CN116367270A

CN116367270A - Communication method, device, related equipment and storage medium

Info

Publication number: CN116367270A
Application number: CN202111616693.3A
Authority: CN
Inventors: 李永竞; 王丹; 孙滔
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2023-06-30

Abstract

The application discloses a communication method, a communication device, a Network Slice Admission Control Function (NSACF), an access and mobility management function (AMF), access network equipment, a terminal and a storage medium. The method comprises the following steps: the NSACF determines that the number of terminals registered by the first slice meets a first condition; a first message is sent to an AMF informing of advanced availability query (EAC) mode deactivation for the first slice.

Description

Communication method, device, related equipment and storage medium

Technical Field

The present disclosure relates to the field of wireless communications, and in particular, to a communication method, apparatus, related device, and storage medium.

Background

The network slicing technology is one of the key technologies of the fifth generation mobile communication technology (5G). Because the 5G core network is based on the flexibility of the service architecture, the network functions of the 5G core network can be flexibly combined according to the network requirements of the vertical industry clients through the network slicing technology to form a virtual logic network. Examples of different network slices may be distinguished based on different single network slice selection assistance information (S-nsai, single Network Slice Selection Assistance Information).

In the related art, the network slice admission control function (nsafc, network Slice Admission Control Function) can control the number of users accessing a network slice, i.e., the number of terminals registered by the network slice. However, in the case where the number of terminals registered by the network slice satisfies a specific condition, there is no effective solution for how to implement communication between the nsaf and the access and mobility management function (AMF, access and Mobility Management Function).

Disclosure of Invention

In order to solve the related technical problems, embodiments of the present application provide a communication method, a device, a related apparatus, and a storage medium.

The technical scheme of the embodiment of the application is realized as follows:

the embodiment of the application provides a communication method applied to NSACF, which comprises the following steps:

determining that the number of terminals registered by the first slice meets a first condition;

a first message is sent to the AMF informing of advanced availability query (EAC, early Availability Check) mode deactivation for the first slice.

In the above scheme, the first condition includes that the number of terminals registered by the first slice drops from a first number to a first threshold.

In the above solution, the first message includes at least one of the following:

A first identifier, the first identifier characterizing that EAC mode flag is deactivated;

identification of the first slice.

The embodiment of the application also provides a communication method, which is applied to the AMF and comprises the following steps:

receiving a first message sent by NSACF;

and sending a second message to the access network equipment, wherein the second message at least indicates that the number of the terminals registered by the first slice is free.

In the above solution, the second message includes at least one of the following:

identification of the first slice;

the second identifier characterizes that the number of the terminals currently registered by the first slice is free;

first information indicating broadcasting of a third message.

In the above scheme, the second message is sent to the access network device through the N2 interface.

identification of the first slice.

The embodiment of the application also provides a communication method which is applied to the access network equipment and comprises the following steps:

receiving a second message sent by the AMF;

and sending a third message to the terminals in the service range, wherein the third message is used for informing that the number of the terminals registered by the first slice is free.

In the above-described arrangement, the first and second embodiments,

broadcasting the third message.

In the above-described arrangement, the first and second embodiments,

and receiving a second message sent by the AMF through the N2 interface.

identification of the first slice;

first information indicating broadcasting of the third message.

The embodiment of the application also provides a communication method, which is applied to the terminal and comprises the following steps:

receiving a third message sent by access network equipment; the third message is used for notifying that the number of the terminals registered by the first slice is free.

In the above scheme, the terminal includes a terminal that registers that the first slice is rejected; the method further comprises the steps of:

a registration request is initiated, the registration request requesting registration of the first slice.

In the above-described arrangement, the first and second embodiments,

the registration request is initiated by either a configuration update procedure or a re-registration procedure.

In the above-described arrangement, the first and second embodiments,

the registration request is initiated if the third message is received and it is determined that a timer for an EAC mode of the first slice has not timed out.

The embodiment of the application also provides a communication device, which comprises:

A first processing unit, configured to determine that the number of terminals registered by the first slice satisfies a first condition;

a first sending unit, configured to send a first message to an AMF, where the first message is configured to notify that an EAC mode for the first slice is deactivated.

a first receiving unit, configured to receive a first message sent by the nsacp;

and the second sending unit is used for sending a second message to the access network equipment, wherein the second message at least indicates that the number of the terminals registered by the first slice is free.

a second receiving unit, configured to receive a second message sent by the AMF;

and the third sending unit is used for sending a third message to the terminals in the service range, wherein the third message is used for informing that the number of the terminals registered by the first slice is free.

a third receiving unit, configured to receive a third message sent by the access network device; the third message is used for notifying that the number of the terminals registered by the first slice is free.

The embodiment of the application also provides an NSACF, which comprises the following steps: a first communication interface and a first processor; wherein,,

The first processor is used for determining that the number of terminals registered by the first slice meets a first condition;

the first communication interface is configured to send a first message to an AMF, the first message being configured to notify EAC mode deactivation for the first slice.

The embodiment of the application also provides an AMF, which comprises: a second communication interface and a second processor; wherein,,

the second communication interface is configured to:

receiving a first message sent by NSACF;

The embodiment of the application also provides access network equipment, which comprises: a third communication interface and a third processor; wherein,,

the third communication interface is configured to:

receiving a second message sent by the AMF;

The embodiment of the application also provides a terminal, which comprises: a fourth communication interface and a fourth processor; wherein,,

the fourth communication interface is configured to receive a third message sent by the access network device; the third message is used for notifying that the number of the terminals registered by the first slice is free.

The embodiment of the application also provides an NSACF, which comprises the following steps: a first processor and a first memory for storing a computer program capable of running on the processor,

the first processor is used for executing the steps of any method on the NSACF side when the computer program is run.

The embodiment of the application also provides an AMF, which comprises: a second processor and a second memory for storing a computer program capable of running on the processor,

and the second processor is used for executing any step of the AMF side method when the computer program is run.

The embodiment of the application also provides access network equipment, which comprises: a third processor and a third memory for storing a computer program capable of running on the processor,

and the third processor is used for executing any method step at the access network equipment side when running the computer program.

The embodiment of the application also provides a terminal, which comprises: a fourth processor and a fourth memory for storing a computer program capable of running on the processor,

wherein the fourth processor is configured to execute the steps of any one of the methods on the terminal side when running the computer program.

The embodiment of the application also provides a storage medium, on which a computer program is stored, where the computer program when executed by a processor implements the steps of any method on the nsacp side, or implements the steps of any method on the AMF side, or implements the steps of any method on the access network device side, or implements the steps of any method on the terminal side.

According to the communication method, the device, the related equipment and the storage medium, NSACF determines that the number of terminals registered by a first slice meets a first condition, and sends a first message to AMF, wherein the first message is used for notifying EAC mode deactivation for the first slice; the AMF receives a first message sent by the NSACF, and sends a second message to the access network equipment, wherein the second message at least indicates that the number of terminals registered by the first slice is free; the access network equipment receives a second message sent by the AMF, and sends a third message to the terminals in the service range, wherein the third message is used for informing that the number of the terminals registered by the first slice is free; and the terminal receives the third message sent by the access network equipment. According to the scheme provided by the embodiment of the application, through an interaction mechanism between the NSACF and the AMF, communication between the NSACF and the AMF can be realized under the condition that the number of terminals registered by the first slice meets a specific condition (namely, a first condition), so that the AMF can communicate with access network equipment based on the usage state of the first slice, and the access network equipment can communicate with the terminals based on the usage state of the first slice, so that the terminals can acquire the usage state of the first slice, and can register to the first slice in time when the terminals need to register to the first slice; therefore, under the condition that the terminal registers a network slice and is refused, the condition that the registration request which is initiated by the terminal again is refused by the NSACF can be reduced, and the waste of network and air interface resources can be reduced.

Drawings

Fig. 1 is a schematic flow chart of a communication method according to an embodiment of the present application;

FIG. 2 is a flow chart of another communication method according to an embodiment of the present application;

fig. 3 is a flow chart of a third communication method according to an embodiment of the present application;

fig. 4 is a flow chart of a fourth communication method according to an embodiment of the present application;

FIG. 5 is a flow chart of a communication method according to an embodiment of the application;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a third communication device according to an embodiment of the present application

Fig. 9 is a schematic structural diagram of a fourth communication device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of an nsaacf according to an embodiment of the present application

Fig. 11 is a schematic structural diagram of an AMF according to an embodiment of the application;

fig. 12 is a schematic structural diagram of an access network device according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a communication system according to an embodiment of the present application.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings and examples.

In the related art, a network management center provides a fixed resource for each network slice (which may be referred to as a slice), that is, a maximum value of the number of users accessing a network slice is stored in an nsacp, the nsacp sets a threshold according to the maximum value, when the number of terminals that a network slice requests to access reaches the threshold, the nsacp notifies an AMF to activate an EAC mechanism, and after receiving the notification, the AMF performs Network Slice Admission Control (NSAC) during the process of requesting the registration of the terminal to the slice, specifically, if the total number of terminals accessed by the network slice does not exceed the maximum value, the terminal may successfully register to the network slice, otherwise, the terminal will be refused to register the network slice. When the number of terminals requesting access by a network slice decreases from above to below the threshold, the nsacp notifies the AMF to deactivate the EAC mechanism, and after the AMF receives the notification, the AMF performs numerical statistics and updates the nsacp after the terminals request to register the network slice successfully.

Wherein when the terminal is denied registration of the network slice after activating the EAC mechanism, the AMF sends a denial reason and a timer (optional) to the terminal, and the denial reason indicates that the terminal is denied registration of the slice because the number of access terminals of the slice is saturated, and the terminal can re-request the slice for registration after the time set by the timer has arrived.

Here, when the terminal initiates the request to register the slice again after the timer arrives, the terminal does not know whether the number of the terminals currently registered by the slice is saturated, so that the situation that the terminal is rejected again still exists, so that the situation that the frequent request of the terminal is rejected due to too short time duration setting of the timer can be caused, the service experience of the terminal can be affected due to too long time duration setting of the timer, and the situation that resources are idle may exist.

Based on this, in various embodiments of the present application, a solution for notifying a slice usage state is provided, so that a terminal can learn a slice usage state, and thus can register to a slice in time when the terminal needs to register to the slice.

An embodiment of the present application provides a communication method applied to nsacp, as shown in fig. 1, including:

Step 101: determining that the number of terminals registered by the first slice meets a first condition;

step 102: the first message is sent to the AMF.

Here, it can be understood that in the case where the number of terminals registered by the first slice satisfies the first condition, the nsacp transmits the first message to the AMF.

In practical application, the number of terminals registered by the first slice refers to the number of terminals currently accessed to the first slice, and may also be referred to as the usage of the first slice. In addition, the terminal may also be referred to as a User Equipment (UE), and may also be referred to as a User.

In an embodiment, the first condition may include the number of terminals registered by the first slice dropping from a first number to a first threshold.

Here, the first threshold may be set according to the need. Illustratively, since the network management center will provide a fixed resource for each slice, in other words, the network management center will determine a maximum value (which may also be referred to as a maximum terminal value or a threshold value, which will be referred to as a second threshold in the following description) of the number of terminals accessing the first slice, and the nsacp will store the second threshold; thus, the nsaacf may set the first threshold according to the second threshold (i.e., the first threshold needs to be smaller than the second threshold).

In actual application, when the number of terminals registered by the first slice is greater than or equal to the first threshold, the nsacp may notify the AMF to activate the EAC mode (may also be referred to as an EAC mechanism), and after the AMF receives the notification, perform NSAC in a process that the terminal requests to register the first slice: enabling the terminal to register to the first slice successfully under the condition that the number of the terminals registered by the first slice is smaller than the second threshold value; in case the number of terminals registered by the first slice is equal to the second threshold, the registration request of the terminal is rejected (i.e. NSSAI of the generation request (english may be expressed as Requested NSSAI)).

In actual use, the first number may be equal to the second threshold; alternatively, the first number may be greater than the first threshold and less than the second threshold.

When the method is actually applied, the number of the terminals registered by the first slice meets the first condition, which can indicate that the number of the terminals registered by the first slice is free, and the NSACF needs to inform the AMF to deactivate the EAC mode, so that the AMF does not perform NSAC in the process that the terminals request to register the first slice, and the terminals can be successfully registered to the first slice.

Based on this, in an embodiment, the first message may be used to notify EAC mode deactivation for the first slice.

Here, the first message may include at least one of:

identification of the first slice.

In actual application, the format of the first identifier can be set according to requirements; the identification of the first slice may include S-NSSAI.

In actual application, after the AMF receives the first message, the EAC mode may be deactivated, that is, NSAC is not performed in the process that the terminal requests to register the first slice, so that the terminal can register the first slice successfully. After the terminal is successfully registered in the first slice, the AMF may count the number of terminals registered in the first slice (referred to as a second number in the following description), and send the second number to the nsacp, so that the nsacp updates the number of terminals registered in the first slice, and determines whether to notify the AMF to activate the EAC mode by determining whether the second number is greater than or equal to the first threshold.

In actual application, after the AMF receives the first message, notifying the access network equipment that the number of the terminals registered by the first slice is free, so that the access network equipment can notify the terminals in the service range that the number of the terminals registered by the first slice is free, and the terminals can acquire the consumption state of the first slice, so that the terminals can register to the first slice in time when the terminals need to register to the first slice; therefore, under the condition that the terminal registers a network slice and is refused, the condition that the registration request which is initiated by the terminal again is refused by the NSACF can be reduced, and the waste of network and air interface resources can be reduced.

Correspondingly, the embodiment of the application also provides a communication method, which is applied to the AMF, as shown in fig. 2, and comprises the following steps:

step 201: receiving a first message sent by NSACF;

step 202: and sending a second message to the access network equipment.

Here, it can be appreciated that, in case of receiving the first message sent by the nsaf, the AMF sends the second message to the access network device.

In practice, the access network device may be referred to as a radio access network (RAN, radio Access Network) device.

Wherein in an embodiment, the second message indicates that at least the number of terminals registered by the first slice is free.

In practical application, after receiving the second message, the access network device may send a third message to the terminals in the service range, where the third message is used to notify that the number of the terminals registered by the first slice is free.

In practical application, after receiving the second message, the access network device may specifically broadcast the third message to the terminal in the service range. Accordingly, the second message may also indicate that the third message is broadcast.

Based on this, in an embodiment, the second message may include at least one of:

An identification of the first slice;

first information indicating broadcasting of the third message.

In practical application, the format of the second identifier can be set according to requirements.

In an embodiment, the sending the second message to the access network device may include:

and sending a second message to the access network equipment through an N2 interface.

Correspondingly, the embodiment of the application also provides a communication method, which is applied to the access network equipment, as shown in fig. 3, and comprises the following steps:

step 301: receiving a second message sent by the AMF;

step 302: and sending a third message to the terminal in the service range.

Here, in an embodiment, the specific implementation of step 301 may include:

and receiving a second message sent by the AMF through the N2 interface.

It may be appreciated that, in case of receiving the second message sent by the AMF, the access network device sends the third message to the terminals within service range.

In one embodiment, the third message is used to notify that the number of terminals registered by the first slice is free.

In an embodiment, when the second message carries the first information, the specific implementation of step 302 may include:

Broadcasting the third message.

Correspondingly, the embodiment of the application also provides a communication method, which is applied to the terminal, as shown in fig. 4, and comprises the following steps:

step 401: and receiving a third message sent by the access network equipment.

Here, the third message is used to notify that the number of terminals registered by the first slice is free.

In actual application, in the EAC mode, when the terminal registers that the first slice is refused, the AMF may send a refusal reason to the terminal, where the refusal reason indicates that the terminal registers that the first slice is refused because the number of terminals registered by the first slice is saturated (i.e. equal to the second threshold); and the terminal may re-request registration of the first slice upon receipt of the third message. Therefore, under the condition that the terminal registers a network slice and is refused, the condition that the registration request which is initiated by the terminal again is refused by the NSACF can be reduced, and the waste of network and air interface resources can be reduced.

Based on this, in an embodiment, the terminal may include a terminal that registers that the first slice was rejected.

In an embodiment, as shown in fig. 4, the method may further include:

Step 402: a registration request is initiated.

Here, the registration request is for requesting registration of the first slice.

In actual application, the terminal can initiate a registration request through a configuration updating flow or a re-registration flow.

In actual application, in the EAC mode, when the terminal is refused to register the first slice, the AMF may further send a timer to the terminal, so that the terminal may re-request to register the first slice after the time set by the timer has arrived. And in the case that the terminal receives the third message, the terminal may request to register the first slice in advance even if the time set by the timer does not arrive (i.e., the timer does not timeout). Therefore, the situation that the registration request initiated by the terminal again is refused by the NSACF can be reduced, and the waste of network and air interface resources can be reduced.

Based on this, in an embodiment, the registration request is initiated if the third message is received and it is determined that a timer for EAC mode of the first slice has not timed out.

According to the communication method provided by the embodiment of the application, NSACF determines that the number of terminals registered by a first slice meets a first condition, and sends a first message to AMF, wherein the first message is used for notifying EAC mode deactivation for the first slice; the AMF receives a first message sent by the NSACF, and sends a second message to the access network equipment, wherein the second message at least indicates that the number of terminals registered by the first slice is free; the access network equipment receives a second message sent by the AMF, and sends a third message to the terminals in the service range, wherein the third message is used for informing that the number of the terminals registered by the first slice is free; and the terminal receives the third message sent by the access network equipment. According to the scheme provided by the embodiment of the application, through an interaction mechanism between the NSACF and the AMF, communication between the NSACF and the AMF can be realized under the condition that the number of terminals registered by the first slice meets a specific condition (namely, a first condition), so that the AMF can communicate with access network equipment based on the usage state of the first slice, and the access network equipment can communicate with the terminals based on the usage state of the first slice, so that the terminals can acquire the usage state of the first slice, and can register to the first slice in time when the terminals need to register to the first slice; therefore, under the condition that the terminal registers a network slice and is refused, the condition that the registration request which is initiated by the terminal again is refused by the NSACF can be reduced, and the waste of network and air interface resources can be reduced.

The present application is described in further detail below in connection with examples of application.

In this application embodiment, the terminal is referred to as UE; the EAC mode is called EAC mechanism; the number of terminals accessing the first slice is called the usage state of the first slice; the access network device is denoted RAN.

In this application embodiment, when the number of UEs accessed by the first slice decreases from above the first threshold to below the first threshold, the nsacp notifies the AMF to deactivate the EAC mechanism, the AMF generates a piece of information about the usage status of the first slice, and sends the information to the RAN, and instructs the RAN to broadcast the information to UEs in the current service range; if the UE wants to request the service of the first slice, a slice registration request may be generated according to the broadcasted information.

Specifically, as shown in fig. 5, the communication method of the present application embodiment may include the following steps:

step 501: the nsacp finds that the number of UEs registered by the first slice drops from a high point (i.e., the first number described above) to a first threshold set by itself; step 502 is then performed;

step 502: the NSACF sends an Nnsacf_NumberOfUEsPerSliceEACNotory message (namely the first message) to the AMF; step 503 is then performed;

Here, the nnssacf_numberofuespersliceacn_notify message includes a slice identifier (i.e., an identifier of the first slice) in which the EAC mode is deactivated, and a flag (i.e., the first identifier) for setting the EAC flag (english may be expressed as flag) to be deactivated;

step 503: the AMF sends an N2 message (i.e., the second message described above) to the RAN; step 504 is then performed;

here, the N2 message includes an identification of the first slice, a status identification (i.e., the second identification) indicating that the number of UEs currently registered by the first slice is free, and an identification (i.e., the first information) indicating that the RAN broadcasts the N2 message;

step 504: the RAN broadcasts according to the N2 message sent by the AMF; step 505 is then performed;

here, the message (i.e., the third message) broadcasted by the RAN is used to notify UEs in the service range that the number of UEs currently registered by the first slice is free, and a request for registration can be made;

step 505: after receiving the broadcast message, the UE initiates a configuration update procedure or a re-registration procedure to request registration of the first slice.

Here, the priority of the broadcast message is higher than that of the timer of the EAC mode of the first slice, in other words, after the UE receives the broadcast message, the UE may directly initiate a configuration update procedure or a re-registration procedure to request registration of the first slice even if the time set by the timer does not arrive.

According to the scheme provided by the application embodiment, the consumption state of the slice is notified to the UE in a broadcast mode through an interaction mechanism between NSACF, AMF, RAN and the UE, the UE can flexibly carry out the slice registration request according to the broadcast message, the situation that the UE frequently initiates the registration request and is repeatedly refused after being refused because the quantity of the UE accessed by the slice is saturated is avoided, and therefore waste of network and air interface resources can be reduced, and the situation that the service experience of the UE is influenced due to overlong timer time is avoided.

In order to implement the nsaacf-side method in the embodiment of the present application, the embodiment of the present application further provides a communication device, which is disposed on the nsaacf, as shown in fig. 6, and the device includes:

a first processing unit 601, configured to determine that the number of terminals registered by the first slice satisfies a first condition;

a first sending unit 602, configured to send a first message to an AMF, where the first message is configured to notify that an EAC mode for the first slice is deactivated.

In practical applications, the first processing unit 601 may be implemented by a processor in the communication device; the first transmitting unit 602 may be implemented by a communication interface in a communication device.

In order to implement the method on the AMF side in the embodiment of the present application, the embodiment of the present application further provides a communication device, which is disposed on the AMF, as shown in fig. 7, and the device includes:

A first receiving unit 701, configured to receive a first message sent by the nsacp;

a second sending unit 702 is configured to send a second message to the access network device, where the second message indicates that at least the number of terminals registered by the first slice is free.

In an embodiment, the second sending unit 701 is specifically configured to send a second message to the access network device through an N2 interface.

In practical applications, the first receiving unit 701 and the second sending unit 702 may be implemented by a communication interface in a communication device.

In order to implement the method at the access network device side in the embodiment of the present application, the embodiment of the present application further provides a communication device, which is disposed on the access network device, as shown in fig. 8, and the device includes:

a second receiving unit 801, configured to receive a second message sent by the AMF;

a third sending unit 802, configured to send a third message to a terminal in the service range, where the third message is used to notify that the number of terminals registered by the first slice is free.

In one embodiment, the third sending unit 802 is specifically configured to broadcast the third message.

In an embodiment, the second receiving unit 801 is specifically configured to receive, through an N2 interface, a second message sent by the AMF.

In practical applications, the second receiving unit 801 and the third transmitting unit 802 may be implemented by a communication interface in a communication device.

In order to implement the method at the terminal side in the embodiment of the present application, the embodiment of the present application further provides a communication device, which is disposed on a terminal, as shown in fig. 9, and the device includes:

a third receiving unit 901, configured to receive a third message sent by the access network device; the third message is used for notifying that the number of the terminals registered by the first slice is free.

In an embodiment, the terminal comprises a terminal that registers that the first slice was rejected; the apparatus further comprises a registration unit 902 for initiating a registration request for requesting registration of the first slice.

In one embodiment, the registration unit 902 is specifically configured to initiate a registration request through a configuration update procedure or a re-registration procedure.

In an embodiment, the registration unit 902 is further configured to initiate the registration request if the third message is received and it is determined that a timer for the EAC mode of the first slice has not timed out.

In practical application, the third receiving unit 901 may be implemented by a communication interface in a communication device; the registration unit 902 may be implemented by a processor in the communication device in combination with a communication interface.

It should be noted that: in the communication device provided in the above embodiment, only the division of each program module is used for illustration, and in practical application, the process allocation may be performed by different program modules according to needs, that is, the internal structure of the device is divided into different program modules, so as to complete all or part of the processes described above. In addition, the communication device and the communication method provided in the foregoing embodiments belong to the same concept, and specific implementation processes of the communication device and the communication method are detailed in the method embodiments and are not described herein again.

Based on the hardware implementation of the program module, and in order to implement the method on the nsaacf side in the embodiment of the present application, the embodiment of the present application further provides an nsaacf, as shown in fig. 10, the nsaacf 1000 includes:

a first communication interface 1001 capable of information interaction with the AMF;

the first processor 1002 is connected to the first communication interface 1001, so as to implement information interaction with the AMF, and is configured to execute the methods provided by one or more of the above-described nsaf side solutions when running a computer program. And the computer program is stored on the first memory 1003.

Specifically, the first processor 1002 is configured to determine that the number of terminals registered by the first slice meets a first condition;

The first communication interface 1001 is configured to send a first message to an AMF, where the first message is configured to notify that an EAC mode for the first slice is deactivated.

It should be noted that: the specific processing of the first processor 1002 and the first communication interface 1001 may be understood with reference to the above-described methods.

Of course, in actual practice, the various components in the nsaf 1000 are coupled together by a bus system 1004. It is to be appreciated that the bus system 1004 serves to facilitate connective communication between these components. The bus system 1004 includes a power bus, a control bus, and a status signal bus in addition to the data bus. The various buses are labeled in fig. 10 as bus system 1004 for clarity of illustration.

The first memory 1003 in the embodiment of the present application is used to store various types of data to support the operation of the nsaf 1000. Examples of such data include: any computer program for operating on the nsaf 1000.

The method disclosed in the embodiments of the present application may be applied to the first processor 1002 or implemented by the first processor 1002. The first processor 1002 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the method described above may be performed by integrated logic circuits of hardware or instructions in software form in the first processor 1002. The first processor 1002 may be a general purpose processor, a digital signal processor (DSP, digital Signal Processor), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The first processor 1002 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied in a hardware decoding processor or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the first memory 1003, and the first processor 1002 reads information in the first memory 1003, in combination with its hardware, to perform the steps of the method as described above.

In an exemplary embodiment, the nsaf 1000 may be implemented by one or more application specific integrated circuits (ASIC, application Specific Integrated Circuit), DSPs, programmable logic devices (PLD, programmable Logic Device), complex programmable logic devices (CPLD, complex Programmable Logic Device), field-programmable gate arrays (FPGA, field-Programmable Gate Array), general purpose processors, controllers, microcontrollers (MCU, micro Controller Unit), microprocessors (Microprocessor), or other electronic components for performing the aforementioned methods.

Based on the hardware implementation of the program module, and in order to implement the method on the AMF side in the embodiment of the present application, the embodiment of the present application further provides an AMF, as shown in fig. 11, the AMF 1100 includes:

a second communication interface 1101 capable of information interaction with the nsacp and the access network device;

the second processor 1102 is connected to the second communication interface 1101, so as to implement information interaction with the nsaf and the access network device, and is configured to execute the method provided by one or more of the technical solutions on the AMF side when running a computer program. And the computer program is stored on the second memory 1103.

Specifically, the second communication interface 1101 is configured to:

receiving a first message sent by NSACF;

Wherein in an embodiment, the second communication interface 1101 is further configured to send a second message to the access network device through an N2 interface.

It should be noted that: the specific processing procedure of the second communication interface 1101 can be understood by referring to the above method.

Of course, in actual practice, the various components in AMF1100 are coupled together via bus system 1104. It is to be appreciated that the bus system 1104 is employed to facilitate connected communications between the components. The bus system 1104 includes a power bus, a control bus, and a status signal bus in addition to the data bus. But for clarity of illustration, the various buses are labeled as bus system 1104 in fig. 11.

The second memory 1103 in the embodiment of the present application is used to store various types of data to support the operation of the AMF 1100. Examples of such data include: any computer program for operating on AMF 1100.

The method disclosed in the embodiments of the present application may be applied to the second processor 1102 or implemented by the second processor 1102. The second processor 1102 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the method may be implemented by an integrated logic circuit of hardware or an instruction in software form in the second processor 1102. The second processor 1102 may be a general purpose processor, DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The second processor 1102 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied in a hardware decoding processor or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the second memory 1103, said second processor 1102 reading information in the second memory 1103, performing the steps of the method described above in connection with its hardware.

In an exemplary embodiment, the AMF 1100 may be implemented by one or more ASIC, DSP, PLD, CPLD, FPGA, general purpose processors, controllers, MCU, microprocessor, or other electronic elements for performing the foregoing methods.

Based on the hardware implementation of the program modules, and in order to implement the method on the access network device side in the embodiment of the present application, the embodiment of the present application further provides an access network device, as shown in fig. 12, where the access network device 1200 includes:

a third communication interface 1201 capable of information interaction with the AMF and the terminal;

and a third processor 1202, connected to the third communication interface 1201, for implementing information interaction with the AMF and the terminal, and executing the method provided by one or more technical solutions on the access network device side when running a computer program. And the computer program is stored on the third memory 1203.

Specifically, the third communication interface 1201 is configured to:

receiving a second message sent by the AMF;

Wherein, in an embodiment, the third communication interface 1201 is further configured to broadcast the third message.

In an embodiment, the third communication interface 1201 is further configured to receive a second message sent by the AMF through the N2 interface.

It should be noted that: the specific processing procedure of the third communication interface 1201 can be understood with reference to the above method.

Of course, in actual practice, the various components in access network device 1200 are coupled together via bus system 1204. It is appreciated that the bus system 1204 is used to facilitate connected communications between these components. The bus system 1204 includes a power bus, a control bus, and a status signal bus in addition to the data bus. But for clarity of illustration, the various buses are labeled as bus system 1204 in fig. 12.

The third memory 1203 in the embodiment of the present application is used to store various types of data to support the operation of the access network device 1200. Examples of such data include: any computer program for operating on the access network device 1200.

The method disclosed in the embodiments of the present application may be applied to the third processor 1202 or implemented by the third processor 1202. The third processor 1202 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the method may be performed by integrated logic circuits of hardware or instructions in software form in the third processor 1202. The third processor 1202 may be a general purpose processor, DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The third processor 1202 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied in a hardware decoding processor or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the third memory 1203, said third processor 1202 reading the information in the third memory 1203 and performing the steps of the method described above in connection with its hardware.

In an exemplary embodiment, the access network device 1200 may be implemented by one or more ASIC, DSP, PLD, CPLD, FPGA, general purpose processors, controllers, MCU, microprocessor, or other electronic elements for performing the foregoing methods.

Based on the hardware implementation of the program modules, and in order to implement the method at the terminal side in the embodiment of the present application, the embodiment of the present application further provides a terminal, as shown in fig. 13, the terminal 1300 includes:

a fourth communication interface 1301, capable of performing information interaction with an access network device;

and a fourth processor 1302, connected to the fourth communication interface 1301, for implementing information interaction with the access network device, where the fourth processor is configured to execute, when running a computer program, a method provided by one or more technical solutions on the terminal side. And the computer program is stored on the fourth memory 1303.

Specifically, the fourth communication interface 1301 is configured to receive a third message sent by the access network device; the third message is used for notifying that the number of the terminals registered by the first slice is free.

In an embodiment, the terminal 1300 includes a terminal that registers that the first slice was rejected; the fourth processor 1302 is configured to initiate a registration request, where the registration request is for requesting registration of the first slice.

In an embodiment, the fourth processor 1302 is further configured to initiate a registration request through a configuration update procedure or a re-registration procedure.

In an embodiment, the fourth processor 1302 is further configured to initiate the registration request if the third message is received and it is determined that a timer for the EAC mode of the first slice has not timed out.

It should be noted that: the specific processing procedure of the fourth communication interface 1301 and the fourth processor 1302 can be understood with reference to the above method.

Of course, in actual practice, the various components in terminal 1300 are coupled together via bus system 1304. It is appreciated that the bus system 1304 is used to facilitate connected communications between the components. The bus system 1304 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration, the various buses are labeled as bus system 1304 in fig. 13.

The fourth memory 1303 in the embodiment of the present application is used to store various types of data to support the operation of the terminal 1300. Examples of such data include: any computer program for operating on terminal 1300.

The method disclosed in the embodiments of the present application may be applied to the fourth processor 1302, or may be implemented by the fourth processor 1302. The fourth processor 1302 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method may be implemented by an integrated logic circuit of hardware or an instruction in software form in the fourth processor 1302. The fourth processor 1302 described above may be a general purpose processor, DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The fourth processor 1302 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied in a hardware decoding processor or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the fourth memory 1303, and the fourth processor 1302 reads information in the fourth memory 1303, and performs the steps of the method in combination with hardware thereof.

In an exemplary embodiment, the terminal 1300 may be implemented by one or more ASIC, DSP, PLD, CPLD, FPGA, general-purpose processors, controllers, MCU, microprocessor, or other electronic elements for performing the foregoing methods.

It is to be understood that the memories (the first memory 1003, the second memory 1103, the third memory 1203, the fourth memory 1303) of the embodiments of the present application may be volatile memories or nonvolatile memories, and may include both volatile and nonvolatile memories. Wherein the nonvolatile Memory may be Read Only Memory (ROM), programmable Read Only Memory (PROM, programmable Read-Only Memory), erasable programmable Read Only Memory (EPROM, erasable Programmable Read-Only Memory), electrically erasable programmable Read Only Memory (EEPROM, electrically Erasable Programmable Read-Only Memory), magnetic random access Memory (FRAM, ferromagnetic random access Memory), flash Memory (Flash Memory), magnetic surface Memory, optical disk, or compact disk Read Only Memory (CD-ROM, compact Disc Read-Only Memory); the magnetic surface memory may be a disk memory or a tape memory. The volatile memory may be random access memory (RAM, random Access Memory), which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (SRAM, static Random Access Memory), synchronous static random access memory (SSRAM, synchronous Static Random Access Memory), dynamic random access memory (DRAM, dynamic Random Access Memory), synchronous dynamic random access memory (SDRAM, synchronous Dynamic Random Access Memory), double data rate synchronous dynamic random access memory (ddr SDRAM, double Data Rate Synchronous Dynamic Random Access Memory), enhanced synchronous dynamic random access memory (ESDRAM, enhanced Synchronous Dynamic Random Access Memory), synchronous link dynamic random access memory (SLDRAM, syncLink Dynamic Random Access Memory), direct memory bus random access memory (DRRAM, direct Rambus Random Access Memory). The memory described in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

In order to implement the method provided by the embodiment of the present application, the embodiment of the present application further provides a communication system, as shown in fig. 14, where the system includes: nsaf 1401, AMF 1402, access network device 1403, and terminal 1404.

Here, it should be noted that: specific processing procedures of the nsaf 1401, the AMF 1402, the access network device 1403 and the terminal 1404 have been described in detail above, and will not be described in detail here.

In an exemplary embodiment, the present application further provides a storage medium, i.e., a computer storage medium, specifically a computer readable storage medium, for example, including a first memory 1003 storing a computer program executable by the first processor 1002 of the nsaf 1000 to perform the steps described in the foregoing nsaf-side method. For example, the second memory 1103 may store a computer program that may be executed by the second processor 1102 of the AMF 1100 to perform the steps of the AMF-side method described above. Further for example, the third memory 1203 may be configured to store a computer program, where the computer program may be executed by the third processor 1202 of the access network device 1200 to perform the steps of the method on the access network device side described above. Further for example, the fourth memory 1303 may include a computer program stored thereon, which may be executed by the fourth processor 1302 of the terminal 1300 to perform the steps of the method on the terminal side described above. The computer readable storage medium may be FRAM, ROM, PROM, EPROM, EEPROM, flash Memory, magnetic surface Memory, optical disk, or CD-ROM.

It should be noted that: "first," "second," etc. are used to distinguish similar objects and not necessarily to describe a particular order or sequence.

In addition, the embodiments described in the present application may be arbitrarily combined without any collision.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application.

Claims

1. A communication method, applied to a network slice admission control function nsafc, comprising:

a first message is sent to an access and mobility management function, AMF, informing of advanced availability query, EAC, mode deactivation for the first slice.

2. The method of claim 1, wherein the first condition comprises a number of terminals for which the first slice is registered dropping from a first number to a first threshold.

3. The method according to claim 1 or 2, wherein the first message comprises at least one of:

identification of the first slice.

4. A communication method, applied to an AMF, comprising:

receiving a first message sent by NSACF;

5. The method of claim 4, wherein the second message comprises at least one of:

identification of the first slice;

first information indicating broadcasting of a third message.

6. The method of claim 4, wherein the second message is sent to the access network device over an N2 interface.

7. The method according to any of claims 4 to 6, wherein the first message comprises at least one of:

identification of the first slice.

8. A method of communication, for use with an access network device, comprising:

receiving a second message sent by the AMF;

9. The method of claim 8, wherein the step of determining the position of the first electrode is performed,

broadcasting the third message.

10. The method of claim 8, wherein the step of determining the position of the first electrode is performed,

and receiving a second message sent by the AMF through the N2 interface.

11. The method according to any of claims 8 to 10, wherein the second message comprises at least one of:

identification of the first slice;

first information indicating broadcasting of the third message.

12. A communication method, applied to a terminal, comprising:

13. The method of claim 12, wherein the terminal comprises a terminal that registers that the first slice was rejected; the method further comprises the steps of:

14. The method of claim 13, wherein the step of determining the position of the probe is performed,

15. The method according to claim 13 or 14, wherein,

16. A communication device, comprising:

17. A communication device, comprising:

18. A communication device, comprising:

19. A communication device, comprising:

20. An nsaacf, comprising: a first communication interface and a first processor; wherein,,

21. An AMF, comprising: a second communication interface and a second processor; wherein,,

the second communication interface is configured to:

receiving a first message sent by NSACF;

22. An access network device, comprising: a third communication interface and a third processor; wherein,,

the third communication interface is configured to:

receiving a second message sent by the AMF;

23. A terminal, comprising: a fourth communication interface and a fourth processor; wherein,,

24. An nsaacf, comprising: a first processor and a first memory for storing a computer program capable of running on the processor,

wherein the first processor is adapted to perform the steps of the method of any of claims 1 to 3 when the computer program is run.

25. An AMF, comprising: a second processor and a second memory for storing a computer program capable of running on the processor,

wherein the second processor is adapted to perform the steps of the method of any of claims 4 to 7 when the computer program is run.

26. An access network device, comprising: a third processor and a third memory for storing a computer program capable of running on the processor,

wherein the third processor is adapted to perform the steps of the method of any of claims 8 to 11 when the computer program is run.

27. A terminal, comprising: a fourth processor and a fourth memory for storing a computer program capable of running on the processor,

wherein the fourth processor is adapted to perform the steps of the method of any of claims 12 to 15 when the computer program is run.

28. A storage medium having stored thereon a computer program, which when executed by a processor, performs the steps of the method of any one of claims 1 to 3, or performs the steps of the method of any one of claims 4 to 7, or performs the steps of the method of any one of claims 8 to 11, or performs the steps of the method of any one of claims 12 to 15.