WO2022032517A1 - Communication method and device - Google Patents

Abstract

Provided in the embodiments of the present application are a communication method and device, the method comprising: a first network element determines first information for a second network element(s), the first information comprising a first maximum number of terminals or a first maximum number of sessions of a network slice on the second network element(s), the first information being related to the service experience and/or load of the network slice on the second network element(s), and there being one or more second network elements; and the first network element sends the first information to the second network element(s). As such, when the first network element determines the first maximum number of terminals or the first maximum number of sessions of the network slice for the second network element(s), the service experience and/or load of the network slice on the second network element(s) are considered. Thus, the first maximum number of terminals and the first maximum number of sessions of the network slice determined for the second network element(s) meet the requirements of the network slice on the second network element(s) so as to prevent terminal access and/or session creation failure, network slice resource waste, and so on that are caused by the unreasonable setting of the first maximum number of terminals or the first maximum number of sessions.

Description

Communication method and device technical field

The present application relates to the field of communication technologies, and in particular, to a communication method and apparatus.

Background technique

With the continuous development of mobile communication technology, most operators separate multiple virtual networks on a unified infrastructure, thus forming network slices. The use of network slices realizes network resource sharing and isolation.

Usually, the network element will have the maximum number of users accommodated in the network slice, which can meet the needs of terminals accessing the network slice and/or session creation in the network slice, and use this to control terminal access to the network slice and/or Or session creation in network slice.

However, it often occurs in the prior art that when the setting of the maximum number of users on the network slice is relatively sufficient, problems such as terminal access and/or session creation failure in the network slice still occur; Insufficient setting of the maximum number of users will cause resource waste in network slicing.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a communication method and device, when a first network element determines the first maximum number of terminals or the first maximum number of sessions for a second network element, considering the service experience of network slices on the second network element and/or Therefore, the first maximum number of terminals and the first maximum number of sessions determined for the second network element meet the requirements of network slicing on the second network element, so as to avoid the setting of the first maximum number of terminals or the first maximum number of sessions. The occurrence of terminal access and/or session creation failure, network slicing resource waste, etc. caused by unreasonable determination.

In a first aspect, an embodiment of the present application provides a communication method, including: a first network element determining first information for a second network element, where the first information includes a first maximum number of terminals in a network slice on the second network element or a first The maximum number of sessions, the first information is related to the service experience and/or load of the network slice on the second network element, the number of the second network element is one or more; the first network element sends the first information to the second network element. In this way, when the first network element determines the first maximum number of terminals or the first maximum number of sessions for the second network element, considering the service experience and/or load of the network slice on the second network element, it is determined by the second network element. The first maximum number of terminals and the first maximum number of sessions are in accordance with the requirements of network slicing on the second network element, so as to avoid terminal access and/or terminal access caused by unreasonable settings of the first maximum number of terminals or the first maximum number of sessions. Or the failure of session creation, waste of network slicing resources, etc.

In a possible implementation manner, the first network element determining the first information for the second network element includes: the first network element receives the second information from the data analysis function network element, and the second information includes the second information on the second network element. Service experience and/or load of the network slice; the first network element determines the first information according to the second information. In this way, the first network element may determine the first information for the second network element according to the service experience and/or load of the network slice on the second network element from the data analysis function network element.

In a possible implementation manner, the first network element receives the second information from the data analysis function network element, including: the first network element determines the identifier of the second network element; the first network element sends the data analysis function network element A first request for requesting the second information, where the first request includes an identification of the second network element; the first network element receives the second information from the data analysis function network element. In this way, the first network element may subscribe the service experience and/or load of the network slice on the second network element to the data analysis function network element according to the identifier of the second network element.

In a possible implementation manner, the first request further includes one or more of the following information: the identifier of the network slice, the data analysis identifier corresponding to the service experience of the network slice, the data analysis identifier corresponding to the load of the network slice, the first The second network element serves the area information of the network slice, and the second network element serves the time information of the network slice.

In a possible implementation manner, the first network element determining the identifier of the second network element includes: the first network element receives the identifier of the second network element from the operation, management and maintenance OAM device or the data analysis function network element.

In a possible implementation manner, the first network element receives the identifier of the second network element from the operation, management and maintenance OAM device or the data analysis function network element, including: the first network element sends the OAM device or the data analysis function network element to the element sends a second request, the second request is used to request the identification of the second network element, and the second request includes one or more of the following information: the identification of the network slice, the area information covered by the network slice, and the time information of the network slice service ; the first network element receives the identifier of the second network element from the OAM device or the data analysis function network element.

In a possible implementation manner, before the first network element determines the first information for the second network element, the method further includes: the first network element determines third information of the network slice on the second network element, where the third information includes the second network element. The maximum number of terminals or the second maximum number of sessions; the first network element sends third information to the second network element; the first network element determines the first information according to the second information, including: the first network element is connected to the second network element When the service experience of the slice is less than the service experience threshold of the network slice or the load of the network slice on the second network element is greater than the load threshold of the network slice, reduce the second maximum number of terminals or the second maximum number of sessions to obtain the first maximum number of terminals Or the first maximum number of sessions; or, when the service experience of the network slice on the second network element of the first network element is greater than the service experience threshold of the network slice or the load of the network slice on the second network element is less than the load threshold of the network slice , increase the second maximum number of terminals or the second maximum number of sessions to obtain the first maximum number of terminals or the first maximum number of sessions; or, the service experience of the network slice on the second network element of the first network element is equal to the service experience of the network slice When the threshold or the load of the network slice on the second network element is equal to the load threshold of the network slice, keep the second maximum number of terminals or the second maximum number of sessions unchanged to obtain the first maximum number of terminals or the first maximum number of sessions.

In a possible implementation manner, the method further includes: the first network element receives the maximum number of terminals or the maximum number of sessions of the network slice from the OAM device.

In a possible implementation manner, the method further includes: the first network element receives, from the data analysis function network element, the predicted number of terminals or the predicted number of sessions of the network slice on the second network element.

In a possible implementation manner, the method further includes: the first network element receives the actual number of terminals or actual sessions of the network slice on the second network element from the second network element or the data analysis function network element.

In a possible implementation manner, the first network element determining the first information according to the second information includes: the first network element determining, according to the second information and the maximum number of terminals or the maximum number of sessions of the network slice, the the first maximum number of terminals or the first maximum number of sessions of the network slice; or, the first network element determines the network slice on the second network element according to the second information and the predicted number of terminals or the predicted number of sessions on the network slice on the second network element or the first network element determines the first maximum number of terminals or the first maximum number of sessions on the second network element according to the second information and the actual number of terminals or actual sessions of the network slice on the second network element a maximum number of terminals or a first maximum number of sessions; or, the first network element according to the second information, the predicted number of terminals or predicted sessions of the network slice on the second network element, and the actual number of terminals in the network slice on the second network element or The actual number of sessions is determined by determining the first maximum number of terminals or the first maximum number of sessions in the network slice on the second network element; The predicted number of terminals or sessions of the network slice on the element and the actual number of terminals or actual sessions of the network slice on the second network element determine the first maximum number of terminals or the first maximum number of sessions of the network slice on the second network element.

In a possible implementation manner, the first network element determining the first information for the second network element includes: the first network element receives a third request from the second network element, and the third request is used to update the second network element The second maximum number of terminals or the second maximum number of sessions on the network slice; the first network element determines the first information of the second network element according to the third request, and the third request is that the second network element accesses the network according to the second network element The slice's service experience and/or load is determined.

In a possible implementation manner, the third request includes: indication information for instructing to reduce the second maximum number of terminals or the second maximum number of sessions in the network slice on the second network element, or for instructing to increase the second network element Indication information of the second maximum number of terminals or the second maximum number of sessions on the network slice.

In a possible implementation manner, the third request includes: indicating that the service experience of the network slice on the second network element by the first network element is less than the service experience threshold of the network slice or the load of the network slice on the second network element Indication information greater than the load threshold of the network slice; or, used to indicate that the service experience of the network slice on the second network element by the first network element is greater than the service experience threshold of the network slice or the load of the network slice on the second network element is smaller than the network slice. or the service experience of the network slice on the second network element of the first network element is equal to the service experience threshold of the network slice or the load of the network slice on the second network element is equal to the load threshold of the network slice.

In a possible implementation manner, the third request further includes: the actual number of terminals or the actual number of sessions of the network slice on the second network element.

In a possible implementation manner, the method further includes: the first network element receives the maximum number of users or the maximum number of sessions of the network slice from the OAM device; the first network element receives the data analysis function network element of the network slice on the second network element. Predicting the number of terminals or predicting the number of sessions; the first network element determines the first information of the second network element according to the third request, including: the first network element according to the maximum number of users or the maximum number of sessions, the number of network slices on the second network element The number of predicted terminals or the number of predicted sessions and the third request are used to determine the first information of the second network element.

In a second aspect, an embodiment of the present application provides a communication method, including: a second network element receiving first information from a first network element, where the first information is related to service experience and/or load of network slices on the second network element ; the second network element processes the terminal access and/or session creation request from the terminal device according to the first information.

In a possible implementation manner, before the second network element receives the first information from the first network element, the method further includes: the second network element sends a fourth request to the data analysis function network element, where the fourth request is used to obtain the data from the data The analysis function network element subscribes to the service experience and/or load of the network slice on the second network element; the second network element sends a third request to the first network element according to the service experience and/or load of the network slice on the second network element.

In a possible implementation manner, the second network element sends a third request to the first network element according to the service experience and/or load of the network slice on the second network element, including: the service of the second network element in the network slice When the experience is less than the service experience threshold of the network slice or the load of the network slice is greater than the load threshold of the network slice, send the second maximum number of terminals or the second maximum session to the first network element for reducing the network slice on the second network element. or, when the service experience of the network slice is greater than the service experience threshold of the network slice or the load of the network slice is smaller than the load threshold of the network slice, the second network element sends a message to the first network element for adding a second network slice A request for the second maximum number of terminals or the second maximum number of sessions for network slices on the meta.

In a third aspect, an embodiment of the present application provides a communication method, including: a data analysis function network element determining an identifier of a second network element, and the number of the second network elements is one or more; element sends the identifier of the second network element; the data analysis function network element evaluates the service experience and/or load of the network slice on the second network element, and the service experience and/or load of the network slice on the second network element is used for the first network element The first information of the second network element is determined, where the first information includes the first maximum number of terminals or the first maximum number of sessions of the network slice on the second network element.

In a possible implementation manner, the method further includes: the data analysis function network element receives the first request of the first network element; the data analysis function network element sends the data analysis function network element to the first network element according to the first request. Business experience and/or load.

In a possible implementation manner, the method further includes: the data analysis function network element receives a fourth request from the second network element; the data analysis function network element sends the data analysis function network element to the second network element according to the fourth request. Business experience and/or load.

In a fourth aspect, an embodiment of the present application provides a communication device. The communication device may be the first network element, or may be a chip or a chip system in the first network element. The communication apparatus may include a processing unit and a communication unit. When the communication device is the first network element, the processing unit may be a processor, and the communication unit may be a communication interface or an interface circuit. The communication device may also include a storage unit, which may be a memory. The storage unit is used for storing instructions, and the processing unit executes the instructions stored in the storage unit, so that the first network element implements a communication method described in the first aspect or any possible implementation manner of the first aspect . When the communication device is a chip or a chip system in the first network element, the processing unit may be a processor, and the communication unit may be a communication interface. For example, the communication interface may be an input/output interface, a pin or a circuit, or the like. The processing unit executes the instructions stored in the storage unit, so that the first network element implements a communication method described in the first aspect or any possible implementation manner of the first aspect. The storage unit may be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit in the first network element located outside the chip (for example, a read-only memory, a random access memory, etc.) .

Exemplarily, the processing unit is configured to determine first information for the second network element, where the first information includes the first maximum number of terminals or the first maximum number of sessions in the network slice on the second network element, the first information and the second network element. The service experience and/or load of the network slice on the element is related, and the number of the second network element is one or more; the communication unit is configured to send the first information to the second network element.

In a possible implementation manner, the communication unit is specifically configured to receive second information from the data analysis function network element, where the second information includes the service experience and/or load of the network slice on the second network element; the processing unit, specifically for determining the first information according to the second information.

In a possible implementation manner, the processing unit is specifically configured to determine the identifier of the second network element; the communication unit is specifically configured to send a first request for requesting the second information to the data analysis function network element, the first request It includes the identifier of the second network element; the communication unit is specifically configured to receive the second information from the data analysis function network element.

In a possible implementation manner, the first request further includes one or more of the following information: the identifier of the network slice, the data analysis identifier corresponding to the service experience of the network slice, the data analysis identifier corresponding to the load of the network slice, the first The second network element serves the area information of the network slice, and the second network element serves the time information of the network slice.

In a possible implementation manner, the communication unit is specifically configured to receive the identifier of the second network element from the operation, management and maintenance OAM device or the data analysis function network element.

In a possible implementation manner, the communication unit is specifically configured to send a second request to the OAM device or the data analysis function network element, where the second request is used to request the identifier of the second network element, and the second request includes the following information: One or more: network slice identifier, area information covered by the network slice, time information of network slice service; communication unit, specifically configured to receive the identifier of the second network element from the OAM device or the data analysis function network element.

In a possible implementation manner, the processing unit is specifically configured to determine third information of the network slice on the second network element, where the third information includes the second maximum number of terminals or the second maximum number of sessions; the communication unit is specifically configured to Sending third information to the second network element; the processing unit is specifically configured to determine the first information according to the second information, including: the service experience of the first network element in the network slice on the second network element is less than the service experience threshold of the network slice or When the load of the network slice on the second network element is greater than the load threshold of the network slice, reduce the second maximum number of terminals or the second maximum number of sessions to obtain the first maximum number of terminals or the first maximum number of sessions; or, the first network If the service experience of the network slice on the second network element is greater than the service experience threshold of the network slice or the load of the network slice on the second network element is less than the load threshold of the network slice, increase the second maximum number of terminals or the second maximum session or, the service experience of the network slice on the second network element of the first network element is equal to the service experience threshold of the network slice or the load of the network slice on the second network element is equal to In the case of the load threshold of the network slice, keep the second maximum number of terminals or the second maximum number of sessions unchanged to obtain the first maximum number of terminals or the first maximum number of sessions.

In a possible implementation manner, the communication unit is specifically configured to receive the maximum number of terminals or the maximum number of sessions of the network slice from the OAM device.

In a possible implementation manner, the communication unit is specifically configured to receive, from the second network element, the actual number of terminals or the actual number of sessions of the network slice on the second network element.

In a possible implementation manner, the processing unit is specifically configured to determine the first maximum number of terminals or the first maximum session of the network slice on the second network element according to the second information and the maximum number of terminals or the maximum number of sessions of the network slice or, it is specifically used to determine the first maximum number of terminals or the first maximum number of sessions of the network slice on the second network element according to the second information and the actual number of terminals or actual sessions of the network slice on the second network element; or , which is specifically used to determine the first maximum number of terminals of the network slice on the second network element according to the second information, the maximum number of terminals or the maximum number of sessions of the network slice, and the actual number of terminals or the actual number of sessions of the network slice on the second network element Or the first maximum number of sessions.

In a possible implementation manner, the communication unit is specifically configured to receive a third request from the second network element, where the third request is used to update the second maximum number of terminals or the second maximum session of the network slice on the second network element The processing unit is specifically configured to determine the first information of the second network element according to the third request; the third request is determined by the second network element according to the service experience and/or load of the network slice on the second network element.

In a possible implementation manner, the third request includes: indication information for instructing to reduce the second maximum number of terminals or the second maximum number of sessions in the network slice on the second network element, or for instructing to increase the second network element Indication information of the second maximum number of terminals or the second maximum number of sessions on the network slice.

In a possible implementation manner, the third request includes: indicating that the service experience of the network slice on the second network element by the first network element is less than the service experience threshold of the network slice or the load of the network slice on the second network element Indication information greater than the load threshold of the network slice; or, used to indicate that the service experience of the network slice on the second network element by the first network element is greater than the service experience threshold of the network slice or the load of the network slice on the second network element is smaller than the network slice. or the service experience of the network slice on the second network element of the first network element is equal to the service experience threshold of the network slice or the load of the network slice on the second network element is equal to the load threshold of the network slice.

In a possible implementation manner, the third request further includes: the actual number of terminals or the actual number of sessions of the network slice on the second network element.

In a possible implementation manner, the communication unit is specifically configured to receive the maximum number of users or the maximum number of sessions of the network slice from the OAM device; the processing unit is specifically configured to determine the first information of the second network element according to the third request , including: determining the first information of the second network element according to the maximum number of users or the maximum number of sessions and the third request.

In a fifth aspect, an embodiment of the present application provides a communication device. The communication device may be the second network element, or may be a chip or a chip system in the second network element. The communication apparatus may include a processing unit and a communication unit. When the communication device is the second network element, the processing unit may be a processor, and the communication unit may be a communication interface or an interface circuit. The communication device may also include a storage unit, which may be a memory. The storage unit is used for storing instructions, and the processing unit executes the instructions stored in the storage unit, so that the second network element implements a communication method described in the second aspect or any possible implementation manner of the second aspect . When the communication device is a chip or a chip system in the second network element, the processing unit may be a processor, and the communication unit may be a communication interface. For example, the communication interface may be an input/output interface, a pin or a circuit, or the like. The processing unit executes the instructions stored in the storage unit, so that the second network element implements a communication method described in the second aspect or any possible implementation manner of the second aspect. The storage unit may be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit in the second network element located outside the chip (for example, a read-only memory, a random access memory, etc.) .

Exemplarily, the communication unit is configured to receive first information from the first network element, where the first information is related to the service experience and/or load of the network slice on the second network element; the processing unit is configured to process according to the first information Terminal access and/or session creation requests from terminal devices.

In a possible implementation manner, the communication unit is specifically configured to send a fourth request to the data analysis function network element, where the fourth request is used to subscribe from the data analysis function network element to the service experience and/or service experience of the network slice on the second network element or load; a communication unit, specifically configured to send a third request to the first network element according to the service experience and/or load of the network slice on the second network element.

In a possible implementation manner, the communication unit is specifically configured to send a message to the first network element when the service experience of the network slice is less than the service experience threshold of the network slice or the load of the network slice is greater than the load threshold of the network slice A request for reducing the second maximum number of terminals or the second maximum number of sessions in the network slice; or, when the service experience of the network slice is greater than the service experience threshold of the network slice or the load of the network slice is less than the load threshold of the network slice, the The first network element sends a request for increasing the second maximum number of terminals or the second maximum number of sessions in the network slice.

In a sixth aspect, an embodiment of the present application provides a communication device. The communication device may be a data analysis function network element, or may be a chip or a chip system in the data analysis function network element. The communication apparatus may include a processing unit and a communication unit. When the communication device is a data analysis function network element, the processing unit may be a processor, and the communication unit may be a communication interface or an interface circuit. The communication device may also include a storage unit, which may be a memory. The storage unit is used for storing instructions, and the processing unit executes the instructions stored in the storage unit, so that the data analysis function network element implements a communication described in the third aspect or any possible implementation manner of the third aspect method. When the communication device is a chip or a chip system in the data analysis function network element, the processing unit may be a processor, and the communication unit may be a communication interface. For example, the communication interface may be an input/output interface, a pin or a circuit, or the like. The processing unit executes the instructions stored in the storage unit, so that the data analysis function network element implements a communication method described in the third aspect or any possible implementation manner of the third aspect. The storage unit may be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit (for example, a read-only memory, a random access memory, etc.) located outside the chip in the data analysis function network element ).

Exemplarily, a processing unit, configured to determine the identifier of the second network element, the number of which is one or more; a communication unit, configured to send the identifier of the second network element to the first network element; the processing unit, for evaluating the service experience and/or load of the network slice on the second network element, and the service experience and/or load of the network slice on the second network element is used for the first network element to determine the first information of the second network element, The first information includes the first maximum number of terminals or the first maximum number of sessions of the network slice on the second network element.

In a possible implementation manner, the communication unit is specifically configured to receive the first request of the first network element; the communication unit is specifically configured to send the network slice service on the second network element to the first network element according to the first request experience and/or load.

In a possible implementation manner, the communication unit is specifically configured to receive a fourth request from the second network element; the communication unit is specifically configured to send the network slice service on the second network element to the second network element according to the fourth request experience and/or load.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program or instruction is stored, and when the computer program or instruction is run on a computer, the computer executes the steps from the first aspect to the first aspect. The communication method described in any one of the four aspects.

In an eighth aspect, the embodiments of the present application provide a computer program product including instructions, when the instructions are executed on a computer, the computer can execute the communication method described in any one of the implementation manners of the first aspect to the third aspect.

In a ninth aspect, an embodiment of the present application provides a communication system, the system includes any one or more of the following: the communication device described in the fourth aspect and various possible implementation manners, the fifth aspect and each of the fifth aspect The communication apparatus described in one possible implementation manner, the communication apparatus described in the sixth aspect and various possible implementation manners of the sixth aspect.

In a tenth aspect, an embodiment of the present application provides a communication device, the device includes a processor and a storage medium, the storage medium stores an instruction, and when the instruction is executed by the processor, the implementation is as described in any implementation manner of the first aspect to the third aspect. communication method.

In an eleventh aspect, the present application provides a chip or a chip system, the chip or chip system includes at least one processor and a communication interface, the communication interface and the at least one processor are interconnected by a line, and the at least one processor is used for running a computer program or instruction , to perform the communication method described in any one of the implementation manners of the first aspect to the third aspect.

Wherein, the communication interface in the chip may be an input/output interface, a pin, a circuit, or the like.

In a possible implementation, the chip or chip system described above in this application further includes at least one memory, where instructions are stored in the at least one memory. The memory may be a storage unit inside the chip, such as a register, a cache, etc., or a storage unit of the chip (eg, a read-only memory, a random access memory, etc.).

It should be understood that the second to eleventh aspects of the present application correspond to the technical solutions of the first aspect of the present application, and the beneficial effects obtained by each aspect and the corresponding feasible implementation manner are similar, and will not be repeated.

Description of drawings

FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of the present application;

FIG. 2 is a schematic structural diagram of an application scenario provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of allocating the number of network slice users according to an embodiment of the present application;

FIG. 4 is a schematic diagram of allocating the number of network slice users according to an embodiment of the present application;

5 is a schematic diagram of an NWDAF network element evaluation architecture provided by an embodiment of the present application;

6 is a schematic flowchart of a communication method provided by an embodiment of the present application;

FIG. 7 is a schematic flowchart of a communication method provided by an embodiment of the present application;

FIG. 8 is a schematic flowchart of a communication method provided by an embodiment of the present application;

FIG. 9 is a schematic flowchart of a communication method provided by an embodiment of the present application;

FIG. 10 is a schematic flowchart of a communication method provided by an embodiment of the present application;

11 is a schematic flowchart of a communication method provided by an embodiment of the present application;

12 is a schematic flowchart of a communication method provided by an embodiment of the present application;

13 is a schematic flowchart of a communication method provided by an embodiment of the present application;

14 is a schematic flowchart of a communication method provided by an embodiment of the present application;

FIG. 15 is a schematic structural diagram of a communication device according to an embodiment of the present application;

FIG. 16 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 17 is a schematic structural diagram of a chip provided by an embodiment of the present application.

detailed description

In order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same or similar items with basically the same function and effect. For example, the first network element and the second network element are only used to distinguish different network elements, and the sequence of the first network element is not limited. Those skilled in the art can understand that the words "first", "second" and the like do not limit the quantity and execution order, and the words "first", "second" and the like are not necessarily different.

It should be noted that, in this application, words such as "exemplary" or "for example" are used to represent examples, illustrations or illustrations. Any embodiment or design described in this application as "exemplary" or "such as" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner.

In this application, "at least one" means one or more, and "plurality" means two or more. "And/or", which describes the association relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, which can indicate: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects are an "or" relationship. "At least one item(s) below" or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one item (a) of a, b, or c may represent: a, b, c, ab, ac, bc, or abc, where a, b, and c may be single or multiple .

The methods in the embodiments of the present application may be applied in long term evolution (long term evolution, LTE), and may also be applied in a fifth generation mobile communication (5th generation, 5G) system, or a future mobile communication system.

Exemplarily, FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of the present application. Wherein, the network architecture includes terminal equipment (user equipment, UE), (radio) access network ((radio) access network, (R)AN), core network (core network, CN) and data network (data network, DN) ). The terminal device may be a network terminal device, such as a mobile phone, an Internet of Things terminal device, etc.; the access network device is mainly used to implement functions such as wireless physical layer functions, resource scheduling and wireless resource management, wireless access control, and mobility management; Core network devices can include management devices and gateway devices. Management devices are mainly used for device registration, security authentication, mobility management, and location management of terminal devices. Gateway devices are mainly used to establish channels with terminal devices and forward on the channel. Data packets between a terminal device and an external data network; the data network may include network devices (such as servers, routers, etc.), and the data network is mainly used to provide a variety of data business services for the terminal device. Exemplarily, the access network, core network and data network in 5G are used as examples for description.

The access network in 5G can be a radio access network (R)AN, and the (R)AN device in the 5G system can be composed of multiple 5G-(R)AN nodes. ) AN nodes may include: 3GPP access networks, non-3GPP access networks such as access points (access points, APs) of WiFi networks, next-generation base stations (which may be collectively referred to as new-generation radio access network nodes (NG-RAN) node), wherein the next-generation base station includes a new air interface base station (NR nodeB, gNB), a new generation of evolved base station (NG-eNB), a central unit (central unit, CU) and a distributed unit (distributed unit, DU) separate forms gNB, etc.), transceiver point (transmission receive point, TRP), transmission point (transmission point, TP) or other nodes.

5G core network (5G core/new generation core, 5GC/NGC) includes access and mobility management function (AMF) network elements, session management function (session management function, SMF) network elements, user plane User plane function (UPF) network element, authentication server function (AUSF) network element, policy control function (PCF) network element, application function (AF) network element, unified Unified data management (UDM) network element, network slice selection function (NSSF) network element, network element function (NEF) network element, network data analysis function (network data analytics function, NWDAF) network element and other functional units.

Among them, the AMF network element is mainly responsible for mobility management, access management and other services, such as user location update, user registration network, user switching and so on.

SMF network elements are mainly responsible for session management, dynamic host configuration protocol functions, selection and control of user plane functions, such as session establishment, modification, and release. Specific functions include assigning IP addresses to users and selecting UPF network elements that provide packet forwarding functions.

The UPF network element is mainly responsible for external connection to the data network (DN) and data packet routing and forwarding on the user plane, packet filtering, and performing quality of service (QoS) control related functions, such as forwarding, billing, etc. .

DN mainly provides services for user equipment, such as providing mobile operator services, Internet services or third-party services.

The AUSF network element is mainly responsible for the authentication function of the terminal equipment.

The PCF network element is mainly responsible for providing a unified policy framework for network behavior management, providing policy rules for control plane functions, and obtaining registration information related to policy decisions, such as QoS policies, slice selection policies, and so on. It should be noted that these functional units can work independently, or can be combined to implement certain control functions, such as access control and mobility management functions such as access authentication, security encryption, location registration, etc. Session management functions such as establishment, release, and modification of plane transmission paths.

UDM network elements are unified user data management, and are mainly used to store user equipment subscription data, such as storage subscription information and authentication/authorization information.

The AF network element is responsible for providing service-related information to the 3GPP network, such as for influencing service routing, interacting with the PCF network element for policy control, and the like.

The NWDAF network element has at least one of the following functions: a data collection function, a data training function, a data inference function, and a data analysis result feedback function. Among them, the data collection function means that NWDAF network elements can collect data from network network elements, third-party service servers, terminal equipment or network management systems, etc., and the data can be used as input data for data training or data inference functions; data training functions refer to The NWDAF network element performs offline data analysis and training operations on a large amount of acquired input data, and obtains the corresponding data model or data rule or data feature; the data inference function means that the NWDAF network element performs online inference based on input data or inference data and obtains Data analysis results; the data analysis result feedback function can send the data analysis results to network elements, third-party service servers, terminal equipment or network management systems. The analysis results can assist the network to select service quality parameters for services, or assist the network to perform traffic routing. , or assist the network to select a background traffic transmission strategy, etc.

NWDAF network elements can be independently deployed network elements, or can be co-located or deployed with other network elements (such as AMF network elements, SMF network elements, or PCF network elements, etc.) The function of adding an NWDAF network element to the network element is not specifically limited in this embodiment of the present application.

The functional units in the 5G system can communicate through the next generation network (NG) interface. For example, the terminal equipment can transmit control plane messages with the AMF network element through the NG interface 1 (N1 for short), and the RAN equipment can Through NG interface 3 (referred to as N3) to establish a user plane communication connection with UPF to establish a channel, AN/RAN equipment can establish a control plane signaling connection with AMF network element through NG interface 2 (referred to as N2), and UPF network element can use NG interface 4 to establish a control plane signaling connection (N4 for short) information exchange with SMF network element, UPF network element can exchange user plane data with data network DN through NG interface 6 (N6 for short), AMF network element can communicate with SMF network element through NG interface 11 (N11 for short) For information exchange, the SMF network element can exchange information with the PCF network element through the NG interface 7 (N7 for short), and the AMF network element can exchange information with the AUSF network element through the NG interface 12 (N12 for short).

With the continuous development of mobile communication technology, most operators separate multiple virtual networks on a unified infrastructure, thus forming network slices. The use of network slices realizes network resource sharing and isolation.

Exemplarily, FIG. 2 is a schematic structural diagram of an application scenario provided by an embodiment of the present application.

As shown in Figure 2, the network architecture includes end users, operators, and slice tenants. Network slices are divided on the control plane of the core network. The main slice types are eMBB and URLLC. Among them, eMBB_1, eMBB_2, and URLLC_3 are associated Network slicing. Under the association of the wireless access network, different network slices are adapted to different applications, and the corresponding slice tenants' sessions are Internet Protocol (IP) session 1#, IP session 2 #, IP session 3#. Among them, for the three different slices, the network side slice resources include but are not limited to core network resources (such as SMF network elements, UPF network elements, etc.), and RAN side air interface resources. Usually, air interface resources can be used between multiple slices. shared, but slice sharing will cause shortage of air interface resources, which results in the maximum number of users (including the maximum number of subscribers, or, maximum number of UEs) and/or the maximum number of sessions ( maximum number of PDU sessions)) is limited. Of course, when the core network resources in a network slice are certain, the maximum number of terminals and the maximum number of sessions that can be accommodated in the slice are also limited.

In a possible way of understanding, the maximum number of terminals is also referred to as the maximum number of slice terminals accessed or the maximum number of slice terminals registered.

In a possible way of understanding, the maximum number of sessions may also be referred to as the maximum number of bearers (maximum number of bearers) or the maximum number of flows (for example, the number of quality of service flow, QoS flow).

The operator needs to perceive the maximum number of terminals and the maximum number of sessions in the slice, and then assist the control plane network element (eg PCF network element) to control the access of terminals in the slice or control the creation of sessions in the slice. Exemplarily, if the PCF network element learns that the maximum number of terminals in the eMBB_1 slice is 3 million, and the current number of terminals in the eMBB_1 slice is about to exceed or has already exceeded 3 million, the PCF network element may reject the registration of new UEs to this slice. request, otherwise the registration request can be accepted. Exemplarily, if the PCF network element learns that the maximum number of sessions in the eMBB_1 slice is 2 million, and the current number of sessions in the eMBB_1 slice is about to exceed or has exceeded 2 million, the PCF network element may reject the new UE in the slice. A request to create a session, otherwise the session creation request can be accepted.

In addition, in Figure 2, there are two network slices with eMBB type for single network slice selection assistance information (S-NSSAI), namely "eMBB_1" and "eMBB_2". The maximum number of users of the eMBB type slice is 5 million, so the two slices eMBB_1 and eMBB_2 need to be allocated separately for these 5 million users.

In a possible implementation manner, the maximum number of users may be the maximum number of terminals or the maximum number of sessions. Exemplarily, FIG. 3 is a schematic diagram of allocating the number of users in a network slice according to an embodiment of the present application. As shown in Figure 3, for a slice type identified by S-NSSAI, the operation, administration and maintenance (OAM) network element configures the maximum number of users it can accommodate in the unified data repository (unified data repository). , UDR) network element or unified data management (unified data management, UDM) network element or a central PCF (center PCF or master PCF or primary PCF) network element. Assuming that there are N sub-slices under the S-NSSAI, generally, sub-slices can be divided by regions, network slice instances, etc., and each sub-slice has a PCF network element to control the maximum number of terminals or the maximum number of sessions for the slice. The UDR network element or UDM network element can be divided according to the maximum number of users, divided into N number of users in the first slice, and then divided the number of users in the first slice into PCF 1 network element, PCF 2 network element... PCF N network elements, these PCF network elements can be normal PCF (normal PCF or local PCF or distributed PCF) network elements. Next, the PCF 1 network element, the PCF 2 network element, and the PCF N network element respectively perform user slice access control or user slice creation session control according to the respective number of users in the first slice. It can be seen that the number of slicing terminals or the number of slicing sessions is controlled according to the total-divided mode (UDR/UDM-PCF, or Master PCF-PCF).

It is worth noting that the above sub-slices are divided according to the service scope of different control network elements (such as PCF 1 network element, PCF 2 network element... PCF N network element) in a network slice. Optionally, the service scope can be a network area.

It should be noted that the sum of the number of users in the first slice 1, the number of users in the first slice 2...the number of users in the first slice N is equal to or less than the (total) maximum number of users in the slice.

Exemplarily, taking the sub-slice 1 corresponding to the S-NSSAI as an example, initially, the actual number of terminals (counter for current UEs) in the sub-slice 1 is 0, and the actual number of sessions (the actual number of PDU Sessions) in the sub-slice 1 is 0. , counter for current PDU sessions) is 0. When performing terminal access control in a slice, the UE sends a registration request to the AMF 1 network element, and the AMF 1 network element interacts with the PCF 1 network element to determine whether it can access the sub-slice 1 corresponding to the S-NSSAI. The element determines that the actual number of terminals in the current sub-slice 1 has approached or exceeded the number of users in the first slice 1 (that is, the number of terminals in the first slice 1), then rejects the UE to access the slice corresponding to the S-NSSAI; otherwise , accepting UE access to the slice corresponding to S-NSSAI, at this time, the actual number of terminals in sub-slice 1 increases by 1; when session creation control is performed in the slice, the UE sends a protocol data unit (protocol data unit, PDU) session (session ) Create request to SMF 1 network element, SMF 1 network element interacts with PCF 1 network element to determine whether a PDU Session can be created in sub-slice 1 corresponding to S-NSSAI, if PCF 1 network element determines the actual PDU in current sub-slice 1 If the number of sessions is close to or exceeds the number of users in the first slice, 1 (that is, the number of sessions in the first slice is 1), the UE's request for creating a PDU Session in sub-slice 1 is rejected; otherwise, the UE's request for creating a PDU Session in sub-slice 1 is accepted. Create a PDU Session request. At this time, the actual number of PDU Sessions in sub-slice 1 is increased by 1.

However, in this implementation manner, the setting of the maximum number of terminals and/or the maximum number of sessions on the network slice is always sufficient, and there are still problems such as the failure of slice terminal access and/or session creation; or, on the network slice When the maximum number of users is not set sufficiently, it will cause resource waste in network slicing.

Based on this, an embodiment of the present application provides a communication method, in which a first network element determines first information for a second network element, where the first information includes the first maximum number of terminals or the first maximum number of sessions in the network slice on the second network element , the first information is related to the service experience and/or load of the network slice on the second network element, and the number of the second network elements is one or more; the first network element sends the first information to the second network element. In this embodiment of the present application, when the first network element determines the first maximum number of terminals or the first maximum number of sessions for the second network element, considering the service experience and/or load of the network slice on the second network element, the first network element is the first network element. The first maximum number of terminals and the first maximum number of sessions determined by the second network element are in line with the requirements of network slicing on the second network element, to avoid terminal problems caused by unreasonable settings of the first maximum number of terminals or the first maximum number of sessions Occurrence of access and/or session creation failure, waste of network slice resources, etc.

Exemplarily, FIG. 4 is a schematic diagram of allocating the number of users in a network slice provided by an embodiment of the present application.

As shown in Figure 4, a network data analytics function (NWDAF) network element can measure the service experience and/or load of the network slice on one or more PCF network elements within the network slice.

In a possible implementation manner, the first network element may obtain the service experience and/or load of the network slice on one or more second network elements in the network slice from the data analysis function network element. The first network element may be based on the service experience and/or load of the network slice on one or more second network elements in the network slice, the actual number of terminals or the actual number of sessions on the network slice on one or more second network elements in the network slice The first maximum number of terminals or the first maximum number of sessions for allocating an appropriate network slice to the second network element. For example, the first network element may initially allocate the second maximum number of terminals or the second maximum number of sessions to the second network element randomly or according to certain rules. The service experience and/or load of network slices on multiple second network elements, the actual number of terminals or actual sessions of network slices on one or more second network elements in the network slice, etc., adjust one or more network slices in the network slice. The second maximum number of terminals or the second maximum number of sessions in the network slice on the second network element is obtained to obtain the first maximum number of terminals or the first maximum number of sessions that meet the requirements of the network slice on the second network element. The first maximum number of terminals or the first maximum number of sessions processes a session creation request from a terminal device and/or a request for a terminal to register with the slice.

In a possible implementation manner, the second network element may obtain the service experience and/or load of the network slice on one or more second network elements in the network slice from the data analysis function network element. The second network element may be based on the service experience and/or load of the network slice on one or more second network elements in the network slice, the actual number of terminals or the actual number of sessions on the network slice on one or more second network elements in the network slice and so on to determine the first maximum number of terminals or the first maximum number of sessions of the network slice adapted to the second network element, and then request the first network element for the first maximum number of terminals or the first maximum number of sessions of the suitable network slice. For example, the first network element may initially allocate the second maximum number of terminals or the second maximum number of sessions to the second network element randomly or according to certain rules. The service experience and/or load of network slices on multiple second network elements, the actual number of terminals or actual sessions of network slices on one or more second network elements in the network slice, etc., determine whether it is necessary to adjust one or more network slices in the network slice. The second maximum number of terminals or the second maximum number of sessions in the network slice on multiple second network elements. If adjustment is required, the second network element may request the first network element to adjust the number of one or more second network elements in the network slice. The second maximum number of terminals or the second maximum number of sessions of the network slice, obtain the first maximum number of terminals or the first maximum number of sessions that meet the requirements of the network slice on the second network element, the second network element according to the first maximum number of network slices The terminal number or the first maximum session number handles session creation requests from terminal devices and/or terminal registration requests to the slice.

The first network element described in the embodiments of this application may be a UDM network element, a UDR network element, a Master PCF network element, an NSSF network element, an NWDAF network element, or an OAM device, or other network elements that implement a data management function.

The second network element described in the embodiment of the present application may be a PCF network element, an AMF network element, or an SMF network element, etc. Optionally, the PCF network element may be a normal PCF (normal PCF or local PCF or distributed PCF) network element.

Exemplarily, taking the first network element as an NSSF network element and the second network element as an AMF network element as an example, the NSSF network element may obtain the maximum number of users in the entire network slice from the OAM device, and the network slice may include N AMFs. NE, each of these AMF NEs can obtain the local maximum number of users from the NSSF NE, for example, AMF 1 NE can obtain the first slice user number 1, and AMF 2 NE can obtain the first slice Number of users 2 and so on.

In the total-point mode described in the embodiments of this application, in addition to UDR/UDM-PCF or Master PCF-PCF, the control network element may also have other options, such as NSSF-AMF, NSSF-PCF, NWDAF-AMF, OAM-AMF et al.

Some words in the embodiments of the present application will be described below.

The network slices described in the embodiments of this application can be of the following three types: enhanced mobile broadband (eMBB), ultra-high-reliability and low-latency communication (URLLC), enhanced mobile broadband (eMBB), and ultra-high-reliability and low-latency communication (URLLC) Machine type communication (enhanced machine type communication, eMTC).

The maximum number of terminals described in this embodiment of the present application may also be referred to as the maximum number of slice terminals accessed or the maximum number of slice terminals registered.

The maximum number of sessions described in the embodiments of the present application may also be referred to as the maximum number of bearers (maximum number of bearers) or the maximum number of flows (maximum number of flows, such as the number of quality of service flows (QoS flow, QoS flows).

The data analysis function network element described in the embodiments of the present application may be an NWDAF network element or other network elements that implement the data analysis function. The service experience model described in the embodiments of this application can be trained by any method. The input information of the service experience model may be description information related to the network slice, and the output may be the service experience and/or load of the network slice. Exemplarily, FIG. 5 is a schematic diagram of an NWDAF network element evaluation architecture provided by an embodiment of the present application.

As shown in Figure 5, the NWDAF network element can use the service experience model and the network data and network management data corresponding to the real-time service flow to obtain the service experience of the service flow. business experience, and then evaluate the business experience of the entire slice. Optionally, the service experience of the entire slice may be an average value or a variance value of the service experience of the service flow. The data source of the business data can be a business service provider (application server provider, ASP) or a slice tenant on a multi-access edge computing (multi-access edge computing, MEC) platform, and the data source of the network management data can be slice management In the management data analytics service (MDAS), the data source of the network data can be the slice information on the network slice isolated on the control plane of the 5GC core network.

Exemplarily, Table 1 is information describing service data, Table 2 is information describing network data, and Table 3 is information describing network management data. In a possible implementation, the expression of the business experience model can be

h(x)=w ₀ x ₀ +w ₁ x ₁ +w ₂ x ₂ +w ₃ x ₃ +w ₄ x ₄ +w ₅ x ₅ +…+w _D x _D

Among them, h(x) describes the service experience in the service data, and the data source of the service experience is the application function (AF) network element; the information describing the service data also includes one of the following or multiple types: service identifier (application ID), service flow IP quintuple (IP filter information), data network access identifier (DNAI, which is actually the location of the service or server access point) or timestamp (timestamp), in a possible implementation manner, the data source of the information used to describe the service data may be the AF network element, and in a possible implementation manner, the data source of the service location DNAI may also be the network exposure function , NEF) network element.

In a possible implementation manner, x ₁ describes the quality of service flow bit rate (quality of service flow bit rate, QoS flow bit rate) in the network data, x ₂ describes the QoS flow packet delay in the network data, and x ₃ describes the number of packet transmissions in the network data, x ₄ describes the number of packet retransmissions in the network data, the data source of the QoS stream bit rate, QoS stream packet delay, the number of packet transmissions, and the number of packet retransmissions It can be a UPF network element; in a possible implementation manner, the information describing network data may also include one or more of the following: timestamp, user location (location), user permanent identifier (subscription permanent identifier, SUPI), service The data network name (DNN) of the session, the slice identifier (S-NSSAI) where the service is located, the service identifier, the service flow IP quintuple or the QoS flow identifier, and the data source of the timestamp can be the 5G core network (5G core network). core, 5GC) network function (network function, NF) network element, the data source of user location and user permanent identity can be AMF network element, DNN of the session where the service is located, the slice identifier where the service is located, the service identifier, and the IP of the service flow. The data source of the tuple and the QoS flow identification can be the SMF network element.

In a possible implementation manner, x ₅ describes the wireless channel quality reference signal received power (reference signal received power, RSRP) in the network management data, and x _D describes the wireless channel quality reference signal received quality (reference signal) in the network management data. received quality, RSRQ), in a possible implementation manner, the information describing the network management data also includes time stamp, wireless channel quality signal-to-noise and interference ratio (SINR), time stamp, wireless channel quality The data source of the SINR can be an OAM device.

Table 1 Business data

Table 2 Network data

Table 3 Network management data

In a possible implementation manner, the NWDAF network element may further determine the slice load according to the service experience of the slice. Optionally, it is assumed that the service in the slice is a voice service, and the service experience is the mean opinion score (mean opinion score, MOS, a service experience evaluation index of a voice service). Usually, the value range of the MOS score is [0, 5], the user requires that the MOS score is above 3.0, then the value range can be divided into [0, 3.0), [3.0, 3.5), [3.5, 4.0), [4.0, 4.5), [4.5, 5.0], The corresponding slice loads are 5, 4, 3, 2, and 1. The larger the value, the heavier the load, and the worse the service experience. Therefore, the slice load can be determined according to the value range of the service experience of each load level and the service experience value of the actual slice.

The technical solutions of the present application and how the technical solutions of the present application solve the above-mentioned technical problems will be described in detail below with specific examples. The following specific embodiments can be implemented independently or combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

FIG. 6 is a schematic flowchart of a communication method provided by an embodiment of the present application, including the following steps:

S601: The first network element determines first information for the second network element, where the first information is related to the service experience and/or load of the network slice on the second network element.

In this embodiment of the present application, the number of the second network elements may be one or more, the first information includes the first maximum number of terminals or the first maximum number of sessions in the network slice on the second network element, and the first network element is the second network element. When the network element determines the first maximum number of terminals or the first maximum number of sessions, considering the service experience and/or load of the network slice on the second network element, the first maximum number of terminals and the first maximum number of The number of sessions is in line with the requirements of network slicing on the second network element, avoiding terminal access and/or session creation failure, waste of network slicing resources, etc. caused by the unreasonable setting of the first maximum terminal number or the first maximum session number situation occurs.

In this embodiment of the present application, the first network element may acquire the service experience and/or load of the network slice on the second network element, and determine the first network element for the second network element according to the service experience and/or load of the network slice on the second network element. a message. The first network element may also determine the first information based on the indication of other network elements (for example, the second network element), wherein the other network element may obtain the service experience and/or load of the network slice on the second network element, and determine the first information according to the first network element. The service experience and/or load of the network slice on the second network element instructs the first network element to determine the first information that meets the requirements of the network slice on the second network element. In specific implementation, the first network element may also determine the first information in other manners according to an actual application scenario, which is not specifically limited in this embodiment of the present application.

S602: The first network element sends the first information to the second network element.

In this embodiment of the present application, the first network element may send the first maximum number of terminals or the first maximum number of sessions of the network slice to the second network element. The implementation method is not limited.

S603: The second network element processes the session creation request from the terminal device or the request for the terminal to register to the slice according to the first information.

In this embodiment of the present application, the second network element may process a session creation request from a terminal device and/or a request for a terminal to register with the slice according to the first maximum number of terminals or the first maximum number of sessions indicated by the first information.

Exemplarily, if the second network element learns that the number of terminals or sessions in the current network slice is about to exceed or has exceeded the first maximum number of terminals or the first maximum number of sessions, the second network element A request for creating a session in this slice and/or registering in this slice, otherwise, a request for creating a session and/or a request for a terminal to register with this slice may be accepted.

To sum up, when the first network element determines the first maximum number of terminals or the first maximum number of sessions for the second network element, considering the service experience and/or load of the network slice on the second network element, it is the second network element. The first maximum number of terminals and the first maximum number of sessions determined by the element meet the requirements of network slicing on the second network element, and the second network element processes the session creation from the terminal device according to the first maximum number of terminals or the first maximum number of sessions A request and/or a request for a terminal to register to the slice, to avoid the occurrence of terminal access and/or session creation failure, waste of network slice resources, etc. caused by unreasonable settings of the first maximum number of terminals or the first maximum number of sessions .

On the basis of the embodiment corresponding to FIG. 6 , FIG. 7 is a schematic flowchart of a communication method provided by an embodiment of the present application, including the following steps:

S701: The first network element acquires the service experience and/or load of the network slice on one or more second network elements in the network slice from the data analysis function network element.

In the embodiment of the present application, the service experience and/or load of the network slice on one or more second network elements in the network slice is obtained by inference from the network element with the data analysis function according to the service experience model, network data and network management data.

The first network element can obtain the service experience and/or load of the network slice on one or more second network elements in the network slice from the data analysis function network element, and then can update the network slice on the second network element for the second network element. The second maximum number of terminals or the second maximum number of sessions.

S702: The first network element determines first information for the second network element, where the first information is related to service experience and/or load of the network slice on the second network element.

In this embodiment of the present application, the first network element determines, for the second network element, the first maximum number of terminals or the first maximum number of sessions of the network slice on the second network element.

Exemplarily, the first network element may determine the first maximum number of terminals or the first maximum number of terminals for the second network element according to the service experience and/or load of the network slice on the second network element and the maximum number of terminals or the maximum number of sessions of the network slice Maximum number of sessions. For example, when the first network element determines that it is necessary to increase the second maximum number of terminals or the second maximum number of sessions on the second network element according to the service experience and/or load of the network slice on the second network element, it may be the second network element Increase the number of terminals or sessions that do not exceed the maximum number of terminals or the maximum number of sessions for the network slice.

Exemplarily, the first network element may determine the first maximum number for the second network element according to the service experience and/or load of the network slice on the second network element and the predicted number of terminals or the predicted number of sessions of the network slice on the second network element. The number of terminals or the first maximum number of sessions. For example, when the first network element determines that it is necessary to reduce the second maximum number of terminals or the second maximum number of sessions on the second network element according to the service experience and/or load of the network slice on the second network element, it may be the second network element Reduce the number of terminals or sessions to a lower number of terminals or sessions than the predicted number of terminals or predicted sessions of the network slice on the second network element.

Exemplarily, the first network element determines the first maximum terminal for the second network element according to the service experience and/or load of the network slice on the second network element and the actual number of terminals or actual sessions of the network slice on the second network element. number or the first maximum number of sessions. For example, when the first network element determines that it is necessary to reduce the second maximum number of terminals or the second maximum number of sessions on the second network element according to the service experience and/or load of the network slice on the second network element, it may be the second network element The number of terminals or sessions is reduced to a lower number of terminals or sessions than the actual number of terminals or sessions of the network slice on the second network element.

Exemplarily, the first network element may be based on the service experience and/or load of the network slice on the second network element, the predicted number of terminals or the predicted number of sessions of the network slice on the second network element, and the actual number of network slices on the second network element. The number of terminals or the actual number of sessions, for determining the first maximum number of terminals or the first maximum number of sessions for the second network element. For example, when the first network element determines that it is necessary to increase the second maximum number of terminals or the second maximum number of sessions on the second network element according to the service experience and/or load of the network slice on the second network element, it may be the second network element Increase the number of terminals or sessions to be greater than the actual number of terminals or actual sessions of the network slice on the second network element, and not exceeding the number of terminals or sessions predicted for the network slice on the second network element.

Exemplarily, the first network element is based on the service experience and/or load of the network slice on the second network element, the actual number of terminals or actual sessions of the network slice on the second network element, and the maximum number of terminals or the maximum number of sessions in the network slice. , and determine the first maximum number of terminals or the first maximum number of sessions for the second network element. For example, when the first network element determines that it is necessary to increase the second maximum number of terminals or the second maximum number of sessions on the second network element according to the service experience and/or load of the network slice on the second network element, it may be the second network element Increase to the number of terminals or sessions that is greater than the actual number of terminals or sessions of the network slice on the second network element, and does not exceed the maximum number of terminals or the maximum number of sessions of the network slice.

S703: The first network element sends the first information to the second network element.

In this embodiment of the present application, the specific implementation manner of the first network element sending the first information to the second network element is not limited.

S704: The second network element processes the session creation request from the terminal device and/or the request for the terminal to register with the slice according to the first information.

In this embodiment of the present application, the second network element processes a session creation request from a terminal device and/or a request for a terminal to register with the slice according to the first maximum number of terminals or the first maximum number of sessions in the network slice on the second network element.

In a specific implementation manner, the first network element is a UDR network element or a UDM network element, the second network element is a PCF network element, and the data analysis function network element is an NWDAF network element. The UDR network element or the UDM network element may acquire the service experience and/or load of the network slice on one or more PCF network elements in the network slice from the NWDAF network element. The UDR network element or the UDM network element can be based on the service experience and/or load of the network slice on one or more PCF network elements in the network slice, the actual number of terminals or actual sessions on the network slice on one or more PCF network elements in the network slice The number and the maximum number of terminals or the maximum number of sessions of the network slice determine the first maximum number of terminals or the first maximum number of sessions adapted to the PCF network element.

For example, the UDR network element or UDM network element may initially allocate the second maximum terminal number or the second maximum session number of the initial network slice to the PCF network element randomly or according to a certain rule (for example, average), and then the UDR network element or UDM network element The network element can predict the number of terminals or sessions in the network slice on one or more PCF network elements in the network slice according to the service experience and/or load of the network slice on one or more PCF network elements in the network slice, The actual number of terminals or sessions of the network slice on one or more PCF network elements, the maximum number of terminals or the maximum number of sessions of the network slice, etc., adjust the second maximum number of terminals or the second maximum number of sessions of the network slice on the PCF network element , obtain the first maximum number of terminals or the first maximum number of sessions suitable for the requirements of network slicing on the PCF network element, and the PCF network element processes the session creation request and/or the first maximum number of sessions from the terminal device according to the first maximum number of terminals or the first maximum number of sessions. A request for an endpoint to register with this slice. Optionally, the above-mentioned UDR network element or UDM network element can be replaced by an NSSF network element, and the above-mentioned PCF network element can be replaced by an AMF network element.

On the basis of the embodiment corresponding to FIG. 6 , FIG. 8 is a schematic flowchart of a communication method provided by an embodiment of the present application, including the following steps:

S801: The second network element acquires the service experience and/or load of the network slice on one or more second network elements in the network slice from the data analysis function network element.

In the embodiment of the present application, the service experience and/or load of the network slice on one or more second network elements in the network slice is obtained by inference from the network element with the data analysis function according to the service experience model, network data and network management data.

The second network element may obtain the service experience and/or load of the network slice on one or more second network elements in the network slice from the data analysis function network element, and then may determine whether to update the second maximum value of the network slice on the second network element. The number of terminals or the second maximum number of sessions. For example, when the second network element determines that the second maximum number of terminals or the second maximum number of sessions of the network slice on the second network element needs to be updated, S802 may be performed.

S802: The second network element sends a third request to the first network element, where the third request is determined by the second network element according to service experience and/or load of the network slice on one or more second network elements in the network slice.

In this embodiment of the present application, the third request may include indication information for instructing to reduce the second maximum number of terminals or the second maximum number of sessions in the network slice on the second network element, or for instructing to increase the network slice on the second network element The indication information of the second maximum number of terminals or the second maximum number of sessions.

Exemplarily, in the case that the service experience of the network slice on the second network element is less than the service experience threshold of the network slice or the load of the network slice on the second network element is greater than the load threshold of the network slice, the third request is used to request to reduce the The second maximum number of terminals or the second maximum number of sessions for network slices on the two network elements.

Exemplarily, when the service experience of the network slice on the second network element is greater than the service experience threshold of the network slice or the load of the network slice on the second network element is less than the load threshold of the network slice, the third request is used to increase the second network slice. The second maximum number of terminals or the second maximum number of sessions of the network slice on the network element.

Exemplarily, when the service experience of the network slice on the second network element is equal to the service experience threshold of the network slice or the load of the network slice on the second network element is equal to the load threshold of the network slice, the third request is used to keep the second network slice. The second maximum number of terminals or the second maximum number of sessions of the network slice on the network element remains unchanged.

S803: The first network element determines first information for the second network element, where the first information is related to service experience and/or load of the network slice on the second network element.

S804: The first network element sends the first information to the second network element.

S805: The second network element processes the session creation request from the terminal device and/or the request for the terminal to register with the slice according to the first information.

In this embodiment of the present application, for S803-S805, reference may be made to the description of S702-S704 in the embodiment corresponding to FIG. 7 , which is not repeated here. Different from the embodiment of FIG. 7 , in the embodiment of FIG. 8 , the NWDAF network element sends the service experience and/or load related information of the network slice on one or more second network elements in the network slice to the second network element. .

In a specific implementation manner, the first network element is a UDR network element or a UDM network element, the second network element is a PCF network element, and the data analysis function network element is an NWDAF network element. The PCF network element may acquire the service experience and/or load of the network slice on one or more PCF network elements in the network slice from the NWDAF network element. The PCF network element can be based on the service experience and/or load of the network slice on one or more PCF network elements in the network slice, the actual number of terminals or actual sessions on the network slice on one or more PCF network elements in the network slice, and the network slice. determine the first maximum number of terminals or the first maximum number of sessions adapted to the PCF network element, and then request the UDR network element or the UDM network element for the first maximum number of terminals or the first maximum number of number of sessions. For example, the UDR network element or the UDM network element may initially allocate the second maximum number of terminals or the second maximum number of sessions to the PCF network element randomly or according to a certain rule (for example, average). The service experience and/or load of the network slice on one or more PCF network elements, the predicted number of terminals or the predicted number of sessions on the network slice on one or more PCF network elements in the network slice, and the one or more PCF network elements in the network slice The actual number of terminals or sessions in the network slice, the maximum number of terminals or the maximum number of sessions in the network slice, etc., determine whether to adjust the second maximum number of terminals or the second maximum number of sessions. If necessary, the PCF network element can report to the UDR The network element or the UDM network element requests to adjust the second maximum number of terminals or the second maximum number of sessions to obtain the first maximum number of terminals or the first maximum number of sessions that meet the requirements of network slicing on the PCF network element. The number of terminals or the first maximum number of sessions handles session creation requests from terminal devices and/or requests for terminals to register with the slice. Optionally, the above-mentioned UDR network elements or UDM network elements may be replaced by NSSF network elements, and the above-mentioned PCF network elements may be replaced by SMF network elements.

On the basis of the embodiment corresponding to FIG. 6 or FIG. 7 , in a possible implementation manner, the first network element is a UDR network element or a UDM network element, the second network element is a PCF network element, and a data analysis function network element Taking the NWDAF network element as an example, the UDR network element or UDM network element receives the identifier of the PCF network element sent from the OAM device and receives the actual number of terminals or actual sessions on the network slice on the PCF network element sent from the PCF network element. The element or the UDM network element subscribes the service experience and/or load of the network slice on one or more PCF network elements in the network slice to the NWDAF network element according to the identification of the PCF network element. Exemplarily, FIG. 9 shows a specific schematic diagram of communication.

Exemplarily, the communication method shown in FIG. 9 may include the following steps:

S901: The UDR network element or the UDM network element sends a second request to the OAM device.

In this embodiment of the present application, the second request is used to request the identification of the PCF network element, and the second request includes one or more of the following information: identification of the network slice, area information covered by the network slice, and time information of the network slice service.

S902: The OAM device sends the identifier of the PCF network element to the UDR network element or the UDM network element.

Exemplarily, for a network slice identified by an S-NSSAI, the OAM device initially creates a network slice, and the creation process includes preparation of network resources such as an access network, a transmission network, and a core network. Optionally, in this process, the OAM device may determine the identity of the PCF network element on the core network side in the S-NSSAI according to the slicing network topology.

S903: The UDR network element or the UDM network element receives the maximum number of terminals or the maximum number of sessions of the network slice sent from the OAM device.

In this embodiment of the present application, the OAM device may determine the maximum number of terminals or the maximum number of sessions in the network slice according to historical experience.

Exemplarily, the operator or the network management may allocate the same maximum number of terminals or maximum number of sessions as the previous number of network slices according to the network slice allocation record.

Optionally, step S902 and step S903 may be combined, that is, in step S901, the UDR network element or the UDM network element may simultaneously request the OAM device which PCF network elements and PCF network elements are in the network slice identified by the S-NSSAI. What is the maximum number of terminals or maximum number of sessions on the network slice.

S904: The UDR network element or the UDM network element sends the third information to the PCF network element.

In this embodiment of the present application, the third information includes the second maximum number of terminals or the second maximum number of sessions, and the second maximum number of terminals or the second maximum number of sessions is determined according to the maximum number of terminals or the maximum number of sessions in the network slice. Optionally, the second maximum number of terminals or the second maximum number of sessions may be the maximum number of terminals or the maximum number of sessions obtained by random allocation or a specific allocation rule (for example, an average allocation method). In a possible way of understanding, the second maximum number of terminals or the second maximum number of sessions may be the initial maximum number of terminals or the initial maximum number of sessions allocated by the UDR network element or the UDM network element to the PCF network element.

S905: The NWDAF network element trains the service experience model according to the data provided by the NF network element.

In the embodiment of the present application, the slice user continuously accesses the network slice corresponding to the S-NSSAI, and when creating a PDU session in the network slice, the service flow corresponding to the service can be created through the Application ID identifier, and subsequent NWDAF network elements can be based on the service experience. The model and the network data and network management data corresponding to the service flow can be inferred to obtain the service experience of the service flow, or the service experience of the service flow in the entire S-NSSAI over a period of time can be evaluated to obtain the service experience of the network slice on the PCF network element. .

In detail, the process of training the service experience model by the NWDAF network element according to the data can be described with reference to FIG. 5 , and details are not repeated here.

S906: The UDR network element or the UDM network element sends a first request to the NWDAF network element.

In this embodiment of the present application, the UDR network element or the UDM network element sends a first request for requesting second information to the NWDAF network element, where the second information includes the service experience and service experience of the network slice on one or more PCF network elements in the network slice. / or load.

Exemplarily, the first request may be carried in the Nnwdaf_AnalyticsSubscription_Subscribe message, for example, the message carries one or more of the following: the identifier of the PCF network element, the identifier of the network slice, and the data analysis identifier corresponding to the service experience of the network slice. , the data analysis identifier corresponding to the load of the network slice, the area information that the PCF network element serves the network slice, or the time information that the PCF network element serves the network slice. The number of PCF network elements may be one or more.

S907: The NWDAF network element sends the second information to the UDR network element or the UDM network element.

In this embodiment of the present application, the NWDAF network element sends the second information to the UDR network element or the UDM network element according to the first request, where the second information includes the service experience and/or load of the network slice on one or more PCF network elements in the network slice .

Exemplarily, the service experience and/or load of the network slice on one or more PCF network elements in the network slice obtained by the NWDAF network element according to the service experience model and the network data and network management data corresponding to the service flow can be periodically reported to the UDR. The network element or the UDM network element sends the Nnwdaf_AnalyticsSubscription_Notify message, and the message carries the service experience and/or load of the network slice on one or more PCF network elements in the network slice.

S908: The UDR network element or the UDM network element receives the predicted number of terminals or the predicted number of sessions on the network slice on the PCF network element sent from the NWDAF network element.

In the embodiment of the present application, the predicted number of terminals or the predicted number of sessions of the network slice on the PCF network element is used for the UDR network element or the UDM network element to determine the first information.

Optionally, step S907 and step S908 may be combined, that is, in step S906, the UDR network element or the UDM network element may simultaneously request the NWDAF network element for the service experience and/or load of the network slice on the PCF network element, and the PCF network element. What is the predicted number of terminals or predicted sessions on the network slice.

S909: The UDR network element or the UDM network element receives the actual number of terminals or the actual number of sessions of the network slice on the PCF network element sent from the PCF network element.

In the embodiment of the present application, the actual number of terminals or the actual number of sessions of the network slice on the PCF network element is used for the UDR network element or the UDM network element to determine the first information.

S910: The UDR network element or the UDM network element determines the first information for the PCF network element.

In this embodiment of the present application, the first information includes the first maximum number of terminals or the first maximum number of sessions in the network slice on the PCF network element, the first information is related to the service experience and/or load of the network slice on the PCF network element, and the UDR network The element or the UDM network element determines, for the PCF network element, the first maximum number of terminals or the first maximum number of sessions of the network slice on the PCF network element.

In the embodiment of this application, the UDR network element or the UDM network element receives the maximum number of terminals or the maximum number of sessions of the network slice sent from the OAM device, and the UDR network element or the UDM network element according to the maximum number of terminals or the maximum number of sessions of the network slice is PCF The network element allocates the second maximum number of terminals or the second maximum number of sessions for the initial network slice.

In this embodiment of the present application, the decision of the UDR network element or the UDM network element to reduce and/or increase the number of the first maximum number of terminals or the first maximum number of sessions in the network slice on the PCF network element may be determined by the operator, or may be determined by the dichotomy method. increase and/or decrease.

Exemplarily, the UDR network element or the UDM network element finds that the service experience of the network slice on the PCF network element is greater than the service experience threshold of the network slice, first adds 20,000 users, and then measures and finds that the service experience of the network slice on the PCF network element is smaller than that of the network slice. The service experience threshold is reduced by 10,000 users, and after measurement, it is found that the service experience of the network slice on the PCF network element is greater than the service experience threshold of the network slice, so 5,000 users are added, and the cycle is repeated, and finally the first maximum number of terminals on the network slice on the PCF is determined. Or the first maximum number of sessions.

Exemplarily, the UDR network element or the UDM network element finds that the service experience of the network slice on the PCF network element is greater than the service experience threshold of the network slice, first adds 20,000 users, and then measures the actual number of terminals or actual sessions of the network slice on the PCF network element. The number of users is 15,000, so the number of users is reduced by 5,000, and the cycle repeats. The UDR network element or UDM network element can determine the first maximum number of terminals or the first maximum number of terminals in the network slice on the PCF network element according to the actual number of terminals or the actual number of sessions in the network slice on the PCF network element. Maximum number of sessions.

In a possible implementation manner, the UDR network element or the UDM network element may be determined according to the service experience and/or load of the network slice on one or more PCF network elements in the network slice and the maximum number of terminals or the maximum number of sessions in the network slice. The first maximum number of terminals or the first maximum number of sessions of the network slice on the PCF network element.

Exemplarily, the second maximum number of terminals or the second maximum number of sessions in the network slice initially allocated by the UDR network element or the UDM network element to the PCF 1 network element is 100,000, after which the UDR network element or the UDM network element discovers the PCF 1 network element. The service experience of the network slice on the element is greater than the service experience threshold of the network slice. The UDR network element or UDM network element decides to increase the second maximum number of terminals or the second maximum number of sessions of the PCF 1 network element by 100,000. At this time, the PCF 1 network element The first maximum number of terminals or the first maximum number of sessions of the network slice of Yuan is 200,000. In a possible implementation manner, in the above process, if the maximum number of terminals or the maximum number of sessions in the network slice is 1 million, and the total number of terminals or sessions on other PCF network elements except PCF 1 network element is 920,000, then The first maximum number of terminals or the first maximum number of sessions may be determined for the network slice of the PCF 1 network element to be 180,000, so as to avoid exceeding the maximum number of terminals or the maximum number of sessions of the network slice.

In a possible implementation manner, the UDR network element or the UDM network element may be based on the service experience and/or load of the network slice on one or more PCF network elements in the network slice and the predicted terminal count or prediction of the network slice on the PCF network element. The number of sessions, which determines the first maximum number of terminals or the first maximum number of sessions in the network slice on the PCF network element.

Exemplarily, the second maximum number of terminals or the second maximum number of sessions of the network slice initially allocated by the UDR network element or the UDM network element to the PCF 1 network element is 300,000, after which the UDR network element or the UDM network element discovers the PCF 1 network element. If the service experience of the network slice on the element is less than the service experience threshold of the network slice, the UDR network element or UDM network element decides to reduce the second maximum number of terminals or the second maximum number of sessions of the PCF 1 network element. The predicted number of terminals or the predicted number of sessions for the slice is 200,000. Therefore, the UDR network element or the UDM network element can determine that the first maximum number of terminals or the first maximum number of sessions of the PCF 1 network element is 160,000 (that is, less than the PCF 1 network element). If the predicted number of terminals or predicted sessions on PCF 1 is 200,000, the service experience and/or load of network slicing on PCF 1 cannot meet the requirements. , so the second maximum number of terminals or the second maximum number of sessions can be greatly reduced. Compared with the usual method of reducing the second maximum number of terminals or the second maximum number of sessions, a fixed value (such as 20,000) is reduced each time. , the embodiment of the present application can quickly allocate a suitable first maximum number of terminals or a first maximum number of sessions to the second network element in combination with the predicted number of terminals or the number of predicted sessions of the network slice on the second network element.

In a possible implementation manner, the UDR network element or the UDM network element may be based on the service experience and/or load of the network slice on one or more PCF network elements in the network slice and the actual number of terminals or actual number of network slices on the PCF network element. The number of sessions, which determines the first maximum number of terminals or the first maximum number of sessions in the network slice on the PCF network element.

Exemplarily, the second maximum number of terminals or the second maximum number of sessions in the network slice initially allocated by the UDR network element or the UDM network element to the PCF 1 network element is 200,000, after which the UDR network element or the UDM network element discovers the PCF 1 network element. If the service experience of the network slice on the element is less than the service experience threshold of the network slice, the UDR network element or UDM network element decides to reduce the second maximum number of terminals or the second maximum number of sessions of the PCF 1 network element. The actual number of terminals or actual sessions of the slice is 110,000. Therefore, the UDR network element or the UDM network element can determine the first maximum number of terminals or the first maximum number of sessions of the PCF 1 network element to be 100,000 (that is, less than the PCF 1 network element). The actual number of terminals or the actual number of sessions on the PCF 1 network element), because when the actual number of terminals or the actual number of sessions on the PCF 1 network element is 110,000, the service experience and/or load of the network slice on the PCF 1 network element can no longer meet the requirements. , so the second maximum number of terminals or the second maximum number of sessions can be greatly reduced. Compared with the usual method of reducing the second maximum number of terminals or the second maximum number of sessions, a fixed value (such as 10,000) is reduced each time. , the embodiment of the present application can quickly allocate an appropriate first maximum number of terminals or first maximum number of sessions to the second network element in combination with the actual number of terminals or actual number of sessions in the network slice on the second network element.

In a possible implementation manner, the UDR network element or the UDM network element may be based on the service experience and/or load of the network slice on one or more PCF network elements in the network slice, and the predicted terminal count or prediction of the network slice on the PCF network element. The number of sessions and the actual number of terminals or actual sessions of the network slice on the PCF network element determine the first maximum number of terminals or the first maximum number of sessions of the network slice on the PCF network element.

Exemplarily, the second maximum number of terminals or the second maximum number of sessions initially allocated by the UDR network element or the UDM network element to the PCF 1 network element is 300,000, and the predicted number of terminals or the predicted number of sessions of the PCF 1 network element is 400,000, The actual number of terminals or actual sessions of the PCF1 network element is 200,000. After that, the UDR network element or the UDM network element finds that the service experience of the network slice on the PCF 1 network element is greater than the service experience threshold of the network slice, and the UDR network element or the UDM network element decides to increase the second maximum number of terminals or the second maximum number of terminals on the PCF 1 network element. The maximum number of sessions, therefore, the UDR network element or the UDM network element can decide that the first maximum number of terminals or the first maximum number of sessions of the PCF 1 network element is 350,000 (that is, greater than the actual number of terminals or the actual number of sessions of the PCF 1 network element and less than the predicted number of terminals or predicted sessions of the PCF 1 network element).

In a possible implementation manner, the UDR network element or the UDM network element may be based on the service experience and/or load of the network slice on one or more PCF network elements in the network slice, and the predicted terminal count or prediction of the network slice on the PCF network element. The number of sessions, the actual number of terminals or actual sessions in the network slice on the PCF network element, and the maximum number of terminals or the maximum number of sessions in the network slice determine the first maximum number of terminals or the first maximum number of sessions in the network slice on the PCF network element.

Exemplarily, the second maximum number of terminals or the second maximum number of sessions initially allocated by the UDR network element or the UDM network element to the PCF 1 network element is 200,000, and the predicted number of terminals or the predicted number of sessions of the PCF 1 network element is 190,000, The actual number of terminals or sessions of the PCF1 NE is 180,000, and the maximum number of terminals or sessions of the network slice in the UDR NE or UDM NE is 1 million. After that, the UDR network element or the UDM network element finds that the service experience of the network slice on the PCF 1 network element is greater than the service experience threshold of the network slice, and the UDR network element or the UDM network element decides to increase the second maximum number of terminals or the second maximum number of terminals on the PCF 1 network element. The maximum number of sessions. Since the predicted number of terminals or the predicted number of sessions of the PCF 1 network element and the actual number of terminals or the actual number of sessions of the PCF 1 network element are close to the second largest number of terminals or the second largest number of sessions, it can be considered that the If the network status is good, you can increase the number of terminals or sessions for PCF 1 network element, for example, increase the number of terminals or sessions by 100,000. However, due to the maximum number of terminals or sessions in the network slice of the UDR network element or UDM network element The number is 1 million. If the total number of terminals or sessions of other network elements in the network slice has reached 720,000, in order not to exceed the maximum number of terminals or the maximum number of sessions in the network slice is 1 million, the first maximum number of terminals can be determined. Or the first maximum number of sessions is 280,000.

S911: The UDR network element or the UDM network element sends the first information to the PCF network element.

Exemplarily, the UDR network element or the UDM network element sends an Npcf_SliceQuotaAssignment_Update message to the PCF network element, where the message carries the S-NSSAI and the first maximum number of terminals or the first maximum number of sessions in the network slice on the PCF network element.

S912: The PCF network element processes the session creation request from the terminal device and/or the request for the terminal to register with the slice according to the first information.

In this embodiment of the present application, for the determination of the first maximum number of terminals or the first maximum number of sessions, reference may be made to the description recorded in S910, which will not be repeated here. The PCF network element receives the first maximum number of terminals or the first maximum number of sessions on the network slice on the PCF network element sent from the UDR network element or the UDM network element. A session creation request from the terminal device and/or a request for the terminal to register with the slice.

S913: The UDR network element or the UDM network element determines whether the maximum number of terminals or the maximum number of sessions configured by the OAM device is reasonable.

In the embodiment of the present application, the UDR network element or the UDM network element determines whether the maximum number of terminals or the maximum number of sessions configured by the OAM device is reasonable according to the first maximum number of terminals or the first maximum number of sessions.

Exemplarily, the UDR network element or the UDM network element determines the total number of terminals or sessions of the network slice on the PCF network element according to the first maximum number of terminals or the first maximum number of sessions of the network slice on the PCF network element, and the UDR network element or The UDM network element compares the total number of terminals or sessions in the network slice on the PCF network element with the maximum number of terminals or the maximum number of sessions configured on the OAM device, and the total number of terminals or sessions in the network slice on the PCF network element is less than or equal to If it is equal to the maximum number of terminals or the maximum number of sessions configured on the OAM device, the UDR network element or UDM network element determines that the maximum number of terminals or the maximum number of sessions configured on the OAM device is reasonable; or, the total number of terminals in the network slice on the PCF network element If the number of terminals or sessions is greater than the maximum number of terminals or sessions configured by the OAM device, it is unreasonable for the UDR network element or the UDM network element to determine the maximum number of terminals or sessions configured by the OAM device.

S914: The OAM device sends the updated maximum number of terminals or the maximum number of sessions to the UDR network element or the UDM network element.

In this embodiment of the present application, when the UDR network element or the UDM network element determines that the maximum number of terminals or the maximum number of sessions configured by the OAM device is unreasonable, the UDR network element or the UDM network element may negotiate with the OAM device to allocate a new maximum number of terminals Or the maximum number of sessions, the OAM device returns the allocated new maximum number of terminals or the maximum number of sessions to the UDR network element or the UDM network element; or, the UDR network element or the UDM network element determines the maximum number of terminals or the maximum number of sessions configured by the OAM device If the number is reasonable, the UDR network element or the UDM network element may allocate a new maximum number of terminals or a new maximum number of sessions without negotiating with the OAM device.

Exemplarily, the UDR network element or the UDM network element may send a Configuration Update Request message to the OAM device, and the message may carry the S-NSSAI, the maximum number of terminals or the maximum number of sessions configured by the OAM device exceeds or does not exceed the indication and the UDR network element or The UDM network element determines the maximum number of terminals or the maximum number of sessions that can be accommodated in the network slice, and the OAM device can return the updated maximum number of terminals or the maximum number of sessions to the UDR network element or UDM network element according to the message.

The embodiments of the present application take an example that the first network element is a UDR network element or a UDM network element, and the second network element is a PCF network element for illustrative description, which does not constitute a limitation on the first network element and the second network element. In this embodiment of the present application, S907-S911 may be repeatedly performed until the UDR network element or the UDM network element determines the first maximum number of terminals or the first maximum number of sessions in the network slice on the PCF network element.

To sum up, the UDR network element or the UDM network element receives the identifier of the PCF network element sent from the OAM device, and the UDR network element or the UDM network element can obtain one or more network slices from the NWDAF network element according to the identifier of the PCF network element. The service experience and/or load of the network slice on the PCF network element; in addition, the UDR network element or the UDM network element receives the actual number of terminals or actual sessions on the network slice on the PCF network element sent from the PCF network element and receives from the NWDAF network element. The number of predicted terminals or predicted sessions sent; the UDR network element or UDM network element is based on the service experience and/or load of the network slice on the PCF network element, the predicted number of terminals or the predicted number of sessions on the network slice on the PCF network element, the PCF network element The actual number of terminals or sessions on the network slice and the maximum number of terminals or the maximum number of sessions on the network slice are used to determine the first maximum number of terminals or the first maximum number of sessions on the network slice on the PCF network element. The first maximum number of terminals or the first maximum number of sessions process the session creation request from the terminal device or the request for the terminal to register to the slice, and avoid the terminal connection caused by the unreasonable setting of the first maximum number of terminals or the first maximum number of sessions. Incoming and/or session creation failures, network slicing resource waste, etc.

On the basis of the embodiment corresponding to FIG. 6 or FIG. 7 , in a possible implementation manner, the first network element is a UDR network element or a UDM network element, the second network element is a PCF network element, and a data analysis function network element Taking the NWDAF network element as an example, the UDR network element or the UDM network element receives the actual number of terminals or actual sessions on the network slice on the PCF network element sent from the NWDAF network element, and receives the identifier of the PCF network element sent from the OAM device. The element or the UDM network element subscribes the service experience and/or load of the network slice on one or more PCF network elements in the network slice to the NWDAF network element according to the identification of the PCF network element. Exemplarily, FIG. 10 shows a specific schematic diagram of communication.

Exemplarily, the communication method shown in FIG. 10 may include the following steps:

S1001: The UDR network element or the UDM network element sends a second request to the OAM device.

S1002: The OAM device sends the identifier of the PCF network element to the UDR network element or the UDM network element.

S1003: The UDR network element or the UDM network element receives the maximum number of terminals or the maximum number of sessions of the network slice sent from the OAM device.

S1004: The UDR network element or the UDM network element sends the third information to the PCF network element.

S1005: The NWDAF network element trains the service experience model according to the data provided by the NF network element.

S1006: The UDR network element or the UDM network element sends a first request to the NWDAF network element.

S1007: The NWDAF network element sends the second information to the UDR network element or the UDM network element.

S1008: The UDR network element or the UDM network element receives the predicted number of terminals or the predicted number of sessions and the actual number of terminals or the actual number of sessions on the network slice on the PCF network element sent from the NWDAF network element.

S1009: The UDR network element or the UDM network element determines the first information for the PCF network element.

S1010: The UDR network element or the UDM network element sends the first information to the PCF network element.

S1011: The PCF network element processes the session creation request from the terminal device and/or the request for the terminal to register with the slice according to the first information.

S1012: The UDR network element or the UDM network element determines whether the maximum number of terminals or the maximum number of sessions configured by the OAM device is reasonable.

S1013: The OAM device sends the updated maximum number of terminals or the maximum number of sessions to the UDR network element or the UDM network element.

The embodiments of the present application take an example that the first network element is a UDR network element or a UDM network element, and the second network element is a PCF network element for illustrative description, which does not constitute a limitation on the first network element and the second network element. In this embodiment of the present application, S1007-S1010 may be repeatedly performed until the UDR network element or the UDM network element determines the first maximum number of terminals or the first maximum number of sessions in the network slice on the PCF network element. S1001-S1007 may refer to the description of S901-S907 of the embodiment corresponding to FIG. 9 , and S1009-S1013 may refer to the description of S910-S914 of the embodiment corresponding to FIG. 9 , which will not be repeated here. Different from the embodiment of FIG. 9 , in the embodiment corresponding to FIG. 10 , the UDR network element or the UDM network element receives the actual number of terminals or actual sessions of the network slice on the PCF network element sent from the NWDAF network element.

To sum up, the UDR network element or the UDM network element receives the actual number of terminals or actual sessions and the predicted number of terminals or the predicted number of sessions on the network slice on the PCF network element sent from the NWDAF network element. Element receives the identifier of the PCF network element sent from the OAM device, and the UDR network element or UDM network element can obtain the service experience and/or service experience of the network slice on one or more PCF network elements in the network slice from the NWDAF network element according to the identifier of the PCF network element or load, the UDR NE or UDM NE is based on the service experience and/or load of the network slice on the PCF NE, the predicted number of terminals or sessions of the network slice on the PCF NE, and the actual number of terminals in the network slice on the PCF NE Or the actual number of sessions and the maximum number of terminals or the maximum number of sessions in the network slice to determine the first maximum number of terminals or the first maximum number of sessions in the network slice on the PCF network element. A maximum number of sessions to process session creation requests from terminal devices or requests for terminals to register to the slice, to avoid terminal access and/or session creation failures caused by unreasonable settings of the first maximum number of terminals or the first maximum number of sessions , network slicing resource waste, etc.

On the basis of the embodiment corresponding to FIG. 6 or FIG. 7 , in a possible implementation manner, the first network element is a UDR network element or a UDM network element, the second network element is a PCF network element, and a data analysis function network element Taking the NWDAF network element as an example, the UDR network element or UDM network element receives the actual number of terminals or actual sessions on the network slice on the PCF network element sent from the PCF network element, and receives the identifier of the PCF network element sent from the NWDAF network element, UDR The network element or the UDM network element subscribes the service experience and/or load of the network slice on one or more PCF network elements in the network slice to the NWDAF network element according to the identification of the PCF network element. Exemplarily, FIG. 11 shows a specific schematic diagram of communication.

Exemplarily, the communication method shown in FIG. 11 may include the following steps:

S1101: The UDR network element or the UDM network element receives the maximum number of terminals or the maximum number of sessions of the network slice sent from the OAM device.

In this embodiment of the present application, the OAM device may determine the maximum number of terminals or the maximum number of sessions in the network slice according to historical experience.

Exemplarily, the operator or the network management may allocate the same maximum number of terminals or maximum number of sessions as the previous number of network slices according to the network slice allocation record.

In this embodiment of the present application, the maximum number of terminals or the maximum number of sessions is used to determine the second maximum number of terminals or the second maximum number of sessions of the network slice on the PCF network element.

S1102: The UDR network element or the UDM network element sends a second request to the NWDAF network element.

In this embodiment of the present application, the second request is used to request the identification of the PCF network element, and the second request includes one or more of the following information: identification of the network slice, area information covered by the network slice, and time information of the network slice service.

S1103: The NWDAF network element sends the identifier of the PCF network element to the UDR network element or the UDM network element.

In the embodiment of the present application, the NWDAF network element may determine the coverage area of the S-NSSAI according to the AMF network element, and then the NWDAF network element may determine the identity of the PCF network element through the network repository function (NRF) network element according to the coverage area , the NWDAF network element sends the determined identifier of the PCF network element to the UDR network element or the UDM network element.

In the embodiment of the present application, the identifier of the PCF network element is used for the UDR network element or the UDM network element to obtain the service experience and/or load of the network slice on one or more PCF network elements in the network slice from the NWDAF network element.

S1104: The UDR network element or the UDM network element sends the third information to the PCF network element.

S1105: The NWDAF network element trains the service experience model according to the data provided by the NF network element.

S1106: The UDR network element or the UDM network element sends a first request to the NWDAF network element.

S1107: The NWDAF network element sends the second information to the UDR network element or the UDM network element.

S1108: The UDR network element or the UDM network element receives the predicted number of terminals or the predicted number of sessions on the network slice on the PCF network element sent from the NWDAF network element.

S1109: The UDR network element or the UDM network element receives the actual number of terminals or the actual number of sessions on the network slice on the PCF network element sent from the PCF network element.

S1110: The UDR network element or the UDM network element determines the first information.

S1111: The UDR network element or the UDM network element sends the first information to the PCF network element.

S1112: The PCF network element processes the session creation request from the terminal device and/or the request for the terminal to register with the slice according to the first information.

S1113: The UDR network element or the UDM network element determines whether the maximum number of terminals or the maximum number of sessions configured by the OAM device is reasonable.

S1114: The OAM device sends the updated maximum number of terminals or the maximum number of sessions to the UDR network element or the UDM network element.

The embodiments of the present application take an example that the first network element is a UDR network element or a UDM network element, and the second network element is a PCF network element for illustrative description, which does not constitute a limitation on the first network element and the second network element. In this embodiment of the present application, S1107-S1111 may be repeatedly performed until the UDR network element or the UDM network element determines the first maximum number of terminals or the first maximum number of sessions in the network slice on the PCF network element. For S1104-S1114, reference may be made to the description of S904-S914 in the embodiment corresponding to FIG. 9 , and details are not described here. Different from the embodiment in FIG. 9 , in the embodiment corresponding to FIG. 11 , the UDR network element or the UDM network element receives the identifier of the PCF network element sent from the NWDAF network element.

To sum up, the UDR network element or the UDM network element receives the identifier of the PCF network element sent from the NWDAF network element, and the UDR network element or the UDM network element can subscribe the NWDAF network element to one or more network slices according to the identifier of the PCF network element. The service experience and/or load of the network slice on each PCF network element; in addition, the UDR network element or UDM network element receives the actual number of terminals or the actual number of sessions on the network slice on the PCF network element sent from the PCF network element and receives data from the NWDAF network element. The predicted number of terminals or the predicted number of sessions sent by the network element; the UDR network element or UDM network element can be based on the service experience and/or load of the network slice on the PCF network element, the predicted number of terminals or the predicted number of sessions on the network slice on the PCF network element, the PCF network element The actual number of terminals or sessions of the network slice on the network element and the maximum number of terminals or the maximum number of sessions of the network slice are used to determine the first maximum number of terminals or the first maximum number of sessions of the network slice on the PCF network element. After that, the PCF network element Process the session creation request from the terminal device and/or the request for the terminal to register to the slice according to the first maximum number of terminals or the first maximum number of sessions, so as to avoid the unreasonable setting of the first maximum number of terminals or the first maximum number of sessions. the occurrence of terminal access and/or session creation failure, waste of network slice resources, etc.

On the basis of the embodiment corresponding to FIG. 6 or FIG. 7 , in a possible implementation manner, the first network element is a UDR network element or a UDM network element, the second network element is a PCF network element, and a data analysis function network element Taking the NWDAF network element as an example, the UDR network element or UDM network element receives the identifier of the PCF network element sent from the NWDAF network element and the actual number of terminals or actual sessions of the network slice on the PCF network element. The identity of the PCF network element subscribes to the NWDAF network element for the service experience and/or load of the network slice on one or more PCF network elements within the network slice. Exemplarily, FIG. 12 shows a specific schematic diagram of communication.

Exemplarily, the communication method shown in FIG. 12 may include the following steps:

S1201: The UDR network element or the UDM network element receives the maximum number of terminals or the maximum number of sessions of the network slice sent from the OAM device.

S1202: The UDR network element or the UDM network element sends a second request to the NWDAF network element.

S1203: The NWDAF network element sends the identifier of the PCF network element to the UDR network element or the UDM network element.

S1204: The UDR network element or the UDM network element sends the third information to the PCF network element.

S1205: The NWDAF network element trains the service experience model according to the data provided by the NF network element.

S1206: The UDR network element or the UDM network element sends a first request to the NWDAF network element.

S1207: The NWDAF network element sends the second information to the UDR network element or the UDM network element.

S1208: The UDR network element or the UDM network element receives the predicted number of terminals or the predicted number of sessions and the actual number of terminals or the actual number of sessions on the network slice on the PCF network element sent from the NWDAF network element.

S1209: The UDR network element or the UDM network element determines the first information.

S1210: The UDR network element or the UDM network element sends the first information to the PCF network element.

S1211: The PCF network element processes the session creation request from the terminal device and/or the request for the terminal to register with the slice according to the first information.

S1212: The UDR network element or the UDM network element determines whether the maximum number of terminals or the maximum number of sessions configured by the OAM device is reasonable.

S1213: The OAM device sends the updated maximum number of terminals or the maximum number of sessions to the UDR network element or the UDM network element.

The embodiments of the present application take an example that the first network element is a UDR network element or a UDM network element, and the second network element is a PCF network element for illustrative description, which does not constitute a limitation on the first network element and the second network element. In this embodiment of the present application, S1207-S1210 may be repeatedly performed until the UDR network element or the UDM network element determines the first maximum number of terminals or the first maximum number of sessions of the network slice on the PCF network element. S1201-S1203 can refer to the descriptions of S1101-S1103 in the embodiment corresponding to FIG. 11 , and S1204-S1213 can refer to the descriptions of S1004-S1013 in the embodiment corresponding to FIG. 10 , which will not be repeated here. Different from the embodiment in FIG. 10 , in the embodiment corresponding to FIG. 12 , the UDR network element or the UDM network element receives the identifier of the PCF network element sent from the NWDAF network element. Different from the embodiment of FIG. 11 , in the embodiment corresponding to FIG. 12 , the UDR network element or the UDM network element receives the actual number of terminals or actual sessions of the network slice on the PCF network element sent from the PCF network element.

To sum up, the UDR network element or UDM network element receives the actual number of terminals or actual sessions, the predicted number of terminals or predicted number of sessions, and the identifier of the PCF network element on the PCF network element sent from the NWDAF network element. NE or UDM NE can subscribe to the NWDAF NE for the service experience and/or load of the network slice on one or more PCF NEs in the network slice according to the identity of the PCF NE; the UDR NE or UDM NE can The service experience and/or load of the network slice, the predicted number of terminals or the predicted number of sessions of the network slice on the PCF network element, the actual number of terminals or the actual number of sessions of the network slice on the PCF network element, and the maximum number of terminals or the maximum number of sessions of the network slice to determine the first maximum number of terminals or the first maximum number of sessions in the network slice on the PCF network element, and then the PCF network element processes the session creation request and/or the first maximum number of sessions from the terminal device according to the first maximum number of terminals or the first maximum number of sessions. The request of the terminal to register to the slice can avoid the occurrence of terminal access and/or session creation failure, waste of network slice resources, etc. caused by the unreasonable setting of the first maximum terminal number or the first maximum session number.

On the basis of the embodiment corresponding to FIG. 6 or FIG. 8 , in a possible implementation manner, the first network element is a UDR network element or a UDM network element, the second network element is a PCF network element, and a data analysis function network element Taking the NWDAF network element as an example, the UDR network element or UDM network element receives the identification of the PCF network element sent from the OAM device, and the PCF network element subscribes to the NWDAF network element for the service experience of the network slice on one or more PCF network elements in the network slice. and/or load. Exemplarily, FIG. 13 shows a specific schematic diagram of communication.

Exemplarily, the communication method shown in FIG. 13 may include the following steps:

S1301: The UDR network element or the UDM network element sends a second request to the OAM device.

S1302: The OAM device sends the identifier of the PCF network element to the UDR network element or the UDM network element.

S1303: The UDR network element or the UDM network element receives the maximum number of terminals or the maximum number of sessions of the network slice sent from the OAM device.

S1304: The UDR network element or the UDM network element sends the third information to the PCF network element.

S1305: The NWDAF network element trains the service experience model according to the data provided by the NF network element.

S1306: The PCF network element sends a fourth request to the NWDAF network element.

In the embodiment of the present application, the fourth request is for the PCF network element to subscribe the NWDAF network element to the service experience and/or load of the network slice on one or more PCF network elements in the network slice.

Exemplarily, the PCF network element may send a Nnwdaf_AnalyticsSubscription_Subscribe message to the NWDAF network element, where the message carries the analysis identification number, S-NSSAI, and the identification of the PCF network element, and the analysis identification number includes service experience and/or slice load level.

S1307: The NWDAF network element sends the service experience and/or load of the network slice on one or more PCF network elements in the network slice to the PCF network element.

Exemplarily, the NWDAF network element may periodically send the Nnwdaf_AnalyticsSubscription_Notify message to the PCF network element, where the message carries the service experience and/or load of the network slice on one or more PCF network elements in the network slice.

S1308: The PCF network element sends a third request to the UDR network element or the UDM network element.

In the example of this application, the third request is used to update the second maximum number of terminals or the second maximum number of sessions in the network slice on the PCF network element, and the third request is for the PCF network element to access the network according to one or more PCF network elements in the network slice The slice's service experience and/or load is determined.

Exemplarily, the third request includes: indication information for instructing to reduce the second maximum number of terminals or the second maximum number of sessions in the network slice on the PCF network element, or for instructing to increase the second maximum number of the network slice on the PCF network element. The indication information of the number of terminals or the second maximum number of sessions, or the indication information used to indicate that the second maximum number of terminals or the second maximum number of sessions of the network slice on the PCF network element is kept unchanged.

Exemplarily, the third request is used to indicate that the service experience of the network slice on the PCF network element of the UDR network element or the UDM network element is smaller than the service experience threshold of the network slice or the load of the network slice on the PCF network element is greater than the load threshold of the network slice. In this case, the indication information of the second maximum number of terminals or the second maximum number of sessions of the network slice on the PCF network element is reduced.

Exemplarily, the third request is used to indicate that the service experience of the network slice of the UDR network element or the UDM network element on the PCF network element is greater than the service experience threshold of the network slice or that the load of the network slice on the PCF network element is less than the load threshold of the network slice. In this case, the indication information of the second maximum number of terminals or the second maximum number of sessions of the network slice on the PCF network element is added.

Exemplarily, the third request is used to indicate that the service experience of the network slice on the PCF network element of the UDR network element or the UDM network element is equal to the service experience threshold of the network slice or the load of the network slice on the PCF network element is equal to the load threshold of the network slice. In this case, the indication information that the second maximum number of terminals or the second maximum number of sessions of the network slice on the PCF network element remains unchanged.

In the example of this application, for the way in which the PCF network element determines to increase or decrease the second maximum number of terminals or the second maximum number of sessions in the network slice on the PCF network element, reference may be made to the UDR network element or UDM described in the embodiment corresponding to FIG. 9 . The manner in which the network element determines to increase or decrease the second maximum number of terminals or the second maximum number of sessions in the network slice on the PCF network element will not be repeated here.

S1309: The UDR network element or the UDM network element receives the predicted number of terminals or the predicted number of sessions on the network slice on the PCF network element sent from the NWDAF network element.

In this embodiment of the present application, the predicted number of terminals or the predicted number of sessions of the network slice on the PCF network element is used to instruct the UDR network element or the UDM network element to determine the first information.

S1310: The UDR network element or the UDM network element determines the first information for the PCF network element.

S1311: The UDR network element or the UDM network element sends the first information to the PCF network element.

S1312: The PCF network element processes the session creation request from the terminal device and/or the request for the terminal to register with the slice according to the first information.

S1313: The UDR network element or the UDM network element determines whether the maximum number of terminals or the maximum number of sessions configured by the OAM device is reasonable according to the first maximum number of terminals or the first maximum number of sessions.

S1314: The UDR network element or the UDM network element negotiates with the OAM device to allocate the new maximum number of terminals or the maximum number of sessions, and the OAM device returns the allocated new maximum number of terminals or the maximum number of sessions to the UDR network element or the UDM network element.

The embodiments of the present application take an example that the first network element is a UDR network element or a UDM network element, and the second network element is a PCF network element for illustrative description, which does not constitute a limitation on the first network element and the second network element. In this embodiment of the present application, S1307-S1311 may be repeatedly performed until the UDR network element or the UDM network element determines the first maximum number of terminals or the first maximum number of sessions in the network slice on the PCF network element. For S1301-S1305, reference may be made to the description of S901-S905 in the embodiment corresponding to FIG. 9, and for S1310-S1314, reference may be made to the description of S910-S914 in the embodiment corresponding to FIG. 9, which will not be repeated here. Different from the embodiment of FIG. 9 , in the embodiment corresponding to FIG. 11 , the PCF network element subscribes to the NWDAF network element for the service experience and/or load of the network slice on one or more PCF network elements in the network slice.

To sum up, the UDR network element or the UDM network element obtains the identifier of the PCF network element sent from the OAM device, and the UDR network element or the UDM network element can allocate the initial second maximum number of terminals to the PCF network element according to the identifier of the PCF network element. Or the second maximum number of sessions, then the PCF network element obtains the service experience and/or load of the network slice on one or more PCF network elements in the network slice from the NWDAF network element, and then the UDR network element or UDM network element according to the PCF network element. The service experience and/or load of the network slice on the element, the predicted number of terminals or the predicted number of sessions of the network slice on the PCF network element, the actual number of terminals or the actual number of sessions of the network slice on the PCF network element, and the maximum number of terminals or the maximum number of the network slice on the PCF network element The number of sessions is used to determine whether to adjust the second maximum number of terminals or the second maximum number of sessions. If adjustment is required, the PCF network element can request the UDR network element or the UDM network element to adjust the second maximum number of terminals or the second maximum number of sessions, and obtain The first maximum number of terminals or the first maximum number of sessions suitable for the requirements of network slicing on the PCF network element, after which the PCF network element processes the session creation request and/or the first maximum number of sessions from the terminal device according to the first maximum number of terminals or the first maximum number of sessions The request of the terminal to register to the slice can avoid the occurrence of terminal access and/or session creation failure, waste of network slice resources, etc. caused by the unreasonable setting of the first maximum terminal number or the first maximum session number.

On the basis of the embodiment corresponding to FIG. 6 or FIG. 8 , in a possible implementation manner, the first network element is a UDR network element or a UDM network element, the second network element is a PCF network element, and a data analysis function network element Taking the NWDAF network element as an example, the UDR network element or UDM network element receives the identifier of the PCF network element sent from the NWDAF network element, and the PCF network element subscribes to the NWDAF network element for the services of the network slice on one or more PCF network elements in the network slice. experience and/or load. Exemplarily, FIG. 14 shows a specific communication schematic diagram.

Exemplarily, the communication method shown in FIG. 14 may include the following steps:

S1401: The UDR network element or the UDM network element receives the maximum number of terminals or the maximum number of sessions of the network slice sent from the OAM device.

S1402: The UDR network element or the UDM network element sends a second request to the NWDAF network element.

S1403: The NWDAF network element sends the identifier of the PCF network element to the UDR network element or the UDM network element.

S1404: The UDR network element or the UDM network element sends the third information to the PCF network element.

S1405: The NWDAF network element trains the service experience model according to the data provided by the NF network element.

S1406: The PCF network element sends a fourth request to the NWDAF network element.

S1407: The NWDAF network element sends the service experience and/or load of the network slice on one or more PCF network elements in the network slice to the PCF network element.

S1408: The PCF network element sends a third request to the UDR network element or the UDM network element.

S1409: The UDR network element or the UDM network element receives the predicted number of terminals or the predicted number of sessions on the network slice on the PCF network element sent from the NWDAF network element.

S1410: The UDR network element or the UDM network element determines the first information for the PCF network element.

S1411: The UDR network element or the UDM network element sends the first information to the PCF network element.

S1412: The PCF network element processes the session creation request from the terminal device and/or the request for the terminal to register with the slice according to the first information.

S1413: The UDR network element or the UDM network element determines whether the maximum number of terminals or the maximum number of sessions configured by the OAM device is reasonable according to the first maximum number of terminals or the first maximum number of sessions.

S1414: The UDR network element or the UDM network element negotiates with the OAM device to allocate a new maximum number of terminals or a maximum number of sessions, and the OAM device returns the allocated new maximum number of terminals or the maximum number of sessions to the UDR network element or the UDM network element.

The embodiments of the present application take an example that the first network element is a UDR network element or a UDM network element, and the second network element is a PCF network element for illustrative description, which does not constitute a limitation on the first network element and the second network element. S1401-S1405 in this embodiment of the present application may refer to the descriptions of S1101-S1105 in the embodiment corresponding to FIG. 11 , and S1406-S1414 may correspond to the descriptions of S1306-S1314 in the embodiment of FIG. 13 , which will not be repeated here. Different from the embodiment of FIG. 13 , in the embodiment corresponding to FIG. 14 , the UDR network element or the UDM network element receives the identifier of the PCF network element sent from the NWDAF network element.

To sum up, the UDR network element or the UDM network element obtains the identifier of the PCF network element sent from the NWDAF network element, and the UDR network element or the UDM network element can initially allocate the second largest initial value to the PCF network element according to the identifier of the PCF network element. The number of terminals or the second maximum number of sessions, then, the PCF network element obtains the service experience and/or load of the network slice on one or more PCF network elements in the network slice from the NWDAF network element, and then the UDR network element or UDM network element according to The service experience and/or load of the network slice on the PCF network element, the predicted number of terminals or the predicted number of sessions of the network slice on the PCF network element, the actual number of terminals or the actual number of sessions of the network slice on the PCF network element, and the maximum number of terminals of the network slice Or the maximum number of sessions to determine whether to adjust the second maximum number of terminals or the second maximum number of sessions. If adjustment is required, the PCF network element can request the UDR network element or the UDM network element to adjust the second maximum number of terminals or the second maximum number of sessions. , obtain the first maximum number of terminals or the first maximum number of sessions that meet the requirements of network slicing on the PCF network element, and then the PCF network element processes the session creation request from the terminal device and the first maximum number of sessions according to the first maximum number of terminals or the first maximum number of sessions. /or a request for a terminal to register with the slice, to avoid the occurrence of terminal access and/or session creation failure, waste of network slice resources, etc. caused by unreasonable setting of the first maximum terminal number or the first maximum session number.

The methods of the embodiments of the present application have been described above with reference to FIG. 6 to FIG. 14 , and the following describes the communication apparatuses provided by the embodiments of the present application for executing the above methods. Those skilled in the art can understand that the methods and apparatuses may be combined and referenced with each other, and a communication apparatus provided by the embodiments of the present application may perform the steps of the UDR network element or the UDM network element in the above communication method. Another communication apparatus may perform the steps performed by the PCF network element in the communication method in the above embodiment. Another communication apparatus may perform the steps performed by the NWDAF network element in the communication method in the above embodiment.

The following is an example of dividing each function module corresponding to each function to illustrate:

As shown in FIG. 15 , FIG. 15 shows a schematic structural diagram of a communication device provided by an embodiment of the present application. The communication device may be a UDR network element or a UDM network element, a PCF network element, or an NWDAF network element in the embodiment of the present application. It can also be a chip applied to a UDR network element or a UDM network element, a PCF network element or an NWDAF network element. The communication device includes: a processing unit 151 and a communication unit 152 . The communication unit 152 is configured to support the communication device to perform the steps of sending or receiving information, and the processing unit 151 is configured to support the communication device to perform the steps of information processing.

An example, taking the communication device as a UDR network element or a UDM network element or a chip or a chip system applied in a UDR network element or a UDM network element as an example, the communication unit 152 is configured to support the communication device to perform the above-mentioned embodiments. S901 or S1001, the processing unit 151 is configured to support the communication device to perform S910 or S1009 in the above embodiment.

In another example, taking the communication device as a PCF network element or a chip or a chip system applied in the PCF network element as an example, the communication unit 152 is configured to support the communication device to perform S1306 or S1406 in the above embodiment, and the processing unit 151 It is used to support the communication device to perform S1312 or S1412 in the above embodiment.

In another example, taking the communication device as an NWDAF network element or a chip or a chip system applied in the NWDAF network element as an example, the communication unit 152 is used to support the communication device to perform S907 or S1007 in the above embodiment, and the processing unit 151 It is used to support the communication device to perform S905 or S1005 in the above embodiment.

In a possible embodiment, the communication apparatus may further include: a storage unit 153 . The processing unit 151, the communication unit 152, and the storage unit 153 are connected through a communication bus.

The storage unit 153 may include one or more memories, and the memories may be devices in one or more devices or circuits for storing programs or data.

The storage unit 153 may exist independently, and is connected to the processing unit 151 of the communication device through a communication bus. The storage unit 153 may also be integrated with the processing unit.

The communication apparatus may be used in a communication device, circuit, hardware component or chip.

Taking the communication device as an example of a chip or a chip system in which a UDR network element or a UDM network element, a PCF network element, or an NWDAF network element in the embodiment of the present application, the communication unit 152 may be an input or output interface, a pin or a circuit, etc. . Exemplarily, the storage unit 153 may store the computer-executed instructions of the method on the side of the UDR network element or the UDM network element, the PCF network element or the NWDAF network element, so that the processing unit 151 executes the UDR network element or UDM network element, The method on the side of the PCF network element or the NWDAF network element. The storage unit 153 may be a register, a cache or a RAM, etc., and the storage unit 153 may be integrated with the processing unit 151 . The storage unit 153 may be a ROM or other type of static storage device that may store static information and instructions, and the storage unit 153 may be independent of the processing unit 151.

An embodiment of the present application provides a communication device, where the communication device includes one or more modules for implementing the methods in the steps included in the foregoing FIG. - The steps of the method in the steps contained in Figure 14 correspond. Specifically, for each step in the method performed by the UDR network element or the UDM network element in the embodiments of the present application, there is a unit or module that performs each step in the method in the UDR network element or the UDM network element. For each step in the method performed by the PCF network element, a unit or module for performing each step in the method exists in the PCF network element. For each step in the method performed by the NWDAF network element, a unit or module for performing each step in the method exists in the NWDAF network element. For example, a module that controls or processes the actions of the communication device may be referred to as a processing module. A module that performs the steps of processing messages or data on the side of the communication device may be referred to as a communication module.

FIG. 16 is a schematic diagram of a hardware structure of a communication device provided by an embodiment of the present application. For the hardware structure of the UDR network element or the UDM network element, the PCF network element, or the NWDAF network element in the embodiments of the present application, reference may be made to the schematic diagram of the hardware structure of the communication device shown in FIG. 16 . The communication device includes a processor 161, a communication line 164 and at least one communication interface (the communication interface 163 is exemplified in FIG. 16 for illustration).

The processor 161 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more processors used to control the execution of the programs of the present application. integrated circuit.

Communication line 164 may include a path to communicate information between the aforementioned components.

The communication interface 163, using any transceiver-like device, is used to communicate with other devices or communication networks, such as Ethernet, wireless local area networks (WLAN), RAN, and the like.

Possibly, the communication device may also include a memory 162 .

Memory 162 may be read-only memory (ROM) or other type of static storage device that can store static information and instructions, random access memory (RAM) or other type of static storage device that can store information and instructions It can also be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, CD-ROM storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or capable of carrying or storing desired program code in the form of instructions or data structures and capable of being executed by a computer Access any other medium without limitation. The memory may exist independently and be connected to the processor through communication line 164 . The memory can also be integrated with the processor.

The memory 162 is used for storing computer-executed instructions for executing the solutions of the present application, and the execution is controlled by the processor 161 . The processor 161 is configured to execute the computer-executed instructions stored in the memory 162, thereby implementing the policy control method provided by the following embodiments of the present application.

Possibly, the computer-executed instructions in the embodiments of the present application may also be referred to as application code, which is not specifically limited in the embodiments of the present application.

In a specific implementation, as an embodiment, the processor 161 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 16 .

In a specific implementation, as an embodiment, the communication device may include multiple processors, such as the processor 161 and the processor 165 in FIG. 16 . Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).

FIG. 17 is a schematic structural diagram of a chip 170 provided by an embodiment of the present invention. The chip 170 includes one or more (including two) processors 1710 and a communication interface 1730 .

In a possible embodiment, the chip 170 shown in FIG. 17 further includes a memory 1740 , which may include read-only memory and random access memory, and provides operation instructions and data to the processor 1710 . A portion of memory 1740 may also include non-volatile random access memory (NVRAM).

In some embodiments, memory 1740 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set of them:

In this embodiment of the present invention, the corresponding operation is performed by calling the operation instruction stored in the memory 1740 (the operation instruction may be stored in the operating system).

A possible implementation manner is: the structures of the chips used by the UDR network element, the UDM network element, the PCF network element or the NWDAF network element are similar, and different devices may use different chips to realize their respective functions.

The processor 1710 controls the operation of the UDR network element or the UDM network element, the PCF network element or the NWDAF network element, and the processor 1710 may also be referred to as a central processing unit (central processing unit, CPU). Memory 1740 may include read-only memory and random access memory, and provides instructions and data to processor 1710 . A portion of memory 1740 may also include non-volatile random access memory (NVRAM). For example, the memory 1740, the communication interface 1730, and the memory 1740 are coupled together through the bus system 1720, wherein the bus system 1720 may include a power bus, a control bus, a status signal bus, and the like in addition to a data bus. However, for clarity of illustration, the various buses are labeled as bus system 1720 in FIG. 17 .

The above communication unit may be an interface circuit or a communication interface of the device for receiving signals from other devices. For example, when the device is implemented in the form of a chip, the communication unit is an interface circuit or a communication interface used by the chip to receive or transmit signals from other chips or devices.

The methods disclosed in the above embodiments of the present invention may be applied to the processor 1710 or implemented by the processor 1710 . The processor 1710 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method may be completed by an integrated logic circuit of hardware in the processor 1710 or an instruction in the form of software. The above-mentioned processor 1710 may be a general-purpose processor, a digital signal processing (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (field-programmable gate array, FPGA) or Other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logical block diagrams disclosed in the embodiments of the present invention can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present invention may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory 1740, and the processor 1710 reads the information in the memory 1740, and completes the steps of the above method in combination with its hardware.

In a possible implementation manner, the communication interface 1730 is configured to perform the steps of receiving and sending the UDR network element or UDM network element, PCF network element or NWDAF network element in the embodiments shown in FIGS. 6-14 . The processor 1710 is configured to perform the processing steps of the UDR network element or the UDM network element, the PCF network element or the NWDAF network element in the embodiments shown in FIGS. 6-14 .

In the above-described embodiments, the instructions stored by the memory for execution by the processor may be implemented in the form of a computer program product. The computer program product can be pre-written in the memory, or downloaded and installed in the memory in the form of software.

A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the procedures or functions according to the embodiments of the present application are generated in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. Computer instructions may be stored on 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 site, computer, server, or data center over a wire (e.g. coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.) means to transmit to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can store, or a data storage device such as a server, a data center, etc. that includes one or more available media integrated. Useful media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, digital versatile disc (DVD)), or semiconductor media (eg, solid state disk (SSD)), etc. .

Embodiments of the present application also provide a computer-readable storage medium. The methods described in the above embodiments may be implemented in whole or in part by software, hardware, firmware or any combination thereof. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media can include both computer storage media and communication media and also include any medium that can transfer a computer program from one place to another. The storage medium can be any target medium that can be accessed by a computer.

As one possible design, the computer readable medium may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium intended to carry or in an instruction or data structure The required program code is stored in the form and can be accessed by the computer. Also, any connection is properly termed a computer-readable medium. For example, if you use coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies (such as infrared, radio, and microwave) to transmit software from a website, server, or other remote source, coaxial cable, fiber optic cable , twisted pair, DSL or wireless technologies such as infrared, radio and microwave are included in the definition of medium. Disk and disc, as used herein, includes compact disc (CD), laser disc, optical disc, DVD, floppy disk, and blu-ray disc, where disks typically reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

The embodiments of the present application also provide a computer program product. The methods described in the above embodiments may be implemented in whole or in part by software, hardware, firmware or any combination thereof. If implemented in software, it may be implemented in whole or in part in the form of a computer program product. A computer program product includes one or more computer instructions. When the above-mentioned computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the above-mentioned method embodiments are generated. The aforementioned computer may be a general purpose computer, a special purpose computer, a computer network, a base station, a terminal, or other programmable devices.

The above specific embodiments further describe the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention, and are not intended to limit the protection scope of the present invention. On the basis of the technical solutions of the present invention, any modifications, equivalent replacements, improvements, etc. made shall be included within the protection scope of the present invention.

It should be noted that each network element in the embodiments of the present application may also adopt other definitions or names in specific applications. Exemplarily, the UDR network element or the UDM network element may be referred to as the first network element, and the PCF network element may be referred to as the first network element. Referred to as the second network element, the NWDAF network element may be referred to as a data analysis function network element, and so on. Alternatively, the above network elements may also be collectively referred to as core network network elements. Alternatively, the above network elements may also define other names according to actual functions, which are not specifically limited in this embodiment of the present application.

Claims (25)

A communication method, comprising: The first network element determines first information for the second network element; the first information includes the first maximum number of terminals or the first maximum number of sessions in the network slice on the second network element, the first information and the The service experience and/or load of the network slice on the second network element is related; the number of the second network element is one or more; The first network element sends the first information to the second network element. The method according to claim 1, wherein the determining, by the first network element, the first information for the second network element comprises: The first network element receives second information from the data analysis function network element, where the second information includes the service experience and/or load of the network slice on the second network element; The first network element determines the first information according to the second information. The method according to claim 2, wherein the first network element receives the second information from the data analysis function network element, comprising: determining, by the first network element, an identifier of the second network element; sending, by the first network element, a first request for requesting the second information to the data analysis function network element, where the first request includes an identifier of the second network element; The first network element receives the second information from the data analysis function network element. The method according to claim 3, wherein the first request further includes one or more of the following information: The identifier of the network slice, the data analysis identifier corresponding to the service experience of the network slice, the data analysis identifier corresponding to the load of the network slice, the area information of the second network element serving the network slice, the The second network element serves the time information of the network slice. The method according to claim 3 or 4, wherein the first network element determines the identifier of the second network element, comprising: The first network element receives the identification of the second network element from the operation, management and maintenance OAM device or the data analysis function network element. The method according to claim 5, wherein the first network element receives the identifier of the second network element from the operation, management and maintenance OAM device or the data analysis function network element, comprising: The first network element sends a second request to the OAM device or the data analysis function network element, where the second request is used to request the identifier of the second network element, and the second request includes the following information: One or more of: the identifier of the network slice, the area information covered by the network slice, and the time information of the network slice service; The first network element receives the identifier of the second network element from the OAM device or the data analysis function network element. The method according to any one of claims 2-6, wherein before the first network element determines the first information for the second network element, the method further comprises: determining, by the first network element, third information about the network slice on the second network element, where the third information includes the second maximum number of terminals or the second maximum number of sessions; sending, by the first network element, the third information to the second network element; The first network element determines the first information according to the second information, including: The service experience of the network slice on the second network element of the first network element is less than the service experience threshold of the network slice or the load of the network slice on the second network element is greater than the network slice load. In the case of the load threshold, reducing the second maximum number of terminals or the second maximum number of sessions to obtain the first maximum number of terminals or the first maximum number of sessions; Or, the service experience of the network slice on the second network element of the first network element is greater than the service experience threshold of the network slice or the load of the network slice on the second network element is smaller than that of the network In the case of the load threshold of the slice, increase the second maximum number of terminals or the second maximum number of sessions to obtain the first maximum number of terminals or the first maximum number of sessions; Alternatively, the service experience of the network slice on the second network element of the first network element is equal to the service experience threshold of the network slice or the load of the network slice on the second network element is equal to the network slice In the case of the load threshold of the slice, keep the second maximum number of terminals or the second maximum number of sessions unchanged to obtain the first maximum number of terminals or the first maximum number of sessions. The method according to any one of claims 2-7, further comprising: The first network element receives the maximum number of terminals or the maximum number of sessions of the network slice from the OAM device. The method of claim 8, further comprising: The first network element receives, from the data analysis function network element, the predicted number of terminals or the predicted number of sessions of the network slice on the second network element. The method of claim 9, further comprising: The first network element receives, from the second network element or the data analysis function network element, the actual number of terminals or the actual number of sessions of the network slice on the second network element. The method according to claim 10, wherein the first network element determines the first information according to the second information, comprising: The first network element determines the first maximum number of terminals or the first maximum number of sessions of the network slice on the second network element according to the second information and the maximum number of terminals or the maximum number of sessions of the network slice ; Alternatively, the first network element determines the first network slice on the second network element according to the second information and the predicted number of terminals or predicted sessions of the network slice on the second network element The maximum number of terminals or the first maximum number of sessions; Or, the first network element determines, according to the second information and the actual number of terminals or actual sessions of the network slice on the second network element, the first network slice on the second network element. The maximum number of terminals or the first maximum number of sessions; Alternatively, the first network element may predict the number of terminals or sessions of the network slice on the second network element according to the second information, and the actual number of terminals of the network slice on the second network element or the actual number of sessions, to determine the first maximum number of terminals or the first maximum number of sessions of the network slice on the second network element; Alternatively, the first network element may use the second information, the maximum number of terminals or the maximum number of sessions of the network slice, the predicted number of terminals or the predicted number of sessions of the network slice on the second network element, and the The actual number of terminals or the actual number of sessions of the network slice on the second network element is determined, and the first maximum number of terminals or the first maximum number of sessions of the network slice on the second network element is determined. The method according to claim 1, wherein determining the first information for the second network element by the first network element comprises: The first network element receives a third request from the second network element; the third request is used to update the second maximum number of terminals or the second maximum number of sessions of the network slice on the second network element ; The first network element determines the first information of the second network element according to the third request; the third request is that the second network element The slice's service experience and/or load is determined. The method according to claim 12, wherein the third request comprises: indication information for instructing to reduce the second maximum number of terminals or the second maximum number of sessions of the network slice on the second network element , or the indication information used to instruct to increase the second maximum number of terminals or the second maximum number of sessions of the network slice on the second network element. The method according to claim 12, wherein the third request comprises: Used to indicate that the service experience of the network slice on the second network element by the first network element is less than the service experience threshold of the network slice or the load of the network slice on the second network element is greater than the Indication information of the load threshold of the network slice; Or, it is used to indicate that the service experience of the network slice on the second network element by the first network element is greater than the service experience threshold of the network slice or the load of the network slice on the second network element is less than Indication information of the load threshold of the network slice; Alternatively, the service experience of the network slice on the second network element of the first network element is equal to the service experience threshold of the network slice or the load of the network slice on the second network element is equal to the network slice The load threshold for the slice. The method according to claim 13 or 14, wherein the third request further comprises: The actual number of terminals or actual sessions of the network slice on the second network element. The method according to any one of claims 12-14, further comprising: receiving, by the first network element, the maximum number of terminals or the maximum number of sessions of the network slice from the OAM device; The first network element receives, from the data analysis function network element, the predicted number of terminals or the predicted number of sessions of the network slice on the second network element; The first network element determines the first information of the second network element according to the third request, including: The first network element determines the second network element according to the maximum number of terminals or the maximum number of sessions, the predicted number of terminals or the predicted number of sessions of the network slice on the second network element, and the third request of the first information. A communication method, comprising: The second network element receives first information from the first network element; the first information is related to the service experience and/or load of the network slice on the second network element; The second network element processes the session creation request from the terminal device and/or the request for the terminal to register with the slice according to the first information. The method according to claim 17, wherein before the second network element receives the first information from the first network element, the method further comprises: The second network element sends a fourth request to the data analysis function network element; the fourth request is used to subscribe the service experience and/or service experience of the network slice on the second network element from the data analysis function network element load; The second network element sends a third request to the first network element according to the service experience and/or load of the network slice on the second network element. The method according to claim 18, wherein the second network element sends a third request to the first network element according to the service experience and/or load of the network slice on the second network element ,include: When the service experience of the network slice is less than the service experience threshold of the network slice or the load of the network slice is greater than the load threshold of the network slice, the second network element sends the message to the first network element. A request for reducing the second maximum number of terminals or the second maximum number of sessions of the network slice on the second network element; Alternatively, when the service experience of the network slice is greater than the service experience threshold of the network slice or the load of the network slice is smaller than the load threshold of the network slice, the second network element sends the first network The element sends a request for increasing the second maximum number of terminals or the second maximum number of sessions of the network slice on the second network element. A communication method, comprising: The data analysis function network element determines the identifier of the second network element, and the number of the second network element is one or more; The data analysis function network element sends the identifier of the second network element to the first network element; The data analysis function network element evaluates the service experience and/or load of the network slice on the second network element, and the service experience and/or load of the network slice on the second network element is used for the first network element The element determines the first information of the second network element, where the first information includes the first maximum number of terminals or the first maximum number of sessions of the network slice on the second network element. The method of claim 20, further comprising: The data analysis function network element receives the first request of the first network element; The data analysis function network element sends the service experience and/or load of the network slice on the second network element to the first network element according to the first request. The method of claim 20, further comprising: receiving, by the data analysis function network element, a fourth request from the second network element; The data analysis function network element sends the service experience and/or load of the network slice on the second network element to the second network element according to the fourth request. A communication device, comprising: a processor and a communication interface; Wherein, the communication interface is used for performing the operation of sending and receiving messages in the communication method according to any one of claims 1-16, or performing the operation in the communication method according to any one of claims 17-19. The operation of sending and receiving a message, or performing the operation of sending and receiving a message in the communication method according to any one of claims 20-22; the processor executes instructions to perform the operation according to any one of claims 1-16 The operation of processing or controlling in the communication method, or the operation of processing or controlling in the communication method as claimed in any one of claims 17-19, or the operation of performing the operation as claimed in any one of claims 20-22 An operation that performs processing or control in a communication method. A chip, characterized in that the chip includes at least one processor and a communication interface, the communication interface is coupled to the at least one processor, and the at least one processor is used for running a computer program or instructions to implement the claim The communication method of any one of claims 1-16, or to implement the communication method of any one of claims 17-19, or to implement the communication of any one of claims 20-22 The method; the communication interface is used to communicate with other modules outside the chip. A computer-readable storage medium, characterized in that the computer-readable storage medium stores instructions, when the instructions are executed, the communication method according to any one of claims 1-16 is implemented, or A communication method as claimed in any one of claims 17-19 is implemented, or a communication method as claimed in any one of claims 20-22 is implemented.

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