CN114158076B - Policy generation method, device and storage medium - Google Patents
Policy generation method, device and storage medium Download PDFInfo
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- CN114158076B CN114158076B CN202111525079.6A CN202111525079A CN114158076B CN 114158076 B CN114158076 B CN 114158076B CN 202111525079 A CN202111525079 A CN 202111525079A CN 114158076 B CN114158076 B CN 114158076B
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Abstract
The invention provides a policy generation method, policy generation equipment and a policy generation storage medium, relates to the technical field of communication, and is used for guaranteeing service quality of services in an access network. The method comprises the following steps: the first NWDAF device sends a first request message to the UPF device; the first request message is used for requesting to acquire current service data of the target service; the target service is a service in MEC equipment; the method comprises the steps that first NWDAF equipment receives current service data of a target service sent by UPF equipment; the first NWDAF device sends a second request message to the base station device; the second request message is used for requesting to acquire the current network resource information of the wireless access network; the method comprises the steps that first NWDAF equipment receives current network resource information sent by base station equipment; the first NWDAF equipment generates an optimization strategy according to the current network resource information, the current service data and the pre-trained strategy model; the optimization strategy is used to optimize the target traffic.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a policy generation method, device, and storage medium.
Background
A fifth Generation mobile communication (5 th-Generation, 5G) system introduces a network data analysis function (network data analytics function, NWDAF) in the core network. NWDAF is used as a bearing entity for customized data collection and intelligent analysis, and can collect data from Network Functions (NF), application functions (application function, AF) and operation maintenance management (operation administration and maintenance, OAM) of a 5G core network (5 GC), and also has intelligent analysis capability (such as calculation, training, reasoning, prediction, etc.), and output analysis results to NF or AF or OAM for NF, AF or OAM decision-making.
However, with the application of 5G in multi-level internet of things and vertical industry (private network), in order to guarantee business experience in the vertical industry, an edge computing (mobile edge computing, MEC) technology is introduced. The MEC device is typically located in the radio access network so that some traffic can be handled directly in the radio access network. At this time, the NWDAF located in the large area core network cannot acquire service data in the MEC device, so an effective policy cannot be generated to ensure the service quality of these services.
Disclosure of Invention
The embodiment of the invention provides a policy generation method, policy generation equipment and a storage medium, which are used for guaranteeing the service quality of a service in an access network.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical scheme:
in a first aspect, a policy generation method is provided and applied to a radio access network, where the radio access network includes a first network data analysis function NWDAF device, a user plane function UPF device, an edge service MEC device, and a base station device, and the first NWDAF device is connected to the UPF device and the base station device, and the UPF device is connected to the MEC device; the method comprises the following steps: the first NWDAF device sends a first request message to the UPF device; the first request message is used for requesting to acquire current service data of the target service; the target service is a service in MEC equipment; the method comprises the steps that first NWDAF equipment receives current service data of a target service sent by UPF equipment; the first NWDAF device sends a second request message to the base station device; the second request message is used for requesting to acquire the current network resource information of the wireless access network; the method comprises the steps that first NWDAF equipment receives current network resource information sent by base station equipment; the first NWDAF equipment generates an optimization strategy according to the current network resource information, the current service data and the pre-trained strategy model; the optimization strategy is used to optimize the target traffic.
Optionally, the optimization policies include a first optimization policy and a second optimization policy, the first optimization policy is used for adjusting network resources of the radio access network, the second optimization policy is used for adjusting network resources of the core network, and the method further includes: the first optimization strategy is sent to the base station equipment, and/or the second optimization strategy is sent to the PCF equipment of the strategy control function of the core network.
Optionally, the method further comprises: the first NWDAF device sends a registration request to the second NWDAF device; the registration request is for requesting communication to be established between the first NWDAF device and the two NWDAF devices.
Optionally, the first NWDAF device sends a first request message to the UPF device, including: responding to an indication message sent by a second NWDAF device, and sending a first request message to UPF equipment; the indication message is used for indicating that the target service of the first NWDAF equipment is started; the first NWDAF device sends a second request message to the base station device, including: and transmitting a second request message to the base station device in response to the indication message.
Optionally, the method further comprises: the method comprises the steps that first NWDAF equipment acquires service information of a plurality of services from MEC equipment; the plurality of services comprise target services, and the service information comprises service identifiers and service requirements; the first NWDAF device sends a plurality of service information to the second NWDAF device, so that the second NWDAF device sends an indication message to the first NWDAF device after the target service starts.
Optionally, the method further comprises: the method comprises the steps that first NWDAF equipment acquires service requirements of target service and a plurality of sample data; each sample data comprises a historical business data, a historical network resource information and an optimization strategy; the first NWDAF device trains to obtain a policy model based on the service requirements of the target service and a plurality of sample data.
In a second aspect, a first network data analysis function NWDAF device is provided and applied to a radio access network, where the radio access network includes a first network data analysis function NWDAF device, a user plane function UPF device, an edge service MEC device, and a base station device, the first NWDAF device is connected to the UPF device and the base station device, and the UPF device is connected to the MEC device; the first NWDAF device comprises a transmitting unit, a receiving unit and a generating unit; a sending unit, configured to send a first request message to a UPF device; the first request message is used for requesting to acquire current service data of the target service; the target service is a service in MEC equipment; a receiving unit, configured to receive current service data of a target service sent by a UPF device; a sending unit, configured to send a second request message to the base station device; the second request message is used for requesting to acquire the current network resource information of the wireless access network; a receiving unit, configured to receive current network resource information sent by a base station device; the generating unit is used for generating an optimization strategy according to the current network resource information, the current service data and the pre-trained strategy model; the optimization strategy is used to optimize the target traffic.
Optionally, the optimization policy includes a first optimization policy and a second optimization policy, the first optimization policy is used for adjusting network resources of the radio access network, the second optimization policy is used for adjusting network resources of the core network, and the sending unit is further configured to: the first optimization strategy is sent to the base station equipment, and/or the second optimization strategy is sent to the PCF equipment of the strategy control function of the core network.
Optionally, the sending unit is further configured to: sending a registration request to a second NWDAF device; the registration request is for requesting communication to be established between the first NWDAF device and the two NWDAF devices.
Optionally, the sending unit is specifically configured to: responding to an indication message sent by a second NWDAF device, and sending a first request message to UPF equipment; the indication message is used for indicating that the target service of the first NWDAF equipment is started; and transmitting a second request message to the base station device in response to the indication message.
Optionally, the first NWDAF device further includes an obtaining unit; an acquiring unit, configured to acquire service information of a plurality of services from the MEC device; the plurality of services comprise target services, and the service information comprises service identifiers and service requirements; and the sending unit is also used for sending the plurality of service information to the second NWDAF device so that the second NWDAF device sends an indication message to the first NWDAF device after the target service starts.
Optionally, the acquiring unit is further configured to acquire a service requirement of the target service and a plurality of sample data; each sample data comprises a historical business data, a historical network resource information and an optimization strategy; the first NWDAF device further comprises a training unit, wherein the training unit is used for training to obtain a policy model based on the service requirement of the target service and the plurality of sample data.
In a third aspect, a network data analysis function NWDAF device is provided, comprising: a processor, a memory for storing instructions executable by the processor; wherein the processor is configured to execute instructions to implement the policy generation method of the first aspect described above.
In a fourth aspect, there is provided a computer readable storage medium comprising instructions which, when executed by a processor, cause the processor to perform the policy generation method of the first aspect described above.
The technical scheme provided by the invention has at least the following beneficial effects: the invention sets the first NWDAF in the wireless access network, the first NWDAF device in the wireless access network is connected with UPF device and base station device in the wireless access network, UPF device is connected with MEC device, compared with the prior art that sets the NWDAF in the core network, the invention makes the first NWDAF device send the first request message to UPF device to request to obtain the current service data of the target service in MEC device; the first NWDAF device also sends a second request message to the base station device to request to acquire current network resource information of the radio access network. Correspondingly, the first NWDAF device receives current service data of the target service sent by the UPF device and current network resource information sent by the base station device; and finally, the first NWDAF equipment generates an optimization strategy for optimizing the target service according to the current network resource information, the current service data and the pre-trained strategy model so as to ensure the service quality of the service in the MEC equipment.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a 5G system architecture according to an embodiment of the present invention;
fig. 2 is a schematic system structure diagram of a 5G communication system in the vertical industry according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a communication system according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of a policy generation method according to an embodiment of the present invention;
fig. 5 is a second schematic flow chart of a policy generation method according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a first NWDAF device according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a first NWDAF device structure according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
It should be noted that, in the embodiment of the present invention, "english: of", "corresponding" and "corresponding" may sometimes be used in combination, and it should be noted that the meaning to be expressed is consistent when the distinction is not emphasized.
In order to clearly describe the technical solution of the embodiments of the present invention, in the embodiments of the present invention, the terms "first", "second", etc. are used to distinguish the same item or similar items having substantially the same function and effect, and those skilled in the art will understand that the terms "first", "second", etc. are not limited in number and execution order.
The related art relating to the embodiment of the present invention will be described below.
The 5G system introduces NWDAF devices in the core network. As shown in fig. 1, an embodiment of the present invention provides a schematic diagram of a 5G system architecture, which shows the location of NWDAF devices in an existing 5G system. Among other things, one of the main uses of NWDAF devices is to provide service level agreement (service level agreement, SLA) guarantees for services in 5G systems. Specifically, the NWDAF device may perform data interaction with each network element in the core network through the bus, so as to collect network data of each network element in the core network, and feed back an analysis result to each network element in the core network. For example, when the user experience is below an SLA, the NWDAF device will generate a corresponding SLA promotion policy.
However, with the application of 5G in multi-level internet of things and vertical industry (private network), in order to guarantee business experience in the vertical industry, an edge computing (mobile edge computing, MEC) technology is introduced. As shown in fig. 2, an embodiment of the present invention provides a system architecture diagram of a 5G communication system in a vertical industry, where MEC devices and user plane function (user plane function, UPF) devices are located in a radio access network, so that some services can be directly handled in the radio access network. At this time, the NWDAF located in the large area core network cannot acquire service data in the MEC device, so an effective policy cannot be generated to ensure the service quality of these services.
The policy generation method provided by the embodiment of the invention can be applied to a communication system of a wireless network, and the communication system is applied to a wireless access network. Fig. 3 shows a schematic diagram of a structure of the communication system. As shown in fig. 3, the communication system 10 includes a first NWDWF device 11, a UPF device 12, a MEC device 13, and a base station device 14. The first NWDAF11 device is connected to the UPF device 12 and the base station device 14, and the UPF device 12 is connected to the MEC device 13.
The UPF device 12 is configured to route the target service to the MEC device 13 and record service data of the target service.
The first NWDAF device 11 is configured to send a first request message to the UPF device 12; the first NWDAF device 11 is further configured to receive current service data of the target service sent by the UPF device 12.
The first NWDAF device 11 is configured to send a second request message to the base station device 14; the first NWDAF device 11 is further configured to receive current network resource information sent by the base station device.
The first NWDAF device 11 is further configured to generate an optimization policy according to the current network resource information, the current service data, and the pre-trained policy model.
The policy generation method provided by the embodiment of the invention is specifically described below with reference to the accompanying drawings.
As shown in fig. 4, the policy generating method provided by the embodiment of the present invention includes the following steps S201 to S205:
s201, the first NWDAF device sends a first request message to the UPF device.
The first request message is used for requesting to acquire current service data of the target service; the target service is a service in the MEC device.
The first NWDAF device and the UPF device communicate through a service interface.
As a possible implementation manner, after the target service starts, the first NWDAF device sends a first request message to the UPF device through the service interface to request to obtain current service data of the target service.
The first request message includes an identification of the target service and the requested service data.
The service data to be requested may be set in advance in the first NWDAF device by the operation and maintenance personnel; for example, the traffic data may be one or more of transmission rate, delay, jitter, positioning, and period; the service data may also include specific data of the target service, such as service data of a real-time mobile cart of the factory, which is not limited by the embodiment of the present invention.
S202, the first NWDAF device receives current service data of a target service sent by the UPF device.
As a possible implementation manner, after the first NWDAF device sends the first request message to the UPF device, the UPF device sends current service data of the target service to the first NWDAF device through the service interface. Correspondingly, the first NWDAF device receives the current service data of the target service sent by the UPF device through the server interface.
S203, the first NWDAF device sends a second request message to the base station device.
The second request message is used for requesting to acquire current network resource information of the wireless access network.
It should be noted that, the first NWDAF device and the base station device communicate through an enriched information (enrichment information interface, EI) interface of the intelligent control platform.
As a possible implementation manner, after the target service starts, the first NWDAF device sends a second request message to the base station device through the EI interface to request to acquire current network resource information of the radio access network.
The second request message includes network resource information to be requested. The network resource information to be requested can be preset in the first NWDAF device by an operation and maintenance personnel; for example, the network resource information may be a current radio side data channel schedulable physical Resource Block (RB).
S204, the first NWDAF device receives the current network resource information sent by the base station device.
As a possible implementation manner, after the first NWDAF device sends the second request message to the base station device, the base station device sends the current network resource information to the first NWDAF device through the EI interface. Correspondingly, the first NWDAF device receives the current network resource information sent by the base station device through the EI interface.
S205, the first NWDAF device generates an optimization strategy according to the current network resource information, the current service data and the pre-trained strategy model.
Wherein the optimization strategy is used for optimizing the target service.
As a possible implementation manner, the first NWDAF device inputs the current network resource information and the current service data into a pre-trained policy model to generate an optimization policy.
In one design, the optimization policies include a first optimization policy and a second optimization policy in order to be able to optimize the target traffic.
The first optimization strategy is used for adjusting network resources of the wireless access network, and the second optimization strategy is used for adjusting network resources of the core network.
Optionally, as shown in fig. 5, the policy generating method provided in the embodiment of the present invention further includes S301 described below.
S301, the first NWDAF device sends a first optimization strategy to the base station device.
Illustratively, the first NWDAF device sends a first optimization policy to the base station device, so that the base station device adjusts the uplink or downlink subframe configuration of the target service, or makes the base station device reprogram RB resource scheduling and the like.
Optionally, as shown in fig. 5, the policy generating method provided in the embodiment of the present invention further includes S302 described below.
S302, the first NWDAF device sends a second optimization strategy to a strategy control function PCF device of the core network.
It should be noted that, the communication system 10 in the embodiment of the present invention further includes a core network, where a policy control function (policy control function, PCF) device is included.
Illustratively, the first NWDAF device sends a second optimization policy to the PCF device of the core network to cause the PCF device of the core network to promote a quality of service (quality of service, QOS) level of the target service.
In one design, in order to enable the first NWDAF to communicate with the second NWDAF, as shown in fig. 5, the policy generating method provided by the embodiment of the present invention further includes the following S401.
S401, the first NWDAF device sends a registration request to the second NWDAF device.
Wherein the registration request is for requesting communication to be established between the first NWDAF device and the two NWDAF devices.
It should be noted that the second NWDAF device is an upper device of the first NWDAF device, and the second NWDAF device is disposed in the core network. The first NWDAF device and the second NWDAF device communicate through a server interface.
As one possible implementation, the first NWDAF device sends a registration request to the second NWDAF device through the servitization interface to establish communication with the second NWDAF device.
In one design, in order to send the first request message to the UPF device, as shown in fig. 5, S201 provided in the embodiment of the present invention specifically includes S2011 described below.
S2011, the first NWDAF device sends a first request message to the UPF device in response to the indication message sent by the second NWDAF device.
The indication message is used for indicating that the target service of the first NWDAF device is started.
As a possible implementation manner, the first NWDAF device subscribes to the target service in advance in a second NWDAF device located in the core network. After the target service is started, the first NWDAF device receives the indication message sent by the second NWDAF device and then sends a first request message to the UPF device.
Similarly, S203 provided in the embodiment of the present invention specifically includes the following S2031.
S2031, the first NWDAF device sends a second request message to the base station device in response to the indication message.
In one design, in order to enable the first NWDAF to send the indication message to the second NWDAF device, as shown in fig. 5, the policy generating method provided by the embodiment of the present invention further includes the following S501.
S501, the first NWDAF device obtains service information of a plurality of services from the MEC device.
The plurality of services comprise target services, and the service information comprises service identifiers and service requirements.
The first NWDAF device and the MEC device are connected through an application program interface (application programming interface, API).
As a possible implementation manner, before the target service starts, the first NWDAF device obtains service identifiers of a plurality of services and service requirements under the corresponding identifiers from the MEC device through the API interface.
The specifically acquired service requirements are preset in the first NWDAF device by the operation and maintenance personnel. For example, the traffic demands include transmission rate requirements, latency requirements, jitter requirements, etc. of the traffic.
S502, the first NWDAF device sends a plurality of service information to the second NWDAF device, so that the second NWDAF device sends an indication message to the first NWDAF device after the target service starts.
As a possible implementation manner, after the first NWDAF device obtains service information of a plurality of services from the MEC device, the first NWDAF device forwards the obtained service information to a second NWDAF device located in the core network, so that the second NWDAF device sends an indication message to the first NWDAF device after the target service starts.
In one design, in order to train to obtain the policy model, the policy generation method provided by the embodiment of the invention further includes the following steps S601-S602.
S601, the first NWDAF device obtains a service requirement of the target service and a plurality of sample data.
Wherein each sample data includes a historical business data, a historical network resource information and an optimization strategy.
As a possible implementation manner, the first NWDAF device obtains the service requirement of the target service from the MEC device, and obtains a plurality of sample data from a preset sample library.
It should be noted that the sample library is created in advance in the first NWDAF device by the operation and maintenance personnel.
S602, the first NWDAF device trains and obtains a strategy model based on the service requirement of the target service and a plurality of sample data.
As a possible implementation manner, the first NWDAF device trains the initial policy model by taking the historical service data, the historical network resource information and the service requirement of the target service in each sample data as features and taking the optimization policy in each sample data as a label, so as to obtain the policy model.
It should be noted that the initial policy model is set in advance in the first NWDAF device by the operator.
The specific implementation manner of training to obtain the detection model in this step may refer to the description in the prior art, and will not be described herein.
The technical scheme provided by the embodiment at least brings the following beneficial effects: the invention sets the first NWDAF in the wireless access network, the first NWDAF device in the wireless access network is connected with UPF device and base station device in the wireless access network, UPF device is connected with MEC device, compared with the prior art that sets the NWDAF in the core network, the invention makes the first NWDAF device send the first request message to UPF device to request to obtain the current service data of the target service in MEC device; the first NWDAF device also sends a second request message to the base station device to request to acquire current network resource information of the radio access network. Correspondingly, the first NWDAF device receives current service data of the target service sent by the UPF device and current network resource information sent by the base station device; and finally, the first NWDAF equipment generates an optimization strategy for optimizing the target service according to the current network resource information, the current service data and the pre-trained strategy model so as to ensure the service quality of the service in the MEC equipment.
The foregoing embodiments mainly describe the solutions provided by the embodiments of the present invention from the perspective of the apparatus (device). It will be appreciated that, in order to implement the above-mentioned method, the apparatus or device includes hardware structures and/or software modules corresponding to each of the method flows, and these hardware structures and/or software modules corresponding to each of the method flows may constitute a material information determining apparatus. Those of skill in the art will readily appreciate that the various illustrative algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The embodiment of the invention can divide the functional modules of the device or the equipment according to the method example, for example, the device or the equipment can divide each functional module corresponding to each function, or two or more functions can be integrated in one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present invention, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.
Fig. 6 shows a possible structural diagram of a first NWDAF device in case of dividing the respective functional modules with corresponding respective functions. As shown in fig. 6, the detection apparatus 70 provided in the embodiment of the present invention includes a transmitting unit 701, a receiving unit 702, and a generating unit 703.
A sending unit 701, configured to send a first request message to a UPF device; the first request message is used for requesting to acquire current service data of the target service; the target service is a service in MEC equipment; for example, as shown in fig. 4, the transmission unit 701 may be used to perform S201.
A receiving unit 702, configured to receive current service data of a target service sent by a UPF device; for example, as shown in fig. 4, the receiving unit 702 may be used to perform S202.
A sending unit 701, configured to send a second request message to the base station device; the second request message is used for requesting to acquire the current network resource information of the wireless access network; for example, as shown in fig. 4, the transmission unit 701 may be used to perform S203.
A receiving unit 702, configured to receive current network resource information sent by a base station device; for example, as shown in fig. 4, the receiving unit 702 may be used to perform S204.
A generating unit 703, configured to generate an optimization policy according to the current network resource information, the current service data, and the pre-trained policy model; the optimization strategy is used to optimize the target traffic. For example, as shown in fig. 4, the generation unit 703 may be used to perform S205.
Optionally, the optimization policies include a first optimization policy and a second optimization policy, where the first optimization policy is used to adjust network resources of the radio access network, the second optimization policy is used to adjust network resources of the core network, and the sending unit 701 is further configured to: the first optimization strategy is sent to the base station equipment, and/or the second optimization strategy is sent to the PCF equipment of the strategy control function of the core network.
Optionally, the sending unit 701 is further configured to: sending a registration request to a second NWDAF device; the registration request is for requesting communication to be established between the first NWDAF device and the two NWDAF devices.
Optionally, the sending unit 701 is specifically configured to: responding to an indication message sent by a second NWDAF device, and sending a first request message to UPF equipment; the indication message is used for indicating that the target service of the first NWDAF equipment is started; and transmitting a second request message to the base station device in response to the indication message.
Optionally, the first NWDAF device 70 further comprises an acquisition unit 704; an acquiring unit 704, configured to acquire service information of a plurality of services from the MEC device; the plurality of services includes a target service, and the service information includes a service identification and a service requirement.
Optionally, the sending unit 701 is further configured to send a plurality of service information to the second NWDAF device, so that the second NWDAF device sends an indication message to the first NWDAF device after the target service starts.
Optionally, the acquiring unit 704 is further configured to acquire a service requirement of the target service and a plurality of sample data; each sample data includes a historical business data, a historical network resource information, and an optimization strategy.
Optionally, the first NWDAF device 70 further includes a training unit 705, where the training unit 705 is configured to train to obtain a policy model based on the service requirement of the target service and the multiple sample data.
The specific manner and corresponding beneficial effects of the operations performed by the respective modules in the apparatus and device in the foregoing embodiments are described in detail in the foregoing embodiments of the method for determining material information, and will not be described herein again.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
Fig. 7 is a schematic structural diagram of an NWDAF device provided by the present invention. As shown in fig. 7, the NWDAF device 80 may include at least one processor 801 and a memory 803 for storing processor executable instructions. Wherein the processor 801 is configured to execute instructions in the memory 803 to implement the policy generation method in the above-described embodiments.
In addition, NWDAF device 80 may also include a communication bus 802 and at least one communication interface 804.
The processor 801 may be a processor (central processing units, CPU), microprocessor unit, ASIC, or one or more integrated circuits for controlling the execution of the programs of the present invention.
The memory 803 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), a compact disc read-only memory (compact disc read-only memory) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory may be stand alone and be connected to the processing unit by a bus. The memory may also be integrated with the processing unit.
The memory 803 is used for storing instructions for executing the present invention, and is controlled by the processor 801. The processor 801 is arranged to execute instructions stored in the memory 803 to carry out the functions of the method of the present invention.
In a particular implementation, the processor 801 may include one or more CPUs, such as CPU0 and CPU1 of FIG. 7, as an embodiment.
In a particular implementation, NWDAF device 80 may include multiple processors, such as processor 801 and processor 807 in fig. 7, as one embodiment. Each of these processors may be a single-core (single-CPU) processor or may be a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).
In a specific implementation, NWDAF device 80 may also include an output device 805 and an input device 806, as one embodiment. An output device 805 communicates with the processor 801 and can display information in a variety of ways. For example, the output device 805 may be a liquid crystal display (liquid crystal display, LCD), a light emitting diode (light emitting diode, LED) display device, a Cathode Ray Tube (CRT) display device, or a projector (projector), or the like. The input device 806 is in communication with the processor 801 and may accept input from a user in a variety of ways. For example, the input device 806 may be a mouse, keyboard, touch screen device, or sensing device, among others.
Those skilled in the art will appreciate that the structure shown in fig. 7 is not limiting of NWDAF device 80 and may include more or fewer components than shown, or may combine certain components, or may employ a different arrangement of components.
In addition, the present invention also provides a computer-readable storage medium including instructions that, when executed by a processor, cause the processor to perform the detection method as provided in the above embodiments.
In addition, the present invention also provides a computer program product comprising computer instructions which, when run on an NWDAF device, cause the NWDAF device to perform the policy generation method as provided by the above embodiments.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
Claims (14)
1. The method is characterized by being applied to a wireless access network, wherein the wireless access network comprises a first network data analysis function NWDAF device, a user plane function UPF device, an edge service MEC device and a base station device, the first NWDAF device is respectively connected with the UPF device and the base station device, and the UPF device is connected with the MEC device; the method comprises the following steps:
the first NWDAF device sends a first request message to the UPF device; the first request message is used for requesting to acquire current service data of the target service; the target service is a service in the MEC equipment;
the first NWDAF device receives current service data of the target service, which is sent by the UPF device;
the first NWDAF device sends a second request message to the base station device; the second request message is used for requesting to acquire current network resource information of the wireless access network;
the first NWDAF device receives the current network resource information sent by the base station device;
the first NWDAF device generates an optimization strategy according to the current network resource information, the current service data and a pre-trained strategy model; the optimization strategy is used for optimizing the target service.
2. The policy generation method according to claim 1, wherein the optimization policies include a first optimization policy for adjusting network resources of the radio access network and a second optimization policy for adjusting network resources of a core network, the method further comprising:
and sending the first optimization strategy to the base station equipment and/or sending the second optimization strategy to a strategy control function PCF equipment of the core network.
3. The policy generation method according to claim 1 or 2, wherein said method further comprises:
the first NWDAF device sends a registration request to a second NWDAF device; the registration request is for requesting communication to be established between the first NWDAF device and the two NWDAF devices.
4. The policy generation method of claim 3, wherein the first NWDAF device sends a first request message to the UPF device, comprising: responding to an indication message sent by the second NWDAF device, and sending the first request message to the UPF device; the indication message is used for indicating that the target service of the first NWDAF device is started;
the first NWDAF device sends a second request message to the base station device, including: and responding to the indication message, and sending the second request message to the base station equipment.
5. The policy generation method according to claim 4, wherein said method further comprises:
the first NWDAF device obtains service information of a plurality of services from the MEC device; the plurality of services comprise the target service, and the service information comprises a service identifier and a service requirement;
the first NWDAF device sends the plurality of service information to the second NWDAF device, so that the second NWDAF device sends the indication message to the first NWDAF device after the target service starts.
6. The policy generation method according to claim 1 or 2, wherein said method further comprises:
the first NWDAF device obtains a service requirement of the target service and a plurality of sample data; each sample data comprises a historical business data, a historical network resource information and an optimization strategy;
the first NWDAF device trains to obtain the strategy model based on the service requirement of the target service and the plurality of sample data.
7. A first network data analysis function NWDAF device, which is characterized by being applied to a radio access network, wherein the radio access network comprises a first network data analysis function NWDAF device, a user plane function UPF device, an edge service MEC device and a base station device, the first NWDAF device is respectively connected with the UPF device and the base station device, and the UPF device is connected with the MEC device; the first NWDAF device comprises a sending unit, a receiving unit and a generating unit;
the sending unit is used for sending a first request message to the UPF equipment; the first request message is used for requesting to acquire current service data of the target service; the target service is a service in the MEC equipment;
the receiving unit is used for receiving the current service data of the target service sent by the UPF equipment;
the sending unit is further configured to send a second request message to the base station device; the second request message is used for requesting to acquire current network resource information of the wireless access network;
the receiving unit is configured to receive the current network resource information sent by the base station device;
the generating unit is used for generating an optimization strategy according to the current network resource information, the current service data and the pre-trained strategy model; the optimization strategy is used for optimizing the target service.
8. The first NWDAF device of claim 7, wherein the optimization policies comprise a first optimization policy for adjusting network resources of the radio access network and a second optimization policy for adjusting network resources of a core network, the sending unit further configured to:
and sending the first optimization strategy to the base station equipment and/or sending the second optimization strategy to a strategy control function PCF equipment of the core network.
9. The first NWDAF device of claim 7 or 8, wherein the transmitting unit is further configured to:
sending a registration request to a second NWDAF device; the registration request is for requesting communication to be established between the first NWDAF device and the two NWDAF devices.
10. The first NWDAF device of claim 9, wherein the transmitting unit is specifically configured to: responding to an indication message sent by the second NWDAF device, and sending the first request message to the UPF device; the indication message is used for indicating that the target service of the first NWDAF device is started;
and responding to the indication message, and sending the second request message to the base station equipment.
11. The first NWDAF device of claim 10, wherein the first NWDAF device further comprises an acquisition unit;
the acquiring unit is used for acquiring service information of a plurality of services from the MEC equipment; the plurality of services comprise the target service, and the service information comprises a service identifier and a service requirement;
the sending unit is further configured to send the plurality of service information to the second NWDAF device, so that the second NWDAF device sends the indication message to the first NWDAF device after the target service starts.
12. The first NWDAF device according to claim 7 or 8, wherein the first NWDAF device further comprises an acquisition unit; the acquisition unit is also used for acquiring the service requirement of the target service and a plurality of sample data; each sample data comprises a historical business data, a historical network resource information and an optimization strategy;
the first NWDAF device further includes a training unit, where the training unit is configured to train to obtain the policy model based on the service requirement of the target service and the plurality of sample data.
13. A network data analysis function NWDAF device, comprising: a processor, a memory for storing instructions executable by the processor; wherein the processor is configured to execute instructions to implement the policy generation method provided in any of the claims 1-6.
14. A computer readable storage medium comprising instructions which, when executed by a processor, cause the processor to perform the policy generation method provided in any of claims 1-6.
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