functionality. The UNA requests network assistance information based on the FLUS source to provide a response message to the FLUS source. The UNA function may provide any one or both of the following information to the flis source:

NAssS indicates the most appropriate upstream streaming media transmission rate for FLUS source in the latter time period.

NAssS indicates flis source temporary delivery boost function (transmission boost function) to address the risk that the content may exceed the output buffer when upstream.

When the uplink network assistance session is activated, a client (in the embodiment of the present disclosure, a functional component in the target UE is a client dedicated to streaming media processing) may issue an uplink network assistance information request before sending the next piece of uplink streaming media content to the FLUS sink. The uplink network assistance request comprises a single logical signaling interaction. This interaction activates either the first function described above or both functions. The second function is only used when the FLUS source grants access to delivery boost function. If the client does not need a release boost, the NassS will delete the second function in the message responding to the FLUS source.

In the definition of the 3GPP standard protocol TS26.501, NAssS are implemented by AFs in the network, providing an uplink transmission rate or delivery boost function to the flis source.

However, in the relevant standard, the interaction flow between the FLUS source and the AF is not defined, i.e. how the AF sends the uplink network assistance information to the FLUS source.

The NWDAF functions are defined in the 3GPP standard protocol TS23.288, and the NWDAF may analyze and obtain service experience data/service data information of a past period of time through existing functions, and may also analyze and predict service experience data/service data information of a future period of time.

In the embodiment of the present disclosure, the service experience data/service data information that may be obtained by the NWDAF includes at least one of the following: a predicted value of a data transmission rate of a certain QoS traffic flow (referred to as a target traffic flow), a predicted value of a packet delay of an uplink or downlink of a certain QoS flow, and the like.

In the embodiment of the disclosure, the predicted value of the data transmission rate of a certain QoS flow predicted by NWDAF refers to a predicted value of the data transmission rate of the QoS flow in a certain time period in the future, and may be used for assisting the flis source to set the uplink streaming media transmission rate; the predicted value of the packet delay of a certain QoS flow predicted by NWDAF refers to a predicted value of the packet delay of the QoS flow in a certain time period in the future, and may be used to adjust related parameters of the streaming media, for example, to assist the FLUS source in setting a suitable buffer value (for indicating the size of an output buffer of the streaming media to be sent), or to adjust a coding algorithm to match the state of the network, etc. Accordingly, embodiments of the present disclosure propose to send NWDAF predicted traffic data information (including uplink data transmission rate predictors and/or packet delay predictors) to the flis source.

Specifically, the flis source may directly set the received data transmission rate prediction value of the QoS flow to the streaming media transmission rate of the streaming media to be sent in the later period, or may use the received data transmission rate prediction value of the QoS flow to assist in setting the streaming media transmission rate of the streaming media to be sent in the later period, which is not limited in the disclosure.

It may be understood that, if the method provided in the embodiment of the present disclosure is applicable to downstream streaming media, the target UE directly sets the received data transmission rate prediction value of the QoS flow to the streaming media transmission rate of the streaming media to be received in the later period, or may use the received data transmission rate prediction value of the QoS flow to assist in setting the streaming media transmission rate of the streaming media to be received in the later period, which is not limited in the present disclosure.

In the embodiment of the disclosure, when the predicted value of the delay of the data packet of the QoS flow received by the flis source is larger, it is indicated that the network is in a poor state at this time, and relevant parameters of the streaming media can be adjusted, for example, a larger buffer value is correspondingly set, so as to buffer the streaming media to be sent, so as to prevent the data packet loss caused by the poor state of the network; when the delay predicted value of the received data packet of the QoS flow is smaller, which indicates that the network state is better at the moment, a smaller buffer value can be correspondingly set for caching the streaming media to be sent.

It can be understood that if the method provided by the embodiment of the present disclosure is suitable for downstream streaming media, when the delay predicted value of the data packet of the QoS stream received by the UE is larger, it indicates that the network is in a poor state at this time, and relevant parameters of the streaming media can be adjusted, for example, a buffer value with a larger size is correspondingly set, so as to buffer the streaming media to be received, so as to prevent data packet loss caused by poor network state; when the delay predicted value of the received data packet of the QoS stream is smaller, which indicates that the network state is better at the moment, a smaller buffer value can be correspondingly set for caching the streaming media to be received.

In the embodiment of the present disclosure, a target UE may be preconfigured to multiple optional coding algorithms of a streaming media to be transmitted (the type and number of specific coding algorithms may be set according to an actual application scenario, which is not limited in the present disclosure), or different parameter values may be configured for the coding algorithms, when a packet delay predicted value of a received QoS stream is larger, which indicates that a network is in a poor state at this time, relevant settings or parameters of the streaming media may be adjusted, for example, a corresponding coding algorithm with smaller coding complexity and lower coding performance may be selected as a target coding algorithm of the streaming media to be transmitted, so as to match a network state at this time; when the delay predicted value of the received data packet of the QoS stream is smaller, the network state is better at the moment, and the relevant setting or parameters of the stream media can be adjusted, for example, the corresponding coding algorithm with higher coding complexity and higher coding performance is selected as the target coding algorithm of the stream media to be transmitted so as to match the network state at the moment.

It can be understood that, if the method provided by the embodiment of the present disclosure is applicable to downstream streaming media, multiple optional decoding algorithms (the type and number of specific decoding algorithms may be set according to an actual application scenario, etc.) may be provided in advance to the streaming media to be received in the target UE (the disclosure is not limited to this), and when the delay predicted value of the data packet of the received QoS stream is larger, it is indicated that the network is in a poor state at this time, and the relevant settings or parameters of the streaming media may be adjusted, for example, the corresponding decoding algorithm with smaller decoding complexity and lower decoding performance may be selected as the target decoding algorithm of the streaming media to be received, so as to match the network state at this time; when the delay predicted value of the received data packet of the QoS stream is smaller, the network state is better, and the relevant parameters of the streaming media can be adjusted, for example, a decoding algorithm with higher decoding complexity and higher decoding performance is selected correspondingly as a target decoding algorithm of the streaming media to be received so as to match the network state at the moment.

UE Analytic container (user terminal analysis container, corresponding to the user terminal analysis prediction request cell) is defined in the embodiments of the present disclosure, where UE Analytic container corresponding to the user terminal analysis prediction request cell includes a specific parameter of data analysis prediction requested by the target UE, and UE Analytic container corresponding to the user terminal analysis prediction request cell may be sent to the NWDAF when the target UE initiates PDU session establishment or when the target UE initiates PDU session modification. Neither the 5G AN nor the AMF/SMF parses UE Analytic container corresponding to the user terminal analysis and prediction request cell, but only transparently transmits UE Analytic container corresponding to the user terminal analysis and prediction request cell. When NWDAF generates corresponding analysis prediction data (such as the above network auxiliary information) and needs to be sent to the target UE, a corresponding notification message is sent to AMF/SMF, where the corresponding notification message includes UE Analytic container (corresponding to a user terminal analysis response cell), UE Analytic container corresponding to the user terminal analysis response cell includes the network auxiliary information generated by NWDAF analysis, and AMF/SMF triggers a configuration update procedure and sends UE Analytic container corresponding to the user terminal analysis response cell to the target UE.

It should be noted that, in the embodiment of the present disclosure, the UE analysis and prediction request information element refers to a packed information body, which is a packed aggregate of data, and the parameters of what kind of data analysis and prediction the UE needs to request are packed in a container through the container, and the parameters are not analyzed by AN intermediate network element (e.g. AN and AMF/SMF), and are directly transmitted to the network element (e.g. NWDAF) that analyzes the parameters, so that the name in the final writing standard is not limited to UE Analytic container, and may be determined according to negotiation. The UE analysis response cell refers to a packed message body, which is a packed aggregate of data, and the result of data analysis prediction of the UE to receive the response UE analysis prediction request cell is packed in a container through the container, and the intermediate network element (e.g., AN and AMF/SMF) does not parse the result and directly transmits the result to the target UE parsing the result, so that the name of the final writing standard is not limited to UE Analytic container, and can be determined according to negotiation.

In the embodiment of fig. 5, the AMF interacts with the target NWDAF, and a specific service flow chart is shown in fig. 5, and may include the following steps.

Step 1, a target UE sends a PDU session establishment or modification request to an AMF.

Specifically, the target UE sends a request message to the AMF, where the request message carries a PDU session ID (target PDU session identifier), DNN, S-nsai, N1 SM container (N1 session management cell) and UE Analytic container (user terminal analysis prediction request cell).

The PDU session establishment request or the PDU session modification request is included in the N1 SM container (PDU Session Establishment Request) or the N1 SM container (PDU Session modification Request), i.e., the N1 SM container.

In the embodiment of fig. 5, UE Analytic container [ analytical ID (target analysis identity), analytical sub-ID (target analysis sub-identity, optional parameters), target of Analytics Reporting (analysis report destination address) =ue ID (target UE identity), analytics Filter information (analysis filter information) = (PDU session ID, QFI (target traffic flow identity, for specifying which traffic flow is specifically targeted)), optional parameters include: application ID (i.e. the ID of a target Application identity, e.g. the ID of a video APP (Application) on a target UE, but not all APPs have to have an ID), IP filter information (IP filter information, which may refer to FLUS sink server address information, i.e. destination address information of the streaming media to be sent, so that it may be known for which target traffic flow), FQDN, or both IP filter information and FQDN), area of Interest (i.e. network assistance information for which analysis prediction is requested by the target UE), analytics Reporting Information (analysis report information). With this UE Analytic container, the target UE wants to be able to initiate its required data analysis prediction request to the target NWDAF.

In embodiments of the present disclosure, analytics Reporting Information may include analysis report information parameters, such as event reporting mode (Event Reporting mode), reporting modes may be set, such as maximum analysis report times (a maximum number of reports), periodicity of analysis reports (periodic reporting along with periodicity), and so forth.

Optionally, the target NWDAF ID (identifier) may also be included in the request message. The target NWDAF ID may be included both inside and outside UE Analytic container, which is not limited by the present disclosure.

Step 2, if the request message carries the target NWDAF ID, the AMF selects the target NWDAF corresponding to the target NWDAF ID. If the request message does not carry the target NWDAF ID, the AMF selects the NWDAF supporting ueanalytical as the target NWDAF according to the configuration or the service discovery procedure of the NRF.

In the embodiment of the present disclosure, in the process of selecting the target NWDAF, the following factors may be considered with reference to the existing standard-defined method:

-S-NSSAI。

analytics ID(s) (target analysis ID).

NWDAF Serving Area information (NWDAF service area information).

The AMF will initiate a subscription message to the target NWDAF to request a data analysis and prediction service of the target NWDAF, where the subscription message includes the target UE ID, notification Target Address (+ Notification Correlation ID) (notify destination address (+notify related ID), i.e. notify NWDAF of which service the AMF returns to when responding to the second notification message of the subscription message), UE Analytic container [ analytical ID, analytical sub-ID, target of Analytics Reporting =ue ID, analytics Filter information = (PDU session ID, QFI, optional parameters including Application ID, IP filter information, area of Interest), analytics Reporting Information ].

After receiving the subscription message, the target NWDAF returns a response message, where the response message includes whether the target NWDAF receives or rejects the subscription message, and if the target NWDAF rejects the subscription message, the response message may further include a reject reason value.

For example, whether the target NWDAF is already fully loaded, whether the target NWDAF is capable of performing the predictive analysis requested by the target UE, or whether the target UE has permission to initiate the data analysis predictive request, and so on.

Step 3, AMF interacts with SMF according to the existing standard flow to complete the establishment or modification of PDU session.

And 4, the AMF returns a PDU session establishment or modification response message to the target UE, wherein the PDU session establishment or modification response message comprises a response to the data analysis and prediction request of the target UE, namely whether the target NWDAF already accepts the data analysis and prediction request initiated by the target UE.

And 5, determining a target network element by the target NWDAF according to UE Analytic container in the subscription message, for example, determining PCF and/or UPF according to the analytical ID and the analytical sub-ID in UE Analytic container as the target network element (the 5G system architecture allows the NWDAF to collect data from any NF), acquiring target data from the target network element such as PCF and UPF, and then performing data analysis on the acquired target data to obtain a prediction result meeting the requirement as network auxiliary information.

Step 6, the target NWDAF transmits a second notification message (data analysis prediction service notification of the target NWDAF) to the AMF, wherein the second notification message includes the target UE ID, notification Target Address (+ Notification Correlation ID), UE Analytic container [ analysis ID, analysis sub-ID, analytics information (analysis information), time stamp information of the prediction result, validity time of the prediction result, validity place of the prediction result, prediction confidence ].

In the embodiment of the disclosure, the network auxiliary information may include analytics information in UE Analytic container, timestamp information of the predicted result, effective time of the predicted result, effective location of the predicted result, and prediction confidence. Analytics information may be specifically determined according to an analysis ID and an analysis sub-ID, and may include, for example, a data transmission rate prediction value of a target traffic flow corresponding to the target traffic flow identifier and/or a packet delay prediction value of the target traffic flow.

And 7, after the AMF receives the second notification message, triggering a configuration updating flow of the target UE, and sending a first notification message to the target UE, wherein the first notification message comprises UE Analytic container [ analytical ID, analytical sub-ID, analytics information, timestamp information of a predicted result, effective time of the predicted result, effective place of the predicted result and predicted confidence ]. The first notification message optionally contains a target NWDAF ID, which may be internal and external to UE Analytic container.

In addition, when the target UE generates a registration area update and changes the AMF, the new AMF updates the connection with the target NWDAF at the same time when the registration area update procedure is completed, that is, the target NWDAF stores the new AMF ID information.

In the embodiment of the disclosure, the following three optional analytical ID setting modes are provided:

parameter optional setting mode one:

if the analytical id=ue analysis (user terminal analysis) in the above step 1 and the analytical sub-id= Service experience (service experience) are added, the Analytics information in the above step 4 may specifically include at least one of the data transmission rate prediction value and the packet delay prediction value of the target QoS flow.

And a parameter selectable setting mode II:

if the analytical id= Service experience in the step 1 is increased by the analytical sub-id= bitrate recommendation (bit rate recommendation), or/and the analytical sub-id=latency (delay), analytics information in the step 4 contains the content requested in the analytical sub-ID, that is, the predicted value of the data transmission rate of the target QoS flow, or/and the predicted value of the packet delay.

And a parameter selectable setting mode III:

if the analytical id=ue analytical in step 1 is increased by the addition of the analytical sub-id= bitrate recommendation, or/and the analytical sub-id=latency, analytics information in step 4 contains the content requested in the analytical sub-ID, i.e. the predicted data transmission rate of the target QoS flow, or/and the predicted data packet delay.

It will be appreciated that the meaning represented by the particular parameter values of the analytical ID and the analytical sub-ID may be determined in accordance with negotiations and is not limited to the above exemplified cases and named names. For example, it may be set that UE Analytic container only needs to include an analysis ID, and once the target NWDAF receives UE Analytic container of AMF transmission, the target NWDAF may know that the target UE requests to perform data analysis prediction of the target UE, and at this time, the target NWDAF may return the predicted data transmission rate prediction value of the target QoS flow corresponding to the target analysis ID and/or the packet delay prediction value to the target UE through the AMF. For another example, if UE Analytic container only includes an analysis ID, the target NWDAF may return the predicted data transmission rate prediction value and the packet delay prediction value of the predicted target QoS flow corresponding to the target analysis ID to the target UE through the AMF; if UEAnalytic container includes both an analysis ID and an analysis sub-ID, the predicted data transmission rate predicted value and/or the predicted data packet delay predicted value of the target QoS flow are returned to the target UE according to the values of the analysis ID and the analysis sub-ID.

Steps 1-6 in the embodiment of fig. 6 reference may be made to steps 1-6 of the embodiment of fig. 5 described above, the embodiment of fig. 6 differing from the embodiment of fig. 5 described above in that: in step 7 of the embodiment of fig. 6, after the AMF receives the second notification message sent by the target NWDAF, the AMF forwards the second notification message to the SMF, and the SMF triggers a PDU session modification procedure of the target UE, in which the SMF sends the first notification message to the target UE.

In the embodiment of fig. 7, the SMF interacts with the target NWDAF, and a specific service flow chart is shown in fig. 7, and may include the following steps.

Step 1, the target UE sends PDU session establishment or modification request to SMF.

Specifically, the target UE sends a request message to the SMF, where the request message carries a PDU session ID (target PDU session identifier), DNN, S-nsai, N1 SM container (N1 session management cell).

In the embodiment of fig. 7, PDU Session Establishment Request or PDU Session modification Request may further include UE Analytic container (user terminal analysis prediction request cell)

Wherein UE Analytic container [ analytical ID, analytical sub-ID (optional parameters), target of Analytics Reporting =ue ID, analytics Filter information = (PDU session ID, QFI), optional parameters include: application ID, IP filter information, area of Interest, analytics Reporting Information ]. With this UE Analytic container, the target UE wants to be able to initiate its required data analysis prediction request to the target NWDAF.

Optionally, the target NWDAF ID (identifier) may also be included in the request message. The target NWDAF ID may be included inside or outside UE Analytic container, which is not limited by the present disclosure.

Step 2, if the request message carries the target NWDAF ID, the SMF selects the target NWDAF corresponding to the target NWDAF ID. If the request message does not carry the target NWDAF ID, the SMF selects NWDAF supporting UE analytical as the target NWDAF according to the configuration or the service discovery procedure of the NRF.

After receiving the request message, the SMF parses the request message to obtain UE Analytic container. Thereafter, the SMF initiates a subscription message to the target NWDAF to request the data analysis and prediction service of the target NWDAF, where the subscription message includes the target UE ID, notification Target Address (+ Notification Correlation ID) (notify destination address (+notify related ID), that is, notify NWDAF of which service to return to the SMF when responding to the second notification message of the subscription message), UE Analytic container [ analytical ID, analytical sub-ID, target of Analytics Reporting =ue ID, analytics Filter information = (PDU session ID, QFI, optional parameters including Application ID, IP filter information, area of Interest), analytics Reporting Information ].

Step 3, the SMF completes the establishment or modification of the PDU session according to the existing standard procedure.

And 4, returning a PDU session establishment or modification response message to the target UE by the SMF, wherein the PDU session establishment or modification response message comprises a response to the data analysis and prediction request of the target UE, namely whether the target NWDAF already accepts the data analysis and prediction request initiated by the target UE.

Step 6, the target NWDAF sends a second notification message to the SMF, where the second notification message includes the target UE ID, notification Target Address (+ Notification Correlation ID), UE Analytic container [ analysis ID, analysis sub-ID, analytics information, timestamp information of the prediction result, validity time of the prediction result, validity place of the prediction result, prediction confidence ].

Step 7, after the SMF receives the second notification message, the SMF sends the second notification message to the AMF.

Step 8, after the AMF receives the second notification message, the AMF triggers a configuration update procedure of the target UE, and sends a first notification message to the target UE, where the first notification message includes UE Analytic container [ analysis ID, analysis sub-ID, analytics information, timestamp information of the prediction result, validity time of the prediction result, validity location of the prediction result, and prediction confidence ]. The first notification message optionally includes a target NWDAF ID, which may be internal or external to UE Analytic container.

Steps 1-6 in the fig. 8 embodiment reference may be made to steps 1-6 in the fig. 7 embodiment described above. The difference from the embodiment of fig. 7 is that step 7 in the embodiment of fig. 8 is: when the SMF receives the second notification message, the SMF triggers a PDU session modification procedure of the target UE, and in the PDU session modification procedure, the SMF sends the first notification message to the target UE.

In the embodiments of FIGS. 6, 7 and 8, the analytical ID and the analytical sub-ID are set as described above with reference to the embodiment of FIG. 5.

It will be appreciated that the meaning represented by the particular parameter values of the analytical ID and the analytical sub-ID may be determined in accordance with negotiations and is not limited to the above exemplified cases and named names. For example, it may be set that UE Analytic container only needs to include an analysis ID, and once the target NWDAF receives UE Analytic container of SMF transmission, the target NWDAF may know that the target UE requests to perform data analysis prediction of the target UE, and at this time, the target NWDAF may return the predicted data transmission rate prediction value of the target QoS flow corresponding to the target analysis ID and/or the packet delay prediction value to the target UE through the SMF. For another example, if UE Analytic container only includes an analysis ID, the target NWDAF may return the predicted data transmission rate prediction value and the packet delay prediction value of the predicted target QoS flow corresponding to the target analysis ID to the target UE through the SMF; and if UE Analytic container comprises both the analytical ID and the analytical sub-ID, returning the predicted data transmission rate predicted value and/or the predicted data packet delay predicted value of the predicted target QoS flow to the target UE according to the value of the analytical sub-ID.

The embodiment of the disclosure provides a network auxiliary information providing method capable of sending NWDAF predicted service information data (i.e., network auxiliary information) to an flis source. I.e. a method is provided for providing predicted traffic information data to the flis source by the NWDAF and extends the scope of the side information. That is, compared with the technology in the related standard, the NWDAF may return the data transmission rate predicted value (bitrate recommendation, bit rate recommended) of the target traffic flow corresponding to the target traffic flow identifier and the packet delay predicted value (latency) of the target traffic flow by using the AF as the NAssS method. After receiving the returned network auxiliary information, the target UE can assist in the optimization processing such as the setting of streaming media transmission rate, the setting of the size of an output/input buffer zone, the selection of a coding and decoding algorithm, parameter setting and the like.

Fig. 9 schematically illustrates a flowchart of a network assistance information providing method according to an embodiment of the present disclosure. The method provided by the embodiments of the present disclosure may be performed by an AMF or an SMF, but the present disclosure is not limited thereto. As shown in fig. 9, the method provided by the embodiment of the present disclosure may include the following steps.

In step S910, a request message sent by a target user terminal is received, where the request message carries a user terminal analysis and prediction request cell, and the user terminal analysis and prediction request cell includes a target analysis identifier, a target user terminal identifier, a target service flow identifier, and a target protocol data unit session identifier.

In step S920, a subscription message is sent to the target network data analysis function according to the ue analysis and prediction request cell, where the subscription message includes the ue analysis and prediction request cell.

In an exemplary embodiment, the method may further include: if the request message does not include the target network data analysis function identification, determining the target network data analysis function according to configuration; or selecting the target network data analysis function supporting user terminal analysis according to the service discovery flow of the network storage function.

In step S930, a second notification message returned by the target network data analysis function for the subscription message is received, where the second notification message includes a user terminal analysis response cell, and the user terminal analysis response cell includes network auxiliary information and the target analysis identifier, where the network auxiliary information is generated by the target network data analysis function in response to the subscription message.

In step S940, a first notification message is sent to the target ue, where the first notification message carries the ue analysis response cell.

Fig. 10 schematically illustrates a flowchart of a network assistance information providing method according to an embodiment of the present disclosure. The method provided by the embodiments of the present disclosure may be performed by the target NWDAF, but the present disclosure is not limited thereto. As shown in fig. 10, the method provided by the embodiment of the present disclosure may include the following steps.

In step S1010, a subscription message is received, where the subscription message includes a user terminal analysis and prediction request cell, and the user terminal analysis and prediction request cell includes a target analysis identifier, a target user terminal identifier, a target service flow identifier, and a target protocol data unit session identifier.

In step S1020, a second notification message is generated, where the second notification message includes a target ue identifier and a ue analysis response cell, and the ue analysis response cell includes network assistance information and the target analysis identifier, where the network assistance information is generated in response to the subscription message.

In an exemplary embodiment, the generating the second notification message may include: according to the user terminal analysis prediction request cell, determining a target network element; acquiring target data from the target network element; and analyzing the target data to obtain the network auxiliary information.

In step S1030, the second notification message is transmitted.

The specific implementation of the embodiment of fig. 9 and 10 may refer to the content of the other embodiments described above.

Fig. 11 schematically illustrates a block diagram of a network assistance information providing apparatus according to an embodiment of the present disclosure. The network assistance information providing apparatus 1100 provided by the embodiments of the present disclosure may be provided within the target UE, but the present disclosure is not limited thereto. As shown in fig. 11, the network assistance information providing apparatus 1100 provided by the embodiment of the present disclosure may include: a request message transmitting unit 1110 and a first notification message receiving unit 1120.

The request message sending unit 1110 may be configured to send a request message, where the request message carries a user terminal analysis and prediction request cell, and the user terminal analysis and prediction request cell includes a target analysis identifier, a target user terminal identifier, a target service flow identifier, and a target protocol data unit session identifier, so that a subscription message is sent to a target network data analysis function according to the user terminal analysis and prediction request cell, where the subscription message includes the user terminal analysis and prediction request cell. The first notification message receiving unit 1120 may be configured to receive a first notification message, where the first notification message carries a user terminal analysis response cell, where the user terminal analysis response cell includes network assistance information and the target analysis identifier, and the network assistance information is generated by the target network data analysis function in response to the subscription message.

In an exemplary embodiment, the request message transmitting unit 1110 may include: the first request message sending unit may be configured to send the request message to an access mobility management function, where the request message includes an N1 session management cell and the ue analysis and prediction request cell, so that the access mobility management function sends the subscription message to the target network data analysis function according to the ue analysis and prediction request cell.

In an exemplary embodiment, the request message transmitting unit 1110 may include: and a second request message sending unit, configured to send the request message to a session management function, where the request message includes an N1 session management cell, and the N1 session management cell includes the ue analysis and prediction request cell, so that the session management function parses the N1 session management cell to obtain the ue analysis and prediction request cell, and sends the subscription message to the target network data analysis function according to the ue analysis and prediction request cell.

In an exemplary embodiment, the first notification message receiving unit 1120 may include: the first notification message issuing unit can be used for receiving the first notification message in a protocol data unit session establishment or modification flow; or receiving the first notification message in a configuration update procedure.

In an exemplary embodiment, the network assistance information providing apparatus 1100 may further include: and the response message receiving unit can be used for receiving a response message returned for the request message, wherein the response message comprises the acceptance or rejection of the subscription message by the target network data analysis function.

In an exemplary embodiment, the user terminal analysis prediction request cell may further include a target analysis sub-identifier, wherein the network assistance information may be determined according to the target analysis identifier and the target analysis sub-identifier.

In an exemplary embodiment, the target traffic flow identification may include a target protocol data unit session identification and/or a target quality of service flow identification.

The specific implementation of each unit in the network auxiliary information providing apparatus provided in the embodiments of the present disclosure may refer to the content in the above network auxiliary information providing method, which is not described herein again.

Fig. 12 schematically shows a block diagram of a network assistance information providing apparatus according to an embodiment of the present disclosure. The network assistance information providing apparatus 1200 provided in the embodiment of the present disclosure may be provided in an AMF or an SMF, but the present disclosure is not limited thereto. As shown in fig. 12, the network assistance information providing apparatus 1200 provided by the embodiment of the present disclosure may include: a request message receiving unit 1210, a subscription message transmitting unit 1220, a second notification message receiving unit 1230, and a first notification message transmitting unit 1240.

The request message receiving unit 1210 may be configured to receive a request message sent by a target user terminal, where the request message carries a user terminal analysis and prediction request cell, and the user terminal analysis and prediction request cell includes a target analysis identifier, a target user terminal identifier, a target service flow identifier, and a target protocol data unit session identifier. The subscription message sending unit 1220 may be configured to send a subscription message to the target network data analysis function according to the ue analysis prediction request cell, where the subscription message includes the ue analysis prediction request cell. The second notification message receiving unit 1230 may be configured to receive a second notification message returned by the target network data analysis function for the subscription message, where the second notification message includes a user terminal analysis response cell, and the user terminal analysis response cell includes network assistance information and the target analysis identifier, and the network assistance information is generated by the target network data analysis function in response to the subscription message. The first notification message sending unit 1240 may be configured to send a first notification message to the target ue, where the first notification message carries the ue analysis response cell.

In an exemplary embodiment, the network assistance information providing apparatus 1200 may further include: the target network data analysis function selection unit may be configured to determine the target network data analysis function according to the configuration if the request message does not include the target network data analysis function identifier; or selecting the target network data analysis function supporting user terminal analysis according to the service discovery flow of the network storage function.

Fig. 13 schematically shows a block diagram of a network assistance information providing apparatus according to an embodiment of the present disclosure. The network assistance information providing apparatus 1300 provided by the embodiment of the present disclosure may be provided within the target NWDAF, but the present disclosure is not limited thereto. As shown in fig. 13, the network assistance information providing apparatus 1300 provided by the embodiment of the present disclosure may include: a subscription message receiving unit 1310, a second notification message generating unit 1320, and a second notification message transmitting unit 1330.

The subscription message receiving unit 1310 may be configured to receive a subscription message, where the subscription message includes a user terminal analysis prediction request cell, and the user terminal analysis prediction request cell includes a target analysis identifier, a target user terminal identifier, a target service flow identifier, and a target protocol data unit session identifier. The second notification message generating unit 1320 may be configured to generate a second notification message, where the second notification message includes a target user terminal identifier and a user terminal analysis response cell, and the user terminal analysis response cell includes network assistance information and the target analysis identifier, where the network assistance information is generated in response to the subscription message. The second notification message transmitting unit 1330 may be configured to transmit the second notification message.

In an exemplary embodiment, the second notification message generation unit 1320 may include: the target network element determining unit can be used for determining a target network element according to the user terminal analysis prediction request cell; a target data acquisition unit, configured to acquire target data from the target network element; and the network auxiliary information obtaining unit can be used for analyzing the target data to obtain the network auxiliary information.

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

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, and includes several instructions to cause a computing device (may be a personal computer, a server, a touch 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.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A network assistance information providing method, the method being performed by a target user terminal, the method comprising:

a request message is sent, wherein the request message carries a user terminal analysis and prediction request cell, the user terminal analysis and prediction request cell comprises a target analysis identifier, a target user terminal identifier, a target service flow identifier and a target protocol data unit session identifier, so that a subscription message is sent to a target network data analysis function according to the user terminal analysis and prediction request cell, the subscription message comprises the user terminal analysis and prediction request cell, and the target service flow identifier comprises Internet protocol filter information and a fully-called domain name;

And receiving a first notification message, wherein the first notification message carries a user terminal analysis response cell, the user terminal analysis response cell comprises network auxiliary information and the target analysis identifier, and the network auxiliary information is generated by the target network data analysis function in response to the subscription message.

2. The network assistance information providing method according to claim 1, wherein transmitting the request message includes:

and sending the request message to an access mobility management function, wherein the request message comprises an N1 session management cell and the user terminal analysis and prediction request cell, so that the access mobility management function sends the subscription message to the target network data analysis function according to the user terminal analysis and prediction request cell.

3. The network assistance information providing method according to claim 1, wherein transmitting the request message includes:

and sending the request message to a session management function, wherein the request message comprises an N1 session management cell, the N1 session management cell comprises the user terminal analysis prediction request cell, so that the session management function can analyze the N1 session management cell to obtain the user terminal analysis prediction request cell, and sending the subscription message to the target network data analysis function according to the user terminal analysis prediction request cell.

4. The network assistance information providing method according to claim 1, wherein receiving the first notification message includes:

receiving the first notification message in a protocol data unit session establishment or modification procedure; or alternatively

Receiving the first notification message in a configuration updating flow; or alternatively

And receiving the first notification message in a subsequent protocol data unit session modification procedure.

5. The network assistance information providing method according to claim 1, wherein the network assistance information includes a data transmission rate prediction value of the target traffic flow corresponding to the target traffic flow identification.

6. The network assistance information providing method according to claim 1, wherein the network assistance information includes a packet delay prediction value of the target traffic flow corresponding to the target traffic flow identifier.

7. The network assistance information providing method according to claim 1, further comprising:

and receiving a response message returned for the request message, wherein the response message comprises the acceptance or rejection of the subscription message by the target network data analysis function.

8. The network assistance information providing method according to claim 1, wherein the user terminal analysis prediction request cell further includes a target analysis sub-identifier, and wherein the network assistance information is determined according to the target analysis identifier and the target analysis sub-identifier.

9. The network assistance information providing method according to claim 8, wherein if the target analysis identifier is set to user terminal analysis and the target analysis sub-identifier is set to service experience, the network assistance information includes at least one of a data transmission rate prediction value and a data packet delay prediction value of a target traffic flow corresponding to the target traffic flow identifier.

10. The network assistance information providing method according to claim 8, wherein if the target analysis identifier is set to be a service experience or a user terminal analysis, the target analysis sub-identifier is set to be a bit rate recommendation, the network assistance information includes a data transmission rate prediction value of a target traffic flow corresponding to the target traffic flow identifier.

11. The network assistance information providing method according to claim 8, wherein if the target analysis identifier is set to be a service experience or a user terminal analysis, the target analysis sub-identifier is set to be a delay, the network assistance information includes a packet delay prediction value of a target traffic flow corresponding to the target traffic flow identifier.

12. The network assistance information providing method according to claim 8, wherein if the target analysis identifier is set to be a service experience or a user terminal analysis, and the target analysis sub-identifier is set to be a bit rate recommendation and a delay, the network assistance information includes a data transmission rate prediction value and a packet delay prediction value of a target traffic flow corresponding to the target traffic flow identifier.

13. The network assistance information providing method according to claim 1, wherein the target traffic flow identity comprises a target protocol data unit session identity and/or a target quality of service flow identity.

14. The network assistance information providing method according to claim 1, wherein the target traffic flow identifier further comprises a target application identifier.

15. The network assistance information providing method according to claim 1, wherein the user terminal analysis prediction request cell further includes region of interest information.

16. The network assistance information providing method according to claim 1, wherein the request message further includes a target network data analysis function identifier.

17. The network assistance information providing method of claim 1, wherein the user terminal analysis response cell further includes one or more of time stamp information, validity time, validity place, and prediction confidence of the network assistance information.

18. A network assistance information providing method, comprising:

receiving a request message sent by a target user terminal, wherein the request message carries a user terminal analysis and prediction request cell, the user terminal analysis and prediction request cell comprises a target analysis identifier, a target user terminal identifier, a target service flow identifier and a target protocol data unit session identifier, and the target service flow identifier comprises Internet protocol filter information and a fully-called domain name;

Sending a subscription message to a target network data analysis function according to the user terminal analysis prediction request cell, wherein the subscription message comprises the user terminal analysis prediction request cell;

receiving a second notification message returned by the target network data analysis function for the subscription message, wherein the second notification message comprises a user terminal analysis response cell, the user terminal analysis response cell comprises network auxiliary information and the target analysis identifier, and the network auxiliary information is generated by the target network data analysis function in response to the subscription message;

and sending a first notification message to the target user terminal, wherein the first notification message carries the user terminal analysis response cell.

19. The network assistance information providing method according to claim 18, further comprising:

if the request message does not include the target network data analysis function identification, determining the target network data analysis function according to configuration; or alternatively

And selecting the target network data analysis function supporting user terminal analysis according to the service discovery flow of the network repository function.

20. A network assistance information providing method, comprising:

Receiving a subscription message, wherein the subscription message comprises a user terminal analysis and prediction request cell, the user terminal analysis and prediction request cell comprises a target analysis identifier, a target user terminal identifier, a target service flow identifier and a target protocol data unit session identifier, and the target service flow identifier comprises Internet interconnection protocol filter information and a fully-called domain name;

generating a second notification message, wherein the second notification message comprises a target user terminal identifier and a user terminal analysis response cell, the user terminal analysis response cell comprises network auxiliary information and the target analysis identifier, and the network auxiliary information is generated in response to the subscription message;

and sending the second notification message.

21. The network assistance information providing method according to claim 20, wherein generating the second notification message includes:

according to the user terminal analysis prediction request cell, determining a target network element;

acquiring target data from the target network element;

and analyzing the target data to obtain the network auxiliary information.

22. A network assistance information providing apparatus, the apparatus being provided to a target user terminal, the apparatus comprising:

A request message sending unit, configured to send a request message, where the request message carries a user terminal analysis and prediction request cell, and the user terminal analysis and prediction request cell includes a target analysis identifier, a target user terminal identifier, a target service flow identifier, and a target protocol data unit session identifier, so that a subscription message is sent to a target network data analysis function according to the user terminal analysis and prediction request cell, where the subscription message includes the user terminal analysis and prediction request cell, and the target service flow identifier includes internet protocol filter information and a fully-called domain name;

the first notification message receiving unit is configured to receive a first notification message, where the first notification message carries a user terminal analysis response cell, where the user terminal analysis response cell includes network auxiliary information and the target analysis identifier, and the network auxiliary information is generated by the target network data analysis function in response to the subscription message.

23. The network assistance information providing apparatus according to claim 22, wherein the request message transmitting unit includes:

and the first request message sending unit is used for sending the request message to an access mobile management function, wherein the request message comprises an N1 session management cell and the user terminal analysis prediction request cell, so that the access mobile management function sends the subscription message to the target network data analysis function according to the user terminal analysis prediction request cell.

24. The network assistance information providing apparatus according to claim 22, wherein the request message transmitting unit includes:

and a second request message sending unit, configured to send the request message to a session management function, where the request message includes an N1 session management cell, and the N1 session management cell includes the ue analysis and prediction request cell, so that the session management function parses the N1 session management cell to obtain the ue analysis and prediction request cell, and sends the subscription message to the target network data analysis function according to the ue analysis and prediction request cell.

25. The network assistance information providing apparatus according to claim 22, wherein the first notification message receiving unit includes:

a first notification message issuing unit, configured to receive the first notification message in a protocol data unit session establishment or modification procedure; or receiving the first notification message in a configuration updating flow; or receiving the first notification message in a subsequent protocol data unit session modification procedure.

26. The network assistance information providing apparatus of claim 22, wherein the network assistance information includes a data transmission rate prediction value of the target traffic flow corresponding to the target traffic flow identification.

27. The network assistance information providing apparatus of claim 22, wherein the network assistance information includes a packet delay prediction value for the target traffic flow corresponding to the target traffic flow identification.

28. The network assistance information providing apparatus according to claim 22, further comprising:

and the response message receiving unit is used for receiving a response message returned for the request message, wherein the response message comprises the acceptance or rejection of the subscription message by the target network data analysis function.

29. The network assistance information providing apparatus according to claim 22, wherein the user terminal analysis prediction request cell further includes a target analysis sub-identifier, wherein the network assistance information is determined according to the target analysis identifier and the target analysis sub-identifier.

30. The network assistance information providing apparatus of claim 29, wherein if the target analysis identifier is set to user terminal analysis and the target analysis sub-identifier is set to service experience, the network assistance information includes at least one of a data transmission rate prediction value and a data packet delay prediction value of a target traffic flow corresponding to the target traffic flow identifier.

31. The network assistance information providing apparatus of claim 29, wherein the network assistance information includes a predicted data transmission rate value of a target traffic flow corresponding to the target traffic flow identifier if the target analysis identifier is set to a service experience or a user terminal analysis and the target analysis sub-identifier is set to a bit rate recommendation.

32. The network assistance information providing apparatus of claim 29, wherein the network assistance information includes a packet delay prediction value of a target traffic flow corresponding to the target traffic flow identifier if the target analysis identifier is set to be a service experience or a user terminal analysis and the target analysis sub-identifier is set to be a delay.

33. The network assistance information providing apparatus of claim 29, wherein the network assistance information includes a predicted data transmission rate and a predicted packet delay for a target traffic flow corresponding to the target traffic flow identifier if the target analysis identifier is set to be a service experience or a user terminal analysis and the target analysis sub-identifier is set to be a bit rate recommendation and a delay.

34. The network assistance information providing device according to claim 22, wherein said target traffic flow identity comprises a target protocol data unit session identity and/or a target quality of service flow identity.

35. The network assistance information providing device of claim 22, wherein the target traffic flow identifier further comprises a target application identifier.

36. The network assistance information providing apparatus according to claim 22, wherein the user terminal analysis prediction request cell further includes region of interest information.

37. The network assistance information providing apparatus according to claim 22, wherein the request message further includes a target network data analysis function identifier.

38. The network assistance information providing apparatus of claim 22, wherein the user terminal analysis response cell further comprises one or more of time stamp information, validity time, validity place, and prediction confidence of the network assistance information.

39. A network assistance information providing apparatus, comprising:

a request message receiving unit, configured to receive a request message sent by a target user terminal, where the request message carries a user terminal analysis prediction request cell, where the user terminal analysis prediction request cell includes a target analysis identifier, a target user terminal identifier, a target service flow identifier, and a target protocol data unit session identifier, and the target service flow identifier includes internet protocol filter information and a fully-called domain name;

A subscription message sending unit, configured to send a subscription message to a target network data analysis function according to the user terminal analysis prediction request cell, where the subscription message includes the user terminal analysis prediction request cell;

a second notification message receiving unit, configured to receive a second notification message returned by the target network data analysis function for the subscription message, where the second notification message includes a user terminal analysis response cell, and the user terminal analysis response cell includes network auxiliary information and the target analysis identifier, where the network auxiliary information is generated by the target network data analysis function in response to the subscription message;

and the first notification message sending unit is used for sending a first notification message to the target user terminal, wherein the first notification message carries the user terminal analysis response cell.

40. The network assistance information providing apparatus according to claim 39, further comprising:

a target network data analysis function selection unit, configured to determine, if the request message does not include a target network data analysis function identifier, the target network data analysis function according to configuration; or selecting the target network data analysis function supporting user terminal analysis according to the service discovery flow of the network storage function.

41. A network assistance information providing apparatus, comprising:

a subscription message receiving unit, configured to receive a subscription message, where the subscription message includes a user terminal analysis prediction request cell, and the user terminal analysis prediction request cell includes a target analysis identifier, a target user terminal identifier, a target service flow identifier, and a target protocol data unit session identifier, and the target service flow identifier includes internet protocol filter information and a full name domain name;

a second notification message generating unit, configured to generate a second notification message, where the second notification message includes a target user terminal identifier and a user terminal analysis response cell, where the user terminal analysis response cell includes network auxiliary information and the target analysis identifier, and the network auxiliary information is generated in response to the subscription message;

and the second notification message sending unit is used for sending the second notification message.

42. The network assistance information providing apparatus according to claim 41, wherein the second notification message generating unit includes:

a target network element determining unit, configured to determine a target network element according to the user terminal analysis prediction request cell;

A target data acquisition unit, configured to acquire target data from the target network element;

and the network auxiliary information obtaining unit is used for analyzing the target data to obtain the network auxiliary information.

43. An electronic device, comprising:

one or more processors;

a storage device configured to store one or more programs that, when executed by the one or more processors, cause the one or more processors to implement the network assistance information providing method of any one of claims 1 to 21.

44. A computer-readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the network assistance information providing method according to any one of claims 1 to 21.