CN-115997415-B - Non-land network access method and device

CN115997415BCN 115997415 BCN115997415 BCN 115997415BCN-115997415-B

Abstract

The embodiment of the disclosure discloses an access method and device of a non-terrestrial network, which can be applied to the technical field of communication, wherein the method executed by a first AMF comprises the steps of receiving a first request sent by terminal equipment 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 equipment, the first indication information is used for indicating whether the terminal equipment 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.

Inventors

MAO YUXIN

Assignees

北京小米移动软件有限公司

Dates

Publication Date: 20260508
Application Date: 20221010

Claims (11)

1. An access method for a non-terrestrial network, performed by a first access and mobility management function AMF network element, the method comprising: 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) or not; and sending the NTN registration result to the terminal equipment, wherein the determined NTN registration result comprises any one of the following steps: 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 area of the TN, 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; Responding to the first indication information to indicate that the terminal equipment supports access to TN, and the position indicated by the first position information is not located in the coverage range of TN, 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; Responding to the first indication information to indicate that the terminal equipment does not support access to TN, 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, receiving third position information of the terminal equipment sent by the LMF network element, and determining an NTN registration result according to the third position information.
2. The method of claim 1, wherein the receiving the second location information of the terminal device comprises: Receiving the second location information sent by the Unified Data Management (UDM) network element, wherein the second location information is an AMF sent to the UDM by a second AMF, and the second AMF is an AMF for receiving a second request sent by the terminal equipment and used for registering with a TN, 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.
3. The method of claim 2, further comprising, prior to said receiving said second location information sent by a unified data management, UDM, network element: 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.
4. A method according to any one of claims 1-3, further comprising: 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; and determining an NTN registration result according to the third position information.
5. A method of accessing a non-terrestrial network, performed by a terminal device, the method comprising: 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); Receiving an NTN registration result sent by the first AMF network element, where the process of determining the NTN registration result by the first AMF includes any one of the following: 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 area of the TN, 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; Responding to the first indication information to indicate that the terminal equipment supports access to TN, and the position indicated by the first position information is not located in the coverage range of TN, 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; Responding to the first indication information to indicate that the terminal equipment does not support access to TN, 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, receiving third position information of the terminal equipment sent by the LMF network element, and determining an NTN registration result according to the third position information.
6. The method of claim 5, further comprising, after the sending the first request to the first access and mobility management function, AMF, network element for registering with a non-terrestrial network, NTN, receiving a first message sent by the first AMF network element in response to the first indication information indicating that the terminal device supports access to a TN and that the location indicated by the first location information is within a coverage area of the TN, wherein the first message is used to instruct the terminal device to report location information through the 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.
7. A communication device, comprising: 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; The receiving and transmitting module is further configured to send a first message to the terminal device 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, where the first message is used to instruct the terminal device to report location information through the TN, receive second location information of the terminal device, where the second location information is determined through the TN, and the processing module is further configured to determine an NTN registration result according to the second location information, or The receiving and transmitting module is further configured to send a location service request to a location management function LMF network element, where the location service request includes an identifier of the terminal device, receive third location information of the terminal device sent by the LMF network element, and the processing module is further configured to determine an NTN registration result according to the third location information, or The receiving-transmitting module is further configured to send a location service request to a location management function LMF network element in response to the first indication information indicating that the terminal device does not support access to the TN, where the location service request includes an identifier of the terminal device, receive third location information of the terminal device sent by the LMF network element, and determine an NTN registration result according to the third location information.
8. A communication device, comprising: 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 a terminal device, where the first indication information is used to indicate whether the terminal device supports access to a terrestrial network TN; the transceiver module is further configured to receive an NTN registration result sent by the first AMF network element, where the process of determining the NTN registration result by the first AMF includes any one of the following: 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 area of the TN, 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; Responding to the first indication information to indicate that the terminal equipment supports access to TN, and the position indicated by the first position information is not located in the coverage range of TN, 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; Responding to the first indication information to indicate that the terminal equipment does not support access to TN, 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, receiving third position information of the terminal equipment sent by the LMF network element, and determining an NTN registration result according to the third position information.
9. A communication system, characterized in that the communication system comprises an AMF for performing the method according to any one of claims 1-4 and a terminal device for performing the method according to claim 5 or 6.
10. 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 4 or to perform the method according to claim 5 or 6.
11. A computer readable storage medium storing instructions which, when executed by a processor, cause the method of any one of claims 1 to 4 to be implemented or cause the method of claim 5 or 6 to be implemented.

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, an embodiment of the present disclosure provides a communication apparatus, where the communication apparatus includes a processor and a memory, where the memory stores a computer program, and the processor executes the computer program stored in the memory, so that the communication apparatus performs the method described in the first aspect. In an eighth aspect, an embodiment of the present disclosure provides a communication apparatus, where the communication apparatus includes a processor and a mem