WO2020169086A1 - 一种用户面路径的选择方法及装置 - Google Patents
一种用户面路径的选择方法及装置 Download PDFInfo
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- WO2020169086A1 WO2020169086A1 PCT/CN2020/076221 CN2020076221W WO2020169086A1 WO 2020169086 A1 WO2020169086 A1 WO 2020169086A1 CN 2020076221 W CN2020076221 W CN 2020076221W WO 2020169086 A1 WO2020169086 A1 WO 2020169086A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/72—Admission control; Resource allocation using reservation actions during connection setup
- H04L47/726—Reserving resources in multiple paths to be used simultaneously
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/30—Routing of multiclass traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/302—Route determination based on requested QoS
- H04L45/306—Route determination based on the nature of the carried application
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/80—Actions related to the user profile or the type of traffic
- H04L47/803—Application aware
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/80—Actions related to the user profile or the type of traffic
- H04L47/805—QOS or priority aware
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/80—Actions related to the user profile or the type of traffic
- H04L47/808—User-type aware
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
Definitions
- This application relates to the field of mobile communication technology, and in particular to a method and device for selecting a user plane path.
- the selection of network elements on the user plane path mainly involves the selection of user plane functional network elements
- the method for selecting user plane functional network elements is generally: session management network elements consider the data network name (data network name). , DNN), terminal equipment location (location), user plane function network element load (load) and other information, select a user plane function network element for the terminal device.
- the main problem with the above method of selecting a user plane function network element is that the session management network element may select a user plane function network element that cannot meet service requirements, for example, a remote user plane function network element is selected, Therefore, the remote user plane function network element will not be able to meet the delay requirements of the Mobile Edge Computing (MEC) service.
- MEC Mobile Edge Computing
- the present application provides a method and device for selecting a user plane path to select a more suitable user plane path for a terminal device to improve communication efficiency.
- this application provides a method for selecting a user plane path, including: a first network element determines at least one service type corresponding to a terminal device; and the first network element analyzes data based on service experience corresponding to the at least one service type. , Select the user plane path for the terminal device session. Based on this solution, the first network element determines the service experience analysis data corresponding to the at least one service type according to at least one service type corresponding to the terminal device, and then selects one or more pieces of data for the session of the terminal device based on the service experience analysis data
- the user plane path realizes the correlation between the user plane path and the service, helps to select a more appropriate user plane path for the terminal device, and can improve the communication efficiency.
- the first network element obtains service behavior analysis data of the terminal device from the data analysis network element; the first network element determines at least one service type according to the service behavior analysis data of the terminal device.
- the first network element obtains the service behavior data of the terminal device when the session is established; the first network element determines at least one of the service behavior data and service behavior analysis data of the terminal device when the session is established business type.
- the first network element sends a request message to the data analysis network element, the request message includes a filter condition, and the request message is used to request the terminal device for business behavior analysis data that meets the filter condition ;
- the first network element receives the business behavior analysis data of the terminal device from the data analysis network element, and the business behavior analysis data meets the filter condition.
- the filter condition includes time information and/or location information.
- the business behavior analysis data includes at least one of the following: identification information of the business, the probability of occurrence of the business, the duration of the business, the weight factor of the business, the location of the terminal device when the business occurs, and the business occurrence time.
- the first network element selects a user plane path for the session of the terminal device, and one user plane path satisfies the service experience requirement corresponding to at least one service type.
- the first network element selects multiple user plane paths for the session of the terminal device, and the multiple user plane paths respectively meet the service experience requirements corresponding to at least one service type.
- the first network element selects the user plane path for the session of the terminal device.
- the first network element selects the user plane path for the service of the terminal device.
- the first network element obtains service experience analysis data corresponding to the at least one service type from the data analysis network element. In a possible implementation method, the first network element obtains service experience analysis data and user plane path identification information corresponding to at least one service type, respectively.
- the user plane path identification information includes at least one of the following information: identification information of a user plane function network element, and identification information of a media plane server.
- the first network element sends a request message to the data analysis network element, and the request message includes identification information of at least one service type; the first network element receives at least one service type from the data analysis network element.
- the first network element sends a request message to the data analysis network element, the request message includes identification information of at least one service type and a filter condition, and the filter condition is used to determine the identification information of at least one service type The identification information of the corresponding user plane path; the first network element receives the service experience analysis data and the identification information of the user plane path corresponding to at least one service type from the data analysis network element.
- the first network element sends a request message to the data analysis network element.
- the request message includes identification information of at least one service type and identification information of the user plane path corresponding to the identification information of the at least one service type.
- the first network element receives from the data analysis network element service experience analysis data and user plane path identification information corresponding to at least one service type.
- the first network element determines that the user plane path cannot meet the service experience requirements of the service initiated by the terminal device on the session;
- the meta analyzes data based on the business experience corresponding to the initiated business, and reselects the user plane path for the initiated business.
- the first network element is a session management network element or a policy control network element, and the first network element selects the user plane function in the user plane path for the session of the terminal device Network element.
- the first network element selects a media plane server in the user plane path for the session of the terminal device.
- the first network element sends first indication information to the service server, where the first indication information is used to indicate identification information of the user plane path.
- the first network element is a service server, and the first network element selects the media plane server in the user plane path for the session of the terminal device.
- the first network element sends second indication information to the session management network element or the policy control network element, and the second indication information is used to indicate the identification information of the media plane server.
- this application provides a communication method, including: a data analysis network element obtains service experience analysis data corresponding to at least one service type; the data analysis network element sends at least one service type corresponding to the first network element Business experience analysis data. Based on this solution, the data analysis network element can send service experience analysis data corresponding to at least one service type to the first network element, so that the first network element can analyze the data according to the service experience analysis data corresponding to the at least one service type.
- the session of the terminal device selects one or more user plane paths, which realizes the user plane path and the service association, which helps to select a more suitable user plane path for the terminal device, and can improve the communication efficiency.
- the data analysis network element determines service experience analysis data of the first service type among the at least one service type.
- the data analysis network element determining the service experience analysis data of the first service type in the at least one service type includes: the data analysis network element obtains the first service type from a service server corresponding to the first service type
- the service data includes the service experience measurement value and the identification information of the media plane server;
- the data analysis network element obtains the network data associated with the service data of the first service type from the network, and the network data includes the transmission of the first service type
- the data analysis network element sends the identification information of the user plane path corresponding to the service experience analysis data to the first network element.
- the data analysis network element receives a request message sent by the first network element, and the request message includes identification information of at least one service type.
- the data analysis network element receives a request message sent by the first network element.
- the request message includes identification information of at least one service type and identification information of the user plane path corresponding to the identification information of the at least one service type. information.
- the data analysis network element receives a request message sent by the first network element, the request message includes identification information of at least one service type and a filter condition, and the filter condition is used to determine the identity of the at least one service type The identification information of the user plane path corresponding to the information.
- the data analysis network element obtains the service behavior analysis data of the terminal device
- the data analysis network element sends the service behavior analysis data of the terminal device to the first network element.
- the data analysis network element receives a request message from the first network element, and the request message includes a filter condition; the data analysis network element obtains service behavior analysis data of the terminal device that meets the filter condition.
- the filter condition includes time information and/or location information.
- the business behavior analysis data includes at least one of the following: identification information of the business, the probability of occurrence of the business, the duration of the business, the weight factor of the business, the location of the terminal device when the business occurs, and the business occurrence time.
- the first network element is a session management network element or a policy control network element
- the identification information of the user plane path includes identification information of the user plane function network element
- the identification information of the user plane path also includes the identification information of the media plane server.
- the first network element is a service server
- the identification information of the user plane path includes the identification information of the media plane server.
- the present application provides a device that has the function of implementing the user plane path selection method of any of the foregoing aspects or the implementation method in any aspect.
- This function can be realized by hardware or by hardware executing corresponding software.
- the hardware or software includes one or more modules corresponding to the above-mentioned functions.
- the present application provides a device including: a processor and a memory; the memory is used to store computer-executable instructions, and when the device is running, the processor executes the computer-executable instructions stored in the memory to make the device Perform the user plane path selection method as described in any aspect or the implementation method in any aspect.
- the present application provides a device including: including units or means for performing each step of any of the above aspects.
- the present application provides a device including a processor and an interface circuit.
- the processor is configured to communicate with other devices through the interface circuit and execute any method provided in any of the above aspects.
- the processor includes one or more.
- the present application provides a device, including a processor, configured to be connected to a memory and used to call a program stored in the memory to execute the method in any implementation manner of any of the foregoing aspects.
- the memory can be located inside the device or outside the device.
- the processor includes one or more.
- the present application also provides a computer-readable storage medium having instructions stored in the computer-readable storage medium, which when run on a computer, cause a processor to execute the method described in any of the foregoing aspects.
- the present application also provides a computer program product including instructions, which when run on a computer, causes the computer to execute the method described in any of the foregoing aspects.
- the present application also provides a chip system, including a processor, configured to execute the methods described in the foregoing aspects.
- the present application also provides a communication system, including a first network element configured to execute any implementation method of the first aspect or the first aspect, and a first network element configured to execute any of the second aspect or the second aspect.
- a data analysis network element that implements the method.
- Figure 1 is a schematic diagram of a possible network architecture provided by this application.
- FIG. 2 is a schematic flowchart of a method for selecting a user plane path provided by this application
- FIG. 3 is a schematic flowchart of another method for selecting a user plane path provided by this application.
- FIG. 4 is a schematic flowchart of another method for selecting a user plane path provided by this application.
- Figure 5 is a schematic diagram of a device provided by this application.
- FIG. 6 is a schematic diagram of another device provided by this application.
- Fig. 7 is a schematic diagram of another device provided by this application.
- Session management function (SMF) network element, which includes at least one of the following functions: session management (such as session establishment, modification, and release, including tunnel maintenance between UPF and AN), UPF network element selection and control , Service and Session Continuity (Service and Session Continuity, SSC) mode selection, roaming.
- session management such as session establishment, modification, and release, including tunnel maintenance between UPF and AN
- UPF network element selection and control including tunnel maintenance between UPF and AN
- Service and Session Continuity Service and Session Continuity, SSC) mode selection, roaming.
- SSC Service and Session Continuity
- a policy control function (PCF) network element includes at least one of the following functions: user subscription data management, policy control, charging policy control, and quality of service (QoS) control.
- PCF policy control function
- QoS quality of service
- An application function (AF) network element includes at least one of the following functions: a function of processing service-related signaling and media data, and a QoS authorization interaction function for performing services on the network side.
- NWDAF Network Data Analysis function
- NWDAF network elements can learn from network function (NF) network elements, operation management and maintenance (Operation, Administration, Maintenance, OAM) system, terminal equipment or AF network Meta collects data and performs data analysis on the collected data to obtain data analysis results.
- the NWDAF network element can also send the obtained data analysis results to the NF, OAM system, terminal equipment or AF network element, so that these entities can make corresponding policy formulation and operation execution.
- the mobility management network element in this application may be the AMF network element shown in FIG. 1, or may be a network element having the function of the aforementioned AMF network element in a future communication system.
- the user plane function network element in this application may be the UPF network element shown in FIG. 1, or may be a network element having the function of the above UPF network element in the future communication system.
- the session management network element in this application may be the SMF network element shown in FIG. 1, or may be a network element having the function of the above SMF network element in the future communication system.
- the data analysis network element in this application may be the NWDAF network element shown in FIG. 1, or may be a network element having the function of the aforementioned NWDAF network element in a future communication system.
- the service server in this application may be the AF network element shown in FIG. 1, or may be a network element having the function of the aforementioned AF network element in the future communication system.
- the policy control network element in this application may be the PCF network element shown in FIG. 1, or may be a network element having the function of the aforementioned PCF network element in a future communication system.
- the terminal equipment of the present application (also referred to as user equipment (UE)) is a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; or on the water (Such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites, etc.).
- UE user equipment
- the terminal may be a mobile phone (mobile phone), a tablet computer (pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, an industrial control (industrial control) Wireless terminals in, self-driving (self-driving), wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety, Wireless terminals in a smart city, wireless terminals in a smart home, etc.
- VR virtual reality
- AR augmented reality
- wireless terminals in remote medical wireless terminals in smart grid, wireless terminals in transportation safety, Wireless terminals in a smart city, wireless terminals in a smart home, etc.
- the mobility management network element is the AMF network element
- the session management network element is the SMF network element
- the policy control network element is the PCF network element
- the user plane function network element is the UPF network element
- the data analysis network is an NWDAF network element
- the service server is an AF network element as an example for description.
- AMF Access Management Function
- SMF Session Management Function
- PCF PCF
- UPF User Plane Function
- NWDAF NWDAF
- AF AF
- UE access network equipment
- the AMF described later in this application can be replaced with a mobility management network element
- SMF can be replaced with a session management network element
- PCF can be replaced with a policy control network element
- UPF can be replaced with a user plane function network element
- NWDAF NWDAF Both can be replaced with data analysis network elements
- AF can be replaced with service servers
- RAN can be replaced with access network equipment
- UEs can be replaced with terminal equipment.
- the user plane path selected for the terminal device includes various network elements (such as base stations, user plane function network elements, media plane servers, etc.).
- network elements such as base stations, user plane function network elements, media plane servers, etc.
- service experience such as service end-to-end delay, packet loss rate, service average opinion score (MOS), etc.
- MEC service average opinion score
- the user plane path network element can meet the delay requirements of the MEC, while the user plane path network element of the non-MEC cannot meet the MEC delay requirements.
- the selection of network elements on the user plane path mainly involves the selection of user plane functional network elements
- the method for selecting user plane functional network elements is generally: session management network elements consider the data network name (data network name). , DNN), terminal equipment location (location), user plane function network element load (load) and other information, select a user plane function network element for the terminal device.
- the main problem with the above method of selecting user plane function network elements is that the user plane function network element selected by the session management network element is not associated with a specific service, which may cause the selected user plane function network element to fail to meet specific service requirements.
- the session management network element selects the user plane function network element in the establishment process of the session (such as the protocol data unit (PDU) session). Since no specific business is involved in the session establishment process, it is related to the business The requirements (such as MEC service delay requirements, MOS requirements, etc.) have not been considered. Therefore, the session management network element may choose a user plane function network element that cannot meet the service requirements. For example, a remote ( remote) user plane function network element, the remote user plane function network element will not be able to meet the delay requirement of the MEC service.
- PDU protocol data unit
- the present application provides a method for selecting a user plane path.
- This method can be used to select one or more user plane paths for the UE.
- the user plane path refers to the user data packet transmission path.
- a user plane path consists of multiple nodes, such as RAN, UPF (such as branching point UPF, anchor UPF, etc.) , Media server.
- UPF such as branching point UPF, anchor UPF, etc.
- Media server Media server
- Different user plane paths correspond to different path lengths, node loads (such as UPF load), and node processing capabilities (such as MEC DNAI corresponding media server can distribute content to local users, and central DNAI corresponding media server may store
- MOS take MOS as an example.
- the above-mentioned user plane path related factors that affect the business experience are constantly changing dynamically, for example, the achievable business experience of a certain path in different time periods and locations may also be different.
- the media plane server can also be called content server (content server), which refers to the functional network element that receives, processes, stores, and forwards the media plane data of the business at the service level. It can be deployed independently or integrated with AF Deployment, for example, is part of the AF function network element.
- a media plane server corresponds to a data network access identifier (DNAI).
- DNAI data network access identifier
- An AF corresponds to one or more media plane servers.
- a service provider deploys a global central AF and multiple media plane servers. Some media plane servers are deployed in the center of the network as a central media plane server, and some media plane servers Deployed at the edge as a MEC media plane server.
- the user plane path selection method provided in this application predicts the service type corresponding to the service that the UE will initiate based on the historical service behavior of the UE, and selects the UPF and media plane server in the user plane path for the UE in combination with the service type.
- the service experience that can be achieved by different user plane paths, such as service MOS or latency experience.
- Time in this application is sometimes also called “time information”, and both have the same meaning;
- location in this application is sometimes called “location information”, and both have the same meaning.
- time can be an absolute time, for example, from 00:00 on January 1, 2017 to 24:00 on January 30, 2017, or every Monday to Friday; it can also be a relative time, such as relative to a certain setting Within one month of the specified time.
- the granularity of the time information may be the granularity of hours, or minutes or days, which is not limited in the embodiment of the present application.
- the location may be a location defined in the 3rd generation partnership project (3GPP) communication network, which may be referred to as the communication network location, such as serving cell A or registration area B; the location may also be in a non-3GPP communication network
- 3GPP 3rd generation partnership project
- the defined location such as a specific geographic location, such as longitude and latitude or a global positioning system (global positioning system, GPS) location, may be referred to as geographic information, which is not limited in the embodiment of the present application.
- NWDAF collects data and conducts model training based on the collected data to analyze and obtain the service behavior model of the UE/user group and the service experience model of a certain service type.
- the data here refers to the sample data used by NWDAF for model training, including at least one of the following data: network data (network data) collected from operator networks (such as 5G NF (such as AMF, SMF, PCF, etc.), from AF Collected service data (service data), UE data collected from users, and management data collected from OAM (management data).
- network data network data collected from operator networks (such as 5G NF (such as AMF, SMF, PCF, etc.), from AF Collected service data (service data), UE data collected from users, and management data collected from OAM (management data).
- the following describes the service behavior model of the UE/user group and the service experience model of a certain service type respectively.
- the service behavior model here is used to characterize the service characteristics of a UE/user group, for example, one or more service types used by a UE/user group at a certain location and time, and each type of service is used Feature data such as the probability, duration, and concurrent service types used.
- NWDAF collects relevant historical data of the UE/user group (such as historical service data of the UE/user group obtained from AF, historical network data related to the UE/user group obtained from NF or OAM, The historical service data obtained by the UE/user group itself, etc.), and data analysis is performed to obtain the service behavior model of the UE/user group. It should be noted that this application does not limit the specific method (or algorithm) for NWDAF training to obtain the business behavior model, and can refer to related solutions in the prior art, which will not be repeated here.
- Table 1 exemplarily shows the input data related to the business behavior model (that is, the data collected by NWDAF).
- Table 2 shows the output data obtained after inputting the data of Table 1 into the business behavior model (the output data includes UE business behavior analysis data).
- the service behavior analysis data of the UE output by NWDAF can be differentiated by service type, that is, it includes the service behavior analysis data of one or more service types, and the service behavior of each service type The analysis data is used to characterize the relevant characteristics of the business type.
- the service behavior analysis data of the UE output by the NWDAF may not be distinguished by service type, but the output UE service behavior analysis data case is stored in any format.
- Table 2 UE's business behavior model output data (output data includes UE's business behavior analysis data)
- NWDAF can collect UE’s service-related data (ie input data) as shown in Table 1, and perform data analysis to obtain output data as shown in Table 2, where the output data includes UE’s service Behavioral analysis data.
- NWDAF collects and obtains a large amount of data, and obtains a business experience model of a certain type of business by analyzing the collected data.
- the business experience model here, for example, may be a business MOS model, which is used to express the relationship between the business experience and the characteristic data.
- the characteristic data refers to data related to the service experience and affecting the quality of the service experience.
- the characteristic data comes from the data collected by NWDAF, and may include data from the network, AF data, UE data, etc., for example. This application does not limit the training method of the service experience model, and can refer to related methods in the prior art.
- training the service experience model may include the following steps:
- NWDAF may collect historical service data of a service from AF, and obtain historical network data from network elements (for example, RAN, AMF, SMF, UPF, OAM, etc.).
- network elements for example, RAN, AMF, SMF, UPF, OAM, etc.
- the service data involved in this application may be: bandwidth, delay, packet loss rate, jitter buffer, Transmission Control Protocol (TCP) congestion window, TCP receiving window, media encoding type, media encoding Data of parameters such as speed, MOS measurement value, and identification information of the media plane server (such as DNAI).
- TCP Transmission Control Protocol
- media encoding type such as speed, MOS measurement value, and identification information of the media plane server (such as DNAI).
- the network data involved in this application can be any of the following parameters: bandwidth, delay, packet loss rate, signal receiving power (reference signal receiving power, RSRP), signal receiving quality (reference signal receiving quality, RSRQ), Block error rate (BLER) and channel quality indication (CQI), network slice identification information, data network name (DNN), core network user plane function network element identification information, connection The identification information of the connected network element.
- NWDAF obtains historical service data corresponding to one or more services such as video services, payment services, autonomous driving services, and vertical services through AF network elements.
- NWDAF can obtain historical network data from 5G NF.
- Table 1-1 Business data collected by NWDAF from AF
- Step B The data analysis network element analyzes historical network data and historical service data to obtain a service experience model of the service.
- the service experience model refers to the relationship between the service experience and the network data.
- a service experience model is shown in the following formula (1):
- X(X0, X1...Xn) variables represent each network data
- X1 can be FBR
- X2 can be PDB
- X3 is PER
- Wn represents the weight of the nth variable
- n represents the number of variables
- Xn represents the nth variable.
- n is an integer greater than or equal to 1.
- the value of H(x) is a value representing the quality of the service experience.
- the MOS measurement value in Table X can be used as the sample data of the value of the service experience.
- Step C According to the model relationship and the current actual or predicted network data X, the data analysis network element can calculate the value of H(X).
- the value of the service experience calculated by NWDAF is also the value Apply for the said business experience analysis data.
- the above method is an example of NWDAF obtaining business experience analysis data according to the business experience model.
- the business experience analysis data refers to the data obtained through NWDAF analysis that can be used to indicate the quality of the business experience. For example, the greater the value of the business experience analysis data , Which means that the business experience is better.
- Table 3 exemplarily shows the training results of the service experience model, that is, Table 3 shows the characteristic data (including service type, UE location, timestamp/time interval, user plane path identification information) and service experience The corresponding relationship. It can be understood that these characteristic data can be used as the applicable conditions of the service experience data.
- business experience analysis data can also include business delay, packet loss rate, business success rate, and average user satisfaction with the business (80% Users are satisfied with their business experience) and so on.
- the foregoing Table 3 only shows the model training results of service x (service x corresponds to a type of service, and service x is identified by Application ID x).
- the training results of the service experience model can also include the training results of other services, such as the model training results of service y (service y corresponds to one service type), service z (service z corresponds to one service type), etc. .
- the characteristic data includes service type, UE location, timestamp/time interval, and user plane path identification information.
- the characteristic data can also only include service type, UE location, and time.
- Stamp/time interval, part of the information in the user plane path, such as service type, user plane path identification information, or service type, user plane path identification information, UE location, or characteristic data may also include other information.
- the application is not limited. The method for selecting the user plane path provided by the application will be described below with reference to FIG. 2. This method can be applied in the process of establishing a session with the terminal device, and also when the terminal device initiates a service after the session is established.
- the method includes the following steps:
- Step 201 The first network element determines at least one service type corresponding to the UE.
- the first network element may analyze data according to the service behavior of the UE to determine at least one service type of the UE.
- the first network element may obtain UE service behavior analysis data from NWDAF.
- the first network element sends a request message to NWDAF.
- the request message includes the identification information of the UE.
- the request message is used to request to obtain service behavior analysis data of the UE.
- the NWDAF sends the A network element sends the service behavior analysis data of the UE, for example, sends part or all of the information in Table 2 above to the first network element.
- the request message further includes a filter condition, and the request message is used to request to obtain service behavior analysis data of the UE that meets the filter condition.
- the filter condition may be time and/or location
- the request message is used for Request the UE's service behavior analysis data at the time and/or the location.
- the first network element requests the NWDAF to obtain the service behavior analysis data of UE1 (identified by UE ID) between 12:00-13:00 and RAN1, then NWDAF sends the UE1 to the first network element at 12:00 Business behavior analysis data corresponding to the business occurring in RAN1 between -13:00.
- the request message may specifically be a subscription request message, which is used to subscribe to the service behavior analysis data of the UE.
- the first network element may subscribe to the service of the UE from the NWDAF when the UE is registered on the network. Behavioral analysis data.
- the NWDAF After receiving the subscription request message, the NWDAF starts to collect relevant data, generates service behavior analysis data of the UE, and then sends the generated service behavior analysis data of the UE to the first network element.
- the request message may specifically be an instant request message, and the instant request message is used to instantly request service behavior analysis data of the UE.
- the NWDAF obtains the previously generated service behavior analysis data of the UE, and then sends the service behavior analysis data to the first network element.
- the first network element obtains service behavior analysis data of one or more UEs from NWDAF at UE granularity, and the service behavior analysis data of each UE is relatively independent.
- the first network element sends a request message (which can be a subscription request message or an instant request message) to the NWDAF, which carries the identification information of one or more UEs. Subsequently, the NWDAF sends the first network element the corresponding corresponding to each UE.
- the first network element may also obtain service behavior analysis data of one or more user groups from NWDAF at the granularity of the user group, where one user group includes one or more UEs.
- the identification information of each user group and the business behavior analysis data of each user group characterize the common business behavior characteristics of all users in the group.
- the first network element sends a request message (which can be a subscription request message or an instant request message) to NWDAF, which carries identification information of one or more user groups, and subsequently, NWDAF sends each Business behavior analysis data corresponding to user groups.
- NWDAF Massive Internet of Things
- the first network element determines a Massive Internet of Things (MIOT) user group according to the mobility attribute of the UE, it subscribes/requests the service behavior analysis data of the user group from NWDAF.
- MIOT Massive Internet of Things
- the first network element may obtain the UE service behavior analysis data locally.
- the first network element itself executes the function of NWDAF in the foregoing implementation method to obtain the service behavior analysis data of the UE.
- the first network element may obtain the service behavior analysis data of the UE, and then determine at least one service type of the UE according to the UE service behavior analysis data.
- the first network element may determine all service types in the UE's service behavior analysis data as at least one service type of the UE, that is, the method is to analyze all service types in the UE's service behavior analysis data.
- the service type corresponding to the service that the UE may initiate after the session is established.
- the first network element may also determine part of the service types in the service behavior analysis data of the UE as at least one service type of the UE, for example, determine the one or more service types with the highest occurrence probability in the UE as At least one service type of the UE, that is, the method is to use the one or more service types with the greatest occurrence probability in the service behavior analysis data of the UE as the service type corresponding to the service that the UE may initiate after the session is established.
- the first network element may also determine the at least one service type according to the service behavior data of the UE when or after the session is established and the service behavior analysis data.
- the service behavior data may include the time when the UE established the session, the location when the session was established, and so on.
- the first network element can analyze the UE’s service behavior data in 12:00-13:00, Part or all of the service types in the service types corresponding to the first position are used as at least one service type determined above.
- the first network element determines at least one service type of the UE according to the service behavior analysis data of the UE. In other words, before the actual service is initiated, the first network element predicts one or more service types that the UE will initiate in the future based on the historical service behavior of the UE. In another implementation method, if the UE has initiated one service or multiple services, the first network element only needs to determine one or more service types according to the service identification information of the initiated service.
- Step 202 The first network element selects a user plane path for the UE session according to the service experience analysis data corresponding to the at least one service type.
- the first network element may obtain service experience analysis data corresponding to at least one service type from the NWDAF.
- the first network element may also obtain service experience analysis data corresponding to at least one service type from itself. In this implementation method, it is equivalent that the first network element itself executes the function of NWDAF to obtain service experience analysis data corresponding to at least one service type.
- the first network element obtains service experience analysis data corresponding to at least one service type from NWDAF as an example for description.
- the first network element can obtain the correspondence between the service type, service experience analysis data, and user plane path identification information, so that one or more sessions can be selected for the UE according to the correspondence.
- User plane path Based on the foregoing description, the NWDAF stores the training results of the service experience model as shown in Table 3 above, so the first network element can obtain the identification information of the user plane path corresponding to the service type from the NWDAF corresponding to the identification information of the user plane path Business experience analysis data.
- three implementation methods are given below.
- Method 1 The first network element sends a request message to the NWDAF, the request message including identification information of at least one service type, and the first network element receives from the NWDAF the identification information of the user plane path corresponding to the at least one service type and the The service experience analysis data corresponding to the identification information of the user plane path.
- the request message includes the identification information of service x, the identification information of service y, and the identification information of service z.
- service x, service y, and service z respectively correspond to a service type
- NWDAF sends service x
- the request message may also carry filter conditions, for example, the filter conditions include: time and/or location.
- the first network element can use the service type obtained from NWDAF in the filter condition Under the corresponding identification information of the user plane path and the service experience analysis data corresponding to the identification information of the user plane path, the user plane path and the corresponding service experience analysis data as shown in Table 4 are further obtained.
- NWDAF directly obtains the user plane path corresponding to a service type (optionally, obtains the user plane path corresponding to a service type under certain filtering conditions , Where the user plane path can be one or more user plane paths), and analyze the service experience analysis data that the user plane path can reach, and then NWDAF sends the identification information of the user plane path together with the corresponding service experience analysis data To SMF/PCF.
- Method 2 The first network element sends a request message to NWDAF.
- the request message includes identification information of at least one service type and a filter condition.
- the filter condition is the same as the user plane path selection condition of the first network element itself.
- the filter condition is When the NWDAF determines the identification information of the user plane path corresponding to the identification information of the at least one service type, the first network element receives the identification information of the user plane path corresponding to the at least one service type and the identifier of the user plane path from the NWDAF.
- the service experience analysis data corresponding to the information that is, the identification information of the user plane path under the filtering condition and the service experience analysis data are obtained.
- the request message carries identification information and filter conditions of at least one service type (such as DNN, single network slice selection assistance information (S-NSSAI), time, location, etc.), but does not carry user plane Identification information of the path.
- the NWDAF determines the service experience analysis data corresponding to the at least one service type under the filter condition.
- the first network element after obtaining the service experience analysis data, the first network element itself determines the identification information of the user plane path according to the above filtering conditions, and then associates the identification information of the user plane path with the received service experience analysis data.
- the request message includes the identification information of service x, the identification information of service y, the identification information of service z, and the filter condition.
- the filter condition is: filter condition 1 (time (12:00-13:00), location ( RAN1), DNN1 and S-NSSAI1), filter condition 2 (time (12:00-13:00), location (RAN1), DNN1 and S-NSSAI2), filter condition 3 (time (12:00-13:00) ), location (RAN1), DNN2 and S-NSSAI3).
- NWDAF obtains the service experience analysis data of service x under the above three filter conditions, and NWDAF sends service x and the filter conditions and the corresponding service experience analysis data to SMF/PCF .
- SMF/PCF can obtain the identification information of the user plane path corresponding to the service type and the service experience analysis data corresponding to the identification information of the user plane path. Further, SMF/PCF can also obtain the data as shown in Table 4. The displayed user plane path and corresponding business experience analysis data.
- method 2 The main difference between this method 2 and method 1 is that in method 1, NWDAF is required to determine the user plane path corresponding to the service type and return the user plane path to SMF/PCF; while in method 2, this is not necessary, but SMF/PCF The user plane path is determined by itself according to the filter condition, and the user plane path is stored locally for the SMF/PCF itself to associate the user plane path with the service experience analysis data.
- Method 3 The first network element sends a request message to NWDAF.
- the request message includes identification information of at least one service type and identification information of a user plane path corresponding to the identification information of the at least one service type.
- the first network element receives from NWDAF The identification information of the user plane path corresponding to the at least one service type and the service experience analysis data corresponding to the identification information of the user plane path respectively.
- SMF/PCF indicates the user plane path corresponding to a service type to NWDAF, and NWDAF obtains the user plane path to enable the service experience analysis data reached by the service type, and then NWDAF converts the user
- the identification information of the surface path and the corresponding service experience analysis data are sent to the SMF/PCF.
- the request message carries identification information of at least one user plane path (such as UPF ID+DNAI) and identification information of at least one service type, that is, the first network element requests the user plane path from NWDAF
- the identification information corresponding to the business experience analysis data of one or more services.
- SMF/PCF receives the service experience analysis data, it associates the sent user plane path with the received service experience analysis data.
- the request message includes the identification information and filter conditions of service x.
- the filter conditions are: time (12:00-13:00), location (RAN1), UPF1 ID+DNAI1 and UPF2 ID+DNAI2, and the first network
- the element is SMF or PCF
- the first network element can analyze the data according to the identification information of the user plane path corresponding to the service type obtained from NWDAF and the service experience analysis data corresponding to the identification information of the user plane path.
- SMF/PCF also The user plane path and corresponding service experience analysis data shown in Table 4 can be obtained.
- the request message in any one of the above method 1 to method 3 may be a subscription request message or an instant request message.
- the subscription request message is used to subscribe to service experience analysis data of a service type, that is, the first network element may subscribe to the NWDAF for service experience analysis data of the service type.
- the NWDAF After receiving the subscription request message, the NWDAF starts to generate service experience analysis data of the service type, and then sends the generated service experience analysis data to the first network element.
- SMF/PCF can call the service Nnwdaf_EventsSubscription_Subscribe, which carries ⁇ Event ID:Estimated service MOS,EventFilter(UPF list*,DNAI list*,service ID list*) ⁇ , where Event ID Indicates the event identifier, Estimated service MOS indicates that the event is a request to obtain service experience analysis data, EventFilter is a filter, and the filter includes UPF list (UPF list), DNAI list (DNAI list) and service type identification list (service ID list) , UPF list includes one or more UPF IDs, DNAI list includes one or more DNAIs, and service ID list includes one or more service IDs.
- the filter also carries time (such as time window), UE location (area), etc.
- the request message is an instant request message
- the instant request message is used to instantly request service experience analysis data.
- the NWDAF obtains the service experience analysis data that has been generated in advance, and then sends the service experience analysis data to the first network element.
- SMF/PCF can call the service Nnwdaf_AnalyticsInfo_Request response or Nnwdaf_EventsSubscription_Notify, carrying (Event ID, UPF list*, DNAI list*, service ID list*, service MoS Analytics), where service MoS Analytics is business experience analysis data.
- one or more user plane paths can be selected for the UE session.
- the following describes the process of selecting the user plane path based on Table 2 and Table 4 in conjunction with a specific example, where the first network element is SMF/PCF.
- SMF/PCF determines the probability of initiating service x between 12:00-13:00 and RAN1 Maximum, at least one service type determined by SMF/PCF is the service x (service x corresponds to a service type).
- SMF/PCF determines that the service experience analysis data corresponding to the user plane path 1 (UPF1 ID+DNAI1) corresponding to service x is between 12:00-13:00 and RAN1 is 4.5, and service x is at 12: 00-13:00, the service experience analysis data corresponding to user plane path 2 (UPF1 ID+DNAI2) corresponding to RAN1 is 4, then SMF/PCF can determine that the user plane path selected for the session of the UE is the user plane path 1.
- the identification information of the user plane path 1 includes the identification information of UPF1 and DNAI2.
- the UE initiates the establishment of a session.
- SMF/PCF determines that the service will be initiated between 12:00-13:00 and RAN1.
- the probability of service y is the largest, then at least one service type determined by SMF/PCF is the service x (service x corresponds to one service type) and service y (service y corresponds to one service type).
- SMF/PCF determines that the service experience analysis data corresponding to the user plane path 1 (UPF1 ID+DNAI1) corresponding to service x is between 12:00-13:00 and RAN1 is 4.5, and service x is at 12: 00-13:00, the service experience analysis data corresponding to user plane path 2 (UPF1 ID+DNAI2) corresponding to RAN1 is 4, then SMF/PCF can determine that the user plane path selected for the session of the UE is the user plane path 1.
- the identification information of the user plane path 1 includes the identification information of UPF1 and DNAI1.
- the identification information includes the identification information of UPF1 and DNAI2. That is, in this example, the user plane path selected by SMF/PCF for service x is user plane path 1, and the user plane path selected for service y is user plane path 2.
- the first network element may select a user plane path for the UE session, and the user plane path satisfies the service experience requirement corresponding to at least one service type (for example, the user plane path is required to be the best). That is, the user plane path can enable the service experience of each service type to meet the corresponding service experience requirements. For example, if the at least one service type determined by the first network element has only one service type, only one user plane path is finally determined, and the user plane path meets the service experience requirements corresponding to the at least one service type.
- At least one service type determined by the first network element includes multiple service types, and the user plane paths determined by the first network element for these service types are the same user plane path, the user plane paths need to meet all Describes the service experience requirements corresponding to each of the at least one service type.
- the user plane path may also be required to satisfy a condition: the service experience analysis data corresponding to the user plane path is greater than a preset value, and the finally selected user plane path is selected from the user plane paths that satisfy the condition.
- the service experience analysis data corresponding to the user plane path is greater than a preset value
- the finally selected user plane path is selected from the user plane paths that satisfy the condition.
- the user plane path corresponding to service x there are three user plane paths with corresponding service experience analysis data greater than the preset value 4. Then a further random or basic strategy (such as the load of the path) will be selected from these three users. Select one or more of the plane paths as the final user plane path.
- the user plane path is selected from all paths that satisfy the service experience of the multiple service types at the same time, that is, the user plane path satisfies all
- the service experience requirements corresponding to multiple service types are described.
- the first network element may also select multiple user plane paths for the session of the UE, and the multiple user plane paths respectively meet service experience requirements corresponding to at least one service type (for example, the user plane path is required to be optimal). That is, each selected user plane path needs to meet the service experience requirements corresponding to the service type corresponding to the user plane path. For example, if service x, service y, and service z correspond to user plane path 1, user plane path 2, and user plane path 3 respectively, then user plane path 1 needs to meet the service experience requirements corresponding to service x, and user plane path 2 needs to meet service The service experience requirement corresponding to y, and the user plane path 3 needs to meet the service experience requirement corresponding to service z.
- the first network element determines the service experience analysis data corresponding to the at least one service type according to the at least one service type corresponding to the UE, and then selects one or more user planes for the UE session based on the service experience analysis data
- the path realizes the association between the user plane path and the service experience, helps to select a more appropriate user plane path for the UE, and can improve communication efficiency.
- the solution of selecting the user plane path can be applied before the UE initiates the actual service (for example, when the UE initiates a session), that is, the first network element predicts one or more services that the UE will initiate in the future based on the historical service behavior of the UE.
- the user plane path is selected for the session of the UE, and the user plane path can enable the service experience of the service type to be initiated by the UE to meet the corresponding service experience requirements.
- the solution of selecting the user plane path can also be applied to when the UE initiates an actual service, the first network element selects the user plane path for the session of the UE according to the service experience analysis data corresponding to the service type actually initiated.
- the service experience of the service actually initiated by the UE meets the corresponding service experience requirement. It can be understood that, at this time, selecting the user plane path for the UE session is also selecting the user plane path for the actually initiated service in the UE session.
- the first network element such as SMF or PCF or AF
- selects the user plane path for the UE session if the first network element determines that the user plane path cannot meet the service experience of the service initiated by the UE on the session If required, the first network element can reselect the user plane path for the initiated service according to the service experience analysis data corresponding to the initiated service.
- the method of the above embodiment is to predict the service type corresponding to the service that the UE may initiate before launching a specific service on the UE session, and select one or more user planes for the UE based on the service type Path, but when the UE specifically initiates a session on the session, it is possible that the service type of the service initiated in the session is different from the previously predicted service type, resulting in the selected user plane path that does not conform to the specific initiated service
- service experience requirements for example, it is not the best user plane path
- This application does not limit the method of reselection.
- the first network element predicts that the service type to be initiated by the UE in session 1 is service x, and determines that the best user plane path corresponding to the service x is user plane path 1 (including UPF1 and media plane server 1) , But the service actually initiated by the UE in session 1 is service y, and user plane path 1 is not the best user plane path for service y, or it is understood that user plane path 1 cannot meet the service experience requirements of service y, then the first The network element can reselect a user plane path for service y of the session.
- the selected user plane path is user plane path 2 (including UPF1 and media plane server 2)
- user plane path 2 is the best user plane for service y Path, or understood as user-plane path 2 can meet the service experience requirements of service y.
- the two time points correspond to the service of the UE
- Different behavioral data results in different service behavior analysis data of the UE. For example, due to mobility, the UE has changed its network location. This will cause the user plane path selected based on the service experience analysis data of the UE’s original location to be suboptimal.
- the first network element should reselect the user plane path based on the service experience analysis data of the UE in the new location. Specifically, refer to the method for selecting the user plane path in this application to reselect the user plane path.
- the first network element predicts that the service type to be initiated by the UE in session 1 is service x, and determines that the best user plane path corresponding to the service x is user plane path 1 (including UPF1 and media plane server 1) , And when the time is 12:00-13:00 and the UE is located in RAN1, the user plane path 1 is the best user plane path.
- the service actually initiated by the UE on session 1 is also service x, but when the service x is initiated, the UE is not located in RAN1 or the time of initiating service x is not at 12:00-13:00, then the user plane path 1 may not be a service
- the first network element after the first network element selects the user plane path for the session of the UE according to the actual service initiated by the UE, the user plane path changes due to the service behavior data of the UE (such as the network location and time of the UE) If the original user plane path no longer meets the service experience requirements (for example, it is no longer the best user plane path), the first network element should reselect the user plane path based on the UE's new service experience analysis data. Specifically, refer to the method for selecting the user plane path in this application to reselect the user plane path.
- the best user plane path selected by the first network element for the UE’s session is user plane path 1 (including UPF1 and media plane server 1), and subsequent movement of the UE causes the user plane path 1 to no longer be
- the first network element can re-select a best user plane path for service x based on the current location of the UE, such as user plane path 2 (including UPF1 and media plane server 2).
- the first network element is SMF/PCF
- SMF/PCF selects UPF and media plane server
- SMF/PCF needs to send the DNAI corresponding to the selected media plane server to AF so that AF can determine according to DNAI
- the media plane server of the business For example, it may be sent to the AF before the service is initiated, or it may be sent to the AF when the service is initiated.
- the applicable conditions of the DNAI need to be sent at the same time, such as indicating the identification information of the service corresponding to the DNAI, the identification information of the UE, time, location, etc., so that the AF can be based on the
- the applicable conditions are DNAI, and the DNAI and the UPF selected by SMF/PCF can be matched as the best user plane path.
- the above method is described by using SMF/PCF to select a user plane path (including UPF and media plane server) for the UE session as an example.
- the SMF/PCF may also select the UPF in the user plane path for the session of the UE, and the AF selects the media plane server in the user plane path for the session of the UE.
- NWDAF can generate the corresponding relationship between UPF and business experience analysis data according to the above table 3 (see Table 3-1 below) And the correspondence between DNAI and business experience analysis data (see Table 3-2 below).
- location 1 refers to the external geographic location corresponding to RAN1
- location2 refers to the external geographic location corresponding to RAN2.
- the SMF/PCF can obtain the user plane path and corresponding service experience analysis data as shown in Table 4 above or Table 4-1 below.
- the AF can obtain the user plane path and corresponding service experience analysis data shown in Table 4-2.
- the above location1 refers to the external geographic location corresponding to RAN1.
- NWDAF can also be based on Table 2 and Table 3 obtains the correspondence between UE, service type, user plane path, and service experience analysis data as shown in Table 3-3 below. Specifically, NWDAF can first analyze or predict the type of service initiated by the UE under certain filtering conditions (time, location) according to Table 2, and then NWDAF obtains the correspondence between the user plane path and the service experience analysis data of the service type according to Table 3. Combining the two, NWDAF can obtain Table 3-3.
- the AF related to a certain service can obtain the UE granular user plane path and corresponding service experience analysis data as shown in Table 4-3 from the NWDAF.
- the user plane path (including UPF and media plane server) is selected by SMF/PCF, that is, both UPF and media plane server in the user plane path are selected by SMF/PCF.
- the method includes the following steps:
- NWDAF collects data and performs training based on the collected data to analyze and obtain the service behavior model of the UE and the service experience model of the service.
- Step 301a the SMF/PCF subscribes/requests the service behavior analysis data of the UE from the NWDAF.
- Step 301b NWDAF sends the UE's service behavior analysis data to the SMF/PCF.
- Step 302a The SMF/PCF subscribes/requests the service experience analysis data corresponding to at least one user plane path from the NWDAF.
- Step 302b NWDAF sends service experience analysis data corresponding to at least one user plane path to SMF/PCF.
- step 302a and step 302b can also be performed before step 301a and step 301b, or the above step 301a and step 302a are combined into one step, and step 301b and step 302b are combined into one step.
- This application is not limited.
- Step 303 The UE initiates a PDU session establishment request in the network, and the SMF/PCF analyzes the data according to the service behavior of the UE and predicts at least one service type that the UE will initiate.
- the UE After a specific UE completes registration in the network, the UE initiates a session (PDU session in 5G) request to SMF according to its own needs through AMF, and SMF/PCF queries its stored UE’s business behavior analysis data or sends a request to NWDAF (real-time ) Request the service behavior analysis data of the UE, and the SMF/PCF predicts at least one service type of the UE based on the UE service behavior analysis data.
- the at least one service type refers to the service type initiated by the UE in the PDU session with high probability In other words, it is the type of service that is likely to occur at a certain point in the future after the PDU session is established.
- SMF/PCF can also select at least one of them based on internal algorithms (such as priority between services, importance, service requirements, occupied network resources, etc.)
- Business type for example, select the business type corresponding to the two businesses with the highest priority.
- Step 304 The SMF/PCF selects the best user plane path for the PDU session of the UE, and the user plane path can make the service experience of the at least one service the best (optimal).
- SMF selects a user plane that can optimize the service experience of the service based on the service experience analysis data corresponding to the service type corresponding to at least one user plane path that has been obtained in step 302b. path.
- the selection of the user plane path refers to the selection of other user plane nodes, such as the selection of UPF and media plane server.
- SMF/PCF determines only one service type in step 303, SMF/PCF will select the best user plane path according to the service type as the user plane path of the entire PDU session For example, the UPF in the user plane path is the UPF corresponding to the entire PDU session.
- SMF/PCF determines multiple service types in step 303, then SMF/PCF in this step may select multiple different user plane paths for the multiple service types, for example, simultaneously Two UPFs are selected. At this time, SMF/PCF can establish a multi-branch PDU session, such as the multi-homing PDU session described in the standard, or insert an uplink classifier (ULCL) UPF.
- ULCL uplink classifier
- Step 305 When the specific service A is initiated, the SMF/PCF judges whether the currently selected user plane path is the best for the service A according to the obtained at least one user plane path corresponding to the service experience analysis data of the service A .
- the currently selected user plane path is the best for service A, keep at least one currently acquired user plane path; if the currently selected user plane path is not the best for service A, it is this service A Reselect an optimal user plane path (that is, trigger a user plane path switch).
- SMF/PCF can decide to trigger user plane path conversion for service A according to internal algorithms or configuration strategies (such as service priority, importance, service requirements, occupied network resources, etc.). For example, if SMF/PCF judges that service A is an important MEC service, which requires stringent delay, then SMF/PCF can trigger a user plane path switch. Of course, if the service priority of service A is low or the importance is low, the SMF/PCF may also decide not to trigger the user plane path switch for this service A.
- the user plane path conversion can replace the original user plane path with a new user plane path, and the SMF/PCF needs to trigger the UPF relocation process.
- the user plane path conversion can retain the original user plane path and insert a new user plane path.
- SMF inserts ULCL or branching point to form a multi-branch PDU session. See the third generation for details.
- 3GPP 3rd generation partnership project
- This step 305 is optional.
- This step 306 is optional.
- SMF/PCF sends instruction information (or notification information) to the AF, which carries DNAI, and can also carry the UE ID and the corresponding time and location information, so that the AF can know in advance the information initiated by the UE at that time and place.
- the address of the best media plane server for the service (corresponding to DNAI), so that when the UE subsequently triggers the service at the time and place, the AF can directly feed back the address of the best media plane server to the UE.
- This processing method enables the selection of UPF to be used in conjunction with DNAI to achieve the goal of the best user-plane path. Otherwise, even if SMF selects the best UPF, if DNAI is not a matching DNAI, the user-plane path cannot be considered the best.
- a method for selecting user plane paths for different services of the UE based on the service behavior analysis data and service experience analysis data of the UE is provided.
- the user plane path selected by this method can maximize the UE to get the best service experience, and avoid subsequent reselection (or exchange) of the user plane path to the greatest possible extent.
- NWDAF predicts the UE's service behavior analysis data based on the UE's service behavior data, and sends the UE's service behavior analysis data to the SMF/PCF.
- NWDAF obtains the service experience model based on the historical data analysis of the service, thus obtains the service experience analysis data, and sends it to SMF/PCF.
- SMF/PCF correlates service experience analysis data corresponding to different user plane paths.
- the SMF/PCF selects the UPF in the user plane path
- the AF selects the media plane server in the user plane path.
- the method includes the following steps:
- Step 400 is the same as step 300 above, and reference may be made to the foregoing description.
- Step 401a the SMF/PCF subscribes/requests the service behavior analysis data of the UE from the NWDAF.
- Step 401b NWDAF sends the UE's service behavior analysis data to the SMF/PCF.
- Step 401a to step 401b are the same as the above step 301a to step 301b, please refer to the foregoing description.
- Step 402a The SMF/PCF subscribes/requests the service experience analysis data corresponding to at least one user plane path from the NWDAF.
- the method for SMF/PCF to subscribe/request the service experience analysis data corresponding to at least one user plane path from NWDAF is similar to the method in step 302a above, but the difference is that at least one user plane path in step 402a may include UPF and media
- the plane server may also include only the UPF, and at least one user plane path in step 302a includes the UPF and the media plane server.
- Step 402b NWDAF sends service experience analysis data corresponding to at least one user plane path to the SMF/PCF.
- the method for NWDAF to send the service experience analysis data corresponding to at least one user plane path to SMF/PCF is similar to the method in step 302b above, but the difference is that at least one user plane path in step 402b may include UPF and media plane server , It may only include UPF, and at least one user plane path in step 302b includes UPF and media plane server.
- the SMF/PCF can obtain the user plane path and the corresponding service experience analysis data shown in the foregoing Table 4 or Table 4-1.
- the method for AF to subscribe/request the service experience analysis data corresponding to at least one user plane path from NWDAF is similar to the method in step 302a above, but the difference is that at least one user plane path in step 403a includes a media plane server, and step At least one user plane path in 302a includes UPF and media plane server.
- Step 403b NWDAF sends service experience analysis data corresponding to at least one user plane path to the AF.
- the method for NWDAF to send the service experience analysis data corresponding to at least one user plane path to the AF is similar to the method in step 302b above, but the difference is that at least one user plane path in step 403b includes a media plane server, while in step 302b At least one user plane path includes UPF and media plane server.
- the AF can obtain the user plane path and the corresponding service experience analysis data shown in the above Table 4-2.
- the subscription/request method in this design method is similar to the previous method in step 403a, but the difference is that the subscription/request in the previous method in step 403a corresponds to at least one user plane path distinguished by business granularity as shown in Table 4-2
- the service experience analysis data is not at UE granularity.
- AF can obtain UE granular user plane paths and corresponding service experience analysis data as shown in Table 4-3 below.
- step 401a-step 401b can be performed first, then step 402a-step 402b, and finally step 403a-step 403b.
- step 402a-step 402b may be executed first, then step 401a-step 401b, and finally step 403a-step 403b may be executed.
- step 402a-step 402b can be performed first, then step 403a-step 403b, and finally step 401a-step 401b.
- step 403a-step 403b may be performed first, then step 401a-step 401b, and finally step 403a-step 403b.
- step 401a and step 402a are combined into one step to execute
- step 401b and step 402b are combined into one step to execute. and many more.
- step 404 the UE initiates a PDU session establishment request in the network, and the SMF/PCF analyzes the data according to the service behavior of the UE and predicts at least one service type that the UE will initiate.
- This step 404 is the same as the above step 303, and the foregoing description can be referred to.
- Step 405 The SMF/PCF selects the best UPF for the PDU session of the UE, and the UPF can make the service experience of the at least one service the best (best).
- This step 405 is similar to the above step 304, but the difference is that the above step 304 selects the best user plane path (including the UPF and the media plane server), and the step 405 only selects the best UPF.
- the AF when the AF is initiated for a specific service, it directly selects the best media plane server for the service as an example.
- the service type of the service to be initiated on the session can also be predicted by the AF, for example, service A is predicted to be initiated, and then the best media plane server is selected for the service A.
- the AF can also perform steps similar to the above steps 401a and 401b, that is, the AF subscribes/requests the service behavior analysis data of the UE from the NWDAF, and then the NWDAF sends the SMF/PCF
- the specific implementation process can refer to the relevant description of the above step 401a to step 401b.
- the AF may also perform a step similar to the above step 404, that is, the AF selects the best media plane server for the PDU session of the UE.
- the specific implementation method refer to the related description in the embodiment of FIG. 2.
- SMF/PCF can decide to trigger user plane path conversion for service A according to internal algorithms or configuration strategies (such as service priority, importance, service requirements, occupied network resources, etc.). For example, if SMF/PCF judges that service A is an important MEC service and has strict requirements for delay, SMF/PCF can trigger the user plane path switch. Of course, if the service priority of service A is low or the importance is low, the SMF/PCF may also decide not to trigger the user plane path switch for this service A.
- NWDAF predicts the UE's business behavior analysis data based on the UE's business behavior data, and sends the UE's behavior analysis data to the SMF/PCF.
- NWDAF obtains the service experience model based on the historical data analysis of the service, thereby obtaining service experience analysis data. Accordingly, NWDAF associates service experience analysis data corresponding to different user plane paths (UPF ID+DNAI).
- NWDAF sends service experience analysis data corresponding to different UPFs to SMF/PCF according to the service experience analysis data corresponding to different user plane paths (UPF ID+DNAI), and sends service experience analysis data corresponding to different media plane servers to AF.
- SMF/PCF determines the service type based on the UE’s service behavior analysis data and service behavior data, and selects the best or meets the preset service requirements based on the service type and the service experience analysis data of the service type corresponding to different UPFs .
- the AF selects a media plane server that is the best or meets the preset service requirements. In this way, the best user plane path is selected for the UE session.
- the apparatus 500 may exist in the form of software or hardware.
- the apparatus 500 may include: a processing unit 502 and a communication unit 503.
- the communication unit 503 may include a receiving unit and a sending unit.
- the processing unit 502 is used to control and manage the actions of the device 500.
- the communication unit 503 is used to support communication between the device 500 and other network entities.
- the device 500 may further include a storage unit 501 for storing program codes and data of the device 500.
- the processing unit 502 may be a processor or a controller, for example, a general-purpose central processing unit (central processing unit, CPU), a general-purpose processor, a digital signal processing (digital signal processing, DSP), and an application specific integrated circuit (application specific integrated circuit). circuits, ASIC), field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application.
- the processor may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
- the storage unit 501 may be a memory.
- the communication unit 503 is an interface circuit of the device for receiving signals from other devices.
- the communication unit 503 is an interface circuit for the chip to receive signals from other chips or devices, or an interface circuit for the chip to send signals to other chips or devices.
- the apparatus 500 may be the first network element (such as a session management network element, a policy control network element, or a service server) in any of the foregoing embodiments, and may also be a chip used for the first network element.
- the processing unit 502 may be a processor, for example, and the communication unit 503 may be a transceiver, for example.
- the transceiver may include a radio frequency circuit
- the storage unit may be, for example, a memory.
- the processing unit 502 may be, for example, a processor
- the communication unit 503 may be, for example, an input/output interface, a pin, or a circuit.
- the processing unit 502 can execute computer-executable instructions stored in the storage unit.
- the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit located in the first network element.
- the storage unit outside the chip such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), etc.
- the apparatus 500 is a first network element, and a processing unit is configured to determine at least one service type corresponding to the terminal device; and, according to the service experience analysis data corresponding to the at least one service type, The session of the terminal device selects the user plane path.
- the processing unit 502 is configured to obtain service behavior analysis data of the terminal device from a data analysis network element; and, according to the service behavior analysis data of the terminal device, determine the at least one business type.
- the communication unit 503 is configured to send a request message to the data analysis network element, where the request message includes a filtering condition, and the request message is used to request the terminal device to satisfy the filtering Conditional business behavior analysis data; receiving the business behavior analysis data of the terminal device from the data analysis network element, and the business behavior analysis data satisfies the filter condition.
- the filter condition includes time information and/or location information.
- the service behavior analysis data includes at least one of the following: service identification information, service occurrence probability, service duration, service weight factors, location of terminal equipment when the service occurs, and service Time of occurrence.
- the processing unit 502 is specifically configured to select the user plane path for the session of the terminal device when the session is established.
- the processing unit 502 is further configured to obtain the service experience analysis data and the identification information of the user plane path respectively corresponding to the at least one service type.
- the communication unit 503 is configured to send a request message to a data analysis network element, where the request message includes identification information of the at least one service type; and receive the data analysis network element The service experience analysis data and the identification information of the user plane path corresponding to at least one service type respectively.
- the communication unit 503 is configured to send a request message to the data analysis network element, where the request message includes identification information of the at least one service type and filter conditions, and the filter conditions are used to determine Identification information of the user plane path corresponding to the identification information of the at least one service type; receiving the service experience analysis data and identification information of the user plane path corresponding to the at least one service type from the data analysis network element .
- the processing unit 502 is also used to determine that the user plane path cannot satisfy the service initiated by the terminal device on the session after selecting the user plane path for the session of the terminal device And, according to the service experience analysis data corresponding to the initiated service, reselect the user plane path for the initiated service.
- the apparatus 500 is a session management network element or a policy control network element, and the processing unit 502 is configured to select a user plane function in the user plane path for the session of the terminal device Network element.
- the processing unit 502 is configured to select a media plane server in the user plane path for the session of the terminal device.
- the apparatus 500 is a service server, and the processing unit 502 is configured to select a media plane server in the user plane path for the session of the terminal device.
- the device 600 may exist in the form of software or hardware.
- the apparatus 600 may include: a processing unit 602 and a communication unit 603.
- the communication unit 603 may include a receiving unit and a sending unit.
- the processing unit 602 is used to control and manage the actions of the device 600.
- the communication unit 603 is used to support communication between the device 600 and other network entities.
- the device 600 may further include a storage unit 601 for storing program codes and data of the device 600.
- the processing unit 602 may be a processor or a controller, for example, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application.
- the processor may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
- the storage unit 601 may be a memory.
- the communication unit 603 is an interface circuit of the device for receiving signals from other devices. For example, when the device is implemented as a chip, the communication unit 603 is an interface circuit for the chip to receive signals from other chips or devices, or an interface circuit for the chip to send signals to other chips or devices.
- the device 600 may be the data analysis network element in any of the foregoing embodiments, and may also be a chip used for the data analysis network element.
- the processing unit 602 may be, for example, a processor
- the communication unit 603 may be, for example, a transceiver.
- the transceiver may include a radio frequency circuit
- the storage unit may be, for example, a memory.
- the processing unit 602 may be, for example, a processor
- the communication unit 603 may be, for example, an input/output interface, a pin, or a circuit.
- the processing unit 602 can execute computer-executable instructions stored in the storage unit.
- the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit located in the data analysis network element.
- a storage unit outside the chip such as ROM or other types of static storage devices that can store static information and instructions, RAM, etc.
- the device 600 is a data analysis network element, and the processing unit 602 is configured to obtain service experience analysis data corresponding to at least one service type; the communication unit 603 is configured to send the at least one network element to the first network element. Service experience analysis data corresponding to a service type.
- the communication unit 603 is configured to send identification information of the user plane path corresponding to the service experience analysis data to the first network element.
- the communication unit 603 is configured to receive a request message sent by the first network element, where the request message includes identification information of the at least one service type.
- the communication unit 603 is configured to receive a request message sent by the first network element, where the request message includes identification information of the at least one service type and the at least one service type The identification information corresponding to the identification information of the user plane path.
- the communication unit 603 is configured to receive a request message sent by the first network element, where the request message includes identification information and filter conditions of the at least one service type, and the filter conditions The identification information used to determine the user plane path corresponding to the identification information of the at least one service type.
- the processing unit 602 is configured to obtain the service behavior analysis data of the terminal device; the sending unit is configured to send the service behavior analysis data of the terminal device to the first network element.
- the communication unit 603 is configured to receive a request message from the first network element, where the request message includes a filter condition; and the processing unit 602 is configured to obtain the terminal device's The business behavior analysis data of the filter condition.
- the filter condition includes time information and/or location information.
- the service behavior analysis data includes at least one of the following: service identification information, service occurrence probability, service duration, service weight factors, location of terminal equipment when the service occurs, and service Time of occurrence.
- the first network element is a session management network element or a policy control network element
- the identification information of the user plane path includes identification information of the user plane function network element
- the identification information of the user plane path further includes the identification information of the media plane server.
- the first network element is a service server
- the identification information of the user plane path includes identification information of the media plane server.
- the apparatus may be the above-mentioned data analysis network element, or the first network element (such as a session management network element, a policy control network element, or a service server).
- the device 700 includes a processor 702, a communication interface 703, and a memory 701.
- the apparatus 700 may further include a communication line 704.
- the communication interface 703, the processor 702, and the memory 701 may be connected to each other through a communication line 704;
- the communication line 704 may be a peripheral component interconnection standard (peripheral component interconnect, PCI for short) bus or an extended industry standard architecture (extended industry standard architecture) , Referred to as EISA) bus and so on.
- the communication line 704 can be divided into an address bus, a data bus, a control bus, and so on. For ease of presentation, only one thick line is used in FIG. 7, but it does not mean that there is only one bus or one type of bus.
- the processor 702 may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits for controlling the execution of the program of the present application.
- the communication interface 703 uses any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), Wired access network, etc.
- RAN radio access network
- WLAN wireless local area networks
- Wired access network etc.
- the memory 701 can be ROM or other types of static storage devices that can store static information and instructions, RAM or other types of dynamic storage devices that can store information and instructions, or can be electrically erasable programmable read-only memory (electrically erasable programmable read-only memory).
- read-only memory EEPROM
- compact disc read-only memory, CD-ROM
- optical disc storage including compact disc, laser disc, optical disc, digital universal disc, Blu-ray disc, etc.
- magnetic disk A storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
- the memory may exist independently and is connected to the processor through the communication line 704. The memory can also be integrated with the processor.
- the memory 701 is used to store computer-executed instructions for executing the solution of the present application, and the processor 702 controls the execution.
- the processor 702 is configured to execute computer-executable instructions stored in the memory 701, so as to implement the user plane path selection method provided in the foregoing embodiment of the present application.
- the computer-executable instructions in the embodiments of the present application may also be referred to as application program code, which is not specifically limited in the embodiments of the present application.
- the computer program product includes one or more computer instructions.
- the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
- the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
- the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
- the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)), etc.
- the various illustrative logic units and circuits described in the embodiments of this application can be implemented by general-purpose processors, digital signal processors, application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, Discrete gates or transistor logic, discrete hardware components, or any combination of the above are designed to implement or operate the described functions.
- the general-purpose processor may be a microprocessor, and optionally, the general-purpose processor may also be any traditional processor, controller, microcontroller, or state machine.
- the processor can also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration achieve.
- the steps of the method or algorithm described in the embodiments of the present application can be directly embedded in hardware, a software unit executed by a processor, or a combination of the two.
- the software unit can be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other storage medium in the field.
- the storage medium may be connected to the processor, so that the processor can read information from the storage medium, and can store and write information to the storage medium.
- the storage medium may also be integrated into the processor.
- the processor and the storage medium can be arranged in the ASIC.
- These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
- the instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.
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Abstract
Description
Claims (33)
- 一种用户面路径的选择方法,其特征在于,包括:第一网元确定终端设备对应的至少一种业务类型;所述第一网元根据所述至少一种业务类型分别对应的业务体验分析数据,为所述终端设备的会话选择用户面路径。
- 如权利要求1所述的方法,其特征在于,还包括:所述第一网元从数据分析网元获取所述终端设备的业务行为分析数据;所述第一网元确定终端设备对应的至少一种业务类型,包括:所述第一网元根据所述终端设备的业务行为分析数据,确定所述至少一种业务类型。
- 如权利要求2所述的方法,其特征在于,所述第一网元从数据分析网元获取所述终端设备的业务行为分析数据,包括:所述第一网元向所述数据分析网元发送请求消息,所述请求消息包括过滤条件,所述请求消息用于请求所述终端设备的满足所述过滤条件的业务行为分析数据;所述第一网元从所述数据分析网元接收所述终端设备的所述业务行为分析数据,所述业务行为分析数据满足所述过滤条件。
- 如权利要求3所述的方法,其特征在于,所述过滤条件包括时间信息和/位置信息。
- 如权利要求2-4任一所述的方法,其特征在于,所述业务行为分析数据包括以下至少一项:业务的标识信息、业务的发生概率、业务的持续时间、业务的权重因素、业务发生时终端设备的位置、业务发生的时间。
- 如权利要求1-5任一所述的方法,其特征在于,所述第一网元根据所述至少一种业务类型分别对应的业务体验分析数据,为所述终端设备的会话选择用户面路径,包括:所述第一网元为所述终端设备的会话选择一条用户面路径,所述一条用户面路径满足所述至少一种业务类型对应的业务体验要求。
- 如权利要求1-5任一所述的方法,其特征在于,所述第一网元根据所述至少一种业务类型分别对应的业务体验分析数据,为所述终端设备的会话选择用户面路径,包括:所述第一网元为所述终端设备的会话选择多条用户面路径,所述多条用户面路径分别满足所述至少一种业务类型对应的业务体验要求。
- 如权利要求1-7任一所述的方法,其特征在于,所述第一网元为所述终端设备的会话选择用户面路径,包括:在所述会话建立时,所述第一网元为所述终端设备的所述会话选择所述用户面路径。
- 如权利要求1-8任一所述的方法,其特征在于,还包括:所述第一网元获取所述至少一种业务类型分别对应的所述业务体验分析数据和用户面路径的标识信息。
- 如权利要求9所述的方法,其特征在于,所述第一网元获取所述至少一种业务类型分别对应的业务体验分析数据和用户面路径的标识信息,包括:所述第一网元向数据分析网元发送请求消息,所述请求消息包括所述至少一种业务类型的标识信息;所述第一网元从所述数据分析网元接收所述至少一种业务类型分别对应的所述业务 体验分析数据和用户面路径的标识信息。
- 如权利要求9所述的方法,其特征在于,所述第一网元获取所述至少一种业务类型分别对应的业务体验分析数据和用户面路径的标识信息,包括:所述第一网元向数据分析网元发送请求消息,所述请求消息包括所述至少一种业务类型的标识信息和过滤条件,所述过滤条件用于确定所述至少一种业务类型的标识信息对应的用户面路径的标识信息;所述第一网元从所述数据分析网元接收所述至少一种业务类型分别对应的所述业务体验分析数据和用户面路径的标识信息。
- 如权利要求1-11任一所述的方法,其特征在于,所述第一网元为所述终端设备的会话选择用户面路径之后,还包括:所述第一网元确定所述用户面路径不能满足所述终端设备在所述会话上发起的业务的业务体验要求;所述第一网元根据所述发起的业务对应的业务体验分析数据,为所述发起的业务重新选择用户面路径。
- 如权利要求1-12任一所述的方法,其特征在于,所述第一网元为会话管理网元或策略控制网元,所述第一网元为所述终端设备的会话选择用户面路径,包括:所述第一网元为所述终端设备的所述会话选择所述用户面路径中的用户面功能网元。
- 如权利要求13所述的方法,其特征在于,所述第一网元为所述终端设备的会话选择用户面路径,还包括:所述第一网元为所述终端设备的所述会话选择所述用户面路径中的媒体面服务器。
- 如权利要求1-12任一所述的方法,其特征在于,所述第一网元为业务服务器,所述第一网元为所述终端设备的会话选择用户面路径,包括:所述第一网元为所述终端设备的所述会话选择所述用户面路径中的媒体面服务器。
- 一种装置,其特征在于,包括:处理单元,用于确定终端设备对应的至少一种业务类型;以及,根据所述至少一种业务类型分别对应的业务体验分析数据,为所述终端设备的会话选择用户面路径。
- 如权利要求16所述的装置,其特征在于,处理单元,用于从数据分析网元获取所述终端设备的业务行为分析数据;以及,根据所述终端设备的业务行为分析数据,确定所述至少一种业务类型。
- 如权利要求17所述的装置,其特征在于,所述装置还包括通信单元,用于:向所述数据分析网元发送请求消息,所述请求消息包括过滤条件,所述请求消息用于请求所述终端设备的满足所述过滤条件的业务行为分析数据;从所述数据分析网元接收所述终端设备的所述业务行为分析数据,所述业务行为分析数据满足所述过滤条件。
- 如权利要求18所述的装置,其特征在于,所述过滤条件包括时间信息和/位置信息。
- 如权利要求17-19任一所述的装置,其特征在于,所述业务行为分析数据包括以下至少一项:业务的标识信息、业务的发生概率、业务的持续时间、业务的权重因素、业务发生时终端设备的位置、业务发生的时间。
- 如权利要求16-20任一所述的装置,其特征在于,所述处理单元,具体用于为所述终端设备的会话选择一条用户面路径,所述一条用户面路径满足所述至少一种业务类型对应的业务体验要求。
- 如权利要求16-20任一所述的装置,其特征在于,所述处理单元,具体用于为所述终端设备的会话选择多条用户面路径,所述多条用户面路径分别满足所述至少一种业务类型对应的业务体验要求。
- 如权利要求16-22任一所述的装置,其特征在于,所述处理单元,具体用于在所述会话建立时,为所述终端设备的所述会话选择所述用户面路径。
- 如权利要求16-23任一所述的装置,其特征在于,所述处理单元,还用于获取所述至少一种业务类型分别对应的所述业务体验分析数据和用户面路径的标识信息。
- 如权利要求24所述的装置,其特征在于,所述装置还包括通信单元,用于:向数据分析网元发送请求消息,所述请求消息包括所述至少一种业务类型的标识信息;从所述数据分析网元接收所述至少一种业务类型分别对应的所述业务体验分析数据和用户面路径的标识信息。
- 如权利要求24所述的装置,其特征在于,所述装置还包括通信单元,用于:向数据分析网元发送请求消息,所述请求消息包括所述至少一种业务类型的标识信息和过滤条件,所述过滤条件用于确定所述至少一种业务类型的标识信息对应的用户面路径的标识信息;从所述数据分析网元接收所述至少一种业务类型分别对应的所述业务体验分析数据和用户面路径的标识信息。
- 如权利要求16-26任一所述的装置,其特征在于,所述处理单元,还用为所述终端设备的会话选择用户面路径之后,确定所述用户面路径不能满足所述终端设备在所述会话上发起的业务的业务体验要求;以及,根据所述发起的业务对应的业务体验分析数据,为所述发起的业务重新选择用户面路径。
- 如权利要求16-27任一所述的装置,其特征在于,所述装置为会话管理网元或策略控制网元,所述处理单元,具体用于为所述终端设备的所述会话选择所述用户面路径中的用户面功能网元。
- 如权利要求28所述的装置,其特征在于,所述处理单元,还用于为所述终端设备的所述会话选择所述用户面路径中的媒体面服务器。
- 如权利要求16-27任一所述的装置,其特征在于,所述装置为业务服务器,所述处理单元,还用于为所述终端设备的所述会话选择所述用户面路径中的媒体面服务器。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质中存储有指令,当其在计算机上运行时,使得处理器执行如权利要求1-15中任意一项所述的方法。
- 一种芯片,其特征在于,包括:处理单元和与所述处理单元耦合的通信单元,所述处理单元用于运行计算机程序或指令,以使得处理单元执行如权利要求1-15中任意一项所述的方法。
- 一种通信系统,其特征在于,包括用于执行如权利要求1-15中任意一项所述的方法的第一网元以及数据分析网元。
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