CN115997415A

CN115997415A - Non-land network access method and device

Info

Publication number: CN115997415A
Application number: CN202280004061.8A
Authority: CN
Inventors: 毛玉欣
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-04-21
Also published as: WO2024077455A1

Abstract

The embodiment of the disclosure discloses a method and a device for accessing a non-terrestrial network, which can be applied to the technical field of communication, wherein the method executed by a first AMF comprises the following steps: receiving a first request sent by a terminal device and used for registering with a non-terrestrial network (NTN), wherein the first request comprises first position information and first indication information of the terminal device, and the first indication information is used for indicating whether the terminal device supports access to the Terrestrial Network (TN); determining an NTN registration result according to the first indication information, the first position information and the like; and sending the NTN registration result to the terminal equipment. Therefore, the NTN registration result is ensured to be determined based on reliable position information, and the reliability and the safety of the NTN are improved.

Description

Non-land network access method and device

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to a method and a device for accessing a non-terrestrial network.

Background

Related communication systems have been enhanced to support the service requirements of core networks with satellite access capabilities. When the terminal device uses satellite access, to ensure that regulatory requirements are met, the network will verify from the location information of the terminal device whether the public land mobile network (Public Land Mobile Network, PLMN) currently selected by the terminal device is allowed to operate in the country or region to which the location is located.

Disclosure of Invention

The embodiment of the disclosure provides a method and a device for accessing a non-terrestrial network.

In a first aspect, an embodiment of the present disclosure provides a method for accessing a non-terrestrial network, where the method is performed by a first AMF, the method including:

receiving a first request sent by a terminal device and used for registering with a non-terrestrial network (NTN), wherein the first request comprises first position information and first indication information of the terminal device, and the first indication information is used for indicating whether the terminal device supports access to the Terrestrial Network (TN);

determining an NTN registration result;

and sending the NTN registration result to the terminal equipment.

In the disclosure, after receiving a first request sent by a terminal device, a first AMF determines an NTN registration result according to first location information, first indication information, and the like in the first request, and then sends the NTN registration result to the terminal device. Therefore, the NTN registration result is ensured to be determined based on reliable position information, and the reliability and the safety of the NTN are improved.

In a second aspect, an embodiment of the present disclosure provides a method for accessing a non-terrestrial network, where the method is performed by a terminal device, and the method includes:

sending a first request for registering with a non-terrestrial network (NTN) to a first access and mobility management function (AMF) network element, wherein the first request comprises first position information and first indication information of the terminal equipment, and the first indication information is used for indicating whether the terminal equipment supports access to the Terrestrial Network (TN);

And receiving an NTN registration result sent by the first AMF network element.

In a third aspect, embodiments of the present disclosure provide a communication apparatus, including:

a transceiver module, configured to receive a first request sent by a terminal device and used for registering with a non-terrestrial network NTN, where the first request includes first location information and first indication information of the terminal device, where the first indication information is used to indicate whether the terminal device supports access to the terrestrial network TN;

the processing module is used for determining the NTN registration result;

the receiving and transmitting module is further configured to send the NTN registration result to the terminal device.

In a fourth aspect, embodiments of the present disclosure provide a communication apparatus, including:

a transceiver module, configured to send a first request for registering with a non-terrestrial network NTN to a first access and mobility management function AMF network element, where the first request includes first location information and first indication information of the terminal device, where the first indication information is used to indicate whether the terminal device supports access to the terrestrial network TN;

the transceiver module is further configured to receive an NTN registration result sent by the first AMF network element.

In a fifth aspect, embodiments of the present disclosure provide a communication device comprising a processor, which when invoking a computer program in memory, performs the method of the first aspect described above.

In a sixth aspect, embodiments of the present disclosure provide a communication device comprising a processor that, when invoking a computer program in memory, performs the method of the second aspect described above.

In a seventh aspect, embodiments of the present disclosure provide a communication apparatus comprising a processor and a memory, the memory having a computer program stored therein; the processor executes the computer program stored in the memory to cause the communication device to perform the method of the first aspect described above.

In an eighth aspect, embodiments of the present disclosure provide a communication apparatus comprising a processor and a memory, the memory having a computer program stored therein; the processor executes the computer program stored in the memory to cause the communication device to perform the method of the second aspect described above.

In a ninth aspect, embodiments of the present disclosure provide a communications apparatus comprising a processor and interface circuitry for receiving code instructions and transmitting to the processor, the processor being configured to execute the code instructions to cause the apparatus to perform the method of the first aspect described above.

In a tenth aspect, embodiments of the present disclosure provide a communications device comprising a processor and interface circuitry for receiving code instructions and transmitting to the processor, the processor being configured to execute the code instructions to cause the device to perform the method of the second aspect described above.

In an eleventh aspect, an embodiment of the disclosure provides a communication system, where the system includes a communication device according to the third aspect and a communication device according to the fourth aspect, or the system includes a communication device according to the fifth aspect and a communication device according to the sixth aspect, or the system includes a communication device according to the seventh aspect and a communication device according to the eighth aspect, or the system includes a communication device according to the ninth aspect and a communication device according to the tenth aspect.

In a twelfth aspect, an embodiment of the present invention provides a computer readable storage medium storing instructions for use by the terminal device, where the instructions, when executed, cause the terminal device to perform the method of the first aspect.

In a thirteenth aspect, an embodiment of the present invention provides a computer readable storage medium storing instructions for use by the terminal device, where the instructions, when executed, cause the terminal device to perform the method according to the second aspect.

In a fourteenth aspect, the present disclosure also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

In a fifteenth aspect, the present disclosure also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the second aspect described above. In a sixteenth aspect, the present disclosure provides a chip system comprising at least one processor and an interface for supporting a first AMF to implement the functionality referred to in the first aspect, e.g. to determine or process at least one of data and information referred to in the above-described method. In one possible design, the chip system further includes a memory for holding computer programs and data necessary for the terminal device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In a seventeenth aspect, the present disclosure provides a chip system comprising at least one processor and an interface for supporting a terminal device to implement the functionality referred to in the first aspect, e.g. to determine or process at least one of data and information referred to in the above-mentioned method. In one possible design, the chip system further includes a memory for holding computer programs and data necessary for the terminal device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In an eighteenth aspect, the present disclosure provides a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

In a nineteenth aspect, the present disclosure provides a computer program which, when run on a computer, causes the computer to perform the method of the second aspect described above.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the background of the present disclosure, the following description will explain the drawings that are required to be used in the embodiments or the background of the present disclosure.

Fig. 1 is a schematic architecture diagram of a communication system provided in an embodiment of the present disclosure;

fig. 2 is a flow chart of an access method of a non-terrestrial network according to an embodiment of the disclosure;

fig. 3 is a flow chart of another access method of a non-terrestrial network according to an embodiment of the disclosure;

fig. 4 is a flow chart of another access method of a non-terrestrial network according to an embodiment of the disclosure;

fig. 5 is a flow chart of another access method of a non-terrestrial network according to an embodiment of the disclosure;

fig. 6 is a flow chart of another access method of a non-terrestrial network according to an embodiment of the disclosure;

fig. 7 a) is a flow chart of an access method of a non-terrestrial network according to an embodiment of the disclosure;

Fig. 7 b) is a flow chart of an access method of a non-terrestrial network according to an embodiment of the disclosure;

fig. 7 c) is an interactive schematic diagram of an access method of a non-terrestrial network according to an embodiment of the disclosure;

fig. 8 is an interactive schematic diagram of another method for accessing a non-terrestrial network according to an embodiment of the disclosure;

fig. 9 is an interactive schematic diagram of another method for accessing a non-terrestrial network according to an embodiment of the disclosure;

fig. 10 is an interactive schematic diagram of yet another method for accessing a non-terrestrial network according to an embodiment of the present disclosure;

fig. 11 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure;

fig. 12 is a schematic structural diagram of another communication device provided in an embodiment of the present disclosure;

fig. 13 is a schematic structural diagram of a chip according to an embodiment of the disclosure.

Detailed Description

For ease of understanding, the terms referred to in this disclosure are first introduced.

1. Public land mobile network (Public Land Mobile Network PLMN)

A PLMN is a network established and operated by a government or its approved operators for the purpose of providing land mobile services to the public. It is often necessary for a terminal device to maintain several different types of PLMN lists, each list having multiple PLMNs. Such as a Registered PLMN (RPLMN) list, a Home PLMN (HPLMN) list, a Visited PLMN (VPLMN) list, etc. Different types of PLMNs have different priorities, and when a terminal device performs PLMN selection, the terminal device may select according to the priorities, and report the selected PLMNs to a network, for example, send the selected PLMNs to an access network device or an access and mobility management function (access and mobility management function, AMF) network element in a core network, and so on.

2. Access and mobility management functions (access and mobility management function, AMF)

The AMF is a logical node functional network element at the core network side, which is a terminal and a wireless core network control plane access point, receives all connection and session related information from the user equipment, and performs registration, connection, reachability, and mobility management. In addition, the AMF provides a session management message transmission channel for the terminal device and session management function (session management function, SMF) device, and provides authentication and authentication functions for user access.

3. Positioning management function (location management function, LMF)

The LMF manages the coordination and scheduling of the overall resources required for registering or accessing the location of the terminal devices of the fifth generation mobile communication technology (5th Generation Mobile Communication Technology,5G) core network and calculates and authenticates a final location, as well as a velocity estimate, and possibly an estimate of the achievable accuracy. The LMF acquires a positioning request of a target terminal device from the AMF through an Nlmf interface, and the LMF and the terminal device interact to exchange position information applicable to the assistance of the terminal device and a positioning method based on the terminal device, and interact with a next generation wireless access network (next generation radio access network, NG-RAN) and the like to acquire the position information.

4. Unified data management functions (unified data management, UDM)

The UDM is responsible for management of terminal device identification, subscription data, authentication data, service element registration management of the terminal device (such as AMF currently providing service for the terminal device, for example, when the terminal device switches the accessed AMF, the UDM may also initiate a logoff message to the old AMF, to require the old AMF to delete the user related information).

Referring to fig. 1, fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the disclosure. The communication system may include, but is not limited to, one network device and one terminal device, and the number and form of devices shown in fig. 1 are only for example and not limiting the embodiments of the present disclosure, and may include two or more network devices and two or more terminal devices in practical applications. The communication system shown in fig. 1 is exemplified as including 1 AMF11, one LMF12, one UDM13, and one terminal device 14.

It should be noted that the technical solution of the embodiment of the present disclosure may be applied to various communication systems. For example: a long term evolution (long term evolution, LTE) system, a fifth generation (5th generation,5G) mobile communication system, a 5G New Radio (NR) system, or other future new mobile communication systems, etc.

Optionally, the communication system may further include an access network device. The access network device is an entity used for transmitting or receiving signals at the network side. For example, evolved NodeB (eNB), transmission point (transmission reception point, TRP), next generation NodeB (gNB) in NR system, base station in other future mobile communication system or access node in wireless fidelity (wireless fidelity, wiFi) system, etc. The embodiments of the present disclosure do not limit the specific technology and specific device configuration employed by the network device. The network device provided by the embodiments of the present disclosure may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), the structure of the CU-DU may be used to split the protocol layers of the network device, such as a base station, and the functions of part of the protocol layers are placed in the CU for centralized control, and the functions of part or all of the protocol layers are distributed in the DU, so that the CU centrally controls the DU.

The number of AMFs 11, LMFs 12 and UDMs 13 in embodiments of the present disclosure may be one or more. Which are each a different Network Function (NF) network element of the control plane in the 5G core network.

The terminal device 14 in the embodiment of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device may also be referred to as a terminal device (terminal), a User Equipment (UE), a Mobile Station (MS), a mobile terminal device (MT), etc. The terminal device may be an automobile with a communication function, a smart car, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned-driving (self-driving), a wireless terminal device in teleoperation (remote medical surgery), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), or the like. The embodiment of the present disclosure does not limit the specific technology and the specific device configuration adopted by the terminal device.

It may be understood that, the communication system described in the embodiments of the present disclosure is for more clearly describing the technical solutions of the embodiments of the present disclosure, and is not limited to the technical solutions provided in the embodiments of the present disclosure, and those skilled in the art can know that, with the evolution of the system architecture and the appearance of new service scenarios, the technical solutions provided in the embodiments of the present disclosure are equally applicable to similar technical problems.

In the system, the AMF network element may implement the method shown in any embodiment of fig. 2 to fig. 6 of the present disclosure, and the terminal device may implement the method shown in any embodiment of fig. 7 a) to fig. 7 b) of the present disclosure.

When satellite access is used for the terminal device, in order to ensure that the regulatory requirements are met, the network device needs to verify whether the PLMN currently selected by the terminal device is allowed to operate in the country or region to which the location of the terminal device belongs according to the location information of the terminal device, and the location information generated when the terminal device uses satellite access, for example, the location information generated when the terminal device registers by using a global navigation satellite system (Global Navigation Satellite System, GNSS), may not be reliable. Therefore, in the disclosure, when the terminal device is towards a Non-terrestrial network (Non-Terrestrial Network, NTN), the network device may verify the location information reported by the terminal device in combination with information such as whether the terminal device supports access to the terrestrial network (Terrestrial Network, TN) and coverage of TN, so as to determine a registration result based on the verified location information, and then return the registration result to the terminal device.

The following describes in detail the access method of the non-terrestrial network provided in the embodiment of the present disclosure with reference to the flowcharts.

Referring to fig. 2, fig. 2 is a flow chart of an access method of a non-terrestrial network according to an embodiment of the disclosure. The method provided in this embodiment may be performed by the first AMF network element. As shown in fig. 2, the method may include, but is not limited to, the steps of:

in step 201, a first request sent by a terminal device and used for registering with a non-terrestrial network NTN is received, where the first request includes first location information of the terminal device and first indication information, where the first indication information is used to indicate whether the terminal device supports access to a terrestrial network TN.

Alternatively, the first request may be a NTN registration request in the multiplexed prior art, or may be a new NTN registration request, which is not limited in this disclosure.

Optionally, the first location information is location information generated when the terminal device uses satellite access, such as GNSS location information. The first indication information may be a designated field in the first request, where the designated field has different values, and is used to indicate whether the terminal device supports access to the TN. For example, a value of 1 in the field indicates that the terminal device supports access to the TN, and a value of 0 in the field indicates that the terminal device does not support access to the TN. Alternatively, the first indication information may be a designated information field in the first request. The present disclosure is not limited in this regard.

Optionally, other NTN registration parameters, such as registration type, subscription hidden identifier (subscription concealed identifier, sui) or 5G global unified temporary UE identity (Globally Unique Temporary UE Identity, 5G-GUTI), security parameters, etc., may be included in the first request, which is not limited by the present disclosure.

Alternatively, the first request may be sent by the terminal device to the NTN access network device first, and then forwarded by the NTN access network device to the first AMF, which is not limited in this disclosure.

Step 202, determining NTN registration results.

In the present disclosure, after receiving the first request, the first AMF may first determine, according to the first indication information, whether the terminal device supports access to the TN. If the terminal equipment supports access to the TN and is within the coverage range of the TN, triggering the terminal equipment to report the position information again through the TN; if the terminal device does not support access to the TN or is not within the TN coverage area, the terminal device may be relocated by using the NTN to obtain new location information of the terminal device. And then verifying the first position information based on the newly acquired position information, and further determining the NTN registration result based on the verification result.

Alternatively, the coverage area of the TN may be information of the TN stored in the first AMF in advance. Which can be used to characterize the area that a TN can cover.

Optionally, if the PLMN currently selected by the terminal device allows operation in the country or region to which the location information after verification thereof belongs, the NTN registration result may be that network registration is allowed through NTN; or if the currently selected PLMN of the terminal device is not allowed to operate in the country or region to which the location information after verification thereof belongs, the NTN registration result may be that the network is not allowed to be registered through the NTN.

Step 203, the NTN registration result is sent to the terminal device.

Alternatively, the first AMF may send the NTN registration result to the terminal device through a registration response message, such as through registration response.

Alternatively, the first AMF may indicate the NTN registration result through a field in the registration response message, where the field indicates a different registration result when the values of the field are different.

Referring to fig. 3, fig. 3 is a flowchart illustrating another access method of a non-terrestrial network according to an embodiment of the disclosure. The method provided in this embodiment may be performed by the first AMF network element. As shown in fig. 3, the method may include, but is not limited to, the steps of:

step 301, receiving a first request sent by a terminal device and used for registering with an NTN, where the first request includes first location information of the terminal device and first indication information, where the first indication information is used to indicate whether the terminal device supports access to a land network TN.

The specific implementation manner of step 301 may refer to the detailed description of any embodiment of the disclosure, and will not be repeated here.

Step 302, in response to the first indication information indicating that the terminal device supports access to the TN and that the location indicated by the first location information is located within the coverage area of the TN, a first message is sent to the terminal device, where the first message is used to indicate the terminal device to report the location information through the TN.

Alternatively, the first message may be a registration request acknowledgement message. The first AMF may directly trigger the terminal device to report the location information through the TN by sending the first message. For example, if the first AMF only sends the first message to the terminal device, the terminal device needs to report the location information through the TN; if the first AMF does not send the first message to the terminal device after receiving the first request, the terminal device does not need to report the location information through the TN.

Or, the first AMF may also indicate, through a designated field or an information field in the first message, whether the terminal device needs to report the location information through the TN. For example, if the value of the designated field or the information field in the first message is a first preset value, the terminal device is indicated to need to report its location information through the TN, and if the value of the designated field or the information field in the first message is a second preset value, the terminal device is indicated to need not to report its location information through the TN, etc., which is not limited in this disclosure.

Step 303, receiving second position information of the terminal device, wherein the second position information is determined by TN.

Optionally, the second location information is location information of a terminal device generated by the TN, where the second location information may be sent by a unified data management UDM network element.

Alternatively, the first AMF may receive the second location information sent by the UDM through the Nudm notification message. For example, the first AMF may receive the second location information sent by the UDM through a nudm_sdm_notification message, which is not limited in this disclosure.

In the disclosure, after receiving a first message sent by a first AMF and indicating that the terminal device reports location information through a TN, the terminal device may send a second request for registering with the TN to the AMF, so as to request verification of the location information through the TN. If the second AMF receiving the second request sent by the terminal device is different from the first AMF receiving the first request, the second AMF receiving the TN registration request may send the obtained second location information to the UDM, and the UDM may send the second location information to the first AMF receiving the first request.

Optionally, since the second request is for verifying the first location information through the TN, the second request may further include second indication information, where the second indication information is used to indicate that the first location information is verified through the TN. Therefore, after the second AMF receives the second request, the purpose of the request can be determined to verify the position information of the terminal equipment, so that the second AMF can send the received second position information and second indication information to the UDM.

Optionally, in order to ensure that, when the UDM receives the second location information sent by the second AMF, the AMF to which the second location information needs to be synchronized may be accurately determined, the first AMF may send, after receiving the first request, the identifier of the terminal device and the first location information to the UDM. That is, the present disclosure also includes: and sending a second message to the UDM network element, wherein the second message comprises the first position information and the identification of the terminal equipment.

Alternatively, the second message may be a UE Registration message, such as nudm_uecm_registration, which is not limited by the present disclosure.

Alternatively, the second location information may be the same as or different from the first location information.

In one possible implementation form of the present disclosure, if the second location information is the same as the first location information, the UDM may send the second location information to the first AMF, and the first AMF determines whether the first location information is reliable according to whether the second location information matches the first location information; alternatively, the UDM may not transmit the second location information to the first AMF, and may transmit only the first location information confirmation instruction to indicate to the first AMF that the first location information is reliable.

Alternatively, the second location information may be sent by the terminal device through the second request. That is, the first AMF may further receive a second request sent by the terminal device, where the second request includes second location information and second indication information, where the second indication information is used to indicate that the location information is verified by the TN.

Alternatively, the second request may be sent by the terminal device to the first AMF through the TN access network device, which is not limited in this disclosure.

That is, in the present disclosure, the second AMF that receives the second request may be the same as the first AMF that receives the first request, that is, when the terminal device accesses NTN and TN through the same AMF; or the second AMF receiving the second request is different from the first AMF receiving the first request, that is, the terminal device is NTN and TN respectively accessed through different AMFs, which is not limited in the disclosure.

Step 304, determining the NTN registration result according to the second location information.

In the present disclosure, after receiving the second location information, the first AMF may directly determine whether the PLMN currently selected by the terminal device is allowed to operate in a country or region to which the second location information belongs. If the network is operated in the country or the region to which the second location information belongs, the NTN registration result may be that the network is allowed to be registered through the NTN; or if the currently selected PLMN of the terminal device is not allowed to operate in the country or region to which the second location information belongs, the NTN registration result may be that the network is not allowed to be registered through the NTN.

And step 305, transmitting the NTN registration result to the terminal equipment.

In the disclosure, after receiving a first request sent by a terminal device, a first AMF determines, according to first indication information in the first request, whether the terminal device supports access to a TN, if the terminal device supports access to the TN, and a location indicated by the first location information is located in a coverage area of the TN, the first AMF indicates the terminal device to report the location information of the TN, and when receiving second location information of the terminal device, determines an NTN registration result based on the second location information, and then sends the NTN registration result to the terminal device. Therefore, the NTN registration result is determined based on the second position information determined by TN, so that the NTN registration result is determined based on reliable position information, and the reliability and safety of NTN are improved.

Referring to fig. 4, fig. 4 is a flowchart illustrating another access method of a non-terrestrial network according to an embodiment of the disclosure. The method provided in this embodiment may be performed by the first AMF. As shown in fig. 4, the method may include, but is not limited to, the steps of:

step 401, a first request sent by a terminal device and used for registering with an NTN is received, where the first request includes first location information of the terminal device and first indication information, where the first indication information is used to indicate whether the terminal device supports access to a land network TN.

Step 402, in response to the first indication information indicating that the terminal device supports access to the TN and that the location indicated by the first location information is located within the coverage area of the TN, a first message is sent to the terminal device, where the first message is used to instruct the terminal device to report the location information through the TN.

The specific implementation of

steps

401 and 402 may refer to the detailed description of any embodiment of the disclosure, and will not be repeated here.

Step 403, the second location information is not received within a preset time period after the first message is sent, and a location service request is sent to the location management function LMF network element, where the location service request includes an identifier of the terminal device.

Optionally, the first AMF may determine a preset duration according to a protocol convention; alternatively, the preset duration may be determined according to preset information, which is not limited in this disclosure.

In the disclosure, when the first AMF determines that the terminal device supports access to the TN and that the location where the terminal device is located has coverage of the TN, the first AMF may trigger the terminal device to verify the first location information through the TN. However, in the case that the first location information cannot accurately represent the actual location of the terminal device, for example, the first location information is within the coverage area of the TN, but the actual location of the terminal device is not within the coverage area of the TN, after receiving the first message, the terminal device cannot access the TN, and verifies the first location information through the TN. Therefore, in the present disclosure, the first AMF may start timing after sending the first message to the terminal device, and when the preset duration is reached, the first AMF may determine that the first location information cannot be verified through the TN at present, so that a location service request may be sent to the LMF to request the LMF to locate the terminal device through location service (LCS).

Alternatively, the first AMF may send a Location service request to the LMF via a Location determination request, such as by nlmf_location_ Determine Location service, which is not limited by the present disclosure.

And step 404, receiving third position information of the terminal equipment sent by the LMF network element.

The third location information is location information of the terminal equipment determined by the LMF network element through calling the LCS service.

Step 405, determining the NTN registration result according to the third location information.

Step 406, sending NTN registration results to the terminal device.

The specific implementation process of

steps

405 and 406 may be described with reference to any embodiment of the disclosure, and will not be repeated here.

Optionally, after receiving the third location information sent by the LMF, the first AMF may directly determine whether the country or region in which the third location information is located is in a region in which the PLMN selected by the terminal device is allowed to operate, if so, it may determine that the NTN registration is successful, otherwise, it determines that the NTN registration fails.

Or, the first AMF may compare the third location information with the first location information after receiving the third location information, if the third location information and the first location information are the same, the first location information may be determined to be reliable, and then it is determined whether the country or region in which the first location information is located in the country or region in which the PLMN currently selected by the terminal device is allowed to operate, if so, it may be determined that the NTN registration is successful, otherwise, it is determined that the NTN registration fails. Or if the first location information is different from the third location information, the first AMF may consider that the third location information may reliably reflect the location where the terminal device is actually located, so as to determine whether the country or region where the third location information is located is within the region where the PLMN selected by the terminal device is allowed to operate, and if so, determine that the NTN registration is successful, otherwise determine that the NTN registration fails.

In the disclosure, after receiving a first request sent by a terminal device, a first AMF determines, according to first indication information in the first request, whether the terminal device supports access to a TN, if the terminal device supports access to the TN, and a location indicated by the first location information is located in a coverage area of the TN, the terminal device is instructed to report the location information of the TN, if the second location information of the terminal device is not received within a preset duration, a location service request is sent to an LMF, and then when third location information sent by the LMF is received, an NTN registration result is determined based on the third location information, and then the NTN registration result is sent to the terminal device. Therefore, the NTN registration result is determined based on the third position information determined by the LMF, so that the NTN registration result is determined based on the reliable position information, and the reliability and the safety of the NTN are improved.

Referring to fig. 5, fig. 5 is a flowchart of another access method of a non-terrestrial network according to an embodiment of the disclosure, where the method is performed by a first AMF. As shown in fig. 5, the method may include, but is not limited to, the steps of:

step 501, a first request sent by a terminal device and used for registering with an NTN is received, where the first request includes first location information of the terminal device and first indication information, where the first indication information is used to indicate whether the terminal device supports access to a land network TN.

Step 502, in response to the first indication information indicating that the terminal device supports access to the TN and that the location indicated by the first location information is not located within the coverage area of the TN, sending a location service request to the location management function LMF network element, where the location service request includes an identifier of the terminal device.

In the disclosure, if the first LMF determines that the terminal device supports access to the TN according to the first indication information, but the first location information is not within the coverage area of the TN, that is, the terminal device cannot be located through the TN currently, the LMF may be triggered to locate the terminal device through the LCS service.

Optionally, when the first indication information indicates that the terminal device does not support access to the TN, the first LMF may send a location service request to the LMF network element, where the location service request includes an identifier of the terminal device.

And step 503, receiving third location information of the terminal equipment sent by the LMF network element.

Step 504, determining an NTN registration result according to the third location information.

Step 505, send NTN registration result to terminal device.

The specific implementation manner of the steps 503 to 505 may refer to the detailed description of any embodiment of the disclosure, and will not be repeated here.

In the disclosure, after receiving a first request sent by a terminal device, a first AMF determines, according to first indication information in the first request, whether the terminal device supports access to the TN, if the terminal device supports access to the TN, but a location indicated by the first location information is not located within a coverage area of the TN, the first AMF may trigger the LMF to locate the terminal device, and when receiving third location information sent by the LMF, determine an NTN registration result based on the third location information, and then send the NTN registration result to the terminal device. Therefore, the NTN registration result is determined based on the third position information determined by the LMF, so that the NTN registration result is determined based on the reliable position information, and the reliability and the safety of the NTN are improved. .

Referring to fig. 6, fig. 6 is a flowchart of another access method of a non-terrestrial network according to an embodiment of the disclosure, where the method is performed by a first AMF. As shown in fig. 6, the method may include, but is not limited to, the steps of:

in step 601, a first request sent by a terminal device and used for registering with an NTN is received, where the first request includes first location information of the terminal device and first indication information, where the first indication information is used to indicate whether the terminal device supports access to a land network TN.

Step 602, if the first indication information indicates that the terminal device supports access to the TN, step 603 is executed, otherwise step 607 is executed.

Step 603, the location indicated by the first location information is located in the coverage area of the TN, and step 604 is performed, otherwise step 607 is performed.

Step 604, a first message is sent to the terminal device, where the first message is used to instruct the terminal device to report the location information through the TN.

Step 605 receives the second location information within a preset time period after the first message is sent, and performs step 606, otherwise performs step 607.

Step 606, determining the NTN registration result according to the second location information.

Step 607, sending a location service request to a location management function LMF network element, where the location service request includes an identifier of the terminal device.

Step 608, receiving third location information of the terminal device sent by the LMF network element.

Step 609, determining the NTN registration result according to the third location information.

Step 610, sending NTN registration results to the terminal device.

The specific implementation process of each step may refer to the detailed description of any embodiment of the disclosure, and will not be repeated herein.

In the disclosure, after receiving a first request sent by a terminal device, a first AMF first determines whether the terminal device supports access to a TN, if so, the terminal device can be triggered to report position information through the TN, otherwise, the LMF is triggered to locate the terminal device, and determines an NTN registration result according to the newly obtained position information of the terminal device, and sends the registration result to the terminal device. Therefore, the NTN registration result is ensured to be determined based on reliable position information, and the reliability and the safety of NTN are improved.

Fig. 7 a) is a flowchart of another access method of a non-terrestrial network according to an embodiment of the disclosure, where the method is performed by a terminal device. As shown in fig. 7 a), the method may include, but is not limited to, the steps of:

step 71, a first request for registering with the non-terrestrial network NTN is sent to the first access and mobility management function AMF network element, where the first request includes first location information of the terminal device and first indication information, where the first indication information is used to indicate whether the terminal device supports access to the terrestrial network TN.

The test writing form of the first request, the first location information, the first indication, etc. may refer to the detailed description of any embodiment of the disclosure, and will not be repeated herein.

Optionally, the first AMF is any AMF selected when the terminal device performs network access.

In the disclosure, when a terminal device needs to access a network through a satellite, a first request can be sent to a first AMF, and first indication information indicating whether the terminal device supports access to a TN is carried in the first request, so that the first AMF can determine, according to the first indication information, which mode to verify the first location information, to determine whether the current location of the terminal device allows the PLMN selected by the terminal device to operate.

Step 72, receiving an NTN registration result sent by the first AMF network element.

Alternatively, the terminal device may receive the NTN registration result sent by the first AMF through a registration response message, for example, through registration response.

Alternatively, the terminal device may determine the NTN registration result according to a field in the registration response message, where the field indicates a different registration result when the value of the field is different.

In the disclosure, after receiving the NTN registration result, the terminal device may determine whether it is currently allowed to communicate based on the selected PLMN, and if so, may use the selected PLMN to communicate.

In the disclosure, when the terminal device accesses the network through the satellite, a first request including first indication information indicating whether the terminal device supports access to the TN may be first sent to the first AMF, so that the first AMF may select a suitable manner to verify the first location information according to whether the terminal device supports access to the TN. Therefore, the NTN registration result is ensured to be determined based on reliable position information, and the reliability and the safety of the NTN are improved.

Fig. 7 b) is a flowchart of another access method of a non-terrestrial network according to an embodiment of the disclosure, where the method is performed by a terminal device. As shown in fig. 7 b), the method may include, but is not limited to, the steps of:

step 73, a first request for registering with the non-land network NTN is sent to the first access and mobility management function AMF network element, where the first request includes first location information of the terminal device and first indication information, where the first indication information is used to indicate whether the terminal device supports access to the land network TN.

The specific implementation manner of step 73 may refer to the detailed description of any embodiment of the disclosure, and will not be repeated here.

Step 74, receiving a first message sent by the first AMF network element, where the first message is used to instruct the terminal device to report the location information through the TN.

And step 75, sending a second request for registering with the TN to a second AMF network element, wherein the second request comprises second position information and second indication information determined by the TN, and the second indication information is used for indicating verification of the position information by the TN.

Optionally, the second AMF network element may be the same network element as the first AMF network element, or may be a different network element, which is not limited in this disclosure.

That is, the AMF selected by the terminal device when accessing the NTN may be the same as or different from the AMF selected when accessing the TN.

In the disclosure, if the terminal device supports access to the TN, the first AMF may send a first message to the terminal device to instruct the terminal device to report the location information through the TN, so that the first AMF may obtain the location determined by the terminal device through the TN, and further determine the NTN registration result based on the reliable location information.

Optionally, if the second AMF is the same as the first AMF, the terminal device may directly send the second location information determined by the TN to the first AMF through the second request, so that the first AMF may directly determine the NTN registration result based on the second location information.

Or if the second AMF is different from the first AMF, after the terminal device sends the second location information to the second AMF through the second request, the second AMF may resynchronize the second location information to the first AMF through the UDM, so that the first AMF determines the NTN registration result based on the second location information.

In addition, since the purpose of sending the second request by the terminal device is not to access the TN, but to verify the location of the NTN through the TN, the second request may further include second indication information. The implementation form of the second instruction information may refer to the detailed description of any embodiment of the disclosure, which is not repeated here.

Optionally, after the terminal device sends the second request, the second AMF may further return a request response to the terminal device after synchronizing the second location information to the UDM, so as to notify the terminal device that the location information verification has been completed, which is not limited in the present disclosure.

Step 76, receiving NTN registration results sent by the first AMF network element.

In the disclosure, when a terminal device accesses a network through a satellite, a first request including first indication information indicating whether the terminal device supports access to a TN is first sent to a first AMF, and after receiving a first message returned by the first AMF, a second request is sent to a second AMF to request verification of an NTN location through the TN, so that the first AMF can determine an NTN registration result according to the verified location information. Therefore, the NTN registration result is ensured to be determined based on reliable position information, and the reliability and the safety of the NTN are improved.

Fig. 7 c) is an interaction schematic diagram of an access method of a non-terrestrial network according to an embodiment of the disclosure. As shown in fig. 7 c), this embodiment takes an example that the terminal device supports access to the TN and the location indicated by the first location information is located in the coverage area of the TN, and in addition, in this embodiment, it is assumed that the AMFs of the first request and the second request sent by the terminal device are different AMFs, the method may include, but is not limited to, the following steps:

In step 701, the first AMF receives a first request sent by a terminal device and used for registering with NTN, where the first request includes first location information and first indication information.

In step 702, the first AMF sends first location information and an identifier of the terminal device to the UDM.

In step 703, the first AMF sends a first message to the terminal device, where the first message is used to instruct the terminal device to report the location information through the TN.

The step 702 and the step 703 may be performed simultaneously, or the step 703 may be performed first and then the step 702 may be performed, which is not limited in this disclosure.

In step 704, the terminal device sends a second request for registering with the TN to the second AMF, where the second request includes second location information and second indication information determined by the TN.

Step 705, the second AMF sends second location information and second indication information to the UDM.

In step 706, the udm sends the second location information to the first AMF.

In step 707, the first AMF determines an NTN registration result according to the second location information.

Step 708, returning the NTN registration result to the terminal device.

In step 709, the udm returns a reject message to the second AMF.

Optionally, a reject reason, such as NTN location information verification, may be included in the reject message, which is not limited by the present disclosure.

The steps 706 and 709 may be performed simultaneously, or the step 709 may be performed first and then the step 706 may be performed, which is not limited in this disclosure.

In step 710, the second AMF returns an NTN location verification complete message to the terminal device.

In the disclosure, after receiving a first request sent by a terminal device, a first AMF sends first location information and a terminal device identifier to a UDM, then triggers the terminal device to report the location information through a TN, then the terminal device can report the location through the TN, after receiving second location information returned by the UDM, the first AMF can determine an NTN registration result according to the second location information, and sends the registration result to the terminal device. Therefore, the NTN registration result is ensured to be determined based on reliable position information, and the reliability and the safety of NTN are improved.

Referring to fig. 8, fig. 8 is an interaction schematic diagram of an access method of a non-terrestrial network according to an embodiment of the disclosure. As shown in fig. 8, this embodiment takes an example that the terminal device supports access to the TN and the location indicated by the first location information is located in the coverage area of the TN, and in addition, in this embodiment, it is assumed that the AMF for receiving the first request and the second request sent by the terminal device is the same AMF, the method may include, but is not limited to, the following steps:

In step 801, a first AMF receives a first request sent by a terminal device and used for registering with an NTN, where the first request includes first location information and first indication information.

Step 802, the first AMF sends a first message to the terminal device, where the first message is used to instruct the terminal device to report location information through the TN.

In step 803, the terminal device sends a second request for registering with the TN to the first AMF, where the second request includes second location information and second indication information.

In step 804, the first AMF determines an NTN registration result according to the second location information.

Step 805, returning an NTN registration result to the terminal device.

In the disclosure, after receiving a first request sent by a terminal device, a first AMF triggers the terminal device to report position information through a TN, then the terminal device can report position through the TN, after receiving second position information returned by the terminal device, the first AMF can determine an NTN registration result according to the second position information, and send the registration result to the terminal device. Therefore, the NTN registration result is ensured to be determined based on reliable position information, and the reliability and the safety of NTN are improved.

Referring to fig. 9, fig. 9 is an interaction schematic diagram of an access method of a non-terrestrial network according to an embodiment of the disclosure. As shown in fig. 9, this embodiment takes an example that the terminal device supports access to the TN and the location indicated by the first location information is located in the coverage area of the TN, and in addition, in this embodiment, it is assumed that the AMF for receiving the first request and the second request sent by the terminal device is the same AMF, the method may include, but is not limited to, the following steps:

In step 901, the first AMF receives a first request sent by a terminal device and used for registering with NTN, where the first request includes first location information and first indication information.

In step 902, the first AMF sends a first message to the terminal device, where the first message is used to instruct the terminal device to report location information through the TN.

In step 903, the first AMF does not receive the second location information within a preset time period after sending the first message, and sends a location service request to the LMF network element, where the location service request includes an identifier of the terminal device.

And step 904, receiving third position information of the terminal equipment sent by the LMF network element.

In step 905, the NTN registration result is determined according to the third location information.

Step 906, returning the NTN registration result to the terminal device.

In the disclosure, after receiving a first request sent by a terminal device, a first AMF triggers the terminal device to report position information through a TN first, then the terminal device can report position through the TN, if the first AMF does not receive second position information returned by the terminal device within a preset time period, then the first AMF is triggered to locate the terminal device, then when receiving third position information returned by the LMF, an NTN registration result can be determined according to the third position information, and the registration result is sent to the terminal device. Therefore, the NTN registration result is ensured to be determined based on reliable position information, and the reliability and the safety of NTN are improved.

Referring to fig. 10, fig. 10 is an interaction schematic diagram of an access method of a non-terrestrial network according to an embodiment of the disclosure. As shown in fig. 10, in this embodiment, taking an example that the terminal device supports access to the TN, but the location indicated by the first location information is located in the coverage area of the TN, or that the terminal device does not support access to the TN, the method may include, but is not limited to, the following steps:

in step 1001, the first AMF receives a first request sent by a terminal device and used for registering with an NTN, where the first request includes first location information and first indication information.

Step 1002, a location service request is sent to a location management function LMF network element, where the location service request includes an identifier of a terminal device.

Step 1003, receiving third location information of the terminal device sent by the LMF network element.

Step 1004, determining the NTN registration result according to the third location information.

Step 1005, returning an NTN registration result to the terminal device.

In the disclosure, after receiving a first request sent by a terminal device, a first AMF first triggers an LMF to locate the terminal device, and then when receiving third location information returned by the LMF, the first AMF may determine an NTN registration result according to the third location information, and send the registration result to the terminal device. Therefore, the NTN registration result is ensured to be determined based on reliable position information, and the reliability and the safety of NTN are improved.

Referring to fig. 11, fig. 11 is a schematic structural diagram of a communication device according to an embodiment of the disclosure. The communication device 1100 shown in fig. 9 may include a transceiver module 1101 and a processing module 1102. The transceiver module 1101 may include a transmitting module for implementing a transmitting function and/or a receiving module for implementing a receiving function, and the transceiver module 1101 may implement the transmitting function and/or the receiving function.

It is to be understood that the communication device 1100 may be the first AMF, or may be a device in the first AMF, or may be a device that can be used in cooperation with the first AMF.

The communication apparatus 1100 is on the first AMF side, wherein:

a transceiver module 1101, configured to receive a first request sent by a terminal device and used for registering with a non-terrestrial network NTN, where the first request includes first location information and first indication information of the terminal device, where the first indication information is used to indicate whether the terminal device supports access to the terrestrial network TN;

a processing module 1102, configured to determine an NTN registration result;

the transceiver module 1101 is further configured to send the NTN registration result to the terminal device.

Optionally, the processing module 1102 is further configured to, in response to the first indication information indicating that the terminal device supports access to a TN, where a location indicated by the first location information is located within a coverage area of the TN, send a first message to the terminal device, where the first message is used to indicate the terminal device to report the location information through the TN;

The transceiver module 1101 is further configured to receive second location information of the terminal device, where the second location information is determined by TN;

the processing module 1102 is further configured to determine an NTN registration result according to the second location information.

Optionally, the transceiver module 1101 is further configured to:

receiving the second position information sent by the Unified Data Management (UDM) network element, wherein the second position information is an AMF sent to the UDM by a second AMF, and the second AMF is an AMF for receiving a second request for registering with a TN, which is sent by the terminal equipment; or,

receiving a second request sent by the terminal equipment and used for registering with the TN;

the second request includes the second location information and second indication information, where the second indication information is used to indicate verification of the location information by TN.

Optionally, the transceiver module 1101 is further configured to:

and sending a second message to the UDM network element, wherein the second message comprises the first position information and the identification of the terminal equipment.

Optionally, the transceiver module 1101 is further configured to:

the second position information is not received within a preset time period after the first message is sent, and a positioning service request is sent to a positioning management function (LMF) network element, wherein the positioning service request comprises the identification of the terminal equipment;

Receiving third position information of the terminal equipment, which is sent by the LMF network element;

the processing module 1102 is further configured to determine an NTN registration result according to the third location information.

Optionally, the transceiver module 1101 is further configured to:

responding to the first indication information to indicate that the terminal equipment supports access to the TN, and the position indicated by the first position information is not located in the coverage range of the TN, and sending a positioning service request to a positioning management function (LMF) network element, wherein the positioning service request comprises an identifier of the terminal equipment;

Optionally, the transceiver module 1101 is further configured to:

responding to the first indication information to indicate that the terminal equipment does not support access to TN, and sending a positioning service request to a positioning management function (LMF) network element, wherein the positioning service request comprises an identifier of the terminal equipment;

In the disclosure, after receiving a first request sent by a terminal device, a communication device determines an NTN registration result according to first location information, first indication information, and the like in the first request, and then sends the NTN registration result to the terminal device. Therefore, the NTN registration result is ensured to be determined based on reliable position information, and the reliability and the safety of the NTN are improved.

Alternatively, the communication apparatus 1100 may be a terminal device, or may be an apparatus in a terminal device, or may be an apparatus that can be used in cooperation with a terminal device.

The communication apparatus 1100 is on the terminal device side, wherein:

a transceiver module 1101, configured to send, to a first access and mobility management function AMF network element, a first request for registering with a non-terrestrial network NTN, where the first request includes first location information and first indication information of the terminal device, where the first indication information is used to indicate whether the terminal device supports access to the terrestrial network TN;

the transceiver module 1101 is further configured to receive an NTN registration result sent by the first AMF network element.

Optionally, the transceiver module 1101 is further configured to:

receiving a first message sent by the first AMF network element, wherein the first message is used for indicating the terminal equipment to report position information through TN;

And sending a second request for registering with the TN to a second AMF network element, wherein the second request comprises second position information and second indication information determined by the TN, and the second indication information is used for indicating verification of the position information by the TN.

Referring to fig. 12, fig. 12 is a schematic structural diagram of another communication device according to an embodiment of the disclosure. The communication device 1200 may be a first AMF, or may be a chip, a system on a chip, a processor, or the like that supports the first AMF to implement the method described above; alternatively, the communication apparatus 1200 may be a terminal device, or may be a chip, a chip system, a processor, or the like that supports the terminal device to implement the above method. The device can be used for realizing the method described in the method embodiment, and can be particularly referred to the description in the method embodiment.

The communications apparatus 1200 can include one or more processors 1201. The processor 1201 may be a general purpose processor, a special purpose processor, or the like. For example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., base stations, baseband chips, terminal equipment chips, DUs or CUs, etc.), execute computer programs, and process data of the computer programs.

Optionally, the communication device 1200 may further include one or more memories 1202, on which a computer program 1204 may be stored, and the processor 1201 executes the computer program 1204, so that the communication device 1200 performs the method described in the above method embodiments. Optionally, the memory 1202 may also store data. The communication device 1200 and the memory 1202 may be provided separately or may be integrated.

Optionally, the communication device 1200 may further include a transceiver 1205, an antenna 1206. The transceiver 1205 may be referred to as a transceiver unit, transceiver circuitry, or the like, for implementing a transceiver function. The transceiver 1205 may include a receiver, which may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function.

Optionally, one or more interface circuits 1207 may also be included in the communications device 1200. The interface circuit 1207 is configured to receive code instructions and transmit the code instructions to the processor 1201. The processor 1201 executes the code instructions to cause the communication device 1200 to perform the method described in the method embodiments described above.

The transceiver 1205 in the communication device 1200 may be used to perform the transceiving steps in the figures described above, and the processor 1201 may be used to perform the processing steps in the figures described above.

In one implementation, a transceiver for implementing the receive and transmit functions may be included in the processor 1201. For example, the transceiver may be a transceiver circuit, or an interface circuit. The transceiver circuitry, interface or interface circuitry for implementing the receive and transmit functions may be separate or may be integrated. The transceiver circuit, interface or interface circuit may be used for reading and writing codes/data, or the transceiver circuit, interface or interface circuit may be used for transmitting or transferring signals.

In one implementation, the processor 1201 may store a computer program 1203, where the computer program 1203 runs on the processor 1201, and may cause the communication apparatus 1200 to perform the method described in the above method embodiment. The computer program 1203 may be solidified in the processor 1201, in which case the processor 1201 may be implemented in hardware.

In one implementation, the communication apparatus 1200 may include circuitry that may implement the functions of transmitting or receiving or communicating in the foregoing method embodiments. The processors and transceivers described in this disclosure may be implemented on integrated circuits (integrated circuit, ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (application specific integrated circuit, ASIC), printed circuit boards (printed circuit board, PCB), electronic devices, and the like. The processor and transceiver may also be fabricated using a variety of IC process technologies such as complementary metal oxide semiconductor (complementary metal oxide semiconductor, CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication apparatus described in the above embodiment may be a network device or an intelligent relay, but the scope of the communication apparatus described in the present disclosure is not limited thereto, and the structure of the communication apparatus may not be limited by fig. 12. The communication means may be a stand-alone device or may be part of a larger device. For example, the communication device may be:

(1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem;

(2) A set of one or more ICs, optionally including storage means for storing data, a computer program;

(3) An ASIC, such as a Modem (Modem);

(4) Modules that may be embedded within other devices;

(5) A receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligent device, and the like;

(6) Others, and so on.

For the case where the communication device may be a chip or a chip system, reference may be made to the schematic structural diagram of the chip shown in fig. 13. The chip shown in fig. 13 includes a processor 1301 and an interface 1302. Wherein the number of processors 1301 may be one or more, and the number of interfaces 1302 may be a plurality.

For the case where the chip is used to implement the functions of the terminal device in the embodiments of the present disclosure.

Optionally, the chip further comprises a memory 1303, the memory 1303 being configured to store necessary computer programs and data.

Those of skill in the art will further appreciate that the various illustrative logical blocks (illustrative logical block) and steps (step) described in connection with the embodiments of the disclosure may be implemented by electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Those skilled in the art may implement the described functionality in varying ways for each particular application, but such implementation is not to be understood as beyond the scope of the embodiments of the present disclosure.

The present disclosure also provides a readable storage medium having instructions stored thereon which, when executed by a computer, perform the functions of any of the method embodiments described above.

The present disclosure also provides a computer program product which, when executed by a computer, performs the functions of any of the method embodiments described above.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer programs. When the computer program is loaded and executed on a computer, the flow or functions described in accordance with the embodiments of the present disclosure are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer program may be stored in or transmitted from one computer readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriberline, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means from one website, computer, server, or data center. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

Those of ordinary skill in the art will appreciate that: the various numbers of first, second, etc. referred to in this disclosure are merely for ease of description and are not intended to limit the scope of embodiments of this disclosure, nor to indicate sequencing.

At least one of the present disclosure may also be described as one or more, a plurality may be two, three, four or more, and the present disclosure is not limited. In the embodiment of the disclosure, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "a", "B", "C", and "D", and the technical features described by "first", "second", "third", "a", "B", "C", and "D" are not in sequence or in order of magnitude.

The correspondence relationships shown in the tables in the present disclosure may be covered or predefined. The values of the information in each table are merely examples, and other values may be covered, and the disclosure is not limited thereto. In the correspondence between the coverage information and each parameter, it is not necessarily required to cover all the correspondence shown in each table. For example, in the table in the present disclosure, the correspondence shown by some rows may not be covered. For another example, appropriate morphing adjustments, e.g., splitting, merging, etc., may be made based on the tables described above. The names of the parameters indicated in the tables may be other names which are understood by the communication device, and the values or expressions of the parameters may be other values or expressions which are understood by the communication device. When the tables are implemented, other data structures may be used, for example, an array, a queue, a container, a stack, a linear table, a pointer, a linked list, a tree, a graph, a structure, a class, a heap, a hash table, or a hash table.

Predefined in this disclosure may be understood as defining, predefining, storing, pre-negotiating, pre-covering, curing, or pre-firing.

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 disclosure.

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.

The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. An access method for a non-terrestrial network, performed by a first access and mobility management function AMF network element, the method comprising:

determining an NTN registration result;

and sending the NTN registration result to the terminal equipment.

2. The method of claim 1, wherein the determining NTN registration results comprises:

responding to the first indication information to indicate that the terminal equipment supports access to the TN, and the position indicated by the first position information is located in the coverage range of the TN, and sending a first message to the terminal equipment, wherein the first message is used for indicating the terminal equipment to report the position information through the TN;

receiving second position information of the terminal equipment, wherein the second position information is determined through TN;

and determining an NTN registration result according to the second position information.

3. The method of claim 2, wherein the receiving the second location information of the terminal device comprises:

4. The method of claim 3, further comprising, prior to said receiving said second location information sent by a unified data management, UDM, network element:

5. The method of any one of claims 2-4, further comprising:

and determining an NTN registration result according to the third position information.

6. The method of claim 1, wherein the determining NTN registration results comprises:

7. The method of claim 1, wherein the determining NTN registration results comprises:

8. A method of accessing a non-terrestrial network, performed by a terminal device, the method comprising:

and receiving an NTN registration result sent by the first AMF network element.

9. The method of claim 8, further comprising, after the sending the first request to the access and mobility management function, AMF, network element for registering with a non-terrestrial network, NTN:

10. A communication device, comprising:

the processing module is used for determining the NTN registration result;

11. A communication device, comprising:

12. A communication system, characterized in that the communication system comprises an AMF for performing the method according to any one of claims 1-7 and a terminal device for performing the method according to claim 8 or 9.

13. A communication device, characterized in that the device comprises a processor and a memory, the memory having stored therein a computer program, the processor executing the computer program stored in the memory to cause the device to perform the method according to any one of claims 1 to 7 or to perform the method according to claim 8 or 9.

14. A computer readable storage medium storing instructions which, when executed, cause the method of any one of claims 1 to 7 to be implemented or cause the method of claim 8 or 9 to be implemented.