CN117692893A

CN117692893A - Control method, device, equipment and medium for terminal access network

Info

Publication number: CN117692893A
Application number: CN202211079719.XA
Authority: CN
Inventors: 董嘉; 杜晓宁
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: 2022-09-05
Filing date: 2022-09-05
Publication date: 2024-03-12

Abstract

The invention provides a control method, a device, equipment and a medium for a terminal to access a network. The method applied to the AMF side comprises the following steps: receiving a first message sent by a base station, wherein the first message carries the NR-based VoNR supporting capability of the terminal; according to the VoNR supporting capability of the terminal, a second message or a third message for controlling the terminal to access the target network or the visiting network is sent to the terminal; the second message is used for rejecting the terminal to access the target network or the visiting network when the VoNR supporting capability of the terminal is that the VoNR is not supported; the third message is used for allowing the terminal to access the target network or the visited network when the VoNR supporting capability of the terminal is that the VoNR is not supported, and indicating that the target network or the visited network does not support the IMS voice of the IP multimedia system. The scheme of the invention can flexibly control the terminal which does not support the VoNR capability, and avoid the problem that the terminal cannot use the VoNR voice after being accessed into the network.

Description

Control method, device, equipment and medium for terminal access network

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a device for controlling a terminal to access to a network.

Background

5G core network foreign network roaming (also known as "5G core network roaming") refers to: in an independent networking (SA) mode, a home network side user uses 5G services by accessing a visited network side 5G network in a roaming area. 5G access networks and core networks of both sides of the 5G core network roaming operators are independently constructed and managed, and users are independently managed. The 5G core network roaming is realized by adopting a home routing mode, namely roaming user data returns to a home network, and the service is provided by the home network.

The voice traffic of VoNR (Voice over New Radio, voice over new wireless NR) is provided to the roaming user by the IMS (IP Multimedia Subsystem, IP multimedia system) of the home network side. The wireless access network and the core network of the visiting network should cooperate with the home network to support and establish an IMS signaling bearing of 5 QI=5, and support and establish two special bearing of 5 QI=1 and 5 QI=2 in the call establishment process, wherein 5QI is a 5G QoS Identifier (5G QoS Identifier), which is an indication of a group of QoS (quality of service) data flows between a labeling terminal (UE) and a core network User Plane Function (UPF) in the 5G network, including priority, packet delay or packet error rate, etc.

When the terminal does not support the VoNR, the user can use only the data service when using the 5G core network roaming service.

Based on the prior art, for the EPS Fallback (evolved packet system Fallback) end user of telecommunication and communication, when the end user is in the strong coverage area of the mobile and broadcast television 5G SA network, the end user can enter the mobile and broadcast television 5G SA network. Because the mobile and broadcast television only share the 5G SA network for telecommunication and communication users, the terminal which does not support VoNR can not use voice function and can not actively return to the home 4/5G network.

Similarly, the same problem exists when mobile and broadcast end users not supporting VoNR roam into telecommunications and connectivity networks.

Disclosure of Invention

The invention aims to provide a control method, a device, equipment and a medium for a terminal to access a network. By informing the core network of the VoNR supporting capability of the terminal, the core network can allow or reject the terminal to access the network aiming at the terminal which does not support the VoNR capability, thereby realizing flexible control of the terminal to access the network and avoiding the problem that the VoNR voice cannot be used after the terminal is accessed to the network.

In order to solve the technical problems, the technical scheme of the invention is as follows:

a control method for a terminal to access a network, applied to an access and mobility management function AMF, the method comprising:

Receiving a first message sent by a base station, wherein the first message carries the voice VoNR supporting capability of a terminal based on new wireless NR;

according to the VoNR supporting capability of the terminal, a second message or a third message for controlling the terminal to access a target network or a visiting network is sent to the terminal; the second message is used for rejecting the terminal to access the target network or the visiting network when the VoNR supporting capability of the terminal is VoNR not supported; and the third message is used for allowing the terminal to access a target network or a visiting network when the VoNR supporting capability of the terminal is VoNR not supported, and indicating that the target network or the visiting network does not support the IMS voice of the IP multimedia system.

Optionally, before receiving the first message sent by the base station, the method further includes:

according to a preset trigger strategy, a terminal wireless capability checking request is sent to the base station; wherein the first message is a terminal wireless capability check response message.

Optionally, the VoNR supporting capability of the terminal is carried by an extension field of an IMS supporting identification field of the IP multimedia system of the terminal wireless capability check response message, or carried in a preset target field of the terminal wireless capability check response message.

Optionally, the preset trigger policy includes one of the following:

when a terminal initiates a registration process, a terminal wireless capability checking request is sent to the base station;

when a terminal initiates a mobility registration update flow, a terminal wireless capability check request is sent to the base station;

when a terminal initiates a registration process and a network registered before the terminal is not a public land mobile network PLMN registered at the time, sending a terminal wireless capability checking request to the base station;

and when the terminal initiates a mobility registration updating flow crossing the public land mobile network PLMN, sending a terminal wireless capability checking request to the base station.

The embodiment of the invention also provides a control method for the terminal to access the network, which is applied to the base station and comprises the following steps:

sending a first message to an access and mobility management function, AMF, the first message carrying a voice VoNR support capability of the terminal based on a new wireless NR;

receiving a second message or a third message fed back by the AMF according to the VoNR supporting capability of the terminal, and sending the second message or the third message to the terminal; the second message is used for rejecting the terminal to access the target network or the visiting network when the VoNR supporting capability of the terminal is VoNR not supported; and the third message is used for allowing the terminal to access a target network or a visiting network when the VoNR supporting capability of the terminal is VoNR not supported, and indicating that the target network or the visiting network does not support the IMS voice of the IP multimedia system.

Optionally, before sending the first message to the access and mobility management function AMF, the method further comprises:

receiving a terminal wireless capability checking request sent by the AMF; wherein the first message is a terminal wireless capability check response message.

Optionally, receiving the second message or the third message fed back by the AMF according to the VoNR supporting capability of the terminal includes:

and in a registration process or a mobility registration update process of the terminal, receiving a second message or a third message which is fed back by the AMF according to the VoNR supporting capability of the terminal and controls the terminal to access a target network or a visiting network.

Optionally, the second message is a registration rejection response message for the terminal in a registration flow or a mobility registration update flow of the terminal, where the registration rejection response message is used to indicate that the terminal is rejected to access the target network or the visited network; or alternatively

The third message is a registration acceptance response message for the terminal in a registration process or a mobility registration update process of the terminal, where the registration acceptance response message is used to indicate that the terminal is allowed to access a target network or a visited network, and carries indication information that the target network or the visited network does not support an IMS voice function, and the indication information is used to indicate that the terminal tries to access other networks, and does not try to access the target network or the visited network any more in a preset period of time.

The embodiment of the invention also provides a control method for the terminal to access the network, which is applied to an access and mobility management function (AMF), and comprises the following steps:

receiving a registration request of a terminal accessing a target network or a visiting network, wherein the registration request carries a voice VoNR supporting capability of the terminal based on new wireless NR;

Optionally, the VoNR supporting capability of the terminal is carried by an extension field of the terminal use setting field of the registration request.

Optionally, according to the VoNR supporting capability of the terminal, sending a second message or a third message for controlling the terminal to access to the target network or the visited network to the terminal includes:

And in the registration flow or the mobility registration update flow of the terminal, a second message or a third message for controlling the terminal to access a target network or a visiting network is sent to the terminal according to the VoNR supporting capability of the terminal.

The third message is a registration acceptance response message for the terminal in a registration process or a mobility registration update process of the terminal, where the registration acceptance response message is used to indicate that the terminal is allowed to access the target network or the visited network, and carries indication information that the target network or the visited network does not support an IMS voice function, and the indication information is used to indicate that the terminal tries to access other networks, and does not try to access the target network or the visited network any more in a preset period of time.

The embodiment of the invention also provides a control method for the terminal to access the network, which is applied to the terminal and comprises the following steps:

Sending a registration request of an access target network or a visiting network to the AMF through a base station, wherein the registration request carries the voice VoNR supporting capability of the terminal based on new wireless NR;

receiving a second message or a third message fed back by the AMF according to the VoNR supporting capability of the terminal; the second message is used for rejecting the terminal to access the target network or the visiting network when the VoNR supporting capability of the terminal is VoNR not supported; and the third message is used for indicating that the terminal is allowed to access a target network or a visiting network when the VoNR supporting capability of the terminal is VoNR not supported, and indicating that the target network or the visiting network does not support IMS voice of the IP multimedia system.

The embodiment of the invention also provides a control device for the terminal to access the network, which is applied to an access and mobility management function AMF, and comprises the following steps:

the receiving and transmitting module is used for receiving a first message sent by the base station, wherein the first message carries the voice VoNR supporting capability of the terminal based on the new wireless NR; according to the VoNR supporting capability of the terminal, a second message or a third message for controlling the terminal to access a target network or a visiting network is sent to the terminal; the second message is used for rejecting the terminal to access the target network or the visiting network when the VoNR supporting capability of the terminal is VoNR not supported; and the third message is used for allowing the terminal to access the target network or the visiting network when the VoNR supporting capability of the terminal is VoNR not supported, and indicating that the target network or the visiting network does not support the IMS voice of the IP multimedia system.

The embodiment of the invention also provides a control device for the terminal to access the network, which is applied to the base station and comprises the following steps:

a transceiver module, configured to send a first message to an access and mobility management function AMF, where the first message carries a voice VoNR supporting capability of a terminal based on a new wireless NR; receiving a second message or a third message fed back by the AMF according to the VoNR supporting capability of the terminal, and sending the second message or the third message to the terminal; the second message is used for rejecting the terminal to access the target network or the visiting network when the VoNR supporting capability of the terminal is VoNR not supported; and the third message is used for indicating that the terminal is allowed to access a target network or a visiting network when the VoNR supporting capability of the terminal is VoNR not supported, and indicating that the target network or the visiting network does not support IMS voice of the IP multimedia system.

the receiving and transmitting module is used for receiving a registration request of a terminal accessing a target network or a visiting network, wherein the registration request carries the voice VoNR supporting capability of the terminal based on new wireless NR; according to the VoNR supporting capability of the terminal, a second message or a third message for controlling the terminal to access a target network or a visiting network is sent to the terminal; the second message is used for rejecting the terminal to access the target network or the visiting network when the VoNR supporting capability of the terminal is VoNR not supported; and the third message is used for allowing the terminal to access a target network or a visiting network when the VoNR supporting capability of the terminal is VoNR not supported, and indicating that the target network or the visiting network does not support the IMS voice of the IP multimedia system.

The embodiment of the invention also provides a control device for the terminal to access the network, which is applied to the terminal and comprises the following steps:

the receiving and transmitting module is used for sending a registration request of an access target network or a visiting network to the AMF through a base station, wherein the registration request carries the voice VoNR supporting capability of the terminal based on new wireless NR; receiving a second message or a third message fed back by the AMF according to the VoNR supporting capability of the terminal; the second message is used for rejecting the terminal to access the target network or the visiting network when the VoNR supporting capability of the terminal is VoNR not supported; and the third message is used for allowing the terminal to access a target network or a visiting network when the VoNR supporting capability of the terminal is VoNR not supported, and indicating that the target network or the visiting network does not support the IMS voice of the IP multimedia system.

The embodiment of the invention also provides a communication device, which comprises: a processor, a memory storing a computer program which, when executed by the processor, performs the method of any of the above claims.

Embodiments of the present invention also provide a computer readable storage medium storing instructions that, when run on a computer, cause the computer to perform a method as claimed in any one of the preceding claims.

The scheme of the invention at least comprises the following beneficial effects:

according to the scheme, the AMF receives the first message sent by the base station, wherein the first message carries the VoNR supporting capability of the terminal; according to the VoNR supporting capability of the terminal, a second message or a third message for controlling the terminal to access a target network or a visiting network is sent to the terminal; the second message is used for rejecting the terminal to access the target network or the visiting network when the VoNR supporting capability of the terminal is VoNR not supported; the third message is used for allowing the terminal to access a target network or a visiting network when the VoNR supporting capability of the terminal is VoNR not supported, and indicating that the target network or the visiting network does not support IMS voice of the IP multimedia system; therefore, the core network can reject the terminal to access the network and also can allow the terminal to access the network aiming at the terminal which does not support the VoNR capability, and further flexible control of the terminal to access the network is realized.

Drawings

Fig. 1 is a flowchart of a control method for a terminal on an AMF side corresponding to a base station to access a network according to an embodiment of the present invention;

FIG. 2 is a flow chart of a base station and AMF interaction in accordance with an embodiment of the present invention;

fig. 3 is a flowchart of a control method of a terminal on a base station side to access a network according to an embodiment of the present invention;

fig. 4 is a flowchart of a control method for a terminal on the AMF side corresponding to a terminal to access a network according to an embodiment of the present invention;

fig. 5 is a flowchart of a control method of a terminal access network at a terminal side according to an embodiment of the present invention;

fig. 6 is a schematic block diagram of a control device of an AMF-side terminal access network according to an embodiment of the invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

As shown in fig. 1, an embodiment of the present invention provides a control method for a terminal to access a network, which is applied to an access and mobility management function AMF, and the method includes:

Step 11, receiving a first message sent by a base station, wherein the first message carries the voice VoNR supporting capability of a terminal based on new wireless NR;

step 12, according to the VoNR supporting capability of the terminal, a second message or a third message for controlling the terminal to access a target network or a visiting network is sent to the terminal; the second message is used for rejecting the terminal to access the target network or the visiting network when the VoNR supporting capability of the terminal is VoNR not supported; the third message is used for allowing the terminal to access a target network or a visiting network when the VoNR supporting capability of the terminal is VoNR not supported, and indicating that the target network does not support IMS voice of the IP multimedia system; the VoNR supporting capability of the terminal is that VoNR is not supported.

According to the scheme, the AMF receives the first message sent by the base station, wherein the first message carries the VoNR supporting capability of the terminal; according to the VoNR supporting capability of the terminal, a second message or a third message for controlling the terminal to access the target network or the visiting network is sent to the terminal, wherein the second message or the third message for controlling the terminal to access the target network or the visiting network is sent to the terminal through a base station; the second message is used for rejecting the terminal to access the target network or the visiting network when the VoNR supporting capability of the terminal is VoNR not supported; the third message is used for allowing the terminal to access a target network or a visiting network when the VoNR supporting capability of the terminal is VoNR not supported, and indicating that the target network or the visiting network does not support IMS voice of the IP multimedia system; the VoNR supporting capability of the terminal is that VoNR is not supported; the core network can reject the terminal to access the target network for the terminal which does not support VoNR capability, and can also allow the terminal to access the target network, but simultaneously inform the terminal that the target network does not support IMS voice, so that the terminal does not attempt to access the target network any more in a subsequent preset time period, and the terminal which does not support VoNR capability is flexibly controlled to allow or reject the terminal to access the target network; here, the target network may be a PLMN (public land mobile network) broadcasted by the base station; specifically, the access of the terminal can be allowed or refused based on the flexible issuing policy of the user or the user accessed by the specific PLMN (public land mobile network), for example, the normal access of the EPS Fallback terminal (i.e. the terminal which does not support VoNR capability) user of the A operator and the B operator is allowed, the EPS Fallback terminal user of the C operator and the C operator is refused, and the problem that VoNR voice cannot be used after the terminal is accessed to the network is avoided.

In an optional embodiment of the invention, before receiving the first message sent by the target device, the method further includes:

step 111, according to a preset trigger strategy, sending a terminal wireless capability checking request to the base station; the preset trigger strategy here includes one of the following:

when a terminal initiates a mobility registration update flow crossing a Public Land Mobile Network (PLMN), sending a terminal wireless capability check request to the base station; here, the first message is a terminal wireless capability check response message, and the terminal wireless capability check response message carries VoNR supporting capability of the terminal.

As shown in fig. 2, the AMF sends a terminal radio capability check request (UE radio capability check request) message to the base station based on a preset trigger policy, and carries a terminal radio capability field (UE Radio Capability IE), and requests the base station to carry an IP multimedia system voice support indication field (IMS Voice Support Indicator IE) in a terminal radio capability check response (UE radio capability check response) message.

The preset trigger strategy herein includes, but is not limited to: the registration process initiated by the specific user or the user accessed by the specific PLMN, or the mobility registration update process, or the terminal initiates the registration process, and the network registered before is not the public land mobile network PLMN registered this time, or the terminal initiates the mobility registration update process of the public land mobile network PLMN, and after the AMF receives the registration request (Registration Request) message in the registration process or the mobility registration update process, the terminal wireless capability checking (UE radio capability check) process can be triggered.

The base station carries an IP multimedia system voice support indication field (IMS Voice Support Indicator IE) in a terminal wireless capability check response (UE radio capability check response) message, and the base station can also indicate the VoNR support capability of the terminal by adding a field.

In an optional embodiment of the present invention, the VoNR supporting capability of the terminal is carried by an extension field of an IMS supporting identifier field of the terminal radio capability check response message, or a preset target field of the terminal radio capability check response message is carried, where it is to be noted that the preset target field may be a newly added field in the response message.

Specifically, the VoNR voice support capability may be carried by augmenting IMS Voice Support Indicator field (see table 1 below):

TABLE 1

The field carrying of the response message can also be checked by adding the wireless capability of the terminal, as shown in the following table 2:

TABLE 2

Wherein 9.3.1.X VoNR Support Indicator is as shown in table 3 below:

TABLE 3 Table 3

As shown in fig. 3, an embodiment of the present invention further provides a method for controlling a terminal to access to a network, where the method is applied to a base station, and the method includes:

step 31, sending a first message to an access and mobility management function AMF, the first message carrying a voice VoNR support capability of the terminal based on a new wireless NR;

step 32, receiving a second message or a third message fed back by the AMF according to the VoNR supporting capability of the terminal, and sending the second message or the third message to the terminal; the second message is used for rejecting the terminal to access the target network or the visiting network when the VoNR supporting capability of the terminal is VoNR not supported; and the third message is used for allowing the terminal to access a target network or a visiting network when the VoNR supporting capability of the terminal is VoNR not supported, and indicating that the target network or the visiting network does not support the IMS voice of the IP multimedia system.

In an alternative embodiment of the present invention, before step 31, the method may include:

receiving a terminal wireless capability checking request sent by the AMF; the first message is a terminal wireless capability check response message, and the terminal wireless capability check response message carries the VoNR supporting capability of the terminal.

In an alternative embodiment of the present invention, step 32 may include:

Here, the second message is a registration rejection response message for the terminal in a registration flow or a mobility registration update flow of the terminal, where the registration rejection response message is used to indicate that the terminal is rejected to access the target network or the visited network; or alternatively

In this embodiment, the method on the base station side corresponds to the method on the AMF side, and all the implementation manners of the method on the AMF side are applicable to the embodiment of the method on the base station side, so that the same technical effects can be achieved.

As shown in fig. 4, an embodiment of the present invention further provides a method for controlling a terminal to access a network, which is applied to an access and mobility management function AMF, and the method includes:

step 41, receiving a registration request of a terminal accessing a target network or a visiting network, wherein the registration request carries voice VoNR supporting capability of the terminal based on new wireless NR;

step 42, according to the VoNR supporting capability of the terminal, a second message or a third message for controlling the terminal to access the target network or the visiting network is sent to the terminal; in the specific implementation, a second message or a third message for controlling the terminal to access to the target network or the visited network may be sent to the terminal by the base station, where the second message is used to indicate that the terminal is refused to access to the target network or the visited network when the VoNR supporting capability of the terminal is not capable of supporting VoNR; and the third message is used for allowing the terminal to access a target network or a visiting network when the VoNR supporting capability of the terminal is VoNR not supported, and indicating that the target network or the visiting network does not support the IMS voice of the IP multimedia system.

Here, the VoNR supporting capability of the terminal is not VoNR supporting, and is carried by an extension field of the terminal use setting field of the registration request.

In a specific implementation of this embodiment, if the terminal configuration supports IMS voice, the terminal needs to carry a terminal usage setting (UE's use setting) field in the registration request (Registration Request) message to indicate whether the terminal behavior is voice-centric or data-centric.

The format of the terminal usage setting field (UE's usage setting IE) after carrying the VoNR voice supporting capability is shown in the following table, and the VoNR voice supporting capability can be carried by expanding the "UE's user setting" field to the "VoNR support indicator and UE's user setting" field, specifically as shown in tables 4 and 5 below.

TABLE 4 Table 4

TABLE 5

Here, the VoNR voice support capability may be carried by extending a "UE's user setting" field to a "VoNR support indicator and UE's user setting" field, where an end use setting field ("UE's user setting") may be represented by 1 bit and a VoNR voice support capability indication (VoNR support indicator and UE's user setting ") may be represented by 1 bit.

In an alternative embodiment of the present invention, step 42 may include:

Step 421, in the registration procedure or the mobility registration update procedure of the terminal, according to the VoNR supporting capability of the terminal, a second message or a third message for controlling the terminal to access to the target network or the visited network is sent to the terminal.

The second message is a registration rejection response message for the terminal in a registration process or a mobility registration update process of the terminal, where the registration rejection response message is used to indicate that the terminal is rejected to access the target network or the visited network, where the target network may be a network corresponding to a base station broadcast PLMN;

In this embodiment, the AMF performs an access control procedure based on a user or a specific access PLMN and terminal VoNR supporting capability, and performs one of the following control for a registration or mobility registration update request procedure initiated by a specific user using an EPS Fallback terminal (i.e., a terminal that does not support VoNR capability) and a specific PLMN access user based on a local policy:

Firstly), in a registration process or a mobility registration update process of a terminal, for the terminal, the AMF responds to a registration rejection (Registration Reject) message, that is, the above second message, further, the second message may carry a rejection cause value, for example, may carry an N1 mode capability when the #27-N1 mode non allowed cause value indicates that the terminal closes access, and fast access is 4G; or the portable #11-PLMN non allowed cause value indicates the terminal to enter a state of 5gmm-deregistered and stores the PLMN identity in "forbidden PLMN list" (forbidden PLMN list), and re-performs PLMN search and PLMN selection.

Two) in the registration process or the mobility registration update process of the terminal, for the terminal, the AMF sets IMS voice over PS session over 3GPP access indicator (IMS voice indicating a packet domain session through 3GPP access) to 0 in a 5GS network feature support (network support capability) field in response to a registration accept (Registration Accept) message, indicating that the terminal network side does not support IMS voice, and the subsequent terminal will not attempt to access the network for a certain period of time.

It should be noted that, the local policy herein includes, but is not limited to, executing the policy for a specific user using the EPS Fallback terminal and a specific PLMN access user for all scenarios; or, in a mobility registration update scenario, the AMF only performs the policy, etc., when it determines that the user is redirected from other PLMNs, reselected to the home network.

In the above embodiment of the present invention, the base station notifies the AMF terminal of the VoNR support capability through the terminal radio capability check procedure bearer VoNR Support Indicator (VoNR support indication) field, or the terminal notifies the AMF terminal of the VoNR support capability through the terminal use setting field (UE's usage setting IE) in the registration or mobility registration update request message carrying VoNR Support Indicator (VoNR support indication) information.

The AMF refuses the access flow of the EPS Fallback terminal user of the specific (specific user or specific access PLMN) through the refusal reason values of the register refusal messages carrying #27, #11 and the like, or refuses the access flow of the EPS Fallback terminal user of the specific (specific user or specific access PLMN) through the register accepting message carrying IMS voice over PS session not supported over 3GPP access information; the core network is provided with the capability of rejecting the EPS Fallback end user of a specific user or a specific access PLMN to access a 5G network supporting IMS; and the existing information can be multiplexed in the specific implementation flow, the limited access of the EPS Fallback terminal is realized by adding the field and the AMF processing logic, and the implementation complexity is low.

As shown in fig. 5, an embodiment of the present invention further provides a method for controlling a terminal to access to a network, which is applied to a terminal, and the method includes:

Step 51, sending a registration request of accessing a target network or a visiting network to the AMF through a base station, wherein the registration request carries voice VoNR supporting capability of the terminal based on new wireless NR;

step 52, receiving a second message or a third message fed back by the AMF according to the VoNR supporting capability of the terminal; in specific implementation, the base station may receive a second message or a third message fed back by the AMF according to the VoNR supporting capability of the terminal; the second message is used for rejecting the terminal to access to a target network or a visiting network when the VoNR supporting capability of the terminal is VoNR not supported; and the third message is used for allowing the terminal to access a target network or a visiting network when the VoNR supporting capability of the terminal is VoNR not supported, and indicating that the target network or the visiting network does not support the IMS voice of the IP multimedia system.

Optionally, step 52 may include:

The method is a terminal-side method corresponding to the AMF side, and the implementation of the method on the AMF side is applicable to the embodiment, so that the same technical effects can be achieved.

As shown in fig. 6, an embodiment of the present invention further provides a control device 60 for a terminal to access a network, applied to an access and mobility management function AMF, the device comprising:

A transceiver module 61, configured to receive a first message sent by a base station, where the first message carries a voice VoNR supporting capability of a terminal based on a new wireless NR; according to the VoNR supporting capability of the terminal, a second message or a third message for controlling the terminal to access a target network or a visiting network is sent to the terminal; the second message is used for rejecting the terminal to access the target network or the visiting network when the VoNR supporting capability of the terminal is VoNR not supported; and the third message is used for allowing the terminal to access a target network or a visiting network when the VoNR supporting capability of the terminal is VoNR not supported, and indicating that the target network or the visiting network does not support the IMS voice of the IP multimedia system.

Optionally, before receiving the first message sent by the base station, the transceiver module 61 is further configured to: according to a preset trigger strategy, a terminal wireless capability checking request is sent to the base station; wherein the first message is a terminal wireless capability check response message.

Optionally, the preset trigger policy includes one of the following:

It should be noted that, the apparatus is an apparatus corresponding to the method on the AMF side, and all the implementation manners in the method embodiment described above are applicable to this embodiment, so that the same technical effects can be achieved. It should be noted that the apparatus may further include a processing module 62, configured to process data received and transmitted by the transceiver module 61.

a transceiver module, configured to send a first message to an access and mobility management function AMF, where the first message carries a new wireless NR based voice VoNR support capability of a terminal, receives a second message or a third message fed back by the AMF according to the VoNR support capability of the terminal, and sends the second message or the third message to the terminal; the second message is used for rejecting the terminal to access the target network or the visiting network when the VoNR supporting capability of the terminal is VoNR not supported; and the third message is used for allowing the terminal to access a target network or a visiting network when the VoNR supporting capability of the terminal is VoNR not supported, and indicating that the target network or the visiting network does not support the IMS voice of the IP multimedia system.

Optionally, before sending the first message to the access and mobility management function AMF, the transceiver module is further configured to:

It should be noted that, the apparatus is an apparatus corresponding to the method on the base station side, and all implementation manners in the method embodiment described above are applicable to this embodiment, so that the same technical effects can be achieved.

The device is an AMF device corresponding to the terminal-side method, and all the implementation manners in the method embodiment are applicable to the embodiment, so that the same technical effects can be achieved.

The device is a device on the terminal side corresponding to the method on the terminal side, and all the implementation manners in the method embodiment are applicable to the embodiment, so that the same technical effects can be achieved.

The embodiment of the invention also provides a communication device, which comprises: a processor, a memory storing a computer program which, when executed by the processor, performs the method as described above. All the implementation manners in the method embodiment are applicable to the embodiment, and the same technical effect can be achieved.

Embodiments of the present invention also provide a computer-readable storage medium comprising instructions which, when run on a computer, cause the computer to perform a method as described above. All the implementation manners in the method embodiment are applicable to the embodiment, and the same technical effect can be achieved.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.

Furthermore, it should be noted that in the apparatus and method of the present invention, it is apparent that the components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent aspects of the present invention. Also, the steps of performing the series of processes described above may naturally be performed in chronological order in the order of description, but are not necessarily performed in chronological order, and some steps may be performed in parallel or independently of each other. It will be appreciated by those of ordinary skill in the art that all or any of the steps or components of the methods and apparatus of the present invention may be implemented in hardware, firmware, software, or a combination thereof in any computing device (including processors, storage media, etc.) or network of computing devices, as would be apparent to one of ordinary skill in the art after reading this description of the invention.

The object of the invention can thus also be achieved by running a program or a set of programs on any computing device. The computing device may be a well-known general purpose device. The object of the invention can thus also be achieved by merely providing a program product containing program code for implementing said method or apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is apparent that the storage medium may be any known storage medium or any storage medium developed in the future. It should also be noted that in the apparatus and method of the present invention, it is apparent that the components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent aspects of the present invention. The steps of executing the series of processes may naturally be executed in chronological order in the order described, but are not necessarily executed in chronological order. Some steps may be performed in parallel or independently of each other.

While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

Claims

1. A method for controlling access of a terminal to a network, the method being applied to an access and mobility management function AMF, the method comprising:

2. The method for controlling access to a network by a terminal according to claim 1, wherein before receiving the first message sent by the base station, the method further comprises:

according to a preset trigger strategy, a terminal wireless capability checking request is sent to the base station;

wherein the first message is a terminal wireless capability check response message.

3. The method for controlling access of a terminal to a network according to claim 2, wherein the VoNR supporting capability of the terminal is carried by an extension field of an IMS supporting identification field of an IP multimedia system of the terminal radio capability check response message or by a preset target field of the terminal radio capability check response message.

4. The method for controlling a terminal to access to a network according to claim 2, wherein the preset trigger policy includes one of:

5. A method for controlling access of a terminal to a network, the method being applied to a base station, the method comprising:

6. The method for controlling access to a network by a terminal according to claim 5, wherein before sending the first message to the access and mobility management function AMF, the method further comprises:

7. The method for controlling a terminal to access a network according to claim 5, wherein receiving the second message or the third message fed back by the AMF according to the VoNR supporting capability of the terminal comprises:

8. The method for controlling access to a network by a terminal according to claim 7,

the second message is a registration rejection response message for the terminal in a registration process or a mobility registration update process of the terminal, and the registration rejection response message is used for indicating that the terminal is rejected to access the target network or the visited network; or alternatively

9. A method for controlling access of a terminal to a network, the method being applied to an access and mobility management function AMF, the method comprising:

10. The method for controlling access of a terminal to a network according to claim 9, wherein the VoNR support capability of the terminal is carried by an extension field of a terminal use setting field of the registration request.

11. The method for controlling access of a terminal to a network according to claim 9, wherein transmitting a second message or a third message for controlling access of the terminal to a target network or a visited network to the terminal according to the VoNR supporting capability of the terminal comprises:

12. The method for controlling access to a network by a terminal according to claim 11,

13. A method for controlling access of a terminal to a network, the method being applied to the terminal, the method comprising:

Sending a registration request of accessing a target network or a visiting network to an AMF through a base station, wherein the registration request carries the voice VoNR supporting capability of the terminal based on new wireless NR;

receiving a second message or a third message fed back by the AMF according to the VoNR supporting capability of the terminal; the second message is used for rejecting the terminal to access the target network or the visiting network when the VoNR supporting capability of the terminal is VoNR not supported; and the third message is used for allowing the terminal to access a target network or a visiting network when the VoNR supporting capability of the terminal is VoNR not supported, and indicating that the target network or the visiting network does not support the IMS voice of the IP multimedia system.

14. The method for controlling a terminal to access a network according to claim 13, wherein receiving the second message or the third message fed back by the AMF according to the VoNR supporting capability of the terminal comprises:

15. The method for controlling access to a network by a terminal according to claim 14,

The third message is a registration acceptance response message for the terminal in a registration process or a mobility registration update process of the terminal, where the registration acceptance response message is used to indicate that the terminal is allowed to access the target network or the visited network, and carries indication information that the target network does not support an IMS voice function, and the indication information is used to indicate that the terminal tries to access other networks, and does not try to access the target network or the visited network any more in a preset period of time.

16. A control apparatus for a terminal to access a network, the apparatus being applied to an access and mobility management function AMF, the apparatus comprising:

17. A control apparatus for a terminal to access a network, the apparatus being applied to a base station, the apparatus comprising:

a transceiver module, configured to send a first message to an access and mobility management function AMF, where the first message carries a voice VoNR supporting capability of a terminal based on a new wireless NR; receiving a second message or a third message fed back by the AMF according to the VoNR supporting capability of the terminal, and sending the second message or the third message to the terminal; the second message is used for rejecting the terminal to access the target network or the visiting network when the VoNR supporting capability of the terminal is VoNR not supported; and the third message is used for allowing the terminal to access a target network or a visiting network when the VoNR supporting capability of the terminal is VoNR not supported, and indicating that the target network or the visiting network does not support the IMS voice of the IP multimedia system.

18. A control apparatus for a terminal to access a network, the apparatus being applied to an access and mobility management function AMF, the apparatus comprising:

19. A control apparatus for a terminal to access a network, the apparatus being applied to a terminal, the apparatus comprising:

the receiving and transmitting module is used for sending a registration request of accessing a target network or a visiting network to the AMF through a base station, wherein the registration request carries the voice VoNR supporting capability of the terminal based on new wireless NR; receiving a second message or a third message fed back by the AMF according to the VoNR supporting capability of the terminal; the second message is used for rejecting the terminal to access the target network or the visiting network when the VoNR supporting capability of the terminal is VoNR not supported; and the third message is used for allowing the terminal to access a target network or a visiting network when the VoNR supporting capability of the terminal is VoNR not supported, and indicating that the target network or the visiting network does not support the IMS voice of the IP multimedia system.

20. A communication device, comprising: a processor, a memory storing a computer program which, when run by the processor, performs the method of any one of claims 1 to 4 or the method of any one of claims 5 to 8 or the method of any one of claims 9 to 12 or the method of any one of claims 13 to 15.

21. A computer readable storage medium storing instructions which, when run on a computer, cause the computer to perform the method of any one of claims 1 to 4 or the method of any one of claims 5 to 8 or the method of any one of claims 9 to 12 or the method of any one of claims 13 to 15.