WO2023011151A1

WO2023011151A1 - Communication method and device

Info

Publication number: WO2023011151A1
Application number: PCT/CN2022/106227
Authority: WO
Inventors: 姚琦; 宗在峰
Original assignee: 华为技术有限公司
Priority date: 2021-07-31
Filing date: 2022-07-18
Publication date: 2023-02-09
Also published as: CN113784371A

Abstract

The present application provides a communication method and a communication device. The method comprises: a first EES acquires first information from a terminal device, the first information indicating performance requirements of a first EAS; the first EES acquires second information, the second information indicating performance that the first EAS can satisfy; the first EES determines, according to the second information, whether the performance that the first EAS can satisfy meets the performance requirements of the first EAS or not; and when the performance that the first EAS can satisfy does not meet the performance requirements of the first EAS, the first EES sends third information to the terminal device, the third information indicating that the performance that the first EAS can satisfy does not meet the performance requirements of the first EAS. Therefore, according to the solution of the present application, when the performance that the first EAS can satisfy does not meet the performance requirements of the first EAS, the first EES may indicate that the terminal device is prohibited from accessing the first EAS, thereby avoiding unnecessary signaling overhead for the terminal device and saving signaling.

Description

Communication method and device

This application claims the priority of a Chinese patent application with application number 202110878006.9 and application title "Communication Method and Device" filed with the China Patent Office on July 31, 2021, the entire contents of which are incorporated herein by reference.

technical field

The present application relates to the technical field of communication, and more specifically, to a communication method and device.

Background technique

The terminal device can realize the information exchange between the terminal device and the edge data network (edge data network, EDN) by accessing the edge application server (edge application server, EAS). However, when a terminal device accesses a certain EAS, it will have certain performance requirements on the EAS. If the EAS does not meet the corresponding performance requirements, the terminal device still accesses the EAS. On the one hand, the terminal device cannot obtain high-quality services, which affects user experience, and on the other hand, unnecessary signaling overhead is caused. Therefore, how the terminal device can exchange information with the EDN by accessing a suitable EAS is an urgent problem to be solved.

Contents of the invention

The present application provides a communication method and device.

In a first aspect, a communication method is provided, including:

The first edge-enabling server EES acquires first information from the terminal device, the first information indicating the performance requirements of the first edge application server EAS. The first EES acquires second information, and the second information indicates performance that the first EAS can satisfy. The first EES determines whether the performance that the first EAS can meet meets the performance requirement of the first EAS according to the second information. When the performance that can be satisfied by the first EAS does not meet the performance requirements of the first EAS, the first EES sends third information to the terminal device, and the third information indicates that the performance that can be satisfied by the first EAS does not meet the performance requirements of the first EAS.

In a possible implementation manner, the third information indicates that the terminal device is prohibited from accessing the first EAS or that the terminal device is prohibited from sending a discovery request message for the first EAS.

According to the solution of this application, when the EEC of the terminal device initiates registration with the first EES, the first EES, after obtaining the performance requirements of the first EAS from the terminal device, judges whether the performance that the first EAS can meet meets the requirements of the first EAS. - EAS performance requirements. When the performance that the first EAS can meet does not meet the performance requirements of the first EAS, the third information is sent to the terminal device. After receiving the third information, the terminal device no longer sends the discovery request message for the first EAS. Therefore, according to the solution of this application, in the case that the performance that the first EAS can meet does not meet the performance requirements of the first EAS, the first EES can instruct the terminal device not to continue to send the discovery request message for the first EAS to the first EES Or access to the first EAS is prohibited, thereby avoiding unnecessary signaling overhead of the terminal device and saving signaling.

Similarly, the terminal device can also know whether the performance that other EASs can meet meets the corresponding performance requirements, so as to select a suitable EAS from at least one EAS, and access the edge data network EDN through the suitable EAS, thereby improving user experience.

With reference to the first aspect, in some implementation manners of the first aspect, the first EES obtains the second information, including:

The first EES acquires the second information from the first network element, and the first network element is used to detect the performance of the first EAS.

It should be understood that the first network element may be a first EES, a first EAS, a core network element, or other network elements, which is not limited in this application.

In combination with the first aspect, in some implementations of the first aspect, the method further includes:

The first EES sends a first request message to the first network element, where the first request message is used to request performance that the first EAS can satisfy. And/or, the first EES sends a second request message to the first network element, the second request message is used to subscribe to the first event, and the first event is: when the performance that the first EAS can satisfy is greater than the first threshold or less than the first When the threshold is reached, second information is sent to the first EAS, where the second information indicates that the performance that the first EAS can satisfy is greater than the first threshold or less than the first threshold.

According to the solution of this application, the first EES subscribes to the first event from the first network element to obtain the second information, which can avoid the first EES from judging whether the performance that the first EAS can meet meets the performance requirements of the first EAS every time. At any time, the first request message is sent to the first network element, which can also save the signaling overhead of the first EES to a certain extent. In addition, by subscribing to the first event, the first EES can obtain the second information before obtaining the first information, thereby improving the processing efficiency of the first EES and reducing the time delay to a certain extent.

With reference to the first aspect, in some implementations of the first aspect, after the first EES sends the third information to the terminal device, the method further includes:

When the first EES determines that the performance that the first EAS can meet meets the performance requirements of the first EAS, the first EES sends fourth information to the terminal device, and the fourth information indicates that the performance that the first EAS can meet meets the performance requirements of the first EAS .

According to the solution of the present application, when the first EES determines that the performance that the first EAS can satisfy meets the performance requirement of the first EAS, the first EES sends the fourth information to the terminal device. According to the fourth information, the terminal device may send a discovery request message for the first EAS, or directly access the first EAS.

The first EES sends a third request message to the first network element. The third request message is used to subscribe to the second event. The second event is: when the performance that the first EAS can meet meets the performance requirements of the first EAS, send EES sends fourth information. The first EES acquires fourth information from the first network element.

The first EES determines that the performance that the first EAS can meet meets the performance requirements of the first EAS, including:

The first EES determines according to the fourth information that the performance that the first EAS can meet meets the performance requirement of the first EAS.

According to the solution of the present application, by subscribing to the second event from the first network element, the first EES can know in a timely manner that the performance that the first EAS can meet meets the performance requirement of the first EAS.

The first EES receives the fourth request message from the terminal device. The fourth request message is used to subscribe to the third event. The third event is: when the performance that the first EAS can meet meets the performance requirements of the first EAS, send the first EES to the terminal device. Four information.

With reference to the first aspect, in some implementation manners of the first aspect, the fourth information further includes address information of the first EAS.

In a second aspect, a communication method is provided, including:

The terminal device sends first information to the first edge-enabled server EES, the first information indicating performance requirements of the first edge application server EAS. The terminal device receives third information from the first EES, where the third information indicates that the performance that can be satisfied by the first EAS does not meet the performance requirement of the first EAS. The terminal device no longer sends the discovery request message of the first EAS to the first EES according to the third information.

According to the solution of the present application, after the terminal device receives the third information, the terminal device may not visit the first EAS or send a discovery request message for the first EAS to the first EES, thereby saving signaling overhead.

With reference to the second aspect, in some implementations of the second aspect, after the terminal device receives the third information from the first EES, the method further includes:

The terminal device receives fourth information from the first EES, where the fourth information indicates that the performance that can be satisfied by the first EAS meets the performance requirement of the first EAS. The terminal device sends a discovery request message of the first EAS to the first EES according to the fourth information. Alternatively, the terminal device accesses the first EAS according to the fourth information, where the fourth information further includes address information of the first EAS.

With reference to the second aspect, in some implementation manners of the second aspect, the method further includes:

The terminal device sends a fourth request message to the first EES. The fourth request message is used to subscribe to the third event. The third event is: when the performance that the first EAS can meet meets the performance requirements of the first EAS, send the first EAS to the terminal device. Four information.

In a third aspect, a communication device is provided, and the communication device includes a unit for performing the method in the first aspect or various implementations thereof.

In a fourth aspect, a communication device is provided, and the communication device includes a unit for performing the method in the second aspect or various implementations thereof.

According to a fifth aspect, a communication device is provided, including at least one processor. The memory is used to store computer programs. When the communication device is running, the processor executes the computer programs or instructions stored in the memory, so that the communication device executes the method in the first aspect or its various implementations. Or, make the communication device execute the method in the second aspect or its various implementation manners. The memory may be located in the processor, or implemented by a chip independent of the processor, which is not specifically limited in this application.

In a sixth aspect, a computer-readable storage medium is provided, including a computer program. When the computer program is run on a computer, the computer is made to execute the method in the first aspect or various implementations thereof. Or, make the computer execute the method in the second aspect or various implementations thereof.

In a seventh aspect, a chip is provided, and a processing circuit is disposed on the chip, and the processing circuit is used to execute the method in the first aspect or various implementation manners thereof. Alternatively, the processing circuit is configured to execute the method in the second aspect or various implementations thereof.

In an eighth aspect, a computer program product is provided, and the computer program product includes: a computer program (also referred to as code, or an instruction), which, when the computer program is executed, causes the computer to execute the program described in the first aspect or its various implementations. Methods. Or, make the computer execute the method in the second aspect or various implementations thereof.

Description of drawings

Fig. 1 shows the architecture of the system to which the embodiment of the present application is applicable.

Fig. 2 shows an example of a schematic interaction diagram of the method proposed in this application.

Fig. 3 shows a schematic block diagram of a communication device provided by this application.

Fig. 4 shows another schematic block diagram of a communication device provided by this application.

Detailed ways

The technical solution in this application will be described below with reference to the accompanying drawings.

Some terms involved in this application are introduced below in conjunction with Figure 1:

1: Edge data network (EDN)

An understanding of EDN. EDN corresponds to only one data network, which is a special local data network, including edge enabling functions, and is a network logic concept. Another understanding of EDN, EDN is the peer-to-peer concept of the central cloud, which can be understood as a local data center, which can be identified by a data network access identifier (DNAI), and can contain multiple local data network.

2: Application client (application client, AC)

AC is a client program on the user equipment (UE) side. AC can connect to an application server on the cloud to obtain application services, or connect to an edge application server (edge application server) running in one or more EDNs. , EAS) to obtain application services.

3: Edge enabler client (EEC)

The EEC is the peer entity of the EES on the UE side. EEC is used to register EEC information and application client information with EES, perform security authentication and authentication, obtain the IP address of EAS from EES, and provide edge computing enabling capabilities to application clients, etc.

4: Edge application server (edge application server, EAS)

EAS is used to provide application services with edge computing characteristics to application clients, specifically referring to the deployment and operation of a server application (for example, social media software, augmented reality (augmented reality, AR), virtual reality (virtual reality, VR)) Instance on EDN. A multi-access edge computing (MEC) application can deploy one or more EASs in one or more EDNs. EASs deployed and running in different EDNs can be considered as different EASs, and they can be shared. A domain name can use the same IP address or different IP addresses. EAS can also be called edge application, application instance, edge application instance, MEC application, MEC application instance, EAS function, etc.

5: Edge enabler server (EES)

EES can provide some enabling capabilities for application instances deployed in EDN, and can better support the deployment of applications in multi-access edge computing (MEC). The EES can support registration of edge applications, authentication and authorization of UEs, and provide the UEs with network protocol (internet protocol, IP) address information of application instances, etc. The EES can further support obtaining the identification and IP address information of the application instance, and further send the identification and IP address information of the application instance to the edge configuration server. EES is deployed in EDN. Generally, an EAS is registered with an EES, or the information of an EAS is configured on an EES through the management system, and the EES is called the EES associated with the EAS.

6: Edge configuration server (ECS)

The ECS is responsible for providing the information of the EES to the UE. The ECS can also directly provide the information of the application instance to the UE. ECS can also obtain and store information about application instances and IP addresses from other functional entities.

The technical solution proposed by the present application will be described in detail below with reference to FIG. 2 . The method shown in FIG. 2 can be applied to the system shown in FIG. 1 .

S201. The terminal device sends first information to a first EES, where the first information indicates performance requirements of the first EAS. Correspondingly, the first EES receives the first information.

In a possible implementation manner, the first information may further include address information of the terminal device. The terminal device may be an EEC, an AC or a user equipment (user equipment, UE). The address information of the terminal device may be notification address information of the EEC.

It should be understood that the performance requirement of the first EAS may be a key performance indicator (key performance indicator, KPI) requirement of the first EAS. In a possible implementation manner, the performance requirement of the first EAS may be understood as the performance requirement of the AC for the first EAS.

It should be understood that the performance requirements of the first EAS include but are not limited to one or more of the following:

Bandwidth requirements for the first EAS, response time requirements for the first EAS, memory requirements for the first EAS, storage requirements for the first EAS, and central processing unit (central processing unit, CPU) requirements for the first EAS wait.

It should be understood that performance requirements can be divided into two types: expected performance requirements and minimum performance requirements. Generally speaking, the expected performance requirement is a performance requirement that is more demanding and more difficult to meet than the minimum performance requirement.

For example, the expected bandwidth requirement is 200M, and the minimum bandwidth requirement is 150M. Desired bandwidth requirements are more difficult to satisfy than minimum bandwidth requirements.

In a possible implementation manner, the performance requirements of the first EAS indicated by the first information may include not only the expected performance requirements of the first EAS, but also the minimum performance requirements of the first EAS.

In a possible implementation manner, the first information may also indicate performance requirements of other EASs, for example, performance requirements of the second EAS, performance requirements of the third EAS, and the like. This application is not limited to this.

It should be understood that the terminal device includes the EEC, and the EEC may send the first information to the first EES. The first information may be included in a registration request message or a service provisioning request (service provisioning request) message of the EEC. Alternatively, the first information may be included in other messages, which is not limited in this application.

S202. The first EES acquires second information from the first network element, where the second information indicates performance that the first EAS can satisfy.

Wherein, the first network element is a network element that detects the performance of the first EAS. For example, the first network element may be a first EAS, a first EES, a core network element or other network elements, which is not limited in this application.

The following describes how the EES obtains the second information from the first network element.

Method 1:

When the first network element is not the first EES, the first EES may send a first request message to the first network element, where the first request message is used to request performance that the first EAS can satisfy. Correspondingly, the first network element receives the first request message. The first network element sends a first response message to the first EES, where the first response message includes the second information.

For example, in order to acquire bandwidth that can be satisfied by the first EAS, the first EES may send a first request message to the first EAS, requesting the first EAS to feed back bandwidth information that can be satisfied. The first EAS carries bandwidth information that can be satisfied in the first response message.

For another example, in order to obtain a response time that the first EAS can satisfy, the first EES may send a first request message to a core network element, for example, a network data analysis function (network data analytics function, NWDAF) network element, the first The request message may include the identification of the first EAS and the identification of the terminal device, and the NWDAF network element determines the historical response time or average response time of other terminal devices accessing the first EAS in the location where the terminal device is located or in a nearby location according to the identification of the terminal device . The NWDAF network element sends a first response message to the first EES, and the first response message includes the historical response time or average response time information of the first EAS.

When the first network element is the first EES, the first EES may acquire the second information locally.

Method 2:

When the first network element is not the first EES, the first EES may send a second request message to the first network element in advance, where the second request message is used to subscribe to the first event.

In a possible implementation manner, the first event may be: when the performance that the first EAS can satisfy is greater than the first threshold, the first network element sends second information to the first EES, where the second information indicates that the first EAS The performance that the EAS can satisfy is greater than the first threshold. Or, when the performance that the first EAS can satisfy is less than the first threshold, the first network element sends second information to the first EES, where the second information indicates that the performance that the first EAS can satisfy is less than the first threshold.

It should be understood that, in this mode 2, the performance that the first EAS can satisfy as indicated by the second information acquired by the first EES may not be an exact value, but an approximate range.

For example, the second information indicates that the bandwidth that the first EAS can satisfy is less than 100M or greater than 100M.

According to the solution of this application, the first EES subscribes to the first event from the first network element, thereby obtaining the second information, which can avoid the first EES from judging whether the performance that the first EAS can meet meets the performance of the first EAS every time When required, the first request message is sent to the first network element, which can also save the signaling overhead of the first EES to a certain extent. In addition, by subscribing to the first event, the first EES can obtain the second information before obtaining the first information, thereby improving the processing efficiency of the first EES and reducing the time delay to a certain extent.

S203. The first EES determines whether the performance that can be satisfied by the first EAS meets the performance requirement of the first EAS according to the second information.

The following introduces several ways for the first EES to determine whether the performance that the first EAS can meet meets the performance requirements of the first EAS.

Method 1:

It corresponds to mode 1 in S202.

In manner 1 of S202, the performance that the first EAS can satisfy indicated by the second information is accurate, and the first EES can determine whether the performance that the first EAS can satisfy meets the performance requirement of the first EAS according to the second information.

For example, the first information indicates that the memory requirement of the first EAS is 100M, and the second information indicates that the memory that can be satisfied by the first EAS is 110M, then the first EES determines that the memory that can be satisfied by the first EAS meets the memory requirement of the first EAS; or , the second information indicates that the memory that can be satisfied by the first EAS is 90M, then the first EES determines that the memory that can be satisfied by the first EAS does not meet the memory requirement of the first EAS.

Method 2:

It corresponds to mode 2 in S202.

In manner 2 of S202, the performance that the first EAS indicated by the second information can satisfy is an approximate range. The following sub-cases are described.

Case A:

The first EES may determine whether the performance that the first EAS can meet meets the performance requirements of the first EAS according to the second information.

For example, the first information indicates that the memory requirement of the first EAS is 100M, and the second information indicates that the memory that can be satisfied by the first EAS is greater than 120M, then the first EES determines that the memory that can be satisfied by the first EAS meets the memory requirement of the first EAS; or , the second information indicates that the memory that can be satisfied by the first EAS is less than 100M, then the first EES determines that the memory that can be satisfied by the first EAS does not meet the memory requirement of the first EAS.

Case B:

The first EES cannot determine whether the performance that the first EAS can meet meets the performance requirement of the first EAS according to the second information.

For example, the first information indicates that the memory requirement of the first EAS is 100M, and the second information indicates that the memory that the first EAS can meet is less than 120M. At this time, the first EES cannot determine whether the memory that the first EAS can meet meets the requirements of the first EAS. memory requirements.

When situation B occurs, the first EES can obtain the performance that the first EAS can satisfy from the first network element according to the method 1 in S202, and then judge whether the performance that the first EAS can satisfy meets the requirements of the first EAS according to the method 1 in S203. - EAS performance requirements.

In addition, the performance requirements of the first EAS indicated by the first information may include one or more types, and thus may be divided into the following situations.

Case 1:

There is only one performance requirement of the first EAS indicated by the first information.

For example, the first information indicates the bandwidth requirement of the first EAS, and the first EES determines whether the bandwidth that can be satisfied by the first EAS meets the bandwidth requirement of the first EAS.

Case 2:

There are various performance requirements of the first EAS indicated by the first information.

For example, if the first information indicates the bandwidth requirements and memory requirements of the first EAS, the first EES determines whether the bandwidth that can be satisfied by the first EAS meets the bandwidth requirements of the first EAS, and determines whether the memory that can be satisfied by the first EAS meets the requirements of the first EAS. EAS memory requirements. At this time, it may happen that the bandwidth that can be satisfied by the first EAS meets the bandwidth requirements of the first EAS, but the memory that can be satisfied by the first EAS does not meet the memory requirements of the first EAS; or, the memory that can be satisfied by the first EAS The bandwidth requirement of the first EAS is met, but the bandwidth that the first EAS can satisfy does not meet the memory requirement of the first EAS.

In addition, in a possible implementation manner, the first information indicates the expected performance requirement and the minimum performance requirement of the first EAS, and the first EES can respectively determine whether the performance that the first EAS can satisfy meets the expected performance requirement of the first EAS and Minimum performance requirements for the first EAS.

Alternatively, the first EES may first determine whether the performance that the first EAS can satisfy meets the expected performance requirement, and if the performance that the first EAS can satisfy meets the expected performance requirement, the first EES does not continue to judge whether the performance that the first EAS can satisfy Whether the performance meets the minimum performance requirements, that is, at this time, it can be defaulted that the performance that the first EAS can meet meets the minimum performance requirements; if the performance that the first EAS can meet does not meet the expected performance requirements, the first EES continues to judge the first Whether the performance that EAS can meet meets the minimum performance requirements.

Alternatively, the first EES may first determine whether the performance that the first EAS can satisfy meets the minimum performance requirement, and if the performance that the first EAS can satisfy does not meet the minimum performance requirement, the first EES does not continue to judge that the first EAS can meet the minimum performance requirement. Whether the performance of the first EAS meets the expected performance requirements, that is, at this time, it can be defaulted that the performance that can be satisfied by the first EAS does not meet the expected performance requirements; when the performance that can be satisfied by the first EAS meets the minimum performance requirements, the first EES continues to judge the first EAS - Whether the performance that the EAS can meet meets the expected performance requirements.

It should be understood that when the first information also indicates the performance requirements of other EASs, similar to the first EES determining whether the performance that the first EAS can meet meets the performance requirements of the first EAS, the first EES can determine whether the performance that other EASs can meet Meet the performance requirements of other EAS.

It should be understood that when the first EES determines that the performance that the first EAS can satisfy meets the performance requirements of the first EAS, the first EAS can send fourth information to the terminal device, where the fourth information indicates the performance that the first EAS can satisfy Meet the performance requirements of the first EAS.

In the case where the first EES determines that the performance that the first EAS can meet does not meet the performance requirements of the first EAS, the method further includes:

S204. The first EES sends third information to the terminal device, where the third information indicates that the performance that can be satisfied by the first EAS does not meet the performance requirement of the first EAS. Correspondingly, the terminal device receives the third information.

In another possible implementation manner, the third information may instruct the terminal device to prohibit sending the discovery request message for the first EAS, or instruct the terminal device to prohibit access to the first EAS.

It should be understood that the terminal device includes the EEC, and the first EES may send the third information to the EEC. The third information may be included in the EEC registration response message, or in other messages, which is not limited in this application.

In the case where the first information indicates the expected performance requirements and the minimum performance requirements of the first EAS, the third information may indicate that the performance that the first EAS can meet does not meet the expected performance requirements, and that the performance that the first EAS can meet does not meet the minimum performance requirements. Performance requirements; or, the third information only indicates that the performance that can be satisfied by the first EAS does not meet the minimum performance requirements, and at this time, the third information implicitly indicates that the performance that can be satisfied by the first EAS does not meet the expected performance requirements.

In the case where there are multiple performance requirements of the first EAS indicated by the first information, for example, the first information indicates the bandwidth requirements and memory requirements of the first EAS, in S203, the first EES determines the bandwidth that the first EAS can meet It meets the bandwidth requirement of the first EAS, but the memory that can be satisfied by the first EAS does not meet the memory requirement of the first EAS. At this time, the third information may indicate that the memory that can be satisfied by the first EAS does not meet the memory requirement of the first EAS. Optionally, the third information may also indicate that the bandwidth that the first EAS can meet meets the bandwidth requirement of the first EAS. Optionally, the third information may also indicate the size of the memory that the first EAS can satisfy.

It should be understood that, in a case where the first information also indicates the performance requirements of other EASs, for example, the first information indicates the performance requirements of the first EAS, the performance requirements of the second EAS, and the performance requirements of the third EAS. In S203, the first EES determines that the performance that can be satisfied by the first EAS meets the performance requirements of the first EAS, the performance that can be satisfied by the second EAS does not meet the performance requirements of the second EAS, and the performance that can be satisfied by the third EAS does not meet the performance requirements of the third EAS. EAS performance requirements. At this time, the first EES may send three messages to the terminal device, respectively indicating whether the performance that the three EASs can meet meets the corresponding performance requirements; or, the first EES may send two messages to the terminal device, and the information #1 includes The identification information of the EAS that does not meet the corresponding performance requirement, and information #2 includes the identification information of the EAS that meets the corresponding performance requirement. Wherein, the above three pieces of information or two pieces of information may be sent in one message, or may be sent separately in multiple messages.

It should be understood that the above examples are for illustrative purposes only, and the present application is not limited thereto.

S205. The terminal device determines not to send a discovery request message for the first EAS to the first EES according to the third information. Alternatively, the terminal device no longer requests to access the first EAS according to the third information.

It should be understood that the terminal device includes the EEC, and the EEC may no longer send the discovery request message for the first EAS to the first EES according to the third information. Or, the EEC does not access the first EAS according to the third information.

In a possible implementation, the first information indicates that there are multiple performance requirements of the first EAS, and the third information indicates that there is performance that does not meet the performance requirements of the first EAS among the performance requirements that the first EAS can meet, then the terminal The device may no longer send a discovery request message for the first EAS to the first EES.

For example, the first information indicates the bandwidth requirements and memory requirements of the first EAS, the third information indicates that the bandwidth that can be satisfied by the first EAS does not meet the bandwidth requirements of the first EAS, and the memory that can be satisfied by the first EAS meets the memory requirements of the first EAS , the terminal device may no longer send the discovery request message for the first EAS to the first EES.

In another possible implementation manner, the first information indicates the expected performance requirement and the minimum performance requirement of the first EAS. If the third information indicates that the performance that the first EAS can meet does not meet the expected performance requirement and/or the minimum performance requirement, the terminal device may no longer send a discovery request message for the first EAS to the first EES according to the third information.

In another possible implementation manner, the first information indicates the expected performance requirement and the minimum performance requirement of the first EAS. If the third information indicates that the performance that the first EAS can satisfy only meets the minimum performance requirement and does not meet the expected performance requirement, the terminal device may also send a discovery request message for the first EAS to the first EES according to the third information.

It should also be understood that, in another possible implementation manner, the first information indicates the expected performance requirement of the first EAS. If the third information includes the size of performance that can be satisfied by the first EAS, the terminal device can determine whether the performance that can be satisfied by the first EAS meets the minimum performance requirement of the first EAS. When the performance that the first EAS can satisfy meets the minimum performance requirement of the first EAS, the terminal device may send a discovery request message for the first EAS to the first EES.

For example, the third information includes that the bandwidth that can be satisfied by the first EAS is 90M. If the terminal device determines that the bandwidth that can be satisfied by the first EAS meets the minimum bandwidth requirement of the first EAS, the terminal device may send a discovery request message for the first EAS to the first EES.

According to the solution of this application, after the first EES obtains the performance requirements of the first EAS from the terminal device through the EEC registration request message or other request messages, it determines whether the performance that the first EAS can satisfy meets the performance requirements of the first EAS . When the performance that the first EAS can meet does not meet the performance requirements of the first EAS, the third information is sent to the terminal device. After receiving the third information, the terminal device no longer sends the discovery request message for the first EAS. Therefore, according to the solution of the present application, when the performance that the first EAS can meet does not meet the performance requirements of the first EAS, the first EES can instruct the terminal device to prohibit access to the first EAS, thereby avoiding unnecessary information for the terminal device. Reduce signaling overhead and save signaling.

Similarly, the terminal device can also know whether the performance that can be satisfied by other EAS deployed in the EDN meets the corresponding performance requirements, so that it can select a suitable EAS from at least one EAS, and access the edge data network EDN through the suitable EAS, and then Improve user experience.

In a possible implementation manner, the method further includes: S206. The terminal device sends a fourth request message to the first EES, where the fourth request message is used to subscribe to a third event. The third event is when the first EAS can When the satisfied performance meets the performance requirement of the first EAS, fourth information is sent to the terminal device, where the fourth information indicates that the performance that can be satisfied by the first EAS meets the performance requirement of the first EAS. Alternatively, the fourth information indicates that the terminal device is allowed to access the first EAS. Alternatively, the fourth information indicates that the terminal device is allowed to send a discovery request message for the first EAS.

It should be understood that the terminal device includes the EEC, and the fourth request message may be sent by the EEC to the first EES.

In a possible implementation manner, the fourth request message may be sent simultaneously with the first information in S201, that is, the first information may be included in the fourth request message. In another possible implementation manner, the terminal device may send a fourth request message to the first EES after receiving the third information.

According to the solution of the present application, by subscribing to the third event from the first EES, the terminal device can know in a timely manner that the performance that the first EAS can meet meets the performance requirement of the first EAS.

S207. After the first EES sends the third information to the terminal device, the first EES determines that the performance that can be satisfied by the first EAS meets the performance requirement of the first EAS.

The following describes how the first EES determines that the performance that the first EAS can meet meets the performance requirements of the first EAS:

Method 1:

If the first network element is not the first EES, the first EES may send a third request message to the first network element, where the third request message is used to subscribe to a second event, and the second event is when the first network element determines that the first EES When the performance that can be satisfied by an EAS meets the performance requirement of the first EAS, the fourth information is sent to the first EES. In a possible implementation manner, the fourth information may include address information of the first EAS.

The first EES acquires the fourth information from the first network element, and determines according to the fourth information that the performance that the first EAS can satisfy meets the performance requirement of the first EAS.

Method 2:

If the first network element is the first EES, the first EES may detect performance that the first EAS can satisfy. At this time, the first EES may determine that the performance that the first EAS can satisfy meets the performance requirement of the first EAS without going through other network elements.

Method 3:

If the first network element is not the first EES, the first EES may periodically send the first request information to the first network element, and acquire performance that the first EAS can satisfy from the first network element. When the first EES determines according to the information acquired from the first network element that the performance that the first EAS can satisfy meets the performance requirement of the first EAS, the first EES no longer sends the first request message to the first network element.

S208. The first EES sends fourth information to the terminal device. Correspondingly, the terminal device receives the fourth information.

In a possible implementation manner, the fourth information may include address information of the first EAS.

It should be understood that if the first information in S201 includes address information of the terminal device, the first EES may send fourth information to the terminal device according to the address information of the terminal device.

It should be understood that the terminal device includes the EEC, the first EES may send the fourth information to the EEC, and the EEC receives the fourth information accordingly.

S209, the terminal device accesses the first EAS according to the fourth information.

In a possible implementation manner, the terminal device sends a discovery request message for the first EAS to the first EES according to the fourth information, where the discovery request message is used to obtain address information of the first EAS. The first EES sends address information of the first EAS to the terminal device. The terminal device accesses the first EAS according to the address information of the first EAS.

In another possible implementation manner, the fourth information obtained by the terminal device from the first EES may include address information of the first EAS. At this time, the terminal device can directly access the first EAS.

It should be understood that the terminal device includes an EEC, and the EEC can access the first EAS according to the fourth information.

According to the foregoing method, FIG. 3 is a communication device provided in an embodiment of the present application, and the communication device includes a transceiver unit 301 and a processing unit 302 . The transceiver unit 301 can be used to implement the receiving and sending functions in the method embodiments. Other functions in the method embodiments may be implemented by the processing unit 302 . The transceiver unit can be realized through the input interface and output interface in the data processing chip, and the sending and receiving in the method embodiment correspond to the output and input in the chip respectively. The transceiver unit 301 can also be divided into a receiving unit and a sending unit. The receiving unit can be used to realize the receiving function in the method embodiment, and the sending unit can be used to realize the sending function in the method embodiment. The receiving unit can be realized through the output interface of the data processing chip, and the sending unit can be realized through the input interface of the data processing chip. In addition, the transceiver unit and the processing unit can be implemented by the same chip, which is not limited in this application. It should be understood that the transceiver unit 301 in the embodiment of the present application may also be implemented by a transceiver (including a transmitter and a receiver) or a transceiver-related circuit component, and the processing unit 302 may also be implemented by a processor or a processor-related circuit component (or, Called the processing circuit) implementation.

Exemplarily, when the communication device is a terminal device, the transceiving unit 301 and the processing unit 302 can support actions performed by the terminal device in the above method examples. For example, the transceiving unit 301 can complete the sending of the first information in the above method embodiment, and other processes in the technical solution described herein; the processing unit 302 can complete determining not to send the discovery request for the first EAS according to the third information messages, and other processes in the technical solutions described herein.

Exemplarily, when the communication device is the first EES, the transceiving unit 301 and the processing unit 302 can support actions performed by the first EES in the above method example. For example, the transceiver unit 301 can complete the sending of the third information in the above method embodiment, and other processes in the technical solution described herein; the processing unit 302 can complete the determination according to the second information whether the performance that the first EAS can meet meets the requirements of the first EAS. A performance requirement of EAS, and other processes in the technical solution described in this paper.

Exemplarily, when the communication device is the first network element, the transceiving unit 301 and the processing unit 302 can support actions performed by the first network element in the foregoing method example. For example, the transceiver unit 301 can complete the receiving of the first request message in the above method embodiment, and other processes in the technical solution described herein; the processing unit 302 can complete the detection of the performance that the first EAS can satisfy, and the Other processes in the technical plan.

The embodiment of the present application also provides a communication device, as shown in FIG. 4 , including: a processor 401 , a communication interface 402 , and a memory 403 . Wherein, the processor 401, the communication interface 402, and the memory 403 can be connected to each other through a bus 404; the bus 404 can be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus or an extended industry standard architecture (extended industry standard architecture, EISA) bus etc. The above-mentioned bus 404 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is used in FIG. 4 , but it does not mean that there is only one bus or one type of bus. The processor 401 may be a central processing unit (central processing unit, CPU), a network processor (network processor, NP) or a combination of CPU and NP. The processor may further include hardware chips. The aforementioned hardware chip may be an application-specific integrated circuit (application-specific integrated circuit, ASIC), a programmable logic device (programmable logic device, PLD) or a combination thereof. The aforementioned PLD may be a complex programmable logic device (complex programmable logic device, CPLD), a field-programmable gate array (field-programmable gate array, FPGA), a general array logic (generic array logic, GAL) or any combination thereof. Memory 403 may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. Among them, the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically programmable Erases programmable read-only memory (electrically EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (RAM), which acts as external cache memory.

The processor 401 is used to implement data processing operations of the communication device. The communication interface 402 is used to realize the sending and receiving operation of the communication device.

Exemplarily, when the communication device is a terminal device, the processor 401, the communication interface 402, and the memory 403 can support actions performed by the terminal device in the foregoing method examples. For example, the communication interface 402 can complete the sending of the first information in the above method embodiment, and other processes in the technical solution described herein; the processor 401 can complete the determination based on the third information that no longer send the discovery request for the first EAS messages, and other processes in the technical solutions described herein.

Exemplarily, when the communication device is the first EES, the processor 401, the communication interface 402, and the memory 403 can support actions performed by the first EES in the foregoing method example. For example, the communication interface 402 can complete the sending of the third information in the above method embodiment, and other processes in the technical solution described herein; the processor 401 can complete the determination according to the second information whether the performance that the first EAS can satisfy meets the first EAS. A performance requirement of EAS, and other processes in the technical solution described in this paper.

Exemplarily, when the communication device is the first network element, the processor 401, the communication interface 402, and the memory 403 can support actions performed by the first network element in the foregoing method examples. For example, the communication interface 402 can complete the receiving of the first request message in the above method embodiment, and other processes in the technical solution described herein; the processor 401 can complete the detection of the performance that the first EAS can satisfy, and the Other processes in the technical plan.

The technical solution of the embodiment of the present application can be applied to various communication systems, such as: global system of mobile communication (global system of mobile communication, GSM) system, code division multiple access (code division multiple access, CDMA) system, broadband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE Time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunications system, UMTS), global interconnection microwave access (worldwide interoperability for microwave access, WiMAX) communication system, the future fifth generation (5th generation, 5G) system or new radio (new radio, NR), etc.

The terminal device in the embodiment of the present application may refer to user equipment, access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a Functional handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in future 5G networks or future evolutions of public land mobile networks (public land mobile network, PLMN) The terminal device and the like are not limited in this embodiment of the present application.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims

A communication method, characterized in that, comprising:

The first edge-enabled server EES acquires first information from the terminal device, the first information indicating performance requirements of the first edge application server EAS;

The first EES acquires second information, where the second information indicates performance that the first EAS can satisfy;

The first EES determines whether the performance that the first EAS can meet meets the performance requirements of the first EAS according to the second information;

When the performance that the first EAS can meet does not meet the performance requirements of the first EAS, the first EES sends third information to the terminal device, and the third information indicates that the first EAS can meet The performance does not meet the performance requirements of the first EAS.
The method according to claim 1, characterized in that,

The first EES acquires second information, including:

The first EES acquires the second information from a first network element, and the first network element is used to detect the performance of the first EAS.
The method according to claim 2, further comprising:

The first EES sends a first request message to the first network element, where the first request message is used to request performance that the first EAS can satisfy; and/or,

The first EES sends a second request message to the first network element, the second request message is used to subscribe to a first event, and the first event is: when the performance that the first EAS can satisfy is greater than the first When a threshold is equal to or less than the first threshold, sending the second information to the first EAS, the second information indicates that the performance that the first EAS can satisfy is greater than the first threshold or less than the first threshold a threshold.
The method according to any one of claims 1-3, characterized in that,

After the first EES sends the third information to the terminal device, the method further includes:

When the first EES determines that the performance that the first EAS can meet meets the performance requirements of the first EAS, the first EES sends fourth information to the terminal device, and the fourth information indicates that the The performance that the first EAS can meet meets the performance requirements of the first EAS.
The method according to claim 4, characterized in that,

The method also includes:

The first EES sends third request information to the first network element, where the third request message is used to subscribe to a second event, and the second event is: when the performance that the first EAS can meet meets the requirements of the first EAS When a performance requirement of an EAS is required, sending the fourth information to the first EES;

The first EES acquires the fourth information from the first network element;

The first EES determines that the performance that the first EAS can meet meets the performance requirements of the first EAS, including:

The first EES determines according to the fourth information that the performance that the first EAS can meet meets the performance requirement of the first EAS.
The method according to claim 4 or 5, characterized in that the method further comprises:

The first EES receives a fourth request message from the terminal device, the fourth request message is used for subscribing to a third event, and the third event is: when the performance that the first EAS can satisfy conforms to the first The fourth information is sent to the terminal device when a performance requirement of the EAS is required.
The method according to any one of claims 4-6, characterized in that,

The fourth information also includes address information of the first EAS.
A communication method, characterized in that, comprising:

The terminal device sends first information to the first edge-enabled server EES, where the first information indicates performance requirements of the first edge application server EAS;

The terminal device receives third information from the first EES, the third information indicating that the performance that can be satisfied by the first EAS does not meet the performance requirements of the first EAS;

The terminal device no longer sends the discovery request message of the first EAS to the first EES according to the third information.
The method according to claim 8, characterized in that,

After the terminal device receives the third information from the first EES, the method further includes:

The terminal device receives fourth information from the first EES, the fourth information indicating that the performance that the first EAS can meet meets the performance requirements of the first EAS;

The terminal device sends a discovery request message of the first EAS to the first EES according to the fourth information; or,

The terminal device accesses the first EAS according to the fourth information, and the fourth information further includes address information of the first EAS.
The method according to claim 9, characterized in that the method further comprises:

The terminal device sends a fourth request message to the first EES, the fourth request message is used to subscribe to a third event, and the third event is: when the performance that the first EAS can meet meets the requirements of the first EES When an EAS performance requirement is required, the fourth information is sent to the terminal device.
A communication device, characterized by comprising:

a transceiver unit, configured to acquire first information from the terminal device, the first information indicating the performance requirements of the first edge application server EAS;

The transceiver unit is further configured to acquire second information, where the second information indicates the performance that the first EAS can meet;

a processing unit, configured to determine whether the performance that the first EAS can meet meets the performance requirements of the first EAS according to the second information;

When the performance that the first EAS can meet does not meet the performance requirements of the first EAS, the transceiver unit is further configured to send third information to the terminal device, the third information indicating that the first The performance that can be satisfied by the EAS does not meet the performance requirement of the first EAS.
The device according to claim 11, characterized in that,

The transceiver unit is also used to acquire second information, including:

The transceiving unit acquires the second information from a first network element, and the first network element is used to detect the performance of the first EAS.
The device according to claim 12, characterized in that,

The transceiver unit is further configured to send a first request message to the first network element, where the first request message is used to request performance that the first EAS can satisfy; and/or,

The transceiver unit is further configured to send a second request message to the first network element, the second request message is used to subscribe to a first event, and the first event is: when the first EAS can satisfy When the performance is greater than the first threshold or less than the first threshold, sending the second information to the first EAS, the second information indicates that the performance that the first EAS can meet is greater than the first threshold or less than the first threshold the first threshold.
The device according to any one of claims 11-13, characterized in that,

After the transceiver unit sends the third information to the terminal device,

The processing unit is further configured to determine that the performance that the first EAS can meet meets the performance requirements of the first EAS;

The transceiving unit is further configured to send fourth information to the terminal device, where the fourth information indicates that the performance that the first EAS can satisfy meets the performance requirement of the first EAS.
The device according to claim 14, characterized in that,

The transceiver unit is further configured to send third request information to the first network element, the third request message is used to subscribe to a second event, and the second event is: when the performance that the first EAS can meet meets When the performance of the first EAS is required, send the fourth information to the first EES;

The transceiving unit is further configured to obtain the fourth information from the first network element;

The processing unit is further configured to determine that the performance that the first EAS can meet meets the performance requirements of the first EAS, including:

The processing unit determines according to the fourth information that the performance that the first EAS can meet meets the performance requirement of the first EAS.
Apparatus according to claim 14 or 15, characterized in that

The transceiver unit is further configured to receive a fourth request message from the terminal device, the fourth request message is used to subscribe to a third event, and the third event is: when the performance that the first EAS can meet meets The fourth information is sent to the terminal device when the performance of the first EAS is required.
The device according to any one of claims 14-16, characterized in that,

The fourth information also includes address information of the first EAS.
A communication device, characterized by comprising:

A transceiver unit, configured to send first information to the first edge-enabled server EES, the first information indicating the performance requirements of the first edge application server EAS;

The transceiving unit is further configured to receive third information from the first EES, the third information indicating that the performance that the first EAS can meet does not meet the performance requirements of the first EAS;

The transceiving unit is further configured to no longer send the discovery request message of the first EAS to the first EES according to the third information.
The device according to claim 18, characterized in that,

After the transceiver unit receives the third information from the first EES,

The transceiving unit is further configured to receive fourth information from the first EES, the fourth information indicating that the performance that the first EAS can meet meets the performance requirements of the first EAS;

The transceiver unit is further configured to send a discovery request message of the first EAS to the first EES according to the fourth information; or,

The transceiving unit is further configured to access the first EAS according to the fourth information, where the fourth information also includes address information of the first EAS.
The device according to claim 19, characterized in that,

The transceiver unit is further configured to send a fourth request message to the first EES, the fourth request message is used to subscribe to a third event, and the third event is: when the performance that the first EAS can satisfy When meeting the performance requirements of the first EAS, sending the fourth information to the terminal device.
A communication device, characterized by comprising: a processor and a memory, the processor is used to execute computer programs or instructions stored in the memory, so that the communication device performs the process described in any one of claims 1-7. method described; or,

The communication device is made to execute the method according to any one of claims 8-10.
A computer-readable storage medium, characterized in that it includes a computer program or an instruction, and when the computer program or the instruction is run on a computer,

causing the computer to perform the method according to any one of claims 1-7; or,

The computer is made to execute the method according to any one of claims 8-10.
A chip system, characterized in that it includes: at least one processor for executing computer programs or instructions in memory,

causing the method according to any one of claims 1-7 to be implemented; or,

The method according to any one of claims 8-10 is realized.